Circulating cooling device for industrially manufacturing nickel oxide

Abstract

A circulating cooling device for industrial manufacturing of nickel oxide relates to the technical field of nickel oxide production equipment and comprises an equipment body, a cooling cavity is formed in the equipment body, a heat exchange box is arranged below the cooling cavity, and a cold guide plate for sealing the bottom of the cooling cavity is mounted at the top end of the heat exchange box. An air inlet is formed in one side of the heat exchange box, a circulating inlet pipe is arranged on one side of the air inlet, the other end of the circulating inlet pipe is located at the upper end of one side of the cooling cavity, a negative pressure fan is installed outside the circulating inlet pipe, an air outlet is formed in the other side of the heat exchange box, and a circulating outlet pipe is arranged on one side of the air outlet. According to the scheme, the problems that in the nickel oxide manufacturing process, the water cooling circulation speed is low, temperature control is not stable, and the occupied area of equipment is large are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of nickel oxide production equipment, specifically a circulating cooling device for industrial manufacturing of nickel oxide. Background Technology

[0002] Nickel oxide is typically manufactured through the thermal decomposition or oxidation of nickel salts, reactions often carried out at high temperatures. After the reaction, the resulting nickel oxide remains at a high temperature. If not cooled promptly, this can lead to changes in its properties, such as alterations in crystal structure or uneven particle size distribution, thus affecting product quality. Furthermore, the high temperature of the nickel oxide can damage subsequent processing equipment, reducing its lifespan.

[0003] For example, the Chinese authorized patent CN216953759U, entitled "A Nickel Oxide Cooling System", includes a calcining furnace, a screw conveyor, and a silo. The calcining furnace is connected to a screw conveyor at one end, a motor is installed at one end of the screw conveyor to control the conveying operation, and the other end of the screw conveyor is connected to a silo. The screw conveyor and the calcining furnace are equipped with air-cooling devices, and the silo is equipped with a water-cooling device.

[0004] While the aforementioned existing technologies utilize water-cooled refrigeration cycles to achieve a certain cooling effect in the industrial manufacturing of nickel oxide, the water-cooling systems are bulky, requiring complex water circulation pipes and storage facilities. Furthermore, the cooling efficiency is limited by the specific heat capacity of water and the circulation speed, making it difficult to quickly cool nickel oxide to the ideal temperature. Additionally, water is prone to scaling, which affects cooling performance over long-term use, necessitating frequent maintenance and cleaning, resulting in high costs. Therefore, these technologies do not meet current requirements. To address this, we propose a circulating cooling device for the industrial manufacturing of nickel oxide. Utility Model Content

[0005] The purpose of this invention is to provide a circulating cooling device for the industrial manufacturing of nickel oxide, in order to solve the problems of slow water cooling circulation speed, unstable temperature control, and large equipment footprint in the nickel oxide manufacturing process mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a circulating cooling device for industrial manufacturing of nickel oxide, comprising a main body of the device, a cooling chamber inside the main body of the device, a heat exchange box below the cooling chamber, a cooling guide plate sealing the bottom of the cooling chamber installed at the top of the heat exchange box, an air inlet on one side of the heat exchange box, a circulating inlet pipe on one side of the air inlet, and the other end of the circulating inlet pipe located at the upper end of one side of the cooling chamber, a negative pressure fan installed outside the circulating inlet pipe, an air outlet on the other side of the heat exchange box, a circulating outlet pipe on one side of the air outlet, and the other end of the circulating outlet pipe located at the lower end of the other side of the cooling chamber, and a medium cooling mechanism at the bottom of the heat exchange box.

[0007] Preferably, a heat dissipation cavity is provided at the bottom of the main body of the device, and the medium cooling mechanism consists of an evaporator, a condenser, a compressor and an expansion valve, wherein the evaporator is installed at the bottom of the heat exchange box, and the condenser, compressor and expansion valve are installed inside the heat dissipation cavity.

[0008] Preferably, the heat exchange box is provided with a plurality of longitudinally distributed heat exchange baffles, the upper and lower end faces of the heat exchange baffles are respectively sealed to the heat exchange box and the cold conduction plate, and the adjacent heat exchange baffles are staggered.

[0009] Preferably, the upper surface of the heat exchange box bottom plate is inclined, a drainage groove is provided at the front end of the heat exchange box, a water collection box is installed in the drainage groove, a condensate drain pipe extending to the outside of the equipment body is provided at one end of the water collection box, and a valve is installed on the outside of the condensate drain pipe.

[0010] Preferably, the upper end of the main body of the equipment is provided with a top cover, and the top cover is snapped into the main body of the equipment, and handles are provided on both sides of the upper surface of the top cover.

[0011] Preferably, a tray is provided at the lower end of the cooling cavity.

[0012] Preferably, a heat dissipation grille is provided on one side of the heat dissipation cavity, and the heat dissipation grille is fixed to the main body of the equipment by screws.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model adopts an internal circulation air-cooling structure. By turning on the negative pressure fan, the air inside the cooling chamber is transported from the circulation inlet pipe to the heat exchange box, where heat exchange occurs, reducing the temperature of the air. The cooled air then re-enters the cooling chamber from the circulation outlet pipe, forming a cooling circulation within the cooling chamber in a closed environment. Furthermore, the flow rate of the circulating air duct is set according to the type of nickel oxide being cooled, preventing excessive speed from blowing up the nickel oxide and causing internal turbulence. This internal circulation air-cooling structure avoids the drawbacks of traditional water-cooling systems, such as easy scaling and the need for large amounts of water. The negative pressure fan enables air circulation between the cooling chamber and the heat exchange box. This closed-environment cooling circulation is not only highly efficient but also reduces interference from external impurities, ensuring a clean environment for nickel oxide production.

[0015] 2. This utility model installs a refrigeration mechanism at the bottom of the heat exchange box. The refrigeration mechanism consists of an evaporator, a condenser, an expansion valve, and a compressor. The compressor compresses the low-temperature, low-pressure gaseous refrigerant in the evaporator into a high-temperature, high-pressure gas, which is then sent to the condenser to release heat and condense into a high-pressure liquid refrigerant. The liquid refrigerant then passes through the expansion valve for throttling and pressure reduction before entering the evaporator. In the evaporator, it absorbs heat from the air inside the heat exchange box, thus lowering the air temperature inside the heat exchange box. This allows for a rapid and stable reduction in the air temperature inside the heat exchange box, thereby efficiently cooling the nickel oxide in the cooling chamber. Compared with traditional cooling methods, this significantly shortens the cooling time of nickel oxide and improves production efficiency.

[0016] 3. This utility model has multiple staggered heat exchange baffles inside the heat exchange box, thereby extending the air flow time inside the heat exchange box and improving the heat exchange efficiency between the heat exchange baffles and the air. Moreover, the upper surface of the bottom plate of the heat exchange box is inclined. During the heat exchange process, air condenses, and the water droplets condensed on the heat exchange baffles fall onto the bottom plate of the heat exchange box with gravity. Then, they quickly flow down the inclined surface from the drain groove into the water collection box. The operator can discharge the condensate by opening the valve periodically. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present utility model;

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 For the present utility model Figure 2 AA section diagram;

[0020] Figure 4 This is a perspective view of the heat exchange box of this utility model.

[0021] In the diagram: 1. Main body of the equipment; 2. Top cover; 3. Handle; 4. Heat dissipation grille; 5. Condensate drain pipe; 6. Valve; 7. Cooling chamber; 8. Tray; 9. Heat exchange box; 10. Cooling plate; 11. Circulation outlet pipe; 12. Circulation inlet pipe; 13. Evaporator; 14. Heat dissipation chamber; 15. Condenser; 16. Compressor; 17. Heat exchange baffle; 18. Air inlet; 19. Air outlet; 20. Drainage trough; 21. Water collection box; 22. Negative pressure fan. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 This embodiment provides a circulating cooling device for industrial manufacturing of nickel oxide, including a main body 1. The main body 1 has a cooling chamber 7 inside, and a heat exchange box 9 is arranged below the cooling chamber 7. A cooling guide plate 10 is installed on the top of the heat exchange box 9 to seal the bottom of the cooling chamber 7. An air inlet 18 is arranged on one side of the heat exchange box 9, and a circulating inlet pipe 12 is arranged on one side of the air inlet 18. The other end of the circulating inlet pipe 12 is located at the upper end of one side of the cooling chamber 7. A negative pressure fan 22 is installed outside the circulating inlet pipe 12. An air outlet 19 is arranged on the other side of the heat exchange box 9, and a circulating outlet pipe 11 is arranged on one side of the air outlet 19. The other end of the circulating outlet pipe 11 is located below the other side of the cooling chamber 7. A medium cooling mechanism is arranged at the bottom of the heat exchange box 9. After the negative pressure fan 22 is started, a negative pressure is generated in the circulating inlet pipe 12, which draws the high-temperature air in the cooling chamber 7 into the circulating inlet pipe 12. Then the air enters the heat exchange box 9 through the air inlet 18. Inside the heat exchange box 9, the air exchanges heat with the low-temperature cooling plate 10 and other components after the cooling mechanism is activated, and then the air enters the circulation pipe 11 through the air outlet 19 and finally returns to the cooling chamber 7 to complete the air circulation. This air circulation cooling method can continuously remove the heat emitted by the nickel oxide in the cooling chamber 7, keep the temperature in the cooling chamber 7 stable, and compared with the traditional cooling method, this circulation system responds quickly and can quickly adjust the temperature in the cooling chamber 7, thereby improving the cooling efficiency.

[0024] Please see Figure 1 and Figure 3The lower part of the main body 1 of the equipment has a heat dissipation cavity 14. The medium cooling mechanism consists of an evaporator 13, a condenser 15, a compressor 16, and an expansion valve. The evaporator 13 is installed at the bottom of the heat exchange box 9, while the condenser 15, compressor 16, and expansion valve are installed inside the heat dissipation cavity 14. A heat dissipation grille 4 is provided on one side of the heat dissipation cavity 14 and is fixed to the main body 1 of the equipment with screws. The compressor 16 compresses the low-temperature, low-pressure gaseous refrigerant in the evaporator 13 into a high-temperature, high-pressure gas and delivers it to the condenser 15. In the condenser 15, the high-temperature, high-pressure refrigerant exchanges heat with the air in the heat dissipation cavity 14, releasing heat and condensing into a high-pressure liquid refrigerant. The liquid refrigerant is throttled and depressurized by the expansion valve, becoming a low-temperature, low-pressure mixture of liquid and gaseous refrigerant that enters the evaporator 13. In the evaporator 13, it absorbs heat from the air in the heat exchange box 9 and evaporates into a low-temperature, low-pressure gaseous refrigerant, completing the refrigeration cycle. The heat dissipation chamber 14 exchanges heat with the outside environment through the heat dissipation grille 4, dissipating the heat emitted by the condenser 15 to the main body 1 of the equipment. The mature compression refrigeration cycle ensures efficient cooling, which can stably and quickly reduce the air temperature inside the heat exchange box 9. The design of the heat dissipation chamber 14 and the heat dissipation grille 4 effectively dissipates heat, ensures the stable operation of the refrigeration mechanism, and at the same time improves energy utilization efficiency and reduces energy consumption.

[0025] Please see Figure 3 and Figure 4 The heat exchange box 9 is equipped with multiple longitudinally distributed heat exchange baffles 17. The upper and lower ends of the heat exchange baffles 17 are sealed to the heat exchange box 9 and the cold conduction plate 10, respectively. The adjacent heat exchange baffles 17 are staggered. The air entering the heat exchange box 9 flows between the multiple staggered heat exchange baffles 17. The tortuous path prolongs the residence time of the air in the heat exchange box 9, allowing the air to fully contact the heat exchange baffles 17 and the cold conduction plate 10 for heat exchange. This greatly improves the heat exchange efficiency between the air and the heat exchange baffles 17 and the cold conduction plate 10, allowing the air to be cooled more fully. This improves the cooling effect of nickel oxide in the cooling chamber 7 and helps to improve the stability of nickel oxide product quality.

[0026] Please see Figure 4The upper surface of the bottom plate of the heat exchange box 9 is inclined. A drainage groove 20 is provided at the front end of the heat exchange box 9, and a water collection box 21 is installed in the drainage groove 20. A condensate drain pipe 5 extending to the outside of the main body 1 is provided at one end of the water collection box 21. A valve 6 is installed on the outside of the condensate drain pipe 5. When the air inside the heat exchange box 9 cools down and condensation occurs, water droplets condense on the heat exchange baffle 17 and the inner wall of the heat exchange box 9. Under the action of gravity, the water droplets slide down to the bottom plate of the heat exchange box 9, flow down the inclined bottom plate into the drainage groove 20, and then into the water collection box 21. The operator opens the valve 6 periodically, and the condensate in the water collection box 21 is discharged from the main body 1 of the equipment through the condensate drain pipe 5. This effectively avoids the accumulation of condensate in the heat exchange box 9, prevents the condensate from negatively affecting the heat exchange efficiency, and prevents water accumulation from corroding the internal structure of the equipment, extending the service life of the equipment. Moreover, the drainage operation is simple and convenient, reducing maintenance costs.

[0027] Please see Figure 1 The equipment body 1 has a top cover 2 at its upper end, which is snapped into the equipment body 1. Handles 3 are located on both sides of the upper surface of the top cover 2. The top cover 2, connected to the equipment body 1 via a snap-fit ​​mechanism, seals the opening at the top of the equipment body 1, reducing heat loss from the cooling chamber 7 to the outside. The handles 3 facilitate the handling or movement of the top cover 2 and the entire equipment body 1 by workers, ensuring a relatively closed environment within the cooling chamber 7 and helping to maintain the stability of the cooling effect. The design of the handles 3 makes equipment operation more convenient and improves work efficiency.

[0028] Please see Figure 3 The lower end of the cooling chamber 7 is provided with a tray 8, which is used to place the nickel oxide to be cooled, bear the weight of the nickel oxide, and provide a stable placement platform for the nickel oxide, so that the cooling process can be carried out in a more orderly manner, facilitate the centralized placement and management of nickel oxide, and better ensure the fixed position of nickel oxide during the cooling process, which is conducive to improving the uniformity and stability of cooling, thereby ensuring the quality of nickel oxide products.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circulating cooling device for industrial manufacturing of nickel oxide, comprising a main body (1), characterized in that: The main body (1) of the equipment is provided with a cooling chamber (7) inside. A heat exchange box (9) is provided below the cooling chamber (7). A cooling plate (10) is installed at the top of the heat exchange box (9) to seal the bottom of the cooling chamber (7). An air inlet (18) is provided on one side of the heat exchange box (9). A circulation inlet pipe (12) is provided on one side of the air inlet (18), and the other end of the circulation inlet pipe (12) is located at the upper end of one side of the cooling chamber (7). A negative pressure fan (22) is installed outside the circulation inlet pipe (12). An air outlet (19) is provided on the other side of the heat exchange box (9). A circulation outlet pipe (11) is provided on one side of the air outlet (19), and the other end of the circulation outlet pipe (11) is located below the other side of the cooling chamber (7). A medium cooling mechanism is provided at the bottom of the heat exchange box (9).

2. A circulating cooling device for industrial nickel oxide manufacturing according to claim 1, characterized in that: The lower part of the main body (1) of the equipment is provided with a heat dissipation cavity (14). The medium cooling mechanism consists of an evaporator (13), a condenser (15), a compressor (16) and an expansion valve. The evaporator (13) is installed at the bottom of the heat exchange box (9), and the condenser (15), the compressor (16) and the expansion valve are installed inside the heat dissipation cavity (14).

3. A circulating cooling device for industrial nickel oxide manufacturing according to claim 1, characterized in that: The heat exchange box (9) is provided with a plurality of longitudinally distributed heat exchange baffles (17). The upper and lower end faces of the heat exchange baffles (17) are respectively sealed to the heat exchange box (9) and the cold conduction plate (10), and the adjacent heat exchange baffles (17) are staggered.

4. A circulating cooling device for industrial nickel oxide manufacturing according to claim 1, characterized in that: The upper surface of the bottom plate of the heat exchange box (9) is inclined. A drain trough (20) is provided at the front end of the heat exchange box (9). A water collection box (21) is installed in the drain trough (20). A condensate drain pipe (5) extending to the outside of the main body (1) is provided at one end of the water collection box (21). A valve (6) is installed on the outside of the condensate drain pipe (5).

5. A circulating cooling device for industrial nickel oxide manufacturing according to claim 1, characterized in that: The upper end of the main body (1) of the equipment is provided with a top cover (2), and the top cover (2) is snapped into the main body (1). Handles (3) are provided on both sides of the upper surface of the top cover (2).

6. A circulating cooling device for industrial nickel oxide manufacturing according to claim 1, characterized in that: A tray (8) is provided at the lower end of the cooling chamber (7).

7. A circulating cooling device for industrial nickel oxide manufacturing according to claim 2, characterized in that: A heat dissipation grille (4) is provided on one side of the heat dissipation cavity (14), and the heat dissipation grille (4) is fixed to the main body of the equipment (1) by screws.

Images