CN219519140U - Explosion prevention device for dust collector of coal mill - Google Patents
Explosion prevention device for dust collector of coal mill Download PDFInfo
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- CN219519140U CN219519140U CN202320414840.7U CN202320414840U CN219519140U CN 219519140 U CN219519140 U CN 219519140U CN 202320414840 U CN202320414840 U CN 202320414840U CN 219519140 U CN219519140 U CN 219519140U
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- dust collector
- air inlet
- collector body
- scraping
- pressure relief
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- 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
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Abstract
The utility model relates to the technical field of dust collectors of coal mills, in particular to a device for preventing explosion of the dust collectors of the coal mills, which comprises a dust collector body and a pressure relief assembly arranged on the dust collector body, wherein the pressure relief assembly comprises a pressure relief cylinder, one end of the pressure relief cylinder is provided with an air inlet hole, the air inlet hole is communicated with the dust collector body, a piston plate is arranged in the pressure relief cylinder, one end of the piston plate, which is far away from the air inlet hole, is connected with a piston rod, an elastic piece is sleeved on the piston rod, and the side wall of the piston cylinder is provided with a pressure relief hole; the side of the piston cylinder, which is far away from the air inlet, is provided with a flame-proof air bag filled with inert gas, the flame-proof air bag is provided with a one-way air inlet and a one-way air outlet, the one-way air outlet is communicated with the dust collector body, the one-way air inlet is connected with the air storage container, and the outer end of the piston rod is fixedly connected with a push plate for extruding the flame-proof air bag. The pressure release assembly works to release pressure and simultaneously drives the push plate to extrude the flame-proof air bag, so that inert gas is pressed into the dust collector body, and the pressure release assembly plays a role in pressure release and simultaneously has flame-proof function.
Description
Technical Field
The utility model relates to the technical field of dust collectors of coal mills, in particular to a device for preventing explosion of the dust collectors of the coal mills.
Background
The existing coal mill is used for collecting coal powder through a dust collector (also called a dust collection bin, a dust collection hopper, a coal powder bin and the like) after grinding coal, and has certain explosiveness due to small coal powder particle size, high specific area and high surface energy, and spontaneous combustion of the coal powder is easy to cause.
In the prior art, for example, a patent with publication number of CN216159644U discloses an automatic explosion venting coal powder injection bin, which can automatically release pressure to prevent explosion when the pressure is too high, however, the technical scheme of the patent only plays an explosion-proof role, and is difficult to consider the flame-proof function.
Disclosure of Invention
The utility model aims to provide a device for preventing a dust collector of a coal mill from burning and exploding, so as to solve the technical problem that the prior art is difficult to consider the flame-proof function.
The embodiment of the utility model is realized by the following technical scheme:
the utility model provides a prevent coal pulverizer dust catcher and fire and explode device, includes the dust catcher body, is equipped with the pressure release subassembly on the dust catcher body, the pressure release subassembly includes the pressure release section of thick bamboo, and the one end of pressure release section of thick bamboo is equipped with the inlet port, and the inlet port communicates with the dust catcher body, and the pressure release section of thick bamboo is inside to be equipped with rather than complex piston plate, and the piston plate is kept away from the one end of inlet port and is connected with the piston rod, overlaps on the piston rod and is equipped with the elastic component, and the lateral wall of piston barrel is equipped with the pressure release hole, and under the elastic component natural state, the piston plate is located between inlet port and the pressure release hole;
the side of the piston cylinder, which is far away from the air inlet, is provided with a flame-proof air bag filled with inert gas, the flame-proof air bag is provided with a one-way air inlet and a one-way air outlet, the one-way air outlet is communicated with the dust collector body, the one-way air inlet is connected with the air storage container, and the outer end of the piston rod is fixedly connected with a push plate for extruding the flame-proof air bag.
Optionally, the gas-proof bag is arranged in a protection box, the protection box is fixedly arranged, and the protection box is open relative to one side of the push plate.
Optionally, the inert gas is carbon dioxide.
Optionally, the elastic element is a spring.
Optionally, the inside of dust collector body is equipped with scrapes the material subassembly, scrapes the material subassembly and includes the scraping shaft that rotates with the dust collector top and be connected with the drive assembly that is used for driving its pivoted scraping the top of material shaft, scrapes the lateral wall of material shaft and is connected with a plurality of scraping the material piece along the circumferencial direction, scrapes the material piece and offsets with the lateral wall of dust collector body.
Optionally, the lower part of the dust collector body is in a conical structure.
Optionally, the scraping block comprises a vertical section scraping block and an inclined section scraping block, the vertical section scraping block is propped against the vertical section of the dust collector body, and the inclined section scraping block is propped against the conical section of the dust collector body.
Optionally, the inside of dust collector body is equipped with the brace table in toper section and vertical section junction, and the brace table passes through a plurality of bracing pieces and is connected with the lateral wall of dust collector body, the lower extreme of scraping the material axle rotates with the brace table and is connected.
The utility model has at least the following advantages and beneficial effects: in the utility model, when the pressure in the dust collector body is too high, the pressure relief assembly works, gas in the dust collector body enters the piston cylinder and continuously extrudes the piston plate, and after the piston plate passes through the pressure relief hole, the gas in the dust collector is discharged from the pressure relief hole to relieve pressure, meanwhile, in the process that the piston plate is extruded, the piston plate drives the push plate to move and extrude the flame-proof air bag, inert gas in the flame-proof air bag is pressed into the dust collector body, the proportion of the inert gas in the dust collector body is improved, the flame-proof effect is achieved, namely, the pressure relief assembly works to relieve pressure, meanwhile, the push plate is driven to extrude the flame-proof air bag, and the inert gas is pressed into the dust collector body, so that the flame-proof effect is achieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a device for preventing explosion of a dust collector of a coal mill according to a first embodiment;
FIG. 2 is an enlarged view at A of FIG. 1;
fig. 3 is a schematic structural diagram of a device for preventing explosion of a dust collector of a coal mill according to a second embodiment;
icon: the dust collector comprises a dust collector body, a 101-feeding hole, a 102-discharging hole, a 103-air outlet hole, a 2-pressure relief assembly, a 201-pressure relief cylinder, a 201 a-air inlet hole, a 201 b-pressure relief hole, a 202-piston plate, a 203-piston rod, a 204-elastic piece, a 3-flame-proof air bag, a 301-one-way air inlet, a 302-one-way air outlet, a 4-push plate, a 5-protection box, a 6-scraping assembly, a 601-scraping shaft, a 602-connecting rod, a 603-vertical section scraping block, a 604-inclined section scraping block, a 605-supporting table, a 606-supporting rod, a 7-air inlet pipe, an 8-air outlet pipe, a 9-supporting seat, a 10-motor and a 11-reduction gearbox.
Detailed Description
Example 1
Referring to fig. 1-2, a device for preventing explosion of a dust collector of a coal mill includes a dust collector body 1, it should be understood that the top of the dust collector body 1 has a feed inlet 101, the bottom has a discharge outlet 102, a pressure relief assembly 2 is provided on the dust collector body 1, the pressure relief assembly 2 includes a pressure relief cylinder 201, the pressure relief cylinder 201 is fixed on a supporting seat 9 in this embodiment, the supporting seat 9 is fixedly connected (welded or screwed) to the outside of the dust collector body 1, and it is easy to understand that, in some embodiments, the pressure relief cylinder 201 may also be directly installed on the top of the dust collector body 1.
One end of the pressure release cylinder 201 is provided with an air inlet hole 201a, the air inlet hole 201a is communicated with the dust collector body 1, specifically, the top of the dust collector body 1 of the embodiment is provided with an air outlet hole 103, the air inlet hole 201a is communicated with the air outlet hole 103 through an air outlet pipe 8, a piston plate 202 matched with the air inlet hole is arranged inside the pressure release cylinder 201, one end of the piston plate 202, which is far away from the air inlet hole 201a, is connected with a piston rod 203, an elastic piece 204 is sleeved on the piston rod 203, the side wall of the piston cylinder is provided with a pressure release hole 201b, the piston plate 202 is positioned between the air inlet hole 201a and the pressure release hole 201b in a natural state of the elastic piece 204, the elastic piece 204 is a spring in the embodiment, and the elastic piece 204 can also be an elastic rubber column or the like in other embodiments.
On the basis, when the internal pressure of the dust collector body 1 is too high, gas in the dust collector body 1 enters the piston cylinder and continuously presses the piston plate 202, and after the piston plate 202 passes through the pressure relief hole 201b, the gas of the dust collector is discharged from the pressure relief hole 201b to be relieved, so that an explosion-proof effect is achieved.
The side of the piston cylinder, which is far away from the air inlet 201a, is provided with a gas-proof bag 3 filled with inert gas, the flame-retardant bag is provided with a one-way air inlet 301 and a one-way air outlet 302, and it is easy to understand that one-way air inlet and one-way air outlet can be realized through one-way valves, that is, the one-way air inlet 301 and the one-way air outlet 302 are respectively provided with one-way valves, the one-way air outlet 302 is communicated with the dust collector body 1 through the air inlet pipe 7, the one-way air inlet 301 is connected with a gas storage container (not shown), and the outer end of the piston rod 203 is fixedly connected with a push plate 4 for extruding the flame-proof bag 3.
On the basis, when the pressure relief assembly 2 works to relieve pressure, the piston plate 202 drives the push plate 4 to move and extrude the flame-proof air bag 3 in the process of extruding the piston plate 202, inert gas in the flame-proof air bag 3 is pressed into the dust collector body 1, the proportion of the inert gas in the dust collector body 1 is improved, the flame-proof effect is achieved, namely, when the pressure relief assembly 2 works to relieve pressure, the push plate 4 is driven to extrude the flame-proof air bag 3, the inert gas is pressed into the dust collector body 1, namely, the flame-proof function is achieved while the pressure relief effect is achieved.
The inert gas is carbon dioxide in this example, and it is readily understood that in other embodiments of the utility model, the inert gas may be other inert gases such as nitrogen.
On the basis of the above, the anti-flaming air bag 3 of the embodiment is placed in the protection box 5, the protection box 5 is fixedly arranged, specifically, the protection box 5 is fixedly connected (such as welded or screwed) with the outer side wall of the dust collector body 1, the protection box 5 is open relative to one side of the push plate 4, and it is worth noting that the general position of the anti-flaming air bag 3 can be limited by the arranged protection box 5, so that the anti-flaming air bag 3 is prevented from being extruded in the process of pressing the push plate 4.
Example two
Referring to fig. 3, this embodiment is further optimized based on the first embodiment, specifically, a scraping assembly 6 is disposed in the dust collector body 1 of this embodiment, the scraping assembly 6 includes a scraping shaft 601 rotatably connected to the top of the dust collector, the top of the scraping shaft 601 is connected with a driving assembly for driving the scraping shaft to rotate, specifically, the driving assembly includes a motor 10 and a reduction gearbox 11, an output shaft of the motor 10 is connected with an input end of the reduction gearbox 11, the top of the scraping shaft 601 extends out of the dust collector body 1 and is connected with an output end of a reduction line, an output rotation speed of the motor 10 is reduced by a reduction effect and the scraping shaft 601, and the reduction gearbox 11 adopts a conventional technical means in the art, for example, a reduction is performed by a large-small gear cooperation effect.
The side wall of scraping the material axle 601 is connected with a plurality of scraping blocks along the circumference, the scraping blocks are propped against the side wall of the dust collector body 1, specifically, the scraping blocks are connected with the scraping axle 601 through the connecting rods 602, the number of the connecting rods 602 can be properly increased according to the length of the scraping blocks, in practical application, the scraping blocks are driven to rotate through the scraping axle 601, so that coal dust attached to the side wall of the dust collector body 1 can be scraped, the accumulation of the dust in the dust collector body 1 is avoided, and the phenomenon that no accumulation exists means that no combustion source exists is easily understood, so that the dust collector further plays a role in flame resistance.
The lower part of the dust collector body 1 of the embodiment is of a conical structure so as to facilitate better discharging, a supporting table 605 is arranged in the dust collector body 1 at the joint of the conical section and the vertical section, the supporting table 605 is connected with the side wall of the dust collector body 1 through a plurality of supporting rods 606, and the lower end of the scraping shaft 601 is rotationally connected with the supporting table 605; it is worth noting that, the arrangement is convenient for simultaneously supporting the upper end and the lower end of the scraping shaft 601, so that the scraping shaft 601 rotates more stably.
On the basis that the lower part of the dust collector body 1 is in a conical structure, the scraping blocks comprise a vertical section scraping block 603 and an inclined section scraping block 604, the vertical section scraping block 603 is propped against the vertical section of the dust collector body 1, and the inclined section scraping block 604 is propped against the conical section of the dust collector, namely the two groups of scraping blocks facilitate scraping the vertical section and the inclined section of the dust collector body 1.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides a prevention coal pulverizer dust arrester fires device, includes dust arrester body (1), is equipped with pressure release subassembly (2), its characterized in that on dust arrester body (1): the pressure relief assembly (2) comprises a pressure relief cylinder (201), an air inlet hole (201 a) is formed in one end of the pressure relief cylinder (201), the air inlet hole (201 a) is communicated with the dust collector body (1), a piston plate (202) matched with the air inlet hole is arranged in the pressure relief cylinder (201), a piston rod (203) is connected to one end, far away from the air inlet hole (201 a), of the piston plate (202), an elastic piece (204) is sleeved on the piston rod (203), a pressure relief hole (201 b) is formed in the side wall of the piston cylinder, and the piston plate (202) is located between the air inlet hole (201 a) and the pressure relief hole (201 b) in a natural state of the elastic piece (204);
one side of the piston cylinder, which is far away from the air inlet (201 a), is provided with a flame-proof air bag (3) filled with inert gas, the flame-proof air bag is provided with a one-way air inlet (301) and a one-way air outlet (302), the one-way air outlet (302) is communicated with the dust collector body (1), the one-way air inlet (301) is connected with a gas storage container, and the outer end of the piston rod (203) is fixedly connected with a push plate (4) for extruding the flame-proof air bag (3).
2. The coal pulverizer dust collector explosion prevention device of claim 1, wherein: the anti-flaming air bag (3) is arranged in the protection box (5), the protection box (5) is fixedly arranged, and the protection box (5) is open relative to one side of the push plate (4).
3. The coal pulverizer dust collector explosion prevention device of claim 1, wherein: the inert gas is carbon dioxide.
4. The coal pulverizer dust collector explosion prevention device of claim 1, wherein: the elastic piece (204) is a spring.
5. The coal pulverizer dust collector explosion prevention device according to any one of claims 1 to 4, wherein: the dust collector is characterized in that a scraping assembly (6) is arranged in the dust collector body (1), the scraping assembly (6) comprises a scraping shaft (601) rotationally connected with the top of the dust collector, a driving assembly for driving the scraping shaft (601) to rotate is connected to the top of the scraping shaft, a plurality of scraping blocks are connected to the side wall of the scraping shaft (601) along the circumferential direction, and the scraping blocks are abutted against the side wall of the dust collector body (1).
6. The coal pulverizer dust collector explosion prevention device of claim 5, wherein: the lower part of the dust collector body (1) is in a conical structure.
7. The coal pulverizer dust collector explosion prevention device of claim 6, wherein: the scraping block comprises a vertical section scraping block (603) and an inclined section scraping block (604), the vertical section scraping block (603) is propped against the vertical section of the dust collector body (1), and the inclined section scraping block (604) is propped against the conical section of the dust collector body (1).
8. The coal pulverizer dust collector explosion prevention apparatus of claim 7, wherein: the dust collector is characterized in that a supporting table (605) is arranged at the junction of the conical section and the vertical section in the dust collector body (1), the supporting table (605) is connected with the side wall of the dust collector body (1) through a plurality of supporting rods (606), and the lower end of the scraping shaft (601) is rotationally connected with the supporting table (605).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320414840.7U CN219519140U (en) | 2023-03-07 | 2023-03-07 | Explosion prevention device for dust collector of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320414840.7U CN219519140U (en) | 2023-03-07 | 2023-03-07 | Explosion prevention device for dust collector of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219519140U true CN219519140U (en) | 2023-08-15 |
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ID=87634177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320414840.7U Active CN219519140U (en) | 2023-03-07 | 2023-03-07 | Explosion prevention device for dust collector of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219519140U (en) |
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2023
- 2023-03-07 CN CN202320414840.7U patent/CN219519140U/en active Active
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