Multi-stage mixing device for water reducing agent

Abstract

The utility model relates to the technical field of water reducing agent production equipment, in particular to a water reducing agent multi-stage mixing device which comprises a first-stage mixing mechanism, a second-stage mixing mechanism, a third-stage mixing mechanism and a communicating piece, a plurality of groups of communicating pieces are arranged and are used for sequentially communicating the first-stage mixing mechanism, the second-stage mixing mechanism and the third-stage mixing mechanism, the first-stage mixing mechanism, the second-stage mixing mechanism and the third-stage mixing mechanism are sequentially communicated, and a liquid outlet is formed in each stage of mixing mechanism and is used for discharging intermediate products; the liquid conveying openings are formed in the first-stage mixing mechanism and the second-stage mixing mechanism and are used for conveying intermediate products for further mixing, so that the production products can be flexibly adjusted, the production flexibility is improved, the proportioning sequence and accuracy are improved, the proportioning difference is reduced, the raw material dissolution and storage orderliness is ensured, the product consistency is improved, and the production efficiency is improved. The quality fluctuation is reduced, and efficient and stable production can be realized.

Description

Technical Field

[0001] This utility model relates to the technical field of water-reducing agent production equipment, and in particular to a multi-stage mixing device for water-reducing agents. Background Technology

[0002] Water-reducing agents are concrete admixtures that can reduce the amount of mixing water while maintaining the slump of concrete. When added to concrete mixtures, they can disperse cement particles, improve workability, reduce unit water consumption, improve the fluidity of concrete mixtures, or reduce unit cement consumption and save cement.

[0003] In the production of water-reducing agents, different mixing processes are carried out according to the type of water-reducing agent and the required product performance. Multi-stage mixing process plays a key role in the production of water-reducing agents, which helps to improve product quality and meet market demand.

[0004] Multi-stage mixing of water-reducing agents can generally be divided into primary mixing, secondary mixing, and tertiary mixing. Primary mixing refers to the initial mixing and dissolution of the main raw materials to ensure that the raw materials are uniformly dissolved into liquid. Secondary mixing is based on primary mixing, adding some additives or modifiers to further improve the mixing uniformity and performance. Tertiary mixing is for products with special requirements, by mixing and blending multiple secondary raw materials to ensure that the stability and performance of the final product meet specific needs.

[0005] Currently, different levels of mixing requirements require different and independent mixing equipment. Due to the sequential relationship between the mixing processes, it is easy to cause chaotic mixing of ingredients. This chaos leads to a significant difference between the actual ratio of the water-reducing agent and the preset ratio, making it difficult for the product quality to achieve the preset effect. In the long run, the instability of product quality will seriously affect the company's reputation in the market, leading to a decline in market share. Secondly, due to the chaotic mixing of ingredients, frequent adjustments and calibrations must be made during the production process. This not only increases the workload of operators and wastes raw materials, but also leads to a longer production cycle and a significant decrease in production efficiency, which is inconsistent with the concept of a continuous flow production process management. Utility Model Content

[0006] To address the problem of inconsistent ingredient mixing for products with varying mixing requirements, this application provides a multi-stage mixing device for water-reducing agents.

[0007] The multi-stage mixing device for water-reducing agents provided by this utility model adopts the following technical solution:

[0008] A multi-stage mixing device for water-reducing agents includes a primary mixing mechanism, a secondary mixing mechanism, a tertiary mixing mechanism, and a connecting component. The connecting component is provided in multiple sets and is used to sequentially connect the primary mixing mechanism, the secondary mixing mechanism, and the tertiary mixing mechanism.

[0009] The primary mixing mechanism includes multiple sets of dissolvers and multiple sets of primary storage tanks. The dissolvers are used to dissolve the raw material powder, and the primary storage tanks are used to store the dissolved liquid. The dissolvers are connected to the primary storage tanks through the connecting parts. The primary storage tanks are provided with a primary drain port for discharging the liquid and a primary delivery port for conveying the liquid.

[0010] The secondary mixing mechanism includes a reaction vessel and a secondary storage tank. The reaction vessel is connected to the primary inlet of the primary storage tank through multiple sets of connecting parts. The secondary storage tank is used to store the mixed liquid. The secondary storage tank is provided with a secondary drain port for discharging the liquid and a secondary inlet port for conveying the liquid. The secondary mixing mechanism is provided in multiple sets.

[0011] The three-stage mixing mechanism includes a mixing tank, which is connected to the secondary inlet of multiple sets of secondary storage tanks via a connecting member. The mixing tank is provided with a tertiary outlet for discharging the liquid.

[0012] Preferably, the connecting member includes a connecting pipe and an end cap. One end of the connecting pipe is provided with an inclined portion, which is gradually inclined from top to bottom. The end cap is rotatably assembled with the top end of the inclined portion and is used to cover the inclined portion.

[0013] Preferably, the top end of the inclined portion is provided with a groove, the inner side wall of the groove is provided with a rotating hole, the end cap is provided with a flange portion adapted to the groove, and the two side walls of the flange portion are respectively connected to a rotating shaft, and the rotating shaft is assembled with the rotating hole.

[0014] Preferably, the connecting member further includes multiple sets of magnetic blocks, one set of the magnetic blocks being embedded in the flange portion, and the end cap having several sets of the magnetic blocks embedded on the opposite side of the flange portion.

[0015] Preferably, the dissolver includes a hopper and a stirring and conveying mechanism. The top wall of the hopper has a feed inlet. The longitudinal section of the hopper is an inverted triangle. The bottom of the hopper has an arc-shaped portion that is tangent to the longitudinal side walls of the hopper. The transverse ends of the arc-shaped portion have a water inlet and a liquid outlet, respectively. The stirring and conveying mechanism is rotatably assembled with the hopper. At least a portion of the stirring and conveying mechanism is located in the arc-shaped portion and is used to convey the material in the hopper from the feed inlet to the liquid outlet.

[0016] Preferably, the inlet is provided with a first valve, the outlet is provided with a second valve, the primary storage tank has a primary inlet, and the second valve is connected to the primary inlet of the primary storage tank by a primary water pump, which is used to pump the solution in the hopper to the storage tank.

[0017] Preferably, the primary storage tank further includes a level tube made of transparent material, the axis of which is parallel to the axis of the primary storage tank and located outside the primary storage tank. The two ends of the level tube are respectively connected to the top and bottom of the primary storage tank, and the outer ring wall of the level tube is provided with scale lines.

[0018] Preferably, the inner bottom wall of the primary storage tank is conical and the primary inlet is provided at the top of the cone. The top wall of the reactor is provided with a filling port for liquid dripping. The filling port is connected to a liquid material dripping mechanism. The primary inlet is located above the filling port, and the primary inlet and the feed pipe of the liquid material dripping mechanism are connected by a connecting member. The connecting member is provided with a pneumatic regulating valve for controlling the flow rate of auxiliary materials in the delivery pipe.

[0019] Preferably, the three-stage mixing mechanism further includes a three-stage water pump, the secondary inlet is located at the bottom of the secondary storage tank, the inlet is located at the top of the mixing tank, and the three-stage water pump is connected between the secondary inlet and the inlet, and is used to pump the liquid in the secondary storage tank to the mixing tank.

[0020] Preferably, the secondary storage tank is equipped with a weighing scale and an inlet control valve. The weighing scale is used to weigh the amount of liquid in the storage tank. The secondary storage tank has an inlet, and the inlet control valve is located at the inlet to control the amount of liquid entering the storage tank according to the weighing scale.

[0021] The beneficial effects of this utility model are as follows:

[0022] The system comprises a series of interconnected primary, secondary, and tertiary mixing mechanisms, each equipped with a drain outlet to remove intermediate products. The primary and secondary mixing mechanisms also have inlet outlets to transport intermediate products for further mixing. This design allows for flexible adjustments to production processes, enhancing production flexibility and resolving the need for separate equipment for different mixing levels. It also improves the sequentiality and accuracy of ingredient mixing, enhances product quality stability, reduces proportioning differences, ensures orderly dissolution and storage of raw materials, improves product consistency, reduces quality fluctuations, and ultimately facilitates efficient and stable production.

[0023] By using the inclined part and end cap structure in the connecting part, the backflow problem that may occur when the liquid is connected to different mixing mechanisms is solved, which improves the stability of multi-stage mixing production, reduces raw material waste, ensures that the liquid flow direction between each mixing mechanism is controllable, facilitates precise control of the production process, improves product quality, reduces defect rate, and helps to adapt to diverse production needs and improve the versatility of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of a multi-stage mixing device in an embodiment of this application;

[0025] Figure 2 This is a perspective view of the primary hybrid mechanism in the embodiments of this application;

[0026] Figure 3 This is a three-dimensional sectional view of the primary hybrid mechanism in the embodiments of this application;

[0027] Figure 4 This is a perspective view of the secondary mixing mechanism in the embodiments of this application;

[0028] Figure 5 This is a front view of the secondary hybrid mechanism in the embodiments of this application;

[0029] Figure 6 This is a perspective view of the secondary liquid storage tank in the embodiments of this application;

[0030] Figure 7 This is a perspective view of the three-stage hybrid mechanism in the embodiments of this application;

[0031] Figure 8 This is a first perspective view of the connecting element in the embodiments of this application;

[0032] Figure 9 This is a second perspective view of the connecting element in the embodiments of this application;

[0033] Figure 10 This is a third perspective view of the connecting element in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 10. Dissolver; 101. Hopper; 1011. Arc-shaped section; 1012. Water inlet; 1013. Liquid outlet; 1014. Guide cylinder; 102. Inclined plate; 103. Screwdriver;

[0036] 11. Primary storage tank; 111. Primary drain port; 112. Primary infusion port; 113. Liquid level pipe;

[0037] 12. Primary water pump;

[0038] 20. Reactor; 201. Filling port;

[0039] 21. Secondary storage tank; 213. Weighing scale; 214. Liquid indicator tube;

[0040] 22. Secondary water pump;

[0041] 30. Batching tank; 301. Three-stage drain outlet; 302. Liquid inlet;

[0042] 31. Three-stage water pump;

[0043] 4. Connecting component; 41. Connecting pipe; 411. Inclined part; 412. Groove; 42. End cap; 421. Flange part; 43. Magnetic block. Detailed Implementation

[0044] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0045] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0046] In the description of this application, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0047] Furthermore, unless otherwise defined, the technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and not for limiting the application. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0048] Example: Figure 1-10 As shown, a multi-stage mixing device for water-reducing agents includes a primary mixing mechanism, a secondary mixing mechanism, a tertiary mixing mechanism, and a connecting member 4. The connecting member 4 is provided in multiple sets and is used to sequentially connect the primary mixing mechanism, the secondary mixing mechanism, and the tertiary mixing mechanism.

[0049] The primary mixing mechanism includes multiple sets of dissolvers 10 and multiple sets of primary storage tanks 11. The dissolvers 10 are used to dissolve the raw material powder, and the primary storage tanks 11 are used to store the dissolved liquid. Each set of dissolvers 10 is connected to a set of primary storage tanks 11 via a connecting member 4. The primary storage tanks 11 are provided with a primary drain port 111 for discharging the liquid and a primary delivery port 112 for conveying the liquid. By setting multiple sets of dissolvers 10 and corresponding storage tanks, it is convenient to dissolve different raw materials and store them separately. The dissolved liquid can be directly discharged through the primary drain port 111 to produce the finished product, or the dissolved liquid can be used as an intermediate product for secondary mixing through the primary delivery port 112. Of course, both the primary drain port 111 and the primary delivery port 112 are connected to solenoid valves to control their opening and closing.

[0050] The secondary mixing mechanism includes a reactor 20 and a secondary storage tank 21. The reactor 20 is connected to the primary inlet 112 of multiple primary storage tanks 11 via multiple sets of connecting parts 4. The secondary storage tank 21 is used to store the mixed liquid. The secondary storage tank 21 is equipped with a secondary drain port for discharging the liquid and a secondary inlet port for conveying the liquid. There are multiple sets of secondary mixing mechanisms. Each set of secondary mixing mechanisms is connected to multiple sets of primary mixing mechanisms to mix different dissolved liquids to form a mixed liquid. Each set of reactors 20 is connected to a secondary storage tank 21, which facilitates the separate storage of different mixed liquids. The mixed solution can be directly discharged through the secondary drain port to produce a finished product, or the mixed liquid can be used as an intermediate product for tertiary mixing through the secondary inlet port. Similarly, both the secondary drain port and the secondary inlet port are connected to solenoid valves to control their opening and closing.

[0051] The three-stage mixing mechanism includes a mixing tank 30, which is connected to the secondary inlets of multiple secondary storage tanks 21 via a connecting member 4. The mixing tank 30 is equipped with a tertiary drain port 301 for discharging the liquid. Since there are multiple sets of the two-stage mixing mechanism, it should be understood that the two-stage mixing mechanism includes multiple sets of reaction vessels 20 and multiple sets of secondary storage tanks 21 corresponding to the reaction vessels 20, so as to further adjust different mixed liquids to meet the performance requirements of different products. The product is discharged through the tertiary drain port 301. Similarly, the tertiary drain port 301 is connected to a solenoid valve to control its opening and closing.

[0052] To prevent backflow of the liquid when the connecting member 4 connects the primary, secondary, and tertiary mixing mechanisms, the connecting member 4 includes a connecting pipe 41 and an end cap 42. One end of the connecting pipe 41 has an inclined portion 411 that gradually slopes downwards. The end cap 42 is rotatably fitted onto the top of the inclined portion 411 and is used to cover it. The shape of the end cap 42 is adapted to the opening shape of the inclined portion 411, allowing the end cap 42 to cover the inclined portion 411. Due to the rotation of the end cap 42... Connected to the top of the inclined section 411, the end cap 42 closes onto the inclined section 411 under its own weight, thereby preventing liquid from flowing into the connecting pipe 41 from one end of the inclined section 411, thus preventing backflow. When the connecting part 4 is installed, the end with the inclined section 411 is close to the feed inlet of the next stage. For example, the end of the connecting pipe 41 away from the inclined section 411 is connected to the first-stage liquid inlet 112 of the first-stage storage tank, and the end of the connecting pipe 41 with the inclined section 411 is connected to the reactor 20, so as to prevent the downward liquid from flowing back into the upper-stage storage tank 11.

[0053] When projecting orthogonally along the radial direction of the connecting pipe 41, the angle between the inclined part 411 and the axis of the connecting pipe 41 is 30°±5°, which improves the stability of the end wall closure.

[0054] Regarding the specific structure of the rotating assembly of the end cap 42 and the connecting pipe, a groove 412 is provided at the top of the inclined part 411, and a rotating hole is provided on the inner side wall of the groove 412. The end cap 42 is provided with a flange 421 that fits the groove 412. A rotating shaft is connected to each of the two side walls of the flange 421. The rotating shaft is assembled with the rotating hole. By matching the flange 421 with the groove 412, the tightness of the end cap 42 when it is closed is improved, thereby achieving the effect of preventing backflow. Of course, an arc part is provided at the end of the flange 421 facing the inner wall of the groove 412. The arc part is coaxial with the rotating shaft to avoid interference between the flange 421 and the inner wall of the groove 412 when the end cap 42 rotates.

[0055] To further improve the tightness of the end cap 42 when it is closed with the connecting pipe, and to achieve the effect of automatic closing of the end cap 42, the connecting member 4 also includes multiple sets of magnetic blocks 43. One set of magnetic blocks 43 is embedded in the flange portion 421. Several sets of magnetic blocks 43 are embedded on the opposite side of the end cap 42 in the radial direction of the flange portion 421. Preferably, three sets are provided. By setting unbalanced magnetic blocks 43 in the end cap 42, the weight of the side of the end cap 42 away from the flange portion 421 is greater than that of the side closer to the flange portion 421. On the inclined portion 411, which is inclined, the end cap 42 closes on the inclined portion 411 under its own weight. When liquid is introduced into the connecting pipe, the flow of liquid... The force applied is sufficient to open the end cap 42, allowing the liquid to flow normally. Of course, those skilled in the art will conduct actual adjustments to this part. By designing the attraction force of the magnetic block 43 to match the water flow, the above effect can be achieved. It is worth noting that since the connecting pipe is usually supported by ferrite-based stainless steel pipe or galvanized steel pipe, it is magnetic and can achieve magnetic attraction of the magnetic block 43. If the connecting pipe is made of plastic, such as PVC pipe or PE pipe, then the inclined part 411 also needs to be embedded with a magnetic block 43 to achieve the effect of magnetic attraction of the end cap 42. Of course, the position of the magnetic block 43 on the inclined part 411 is corresponding to the position of the magnetic block 43 inside the end cap 42.

[0056] Regarding the specific structure of the dissolver 10, the dissolver 10 includes a hopper 101 and a stirring and conveying mechanism. The top wall of the hopper 101 has a feed inlet. The longitudinal section of the hopper 101 is an inverted triangle. The bottom of the hopper 101 has an arc-shaped portion 1011, which is tangent to the longitudinal side walls of the hopper 101. The transverse ends of the arc-shaped portion 1011 have a water inlet 1012 and a liquid outlet 1013, respectively. The stirring and conveying mechanism is rotatably assembled with the hopper 101. At least part of the stirring and conveying mechanism is located in the arc-shaped section 1011 and is used to convey the material in the hopper 101 from the feed inlet to the liquid outlet 1013. During operation, the raw material powder of the water-reducing agent in a preset ratio is poured into the hopper 101 from the feed inlet. The raw material slides down the inner wall of the hopper 101 into the arc-shaped section 1011. The water inlet 1012 is connected to a water pipe for introducing a predetermined amount of liquid water into the hopper 101. The liquid outlet 1013 is connected to the primary liquid inlet of the storage tank for discharging the water into the storage tank. The water-reducing agent solution, after being mixed and dissolved in hopper 101, is passed into a storage tank for storage. The stirring and conveying mechanism stirs the raw materials in hopper 101 before conveying them, improving the uniformity of the raw material powder mixing and dissolution. By setting hopper 101 in an inverted triangular shape, the raw materials in hopper 101 can slide down naturally, reducing blockage and accumulation, which is beneficial to improving the feeding efficiency and the conveying efficiency of the stirring and conveying mechanism. The stirring and conveying mechanism ensures that the raw material powder is evenly dispersed in water. While conveying the raw materials, stirring is carried out to reduce product quality fluctuations caused by uneven dissolution, which is beneficial to the stability of concrete performance. Through this raw material dissolution device, the raw materials and water are pre-mixed and dissolved. Under the flushing of the water flow, the contact rate between water and raw materials is increased, so that the raw materials and water can mix more quickly, improve the dissolution efficiency, and reduce the overall dissolution time. Of course, in order to increase the flushing intensity of the water flow on the raw materials, the liquid water can be pressurized before being introduced from the water inlet 1012.

[0057] Regarding the inclination angle of the hopper 101, the longitudinal section of the hopper 101 is arranged in an inverted isosceles triangle, and the included angle between the two inclined sidewalls of the hopper 101 is 30° to 60°, preferably 50°.

[0058] After the raw materials are added to the hopper 101 according to the preset ratio, the raw material powder will remain on the inner wall of the material. In order to facilitate the rinsing of the raw materials remaining on the inner wall of the hopper 101 and pumping them into the storage tank, in terms of the connection structure between the dissolver 10 and the primary storage tank 11, a first valve is provided at the inlet 1012, a second valve is provided at the outlet 1013, and the primary storage tank 11 has a primary inlet. The second valve and the primary inlet of the primary storage tank 11 are connected to a primary water pump 12. The primary water pump 12 is used to pump the solution in the hopper 101 to the storage tank. After the raw materials are added and the hopper 101 is empty, the solution will be pumped into the storage tank. When there is no raw material accumulation inside, close the second valve, then input liquid water into the hopper 101 from the liquid inlet until the water level is level with the inlet. Next, close the first valve so that liquid water can soak the inner wall of the hopper 101, thereby dissolving the raw material powder remaining on the inner wall of the hopper 101. Then, open the second valve and the first-stage water pump 12 to pump the liquid in the hopper 101 into the storage tank. This can reduce raw material residue and reduce the cleaning work of the hopper 101. At the same time, reducing raw material residue can ensure that the water-reducing agent reaches the preset solute ratio and reduce the quality fluctuation of the water-reducing agent.

[0059] To ensure better delivery of the reducing agent discharged from the outlet 1013 to the storage tank, this embodiment employs a method of reducing the cross-section of the outlet 1013 to achieve a pressurizing effect. The dissolver 10 also includes a liquid guide cylinder with an inner wall shaped like a frustum. The liquid guide cylinder is mounted on the inner wall of the arc-shaped portion 1011, with its lower bottom facing the inlet 1012. The upper bottom of the liquid guide cylinder is connected to the outlet 1013. A stirring and conveying mechanism is located between the inlet 1012 and the lower bottom of the liquid guide cylinder. Notably, the larger bottom surface of the liquid guide cylinder is called... The smaller bottom surface of the liquid guide tube is called the upper bottom. The longitudinal cross-section of the liquid outlet 1013 is smaller than that of the first-stage liquid inlet. By reducing the cross-section of the liquid outlet 1013, the pressure of the liquid when it flows out is increased, which improves the conveying efficiency from the liquid outlet 1013 to the storage tank and shortens the time of the entire production process. This allows the water-reducing agent solution to be conveyed to the storage tank more effectively. The frustum-shaped liquid guide tube guides the flow of the dissolved solution, which helps the liquid flow smoothly, reduces the foaming caused by turbulence, and ensures the stability and quality of the water-reducing agent solution.

[0060] Because a guide cylinder 1014 is provided inside the hopper 101, the lateral length of the stirring and conveying mechanism is shortened. As a result, when the raw material is poured in from the feed port, some material remains on the outer wall of the guide cylinder 1014 and cannot be effectively conveyed by the stirring and conveying mechanism. In order to solve the above technical problem, the dissolver 10 also includes an inclined plate 102. The inclined plate 102 is used to connect the side wall of the first-stage liquid inlet located in the vertical direction of the liquid outlet 1013 with the lower bottom outer wall of the guide cylinder.

[0061] Regarding the specific structure of the mixing and conveying mechanism, it includes an auger 103. The outer diameter of the blades of the auger 103 is adapted to the inner wall of the arc-shaped portion 1011. The axis of rotation of the auger 103, the central axis of the arc-shaped portion 1011, and the axis of the inlet 1012 are collinear. When the mixing and conveying mechanism is running, the blades of the auger 103 rotate efficiently under the drive of the water flow at the inlet 1012, thereby achieving rapid mixing and conveying of raw materials and improving production efficiency. The continuous rotation of the auger 103 ensures that the raw materials and water are fully mixed, ensuring the uniformity of the water-reducing agent solution and improving the quality stability of the product. Furthermore, the rotation of the auger 103 is driven by the water flow at the inlet 1012, reducing dependence on external energy and lowering energy consumption in the production process. By adjusting the flow rate at the inlet 1012, precise control of the mixing and conveying process can be achieved.

[0062] To improve the airtightness of the primary storage tank 11 to the contained liquid, the primary storage tank 11 is made of metal, such as stainless steel. However, due to the absorption, scattering, and transmission of light by stainless steel, it is opaque in the visible light range, making it impossible to visually determine the liquid level inside the primary storage tank 11. This hinders effective control of the auxiliary materials inside the primary storage tank 11. To address this technical problem, the primary storage tank 11 also includes a level tube 113 made of a transparent material, such as glass or acrylic. The axis of the level tube 113 is parallel to the axis of the primary storage tank 11, and the level tube 113 is located at the... On the outside, the two ends of the liquid level pipe 113 are connected to the top and bottom of the primary storage tank 11, respectively. The outer ring wall of the liquid level pipe 113 is provided with scale lines. Through the liquid level pipe 113 connecting the top and bottom of the primary storage tank 11, the liquid level in the liquid level pipe 113 is always at the same level as the liquid level in the primary storage tank 11 under the action of atmospheric pressure. That is, the hydraulic pipe can be used to indicate the liquid level in the primary storage tank 11. In this way, workers can intuitively know the liquid level in the primary storage tank 11 through the transparent liquid level pipe 113. Combined with the reading of the scale lines, the liquid in the primary storage tank 11 can be quantitatively managed, which is beneficial for mass production.

[0063] Regarding the specific structure of the secondary mixing mechanism, the inner bottom wall of the primary storage tank 11 is conical, and a primary inlet 112 is provided at the apex of the cone. The top wall of the reactor 20 has a filling port 201 for liquid dripping, which is connected to a liquid material dripping mechanism. The primary inlet 112 is located above the filling port 201, and the primary inlet 112 is connected to the feed pipe of the liquid material dripping mechanism via a connecting member 4. The connecting member 4 is equipped with a pneumatic regulating valve for controlling the flow rate of auxiliary materials in the conveying pipe. By placing the primary storage tank 11 directly above or diagonally above the reaction, the auxiliary materials in the primary storage tank 11 are transported to the liquid material dripping mechanism through the conveying pipe under gravity, and then pneumatically... The regulating valve controls the flow rate of the auxiliary material in the delivery pipe, and works in conjunction with the liquid material dripping mechanism to control the dripping of the auxiliary material. This ensures that the liquid material is neither insufficiently dripped nor excessively dripped, thus ensuring good reaction of the material in the reactor 20 and improving processing quality. Secondly, the method of storing the auxiliary material and raw material in the primary storage tank 11 and the reactor 20 respectively is conducive to large-scale production. This gravity dripping device is suitable for the processing and production of water-reducing agents. Furthermore, the conical primary storage tank 11 facilitates the flow of the auxiliary material in the tank to the delivery pipe, reducing the amount of auxiliary material remaining on the inner wall of the primary storage tank 11. The dripping is performed using gravity, and the flow rate is adjusted only by a pneumatic regulating valve, making the dripping more stable, reliable, and precise.

[0064] The liquid material dripping mechanism includes an inlet pipe, a valve, a sight glass, and an outlet pipe. A guide pipe is added between the valve and the sight glass. The upper end of the guide pipe is connected to the valve, and the lower end of the guide pipe extends into the sight glass at the center of the top. The lower end of the outlet pipe is connected to the filling port 201 of the reactor 20. When liquid additives are to be dripped into the reactor 20, the valve is opened, and the liquid material is introduced into the valve through the inlet pipe, then into the sight glass through the guide pipe, and finally into the reactor 20 through the outlet pipe. Because the guide pipe is located in the center of the top cover of the sight glass and extends into the cavity of the sight glass, the dripping condition of the guide pipe can be clearly observed by the operator, even in cases of very small dripping amounts. It is worth mentioning that this liquid material dripping mechanism adopts the existing mechanism of Chinese Utility Model Patent No. CN201324626Y.

[0065] Both the primary storage tank 11 and the reaction vessel 20 are equipped with supports to support the material tank and the reaction vessel 20.

[0066] It is worth mentioning that since a set of reactors 20 is connected to multiple sets of primary mixing mechanisms, the reactors 20 are correspondingly provided with multiple sets of filling ports 201. In order to improve the conveying efficiency of the liquid, the secondary mixing mechanism also includes a secondary water pump 22. The secondary water pump 22 is connected between the primary liquid inlet 112 of a storage tank and the filling port 201 of the reactor 20. Of course, only the secondary water pump 22 or only the liquid material dripping mechanism is connected to the same set of connecting parts 4. The liquid material dripping mechanism is to make the liquid drip slowly, which is suitable for a small amount of liquid that needs to be added slowly, thereby controlling the reaction rate of the liquid in the reactor 20. The secondary water pump 22 is to inject the liquid quickly into the reactor 20, which is suitable for a large amount of liquid.

[0067] Regarding the specific structure of the three-stage mixing mechanism, it is used to prepare building material admixtures such as water-reducing agents. Specifically, building material admixtures such as water-reducing agents usually require the mixing of multiple liquids in different proportions. Therefore, different liquids need to be prepared and stored in a secondary storage tank 21, and then drawn from the secondary storage tank 21 into the mixing tank 30 for preparation. Therefore, the three-stage mixing mechanism in this embodiment is used to realize the extraction and mixing of different liquids. The mixing device specifically includes a mixing tank 30. The secondary inlet of the secondary storage tank 21 is connected to the inlet 302 of the mixing tank 30 through a liquid delivery device, and the liquid is quantitatively output to the mixing tank 30 through the liquid delivery device.

[0068] More specifically, the liquid storage device is configured in multiple groups according to the type of liquid being stored. Each group of the liquid storage device is equipped with a number of secondary liquid storage tanks 21 corresponding to the weight of the corresponding liquid. That is, according to the usage requirements of each type of liquid, a different number of secondary liquid storage tanks 21 are provided for each type of liquid, so that the consumption rate of the liquid in the secondary liquid storage tanks 21 is synchronized, ultimately achieving synchronous feeding and reducing the number of times workers need to feed the liquid. For example, if the ratio of liquid A, liquid B, and liquid C is 3:2:1, then liquid A can be configured with 3 secondary liquid storage tanks 21, liquid B with 2 secondary liquid storage tanks 21, and liquid C with 1 secondary liquid storage tank 21. When feeding, the liquid in each secondary liquid storage tank 21 can be added to the saturation state simultaneously. During the mixing and storage process, the consumption rate of the liquid in each secondary liquid storage tank 21 is synchronized, ultimately achieving the effect of synchronous feeding, which can effectively reduce the number of times workers need to feed the liquid. In addition, workers can determine whether the liquid delivery rate of the liquid delivery device is normal based on the height of each secondary liquid storage tank 21. For example, if the height of the secondary liquid storage tanks 21 in different groups differs too much, the corresponding tertiary water pump 31 may have a problem with its delivery rate, which facilitates fault visualization and timely repair.

[0069] To reduce the difficulty of monitoring the liquid level, preferably, the mixing and batching device in this embodiment also includes a liquid level indicator tube 214. This indicator tube 214 is closely attached to the outer side of the side wall of the secondary storage tank 21 and is vertically arranged along the side wall of the secondary storage tank 21. Both ends of the indicator tube 214 connect to the bottom and top of the secondary storage tank 21. Also preferably, the portion of the liquid level indicator tube 214 on the side wall of the secondary storage tank 21 is made of a transparent material. In use, the liquid level indicator tube 214 can physically indicate the liquid level in the tank. The principle is that both ends of the indicator tube 214 are connected to the top and bottom of the secondary storage tank 21, respectively. The liquid level in the indicator tube 214 and the liquid level in the tank are always level under the influence of air pressure. Therefore, workers can intuitively know the liquid level in the secondary storage tank 21 through the transparent indicator tube 214.

[0070] On the other hand, the liquid delivery device is mainly used to extract and transport the liquid in the secondary storage tank 21 to the mixing tank 30. Specifically, the liquid delivery device includes a connecting member 4 and a tertiary water pump 31, which connects the connecting member 4 to the inlet 302 of the mixing tank 30. The secondary delivery ports of the secondary storage tanks 21 in the same group are each connected to the same connecting member 4 and connected to the inlet 302 of the mixing tank 30 via the water pump. During extraction and mixing, different output power settings can be used to control the weight of different liquids, allowing them to enter the mixing tank 30 according to a predetermined ratio for mixing and batching, achieving refined batching and improving the product quality of building material admixtures such as water-reducing agents.

[0071] Regarding the liquid delivery device, in this embodiment, the three-stage water pump 31 is a unidirectional water pump with a single inlet and a single outlet. Compared to multi-port split-type solenoid valve water pumps, the unidirectional water pump can be dedicated to a specific pipe, simplifying pipeline installation, reducing the likelihood of malfunctions during use, and ensuring high reliability. It is well-suited for this liquid mixing and batching device, reducing maintenance costs. More optimally, the delivery rate of the three-stage water pump 31 is proportional to the weight of the corresponding liquid. This setting ensures a stable and reasonable liquid-to-material ratio during the batching process in the mixing tank 30, allowing for dynamic maintenance of the mixed materials in the mixing tank 30 without the need for batch-wise centralized extraction and mixing. For example, when the material in the mixing tank 30 drops to a preset low level, multiple three-stage water pumps 31 are simultaneously activated and maintained for a preset time, causing the material in the mixing tank 30 to reach a preset high level. Since the delivery rate of different three-stage water pumps 31 is proportional to the weight of the corresponding liquid, it ensures that each liquid input in the mixing tank 30 always maintains the correct weight ratio.

[0072] On the other hand, preferably, the inlet end of the water guiding channel is provided with multiple inlets, and each inlet is connected to a corresponding storage tank of the storage device. Also preferably, the outlet section of the water guiding channel is connected to the inlet 302 of the mixing tank 30 via a corresponding three-stage water pump 31. This design allows multiple secondary storage tanks 21 in the same group, i.e., multiple secondary storage tanks 21 containing the same liquid, to share a single water guiding channel, saving on liquid transportation costs and keeping the water levels of the multiple secondary storage tanks 21 in the same group at the same level, facilitating worker monitoring.

[0073] Preferably, the secondary storage tank 21 is equipped with a weighing scale 213 and an inlet control valve. The weighing scale 213 is located at the bottom of the secondary storage tank 21, with the secondary storage tank 21 positioned above it, to weigh the secondary storage tank 21 and thus determine the amount of liquid in it. The inlet control valve is located at the inlet 302 of the secondary storage tank 21 and is used to control the amount of liquid entering the secondary storage tank 21 according to the weighing scale 213. Furthermore, the inlets 302 of the multiple secondary storage tanks 21 in the storage device are interconnected and connected to the inlet control valve, enabling synchronous feeding through a single inlet control valve. Of course, to improve the smoothness of the liquid transport from the reactor 20 to the secondary storage tank 21, a liquid transfer pump is connected between the reactor 20 and the secondary storage tank 21.

[0074] Regarding the mixing tank 30, in this embodiment, the mixing tank 30 is provided with a barrel body, the barrel body is provided with a liquid inlet 302 and a three-stage liquid outlet 301, the liquid inlet 302 is connected to the output port of each liquid storage device, and a stirrer is provided inside the barrel body. After each liquid enters the mixing tank 30, it is stirred and mixed by the stirrer, and finally discharged and loaded onto a vehicle or into a can through the conduit provided in the three-stage liquid outlet 301.

[0075] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the scope of the technology disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application.

[0076] Therefore, the scope of protection of this application shall be determined by the scope of the claims.

Claims

1. A multi-stage mixing device for water-reducing agents, characterized in that: It includes a primary mixing mechanism, a secondary mixing mechanism, a tertiary mixing mechanism, and a connecting component. The connecting component is provided in multiple sets and is used to sequentially connect the primary mixing mechanism, the secondary mixing mechanism, and the tertiary mixing mechanism. The primary mixing mechanism includes multiple sets of dissolvers and multiple sets of primary storage tanks. The dissolvers are used to dissolve the raw material powder, and the primary storage tanks are used to store the dissolved liquid. The dissolvers are connected to the primary storage tanks through the connecting parts. The primary storage tanks are provided with a primary drain port for discharging the liquid and a primary delivery port for conveying the liquid. The secondary mixing mechanism includes a reaction vessel and a secondary storage tank. The reaction vessel is connected to the primary inlet of the primary storage tank through multiple sets of connecting parts. The secondary storage tank is used to store the mixed liquid. The secondary storage tank is provided with a secondary drain port for discharging the liquid and a secondary inlet port for conveying the liquid. The secondary mixing mechanism is provided in multiple sets. The three-stage mixing mechanism includes a mixing tank, which is connected to the secondary inlet of multiple sets of secondary storage tanks via a connecting member. The mixing tank is provided with a tertiary outlet for discharging the liquid.

2. The multi-stage mixing device for water-reducing agents according to claim 1, characterized in that: The connecting component includes a connecting pipe and an end cap. One end of the connecting pipe is provided with an inclined portion, which is gradually inclined from top to bottom. The end cap is rotatably assembled with the top end of the inclined portion and is used to cover the inclined portion.

3. The multi-stage mixing device for water-reducing agents according to claim 2, characterized in that: The top of the inclined portion is provided with a groove, and the inner sidewall of the groove is provided with a rotating hole. The end cap is provided with a flange portion that fits the groove. The two sidewalls of the flange portion are respectively connected to a rotating shaft, and the rotating shaft is assembled with the rotating hole.

4. The multi-stage mixing device for water-reducing agents according to claim 3, characterized in that: The connecting member also includes multiple sets of magnetic blocks, one set of which is embedded in the flange portion, and the end cap has several sets of magnetic blocks embedded on the opposite side of the flange portion.

5. The multi-stage mixing device for water-reducing agents according to claim 1, characterized in that: The dissolver includes a hopper and a stirring and conveying mechanism. The top wall of the hopper has a feed inlet. The longitudinal section of the hopper is an inverted triangle. The bottom of the hopper has an arc-shaped part that is tangent to the longitudinal side walls of the hopper. The transverse ends of the arc-shaped part have a water inlet and a liquid outlet, respectively. The stirring and conveying mechanism is rotatably assembled with the hopper. At least part of the stirring and conveying mechanism is located in the arc-shaped part and is used to convey the material in the hopper from the feed inlet to the liquid outlet.

6. The multi-stage mixing device for water-reducing agents according to claim 5, characterized in that: The inlet is equipped with a first valve, the outlet is equipped with a second valve, the primary storage tank has a primary inlet, and the second valve is connected to the primary inlet of the primary storage tank to a primary water pump. The primary water pump is used to pump the solution in the hopper to the storage tank.

7. A multi-stage mixing device for water-reducing agents according to claim 6, characterized in that: The primary storage tank also includes a level tube made of transparent material. The axis of the level tube is parallel to the axis of the primary storage tank and is located outside the primary storage tank. The two ends of the level tube are respectively connected to the top and bottom of the primary storage tank, and the outer ring wall of the level tube is provided with scale lines.

8. The multi-stage mixing device for water-reducing agents according to claim 1, characterized in that: The inner bottom wall of the primary storage tank is conical, and the primary inlet is provided at the top of the cone. The top wall of the reactor is provided with a filling port for liquid dripping. The filling port is connected to a liquid material dripping mechanism. The primary inlet is located above the filling port, and the primary inlet and the feed pipe of the liquid material dripping mechanism are connected by a connecting member. The connecting member is provided with a pneumatic regulating valve for controlling the flow rate of auxiliary materials in the delivery pipe.

9. A multi-stage mixing device for water-reducing agents according to claim 1, characterized in that: The three-stage mixing mechanism also includes a three-stage water pump. The two-stage mixing mechanism includes a two-stage storage tank. The two-stage inlet is located at the bottom of the two-stage storage tank. The top of the mixing tank has an inlet. The three-stage water pump is connected between the two-stage inlet and the inlet and is used to pump the liquid in the two-stage storage tank to the mixing tank.

10. A multi-stage mixing device for water-reducing agents according to claim 9, characterized in that: The secondary storage tank is equipped with a weighing scale and an inlet control valve. The weighing scale is used to weigh the amount of liquid in the storage tank. The secondary storage tank has an inlet, and the inlet control valve is located at the inlet to control the amount of liquid entering the storage tank according to the weighing scale.

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