Automatic material conveying system of slurry mixing machine

Abstract

The utility model relates to an automatic material conveying system of a slurry mixing machine, the slurry mixing machine comprises a slurry mixing barrel, and the slurry mixing barrel is provided with a powder injection port; the automatic conveying system of the slurry mixing machine comprises a powder feeding device used for conveying powder to a slurry mixing barrel, and the powder feeding device comprises a storage bin and a pulse back flushing device; powder is stored in the storage bin, a discharge port of the storage bin communicates with the powder injection port, and an air outlet of the pulse back-blowing device communicates with the storage bin and is used for blowing compressed air into the storage bin. According to the powder feeding device, when the discharging port of the storage bin is communicated with the slurry mixing barrel, compressed air is blown into the storage bin through the pulse back-blowing device so as to increase the pressure in the storage bin, powder in the storage bin can enter the slurry mixing barrel under the action of air pressure, and therefore automatic feeding of the powder is completed; the labor intensity of field operators is greatly reduced, the automation level and the production efficiency of a slurry mixing workshop are improved, and the problems caused by manual powder feeding are effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slurry mixing, especially to a slurry mixing machine automatic material conveying system. BACKGROUND

[0002] Lithium battery is widely used in electric vehicles and energy storage industry due to its high energy density, long service life, good safety performance, less pollution and other advantages. In the production and manufacturing process of lithium battery, a plurality of powders and solvents need to be added in batches in the slurry mixing process. The traditional powder and liquid filling, especially in the trial production line involving frequent model change, mostly adopts manual feeding mode. Each time the material is fed, the slurry mixing barrel of the slurry mixing machine needs to be lowered down. When mixing one tank of slurry, the powder or solvent needs to be added multiple times in different time periods, which causes the slurry mixing barrel to be lifted and lowered multiple times, so that the operator needs to stop the machine and add material every certain period of time. This mode is complicated and laborious, has high labor intensity and low work efficiency. In addition, the consistency of the pole piece is an important factor affecting the performance of the battery, and the quality of the slurry is a key factor controlling the consistency of the pole piece. If manual feeding and unloading are used during slurry mixing, impurities in the environment will inevitably enter the slurry, and manual weighing will have more subjective factors, thereby reducing the stability of the slurry. In addition, the dust of the powder will pollute the environment and harm the health of the operator. SUMMARY

[0003] Therefore, in view of the many problems existing in the current manual feeding mode of slurry mixing, it is necessary to provide a slurry mixing machine automatic material conveying system.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The utility model provides a kind of slurry mixing machine automatic material conveying system, and the slurry mixing machine includes slurry mixing barrel, and slurry mixing barrel has powder filling port, and the slurry mixing machine automatic material conveying system includes powder feeding device for conveying powder to slurry mixing barrel, and the powder feeding device includes storage bin and pulse backflusher;Powder is stored in storage bin, and its discharge port is communicated with the powder filling port, and the gas outlet of the pulse backflusher is communicated with the storage bin, and it is used to blow compressed gas into the storage bin.

[0006] The utility model increases the pressure in the storage bin by setting powder feeding device and blowing compressed gas into the storage bin through pulse backflusher when the discharge port of the storage bin is communicated with the slurry mixing barrel, so that the powder in the storage bin can enter the slurry mixing barrel under the action of gas pressure, thereby completing automatic feeding of powder. The amount of powder in single feeding is controlled by controlling the time of compressed gas input, which greatly reduces the labor intensity of on-site operators, improves the automation level and production efficiency of slurry mixing workshop, reduces dust pollution and impurities in slurry, improves the stability of slurry, and effectively avoids the problems caused by manual feeding.

[0007] As a further improvement of the above-mentioned scheme of the utility model, the powder feeding device further comprises a suction mechanism for feeding the storage bin, the suction mechanism comprises a powder bin, a compressed air source, a vacuum generator and a suction hose; the powder bin stores powder; the gas outlet of the compressed air source is connected with the gas inlet of the vacuum generator, the vacuum port of the vacuum generator is communicated with the storage bin, one end of the suction hose is communicated with the storage bin, and the other end of the suction hose extends into the powder bin and is connected with a suction gun inserted into the powder.

[0008] As a further improvement of the above-mentioned scheme of the utility model, the pulse backflusher comprises a gas storage bag and a pulse solenoid valve; the gas outlet of the vacuum generator is communicated with the gas storage bag through the pulse solenoid valve, and the gas storage bag is communicated with the storage bin through the pulse solenoid valve.

[0009] As a further improvement of the above-mentioned scheme of the utility model, the powder bin comprises a plurality of supporting legs and a bin body, the bin body is connected with the supporting legs, a weighing sensor is arranged at the connecting position of the bin body and the supporting legs, a discharge port is arranged at the bottom of the bin body and a manual butterfly valve is arranged at the discharge port, a discharge port is arranged at the top of the bin body, the other end of the suction hose extends into the bin body from the discharge port, and a dust cloth bag is arranged at the discharge port.

[0010] As a further improvement of the above-mentioned scheme of the utility model, the powder feeding device further comprises a moving frame and a lifting driving unit, a plurality of rollers are arranged at the bottom of the moving frame, the storage bin is slidingly installed on the moving frame, and the lifting driving unit is used for driving the storage bin to lift on the moving frame.

[0011] As a further improvement of the above-mentioned scheme of the utility model, the automatic feeding system of the slurry mixer further comprises a solvent feeding device for feeding solvent to the slurry barrel; the slurry barrel is provided with a solvent feeding port; the solvent feeding device comprises a solvent tank and a screw pump, the solvent tank stores solvent and is provided with a solvent outlet at the bottom, the feeding port of the screw pump is communicated with the solvent outlet through a manual ball valve, the discharging port of the screw pump is communicated with the solvent feeding port, and a pressure sensor is arranged at the discharging port of the screw pump.

[0012] As a further improvement of the above-mentioned scheme of the utility model, the solvent feeding device further comprises a push-pull trolley one, the solvent tank and the screw pump are installed on the push-pull trolley one.

[0013] And / or, the solvent feeding device further comprises a stirring mechanism one for stirring the solvent in the solvent tank, the stirring mechanism one comprises a pneumatic motor and a stirring rod one, the pneumatic motor is installed at the top of the solvent tank, the stirring rod one is vertically arranged in the solvent tank and the top end of the stirring rod one is drivingly connected with the pneumatic motor through a coupling one, and a plurality of stirring paddles one are installed on the stirring rod one.

[0014] As a further improvement of the above-mentioned scheme of the present application, the slurry mixing machine automatic material conveying system further comprises a slurry transfer device, the slurry transfer device comprises a bag type magnetic filter, a diaphragm pump and a slurry transfer tank; the bottom of the slurry mixing barrel is provided with a slurry outlet, the slurry outlet is connected with the feed inlet of the diaphragm pump through the bag type magnetic filter, and the discharge outlet of the diaphragm pump is connected with the feed inlet of the slurry transfer tank.

[0015] As a further improvement of the above-mentioned scheme of the present application, the slurry transfer device further comprises a stirring mechanism two for stirring the slurry in the slurry transfer tank, the stirring mechanism two comprises a stirring motor and a stirring rod two, the stirring motor is installed at the top of the slurry transfer tank, the stirring rod two is vertically arranged in the slurry transfer tank and the top end of the stirring rod two is drivingly connected with the stirring motor through a coupling two, and a plurality of stirring paddles two are installed on the stirring rod two.

[0016] As a further improvement of the above-mentioned scheme of the present application, the slurry transfer device further comprises a filter mechanism; the filter mechanism comprises a push-pull trolley two, a filter core and a magnetic removal pipe, the filter core and the magnetic removal pipe are both installed on the push-pull trolley two through supports, the feed inlet of the filter core is communicated with the discharge outlet of the diaphragm pump, the discharge outlet of the filter core is communicated with the feed inlet of the magnetic removal pipe, the discharge outlet of the magnetic removal pipe is communicated with the slurry transfer tank, and a magnetic bar is installed in the magnetic removal pipe.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1. The powder feeding device is arranged, when the discharge outlet of the storage bin is communicated with the slurry mixing barrel, compressed gas is blown into the storage bin through the pulse backflusher to increase the pressure in the storage bin, the powder in the storage bin can enter the slurry mixing barrel under the action of the gas pressure, thereby completing automatic feeding of the powder, the amount of powder in single feeding can be controlled by controlling the time of feeding of the compressed gas, the labor intensity of the on-site operator is greatly reduced, the automation level and production efficiency of the slurry mixing workshop are improved, the impurities in the slurry are reduced, the stability of the slurry is improved, and the problems caused by manual powder feeding are effectively avoided.

[0019] 2. The solvent feeding device is arranged, when the discharge outlet of the solvent tank is communicated with the slurry mixing barrel, the solvent in the solvent tank is pumped into the slurry mixing barrel through the screw pump, thereby completing automatic feeding of the solvent, the amount of solvent in single feeding can be controlled, the labor intensity of the on-site operator is greatly reduced, the automation level and production efficiency of the slurry mixing workshop are improved, the stability of the slurry is improved, and the problems caused by manual feeding are effectively avoided.

[0020] 3.The utility model discloses a slurry transfer device is set up, and the slurry of the slurry mixing machine is filtered and then is temporarily stored after the slurry mixing is completed, guarantees the performance stability of the slurry output, guarantees the stable production of next coating process;The coating process has its own feeding system, and when the slurry in the coating process feeding system is insufficient, the slurry mixing process needs to supplement the slurry in time, the slurry mixing process production time is long, and the slurry output is large, and coating cannot consume in real time, and the slurry transfer device can be temporarily stored, and when the slurry liquid level of the coating feeding system is low, the slurry can be supplemented in the coating feeding system with appropriate flow, and the process parameters of the coating process will not be affected. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structure schematic view of a slurry mixing machine automatic feeding system is provided for the utility model embodiment;

[0022] Figure 2 A structure schematic view of a powder feeding device in a slurry mixing machine automatic feeding system is provided for the utility model embodiment;

[0023] Figure 3 A structure schematic view of a powder bin in a slurry mixing machine automatic feeding system is provided for the utility model embodiment;

[0024] Figure 4 A structure schematic view of a solvent feeding device in a slurry mixing machine automatic feeding system is provided for the utility model embodiment;

[0025] Figure 5 A partial structure schematic view of a slurry transfer device in a slurry mixing machine automatic feeding system is provided for the utility model embodiment.

[0026] Reference signs: 1, slurry mixing barrel; 2, storage bin; 3, vacuum generator; 4, suction hose; 5, suction gun; 6, air storage bag; 7, pulse solenoid valve; 8, support leg; 9, bin body; 10, weighing sensor; 11, manual butterfly valve; 12, dust cloth bag; 13, moving frame; 14, lifting drive unit; 15, solvent tank; 16, screw pump; 17, manual ball valve I; 18, pressure sensor; 19, push-pull trolley I; 20, pneumatic motor; 21, stirring rod I; 22, coupling I; 23, stirring paddle I; 24, bag type magnetic filter; 25, diaphragm pump; 26, slurry transfer tank; 27, stirring motor; 28, stirring rod II; 29, stirring paddle II; 30, push-pull trolley II; 31, filter element; 32, coupling II; 33, demagnetizing pipe; 34, control box I; 35, pneumatic butterfly valve I; 36, solenoid valve I; 37, quick-mount flange I; 38, powder feeding pipe; 39, quick-mount flange II; 40, solenoid valve II; 41, filter pressure reducing valve; 42, solenoid valve III; 43, control box II; 44, perspective window I; 45, liquid level gauge I; 46, perspective window II; 47, vacuum suction port; 48, liquid level gauge II; 49, pressure gauge; 50, manual ball valve II; 51, solvent feeding pipe; 52, pneumatic butterfly valve II; 53, manual discharge valve. DETAILED DESCRIPTION

[0027] In order to facilitate the understanding of the present application, the present application will be described more fully below in conjunction with specific embodiments. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0029] Reference Figure 1 The present embodiment proposes an automatic material conveying system of a slurry mixing machine, which is used for automatically conveying powder to a slurry mixing barrel 1 of the slurry mixing machine, and can also be used for automatically conveying solvent to the slurry mixing barrel 1 of the slurry mixing machine, and can also transfer slurry after the slurry mixing barrel 1 mixes the slurry. The automatic material conveying system of the slurry mixing machine of the present embodiment comprises a powder feeding device, and can also comprise a solvent feeding device and a slurry transfer device.

[0030] In the present embodiment, a powder feeding port and a solvent feeding port are arranged on the side wall of the slurry mixing barrel 1 of the slurry mixing machine, and a slurry outlet is arranged at the bottom of the slurry mixing barrel 1.

[0031] The powder feeding device is used for quantitatively feeding powder into the slurry mixing barrel 1.Figure 2 The powder feeding device of the embodiment comprises a storage bin 2 and a pulse backflusher, and can further comprise a suction mechanism, a moving frame 13, a lifting driving unit 14 and a control box 34.

[0032] The storage bin 2 is slidably installed on the moving frame 13 through a mounting frame, and the lifting driving unit 14 is installed on the moving frame 13 and used to drive the storage bin 2 to lift on the moving frame 13, so as to adapt to the powder feeding work of the slurry mixer with different heights. In the embodiment, the lifting driving unit 14 can adopt a chain hoist. In order to facilitate the movement of the storage bin 2, a plurality of rollers are installed on the bottom of the moving frame 13. The sidewall of the storage bin 2 is provided with an inlet, the bottom of the storage bin 2 is conical, and the outlet of the storage bin 2 is arranged at the conical bottom, so as to feed the powder in the storage bin 2 to the slurry barrel 1. The outlet of the storage bin 2 is connected with a powder feeding pipe 38 through a quick flange 37, and the powder feeding pipe 38 is sealingly connected with the powder injection port of the slurry barrel 1. The outlet of the storage bin 2 is further connected with a pneumatic butterfly valve 35, and the inlet and outlet of the pneumatic butterfly valve 35 are connected with an electromagnetic valve 36. The air path of the pneumatic butterfly valve 35 is controlled by the electromagnetic valve 36, so as to control the opening and closing of the pneumatic butterfly valve 35.

[0033] The suction mechanism is used to feed the powder to the storage bin 2. In the embodiment, the suction mechanism comprises a powder bin, a compressed air source, a vacuum generator 3 and a suction hose 4. Figure 3 In the embodiment, the powder bin comprises a bin body 9 and four supporting legs 8, the bin body 9 is installed on the four supporting legs 8, and a weighing sensor 10 is installed at the connection between each supporting leg 8 and the bin body 9. The weight of the powder in the bin body 9 can be accurately measured through the four weighing sensors 10. The top of the bin body 9 is provided with a bin cover for sealing, and the bin cover is provided with an outlet. The bottom of the bin body 9 is conical, and the conical bottom is provided with a discharge port. The discharge port is connected with a manual butterfly valve 11 through a flange. The opening and closing of the discharge port is controlled by the manual butterfly valve 11, and the bin body 9 is cleaned by manually opening the discharge port. One end of the suction hose 4 is sealingly connected with the inlet of the storage bin 2 through a quick flange 39, and the inlet of the storage bin 2 is further connected with a pneumatic butterfly valve 52. The inlet and outlet of the pneumatic butterfly valve 52 are connected with an electromagnetic valve 40, and the opening and closing of the pneumatic butterfly valve 52 is controlled by the electromagnetic valve 40. The other end of the suction hose 4 penetrates the outlet of the bin cover and extends into the bin body 9, and the end is connected with a suction gun 5 inserted into the powder. In order to prevent the powder from leaking, a dust cloth bag 12 is connected at the outlet of the bin cover. The vacuum generator 3 is installed on the top of the storage bin 2, and the vacuum port of the vacuum generator 3 is communicated with the storage bin 2. The outlet of the compressed air source is connected with a filter pressure reducing valve 41, and the outlet of the filter pressure reducing valve 41 is connected with the inlet of the vacuum generator 3 through an electromagnetic valve 42.

[0034] The structure of the suction mechanism can first feed the powder into the bin 9, and the weight of the powder in the bin 9 can be obtained in real time through the weighing sensor 10; the electromagnetic valve one 36 controls the pneumatic butterfly valve one 35 to close the discharge port of the storage bin 2, and then the electromagnetic valve two 40 and the electromagnetic valve three 42 are powered on, so that the suction hose 4 communicates the storage bin 2 with the bin 9 and the vacuum generator 3 with the compressed air source, the vacuum generator 3 is started to perform vacuumization on the storage bin 2, and under the action of negative pressure, the powder in the bin 9 enters the storage bin 2 through the suction gun 5 and the suction hose 4; the weight difference of the bin 9 before and after feeding is obtained through the weighing sensor 10, so as to calculate the feeding amount of the powder and the consumption of the powder, and the on-off of the suction is controlled. In order to prevent the powder from entering the vacuum port when the powder is fed into the storage bin 2, the vacuum port is arranged above the feeding port of the storage bin 2, and a powder filter is arranged between the vacuum port and the feeding port of the storage bin 2.

[0035] The pulse back blower is used to blow compressed gas into the storage bin 2 to transport the powder in the storage bin 2 to the mixing barrel 1 along the powder feeding pipe 38. In combination with the drawings, in the embodiment, the pulse back blower includes a gas storage bag 6 and a pulse electromagnetic valve 7, both of which are installed at the top end of the storage bin 2, the gas storage bag 6 is connected with the pulse electromagnetic valve 7, the pulse electromagnetic valve 7 communicates with the gas outlet of the vacuum generator 3 and the storage bin 2, and through controlling the pulse electromagnetic valve 7, the gas storage bag 6 can be communicated with the gas outlet of the vacuum generator 3 to store the compressed gas generated by the vacuum generator 3 in the gas storage bag 6, or the gas storage bag 6 can be communicated with the storage bin 2 to blow the compressed gas into the storage bin 2. When the vacuum generator 3 performs vacuumization on the storage bin 2, the pulse electromagnetic valve 7 is controlled to communicate the gas outlet of the vacuum generator 3 with the gas storage bag 6, so as to store the compressed gas in the gas storage bag 6.

[0036] The above structure of the pulse back blower, when the powder needs to be fed into the mixing barrel 1, the electromagnetic valve one 36 is powered on to open the pneumatic butterfly valve one 35, the electromagnetic valve two 40 is powered off, the powder feeding pipe 38 communicates the storage bin 2 with the mixing barrel 1, the pulse electromagnetic valve 7 is controlled to communicate the gas storage bag 6 with the storage bin 2, so that the compressed gas in the gas storage bag 6 enters the storage bin 2 to increase the pressure in the storage bin 2, and the powder in the storage bin 2 falls into the mixing barrel under the action of its own gravity and the high pressure of the compressed gas. In addition, the powder attached to the powder filter on the upper part of the storage bin 2 is also blown off and enters the mixing barrel 1 along the powder feeding pipe 38.

[0037] The control box one 34 is installed on the storage bin 2, and the control box one 34 is used to control the working of the electromagnetic valve one 36, the electromagnetic valve two 40 and the electromagnetic valve three 42, the electromagnetic valve two 40 controls the on-off of the air source, and then controls the action of the vacuum generator.

[0038] The solvent feeding device is used for feeding solvent into the mixing tank 1, which is combined with Figure 4 The solvent feeding device of the embodiment comprises a solvent tank 15 and a screw pump 16, and can further comprise a push-pull trolley 1, a stirring mechanism 1 and a control box 2.

[0039] The bottom of the solvent tank 15 is mounted on the push-pull trolley 1 by multiple supporting legs, so as to facilitate the movement of the solvent tank 15. The top end of the solvent tank 15 is provided with a perspective window 1, and a liquid level gauge 1 is further mounted on the solvent tank 15. The inside of the solvent tank 15 can be observed through the perspective window 1, and the amount of solvent in the solvent tank 15 can be obtained in real time through the liquid level gauge 1. Multiple sample ports are provided on the sidewall of the solvent tank 15, through which solvent is injected into the solvent tank 15. The bottom of the solvent tank 15 is provided with a solvent outlet.

[0040] The stirring mechanism 1 is used for stirring the solvent in the solvent tank 15 to prevent the solvent from settling. Specifically, the stirring mechanism 1 comprises a pneumatic motor 20 and a stirring rod 1, the pneumatic motor 20 is mounted on the top of the solvent tank 15, the stirring rod 1 is vertically arranged in the solvent tank 15 and the top end thereof is drivingly connected with the pneumatic motor 20 through a coupling 1, and multiple stirring paddles 1 are mounted on the stirring rod 1.

[0041] The screw pump 16 is mounted on the push-pull trolley 1, the feed inlet of the screw pump 16 is connected with one end of a manual ball valve 1 through a metal pipeline, the other end of the manual ball valve 1 is communicated with the solvent outlet through a metal pipeline, the discharge outlet of the screw pump 16 is sealingly communicated with the solvent feeding port through a solvent feeding pipe 51, and a pressure sensor 18 is arranged at the discharge outlet of the screw pump 16.

[0042] The control box 2 is mounted on the push-pull trolley 2, which is used for controlling the action of the motor of the screw pump. The action of the motor can change the conveying flow of the screw pump 16 and whether to stop conveying solvent; at the same time, the detection signals of the pressure sensor 18 and the liquid level gauge 1 are transmitted to the control box 2 for feedback calculation, when the pipeline pressure is too large or the feeding amount is sufficient, the motor of the screw pump 16 stops acting, etc.

[0043] The above structure of the solvent feeding device is set, when conveying solvent into the mixing tank 1, the manual ball valve 1 is manually opened first, and the screw pump 16 is started to pump the solvent in the solvent tank 15 into the mixing tank 1, and the pressure sensor 18 detects the real-time pressure in the conveying pipeline.

[0044] The pulp transfer device is used for buffering the mixed pulp in the mixing tank 1, and conveying the pulp to the coating workshop feeding system through the pulp transfer device. Combined with Figure 5 In the embodiment, the pulp transfer device comprises a pulp transfer tank 26, a filtering mechanism and a stirring mechanism 2.

[0045] The bottom of the slurry transfer tank 26 is provided with a slurry discharge port, and a manual discharge valve 53 is installed at the slurry discharge port. A pipeline can be connected to the manual discharge valve 53 to transport the slurry to a coating workshop feeding system. The top of the slurry transfer tank 26 is provided with a second perspective window 46 and a vacuum port 47. The slurry transfer tank 26 is also provided with a second liquid level gauge 48. The condition of the slurry in the slurry transfer tank 26 can be observed through the second perspective window 46. The amount of slurry in the slurry transfer tank 26 can be obtained in real time through the second liquid level gauge 48. The slurry transfer tank 26 is vacuumed through the vacuum port 47 to defoam the slurry.

[0046] The second stirring mechanism includes a stirring motor 27 and a second stirring rod 28. The stirring motor 27 is installed at the top of the slurry transfer tank 26. The second stirring rod 28 is vertically arranged in the slurry transfer tank 26 and the top end thereof is drivingly connected to the stirring motor 27 through a second coupling 32. A plurality of second stirring paddles 29 are installed on the second stirring rod 28.

[0047] The filter element 31 and the magnetic removal pipe 33 are both installed on the second push-pull trolley 30 through brackets. The inlet of the filter element 31 is communicated with the outlet of the diaphragm pump 25 through a pipeline, and the outlet thereof is communicated with the inlet of the magnetic removal pipe 33 through a pipeline. A pressure gauge 49 is arranged at the outlet of the filter element 31. The outlet of the magnetic removal pipe 33 is communicated with the slurry transfer tank 26 through a pipeline. A magnetic rod is installed in the magnetic removal pipe 33. The inlet of the diaphragm pump 25 is communicated with the slurry outlet of the slurry mixing barrel 1 through the bag-type magnetic filter 24. A second manual ball valve 50 is arranged at the slurry outlet of the slurry mixing barrel 1. In this embodiment, the bag-type magnetic filter 24 is used to screen large-particle raw materials (undispersed agglomerates), dust, fibers, metal scraps and other impurities in the slurry. The filtering precision of the filter element 31 is higher than that of the bag-type magnetic filter 24. The filter element 31 also screens the large-particle raw materials, dust, fibers, metal scraps and other impurities in the slurry.

[0048] The above structure of the slurry transfer device is set. When the slurry mixing machine completes the slurry mixing work, the second manual ball valve 50 is first opened, and the diaphragm pump 25 is started. The slurry in the slurry mixing barrel 1 is first screened by the bag-type magnetic filter 24. After the secondary filtration and iron removal by the filter element 31 and the magnetic removal pipe 33, respectively, the slurry enters the slurry transfer tank 26 for temporary storage. The second stirring mechanism is used to stir the slurry in the slurry transfer tank 26 to prevent the slurry from settling.

[0049] The purpose of the slurry transfer device is to ensure the performance stability of the slurry output by the slurry mixing process and to ensure the stable production of the next coating process. The coating process has its own feeding system, and when the slurry in the coating process feeding system is insufficient, the slurry mixing process needs to supplement the slurry in time. If the slurry is directly discharged from the slurry mixing process in real time to the coating feeding system, the flow fluctuation is large, which will affect the real-time area density of the coating process, and the impurities in the slurry that are not sieved will also cause abnormal coating. Moreover, the slurry mixing process has a long production time and produces a large amount of slurry, which cannot be consumed in real time by the coating process and needs to be temporarily stored. Through the slurry transfer device, when the slurry level in the coating feeding system is low, the appropriate flow can be discharged into the coating feeding system to supplement the slurry, which will not affect the process parameters of the coating process. In addition, the directly produced slurry must be filtered to remove the magnetic field before being used in the coating process. The purpose of stirring and vacuumizing is to prevent defects such as precipitation and air bubbles in the slurry during temporary storage, which will affect the coating process.

[0050] It should be noted that when a component is referred to as being "mounted on" another component, it can be directly on the other component or there can be a middle component. When a component is referred to as being "disposed on" another component, it can be directly disposed on the other component or there can be a middle component. When a component is referred to as being "fixed on" another component, it can be directly fixed on the other component or there can be a middle component.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing the specific embodiments only and is not intended to be limiting. As used in this document, the singular forms "a," "an," and "the" include their plural referents unless the context clearly dictates otherwise.

[0052] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but it should be considered that any combination of the technical features is within the scope of the present application as long as the combination does not cause contradiction.

[0053] The above-described embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as limiting the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. An automatic material feeding system for a slurry mixer, said slurry mixer comprising a slurry mixing tank (1) having a powder material feeding port, characterized in that, The automatic feeding system of the slurry mixer comprises a powder feeding device for feeding powder to the slurry mixing barrel (1), the powder feeding device comprises a powder storage bin (2) and a pulse back-blower, the powder storage bin (2) stores powder and its discharge port is communicated with the powder feeding port, and the outlet of the pulse back-blower is communicated with the powder storage bin (2) and is used for blowing compressed gas into the powder storage bin (2).

2. The automatic material conveying system of the slurry mixer according to claim 1, wherein The powder feeding device further comprises a suction mechanism for feeding the powder storage bin (2), the suction mechanism comprises a powder bin, a compressed gas source, a vacuum generator (3) and a suction hose (4), the powder bin stores powder, the outlet of the compressed gas source is connected with the inlet of the vacuum generator (3), the vacuum port of the vacuum generator (3) is communicated with the powder storage bin (2), one end of the suction hose (4) is communicated with the powder storage bin (2), and the other end of the suction hose (4) extends into the powder bin and is connected with a suction gun (5) inserted into the powder.

3. The automatic material conveying system of the slurry mixer according to claim 2, wherein, The pulse back-blower comprises a gas storage bag (6) and a pulse electromagnetic valve (7), the outlet of the vacuum generator (3) is communicated with the gas storage bag (6) through the pulse electromagnetic valve (7), and the gas storage bag (6) is communicated with the powder storage bin (2) through the pulse electromagnetic valve (7).

4. The automatic material conveying system of the slurry mixer according to claim 2, wherein The powder bin comprises a plurality of legs (8) and a bin body (9), the bin body (9) is connected with the plurality of legs (8), a weighing sensor (10) is arranged at the connection position of the bin body (9) and the legs (8), a discharge port is arranged at the bottom of the bin body (9) and a manual butterfly valve (11) is arranged at the discharge port, an outlet is arranged at the top of the bin body (9), the other end of the suction hose (4) extends into the bin body (9) from the outlet, and a dust cloth bag (12) is arranged at the outlet.

5. The automatic material conveying system of the slurry mixer according to claim 1, wherein The powder feeding device further comprises a moving frame (13) and a lifting driving unit (14), a plurality of rollers are arranged at the bottom of the moving frame (13), the powder storage bin (2) is slidingly arranged on the moving frame (13), and the lifting driving unit (14) is used for driving the powder storage bin (2) to lift on the moving frame (13).

6. The automatic material conveying system of the slurry mixer according to claim 1, wherein The automatic feeding system of the slurry mixer further comprises a solvent feeding device for feeding solvent to the slurry mixing barrel (1), the slurry mixing barrel (1) is provided with a solvent feeding port, the solvent feeding device comprises a solvent tank (15) and a screw pump (16), the solvent tank (15) stores solvent and is provided with a solvent outlet at the bottom, the inlet of the screw pump (16) is communicated with the solvent outlet through a manual ball valve (17), the outlet of the screw pump (16) is communicated with the solvent feeding port, and a pressure sensor (18) is arranged at the outlet of the screw pump (16).

7. The automatic material conveying system of the slurry mixer according to claim 6, wherein The solvent feeding device further comprises a push-pull trolley (19), the solvent tank (15) and the screw pump (16) are arranged on the push-pull trolley (19). And / or, the solvent feeding device further comprises a stirring mechanism I for stirring the solvent in the solvent tank (15), the stirring mechanism I comprises a pneumatic motor (20) and a stirring rod I (21), the pneumatic motor (20) is installed on the top of the solvent tank (15), the stirring rod I (21) is vertically arranged in the solvent tank (15) and the top end thereof is drivingly connected with the pneumatic motor (20) through a coupling I (22), and a plurality of stirring paddles I (23) are installed on the stirring rod I (21).

8. The automatic material conveying system of the slurry mixer according to claim 1, wherein The automatic feeding system of the slurry mixer further comprises a slurry transfer device, the slurry transfer device comprises a bag type magnetic filter (24), a diaphragm pump (25) and a slurry transfer tank (26), the bottom of the slurry mixing barrel (1) is provided with a slurry outlet, the slurry outlet is connected with the inlet of the diaphragm pump (25) through the bag type magnetic filter (24), and the outlet of the diaphragm pump (25) is connected with the inlet of the slurry transfer tank (26).

9. The automatic material conveying system of the slurry mixer according to claim 8, wherein The slurry transfer device further comprises a stirring mechanism II for stirring the slurry in the slurry transfer tank (26), the stirring mechanism II comprises a stirring motor (27) and a stirring rod II (28), the stirring motor (27) is installed on the top of the slurry transfer tank (26), the stirring rod II (28) is vertically arranged in the slurry transfer tank (26) and the top end thereof is drivingly connected with the stirring motor (27) through a coupling II (32), and a plurality of stirring paddles II (29) are installed on the stirring rod II (28).

10. The automatic material conveying system of the slurry mixer according to claim 8, wherein The slurry transfer device further comprises a filtering mechanism, the filtering mechanism comprises a push-pull trolley II (30), a filter element (31) and a magnetic removal pipe (33), the filter element (31) and the magnetic removal pipe (33) are both installed on the push-pull trolley II (30) through a support, the inlet of the filter element (31) is communicated with the outlet of the diaphragm pump (25) and the outlet thereof is communicated with the inlet of the magnetic removal pipe (33), the outlet of the magnetic removal pipe (33) is communicated with the slurry transfer tank (26), and a magnetic rod is installed in the magnetic removal pipe (33).

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