Slurry transfer tank

Abstract

The utility model provides a slurry transfer tank, including a tank body, and also including a feed port and a discharge port, wherein the feed port is arranged at the top of the tank body and the discharge port is arranged at the bottom of the tank body along the height direction of the tank body; a spiral pipe is spirally extended and arranged in the tank body along the height direction of the tank body, and one end of the spiral pipe corresponds to the feed port to receive the feed, and the other end corresponds to the discharge port to discharge the material. The slurry transfer tank provided by the utility model can reduce the generation of bubbles and increase the release of bubbles during the slurry transfer process.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of slurry coating, and more particularly, to a slurry transfer tank. Background Art

[0002] In the process of transferring the lithium battery homogenized slurry to the coating transfer tank through the automatic feeding pipeline, the slurry is affected by gravity, pressure and other factors after entering the transfer tank, and the vertical falling speed is very fast. The slurries will collide with each other, generating a large number of bubbles that are difficult to eliminate, causing major defects in the coating appearance.

[0003] In the related art, the defoaming measure adopted is to perform a vacuum operation and stirring in the transfer tank to eliminate the bubbles in the slurry, but this method takes a long time to defoam and has a poor defoaming effect. Utility Model Content

[0004] In order to solve or at least partially solve the above technical problems, the utility model provides a slurry transfer tank, which can reduce the generation of bubbles and increase the release of bubbles during the slurry transfer process.

[0005] The utility model provides a slurry transfer tank, comprising a tank body, and also comprising a feed port and a discharge port, wherein the feed port is arranged at the top end of the tank body and the discharge port is arranged at the bottom end of the tank body along the height direction of the tank body; a spiral pipe is spirally extended and arranged in the tank body along the height direction of the tank body, and one end of the spiral pipe corresponds to the feed port to receive the feed, and the other end corresponds to the discharge port to discharge the material.

[0006] Furthermore, the tank body has a central axis along its height direction, and the spiral pipe is spirally arranged around the central axis.

[0007] Furthermore, one end of the spiral pipe is connected to the inner side wall of the top end of the tank body, and the other end is connected to the inner side wall of the bottom end of the tank body, and the spiral pipe is coaxially arranged with the tank body.

[0008] Furthermore, the spiral pipe is inclined relative to the horizontal plane, and the acute angle with the horizontal plane is 20-45 degrees. The spiral pipe is arranged close to the inner wall of the tank body relative to the central axis in the height direction of the tank body.

[0009] Furthermore, a side of the spiral pipe close to the inner wall of the tank body is connected to the inner wall of the tank body.

[0010] Furthermore, the spiral pipe includes a spiral plate and a baffle, one side of the spiral plate is connected to the inner wall of the tank body, and the other side of the spiral plate is connected to the baffle, and the inner wall of the tank body, the spiral plate and the baffle together form a spiral groove for conveying slurry.

[0011] Furthermore, the feed port, the discharge port, the pipe opening of the spiral pipe corresponding to the feed port, and the pipe opening of the spiral pipe corresponding to the discharge port are all located on the central axis of the tank body along its height direction; or, the projection of the feed port along the height direction of the tank body is projected onto the spiral pipe, and the projection of the discharge port along the height direction of the tank body is projected onto the spiral pipe.

[0012] Furthermore, the height of the tank body is 1600 mm to 1800 mm, and the spiral pipe is spiraled no less than 3 times.

[0013] Furthermore, the ratio of the inner diameter of the tank body, the height of the tank body, the width of the spiral pipe and the height of the baffle is (110-130): (160-180): (15-30): (10-17).

[0014] Furthermore, it also includes a traveling mechanism, including a bracket that supports and fixes the tank body, a pulley installed at the bottom of the bracket and a handle arranged on the bracket; and a control unit installed on the bracket for controlling the tank body; and a vacuum pipe mouth for vacuuming is arranged at the top of the tank body; and a high liquid level sensor and a low liquid level sensor are arranged on the tank body.

[0015] The beneficial effects of this application are:

[0016] The slurry transfer tank provided in the present application has a spiral pipe arranged in the tank body, so that the slurry entering therein can flow downward along the spiral pipe evenly and stably, avoiding collision of the slurries in the tank body, thereby reducing the generation of bubbles and increasing the release of bubbles.

[0017] In addition, the slurry transfer tank provided in the present application has the advantages of simple operation and low cost; at the same time, it also improves production efficiency and equipment utilization rate. After the slurry is treated by the transfer tank, the bubbles are reduced or released, which greatly improves the uniformity and consistency of the coating appearance during subsequent coating operations.

[0018] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the present disclosure, nor are they intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0020] Figure 1 The schematic diagram of the structure of the slurry transfer tank provided by the embodiment of the utility model is shown;

[0021] Figure 2A top view of a slurry transfer tank provided in an embodiment of the utility model is shown;

[0022] Figure 3 Shows Figure 1 Structural diagram of the middle running mechanism;

[0023] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names in the figure is:

[0024] 1 tank body, 10 vacuum pipe port, 11 feed port, 12 discharge port, 13 high liquid level sensor, 14 low liquid level sensor, 2 spiral pipe, 20 baffle, 21 spiral plate, 3 running mechanism, 30 bracket, 31 pulley, 32 handle, 4 control unit. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0026] In addition, the term "and / or" in this article is only a description of the association relationship between the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0027] Refer to the following Figures 1 to 3 To describe a slurry transfer tank provided by an embodiment of the utility model, comprising a tank body 1, and also comprising a feed port 11 and a discharge port 12. Along the height direction of the tank body 1, the feed port 11 is arranged at the top end of the tank body 1, and the discharge port 12 is arranged at the bottom end of the tank body 1; a spiral pipe 2 is spirally extended along the height direction of the tank body 1 and arranged therein, and one end of the spiral pipe 2 corresponds to the feed port 11 to receive the feed, and the other end corresponds to the discharge port 12 to discharge the material.

[0028] It should be noted that the spiral pipe 2 here can be a conveying pipe formed by a spiral groove with three sides closed and one side open as described below; it can also be a conveying pipe formed by four sides closed and with exhaust holes opened thereon, as long as the spiral is satisfied and the gas in the slurry can be discharged from the pipe.

[0029] “The other end of the spiral pipe 2 corresponds to the discharge port 12” may mean that the other end of the spiral pipe 2 is directly opposite to the discharge port 12; or it may mean that the other end of the spiral pipe 2 is not directly opposite to the discharge port 12, as long as the slurry coming out of the spiral pipe 2 can smoothly fall to the discharge port 12. In addition, as a preferred embodiment, the other end of the spiral pipe 2 is arranged close to the discharge port 12. Of course, the other end of the spiral pipe 2 may be connected to the discharge port 12 or may not be connected to the discharge port 12, as long as the slurry coming out of the spiral pipe 2 can smoothly fall to the discharge port 12.

[0030] The slurry transfer tank provided in the present application has a spiral pipe 2 arranged inside the tank body 1, so that the slurry entering therein can flow downward along the spiral pipe 2 evenly and stably, avoiding mutual collision of the slurries inside the tank body 1, thereby reducing the generation of bubbles and increasing the release of bubbles.

[0031] In addition, the slurry transfer tank provided in the present application has the advantages of simple operation and low cost; at the same time, it also improves production efficiency and equipment utilization rate. After the slurry is treated by the transfer tank, the bubbles are reduced or released, which greatly improves the uniformity and consistency of the coating appearance during subsequent coating operations.

[0032] More specifically, Figure 1 As shown, the slurry transfer tank provided by the utility model includes a tank body 1 for storing slurry, wherein the top of the tank body 1 is provided with a feeding port 11 for injecting grout into the tank body 1, and the bottom of the tank body 1 is provided with a discharge port 12 for discharging slurry from the tank body 1; and a spiral pipe 2, which is arranged in the tank body 1 and spirals downward along the axis of the tank body 1, and can specifically be a continuous plate-like structure, wherein one end of the spiral pipe 2 is connected to the inner wall of the top end of the tank body 1, and the other end is connected to the inner wall of the bottom end of the tank body 1.

[0033] In this embodiment, a vacuum nozzle 10 for vacuuming is also provided at the top of the tank body 1. When the slurry transfer tank is working, the feed port 11 is connected to the slurry storage tank through the feed pipe, the vacuum nozzle 10 is connected to the vacuum pump through the vacuum pipe, and the discharge port 12 is connected to the discharge device through the discharge pipe. When the slurry in the slurry storage tank is pumped into the tank body 1, the feed port 11 and the vacuum pump are opened, and the tank body 1 is vacuumed to keep the tank body 1 in a negative pressure state, and the slurry in the slurry storage tank is pumped into the tank body 1 through the feed port 11 through the negative pressure state in the tank.

[0034] In this embodiment, the tank body 1 has a central axis along its height direction, and the spiral pipe 2 is spirally arranged around the central axis. Further, one end of the spiral pipe 2 is connected to the inner side wall of the top end of the tank body 1, and the other end is connected to the inner side wall of the bottom end of the tank body 1. The spiral pipe 2 is coaxially arranged with the tank body 1 to maintain the stability of the entire slurry transfer tank.

[0035] Among them, the spiral pipe 2 is arranged close to the inner wall of the tank body 1 and connected to one side of the inner wall. Specifically, the spiral pipe 2 includes a spiral plate 21 and a baffle 20. One side of the spiral plate 21 is connected to the inner wall of the tank body 1, and the other side of the spiral plate 21 is connected to the baffle 20. The inner wall of the tank body 1, the spiral plate 21 and the baffle 20 together form a spiral groove for conveying slurry, so that the slurry can flow and fall stably in the spiral groove without overflowing out of the spiral groove.

[0036] When the spiral pipe 2 is installed on the inner wall of the tank body 1, the spiral plate 21 is fixed in the tank body 1 by connecting the outer circumference of the spiral plate 21 to the inner wall of the tank body 1, and an upright baffle 20 is installed on the inner circumference of the spiral plate 21 to prevent the slurry from overflowing from the spiral groove during the flow. There is a preset distance between the inner circumference of the spiral plate 21 and the axis of the tank body 1, so that there is a spacing between the two, so that the spiral pipe 2 has a suitable slope.

[0037] In this state, the upper end of the spiral pipe 2 is connected to the inner wall of the top end of the tank body 1, the lower end of the spiral pipe 2 is connected to the inner wall of the bottom end of the tank body 1, and the outer peripheral side of the spiral plate 21 is connected to the inner wall of the tank body 1, so that the spiral pipe 2 spirals downward around the axis of the tank body 1 from the upper end to the lower end.

[0038] In this embodiment, the feed port 11, the discharge port 12, the pipe opening of the spiral pipe 2 corresponding to the feed port 11, and the pipe opening of the spiral pipe 2 corresponding to the discharge port 12 are all located on the central axis of the tank body 1 along its height direction; or the projection of the feed port 11 along the height direction of the tank body 1 is projected on the spiral pipe 2, and the projection of the discharge port 12 along the height direction of the tank body 1 is projected on the spiral pipe 2. Thus, the slurry can enter the tank body 1 from the feed port 11 and fall to the center line of the spiral pipe 2, diffuse to both sides of the center line of the spiral pipe 2, and flow from the upper end of the spiral pipe 2 to the lower end of the spiral pipe 2 according to the specified slope, until it reaches the junction of the lower end of the spiral pipe 2 and the slurry liquid surface, and merges with the slurry flow in the tank body 1.

[0039] In this embodiment, Figure 1 The placement orientation of the slurry transfer tank is such that when the slurry falls onto the spiral pipe 2, the slurry landing point can be set at or below 1 / 4 of the vertical height of the spiral pipe 2 from the top to the bottom of the tank body 1, and close to the upper end of the spiral pipe 2, so that the slurry can obtain as much flow area and height as possible on the spiral pipe 2.

[0040] In this embodiment, since the lower end of the spiral pipe 2 is connected to the inner wall of the bottom end of the tank body 1, when the slurry flows downward along the spiral pipe 2, the junction between the lower end of the spiral pipe 2 and the slurry liquid surface in the tank body 1 is the slurry confluence point. When the slurry flows to this point, it can merge with the slurry stored in the tank body 1, minimizing the collision between the slurries and reducing the generation of bubbles.

[0041] Therefore, after the slurry falls onto the spiral pipe 2 from the feed port 11, it diffuses to both sides of the center line of the spiral pipe 2 while flowing downward at a specified slope. By adjusting the viscosity of the slurry, the inclination angle of the spiral pipe 2, the width of the spiral pipe 2 and the height of the slurry landing point in the vertical direction of the spiral pipe 2, the slurry can roughly cover the entire surface of the spiral pipe 2 when flowing downward from the slurry landing point, with a larger flow area, thereby obtaining a better defoaming effect.

[0042] In some specific embodiments, the ratio of the inner diameter of the tank body 1, the height of the tank body 1, the width of the spiral pipe 2 and the height of the baffle 20 is (110-130): (160-180): (15-30): (10-17). By coordinating the proportional relationship between the four, it is possible to ensure that the spiral pipe 2 has a suitable layout space in the tank body 1, thereby ensuring that the spiral groove has a suitable groove depth and width, which ultimately helps to reduce the amount of bubbles generated during the slurry transfer process and increase the amount of bubbles released during the slurry transfer process.

[0043] In this embodiment, the inner diameter range of the tank body 1 is 1100mm~1300mm, preferably 1200mm; the height range of the tank body 1 is 1600mm~1800mm, preferably 1650mm; the wall thickness range of the tank body 1 is 90mm~150mm, preferably 100mm; when the slurry falls onto the spiral pipe 2, the height position of the slurry falling point in the vertical direction of the spiral pipe 2 is 1 / 5~1 / 3 of the straight-line distance from the upper end to the lower end along the axis of the tank body 1, preferably 1 / 4; the material of the spiral pipe 2 is preferably stainless steel, and can also be replaced by high-temperature resistant materials such as aluminum alloy or steel-lined polytetrafluoroethylene.

[0044] In this embodiment, the height range of the baffle 20 is 100 mm to 170 mm, preferably 150 mm. If it is lower than 100 mm, slurry overflow may occur easily; if it is higher than 170 mm, it may not only cause material waste but also affect the spiral setting of the spiral pipe 2 in the tank body 1.

[0045] In this embodiment, the width of the spiral pipe 2 ranges from 150mm to 300mm, preferably from 200mm to 250mm; the height of the tank body 1 is 1600mm to 1800mm, the number of spiral turns of the spiral pipe 2 is not less than 3 turns, and the spiral pipe 2 is inclined relative to the horizontal plane, and the acute angle with the horizontal plane is 20-45°, preferably 25 to 35°. If it is greater than 45°, the inclination angle of the spiral pipe 2 is too large, the flow speed of the slurry on the spiral pipe 2 is too fast, and the bubbles cannot be fully discharged, affecting the subsequent coating effect; if it is less than 20°, the inclination angle of the spiral pipe 2 is too small, and the flow speed of the slurry on the spiral pipe 2 is too slow, which reduces the production efficiency on the one hand, and on the other hand, it will cause the slurry on the spiral pipe 2 to be blocked due to the influence of the viscosity of the slurry itself, making the device unable to work normally.

[0046] In this embodiment, the tank body 1 is also equipped with a high liquid level sensor 13 and a low liquid level sensor 14, wherein the straight-line distance between the low liquid level sensor 14 and the inner side wall of the bottom end of the tank body 1 in the vertical direction is 1300mm~1500mm, and the straight-line distance between the high liquid level sensor 13 and the inner side wall of the bottom end of the tank body 1 in the vertical direction is 1400mm~1600mm, and the height difference between the two in the vertical direction is preferably 100mm. When the slurry liquid level in the tank body 1 is lower than the low liquid level sensor 14, the feed port 11 will automatically open and inject slurry into the tank body 1. When the slurry liquid level in the tank body 1 reaches the high liquid level sensor 13, the feed port 11 will automatically close and stop injecting grout into the tank body 1, so that the slurry in the tank body 1 always maintains an appropriate amount.

[0047] In this embodiment, after the slurry has completely fallen into the tank body 1 from the spiral pipe 2, all the bubbles in the slurry have been discharged. At this time, the discharge port 12 is opened, and the slurry enters the discharge equipment through the discharge pipe connected to the discharge port 12 for coating operation.

[0048] In this embodiment, if Figure 2 As shown, the slurry transfer tank also includes a control unit 4, which is installed on the traveling mechanism 3 and is used to control the opening and closing of the feed port 11, the vacuum pump and the discharge port 12 on the tank body 1.

[0049] In this embodiment, if Figure 3 As shown, the traveling mechanism 3 includes a bracket 30 mounted on the outer side of the lower part of the tank body 1 for supporting and fixing the tank body 1, a pulley 31 installed at the bottom of the bracket 30 and a handle 32 arranged on the bracket 30. When the tank body 1 needs to be moved, the tank body 1 can be transferred by pushing the handle 32.

[0050] The specific operation process of the slurry transfer tank of the utility model includes:

[0051] 1) A tank body 1 with an inner diameter of 1200 mm, a height of 1650 mm and a wall thickness of 100 mm is selected. A spiral pipe 2 made of stainless steel is spirally arranged downward in the tank body 1, wherein the width of the spiral pipe 2 is 230 mm, and the acute angle between the spiral pipe 2 and the horizontal plane is 30°. The number of spiral turns in the tank body 1 is 3 turns, and the height of the baffle installed on the inner circumference of the spiral plate 21 is 150 mm. A high liquid level sensor 13 and a low liquid level sensor 14 are installed on the tank body 1, wherein the straight-line distance between the high liquid level sensor 13 and the inner side wall of the bottom end of the tank body 1 is 1400 mm, and the straight-line distance between the low liquid level sensor 14 and the inner side wall of the bottom end of the tank body 1 is 1300 mm, and the height difference between the two is 100 mm.

[0052] 2) When the slurry transfer tank is working, the feed port 11 is connected to the slurry storage tank through the feed pipe, the vacuum pipe port 10 is connected to the vacuum pump through the vacuum pipe, and the discharge port 12 is connected to the discharge device through the discharge pipe. At this time, the control unit 4 is operated to open the feed port 11 and the vacuum pump, and the tank body 1 is vacuumed until the vacuum degree in the tank body 1 is -90kpa;

[0053] 3) The slurry in the slurry storage tank enters the tank body 1 from the feed port 11 and falls onto the spiral spiral pipe 2;

[0054] 4) Under the action of gravity, the slurry diffuses to both sides of the center line of the spiral pipe 2 while flowing along the spiral pipe 2 from the upper end to the lower end. When the slurry flows on the spiral pipe 2, the bubbles in the slurry gradually detach;

[0055] 5) The slurry finally reaches the junction of the spiral pipe 2 and the liquid surface of the slurry stored in the tank 1 and merges with the stored slurry. At this time, most of the bubbles in the slurry have been separated;

[0056] 6) When the slurry liquid level in the tank body 1 reaches the height of the high liquid level sensor 13, the feed port 11 is automatically closed. At this time, the control unit 4 is operated to turn off the vacuum pump and open the discharge port 12. The defoamed slurry enters the discharge device through the discharge pipe for the next coating operation;

[0057] 7) When the slurry level in the tank body 1 is lower than the height of the low liquid level sensor 14, the feed port 11 is automatically opened, and the slurry storage tank automatically injects slurry into the tank body 1 until the slurry level in the tank body 1 reaches the height of the high liquid level sensor 13 again, and the operation is cyclic.

[0058] According to the embodiments of the present disclosure, the following technical effects are achieved:

[0059] By providing a spiral spiral pipe 2, the slurry can obtain the maximum flow area on the spiral pipe 2, and the bubbles are fully released from the slurry under negative pressure, thereby improving the uniformity and consistency of the subsequent coating appearance; by connecting the outer periphery of the lower end of the spiral pipe 2 with the inner periphery of the bottom end of the tank body 1, the slurry flowing on the spiral pipe 2 can merge with the bubble-free slurry stored in the tank body 1, and the collision between the slurries is minimized, thereby improving the defoaming effect of the transfer tank; by reasonably setting the inclination angle of the spiral pipe 2, the slurry can maintain the maximum flow area within a reasonable flow rate, thereby improving the efficiency of bubble release; by providing a low liquid level sensor 14 and a high liquid level sensor 13, the slurry in the tank body 1 is always maintained at a certain total amount, thereby improving production efficiency and equipment utilization rate.

[0060] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A slurry transfer tank, comprising a tank body, characterized in that: Also includes, A feed inlet and a discharge outlet are arranged along the height direction of the tank body, the feed inlet is arranged at the top end of the tank body, and the discharge outlet is arranged at the bottom end of the tank body; A spiral pipe is spirally extended in the height direction of the tank body, and one end of the spiral pipe corresponds to the feed port to receive the feed, and the other end corresponds to the discharge port to discharge the material. The spiral pipeline includes a spiral plate and a baffle, one side of the spiral plate is connected to the inner wall of the tank body, and the other side of the spiral plate is connected to the baffle, and the inner wall of the tank body, the spiral plate and the baffle together form a spiral groove for conveying slurry; The ratio of the inner diameter of the tank body, the height of the tank body, the width of the spiral pipe and the height of the baffle is (110-130): (160-180): (15-30): (10-17).

2. The slurry transfer tank according to claim 1, characterized in that: The tank body has a central axis along its height direction, and the spiral pipe is spirally arranged around the central axis.

3. The slurry transfer tank according to claim 2, characterized in that: One end of the spiral pipe is connected to the inner side wall of the top end of the tank body, and the other end is connected to the inner side wall of the bottom end of the tank body. The spiral pipeline is coaxially arranged with the tank body.

4. The slurry transfer tank according to claim 1, characterized in that: The spiral pipe is inclined relative to the horizontal plane, and the acute angle with the horizontal plane is 20-45°. Relative to the central axis of the tank body in the height direction, the spiral pipe is arranged close to the inner side wall of the tank body.

5. The slurry transfer tank according to claim 4, characterized in that: The side of the spiral pipe close to the inner wall of the tank body is connected to the inner wall of the tank body.

6. The slurry transfer tank according to claim 1, characterized in that: The feed inlet, the discharge outlet, the pipe opening of the spiral pipe corresponding to the feed inlet, and the pipe opening of the spiral pipe corresponding to the discharge outlet are all located on the central axis of the tank body along its height direction; or, The projection of the feed port along the height direction of the tank body is projected onto the spiral pipe, and the projection of the discharge port along the height direction of the tank body is projected onto the spiral pipe.

7. The slurry transfer tank according to claim 1, characterized in that: The height of the tank body is 1600 mm to 1800 mm, and the spiral pipe is spiraled for no less than 3 times.

8. The slurry transfer tank according to claim 1, characterized in that: Also includes: A traveling mechanism, comprising a bracket for supporting and fixing the tank body, a pulley installed at the bottom of the bracket, and a handle arranged on the bracket; a control unit, mounted on the bracket, for controlling the tank; and The top of the tank body is provided with a vacuum nozzle for vacuuming; The tank body is provided with a high liquid level sensor and a low liquid level sensor.

Images