Electrode paste binder anti-residue discharging system of double-stirring mixing and kneading pot
By adopting a combination solution of negative pressure pump and wet material collection tank in the electrode paste production equipment, the uneven distribution ratio and increased energy consumption caused by residual wet material in the feed pipeline are solved, and a more uniform finished electrode paste product and lower energy consumption are achieved.
Patent Information
- Application Number
- CN202421200796.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-05-29
AI Technical Summary
In the existing electrode paste production equipment, the residual wet material in the feed pipeline cannot enter the mixing pot in time and completely, resulting in uneven mixing ratios and degradation of the finished electrode paste quality. At the same time, the long pipeline increases the insulation energy consumption.
A double-stirring mixing and kneading pot is designed to prevent residual feeding system from electrode paste adhesive, and a negative pressure pump is used to blow the residual wet material into the wet material collection tank, and the accumulated wet material is flowed into the mixing and kneading pot through the secondary feed pipe.
It effectively avoids the distribution and blockage of residual wet materials in the feed pipeline, improves the uniformity of the mixing pot, reduces the quality of the finished electrode paste, and saves thermal insulation energy consumption.
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Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of electrode paste production equipment, and in particular relates to an electrode paste binder residual prevention feeding system of a double stirring and kneading pot. Background Art
[0002] In the electrode paste production process, dry materials such as graphite and coal used for conduction and wet materials such as medium-temperature asphalt and tar used as binders need to be mixed and stirred into a homogeneous paste in strict proportion, and then pressed, demolded and cooled to form blocks for use as electrodes in the electric arc furnace.
[0003] In the prior art, a double-layer kneading pot is used to mix dry and wet materials, and a downstream feeding system is used to feed the double-layer kneading pot. The double-layer kneading pot is a double-stirring kneading pot, which adopts an upper and lower layer structure, each layer is provided with a reamer, and the upper and lower layers are fed separately; in the downstream feeding system, the asphalt scale and tar scale used for feeding by weight ratio are connected in series to the lower layer of the double-layer kneading pot through a feeding pipeline and a valve, and the asphalt scale and tar scale are located at the upper position of the double-layer kneading pot, and a fixed amount of tar and asphalt mixed wet materials are introduced into the double-layer kneading pot by gravity. In order to improve the productivity and mixing efficiency of electrode paste, the above-mentioned downstream feeding system usually proportions and provides mixed wet materials for multiple groups of double-layer kneading pots, so a longer feeding pipeline is required to meet the feeding requirements. Since the wet material flows into the kneading pot by gravity, the amount of residual wet material in the longer feeding pipeline is large, which causes the following problems: the residual wet material in the pipeline cannot enter the kneading pot in time and completely due to its viscosity, resulting in uneven proportions in the kneading pot, and ultimately reducing the quality of the finished electrode paste; in order to ensure that the pipeline is not blocked by residual wet material, the extended pipeline needs to consume more energy for insulation, which increases production energy consumption and causes serious waste. Summary of the invention
[0004] Based on the above background technology needs, the present application provides an electrode paste binder residual prevention feeding system with a double stirring and kneading pot to solve the problem caused by residual wet material in the feeding pipeline.
[0005] In order to achieve the above purpose, the technical solution of this application is:
[0006] A system for preventing residual discharge of electrode paste binder of a double stirring and kneading pot, comprising a tar scale, an asphalt scale, a primary feeding pipe connecting the tar scale and the asphalt scale with the double stirring and kneading pot, a residual material collection component and a blowing component, wherein the residual material collection component comprises a wet material collection tank and a secondary feeding pipe, a wet material outlet is provided at the bottom of the wet material collection tank, the wet material outlet is connected with the double stirring and kneading pot through the secondary feeding pipe, a wet material inlet and an exhaust port are arranged at intervals on one side of the wet material collection tank away from the wet material outlet, a discharge valve is provided at the discharge end of the primary feeding pipe, the wet material inlet is unidirectionally connected with the discharge end of the primary feeding pipe; the blowing component comprises a negative pressure pump, a blowing air inlet is provided at the feed end of the primary feeding pipe, the air inlet end of the negative pressure pump is connected with the exhaust port, and the negative pressure pump is used to allow blowing gas to enter from the blowing air inlet and flow out from the exhaust port.
[0007] Preferably, the blowing assembly also includes an air collecting tank and an air flow heater, wherein the air collecting tank is used to store the blowing gas, the air outlet end of the air collecting tank is connected to the air inlet end of the air flow heater, the air inlet end of the air collecting tank is unidirectionally connected to the air outlet end of the negative pressure pump, and the air outlet end of the air flow heater is unidirectionally connected to the blowing air inlet.
[0008] Preferably, the gas collecting tank comprises a nitrogen collecting tank, which is used to store nitrogen, and the gas outlet end of the nitrogen collecting tank is unidirectionally connected to the gas inlet end of the air flow heater, and the gas inlet end of the nitrogen collecting tank is unidirectionally connected to the gas outlet end of the negative pressure pump.
[0009] Preferably, the blowing assembly further comprises a heat exchange pipe, wherein the heat exchange pipe is arranged around one side of the wet material collection tank and is connected to the blowing air inlet, and the heat exchange pipe is used for performing heat exchange between the blowing gas and the wet material collection tank.
[0010] Preferably, the wet material collection tank is provided with a thermal insulation jacket, and at least a portion of the heat exchange tube is located between the thermal insulation jacket and the side wall of the wet material collection tank.
[0011] Preferably, the blowing assembly further comprises an air supply tank, the air outlet end of the air supply tank is in one-way communication with the air inlet end of the heat exchange tube, and the air supply tank is used to replenish the blowing gas to the heat exchange tube.
[0012] Preferably, a nitrogen generator is provided in the gas replenishing tank.
[0013] Preferably, the exhaust port is provided with a wet material filter, and the wet material filter is used to prevent wet material from passing through the exhaust port.
[0014] Preferably, the wet material outlet is provided with a gravity discharge valve.
[0015] Preferably, the angle between the direction in which the secondary feed pipe transports the wet material and the direction of gravity is greater than 0° and less than 90°.
[0016] By adopting the above technical solution, compared with the prior art, the present application has at least the following beneficial effects:
[0017] The negative pressure pump generates negative pressure in the wet material collecting tank, so that the first-level feeding pipe introduces blowing gas from the blowing air inlet, and blows the residual wet material in the first-level feeding pipe into the wet material collecting tank, which can avoid the problem of residual wet material being distributed in various places in the first-level feeding pipe, causing blockage of the feeding pipeline and increased insulation energy consumption; after the residual wet material accumulates in the wet material collecting tank, it flows into the double-stirring kneading pot through the second-level feeding pipe, which solves the problem of uneven ratio of dry and wet materials in the double-stirring kneading pot caused by a large amount of residual wet material in the first-level feeding pipe, thereby reducing the quality of the finished electrode paste. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the basic structure of the electrode paste binder residual prevention feeding system.
[0019] Figure 2 Schematic diagram of the structure of the electrode paste binder residual prevention feeding system in Example 1.
[0020] Figure 3 It is a schematic diagram of the structure of the electrode paste binder residual prevention feeding system in Example 2.
[0021] Figure 4 This is a schematic diagram of the structure of the electrode paste binder residual prevention feeding system in Example 3.
[0022] Figure 5 It is a partial enlarged view of the wet material collection tank in any embodiment.
[0023] In the figure: tar scale 10, asphalt scale 20, primary feeding pipe 30, blowing air inlet 31, unloading valve 32, residual material collection assembly 40, wet material collection tank 41, wet material outlet 411, wet material inlet 412, exhaust port 413, insulation jacket 414, wet material filter 415, gravity unloading valve 416, secondary feeding pipe 42, blowing assembly 50, negative pressure pump 51, air collecting tank 52, air flow heater 53, heat exchange tube 54, air supply tank 55, nitrogen generator 551, kneading pot 60. DETAILED DESCRIPTION
[0024] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The technical solution of the present application will be further described below in conjunction with the drawings of the embodiments of the present application, and the present application is not limited to the following specific implementation methods.
[0025] It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components. In the description of the present application, it should be understood that if there are terms such as "upper", "lower", "inner", "outer", "left", "right", "front", "rear", "top", "bottom" and the like indicating directions or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the structure or component referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present patent, and for those of ordinary skill in the art, the specific meanings of the above terms can be understood according to the specific circumstances.
[0026] The following is combined with Figure 1 To Attachment Figure 5 And specific embodiments further describe the present application in detail.
[0027] In the present application, a system for preventing residual discharge of electrode paste binder of a double stirring kneading pot is disclosed, the system comprises a tar scale 10, an asphalt scale 20, a primary feeding pipe 30 connecting the tar scale 10, the asphalt scale 20 and the feeding end of the double stirring kneading pot, a residual material collection component 40 and a blowing component 50, wherein the tar scale 10 and the asphalt scale 20 convey tar and liquid asphalt to the double stirring kneading pot through the primary feeding pipe 30; the residual material collection component 40 comprises a wet material collection tank 41 and a secondary feeding pipe 42, the bottom of the wet material collection tank 41 is provided with a wet material outlet 411, and the wet material outlet 411 is connected to the secondary feeding pipe 42. The first-stage feeding pipe 42 is connected to the feeding end of the double stirring and kneading pot, a wet material inlet 412 and an exhaust port 413 are arranged at intervals on one side of the wet material collecting tank 41 away from the wet material outlet 411, a discharge valve 32 is arranged at the discharge end of the first-stage feeding pipe 30, and the wet material inlet 412 is unidirectionally connected to the discharge end of the first-stage feeding pipe 30; the blowing assembly 50 includes a negative pressure pump 51, a blowing air inlet 31 is provided at the feeding end of the first-stage feeding pipe 30, and the air inlet end of the negative pressure pump 51 is connected to the exhaust port 413, and the negative pressure pump 51 is used to allow the blowing gas to enter from the blowing air inlet 31 and flow out from the exhaust port 413.
[0028] Specifically, the tar scale 10 and the asphalt scale 20 are both devices for quantitative feeding in the above-mentioned feeding system, which can weigh the corresponding mass of tar and asphalt according to the ratio requirements. After opening the respective feeding valves of the tar scale 10 and the asphalt scale 20, the wet material can be introduced into the double stirring kneading pot along the primary feeding pipe 30 by gravity; in the direction of the wet material flowing along the primary feeding pipe 30, the connection between the above-mentioned wet material inlet 412 and the primary feeding pipe 30 is adjacent to the feeding valve 32 at the end of the primary feeding pipe 30 and is located before the feeding valve 32, and the wet material inlet 412 can be connected with the primary feeding pipe 30 through a one-way valve; in order to allow the blowing gas to enter from the blowing air inlet 31 and flow along the primary feeding pipe 30 to the wet material inlet 412, the blowing air inlet 31 can also be connected with the air outlet end of the negative pressure pump 51.
[0029] During the use of the above system, the unloading valves of the tar scale 10 and the asphalt scale 20 are opened to feed the materials. When the tar scale 10 and the asphalt scale 20 are fed according to the proportion, the unloading valves are closed. When the residual materials in the primary feeding pipe 30 can no longer flow into the kneading pot 60 by gravity, the unloading valve 32 at the end of the primary feeding pipe 30 is closed, and the negative pressure pump 51 is started to introduce the blowing gas from the blowing gas inlet 31. The blowing gas purges the residual wet materials along the primary feeding pipe 30. At this time, the wet material collecting tank 41 is in a negative pressure state, so that the residual wet materials enter the wet material collecting tank 41 through the wet material inlet 412. After a certain amount of wet materials accumulates in the wet material collecting tank 41, the wet material outlet 411 below the wet material collecting tank 41 is opened, so that the accumulated wet materials directly enter the kneading pot 60 (referred to as a double stirring kneading pot, which will not be described in detail hereinafter) through the secondary feeding pipe 42.
[0030] The electrode paste binder residual prevention feeding system using the double stirring kneading pot can achieve at least the following technical effects:
[0031] The negative pressure pump 51 generates negative pressure in the wet material collecting tank 41, so that the first-level feeding pipe 30 introduces blowing gas from the blowing air inlet 31, and blows the residual wet material in the first-level feeding pipe 30 into the wet material collecting tank 41, which can avoid the problem of residual wet material distributed in various places of the first-level feeding pipe 30 causing blockage of the feeding pipeline and increased insulation energy consumption; after the residual wet material accumulates in the wet material collecting tank 41, it flows into the kneading pot 60 through the second-level feeding pipe 42, which solves the problem that the large amount of residual wet material in the first-level feeding pipe 30 causes uneven ratio of dry and wet materials in the kneading pot 60, thereby reducing the quality of the finished electrode paste.
[0032] In addition, the present application also provides some more specific implementation methods to improve the electrode paste binder residual prevention feeding system of the above-mentioned double stirring kneading pot. Example
[0033] Furthermore, in order to ensure that sufficient blowing gas can be introduced into the first-level feeding pipe 30 and the temperature of the blowing gas can meet the insulation requirement of the wet material in the feeding pipeline, the above-mentioned blowing assembly 50 also includes an air collecting tank 52 and an air flow heater 53. The air collecting tank 52 is used to store the blowing gas, and the air outlet end of the air collecting tank 52 is connected to the air inlet end of the air flow heater 53, the air inlet end of the air collecting tank 52 is unidirectionally connected to the air outlet end of the negative pressure pump 51, and the air outlet end of the air flow heater 53 is unidirectionally connected to the blowing air inlet 31.
[0034] Specifically, in order to prevent the blowing gas from reacting with wet materials such as asphalt and tar during the blowing process, contact between air and wet materials should be prevented, and a gas with higher safety and stability should be used as the blowing gas; the air inlet end of the gas collecting tank 52 is connected to the air outlet end of the negative pressure pump 51 by a one-way valve, so that the blowing gas discharged by the negative pressure pump 51 can enter the gas collecting tank 52 for collection in one direction; the air flow heater 53 adopts an instant air flow heater or a preheated axial flow heater. When the blowing gas flows out of the gas collecting tank 52, it is immediately heated to a temperature that can keep the tar and asphalt in liquid state, and can ensure that the blowing gas enters the blowing air inlet 31 at a sufficient flow rate, so that the blowing gas can achieve the effect of blowing away the residual wet material.
[0035] When the above-mentioned blowing assembly 50 is used for residual cleaning, the gas collecting tank 52 provides recyclable blowing gas, which can meet the wet material's requirements for the stability of the contact gas and save the cost of using the blowing gas; the air flow heater 53 can meet the wet material's requirements for temperature, so that the residual wet material remains in liquid form and can be smoothly sucked into the wet material collection tank 41.
[0036] Furthermore, in order to meet the requirements of wet material on the stability of blowing gas and ensure the safe storage of blowing gas, the above-mentioned gas collecting tank 52 includes a nitrogen collecting tank, which is used to store nitrogen, and the outlet end of the nitrogen collecting tank is unidirectionally connected to the inlet end of the airflow heater 53, and the inlet end of the nitrogen collecting tank is unidirectionally connected to the outlet end of the negative pressure pump 51.
[0037] Specifically, the nitrogen collection tank is a gas storage tank adopted according to the nitrogen storage requirement standard; the gas outlet end of the nitrogen collection tank is connected to the gas inlet end of the air flow heater 53 through a one-way valve.
[0038] During the use of the above system, the nitrogen collection tank can ensure that nitrogen is output and input in a fixed flow direction, meeting the requirements of wet material for the stability of the blowing gas and the safety of storing the blowing gas.
[0039] Embodiment 2, based on the basic structure of the electrode paste binder residual prevention feeding system of the above double stirring and kneading pot, the difference between Embodiment 2 and Embodiment 1 is:
[0040] Furthermore, in order to meet the requirements of the wet material on the blowing gas temperature and save energy consumption of heating the blowing gas, the above-mentioned blowing assembly 50 also includes a heat exchange pipe 54, which is arranged around the outside of the wet material collection tank 41 and is connected to the blowing air inlet 31.
[0041] When using the above system, since the wet material entering the primary feed pipe 30 from the asphalt scale 20 and the tar scale 10 can maintain a relatively high temperature for a certain period of time, while the blowing gas continues to flow into the primary feed pipe 30, the wet material in the wet material collecting tank 41 makes the side wall of the wet material collecting tank 41 have a relatively high temperature through heat radiation, and the heat exchange tube 54 can use the temperature of the wet material collecting tank 41 to heat the blowing gas, thereby achieving the effect of saving energy.
[0042] Furthermore, in order to prevent the temperature of the wet material collection tank 41 from being lost rapidly, the wet material collection tank 41 is provided with an insulation jacket 414 , and at least a portion of the heat exchange tube 54 is located between the insulation jacket 414 and the side wall of the wet material collection tank 41 .
[0043] When the above system is used, the insulating jacket 414 sleeved on the outer periphery of the wet material collection tank 41 can prevent the temperature of the wet material collection tank 41 from being lost to the atmosphere, ensuring that the wet material in the wet material collection tank 41 can maintain a liquid state, and improves the heating efficiency of the heat exchange tube 54, so that the temperature of the blowing gas rises rapidly.
[0044] Embodiment 3 is based on part of Embodiment 2, and the difference between Embodiment 3 and Embodiment 2 is that:
[0045] Furthermore, in order to meet the requirements of wet material for the stability of blowing gas, the above-mentioned blowing assembly 50 also includes an air replenishing tank 55, the air outlet end of the air replenishing tank 55 is unidirectionally connected to the air inlet end of the heat exchange tube 54, and the air replenishing tank 55 is used to replenish the blowing gas to the heat exchange tube 54.
[0046] Specifically, the air replenishing tank 55 is a storage device or a generating device for the blowing gas, and its outlet end is connected to the air inlet end of the heat exchange tube 54 through a one-way valve. When the air replenishing tank 55 is a storage device, the air inlet end of the air replenishing tank 55 is connected to the air outlet end of the negative pressure pump 51 so that the blowing gas can be circulated.
[0047] When the negative pressure pump 51 is started, the air supply tank 55 can supply the blowing gas into the primary feed pipe 30 to meet the requirement of residual wet material for the stability of the blowing gas.
[0048] Furthermore, a nitrogen generator 551 is provided in the gas supply tank 55 .
[0049] The nitrogen generator 551 can automatically generate nitrogen and store it in the gas replenishment tank 55, so that the gas replenishment tank 55 can continuously provide stable nitrogen to the gas replenishment component.
[0050] In order to further improve the structure in any of the above embodiments, the present application also provides some necessary implementation methods to enhance the effect of the present application in solving technical problems.
[0051] Furthermore, in the wet material collection tank 41 , a wet material filter 415 is provided at the exhaust port 413 , and the wet material filter 415 is used to prevent the wet material from passing through the exhaust port 413 .
[0052] Specifically, the wet material filter 415 is a precise filter structure, which can filter out liquid wet material in the blowing gas, so that the blowing gas can be recycled and the wet material can be accumulated in the wet material collection tank 41 .
[0053] Furthermore, a gravity discharge valve 416 is provided at the wet material outlet 411 .
[0054] After setting the opening parameters of the gravity discharge valve 416 according to the collectible amount of the wet material collection tank 41 and the amount of wet material injected into the kneading pot 60, as the residual wet material in the primary feed pipe 30 is continuously sucked into the wet material collection tank 41 for accumulation, when the accumulated amount of wet material reaches the remaining amount that can meet the wet material injected into the kneading pot 60, the gravity discharge valve 416 automatically opens, and the residual wet material accumulated in the wet material collection tank 41 flows into the kneading pot 60 along the secondary feed pipe 42 under the influence of gravity, so that the wet material ratio in the kneading pot 60 reaches the standard.
[0055] Furthermore, in order to ensure that most of the wet material accumulated in the wet material collection tank 41 can enter the kneading pot 60, the angle between the direction of the wet material conveying pipe 42 and the gravity direction is greater than 0° and less than 90°. That is, the main pipeline of the secondary feed pipe 42 can be connected with the feed end of the kneading pot 60 in a vertical downward direction or an inclined downward direction, so that the wet material in the wet material collection tank 41 flows downstream into the kneading pot 60, thereby reducing the residual amount of wet material in the secondary wet material pipeline; if necessary, the length of the secondary feed pipe 42 can be minimized, so that the wet material outlet 411 of the wet material collection tank 41 is infinitely close to the feed port of the kneading pot 60, so as to ensure that all the residual wet material can enter the kneading pot 60, and the actual injection amount of the wet material in the kneading pot 60 is consistent with the standard injection amount as much as possible, so that the quality of the electrode paste product reaches the best standard.
[0056] In combination with the multiple structures and features in the above embodiments, the system can collect the residual wet material in the primary feed pipe 30 and inject it into the kneading pot 60 while meeting the requirements of the residual wet material for the blowing gas. The system has certain beneficial effects in avoiding the waste of wet material, preventing the main feed pipe of the feeding system from being blocked by the residual wet material, saving the energy consumption of heat preservation of the residual wet material, reducing the gap between the actual injection amount of the wet material in the kneading pot 60 and the standard injection amount, and improving the quality of the electrode paste product.
[0057] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation methods of the present application. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A system for preventing residual discharge of electrode paste binder of a double stirring kneading pot, comprising a tar scale, an asphalt scale and a primary feed pipe connecting the tar scale, the asphalt scale and the double stirring kneading pot, characterized in that: Also includes, A residual material collection component, the residual material collection component includes a wet material collection tank and a secondary feeding pipe, a wet material outlet is provided at the bottom of the wet material collection tank, the wet material outlet is connected to the double stirring and kneading pot through the secondary feeding pipe, a wet material inlet and an exhaust port are arranged at intervals on one side of the wet material collection tank away from the wet material outlet, a discharge valve is provided at the discharge end of the primary feeding pipe, and the wet material inlet is in one-way communication with the discharge end of the primary feeding pipe; and, A blowing assembly, wherein the blowing assembly includes a negative pressure pump, a blowing air inlet is provided at the feed end of the first-level feed pipe, the air inlet end of the negative pressure pump is connected to the exhaust port, and the negative pressure pump is used to allow the blowing gas to enter from the blowing air inlet and flow out from the exhaust port.
2. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 1 is characterized in that: The blowing assembly also includes an air collecting tank and an air flow heater. The air collecting tank is used to store the blowing gas. The air outlet end of the air collecting tank is connected to the air inlet end of the air flow heater. The air inlet end of the air collecting tank is unidirectionally connected to the air outlet end of the negative pressure pump. The air outlet end of the air flow heater is unidirectionally connected to the blowing air inlet.
3. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 2 is characterized in that: The gas collecting tank comprises a nitrogen collecting tank, which is used to store nitrogen. The gas outlet of the nitrogen collecting tank is unidirectionally connected to the gas inlet of the air flow heater, and the gas inlet of the nitrogen collecting tank is unidirectionally connected to the gas outlet of the negative pressure pump.
4. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 1, characterized in that: The blowing assembly also includes a heat exchange pipe, which is arranged around one side of the wet material collection tank and is connected to the blowing air inlet. The heat exchange pipe is used to allow the blowing gas to exchange heat with the wet material collection tank.
5. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 4, characterized in that: The wet material collection tank is provided with a heat-insulating jacket, and at least a portion of the heat exchange tube is located between the heat-insulating jacket and the side wall of the wet material collection tank.
6. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 4, characterized in that: The blowing assembly also includes an air supply tank, the air outlet end of the air supply tank is in one-way communication with the air inlet end of the heat exchange tube, and the air supply tank is used to supplement the blowing gas to the heat exchange tube.
7. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 6, characterized in that: A nitrogen generator is arranged in the gas replenishing tank.
8. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 1, characterized in that: The exhaust port is provided with a wet material filter, and the wet material filter is used to prevent wet material from passing through the exhaust port.
9. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 1, characterized in that: The wet material outlet is provided with a gravity discharge valve.
10. The electrode paste binder residual prevention feeding system of the double stirring kneading pot according to claim 1, characterized in that: The angle between the direction in which the secondary feeding pipe conveys the wet material and the direction of gravity is greater than 0° and less than 90°.
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