102results about How to "Suppress flying" patented technology

A humidity control and ventilation system for a building with an absorption-type humidity controller includes an air supply passage, air discharge passage and a processing unit. The air supply passage is configured to conduct intake air from an exterior inlet port, which is located at an outside of the building, to an interior outlet port, which is located at an inside of the building. The processing unit is inserted in the air supply passage. The air supply passage includes an intake duct that is located between the processing unit and the interior outlet port, and the intake duct includes a vertically extending section, which extends in a vertical direction to create an upflow of the intake air conducted from the processing unit toward the interior outlet port.

The invention discloses a road dust inhibitor and a preparation method thereof. The road dust inhibitor is characterized in that the raw materials of the road dust inhibitor comprises surface active agents, stabilizers, hydrophilic agents, thickeners, anti-freezing auxiliaries, antibacterial agents and water. The preparation method comprises, firstly, adding an appropriate amount of water into a reactor; secondly, adding the surface active agents and the stabilizers in; thirdly, after the surface active agents and the stabilizers are fully dissolved, slowly adding the hydrophilic agents and the thickeners in and stirring to achieve dissolution; fourthly, adding the anti-freezing auxiliaries and the antibacterial agents in; lastly, adding the residue water in until reaching a designated concentration. By means of the surface active agent, the road dust inhibitor can form a layer of isolating film on the contact surface between dust and air, and the isolating film has high water carry capacities and adhesive performance; by adding a small amount of salt, the road dust inhibitor obtain certain anti-freezing and antibacterial effects.

A laser lift-off device eliminates baneful influence of various dust particles generated from a workpiece due to laser irradiation for the workpiece. A periphery of a carrier platform part (11) of a workpiece carrier platform (10) is provided with an annular wall part (21) consisting of an annular outer wall part (21b) and a top wall part (21a). The carrier platform part (11) is provided with outlets (12) used for connecting with exhaust mechanisms at a plurality of positions. The outlets (12) absorb the air in the annular wall part (21) through tubings connected with the exhaust mechanisms such as pumps, fans, and so on. By using the laser to radiate a workpiece (1), the dust particles ejected along with gas from an edge part of the workpiece (1) towards inner spaces (A) divided by the annular outer wall part (21b) and the top wall part (21a) are discharged from the outlets (12) provided on the carrier platform part (11) through flow of fluid towards the outlets (12).

The invention discloses a wetting agent capable of inhibiting dust flying. The wetting agent comprises 0.05-0.25% of sodium carboxymethyl cellulose, 0.3-1.2% of polyacrylamide, 0.2-0.4% of polyoxyethylene fatty alcohol sodium sulfate, 0.1-0.5% of sodium alpha-alkenylsulfonate, 0.3-1% of corn starch grafted sodium acrylate, 0.08-0.13% of silicone resin polyether emulsion, 0.1-0.5% of dodecyldimethylbetaine, 0.1-0.3% of carboxymethyl chitosan, 0.05-0.1% of dioctyl sodium sulphosuccinate, 0.4-0.6% of ethanediol, 0.2-0.4% of calcium chloride and the balance of water. The sprayed fog drops can quickly capture and wrap the dust particles, thereby increasing the particle settling speed. The sprayed fog drops can be covered on the dust on the coal rock surface and ground surface to prevent secondary flying dust, thereby enhancing the dust removal efficiency.

The invention discloses a composite hygroscopic and moisture-retention type inhibitor for small-particle-size flying dust and a preparation method of the composite hygroscopic and moisture-retention type inhibitor. The composite hygroscopic and moisture-retention type inhibitor comprises 20-30% of high-molecular polymers, 1-5% of hygroscopic agent, 5-15% of xylogen additives and 50-60% of water. The preparation method includes the steps of heating water and a telomere to about 80 DEG C, dropping unsaturated double bond contained vinyl monomers and an initiator respectively with continuous stirring, refluxing for 0.5-1 hour, adding the xylogen additives, the hygroscopic agent and the like, stirring for 20-40 minutes, cooling, and aging to obtain uniform liquid inhibitor. The composite dust inhibitor is high in hygroscopicity, moisture retention property and water solubility and capable of improving air quality and living environment remarkably by effectively inhibiting particles of different sizes on the ground from entering into air.

The invention is applicable to the technical field of laser welding, and discloses a variable-focus laser welding blowing protecting method, a variable-focus laser welding blowing protecting device and variable-focus laser welding equipment with the blowing protecting device. The variable-focus laser welding blowing protecting device is arranged on a side with a focusing lens of a variable-focus laser welding head, is used for restraining smoke and plasmas from flying towards the side with the focusing lens in a variable-focus laser welding process and comprises a connecting support, an exhaust pipe and a gas supplying component for delivering gas to the inside of the exhaust pipe; the exhaust pipe is provided with a hollow inner cavity, a gas inlet and a plurality of exhaust holes; and the exhaust holes are formed in a wall surface, which backs on to the variable-focus laser welding head, of the exhaust pipe. The technical problem that smoke and plasmas which are generated when a variable-focus laser welding technology is applied to work pieces with complex surface structures such as sheet metal parts of a body in white of an automobile affect laser welding quality and welding efficiency greatly is solved.

The invention belongs to the technical field of textile equipment and relates to a highly-efficient cotton fluffer. The highly-efficient cotton fluffer comprises an automatic cotton-feeding device, a cotton-carding device and a cotton-collecting device. Compared with a conventional cotton-feeding device, the automatic cotton-feeding device is more mechanized so that input of manual power is greatly reduced and helps to ensure personal safety of operators and achieve automated cotton-feeding with great safety factor. The automatic cotton-feeding device is connected with the cotton-carding device in order to realize synchronous drive. Double licker-in roller devices and double dust cage devices are employed by the cotton-carding device and used for carding cotton and dedusting twice in one process in order to satisfy requirements for high quality and high cleanliness. The cotton-collecting device located at the tail end adopts a cotton-accumulating drum to automatically collect cotton under drive of a driving belt so that cotton collection without manual labor is realized, thereby greatly saving manpower of a company. Additionally, cost of production and manufacture of the company is decreased. As a whole, the highly-efficient cotton fluffer is advantaged by being reasonable in structure layout, high in working efficiency, great in safety factor of manufacture and production and in cotton cleanliness and few in input of manpower.

A tension type screen comprises tension hooks, a steel wire rope, cold-drawn steel wires, polyurethane and screws. A production technology of the tension type screen comprises the steps of skeleton fabrication, treatment of abrasive blasting, degreasing and coating on a skeleton, mold preparation, detection and correction of a formula, screen pouring, demolding, repairing, inspection and finished product packing. The tension type screen has the advantages of being resistant to abrasion, oil, aging, tear and impact, high in elasticity, strong in shock absorption, large in load support capacity and the like; compared with a metal screen, a polyurethane screen is light in weight, high in screening efficiency, not prone to hole blocking, resistant to abrasion, impact and tear, long in service life, low in noise, convenient to install and high in comprehensive benefits.

The invention provides a wall-attached air duct which comprises a duct body. One end of the duct body is an air inlet while the other end of the same is an air outlet, an air retaining plate is arranged in the duct body, and multiple lateral air outlets are arranged on the duct body spirally and all positioned between the air inlet and the air retaining plate. A tunneling working face provided with a press-in-type ventilation system and a foam or spray dedusting system is adopted in a coal mine; by arranging the air retaining plate inside the duct body, when airflow passes through the air retaining plate inside the duct body, a part of the airflow can be diverted to flow towards the lateral air outlets, the airflow becomes spiral airflow through the lateral air outlets which are spirally arranged to blow to the working face at low speed, fresh airflow blows to the working face at low speed to inhibit dust flying, an air curtain is formed around the working face to stop dust-containing airflow of the working face from spreading outwards and effectively prevent gas from gathering, and the air retaining plate can adjust air quantity. The wall-attached air duct is easy to process and convenient to mount.

The invention relates to a production device, in particular to an energy-saving and environment-friendly factory production device, and aims at achieving the technical purpose of providing the energy-saving and environment-friendly factory production device capable of restraining flying of powdery products. To achieve the above technical purpose, the energy-saving and environment-friendly factoryproduction device is provided and comprises a first installing plate, a second installing plate, a third installing plate, a fourth installing plate, a vibration mechanism, a containing frame, a collecting frame, a handle, a screen plate, a breaking mechanism, an auxiliary mechanism, a solar panel, a storage battery, a dustproof mechanism, wheels, a circular installing plate and a fixing mechanism, and the second installing plate is fixedly connected to one end of the top of the first installing plate. The energy-saving and environment-friendly factory production device achieves the effect ofrestraining flying of the powdery products.

The invention relates to an integrated cleaning trolley with functions of sprinkling cleaning and drying. The trolley includes a suction head, a trolley body and wheels. The upper end of the suction head is provided with a dust suction channel, an air pump is fixed at the upper end of the dust suction channel, the trolley body is arranged on the right side of a water tank, the right end of the trolley body is fixedly provided with a handle, and the wheels are installed at the lower end of the trolley body. According to the integrated cleaning trolley with the functions of sprinkling cleaning and drying, when the air pump is in work, large suction force is provided for the suction head, the suction head can absorb dust in a place where the suction head passes through, dust is transferred into a dust removal chamber through the dust suction channel, late concentrated processing is facilitated, an electric wire is clamped in a hot air cavity through a clamp groove, and maintenance and disassembly can be facilitated. When an air blower works, air from the air blower becomes hot after being heated by the electric wire, the hot air can dry the ground below a hot air cavity, and the situation is avoided that water is accumulated on the ground and pedestrians are easy to slip.

The present invention relates to an improved excellent substrate laminating apparatus and method, which are good for manufacturing liquid crystal display panel. For the vacuum pumping performing of a chamber (2), the opening of a valve (8a) communicating with a vacuum pump (82) is controlled to change the intake resistance of a pipe (81) from high to low, and to suppress an exhaust air stream occurring when vacuum pumping is started. Furthermore, in the process (vacuum venting) for recovering the atmosphere pressure in the chamber (2), a recovery valve (9a) is controlled to change from high to low, the inflow resistance of a gas introduced into the chamber (2), so that the amount of the gas introduced into the chamber (2) at the beginning of the vacuum venting is reduced. Therefore, since the air stream in the chamber (2) can be moderated during the vacuum pumping and the vacuum venting, the stirring up of dust in the chamber (2) and the attachment of the dust to the substrates can be avoided, and high-quality laminated substrates can be provided at a high manufacturing yield.

The invention provides a dust collecting device and an electric cleaner with the same, which can separately store the dust separated from a first centrifugal separating part and the dust separated from a second centrifugal separating part, and abandon the dust at the same time, and can suppress the flying of the dust separated from the second centrifugal separating part when the dust is abandoned. The dust collecting device (27) is provided with a wall part (161) which protrudes out of a separating body (86) and is tightly attached to a housing part (85) under a state of installing the separating body (86) to the housing part (85). The dust collecting device (27) is provided with a dust storing part (165) for storing the dust separated from the second centrifugal separating part (93). The dust storing part (165) is tightly attached to the housing part (85) via the wall part (161) and is zoned between the housing part (85) and the wall part (161).

The invention discloses an environment-friendly blackboard preventing dust pollution. The environment-friendly blackboard preventing the dust pollution comprises a blackboard body and a motor. The upper portion of the blackboard body is fixedly connected with an electrostatic type eraser. The lower portion of the blackboard body is fixedly connected with a dust containing box. The electrostatic type eraser comprises a dust box. A rotating shaft is arranged in the dust box and connected with a piece of eraser cloth. One end of the eraser cloth is connected with the rotating shaft, and the other end of the eraser cloth is connected with a plastic plate. The eraser cloth is a piece of conductive cloth and electrically connected with an electrostatic generator. The rotating shaft is electrically connected with the motor. A touch-pressure switch is arranged on the plastic plate and is in signal connection with the electrostatic generator. According to the environment-friendly blackboard preventing the dust pollution, the physical character that an electrified body attracts tiny objects is utilized, and chalk dust is restrained from flying by controlling the electricity capacity of the eraser; and therefore, the physical health of teachers and students is effectively protected, and the teachers and the students are protected against dust hazards. The environment-friendly blackboard preventing the dust pollution is simple in structure and convenient to operate; and meanwhile, existing blackboards made from various materials can be refitted to be the environment-friendly blackboards preventing the dust pollution, and therefore application and popularization are benefited.

The invention discloses a preparation method of a liquid dust suppressant capable of rapidly forming a film and belongs to the field of dust suppressants. Sodium alginate and kelp cellulose are extracted from kelp respectively, kelp cellulose is grafted with acrylic acid and dimethyl diallylammonium chloride, reactants of sodium alginate and polyvinyl alcohol are compounded after grafting, a surfactant is added after compounding, and the dust suppressant can be obtained. The prepared dust suppressant has the effects of water absorption, permeation and bonding and is mixed with water and then sprayed to a pavement, water molecules in air can be absorbed, a wet and nonvolatile water retention film is formed on the pavement rapidly, the film forming time is 20-50 s, the purpose of dust flying inhibition is achieved, the rapidly formed continuous and complete film can resist wind and rainwater and can have a protection function on the pavement, raw materials of the dust suppressant are environment-friendly and easy to degrade, and no secondary pollution is caused.

The invention provides an electric dust collector. A dust-collecting device of the electric dust collector comprises a structure configuring a primary filter (21) configured in the following manner: in the primary filter (21) provided with a plurality of through holes penetrating through an upstream side surface and a downstream side surface of the primary filter (21), a direction of a central axis and a forward direction of an outer side swirling airflow (61) flowing on the upstream side surface of the primary filter (21) form a second inclined angle which is downward inclined opposite to the forward direction. The central axis is a straight line of connecting an opening center of a first etching hole and an opening center of a second etching hole. Therefore, a declining swirling airflow (61) going toward a direction of a dust-collecting chamber (33) can be generated in the inner circumference of the primary filter (21), so that the dust can be prevented from flying; and blockage of the filter can be prevented.

A conveyor device includes a feed member, a conveyor belt, and a suction section. The feed member feeds a recording medium while in contact with a part of the recording medium. The conveyor belt conveys the recording medium having been conveyed by the feed member. The suction section sucks the recording medium onto the conveyor belt. The conveyor belt includes a first region that is to receive the part of the recording medium and a second region adjacent to the first region. The conveyor belt has a plurality of suction holes in communication with the suction section. The suction holes have a lower opening ratio in the first region than in the second region.

The invention provides a chain saw. A muffler (5) structurally comprises a muffler body (51) and a passage part (52), wherein the muffler body (51) is arranged below an engine (31); and the passage part (52) is extended upwards from the muffler body (51) and is provided with openings on the upper side in front of a chain saw body (3). Accordingly, as exhaust air can be discharged towards the front of the chain saw body (3) and exhaust noise can be transmitted forwards, the exhaust noise capable of being heard by an operator is reduced to further improve the operating environment. In addition, the exhaust air is discharged after passing through the longer passage part (52) extending upwards from the muffler body (51) to cool the exhaust air. Therefore, although a shell (32) made of synthetic resin is usually utilized to cover the chain saw body (3) and an exhaust opening is formed at a position in the shell (32) corresponding to the openings (523, 524) of the passage part (52), the color of a marginal part of the exhaust opening can be prevented from being changed due to the heat of the exhaust air.

The invention discloses a working method of a punching device with a protective structure and for bridge construction. The punching device comprises a device shell, a driving motor, a water pump, a sludge pump and an integrated switch. The driving motor is fixedly installed inside the device shell. A transmission mechanism is installed on the lower portion of the device shell and comprises a rotating rod. The rotating rod is embedded into the middle of the bottom of the device shell through a bearing. A transmission sleeve is fixedly installed on the top of the rotating rod, and a transmissioninsertion block is arranged on the top of the transmission sleeve in an insertion mode. A connecting sleeve is fixedly installed at the bottom of the rotating rod, and a connecting insertion block isarranged at the bottom of the connecting sleeve in an insertion mode. A punching mechanism is installed at the bottom of the connecting insertion block. According to the punching device, due to the fact that polishing and cutting blades are arranged and installed at the bottom of the punching device, the hole forming operation can be conducted by the grinding operation, and the phenomenon that broken blocks generated by drilling splash and cause the harm to constructors is effectively avoided; and transverse fixing beams and transverse moving beams are arranged and can slide to be adjusted, and therefore the hole forming diameter of the device can be flexibly adjusted.

The invention relates to a deodorant dust suppressant and a preparation method, belongs to the technical field of dust suppressants, and provides a deodorant dust suppressant capable of effectively suppressing dust flying and removing foul smells and peculiar smells in dust and a preparation method. According to the technical scheme, the deodorant dust suppressant is prepared from, by weight, 50-70 parts of urea, 5-15 parts of high-molecular water-absorbing resin, 5-15 parts of dispersible emulsion powder, 5-15 parts of polyacrylamide, 5-15 parts of gypsum and a deodorant. The preparation method is used for preparing the deodorant dust suppressant.

The invention provides a crushing device for road construction. With the crushing device adopted, the problems of incomplete dust suppression, small stone splashing, high noise and poor working environment in an operating room in the working process of a conventional road crushing device are effectively solved. According to the technical schemes of the invention, the crushing device comprises a base; a fixed fluted disc is welded to the outer wall of the top of the base; a rotating disc is fixed on the outer wall of the top of the base through a rotating shaft; a water storage tank is fixed tothe outer wall of the top of the rotating disc through screws; a water pump is fixed to the top outer wall of the rotating disc through screws; a water spraying pipe is fixed to the outer wall of thetop of the rotating disc through screws; spraying holes are formed in the outer wall of one side of the water spraying pipe; the water spraying pipe, the water storage tank and the water pump are connected through guide pipes; a water conveying pipe is fixed to the outer wall of the top of the water spraying pipe through screws and inserted into a mechanical arm; and a water outflow pipe is fixedto the other end of the water spraying pipe through screws.