66 results about "Dust charge" patented technology

The present invention relates to an electrostatic dust collector comprising a dust charging section and a dust collecting section; wherein said dust charging section comprises: a discharge electrode which is made up of a plurality of paralleled discharge wires, and a counter-electrode which is made up of a metal honeycomb net; and the plane formed by paralleled discharge wires is parallel to the metal honeycomb net; and wherein said dust collecting section comprises: positive metal electrodes and negative metal electrodes disposed alternately, and insulating spacers disposed between each of positive metal electrode and negative metal electrode. The present invention has advantages such as an improved efficiency to remove dust particles, a better ability to decompose harmful gases, a simple structure and a low production cost.

The invention provides a wet type rotating electrostatic field purifier, belonging to the technology of smoke preventing, dust removing and tail gas purifying. The purifier is suitable for purifying the atmospheric floating dust which is less than PM10 and PM2.5 and formed by dust-containing tail gas discharged in the fields such as the industry, the building, the traffic and the like. The wet type rotating electrostatic field purifier adopts the mechanism that the smoke state aerosol particulates are captured by a wet type rotating electrostatic collecting electrode, and are infiltrated and detained by a liquid film, so that the back corona fly of the dust accumulated in the common static electric field can be overcome; and the infiltrated and detained dust is transported into a cleaning pool to be precipitated by the rotating electrostatic field collecting electrode, and a collecting electrode plate is adhered with the liquid film for cycle operation. Under the condition that the good state of the fixed corona electrode of an electric field to the dust charge is guaranteed, the high-efficiency purification can be achieved. When the purifier is used for purifying a dust generating field, a draught fan is adopted and an air outlet and an air inlet of the purifier are symmetrical with each other; and when the purifier is used for purifying the outer air in the assembly hall and the room, a blast blower is adopted, and the air outlet is opened.

low-temperaturetes to the field of flue gas treatment and discloses a device and a method for purifying flue gases. The device for purifying the flue gases comprises an electrical precipitator (2), a low-temperature plasma reactor (4) and wet desulphurization equipment (6) which are connected in sequence, wherein an outlet of the electrical precipitator (2) is connected with an inlet of the low-temperature plasma reactor (4); an outlet of the low-temperature plasma reactor (4) is connected with an inlet of the wet desulphurization equipment (6). The method for purifying the flue gases comprises the following steps of introducing the flue gases containing dust and nitrogen oxide into the electrical precipitator (2) for performing dust removing treatment; enabling the flue gases subjected to the dust removing treatment to enter into the low-temperature plasma reactor for oxidation treatment; then introducing the flue gases formed by the oxidation treatment into the wet desulphurization equipment for absorption treatment. By adopting the device and the method disclosed by the invention, the oxidation and dust charging efficiency of nitric oxide is high; the device is not easy to wear and is good in purifying effect of the flue gases.

The invention discloses a device and a method for removing dust from converter gas by a dry method. The device comprises a converter, a vaporization cooling stack, an evaporative cooler, a crude dust collection system, an electrostatic dust collector system, a fine dust collection system, a fan, a gas component analysis system, a switching valve and a hydraulic station which are connected through a pipeline; the switching valve and the hydraulic station are in three-way connection with a gas chamber and a gas diffusion ignition system; and the vaporization cooling stack is communicated with a compressed air spraying system. A gas ionization area and a dust charging depression area of the electrostatic dust collector are separated, so that the damage of gas explosion to the electrostatic dust collector is avoided substantially, and the safety of a technology for removing dust from the converter gas by the method is improved. An appropriate amount of compressed air is sprayed into the vaporization cooling stack to ensure that gas is combusted, so that the recycling amount of saturated steam is improved. When the gas is recycled, the spraying of the compressed air is stopped, so that more converter gas can be recycled; and therefore, the convert gas can be fully utilized.

The invention relates to an explosion prevention type dust collector, which comprises a box body, wherein the box body is provided with a dust gas inlet; the upper end and the lower end of the box body are respectively provided with a collector cover plate and a discharging hopper; the collector cover plate is provided with a dust gas outlet; a spray blowing pipe is arranged in the collector cover plate; the inlet end of the spray blowing pipe is provided with a pulse valve; a plurality of anti-static filter bags communicating with the spray blowing pipe are also arranged inside the box body; explosion prevention films are arranged on the outer side surface of the box body and the upper end surface of the collector cover plate; meanwhile, the invention also provides a control method of the explosion prevention type dust collector. The explosion prevention type dust collector has the advantages that the structure is simple; the explosion prevention effect is good; charges can be discharged out; the explosion rate can be reduced; the dust accumulation is reduced; the smooth discharging of the dust is ensured; the inside dust humidity can be well controlled; the spraying and blowing conditions are strictly controlled; the regular flowing of the inside dust is ensured; the generation of dust charges is reduced; the safety is higher.

The invention discloses a method and device for ultra-clean electric dust removal. The device comprises: a device body provided with a dust removal chamber, a gas inlet, a gas outlet, a high-voltage power supply device, an ash hopper, a plurality of cathode queues and anodes arranged in the dust removal chamber Queues, and dust cleaning devices; wherein, the cathode queues and the anode queues appear in pairs, and are arranged at least one-dimensionally apart from each other to form a dust removal electric field, and the dust removal electric field includes an electric field component facing away from the ash hopper. The invention uses a high-voltage power supply device to ionize the gas flowing through the gas inlet and into the dust removal chamber, so that the dust is negatively charged. Under the action of the dust removal electric field, the charged dust moves towards the ash hopper and falls into the ash hopper for dust removal. The final gas is discharged through the gas outlet; and the ash hopper and the anode queue with dust attached are cleaned by the dust cleaning device; the separation and capture of the charged dust are divided into two spaces to complete, avoiding the problem of secondary dust, The problem of difficult ash removal is solved by adding a dust removal device.

The invention relates to a double-area multi-stage electrostatic precipitator of reverse airflow dust charge, belonging to the technical field of an electric precipitator. The double-area multi-stageelectrostatic precipitator of the reverse airflow dust charge can effectively improving the dedusting effect of high specific resistance dust and meets the requirement of flue gas purification of thehigh specific resistance dust. The electrostatic precipitator comprises an air inlet box, an air outlet box and at least one dedusting section arranged between the air inlet box and the air outlet box; wherein each dedusting section includes a charge area and a dust collection area, wherein the dust collection area comprises a plate, a plate channel or line and a plate channel. The electrostatic precipitator is characterized in that an anode of the charge area is formed by anode grid rows formed by vertically arranging grid grooves, and a cathode of the charge area is formed by cathode grid rows formed by vertically arranging grid tubes; the anode grid rows and the cathode grid rows are arranged along the direction vertical to the flowing direction of airflow, the cathode grid rows are arranged at the downwind side of the anode grid rows, and barbs are arranged on the surface of each grid tube facing the wind; and the cross sections of the grid grooves of the anode grid rows are isoceles triangles, and the plane where the bottom sides of the isoceles triangles are positioned is the surface facing the wind.

The invention relates to the technical field of space environment detection, and in particular, relates to a multifunctional space high-speed dust characteristic detector comprising a box body, a charge induction grid mesh, a flight time mass spectrometer, a microscopic camera, a dust collection device and a dust impact target, wherein a charge induction grid mesh, a time-of-flight mass spectrometer and a dust impact target are sequentially arranged on one side in the box body from top to bottom; and the microscopic camera and the dust collection device are arranged on the other side of the box body, and the microscopic camera is arranged above the dust collection device. According to the invention, in-situ comprehensive detection of interplanetary high-speed dust charge, speed, particle size and components is realized, the system integration degree is high, the functions are comprehensive, the detection precision is high, the number of measurement parameters is large, and a plurality of important characteristics and comprehensive detection data of interplanetary dust can be obtained.

The invention discloses multiple electrostatic fabric filters for solving the problems of dust charge loss and the like of the prior electrostatic fabric filter. In the multiple electrostatic fabric filters, an electric dust-removing device (4) and a bag dust-removing device (3) are sequentially and crosswise arranged inside a shell (2) close to an inlet smoke tank (6) along an air flow direction. Thus, the multiple electrostatic fabric filters have the advantages of adequate dust charge, high gap rate, easy dust cleaning and the like.

The invention discloses a vertical electrostatic fabric filter for solving the problems of inadequate dust charge and the like of the prior electrostatic fabric filter. In the vertical electrostatic fabric filter, an electric dust-removing device (5) is arranged above a dust hopper (7), and a bag dust-removing device (2) is arranged above the electric dust-removing device (5). The vertical electrostatic fabric filter has the advantages of simple manufacture, adequate charge and the like.

The invention discloses a lunar dust electrostatic energy storage and power generation device, which comprises a capacitor (20), a lunar dust charge collector (30), a bracket (11), an electrode mechanism (40) and a switch assembly (50) and is characterized in that the lunar dust charge collector (30) comprises a shell (310) and a gravity center conversion mechanism which is vertically arranged inthe shell (310) and is used for enabling the shell to rotate; the bracket (10) comprises a first bracket (110) and a second bracket (120); the lunar dust charge collector (30) is arranged between thefirst bracket (110) and the second bracket (120); and when the electrode mechanism (40) makes contact with the lunar dust charge collector (30) and is connected with the capacitor (20) through the switch assembly (50), lunar dust charges are guided into the capacitor (20), and the lunar dust electrostatic energy storage and power generation device stores electric energy. The lunar dust electrostatic energy storage and power generation device has the advantages of being simple in structure, high in power generation efficiency and capable of continuously generating power.

The invention discloses a self-cleaned plasma air conditioning method and device. A plasma dust collection principle is that PM2.5 dust haze particulates are supplied with charges and are captured bya high voltage electric field. Three problems can be caused, namely, PM2.5 particulates of larger sizes can be easily charged and captured, very fine PM2.5 particulates such as dust haze smaller than0.3 micrometers can easily escape from a plasma air conditioning electric field of an HEPA filtering net; after the dust haze is adsorbed to a dust collection electrode for a certain amount, a dust collection effect can be rapidly degraded if the filtering net is not cleaned in time; ozone and nitric oxides are inevitable byproducts in plasma air discharge. By adopting the method and the device disclosed by the invention, dust haze particulates are combined and aggregated with water mist to form large clusters which are further fed into a plasma charge zone and a dust charge zone, and then theparticulates can be easily charged and collected by the electric field; in addition, the water mist captured onto a dust collection electrode forms water droplets which flow down from the dust collection electrode, then the dust haze particulates on the dust collection electrode can be carried away, and a function of cleaning the dust collection electrode can be achieved; charges are adsorbed bythe water mist, so that the generation rate of ozone and nitric oxides is reduced, and in addition, due to photocatalytic decomposition of the ozone and the nitric oxides, the ozone and the nitric oxides can be remarkably degraded, and the concentrations can be remarkably reduced.

The invention discloses a flue purification system for a precision casting roasting furnace. The flue purification system comprises a furnace, wherein smoke with wax in the furnace is fed into a cooling tower to be cooled, and then dust with large particles and high specific gravity in the smoke can be filtered by a bag filter, and fine dust in the smoke can also be filtered. The dust removal effect is further improved by a water dust scrubber. Certainly, a more important effect of the water dust scrubber is to cool the smoke again, so a chilling unit needs to be added; and therefore, the ratio of water vapor in the smoke is greatly decreased so as to serve a subsequent electrostatic precipitator. If excessive water vapor exists, the electrostatic precipitator cannot normally achieve effects, so addition of the chilling unit is very necessary. Then, the smoke is ionized by the electrostatic precipitator by utilizing a high voltage electric field, and dust charge in airflow is separatedfrom the airflow under the action of the electric field. Finally, malodorous gases are split by a UV photolysis air purifier. Therefore, the gas can be safely discharged to the atmosphere.

The invention discloses an electrostatic power generation device utilizing lunar dust. The electrostatic power generation device comprises a capacitor (10), a lunar dust charge collector (20) and a gravity center conversion mechanism used for shell rotation. The shell (210) comprises a first shell (211), a second shell (212) and an insulating part (213) arranged between the first shell (211) and the second shell (212); the first shell (211) is connected with the positive electrode (110) of the capacitor (10) through a short-circuiter (30), or the second shell (212) is connected with the negative electrode (120) of the capacitor (10) through the short-circuiter (30); and when the first shell (211) is connected with the positive electrode (110) of the capacitor (10) through the short-circuiter (30) or the second shell (212) is connected with the negative electrode (120) of the capacitor (10) through the short-circuiter (30), the electrostatic power generation device stores electric energy. The device has the advantages of being simple in structure, convenient to maintain, high in power generation efficiency and capable of continuously generating power in a passive sensing and controlmode.

The invention discloses a dust collection device suitable for the production of electric wires and cables, which comprises a main machine, a protective cover and a dust suction head, the main machine is arranged in the protective cover, the bottom of the main machine is fixedly connected with the bottom of the protective cover, and the protective cover includes several horizontal bars , a number of vertical bars and a number of installation holes, the bottom of the protective cover is equipped with a dust box, the main engine is equipped with a small exhaust fan, one side of the small exhaust fan is equipped with a number of air deflectors, and the bottom of the air deflector is provided with air holes , the air hole communicates with the dust box, and there is a filter device in the dust box. The filter device includes a number of filter cotton and an adsorption layer. There is an adsorption layer under the filter cotton. The dust suction head includes a dust suction main pipe, a fixed connector and Several dust suction pipes, the top of the main unit is fixedly connected to one end of the dust suction main pipe, the top of the protective cover is provided with a round hole at the position corresponding to the dust suction main pipe, and the other end of the dust suction main pipe is connected to the fixed connector through the round hole, fixed The connector is provided with several small holes.

A technology for producing a wall sticking prevention multifunctional fertilizer relates to the technical field of sedimentation furnace production of lime nitrogen multifunctional fertilizers. The technology comprises the following steps: reaction materials are crushed and mixed; foundry returns are crushed; the reaction materials and the foundry returns are respectively fed into a material scatter, the scatter makes reaction material dusts charged and the inner wall of a reaction segment likely charged, and classic repulsion makes the reaction material dusts not adhered to the wall of a furnace; a thermometer is used to monitor the temperature of the furnace and control the added foundry returns lime nitrogen, and the temperature of the furnace is controlled to be in a proper range; anda double-roller discharging system upwards crushes and discharges during tapping, and continuous vibration makes the furnace material fast and stably settled. The invention also provides an apparatusinvolved by the technology. The apparatus comprises a reaction material chamber, a foundry return chamber, a spiral feeder, the electrostatic generation type scatter, a settling furnace, the double-roller discharging system, the thermometer and an automatic control system. The technology and the apparatus effectively avoid the dusts from being adsorbed to the wall of the furnace, and avoid meltingwall sticking and hardening wall sticking caused by too high or too low temperature.

The invention discloses a high-performance electrostatic dust removal device, which mainly consists of a dust collector box (1), an air inlet (2), an air outlet (3), an air inlet horn (4), an anode frame (6), and a cathode frame (7), dust deflector (8), high-voltage power supply (9), and ash collecting bucket (10). Compared with the existing electrostatic precipitator technology, the present invention has the following advantages: the dust is confined under the action of corona wind It is inside the anode plate of the cavity, thereby reducing the turbulence intensity in the flue gas channel and improving the dust collection effect; its high-voltage power supply is composed of two parts: a basic DC power supply and a carrier pulse power supply, which increases the dust charging probability and can be widely used Applied to the fields of environmental dust removal and process dust collection in coal-fired power plants, iron and steel smelting, building materials, and construction sites, the invention has the advantages of small running resistance, low cost, simple processing technology, short construction period, small maintenance, and especially high dust removal efficiency. Not limited by dust characteristics.

The invention discloses the use of a high-frequency power supply in an electrostatic fabric filter for solving the problems of low dust collection efficiency and the like of the power-frequency power supply of the prior electrostatic fabric filter. The electric field dust charge strengthening effect of the high-frequency power supply is used to provide adequate electric field charge, allow dust on the surface of a filter bag to distribute and attach orderly and loosely, and ensure high gap rate. Thus, dust collection efficiency is improved greatly and the high-frequency power supply is an ideal rich-energy power supply for the electrostatic fabric filter.

The invention discloses a dust removal device used for a factory processing workshop based on an electrostatic dust removal technology. The device comprises a device body, the bottom of an inner cavity of the device body is provided with an upper separator plate and a lower separator plate, and the upper separator plate and the lower separator plate divide the inner cavity of the device body intoa discharge chamber, a dust removal chamber and an air inlet chamber from top to bottom, the left side of the upper separator plate is provided with an air outlet hole, and the lower separator plate is provided with a dust exhaust hole and a communication hole, and the bottom end of the dust exhaust hole is connected with a communication tube matched with the air inlet chamber, a plurality of dustcollecting plates are evenly arranged between the dust exhaust hole and the air outlet hole, and a dust collecting pole is arranged on the dust collecting plate. The device realizes the preliminary filtration of the air through a filter screen, and removes the large particle floating dust in the air; the dust charge in the gas is separated from the air flow under effect of the electric field by the dust collecting plate, and the work of dust removal is realized, the dust after dust removal falls directly into the dust exhaust hole, and then falls into the air intake chamber through the communication tube, and dust removal to the air is realized. At the same time, the dust particles are also discharged in time to prevent the accumulation of floating dust which can affect the practical lifeof the device.

A non-exhaust fine dust collecting apparatus using friction electricity is disclosed. An exemplary embodiment of the present invention provides a non-exhaust fine dust collecting apparatus using friction electricity, including: an air pipe mounted in a vehicle and provided with an inlet through which fine dust generated in a vehicle and charged with a first polarity flows together with air; and a dust collector mounted at a side of an outlet of the air pipe and charged with a second polarity that is opposite to the first polarity to collect the fine dust charged with the first polarity.