Water reducing agent preparation device and use method thereof

Abstract

The invention relates to the technical field of concrete admixture preparation, in particular to a water reducer preparation device and a using method thereof, and the water reducer preparation device comprises a fixed shell, a crushing mechanism, a grinding mechanism and a screening mechanism. A feeding port is formed in the top end of the fixed shell, a first cavity and a second cavity which are not communicated with each other are formed in the fixed shell, and the feeding port is communicated with the first cavity. And the crushing mechanism is arranged in the first cavity, is close to the feeding hole and is used for crushing the water reducing agent entering the first cavity. The grinding mechanism comprises a first grinding assembly and a second grinding assembly, the first grinding assembly is arranged in the first cavity and located below the crushing mechanism, the second grinding assembly is arranged in the second cavity, and the first grinding assembly and the second grinding assembly can rotate. The screening mechanism is arranged on the fixed shell, communicates with the first cavity and the second cavity and is used for screening the water reducing agents and conveying the water reducing agents with different granularities into the first cavity and the second cavity correspondingly. The water reducer has the effect of reducing the possibility that the use effect of the water reducer is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of concrete admixture preparation, and in particular to a water reducing agent preparation device and a method for using the same. Background Art

[0002] At present, water reducers are a type of concrete admixture that can significantly reduce the amount of mixing water while maintaining the slump of concrete basically unchanged. In modern construction projects, water reducers are widely used because they can improve the workability and strength of concrete. During the preparation process of solid water reducers, they are easy to agglomerate and form lumps after drying. For example, solid polycarboxylic acid high-efficiency water reducers need to be ground into powder after production for subsequent use. In the related art, grinding balls are usually used to grind water reducers, but since the water reducer itself has the problem of uneven particle size before grinding, it is difficult to quickly refine large particles during the grinding process, and small particles are easily over-ground, resulting in uneven particle size of the ground powder, which ultimately reduces the use effect of the water reducer.

[0003] Therefore, there is an urgent need for a water reducing agent preparation device and a method for using the same. Summary of the invention

[0004] In order to reduce the possibility of reduced use effect of a water reducer, the present application provides a water reducer preparation device and a method for using the same.

[0005] First aspect: The present application provides a water reducing agent preparation device, which adopts the following technical solution: A water reducing agent preparation device, comprising: A fixed shell, wherein a feed port is disposed at the top of the fixed shell, a first chamber and a second chamber which are not connected to each other are disposed in the fixed shell, and the feed port is connected to the first chamber; A crushing mechanism, disposed in the first chamber and close to the feed port, the crushing mechanism being used to rotate in the first chamber and crush the water reducing agent; The grinding mechanism comprises a first grinding assembly and a second grinding assembly, wherein the first grinding assembly is arranged in the first chamber and below the crushing mechanism, and the second grinding assembly is arranged in the second chamber, and the first grinding assembly and the second grinding assembly can rotate respectively; A screening mechanism is arranged on the fixed shell, the screening mechanism is communicated with the first chamber and the second chamber respectively, and the screening mechanism is used to screen the water reducing agent and transport the water reducing agent of different particle sizes to the first chamber and the second chamber respectively.

[0006] By adopting the above technical solution, firstly, the design of the fixed shell ensures a closed environment during the preparation of the water reducer, avoids the entry of external impurities, and improves the purity of the product. Secondly, the design of the connection between the feed port and the first chamber allows the water reducer to directly enter the first chamber for processing, simplifying the process flow. The setting of the crushing mechanism can crush the water reducer immediately after it enters the first chamber, effectively solving the problem of water reducer agglomeration and improving the efficiency of subsequent grinding. And when the water reducer passes through the breaking mechanism, the screening mechanism can screen the water reducer to transport water reducers of different particle sizes to the first chamber and the second chamber respectively, so as to facilitate the first grinding component and the second grinding component to grade and grind water reducers of different particle sizes respectively, to a certain extent avoiding the problem that large-particle water reducers are difficult to be quickly refined and small-particle water reducers are easy to be over-grinded, thereby ensuring that the particle size of the water reducer after grinding is more uniform, reducing the possibility of reduced use effect of the water reducer, and further improving the quality stability of the product.

[0007] Optionally, the screening mechanism includes an air supply component and a conveying component, the air supply component is arranged on the fixed shell and connected between the first chamber and the first grinding component, one end of the conveying component is connected to the first chamber and is arranged corresponding to the air supply component, and the other end of the conveying component is connected to the second chamber, and the air supply component is used to supply air to the conveying component.

[0008] By adopting the above technical scheme, the air supply component can supply air to the inside of the conveying component, so that when the water reducer is broken by the crushing mechanism and separated from the breaking mechanism, the small-particle water reducer will be brought into the conveying component by the airflow and enter the second chamber through the conveying component, while the large-particle water reducer is not easily carried away by the airflow due to its large mass and continues to remain in the first chamber, thereby achieving the classification of the water reducer, so that the first grinding component and the second grinding component can respectively grade and grind the water reducers of different particle sizes, thereby ensuring the uniform particle size of the final product to a certain extent and improving the use effect of the water reducer.

[0009] Optionally, the conveying component includes a conveying pipe and a filter plate, one end of the conveying pipe is connected to the first chamber and is arranged corresponding to the air supply component, the other end of the conveying pipe is connected to the second chamber, and the filter plate is arranged at one end of the conveying pipe close to the first chamber.

[0010] By adopting the above technical solution, one end of the delivery pipe is connected to the first chamber and is arranged corresponding to the air supply component, and the other end is connected to the second chamber, ensuring that the water reducer can be smoothly transported from the first chamber to the second chamber under the action of the airflow. At the same time, the filter plate is arranged at one end of the delivery pipe close to the first chamber, which can perform preliminary filtering on the water reducer when it enters the delivery pipe, remove larger particles, and prevent the delivery pipe from being blocked, thereby ensuring the stable operation and efficient work of the entire system.

[0011] Optionally, a first rotating assembly and a second rotating assembly are respectively disposed in the fixed shell, the first rotating assembly is disposed in the first chamber and is respectively connected to the crushing mechanism and the first grinding assembly, and the second rotating assembly is disposed in the second chamber and is connected to the second grinding assembly.

[0012] By adopting the above technical solution, the first rotating assembly and the second rotating assembly respectively drive the crushing mechanism, the first grinding assembly and the second grinding assembly to rotate, thereby realizing continuous processing of the water reducing agent in different chambers.

[0013] Optionally, the first grinding assembly has the same structure as the second grinding assembly, the first chamber and the second chamber are respectively provided with discharge ports at their bottoms, the first grinding assembly comprises a grinding cylinder and a grinding block, the grinding cylinder is rotatably connected in the first chamber and connected to the first rotating assembly, the grinding cylinder is communicated with the discharge port, and a plurality of through holes are provided on the grinding cylinder; There are multiple grinding blocks, which are divided into two groups. One group of grinding blocks is arranged on the circumferential outer wall of the grinding cylinder and is offset from the through holes, and the other group of grinding blocks is arranged on the inner wall of the first chamber and close to the grinding cylinder.

[0014] By adopting the above technical solution, the structures of the first grinding assembly and the second grinding assembly are the same, ensuring that the grinding processes in the two chambers have the same process conditions and improving the consistency of the grinding effect. When the water reducer falls between the grinding cylinder and the inner wall of the first chamber, the first rotating assembly drives the grinding cylinder to rotate, so that the grinding cylinder drives the grinding block to rotate, so that the water reducer can be subjected to multi-directional shear force and friction during the grinding process, further refining the water reducer particles, reducing the presence of coarse particles, and improving the uniformity of the powder particle size after grinding. In this process, after the particle size reaches the specified size, the water reducer particles can enter the grinding cylinder through the through hole and be discharged from the discharge port, thereby ensuring that the water reducer after grinding can be discharged smoothly, avoiding blockage, and improving the operating stability and production efficiency of the entire device.

[0015] Optionally, a stirring sleeve is provided on the circumferential outer wall of the grinding cylinder, the stirring sleeve is connected to the grinding cylinder, the stirring sleeve is inclined toward the direction close to the feed inlet, and a filter hole is opened on the stirring sleeve.

[0016] By adopting the above technical solution, the grinding drum can drive the stirring sleeve to rotate, which can effectively improve the fluidity of the water reducer during the grinding process, further promote the uniform distribution of the water reducer particles, avoid local accumulation, and ensure a more uniform grinding effect; on the other hand, the water reducer particles reaching the specified size can pass through the filter holes into the stirring sleeve, and then pass through the stirring sleeve into the grinding drum, thereby further ensuring that the ground water reducer can be discharged smoothly.

[0017] Optionally, the crushing mechanism includes a material receiving platform, a crushing knife group and a driving assembly, the material receiving platform and the driving assembly are respectively arranged on the first rotating assembly, the material receiving platform is arranged close to the feed port, the crushing knife group is arranged between the material receiving platform and the inner wall of the first chamber, the driving assembly is connected to the crushing knife group, and the driving assembly is used to drive the crushing knife group to crush the water reducer.

[0018] By adopting the above technical solution, the receiving platform is arranged close to the feed port, which can ensure that the water reducer entering the first chamber is quickly received by the receiving platform. The crushing knife group is arranged between the receiving platform and the inner wall of the first chamber. Driven by the driving component, the crushing knife group can efficiently cut and crush the water reducer. This design not only prevents large particles of water reducer from directly entering the subsequent process, but also reduces the excessive grinding of small particles, thereby ensuring that the particle size of the water reducer after grinding is more uniform. In addition, the use of the first rotating component makes the entire crushing process more stable and continuous, further improving the preparation quality and efficiency of the water reducer.

[0019] Optionally, a receiving slot is provided in the material receiving platform, a crushing slot is provided on the material receiving platform, a baffle is detachably connected to the inner wall of the crushing slot, a clearance slot is provided on the baffle, and the clearance slot, the crushing slot and the receiving slot are connected in sequence; The crushing knife group includes a pressing knife, a crushing knife and a support plate. There are multiple pressing knives, and the multiple pressing knives are evenly arranged on the inner wall of the first chamber around the material receiving platform. The support plate is rotatably connected to the inner wall of the crushing groove. The crushing knife is arranged on the support plate, and one end of the crushing knife extends out of the give way groove. The driving component passes through the accommodating groove and is connected to the support plate. The driving component can drive the crushing knife to approach or move away from the pressing knife through the support plate.

[0020] By adopting the above technical solution, the baffle is set, so that the water reducer is not easy to enter the crushing tank, and the driving component can drive the crushing knife to approach or move away from the pressing knife through the support plate, so that the crushing knife and the pressing knife cooperate with each other to achieve efficient crushing of materials of different sizes. This design not only improves the crushing efficiency, but also ensures that the particle size of the water reducer after crushing is more uniform, reduces the phenomenon of over-crushing and under-crushing, and improves the quality and use effect of the water reducer.

[0021] Optionally, the first rotating assembly includes a rotating rod, the rotating rod is arranged in the first chamber and is rotatably connected to the fixed housing, a sliding groove is provided on the rotating rod, one end of the material receiving platform is slidably inserted in the sliding groove, and a through groove is provided on the material receiving platform, and the through groove is respectively connected to the sliding groove and the containing groove; The driving assembly includes a driving member, a connecting block, a connecting rod and an elastic member. The driving member is arranged in the slide groove, one end of the driving member passes through the through groove and extends into the accommodating groove, the connecting block is arranged in the accommodating groove and connected to the driving member, the connecting rod is hinged to the connecting block and the supporting plate respectively, the driving member is used to drive the connecting block to approach or move away from the slide groove, the elastic member is arranged between the material receiving platform and the inner wall of the slide groove, and the elastic member is used to push the material receiving platform to move outside the slide groove.

[0022] By adopting the above technical solution, the driving member can drive the connection block to approach or move away from the slide slot, so that the connection block drives the support plate to rotate through the connecting rod, so that the support plate drives the crushing knife to reciprocate, thereby facilitating the use of the crushing knife to crush the water reducer. And when the driving member drives the connection block to move a certain distance in the direction close to the slide slot, the connection block can contact the inner wall of the receiving slot to apply pressure to the material receiving platform, so that the material receiving platform moves into the slide slot. At this time, the material receiving platform drives the support plate and the crushing knife to move, and when the driving member drives the connection block to move in the direction away from the slide slot, the connection block no longer applies force to the material receiving platform, so that the elastic member can push the material receiving platform to move out of the slide slot. In this process, the material receiving platform can drive the support plate and the crushing knife to move, which is conducive to improving the crushing efficiency.

[0023] Second aspect: The present application provides a method for using a water reducing agent preparation device, including any of the water reducing agent preparation devices described above, and comprising the following steps: The agglomerated water reducer is conveyed from the feed port into the first chamber, and the water reducer is crushed by the crushing mechanism, and the crushed water reducer is separated from the crushing mechanism and falls downward; The screening mechanism screens the fallen water reducing agent so that water reducing agents of different particle sizes fall into the first chamber and the second chamber respectively; The first grinding assembly rotates in the first chamber, and the second grinding assembly rotates in the second chamber to grind the water reducing agent.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the cooperation of the fixed shell, the crushing mechanism, the first grinding assembly, the second grinding assembly and the screening mechanism, the agglomerated water reducer can be crushed by the crushing mechanism and then transported to the first chamber and the second chamber respectively under the action of the screening mechanism, so that the first grinding assembly and the second grinding assembly can grind the water reducers of different particle sizes respectively, which to a certain extent avoids the problem that large-particle water reducer is difficult to be quickly refined and small-particle water reducer is easy to be over-grinded, thereby ensuring that the particle size of the water reducer after grinding is more uniform, and reducing the possibility of reduced use effect of the water reducer; 2. Through the cooperation of the grinding cylinder, the grinding block, the stirring sleeve and the first rotating assembly, when the grinding block grinds the water reducer, the water reducer particles with a specified size can enter the grinding cylinder and be discharged from the discharge port, thereby ensuring that the ground water reducer can be discharged smoothly and avoiding blockage; 3. Through the cooperation of the receiving table, the crushing knife group and the driving component, the driving component can drive the crushing knife group to efficiently cut and crush the water reducer, and reduce the excessive grinding of small particles of water reducer, thereby ensuring that the particle size of the water reducer after grinding is more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of a water reducing agent preparation device in this application.

[0026] Figure 2 It is a side view of a water reducing agent preparation device in the present application.

[0027] Figure 3 is along Figure 2 Section view along line AA.

[0028] Figure 4 yes Figure 3 A partial enlarged view of point B in the middle.

[0029] Figure 5 It is a schematic structural diagram of the first grinding assembly in this application.

[0030] Description of reference numerals: 1. Fixed housing; 11. Feeding port; 12. First chamber; 13. Second chamber; 14. First rotating assembly; 141. Rotating rod; 1411. Slide; 15. Second rotating assembly; 16. Discharging port; 2. Crushing mechanism; 21. Receiving platform; 211. Protrusion; 212. Accommodating slot; 213. Through slot; 214. Crushing slot; 215. Baffle; 2151. Dispensing slot; 22. Crushing knife group; 221. Pressing knife; 222. Crushing knife; 223. Support Plate; 23, driving assembly; 231, driving member; 232, connecting block; 233, connecting rod; 234, elastic member; 3, grinding mechanism; 31, first grinding assembly; 311, grinding cylinder; 3111, through hole; 312, grinding block; 313, stirring sleeve; 3131, filter hole; 32, second grinding assembly; 4, screening mechanism; 41, air supply assembly; 411, fan; 412, filter screen; 42, conveying assembly; 421, conveying pipeline; 422, filter plate. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a water reducing agent preparation device.

[0033] It should be noted that, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] Reference Figure 1-3A water reducing agent preparation device includes a fixed shell 1, a crushing mechanism 2, a grinding mechanism 3 and a screening mechanism 4. A feed port 11 is provided at the top of the fixed shell 1, and a first chamber 12 and a second chamber 13 which are not connected to each other are provided inside, and the feed port 11 is connected to the first chamber 12. The crushing mechanism 2 is arranged in the first chamber 12 and close to the feed port 11, and is used to crush the water reducing agent entering the first chamber 12. The grinding mechanism 3 includes a first grinding assembly 31 and a second grinding assembly 32, the first grinding assembly 31 is arranged in the first chamber 12 and located below the crushing mechanism 2, and the second grinding assembly 32 is arranged in the second chamber 13, and both can rotate. The screening mechanism 4 is arranged on the fixed shell 1 and is connected to the first chamber 12 and the second chamber 13 respectively, and is used to screen the water reducing agent and transport the water reducing agent of different particle sizes to the first chamber 12 and the second chamber 13 respectively. Through the above configuration, this embodiment can effectively ensure that the particle size of the water reducing agent after grinding is more uniform, and improve the use effect of the water reducing agent.

[0035] Reference Figure 3 , a first rotating assembly 14 and a second rotating assembly 15 are respectively arranged in the fixed housing 1, the first rotating assembly 14 is arranged in the first chamber 12, and the second rotating assembly 15 is arranged in the second chamber 13. The first rotating assembly 14 includes a rotating rod 141 and a driving motor (not shown in the figure), the driving motor is installed on the fixed housing 1, the rotating rod 141 is arranged in the first chamber 12 and is rotatably connected to the fixed housing 1, and one end of the rotating rod 141 is fixedly connected to the output end of the driving motor, so that the rotating rod 141 is driven to rotate by the driving motor. In this embodiment, the second rotating assembly 15 also includes a rotating rod 141 and a driving motor, and the rotating rod 141 and the driving motor in the second rotating assembly 15 are arranged in the second chamber 13.

[0036] The crushing mechanism 2 includes a receiving platform 21, a crushing blade group 22 and a driving assembly 23. The receiving platform 21 and the driving assembly 23 are respectively arranged on the rotating rod 141, and the receiving platform 21 is arranged close to the feed port 11, so that the rotating rod 141 can drive the receiving platform 21 and the driving assembly 23 to rotate synchronously. In this embodiment, the receiving platform 21 is designed in a truncated cone shape, and the material of the receiving platform 21 can be selected from stainless steel or cast iron to enhance its wear resistance and corrosion resistance.

[0037] Reference Figure 3 and Figure 4, a slide groove 1411 is provided at one end of the rotating rod 141 close to the feed port 11 along its own axial direction. A protrusion 211 is integrally formed at the bottom of the receiving platform 21, and the protrusion 211 is slidably inserted in the slide groove 1411, and a receiving groove 212 is provided in the receiving platform 21. A through groove 213 is provided at one end of the receiving platform 21 close to the protrusion 211, one end of the through groove 213 is connected to the receiving groove 212, and the other end of the through groove 213 passes through the protrusion 211 and is connected to the slide groove 1411, so that the receiving platform 21 can slide relative to the rotating rod 141. In this embodiment, the protrusion 211 is non-circular, and specifically the protrusion 211 is rectangular.

[0038] A plurality of crushing grooves 214 are provided on the circumferential surface of the material receiving platform 21. In this embodiment, four crushing grooves 214 are provided, and the four crushing grooves 214 are respectively connected to the containing groove 212, and a baffle 215 is detachably connected to the inner wall of each crushing groove 214, and the baffle 215 is used to block the crushing groove 214 to prevent the water reducing agent from entering the crushing groove 214. A clearance groove 2151 is provided on the baffle 215, and the clearance groove 2151 is connected to the crushing groove 214.

[0039] Reference Figure 3 The crushing knife group 22 includes a pressing knife 221, a crushing knife 222 and a support plate 223. Among them, a plurality of pressing knives 221 are provided, and the plurality of pressing knives 221 surround the receiving platform 21 and are evenly installed on the inner wall of the first chamber 12.

[0040] The number of support plates 223 is equal to the number of crushing slots 214, and one support plate 223 is hinged on the inner wall of one crushing slot 214 and is located on the side of the baffle 215 close to the receiving slot 212. The crushing knife 222 is installed on the support plate 223, and one end of the crushing knife 222 extends out of the clearance slot 2151 and is corresponding to the pressing knife 221.

[0041] Reference Figure 3 and Figure 4 The driving assembly 23 includes a driving member 231, a connecting block 232, a connecting rod 233 and an elastic member 234. The driving member 231 is installed in the slide slot 1411, and one end of the driving member 231 passes through the through slot 213 and extends into the receiving slot 212. The connecting block 232 is disposed in the receiving slot 212 and is fixedly connected to the driving member 231. In this embodiment, the driving member 231 is a cylinder, so that the driving member 231 is used to drive the connecting block 232 to approach or move away from the slide slot 1411.

[0042] The number of connecting rods 233 is equal to the number of support plates 223, and multiple connecting rods 233 are respectively hinged to the connecting blocks 232, and one end of the connecting rod 233 away from the connecting block 232 is hinged to the support plate 223, so that the connecting block 232 can drive the support plate 223 to rotate through the connecting rod 233, so that the support plate 223 drives the crushing knife 222 to move.

[0043] The elastic member 234 is disposed between the protrusion 211 and the inner wall of the chute 1411. In this embodiment, the elastic member 234 is a spring, so that the elastic member 234 can be used to push the receiving platform 21 to move out of the chute 1411 and to buffer the receiving platform 21 to reduce wear of the receiving platform 21.

[0044] Reference Figure 3 and Figure 4 When the agglomerated water reducer needs to be crushed, the water reducer is first transported to the first chamber 12 through the feed port 11, so that the water reducer falls onto the receiving platform 21 and is sandwiched between the pressing knife 221 and the crushing knife 222. Then, the driving motor is used to drive the rotating rod 141 to rotate, and the rotating rod 141 drives the receiving platform 21 and the crushing knife 222 to rotate. At the same time, the driving member 231 drives the connecting block 232 to reciprocate, so that the connecting block 232 drives the crushing knife 222 to move through the connecting rod 233 and the support plate 223, so that the crushing knife 222 impacts the agglomerated water reducer, thereby achieving the crushing of the water reducer.

[0045] During the process of the crushing knife 222 crushing the water reducer, after the connecting block 232 moves a certain distance in the direction close to the slide groove 1411, the connecting block 232 can contact the inner wall of the accommodating groove 212 to apply pressure to the receiving platform 21, so that the receiving platform 21 moves downward and the elastic member 234 is compressed. When the connecting block 232 moves in the direction away from the slide groove 1411, the receiving platform 21 moves upward under the action of the elastic member 234, so that on the one hand, the receiving platform 21 can squeeze the water reducer to further improve the crushing efficiency, and on the other hand, the crushed water reducer can fall better.

[0046] Reference Figure 1 and Figure 3 The screening mechanism 4 includes an air supply component 41 and a conveying component 42. The air supply component 41 is arranged on the fixed housing 1 and communicates between the first chamber 12 and the first grinding component 31. In this embodiment, the air supply component 41 includes a fan 411 and a filter 412, and the fan 411 is installed on the fixed housing 1 and is used to supply air into the first chamber 12, and the filter 412 is installed on the side of the fan 411 close to the fixed housing 1 to reduce the possibility of the water reducing agent entering the fan 411 and causing damage to the fan 411.

[0047] The conveying assembly 42 includes a conveying pipe 421 and a filter plate 422. One end of the conveying pipe 421 is connected to the first chamber 12 and is arranged corresponding to the fan 411, and the other end of the conveying pipe 421 is connected to the second chamber 13. The filter plate 422 is installed at one end of the conveying pipe 421 close to the first chamber 12, and the filter plate 422 is used to prevent large-particle water-reducing agent from entering the conveying pipe 421.

[0048] Reference Figure 3 When the water reducer passes through the receiving platform 21 and falls to the bottom of the first chamber 12, the fan 411 works to supply air to the conveying pipe 421. At this time, the small-particle water reducer will be brought into the conveying pipe 421 by the airflow and enter the second chamber 13 through the conveying pipe 421. The large-particle water reducer is not easily carried away by the airflow due to its large mass and continues to fall to the bottom of the first chamber 12, thereby achieving the screening of the water reducer.

[0049] Reference Figure 3 The first chamber 12 and the second chamber 13 are provided with discharge ports 16 at their bottoms, respectively. The first grinding assembly 31 and the second grinding assembly 32 have the same structure. The first grinding assembly 31 includes a grinding cylinder 311 and a grinding block 312. The grinding cylinder 311 is rotatably connected in the first chamber 12 and fixedly connected to the rotating rod 141, so that the rotating rod 141 can drive the grinding cylinder 311 to rotate.

[0050] The grinding cylinder 311 is connected to the discharge port 16 , and a plurality of through holes 3111 are formed on the grinding cylinder 311 . The plurality of through holes 3111 are evenly distributed on the grinding cylinder 311 , and the diameters of the through holes 3111 can be adjusted according to actual needs to accommodate water reducers of different particle sizes.

[0051] There are multiple grinding blocks 312, which are divided into two groups. One group of grinding blocks 312 is installed on the circumferential outer wall of the grinding cylinder 311 and is offset from the through hole 3111, and the other group of grinding blocks 312 is installed on the inner wall of the first chamber 12 and is arranged close to the grinding cylinder 311.

[0052] When the water reducer falls between the grinding cylinder 311 and the inner wall of the first chamber 12, the rotating rod 141 drives the grinding cylinder 311 to rotate, so that the grinding cylinder 311 drives the grinding block 312 to rotate, so that the water reducer can be subjected to the shear force and friction force applied by the grinding block 312 in multiple directions, thereby facilitating the grinding of the water reducer. In addition, during the grinding process, when the particle size of the water reducer reaches a specified size, the water reducer particles can enter the grinding cylinder 311 through the through hole 3111 and be discharged from the discharge port 16, thereby ensuring that the ground water reducer can be discharged smoothly, avoiding blockage, and improving the operating stability and production efficiency of the entire device.

[0053] Reference Figure 5A stirring sleeve 313 is fixedly connected to the circumferential outer wall of the grinding cylinder 311 , and a plurality of stirring sleeves 313 are provided. The plurality of stirring sleeves 313 are evenly distributed on the grinding cylinder 311 , and each stirring sleeve 313 is connected to the grinding cylinder 311 .

[0054] Reference Figure 3 and Figure 5 The stirring sleeve 313 is inclined toward the direction close to the feed port 11, and a filter hole 3131 is provided on the stirring sleeve 313, so that on the one hand, the grinding cylinder 311 can drive the stirring sleeve 313 to rotate when rotating, so as to stir the water reducer, avoid local accumulation, and improve the grinding effect; on the other hand, the water reducer particles reaching a specified size can enter the stirring sleeve 313 through the filter hole 3131, and enter the grinding cylinder 311 through the stirring sleeve 313, thereby further ensuring that the ground water reducer can be discharged smoothly.

[0055] The implementation principle of a water reducer preparation device according to an embodiment of the present application is as follows: when it is necessary to grind the agglomerated water reducer, the agglomerated water reducer is first transported to the first chamber 12 through the feed port 11, so that the water reducer falls onto the receiving platform 21 and is clamped between the pressing knife 221 and the crushing knife 222. Then, the driving motor is used to drive the rotating rod 141 to rotate, and the rotating rod 141 drives the receiving platform 21 and the crushing knife 222 to rotate. At the same time, the driving member 231 drives the connecting block 232 to reciprocate, so that the connecting block 232 drives the crushing knife 222 to move through the connecting rod 233 and the support plate 223, so that the crushing knife 222 impacts the agglomerated water reducer to crush the water reducer.

[0056] The crushed water reducer can fall down through the gap between the receiving platform 21 and the inner wall of the first chamber 12. At this time, the fan 411 works to blow the small-particle water reducer that falls into the conveying pipe 421 and convey it to the second chamber 13 through the conveying pipe 421, while the large-particle water reducer continues to fall, so that the water reducer falls to the grinding cylinder 311. At the same time, the grinding cylinder 311 drives the grinding block 312 to rotate to grind the water reducer.

[0057] The water reducing agent after grinding can enter the grinding cylinder 311 through the through hole 3111, and enter the stirring sleeve 313 through the filter hole 3131, and then enter the grinding cylinder 311 through the stirring sleeve 313. Finally, it is discharged from the discharge port 16 to complete the grinding of the water reducing agent.

[0058] The present application also discloses a method for using a water reducing agent preparation device, comprising the following steps: The agglomerated water reducer is transported from the feed port 11 to the first chamber 12, and the driving motor drives the receiving platform 21 to rotate through the rotating rod 141. At the same time, the driving member 231 drives the crushing knife 222 to reciprocate through the connecting block 232, the connecting rod 233 and the supporting plate 223, so as to crush the agglomerated water reducer by the crushing knife 222. The crushed water reducer falls downward through the gap between the receiving platform 21 and the inner wall of the first chamber 12; The fan 411 works to blow the small-particle water reducing agent into the delivery pipe 421. The small-particle water reducing agent will enter the second chamber 13 through the delivery pipe 421, while the large-particle water reducing agent will continue to fall, so that the water reducing agent falls to the grinding cylinder 311; The rotating rod 141 drives the grinding block 312 to rotate through the grinding cylinder 311 to grind the water reducing agent. After the grinding, the water reducing agent enters the grinding cylinder 311 and is discharged from the discharge port 16 .

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water reducing agent preparation device, characterized in that: include: A fixed shell (1), wherein a feed port (11) is provided at the top end of the fixed shell (1), a first chamber (12) and a second chamber (13) which are not connected to each other are provided inside the fixed shell (1), and the feed port (11) is connected to the first chamber (12); a crushing mechanism (2), arranged in the first chamber (12) and close to the feed port (11), the crushing mechanism (2) being used to rotate in the first chamber (12) and crush the water reducing agent; The grinding mechanism (3) comprises a first grinding assembly (31) and a second grinding assembly (32), wherein the first grinding assembly (31) is arranged in the first chamber (12) and is located below the crushing mechanism (2), and the second grinding assembly (32) is arranged in the second chamber (13), and the first grinding assembly (31) and the second grinding assembly (32) are capable of rotating respectively; A screening mechanism (4) is arranged on the fixed housing (1), the screening mechanism (4) being connected to the first chamber (12) and the second chamber (13) respectively, and the screening mechanism (4) is used to screen the water reducing agent and transport the water reducing agent of different particle sizes to the first chamber (12) and the second chamber (13) respectively.

2. The water reducing agent preparation device according to claim 1, characterized in that: The screening mechanism (4) comprises an air supply component (41) and a conveying component (42); the air supply component (41) is arranged on the fixed shell (1) and is connected between the first chamber (12) and the first grinding component (31); one end of the conveying component (42) is connected to the first chamber (12) and is arranged corresponding to the air supply component (41); the other end of the conveying component (42) is connected to the second chamber (13); and the air supply component (41) is used to supply air to the conveying component (42).

3. The water reducing agent preparation device according to claim 2, characterized in that: The conveying component (42) comprises a conveying pipe (421) and a filter plate (422); one end of the conveying pipe (421) is in communication with the first chamber (12) and is arranged corresponding to the air supply component (41); the other end of the conveying pipe (421) is in communication with the second chamber (13); and the filter plate (422) is arranged at one end of the conveying pipe (421) close to the first chamber (12).

4. The water reducing agent preparation device according to claim 1, characterized in that: A first rotating assembly (14) and a second rotating assembly (15) are respectively arranged in the fixed shell (1); the first rotating assembly (14) is arranged in the first chamber (12) and is respectively connected to the crushing mechanism (2) and the first grinding assembly (31); and the second rotating assembly (15) is arranged in the second chamber (13) and is connected to the second grinding assembly (32).

5. The water reducing agent preparation device according to claim 4, characterized in that: The first grinding assembly (31) and the second grinding assembly (32) have the same structure. The bottoms of the first chamber (12) and the second chamber (13) are respectively provided with discharge ports (16). The first grinding assembly (31) comprises a grinding cylinder (311) and a grinding block (312). The grinding cylinder (311) is rotatably connected in the first chamber (12) and is connected to the first rotating assembly (14). The grinding cylinder (311) is in communication with the discharge port (16). A plurality of through holes (3111) are provided on the grinding cylinder (311); A plurality of the grinding blocks (312) are provided, and the plurality of the grinding blocks (312) are divided into two groups, one group of the grinding blocks (312) being arranged on the circumferential outer wall of the grinding cylinder (311) and being offset from the through hole (3111), and the other group of the grinding blocks (312) being arranged on the inner wall of the first chamber (12) and being arranged close to the grinding cylinder (311).

6. The water reducing agent preparation device according to claim 5, characterized in that: A stirring sleeve (313) is provided on the circumferential outer wall of the grinding cylinder (311); the stirring sleeve (313) is in communication with the grinding cylinder (311); the stirring sleeve (313) is inclined in a direction close to the feed port (11); and a filter hole (3131) is provided on the stirring sleeve (313).

7. The water reducing agent preparation device according to claim 4, characterized in that: The crushing mechanism (2) comprises a material receiving platform (21), a crushing knife group (22) and a driving component (23); the material receiving platform (21) and the driving component (23) are respectively arranged on the first rotating component (14); the material receiving platform (21) is arranged close to the feed port (11); the crushing knife group (22) is arranged between the material receiving platform (21) and the inner wall of the first chamber (12); the driving component (23) is connected to the crushing knife group (22); and the driving component (23) is used to drive the crushing knife group (22) to crush the water reducing agent.

8. The water reducing agent preparation device according to claim 7, characterized in that: A receiving groove (212) is provided in the receiving platform (21), a crushing groove (214) is provided on the receiving platform (21), a baffle (215) is detachably connected to the inner wall of the crushing groove (214), a clearance groove (2151) is provided on the baffle (215), and the clearance groove (2151), the crushing groove (214) and the receiving groove (212) are sequentially connected; The crushing knife group (22) comprises a pressing knife (221), a crushing knife (222) and a support plate (223). There are a plurality of pressing knives (221), and the plurality of pressing knives (221) are evenly arranged on the inner wall of the first chamber (12) around the material receiving platform (21). The support plate (223) is rotatably connected to the inner wall of the crushing groove (214). The crushing knife (222) is arranged on the support plate (223), and one end of the crushing knife (222) extends out of the clearance groove (2151). The driving component (23) passes through the accommodating groove (212) and is connected to the support plate (223). The driving component (23) can drive the crushing knife (222) to approach or move away from the pressing knife (221) through the support plate (223).

9. The water reducing agent preparation device according to claim 8, characterized in that: The first rotating assembly (14) comprises a rotating rod (141), the rotating rod (141) is arranged in the first chamber (12) and is rotatably connected to the fixed shell (1), a sliding groove (1411) is provided on the rotating rod (141), one end of the material receiving platform (21) is slidably inserted in the sliding groove (1411), and a through groove (213) is provided on the material receiving platform (21), and the through groove (213) is respectively connected to the sliding groove (1411) and the containing groove (212); The driving assembly (23) comprises a driving member (231), a connecting block (232), a connecting rod (233) and an elastic member (234); the driving member (231) is arranged in the slide groove (1411); one end of the driving member (231) passes through the through groove (213) and extends into the accommodating groove (212); the connecting block (232) is arranged in the accommodating groove (212) and connected to the driving member (231); the connecting rod (233) is hinged to the connecting block (232) and the supporting plate (223) respectively; the driving member (231) is used to drive the connecting block (232) to approach or move away from the slide groove (1411); the elastic member (234) is arranged between the material receiving platform (21) and the inner wall of the slide groove (1411); the elastic member (234) is used to push the material receiving platform (21) to move out of the slide groove (1411).

10. A method for using a water reducing agent preparation device, comprising the water reducing agent preparation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The agglomerated water reducer is conveyed from the feed port (11) into the first chamber (12) so as to be crushed by the crushing mechanism (2), and the crushed water reducer is separated from the crushing mechanism (2) and falls downwards; The screening mechanism (4) screens the fallen water reducing agent so that water reducing agents of different particle sizes fall into the first chamber (12) and the second chamber (13) respectively; The first grinding assembly (31) rotates in the first chamber (12), and the second grinding assembly (32) rotates in the second chamber (13) to grind the water reducing agent.

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