Anti-scattering coal conveying device

Abstract

The utility model provides an anti-scattering coal conveying device, and relates to the technical field of coal conveying. A crushing bin is fixed to the upper end of the base, a cover plate is mounted at the rear end of the crushing bin through bolts, a first crushing roller is mounted in the crushing bin through a bearing, and a belt pulley is fixed to the front end of a rotating shaft of the first crushing roller; according to the coal crushing device, the first crushing roller is driven by the first motor, the second crushing roller works cooperatively through the transmission mode of the belt wheel and the connecting belt, coal can be crushed effectively, coal particles are refined through the crushing effect, the problem of conveying blockage possibly caused by large coal blocks is solved, and the coal crushing efficiency is improved. And the specific surface area of the coal is increased, the coal can make more sufficient contact with oxygen in the subsequent combustion process, the combustion efficiency is improved, the coal large in size can be preliminarily smashed through the second smashing roller and then smashed again through the first smashing roller, and the smashing effect is good.

Description

Technical Field

[0001] This utility model relates to the field of coal conveying technology, and in particular to a coal conveying device that prevents spillage. Background Technology

[0002] In the modern energy industry system, thermal power generation occupies a pivotal position. Its stable and efficient operation plays a key role in ensuring the electricity demand of society. In the production process of thermal power plants, coal transportation is a basic and core link, which directly affects the subsequent combustion and power generation efficiency as well as the operating cost and benefits of the entire power plant. This utility model is a coal conveying device to prevent spillage.

[0003] Traditional coal conveying systems have numerous limitations in design and function, making it difficult to meet the ever-evolving needs of the thermal power generation industry. Coal, as a natural mineral resource, forms particles of varying sizes during mining, transportation, and storage, including large lumps. When these untreated coals enter traditional conveying systems, they often cause a series of problems. On the one hand, larger lumps can easily cause blockages at the inlet of the conveying device, transfer nodes, and the junctions between the conveyor belt and other components. This blockage not only interrupts the coal conveying process and halts power generation but can also damage the mechanical structure of the conveying device, increasing equipment maintenance costs and downtime, severely affecting the continuity and stability of thermal power plant production, and consequently reducing power generation efficiency and economic benefits. On the other hand, due to their relatively small specific surface area, lumps have limited contact area with oxygen during the combustion stage, resulting in incomplete combustion. Incomplete combustion not only wastes a large amount of coal energy but also reduces energy utilization. Utility Model Content

[0004] This disclosure relates to a coal conveying device that prevents spillage, in order to solve the problems mentioned in the background art.

[0005] In a first aspect, this disclosure provides a coal conveying device to prevent spillage, specifically including: a base;

[0006] A crushing chamber is fixed to the upper end of the base. A cover plate is bolted to the rear end of the crushing chamber. A crushing roller is mounted inside the crushing chamber via bearings. A pulley is fixed to the front end of the shaft of the crushing roller. A motor is bolted to the base. A pulley is fixed to the output shaft of the motor. A connecting belt connects the pulley on the output shaft of the motor to the pulley on the shaft of the crushing roller. A discharge hopper is welded to the right side of the crushing chamber. A middle seat is located on the right side of the base. Side seats are bolted to both sides of the middle seat. Both sets of side seats have... Two sets of support legs are fixed, and two sets of mounting plates are bolted to each of the two sets of side seats. Belt rollers are mounted between the two sets of mounting plates on the two sets of side seats via bearings. A conveyor belt is fitted between the two sets of belt rollers, and pulleys are fixed to the rear ends of both sets of belt rollers. Two sets of right-angle seats are bolted to the lower ends of the two sets of side seats, and cleaning rollers are mounted between the two sets of right-angle seats via bearings. Pulleys are fixed to the rear ends of the cleaning rollers, and a drive belt connects the pulleys at the rear ends of the cleaning rollers and the pulleys at the rear ends of the belt rollers. Both sets of cleaning rollers are in contact with the lower ends of the conveyor belt.

[0007] In at least some embodiments,

[0008] The lower end of the base is bolted with four sets of feet. A left support is bolted to the crushing chamber. A conveying component is installed on the left support. A second motor is bolted to the left support. A sprocket is fixed on the output shaft of the second motor. The output shaft of the second motor is connected to the conveying component by a transmission chain.

[0009] In at least some embodiments,

[0010] The second crushing roller is mounted on the left support via a bearing. A pulley is fixed to the front end of the second crushing roller, and a connecting belt connects the pulley at the front end of the second crushing roller to the pulley on the output shaft of the first motor.

[0011] In at least some embodiments,

[0012] The second crushing roller is located on the right side of the conveyor, and a baffle is bolted to the left support, with the baffle located below the second crushing roller.

[0013] In at least some embodiments,

[0014] The upper end of the crushing chamber is bolted to a feed hopper, the lower part of the feed hopper is provided with a discharge port, and a rotatable rotating rod is installed on the feed hopper, with a baffle plate fixed on the rotating rod.

[0015] In at least some embodiments,

[0016] A handle is fixed to the rotating rod, an arc-shaped plate is welded to the handle, an arc-shaped through groove is provided on the arc-shaped plate, and a fixing screw is fixed to the feed hopper. The fixing screw is located in the arc-shaped through groove on the arc-shaped plate, and a locking nut is threaded onto the fixing screw.

[0017] In at least some embodiments,

[0018] The front and rear ends of the intermediate seat and the two sets of side seats are all fixed with support seats, and the support seats are fixed with guard plates, which are located on the front and rear sides of the conveyor belt respectively.

[0019] In at least some embodiments,

[0020] The intermediate seat is equipped with a tension roller and a drive roller via bearings, and the conveyor belt is fitted onto the tension roller and the drive roller.

[0021] In at least some embodiments,

[0022] The intermediate seat is provided with a sliding groove, and a tensioning rod is installed on the rotating shaft of the tensioning roller. The intermediate seat is provided with a through hole, through which the tensioning rod passes and is locked by a nut.

[0023] In at least some embodiments,

[0024] A gearbox is bolted to the intermediate seat, the output end of the gearbox is connected to the drive roller, and a No. 3 motor is bolted to the gearbox.

[0025] This utility model provides a coal conveying device to prevent spillage, which has the following beneficial effects:

[0026] In this invention, a first-stage crushing roller is driven by a first-stage electric motor, and a second-stage crushing roller works in conjunction with the transmission via a pulley and connecting belt. This effectively crushes the coal, refining the coal particles. This not only solves the problem of conveyor blockage caused by large pieces of coal, but also increases the specific surface area of ​​the coal, allowing it to come into more complete contact with oxygen during subsequent combustion, improving combustion efficiency, reducing energy waste and pollutant emissions, thereby enhancing the energy utilization efficiency and environmental performance of thermal power plants. Furthermore, for larger pieces of coal, they can be placed on a conveyor and initially crushed by the second-stage crushing roller, and then further crushed by the first-stage crushing roller, resulting in a good crushing effect.

[0027] Furthermore, in this utility model, the rotatable rotating rod, baffle plate, handle, arc plate, fixing screw, and locking nut on the feed hopper can flexibly adjust the feed amount according to the actual coal conveying needs. At the same time, the design of the guard plates on both sides of the conveyor belt, as well as the middle seat and side seat, can effectively prevent coal from sliding off the sides during the conveying process, reduce raw material waste and site cleanup costs caused by coal spillage, keep the working area clean, reduce the adverse effects of coal accumulation on equipment operation, and improve the stability and reliability of equipment operation.

[0028] Furthermore, in this invention, the two sets of cleaning rollers are connected to the belt pulley at the rear end of the belt roller via a transmission belt, enabling coordinated rotation with the conveyor belt. This allows for timely cleaning of coal particles and impurities adhering to the lower end of the conveyor belt. This design keeps the conveyor belt clean, reduces problems such as belt misalignment and wear caused by coal residue, extends the service life of the conveyor belt, reduces equipment maintenance costs, and also avoids secondary pollution caused by coal residue in subsequent conveying processes, ensuring the stability of coal conveying quality. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0030] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0031] In the attached diagram:

[0032] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0033] Figure 2 A schematic diagram of the internal structure of the shredding chamber of this application is shown;

[0034] Figure 3 This application shows Figure 2 A magnified structural diagram of part A in the middle;

[0035] Figure 4 A schematic diagram of the feed hopper of this application is shown;

[0036] Figure 5 This application shows Figure 4 A magnified structural diagram of part B in the middle section;

[0037] Figure 6 A structural schematic diagram of the middle seat and side seat portions of this application is shown;

[0038] Figure 7 This application shows Figure 6 A magnified structural diagram of section C;

[0039] Figure 8 This application shows Figure 6 A magnified structural diagram of part D in the middle.

[0040] List of reference numerals

[0041] 1. Base; 11. Foot; 12. Crushing chamber; 121. Cover plate; 122. No. 1 crushing roller; 123. No. 1 motor; 124. Discharge hopper; 13. Left support; 131. No. 2 crushing roller; 132. Baffle plate; 14. Conveying component; 141. No. 2 motor; 15. Feed hopper; 151. Rotating rod; 152. Handle; 1521. Arc plate; 153. Baffle plate; 154. Fixing screw;

[0042] 2. Intermediate seat; 21. Side seat; 211. Support leg; 22. Support base; 221. Guard plate; 23. Mounting plate; 231. Belt roller; 232. Conveyor belt; 233. Right angle seat; 234. Cleaning roller; 2341. Drive belt; 24. Tensioning roller; 241. Tensioning rod; 25. Drive roller; 26. Gearbox; 261. No. 3 electric motor. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0044] Example 1: Please refer to Figures 1 to 8 :

[0045] This utility model proposes a coal conveying device to prevent spillage, comprising: a base 1;

[0046] A crushing chamber 12 is fixed to the upper end of the base 1. A cover plate 121 is bolted to the rear end of the crushing chamber 12. A first crushing roller 122 is installed inside the crushing chamber 12 via bearings. A pulley is fixed to the front end of the shaft of the first crushing roller 122. A first motor 123 is bolted to the base 1. A pulley is fixed to the output shaft of the first motor 123. A connecting belt connects the pulley on the output shaft of the first motor 123 to the pulley on the shaft of the first crushing roller 122. A discharge hopper 124 is welded to the right side of the crushing chamber 12. An intermediate seat 2 is provided on the right side of the base 1. Side seats 21 are bolted to both sides of the intermediate seat 2. Two sets of supports are fixed to each of the two sets of side seats 21. Leg 211, two sets of mounting plates 23 are bolted to each of the two sets of side seats 21, and belt rollers 231 are mounted between the two sets of mounting plates 23 on the two sets of side seats 21 via bearings. A conveyor belt 232 is fitted between the two sets of belt rollers 231, and pulleys are fixed to the rear ends of the two sets of belt rollers 231. Two sets of right-angle seats 233 are bolted to the lower ends of the two sets of side seats 21, and cleaning rollers 234 are mounted between the two sets of right-angle seats 233 via bearings. A pulley is fixed to the rear end of the cleaning rollers 234, and a transmission belt 2341 connects the pulley at the rear end of the cleaning rollers 234 and the pulley at the rear end of the belt rollers 231. Both sets of cleaning rollers 234 are in contact with the lower end of the conveyor belt 232.

[0047] In this embodiment of the disclosure,

[0048] Four sets of feet 11 are bolted to the lower end of the base 1. A left support 13 is bolted to the crushing chamber 12. A conveyor 14 is mounted on the left support 13. A second motor 141 is bolted to the left support 13. A sprocket is fixed to the output shaft of the second motor 141. The output shaft of the second motor 141 is connected to the conveyor 14 via a transmission chain. A second crushing roller 131 is mounted on the left support 13 via bearings. A pulley is fixed to the front end of the second crushing roller 131. A connecting belt connects the pulley at the front end of the second crushing roller 131 to the pulley on the output shaft of the first motor 123. The second crushing roller 131 is located to the right of the conveyor 14. A baffle 132 is bolted to the left support 13. The baffle 132 is located below the second crushing roller 131, and its function is... The mechanism involves a primary motor 123 on base 1 driving a primary crushing roller 122, which, through a pulley and connecting belt, enables a secondary crushing roller 131 on the left support 13 to work in tandem. This effectively crushes the coal. For larger pieces of coal, they can be placed on a conveyor 14 on the left support 13, and the secondary motor 141 drives the secondary crushing roller 131 for initial crushing. Then, the primary crushing roller 122 performs further crushing. This dual crushing mechanism provides excellent crushing results, solves the problem of conveyor blockage caused by large pieces of coal, and increases the specific surface area of ​​the coal. This allows the coal to come into more complete contact with oxygen during subsequent combustion, improving combustion efficiency, reducing energy waste and pollutant emissions, thereby enhancing the energy utilization efficiency and environmental performance of thermal power plants.

[0049] Example 2, based on Example 1,

[0050] A feed hopper 15 is bolted to the upper end of the crushing chamber 12. A discharge port is provided below the feed hopper 15. A rotatable rotating rod 151 is installed on the feed hopper 15. A baffle plate 153 is fixed on the rotating rod 151. A handle 152 is fixed on the rotating rod 151. An arc-shaped plate 1521 is welded to the handle 152. An arc-shaped through groove is provided on the arc-shaped plate 1521. A fixing screw 154 is fixed on the feed hopper 15. The fixing screw 154 is located in the arc-shaped through groove on the arc-shaped plate 1521. A locking nut is threaded onto the fixing screw 154. Its function is to loosen the locking nut on the fixing screw 154 and turn the handle 152 to rotate the baffle plate 153. The feed amount can be flexibly adjusted according to the actual coal conveying needs.

[0051] Example 3, based on Examples 1 and 2,

[0052] The front and rear ends of the intermediate seat 2 and the two sets of side seats 21 are all fixed with support seats 22. The support seats 22 are fixed with guard plates 221, which are located on the front and rear sides of the conveyor belt 232 respectively. The intermediate seat 2 is equipped with a tension roller 24 and a drive roller 25 through bearings. The conveyor belt 232 is fitted on the tension roller 24 and the drive roller 25. The intermediate seat 2 is provided with a sliding groove. The tension rod 241 is installed on the rotating shaft of the tension roller 24. The intermediate seat 2 is provided with a through hole. The tension rod 241 passes through the through hole and is locked with a nut. The intermediate seat 2 is equipped with a gearbox 26 through bolts. The output end of the gearbox 26 is connected to the drive roller 25. The gearbox 26 is equipped with a No. 3 motor 261 through bolts. Its function is to run the No. 3 motor 261 to make the conveyor belt 232 run and realize the coal conveying. The guard plates 221 on both sides of the conveyor belt 232 can effectively prevent coal from sliding off from both sides during the conveying process.

[0053] The working principle of this embodiment is as follows: When the No. 1 motor 123 is started, the pulley on its output shaft drives the No. 1 crushing roller 122 to rotate through the connecting belt. At the same time, the pulley on the output shaft of the No. 1 motor 123 is also connected to the pulley at the front end of the No. 2 crushing roller 131 through the connecting belt, so that the No. 2 crushing roller 131 rotates synchronously.

[0054] For coal with a small volume, it is first poured into the feed hopper 15. The coal enters the crushing chamber 12 from the feed hopper 15 and is then crushed by the first crushing roller 122. The rotating rod 151 on the feed hopper 15 can rotate around the axis. The baffle plate 153 on the rotating rod 151 can adjust the size of the feed opening. The position of the baffle plate 153 can be adjusted by rotating the rotating rod 151 with the handle 152. The arc-shaped through groove on the arc plate 1521 cooperates with the fixing screw 154 and is fixed with a locking nut, thereby accurately controlling the coal feeding speed and feeding amount.

[0055] For larger coal pieces, they are first placed on the conveyor 14. The second motor 141 is then started. The output shaft of the second motor 141 drives the conveyor 14 through the transmission chain, conveying the coal to the area below the second crushing roller 131. The second crushing roller 131 performs preliminary crushing of the coal. The pre-crushed coal falls into the first crushing roller 122, where it is crushed again. Through this double crushing process, the coal is refined into suitable particle sizes, effectively preventing large pieces of coal from causing blockages during subsequent conveying and increasing the specific surface area of ​​the coal in contact with oxygen, thus creating conditions for efficient combustion.

[0056] The third motor 261 on the intermediate seat 2 starts, driving the gearbox 26 to rotate. The gearbox 26 drives the drive roller 25 to rotate. Since the conveyor belt 232 is fitted onto the drive roller 25, the tension roller 24, and the belt rollers 231 on the two sets of side seats 21, the conveyor belt 232 starts to operate, realizing the transportation of coal.

[0057] During the conveying process, the guard plates 221 on both sides of the conveyor belt 232 can prevent coal from spilling from both sides. At the same time, the cleaning roller 234 at the lower end of the conveyor belt 232 is connected to the transmission belt 2341 between the belt roller 231 and the pulley at the rear end of the belt roller 231, so as to achieve synchronous reverse rotation with the conveyor belt 232, clean the coal and impurities adhering to the lower end of the conveyor belt 232 in a timely manner, keep the conveyor belt 232 clean, reduce the potential for equipment failure, and ensure the stability and continuity of coal conveying.

[0058] The following points should be noted in this article:

[0059] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0060] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0061] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A coal conveying device to prevent spillage, comprising: Base (1); characterized in that, A crushing chamber (12) is fixed to the upper end of the base (1). A cover plate (121) is bolted to the rear end of the crushing chamber (12). A first crushing roller (122) is installed inside the crushing chamber (12) via a bearing. A pulley is fixed to the front end of the shaft of the first crushing roller (122). A first motor (123) is bolted to the base (1). A pulley is fixed to the output shaft of the first motor (123). A connecting belt connects the pulley on the output shaft of the first motor (123) to the pulley on the shaft of the first crushing roller (122). A discharge hopper (124) is welded to the right side of the crushing chamber (12). An intermediate seat (2) is provided on the right side of the base (1). Side seats (21) are bolted to both the left and right sides of the intermediate seat (2). Two sets of supports are fixed to the two sets of side seats (21). The support leg (211) has two sets of mounting plates (23) bolted on each of the two sets of side seats (21). Belt rollers (231) are mounted between the two sets of mounting plates (23) on the two sets of side seats (21) via bearings. A conveyor belt (232) is fitted between the two sets of belt rollers (231). Pulleys are fixed to the rear ends of the two sets of belt rollers (231). Two right-angle seats (233) are bolted to the lower ends of the two sets of side seats (21). Cleaning rollers (234) are mounted between the two sets of right-angle seats (233) via bearings. Pulleys are fixed to the rear ends of the cleaning rollers (234). A transmission belt (2341) connects the pulley at the rear end of the cleaning rollers (234) and the pulley at the rear end of the belt rollers (231). Both sets of cleaning rollers (234) are in contact with the lower ends of the conveyor belt (232).

2. The coal conveying device for preventing spillage according to claim 1, characterized in that, The lower end of the base (1) is bolted with four sets of feet (11). The crushing chamber (12) is bolted with a left support (13). The left support (13) is equipped with a conveyor (14). The left support (13) is bolted with a second motor (141). The output shaft of the second motor (141) is fixed with a sprocket. The output shaft of the second motor (141) is connected to the conveyor (14) by a transmission chain.

3. The coal conveying device for preventing spillage according to claim 2, characterized in that, The left support (13) is equipped with a second crushing roller (131) via a bearing. A pulley is fixed at the front end of the second crushing roller (131). A connecting belt connects the pulley at the front end of the second crushing roller (131) to the pulley on the output shaft of the first motor (123).

4. The coal conveying device for preventing spillage according to claim 3, characterized in that, The second crushing roller (131) is located on the right side of the conveyor (14), and a baffle (132) is bolted onto the left support (13), with the baffle (132) located below the second crushing roller (131).

5. A coal conveying device for preventing spillage according to claim 2, characterized in that, The upper end of the crushing chamber (12) is bolted with a feed hopper (15), and a discharge port is provided below the feed hopper (15). A rotatable rotating rod (151) is installed on the feed hopper (15), and a baffle plate (153) is fixed on the rotating rod (151).

6. The coal conveying device for preventing spillage according to claim 5, characterized in that, A handle (152) is fixed on the rotating rod (151), an arc plate (1521) is welded on the handle (152), an arc groove is provided on the arc plate (1521), and a fixing screw (154) is fixed on the feed hopper (15). The fixing screw (154) is located in the arc groove on the arc plate (1521), and a locking nut is threaded onto the fixing screw (154).

7. The coal conveying device for preventing spillage according to claim 1, characterized in that, The front and rear ends of the intermediate seat (2) and the two sets of side seats (21) are all fixed with support seats (22), and the support seats (22) are fixed with guard plates (221), which are located on the front and rear sides of the conveyor belt (232).

8. The coal conveying device for preventing spillage according to claim 7, characterized in that, The intermediate seat (2) is equipped with a tension roller (24) and a drive roller (25) via bearings, and the conveyor belt (232) is fitted onto the tension roller (24) and the drive roller (25).

9. A coal conveying device for preventing spillage according to claim 8, characterized in that, The intermediate seat (2) is provided with a sliding groove, and a tensioning rod (241) is installed on the rotating shaft of the tensioning roller (24). The intermediate seat (2) is provided with a through hole, and the tensioning rod (241) passes through the through hole and is locked by a nut.

10. A coal conveying device for preventing spillage according to claim 9, characterized in that, A gearbox (26) is bolted to the intermediate seat (2). The output end of the gearbox (26) is connected to the drive roller (25). A third motor (261) is bolted to the gearbox (26).

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