CN115818128A - Sealing device for coal conveying trestle of gas film coal shed and using method - Google Patents
Sealing device for coal conveying trestle of gas film coal shed and using method Download PDFInfo
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- CN115818128A CN115818128A CN202310074435.XA CN202310074435A CN115818128A CN 115818128 A CN115818128 A CN 115818128A CN 202310074435 A CN202310074435 A CN 202310074435A CN 115818128 A CN115818128 A CN 115818128A
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- 238000007789 sealing Methods 0.000 title claims abstract description 134
- 239000003245 coal Substances 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims description 19
- 238000010168 coupling process Methods 0.000 claims description 19
- 238000005859 coupling reaction Methods 0.000 claims description 19
- 238000010408 sweeping Methods 0.000 claims description 16
- 239000002817 coal dust Substances 0.000 claims description 14
- 230000007723 transport mechanism Effects 0.000 claims description 8
- 230000032258 transport Effects 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000000428 dust Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000000843 powder Substances 0.000 description 14
- 238000009434 installation Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000002035 prolonged effect Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
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- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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Abstract
The invention relates to the technical field of pulverized coal transportation and storage, in particular to a sealing device for a coal conveying trestle of a gas film coal shed and a using method, wherein the sealing device comprises a base, rotatable belt pulleys are respectively arranged on two sides of the upper end of the base, a conveying belt is sleeved on the outer surfaces of the two belt pulleys, a plurality of concave conveying mechanisms matched with the conveying belt are arranged in the middle of the base, a sealing box is arranged on each concave conveying mechanism, a leveling mechanism capable of leveling pulverized coal is arranged on one side of the lower end of the sealing box, and a plurality of active sealing doors matched with the pulverized coal are arranged on the other side of the lower end of the sealing box; can carry out the flattening to the buggy, guarantee that the buggy is even on the belt to can carry out a lot of again to the buggy in the transportation and seal, reduce buggy raise dust and pollute, practice thrift the cost, improve enterprise economy and environmental protection benefit.
Description
Technical Field
The invention relates to the technical field of pulverized coal transportation and storage, in particular to a sealing device of a coal conveying trestle of an air film coal shed and a using method of the sealing device.
Background
The air film coal shed is used as a main coal storage building and needs to continuously convey pulverized coal to enter. But because of the uniqueness, the internal span is large, the rigid support is avoided, and the positive pressure is maintained by the uninterrupted operation of the fan, the requirement on the tightness of the associated conveying facilities is strict; the belt for conveying the pulverized coal continuously runs, the coal conveying trestle passing through the air film coal shed becomes the largest leakage point, and the sealing problem of the coal conveying trestle of the air film coal shed is urgently needed to be solved in order to ensure the normal air pressure in the air film and the minimum energy consumption; when the pulverized coal is blown and swept by micro-positive pressure gas at the sealing part of the trestle and the air film, dust can be generated to cause environmental pollution, and a conveying belt passing through the coal conveying trestle needs to be sealed in order to meet the environmental protection requirement, reduce the production cost and improve the economic benefit of enterprises; the sealing device for the coal conveying trestle of the gas film coal shed is designed to solve the problems mentioned above.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the sealing device for the coal conveying trestle of the gas film coal shed, which can level coal powder, ensure the coal powder on a belt to be uniform, seal the coal powder for multiple times in the conveying process, reduce the dust pollution of the coal powder, save the cost, improve the economic and environmental benefits of enterprises and effectively solve the problems in the background art.
In order to solve the problems, the invention adopts the technical scheme that:
the utility model provides a gas film coal canopy coal conveying landing stage sealing device, includes the base, rotatable belt pulley is installed respectively to base upper end both sides, and the cover has the conveyer belt on two belt pulley surfaces, and the base middle part is equipped with a plurality ofly and conveyer belt matched with spill transport mechanism, is equipped with the seal box on the spill transport mechanism, and seal box lower extreme one side is equipped with can be to the mechanism of dredging the flat of buggy flattening, and seal box lower extreme opposite side is equipped with multichannel and buggy matched with active sealing door.
The base middle part is equipped with a plurality of backup pads, and spill transport mechanism installs respectively in the backup pad that corresponds, and spill transport mechanism includes the special-shaped bearing frame of two rigid couplings at the backup pad up end, and two special-shaped bearing frame inboards are rotated and are connected with a first cylinder, and two special-shaped bearing frame outsides are rotated respectively and are connected with the second cylinder that inclines to the upper end outside, and the outside end of second cylinder rotates respectively and is connected with the side bearer, and the equal rigid coupling in bottom of side bearer is on the base.
The flat dredging mechanism comprises a support frame fixedly connected to the inner wall of the seal box, a first motor is fixedly connected to the upper end surface of the seal box, a small belt wheel is fixedly connected to the output end of the first motor, a large belt wheel is connected to the lower end of the small belt wheel, a long cam is coaxially fixedly connected to the large belt wheel, a long sliding plate is slidably connected to the inner wall of the support frame, a first sliding pin matched with the long cam is fixedly connected to the upper end surface of the long sliding plate, and a flat dredging and sweeping plate is mounted at the lower end of the long sliding plate.
The dredging and sweeping plate is hinged to the rear side of the lower end of the long sliding plate, the front side of the upper end of the long sliding plate is rotatably connected with a small straight gear, a long rack fixedly connected with the support frame is meshed on the outer surface of the small straight gear, the lower end of the small straight gear is coaxially and fixedly connected with a crank, a long pin is fixedly connected to the inner wall of the other end of the crank, and a long key groove matched with the long pin is formed in the front side of the surface of the upper end of the dredging and sweeping plate.
The inner wall rigid coupling of seal box front side has the scraper blade, and the scraper blade lower extreme is equipped with the arc and smears the board, and the arc is smeared the board both sides and is equipped with respectively and carry belt matched with oblique cut angle.
The active sealing door comprises an obliquely arranged active sealing door, the active sealing door is hinged to the inner wall of the middle of the sealing box, and the left side and the right side of the lower end of the active sealing door are respectively provided with a chamfered edge matched with the conveying belt.
The active sealing plate further comprises a curtain door matched with the conveyor belt, the curtain door comprises a long shaft, the long shaft is fixedly connected to the inner wall of the rear side of the sealing box, and a plurality of belt curtains are rotatably connected to the outer surface of the long shaft.
The extension box is fixedly connected to the front side and the rear side of the inner wall of the left end and the right end of the seal box respectively, trapezoidal sliders are slidably connected to the inner wall of the extension box respectively, two vertical plates matched with the corresponding trapezoidal sliders are fixedly connected to the left side and the right side of the upper end surface of the base respectively, a handle is rotatably connected to the middle of the surface of the left end and the right end of the left end surface of the seal box respectively, a short cam is fixedly connected to the outer surface of the handle respectively, a ring sleeve is sleeved on the outer surface of the short cam respectively, short sliding pins meshed with the short cams are fixedly connected to the inner wall of the front end and the rear end of the ring sleeve respectively, a connecting rod is fixedly connected to the front end and the rear end of the outer surface of the ring sleeve respectively, anti-falling plates slidably connected with the extension box are fixedly connected to the outer end surface of the connecting rod respectively, the trapezoidal sliders are fixedly connected to the corresponding anti-falling plates respectively, and springs matched with the inner walls of the bottom end of the extension box are fixedly connected to the extension box respectively.
A use method of a sealing device of a coal conveying trestle of a gas film coal shed comprises the following steps:
s, the device is moved to a designated position, the coal dust can stably move along with the conveyor belt through the matching of the concave conveying mechanism and the conveyor belt, and the upper end face of the coal dust can be leveled through the leveling mechanism;
s, multiple sealing can be performed when the device transports the pulverized coal through the arranged multiple active sealing doors matched with the pulverized coal.
The invention has novel structure, ingenious conception and simple and convenient operation, and compared with the prior art, the invention has the following advantages:
the coal conveying trestle is communicated from the outside to the inside of the gas film coal shed, and the conveying belt is arranged in the coal conveying trestle; the coal conveying belt is completely sealed in the conveying process and is connected with the sealing device; the interior of the sealing device is divided into three parts: leveling the coal powder in the first step to ensure that the coal powder on the belt is uniform and consistent with the sealing gap at the scraper plate; the second sealing is of a rotating shaft type, and when the coal dust collector is normally used, the sealing plate is in contact with the coal dust which is leveled in the first sealing, so that secondary sealing is realized; meanwhile, the second seal can also ensure the seal of the belt in an idle or stop state; the third sealing is operation sealing, a belt curtain is fully distributed on the rotating shaft and is tightly combined with the pulverized coal of the conveying belt, and the sealing effect is achieved; the outer part of the sealing device is a box body type, so that the belt is limited axially and radially before entering the sealing device for first sealing in order to prevent the belt from deviating in the running process, and meanwhile, a soft sealing strip and a polyethylene wear-resisting plate are adopted at the sealing position of the belt, so that the wear of the sealing device on the belt is reduced, the frequency of replacing the sealing strip and the wear-resisting plate is reduced, and the service life of the belt is prolonged; the tightness of the transmission part is ensured through multiple sealing, the coal conveying belt is limited and leveled, the deviation and abrasion of the belt are prevented, and the service life of the sealing part is prolonged; the belt passing through the trestle is fully sealed, so that the dust pollution of the pulverized coal is reduced, the cost is saved, and the economic and environmental benefits of enterprises are improved.
Drawings
Fig. 1 is an axonometric view I of a sealing device of a coal conveying trestle of a gas film coal shed.
Fig. 2 is an axonometric view II of a sealing device of a coal conveying trestle of a gas film coal shed of the invention.
Fig. 3 is a schematic diagram of the installation of the conveyor belt of the sealing device of the coal conveying trestle of the gas film coal shed.
Fig. 4 is a schematic view of the belt pulley installation of the sealing device for the coal conveying trestle of the gas film coal shed.
Fig. 5 is a schematic structural view of a concave conveying mechanism of the sealing device for the coal conveying trestle of the gas film coal shed.
FIG. 6 is a sectional view of a seal box of the sealing device of the coal conveying trestle of the gas film coal shed.
FIG. 7 is a schematic view of the installation of a movable seal door of the sealing device of the coal conveying trestle of the gas film coal shed.
Fig. 8 is a schematic view of the installation of the long cam of the sealing device of the coal conveying trestle of the gas film coal shed.
Fig. 9 is a schematic view of the installation of the support frame of the sealing device of the coal conveying trestle of the gas film coal shed.
FIG. 10 is a schematic view of the installation of the crank of the sealing device of the coal conveying trestle of the gas film coal shed.
FIG. 11 is a schematic view of the belt curtain installation of the sealing device of the coal conveying trestle of the gas film coal shed.
FIG. 12 is a schematic view of the installation of a trapezoidal sliding block of the sealing device of the coal conveying trestle of the gas film coal shed.
FIG. 13 is a schematic view of the installation of a short cam of the sealing device of the coal conveying trestle of the gas film coal shed.
Reference numbers in the figures: 1-base, 2-driving pulley, 3-driven pulley, 4-conveying belt, 5-supporting plate, 6-special-shaped bearing seat, 7-side frame, 8-first roller, 9-second roller, 10-sealing box, 11-first motor, 12-small pulley, 13-large pulley, 14-long cam, 15-supporting frame, 16-long sliding plate, 17-first sliding pin, 18-dredging and sweeping plate, 19-small spur gear, 20-long rack, 21-crank, 22-long pin, 23-long keyway, 24-scraper, 25-movable sealing door, 26-belt curtain, 27-vertical plate, 28-handle, 29-short cam, 30-circular sleeve, 31-short sliding pin, 32-connecting rod, 33-anti-falling plate, 34-trapezoidal sliding block, 35-spring, 36-sealing baffle, 37-extending box and 38-long shaft.
Detailed Description
The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-13, the invention provides a sealing device for a coal conveying trestle of a gas film coal shed, which comprises a base 1, wherein two sides of the upper end of the base 1 are respectively provided with a rotatable belt pulley, the outer surfaces of the two belt pulleys are sleeved with a conveying belt 4, the middle part of the base 1 is provided with a plurality of concave conveying mechanisms matched with the conveying belt 4, the concave conveying mechanisms are provided with a sealing box 10, one side of the lower end of the sealing box 10 is provided with a leveling mechanism capable of leveling coal powder, and the other side of the lower end of the sealing box 10 is provided with a plurality of active sealing doors matched with the coal powder.
As shown in fig. 1-4 and 6-7, the base 1 supports and fixes the whole device, as shown in fig. 4, the belt pulley comprises a driving belt pulley 2 and a driven belt pulley 3, the driving belt pulley 2 is rotatably connected to the front end of the base 1, the driven belt pulley 3 is rotatably connected to the rear end of the base 1, the driving belt pulley 2 is fixedly connected with a motor, the driving belt pulley 2 can provide a rotating force for the driving belt pulley 2 through the arranged motor, when the driving belt pulley 2 rotates, the driving belt pulley 2 and the driven belt pulley 3 can be driven to synchronously rotate through the friction connection of the driving belt pulley 2, the driven belt pulley 3 and the conveyor belt 4, namely, the conveyor belt 4 moves, and when coal dust is poured into one end of the conveyor belt 4, the coal dust can be transported to a designated position when the conveyor belt 4 moves; the base 1 is placed at the conveying door of the air film coal shed, namely one end of the base 1 extends into the air film coal shed, and the other end of the base is positioned at the outer side end of the air film coal shed, so that the pulverized coal can be conveyed into the air film coal shed when the conveying belt 4 works; as shown in fig. 3, the concave conveying mechanism can enable the two ends of the belt pulley to be tilted and the middle part of the belt pulley to be sunken, so that the belt pulley is in a state shown in fig. 3, and the pulverized coal is prevented from leaking outwards when the conveying belt 4 outputs the pulverized coal; the size of the gas film coal shed transfer door is matched with the sealing box 10, and the sealing box 10 is placed at the transfer door of the gas film coal shed through the arranged sealing box 10, so that the gas film coal shed can be sealed; as shown in fig. 6, a sealing baffle 36 matched with the concave conveying mechanism is further fixedly connected to the upper end surface of the base 1, and the sealing baffle 36 is arranged to prevent air from flowing out of the lower end of the concave conveying mechanism; the coal dust on the conveying belt 4 can be leveled through the leveling mechanism, so that the height of the upper end face of the coal dust is flush, and the subsequent sealing work is facilitated; the gap between the seal box 10 and the pulverized coal can be sealed through the plurality of active seal doors; consequently can carry out the flattening to the buggy through the sealing device who sets up, guarantee that the buggy is even on the belt to can carry out a lot of again to the buggy in the transportation and seal, reduce buggy raise dust and pollute, reduce the gas leakage of gas film coal canopy, practice thrift the cost, improve enterprise economy and environmental protection benefit.
The middle part of the base 1 is provided with a plurality of supporting plates 5, the concave conveying mechanisms are respectively installed on the corresponding supporting plates 5 and comprise two special-shaped bearing seats 6 fixedly connected to the upper end faces of the supporting plates 5, the inner sides of the two special-shaped bearing seats 6 are rotatably connected with a first roller 8, the outer sides of the two special-shaped bearing seats 6 are respectively rotatably connected with second rollers 9 inclined towards the outer sides of the upper ends, the outer side ends of the second rollers 9 are respectively rotatably connected with side frames 7, and the bottom ends of the side frames 7 are fixedly connected to the base 1.
As shown in fig. 5, the concave conveying mechanism is slightly higher than the two belt pulleys, the irregular bearing seats 6 are installed and shaped as shown in fig. 5, a rotating shaft is fixedly connected to the inner wall of the first roller 8 and is rotatably connected to the inner walls of the two irregular bearing seats 6, the first roller 8 can only be limited to rotate, rotating shafts are respectively and fixedly connected to the inner walls of the second rollers 9, the rotating shafts are respectively and rotatably connected to the corresponding irregular bearing seats 6 and the corresponding side frames 7, the second roller 9 can only be limited to rotate, and the side frames 7 can support the outer sides of the second rollers 9, so that the second rollers 9 can work more stably; through the arranged special-shaped bearing seat 6, the first roller 8, the second roller 9 and the side frame 7, the conveyor belt 4 can be in a groove shape with a concave middle part when passing through the concave conveying mechanism, and pulverized coal outflow is prevented when the pulverized coal is conveyed.
The flat dredging mechanism comprises a support frame 15 fixedly connected to the inner wall of a seal box 10, a first motor 11 is fixedly connected to the surface of the upper end of the seal box 10, a small belt wheel 12 is fixedly connected to the output end of the first motor 11, a large belt wheel 13 is connected to the lower end of the small belt wheel 12, a long cam 14 is coaxially fixedly connected to the large belt wheel 13, a long sliding plate 16 is slidably connected to the inner wall of the support frame 15, a first sliding pin 17 matched with the long cam 14 is fixedly connected to the surface of the upper end of the long sliding plate 16, and a flat dredging and sweeping plate 18 is installed at the lower end of the long sliding plate 16.
As shown in fig. 6-9, the first motor 11 is used to provide a rotational force for the long cam 14, and the motor is prior art and will not be described again; the long sliding plate 16 can slide left and right on the inner wall of the supporting frame 15, the first sliding pin 17 and the long cam 14 are arranged and shaped as shown in fig. 8-9, because the long sliding plate 16 can be connected to the inner wall of the supporting frame 15 in a left-right sliding manner, namely the first sliding pin 17 can only move left and right, when the long cam 14 rotates, the long sliding plate 16 and the first sliding pin 17 can move left and right in a reciprocating manner by meshing with the first sliding pin 17; when the first motor 11 is started, the corresponding small belt wheel 12, the large belt wheel 13 and the long cam 14 are driven to rotate, when the long cam 14 rotates, the first sliding pin 17, the long sliding plate 16 and the sweeping plate 18 can move left and right in a reciprocating manner through meshing with the first sliding pin 17, and when the sweeping plate 18 moves left and right in a reciprocating manner, pulverized coal on the conveying belt 4 can be regularly and flatly dredged.
The sweeping board 18 is hinged on the rear side of the lower end of the long sliding board 16, the front side of the upper end of the long sliding board 16 is rotatably connected with a small straight gear 19, a long rack 20 fixedly connected with the support frame 15 is meshed on the outer surface of the small straight gear 19, the lower end of the small straight gear 19 is coaxially and fixedly connected with a crank 21, a long pin 22 is fixedly connected on the inner wall of the other end of the crank 21, and a long key groove 23 matched with the long pin 22 is formed in the front side of the surface of the upper end of the sweeping board 18.
As shown in fig. 9-10, the inner walls of the small spur gear 19 and the crank 21 are fixedly connected with a rotating shaft, and the rotating shaft penetrates through the long sliding plate 16 and is rotatably connected with the inner wall of the long sliding plate 16; as shown in fig. 9, the small spur gear 19 and the long rack 20 are installed and shaped such that when the small spur gear 19 moves left and right along with the long slide plate 16, the small spur gear 19 can be rotated while moving by meshing with the long rack 20; the crank 21, the long pin 22 and the long key slot 23 are arranged and shaped as shown in fig. 10, and the sweeping plate 18 can be swung back and forth left and right by meshing with the long key slot 23 when the long pin 22 rotates circumferentially; when the long sliding plate 16 drives the sweeping plate 18 to move left and right in a reciprocating mode, the small straight gear 19 is driven to move left and right in a reciprocating mode, the small straight gear 19 can rotate due to the fact that the small straight gear 19 is meshed with the long rack 20 when moving left and right in a reciprocating mode, the crank 21 can be driven to rotate when the small straight gear 19 rotates, the long pin 22 can rotate circumferentially, when the long pin 22 rotates circumferentially, the sweeping plate 18 can move left and right while swinging due to the fact that the long pin is meshed with the long key groove 23, the sweeping range of the upper end face of coal dust can be enlarged when the sweeping plate 18 swings, and the coal dust at the upper edge of the conveying belt 4 can be leveled.
The inner wall rigid coupling of seal box 10 front side has scraper blade 24, and the scraper blade 24 lower extreme is equipped with the arc and smears the board, and the arc is smeared the board both sides and is equipped with the chamfer angle with conveyer belt 4 matched with respectively.
As shown in fig. 7 and 11, the upper end surface of the pulverized coal can be regulated again through the arranged arc-shaped troweling plate, so that the pulverized coal is more orderly, and the arc-shaped troweling plate is arranged as shown in fig. 11, has a certain radian, and can prevent the pulverized coal from being blocked when being leveled; through the chamfer angle that sets up, can make the both sides department of the dull and stereotyped board of arc closely laminate with conveyer belt 4, improve the leakproofness.
The active sealing door comprises an active sealing door 25 which is obliquely arranged, the active sealing door 25 is hinged to the inner wall of the middle part of the sealing box 10, and the left side and the right side of the lower end of the active sealing door 25 are respectively provided with a chamfered edge matched with the conveyor belt 4.
As shown in fig. 7 and 11, a rotating shaft is fixedly connected to the inner wall of the upper end of the movable sealing door 25, the rotating shaft is rotatably connected to the inner wall of the sealing box 10, and is hinged to the sealing box 10 through the movable sealing door 25, and a cross obstacle exists between the movable sealing door 25 and the conveyor belt 4 when the movable sealing door is turned forwards, so that the movable sealing door 25 can be turned backwards only in a one-way manner, and the movable sealing door 25 can be tightly attached to the conveyor belt 4 through the arranged chamfered edge; when conveyer belt 4 carried buggy and moved backward in the past, can be smooth through the live sealing door 25, because the live sealing door 25 moves down all the time under self gravity, live sealing door 25 bottom can contact the buggy up end all the time, also can follow the high automatically regulated of up end height of the buggy of buggy and change, can carry out one-way sealing to seal box 10 inside, reduces the gas in the gas film coal canopy and leaks outward.
The active sealing plate further comprises a curtain door matched with the conveyor belt 4, the curtain door comprises a long shaft 38, the long shaft 38 is fixedly connected to the inner wall of the rear side of the sealing box 10, and a plurality of belt curtains 26 are rotatably connected to the outer surface of the long shaft 38.
As shown in fig. 7 and 11, the belt curtain 26 has a certain width, two adjacent belt curtains 26 are tightly installed, the belt curtain 26 is turned over upwards for a short distance when the pulverized coal passes through the belt curtain 26, and the belt curtains 26 are self-adaptively sealed according to specific positions and different heights of the upper end surface of the pulverized coal through the arranged belt curtains 26, so that further sealing work is performed.
As shown in fig. 12-13, triangular clamping grooves matched with the corresponding trapezoidal sliding blocks 34 are respectively formed on the end surfaces of the outer sides of the vertical plates 27, and the sealing box 10 can be prevented from moving by the engagement of the triangular clamping grooves and the trapezoidal sliding blocks 34, so that the sealing box 10 is fixed on the base 1; the trapezoidal slider 34, the extension box 37, the spring 35, the anti-falling plate 33, the connecting rod 32 and the handle 28 are installed and shaped as shown in fig. 12, the trapezoidal slider 34 and the anti-falling plate 33 are connected to the inner wall of the corresponding extension box 37 in a left-right sliding mode, the anti-falling plate 33 and the trapezoidal slider 34 can have inward driving force through the self elastic force of the spring 35, and therefore the trapezoidal slider 34 and the triangular clamping groove are stably meshed; the handle 28, the short cam 29, the short sliding pin 31 and the circular sleeve 30 are installed and shaped as shown in fig. 13, when the handle 28 is rotated, the short cam 29 is driven to rotate, the short cam 29 rotates, the short sliding pin 31 can synchronously move outwards through meshing with the short sliding pin 31, and when the short sliding pin 31 moves outwards, the corresponding circular sleeve 30 is driven to move outwards; when needing to dismantle seal box 10, through twist grip 28, can make ring cover 30 under the meshing of short cam 29 and short sliding pin 31, connecting rod 32 moves to the outside and then can drive corresponding anticreep board 33, trapezoidal slider 34 moves to the outside, and compression spring 35, when trapezoidal slider 34 moves to the outside and breaks away from meshing with the triangle draw-in groove, then corresponding seal box 10 can take off the dismantlement, it can with the meshing once more to make trapezoidal slider 34 and triangle draw-in groove mutually through drive seal box 10 when needs are installed, no longer describe repeatedly.
A use method of a sealing device of a coal conveying trestle of a gas film coal shed comprises the following steps:
s1, the device is moved to a designated position, the coal dust can stably move along with the conveyor belt 4 through the matching of the concave conveying mechanism and the conveyor belt 4, and the upper end face of the coal dust can be leveled through a leveling mechanism;
s2, multiple sealing can be performed on the device during coal powder transportation through multiple active sealing doors matched with the coal powder.
When the coal conveying trestle is used, the coal conveying trestle is communicated from the outside to the inside of the air film coal shed, and the conveying belt is arranged in the coal conveying trestle; the coal conveying belt is completely sealed in the conveying process and is connected with the sealing device; the interior of the sealing device is divided into three parts: leveling the coal powder in the first step to ensure that the coal powder on the belt is uniform and is consistent with the sealing gap at the 24 position of the scraper plate; the second sealing is of a rotating shaft type, and when the coal powder is normally thrown into service, the sealing plate is in contact with the coal powder leveled in the first sealing, so that secondary sealing is realized; meanwhile, the second seal can also ensure the seal of the belt in an idle or stop state; the third seal is a running seal, a belt curtain 26 is fully distributed on the rotating shaft and is tightly combined with the pulverized coal of the conveying belt, so that the sealing effect is achieved; the outer part of the sealing device is a box body type, so that the belt is limited axially and radially before entering the sealing device for first sealing in order to prevent the belt from deviating in the running process, and meanwhile, a soft sealing strip and a polyethylene wear-resisting plate are adopted at the sealing position of the belt, so that the wear of the sealing device on the belt is reduced, the frequency of replacing the sealing strip and the wear-resisting plate is reduced, and the service life of the belt is prolonged; the tightness of the transmission part is ensured through multiple sealing, the coal conveying belt is limited and leveled, the deviation and abrasion of the belt are prevented, and the service life of the sealing part is prolonged; the belt passing through the trestle is fully sealed, so that the dust pollution of the pulverized coal is reduced, the cost is saved, and the economic and environmental benefits of enterprises are improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The utility model provides a coal conveying landing stage sealing device of gas film coal canopy, includes base (1), its characterized in that: rotatable belt pulley is installed respectively to base (1) upper end both sides, and the cover has conveyer belt (4) on two belt pulley surfaces, and base (1) middle part is equipped with a plurality ofly and conveyer belt (4) matched with spill transport mechanism, is equipped with seal box (10) on the spill transport mechanism, and seal box (10) lower extreme one side is equipped with can be to the mechanism of loosing of buggy flattening, and seal box (10) lower extreme opposite side is equipped with multichannel and active sealing door of buggy matched with.
2. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, wherein: base (1) middle part is equipped with a plurality of backup pads (5), spill transport mechanism installs respectively on backup pad (5) that correspond, spill transport mechanism includes special-shaped bearing frame (6) of two rigid couplings in backup pad (5) up end, two special-shaped bearing frame (6) inboard rotations are connected with one first cylinder (8), two special-shaped bearing frame (6) outsides rotate respectively and are connected with second cylinder (9) to the slope of upper end outside, the outside end of second cylinder (9) rotates respectively and is connected with side bearer (7), the equal rigid coupling in bottom of side bearer (7) is on base (1).
3. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, wherein: dredge flat-bed machine and construct support frame (15) including the rigid coupling at seal box (10) inner wall, seal box (10) upper end surface rigid coupling has first motor (11), first motor (11) output rigid coupling has little band pulley (12), little band pulley (12) lower extreme area is connected with big band pulley (13), coaxial rigid coupling has long cam (14) on big band pulley (13), support frame (15) inner wall sliding connection has long slide (16), long slide (16) upper end surface rigid coupling has with long cam (14) matched with first sliding pin (17), long slide (16) lower extreme is installed and is dredged and sweep board (18).
4. The sealing device of the coal conveying trestle of the gas film coal shed as claimed in claim 3, characterized in that: the dredging and sweeping plate (18) is hinged to the rear side of the lower end of the long sliding plate (16), the front side of the upper end of the long sliding plate (16) is connected with a small straight gear (19) in a rotating mode, a long rack (20) fixedly connected with the supporting frame (15) is meshed on the outer surface of the small straight gear (19), the lower end of the small straight gear (19) is coaxially and fixedly connected with a crank (21), a long pin (22) is fixedly connected to the inner wall of the other end of the crank (21), and a long key groove (23) matched with the long pin (22) is formed in the front side of the surface of the upper end of the dredging and sweeping plate (18).
5. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, wherein: the inner wall of the front side of the seal box (10) is fixedly connected with a scraper (24), the lower end of the scraper (24) is provided with an arc-shaped troweling plate, and two sides of the arc-shaped troweling plate are respectively provided with a bevel angle matched with the conveyor belt (4).
6. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, characterized in that: the active sealing door comprises a movable sealing door (25) which is obliquely arranged, the movable sealing door (25) is hinged to the inner wall of the middle part of the sealing box (10), and the left side and the right side of the lower end of the movable sealing door (25) are respectively provided with a chamfered edge matched with the conveying belt (4).
7. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, wherein: the active sealing plate further comprises a curtain door matched with the conveyor belt (4), the curtain door comprises a long shaft (38), the long shaft (38) is fixedly connected to the inner wall of the rear side of the sealing box (10), and a plurality of belt curtains (26) are rotatably connected to the outer surface of the long shaft (38).
8. The sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, characterized in that: both sides are the rigid coupling respectively around both ends inner wall about seal box (10) have extension case (37), extension case (37) inner wall sliding connection respectively has trapezoidal slider (34), base (1) upper end surface left and right sides rigid coupling respectively has two with trapezoidal slider (34) matched with riser (27) that correspond, both ends surface middle part rotates respectively about seal box (10) and is connected with handle (28), the rigid coupling has short cam (29) respectively on handle (28) surface, overlap respectively on short cam (29) surface has ring cover (30), both ends inner wall is the rigid coupling respectively around ring cover (30) has short sliding pin (31) with short cam (29) engaged with, both ends are the rigid coupling respectively around ring cover (30) surface have connecting rod (32), on connecting rod (32) outside terminal surface respectively the rigid coupling have with extension case (37) sliding connection's anticreep board (33), trapezoidal slider (34) respectively the rigid coupling on corresponding anticreep board (33), extension case (37) bottom inner wall is the rigid coupling respectively has and has corresponding anticreep board (33) matched with anticreep board (35).
9. The use method of the sealing device for the coal conveying trestle of the gas film coal shed as claimed in claim 1, characterized in that: the method comprises the following steps:
s1, the device is moved to a designated position, coal dust can stably move along with a conveyor belt (4) through the matching of a concave conveying mechanism and the conveyor belt (4), and the upper end face of the coal dust can be leveled through a leveling mechanism;
s2, multiple sealing can be performed when the device transports the pulverized coal through the arranged multiple active sealing doors matched with the pulverized coal.
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| CN202310074435.XA CN115818128A (en) | 2023-02-07 | 2023-02-07 | Sealing device for coal conveying trestle of gas film coal shed and using method |
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| CN202310074435.XA CN115818128A (en) | 2023-02-07 | 2023-02-07 | Sealing device for coal conveying trestle of gas film coal shed and using method |
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Cited By (1)
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