Raw material crushing equipment for producing anchor sealing mortar and preparation process thereof

Abstract

The application discloses a raw material crushing equipment for producing anchor sealing mortar and a preparation process thereof, and relates to the technical field of mortar raw material processing. The raw material crushing equipment for producing anchor sealing mortar comprises an outer cover, a main shaft penetratingly and rotatably installed on the outer cover, a caterpillar roller fixedly installed on the main shaft, and an impact roller fixedly installed on the main shaft and located in the outer cover. The raw material crushing equipment has the advantages that stress concentration impact and multi-stage turbulent crushing are adopted to greatly improve the crushing efficiency; the high stress formed by the hammer head and the multi-cone impact block can easily split the ore; the crushing path is prolonged by cooperating with the reflection plate and the sputtering groove, and the energy utilization rate is significantly improved; the centrifugal and magnetic linkage self-cleaning structure can automatically clean the electromagnetic fence blockage, thereby guaranteeing continuous production; the side baffle guide flow and the lateral sealing constraint are adopted to optimize the material movement, thereby reducing the energy consumption and improving the striking efficiency; the self-adaptive variable impact hammer makes the equipment stable in the whole cycle performance and longer in the service life of the wear-resistant parts.

Description

Technical Field

[0001] This invention relates to the field of mortar raw material processing technology, and in particular to a raw material crushing equipment and its preparation process for producing anchor sealing mortar. Background Technology

[0002] The production of anchor sealing mortar requires high uniformity of particle size and stability of output of quartz sand and ore aggregates. Existing impact crushing equipment for sand and gravel materials generally suffers from two major defects: First, the impact crushing efficiency is low. Traditional impact hammers have a simple structure, dispersed impact energy, and materials are prone to slippage and escape, resulting in insufficient crushing and high unit energy consumption. Second, the feed grid is prone to blockage. Large particles of material are easily stuck in the gaps of the grid and cannot be automatically cleaned. Frequent shutdowns are required for treatment, which seriously affects continuous production and leads to low finished product qualification rate and low production efficiency.

[0003] Therefore, CN212215721U discloses a reversible impact crusher with a material blockage removal device, which includes a crusher body, an impact plate body is provided at the inner side of the crusher body, an impact plate body screen plate is provided at the inner side of the impact plate body, and a material blockage removal device is provided at the inner side of the crusher body. The spiral blades of the aforementioned reversible impact crusher with a material blockage removal device are driven by a motor reducer. The material adhering to the screen plate of the impact plate is removed by the spiral motion of the blades. The movement trajectory of the blades is consistent with the groove shape of the screen plate. The device moves along the screen plate to achieve the function of cleaning the material. The device is installed on the crusher casing, and a slide rail is also installed on the casing to facilitate the operation of the material blockage removal device and effectively solve the problem of material blockage. However, in actual use, the reversible impact crusher with the aforementioned material blockage removal device still uses the ordinary hammer crushing method, which results in low crushing efficiency and the inability to remove sand and gravel stuck inside the grid, making the cleaning process relatively limited.

[0004] Therefore, a new type of raw material crushing equipment for producing anchor sealing mortar can be adopted to overcome the shortcomings of existing technologies. Summary of the Invention

[0005] The purpose of this invention is to solve the problems existing in the prior art, and to propose a raw material crushing equipment and its preparation process for the production of anchor mortar.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A raw material crushing device for producing sealing mortar includes an outer cover, a main shaft rotatably mounted through the outer cover, a track roller fixedly mounted on the main shaft, and an impact roller fixedly mounted on the main shaft and located inside the outer cover. It also includes a reflector plate fixedly mounted inside the outer cover, a hammering module fixedly mounted on the impact roller, an electromagnetic fence fixedly mounted at the bottom inside the outer cover, and two side baffles fixedly mounted on the impact roller on both sides of the hammering module. The hammering module consists of multiple sets of first impact hammers, second impact hammers, and auxiliary components. The auxiliary components are located between two adjacent second impact hammers, and hammer plates are fixedly installed on both the first and second impact hammers.

[0007] Preferably, the auxiliary component includes a hammer block, the surface of which is covered with multiple impact cones; The hammer block has a built-in impact rod, which is driven by the meshing of the first toothed plate, the toothed cylinder and the second toothed plate. It extends and retracts with the swing of the hammer block, and extends into the gap of the electromagnetic fence to clear the blockage. The impact cone and the impact rod form a double impact structure.

[0008] Preferably, the auxiliary components further include a shaft, a first sliding block, a tension spring, a swing arm, a first shaft, a first connecting rod, a second connecting rod, a second shaft, a first rotating shaft, a second slider, and an arc-shaped groove; The tension spring provides preload to limit the centrifugal swing amplitude of the swing arm, ensuring that the hammer block is flush with the end face of the second impact hammer under normal conditions. The first connecting rod and the second connecting rod are linked in parallel to share the impact load and protect the second shaft from deformation. The second slider slides along the arc groove to realize the smooth swing of the hammer block. Centrifugal force and magnetic force jointly drive the hammer block to bulge out.

[0009] Preferably, the outer cover is provided with a reflector and a sputtering groove. The material is thrown at high speed by the impact hammer and impacts the reflector. Under the guidance of the sputtering groove, turbulence is formed, which enhances the mutual collision and compression between materials. The side baffles guide the material flow, ensuring that the material falls precisely into the effective impact zone, avoiding off-center impact, empty impact, and splashing on the side walls. The reflector plate and the side baffle work together to optimize the material movement trajectory, extend the residence time in the cavity, and transform a single impact into multiple reciprocating impact crushing, thereby improving energy utilization, reducing the energy consumption per unit of material crushing, and improving the uniformity of the output particle size to meet the gradation requirements of sealing mortar, enhancing crushing efficiency and stabilizing the output quality.

[0010] Preferably, a permanent magnet is installed inside the hammer block, which generates magnetic attraction at the position of the electromagnetic fence. This magnetic attraction, combined with centrifugal force, drives the hammer block to swing. The magnetic force causes the impact rod to extend synchronously to clear the blockage, achieving self-coordination of movement and function. The electromagnetic fence has both screening and magnetic triggering functions. Qualified fine materials pass through the gaps and are discharged, while large particles are retained and crushed again.

[0011] Preferably, the impact roller is provided with annular sealing rings on both sides to seal the lateral gap of the rotor and prevent material from escaping from the side.

[0012] Preferably, the outer cover feed inlet is equipped with a buffer guide structure, which allows the material to fall into the impact center area at a uniform speed and in a concentrated manner. The guide structure suppresses the impact fluctuations of the feed and avoids material blockage and uneven force on the rotor.

[0013] Preferably, the hammering module adopts a split-combination structure, with the hammering block, impact cone, and impact rod being replaceable parts that can be replaced individually after wear, thus reducing maintenance costs.

[0014] The present invention also provides a process for producing and preparing anchor sealing mortar, including the above-mentioned raw material crushing equipment for producing anchor sealing mortar, and further including the following steps: S1. The sand and gravel material is put into the raw material crushing equipment as described above. A drive motor is installed on the outer cover. The drive motor and the track roller are driven by belt transmission to drive the main shaft and impact roller to rotate, so that the first impact hammer and the second impact hammer rotate at high speed. S2. The sand and gravel material flows along the side baffle and falls into the effective impact zone, where it is crushed by the trapezoidal hammer head 15. S3. The material is thrown at high speed onto the reflector plate, and under the action of the splashing tank, it forms turbulent disturbance. After repeated impacts and crushing, the qualified fine material is discharged through the gaps of the electromagnetic grid. S4. The working conditions inside the cavity are monitored in real time through the side window and top window to stabilize the rotation speed and feed rate, ensuring that the finished product particle size meets the production requirements of the anchor sealing mortar. This process realizes the integrated continuous operation of crushing, screening, unblocking and recirculation, with high crushing efficiency, stable output particle size and no jamming shutdown, which greatly improves the production efficiency of anchor sealing mortar raw materials and the quality of finished products. S5. According to the formula, the crushed sand and gravel, cement, expansion agent, admixtures, etc. are fed into the mixer and mixed evenly to make the sealing mortar. Finally, the fluidity, strength, expansion rate and other indicators of the sealing mortar are tested. After passing the test, it is packaged and stored.

[0015] Preferably, when crushing stone materials, the feeding speed is controlled within the range that matches the rotor speed to avoid overload or idling.

[0016] Compared with existing technologies, the advantages of this invention are: 1. This invention significantly improves crushing efficiency through stress concentration impact and multi-stage turbulent crushing. The trapezoidal concave-convex hammer and multi-cone impact block create local high stress, making brittle ores easy to split. The reflector plate and splash trough guide the material to form high-speed turbulence, extending the crushing path and increasing the number of impacts, which greatly improves energy utilization. Under the same power, the crushing efficiency is significantly improved, and the output is fine and uniform. It effectively solves the problem of low impact crushing efficiency of traditional equipment and meets the strict particle size requirements of sealing mortar.

[0017] 2. This invention adopts a centrifugal-magnetic linkage self-cleaning structure. The hammer block swings under the action of centrifugal force and electromagnetic attraction, synchronously driving the impact rod to extend into the gap of the electromagnetic fence to automatically clear the blockage. There is no need to stop the machine for manual handling, realizing the integrated linkage of crushing and blockage clearing, fundamentally solving the problem of easy blockage of the feeding fence, greatly extending the continuous operation time of the equipment, significantly improving the continuity of production and the level of automation, and reducing downtime maintenance costs.

[0018] 3. This invention optimizes material movement through side baffle guidance and lateral sealing constraint, forcing materials to concentrate in the high-energy crushing zone, preventing deviation, splashing and lateral escape, and significantly improving the effective impact rate; the sealing structure reduces dust overflow, improves the working environment, and at the same time reduces energy loss, allowing more motor output to be used for crushing work, reducing energy consumption per unit of material, and improving overall economic benefits and crushing stability at the same time.

[0019] 4. This invention features an adaptive variable impact hammer structure with tension spring limiting and centrifugal-magnetic drive, ensuring that the hammer block maintains a stable impact state under different speeds and material hardness. This solves the problem of rapid efficiency decline after wear of traditional plate hammers, resulting in stable crushing performance throughout the entire equipment cycle, extended wear-resistant parts lifespan, significantly improved maintenance cycle, and suitability for long-term continuous production needs.

[0020] 5. This invention adopts a modular and easily replaceable design and an integrated process. Wear parts such as hammer blocks and impact rods can be replaced quickly and individually, making maintenance convenient and cost-effective. Crushing, screening, unblocking, and recirculation are integrated into one unit, and process parameters can be adaptively adjusted. It has strong versatility for raw materials with different hardness and moisture content, and the finished product has high particle size consistency, comprehensively improving the production quality and efficiency of sealing mortar raw materials. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a raw material crushing device for producing anchor sealing mortar according to the present invention; Figure 2 for Figure 1 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 2 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 4 for Figure 3 A detailed structural diagram showing the internal structure of the outer casing when rotated at a certain angle; Figure 5 for Figure 4 Detailed schematic diagram of the frontal planar structure; Figure 6 for Figure 4 Enlarged schematic diagram of the middle reflector, impact module and electromagnetic fence; Figure 7 for Figure 6 Detailed schematic diagram of the frontal planar structure; Figure 8 for Figure 6 Detailed schematic diagram of the structure after removing the reflector and electromagnetic fence and rotating it by a certain angle; Figure 9 for Figure 8 Detailed schematic diagram of the structure of two second impact hammers and the auxiliary components between the two second impact hammers; Figure 10 for Figure 9 Detailed schematic diagram of the structure after one set of auxiliary components is installed and a portion of the second impact hammer is removed; Figure 11 for Figure 10 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 12 for Figure 11 Detailed schematic diagram of the structure after removing the second impact hammer on one side; Figure 13 for Figure 12 Detailed schematic diagram of the frontal planar structure; Figure 14 for Figure 12 Enlarged schematic diagram of the peripheral components of the hammer-beating block machine; Figure 15 for Figure 14 Detailed structural diagram after opening the cover plate; Figure 16 for Figure 15 Detailed schematic diagram of the structure after rotation at a certain angle; Figure 17 for Figure 15 Detailed schematic diagram of the structure after the hammer-hammered block has been cut open; Figure 18 for Figure 17 Detailed schematic diagram of the structure after the middle impact rod extends out of the hammer block.

[0022] In the diagram: 1 Outer cover, 2 Main shaft, 3 Track roller, 4 Side window, 5 Top window, 6 Reflector, 7 Hammering module, 8 Electromagnetic fence, 9 Sputtering groove, 10 Side baffle, 11 Impact roller, 12 First impact hammer, 13 Second impact hammer, 14 Hammer plate, 15 Hammer head, 16 Auxiliary component, 17 Shaft, 18 First sliding block, 19 Tension spring, 20 Swing arm, 21 First shaft, 22 First connecting rod, 23 Hammering block, 24 Second connecting rod, 25 Second shaft, 26 First rotating shaft, 27 Second slider, 28 Arc groove, 29 Cover plate, 30 Impact cone, 31 Protective sleeve, 32 Permanent magnet, 33 Impact rod, 34 First toothed plate, 35 Connecting rod, 36 Toothed cylinder, 37 Second toothed plate. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: Refer to Figures 1-8 A raw material crushing device for producing sealing mortar includes an outer cover 1, a main shaft 2 rotatably mounted on the outer cover 1, a track roller 3 fixedly mounted on the main shaft 2, and an impact roller 11 fixedly mounted on the main shaft 2 and located inside the outer cover 1. It also includes a reflector plate 6 fixedly mounted inside the outer cover 1, a hammering module 7 fixedly mounted on the impact roller 11, an electromagnetic fence 8 fixedly mounted at the bottom inside the outer cover 1, and two side baffles 10 fixedly mounted on the impact roller 11 on both sides of the hammering module 7. The outer cover 1 serves as the load-bearing and protective structure of the entire machine. The main shaft 2 passes through the outer cover 1 and achieves rotational engagement, providing rotational power input for crushing. The track roller 3 is fixed on the main shaft 2 and is used for belt transmission with the drive motor to smoothly transmit power to the main shaft 2, ensuring stable transmission and no slippage. The impact roller 11 is rigidly fixed to the main shaft 2 and rotates synchronously with the main shaft 2 at high speed, providing a rotational foundation for the hammering module 7. The reflector plate 6 is fixedly installed on the inner wall of the outer cover 1, forming a corresponding impact area with the hammer module 7. It is used to receive the material that is thrown at high speed and make it bounce back, forming a reciprocating impact. The electromagnetic fence 8 is fixed at the bottom of the crushing chamber and is used to screen qualified fine materials and trigger the magnetic suction unblocking action; Side baffles 10 are symmetrically arranged on both sides of the impact roller 11, forming a constrained crushing space with the hammering module 7; Compared with existing technologies, this structure integrates power transmission, crushing execution, material rebound, screening and blockage removal into one unit. It has a compact layout, short transmission chain, and lower power loss, solving the problems of complex transmission, dispersed crushing area, and low energy utilization of traditional equipment.

[0025] The outer cover 1 is equipped with a reflector plate 6 and a splashing groove 9. The material is thrown at high speed by the impact hammer and impacts the reflector plate 6. Under the guidance of the splashing groove 9, turbulence is formed, which enhances the mutual collision and compression between materials. The reflector plate 6 is fixedly installed on the upper part of the inner wall of the outer cover 1, and is precisely aligned with the trajectory of the impact hammer. After the material is thrown out at high speed, it hits the reflector plate 6 and achieves the first rebound and crushing. The splashing groove 9 is located at the lower end of the reflector plate 6 and has an arc-shaped concave structure. It can change the direction of material rebound, so that the material forms an irregular high-speed turbulent state in the crushing chamber, forcing continuous collision, friction and shearing between materials and between materials and the chamber wall, so as to achieve multiple self-crushing. Compared with existing technologies, this structure can achieve multi-stage crushing without the need for additional power, significantly prolonging the residence time of materials in the cavity, increasing the number of impacts and energy utilization, and solving the defects of traditional equipment such as single impact, insufficient crushing, and uneven output particle size. It is more suitable for the high requirements of sealing mortar for the uniformity of fine aggregate.

[0026] The side baffle 10 guides the material flow, ensuring that the material falls precisely into the effective impact zone, avoiding off-center impact, empty impact, and splashing on the side wall. The reflector 6 works in conjunction with the side baffle 10 to optimize the material movement trajectory, extend the residence time in the cavity, and transform a single impact into multiple reciprocating impact crushing, thereby improving energy utilization, reducing the energy consumption per unit of material crushing, and improving the uniformity of the output particle size to meet the gradation requirements of the sealing mortar, enhancing crushing efficiency and stabilizing the output quality. The side baffles 10 are fixedly installed on both sides of the impact roller 11 and are in an inward-converging guide shape. They can force the falling material to the center of the hammering module 7 to avoid the material from deviating to the rotor edge or directly hitting the inner wall of the outer cover 1, thus eliminating ineffective work such as deviated impact, empty impact, splashing and escape. The reflector plate 6 is responsible for high-altitude rebound, and the side baffle 10 is responsible for lower flow guidance. Together, they form a closed-loop crushing trajectory, allowing the material to be repeatedly subjected to impact, collision, and shearing in a limited space, thus transforming it from a single impact to multiple reciprocating cycle crushing. Compared with existing technologies, this combination structure can significantly improve the effective impact rate, reduce energy waste, lower energy consumption per unit material, and make the output gradation more stable, thus completely solving the problems of scattered materials, low impact efficiency, and large particle size fluctuations in traditional equipment.

[0027] Annular sealing rings are provided on both sides of the impact roller 11 to seal the lateral gap of the rotor and prevent material from escaping from the side. The outer cover 1 feed inlet is equipped with a buffer guide structure, which makes the material fall into the impact center area at a uniform speed and in a concentrated manner. The guide structure suppresses the impact fluctuation of the feed and avoids material blockage and uneven force on the rotor. An annular sealing ring is fixedly installed on the inner wall of the outer cover 1 and forms a small gap sliding fit with the end face of the impact roller 11, completely sealing the open areas on both sides of the impact roller 11 to form a constrained crushing chamber. During high-speed rotation, the material is confined to the central crushing zone and cannot be thrown out from the lateral gaps, thus avoiding lateral energy loss and short-circuit discharge of the material. Compared with existing technologies, this sealing structure can significantly increase the residence time of materials in the crushing chamber, improve the fullness of impact crushing, reduce dust splashing, improve the working environment, and solve the common problems of lateral material leakage, incomplete crushing, and high dust levels in traditional impact crushers.

[0028] Example 2: This example differs from Example 1 in that: (Refer to...) Figures 8-18The hammering module 7 consists of multiple sets of first impact hammers 12, second impact hammers 13 and auxiliary components 16. The auxiliary components 16 are located between two adjacent second impact hammers 13. Hammer plates 14 are fixedly installed on both the first impact hammers 12 and the second impact hammers 13. The hammering module 7 uses the impact roller 11 as the mounting base, and multiple sets of first impact hammers 12 and second impact hammers 13 are evenly fixed in the circumferential direction to form the main crushing working surface. Hammer plate 14 is fixed on the material receiving surface of the impact hammer and directly bears the impact and wear. It is made of highly wear-resistant material and can protect the impact hammer base from rapid wear. The auxiliary component 16 is arranged in the gap between the two impact hammers, without occupying the main crushing space. At the same time, it supplements the impact and unblocking functions, realizing efficient use of the gap space. Compared with the existing technology, the layout of this combined hammer module 7 is more reasonable, the impact density is higher, and there are no crushing dead corners. It solves the problems of sparse arrangement of traditional impact hammers, large impact blind area and low crushing efficiency, and significantly improves the overall crushing capacity.

[0029] The hammering module 7 adopts a split-combination structure. The hammering block 23, impact cone 30, and impact rod 33 are replaceable parts and can be replaced separately after wear, reducing maintenance costs. The hammering module 7 adopts a split design for each functional component. The hammering block 23, impact cone 30, and impact rod 33 are all independent and detachable structures. When worn or damaged, there is no need to replace the entire impact hammer. Only the corresponding vulnerable parts need to be replaced to quickly restore use. Each component is fixed by bolts or plug-in, which makes disassembly and assembly simple and maintenance convenient, and can greatly shorten downtime. Compared with existing integral impact hammers, this modular design can significantly reduce consumable costs and maintenance workload, improve the continuous operation capability of the equipment, and is more suitable for large-scale continuous production of anchor sealing mortar raw materials.

[0030] The auxiliary component 16 includes a hammer block 23, on the surface of which are multiple impact cones 30; the hammer block 23 has an internal impact rod 33, which is driven by the meshing of the first toothed plate 34, the toothed cylinder 36 and the second toothed plate 37, and extends and retracts as the hammer block 23 swings, reaching into the gap of the electromagnetic fence 8 to clear blockages; the impact cones 30 and the impact rod 33 form a double impact structure. The hammer block 23 serves as an auxiliary impact body, with impact cones 30 arranged in an array on its surface. The cones have a small contact area, resulting in high stress concentration during impact, which rapidly splits the brittle ore. The impact rod 33 is built inside the hammer block 23. It forms a gear meshing transmission mechanism through the first toothed plate 34, the toothed cylinder 36, and the second toothed plate 37. When the hammer block 23 swings, the toothed cylinder 36 meshes with the second toothed plate 37 and rotates, driving the first toothed plate 34 to extend the impact rod 33, thereby achieving automatic unblocking. The impact cone 30 is responsible for strengthening crushing, while the impact rod 33 is responsible for clearing blockages. The two operate synchronously and do not interfere with each other. Compared with existing technologies, this dual impact structure has both high-efficiency crushing and automatic blockage clearing functions, with stronger crushing capacity and more thorough blockage clearing. It solves the problems of low crushing efficiency and inability to automatically clear material stuck in the fence of traditional equipment.

[0031] The auxiliary component 16 also includes a shaft 17, a first sliding block 18, a tension spring 19, a swing arm 20, a first shaft 21, a first connecting rod 22, a second connecting rod 24, a second shaft 25, a first rotating shaft 26, a second slider 27, and an arc groove 28. The tension spring 19 provides preload to limit the centrifugal swing amplitude of the swing arm 20, ensuring that the hammer block 23 is flush with the end face of the second impact hammer 13 under normal conditions. The first connecting rod 22 and the second connecting rod 24 are linked in parallel to share the impact load and protect the second shaft 25 from deformation. The second slider 27 slides along the arc groove 28 to realize the smooth swing of the hammer block 23. The centrifugal force and magnetic force jointly drive the hammer block 23 to protrude. The shaft 17 is fixedly installed, the first sliding block 18 is slidably sleeved on the shaft 17, and one end of the tension spring 19 is connected to the first sliding block 18, while the other end provides a reset tension. The swing arm 20 is rotatably connected to the first sliding block 18 via the first shaft 21, and the two ends of the first connecting rod 22 and the second connecting rod 24 are rotatably connected to the swing arm 20 and the second shaft 25 respectively, forming a parallelogram linkage mechanism; The second slider 27 slides into the arc groove 28, providing a swing guide for the hammer block 23. Under normal conditions, the tension spring 19 constrains the swing arm 20, making the hammer block 23 flush with the end face of the impact hammer, ensuring stable main crushing. When rotated to position 8 of the electromagnetic fence, the centrifugal force and the magnetic force are superimposed, overcoming the tension of the tension spring 19, so that the hammer block 23 protrudes smoothly. The parallel linkage mechanism can effectively distribute the impact load and prevent the second shaft 25 from bending and deforming. Compared with the existing technology, this auxiliary component 16 realizes the adaptive extension and retraction swing of the hammer block 23, which makes the impact state more stable, the load distribution more uniform, and the service life longer. It solves the problems of the efficiency drop sharply and the structure is prone to deformation and failure after the traditional impact hammer wears out.

[0032] A permanent magnet 32 ​​is installed inside the hammer block 23, which generates magnetic attraction force at the position of the electromagnetic grid 8. This force, combined with centrifugal force, drives the hammer block 23 to swing. The magnetic force causes the impact rod 33 to extend synchronously to clear the blockage, achieving self-coordination of movement and function. The electromagnetic grid 8 has both screening and magnetic triggering functions. Qualified fine materials pass through the gaps and are discharged, while large particles are retained and crushed again. The permanent magnet block 32 is fixedly embedded inside the hammer block 23, corresponding to the position of the electromagnetic fence 8. When the hammer block 23 rotates with the rotor to the area of ​​the electromagnetic fence 8, the electromagnetic fence 8 generates a directional magnetic attraction force on the permanent magnet block 32, which is superimposed in the same direction as the rotational centrifugal force, and together drives the hammer block 23 to swing. The swing motion is synchronously converted into the extension motion of the impact rod 33 through the gear mechanism, so that the impact rod 33 can accurately extend into the gap of the fence to push out or hook out the stuck material, achieving complete synchronization of crushing and unblocking without the need for additional drive. The electromagnetic fence 8 simultaneously performs the dual functions of screening and magnetic triggering. Qualified fine materials are discharged in time, while large particles are intercepted and recycled for further crushing. Compared with existing technologies, this structure achieves self-driven and self-coordinated unblocking action, eliminating the need for external unblocking devices such as motors and cylinders. The structure is simpler, more reliable, and consumes less energy, fundamentally solving the industry pain point of easy clogging of the feeding fence and the need for machine shutdown for cleaning.

[0033] The specific operating steps of this device are as follows: A drive motor is installed on the outer cover 1. The drive motor and the track roller 3 are driven by a belt. When the drive motor starts, it will drive the track roller 3 to rotate through the belt, thereby driving the main shaft 2 to rotate. The rotation of the main shaft 2 will drive the impact roller 11 fixedly connected to it to rotate, thereby driving the first impact hammer 12 and the second impact hammer 13 to rotate. Next, the sand and gravel material is poured into the inside of the outer cover 1 through the feed port on the outer cover 1. The sand and gravel material will fall along the outer cover 1 onto the first impact hammer 12 and the second impact hammer 13. Through the high-speed rotation of the hammer plates 14 on the first impact hammer 12 and the second impact hammer 13, the falling sand and gravel material is impacted and crushed to achieve the purpose of crushing. At the same time, the initial falling sand and gravel material will also be crushed by the high-speed impact of the hammer block 23 and the multiple impact cones 30 fixedly installed on the hammer block 23. Since the contact area between the end of the impact cone 30 and the sand and gravel material is small, the energy is more concentrated and the crushing efficiency is higher. As the second impact hammer 13 rotates, the swing arm 20 and the hammer block 23 will move away from the axis of the main shaft 2 under the action of centrifugal force. At this time, the initial tension of the tension spring 19 will restrict the swing arm 20 to prevent it from moving too much (excessive movement will cause the hammer block 23 to rotate too much around the second shaft 25, at which point the hammer block 23 will not be in contact with the end face of the second impact hammer 13). Figure 13The hammer block 23 shown is in contact with the end face of the second impact hammer 13. The tension of the spring 19 is greater than the centrifugal force on the hammer block 23 and the swing arm 20. Therefore, under the action of the spring 19, the hammer block 23 and the end face of the second impact hammer 13 can be kept flush during high-speed rotation. (In use, an elastic telescopic rod with adjustable spring force is used instead of the spring 19. This can adjust the tension and is suitable for impacts at different speeds. At the same speed, reducing the tension will cause the hammer block 23 to bulge out under the action of centrifugal force, which can play an auxiliary crushing role. After the hammer block 23 impacts and contacts the sand and gravel material...) The force between the two will react on the hammer block 23, causing the hammer block 23 to reset, thereby achieving the reciprocating extension and retraction of the hammer block 23, playing a moving vibration role, driving the sand and gravel material to form high-speed turbulent disturbance and violent vibration in the outer cover 1, causing the sand and gravel material to continuously collide, rub, and squeeze each other and between the sand and gravel material and the impact surface, thus improving the crushing efficiency. After the first impact hammer 12 and the second impact hammer 13 hammer the sand and gravel material, they will be knocked away by the huge kinetic energy, causing the sand and gravel material to collide with the reflector plate 6. Under the action of the splash groove 9, the sand and gravel material splashes and forms turbulent disturbance. The side baffle 10 is used to guide the flow of sand and gravel materials, ensuring that the sand and gravel materials can fall smoothly onto the first impact hammer 12 and the second impact hammer 13. The hammer head 15 on the second impact hammer 13 adopts a trapezoidal concave-convex design, which can not only increase the overall contact area with sand and gravel materials, but also make the impact force more concentrated and improve the crushing efficiency. As the hammer block 23 rotates to the position of the electromagnetic fence 8, the electromagnetic field of the electromagnetic fence 8 will attract the permanent magnet block 32. At this time, the hammer block 23 not only has centrifugal force but also magnetic attraction. The two forces are in the same direction, and the sum of the two forces will be greater than the tension of the tension spring 19. At this time, the hammer block 23 will rotate around the second shaft 25. (The rotation of the hammer block 23 will drive the swing arm 20 to move, and at the same time drive the first connecting rod 22 to rotate around the first shaft 21, and the second connecting rod 24 to rotate around the second shaft 25. The first connecting rod 22 and the second connecting rod 24 are parallel and can rotate synchronously. At this time, the second slider 27 will slide in the arc groove 28, and the first rotating shaft 26 will rotate on the second slider 27.) (Fixed to the second link 24) Since the first link 22 and the second link 24 rotate, the swing arm 20 will not only slide on the second impact hammer 13 through the first sliding block 18, but also rotate around the shaft 17 (the function of the first link 22 and the second link 24 here is not only to link, but also to distribute the impact force on the second shaft 25. After the sand and gravel material hits the hammer block 23, the impact force will be transmitted to the second shaft 25. At this time, the first link 22 and the second link 24 will transmit this part of the impact force to the first shaft 21, and then to the second impact hammer 13 through the second slider 27, which has a protective function and prevents the second shaft 25 from deforming). As the hammer block 23 rotates around the second shaft 25, the hammer block 23 will protrude. The second toothed plate 37 is fixedly installed on the second impact hammer 13, so there will be relative movement between the hammer block 23 and the second toothed plate 37. The toothed cylinder 36 is rotatably installed on the hammer block 23, and the toothed cylinder 36 will also move with the hammer block 23. The toothed cylinder 36 meshes with the second toothed plate 37 and moves relative to it, which will drive the toothed cylinder 36 to rotate, thereby driving the first toothed plate 34 to rotate (the rotation here is sliding on the hammer block 23, but the sliding trajectory is an arc with the second shaft 25 as the circle). The first toothed plate 34 will drive the impact rod 33 to extend out from the hammer block 23. In this way, the impact rod 33 will extend into the gap of the electromagnetic fence 8, pry out the sand and gravel material stuck in the gap and bring it into the outer cover 1 for further crushing. At the same time, the impact rod 33 also plays the role of impact crushing. The crushed sand and gravel will fall through the gaps in the electromagnetic fence 8. The crushing situation inside the outer casing 1 can be observed in real time through the side window 4, and the top window 5 is used for inspection and maintenance.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A raw material crushing device for producing anchor mortar, comprising an outer casing (1), a main shaft (2) rotatably mounted on the outer casing (1), a track roller (3) fixedly mounted on the main shaft (2), and an impact roller (11) fixedly mounted on the main shaft (2) and located inside the outer casing (1), characterized in that, It also includes a reflector (6) fixedly installed inside the outer cover (1), a hammering module (7) fixedly installed on the impact roller (11), an electromagnetic fence (8) fixedly installed at the bottom inside the outer cover (1), and two side baffles (10) fixedly installed on the impact roller (11) on both sides of the hammering module (7). The hammering module (7) consists of multiple sets of first impact hammers (12), second impact hammers (13) and auxiliary components (16). The auxiliary components (16) are located between two adjacent second impact hammers (13). Hammer plates (14) are fixedly installed on both the first impact hammers (12) and the second impact hammers (13).

2. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The auxiliary component (16) includes a hammer block (23), and the surface of the hammer block (23) is covered with multiple impact cones (30). The hammer block (23) has an internal impact rod (33), which is driven by the meshing of the first toothed plate (34), the toothed cylinder (36) and the second toothed plate (37). It extends and retracts as the hammer block (23) swings, and enters the gap of the electromagnetic fence (8) to clear the blockage. The impact cone (30) and the impact rod (33) form a double impact structure.

3. The raw material crushing equipment for producing anchor sealing mortar according to claim 2, characterized in that, The auxiliary component (16) also includes a shaft (17), a first sliding block (18), a tension spring (19), a swing arm (20), a first shaft (21), a first connecting rod (22), a second connecting rod (24), a second shaft (25), a first rotating shaft (26), a second slider (27), and an arc groove (28). The tension spring (19) provides preload, limits the centrifugal swing amplitude of the swing arm (20), and ensures that the hammer block (23) and the end face of the second impact hammer (13) are flush under normal conditions. The first connecting rod (22) and the second connecting rod (24) are linked in parallel to share the impact load and protect the second shaft (25) from deformation. The second slider (27) slides along the arc groove (28) to realize the smooth swing of the hammer block (23). The centrifugal force and magnetic force jointly drive the hammer block (23) to bulge out.

4. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The outer cover (1) is equipped with a reflector (6) and a sputtering groove (9). The material is thrown at high speed by the impact hammer and impacts the reflector (6). Under the guidance of the sputtering groove (9), turbulence is formed, which enhances the mutual collision and compression between materials. The side baffle (10) guides the material flow, so that the material falls accurately into the effective impact zone, avoiding skewed impact, empty impact and splashing on the side wall. The reflector (6) and the side baffle (10) work together to optimize the material movement trajectory, extend the residence time in the cavity, change the single impact into multiple reciprocating impact crushing, improve energy utilization, reduce the energy consumption of crushing per unit material, and at the same time improve the uniformity of the output particle size, meet the gradation requirements of the sealing mortar, enhance crushing efficiency and stabilize the output quality.

5. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The hammer block (23) is equipped with a permanent magnet block (32), which generates magnetic attraction force at the position of the electromagnetic fence (8). This force, combined with centrifugal force, drives the hammer block (23) to swing. The magnetic force causes the impact rod (33) to extend synchronously to clear the blockage, thus achieving self-coordination of movement and function. The electromagnetic fence (8) has both screening and magnetic triggering functions. Qualified fine materials pass through the gaps and are discharged, while large particles are retained and crushed again.

6. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The impact roller (11) is provided with annular sealing rings on both sides to seal the lateral gap of the rotor and prevent material from escaping from the side.

7. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The outer cover (1) is equipped with a buffer guide structure at the feed inlet, so that the material falls into the impact center area at a uniform speed and in a concentrated manner. The guide structure suppresses the impact fluctuation of the feed and avoids material blockage and uneven force on the rotor.

8. The raw material crushing equipment for producing anchor sealing mortar according to claim 1, characterized in that, The hammering module (7) adopts a split-combination structure. The hammering block (23), impact cone (30), and impact rod (33) are replaceable parts and can be replaced separately after wear, thus reducing maintenance costs.

9. A process for producing and preparing anchor sealing mortar, characterized in that, Includes the following steps: S1. The sand and gravel material is put into the raw material crushing equipment as described in claims 1-8. A drive motor is installed on the outer cover (1). The drive motor and the track roller (3) are driven by the belt to drive the main shaft (2) and the impact roller (11) to rotate, so that the first impact hammer (12) and the second impact hammer (13) rotate at high speed. S2. The sand and gravel material flows along the side baffle (10) into the effective impact zone and is crushed by the trapezoidal hammerhead (15). S3. The material is thrown at high speed to the reflector plate (6), and under the action of the splashing tank (9), it forms turbulent disturbance. After repeated impact and crushing, the qualified fine material passes through the gap of the electromagnetic fence (8) and is discharged. S4. Monitor the working conditions inside the cavity in real time through the side window (4) and top window (5), stabilize the rotation speed and feed rate, and ensure that the finished product particle size meets the production requirements of the sealing mortar. This process realizes the integrated continuous operation of crushing, screening, unblocking and reflux, with high crushing efficiency, stable output particle size, and no jamming shutdown, which greatly improves the production efficiency of sealing mortar raw materials and the quality of finished products. S5. According to the formula, the crushed sand and gravel, cement, expansion agent, admixtures, etc. are fed into the mixer and mixed evenly to make the sealing mortar. Finally, the fluidity, strength, expansion rate and other indicators of the sealing mortar are tested. After passing the test, it is packaged and stored.

10. The process for producing and preparing anchor sealing mortar according to claim 9, characterized in that, When crushing stone materials, the feed rate should be controlled within the range that matches the rotor speed to avoid overload or idling.

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