CN216259778U - Heavy-medium coal dust treatment device - Google Patents
Heavy-medium coal dust treatment device Download PDFInfo
- Publication number
- CN216259778U CN216259778U CN202122201361.0U CN202122201361U CN216259778U CN 216259778 U CN216259778 U CN 216259778U CN 202122201361 U CN202122201361 U CN 202122201361U CN 216259778 U CN216259778 U CN 216259778U
- Authority
- CN
- China
- Prior art keywords
- dust
- collection box
- outlet
- box
- transfer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a heavy-medium coal dressing dust treatment device, belongs to the field of coal dressing, and aims to effectively avoid dust raise in the coal dressing process. Comprises a flotation tank and a dust remover, wherein the dust remover comprises a dust removing fan and a dust collecting box; the dust collecting box is a hollow box body with an open top, and the inner bottom wall of the hollow inner cavity is an inclined plane; an outlet I is arranged at the intersection of the inner side wall and the bottom end of the inner bottom wall; a water spraying channel is arranged on the side wall of the dust collection box; the dust collection box is arranged below the dust removal fan along the vertical direction, and the top opening of the dust collection box is hermetically connected with the dust outlet of the dust removal fan; and a closed connecting channel is arranged between the flotation tank and the dust collecting box, one end of the connecting channel is connected with the first outlet, and the other end of the connecting channel extends downwards in an inclined mode and is connected with the flotation tank. The dust is pumped and discharged by the dust removal fan, the water spraying channel on the dust collection box sprays water for dust reduction, and the slime water is conveyed into the flotation tank in the closed connecting channel to play a role in controlling dust flying.
Description
Technical Field
The utility model belongs to the field of coal separation, and particularly relates to a heavy-medium coal separation dust treatment device.
Background
Coal produces a large amount of coal dust at screening, crushing and tape transfer points. Since the fallen coal dust cannot be cleaned, secondary flying of the coal dust is serious, and the dust is generated most in the concrete processes of coal dressing, such as transportation, crushing, screening, cleaning and goods accumulation. The main reasons for serious environmental dust pollution are as follows: 1. the moisture content of the coal is low (when the moisture content of the coal is lower than 6%, the coal dust is seriously lifted); 2. dust points do not have ventilation dust removal equipment, and dust can not be effectively controlled: 3. coal drops at a transfer point, the landing stage ground and dead surfaces of some dead corners are accumulated to generate secondary dust flying; 4. the belt conveyor is abnormally operated (off tracking and untight sealing) to cause serious coal breakage of the belt.
A coal washing workshop of a certain company adopts a heavy-medium coal separation process, and raw coal is conveyed to a raw coal preparation system through a belt conveyor and then enters screening, manual separation and crushing operations. The main equipment comprises: a raw coal sieve, 4 belt conveyors and a powerful crusher. The fall between the raw coal screen and the transfer belt is up to 15 meters. The chute angle between the crusher and the transfer belt is almost vertical. In addition, due to the limitation of space, the angle of the raw coal chute is small, and the material leakage is serious. When the whole system works, the concentration of air floating dust is high, which not only exceeds the national allowable standard, but also threatens the safety production of workshops and the health of workers all the time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a heavy-medium coal separation dust treatment device which can effectively avoid dust flying in the coal separation process.
The technical scheme adopted by the utility model is as follows: the heavy-medium coal separation dust treatment device comprises a flotation tank and a dust remover, wherein the dust remover comprises a dust removal fan and a dust collection box;
the dust collection box is a hollow box body with an open top, wherein a hollow inner cavity comprises an inner side wall and an inner bottom wall, and the inner bottom wall is an inclined slope; an outlet I which penetrates through the dust collecting box from the hollow inner cavity to the outside is arranged at the intersection of the inner side wall and the bottom end of the inner bottom wall; a water spraying channel communicated with the hollow inner cavity of the dust collecting box is arranged on the side wall of the dust collecting box;
the dust collection box is arranged below the dust removal fan along the vertical direction, and the top opening of the dust collection box is hermetically connected with the dust outlet of the dust removal fan; and a closed connecting channel is arranged between the flotation tank and the dust collecting box, one end of the connecting channel is connected with the first outlet, and the other end of the connecting channel extends downwards in an inclined manner and is connected with the flotation tank.
Further, the water spraying channel is aligned with the top end of the inner bottom wall.
Furthermore, the top opening of the dust collecting box is connected with the dust outlet of the dust removing fan in a sealing way through a cloth cover.
Further, the connecting channel comprises a transfer collection box; the transfer collection box is positioned between the dust collection box and the flotation tank along the vertical direction; and the transfer collection box is positioned between the dust collection box and the flotation tank along the horizontal direction.
Furthermore, the transit collecting box is a closed hollow box body, the cavity of the box body comprises an inner peripheral side wall, an inner top end wall and an inner bottom end wall, and the inner bottom end wall is an inclined plane; a bottom outlet which penetrates through the transfer collection box from the cavity to the outside is arranged at the intersection of the inner peripheral side wall and the bottom end of the inner bottom end wall; a top inlet which penetrates through the transfer collection box from the cavity to the outside is arranged at the intersection of the inner peripheral side wall and the inner top end wall; along the horizontal direction, the top inlet and the bottom outlet are respectively arranged at the left side and the right side of the transit collection box; the top inlet is hermetically connected with the first outlet of the dust collection box; the bottom outlet is communicated with the flotation tank.
Furthermore, a first connecting pipe is arranged between the transfer collecting box and the dust collecting box, one end of the first connecting pipe is connected to the first outlet of the dust collecting box, and the other end of the first connecting pipe is connected to the top inlet of the transfer collecting box in an inclined and downward manner;
and a second connecting pipe is arranged between the transfer collecting box and the flotation tank, one end of the second connecting pipe is connected to the bottom outlet of the transfer collecting box, and the other end of the second connecting pipe obliquely extends downwards to the flotation tank.
Furthermore, the inclination of the second connecting pipe is smaller than that of the first connecting pipe.
Further, the gradient of the inner bottom wall of the dust collection box is smaller than the gradient of the first connecting pipe, and the gradient is larger than or equal to 45 degrees; the slope of the inner bottom end wall of the transfer collection box is greater than or equal to the slope of the second connecting pipe and is less than or equal to 45 degrees.
The utility model has the beneficial effects that: in the utility model, the dust removal fan is used for pumping away part of coal dust, and the residual coal dust which is not pumped away is discharged into the dust collection box below the dust removal fan through the dust outlet of the dust removal fan. The dust-settling dust-collecting box has the advantages that the dust-settling effect is achieved through the water spraying channel arranged on the dust-collecting box, the coal dust in the dust-collecting box wets and falls when meeting water, and the coal dust and the water are mixed to form coal muddy water. The inner side wall of the hollow inner cavity is obliquely arranged, so that the coal slime water automatically flows to the first outlet along the inner side wall and is conveyed into the flotation tank through the connecting channel. The coal slime water can realize self-flow, can avoid the blockage and siltation, does not need power equipment to apply power to promote the coal slime water to flow, and is more energy-saving. And moreover, water is directly introduced into the dust collecting box to form slime water, the slime water naturally flows downwards, manual operation is not needed, and time and labor are saved.
The dust collecting box is connected with the dust removing fan in a sealing way; a closed connecting channel is arranged between the flotation tank and the dust collecting box for connection, so that the whole conveying process is hermetically controlled, and the coal dust diffusion can be effectively inhibited. One end of the connecting channel is connected with the first outlet, the other end of the connecting channel extends downwards in an inclined mode and is connected with the flotation tank, namely the connecting channel is arranged in an inclined mode, so that the inclination angle of coal flow is reduced, the flow speed of slime water is reduced, and the effect of controlling dust flying is achieved.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
fig. 3 is a partially enlarged view of fig. 1 at B.
In the figure, a dust removal fan 1, a dust outlet 1A, a dust collection box 2, an inner side wall 2A, an inner bottom wall 2B, a hollow inner cavity 2C, a first outlet 2D, a water spraying channel 2E, a cloth cover 3, a transfer collection box 4, a cavity 4A, an inner peripheral side wall 4B, an inner top end wall 4C, an inner bottom end wall 4D, a bottom outlet 4E, a top inlet 4F, a first connecting pipe 5, a second connecting pipe 6 and a flotation tank 7.
Detailed Description
The utility model is further described below with reference to the accompanying drawings:
the heavy medium coal separation dust treatment device comprises a flotation tank 7 and a dust remover as shown in figures 1 and 2, wherein the dust remover comprises a dust removal fan 1 and a dust collection box 2;
the dust collection box 2 is a hollow box body with an open top, wherein a hollow inner cavity 2C comprises an inner side wall 2A and an inner bottom wall 2B, and the inner bottom wall 2B is an inclined plane; an outlet (2D) which penetrates through the dust collecting box (2) from the hollow inner cavity (2C) to the outside is arranged at the intersection of the inner side wall (2A) and the bottom end of the inner bottom wall (2B); a water spraying channel 2E communicated with the hollow inner cavity 2C of the dust collection box 2 is arranged on the side wall of the dust collection box 2;
the dust collection box 2 is arranged below the dust removal fan 1 along the vertical direction, and the top opening of the dust collection box 2 is hermetically connected with the dust outlet 1A of the dust removal fan 1; a closed connecting channel is arranged between the flotation tank 7 and the dust collection box 2, one end of the connecting channel is connected with the first outlet 2D, and the other end of the connecting channel extends downwards in an inclined mode and is connected with the flotation tank 7.
In the utility model, the dust removal fan 1 is used for pumping away part of coal dust, and the residual coal dust which is not pumped away is discharged into the dust collection box 2 below the dust removal fan 1 through the dust outlet 1A of the dust removal fan 1. Because the dust collecting box 2 is provided with the water spraying channel 2E communicated with the hollow inner cavity 2C, the coal dust in the dust collecting box 2 is wetted and dropped in water by spraying water through the water spraying channel 2E, and the coal dust and the water are mixed to form coal slurry water. Because the inside wall 2A slope setting of cavity inner chamber 2C, so, the slime water flows to export 2D along inside wall 2A to carry to flotation tank 7 in through connecting channel.
Because of the higher fall between the dust collecting box 2 and the flotation tank 7, the slime water can realize self-flow, the blockage and siltation phenomena can be avoided, and the slime water can flow without being applied by power equipment, so that the energy is saved. And, directly let in the water and form the slime water with dust collecting box 2, the slime water is naturally downflow, need not manual operation, has practiced thrift time and labour.
The dust collection box 2 is connected with the dust removal fan 1 in a sealing way; a closed connecting channel is arranged between the flotation tank 7 and the dust collecting box 2 for connection, so that the whole conveying process is hermetically controlled, and the coal dust diffusion can be effectively inhibited.
Because one end of the connecting channel is connected with the outlet 2D, and the other end of the connecting channel extends downwards in an inclined mode and is connected with the flotation tank 7, namely the connecting channel is arranged in an inclined mode, the inclination angle of coal flow is reduced, the flow speed of slime water is reduced, and the effect of controlling dust flying is achieved.
The water spray passage 2E may be provided at any position as long as it can spray water into the hollow inner cavity 2C, but, for the purpose of improving efficiency, it is preferable that the water spray passage 2E be provided in alignment with the top end of the inner bottom wall 2B. With the arrangement, the sprayed water acts on the inner bottom wall 2B, and the coal slime water on the inner bottom wall 2B can be accelerated to flow.
In order to avoid the dust leakage at the joint of the dust collection box 2 and the dust removal fan 1 and facilitate the disassembly between the dust collection box 2 and the dust removal fan 1, optimally, the top opening of the dust collection box 2 is hermetically connected with the dust outlet 1A of the dust removal fan 1 through the cloth cover 3.
The pipe may be directly used as the connection passage, but, in order to further enhance the effect of controlling the dust flying, it is preferable that, as shown in fig. 3, the connection passage includes a transit collection box 4; the transfer collection box 4 is positioned between the dust collection box 2 and the flotation tank 7 along the vertical direction; in the horizontal direction, the transfer collection box 4 is located between the dust collection box 2 and the flotation tank 7. The arrangement of the transfer collecting box 4 plays a role in buffering coal slime water flowing from the dust collecting box 2 to the flotation tank 7 on the way, so that the problem of inconvenient maintenance caused by overlong pipelines is avoided, and meanwhile, the final gradient of the coal slime water flowing to the flotation tank 7 is favorably adjusted to control the dust to fly upwards as much as possible.
The transfer collection box 4 is a closed hollow box body, a cavity 4A of the transfer collection box comprises an inner peripheral side wall 4B, an inner top end wall 4C and an inner bottom end wall 4D, and the inner bottom end wall 4D is an inclined plane; a bottom outlet 4E which penetrates through the cavity 4A outwards and is communicated with the transfer collection box 4 is arranged at the intersection of the inner peripheral side wall 4B and the bottom end of the inner bottom end wall 4D; a top inlet 4F which penetrates through the transfer collection box 4 from the cavity 4A to the outside is arranged at the intersection of the inner peripheral side wall 4B and the inner top end wall 4C; along the horizontal direction, the top inlet 4F and the bottom outlet 4E are respectively arranged at the left side and the right side of the transit collection box 4; the top inlet 4F is hermetically connected with the first 2D outlet of the dust collection box 2; the bottom outlet 4E communicates with the flotation cell 7.
This structure, because top entry 4F is located the intersection of interior circumference lateral wall 4B and interior top end wall 4C to with the left and right sides of bottom export 4E separated transfer collecting box 4, make the slime water flow into the top that cavity 4A dropped interior bottom end wall 4D by top entry 4F, compare with setting up top entry 4F in other positions in the top, this setting, the slime water is little by the height difference of dust collecting box 2 to interior bottom end wall 4D, can reduce the raise dust in the transfer collecting box 4. Be the inclined plane setting through interior bottom end wall 4D for the slime water that drops in interior bottom end wall 4D automatically flows to bottom export 4E under the action of gravity.
A first connecting pipe 5 is arranged between the transfer collection box 4 and the dust collection box 2, one end of the first connecting pipe 5 is connected to a first outlet 2D of the dust collection box 2, and the other end of the first connecting pipe 5 is connected to a top inlet 4F of the transfer collection box 4 in an inclined downward mode;
a second connecting pipe 6 is arranged between the transfer collecting box 4 and the flotation tank 7, one end of the second connecting pipe 6 is connected to the bottom outlet 4E of the transfer collecting box 4, and the other end of the second connecting pipe inclines downwards to extend to the flotation tank 7.
In order to avoid splashing and the like when slime water enters the flotation tank 7 as much as possible, the inclination of the connecting pipe II 6 is smaller than that of the connecting pipe I5. According to the arrangement, the gradient is steeper before the transfer collection box 4, so that the conveying speed of slime water is improved; before the transfer collection box 4, the slope slows down to reduce the velocity of flow that the slime water got into flotation tank 7, in order to alleviate the raise dust.
Optimally, the slope of the inner bottom wall 2B of the dust collection box 2 is smaller than the inclined slope of the first connecting pipe 5, and the inclined slope is larger than or equal to 45 degrees, so that the arrangement is more favorable for the coal slime water to flow into the first connecting pipe 5. The gradient of the inner bottom end wall 4D of the transfer collection box 4 is greater than or equal to the inclined gradient of the second connecting pipe 6 and is less than or equal to 45 degrees, and the conveying speed of the slime water can be effectively relieved.
Claims (8)
1. Heavy-medium coal dust treatment device, including flotation cell (7) and dust remover, its characterized in that: the dust remover comprises a dust removing fan (1) and a dust collecting box (2);
the dust collection box (2) is a hollow box body with an open top, a hollow inner cavity (2C) comprises an inner side wall (2A) and an inner bottom wall (2B), and the inner bottom wall (2B) is an inclined plane; a first outlet (2D) which penetrates through the dust collecting box (2) from the hollow inner cavity (2C) to the outside is arranged at the intersection of the inner side wall (2A) and the bottom end of the inner bottom wall (2B); a water spraying channel (2E) communicated with the hollow inner cavity (2C) of the dust collection box (2) is arranged on the side wall of the dust collection box (2);
the dust collection box (2) is arranged below the dust removal fan (1) along the vertical direction, and the top opening of the dust collection box (2) is hermetically connected with a dust outlet (1A) of the dust removal fan (1); a closed connecting channel is arranged between the flotation tank (7) and the dust collecting box (2), one end of the connecting channel is connected with the first outlet (2D), and the other end of the connecting channel extends downwards in an inclined mode and is connected with the flotation tank (7).
2. The heavy-medium coal separation dust treatment device of claim 1, which is characterized in that: the water spraying channel (2E) is aligned with the top end of the inner bottom wall (2B).
3. The heavy-medium coal separation dust treatment device as claimed in claim 1 or 2, wherein: the top opening of the dust collecting box (2) is hermetically connected with a dust outlet (1A) of the dust removing fan (1) through a cloth cover (3).
4. The heavy-medium coal separation dust treatment device as claimed in claim 1 or 2, wherein: the connecting channel comprises a transfer collection box (4); the transfer collection box (4) is positioned between the dust collection box (2) and the flotation tank (7) along the vertical direction; and the transfer collection box (4) is positioned between the dust collection box (2) and the flotation tank (7) along the horizontal direction.
5. The heavy-medium coal separation dust treatment device as claimed in claim 4, wherein: the transfer collection box (4) is a closed hollow box body, a cavity (4A) of the transfer collection box comprises an inner peripheral side wall (4B), an inner top end wall (4C) and an inner bottom end wall (4D), and the inner bottom end wall (4D) is an inclined plane; a bottom outlet (4E) which penetrates through the transfer collection box (4) from the cavity (4A) to the outside is arranged at the intersection of the inner peripheral side wall (4B) and the bottom end of the inner bottom end wall (4D); a top inlet (4F) which penetrates through the transfer collection box (4) from the cavity (4A) to the outside is arranged at the intersection of the inner peripheral side wall (4B) and the inner top end wall (4C); along the horizontal direction, the top inlet (4F) and the bottom outlet (4E) are respectively arranged at the left side and the right side of the transit collection box (4); the top inlet (4F) is hermetically connected with the first outlet (2D) of the dust collection box (2); the bottom outlet (4E) is communicated with the flotation tank (7).
6. The heavy-medium coal separation dust treatment device as claimed in claim 5, wherein: a first connecting pipe (5) is arranged between the transfer collecting box (4) and the dust collecting box (2), one end of the first connecting pipe (5) is connected to a first outlet (2D) of the dust collecting box (2), and the other end of the first connecting pipe is connected to a top inlet (4F) of the transfer collecting box (4) in an inclined downward mode;
a second connecting pipe (6) is arranged between the transfer collecting box (4) and the flotation tank (7), one end of the second connecting pipe (6) is connected to the bottom outlet (4E) of the transfer collecting box (4), and the other end of the second connecting pipe obliquely and downwardly extends to the flotation tank (7).
7. The heavy-medium coal separation dust treatment device of claim 6, which is characterized in that: the inclination of the second connecting pipe (6) is smaller than that of the first connecting pipe (5).
8. The heavy-medium coal separation dust treatment device of claim 7, which is characterized in that: the gradient of the inner bottom wall (2B) of the dust collection box (2) is smaller than the gradient of inclination of the first connecting pipe (5), and the gradient is greater than or equal to 45 degrees; the gradient of the inner bottom end wall (4D) of the transfer collection box (4) is greater than or equal to the gradient of the inclination of the connecting pipe II (6) and is less than or equal to 45 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122201361.0U CN216259778U (en) | 2021-09-10 | 2021-09-10 | Heavy-medium coal dust treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122201361.0U CN216259778U (en) | 2021-09-10 | 2021-09-10 | Heavy-medium coal dust treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216259778U true CN216259778U (en) | 2022-04-12 |
Family
ID=81062673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122201361.0U Active CN216259778U (en) | 2021-09-10 | 2021-09-10 | Heavy-medium coal dust treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216259778U (en) |
-
2021
- 2021-09-10 CN CN202122201361.0U patent/CN216259778U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109779675B (en) | Composite dust removal and purification system for treating ore drawing dust of underground mine drop shaft | |
| WO2020098707A1 (en) | Air dry sand coal sorting system | |
| CN102623772B (en) | Comprehensive re-treatment device for waste lead storage battery | |
| CN216259778U (en) | Heavy-medium coal dust treatment device | |
| CN209076905U (en) | A kind of sorghum cleaning device | |
| CN109321696A (en) | Blast furnace slag treatment device and its treatment of slag | |
| CN116984105A (en) | Multistage ore crusher with dustproof function | |
| CN104906904A (en) | Artificial sandstone aggregate production system and dust suppression and removing method thereof | |
| CN204352698U (en) | A kind of for Crushing Station auto-induction type atomization dust-collecting equipment | |
| CN208304805U (en) | A kind of sandblasting house system convenient for adding sand | |
| CN216094178U (en) | Pollution-free crushing device for cement production | |
| CN206701020U (en) | A kind of ore reduction dust removal device | |
| CN208727656U (en) | A kind of mine stone pulverizer | |
| CN106925409A (en) | A kind of production of aluminum powder device | |
| CN209778910U (en) | Blast furnace slag treatment equipment | |
| CN113291711A (en) | Furfural production raw material conveying and dust removing device and raw material purifying and conveying method | |
| CN206794086U (en) | A kind of novel environment friendly is unloaded coal screening system | |
| CN206827683U (en) | A kind of unloading coal system | |
| CN109432917B (en) | Ore crushing and dust removing device | |
| CN219942940U (en) | Slag discharge and collection system of vertical mill | |
| CN214273706U (en) | Negative pressure balance drop shaft dust removal device | |
| KR101512986B1 (en) | Rovingness wet process impinger of thermal power plant | |
| CN219187268U (en) | Light drift removing device in slag | |
| CN210906487U (en) | Be used for reducing garrulous ore deposit workshop dust concentration and dust recycle device | |
| CN204685257U (en) | A kind of environmental protection complete dry method mechanism sand equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |