GB2190860A - Apparatus for the hydrodynamic separation of a mixture of crushed products into first and second fractions - Google Patents
Apparatus for the hydrodynamic separation of a mixture of crushed products into first and second fractions Download PDFInfo
- Publication number
- GB2190860A GB2190860A GB8700371A GB8700371A GB2190860A GB 2190860 A GB2190860 A GB 2190860A GB 8700371 A GB8700371 A GB 8700371A GB 8700371 A GB8700371 A GB 8700371A GB 2190860 A GB2190860 A GB 2190860A
- Authority
- GB
- United Kingdom
- Prior art keywords
- channel
- liquid
- disposal
- flow
- ofthe
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
- B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
- B03B9/062—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being glass
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/60—Glass recycling
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
The apparatus comprises on the one hand, a flow channel (1) divided in three sections, namely an intake channel (4) for a liquid, a disposal channel (5) for the liquid, and a separator channel situated between the two first mentioned channels and, on the other hand, means (3),(7) for feeding the mixture to be separated to the separator channel, and means (2) for extracting one of the two separated fractions. Between the intake channel (4) and the disposal channel (5), there is a tank (10) having a flat bottom joined by an inclined plate to an external lateral wall of the separator channel. The means for extracting a first heavier fraction collected at the bottom of the separator channel is constituted by an elevator wheel (2) with buckets (13) situated above the flat bottom of the tank (10) and delivering this fraction on to a disposal device (14). A second lighter fraction is recovered in a draining device (15) above which the discharge end of disposal channel (5) is located. The first fraction to be recovered may be glass in cullet. <IMAGE>
Description
SPECIFICATION
Apparatus for the hydrodynamic separation of a mixture of crushed products into first and second fractions
The present invention concerns an apparatusforthe hydrodynamic separation of a mixture of crushed products into first and second fractions such as cullet obtained from the recovery of glass packaging.
It is known that the problem in using recovered glass lies essentially in separating the glass from all the materials wherewith it is mixed in the products for recovery. The glass for recovery is in fact mixed up with paper, plastic materials or metallic caps, but it is also intermingled with various waste materials for example such as wood and mud even if the glass for recovery is recovered separately from other refuse in specific containers. To allow the recovered glass to be reused, it is essential to eliminate all these heterogeneous materials. To ensure a better result it is necessary to eliminate asfaras possible, before the sorting proper, the adhesions which may exist between the glass and other materials, for instance asa result of gluing.The elimination ofthese adhesions will therefore be carried out in a preliminary stage and the invention assumes, therefore, that one wishes to separate a mixture of crushed solid products, that is to say a mixture of particles which are not bound together, of different kinds and densities. The particles treated in this way show considerable differences in size but generally, they have a volume oflessthan 10cm3 and mostly comprised between 0.05 and 5 cm3.
In FR-A-11 16258, there has already been described a method for separating the particles constituting a mass of complex pulverulent material.
In this method, these particles are dropped vertically in a liquid flow to which there is imparted a given velocity which is constant over the whole vertical cross-section of the liquid flow below the dropping point ofthe particles; each particle describes a path in the liquid flow whose parameters depend on the physicai characteristics of the particle, on the viscosity ofthe liquid, and on the velocity ofthe liquid flow. Because of this, each of the particles will reach the bottom surface ofthe liquid flow at different points the heaviest particles being nearest the vertical through their dropping point and the lightest particles being at the greatest distance, or they will even be carried away by the liquid flow.
Said FR-A-1116258 also concerns an apparatus for carrying outthis method. This apparatus comprises in particular a substantially horizontal flow channel with a rectangular cross-section containing (a) an intake channel forthe liquid which is provided with a
liquid injector and means for giving this liquid a uniform velocity, (b) a disposal channel fothe liquid, and (c) a separator channel situated between the other two. This separator channel is provided with meansforthe collection and disposal of the various
particle fractions. These means are constituted by caissons which are arranged on one ofthe lateral faces ofthe disposal channel and which extend
below the bottom of this channel. The bottom of the channel is perforated with an opening that is adjustable for each caisson.Because of this positioning on the edge of the channel, it is possible to extract the particles without interrupting the liquid and particle feed.
In fact, when a mixture has to be separated into two fractions, this document showsthe use of a vertical cylinder; the liquid is injected into this cylinder through its lower end, thereby inherently entailing the existence of a rising liquid flow, the product to be separated into two fractions dropping vertically at the upper end. In this case, one ofthe two fractions is collected at the base of the cylinder, and the other by overflowing at the upper portion. It is clearthat in this embodiment, which is the preferred embodiment, for separating a mixture into two fractions, the method described above is in no way applied.
Thus, it is an object of the present invention to propose an apparatus for the hydrodynamic separation of a mixture of crushed products into two fractions implementing the method described in FR-A-1 116258 cited above and allowing each of these fractions to be recovered continuously by separate means.
It is another object of the present invention to propose an apparatus of this type which has as small a size as possible and whose consumption of liquid is as low as possible.
Accordingly the present invention provides an apparatus forthe hydrodynamic separation of a mixture of crushed products into first and second fractions, comprising:- a substantially horizontal flow channel supplied, in use ofthe apparatus, with a liquid having a substantially constant and uniform velocity over the whole cross-section of the liquid flow, said channel comprising three sections having the same external wall, namely an intake channel for the liquid and provided with a liquid injector and means for obtaining a uniform velocityforthis liquid, a disposal channel forthe liquid, and a separator channel situated between the intake and disposal channels; means forfeeding the mixture of the crushed products issuing above said flow channel via an opening whose median line is substantially perpendicularto the velocity vectoror the liquid flow; a tank between the intake and disposal channels, said tank having a transverse cross-section in a vertical plane perpendicularto the axis of the substantially horizontal flow channel which can be inscribed in a rectanglewhose lower side corresponds to the flat bottom of said tank; an inclined plate joining said flat bottom ofthe tankto the external lateral wall of the separator channel,the bottom of said separator channel being constituted at the level oftank bytheflatbottom of saidtank; means for extracting said first fraction collected at the bottom of the separator channel, comprising an elevator wheel with buckets and rotatable about a substantially horizontal axis and situated above said flat bottom of the tank and being therefore laterally offset in relation to said substantially horizontal flow channel because ofthe inclination of the inclined plate, said buckets each having an opening issuing radially outwardly of said wheel and delivering said firstfraction to a disposal device; and a draining device above which there issues the disposal channel for recovering the second fraction which is carried along by the liquid.
Advantageously, the opening ofthe feeding means has a width which is small in relation to its length which extends perpendicular to the flow of the liquid.
This feeding means forthe mixture of crushed products preferably comprises a hopper opening above one end of a vibrating channel whose other end is constituted by the opening described above.
Advantageously, each bucket of the wheel comprises at least one perforated wall allowing at least partial drainage of the constituents ofthefirst fraction raised by the bucket.
As for the means for obtaining a uniform velocity of the liquid in the intake channel, it is preferably constituted by a grid whose plane is substantially perpendicular to the velocity vector of the flow of the liquid.
According to a preferred embodiment of the present invention, the draining device comprises a vibrating sieve above a first end of which the disposal channel issues and whose second end issues above a recovery device forthe second fraction and which is disposd above a collectortank for the liquid discharged from the disposal channel.
The present apparatus comprises a device for recycling the liquid collected in this tank towards the liquid injector in the intake channel.
Advantageously, the disposal device receiving the first fraction which is extracted by the wheel comprises means for rinsing and draining this fraction before its disposal.
Such an apparatus is in particular intended to separate a mixtureofcrushed products which is cullet previously subjected to soaking and/or jet rinsing,the particles ofthis mixture having volumes which are approximately below 10 cm3. In this case, water is used as the liquid; the velocity of this water in the disposal channel is preferably from 1 to 4 kilometers per hour, the uniformity of the water velocities, or oftheir components along the axis of flow, in one section ofthis channel being ensured to be at least approximately 5%.
The description thatfollows, and which is in no way restrictive, should be read in relation to the accompanying drawings, in which:
Figure 1 schematically represents a front elevation, along line I-I of Figure 2, of an apparatus in accordance with the present invention forthe hydrodynamic separation of a mixture of crushed products into two fractions;
Figure2 is a top view ofthe apparatus of Figure 1 and,
Figure3 is a side view ofthe apparatus of Figure 1 viewed along linelll-lll of Figure 2.
The drawings show an apparatus in accordance with the present invention for the hydrodynamic separation of a mixture of crushed products into two fractions comprises a flow channel 1, a means 2 for extracting a first one of two fractions collected at the bottom of one section of this flow channel 1, and a feeder device 3 for the mixture of the crushed
products.
The flow channel 1 is substantially horizontal and
is supplied with a liquid, in this case water, which in
accordance with the present embodiment has a velocity which is substantially constant and uniform overthe whole cross-section of the liquid flow. It comprisesthreesections: (i) an intake channel 4for the water, provided with a water injector and a
means for obtaining a uniform vplocityforthewater; (ii) a disposal channel 5 for this water; and(iii)a separatorchannel 6which is situated between the other two. These three sections constituting the flow channel 1 have the same external lateral wall.The
means for obtaining a uniform velocity ofthewater is constituted by a grid whose plane is substantially perpendicularto the velocity vector of the water flow and which is situated atthe point where the water is injected into the intake channel 4; this injection, schematically represented by the arrows F, is coaxial with the flow channel 1.
The injection ofthewaterthrough the grid into the intake channel 4 is such that the velocity ofthiswater in the flow channel 1 isfrom 1 to4kilometersper hour.
The uniformity of the velocities, or of their components, along the flow axis ofthe liquid flow in a cross-section of the flow channel 1 is ensured to at least approximately 5%.
The feeder device 3 issues above the separator channel 6 nearestto the intakechannel 4through an opening 7 whose median line is substantially perpendicularto the water flow. This opening 7 has a small width in relation to its length disposed perpendicularto the water flow so that the crushed productsdropthrough it with an initial velocity approximating to zero. This opening 7 can be provided with bars 7' whose width decreases in the direction of advance of the crushed products.
This feeder device 3 comprises in particular a hopper 8, filled with a mixture of crushed products to be separated, which opens above one end of a vibrator belts whose other end is constituted bythe opening 7. This vibrator belt9 is vibrated in the longitudinal direction along the double arrowT in such a way that the products collected beneath the hopper 8 are displaced along the belt 9 and evacuated through the opening 7.
In accordance with the present invention, the apparatus comprises a tank 10 which is situated between the intake channel 4 and the disposal channel 5. This tank has a transverse cross-section in a vertical plane perpendicular to the axis of channel 1 which can be inscribed in a rectangle whose lower side corresponds to the flat bottom 11 of thins tank, an inclined plate 12 joining this flat bottom 11 to the external lateral wall of the separator channel 6.
In the vicinity ofthe tank 10, the bottom ofthe separator channel 6 is thus constituted by the flat bottom 11 of this tank 10.
The tank 10 comprises means for extracting the firstfraction of the mixture of the crushed products which is collected on its flat bottom ii; these means are constituted by a bucket elevator wheel 2 with a substantially horizontal axis and situated above the flat bottom 11. This elevator wheel 2 is thus lateraliy offset in relation to the flow channel 1 because ofthe inclination of plate 12. The buckets 13 of this wheel each have an opening issuing radially outwardly of the wheel. Each bucket 13 comprises at least one perforated wall allowing at least partial drainage of the constituents ofthefirstfraction raised bythis bucket. An example of such a wheel 2 is disclosed in
FR-A-2523478.
Thefirstfraction collected and extracted bythe bucket wheel 2 is emptied into a disposal device 14 which comprises means for rinsing and draining the firstfraction before its disposal.
When the mixture ofthe crushed products is cullet, this first fraction, which is evacuated by the wheel 2 and the disposal device 14, is constituted by products other than glass.
The disposal channel 5 issues above a draining device 1Swhich allowsthe otheror "second" fraction of the crushed products carried along by the water to be recovered; when the mixture ofthe crushed products is cullet, this second fraction is the cullet itself which can be recycled when recovered in this way.
This draining device 15 comprises in particulara vibrating sieve 16 above one end of which there issues the disposal channel 5 and whose other end issues above a recovery device (not represented) for the second fraction.
The vibrating sieve 16 is preferably disposed above atank so asto collectthewaterdischarged from the disposal channel 5. This water can thus be recycled by means of a pump 18 towards the water injector into the intake channel 4. The path ofthe water betweenthetank 17 and the pump 18 is represented in Figure 1 by dot dashes with arrows.
As stated above such an apparatus is intended to separate, into two fractions, culletwhich has been subjected to a preliminary soaking and/orjet rinsing, the particles ofthis mixture having volumes of less than approximately 10 cm3. When such a mixture dropsthrough the opening 7 into the separator channel 6, the heaviest constituents, that is to say those not constituted by glass, drop onto the inclined plate 12(Figure3) in the vicinity of the separator channel 6 in such a waythattheyaccumulate on the flat bottom 11 1 or 11 ofthissametankbeneaththewheel2.
The buckets 13 ofthe wheel 2 can thus collect them and extract them from this tank 10 in orderto empty them into the disposal device 14. Asforthe lighter products which are carried along by the waterflow, they are emptied above the vibrating sieve 16 ofthe draining device 15, so asto be recovered and directed towards the glass melting furnaces.
Claims (13)
1. An apparatus for the hydrodynamic separation of a mixture of crushed products into first and second fractions, comprising:- a substantially horizontalflowchannel supplied, in use ofthe apparatus, with a liquid having a substantially constant and uniform velocity over the whole cross-section of the liquid flow, said channel comprising three sections having the same external wall, namely an intake channel forthe liquid and provided with a liquid injector and means for obtaining a uniformvelocityforthisliquid,a disposal channel for the liquid, and a separator channel situated between the intake and disposal channels;; means for feeding the mixtu re of the crushed products issuing above said flow channel via an opening whose median line is substantially perpendicularto the velocity vector of the liquid flow; a tank between the intake and disposal channels, said tank having a transverse cross-section in a vertical plane perpendicularto the axis of the substantially horizontal flow channel which can be inscribed in a rectangle whose lower side corresponds to the flat bottom of said tank; an inclined plate joining said flat bottom ofthetankto the external lateral wall of the separator channel, the bottom of said separator channel being constituted atthelevel oftankbytheflatbottom ofsaidtank; meansforextracting said firstfraction collected at the bottom of the separator channel, comprising an elevator wheel with buckets and rotatable about a substantially horizontal axis and situated above said flat bottom of the tank and being therefore laterally offset in relation to said substantialy horizontal flow channel because ofthe inclination of the inclined plate, said buckets each having an opening issuing radially outwardly of said wheel and delivering said firstfraction to a disposal device; and a draining device above which there issues the disposal channel for recovering the second fraction which is carried along by the liquid.
2. Apparatus according to claim 1, wherein the opening of said feeder means has a width which is small in relation to its length extending perpendiculartothe liquid flow.
3. Apparatus according to claim 1 or 2, wherein said feeder means for the mixture of the crushed products comprises a vibrator channel having an inlet end and an outlet end which is constituted by the opening, and a hopper issuing above said inlet end of said vibrator channel.
4. Apparatus according to any one of claims 1 to 3, wherein each said bucket of said wheel comprises at least one perforated wall allowing at least a partial drainage of the constituents ofthe firstfraction raised by said bucket.
5. Apparatus according to any one of claims 1 to 4, including a grid intheintakchannelforrendering the velocity ofthe liquid in the intake channel uniform, said grid having a plane substantially perpendicularto the velocity vector of the liquid flow.
6. Apparatus according to any one of ciaims 1 to 5, wherein said drainage device comprises a vibrating sieve having a first end above which said disposal channel issues and a second end which issues above a recovery device for the second fraction.
7. Apparatus according to claim 6, wherein the vibrating sieve is disposed above a collecting tank for receiving the liquid discharged from said disposal channel.
8. Apparatus according to claim 7, including means for recycling the liquid collected in the collecting tanktowardsthe liquid supply means.
9. Apparatus according to any one of claim 1 to 8, wherein said disposal device which receives the first fraction extracted bythewheel comprises meansfor rinsing and draining the said firstfraction before disposing of it.
10. Apparatus according to any one of claims 1 to 9 including means for subjecting culletto at leastone of a preliminary soaking and a jet rinsing action, the particles of said cullet having volumes smaller than approximately 10 cm3, and for delivering said cullet to said feeder means.
11. Apparatus according to any one of claims 1 to 10, wherein said liquid is water.
12. Apparatus according to claim 11, wherein the velocity of the water in the flow channel is from 1 to 4 km/h, and the uniformity oftheflowvelocities or of their components along the axis of flow ofthe water in a section of said channel is at least substantially 5%.
13. Apparatus for the hydrodynamic separation of a mixture of crushed components into first and second fractions, such apparatus being constructed and adapted to operate substantially as hereinbefore described with reference to, and as illustrated in, the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8607699A FR2599277B1 (en) | 1986-05-29 | 1986-05-29 | APPARATUS FOR HYDRODYNAMICALLY SEPARATING INTO TWO FRACTIONS A MIXTURE OF CRUSHED PRODUCTS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8700371D0 GB8700371D0 (en) | 1987-02-11 |
| GB2190860A true GB2190860A (en) | 1987-12-02 |
Family
ID=9335768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8700371A Withdrawn GB2190860A (en) | 1986-05-29 | 1987-01-08 | Apparatus for the hydrodynamic separation of a mixture of crushed products into first and second fractions |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE906027A (en) |
| DE (1) | DE3708259A1 (en) |
| FR (1) | FR2599277B1 (en) |
| GB (1) | GB2190860A (en) |
| IT (2) | IT1206847B (en) |
| NL (1) | NL189900C (en) |
| PT (1) | PT84113B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593144A2 (en) * | 1992-10-15 | 1994-04-20 | Roland Drechsle | Drainage scoop wheel |
| CN105963750A (en) * | 2016-04-29 | 2016-09-28 | 海宁市海牧农牧机械有限公司 | Sterilization kettle used for harmless disposal system of dead pigs |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107051710A (en) * | 2017-03-14 | 2017-08-18 | 湖南山瑞重工科技有限公司 | Sand washer with impeller |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB175334A (en) * | 1920-10-07 | 1922-02-07 | Ioan Lupascu | Improvements in separators for granular materials |
| US2590756A (en) * | 1946-05-10 | 1952-03-25 | Mines Domaniales De Potasse | Art of mineral separation |
| FR1116258A (en) * | 1954-12-09 | 1956-05-07 | Process and apparatus for separating the constituent particles from a mass of complex pulverulent material | |
| US3019900A (en) * | 1958-12-02 | 1962-02-06 | Prep Ind Combustibles | Dense liquid media type separator |
| FR2487699A1 (en) * | 1980-07-31 | 1982-02-05 | Remex Sa | Solids mixture separation feed - has liquid-filled decanting vessel overflowing into drain vessel with filter bottom |
| FR2523478B1 (en) * | 1982-03-17 | 1985-10-11 | Remex Sa | APPARATUS FOR SEPARATING SOLID MATERIALS IN THE PRESENCE OF A LIQUID |
-
1986
- 1986-05-29 FR FR8607699A patent/FR2599277B1/en not_active Expired
- 1986-12-23 BE BE0/217593A patent/BE906027A/en not_active IP Right Cessation
-
1987
- 1987-01-08 GB GB8700371A patent/GB2190860A/en not_active Withdrawn
- 1987-01-12 NL NL8700049A patent/NL189900C/en not_active IP Right Cessation
- 1987-01-15 PT PT84113A patent/PT84113B/en not_active IP Right Cessation
- 1987-01-16 IT IT6702587A patent/IT1206847B/en active
- 1987-01-16 IT IT5284387U patent/IT8752843V0/en unknown
- 1987-03-13 DE DE19873708259 patent/DE3708259A1/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0593144A2 (en) * | 1992-10-15 | 1994-04-20 | Roland Drechsle | Drainage scoop wheel |
| EP0593144A3 (en) * | 1992-10-15 | 1994-11-17 | Roland Drechsle | Drainage scoop wheel. |
| CN105963750A (en) * | 2016-04-29 | 2016-09-28 | 海宁市海牧农牧机械有限公司 | Sterilization kettle used for harmless disposal system of dead pigs |
| CN105963750B (en) * | 2016-04-29 | 2018-12-04 | 嘉兴星创科技有限公司 | A kind of sterilization kettle of sick dead pig innocuity disposal system |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8767025A0 (en) | 1987-01-16 |
| FR2599277B1 (en) | 1988-09-16 |
| PT84113B (en) | 1993-08-31 |
| DE3708259C2 (en) | 1992-04-23 |
| IT1206847B (en) | 1989-05-11 |
| GB8700371D0 (en) | 1987-02-11 |
| PT84113A (en) | 1987-09-18 |
| DE3708259A1 (en) | 1987-12-03 |
| NL189900C (en) | 1993-09-01 |
| FR2599277A1 (en) | 1987-12-04 |
| NL8700049A (en) | 1987-12-16 |
| IT8752843V0 (en) | 1987-01-16 |
| NL189900B (en) | 1993-04-01 |
| BE906027A (en) | 1987-04-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |