110 results about "Stone particle" patented technology

The invention provides a screening device for premixed mortar production, and belongs to the technical field of premixed mortar production, the screening device comprises a rack and a screening barrel arranged above the rack, and the rack is provided with a driving part used for driving the screening barrel to rotate; the screening barrel is composed of a barrel-shaped frame and a plurality of arc-shaped screening plates, the barrel-shaped frame is rotationally connected to the rack, the arc-shaped screening plates are slidably connected to openings correspondingly formed in the barrel-shaped frame in the radial direction through first springs, and the first springs can make the arc-shaped screening plates tend to approach the center axis of the barrel-shaped frame; convex pins are arranged on the arc-shaped sieve plates, a supporting truss is arranged on the rack, guide grooves allowing the convex pins to slide in are formed in the supporting truss, and knocking pieces used for knocking the arc-shaped sieve plates are arranged on the supporting truss; the possibility that gravel particles rapidly pass through the screening barrel and are crushed due to knocking vibration can be reduced, and the final quality of gravel screening work can be improved.

The invention provides a tourmaline pretreatment and polyurethane sponge integrated production process. The process comprises the following steps: firstly, cleaning and drying tourmaline particles, and ball-milling and crushing the tourmaline particles to 1-10 microns; carrying out surface modification on the powder by adopting a silane coupling agent ethanol solution; mixing and dispersing the modified powder and polyol, adding isocyanate, a foaming agent and a catalyst, and uniformly stirring; the mixture is injected into a mold for foaming, and finally curing and post-treatment are performed to obtain the tourmaline polyurethane sponge. The particle size of the tourmaline is successfully reduced to a micron level through a crushing process and a grinding aid, the particles under the scale can effectively exert the health function of the tourmaline, roughness and discomfort caused by direct use of original particles are thoroughly eliminated, meanwhile, the surface is modified, the particles are perfectly embedded in a sponge base body, and the service life of the tourmaline is prolonged. The final product is very soft and flat in touch, and the unevenness and friction feeling existing in the traditional product mixed with large particles are completely avoided.

The invention provides an ultrasonic vibration crushing and screening integrated device for rock particles, and relates to crushing and screening equipment. The ultrasonic crusher comprises a first ultrasonic transducer, a crushing head and a material cup, the material cup comprises an outer cup and an inner cup, and the two opposite sides of the outer wall of the outer cup are each provided with an upper sliding rod and a lower sliding rod; an ultrasonic screening machine; the turnover mechanism comprises two turnover assemblies, each turnover assembly comprises a lifting block and a guide rail plate, each lifting block is movably connected with an upper sliding rod, a sliding groove is formed in each guide rail plate, and each sliding groove is provided with a V-shaped lateral deviation groove and a guide block; and the driving mechanism enables the two lifting blocks to descend to drive the material cup to descend, and when the lower sliding rod slides to the lateral deviation groove, the upper sliding rod continues to slide along the sliding groove to drive the material cup to turn over, so that crushed rock particles are poured into the screen. The device has the beneficial effects that seamless connection of fine crushing and screening of rock particles is achieved, and the device has the remarkable advantages of being high in product fineness, efficient and low in consumption.

The utility model discloses a gravel recovery system for a sewage pool of a concrete mixing plant, which is characterized in that the tail part of a gravel separator is provided with a blanking striker plate, the blanking striker plate is vertically welded on a shell of the gravel separator, the gravel separator is also welded with a reinforcing steel bar protective net, a spraying pipeline is erected on the reinforcing steel bar protective net, and the spraying pipeline is communicated with the discharging striker plate. The spraying pipeline is erected in the length direction of the sand-gravel separator, and spraying openings corresponding to all levels of propeller blades of the sand-gravel separator are formed in the bottom of the spraying pipeline. Compared with the prior art, the discharging baffle plate is welded on the existing sand-gravel separator to prevent stone particles from splashing in the discharging process, the steel bar protective net is welded on the sand-gravel separator to prevent large particles from falling off from the upper feeding conveying belt, and the spraying pipeline is erected for spraying and cleaning. The sand-gravel separator has the advantages that sand and gravel can be prevented from being solidified in the sand-gravel separator, sewage in the sewage pool can be recycled by the aid of the drainage pit and the sewage return ditch, and water cost is reduced.

The utility model relates to cofferdam device technical field, especially water conservancy construction cofferdam device, including bottom board, the bottom board is hollow annular structure, the top of bottom board is fixed with peripheral fender and inner fender respectively by welding, the peripheral fender is surrounded in the outside of inner fender, fill several inner lining rods between the peripheral fender and inner fender, the surface of inner lining rod is fixed with the inner wall surface of peripheral fender and the surface of inner fender respectively by welding, the inner lining rod is arranged along the equidistance distribution of inner ring wall annular of peripheral fender, still inlaying the reinforcing ring that has been penetrated between several inner lining rods. The scheme will fill the inner lining rod and be fixed with the peripheral fender and inner fender by welding, form the compact combination type structure, this design not only effectively disperses the impact force of water flow, still can fill the sandstone particle through the gap between the inner and outer fender, greatly increase overall weight and compactness, the filling of sandstone not only strengthens the deformation resistance of cofferdam, makes its installation on riverbed more stable.

This invention discloses a soil sampling pretreatment device for landscape design, belonging to the field of soil pretreatment technology. It includes a treatment box containing processing components. In this invention, a flexible material crushing whip achieves efficient preliminary crushing of large soil samples while avoiding damage to hard stones, preventing the inclusion of crushed hard stones in the sample and affecting its overall purity. Simultaneously, the auger's rotation and revolution work together to transport the ground sample to the outer periphery, allowing qualified soil particles to enter the centralized hopper through a connecting pipe, while stone particles are effectively separated, improving the purity of the processed sample. A linkage gear, via a rotating shaft and connecting rod, drives a counterweight to rotate eccentrically. This assists the grinding roller in improving the grinding effect on the soil sample, and the vibration of the grinding roller prevents soil samples from adhering to its outer surface, avoiding residue.

The present application relates to the technical field of geological exploration, and discloses a rock mass compressive strength testing device, which comprises a rack, a working chamber is formed in the rack, a hydraulic cylinder is installed on the top of the rack, the output end of the hydraulic cylinder is located in the working chamber, and a pressing head is installed on the output end of the hydraulic cylinder; a placing table is installed on the bottom of the rack and used for placing a sample; and an automatic placing assembly is installed on the placing table and used for automatically moving the sample to the center of the top surface of the placing table. The present application can automatically adjust the position of the sample, quickly place the sample on the detection position on the placing table, and is safe and reliable to use, and the present application can conveniently clean the surface of the placing table, avoid the surface of the placing table from being covered with rock particles, and is more convenient to use.

The utility model relates to the technical field of scattering devices, and discloses an artificial quartz stone particle scattering device which comprises a scattering box, a round roller is rotationally connected in the scattering box, fixing rings are fixedly connected to the two ends in the scattering box, the two ends of the round roller are rotationally arranged in the two fixing rings in a sleeved mode respectively, and a rotating mechanism for rotating the round roller is arranged in the scattering box. A stirring mechanism is arranged in the round roller, a feeding port is formed in one end of the surface of the scattering box, a hopper is fixedly connected to one end of the surface of the scattering box and arranged on the surface of the feeding port, and a base is fixedly connected to the bottom of the scattering box. According to the quartz stone screening device, quartz stone particles can be screened through the arrangement of the round rollers, meanwhile, quartz stone can be scattered in cooperation with rotation of the multiple stirring rods, the scattered quartz stone is screened, meanwhile, particles of different sizes can be screened when used, and then the using effect of the device is improved.

The utility model provides a strength detection device for stone processing, which relates to the technical field of detection devices and comprises a main body mechanism, a detection mechanism is fixedly mounted at the top of the main body mechanism, and the main body mechanism comprises a group of electric telescopic rods. According to the device, under the cooperation of the main body mechanism and the detection mechanism, after detection is finished, an operator can press down a clamping block, at the moment, the workbench starts to rotate under the driving of a rotating shaft, broken stone particles on the surface of the workbench slide into a collection cabinet below, and the device can rapidly remove the broken stone particles on the working surface; according to the stone detection device, the shutdown cleaning time of the detection device is remarkably shortened, the stone detection efficiency is improved, meanwhile, the whole workbench is inclined, more broken stone particles can be effectively prevented from remaining in the device, abrasion and damage to equipment parts are reduced, the service life of the device is prolonged, the broken stone particles can be prevented from influencing the test result, and the test accuracy is improved.

The utility model relates to the technical field of rice impurity removal, in particular to an efficient specific gravity impurity removal and stone suction device which comprises a box body, a vibrating screen, a feeding mechanism, a dust removal mechanism and a collecting mechanism are arranged on the box body, the vibrating screen is located in the box body and arranged in an inclined mode, a vibrating mechanism is arranged between the vibrating screen and the box body, and the dust removal mechanism is located in the box body. The collecting mechanism comprises a sealing groove, a toothed plate, a telescopic mechanism, a residue collecting box and a collecting box, and the sealing groove is formed in the top end of the box body. According to the structure, through inclined arrangement of the vibrating screen and the action of the vibrating mechanism, heavy stone particles rapidly sink into the residue collecting box by utilizing the specific gravity difference between rice and the stone particles; and light rice is adsorbed into the collecting box by the induced draft fan, effective separation of impurities and rice is ensured, the separating effect is optimized by adjusting the position of the collecting box to be close to the vibrating screen for different types of rice with different weights, and high-precision separation of various types of rice is ensured.

The invention discloses crushing equipment capable of selectively beating according to density. The crushing equipment comprises a box body, a feeding device, a motor A, an air blower, a crushing device, a material distribution chute, a motor B and a crushing hammer body, the feeding device is installed at an inlet of the box body, the motor A drives the air blower to provide a uniform wind field in the box body, particles with different densities are sorted according to the density under the action of wind power, and different materials are crushed by the crushing device installed below the material distribution chutes at different intensities after entering the corresponding material distribution chutes. Different dissociation strengths are selectively adopted for ore particles with different densities, and batch wide-range accurate crushing dissociation is achieved.

The utility model discloses a quartz stone raw material mixing device which comprises a multidirectional mixing mechanism, and an auxiliary material mixing mechanism is arranged on the top surface of the multidirectional mixing mechanism; the multidirectional mixing mechanism comprises a base, a vertical plate fixedly connected to the left side of the top of the base and a supporting rod fixedly connected to the right side of the top of the base, a bearing is fixed to the top end of the vertical plate, and a tank is fixed in an inner ring of the bearing. According to the utility model, two groups of auxiliary material mixing mechanisms are arranged, one group of auxiliary material mixing mechanisms can realize independent mixing treatment of quartz stone particles and auxiliary material particles, the other group of auxiliary material mixing mechanisms can realize independent mixing treatment of raw materials such as resin, toner and the like, and the multi-directional material mixing mechanism is arranged below the two groups of auxiliary material mixing mechanisms, so that the material mixing efficiency is improved. According to the mixing tank, different mixed raw materials enter the tank body to be mixed, meanwhile, the tank body rotates anticlockwise, and the stirring paddle in the tank body rotates clockwise, so that the raw materials in the tank body can be fully mixed.

The invention discloses a mine water inrush and sand inrush disaster early warning method and system based on tracing monitoring. The method comprises the steps that firstly, multi-source heterogeneous monitoring data in a mine potential hazard source area and an associated mine channel are collected in real time; 2, performing noise reduction and standardization processing on the multi-source heterogeneous monitoring data to generate a standardized feature data set; 3, inputting the standardized characteristic data set into a water inrush and sand inrush early warning model, and outputting a water inrush and sand inrush occurrence probability and disaster scale prediction result; fourthly, when the disaster scale prediction result or the water inrush and sand inrush occurrence probability reaches an early warning threshold value, early warning information is generated and sent; the system comprises a data acquisition module, a data transmission module and a data processing and early warning module, wherein the data acquisition module comprises an intelligent rock particle assembly, a multi-sensor integration module, a while-drilling test unit and a time domain reflection monitoring unit. Therefore, according to the design, early warning of mine water inrush and sand inrush disasters can be achieved.

The invention discloses a high-leveling-property dry powder batch-scraping stone-like paint and a preparation method, and belongs to the field of building paints.The stone-like paint is prepared from a high-molecular polymer film-forming component and a stone-like particle component, and the mass ratio of the high-molecular polymer film-forming component to the stone-like particle component is 1: (3-5); according to the present invention, the high-molecular polymer film forming component and the stone-like particle component are uniformly mixed and stirred to obtain the dry powder batch-scraped stone-like paint, the dry powder batch-scraped stone-like paint has characteristics of light self-weight, construction process simplification, simple maintenance and high weather resistance, the batch-scraped drying time of the dry powder batch-scraped stone-like paint is less than 3 h, the bonding strength is 0.2 / MPa after at least five freezing and thawing cycles, and the dry powder batch-scraped stone-like paint has characteristics of good adhesion and good weather resistance. The artificial weathering aging resistance detection result is that the coating does not crack, bulge or peel off within 600h, the pulverization level is 0, the discoloration level is less than or equal to 1, the diameter is 50mm, no crack exists, and the flexibility is good; after the dry powder batch-scraped stone-like paint is scraped into a film, the paint film is smooth, is not easy to be contaminated by dust and is easy to clean; high compactness is achieved, and the ideal leveling effect can be achieved without multiple times of batch scraping or polishing.

The retaining wall construction platform device comprises a plurality of pedal modules which are sequentially arranged between scaffolds on the left side and the right side of a retaining wall formwork, and each pedal module comprises a pedal panel, a scraper mechanism and a width adjusting mechanism. The treading panel comprises a middle plate body and telescopic plate bodies symmetrically arranged on the left side and the right side of the middle plate body, the extending ends of the telescopic plate bodies and the middle plate body are provided with throwing structures used for throwing rubbles and restraining the particle size of the rubbles, and the width adjusting mechanism is arranged in a manner of avoiding the throwing structures and is in transmission connection with the two telescopic plate bodies; the telescopic plate bodies are used for synchronously adjusting the extension lengths of the two telescopic plate bodies; the device is unique in structure and ingenious in design, can effectively solve the problem that in existing rubble concrete retaining wall construction, overproof rubble cannot be intercepted through manual deliberate throwing, and can also effectively solve the problems that in existing rubble concrete retaining wall construction, the surface finishing quality and efficiency are low, and the platform adaptability is poor.

The present application relates to the technical field of stone crushing, in particular to a coal mine crusher, which comprises a collecting frame, a screening unit is placed on the upper part of the collecting frame, the screening unit is used for screening the crushed ore, and the ore meeting the specifications falls and is collected, the present application can meet the two different crushing modes of rotary crushing and pressing crushing of the ore through the setting of the crushing unit, and the rotary crushing and pressing crushing are combined with each other, the ore can be crushed more thoroughly, the ore is also subjected to sinking crushing in the concave box, dust generated by the crushing of the ore can be effectively inhibited, the flying stone particles during crushing can be blocked, the setting of the placing unit can also drive the ore and the crushing unit to generate a reverse impact force, and the crushing efficiency and quality of the ore are effectively improved.

The utility model provides a waste recovery device for prefabricated part production, which belongs to the field of waste recovery and comprises a shell, a crushing component is arranged at the top of the shell, and a conveying and screening component is arranged on the crushing component. The crushing assembly and the conveying and screening assembly are arranged, prefabricated part waste needing to be recycled is placed on the first conveying belt in the using process, the first conveying belt and the jaw crusher are started, the waste is evenly conveyed into the jaw crusher to be crushed, follow-up recycling and reusing are facilitated, and the recycling efficiency is improved. Then the crushed gravel particles fall onto a second conveying belt through the discharging end of the jaw crusher to be conveyed, a motor is started to drive an eccentric wheel to rotate, after the eccentric wheel rotates, a protruding end hits a screen to enable the screen to shake, and the gravel particles enter the screen through conveying of the second conveying belt; and the gravel particles with different sizes are separated through shaking and screening of the screen, and follow-up recycling treatment is facilitated.

The utility model discloses a multi-source desilting sludge treatment system. The multi-source desilting sludge treatment system comprises a feeding device, a crushing device, a roller cleaning machine, a screen and a recycling device. The feeding device is used for conveying desilting sludge with first water content; the crushing device is used for receiving the desilting sludge with the second water content and crushing the desilting sludge with the second water content into sand grains not larger than the first preset diameter size and stone grains larger than the first preset diameter size, and the first water content is larger than the second water content; the feeding device and the crushing device are both connected with the feeding end of the roller cleaning machine, the screen is arranged at the discharging end of the roller cleaning machine, the roller cleaning machine is used for cleaning sand grains and stone grains, and the screen is used for screening desilted sludge and sand grains in the stone grains. And stones in the dredging sludge with the second water content are crushed into stone grains and sand grains through the crushing device, and the sand grains are screened from the stone grains through the screen. The multi-source desilting sludge treatment system can recover and process the desilting sludge with the second water content.

The invention provides sintered serpentine particles, a preparation method, an application method and a negative oxygen ion generator, and belongs to the field of mineral processing and air improvement. The preparation method comprises the following steps: crushing, grinding and sieving natural raw serpentine to obtain serpentine powder; adding a sintering aid into the serpentine powder to obtain mixed powder; atomizing water is used as a binder, the mixed powder is granulated, and a granular blank with the preset particle size is obtained; drying until the moisture content of the particles is less than or equal to 8%, and sintering at the temperature of 1000-1200 DEG C to obtain sintered serpentine particles, so that the negative oxygen ion release capacity of the particles is fully activated, and meanwhile, the adsorption capacity of air pollutants is enhanced; the prepared sintered serpentine particles have stable and lasting negative oxygen ion release capability; the method is applied by preparing a negative oxygen ion generator. According to the high-serpentine-content spherical particles and the negative oxygen ion generator, the negative oxygen ion release capacity is improved.

The utility model discloses a landscaping waste fermentation substrate raw material manufacturing device which comprises a vehicle body, a smashing box and a fermentation substrate raw material storage box are installed on the upper wall of the vehicle body, and a spiral conveyor is installed on the side wall of the smashing box in an inserted mode. The spiral conveyor penetrates through the side wall of the fermentation substrate raw material storage box and is communicated with an inner cavity of the fermentation substrate raw material storage box, one end of a feeding channel is formed in the upper wall of the crushing box, the other end of the feeding channel is communicated with the feeding end of the spiral conveyor, a fan is installed on the side wall of the crushing box, and the output end of the fan is inserted into the feeding channel; a discharging groove is formed in the side wall of the feeding channel, the discharging groove penetrates through the side wall of the smashing box, before leaves and other waste are smashed, stone particles in the waste are screened out through cooperation of the draught fan and the discharging groove, the stone particles are discharged out of the smashing box through the discharging groove, the stone particles are prevented from making contact with smashing blades in the smashing mechanism, and the smashing efficiency is improved. And the blades are prevented from being damaged to influence the waste crushing effect of the device.

The utility model relates to the technical field of sandstone crushing and feeding, and discloses a feeding device for a sandstone crushing vibrating screen, which comprises a conveyor belt and a frame, the conveyor belt is arranged on the inner side of the frame, a base is arranged above the conveyor belt, a drain pipe I is arranged on one side of the base, and a drain pipe II is arranged on one side of the drain pipe I; a water inlet pipe is arranged above the second drainage pipe, a filter plate is arranged in the base and rotationally connected with an impeller, one end of the impeller is fixedly connected with an output gear, the output gear is in meshed connection with a chain, the chain is in meshed connection with an input gear, the input gear is fixedly connected with a motor, and a guide plate is arranged on one side of the filter plate. A fan is arranged above the guide plate; evaporation of water on the surfaces of the gravel particles is accelerated through the wind action, the dewatering efficiency of the gravel particles is improved, and therefore the problem that blocks or clusters are formed due to high water content is solved.

The utility model discloses an auxiliary dismantling device for municipal pipeline replacement, which relates to the technical field of pipeline dismantling devices, and comprises an air pick assembly consisting of an air pick main body and a pick head, and a dustproof intercepting assembly, the dustproof interception assembly comprises an interception unit, a telescopic guide unit and a dust falling unit; the intercepting unit is used for intercepting stone particles splashing upwards; the telescopic guiding unit is used for providing guiding and resetting force for stretching and retracting of the intercepting unit. And the dust falling unit is used for performing spraying and dust falling on dust generated by crushing. By arranging the dustproof intercepting assembly, stone particles splashing upwards can be intercepted through the conical corrugated cover, so that the stone particles are prevented from splashing upwards to the face of an operator and hurting the face of the operator, meanwhile, water mist is sprayed out through a plurality of spray heads to annularly cover a crushing area, dust generated by crushing can be intercepted, and the crushing efficiency is improved. And the dust is prevented from scattering to influence the breathing health of operators.

The utility model relates to a concrete pumping device which comprises a delivery pump, a concrete cylinder is arranged on the delivery pump, the concrete cylinder is communicated with a hopper, the hopper is fixedly connected with a mounting strip, a filter screen is placed on the mounting strip, the hopper is provided with a discharge port, a baffle is hinged to the discharge port, the hopper is fixedly connected with a guide frame, and a material receiving groove is formed in the guide frame. By arranging the mounting strips which are arranged up and down on the inner wall of the hopper, the filter screen is inclined, so that large gravel particles can slide to the discharge port along the filter screen under the action of gravity and fall into the material receiving groove, and the gravel particles can pass through the material receiving groove more quickly and are finally discharged from the material falling groove under the guide of the triangular guide plate at the bottom of the material receiving groove; and therefore, large gravel particles are prevented from being accumulated in the material receiving groove, and subsequent receiving and discharging of the gravel particles are not affected.

This invention discloses a sintered NdFeB magnet and its bluing process, relating to the field of magnet corrosion protection technology. The bluing process includes the following steps: dry polishing of the NdFeB black sheet using a composite polishing medium to remove surface oil, dust, and a dense oxide layer, exposing a fresh active substrate and forming a rough interface; the composite polishing medium consists of stone particles, shell particles, and sawdust; and bluing the polished NdFeB black sheet to induce an oxidation reaction on the substrate surface, generating a blue Fe3O4 protective film. This bluing process achieves a magnetic loss repair rate of up to 1.19%, while simultaneously achieving zero chemical emissions, zero wastewater generation, and replacing expensive controlled atmospheres with zero-cost air. It also fundamentally solves the rigid constraints of process connections caused by wet material overprinting, providing a surface protection solution for NdFeB magnets that combines environmental friendliness, high corrosion resistance, magnetic property repair capabilities, and low cost.

The efficient slag slurry sorting machine comprises a sorting tank, a filtering barrel used for slag slurry sorting is arranged in the sorting tank, a slag pumping assembly is arranged in the filtering barrel, a driving mechanism is arranged at the bottom of the sorting tank, and the top end of the driving mechanism penetrates through the sorting tank and is connected with the bottom of the filtering barrel in an inserted mode. The dust collector is fixedly connected to one end of the residue pumping assembly and used for controlling the residue pumping assembly to pump residues on the inner wall of the filtering barrel, and the adjusting assembly is fixedly arranged on the outer wall of the sorting tank. According to the scheme, the driving mechanism is started to control the filter barrel to rotate, so that the slag slurry can be centrifugally sorted, stone particles and other impurities mixed in the slag slurry can be filtered in the filter barrel to be collected, and the dust collector is started to control the slag pumping assembly to pump and clean impurity waste residues attached to the inner wall of the filter barrel; therefore, the mode of manual cleaning can be replaced, manpower can be saved, and meanwhile, the cleaning effect on the filtering barrel can be enhanced.

The utility model relates to the technical field, in particular to a particle-loss-preventing dewatering well structure adjacent to an existing station, which comprises an existing tunnel and a newly-built foundation pit above the existing tunnel, and is characterized in that a dewatering well body is excavated around the existing tunnel and the newly-built foundation pit, a permeable pipe is arranged in the dewatering well body, and the permeable pipe is communicated with the existing tunnel and the newly-built foundation pit. Gravel, fine sand and sponge are filled between the dewatering well body and the permeable pipe, and a dewatering well limiting assembly is arranged at the top of the dewatering well body. In the process of dewatering underground water on the dewatering well body through the permeable pipe, a multi-stage inverted filter structure formed by the gravel, the fine sand and the sponge is adopted, so that sand particles are prevented from being lost along with water flow, the piping phenomenon is effectively prevented, and the safety and the stability of an existing tunnel are protected.

The oil and gas field gas-liquid mixed transportation pressurizing device provided by the present disclosure relates to the technical field of oil and gas field equipment, and comprises a mixed transportation unit, a rock particle filtering unit is arranged at the top of the mixed transportation unit, a flow guide scraping unit and a cleaning unit are sequentially arranged in the rock particle filtering unit from right to left, a rock particle collecting unit is arranged at the bottom of the rock particle filtering unit, and a limiting auxiliary unit is arranged on the cleaning unit. When the upper mesh or the lower mesh of the interception filter screen is cleaned, the rock particles stuck in the mesh to be cleaned can be pushed out by the cleaning unit first, and then the flow guide scraping unit is used to scrape the interception filter screen, so that the rock particles are cleaned, the situation that the rock particles are pressed into the mesh to reduce the filtering efficiency is effectively avoided, and the rock particles entering the mixed transportation pump to affect the service life of the mixed transportation pump is also effectively avoided.

The utility model discloses a drop type landscape pool, which comprises a pool body, the seat body is arranged in the pool body, and the seat body and the inner side wall of the pool body are arranged at intervals, so that a water storage cavity with an upward opening is formed between the inner side wall of the pool body and the outer side wall of the seat body; the stone grain filtering structure is arranged at the upper part of the inner cavity of the water storage cavity; the first surrounding plate is arranged on the outer side of the seat body, the first surrounding plate and the outer side wall of the seat body are arranged at an interval, so that a protection cavity is formed between the inner side wall of the first surrounding plate and the outer side wall of the seat body, the top of the first surrounding plate is higher than the top edge of the pool body, a water passing opening is formed in the bottom of the first surrounding plate, and the water passing opening is not higher than the top edge of the stone particle filtering structure; and the conveying assembly is used for conveying water in the water storage cavity to the top of the seat body. By means of the structure, when water flows along the surface of the base body and falls to a low position, generated water spray splashing is limited in the protection cavity, the water spray splashing to the ground on the peripheral side of the pool body is avoided, and it is ensured that the ground on the peripheral side of the pool body is dry.

The utility model relates to detection device field discloses a bridge crack detection device, including detection equipment, the front of detection equipment is provided with detection head, the front of detection head is provided with cleaning protection mechanism, the cleaning protection mechanism includes the shell, the upper, lower, left, right side of shell all are set up with the auxiliary mouth, the middle part of shell is provided with the cleaning spare, the cleaning spare includes pull rod, pull rod and shell penetration and sliding connection, the middle part of shell is set up with the cavity, the front end fixedly connected with piston plate of pull rod, the piston plate and cavity piston connect, the middle part of shell penetration and fixedly connected with the air pipe. In the utility model, through setting up the mutual cooperation between shell and detection head and cleaning spare etc. component, makes the device can blow off sandstone particle etc. that adheres to the surface of detection head, to better carry out the cleaning to detection head to prevent the scratch of detection head, more practical.

The invention provides a control method and system for a suspension bridge anchorage open caisson to penetrate through a coarse and round gravel layer. The control method comprises the steps that pebble particles of the coarse and round gravel layer where the open caisson needs to penetrate through are recognized; the three-stage crushing process comprises the following steps: performing a first-stage crushing process by impacting seams of the pebble particles through high-pressure water jet, performing a second-stage crushing process by cutting into pebble cracks through an inserted tooth hob and separating rock blocks, and performing a third-stage crushing process by performing negative-pressure suction on the pebble particles; after the three-stage crushing process is completed on the pebble particles of the coarse round gravel layer, the soil taking depth of the open caisson is predicted; and based on the open caisson soil taking depth, soil taking operation is conducted on the open caisson. According to the open caisson soil taking method, pebble particles are crushed through cooperation of high-pressure water jet and inserted tooth hobs, rock breaking energy consumption is reduced through a water wedge-stress coupling rock breaking theory by means of a pulling-pressing combined stress field, the open caisson soil taking depth is predicted, and the soil taking precision can be accurately controlled.