Blending device convenient for quantitative blanking

Abstract

The utility model relates to the technical field of production of high-porosity lithium ion battery diaphragms, in particular to a blending device convenient for quantitative blanking, which comprises a tank body, and a cover plate is mounted above the tank body through screws; a shell of a plunger pump is installed outside the tank body through screws, a pressure sensor is arranged at the discharging end of the plunger pump, a flow meter is arranged at one end of the pressure sensor, an electric control valve is arranged at the other end of the flow meter, and a feeding pipe is arranged at one end of the electric control valve. The double-shaft stirring assembly is arranged, stirring can be conducted in two directions at the same time, internal raw materials can be stirred more evenly, the raw materials with different components can be distributed more sufficiently and more evenly, the consistency and stability of product performance are ensured, meanwhile, the quantitative control assembly is arranged, and materials needed by a diaphragm can be accurately metered and cut through the quantitative discharging technology; and the material mixing ratio of each diaphragm is ensured to be within a strict specification.

Description

Technical Field

[0001] The utility model relates to the technical field of high-porosity lithium-ion battery diaphragm production, in particular to a blending device which is convenient for quantitative material feeding. Background Art

[0002] High-porosity lithium-ion battery separator refers to an isolation material used in lithium-ion batteries. It plays an important role in isolating positive and negative electrodes, conducting ions, and preventing direct contact between electrolytes. The main feature of this separator is its high porosity, that is, there are a large number of micropores and mesopores in its structure. These pores can accommodate electrolytes and promote the transmission of ions, thereby improving the performance of the battery.

[0003] In the process of realizing the present utility model, the inventors found that the prior art has the following problems: 1. Single-axis stirring may be relatively weak in mixing uniformity. Since there is only one stirring shaft, the flow and mixing path of the material is relatively simple, and it is difficult to form a complex and comprehensive flow pattern like a forward and reverse double-axis stirring. As a result, the degree of mixing of the raw materials in different parts may be different, affecting the consistency and quality of the final product. At the same time, since the efficiency of single-axis stirring may be low when processing raw materials with high viscosity or high solid content, it may not be able to effectively overcome the internal friction and viscous resistance between the raw materials, thereby prolonging the stirring time and increasing the production cycle; 2. The raw material ratio is out of control, and the feeding amount of each raw material cannot be accurately controlled, which easily leads to inaccurate raw material ratios, thereby affecting the performance and quality of the blend, and ultimately may affect the performance of the battery separator, such as porosity, permeability, mechanical strength, etc., and the production efficiency is unstable. The instability of the feeding amount will make the production process unpredictable, sometimes too much and sometimes too little, resulting in fluctuations in production efficiency, making it difficult to achieve stable continuous production. Utility Model Content

[0004] The purpose of the utility model is to provide a blending device that is convenient for quantitative feeding, so as to solve the problem that quantitative feeding cannot be performed and the raw material ratio is inaccurate, thus affecting the performance and quality of the blend. To achieve the above purpose, the utility model provides the following technical solution: a blending device that is convenient for quantitative feeding, comprising a tank body, a cover plate is installed on the top of the tank body by screws;

[0005] The outer shell of the plunger pump is installed on the outside of the tank body by screws, the discharge end of the plunger pump is provided with a pressure sensor, one end of the pressure sensor is provided with a flow meter, the other end of the flow meter is provided with an electric regulating valve, one end of the electric regulating valve is provided with a feed pipe, the outer wall of the tank body is provided with a discharge pipe, and a liquid level sensor is installed on one side of the tank body by screws.

[0006] Further preferably, a motor is installed on the top of the cover plate by screws, one side of the motor passes through the mounting ring, a driving bevel gear is installed on the output shaft on one side of the motor by bolts, a first driven bevel gear is meshed above the driving bevel gear, a second driven bevel gear is meshed below the driving bevel gear, a first driven shaft is inserted in the middle of the first driven bevel gear, a second driven shaft is installed below the second driven bevel gear, rotating blades are welded below the second driven shaft, a rotating impeller is welded below the first driven shaft, an intelligent control panel is installed on the top of the cover plate by screws, the first driven bevel gear forms a rotating structure through the driving bevel gear, the first driven shaft forms a rotating structure through the first driven bevel gear, and the rotating impeller forms a rotating structure through the first driven shaft.

[0007] Further preferably, the mounting ring has a "U"-shaped shape, and circular rings are provided at both ends and the middle of the mounting ring, and the first driven shaft passes through the interior of the second driven shaft.

[0008] Further preferably, the second driven bevel gear forms a rotating structure through the driving bevel gear, and the second driven shaft forms a rotating structure through the second driven bevel gear, and the rotating blade forms a rotating structure through the second driven shaft.

[0009] Further preferably, a plurality of cable connections are provided on one side of the intelligent control panel, and the intelligent control panel is connected to the motor and to the plunger pump, and the pressure sensor is connected to the intelligent control panel and to the flow meter and to the intelligent control panel, and the electric regulating valve is connected to the intelligent control panel and to the liquid level sensor and to the intelligent control panel.

[0010] Further preferably, a plurality of pipeline connections are provided on one side of the plunger pump, and the plunger pump is connected to the pressure sensor, the pressure sensor is connected to the flow meter, and the flow meter is connected to the electric regulating valve.

[0011] Further preferably, the outer structural dimensions of the lower end of the cover plate are consistent with the inner structural dimensions of the upper end of the tank body.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, firstly, the uniformity of mixing can be greatly improved. The rotation of the positive and negative double shafts in different directions can form a complex flow pattern of the material in the stirring container, so that the raw materials of different components are more fully and evenly distributed, ensuring the consistency and stability of product performance. Secondly, the processing capacity of high-viscosity and high-solid content raw materials is enhanced. The synergistic effect of the double shafts can more effectively overcome the internal friction and viscous resistance between the raw materials, improve the stirring efficiency, shorten the processing time, and improve the production efficiency. Moreover, it is conducive to the rapid dispersion and refinement of particles. The strong shear force generated by the positive and negative double shafts can quickly break the agglomeration state of the raw material particles and make them evenly dispersed, thereby improving the microstructure of the diaphragm and improving the performance of the battery diaphragm. In addition, this mixing method has higher flexibility and adjustability. By changing the parameters such as the rotation direction, speed and phase difference of the double shafts, the stirring process can be accurately controlled to adapt to raw materials of different types and formulas and meet the diverse process requirements. Finally, a good mixing effect helps to reduce the waste of raw materials, improve the utilization rate of raw materials, and reduce production costs. At the same time, it can also reduce product quality problems caused by uneven mixing and improve the qualified rate and reliability of products.

[0014] In the utility model, the quantitative feeding technology can accurately measure and cut the materials required for the diaphragm, ensuring that the weight and mixing ratio of each diaphragm are within strict specifications. This accuracy can reduce material waste, improve material utilization, and thus reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a side view of the structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the outer wall structure of the tank body of the utility model;

[0018] Figure 4 It is a schematic diagram of the upper structure of the cover plate of the utility model.

[0019] In the figure: 1. tank body; 101. feed pipe; 102. liquid level sensor; 103. plunger pump; 104. pressure sensor; 105. flow meter; 106. electric regulating valve; 107. discharge pipe; 2. cover plate; 201. first driven shaft; 202. motor; 203. driving bevel gear; 204. intelligent control panel; 205. second driven shaft; 206. rotating blades; 207. rotating impeller; 208. first driven bevel gear; 209. second driven bevel gear; 210. mounting ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 4 , the utility model provides a technical solution: a blending device that is convenient for quantitative feeding, comprising a tank body 1, a cover plate 2 is installed on the top of the tank body 1 by screws;

[0022] The outer shell of the plunger pump 103 is installed on the outside of the tank body 1 by screws, the discharge end of the plunger pump 103 is provided with a pressure sensor 104, one end of the pressure sensor 104 is provided with a flow meter 105, the other end of the flow meter 105 is provided with an electric regulating valve 106, one end of the electric regulating valve 106 is provided with a feed pipe 101, the outer wall of the tank body 1 is provided with a discharge pipe 107, and a liquid level sensor 102 is installed on one side of the tank body 1 by screws.

[0023] In this embodiment, Figure 1 , Figure 2 and Figure 4 As shown, a motor 202 is installed on the top of the cover plate 2 by screws, one side of the motor 202 passes through the mounting ring 210, and an active bevel gear 203 is installed on the output shaft of one side of the motor 202 by bolts, a first driven bevel gear 208 is meshed above the active bevel gear 203, a second driven bevel gear 209 is meshed below the active bevel gear 203, a first driven shaft 201 is inserted in the middle of the first driven bevel gear 208, a second driven shaft 205 is installed below the second driven bevel gear 209, a rotating blade 206 is welded below the second driven shaft 205, and a rotating impeller 207 is welded below the first driven shaft 201. 2 is installed with an intelligent control panel 204 by screws, and the first driven bevel gear 208 forms a rotating structure through the driving bevel gear 203, and the first driven shaft 201 forms a rotating structure through the first driven bevel gear 208, and the rotating impeller 207 forms a rotating structure through the first driven shaft 201; the motor 202 rotates the driving bevel gear 203, the driving bevel gear 203 is meshed and connected with the first driven bevel gear 208, the first driven bevel gear 208 makes the first driven shaft 201 rotate left, and the first driven shaft 201 rotates the rotating impeller 207, driving the different raw materials inside to mix, so that the raw materials in the tank body 1 are mixed evenly.

[0024] In this embodiment, Figure 4As shown, the mounting ring 210 has a "U"-shaped ring shape, and circular rings are provided at both ends and the middle of the mounting ring 210, and the first driven shaft 201 passes through the interior of the second driven shaft 205; three circular rings are provided above the mounting ring 210, on which the driving bevel gear 203, the first driven bevel gear 208 and the second driven bevel gear 209 are respectively installed for fixing, the first driven shaft 201 is relatively thin and is a solid shaft, the second driven shaft 205 is relatively thick, and the middle part is a hollow shaft, which is convenient for realizing the rotation of the two shafts and mixing the internal raw materials.

[0025] In this embodiment, Figure 4 As shown, the second driven bevel gear 209 forms a rotating structure through the active bevel gear 203, and the second driven shaft 205 forms a rotating structure through the second driven bevel gear 209, and the rotating blade 206 forms a rotating structure through the second driven shaft 205; the motor 202 rotates the active bevel gear 203, the active bevel gear 203 rotates the second driven bevel gear 209 to the right, the second driven bevel gear 209 rotates the second driven shaft 205, and the second driven shaft 205 drives the rotating blade 206 to rotate, and the rotation of the forward and reverse double axes in different directions can make the material form a complex flow pattern in the mixing container, so that the raw materials of different components can be more fully and evenly distributed.

[0026] In this embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, one side of the intelligent control panel 204 is provided with a plurality of cable connections, and the intelligent control panel 204 is connected to the motor 202 and to the plunger pump 103, and the pressure sensor 104 is connected to the intelligent control panel 204 and to the flow meter 105 and to the intelligent control panel 204, and the electric regulating valve 106 is connected to the intelligent control panel 204 and to the liquid level sensor 102 and to the intelligent control panel 204; firstly, the liquid level sensor 102 is used to monitor the liquid level height in the raw material tank 1, when the liquid level is lower than the set lower limit value, the intelligent control panel 204 will send a signal to make the intelligent control panel 204 control the plunger pump 103, and the plunger pump 103 is used to accurately transport the raw material The intelligent control panel 204 controls the stroke and frequency of the plunger pump 103 according to the set parameters, thereby controlling the delivery amount of the raw materials. The pressure sensor 104 is used to monitor the pressure in the system. If the pressure exceeds the safe range, the intelligent control panel 204 will take corresponding measures, such as adjusting the opening of the electric control valve 106 or stopping the operation of related equipment. The flow meter 105 is used to measure the flow of the raw materials. The intelligent control panel 204 adjusts the flow of the raw materials by controlling the opening of the electric control valve 106 according to the predetermined formula and flow requirements to achieve quantitative mixing. The motor 202 is usually used to drive the stirring component to ensure that the raw materials are evenly distributed during the mixing process. The intelligent control panel 204 can control the operation of the motor 202 according to the set stirring speed and time.

[0027] In this embodiment, Figure 3 As shown, one side of the plunger pump 103 is provided with a plurality of pipe connections, and the plunger pump 103 is connected to the pressure sensor 104, and the pressure sensor 104 is connected to the flow meter 105, and the flow meter 105 is connected to the electric control valve 106; the inlet of the plunger pump 103 is connected through a pipe, and the pressure sensor 104 and the flow meter 105 are installed in sequence on the outlet pipe of the plunger pump 103. The pressure sensor 104 is used to monitor the pressure of the raw material transportation in the pipeline, and its installation position should be as close as possible to the outlet of the plunger pump 103 to accurately reflect the pressure at the output end of the pump. The flow meter 105 is installed immediately after the pressure sensor 104 to measure the flow rate of the raw material liquid. After the flow meter 105, the electric control valve 106 is installed. The electric control valve 106 is used to adjust the flow rate and pressure of the raw material in the pipeline according to the control requirements of the system, and to control or stop feeding.

[0028] In this embodiment, Figure 1 and Figure 2 As shown, the external structural dimensions of the lower end of the cover plate 2 are consistent with the internal structural dimensions of the upper end of the tank body 1; the external structural dimensions of the cover plate 2 are consistent with the internal structural dimensions of the tank body 1, which is convenient for fixing the parts above the cover plate 2 and for stably fixing the parts above.

[0029] The use method and advantages of the utility model: The blending device which is convenient for quantitative feeding, when in use, has the following working process:

[0030] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, first, the feed parameters are set on the intelligent control panel 204, and the intelligent control panel 204 controls the plunger pump 103, so that the plunger pump 103 transmits to the pressure sensor 104, the flow meter 105 and the electric regulating valve 106. The flow meter 105 is used to measure the flow of the raw material. The intelligent control panel 204 adjusts the flow of the raw material by controlling the opening of the electric regulating valve 106 according to the predetermined value and flow requirement to achieve quantitative. The raw material enters the tank body 1 through the feed pipe 101, and the liquid level sensor 102 inside the tank body 1 detects the rod and feeds back to the liquid level sensor 102. The liquid level sensor 102 feeds back to the intelligent control panel 204, so that the intelligent control panel 204 controls the electric regulating valve 106. Close to prevent raw materials from entering, the intelligent control panel 204 can control the operation of the motor 202 according to the set stirring speed and time, the motor 202 rotates the active bevel gear 203, the active bevel gear 203 is respectively engaged with the first driven bevel gear 208 and the second driven bevel gear 209, the first driven bevel gear 208 drives the first driven shaft 201 and the rotating impeller 207 to rotate to the left in turn, the second driven bevel gear 209 drives the second driven shaft 205 and the rotating blade 206 to rotate to the right in turn, so that the stirring component drives the raw materials of the tank body 1 to be evenly mixed, the mixed liquid is controlled by the pipeline and control valve connected to the discharge pipe 107, and additional pipelines and control valves are required to facilitate automatic discharge.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A blending device for convenient quantitative feeding, comprising a tank (1), characterized in that: A cover plate (2) is installed on the top of the tank body (1) by means of screws; The outer shell of a plunger pump (103) is mounted on the outside of the tank body (1) by means of screws, a pressure sensor (104) is mounted on the discharge end of the plunger pump (103), one end of the pressure sensor (104) is mounted on a flow meter (105), the other end of the flow meter (105) is mounted on an electric regulating valve (106), one end of the electric regulating valve (106) is mounted on a feed pipe (101), an outer wall of the tank body (1) is mounted on a discharge pipe (107), and a liquid level sensor (102) is mounted on one side of the tank body (1) by means of screws.

2. The blending device for convenient quantitative feeding according to claim 1, characterized in that: A motor (202) is mounted on the top of the cover plate (2) by means of screws, one side of the motor (202) passes through a mounting ring (210), a driving bevel gear (203) is mounted on an output shaft on one side of the motor (202) by means of bolts, a first driven bevel gear (208) is meshed on the top of the driving bevel gear (203), a second driven bevel gear (209) is meshed on the bottom of the driving bevel gear (203), a first driven shaft (201) is inserted in the middle of the first driven bevel gear (208), and a second driven bevel gear (209) is meshed on the bottom of the second driven bevel gear (209). A second driven shaft (205) is installed, a rotating blade (206) is welded below the second driven shaft (205), a rotating impeller (207) is welded below the first driven shaft (201), an intelligent control panel (204) is installed above the cover plate (2) by means of screws, the first driven bevel gear (208) forms a rotating structure through the driving bevel gear (203), the first driven shaft (201) forms a rotating structure through the first driven bevel gear (208), and the rotating impeller (207) forms a rotating structure through the first driven shaft (201).

3. The blending device for convenient quantitative feeding according to claim 2, characterized in that: The mounting ring (210) has a U-shaped shape, and circular rings are provided at both ends and the middle of the mounting ring (210), and the first driven shaft (201) passes through the interior of the second driven shaft (205).

4. The blending device for convenient quantitative feeding according to claim 2, characterized in that: The second driven bevel gear (209) forms a rotating structure through the driving bevel gear (203), and the second driven shaft (205) forms a rotating structure through the second driven bevel gear (209), and the rotating blade (206) forms a rotating structure through the second driven shaft (205).

5. The blending device for convenient quantitative feeding according to claim 2, characterized in that: A plurality of cable connections are provided on one side of the intelligent control panel (204), and the intelligent control panel (204) is connected to the motor (202) and the intelligent control panel (204) is connected to the plunger pump (103), and the pressure sensor (104) is connected to the intelligent control panel (204) and the flow meter (105) is connected to the intelligent control panel (204), and the electric regulating valve (106) is connected to the intelligent control panel (204) and the liquid level sensor (102) is connected to the intelligent control panel (204).

6. The blending device for convenient quantitative feeding according to claim 1, characterized in that: A plurality of pipeline connections are provided on one side of the plunger pump (103), and the plunger pump (103) is connected to the pressure sensor (104), the pressure sensor (104) is connected to the flow meter (105), and the flow meter (105) is connected to the electric regulating valve (106).

7. The blending device for convenient quantitative feeding according to claim 1, characterized in that: The external structural dimensions of the lower end of the cover plate (2) are consistent with the internal structural dimensions of the upper end of the tank body (1).

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