Methods of removing contaminants from heated gases

Claim 1

A method for removing contaminants that are particulate solids from heated gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as to cause the contaminants associated with said gases to impact as particles against to said collection surface, said gases being sufficiently hot to soften said particles to the extent that they will adhere to said collection surface as they impact against that surface; effecting a flow of the gases from which the contaminants have removed out of said contaminants removal zone; displacing that portion of said collection surface to which contaminants are adhered to a location out of said collection zone; and there removing the contaminants adhering thereto from said surface.

Claim 2

A method for removing contaminants that are particulate solids from heated gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as to cause the contaminants associated with said gases to impact as particles against to said collection surface, said gases being sufficiently hot to soften said particles to the extent that they will adhere to said collection surface as they impact against that surface; effecting a flow of the gases from which the contaminants have removed out of said contaminants removal zone; displacing that portion of said collection surface to which contaminants are adhered to a location out of said collection zone; and there removing the contaminants adhering thereto from said surface.

Claim 3

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; effecting a flow of hot gases containing particulate contaminants as aforesaid into said zone and then through a turn that the particulate contaminants associated with said hot gases cannot make, whereby the particulate contaminants will impact against said collection surface, said gases being sufficiently hot to soften said particulate comtaminants to the extend that they will adhere to said collection surface as they impact against that surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; effecting movement of said collection surface and the particulate contaminants adhered thereto out of said contaminants removal zone; and thereafter dislodging adhered particles from said collection surface.

Claim 4

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; effecting a flow of hot gases containing particulate contaminants as aforesaid into said zone and then through a turn that the particulate contaminants associated with said hot gases cannot make, whereby the particulate contaminants will impact against said collection surface, said gases being sufficiently hot to soften said particulate comtaminants to the extend that they will adhere to said collection surface as they impact against that surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; effecting movement of said collection surface and the particulate contaminants adhered thereto out of said contaminants removal zone; and thereafter dislodging adhered particles from said collection surface.

Claim 5

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surfacw into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperature of 760° F. or higher, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants.

Claim 6

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surfacw into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperature of 760° F. or higher, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants.

Claim 13

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a glass having a viscosity of 10 3 to 10 4 poises at a temperature in the range of 1400°-1700° F.

Claim 14

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a glass having a viscosity of 10 3 to 10 4 poises at a temperature in the range of 1400°-1700° F.

Claim 18

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; effecting a flow of gases containing particulate contaminants as aforesaid through said zone that will result in particulate contaminants associated with said gases impacting against said collection surfaces; effecting a flow of the gases from which the particulate contaminantes have been removed out of the contaminants removal zone; and promoting the adherence of the particulate contaminants to said collection surface by adding to the hot gases being cleaned a material that possesses adhesive qualities at temperatures approximating those prevailing in the vicinity of said collection surface.

Claim 19

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; effecting a flow of gases containing particulate contaminants as aforesaid through said zone that will result in particulate contaminants associated with said gases impacting against said collection surfaces; effecting a flow of the gases from which the particulate contaminantes have been removed out of the contaminants removal zone; and promoting the adherence of the particulate contaminants to said collection surface by adding to the hot gases being cleaned a material that possesses adhesive qualities at temperatures approximating those prevailing in the vicinity of said collection surface.

Claim 21

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a glass porcelain enamel having a glass former to cation ratio in the range of 1.5 to 3.

Claim 22

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the contaminants have been removed out of said contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a glass porcelain enamel having a glass former to cation ratio in the range of 1.5 to 3.

Claim 23

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material having at least two glassy components.

Claim 24

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material having at least two glassy components.

Claim 25

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminatd with the particulate contaminants and said material comprising a porous or gassy glass.

Claim 26

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable collection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminatd with the particulate contaminants and said material comprising a porous or gassy glass.

Claim 27

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable coolection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a mixture of a soda lime silica glass and a vitreous enamel frit.

Claim 28

A method of removing particulate contaminants from hot gases which comprises the steps of: providing a contaminants removal zone; effecting the movement of an impactable coolection surface into, through, and out of said removal zone; so effecting a flow of gases containing particulate contaminants as aforesaid through said zone as will result in the particulate contaminants associated with said gases impacting against said collection surface; effecting a flow of the gases from which the particulate contaminants have been removed out of the contaminants removal zone; and promoting the adherence of said particulate contaminants to said collection surface by coating said surface with a material that exhibits adhesive properties at temperatures approximating those prevailing in the vicinity of said collection surface, said material being applied to said surface prior to the impacting thereon of the gases contaminated with the particulate contaminants and said material being a mixture of a soda lime silica glass and a vitreous enamel frit.