Coal screening device for coal mining
By designing a coal screening device containing crushing rollers and vibration movements, the problem of single function in the prior art is solved, and the crushing and more thorough screening of larger coal particles is achieved, which reduces labor and time costs and improves screening efficiency.
Patent Information
- Application Number
- CN202421122815.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-14
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing coal screening device has a single function and can only be screened, and cannot effectively deal with larger coal particles, resulting in a lot of manpower and time required for cleaning and crushing.
A coal screening device was designed, including feed pipes, screening structures, crushing rollers, gears, pulleys and return springs. Through drainage plates, crushing rollers and vibration movements, the crushing and more thorough coal particles can be achieved. filter.
The subsequent manual cleaning and crushing steps of staff members have been reduced, screening efficiency is improved, time and effort is saved, and the screening effect is enhanced through vibration movement, making coal screening more thorough.
Smart Images
Figure CN222343419U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coal processing, in particular to a coal screening device used in coal mining. Background Art
[0002] Coal is a solid combustible mineral that was gradually formed by ancient plants buried underground and undergoing complex biochemical and physicochemical changes. Coal is hailed as black gold and food for industry. It has been one of the main energy sources used by the human world since the 18th century. Since the 21st century, although the value of coal is not as high as before, it is still one of the indispensable sources of energy for our production and life at present and for a long time in the future. The supply of coal is also related to the stability of the development of my country's industry and even all aspects of society as a whole. The security of coal supply is also the most important link in my country's energy security.
[0003] However, the coal screening device used in existing coal mines can only screen the coal when in use, and its function is too single. It separates the coal by means of a screen, and smaller coal particles can be collected through the screen, while larger coal particles will be blocked by the screen and cannot pass through. However, the larger coal particles screened out not only require the staff to spend a lot of physical strength and time to clean the screened coal, but also require the subsequent crushing and processing of the screened coal. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that the prior art can only screen coal mines and has too single function.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coal screening device used in coal mines, comprising a device body, a feed pipe is fixedly installed at the top center of the device body, a screening structure is movably embedded in the interior of the device body near the top side, a partition is fixedly installed on the inner wall of the device body and at the bottom of the screening structure, a first guide plate is fixedly installed on the left side of the partition, two first rotating rods are movably embedded in the left side of the interior of the device body, a first pulley is fixedly sleeved on the front outer surface of one of the two first rotating rods, a second rotating rod is movably embedded in the interior of the device body and near the bottom of the screening structure, and a motor is fixedly installed on the rear side of the second rotating rod.
[0006] As a preferred embodiment, a second pulley is fixedly sleeved on the front outer surface of the second rotating rod, and a belt body is movable sleeved on the outer surface of the second pulley.
[0007] The technical effect of adopting the above further solution is that the transmission can be transmitted to the second pulley through the second rotating rod.
[0008] As a preferred embodiment, the other end of the belt body is movably sleeved on the outer surface of the first pulley, and the outer surfaces of the two first rotating rods are fixedly sleeved with crushing rollers.
[0009] The technical effect of adopting the above further solution is that the transmission can be transmitted to the first pulley through the belt body.
[0010] As a preferred implementation, gears are fixedly mounted on the rear sides of the two first rotating rods, and a second guide plate is fixedly mounted on the left side of the inner wall of the device body.
[0011] The technical effect of adopting the above further solution is that the gear can be driven to rotate by the first rotating rod.
[0012] As a preferred embodiment, the two gears are meshed with each other, a collecting box is movably embedded inside the device body and at the bottom of the second guide plate, and an inclined screen plate is fixedly embedded inside the screening structure.
[0013] The technical effect of adopting the above further solution is that the coal can be drained through the second guide plate to fall into the interior of the collection box.
[0014] As a preferred embodiment, telescopic columns are fixedly installed around the bottom of the screening structure, and an eccentric wheel is fixedly sleeved on the outer surface of the second rotating rod.
[0015] The technical effect of adopting the above further solution is that when the second rotating rod rotates, it can drive the eccentric wheel to move in a circle.
[0016] As a preferred implementation, reset springs are fixedly mounted around the bottom of the screening structure, and the inner surfaces of the four reset springs are movably sleeved on the outer surface of the telescopic column.
[0017] The technical effect of adopting the above further solution is that when the eccentric wheel rotates to the top, it will push the screening structure upward, and at the same time drive the reset spring and the telescopic column on the connecting column to extend.
[0018] As a preferred implementation, the four return springs and the bottoms of the four telescopic columns are all fixedly mounted with connecting columns, and the four connecting columns are all fixedly mounted on the inner wall of the device body.
[0019] The technical effect of adopting the above further solution is that when the eccentric wheel rotates to the bottom, the reset spring and the telescopic column will contract, thereby pulling the screening structure downward.
[0020] Compared with the prior art, the advantages and positive effects of the utility model are:
[0021] 1. When the utility model is in use, the first guide plate and the crushing roller and other structures enable the device to crush the larger coal after screening, thereby reducing the steps of manual cleaning of the coal by subsequent staff, so as to facilitate subsequent processing or transportation, saving time and labor, and solving the problem that the existing technology can only screen coal mines and has too single function.
[0022] 2. When the utility model is in use, the structure of the telescopic column and the eccentric wheel enables the device to generate vibration by reciprocating lifting motion, which can increase the screening effect and make the coal screening more thorough. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A rear perspective structural diagram of a coal screening device used in coal mining provided by the utility model;
[0024] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a coal screening device used in coal mining provided by the utility model Figure 1 ;
[0025] Figure 3 A schematic diagram of a cross-sectional three-dimensional structure of a coal screening device used in coal mining provided by the utility model Figure 2 ;
[0026] Figure 4 The utility model provides a coal screening device for coal mining. Figure 3 ;
[0027] Figure 5 The utility model provides a partial three-dimensional structural schematic diagram of a coal screening device used in coal mining.
[0028] Legend:
[0029] 1. Device body; 101. Feed pipe; 102. Screening structure; 103. Partition; 104. First guide plate; 105. First rotating rod; 106. First pulley; 107. Second rotating rod; 108. Motor; 109. Second pulley; 110. Belt body; 111. Crushing roller; 112. Gear; 113. Second guide plate; 114. Collecting box; 2. Eccentric wheel; 201. Telescopic column; 202. Oblique screen plate; 203. Reset spring; 204. Connecting column. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] Example 1, please refer to Figure 1-5 The utility model provides a technical solution: a coal screening device used in coal mining, comprising a device body 1, a feed pipe 101 is fixedly installed at the top center of the device body 1, a screening structure 102 is movably embedded in the device body 1 near the top side, a partition 103 is fixedly installed on the inner wall of the device body 1 and located at the bottom of the screening structure 102, a first guide plate 104 is fixedly installed on the left side of the partition 103, two first rotating rods 105 are movably embedded in the left side of the device body 1, a first pulley 106 is fixedly sleeved on the front outer surface of one of the two first rotating rods 105, and a second rotating rod 105 is movably embedded in the device body 1 and near the bottom of the screening structure 102 The second rotating rod 107 is a movable rod, and a motor 108 is fixedly installed on the rear side of the second rotating rod 107. The second rotating rod 107 is fixedly sleeved with a second pulley 109 on the outer surface of the front side. The outer surface of the second pulley 109 is movably sleeved with a belt body 110. The other end of the belt body 110 is movably sleeved on the outer surface of the first pulley 106. The outer surfaces of the two first rotating rods 105 are fixedly sleeved with a crushing roller 111. The rear sides of the two first rotating rods 105 are fixedly installed with a gear 112. A second guide plate 113 is fixedly installed on the left side of the inner wall of the device body 1. The two gears 112 are meshed with each other. A collecting box 114 is movably embedded inside the device body 1 and at the bottom of the second guide plate 113.
[0032] In this embodiment, coal is firstly fed into the device body 1 through the feed pipe 101, so that the coal falls to the top of the screening structure 102 by its own weight, and then screened by the screening structure 102, so that smaller coal passes through the screening structure 102 and falls into the collecting box 114, while larger coal remains in the screening structure 102 and rolls to the left through the angle of the inclined screen plate 202 inside the screening structure 102 to the top of the first guide plate 104 on the partition 103, and is guided by the first guide plate 104 to fall into the top of the crushing roller 111, and then the motor 108 is started through the power supply system of the motor 108, so that when the motor 108 is running, it is transmitted to the second pulley 109 through the second rotating rod 107, so that when the second pulley 109 rotates, it is transmitted to the first pulley 106 through the belt body 110, and then the first pulley 10 6 drives the first rotating rod 105 on the right side to rotate, thereby rotating the gear 112 on the right side, and then the right gear 112 is transmitted to the gear 112 on the left side, so that the first rotating rod 105 on the left side rotates, and then the first rotating rod 105 on both sides rotates in opposite directions through the setting of the gear 112, and then the first rotating rod 105 drives the crushing roller 111 to rotate synchronously, and the coal falling on the top thereof is crushed, so that the crushed coal passes through the crushing roller 111 and falls on the top of the second guide plate 113, and then is drained by the second guide plate 113, so that the coal falls into the inside of the collecting box 114, and through the structures such as the first guide plate 104 and the crushing roller 111, the device can crush the larger coal that has been screened out, thereby reducing the steps of manual cleaning of the coal by subsequent staff, so as to facilitate subsequent processing or transportation, saving time and effort.
[0033] Embodiment 2, as Figure 1-5 As shown, an inclined screen plate 202 is fixedly embedded inside the screening structure 102, telescopic columns 201 are fixedly installed around the bottom of the screening structure 102, an eccentric wheel 2 is fixedly sleeved on the outer surface of the second rotating rod 107, and reset springs 203 are fixedly installed around the bottom of the screening structure 102. The inner surfaces of the four reset springs 203 are movably sleeved on the outer surface of the telescopic column 201. Connecting columns 204 are fixedly installed on the bottoms of the four reset springs 203 and the four telescopic columns 201, and the four connecting columns 204 are fixedly installed on the inner wall of the device body 1.
[0034] In this embodiment, when the coal falls into the screening structure 102, it will be located at the top of the inclined screen plate 202. When the second rotating rod 107 rotates, it will drive the eccentric wheel 2 to move in a circle. When the eccentric wheel 2 rotates to the top, it will push the screening structure 102 upward, and at the same time drive the return spring 203 and the telescopic column 201 on the connecting column 204 to extend, thereby causing the inclined screen plate 202 to rise. When the eccentric wheel 2 rotates to the bottom, the return spring 203 and the telescopic column 201 will be contracted. The screening structure 102 is then pulled downward to lower the inclined screen plate 202, and the reciprocating circular motion of the eccentric wheel 2 drives the inclined screen plate 202 to perform a reciprocating lifting motion, causing it to vibrate, thereby screening the coal, so that smaller coal passes through the inclined screen plate 202, while larger coal remains on the top of the inclined screen plate 202 and rolls to the left. Through the structures such as the telescopic column 201 and the eccentric wheel 2, the device adopts a reciprocating lifting motion to generate vibration, which can increase the screening effect and make the coal screening more thorough.
[0035] Working principle: When in use, firstly, coal is fed into the inside of the device body 1 through the feeding pipe 101, so that the coal falls to the top of the screening structure 102 by its own weight, and then is screened by the screening structure 102, so that the smaller coal passes through the screening structure 102 and falls into the inside of the collecting box 114, while the larger coal will remain in the screening structure 102, and roll to the left through the angle of the inclined screen plate 202 inside it to the top of the first guide plate 104 on the partition 103, and is guided by the first guide plate 104 to make the coal fall into the top of the crushing roller 111, and then the motor 108 is started through the power supply system of the motor 108, so that when the motor 108 is running, it is transmitted to the second pulley 109 through the second rotating rod 107, so that when the second pulley 109 rotates, it is transmitted to the first pulley 106 through the belt body 110, and then the first pulley 106 drives the first rotating rod 105 on the right to rotate, thereby rotating the gear 112 on the right, and then transmitting the transmission to the gear 112 on the left through the right gear 112, so that the first rotating rod 105 on the left rotates, and then through the setting of the gear 112, the first rotating rods 105 on both sides rotate in opposite directions, and then the first rotating rod 105 drives the crushing roller 111 to rotate synchronously, and crushes the coal falling on the top thereof, so that the crushed coal passes through the crushing roller 111 and falls onto the top of the second guide plate 113, and then is drained by the second guide plate 113, so that the coal falls into the interior of the collecting box 114, and through the structures such as the first guide plate 104 and the crushing roller 111, the device can crush the larger coal that has been screened out, thereby reducing the steps of manual cleaning of the coal by subsequent staff for subsequent processing or transportation, saving time and effort. When in use, when coal falls into the screening structure 102, it will be located at the top of the inclined screen plate 202. When the second rotating rod 107 rotates, it will drive the eccentric wheel 2 to move in a circle. When the eccentric wheel 2 rotates to the top, it will push the screening structure 102 upward, and at the same time drive the return spring 203 and the telescopic column 201 on the connecting column 204 to extend, so that the inclined screen plate 202 rises. When the eccentric wheel 2 rotates to the bottom, the return spring 203 and the telescopic column 201 will be contracted, and the eccentric wheel 2 will be moved upward. Pulling the screening structure 102 downward causes the inclined screen plate 202 to descend, and the reciprocating circular motion of the eccentric wheel 2 drives the inclined screen plate 202 to perform a reciprocating lifting motion, causing it to vibrate, thereby screening the coal, so that smaller coal passes through the inclined screen plate 202, while larger coal remains on the top of the oblique screen plate 202 and rolls to the left. Furthermore, through the structures such as the telescopic column 201 and the eccentric wheel 2, the device adopts a reciprocating lifting motion to generate vibration, which can increase the screening effect and make the coal screening more thorough.
[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. A coal screening device for use in coal mining, comprising a device body (1), characterized in that: A feed pipe (101) is fixedly installed at the top center of the device body (1); a screening structure (102) is movably embedded in the interior of the device body (1) near the top side; a partition (103) is fixedly installed on the inner wall of the device body (1) and located at the bottom of the screening structure (102); a first guide plate (104) is fixedly installed on the left side of the partition (103); two first rotating rods (105) are movably embedded in the left side of the interior of the device body (1); a first pulley (106) is fixedly sleeved on the front outer surface of one of the two first rotating rods (105); a second rotating rod (107) is movably embedded in the interior of the device body (1) and near the bottom of the screening structure (102); a motor (108) is fixedly installed on the rear side of the second rotating rod (107).
2. A coal screening device for coal mining according to claim 1, characterized in that: A second belt pulley (109) is fixedly sleeved on the front outer surface of the second rotating rod (107), and a belt body (110) is movable sleeved on the outer surface of the second belt pulley (109).
3. A coal screening device for coal mining according to claim 2, characterized in that: The other end of the belt body (110) is movably sleeved on the outer surface of the first belt pulley (106), and the outer surfaces of the two first rotating rods (105) are both fixedly sleeved with crushing rollers (111).
4. A coal screening device for coal mining according to claim 3, characterized in that: Gears (112) are fixedly mounted on the rear sides of the two first rotating rods (105), and a second guide plate (113) is fixedly mounted on the left side of the inner wall of the device body (1).
5. A coal screening device for coal mining according to claim 4, characterized in that: The two gears (112) are meshed with each other, a collecting box (114) is movably embedded inside the device body (1) and at the bottom of the second guide plate (113), and an inclined screen plate (202) is fixedly embedded inside the screening structure (102).
6. A coal screening device for coal mining according to claim 5, characterized in that: Telescopic columns (201) are fixedly mounted around the bottom of the screening structure (102), and an eccentric wheel (2) is fixedly sleeved on the outer surface of the second rotating rod (107).
7. A coal screening device for coal mining according to claim 6, characterized in that: Restoration springs (203) are fixedly mounted around the bottom of the screening structure (102), and the inner surfaces of the four restoring springs (203) are movably sleeved on the outer surface of the telescopic column (201).
8. The coal screening device for coal mining according to claim 7, characterized in that: A connecting column (204) is fixedly mounted on the bottom of each of the four return springs (203) and the four telescopic columns (201); the four connecting columns (204) are fixedly mounted on the inner wall of the device body (1).