Patent US3738796A successfully refreshed from Google Patents.
US3738796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for dehydrating wet particulate matter and for disposing of waste products therefrom
Assignee: Individual
•
Filing: 1971-09-15
•
Granted: 1973-06-12
•
Expires: 1991-09-15
Abstract
Abstract Apparatus and method for two-stage dehydration of wet particulate matter (such as green forage chops) and disposition of waste products produced during the second stage of dehydration, such as gases, smoke and charred particles, comprise: a first furnace for firing a first dryer in which the chops are partially dried; a first dryer fan for drawing the chops through the first dryer and for disposing of hot moist air; a second furnace for firing a second dryer in which the chops are finally dried and wherein the waste products are produced, the second dryer having a smaller air-handling capacity than the first dryer; transfer means for delivering the partially-dried chops from the first dryer to the second dryer and including either a first cyclone separator connected to the first dryer fan or a material discharge hood disposed between the first dryer and the first dryer fan and a conveyor connected to the discharge hood; a second dryer fan for drawing the chops through the second dryer; a second cyclone separator connected to the second dryer fan for separating the finally-dried chops from the aforesaid waste products; and means, including a conduit and booster fan, for delivering the aforesaid waste products from the second cyclone separator to the first furnace wherein they are consumed.
Inventors
- 👤 W Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:10
CPC Classifications
F; F26; F26B; F26B17/00; F26B17/10; F26B17/106
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
175 words
Apparatus for drying wet particulate matter and for disposing of waste products produced during drying comprising: a first dryer for partially dryer said matter, means for moving said matter through said first dryer, a second dryer for finally drying partially-dried matter received from said first dryer, said second dryer producing combustible waste products during the final drying of said matter as a result of processing of said matter therein, means for moving said matter through said second dryer, said first and second dryers being enclosed type dryers and wherein said second dryer is of smaller air handling capacity than said first dryer, said second dryer having an air handling capacity in the range of about one-third to one-half of said first dryer, transfer means for transferring said partially-dried matter from said first dryer to said second dryer, furnace means for supplying heat to said first and second dryers, separating means for separating said finally dried matter from said waste products, and means for delivering said waste products to said furnace means wherein they are consumed.
Claim 2
Dependent Claim
175 words
Apparatus for drying wet particulate matter and for disposing of waste products produced during drying comprising: a first dryer for partially dryer said matter, means for moving said matter through said first dryer, a second dryer for finally drying partially-dried matter received from said first dryer, said second dryer producing combustible waste products during the final drying of said matter as a result of processing of said matter therein, means for moving said matter through said second dryer, said first and second dryers being enclosed type dryers and wherein said second dryer is of smaller air handling capacity than said first dryer, said second dryer having an air handling capacity in the range of about one-third to one-half of said first dryer, transfer means for transferring said partially-dried matter from said first dryer to said second dryer, furnace means for supplying heat to said first and second dryers, separating means for separating said finally dried matter from said waste products, and means for delivering said waste products to said furnace means wherein they are consumed.
Claim 3
Dependent Claim
33 words
Apparatus according to claim 1 wherein said furnace means maintains air inlet temperatures within said first and second dryers of about 1,000* to 2,000* F. and of about 500* to 1,000* F., respectively.
Claim 4
Dependent Claim
220 words
Apparatus for drying wet particulate matter and for disposing of waste products produced during drying comprising: a first dryer for partially drying said matter, first means for moving said matter through said first dryer, a first dryer fan for disposing of moisture released in said first dryer, a second dryer for finally drying partially-dried matter received from said first dryer, said second dryer producing combustible waste products during the final drying of said matter, second means for moving said matter through said second dryer, said first and second dryers being enclosed-type dryers and wherein said second dryer is of smaller air-handling capacity than said first dryer, said second dryer having an air-handling capacity in the range of about one-third to one-half of said first dryer, transfer means for transferring said partially-dried matter from said first dryer to said second dryer, furnace means for supplying heat to said first and second dryers, said furnace means maintaining inlet air temperatures in said first and second dryers of about 1,000* to 2,000* F. and of about 500* to 1,000* F., respectively, separating means for separating said finally-dried matter from said waste products and for delivering the latter to said furnace means wherein they are consumed, and a second dryer fan for delivering said waste products from said second dryer to said separating means.
Claim 5
Dependent Claim
220 words
Apparatus for drying wet particulate matter and for disposing of waste products produced during drying comprising: a first dryer for partially drying said matter, first means for moving said matter through said first dryer, a first dryer fan for disposing of moisture released in said first dryer, a second dryer for finally drying partially-dried matter received from said first dryer, said second dryer producing combustible waste products during the final drying of said matter, second means for moving said matter through said second dryer, said first and second dryers being enclosed-type dryers and wherein said second dryer is of smaller air-handling capacity than said first dryer, said second dryer having an air-handling capacity in the range of about one-third to one-half of said first dryer, transfer means for transferring said partially-dried matter from said first dryer to said second dryer, furnace means for supplying heat to said first and second dryers, said furnace means maintaining inlet air temperatures in said first and second dryers of about 1,000* to 2,000* F. and of about 500* to 1,000* F., respectively, separating means for separating said finally-dried matter from said waste products and for delivering the latter to said furnace means wherein they are consumed, and a second dryer fan for delivering said waste products from said second dryer to said separating means.
Claim 6
Dependent Claim
21 words
Apparatus according to claim 3 wherein said furnace means comprises first and second furnaces for said first and second dryers, respectively.
Claim 7
Dependent Claim
44 words
Apparatus according to claim 3 wherein said separating means includes a cyclone separator connected to receive said finally-dried matter and said waste products from said second dryer and a conduit connected to said cyclone separator for delivering said waste products to said furnace means.
Claim 8
Dependent Claim
22 words
Apparatus according to claim 5 wherein said first means for moving said matter through said first dryer comprises said first dryer fan.
Claim 9
Dependent Claim
24 words
Apparatus according to claim 6 wherein said transfer means comprises a second cyclone separator connected between said first dryer fan and said second dryer.
Claim 10
Dependent Claim
37 words
Apparatus according to claim 6 wherein said transfer means comprises a discharge hood connected between said first dryer and said first dryer fan and further comprises conveyor means connected between said discharge hood and said second dryer.
Claim 11
Dependent Claim
24 words
Apparatus according to claim 8 including a cyclone separator for receiving fines and some matter from the discharge outlet of said first dryer fan.
Claim 12
Dependent Claim
22 words
Apparatus according to claim 6 wherein said second means for moving said matter through said second dryer comprises said second dryer fan.
Claim 13
Independent Claim
210 words
A method of drying wet particulate matter and of disposing of waste products produced during drying comprising the steps of: providing a source of heat by burning combustible fuel in a furnace means, partially drying said matter in a first dryer heated by said furnace means by maintaining inlet air temperatures in said first dryer in the range from about 1,000* to 2,000* F. so as to extract from about 80 percent to 90 percent of the moisture to be removed from said matter, removing moisture from said first dryer and discharging it to atmosphere, removing the partially-dried matter from the first dryer and transporting it to a second dryer which is heated by said furnace means and has a smaller air-handling capacity than said first dryer, finally drying said partially-dried matter in said second dryer by maintaining inlet air temperatures in said second dryer in the range from about 500* to 1,000* F. so as to extract all but about 2 per cent to 15 per cent of the remaining moisture from said matter and producing combustible waste products in so doing, removing the finally-dried matter and waste products from said second dryer and separating them, and conducting the waste products to said furnace means wherein they are consumed.
Claim 14
Independent Claim
210 words
A method of drying wet particulate matter and of disposing of waste products produced during drying comprising the steps of: providing a source of heat by burning combustible fuel in a furnace means, partially drying said matter in a first dryer heated by said furnace means by maintaining inlet air temperatures in said first dryer in the range from about 1,000* to 2,000* F. so as to extract from about 80 percent to 90 percent of the moisture to be removed from said matter, removing moisture from said first dryer and discharging it to atmosphere, removing the partially-dried matter from the first dryer and transporting it to a second dryer which is heated by said furnace means and has a smaller air-handling capacity than said first dryer, finally drying said partially-dried matter in said second dryer by maintaining inlet air temperatures in said second dryer in the range from about 500* to 1,000* F. so as to extract all but about 2 per cent to 15 per cent of the remaining moisture from said matter and producing combustible waste products in so doing, removing the finally-dried matter and waste products from said second dryer and separating them, and conducting the waste products to said furnace means wherein they are consumed.
Claim 15
Dependent Claim
17 words
A method according to claim 11 including the step of adding makeup air to said furnace means.
Claim 16
Dependent Claim
36 words
A method according to claim 12 including the step of tempering the heated air suppliEd to said second dryer with ambient air so as to maintain air temperature in said second dryer in the said range.
Claim 17
Dependent Claim
33 words
A method according to claim 11 including the step of transporting the partially-dried matter from said first dryer to said second dryer to allow for equalization of the moisture in the partially-dried matter.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |