CN109735350B - Coke oven coal-charging smoke dust collecting device and method thereof - Google Patents
Coke oven coal-charging smoke dust collecting device and method thereof Download PDFInfo
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- CN109735350B CN109735350B CN201910142967.6A CN201910142967A CN109735350B CN 109735350 B CN109735350 B CN 109735350B CN 201910142967 A CN201910142967 A CN 201910142967A CN 109735350 B CN109735350 B CN 109735350B
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- 239000000428 dust Substances 0.000 title claims abstract description 180
- 239000000779 smoke Substances 0.000 title claims abstract description 153
- 239000000571 coke Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000003763 carbonization Methods 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000003860 storage Methods 0.000 claims abstract description 18
- 239000003245 coal Substances 0.000 claims description 53
- 238000007789 sealing Methods 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 3
- 239000010425 asbestos Substances 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 claims description 3
- 229910052895 riebeckite Inorganic materials 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract description 2
- 239000003517 fume Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003500 flue dust Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- Coke Industry (AREA)
Abstract
The invention discloses a coke oven coal-charging smoke dust collecting device and a method thereof. Each furnace door type smoke dust gathering mechanism comprises a square component, a supporting wheel group and a push-pull device. The square component is provided with a joint surface matched with the furnace column, and the push-pull device stretches the telescopic end of the push-pull device to drive the square component to be close to the carbonization chamber, so that the joint surface is attached to the furnace column. The smoke dust collecting mechanism comprises a smoke dust collecting cover, a collecting pipe, a lump-shaped shutter and a dust removing dry pipe. The smoke dust collecting cover, the furnace column and the furnace wall enclose a closed space to absorb smoke dust. The collecting pipe receives the smoke dust of the smoke dust collecting cover and conveys the smoke dust to the dust removing main pipe. The lump-shaped shutter is arranged on the top end of the collecting pipe and is lifted to conduct or separate the collecting pipe and the dust removing main pipe. The invention increases the storage space of the smoke dust, gathers and concentrates the smoke dust, and increases the collection range of the smoke dust, thereby reducing the influence of the smoke dust on the environment.
Description
Technical Field
The invention relates to a smoke dust collecting device in the technical field of coking production equipment, in particular to a coke oven coal-charging smoke dust collecting device and a coke oven coal-charging smoke dust collecting method.
Background
In the coking production process, different coals are proportioned, mixed and crushed and then conveyed to a coal tower through a belt conveyor, the coals are placed into a tamping coal box of a coal charging car through a discharging machine at the bottom of the coal tower, the coals are layered and tamping by the tamping machine while being placed, and the tamping compacted coals are called coal cakes. When the coke oven needs to be charged with coal, the furnace door of the carbonization chamber at the side of the coke oven is taken off and removed, the coal charging car is moved, the center of the coal cake box of the coal charging car is aligned with the center of the carbonization chamber, the wall plate for fixing the coal cake is separated from the coal cake, the coal cake pushing mechanism on the coal charging car pushes the coal cake into the carbonization chamber of the coke oven, and the furnace door is sealed after the coal charging is finished.
When coal is charged, smoke dust is instantaneously generated due to the fact that coal cakes meet a high-temperature furnace wall at 1200 ℃, and the existing smoke dust collecting method comprises the following steps: (1) Smoke dust is pumped into adjacent carbonization chambers by adopting a furnace top smoke elimination vehicle for combustion; (2) Spraying high-pressure ammonia water in the bridge pipe of the coke oven, forming negative pressure around the high-pressure ammonia water when spraying at high speed, and sucking smoke dust into the gas collecting pipe so as to eliminate the smoke dust; (3) The top of each carbonization chamber at the coke oven side is provided with a corresponding smoke guide cover, and smoke dust which drifts out of the carbonization chambers is firstly sucked into the smoke guide cover during coal charging, and then sequentially enters a coal charging dust removing dry pipe, a ground dust removing station pretreatment device, a coal charging dust removing induced draft fan and a cloth bag dust remover for dust collection and discharge. In order to treat the smoke dust generated by coal charging, a plurality of smoke dust collecting and treating methods are generally used simultaneously, but the smoke guide cover is arranged between two furnace columns, so that a certain gap exists between the smoke guide cover and the furnace columns and between the smoke guide cover and the furnace wall, the coal charging smoke dust is prevented from escaping from the gap, and meanwhile, part of the smoke dust can float out of the collecting range of the smoke guide cover and float away, so that the environment is influenced.
Disclosure of Invention
Aiming at the prior art, the invention provides a device and a method for collecting coal-charging smoke dust of a coke oven, which solve the problems that the existing smoke dust collecting device cannot avoid the escape of the coal-charging smoke dust, and part of smoke dust can float out of the collecting range of a smoke guiding cover and float away to influence the environment.
The invention is realized by adopting the following technical scheme: a coke oven coal-charging dust collection device for collecting dust generated when a coal-charging car charges coal into a carbonization chamber, comprising:
the two furnace door type smoke dust gathering mechanisms are respectively arranged at two sides of the front end of the coal charging vehicle and are symmetrically arranged; each furnace door type smoke dust gathering mechanism comprises a column type square component, at least one riding wheel set and a push-pull device; the two square components correspond to the two furnace columns at the two sides of the carbonization chamber respectively, and each square component is provided with a joint surface matched with the corresponding furnace column; the riding wheel set comprises a first guide rail, a supporting rod and at least one towing wheel; the first guide rail is arranged on the brackets at two sides of the coal charging car and is vertical to the joint surface; the tug is arranged on the first guide rail and is fixedly connected with the square component through the support rod; the push-pull device is fixed on the bracket and is provided with a telescopic end connected with the square component; the pushing and pulling device drives the square member to be close to the carbonization chamber by stretching the stretching end of the pushing and pulling device, so that the bonding surface is attached to the furnace column; and
the integrated smoke dust collecting mechanism comprises a smoke dust collecting cover, a collecting pipe, a lump-shaped shutter and a dust removing main pipe; the smoke dust collecting cover is arranged above the carbonization chamber, and forms a closed space with the furnace column and the furnace wall corresponding to the carbonization chamber so as to absorb the smoke dust; the bottom end of the collecting pipe is connected with the smoke collecting cover and is used for receiving smoke absorbed by the smoke collecting cover and conveying the smoke to the dust removing main pipe; the thinner end of the lump-shaped shutter is lapped on the top end of the collecting pipe and is lifted to conduct or separate the collecting pipe and the dust removing main pipe;
wherein, when collecting the smoke and dust, push-pull device drive square component leans on the stove post, in order to increase the storage space of smoke and dust, integral type smoke and dust collection mechanism is through the smoke and dust collection cover absorption the smoke and dust in the storage space, and make dust removal dry pipe intercommunication collecting pipe in order to collect through promoting the shutter that sticks together.
As a further improvement of the scheme, each furnace door type smoke dust collecting mechanism further comprises a sealing strip, wherein the sealing strip is arranged on one end of the square component close to the furnace column, and the joint of the square component and the furnace column is sealed when the joint surface is attached to the furnace column.
As a further improvement of the scheme, the push-pull device comprises a hydraulic cylinder, a cylinder body support, a hydraulic conduit, a hydraulic oil station and a push-pull rod support; the cylinder body support is fixed on the bracket, and the hydraulic cylinder is arranged on the cylinder body support; the hydraulic oil station provides hydraulic pressure for the hydraulic cylinder through the hydraulic guide pipe, so that a push-pull rod of the hydraulic cylinder stretches; the push-pull rod support is arranged on the square component and is connected with the push-pull rod of the hydraulic cylinder.
Further, each oven door type smoke dust gathering mechanism further comprises a limiter; the limit device comprises a limit wire and a limit switch, and the limit switch is arranged on the bracket and used for controlling the working state of the push-pull device; one end of the limit wire is connected with the limit switch, the other end of the limit wire is connected with the square component, and the limit switch is driven to be disconnected when the square component moves to a preset position, so that the push-pull device stops driving the square component to move.
Still further, the push-pull device further comprises a controller; the controller stretches out the push-pull rod of the limit switch through the hydraulic cylinder to drive the square component to be close to the corresponding carbonization chamber when the limit switch is turned on, and contracts the push-pull rod of the limit switch through the hydraulic cylinder to drive the square component to be far away from the corresponding carbonization chamber when the limit switch is turned off.
As a further improvement of the scheme, the smoke dust collecting cover comprises at least one baffle plate, and the baffle plate is arranged on two furnace columns and encloses the closed space with furnace walls corresponding to the furnace columns and the carbonization chambers; wherein the end of the partition plate extends out of the side of the furnace column.
As a further improvement of the scheme, each furnace door type smoke dust collecting mechanism further comprises a roller group and a guide rail II, wherein the roller group is arranged at the bottom end of the square component, and the guide rail II is arranged on a platform for bearing the coal charging car; the square component rolls on the second guide rail through the roller group and approaches to or leaves from the carbonization chamber.
As a further improvement of the scheme, the integrated smoke dust collecting mechanism further comprises a steel wire rope, a guide wheel, a fixing frame and a movable arm; the fixed frame is fixed on the dust removing main pipe, and the guide wheel is rotatably arranged on the fixed frame; the steel wire rope is in rolling fit with the guide wheel, one end of the steel wire rope is connected with the top end of the lump-shaped shutter, and the other end of the steel wire rope is connected with the end of the movable arm; the movable arm is arranged on the fixed frame in a lever type, and the movable arm drives the steel wire rope to lift the lump-shaped shutter through rotation.
Further, the sealing strip is made of flexible steel sheet and is lined with a refractory asbestos plate.
The telescopic end of the push-pull device can push and pull the square component when the coke oven coal-charging smoke dust collecting device is used for charging coal, so that the square component is close to the carbonization chamber and is connected with the furnace column, the length of the coal cake box body and the length of the carbonization chamber are increased, the storage space of smoke dust generated in the coal charging process is increased, the smoke dust collecting and concentrating effects are achieved, and the smoke dust collecting range is increased. In the invention, the smoke collecting cover, the furnace column and the furnace wall enclose a closed space, so that the leakage of smoke from gaps can be avoided, and the smoke in the storage space can be collected, and meanwhile, the dust collecting main pipe is communicated with the collecting pipe and used for collecting the smoke and further treating the smoke, so that the influence of the smoke on the environment is reduced.
The invention also provides a method for collecting the coal-charging smoke dust of the coke oven, which is applied to any of the coke oven coal-charging smoke dust collecting devices, and comprises the following steps:
the square component is driven to be abutted against the furnace column so as to increase the storage space of smoke dust generated when the coal loading vehicle loads coal into the carbonization chamber;
collecting the smoke dust in the storage space by using a smoke dust collecting cover;
lifting the lump-shaped shutter to enable the collecting pipe to be communicated with the dust removing main pipe, and collecting the smoke dust in the dust removing main pipe.
The beneficial effects of the method for collecting the coal-charging smoke dust of the coke oven are the same as those of the device for collecting the coal-charging smoke dust of the coke oven, and are not described in detail herein.
Drawings
FIG. 1 is a front view of a coke oven coal-charging dust collection device of embodiment 1 of the present invention;
FIG. 2 is a section B-B of the coke oven coal-charging dust collection device of FIG. 1;
fig. 3 is an enlarged view of the area a in fig. 2;
FIG. 4 is a side view of the coke oven coal-charging dust collection device of FIG. 1;
FIG. 5 is a front view of a coke oven coal-charging dust collection device of embodiment 3 of the present invention;
FIG. 6 is a cross-sectional view of a coke oven coal-charging dust collection device of example 4 of the present invention;
fig. 7 is a front view of a coke oven coal-charging dust collection device according to embodiment 5 of the present invention.
Symbol description:
1. furnace column 18 fixing frame
2. Partition board of carbonization chamber 19
3. Coal charging car 20 limiter
4. Second guide rail of bracket 21
5. Square member 22 wire rope
6. Tug 23 guide wheel
7. Push-pull device 24 movable arm
8. Sealing strip 25 mounting frame
9. Guide rail one 26 lifting rod
10. Expansion piece of support rod 27
11. Hydraulic oil station 28 positioning structure
12. Controller 29 sealing gasket
13. Roller set 30 expansion cover
14. Smoke dust collecting hood 31 connecting rod I
15. Collecting pipe 32 connecting rod II
16. Lump type shutter 33 telescopic structure
17. Dust removal main pipe
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1, 2 and 3, the present embodiment provides a coke oven coal-charging dust collecting device for collecting dust generated when a coal charging car 3 charges coal into a carbonization chamber 2. Since each coke oven has N carbonization chambers 2 and n+1 oven columns 1 (N is a positive integer, preferably 60), and the oven columns 1 are provided on both sides of each carbonization chamber 2, the coke oven coal-charging smoke dust collecting device of the present embodiment corresponds to one carbonization chamber 2, and therefore, in this coke oven, a plurality of coke oven coal-charging smoke dust collecting devices can be provided for collecting smoke dust. The coke oven coal-charging smoke dust collecting device comprises an integrated smoke dust collecting mechanism and two oven door type smoke dust collecting mechanisms.
The two furnace door type smoke dust gathering mechanisms are respectively arranged at two sides of the front end of the coal charging car 3 and are symmetrically arranged. Each oven door type smoke dust collecting mechanism comprises a column type square component 5, a plurality of supporting wheel groups and a push-pull device 7, wherein the number of the supporting wheel groups can be one or a plurality of supporting wheel groups, in the embodiment, the number of the supporting wheel groups is two, one supporting wheel group is arranged at the middle upper part of the square component 5, and the other supporting wheel group is arranged at the middle lower part of the square component 5. On opposite sides of the coal charging car 3, two square members 5 respectively correspond to two furnace columns 1 on both sides of the carbonization chamber 2, and each square member 5 has an abutting surface matched with the corresponding furnace column 1. The riding wheel group comprises a first guide rail 9, a supporting rod 10 and a plurality of towing wheels 6, and the number of the towing wheels 6 can be one or a plurality of towing wheels. The first guide rail 9 is arranged on the brackets 4 on two sides of the coal charging car 3 and is perpendicular to the joint surface. The tug 6 is mounted on the first guide rail 9 and is fixedly connected with the square member 5 through a support rod 10. The push-pull device 7 is fixed on the bracket 4 and is provided with a telescopic end connected with the square component 5; the push-pull device 7 drives the square member 5 to be close to the carbonization chamber 2 by stretching the stretching end of the push-pull device, so that the bonding surface is attached to the furnace column 1. In this embodiment, the first rail 9 may be composed of two sub-rails, and the two sub-rails are disposed horizontally and in parallel, with the tug 6 disposed therebetween. The sub-guide rail positioned above and the tug 6 have a certain gap in the transverse direction, so that the tug 6 can be guided, the square member 5 can be prevented from deviating from a preset track due to the derailment of the tug 6, and the sub-guide rail positioned below can support the tug 6. Like this, square component 5 can remove relative support 4 to the space volume between carbomorphism room 2 and the coal charging car 3 is increased correspondingly, and can gather together, concentrate, collect the smoke and dust that produces when loading coal, avoid the smoke and dust diffusion, improve the collection effect of smoke and dust.
In this embodiment, the push-pull device 7 may comprise a hydraulic cylinder, a cylinder support, a hydraulic conduit, a hydraulic oil station 11 and a push-pull rod support. The cylinder body support is fixed on the support 4, and the pneumatic cylinder is installed on the cylinder body support. The hydraulic oil station 11 supplies hydraulic pressure to the hydraulic cylinder through a hydraulic conduit, so that a push-pull rod of the hydraulic cylinder stretches and contracts. The push-pull rod support is arranged on the square component 5 and is connected with the push-pull rod of the hydraulic cylinder. In other embodiments, the push-pull device 7 may also be directly an electric push rod and driven by power supply.
Referring to fig. 4, the integrated dust collecting mechanism includes a dust collecting hood 14, a collecting pipe 15, a lump shutter 16, and a dust removing dry pipe 17. The smoke dust collecting cover 14 is arranged above the carbonization chamber 2, and forms a closed space with furnace walls corresponding to the furnace column 1 and the carbonization chamber 2 so as to absorb smoke dust. The bottom end of the collecting pipe 15 is connected to the fume collecting hood 14 and is used for receiving fume absorbed by the fume collecting hood 14 and delivering the fume to the dust removing dry pipe 17. The outer contour of the lump-shaped shutter 16 is truncated cone-shaped and is of one integral structure, i.e. the two ends are not connected. The thinner end of the lump-shaped shutter 16 is lapped on the top end of the collecting pipe 15, and is lifted to conduct or isolate the collecting pipe 15 and the dust removal main pipe 17. In this embodiment, the dust removal dry pipe 17 is finally connected to the ground dust removal station of the coke oven so that the ground dust removal station sucks and processes the dust by the suction force of its dust removal fan.
When the smoke collecting cover 14 is formed, the smoke collecting cover 14 may include the partition plates 19, and the number of the partition plates 19 may be one or plural. The partition plate 19 is arranged on the two furnace columns 1, and forms a closed space with furnace walls corresponding to the furnace columns 1 and the carbonization chambers 2. Wherein the end of the partition 19 protrudes out of the side of the furnace column 1 to increase the volume of the enclosed space so that the inner accommodation space of the fume collecting hood 14 is larger. Meanwhile, a vertical plate may be welded to the side of the furnace column 1, the fume collecting hood 14 is supported by the vertical plate, and the vertical plate has a length smaller than the corresponding length of the partition plate 19.
Wherein, when collecting the smoke and dust, push-and-pull device 7 drive square component 5 is leaned on the stove post 1 to increase the storage space of smoke and dust, be equivalent to increasing the length of coal cake box length and carbonization chamber 2, thereby play the effect of gathering together, concentrating to the smoke and dust, and the flue dust in the storage space is absorbed through the flue dust collection cover 14 to integral type flue dust collection mechanism, and makes dust removal dry pipe 17 intercommunication collecting pipe 15 in order to collect the flue dust through promoting the shutter 16 that sticks together.
Here, in this embodiment, each oven door type smoke collecting mechanism may further include a sealing strip 8, a limiter 20, a roller set 13, and a second guide rail 21, and the integrated smoke collecting mechanism may further include a wire rope 22, a guide wheel 23, a fixing frame 18, and a movable arm 24.
The sealing strip 8 is arranged on one end of the square component 5 close to the furnace column 1, and seals the joint of the square component 5 and the furnace column 1 when the joint surface is attached to the furnace column 1. Wherein the sealing strip 8 is made of flexible steel sheet and is lined with a fireproof asbestos board. The sealing strip 8 not only can play a sealing role, but also can prevent damage caused when the square member 5 contacts the furnace column 1, thereby protecting the square member 5 and the furnace column 1.
The limiter 20 comprises a limit wire and a limit switch, and the limit switch is installed on the bracket 4 and is used for controlling the working state of the push-pull device 7. One end of the limit wire is connected with the limit switch, the other end of the limit wire is connected with the square member 5, and the limit switch is driven to be disconnected when the square member 5 moves to a preset position, so that the push-pull device 7 stops driving the square member 5 to move. In this embodiment, the push-pull device 7 may further comprise a controller 12. The controller 12 stretches out the push-pull rod through the hydraulic cylinder to drive the square member 5 to be close to the corresponding carbonization chamber 2 when the limit switch is turned on, and contracts the push-pull rod through the hydraulic cylinder to drive the square member 5 to be far away from the corresponding carbonization chamber 2 when the limit switch is turned off.
The roller group 13 is mounted on the bottom end of the square member 5, and the second guide rail 21 is mounted on the platform carrying the coal charging car 3. The square member 5 rolls on the second rail 21 by the roller group 13 and approaches or separates from the carbonization chamber 2. The roller set 13 may support the square shaped members 5 such that the square shaped members 5 can be moved relative to the furnace column 1 in order to expand the storage space for the fumes. Of course, in other embodiments, the square member 5 may be moved by other structures, such as sliding by a slider and a rail, and then moving by a ball on a platform.
The fixed frame 18 is fixed on the dust removal main pipe 17, and the guide wheel 23 is rotatably installed on the fixed frame 18. The wire rope 22 is in rolling fit with the guide wheel 23, one end of the wire rope 22 is connected with the top end of the lump-shaped shutter 16, and the other end of the wire rope 22 is connected with the end of the movable arm 24. The movable arm 24 is lever-type mounted on the fixed frame 18 and is rotated to drive the wire rope 22 to lift the lump shutter 16. Thus, when the dust removing main pipe 17 is communicated with the collecting pipe 15, the movable arm 24 can be driven, and the lump type shutter 16 is lifted by utilizing the lever principle, so that the dust is collected. And after the smoke and dust is collected, the lump-shaped shutter 16 can automatically descend under the action of gravity and cover the collecting pipe 15, so that the reflux of the smoke and dust is avoided, and the collection effect of the smoke and dust is improved.
In summary, the coke oven coal-charging smoke dust collecting device of the embodiment has the following advantages:
in the coke oven coal-charging smoke dust collecting device of the embodiment, when coal is charged, the telescopic end of the push-pull device 7 can push and pull the square component 5, so that the square component 5 is close to the carbonization chamber 2 and is connected with the furnace column 1, the length of the coal cake box body and the length of the carbonization chamber 2 are increased, the storage space of smoke dust generated in the coal charging process is increased, the smoke dust is gathered and concentrated, and the smoke dust collecting range is increased. In this embodiment, the smoke collecting cover 14 encloses into a closed space with the furnace column 1 and the furnace wall, so that smoke can be prevented from leaking from the gaps, and the smoke in the storage space can be collected, and meanwhile, the dust collecting main pipe 17 is communicated with the collecting pipe 15 and is used for collecting the smoke through the lifting lump type shutter 16, and the smoke is further treated, so that the influence of the smoke on the environment is reduced.
Example 2
The present embodiment provides a method for collecting coke oven coal-charging smoke, which can be applied to the coke oven coal-charging smoke collecting device in embodiment 1. The method for collecting the coal-charging smoke dust of the coke oven comprises the following steps:
1. the square member 5 is driven to be abutted against the furnace column 1 so as to increase the storage space of smoke dust generated when the coal charging car 3 charges coal into the carbonization chamber 2;
2. collecting the smoke in the storage space by the smoke collecting cover 14;
3. lifting the lump shutter 16 to communicate the collecting pipe 15 with the dust removing dry pipe 17, and collecting the dust in the dust removing dry pipe 17.
Example 3
Referring to fig. 5, the present embodiment provides a coke oven coal-charging dust collection device, which is similar to embodiment 1, except that the integrated dust collection mechanism in the present embodiment is different from that in embodiment 1. In this embodiment, the integrated smoke collection mechanism may further include a mounting bracket 25, a lifting rod 26, and a telescopic member 27. The mounting bracket 25 is installed on the dust removal trunk 17, and the bottom of lifter 26 is fixed on the top of lump-shaped shutter 16. The telescopic member 27 is mounted on the mounting frame 25 with a telescopic end connected to the top end of the lifting rod 26 and is used to lift the lump shutter 16 via the lifting rod 26. The telescopic piece 27 can adopt an air cylinder, an oil cylinder or an electric push-pull rod. Thus, the structure of the lifting lump-shaped shutter 16 in the embodiment does not need manual operation, the smoke dust collecting flow can be simplified, the smoke dust collecting efficiency is improved, and meanwhile, the structure is simpler, and the production cost can be saved.
Example 4
Referring to fig. 6, the present embodiment provides a coke oven coal-charging smoke dust collecting device, which adds a limiting mechanism on the basis of embodiment 1. Wherein the limiting mechanism comprises a positioning structure 28 and an elastic sealing gasket 29. The positioning structure 28 is mounted on the end of the square member 5 adjacent to the furnace column 1 and has a recess for receiving the furnace column 1. The recess is provided towards the furnace column 1 and a gasket 29 is mounted in the recess. Furthermore, the end of the positioning structure 28 facing the furnace column 1 is also provided with a rounded corner structure to facilitate sliding of the furnace column 1 into the recess. Thus, when the square-shaped element 5 is brought close to the furnace column 1, the positioning structure 28 will cooperate with the furnace column 1, so that the furnace column 1 is snapped into the recess and sealed by the gasket 29. The sealing gasket 29 not only can seal the joint of the furnace column 1 and the positioning structure 28, but also can reduce the damage caused by collision between the furnace column 1 and the square member 5 and protect the furnace column 1 and the square member 5.
Example 5
Referring to fig. 7, the present embodiment provides a coke oven coal-charging smoke dust collecting device, which adds a capacity expansion mechanism on the basis of embodiment 1. The expansion mechanism includes a fan-shaped expansion cover 30, a first connecting rod 31, a second connecting rod 32, and a telescopic structure 33. The expansion hood 30 is rotatably installed on the bottom end of the fume collecting hood 14, and is rotated to enclose an expansion chamber with the fume collecting hood 14 to increase the collecting space of the fume. One end of the first connecting rod 31 is rotatably mounted on the side surface of the capacity expansion cover 30, and one end of the second connecting rod 32 is rotatably connected with the other end of the first connecting rod 31. The other end of the second connecting rod 32 is fixedly connected with the telescopic end of a telescopic structure 33, and the telescopic structure 33 is fixed on the smoke dust collecting cover 14. The telescopic structure 33 can adopt one of a cylinder, an oil cylinder and an electric push-pull rod, and can drive the telescopic end of the telescopic structure to stretch so as to drive the second connecting rod 32 and the first connecting rod 31 to rotate and drive the expansion hood 30 to rotate at the bottom end of the smoke dust collecting hood 14, so that the volume of the expansion bin is continuously changed, and meanwhile, the bottom end opening of the expansion bin is also continuously changed so as to be convenient for setting in actual needs.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A coke oven coal-charging smoke dust collecting device for collecting smoke dust generated when a coal charging car (3) charges coal into a carbonization chamber (2), characterized by comprising:
the two furnace door type smoke dust gathering mechanisms are respectively arranged at two sides of the front end of the coal charging car (3) and are symmetrically arranged; each furnace door type smoke dust gathering mechanism comprises a column type square component (5), at least one pallet group and a push-pull device (7); the two square components (5) are respectively corresponding to the two furnace columns (1) at the two sides of the carbonization chamber (2), and each square component (5) is provided with a joint surface matched with the corresponding furnace column (1); the riding wheel set comprises a first guide rail (9), a supporting rod (10) and at least one tug (6); the first guide rail (9) is arranged on the brackets (4) at two sides of the coal charging car (3) and is vertical to the joint surface; the tug (6) is arranged on the first guide rail (9) and is fixedly connected with the square component (5) through the support rod (10); the push-pull device (7) is fixed on the bracket (4) and is provided with a telescopic end connected with the square component (5); the push-pull device (7) drives the square component (5) to be close to the carbonization chamber (2) by stretching the stretching end of the push-pull device, so that the bonding surface is attached to the furnace column (1); and
the integrated smoke dust collecting mechanism comprises a smoke dust collecting cover (14), a collecting pipe (15), a lump-shaped shutter (16) and a dust removing dry pipe (17); the smoke dust collecting cover (14) is arranged above the carbonization chamber (2), and forms a closed space with the furnace column (1) and the furnace wall corresponding to the carbonization chamber (2) so as to absorb the smoke dust; the bottom end of the collecting pipe (15) is connected with the smoke collecting cover (14) and is used for receiving smoke absorbed by the smoke collecting cover (14) and conveying the smoke to the dust removing main pipe (17); the thinner end of the lump-shaped shutter (16) is lapped on the top end of the collecting pipe (15) and is lifted to conduct or separate the collecting pipe (15) and the dust removing main pipe (17);
wherein, when collecting the smoke and dust, push-and-pull device (7) drive square component (5) are leaned on stove post (1) to increase the storage space of smoke and dust, integrated smoke and dust collection mechanism is through smoke and dust collection cover (14) absorption smoke and dust in the storage space, and make dust removal dry pipe (17) intercommunication collecting pipe (15) in order to collect through promoting lump shutter (16).
2. The coke oven coal-charging dust collection device according to claim 1, wherein each oven door type dust collection mechanism further comprises a sealing strip (8), the sealing strip (8) is mounted on one end of the square member (5) close to the oven pillar (1), and the joint of the square member (5) and the oven pillar (1) is sealed when the joint surface is attached to the oven pillar (1).
3. The coke oven coal-charging dust collection device according to claim 1, characterized in that the push-pull device (7) comprises a hydraulic cylinder, a cylinder support, a hydraulic conduit, a hydraulic oil station (11) and a push-pull rod support; the cylinder body support is fixed on the bracket (4), and the hydraulic cylinder is arranged on the cylinder body support; the hydraulic oil station (11) provides hydraulic pressure for the hydraulic cylinder through the hydraulic guide pipe, so that a push-pull rod of the hydraulic cylinder stretches; the push-pull rod support is arranged on the square component (5) and is connected with the push-pull rod of the hydraulic cylinder.
4. The coke oven coal-charging dust collection apparatus of claim 3, wherein each oven door dust collection mechanism further comprises a stopper (20); the limiter (20) comprises a limit wire and a limit switch, and the limit switch is arranged on the bracket (4) and is used for controlling the working state of the push-pull device (7); one end of the limit wire is connected with the limit switch, the other end of the limit wire is connected with the square component (5), and the limit switch is driven to be disconnected when the square component (5) moves to a preset position, so that the push-pull device (7) stops driving the square component (5) to move.
5. The coke oven coal-charging dust collection device of claim 4, wherein the push-pull device (7) further comprises a controller (12); the controller (12) stretches out of the push-pull rod through the hydraulic cylinder to drive the square component (5) to be close to the corresponding carbonization chamber (2) when the limit switch is turned on, and contracts the push-pull rod through the hydraulic cylinder to drive the square component (5) to be far away from the corresponding carbonization chamber (2) when the limit switch is turned off.
6. The coke oven coal-charging smoke dust collecting device according to claim 1, wherein the smoke dust collecting cover (14) comprises at least one partition plate (19), and the partition plate (19) is arranged on two furnace columns (1) and surrounds the closed space with furnace walls corresponding to the furnace columns (1) and the carbonization chamber (2); wherein the end of the partition plate (19) extends out of the side part of the furnace column (1).
7. The coke oven coal-charging smoke dust collecting device according to claim 1, wherein each oven door type smoke dust collecting mechanism further comprises a roller group (13) and a guide rail II (21), wherein the roller group (13) is arranged on the bottom end of the square member (5), and the guide rail II (21) is arranged on a platform for bearing the coal charging car (3); the square component (5) rolls on the second guide rail (21) through the roller group (13) and approaches to or departs from the carbonization chamber (2).
8. The coke oven coal-charging dust collection device of claim 1, wherein the integrated dust collection mechanism further comprises a wire rope (22), a guide wheel (23), a fixing frame (18) and a movable arm (24); the fixing frame (18) is fixed on the dust removing main pipe (17), and the guide wheel (23) is rotatably arranged on the fixing frame (18); the steel wire rope (22) is in rolling fit with the guide wheel (23), one end of the steel wire rope (22) is connected with the top end of the lump-shaped shutter (16), and the other end of the steel wire rope (22) is connected with the end of the movable arm (24); the movable arm (24) is arranged on the fixed frame (18) in a lever type, and drives the steel wire rope (22) to pull up the lump-shaped shutter (16) through rotation.
9. The coke oven coal-charging dust collection device according to claim 2, characterized in that the sealing strip (8) is made of flexible steel sheet and lined with a refractory asbestos sheet.
10. A method for collecting coke oven coal-charging smoke dust, which is applied to the coke oven coal-charging smoke dust collecting device according to any one of claims 1 to 9, and is characterized by comprising the following steps:
the square component (5) is driven to be abutted against the furnace column (1) so as to increase the storage space of smoke dust generated when the coal charging car (3) charges coal into the carbonization chamber (2);
collecting smoke dust in the storage space by using a smoke dust collecting cover (14);
lifting the lump shutter (16) to enable the collecting pipe (15) to be communicated with the dust removing main pipe (17), and collecting the smoke dust in the dust removing main pipe (17).
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