US3584800A - Waste pulping machine with shear members - Google Patents
Waste pulping machine with shear members Download PDFInfo
- Publication number
- US3584800A US3584800A US800999A US3584800DA US3584800A US 3584800 A US3584800 A US 3584800A US 800999 A US800999 A US 800999A US 3584800D A US3584800D A US 3584800DA US 3584800 A US3584800 A US 3584800A
- Authority
- US
- United States
- Prior art keywords
- impeller
- waste
- shear
- pulping machine
- blades
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0084—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage
- B02C18/0092—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating garbage, waste or sewage for waste water or for garbage
Definitions
- FIG. I is a partially sectional elevational view of a waste pulping machine utilizing the present invention.
- FIG. 2 is a partially sectional view taken along the line 2-2 in the direction of the arrows in FIG. 1 showing the impeller tank;
- FIG. 3 is a segmentary perspective view of stationary and moving shearing blades respectively;
- FIG. 4 is a segmentary view in elevation of the blades shown in FIG. 3;
- FIG. 5 is a diagrammatic view illustrating the angular relationship ofstationary and movable blades.
- FIGS. cylindrical shell and circular base 11 form the pulping tank.
- Annular perforated ring 12 separates pulping chamber 13 and slurry chamber 14.
- the ring closely surrounds impeller 15 which is driven in rotary motion by motor 16 with shaft 17 keyed to the impeller with key 18 and protected from leakage by mechanical seal I9.
- the numeral 10 designates an annular portion of the tank which extends radially inwardly from the wall and which is stationary. The bottom portion terminates in a circular edge which is adjacent the impeller and the ring is between the edge of the bottom portion and the impeller.
- Baffles 20 are included to divert material moving around the periphery of the chamber over the impeller area.
- the impeller is provided with a plurality of cutting teeth 21 on its upper surface and a pluralitytwo being shown in this embodiment of the inventionof upwardly projecting cutting teeth or shear teeth 22.
- the ring I2 is provided with an outwardly directed flange 23 projecting from its upper edge and a plurality of stationary teeth or stationary shearing members 24 are provided projecting upwardly from flange 23. Three such stationary shear teeth 24 are provided in this embodiment.
- Waste and water are introduced into the pulping chamber where the waste is pulped through the action of the impeller until reduced to a size where the solids can pass through the openings 25 in the ring 12 into the slurry chamber, and out the discharge port 26 and into a pump which is not shown for transport to an extractor which is also not shown where the excess water is removed and returned to the pulper.
- Valve 27 is included for purposes of draining down the machine completely when desired.
- shear members 22 and 24 are two parts of a set, the one 22 rotating with the impeller, and the other 24 fixed to the tank. As the impeller rotates, the blade 22 passes across blade 24. The shape of these parts is such as to very closely approximate the action of a pair of hand scissors as the blades pass one another.
- the baffle 20 is so positioned as to guide the materials being cut between the shears creating a positive continuous flow of material across the shear faces.
- the location of the stationary blade 24 in relation to the baffle 20 is not highly critical. This is indicated in FIG. 3 by the letter A.
- the blade or shear member 24 must be positioned so that the flow of water and solids is deflected just in front of the stationary blade 24 allowing the cutter ear 22 to cut at the solids.
- the included angle of the leading edge of cutting member 22 and the facing vertical edge of cutting member 24 is 35' to 55, as indicated by the letter B.
- This enables the stationary blade to hold material so that the cutter blade 22 can get to it in a scissor action.
- the cutter blade 22 is sloped for two reasons. One of the reasons is to' deflect material that cannot be cut out of the blades, such as pipe, bar, etc. The second reason is to keep stringy material from hanging on the moving ear 22 while it is rotating and thereby unbalancing the impeller.
- the stationary blade is relieved at an angle C to avoid wedging which takes place when cutting soft materials. It is useful to affix the stationary blade 24 by bracketing to the flange 23 to allow adjustability in relation to the cutting member 22 so that a specific clearance can be maintained as wear takes place.
- a waste disposal unit comprising a cylindrical tank for receiving waste material and water, a wall of said tank, a bottom portion of said tank extending radially inwardly from said wall, a disc impeller in said tank circumferentially spaced from said wall and supported for rotary motion, said bottom portion terminating in a circular edge adjacent said impeller, an upper surface of said impeller, material disintegrating teeth on said upper surface, a sieve in the form of a tubular member supported in said tank between said bottom portion and said impeller and radially encircling said impeller, said sieve being formed with a plurality of through apertures, a first shear member projecting upwardly from said uppersurface, a second shear member supported stationary relative to said first shear member and in spaced relation therewith, said first and second shear members extending above said sieve, means for rotating said impeller, first and second edges of said first and second shear members respectively, said first shear edge moving in the direction of said second shear edge upon rotation of said impeller, and a baffle member supported
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Paper (AREA)
Abstract
A waste-pulping machine of the type utilizing a rotating impeller in which the impeller is provided with one or more blades which can cooperate with one or more stationary blades to provide a shearing action.
Description
United States Patent Inventors Victor D. Dodd Honey Brook; Harry Lyn Kemper, Narvon, both of, Pa. Appl. No. 800,999 Filed Feb. 20, 1969 Patented June 15, 1971 Assignee Sornat Corporation Pomeroy, Pa.
WASTE PULPING MACHINE WITH SHEAR MEMBERS 2 Claims, 5 Drawing Figs.
US. Cl 24l/46.06, 241/74 Int. Cl B02c 18/12,
1302c 18/18,B02c 18/40 Primary Examiner- Donald G. Kelly Atlomeyl(ane, Dalsimer, Kane Sullivan & Kurucz ABSTRACT: A waste-pulping machine of the type utilizing a rotating impeller in which the impeller is provided with one or more blades which can cooperate with one or more stationary blades to provide a shearing action.
PATENTED JUN 1 5 l97| SHEET 2 0F 3 INVENTORS W6 702 D. 000D BY M ZY/V KAE/VPEE ATTORNEYS PATENTED JUN] 5:971 $5 4 00 sum 3 OF 3 4, W WWW ATTORNEYS WASTE PULPING MACHINE WITII SHEAR MEMBERS BACKGROUND OF THE INVENTION The application of wet pulping equipment for waste disposal is finding increasing acceptance. In equipment of this type waste materials are introduced into an impeller created vortex of water, reduced to a pulp, passed on to a water extraction device where the excess of water is separated and returned to the pulper for reuse. Conventional waste-pulping machines have been designed on the premise that nearly all waste material is of a fibrous and therefore pulpable nature, and are used mainly for food and paper waste. In recent years, a number of advances have been incorporated which have increased the ability of machines of this type to handle the increasing amounts of nonpulpable materials, and in particular, plastics. These include the use of slotted rings surrounding the pulping impeller, wiping ears mounted to the impeller, pumping vanes on the outside of the perforated ring, and retarder blades mounted above the impeller's periphery. The ability to handle plastic material has thus increased so as to permit up to about 10 percent by weight of this material to pass through and thus reduce sorting out of the waste materials.
However, the amount of plastic material in waste has increased still further and very frequently goes beyond 10 percent. Further, this material is tougher. The use of slotted rings has limitations when pumping the less reduced pulp through a pipe line to a remotely located water extractor. Other materials, commonly in waste, such as wire coathangers, are still problem items, usually requiring manual sorting before going into the machine.
SUMMARY OF THE INVENTION A waste-pulping machine of the type in which waste materials are introduced into an impeller created vortex of water and reduced to a pulp wherein the impeller is provided with one or more blades constructed and arranged to cooperate with one or more stationary blades to provide a shearing action.
DESCRIPTION OF THE DRAWINGS In the accompanying drawings:
FIG. I is a partially sectional elevational view of a waste pulping machine utilizing the present invention;
FIG. 2 is a partially sectional view taken along the line 2-2 in the direction of the arrows in FIG. 1 showing the impeller tank;
FIG. 3 is a segmentary perspective view of stationary and moving shearing blades respectively;
FIG. 4 is a segmentary view in elevation of the blades shown in FIG. 3; and
FIG. 5 is a diagrammatic view illustrating the angular relationship ofstationary and movable blades.
PREFERRED EMBODIMENT Referring to the FIGS. cylindrical shell and circular base 11 form the pulping tank. Annular perforated ring 12 separates pulping chamber 13 and slurry chamber 14. The ring closely surrounds impeller 15 which is driven in rotary motion by motor 16 with shaft 17 keyed to the impeller with key 18 and protected from leakage by mechanical seal I9. The numeral 10 designates an annular portion of the tank which extends radially inwardly from the wall and which is stationary. The bottom portion terminates in a circular edge which is adjacent the impeller and the ring is between the edge of the bottom portion and the impeller.
Waste and water are introduced into the pulping chamber where the waste is pulped through the action of the impeller until reduced to a size where the solids can pass through the openings 25 in the ring 12 into the slurry chamber, and out the discharge port 26 and into a pump which is not shown for transport to an extractor which is also not shown where the excess water is removed and returned to the pulper. Valve 27 is included for purposes of draining down the machine completely when desired.
As seen in FIG. 3, shear members 22 and 24 are two parts of a set, the one 22 rotating with the impeller, and the other 24 fixed to the tank. As the impeller rotates, the blade 22 passes across blade 24. The shape of these parts is such as to very closely approximate the action of a pair of hand scissors as the blades pass one another. The baffle 20 is so positioned as to guide the materials being cut between the shears creating a positive continuous flow of material across the shear faces. The location of the stationary blade 24 in relation to the baffle 20 is not highly critical. This is indicated in FIG. 3 by the letter A. However, the blade or shear member 24 must be positioned so that the flow of water and solids is deflected just in front of the stationary blade 24 allowing the cutter ear 22 to cut at the solids. In a typical example,'the included angle of the leading edge of cutting member 22 and the facing vertical edge of cutting member 24 is 35' to 55, as indicated by the letter B. This enables the stationary blade to hold material so that the cutter blade 22 can get to it in a scissor action. The cutter blade 22 is sloped for two reasons. One of the reasons is to' deflect material that cannot be cut out of the blades, such as pipe, bar, etc. The second reason is to keep stringy material from hanging on the moving ear 22 while it is rotating and thereby unbalancing the impeller. This aids in cutting since the surface is always clean. As noted in FIG. 5, the stationary blade is relieved at an angle C to avoid wedging which takes place when cutting soft materials. It is useful to affix the stationary blade 24 by bracketing to the flange 23 to allow adjustability in relation to the cutting member 22 so that a specific clearance can be maintained as wear takes place.
Such a design aids appreciably in the cutting of material providing nearly unlimited ability to gradually reduce heretofore difficult to handle amounts of plastic, and other nonpulpable material. Obviously, the heavier and harder the shears are constructed, the heavier and tougher the waste materials to be handled can be.
We claim:
I. A waste disposal unit comprising a cylindrical tank for receiving waste material and water, a wall of said tank, a bottom portion of said tank extending radially inwardly from said wall, a disc impeller in said tank circumferentially spaced from said wall and supported for rotary motion, said bottom portion terminating in a circular edge adjacent said impeller, an upper surface of said impeller, material disintegrating teeth on said upper surface, a sieve in the form of a tubular member supported in said tank between said bottom portion and said impeller and radially encircling said impeller, said sieve being formed with a plurality of through apertures, a first shear member projecting upwardly from said uppersurface, a second shear member supported stationary relative to said first shear member and in spaced relation therewith, said first and second shear members extending above said sieve, means for rotating said impeller, first and second edges of said first and second shear members respectively, said first shear edge moving in the direction of said second shear edge upon rotation of said impeller, and a baffle member supported on said bottom portion and extending upwardly therefrom spaced from said second shear member whereby the flow of materials in said tank is deflected from said bottom portion into said second shear edge.
2. A waste disposal unit in accordance with claim 1 in which said first and second shear edges define an angle which is within the range of 35 to 55.
Claims (1)
- 2. A waste disposal unit in accordance with claim 1 in which said first and second shear edges define an angle which is within the range of 35* to 55*.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US80099969A | 1969-02-20 | 1969-02-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3584800A true US3584800A (en) | 1971-06-15 |
Family
ID=25179931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US800999A Expired - Lifetime US3584800A (en) | 1969-02-20 | 1969-02-20 | Waste pulping machine with shear members |
Country Status (4)
Country | Link |
---|---|
US (1) | US3584800A (en) |
DE (1) | DE2005252C3 (en) |
GB (1) | GB1245908A (en) |
SE (1) | SE354198B (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3784116A (en) * | 1971-09-28 | 1974-01-08 | Wascon Syst Inc | Pulping system with jet assist for pulper discharge |
USRE28677E (en) * | 1969-09-29 | 1976-01-13 | Black Clawson Fibreclaim, Inc. | Waste treatment system |
US5451004A (en) * | 1993-09-08 | 1995-09-19 | Somat Corporation | Integrated waste pulping and liquid extraction system |
US5464161A (en) * | 1994-09-30 | 1995-11-07 | The United States Of America As Represented By The Secretary Of The Navy | Solid waste pulper |
US5577674A (en) * | 1993-09-08 | 1996-11-26 | Somat Corporation | Waste pulping and liquid extraction system and method including automatic bag feeding |
US20060266856A1 (en) * | 2005-05-25 | 2006-11-30 | Shaw James G | Cutting ring element for a centrifugal chopper pump |
US20110162539A1 (en) * | 2008-09-18 | 2011-07-07 | Kiseok Youn | Peeling machine |
US20110220746A1 (en) * | 2010-03-11 | 2011-09-15 | Vaughan Co., Inc. | Internal Cutter on Submersed Mixer |
WO2016053125A1 (en) * | 2014-09-29 | 2016-04-07 | Opp Sp. Z O.O. | Macerator for utilisation of hospital waste, in particular cellulose pulp |
CN106111279A (en) * | 2016-06-29 | 2016-11-16 | 上海浦东环保发展有限公司 | A kind of for changing food waste slurrying and the integrated equipment of weight magazins' layout |
US20180160839A1 (en) * | 2015-04-23 | 2018-06-14 | Breville Pty Limited | Potato peeler |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3411918A1 (en) * | 1984-03-30 | 1985-10-10 | Meiko Maschinen- Und Apparatebau, Ingenieur Oskar Meier Gmbh & Co, 7600 Offenburg | MACHINE FOR CRUSHING AND COMPACTING WASTE |
DE3510227A1 (en) * | 1985-03-21 | 1986-10-02 | J.M. Voith Gmbh, 7920 Heidenheim | FABRIC LOOSE |
CN107486303B (en) * | 2017-08-24 | 2018-09-25 | 义乌市知新科技有限公司 | A kind of robot |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852200A (en) * | 1955-08-01 | 1958-09-16 | Frederick J Holzer | Food waste disposer |
US2947486A (en) * | 1956-06-11 | 1960-08-02 | Higer Harry | Cutting and disintegrating machine |
US3071328A (en) * | 1959-06-11 | 1963-01-01 | Aaron L Higer | Garbage grinding machine |
US3188942A (en) * | 1962-12-05 | 1965-06-15 | Somat Corp | Apparatus for disintegrating and dewatering fibrous material |
-
1969
- 1969-02-20 US US800999A patent/US3584800A/en not_active Expired - Lifetime
-
1970
- 1970-02-02 GB GB4967/70A patent/GB1245908A/en not_active Expired
- 1970-02-05 DE DE2005252A patent/DE2005252C3/en not_active Expired
- 1970-02-18 SE SE02053/70A patent/SE354198B/xx unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2852200A (en) * | 1955-08-01 | 1958-09-16 | Frederick J Holzer | Food waste disposer |
US2947486A (en) * | 1956-06-11 | 1960-08-02 | Higer Harry | Cutting and disintegrating machine |
US3071328A (en) * | 1959-06-11 | 1963-01-01 | Aaron L Higer | Garbage grinding machine |
US3188942A (en) * | 1962-12-05 | 1965-06-15 | Somat Corp | Apparatus for disintegrating and dewatering fibrous material |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USRE28677E (en) * | 1969-09-29 | 1976-01-13 | Black Clawson Fibreclaim, Inc. | Waste treatment system |
US3784116A (en) * | 1971-09-28 | 1974-01-08 | Wascon Syst Inc | Pulping system with jet assist for pulper discharge |
US5451004A (en) * | 1993-09-08 | 1995-09-19 | Somat Corporation | Integrated waste pulping and liquid extraction system |
US5577674A (en) * | 1993-09-08 | 1996-11-26 | Somat Corporation | Waste pulping and liquid extraction system and method including automatic bag feeding |
US5464161A (en) * | 1994-09-30 | 1995-11-07 | The United States Of America As Represented By The Secretary Of The Navy | Solid waste pulper |
US20070125893A1 (en) * | 2005-05-25 | 2007-06-07 | Shaw James G | Cutting ring element for a centrifugal chopper pump |
US20060266856A1 (en) * | 2005-05-25 | 2006-11-30 | Shaw James G | Cutting ring element for a centrifugal chopper pump |
US7584916B2 (en) * | 2005-05-25 | 2009-09-08 | Envirotech Pumpsystems, Inc. | Cutting ring element for a centrifugal chopper pump |
US20110162539A1 (en) * | 2008-09-18 | 2011-07-07 | Kiseok Youn | Peeling machine |
US20110220746A1 (en) * | 2010-03-11 | 2011-09-15 | Vaughan Co., Inc. | Internal Cutter on Submersed Mixer |
US8118244B2 (en) | 2010-03-11 | 2012-02-21 | Vaughan Company, Inc. | Internal cutter on submersed mixer |
WO2016053125A1 (en) * | 2014-09-29 | 2016-04-07 | Opp Sp. Z O.O. | Macerator for utilisation of hospital waste, in particular cellulose pulp |
US20180160839A1 (en) * | 2015-04-23 | 2018-06-14 | Breville Pty Limited | Potato peeler |
CN106111279A (en) * | 2016-06-29 | 2016-11-16 | 上海浦东环保发展有限公司 | A kind of for changing food waste slurrying and the integrated equipment of weight magazins' layout |
CN106111279B (en) * | 2016-06-29 | 2018-05-08 | 上海浦东环保发展有限公司 | One kind is used for kitchen garbage slurrying and the separated integrated equipment of weight impurity |
Also Published As
Publication number | Publication date |
---|---|
DE2005252C3 (en) | 1980-03-20 |
SE354198B (en) | 1973-03-05 |
GB1245908A (en) | 1971-09-15 |
DE2005252B2 (en) | 1979-07-19 |
DE2005252A1 (en) | 1970-09-10 |
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