CN211412752U - Coal mine screening equipment - Google Patents
Coal mine screening equipment Download PDFInfo
- Publication number
- CN211412752U CN211412752U CN201921903293.9U CN201921903293U CN211412752U CN 211412752 U CN211412752 U CN 211412752U CN 201921903293 U CN201921903293 U CN 201921903293U CN 211412752 U CN211412752 U CN 211412752U
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- Prior art keywords
- coal
- chute
- screening mechanism
- particle
- middlings
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Abstract
The utility model discloses a colliery screening installation relates to colliery collection equipment technical field. The utility model discloses an original coal bunker, one side of original coal bunker is provided with first band conveyer, one side of first band conveyer is provided with the support, the upper portion welded connection of support has the first coal hopper that connects, the first lower part that connects the coal hopper is provided with fine coal screening mechanism, fine coal screening mechanism's lower part is provided with waste rock screening mechanism, one side of support is provided with second band conveyer, one side of second band conveyer is provided with fine coal collecting box, fine coal screening mechanism includes the colliery granule breaker, the air-blower, fine coal chute, large granule coal chute, broken coal chute, mounting bracket and mounting panel. The utility model discloses a series of structural transformation make the device can carry out breakage and select fine coal to the raw coal in succession, improved coal dressing efficiency, and the device can sort the gangue again, select the middlings, improved the coal dressing precision.
Description
Technical Field
The utility model relates to a colliery collection equipment technical field, more specifically say, relate to a colliery screening installation.
Background
The process of selecting out the clean coal that accords with user's requirement for quality from the raw coal often needs to use colliery screening installation during the coal dressing, and current colliery screening installation can not carry out breakage and select fine coal to the raw coal in succession, and the coal dressing is inefficient, and the device can not carry out letter sorting again to the coal gangue, selects the middlings automatically, and the coal dressing precision is lower, the utility model discloses a new solution is proposed to above problem.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a colliery screening installation to solve the technical problem who mentions in the background art.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
A coal mine screening device comprises a raw coal box, wherein a first belt conveyor is arranged on one side of the raw coal box, a support is arranged on one side of the first belt conveyor, a first coal receiving hopper is welded to the upper portion of the support, a pulverized coal screening mechanism is arranged on the lower portion of the first coal receiving hopper, a gangue screening mechanism is arranged on the lower portion of the pulverized coal screening mechanism, a second belt conveyor is arranged on one side of the support, and a pulverized coal collecting box is arranged on one side of the second belt conveyor;
the pulverized coal screening mechanism comprises a coal mine crusher, an air blower, a pulverized coal chute, a large-particle coal chute, a broken particle coal chute, a mounting frame and a mounting plate, wherein the mounting plate is fixedly welded and fixed in the middle of the support;
waste rock screening mechanism includes that guard plate, second connect coal scuttle, motor, waste rock chute, middlings discharge pipe, middlings coal mesh sieve and screw conveyer, the last welded surface of guard plate is fixed with the second and connects the coal scuttle, the one end fixed mounting of guard plate has the motor, the other end welded connection of guard plate has the waste rock chute, the lower part welded connection of guard plate has the middlings discharge pipe, the last fixed surface of middlings discharge pipe installs middlings coal mesh sieve, motor output fixed mounting has screw conveyer.
Preferably, the pulverized coal chute and the large-particle coal chute penetrate through the mounting plate.
In any of the above embodiments, it is preferred that the upper port of the large particle coal chute is in the same vertical plane as the lower port of the broken particle coal chute.
In any of the above solutions, it is preferable that the port on the blower side is on the same horizontal plane as the upper port of the pulverized coal chute.
In any of the above schemes, preferably, a plurality of through holes are uniformly distributed on the surface of the medium lump coal mesh screen, and the diameter of each through hole is 50 MM.
In any one of the above aspects, preferably, a reinforcing bar is welded and fixed to an inner side of an upper portion of the shield plate.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) the utility model discloses a first band conveyer carries the inside that connects the coal scuttle with the raw coal of raw coal incasement portion, the raw coal enters into the inside of colliery breaker through the first port that connects the coal scuttle lower part, smash the raw coal to the granule of a certain size through the colliery breaker, because the upper portion port of big granule coal chute with the lower part port of broken granule coal chute is on same vertical plane, the colliery can get into the large granule coal chute through broken granule coal chute under the effect of dead weight, because the port of air-blower one side is on same horizontal plane with the upper portion port of fine coal chute, blow through the air-blower the coal grain of the air outlet of air-blower and the port of fine coal chute, for the coal grain that the granularity is less than six millimeters, get into the inside of fine coal chute under the effect of air-blower, carry the inside of collecting box with the fine coal that the granularity is less than six millimeters through the second, the coal separation device is used for collecting and storing, so that the device can continuously crush raw coal and screen out pulverized coal, and the coal separation efficiency is improved;
(2) the utility model discloses a granularity that big granule coal chute got into waste rock screening mechanism is greater than the coal cinder and the waste rock of six millimeters, it rotates to drive screw conveyer through the motor, make the inside coal gangue of entering guard plate move to the one end of keeping away from the motor, at the in-process of screw conveyer transport coal gangue, the coal cinder of small granule moves the bottom of fine coal screening mechanism, because middlings coal mesh sieve is middlings coal granule level filter sieve, the middlings coal granule that moves to middlings coal mesh sieve filters the inside of middlings discharge pipe, collect the middlings through the middlings discharge pipe, the waste rock passes through the waste rock chute and discharges, make the device can sort again the coal gangue, select the middlings, the coal dressing precision has been improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the pulverized coal screening mechanism of the present invention;
FIG. 3 is a partial cross-sectional view of the gangue screening mechanism of the present invention;
fig. 4 is an isometric view of the gangue screening mechanism of the present invention.
The reference numbers in the figures illustrate:
1-raw coal box, 2-first belt conveyor, 3-support, 4-first coal receiving hopper, 5-pulverized coal screening mechanism, 6-gangue screening mechanism, 7-second belt conveyor, 8-pulverized coal collecting box, 9-coal crusher, 10-air blower, 11-pulverized coal chute, 12-large particle coal chute, 13-broken particle coal chute, 14-mounting rack, 15-protection plate, 16-second coal receiving hopper, 17-motor, 18-gangue chute, 19-middlings discharging pipe, 20-middlings screen, 21-spiral conveyor, and 22-mounting plate.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are used in a broad sense, and for example, "connected," may be fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or connected between two elements.
The specific embodiment is as follows:
referring to fig. 1-4, a coal mine screening device comprises a raw coal box 1, wherein a first belt conveyor 2 is arranged on one side of the raw coal box 1, a support 3 is arranged on one side of the first belt conveyor 2, a first coal receiving hopper 4 is welded and connected to the upper portion of the support 3, a pulverized coal screening mechanism 5 is arranged on the lower portion of the first coal receiving hopper 4, a gangue screening mechanism 6 is arranged on the lower portion of the pulverized coal screening mechanism 5, a second belt conveyor 7 is arranged on one side of the support 3, and a pulverized coal collecting box 8 is arranged on one side of the second belt conveyor 7;
the pulverized coal screening mechanism 5 comprises a coal mine crusher 9, an air blower 10, a pulverized coal chute 11, a large-particle coal chute 12, a broken particle coal chute 13, a mounting frame 14 and a mounting plate 22, the mounting plate 22 is fixedly welded and fixed in the middle of the support 3, the air blower 10 is fixedly mounted at one end of the upper surface of the mounting plate 22, the pulverized coal chute 11 is fixedly welded at the other end of the upper surface of the mounting plate 22, the large-particle coal chute 12 is fixedly welded in the middle of the upper surface of the mounting plate 22, the mounting frame 14 is fixedly welded at two sides of the large-particle coal chute 12, the broken particle coal chute 13 is fixedly welded at one side of the mounting frame 14, and the;
waste rock screening mechanism 6 includes guard plate 15, the second connects coal scuttle 16, motor 17, the waste rock chute 18, middlings discharge pipe 19, middlings mesh sieve 20 and screw conveyer 21, the last fixed surface of guard plate 15 has the second to connect coal scuttle 16, the one end fixed mounting of guard plate 15 has motor 17, the other end welded connection of guard plate 15 has waste rock chute 18, the lower part welded connection of guard plate 15 has middlings discharge pipe 19, the last fixed surface of middlings discharge pipe 19 installs middlings mesh sieve 20, motor 17 output end fixed mounting has screw conveyer 21.
In this embodiment, can get into waste rock screening mechanism 6 and second belt conveyor 7 through fine coal chute 11 and large granule coal chute 12 for the colliery, fine coal chute 11 and large granule coal chute 12 all run through mounting panel 22.
In the embodiment, in order that the coal mine can enter the large-particle coal chute 12 through the broken-particle coal chute 13 under the action of self weight, the upper port of the large-particle coal chute 12 and the lower port of the broken-particle coal chute 13 are on the same vertical plane.
In the present embodiment, in order for the pulverized coal to enter the pulverized coal chute 11 by the blower 10, the port on the side of the blower 10 is on the same horizontal plane as the upper port of the pulverized coal chute 11.
In this embodiment, in order to screen the medium lump coal particles by the medium lump coal mesh screen 20, a plurality of through holes are uniformly formed on the surface of the medium lump coal mesh screen 20, and the diameter of each through hole is 50 MM.
In the present embodiment, in order to reinforce the use strength of the shell of the fender 15, a reinforcing bar is welded and fixed to the inner side of the upper portion of the fender 15.
The working principle is as follows:
when the coal crushing device is used, firstly, the conditions of each mechanism of the device are checked, after no special condition is confirmed, the device is started, raw coal in a raw coal box 1 is conveyed to the inside of a first coal receiving hopper 4 through a first belt conveyer 2, the raw coal enters into a coal mine crusher 9 through a port at the lower part of the first coal receiving hopper 4, the raw coal is crushed into particles with a certain size through the coal mine crusher 9, because an upper port of a large-particle coal chute 12 and a lower port of a crushed-particle coal chute 13 are on the same vertical plane, a coal mine can enter into the large-particle coal chute 12 through the crushed-particle coal chute 13 under the action of self weight, because a port at one side of an air blower 10 and an upper port of a pulverized coal chute 11 are on the same horizontal plane, coal particles flowing through an air outlet of the air blower 10 and a port of the pulverized coal chute 11 are blown through the air blower 10, and for the coal particles, get into the inside of fine coal chute 11 under the effect of air-blower 10, carry the inside that fine coal that the granularity is less than six millimeters carries fine coal collecting box 8 through second band conveyer 7, collect and store, the coal cinder that the granularity is greater than six millimeters and waste rock pass through large granule coal chute 12 and get into waste rock screening mechanism 6, it rotates to drive screw conveyer 21 through motor 17, make the inside coal gangue of entering guard plate 15 move to the one end of keeping away from motor 17, at the in-process that screw conveyer 21 carried the coal gangue, the coal cinder of small granule moves the bottom of fine coal screening mechanism 5, because middlings coal mesh sieve 20 is middlings particle level filter sieve, the middlings particle that moves to middlings mesh sieve 20 filters the inside of middlings discharge pipe 19, collect the middlings through middlings discharge pipe 19, the waste rock discharges through waste rock chute 18.
The above is only a preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (6)
1. A coal mine screening device comprises a raw coal box (1), and is characterized in that a first belt conveyor (2) is arranged on one side of the raw coal box (1), a support (3) is arranged on one side of the first belt conveyor (2), a first coal receiving hopper (4) is welded and connected to the upper portion of the support (3), a pulverized coal screening mechanism (5) is arranged on the lower portion of the first coal receiving hopper (4), a gangue screening mechanism (6) is arranged on the lower portion of the pulverized coal screening mechanism (5), a second belt conveyor (7) is arranged on one side of the support (3), and a pulverized coal collecting box (8) is arranged on one side of the second belt conveyor (7);
the pulverized coal screening mechanism (5) comprises a coal mine crusher (9), an air blower (10), a pulverized coal chute (11), a large-particle coal chute (12), a broken-particle coal chute (13), a mounting rack (14) and a mounting plate (22), a mounting plate (22) is fixedly welded and fixed in the middle of the bracket (3), one end of the upper surface of the mounting plate (22) is fixedly provided with a blower (10), the other end of the upper surface of the mounting plate (22) is fixedly welded with a pulverized coal chute (11), the middle part of the upper surface of the mounting plate (22) is fixedly welded with a large-particle coal chute (12), mounting frames (14) are welded and fixed on two sides of the large-particle coal chute (12), one side of the mounting rack (14) is fixedly welded with a broken particle coal chute (13), a coal mine crusher (9) is fixedly mounted at the top of the mounting frame (14);
waste rock screening mechanism (6) connect coal scuttle (16), motor (17), waste rock chute (18), middlings discharge pipe (19), middlings mesh sieve (20) and screw conveyer (21) including guard plate (15), second, the last welded surface of guard plate (15) is fixed with the second and connects coal scuttle (16), the one end fixed mounting of guard plate (15) has motor (17), the other end welded connection of guard plate (15) has waste rock chute (18), the lower part welded connection of guard plate (15) has middlings discharge pipe (19), the last fixed surface of middlings discharge pipe (19) installs middlings mesh sieve (20), motor (17) output end fixed mounting has screw conveyer (21).
2. The coal mine screening apparatus of claim 1, wherein: the pulverized coal chute (11) and the large-particle coal chute (12) penetrate through the mounting plate (22).
3. The coal mine screening apparatus of claim 1, wherein: the upper port of the large-particle coal chute (12) and the lower port of the broken-particle coal chute (13) are on the same vertical plane.
4. The coal mine screening apparatus of claim 1, wherein: and a port on one side of the air blower (10) and an upper port of the pulverized coal chute (11) are on the same horizontal plane.
5. The coal mine screening apparatus of claim 1, wherein: a plurality of through holes are uniformly distributed on the surface of the medium lump coal mesh screen (20), and the diameter of each through hole is 50 MM.
6. The coal mine screening apparatus of claim 1, wherein: and a reinforcing rod is welded and fixed on the inner side of the upper part of the protection plate (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921903293.9U CN211412752U (en) | 2019-11-06 | 2019-11-06 | Coal mine screening equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921903293.9U CN211412752U (en) | 2019-11-06 | 2019-11-06 | Coal mine screening equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211412752U true CN211412752U (en) | 2020-09-04 |
Family
ID=72282684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921903293.9U Expired - Fee Related CN211412752U (en) | 2019-11-06 | 2019-11-06 | Coal mine screening equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211412752U (en) |
-
2019
- 2019-11-06 CN CN201921903293.9U patent/CN211412752U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200904 Termination date: 20201106 |