A raw material crushing device for coal-based thermal power additive mechanical synthesis
Patent Information
- Application Number
- CN202522241911.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-23
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-23
AI Technical Summary
Traditional pulverizing devices are prone to generating localized high temperatures when grinding natural coal, which leads to coal powder oxidation, reducing electrical conductivity and thermoelectric conversion efficiency. Furthermore, the oxidized coal powder has poor interfacial compatibility with the cement matrix, affecting the mechanical and thermoelectric properties of the composite material.
The device includes a crushing box, jaw crusher, motor, grinding rollers, cooling system and temperature detector. Coolant is delivered to the cooling tank by a water pump to cool the grinding rollers. The cooling tank is cooled by a liquid inlet plate and liquid inlet ring. The stress of the coolant entering the cooling tank is increased. The liquid outlet pipe is protected by a protective plate. Baffles are evenly distributed in the coal mine. Dust collection port reduces dust.
It effectively avoids coal powder oxidation caused by excessively high grinding head temperature, improves the electrical conductivity and thermoelectric conversion efficiency of coal powder, improves the interfacial compatibility between coal powder and cement matrix, and reduces dust pollution during the crushing process.
Smart Images
Figure CN224926155U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building material processing technology, specifically to a raw material crushing device for the mechanical synthesis of coal-based thermoelectric additives. Background Technology
[0002] Against the backdrop of rapid development in green energy technologies, thermoelectric materials have attracted widespread attention due to their ability to convert waste heat into electrical energy. Traditional grinding devices, when grinding natural coal, are prone to generating localized high temperatures due to high-speed friction of the grinding head, leading to oxidation of the coal powder surface and reducing its electrical conductivity and thermoelectric conversion efficiency. Furthermore, the oxidized coal powder exhibits poor interfacial compatibility with the cement matrix, further affecting the mechanical and thermoelectric properties of the composite material. Therefore, there is an urgent need for a raw material grinding device for the mechanical synthesis of coal-based thermoelectric additives to solve these problems. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a raw material crushing device for the mechanical synthesis of coal-based thermoelectric additives that is simple in structure, rationally designed, and easy to use, thereby solving the aforementioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a crushing box and a jaw crusher; the crushing box is a hollow cylindrical structure, the jaw crusher is mounted on top of the crushing box using a support rod, and the jaw crusher and the crushing box are connected in a through manner. It also includes: The motor is fixed on the top surface of the grinding box. The grinding roller is screwed into the grinding box by bearings. The output end of the motor is connected to the top of the grinding roller. The motor is connected to an external power source. A cold water tank is provided inside the grinding roller. The inlet and outlet of the cold water tank are respectively located on the top and bottom of the grinding roller. The water inlet assembly is located on the grinding roller. The grinding balls are a plurality of balls, which are fixed at equal intervals on the inclined surface below the grinding head. A water storage tank is fixed on the ring wall of the crushing chamber, a water pump is fixed on the water storage tank, and a water inlet pipe is provided between the water pump and the water inlet assembly. The water pump is connected to an external power source. The liquid outlet pipe is fixed at the bottom of the crushing box and is connected to the water outlet and the water storage tank.
[0005] Furthermore, the water inlet assembly includes: The protective box is a hollow cylindrical structure and is fixed on the top of the crushing box. The grinding roller is screwed into the protective box by bearings. The motor is fixed on the protective box and the water inlet pipe is connected to the protective box. The liquid guiding plate consists of several plates, which are fixed at equal angles on the annular wall of the grinding roller, and the liquid guiding plate is located above the water inlet. The liquid inlet ring is an inverted conical structure, fixed to the inner wall of the protective box, and the water inlet is located inside the liquid inlet ring. A temperature detector is installed on the water storage tank, and the sensing end of the temperature detector is installed on the inner wall of the water storage tank.
[0006] Furthermore, the crushing box is fixed with a protective railing, and the protective box is located inside the protective railing.
[0007] Furthermore, a protective plate is fixed to the inner wall of the opening at the bottom of the pulverizing box, and the liquid outlet pipe is located inside the protective plate.
[0008] Furthermore, a dust suction port is provided through the annular wall of the pulverizing box, and the dust suction port is connected to an external air pump.
[0009] Furthermore, a baffle is fixed at an equal angle on the inclined surface above the grinding roller, and the baffle is configured to abut against the inner wall of the grinding box.
[0010] Compared with the prior art, the beneficial effects of this utility model are: the raw material crushing device for mechanical synthesis of coal-based thermoelectric additives described in this utility model uses a water pump to transport the coolant in the water storage tank to the cooling tank to cool the grinding head and avoid the grinding head temperature from being too high, which would cause coal oxidation. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a schematic diagram of the structure of the crushing box and the water inlet assembly in this utility model.
[0013] Figure 3 This is a schematic diagram of the water inlet component in this utility model.
[0014] Figure 4 This is a schematic diagram of the internal structure of the crushing box in this utility model.
[0015] Figure 5 This is a schematic diagram of the grinding roller in this utility model.
[0016] Explanation of reference numerals in the attached figures: 1. Crushing box; 2. Jaw crusher; 3. Motor; 4. Grinding roller; 5. Cold water tank; 6. Water inlet; 7. Water outlet; 8. Grinding balls; 9. Water storage tank; 10. Water pump; 11. Liquid outlet pipe; 12. Water inlet assembly; 13. Protective box; 14. Liquid inlet plate; 15. Liquid inlet ring; 16. Temperature detector; 17. Protective railing; 18. Protective plate; 19. Dust suction port; 20. Baffle. Detailed Implementation
[0017] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0018] like Figures 1-5 As shown, this specific embodiment adopts the following technical solution: it includes a crushing box 1 and a jaw crusher 2; the crushing box 1 is a hollow cylindrical structure, the jaw crusher 2 is set above the crushing box 1 by means of a support rod, and the jaw crusher 2 and the crushing box 1 are connected in a through manner. It also includes: The motor 3 is fixed on the top surface of the crushing box 1. The grinding roller 4 is screwed into the crushing box 1 by bearings, and the output end of the motor 3 is connected to the top of the grinding roller 4. The motor 3 is connected to an external power source. A cold water tank 5 is provided inside the grinding roller 4. The inlet 6 and outlet 7 of the cold water tank 5 are respectively set on the top and bottom of the grinding roller 4. The water inlet assembly 12 is set on the grinding roller 4. The rotation of the grinding roller 4 is controlled by the motor 3 to facilitate the secondary crushing of natural coal. A baffle 20 is fixed at an equal angle on the inclined surface above the grinding roller 4. The baffle 20 is set to abut against the inner wall of the crushing box 1 to facilitate the even distribution of coal in the crushing box 1. Grinding balls 8, there are several grinding balls 8, and they are fixed at equal intervals on the inclined surface below the grinding roller head 4 to improve the grinding effect of the grinding roller head 4; The water storage tank 9 is fixed on the ring wall of the crushing box 1. The water pump 10 is fixed on the water storage tank 9, and an inlet pipe is provided between the water pump 10 and the water inlet assembly 12. The water pump 10 is connected to an external power source and uses the water pump 10 to transport the coolant in the water storage tank 9 to the grinding head 4. The liquid outlet pipe 11 is fixed at the bottom of the crushing box 1 and is connected to the water outlet 7. The liquid outlet pipe 11 is also connected to the water storage tank 9, which facilitates the circulation of coolant in the water storage tank 9 and the grinding roller 4. A protective plate 18 is fixed on the inner wall of the opening at the bottom of the crushing box 1, and the liquid outlet pipe 11 is located inside the protective plate 18, which helps to protect the liquid outlet pipe 11. Water inlet assembly 12 includes: The protective box 13 is a hollow cylindrical structure and is fixed to the top of the crushing box 1. The grinding roller 4 is screwed into the protective box 13 by bearings. The motor 3 is fixed to the protective box 13. The water inlet pipe is connected to the protective box 13 to facilitate the pre-storage of coolant in the water storage tank 9 in the protective box 13. The crushing box 1 is fixed with a protective railing 17, and the protective box 13 is located inside the protective railing 17 to protect the protective box 13 and prevent it from being hit by ore. The liquid guide plate 14, there are several liquid guide plates 14, and they are fixed at equal angles on the annular wall of the grinding head 4. The liquid guide plate 14 is located above the water inlet 6. The grinding head 4 drives the liquid guide plate 14 to rotate synchronously, thereby increasing the stress of the coolant entering the water inlet 6. The liquid inlet ring 15 is an inverted conical structure. The liquid inlet ring 15 is fixed on the inner wall of the protective box 13, and the water inlet 6 is located inside the liquid inlet ring 15, so that the coolant can remain in the protective box 13. Temperature detector 16 is installed on water storage tank 9, and the sensing end of temperature detector 16 is installed on the inner wall of water storage tank 9 to facilitate the detection of the temperature of coolant in protective box 13. When the temperature of coolant is too high, the temperature of coolant in water storage tank 9 is controlled by external temperature controller to ensure the cooling effect on grinding head 4. A dust suction port 19 is provided through the ring wall of the crushing box 1. The dust suction port 19 is connected to an external air pump to reduce dust in the crushing box 1 and avoid dust pollution of the environment.
[0019] When using this utility model, the coal is first transported to the jaw crusher 2 for coarse crushing. The coarsely crushed coal enters the crushing chamber 1, where the grinding roller 4 is rotated by the motor 3 to perform secondary crushing. At the same time, the water pump 10 is started to transport the coolant in the water storage tank 9 to the protective chamber 13. The rotating rod at the top of the grinding roller 4 drives the liquid guide plate 14 to rotate, increasing the stress on the coolant entering the inlet 6 of the protective chamber 13. Through the guiding action of the liquid guide ring 15, the coolant enters the cold water tank 5 to cool the grinding roller 4, preventing the grinding roller 4 from overheating during coal crushing and causing coal oxidation. Finally, the coolant flows back to the water storage tank 9 through the outlet pipe 11, allowing the coolant to circulate between the water storage tank 9 and the grinding roller 4. At the same time, the air pump is turned on to absorb the dust in the crushing chamber 1 through the dust suction port 19, reducing the environmental impact of crushing coal.
[0020] Compared with the prior art, the beneficial effects of this utility model are: The water pump 10 makes the coolant flow in the cooling tank to cool the grinding head 4, so as to prevent the grinding head 4 from being too hot when crushing coal, which would cause the coal to oxidize. The water inlet assembly 12 is set up so that the liquid guide plate 14 can rotate synchronously through the rotating rod on the grinding roller 4, and with the guiding effect of the liquid guide ring 15, the stress of the coolant entering the cooling tank is increased. The protective plate 18 is installed to protect the liquid outlet pipe 11 to a certain extent and prevent coal mine fragments from contacting the liquid outlet pipe 11, which could cause the liquid outlet pipe 11 to fall off. A baffle 20 is set up to restrict the coal ore fragments on the inclined surface of the grinding head 4. With the rotation of the grinding head 4, the coal ore fragments are evenly distributed in the crushing box 1.
[0021] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A raw material crushing device for mechanical synthesis of coal-based thermoelectric additives, comprising a crushing box (1) and a jaw crusher (2); the crushing box (1) is a hollow cylindrical structure, the jaw crusher (2) is set above the crushing box (1) by means of a support rod, and the jaw crusher (2) is connected to the crushing box (1) in a through connection. Its features are, It also includes: The motor (3) is fixed on the top surface of the crushing box (1). The grinding roller (4) is screwed into the crushing box (1) by bearings. The output end of the motor (3) is connected to the top of the grinding roller (4). The motor (3) is connected to an external power source. A cold water tank (5) is provided inside the grinding roller (4). The inlet (6) and outlet (7) of the cold water tank (5) are respectively set on the top and bottom of the grinding roller (4). The water inlet assembly (12) is set on the grinding roller (4). Grinding balls (8), there are several grinding balls (8), and they are fixed at equal intervals on the inclined surface below the grinding roller (4); Water storage tank (9), the water storage tank (9) is fixed on the ring wall of the crushing box (1), the water pump (10) is fixed on the water storage tank (9), and the water pump (10) and the water inlet assembly (12) are connected by a water inlet pipe, and the water pump (10) is connected to an external power source. The liquid outlet pipe (11) is fixed at the bottom of the crushing box (1) and is connected to the water outlet (7) and the water storage tank (9).
2. The raw material pulverizing device for the mechanical synthesis of coal-based thermoelectric additives according to claim 1, characterized in that: The water inlet assembly (12) includes: The protective box (13) is a hollow cylindrical structure and is fixed on the top of the crushing box (1). The grinding roller (4) is screwed into the protective box (13) by bearings. The motor (3) is fixed on the protective box (13) and the water inlet pipe is connected to the protective box (13). Liquid guide plate (14), there are several liquid guide plates (14), and they are fixed at equal angles on the ring wall of the grinding roller (4), and the liquid guide plate (14) is located above the water inlet (6); Liquid inlet ring (15), wherein the liquid inlet ring (15) is an inverted conical structure, the liquid inlet ring (15) is fixed on the inner wall of the protective box (13), and the water inlet (6) is located inside the liquid inlet ring (15); Temperature detector (16) is installed on water storage tank (9), and the sensing end of temperature detector (16) is installed on the inner wall of water storage tank (9).
3. The raw material pulverizing device for the mechanical synthesis of coal-based thermoelectric additives according to claim 2, characterized in that: The crushing box (1) is fixed with a protective railing (17), and the protective box (13) is located inside the protective railing (17).
4. The raw material pulverizing device for the mechanical synthesis of coal-based thermoelectric additives according to claim 1, characterized in that: A protective plate (18) is fixed on the inner wall of the opening at the bottom of the crushing box (1), and the liquid outlet pipe (11) is located inside the protective plate (18).
5. The raw material pulverizing device for the mechanical synthesis of coal-based thermoelectric additives according to claim 1, characterized in that: The pulverizing box (1) has a through-hole (19) on its ring wall, and the dust suction port (19) is connected to an external air pump.
6. The raw material pulverizing device for the mechanical synthesis of coal-based thermoelectric additives according to claim 1, characterized in that: A baffle (20) is fixed at an equal angle on the upper inclined surface of the grinding roller (4), and the baffle (20) is set to abut against the inner wall of the crushing box (1).