Potassium salt decarbonization device

Abstract

The potassium salt decarbonization device comprises a rack, a temporary storage tank and a negative pressure pipe are arranged on the rack, the inlet end of the negative pressure pipe is connected with an injection pipe, and the injection pipe is used for inputting high-speed airflow into the negative pressure pipe so as to form material pumping negative pressure in the negative pressure pipe; the negative pressure pipe is further provided with a material pumping pipe, the inlet end of the material pumping pipe is communicated with the temporary storage tank, and the top of the temporary storage tank is further provided with a ventilation pipe used for being communicated with the atmosphere. The outlet end of the negative pressure pipe is further provided with a decarburization pipe, the decarburization pipe is provided with a heating module, the outlet end of the decarburization pipe is provided with a settler, the rack is further provided with a controller, and the controller is electrically connected with the heating module; adsorption of sylvite is achieved through airflow flowing at a high speed, the conveying efficiency of the sylvite is improved, meanwhile, the sylvite can be prevented from caking, it can be guaranteed that carbon powder in a dispersed state can be fully combusted at a high temperature in cooperation with subsequent heating, and therefore the combustion efficiency of the carbon powder is effectively improved, and the carbon removal effect is improved.

Description

Technical Field

[0001] This application relates to the field of chemical equipment technology, specifically to a potassium salt decarbonization device. Background Technology

[0002] With the development of the new energy field, carbonated olefins are an important raw material for lithium-ion battery electrolytes. Every year, they will produce more than 200,000 tons of potassium chloride as a by-product. This potassium chloride contains organic impurities, coking products, heavy metals, etc., and cannot be reused directly. It needs to be processed through a series of processes such as decarbonization before it can be used. However, the decarbonization method used in the existing technology has a poor decarbonization effect, resulting in some residues in the potassium salt. Utility Model Content

[0003] The main objective of this application is to provide a potassium salt decarbonization device that aims to overcome the shortcomings of poor decarbonization performance in the prior art.

[0004] This application achieves the above objectives through the following technical solutions:

[0005] A potassium salt decarbonization device, comprising a frame;

[0006] A temporary storage tank, which is mounted on the frame;

[0007] A negative pressure pipe is provided on the frame. The inlet end of the negative pressure pipe is connected to a jet pipe. The jet pipe is used to input high-speed airflow into the negative pressure pipe to form a material suction negative pressure in the negative pressure pipe.

[0008] A material extraction pipe, one end of which is connected to the negative pressure pipe and the other end of which is connected to the temporary storage tank; the top of the temporary storage tank is also provided with a vent pipe for connecting to the atmosphere.

[0009] A decarbonization tube, which is connected to the negative pressure tube, and a heating module is provided on the decarbonization tube;

[0010] A settling device, which is connected to the decarbonization pipe;

[0011] A controller, which is electrically connected to the heating module.

[0012] Optionally, the negative pressure pipe has a conical structure, with the large end being the air inlet and the small end being the air outlet. The inlet end of the jet pipe is connected to an external high-pressure air source, and its outlet end is inserted into the negative pressure pipe and faces the air outlet.

[0013] Optionally, the material extraction pipe has an overall U-shaped structure, with one end inserted into the negative pressure pipe and the other end connected to the vent pipe; along the axis of the material extraction pipe, material extraction holes are provided on the outer circumferential surface of the material extraction pipe, and each material extraction hole is covered by the material in the temporary storage box.

[0014] Optionally, the material extraction pipe is also provided with several adjusting sleeves, each of which is coaxial with each of the material extraction holes, and some of the adjusting sleeves are threadedly connected to a sealing block.

[0015] Optionally, the heating module includes an induction coil wound around the outer surface of the decarburization tube.

[0016] Optionally, the heating module further includes several metal heating rods, each of which is arranged in parallel inside the decarbonization tube, with the axis of each metal heating rod parallel to the axis of the decarbonization tube; support frames are also provided at both ends of the decarbonization tube, and each metal heating rod is connected to each of the support frames respectively.

[0017] Optionally, a temperature sensor is also installed inside the decarbonization tube. The controller includes an industrial computer and a PLC that are electrically connected. The temperature sensor is electrically connected to the PLC. The induction coil is connected to external AC power through a medium-frequency power supply. The medium-frequency power supply is electrically connected to the PLC.

[0018] Optionally, the settling device includes an interconnected box and a sealing cover. Along the length of the box, one end of the box is provided with a feed pipe connected to the decarbonization pipe, and the other end is provided with an exhaust pipe. Several layers of separation mesh are provided between the feed pipe and the exhaust pipe.

[0019] Optionally, along the length of the box, a plurality of insertion slots are sequentially arranged inside the box, and a sealing block is provided on the edge of the separation net, with each sealing block inserted into the insertion slot; the sealing cover is tightly fitted with the sealing block on the top of the separation net.

[0020] Optionally, along the length of the box body, a plurality of discharge pipes are provided at the bottom of the box body, and a conical material collection hood is also provided at the bottom of the box body, with each material collection hood connected to each of the discharge pipes.

[0021] Compared with the prior art, this application has the following beneficial effects:

[0022] This application includes a frame, on which a temporary storage tank and a negative pressure pipe are mounted. The inlet end of the negative pressure pipe is connected to a jet pipe, which is used to input a high-speed airflow into the negative pressure pipe to create a suction negative pressure within the pipe. A suction pipe is also mounted on the negative pressure pipe, with its inlet end connected to the temporary storage tank. A vent pipe for connecting to the atmosphere is also mounted on the top of the temporary storage tank. A decarbonization pipe is also mounted at the outlet end of the negative pressure pipe, and a heating module is mounted on the decarbonization pipe. A settling device is mounted at the outlet end of the decarbonization pipe. A controller is also mounted on the frame and is electrically connected to the heating module.

[0023] In operation, an external high-pressure air source enters the negative pressure pipe through a jet pipe. Based on the Venturi effect, when the high-speed airflow passes through, it creates a negative pressure for material extraction within the negative pressure pipe. This allows the material in the temporary storage tank to be extracted through the extraction pipe and enter the decarbonization pipe through the outlet of the negative pressure pipe. Simultaneously, the vent pipe ensures stable air pressure within the temporary storage tank. Inside the decarbonization pipe, a heating device raises the temperature to 300-500°C. As the mixture of airflow and material passes through the decarbonization pipe, the carbon powder is burned at high temperature and ultimately converted into carbon monoxide or carbon dioxide. Finally, the burned material enters the settling tank. After gas-solid separation, the gas is directly discharged into the atmosphere, and the precipitated dust consists only of decarbonized potassium salts.

[0024] Compared with the prior art, this application uses high-speed airflow to adsorb potassium salts, which not only improves the potassium salt transport efficiency but also prevents potassium salt from clumping. Combined with subsequent heating, it can ensure that the dispersed carbon powder can be fully burned at high temperature, thereby effectively improving the carbon powder combustion efficiency and carbon removal effect.

[0025] Secondly, the airflow can prevent potassium salts from caking during calcination by its own impact force during material transport, which is beneficial for subsequent dissolution.

[0026] Finally, this application can reduce the toner content in a single process, which not only has high carbon removal efficiency, but also reduces equipment energy consumption and operating costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a potassium salt decarbonization device provided in Embodiment 1 of this application;

[0028] Figure 2 An exploded view of a potassium salt decarbonization device provided in Embodiment 1 of this application;

[0029] Figure 3 A cross-sectional view of a potassium salt decarbonization device provided in Embodiment 1 of this application;

[0030] Figure 4 This is a cross-sectional view of the negative pressure pipe;

[0031] Figure 5 This is a schematic diagram of the decarbonization tube.

[0032] Attached reference numerals: 1-Frame, 2-Temporary storage tank, 3-Negative pressure pipe, 4-Injection pipe, 5-Suction pipe, 6-Vent pipe, 7-Decarbonization pipe, 8-Settler, 9-Controller, 10-Suction hole, 11-Adjusting sleeve, 12-Sealing block, 13-Induction coil, 14-Heating rod, 15-Support frame, 16-Temperature sensor, 17-Medium frequency power supply, 801-Box body, 802-Sealing cover, 803-Feed pipe, 804-Exhaust pipe, 805-Separation net, 806-Interlocking groove, 807-Sealing block, 808-Discharge pipe, 809-Collection hood.

[0033] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0035] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] Implementation Method 1

[0039] Reference Figures 1 to 5 This embodiment, as an optional embodiment of this application, discloses a potassium salt decarbonization device, including a frame 1, on which a temporary storage tank 2 is provided; the top of the temporary storage tank 2 is provided with a feeding port and a vent pipe 6;

[0040] The frame 1 is also equipped with a negative pressure pipe 3. The negative pressure pipe 3 has a conical structure, with the large end being the air inlet and the small end being the air outlet. A jet pipe 4 is also installed inside the negative pressure pipe 3. The inlet end of the jet pipe 4 is connected to an external high-pressure air source, and its outlet end is located inside the negative pressure pipe 3, with the outlet end of the jet pipe 4 facing the outlet end of the negative pressure pipe 3.

[0041] A material extraction pipe 5 is also provided on the negative pressure pipe 3. The inlet end of the material extraction pipe 5 is connected to the temporary storage tank 2, and the inlet end of the material extraction pipe 5 is inserted into the bottom of the temporary storage tank 2 to ensure that more raw materials can be extracted. Its outlet end is directly opposite the outlet end of the negative pressure pipe 3.

[0042] Based on the Venturi principle, when a high-speed airflow passes through the conical negative pressure pipe 3, a negative pressure will be formed inside the negative pressure pipe 3. Since the temporary storage tank 2 is connected to the atmosphere, there will be a certain pressure difference between the negative pressure pipe 3 and the temporary storage tank 2. The material in the temporary storage tank 2 will be extracted through the adsorption effect of the pressure difference and sprayed to the outlet end of the negative pressure pipe 3 through the extraction pipe 5. During the spraying process, the material will be fully stirred and mixed with the air.

[0043] Furthermore, the material extraction pipe 5 is arranged in a U-shape. One end of the material extraction pipe 5 is inserted into the negative pressure pipe 3, and the other end is connected to the vent pipe 6. Along the axis of the material extraction pipe 5, material extraction holes 10 are provided on the outer circumferential surface of the material extraction pipe 5, and each material extraction hole 10 is covered by the material in the temporary storage box.

[0044] That is, each of the extraction holes 10 is located at a different height in the temporary storage tank 2, thereby ensuring that all the material in the temporary storage tank 2 is extracted; on the other hand, the setting of multiple extraction holes 10 can effectively improve the material conveying efficiency.

[0045] Furthermore, a plurality of adjusting sleeves 11 are provided on the material extraction pipe 5, each of the adjusting sleeves 11 being coaxial with each of the material extraction holes 10, and some of the adjusting sleeves 11 are threadedly connected to a sealing block 12.

[0046] In use, depending on the actual situation, select to block part of the material extraction hole 10, thereby controlling the on / off state of each material extraction hole 10 to further control the material conveying efficiency. It is simple and convenient to operate.

[0047] The decarbonization device also includes a decarbonization tube 7 and a settling device 8. The decarbonization tube 7 is also provided with a heating module, which includes an induction coil 13, preferably a medium-frequency induction coil 13, which is spirally wound around the surface of the decarbonization tube 7.

[0048] A plurality of metal heating rods 14 are provided inside the decarbonization tube 7, wherein the metal heating rods 14 are preferably iron rods. The metal heating rods 14 are arranged side by side along the radial direction of the decarbonization tube 7, and the metal heating rods 14 are parallel to the axis of the decarbonization tube 7. Support frames 15 are provided at both ends of the decarbonization tube 7 along the axis of the decarbonization tube 7, and the two ends of each metal heating rod 14 are respectively connected to the support frames 15 on the same side.

[0049] Furthermore, a temperature sensor 16 is also provided inside the decarbonization tube 7, and the decarbonization device also includes a controller 9, which includes an industrial computer and a PLC that are electrically connected. The temperature sensor 16 is electrically connected to the PLC. The induction coil 13 is connected to external mains power through a medium frequency power supply 17. The medium frequency power supply 17 is electrically connected to the PLC.

[0050] By setting multiple metal heating rods 14, the uniformity of temperature distribution inside the decarbonization tube 7 can be effectively improved, ensuring that carbon powder in different areas can be burned, thereby improving the decarbonization effect. At the same time, the above device can also conveniently and flexibly adjust the temperature inside the decarbonization tube 7, ensuring the accuracy of temperature control.

[0051] The settling device 8 includes a box body 801 and a sealing cover 802 connected to each other. Along the length of the box body 801, one end of the box body 801 is provided with a feed pipe 803 connected to the decarbonization pipe 7, and the other end is provided with an exhaust pipe 804. The exhaust pipe 804 can be directly vented or a filter screen can be inserted inside it.

[0052] Along the length of the housing 801, a plurality of insertion slots 806 are sequentially arranged inside the housing 801. A sealing block 807 is provided on the edge of the separating net 805, and each sealing block 807 is inserted into the insertion slot 806. The sealing cover 802 is tightly fitted with the sealing block 807 on the top of the separating net 805.

[0053] Meanwhile, along the length of the box 801, a number of cone-shaped material collection hoods 809 are sequentially arranged at the bottom of the box 801. The inlet end of each material collection hood 809 is connected to the box 801, and its outlet end is connected to a discharge pipe 808.

[0054] It should be noted that each of the insertion slots 806 and each of the collection covers 809 are staggered, that is, the insertion slot 806 is located between two adjacent collection covers 809.

[0055] The enlarged housing 801 of the settling tank 8 effectively reduces the airflow speed. The airflow and potassium salt mixture impact each filter screen layer by layer. The airflow passes through the filter screen, while the potassium salt is blocked and eventually falls into the discharge pipe 808 under its own gravity. At the same time, the cooperation between the insertion groove 806 and the sealing block 807 improves the sealing performance and effectively reduces the difficulty of disassembling and assembling the equipment.

[0056] In this application, an external high-pressure gas source enters the negative pressure pipe through a jet pipe. Based on the Venturi effect, when the high-speed airflow passes through, it will form a suction negative pressure in the negative pressure pipe, thereby drawing out the material located in the temporary storage tank through the suction pipe and entering the decarbonization pipe through the outlet end of the negative pressure pipe. At the same time, the vent pipe can ensure the stability of the gas pressure in the temporary storage tank. In the decarbonization pipe, the heating device raises the temperature to 300-500℃. During the process of the mixture of airflow and material passing through the decarbonization pipe, the carbon powder is burned at high temperature and finally converted into carbon monoxide or carbon dioxide. Finally, the burned material enters the settling tank. After gas-solid separation, the gas is directly discharged into the atmosphere, and the dust that settles down is only the decarbonized potassium salt.

[0057] Compared with the prior art, this application uses high-speed airflow to adsorb potassium salts, which not only improves the potassium salt transport efficiency but also prevents potassium salt from clumping. Combined with subsequent heating, it can ensure that the dispersed carbon powder can be fully burned at high temperature, thereby effectively improving the carbon powder combustion efficiency and carbon removal effect.

[0058] Secondly, the airflow can prevent potassium salts from caking during calcination by its own impact force during material transport, which is beneficial for subsequent dissolution.

[0059] Finally, this application can reduce the toner content in a single process, which not only has high carbon removal efficiency, but also reduces equipment energy consumption and operating costs.

[0060] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A potassium salt decarburization apparatus characterized by comprising: Includes rack (1); Temporary storage tank (2), which is disposed on the frame (1); Negative pressure pipe (3), the negative pressure pipe (3) is set on the frame (1), the inlet end of the negative pressure pipe (3) is connected to a jet pipe (4), the jet pipe (4) is used to input high-speed airflow into the negative pressure pipe (3) to form a material suction negative pressure in the negative pressure pipe (3); The material extraction pipe (5) is connected at one end to the negative pressure pipe (3) and at the other end to the temporary storage tank (2); the top of the temporary storage tank (2) is also provided with a vent pipe (6) for connecting to the atmosphere. Decarbonization tube (7), the decarbonization tube (7) is connected to the negative pressure tube (3), and a heating module is provided on the decarbonization tube (7); Settling device (8), which is connected to the decarbonization pipe (7); The controller (9) is electrically connected to the heating module.

2. The potassium salt decarburization device according to claim 1, characterized by The negative pressure pipe (3) has a conical structure, with its large end being the air inlet and its small end being the air outlet. The inlet end of the jet pipe (4) is connected to an external high-pressure air source, and its outlet end is inserted into the negative pressure pipe (3) and faces the air outlet.

3. The potassium salt decarburization device according to claim 2, characterized by The material extraction pipe (5) has an overall U-shaped structure. One end of the material extraction pipe (5) is inserted into the negative pressure pipe (3), and the other end is connected to the vent pipe (6). Along the axis of the material extraction pipe (5), material extraction holes (10) are provided on the outer circumferential surface of the material extraction pipe (5), and each material extraction hole (10) is covered by the material in the temporary storage box.

4. The potassium salt decarburization device according to claim 3, characterized by The material extraction pipe (5) is also provided with a number of adjusting sleeves (11), each of the adjusting sleeves (11) being coaxial with each of the material extraction holes (10), and some of the adjusting sleeves (11) being threadedly connected to a sealing block (12).

5. A potassium salt decarbonization device according to claim 1, characterized in that, The heating module includes an induction coil (13) which is wound around the outer surface of the decarbonization tube (7).

6. The potassium salt decarburization device of claim 5, wherein, The heating module also includes several metal heating rods (14), each of which is arranged in parallel inside the decarbonization tube (7), and the axis of each metal heating rod (14) is parallel to the axis of the decarbonization tube (7); the two ends of the decarbonization tube (7) are also provided with support frames (15), and each of the metal heating rods (14) is connected to each of the support frames (15).

7. A potassium salt decarboxylation apparatus according to either one of claims 5 or 6, characterised in that, The decarbonization tube (7) is also equipped with a temperature sensor (16). The controller (9) includes an industrial computer and a PLC that are electrically connected. The temperature sensor (16) is electrically connected to the PLC. The induction coil (13) is connected to the external mains power through a medium frequency power supply (17). The medium frequency power supply (17) is electrically connected to the PLC.

8. The potassium salt decarburization device of claim 1, wherein, The settling device (8) includes a box (801) and a sealing cover (802) connected to each other. Along the length of the box (801), one end of the box (801) is provided with a feed pipe (803) connected to the decarbonization pipe (7), and the other end is provided with an exhaust pipe (804). Several layers of separation nets (805) are provided between the feed pipe (803) and the exhaust pipe (804).

9. The potassium salt decarburization device of claim 8, wherein, Along the length of the box (801), a plurality of insertion slots (806) are sequentially arranged inside the box (801), and sealing blocks (807) are provided on the edge of the separation net (805), with each sealing block (807) inserted into the insertion slot (806); the sealing cover (802) is tightly fitted with the sealing block (807) on the top of the separation net (805).

10. The potassium salt decarburization device of claim 9, wherein, Along the length of the box (801), a plurality of discharge pipes (808) are provided at the bottom of the box (801), and a conical material collection hood (809) is also provided at the bottom of the box (801), with each material collection hood (809) connected to each discharge pipe (808).

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