High-energy substance carbonization equipment

Abstract

The utility model relates to a kind of high energy substance carbonization equipment, comprising: auger and chamber, the outer tube of auger is equipped with feed inlet on one end top, and is equipped with discharge outlet in the other end lower side;Chamber is sleeved on the region between feed inlet and discharge outlet of outer tube, and the two end portions of chamber are sealingly connected between the outer surface of outer tube, first gas inlet and tail gas outlet are equipped on outer tube, first gas inlet is connected with inert gas supply end, second gas inlet and gas outlet are equipped on chamber, second gas inlet is connected with high-temperature gas supply end.Affirmative effect is that: the outer tube of auger is heated by high-temperature gas, so that the region between feed inlet and discharge outlet of outer tube is heated, so it is heated more evenly, and the internal carbonization uniformity is better;The equipment uses auger combined with chamber, and the utilization rate of internal space is higher, and the overall space size of equipment is smaller;Its heat preservation and sealing effect are better than rotary kiln dynamic sealing, more easily realized, better;Simple structure, low cost, good economic benefit.

Description

Technical Field

[0001] This utility model relates to the field of carbonization equipment technology, specifically to a carbonization equipment for high-energy materials. Background Technology

[0002] With the rapid development of the new energy vehicle industry, a large number of power batteries are entering their retirement period, and their efficient and environmentally friendly recycling has become a major issue concerning resource sustainability and environmental safety. The positive electrode material of retired power batteries (rich in valuable metals such as lithium, cobalt, nickel, and manganese) is the core of their recycling value, while the negative electrode is usually made of graphite material and copper foil current collector bonded together with an organic binder. In order to better separate the components of the battery cell completely, high-temperature carbonization technology has been introduced as an efficient pretreatment process. The core of this technology lies in utilizing the characteristics of organic matter to pyrolyze and carbonize in an oxygen-deficient high-temperature environment, so that organic matter such as binders, separators, and electrolytes can be fully decomposed into volatile gases and residual carbon.

[0003] Currently, mainstream enterprises use rotary kilns as carbonization equipment, but problems such as large space size, high energy consumption, and difficulty in sealing have been difficult to overcome. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a carbonization equipment for high-energy materials, so as to overcome the shortcomings of the prior art.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A high-energy-content material carbonization device includes: an auger and a chamber. The outer cylinder of the auger has a feed inlet at one end and a discharge outlet at the other end. Valves are provided on the feed inlet and the discharge outlet respectively. The chamber is fitted onto the area of ​​the outer cylinder between the feed inlet and the discharge outlet. The two ends of the chamber are sealed to the outer surface of the outer cylinder. The outer cylinder has a first air inlet and a tail gas outlet. The first air inlet is connected to an inert gas supply. The chamber has a second air inlet and an air outlet. The second air inlet is connected to a high-temperature gas supply.

[0006] The beneficial effects of this utility model are: The outer cylinder of the auger is heated by high-temperature gas, which allows the area between the inlet and outlet of the outer cylinder to be heated more evenly and with better internal carbonization uniformity. Compared to rotary kilns, tunnel kilns and other thermal equipment used for carbonization, this equipment uses a screw conveyor combined with a chamber, which has a higher internal space utilization rate and a smaller overall size. The insulation and sealing are mainly done in the chamber, so its insulation and sealing effect is easier to achieve and better than that of the dynamic sealing of the rotary kiln. Compared with other carbonization equipment, it has a simple structure, low cost, and good economic benefits.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the chamber is equipped with multiple second air inlets, which are located at different positions within the chamber.

[0009] The further beneficial effects of adopting the above are as follows: by sending high-temperature gas into the chamber through multiple second air inlets, the internal temperature can be kept uniform, and the high-temperature gas heated by other energy sources can be used together with the high-temperature exhaust gas in the exhaust gas treatment system, which can effectively reduce the energy consumption of the production line.

[0010] Furthermore, a temperature sensor is installed on the second air intake.

[0011] The further beneficial effect of adopting the above is: real-time monitoring of internal temperature to ensure the temperature requirements for material carbonization are met.

[0012] Furthermore, a temperature sensor is installed on the air outlet.

[0013] The further beneficial effect of adopting the above is: real-time monitoring of internal temperature to ensure the temperature requirements for material carbonization are met.

[0014] Furthermore, an insulation layer is wrapped around the outside of the cavity.

[0015] The further beneficial effects of adopting the above are: by adding an insulation layer to the outside of the chamber, heat loss can be avoided and equipment energy consumption can be reduced.

[0016] Furthermore, the insulation layer uses ceramic fiber insulation.

[0017] Furthermore, the outer cylinder of the auger is made of 310S material.

[0018] The further beneficial effects of adopting the above are: it can achieve the purpose of high temperature resistance and corrosion resistance.

[0019] Furthermore, the spiral shaft in the auger is made of 310S material.

[0020] The further beneficial effects of adopting the above are: it can achieve the purpose of high temperature resistance and corrosion resistance.

[0021] Furthermore, the inner wall of the cavity is made of 310S material.

[0022] The further beneficial effects of adopting the above are: it can achieve the purpose of high temperature resistance and corrosion resistance. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the high-energy-content material carbonization equipment of this utility model.

[0024] The attached diagram lists the components represented by each number as follows: 1. Screwdriver; 110. Outer cylinder; 111. Feed inlet; 112. Discharge outlet; 113. First air inlet; 114. Exhaust outlet; 120. Motor; 2. Chamber; 210. Second air inlet; 220. Air outlet; 3. Valve; 4. Temperature sensor; 5. Insulation layer. Detailed Implementation

[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] Example 1 like Figure 1 As shown, a high-energy-content material carbonization equipment includes: an auger 1 and a chamber 2. The outer cylinder 110 of the auger 1 has a feed inlet 111 at one end above the upper part and a discharge outlet 112 at the other end below the lower part of the outer cylinder 110 of the auger 1. Valves 3 are respectively provided on the feed inlet 111 and the discharge outlet 112. The spiral shaft of the auger 1 is located inside the outer cylinder 110, and the motor 120 of the auger 1 is located outside the outer cylinder 110. The feed inlet 111 is preferably far away from the motor 120 of the auger 1, while the discharge outlet 112 is preferably close to the motor 120 of the auger 1. The two ends of the outer cylinder 110 are sealed. One end of the spiral shaft passes through the outer cylinder 110 and is connected to the main shaft of the motor 120 after passing through a coupling and a reducer. The chamber 2 is fitted onto the outer cylinder 110 in the area between the feed inlet 111 and the discharge outlet 112. The two ends of the chamber 2 are sealed to the outer surface of the outer cylinder 110. The outer cylinder 110 is provided with a first air inlet 113 and an exhaust outlet 114. The first air inlet 113 is close to the feed inlet 111, and the exhaust outlet 114 is close to the discharge outlet 112. The first air inlet 113 is connected to an inert gas supply end, that is, the inert gas supply end provides inert gas. The inert gas enters the outer cylinder 110 of the auger 1 through the first air inlet 113, so that the oxygen concentration inside the outer cylinder 110 is <2%, to prevent material oxidation and contamination. The chamber 2 is provided with a second air inlet 210 and an air outlet 220. The second air inlet 210 is connected to a high-temperature gas supply end, that is, the high-temperature gas supply end provides high-temperature gas. The high-temperature gas enters the chamber 2 through the second air inlet 210 and is located between the inner wall of the chamber 2 and the outer wall of the outer cylinder 110. The high-temperature gas after heat exchange can be discharged through the air outlet 220.

[0027] Workflow: Close valve 3 on discharge port 112 and open valve 3 on inlet port 111. Inert gas is supplied from the inert gas supply end to the outer cylinder 110 through the first air inlet 113, ensuring that the oxygen concentration inside the outer cylinder 110 is <2%. The function of the inert gas is to isolate oxygen, prevent material oxidation, avoid chemical reactions with the material, and contaminate the material. The exhaust gas is discharged from the exhaust gas outlet 114. The material is then fed into the outer cylinder 110 through inlet port 111, and then valve 3 on inlet port 111 is closed. The material moves inside the outer cylinder 110 under the action of the spiral shaft. The material is shredded battery cell material, which includes positive and negative electrode plates, diaphragms, shells, electrolytes and other substances. High-temperature gas enters the chamber 2 through the second air inlet 210 to heat the material inside the outer cylinder 110, causing the material inside the outer cylinder 110 to carbonize. The outer cylinder 110 is heated more evenly in the chamber 2, and the carbonization effect of the material is better. In order to avoid oxidation of the material during the carbonization process, the rotation speed of the spiral shaft is controlled to meet the carbonization time required for the material.

[0028] The outer cylinder 110 of the auger 1 is heated by high-temperature gas, which allows the area between the inlet 111 and the outlet 112 of the outer cylinder 110 to be heated, thus making the heating more uniform and the internal carbonization more uniform. Compared to rotary kilns, tunnel kilns and other thermal equipment used for carbonization, this equipment uses a screw conveyor 1 combined with a chamber 2, which has a higher internal space utilization rate and a smaller overall size. The insulation and sealing are mainly in chamber 2, so its insulation and sealing effects are easier to achieve and better than those of the dynamic sealing of the rotary kiln. Compared with other carbonization equipment, it has a simple structure, low cost, and good economic benefits.

[0029] Example 2 like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, as detailed below: The chamber 2 is equipped with multiple second air inlets 210, which are located at different positions in the chamber 2. High-temperature gas is supplied into the chamber 2 through the multiple second air inlets 210, which can ensure a uniform internal temperature. The high-temperature gas heated by other energy sources can be used together with the high-temperature exhaust gas in the exhaust gas treatment system, which can effectively reduce the energy consumption of the production line.

[0030] Temperature sensor 4 is installed on the second air inlet 210 and the air outlet 220 to monitor the internal temperature in real time and ensure the temperature requirements for material carbonization are met.

[0031] Example 3 like Figure 1 As shown, this embodiment is a further improvement on embodiment 1 or 2, as detailed below: The chamber 2 is wrapped with an insulation layer 5. By adding an insulation layer 5 to the outside of the chamber 2, heat loss can be avoided and the energy consumption of the equipment can be reduced. The insulation layer 5 is preferably made of ceramic fiber insulation layer.

[0032] Example 4 like Figure 1 As shown, this embodiment is a further improvement on embodiment 1, 2, or 3, as detailed below: The outer cylinder 110 of the auger 1 is made of 310S stainless steel, and the spiral shaft of the auger 1 is also made of 310S stainless steel, which provides high temperature resistance and corrosion resistance. The inner wall of the chamber 2 can also be made of 310S stainless steel.

[0033] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A carbonization equipment for high-energy materials, characterized in that, include: The auger (1) and the chamber (2) are provided. The outer cylinder (110) of the auger (1) has an inlet (111) at one end and an outlet (112) at the other end. The inlet (111) and the outlet (112) are respectively provided with valves (3). The chamber (2) is fitted on the outer cylinder (110) in the area between the inlet (111) and the outlet (112). The two ends of the chamber (2) are sealed to the outer surface of the outer cylinder (110). The outer cylinder (110) is provided with a first air inlet (113) and an exhaust outlet (114). The first air inlet (113) is connected to an inert gas supply end. The chamber (2) is provided with a second air inlet (210) and an outlet (220). The second air inlet (210) is connected to a high-temperature gas supply end.

2. The high-energy material carbonization equipment according to claim 1, characterized in that, The chamber (2) is provided with multiple second air inlets (210), which are located at different positions in the chamber (2).

3. The high-energy material carbonization equipment according to claim 1, characterized in that, A temperature sensor (4) is provided on the second air inlet (210).

4. The apparatus of claim 1, wherein the apparatus further comprises a carbonization chamber. A temperature sensor (4) is provided on the air outlet (220).

5. The apparatus of claim 1, wherein the apparatus further comprises a carbonization chamber. The chamber (2) is wrapped with an insulation layer (5).

6. The high-energy material carbonization equipment according to claim 5, characterized in that, The insulation layer (5) is a ceramic fiber insulation layer.

7. The apparatus of claim 1, wherein the apparatus further comprises a carbonization chamber. The outer cylinder (110) of the auger (1) is made of 310S material.

8. The apparatus of claim 1, wherein the apparatus further comprises a carbonization chamber. The spiral shaft of the auger (1) is made of 310S material.

9. The apparatus of claim 1, wherein the apparatus further comprises a carbonization chamber. The inner wall of the chamber (2) is made of 310S material.

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