Slurry stirring device

Abstract

The utility model relates to a slurry stirring device, which comprises a stirring machine unit, the discharging unit comprises a discharging pipeline and a first pump, one end of the discharging pipeline is connected with the stirrer body, and the first pump is arranged on the discharging pipeline; the finished product collecting unit comprises a tank body, and the other end of the discharging pipeline is connected with the tank body; the detection unit comprises a first detection device, a second detection device and a third detection device, and the first detection device is connected with the stirrer body so as to detect the liquid level in the stirrer body. According to the utility model, automatic judgment of discharging can be realized, and corresponding detection devices are arranged at different positions, so that the detection accuracy is effectively improved; on the whole, the automation degree of the slurry stirring device is effectively improved, and in addition, the discharging judgment efficiency and accuracy are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry preparation, in particular to a slurry stirring device. Background Art

[0002] During the lithium battery slurry preparation process, the prepared slurry needs to be discharged from the mixer into the finished product tank and allowed to rest for defoaming. The specific workflow includes: first, automatically controlling the opening of the finished product tank feed valve and the mixer discharge valve, and the diaphragm pump air inlet valve, so that the slurry can enter the finished product tank. When the mixer zero liquid level alarm and the diaphragm pump abnormal sound are triggered, the discharge is stopped. On-site staff lower the mixer container to observe whether the slurry has been discharged. If not, the container is raised to continue discharging. This cycle repeats until the mixer container is lowered and the operator observes the inside of the mixer container to determine whether the discharge is complete.

[0003] However, the above method has the following defects: since the slurry will adhere to the liquid level sensor during the stirring and dispersing process, the liquid level sensor is often inaccurate, making it difficult to accurately grasp the liquid level inside the mixer; and the existing method is inefficient, and the time required to judge whether the discharge is completed is long; in addition, the lifting mechanism used to drive the mixer container is used frequently, which affects its service life; and, during the lowering process of the mixer container, there is also a safety hazard of collision to on-site workers. Utility Model Content

[0004] To this end, the technical problem to be solved by the present invention is to overcome the deficiencies in the existing technology and provide a slurry stirring device that can solve the problems of low efficiency of manual judgment and potential safety hazards in the existing technology, thereby effectively improving the discharge of slurry in the mixer and the efficiency of slurry collection, and improving the accuracy of discharge judgment.

[0005] In order to solve the above technical problems, the utility model provides a slurry stirring device, comprising:

[0006] A blender unit comprising a blender body;

[0007] a discharging unit comprising a discharging pipeline and a first pump, one end of the discharging pipeline being connected to the mixer body, and the first pump being arranged in the discharging pipeline;

[0008] a finished product collection unit, comprising a tank body, the other end of the discharge pipeline being connected to the tank body;

[0009] a detection unit comprising a first detection device, a second detection device, and a third detection device, wherein the first detection device is connected to the blender body to detect the liquid level in the blender body; the second detection device is connected to the discharge pipe and the first pump to detect the pressure at both ends of the first pump; and the third detection device is connected to the tank body to detect the weight of the contents of the tank body;

[0010] A control unit is connected to the mixer unit, the discharging unit, the finished product collecting unit and the detection unit.

[0011] In one embodiment of the present invention, the second detection device includes a first pressure sensor and a second pressure sensor, the first pressure sensor is arranged at the inlet end of the first pump, and the second pressure sensor is arranged at the outlet end of the first pump.

[0012] In one embodiment of the present invention, the first pump is a diaphragm pump.

[0013] In one embodiment of the present invention, the discharging unit further includes a demagnetization device, which is disposed in the discharging pipeline and is located between the second detection device and the tank body.

[0014] In one embodiment of the present invention, the discharging unit further includes a pipeline cleaning device, and the pipeline cleaning device is connected to the discharging pipeline.

[0015] In one embodiment of the present invention, the area of ​​the discharge pipeline close to the tank body is a discharge cleaning pipeline, and the pipeline cleaning device is connected to the cleaning pipeline.

[0016] In one embodiment of the present invention, the pipeline cleaning device includes a ball pushing cleaning assembly, which includes a ball pushing pipeline, a driving member and an elastic projectile. One end of the ball pushing pipeline is connected to the driving member, and the other end of the ball pushing pipeline is connected to the discharge cleaning pipeline. The elastic projectile is driven by the driving member to move in the ball pushing pipeline and the discharge cleaning pipeline.

[0017] In one embodiment of the present invention, a ball pushing valve is provided on one end of the ball pushing pipeline close to the discharge cleaning pipeline.

[0018] In one embodiment of the present invention, the blender unit further comprises a vacuum cover, and the vacuum cover is assembled on the blender body.

[0019] In one embodiment of the present invention, the mixer unit further comprises a support frame, and the mixer body is mounted on the support frame.

[0020] The above technical solution of the utility model has the following advantages compared with the prior art:

[0021] The slurry stirring device described in the present invention includes a mixer unit, a discharge unit, a finished product collection unit, and a detection unit. The mixer unit is connected to the finished product collection unit via the discharge unit. The detection unit includes a first detection device, a second detection device, and a third detection device. The first detection device can monitor the liquid level of the mixer body to determine the liquid level of the slurry in the mixer body. The second detection device can monitor the pressure at both ends of the first pump in real time to obtain the discharge status of the slurry in the discharge unit. The third detection device can monitor the content quality of the tank of the finished product collection unit to obtain the weight information of the slurry after stirring. The present invention realizes automatic determination of discharge by providing the detection unit and the control unit, and provides corresponding detection devices at different positions, thereby effectively improving the accuracy of detection. Overall, the present invention effectively improves the degree of automation of the slurry stirring device, improves the efficiency and accuracy of discharge determination, and effectively avoids the first pump from idling for a long time due to negligence of the operator, thereby effectively avoiding damage to the first pump. In addition, by adopting the utility model, the operator does not need to repeatedly lift and lower the container to observe the slurry condition, thereby reducing the operator's repeated lifting operations and avoiding production safety hazards such as bumps and injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings, wherein.

[0023] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present utility model.

[0024] Figure 2 It is a partial structural diagram of the mixer unit of the preferred embodiment of the present utility model.

[0025] Figure 3 It is a partial structural diagram of the first pump and the second detection device in a preferred embodiment of the present utility model.

[0026] Figure 4 It is a partial structural schematic diagram of a pipeline cleaning device according to a preferred embodiment of the present utility model.

[0027] Explanation of the reference numerals in the specification: 10. Mixer body; 11. First detection device; 12. Vacuum cover; 13. Support frame; 20. Discharge pipeline; 201. Discharge cleaning pipeline; 21. First pump; 22. Second detection device; 220. First pressure sensor; 221. Second pressure sensor; 30. Tank body; 31. Third detection device; 40. Demagnetization device; 60. Ball pushing pipeline; 61. Driving member; 62. Ball pushing valve. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0029] Reference Figure 1 As shown, the present invention discloses a slurry stirring device, comprising a stirrer unit, wherein the stirrer unit comprises a stirrer body 10, and the stirrer body 10 is used to stir the slurry;

[0030] The slurry mixer device also includes a discharge unit, which includes a discharge pipeline 20 and a first pump 21. One end of the discharge pipeline 20 is connected to the mixer body 10. The first pump 21 is arranged in the discharge pipeline 20 to control the on-off of the discharge pipeline 20.

[0031] The slurry mixer device further includes a finished product collection unit, which includes a tank body 30 . The other end of the discharge pipe 20 is connected to the tank body 30 , and the slurry after mixing is collected through the tank body 30 .

[0032] In order to accurately judge whether the discharging of the slurry mixer device is completed, the slurry mixer device further includes a detection unit, which includes a first detection device 11, a second detection device 22 and a third detection device 31.

[0033] Wherein, the first detection device 11 is connected to the mixer body 10 to detect the liquid level in the mixer body 10;

[0034] The second detection device 22 is connected to the discharge pipeline 20 and the first pump 21 to detect the pressure at both ends of the first pump 21;

[0035] The third detection device 31 is connected to the tank body 30 to detect the weight of the contents of the tank body 30;

[0036] The slurry mixer device also includes a control unit, which is connected to the mixer unit, the discharging unit, the finished product collection unit and the detection unit. The control unit can collect signals from the first detection device 11, the second detection device 22 and the third detection device 31, and control the discharging unit and the finished product collection unit to cooperate with each other to achieve slurry collection.

[0037] It can be seen from this that the slurry stirring device to be protected by the present invention includes a mixer unit, a discharge unit, a finished product collection unit and a detection unit. The mixer unit is connected to the finished product collection unit through the discharge unit. The detection unit includes a first detection device, a second detection device and a third detection device. The first detection device can monitor the liquid level of the mixer body to determine the liquid level of the slurry in the mixer body. The second detection device can monitor the pressure at both ends of the first pump in real time to obtain the discharge status of the slurry in the discharge unit. The third detection device can monitor the content quality of the tank body of the finished product collection unit to obtain the weight information of the slurry after stirring. The present invention realizes automatic judgment of discharge by setting the detection unit and the control unit, and sets corresponding detection devices at different positions, thereby effectively improving the accuracy of detection. From the overall point of view, the automation degree of the slurry stirring device is effectively improved, the efficiency and accuracy of discharge judgment are improved, and the first pump is effectively prevented from idling for a long time due to negligence of the operator, thereby effectively avoiding damage to the first pump. In addition, by adopting the slurry mixer device of the present invention, operators do not need to repeatedly lift and lower the container to observe the slurry condition, thereby reducing the operators' repeated lifting and lowering operations and avoiding production safety hazards such as bumps and injuries.

[0038] As a preferred embodiment, the first detection device 11 includes a liquid level sensor, which is installed at the bottom of the mixer body 10. In this way, when the slurry level in the mixer body 10 is low, the liquid level sensor can be triggered.

[0039] Furthermore, the second detection device 22 includes a first pressure sensor 220 and a second pressure sensor 221. The first pressure sensor 220 is disposed at the inlet end of the first pump 21, and the second pressure sensor 221 is disposed at the outlet end of the first pump 21. Thus, the first pressure sensor 220 and the second pressure sensor 220 can respectively monitor the pressure at both ends of the first pump 21, collect pressure values, and transmit them to the control unit.

[0040] As a preferred embodiment, the first pump 21 is a diaphragm pump.

[0041] In order to demagnetize the slurry and reduce the impurity content in the slurry, the discharge unit further includes a demagnetization device 40 , which is disposed in the discharge pipeline 20 and located between the second detection device 22 and the tank body 30 .

[0042] Specifically, the demagnetization device 40 is installed between the second pressure sensor 220 and the tank body 30 .

[0043] The discharging unit further includes a pipeline cleaning device, which is connected to the discharging pipeline 20 , so that the residual slurry in the discharging pipeline 20 can be cleaned by the pipeline cleaning device to avoid slurry accumulation.

[0044] As a preferred embodiment, the area of ​​the discharge pipeline 20 close to the tank body 30 is a discharge cleaning pipeline 201 , and the pipeline cleaning device is connected to the cleaning pipeline 201 .

[0045] Specifically, the pipeline cleaning device includes a ball-pushing cleaning assembly, which includes a ball-pushing pipeline 60, a driving member 61 and an elastic projectile. One end of the ball-pushing pipeline 60 is connected to the driving member 61, and the other end of the ball-pushing pipeline 60 is connected to the discharge cleaning pipeline 201. The elastic projectile is driven by the driving member 61 to reciprocate in the ball-pushing pipeline 60 and the discharge cleaning pipeline 201. In this way, the elastic projectile can push the residual slurry in the discharge cleaning pipeline 201 to the tank body, which can avoid waste of slurry on the one hand and effectively avoid slurry residue on the other hand.

[0046] It should be noted that the dimensions of the ball-pushing pipeline 60 and the discharge cleaning pipeline 201 are both able to accommodate the passage of the elastic projectiles. The elastic projectiles include but are not limited to push balls.

[0047] In order to facilitate the control of the opening and closing of the discharge pipeline, a ball-pushing valve 62 is further provided on one end of the ball-pushing pipeline 60 close to the discharge cleaning pipeline 201 .

[0048] The working principle and working process of the slurry mixer device of the utility model are as follows:

[0049] The first detection device 11 is installed at the bottom of the mixer body 10 . When the slurry in the mixer body 10 is at a low level, a low level signal (first signal) can be triggered and transmitted to the control unit. In detail, there may be two abnormal situations at this time; in the first case, the slurry in the mixer body 10 has not been completely discharged. Since local cavities may appear during the slurry mixing process, the liquid level alarm signal is still triggered. At this time, the intelligent central control has not received the completion signal of the second detection device 22 and the third detection device 31, so the control unit will not send a discharge completion signal to the mixer body 10. The mixer discharge completion signal will be given only when the control unit receives the other two sets of signals; in the second case, the discharge is completed in the mixer body 10, but the low liquid level signal of the first detection device 11 is not triggered (there is always a capacitance difference between the capacitive sensor and the slurry attached), but because the control unit receives the completion signal from the second detection device 22 and the third detection device 31, the control unit will delay 30s to send the discharge completion signal to the mixer body. With this arrangement, no matter which situation occurs, the control unit can give an accurate discharge completion signal to the mixer body 10, so that the mixer body 10 stops working after receiving the signal.

[0050] The second detection device 22, with the first pressure sensor 220 and the second pressure sensor 221 respectively positioned at the front and rear of the diaphragm pump, can collect the pressure across the diaphragm pump in real time. The collected pressure value (second signal) is transmitted to the control unit, which processes the pressure in three stages. The first stage, three minutes before discharge, is used for data collection only and no analysis is performed. The second stage is from the end of the first stage to eighteen minutes after discharge (approximately twenty-five minutes after normal discharge). The average of the diaphragm pump pressure differences during this stage serves as the basis for determining the pressure detection value in the third stage. The third stage begins monitoring when the pressure differential suddenly changes (due to the diaphragm pump running dry, there is essentially no pressure differential between the front and rear). A delay of half a minute is applied, and a signal is transmitted to the control unit if the pressure differential remains unchanged.

[0051] The third detection device 31, the control unit presets the set weight of the tank body 30, and when the weight of the contents of the tank body 30 reaches the preset weight, the third signal is sent to the control unit, and the control unit controls the ball pushing cleaning component to work. When the ball pushing is completed, the control unit controls the third detection device 31 to automatically calibrate the weight to prevent weight monitoring from being inaccurate.

[0052] The control unit receives the above three groups of signals and transmits a discharge completion signal to the mixer body 10. At this time, the diaphragm pump is closed and the discharge is completed.

[0053] As a preferred embodiment, the mixer unit also includes a vacuum cover 12, which is assembled on the mixer body 10, so as to isolate the slurry in the mixer body 10 from the outside air, thereby preventing the slurry from being contaminated by the external environment and preventing impurities from entering the mixer body 10.

[0054] In order to facilitate the mixer body 10 to be stably placed on the ground, the mixer unit further includes a support frame 13 , and the mixer body 10 is installed on the support frame 13 .

[0055] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0056] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0057] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0058] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. Slurry stirring device, characterized by: include, A blender unit comprising a blender body (10); a discharge unit comprising a discharge pipeline (20) and a first pump (21), one end of the discharge pipeline (20) being connected to the mixer body (10), and the first pump (21) being arranged on the discharge pipeline (20); A finished product collection unit, comprising a tank body (30), the other end of the discharge pipe (20) being connected to the tank body (30); a detection unit comprising a first detection device (11), a second detection device (22), and a third detection device (31), wherein the first detection device (11) is connected to the mixer body (10) to detect the liquid level in the mixer body (10); the second detection device (22) is connected to the discharge pipe (20) and the first pump (21) to detect the pressure at both ends of the first pump (21); and the third detection device (31) is connected to the tank body (30) to detect the weight of the contents of the tank body (30); A control unit is connected to the mixer unit, the discharging unit, the finished product collecting unit and the detection unit.

2. The slurry stirring device according to claim 1, characterized in that: The second detection device (22) comprises a first pressure sensor (220) and a second pressure sensor (221), wherein the first pressure sensor (220) is arranged at the inlet end of the first pump (21), and the second pressure sensor (221) is arranged at the outlet end of the first pump (21).

3. The slurry stirring device according to claim 1 or 2, characterized in that: The first pump (21) is a diaphragm pump.

4. The slurry stirring device according to claim 1, characterized in that: The discharge unit further comprises a demagnetization device (40), the demagnetization device is arranged in the discharge pipeline (20), and the demagnetization device (40) is located between the second detection device (22) and the tank body (30).

5. The slurry stirring device according to claim 1, characterized in that: The discharge unit further comprises a pipeline cleaning device, and the pipeline cleaning device is connected to the discharge pipeline (20).

6. The slurry stirring device according to claim 5, characterized in that: The area of ​​the discharge pipeline (20) close to the tank body (30) is a discharge cleaning pipeline (201), and the pipeline cleaning device is connected to the cleaning pipeline (201).

7. The slurry stirring device according to claim 6, characterized in that: The pipeline cleaning device comprises a ball-pushing cleaning assembly, which comprises a ball-pushing pipeline (60), a driving member (61), and an elastic projectile. One end of the ball-pushing pipeline (60) is connected to the driving member (61), and the other end of the ball-pushing pipeline (60) is connected to the discharge cleaning pipeline (201). The elastic projectile is driven by the driving member to move in the ball-pushing pipeline (60) and the discharge cleaning pipeline (201).

8. The slurry stirring device according to claim 7, characterized in that: A ball-pushing valve (62) is provided on one end of the ball-pushing pipeline (60) close to the discharge and cleaning pipeline (201).

9. The slurry stirring device according to claim 1, characterized in that: The blender unit further comprises a vacuum cover (12), wherein the vacuum cover (12) is assembled on the blender body (10).

10. The slurry stirring device according to claim 1, characterized in that: The mixer unit further comprises a support frame (13), and the mixer body (10) is mounted on the support frame (13).

Images