CA2584882A1 - System for particulate removal and reclamation in a manufacturing environment - Google Patents
System for particulate removal and reclamation in a manufacturing environment Download PDFInfo
- Publication number
- CA2584882A1 CA2584882A1 CA002584882A CA2584882A CA2584882A1 CA 2584882 A1 CA2584882 A1 CA 2584882A1 CA 002584882 A CA002584882 A CA 002584882A CA 2584882 A CA2584882 A CA 2584882A CA 2584882 A1 CA2584882 A1 CA 2584882A1
- Authority
- CA
- Canada
- Prior art keywords
- particulate
- air
- reclamation
- manufacturing environment
- housing
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
- B08B5/023—Cleaning travelling work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
Abstract
A system for removal and reclamation of particulate material from conveyor transported material surfaces in a manufacturing environment.
Description
1,11 1 Y 1 II 1 TECHNICAL FIELD:
7 [0001] The present invention relates to systems for removing and reclaiming particulate in a 8 manufacturing environment.
[0002] Particulate generation is widespread among several sectors of the manufacturing 1 I industry. For example, it is common in a sintering operation for powdered particulate to be 12 present on the surfaces of moulded pieces prior to heating. Similarly, surplus flour is readily 13 applied to manufactured baked goods to discourage friction with manufacturing surfaces. Wood 14 particulate is generated in a variety of activities in a woodworking operation. Extraneous particulate material can adversely affect the subsequent operations and may also be a health and 16 safety concern in some environments.
17 [0003] In particular, presence of particulate on the surface of manufactured goods is 18 undesirable for subsequent operations in the manufacturing process.
Sintering of a piece covered 19 in powdered metal particulate would result in rough, uneven surfaces.
Presence of excess flour during baking and packaging increases the probability of unwanted flour in the finished product.
21 Lacquering or painting wood surfaces covered in wood particulate would produce an unsightly 22 finish, contrary to the ideal specifications of the overall process.
Removal of particulate from 23 surfaces is advantageous to facilitate wholly effective manufacturing processes. The typical 24 method of particulate removal is a constant stream of compressed air by which dusts are blown off the maLerial surfaces into the surrounding environment.
26 [0004] This practice of particulate removal is both hazardous and costly.
In the short term, 27 particulate presence in a manufacturing environment is an irritant to many, thereby negatively 28 influencing safe work practices. Moreover, the effects of prolonged exposure to many 29 particulates are unknown. In addition to expense required to maintain a constant stream of 21632629.1 . I ~
i,l 1 compressed air, the dispersal of excess particulate is wasteful of a raw material used in the 2 process. Reclamation of such raw materials would naturally reduce manufacturing costs.
3 [0005] It is therefore an object of the present invention to obviate or mitigate at least one of 4 the above disadvantages.
BRIEF DESCRIPTION OF THE DRAWINGS
6 [0006] Embodiments of the invention will now be described by way of example only with 7 reference to the appended drawings wherein:
8 100071 FIG. 1 is a perspective view of a particle removal apparatus.
9 100081 FIG. 2 is a side view in section of the apparatus at Figure 1.
[0009] FIG. 3 is a top perspective view of the apparatus of Figure 1 11 [0010] FIG. 4 is a schematic diagram illustrating air flow and particulate flow within the 12 apparatus.
14 [0011] Referring therefore to the drawings and in particular Figure 1, a product transfer station includes a conveyor C upon which products P are moved in the direction of the arrow A.
16 A particle removal apparatus I is located on the conveyor C in the path of the products P to 17 remove ex:traneous particulate material from the surface of the product.
18 100121 The particle removal apparatus I includes a housing 2 having upstream and 19 downstream end walls 3a, 3b respectively and side walls 3c. A lid 4 is supported on the upper edge of the walls 3 and is sealed to the walls.
21 100131 Each of the end walls 3a, 3b has an opening 5, 6 respectively. A
door 7, 8 is pivotally 22 mounted in the opening for movement about a transverse horizontal axis by hinges 9. The 23 openings 5, 6 extend substantially the entire width of the conveyor C so as not to impede 24 progress of the product P.
21632629.1 I I i 1 100141 Each of the end walls 3a, 3b has an elongated slot 12, 13 positioned above the 2 respective opening. The slot 12 on the upstream wall 3a is lower than the slot 13 on the down 3 stream wall 3b.
4 [0015] An air re-circulation system generally indicated at 20 is connected between the slots 12, 13 to re-circulate air through the housing 2. The air re-circulation system includes a 6 manifold 22 connected to the slot 13 on the down stream end wall 3b. The manifold is 7 connected to an injector vacuum pump indicated at 24 which is supplied with compressed air 8 from a coinpressor (not shown) through an inlet 25. A suitable pump is available from Taylor 9 Fluids Limited under Model# CDS/750. Under typical operating conditions, this pump provides a throughput of xCFM from a supplier of compressed air at yCFM at zPSI.
11 [0016] The output of the pump 24 is connected to a vertically mounted cyclone particulate 12 separator 26 having an air intake 28, air output 30 and particulate output 32. A separation 13 chamber 34 is provided between the intake 28 and the outputs 30, 32 in a conventional manner.
14 A particulate collection device 36 is positioned below the particulate output 32.
100171 A reclaimed air transfer conduit 38 is connected to the air output 30 and extends 16 along the length of the housing 2. The conduit 30 is connected through elbows with an inlet 17 manifold 40 which covers the slot 12 and is hermetically sealed to the end wall 3 a.
18 [0018] A stationary air knife 42 shown in ghosted outline may be provided at the slot 12 19 mounted within to direct air across the surface of the component.
[0019] In operation, the housing 2 is positioned on a conveyor system so as not to impede 21 material transfer. The application of compressed air to the air intake induces a re-circulating 22 flow of air from the interior of housing 2, through the separator 26 and air transfer conduit 38 23 back to the housing 2. As components P with surface particulate are transported through entry 24 door by conveyor C, the air flow from the slot 12 or stationary air knife 46 projects a high velocity stream of compressed air across the surfaces of the component thereby removing surface 26 particulate. The vacuum pump 24 draws air from the housing 2 to circulate contaminated air 21632629.1 I II
I I II 14ii41 1 from the housing 2, through vacuum pump 24 and into the air intake 28 of cyclone particulate 2 separator 26.
3 100201 Cyclone particulate separator 26 functions based on centrifugal acceleration and 4 pressure differences acting on particulate of varying specific gravity, generated when the high velocity particulate-contaminated air is received tangentially to that of the vertical upper portion 6 of the cyclone. The centrifugal force generated by the high velocity cyclone input pushes 7 particulate against the inner walls of cyclone particulate separator 26. At the same time, gravity 8 continues to exert a downward force on the particulate, resulting in an inverted conical descent 9 along the inside wall of the cyclone. Particulate exits the cyclone particulate separator 26 via the output 36 and into the particulate collection means 36. Concurrently, a narrow cyclone, coaxial 11 to that of the first acts in an upward direction discharging particulate-free air from the cyclone 12 particulate separator 34, through air outlet 38.
13 [0021] The non-contaminated air stream passes through air transfer conduit 38 and manifold 14 40 for re-circulation within the housing 2.
100221 In this manner, the particulate material is removed from the component within the 16 closed environment of the housing 2 and is recovered in the cyclone 26 for subsequent use.
17 [0023] The use of the injection pump reduces the consumption of compressed air and the 18 recirculation of the air in a closed loop inhibits the distribution of particulate in the air. The 19 recovery of the particulate reduces the use of raw material where is may be recycled.
[0024] In the embodiment above, the housing 2 is sealed by the doors 5, 7. In an alternative 21 arrangement, the openings in the housing 2 may be covered with flexible rubber sheet, with a cut 22 out conforming closely to the shape of the article. With this arrangement it has been found that 23 the momentary sealing as the component passes through the opening is sufficient to induce a 24 high velocity flow of air around the article from outside the box 2 and displace particulates. In these circumstances, the air knife is not required.
21632629.1
7 [0001] The present invention relates to systems for removing and reclaiming particulate in a 8 manufacturing environment.
[0002] Particulate generation is widespread among several sectors of the manufacturing 1 I industry. For example, it is common in a sintering operation for powdered particulate to be 12 present on the surfaces of moulded pieces prior to heating. Similarly, surplus flour is readily 13 applied to manufactured baked goods to discourage friction with manufacturing surfaces. Wood 14 particulate is generated in a variety of activities in a woodworking operation. Extraneous particulate material can adversely affect the subsequent operations and may also be a health and 16 safety concern in some environments.
17 [0003] In particular, presence of particulate on the surface of manufactured goods is 18 undesirable for subsequent operations in the manufacturing process.
Sintering of a piece covered 19 in powdered metal particulate would result in rough, uneven surfaces.
Presence of excess flour during baking and packaging increases the probability of unwanted flour in the finished product.
21 Lacquering or painting wood surfaces covered in wood particulate would produce an unsightly 22 finish, contrary to the ideal specifications of the overall process.
Removal of particulate from 23 surfaces is advantageous to facilitate wholly effective manufacturing processes. The typical 24 method of particulate removal is a constant stream of compressed air by which dusts are blown off the maLerial surfaces into the surrounding environment.
26 [0004] This practice of particulate removal is both hazardous and costly.
In the short term, 27 particulate presence in a manufacturing environment is an irritant to many, thereby negatively 28 influencing safe work practices. Moreover, the effects of prolonged exposure to many 29 particulates are unknown. In addition to expense required to maintain a constant stream of 21632629.1 . I ~
i,l 1 compressed air, the dispersal of excess particulate is wasteful of a raw material used in the 2 process. Reclamation of such raw materials would naturally reduce manufacturing costs.
3 [0005] It is therefore an object of the present invention to obviate or mitigate at least one of 4 the above disadvantages.
BRIEF DESCRIPTION OF THE DRAWINGS
6 [0006] Embodiments of the invention will now be described by way of example only with 7 reference to the appended drawings wherein:
8 100071 FIG. 1 is a perspective view of a particle removal apparatus.
9 100081 FIG. 2 is a side view in section of the apparatus at Figure 1.
[0009] FIG. 3 is a top perspective view of the apparatus of Figure 1 11 [0010] FIG. 4 is a schematic diagram illustrating air flow and particulate flow within the 12 apparatus.
14 [0011] Referring therefore to the drawings and in particular Figure 1, a product transfer station includes a conveyor C upon which products P are moved in the direction of the arrow A.
16 A particle removal apparatus I is located on the conveyor C in the path of the products P to 17 remove ex:traneous particulate material from the surface of the product.
18 100121 The particle removal apparatus I includes a housing 2 having upstream and 19 downstream end walls 3a, 3b respectively and side walls 3c. A lid 4 is supported on the upper edge of the walls 3 and is sealed to the walls.
21 100131 Each of the end walls 3a, 3b has an opening 5, 6 respectively. A
door 7, 8 is pivotally 22 mounted in the opening for movement about a transverse horizontal axis by hinges 9. The 23 openings 5, 6 extend substantially the entire width of the conveyor C so as not to impede 24 progress of the product P.
21632629.1 I I i 1 100141 Each of the end walls 3a, 3b has an elongated slot 12, 13 positioned above the 2 respective opening. The slot 12 on the upstream wall 3a is lower than the slot 13 on the down 3 stream wall 3b.
4 [0015] An air re-circulation system generally indicated at 20 is connected between the slots 12, 13 to re-circulate air through the housing 2. The air re-circulation system includes a 6 manifold 22 connected to the slot 13 on the down stream end wall 3b. The manifold is 7 connected to an injector vacuum pump indicated at 24 which is supplied with compressed air 8 from a coinpressor (not shown) through an inlet 25. A suitable pump is available from Taylor 9 Fluids Limited under Model# CDS/750. Under typical operating conditions, this pump provides a throughput of xCFM from a supplier of compressed air at yCFM at zPSI.
11 [0016] The output of the pump 24 is connected to a vertically mounted cyclone particulate 12 separator 26 having an air intake 28, air output 30 and particulate output 32. A separation 13 chamber 34 is provided between the intake 28 and the outputs 30, 32 in a conventional manner.
14 A particulate collection device 36 is positioned below the particulate output 32.
100171 A reclaimed air transfer conduit 38 is connected to the air output 30 and extends 16 along the length of the housing 2. The conduit 30 is connected through elbows with an inlet 17 manifold 40 which covers the slot 12 and is hermetically sealed to the end wall 3 a.
18 [0018] A stationary air knife 42 shown in ghosted outline may be provided at the slot 12 19 mounted within to direct air across the surface of the component.
[0019] In operation, the housing 2 is positioned on a conveyor system so as not to impede 21 material transfer. The application of compressed air to the air intake induces a re-circulating 22 flow of air from the interior of housing 2, through the separator 26 and air transfer conduit 38 23 back to the housing 2. As components P with surface particulate are transported through entry 24 door by conveyor C, the air flow from the slot 12 or stationary air knife 46 projects a high velocity stream of compressed air across the surfaces of the component thereby removing surface 26 particulate. The vacuum pump 24 draws air from the housing 2 to circulate contaminated air 21632629.1 I II
I I II 14ii41 1 from the housing 2, through vacuum pump 24 and into the air intake 28 of cyclone particulate 2 separator 26.
3 100201 Cyclone particulate separator 26 functions based on centrifugal acceleration and 4 pressure differences acting on particulate of varying specific gravity, generated when the high velocity particulate-contaminated air is received tangentially to that of the vertical upper portion 6 of the cyclone. The centrifugal force generated by the high velocity cyclone input pushes 7 particulate against the inner walls of cyclone particulate separator 26. At the same time, gravity 8 continues to exert a downward force on the particulate, resulting in an inverted conical descent 9 along the inside wall of the cyclone. Particulate exits the cyclone particulate separator 26 via the output 36 and into the particulate collection means 36. Concurrently, a narrow cyclone, coaxial 11 to that of the first acts in an upward direction discharging particulate-free air from the cyclone 12 particulate separator 34, through air outlet 38.
13 [0021] The non-contaminated air stream passes through air transfer conduit 38 and manifold 14 40 for re-circulation within the housing 2.
100221 In this manner, the particulate material is removed from the component within the 16 closed environment of the housing 2 and is recovered in the cyclone 26 for subsequent use.
17 [0023] The use of the injection pump reduces the consumption of compressed air and the 18 recirculation of the air in a closed loop inhibits the distribution of particulate in the air. The 19 recovery of the particulate reduces the use of raw material where is may be recycled.
[0024] In the embodiment above, the housing 2 is sealed by the doors 5, 7. In an alternative 21 arrangement, the openings in the housing 2 may be covered with flexible rubber sheet, with a cut 22 out conforming closely to the shape of the article. With this arrangement it has been found that 23 the momentary sealing as the component passes through the opening is sufficient to induce a 24 high velocity flow of air around the article from outside the box 2 and displace particulates. In these circumstances, the air knife is not required.
21632629.1
Claims
1. A system for removal and reclamation of particulate material from conveyor transported material surfaces in a manufacturing environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002584882A CA2584882A1 (en) | 2007-04-13 | 2007-04-13 | System for particulate removal and reclamation in a manufacturing environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002584882A CA2584882A1 (en) | 2007-04-13 | 2007-04-13 | System for particulate removal and reclamation in a manufacturing environment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2584882A1 true CA2584882A1 (en) | 2008-10-13 |
Family
ID=39855355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002584882A Abandoned CA2584882A1 (en) | 2007-04-13 | 2007-04-13 | System for particulate removal and reclamation in a manufacturing environment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2584882A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2005456C2 (en) * | 2010-10-05 | 2012-04-06 | Theo Oossanen | Push element for use in push-pull ventilation system, and method of applying push-pull ventilation using the same. |
| WO2012130770A3 (en) * | 2011-03-29 | 2013-03-14 | Turbofilter Gmbh | Apparatus for cleaning the surface of moving metal webs |
| IT201800007468A1 (en) * | 2018-07-24 | 2020-01-24 | Apparatus for removing processing residues and related method | |
| IT202000012205A1 (en) * | 2020-05-25 | 2021-11-25 | F M Srl | SUSPENDED MATERIAL SEPARATION PROCESS AND PLANT |
-
2007
- 2007-04-13 CA CA002584882A patent/CA2584882A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2005456C2 (en) * | 2010-10-05 | 2012-04-06 | Theo Oossanen | Push element for use in push-pull ventilation system, and method of applying push-pull ventilation using the same. |
| WO2012130770A3 (en) * | 2011-03-29 | 2013-03-14 | Turbofilter Gmbh | Apparatus for cleaning the surface of moving metal webs |
| IT201800007468A1 (en) * | 2018-07-24 | 2020-01-24 | Apparatus for removing processing residues and related method | |
| IT202000012205A1 (en) * | 2020-05-25 | 2021-11-25 | F M Srl | SUSPENDED MATERIAL SEPARATION PROCESS AND PLANT |
| EP3915692A1 (en) * | 2020-05-25 | 2021-12-01 | F.M. S.r.l. | A separation process and plant for particulate matter |
| US11780687B2 (en) | 2020-05-25 | 2023-10-10 | F.M. S.R.L. | Separation process and plant for particulate matter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |