A proportioning and mixing device and method for chemical material production

Abstract

This invention relates to the field of chemical material mixing technology, specifically to a proportioning and mixing device and method for chemical material production, comprising a base, a mixing cylinder, and mixing components. When there is no space for the moving block to move downwards in the bottom area of ​​the mixing cylinder, the flow valve opens, and the mixture of powder and liquid flows through the flow channel to the top of the moving block; the flow valve closes, and the stirring unit stirs the mixture above the moving block again, then the moving block moves upwards, and the scraping mechanism scrapes off the clumps of powder or powder particles adhering to the inner wall of the mixing cylinder again; the cycle operation allows the mixture to continuously flow and mix above and below the moving block; thereby scraping off the powder or clumps adhering to the inner wall of the mixing cylinder and re-stirring, and at the same time, by forcibly reversing the flow field of the mixture in the upper and lower chambers, the circumferential vortex and local dead zone of traditional stirring can be broken, achieving high-precision and high-uniformity mixing of powder and liquid materials.

Description

Technical Field

[0001] This invention relates to the field of chemical material mixing technology, and in particular to a proportioning and mixing device and method for chemical material production. Background Technology

[0002] In chemical material production, the precise proportioning and efficient mixing of powder and liquid phases are core processes that determine product performance, batch consistency, and production stability. This process is widely used in mainstream chemical fields such as new energy lithium battery pastes, coatings and inks, functional adhesives, and modified polymer materials. Currently, the industry commonly uses batch mixing devices for liquid-powder system proportioning and mixing. These devices mainly consist of a pressure-bearing mixing cylinder, a stirring drive mechanism, a multi-component metering feeding unit, and an automated control system. They can quantitatively and sequentially feed materials according to formulation requirements, achieving dispersion, wetting, and homogeneous mixing of the two phases through the mechanical shearing and flow field disturbance of the stirring blades.

[0003] However, in actual industrial applications, existing proportioning and mixing devices easily generate dust when powder is fed into the cylinder through the upper feed inlet. A large amount of dry powder adheres to the dry areas such as the cylinder wall and the inner wall of the top cover above the liquid level, preventing it from fully contacting the liquid phase and participating in the main mixing process. At the same time, ultrafine and hydrophobic powders commonly used in chemical production are difficult to be quickly and fully wetted by the liquid phase, easily forming agglomerates that encapsulate the dry powder. Under the action of centrifugal force during stirring, these agglomerates are thrown to the near-wall blind area of ​​the cylinder wall and deposited and adhere. The electrostatic adsorption effect generated during stirring further aggravates the adhesion of powder to the wall surface. This phenomenon directly leads to inaccurate proportioning and uneven mixing, affecting product quality and increasing safety hazards. Therefore, there is an urgent need for a proportioning and mixing device for chemical material production that can reduce powder adhesion on the inner wall of the cylinder and improve the uniformity of liquid-solid mixing. Summary of the Invention

[0004] The purpose of this invention is to provide a proportioning and mixing device and method for chemical material production, which solves the problem in the prior art that when powder is fed into the cylinder through the upper feed port, dust is easily stirred up, and a large amount of dry powder adheres to the dry areas such as the cylinder wall and the inner wall of the top cover above the liquid level, and cannot fully contact the liquid phase material and participate in the main mixing throughout the process.

[0005] To achieve the above objectives, the present invention provides a proportioning and mixing device for chemical material production, comprising a base and a mixing cylinder, wherein the mixing cylinder is installed above the base and a mixing assembly; The mixing assembly includes a moving block, a sealing ring, two scraping mechanisms, multiple flow valves, and a stirring unit. The moving block has multiple flow grooves and is located inside the mixing cylinder. The sealing ring is sleeved on the outside of the moving block and contacts the inner wall of the mixing cylinder. The two scraping mechanisms are respectively disposed on both sides of the moving block. The multiple flow valves are sequentially disposed on the corresponding flow grooves. The stirring unit is disposed on both sides of the moving block.

[0006] The mixing component further includes two high-pressure injection mechanisms, which are symmetrically arranged above and below the moving block. The high-pressure jetting mechanism includes multiple high-pressure pumps, multiple water inlet pipes, and multiple high-pressure nozzles. The multiple high-pressure pumps are sequentially arranged on one side of the movable block. The multiple water inlet pipes are respectively connected to the water inlet end of the corresponding high-pressure pump, and the multiple high-pressure nozzles are respectively connected to the water outlet end of the corresponding high-pressure pump.

[0007] The stirring unit includes a lower stirring mechanism and multiple upper stirring mechanisms. The lower stirring mechanism is located on one side of the moving block, and the multiple upper stirring mechanisms are sequentially located on the other side of the moving block.

[0008] The lower stirring mechanism includes a lower stirring component and multiple lower stirring plates. The lower stirring component is disposed inside the moving block, and the output end of the lower stirring component passes through the moving block and is fixedly connected to the multiple lower stirring plates.

[0009] The upper stirring mechanism includes an upper stirring component and multiple upper stirring plates. The upper stirring component is disposed inside the moving block, and the output end of the upper stirring component passes through the moving block and is fixedly connected to the multiple upper stirring plates.

[0010] The scraping mechanism includes a scraper, a wear-resistant protective layer, a pressure sensor, and a spare scraper block. The scraper is disposed on one side of the moving block, the wear-resistant protective layer is disposed on one side of the scraper, and the wear-resistant protective layer is located between the scraper and the inner wall of the mixing cylinder. The pressure sensor is disposed on the scraper, and the spare scraper block is disposed on the outside of the sealing ring and located between the sealing ring and the mixing cylinder.

[0011] The mixing assembly further includes a cover unit, which includes multiple cover components, a cover plate, and an adjustment mechanism. The multiple cover components are sequentially arranged above the base, and the output ends of the multiple cover components are fixedly connected to the cover plate. The cover plate covers the top of the mixing cylinder, and the adjustment mechanism is arranged on the cover plate.

[0012] The adjustment mechanism includes an internal lifting component, a pressing adjustment component, and a pressing plate. The pressing adjustment component and the internal lifting component are both located above the cover plate. The output end of the pressing adjustment component passes through the cover plate and is fixedly connected to the pressing plate. The output end of the internal lifting component passes through the cover plate and the pressing plate in sequence and is fixedly connected to the moving block.

[0013] The mixing component further includes a feed inlet and a discharge outlet, which are sequentially disposed on the mixing cylinder.

[0014] The present invention also provides a method for proportioning and mixing chemical materials for production, using the above-described apparatus for proportioning and mixing chemical materials for production, comprising the following steps: Powder and liquid raw materials are added to the mixing cylinder according to the chemical material ratio; The movable block is inserted into the mixing cylinder, and the mixing cylinder is sealed by the sealing ring. The stirring unit is activated to stir and mix the chemical materials inside the mixing cylinder; After the stirring reaches the preset time, the moving block moves down and the scraping mechanism scrapes off the powder adhering to the inner wall of the mixing cylinder. When there is no space for the moving block to move down in the bottom area of ​​the mixing cylinder, the flow valve opens, and the mixture of powder and liquid flows through the flow channel to the top of the moving block; When the flow valve is closed, the stirring unit stirs the mixture above the moving block again, and then the moving block moves upward, and the scraping mechanism scrapes off the clumps of powder or powder particles attached to the inner wall of the mixing cylinder again. This cycle allows the mixture to flow and mix continuously above and below the moving block, while a scraping operation prevents it from adhering to the inner wall of the mixing cylinder, ultimately completing the mixing of powder and liquid.

[0015] This invention discloses a mixing apparatus and method for chemical material production. The apparatus involves feeding powder and liquid raw materials into a mixing cylinder according to a chemical material ratio. A movable block is inserted into the mixing cylinder, and the mixing cylinder is sealed by a sealing ring. A stirring unit is activated to stir and mix the chemical materials inside the mixing cylinder. After stirring for a preset time, the movable block moves downward, and a scraping mechanism scrapes away the powder adhering to the inner wall of the mixing cylinder. When there is no space for the movable block to move downward in the bottom area of ​​the mixing cylinder, a flow valve opens, and the mixture of powder and liquid flows through a flow channel to above the movable block. The flow valve closes, the stirring unit stirs the mixture above the movable block again, and then the movable block moves upward again, and the scraping mechanism scrapes away any clumps of powder or powder particles adhering to the inner wall of the mixing cylinder. This cycle repeats, allowing the mixture to continuously flow and stir above and below the movable block, while simultaneously scraping to prevent it from adhering to the inner wall of the mixing cylinder, ultimately completing the mixing of the powder and liquid. This allows the mixture to continuously flow in opposite directions and be simultaneously stirred between the upper and lower chambers of the moving block. Combined with the wall-scraping action of the moving block throughout its entire stroke, this completely eliminates powder adhesion and scaling on the inner wall of the mixing cylinder. The scraped-off free powder and agglomerated materials can immediately re-enter the mixture to participate in the homogenization process, fundamentally preventing inaccurate proportions caused by powder sticking to the walls. Furthermore, the forced flow reversal between the upper and lower chambers breaks down the circumferential eddies and local dead zones of traditional stirring, significantly enhancing the dispersion and mass transfer efficiency of the liquid and solid phases, ultimately achieving high-precision and high-uniformity mixing of powder and liquid materials. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of the chemical material production proportioning and mixing device of the present invention.

[0018] Figure 2 This is a cross-sectional view of the chemical material production proportioning and mixing device of the present invention.

[0019] Figure 3 This is the invention Figure 2 Enlarged view of the local structure at point A.

[0020] Figure 4 This is the invention Figure 2 Enlarged view of the local structure at point B.

[0021] Figure 5 This is a schematic diagram of the structure of the movable block of the present invention.

[0022] Figure 6 This is a flowchart of the steps of the chemical material production proportioning and mixing method of the present invention.

[0023] 1-Base, 2-Mixing cylinder, 3-Moving block, 4-Sealing ring, 5-Flow valve, 6-Flow groove, 7-High pressure pump, 8-Water inlet pipe, 9-High pressure nozzle, 10-Lower stirring component, 11-Lower stirring plate, 12-Upper stirring component, 13-Upper stirring plate, 14-Scraper, 15-Wear-resistant protective layer, 16-Pressure sensor, 17-Spare scraper, 18-Covering component, 19-Cover plate, 20-Internal lifting component, 21-Pressing adjustment component, 22-Pressing plate, 23-Feed inlet, 24-Discharge outlet. Detailed Implementation

[0024] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0025] Please see Figures 1 to 5 The present invention provides a proportioning and mixing device for the production of chemical materials, including a base 1 and a mixing cylinder 2, wherein the mixing cylinder 2 is installed above the base 1, and also includes a mixing component; The mixing assembly includes a moving block 3, a sealing ring 4, two scraping mechanisms, multiple flow valves 5, and a stirring unit. The moving block 3 has multiple flow grooves 6 and is located inside the mixing cylinder 2. The sealing ring 4 is sleeved on the outside of the moving block 3 and contacts the inner wall of the mixing cylinder 2. The two scraping mechanisms are respectively arranged on both sides of the moving block 3. The multiple flow valves 5 are sequentially arranged in the corresponding flow grooves 6. The stirring unit is arranged on both sides of the moving block 3.

[0026] In this embodiment, the base 1 provides a stable installation support foundation for the entire mixing device, ensuring the structural stability of the device during the mixing process and avoiding the impact of vibrations caused by high-speed stirring and material flow on the mixing accuracy; the mixing cylinder 2 provides a sealed reaction space for mixing chemical powders and liquid materials, capable of withstanding internal pressure and vacuum negative pressure during the mixing process, and adaptable to mixing requirements under various working conditions such as normal pressure and vacuum; the moving block 3 is the core load-bearing structure of the entire mixing assembly, capable of reciprocating up and down along the axial direction of the mixing cylinder 2, dividing the internal cavity of the mixing cylinder 2 into two independent mixing chambers, realizing forced reversing flow of the mixed materials; the sealing ring 4 is made of corrosion-resistant and wear-resistant fluororubber material, sleeved on the outside of the moving block 3, forming a tight dynamic seal with the inner wall of the mixing cylinder 2, preventing leakage of the mixed materials from the gap between the upper and lower chambers, while ensuring sealing performance under vacuum conditions and preventing air infiltration; the two scraping mechanisms are symmetrically arranged on the upper and lower sides of the moving block 3, and can move with the moving block 3. The up-and-down movement of the moving block 3 scrapes the entire inner wall of the mixing cylinder 2 throughout its entire stroke, thoroughly removing the powder, agglomerated materials, and scale adhering to the inner wall. Multiple flow valves 5 are electromagnetically controlled on / off valves, installed in corresponding flow channels 6, controlling the opening and closing of the flow channels 6 to achieve directional flow and shut-off of the mixture between the upper and lower chambers. Simultaneously, they can connect the upper and lower chambers during vacuum exhaust, achieving synchronous vacuuming of the entire cylinder. The stirring unit can perform high-speed stirring and mixing of the mixture in the upper and lower chambers, combined with forced reversal of material flow, breaking the circumferential vortex and local dead zones of traditional stirring. Through the synergistic cooperation of the above structures, the mixture can continuously circulate and reversally flow between the upper and lower chambers of the moving block 3 and be synchronously stirred. Simultaneously, the full-stroke wall scraping action thoroughly eliminates powder adhesion and scale adhering to the inner wall of the mixing cylinder 2. The scraped material can immediately re-enter the mixing system to participate in the homogenization process, fundamentally avoiding inaccurate proportions caused by powder sticking to the wall, and significantly improving the mixing uniformity and efficiency of the liquid-solid two-phase mixture.

[0027] Furthermore, the mixing assembly also includes two high-pressure injection mechanisms, which are symmetrically arranged above and below the moving block 3; The high-pressure jetting mechanism includes multiple high-pressure pumps 7, multiple water inlet pipes 8, and multiple high-pressure nozzles 9. The multiple high-pressure pumps 7 are sequentially arranged on one side of the moving block 3. The multiple water inlet pipes 8 are respectively connected to the water inlet end of the corresponding high-pressure pump 7, and the multiple high-pressure nozzles 9 are respectively connected to the water outlet end of the corresponding high-pressure pump 7.

[0028] In this embodiment, the two high-pressure jetting mechanisms are symmetrically arranged on the upper and lower sides of the moving block 3, respectively, and can respectively impact the mixture in the upper and lower chambers with high-pressure jets to further enhance the mixing effect; the high-pressure pump 7 is a high-pressure centrifugal pump, which can provide stable high-pressure water flow power, and the pressure can be flexibly adjusted according to the material characteristics; the water inlet pipe 8 is a high-pressure water flow delivery channel, which can deliver external liquid raw materials or cleaning water to the high-pressure pump 7; the multiple high-pressure nozzles 9 are atomizing jet nozzles, which can convert high-pressure water flow into high-speed atomized jets and spray them into the mixture to break up powder agglomerates that are difficult to wet, promote the full wetting and dispersion of powder and liquid, and at the same time, can perform high-pressure rinsing on the inner wall of the chamber and the surface of the stirring components to remove the attached stubborn clumps, further improving the uniformity of mixing and the cleaning effect.

[0029] Furthermore, the stirring unit includes a lower stirring mechanism and multiple upper stirring mechanisms. The lower stirring mechanism is disposed on one side of the moving block 3, and the multiple upper stirring mechanisms are sequentially disposed on the other side of the moving block 3.

[0030] In this embodiment, the stirring unit adopts a structure design with independent stirring in the upper and lower chambers, which can simultaneously and independently stir the mixture in the upper and lower chambers, ensuring that the materials in each chamber are fully sheared and mixed. The lower stirring mechanism is mainly responsible for stirring and mixing the materials in the lower chamber. After the powder and liquid are fully mixed in the lower chamber, a uniform liquid mixture is formed. Multiple upper stirring mechanisms are evenly arranged in a ring on the other side of the moving block 3, which can form multi-directional stirring disturbances on the liquid mixture in the upper chamber, avoiding local stirring blind spots and improving the overall stirring uniformity. The structure of independent stirring in the upper and lower chambers can adjust the stirring speed and stirring time according to the amount and characteristics of the materials in the upper and lower chambers, adapting to the process requirements of different mixing stages and further improving the mixing efficiency.

[0031] Furthermore, the lower stirring mechanism includes a lower stirring component 10 and a plurality of lower stirring plates 11. The lower stirring component 10 is disposed inside the movable block 3, and the output end of the lower stirring component 10 passes through the movable block 3 and is fixedly connected to the plurality of lower stirring plates 11.

[0032] In this embodiment, the lower stirring component 10 is a waterproof and sealed servo motor, which can operate stably for a long time in a closed and vacuum mixing environment, providing stable driving power for the rotation and stirring of the lower stirring plate 11. The speed can be precisely adjusted to adapt to the stirring needs of materials with different viscosities. Multiple lower stirring plates 11 are radially and evenly arranged at the output end of the lower stirring component 10, and can rotate synchronously and at high speed with the lower stirring component 10. They generate strong shearing and disturbance effects on the powder and liquid materials in the lower chamber, quickly dispersing and dissolving the powder in the liquid to form a uniform liquid mixture, breaking the stratification of materials and ensuring the mixing uniformity of materials in the lower chamber.

[0033] Furthermore, the upper stirring mechanism includes an upper stirring component 12 and a plurality of upper stirring plates 13. The upper stirring component 12 is disposed inside the movable block 3, and the output end of the upper stirring component 12 passes through the movable block 3 and is fixedly connected to the plurality of upper stirring plates 13.

[0034] In this embodiment, the upper stirring component 12 is a waterproof and sealed servo motor that can independently drive the corresponding upper stirring plate 13 to rotate. Multiple upper stirring components 12 can independently control their speed to achieve multi-dimensional stirring disturbance. Multiple upper stirring plates 13 are arranged at an inclined position at the output end of the upper stirring component 12. When rotating, they can generate a composite flow field of axial and radial directions, which drives the liquid mixture in the upper chamber to form an up-and-down rolling flow state, further enhancing the mass transfer and mixing effect of the material and ensuring the uniformity of the mixing of the liquid material in the upper chamber.

[0035] Furthermore, the scraping mechanism includes a scraper 14, a wear-resistant protective layer 15, a pressure sensor 16, and a spare scraper block 17. The scraper 14 is disposed on one side of the moving block 3, the wear-resistant protective layer 15 is disposed on one side of the scraper 14, and the wear-resistant protective layer 15 is located between the scraper 14 and the inner wall of the mixing cylinder 2. The pressure sensor 16 is disposed on the scraper 14, and the spare scraper block 17 is disposed on the outside of the sealing ring 4 and is located between the sealing ring 4 and the mixing cylinder 2.

[0036] In this embodiment, the scraper 14 is made of hard alloy material, which has high strength and rigidity, and can move up and down with the moving block 3 to scrape the inner wall of the mixing cylinder 2; the wear-resistant protective layer 15 is made of highly wear-resistant tungsten carbide coating, covering the side of the scraper 14 that contacts the inner wall of the mixing cylinder 2, which can greatly improve the wear resistance of the scraper 14, extend its service life, and at the same time avoid the scraper 14 from directly rubbing against the cylinder wall to generate metal debris that contaminates the material; the pressure sensor 16 is installed on the scraper 14. At the root, the contact pressure between the scraper 14 and the cylinder wall can be monitored in real time. When the pressure is abnormal, the lifting speed of the moving block 3 can be automatically adjusted to avoid damage to the scraper 14 due to excessive force. At the same time, the degree of scaling on the cylinder wall can be judged according to the pressure change, and the number of scraping times and the force can be adjusted. The spare scraper block 17 is a ring scraping structure and is set on the outside of the sealing ring 4. It can assist in the wall scraping operation after the main scraper 14 is worn. At the same time, it can scrape off the residual material on the outside of the sealing ring 4 to ensure the sealing effect and extend the maintenance cycle of the device.

[0037] Furthermore, the mixing assembly also includes a cover unit, which includes a plurality of cover components 18, a cover plate 19, and an adjustment mechanism. The plurality of cover components 18 are sequentially arranged above the base 1, and the output ends of the plurality of cover components 18 are fixedly connected to the cover plate 19. The cover plate 19 covers the top of the mixing cylinder 2, and the adjustment mechanism is arranged on the cover plate 19.

[0038] In this embodiment, the cover unit can automatically open, close, and seal the mixing cylinder 2, preventing dust from flying during the mixing process and ensuring overall sealing under vacuum conditions. Multiple cover components 18 are self-locking electric cylinders, symmetrically arranged on both sides of the mixing cylinder 2, which can synchronously drive the cover plate 19 to perform vertical lifting and lowering movements, realizing automatic opening and closing of the mixing cylinder 2 without manual operation, thus improving the automation level of the device. The cover plate 19 is a circular sealing cover plate, which, after closing, forms a tight vacuum seal with the upper end of the mixing cylinder 2, preventing material splashing, dust leakage, and air infiltration during the mixing process. The adjusting mechanism is installed on the cover plate 19 and can drive the moving block 3 to perform up-and-down reciprocating movements, while simultaneously pressing the liquid mixture in the upper cavity of the mixing cylinder, accelerating the speed at which the material enters the lower cavity through the flow channel.

[0039] Furthermore, the adjustment mechanism includes an internal lifting component 20, a pressing adjustment component 21, and a pressing plate 22. The pressing adjustment component 21 and the internal lifting component 20 are both disposed above the cover plate 19. The output end of the pressing adjustment component 21 passes through the cover plate 19 and is fixedly connected to the pressing plate 22. The output end of the internal lifting component 20 passes through the cover plate 19 and the pressing plate 22 in sequence and is fixedly connected to the moving block 3.

[0040] In this embodiment, the internal lifting component 20 is a high-precision servo electric cylinder, which can drive the moving block 3 to make precise up-and-down reciprocating movements along the axial direction of the mixing cylinder 2. The lifting stroke and speed can be precisely adjusted to adapt to the mixing needs of materials with different volumes, providing driving power for forced reversal of material flow and wall scraping. The pressing adjustment component 21 is a self-locking electric cylinder, which can drive the pressing plate 22 to make vertical lifting movements. When the liquid mixture is transferred to the upper cavity of the mixing cylinder, the pressing plate 22 can be driven to move downward to uniformly press the liquid mixture in the upper cavity of the mixing cylinder, generating a downward thrust, accelerating the speed at which the liquid mixture enters the lower cavity through the flow channel 6, shortening the material transfer time, and improving the overall mixing efficiency. The pressing plate 22 is a circular plate with an outer diameter that matches the inner diameter of the mixing cylinder 2, which can form a uniform pressing force on the surface of the liquid material, while providing guiding support for the internal lifting component 20 to ensure the coaxiality of the moving block 3 during the lifting process.

[0041] Furthermore, the mixing assembly also includes a feed inlet 23 and a discharge outlet 24, which are sequentially disposed on the mixing cylinder 2.

[0042] In this embodiment, the feed inlet 23 is located on the upper side wall of the mixing cylinder 2 and serves as the feeding port for powder and liquid raw materials. It can be connected to an external metering feeding system to achieve precise quantitative feeding of raw materials and ensure the accuracy of chemical material proportioning. At the same time, the feed inlet 23 has a vacuum extraction interface function and can be sealed to an external vacuum unit. With the on / off control of the flow valve 5, it can achieve vacuum exhaust of the entire cavity inside the mixing cylinder 2, meeting the requirements of mixing easily oxidized and volatile chemical materials that need to be carried out in a vacuum environment. The discharge port 24 is located on the bottom side wall of the mixing cylinder 2 and serves as the discharge port for liquid materials after mixing. It is equipped with an electric vacuum-sealed discharge valve, which can automatically control the start and stop of discharge and the flow rate, realizing automatic discharge of the mixed materials without manual unloading, while ensuring vacuum sealing during the discharge process.

[0043] When using the chemical material production proportioning and mixing device of this embodiment, the operator first activates multiple closing components 18, driving the cover plate 19 upward to open the mixing cylinder 2. According to the proportioning requirements of the chemical materials, a fixed amount of powder and liquid raw materials are sequentially fed into the mixing cylinder 2 through the feed inlet 23. After feeding, the closing components 18 drive the cover plate 19 downward to close and seal the mixing cylinder 2. If the mixing operation needs to be carried out in a vacuum environment, all the flow valves 5 are opened to completely connect the upper and lower chambers of the moving block 3, sealing the feed inlet 23 to the external vacuum unit. The vacuum unit is then started to ventilate the mixing cylinder 2. After all air is extracted and the preset vacuum level is reached, the flow valve 5 is closed and disconnected from the vacuum unit, allowing subsequent stirring and mixing operations to proceed in a vacuum environment. Subsequently, the internal lifting component 20 is activated, driving the moving block 3 downwards to the upper part of the mixing cylinder 2, ensuring all the mixed materials are located in the lower chamber below the moving block 3. The lower stirring component 10 is activated, driving multiple lower stirring plates 11 to rotate at high speed, performing preliminary stirring and mixing of the powder and liquid materials in the lower chamber. Simultaneously, the high-pressure injection mechanism below is activated; the high-pressure pump 7 draws liquid raw materials through the water inlet pipe 8, converting it into a high-speed atomized jet that is injected into the material through the high-pressure nozzle 9. The powder agglomerates are broken up to promote thorough wetting of the powder and liquid, allowing the materials to mix fully in the lower chamber to form a uniform liquid mixture. After the initial stirring reaches the preset time, the internal lifting component 20 drives the moving block 3 to slowly descend. The scraping mechanisms on the upper and lower sides move synchronously with the moving block 3. The scraper 14 drives the wear-resistant protective layer 15 to slide tightly against the inner wall of the mixing cylinder 2, scraping off all the powder and agglomerated materials adhering to the inner wall. The scraped material falls into the liquid mixture below and participates in the mixing again. The pressure sensor 16 monitors the contact pressure of the scraper 14 in real time and automatically adjusts the descending speed of the moving block 3 to ensure the scraping effect. Protect the scraper 14 from damage; when the moving block 3 descends to the bottom of the mixing cylinder 2, and there is no space for the moving block 3 to continue moving down in the bottom area, multiple flow valves 5 open simultaneously, and the liquid mixture in the lower chamber flows through multiple flow channels 6 to the upper chamber above the moving block 3 under the squeezing action of the moving block 3; after all the material has been transferred, the flow valves 5 close simultaneously, and multiple upper stirring components 12 are activated to drive the corresponding upper stirring plates 13 to rotate at high speed, so as to stir and mix the liquid mixture in the upper chamber again, and at the same time, the high-pressure injection mechanism above is activated to further enhance the dispersion and mixing effect of the material;After the upper chamber is stirred for a preset time, the internal lifting component 20 drives the moving block 3 to slowly move upward. The scraping mechanisms on both sides scrape the inner wall of the mixing cylinder 2 again throughout its entire stroke, removing all the agglomerated powder and powder particles that have re-attached to the inner wall during the upward movement. The scraped material falls into the liquid mixture in the upper chamber. When the moving block 3 reaches the top of the mixing cylinder 2, the flow valve 5 is opened again. At the same time, the pressing adjustment component 21 drives the pressing plate 22 downward to uniformly press the liquid mixture in the upper cavity of the mixing cylinder, accelerating the return of the liquid mixture through the flow channel 6 to the lower chamber. After all the material has returned, the flow valve 5 is closed, and the pressing adjustment component 21 drives the pressing plate 22 upward to reset, starting the lower stirring mechanism to stir again. The above up-and-down movement of the moving block 3 is repeated. The cyclical operation of material reversal flow, pressure plate-assisted unloading, wall scraping, and mixing ensures that the liquid mixture continuously circulates and is synchronously stirred between the upper and lower chambers of the moving block 3. Simultaneously, the full-stroke wall scraping and high-pressure jet impact thoroughly eliminate powder adhesion and scaling on the inner wall of the mixing cylinder, breaking the circumferential vortex and local dead zones of traditional mixing, achieving high-precision and high-uniformity mixing of powder and liquid materials. After mixing, the electric vacuum-sealed discharge valve of the discharge port 24 is opened, and the uniformly mixed liquid chemical material is automatically discharged through the discharge port 24 and collected for the next production process. After discharge, cleaning water can be injected into the mixing cylinder through the high-pressure jet mechanism. Combined with the up-and-down movement of the moving block 3 and the scraping operation of the scraping mechanism, the inside of the mixing cylinder is automatically cleaned. After cleaning, the wastewater is discharged, the device is reset, and the next batch of mixing can begin.

[0044] Please see Figure 6 The present invention also provides a method for proportioning and mixing chemical materials for production, comprising the following steps: S1: Powder and liquid raw materials are added into the mixing cylinder 2 according to the chemical material ratio; S2: The movable block 3 is inserted into the mixing cylinder 2, and the mixing cylinder 2 is sealed by the sealing ring 4; if vacuum mixing is required, the flow valve 5 is opened, and the feed port 23 is connected to an external vacuum machine to discharge the air inside the mixing cylinder 2. After the preset vacuum degree is reached, the flow valve 5 is closed. S3: The stirring unit is activated to stir and mix the chemical materials inside the mixing cylinder 2, so that the materials are fully mixed in the lower chamber to form a liquid mixture. S4: After the stirring reaches the preset time, the moving block 3 moves down and the scraping mechanism scrapes off the powder adhering to the inner wall of the mixing cylinder 2. S5: When there is no space for the moving block 3 to move down in the bottom area of ​​the mixing cylinder 2, the flow valve 5 opens, and the liquid mixture flows through the flow channel 6 to the top of the moving block 3; S6: The flow valve 5 is closed, the stirring unit stirs the liquid mixture above the moving block 3 again, and then the moving block 3 moves upward and the scraping mechanism scrapes off the clumps of powder or powder particles attached to the inner wall of the mixing cylinder 2 again. S7: This cycle allows the liquid mixture to flow and mix continuously above and below the moving block 3, while a scraping operation is performed to prevent it from adhering to the inner wall of the mixing cylinder 2, ultimately completing the mixing of powder and liquid.

[0045] In this process, powder and liquid raw materials are added to the mixing cylinder 2 according to the chemical material ratio; the moving block 3 is inserted into the mixing cylinder 2, and the mixing cylinder 2 is sealed by the sealing ring 4; if vacuum mixing is required, the flow valve 5 is opened, and the inlet 23 is connected to an external vacuum machine to expel the air inside the mixing cylinder 2. After reaching the preset vacuum level, the flow valve 5 is closed; the stirring unit is started to stir and mix the chemical materials inside the mixing cylinder 2, so that the materials are fully mixed in the lower chamber to form a liquid mixture; after stirring for a preset time, the moving block 3 moves down, and the scraping mechanism adheres to the inner wall of the mixing cylinder 2. The powder is scraped off; when there is no space for the moving block 3 to move down in the bottom area of ​​the mixing cylinder 2, the flow valve 5 opens, and the liquid mixture flows through the flow channel 6 to the top of the moving block 3; the flow valve 5 closes, the stirring unit stirs the liquid mixture above the moving block 3 again, and then the moving block 3 moves up, and the scraping mechanism scrapes off the clumps of powder or powder particles attached to the inner wall of the mixing cylinder 2 again; this cycle is repeated, so that the liquid mixture flows and mixes continuously above and below the moving block 3, while the scraping operation prevents it from adhering to the inner wall of the mixing cylinder 2, and finally the mixing of powder and liquid is completed.

[0046] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A mixing device for chemical material production, comprising a base and a mixing cylinder, wherein the mixing cylinder is mounted above the base, characterized in that, It also includes hybrid components; The mixing assembly includes a moving block, a sealing ring, two scraping mechanisms, multiple flow valves, and a stirring unit. The moving block has multiple flow grooves and is located inside the mixing cylinder. The sealing ring is sleeved on the outside of the moving block and contacts the inner wall of the mixing cylinder. The two scraping mechanisms are respectively disposed on both sides of the moving block. The multiple flow valves are sequentially disposed on the corresponding flow grooves. The stirring unit is disposed on both sides of the moving block.

2. The proportioning and mixing device for chemical material production as described in claim 1, characterized in that, The mixing component also includes two high-pressure injection mechanisms, which are symmetrically arranged above and below the moving block; The high-pressure jetting mechanism includes multiple high-pressure pumps, multiple water inlet pipes, and multiple high-pressure nozzles. The multiple high-pressure pumps are sequentially arranged on one side of the movable block. The multiple water inlet pipes are respectively connected to the water inlet end of the corresponding high-pressure pump, and the multiple high-pressure nozzles are respectively connected to the water outlet end of the corresponding high-pressure pump.

3. The proportioning and mixing device for chemical material production as described in claim 2, characterized in that, The stirring unit includes a lower stirring mechanism and multiple upper stirring mechanisms. The lower stirring mechanism is disposed on one side of the moving block, and the multiple upper stirring mechanisms are sequentially disposed on the other side of the moving block.

4. The proportioning and mixing device for chemical material production as described in claim 3, characterized in that, The lower stirring mechanism includes a lower stirring component and multiple lower stirring plates. The lower stirring component is disposed inside the moving block, and the output end of the lower stirring component passes through the moving block and is fixedly connected to the multiple lower stirring plates.

5. The proportioning and mixing device for chemical material production as described in claim 4, characterized in that, The upper stirring mechanism includes an upper stirring component and multiple upper stirring plates. The upper stirring component is disposed inside the movable block, and the output end of the upper stirring component passes through the movable block and is fixedly connected to the multiple upper stirring plates.

6. The proportioning and mixing device for chemical material production as described in claim 5, characterized in that, The scraping mechanism includes a scraper, a wear-resistant protective layer, a pressure sensor, and a spare scraper block. The scraper is disposed on one side of the moving block, the wear-resistant protective layer is disposed on one side of the scraper, and the wear-resistant protective layer is located between the scraper and the inner wall of the mixing cylinder. The pressure sensor is disposed on the scraper, and the spare scraper block is disposed on the outside of the sealing ring and located between the sealing ring and the mixing cylinder.

7. The proportioning and mixing device for chemical material production as described in claim 6, characterized in that, The mixing assembly further includes a cover unit, which includes multiple cover components, a cover plate, and an adjustment mechanism. The multiple cover components are sequentially arranged above the base, and the output ends of the multiple cover components are fixedly connected to the cover plate. The cover plate covers the top of the mixing cylinder, and the adjustment mechanism is arranged on the cover plate.

8. The proportioning and mixing device for chemical material production as described in claim 7, characterized in that, The adjustment mechanism includes an internal lifting component, a pressing adjustment component, and a pressing plate. The pressing adjustment component and the internal lifting component are both located above the cover plate. The output end of the pressing adjustment component passes through the cover plate and is fixedly connected to the pressing plate. The output end of the internal lifting component passes through the cover plate and the pressing plate in sequence and is fixedly connected to the moving block.

9. The proportioning and mixing device for chemical material production as described in claim 8, characterized in that, The mixing component further includes a feed inlet and a discharge outlet, which are sequentially disposed on the mixing cylinder.

10. A method for proportioning and mixing in chemical material production, using the proportioning and mixing device for chemical material production according to claim 9, characterized in that, Includes the following steps: Powder and liquid raw materials are added to the mixing cylinder according to the chemical material ratio; The movable block is inserted into the mixing cylinder, and the mixing cylinder is sealed by the sealing ring. The stirring unit is activated to stir and mix the chemical materials inside the mixing cylinder; After the stirring reaches the preset time, the moving block moves down and the scraping mechanism scrapes off the powder adhering to the inner wall of the mixing cylinder. When there is no space for the moving block to move down in the bottom area of ​​the mixing cylinder, the flow valve opens, and the mixture of powder and liquid flows through the flow channel to the top of the moving block; When the flow valve is closed, the stirring unit stirs the mixture above the moving block again, and then the moving block moves upward, and the scraping mechanism scrapes off the clumps of powder or powder particles attached to the inner wall of the mixing cylinder again. This cycle allows the mixture to flow and mix continuously above and below the moving block, while a scraping operation prevents it from adhering to the inner wall of the mixing cylinder, ultimately completing the mixing of powder and liquid.

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