CN104307833B - Energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and close-range dust collection - Google Patents
Energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and close-range dust collection Download PDFInfo
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- CN104307833B CN104307833B CN201410420756.1A CN201410420756A CN104307833B CN 104307833 B CN104307833 B CN 104307833B CN 201410420756 A CN201410420756 A CN 201410420756A CN 104307833 B CN104307833 B CN 104307833B
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- bucket
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- pipe
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- guiding
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Classifications
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- 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
- B08B15/002—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using a central suction system, e.g. for collecting exhaust gases in workshops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2215/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B2215/006—Suction tables
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- Refuse Collection And Transfer (AREA)
Abstract
The invention discloses energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and regional dust collection, and relates to the energy-saving and environment-friendly field of steelmaking process technologies of metallurgical enterprises. The energy-saving and environment-friendly process equipment comprises a scrap steel discharging dust collecting and processing area and a scrap steel hopper filling dust collection area, and is equipped with dust removal equipment, wherein the scrap steel discharging dust collecting and processing area is provided with a scrap steel discharging groove, a sieve, an ash leakage opening, a horizontal conveyor belt, an inclined conveyor belt and a refuse hopper; two capture hoods and corresponding dust-absorbing pipes are mounted on two sides above the scrap steel discharging groove; the scrap steel hopper filling dust collection area is provided with a main body framework of which the three peripheral sides are sealed, hopper filling tanks of which the upper peripheral side surfaces are sealed are uniformly mounted on the main body framework, and each of the hopper filling tank adopts the structure that air guiding sloped tubes with a plurality of holes formed in the inclined planes and air ducts are arranged on two sides of the upper opening; a scrap steel hopper is placed below each of the hopper filling tanks, and the scrap steel hoppers are placed on a flat truck with positioning blocks; the dust removal equipment and the pipeline through which the capture hoods in the two areas are connected are all provided with electric valves. The electric valves can be opened or closed as required to achieve the energy-saving and efficient dust removal purposes.
Description
Technical field
The present invention relates to smelter process for making technical energy saving field of Environment Protection, specifically one kind can avoid repeating to hang
The process technology equipment of fortune effectively elimination steel scrap area post dust.
Background technology
It is equipped with steel scrap area in the most of steel mill of metallurgy industry, steel scrap area undertakes as steel mill primary raw material supply area
Outsourcing and being discharged into of recovery steel scrap deposited and joined the technical process that bucket is confessed, be the important step of steel-smelting production process process,
It is also to produce the serious of post dust and be difficult to the region administered, and be that impact is smelted steel quality degree of purity and caused the energy
The important step wasting.
It is difficult to the reason administer：Mainly determined by solid space and traditional layout type, general steel scrap region is joined
Some crane gears are double-deck driving, and lower floor is the driving being provided with magnechuck for joining bucket（Hereinafter referred to as：Magnetic hanging
Car）；Upper strata is the driving that can lead to converter（Hereinafter referred to as：Handling is driven a vehicle）Add converter for handling steel scrap；Upper and lower layer lifting
Equipment belongs to interchange operation, and the spatial altitude in steel scrap area is to be determined by the height of converter installation, handling ride height
（By different tonnage converter installations, handling driving more than 20 meters）Even, point across setting independent Pei Dou area magnetic hanging car
Need 10 meters about of height space, and the span in space is to be determined by handling driving length.So the spatial altitude in steel scrap area
High, span is big or cross-operation causes closing difficult, and dust dedusting trapping is also very difficult.
Producing post dust seriously has two reasons：One is because the scattered steel scrap of outsourcing society and interior circulation reclaim steel scrap meeting
Bring the rubbish thing of a large amount of variable grains into（Soil, impurity, oxide）；Two the reason be process layout and technology mode, by work
Skill layout steel scrap area can be divided into：Storage area, Pei Dou area and weighing area.Technology mode is：The steel scrap bought is stored in by tilting of automobile
Storage area, then steel scrap is drawn and loaded in the steel scrap bucket in Pei Dou area by magnetic hanging car.Then, useless by install by handling driving
Steel bucket is hung to and weighs on the electronic scale of Weighing Area.Join bucket because of magnetic hanging car to carry out under non-weighing state, thus always wrong
Difference, when weight is not enough or overweight, then is given to increase steel scrap by magnetic hanging car by handling traveling crane Hui Peidou area or suctions out steel scrap,
Hang go back to weighing area again to weigh, such repetitive operation, till load-bearing metering meets technological requirement, is then hoisted to stokehold and loads
In converter.So steel scrap enter unload topple over be scattered, join bucket and repeat counterweight when being scattered, cause the rubbish of fine particle to be raised
Rise and produce substantial amounts of Dust Dispersion in the regional space of post.And partial dust, with during steel scrap addition converter, meets high temperature
Reentrainment of dust can be produced and enter formation air pollution in air, be also to lead to one of key factor of haze weather.
The reason impact is smelted steel quality degree of purity and is caused energy waste：The dust of larger particles（Rubbish）Comparison of ingredients
Complicated entrance when converter participates in smelting can be entered in steel with the form of field trash, badly influence the quality degree of purity of steel, be
Remove this type impurity and must take Secondary Steelmaking Technology, so a large amount of energy consumptions of external refining equipment can be derived.And
And the operation handling driving of repetition, magnetic hanging car, to meet counterweight accurately, causing driving to consume substantial amounts of electric energy.
So general steel mill be reduce the impact of regional dust concentration and using the air Spontaneous release method do not closed, that is,：
Abandon its pollution level of environmental improvement to well imagine.And the heavier steel mill depending on environmental improvement takes semi-open-type and in factory
Roof portion is provided with the governance model of dedusting fume trap cover, but due to fume trap cover position too rise from dirt source too away from, not only environment protection treating
DeGrain and there is also electric energy waste problem.
Content of the invention
In order to solve the problems, such as smelter steel scrap energy consumption in production process height and environmental pollution, the present invention provides a kind of steel scrap
Efficiently join bucket, the energy saving and environment friendly process technology equipment of dust low coverage trapping.
The present invention solves its technical problem and is adopted the technical scheme that：It is divided into four parts by function：
One is steel scrap discharging dust catching treatment region, and it includes：Steel scrap blowpit, the middle and lower part of steel scrap blowpit is provided with
Sieve, the middle bottom of steel scrap blowpit is provided with grey leakage port, and the lower section of grey leakage port is provided with flat conveyer belt, flat conveyer belt the inner both sides
It is connected to inner termination one side shaft holder, the another side shaft holder of inner termination, flat conveyer belt outer end side is connected with outer end one side axle
Bearing, opposite side connect the another side shaft holder in outer end, and the another side shaft holder in outer end connects flat low speed catcher, and flat low speed catcher connects flat subtracting
Fast machine, flat reductor connects flat catcher at a high speed, puts down catcher at a high speed and reconnects ordinary telegram machine；It is provided with below the outer end of flat conveyer belt tiltedly
Conveyer belt, is provided with refuse hopper below the right-hand end of oblique conveyer belt；Flat conveyer belt is used for discharging with oblique conveyer belt reasonable coordination
And the big dust particle that is sieved into by sieve of suction handling process or rubbish are transported in refuse hopper, complete larger particles rubbish or powder
Effective process of dirt；The top of steel scrap blowpit is respectively provided on two sides with：Hopper side fume trap cover, hopper another side fume trap cover,
Hopper side fume trap cover connects hopper side sweep-up pipe, and hopper another side fume trap cover connects hopper another side sweep-up pipe, unloads for trapping
Disperse little particle dust during material and suction handling, realizes the effective process of primary dusts；
Two is steel scrap bunker dust catching area, and it includes：Main body frame, main body frame is uniformly provided with left side bunker
Groove, middle bunker groove, right side bunker groove, left side bunker groove, middle bunker groove, the upper periphery surface of right side bunker groove is by framework top
Panel is closed；Two periphery facades of main body frame are provided with a side sealing plate, another side sealing plate, main body frame and steel scrap discharging
Groove inclined-plane closed plate connects to be closed；
Bunker groove one side suitable for reading in left side is provided with：Left bucket side wind-guiding inclined-plane pipe, left bucket side wind-guiding inclined-plane pipe
Middle outside connects left bucket side guide duct, and the inclined-plane of left bucket side wind-guiding inclined-plane pipe is drilled with several left bucket sides air-guiding hole；
Bunker groove another side suitable for reading in left side is provided with：Left bucket another side wind-guiding inclined-plane pipe, outside the centre of left bucket another side wind-guiding inclined-plane pipe
Side connects left bucket another side guide duct, and the inclined-plane of left bucket another side wind-guiding inclined-plane pipe is drilled with several left bucket another side air-guiding hole；
The one side of left side bunker groove bottom is provided with：Left bucket side fume trap cover, left bucket side fume trap cover top middle
It is connected with left bucket side sweep-up pipe；The another side of left side bunker groove bottom is provided with：Left bucket another side fume trap cover, left bucket another side trapping
Cover top middle is connected with left bucket another side sweep-up pipe；
Middle bunker groove one side suitable for reading is provided with：Middle bucket side wind-guiding inclined-plane pipe, middle bucket side wind-guiding inclined-plane pipe
Struggle against in connecting side guide duct in middle outside, and the inclined-plane of middle bucket side wind-guiding inclined-plane pipe is drilled with several middle bucket sides air-guiding hole；
Middle bunker groove another side suitable for reading is provided with：Middle bucket another side wind-guiding inclined-plane pipe, outside the centre of middle bucket another side wind-guiding inclined-plane pipe
Struggle against in connecting another side guide duct for side, and the inclined-plane of middle bucket another side wind-guiding inclined-plane pipe is drilled with several middle bucket another side air-guiding hole；
The one side of middle bunker groove bottom is provided with：Middle bucket side fume trap cover, middle bucket side fume trap cover top middle
It is connected with middle bucket side sweep-up pipe；The another side of middle bunker groove bottom is provided with：Middle bucket another side fume trap cover, middle bucket another side trapping
Cover top middle is connected with middle bucket another side sweep-up pipe；
Bunker groove one side suitable for reading in right side is provided with：Right bucket side wind-guiding inclined-plane pipe, right bucket side wind-guiding inclined-plane pipe
Middle outside connects right bucket side guide duct, and the inclined-plane of right bucket side wind-guiding inclined-plane pipe is drilled with several right bucket sides air-guiding hole；
Bunker groove another side suitable for reading in right side is provided with：Right bucket another side wind-guiding inclined-plane pipe, outside the centre of right bucket another side wind-guiding inclined-plane pipe
Side connects right bucket another side guide duct, and the inclined-plane of right bucket another side wind-guiding inclined-plane pipe is drilled with several right bucket another side air-guiding hole；
The one side of right side bunker groove bottom is provided with：Right bucket side fume trap cover, right bucket side fume trap cover top middle
It is connected with right bucket side sweep-up pipe；The another side of right side bunker groove bottom is provided with：Right bucket another side fume trap cover, right bucket another side trapping
Cover top middle is connected with right bucket another side sweep-up pipe；Join bucket process generation dust catching for completing magnetic hanging car.
Three is that steel scrap weighs it and includes：Left side bunker groove, middle bunker groove, the corresponding placement in underface of right side bunker groove
Have：Left side steel scrap bucket, middle steel scrap bucket, right side steel scrap bucket, left side steel scrap bucket, middle steel scrap bucket, the lower section of right side steel scrap bucket have
Flatcar, and be fixed with flatcar：The left bucket side locating piece of left side steel scrap bucket both sides, left bucket another side locating piece, middle useless
The middle bucket side locating piece of steel bucket both sides, middle bucket another side locating piece, the right bucket side locating piece of right side steel scrap bucket both sides, right bucket are another
Side locating piece, and left side steel scrap bucket, middle steel scrap bucket, right side steel scrap bucket bucket post-positioning block below；
The left end of flatcar is provided with the flatcar motor driving, and flatcar motor connection flatcar is taken at a high speed, and flatcar is taken at a high speed
Connect flatcar reductor, flatcar reductor is simultaneously connected with side left wheel, another side left wheel by the flatcar low speed catcher of lower section；
The lower section of flatcar also has wheel in side, wheel, the right wheel in side, the right wheel in another side, car in side left wheel, side in another side
Wheel, the right wheel in side are placed on the track of side, and in another side left wheel, another side, wheel, the right wheel in another side are placed on another side line rail
On；The lower section of side track and another side line rail is provided with electronic scale；The right end of flatcar is provided with side backstop apparatus and another side is stopped
Lug-latch, for carry steel scrap bucket into and out of Pei Dou area and steel scrap weight weighing.
Four is cleaner, and it includes：Cleaner unit, the entrance point of cleaner unit connects dust suction supervisor, and dust suction supervisor front end is same
When reconnect hopper dust suction supervisor and bucket dust suction supervisor；On hopper dust suction supervisor, hopper electrodynamic valve is installed, hopper electrodynamic valve
Back segment reconnects hopper side sweep-up pipe and hopper another side sweep-up pipe simultaneously；On bucket dust suction supervisor, bucket dust suction master is installed electronic
Valve, pipe is put down in the back segment connection bucket dust suction of the bucket main electrodynamic valve of dust suction, the bucket flat pipe of dust suction is uniformly distributed and is connected to left bucket dust suction
In middle pipe, middle bucket dust suction pipe, right bucket dust suction in manage；Left bucket dust suction electrodynamic valve, left bucket dust suction electricity are provided with pipe in left bucket dust suction
The back segment both sides of dynamic valve reconnect left bucket side sweep-up pipe, the other end of left bucket another side sweep-up pipe simultaneously；On pipe in middle bucket dust suction
Middle bucket dust suction electrodynamic valve is installed, during the back segment both sides of middle bucket dust suction electrodynamic valve reconnect simultaneously, bucket side sweep-up pipe, middle bucket are another
The other end of side sweep-up pipe；Right bucket dust suction electrodynamic valve, the back segment both sides of right bucket dust suction electrodynamic valve are provided with pipe in right bucket dust suction
Reconnect right bucket side sweep-up pipe, the other end of right bucket another side sweep-up pipe simultaneously；
The outfan connecting fan air inlet pipe of cleaner unit, fan inleting pipe connecting fan, blower fan connects motor catcher, motor
Catcher reconnects motor；The blower fan exhaust outlet connecting fan exhaust duct of blower fan, blower fan exhaust duct is provided with air-out house steward electronic
Valve, air-out house steward's electrodynamic valve connects wind-guiding and puts down pipe, the flat pipe of wind-guiding is uniformly distributed and is connected to pipe in left bucket wind-guiding, middle bucket leads
Manage in pipe in wind, right bucket wind-guiding, left bucket wind-guiding electrodynamic valve, the back segment two of left bucket wind-guiding electrodynamic valve are provided with left bucket wind-guiding on pipe
Side reconnects left bucket side guide duct, the other end of left bucket another side guide duct simultaneously；On pipe in middle bucket wind-guiding, middle bucket is installed to lead
Wind electrodynamic valve, the back segment both sides of middle bucket wind-guiding electrodynamic valve reconnect simultaneously in bucket side guide duct, middle bucket another side guide duct another
One end；Right bucket wind-guiding electrodynamic valve is provided with pipe in right bucket wind-guiding, the back segment both sides of right bucket wind-guiding electrodynamic valve reconnect the right side simultaneously
Bucket side guide duct, the other end of right bucket another side guide duct, for realizing steel scrap discharging dust catching treatment region and steel scrap bunker
The dedusting purpose in dust catching area.
The invention has the beneficial effects as follows：The present invention is according to the regional characteristics producing dust, separates：Steel scrap discharging dust is caught
Collection treatment region and steel scrap bunker dust catching area, and the fume trap cover of dust is reasonably arranged on the optimum bit nearest away from dirt source
Put the effect it is achieved that power consumption is minimum, dedusting is optimum.Meanwhile, dexterously the discharge wind of dedusting fan is utilized in steel scrap bunker
At notch, not only act as the effect of closing airborne dust and form convection current with the fume trap cover suction airflow of mouth under bunker groove, significantly carry
High dust removing effects.And flatcar track has electronic scale, repetition handling can be eliminated, join bucket process, effectively reduce driving fortune
Row power consumption.
Brief description：
Describe the present invention with reference to the accompanying drawings and examples：
Fig. 1 is that schematic diagram cuts open in the vertical view office of the present invention；
Fig. 2 is the schematic front view of the present invention；
Fig. 3 is the schematic side view of the present invention；
Fig. 4 is the fractionation schematic diagram of the present invention；
In Fig. 1,2,3,4：1. steel scrap blowpit, 2. hopper side fume trap cover, 3. hopper side sweep-up pipe, 4. right side bunker
Groove, 5. inclined-plane closed plate, 6. middle bunker groove, 7. main body frame, a 8. side sealing plate, 9. right bucket another side sweep-up pipe, 10. material
Groove electrodynamic valve, 11. hopper dust suction supervisors, 12. air-out house steward's electrodynamic valves, 13. right bucket dust suction electrodynamic valves, 14. dust suction supervisors, 15.
Cleaner unit, 16. fan inleting pipes, 17. blower fans, 18. motor catchers, 19. motors, 20. blower fan exhaust outlets, 21. blower fan exhaust ducts,
22. bucket dust suction supervisors, manage in 23. right bucket dust suctions, 24, struggle against the main electrodynamic valve of dust suction, 25. right bucket side sweep-up pipes, and in 26., bucket is inhaled
Manage in dirt, struggle against in 27. dust suction electrodynamic valve, and struggle against in 28. another side sweep-up pipe, bucket side sweep-up pipe in 29., manage in 30. left bucket dust suctions,
31. bucket dust suctions are put down and are managed, 32. left bucket dust suction electrodynamic valves, the 33. left another side sweep-up pipes that struggle against, 34. left bucket side sweep-up pipes, 35. flatcars,
36. another side line rails, 37. magnechucks, 38. side tracks, 39. left bucket side guide ducts, 40. left side bunker grooves, 41. wind-guidings
Flat pipe, 42. another side sealing plates, manage in 43. left bucket wind-guidings, 44. left bucket wind-guiding electrodynamic valves, the 45. left another side guide ducts that struggle against, in 46.
Bucket side guide duct, manages in bucket wind-guiding in 47., and struggle against in 48. wind-guiding electrodynamic valve, and struggle against in 49. another side guide duct, 50. right bucket sides
Guide duct, 51. right bucket wind-guiding electrodynamic valves, manage in 52. right bucket wind-guidings, the 53. right another side guide ducts that struggle against, 54. framework top panels, 55.
Hopper another side sweep-up pipe, 56. sieves, 57. hoppers another side fume trap cover, 58. ash silo inclined ladders, 59. oblique conveyer belts, 60. tiltedly convey
One side shaft holder, 61. refuse hoppers, the 62. another side shaft holders of oblique conveying, 63. oblique conveying low speed catchers, 64. oblique conveying reductors,
65. oblique conveyings are taken at a high speed, 66. oblique conveying translators, 67. dummy cars, 68. flat conveyer belts, 71. left bucket another side wind-guiding inclined-planes
Pipe, the 72. left another side air-guiding holes that struggle against, 73. left bucket side air-guiding holes, 74. left bucket side wind-guiding inclined-plane pipes, 75. left bucket side trappings
Cover, 76. side left wheels, 77. left side steel scrap buckets, 78. left bucket side locating pieces, 79. electronic scales, the 80. left another side fume trap covers that struggle against,
The 81. left another side locating pieces that struggle against, bucket side wind-guiding inclined-plane pipe in 82., bucket side air-guiding hole in 83., bucket side fume trap cover in 84.,
Struggle against in 85. another side fume trap cover, 86. right bucket side fume trap covers, 87. bucket post-positioning blocks, the 88. right another side fume trap covers that struggle against, and 89. sides are stopped
Lug-latch, 90. grey leakage ports, 91. outer end one side shaft holder, the another side shaft holder in 92. outer ends, 93. flat low speed catchers, 94. flat decelerations
Machine, 95. flat high speed catchers, 96. ordinary telegram machines, 97. right bucket another side wind-guiding inclined-plane pipes, the 98. right another side air-guiding holes that struggle against, 99. right buckets one
Side air-guiding hole, 100. right bucket side wind-guiding inclined-plane pipes, struggle against in 101. another side wind-guiding inclined-plane pipe, and struggle against in 102. another side air-guiding hole,
Wheel in 103. sides, 104. middle steel scrap buckets, 105. right side steel scrap buckets, the right wheel in 106. sides, 107. right bucket another side positioning
Block, 108. another side backstop apparatus, the right wheel in 109. another sides, 110. right bucket side locating pieces, struggle against in 111. another side locating piece, and 112. is another
Wheel in side, bucket side locating piece .114. another side left wheel, 115. flatcar motors in 113., 116. flatcars are taken at a high speed, and 117.
Flatcar reductor, 118. flatcar low speed catchers.
Specific embodiment
As shown in Figure 1,2,3, 4, it is divided into four parts by function：
Part I：Steel scrap discharging dust catching treatment region, it includes：Steel scrap blowpit 1, in steel scrap blowpit 1 under
Portion is provided with sieve 56, and the middle bottom of steel scrap blowpit 1 is provided with grey leakage port 90, and the lower section of grey leakage port 90 is provided with flat conveyer belt
68, flat conveyer belt 68 the inner both sides are connected to inner termination one side shaft holder, the another side shaft holder of inner termination, outside flat conveyer belt 68
End side is connected with outer end one side shaft holder 91, opposite side connects the another side shaft holder in outer end 92, and the another side shaft holder in outer end 92 connects
Flat low speed catcher 93, the flat low speed catcher 93 flat reductor 94 of connection, flat reductor 94 connects flat catcher 95 at a high speed, puts down and take at a high speed
95 reconnection ordinary telegram machines 96；Oblique conveyer belt 59, the right side high order end of oblique conveyer belt 59 are installed below the outer end of flat conveyer belt 68
It is provided with refuse hopper 61 below portion；Flat conveyer belt 68 and oblique conveyer belt 59 reasonable coordination are used for dummy car 67 discharging and magnechuck
During 37 suction, the big dust particle being sieved into by sieve 56 or rubbish are transported in refuse hopper 61；The top both sides of steel scrap blowpit 1
It is respectively equipped with：Hopper side fume trap cover 2, hopper another side fume trap cover 57, hopper side fume trap cover 2 connects hopper side sweep-up pipe 3,
Hopper another side fume trap cover 57 connects hopper another side sweep-up pipe 55, for trapping when dummy car 67 discharging and magnechuck 37 suction more
Scattered little particle dust；
Part II：Steel scrap bunker dust catching area, it includes：Main body frame 7, main body frame 7 is uniformly provided with a left side
Side bunker groove 40, middle bunker groove 6, right side bunker groove 4, left side bunker groove 40, middle bunker groove 6, the last week of right side bunker groove 4
Side surface is closed by framework top panel 54；Two periphery facades of main body frame 7 are provided with a side sealing plate 8, another side sealing plate
42, it is connected with inclined-plane closed plate 5 between main body frame 7 and steel scrap blowpit 1 and close；
Bunker groove 40 one side suitable for reading in left side is provided with：Left bucket side wind-guiding inclined-plane pipe 74, left bucket side wind-guiding inclined-plane
In the middle of pipe 74, outside connects left bucket side guide duct 39, and the inclined-plane of left bucket side wind-guiding inclined-plane pipe 74 is drilled with several left buckets one
Side air-guiding hole 73；
Bunker groove 40 another side suitable for reading in left side is provided with：Left bucket another side wind-guiding inclined-plane pipe 71, left bucket another side wind-guiding is oblique
In the middle of facial canal 71, outside connects left bucket another side guide duct 45, and the inclined-plane of left bucket another side wind-guiding inclined-plane pipe 71 is drilled with several left buckets
Another side air-guiding hole 72；
The one side of left side bunker groove 40 bottom is provided with：Left bucket side fume trap cover 75, left bucket side fume trap cover 75 top
Middle is connected with left bucket side sweep-up pipe 34；
The another side of left side bunker groove 40 bottom is provided with：Left bucket another side fume trap cover 80, left bucket another side fume trap cover 80 top
Middle is connected with left bucket another side sweep-up pipe 33；
Middle bunker groove 6 one side suitable for reading is provided with：Middle bucket side wind-guiding inclined-plane pipe 82, middle bucket side wind-guiding inclined-plane pipe
During in the middle of 82, outside connects, bucket side guide duct 46, the inclined-plane of middle bucket side wind-guiding inclined-plane pipe 82 is drilled with several middle bucket sides
Air-guiding hole 83；
Middle bunker groove 6 another side suitable for reading is provided with：Middle bucket another side wind-guiding inclined-plane pipe 101, middle bucket another side wind-guiding is oblique
In the middle of facial canal 101, struggle against another side guide duct 49 in connecting in outside, the inclined-plane of middle bucket another side wind-guiding inclined-plane pipe 101 is drilled with several in
Struggle against another side air-guiding hole 102；
The one side of middle bunker groove 6 bottom is provided with：Middle bucket side fume trap cover 84, in middle bucket side fume trap cover 84 top
Between place be connected with middle bucket side sweep-up pipe 29；
The another side of middle bunker groove 6 bottom is provided with：Middle bucket another side fume trap cover 85, in middle bucket another side fume trap cover 85 top
Between place be connected with middle bucket another side sweep-up pipe 28；
Bunker groove 4 one side suitable for reading in right side is provided with：Right bucket side wind-guiding inclined-plane pipe 100, right bucket side wind-guiding inclined-plane
In the middle of pipe 100, outside connects right bucket side guide duct 50, and the inclined-plane of right bucket side wind-guiding inclined-plane pipe 100 is drilled with several right buckets
Side air-guiding hole 99；
Bunker groove 4 another side suitable for reading in right side is provided with：Right bucket another side wind-guiding inclined-plane pipe 97, right bucket another side wind-guiding inclined-plane
In the middle of pipe 97, outside connects right bucket another side guide duct 53, the inclined-plane of right bucket another side wind-guiding inclined-plane pipe 97 is drilled with several right buckets another
Side air-guiding hole 98；
The one side of right side bunker groove 4 bottom is provided with：Right bucket side fume trap cover 86, in right bucket side fume trap cover 86 top
Between place be connected with right bucket side sweep-up pipe 25；
The another side of right side bunker groove 4 bottom is provided with：Right bucket another side fume trap cover 88, in right bucket another side fume trap cover 88 top
Between place be connected with right bucket another side sweep-up pipe 9；
Part III：Steel scrap weighs, and it is that have left side bunker groove 40, middle bunker groove 6, the underface of right side bunker groove 4
The corresponding left side steel scrap bucket 77 placed, middle steel scrap bucket 104, right side steel scrap bucket 105, and left side steel scrap bucket 77, middle steel scrap
Bucket 104, the flatcar 35 of right side steel scrap bucket 105 lower section, and be fixed with flatcar 35：The left bucket one of left side steel scrap bucket 77 both sides
Side locating piece 78, left bucket another side locating piece 81, the middle bucket side locating piece 113 of middle steel scrap bucket 104 both sides, middle bucket another side positioning
Block 111, the right bucket side locating piece 110 of right side steel scrap bucket 105 both sides, right bucket another side locating piece 107, and left side steel scrap bucket
77th, middle steel scrap bucket 104, right side steel scrap bucket 105 bucket post-positioning block 87 below；The left end of flatcar 35 is provided with the flatcar driving
Motor 115, flatcar motor 115 connects flatcar catcher 116 at a high speed, flatcar catcher 116 connection flatcar reductor 117 at a high speed, flatcar
Reductor 117 is simultaneously connected with side left wheel 76, another side left wheel 114 by the flatcar low speed catcher 118 of lower section；Under flatcar
Side also has wheel 103 in side, wheel 112, the right wheel in side 106, the right wheel in another side 109, side left wheel 76, in another side
In side, wheel 103, the right wheel in side 106 are placed on side track 38, wheel 112, another side in another side left wheel 114, another side
Right wheel 109 is placed on another side line rail 36；The lower section of side track 38 and another side line rail 36 is provided with electronic scale 79；Flatcar 35
Right end side backstop apparatus 89 and another side backstop apparatus 108 are installed, to complete steel scrap weigh with transport function；
Part IV：Cleaner, it includes：Cleaner unit 15, the entrance point of cleaner unit 15 connects dust suction supervisor 14, dust suction
It is responsible for 14 front ends and reconnect hopper dust suction supervisor 11 and bucket dust suction supervisor 22 simultaneously；Hopper electricity is provided with hopper dust suction supervisor 11
Dynamic valve 10, the back segment of hopper electrodynamic valve 10 reconnects hopper side sweep-up pipe 3 and hopper another side sweep-up pipe 55 simultaneously；Bucket dust suction master
The bucket main electrodynamic valve of dust suction 24, the flat pipe 31 of back segment connection bucket dust suction of the bucket main electrodynamic valve of dust suction 24 are provided with pipe 22, bucket dust suction is put down
Be uniformly distributed on pipe 31 be connected to left bucket dust suction in pipe 30, middle bucket dust suction in pipe 26, right bucket dust suction in pipe 23, left bucket dust suction
Left bucket dust suction electrodynamic valve 32 is provided with middle pipe 30, the back segment both sides of left bucket dust suction electrodynamic valve 32 reconnect left bucket side simultaneously and inhale
Dirt pipe 34, the other end of the left another side sweep-up pipe 33 that struggles against, pipe 26 in middle bucket dust suction is provided with middle bucket dust suction electrodynamic valve 27, and middle bucket is inhaled
Struggle against in reconnecting side sweep-up pipe 29, the other end of the middle another side sweep-up pipe 28 that struggles against simultaneously for the back segment both sides of dirt electrodynamic valve 27, right bucket
Right bucket dust suction electrodynamic valve 13 is provided with pipe 23 in dust suction, the back segment both sides of right bucket dust suction electrodynamic valve 13 reconnect right bucket one simultaneously
Side sweep-up pipe 25, the other end of the right another side sweep-up pipe 9 that struggles against；
The outfan connecting fan air inlet pipe 16 of cleaner unit 15, fan inleting pipe 16 connecting fan 17, blower fan 17 connects electricity
Machine catcher 18, motor catcher 18 reconnection motor 19；The blower fan exhaust outlet 20 connecting fan exhaust duct 21 of blower fan 17, blower fan air draft
Air-out house steward's electrodynamic valve 12 is provided with pipe 21, air-out house steward's electrodynamic valve 12 connects the flat pipe of wind-guiding 41, on the flat pipe of wind-guiding 41 uniformly
It is connected to pipe 43 in left bucket wind-guiding, pipe 47 in middle bucket wind-guiding, pipe 52 in right bucket wind-guiding, pacify on pipe 43 in left bucket wind-guiding
Equipped with left bucket wind-guiding electrodynamic valve 44, the back segment both sides of left bucket wind-guiding electrodynamic valve 44 reconnect left bucket side guide duct 39, a left side simultaneously
Struggle against the other end of another side guide duct 45；Middle bucket wind-guiding electrodynamic valve 48, middle bucket wind-guiding electrodynamic valve are provided with pipe 47 in middle bucket wind-guiding
Struggle against in reconnecting side guide duct 46, the other end of the middle another side guide duct 49 that struggles against simultaneously for 48 back segment both sides；Manage in right bucket wind-guiding
Right bucket wind-guiding electrodynamic valve 51 is installed on 52, the back segment both sides of right bucket wind-guiding electrodynamic valve 51 reconnect right bucket side guide duct simultaneously
50th, the other end of the right another side guide duct 53 that struggles against；It is used for realizing steel scrap discharging dust catching treatment region and steel scrap bunker dust catching
The dedusting purpose in area.
Work process：
Open air-out house steward's electrodynamic valve 12 first, right bucket wind-guiding electrodynamic valve 51, middle bucket wind-guiding electrodynamic valve 48, left bucket are led simultaneously
Wind electrodynamic valve 44, then drive after starting motor 19 blower fan to pass through motor and take over 18 to make blower fan 17 operate, by cleaner unit 15, dust suction
Supervisor 14 makes hopper dust suction supervisor 11, bucket dust suction be responsible in 22 simultaneously and produces negative pressure.
1. steel scrap discharging dust catching processing procedure
Before steel scrap toppled over by dummy car 67, open hopper electrodynamic valve 10, operating blower fan 17 will be responsible for by cleaner unit 15, dust suction
14th, hopper side sweep-up pipe 3, hopper side fume trap cover 2 and hopper another side sweep-up pipe 55, hopper another side fume trap cover 57 unload in steel scrap
Form negative pressure wind area at hopper 1, start flat conveyer belt 68 and oblique conveyer belt 59 simultaneously.When steel scrap toppled over by dummy car 67, produce
Molecule dust be drawn in cleaner unit 15, the larger particles of generation fall through flat conveyer belt through 56 screening of sifting out
68th, oblique conveyer belt 59 loads in refuse hopper 61；
2. steel scrap bunker dust catching processing procedure
First empty steel scrap bucket is placed between the locating piece on flatcar, flatcar is left into main body frame 7 lower section and by only
Lug-latch stops.Now, steel scrap bucket is all in the underface of bunker groove.Before steel scrap bunker dispensing, open the bucket main electrodynamic valve of dust suction
24 and the right bucket dust suction electrodynamic valve 13 of corresponding right side bunker groove 4 or middle bunker are opened according to the regioselectivity of steel scrap bunker
The middle bucket dust suction electrodynamic valve 27 of groove 6 or the left bucket dust suction electrodynamic valve 32 of left side bunker groove 40.And formed in corresponding bunker groove
Wind diversion circulation area, taking right side bunker groove 4 as a example：When steel scrap is fallen into right side bunker groove 4 by steel scrap magnechuck 37, little particle
Dust can be constantly another with right bucket side guide duct 50, right bucket another side guide duct 53 malleation wind and right bucket side fume trap cover 86, right bucket
Side fume trap cover 88 negative pressure wind simultaneously enters right bucket side sweep-up pipe 25, right bucket another side sweep-up pipe 9, and flows through pipe in the dust suction of right bucket
23rd, the bucket flat pipe of dust suction 31, bucket dust suction supervisor 22, dust suction supervisor 14 entrance cleaner unit 15.Often bucket steel scrap counterweight can pass through lower section
Electronic scale 79 metering adjustment, after the completion for the treatment of that all steel scrap buckets are equipped with request, flatcar left-hand is outputed.
Energy-saving principle：
Steel scrap discharging dust catching processing procedure is operated with steel scrap bunker dust catching processing procedure, can independently use.?
During independent use, load can greatly reduce, thus realizing effect of saves energy.
Claims (1)
1. a kind of energy saving and environment friendly steel scrap efficiently joins bucket, regional dust traps the equipment of technique, is divided into steel scrap to unload feed powder by function
Dirt trapping treatment region, steel scrap bunker dust catching area, steel scrap weighing, four parts of cleaner；At steel scrap discharging dust catching
Reason area, it includes：Steel scrap blowpit（1）, steel scrap blowpit（1）Middle and lower part sieve is installed（56）, steel scrap blowpit（1）'s
Middle bottom is provided with grey leakage port（90）, grey leakage port（90）Lower section flat conveyer belt is installed（68）, flat conveyer belt（68）Inner both sides
It is connected to inner termination one side shaft holder（69）, the another side shaft holder of inner termination（70）, flat conveyer belt（68）Outer end side connects
There is outer end one side shaft holder（91）, opposite side connect outer end another side shaft holder（92）, the another side shaft holder in outer end（92）Connect flat low
Speed catcher（93）, flat low speed catcher（93）Connect flat reductor（94）, flat reductor（94）Connect flat catcher at a high speed（95）, put down height
Speed catcher（95）Reconnect ordinary telegram machine（96）；Flat conveyer belt（68）Outer end below oblique conveyer belt is installed（59）, oblique conveyer belt
（59）Right side high order end portion below be provided with refuse hopper（61）；Flat conveyer belt（68）With oblique conveyer belt（59）Reasonable coordination is used for will
Dummy car（67）Discharging and magnechuck（37）During suction, by sieve（56）The big dust particle being sieved into or rubbish are transported to rubbish
Bucket（61）Interior；Steel scrap blowpit（1）Top be respectively provided on two sides with：Hopper side fume trap cover（2）, hopper another side fume trap cover
（57）, hopper side fume trap cover（2）Connect hopper side sweep-up pipe（3）, hopper another side fume trap cover（57）Connect the another side of hopper to inhale
Dirt pipe（55）, for trapping dummy car（67）Discharging and magnechuck（37）The little particle dust of disperse during suction；
It is characterized in that, steel scrap bunker dust catching area it include：Main body frame（7）, main body frame（7）On a left side is uniformly installed
Side bunker groove（40）, middle bunker groove（6）, right side bunker groove（4）, left side bunker groove（40）, middle bunker groove（6）, right side dress
Bucket（4）Upper periphery surface by framework top panel（54）Close；Main body frame（7）Two periphery facades to be provided with side close
Shrouding（8）, another side sealing plate（42）, main body frame（7）With steel scrap blowpit（1）Between use inclined-plane closed plate（5）Connect and seal
Close；
Described left side bunker groove（40）One side suitable for reading is provided with：Left bucket side wind-guiding inclined-plane pipe（74）, left bucket side wind-guiding
Inclined-plane pipe（74）In the middle of outside connect left bucket side guide duct（39）, left bucket side wind-guiding inclined-plane pipe（74）Inclined-plane on be drilled with
Several left bucket sides air-guiding hole（73）；
Described left side bunker groove（40）Another side suitable for reading is provided with：Left bucket another side wind-guiding inclined-plane pipe（71）, the another side of left bucket is led
Wind inclined-plane pipe（71）In the middle of outside connect left bucket another side guide duct（45）, left bucket another side wind-guiding inclined-plane pipe（71）Inclined-plane on bore
There is several left bucket another side air-guiding hole（72）；Left side bunker groove（40）The one side of bottom is provided with：Left bucket side fume trap cover（75）,
Left bucket side fume trap cover（75）Top middle is connected with left bucket side sweep-up pipe（34）；Left side bunker groove（40）The another side of bottom
Face is provided with：Left bucket another side fume trap cover（80）, left bucket another side fume trap cover（80）Top middle is connected with left bucket another side sweep-up pipe
（33）；
Described middle bunker groove（6）One side suitable for reading is provided with：Middle bucket side wind-guiding inclined-plane pipe（82）, middle bucket side wind-guiding is oblique
Facial canal（82）In the middle of outside connect in bucket side guide duct（46）, middle bucket side wind-guiding inclined-plane pipe（82）Inclined-plane on be drilled with number
Individual middle bucket side air-guiding hole（83）；Middle bunker groove（6）Another side suitable for reading is provided with：Middle bucket another side wind-guiding inclined-plane pipe
（101）, middle bucket another side wind-guiding inclined-plane pipe（101）In the middle of outside connect in struggle against another side guide duct（49）, middle bucket another side wind-guiding is oblique
Facial canal（101）Inclined-plane on be drilled with several middle bucket another side air-guiding holes（102）；Middle bunker groove（6）The one side of bottom is provided with：
Middle bucket side fume trap cover（84）, middle bucket side fume trap cover（84）Top middle is connected with middle bucket side sweep-up pipe（29）；Middle
Bunker groove（6）The another side of bottom is provided with：Middle bucket another side fume trap cover（85）, middle bucket another side fume trap cover（85）Top middle is even
It is connected to middle bucket another side sweep-up pipe（28）；
Described right side bunker groove（4）One side suitable for reading is provided with：Right bucket side wind-guiding inclined-plane pipe（100）, right bucket side wind-guiding
Inclined-plane pipe（100）In the middle of outside connect right bucket side guide duct（50）, right bucket side wind-guiding inclined-plane pipe（100）Inclined-plane on bore
There is several right bucket sides air-guiding hole（99）；Right side bunker groove（4）Another side suitable for reading is provided with：Right bucket another side wind-guiding inclined-plane pipe
（97）, right bucket another side wind-guiding inclined-plane pipe（97）In the middle of outside connect right bucket another side guide duct（53）, right bucket another side wind-guiding inclined-plane
Pipe（97）Inclined-plane on be drilled with several right bucket another side air-guiding holes（98）；Right side bunker groove（4）The one side of bottom is provided with：Right bucket
Side fume trap cover（86）, right bucket side fume trap cover（86）Top middle is connected with right bucket side sweep-up pipe（25）；Right side bunker
Groove（4）The another side of bottom is provided with：Right bucket another side fume trap cover（88）, right bucket another side fume trap cover（88）Top middle is connected with
Right bucket another side sweep-up pipe（9）；
Described steel scrap weighs, and it is including left side bunker groove（40）, middle bunker groove（6）, right side bunker groove（4）Underface right
The left side steel scrap bucket that should place（77）, middle steel scrap bucket（104）, right side steel scrap bucket（105）, and left side steel scrap bucket（77）, middle
Steel scrap bucket（104）, right side steel scrap bucket（105）Lower section flatcar（35）, flatcar（35）On be fixed with：Left bucket side locating piece
（78）, left bucket another side locating piece（81）, middle bucket side locating piece（113）, middle bucket another side locating piece（111）, right bucket side positioning
Block（110）, right bucket another side locating piece（107）With bucket post-positioning block（87）；Left side steel scrap bucket（77）It is placed on left bucket side positioning
Block（78）, left bucket another side locating piece（81）With bucket post-positioning block（87）Centre, middle steel scrap bucket（104）It is placed on middle bucket side fixed
Position block（113）, middle bucket another side locating piece（111）With bucket post-positioning block（87）Centre, right side steel scrap bucket（105）It is placed on right bucket one
Side locating piece（110）, right bucket another side locating piece（107）With bucket post-positioning block（87）Middle；Described flatcar（35）Left end be provided with
The flatcar motor driving（115）, flatcar motor（115）Connect flatcar to take at a high speed（116）, flatcar catcher at a high speed（116）Even
Connect flatcar reductor（117）, flatcar reductor（117）By the flatcar low speed catcher of lower section（118）It is simultaneously connected with the left car in side
Wheel（76）, another side left wheel（114）；The lower section of flatcar also has wheel in side（103）, wheel in another side（112）, the right car in side
Wheel（106）, the right wheel in another side（109）, side left wheel（76）, wheel in side（103）, the right wheel in side（106）It is placed on
Side track（38）On, another side left wheel（114）, wheel in another side（112）, the right wheel in another side（109）It is placed on another side line rail
（36）On；Side track（38）With another side line rail（36）Lower section electronic scale is installed（79）；Flatcar（35）Right end install
There are side backstop apparatus（89）With another side backstop apparatus（108）；
Described cleaner, it includes：Cleaner unit（15）, cleaner unit（15）Entrance point connect dust suction supervisor（14）, dust suction master
Pipe（14）Front end reconnects hopper dust suction supervisor simultaneously（11）With bucket dust suction supervisor（22）；Hopper dust suction is responsible for（11）On be provided with
Hopper electrodynamic valve（10）, hopper electrodynamic valve（10）Back segment reconnect hopper side sweep-up pipe simultaneously（3）With hopper another side dust suction
Pipe（55）；Bucket dust suction supervisor（22）On be provided with bucket the main electrodynamic valve of dust suction（24）, struggle against the main electrodynamic valve of dust suction（24）Back segment connect
Pipe is put down in bucket dust suction（31）, the flat pipe of bucket dust suction（31）On be uniformly distributed be connected to left bucket dust suction in manage（30）, middle bucket dust suction in
Pipe（26）, right bucket dust suction in manage（23）, manage in the dust suction of left bucket（30）On be provided with left bucket dust suction electrodynamic valve（32）, left bucket dust suction electricity
Dynamic valve（32）Back segment both sides reconnect left bucket side sweep-up pipe simultaneously（34）, left bucket another side sweep-up pipe（33）The other end, in
Manage in bucket dust suction（26）On be provided with middle bucket dust suction electrodynamic valve（27）, middle bucket dust suction electrodynamic valve（27）Back segment both sides connect again simultaneously
Connect middle bucket side sweep-up pipe（29）, middle bucket another side sweep-up pipe（28）The other end, in right bucket dust suction manage（23）On right bucket is installed
Dust suction electrodynamic valve（13）, right bucket dust suction electrodynamic valve（13）Back segment both sides reconnect right bucket side sweep-up pipe simultaneously（25）, right bucket
Another side sweep-up pipe（9）The other end；Described cleaner unit（15）Outfan connecting fan air inlet pipe（16）, fan inleting pipe（16）
Connecting fan（17）, blower fan（17）Connect motor catcher（18）, motor catcher（18）Reconnect motor（19）；Blower fan（17）Wind
Machine exhaust outlet（20）Connecting fan exhaust duct（21）, blower fan exhaust duct（21）On air-out house steward's electrodynamic valve is installed（12）, air-out
House steward's electrodynamic valve（12）Connect wind-guiding and put down pipe（41）, the flat pipe of wind-guiding（41）On be uniformly distributed be connected to left bucket wind-guiding in manage
（43）, middle bucket wind-guiding in manage（47）, right bucket wind-guiding in manage（52）, manage in left bucket wind-guiding（43）On be provided with left bucket wind-guiding electrodynamic valve
（44）, left bucket wind-guiding electrodynamic valve（44）Back segment both sides reconnect left bucket side guide duct simultaneously（39）, left bucket another side guide duct
（45）The other end；Manage in middle bucket wind-guiding（47）On be provided with middle bucket wind-guiding electrodynamic valve（48）, middle bucket wind-guiding electrodynamic valve（48）'s
Struggle against in reconnecting side guide duct simultaneously for back segment both sides（46）, middle bucket another side guide duct（49）The other end；Manage in right bucket wind-guiding
（52）On be provided with right bucket wind-guiding electrodynamic valve（51）, right bucket wind-guiding electrodynamic valve（51）Back segment both sides reconnect right bucket side simultaneously
Guide duct（50）, right bucket another side guide duct（53）The other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420756.1A CN104307833B (en) | 2014-08-26 | 2014-08-26 | Energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and close-range dust collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410420756.1A CN104307833B (en) | 2014-08-26 | 2014-08-26 | Energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and close-range dust collection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104307833A CN104307833A (en) | 2015-01-28 |
| CN104307833B true CN104307833B (en) | 2017-02-22 |
Family
ID=52363222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410420756.1A Expired - Fee Related CN104307833B (en) | 2014-08-26 | 2014-08-26 | Energy-saving and environment-friendly process equipment for efficient scrap steel hopper filling and close-range dust collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104307833B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0659742U (en) * | 1991-10-09 | 1994-08-19 | 日本メタル工業株式会社 | Dust collector |
| JP2008000739A (en) * | 2006-06-21 | 2008-01-10 | Shinroku Nishiyama | Local dust collection system equipped with branch dust collection function |
| CN201157837Y (en) * | 2008-03-04 | 2008-12-03 | 辽宁工程技术大学 | Wall-attachment cyclone type dust-collecting dedusting system |
| CN103658110A (en) * | 2012-09-12 | 2014-03-26 | 天津市耀强钢结构安装有限公司 | Dust collection device for steel workbench |
| KR101297206B1 (en) * | 2013-01-16 | 2013-08-16 | (주)태성산업기계 | Dust collector for molten metal pouring |
| CN203578614U (en) * | 2013-10-28 | 2014-05-07 | 河南通利机器制造有限公司 | Steel shred collecting device applied to waste steel shredder |
-
2014
- 2014-08-26 CN CN201410420756.1A patent/CN104307833B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104307833A (en) | 2015-01-28 |
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