Mobile regenerated sand powder production and disposal equipment

Abstract

The invention relates to movable regenerated sand powder production and disposal equipment which comprises a movable vehicle frame, a crushing module used for crushing materials is arranged over the movable vehicle frame, a feeding module used for feeding the crushing module is arranged on one side of the crushing module, and the bottom of the feeding module is connected with the movable vehicle frame; a screening module used for screening crushed materials is arranged on the other side of the crushing module, a conveying module used for conveying the crushed materials is arranged at the bottom of the crushing module, the end, away from the crushing module, of the conveying module is located above the screening module, and a backflow module used for material backflow is arranged at the bottom of the screening module. All core modules are integrated on the movable frame, the overall mobility of the production line is achieved, meanwhile, efficient, automatic and continuous field production is achieved through the matched design of feeding, crushing, conveying, screening and backflow, and the flexibility, efficiency and environmental friendliness of resource recycling are remarkably improved.

Description

Technical Field

[0001] The present application relates to the technical field of construction waste recycling and reuse, and in particular to a mobile regenerated sand powder production and disposal device. Background Art

[0002] With the acceleration of urbanization, the amount of construction waste generated has increased year by year. Traditional landfill or stacking methods not only occupy land resources but also cause environmental pollution. In recent years, the resource utilization of construction waste has become a research hotspot, especially the rapid development of recycling technology for waste concrete and bricks. Through crushing and screening processes, construction waste can be converted into recycled aggregate or sand powder, which can replace natural sand and gravel in building materials production, reducing both resource consumption and environmental impact. Currently, a variety of fixed construction waste treatment production lines have been developed both domestically and internationally, but research on mobile disposal equipment is still in its infancy.

[0003] There are two main solutions for treating construction waste in the existing technology: one is a fixed crushing and screening production line, which requires the waste to be transported to a fixed site for centralized treatment. Its advantages are strong processing capacity and mature technology, but its disadvantages are high transportation costs and inability to achieve on-site treatment; the other is simple mobile crushing equipment, which usually only includes a single crushing function and lacks a complete screening and reflux system, resulting in unstable quality of recycled materials.

[0004] Regarding the above-mentioned technologies, since fixed production lines cannot meet the immediate processing needs of dispersed construction waste, the transportation link increases costs and carbon emissions. At the same time, the existing mobile equipment has a single function and only has a crushing function. It lacks a complete screening and reflux system, resulting in unstable quality of recycled materials, thereby causing low resource utilization. Summary of the Invention

[0005] In order to solve the problem that fixed production lines cannot meet the immediate processing needs of dispersed construction waste, the transportation link increases costs and carbon emissions, and the existing mobile equipment has a single function, only has a crushing function, and lacks a complete screening and reflux system, resulting in unstable quality of recycled materials and low resource utilization, this application provides a mobile recycled sand powder production and disposal equipment.

[0006] The present application provides a mobile regenerated sand powder production and disposal equipment, which adopts the following technical solutions: Mobile regenerated sand powder production and disposal equipment includes a mobile frame, a crushing module for material crushing is arranged directly above the mobile frame, a feeding module for feeding the crushing module is arranged on one side of the crushing module, and the bottom of the feeding module is connected to the mobile frame, a screening module for crushed material screening is arranged on the other side of the crushing module, a conveying module for crushed material conveying is arranged at the bottom of the crushing module, the end of the conveying module away from the crushing module is located above the screening module, and a reflux module for material reflux is arranged at the bottom of the screening module, and the end of the reflux module away from the screening module is located above the feeding module.

[0007] By adopting the above technical solution, all core modules (crushing, feeding, screening, conveying, and reflux) are integrated on the mobile frame, thus achieving the overall mobility of the production line, reducing material transportation costs, and improving operational flexibility. A reflux module is set up to transport materials that do not meet the requirements after screening (such as coarse particles) back to the feeding module, and re-enter the crushing link, forming a closed-loop process of "crushing-screening-reflux-re-crushing", avoiding the waste of unqualified materials and improving the yield of recycled sand powder. At the same time, through the coordinated design of the feeding module, crushing module, conveying module, screening module and reflux module, efficient, automated and continuous on-site production is achieved, which significantly improves the flexibility, efficiency and environmental protection of resource reuse.

[0008] Preferably, the crushing module includes a double-roll crushing device and a double-roll crushing feed hopper, the bottom of the double-roll crushing feed hopper is connected to the top of the double-roll crushing device, and the bottom of the double-roll crushing device is connected to the mobile frame through bolts.

[0009] By adopting the above technical solution, the roller crushing feed hopper serves as a material buffer and diversion device, which can evenly and continuously guide the material transported by the feeding module into the roller crushing equipment, avoiding equipment overload or blockage caused by instantaneous accumulation of materials. At the same time, the roller crushing equipment squeezes and grinds the material through two relatively rotating rollers. The crushing process is gentle and the force is uniform, which can effectively control the particle size of the crushed material and reduce over-crushing.

[0010] Preferably, the roller crushing equipment includes a main frame 1, a main shaft 1, a half bearing seat 1, a feed hopper, a hydraulic mechanism, a rotating pin shaft, a half bearing seat 2, a main shaft 2, a main frame 2, an adjusting gap assembly, a grinding roller 1, a main shaft 3, a grinding roller 2, a main shaft 4, a discharge port and a base, the main frame 1 and the main frame 2 are both welded structures, the main frame 1 and the half bearing seat 1 and the main frame 2 and the half bearing seat 2 are all connected by bolts, the bottom of the main frame 1 and the main frame 2 are connected to the base through a pin shaft, the main shaft 1 and the main shaft 2 are respectively connected to the half bearing seat 1 and the half bearing seat 2, the feed hopper and the discharge port are respectively connected to the half bearing seat 1 and the base, the main frame 1 and the main frame 2 are connected to the rotating pin shaft through a hydraulic mechanism, the grinding roller 1 and the grinding roller 2 are respectively connected to the main shaft 3 and the main shaft 4, the adjusting gap assembly is arranged on the main frame 1 and the main frame 2, and the main frame 2 rotates by the adjusting gap assembly to change the gap between the main shaft 3 and the main shaft 4.

[0011] By adopting the above technical solution, the material enters the roller crushing equipment through the feed hopper for crushing, and the material is crushed under the extrusion of grinding roller one and grinding roller two, and the crushed material is discharged through the discharge port; if the particle size of the crushed material is adjusted, the main frame one and the main frame two can be adjusted by adjusting the hydraulic mechanism, and then the position relationship between the half bearing seat one and the half bearing seat two can be adjusted, so that the main frame two can be rotated by adjusting the gap assembly to change the gap between the two main shafts, and finally the particle size of the crushed material can be changed. At the same time, when processing mixed bricks, stones and concrete blocks, the hydraulic mechanism can first increase the gap between grinding roller one and grinding roller two to crush large pieces of material, and then reduce the gap between roller one and grinding roller two to crush fine pieces of material, so as to avoid equipment overload.

[0012] Preferably, the double-roll crushing feed hopper is installed on the feed hopper of the double-roll crushing equipment through a flange connection.

[0013] By adopting the above technical solution, the flange itself is a rigid structure, which can withstand the impact and vibration of falling materials after being bolted, avoiding displacement or falling off of the roller crushing feed hopper and the feed hopper due to loosening, thereby ensuring the stability of equipment operation.

[0014] Preferably, the feeding module includes a feeding belt conveyor for material transportation, a support rod for supporting the feeding belt conveyor and a hydraulic adjustment device for adjusting the feeding belt conveyor, wherein the feeding belt conveyor is installed on a mobile frame through the hydraulic adjustment device and the support rod, and the feeding belt conveyor is located above the crushing module on the side close to the crushing module.

[0015] By adopting the above technical solution, the feeding belt conveyor can realize stable material transportation through continuous operation, and can continuously transport raw materials (such as construction waste blocks, ore, etc.) to the feed hopper of the crushing module, forming a coherent production process with the crushing module and the screening module, avoiding production line shutdowns due to feeding interruptions, and improving overall production efficiency. At the same time, the inclination angle of the feeding belt conveyor can be flexibly changed through the hydraulic adjustment device, which can not only meet the feeding requirements of different heights (such as adjusting the conveying starting point according to the height of the crushing module feed hopper), but also adapt to the terrain conditions of different sites (such as sites with slight slopes), thereby improving the environmental adaptability of the mobile production line.

[0016] Preferably, the conveying module includes a conveyor belt for conveying crushed materials and a belt conveyor adjustment device for adjusting the conveyor belt. The conveyor belt is fixed and adjusted by a connecting rod and a belt conveyor adjustment device inside the mobile frame. One end of the conveyor belt is located directly below the discharge port of the double-roller crushing equipment, and the other end of the conveyor belt is located above the screening module.

[0017] By adopting the above technical solution, one end of the conveyor belt is directly located below the discharge port of the double-roller crushing equipment, which can promptly receive and transport the crushed material to avoid material accumulation at the bottom of the crushing equipment and blockage, ensuring that the material transfer between the crushing module and the screening module is unobstructed. The other end of the conveyor belt extends to the top of the screening module, which can accurately guide the material into the screening equipment, forming a seamless connection of "crushing → conveying → screening", reducing material spillage and loss, and improving the material utilization and operation efficiency of the entire production line. At the same time, the belt conveyor adjustment device can realize the conveyor belt conveyor to adjust the inclination angle of the belt conveyor according to the output of the crushed material or fine-tune the conveying terminal height according to the feed port position of the screening module, ensuring that the material falls accurately into the screening module.

[0018] Preferably, a roller crushing hopper is provided between the conveyor belt and the roller crushing equipment, the size of the top of the roller crushing hopper is larger than the size of the discharge port of the roller crushing equipment, and the size of the bottom of the roller crushing hopper is smaller than the size of the conveyor belt.

[0019] By adopting the above technical solution, the double-roll crushing hopper is designed with a "large top and small bottom" size to build an efficient, environmentally friendly and protective transition bridge between the crushing module and the conveying module. The top size of the hopper is larger than the discharge port of the double-roll crushing equipment, and can completely cover the discharge port area, ensuring that the crushed material (such as sand powder, fragment mixture) can be effectively received by the hopper when discharged from the discharge port, regardless of the particle size or scattering angle, to avoid the waste of raw materials caused by material splashing and scattering. The bottom size of the hopper is smaller than the width of the conveyor belt, and the received material can be concentrated and guided to the middle area of ​​the conveyor belt to avoid the material being dispersed to the edge of the belt, preventing the belt from deviation and increased wear due to material offset, or secondary cleaning costs caused by spillage from the edge.

[0020] Preferably, the screening module includes a hanging screen device for double-layer screening of crushed materials, a hanging screen adjustment device for adjusting the hanging screen device, a finished product conveyor 1 for conveying materials that have passed the first layer screening but not the second layer screening, and a finished product conveyor 2 for conveying materials that have passed the double-layer screening. The hanging screen device is installed on a mobile frame through the hanging screen adjustment device, the finished product conveyor 2 is connected to the bottom of the hanging screen device by bolts, and the finished product conveyor 1 is located on the ground.

[0021] By adopting the above technical solution, the crushed materials are graded through two layers of screens or screening structures with different apertures on the hanging screen equipment, and the materials can be divided into three categories: coarse materials that do not pass through the first layer of screening are returned for re-crushing, medium-grained materials that pass through the first layer but not the second layer are transported by finished product conveyor 1, and fine-grained materials that pass through double-layer screening are transported by finished product conveyor 2. This grading process can directly produce two finished sand powders with different particle size specifications to meet the usage requirements of different scenarios, enhance product added value and market adaptability, and at the same time, the hanging screen adjustment equipment can optimize the screening conditions of the hanging screen equipment in real time according to the material characteristics or finished product requirements, increase the amplitude and reduce blockage; for scenarios that require rapid screening, the inclination angle of the screen surface can be adjusted to accelerate the flow of materials to ensure screening efficiency and accuracy.

[0022] Preferably, the reflux module includes a hanging screen return chute for materials that have not passed through the first layer of screen on the hanging screen equipment and a reflux conveyor for conveying reflux materials. The hanging screen return chute is connected to the discharge position of the uppermost layer of the hanging screen equipment by bolts, and the reflux conveyor is installed on a mobile frame. The discharge end of the hanging screen return chute is located above the reflux conveyor.

[0023] By adopting the above technical solution, the coarse-grained materials that fail to pass through the first layer of the screen of the hanging screen equipment can be directly sent back to the crushing module for secondary crushing through the hanging screen return chute and the return conveyor, forming a closed-loop process of "crushing → screening → return → re-crushing", avoiding the waste of raw materials caused by direct discard of coarse materials, significantly improving the utilization rate of raw materials, and reducing production costs. At the same time, the hanging screen return chute is connected to the top discharge position of the hanging screen equipment by bolts, and its position directly corresponds to the top of the return conveyor, shortening the path of the material from the hanging screen equipment to the return conveying equipment, and reducing the spillage and residue of the material during the transfer process.

[0024] Preferably, a power box for providing power to the crushing module, screening module, conveying module and feeding module is provided between the crushing module and the screening module, and the bottom of the power box is connected to the mobile frame.

[0025] By adopting the above technical solution, the power box provides power for multiple core modules such as the crushing module, screening module, conveying module, and feeding module, avoiding the need for each module to be equipped with a separate power device, reducing equipment redundancy, and at the same time, centralized energy supply allows the power pipelines of each module to be uniformly led out from the power box, reducing cross-entanglement of pipelines, facilitating sorting and maintenance, and reducing the risk of failure caused by pipeline chaos.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. All core modules (crushing, feeding, screening, conveying, and reflux) are integrated on a mobile frame, achieving overall mobility of the production line, reducing material transportation costs and improving operational flexibility. A reflux module is provided to re-transfer materials that do not meet screening requirements (such as coarse particles) to the feeding module for re-entry into the crushing process, forming a closed-loop process of "crushing, screening, reflux, and then crushing." This avoids the waste of unqualified materials and improves the yield rate of recycled sand powder. At the same time, the coordinated design of the feeding module, crushing module, conveying module, screening module, and reflux module enables efficient, automated, and continuous on-site production, significantly improving the flexibility, efficiency, and environmental friendliness of resource reuse. 2. The double-roll crusher receiving hopper is designed with a "larger top and smaller bottom" size, which builds an efficient, environmentally friendly and protective transition bridge between the crushing module and the conveying module. The top size of the receiving hopper is larger than the discharge port of the double-roll crusher equipment, which can completely cover the discharge port area. This ensures that when the crushed material (such as sand powder, fragment mixture) is discharged from the discharge port, it can be effectively received by the receiving hopper regardless of particle size or scattering angle, thus avoiding the waste of raw materials caused by material splashing and scattering. The bottom size of the receiving hopper is smaller than the width of the conveyor belt, which can guide the received material to the middle area of ​​the conveyor belt to avoid material dispersion to the edge of the belt, thereby preventing belt deviation and increased wear caused by material deviation, and secondary cleaning costs caused by spillage at the edge. 3. The crushed materials are graded by using two layers of screens or screening structures with different apertures on the hanging screen equipment. The materials can be divided into three categories: coarse materials that fail to pass the first layer of screening are returned for re-crushing, medium-sized materials that pass the first layer but fail the second layer are transported by finished product conveyor 1, and fine-grained materials that pass the double-layer screening are transported by finished product conveyor 2. This grading process can directly produce two finished sand powders with different particle sizes to meet the usage requirements of different scenarios, enhance product added value and market adaptability, and at the same time, the hanging screen adjustment device can optimize the screening conditions of the hanging screen equipment in real time according to the material characteristics or finished product requirements, increase the amplitude and reduce blockage; for scenarios that require rapid screening, the screen surface inclination can be adjusted to accelerate material flow to ensure screening efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a main perspective view of the mobile regenerated sand powder production and disposal equipment; Figure 2 It is a left-side perspective view of the mobile regenerated sand powder production and disposal equipment; Figure 3 This is the main view of the mobile regenerated sand powder production and disposal equipment; Figure 4 This is the main view of the coordination between the hanging screen equipment and the finished product conveyor; Figure 5 This is the main view of the roller crushing equipment; Figure 6 It is a cross-sectional view of the roller crushing equipment.

[0028] Figure 100, mobile frame; 200, crushing module; 210, roller crushing equipment; 210-1, main frame 1; 210-2, main shaft 1; 210-3, half bearing seat 1; 210-4, feed hopper; 210-5, hydraulic mechanism; 210-6, rotating pin; 210-7, half bearing seat 2; 210-8, main shaft 2; 210-9, main frame 2; 210-10, gap adjustment assembly; 210-11, grinding roller 1; 210-12, main shaft 3; 210-13, grinding roller 2; 210-14, main shaft 4; 210-15, discharge Mouth; 210-16, base; 220, double-roll crusher feed hopper; 300, feeding module; 310, feeding belt conveyor; 320, support rod; 330, hydraulic adjustment device; 400, screening module; 410, hanging screen equipment; 420, hanging screen adjustment equipment; 430, finished product conveyor 1; 440, finished product conveyor 2; 500, conveying module; 510, conveyor belt; 520, belt conveyor adjustment equipment; 530, double-roll crusher receiving hopper; 600, return module; 610, hanging screen return chute; 620, return conveyor; 700, power box. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 -Attached Figure 6 This application is described in further detail.

[0030] The embodiments of the present application disclose a mobile regenerated sand powder production and disposal device.

[0031] Reference Figure 1 and Figure 2 A mobile regenerated sand powder production and disposal equipment includes a mobile frame 100 for movement, a crushing module 200 for material crushing, a feeding module 300 for feeding the crushing module 200, a conveying module 500 for conveying the crushed material, a screening module 400 for screening the crushed material, and a reflux module 600 for reflux of the material that has not passed through the screening module 400, wherein the bottom of the crushing module 200 is fixedly connected to the top of the mobile frame 100, and the feeding module 300 is installed on the crushing module 200, the bottom of the feeding module 300 is connected to the mobile frame 100, the screening module 400 is arranged on the other side of the crushing module 200 and is connected to the mobile frame 100, the conveying module 500 is arranged below the crushing module 200, and the end of the conveying module 500 away from the crushing module 200 is located above the screening module 400, the reflux module 600 is arranged below the screening module 400, and the end of the reflux module 600 away from the screening module 400 is located above the feeding module 300.

[0032] Through the above scheme, the feeding module 300 feeds the crushing module 200, so that the crushing module 200 crushes the material. After the material is crushed, it is transported to the screening module 400 for screening through the conveying module 500. The material that passes the screening module 400 is differentiated and used, and the material that does not pass the screening module 400 is refluxed through the reflux module 600, so that the material flows back to the crushing module 200 for crushing again, forming a "crushing-screening-reflux-re-crushing" closed-loop process, avoiding the waste of unqualified materials and improving the yield of recycled sand powder. At the same time, all core modules of crushing, feeding, screening, conveying, and reflux are integrated on the mobile frame 100, realizing the overall mobility of the production line, reducing material transportation costs, and improving operational flexibility. With the coordinated design and use of the feeding module 300, crushing module 200, conveying module 500, screening module 400 and reflux module 600, efficient, automated, and continuous on-site production is achieved, significantly improving the flexibility, efficiency, and environmental protection of resource recycling.

[0033] refer to Figure 2 and Figure 3A power box 700 is provided between the crushing module 200 and the screening module 400 to provide power for the crushing module 200, the screening module 400, the conveying module 500 and the feeding module 300, and the bottom of the power box 700 is fixedly connected to the mobile frame 100; by providing the power box 700 to provide power for multiple core modules such as the crushing module 200, the screening module 400, the conveying module 500 and the feeding module 300, it is avoided that each module is equipped with a power device separately, thereby reducing equipment redundancy. At the same time, the centralized energy supply allows the power pipelines of each module to be uniformly led out from the power box 700, thereby reducing cross-entanglement of pipelines, facilitating sorting and maintenance, and reducing the risk of failure caused by pipeline chaos.

[0034] refer to Figure 2 and Figure 3 The crushing module 200 includes a double-roll crushing device 210 and a double-roll crushing feed hopper 220. The bottom of the double-roll crushing feed hopper 220 is fixedly connected to the top of the double-roll crushing device 210 through a flange, and the bottom of the double-roll crushing device 210 is connected to the mobile frame 100 through bolts.

[0035] Through the above scheme, the roller crushing feed hopper 220 serves as a material buffer and diversion device, which can evenly and continuously introduce the material transported by the feeding module 300 into the roller crushing equipment 210, avoiding equipment overload or jamming due to instantaneous accumulation of materials. At the same time, the roller crushing equipment 210 squeezes and grinds the material through two relatively rotating rollers. The crushing process is gentle and the force is uniform, which can effectively control the particle size of the crushed material and reduce over-crushing. At the same time, the flange itself is a rigid structure. After being bolted, it can withstand the impact force and vibration of the material when it falls, avoiding displacement or falling of the roller crushing feed hopper 220 and the inlet hopper 210-4 due to loosening, thereby ensuring the stability of equipment operation.

[0036] refer to Figure 2 and Figure 3 The feeding module 300 includes a feeding belt conveyor 310 for material transportation, a support rod 320 for supporting the feeding belt conveyor 310, and a hydraulic adjustment device 330 for adjusting the feeding belt conveyor 310, wherein the bottom of the feeding belt conveyor 310 is hingedly connected to the hydraulic adjustment device 330 and one end of the support rod 320, and the other end of the hydraulic adjustment device 330 and the support rod 320 is hingedly connected to the mobile frame 100, and the side of the feeding belt conveyor 310 close to the crushing module 200 is located above the crushing module 200.

[0037] Through the above scheme, the feeding belt conveyor 310 realizes stable material transportation through continuous operation, and can continuously transport raw materials to the feed hopper of the crushing module 200, forming a coherent production process with the crushing module 200 and the screening module 400, avoiding production line shutdowns due to feeding interruptions, and improving overall production efficiency. At the same time, the inclination angle of the feeding belt conveyor 310 can be flexibly changed through the hydraulic adjustment device 330, which can not only meet the feeding requirements of different heights, but also adapt to the terrain conditions of different sites, thereby improving the environmental adaptability of the mobile production line.

[0038] refer to Figure 2 and Figure 3 The conveying module 500 includes a conveyor belt 510 for conveying crushed materials and a belt adjustment device 520 for adjusting the conveyor belt 510. The conveyor belt 510 is fixed and adjusted by the connecting rod inside the mobile frame 100 and the belt adjustment device 520. One end of the conveyor belt 510 is located directly below the discharge port 210-15 of the double-roller crushing equipment 210, and the other end of the conveyor belt 510 is located above the screening module 400.

[0039] Through the above scheme, one end of the conveyor belt 510 is directly located below the discharge port 210-15 of the double-roll crushing equipment 210, so that the crushed material can be received and transported in time to avoid the accumulation of materials at the bottom of the double-roll crushing equipment 210 and cause blockage, ensuring that the material transfer between the crushing module 200 and the screening module 400 is unretained. The other end of the conveyor belt 510 extends to the top of the screening module 400, and can accurately guide the material into the screening equipment, forming a seamless connection of "crushing → conveying → screening", reducing material spillage and loss, and improving the material utilization and operation efficiency of the entire production line. At the same time, the belt conveyor adjustment device 520 can enable the conveyor belt 510 to adjust the inclination angle of the conveyor belt 510 according to the output of the crushed material or fine-tune the conveying terminal height according to the feed port position of the screening module 400, to ensure that the material falls accurately into the screening module 400.

[0040] refer to Figure 2 and Figure 3 A roller crushing receiving hopper 530 is arranged between the conveyor belt 510 and the roller crushing equipment 210. The size of the top of the roller crushing receiving hopper 530 is larger than the size of the discharge port 210-15 of the roller crushing equipment 210, and the size of the bottom of the roller crushing receiving hopper 530 is smaller than the size of the conveyor belt 510.

[0041] Through the above scheme, the roller crushing hopper 530 is designed with a "large top and small bottom" size, so that an efficient, environmentally friendly and protective transition bridge is built between the crushing module 200 and the conveying module 500. When the top size of the roller crushing hopper 530 is larger than the discharge port 210-15 of the roller crushing equipment 210, it can completely cover the discharge port 210-15 area to ensure that the crushed material is effectively received by the roller crushing hopper 530 when it is discharged from the discharge port 210-15, regardless of the particle size or scattering angle, to avoid the waste of raw materials caused by splashing and scattering of materials. When the bottom size of the roller crushing hopper 530 is smaller than the width of the conveyor belt 510, the received material can be concentrated and guided to the middle area of ​​the conveyor belt 510 to avoid the material being dispersed to the edge of the belt, thereby preventing the belt from deviation and increased wear due to material offset, or secondary cleaning costs caused by spillage from the edge.

[0042] refer to Figure 2 、 Figure 3 and Figure 4 The screening module 400 includes a hanging screen device 410 for double-layer screening of crushed materials, a hanging screen adjustment device 420 for adjusting the hanging screen device 410, a finished product conveyor 1 430 for conveying materials that have passed the first layer of screening but not the second layer of screening, and a finished product conveyor 2 440 for conveying materials that have passed the double-layer screening. One end of the hanging screen adjustment device 420 is installed on the mobile frame 100, and the other end of the hanging screen adjustment device 420 is connected to the hanging screen device 410. The finished product conveyor 2 440 is connected to the bottom of the hanging screen device 410 by bolts, and the finished product conveyor 1 430 is directly located on the ground; through the two layers of screens or screening structures with different apertures on the hanging screen device 410 The crushed materials are graded and divided into three categories: coarse materials that fail to pass the first layer of screening are returned for re-crushing, medium-sized materials that pass the first layer but fail the second layer are conveyed by finished product conveyor 1 430, and fine-sized materials that pass the double-layer screening are conveyed by finished product conveyor 2 440. This grading process can directly produce two types of finished sand powder with different particle size specifications to meet the usage requirements of different scenarios, enhance product added value and market adaptability, and at the same time, the hanging screen adjustment device 420 can optimize the screening conditions of the hanging screen device 410 in real time according to the material characteristics or finished product requirements, increase the amplitude and reduce blockage; for scenarios requiring rapid screening, the screen surface inclination can be adjusted to accelerate material flow to ensure screening efficiency and accuracy.

[0043] refer to Figure 2 、 Figure 3 and Figure 4The reflux module 600 includes a hanging screen return chute 610 for returning materials that have not passed through the first layer of screen on the hanging screen device 410, and a reflux conveyor 620 for conveying the reflux materials. The hanging screen return chute 610 is connected to the discharge position of the top layer of the hanging screen device 410 by bolts, and the reflux conveyor 620 is installed on the mobile frame 100. The discharge end of the hanging screen return chute 610 is located above the reflux conveyor 620.

[0044] Through the above scheme, the coarse-grained materials that have not passed through the first layer of the screen of the hanging screen device 410 can be directly sent back to the crushing module 200 for secondary crushing through the hanging screen return chute 610 and the return conveyor 620, forming a closed-loop process of "crushing → screening → return → re-crushing", avoiding the waste of raw materials caused by direct discard of coarse materials, significantly improving the utilization rate of raw materials, and reducing production costs. At the same time, the hanging screen return chute 610 is connected to the uppermost discharge position of the hanging screen device 410 by bolts, and its position directly corresponds to the top of the return conveyor 620, shortening the path of the material from the hanging screen device 410 to the return conveying equipment, and reducing the spillage and residue of the material during the transfer process.

[0045] refer to Figure 5 and Figure 6 The roller crushing equipment 210 includes a main frame 210-1, a main shaft 210-2, a half-bearing seat 210-3, a hopper 210-4, a hydraulic mechanism 210-5, a rotating pin 210-6, a half-bearing seat 210-7, a main shaft 210-8, a main frame 210-9, an adjustment gap assembly 210-10, a grinding roller 210-11, a main shaft 3 210-12, a grinding roller 210-13, a main shaft 4 210-14, a discharge port 210-15 and a base 210-16. The main frame 210-1 and the main frame 210-9 are welded structures, wherein the connection between the main frame 210-1 and the half-bearing seat 210-3 and the connection between the main frame 210-9 and the half-bearing seat 2 210-7 are both bolted connection structures. The main frame 1 210-1 and the main frame 210-9 are both installed with the base 210-16 in a pin-type connection. The main shaft 1 210-2 and the main shaft 2 210-8 are fixedly connected with the half-bearing seat 1 210-3 and the half-bearing seat 2 210-7 respectively. The feed hopper 210-4 and the discharge port 210-15 are fixed to the half-bearing seat 1 210-3 and the base 210-16 respectively. The main frame 1 210-1 and the main frame 1 210-1 are pin-connected through the hydraulic mechanism 210-5. The grinding roller 1 210-11 and the grinding roller 2 210-13 are fixed to the main shaft 3 210-12 and the main shaft 4 210-14 respectively. The main frame 210-9 is rotated by adjusting the gap assembly 210-10 to change the gap between the two main shafts.

[0046] According to the above scheme, the material enters the roller crushing equipment 210 through the feed hopper 210-4 for crushing, and is crushed under the extrusion of the grinding roller 1 210-11 and the grinding roller 2 210-13. The crushed material is discharged through the discharge port 210-15. If the particle size of the crushed material is adjusted, the main frame 1 210-1 and the main frame 2 210-9 can be adjusted by adjusting the hydraulic mechanism 210-5, and then the half bearing seat 1 210-3 and the half bearing seat 2 210-7 can be adjusted. The positional relationship is used to adjust the main frame 210-9 and rotate the gap assembly 210-10 to change the gap between the two main shafts, thereby achieving the effect of changing the particle size of the crushed material. At the same time, when processing mixed bricks, stones and concrete blocks, the hydraulic mechanism 210-5 can first adjust to increase the gap between the grinding roller 1 210-11 and the grinding roller 2 210-13 to crush large pieces of material, and then reduce the gap between the grinding roller 1 210-11 and the grinding roller 2 210-13 to crush the large pieces of material, so as to avoid equipment overload.

[0047] The implementation principle of the embodiment of the present application is as follows: in implementation, by starting the crawler moving device, the crawler moving device drives the mobile frame 100 and the equipment on the mobile frame 100 to move, and after it is adapted to the working area, the crawler moving device is stopped, and then the hydraulic adjustment device 330 is started, and the hydraulic adjustment device 330 drives the feeding belt conveyor 310 to adjust, so that the material placement end of the feeding belt conveyor 310 is adjusted according to demand, so that the feeding belt conveyor 310 is close to the end of the roller crusher feed hopper 220 to cooperate with the roller crusher. The crushing feed hopper 220 is adjusted according to the demand, and then the material reaches the roller crushing feed hopper 220 through the feeding belt conveyor 310, enters the roller crushing equipment 210, is crushed by the grinding roller 1 210-11 and the grinding roller 2 210-13, and then leaks out from the discharge port 210-15 of the roller crushing equipment 210. The crushed material can fully fall into the conveyor belt 510 through the roller crushing receiving hopper 530, and then the conveyor belt 510 continuously transports the material crushed by the roller crushing equipment 210 to the hanging screen device 4. 10 is screened, wherein the bulk materials that have not passed through the first layer of the rotary vibrating screen are slid onto the return conveyor 620 through the suspension screen return chute 610 on the suspension screen device 410, and then the return conveyor 620 conveys the bulk materials to the top of the feeding belt conveyor 310 for cyclic crushing treatment, so that the returned materials are crushed again through the roller crushing device 210, and then conveyed to the suspension screen device 410 through the conveyor belt conveyor 510 for re-screening, wherein the bulk materials that have passed through the first layer of the screen but not through the second layer of the screen are The block materials will fall onto the finished product conveyor 430 and then be transported to the first finished product pile. The small blocks of materials that pass through the second layer of screen will fall into the finished product conveyor 440 located below the suspended screen device 410 and be transported to the second finished product pile, achieving a closed-loop process of crushing-screening-backflow-re-crushing-re-screening, improving the flexibility, efficiency and environmental protection of resource recycling, thereby realizing the full-process integrated operation from on-site material crushing to finished product grading, and achieving the advantages of improving transfer efficiency, material utilization rate, environmental protection indicators, etc.

[0048] During implementation, when the position of the hanging screen device 410 needs to be adjusted, the hanging screen adjustment device 420 is started to drive the hanging screen device 410 and the finished product conveyor 430 directly below the hanging screen device 410 to adjust the angle to adapt to the site requirements. At the same time, after the position of the hanging screen device 410 is adjusted, the belt conveyor adjustment device is started to make the belt conveyor adjustment device drive the conveyor belt 510 to adjust close to one end of the hanging screen device 410, so that the conveyor belt 510 can cooperate with the hanging screen device 410 for adjustment, thereby reducing the falling and waste of materials.

[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A mobile regenerated sand powder production and disposal equipment, characterized in that: The invention comprises a mobile frame (100), wherein a crushing module (200) for crushing materials is arranged directly above the mobile frame (100), a feeding module (300) for feeding materials to the crushing module (200) is arranged on one side of the crushing module (200), and the bottom of the feeding module (300) is connected to the mobile frame (100), and a screening module (400) for screening crushed materials is arranged on the other side of the crushing module (200), and a conveying module (500) for conveying crushed materials is arranged at the bottom of the crushing module (200), and one end of the conveying module (500) away from the crushing module (200) is located above the screening module (400), and a reflux module (600) for reflux of materials is arranged at the bottom of the screening module (400), and one end of the reflux module (600) away from the screening module (400) is located above the feeding module (300).

2. The mobile regenerated sand powder production and disposal equipment according to claim 1 is characterized in that: The crushing module (200) comprises a double-roll crushing device (210) and a double-roll crushing feed hopper (220), the bottom of the double-roll crushing feed hopper (220) is connected to the top of the double-roll crushing device (210), and the bottom of the double-roll crushing device (210) is connected to the mobile frame (100) via bolts.

3. The mobile regenerated sand powder production and disposal equipment according to claim 2, characterized in that: The roller crushing equipment (210) comprises a main frame (210-1), a main shaft (210-2), a half bearing seat (210-3), a feed hopper (210-4), a hydraulic mechanism (210-5), a rotating pin (210-6), a half bearing seat (210-7), a main shaft (210-8), a main frame (210-9), a gap adjustment assembly (210-10), a grinding roller (210-11), a main shaft (210-12), a grinding roller (210-13), a grinding roller (210-14), a grinding roller (210-15), a grinding roller (210-16), a grinding roller (210-17), a grinding roller (210-18), a grinding roller (210-19), a grinding roller (210-20), a grinding roller (210-21), a grinding roller (210-22), a grinding roller (210-23), a grinding roller (210-24), a grinding roller (210-25), a grinding roller (210-26), a grinding roller (210-27), a grinding roller (210-28), a grinding roller (210-29), a grinding roller (210-30), a grinding roller (210-31), a grinding roller (210-32), a grinding roller (210-33), a grinding roller (210-34), a grinding roller (210-35), a grinding roller (210-36), a grinding roller (210-37), a grinding roller (210-38), a grinding roller (210-39), a grinding roller (210-4 -13), main shaft four (210-14), discharge port (210-15) and base (210-16), the main frame one (210-1) and main frame two (210-9) are both welded structures, the main frame one (210-1) and half bearing seat one (210-3) and the main frame two (210-9) and half bearing seat two (210-7) are connected by bolts, the bottom of the main frame one (210-1) and main frame two (210-9) and the base (210- 16) are connected by a pin shaft, the main shaft 1 (210-2) and the main shaft 2 (210-8) are connected to the half bearing seat 1 (210-3) and the half bearing seat 2 (210-7) respectively, the feed hopper (210-4) and the discharge port (210-15) are connected to the half bearing seat 1 (210-3) and the base (210-16) respectively, the main frame 1 (210-1) and the main frame 2 (210-9) are connected to the rotating pin shaft (210) by a hydraulic mechanism (210-5) -6), the grinding roller one (210-11) and the grinding roller two (210-13) are respectively connected to the main shaft three (210-12) and the main shaft four (210-14), the adjusting gap assembly (210-10) is arranged on the main frame one (210-1) and the main frame two (210-9), and the main frame two (210-9) changes the gap between the main shaft three (210-12) and the main shaft four (210-14) by rotating through the adjusting gap assembly (210-10).

4. The mobile regenerated sand powder production and disposal equipment according to claim 3 is characterized in that: The double-roller crushing feed hopper (220) is installed on the feed hopper (210-4) of the double-roller crushing equipment (210) through a flange connection.

5. The mobile regenerated sand powder production and disposal equipment according to claim 1, characterized in that: The feeding module (300) comprises a feeding belt conveyor (310) for material transportation, a support rod (320) for supporting the feeding belt conveyor (310), and a hydraulic adjustment device (330) for adjusting the feeding belt conveyor (310), wherein the feeding belt conveyor (310) is mounted on a mobile frame (100) via the hydraulic adjustment device (330) and the support rod (320), and a side of the feeding belt conveyor (310) close to the crushing module (200) is located above the crushing module (200).

6. The mobile regenerated sand powder production and disposal equipment according to claim 1, characterized in that: The conveying module (500) includes a conveyor belt (510) for conveying crushed materials and a belt adjustment device (520) for adjusting the conveyor belt (510). The conveyor belt (510) is fixed and adjusted by a connecting rod and the belt adjustment device (520) inside the mobile frame (100). One end of the conveyor belt (510) is located directly below the discharge port (210-15) of the roller crushing device (210), and the other end of the conveyor belt (510) is located above the screening module (400).

7. The mobile regenerated sand powder production and disposal equipment according to claim 5, characterized in that: A roller crushing receiving hopper (530) is provided between the conveyor belt (510) and the roller crushing device (210); the size of the top of the roller crushing receiving hopper (530) is larger than the size of the discharge port (210-15) of the roller crushing device (210); and the size of the bottom of the roller crushing receiving hopper (530) is smaller than the size of the conveyor belt (510).

8. The mobile regenerated sand powder production and disposal equipment according to claim 1, characterized in that: The screening module (400) includes a hanging screen device (410) for double-layer screening of crushed materials, a hanging screen adjustment device (420) for adjusting the hanging screen device (410), a finished product conveyor (430) for conveying materials that have passed the first layer screening but not the second layer screening, and a finished product conveyor (440) for conveying materials that have passed the double-layer screening. The hanging screen device (410) is installed on the mobile frame (100) through the hanging screen adjustment device (420), the finished product conveyor (440) is connected to the bottom of the hanging screen device (410) by bolts, and the finished product conveyor (430) is located on the ground.

9. The mobile regenerated sand powder production and disposal equipment according to claim 1, characterized in that: The return module (600) includes a hanging screen return chute (610) for passing materials that have not passed through the first layer of screen on the hanging screen device (410) and a return conveyor (620) for conveying the return materials. The hanging screen return chute (610) is connected to the discharge position of the uppermost layer of the hanging screen device (410) by bolts. The return conveyor (620) is installed on the mobile frame (100). The discharge end of the hanging screen return chute (610) is located above the return conveyor (620).

10. The mobile regenerated sand powder production and disposal equipment according to claim 1, characterized in that: A power box (700) for providing power to the crushing module (200), the screening module (400), the conveying module (500), and the feeding module (300) is provided between the crushing module (200) and the screening module (400), and the bottom of the power box (700) is connected to the mobile frame (100).

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