CN117553587A - Dust collecting equipment is used in cast pig iron processing - Google Patents
Dust collecting equipment is used in cast pig iron processing Download PDFInfo
- Publication number
- CN117553587A CN117553587A CN202410029392.8A CN202410029392A CN117553587A CN 117553587 A CN117553587 A CN 117553587A CN 202410029392 A CN202410029392 A CN 202410029392A CN 117553587 A CN117553587 A CN 117553587A
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- CN
- China
- Prior art keywords
- dust
- ring
- fixedly connected
- water
- filter screen
- 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
- 239000000428 dust Substances 0.000 title claims abstract description 225
- 229910000805 Pig iron Inorganic materials 0.000 title claims abstract description 22
- 238000005266 casting Methods 0.000 claims abstract description 56
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 125
- 238000007789 sealing Methods 0.000 claims description 71
- 238000005192 partition Methods 0.000 claims description 34
- 238000007790 scraping Methods 0.000 claims description 21
- 239000002893 slag Substances 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 4
- 235000014676 Phragmites communis Nutrition 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 3
- 239000000779 smoke Substances 0.000 abstract description 59
- 239000007789 gas Substances 0.000 abstract description 12
- 239000002912 waste gas Substances 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000012634 fragment Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000012535 impurity Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
-
- 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
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
Abstract
The invention relates to the field of dust removal, in particular to dust removal equipment for cast pig iron processing. The technical problems are as follows: the high-temperature smoke gas pollutes the working environment of the workshop, influences the health of operators, and brings greater pressure to air treatment equipment of the workshop. The technical proposal is as follows: a dust removing device for casting pig iron processing comprises a base, a door-shaped frame and the like; the base is fixedly connected with a door-shaped frame. The dust hood is covered on the casting furnace, so that heat loss is effectively reduced, high-temperature smoke dust gas is effectively prevented from escaping into a workshop, the health of staff in the workshop is affected, external air enters the dust hood, the dust hood is prevented from being baked for a long time, the dust hood is also mixed with smoke dust and hot air generated by the casting furnace, the working difficulty of cooling waste gas by subsequent smoke dust collecting equipment is effectively reduced, and the working difficulty of recovering smoke dust and fragments by the subsequent smoke dust collecting equipment is reduced.
Description
Technical Field
The invention relates to the field of dust removal, in particular to dust removal equipment for cast pig iron processing.
Background
In the existing steel industry, a pig iron casting furnace is generally open, waste gas is mainly convenient to discharge and later maintenance and repair are mainly convenient, and high-temperature smoke dust waste gas is discharged at will, so that pollution to workshop working environment is easily caused, meanwhile, high-temperature smoke dust gas brings potential threat to the physical health of operators in a workshop, and high-temperature smoke dust gas also brings greater pressure to air treatment equipment in the workshop, normal use of the equipment is easily influenced at high temperature, the service life of the equipment is reduced, and the production cost of enterprises is increased.
Disclosure of Invention
The technical problems of the invention are as follows:
in order to overcome the defects that high-temperature smoke dust gas pollutes the working environment of a workshop and affects the physical health of operators, and the high-temperature smoke dust gas also brings greater pressure to air treatment equipment of the workshop, the invention provides dust removal equipment for cast pig iron processing.
The technical implementation scheme adopted by the invention is as follows:
a dust removing device for casting pig iron processing comprises a base and a door-shaped frame; the base is fixedly connected with a door-shaped frame; the dust collector also comprises a moving assembly, an exhaust pipe, a dust collecting cover, a limiting ring, a filtering assembly and a sealing assembly; the door-shaped frame is connected with a moving assembly; the door-shaped frame is connected with an exhaust pipe which is a telescopic hose; the exhaust pipe is connected with the moving assembly; the lower part of the exhaust pipe is communicated with a dust hood; the dust hood is positioned right above the casting furnace, the inner diameter of the dust hood is larger than the outer diameter of the casting furnace, and the dust hood is used for covering the casting furnace; the dust collection cover is provided with a plurality of air inlets in an annular array; the dust collection cover is connected with the moving assembly; a limiting ring is fixedly connected to the lower part of the dust collecting cover; the diameter of the limiting ring is consistent with that of the dust collection cover; an annular gap is formed between the limiting ring and the casting furnace; the moving component is used for driving the exhaust pipe to shrink so as to drive the dust hood and related parts on the dust hood to move in the vertical direction; the dust collection cover is connected with a filter assembly; the dust collection cover is connected with a sealing component; the sealing component is connected with the filtering component; the filter assembly is used for filtering the air entering the air inlet hole; the sealing component is used for plugging the annular gap between the limiting ring and the casting furnace.
As an improvement of the scheme, the moving component comprises an electric sliding rail, an electric sliding block and a connecting plate; the door-shaped frame is provided with a left electric sliding rail and a right electric sliding rail; each electric sliding rail is connected with an electric sliding block in a sliding way; each electric sliding block is fixedly connected with a connecting plate; the two connecting plates are fixedly connected with the lower part of the exhaust pipe together; the two connecting plates are fixedly connected with the dust collecting cover.
As an improvement of the scheme, the filtering component comprises a fixed ring, a first filter screen and a movable ring; a fixing ring is fixedly connected outside the dust collecting cover; the fixed ring is connected with a first filter screen which is a flexible net; the first filter screen corresponds to the air inlet and is used for covering the air inlet; a movable ring is fixedly connected to the lower part of the filter screen; the movable ring is connected with the dust collecting cover in a sliding way.
As an improvement of the scheme, the sealing component comprises an electric actuator, a poking piece, a sealing strip, a ball head rod and an elastic piece I; a plurality of electric actuators are arranged outside the dust collection cover; all the telescopic parts of the electric actuator are fixedly connected with a movable ring together; the movable ring is fixedly connected with a plurality of poking sheets in an annular array; a movable groove is formed in the limiting ring; the limiting ring is movably connected with a plurality of sealing strips; all sealing strips are positioned in the movable groove, and all sealing strips jointly enclose a circular ring; the limiting ring is connected with a plurality of ball head rods in a sliding way; each ball head rod is fixedly connected with a sealing strip; each ball rod is matched with one poking piece, and the poking pieces are used for pressing the ball rods into the limiting rings; each ball head rod is fixedly connected with an elastic piece I, and each ball head rod passes through the middle of one elastic piece I; all elastic pieces are fixedly connected with the limiting ring.
As an improvement of the scheme, a detachable refractory material layer is laid on the upper surface of the base.
As an improvement of the scheme, the poking plate is an arc-shaped reed.
As an improvement of the scheme, the device also comprises a baffle plate, a vertical cylinder and a communicating pipe; the inner surface of the dust collection cover is fixedly connected with a baffle plate; the upper surface of the partition board is fixedly connected with a plurality of vertical cylinders, and a plurality of air holes are formed in the lower parts of the vertical cylinders; the partition board is communicated with a plurality of communicating pipes; the outer diameter of the communicating pipe is smaller than the inner diameter of the vertical cylinder; each communicating pipe is positioned in one vertical cylinder, and the top of the communicating pipe is not contacted with the inner top wall of the vertical cylinder.
As an improvement of the scheme, the water inlet pipe and the water outlet pipe are also included; the side wall of the dust collecting cover is provided with an annular cavity; a plurality of drain holes are arranged between the annular cavity and the inner wall of the dust hood; the inside of the partition plate is hollowed, the upper part of the partition plate is provided with a plurality of water distribution holes, and the water distribution holes are annularly arrayed around each vertical cylinder; the partition board is communicated with a water inlet pipe; the annular cavity is communicated with a water outlet pipe.
As an improvement of the scheme, the filter screen II is also included; the inner wall of the dust collecting cover is fixedly connected with a second filter screen; the second filter screen corresponds to the drain hole in position, and the second filter screen is used for covering the drain hole.
As an improvement of the scheme, the device also comprises a slag scraping ring, a pull rope, a water sealing ring, a piston, a support plate and a second elastic piece; the inner side of the second filter screen is connected with a slag scraping ring in a sliding manner; the slag scraping ring is connected with a plurality of pull ropes; all the pull ropes are connected with the dust hood together; the dust hood is communicated with a cleaning port; a water sealing ring is connected in the annular cavity in a sliding way; all the pull ropes are connected with the water sealing ring through guide wheels; the water sealing ring is connected with the water outlet pipe in a sliding way; the water sealing ring is connected with a plurality of pistons in a sliding way; a plurality of support plates are fixedly connected in the annular cavity; each support plate is contacted with one piston, the water sealing ring drives the piston to move downwards, the support plates support the piston, and the piston and the water sealing ring relatively move; a plurality of second elastic pieces are connected below the slag scraping ring; all the second elastic parts are connected with the inner wall of the dust collection cover in a tilting way.
The beneficial effects are that: 1. the dust hood is covered on the casting furnace, so that heat loss is effectively reduced, energy is saved, high-temperature smoke dust gas is effectively prevented from escaping into a workshop, the physical health of workers in the workshop is affected, external air enters the dust hood, the dust hood is cooled, and in the air flowing process, the external air is mixed with smoke dust hot air generated by the casting furnace to cool the smoke dust hot air, so that the dust hood is prevented from being baked for a long time, the service life of the dust hood is reduced, the cooling difficulty of subsequent smoke dust collecting equipment to waste gas is effectively reduced, and the recycling difficulty of the subsequent smoke dust collecting equipment to smoke dust chips is reduced.
2. All sealing strips enclose a ring to seal the gap between the limiting ring and the casting furnace, at the moment, the outside air can only enter the dust collecting cover through the air inlet, and when the outside air passes through the filter screen, the filter screen filters the impurity, dust and impurity in the outside air, so that the dust and impurity are effectively prevented from entering the casting furnace to pollute molten iron in the casting furnace.
3. Through the injection circulating water in between dust cage and the baffle, with high temperature smoke and dust guide entering circulating water again, cool down high temperature smoke and dust to separate the smoke and dust piece in the high temperature smoke and dust, the smoke and dust piece stays in the circulating water, is convenient for collect the smoke and dust piece.
4. Through utilizing the flow of circulating water, realize scraping the sediment ring and periodically scrape the motion to filter screen two automatically, strike off the smoke and dust piece of filter screen two interception for filter efficiency of filter screen two resumes.
Drawings
FIG. 1 is a schematic perspective view of a dust removing apparatus for processing cast pig iron according to the present invention;
FIG. 2 is a sectional view of a dust removing apparatus for processing cast pig iron according to the present invention;
FIG. 3 is a schematic view of the installation position of the first filter screen of the present invention;
FIG. 4 is an enlarged schematic view of the present invention at X in FIG. 3;
FIG. 5 is a diagram showing a partition plate setting position of the present invention;
FIG. 6 is a schematic view of the internal structure of the inventive cartridge;
FIG. 7 is a schematic view of the installation position of the slag scraping ring of the invention;
fig. 8 is a schematic view of a second installation position of the elastic member of the present invention.
Reference numerals in the figures: the device comprises a 1-base, a 2-door-shaped frame, a 3-electric sliding rail, a 4-electric sliding block, a 5-connecting plate, a 6-exhaust pipe, a 7-dust collecting cover, an 8-limiting ring, a 101-fixed ring, a 102-filter screen I, a 103-movable ring, a 7001-air inlet, a 201-electric actuator, a 202-poking piece, a 203-sealing strip, a 204-ball head rod, a 205-elastic piece I, a 8001-movable groove, a 301-partition plate, a 302-vertical cylinder, a 303-communicating pipe, a 7002-water draining hole, a 401-filter screen II, a 402-water inlet pipe, a 403-water outlet pipe, a 7003-annular cavity, a 30101-water distributing hole, a 501-slag scraping ring, a 502-stay rope, a 503-water sealing ring, a 504-piston, a 505-supporting plate, a 506-elastic piece II and a 7004-cleaning port.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A dust removing device for casting pig iron processing, which comprises a base 1 and a door-shaped frame 2 according to the figures 1-5; the base 1 is connected with a door-shaped frame 2 through bolts;
the dust collector also comprises a moving component, an exhaust pipe 6, a dust collecting cover 7, a limiting ring 8, a filtering component and a sealing component; the door-shaped frame 2 is connected with a moving component; the door-shaped frame 2 is connected with an exhaust pipe 6, and the exhaust pipe 6 is a telescopic hose; the exhaust pipe 6 is connected with the moving assembly; the lower part of the exhaust pipe 6 is communicated with a dust hood 7; the dust hood 7 is positioned right above the casting furnace, the inner diameter of the dust hood 7 is larger than the outer diameter of the casting furnace, and the dust hood 7 is used for covering the casting furnace; a plurality of air inlets 7001 are formed in the dust hood 7 in an annular array; the dust hood 7 is connected with the moving assembly; a limiting ring 8 is welded at the lower part of the dust hood 7; the diameter of the limiting ring 8 is consistent with that of the dust hood 7; an annular gap is formed between the limiting ring 8 and the casting furnace; the moving component is used for driving the exhaust pipe 6 to shrink so as to drive the dust hood 7 and related parts on the dust hood to move in the vertical direction; the dust hood 7 is connected with a filter assembly; the dust hood 7 is connected with a sealing component; the sealing component is connected with the filtering component; the filter assembly is used for filtering air entering the air inlet 7001; the sealing assembly is used for plugging the annular gap between the limiting ring 8 and the casting furnace.
The moving assembly comprises an electric sliding rail 3, an electric sliding block 4 and a connecting plate 5; the door-shaped frame 2 is provided with a left electric sliding rail 3 and a right electric sliding rail 3; each electric sliding rail 3 is connected with an electric sliding block 4 in a sliding way; each electric sliding block 4 is fixedly connected with a connecting plate 5; the two connecting plates 5 are fixedly connected with the lower part of the exhaust pipe 6; the two connecting plates 5 are fixedly connected with the dust hood 7.
1-2 and 3, the filter assembly includes a stationary ring 101, a first screen 102, and a movable ring 103; a fixed ring 101 is fixedly connected outside the dust hood 7; the fixed ring 101 is connected with a first filter screen 102, and the first filter screen 102 is a flexible net; the first filter screen 102 corresponds to the air inlet 7001 in position and is used for covering the air inlet 7001; the lower part of the first filter screen 102 is fixedly connected with a movable ring 103; the movable ring 103 is slidably connected with the dust hood 7.
Referring to fig. 1-2 and 3-4, the seal assembly includes an electric actuator 201, a pulling piece 202, a sealing strip 203, a ball head rod 204 and a first elastic member 205; two electric actuators 201 distributed left and right are arranged outside the dust hood 7; the electric actuator 201 is an electric push rod; all the telescopic parts of the electric actuator 201 are fixedly connected with the movable ring 103; the movable ring 103 is fixedly connected with a plurality of poking sheets 202 in an annular array; a movable groove 8001 is formed in the limiting ring 8; the limiting ring 8 is movably connected with a plurality of sealing strips 203; all sealing strips 203 are positioned in the movable groove 8001, and all sealing strips 203 jointly enclose a circular ring; the limiting ring 8 is connected with a plurality of ball head rods 204 in a sliding way; each ball head rod 204 is fixedly connected with a sealing strip 203; each ball head rod 204 is matched with one shifting piece 202, and the shifting pieces 202 are used for pressing the ball head rods 204 into the limiting rings 8; each ball rod 204 is fixedly connected with an elastic piece I205, and each ball rod 204 passes through the middle of one elastic piece I205; all the first elastic pieces 205 are fixedly connected with the limiting ring 8.
The upper surface of the base 1 is coated with a detachable refractory material layer.
The paddle 202 is an arcuate reed.
The specific working principle is as follows:
the exhaust pipe 6 is communicated with an external smoke dust collecting device to form an opening of the casting furnace;
firstly, two electric sliding blocks 4 are controlled to move downwards, the connecting plate 5 and corresponding parts on the connecting plate are synchronously driven to move downwards until the bottom of the limiting ring 8 is lower than the top of the casting furnace, then the casting furnace is controlled to heat, meanwhile, external smoke dust collecting equipment pumps out air in the dust collecting cover 7 through the exhaust pipe 6, high-temperature smoke dust generated in the casting furnace is pumped away, the dust collecting cover 7 is covered on the casting furnace, heat dissipation is effectively reduced, energy is saved, high-temperature smoke dust gas is effectively prevented from being dissipated into a workshop, the health of staff in the workshop is affected, and because the inner diameters of the dust collecting cover 7 and the limiting ring 8 are larger than that of the casting furnace, when the air is pumped from the dust collecting cover 7, external air is adhered to the inner wall of the dust collecting cover 7, enters the dust collecting cover 7, the dust collecting cover 7 is cooled, then the dust collecting device is mixed with smoke dust generated by the casting furnace, the smoke dust is cooled, the high-temperature smoke dust gas is prevented from being baked on the dust collecting cover 7 for a long time, the service life of the dust collecting cover 7 is reduced, the smoke dust gas is cooled, and the dust gas is also cooled, and the work chips of the subsequent dust collecting equipment are effectively reduced.
When the high-temperature smoke dust generated by the casting furnace is pumped away, air is simultaneously extracted from the outside and mixed with the high-temperature smoke dust, the temperature of the high-temperature smoke dust is reduced, and when the outside air enters the dust collection cover 7, impurities in the outside air are easily brought into the dust collection cover 7, dust impurities fall into the casting furnace, pollution is easily caused to the casting furnace, at the moment, two electric actuators 201 are controlled to stretch, the movable ring 103 is synchronously driven to slide downwards, the first filter screen 102 is pulled away, the part covered by the air inlet 7001 is covered, the movable ring 103 also drives all the stirring sheets 202 to move downwards, the stirring sheets 202 are contacted with the ball head rod 204, the stirring sheets 202 are effectively prevented from being clamped by the ball head rod 204, the ball head rod 204 cannot be pressed into the limit ring 8, and all the elastic pieces 205 are compressed, meanwhile, the ball head rod 204 pushes corresponding sealing strips 203 out of the movable grooves 8001, the sealing strips 203 are contacted with the outer surfaces of the casting furnace, the movable ring 103 are synchronously driven to slide, the first filter screen 102 is pulled out, and the dust can only be prevented from being blown into the clearance between the air in the casting furnace, and the filter screen 102 is effectively expanded, and the dust can be prevented from being blown into the filter screen 102 through the filter screen 102 when the dust is effectively contracted, and the dust can be prevented from entering the filter screen 102 through the air inlet 102, and the filter screen 102 is effectively expanded, and the dust is prevented from being blown into the filter dust in the filter screen 102 when the filter screen is blown into the air by the filter screen through the air, and the filter dust is more dust is polluted by the filter dust is filled by the filter dust-filled by the filter dust and is filled;
meanwhile, the air inlet 7001 is arranged at a position higher than the casting furnace, and external air enters the dust collection cover 7 and cannot pass through the casting furnace, so that heat of the furnace wall of the casting furnace is prevented from being taken away, at the moment, the external air enters the dust collection cover 7 and is directly and uniformly mixed with smoke and dust hot air generated by the casting furnace, and the external air is not blocked by the casting furnace, so that the external air and the smoke and dust hot air generated by the casting furnace are more uniformly mixed, and the temperature of the smoke and dust hot air is reduced more uniformly;
then when pouring is needed, only the dust hood 7 is controlled to move upwards, so that the dust hood 7 is far away from the casting furnace, the casting furnace can pour out molten iron in the dust hood 7 to cast pig iron, after pouring is finished, the casting furnace still needs to be insulated with heat of the casting furnace, the dust hood 7 is controlled to reset, external smoke dust collecting equipment continues to exhaust, only the electric actuator 201 is controlled to shrink at the moment, the movable ring 103 is synchronously driven to move upwards, the movable ring 103 seals an air inlet 7001, meanwhile, the elastic piece 205 is restored, the elastic piece 205 drives the ball rod 204 and corresponding parts on the ball rod to reset, the sealing strip 203 is retracted into the movable groove 8001, an annular gap between the limiting ring 8 and the casting furnace reappears, at the moment, outside air enters the dust hood 7 through the annular gap between the limiting ring 8 and the casting furnace, outside air passes through the casting furnace to cool the upper part of the casting furnace, the part of the casting furnace is effectively prevented from entering the mould at first time when pouring next time, the part of molten iron which is not reflowed is not identical with the molten iron, the cast iron is cooled down, the casting furnace is prevented from being cooled down, and the defect that the casting is not finished, and the sealing strip 203 is completely cooled down, and the sealing strip is prevented from polluting the outside air after the sealing ring is completely, and the sealing strip is sealed, and the gap is prevented from being greatly polluted.
Example 2
On the basis of the 1 st embodiment, according to fig. 1-2 and 5-6, a partition 301, a vertical cylinder 302 and a communicating pipe 303 are also included; the inner surface of the dust hood 7 is welded with a baffle 301; the upper surface of the partition 301 is connected with a plurality of vertical cylinders 302 by bolts, and a plurality of air holes are formed in the lower parts of the vertical cylinders 302; the partition 301 is communicated with a plurality of communicating pipes 303; the outside diameter of the communication pipe 303 is smaller than the inside diameter of the stem 302; each of the communicating pipes 303 is located in one of the columns 302, and the top of the communicating pipe 303 is not in contact with the inner top wall of the column 302.
According to fig. 1-2 and 7, there is also included a water inlet pipe 402 and a water outlet pipe 403; the side wall of the dust hood 7 is provided with an annular cavity 7003; a plurality of drain holes 7002 are arranged between the annular cavity 7003 and the inner wall of the dust collection cover 7; the partition 301 is hollowed out, the upper part of the partition is provided with a plurality of water distribution holes 30101, and the water distribution holes 30101 are annularly arrayed around each vertical cylinder 302; the partition 301 is communicated with a water inlet pipe 402; the annular cavity 7003 is communicated with a water outlet tube 403.
Communicating the inlet pipe 402 with the outlet of the water circulation system; the water outlet pipe 403 is communicated with a water inlet of the water circulation system;
the temperature of the gas pumped from the dust hood 7 is still higher, the recovery difficulty of the dust collection equipment on the high-temperature dust is higher, at the moment, a partition 301 is arranged in the dust hood 7, a water circulation system injects water into the partition 301 through a water inlet pipe 402, the partition 301 is injected into the upper part of the partition 301 through a water distribution hole 30101 on the partition 301, after the liquid level of the circulating water on the upper part of the partition 301 reaches the position of a water drain hole 7002, the circulating water enters an annular cavity 7003 through the water drain hole 7002, then the water circulation system pumps out the water in the annular cavity 7003 through a water outlet pipe 403, at the moment, the circulating flow of the water in the dust hood 7 can be finished, and the dust and hot air flow below the partition 301 begins to cool the dust and hot air flow initially when contacting the partition 301, so that the subsequent recovery of dust and hot air flow is reduced conveniently;
through the flow of the circulating water, when the outside smoke dust collecting equipment is matched to pump out the air in the dust hood 7 through the exhaust pipe 6, at the moment, the air between the dust hood 7 and the partition 301 is pumped out, the cavity between the dust hood 7 and the partition 301 is negative pressure, as shown in fig. 6, then the air below the partition 301 enters the vertical cylinder 302 through the communicating pipe 303, then the smoke dust hot air enters the circulating water between the dust hood 7 and the partition 301 through the air hole at the lower part of the vertical cylinder 302, the circulating water cools the smoke dust hot air again, and the circulating water also separates the smoke dust chips in the smoke dust hot air, the smoke dust chips are left in the circulating water, the air floats to the liquid level of the circulating water and is discharged through the exhaust pipe 6, so that the working difficulty of the smoke dust collecting equipment on the treatment of the smoke dust hot air is effectively reduced, and the smoke dust chips are easy to collect from the circulating water between the dust hood 7 and the partition 301;
the water distribution holes 30101 are formed around the vertical cylinder 302, when cooling water enters between the dust collection cover 7 and the partition 301, the cooling water is contacted with smoke and dust hot air exhausted by the vertical cylinder 302, the temperature of the smoke and dust hot air is reduced, meanwhile, water sprayed from the water distribution holes 30101 blows away smoke and dust chips fused into the water upwards, so that the smoke and dust chips fused into the water float to the water surface, then enter the annular cavity 7003 along with the water through the water drainage holes 7002, and then are pumped out to water circulation equipment through the water outlet pipe 403, the smoke and dust chips in the water are filtered out and collected, and after the water is subjected to cooling treatment, the water can be pumped into the water inlet pipe 402 again to enter circulation.
Example 3
On the basis of the 2 nd embodiment, a second filter screen 401 is also included; the inner wall of the dust hood 7 is fixedly connected with a second filter screen 401; the second filter 401 corresponds to the drain hole 7002 in position, and the second filter 401 is used for covering the drain hole 7002.
According to fig. 1-2 and fig. 7-8, the device also comprises a slag scraping ring 501, a pull rope 502, a water sealing ring 503, a piston 504, a support plate 505 and a second elastic piece 506; the inner side of the second filter screen 401 is connected with a slag scraping ring 501 in a sliding manner; the slag scraping ring 501 is connected with a plurality of pull ropes 502; all the stay cords 502 are connected with the dust hood 7 together; the dust hood 7 is communicated with a cleaning opening 7004; the annular cavity 7003 is connected with a water sealing ring 503 in a sliding way; all the pull ropes 502 are connected with a water sealing ring 503 through guide wheels; the water sealing ring 503 is connected with the water outlet pipe 403 in a sliding way; a plurality of pistons 504 are slidably connected to the water seal ring 503; a plurality of support plates 505 are welded in the annular cavity 7003; each support plate 505 is contacted with one piston 504, the water sealing ring 503 drives the piston 504 to move downwards, the support plates 505 support the piston 504, and the piston 504 and the water sealing ring 503 are relatively displaced; a plurality of second elastic pieces 506 are connected below the slag scraping ring 501; all the second elastic members 506 are connected to the inner wall of the dust collecting cover 7 in a common inclined manner.
According to the above embodiment, the smoke and dust chips enter the annular cavity 7003 through the drain hole 7002, the smoke and dust chips easily block the drain hole 7002, the process of water circulation is affected, at this time, the second filter screen 401 is arranged at the drain hole 7002 and used for intercepting the smoke and dust chips, the treatment step of the water circulation device on circulating water is reduced, so that the smoke and dust chips are remained between the dust collecting cover 7 and the partition 301, the circulating water between the dust collecting cover 7 and the partition 301 enters the annular cavity 7003 through the second filter screen 401 and the drain hole 7002, the smoke and dust chips in the circulating water are intercepted by the second filter screen 401, as shown in fig. 7, then the circulating water entering the annular cavity 7003 is intercepted by the water sealing ring 503, as the water quantity on the water sealing ring 503 increases, the water sealing ring 503 slides downwards, the slag scraping ring 501 is pulled upwards by the pull rope 502, all the second elastic pieces 506 are stretched, and even if the second elastic pieces 506 are stretched, the smoke and dust chips do not enter the second elastic pieces 506, the second filter screen 506 are affected, and the second filter screen 401 is scraped off, and the second filter screen 401 is restored when the second filter screen 401 is scraped up, and the second filter chips are scraped;
when the piston 504 contacts the corresponding support plate 505, the piston 504 is lifted upwards, the upper part of the piston 504 is separated from the water sealing ring 503, as shown in fig. 8, water on the water sealing ring 503 flows into the lower part of the water sealing ring 503 through a gap between the piston 504 and the water sealing ring 503, then the circulating water is pumped out through the water outlet pipe 403, and water prevented on the water sealing ring 503 is quickly lost, wherein the flow rate of water from the gap between the piston 504 and the water sealing ring 503 is greater than the flow rate of water entering the annular cavity 7003 through the water drain 7002, the elastic element II 506 is restored, the slag scraping ring 501 is pulled downwards, the water sealing ring 503 is synchronously driven to move upwards, and when the slag scraping ring 501 is retracted into the circulating water, the impurities are washed out from the slag scraping ring 501, so as to avoid the impurities remained in the slag scraping ring 501, when the slag scraping ring 501 scrapes the filter screen II 401, the circulating water is continuously lost after the water sealing ring 503 is reset, the water sealing ring 503 is continuously moved downwards, thereby realizing that the flow rate of water is greater than the flow rate of water entering the annular cavity 7003 through the water draining hole 7002, and the water collecting pipe is completely, and finally, the dust collecting pipe is completely cleaned by the water collecting the dust is completely, and the dust is completely removed by the water collecting the filter pipe is completely, and the water collecting dust is completely, and the dust is completely removed by the water collecting the filter film is completely, and the dust is completely removed by the water, and the filter film is completely, and the dust is completely removed.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (10)
1. The dust removing equipment for casting pig iron processing comprises a base (1) and a door-shaped frame (2); the base (1) is fixedly connected with a door-shaped frame (2); the method is characterized in that: the dust collector also comprises a moving assembly, an exhaust pipe (6), a dust collecting cover (7), a limiting ring (8), a filtering assembly and a sealing assembly; the door-shaped frame (2) is connected with a moving component; the door-shaped frame (2) is connected with an exhaust pipe (6), and the exhaust pipe (6) is a telescopic hose; the exhaust pipe (6) is connected with the moving assembly; the lower part of the exhaust pipe (6) is communicated with a dust hood (7); the dust collection cover (7) is positioned right above the casting furnace, the inner diameter of the dust collection cover (7) is larger than the outer diameter of the casting furnace, and the dust collection cover (7) is used for covering the casting furnace; a plurality of air inlets (7001) are formed in the dust collection cover (7) in an annular array; the dust collection cover (7) is connected with the moving assembly; a limiting ring (8) is fixedly connected at the lower part of the dust hood (7); the diameter of the limiting ring (8) is consistent with that of the dust collecting cover (7); an annular gap is formed between the limiting ring (8) and the casting furnace; the moving component is used for driving the exhaust pipe (6) to shrink so as to drive the dust hood (7) and related parts on the dust hood to move in the vertical direction; the dust collection cover (7) is connected with a filter component; the dust collection cover (7) is connected with a sealing component; the sealing component is connected with the filtering component; the filter component is used for filtering air entering the air inlet hole (7001); the sealing component is used for plugging an annular gap between the limiting ring (8) and the casting furnace.
2. A dust removing apparatus for cast pig iron processing as set forth in claim 1, characterized in that: the moving assembly comprises an electric sliding rail (3), an electric sliding block (4) and a connecting plate (5); the door-shaped frame (2) is provided with a left electric sliding rail (3) and a right electric sliding rail (3); each electric sliding rail (3) is connected with an electric sliding block (4) in a sliding way; each electric sliding block (4) is fixedly connected with a connecting plate (5); the two connecting plates (5) are fixedly connected with the lower part of the exhaust pipe (6) together; the two connecting plates (5) are fixedly connected with the dust hood (7) together.
3. A dust removing apparatus for cast pig iron processing as set forth in claim 1, characterized in that: the filtering component comprises a fixed ring (101), a first filter screen (102) and a movable ring (103); a fixed ring (101) is fixedly connected outside the dust hood (7); the fixed ring (101) is connected with a first filter screen (102), and the first filter screen (102) is a flexible net; the first filter screen (102) is positioned corresponding to the air inlet hole (7001) and is used for covering the air inlet hole (7001); the lower part of the first filter screen (102) is fixedly connected with a movable ring (103); the movable ring (103) is connected with the dust collecting cover (7) in a sliding way.
4. A dust removing apparatus for cast pig iron processing as set forth in claim 1, characterized in that: the sealing assembly comprises an electric actuator (201), a poking piece (202), a sealing strip (203), a ball rod (204) and an elastic piece I (205); a plurality of electric actuators (201) are arranged outside the dust collection cover (7); all the telescopic parts of the electric actuators (201) are fixedly connected with the movable ring (103) together; the movable ring (103) is fixedly connected with a plurality of poking sheets (202) in an annular array; a movable groove (8001) is formed in the limiting ring (8); the limiting ring (8) is movably connected with a plurality of sealing strips (203); all sealing strips (203) are positioned in the movable groove (8001), and all sealing strips (203) jointly enclose a circular ring; the limiting ring (8) is connected with a plurality of ball head rods (204) in a sliding way; each ball head rod (204) is fixedly connected with a sealing strip (203); each ball head rod (204) is matched with one shifting piece (202), and the shifting pieces (202) are used for pressing the ball head rods (204) into the limiting rings (8); each ball head rod (204) is fixedly connected with an elastic piece I (205), and each ball head rod (204) passes through the middle of one elastic piece I (205); all the first elastic pieces (205) are fixedly connected with the limiting ring (8) together.
5. A dust removing apparatus for cast pig iron processing as set forth in claim 1, characterized in that: the upper surface of the base (1) is coated with a detachable refractory material layer.
6. A dust removing apparatus for cast pig iron processing as set forth in claim 4, wherein: the poking piece (202) is an arc reed.
7. A dust removing apparatus for cast pig iron processing according to any one of claims 1 to 6, characterized in that: the device also comprises a baffle plate (301), a vertical cylinder (302) and a communicating pipe (303); the inner surface of the dust hood (7) is fixedly connected with a baffle plate (301); the upper surface of the partition plate (301) is fixedly connected with a plurality of vertical cylinders (302), and a plurality of air holes are formed in the lower parts of the vertical cylinders (302); the partition board (301) is communicated with a plurality of communicating pipes (303); the outer diameter of the communicating pipe (303) is smaller than the inner diameter of the vertical cylinder (302); each communicating pipe (303) is positioned in one vertical cylinder (302), and the top of each communicating pipe (303) is not contacted with the inner top wall of the vertical cylinder (302).
8. A dust removing apparatus for cast pig iron processing as set forth in claim 7, characterized in that: the water inlet pipe (402) and the water outlet pipe (403) are also included; the side wall of the dust collection cover (7) is provided with an annular cavity (7003); a plurality of drain holes (7002) are arranged between the annular cavity (7003) and the inner wall of the dust collection cover (7); the inside of the partition plate (301) is hollowed, the upper part of the partition plate is provided with a plurality of water distribution holes (30101), and the water distribution holes (30101) are annularly arrayed around each vertical cylinder (302); the partition board (301) is communicated with a water inlet pipe (402); the annular cavity (7003) is communicated with a water outlet pipe (403).
9. A dust removing apparatus for cast pig iron processing as set forth in claim 8, characterized in that: the filter screen II (401) is also included; a second filter screen (401) is fixedly connected on the inner wall of the dust collection cover (7); the second filter screen (401) corresponds to the drain hole (7002), and the second filter screen (401) is used for covering the drain hole (7002).
10. A dust removing apparatus for cast pig iron processing as set forth in claim 9, characterized in that: the device also comprises a slag scraping ring (501), a pull rope (502), a water sealing ring (503), a piston (504), a support plate (505) and a second elastic piece (506); the inner side of the second filter screen (401) is connected with a slag scraping ring (501) in a sliding manner; the slag scraping ring (501) is connected with a plurality of pull ropes (502); all the pull ropes (502) are connected with the dust hood (7) together; the dust collection cover (7) is communicated with a cleaning opening (7004); a water sealing ring (503) is connected in a sliding way in the annular cavity (7003); all the pull ropes (502) are connected with a water sealing ring (503) through guide wheels; the water sealing ring (503) is connected with the water outlet pipe (403) in a sliding way; the water sealing ring (503) is connected with a plurality of pistons (504) in a sliding way; a plurality of support plates (505) are fixedly connected in the annular cavity (7003); each support plate (505) is contacted with one piston (504), the water sealing ring (503) drives the piston (504) to move downwards, the support plates (505) support the piston (504), and the piston (504) and the water sealing ring (503) are relatively displaced; a plurality of second elastic pieces (506) are connected below the slag scraping ring (501); all the second elastic pieces (506) are connected with the inner wall of the dust collection cover (7) in a common inclined way.
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| CN202410029392.8A CN117553587B (en) | 2024-01-09 | 2024-01-09 | Dust collecting equipment is used in cast pig iron processing |
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| CN202410029392.8A CN117553587B (en) | 2024-01-09 | 2024-01-09 | Dust collecting equipment is used in cast pig iron processing |
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| CN117553587B CN117553587B (en) | 2024-03-19 |
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| CN219161014U (en) * | 2022-12-29 | 2023-06-09 | 成都桐林铸造实业有限公司 | Smoking device for dust removal equipment |
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| EP0504664A1 (en) * | 1991-03-21 | 1992-09-23 | STASCHEL INDUSTRIE-SERVICE GmbH | Device for the dust-free cutting of large pig-iron pieces |
| US5281246A (en) * | 1992-12-23 | 1994-01-25 | Metal-Fab, Inc. | Air cleaner assembly |
| US20070113839A1 (en) * | 2005-11-21 | 2007-05-24 | Acxing Industrial Co., Ltd. | Air curtain-assisted exhaust method and device thereof |
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| CN117553587B (en) | 2024-03-19 |
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