Method and apparatus for reducing sulphur and ash content of coal

Claim 3

A method of separating a salable coal product from a solid material containing coal as set forth in claim 1 which includes the step of feeding a portion of the solids-water mixture withdrawn from the bottom of said mixing chamber to a second cyclone separator at about 4 to 6 p.s.i., said second cyclone separator being fed in parallel with said first-mentioned cyclone separator and operating in substantially the same manner as said first cyclone separator.

Claim 4

A method of separating a salable coal product from a solid material containing coal therein as set forth in claim 1 wherein said solids are introduced into said mixing zone at a rate of about 1.3 to 1.7 pounds per gallon of total water introduced into said mixing chamber and mixing zone.

Claim 5

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing chamber, means establishing a mixing zone located centrally within said mixing chamber, said mixing zone being open at the top and the bottom and communicating at said bottom with said mixing chamber, means for introducing a precrushed and pre-screened quantity of said solid material of particle size 1 1/4 X 0 inches into said mixing zone, means for introducing a first stream of water downwardly and centrally into said mixing zone to create a condition of turbulence within said zone and within said mixing chamber, means for introducing a second stream of water into said mixing chamber under substantially quiescent conditions and adjacent the bottom of said mixing chamber, means for withdrawing a stream of solids-water mixture from the bottom of said mixing chamber, a cyclone separator, means for introducing said solids-water mixture tangentially into said cyclone separator, a vortex finder supported centrally within said cyclone separator, said vortex finder having a diameter equal to about 1 1/3 the diameter of said solids-liquid stream and having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said solids-liquid stream, said vortex finder having an upper end extending upwardly above the top of said cyclone separator, a first conical member located above the bottom of said cyclone separator and adjacent the outer surface thereof, said first conical member having a cone angle of generation approximately equal to 68*, a second conical member extending from said first conical member to said bottom of said cyclone separator and having a cone angle of generation approximately equal to 53*, a third conical member below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with an opening provided at the bottom of said second conical member, said third conical member having a cone angle of generation approximately equal to 7*, means for withdrawing a solids-water mixture from the upper end of said vortex finder and for treating the mixture to remove water therefrom and recover a solid coal product, means for withdrawing a solids-water mixture from the bottom of said cyclone separator and for treating the mixture to remove water therefrom and to obtain a refuse, and means for recycling the water removed from said mixtures.

Claim 6

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing chamber, means establishing a mixing zone located centrally within said mixing chamber, said mixing zone being open at the top and the bottom and communicating at said bottom with said mixing chamber, means for introducing a precrushed and pre-screened quantity of said solid material of particle size 1 1/4 X 0 inches into said mixing zone, means for introducing a first stream of water downwardly and centrally into said mixing zone to create a condition of turbulence within said zone and within said mixing chamber, means for introducing a second stream of water into said mixing chamber under substantially quiescent conditions and adjacent the bottom of said mixing chamber, means for withdrawing a stream of solids-water mixture from the bottom of said mixing chamber, a cyclone separator, means for introducing said solids-water mixture tangentially into said cyclone separator, a vortex finder supported centrally within said cyclone separator, said vortex finder having a diameter equal to about 1 1/3 the diameter of said solids-liquid stream and having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said solids-liquid stream, said vortex finder having an upper end extending upwardly above the top of said cyclone separator, a first conical member located above the bottom of said cyclone separator and adjacent the outer surface thereof, said first conical member having a cone angle of generation approximately equal to 68*, a second conical member extending from said first conical member to said bottom of said cyclone separator and having a cone angle of generation approximately equal to 53*, a third conical member below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with an opening provided at the bottom of said second conical member, said third conical member having a cone angle of generation approximately equal to 7*, means for withdrawing a solids-water mixture from the upper end of said vortex finder and for treating the mixture to remove water therefrom and recover a solid coal product, means for withdrawing a solids-water mixture from the bottom of said cyclone separator and for treating the mixture to remove water therefrom and to obtain a refuse, and means for recycling the water removed from said mixtures.

Claim 7

Apparatus for separating a salable coal product from a solid material containing coal as set forth in claim 4 including a second cyclone separator, means for introducing a portion of the solids-water mixture withdrawn from the bottom of said mixing chamber to said second cyclone separator at about, said second cyclone separator being operated in parallel with said firstmentioned cyclone separator, said secOnd cyclone separator having the same internal components and dimensions as set forth above with respect to said first cyclone separator.

Claim 8

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfth of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening within said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe at about 65 p.s.i. to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe at about 2 to 5 p.s.i. under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches at a rate equal to about 1.3 to 1.7 pounds of solid per gallon of water of the total water introduced into said tank, a cyclone separator having a vertical cylindrical outer casing whose inner diameter is substantially equal to its height, said cylindrical casing being substantially closed at the tops and bottoms thereof, a fourth pipe leading tangentially into said cylindrical casing adjacent the top thereof, the diameter of said fourth pipe being substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being slighly in excess of three times the diameter of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture into said cyclone separator at about 4 to 6 p.s.i. and at a rate equal to the rate of introduction of total water into said mixing tank, a vortex finder concentrically located within said cylindrical casing of said cyclone separator, said vortex finder having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said first pipe, the internal diameter of said vortex finder being equal to about 1 1/3 the diameter of said first pipe, the upper end of said vortex finder extending upwardly above the top of said cylindrical casing, means providing a seal between the side edge of said vortex finder and the upper end of said cylindrical casing, means for providing vertical adjustment of said vortex finder, a flat plate at the bottom of said cylindrical casing of said cyclone separator, an opening centrally located in said bottom of said casing substantially equal in diameter to the diameter of said vortex finder, a compound conical dish resting on said bottom Of said casing and having a lower opening substantially equal to and mating with the opening in said bottom, said compound conical dish being formed of two conical surfaaces, the first of which extends from adjacent the internal surface of said cylindrical casing to a circular line of intersection intermediate the internal surface of said casing and said opening in said bottom and having a cone angle of generation approximately equal to 68*, said conical dish also having a second conical surface extending from said circular line of intersection to said bottom opening and having a conical angle of generation approximately equal to 53*, a nozzle connected below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with the opening in said bottom, the lower end of said nozzle terminating in an opening having a diameter slightly greater than one-half of the diameter of said first pipe, said nozzle having an internal conical surface extending from the upper opening of said nozzle to the lower opening thereof at a cone angle of generation approximately equal to 7*, the vertical height of said nozzle being slightly in excess of one-half of the diameter of said cylindrical casing, means for treating the effluent solids-water mixture issuing from the top of said vortex finder to remove water therefrom and recover a solid coal product, means for treating the solids-water effluent from the nozzle at the bottom of said cyclone separator for removing water therefrom and refuse, and means for recycling the water from said refuse and said product treating means.

Claim 9

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfth of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening within said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe at about 65 p.s.i. to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe at about 2 to 5 p.s.i. under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches at a rate equal to about 1.3 to 1.7 pounds of solid per gallon of water of the total water introduced into said tank, a cyclone separator having a vertical cylindrical outer casing whose inner diameter is substantially equal to its height, said cylindrical casing being substantially closed at the tops and bottoms thereof, a fourth pipe leading tangentially into said cylindrical casing adjacent the top thereof, the diameter of said fourth pipe being substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being slighly in excess of three times the diameter of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture into said cyclone separator at about 4 to 6 p.s.i. and at a rate equal to the rate of introduction of total water into said mixing tank, a vortex finder concentrically located within said cylindrical casing of said cyclone separator, said vortex finder having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said first pipe, the internal diameter of said vortex finder being equal to about 1 1/3 the diameter of said first pipe, the upper end of said vortex finder extending upwardly above the top of said cylindrical casing, means providing a seal between the side edge of said vortex finder and the upper end of said cylindrical casing, means for providing vertical adjustment of said vortex finder, a flat plate at the bottom of said cylindrical casing of said cyclone separator, an opening centrally located in said bottom of said casing substantially equal in diameter to the diameter of said vortex finder, a compound conical dish resting on said bottom Of said casing and having a lower opening substantially equal to and mating with the opening in said bottom, said compound conical dish being formed of two conical surfaaces, the first of which extends from adjacent the internal surface of said cylindrical casing to a circular line of intersection intermediate the internal surface of said casing and said opening in said bottom and having a cone angle of generation approximately equal to 68*, said conical dish also having a second conical surface extending from said circular line of intersection to said bottom opening and having a conical angle of generation approximately equal to 53*, a nozzle connected below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with the opening in said bottom, the lower end of said nozzle terminating in an opening having a diameter slightly greater than one-half of the diameter of said first pipe, said nozzle having an internal conical surface extending from the upper opening of said nozzle to the lower opening thereof at a cone angle of generation approximately equal to 7*, the vertical height of said nozzle being slightly in excess of one-half of the diameter of said cylindrical casing, means for treating the effluent solids-water mixture issuing from the top of said vortex finder to remove water therefrom and recover a solid coal product, means for treating the solids-water effluent from the nozzle at the bottom of said cyclone separator for removing water therefrom and refuse, and means for recycling the water from said refuse and said product treating means.

Claim 10

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfth of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening with said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches into the upper end of said cylinder, a cyclone separator having a vertical cylindrical outer casing, a fourth pipe leading tangentially into said cylindrical casing adjacent the top thereof, the diameter of said fourth pipe substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being in excess of three times the diameter Of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture into said cyclone separator, means for discharging a solids-water mixture from the top of said cyclone separator, means for discharging a solids-water mixture from the bottom of said cyclone separator, means for treating the solids-water mixture issuing from the top of said cyclone separator to remove water therefrom and recover a solid coal product, means for treating the solids-water mixture issuing from the bottom of said cyclone separator for removing water therefrom and refuse.

Claim 11

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfth of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening with said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches into the upper end of said cylinder, a cyclone separator having a vertical cylindrical outer casing, a fourth pipe leading tangentially into said cylindrical casing adjacent the top thereof, the diameter of said fourth pipe substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being in excess of three times the diameter Of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture into said cyclone separator, means for discharging a solids-water mixture from the top of said cyclone separator, means for discharging a solids-water mixture from the bottom of said cyclone separator, means for treating the solids-water mixture issuing from the top of said cyclone separator to remove water therefrom and recover a solid coal product, means for treating the solids-water mixture issuing from the bottom of said cyclone separator for removing water therefrom and refuse.

Claim 12

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfty of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening within said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches into the upper end of said cylinder, a cyclone separator having a vertical cylindrical outer casing whose inner diameter is substantially equal to its height, said cylindrical casing being substantially closed at the tops and bottom thereof, a fourth pipe leading tangentially into said cylinder casing adjacent the top thereof, the diameter of said fourth pipe being substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being slightly in excess of three times the diameter of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture from said mixing tank into said cyclone separator, a vortex finder concentrically located within said cylindrical casing of said cyclone separator, said vortex finder having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said first pipe, the internal diameter of said vortex finder being equal to about 1 1/3 of the diameter of said first pipe, the upper end of said vortex finder extending upwardly above the top of said cylindrical casing, means for providing a seal between the side edge of said vortex finder and the upper end of said cylindrical casing, means for providing vertical adjustment of said vortex finder, a Flat plate at the bottom of said cylindrical casing of said cyclone separator, an opening centrally located in said bottom of said casing substantially equal in diameter to the diameter of said vortex finder, a compound conical dish resting on said bottom of said casing and having a lower opening substantially equal to and mating with said opening in said bottom, said compound conical dish being formed of two conical surfaces, the first of which extends from adjacent the internal surface of said cylindrical casing to a circular line of intersection intermediate the internal surface of said casing and said opening in said bottom and having a cone angle of generation approximately equal to 68*, said conical dish also having a second conical surface extending from said circular line of intersection to said bottom opening and having a conical angle of generation approximately equal to 53*, a nozzle connected below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with the opening in said bottom, the lower end of said nozzle terminating in an opening having a diameter slightly greater than one-half of the diameter of said first pipe, said nozzle having an internal conical surface extending from the upper opening of said nozzle to the lower opening thereof at a cone angle of generation approximately equal to 7*, the vertical height of said nozzle being slightly in excess of one-half of the diameter of said cylindrical casing, means for treating the effluent solids-water mixture issuing from the top of said vortex finder to remove water therefrom and recover a solid coal product, means for treating the solids-water effluent from the nozzle at the bottom of said cyclone separator for removing water therefrom and refuse, and means for recycling the water from said refuse and said product treating means.

Claim 13

Apparatus for separating a salable coal product from a solid material containing coal therein comprising a mixing tank closed at the bottom and open at the top, a hollow cylinder suspended in said tank and located substantially centrally therein, said cylinder being open at the top and the bottom, said cylinder having an internal horizontal cross sectional area equal to about one-quarter of the internal horizontal cross sectional area of said tank, a vertical inlet pipe having a diameter of approximately one-sixth of the diameter of said cylinder extending downwardly into said cylinder, the bottom end of said pipe extending below the upper end of said cylinder, a flat conical baffle suspended below the lower open end of said pipe with its conical surface arranged divergingly downwardly, the side of said conical baffle being located below said open end of said pipe approximately one-twelfty of the diameter of said pipe, a second pipe communicating with the lower end of said tank radially with respect to the center of said cylinder, said second pipe having a flow diverter at the end thereof and within said tank, said second pipe being substantially of the same diameter as said first pipe, said flow diverter having an opening within said tank, the height of said opening being about one-quarter of the diameter of said second pipe and the horizontal length of said opening being equal to about three times the diameter of said pipe, a third pipe connected to said tank at the bottom thereof opposite from said second pipe and being of substantially the same diameter as said first and second pipes, a first pump for introducing water into said tank through said first pipe to create a condition of turbulence within said cylinder and within said tank, a second pump for introducing water into said tank through said second pipe under substantially quiescent conditions, means for introducing a quantity of precrushed and pre-screened solid material of particle size 1 1/4 X 0 inches into the upper end of said cylinder, a cyclone separator having a vertical cylindrical outer casing whose inner diameter is substantially equal to its height, said cylindrical casing being substantially closed at the tops and bottom thereof, a fourth pipe leading tangentially into said cylinder casing adjacent the top thereof, the diameter of said fourth pipe being substantially the same as the diameter of said first pipe, the internal diameter of said cylindrical casing being slightly in excess of three times the diameter of said first pipe, a third pump having its inlet connected to said third pipe and its outlet to said fourth pipe for introducing a solids-water mixture from said mixing tank into said cyclone separator, a vortex finder concentrically located within said cylindrical casing of said cyclone separator, said vortex finder having a lower opening located within said cyclone separator at a point spaced from the bottom thereof about equal to the diameter of said first pipe, the internal diameter of said vortex finder being equal to about 1 1/3 of the diameter of said first pipe, the upper end of said vortex finder extending upwardly above the top of said cylindrical casing, means for providing a seal between the side edge of said vortex finder and the upper end of said cylindrical casing, means for providing vertical adjustment of said vortex finder, a Flat plate at the bottom of said cylindrical casing of said cyclone separator, an opening centrally located in said bottom of said casing substantially equal in diameter to the diameter of said vortex finder, a compound conical dish resting on said bottom of said casing and having a lower opening substantially equal to and mating with said opening in said bottom, said compound conical dish being formed of two conical surfaces, the first of which extends from adjacent the internal surface of said cylindrical casing to a circular line of intersection intermediate the internal surface of said casing and said opening in said bottom and having a cone angle of generation approximately equal to 68*, said conical dish also having a second conical surface extending from said circular line of intersection to said bottom opening and having a conical angle of generation approximately equal to 53*, a nozzle connected below said bottom of said cyclone separator and having an upper opening of substantially the same size and mating with the opening in said bottom, the lower end of said nozzle terminating in an opening having a diameter slightly greater than one-half of the diameter of said first pipe, said nozzle having an internal conical surface extending from the upper opening of said nozzle to the lower opening thereof at a cone angle of generation approximately equal to 7*, the vertical height of said nozzle being slightly in excess of one-half of the diameter of said cylindrical casing, means for treating the effluent solids-water mixture issuing from the top of said vortex finder to remove water therefrom and recover a solid coal product, means for treating the solids-water effluent from the nozzle at the bottom of said cyclone separator for removing water therefrom and refuse, and means for recycling the water from said refuse and said product treating means.