37results about How to "Reduce sinking" patented technology

The invention relates to the technical field of screening equipment, and provides a dewatering screen for sand-mud separation, the dewatering screen comprises a base, a screen box and a vibration motor, the screen box is mounted on the base through a plurality of rubber springs, and the vibration motor is mounted on the screen box; a first-level screen and a second-level screen are arranged in the screen box from bottom to top in a supporting mode, and meshes of the second-level screen are smaller than those of the first-level screen. A first muddy water collecting tank is arranged on the base, and a swirler is further arranged on the base in a supporting manner; a cyclone bottom flow port is located above the feeding end of the second-stage screen, a first slurry pump is arranged on one side of the first muddy water collecting tank, the water inlet end of the first slurry pump is communicated with the first muddy water collecting tank, and the water outlet end of the first slurry pump is communicated with a tangential feeding port of the cyclone. According to the recycling device, small-particle-size gravel in muddy water generated by the dewatering screen is recycled, and resource waste is effectively reduced.

The invention relates to the field of sewage treatment, in particular to a sewage treatment system capable of recycling sulfur based on sulfur autotrophic denitrification, which comprises a pretreatment tank, an aerobic tank, a sulfur autotrophic denitrification reactor, an anaerobic tank and a secondary sedimentation tank which are sequentially connected, and the part of the secondary sedimentation tank containing supernatant mixed liquor is communicated with the aerobic tank; the anaerobic tank contains sulfate reducing bacteria, and sulfate radicals (SO4 < 2->) in the sewage discharged from the sulfur autotrophic denitrification reactor are reduced into S < 2-> by the anaerobic tank under the action of the sulfate reducing bacteria; water containing S < 2-> in the anaerobic tank enters a secondary sedimentation tank, and supernatant mixed liquor in the secondary sedimentation tank flows back to the aerobic tank; sulfur oxidizing bacteria are contained in the aerobic tank, and S < 2-> in the liquid flowing back from the secondary sedimentation tank is oxidized into S < 0 > and S2O3 < 2-> by the aerobic tank under the action of the sulfur oxidizing bacteria. According to the scheme, the problem that more SO4 < 2-> is generated in the current sulfur autotrophic denitrification process is solved, meanwhile, the consumption of electron donors is reduced, and the cost is reduced.

The utility model discloses a stope overlying strata space three-in-one gangue slurry filling system which comprises a ground gangue slurry preparation system, and the output end of a grouting filling pump is connected with the input end of a gangue slurry underground conveying pipeline and the input end of a gangue slurry ground conveying pipeline. The output end of the gangue slurry underground conveying pipeline is connected with the input end of the low-position grouting filling pipe and the input end of the adjacent-position grouting filling pipe, the output end of the adjacent-position grouting filling pipe is connected with the input end of the adjacent-position grouting drill hole, and the output end of the gangue slurry ground conveying pipeline is connected with the input end of the separation grouting drill hole. According to the utility model, gangue slurry is filled into the caving zone through the low-position grouting filling pipe by utilizing the slurry filling control system, the gangue slurry is filled into the fissure zone through the adjacent grouting drill holes, and the gangue slurry is filled into the separation zone in the bent sinking zone through the separation grouting drill holes. Under the condition that normal production of a working face is not affected, the gangue slurry is safely and efficiently filled into an overlying strata space in a large-scale and low-cost mode.

The utility model relates to a shield launching stage forming segment, and relates to the technical field of shield construction, the shield launching stage forming segment comprises a launching bracket arranged in a tunnel and a plurality of coaxially arranged annular segments, a reaction frame is arranged at a tunnel portal, a reference ring is fixedly connected to the side, facing the interior of the tunnel, of the reaction frame, and the reference ring and the annular segments are coaxially arranged; a plurality of positioning plates are arranged between the annular duct piece close to one side of the reference ring and the reference ring, the positioning plates are arranged around the circumferential surface of the reference ring, first fixing assemblies used for fixing the positioning plates between the annular duct piece and the reference ring are arranged on the positioning plates, and second fixing assemblies are arranged between every two adjacent reference rings; and the same calibration channel steel is arranged among the multiple annular pipe pieces, third fixing assemblies used for fixing the calibration channel steel to the multiple annular pipe pieces are arranged between the calibration channel steel and the annular pipe pieces, and connecting assemblies used for connecting the annular pipe pieces and the tunnel are arranged between the annular pipe pieces and the tunnel. The method has the effect that the annular duct piece in the shield launching stage is kept in the true circle state as much as possible.

The utility model relates to an automatic dust cleaning structure of cement rotary kiln burner, including cement rotary kiln burner structure, is provided with air cannon automatic dust cleaning pipe fitting structure at the top of cement rotary kiln burner structure, air cannon automatic dust cleaning pipe fitting structure includes the dust cleaning main pipe set between the cylinder structure and anchor fastener at the top of cement rotary kiln burner structure, the dust cleaning spray head body structure of uniform distribution setting on the dust cleaning main pipe upper portion and the air cannon gas transmission pipeline connected in the dust cleaning main pipe rear end and the air cannon gas transmission pipeline connection air cannon generating device. This structure can clean the top dust in time in operation, reduces the dust of burner center line subsidence under the adverse environment of burner, improves the clinker section burning quality and reduces the damage of burner protection layer caused by artificial cleaning, guarantees the normal operation of burner, ensures the stable production of kiln section burning system, improves the production economic benefits.

The invention relates to an interbody fusion cage and a preparation method thereof, and relates to the field of orthopedic implantation, the interbody fusion cage comprises a vertically placed cylindrical fusion cage main body and a pore structure fixedly connected in an inner hole of the fusion cage main body, and the pore structure is in a lattice net shape. The interbody fusion cage provided by the invention has a bone induction function, so that a good bone fusion effect can be achieved without bone grafting or with a small amount of bone grafting.

This invention relates to the field of coal mining subsidence control, specifically a method for controlling subsidence through chemical modification and expansion of the floor strata. The method includes: determining the extent of the floor failure zone below the coal seam; selecting a certain thickness of strata below the failure zone as an isolation and protection zone; establishing a chemically modified expansion zone below the isolation and protection zone; selecting an expansion chemical agent based on the mineral composition of the strata in the chemically modified expansion zone; constructing directional boreholes in the working face roadway, with the horizontal section of the directional boreholes constructed within the chemically modified expansion zone, and the directional boreholes being constructed in the direction of the cut-out in the working face advancement direction; fracturing the chemically modified expansion zone through the directional boreholes; and injecting the chemical agent into the chemically modified expansion zone through directional grouting boreholes after the working face has passed the horizontal section of the directional boreholes but before reaching the borehole opening. This invention chemically modifies the floor strata to induce expansion, thereby lifting the floor strata to support the goaf, thus reducing the subsidence of the overlying strata and controlling surface subsidence.

The utility model relates to a riverway ecological management floating bed, which comprises a plurality of groups of unit boxes and a plurality of sections of connecting chains, and every two adjacent groups of unit boxes are connected by using the connecting chains, so that the plurality of groups of unit boxes are arranged on the same plane in an extending manner from inside to outside. Wherein the unit box comprises a base, a plant cage and an upper cover, the upper cover detachably covers the top of the base, openings matched with the plant cage are formed in the middle of the upper cover and the middle of the base, the plant cage penetrates through the base and the opening in the middle of the upper cover, and the plant cage is detachably connected with the base in a clamped mode. Aquatic plants are planted in the inner cavity of the plant cage. According to the utility model, the base, the plant cage and the upper cover in the unit box are arranged in a matched manner, so that the aquatic plants can be well fixed when being planted in a water area to be repaired by utilizing the unit box, and the drifting and breaking of the aquatic plants caused by the impact of rainwater, wind power, water flow and the like are reduced.

The utility model discloses a kind of guiding formula arc intervertebral fusion cage sets, it includes: shaft sleeve, intervertebral fusion cage and guide needle, the shaft sleeve includes: first blocking part and second blocking part, the intervertebral fusion cage is housed in the shaft sleeve, the intervertebral fusion cage is configured to rotate radially from the shaft sleeve, the guide needle is configured to pass through the intervertebral fusion cage to guide the intervertebral fusion cage to target position, when carrying out spinal interbody fusion cage fusion, intervertebral fusion cage can be guided to the vertebral body opening of target, is implanted with the rotation to comply with the arc of vertebral body, to avoid injury surrounding nerve root or soft tissue, and reduce the opening area required for operation, reach the requirement of wound range minimization.

The utility model discloses a new three -layer solid wood floor structure, and solid wood floor includes wood base layer, and the wood surface layer of through the glue adhesion connection installation in wood base layer top and through the glue adhesion connection installation in wood base layer bottom wood bottom layer, wood base layer both ends are equipped with the clamping portion and the positioning portion respectively, the middle position of clamping portion is equipped with fixed block, the middle position of positioning portion is equipped with the limit block, the limit block and fixed block butt -joint installation, and positioning portion and clamping portion butt -joint installation, clamping portion includes two groups respectively located fixed block top and bottom clamping top board and clamping bottom plate, and a plurality of groups of air vents are seted up on clamping top board and clamping bottom plate and pass through fixed block. The utility model guarantees the heat of the floor heating system to export to the room fast, has good air permeability effect. And have the effect of slowing down water vapor sinking to the inside in solid wood floor, reduce the influence of humidity that solid wood floor receives.

The utility model discloses an adsorption tower gas distribution device, include: main gas path, gas distribution branch and mineral sieve pipe, one end of main gas path is located adsorption tower outside and is connected with gas source, and the other end is connected with at least two gas distribution branches, and every gas distribution branch is connected with mineral sieve pipe, mineral sieve pipe is buried in adsorbent bed layer, and has gas outlet structure. Reduce the risk of molecular sieve impact, improve adsorption efficiency.

The present application belongs to the technical field of artificial floating island, and particularly relates to an artificial floating island for common tern nesting; the artificial floating island for common tern nesting comprises a foam board, a bamboo pole is fixedly connected to the bottom of the foam board, and a circular groove is formed in the bamboo pole and located at the corner of the foam board; the artificial floating island for common tern nesting further comprises a buoyancy control unit; the present application is characterized in that a plurality of buoyancy control units are uniformly arranged around the foam board, each buoyancy control unit is provided with a No. 1 air bag, the buoyancy of the foam board is changed by changing whether the No. 1 air bag is inflated or not, so as to change the draft of the floating island and adjust the inclination of the floating island, and the risk of sinking and tilting of the floating island is reduced.

The present invention relates to marine production facilities that can be used to create marine production complexes to extract, process and process hydrocarbon feedstocks to produce liquefied natural gas (LNG), wide fraction light hydrocarbons (WFLH) and stable gas condensate (SGC) on the GBS, representing a novel marine hydrocarbon structure GDCPSO (gravity drilling chemical production storage and offloading). The offshore industrial complex comprises a gravitational structure (GBS) on which an upper portion is provided, comprising a drilling facility comprising a drilling rig (10), a torch portion (11), processing equipment (as a module (12)) for feed gas processing and processing, and a living area (13). The GBS accommodates tanks (14, 15, 16) for storing various processed products. The GBS center part (1) is a rectangular prism and is provided with a top plate (3), and the machining equipment is installed on the top plate (3). The GBS projection (2) extends along the side of the central portion (1) and has a vertical outer wall. The GBS center part (1) and the GBS protruding part (2) share a bottom plate (4), and the height of the protruding part (2) is lower than that of the center part (1). The GBS center part (1) has longitudinal and transverse walls (6) forming a cabin, including a ballast tank (17) and a tank (14, 15, 16) containing each processed product. The GBS projection (2) has an inner wall which is perpendicular to its outer wall and forms a ballast tank (17). The drilling machine (10) is mounted on the short end of the GBS central part (1), the cabin (18) below which serves as a drilling well. The preferred design is characterized in that the central compartment of the GBS is formed by a short end wall on one side thereof, including at least one consumable compartment (19), at least one chemical compartment (20) and at least one waste compartment (21). The GBS center part (1) also has an intermediate horizontal plate (5) housing an LNG storage tank (14) and between the intermediate horizontal plate (5) and the bottom plate (4) there are provided longitudinal and transverse walls (6) forming an additional ballast tank (17). The offshore complex is suitable for operation in water areas with ice in the north pole.

The utility model relates to experimental equipment technical field especially relates to a high and low temperature experiment box, its including experiment box body and translation door subassembly, the front side of experiment box body is provided with experiment bin mouth, translation door subassembly includes door body and fixedly connected on the guiding element of experiment box body, through translation door subassembly to experiment bin mouth of experiment box body is opened and shut, relative to the hinge door that opens outward, can effectively reduce the occupation of surrounding space when experiment box opens, avoid the interference with surrounding equipment in the laboratory limited environment etc. space, improved space utilization efficiency, the guiding element of translation door subassembly supports and guides the door body, reduces the subsidence phenomenon due to gravity in the process of frequent on-off of door body, the sealing element connected on the door body is tightly in contact with the front side of experiment box body when the door body blocks experiment bin mouth, forms good sealing effect, improves the sealing performance of experiment box body.

The utility model discloses a stirring assembly and a precision casting slurry stirrer, and belongs to the technical field of slurry stirring devices. The stirring assembly comprises a rotating shaft, and further comprises a plurality of groups of rod bodies which are fixedly connected to the rotating shaft; the piston rod is slidably connected into the rod body, and one end of the piston rod penetrates through the rod body; the spring piece is connected into the rod body, and the spring piece is used for resetting the piston rod; the liquid inlet is formed in the rod body, and the liquid inlet end of the liquid inlet faces the bottom; the liquid outlet is communicated with the rod body, the liquid outlet end of the liquid outlet is located at the top of the rotating shaft, and one-way valves are arranged in the liquid inlet and the liquid outlet; the penetrating end of the rod body abuts against the arc-shaped wall; liquid and particles close to the bottom can be sucked in and then discharged from the upper portion, sinking of the particles to the bottom is reduced, dissolution of the particles is promoted, stirring of slurry is facilitated, and the purity of the slurry is improved.

The utility model provides a D-column structure and a non-bearing type automobile, the D-column structure comprises a D-column inner plate assembly and a D-column outer plate assembly, and further comprises a tail door hinge mounting plate assembly and a floor rear cross beam assembly; a tail door hinge upper supporting plate, a tail door hinge lower supporting plate and a D column reinforcing plate are sequentially arranged on the inner side of the tail door hinge mounting plate assembly from top to bottom, and the lower portion of the D column reinforcing plate extends to the floor rear cross beam assembly. The force transmission path of the D-column structure is improved by arranging the D-column reinforcing plate, matched lap joint between the D-column reinforcing plate and the D-column inner plate is improved by arranging the hinge upper supporting plate and the hinge lower supporting plate, the sinking rigidity of the tail door is improved, the sinking phenomenon of the tail door is relieved, and therefore the problem that the tail door cannot be normally opened due to sinking of the tail door is effectively solved. And even the problems of failure and water leakage of a tail door sealing system, loose tail door state, poor automobile appearance and the like are indirectly caused.

The invention discloses a rotor assembly of a centrifugal granulator, and relates to the technical field of medicine production, the rotor assembly comprises a centrifugal granulator tank body, a rotor swash plate is arranged in the centrifugal granulator tank body, a ventilation gap is arranged between the edge end surface of the rotor swash plate and the inner wall of the centrifugal granulator tank body, and a gravity sensing assembly is arranged at the lower end of the rotor swash plate; a rotating assembly is further arranged at the lower end of the rotor swash plate, the beating vibration assembly is arranged in the centrifugal granulator tank and used for beating the outer wall of the rotor swash plate, and the spraying dust suppression assembly is arranged in the centrifugal granulator tank and used for suppressing flying dust in the air in the vibration process. And the guide circulation assembly is arranged on the outer surface of the centrifugal granulator tank body and is used for guiding the flow direction of atomized water sprayed by the spraying dust suppression assembly and recycling the atomized water, so that the problems that the centrifugal movement of medicines continuously stacked on a disc surface is continuously weakened, and the requirements of larger medicine loading capacity and more uniform granularity cannot be met are solved.

The utility model discloses a high-water-level reservoir bottom one-way drainage device which comprises a water guide pipe, one end of the water guide pipe is connected with a filtering portion, and the other end of the water guide pipe is connected with a one-way drainage valve. The water guide pipe is installed in a reservoir bottom impermeable layer, the end, provided with the filtering part, of the water guide pipe is located in a reservoir bottom foundation, and the one-way drainage valve is installed on the water guide pipe and exposed out of the reservoir bottom. Leakage water in the reservoir bottom impermeable layer is drained through the drainage pipe and the one-way drainage valve, the water level of the reservoir bottom foundation is lowered, the phenomenon of confined water is eliminated, then a bottom plate of the reservoir bottom is prevented from overturning and protruding, the stability of the reservoir bottom impermeable body is improved, the service life of the reservoir bottom impermeable body is prolonged, and the structural safety of buildings in the hub area is guaranteed.

The application relates to the field of building construction, and discloses a pile foundation embedding structure for building construction. In the application, a support column is fixedly connected to the top of a foundation column, a threaded sliding column is rotatably connected to the outer side of the support column, a sliding support ring is slidably connected to the outer side of the threaded sliding column, fixed rotating blocks are fixedly connected to the upper sides of the two sides of the sliding support ring, upper push rods are rotatably connected to the inner sides of the fixed rotating blocks, the upper push rods are connected with upper fastening blocks, the support column is connected with a limiting column, the limiting column is connected with an upper transmission gear, a circular power gear is slidably connected to the lower side of the upper transmission gear, a lower transmission gear is slidably connected to the lower side of the circular power gear, a threaded sliding column is fixedly connected to the lower side of the lower transmission gear, when the upper structure of the pile foundation is heavier, the overall structure will slightly sink, the soil surface will extrude the sliding support ring to rise in the sinking process, the pile foundation can be more tightly fastened, the contact area of the bottom is increased, and the sinking can be reduced.

A power equipment anticorrosive paint preparation device comprises a screening mechanism and a feeding mechanism, supporting legs are arranged below the feeding mechanism and the screening mechanism, a stirring and mixing mechanism is arranged on the right side of the screening mechanism and comprises a tank body, a discharging port of the screening mechanism is connected into the tank body, and a supporting shaft is arranged in the tank body; a stirring motor is fixed to the top end of the tank body, a supporting block is fixed to the supporting shaft, a supporting rod is rotationally assembled on the supporting block, stirring blades are fixed to the supporting rod, and a discharging opening is formed in the bottom end of the tank body; a cleaning mechanism is arranged in the tank body; the cleaning mechanism comprises a supporting ring, the bottom end of the supporting ring is connected with a sprinkler head, the top end of the supporting ring is fixedly provided with a supporting frame, the top end of the supporting frame is fixedly provided with an electric push rod, the top end of the tank body is slidably connected with a supporting pipe, and the supporting pipe is connected with a hose. A heating mechanism is arranged on the right side of the tank. The device is simple in structure and convenient to use.

The invention discloses an autoclaved aerated concrete reinforcing agent which comprises the following components in parts by weight: 20-21 parts of aluminum sulfate, 19-20 parts of sodium hydroxide, 3-5 parts of triethanolamine, 2-4 parts of polyethylene glycol, 2-4 parts of abietate and 40-60 parts of water. The preparation method comprises the following steps: successively adding sodium hydroxide, triethanolamine, polyethylene glycol and abietate on the basis of a heated and dissolved aluminum sulfate solution, mixing, and uniformly stirring to obtain the product. The autoclaved aerated concrete block is designed according to the porous structure characteristic and the hydrothermal reaction mechanism of the autoclaved aerated concrete block, the abietate is added, so that tiny closed holes are generated in a green body so as to achieve the purpose of increasing small pores of the green body, the abietate has a supporting effect on the green body, the sinking of the green body is reduced, and the service life of the green body is prolonged. The addition of aluminate can promote hydration of cement, can generate various aluminum-containing hydration products in autoclaved curing, and improves the strength of a green body, so that the stability of the pouring height can be improved, the out-of-kettle strength of the green body can be improved, and the rejection rate of autoclaved aerated concrete blocks in the green body pouring process can be reduced.

The present application relates to a kind of methods for improving the surface quality of hot rolling vertical roll, including the steps S1, the vertical roll is carried out after being scrapped and the surfacing of roll surface working layer;Step S2, the lower edge of vertical roll is extended 25~35mm;Step S3, the surface roughness of vertical roll lower bearing seat platform and the size tolerance of platform and roll lower shoulder surface cooperation are optimized.The present application can realize the working layer surfacing of scrapped roll reuse, and the cost reduction reaches more than 50%, while, the problem of serious granular defect of ordinary material vertical roll lower machine is solved, and the roll surface quality is significantly improved, so as to extend its in-machine service life, and improve the in-machine life of roll.

The utility model relates to the technical field of pesticide preparations, and discloses a pesticide preparation stirring and emulsifying reaction kettle which comprises a reaction kettle body, a motor is fixedly installed on the upper surface of the reaction kettle body, a rotating shaft is fixedly installed at the output end of the motor, a stirring mechanism is arranged in the reaction kettle body, and the rotating shaft is fixedly installed at the output end of the motor. A promoting mechanism is arranged in the reaction kettle, the fixing sleeve is fixedly mounted on the cambered surface of the rotating shaft, and a toothed plate is fixedly mounted on the cambered surface of the fixing sleeve. According to the pesticide preparation stirring and emulsifying reaction kettle, a motor drives a rotating shaft to rotate, then a toothed plate rotates, teeth on the toothed plate crush raw materials at the bottom end and cooperate with teeth on a toothed ring cylinder to further promote the crushing effect of the toothed plate, then the toothed ring cylinder extrudes the raw materials under the action of a torsional spring in the process of crushing the raw materials in cooperation with the toothed plate, and the raw materials are crushed more thoroughly. The toothed ring cylinder can rotate on the straight rod, so that the possibility that the toothed plate is blocked is reduced, and the phenomenon that the interior of the reaction kettle sinks to the bottom is reduced.

The utility model relates to an external wall internal thermal insulation structure which comprises a rock wool board layer, a bracket, anchor bolts and a protective layer, the inner side of the rock wool board layer is connected with a floor slab and the outer side of a base layer wall body through adhesives, the rock wool board layer is divided into a plurality of boards with the floor slab as a boundary, the bracket is arranged between the adjacent boards and fixedly connected with the floor slab, and the anchor bolts are arranged on the protective layer. The upper end and the lower end of the rock wool board layer are tightly attached to the adjacent boards, each board comprises a plurality of rock wool boards, the rock wool boards are connected with the base layer wall body through anchor bolts, fixing and pressing connecting pieces are arranged between the adjacent rock wool boards of the same board, and the protective layer is arranged on the outer side of the rock wool board layer. According to the utility model, the rock wool board layer is divided into a plurality of plates by taking the floor as the boundary, and each plate is independently supported by the bracket connected with the floor, so that the risk that the rock wool board sinks and falls off is reduced. Meanwhile, a large keel is omitted, cold bridges are reduced, heat conduction inside and outside the building is reduced, and therefore indoor air conditioning and heating loads and energy consumption of the building are reduced.

The invention discloses a calcareous material special for autoclaved aerated concrete and a preparation method thereof, the calcareous material comprises 90-96 wt% of limestone, 2-6 wt% of an iron raw material, 0-2 wt% of gypsum and 0-2 wt% of a silicon-aluminum material, and the calcareous material comprises the following minerals in percentage by mass: 42-55 wt% of f-CaO, 0-3 wt% of C4A3S, 22-45 wt% of the sum of the contents of C2S and C3S, 5-20 wt% of the sum of the contents of C3A and C4AF, 0-1.5 wt% of periclase and 0-2 wt% of gypsum, and the content of other impurity minerals is 0-6wt%. By optimizing mineral components and particularly controlling the content and activity of f-CaO, the content of silicate minerals is ensured, so that the proportion of the mineral components is beneficial to process production and quality control of the aerated concrete; the utilization rate of the calcium raw material is improved and the energy consumption is reduced through low-temperature calcination of a novel dry-process kiln.

The utility model relates to the field of tunnel engineering construction, and discloses a steel fiber concrete tunnel segment preparation device which comprises a feeding hopper, one side of the feeding hopper is fixedly connected with a transverse rod, one end of the transverse rod is fixedly connected with a stand column, and a steel fiber inlet is formed in the feeding hopper. The bottom of the steel fiber inlet is fixedly connected with a machine shell, a vibrator is arranged in the machine shell, the bottom of the machine shell is fixedly connected with a working table, a rotating motor is arranged in the working table, the output end of the rotating motor is fixedly connected with an electromagnet, and the vibrator is rotationally connected into the working table. A plurality of fixing assemblies are arranged on the outer wall of the machine shell. According to the utility model, the device can adapt to actual engineering requirements, can automatically produce steel fiber reinforced concrete pipe pieces with different sizes, and can effectively ensure and improve the quality and performance of the pure steel fiber reinforced concrete pipe pieces by utilizing the universal electromagnetic device and the elastic shrinkage type vibrating platform to control the distribution of steel fibers.

The utility model discloses an environment-friendly composite plastic drainage plate, which relates to the technical field of plastic drainage plates and comprises a drainage plate and a support component, the drainage plate consists of a base plate and a conical boss, and when the conical boss is distributed upwards, the support component is used for providing auxiliary support for filter geotextile laid at the top of the conical boss. By arranging the supporting assemblies, when the conical bosses are distributed upwards, the connecting transverse strips can provide auxiliary supporting for the filter geotechnical cloth, the sinking phenomenon of the filter geotechnical cloth can be effectively reduced, and when the filter geotechnical cloth sinks, a latticed structure formed by the connecting strips shaped like the Chinese character'shan 'and the supporting transverse strips can provide supporting for the sinking filter geotechnical cloth, so that the filter geotechnical cloth is prevented from falling off. And the sinking filter geotextile is prevented from being in contact with the base plate, so that a space is still formed between the sinking filter geotextile and the base plate, and the drainage channel is kept in an unblocked state.

The utility model provides an underground pipeline anti-sedimentation device for municipal engineering, which comprises a base, two supporting columns are symmetrically fixed on the upper end face of the base, vertical positioning columns are constructed at the top ends of the supporting columns, a supporting plate is sleeved between the two positioning columns, a guide pipe is inserted into the top ends of the positioning columns, and the top ends of the guide pipe are connected with the bottom of the base. The supporting column, the positioning column and the guide pipe are hollow, a grouting cavity communicating with the bottom end of the supporting column is formed in the base, and a plurality of grouting holes exposed out of the lower end face of the base are formed in the bottom face of the grouting cavity. According to the municipal pipeline supporting device, the municipal pipeline can be supported to reduce the deformation influence on the municipal pipeline caused by the sinking of the backfill soil, and the backfill soil can be conveniently grouted and reinforced, so that the sinking condition of the municipal pipeline can be further reduced, and the overall using effect is good.

The invention relates to a composite fiber rubber modified asphalt mixture and a preparation method thereof, belongs to the technical field of asphalt materials, and solves the problems in the prior art that the interface bonding strength and compressive deformation resistance are insufficient after an ultrahigh-content rubber modified asphalt mixture is aged. The preparation method comprises the following steps: step 1, adding preheated stone into a preheated mixing pot, then adding glass fibers, and stirring; step 2, adding the rubber modified asphalt into the mixing pot, and stirring; step 3, adding part of mineral powder into the mixing pot, and stirring; step 4, mixing the carbon fibers and the residual mineral powder; and step 5, adding the mixed carbon fiber and mineral powder into the mixing pot, stirring, and discharging to obtain the composite fiber rubber modified asphalt mixture. According to the invention, the interface bonding strength and compressive deformation resistance of the aged ultrahigh-content rubber modified asphalt mixture are improved at the same time.

The application discloses a mask plate and a use method and a mask plate assembly thereof. The mask plate comprises a body part, a plurality of preset areas are arranged at intervals in the body part, and an evaporation opening is arranged in each preset area. The mask plate further comprises a first weight-reducing part, a first supporting part and a second weight-reducing part in the preset area. The first weight-reducing part is arranged around at least part of the edge of the evaporation opening and is in contact with the edge of the evaporation opening. The first supporting part is arranged around the evaporation opening and is located on the side of the first weight-reducing part away from the evaporation opening. The second weight-reducing part is located on the side of the first supporting part away from the evaporation opening and is annular and arranged around the first supporting part. The thicknesses of the first weight-reducing part and the second weight-reducing part are smaller than that of the first supporting part. The mask plate provided by the application can reduce the gap between the mask plate and a precision mask plate, improve the wrinkle between the mask plate and the precision mask plate, and help improve the evaporation quality.