IE41608B1 - Apparatus for breaking a bond between plastics or rubber materials and metal - Google Patents
Apparatus for breaking a bond between plastics or rubber materials and metalInfo
- Publication number
- IE41608B1 IE41608B1 IE1886/75A IE188675A IE41608B1 IE 41608 B1 IE41608 B1 IE 41608B1 IE 1886/75 A IE1886/75 A IE 1886/75A IE 188675 A IE188675 A IE 188675A IE 41608 B1 IE41608 B1 IE 41608B1
- Authority
- IE
- Ireland
- Prior art keywords
- vessel
- waste material
- mill
- plastics
- metal
- Prior art date
Links
- 239000002184 metal Substances 0.000 title claims abstract description 17
- 239000004033 plastic Substances 0.000 title claims abstract description 15
- 229920003023 plastic Polymers 0.000 title claims abstract description 15
- 239000000463 material Substances 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims description 31
- 239000003507 refrigerant Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000007921 spray Substances 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 36
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 18
- 239000012634 fragment Substances 0.000 abstract description 5
- 238000005057 refrigeration Methods 0.000 abstract description 4
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical group [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000454 anti-cipatory effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000009699 differential effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
- B29B17/0404—Disintegrating plastics, e.g. by milling to powder
- B29B17/0408—Disintegrating plastics, e.g. by milling to powder using cryogenic systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
- B29B2017/0224—Screens, sieves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2705/00—Use of metals, their alloys or their compounds, for preformed parts, e.g. for inserts
- B29K2705/02—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
- B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Food Science & Technology (AREA)
- Processing Of Solid Wastes (AREA)
- Crushing And Grinding (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Liquid Crystal Substances (AREA)
Abstract
1513041 Impact pulverizers, comminuting at low temperatures VEREINIGTE ALUMINIUM-WERKE AG 21 Aug 1975 [5 Sept 1974] 34824/75 Heading B2A Scrap material and particular material with a plastics or rubber-to-metal boro e.g. bottle caps, is comminuted in an apparatus comprising a charging vessel 1 fed via a hopper 9 with a screen 10 and a pneumatic conveyor 11, delivering material via a metering feeder 3 and metering funnel 2 to a beater mill 13. The material in vessel 1 is refrigerated with liquid nitrogen the temperature being sensed by a thermometer 17 and charging level which determines onset of refrigeration by a photo-electric device 24. When the temperature and level are correct the feeder 3 delivers the embrittled material to the mill. The components are separated in a rotary separator 4. The P.V.C. or rubber fragments are collected in a funnel 9 and the bottle caps are discharged into a bin 5. The thermometer 17 is associated with a two-portion proportional controller which permits temperature progressively to approach a reference temperature by control of a liquid nitrogen valve 16 which supplies an atomising nozzle 15. A fan 21 draws nitrogen from the top of vessel 1 and thus maintains a slight vacuum in the vessel.
Description
This invention relates to apparatus for breaking a bond between plastics or rubber materials in waste materials, particularly bottle caps.
Apparatus for breaking a plastics-to-metal or rubber 5 -to-metal bond is already known.
It has been previously proposed to use a conveyor belt to carry cable waste through a refrigerating channel for processing where the refrigeration causes the waste to embrittle so that a subsequent separation of the plastics from the metal is easily possible.
It has also been previously proposed to size-reduce cable waste to be processed and at the same time cool it in a thermally insulated ball mill so that a subsequent recovery of the metal is similarly possible.
In both these types of apparatus, which are designed spec ifically for processing cable wastes, the material that 1608 is to be processed must be pre-sorted and possibly cut down to lengths. Moreover, the cable material as such calls for processing apparatus of a different construction to that which would be needed for example processing bottle caps.
According to the present invention there is provided apparatus for breaking the bond between plastics or rubber materials and metal in a waste material, comprising an upright vessel, means for charging the waste material into the upper part of the vessel, means for introducing refrigerant into the lower part of the vessel in such a manner that, when the apparatus is in operation, the refrigerant flows upwardly through the waste material in order to cool it, a mill mounted below the vessel for receiving cooled waste material when it has been cooled to a desired temperature in the vessel and for subjecting the waste material to deformation, thereby to separate from the metal plastics or rubber embrittled by cooling in the vessel, and means for separating the waste material from the mill into a metal fraction and a fraction comprising plastics or rubber.
The apparatus according to the present invention differs advantageously from conventional apparatus in that, firstly, in the case of bottle caps, no special preparation is needed before the bottle caps enter the apparatus and, secondly, the cooled waste material need merely be deformed in order to break the bond between the plastics or rubber materials and the metal. Other suitable waste materials in a similar form could also be treated.
In order to enable the invention to be more readily understood an embodiment thereof will now be described with reference to the accompanying drawing, which is a diagrammatic representation of an apparatus for processing metal bottle caps having a bonded PVC compound seal.
Metal bottle caps that are to be processed are poured into a charging hopper 9 which is covered at the top by a steel wire mesh screen 10. The caps should be αβ clean and dry as possible. The steel wire mesh screen has 40 mm. openings and is intended to intercept larger sized foreign matter as this would interfere with the normal process.
On the other hand, the close mesh does somewhat impede 10 the passage of the bottle caps which tend to accumulate in a heap on the mesh. A vibrator motor 23 therefore imparts gentle vibrations to the steel wire mesh screen and prevents the formation of heaps.
The bottle caps are withdrawn from the bottom of the charg15 ing hopper 9 by suction and conveyed in a current of air generated by a centrifugal fan 19 through a conveyor pipe 11 into the upper part of a storage vessel 1. The storage vessel 1 can thus be filled to a maximum level monitored by a photocell 24 which operates a relay to stop the centrifugal fan 19 when the maximum level is reached or exceeded.
When the bottle caps are withdrawn from the storage vessel 1 and the filling level drops below the maximum level the photo-cell restarts the centrifugal fan 19 by operating a time delay relay. The monitoring of the filling level is intended to ensure that the hopper is not overfilled, as this might cause the conveyor pipe 11 to be blocked.
As soon as the maximum filling level in the charging vessel 1 has been reached refrigeration of the bottle caps begins.
Refrigeration is effected by the admission of liquid nitrogen at a temperature of about-196°C. through an admission pipe 25. A magnetic valye 16 is opened for the liquid nitrogen to issue from an atomising nozzle 15 into a jet of recirculating air generated by a centrifugal fan 20.
The air conveys the refrigerant through pipe bends 7 and 8 into the lower part of the storage vessel 1. The lower part of the vessel 1 is conical and is fitted with a spacing screen (not shown) which permits the cold recirculating air to reach and make contact with the bottle caps from every side. Repeated recycling of the air upwardly through the waste material eventually reduces the temperature to the required level and the nitrogen content of the atmosphere inside vessel 1 becomes progressively higher.
The temperature is regulated by a resistance thermometer 17 in association with an on-off controller with feedback (two-position proportional action). Such a controller permits the temperature to approach a reference temperature in consecutive steps because the nitrogen content of the atmosphere inside vessel 1 becomes progressively higher.
The temperature is regulated by a resistance thermometer 17 in association with an on-off controller with feedback (two position proportional action). Such a controller permits the temperature to approach a reference temperature in consecutive steps because the activation time of the magnetic valve changes in proportion to the progressive approach of the actual temperature to the reference temperature. The greater the deviation the longer is the time the magnetic valve remains activated and vice versa. This type of controlling action is needed because the resistance thermometer measures the temperature inside the vessel and the magnetic valve 16 is some distance away on the outside. The distance between the primary and the final elements is therefore fairly long. However, the anticipatory oontrol provided by the two-position differential action compensates this drawback.
With the help of a further centrifugal fan 21 surplus nitrogen is abstracted from the top of the storage vessel through an exhaust pipe 12. At the same time this centrifugal fan serves the further purpose of maintaining a slight vacuum inside the vessel to prevent the heavier nitrogen (at a temperature of -150°C.) from escaping at the bottom through metering funnel 2 and beater mill 13.
This vacuum must also compensate the induced draught due to the beater mill 13. i The nitrogen which is abstracted at the top flows through the bottle caps in the middle and upper regions of the storage vessel 1. Owing to the large surface area to Volume ratio of the bottle caps an intense heat exchange takes place and eventually the nitrogen leaves through exhaust pipe 12 at a temperature of about 0°C.
The utilization of this countercurrent cooling greatly improves the efficiency of the use of the nitrogen. Any moisture that may have been introduced by the bottle caps is abstracted with the evaporated nitrogen.
After the desired temperature in the vessel has been reached nothing but nitrogen remains inside the storage vessel 1.
The conditions will then be as follows :1. The centrifugal fan 21 continuously abstracts the surplus evaporated nitrogen. 2. The centrifugal fan 19 draws nitrogen from the interior of the vessel 1 and blows the bottle caps into the vessel 1 through the conveyor pipe 11. However, fresh air continuously enters the vessel 1 with the bottle caps, but this air is mostly exhausted at once through the intake of the centrifugal fan 21 on the opposite side of the vessel 1. 4160 3. The temperature at the resistance thermometer 17 will be -180°C. (At the minimum charging level it will be about -5O°C. and at the maximum charging level O°C.) The cooled bottle caps are transferred to the beater mill 13 by a vibrator 18 when:(a) The desired temperature of -180°C. has been reached and , (b) The maximum filling level is established,this being necessary to ensure efficient use of the nitrogen.
When the filling level is below the maximum level satisfactory heat exchange cannot be achieved.
If the conditions (a) and (b) are satisfied then the vibrator is started in order to vibrate the metering feeder 3. The vibrations shake the bottle caps down the metering funnel 2 into the running beater mill 13.
This ensures that bottle caps cannot enter the beater mill before they are sufficiently cool. Moreover, an interlocking device on the vibrator 18 also prevents the stationary beater mill from being charged, and the charge then preventing the mill from starting.
The bottle caps drop into the running beater mill and are propelled through a perforated screen by the beater bars. The cooled caps are considerably deformed by the beater action and the PVC compound which has become brittle by virtue of the undercooling effect becomes detached from the caps and shatters into small fragments.
Caps and fragments slide down a chute into a rotary separa tor 4.
The rotary separator which contains a conveying screw in its interior axially propels the bottle caps by its rotation. The PVC fragments fall through the perforated external shell and are collected in a funnel 6 whence they are blown into a waste bin by a centrifugal fan 22. The bottle caps are discharged at the end of the rotary separator into a collecting bin 5. The centrifugal fan 21 which abstracts the surplus nitrogen from the top of the hopper 1 blows the collected caps into a container for scrap.
Minor foreign matters such as scraps of paper, splinters of glass or grains of sand have no adverse effect on the process. The cooling causes splinters of glass to become very brittle so that these disintegrate in a beater mill into small fragments which are screened out in a separator and enter a waste bin together with the plastics compound.
Claims (12)
1. Apparatus for breaking the bond between plastics or rubber materials and metal in a waste material, comprising an upright vessel, means for charging the 5 waste material into the upper part of the vessel, means for introducing refrigerant into the lower part of the vessel in such a manner that, when the apparatus is in operation, the refrigerant flows upwardly through the waste material in order to cool 10 it, a mill mounted below the vessel for receiving cooled waste material when it has been cooled to a desired temperature in the vessel and for subjecting the waste material to deformation, thereby to separate from the metal plastics or rubber embrittled by cooling 15 in the vessel, and means for separating the waste material from the mill into a metal fraction and a fraction comprising plastics or rubber.
2. Apparatus as claimed in Claim 1, wherein the means for· charging the waste material into the upper part of the 20 vessel comprise a charging hopper which contains a ’ mesh through which the waste material may pass, the hopper being connected to the vessel via a pneumatic conveyor pipe along which the waste material is conveyed.
3. Apparatus as claimed in Claim 1 or 2, wherein means are 25 provided for monitoring the level of waste material in the vessel.
4. Apparatus as claimed in any preceding Claim, wherein the means for introducing a refrigerant into the lower part of the vessel comprise an atomising nozzle arranged 30 to spray liquid refrigerant into a pipe connected to the vessel.
5. Apparatus as claimed in any preceding Claim, wherein means Cor measuring the temperature of the waste material is provided in the lower region of the vessel.
6. Apparatus as claimed in any preceding Claim, wherein a vibrating feeder is provided at the bottom of the vessel, for feeding the waste material to the mill.
7. Apparatus as claimed in Claim 6, wherein a control device is provided such that the feeder does not vibrate when the mill is full of waste material or stopped.
8. Apparatus as claimed in any preceding Claim, wherein a metering funnel is provided between the vessel and the mill.
9. Apparatus as claimed in any preceding Claim, wherein the mill is a beater mill.
10. Apparatus as claimed in any preceding Claim, wherein the means for separating the waste material into a VAfctal fraction and a fraction comprising plastics or rubber comprises a rotary separator with a perforated external shell.
11. Apparatus as claimed in Claim 10, wherein two bins are provided to collect the separated plastics or rubber materials and metal from the separating means.
12. Apparatus for breaking a bond between plastics or rubber materials and metal in waste material substantially as hereinbefore described, with reference to the accompanying drawing.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2442431A DE2442431A1 (en) | 1974-09-05 | 1974-09-05 | DEVICE FOR SEPARATING THE COMPOSITE PLASTIC OR RUBBER-METAL IN THE CASE OF BOTTLE CAPS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE41608L IE41608L (en) | 1976-03-05 |
| IE41608B1 true IE41608B1 (en) | 1980-02-13 |
Family
ID=5924895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE1886/75A IE41608B1 (en) | 1974-09-05 | 1975-08-28 | Apparatus for breaking a bond between plastics or rubber materials and metal |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT338600B (en) |
| BE (1) | BE832192A (en) |
| CH (1) | CH604899A5 (en) |
| DE (1) | DE2442431A1 (en) |
| DK (1) | DK396675A (en) |
| FI (1) | FI66548C (en) |
| FR (1) | FR2283767A1 (en) |
| GB (1) | GB1513041A (en) |
| IE (1) | IE41608B1 (en) |
| IT (1) | IT1041610B (en) |
| LU (1) | LU73322A1 (en) |
| NL (1) | NL176057C (en) |
| NO (1) | NO141595C (en) |
| SE (1) | SE416892B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4442954C1 (en) * | 1994-12-02 | 1996-05-09 | Noell Abfall & Energietech | Mechanical sepn. of plastics (non)-ferrous metals from mixt. |
| SE543881C2 (en) * | 2020-01-31 | 2021-09-14 | Eoe Eyewear Ab | Eyewear recycling method and recycled material |
| KR20230097081A (en) * | 2020-10-29 | 2023-06-30 | 레겐테크 에스.알.엘. 소시에타’ 베네피트 | Apparatus and method for production of items such as clothing |
| CN112588785A (en) * | 2020-11-27 | 2021-04-02 | 尚毅 | Sealed bottle recovery pretreatment device capable of being disassembled in large batch |
| CN112693028A (en) * | 2020-12-07 | 2021-04-23 | 江西德江隆科技有限公司 | Device is broken up with extrusion to rubber product processing |
| CN112892808A (en) * | 2021-01-14 | 2021-06-04 | 杨锦宏 | Extraction element is smashed to plant negative pressure |
| CN113413994A (en) * | 2021-06-23 | 2021-09-21 | 太湖县野滋味食品商贸有限公司 | Breaker is used in tea-seed oil seed production |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE210739C (en) * | ||||
| DE1004460B (en) * | 1953-08-31 | 1957-03-14 | Knapsack Ag | Device for cold grinding of solid, tough materials |
| DE1607462B1 (en) * | 1967-12-27 | 1970-12-03 | Beike Dipl Ing Hans | Process for the fine comminution of solid substances made by immersion in liquefied gas |
-
1974
- 1974-09-05 DE DE2442431A patent/DE2442431A1/en not_active Withdrawn
-
1975
- 1975-06-26 AT AT489675A patent/AT338600B/en not_active IP Right Cessation
- 1975-07-01 CH CH856075A patent/CH604899A5/xx not_active IP Right Cessation
- 1975-08-05 FI FI752218A patent/FI66548C/en not_active IP Right Cessation
- 1975-08-07 SE SE7508921A patent/SE416892B/en unknown
- 1975-08-07 BE BE2054508A patent/BE832192A/en not_active IP Right Cessation
- 1975-08-21 GB GB3482475A patent/GB1513041A/en not_active Expired
- 1975-08-25 IT IT6913675A patent/IT1041610B/en active
- 1975-08-28 NO NO752962A patent/NO141595C/en unknown
- 1975-08-28 IE IE1886/75A patent/IE41608B1/en unknown
- 1975-09-02 NL NL7510347A patent/NL176057C/en not_active IP Right Cessation
- 1975-09-02 FR FR7527654A patent/FR2283767A1/en active Granted
- 1975-09-03 LU LU73322A patent/LU73322A1/xx unknown
- 1975-09-04 DK DK396675A patent/DK396675A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| FR2283767A1 (en) | 1976-04-02 |
| FI66548C (en) | 1984-11-12 |
| NO141595B (en) | 1980-01-02 |
| NL7510347A (en) | 1976-03-09 |
| NO752962L (en) | 1976-03-08 |
| CH604899A5 (en) | 1978-09-15 |
| NO141595C (en) | 1980-04-09 |
| IT1041610B (en) | 1980-01-10 |
| SE7508921L (en) | 1976-03-08 |
| FI66548B (en) | 1984-07-31 |
| ATA489675A (en) | 1976-12-15 |
| SE416892B (en) | 1981-02-16 |
| AT338600B (en) | 1977-09-12 |
| BE832192A (en) | 1975-12-01 |
| NL176057B (en) | 1984-09-17 |
| DK396675A (en) | 1976-03-06 |
| IE41608L (en) | 1976-03-05 |
| FR2283767B1 (en) | 1980-01-11 |
| GB1513041A (en) | 1978-06-07 |
| LU73322A1 (en) | 1976-04-13 |
| NL176057C (en) | 1985-02-18 |
| DE2442431A1 (en) | 1976-03-25 |
| FI752218A (en) | 1976-03-06 |
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