148 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 discloses an octahedral diamond synthesis method which comprises the following steps: preparing raw materials: selecting high-purity graphite powder and a powder catalyst, adding AlCl3 and KBH4 into the graphite powder to obtain graphite mixed powder, mixing the graphite mixed powder and the powder catalyst according to a weight ratio of (2-5): (5-8) to obtain mixed powder, adding a dispersing agent into the mixed powder, and uniformly mixing to obtain the raw materials, wherein the ratio of the dispersing agent to the mixed powder is 0.5: 6; the raw materials are put into a granulator to be granulated, and raw stone particles within 100 meshes are obtained; adding the raw stone particles into a mold, and pressing by adopting a four-column press to obtain a graphite core column; according to the method, in the diamond synthesis stage, the method of pressure subsection slow rising and power subsection slow rising is adopted, a good environment is provided for production of the octahedral diamond, the quality of the octahedral diamond is improved, the crystal form consistency is high, meanwhile, a high-position repeated mode is adopted in the pressure stage, and the performance of the diamond is 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 present invention belongs to the technical field of tunnel seismic testing, and specifically relates to a tunnel seismic simulation testing device and a testing method. The tunnel seismic simulation testing device includes a base, on the top of which an electromagnetic vibration table is fixedly installed, and connecting plates are connected to both sides of the top of the electromagnetic vibration table; lifting components are installed at the four corners of the top of the electromagnetic vibration table, and a pressing component is arranged among the four lifting components; the pressing component includes a frame body and a nylon cloth bag, and the nylon cloth bag is fixed to the bottom of the frame body. Through the lifting components, the present invention can drive the pressing component to descend, so that the bottom of the nylon cloth bag can wrap around the surface of the tunnel model, and then crushed stone particles are filled into the cloth bag, thereby using the crushed stones evenly distributed along the outer wall of the tunnel model in the cloth bag to press the tunnel, which is beneficial to improving the uniformity of the pressure on the tunnel surface during the vibration test, and further beneficial to improving the accuracy of the test.

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 invention discloses a recycled concrete preparing and processing device which comprises a screening box, a feeding port formed in the top of the screening box, a discharging port formed in the bottom of the screening box and an opening and closing door arranged on the rear side wall of the screening box. The crushing assembly is arranged in the middle section of the screening box; the filtering and adjusting assembly is obliquely arranged between the crushing assembly and the discharging opening and is used for filtering powder-cut stone particles of different specifications; the lifting assembly is arranged on the outer side wall of the screening box and is used for repeatedly crushing the stone particles; the filtering adjusting assembly comprises a second net plate fixedly arranged on the inner side wall of the screening box, a first installation part movably arranged at the top of the second net plate, a plurality of second net holes formed in the second net plate and first net holes formed in the first net plate and used in cooperation with the second net holes, and a transmission assembly used for driving the first net plate to rotate is arranged at the bottom of the second net plate.

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 utility model discloses a colored pottery stone concrete terrace anti-cracking structure, and belongs to the field of concrete terrace anti-cracking, the colored pottery stone concrete terrace anti-cracking structure comprises a base layer, the top of the base layer is fixedly connected with an adhesion layer, the top of the adhesion layer is fixedly connected with a damp-proof layer, and the top of the damp-proof layer is fixedly connected with a heat preservation layer; the painted pottery stone concrete layer and the steel wire mesh layer are arranged, hollowing in the painted pottery stone concrete layer is reduced through the steel wire mesh layer, painted pottery stones in the painted pottery stone concrete layer replace part of gravel particles, the overall specific gravity can be effectively reduced, and the painted pottery stone concrete layer is endowed with the characteristic of rich color changes; a proper amount of anti-cracking steel fibers are introduced into the colored pottery stone concrete layer, and then the anti-cracking steel fibers are embedded into the plastomer to play a bridging effect, so that the tensile stress resistance is greatly improved, the local fracture instability phenomenon is reduced, the problem that a traditional concrete terrace is prone to cracking generally is solved, and practicability is improved.

The invention discloses a modeling method for a discrete element calculation model of a ballast track structure under the action of a dynamic load, and relates to the technical field of numerical simulation. Comprising the following steps that firstly, geometric parameters of a ballast track and physical and mechanical characteristics of ballast stone particles are collected, and a finite element analysis model is established; and train load and frequency parameters are set, and displacement variables of the ballast particles are analyzed. Then, physical parameters of the dirty particles are obtained, the shape coefficient of the dirty particles and the ballast particles is calculated, and then the effective contact area is obtained; and according to the effective contact area and the environmental parameters, the bond strength is calculated and corrected. And finally, constructing a discrete element calculation model based on the bond strength, dividing the discrete element calculation model into a plurality of grid units, and mapping the bond strength by utilizing visual software to complete the construction of the whole model, thereby effectively integrating the physical and mechanical properties of the particulate matters and environmental influence factors, and obviously improving the analysis precision and reliability of the track structure.

The invention relates to the technical field of waste utilization, and particularly discloses a novel composite material and a shortcut construction device.The novel composite material comprises soil particles and gravel particles; the volume ratio of a single soil particle to a single gravel particle is (2-3): 1; the mass ratio of the soil particles to the gravel particles is (1-1.5): 1. According to the novel composite material and the shortcut construction device, waste soil resources can be used for building a temporary shortcut in a large engineering project, utilization of waste soil is effectively improved, use of concrete is reduced, the engineering cost is reduced, and the construction efficiency is improved.

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 invention discloses a rock slice particle video segmentation method, a related method and a related device, and the method comprises the steps: merging the obtained to-be-recognized multi-channel rock slice sequence image data into a video, and obtaining to-be-recognized rock slice video data; the multi-channel rock slice sequence image data to be identified comprises a single polarized light image and a plurality of orthogonal polarized light images; inputting the rock slice video data to be identified into a rock particle segmentation model to obtain a plurality of masks; performing similarity calculation based on the masks to obtain a rock slice particle segmentation result; wherein the rock particle segmentation model is obtained by the following steps: collecting sequence image data of orthogonal polarized light at multiple angles from each rock slice image in an obtained rock slice image data set, and merging the sequence image data into a video to obtain a rock slice video data set; and training a preset rock particle segmentation model based on the rock slice video data set to obtain the rock particle segmentation model.

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 invention relates to the field of noctilucent stones, and discloses a noctilucent stone preparation method which comprises the following steps: S1, weighing and mixing raw materials, namely weighing the raw materials in parts by weight, pouring the raw materials into stirring equipment, adding water, and sufficiently and uniformly stirring to form a mixture; s2, mold forming: pouring the mixture into a mold; s3, curing: curing the mold in a suitable environment to form a noctilucent stone blank; s4, demolding, and taking out the primarily formed noctilucent stone; and S5, grinding and polishing are conducted, specifically, machine grinding and polishing treatment is conducted on the noctilucent stone obtained after demolding. The noctilucent stone is added into the aggregate, so that the noctilucent stone pier can absorb light energy and automatically emit light without an external power supply, the continuous light emitting effect in the dark is achieved, energy conservation and environmental protection are achieved, the warning, guiding or decorating functions can be provided at night through the light emitting characteristic, and the safety and visual recognition degree of scenes such as road isolation and landscape marks are remarkably 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 invention discloses a dustproof anti-static artificial terrazzo and a preparation method thereof. The dustproof anti-static artificial terrazzo prepared by the invention is prepared from the following components: quartz stone particles, ceramic particles, cement, modified quartz sand, a dispersing agent, a defoaming agent, sulfhydrylated conductive carbon black, a multi-sulfydryl cross-linking agent, modified polyacrylic emulsion, water and dimethylphenylphosphine. The modified polyacrylic acid emulsion is obtained by polymerizing an acrylate monomer and diphenyl p-styryl phosphine, reacting with 1-[4-(chloromethyl) phenyl] ethanone, reacting with potassium cyanide and ammonium carbonate, and chlorinating and emulsifying; the modified quartz sand is prepared by grafting pretreated quartz sand with 2, 6-bis (tert-butyl)-4-(mercaptomethyl) phenol, reacting with phosphorus trichloride, and then reacting with p-hydroxystyrene; and styrene and butadiene are polymerized on the surface of the terrazzo. The dustproof anti-static artificial terrazzo prepared by the invention has good mechanical, antibacterial and anti-aging properties.

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 invention belongs to the technical field of ore grinding media, and particularly relates to a double-ellipsoid ore grinding medium and a manufacturing method thereof.The double-ellipsoid ore grinding medium comprises a first semi-ellipsoid and a second semi-ellipsoid, the plane of the first semi-ellipsoid is fixedly connected with the plane of the second semi-ellipsoid, and the long axis of the first semi-ellipsoid and the long axis of the second semi-ellipsoid are located on the same straight line; the length of the short axis of the first semi-ellipsoid is c, the length of the semi-major axis of the first semi-ellipsoid is a, the length of the short axis of the second semi-ellipsoid is c, the length of the semi-major axis of the second semi-ellipsoid is b, and blt; a. In the ore grinding process, along with rotation of the ball mill, the double-ellipsoid ore grinding medium is thrown off and impacts ore particles, the gravity center of the double-ellipsoid ore grinding medium deviates to the second semi-ellipsoid, the second semi-ellipsoid faces downwards during falling, the curvature of the second semi-ellipsoid is small, impact energy can be distributed more evenly in a particle bed, the smashing uniformity is improved, the over-smashing phenomenon can be effectively improved, and the service life of the double-ellipsoid ore grinding medium is prolonged. And meanwhile, the crystal penetration fracture degree caused by energy concentration is reduced, and selective dissociation of minerals is facilitated.