366results about How to "To achieve the purpose of dust removal" patented technology

The invention relates to a venturi tube cyclone dust collector, which is characterized by comprising a venturi tube and a cyclone sedimentation tower, wherein outlet gas of the venturi tube tangentially enters a cyclone area on the lower part of the cyclone sedimentation tower through an air inlet pipe of the cyclone sedimentation tower; the venturi tube consists of a contraction section, a throat section and a diffusion section; the side wall of the throat section is provided with a plurality of through holes, and the outer side of the through hole are connected with a pressure water supply pipe; a port of the diffusion section forms an air outlet of the venturi tube; a port of the contraction section forms an air inlet of the venturi tube; the lower part of the cyclone sedimentation tower is a cyclone area, the upper part is a sedimentation and dehydration area, and the middle part is provided with an annular clapboard; and the upper part of the sedimentation and dehydration area is provided with a plurality of gas-liquid separating layers. The venturi tube cyclone dust collector has the advantages of small investment, high dust removing efficiency, comparatively longer service life, small water consumption and low running cost, and can be mainly applied to the dust removal of high density flue gas and industrial dust in various industrial furnaces.

The invention provides a system and method for controlling forward/reverse rotation of fan. The control system includes a motor, an interface circuit, a motor controller and a detection control circuit. The interface circuit receives and converts a pulse width modulation signal. The fan dissipates heat when the motor is operated in a forward rotation mode and eliminates dust when the motor is operated in a reverse rotation mode. The detection control circuit reads a duty cycle of the converted pulse width modulation signal in real time. When the motor is operated in the forward rotation mode, the detection control circuit drives the motor controller to control the rotation speed of the fan according to the duty cycle. If the duty cycle is lower than or equal to a first threshold value, the detection control circuit drives the motor controller to switch operation mode of the motor from the forward rotation mode to the reverse rotation mode. The control system can dynamically control the motor and the fan to carry out forward rotation for blowing and reverse rotation for ventilation, in order to realize radiation and dust removal purposes with high efficiency.

The invention relates to a device structure used in the fields of liquefied natural gas heating gasification, natural gas heating, dust removal, central air-conditioning systems and the like. A device for guiding airflows to impact the liquid level in a tangential direction for forming moisture-containing airflows is characterized in that a conical spraying opening (4) communicated with a vertical downward airflow air inlet pipe (2) is arranged in a container (3), liquid (6) is arranged under the spraying opening (4), the lower part of an airflow swirl water element (5) in a reverse umbrella shape is soaked in the liquid (6), an airflow outlet (1) is led out on a passage formed between the inner wall of the container (3) and the outer walls of the air inlet pipe (2) and the spraying opening (4), the middle of the airflow swirl water element (5) is an upwards projected pointed top (5a) and then is an arc-shaped curve surface (5c) formed by being upwards bended a little after firstly going downwards to an edge by a curve line shape extending from the pointed top to the edge, and the horizontal projection of the outer ring of the airflow swirl water element (5) has the same shape as the horizontal cross section of the spraying opening (4) and is in a circular shape or a polygon shape. The invention has the advantages of simple structure and no movable component, is applicable to various kinds of strengthened heat transfer, has the functions of dust removal, humidifying purification and the like, and improves the heat efficiency and the dust removing efficiency.

The invention relates to a ceramic catalytic filter element for flue gas purification and a flue gas desulfurization and denitrification integrated dust removal method. The ceramic catalytic filter element is prepared from the following steps that a microporous alumina ceramic filter tube with a pore diameter of 40-80 microns is taken as a matrix; the matrix is immersed in a mixed sol made of zincacetate, and after the matrix is impregnated under a negative pressure, the matrix is roasted to obtain a modified matrix modified by zinc oxide; an equal volume impregnation method is adopted, and the modified matrix is impregnated with an mixed oxalic acid solution containing ammonium metavanadate and ammonium metatungstate, so that total loading mass of V2O5 and WO3 in pores of the matrix reaches 4.0%-6.0% to obtain an active matrix; the active matrix is immersed in a mixed sol made of Al2O3-SiO2-TiO2, the active matrix is dried and roasted after the active matrix is taken out, and a densefilm with a thickness of 0.2-0.6 millimeter and a pore diameter of 1-10 microns is formed on the outer surface of the active matrix to obtain the ceramic catalytic filter element. A denitrification catalyst of the ceramic catalytic filter element has the advantages of being strong in load, high in denitrification efficiency, long in service life and applicable to popularizing and using.

The invention discloses a dust removal type computer case using air flow for dust blowing. A computer mainboard is installed at the right side wall of the computer case, a case cover is installed on the computer case through fastening bolts, an upper inflator is welded to the upper portion of the case cover, a lower inflator is welded to the lower portion of the case cover, the top of an air flow pipe is communicated with the upper inflator, the bottom of the air flow pipe is communicated with the lower inflator, a screen plate is embedded into the bottom surface of the computer case, a dust-collection drive shaft is installed on the screen plate through a bearing, a dust-collection motor is installed at the bottom of the dust-collection drive shaft, and a dust-collection fan is installed on the upper portion of the dust-collection drive shaft. The dust removal type computer case is scientific and reasonable in design, simple in structure and convenient to use.

The invention relates to a fresh air ventilator and belongs to the field of vented exhaust equipment. The fresh air ventilator comprises an enclosure and a partition plate support in the enclosure; space in the enclosure is divided into a fresh air inlet passage, a fresh air outlet passage, an exhaust air inlet passage and an exhaust air outlet passage through the partition plate support; a filter, a high-voltage static box and an ozone filter are arranged in sequence along an air inlet direction in the fresh air inlet passage; a fresh air fan is arranged in the fresh air outlet passage; an exhaust air fan is arranged in the exhaust air outlet passage; a plate heat exchanger is arranged at the hubs of the fresh air inlet passage, the fresh air outlet passage, the exhaust air inlet passage and the exhaust air outlet passage, and is fixedly arranged on the partition plate support through mounting buckles. The fresh air ventilator disclosed by the invention has the advantages that substances, such as impurities, dust and ozone, in air can be effectively filtered out to ensure the freshness of the air; the energy is saved, and the environment is protected; the heat exchanger is convenient to install and maintain.

The invention relates to a dust removal device for an air filter cartridge. The dust removal device is provided with a frame, an electric control panel, a dust removal chamber with a closed structure, and a sealed dust collection device, wherein a double-roller mechanism and a nozzle guide rod mechanism capable of spraying air to remove dust inside and outside are arranged in the dust removal chamber; under the drive of an speed-adjustable motor and a feed screw nut, an inner nozzle and an outer nozzle in the nozzle guide rod mechanism can do uniform rectilinear motion to and fro inside and outside the air filter cartridge to be dedusted and uniformly apply compressed air to the internal and external surfaces of the air filter cartridge for dust removal; the dust collection device consists of a vacuum pump and a dust collection chamber positioned below the vacuum pump; and one side of the frame is provided with a detection platform for detecting whether the filter cartridge is broken or not. The dust removal device has the dust removal rate of over 95 percent, can realize dust removal and detection functions, is easy to operate and control, can blow the air uniformly in multiple directions, does not damage the air filter cartridge, is labor-saving, time-saving, safe and environmental-friendly, is favorable for protecting the body health of workers and improving labor efficiency, saves production and operation cost, and can clean and maintain various types of cylindrical air filter cartridges in engines of all Europe III buses and other transport vehicles, ships and the like.

The invention discloses a high-voltage and low-voltage wiring split-type high-voltage cabinet, which includes a cabinet body, a fan installation box is fixed on the top of the cabinet body, and a component installation plate is arranged inside the cabinet body, and one side of the component installation plate is below There are high-voltage line branching structures and low-voltage line branching structures arranged up and down, and a distance adjustment structure is provided between the high-voltage line branching structure and the low-voltage line branching structure, and the structures of the high-voltage line branching structure and the low-voltage line branching structure are consistent , and the high-voltage line branching structure includes a movable rod located in the cabinet, a pressure rod is arranged above the movable rod, and symmetrically arranged L-shaped connecting rods are fixed at both ends of the pressure rod. The present invention not only can separate the high-voltage wiring and the low-voltage wiring through the combined use of the high-voltage line branching structure, the low-voltage line branching structure, and the distance adjustment structure, but also the wiring is orderly and tidy, thereby avoiding the messy winding of the high-voltage and low-voltage wiring and reducing the fire risk.

The invention provides intelligent self-cleaning dry fog de-dusting equipment. A water supply pipe and an gas supply pipe are connected respectively with a water gas mixer; a water inlet pressure sensor, a water supply adjusting valve and a water control electromagnetic valve are connected to the water supply pipe; a gas inlet pressure sensor, a gas supply adjusting valve, a gas storage tank filter and a gas outlet pressure sensor are connected sequentially to the gas supply pipe; the gas supply pipe is connected with the water gas mixer by the gas pressure adjusting valve; an fog spraying box, an outlet pressure sensor and a sprayer are arranged on the pipe of the rear part of the water gas mixer; a spraying vibrator is arranged on the sprayer. A connecting pipe is arranged between the gas supply adjusting valve pipe on the gas supply pipe and the water supply adjusting valve pipe, and a back blow valve is arranged on the connecting pipe. The equipment is controlled by a PLC. By utilizing the equipment, the water gas mixed vibrating fog spraying can be realized, the self-cleaning and blockage prevention of pipelines and sprayer can also be realized. The equipment has the advantages of good de-dusting effect and high reliability. And the equipment is suitable for being used as the dry fog de-dusting equipment.

A straw feed grinder, comprising a support column, one side of the support column is fixedly connected with a collection box, the top of the support column is fixedly connected with a support plate, and the top of the support plate is sequentially provided with an auxiliary motor and a discharge box from left to right, The output shaft of the auxiliary motor is fixedly connected with an auxiliary shaft that runs through and extends to the inside of the discharge box. The surface of the auxiliary shaft is fixedly connected with a spiral disk located inside the discharge box. The end of the auxiliary shaft away from the auxiliary motor is provided with an auxiliary bearing. The straw feed grinder is equipped with a crushing roller and a crushing blade, and the straw enters the crushing roller through the feeding funnel for preliminary crushing. After crushing, it falls to the bottom of the machine body. The secondary crushing greatly improves the crushing effect of the straw, and at the same time, the vacuum cleaner is used to absorb the dust inside the machine in time during the crushing process, so as to achieve the purpose of dust removal.

The invention relates to an air-conveying type ultrasonic wave micron-grade dry fog dust suppression system and method. The system comprises a water quality filtering and softening device, a water storage tank, a dry fog dust suppression device and a local controller. An adjustable atomization plate in the dry fog dust suppression device scatters and atomizes a constant-temperature water source which is filtered and softened through the water quality filtering and softening device in the water storage tank, a large amount of micron-grade dry fog and negative ions are produced, a frequency conversion high pressure centrifugal fan in the dry fog dust suppression device blows the large amount of micron-grade dry fog and negative ions out of the dry fog dust suppression device, then the dust is adsorbed, condensed and precipitated, and therefore the purpose of dust removal is achieved. Millimeter-grade visible dust particles can be effectively treated, micrometer-grade inhalable dust particles can also be effectively treated, pollution of dust on the atmosphere is lowered, the work environment of on-site workers is improved, and occupational disease occurrence rate is lowered; the system is small in occupied area, safe and convenient to operate and high in practicability and is controlled in a full-automatic mode.

The invention discloses a collecting and dedusting device. The collecting and dedusting device comprises an unloading chamber (14) and is characterized in that the inside of the unloading chamber (14) is provided with a dedusting device for dedusting, the side portion of the unloading chamber (14) is provided with an air sucking dedusting device, which is connected with the dedusting device; the unloading chamber (14) also comprises a feeding port (13) at the side portion and a collecting hopper (7) at the bottom for collecting materials and dust. By means of a semi-tight structure, the collecting and dedusting device can achieve rapidity during unloading of a machine tool body and obtain dedusting effects. Meanwhile, the collecting and dedusting device is simple in structure, convenient to operate and good in dedusting effects.

The invention discloses a device and method for purifying air using biological enzymolysis. The device comprises a shell and a fan arranged in the shell. An air inlet and an air outlet are formed in the side wall of the shell, the air inlet is arranged below the air outlet, a drum-shaped filter body and a water channel containing a biological enzymolysis adsorption module are arranged in the shell, and the drum-shaped filter body comprises an upper flat plate, a lower flat plate and a plurality of hollow ventilation pipes, wherein the upper flat plate and the lower flat plate are horizontally arranged, and the hollow ventilation pipes are vertically arranged between the upper flat plate and the lower flat plate. The side wall of each hollow ventilation pipe is provided with a filter net where biological enzymes are located, through holes communicated with openings of the hollow ventilation pipes are formed in the upper flat plate and the lower flat plate, the upper flat plate is arranged between the air inlet and the air outlet, the lower flat plate is arranged below the air inlet, and the water channel is arranged below the lower flat plate. The invention further discloses a method for purifying air using biological enzymolysis. According to the method, the biological enzymes are used for indoor environment purification processing, formaldehyde and other organic matter harmful to a human body can be effectively degraded, a bacteriostatic effect also can be achieved, and secondary pollution can not occur.

The invention discloses a built-up device for deodorization, which comprises a housing, the bottom of which is equipped with a distribution system, an air inlet pipe linked to the distribution system, the top of which is equipped with a grid holder, the first filler layer placed above the grid holder, a spray unit on the filler layer, not less than one active filler layers equipped behind the spay unit, and a air outlet equipped behind the other active filler layers. The invented device has a rational structure and a well deodorization effect.

The invention disclose a biogas filter, wherein a filtrating unit composed of a plurality of ceramic filter cores for filtrating ash impurity and impurities in the biogas, is arranged in a cylinder. When the high-temperature biogas passes through the ceramic membrane filter cores of the filter, the dust in gas flow impacts the ceramic membrane filter cores and is held up. The high-temperature combustible gas with tar passes through the ceramic membrane filter cores, to separate the gas flow and a grain flow for removing dust in gas. The filter has the characteristics of high temperature resistance and good filtrating effect.

The invention provides a process and a device for dust removal for a pyrolysis coal gas, and a combined process and device for dust removal for a pyrolysis coal gas and delayed coking for heavy oil. The process for dust removal for the pyrolysis coal gas comprises the following steps: (1) enabling the pyrolysis coal gas to reversely pass through a moving bed particle layer formed by dry coal to obtain primary dust removal coal gas; and (2) carrying out a secondary dust removal treatment on the primary dust removal coal gas by the heavy oil with fractions with temperature of 350 DEG C or above to obtain dustless coal gas. Compared with the prior art, the process for dust removal disclosed by the invention is simple to operate and low in energy consumption and facilitates large-scale running; in addition, the process for dust removal for the pyrolysis coal gas is perfectly coupled together with delayed coking for heavy oil for the first time, thus greatly simplifying the process flow, reducing the operation difficulty, and reducing the cost investment and the energy consumption of a production device.

The present invention discloses an electronic device and a fan assembly. The electronic device comprises a cooling device, a fan assembly and a control circuit; the fan assembly comprises a fan and a fan drive structure, and the fan drive structure comprises a power port and a first fan port different from the power port; the control circuit comprises a second fan port, and is connected with the fan drive structure through the first fan port and the second fan port; and the control circuit generates a fan revolution control instruction, and transmits the instruction to the fan drive structure through the first fan port and the second fan port, and the fan drive structure receives and executes the fan revolution control instruction to control the fan to carry out a corresponding revolution operation. According to the electronic device, by setting the first fan port, the technical problems of the complicated fan circuit design structure and the high cost of the electronic device in the prior art are solved.

The invention relates to a demisting system with dedusting, demisting and water recovery functions. The demisting system with the dedusting, demisting and water recovery functions comprises a demister, a supporting plate and a flushing device, wherein the demister is arranged in an absorption tower; the supporting plate is used for fixing the demister; the flushing device is used for flushing the demister; the demister comprises a plurality of demister blades which are configured in parallel; the flushing device comprises a flushing water pipeline and a plurality of spray nozzles; a flushing water recovery device is arranged below the flushing device, and comprises a plurality of water collection pipes which are obliquely arranged, and a water discharge pipe which is used for communicating the water collection pipes with one another and discharging flushing water outside the tower; channels through which fumes circulate are arranged between every two adjacent water collection pipes. According to the demisting system with the dedusting, demisting and water recovery functions, through the combination of the water recovery device, a spray dedusting system and the demister, the dedusting and the demisting on the fumes and the repetitive recycling of water are realized; the purposes of energy conservation and emission reduction are realized; the requirement of near zero emissions of a heat-engine plant is met.

The invention relates to a clean and environment-friendly iron wires galvanizing apparatus and its technology. The iron wires galvanizing apparatus mainly comprises a paying-out machine (1), a polishing machine (2), a water tank (3), a first galvanizing tank (4), a second galvanizing tank (5), a third galvanizing tank (6), a cold water tank (7), a hot water tank (8) and a take-up machine (9), wherein, roller groups are provided on the paying-out machine (1), the polishing machine (2), the water tank (3), the first galvanizing tank (4), the second galvanizing tank (5), the third galvanizing tank (6), the cold water tank (7), the hot water tank (8) and the take-up machine (9), the iron wires of the paying-out machine (1) and the iron wires of the take-up machine (9) are connected end to endthrough each roller group. The invention also relates to a clean and environment-friendly iron wire galvanizing technology; the invention has the characteristics that no cyanogen or no pickling is contained, circulating water is not discharged which is clean and environment-friendly, the iron wires galvanizing apparatus provided in the invention can replace the traditional equipment of iron wiresgalvanizing, the invention has advantages of water saving and no environmental pollution, and the labor intensity of operators can be reduced, so that operators can get rid of work environment of strong acid mist, thereby the invention is capable of alleviating the damage of acid to operators body, reducing production cost of galvanizing iron wires and raising the competitiveness of enterprises.