Sound insulation type ball milling equipment for construction waste

Abstract

The invention relates to the technical field of ball mills, and discloses sound insulation type ball milling equipment for construction waste, which comprises a barrel, end sockets are mounted on both sides of the barrel, a plurality of lining plates are mounted in the barrel, a driving part is mounted outside the barrel, a vibration propagation assembly is arranged in the barrel, and a sound insulation layer is arranged in the vibration propagation assembly. The vibration spreading assembly comprises a spiral groove and a plurality of circulation holes, small-particle substances enter the spiral groove under the action of the circulation holes, under the same energy consumption, the crushing efficiency is improved, due to the fact that the small-particle substances enter the spiral groove, the situation that the small-particle substances are attached to large-block substances and a lining plate is reduced, and the crushing efficiency is improved. In the prior art, when small-particle substances are attached to large-block substances, a buffer layer is formed between the grinding body and the large-block building solid waste, part of energy is absorbed, and the crushing efficiency of the large-block building solid waste is reduced, but after entering the spiral groove, the small-particle substances can be treated in a targeted mode, the adverse effects are avoided, and therefore the crushing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of ball mills, and particularly to a sound-insulated ball milling device for construction waste. Background Art

[0002] A ball mill is a commonly used crushing device. By rotating the cylinder to drive the grinding media to impact and grind the material, it can grind the material into fine powder or extremely fine powder. It has the characteristics of a large crushing ratio, simple structure, and convenient operation, and is widely favored by people.

[0003] However, there are still some problems with the existing ball mills: Firstly, in the crushing operation of construction waste, the grinding process of the existing technology is very intense, and a relatively large crushing force is exerted on the construction waste. Although in the pre-treatment steps, relevant personnel will do their best to remove small particle substances in the construction waste, due to the complex composition and extremely wide source of the construction waste itself, the existence of small particle substances is almost impossible to completely avoid.

[0004] Even after the careful screening and separation work in the early stage, in the actual crushing process, some large lumps of construction waste will still further decompose under the strong impact and extrusion of the grinding media, generating new small particle substances.

[0005] These newly generated small particle substances will continuously participate in the collision process between the grinding media and the construction waste. Since these small particle substances themselves have reached the crushing degree and have relatively low hardness, during the repeated and intense collision with the grinding media, they are like sandpaper, continuously rubbing the surface of the grinding media, thereby accelerating the wear of the grinding media. At the same time, the lining plate, which is a key component for protecting the cylinder of the ball mill, is also inevitably eroded by small particle substances.

[0006] More importantly, under ideal crushing conditions, the energy of the grinding media should be mainly concentrated on large lumps of construction waste, and through strong impact and extrusion, break them into particle sizes that meet specific requirements. However, in actual operation, when a large amount of small particle substances are mixed in, they will form a buffer layer between the grinding media and the large lumps of construction waste. When the grinding media impacts the large lumps of construction waste with a relatively large crushing force, the small particle substances will absorb a part of the energy, resulting in a reduction in the energy actually acting on the large lumps of construction waste. This not only greatly reduces the crushing efficiency of the large lumps of construction waste, but also makes the particle sizes obtained after crushing uneven, seriously affecting the efficiency and quality of the entire construction waste treatment process.

[0007] In addition, during the high-speed operation of the ball mill, due to intense grinding and large crushing force, the small particle substances will gradually aggregate and adhere to the surface of the lining plate under the strong extrusion and friction of the grinding media. As time goes by, these small particle substances will gradually form a relatively dense layered structure.

[0008] Due to the intense friction between the grinding body and construction solid waste, as well as the operation of equipment such as motors, a large amount of heat will be generated. Under normal circumstances, this heat will be smoothly dissipated into the surrounding environment through the cylinder and liner, thereby maintaining the temperature inside the ball mill stable. However, when the surface of the liner is covered with a layered structure formed by small particles, the heat transfer path is blocked. This layer of structure is like a layer of thermal insulation film, making it difficult for heat to be effectively dissipated, which in turn causes the temperature inside the ball mill to rise. Excessive temperature will not only have an adverse effect on the performance of the ball mill and reduce its working efficiency, but will also damage the key components of the equipment, further exacerbating the failure rate of the equipment, while also increasing the maintenance cost of the equipment. It is particularly noteworthy that this intense grinding and large crushing force will also cause excessive wear on the cylinder, affecting the service life and stability of the equipment.

[0009] Secondly, during the operation of the ball mill, the grinding body begins to fall driven by the inner wall of the cylinder. In this process, the grinding body located at the lower relative position of the cylinder will generate a huge impact force when it is thrown from a high place. This impact force repeatedly acts on the liner and cylinder in this area.

[0010] At the lower part of the relative position of the cylinder, the liner, as a component that directly bears the impact of the grinding body, is subjected to such high-intensity impact for a long time, and its local area will gradually deform. Since the liner is usually fixed to the inner wall of the cylinder by bolts, the local deformation of the liner will cause the tightness of the bolts to decrease, making the bolts more likely to loosen under a vibration environment. Once the bolts are loose, the fixing effect of the liner will be affected, and the liner may shift or fall off, thereby failing to effectively protect the lower part of the relative position of the cylinder. What's more serious is that when the ball mill is running at high speed, the loose bolts may fly out. These flying bolts have high speed and energy. Once they hit the operator or other equipment, they are very likely to cause serious work-related accidents, posing a huge threat to the life safety of production personnel.

[0011] In addition, since the liner is in a state of partial deformation for a long time, the cylinder connected to it will be subjected to uneven impact loads, that is, the local area at the lower relative position of the cylinder will gradually show deformation phenomena such as depression or convexity. As a relatively independent protective component, the liner can be easily disassembled and replaced when deformation or damage occurs, and the impact on production is relatively small. However, as the core structural component of the ball mill, the replacement of the cylinder is more troublesome. The replacement of the cylinder not only involves a lot of disassembly and installation work, but also requires adjustment and calibration of the structure of the entire ball mill, which not only consumes a lot of time and manpower, but may also affect the performance and stability of the ball mill, leading to production stagnation.

[0012] To this end, the present invention provides a sound-insulating ball mill device for construction waste. Summary of the Invention

[0013] The purpose of the present invention is to provide a sound-insulating ball mill device for construction waste to solve the problems raised in the above-mentioned background technology.

[0014] To achieve the above purpose, the present invention provides the following technical solution: A sound-insulating ball mill device for construction waste, including a cylinder body, both sides of the cylinder body are installed with end heads, several lining plates are installed inside the cylinder body, a driving member is installed outside the cylinder body, and a vibration propagation assembly is arranged inside the cylinder body. The vibration propagation assembly includes a spiral groove and several circulation holes; The spiral groove is opened inside the cylinder body, and several of the circulation holes are arranged in a spiral and equidistant manner between the spiral groove and the lining plate.

[0015] Preferably, a circulation sleeve is installed inside each of the circulation holes.

[0016] Preferably, several of the circulation sleeves and the circulation holes face away from the driving member side, and their volumes gradually decrease.

[0017] Preferably, the root of the spiral groove is rounded.

[0018] Preferably, the thread direction of the spiral groove is the same as the rotation direction of the cylinder body.

[0019] Preferably, the side of the spiral groove away from the driving member does not fit with the lining plate.

[0020] Preferably, the lining plates are arranged in a spiral and equidistant manner inside the cylinder body. The inner side surface of the lining plate is evenly arranged with blanking steps protruding inward. The blanking steps of two adjacent lining plates are staggered with each other, and the upper material-lifting edge of the blanking step is inclined; When the cylinder body works, the material to be processed follows the rotating blanking step and is lifted upward. As the angle between the upper material-lifting edge of the blanking step and the horizontal plane increases, the material to be processed slides and rolls onto the lower blanking step of the adjacent lining plate.

[0021] Preferably, a support frame is installed below the cylinder body. The lining plate is installed inside the cylinder body through screws and bolts. A stress dispersion assembly is arranged at the top of the support frame. The stress dispersion assembly includes a wrapping frame. The wrapping frame is an arc-shaped structure. The wrapping frame is fixedly connected to the top of the support frame. A number of first grooves are linearly and equidistantly arranged on the surface of the wrapping frame. A number of rotating discs are rotatably connected inside each of the first grooves.

[0022] Preferably, the rotating disks are tangent to the two side walls of the bolt closest to the rotating disks, and the bottom of the wrapping frame gradually expands outwards.

[0023] Preferably, a number of second grooves are formed on the surface of the wrapping frame and between every two first grooves. A resisting disk is rotatably connected to the center of the interior of each second groove. Telescopic rods are symmetrically and fixedly connected to the interior of each second groove, and the output ends of the telescopic rods are mounted on both sides of the resisting disk.

[0024] Preferably, a number of grinding balls are arranged inside the cylinder.

[0025] Preferably, the volumes of both the circulation holes and the circulation sleeve housings are smaller than the volume of the grinding balls.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By enabling small particle substances to enter the spiral groove under the action of the circulation holes, the crushing rate is improved with the same energy consumption. Since the small particle substances enter the spiral groove, the situation of their adhesion to large substances and the lining plate is reduced. In the past, when small particle substances adhered to large substances, a buffer layer would be formed between the grinding body and the large building solid waste, absorbing part of the energy and reducing the crushing efficiency of the large building solid waste. Now, after the small particle substances enter the spiral groove, they can be specifically processed, avoiding these adverse effects, thereby improving the crushing efficiency. At the same time, under the action of the spiral arrangement of the lining plate and the inclination of the blanking step, the building solid waste will slide slightly on the surface of the lining plate, thereby increasing the throwing frequency of the building solid waste. Furthermore, in this multi-level and multi-batch grinding, the grinding frequency is relatively fast, and the wear of the building solid waste on the lining plate is also less.

[0027] In addition, the hardness of small particle substances is relatively low, and they are prone to wear during repeated contact with the grinding body and the lining plate. After entering the spiral groove, this wear situation is effectively alleviated. Moreover, since the volume of the circulation holes is smaller than the volume of the grinding balls, when the substances block the circulation holes, most of the grinding balls themselves can pass through the circulation holes. Because the volume of the grinding balls is larger than that of the circulation holes, it can prevent the occurrence of blockage problems to a certain extent and ensure the normal operation of the ball mill.

[0028] Among them: when the ball mill is running, the grinding body collides with the construction waste to generate vibration, and the spiral structure of the spiral groove enables the vibration to propagate, reflect and refract inside it, thereby changing the direction and intensity distribution of the vibration, making the vibration energy more evenly distributed inside the cylinder, and further enabling the vibration to act more effectively on the construction waste, improving the crushing effect and avoiding the occurrence of local over-crushing or insufficient crushing.

[0029] Among them: During the vibration propagation process, the shape of the spiral groove causes the vibration energy to be gradually consumed, which helps to reduce the vibration amplitude during the operation of the ball mill, reduce the damage to the equipment caused by excessive vibration, improve the stability and service life of the equipment. At the same time, the vibration dissipation can also reduce the vibration transmitted to the external environment and reduce the generation of noise.

[0030] Among them: The spiral groove can play a damping role. When the grinding medium collides with construction waste to generate impact, the spiral groove can absorb and buffer part of the impact energy, avoiding the excessive impact force on the equipment caused by the instantaneous release of energy.

[0031] Among them: The movement of small particle substances and air in the spiral groove can promote the heat transfer and exchange. The heat convection effect enables the heat to be transferred from the high-temperature area to the low-temperature area more quickly, which helps to maintain the temperature stability inside the ball mill and prevent the equipment performance from being affected by local overheating.

[0032] Among them: The structure of the spiral groove increases the surface area inside the cylinder body. Compared with the traditional smooth inner wall of the cylinder, the spiral groove provides more heat dissipation area, which enables the heat to be dissipated more effectively into the surrounding environment and improves the heat dissipation efficiency of the ball mill.

[0033] Among them: After the small particle substances enter the spiral groove, the spiral shape of the spiral groove makes the small particle substances disperse and distribute in the groove. This dispersion effect avoids the excessive aggregation of small particle substances in local areas and reduces the concentrated wear of small particle substances on the grinding medium and the lining plate.

[0034] Among them: During the operation of the ball mill, the cylinder body and the spiral groove will bear various forces, such as the impact force of the grinding medium and the pressure of the material. The rounded corner transition enables the stress to be more evenly distributed in the root area, avoiding the generation and expansion of cracks caused by stress concentration.

[0035] Among them: The lining plates are arranged in a spiral equidistant manner inside the cylinder body. This arrangement method cooperates with the spiral groove, which can better guide the movement of construction waste and small particle substances inside the cylinder body, so that the material forms an orderly flow inside the cylinder, increasing the contact opportunity and collision frequency between the material and the grinding medium. At the same time, the spiral-arranged lining plates can also enhance the overall structural strength of the cylinder body and improve the stability of the equipment.

[0036] Among them: The thread direction of the spiral groove is the same as the rotation direction of the cylinder body. In this way, when the cylinder body rotates, the movement of small particle substances in the spiral groove is smoother, and the small particle substances can flow orderly along the direction of the spiral groove, avoiding the occurrence of countercurrent and jamming phenomena.

[0037] While achieving the above beneficial effects, the present invention also has the following effects: In a traditional ball mill, the cylinder body needs to bear the main grinding process and the impact crushing process. Therefore, the cylinder wall of a traditional ball mill is usually designed to be relatively thick, which directly leads to a relatively large overall weight of the equipment. This heavy design not only increases the manufacturing cost of the equipment, but also brings many inconveniences during the transportation, installation and operation of the equipment. However, in the present invention, by providing a blanking step, the impact mainly occurs on the blanking step. When construction waste moves in the cylinder body, a throwing motion will be generated when it encounters the blanking step. The collision and grinding effects between the grinding media and the construction waste are more concentrated at the blanking step. In this way, the impact force and wear force borne by the cylinder body are relatively reduced, so that the inner wall of the cylinder body can be designed to be thinner and lighter. After the cylinder wall becomes thinner, the overall weight of the equipment is significantly reduced, which not only reduces the manufacturing cost of the equipment, but also makes the equipment more flexible and convenient during transportation, installation and operation, and reduces energy consumption.

[0038] In addition, the present invention adopts a spiral attachment design method. Compared with the complex structural design of traditional ball mills, this design is simpler and more convenient during the processing. During the manufacturing process, the spiral attachment structure is easier to achieve standardized and large-scale production, which can effectively improve production efficiency and reduce production costs. At the same time, the simple processing process also helps to ensure the stability and consistency of product quality, reduce errors and defects that may be brought about by complex processing techniques, and further improve the overall performance and reliability of the equipment.

[0039] Among them: Since the cylinder wall becomes thinner, the weight of the equipment is reduced, which can reduce the transportation cost and difficulty during transportation. At the same time, large lifting equipment and complex installation techniques are not required during installation, reducing the installation time and cost.

[0040] Among them: The thinner and lighter cylinder design reduces the inertia of the equipment during operation, has a faster response speed, can adjust the operation parameters more flexibly, and improves the operation performance and production efficiency of the equipment.

[0041] Among them: The blanking step bears the main collision and grinding effects, reducing the wear of the cylinder body, extending the service life of the cylinder body, and reducing the maintenance and replacement costs of the equipment.

[0042] Among them: The spiral attachment design method makes the assembly and disassembly of the equipment more convenient. During the maintenance and repair of the equipment, the staff can operate more easily, reducing the repair time and workload.

[0043] Among them: After the cylinder wall becomes thinner, the heat dissipation performance of the equipment is improved. Compared with the thick cylinder body, the thinner and lighter cylinder body is more likely to dissipate the heat generated inside to the surrounding environment, which helps to maintain the temperature stability inside the ball mill and improve the operation stability of the equipment.

[0044] Among them: The spiral attachment structure design makes the material flow inside the equipment smoother, reduces the accumulation and blockage of materials in the cylinder body, and further improves the material processing efficiency.

[0045] Among them: Since the blanking step bears the main collision effect, the impact force on the cylinder body is reduced, which makes the vibration amplitude of the cylinder body during operation decrease, reduces the damage to other components of the equipment caused by vibration, and improves the overall stability of the equipment.

[0046] Among them: The spiral attachment design makes the appearance of the equipment more concise and beautiful, and at the same time conforms to the concept of modern industrial design, enhancing the market competitiveness of the equipment.

[0047] Among them: During the long-term operation of the equipment, the thin cylinder body design and the spiral attachment structure can better adapt to various complex working environments and working conditions requirements, ensuring the long-term stable operation of the equipment.

[0048] Among them: The spiral attachment structure design improves the space utilization rate inside the equipment, can accommodate more materials and grinding media, and further improves the production capacity of the equipment.

[0049] 2. First, the wrapping frame can provide a stable supporting effect for the bottom of the cylinder body. When the ball mill is running, during the rotation of the cylinder body, the grinding media falling from a high place will generate a huge impact force on the lower part of the relative position of the cylinder body, and the arc-shaped wrapping frame can absorb these impact forces, thus protecting the ball mill itself. Secondly, when the bolts of the lining plate tend to become loose due to long-term impact, the rotating disk can resist the nut, and during the rotation of the cylinder body, the loose nut is tightened through the action of friction and other forces, so as to maintain the tightness of the bolts and ensure that the lining plate can be stably fixed inside the cylinder body, effectively avoiding the situation that the lining plate is displaced or falls off due to the loosening of the bolts.

[0050] Among them: Due to the tightening effect of the rotating disk on the loose nut, the nut can always be kept in a relatively tight state. Under the condition of the high-speed operation of the ball mill, this way of locking the nut can effectively prevent the nut from flying out due to loosening. Avoiding the flying nut from hitting the operator or other equipment, thus eliminating the potential serious work injury accident hazard caused by the flying nut and ensuring the life safety of the production personnel.

[0051] Among them: During the working process of the ball mill, the grinding balls make a falling motion driven by the inner wall of the cylinder body, and its falling direction is exactly towards the bottom of the cylinder body. Setting the wrapping frame at this position can more directly and effectively disperse and buffer the impact force received by the bottom of the cylinder body.

[0052] Among them: the wrapping rack does not completely wrap the cylinder, and a first groove and a second groove are opened on its surface. During the rotation of the cylinder, this design allows air to flow quickly between the cylinder and the wrapping rack. During the operation of the ball mill, a large amount of heat will be generated due to the friction and collision between the grinding body and the construction waste, and the rapid flow of air can accelerate the dissipation of heat and maintain the temperature inside the ball mill stable.

[0053] Among them: when the cylinder is impacted by the grinding body, the resistance plate can play a role of buffering and shock absorption. It can absorb part of the impact force and reduce the direct effect of the impact force on the cylinder and the support frame, thereby reducing the vibration amplitude of the equipment.

[0054] Among them: the bottom of the parcel rack gradually expands outward and has an arc-shaped structure. This design increases the contact area between the parcel rack and the support frame. The larger contact area enables the parcel rack to support the cylinder more stably, thereby improving the stability of the entire ball mill. At the same time, the arc-shaped structure conforms to the principles of mechanics and can better disperse the pressure transmitted from the cylinder, avoiding deformation or damage caused by excessive local force, and further extending the service life of the equipment.

[0055] Among them: due to the effect of the stress dispersion component, the vibration of the ball mill is effectively reduced, and the equipment runs more smoothly. In this case, the resistance that the driving part needs to overcome when driving the cylinder to rotate is also reduced accordingly. According to the law of conservation of energy, when the resistance is reduced, the energy consumed by the driving part to maintain the operation of the ball mill will also be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a frontal perspective schematic diagram of the main structure of the present invention; Figure 2 It is a rear perspective schematic diagram of the main structure of the present invention; Figure 3 It is a three-dimensional schematic diagram of the falling motion of the grinding body of the present invention; Figure 4 For the present invention Figure 3 A in the middle is an enlarged three-dimensional schematic diagram of the structure; Figure 5 For the present invention Figure 3 The enlarged three-dimensional schematic diagram of the structure at B in the middle; Figure 6 For the present invention Figure 3 The enlarged three-dimensional schematic diagram of the structure at C in the middle; Figure 7 It is a plane schematic diagram of the material flow direction of the present invention; Figure 8 It is a partially cutaway stereoscopic schematic diagram of the stress dispersion assembly of the present invention; Figure 9 For the present invention Figure 8Schematic three-dimensional enlarged structure at position D in the [Chinese context]; Figure 10 This is a schematic three-dimensional partial sectional view of another angle of the stress dispersion component of the present invention.

[0057] In the figure: 11. Cylinder body; 12. Head; 13. Liner; 14. Support frame.

[0058] 2. Vibration propagation component; 20. Feeding step; 21. Spiral groove; 22. Circulation hole; 23. Circulation sleeve.

[0059] 3. Stress dispersion component; 31. Wrapping frame; 32. First groove; 33. Rotating disk; 34. Second groove; 35. Contact disk; 36. Telescopic rod. Detailed implementation manners

[0060] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0061] It should be noted that the driving member only provides the function of rotating the cylinder body 11, the external feeding device only provides the function of feeding the cylinder body 11, and the external receiving device only provides the function of discharging the cylinder body 11. The working principles and specific structures of the driving member, the external feeding device, and the external receiving device are all prior arts. Therefore, due to the universality of the above structures, the specific principles thereof will not be described in detail hereinafter.

[0062] Embodiment 1, please refer to as Figures 1 to 6 shown, a sound-insulating ball mill device for construction waste, including a cylinder body 11, heads 12 are installed on both sides of the cylinder body 11, several liners 13 are installed inside the cylinder body 11, a driving member is installed outside the cylinder body 11, and a vibration propagation component 2 is arranged inside the cylinder body 11. The vibration propagation component 2 includes a spiral groove 21 and several circulation holes 22; The spiral groove 21 is opened inside the cylinder body 11, and several circulation holes 22 are arranged in a spiral and equidistant arrangement between the spiral groove 21 and the liner 13.

[0063] Please refer to as Figures 1 to 6As shown, a flow sleeve 23 is installed inside each flow hole 22. A number of flow sleeves 23 and flow holes 22 face away from the driving member, and their volumes gradually decrease. The root of the spiral groove 21 is rounded. The thread direction of the spiral groove 21 is the same as the rotation direction of the cylinder body 11. The side of the spiral groove 21 away from the driving member does not fit against the lining plate 13. The lining plates 13 are arranged in a spiral and equidistant manner inside the cylinder body 11. The inner side of the lining plate 13 is evenly provided with blanking steps 20 protruding inward. The blanking steps 20 of two adjacent lining plates 13 near each other are staggered. The cylinder body 11 is placed horizontally, and the upper material-lifting edge of the blanking step 20 is inclined; When the cylinder body 11 works, it rotates horizontally. As the cylinder body 11 continues to rotate, the angle between the upper lifting edge of the blanking step 20 and the horizontal plane will gradually increase. During this process, the component force of the gravity of the material to be processed along the inclined plane direction of the blanking step 20 will also gradually increase. When this component force exceeds the friction force between the material and the surface of the blanking step 20 and other forces that hinder the sliding of the material, the material to be processed will start to slide and roll along the surface of the blanking step 20.

[0064] At the same time, these grinding media will form complex movement trajectories inside the cylinder body 11 driven by the rotation of the cylinder body 11. When the material to be processed starts to slide and roll, it will come into frequent contact and collision with these moving grinding media. At the same time, construction waste will also participate in this collision process. Due to the existence of the blanking step 20, the collision process between the grinding media and the construction waste is intensified. Therefore, each collision will have a certain impact and grinding effect on the construction waste, making the particle size of the material gradually decrease and the internal structure further refined and optimized. This multi-batch collision process greatly increases the interaction frequency and intensity between the material, the grinding media, and the construction waste, thus effectively improving the grinding efficiency.

[0065] It should be noted that a number of grinding balls are arranged inside the cylinder body 11. The volumes of the flow holes 22 and the flow sleeves 23 are both smaller than the volume of the grinding balls. An external feeding device is installed outside the cylinder body 11 and on the side close to the driving member. An external receiving device is installed outside the cylinder body 11 and on the side far from the external feeding device. The blanking step 20 can be installed on the lining plate 13 by means of bolt locking.

[0066] It should be noted that the composition of construction waste is relatively complex, which contains both large-particle substances, such as large lumps of concrete, bricks, etc., and small-particle substances, such as some fine sand, dust, etc.

[0067] It should be noted that in the present invention, the main grinding components are the grinding media and the feeding step 20. During the rotation of the cylinder 11, the grinding media are constantly subjected to centrifugal force and perform a throwing and falling motion. When throwing and falling from a high place, a huge impact force is generated, which powerfully crushes and grinds the construction waste entering the interior of the cylinder 11. The setting of the feeding step 20 further optimizes the grinding process. When the construction waste slides on the surface of the lining plate 13 and encounters the feeding step 20, it will perform a throwing and falling motion along the feeding step 20 under the action of gravity and the component force generated by the rotation of the cylinder 11. This throwing and falling motion increases the movement trajectory and the number of movements of the construction waste in the cylinder 11, enabling the construction waste to be repeatedly impacted and ground by the grinding media, achieving a multi-batch grinding effect and greatly improving the crushing efficiency.

[0068] In contrast, in a ball mill with a traditional structure, the wearing parts are mainly the cylinder 11 and the grinding media. During the operation of the traditional ball mill, the grinding media constantly move inside the cylinder 11, frequently contacting and colliding with the construction waste and the wall surface of the cylinder 11. Due to the hardness of the construction waste and the impact force of the grinding media, the wall surface of the cylinder 11 is easily worn. At the same time, during the long-term collision and friction process, the grinding media themselves will also gradually show wear and loss.

[0069] Specifically, please refer to Figure 7 As shown, after the operator starts the driving part, the driving part begins to provide stable rotational power for the cylinder 11, causing the cylinder 11 to rotate uniformly in the set direction and speed. At the same time, the external feeding device is started to continuously feed the construction waste into the interior of the cylinder 11.

[0070] When the construction waste enters the cylinder 11, due to the rotation of the cylinder 11, the construction waste will be jointly affected by centrifugal force, friction force and gravity. Under the guidance of the spiral arrangement of the lining plate 13, the construction waste will slide slightly along the surface of the lining plate 13. This sliding makes the movement of the construction waste in the cylinder 11 more orderly, avoiding the disorderly accumulation of materials, thereby improving the degree of dispersion of the materials, enabling the grinding media to contact the construction waste more fully, and increasing the grinding frequency.

[0071] At the same time, the setting of the feeding step 20 enables the construction waste, when sliding and encountering the feeding step 20, due to the angle between the parallel line of the feeding step 20 and the axis of the cylinder 11 being 45 degrees, the construction waste will perform a throwing and falling motion along the feeding step 20 under the action of gravity and the component force generated by the rotation of the cylinder 11. This throwing and falling motion increases the movement trajectory and the number of movements of the construction waste in the cylinder 11, enabling the construction waste to be repeatedly impacted and ground by the grinding media, achieving a multi-batch grinding effect and greatly improving the crushing efficiency.

[0072] Moreover, due to the sliding of construction waste on the surface of the lining plate 13 and the throwing movement at the blanking step 20, the relative movement between the construction waste and the lining plate 13 becomes more reasonable, reducing the direct impact and friction of the construction waste on the lining plate 13. Thus, the wear of the lining plate 13 is effectively reduced, the service life of the lining plate 13 is extended, and the maintenance cost of the equipment is lowered.

[0073] In the above process, due to the fragility of the structure of some construction waste, it starts to break when entering the inside of the cylinder body 11. At the same time, with the continuous throwing action of the grinding media, the large pieces of construction waste will gradually be broken into small pieces of materials.

[0074] Meanwhile, during the material crushing process, due to the action of centrifugal force, those small pieces of materials will enter the inside of the spiral groove 21 through the circulation holes 22 and the circulation sleeve 23 installed inside the circulation holes 22. After these small pieces of materials enter the inside of the spiral groove 21, because their volume is much smaller than other materials inside the cylinder body 11, they will be further guided and crushed under the restriction of the spiral groove 21 wall.

[0075] It is worth mentioning that the thread direction of the spiral groove 21 is the same as the rotation direction of the cylinder body 11. On the one hand, it can make the small pieces of materials move more smoothly along the groove wall inside the spiral groove 21, avoiding the disordered accumulation and jamming of materials in the groove and improving the material processing efficiency; on the other hand, this co-directional design helps to enhance the movement stability of the materials inside the spiral groove 21, enabling the materials to be more evenly subjected to the crushing force under the contact action of the groove wall, thereby improving the crushing effect. At the same time, during the material crushing process, due to the friction between the grinding media and the construction waste and the mutual collision between the materials, a large amount of heat will be generated. The structure of the spiral groove 21 increases the contact area between the materials and the air, thus increasing the heat dissipation area. At the same time, as the cylinder body 11 rotates, air forms convection inside the spiral groove 21, enhancing the heat convection effect, enabling the heat to be dissipated more quickly, effectively maintaining the temperature stability inside the ball mill, and ensuring the normal operation of the equipment.

[0076] As the crushing process continues, since the side of the spiral groove 21 far from the driving part does not fit with the lining plate 13, the small materials that are inside the spiral groove 21 and have been further crushed will be mixed with the large materials inside the cylinder body 11. Under the continuous rotation of the cylinder body 11, the mixed materials will be transported to the outside of the cylinder body 11 and finally collected through the external receiving and collecting equipment.

[0077] It should be noted that, firstly, the liners 13 arranged at equal intervals in a spiral shape can cooperate with the spiral grooves 21, so as to better guide the flow of materials, make the distribution of materials in the cylinder body 11 more uniform, avoid local material accumulation and affect the crushing effect. Secondly, the liners 13 arranged in a spiral can evenly bear the impact force of the grinding media, reduce the damage and deformation of the liners 13 caused by uneven stress, and extend the service life of the liners 13.

[0078] Secondly, when the grinding media fall and impact the construction waste and the liners 13, the generated vibration will be transmitted through the spiral grooves 21. The spiral structure of the spiral grooves 21 causes the vibration to reflect and refract during the transmission process, changing the propagation direction and energy distribution of the vibration. This vibration transmission, reflection and refraction effect enables the vibration energy to be more widely dispersed inside the cylinder body 11, thus achieving the effect of vibration dissipation. At the same time, the presence of the vibration transmission component 2 also plays a damping role. It can absorb and consume a part of the vibration energy, reduce the impact of the vibration on the cylinder body 11 and other components, and effectively reduce the noise generated by the ball mill during operation, realizing the sound insulation function.

[0079] Embodiment 2, on the basis of Embodiment 1, please refer to Figure 8 and Figure 9 As shown, a support frame 14 is installed below the cylinder body 11. The liners 13 are installed inside the cylinder body 11 through screws and bolts. A stress dispersion component 3 is arranged at the top of the support frame 14. The stress dispersion component 3 includes a wrapping frame 31. The wrapping frame 31 is of an arc-shaped structure. The wrapping frame 31 is fixedly connected to the top of the support frame 14. A number of first grooves 32 are arranged on the surface of the wrapping frame 31 at equal intervals linearly. A number of rotating disks 33 are rotatably connected inside each first groove 32.

[0080] Please refer to Figures 9 to 10 As shown, the rotating disks 33 are tangent to the two side walls of the bolt closest to the rotating disks 33. The bottom of the wrapping frame 31 gradually expands outwards. A number of second grooves 34 are arranged on the surface of the wrapping frame 31 and between every two first grooves 32. A contact disk 35 is rotatably connected at the center of the inside of the second groove 34. A number of telescopic rods 36 are symmetrically and fixedly connected inside each second groove 34. The output ends of the telescopic rods 36 are installed on both sides of the contact disk 35.

[0081] Specifically, when the cylinder body 11 starts to rotate driven by the driving member, due to the falling motion of the internal grinding media and the crushing process of the materials, vibration will inevitably be generated. This vibration will exert a continuous impact force on the bolts and nuts fixing the liners 13. Under the long-term vibration effect, the bolts and nuts are extremely likely to loosen.

[0082] However, during the rotation of the cylinder 11, when the nut fixing the liner 13 becomes loose due to vibration, since the cylinder 11 is continuously rotating, the first groove 32 corresponds to the position of the nut, and in the initial state, the rotating disk 33 is tangent to the edge of the nut. As the nut loosens, its edge will no longer remain tangent to the rotating disk 33, and at this time the edge of the nut will conflict with the rotating disk 33.

[0083] This resistance will generate a reverse force, which will tighten the loose nuts again through factors such as friction. In this way, even during the long-term operation of the ball mill, the fixing bolts and nuts of the liner 13 can maintain a good fastening state, ensuring that the liner 13 is stably installed inside the cylinder 11, providing reliable support for the grinding work.

[0084] At the same time, since the wrapping rack 31 does not completely wrap the cylinder 11 and a first groove 32 and a second groove 34 are provided on its surface, this structure enables air to form convection between the cylinder 11 and the wrapping rack 31 when the ball mill is running.

[0085] Specifically, when the cylinder 11 rotates, the surrounding air will flow on the surface of the cylinder 11, and the existence of the first groove 32 and the second groove 34 increases the channel and area for air flow. When the air flows in the first groove 32 and the second groove 34, it can quickly take away the heat generated on the surface of the cylinder 11 due to the grinding process, thereby achieving rapid cooling of the cylinder 11.

[0086] In addition, the abutment plate 35 can continuously transmit the vibration force generated by the cylinder 11 during operation to the inside of the parcel shelf 31 by abutting against the bottom of the cylinder 11. The parcel shelf 31 is an arc-shaped structure, and its bottom gradually expands outward. This structural design enables the parcel shelf 31 to evenly disperse the force over a larger area when it is subjected to the vibration force transmitted from the abutment plate 35. When the vibration force is transmitted to the parcel shelf 31, the arc-shaped structure guides the force to be distributed along the curve direction, avoiding the situation of excessive local force. At the same time, the outward expansion design of the bottom further increases the contact area between the parcel shelf 31 and the support frame 14, so that the force can be more effectively transmitted to the support frame 14, thereby improving the stability of the entire structure.

[0087] Since the stress dispersion component 3 can effectively reduce the vibration of the ball mill during operation, this has a positive impact on the energy consumption of the driving component. In the case of large vibration, the driving component needs to overcome greater resistance to maintain the stable rotation of the cylinder body 11, which will consume more energy. However, through the effective suppression of vibration by the stress dispersion component 3, the resistance that the driving component needs to overcome is reduced, thereby reducing the energy consumption of the driving component. This not only helps to save energy and reduce production costs, but also improves the overall operating efficiency of the ball mill, making it work more efficiently and stably during the construction waste treatment process.

[0088] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0089] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A soundproof ball mill for construction waste, comprising a cylinder (11), with heads (12) installed on both sides of the cylinder (11), a plurality of lining plates (13) installed inside the cylinder (11), and a driving member installed outside the cylinder (11), characterized in that: A vibration propagation component (2) is arranged inside the cylinder (11), and the vibration propagation component (2) comprises a spiral groove (21) and a plurality of flow holes (22); The spiral groove (21) is formed inside the cylinder (11), and a plurality of flow holes (22) are arranged in a spiral shape at equal intervals and formed between the spiral groove (21) and the lining plate (13).

2. The soundproof ball mill for construction waste according to claim 1, characterized in that: A circulation casing (23) is installed inside each of the circulation holes (22).

3. The soundproof ball mill for construction waste according to claim 2, characterized in that: The plurality of circulation casings (23) and the circulation holes (22) are oriented toward a side away from the driving member, and the volumes of the two gradually decrease.

4. The soundproof ball mill for construction waste according to claim 1, characterized in that: The root of the spiral groove (21) is rounded.

5. The soundproof ball mill for construction waste according to claim 1, characterized in that: The thread direction of the spiral groove (21) is the same as the rotation direction of the cylinder (11).

6. The soundproof ball mill for construction waste according to claim 1, characterized in that: The side of the spiral groove (21) away from the driving member is not in contact with the lining plate (13).

7. The soundproof ball mill for construction waste according to claim 1, characterized in that: The lining plates (13) are all arranged in a spiral shape and are equidistantly disposed inside the cylinder (11); the inner side surface of the lining plates (13) is evenly arranged with blanking steps (20) protruding inward; the blanking steps (20) close to each other of two adjacent lining plates (13) are staggered; and the upper lifting edges of the blanking steps (20) are inclined; When the cylinder (11) is working, the material to be processed is lifted upward along with the rotating blanking step (20), and as the angle between the upper lifting edge of the blanking step (20) and the horizontal plane increases, the material to be processed slides along the blanking step (20) to the blanking step (20) below the adjacent liner (13).

8. A soundproof ball mill for construction waste according to any one of claims 1 to 7, characterized in that: A support frame (14) is installed below the cylinder (11); the lining plate (13) is installed inside the cylinder (11) by means of screws and bolts; a stress dispersion component (3) is arranged on the top of the support frame (14); the stress dispersion component (3) comprises a wrapping frame (31); the wrapping frame (31) is an arc-shaped structure; the wrapping frame (31) is fixedly connected to the top of the support frame (14); a plurality of first grooves (32) are arranged linearly and equidistantly on the surface of the wrapping frame (31); a plurality of rotating disks (33) are rotatably connected inside each of the first grooves (32).

9. The soundproof ball mill for construction waste according to claim 8, characterized in that: The rotating disk (33) is tangent to two side walls of the bolt closest to the rotating disk (33), and the bottom of the parcel rack (31) gradually expands outwards.

10. The soundproof ball mill for construction waste according to claim 8, characterized in that: A plurality of second grooves (34) are provided on the surface of the parcel rack (31) and between each two first grooves (32); a contact plate (35) is rotatably connected to the center of the second groove (34); a telescopic rod (36) is symmetrically fixedly connected to the inside of each second groove (34); and output ends of the telescopic rod (36) are mounted on both sides of the contact plate (35).

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