Dangerous solid waste recovery pretreatment equipment

Abstract

The invention relates to the technical field of recycling treatment equipment, and discloses dangerous solid waste recycling pretreatment equipment which comprises a front-end treatment box which serves as one of basic components of the whole device and is used for assembling and bearing a feeding treatment mechanism, a negative-pressure infiltration mechanism and lower structural components of the feeding treatment mechanism and the negative-pressure infiltration mechanism. And the rear-end treatment box serves as one of basic components of the whole device and is used for assembling and bearing the multiple crushing mechanisms, the grinding and grading mechanisms and lower structural components of the multiple crushing mechanisms and the grinding and grading mechanisms. A building containing asbestos fibers is placed in a negative pressure environment through a negative pressure infiltration mechanism, diluted hydrochloric acid is used for spraying the building waste, firstly, the building waste containing the asbestos fibers is placed in the negative pressure environment, and when the diluted hydrochloric acid is used for spraying, the diluted hydrochloric acid can be rapidly immersed into the waste under the negative pressure effect; advantageous conditions are created for follow-up crushing treatment, the treatment efficiency is effectively improved, and the diluted hydrochloric acid can promote asbestos fibers to agglomerate and prevent the asbestos fibers from drifting to the surrounding environment.

Description

Technical Field

[0001] The invention relates to the technical field of recycling and processing equipment, and in particular to a hazardous solid waste recycling and preprocessing equipment. Background Art

[0002] Construction waste refers to various types of waste generated during the construction, renovation, expansion or demolition of buildings. It contains a variety of components, such as discarded concrete blocks, bricks, wood, metal, glass, and possible harmful substances such as asbestos. Inorganic materials such as concrete and bricks account for a large proportion. If these materials are not properly handled, they will not only occupy a large amount of land space, but also cause potential pollution to soil and water bodies. For example, heavy metal components in them may seep out and pollute soil and groundwater. Harmful substances such as asbestos, whose fibers are inhaled by the human body after floating in the air, can cause serious lung diseases. However, construction waste is not worthless. The renewable resources in it are reasonably sorted and processed, such as concrete aggregates can be recycled for recycled concrete production, metals can be recycled and reprocessed, and wood can be reused or converted into biomass energy, etc., so as to achieve the recycling of resources, reduce dependence on primary resources and reduce environmental pressure.

[0003] Asbestos is a good thermal insulator. In building insulation materials, asbestos fibers can effectively prevent the transfer of heat. There are a large number of air gaps in its fiber structure, which can reduce the efficiency of heat conduction. Therefore, using asbestos materials in the wall or pipe insulation layer of a building can reduce the loss of indoor heat in winter and prevent the introduction of external heat in summer, thereby saving energy and maintaining a comfortable indoor temperature. In addition, asbestos also has excellent fire resistance, which can greatly improve the fire resistance of the entire building. Although asbestos has a large function in buildings, after the building is demolished, as asbestos fibers are very fine, they are easily formed into suspended particles in the air, which can cause serious health hazards after being inhaled by the human body. Therefore, a technician in this field has proposed a hazardous solid waste recycling pretreatment device to solve the above-mentioned technical problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a hazardous solid waste recycling pretreatment device, which solves the problem that asbestos fibers in construction waste are easily dispersed during the treatment process, thereby affecting the surrounding environment and workers.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a hazardous solid waste recycling pretreatment device, comprising

[0006] The front-end processing box, as one of the basic components of the overall device, is used to assemble and carry the feeding processing mechanism and the negative pressure infiltration mechanism and their subordinate structural parts;

[0007] The rear processing box, as one of the basic components of the whole device, is used to assemble and carry multiple crushing mechanisms and grinding and grading mechanisms and their subordinate structural parts;

[0008] A material handling mechanism is arranged at the rear side of the front-end handling box and is used for collecting and handling the preliminary dust and asbestos floating materials of the construction waste containing asbestos fibers entering the front-end handling box;

[0009] A negative pressure infiltration mechanism is arranged in the front-end processing box and is used to perform infiltration treatment on the construction waste containing asbestos fibers entering the front-end processing box under a negative pressure environment;

[0010] The multiple crushing mechanism is arranged at the middle and upper part of the inner side of the rear-end processing box, and is used to perform multiple crushing treatments on the construction waste after being treated by the negative pressure infiltration mechanism;

[0011] The grinding and grading mechanism is arranged at the lower middle part of the inner side of the rear end processing box, and is used for grinding, grading and screening the construction waste after being processed by the multiple crushing mechanisms.

[0012] Preferably, the feeding processing mechanism includes a one-way feeding channel, a one-way feeding channel is arranged in the upper middle part of one side of the front-end processing box, and the interior of the one-way feeding channel is connected with the interior of the front-end processing box, a support frame is arranged on the rear side of the front-end processing box, a filter box is arranged on the inner side of the support frame, a top seat is arranged on the top of the front-end processing box, and a base is arranged on the bottom of the front-end processing box.

[0013] Preferably, the feeding processing mechanism also includes a collecting cylinder, a plurality of collecting cylinders are equidistantly arranged at the bottom of the filter box, and the interiors of the collecting cylinders are connected to the interior of the filter box, a plurality of vibrators are equidistantly arranged at the top of the filter box, a fan is arranged in the middle of the rear side of the front-end processing box, an air inlet of the fan is connected to the middle of the top of the top seat through a connecting pipe, and an air outlet of the fan is connected to the middle of one side of the filter box through a connecting pipe.

[0014] Preferably, the negative pressure infiltration mechanism includes a negative pressure vacuum pump, and a negative pressure vacuum pump is arranged in the upper middle part of the front side of the front-end processing box, which is used to evacuate the interior of the front-end processing box into a negative pressure vacuum state, and a sloped guide seat is fixedly connected to the lower middle part of the inner side of the front-end processing box, and a plurality of infiltration grooves are equidistantly arranged on the sloped guide seat, and the bottom of the sloped guide seat and the top of the base constitute a bottom collecting chamber, and the top of the sloped guide seat and the bottom of the top seat constitute a top processing chamber.

[0015] Preferably, the negative pressure infiltration mechanism includes a spray row, spray rows are arranged on both sides of the bottom of the top seat, an annular diverter seat is arranged on the top of the top seat, a delivery pump is arranged on one side of the middle part of the rear end of the front-end processing box, a dilute hydrochloric acid storage tank is arranged in the middle and lower part of one side of the front-end processing box, the liquid inlet of the delivery pump is connected with the bottom of the dilute hydrochloric acid storage tank through a connecting pipe, the liquid outlet of the delivery pump is connected with the interior of the annular diverter seat through a connecting pipe, and a cleaning door is arranged in the middle of the bottom end of the front side of the front-end processing box.

[0016] Preferably, the multiple crushing mechanism includes an aggregate box, an aggregate box is provided in the middle of the top end of the rear end processing box, and the bottom of the aggregate box is connected with the interior of the rear end processing box, one side of the front end processing box is connected with the interior of the aggregate box through a material elevator, a crushing chamber is provided in the middle and upper part of the inner side of the rear end processing box, both sides of the middle of the crushing chamber are rotatably connected with extrusion rollers, and the ends of the extrusion rollers pass through the rear end processing box and extend outward, and the ends of the extrusion rollers are fixedly connected with synchronous gears, a drive motor is provided on one side of the middle part of the front end of the rear end processing box, and the output end of the drive motor passes through the rear end processing box and is connected to the middle of one end of the extrusion roller at the corresponding position.

[0017] Preferably, the multiple crushing mechanism also includes a second crushing chamber, the top of the second crushing chamber is connected to the bottom of the first crushing chamber, a triangular mounting seat is fixedly connected to the middle of the top end of the second crushing chamber, a rotating seat is rotatably connected to the middle of the bottom end of the triangular mounting seat, a plurality of crushing and mixing rods are equidistantly arranged on the outer wall of the rotating seat, and a plurality of material receiving plates are equidistantly arranged on the inner wall of the second crushing chamber.

[0018] Preferably, the grinding and grading mechanism includes a grinding chamber, a grinding chamber is provided in the middle and lower part of the inner side of the rear-end processing box, the top of the grinding chamber is connected with the second crushing chamber, a driving rod is fixedly connected to the middle part of the bottom end of the rotating seat, and a grinding seat is fixedly connected to the middle and lower part of the driving rod, a mounting plate is fixedly connected to the middle and lower part of the rear side of the rear-end processing box, a driving motor 2 is provided in the middle part of the top end of the mounting plate, and the output end of the driving motor 2 passes through the mounting plate and extends downward, a pulley is provided at the output end of the driving motor 2 and the middle part of the driving rod, and the pulley is connected through a connecting belt, and a protective cover is provided at the middle and lower part of the inner side of the rear-end processing box.

[0019] Preferably, the grinding and grading mechanism also includes a discharge channel, the top of the discharge channel is connected to the bottom of the grinding chamber, the middle of the bottom end of the driving rod is connected to the middle of the top end of the upper raised seat through a connecting rod, and a mounting rod is slidably connected to the middle and inner side of the grinding seat. The bottom ends of the mounting rods are respectively connected to corresponding positions of the top end of the vibration block near the edge, and connecting springs are arranged on the mounting rods. The middle of the top end of the vibration block is fixedly connected to the lower raised seat.

[0020] Preferably, the grinding and grading mechanism also includes an annular screen, an annular screen is arranged at the inner bottom of the grinding seat, a finished product collecting chamber is arranged in the middle of the inner bottom end of the rear end processing box, the middle of the top end of the finished product collecting chamber is connected to the bottom of the discharge channel, and a discharge door is arranged at the front bottom of the rear end processing box.

[0021] Working principle: When processing construction waste containing asbestos fibers, first the feeding and processing mechanism is started, and the construction waste containing asbestos fibers enters the front-end processing box through the one-way feeding channel, and then enters the front-end processing box. The construction waste containing asbestos fibers falls on the infiltration tank in the front-end processing box and rolls under the guidance of the inclined surface on the infiltration tank. While rolling, the dust generated by it floats in the air in the top processing chamber. At this time, the fan on the front-end processing box is started, and the fan pumps and transports the air in the top processing chamber and the dust and asbestos fiber materials carried in the air through the connecting pipe, so that they enter the filter box on the support frame, and then are filtered and separated by the filter material in the filter box. After that, the vibrator on the filter box is started and vibrates, so that the dust and asbestos fibers captured on the filter material in the filter box are vibrated and separated into the collection tube for centralized collection. This completes the processing of the loading process of the construction waste; then the negative pressure infiltration mechanism is started, first the negative pressure vacuum pump on the front end processing box is started, and the negative pressure vacuum pump draws the interior of the front end processing box into a vacuum negative pressure state while starting, and then the delivery pump on the front end processing box is started, and the delivery pump draws the dilute hydrochloric acid solution in the dilute hydrochloric acid storage box on the front end processing box through the connecting pipe and delivers it to the annular diverter seat on the top seat, and then the dilute hydrochloric acid solution entering the annular diverter seat is diverted to the spray row at the bottom of the top seat to be sprayed onto the construction waste on the infiltration tank. On the one hand, the construction waste can be infiltrated by dissolving with dilute hydrochloric acid, thereby reducing the difficulty of subsequent crushing and processing. On the other hand, the dilute hydrochloric acid solution can also react chemically with the asbestos fibers in the construction waste, so that the asbestos fibers are changed from a dispersed state to an agglomerated state, thereby avoiding the impact on the staff and the environment caused by the dispersion and floating of the fibers;Then the multiple crushing mechanisms are started, and the construction waste processed by the negative pressure infiltration treatment mechanism is transported to the aggregate box on the rear-end processing box through the material elevator, and then the construction materials in the aggregate box fall into the crushing chamber 1. At this time, the driving motor 1 is started, and the rotating shaft of the driving motor 1 drives the squeezing roller to rotate. While the squeezing roller is rotating in the crushing chamber 1, the squeezing roller on the other side is driven by the synchronous gear to rotate in the opposite direction. After the construction waste after the negative pressure infiltration treatment enters the crushing chamber 1, the construction waste after the negative pressure infiltration is preliminarily crushed through the synergistic effect of the two squeezing rollers and the squeezing roller and the inner wall. After the preliminary crushing treatment, the construction waste enters the second crushing chamber, and falls on the uppermost receiving plate through the guidance of the triangular mounting seat, and slides down layer by layer. At this time, the second driving motor on the mounting plate is started, and the rotating shaft of the second driving motor rotates while the synergistic effect of the pulley and the connecting belt drives the driving rod to rotate synchronously, and the connecting belt is protected by the protective cover at the same time. Then, as the driving rod rotates, the rotating seat on it and the crushing and mixing rod on the outer wall are synchronously driven to rotate. When the crushing and mixing rod rotates, the powder that slides down layer by layer is crushed for the second time through the cooperation with the receiving plates at each position. The post-grinding and grading mechanism is started, and the construction waste that has been crushed twice in the second crushing chamber enters the grinding chamber, and as the driving rod rotates, the grinding seat at the bottom also rotates synchronously, and while it rotates, it cooperates with the inner wall of the grinding chamber to grind the materials entering the grinding chamber. As the driving rod rotates, the driving rod drives the upper raised seat at the bottom to rotate synchronously through the connecting rod, and while the upper raised seat rotates, its upper convex block rotates synchronously, so that the lower raised seat at the bottom moves up and down, and while the lower raised seat moves up and down, it drives the annular screen on it and the vibration block at the bottom to rotate synchronously The vibrating block and the lower protruding seat on the mounting rod are pulled and reset by the connecting spring on the mounting rod. When the vibrating block moves up and down under the coordinated action of the lower protruding seat, the vibrating block impacts and vibrates the annular screen at the bottom, so that the materials after grinding in the grinding chamber are screened by the annular screen and fall into the discharge channel. Finally, the materials falling into the discharge channel enter the finished product collection chamber for collection. The staff can collect the pre-treated construction waste materials in a centralized manner or use them for subsequent processing by opening the discharge door on the processing box, thereby completing the grinding and grading of construction waste. ;

[0022] The present invention provides a hazardous solid waste recycling pretreatment device, which has the following beneficial effects:

[0023] 1. The present invention adds and sets a feeding and processing mechanism to adsorb and filter the dust and floating asbestos fibers generated during the transportation of construction waste containing asbestos fibers before processing. This can not only effectively curb the spread of asbestos fibers to the surrounding environment, greatly reduce air pollution, ensure the air quality in the working area and the surrounding area, reduce the risk of asbestos fibers being inhaled by the human body, and effectively protect the health of workers and surrounding residents, but also the mechanism improves the cleanliness and safety of the front end of the entire processing flow, lays a good foundation for the smooth development of subsequent processing procedures, and improves the overall environmental protection level and reliability of the asbestos-containing construction waste treatment operation.

[0024] 2. The present invention places the building containing asbestos fibers in a negative pressure environment by adding and setting a negative pressure infiltration mechanism, and sprays it with dilute hydrochloric acid. First, the construction waste containing asbestos fibers is placed in a negative pressure environment. When spraying with dilute hydrochloric acid, the negative pressure effect can accelerate the dilute hydrochloric acid to quickly penetrate into the waste, creating favorable conditions for subsequent crushing treatment and effectively improving the treatment efficiency. Secondly, the dilute hydrochloric acid can promote the agglomeration of asbestos fibers, greatly reducing the possibility of leakage of asbestos fibers in the subsequent treatment stage, and preventing them from drifting into the surrounding environment. It not only protects the surrounding ecological environment, but also ensures the health and safety of the staff, making the entire treatment process of asbestos-containing construction waste more environmentally friendly and more reliable.

[0025] 3. The present invention increases and sets multiple crushing mechanisms. When treating asbestos-containing construction waste after spraying a dilute hydrochloric acid solution, the construction waste can be gradually refined through a multi-stage crushing process. On the one hand, the asbestos fibers can be more fully separated from other building materials, which is conducive to the subsequent accurate separation and recycling of valuable components therein, thereby improving the resource recovery rate. On the other hand, the crushing after the dilute hydrochloric acid pretreatment can effectively control the dispersion of asbestos fibers in agglomerated state during the crushing process, thereby reducing the potential threat to the environment and the health of operators, making the entire treatment process safer, more efficient and environmentally friendly.

[0026] 4. The present invention adds and sets a grinding and grading mechanism. When treating the asbestos-containing construction waste after multiple crushing, the grinding process can further refine the material, so that the asbestos fiber can be more thoroughly separated from other matrix materials, thereby improving the accuracy of subsequent harmless treatment. The grading and screening treatment can accurately distinguish materials of different particle sizes, ensuring that fine particles that meet the requirements enter the subsequent treatment links, improving the treatment efficiency and quality. At the same time, the mechanism is conducive to the rational classification and recycling of resources, such as effectively separating reusable construction material particles from asbestos fibers, reducing the total amount of waste, reducing treatment costs and realizing the recycling of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1It is a schematic diagram of the front right side structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the rear end right side structure of the present invention;

[0029] Figure 3 It is a schematic diagram of the rear end left side structure of the present invention;

[0030] Figure 4 It is a cross-sectional schematic diagram of the internal structure of the processing box of the present invention;

[0031] Figure 5 It is a schematic diagram of the bottom structure of the top seat of the present invention;

[0032] Figure 6 It is a cross-sectional schematic diagram of the internal structure of the rear-end processing box of the present invention;

[0033] Figure 7 It is a schematic diagram of the partial structure of the lower part of the rear-end processing box of the present invention;

[0034] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of .

[0035] Among them, 1. Base; 2. Front-end processing box; 3. Dilute hydrochloric acid storage box; 4. Support frame; 5. Cleaning door; 6. Top seat; 7. Collecting box; 8. Driving motor 1; 9. Rear-end processing box; 10. Discharging door; 11. Material elevator; 12. Negative pressure vacuum pump; 13. One-way feeding channel; 14. Annular diverter seat; 15. Filter box; 16. Vibrator; 17. Mounting plate; 18. Driving motor 2; 19. Synchronous gear; 20. Fan; 21. Pulley; 22. Protective cover; 23. Delivery pump; 24. Filtration tank; 25. Inclined guide seat; 26, bottom collecting chamber; 27, top processing chamber; 28, spray row; 29, collecting cylinder; 30, mounting rod; 31, annular screen; 32, lower raised seat; 33, crushing chamber one; 34, extrusion roller; 35, triangular mounting seat; 36, crushing chamber two; 37, rotating seat; 38, receiving plate; 39, crushing and mixing rod; 40, driving rod; 41, grinding seat; 42, discharging channel; 43, finished product collecting chamber; 44, vibration block; 45, grinding chamber; 46, upper raised seat; 47, connecting rod; 48, connecting spring. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please see attached Figure 1 - Attachment Figure 8 The embodiment of the present invention provides a hazardous solid waste recycling pretreatment device, including a front-end treatment box 2, which is one of the basic components of the overall device and is used to assemble and carry a feeding processing mechanism and a negative pressure infiltration mechanism and their subordinate structural parts; a rear-end treatment box 9, which is one of the basic components of the overall device and is used to assemble and carry a multiple crushing mechanism and a grinding and grading mechanism and their subordinate structural parts;

[0038] The material handling mechanism is arranged at the rear side of the front-end handling box 2 and is used for collecting and handling the preliminary dust and asbestos floating materials of the construction waste containing asbestos fibers entering the front-end handling box 2;

[0039] The feeding processing mechanism includes a one-way feeding channel 13, which is arranged at the middle and upper part of one side of the front-end processing box 2, and the interior of the one-way feeding channel 13 is connected with the interior of the front-end processing box 2, a support frame 4 is arranged at the rear side of the front-end processing box 2, a filter box 15 is arranged on the inner side of the support frame 4, a top seat 6 is arranged at the top of the front-end processing box 2, and a base 1 is arranged at the bottom of the front-end processing box 2.

[0040] When the feeding and processing mechanism is started, the construction waste containing asbestos fibers enters the front-end processing box 2 through the one-way feeding channel 13, and then falls on the infiltration tank 24 in the front-end processing box 2, and rolls under the guidance of the inclined surface of the infiltration tank 24. While rolling, the dust generated by it floats in the air in the top processing chamber 27.

[0041] The feeding processing mechanism also includes a collecting cylinder 29. A plurality of collecting cylinders 29 are equidistantly arranged at the bottom of the filter box 15, and the interiors of the collecting cylinders 29 are connected to the interior of the filter box 15. A plurality of vibrators 16 are equidistantly arranged at the top of the filter box 15. A fan 20 is arranged in the middle of the rear side of the front end processing box 2. The air inlet of the fan 20 is connected to the middle of the top of the top seat 6 through a connecting pipe, and the air outlet of the fan 20 is connected to the middle of one side of the filter box 15 through a connecting pipe.

[0042] At this time, the fan 20 on the front-end processing box 2 is started, and the fan 20 pumps and transports the air in the top processing chamber 27 and the dust and asbestos fiber materials carried in the air through the connecting pipe, so that they enter the filter box 15 on the support frame 4, and then are filtered and separated by the filter material in the filter box 15. After that, the vibrator 16 on the filter box 15 is started and vibrates, so that the dust and asbestos fibers captured on the filter material in the filter box 15 are vibrated and separated into the collection tube 29 for centralized collection, thereby completing the processing of the construction waste during the loading process.

[0043] A negative pressure infiltration mechanism is arranged in the front-end processing box 2 and is used to perform infiltration treatment on the construction waste containing asbestos fibers entering the front-end processing box 2 under a negative pressure environment;

[0044] The negative pressure infiltration mechanism includes a negative pressure vacuum pump 12, and a negative pressure vacuum pump 12 is arranged at the upper middle part of the front side of the front end processing box 2, which is used to evacuate the interior of the front end processing box 2 into a negative pressure vacuum state. A sloped guide seat 25 is fixedly connected to the lower middle part of the inner side of the front end processing box 2, and a plurality of infiltration grooves 24 are equidistantly arranged on the sloped guide seat 25. The bottom of the sloped guide seat 25 and the top of the base 1 constitute a bottom collecting chamber 26, and the top of the sloped guide seat 25 and the bottom of the top seat 6 constitute a top processing chamber 27.

[0045] The negative pressure infiltration mechanism includes a spray row 28, spray rows 28 are arranged on both sides of the bottom of the top seat 6, an annular diverter seat 14 is arranged on the top of the top seat 6, a delivery pump 23 is arranged on one side of the middle part of the rear end of the front-end processing box 2, a dilute hydrochloric acid storage tank 3 is arranged in the middle and lower part of one side of the front-end processing box 2, the liquid inlet of the delivery pump 23 is connected with the bottom of the dilute hydrochloric acid storage tank 3 through a connecting pipe, the liquid outlet of the delivery pump 23 is connected with the inside of the annular diverter seat 14 through a connecting pipe, and a cleaning door 5 is arranged in the middle of the bottom end of the front side of the front-end processing box 2.

[0046] When the negative pressure infiltration mechanism is started, the negative pressure vacuum pump 12 on the front-end processing box 2 is started first. The negative pressure vacuum pump 12 draws the interior of the front-end processing box 2 into a vacuum negative pressure state while starting. Then the delivery pump 23 on the front-end processing box 2 is started. The delivery pump 23 draws the dilute hydrochloric acid solution in the dilute hydrochloric acid storage tank 3 on the front-end processing box 2 through the connecting pipe and delivers it to the annular diverter seat 14 on the top seat 6. The dilute hydrochloric acid solution then enters the annular diverter seat 14 and diverts it to the spray row 28 at the bottom of the top seat 6 to be sprayed onto the construction waste on the infiltration tank 24. On the one hand, the construction waste can be infiltrated by dissolving it with dilute hydrochloric acid, thereby reducing the difficulty of subsequent crushing and processing. On the other hand, the dilute hydrochloric acid solution can also react chemically with the asbestos fibers in the construction waste, thereby changing the asbestos fibers from a dispersed state to a clustered state, thereby avoiding the impact of the dispersed floating of the fibers on the staff and the environment.

[0047] The multiple crushing mechanism is arranged at the middle and upper part of the inner side of the rear-end processing box 9, and is used to perform multiple crushing treatment on the construction waste after being treated by the negative pressure infiltration mechanism;

[0048] The multiple crushing mechanism includes an aggregate box 7, an aggregate box 7 is arranged in the middle of the top of the rear end processing box 9, and the bottom of the aggregate box 7 is connected with the interior of the rear end processing box 9, one side of the front end processing box 2 is connected with the interior of the aggregate box 7 through the material hoist 11, a crushing chamber 33 is arranged in the middle and upper part of the inner side of the rear end processing box 9, both sides of the middle of the crushing chamber 33 are rotatably connected with squeezing rollers 34, and the ends of the squeezing rollers 34 penetrate the rear end processing box 9 and extend outward, and the ends of the squeezing rollers 34 are fixedly connected with synchronous gears 19, a driving motor 8 is arranged on one side of the middle of the front end of the rear end processing box 9, and the output end of the driving motor 8 penetrates the rear end processing box 9 and is connected with the middle of one end of the squeezing roller 34 at the corresponding position.

[0049] When the multiple crushing mechanisms are started, the construction waste processed by the negative pressure infiltration treatment mechanism is transported to the aggregate box 7 on the rear end processing box 9 through the material hoist 11, and then the construction materials in the aggregate box 7 fall into the crushing chamber 33. At this time, the drive motor 8 is started, and the rotating shaft of the drive motor 8 drives the squeezing roller 34 to rotate. While the squeezing roller 34 is rotating in the crushing chamber 33, the squeezing roller 34 on the other side is driven to rotate in the opposite direction through the synchronous gear 19. After the construction waste after the negative pressure infiltration treatment enters the crushing chamber 33, the construction waste after the negative pressure infiltration is preliminarily crushed through the coordinated action of the two squeezing rollers 34 and the squeezing roller 34 and the inner wall.

[0050] The multiple crushing mechanism also includes a second crushing chamber 36, the top of the second crushing chamber 36 is connected to the bottom of the first crushing chamber 33, a triangular mounting seat 35 is fixedly connected to the middle of the top end of the second crushing chamber 36, and a rotating seat 37 is rotatably connected to the middle of the bottom end of the triangular mounting seat 35. A plurality of crushing and mixing rods 39 are equidistantly arranged on the outer wall of the rotating seat 37, and a plurality of receiving plates 38 are equidistantly arranged on the inner wall of the second crushing chamber 36.

[0051] After the preliminary crushing treatment, the construction waste enters the crushing chamber 36, and falls on the uppermost receiving plate 38 through the guidance of the triangular mounting seat 35, and slides down layer by layer. At this time, the driving motor 18 on the mounting plate 17 is started, and the rotating shaft of the driving motor 18 rotates while the driving rod 40 is driven to rotate synchronously through the synergistic effect of the pulley 21 and the connecting belt, and the connecting belt is protected by the protective cover 22 at the same time. Then, as the driving rod 40 rotates, the rotating seat 37 on it and the crushing and mixing rod 39 on the outer wall are synchronously driven to rotate. When the crushing and mixing rod 39 rotates, the powder that slides down layer by layer is crushed for the second time through the cooperation with the receiving plates 38 at each position.

[0052] The grinding and grading mechanism is arranged at the lower middle part of the inner side of the rear end processing box 9, and is used for grinding, grading and screening the construction waste after being processed by the multiple crushing mechanisms.

[0053] The grinding and grading mechanism includes a grinding chamber 45, a grinding chamber 45 is provided at the lower middle part of the inner side of the rear end processing box 9, the top of the grinding chamber 45 is connected with the second crushing chamber 36, a driving rod 40 is fixedly connected to the middle part of the bottom end of the rotating seat 37, a grinding seat 41 is fixedly connected to the lower middle part of the driving rod 40, a mounting plate 17 is fixedly connected to the middle part of the rear side of the rear end processing box 9, a driving motor 18 is provided at the middle part of the top end of the mounting plate 17, and the output end of the driving motor 18 passes through the mounting plate 17 and extends downward, a pulley 21 is provided at the output end of the driving motor 18 and the middle part of the driving rod 40, and the pulley 21 is connected by a connecting belt, and a protective cover 22 is provided at the lower middle part of the inner side of the rear end processing box 9.

[0054] When the grinding and grading mechanism is started, the construction waste after secondary crushing in the crushing chamber 36 enters the grinding chamber 45, and as the driving rod 40 rotates, the grinding seat 41 at the bottom also rotates synchronously, and while it rotates, it cooperates with the inner wall of the grinding chamber 45 to grind the material entering the grinding chamber 45.

[0055] The grinding and grading mechanism also includes a discharge channel 42, the top of the discharge channel 42 is connected to the bottom of the grinding chamber 45, the middle of the bottom end of the driving rod 40 is connected to the middle of the top end of the upper raised seat 46 through a connecting rod 47, and the inner middle and lower part of the grinding seat 41 is slidably connected with the mounting rod 30, and the bottom ends of the mounting rod 30 are respectively connected to the corresponding positions of the top of the vibration block 44 near the edge, and a connecting spring 48 is arranged on the mounting rod 30, and the middle of the top end of the vibration block 44 is fixedly connected with the lower raised seat 32.

[0056] As the driving rod 40 rotates, the driving rod 40 drives the upper raised seat 46 at the bottom to rotate synchronously through the connecting rod 47. The upper raised seat 46 rotates and its upper protrusion rotates synchronously, so that the lower raised seat 32 at the bottom moves up and down. When the lower raised seat 32 moves up and down, the annular screen 31 thereon and the vibration block 44 at the bottom are driven to move synchronously, and the connecting spring 48 on the mounting rod 30 pulls and drives the vibration block 44 and the lower raised seat 32 thereon to reset.

[0057] The grinding and grading mechanism also includes an annular screen 31. An annular screen 31 is arranged at the inner bottom of the grinding seat 41. A finished product collecting chamber 43 is arranged in the middle of the inner bottom end of the rear end processing box 9. The middle of the top end of the finished product collecting chamber 43 is connected to the bottom of the discharge channel 42. A discharge door 10 is arranged at the front bottom of the rear end processing box 9.

[0058] While the vibration block 44 moves up and down under the synergistic action of the lower raised seat 32, the vibration block 44 impacts and vibrates the annular screen 31 at the bottom, so that the material after grinding in the grinding chamber 45 passes through the annular screen 31 and falls into the discharge channel 42. Finally, the material falling into the discharge channel 42 enters the finished product collection chamber 43 for collection. The staff can collect the pre-treated construction waste materials in a centralized manner or use them for subsequent processing by opening the discharge door 10 on the rear-end processing box 9, thereby completing the grinding and grading of the construction waste.

[0059] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hazardous solid waste recycling pretreatment device, characterized in that: include A front-end processing box (2), which is one of the basic components of the overall device and is used to assemble and carry the material handling mechanism and the negative pressure infiltration mechanism and their subordinate structural parts; The rear-end processing box (9), as one of the basic components of the overall device, is used to assemble and carry the multiple crushing mechanisms and grinding and grading mechanisms and their subordinate structural parts; A material handling mechanism, which is arranged at the rear side of the front-end handling box (2) and is used to carry out preliminary dust collection and handling of asbestos floating matter from the construction waste containing asbestos fibers that enters the front-end handling box (2); A negative pressure infiltration mechanism, which is arranged in the front-end processing box (2) and is used to perform infiltration treatment on the construction waste containing asbestos fibers that enters the front-end processing box (2) under a negative pressure environment; A multiple crushing mechanism, which is arranged at the middle upper part of the inner side of the rear end processing box (9), and is used to perform multiple crushing treatments on the construction waste after being processed by the negative pressure infiltration mechanism; The grinding and grading mechanism is arranged at the lower middle part of the inner side of the rear end processing box (9) and is used for grinding, grading and screening the construction waste after the multiple crushing mechanisms have processed it.

2. The hazardous solid waste recycling pretreatment equipment according to claim 1, characterized in that: The feeding processing mechanism comprises a one-way feeding channel (13), a one-way feeding channel (13) is arranged at the middle and upper part of one side of the front-end processing box (2), and the interior of the one-way feeding channel (13) is connected to the interior of the front-end processing box (2), a support frame (4) is arranged at the rear side of the front-end processing box (2), a filter box (15) is arranged on the inner side of the support frame (4), a top seat (6) is arranged at the top of the front-end processing box (2), and a base (1) is arranged at the bottom of the front-end processing box (2).

3. The hazardous solid waste recycling pretreatment equipment according to claim 2, characterized in that: The feeding processing mechanism also includes a collecting cylinder (29), a plurality of collecting cylinders (29) are equidistantly arranged at the bottom of the filter box (15), and the interiors of the collecting cylinders (29) are all connected to the interior of the filter box (15), a plurality of vibrators (16) are equidistantly arranged at the top of the filter box (15), a fan (20) is arranged in the middle of the rear side of the front-end processing box (2), an air inlet of the fan (20) is connected to the middle of the top end of the top seat (6) through a connecting pipe, and an air outlet of the fan (20) is connected to the middle of one side of the filter box (15) through a connecting pipe.

4. The hazardous solid waste recycling pretreatment equipment according to claim 1, characterized in that: The negative pressure infiltration mechanism comprises a negative pressure vacuum pump (12), and a negative pressure vacuum pump (12) is arranged at the front middle upper part of the front side of the front end processing box (2), which is used to evacuate the interior of the front end processing box (2) into a negative pressure vacuum state. The inner middle lower part of the front end processing box (2) is fixedly connected with an inclined guide seat (25), and a plurality of infiltration grooves (24) are evenly spaced on the inclined guide seat (25). The bottom of the inclined guide seat (25) and the top of the base (1) constitute a bottom collecting chamber (26), and the top of the inclined guide seat (25) and the bottom of the top seat (6) constitute a top processing chamber (27).

5. The hazardous solid waste recycling pretreatment equipment according to claim 4, characterized in that: The negative pressure infiltration mechanism comprises a spray row (28), spray rows (28) are arranged on both sides of the bottom of the top seat (6), an annular diverter seat (14) is arranged on the top of the top seat (6), a delivery pump (23) is arranged on one side of the middle part of the rear end of the front-end processing box (2), a dilute hydrochloric acid storage box (3) is arranged in the middle and lower part of one side of the front-end processing box (2), the liquid inlet of the delivery pump (23) is connected to the bottom of the dilute hydrochloric acid storage box (3) through a connecting pipe, the liquid outlet of the delivery pump (23) is connected to the inside of the annular diverter seat (14) through a connecting pipe, and a cleaning door (5) is arranged in the middle of the bottom end of the front side of the front-end processing box (2).

6. The hazardous solid waste recycling pretreatment equipment according to claim 1, characterized in that: The multiple crushing mechanism includes an aggregate box (7), an aggregate box (7) is provided at the middle of the top of the rear end processing box (9), and the bottom of the aggregate box (7) is connected to the interior of the rear end processing box (9), one side of the front end processing box (2) is connected to the interior of the aggregate box (7) through a material elevator (11), a crushing chamber (33) is provided at the middle and upper part of the inner side of the rear end processing box (9), both sides of the middle of the crushing chamber (33) are rotatably connected with squeezing rollers (34), and the ends of the squeezing rollers (34) penetrate the rear end processing box (9) and extend outward, and the ends of the squeezing rollers (34) are fixedly connected with synchronous gears (19), and a driving motor (8) is provided on one side of the middle of the front end of the rear end processing box (9), and the output end of the driving motor (8) penetrates the rear end processing box (9) and is connected to the middle of one end of the squeezing roller (34) at the corresponding position.

7. The hazardous solid waste recycling pretreatment equipment according to claim 6, characterized in that: The multiple crushing mechanism also includes a second crushing chamber (36), the top of the second crushing chamber (36) is connected to the bottom of the first crushing chamber (33), a triangular mounting seat (35) is fixedly connected to the middle of the top end of the second crushing chamber (36), and a rotating seat (37) is rotatably connected to the middle of the bottom end of the triangular mounting seat (35), a plurality of crushing and mixing rods (39) are equidistantly arranged on the outer wall of the rotating seat (37), and a plurality of material receiving plates (38) are equidistantly arranged on the inner wall of the second crushing chamber (36).

8. The hazardous solid waste recycling pretreatment equipment according to claim 7, characterized in that: The grinding and grading mechanism comprises a grinding chamber (45), a grinding chamber (45) is arranged at the middle and lower part of the inner side of the rear end processing box (9), the top of the grinding chamber (45) is communicated with the second crushing chamber (36), a driving rod (40) is fixedly connected to the middle part of the bottom end of the rotating seat (37), a grinding seat (41) is fixedly connected to the middle and lower part of the driving rod (40), a mounting plate (17) is fixedly connected to the middle and lower part of the rear side of the rear end processing box (9), a driving motor (18) is arranged at the middle part of the top end of the mounting plate (17), and the output end of the driving motor (18) passes through the mounting plate (17) and extends downward, a pulley (21) is arranged at the output end of the driving motor (18) and the middle part of the driving rod (40), and the pulley (21) is connected by a connecting belt, and a protective cover (22) is arranged at the middle and lower part of the inner side of the rear end processing box (9).

9. The hazardous solid waste recycling pretreatment equipment according to claim 8, characterized in that: The grinding and grading mechanism also includes a discharge channel (42), the top of the discharge channel (42) is connected to the bottom of the grinding chamber (45), the middle of the bottom end of the driving rod (40) is connected to the middle of the top end of the upper raised seat (46) through a connecting rod (47), the middle and lower inner side of the grinding seat (41) is slidably connected with a mounting rod (30), the bottom ends of the mounting rods (30) are respectively connected to the corresponding positions of the top end of the vibration block (44) near the edge, the mounting rods (30) are each provided with a connecting spring (48), and the middle of the top end of the vibration block (44) is fixedly connected with the lower raised seat (32).

10. The hazardous solid waste recycling pretreatment equipment according to claim 9, characterized in that: The grinding and grading mechanism also includes an annular screen (31), the inner bottom of the grinding seat (41) is provided with an annular screen (31), the middle of the inner bottom of the rear end processing box (9) is provided with a finished product collection chamber (43), the middle of the top end of the finished product collection chamber (43) is connected to the bottom of the discharge channel (42), and the front bottom of the rear end processing box (9) is provided with a discharge door (10).

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