CN214234937U - Raw coal screening device - Google Patents
Raw coal screening device Download PDFInfo
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- CN214234937U CN214234937U CN202022489636.0U CN202022489636U CN214234937U CN 214234937 U CN214234937 U CN 214234937U CN 202022489636 U CN202022489636 U CN 202022489636U CN 214234937 U CN214234937 U CN 214234937U
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Abstract
The application provides a raw coal sieving mechanism, including first filter sieve, second filter sieve, vibrating device, deposit the coal bunker. The vibrating device is positioned on the first filter screen and the second filter screen, the first filter screen and the second filter screen are obliquely arranged relative to the ground, and the first filter screen is positioned above the second filter screen. The diameter of the holes on the first filter screen is larger than that of the holes on the second filter screen, and the second filter screen is provided with a weight sensor. A belt conveyor is arranged between the first filter screen and the coal storage bin, a coal slag bin is arranged between the second filter screen and the coal storage bin, and a coal powder bin is arranged below the second filter screen. The application provides a pair of raw coal sieving mechanism is in be equipped with vibrating device on first filter sieve and the second filter sieve be equipped with weighing transducer on the second filter sieve, still reduced the consumption of electric energy when guaranteeing that the hole on the filter screen can continuously realize filtering capability like this, solved in raw coal screening process because the hole on the filter screen is blockked up by the particulate matter and leads to the problem of screening efficiency step-down.
Description
Technical Field
The application relates to raw coal feeding preliminary treatment technical field especially relates to a raw coal sieving mechanism.
Background
The raw coal is coal which is mined from the underground and does not undergo any processing, is mainly used for the aspects of combustion, coking, gasification, low-temperature dry distillation, hydrogenation liquefaction and the like, and is an important raw material in the metallurgical and chemical industries. The raw coal mined from underground is different in size, is doped with raw coal powder, and is low in utilization rate if directly combusted.
At present, before raw coal is applied, screening equipment is often adopted for screening, the raw coal is divided into big materials and small materials and applied to different fields, and the utilization rate of the raw coal is improved.
But current screen equipment is when carrying out the screening, and the hole on the filter screen can be blockked up by the particulate matter for screening efficiency step-down.
SUMMERY OF THE UTILITY MODEL
The application provides a raw coal sieving mechanism to solve because the hole of filter screen is blockked up by the particulate matter and leads to the problem of screening efficiency step-down in the raw coal screening process.
The application provides a raw coal sieving mechanism, includes:
the device comprises a first filter screen and a second filter screen, wherein the hole diameter of the first filter screen is larger than that of the second filter screen, and a weight sensor is arranged on the second filter screen;
the vibration device comprises a first vibration device and a second vibration device, and the second vibration device is electrically connected with the weight sensor;
the coal storage bin is provided with a bin inlet and a bin door;
the fixing frame comprises a first fixing frame and a second fixing frame;
wherein the first screen is positioned above the second screen, the first screen and the second screen are obliquely arranged relative to the ground, and the first screen and the second screen are parallel to each other; the first filter screen is connected with the first fixing frame through the first vibrating device, and the second filter screen is connected with the first fixing frame through the second vibrating device; a belt conveyor is arranged between the first filter screen and the coal storage bin, one end of the belt conveyor is arranged below the first filter screen, the other end of the belt conveyor is arranged in the bin inlet, and a hanging bracket is arranged on the belt conveyor; a pulverized coal bin is arranged below the second filter screen; and a cinder bin is arranged between the second filter screen and the coal storage bin, and the second fixing frame is connected with the cinder bin.
Optionally, the first vibrating device comprises a first driving motor, a first rotating rod, a first pushing rod and a first fixed block, one end of the first rotating rod is connected with the first driving motor, the other end of the first rotating rod is connected with the first pushing rod, the first fixed block is located at one end, away from the first pushing rod, of the first rotating rod, and the first fixed block is connected with the first filter screen.
Optionally, the second vibration device includes a second driving motor, a second rotating rod, a second pushing rod and a second fixed block, one end of the second rotating rod is connected to the second driving motor, the other end of the second rotating rod is connected to the second pushing rod, and the second fixed block is located at one end of the second pushing rod, which is far away from the second rotating rod; the second fixed block is connected with the second filter screen.
Optionally, the raw coal screening device further comprises a discharge bin, and the discharge bin is connected with the first fixing frame; go out the feed bin and include feed inlet and discharge gate, the discharge gate is located first filter sieve top.
Optionally, the raw coal screening device further comprises a connecting spring, one end of the connecting spring is connected with the second filter screen, and the other end of the connecting spring is connected with the coal cinder bin.
Optionally, the bottom of the cinder bin is of an open bin structure.
According to the technical scheme, the application provides a raw coal sieving mechanism, including first filter sieve, second filter sieve, vibrating device, deposit the coal bunker. The vibrating device is positioned on the first filter screen and the second filter screen, the first filter screen and the second filter screen are obliquely arranged relative to the ground, and the first filter screen is positioned above the second filter screen. The diameter of the holes on the first filter screen is larger than that of the holes on the second filter screen, and the second filter screen is provided with a weight sensor. A belt conveyor is arranged between the first filter screen and the coal storage bin, a coal slag bin is arranged between the second filter screen and the coal storage bin, and a coal powder bin is arranged below the second filter screen. The application provides a pair of raw coal sieving mechanism is in be equipped with vibrating device on first filter sieve and the second filter sieve be equipped with weighing transducer on the second filter sieve, still reduced the consumption of electric energy when guaranteeing that the hole on the filter screen can continuously realize filtering capability like this, solved in raw coal screening process because the hole on the filter screen is blockked up by the particulate matter and leads to the problem of screening efficiency step-down.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of the raw coal screening apparatus;
FIG. 2 is a schematic view of the first screen construction;
FIG. 3 is a schematic view of the second screen construction;
fig. 4 is a schematic structural view of the cinder bin.
Illustration of the drawings:
wherein, 1-a first sieve; 2-a second screen; 3-a vibration device; 31-a first vibrating device; 311-a first drive motor; 312-a first rotating lever; 313-a first pusher arm; 314-first fixed block; 32-a second vibrating device; 321-a second drive motor; 322-second rotating shaft; 323-a second push rod; 324-a second fixed block; 4-coal storage; 45-a bin inlet; 42-outlet of the bin; 5-a fixing frame; 51-a first mount; 52-a second mount; 6-a belt conveyor; 7-a hanger; 8-a pulverized coal bunker; 9-a cinder bin; 10-connecting a spring; 11-a discharge bin; 111-a feed port; 112-discharge hole.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
The raw coal refers to coal which is mined from the underground, only visible gangue is selected, and the coal is not processed. In China, 80% of coal raw materials supplied to users are raw coal, the ash content and the gangue content of the raw coal are high, harmful impurities are more, the utilization rate of the raw coal is low by directly burning the raw coal, and the environment is polluted. Therefore, the raw coal should be treated and then used. The processing of raw coal comprises the steps of crushing, screening, magnetic separation and the like. When raw coal is screened, a filter screen is usually adopted to directly screen the raw coal, the method is low in cost, but the filter screen is easily blocked by raw coal particles, so that the screening efficiency is reduced.
Referring to fig. 1, a schematic structural diagram of a raw coal screening apparatus is shown. As shown in the first drawing, the present application provides a raw coal screening apparatus including a first screen 1 and a second screen 2, wherein the first screen 1 and the second screen 2 are inclined with respect to the ground and are disposed parallel to each other. Referring to fig. 2, the first screen 1 and the second screen 2, as can be seen from fig. 2 and 3, the first screen 1 has a larger pore diameter than the second screen 2. The first screen 1 is provided with a first vibration device 31, and the second screen 2 is provided with a second vibration device 32. The first vibration device 31 will keep vibrating until the power is cut off after being powered on. The second screen 2 is provided with a weight sensor which can set a limit weight and a rated weight by itself, and the weight sensor is electrically connected with the second vibration device 32. When the weight on the second screen 2 reaches a limit weight, the weight sensor will emit an electrical signal to the second vibratory device 32 causing the second vibratory device 32 to start vibrating until the weight sensor detects that the weight on the second screen 2 is below the rated weight, the weight sensor will send an electrical signal to the second vibratory device 32 again causing it to stop vibrating.
The first vibration device 31 includes a first driving motor 311, a first rotating rod 312, a first push rod 313 and a first fixing block 314, one end of the first rotating rod 312 is connected to the first driving motor 311, the other end is connected to the first push rod 313, the first fixing block 314 is located at the end of the first rotating rod 312 far away from the first push rod 313, and the first fixing block 314 is connected to the first screen 1. The first driving motor 311 is a disc structure, and when the first driving motor 311 starts to work, the disc structure will rotate all the time, so as to drive the first rotating rod 312 to do circular motion, and the first pushing rod 313 connected to the first rotating rod 312 continuously pushes and pulls the first screen 1, so that the first screen 1 vibrates.
The second vibration device 32 comprises a second driving motor 321, a second rotating rod 322, a second push rod 323 and a second fixing block 324, one end of the second rotating rod 322 is connected with the first driving motor 311, the other end of the second rotating rod is connected with the first push rod 313, the second fixing block 324 is located far away from the first push rod 313 from one end of the first rotating rod 312, and the second fixing block 324 is connected with the first filter screen 1. The first driving motor 311 is a disc structure, and when the first driving motor 311 starts to work, the disc structure will rotate all the time, so as to drive the first rotating rod 312 to do circular motion, and the first pushing rod 313 connected to the first rotating rod 312 continuously pushes and pulls the first screen 1, so that the first screen 1 vibrates.
The vibration frequencies of the first vibration device 31 and the second vibration device 32 are not limited, and can be adjusted according to actual needs.
First filter sieve 1 top is equipped with out feed bin 11, it includes feed inlet 111 and discharge gate 112 to go out feed bin 11, discharge gate 112 is located first filter sieve 1 top. It should be noted that the shape and size of the discharging bin 11 are not limited, and can be selected according to actual requirements.
The application provides a raw coal sieving mechanism still includes buggy storehouse 8, deposits coal bunker 4, cinder storehouse 9 and connecting spring 10. The pulverized coal bunker 8 is a hollow box structure with an opening at the top. The pulverized coal bunker 8 is located below the second screen 2. The coal storage bin 4 is provided with a bin inlet 41 and a bin door 42, the coal storage bin 4 is provided with a belt conveyor 6 between the first filter screens 1, one end of the belt conveyor 6 is arranged below the first filter screens 1, and the other end of the belt conveyor is arranged in the bin inlet 41. The top of the cinder bin 9 is provided with an opening, and the bottom of the cinder bin is provided with an opening structure. One end of the connecting spring 10 is connected with the second filter screen 2, and the other end is connected with the cinder bin 9.
In actual operation, coal which does not pass through the aperture of the first screen 1 slides up from the first screen 1 to the belt conveyor 6, and the belt conveyor 6 conveys the screened coal to the coal storage bin 4 through the bin inlet 41. When the coal needs to be taken out, the bin door 42 of the coal storage bin 4 can be opened to take the coal. The coal passing through the aperture of the first screen 1 reaches the second screen 2, and the coal passing through the aperture of the second screen 2 falls into the pulverized coal bunker 8, and the coal failing to pass through the aperture of the second screen 2 slides along the second screen 2 into the cinder bunker 9.
It should be noted that, in order to ensure the stability of the structure, the raw coal screening device of the present application will the first vibration device 31, the second vibration device 32 and the discharge bin 11 are connected to the first fixing frame 51, the second fixing frame 52 is arranged below the cinder bin 9, the belt conveyer 6 is provided with the hanging bracket 7, and the first fixing frame 51, the second fixing frame 52 and the hanging bracket 7 can be connected to an external device. The shapes and sizes of the first fixing frame 51, the second fixing frame 52 and the hanging frame 7 are not limited, as long as the stable structure of the raw coal screening device can be satisfied.
According to the technical scheme, the application provides a raw coal sieving mechanism, including first filter sieve 1, second filter sieve 2, vibrating device 3, deposit coal bunker 4. Wherein the vibrating device 3 is positioned on the first screen 1 and the second screen 2, the first screen 1 and the second screen 2 are obliquely placed relative to the ground, and the first screen 1 is positioned above the second screen 2. The hole diameter on the first screen 1 is larger than the hole diameter on the second screen 2, and the second screen 2 is provided with a weight sensor. A belt conveyor 6 is arranged between the first filter screen 1 and the coal storage bin 4, a coal cinder bin 9 is arranged between the second filter screen 2 and the coal storage bin 4, and a coal dust bin 8 is arranged below the second filter screen 2.
The application provides a pair of raw coal sieving mechanism is in be equipped with vibrating device 3 on first filter sieve 1 and the second filter sieve 2 be equipped with weighing transducer on the second filter sieve 2, the raw coal is when arriving first filter sieve 1, because first filter sieve 1 vibrates always for the difficult jam of raw coal granule is in 1 aperture of first filter sieve, and can accelerate the raw coal of tiny particle through first filter sieve 1. When the small-particle raw coal reaches the second screen 2, a second layer of screening is performed, initially, the second screen 2 does not vibrate, and as the amount of the raw coal on the second screen 2 is accumulated, when the weight sensor on the second screen 2 detects that the weight of the raw coal on the second screen 2 reaches the limit weight, an electric signal is transmitted to the second vibrating device 32, the second vibrating device 32 starts to start, so that the second screen 2 starts to vibrate, the filtering efficiency on the second screen 2 is improved, until the weight sensor detects that the weight on the second screen 2 is lower than the rated weight, the weight sensor transmits the electric signal to the second vibrating device 32 again, and the second vibrating device 32 stops vibrating. The application provides a pair of raw coal sieving mechanism still reduces the consumption of electric energy when guaranteeing that the hole on the filter screen can continuously realize filtering capability, has solved in raw coal screening process because the hole on the filter screen is blockked up by the particulate matter and leads to the problem of screening efficiency step-down.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (6)
1. A raw coal screening device, characterized by comprising:
the device comprises a first filter screen (1) and a second filter screen (2), wherein the hole diameter of the first filter screen (1) is larger than that of the second filter screen (2), and a weight sensor is arranged on the second filter screen (2);
a vibrating device (3), the vibrating device (3) comprising a first vibrating device (31) and a second vibrating device (32), the second vibrating device (32) being electrically connected to the weight sensor;
the coal storage bin (4) is provided with a bin inlet (41) and a bin door (45);
a fixing frame (5), wherein the fixing frame (5) comprises a first fixing frame (51) and a second fixing frame (52);
wherein the first screen (1) is located above the second screen (2), the first screen (1) and the second screen (2) are placed obliquely relative to the ground, and the first screen (1) and the second screen (2) are parallel to each other; the first filter screen (1) is connected with the first fixing frame (51) through the first vibrating device (31), and the second filter screen (2) is connected with the first fixing frame (51) through the second vibrating device (32); a belt conveyor (6) is arranged between the first filter screen (1) and the coal storage bin, one end of the belt conveyor (6) is arranged below the first filter screen (1), the other end of the belt conveyor is arranged in the bin inlet (41), and a hanging bracket (7) is arranged on the belt conveyor (6); a pulverized coal bin (8) is arranged below the second filter screen (2); and a cinder bin (9) is arranged between the second filter screen (2) and the coal storage bin (4), and the second fixing frame (52) is connected with the cinder bin (9).
2. The raw coal screening device according to claim 1, wherein the first vibration device (31) comprises a first driving motor (311), a first rotating rod (312), a first pushing rod (313) and a first fixing block (314), one end of the first rotating rod (312) is connected with the first driving motor (311), the other end of the first rotating rod is connected with the first pushing rod (313), the first fixing block (314) is located at one end, far away from the first rotating rod (312), of the first pushing rod (313), and the first fixing block (314) is connected with the first screen (1).
3. The raw coal screening device according to claim 1, wherein the second vibration device (32) comprises a second driving motor (321), a second rotating rod (322), a second pushing rod (323) and a second fixing block (324), one end of the second rotating rod (322) is connected with the second driving motor (321), the other end of the second rotating rod is connected with the second pushing rod (323), and the second fixing block (324) is located at one end, far away from the second rotating rod (322), of the second pushing rod (323); the second fixed block (324) is connected with the second filter screen (2).
4. The raw coal screening device according to claim 1, further comprising a discharge bin (11), wherein the discharge bin (11) is connected with the first fixing frame (51); go out feed bin (11) including feed inlet (111) and discharge gate (112), discharge gate (112) are located first filter sieve (1) top.
5. The raw coal screening device according to claim 1, further comprising a connecting spring (10), wherein one end of the connecting spring (10) is connected with the second screen (2), and the other end is connected with the cinder bin (9).
6. The raw coal screening device according to claim 5, wherein the bottom of the cinder bin (9) is of an open bin structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022489636.0U CN214234937U (en) | 2020-11-02 | 2020-11-02 | Raw coal screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022489636.0U CN214234937U (en) | 2020-11-02 | 2020-11-02 | Raw coal screening device |
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| Publication Number | Publication Date |
|---|---|
| CN214234937U true CN214234937U (en) | 2021-09-21 |
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| CN202022489636.0U Active CN214234937U (en) | 2020-11-02 | 2020-11-02 | Raw coal screening device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338014A (en) * | 2022-08-09 | 2022-11-15 | 江苏吉能达环境能源科技有限公司 | Sorting unit is used in processing of compound miropowder granule of slay |
-
2020
- 2020-11-02 CN CN202022489636.0U patent/CN214234937U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115338014A (en) * | 2022-08-09 | 2022-11-15 | 江苏吉能达环境能源科技有限公司 | Sorting unit is used in processing of compound miropowder granule of slay |
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