91results about How to "Effective dust suppression" patented technology

The invention discloses an intelligent mining atomization dust settling device. The device consists of control boxes, dust sensors, pyroelectric sensors, a remote controller, high-pressure gas water atomizers, adjustable electromagnetic valves, a water and gas supply pipeline and a movable bracket, and is characterized in that the device is regionally matched for use as a whole set, and can be used for automatically detecting the existence of pedestrians and dust concentration, and spraying operation can be automatically started and suspended; the adjustable electromagnetic valves can be used for automatically adjusting water and gas supply according to different dust concentration to achieve different atomization dust settling effects and gradually decrease the dust concentration in a direction far away from a dust source; the movable bracket of the device can conveniently and efficiently move together with a development machine and a belt conveyor. The intelligent mining atomization dust settling device has the advantages that the intelligent mining atomization dust settling device is simple, efficient, scientific, reasonable, water-saving and energy-saving, can be used for controlling dust produced on a fully-mechanized excavating workface within a region to prevent the secondary dispersion of the dust, and effectively performing dust removal and settling operation to improve an operating environment, and is ideal for the fully-mechanized excavating workface.

The invention discloses a one-hole multi-purpose construction method for controlling the impact and gas disaster of deeply buried coal seam. The one-hole multi-purpose construction method includes thefollowing steps that a drilling distance is determined; drilling construction is carried out; a actual stress concentration zone is determined; drilling plugging and gas drainage are carried out; sufficient pressure relief of the coal seam is carried out; and high pressure water injection is carried out. Preferably, the plugging is the first plugging using the expanded capsule, and after the coalseam is fully depressurized, the second complete drilling plugging is performed with sealing agent. According to the one-hole multi-purpose construction method for controlling the impact and gas disaster of deeply buried coal seam, the simultaneous treatment of the deep ground coal seam impact ground pressure and gas disaster can be realized, and the process steps of reasonablely determining thedrilling spacing and the drilling length, the working face drilling pressure relief, the two drilling sealing, the gas drainage, the water injection and the like are adopted, the purpose of multi-purpose, cost reduction and efficiency enhancement are efficiently achieved. The one-hole multi-purpose construction method is simple, easy to operate, can fully utilize the multiple functions of the drilling, and avoids the existing repetitive and wasteful of drilling construction of the existing technology.

The invention discloses a sweeping method and a road cleaning vehicle. The method comprises the steps of sweeping large particles on a road through hair (140) of a sweeping plate (100), wherein the hair (140) is in critical contact with the ground; brushing the ground through a water curtain of a high pressure nozzle (120); collecting sewage and garbage swept and brushed from the ground through an absorbing nozzle. According to the method, the water curtain is used for brushing the ground, so that dust can be lowered down effectively while sweeping; meanwhile, the large particles which cannot be removed by the water curtain can be removed through the hair which is in the critical contact with the ground, and therefore, the hair wearing can be reduced, and as a result, the cost can be saved.

The invention discloses a rapid emergency treatment vehicle for environmental pollution and a using method thereof. The vehicle comprises a vehicle body, four rolling wheels are rotationally installedat the bottom of the vehicle body and are symmetrically arranged in pairs, a cabinet body, a storage battery pack and a dust suction draught fan are fixedly installed at the top of the vehicle body,and a water storage cavity, an installation cavity and a dust collection cavity are formed in the cabinet body. The air purification device is reasonable in design and good in practicability, dust particles in air are adsorbed, filtered and dedusted through the dust suction fan, the dust particles are collected, water mist with negative charges is sprayed out through horizontal rotation and atomization of the multiple spray heads, effective dust falling treatment is conducted on the air, the air purification effect is improved, and the air purification effect is improved. The rapid emergency treatment vehicle is simple in structure and convenient to use, dust in air can be rapidly and effectively removed, atmospheric pollution is reduced, the air quality around the working environment is effectively improved, respiratory tracts of workers and passing pedestrians are not prone to being hurt, and the body health of the workers and the passing pedestrians is guaranteed.

The invention discloses a road cleaning vehicle, and relates to the technical field of environmental sanitary vehicles. The road cleaning vehicle comprises a second-class chassis and a water storage tank which is mounted on the second-class chassis, wherein the water storage tank is connected with a low-pressure pipeline through a low-pressure pump; the low-pressure pipeline is connected with a plurality of spraying tools; an engine driving power taker of the second-class chassis is connected to the low-pressure pump through a countershaft spindle; the water storage tank is connected with a high-pressure pipeline through a high-pressure pump; a secondary engine which is used for driving the high-pressure pump is arranged on the second-class chassis; a high-pressure pipeline control valve is mounted on the high-pressure pipeline; the high-pressure pipeline is connected with a plurality of high-pressure spraying tools. Compared with the prior art, the road cleaning vehicle is provided with a low-pressure waterway system and a high-pressure waterway system which are independent from each other, so that high and low pressure operation requirements can be met at the same time; the city sanitary requirement can be met.

The invention discloses a dry-cleaning and water-washing hybrid solar panel cleaning device. According to the specific structure of the dry-cleaning and water-washing hybrid solar panel cleaning device, two driving bevel gears are arranged on a transverse shaft; two screw rods are parallel; transmission bevel gears are fixed at the front ends of the screw rods; the driving bevel gears and the transmission bevel gears are perpendicular and meshed mutually; through holes are formed in front and rear plates of a tank body; four nuts matched with the screw rods are arranged in the through holes; adriving shaft, a driving gear shaft, a water pipe and a gear shaft are sequentially fixed on left and right side plates of the tank body from front to back; friction wheels are correspondingly fixedat both ends of the driving gear shaft and the driving shaft; a strip sponge used for friction driving is arranged on the friction wheels; a rolling brush is fixed on the gear shaft; and a plurality of atomizing nozzles are fixed on the water pipe. The dry-cleaning and water-washing hybrid solar panel cleaning device disclosed by the invention is novel in structural design as well as simple and convenient to operate; the dry-wet dual cleaning process is achieved and the cleaning effect is good; the energy consumption is low and the recycling of water resources is achieved; and meanwhile, the cleaning requirements of photovoltaic panels of various sizes, heights and inclinations are met.

The invention relates to the field of aluminum ash treatment, in particular to box type integrated cold aluminum ash treating equipment. The box type integrated cold aluminum ash treating equipment comprises a box body, wherein an opening is formed in the upper end of the box body; a box cover is arranged at the opening in the upper end of the box body; a steel framework is arranged on the outer surface of the bottom of the box body; downward supporting legs are arranged at the lower end of the framework; a base is arranged in the box body; a ball mill is mounted on the base; a classified roller sieve is connected to a discharging opening of the ball mill; rolling driving devices are respectively connected to the ball mill and the classified roller sieve; a dustproof hood sleeves the classified roller sieve; a dust removal pipe communicates with the dustproof hood, and is connected to a dust remover; and a dust removal opening is processed on the upper end of the side wall of the box body, and is connected to a dust remover through a pipeline. The box type integrated cold aluminum ash treating equipment disclosed by the invention is high in integration degree, high in treating efficiency, low in environmental pollution and convenient to use.

The invention relates to a downhole quick dustfall method and a downhole quick dustfall device, which are characterized in that a drilling position of a heading is provided with a front-end hole by utilization of a drill; an annular area between a drill rod and the rock wall of the front-end hole is taken as a dustfall area in the front-end hole, and spray which is formed by inlet of compressed air and water together is led into the dustfall area; and the spray is maintained when the drill rod drills simultaneously. The downhole quick dustfall method and the downhole quick dustfall device can maintain using high-pressure blast to quicken normal drilling construction, and simultaneously effectively reduce the discharge capacity of downhole dust, thereby solving the problem of the hazard of the dust on the health of workers and the safety threat of the dust on mines.

The invention discloses environment-friendly rapid dust falling equipment for building construction and a dust falling method, and relates to the technical field of building construction dust falling equipment. The environment-friendly rapid dust falling equipment comprises a box body, and an upper shell, a pair of side plates and a baffle are installed at the top of the box body; a height regulating mechanism is arranged in the shell; and a plurality of first spray heads and second spray heads which penetrate through through holes and are uniformly distributed are arranged on a spray head retainer. The invention further discloses a rapid dust falling method for environment-friendly building construction. Height adjustment can be carried out, higher flying dust can be covered, an air bellow can swing by arranging a cam, a baffle and a return spring, the dust falling range is increased, the dust falling effect is improved, the size of water spray mist particles can be adjusted according to the size of the flying dust by arranging the first spray head and the second spray head of different specifications, dust falling is effectively conducted on flying dust of different sizes, meanwhile, water is saved, and the environment-friendly effect is achieved.

An electrostatic induction-based dust collection and reduction device for a construction site comprises a shell, a dust collection mechanism is arranged in the shell, the dust collection mechanism comprises three glass cylinders, rotating columns are arranged in the three glass cylinders, and silk fibers in contact with the inner walls of the glass cylinders are fixedly connected to the side wallsof the three rotating columns; the inner wall of the shell is fixedly connected with a placement plate, and the three glass cylinders are fixedly connected to the upper wall of the placement plate; adriving mechanism for driving the dust collection mechanism is arranged in the shell; the driving mechanism comprises a heat conduction plate fixedly connected to the upper inner wall of the shell, the lower wall of the heat conduction plate is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a driving shaft, the side wall of the driving shaft is fixedly connected with a driving wheel, and the upper inner wall of the shell is rotationally connected with two driven shafts through bearings. The dust collection and reduction device can achieve a good dust collection effect and prevent dust in the air from affecting the health of people.

A pressure-sensitive triggered spraying device for mine cars is fine in use effect and comprises nozzles. The nozzles are communicated with electric ball valves through pipelines hermetically, the electric ball valves are electrically connected with a main controller through leads, and the main controller is electrically connected with a trigger device through a lead. The trigger device comprises a fixed protective box with an upwards opening, retaining plates are connected to the opening of the fixed protective box, an arch pressure plate is arranged in the fixed protective box, the highest position of the arch pressure plate is located above the opening of the fixed protective box, anti-pop pressure plates are connected to the edge of the arc pressure plate and arranged below the retaining plates, and springs are respectively fixedly connected between each anti-pop pressure plate and the bottom wall of the fixed protective box. A pressure sensitive sensor is fixedly mounted in the fixed protective box and electrically connected with the main controller through a lead, and a trigger button is fixedly connected to the lower side of the arch pressure plate and located above the pressure sensitive sensor to correspond to the pressure sensitive sensor.

The invention provides a tunnel dust suppression system, which comprises a water curtain tube and a circulation water device. The water curtain tube is arranged along the cross section of a tunnel, an opening is arranged at the upper end of the water curtain tube, and one end of the water curtain tube is closed while the other end of the water curtain tube is connected with the circulation water device via a hose; and the circulation water device comprises a water pump, a recycling unit and a filtering unit, the water pump is used for supplying water for the water curtain tube via the hose, the recycling unit is used for recycling water flowing out from the opening of the water curtain tube, and the filtering unit is used for filtering the water in the recycling unit and then providing the filtered water to the water pump. In the scheme, dust suppression can be realized effectively, and furthermore, unnecessary waste to water resources can be avoided.

The invention relates to a coal yard dusting amount prediction method, device and system and a storage medium. According to the method for predicting the dusting amount of the coal storage yard, the obtained real-time environment data and real-time coal chopping parameters are input into a preset dusting amount prediction model, and the corresponding predicted dusting amount is obtained. The preset dusting amount prediction model is generated by training based on historical data of the coal yard, the historical data comprises historical environment data, historical coal chopping parameters andhistorical dusting amount. And a control instruction is generated according to the predicted dusting amount, and the control instruction is transmitted to the watering system. The control instruction is used for indicating the water sprinkling system to sprinkle water according to the corresponding water sprinkling amount. According to the method, the coal yard environment and the dusting condition do not need to be judged in a manual mode to control water spraying amount output, the hysteresis quality of manual judgment of the dusting amount can be eliminated, manpower is greatly saved, thewater spraying efficiency is improved, pre-pollution prevention and control are achieved, and flying dust pollution is reduced.

The invention relates to a flow guiding type ore drawing pond field and an ore drawing method thereof. The ore drawing method is characterized in that a plurality of ore drawing pond fields are made on the surface of a tailing pond dry beach in the dam direction; each ore drawing pond field is composed of two or more ore drawing ponds; each ore drawing pond is composed of a pond wall, a partitiondam and an ore drawing port; the ore drawing port of each ore drawing pond corresponds to one or more or drawing branch pipes; a flow guiding hard dam is further arranged in each ore drawing pond in astaggered manner; and during ore drawing, ore drawing is performed in a method of secondary ore drawing. The ore drawing method has the beneficial effects that by means of the ore drawing method, orepulp can persist in the ore drawing pond field, the surface of the inner dry beach of the ore drawing pond filed is totally covered by the ore pulp, the area of the portion, covered by the ore pulp,of the dry breach is large and can reach 90% or above, the dusting area of the dry beach in the dam is greatly reduced, and an effective dust inhibiting role is played.

The invention discloses a concrete curing device and a tower crane. The concrete curing device comprises a delivery pipe (1) arranged on a tower crane body (8) and a plurality of groups of spraying pipes (2) arranged on a tower crane cantilever and communicated with the delivery pipe (1), wherein at least one group of a plurality of groups of spraying pipes (2) comprises water mist spraying heads for spraying water mist, and the other group of a plurality of groups of spraying pipes (2) comprises water flow spraying heads for spraying water flows. The concrete curing device can flexibly adjust a concrete curing range and can further effectively perform dust fall.

The invention discloses a degradable environment-friendly efficient dust suppressant and a preparation method and use method thereof. The efficient dust suppressant is prepared from the following rawmaterials in percentage by weight: 6 to 10 percent of a water-based degradable emulsion; 1 to 3 percent of modified starch, 0.3 to 0.8 percent of modified cellulose, 0.2 to 0.6 percent of a dispersingagent, 0.1 to 0.5 percent of a wetting agent and 86 to 92 percent of water. The dust suppressant provided by the invention adopts starch, polylactic acid and other water-based degradable materials asmain raw materials, the starch and the polylactic acid can be automatically degraded after reaching the service life, residues polluting the environment cannot be generated, secondary pollution is avoided, and the dust suppressant is an environment-friendly material.

The invention relates to the technical field of solid waste treatment, and discloses solid waste treatment equipment for environmental protection engineering, the solid waste treatment equipment comprises a treatment box with an opening in the top, a first extrusion roller and a second extrusion roller are rotationally arranged on the right side and the left side in the treatment box respectively, and a crushing channel is reserved between the first extrusion roller and the second extrusion roller; a first roller shaft and a second roller shaft are fixedly mounted at the centers of the first extrusion roller and the second extrusion roller respectively; the driving motor operates to drive the driving wheel to rotate, the driving wheel rotates to drive the synchronous wheel to rotate through the first synchronous belt, the synchronous wheel rotates to drive the driving wheel to rotate, the driving wheel rotates to drive the driven wheel to rotate, and when the driving wheel and the driven wheel rotate, the first extrusion roller and the second extrusion roller can be driven to rotate reversely through the first roller shaft and the second roller shaft. And the first extrusion roller and the second extrusion roller rotate reversely so as to extrude and crush the solid waste put from the top opening of the treatment box, and the solid waste is effectively crushed.

The invention discloses a purifying and spraying system and a method for automatic spraying by using the same. The purifying and spraying system comprises a dust concentration sensor, a controller, a breaker, an electromagnetic valve and a sprayer; the dust concentration sensor is connected with the controller and used for detecting the concentration of dust and sending the detected dust concentration to the controller; one end of the controller is connected with the dust concentration sensor, the other end of the controller is connected with the control end of the breaker, and the controller is used for comparing the received dust concentration with the preset dust concentration to acquire a comparison result and sending control signals to the breaker according to the comparison result; the breaker is connected between the electromagnetic valve and an external power supply and used for controlling connection or disconnection of the electromagnetic valve according to the control signals received by the control end of the breaker; and the electromagnetic valve is connected between the sprayer and an external water source and used for controlling connection or disconnection of the breaker.

The invention provides a spraying device for dust fall. The spraying device comprises a circular air pipe, a motor, a circular diameter-variable air pipe and a spraying mechanism, wherein the large-diameter end of the circular diameter-variable air pipe is connected to one end of the circular air pipe, the small-diameter end of the circular diameter-variable air pipe is connected with the spraying mechanism, the motor is a double-shaft synchronous motor, and impellers are respectively connected to rotating shafts on both ends of the double-shaft synchronous motor. The spraying device has the characteristics of thin spraying particle, large mist spraying area, wide range and the like, the dust control range can be changed when a dust source changes, the purposes of onsite purification and secondary vacuum dust removal are realized, and the dust fall effect is obvious.

The invention relates to the technical field of mechanical equipment, and discloses grinding wheel equipment with a dust removal function. The grinding wheel equipment comprises a grinding wheel machine, wherein dust removal equipment is fixedly connected to the bottom of the grinding machine, and two symmetric air suction openings are formed in the top of the dust removal equipment. Two symmetricsuction fans are fixedly installed at the upper end of the inner side wall of the dust removal equipment, and two symmetric guide plates are fixedly installed on the inner side wall of the dust removal equipment. According to the grinding wheel equipment with the dust removal function, sand dust at the upper part of a grinding wheel can be effectively sucked into the interior of the dust removalbox, the sucked dust can be effectively reduced, and the sucked dust can be discharged into a filter from a leakage port through the guide plate, so that the problem that because dust flows through the fan, dust is dispersed is solved. The discharged sand water can be effectively separated and filtered, so that resources are effectively saved, and the problems that two cloth bags are disposed at the bottom of the equipment and are collected through the dust collecting device, the area of the adsorption dust is too small, the structure is simple, and the dust collection effect is poor are solved.

The invention relates to a dust reduction apparatus for a dust discharge port of a peanut harvester, and discloses a dust reduction apparatus which is installed by combining connection plates and a connection piece with an existing harvester, can be cooperatively used alone with the harvester, and is convenient for transformation of a dust discharge port. The dust reduction apparatus is characterized in that: one ends of a plurality of dust inlet pipes are connected with one side of an air inlet hood, the other side of the air inlet hood is open, the plurality of dust inlet pipes are distributed in an equidistant manner, the dust inlet pipes communicate with the air inlet hood, one ends of a plurality of dust reduction pipes are connected with the other ends of the plurality of dust inletpipes in a one-to-one corresponding manner, the plurality of dust reduction pipes are in parallel, the other ends of the dust reduction pipes extend upwards obliquely, a diameter of one ends of the dust reduction pipes is larger than a diameter of the other ends, one side of an air discharge hood is connected with the other ends of the plurality of the dust reduction pipes, the other side of the air discharge hood is open, a cross-sectional area of the air discharge hood is gradually increased from one side to the other side, the air discharge hood communicates with the dust reduction pipes, three dust filtration screens are placed in the dust reduction pipes in an oblique direction, and the three dust filtration screens are distributed in an equidistant manner.

The invention relates to a dust prevention management system for a construction factory shed. The dust prevention management system at least comprises an air circulation unit (100) composed of at least one air circulation device, a filter unit (200), a data collection unit (300) and a data processing unit (400), wherein the filter unit forms the whole or part of a main body of the factory shed andat least comprises a nanofiber membrane filter screen containing the ingredients of silver ions and / or silver nanowires, the at least one air circulation device is provided with at least one nanofiber membrane containing the ingredients of the silver ions and / or the silver nanowires, the data processing unit calculates filtration state parameters of the nanofiber membrane related to air quality parameters on the base of electrical property parameters of the silver structure part of the nanofiber membrane collected by the data collection unit, so that the air quality parameters after filtration are evaluated based on the filtration state parameters. According to the dust prevention management system for the construction factory shed, assessment and control are performed by monitoring of the electrical property parameters of the silver nanofiber membrane.

The invention discloses a highway speed bump. The highway speed bump comprises a speed bump main body; the speed bump main body is made of steel; and the bottom face of the speed bump main body is mounted on the ground by one or more bolts in a locking mode. The speed bump main body comprises a top plate, a base plate and an arc connecting section; the front end and the rear end of the speed bumpmain body are sealed; and the top plate and the base plate are connected by the arc connecting section. An installation cavity is formed between the top plate and the base plate; the installation cavity is internally provided with a round supporting piece; the round supporting piece is the same with the whole speed bump main body in length; the upper end of the round supporting piece is in contactwith the lower end face of the top plate; and the lower end of the round supporting piece is in contact with the upper end face of the base plate. According to the highway speed bump, a better buffering structure is adopted, impact of vehicles can be effectively resisted; the impact of the vehicles drives the round supporting piece to retreat, and therefore water in an inner rubber water storagepipe is pushed out and water outlet is realized; and the impact of vehicles is used for pushing the water out, so that dust reduction on road surfaces is effectively achieved.

The invention discloses coal mine fully mechanized coal mining face end top cutting pressure releasing device and a top cutting pressure releasing method, and belongs to the technical field of coal mine underground mining. The equipment comprises an upper plate, a support bottom plate, a supporting unit, a cutting moving unit and a pushing unit, wherein the supporting unit supports the upper plateto do lifting motion; the cutting unit is arranged between the upper plate and the support bottom plate, a cutting receding opening is formed in the main body upper plate, and the working end of thecutting unit penetrates through the cutting receding opening and extends out of the upper surface of the main body upper plate; the cutting moving unit drives the cutting unit to move and work; and the pushing unit drives the coal mine fully mechanized coal mining face end top cutting pressure releasing device to move. According to the device, on one hand, stable placement can be ensured during top cutting pressure releasing operation, on the other hand, disturbed suspended and exposed cover rock can be effectively supported in the cutting process by supporting the upper plate, a good construction environment is provided, then the suspended and exposed cover rock at the end position can be stably and orderly cut off through the cutting unit, so that concentrated stress is transferred to aninter-roadway coal pillar or a deeper part, and then the mining condition of the working face is optimized.

The invention relates to a fixed intelligent dust suppression system for a coal transportation train. The fixed intelligent dust suppression system is composed of a base, a strut, a connecting ring, across arm, a probe, a motor, a supporting arm, a connecting rod, a through hole, a linkage rod, a through groove, a water tank, an elbow, a booster pump, a water inlet pipe, a three-way pipe, a hose,a branch pipe and a nozzle. The probe integrated with a speed sensor and a distance sensor is installed, the extension width of the supporting arm and the water outlet amount of the nozzle can be automatically adjusted according to the running speed and the loading amount of a carriage, water resources are more efficiently saved on the premise that effective dust suppression is guaranteed, waterresource waste is avoided, and the fixed intelligent dust suppression system is modular and convenient to use. And later maintenance and repair are facilitated.

The invention relates to a sand washing machine which comprises a control circuit A, a high-pressure water pipeline B and a compressed air channel C. The control circuit A is used for controlling theopening-closing states of the compressed air channel C and the high-pressure water pipeline B, and comprises a switching-on state and a switching-off state of a control switch at the tail end of a sand blasting pipe. When the control switch at the tail end of the sand blasting pipe is switched on, a pneumatic operated opening of a two-position five-way pneumatic operated directional valve is subjected to ventilation switchover, a control opening of a regulating valve is connected with compressed air, and at the moment, the normally closed state of the regulating valve is converted into the opened state, and the compressed air channel C is opened; an opening of a pneumatic ball valve is connected with compressed air, and the high-pressure water pipeline B is opened; the control switch at the tail end of the sand blasting pipe is closed, the two-position five-way pneumatic operated directional valve resets, the regulating valve is not connected with control air pressure, and is in the normally closed state, and the compressed air channel C is closed; and a close opening of the pneumatic ball valve is connected with compressed air, and the high-pressure water pipeline B is closed. According to the sand washing machine, by introducing a medium and adding water, dust is suppressed, and moreover, the structure is simple, sand blasting and pipe cleaning are facilitated, and the efficiency is high.

The invention relates to a sealed floor washing sanitation vehicle in the technical field of sanitation. The sealed floor washing sanitation vehicle comprises a tractor head and an on-board controllerarranged on the tractor head, a hollow compartment with a hollow structure and an open lower end, a shower mechanism arranged in the hollow compartment, a mist discharge passage, a filter mechanism and a spray mechanism arranged on the top of the hollow compartment. Not only can not affect the normal walking of pedestrians when washing the floor, but also can remove the dust above the road.

The invention discloses building waste grinding and separating equipment and a separating method, and belongs to the technical field of building equipment. Building waste grinding and separating equipment comprises a box body and further comprises a water tank fixedly connected to the bottom of the box body, and the top of the water tank is communicated with the bottom of the box body; the processing box is connected to the top of the box body in a sliding mode, and a grinding mechanism used for grinding and crushing building waste is arranged in the processing box; according to the building waste grinding and crushing device, dust generated during grinding and crushing of building waste can be effectively cooled, concrete fragments and plastic garbage in the ground and crushed waste can be effectively separated through buoyancy of water in the water tank, and the concrete fragments and the plastic garbage in the water tank can be automatically cleaned after separation; and sewage obtained after separation of the building waste can be filtered and recycled, so that waste of water resources is reduced, and the waste attached to the grinding roller can be effectively and automatically cleaned.