Cooling device for coal mine transportation
By installing water supply pipes and rotating columns in the coal mine transportation equipment, water is sprayed and the coal is turned over, solving the problem of the difficulty in cooling the inside of the coal in the existing equipment, and achieving a comprehensive cooling effect and equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2026-03-24
AI Technical Summary
Existing coal mine transport cooling devices cannot effectively turn over the coal mine, resulting in only the surface coal mine coming into contact with the cooling medium, while the internal coal mine cannot be sufficiently cooled, and the cooling effect is incomplete.
A coal mine transportation cooling device was designed. Water supply pipes and rotating columns were installed on both sides of the belt conveyor. Water was sprayed onto the coal through nozzles and the coal was turned over by rake teeth. At the same time, the principle of water evaporation heat absorption was used for preliminary cooling. The cooling effect was enhanced by changing the motion mode to increase the contact area between the coal and the air.
This technology enables simultaneous and comprehensive cooling during coal transportation, improving water resource utilization, reducing equipment wear, enhancing cooling effectiveness, and extending the service life of the equipment.
Smart Images
Figure CN224025632U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mine transportation technical field, especially a coal mine transportation cooling device. BACKGROUND
[0002] Under the high temperature mine environment, coal mining and transportation can absorb the surrounding heat and temperature, especially long distance transportation or storage, the internal heat of coal pile gathers, when reaching certain temperature and contacting with oxygen fully, it is extremely easy to cause spontaneous combustion, which not only can cause the loss of coal resources, but also can cause fire and even explosion, seriously threatens the mine safety and personnel life.
[0003] The coal mine cooling device of the prior art has the problem of being unable to effectively turn over the coal mine during the cooling process, because the coal mine is usually in a stacked state during transportation, if it cannot be fully turned over, only the surface coal mine can contact the cooling medium, and the internal coal mine is difficult to be effectively cooled, so that the cooling effect is greatly reduced, and the strict requirement of coal mine temperature control in actual production cannot be met. UTILITY MODEL CONTENT
[0004] In view of the above technical problems, the utility model provides a coal mine transportation cooling device to solve the problem of incomplete cooling of the coal mine cooling device of the prior art and the problem of being unable to fully cool the coal mine.
[0005] In order to achieve the above purpose, the technical scheme of the utility model is as follows:
[0006] A coal mine transportation cooling device, comprising a support column, four support columns are provided, the four support columns are connected through a fixed plate, a screening box is arranged on one side of the top of the fixed plate, a screen is arranged in the screening box, an inlet is arranged on the top of the screening box, two outlets are arranged on the side of the screening box corresponding to the position of the screen, a belt conveyor is arranged on each of the two outlets, support plates are arranged on the two sides of the belt conveyor, a rotating column is rotatably arranged between the two support plates, a plurality of rake teeth are uniformly arranged on the outer wall of the rotating column, a first motor is arranged on the side of one of the support plates, a driving gear is arranged on the main shaft of the first motor, a driven gear is connected to the driving gear, the rotating column is connected to the driven gear after penetrating through the support plate on which the first motor is arranged, a water supply pipe is further arranged between the two support plates, and a plurality of nozzles are arranged on the water supply pipe.
[0007] Further, the support plates on the two ends of the belt conveyor are overlapped with cooling boxes, and the water supply pipe and the rotating column are arranged in the cooling boxes.
[0008] Further, the fixed box is provided between the fixed plate and the screening box, the fixed box is provided with a plurality of telescopic columns on the bottom, the telescopic spring is sleeved on the telescopic column, the bottom of the telescopic spring is connected with the bottom of the fixed box, the top of the telescopic spring is connected with the movable plate, the screening box is arranged on the top of the movable plate, and the second motor is arranged on one side of the top of the screening box.
[0009] Further, the inner ring of the driven gear is provided with a guide column, one end of the rotating column connected with the driven gear is a reciprocating screw rod, and the guide column is slidingly installed in the sliding groove of the reciprocating screw rod.
[0010] Compared with the prior art, the beneficial effects of the utility model are that in the process that the belt conveyor transports coal, the coal cooling link is synchronously unfolded. The water supply pipe between the supporting plates on both sides of the belt conveyor starts to spray water to the coal through the nozzles. After the water contacts the coal, the water rapidly absorbs the heat emitted by the coal and starts to evaporate, and the coal is preliminarily cooled by using the heat absorption principle of water evaporation. At the same time, the first motor is started, the driving gear on the main shaft of the first motor rotates, is engaged with the driven gear, and thus drives the rotating column to rotate. The rake teeth uniformly distributed on the outer wall of the rotating column rotate and continuously turn over the coal. This action improves the cooling effect of the water on the coal on the one hand by making the contact between the coal and the water more comprehensive, and on the other hand, the contact area between the coal and the air is increased, the heat emission speed from the coal to the air is accelerated, and the coal cooling effect is further strengthened.
[0011] The cooling box overlapped on the supporting plates at both ends of the belt conveyor covers the water supply pipe and the rotating column, which can prevent water splashing during the water spraying process, improve the water resource utilization rate, and protect the internal structure, reduce the abrasion of the coal and other impurities on the water supply pipe, the rotating column and other components, and prolong the service life of the device. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a three-dimensional schematic view of the utility model;
[0013] Figure 2 It is a fixed plate structure schematic view of the utility model;
[0014] Figure 3 It is Figure 2 It is a local enlarged view of A in the middle;
[0015] Figure 4 It is Figure 2 It is a local enlarged view of B in the middle.
[0016] In the drawing:
[0017] 1, support column; 2, fixed plate; 3, cooling box; 4, belt conveyor; 6, driving gear; 7, driven gear; 8, guide column; 9, chute; 10, rotating column; 11, first motor; 12, water supply pipe; 13, harrow tooth; 14, fixed box; 15, movable plate; 16, extension spring; 17, telescopic column; 18, screening box; 19, screen; 20, discharge port; 21, inlet; 22, second motor; 23, eccentric wheel; 24, support plate; 25, nozzle; 26, reciprocating screw. DETAILED DESCRIPTION
[0018] To make the purpose, technical scheme and advantages of the present application more clear and understandable, the present application will be further described in detail below with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present application.
[0019] The utility model provides a coal mine transportation cooling device, including support column 1, four support column 1 are equipped with, four support column 1 are connected through fixed plate 2, and one side of fixed plate 2 top is equipped with screening box 18, and the screen 19 is arranged in screening box 18, and the top of screening box 18 is equipped with inlet 21, and the side of screening box 18 is equipped with two discharge gates 20, and the two discharge gates 20 are respectively equipped with belt conveyor 4, and coal enters from the top inlet 21 of screening box 18, and falls on the screen 19 by gravity. Because of the existence of screen 19, coal of different particle sizes will be separated, and coal of smaller particle size will be discharged from the lower discharge gate 20, and coal of larger particle size will be discharged from the upper discharge gate 20. Two discharge gates 20 are respectively connected with the belt conveyor 4, and the two sides of the belt conveyor 4 are provided with support plates 24, and a rotating column 10 is rotatably installed between the two support plates 24, and a plurality of rake teeth 13 are uniformly arranged on the outer wall of the rotating column 10, and a first motor 11 is installed on the side of one of the support plates 24, and a driving gear 6 is installed on the main shaft of the first motor 11, and a driven gear 7 is connected with the driving gear 6, and the rotating column 10 is connected with the driven gear 7 after passing through the support plate 24 where the first motor 11 is installed, and a water supply pipe 12 is also installed between the two support plates 24, and a plurality of nozzles 25 are arranged on the water supply pipe 12, and the water supply pipe 12 installed between the two support plates 24 of the belt conveyor 4 starts to spray water on the coal. When water comes into contact with coal, it quickly absorbs the heat emitted by the coal and begins to evaporate, using the principle of water evaporation to absorb heat to preliminarily cool the coal. At the same time, the first motor 11 is started, and the driving gear 6 on the main shaft of the first motor 11 rotates and engages with the driven gear 7, thereby driving the rotating column 10 to rotate. The rake teeth 13 evenly distributed on the outer wall of the rotating column 10 rotate and continuously turn the coal. This action, on the one hand, makes the contact between coal and water more comprehensive, improving the cooling effect of water on coal; on the other hand, it increases the contact area between coal and air, speeds up the emission of heat from coal to air, and further enhances the cooling effect of coal.
[0020] The support plates 24 at both ends of the belt conveyor 4 are overlapped with cooling boxes 3, and the water supply pipe 12 and the rotating column 10 are located in the cooling boxes 3. The cooling boxes 3 overlapped on the support plates 24 at both ends of the belt conveyor 4 contain the water supply pipe 12 and the rotating column 10. This can effectively prevent water splashing during the spraying process, so that the sprayed water can act on the coal to the greatest extent, improve the utilization rate of water resources, and reduce the waste of water resources.
[0021] The fixed box 14 is provided between the fixed plate 2 and the screening box 18, and is a structure without a top surface. The inner bottom of the fixed box 14 is provided with a plurality of telescopic columns 17, the telescopic columns 17 are sleeved with telescopic springs 16, the bottom of the telescopic spring 16 is connected with the inner bottom of the fixed box 14, the top of the telescopic spring 16 is connected with a movable plate 15, and the screening box 18 is arranged on the top of the movable plate 15. The top of the screening box 18 is provided with a second motor 22, and the main shaft of the second motor 22 is connected with an eccentric wheel 23. The fixed box 14, the telescopic column 17 and the telescopic spring 16 inside the fixed box 14 and the movable plate 15 jointly constitute a damping structure. When the second motor 22 on the top of the screening box 18 drives the eccentric wheel 23 to rotate, the vibration generated by the eccentric wheel 23 is transmitted to the screening box 18. At this time, the damping structure plays a role, and the telescopic spring 16 can effectively buffer and absorb vibration energy under the assistance of the telescopic column 17, thereby reducing the influence of the vibration of the screening box 18 on the stability of the whole device. This not only reduces the noise generated during the operation of the equipment, but also avoids the loosening and damage of the equipment structure caused by excessive vibration, ensures the continuous and efficient screening work, and improves the reliability and stability of the equipment.
[0022] The inner ring of the driven gear 7 is provided with a guide column 8, one end of the rotating column 10 connected with the driven gear 7 is a reciprocating screw 26, and the guide column 8 is slidingly installed in the sliding groove 9 of the reciprocating screw 26. When the driving gear 6 drives the driven gear 7 to rotate, since the guide column 8 provided in the inner ring of the driven gear 7 and the sliding groove 9 of the reciprocating screw 26 are in a sliding connection relationship, the guide column 8 will move in a circle together with the driven gear 7. In this circular motion process, the guide column 8 slides in the sliding groove 9 of the reciprocating screw 26. Since the guide column 8 cannot be separated from the sliding groove 9, its circular motion will be converted into left and right movement along the axis of the reciprocating screw 26. This conversion makes the reciprocating screw 26 connected with the driven gear 7 move linearly in the left and right directions under the action of the guide column 8. In this way, through the rotation of the driven gear 7, the circular motion is converted into linear motion of the reciprocating screw 26 by cooperation of the guide column 8 and the sliding groove 9 of the reciprocating screw 26, the motion form is changed, the stirring effect is improved, and the cooling efficiency of the coal is accelerated.
[0023] In use:
[0024] When the coal mine transportation cooling device is used, coal enters from the feeding port 21 on the top of the screening box 18 and falls onto the screen 19 in the screening box 18 under the action of gravity. Due to the screening effect of the screen 19, the coal with a smaller particle size passes through the screen 19 from the lower discharge port 20 and falls onto the corresponding belt conveyor 4, and the coal with a larger particle size remains above the screen 19 and falls from the upper discharge port 20 onto another belt conveyor 4. In the process of transporting the coal by the belt conveyor 4, the first motor 11 installed on one side of the support plate 24 of the belt conveyor 4 is started, the driving gear 6 on the main shaft of the first motor 11 drives the driven gear 7 engaged with the driving gear 6 to rotate, thereby rotating the rotating column 10 connected to the driven gear 7, and the rake teeth 13 on the outer wall of the rotating column 10 turn over the coal on the belt. At the same time, the plurality of nozzles 25 on the water supply pipe 12 installed between the two support plates 24 spray water to the coal, and the water evaporates after absorbing heat when contacting the coal, thereby reducing the temperature of the coal. The rotating rake teeth 13 enable the coal to be in full contact with the water and increase the contact area of the coal with the air, thereby further enhancing the heat dissipation effect. The cooling boxes 3 overlapped on the support plates 24 at both ends of the belt conveyor 4 can prevent water splashing when spraying water and also avoid the abrasion of the water supply pipe 12 and the rotating column 10 by impurities in the coal. During the screening process, the second motor 22 drives the eccentric wheel 23 to rotate on one side of the top of the screening box 18, and the vibration generated is transmitted to the screening box 18, which can improve the screening efficiency. The telescopic spring 16 sleeved on the telescopic column 17 in the fixed box 14 between the screening box 18 and the fixed plate 2 can buffer and absorb the vibration energy, thereby reducing the influence of the vibration on the stability of the entire device and ensuring the stable operation of the equipment.
[0025] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A coal mine transportation cooling device, comprising support columns (1), four support columns (1) are provided, the four support columns (1) are connected by a fixing plate (2), a screening box (18) is provided on one side of the top of the fixing plate (2), a screen (19) is provided inside the screening box (18), a feed inlet (21) is provided on the top of the screening box (18), and two discharge ports (20) are installed on the side of the screening box (18) corresponding to the position of the screen (19), and belt conveyors (4) are respectively installed on the two discharge ports (20), characterized in that: Both sides of the belt conveyor (4) are provided with support plates (24), the rotating column (10) is rotatably installed between the two support plates (24), the outer wall of the rotating column (10) is uniformly provided with a plurality of rakes (13), the side of one of the support plates (24) is provided with the first motor (11), the main shaft of the first motor (11) is provided with the driving gear (6), the driving gear (6) is connected with the driven gear (7), the rotating column (10) is connected with the driven gear (7) after penetrating through the support plate (24) provided with the first motor (11), the water supply pipe (12) is further installed between the two support plates (24), and a plurality of nozzles (25) are arranged on the water supply pipe (12).
2. The coal mine transportation cooling device according to claim 1, characterized in that: The support plates (24) at both ends of the belt conveyor (4) are overlapped with the cooling boxes (3), and the water supply pipe (12) and the rotating column (10) are located in the cooling boxes (3).
3. The coal mine transportation cooling device according to claim 2, characterized in that: The fixed box (14) is provided between the fixed plate (2) and the screening box (18), the fixed box (14) is a top-free structure, a plurality of telescopic columns (17) are arranged on the bottom of the fixed box (14), the telescopic spring (16) is sleeved on the telescopic column (17), the bottom of the telescopic spring (16) is connected with the bottom of the fixed box (14), the top of the telescopic spring (16) is connected with the movable plate (15), the screening box (18) is arranged on the top of the movable plate (15), the second motor (22) is arranged on one side of the top of the screening box (18), and the main shaft of the second motor (22) is connected with the eccentric wheel (23).
4. The coal mine transportation cooling device according to claim 3, characterized in that: The inner ring of the driven gear (7) is provided with the guide column (8), one end of the rotating column (10) connected with the driven gear (7) is the reciprocating screw (26), and the guide column (8) is slidingly installed in the sliding groove (9) of the reciprocating screw (26).