4069 results about "Dust fall" patented technology

The invention relates to a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. At present, most of urban construction adopting the rigid hardened ground has the problems of dust blowing at a fine day, water accumulation and impermeable ground at a rainy day, no groundwater level supplement, no relief of urban heat island effect, and the like. The invention aims to develop a cement concrete permeable brick, a cement concrete permeable road and production methods thereof. The cement concrete permeable brick is formed by pressing and molding a base material layer and a surface material layer, and both the base material layer and the surface material layer contain cement, sand, stone, water adsorbing resin, asphalt powder, diffusant and a water reducing agent. The production method of the permeable brick is realized by molding the permeable brick by a computer full-automatic building block forming machine; and the production method of the cement concrete permeable road is realized by directly pressing the cement concrete permeable road through a road roller. The invention can achieve the aims of water adsorption, water retention, permeability and practicability, can be widely used for a highway, an airport runway, a roadway, a footway, a square, garden construction, and the like and solve the problem of road icing.

The invention relates to the field of dust fall agents, in particular to an environment-friendly dust fall agent for a coal mine. The environment-friendly dust fall agent enables water mist on the surfaces of dust particles to quickly wet and permeate the insides of the dust particles, dust particle coagulation is quickened, dust particle sedimentation is quickened, and the dust fall agent is biodegradable. The environment-friendly dust fall agent for the coal mine comprises the following raw materials, by mass ratio, 60-100 parts of surface active agents, 5-30 parts of biodegradable high-molecular polymers, 20-60 parts of solvents, 6-20 parts of antifreezing agents and 0.5-4 parts of metal corrosion inhibitors. The dust fall agent is a concentrated solution, the ratio can reach 1: 1000 to 1: 5000, quick dust fall can be achieved, chloride salt is not contained, the agent is biodegradable after being sprayed, and therefore secondary environment pollution is avoided.

The invention discloses a negative pressure suction type dust fall road barrier which comprises a unit body. The unit body is provided with a transmission cavity, a driving cavity and a water storagecavity from top to bottom in sequence, and a water injection hole communicated with the water storage cavity is formed in the unit body. The barrier has the advantages that by means of the airflow effect generated by the rapid passage of vehicles, a wind wheel is driven to rotate circumferentially and quickly, and an a rotating plate coaxially arranged with the wind wheel rotates synchronously; byconverting repellence of an active magnet and a driven magnet and the elastic force of a reset spring into left and right linear motion of an air-tight piston, by means of a one-way air extraction channel, the dust fall channel is in a negative pressure state, by means of a one-way inflatable channel, a booster cavity is in a position pressure state, the dust fall channel under the negative pressure state forms pumping action on external dusty gas, the booster cavity under the positive pressure state performs atomization on water through a three-prong spray channel, the contact area between the dust and the water is expanded, the dust fall effect is improved, air pollution is reduced, and the pedestrian health is protected.

The invention discloses a textile machine dust removal device. The textile machine dust removal device comprises a support, a filter screen and a spinning device; a collection bucket is arranged on the support; the lower end of the collection bucket can rightly cover above the spinning device; a collection pipe which is communicated with a collection chamber of the collection bucket is arranged on the collection bucket; the collection pipe is communicated with an input end of an exhaust fan; the collection pipe comprises an inclined pipe; the inclined pipe is communicated with a straight pipe; the filter screen is arranged inside the collection pipe; the collection pipe at the front end of the filter screen is communicated with a dust outlet pipe; an outlet end of the dust outlet pipe is arranged inside a collection bag; an air blower is arranged outside the left side of a machine frame; the air blower is connected with an air channel which is formed inside the machine frame; an outlet of the air channel is provided with a dust blowing opening. According to the textile machine dust removal device, the structure is simple, dust can be blocked through the filter screen, then the dust falls into the collection bag through the dust outlet pipe, and accordingly collection of the dust is achieved, the clean and tidy degree of a workshop is guaranteed, and meanwhile threat to health of workers from the dust is avoided.

The invention relates to a dust fall agent for water mist dust fall. 0.06-0.2wt% of wetting agent permeation assistant is added to water, wherein the wetting permeation assistant comprises anionic surfactant, or cationic surfactant, or zwitterionic surfactant, or non-ionic surfactant. Because in the dust fall agent of the invention, 0.06-0.2wt% of wetting agent permeation assistant is added to water, thus the surface tension of the water can be reduced, the contact capacity of the water with dust particles is promoted, and solid materials can be soaked by water more easily through the wetting agent permeation assistant, thereby accelerating the wetting permeation velocity of water to the dust particles, accelerating the fall velocity of the dust particles, and reducing the fall time of the dust particles. Thus, the invention reduces the operation time and the operation cost, protects the health and safety of operation personnel, and can be widely applied to water spray, water sprinkling, dust fall and dust suppression of mines, tunnels or roads.

The invention discloses a ground dust suppression device for a construction site, which comprises a base, a support platform, a water tank, a water tank, a rotating disk, a swing pipe, a tooth plate, a lifting sliding sleeve and a lifting sleeve plate. Convenient, use the rotation of the rotating disk to drive the piston to move up and down periodically in the inner cavity of the water tank, and then realize the intermittent spraying of water mist from the atomizing nozzle, saving water resources, and use the electric telescopic rod to make the swing tube can carry out certain The swing of the angle range realizes the swing spraying water mist of the atomizing nozzle, and the spraying range is uniform and there is no dead angle, which can effectively reduce the dust on the ground of the construction site, save time and effort, and improve work efficiency.

The invention relates to a technology and equipment for dedusting mixed oil gas, in particular to the technology and the equipment for dedusting mixed oil gas formed by splitting waste rubber and waste plastic. The technology is characterized in that the oil gas is sprayed and dedusted by same type of oil after being filtered and dudusted; and when dust falls, and oil adhered on the dust is converted into gaseous state from liquid state. The equipment comprises a tower body of which the lower end is provided with an oil gas inlet, wherein the tower body is internally provided with a filteringand dedusting mechanism and a spraying device for same type of oil, and the spraying device is arranged above the filtering and dedusting mechanism; the filtering and dedusting mechanism comprises dedusting rotary cage controlled by a lateral shaft; and the total volume of the filler filled into the dedusting rotary cage under the natural state is smaller than the volume of the dedusting rotary cage. In the invention, the reasonable technology and the reasonable equipment are adopted for dedusting and purifying oil obtained by splitting waste rubber and waste plastic, oil discharging quality and carbon black quality are improved, environmental pollution is lightened, thus providing a new path for solving the increasingly serious energy crisis, so that the technology and the equipment can be widely popularized and used.

The invention discloses a high-efficiency crushing device for waste bricks of building wall materials, which comprises a bottom plate, a crushing frame, a first crushing plate, a first rack, a gear, a second crushing plate, a first connecting rod, a guide rod, a second rack, second connecting rod, disk, crankshaft, motor, first connecting rod journal, second connecting rod journal, first piston rod, second piston rod and nozzle, the present invention is provided with motor, crankshaft, circle The plate, the first connecting rod and the second connecting rod are used to crush waste bricks from top to bottom through the cooperation of the above parts, and the crushing speed is fast. There are guide rods, second racks, gears and first racks. Cooperate with the first crushing plate to crush the waste bricks from the left and right sides, making the crushing more thorough and even, improving the crushing efficiency and reducing the labor intensity of the staff. There are first connecting rod journal and second connecting rod journal , the first piston rod, the second piston rod and the nozzle, through cooperation to achieve continuous water spraying and dust reduction, to avoid affecting the health of the staff.

The invention belongs to the technical field of tunnel construction and particularly relates to a water sprinkling dust-fall device for tunnel construction. The water sprinkling dust-fall device for tunnel construction is convenient to move, easy to operate, small in size and low in manufacturing cost. The water sprinkling dust-fall device for tunnel construction comprises a cart and the like. A supporting plate is vertically connected to the left side of the top of the cart; a water sprinkling apparatus is disposed on the right side of the top of the cart; a water sprinkling part of the watersprinkling apparatus is disposed on the upper portion of the left side surface of the supporting plate; and a driving device is disposed in the position, between the supporting plate and the water sprinkling apparatus, of the top of the cart. The driving device can drive the water sprinkling apparatus to sprinkle water, so that the purpose of dust fall is achieved; and water can be sprinkled without dead angles by moving the cart, so that the effects of convenient movement, easy operation, small size and low manufacturing cost are achieved.

The invention discloses a road sweeping and dust falling device. The road sweeping and dust falling device comprises a bottom plate, a first water tank, a lifting mechanism, a scraper pan, a sweepingroller, a suction and conveying mechanism, a second water tank and dust falling mechanisms. The sweeping roller is arranged at the lower end of the bottom plate, and the scraper pan is arranged on theleft side of the sweeping roller. The lifting mechanism is arranged at the left end of the scraper pan, and a collecting trough is formed in the left end of the lifting mechanism. The suction and conveying mechanism is arranged above the bottom plate, and the suction and conveying mechanism comprises a dust suction cover, a bevel gear B, an incomplete bevel gear, a second rotary rod, a bevel gearC, a threaded sleeve, a threaded rod, a piston and a cylinder. The multiple sets of dust falling mechanisms are arranged at the upper end of the second water tank, each dust falling mechanism comprises an atomizing spraying pipe, a first rotary rod, a water outlet pipe, an arc-shaped spraying pipe and a baffle. The road sweeping and dust falling device is simple in structure and convenient to operate, dust and garbage on a road can be cleaned at the same time, the cleaning efficiency is high, dust falling can be conducted on the air simultaneously, the environment quality is improved, and theaesthetics of municipal roads is improved.

A dustproof type concrete prefabricated block drilling device for building construction comprises a supporting frame, a driven shaft is arranged on the supporting frame in a vertical sliding manner, a cam is fixedly mounted on the driven shaft, a drill bit is vertically arranged at the bottom end of the driven shaft, a wedge block is fixed to the right end of a first sliding rod, the left end of a first limiting spring is fixed to a sleeve on the right side of the driven shaft, and a roller is in abut joint with the wedge face of the wedge block; a right cover plate is hinged to a dust suction pipe, and is located in a dust suction box, a left cover plate is hinged to a dust exhaust pipe, and is located outside the dust suction box, an air suction sleeve is arranged on the dust suction box and communicates with the dust suction box, dust generated during drilling of the dust suction pipe is conveyed to the dust suction box, a piston rod drives a water drawing piston head to vertically move in a reciprocated manner, tap water is sprayed to the drill bit and a concrete prefabricated block through a spraying head, the dust falling and removing effect is further achieved, and the drill bit is subject to water cooling; the temperature of the drill bit is effectively reduced, and the drilling quality is improved.

The invention discloses a self-propelled rust-removal grinding device for rail maintenance and with a dust removal function and relates to the technical field of rail rust removal. The device comprises two symmetrically-arranged walking mechanisms and fan boxes arranged at the upper ends of the walking mechanisms and used for placing fans, and control panels are arranged on the upper surfaces of the fan boxes. According to the device, the walking mechanisms are adopted for achieving self-propelled grinding, the upper surface, inner side and outer side of a rail are synchronously ground, one-time dust removal is achieved, and the dust is thoroughly cleared away; in cooperation with a blowing head, dust can be blown away, and the situation is avoided that since the dust falls on the rail, the application quality of the rail and spraying of an anti-rust solution in the later period are influenced; by adopting a sweeping mechanism, the ground rail is swept, in cooperation with a spray nozzle and a brush roller, the two side faces are sprayed with the anti-rust solution, the anti-dust effect of the rail is improved, and the service life of the rail is prolonged; the device is provided with a solar cell panel, and the cruising capacity during outdoor work is improved, so that the device continuously works.

The invention discloses an automatic sampler for dry and wet deposition of radiation environment, comprising a box, wherein, the top of the box is provided with a rain inductor, the top plate of the box is provided with a deposition collection cylinder and a rain water collection cylinder, a rain water collection bottle is arranged in the box, a communicated rain water distributing pipe is connected between the rain water collection cylinder and the rain water collection bottle and connected with a rain water distributing valve; the rain water collection cylinder is provided with a sealing cover which is connected with the output shaft of a lift/rotation switching mechanism, and the part between the rain water collection bottle and the rain water distributing pipe is sealed. The invention has two functions of collecting rain fall and dust fall, and the single-shaft type switch structure can adapt to any severe outdoor work environments.

The invention discloses a dust suction and dust fall integrated device for a mine shaft. The dust suction and dust fall integrated device comprises a bottom plate, a water tank, a dust fall box, a piston cylinder and a dust suction hood; a bracket is arranged at the upper end of the bottom plate, a motor is arranged on the inner side of the bracket, a threaded sleeve is arranged on the right sideof the motor and fixedly connected with the bracket, the inner side of the threaded sleeve is in threaded connection with a threaded rod, and the end, penetrating through the bracket, of the threadedrod is fixedly connected with the lower end of the dust suction hood; and the upper end of the piston cylinder communicates with the dust fall box, the dust fall box is fixedly mounted on the inner side of the bracket, a rotating rod stretches into the dust fall box, and stirring rods are symmetrically mounted on the rotating rod. According to the dust suction and dust fall integrated device for the mine shaft, the design is novel, the arranged threaded rod drives the dust suction hood to rotate and simultaneously drives the dust suction hood to move up and down, the dust suction range of thedust suction hood is expanded, the dust fall effect is improved, gas after being subjected to dust adsorption is exhausted through an arc-shaped spraying tube, the arc-shaped spraying tube drives an L-shaped spraying tube to rotate, energy can be saved, the atomized water spraying range can be expanded, and the dust fall effect is improved.

The invention discloses an agglomerated cement recycling and crushing device for a building. The device comprises a bottom plate, a crushing frame, a motor, a disc-shaped cam, a first belt pulley, a second belt pulley, a roller, a first connecting rod, a crushing plate, a spring, a third belt pulley, a first rotating shaft, a disc, a second connecting rod, a second sliding block, a second sliding rail, a third connecting rod and a dust falling mechanism. The device is provided with the disc-shaped cam, the roller, the first connecting rod, the spring and the crushing plate, through cooperation of the parts, agglomerated cement in the crushing frame is crushed through the crushing plate, the crushing speed is high, and the labor intensity of workers is relieved. The first belt pulley, a first belt, the third belt pulley, the disc, the second connecting rod and the third connecting rod are arranged, through cooperation of the parts, the crushing frame moves leftwards and rightwards, thus the cement in the crushing frame can be comprehensively crushed through the crushing plate, crushing is more through and uniform, and the crushing efficiency is improved. The dust falling mechanism is arranged, continuous water spraying is realized, dust falling is carried out, and influence on the health of the workers is avoided.

The invention provides a mine dedusting system and method which are suitable for a coalmine underground excavation working face and dust falling required situations with large dust amount. The dedusting system consists of a compressed air adjusting and supplying pipeline, a water supply pressurization adjusting pipeline, a dustfall additive quantitative adding pipeline and a Venturi swirling ejector with a built-in double-fluid atomizing nozzle. In the method, a mixed solution of water with underground pressure no less than 3MPa and dustfall additive and the compressed air with underground pressure of between 0.3 and 0.7MPa are atomized by the double-fluid atomizing nozzle; water mist forms water mist jet flow with swirling strength and rigidness after passing through the Venturi swirling ejector so as to impact, stop and capture underground dust; and the dust-containing air flow is pumped by negative pressure and enters the Venturi swirling ejector, and is continuously impacted with the water mist to form secondary dustfall. The system has the advantages of simple structure and high dedusting efficiency, and is advantageous to reduce the water consumption amount for coal mine underground dedusting.

The invention provides mobile self-cleaning dry dust-collecting and ventilating equipment used in tunnel construction, and belongs to the field of energy-saving and environmentally-friendly electromechanical equipment. In the invention, dust generated in tunnel construction and flue gas generated by an internal combustion engine enter into an equipment body via a dust sucking port under the action of negative pressure generated by a contra-rotating jet fan; firstly large dust particles are separated from water vapor contained in the dust by utilizing a demister; the filtered small dust particles enter a filter system, smoke outside a filter cartridge enters the filter cartridge under the action of differential pressure, meanwhile the dust is obstructed on the external surface of the filter cartridge, and the obstructed dust falls into a dust collecting chamber under the action of gravity; and after the filter cartridge operates for a period of time, part of the filtered dust is still deposited on the surface of the filter cartridge, thus a reverse soot-blowing program is carried out at the moment, firstly a diaphragm valve bank in a certain filter unit is closed, the negative pressure in the filter cartridge is cut off, then a corresponding solenoid valve group is opened, and finally positive air pressure in a pulse soot-blowing tube is released so as to reversely blow off soot towards the interior of the filter cartridge from inside to outside. By utilizing the mobile self-cleaning dry dust-collecting and ventilating equipment, the number of the ventilating equipment in tunnel construction is reduced, the input cost and operating electricity fee of the fan are saved, and the operating environment is improved.

The invention provides a terminal, which comprises a casing, a press key, a fingerprint recognizer and a cover plate, wherein the casing comprises a side edge; the side edge is provided with a groove; the press key is accumulated in the groove; the fingerprint recognizer is partially accommodated in the groove and is electrically connected with the press key; the fingerprint recognizer is provided with a sensing region; the sensing region covers the upper side of the press key; the sensing region is used for sensing the fingerprint of the finger and the position information; the cover plate is arranged on the side edge in a foldable way; the cover plate covers the groove; and the cover plate is provided with a through hole in a way of corresponding to the fingerprint recognizer so that the sensing region is positioned above the cover plate. The terminal provided by the invention has the advantages that the groove is formed in the side edge of the casing; the fingerprint recognizer is arranged on the press key; then, the cover plate is arranged on the side edge of the casing in a foldable way; the cover plate covers the groove; and the problems of cleaning inconvenience and use fault of the fingerprint recognizer due to dust falling into the groove can be prevented through the covering of the covering plate on the groove. In addition, the sensing region is exposed out above the cover plate, so that the recognition area can be increased during the fingerprint recognition by the user; and the fingerprint collection is convenient.

A semiconductor wafer regenerating system is capable of easily and efficiently removing fabricating patterns formed on a semiconductor wafer to enable reuse of the semiconductor wafer. The system, which removes patterns of the semiconductor wafer in a dry manner by using blasting grit, includes a mesh conveyor, a grit blaster, a swinging element, a collecting element, a separating element, and a dust collector. The mesh conveyor transports the semiconductor wafer so that the patterns face upward. The grit blaster is installed above the mesh conveyor and has at least one blasting nozzle for blasting grits toward the semiconductor wafer to remove the patterns from the semiconductor wafer. The swinging element swings the blasting nozzle in a plane perpendicular to a transporting path of the semiconductor wafer along the mesh conveyor. The collecting element underneath the mesh conveyor collects pulverulent bodies including grits, chips, and dusts falling from the mesh conveyor. The separating element is connected to the collecting element to separate the grits and chips from the dusts. The dust collector is connected to the separating element to collect the dusts separated by the separating element.

The invention discloses an environmental protection dedusting device, which comprises a box body, a directional wheel, a universal wheel and a push frame. A garbage bin and a water tank are respectively arranged inside the box body, and a garbage collection box is arranged inside the garbage bin. And the garbage collection box is connected with a sealed bin door through the rotating shaft at the corresponding position on the side of the box body. The upper part of the sealed bin door is connected with a push frame, and the upper part of the garbage bin is provided with a dust filter. The upper part of the net communicates with the outside through the air outlet, and the lower part of the air outlet is provided with a first motor. In the present invention, an atomizing nozzle is provided at the front end of the dust removal device to condense the flying dust in the air into balls and fall to the ground through water mist, and then sweep the condensed dust to the middle position of the bottom of the dust removal device through the cleaning rotary table, and reuse The dust suction device can effectively solve the problem of dust raising during the dust removal process.

The invention discloses an external protective protective shell of a computer host, which comprises a bottom plate, a side plate, a flexible base, a host box, a foam sound insulation layer, an air intake fan, and a muffler plate. Mounting strips are arranged on the side plate host box. The mounting strip is slidably connected to the top column, a spring is arranged between the top columns, the lower end of the side plate is connected with a leg, the hydraulic cylinder is fixedly installed on the lower surface of the bottom plate, and the end of the output shaft of the lower end of the hydraulic cylinder is installed with a horizontal plate. Rollers are installed at the lower four corners. The present invention is simple in structure, easy to use, has good dustproof effect, reduces the noise in the host box, and the spring has a shock absorption effect, which can prevent the external impact force from being directly transmitted to the host box, and protect the host box from being impacted It is also easy to move and locate as a whole, preventing dust from falling into the upper part of the host box, and it has strong practicability.

The invention provides a gas dust-removing and sampling device. The gas dust-removing and sampling device comprises a first shell and a second shell arranged in the first shell, wherein an air inlet is formed in one end of the first shell and the other end of the first shell is a dust exhausting end; an air inlet is formed in one end of the second shell and a filtering sieve is arranged at the air inlet of the second shell; an air outlet is further formed in the second shell; the air outlet penetrates through the first shell. According to the gas dust-removing and sampling device, a second exhausting screw propeller is rotated under the driving of a motor to reduce the pressure in the first shell into negative pressure, so that external gas to be analyzed is pumped into the second shell through the filtering sieve; the gas to be analyzed enters the dust exhausting end from dust falling from the filtering sieve and does not enter the second shell from a gap between the filtering sieve and the second shell, so as to prevent dust pollution of filtered gas and also prevent the dust from being blocked between the filtering sieve and a gas channel in the second shell; the on-line analysis of the gas is easy to realize.