184 results about "Concrete recycling" patented technology

The invention discloses a waste concrete preparation system, and relates to the technical field of waste concrete recycling, the waste concrete preparation system comprises a base, a conveying frame is connected to the middle position of the top end of the base through bolts, a jaw crusher is connected to the position, corresponding to one side of the conveying frame, of the top end of the base through bolts, and a tiling conveying mechanism is arranged at the top end of the conveying frame; a transmission gear and a positioning rod are driven to rotate through rotation of a rotating shaft and a conveying belt, and then a transverse rod and an inner barrel are driven to rotate in a material conveying barrel through cooperation of a transmission wheel and a crawler belt, the structure is scientific and reasonable, use is safe and convenient, the tiling conveying mechanism is arranged, and the rotating shaft and the conveying belt are driven to rotate through a driving motor; and a transmission gear and a positioning rod are driven to rotate, then power is transmitted through a transmission wheel and a crawler belt, a transverse rod and an inner barrel are driven to rotate in a material conveying barrel, a material storage groove is moved to the position below a feeding hopper, and waste concrete in the feeding hopper conveniently enters the material storage groove.

The invention relates to the technical field of concrete waste recycling, and discloses a concrete recycling and crushing device based on urban building waste cyclic utilization, the concrete recycling and crushing device comprises a treatment box assembly, the top of the inner side of the treatment box assembly is provided with a crushing assembly, the treatment box assembly comprises a box body, and screening outlets are formed in the two sides of the box body; a magnetic separator is installed at the bottom of the treatment box assembly, a collecting box is connected to the bottom of the treatment box assembly, a screening mechanism is arranged on the inner side of the treatment box assembly, the crushing assembly crushes concrete waste, and the crushing assembly drives the screening mechanism to conduct step-by-step vibration screening on the crushed concrete waste during operation. And large-volume crushed concrete waste is discharged from the screening outlet, and small-volume crushed concrete waste enters the collecting box after being screened step by step.

The utility model provides a residual concrete recovery device, which belongs to the technical field of concrete recovery, and comprises an inclined upward auger provided with a feed port and a discharge port, a screen arranged on the inner bottom wall of the auger and arranged along the length direction of the auger, and a knocking component comprising a knocking part and a blocking part, the knocking part is installed on a rotating shaft of the auger, the blocking part is installed on the screen, and when the auger rotates, the knocking part can collide with the blocking part so that the screen can vibrate; according to the utility model, under the continuous turning of the auger, the situation of insufficient filtration caused by adhesion of concrete is avoided; vibration generated when the movable rod impacts the sleeve is transmitted to the screen, particles such as grit blocked in the screen can fall off from the screen under the action of vibration, and blocking of the screen is avoided; by introducing dilution water into the rotating shaft of the auger, when residual concrete is diluted, concrete attached to the auger blades can be washed out.

The invention discloses a separation device for concrete recovery, which comprises a separation box, the interior of the separation box is rotatably connected with a filter cartridge, and the bottom of the separation box is communicated with a discharge base; the number of the anti-blocking assemblies and the number of the driving assemblies are both multiple, and the periphery of the outer side of the filter cylinder is fixedly connected with a linkage cylinder through the driving assemblies; and the auxiliary filtering assembly is located in the filtering cylinder, and the other end of the auxiliary filtering assembly is in transmission connection with a transmission assembly. According to the device, through mutual cooperation of the anti-blocking assembly, the driving assembly and the linkage cylinder, in the rotating process of the filter cylinder, waste blocked in the filter holes can be cleared away, the hollow state of the filter holes is kept, and therefore the concrete separation efficiency is effectively improved, and the service life of the filter cylinder is prolonged; and through mutual cooperation of the auxiliary filter assembly and the transmission assembly, the filter cartridge can be assisted to separate different amounts of concrete, so that the separation efficiency of the solid waste concrete is improved.

The invention discloses a method for recycling and reusing road concrete, and relates to the technical field of concrete recycling, the method integrates service environment perception and an intelligent dynamic regulation and control mechanism, and effectively breaks the adaptive bottleneck of a traditional process to climatic difference demolitions; through deep coupling modeling of environmental parameters and aggregate characteristics, crushing process parameters can be dynamically optimized along with the service history of raw materials, and the performance stability of the recycled aggregate in a freeze-thaw / salt-wet alternating scene is remarkably improved; and an attention mechanism is introduced to strengthen correlation mapping of extreme climate characteristics and process parameters, so that grading adjustment better conforms to microscopic damage characteristics of the material.

The invention discloses a smashing device for mechanical engineering, and particularly relates to the technical field of smashing, the smashing device comprises a shell, a transfer assembly is fixedly connected to the right side of the upper end of the shell, a smashing assembly is fixedly connected to the front end of the transfer assembly, moving assemblies are fixedly connected to the left side and the right side of the shell, and a screening assembly is fixedly connected to an inner cavity of the shell. A conveying assembly is fixedly connected to the bottom of the right side of the screening assembly. According to the smashing device for mechanical engineering, the screening assembly is arranged to be matched with the moving assembly, so that concrete can rapidly slide on the screening assembly through vibration, the situation that fine particles or wet materials adhere to a screen is reduced, and the possibility of blockage is reduced; and through the arrangement of the transfer assembly, the screened materials can be transported, so that the screened materials are put into the crushing assembly again, large concrete blocks can be crushed again, the concrete recycling quality is further improved, and different particle size requirements are met.

The invention discloses a coarse and fine aggregate screening device for building concrete recycling, and belongs to the technical field of building construction. The screening assembly comprises end plates which are symmetrically arranged, a through hole is formed in the middle of each end plate, a plurality of guide holes which are evenly distributed in the circumference are formed in the outer side of each through hole, screening rods are arranged in the guide holes, the ends of the screening rods are located in the guide holes, and a plurality of traction assemblies are arranged on the portions, on the outer sides of the guide holes, of the end plates. The multiple traction assemblies are arranged in a staggered mode, each traction assembly comprises an arc-shaped rack, an arc-shaped groove is formed in the end plate, the arc-shaped racks are slidably connected into the arc-shaped grooves, a driving gear is arranged on the outer side of each arc-shaped rack, the driving gears and the arc-shaped racks are arranged in a meshed mode, and a driving motor is arranged on the end plate. And the driving motor is fixed on the end plate. According to the technical scheme, the problem that in the prior art, due to the fact that screen meshes of a screening device are blocked, use is inconvenient is solved.

The invention relates to the technical field of asphalt concrete recycling, in particular to an asphalt concrete recycling and crushing device which comprises a treatment box, two crushing rollers are rotationally connected to the upper portion of the inner wall of the treatment box through two first rods, and a feeding pipe fixedly communicates with the top in the treatment box; and the kneading mechanism comprises a first inclined plate fixedly connected to the inner wall of the treatment box, the first inclined plate is located below the two crushing rollers, the inner wall of the treatment box is in sealed sliding connection with a second inclined plate, a circular groove is formed in the lower end of the second inclined plate, and a kneading disc is arranged on the inner wall of the circular groove. According to the old asphalt concrete crushing device, the kneading mechanism is arranged, so that in the process that a second inclined plate moves above a first inclined plate, a kneading disc can rotate while moving, crushed old asphalt concrete is kneaded, the stress strength of the old asphalt concrete is reduced, and mineral aggregates in the old asphalt concrete are kept complete and are not prone to being crushed; and the asphalt can also be removed by rubbing the old asphalt adhered to the mineral aggregate.

The utility model relates to a full-automatic crawler belt feeding crusher, and belongs to the technical field of waste concrete recycling, the full-automatic crawler belt feeding crusher comprises a crusher main body and a conveying belt located on one side of the crusher main body, and the discharging end of the conveying belt is located above a feeding port of the crusher main body and used for conveying concrete into the crusher main body; the conveying belt comprises a first conveying belt and a second conveying belt, the first conveying belt is in a horizontal state, the second conveying belt is obliquely arranged, the second conveying belt is located between the first conveying belt and the crusher main body and is connected with the first conveying belt and the crusher main body, and an adjusting part is arranged on the crusher main body; the adjusting piece is used for adjusting the inclination angle of the second conveying belt. The concrete crushing device has the effect of improving the safety of concrete crushing.

The utility model relates to the technical field of concrete recycling, in particular to a concrete gravel cleaning and recycling device. The concrete gravel cleaning and recycling device comprises a cleaning box, the interior of the cleaning box is sequentially divided into a liquid return cavity, a slurry cavity and a mounting cavity through two partition plates, and supporting frames are fixedly mounted at the top ends of the two partition plates; the control box is mounted at one corner of the top end of the cleaning box; the cleaning cylinder is obliquely erected on the supporting frame, a plurality of through grooves are formed in the cleaning cylinder, a first screen is embedded in the through grooves, a spiral impeller is rotationally installed in the cleaning cylinder, a protective cover is erected on the supporting frame, and a spraying assembly is embedded in the protective cover; the two groups of sand guide frames are symmetrically mounted in the slurry cavity, a screen frame is fixedly mounted at the top ends of the two groups of sand guide frames, a second screen is embedded in the screen frame, and a stirring assembly is mounted between the two groups of sand guide frames in the slurry cavity. The concrete gravel cleaning and recycling device has the advantage of being efficient in cleaning and screening.

The invention discloses environment-friendly residual concrete recycling treatment equipment for civil construction, and relates to the technical field of civil construction, the environment-friendly residual concrete recycling treatment equipment comprises a device box body, a material feeding port is formed in the upper end of the device box body, a material discharging port is formed in the bottom of the device box body, and a grinding box body is fixedly mounted in the device box body; through the synergistic effect of the crushing rollers and the conical grinding rollers which rotate in the opposite directions, efficient multi-stage treatment of residual concrete is achieved, it is ensured that large concrete blocks are rapidly crushed into uniform fragments through gear meshing transmission of the crushing rollers, and the conical grinding rollers and the grinding cavity form a gradually-changed extrusion gap during rotation to cooperate with size control of a discharging opening, so that the crushing efficiency is improved. Compared with traditional single-stage crushing equipment, the structure has the advantages that the treatment efficiency is improved by about 40%, the ground particles are better in gradation and can directly serve as recycled aggregate to be used for preparing low-grade concrete, and secondary processing energy is reduced.

The application discloses a kind of deep foundation pit shotcrete fast slipform construction equipment, it is related to foundation pit construction equipment technical field, including construction locomotive, drive arm structure and sliding formwork, drive arm structure is set in construction locomotive front side, sliding formwork is installed in drive arm structure end, sliding formwork includes outer frame plate, inner plastering flat plate and sand pump, opening is set in outer frame plate, and installation groove one is opened in lower part, inner plastering flat plate is fixedly arranged in installation groove one, and collection inclined plane is opened in inner plastering flat plate middle part, and preformed surface is opened in inner plastering flat plate lower part, and material retaining groove is opened between preformed surface and collection inclined plane.The application is used by construction locomotive to control sliding formwork, so it is more convenient to handle operation to deep foundation pit inner wall surface, and through sliding formwork internal structure can automatically complete excess concrete recycling and recess filling, to greatly improve wall surface quality and reduce subsequent cleaning work.

The present invention discloses an asphalt concrete block crushing device, which relates to the field of concrete recycling technology. The device comprises a base, a crushing piece is fixedly installed on the end of the base, and a protective ring is fixedly installed on one side of the base. The inner wall of the protective ring is clamped with a screening component, and the end of the screening component is connected to the crushing piece. The metal parts in the concrete block are screened out by the screening component. The asphalt concrete block crushing device effectively separates metal from concrete through the screening component, thereby reducing metal pollution and ensuring the purity of the material. At the same time, through magnetic separation, the efficiency of metal recovery can be improved, ensuring that more metal materials are extracted, and further improving the economic value of reuse.

The application discloses a material-saving and anti-splashing material distributing machine, and relates to the technical field of building construction equipment, in particular to a material-saving and anti-splashing material distributing machine. The application aims at preventing concrete splashing and collecting concrete during the pouring process of the concrete of the sandwich beam and the concrete of the first layer structure plate. A horizontal supporting arm is installed on the rotary support, a bottom support is connected to the lower end of the supporting frame for bottom support, a conveying pipe for transporting concrete is arranged at the bottom of the supporting frame through the front end of the supporting arm, a recycling groove pipe for collecting concrete is arranged on the supporting arm, the recycling groove pipe is through with the conveying pipe, and a rotating paddle for shunting concrete when the concrete pump stops is arranged at the port of the recycling groove pipe. The recycling groove pipe is added to the traditional material distributing machine for concrete recycling, and the rotating paddle is added at the conveying pipe and the recycling groove pipe to shunt the concrete flow in the conveying pipe when the pump stops, so that the concrete is guided and collected, and the concrete splashing is prevented.

The invention provides a concrete waste recovery system. The concrete waste recovery system comprises a treatment box assembly and a first treatment assembly; the treatment box body assembly comprises an inlet box, the inlet box is fixedly communicated with a crushing box, the crushing box is connected with a grinding box, the inlet box is connected with a protection box, the protection box is connected with symmetrical L-shaped plates, and the symmetrical L-shaped plates are respectively connected with a bottom plate; a convergence cover is connected in the grinding box, and two outlets are formed by the grinding box and the convergence cover; the first processing assembly comprises a main motor, and the inlet box is connected with the main motor. The invention relates to the technical field of concrete recovery, in particular to a concrete waste recovery system. Aiming at the defects in the prior art, the concrete waste recovery system is developed, the concrete waste can be conveniently extruded and crushed for multiple times, iron metal materials are separated out, then extruded small blocks are crushed again, and finally, the crushed small blocks are ground into small particles, so that subsequent reutilization is facilitated.

This invention provides a method for recycling concrete slabs from building demolition, relating to the technical field of concrete recycling from building demolition. The method includes the following steps: sequentially cutting the reinforced concrete slab obtained from building demolition, performing rust removal and rust inhibition treatment on the reinforcing steel, vacuum pressure impregnation treatment, and surface treatment; wherein the vacuum pressure impregnation treatment includes sequentially performing degassing, injecting impregnating material and allowing the impregnating material to penetrate the internal pores of the reinforced concrete slab, and curing treatment. The concrete slabs from building demolition treated by this method possess the comprehensive advantages of maintaining structural integrity, long-term stability of the reinforcing steel-concrete interface, dense and strengthened matrix, and integration of the decorative surface with the structural body.

The present application provides a kind of anti-erosion technology for controlling unevenness of concrete recycling by homogenization, which controls by selecting the index of uniformity and stability of raw material quality; makes the workability guarantee rate of concrete increase by mix proportion optimization to make each component uniformly distributed in concrete; adopts construction technology including but not limited to reasonable mixing, strengthens flat warehouse, scientific vibration and fine troweling, timely and effective protection and maintenance and other measures to control the uniformity index of concrete; achieves the uniformity of each part of the internal coarse and fine aggregate distribution of surface layer concrete, the uniformity of particle size, gradation, hardness difference, bone glue ratio, compressive strength, compactness, density and hardness and other indexes, makes the scale of surface concave-convex unevenness of over-flow surface concrete under the action of silt abrasion due to the material performance difference of each part of the internal concrete, which does not exceed the flatness and streamline of anti-erosion requirement, achieves the purpose of anti-erosion.

The utility model discloses a concrete truck tail material recycling system which comprises a recycling pool, a material guide plate is installed on one side in the recycling pool, the material guide plate is installed in an inclined mode, a filter screen is arranged at the lower end of the material guide plate, a material lifting mechanism is arranged between the material guide plate and the filter screen, and the material lifting mechanism is connected with the recycling pool. The lifting mechanism comprises a supporting shaft rotationally connected with the recycling pool. The concrete recycling device has the beneficial effects that by arranging the material lifting mechanism, concrete flushed off by water can enter the recycling pool along the material guide plate, in the process of flowing along the material guide plate, a driving motor in the material lifting mechanism drives a supporting shaft to rotate, the supporting shaft can drive a material lifting frame to rotate, and the material lifting frame is located between the material guide plate and a filter screen; the fallen concrete can be driven to impact on the filter screen through rotation of the lifting frame, slurry is moved to the back end of the filter screen through force generated by impact, and gravel is blocked by the filter screen and vertically falls, so that the gravel and the concrete can be quickly separated, and the treatment efficiency is improved.

This utility model relates to the field of wet concrete recycling technology and discloses a processing device for wet concrete recycling, including a recycling bin. A drive assembly is fixedly installed on one side of the bottom of the recycling bin, and a hollow transmission gear meshes on one side of the drive assembly. A centrifugal filter screen is fixedly installed on the top surface of the hollow transmission gear, and a drain pipe is provided through the other side of the bottom of the recycling bin. This processing device for wet concrete recycling, through the arrangement of the centrifugal filter screen and crushing assembly, allows wet concrete to be fed into the centrifugal filter screen. An external power source is connected, and servo motor A drives the rotating gear to rotate, which in turn drives the hollow transmission gear and the centrifugal filter screen to rotate, centrifuging and dewatering the wet concrete. Servo motor B drives the crushing rod and auger rod to reverse, crushing the wet concrete for easy recycling. After processing, the valve is opened, and the auger rod accelerates the discharge of the wet concrete through the hollow transmission gear and the discharge pipe, facilitating discharge and preventing blockage of the discharge pipe.

The utility model discloses road concrete recycling and crushing equipment, and relates to the technical field of concrete recycling, the road concrete recycling and crushing equipment comprises a storage vehicle and a crushing assembly, the crushing assembly is used for crushing road concrete blocks, two first electric push rods and a water pump are arranged on the crushing assembly, and the output ends of the two first electric push rods are fixedly provided with a cover body; the cover body is located above the storage trolley, and a U-shaped guide plate is fixed to the outer side of the bottom of the cover body. The two first electric push rods are used for pushing the cover body to move downwards, so that the cover body covers the top of the storage vehicle, in this way, when road concrete is crushed and discharged through the crushing assembly, concrete particles and dust are difficult to overflow and are stored in the storage vehicle as much as possible, and when the storage vehicle is full of the crushed concrete, a water pump is started to spray water out along a spray head on a U-shaped pipe; and dust falling treatment is carried out on air in a cover body above the storage vehicle, so that dust overflowing during storage vehicle replacement is reduced, and interference of concrete crushing to the surrounding environment and workers is reduced as much as possible.

The utility model discloses a concrete waste slurry recovery system which comprises a raw slurry tank, a clear water tank, an active agent tank, a slurry preparation tank and a finished product tank, the slurry preparation tank is respectively communicated with the raw slurry tank, the clear water tank and the active agent tank through pipelines, the finished product tank is communicated with the slurry preparation tank through a pipeline, and a pump body for providing conveying power is arranged on the pipeline. Waste slurry obtained after sand and stone separation of concrete waste water is stored in the primary slurry tank, then the waste slurry, clear water and an active agent can be introduced into the slurry preparation tank to be mixed, the clear water can reduce the concentration of the waste slurry in the period, and the active agent stimulates the activity of cement; and the mixed liquid in the slurry preparation tank is introduced into the finished product tank and can be directly recycled as a production raw material of concrete, so that the recycling rate is higher, additional cost of filter cake treatment is not generated, and the waste slurry recycling cost is effectively reduced.

The utility model relates to the technical field of recycling treatment devices, and discloses a recycling treatment device for construction waste recycled concrete, which comprises a treatment bin, a feeding hopper is fixedly mounted on the top surface of the treatment bin, a plurality of supporting legs are fixedly mounted on the bottom surface of the treatment bin, a PLC (programmable logic controller) is fixedly mounted on one side of the treatment bin, and a plurality of supporting legs are fixedly mounted on the other side of the treatment bin. A recycling assembly is arranged on the top face of the treatment bin and used for recycling metal substances, and the treatment bin, a feeding hopper, supporting legs, a rotating cylinder, a fixing ring, a limiting hole, a connecting plate and a fixing frame which are arranged are used in cooperation, so that the effect of recycling recycled concrete can be achieved; the concrete recycling device is simple in structure and convenient to use, metal substances in concrete can be screened out, the moving speed of the concrete and the metal substances is reduced through the arranged rotating cylinder, meanwhile, the concrete can be turned over, the situation that the metal substances cannot be magnetically attracted by magnets due to excessive concrete is avoided, the recycling treatment effect of the metal substances is improved, and use is convenient.

The utility model relates to the technical field of crushing equipment, and discloses a concrete recycling and crushing device which comprises a jaw crusher body, the top of the jaw crusher body is fixedly connected with a discharging box, a feeding port is formed in the discharging box, the top end of the interior of the feeding port is fixedly connected with a plurality of iron chains at equal intervals, and the iron chains are connected with the jaw crusher body. A discharging opening and a discharging opening are formed in the bottom of the discharging box, a metal net plate is fixedly connected to the interior of the feeding opening, two rotating rollers are rotationally connected to the position, located above the metal net plate, in the feeding opening, and a conveying belt is connected to the outer surfaces of the two rotating rollers in an attached mode; a plurality of electrified plates are fixedly connected to the surface of the conveying belt in an embedded mode at equal intervals. By arranging the electrified plate capable of rotating in the feeding port, when the bristles rotate at a high speed, static electricity can be generated on the surface of the electrified plate, and when the conveying belt drives the electrified plate to rotate in the feeding port, dust in the feeding port can be adsorbed on the surface of the electrified plate.

The utility model discloses a processing device for recycling and blending waste concrete into asphalt, which comprises a concrete screening box and a mixing processing box, a conveying structure is arranged between the concrete screening box and the mixing processing box, and a rotary fan and a fixing screw are mounted on the outer wall of the front end of the concrete screening box. A motor shell is mounted at the top of the mixing processing box, a silane coupling agent inlet is formed in one side of the motor shell, a waste outlet is formed in the outer wall of the concrete screening box, a first-stage screening net, a second-stage screening net, a third-stage screening net and an inclined plate are mounted in the concrete screening box, hydraulic rods are arranged at the two ends of the first-stage screening net, and hydraulic cylinders are arranged at the two ends of the second-stage screening net. And a variable frequency motor is installed in the motor shell, a stirring shaft is connected to the bottom of the variable frequency motor, a heating block is installed on the inner wall of the concrete screening box, waste concrete materials with different particle sizes can be effectively separated through the screening net, and the uniformity and consistency of the materials are guaranteed.

The invention discloses a treatment method and device for construction waste of sea-crossing bridge construction, and belongs to the technical field of construction waste recycling, the device comprises a concrete recycling module, a magnetic collecting tank, a cyclone separator, a water filtering tank, a water tank and other assemblies, and classified recycling and treatment of reinforcing steel bars, gravel, sand, cement paste and waste water are achieved through the multi-stage separation technology. The treatment method comprises the steps that after the construction waste is crushed, steel bars are separated through the magnetic collecting tank; the remaining concrete material enters a rotating second cavity, and graded separation of gravel, sand and cement paste is achieved through gradient rotating speed and inclined spraying; and finally, solid-liquid separation is completed through a cyclone separator, and the wastewater is recycled or discharged after reaching the standard after being treated. The method realizes efficient resource utilization of the construction waste, has the characteristics of modularization, low cost, environmental protection and the like, and is suitable for green construction of large-scale projects such as sea-crossing bridges and the like.

This invention belongs to the technical field of concrete recycling devices, specifically a device for recycling residual concrete from precast pile formwork. The device includes a frame, a 3D vision inspection unit, a vertical water jet array, a lateral water jet assembly, an adjustment unit, and a controller. The 3D vision inspection unit acquires 3D point cloud data of the formwork, identifying the cross-sectional profile, sidewall tilt angle, and residual concrete distribution. The controller, based on the residual height distribution, controls the adjustment unit to adjust the spray angle and distance of the lateral water jets, moving the impact point along the sidewall height direction to achieve full-height coverage impact. The controller also optimizes the impact direction based on the sidewall tilt angle, ensuring the water jet is perpendicular to the sidewall surface, and compensates for energy attenuation through a pressure adjustment mechanism. The vertical and lateral water jets simultaneously impact corner areas, with visual recognition assisting in avoidance control to protect bolt holes and reinforcing ribs. This invention can adapt to different formwork specifications, achieving uniform cleaning of the entire sidewall height, eliminating cleaning dead zones, and saving water and energy.

The utility model discloses cutting equipment for waste concrete recovery, and particularly relates to the field of waste concrete recovery, which comprises a bottom plate, four ends of the bottom of the bottom plate are fixedly connected with fixing rods, the upper end of the bottom plate is fixedly connected with a support frame, a connecting rod is movably arranged in the support frame, and the bottom of the connecting rod is provided with a connecting assembly. The connecting assembly comprises a sliding groove, the sliding groove is formed in the bottom of the connecting rod, one end of the interior of the sliding groove is fixedly connected with a driving motor, one side of the driving motor is in transmission connection with a lead screw, the outer wall of the lead screw is in threaded connection with a sliding block, the sliding block is installed in the sliding groove in an embedded mode, and the bottom of the sliding block is fixedly connected with a fixing block. Through the arrangement of the connecting assembly, the cutting machine can be moved left and right to be adjusted, waste concrete can be conveniently cut and recycled according to actual requirements, the cutting machine does not need to be moved back and forth to complete cutting operation changing, and the device is more convenient to use.

The utility model provides a concrete recycling and separating device which comprises a box body, a discharging opening is formed in one side of the top of the box body, a conveying mechanism is arranged on the inner side of the box body, a cleaning mechanism is arranged at the top of the conveying mechanism corresponding to the interior of the box body, and the cleaning mechanism comprises a fixing plate and a water pipe. The conveying belt is driven by the conveying rollers to operate, concrete and sand powder can be conveyed to the right side, meanwhile, the concrete and the sand powder are filtered through the conveying belt and the filtering holes, concrete blocks can be washed and cleaned through the water pipe, the water spraying opening and the brush, the sand powder is separated from the concrete blocks, and therefore separation of the sand powder is completed; meanwhile, sand powder can be prevented from drifting away from a discharging opening and the like, and influences on the environment and operators are avoided; and sand powder and water can be separated through a filter screen, a servo motor, a screw and a cross rod drive a push plate to discharge the sand powder from a discharge port, screening and recycling of concrete and the sand powder are completed, and practicability is high.

The utility model discloses a tunnel concrete spraying device with a concrete recovery function, and particularly relates to the field of concrete recovery, which comprises a main body, an electric cylinder is fixedly mounted on one side of the main body, a flow guide hopper is fixedly mounted at the output end of the electric cylinder, the flow guide hopper is slidably connected to the inner side of the main body, and a support frame is fixedly mounted at the top of the flow guide hopper. The inner side of the supporting frame is rotationally connected with a recycling paddle, a first motor is fixedly installed on one side of the supporting frame, the recycling paddle is fixedly installed at the output end of the first motor, the inner side of the flow guide hopper is rotationally connected with a conveying roller, the outer side of the conveying roller is sleeved with a conveying belt, and a second motor is fixedly installed on one side of the flow guide hopper. The conveying roller is fixedly installed at the output end of the second motor. By arranging the flow guide hopper and the recovery paddle, concrete is pushed into the inner side of the flow guide hopper through the recovery paddle, is conveyed into the feed hopper through the conveying belt, is pumped into the feed box, and can be reused after being secondarily stirred in the feed box.