Fused salt cooling and recycling device

Abstract

The utility model discloses a molten salt cooling recovery device which comprises a slag cooler, the slag cooler comprises a conveying cylinder, a shaftless screw, a rotation driving piece and a cooling water circulation mechanism, one end of the conveying cylinder is provided with a feeding port, the other end of the conveying cylinder is provided with a discharging port, a cooling water channel is formed in the side wall of the conveying cylinder, and the shaftless screw is arranged in the cooling water channel. The shaftless screw is rotationally arranged in the conveying cylinder, the rotation driving piece is used for driving the shaftless screw to rotate, and the cooling water circulation mechanism is used for continuously introducing cold water into the cooling water channel. The molten salt conveying device has the advantages that molten salt enters the conveying cylinder of the slag cooler through the feeding port, the rotating driving piece drives the shaftless spiral to rotate, so that the molten salt flows in the conveying cylinder, meanwhile, cold water is introduced into the side wall of the conveying cylinder through the water inlet pump, the molten salt in the conveying cylinder is gradually solidified under the cooling effect of the dividing wall, and the molten salt is conveyed into the conveying cylinder. And meanwhile, the molten salt is crushed under the extrusion, cutting and other actions of the shaftless screw, so that the molten salt is in a small block shape when being discharged from the discharge hole, and the recycling of a back-end process is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of molten salt recovery technology, and in particular to a molten salt cooling and recovery device. Background Technology

[0002] A molten salt cooling and recovery device is a device used to recover molten salt. For example, fly ash produced by waste incineration can produce a large amount of molten salt after molten salt heat treatment. The traditional method of molten salt cooling and recovery is to use water or other coolants to quickly cool the molten salt and solidify it into salt blocks. However, the salt blocks produced by this method are usually large in size and easily clump together, which is not conducive to the subsequent process of recycling the salt blocks. Utility Model Content

[0003] In view of this, it is necessary to provide a molten salt cooling and recovery device to solve the technical problem that the salt blocks produced by traditional molten salt cooling and recovery methods are usually large in size and easily clump together, which is not conducive to the subsequent process of recycling the salt blocks.

[0004] To achieve the above objectives, this utility model provides a molten salt cooling and recovery device, including a slag cooler. The slag cooler includes a conveying cylinder, a shaftless screw, a rotating drive component, and a cooling water circulation mechanism. One end of the conveying cylinder has a feed inlet, and the other end has a discharge outlet. Cooling water channels are formed in the side wall of the conveying cylinder. The shaftless screw is rotatably disposed inside the conveying cylinder. The rotating drive component is connected to the shaftless screw and is used to drive the shaftless screw to rotate. The cooling water circulation mechanism is used to continuously supply cold water into the cooling water channels.

[0005] In some embodiments, the molten salt cooling and recovery device further includes a temporary salt storage tank, and the discharge port is connected to the inlet of the temporary salt storage tank.

[0006] In some embodiments, the rotation drive includes a motor and a reducer, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the shaftless helical connection.

[0007] In some embodiments, the cooling water circulation mechanism includes a cooling water tank, an inlet pump, and a radiator. The inlet of the inlet pump is connected to the cooling water tank, the outlet of the inlet pump is connected to the cooling water inlet, the inlet of the radiator is connected to the cooling water outlet, and the outlet of the radiator is connected to the cooling water tank.

[0008] In some embodiments, the cooling water circulation mechanism further includes an outlet pump, the inlet of which is connected to the cooling water outlet, and the outlet of which is connected to the inlet of the radiator.

[0009] In some embodiments, the radiator includes a first water tank, a second water tank, and a plurality of heat dissipation pipes. The first water tank is connected to the outlet of the water pump, the second water tank is connected to the cooling water pool, one end of each heat dissipation pipe is connected to the first water tank, and the other end of each heat dissipation pipe is connected to the second water tank.

[0010] In some embodiments, the second water tank is connected to the cooling water pool via a drain pipe.

[0011] In some embodiments, the cooling water tank includes a tank body and a partition. The partition is vertically disposed within the tank body and divides the tank body into a first tank and a second tank. A connecting hole is provided on the partition. The first tank is connected to the drain pipe, and the second tank is connected to the inlet of the water pump.

[0012] In some embodiments, the cooling water pool further includes a one-way valve disposed within the communication hole. The one-way valve allows only water from the first water pool to enter the second water pool, thereby reducing heat convection between the two water pools.

[0013] In some embodiments, the cooling water pool further includes a mesh cover that covers the communicating hole.

[0014] Compared with the prior art, the beneficial effects of the technical solution proposed in this utility model are as follows: Molten salt enters the conveying cylinder of the cold slag machine through the feed port. The rotating drive unit drives the shaftless screw to rotate, thereby causing the molten salt to flow in the conveying cylinder. At the same time, cold water is introduced into the side wall of the conveying cylinder through the water pump. Under the cooling effect of the partition wall, the molten salt in the conveying cylinder gradually solidifies. Meanwhile, the molten salt is crushed under the squeezing and cutting action of the shaftless screw, so that the molten salt is discharged from the discharge port in small blocks, which is beneficial for the recycling of downstream processes. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of an embodiment of the molten salt cooling and recovery device provided by this utility model;

[0016] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;

[0017] Figure 3 yes Figure 1 A schematic diagram of the cooling water circulation mechanism in the diagram;

[0018] In the diagram: 31-Slag cooler, 311-Conveying cylinder, 3111-Inlet, 3112-Outlet, 3113-Cooling water channel, 3114-Cooling water inlet, 3115-Cooling water outlet, 312-Shaftless screw, 313-Rotation drive component, 3131-Motor, 3132-Reducer, 314-Cooling water circulation mechanism, 3141-Cooling water tank, 31411-Tank body, 31411 1-First water tank, 314112-Second water tank, 31412-Baffle, 314121-Connecting hole, 31413-One-way valve, 31414-Mesh cover, 3142-Inlet pump, 3143-Radiator, 31431-First water tank, 31432-Second water tank, 31433-Radiation pipe, 3144-Outlet pump, 3145-Drainage pipe, 3146-Replenishment pipe, 32-Temporary salt storage bin. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0020] Please refer to Figures 1-3 This utility model provides a molten salt cooling and recovery device, including a slag cooler 31 and a temporary salt storage tank 32. The slag cooler 31 is used to cool the molten salt discharged from the molten salt furnace into solid salt blocks.

[0021] Specifically, the slag cooler 31 includes a conveying cylinder 311, a shaftless screw 312, a rotating drive component 313, and a cooling water circulation mechanism 314. One end of the conveying cylinder 311 has a feed inlet 3111, and the other end has a discharge outlet 3112. The discharge outlet 3112 is connected to the inlet of the temporary salt storage bin 32. A cooling water channel 3113 is formed inside the side wall of the conveying cylinder 311, and one end of the side wall of the conveying cylinder 311 has a cooling water channel 3113 connected to the feed inlet 312. The cooling water inlet 3114 is connected to the cooling water channel 3113, and the other end of the side wall of the conveying cylinder 311 is provided with a cooling water outlet 3115 connected to the cooling water channel 3113. The shaftless screw 312 is rotatably disposed in the conveying cylinder 311. The rotation drive 313 is connected to the shaftless screw 312 and is used to drive the shaftless screw 312 to rotate. The cooling water circulation mechanism 314 is used to continuously supply cold water into the cooling water channel 3113.

[0022] Specifically, the cooling water circulation mechanism 314 includes a cooling water tank 3141, an inlet pump 3142, and a radiator 3143. The inlet of the inlet pump 3142 is connected to the cooling water tank 3141, the outlet of the inlet pump 3142 is connected to the cooling water inlet 3114, the inlet of the radiator 3143 is connected to the cooling water outlet 3115, and the outlet of the radiator 3143 is connected to the cooling water tank 3141.

[0023] In use, molten salt enters the conveying cylinder 311 of the slag cooler through the feed port 3111. The rotating drive 313 drives the shaftless screw 312 to rotate, thereby causing the molten salt to flow in the conveying cylinder 311. At the same time, cold water is introduced into the side wall of the conveying cylinder 311 through the water pump 3142. Under the cooling effect of the partition wall, the molten salt in the conveying cylinder 311 gradually solidifies. At the same time, the molten salt is crushed by the squeezing and cutting action of the shaftless screw 312, so that the molten salt is discharged from the discharge port 3112 in small blocks, which is conducive to the recycling of downstream processes. The block salt discharged from the slag cooler enters the temporary salt storage bin 32.

[0024] Specifically, please refer to Figures 1-3 The rotation drive component 313 includes a motor 3131 and a reducer 3132. The output end of the motor 3131 is connected to the input end of the reducer 3132, and the output end of the reducer 3132 is connected to the shaftless screw 312.

[0025] Preferably, please refer to Figures 1-3 In order to improve the cooling water circulation efficiency, the cooling water circulation mechanism 314 also includes an outlet pump 3144, the inlet of which is connected to the cooling water outlet 3115, and the outlet of which is connected to the inlet of the radiator 3143.

[0026] Preferably, please refer to Figures 1-3 The radiator 3143 includes a first water tank 31431, a second water tank 31432, and a plurality of heat dissipation pipes 31433. The first water tank 31431 is connected to the outlet of the water pump 3144, the second water tank 31432 is connected to the cooling water pool 3141, one end of each heat dissipation pipe 31433 is connected to the first water tank 31431, and the other end of each heat dissipation pipe 31433 is connected to the second water tank 31432.

[0027] Specifically, please refer to Figures 1-3 The second water tank 31432 is connected to the cooling water pool 3141 via a drain pipe 3145.

[0028] Preferably, please refer to Figures 1-3The cooling water tank 3141 includes a tank body 31411 and a partition 31412. The partition 31412 is vertically disposed within the tank body 31411 and divides the tank body 31411 into a first tank 314111 and a second tank 314112. A connecting hole 314121 is provided on the partition 31412. The first tank 314111 is connected to the drain pipe 3145, and the second tank 314112 is connected to the inlet of the water pump 3142. By setting up the first tank 314111 and the second tank 314112, the water discharged from the heat dissipation pipe 31433 first enters the first tank 314111 for natural cooling, and then enters the second tank 314112 to supply water to the water pump 3142, thereby improving the cooling effect.

[0029] Preferably, please refer to Figures 1-3 The cooling water pool 3141 also includes a one-way valve 31413, which is disposed in the connecting hole 314121. The one-way valve 31413 only allows water in the first water pool 314111 to enter the second water pool 314112, thereby reducing heat convection between the two water pools.

[0030] Preferably, please refer to Figures 1-3 The cooling water pool 3141 also includes a mesh cover 31414, which covers the outside of the connecting hole 314121, thereby intercepting impurities.

[0031] Preferably, the cooling water circulation mechanism 314 further includes a water supply pipe 3146, one end of which is connected to a water source, and the other end of which is connected to the cooling water pool 3141. A water supply valve is provided on the water supply pipe 3146.

[0032] The beneficial effects of the molten salt cooling and recovery device provided by this utility model are as follows: Molten salt enters the conveying cylinder 311 of the slag cooler through the feed port 3111. The rotating drive component 313 drives the shaftless screw 312 to rotate, thereby causing the molten salt to flow in the conveying cylinder 311. At the same time, cold water is introduced into the side wall of the conveying cylinder 311 through the water pump 3142. Under the cooling effect of the partition wall, the molten salt in the conveying cylinder 311 gradually solidifies. At the same time, the molten salt is crushed under the squeezing and cutting action of the shaftless screw 312, so that the molten salt is discharged from the discharge port 3112 in small blocks, which is beneficial for downstream recycling.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A molten salt cooling and recovery device, characterized in that: It includes a slag cooler, which includes a conveying cylinder, a shaftless screw, a rotating drive and a cooling water circulation mechanism. A feed port is provided at one end of the conveying cylinder, a discharge port is provided at the other end of the conveying cylinder, a cooling water channel is formed in the side wall of the conveying cylinder, a cooling water inlet connected to the cooling water channel is provided at one end of the side wall of the conveying cylinder, a cooling water outlet connected to the cooling water channel is provided at the other end of the side wall of the conveying cylinder, the shaftless screw is rotatably arranged in the conveying cylinder, the rotating drive is connected to the shaftless screw and is used to drive the shaftless screw to rotate, and the cooling water circulation mechanism is used to continuously introduce cold water into the cooling water channel.

2. The molten salt cooling and recovery device according to claim 1, characterized in that: The molten salt cooling and recovery device also includes a temporary salt storage bin, and the discharge port is connected to the inlet of the temporary salt storage bin.

3. The molten salt cooling and recovery device according to claim 1, characterized in that: The rotary driving member includes a motor and a reducer, the output end of the motor is connected to the input end of the reducer, and the output end of the reducer is connected to the shaftless screw.

4. The molten salt cooling and recovery device according to claim 1, characterized in that: The cooling water circulation mechanism includes a cooling water pool, a water inlet pump and a radiator. The inlet of the water inlet pump is connected to the cooling water pool, the outlet of the water inlet pump is connected to the cooling water inlet, the inlet of the radiator is connected to the cooling water outlet, and the outlet of the radiator is connected to the cooling water pool.

5. The molten salt cooling and recovery device according to claim 4, characterized in that: The cooling water circulation mechanism further includes a water outlet pump, the inlet of the water outlet pump is communicated with the cooling water outlet, and the outlet of the water outlet pump is communicated with the inlet of the radiator.

6. The molten salt cooling and recovery device according to claim 5, characterized in that: The radiator includes a first water tank, a second water tank and a plurality of heat dissipation pipes. The first water tank is connected to the outlet of the water outlet pump, the second water tank is connected to the cooling water pool, one end of each of the heat dissipation pipes is connected to the first water tank, and the other end of each of the heat dissipation pipes is connected to the second water tank.

7. The molten salt cooling and recovery device according to claim 6, characterized in that: The second water tank is communicated with the cooling water pool via a drain pipe.

8. The molten salt cooling and recovery device according to claim 7, characterized in that: The cooling water pool includes a pool body and a partition, wherein the partition is vertically arranged in the pool body and divides the pool body into a first pool and a second pool, and a connecting hole is opened on the partition, the first pool is connected to the drain pipe, and the second pool is connected to the inlet of the water inlet pump.

9. The molten salt cooling and recovery device according to claim 8, characterized in that: The cooling water pool also includes a one-way valve, which is arranged in the connecting hole. The one-way valve only allows water in the first water pool to enter the second water pool, thereby reducing heat convection between the two water pools.

10. The molten salt cooling and recovery device according to claim 8, characterized in that: The cooling water pool also includes a mesh cover, and the mesh cover is arranged outside the connecting hole.

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