Patent US3667133A successfully refreshed from Google Patents.
US3667133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for cooling cement clinker
Assignee: Fuller Co
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Filing: 1970-04-09
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Granted: 1972-06-06
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Expires: 1990-04-09
Abstract
Abstract A method and apparatus for cooling cement clinker which includes a conventional clinker cooler wherein clinker to be cooled is supported on a grate and moved from a kiln through the cooler and cooling air is blown through and around the clinker. The air is heated and entrains solids from the hot clinker. Some of the hot air is returned to the kiln and the rest of it is directed to a dust collector and then to an air cooler. From the air cooler, the air is recirculated to be blown through a new supply of hot clinker. The cooler is a tank having a plurality of gas tubes therethrough with water filling the tank and surrounding the tubes. The disclosure also sets forth that hot air may leave the clinker cooler, go directly to the air cooler and then to a conventional bag filter where clean air is exhausted to atmosphere. In this instance, ambient air is blown through the hot clinker.
Inventors
- 👤 Roland L Lincoln
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:45
CPC Classifications
F; F27; F27D; F27D15/00; F27D15/02; F27D15/0206; F27D15/0213; F27D17/00; F27D17/20; F27D17/22; F27D17/25; F27D9/00; F27D2009/007; F27D2009/0072; F27D2009/0078; F27D2009/0081; F27D2009/0083; F27D15/022; F27D2015/0233
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
182 words
Apparatus for cooling cement clinker comprising: a housing defining a chamber; inlet means at one end of said housing for receiving cement clinker from a kiln and admitting it into said chamber; outlet means at the other end of said housing for discharging cooleD cement clinker from said chamber; grate means for supporting said clinker within said chamber; blower means for blowing cooling gas into said chamber and through said cement clinker for cooling said cement clinker whereby said gas is heated by said clinker and solid material is entrained in said gas; an outlet conduit means for conducting at least some of the heated gas to a kiln; a gas cooler; first conduit means for conducting at least some of said heated gas from said chamber to said gas cooler; second conduit means for conducting cooled gas from said gas cooler to said blower means; dust collector means flow connected to one of said first and second conduit means for removing solid materials from said gas; and second blower means for blowing ambient air into said chamber adjacent said outlet means.
Claim 2
Dependent Claim
182 words
Apparatus for cooling cement clinker comprising: a housing defining a chamber; inlet means at one end of said housing for receiving cement clinker from a kiln and admitting it into said chamber; outlet means at the other end of said housing for discharging cooleD cement clinker from said chamber; grate means for supporting said clinker within said chamber; blower means for blowing cooling gas into said chamber and through said cement clinker for cooling said cement clinker whereby said gas is heated by said clinker and solid material is entrained in said gas; an outlet conduit means for conducting at least some of the heated gas to a kiln; a gas cooler; first conduit means for conducting at least some of said heated gas from said chamber to said gas cooler; second conduit means for conducting cooled gas from said gas cooler to said blower means; dust collector means flow connected to one of said first and second conduit means for removing solid materials from said gas; and second blower means for blowing ambient air into said chamber adjacent said outlet means.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said gas cooler is an indirect heat exchanger.
Claim 4
Dependent Claim
45 words
The apparatus of claim 2 wherein said indirect heat exchanger includes tank means having a plurality of gas conducting tubes extending therethrough which are flow connected to said first and second conduit means and cooling fluid fills said tank and surrounds said gas conducting tubes.
Claim 5
Dependent Claim
32 words
The apparatus of claim 3 wherein said cooling fluid is water and said tank means includes means responsive to the level of water in said tank for conducting water into said tank.
Claim 6
Dependent Claim
17 words
The apparatus of claim 1 wherein said dust collector means is flow connected to first conduit means.
Claim 7
Dependent Claim
28 words
The apparatus of claim 5 further comprising third blower means mounted in said second conduit for moving cooled air from said air cooler to said first blower means.
Claim 8
Dependent Claim
25 words
The apparatus of claim 5 wherein said first and second blower means are volumetric controlled for maintaining the air volume in said chamber substantially constant.
Claim 9
Dependent Claim
19 words
The apparatus of claim 1 further comprising means for blowing ambient air into said chamber adjacent said inlet means.
Claim 10
Independent Claim
145 words
A method of cooling hot coarse material such as cement clinker comprising the steps of: supporting a supply of hot material on a porous grate; blowing cooling air upwardly through the porous grate and hot material by means of a first blower means whereby the hot material is cooled, the cooling air is heated and solid material is entrained in the air; removing at least some of the solid material from the air which passes through the hot material; cooling the heated air by means of an indirect heat exchanger; returning the cooled air to the first blower means and blowing it through a new supply of hot material to be cooled; and blowing ambient air through a supply of hot material by means of a second blower means before cooling air is blown through the supply of hot material by the first blower means.
Claim 11
Independent Claim
145 words
A method of cooling hot coarse material such as cement clinker comprising the steps of: supporting a supply of hot material on a porous grate; blowing cooling air upwardly through the porous grate and hot material by means of a first blower means whereby the hot material is cooled, the cooling air is heated and solid material is entrained in the air; removing at least some of the solid material from the air which passes through the hot material; cooling the heated air by means of an indirect heat exchanger; returning the cooled air to the first blower means and blowing it through a new supply of hot material to be cooled; and blowing ambient air through a supply of hot material by means of a second blower means before cooling air is blown through the supply of hot material by the first blower means.
Claim 12
Dependent Claim
49 words
A method of cooling hot coarse material as defined by claim 9 further comprising the step of blowing ambient air through a supply of hot material by means of a third blower means after cooling air is blown through the supply of hot material by the first blower means.
Claim 13
Dependent Claim
191 words
Apparatus for cooling hot coarse material such as cement clinker comprising: a housing defining a chamber; inlet means at one end of said housing for receiving hot material from a furnace and admitting it into said chamber; outlet means at the other end of said housing for discharging cooled material from said chamber; grate means for supporting said material within said chamber; blower means for blowing cooling gas into said chamber and through said material for cooling said material whereby said gas is heated by said hot material and solid material is entrained in said gas; an outlet conduit means for conducting at least some of the heated gas to a furnace; a gas cooler; first conduit means for conducting at least some of said heated gas from said chamber to said gas cooler; second conduit means for conducting cooled gas from said gas cooler to said bloWer means; dust collector means flow connected to one of said first and second conduit means for removing at least some of the solid materials from said gas; and second blower means for blowing ambient cooling gas into said chamber adjacent said inlet means.
Claim 14
Dependent Claim
191 words
Apparatus for cooling hot coarse material such as cement clinker comprising: a housing defining a chamber; inlet means at one end of said housing for receiving hot material from a furnace and admitting it into said chamber; outlet means at the other end of said housing for discharging cooled material from said chamber; grate means for supporting said material within said chamber; blower means for blowing cooling gas into said chamber and through said material for cooling said material whereby said gas is heated by said hot material and solid material is entrained in said gas; an outlet conduit means for conducting at least some of the heated gas to a furnace; a gas cooler; first conduit means for conducting at least some of said heated gas from said chamber to said gas cooler; second conduit means for conducting cooled gas from said gas cooler to said bloWer means; dust collector means flow connected to one of said first and second conduit means for removing at least some of the solid materials from said gas; and second blower means for blowing ambient cooling gas into said chamber adjacent said inlet means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |