Cooling device for high-temperature sodium carbonate powder

Abstract

The utility model discloses a cooling device for high-temperature sodium carbonate powder, which comprises a cooling box, a heat exchange pipeline obliquely penetrating through the cooling box is arranged in the middle section of the cooling box, and high-temperature sodium carbonate passes through the heat exchange pipeline; the multiple heat exchange pipelines are vertically arranged, the lower end of the heat exchange pipeline on the upper layer is connected with the high end of the adjacent heat exchange pipeline on the lower layer through a transfer conveying mechanism, the high end of the heat exchange pipeline on the uppermost layer is connected with a feeding conveying mechanism, and the lower end of the heat exchange pipeline on the lowermost layer is connected with a discharging conveying mechanism. A spraying mechanism is arranged above the heat exchange pipeline on the uppermost layer, water passing holes are formed in the portions, located in the cooling box, of the heat exchange pipelines, and a water storage pool is formed in the bottom of the cooling box. On the premise that the heat exchange efficiency and sufficient cooling are guaranteed, the size of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of soda ash preparation, in particular to a cooling device for high-temperature soda ash powder. Background Art

[0002] In the process of producing soda ash by the ammonia-soda process, soda ash powder is finally obtained through calcination. The produced soda ash needs to be quickly cooled from a high-temperature state for packaging. Currently, the high-temperature soda ash naturally passes between a large number of arranged heat dissipation fins under its own weight, and a coolant is passed inside the heat dissipation fins to achieve the purpose of heat exchange through heat transfer. When a large amount of soda ash is in a stacked state between the heat exchange fins, the heat transfer efficiency is slow. Therefore, the general equipment is relatively tall to provide enough falling distance so that the soda ash can be fully cooled, which poses a great potential safety hazard during equipment maintenance and repair. Summary of the Invention

[0003] Object of the Invention: In order to overcome the deficiencies in the prior art, the utility model provides a cooling device for high-temperature soda ash powder, which reduces the volume of the equipment on the premise of ensuring heat exchange efficiency and sufficient cooling.

[0004] Technical Solution: To achieve the above object, a cooling device for high-temperature soda ash powder of the utility model includes a cooling box. An exchange heat pipe obliquely passes through the cooling box in the middle section, and high-temperature soda ash passes through the exchange heat pipe. A plurality of the exchange heat pipes are arranged vertically. The lower end of the upper exchange heat pipe is connected to the upper end of the adjacent lower exchange heat pipe through a transfer and conveying mechanism. The upper end of the uppermost exchange heat pipe is connected to a feeding and conveying mechanism, and the lower end of the lowermost exchange heat pipe is connected to a discharging and conveying mechanism. A spraying mechanism is arranged above the uppermost exchange heat pipe. The part of the exchange heat pipe located in the cooling box is provided with water passing holes, and the bottom of the cooling box forms a water storage tank.

[0005] Further, the lower side wall of the exchange heat pipe is in contact with the output end of a vibration motor.

[0006] Further, an elastic sealing member is interposed between the pipe wall of the exchange heat pipe and the box wall of the cooling box.

[0007] Further, for the part of the exchange heat pipe located in the cooling box, a plurality of water collecting grooves are concavely formed in the upper side wall thereof, and a plurality of flow dividing grooves are concavely formed in the lower side wall thereof. The water collecting grooves and the flow dividing grooves are both arranged along the length direction of the exchange heat pipe, and the plurality of water collecting grooves and the plurality of flow dividing grooves are vertically corresponding. The water passing holes vertically penetrate the exchange heat pipe, the upper port thereof is located at the bottom of the water collecting groove, and the lower port thereof is located at the bottom of the flow dividing groove.

[0008] Further, a heat dissipation fan is provided at the top of the cooling box, and air inlets are provided on the box wall of the cooling box corresponding to the lower sides of the high ends of the plurality of heat exchange pipes.

[0009] Further, the spraying mechanism includes a water distribution pipe. A plurality of spraying ports are evenly arranged on the lower side wall of the water distribution pipe. One end of the water distribution pipe is closed, and the other end is open and extends out of the cooling box to form a water inlet. A drain port is provided at the bottom of the reservoir, and the drain port is connected to the water inlet through a circulating water pump.

[0010] Beneficial effects: In a cooling device for high-temperature soda ash powder of the present utility model, by passing high-temperature soda ash through a heat exchange channel arranged with a small-angle inclination to indirectly exchange heat with the sprayed cooling water, sufficient heat exchange time and area are provided, ensuring the efficiency and effect of heat exchange, and effectively reducing the volume of the device, especially in the height direction, reducing the safety risk. By controlling the flow of soda ash in the heat exchange pipe through vibration, the flow rate of the material flow is controllable, and the accumulation of soda ash is reduced, and it is evenly laid in the pipe, which helps to dissipate heat and further improves the heat dissipation efficiency. Description of the Drawings

[0011] Figure 1 is a schematic cross-sectional view of the overall structure of an embodiment of the present utility model;

[0012] Figure 2 is a partial schematic cross-sectional view of the cross-section of the heat exchange pipe of the present utility model;

[0013] Figure 3 is a schematic cross-sectional view of the joint of the heat exchange pipe and the cooling box of the present utility model. Specific Embodiments

[0014] The present utility model will be further described below with reference to the drawings.

[0015] As shown in the attached Figures 1-3 The described cooling device for high-temperature soda ash powder includes a cooling box 1. A heat exchange pipe 2 obliquely passing through itself is provided in the middle section of the cooling box 1. High-temperature soda ash passes through the heat exchange pipe 2. The plurality of heat exchange pipes 2 are arranged vertically. The low end of the upper heat exchange pipe 2 is connected to the high end of the adjacent lower heat exchange pipe 2 through a transfer and conveying mechanism 4. The high end of the uppermost heat exchange pipe 2 is connected to a feeding and conveying mechanism 3, and the low end of the lowermost heat exchange pipe 2 is connected to a discharging and conveying mechanism 5. A spraying mechanism 6 is provided above the uppermost heat exchange pipe 2. Water passing holes 21 are provided in the part of the heat exchange pipe 2 located in the cooling box 1. The bottom of the cooling box 1 forms a reservoir 7.

[0016] In this solution, high-temperature soda ash continuously passes through a plurality of inclined heat exchange pipes, thereby passing through the cooling box multiple times. Figure 1This is only one embodiment with two heat exchange pipes; inside the cooling box, cooling water is sprayed to exchange heat with the pipe wall of the heat exchange pipe to achieve the purpose of cooling soda ash. When the cooling water passes through the water holes, it fully exchanges heat with the internal soda ash powder flow, improving the heat exchange efficiency. The inclined pipe structure enables the soda ash to be laid flat on the bottom side of the pipe and slide down at an appropriate speed along the inclined direction of the pipe, providing sufficient time for heat exchange with the cooling water, avoiding the accumulation of soda ash, and helping to dissipate heat. The staggered and inclined heat exchange pipes are equivalent to folding the falling stroke of the soda ash, greatly reducing the volume of the equipment.

[0017] The lower pipe wall 22 of the heat exchange pipe 2 contacts the output end of the vibration motor 8. Regular small-amplitude vibrations are generated in the heat exchange pipe through shock, and the heat exchange pipe is set to be inclined at a small angle. The vibration provides the power for the soda ash to be conveyed along the pipe. The vibration can make the soda ash powder more evenly laid inside the pipe, enabling the soda ash material flow to have a sufficient contact area with the bottom pipe wall, achieving efficient heat exchange. At the same time, there is enough natural heat dissipation space above. During the vibration process, the soda ash powder will be shocked and separated from the pipe wall, dispersing in the internal space of the pipe, further facilitating heat dissipation. And by changing the vibration frequency, the flow rate of the soda ash material flow in the pipe can be adjusted. By detecting the temperature of the discharge port, on the premise of ensuring that the final discharge temperature meets the standard, the flow rate of the material flow can be appropriately increased to improve production efficiency. And the small-angle setting of the heat exchange pipe is beneficial to further reducing the volume of the equipment.

[0018] An elastic seal 11 is provided between the pipe wall of the heat exchange pipe 2 and the box wall of the cooling box 1. It can effectively play a role in shock absorption and isolation, avoiding frequent collisions between the vibrating heat exchange pipe and the cooling box directly, effectively extending the service life of the device. At the same time, it also plays a sealing role, preventing the cooling water from flowing along the pipe wall of the heat exchange pipe and flowing out from the gap cooperating with the cooling box, thereby reducing water loss and consumption and lowering water usage.

[0019] The part of the heat exchange pipe 2 located in the cooling box 1 has a plurality of water collecting grooves 24 formed in the concave on the upper tube wall 23, and a plurality of diverter grooves 25 formed in the concave on the lower tube wall 22. The water collecting grooves 24 and the diverter grooves 25 are arranged along the length direction of the heat exchange pipe 2, and the plurality of water collecting grooves 24 correspond to the plurality of diverter grooves 25 up and down. The water holes 21 vertically penetrate the heat exchange pipe 2, and the upper end thereof is located at the bottom of the water collecting groove 24, and the lower end thereof is located at the bottom of the diverter groove 25. The water sprayed on the top of the heat exchange pipe converges from the high place to the low place, and a water flow is formed in the water collecting groove. When flowing through each water hole, part of the water flows downward along the hole wall, flows out from the lower end of the water hole, and flows to the convex surfaces on both sides under the guiding effect of the diverter groove wall, thereby forming a differential water flow in the same direction with the material flow across the lower tube wall of the heat exchange pipe, and the water flow velocity is greater than the material flow, which is conducive to quickly taking away heat.

[0020] A heat dissipation fan 9 is provided at the top of the cooling box 1, and air inlets 10 are provided on the wall of the cooling box 1 corresponding to the lower ends of the plurality of heat exchange pipes 2. When the heat of soda ash exceeds the natural heat dissipation capacity of the device, the heat dissipation fan can be triggered by temperature control to draw external air into the cooling box from the air inlet, and the incoming cold air is just at the bottom of the heat exchange pipe, effectively enhancing the heat dissipation, and then passes through the heat exchange pipe upward from the bottom port of the water hole, and finally discharges the heat from the top of the cooling box.

[0021] The spray mechanism 6 includes a water distribution pipe, and a plurality of spray ports are evenly distributed on the lower wall of the water distribution pipe. One end of the water distribution pipe is closed, and the other end is open and extends out of the cooling box 1 to form a water inlet 61. A drain port 71 is provided at the bottom of the water reservoir 7, and the drain port 71 is connected to the water inlet 61 through a circulating water pump. The recycling of cooling water is achieved, and the water consumption is reduced.

[0022] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cooling device for high-temperature soda ash powder, characterized in that: It includes a cooling box (1), in the middle section of the cooling box (1), there is a heat exchange pipe (2) obliquely passing through itself, and high-temperature soda ash passes through the heat exchange pipe (2); a plurality of the heat exchange pipes (2) are arranged vertically, the lower end of the upper-layer heat exchange pipe (2) is connected to the upper end of the adjacent lower-layer heat exchange pipe (2) through a transfer and conveying mechanism (4), the upper end of the uppermost-layer heat exchange pipe (2) is connected to a feeding and conveying mechanism (3), and the lower end of the lowermost-layer heat exchange pipe (2) is connected to a discharging and conveying mechanism (5); above the uppermost-layer heat exchange pipe (2), there is a spraying mechanism (6), the part of the heat exchange pipe (2) located in the cooling box (1) is provided with water passing holes (21), and the bottom of the cooling box (1) forms a water storage tank (7).

2. The cooling device for high-temperature soda ash powder according to claim 1, wherein: The lower side wall (22) of the heat exchange pipe (2) is in contact with the output end of a vibration motor (8).

3. The cooling device for high-temperature soda ash powder according to claim 2, wherein: An elastic seal (11) is provided between the pipe wall of the heat exchange pipe (2) and the box wall of the cooling box (1).

4. A cooling device for high-temperature soda ash powder according to claim 3, characterized in that: For the part of the heat exchange pipe (2) located in the cooling box (1), a plurality of water collecting grooves (24) are concavely formed in its upper side wall (23), and a plurality of diversion grooves (25) are concavely formed in its lower side wall (22). The water collecting grooves (24) and the diversion grooves (25) are both arranged along the length direction of the heat exchange pipe (2), and a plurality of the water collecting grooves (24) and a plurality of the diversion grooves (25) are vertically corresponding; the water passing holes (21) vertically penetrate through the heat exchange pipe (2), the upper port thereof is located at the bottom of the water collecting groove (24), and the lower port thereof is located at the bottom of the diversion groove (25).

5. The cooling device for high-temperature soda ash powder according to claim 4, characterized in that: A heat dissipation fan (9) is provided at the top end of the cooling box (1), and air inlets (10) are provided on the box wall of the cooling box (1) corresponding to the lower sides of the upper ends of a plurality of the heat exchange pipes (2).

6. The cooling device for high-temperature soda ash powder according to claim 5, characterized in that: The spraying mechanism (6) includes a water distribution pipe, a plurality of spraying ports are uniformly arranged on the lower side wall of the water distribution pipe, one end of the water distribution pipe is closed, and the other end is open and extends out of the cooling box (1) to form a water inlet (61); a drain port (71) is provided at the bottom of the water storage tank (7), and the drain port (71) and the water inlet (61) are connected through a circulating water pump.

Images