Stirring equipment control method, stirring system and electronic equipment

Abstract

The invention relates to the field of stirring equipment, and discloses a stirring equipment control method, a stirring system and electronic equipment. The stirring equipment comprises a tank body and a powder feeding opening formed in the tank body, the powder feeding opening of the stirring equipment is connected with a powder input device through a control valve, and the stirring equipment is further connected with vacuumizing equipment through the tank body; the method comprises the following steps: controlling the vacuumizing equipment to vacuumize the tank body; under the condition that the vacuum degree in the tank body is within a preset vacuum degree range, the control valve is controlled to be opened, so that powder conveyed by the powder input device is input into the tank body to be mixed with a liquid material in the tank body; wherein under the condition that the vacuum degree in the tank body is within a preset vacuum degree range, the powder cannot protrude out of the liquid surface of the liquid material. Therefore, the powder added into the tank body cannot protrude out of the liquid level of the liquid material.

Description

Technical Field

[0001] The present application relates to the field of stirring equipment, and in particular to a stirring equipment control method, a stirring system, and an electronic device. Background Art

[0002] Powder-liquid mixing is a process of mixing liquid and powder. In order to fully mix the liquid and powder, the commonly used solution is to first place the liquid in the mixing equipment, and then open the control valve on the feeding pipeline, so that the powder can be fed into the mixing equipment through the feeding pipeline set at the bottom of the mixing equipment, thereby achieving mixing of powder and liquid.

[0003] However, since the liquid pressure in the stirring equipment will form resistance to the input of powder into the stirring equipment, when the control valve opening is small, that is, when the powder is input into the stirring equipment at a low speed, the powder may not be successfully input into the stirring equipment, and may even cause the liquid in the stirring equipment to flow back into the feed pipeline.

[0004] At the same time, even if the powder can be successfully input into the stirring device at present, as the amount of powder input into the stirring device increases, the liquid pressure in the stirring device will also increase accordingly, and the resistance of the powder input into the stirring device will also increase, which may eventually lead to the failure of the powder to be successfully input into the stirring device.

[0005] In addition, when the control valve is opened at a large degree, the powder may directly break through the liquid surface due to the high speed of the powder entering the mixing equipment, making it difficult to mix the powder and liquid evenly.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present application provide a stirring device control method, a stirring system, and an electronic device to solve the problem that powder cannot enter the stirring device or breaks through the liquid surface due to excessive entry speed.

[0009] The embodiment of the present application provides a method for controlling a stirring device, wherein the stirring device comprises a tank body, a powder feed port provided on the tank body, the powder feed port of the stirring device is connected to a powder input device through a control valve, and the stirring device is also connected to a vacuum device through the tank body; the method comprises:

[0010] Controlling the vacuum pumping device to perform a vacuum pumping operation on the tank body;

[0011] When the vacuum degree in the tank body is within a preset vacuum degree range, the control valve is controlled to open so that the powder transported by the powder input device is input into the tank body to be mixed with the liquid material in the tank body; wherein, when the vacuum degree in the tank body is within the preset vacuum degree range, the powder cannot protrude from the liquid surface of the liquid material.

[0012] In the above implementation scheme, the vacuum pumping device is controlled to perform a vacuum pumping operation on the tank body of the stirring device, so that the vacuum degree in the tank body is within a preset vacuum degree range. Since the powder transported by the powder input device cannot protrude from the liquid surface of the liquid material when the vacuum degree in the tank body is within the preset vacuum degree range, the controlled valve is controlled to open when the vacuum degree in the tank body is within the preset vacuum degree range, which not only allows the powder transported by the powder input device to enter the tank body smoothly, but also ensures that the powder cannot protrude from the liquid surface of the liquid material. In this way, in the subsequent process of controlling the stirring device to mix the powder and the liquid material, the powder and the liquid material can be mixed more quickly and evenly.

[0013] Furthermore, when the vacuum degree in the tank body is within a preset vacuum degree range, the stirring device control method further comprises: controlling the vacuum pumping device to stop performing the vacuum pumping operation on the tank body.

[0014] In the above implementation, when the vacuum degree in the tank body is within the preset vacuum degree range, the vacuum pumping device is directly controlled to stop the vacuum pumping operation on the tank body, which not only saves energy, but also prevents the vacuum pumping device from continuously performing the vacuum pumping operation on the tank body, thereby preventing the vacuum degree in the tank body from exceeding the preset vacuum degree range. This can prevent the powder from protruding from the liquid surface due to the vacuum degree in the tank body exceeding the preset vacuum degree range.

[0015] Furthermore, after controlling the vacuuming device to stop vacuuming the tank, the stirring device control method further includes:

[0016] When it is detected that the vacuum degree in the tank body is lower than a preset warning vacuum degree threshold, the vacuum pumping device is controlled to perform a vacuum pumping operation on the tank body until the vacuum degree in the tank body reaches a preset safety vacuum degree threshold;

[0017] The safety vacuum degree threshold is greater than the warning vacuum degree threshold, and the safety vacuum degree threshold and the warning vacuum degree threshold are within the preset vacuum degree range.

[0018] Since the vacuum pumping device may not be able to operate immediately after receiving the control instruction, and needs to react for a period of time. Therefore, limited by the operating conditions of the vacuum pumping device, the above implementation scheme controls the vacuum pumping device to perform a vacuum pumping operation on the tank body when it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, which can give the vacuum pumping device enough reaction time. In this way, even if the reaction time of the vacuum pumping device is long, the vacuum degree in the tank body continues to decrease during the reaction time, and it will not be lower than the minimum limit value of the preset vacuum degree range, thereby reducing the possibility of liquid backflow. Similarly, controlling the vacuum pumping device to perform a vacuum pumping operation on the tank body until the vacuum degree in the tank body reaches the preset safety vacuum degree threshold is also to give the vacuum pumping device enough reaction time. In this way, even if the vacuum pumping device cannot stop running immediately after receiving the stop operation instruction, so that the vacuum degree in the tank body continues to increase, the vacuum degree in the tank body will not exceed the maximum limit value of the preset vacuum degree range, thereby reducing the occurrence of powder protruding from the liquid surface.

[0019] Furthermore, in the case where it is detected that the vacuum degree in the tank is lower than a preset warning vacuum degree threshold, the stirring device control method further includes: closing the control valve;

[0020] When the vacuum degree in the tank reaches a preset safety vacuum degree threshold, the stirring equipment control method further includes: opening the control valve.

[0021] In the above implementation, when it is detected that the vacuum degree in the tank is lower than the warning vacuum degree threshold, the control valve is directly closed to prevent the liquid from flowing back. In addition, when the vacuum degree in the tank reaches the preset safety vacuum degree threshold, the control valve is opened so that the powder can successfully enter the tank without protruding from the liquid surface.

[0022] Furthermore, the stirring equipment control method further includes: obtaining a current vacuum degree in the tank body and a current entry speed of the powder into the tank body;

[0023] According to the preset corresponding relationship between the entry speed and the vacuum degree and the current entry speed, determining the target vacuum degree corresponding to the current entry speed;

[0024] When the current vacuum degree is lower than the target vacuum degree, the vacuum pumping device is controlled to maintain the vacuum pumping operation on the tank body.

[0025] As the powder is input, the liquid pressure in the tank will increase and the vacuum will decrease. This will reduce the speed at which the powder enters the tank, and may even cause liquid backflow. In the above implementation, by obtaining the current vacuum in the tank and the current speed at which the powder enters the tank, and then determining the target vacuum corresponding to the current entry speed based on the preset correspondence between the entry speed and the vacuum and the current entry speed, and finally, when the current vacuum is lower than the target vacuum, the vacuum pumping equipment is controlled to maintain the vacuum pumping operation on the tank. In this way, the vacuum in the tank can reach the target vacuum, ensuring the speed at which the powder enters the tank, and reducing the possibility of liquid backflow.

[0026] Furthermore, the stirring device control method further comprises:

[0027] Obtaining a current entry speed of the powder into the tank;

[0028] When the current entry speed is less than or equal to a preset speed threshold, controlling the vacuum pumping device to maintain the vacuum pumping operation on the tank body;

[0029] When the current entry speed is greater than a preset speed threshold, the vacuuming device is controlled to stop the vacuuming operation on the tank body until the current entry speed of the powder into the tank body is less than or equal to the preset speed threshold.

[0030] In the above implementation scheme, by obtaining the current entry speed of the powder into the tank, and then controlling the vacuum pumping device to maintain the vacuum pumping operation on the tank when the current entry speed is less than or equal to the preset speed threshold, and controlling the vacuum pumping device to stop the vacuum pumping operation on the tank when the current entry speed is greater than the preset speed threshold, until the current entry speed of the powder into the tank is less than or equal to the preset speed threshold. In this way, the entry speed of the powder into the tank can be maintained at the preset speed threshold, thereby reducing the possibility of liquid backflow.

[0031] Furthermore, the powder feed port is connected to the powder input device through a powder feed pipe, and a plurality of feed channels of different sizes are provided at the end of the powder feed pipe close to the powder feed port; each of the feed channels is provided with a corresponding control valve; and controlling the control valve to open includes:

[0032] Determining a target feeding channel among the plurality of feeding channels according to a preset correspondence relationship between different powders and the feeding channels;

[0033] The control valve corresponding to the target feed channel is controlled to open.

[0034] In the above implementation scheme, a target feed channel is determined among multiple feed channels according to the preset correspondence between different powders and feed channels; and then the control valve corresponding to the target feed channel is controlled to open. In this way, different feed channels can be used to transport different powders, reducing the situation of feed channel blockage caused by overly large powder particles.

[0035] Further, the correspondence between the different powders and the feed channels includes the correspondence between different powder types and the feed channels; determining the target feed channel from the multiple feed channels according to the correspondence between the different powders and the feed channels includes:

[0036] Acquire information about the type of powder conveyed by the powder input device;

[0037] According to the correspondence between different powder types and feeding channels, the feeding channel corresponding to the powder type information is determined as the target feeding channel.

[0038] In the above implementation scheme, by obtaining the powder type information of the powder conveyed by the powder input device, and then determining the feed channel corresponding to the powder type information as the target feed channel according to the correspondence between different powder types and feed channels, the feed channel corresponding to the powder type information can be matched. In the subsequent process of conveying powder, the feed channel corresponding to the powder type information can be used to convey the powder, thereby reducing the possibility of powder blocking the feed channel.

[0039] Further, the correspondence between the different powders and the feed channels includes the correspondence between different bulk densities and the feed channels, and determining the target feed channel from the multiple feed channels according to the correspondence between the different powders and the feed channels includes:

[0040] Obtaining bulk density information of powder conveyed by the powder input device;

[0041] According to the corresponding relationship between different stacking densities and feed channels, the feed channel corresponding to the stacking density information is determined as the target feed channel.

[0042] In the above implementation scheme, the bulk density information of the powder conveyed by the powder input device is obtained, and then the feed channel corresponding to the bulk density information is determined as the target feed channel according to the correspondence between different bulk densities and the feed channel. In this way, the feed channel corresponding to the bulk density information of the powder can be determined. When the powder is subsequently conveyed, the feed channel corresponding to the bulk density information can be used to convey the powder, reducing the possibility of the powder blocking the feed channel.

[0043] Furthermore, the stirring device control method further comprises:

[0044] Obtaining the liquid level of the liquid material in the tank;

[0045] Obtaining the liquid pressure in the tank according to the liquid level;

[0046] The preset vacuum degree range is determined according to the liquid pressure.

[0047] In the above implementation scheme, since the liquid level of the liquid in the tank will affect the liquid pressure in the tank, the liquid pressure in the tank can be calculated by obtaining the liquid level of the liquid in the tank. At the same time, since the liquid pressure will affect the speed at which the powder is input into the tank, the purpose of adjusting the liquid pressure can be achieved by adjusting the vacuum degree in the tank. Therefore, by determining the preset vacuum degree range according to the liquid pressure, the preset vacuum degree range corresponding to the liquid pressure can be determined to ensure that when the vacuum degree in the tank is within the preset vacuum degree range, the speed at which the powder is input into the tank can be at a reasonable speed, that is, it can be successfully input into the tank without protruding the liquid level of the liquid.

[0048] Furthermore, obtaining the liquid level of the liquid material in the tank body includes:

[0049] Obtaining the inner diameter information of the tank body, the density information of the liquid material, and the weight information of the liquid material in the tank body;

[0050] The liquid level of the liquid material in the tank body is obtained according to the weight information, the density information and the inner diameter information.

[0051] In the above implementation, since the volumes of liquid materials of different weights and densities in the tank body are different, the liquid level of the liquid material in the tank body can be accurately obtained by obtaining the inner diameter information of the tank body, the density information of the liquid material, and the weight information of the liquid material in the tank body. In this way, in the subsequent process of obtaining the preset vacuum range, the liquid pressure in the tank body can be accurately obtained according to the liquid level, and then the preset vacuum range can be accurately determined according to the liquid level pressure.

[0052] Further, determining the preset vacuum range according to the liquid pressure includes:

[0053] According to the corresponding relationship between different liquid pressures and vacuum ranges, a target vacuum range corresponding to the liquid pressure is determined; the target vacuum range is the preset vacuum range.

[0054] In the above implementation scheme, the target vacuum range corresponding to the liquid pressure can be determined according to the correspondence between different liquid pressures and vacuum ranges, that is, the preset vacuum range can be determined. In this way, the vacuum in the tank can be controlled according to the target vacuum range corresponding to the liquid pressure, so that the vacuum in the tank is within the target vacuum range corresponding to the liquid pressure.

[0055] Further, determining the preset vacuum range according to the liquid pressure includes:

[0056] Determining the target vacuum degree corresponding to the liquid pressure according to the corresponding relationship between different liquid pressures and vacuum degrees;

[0057] The preset vacuum degree range is obtained according to the target vacuum degree and a preset difference range.

[0058] In the above implementation scheme, the target vacuum degree corresponding to the liquid pressure can be determined according to the corresponding relationship between different liquid pressures and vacuum degrees, and then the preset vacuum degree range can be obtained according to the target vacuum degree and the preset difference range. In this way, the vacuum degree in the tank body can be controlled according to the target vacuum degree range corresponding to the liquid pressure, so that the vacuum degree in the tank body is within the target vacuum degree range corresponding to the liquid pressure.

[0059] Furthermore, the powder feed port is arranged at the bottom or waist of the tank body.

[0060] In the above implementation scheme, by setting the powder feed port at the bottom or waist of the tank body, the powder input through the powder feed port will not be directly transported to the liquid surface of the liquid material, but will be immersed in the liquid material, reducing the possibility of the powder floating on the liquid surface.

[0061] Furthermore, the stirring equipment also includes a first stirring device arranged in the tank body, and a dispersion disk is arranged on the first stirring device; the powder feed port is arranged toward the dispersion disk, and the connecting line between the powder feed port and the dispersion disk intersects with the horizontal line but is not perpendicular to it, so that the powder input into the tank body is dispersed in the liquid material under the action of the dispersion disk.

[0062] In the above implementation, by arranging the powder feed port toward the dispersion disk, the powder input through the powder feed port can be directly sprayed on the dispersion disk, and then dispersed in the liquid material under the action of the dispersion disk. In this way, in the subsequent mixing process of the liquid material and the powder, the powder and the liquid material can be mixed more quickly and evenly.

[0063] Furthermore, the stirring device further comprises a first stirring device disposed in the tank body, and the stirring device control method further comprises:

[0064] Each time the continuous input of powder reaches a preset pause condition, the control valve is closed, and the control valve is reopened after a preset waiting time; wherein the first stirring device is in operation during the preset waiting time.

[0065] In the above implementation, each time the continuous input of powder reaches the preset pause condition, the control valve is closed, and the control valve is reopened after the preset waiting time, and the first stirring device is in operation during the preset waiting time. In this way, the first stirring device can mix the powder input into the tank with the liquid in the tank during the preset waiting time. This avoids the powder breaking through the liquid surface due to excessive powder entering and failure to disperse and stir in time.

[0066] Furthermore, the powder input device comprises: a cylinder for containing the powder, and a blowing device arranged on the cylinder; before controlling the control valve to open, the stirring device control method further comprises:

[0067] The blowing device is controlled to perform a blowing operation on the cylinder until the mixing ratio between the powder and the gas in the cylinder reaches a preset ratio threshold.

[0068] In the above implementation scheme, the cylinder is blown to make the mixing ratio between the powder and the gas in the cylinder reach a preset ratio threshold, and the powder can be transformed from a solid state to a solid-gas mixed state. Since the fluidity of the gas is stronger than that of the powder, the conveying efficiency can be improved when the powder is subsequently fed into the mixing equipment using the powder feed pipe. At the same time, the wear of the powder on the powder feed pipe can be reduced, and the possibility of the powder blocking the powder feed pipe can be reduced.

[0069] In a second aspect, an embodiment of the present application provides a stirring system, including a stirring device, a powder input device and a controller;

[0070] The stirring device comprises a tank body, a powder feed port arranged on the tank body, the powder feed port of the stirring device is connected to the powder input device through a control valve, and the stirring device is also connected to a vacuum device through the tank body;

[0071] The controller is respectively connected to the vacuum pumping device and the control valve for communicating with each other, and is used to execute the above-mentioned stirring device control method during operation.

[0072] In a second aspect, an embodiment of the present application provides an electronic device, including a processor, a memory, and a communication interface;

[0073] The memory stores computer executable instructions that can be executed by the processor,

[0074] The communication interface is used to communicate with the vacuum equipment and the control valve;

[0075] The vacuum pumping device is connected to the stirring device through the tank body of the stirring device; the tank body of the stirring device is also provided with a powder feed port; the powder feed port of the stirring device is connected to the powder input device through the control valve;

[0076] The processor executes the computer executable instructions stored in the memory to implement the above-mentioned stirring device control method.

[0077] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are considered similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0079] Figure 1-1 It is a structural schematic diagram of a stirring device provided in an embodiment of the present application;

[0080] Figure 1-2 This is a schematic diagram of a structure in which a powder feed port and a dispersion disk are on the same horizontal line provided in an embodiment of the present application;

[0081] Figure 1-3 This is a schematic diagram of a structure in which a powder feed port and a dispersion disk are on the same vertical line provided in an embodiment of the present application;

[0082] Figure 1-4 is a schematic structural diagram of a powder input device provided in an embodiment of the present application;

[0083] Figure 1-5 It is a schematic diagram of the connection structure of a stirring device and a powder input device provided in an embodiment of the present application;

[0084] Figure 1-6 It is a schematic diagram of the structure of a feed channel provided in an embodiment of the present application;

[0085] Figure 1-7 is a schematic structural diagram of another feed channel provided in an embodiment of the present application;

[0086] Figure 2 It is a flow chart of a stirring equipment control method provided in an embodiment of the present application;

[0087] Figure 3 is a flow chart of another stirring equipment control method provided in an embodiment of the present application;

[0088] Figure 4 is a flow chart of another stirring equipment control method provided in an embodiment of the present application;

[0089] Figure 5 It is a structural schematic diagram of a stirring system provided in an embodiment of the present application;

[0090] Figure 6 It is a structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0091] Reference numerals:

[0092] 10: tank body; 11: first regulating valve; 12: second regulating valve; 13: second stirring device; 14: first stirring device; 141: first driving assembly; 142: first stirring shaft; 143: dispersion disc; 144: butterfly paddle; 15: first mounting bracket; 20: cylinder body; 21: third regulating valve; 22: third stirring device; 221: second driving assembly; 222: second stirring shaft; 223: stirring blade; 224: scraping blade; 23: fourth regulating valve; 24: second mounting bracket; 30: powder feed pipe; 31: feed channel; 32: control valve; 33: controller; 34: vacuum equipment; 35: blowing device. DETAILED DESCRIPTION

[0093] In order to be able to understand the features and technical contents of the embodiments of the present application in more detail, the implementation of the embodiments of the present application is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present application. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0094] The terms "first", "second", etc. in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the embodiments of the present application described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0095] Unless otherwise stated, the term "plurality" means two or more.

[0096] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0097] Embodiment 1

[0098] The present application embodiment provides a schematic diagram of the structure of a stirring device. Figure 1-1 As shown, the stirring device includes a tank body 10 for containing liquid material, a powder feed port and a liquid feed port arranged on the tank body 10, and a first stirring device 14 arranged in the tank body 10. The tank body 10 of the stirring device is connected to the vacuum device through a first regulating valve 11. The tank body 10 of the stirring device is also connected to the exhaust removal system through a second regulating valve 12.

[0099] The powder feed port can be arranged at the waist of the tank body 10 or at the bottom of the tank body 10. The liquid feed port can be arranged at the top of the tank body 10 or at the waist of the tank body 10. The liquid feed port is connected to the liquid delivery system.

[0100] The first stirring device 14 includes a first driving assembly 141, a first stirring shaft 142, a dispersion disk 143 and a butterfly paddle 144. The first driving assembly 141 is fixedly mounted on the top of the tank body 10, the top of the first stirring shaft 142 is movably connected to the first driving assembly 141, the butterfly paddle 144 is fixedly mounted in the middle of the first stirring shaft 142 near the bottom, the first stirring shaft 142 is coaxially connected to the dispersion disk 143, and the dispersion disk 143 can be arranged at the bottom of the first stirring shaft 142 or in the middle of the first stirring shaft 142.

[0101] A plurality of first stirring devices 14 can be arranged in the tank body 10 in the stirring device. Meanwhile, a second stirring device 13 can also be arranged in the tank body 10 of the stirring device. The rotation speed of the second stirring device 13 is lower than the rotation speed of the first stirring device 14.

[0102] In addition, the powder feed port is arranged toward the dispersion disk 143, and the line between the powder feed port and the dispersion disk 143 intersects with the horizontal line but is not perpendicular, so that the powder input into the tank body is dispersed in the liquid material under the action of the dispersion disk.

[0103] For example, when the line connecting the powder feed port and the dispersion disk does not intersect the horizontal line, that is, the powder feed port and the dispersion disk are located on the same horizontal line, the specific setting position of the powder feed port can be as follows: Figure 1-2 As shown. When the powder feed port and the dispersion disk are located on the same horizontal line, the powder entering through the powder feed port may directly pass over the dispersion disk, so that part of the powder cannot be dispersed in the liquid material in time under the action of the dispersion disk. Similarly, when the line between the powder feed port and the dispersion disk is perpendicular to the horizontal line, it indicates that the powder feed port and the dispersion disk are located on the same vertical line. The specific setting position of the powder feed port can be as follows Figure 1-3As shown. At this time, the powder entering through the powder feed port may also directly pass over the dispersion disk and may float on the surface of the liquid material. The settings of these two positions will result in the powder being unable to be dispersed in the liquid material in time, and it will be difficult to mix the powder and the liquid material evenly during the mixing process of the liquid and the powder. Therefore, in the embodiment of the present application, by limiting the line between the powder feed port and the dispersion disk to intersect with the horizontal line but not perpendicular, the powder can be dispersed in the liquid material in time, so that during the mixing process of the liquid and the powder, the liquid and the powder can be mixed evenly in a shorter stirring time.

[0104] A first mounting frame 15 is further provided outside the tank body 10 of the stirring device, and the first mounting frame 15 is fixedly connected to the tank body 10 .

[0105] Combination Figure 1-4 The schematic diagram of the structure of the powder input device shown in FIG. The powder input device includes: a barrel 20 for accommodating powder, a powder feed port and a powder discharge port provided on the barrel 20, and an air blowing device provided on the barrel 20. The powder feed port is connected to the powder conveying system. The barrel of the powder input device is also connected to the centralized dust removal system through a third regulating valve.

[0106] The powder material feed port can be arranged at the top of the cylinder 20 or at the waist of the cylinder 20. The powder material discharge port is arranged at the bottom of the cylinder 20.

[0107] The blowing device can be Figure 1-2 The blowing device is shown as being arranged at the bottom of the cylinder 20. However, the blowing device can also be arranged at other positions of the cylinder 20, such as the waist, the top, etc. The blowing device is used to blow air into the cylinder, and the gas blown by the blowing device is an inert gas, such as nitrogen.

[0108] The powder input device also includes a third stirring device 22 disposed in the barrel 20. The third stirring device 22 includes a second driving assembly 221, a second stirring shaft 222, a stirring blade 223 and a scraping blade 224. The second driving assembly 221 is fixedly mounted on the top of the barrel 20, and the second stirring shaft 222 is movably connected to the second driving assembly 221. The scraping blade 224 is fixedly mounted on the second stirring shaft 222 through the stirring blade 223, and the scraping blade 224 is in contact with the inner wall of the barrel 20, and is used to scrape up the powder adhered to the inner wall of the barrel 20.

[0109] A second mounting frame 24 is further disposed outside the barrel 20 of the powder input device, and the second mounting frame 24 is fixedly connected to the barrel 20 .

[0110] In addition, combined Figure 1-5As shown, the powder material outlet of the powder input device can be connected to the powder material outlet of the stirring device through the powder feeding pipe 30. The powder feeding pipe 30 is provided with a control valve 32. In addition, the powder material outlet of the powder input device is connected to the powder feeding pipe 30 through the fourth regulating valve 23.

[0111] Combined with Figure 1-6 and Figure 1-7 As shown in the structural diagram of the feed channel, a plurality of feed channels 31 of different sizes can be provided at the end of the powder feed pipe 30 near the powder feed port; and a corresponding control valve 32 is provided on each feed channel. Exemplarily, the feed channel can be a pipe or a through hole. This can reduce the possibility of powder blocking the powder feed pipe.

[0112] Embodiment 2

[0113] Based on the first embodiment, the present application provides a flow chart of a method for controlling a stirring device. Figure 2 As shown, the stirring device control method includes:

[0114] Step S201, controlling the vacuum pumping equipment to perform a vacuum pumping operation on the tank body.

[0115] Exemplarily, the vacuuming device is installed on the tank body of the stirring device and communicates with the inside of the tank body of the stirring device. The vacuuming device is controlled to operate so as to perform a vacuuming operation on the inside of the tank body of the stirring device.

[0116] Step S202, when the vacuum degree in the tank body is within the preset vacuum degree range, control the vacuum pumping device to stop the vacuum pumping operation on the tank body, and control the control valve to open, so as to input the powder delivered by the powder input device into the tank body and mix it with the liquid material in the tank body; wherein, when the vacuum degree in the tank body is within the preset vacuum degree range, the powder cannot protrude from the liquid surface of the liquid material.

[0117] Exemplarily, the preset vacuum degree range may be directly preset by the user.

[0118] The preset vacuum range can also be determined by the following method: obtaining the liquid level of the liquid in the tank, obtaining the liquid pressure in the tank according to the liquid level, and determining the preset vacuum range according to the liquid pressure.

[0119] In an optional implementation of the embodiment of the present application, the liquid level of the liquid in the tank can be directly detected by a sensor, thereby obtaining the liquid level of the liquid in the tank. The inner diameter information of the tank, the density information of the liquid, and the weight information of the liquid in the tank can also be obtained; then the liquid level of the liquid in the tank can be obtained based on the weight information, density information, and inner diameter information.

[0120] If the tank is cylindrical, the inner diameter information of the tank includes the bottom area, radius or diameter of the tank. Correspondingly, the weight information includes the total weight information of the liquid. The weight information, density information, inner diameter information and the liquid level of the liquid in the tank satisfy the following formula:

[0121] H=W / P / O1

[0122] Among them, H represents the liquid level height of the liquid in the tank, W represents the total weight information of the liquid in the tank, and O1 represents the bottom area of ​​the tank.

[0123] If the tank is Figure 1-1 The irregular shape shown in the figure, the inner diameter information of the tank body includes the radius r or diameter d of the part other than the head, or the bottom area O2 of the part other than the head, that is, the projection area of ​​the tank body on the horizontal plane. Correspondingly, the weight information includes the liquid weight information of the head part and the total weight information of the liquid material; the weight information, density information, inner diameter information and the liquid level height of the liquid material in the tank body satisfy the following formula:

[0124] H=(W-W1) / P / (d / 2)2 / 3.14=(W-W1) / P / (r 2 ×3.14)=(W-W1) / P / O2

[0125] Among them, H represents the liquid level height of the liquid in the tank body, W represents the total weight information of the liquid in the tank body, W1 represents the liquid weight information of the head part, d represents the diameter of the part other than the head, r represents the radius of the part other than the head, O2 represents the projected area of ​​the tank body on the horizontal plane, and P represents the density information of the liquid.

[0126] In an optional implementation of the above embodiment, the target vacuum degree range corresponding to the liquid pressure can be determined according to the corresponding relationship between different liquid pressures and vacuum degree ranges; the target vacuum degree range is a preset vacuum degree range.

[0127] Another implementation method for determining the preset vacuum degree range according to the liquid pressure is: determining the target vacuum degree corresponding to the liquid pressure according to the corresponding relationship between different liquid pressures and vacuum degrees; and obtaining the preset vacuum degree range according to the target vacuum degree and the preset difference range.

[0128] Specifically, the target vacuum degree may be taken as the minimum limit value of the preset vacuum degree range, and the sum of the target vacuum degree and the preset difference range may be taken as the maximum limit value of the preset vacuum degree range.

[0129] Similarly, the target vacuum degree may be used as the maximum limit value of the preset vacuum degree range, and the difference between the target vacuum degree and the preset difference range may be used as the minimum limit value of the preset vacuum degree range.

[0130] Step S203, when it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, control the vacuum pumping equipment to perform a vacuum pumping operation on the tank body until the vacuum degree in the tank body reaches the preset safety vacuum degree threshold; wherein the safety vacuum degree threshold is greater than the warning vacuum degree threshold, and the safety vacuum degree threshold and the warning vacuum degree threshold are within the preset vacuum degree range.

[0131] Optionally, the warning vacuum degree threshold value may be equal to the minimum limit value of the preset vacuum degree range. The warning vacuum degree threshold value may also be greater than the minimum limit value of the preset vacuum degree range, but less than the maximum limit value of the preset vacuum degree range.

[0132] In an optional implementation of the embodiment of the present application, if the warning vacuum degree threshold is equal to the minimum limit value of the preset vacuum degree range, then when it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, on the basis of controlling the vacuum pumping device to perform a vacuum pumping operation on the tank body, the control valve can also be controlled to close. When the warning vacuum degree threshold is equal to the minimum limit value of the preset vacuum degree range, and the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, it can be determined that the vacuum degree in the tank body is lower than the minimum limit value of the preset vacuum degree range. If the control valve is in an open state at this time, not only can the powder not be input into the tank body, but the liquid material in the tank body may even flow back. Therefore, the control valve can be closed at this time to prevent the liquid material from flowing back.

[0133] In another optional implementation, if the warning vacuum degree threshold is greater than the minimum limit value of the preset vacuum degree range, but less than the maximum limit value of the preset vacuum degree range. Then, when it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, the vacuum pumping device is controlled to perform a vacuum pumping operation on the tank body, and the control valve is controlled to maintain an open state. In the case where the warning vacuum degree threshold is greater than the minimum limit value of the preset vacuum degree range, but less than the maximum limit value of the preset vacuum degree range, even if the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, the vacuum degree in the tank body is still within the preset vacuum degree range. When the vacuum degree in the tank body is within the preset vacuum degree range, the powder can be normally input into the tank body and will not protrude from the liquid surface of the liquid material. Therefore, at this time, the control valve can be controlled not to be closed, but to be controlled to maintain an open state to maintain the input of powder.

[0134] In another optional implementation, if the warning vacuum degree threshold is greater than the minimum limit value of the preset vacuum degree range, but less than the maximum limit value of the preset vacuum degree range, then when it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, the vacuum pumping device is controlled to perform a vacuum pumping operation on the tank body and the control valve is closed.

[0135] Similarly, the safety vacuum degree threshold value may be equal to the maximum limit value of the preset vacuum degree range. The safety vacuum degree threshold value may also be less than the maximum limit value of the preset vacuum degree range, but greater than the minimum limit value of the preset vacuum degree range. Furthermore, when the vacuum degree in the tank reaches the preset safety vacuum degree threshold value, the control valve may be opened or closed.

[0136] The stirring device control method provided in the embodiment of the present application controls the vacuum device to perform a vacuum operation on the tank body of the stirring device, so that the vacuum degree in the tank body is within a preset vacuum degree range. Since the powder transported by the powder input device cannot protrude from the liquid surface of the liquid material when the vacuum degree in the tank body is within the preset vacuum degree range, the controlled valve is controlled to open when the vacuum degree in the tank body is within the preset vacuum degree range, which not only allows the powder transported by the powder input device to enter the tank body smoothly, but also ensures that the powder cannot protrude from the liquid surface of the liquid material. In this way, in the subsequent process of controlling the stirring device to mix the powder and the liquid material, the powder and the liquid material can be mixed more quickly and evenly.

[0137] Embodiment 3

[0138] The present application embodiment provides a flow chart of another stirring device control method. Figure 3 As shown, the stirring device control method may include the following steps:

[0139] Step S301, controlling the vacuum pumping equipment to perform a vacuum pumping operation on the tank body.

[0140] Step S302, when the vacuum degree in the tank body is within a preset vacuum degree range, control the control valve to open so as to input the powder delivered by the powder input device into the tank body for mixing with the liquid material in the tank body; wherein, when the vacuum degree in the tank body is within the preset vacuum degree range, the powder cannot protrude from the liquid surface of the liquid material.

[0141] Step S303, obtaining the current vacuum degree in the tank and the current speed at which the powder enters the tank.

[0142] Specifically, a pressure sensor is installed in the tank body, and the pressure sensor is in contact with the liquid surface. The pressure sensor is used to detect the liquid surface pressure in the tank body. The pressure sensor is used to detect the current liquid surface pressure in the tank body, and the current vacuum degree in the tank body is obtained according to the detected current liquid surface pressure. The relationship between the current liquid surface pressure and the current vacuum degree satisfies the following formula:

[0143] Pvac=Patm-Pliquid.

[0144] Among them, Pliquid represents the current liquid surface pressure, Pvac represents the current vacuum degree, and Patm represents the atmospheric pressure.

[0145] As the powder is input, it will occupy part of the space inside the tank, causing the gas volume to decrease. While the total amount of gas remains unchanged, the decrease in gas volume will lead to an increase in gas pressure, that is, an increase in liquid surface pressure and a decrease in vacuum. Therefore, the current vacuum in the tank can be determined by obtaining the current liquid surface pressure in the tank.

[0146] Step S304, determining a target vacuum degree corresponding to the current entry speed according to the preset corresponding relationship between the entry speed and the vacuum degree and the current entry speed.

[0147] Specifically, the weight of the powder that has entered the tank can be obtained, and the target corresponding relationship corresponding to the powder weight can be determined according to the corresponding relationship between the entry speed and the vacuum degree under different powder weights, and the target vacuum degree corresponding to the current entry speed can be determined in the target corresponding relationship according to the current entry speed. The target corresponding relationship includes a preset corresponding relationship between the entry speed and the vacuum degree.

[0148] The corresponding relationship between the entry speed and the vacuum degree under different powder weights is pre-constructed. Each powder weight may include multiple sets of corresponding relationships between the entry speed and the vacuum degree.

[0149] Step S305, when the current vacuum degree is lower than the target vacuum degree, controlling the vacuum pumping equipment to maintain the vacuum pumping operation on the tank body.

[0150] The stirring equipment control method provided in the embodiment of the present application obtains the current vacuum degree in the tank body and the current entry speed of the powder input into the tank body, and then determines the target vacuum degree corresponding to the current entry speed according to the preset corresponding relationship between the entry speed and the vacuum degree and the current entry speed, and finally controls the vacuum pumping device to maintain the vacuum pumping operation on the tank body when the current vacuum degree is lower than the target vacuum degree. In this way, the vacuum degree in the tank body can reach the target vacuum degree, the entry speed of the powder input into the tank body can be guaranteed, and the possibility of liquid backflow can be reduced.

[0151] Embodiment 4

[0152] Based on the first embodiment, the present application provides another control method based on the stirring device. Figure 4 As shown, the stirring device control method includes:

[0153] Step S401, controlling the vacuum pumping equipment to perform a vacuum pumping operation on the tank body.

[0154] Step S402, when the vacuum degree in the tank body is within a preset vacuum degree range, the control valve is controlled to open so as to input the powder delivered by the powder input device into the tank body to mix with the liquid material in the tank body; wherein, when the vacuum degree in the tank body is within the preset vacuum degree range, the powder cannot protrude from the liquid surface of the liquid material.

[0155] Step S403, obtaining the current speed at which the powder enters the tank.

[0156] Step S404: When the current entry speed is less than or equal to a preset speed threshold, the vacuuming device is controlled to maintain the vacuuming operation on the tank body.

[0157] Step S405, when the current entry speed is greater than the preset speed threshold, control the vacuum pumping device to stop the vacuum pumping operation on the tank body until the current entry speed of the powder into the tank body is less than or equal to the preset speed threshold.

[0158] The stirring equipment control method provided in the embodiment of the present application obtains the current entry speed of the powder into the tank body, and then controls the vacuuming equipment to maintain the vacuuming operation on the tank body when the current entry speed is less than or equal to the preset speed threshold, and controls the vacuuming equipment to stop the vacuuming operation on the tank body when the current entry speed is greater than the preset speed threshold, until the current entry speed of the powder into the tank body is less than or equal to the preset speed threshold. In this way, the entry speed of the powder into the tank body can be maintained at the preset speed threshold, thereby reducing the possibility of liquid backflow.

[0159] On the basis of the above-mentioned embodiment, in order to reduce the possibility of powder blocking the powder feed pipe, a target feed channel can be determined among multiple feed channels according to the preset correspondence between different powders and feed channels. The control valve corresponding to the target feed channel is controlled to open. In this way, different feed channels can be used to transport different powders, reducing the situation of blocking the feed channel due to excessively large powder particles.

[0160] Specifically, the preset correspondence between different powders and feed channels may include the correspondence between different powder types and feed channels. Correspondingly, the powder type information of the powder conveyed by the powder input device may be obtained; then, the feed channel corresponding to the powder type information is determined according to the correspondence between different powder types and feed channels, and the feed channel corresponding to the powder type information is determined as the target feed channel.

[0161] Optionally, the preset correspondence between different powders and feed channels may also include the correspondence between different bulk densities and feed channels. Correspondingly, the bulk density information of the powder transported by the powder input device is also obtained; then, the feed channel corresponding to the bulk density information is determined according to the correspondence between the different bulk densities and feed channels, and is used as the target feed channel.

[0162] In addition, based on the aforementioned embodiment, in order to reduce the situation where the powder breaks through the liquid surface due to excessive powder entering and being unable to be dispersed and stirred in time, the control valve can be closed each time the continuous input of powder reaches a preset pause condition, and the control valve can be reopened after a preset waiting time; wherein, the first stirring device is in operation during the preset waiting time.

[0163] Optionally, the first stirring device can be controlled to be in a continuous running state, and each time the continuous input of powder reaches a preset pause condition, the control valve is closed, and the control valve is reopened after a preset waiting time. In this way, the first stirring device is in a running state during the input of powder, and is also in a running state during the closing process of the control valve. This allows the first stirring device to have enough time to stir the powder input into the tank, and avoid the powder protruding from the liquid surface due to excessive input of powder.

[0164] Optionally, during the powder input process, the first stirring device can be stopped, and then the first stirring device can be controlled to stir the liquid material during the preset waiting time after the control valve is closed. In this way, after the powder in the tank reaches a certain amount, the powder input into the tank can be stopped, and the first stirring device can be controlled to mix the liquid material and the powder before continuing to add the powder, so that the first stirring device can have enough time to stir the powder input into the tank, thereby avoiding the powder protruding from the liquid surface due to excessive powder input.

[0165] Exemplarily, the preset pause condition may be expressed as a preset input time or a preset powder input amount, etc.

[0166] If the preset pause condition is represented by the input time, correspondingly, when the duration of each continuous input of powder reaches the preset input time, the control valve is closed, and the control valve is reopened after the preset waiting time.

[0167] If the preset temporary condition is represented by a preset powder input amount, correspondingly, when the total amount of powder continuously input each time reaches the preset powder input amount, the control valve is closed, and the control valve is reopened after a preset waiting time.

[0168] Embodiment 5

[0169] The present application provides a structural schematic diagram of a stirring system, such as Figure 5As shown, the stirring system includes a stirring device, a powder input device and a controller. The controller 33 is respectively connected to the vacuum device 34 and the control valve 32. The controller 33 is used to execute the stirring device control method of the above embodiment during operation.

[0170] The controller 33 may also be connected to the blowing device 35 , the first regulating valve 11 , the second regulating valve 12 , the third regulating valve 21 , the fourth regulating valve 23 , the first stirring device 14 , the second stirring device 13 , and the third stirring device 22 in communication.

[0171] The controller may be arranged on the stirring device, may be arranged on the powder input device, or may be arranged on an electronic device other than the stirring device and the powder input device.

[0172] Embodiment 6

[0173] This embodiment further illustrates the present application based on the fifth embodiment.

[0174] In the case where the powder conveying system inputs powder into the cylinder of the powder input device. The controller obtains the bulk density of the powder, and determines the target blowing control information corresponding to the bulk density according to the preset correspondence between different bulk densities and the blowing control information. The blowing control information includes the blowing time and the blowing flow rate. The controller controls the blowing device according to the blowing control information so that the blowing device performs a blowing operation on the cylinder until the mixing ratio between the powder and the gas in the cylinder reaches a preset ratio threshold. At the same time, the controller controls the third stirring device to stir the powder.

[0175] When the liquid delivery system inputs liquid into the tank, the controller can control the second stirring device to operate at the second speed to stir the liquid input into the tank. Since some powder may be deposited at the bottom of the tank, the liquid is stirred when the liquid is input, so that the powder deposited at the bottom of the tank can be mixed evenly with the re-input liquid. At the same time, the liquid can be kept in a stirring state. In this way, when the powder is subsequently input, the powder can be dispersed in the liquid more quickly, thereby achieving the effect of mixing the liquid and powder more evenly.

[0176] Optionally, the user may input a preset vacuum degree range through a control interface corresponding to the controller, so that the controller acquires the preset vacuum degree range.

[0177] Optionally, the controller can also obtain the first weight information of the liquid in the tank when the liquid level in the tank reaches the first preset liquid level, that is, when the height of the liquid in the tank is equal to the height of the head, obtain the weight information of the liquid contained in the head. Then, when the liquid delivery system stops inputting liquid into the tank, obtain the total weight information of the liquid in the tank. Finally, the second weight information is obtained by subtracting the first weight information from the total weight information of the liquid, and then the second weight information is divided by the density information of the liquid and divided by the bottom area of ​​the tank to obtain the liquid level in the tank. Finally, the liquid pressure in the tank is calculated using the liquid level. Afterwards, the target vacuum corresponding to the calculated liquid pressure can be determined according to the corresponding relationship between different liquid pressures and vacuum degrees, and then the preset vacuum range is determined based on the preset difference range and the target vacuum as the minimum limit value.

[0178] When the preset vacuum range is obtained, the controller can control the first regulating valve to open, so that the vacuum pumping device performs a vacuum pumping operation on the tank body until the vacuum degree in the tank body is within the preset vacuum range. At the same time, the controller can control the first stirring device in the tank body to operate at a first speed, so that the liquid material in the tank body is in a mixed stirring state. The first speed is higher than the second speed.

[0179] When the vacuum degree in the tank body is within the preset vacuum degree range, the controller can control the vacuum pumping device to stop the vacuum pumping operation on the tank body. At the same time, the fourth regulating valve and the control valve are opened, so that the powder in the powder input device can be input into the tank body through the powder feeding pipe and sprayed on the dispersion disk of the first stirring device in the tank body. In this way, through the powerful dispersion function of the dispersion disk, the powder can be quickly broken up and dispersed in the surrounding liquid material, so that the liquid material can quickly infiltrate the entering powder. In addition, through the butterfly slurry in the first stirring device, the infiltrated powder can be quickly stirred and mixed with the surrounding liquid material.

[0180] When it is detected that the vacuum degree in the tank body is lower than the preset warning vacuum degree threshold, the vacuum pumping equipment can be controlled to perform vacuum pumping operation on the tank body, and the control valve can be closed until the vacuum degree in the tank body reaches the preset safety vacuum degree threshold, and then the control valve is opened.

[0181] It can be understood that the embodiments described in any of the above embodiments are also applicable to other embodiments without conflict, and will not be repeated here for the sake of brevity.

[0182] Combination Figure 6As shown, an embodiment of the present application provides an electronic device 600, including a processor 601, a memory 602 and a communication interface 603. Optionally, the electronic device may also include a bus 604. Among them, the processor 601, the communication interface 603, and the memory 602 can communicate with each other through the bus 604. The communication interface 603 is used to communicate with the vacuum equipment and the control valve. The processor 601 can call the logic instructions in the memory 602 to execute the stirring device control method of the above embodiment.

[0183] Among them, the vacuum equipment is connected to the stirring equipment through the tank body of the stirring equipment; the tank body of the stirring equipment is also provided with a powder feed port; the powder feed port of the stirring equipment is connected to the powder input device through a control valve.

[0184] In addition, the logic instructions in the memory 602 described above may be implemented in the form of software functional units and when sold or used as independent products, may be stored in a computer-readable storage medium.

[0185] The memory 602 is a computer-readable storage medium that can be used to store software programs and computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present application. The processor 601 executes the functional application and data processing by running the program instructions / modules stored in the memory 602, that is, the stirring device control method in the above embodiment is implemented.

[0186] The memory 602 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application required for at least one function; the data storage area may store data created according to the use of the terminal device, etc. In addition, the memory 602 may include a high-speed random access memory and may also include a non-volatile memory.

[0187] The electronic device may be a computer or a server, etc.

[0188] An embodiment of the present application provides a storage medium storing computer executable instructions, wherein the computer executable instructions are configured to execute the above-mentioned stirring device control method.

[0189] An embodiment of the present application provides a computer program product, which includes a computer program stored on a storage medium, and the computer program includes program instructions. When the program instructions are executed by a computer, the computer executes the above-mentioned stirring device control method.

[0190] The computer-readable storage medium mentioned above may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0191] The technical solution of the embodiment of the present application can be embodied in the form of a software product, which is stored in a storage medium and includes one or more instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present application. The aforementioned storage medium can be a non-transient storage medium, including: a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk, etc., which can store program codes, or a transient storage medium.

[0192] In the embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.

[0193] The above description is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application may have various changes 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. At the same time, the above embodiments can be combined with each other to form new embodiments without conflict.

Claims

1. A stirring equipment control method, characterized in that: The stirring device comprises a tank body, a powder feed port arranged on the tank body, the powder feed port of the stirring device is connected to a powder input device through a control valve, and the stirring device is also connected to a vacuum device through the tank body; the method comprises: Controlling the vacuum pumping device to perform a vacuum pumping operation on the tank body; When the vacuum degree in the tank body is within a preset vacuum degree range, the control valve is controlled to open so that the powder transported by the powder input device is input into the tank body to be mixed with the liquid material in the tank body; wherein, when the vacuum degree in the tank body is within the preset vacuum degree range, the powder cannot protrude from the liquid surface of the liquid material.

2. The method according to claim 1, characterized in that When the vacuum degree in the tank body is within a preset vacuum degree range, the method further includes: controlling the vacuum pumping device to stop performing a vacuum pumping operation on the tank body.

3. The method according to claim 2, characterized in that After controlling the vacuuming device to stop vacuuming the tank, the method further includes: When it is detected that the vacuum degree in the tank body is lower than a preset warning vacuum degree threshold, the vacuum pumping device is controlled to perform a vacuum pumping operation on the tank body until the vacuum degree in the tank body reaches a preset safety vacuum degree threshold; The safety vacuum degree threshold is greater than the warning vacuum degree threshold, and the safety vacuum degree threshold and the warning vacuum degree threshold are within the preset vacuum degree range.

4. The method according to claim 3, characterized in that In the case where it is detected that the vacuum degree in the tank is lower than a preset warning vacuum degree threshold, the method further includes: closing the control valve; When the vacuum degree in the tank reaches a preset safety vacuum degree threshold, the method further includes: opening the control valve.

5. The method according to claim 1, characterized in that The method further comprises: Acquire the current vacuum degree in the tank body and the current entry speed of the powder into the tank body; According to the preset corresponding relationship between the entry speed and the vacuum degree and the current entry speed, determining the target vacuum degree corresponding to the current entry speed; When the current vacuum degree is lower than the target vacuum degree, the vacuum pumping device is controlled to maintain the vacuum pumping operation on the tank body.

6. The method according to claim 1, characterized in that The method further comprises: Obtaining a current entry speed of the powder into the tank; When the current entry speed is less than or equal to a preset speed threshold, controlling the vacuum pumping device to maintain the vacuum pumping operation on the tank body; When the current entry speed is greater than a preset speed threshold, the vacuuming device is controlled to stop the vacuuming operation on the tank body until the current entry speed of the powder into the tank body is less than or equal to the preset speed threshold.

7. The method according to any one of claims 1 to 6, characterized in that: The powder feed port is connected to the powder input device through a powder feed pipe, and the end of the powder feed pipe close to the powder feed port is provided with a plurality of feed channels of different sizes; Each of the feed channels is provided with a corresponding control valve; Controlling the control valve to open, comprising: Determining a target feeding channel among the plurality of feeding channels according to a preset correspondence relationship between different powders and the feeding channels; The control valve corresponding to the target feed channel is controlled to open.

8. The method according to claim 7, characterized in that The correspondence between different powders and feed channels includes the correspondence between different powder types and feed channels; determining a target feed channel from the plurality of feed channels according to the correspondence between different powders and feed channels includes: Acquire information about the type of powder conveyed by the powder input device; According to the correspondence between different powder types and feeding channels, the feeding channel corresponding to the powder type information is determined as the target feeding channel.

9. The method according to claim 7, characterized in that: The correspondence between the different powders and the feed channels includes the correspondence between different bulk densities and the feed channels, and determining a target feed channel from the multiple feed channels according to the correspondence between the different powders and the feed channels includes: Obtaining bulk density information of powder conveyed by the powder input device; According to the corresponding relationship between different stacking densities and feed channels, the feed channel corresponding to the stacking density information is determined as the target feed channel.

10. The method according to any one of claims 1 to 6, characterized in that: The method further comprises: Obtaining the liquid level of the liquid material in the tank; Obtaining the liquid pressure in the tank according to the liquid level; The preset vacuum degree range is determined according to the liquid pressure.

11. The method according to claim 10, characterized in that Obtaining the liquid level of the liquid material in the tank body includes: Obtaining the inner diameter information of the tank body, the density information of the liquid material, and the weight information of the liquid material in the tank body; The liquid level of the liquid material in the tank body is obtained according to the weight information, the density information and the inner diameter information.

12. The method according to claim 10, characterized in that Determining the preset vacuum range according to the liquid pressure includes: According to the corresponding relationship between different liquid pressures and vacuum ranges, a target vacuum range corresponding to the liquid pressure is determined; the target vacuum range is the preset vacuum range.

13. The method according to claim 10, characterized in that Determining the preset vacuum range according to the liquid pressure includes: Determining the target vacuum degree corresponding to the liquid pressure according to the corresponding relationship between different liquid pressures and vacuum degrees; The preset vacuum degree range is obtained according to the target vacuum degree and a preset difference range.

14. The method according to any one of claims 1 to 6, characterized in that: The powder feed port is arranged at the bottom or waist of the tank body.

15. The method according to any one of claims 1 to 6, characterized in that: The stirring equipment also includes a first stirring device arranged in the tank body, and a dispersion disk is arranged on the first stirring device; the powder feed port is arranged toward the dispersion disk, and a line connecting the powder feed port and the dispersion disk intersects with a horizontal line but is not perpendicular to it, so that the powder input into the tank body is dispersed in the liquid material under the action of the dispersion disk.

16. The method according to any one of claims 1 to 6, characterized in that: The stirring device further includes a first stirring device disposed in the tank body, and the method further includes: Each time the continuous input of powder reaches a preset pause condition, the control valve is closed, and the control valve is reopened after a preset waiting time; wherein the first stirring device is in operation during the preset waiting time.

17. The method according to any one of claims 1 to 6, characterized in that: The powder input device comprises: a cylinder for containing the powder, and a blowing device arranged on the cylinder; before controlling the control valve to open, the method further comprises: The blowing device is controlled to perform a blowing operation on the cylinder until the mixing ratio between the powder and the gas in the cylinder reaches a preset ratio threshold.

18. A stirring system, characterized in that: It includes a stirring device, a powder input device and a controller; The stirring device comprises a tank body, a powder feed port arranged on the tank body, the powder feed port of the stirring device is connected to the powder input device through a control valve, and the stirring device is also connected to a vacuum device through the tank body; The controller is communicatively connected to the vacuum pumping device and the control valve respectively, and is used to execute the stirring device control method according to any one of claims 1 to 17 during operation.

19. An electronic device, characterized in that: Includes processor, memory, and communication interface; The memory stores computer executable instructions that can be executed by the processor, The communication interface is used to communicate with the vacuum equipment and the control valve; The vacuum pumping device is connected to the stirring device through the tank body of the stirring device; the tank body of the stirring device is also provided with a powder feed port; the powder feed port of the stirring device is connected to the powder input device through the control valve; The processor executes the computer executable instructions stored in the memory to implement the stirring device control method according to any one of claims 1 to 17.

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