GB2034591A - A compacting device for particulate material - Google Patents
A compacting device for particulate material Download PDFInfo
- Publication number
- GB2034591A GB2034591A GB7843424A GB7843424A GB2034591A GB 2034591 A GB2034591 A GB 2034591A GB 7843424 A GB7843424 A GB 7843424A GB 7843424 A GB7843424 A GB 7843424A GB 2034591 A GB2034591 A GB 2034591A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- compaction
- housing
- particulate material
- compacting
- 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.)
- Granted
Links
- 239000011236 particulate material Substances 0.000 title claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 15
- 238000005056 compaction Methods 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims description 2
- 230000007797 corrosion Effects 0.000 claims description 2
- 238000011038 discontinuous diafiltration by volume reduction Methods 0.000 claims description 2
- 239000000417 fungicide Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012856 packing Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000012254 powdered material Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B1/00—Packaging fluent solid material, e.g. powders, granular or loose fibrous material, loose masses of small articles, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B1/20—Reducing volume of filled material
- B65B1/24—Reducing volume of filled material by mechanical compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/243—Extrusion presses; Dies therefor using screws or worms using two or more screws working in the same chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B63/00—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged
- B65B63/02—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles
- B65B63/028—Auxiliary devices, not otherwise provided for, for operating on articles or materials to be packaged for compressing or compacting articles or materials prior to wrapping or insertion in containers or receptacles by pneumatic means
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Screw Conveyors (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
Abstract
A device for mixing and compacting particulate material uses a pair of meshing feed screws 9, 10 which convey the material along an elongate housing 11 whilst the air is being sucked out of the housing by a vacuum pump 21. A material entry section 1 and a material discharge section 14 are provided at opposite ends of the housing. Both feed screws 9, 10 are driven by a motor 8. <IMAGE>
Description
SPECIFICATION
A compacting device for particulate material
This invention relates to a compacting device for reducing the volume of particulate material so as to facilitate packing storing and transport, and to increase the speed of operation in machines using the material.
Such a device can be used in combination with a mixer which mixes particulate materials and then feeds them to the compacting device for compaction.
Compaction devices are known where the particulate material is forced into a cylindrical duct by a delivery chute. The material is compressed against the cylindrical wall of the duct, and air is exhausted by a suction pump. This process has limitations, in that it can only be used for powdered materials of low specific weight, such as fungicides. Also, the feed from the delivery chute into the duct causes the material to condense and to stop the feed.
According to the present invention, there is provided a compacting device for compacting particulate material, the device comprising a housing having an entry section, a compaction section and a discharge section, wherein the compaction section has, when seen in cross-section, a figure-of-eight shape with a pair of meshing feed screws arranged one in each part of the section and overlapping in the centre of the section, means for driving the two feed screws, and means for exhausting air from the housing.
In such a device, the particulate material is conveyed in the central area of the conveying section by the overlapping parts of the feed screws. The material therefore is less likely to adhere to the walls of the section than with the prior art device.
The invention will now be further described, by way of example, with reference to the accompanying drawings, in which:
Figure 1 is a general view of a device according to the invention;
Figure 2 is a plan view, in more detail, of the device according to the invention; and
Figure 3 is a cross-section on the line Ill-Ill from
Figure 2.
The device has a housing 20 divided into an entry section 1, a compaction section 11 and a delivery section 14. Particulate material is charged to the entry section in the direction of the arrow 22 and compacted particulate material leaves the device from the discharge section 14 in the direction of the arrow 23. A suction pump 21 connected to the compaction section 11 sucks air out of the housing 20.
Turning now to Figure 2, parts of feed screws 9 and 10 can be seen, directly through the entry section 1, and has dotted lines passing along the compaction section 11. The feed screws 9 and 10 have shafts 2, 3 which extend from the lefthand end of the housing. The other ends of the shafts are mounted in bearings 12, 13 at the opposite end of the housing.
The screws 9, 10 are driven by a motor 8 via belts 6,7 and pulleys 4,5 on the ends of the screw shafts.
As can be seen in Figure 3, the compaction section 11 has internally a figure of eight shape formed by two semi cylindrical halves 15, 16 joined to a central portion.
In operation, the particulate material is charged into the entry section 1 and when the feed screws 9, 10 are in motion the material is conveyed along the length of the compaction section 11, whilst air is being exhausted, to the discharge section 14 where a thick compacted product is discharged.
The device described can compact particulate materials of any particle size, fluidity or chemical composition and can be automatically controlled to achieve the correct compaction condition.
The various parts are constructed as separate modules which can be easily dismantled for cleaning. The internal parts can be all painted or of stainless steel to prevent corrosion.
Such a device can produce a volume reduction of from 20% to 80% depending on the different characteristics of the materials compacted.
1. A compacting device for compacting particulate material, the device comprising a housing having an entry section, a compaction section and a discharge section, wherein the compaction section has, when seen in cross section, a figure-of-eight shape with a pair of meshing feed screws arranged one in each part of the section and overlapping in the centre of the section, means for driving the two feed screws, and means for exhausting air from the housing.
2. A device as claimed in claim 1, wherein both feed screws are driven by the same motor in the same rotational direction.
3. A device as claimed in claim 1 or claim 2, wherein the means for exhausting air from the housing comprises a suction pump connected to the compaction section.
4. A compacting device for compacting particulate material, substantially as herein described with reference to and as shown in the accompanying drawing.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (4)
1. A compacting device for compacting particulate material, the device comprising a housing having an entry section, a compaction section and a discharge section, wherein the compaction section has, when seen in cross section, a figure-of-eight shape with a pair of meshing feed screws arranged one in each part of the section and overlapping in the centre of the section, means for driving the two feed screws, and means for exhausting air from the housing.
2. A device as claimed in claim 1, wherein both feed screws are driven by the same motor in the same rotational direction.
3. A device as claimed in claim 1 or claim 2, wherein the means for exhausting air from the housing comprises a suction pump connected to the compaction section.
4. A compacting device for compacting particulate material, substantially as herein described with reference to and as shown in the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7843424A GB2034591B (en) | 1978-11-07 | 1978-11-07 | Compacting device for particulate material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7843424A GB2034591B (en) | 1978-11-07 | 1978-11-07 | Compacting device for particulate material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2034591A true GB2034591A (en) | 1980-06-11 |
| GB2034591B GB2034591B (en) | 1983-03-30 |
Family
ID=10500847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7843424A Expired GB2034591B (en) | 1978-11-07 | 1978-11-07 | Compacting device for particulate material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2034591B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0165651B1 (en) * | 1984-04-26 | 1994-08-31 | Corning Glass Works | Process for mixing and extruding ceramic materials |
| NL9301103A (en) * | 1993-06-24 | 1995-01-16 | Theodorus Gijsbertus Maria Van | Method for storing and/or transporting dry manure, and device for compressing and packaging dry manure |
| US5452492A (en) * | 1992-09-26 | 1995-09-26 | Hamilton; Robin | Material collection |
| US5611268A (en) * | 1992-09-26 | 1997-03-18 | Hamilton; Robin | Compactor with expanding and contracting nozzle |
| WO2001014210A1 (en) * | 1999-08-23 | 2001-03-01 | Ciba Specialty Chemicals Holding Inc. | Method and device for densifying pulverized material |
| WO2003029078A1 (en) * | 2001-10-01 | 2003-04-10 | Dow Corning Corporation | Apparatus and method for increasing density of finely divided particulate matter |
| EP1512629A3 (en) * | 2001-10-01 | 2006-05-17 | Dow Corning Corporation | Apparatus and method for increasing density of finely divided particulate matter |
-
1978
- 1978-11-07 GB GB7843424A patent/GB2034591B/en not_active Expired
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0165651B1 (en) * | 1984-04-26 | 1994-08-31 | Corning Glass Works | Process for mixing and extruding ceramic materials |
| US5452492A (en) * | 1992-09-26 | 1995-09-26 | Hamilton; Robin | Material collection |
| US5611268A (en) * | 1992-09-26 | 1997-03-18 | Hamilton; Robin | Compactor with expanding and contracting nozzle |
| US5768744A (en) * | 1992-09-26 | 1998-06-23 | Hamilton; Robin | Self-propelled waste collection vehicle |
| NL9301103A (en) * | 1993-06-24 | 1995-01-16 | Theodorus Gijsbertus Maria Van | Method for storing and/or transporting dry manure, and device for compressing and packaging dry manure |
| WO2001014210A1 (en) * | 1999-08-23 | 2001-03-01 | Ciba Specialty Chemicals Holding Inc. | Method and device for densifying pulverized material |
| EP1283169A3 (en) * | 1999-08-23 | 2003-03-05 | Ciba Specialty Chemicals Holding Inc. | Method and device for densifying pulverized material |
| US6688345B1 (en) | 1999-08-23 | 2004-02-10 | Ciba Specialty Chemicals Corporation | Method and device for densifying pulverized material |
| WO2003029078A1 (en) * | 2001-10-01 | 2003-04-10 | Dow Corning Corporation | Apparatus and method for increasing density of finely divided particulate matter |
| US6779692B2 (en) | 2001-10-01 | 2004-08-24 | Dow Corning Corporation | Apparatus and method for increasing density of finely divided particulate matter |
| EP1512629A3 (en) * | 2001-10-01 | 2006-05-17 | Dow Corning Corporation | Apparatus and method for increasing density of finely divided particulate matter |
| KR100886581B1 (en) * | 2001-10-01 | 2009-03-05 | 다우 코닝 코포레이션 | Apparatus and method for increasing the density of finely divided particulate matter |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2034591B (en) | 1983-03-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |