CN217698525U

CN217698525U - Coal mine dust removal device

Info

Publication number: CN217698525U
Application number: CN202220942341.0U
Authority: CN
Inventors: 刘海滨
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-11-01
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a coal mine dust removal device, which relates to the technical field of coal mines. The suction fan unit and the air outlet pipe for exhausting fresh air, the aforementioned components are separate modules and can be disassembled and sealed at the interface where the airflow flows along the suction direction. The dust removal device is divided into different independent modules according to their functions, which is convenient for disassembly and handling, and can be flexibly applied to various dust removal sites, especially for areas with limited space. According to the pollution degree and dust removal requirements, the dust removal modules can be combined flexibly, which is convenient to use.

Description

Coal mine dust removal device

Technical Field

The utility model relates to a colliery technical field, in particular to colliery dust collector.

Background

Coal mines can produce a large amount of coal dust in the production process, the coal dust can not only pollute the atmospheric environment, but also seriously harm the health of coal mine workers, and therefore, the problem of how to effectively reduce the quantity and concentration of dust becomes the concern of coal mine enterprises. The general coal mine operation space is limited, and especially the underground operation is inconvenient for carrying out dust removal work.

The existing dust removal equipment is large in size and cannot enter a narrow area to remove dust, dust-proof water pipelines are arranged by common dust removal means in an existing underground roadway, dust in the roadway around is cleaned by carrying soft water pipes by operating personnel, and the dust removal efficiency is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a coal mine dust collector to among the prior art in the colliery operation area that has the space restriction, the inconvenient and low problem of dust collection efficiency of dust removal.

The above technical object of the present invention can be achieved by the following technical solutions:

a coal mine dust removal device, comprising:

the dust-removing device comprises an air suction pipe, a dust-removing device for removing large-particle dust, a filtering device for removing fine particles, a suction fan set for providing power for air flow and an air outlet pipe for removing fresh air, wherein each part is an independent module and is in detachable sealing connection with an interface where the air flow flows along the air suction direction.

Adopt above-mentioned technical scheme, this dust collector is equipped with the dust device who clears away the large granule dust and clears away the filter equipment of tiny granule, the two-stage filtration, filtration efficiency is higher, the breathing pipe, dust device, filter equipment, suction fan group and outlet duct are the independent module transport of being convenient for, it also can be current smoothly in the limited region in space, reach the interface sealing connection that the dust removal place flowed through the air current according to the direction of breathing in, remove dust, dismantle its interface connection after the dust removal is accomplished, divide the module to remove the transport, the device dust collection efficiency is high, strong in the limited region trafficability characteristic in space.

Preferably, the dust falling device comprises a dust falling box, a cyclone filter arranged in the dust falling box, and a dust collecting box connected with a dust outlet at the bottom of the cyclone filter, wherein the dust falling box is provided with an air inlet and an air outlet which are respectively connected with the air inlet and the air outlet of the cyclone filter.

Adopt above-mentioned technical scheme, cyclone filter utilizes centrifugation and density difference principle, and the air current gets into the back from the tangential, produces rotary motion, and the big granule dust of density moves down and gets into the dust collection box, and the air that the density is little moves up, and the device simple structure, the resistance is little, can effectively clear away the big granule dust in the air.

Preferably, the bottom shell of the dust collection box and the dust fall box share the bottom shell and the side wall, the bottom shell is in threaded connection with the side wall, a knob fixed with the bottom shell is arranged at the bottom of the bottom shell, and a transparent observation port is formed in the side wall.

Adopt above-mentioned technical scheme, the dust capacity in the dust collection box is looked over to operating personnel accessible transparent viewing aperture, in time carries out the deashing, and the rotatory knob of screw thread looseness direction between drain pan and lateral wall is opened drain pan dust and is got into external equipment and carry out centralized processing, convenient operation during the deashing.

Preferably, the coal mine dust removal device further comprises a spraying device, wherein the spraying device comprises a spraying box, a venturi arranged in the spraying box, a water suction pipe with one end connected with the throat of the venturi, and a water tank with the other end extending into the bottom of the water suction pipe from an opening of the water suction pipe, the spraying box is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively connected with the air inlet and the air outlet of the venturi, and the spraying device is arranged between the air suction pipe and the dust falling device and is detachably and hermetically connected with an interface where air flows along the air suction direction.

Adopt above-mentioned technical scheme, spray the air and can increase the weight of dust granule in the air, be convenient for at the interior centrifugation dust fall of dust device, can increase dust device's filtration efficiency. The air current flows through the venturi tube and the water in the water tank is sucked into the venturi tube through the negative pressure generated at the throat part and then mixed and atomized with the air, the venturi tube replaces a water pump to suck water, the structure is simple, and energy is saved.

Preferably, the water tank and the spray tank share a side wall, a water inlet pipe and a liquid level indicator are arranged on the side wall of the water tank, a water inlet valve is arranged on the water inlet pipe, and the liquid level indicator is a slender pipe with one end communicated with the bottom of the water tank and the other end communicated with the top of the water tank.

By adopting the technical scheme, water in the water tank enters the liquid level indicator through the communicating port at the bottom, and according to the principle of the communicating device, the liquid level height in the liquid level indicator is the liquid level height in the water tank. An operator observes the water level in the water tank through the liquid level indicator, water can be supplemented in time when the water quantity is insufficient, the water inlet pipe is communicated with an external water source to open the water inlet valve when the water is supplemented, and external water flows into the water tank. The device is simple to operate, and can directly learn the water level condition in the water tank.

Preferably, the coal mine dust removal device further comprises an ash suction cover connected with the inlet of the air suction pipe, a filter screen for filtering coal carbon is arranged at the ash suction end of the ash suction cover, and the air suction pipe is a telescopic corrugated pipe.

Adopt above-mentioned technical scheme, the suction hood can increase the area of breathing in, and the filter screen can prevent that coal from getting into dust collector, and breathing pipe shrink portable, the extension is convenient for arrive and is breathed in apart from dust collector's dust removal region far away, especially can't get into to the narrow and small regional dust collector in space, and the breathing pipe of extension can arrive, and the bellows is flexible big, and the flexible operation is convenient.

Preferably, the filtering device is an air filter provided with a multi-stage filtering element.

By adopting the technical scheme, the air flow coarsely filtered by the dust falling device is left on the surface of the filter element by the filter element in the filtering device, the clean air flows out, and the multistage filtering efficiency is higher.

The preferred, be equipped with on the filter equipment shell on a parallel with air current direction terminal surface with the filter core terminal surface just is greater than filter core end face area's dimension is protected mouthful, be equipped with on the dimension is protected mouthful and to make the filter core two-way through and at the perpendicular to the restriction in the dimension is protected mouthful direction the checkpost that the filter core removed, the filter core is on a parallel with air current direction's tip be the wedge, with the just opposite shell inboard sliding connection of dimension is protected mouthful have with filter core wedge face matched with wedge kicking block, its long terminal surface is arranged in the filter core windward side, its short terminal surface with the filter core terminal surface offsets, wedge kicking block one end is connected with along the air current direction flexible and can pull the pressure spring of wedge kicking block at air current direction reciprocating sliding.

Adopt above-mentioned technical scheme, when the too much influence filtration efficiency of accumulational dust in filter core surface, the atmospheric pressure increase of filter core front end, reach the limit value when atmospheric pressure, promote pressure spring work, overcome frictional force and checkpost connection's elasticity between the wedge face and promote the wedge kicking block along the slide that is connected with the shell and slide in the air current direction, the wedge face relative slip of its wedge face and filter core, its long terminal surface promotes the filter core and moves towards the maintenance mouth and push away the checkpost and shift out filter equipment, operating personnel can in time maintain the filter core and change, make it accomplish the filter core maintenance under the circumstances of not shutting down.

Preferably, the filter element comprises a fixed frame and a plurality of cores detachably mounted on the fixed frame.

By adopting the technical scheme, the airflow flows through the filter element and the dust is not uniformly left on the surface of the filter element, the filter element is arranged into a plurality of cores which are detachably arranged on the fixing frame, and the cores which are seriously blocked are only needed to be dismounted for maintenance during maintenance, so that the cost is saved. For the scene that needs to continue work, need prepare reserve filter core and in time change, divide into a plurality of cores with the filter core, portable.

Preferably, the air inlet of the filtering device is connected with a drying device.

Adopt above-mentioned technical scheme, when combination atomizer used, contain vapor in atomizer's the air of flowing through, directly can make the filter core become moist through the filter core, influence filter core filtration efficiency and life. The drying device can remove moisture in the air before entering the filtering device, and protect the filter element.

The utility model discloses following beneficial effect has: this dust collector is equipped with spraying, dust fall and filter equipment, carries out the multistage filtration to the dust, and filtration efficiency is high. Each unit is arranged into a detachable independent module, so that the dust removal device is convenient to transport and beneficial to entering a place with limited space for dust removal. The maintenance is timely and convenient.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a perspective view of the spraying device;

FIG. 3 is a perspective view of a dust reduction device;

FIG. 4 is a perspective view of the filter assembly;

fig. 5 is a front view of the cartridge.

Reference number legend, 1, suction duct; 2. a dust falling device; 21. a dust falling box; 22. a cyclone filter; 23. a dust collection box; 24. a knob; 3. a filtration device; 31. a filter element; 311. a core; 312. a frame; 32. a housing; 33. a clip; 34. a wedge-shaped top block; 35. a pressure spring; 4. a fan suction unit; 5. an air outlet pipe; 6. a dust suction cover; 7. a filter screen; 8. a spraying device; 81. a spray box; 82. a venturi; 83. a suction pipe; 84. a water tank; 85. a water inlet pipe; 86. a water inlet valve; 87. a liquid level display; 9. and (7) a drying device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

A coal mine dust removal device is shown in figure 1 and comprises an air suction pipe 1, a dust falling device 2, a filtering device 3, a suction fan set 4 and an air outlet pipe 5. The air suction unit 4 is electrified, air enters the dust falling device 2 from the air suction pipe to remove large-particle dust, fine particles are removed through the filtering device 3, and fresh air flows out of the air outlet pipe 5. The dust removal device has the advantages that each part is an independent module, each module can be detached firstly in a place with limited space, the occupied space is small, the carrying is convenient, and each module is connected with the interface through which airflow flows along the air suction direction in a sealing mode when arriving at a dust removal place to perform dust removal work. The device has high dust removal efficiency and convenient carrying, and is also suitable for removing dust in a region with limited space.

In this embodiment, as shown in fig. 1, the air intake pipe 1 is a flexible bellows, and the inlet of the air intake pipe is further connected with an ash suction cover 6, and the ash suction cover 6 is provided with a filter screen 7 for filtering coal at an ash suction end.

A spraying device 8 is further disposed between the air suction pipe 1 and the dust falling device 2, and as shown in fig. 2, the spraying device comprises a spraying tank 81, a venturi 82, a water suction pipe 83, a water tank 84, a water inlet pipe 85, a water inlet valve 86, and a liquid level indicator 87. The spray box 81 is a closed box provided with an air inlet and an air outlet, the venturi 82 is arranged in the spray box 81, the air inlet and the air outlet of the venturi 82 are respectively connected with the air inlet and the air outlet on the spray box 81, the lower area of the venturi 82 in the spray box 81 is closed to form a water tank 84, one end of the water suction pipe 83 is connected with the throat of the venturi 82, the other end of the water suction pipe extends into the bottom of the water tank 84 from the opening of the water tank 84, the water inlet pipe 85 is arranged on the side wall of the upper part of the water tank 84, a water inlet valve 86 is arranged on the water inlet pipe 85, and the liquid level indicator 87 is a slender pipe which is arranged on the side surface of the water tank 84, one end of the slender pipe is communicated with the bottom of the water tank 84, and the other end of the slender pipe is communicated with the top of the water tank 84.

As shown in fig. 3, the dust falling device 2 includes a dust falling box 21, a cyclone filter 22, a dust collecting box 23, and a knob 24. The dust falling box 21 is a closed box provided with a side air inlet and an upward air outlet, the cyclone filter 22 is arranged inside the dust falling box 21, the air inlet and the air outlet of the cyclone filter are respectively connected with the air inlet and the air outlet of the dust falling box 21, the bottom ash outlet of the cyclone filter is connected with the dust collecting box 23, the dust collecting box 23 is a closed area at the lower end of the cyclone filter 22 in the dust falling box 21, a transparent observation port is arranged on the side wall of the dust collecting box 23, the bottom shell of the dust collecting box 23 is in threaded connection with the side wall, and the knob 24 is fixed on the bottom shell of the dust collecting box 23.

As shown in fig. 1, a drying device 9 is connected between the dustfall device 2 and the filter device 3.

As shown in fig. 4 to 5, the filter device 3 is an air cleaner provided with a multi-stage filter cartridge, and includes a cartridge 31, a housing 32, a clip 33, a wedge-shaped top block 34, and a pressure spring 35. The filter element 31 has a generally rectangular overall configuration and comprises a fixed frame 312 and a plurality of cores 311 removably mounted on the fixed frame 312, the fixed frame 312 being wedge-shaped at the end parallel to the direction of air flow. The primary effect filter element, the intermediate effect filter element and the high-efficiency filter element are arranged in sequence along the air flow direction, and the filtering precision of the filter elements is increased in sequence. The shell 32 is provided with an air inlet and an air outlet on the end face through which the air flow passes, a rectangular maintenance opening is arranged on one end face parallel to the air flow direction, the maintenance opening is opposite to the side face of the filter element 31 and is larger than the area of the side face of the filter element 31, and the clamp 33 is a cantilever part with one end elastically hinged with the side face of the maintenance opening. The wedge-shaped top block 34 is connected with the inner side of the shell 32 right opposite to the maintenance opening in a sliding mode, the wedge surface of the wedge-shaped top block is matched with the wedge surface of the filter element 31, the long end face of the wedge-shaped top block is arranged on the windward side of the filter element 31, and the wedge-shaped top block 34 can move back and forth in the air flow direction along a slide way connected with the shell 32. The extension direction of the pressure spring 35 is consistent with the air flow direction, one end of the pressure spring is connected with the short end face of the wedge-shaped top block 34, and the other end of the pressure spring is connected with the shell 32. After the filter element 31 is installed, the inner side surface of the clip 33 abuts against the end surface of one side of the filter element 31, the short end surface of the wedge-shaped top block 34 abuts against the end surface of the other side of the filter element 31, the wedge-shaped top block 34 is static under the traction of the pressure spring 35, when the filter element 31 is normally used, the air pressure of the windward side is not enough to push the pressure spring 35 to work, the wedge-shaped top block 34 keeps static under the traction of the pressure spring 35, and when the filter element 31 reaches the maintenance working condition, the air pressure of the windward side is increased to overcome the elastic force of the pressure spring 35, the friction force between wedge faces and the elastic force of an elastic hinge connected with the clip 33 to push the wedge-shaped top block 34 to slide along a slide way connected with the shell 32.

When the dust removal device removes dust in an area limited by the space, all modules of the dust removal device are independently transported, and after the dust removal device reaches a dust removal place, the air inlets and the air outlets of all modules are sequentially connected through the short-circuit rubber tubes according to the air flow direction. The air suction unit 4 is connected with an external power supply, the length of the air suction pipe 1 is adjusted, the air suction cover 6 is aligned to a dust removal area, a switch of the air suction unit 4 is opened to start air suction, air with dust filters coal through the filter screen 7, the air enters the air inlet of the spraying device 8 through the air suction pipe, air flow passes through the venturi 82, negative pressure is generated at the throat of the venturi 82 to suck water in the water tank 84 into the venturi 82 and mix and atomize the water with the air, the weight of the dust in the air is increased, the atomized air flows out of the air outlet of the spraying device 8 to enter the dust falling device 2, the air enters the cyclone filter 22 from the air inlet in a tangential direction, dust with larger mass in the air sinks into the dust collecting box 23 under the centrifugal action, the air flow carries small-particle dust, the small-particle dust flows out of the air outlet to enter the drying device 9, the wet air is dried and enters the filtering device 3, the filter element 31 further filters the air, the small-particle dust is intercepted by the filter element, fresh air flows out of the air outlet, and dust removal is completed. And after the dust removal is finished, removing the short-circuit rubber pipes, separating the modules and facilitating the removal.

In the dust removal process, an operator can timely supply water to the water tank by observing the liquid level height of the liquid level indicator 87, and when the water is supplied, the water inlet pipe 85 is connected with an external water source, and the water inlet valve 86 is opened to supply water. Similarly, an operator checks the dust capacity through a viewing port on the dust collection box 23, rotates the knob 24 in the direction of loosening the threads between the bottom shell and the side walls of the dust collection box 23, and opens the bottom shell of the dust collection box 23 to clean dust in time. After the filtering device 3 is connected with the dust falling device 2, the airflow flows into the filtering device 3 from the dust falling box 21 to the upward air outlet, and the airflow direction in the filtering device 2 is from bottom to top. The new filter element 31 is pushed to overcome the elasticity of the elastic hinge connected with the clamp 32, the filter element is installed into the shell 32 from the maintenance port on the shell 32, after the installation, the inner side surface of the clamp 33 at one side end of the filter element 31 is propped against, and the end surface at the other side is propped against the short end surface of the wedge-shaped top block 34, so that the movement of the filter element 31 in the direction vertical to the maintenance port is limited. After working for a period of time, when the filter element 31 is blocked and needs maintenance, the air pressure in front of the filter element 31 is increased to a limit value, the air flow overcomes the elastic force of the pressure spring 35, the friction force between the wedge surfaces and the elastic force of the elastic hinge connected with the clamp 33, the pressure spring 35 is pushed to work, the wedge-shaped top block 34 moves upwards, the long end surface of the wedge-shaped top block pushes the filter element 31 to move towards the maintenance opening, the wedge surface of the filter element 31 and the wedge surface of the clamp 33 slide relatively, the maintenance opening is ejected out of the filter element 31, and an operator is reminded of maintaining the filter element 31 in time. Maintenance may be performed only on severely clogged cartridges 311.

In this embodiment, the pressure spring 35 is a compression spring, one end of the compression spring is connected with the short end face of the wedge-shaped top block 34, and the other end of the compression spring is connected with the upper portion of the housing 32, when the pressure of the air in front of the filter element 31 is increased to a limited value, the pressure spring 35 compresses upward to drive the wedge-shaped top block 34 to move upward. In other embodiments, the pressure spring 35 is an extension spring, one end of which is connected to the long end face of the wedge-shaped top block 34, and the other end of which is connected to the lower portion of the housing 32, and when the pressure of the air in front of the filter element 31 increases to a limited value, the pressure spring 35 is extended upward to drive the wedge-shaped top block 34 to move upward.

Spray set 8, dust device 2 and filter equipment 3 use simultaneously in this embodiment, filter step by step the air that contains the dust, and filtration efficiency is high, and through spraying dust fall prefilter back, makes the air dust greatly reduced who passes through filter core 31, and increase filter core 31 maintenance cycle, this dust collector use with the great place of dust. In other embodiments, if the environment with better air quality can only use the filtering device 3, the environment with low requirement on dust removal efficiency can only use the dust-settling device 2, and in the environment with little dust and filter efficiency, the dust-settling device 2 and the filtering device can be used in combination, and in places with large dust and fast dust removal, the spraying device 8 and the dust-settling device 2 can also be used in combination.

In this embodiment, pass through the clamp with the short circuit rubber tube between each module and connect, also can establish the air inlet of each module and gas outlet into fast socket, can realize the dismouting fast, in the place of space restriction, also can use long rubber tube to connect, put each dust removal module in the great place in space, the narrow passageway in centre is connected through long rubber tube.

The utility model provides a dust collector divide into different independent modules with it according to the function, and the dismouting of being convenient for, transport can be applicable to various dust removal places in a flexible way, are particularly useful for the limited regional dust removal in space, according to pollution degree and dust removal requirement, can make up dust removal module in a flexible way, and the device also can maintain convenient operation under the circumstances of not shutting down.

The specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention.

Claims

1. A coal mine dust removal device is characterized by comprising:

the dust removing device comprises an air suction pipe (1), a dust falling device (2) for removing large-particle dust, a filtering device (3) for removing fine particles, an air suction fan set (4) for providing power for air flow and an air outlet pipe (5) for removing fresh air, wherein the air suction pipe and the filtering device are independent modules and are detachably and hermetically connected at a joint where the air flow flows along the air suction direction; dust device (2) including falling dirt case (21), arranging in fall dirt case (21) inside whirl filter (22) and with dust collection case (23) that whirl filter (22) bottom ash outlet links to each other, it has air inlet and gas outlet to fall to open on dirt case (21), its respectively with the air inlet of whirl filter (22) links to each other with the gas outlet.

2. A coal mine dust removal device as claimed in claim 1, wherein: the bottom shell of the dust collection box (23) shares the bottom shell and the side wall with the dust falling box (21), the bottom shell is in threaded connection with the side wall, a knob (24) fixed with the bottom shell is arranged at the bottom of the bottom shell, and a transparent observation port is formed in the side wall.

3. A coal mine dust removal device as claimed in claim 1, wherein: the coal mine dust removal device further comprises a spraying device (8) which comprises a spraying box (81), a venturi (82) arranged inside the spraying box (81), a water suction pipe (83) with one end connected with the throat of the venturi (82) and a water tank (84) with the other end of the water suction pipe (83) extending into the bottom of the water suction pipe from the opening of the water suction pipe, wherein an air inlet and an air outlet are formed in the spraying box (81) and are respectively connected with the air inlet and the air outlet of the venturi (82), and the spraying device (8) is arranged between the dust-fall air suction pipe (1) and the dust-fall air suction pipe (2) and is detachably and hermetically connected with a connector where air flows through along the air suction direction.

4. A coal mine dust removal device as claimed in claim 3, wherein: the water tank (84) and the spraying box (81) share the side wall, a water inlet pipe (85) and a liquid level indicator (87) are arranged on the side wall of the water tank (84), a water inlet valve (86) is arranged on the water inlet pipe (85), and the liquid level indicator (87) is a slender pipe with one end communicated with the bottom of the water tank (84) and the other end communicated with the top of the water tank (84).

5. A coal mine dust removal device as claimed in claim 1, wherein: the coal mine dust removal device further comprises an ash suction cover (6) connected with an inlet of the air suction pipe (1), a filter screen (7) for filtering coal carbon is arranged at an ash suction end of the ash suction cover (6), and the air suction pipe (1) is a telescopic corrugated pipe.

6. A coal mine dust removal device as claimed in claim 1, wherein: the filtering device (3) is an air filter provided with a multi-stage filtering filter element.

7. A coal mine dust removal device as defined in claim 6, wherein: filter equipment (3) shell (32) go up be on a parallel with air current direction terminal surface be equipped with filter core (31) terminal surface just is greater than filter core (31) terminal surface area's dimension guarantor mouth, maintain be equipped with on the mouth can make filter core (31) two-way through and at the perpendicular to restrict in the mouth direction maintain checkpost (33) that filter core (31) removed, filter core (31) are on a parallel with air current direction's tip is the wedge, with maintain just opposite shell (32) inboard sliding connection of mouth have with filter core (31) wedge matched with wedge kicking block (34), its long terminal surface is arranged in filter core (31) windward side, its short terminal surface with filter core (31) terminal surface offsets, wedge kicking block (34) one end is connected with along the air current direction flexible and can pull wedge kicking block (34) are at air current direction reciprocating sliding's compression spring (35).

8. A coal mine dust removal device as claimed in claim 7, wherein: the filter element (31) comprises a fixed frame (312) and a plurality of cores (311) which are detachably mounted on the fixed frame (312).

9. A coal mine dust removal device as claimed in claim 6, wherein: and an air inlet of the filtering device (3) is connected with a drying device (9).