Waste treatment equipment for building construction site

Abstract

The invention relates to the technical field of waste treatment, in particular to waste treatment equipment for a building construction site, which comprises a treatment bin, and a first crushing mechanism and a second crushing mechanism are arranged in the treatment bin; the first crushing mechanism comprises a material frame, a transmission frame and a driving assembly; the material frame drives the transmission frame to axially slide, so that the transmission ratio between the outer edge of the transmission frame and the driving assembly can be automatically adjusted according to the weight of waste materials. When the waste materials are heavy, the rotating speed of the material frame is increased to enhance the crushing capacity; and when the waste materials are light, the rotating speed of the material frame is reduced to ensure the stability of the crushing effect, so that efficient treatment of the waste materials is realized. The first smashing mechanism and the second smashing mechanism are used for smashing waste in the same treatment bin, the equipment is compact in structure, small in occupied area and suitable for being directly applied to a building construction site, and energy consumption and treatment delay in the waste transportation process are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of waste treatment, and in particular to waste treatment equipment used in a construction site. Background Art

[0002] At the construction site of a construction project, a large amount of construction waste is continuously generated in various operation links. Most of the construction waste is brittle waste, especially when some small masonry structures are demolished and lightweight partition walls are knocked off for interior decoration, a large amount of broken bricks, gypsum boards, scattered concrete blocks, etc. are generated. At present, there are many drawbacks in the treatment process of these construction wastes.

[0003] Most existing waste treatment methods use a conveying mechanism to uniformly drive construction waste into the waste treatment equipment. However, since the waste treatment equipment has a limited capacity to process waste in a unit time, and since most of the waste is broken bricks, gypsum boards, scattered concrete blocks, etc., the volume and mass of the waste in a unit time vary greatly when the waste is put in, making it very easy for the feed end of the waste treatment equipment to accumulate a lot of waste due to the continuous uniform speed of the conveying mechanism. At the same time, the accumulated waste may also cause the risk of splashing due to the effects of the crushing of the waste, which greatly affects the treatment efficiency and may also cause additional losses such as shutdown. Chinese Patent Announcement No. CN114101289B discloses an energy-saving and environmentally friendly waste treatment device for construction projects. Although this patent can be put in according to the capacity of the waste treatment device, it affects the rotation rate of the first conical gear ring after the waste is accumulated in the shell, and then indirectly affects the transmission rate of the conveyor belt through the gear meshing relationship. This indirect method may have a certain hysteresis. For example, when waste begins to accumulate, it may take a certain amount of time for the rotation speed of the first conical gear ring to drop significantly, thereby reducing the conveying rate of the conveyor belt. During this period, too much waste may enter the device, increasing the risk of device overload. And it involves complex mechanical structures such as multiple gears, rotating shafts, grinding fans, and conveyor belts. The coordination between these structures may cause more wear and failure points during long-term operation. In addition, the equipment is equipped with components for the processes of transmission, crushing, and classification, which directly leads to a large footprint of the entire device. On construction sites where every inch of land is valuable, a large amount of precious site space is occupied. At the same time, the complicated process means more operating links, which will inevitably increase the operating cycle and equipment wear, which greatly reduces the production efficiency when handling these small-sized brittle wastes. Summary of the invention

[0004] In view of the above problems, a waste treatment device for construction sites is provided. The present invention drives the transmission frame to slide axially by the material frame, so that the transmission ratio between the outer edge of the transmission frame and the driving assembly can be automatically adjusted according to the weight of the waste. When the waste is heavy, the rotation speed of the material frame is increased to enhance the crushing ability; when the waste is light, the rotation speed of the material frame is reduced to ensure the stability of the crushing effect, thereby achieving efficient treatment of the waste. The first crushing mechanism and the second crushing mechanism are completed in the same processing bin. The equipment has a compact structure and occupies a small area. It is suitable for direct application at construction sites, reducing energy consumption and processing delays during waste transportation.

[0005] In order to solve the problems of the prior art, the present invention provides a waste treatment device for a construction site, comprising a treatment bin, wherein a first crushing mechanism and a second crushing mechanism are arranged in the treatment bin; the first crushing mechanism comprises a material rack, a transmission frame and a driving assembly; the material rack is rotatably arranged at the top of the treatment bin, and the material rack can bear the waste and slide along the axis direction of the treatment bin under the action of gravity; a plurality of cutter heads equidistantly surrounding the axis of the material rack are arranged on the peripheral side of the material rack, and the cutter heads are used to preliminarily crush the waste entering the treatment bin; the transmission frame is fixedly connected to the bottom of the material rack, and the transmission frame is a conical frame structure; the driving assembly is rotatably arranged in the treatment bin, and the driving assembly is located below the material rack, and a plurality of transmission shafts that can be extended and retracted along the radial direction thereof are arranged on the driving assembly, and the transmission shafts are all slidably matched with the outer edge of the transmission frame; through the extension and retraction of the transmission shaft and the matching of the transmission frame, the transmission relationship between the driving assembly and the material rack can be adaptively adjusted according to the sliding state of the material rack; the second crushing mechanism is located at the bottom of the treatment bin, and is used to further refine and crush the waste after the preliminarily treatment by the first crushing mechanism, so as to ensure that the waste is fully crushed.

[0006] Preferably, the diameter of the top of the transmission frame is smaller than the diameter of the bottom thereof, and the transmission frame is provided with a plurality of first slide rails that can extend along the outer edge direction thereof, the number of the first slide rails is the same as the number of the transmission shafts and corresponds one to one, and a first pulley is provided at one end of the transmission shaft close to the transmission frame, and the first pulley can be slidably set on the first slide rail.

[0007] Preferably, a support rod with a hollow inner wall is provided in the center of the transmission frame, the axis of the support rod is coaxially arranged with the axis of the material frame, a plurality of second slide rails are provided on the support rod, the number of the second slide rails is the same as the number of the transmission shafts and corresponds one to one, the second slide rails extend along the axial direction of the support rod, a support shaft slidably matched with the second slide rail is provided on the second slide rail, and one end of the transmission shaft close to the transmission frame is sleeved on the support shaft.

[0008] Preferably, the driving assembly includes a fixed ring and a driving ring, the driving ring is rotatably arranged on the fixed ring, a plurality of support arms extending radially along the processing chamber are arranged on the fixed ring, the support arms are fixedly connected to the inner wall of the processing chamber, a rotatable driving shaft is arranged in one of the support arms, a bevel gear is arranged at one end of the driving shaft close to the driving ring, a bevel gear ring is sleeved on the driving ring, and the bevel gear ring is meshingly connected with the bevel gear.

[0009] Preferably, the second crushing mechanism includes two crushing rollers placed in a horizontal state, and each of the two crushing rollers is provided with a plurality of crushing discs equidistantly distributed along the axial direction of the crushing roller, the crushing discs on the two crushing rollers are staggered with each other, and each end of the two crushing rollers is provided with a first gear, the two first gears are meshingly connected, and a synchronous belt is provided between the drive shaft and the end of one of the crushing rollers.

[0010] Preferably, the processing chamber is divided into a pre-processing part and a secondary processing part along the height direction, the pre-processing part is a cylindrical structure, the secondary processing part is a rectangular box structure, and the second crushing mechanism is located in the secondary processing part.

[0011] Preferably, a funnel-shaped guide plate is provided on the top of the secondary processing section, and a discharge port is provided in the center of the guide plate.

[0012] Preferably, the bottom of the material rack has a bottom plate with a conical structure, and the transmission frame is fixedly connected below the bottom plate.

[0013] Preferably, a retractable first stop cover is arranged between the top of the material rack and the top inner wall of the processing bin, and a first elastic member is arranged on the outside of the first stop cover, and both ends of the first elastic member are respectively fixedly connected to the top of the material rack and the top inner wall of the processing bin.

[0014] Preferably, a retractable second gear cover is provided between the bottom of the material rack and the top of the driving assembly and between the bottom of the driving assembly and the bottom of the transmission frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention drives the transmission frame to slide axially through the material frame, so that the transmission ratio between the outer edge of the transmission frame and the driving assembly can be automatically adjusted according to the weight of the waste. When the waste is heavy, the rotation speed of the material frame is increased to enhance the crushing ability; when the waste is light, the rotation speed of the material frame is reduced to ensure the stability of the crushing effect, thereby achieving efficient treatment of the waste. The material frame uses centrifugal force to push the waste to the peripheral cutter head to complete the initial crushing, and the structure is simple and efficient. Especially for brittle materials such as bricks and concrete, it can effectively reduce the size of the waste, provide convenience for subsequent processing, and reduce overall energy consumption.

[0017] 2. The present invention realizes automatic speed regulation of the material rack by slidingly cooperating the transmission shaft with the transmission rack and utilizing the radial expansion and contraction of the transmission shaft, without the need for complex electronic control, with high structural reliability and easy maintenance. The first crushing mechanism and the second crushing mechanism are completed in the same processing bin, with a compact structure and a small footprint, which is suitable for direct application at construction sites, reducing energy consumption and processing delays during waste transportation.

[0018] 3. The present invention enables the drive assembly to flexibly respond to the position change caused by the sliding of the material rack through the first slide rail. Through the automatic adjustment of the transmission ratio, the equipment can adapt to waste materials with large changes in weight and volume, meet the power requirements of different waste materials during the pretreatment process, and improve the applicability and processing efficiency of the equipment. The second slide rail guides the support shaft to achieve corresponding sliding, which plays an additional role in limiting and supporting the transmission shaft. This connection method effectively disperses the radial force borne by the transmission shaft and reduces the dynamic stress caused by the sliding of the material rack. It reduces the risk of excessive local force during equipment operation and extends the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention is a three-dimensional structural schematic diagram of waste treatment equipment used in construction sites.

[0020] Figure 2 The invention is a schematic diagram of the cross-sectional structure of waste treatment equipment used in construction sites.

[0021] Figure 3 The invention is a schematic diagram of the cross-sectional structure of a pre-treatment part of waste treatment equipment used in a construction site.

[0022] Figure 4 The present invention is a schematic diagram of the three-dimensional structure inside a treatment bin of waste treatment equipment used at a construction site.

[0023] Figure 5 The invention is a three-dimensional cross-sectional structural diagram of a pre-treatment part of waste treatment equipment used in construction sites.

[0024] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0025] Figure 7 The present invention is a three-dimensional structural schematic diagram of a first crushing mechanism in waste material processing equipment used in construction sites.

[0026] Figure 8 The present invention is a partial three-dimensional structural schematic diagram of a transmission frame and a driving assembly in a waste material processing device used at a construction site.

[0027] Fig. 9 A top view of the transmission frame and drive components of a waste handling machine used at a construction site.

[0028] Fig.10 An exploded view of a transmission frame and transmission shaft in a waste handling device used at a construction site.

[0029] The numbers in the figure are:

[0030] 1. Processing bin; 11. Pre-processing unit; 12. Secondary processing unit; 121. Guide plate; 122. Discharge port; 2. First crushing mechanism; 21. Material rack; 211. Transmission rack; 2111. First slide rail; 2112. Support rod; 21121. Second slide rail; 21122. Support shaft; 212. Bottom plate; 213. First gear cover; 214. First elastic member; 215. Second gear cover; 22. Driving assembly; 221. Transmission shaft; 2211. First pulley; 222. Fixed ring; 2221. Drive ring; 2222. Bevel gear ring; 2223. Support arm; 22231. Drive shaft; 22232. Bevel gear; 3. Second crushing mechanism; 31. Crushing roller; 311. Crushing disk; 312. First gear; 313. Synchronous belt; 32. Rotary drive motor. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figures 1 to 5 As shown: A waste treatment equipment for construction sites, including a treatment bin 1, in which a first crushing mechanism 2 and a second crushing mechanism 3 are arranged; the first crushing mechanism 2 includes a material rack 21, a transmission frame 211 and a driving assembly 22; the material rack 21 is rotatably arranged on the top of the treatment bin 1, and the material rack 21 can receive waste and slide along the axis direction of the treatment bin 1 under the action of gravity; a plurality of cutter heads equidistantly surrounding the axis of the material rack 21 are arranged on the peripheral side of the material rack 21, and the cutter heads are used to perform preliminary crushing on the waste entering the treatment bin 1; the transmission frame 211 is fixedly connected to the bottom of the material rack 21, and the transmission frame 211 is a conical frame body Structure: The driving component 22 is rotatably arranged in the processing bin 1, and the driving component 22 is located below the material rack 21. The driving component 22 is provided with a plurality of transmission shafts 221 which can be extended and retracted along its radial direction, and the transmission shafts 221 are all slidably matched with the outer edge of the transmission rack 211; through the extension and retraction of the transmission shafts 221 and the cooperation with the transmission rack 211, the transmission relationship between the driving component 22 and the material rack 21 can be adaptively adjusted according to the sliding state of the material rack 21; the second crushing mechanism 3 is located at the bottom of the processing bin 1, and is used for further refining and crushing the waste after the preliminary treatment by the first crushing mechanism 2, to ensure that the waste is fully crushed.

[0033] First, the construction waste is put into the processing bin 1 by means of a conveyor belt or manually. After the waste enters from the top of the processing bin 1, it is received by the rack 21. The rack 21 rotates under the action of the drive assembly 22. At the same time, since the waste is mainly brittle materials such as bricks and concrete, there is usually a large difference in its volume and weight when it is put in. After the weight of the waste is received by the rack 21, the rack 21 slides along the axis of the processing bin 1 under the action of gravity (it should be noted that when the weight of the waste is reduced, the rack 21 can be automatically reset, and the rack 21 is elastically connected to the processing bin 1), thereby driving the transmission frame 211 at the bottom thereof to move synchronously along the axis of the processing bin 1.

[0034] The waste on the rack 21 will move to the circumference under the action of centrifugal force, and contact with multiple blades evenly distributed on the circumference of the rack 21, thereby completing the preliminary crushing of the waste (there is a gap between the rack 21 and the inner wall of the processing bin 1, and after being crushed, it can fall along the gap and move to the second crushing mechanism 3). Since the transmission frame 211 at the bottom of the rack 21 is a conical structure, and the outer edge of the transmission frame 211 is in sliding fit with the transmission shaft 221 of the drive assembly 22. The drive assembly 22 is located below the rack 21 and fixed in the processing bin 1. Through the radial expansion and contraction of the transmission shaft 221, the outer edge of the transmission frame 211 maintains a continuous sliding fit with the transmission shaft 221. As the sliding position of the rack 21 changes, the diameter of its outer edge changes with the height position. In order to ensure the stability of this contact fit, the transmission shaft 221 will automatically extend and retract according to the diameter change of the transmission frame 211: when the transmission shaft 221 contacts the smaller diameter part of the transmission frame 211, the transmission ratio will decrease, and the rotation speed of the transmission frame 211 will increase, thereby increasing the rotation speed of the material rack 21; conversely, when the transmission shaft 221 contacts the larger diameter part of the transmission frame 211, the transmission ratio will increase, and the rotation speed of the transmission frame 211 will decrease, thereby slowing down the rotation speed of the material rack 21.

[0035] The waste material after the preliminary treatment by the first pulverizing mechanism 2 will further fall into the second pulverizing mechanism 3 at the bottom of the processing bin 1. The second pulverizing mechanism 3 finely pulverizes the waste material to ensure that the waste material is fully processed to a particle size suitable for recycling or reuse; the particle fineness of the waste material reaches the standard that can be directly recycled or reused, and the efficiency of waste resource utilization is improved, which meets the industry needs of energy conservation and environmental protection.

[0036] The present invention drives the transmission frame 211 to slide axially by the material frame 21, so that the transmission ratio between the outer edge of the transmission frame 211 and the driving assembly 22 can be automatically adjusted according to the weight of the waste. When the waste is heavy, the rotation speed of the material frame 21 is increased to enhance the crushing ability; when the waste is light, the rotation speed of the material frame 21 is reduced to ensure the stability of the crushing effect, thereby achieving efficient treatment of the waste. The material frame 21 uses centrifugal force to push the waste to the peripheral cutter head to complete the initial crushing, and the structure is simple and efficient. Especially for brittle materials such as bricks and concrete, it can effectively reduce the size of the waste, provide convenience for subsequent processing, and reduce overall energy consumption.

[0037] The transmission shaft 221 is slidably matched with the transmission frame 211, and the radial expansion and contraction of the transmission shaft 221 is used to realize the automatic speed regulation of the material frame 21, without the need for complex electronic control, with high structural reliability and easy maintenance. The first crushing mechanism 2 and the second crushing mechanism 3 are completed in the same processing bin 1, and the equipment has a compact structure and a small footprint, which is suitable for direct application at the construction site, reducing energy consumption and processing delays during waste transportation.

[0038] like Figures 2 to 6 , Figures 8 to 10 As shown: the diameter of the top of the transmission frame 211 is smaller than the diameter of the bottom thereof, and the transmission frame 211 is provided with a plurality of first slide rails 2111 that can extend along the outer edge direction thereof, and the number of the first slide rails 2111 is the same as the number of the transmission shafts 221 and corresponds one to one, and a first pulley 2211 is provided at one end of the transmission shaft 221 close to the transmission frame 211, and the first pulley 2211 can be slidably set on the first slide rail 2111.

[0039] Because the top diameter of the transmission frame 211 is smaller than the bottom diameter, when the transmission frame 211 moves down to the top with a smaller diameter, the transmission ratio decreases and the rotation speed of the material frame 21 increases, thereby efficiently processing heavy-load waste; when the transmission frame 211 moves up to the bottom with a larger diameter, the transmission ratio increases and the rotation speed of the material frame 21 decreases, thereby avoiding excessive loss of light-load waste due to high-speed rotation and ensuring stable crushing of the waste.

[0040] When the transmission frame 211 changes with the sliding position of the material frame 21, the first pulley 2211 will slide on the first slide rail 2111, automatically adjusting the contact position, thereby changing the transmission ratio, and realizing the dynamic adjustment of the transmission relationship between the driving component 22 and the transmission frame 211. No additional complex control mechanism is required, the equipment structure is simplified, and the operation reliability is improved.

[0041] The first slide rail 2111 is tilted along the outer edge of the transmission frame 211, which can effectively disperse the axial force and radial force during the transmission process, avoid wear and vibration caused by single-point force, and improve the stability of equipment operation and service life.

[0042] This enables the drive assembly 22 to flexibly respond to the position change caused by the sliding of the material rack 21. Through the automatic adjustment of the transmission ratio, the equipment can adapt to waste materials with large weight and volume changes, meet the power requirements of different waste materials during the pretreatment process, and improve the applicability and processing efficiency of the equipment.

[0043] like Figures 5 to 10 As shown: a support rod 2112 with a hollow inner wall is arranged in the center of the transmission frame 211, the axis of the support rod 2112 is coaxially arranged with the axis of the material frame 21, a plurality of second slide rails 21121 are arranged on the support rod 2112, and the number of the second slide rails 21121 is the same as the number of the transmission shaft 221 and corresponds one to one, the second slide rail 21121 extends along the axial direction of the support rod 2112, and a support shaft 21122 slidably matched therewith is arranged on the second slide rail 21121, and one end of the transmission shaft 221 close to the transmission frame 211 is sleeved on the support shaft 21122.

[0044] The hollow structure of the support rod 2112 is coaxially arranged with the axis of the rack 21, and its main function is to provide additional support and guidance for the transmission shaft 221. The second slide rail 21121 extends along the axis of the support rod 2112 and slides with the support shaft 21122, so that the support shaft 21122 can slide up and down along the second slide rail 21121.

[0045] When the material rack 21 slides along the axis of the processing chamber 1 due to the change in the weight of the waste, since the end of the transmission shaft 221 is sleeved on the support shaft 21122, the second slide rail 21121 on the support rod 2112 can guide the support shaft 21122 to achieve corresponding sliding, ensuring that the sliding fit between the transmission shaft 221 and the transmission rack 211 is always stable. Through the sliding of the support shaft 21122, the radial movement of the transmission shaft 221 can be additionally restricted and supported. This connection method effectively disperses the radial force borne by the transmission shaft 221 and reduces the dynamic stress caused by the sliding of the material rack 21.

[0046] The support rod 2112 and the support shaft 21122 form a reliable guiding system, and the overall stability can still be guaranteed even when the sliding range of the material rack 21 is large or the weight of the waste material changes significantly.

[0047] Through the synergistic effect of the first slide rail 2111 and the second slide rail 21121, the sliding and rotation of the rack 21 always remain smooth, avoiding system instability or jamming caused by uneven force transmission. The risk of excessive local force during equipment operation is effectively reduced, and the service life of the equipment is extended. The stable force structure reduces the vibration amplitude of the equipment, thereby reducing the wear of the equipment during operation, especially under long-term operation or high load conditions.

[0048] like Figures 3 to 9As shown: the driving assembly 22 includes a fixed ring 222 and a driving ring 2221, the driving ring 2221 is rotatably arranged on the fixed ring 222, a plurality of support arms 2223 extending radially along the processing chamber 1 are arranged on the fixed ring 222, the support arms 2223 are fixedly connected to the inner wall of the processing chamber 1, a rotatable driving shaft 22231 is arranged in one of the support arms 2223, a bevel gear 22232 is arranged on the end of the driving shaft 22231 close to the driving ring 2221, a bevel gear ring 2222 is sleeved on the driving ring 2221, and the bevel gear ring 2222 is meshingly connected with the bevel gear 22232.

[0049] The fixing ring 222 is fixedly connected to the inner wall of the processing chamber 1 through a plurality of radially extending support arms 2223 . The support arms 2223 serve to fix and support the driving assembly 22 , thereby ensuring the stable position of the driving ring 2221 and the driving shaft 22231 in the processing chamber 1 .

[0050] The support arms 2223 are not only used as fixed supports, but also as mounting carriers for the drive shaft 22231, so that the drive shaft 22231 can be set in one of the support arms 2223, and the drive shaft 22231 can rotate around its axis. The drive ring 2221 is rotatably set on the fixed ring 222 through the central axis, and the drive ring 2221 is a key component for realizing the rotation of the transmission frame 211.

[0051] The outer edge of the driving ring 2221 is sleeved with a bevel gear ring 2222, which is meshed with the bevel gear 22232 on the driving shaft 22231. Through this meshing mode, the rotational motion of the driving shaft 22231 can be transmitted to the driving ring 2221, thereby driving the driving ring 2221 to rotate. When the driving shaft 22231 rotates, the bevel gear 22232 drives the bevel gear ring 2222 to rotate, and then drives the driving ring 2221 to rotate accordingly, thereby realizing the transmission of power from the driving shaft 22231 to the driving ring 2221. Through precise meshing, high efficiency, low noise and stable transmission are guaranteed during the power transmission process. The driving shaft 22231 is driven to rotate by an external power source such as a motor.

[0052] Through the meshing of the bevel gear 22232 and the bevel gear ring 2222, the power transmission direction can be flexibly adjusted, avoiding the strict requirements of the space layout in the traditional coaxial transmission method, making the equipment design more flexible and compact. The meshing accuracy between the bevel gear 22232 and the bevel gear ring 2222 is high, and the contact surface is evenly distributed, which can disperse the stress generated during the transmission process, reduce local wear and vibration problems, and thus extend the service life of the drive assembly 22. When the drive shaft 22231 transmits power, the support arm 2223 and the bevel gear transmission system effectively suppress vibration and torque fluctuations, making the drive ring 2221 rotate more smoothly, ensuring the smooth operation of downstream equipment.

[0053] The various parts of the driving assembly 22 (such as the fixing ring 222, the support arm 2223, and the driving shaft 22231) have distinct structures and are easy to disassemble and maintain. At the same time, the bevel gear transmission system is easy to lubricate, which can reduce the complexity and cost of equipment maintenance.

[0054] like Figures 1 to 5 As shown: the second pulverizing mechanism 3 includes two pulverizing rollers 31 placed in a horizontal state, and the two pulverizing rollers 31 are each provided with a plurality of pulverizing discs 311 equidistantly distributed along the axial direction of the pulverizing rollers 31, the pulverizing discs 311 on the two pulverizing rollers 31 are staggered with each other, and the ends of the two pulverizing rollers 31 are each provided with a first gear 312, and the two first gears 312 are meshed and connected, and a synchronous belt 313 is provided between the drive shaft 22231 and the end of one of the pulverizing rollers 31.

[0055] The second pulverizing mechanism 3 is powered by a rotary drive motor 32 disposed on the pulverizing roller 31. When the rotary drive motor 32 is started, one of the pulverizing rollers 31 is driven to rotate around its axis. Since the two pulverizing rollers 31 are meshed and connected through the first gear 312, when one pulverizing roller 31 rotates, the other pulverizing roller 31 will rotate in a synchronous opposite direction, thereby forming a reverse motion mode of shearing and extrusion.

[0056] The surfaces of the two crushing rollers 31 are provided with a plurality of annular crushing discs 311, which are arranged in a staggered manner on the crushing rollers 31. After the waste enters the second crushing mechanism 3, it is clamped between the two relatively rotating crushing rollers 31. As the crushing rollers 31 rotate in opposite directions, the waste is subjected to strong shearing, squeezing and impact between the crushing rollers 31. Since the crushing discs 311 are arranged in a staggered manner, the waste will contact the crushing discs 311 multiple times during the movement, and will be cut and crushed from multiple angles and directions, which greatly improves the crushing efficiency.

[0057] The fully processed waste particles will be discharged through the discharge port at the bottom of the processing bin 1, and the waste will be further refined and crushed to reach the size requirements suitable for subsequent recycling or disposal. The size of the fully crushed waste particles is suitable for subsequent processing, which helps to improve the recycling rate of waste, reduce waste, and meet the dual needs of environmental protection and economic benefits.

[0058] The setting of the first gear 312 ensures the synchronous reverse rotation of the two crushing rollers 31, avoids the problems of jamming, sliding or eccentric wear caused by speed difference, and ensures the smoothness and reliability of the crushing process. At the same time, during the rotation of the crushing roller 31, the driving shaft 22231 connected to it is driven to rotate through the synchronous belt 313, and the rotation of the driving shaft 22231 drives the rotation of the transmission frame 211 and the material frame 21, so that the first crushing mechanism 2 can be driven, so that the second crushing mechanism 3 can not only complete the efficient waste crushing, but also cooperate to drive the operation of the first crushing mechanism 2, optimizing the overall working efficiency of the equipment.

[0059] like Figures 1 to 5 As shown: the processing chamber 1 is divided into a pre-processing part 11 and a secondary processing part 12 along the height direction. The pre-processing part 11 is a cylindrical structure, the secondary processing part 12 is a rectangular box structure, and the second crushing mechanism 3 is located in the secondary processing part 12.

[0060] The cylindrical structure of the pre-treatment section 11 allows the waste to be more evenly distributed during the initial crushing process, thereby avoiding concentrated accumulation of the waste and facilitating the waste particles to smoothly enter the secondary treatment section 12 .

[0061] The rectangular box structure of the secondary treatment part 12 can accommodate the second crushing mechanism 3 and the crushed waste particles, ensuring that the waste can be thoroughly refined and processed, reducing the risk of blockage and stagnation, and can be discharged smoothly through the discharge port. The pretreatment part 11 and the secondary treatment part 12 have clear division of labor. The pretreatment part 11 is responsible for the initial crushing of the waste to reduce the volume of the waste; the secondary treatment part 12 is responsible for the fine crushing of the waste to ensure the treatment effect. The synergistic effect of the two parts significantly improves the efficiency of waste treatment. The internal space of the equipment is effectively utilized to ensure that the function of each part is fully utilized, while simplifying the flow process of waste from pretreatment to secondary treatment.

[0062] The segmented structure facilitates independent maintenance and repair of each part, and also facilitates upgrading or adjusting the equipment as needed, thereby increasing the service life and operational stability of the equipment. The segmented arrangement of the pre-treatment section 11 and the secondary treatment section 12 makes the equipment suitable for both the initial treatment scenario with a large amount of waste and the reuse scenario with fine treatment of waste, thereby enhancing the application scope of the equipment.

[0063] like Figures 1 to 3 and Figure 5 As shown, a funnel-shaped guide plate 121 is disposed on the top of the secondary processing part 12 , and a discharge port 122 is disposed in the center of the guide plate 121 .

[0064] After the waste is initially crushed by the pre-processing part 11, the waste particles fall from the bottom of the pre-processing part 11 and first contact the guide plate 121. The guide plate 121 uses its inclined surface structure to guide the waste particles into the central area of ​​the secondary processing part 12, so that the waste can be evenly distributed within the working range of the second crushing mechanism 3 to ensure the crushing efficiency.

[0065] The funnel-shaped structure of the guide plate 121 can concentrate the flow direction of the waste materials, so that the waste materials can enter the secondary processing part 12 from the discharge port 122 , thereby preventing the waste materials from being scattered or stuck when falling from the pre-processing part 11 into the secondary processing part 12 .

[0066] The funnel-shaped guide plate 121 can also slow down the speed of waste falling from a height, prevent the waste from directly impacting the crushing roller 31 of the secondary processing part 12, reduce the risk of equipment wear, and allow the waste to enter the second crushing mechanism 3 more smoothly, facilitating the crushing roller 31 to fully process the waste.

[0067] like Figures 2 to 7 As shown, the bottom of the material rack 21 has a bottom plate 212 with a conical structure, and the transmission frame 211 is fixedly connected to the bottom of the bottom plate 212.

[0068] The conical bottom plate 212 can effectively disperse the weight of the construction waste, making the rack 21 more stable during use, reducing the tilting or tipping caused by unbalanced load, and improving the safety and stability of the equipment. At the same time, it prevents the waste carried by the rack 21 from accumulating on the rack 21, and plays a certain guiding role for the waste.

[0069] like Figures 2 to 5 As shown: a retractable first stop cover 213 is arranged between the top of the material rack 21 and the top inner wall of the processing chamber 1, and a first elastic member 214 is arranged on the outside of the first stop cover 213, and the two ends of the first elastic member 214 are fixedly connected to the top of the material rack 21 and the top inner wall of the processing chamber 1 respectively.

[0070] Since the material rack 21 can slide along the axial direction of the processing bin 1, the retractable first stop cover 213 can effectively prevent the waste from leaking from the side of the material rack 21 during the processing process, ensuring the complete collection of the waste. At the same time, the processing space at the top of the processing bin 1 can be adjusted according to the weight of the waste to prevent the waste from overflowing or scattering during the processing process.

[0071] By setting the first elastic member 214, the material rack 21 can maintain elastic connection with the processing bin 1, so that the waste can be reset when the weight is reduced. The above method is only one of the installation methods of the material rack 21. A slide groove can also be set in the processing bin 1, and the material rack 21 can be set in the slide groove.

[0072] like Figures 2 to 5As shown, a retractable second gear cover 215 is provided between the bottom of the material rack 21 and the top of the driving assembly 22 and between the bottom of the driving assembly 22 and the bottom of the transmission frame 211 .

[0073] The provision of the retractable second gear cover 215 can prevent waste from falling onto the transmission frame 211 during its movement toward the bottom of the processing chamber 1, thereby preventing waste from damaging the transmission frame 211 and the drive assembly 22, thereby extending the service life of the equipment.

[0074] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A waste treatment device for a construction site, comprising a treatment chamber (1), characterized in that: A first crushing mechanism (2) and a second crushing mechanism (3) are arranged in the processing chamber (1); The first pulverizing mechanism (2) comprises a material frame (21), a transmission frame (211) and a driving assembly (22); The material rack (21) is rotatably arranged on the top of the processing bin (1), and the material rack (21) can receive the waste and slide along the axial direction of the processing bin (1) under the action of gravity; A plurality of cutter heads are arranged on the peripheral side of the material rack (21) and are equidistantly arranged around the axis thereof, and the cutter heads are used to initially crush the waste materials entering the processing bin (1); The transmission frame (211) is fixedly connected to the bottom of the material frame (21), and the transmission frame (211) is a conical frame structure; The driving assembly (22) is rotatably arranged in the processing bin (1), and the driving assembly (22) is located below the material rack (21). The driving assembly (22) is provided with a plurality of transmission shafts (221) which can be extended and retracted along the radial direction thereof, and the transmission shafts (221) are all slidably matched with the outer edge of the transmission rack (211); Through the expansion and contraction of the transmission shaft (221) and the cooperation with the transmission frame (211), the transmission relationship between the driving component (22) and the material frame (21) can be adaptively adjusted according to the sliding state of the material frame (21); The second pulverizing mechanism (3) is located at the bottom of the processing bin (1) and is used to further refine and pulverize the waste material that has been preliminarily processed by the first pulverizing mechanism (2) to ensure that the waste material is fully pulverized.

2. A waste treatment equipment for construction sites according to claim 1, characterized in that: The diameter of the top of the transmission frame (211) is smaller than the diameter of the bottom thereof. The transmission frame (211) is provided with a plurality of first slide rails (2111) that can extend along the outer edge direction thereof. The number of the first slide rails (2111) is the same as the number of the transmission shafts (221) and corresponds one to one. A first pulley (2211) is provided at one end of the transmission shaft (221) close to the transmission frame (211), and the first pulley (2211) can be slidably arranged on the first slide rail (2111).

3. A waste treatment equipment for construction sites according to claim 2, characterized in that: A support rod (2112) with a hollow inner wall is arranged in the center of the transmission frame (211), the axis of the support rod (2112) is coaxially arranged with the axis of the material frame (21), a plurality of second slide rails (21121) are arranged on the support rod (2112), and the number of the second slide rails (21121) is the same as the number of the transmission shaft (221) and corresponds one to one, the second slide rails (21121) extend along the axis direction of the support rod (2112), the second slide rail (21121) is provided with a support shaft (21122) slidably matched therewith, and one end of the transmission shaft (221) close to the transmission frame (211) is sleeved on the support shaft (21122).

4. The waste treatment equipment for construction sites according to claim 1, characterized in that: The driving assembly (22) comprises a fixing ring (222) and a driving ring (2221); the driving ring (2221) is rotatably arranged on the fixing ring (222); a plurality of supporting arms (2223) extending radially along the processing chamber (1) are arranged on the fixing ring (222); the supporting arms (2223) are fixedly connected to the inner wall of the processing chamber (1); a rotatable driving shaft (22231) is arranged in one of the supporting arms (2223); a bevel gear (22232) is arranged at one end of the driving shaft (22231) close to the driving ring (2221); a bevel gear ring (2222) is sleeved on the driving ring (2221); the bevel gear ring (2222) is meshingly connected with the bevel gear (22232).

5. The waste treatment equipment for construction sites according to claim 4, characterized in that: The second pulverizing mechanism (3) comprises two pulverizing rollers (31) placed in a horizontal state, each of the two pulverizing rollers (31) being provided with a plurality of pulverizing discs (311) equidistantly distributed along the axis direction of the pulverizing rollers (31), the pulverizing discs (311) on the two pulverizing rollers (31) being arranged in an interlaced manner, each of the ends of the two pulverizing rollers (31) being provided with a first gear (312), the two first gears (312) being meshedly connected, and a synchronous belt (313) being provided between a driving shaft (22231) and the end of one of the pulverizing rollers (31).

6. The waste treatment equipment for construction sites according to claim 5, characterized in that: The processing chamber (1) is divided into a pre-processing section (11) and a secondary processing section (12) along the height direction. The pre-processing section (11) is a cylindrical structure, and the secondary processing section (12) is a rectangular box structure. The second crushing mechanism (3) is located in the secondary processing section (12).

7. The waste treatment equipment for construction sites according to claim 6, characterized in that: A funnel-shaped guide plate (121) is arranged at the top of the secondary processing section (12), and a discharge port (122) is arranged at the center of the guide plate (121).

8. The waste treatment equipment for construction sites according to claim 1, characterized in that: The bottom of the material rack (21) is provided with a bottom plate (212) with a conical structure, and the transmission frame (211) is fixedly connected below the bottom plate (212).

9. The waste treatment equipment for construction sites according to claim 1, characterized in that: A retractable first stop cover (213) is arranged between the top of the material rack (21) and the top inner wall of the processing chamber (1), and a first elastic member (214) is arranged outside the first stop cover (213), and two ends of the first elastic member (214) are respectively fixedly connected to the top of the material rack (21) and the top inner wall of the processing chamber (1).

10. The waste treatment equipment for construction sites according to claim 1, characterized in that: A retractable second gear cover (215) is provided between the bottom of the material rack (21) and the top of the driving assembly (22) and between the bottom of the driving assembly (22) and the bottom of the transmission frame.

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