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Patent CA1172671A successfully refreshed from Google Patents.
CA1172671A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Slurry transport apparatus and method
Assignee: Joy Manufacturing Co
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Filing: 1982-01-29
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Granted: 1984-08-14
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Expires: 2002-01-29
Abstract
Abstract ABSTRACT OF THE DISCLOSURE Apparatus and method for transporting a slurry including a first conduit having an inlet for introducing slurry and apparatus for transporting the same through the first conduit. A first air supply provides air at a relatively high pressure for disaggregating the slurry and a second air supply provides air at a relatively low pressure and high volume for propelling the slurry through a second conduit. An auger having a central bore may be used both as a transport apparatus and as a means for conducting the high pressure air for impingement upon the slurry.
Inventors
- 👤 John H. Archibald
- 👤 Derek L Macartney
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-11-08 20:15
CPC Classifications
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Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
117 words
Apparatus for transporting a slurry comprising first conduit means, inlet means for introducing said slurry into said first conduit means, transport means operatively associated with said first conduit means for transporting said slurry therethrough, first air supply means for supplying air at a first pressure to said slurry, second conduit means in communication with said first conduit means for receiving said slurry therefrom, second air supply means in communication with said second conduit means for delivering to said second conduit means air at a second pressure lower than said first pressure, and said second air supply means having means for supplying air in greater volume than the volume of air supplied by said first air supply means.
Claim 2
Dependent Claim
117 words
Apparatus for transporting a slurry comprising first conduit means, inlet means for introducing said slurry into said first conduit means, transport means operatively associated with said first conduit means for transporting said slurry therethrough, first air supply means for supplying air at a first pressure to said slurry, second conduit means in communication with said first conduit means for receiving said slurry therefrom, second air supply means in communication with said second conduit means for delivering to said second conduit means air at a second pressure lower than said first pressure, and said second air supply means having means for supplying air in greater volume than the volume of air supplied by said first air supply means.
Claim 3
Dependent Claim
29 words
The apparatus for transporting a slurry of claim 1 including said transport means including auger means disposed within said first conduit means, and power means for rotating said auger.
Claim 4
Dependent Claim
30 words
The apparatus for transporting a slurry of claim 2 including said auger means having a hollow shaft provided with a generally conical sector at or adjacent the discharge end thereof.
Claim 5
Independent Claim
18 words
The apparatus for transporting a slurry of claim including said auger means having a vane of varying pitch.
Claim 6
Dependent Claim
29 words
The apparatus for transporting a slurry of claim 4 including the pitch of said auger vane being closer toward the downstream end thereof than toward the upstream end thereof.
Claim 7
Dependent Claim
26 words
The apparatus for transporting a slurry of claim 1 including said first air supply means being in communication with the interior of said first conduit means.
Claim 8
Dependent Claim
37 words
The apparatus for transporting a slurry of claim 3 including said first air supply means having a portion passing axially through said hollow shaft of said auger means and discharge outlets disposed within said generally conical sector.
Claim 9
Dependent Claim
32 words
The apparatus for transporting a slurry of claim 4 including said first conduit means having at least one generally outwardly projecting recirculating tube disposed adjacent an outer portion of said auger vane.
Claim 10
Dependent Claim
18 words
The apparatus for transporting a slurry of claim 8 including a-plurality of circumferentially spaced said recirculating tubes. -11-
Claim 11
Dependent Claim
35 words
The apparatus for transporting a slurry of claim 9 including said recirculating tubes having a height equal to about 5 to 10 percent of the diameter of said first conduit means adjacent to said tubes.
Claim 12
Dependent Claim
53 words
The apparatus for transporting a slurry of claim 1 including said second conduit means having at least two air inlet conduits connected to said second air supply means, and said air inlet conduits being disposed on opposite sides of the slurry delivery connection between said first conduit means and said second conduit means.
Claim 13
Dependent Claim
17 words
The apparatus for transporting a slurry of claim 11 including said second conduit means being generally Y-shaped.
Claim 14
Dependent Claim
27 words
The apparatus for transporting a slurry of claim 3 including said second conduit means having a slurry discharge outlet tube axially generally aligned with the auger shaft.
Claim 15
Dependent Claim
42 words
The apparatus for transporting a slurry of claim 13 including third conduit means for receiving slurry from said second conduit means discharge outlet, and said third conduit means including a plurality of tubular sections which diverge in a generally downstream direction. 12
Claim 16
Dependent Claim
29 words
The apparatus for transporting a slurry of claim 1 including said first air supply means having means for supplying air at a pressure of about 35 to 115 psi.
Claim 17
Dependent Claim
38 words
The apparatus for transporting a slurry of claim 15 including said second air supply means having means for supplying air at a pressure of about 10 to 15 psi at a rate of about 500 to 1500 cfm.
Claim 18
Dependent Claim
47 words
The apparatus for transporting a slurry of claim 3 including said first conduit means having a conical portion disposed in spaced surrounding relationship with respect to said auger shaft conical section, and a tubular slurry discharge section interposed between said conical portion and said second conduit means.
Claim 19
Dependent Claim
20 words
The apparatus for transporting a slurry of claim 1 including said first supply means including means for disaggregating said slurry.
Claim 20
Dependent Claim
49 words
19 A method of transporting a slurry comprising moving said slurry through first conduit means, subjecting said slurry to disaggregating air at a first pressure, subjecting said slurry to propulsion air at a second pressure, and maintaining said second pressure at a lower level than said first pressure. 13
Claim 21
Dependent Claim
49 words
19 A method of transporting a slurry comprising moving said slurry through first conduit means, subjecting said slurry to disaggregating air at a first pressure, subjecting said slurry to propulsion air at a second pressure, and maintaining said second pressure at a lower level than said first pressure. 13
Claim 22
Dependent Claim
19 words
The apparatus for transporting a slurry of claim 19 including employing said method in transporting an aqueous mineral slurry.
Claim 23
Dependent Claim
28 words
The method of transporting a slurry of claim 20 comprising subjecting said slurry to said second air pressure after said slurry is subjected to said first air pressure.
Claim 24
Dependent Claim
22 words
The apparatus for transporting a slurry of claim 21 including employing conveyor means in moving said slurry through said first conduit means.
Claim 25
Dependent Claim
20 words
The method for transporting a slurry of claim 22 including introducing said first pressurized air within said first conduit means.
Claim 26
Dependent Claim
34 words
The method of transporting a slurry of claim 23 including delivering said slurry passing through said first conduit means to second conduit means, and introducing said second pressurized air into said second conduit means.
Claim 27
Dependent Claim
30 words
The method of transporting a slurry of claim 24 including delivering said second pressurized air at a greater volumetric rate than the volumetric rate of said first pressurized air. 14
Claim 28
Dependent Claim
56 words
The method of transporting a slurry of claim 22 including providing said auger means with a shaft having a longitudinal bore and a generally conical free end, introducing said first pressurized air through said bore, and discharging said first pressurized air into said first conduit means through openings in said conical free end of said shaft.
References Cited (Backward Citations)
No citation records indexed.
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