Raw material crusher for producing water reducing agent

Abstract

The utility model discloses a raw material crusher for producing a water reducing agent, which comprises a crushing bin fixed on a rack, a pair of crushing rollers capable of relatively rotating are arranged in the crushing bin, a pair of baffles capable of relatively moving are arranged at an opening at the bottom of the crushing bin, a trapezoidal screen positioned below the baffles is further arranged on the rack, and the trapezoidal screen is arranged on the rack. A conveying bin is further fixed to the machine frame, an opening in the top of the conveying bin is located below the trapezoidal screen, a rotatable conveying rod is arranged in the conveying bin, and spiral blades for conveying materials are fixed to the outer side of the conveying rod. The bottom opening of the crushing bin is in a closed state through the attachment of the two baffles, so that materials can be continuously crushed in the crushing bin, the possibility that the materials are directly discharged from the bottom opening before being completely crushed is reduced, after the materials are crushed for a certain time, the two baffles move back to back, the materials can be guided into the trapezoidal screen through the discharging channel, and the crushing efficiency is improved. And the trapezoidal screen which vibrates up and down is used for screening the materials.

Description

Technical Field

[0001] This utility model relates to the field of pulverizers, and more particularly to the field of pulverizing raw materials for water-reducing agents, specifically a raw material pulverizer for the production of water-reducing agents. Background Technology

[0002] Water-reducing agents are concrete admixtures that reduce the amount of water used in mixing while maintaining a relatively constant slump. Most are anionic surfactants, including lignin sulfonates, naphthalene sulfonates, and formaldehyde polymers. When added to concrete mixes, they disperse cement particles, improve workability, reduce water usage per unit area, and enhance the fluidity of the concrete mix; or they reduce cement usage per unit area, thus saving cement.

[0003] In the preparation process of water-reducing agents, the raw materials need to be crushed into powder by a pulverizer. However, when the existing pulverizer is working, the material is first put into the working chamber through the feed port. After the two sets of roller teeth rotate and mesh with each other to crush the material, it is directly discharged from the discharge port. This method of crushing and discharging at the same time results in some materials not being crushed completely, which reduces the quality of the product. At the same time, the powder needs to be transferred to a screening machine for screening. After screening, the powder that does not meet the requirements is sent back to the pulverizer for crushing. The intermediate transfer process takes a long time, which affects the production efficiency of water-reducing agents. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a raw material crusher for water-reducing agent production. The crusher uses relatively rotating and interlocking crushing rollers to crush the material. During the crushing process, two baffles are in contact to keep the bottom opening of the crushing chamber closed, which allows the material to be continuously crushed in the crushing chamber and reduces the possibility that the material will be discharged directly from the bottom opening without being completely crushed.

[0005] This utility model provides a raw material crusher for water-reducing agent production, including a crushing chamber fixed on a frame. The crushing chamber is equipped with a pair of crushing rollers that can rotate relative to each other. A pair of baffles that can move relative to each other are provided at the bottom opening of the crushing chamber. The frame is also equipped with a trapezoidal screen located below the baffles and that can move up and down. A conveying chamber is also fixed on the frame. The top opening of the conveying chamber is located below the trapezoidal screen. The conveying chamber is equipped with a rotatable conveying rod. Spiral blades for conveying materials are fixed on the outside of the conveying rod. Raw materials are fed into the crushing chamber through the top opening. Two crushing rollers rotate in opposite directions to crush the raw materials. During the crushing process, two baffles keep the bottom opening of the crushing chamber closed, allowing the raw materials to remain in the crushing chamber for continuous crushing until they are completely crushed. After crushing, the two baffles move in opposite directions, and the powder falls onto a trapezoidal screen. The screen is vibrated and screened, and the powder that meets the requirements falls into the conveying chamber through the top opening. The conveying rod drives the spiral blades to rotate and transport the powder. The material frame is placed manually below the bottom opening on the right side of the conveying chamber, and the powder will automatically fall into the material frame for collection. The entire workflow is highly automated, resulting in higher processing efficiency.

[0006] As a further technical solution, a drive motor is fixed on the frame. The left end of the conveying rod extends to the left side of the conveying chamber, and the left end of the crushing roller extends to the left side of the crushing chamber. Pulleys are fixed to the output end of the drive motor, the conveying rod, and the crushing roller. The pulleys on the conveying rod and the output end of the drive motor are connected by a transmission belt. The pulley at the end of the conveying rod is connected to the pulley on the crushing roller by a transmission belt. Meshing gears are fixed to both crushing rollers. The conveying rod and the crushing roller share a common drive source and operate in conjunction, effectively saving costs.

[0007] As a further technical solution, the bottom of the crushing chamber is connected to a discharge channel, the inner wall of which is fixed with a trapezoidal groove, and the bottom of the trapezoidal groove is provided with a discharge hole. A pair of adjusting cylinders are fixed on the frame, and the output ends of the two adjusting cylinders are respectively fixed to the opposite sides of two baffles. The opening and closing of the bottom opening of the crushing chamber can be realized by the two baffles, achieving automatic feeding and flexible adjustment of the crushing time.

[0008] As a further technical solution, a pair of T-shaped seats are fixed on the frame. Multiple guide columns are slidably arranged within the T-shaped seats. A mounting base is fixed above the guide columns, and a vibration motor is fixed to the top surface of the mounting base. A mounting plate is fixed within the pair of mounting bases, and the trapezoidal screen is detachably mounted on the mounting plate. The vibration motor causes the trapezoidal screen to vibrate up and down to screen the powder, which helps improve screening efficiency. The mounting base and guide columns ensure greater stability of the trapezoidal screen during movement.

[0009] As a further technical solution, springs are fitted around the outer sides of the multiple guide columns. The top surface of the spring is fixed to the bottom surface of the mounting base, and the bottom surface of the spring is fixed to the top surface of the T-shaped base. The spring force allows the trapezoidal screen to move more widely, resulting in higher screening efficiency for the crushed material.

[0010] As a further technical solution, the front end of the mounting plate is provided with a mounting groove for mounting a trapezoidal screen. The mounting plate is fastened to the mounting plate with bolts. The trapezoidal screen is placed in the mounting groove and abuts against its inner back wall, and then fixed to the mounting plate 22 with bolts. The T-shaped seat is provided with a guide hole for the guide column to move up and down. Under the guidance of the guide hole, the guide column 18 can move up and down within the T-shaped seat 17.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention involves feeding material into the crushing chamber through the top opening, where it is crushed by opposing rotating and interlocking crushing rollers. During the crushing process, two baffles are in contact, keeping the bottom opening of the crushing chamber closed. This allows the material to be continuously crushed within the chamber, reducing the possibility of incompletely crushed material being discharged directly from the bottom opening. After a certain crushing time, the two baffles move in opposite directions, allowing the material to be guided through the discharge channel into a trapezoidal screen. The vibrating trapezoidal screen then sieves the material, and the crushed material that meets the requirements passes through the trapezoidal screen into the conveying chamber, where it is collected by spiral blades. After multiple sieving processes, when the amount of powder in the trapezoidal screen reaches a certain level, the trapezoidal screen can be removed, and the unsuitable powder can be poured back into the crushing chamber for further crushing.

[0013] Two adjusting cylinders extend, causing two baffles to move relative to each other, thus blocking the discharge hole at the bottom of the trapezoidal trough and closing the bottom opening of the crushing chamber. When the two adjusting cylinders retract, the two baffles move in opposite directions, and the baffles can no longer block the discharge hole at the bottom of the trapezoidal trough, thus opening the bottom opening of the crushing chamber. The opening and closing of the bottom opening of the crushing chamber can be achieved by the two baffles, realizing automatic feeding and allowing flexible adjustment of the crushing time.

[0014] After the powder falls into the trapezoidal screen, the vibrating motor and spring work together to make the trapezoidal screen vibrate up and down to screen the powder, which helps to improve the screening effect.

[0015] The powder falling into the conveying bin can be driven by the conveying rod to rotate the spiral blades, which will automatically send the powder out from the bottom opening and collect it by the material frame placed at the bottom of the opening, thus realizing automated material collection. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a raw material crusher for the production of water-reducing agents, provided as an embodiment of the present invention.

[0018] Figure 2 This is a top view of a pair of crushing rollers of a raw material crusher for producing water-reducing agents, provided as an embodiment of the present invention.

[0019] Figure 3 This utility model provides a raw material crusher for water-reducing agent production. Figure 1 Enlarged structural diagram of section A in the middle.

[0020] In the diagram: 1. Frame; 2. Crushing chamber; 3. Crushing roller; 4. Baffle; 5. Trapezoidal screen; 6. Conveying chamber; 7. Conveying rod; 8. Spiral blade; 9. Drive motor; 10. Pulley; 111. Transmission belt one; 112. Transmission belt two; 12. Transmission gear; 13. Discharge channel; 14. Trapezoidal groove; 15. Discharge hole; 16. Adjusting cylinder; 17. T-shaped seat; 18. Guide column; 19. Mounting base; 20. Spring; 21. Vibration motor; 22. Mounting plate. Detailed Implementation

[0021] The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover a non-exclusive inclusion, such as a process, method, system, product, or device that includes a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices.

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. In addition, the technical features of the various embodiments or individual embodiments provided by this utility model can be arbitrarily combined to form new technical solutions. Such combinations are not bound by the order of steps and / or structural composition patterns, but must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0023] Please see Figure 1-3 This utility model provides a raw material crusher for water-reducing agent production, including a crushing chamber 2 fixed on a frame 1. The crushing chamber 2 is provided with a pair of crushing rollers 3 that can rotate relative to each other. A pair of baffles 4 that can move relative to each other are provided at the bottom opening of the crushing chamber 2 to realize the opening and closing of the bottom opening of the crushing chamber 2. The frame 1 is also provided with a trapezoidal screen 5 located below the baffles 4 and movable up and down. The frame 1 is also fixed with a conveying chamber 6. The top opening of the conveying chamber 6 is located below the trapezoidal screen 5. The conveying chamber 6 is provided with a rotatable conveying rod 7. Spiral blades 8 for conveying materials are fixed on the outside of the conveying rod 7.

[0024] Raw materials are fed into the crushing chamber 2 through the top opening. The two crushing rollers 3 rotate relative to each other to crush the raw materials. During the crushing process, the two baffles 4 keep the bottom opening of the crushing chamber 2 closed, allowing the raw materials to remain in the crushing chamber 2 for continuous crushing until they are completely crushed. After crushing, the two baffles 4 move in opposite directions, and the powder falls onto the trapezoidal screen 5. The trapezoidal screen 5 vibrates up and down to screen the powder. The powder that meets the requirements falls into the conveying chamber 6 through the top opening and is conveyed by the conveying rod 7 driving the spiral blades 8 to rotate. The material is then manually placed below the bottom opening on the right side of the conveying chamber 6, and the powder will automatically fall into the material box to complete the collection.

[0025] The conveyor rod 7 and the crushing roller 3 share a common drive source, which can effectively save costs, such as... Figure 1As shown, a drive motor 9 is fixed on the frame 1. The left end of the conveying rod 7 extends to the left side of the conveying chamber 6, and the left end of the crushing roller 3 extends to the left side of the crushing chamber 2. Pulleys 10 are fixed on the output end of the drive motor 9, the conveying rod 7, and the crushing roller 3. The pulleys 10 on the conveying rod 7 and the pulleys 10 on the output end of the drive motor 9 are connected by a first transmission belt 111. The pulleys 10 at the end of the conveying rod 7 and the pulleys 10 on the crushing roller 3 are connected by a second transmission belt 112. Each of the multiple pulleys 10 has two parallel belt grooves. The first transmission belt 111 is fitted into the belt grooves corresponding to the pulleys 10 on the conveying rod 7 and the pulleys 10 on the output end of the drive motor 9. The second transmission belt 112 is fitted into the belt grooves corresponding to the pulleys 10 at the end of the conveying rod 7 and the pulleys 10 on the crushing roller 3.

[0026] When the drive motor 9 starts, under the transmission action of the first transmission belt 111, the output shaft of the drive motor 9 can drive the conveyor rod 7 to rotate together. When the conveyor rod 7 rotates, under the transmission action of the second transmission belt 112, the corresponding crushing roller 3 can also rotate. Figure 2 As shown, each of the two crushing rollers 3 is fixed with a transmission gear 12 that meshes with each other. Therefore, when one of the crushing rollers 3 rotates, the other crushing roller 3 can also rotate under the meshing transmission action of the transmission gear 12, so that the pair of crushing rollers 3 rotate and mesh with each other to thoroughly crush the raw material.

[0027] As for how the pair of baffles 4 control the opening and closing of the bottom opening of the crushing chamber 2, such as Figure 3 As shown, the bottom of the crushing chamber 2 is connected to the discharge channel 13. The inner wall of the discharge channel 13 is fixed with a trapezoidal groove 14. The bottom of the trapezoidal groove 14 is provided with a discharge hole 15. A pair of adjusting cylinders 16 are fixed on the frame 1. The output ends of the two adjusting cylinders 16 are respectively fixed to the opposite sides of the two baffles 4. When the two adjusting cylinders 16 are pushed out, the two baffles 4 move relative to each other, thereby blocking the discharge hole 15 at the bottom of the trapezoidal groove 14 and closing the bottom opening of the crushing chamber 2. When the two adjusting cylinders 16 are retracted, the two baffles 4 move in opposite directions, and the baffles 4 can no longer block the discharge hole 15 at the bottom of the trapezoidal groove 14, thus opening the bottom opening of the crushing chamber 2. The powder can then fall from the bottom opening of the crushing chamber 2 onto the trapezoidal screen 5.

[0028] To improve the screening effect of the trapezoidal screen 5, the trapezoidal screen 5 can be shaken up and down for screening, such as... Figure 3As shown, a pair of T-shaped seats 17 are fixed on the frame 1. Multiple guide columns 18 are slidably arranged inside the T-shaped seats 17. A mounting base 19 is fixed above the multiple guide columns 18. Springs 20 are sleeved on the outside of the multiple guide columns 18. The top surface of the springs 20 is fixed to the bottom surface of the mounting base 19. The bottom surface of the springs 20 is fixed to the top surface of the T-shaped seats 17. A vibration motor 21 is fixed to the top surface of the mounting base 19. A mounting plate 22 is fixed inside the pair of mounting bases 19. The trapezoidal screen 5 is detachably mounted on the mounting plate 22.

[0029] The mounting plate 22 has a mounting groove at its front end for mounting the trapezoidal screen 5. The trapezoidal screen 5 is placed in the mounting groove and abuts against its inner back wall, and then fixed to the mounting plate 22 with bolts. The T-shaped seat 17 has a guide hole for the guide column 18 to move up and down. Under the guidance of the guide hole, the guide column 18 can move up and down within the T-shaped seat 17.

[0030] After the crushed powder falls into the trapezoidal screen 5, the vibrating motor 21 starts. Under the action of the spring 20, the trapezoidal screen 5 can move up and down, and the range of motion is greater, which makes the sieving efficiency of the crushed powder higher. The powder that meets the requirements falls into the conveying bin 6 through the trapezoidal screen 5 and is sent away. After sieving multiple times, when the powder in the trapezoidal screen 5 reaches a certain amount, the trapezoidal screen 5 can be removed, and the powder that does not meet the requirements in the trapezoidal screen 5 can be poured back into the crushing bin 2 for crushing.

[0031] The powder falling into the conveying chamber 6 is driven by the conveying rod 7 to rotate the spiral blades 8, and then the powder is sent out from the bottom opening through the spiral blades 8 and collected by the material frame placed at the bottom of the opening.

[0032] In summary, in use, this invention allows material to be fed into the crushing chamber 2 through the top opening, and crushed by the relatively rotating and interlocking crushing rollers 3. During the crushing process, the two baffles 4 are in contact to keep the bottom opening of the crushing chamber 2 closed, allowing the material to be continuously crushed within the crushing chamber 2. This reduces the possibility of the material being discharged directly from the bottom opening without being fully crushed. After a certain crushing time, the two baffles 4 move in opposite directions, and the material can be guided into the trapezoidal screen 5 through the discharge channel 13. The vibrating motor 21, in conjunction with the spring 20, moves the material through the trapezoidal screen. 5. Screening the materials helps improve the screening effect. Powder that meets the requirements can enter the conveying bin 6 through the trapezoidal screen 5 and be collected by the spiral blades 8. After screening multiple times, when the amount of powder in the trapezoidal screen 5 reaches a certain amount, the trapezoidal screen 5 can be removed. The powder that does not meet the requirements in the trapezoidal screen 5 can be poured back into the crushing bin 2 for crushing. The powder falling into the conveying bin 6 can be driven by the conveying rod 7 to rotate the spiral blades 8, and the powder can be automatically sent out from the bottom opening by the spiral blades 8 and collected by the material frame placed at the bottom of the opening, realizing automated material collection.

[0033] When the two adjusting cylinders 16 extend, the two baffles 4 move relative to each other, thereby blocking the discharge hole 15 at the bottom of the trapezoidal groove 14 and closing the bottom opening of the crushing chamber 2. When the two adjusting cylinders 16 retract, the two baffles 4 move in opposite directions, and the baffles 4 can no longer block the discharge hole 15 at the bottom of the trapezoidal groove 14, thus opening the bottom opening of the crushing chamber 2. The opening and closing of the bottom opening of the crushing chamber 2 can be achieved by the two baffles 4, realizing automatic feeding and flexibly adjusting the crushing time.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of this utility model.

Claims

1. A raw material crusher for water-reducing agent production, characterized in that, The machine includes a crushing chamber (2) fixed on a frame (1), a pair of crushing rollers (3) that can rotate relative to each other are provided in the crushing chamber (2), a pair of baffles (4) that can move relative to each other are provided at the bottom opening of the crushing chamber (2), a trapezoidal screen (5) located below the baffles (4) and that can move up and down is also provided on the frame (1), a conveying chamber (6) is also fixed on the frame (1), the top opening of the conveying chamber (6) is located below the trapezoidal screen (5), a rotatable conveying rod (7) is provided in the conveying chamber (6), and a spiral blade (8) for conveying materials is fixed on the outside of the conveying rod (7).

2. The raw material crusher for water-reducing agent production according to claim 1, characterized in that, A drive motor (9) is fixed on the frame (1). The left end of the conveying rod (7) extends to the left side of the conveying chamber (6). The left end of the crushing roller (3) extends to the left side of the crushing chamber (2). Pulleys (10) are fixed on the output end of the drive motor (9), the conveying rod (7), and the crushing roller (3). The pulleys (10) on the conveying rod (7) and the pulleys (10) on the output end of the drive motor (9) are connected by a first transmission belt (111). The pulleys (10) on the conveying rod (7) and the pulleys (10) on the crushing roller (3) are connected by a second transmission belt (112). Transmission gears (12) that mesh with each other are fixed on both crushing rollers (3).

3. The raw material crusher for water-reducing agent production according to claim 1, characterized in that, The bottom of the crushing chamber (2) is connected to the discharge channel (13), the inner wall of the discharge channel (13) is fixed with a trapezoidal groove (14), the bottom of the trapezoidal groove (14) is provided with a discharge hole (15), and a pair of adjusting cylinders (16) are fixed on the frame (1) and are arranged opposite to each other. The output ends of the two adjusting cylinders (16) are respectively fixed to the opposite sides of the two baffles (4).

4. The raw material crusher for water-reducing agent production according to claim 1, characterized in that, A pair of T-shaped seats (17) are fixed on the frame (1). Multiple guide columns (18) are slidably arranged inside the T-shaped seats (17). A mounting base (19) is fixed above the multiple guide columns (18). A vibration motor (21) is fixed on the top surface of the mounting base (19). A mounting plate (22) is fixed inside the pair of mounting bases (19). The trapezoidal screen (5) is detachably installed on the mounting plate (22).

5. The raw material crusher for water-reducing agent production according to claim 4, characterized in that, A spring (20) is fitted on the outer side of the multiple guide posts (18). The top surface of the spring (20) is fixed to the bottom surface of the mounting base (19), and the bottom surface of the spring (20) is fixed to the top surface of the T-shaped base (17).

6. The raw material crusher for water-reducing agent production according to claim 4, characterized in that, The front end of the mounting plate (22) is provided with a mounting groove for installing the trapezoidal screen (5). The mounting plate (22) is fastened to the mounting plate (22) by bolts. The T-shaped seat (17) is provided with a guide hole for the guide column (18) to move up and down.

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