Coarse aggregate pretreatment device

By designing a rolling roller, transmission component, a rough aggregate processing device to re -screw, moving block and nozzle head, solve the problem of independent placement of dead corners and drying equipment, and realize efficient multi -position cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and rapid cleaning and fast position cleaning and rapid cleaning and rapid cleaning and fast position cleaning and rapid cleaning and rapid cleaning and fast positioning and fast positioning. Drying has improved work efficiency.

CN222402511UActive Publication Date: 2025-01-28NANNING TENGNING COMMERICAL CONCRETE CO LTD
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Patent Information

Application Number
CN202420987252.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-01-28
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

The existing coarse aggregate pretreatment devices are prone to cleaning dead corners during cleaning, and the drying equipment needs to be placed independently to transfer the coarse aggregate, which reduces work efficiency.

Method used

A kind of coarse aggregate processing device is designed, including multiple rotor rollers, transmission components, re -screws, moving blocks and nozzles. By the cooperation of rotating rollers and transmission components, multi -place cleaning of the coarse aggregate is achieved; the moving block drives the sprinkler to carry out the round -trip movement, expand the water spray range, and avoid cleaning the dead end; the heating box is connected to the processing box, saving the transfer time, and improved drying efficiency.

Benefits of technology

Effectively avoid cleaning the dead ends and improve the cleaning effect of rough aggregate; by direct connection with the heating box, the transfer time of coarse aggregate is reduced, and the overall pre -processing efficiency is improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of coarse aggregate pretreatment, and provides a coarse aggregate pretreatment device, which comprises a treatment box, a first transmission assembly, a second transmission assembly, a plurality of second transmission assemblies, a plurality of first transmission assemblies, a plurality of second transmission assemblies and a plurality of second transmission assemblies, and the first transmission assemblies are arranged at one ends, penetrating through the treatment box to the outside, of the plurality of rotating rollers; the outer surface of a chain of the first transmission assembly is in meshed connection with a plurality of auxiliary assemblies; the second transmission assembly is arranged at the end, penetrating through the treatment box to the outside, of one rotating roller, and a third transmission assembly is arranged at the end, away from the rotating rollers, of the second transmission assembly; when the device is used, the movable block drives the spray head to move back and forth when moving back and forth, so that the water spraying range of the spray head is conveniently expanded, coarse aggregate in the treatment box is covered, the rotating coarse aggregate can be conveniently cleaned at multiple positions, and the situation that cleaning dead angles occur due to the fact that the coarse aggregate is in contact with other objects is avoided; and the cleaning effect can be improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of coarse aggregate pretreatment, in particular to a coarse aggregate pretreatment device. Background Art

[0002] Coarse aggregate pretreatment is a series of processing operations performed on coarse aggregates such as crushed stone and pebbles used to make concrete or as roadbed materials in fields such as concrete and road construction to improve their properties and ensure the quality of the final product.

[0003] However, the prior art has the following disadvantages when used: the existing pretreatment device generally uses clean water to rinse the surface of the coarse aggregate to remove dirt, dust and other impurities when cleaning the coarse aggregate, but the contact surface between the coarse aggregate and other objects is a dead corner for clean water rinsing, and the cleaning effect of clean water on the dead corner is general. In addition, when the water content of the coarse aggregate is high, it needs to be dried to avoid affecting the mix design of the concrete and the mechanical properties after hardening. However, the existing drying equipment for drying coarse aggregate is generally placed in one place for drying work, so the coarse aggregate needs to be transferred, which is not conducive to improving the work efficiency of coarse aggregate pretreatment. Therefore, a coarse aggregate pretreatment device is urgently needed to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the existing pretreatment device in the prior art, when cleaning the coarse aggregate, generally uses clean water to rinse the surface of the coarse aggregate to remove dirt, dust and other impurities, but the contact surface between the coarse aggregate and other objects is a dead corner for clean water rinsing, and the cleaning effect of clean water on the dead corner is general. In addition, when the water content of the coarse aggregate is high, it needs to be dried to avoid affecting the mix design of the concrete and the mechanical properties after hardening. However, the existing drying equipment for drying the coarse aggregate is generally placed in one place for drying work, so the coarse aggregate needs to be transferred, which is not conducive to improving the work efficiency of the coarse aggregate pretreatment.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a coarse aggregate pretreatment device, comprising: a treatment box, one end of which is equipped with a plurality of rotating rollers through bearings, and further comprising:

[0006] A first transmission assembly is arranged at one end of the plurality of rotating rollers penetrating the processing box to the outside, and the outer surface of the chain of the first transmission assembly is meshedly connected with a plurality of auxiliary assemblies;

[0007] A second transmission assembly is arranged at one end of one of the rotating rollers that passes through the processing box to the outside, and a third transmission assembly is arranged at one end of the second transmission assembly away from the rotating roller;

[0008] Two reciprocating screw rods are installed at one end of the processing box away from the rotating roller through bearings, and the outer surfaces of the two reciprocating screw rods are threadedly sleeved with moving blocks;

[0009] A plurality of nozzles are fixedly mounted on one end of the moving block away from the reciprocating screw rod, and a motor is fixedly mounted on one end of the processing box close to the second transmission assembly.

[0010] Preferably, the output end of the motor is coaxially fixedly connected to one end of one of the rotating rollers that passes through the processing box to the outside, the rotating shafts of multiple auxiliary components are installed on one end of the processing box close to the first transmission component through bearings, and the two reciprocating screws pass through one end of the processing box and are fixedly sleeved on the inner ring of the worm gear of the third transmission component.

[0011] The technical effect of adopting the above further scheme is: the moving block is initially hidden in one end of the processing box, the staff adds coarse aggregate into the processing box, the coarse aggregate is located above a plurality of rotating rollers, and an external power supply is turned on. The staff controls the motor to drive the rotating roller fixedly connected at one end of the output end to rotate, and the rotating roller drives the first transmission component to move when it rotates. The first transmission component is composed of a plurality of sprockets and a chain, and the inner rings of the plurality of sprockets are fixedly sleeved on one end of the plurality of rotating rollers. When the chain moves, it is limited by the sprocket of the auxiliary component so that the chain and the sprocket form an angle so that the chain can drive the plurality of sprockets to rotate. The auxiliary component is composed of a plurality of rotating shafts and a plurality of sprockets. When the first transmission component moves, it drives the plurality of rotating rollers to rotate, thereby rotating the coarse aggregate in contact with the plurality of rotating rollers. When the rotating roller rotates, it drives the second transmission component to move. The second transmission component is composed of two pulleys and a belt, and the two pulleys are respectively fixedly sleeved on one end of the rotating roller and one end of one of the rotating shafts of the third transmission component. When the rotating roller rotates, one of the pulleys of the second transmission assembly rotates, and the pulley drives the belt and the other pulley to rotate. When the other pulley rotates, it drives one of the rotating shafts of the third transmission assembly to rotate. The third transmission assembly is composed of two rotating shafts, two worms and two worm wheels, and the other rotating shaft is fixedly connected to the opposite end of the two worms. When one of the rotating shafts rotates, it drives the worm fixed at one end thereof to rotate. When the worm rotates, it drives the other rotating shaft and the other worm to rotate. When the two worms rotate, they drive the worm wheels meshing with them to rotate. When the worm wheels rotate, they drive the reciprocating screw fixed on its inner ring to rotate. When the reciprocating screw rotates, it drives the moving block threadedly sleeved with it to perform a horizontal reciprocating motion in one end of the processing box. When the moving block reciprocates, it drives the nozzle to perform a reciprocating motion, which is convenient for expanding the water spraying range of the nozzle and covering the coarse aggregate in the processing box. It is beneficial to clean the rotating coarse aggregate in multiple positions, avoid the situation where the coarse aggregate contacts with other objects and forms a cleaning dead angle, and improve the cleaning effect.

[0012] Preferably, the rotating shaft of the third transmission assembly is installed at one end of the processing box through a bearing, the end of the moving block away from the nozzle is connected to the external municipal water supply through a water pipe, and a heating box is fixedly installed at one end of the processing box away from the motor.

[0013] The technical effect of adopting the above further solution is that the heating box is connected to the processing box, which saves time in transferring coarse aggregate and improves work efficiency.

[0014] Preferably, a plurality of heating blocks are fixedly mounted on the bottom of the heating box, and a plurality of arc-shaped rods are fixedly mounted on one end of the heating box close to the rotating roller.

[0015] The technical effect of adopting the above further solution is: the provision of the arc rod facilitates the separation of the coarse aggregate from the heating block, thereby preventing the coarse aggregate from impacting and damaging the heating block.

[0016] Preferably, two hydraulic rods are fixedly mounted on one end of the processing box away from the moving block, and a lifting frame is fixedly mounted on the output ends of the two hydraulic rods.

[0017] The technical effect of adopting the above further solution is: the setting of the lifting frame facilitates the installation of the guide rod, so that one end of the guide rod is higher than the other end.

[0018] Preferably, a plurality of guide rods are fixedly mounted on one end of the lifting frame away from the hydraulic rod, and the positions of the plurality of guide rods and the plurality of rotating rollers are staggered with each other.

[0019] The technical effect of adopting the above further solution is that the multiple guide rods and the multiple rotating rollers are staggered with each other, so that the guide rods will not collide with the rotating rollers when they are raised or lowered.

[0020] Preferably, two slide grooves are provided at one end of the processing box close to the lifting frame, and two ends of the lifting frame away from the hydraulic rod are slidably installed on the inner walls of the two slide grooves.

[0021] The technical effect of adopting the above further solution is that the hydraulic rod is fixed to the bottom of the processing box, which facilitates improving the stability of the hydraulic rod.

[0022] Preferably, connection frames are fixedly installed at both ends of the lifting frame located outside the slide slot, and baffles are fixedly installed at one end of the two connection frames close to the moving block.

[0023] The technical effect of adopting the above further solution is that the setting of the baffle makes it easy to block the discharge port of the processing box.

[0024] Compared with the prior art, the advantages and positive effects of the utility model are:

[0025] 1. In the utility model, when in use, the moving block drives the nozzle to move back and forth during the reciprocating motion, which is convenient for expanding the water spraying range of the nozzle and covering the coarse aggregate in the processing box, which is beneficial for cleaning the rotating coarse aggregate in multiple positions, avoiding the contact between the coarse aggregate and other objects and causing cleaning dead corners, which is beneficial for improving the cleaning effect.

[0026] 2. In the utility model, when in use, one end of the guide rod is high and the other end is low, and the low end is close to the baffle, which is convenient for lifting the coarse aggregate on the rotating roller upward. At the same time, the coarse aggregate slides to the lower part of the guide rod under the influence of gravity, thereby leaving the processing box and entering the heating box, and is supported by multiple arc rods. At this time, the heating block works to heat and dry the coarse aggregate, which is beneficial to improve the work efficiency of coarse aggregate pretreatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a coarse aggregate pretreatment device provided by the utility model;

[0028] Figure 2 A schematic top view of a coarse aggregate pretreatment device provided by the utility model;

[0029] Figure 3 A schematic diagram of a cross-sectional three-dimensional structure of a coarse aggregate pretreatment device provided by the utility model;

[0030] Figure 4 A coarse aggregate pretreatment device provided by the utility model Figure 3 Enlarged view of point A.

[0031] Legend: 1. Processing box; 101. Heating box; 102. Arc rod; 103. Heating block; 104. Hydraulic rod; 105. Lifting frame; 106. Guide rod; 107. Connecting frame; 108. Baffle; 109. Slide; 2. Rotating roller; 3. First transmission assembly; 4. Auxiliary assembly; 5. Motor; 6. Second transmission assembly; 7. Third transmission assembly; 8. Reciprocating screw; 9. Moving block; 10. Nozzle. DETAILED DESCRIPTION

[0032] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0034] Embodiment 1, as Figure 1 - Figure 4 As shown, the utility model provides a coarse aggregate pretreatment device, comprising: a treatment box 1, one end of which is equipped with a plurality of rotating rollers 2 through bearings, and further comprising:

[0035] A first transmission assembly 3 is provided at one end of the plurality of rotating rollers 2 that penetrate the processing box 1 to the outside, and the outer surface of the chain of the first transmission assembly 3 is meshedly connected with a plurality of auxiliary assemblies 4;

[0036] A second transmission assembly 6 is arranged at one end of one of the rotating rollers 2 that passes through the processing box 1 to the outside, and a third transmission assembly 7 is arranged at one end of the second transmission assembly 6 away from the rotating roller 2;

[0037] Two reciprocating screw rods 8 are installed at one end of the processing box 1 away from the rotating roller 2 through bearings, and the outer surfaces of the two reciprocating screw rods 8 are threadedly sleeved with moving blocks 9;

[0038] A plurality of nozzles 10 are fixedly mounted on one end of the moving block 9 away from the reciprocating screw 8 , and a motor 5 is fixedly mounted on one end of the processing box 1 close to the second transmission assembly 6 .

[0039] In the present embodiment, when in use, the moving block 9 is initially hidden in one end of the processing box 1. The staff adds the coarse aggregate into the processing box 1. The coarse aggregate is located above the multiple rotating rollers 2. The external power supply is turned on. The staff controls the motor 5 to work and drives the rotating roller 2 fixedly connected at one end of the output end thereof to rotate. When the rotating roller 2 rotates, it drives the first transmission component 3 to move. The first transmission component 3 is composed of multiple sprockets and a chain. The inner rings of the multiple sprockets are fixedly sleeved on one end of the multiple rotating rollers 2. When the chain moves, it is limited by the sprocket of the auxiliary component 4, so that the chain and the sprocket are wrapped at an angle, so that the chain can drive the multiple sprockets to rotate. The auxiliary component 4 is composed of multiple rotating shafts and multiple sprockets. When the first transmission component 3 moves, it drives the multiple rotating rollers 2 to rotate, thereby rotating the coarse aggregate in contact with the multiple rotating rollers 2. When the rotating roller 2 rotates, it drives the second transmission component 6 to move. The second transmission component 6 is composed of two pulleys and a belt. The two pulleys are respectively fixedly sleeved on one end of the rotating roller 2 and one end of one of the rotating shafts of the third transmission component 7. , it is convenient for one of the pulleys of the second transmission assembly 6 to rotate when the rotating roller 2 rotates, and the pulley drives the belt and the other pulley to rotate. When the other pulley rotates, it drives one of the rotating shafts of the third transmission assembly 7 to rotate. The third transmission assembly 7 is composed of two rotating shafts, two worms and two worm wheels. The other rotating shaft is fixedly connected to the opposite end of the two worms. When one of the rotating shafts rotates, it drives the worm fixed at one end thereof to rotate. When the worm rotates, it drives the other rotating shaft and the other worm to rotate. When the two worms rotate, they drive the worm wheels meshing with them to rotate. When the turbine rotates, it drives the reciprocating screw 8 fixed on its inner ring to rotate. When the reciprocating screw 8 rotates, it drives the moving block 9 threadedly sleeved therewith to perform a lateral reciprocating motion in one end of the processing box 1. When the moving block 9 reciprocates, it drives the nozzle 10 to perform a reciprocating motion, which is convenient for expanding the water spraying range of the nozzle 10, covering the coarse aggregate in the processing box 1, and facilitating the multi-position cleaning of the rotating coarse aggregate, avoiding the situation where the coarse aggregate contacts with other objects and causes a cleaning dead angle, which is conducive to improving the cleaning effect.

[0040] Embodiment 2, as Figure 1 - Figure 4As shown, the output end of the motor 5 is coaxially fixedly connected with one end of one of the rotating rollers 2 that passes through the treatment box 1 to the outside, the rotating shafts of multiple auxiliary components 4 are installed at the end of the treatment box 1 close to the first transmission component 3 through bearings, two reciprocating screws 8 pass through one end of the treatment box 1 and are fixedly sleeved on the inner ring of the worm gear of the third transmission component 7, the rotating shaft of the third transmission component 7 is installed at one end of the treatment box 1 through bearings, the end of the moving block 9 away from the nozzle 10 is connected to the external municipal water supply through a water pipe, a heating box 101 is fixedly installed at the end of the treatment box 1 away from the motor 5, a plurality of heating blocks 103 are fixedly installed at the bottom of the heating box 101, and a plurality of arcs are fixedly installed at the end of the heating box 101 close to the rotating roller 2 shaped rod 102, two hydraulic rods 104 are fixedly installed at one end of the processing box 1 away from the moving block 9, and a lifting frame 105 is fixedly installed at the output ends of the two hydraulic rods 104, and a plurality of guide rods 106 are fixedly installed at one end of the lifting frame 105 away from the hydraulic rods 104. The positions of the plurality of guide rods 106 and the plurality of rotating rollers 2 are staggered with each other, and two slide grooves 109 are provided at one end of the processing box 1 close to the lifting frame 105. The two ends of the lifting frame 105 away from the hydraulic rods 104 are slidably installed on the inner walls of the two slide grooves 109, and the two ends of the lifting frame 105 located outside the slide grooves 109 are fixedly installed with connecting frames 107, and the two connecting frames 107 are fixedly installed with baffles 108 at one end close to the moving block 9.

[0041] In this embodiment, when in use, after cleaning is completed, the moving block 9 is moved to the initial position and hidden in one end of the processing box 1. The staff controls the hydraulic rod 104 to work, and the output end drives the lifting frame 105 to rise. The two ends of the lifting frame 105 slide in the slide groove 109 and drive the connecting frame 107 to rise. When the connecting frame 107 rises, it drives the guide rod 106 and the baffle 108 to rise. One end of the guide rod 106 is high and the other end is low, and the low end is close to the baffle 108, which is convenient for lifting the coarse aggregate on the rotating roller 2 upward. At the same time, the coarse aggregate slides to the lower part of the guide rod 106 under the influence of gravity, thereby leaving the processing box 1 and entering the heating box 101, and is supported by multiple arc rods 102. At this time, the heating block 103 works to heat and dry the coarse aggregate, which is beneficial to improve the work efficiency of the coarse aggregate pretreatment.

[0042] Working principle: When in use, the moving block 9 is initially hidden in one end of the processing box 1. The staff adds coarse aggregate into the processing box 1, and the coarse aggregate is located above multiple rotating rollers 2. The external power supply is turned on. The staff controls the motor 5 to drive the rotating roller 2 fixedly connected to one end of its output end to rotate. When the rotating roller 2 rotates, it drives the first transmission component 3 to move. The first transmission component 3 is composed of multiple sprockets and a chain. The inner rings of the multiple sprockets are fixedly sleeved on one end of the multiple rotating rollers 2. When the chain moves, it is limited by the sprocket of the auxiliary component 4, so that the chain and the sprocket are wrapped at an angle, so that the chain can drive the multiple sprockets to rotate. The auxiliary component 4 is composed of multiple rotating shafts and multiple sprockets. When the first transmission component 3 moves, it drives multiple rotating The rotating roller 2 rotates, thereby rotating the coarse aggregate in contact with the multiple rotating rollers 2. When the rotating rollers 2 rotate, the second transmission assembly 6 is driven to move. The second transmission assembly 6 consists of two pulleys and a belt. The two pulleys are respectively fixedly mounted on one end of the rotating roller 2 and one end of one of the rotating shafts of the third transmission assembly 7, so that when the rotating roller 2 rotates, one of the pulleys of the second transmission assembly 6 rotates, and the pulley drives the belt and the other pulley to rotate. When the other pulley rotates, it drives one of the rotating shafts of the third transmission assembly 7 to rotate. The third transmission assembly 7 consists of two rotating shafts, two worms and two worm wheels. Another rotating shaft is fixedly connected to the opposite end of the two worms. When one of the rotating shafts rotates, it drives the worm fixed at one end thereof to rotate. When the worm rotates, it drives another rotating shaft and another worm to rotate. When the two worms rotate, they drive the worm wheel meshing with them to rotate. When the turbine rotates, it drives the reciprocating screw 8 fixed on its inner ring to rotate. When the reciprocating screw 8 rotates, it drives the moving block 9 threadedly sleeved with it to perform a horizontal reciprocating motion in one end of the processing box 1. When the moving block 9 reciprocates, it drives the nozzle 10 to perform a reciprocating motion, which is convenient for expanding the water spraying range of the nozzle 10, covering the coarse aggregate in the processing box 1, and facilitating the multi-position cleaning of the rotating coarse aggregate, avoiding the contact of the coarse aggregate with other objects to cause a cleaning dead angle, which is beneficial to improve the cleaning effect. When in use, after cleaning is completed, the moving block 9 returns to the initial position and is hidden at one end of the processing box 1. Inside, the staff controls the hydraulic rod 104 to work, the output end drives the lifting frame 105 to rise, the two ends of the lifting frame 105 slide in the slide 109 and drive the connection frame 107 to rise, and when the connection frame 107 rises, it drives the guide rod 106 and the baffle 108 to rise. One end of the guide rod 106 is high and the other end is low, and the low end is close to the baffle 108, which is convenient for lifting the coarse aggregate on the rotating roller 2 upward. At the same time, the coarse aggregate slides to the lower part of the guide rod 106 under the influence of gravity, thereby leaving the processing box 1 and entering the heating box 101, and is supported by multiple arc rods 102. At this time, the heating block 103 works to heat and dry the coarse aggregate, which is conducive to improving the work efficiency of the coarse aggregate pretreatment. The model of the motor 5 is YP100B3 / 5-72V5.0-3200, the model of heating block 103 is CN-36620-50. .

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A coarse aggregate pretreatment device, comprising a treatment box (1), one end of which is provided with a plurality of rotating rollers (2) via bearings, characterized in that: Also includes: A first transmission assembly (3) is arranged at one end of the plurality of rotating rollers (2) penetrating the processing box (1) to the outside, and the outer surface of the chain of the first transmission assembly (3) is meshedly connected with a plurality of auxiliary assemblies (4); A second transmission assembly (6) is arranged at one end of one of the rotating rollers (2) passing through the processing box (1) to the outside, and a third transmission assembly (7) is arranged at one end of the second transmission assembly (6) away from the rotating roller (2); Two reciprocating screw rods (8) are mounted on one end of the processing box (1) away from the rotating roller (2) through bearings, and the outer surfaces of the two reciprocating screw rods (8) are threadedly sleeved with moving blocks (9); A plurality of nozzles (10) are fixedly mounted on one end of the moving block (9) away from the reciprocating screw rod (8), and a motor (5) is fixedly mounted on one end of the processing box (1) close to the second transmission assembly (6).

2. A coarse aggregate pretreatment device according to claim 1, characterized in that: The output end of the motor (5) is coaxially fixedly connected to one end of one of the rotating rollers (2) that passes through the processing box (1) to the outside, the rotating shafts of the plurality of auxiliary components (4) are mounted on one end of the processing box (1) close to the first transmission component (3) through bearings, and the ends of the two reciprocating screws (8) that pass through the processing box (1) are fixedly sleeved on the inner ring of the worm wheel of the third transmission component (7).

3. A coarse aggregate pretreatment device according to claim 2, characterized in that: The rotating shaft of the third transmission assembly (7) is mounted on one end of the treatment box (1) via a bearing, the end of the moving block (9) away from the nozzle (10) is connected to the external municipal water supply via a water pipe, and the end of the treatment box (1) away from the motor (5) is fixedly mounted with a heating box (101).

4. A coarse aggregate pretreatment device according to claim 3, characterized in that: A plurality of heating blocks (103) are fixedly mounted on the bottom of the heating box (101), and a plurality of arc-shaped rods (102) are fixedly mounted on one end of the heating box (101) close to the rotating roller (2).

5. A coarse aggregate pretreatment device according to claim 4, characterized in that: Two hydraulic rods (104) are fixedly mounted on one end of the processing box (1) away from the moving block (9), and a lifting frame (105) is fixedly mounted on the output ends of the two hydraulic rods (104).

6. A coarse aggregate pretreatment device according to claim 5, characterized in that: A plurality of guide rods (106) are fixedly mounted on one end of the lifting frame (105) away from the hydraulic rod (104), and the positions of the plurality of guide rods (106) and the plurality of rotating rollers (2) are staggered.

7. A coarse aggregate pretreatment device according to claim 6, characterized in that: Two slide grooves (109) are provided at one end of the processing box (1) close to the lifting frame (105), and the two ends of the lifting frame (105) away from the hydraulic rod (104) are slidably mounted on the inner walls of the two slide grooves (109).

8. A coarse aggregate pretreatment device according to claim 7, characterized in that: Both ends of the lifting frame (105) outside the slide groove (109) are fixedly installed with connection frames (107), and baffles (108) are fixedly installed at one end of the two connection frames (107) close to the moving block (9).