Coal screening device

Abstract

The utility model discloses a coal screening device, which belongs to the technical field of coal screening, and comprises a coal screening machine body, a screening component and a belt component; the coal screening machine body comprises a bracket, a machine body, a coal screening cylinder, a feeding port, a discharging port and a discharging pipe; the machine body is fixedly arranged on the bracket; the coal screening cylinder is fixedly arranged in the machine body; the feeding port is connected with the machine body through the screening component; the discharging port is fixedly arranged on the machine body; the discharging pipe is fixedly arranged on the machine body; wherein the screening component comprises a coal feeding cylinder, a transmission shaft, a driving motor, a spiral block and a screening element; the coal feeding cylinder is fixedly arranged on a side of the machine body away from the discharging pipe, and the feeding port is communicated with the coal feeding cylinder; the transmission shaft is penetrated through the coal feeding cylinder and the machine body; the driving motor is connected with the transmission shaft through the belt component; the spiral block is sleeved on the transmission shaft, and the spiral block is rotatably matched with the coal feeding cylinder; the screening element is sleeved on the transmission shaft, and the screening element is rotatably matched with the machine body. The coal screening device has a simple structure, is easy to collect and has a high screening efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal screening, in particular to a coal screening device. Background Art

[0002] Coal is a solid combustible mineral that is gradually formed when ancient plants are buried underground and undergo complex biochemical and physicochemical changes. Coal is hailed as black gold and food for industry.

[0003] Before the coal washing and selection operation, it is necessary to screen the coal of different sizes through a screening device. However, in the prior art, most screening devices realize the coal screening by setting a plurality of screening nets with screening holes of different diameters. The screened coal needs to be collected after the screening device is shut down, which reduces the coal screening efficiency and thus affects the use effect of the screening device. For example, a screening device for coal washing provided by a Chinese utility model patent with publication number CN217830691U includes a screening barrel, an inlet is provided at the upper end of the screening barrel, and a top layer is provided at the inner end of the screening barrel from top to bottom. The filter plate, the middle filter plate, the bottom drop plate, the top filter plate and the middle filter plate are all provided with holes of different diameters on their upper ends, and a coal size screening device which occupies a small area and is easy to transfer is provided, in which three screening plates are arranged from top to bottom, and the coal raw materials are put into the screening barrel from the input port, and the coal raw materials fall in sequence and first pass through the top filter plate, and the larger coal is blocked on the top filter plate, and the medium-sized coal falls onto the middle filter plate again, and the medium-sized coal is blocked on the middle filter plate, and the small coal passes through the middle filter plate and falls onto the bottom drop plate, completing the overall screening operation, which is beneficial to ensuring the processing efficiency of the coal processing operation.

[0004] Although the above-mentioned screening device can screen coal of different sizes, the above-mentioned screening device realizes coal screening by setting a screening net with multiple screening holes of different diameters, and the screened coal needs to be collected after the screening device is shut down, which reduces the screening efficiency of the coal and thus affects the use effect of the screening device. Utility Model Content

[0005] The utility model aims to provide a coal screening device to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal screening device, comprising a coal screening machine body, a screening assembly and a belt assembly; the coal screening machine body comprises a bracket, a machine body, a coal screening cylinder, a feed port, a discharge port and a discharge pipe; the machine body is fixed on the bracket; the coal screening cylinder is fixed in the machine body; the feed port is connected to the machine body through the screening assembly; the discharge port is fixed on the machine body; the discharge pipe is fixed on the machine body; wherein the screening assembly comprises a coal feed barrel, a transmission shaft, driving motor, spiral block and screening element; the coal feeding barrel is fixedly arranged on the side of the machine body away from the discharge pipe, and the feeding port is communicated with the coal feeding barrel; the transmission shaft is passed through the coal feeding barrel and the machine body; the driving motor is fixedly arranged on the bracket through a motor seat, and the driving motor is connected to the transmission shaft through a belt assembly; the spiral block is sleeved on the transmission shaft, and the spiral block and the coal feeding barrel are rotatably matched; the screening element is sleeved on the transmission shaft, and the screening element and the machine body are rotatably matched.

[0007] As a preferred embodiment, the belt assembly includes a driving pulley, a driven pulley and a driving belt; the driving pulley is sleeved on the output shaft of the driving motor; the driven pulley is sleeved on the transmission shaft, and the driven pulley is rotationally connected to the driving pulley through the driving belt.

[0008] As a preferred embodiment, it also includes an opening component; the opening component is arranged on the circumferential surface of the body.

[0009] As a preferred embodiment, the opening assembly includes a baffle, a fixing buckle, a base, a rotating plate, a fixing pin, a fixing ring and a torsion spring; the baffle is hingedly engaged with the opening slot of the body through a hinge; at least one fixing buckle is fixed on the baffle; at least one base is fixed on the circumferential surface of the body; the rotating plate is rotatably engaged with the base through a fixing pin; the fixing ring is rotatably mounted on the rotating plate; the torsion spring is sleeved on the fixing pin, and the fixed end of the torsion spring is fixed on the base, and the movable end of the torsion spring is fixed on the fixing ring.

[0010] As a preferred embodiment, the baffle is a curved plate.

[0011] As a preferred embodiment, the fixing ring is snap-fitted with the fixing buckle.

[0012] As a preferred embodiment, the fixing buckle includes a fixing portion and a clamping portion, the fixing portion is fixed on the baffle, and the clamping portion is an arc-shaped structure.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are as follows:

[0014] The coal screening device is provided with a screening component and a belt component. When in use, the driving motor is started to rotate the output shaft of the driving motor, the driving pulley is rotated, the driven pulley is rotated through the driving belt, the transmission shaft is rotated, the spiral block is rotated in the coal feeding barrel, and the screening element is rotated in the machine body. Then, the coal to be screened is put into the coal feeding barrel from the feeding port, and is transported into the coal screening barrel by the spiral block. After being screened by the screening element, the coal smaller than the aperture of the coal screening barrel will pass through the aperture of the coal screening barrel and be discharged from the discharging port, while the coal larger than the aperture of the coal screening barrel will be discharged from the discharging pipe under the action of the screening element until the coal screening is completed. The utility model can collect the screened coal without stopping the machine, thereby greatly improving the coal screening efficiency.

[0015] The coal screening device is provided with a baffle, a fixing buckle, a base, a rotating plate, a fixing pin, a fixing ring and a torsion spring. When cleaning the coal adhered to the aperture of the coal screening cylinder, the rotating plate is rotated to make the rotating plate rotate on the base through the fixing pin, so that the torsion spring is twisted by force until the fixing ring is disengaged from the clamping part. At this time, the baffle is rotated on the machine body through the hinge through the handle on the baffle, and then the coal screening cylinder can be cleaned by knocking with a tool, thereby further improving the coal screening efficiency. The clamping part is arranged into an arc structure to facilitate the position of the baffle fixed on the machine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the partial structure disassembly of the utility model;

[0020] Figure 4 For the utility model Figure 1 Enlarged schematic diagram at point A in the middle.

[0021] Description of reference numerals:

[0022] In the figure:

[0023] 1. Coal screening machine body; 2. Screening assembly; 3. Belt assembly; 4. Opening assembly;

[0024] 101, bracket; 102, machine body; 103, coal screening cylinder; 104, feed inlet; 105, discharge outlet; 106, discharge pipe;

[0025] 201, coal feeding barrel; 202, transmission shaft; 203, driving motor; 204, spiral block; 205, screening element;

[0026] 301, driving pulley; 302, driven pulley; 303, driving belt;

[0027] 401, baffle; 402, fixing buckle; 403, base; 404, rotating plate; 405, fixing pin; 406, fixing ring; 407, torsion spring;

[0028] 4021, fixing portion; 4022, clamping portion. DETAILED DESCRIPTION

[0029] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0030] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside in the figures shown in the present utility model, and are explained here together.

[0031] The connection method can be bonding, welding, bolt connection, etc., depending on actual needs.

[0032] See also Figures 1 to 4 As shown, this embodiment includes a coal screening machine body 1, a screening assembly 2 and a belt assembly 3; the coal screening machine body 1 includes a bracket 101, a body 102, a coal screening cylinder 103, an inlet 104, a discharge port 105 and a discharge pipe 106; the body 102 is fixed on the bracket 101; the coal screening cylinder 103 is fixed in the body 102; the inlet 104 is connected to the body 102 through the screening assembly 2; the discharge port 105 is fixed on the body 102; the discharge pipe 106 is fixed on the body 102;

[0033] Among them, the screening component 2 includes a coal feeding barrel 201, a transmission shaft 202, a driving motor 203, a spiral block 204 and a screening element 205; the coal feeding barrel 201 is fixedly arranged on the side of the body 102 away from the discharge pipe 106, and the feeding port 104 is connected with the coal feeding barrel 201; the transmission shaft 202 is passed through the coal feeding barrel 201 and the body 102; the driving motor 203 is fixedly arranged on the bracket 101 through the motor seat, and the driving motor 203 is connected with the transmission shaft 202 through the belt assembly 3; the spiral block 204 is sleeved on the transmission shaft 202, and the spiral block 204 is rotatably matched with the coal feeding barrel 201; the screening element 205 is sleeved on the transmission shaft 202, and the screening element 205 is rotatably matched with the body 102;

[0034] Among them, the belt assembly 3 includes a driving pulley 301, a driven pulley 302 and a driving belt 303; the driving pulley 301 is sleeved on the output shaft of the driving motor 203; the driven pulley 302 is sleeved on the transmission shaft 202, and the driven pulley 302 is rotationally connected to the driving pulley 301 through the driving belt 303.

[0035] The utility model is provided with a screening component 2 and a belt component 3. When in use, the driving motor 203 is started, the output shaft of the driving motor 203 is rotated, the driving pulley 301 is rotated, the driven pulley 302 is rotated through the driving belt 303, the transmission shaft 202 is rotated, the spiral block 204 is rotated in the coal feeding barrel 201, the screening element 205 is rotated in the machine body 102, and then, the coal to be screened is put into the coal feeding barrel from the feeding port 104. In the barrel 201, the coal is transported into the coal screening barrel 103 by the spiral block 204. After being screened by the screening element 205, the coal smaller than the aperture of the coal screening barrel 103 will pass through the aperture of the coal screening barrel 103 and be discharged from the discharge port 105, while the coal larger than the aperture of the coal screening barrel 103 will be discharged from the discharge pipe 106 under the action of the screening element 205 until the coal screening is completed. The utility model can collect the screened coal without stopping the machine, which greatly improves the coal screening efficiency.

[0036] As a preferred embodiment, it also includes an opening component 4; the opening component 4 is arranged on the circumferential surface of the body 102; wherein the opening component 4 includes a baffle 401, a fixing buckle 402, a base 403, a rotating plate 404, a fixing pin 405, a fixing ring 406 and a torsion spring 407; the baffle 401 is hinged with the opening groove of the body 102 through a hinge; wherein the baffle 401 is an arc-shaped plate; two fixing buckles 402 are symmetrically fixed on the baffle 401; two bases 403 are symmetrically fixed on the circumferential surface of the body 102; the rotating plate 4 04 is rotatably matched with the base 403 through the fixing pin 405; the fixing ring 406 is rotatably arranged on the rotating plate 404; the torsion spring 407 is sleeved on the fixing pin 405, and the fixed end of the torsion spring 407 is fixed on the base 403, and the movable end of the torsion spring 407 is fixed on the fixing ring 406; wherein, the fixing ring 406 is snap-fitted with the fixing buckle 402; wherein, the fixing buckle 402 includes a fixing portion 4021 and a snap-fitting portion 4022, the fixing portion 4021 is fixed on the baffle 401, and the snap-fitting portion 4022 is an arc-shaped structure.

[0037] The utility model provides a baffle plate 401, a fixing buckle 402, a base 403, a rotating plate 404, a fixing pin 405, a fixing ring 406 and a torsion spring 407. When cleaning the coal adhered to the aperture of the coal screening drum 103, the rotating plate 404 is rotated to make the rotating plate 404 rotate on the base 403 through the fixing pin 405, so that the torsion spring 407 is twisted by force until the fixing ring 406 is disengaged from the clamping part 4022. At this time, the baffle plate 401 is rotated on the machine body 102 through the hinge through the handle on the baffle plate 401. Then, the coal screening drum 103 can be cleaned by knocking it with a tool, thereby further improving the screening efficiency of the coal. The clamping part 4022 is arranged to be an arc structure to facilitate the position of the baffle plate 401 fixed on the machine body 102.

[0038] The driving motor 203 is a conventional instrument, and its working principle, size and model are irrelevant to the problem solved by the present application, so no further description will be given. The control method of the present invention is controlled by a controller, and the control circuit of the controller can be realized by simple programming by technicians in this field. The provision of power is also common knowledge in this field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0039] How it works

[0040] When the coal screening device is in use, the driving motor 203 is started to rotate the output shaft of the driving motor 203, the driving pulley 301 is rotated, the driven pulley 302 is rotated through the driving belt 303, the transmission shaft 202 is rotated, the spiral block 204 is rotated in the coal feeding barrel 201, and the screening element 205 is rotated in the machine body 102. Then, the coal to be screened is put into the coal feeding barrel 201 from the feeding port 104, and is transported into the coal screening barrel 103 by the spiral block 204. After being screened by the screening element 205, the coal smaller than the aperture of the coal screening barrel 103 will pass through the aperture of the coal screening barrel 103 and be discharged from the discharge port 105, while the coal larger than the aperture of the coal screening barrel 103 will be discharged from the discharge pipe 106 under the action of the screening element 205 until the coal screening is completed.

[0041] When it is necessary to clean the coal adhering to the aperture of the coal screening drum 103, rotate the rotating plate 404 so that the rotating plate 404 rotates on the base 403 through the fixing pin 405, so that the torsion spring 407 is twisted by force until the fixing ring 406 is disengaged from the clamping portion 4022. At this time, the baffle 401 is rotated on the machine body 102 through the hinge through the handle on the baffle 401, and then the coal screening drum 103 is knocked with a tool. After the cleaning is completed, the baffle 401 is rotated in the opposite direction on the machine body 102 to its original position through the hinge, and then the fixing ring 406 is put on the clamping portion 4022, and the rotating plate 404 is rotated in the opposite direction, so that the rotating plate 404 rotates in the opposite direction on the base 403 through the fixing pin 405 until the torsion spring 407 returns to its original shape. At this time, the fixing ring 406 is clamped with the clamping portion 4022.

[0042] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal screening device, characterized in that: include: Coal screening machine body (1); The coal screening machine body (1) comprises a support (101), a machine body (102), a coal screening cylinder (103), a material inlet (104), a material discharge port (105) and a material discharge pipe (106); the machine body (102) is fixedly mounted on the support (101); the coal screening cylinder (103) is fixedly mounted in the machine body (102); the material inlet (104) is connected to the machine body (102) via a screening assembly (2); the material discharge port (105) is fixedly mounted on the machine body (102); and the material discharge pipe (106) is fixedly mounted on the machine body (102); The screening component (2) comprises a coal feeding barrel (201), a transmission shaft (202), a driving motor (203), a spiral block (204) and a screening element (205); the coal feeding barrel (201) is fixedly arranged on a side of the machine body (102) away from the discharge pipe (106), and the feeding port (104) is connected to the coal feeding barrel (201); the transmission shaft (202) is passed through the coal feeding barrel (201) and the machine body (102); The driving motor (203) is fixed on the bracket (101) via a motor seat, and the driving motor (203) is connected to the transmission shaft (202) via a belt assembly (3); the spiral block (204) is sleeved on the transmission shaft (202), and the spiral block (204) is rotationally matched with the coal feeding barrel (201); the screening element (205) is sleeved on the transmission shaft (202), and the screening element (205) is rotationally matched with the machine body (102).

2. A coal screening device according to claim 1, characterized in that: The belt assembly (3) comprises: A driving pulley (301) is sleeved on the output shaft of the driving motor (203); The driven pulley (302) is sleeved on the transmission shaft (202), and the driven pulley (302) is rotationally connected to the driving pulley (301) via a driving belt (303).

3. A coal screening device according to claim 1, characterized in that: Also includes: An opening assembly (4) is arranged on the circumferential surface of the machine body (102).

4. A coal screening device according to claim 3, characterized in that: The opening component (4) comprises: The baffle (401) is hingedly engaged with the opening slot of the body (102) via a hinge; At least one fixing buckle (402) fixedly mounted on the baffle (401); At least one base (403) is fixedly mounted on the circumferential surface of the machine body (102); A rotating plate (404) is rotatably matched with the base (403) via a fixing pin (405); A fixed ring (406) rotatably mounted on the rotating plate (404); The torsion spring (407) is sleeved on the fixing pin (405), and the fixing end of the torsion spring (407) is fixed on the base (403), and the movable end of the torsion spring (407) is fixed on the fixing ring (406).

5. A coal screening device according to claim 4, characterized in that: The baffle (401) is a curved plate.

6. A coal screening device according to claim 4, characterized in that: The fixing ring (406) is snap-fitted with the fixing buckle (402).

7. A coal screening device according to claim 6, characterized in that: The fixing buckle (402) comprises a fixing portion (4021) and a clamping portion (4022); the fixing portion (4021) is fixed on the baffle (401); and the clamping portion (4022) is in an arc-shaped structure.

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