35results about How to "Reduce dust collection" patented technology

In a charging time period T1, a dry electrostatic precipitator outputs DCON that is a current for charging a collection target object from a high voltage power supply. Subsequently, in a second period of time T2-2 after a first period of time T2-1 passes from a time that a charging pause time period T2 starts, the dry electrostatic precipitator outputs DCBC that is a current that is less than DCON and is greater than a current in the first period of time T2-1, from the high voltage power supply.

The invention relates to the technical field of steel slag treatment in metallurgical industry, and discloses a stainless steel slag sorting device and a stainless steel slag sorting method. The stainless steel slag sorting device comprises a material hopper, a bar screen, a bucket elevator, a powder sorter, a cyclone dust collector and a bag-type dust collector, wherein the powder sorter is externally connected with an air blower; a granule outlet is formed in the bottom end of the powder sorter; a powder outlet is formed in the upper part of a side wall opposite to the material inlet of the powder sorter. According to the stainless steel slag sorting device and the stainless steel slag sorting method, after stainless steel slag raw materials are screened primarily, stainless steel slag is sorted by the powder sorter in a micro-negative-pressure work environment, so that the beneficiation of the granules which contain metal materials and have larger granule size is realized favorably, the powder with smaller granule size is collected by the cyclone dust collector, and dust can be prevented from being exhausted into atmosphere by the bag-type dust collector. By using the stainless steel slag sorting device and the stainless steel slag sorting method, the abrasion of equipment caused by steel slag is reduced; the service life of the equipment is prolonged; the production cost is reduced; meanwhile, the water using amount and the water treatment cost of wet treatment are also reduced; energy is saved; emission is reduced.

The invention relates to the technical field of high-voltage cabinets, in particular to an energy-saving and heat-dissipating high-voltage cabinet, comprising a cabinet body, two long pillars and two short pillars, wherein the two long pillars and the two short pillars are both connected to the cabinet body, and the cabinet body passes through The two thrust bearings are connected with a vertical shaft, and the vertical shaft is connected with a plurality of driving sleeves and a plurality of driving strips. The vertical shaft is connected with a plurality of fan blades through an installation ring, and the installation ring is connected with a traction mechanism. The traction mechanism is close to the two thrust bearings. A tension spring is connected between the thrust bearings on the upper side, an annular filter dust-proof plate and a back plate are installed in the cabinet, two long and two short columns are connected with an inclined frame, and the long and short columns are connected by a wing bracket. The fan-shaped bracket, the wing bracket is connected with the traction mechanism, the solar panel is installed on the back plate, the inclined frame, the wing bracket and the fan-shaped bracket, the battery and the generator are installed in the cabinet, and the cabinet is connected with two installation door mechanisms, which are relatively Energy saving, clean use, stable heat dissipation, and more practical.

The invention discloses a sliding computer display screen which comprises a box body. Guide rails are arranged at the top and the bottom of an inner cavity of the box body, a first supporting rod is mounted on the back of the box body, one end of the first supporting rod away from the box body is connected with one end of a second supporting rod through a damping hinge, one end of the second supporting rod far away from the damping hinge is welded to the upper portion of the a supporting base, one end of a display screen mounting plate is welded on the side wall of a column, and bearings are installed at both ends of the column. The bearings are placed in sliding grooves of the guide rails, and the display screen mounting plate is provided with a threaded through hole. According to the sliding computer display screen, dust on the display screen can be greatly reduced, and the service life of the display screen is prolonged. The sliding computer display screen is simple in structure, ingenious in design, small in occupied space and convenient to use.

The invention discloses a dry road sweeper. In the dry road sweeper of the present invention, after the fan starts to work, the garbage, water droplets and dust on the road surface are sucked into the fan, and the dust removal system first guides the airflow into the garbage can to settle the garbage, and then performs water and dust removal on the airflow to remove dust. The water vapor and most of the dust mixed in the air flow are eliminated, and the dust removal capacity of the subsequent dust removal device is reduced. Part of the airflow after the water and dust removal treatment is filtered by the dust removal device and discharged out of the car, and the other part of the air flow is transported to the suction nozzle through the back blowing pipe for back blowing, which reduces the pressure loss of the dust removal device and further reduces its dust removal capacity. Ensuring that it has good continuous dust removal ability prolongs the working time of the dry sweeper. Moreover, with the improvement of the continuous dust removal ability of the dust removal device and the back-blowing recycling of the airflow, the dust removal ability of the dry road sweeper is greatly improved, and there is no need to spray water to reduce dust, and water-free operation can be realized, especially suitable for winter Do your homework.

The invention discloses an energy-saving heat dissipation type high-pressure hot water circulating pump, and relates to the technical field of circulating pumps. The device comprises an outer shell and a bottom shell, the outer shell is communicated with the bottom shell, a heat dissipation part is installed in the outer shell, a motor is installed in the heat dissipation part, a first impeller and a second impeller are installed on a shaft body of the motor, the first impeller is located in the outer shell, the second impeller is located in the bottom shell, and exhaust holes are formed in the side face of the outer shell. A liquid inlet hole is formed in the side face of the bottom shell. The rotating shaft body drives the first impeller and the second impeller to rotate, the first blade arranged in the first impeller exhausts air in the first cavity through the exhaust hole, and external air enters the first cavity through the heat dissipation part, so that heat dissipation of the motor and the shaft body is completed.

The invention relates to the technical field of steel slag processing in metallurgical industry, and discloses a stainless steel slag drying and air separation device and a drying and air separation method. The stainless steel slag drying and air separation device comprises a hopper, a bar screen, a bucket elevator, a drying kiln, a cyclone dust collector and a bag dust collector, the drying kiln is internally provided with a lifting plate, a combustion fan and an air blower, the bottom end of the drying kiln is provided with an aggregate outlet, and the upper part of a material outlet of the drying kiln is provided with a powder outlet. The stainless steel slag drying and air separation device integrates drying and air separation in a whole, after preliminary screening of a stainless steel slag raw material, the stainless steel slag is dried and by the drying kiln, meanwhile the air separation is performed, metal-containing material enrichment is facilitated, powder with smaller particle size is collected by the cyclone dust collector, and the bag dust collector can prevent the dust from discharging into the atmosphere; the device wear caused by the stainless steel slag can be reduced, the device service life can be prolonged, production cost can be reduced, wet processing water consumption and water treatment cost can be reduced, and energy saving and emission reduction can be achieved.

The invention provides an H-shaped heat exchange pipe which comprises a base pipe and multiple sets of fins. The multiple sets of fins are arranged on the base pipe at intervals in the axis direction of the base pipe, and each set of fins is parallel to the cross section of the base pipe. Each set of fins includes two fins, wherein the two fins are symmetric about the face where the axis of the base pipe is located. The cross section of the base pipe is rectangular. The fins are rectangular. A first opening and a second opening are formed between every two fins, wherein the first opening and the second opening are symmetric about the face where the axis of the base pipe is located. A finned pipe is provided so that the function of heat transfer strengthening can be met, and meanwhile dust accumulation can be relieved to a great extent.

The invention discloses a cyclone separator used for gas-solid or liquid-solid separation, comprising a gas riser, an air outlet, an air inlet, a straight cylinder section, a separation deposition cone section, a dust outlet, and a wearable layer. The cyclone separator is characterized in that the separation deposition cone section adopts a bent cone structure; the axis line track of the bent conestructure is an arc or an ellipse or other smooth transition curved lines. The cyclone separator is mainly used for the separation, recycling and exhaust of the wasted catalyst fine powders in the fourth-class cyclone separation system of a petroleum chemical fluid catalytic cracking device. The cyclone separator with the bent cone structure has installation height which is only one third of theinstallation height of a vertical cyclone separator, and is applicable to the design and reconstruction of devices with equipment installation space to be restricted; meanwhile, the bent-cone typed cyclone separator has simple structure, large wind disposal quantity and high efficiency; furthermore, as the liner material with high wearability is adopted, the cyclone separator of the invention canbe used under high temperature for a long time.

The invention discloses a dust removal system and a dry road sweeper with the same. It sets a deflector at the air inlet to direct the airflow and garbage into the trash can. Most of the garbage settles at the bottom of the trash can under the action of gravity, and some light garbage, water vapor, and dust will flow out of the trash under the action of airflow. The bucket rises up, and the light garbage is blocked by the filter screen, and only the airflow mixed with water vapor and dust is allowed to enter the dust removal box. After the airflow mixed with water vapor and dust enters the dust removal box, the inertial water removal device captures the water vapor and most of the dust, and the second dust removal device only needs to remove a small part of dust mixed in the airflow, thus greatly reducing the second The dust removal capacity of the dust removal device and the dust removal interval of the second dust removal device are longer, which prolongs the effective working time and improves the cleaning efficiency. The dust removal operation is carried out through the cooperation of the inertial water removal device and the second dust removal device, and the overall dust removal effect is better. .

The invention discloses an antistatic polypropylene composition. The antistatic polypropylene composition is prepared from the following components in parts by weight: 40 to 80 parts of polypropyleneresin and 1 to 8 parts of antistatic agent, wherein the antistatic agent is hyperbranched polyethylenimine. According to the antistatic polypropylene composition disclosed by the invention, the hyperbranched polyethylenimine is added and is used as the antistatic agent; the tail end of the hyperbranched polyethylenimine contains a lot of amino groups; the amino groups absorb water in the air to become conductive, so that the surface resistivity is reduced, static electricity is eliminated and the composition has the antistatic effect; the antistatic polypropylene composition disclosed by the invention has excellent long-period antistatic property and mechanical property; the antistatic polypropylene composition can be used for preparing inner and outer ornaments of automobiles, improving the antistatic property, reducing the dust collection degree and keeping parts clean and beautiful.

The invention provides a finned tube. The finned tube comprises a base tube and transverse fins arranged on the base tube, wherein the base tube and the fins are coated with anticorrosive layers. According to the finned tube, by arranging the anticorrosive layers, the finned tube can be prevented from being corroded in the heat exchange process, and the heat exchange effect can be further improved.

The invention discloses an efficient heat dissipation type LED lamp convenient to install. The efficient heat dissipation type LED lamp comprises a lamp body; the two sides of the lamp body are provided with heat dissipation air openings; a PCB is arranged inside the lamp body; LED lamp beadsarearranged on the lower surface of the PCB; heat dissipation finsarearranged at the upper end of the PCB;a driver is arranged at one sides of the heat dissipation fins; grooves are arranged at the four corners of the lower end of the lamp body; a lamp cover is arranged below the lamp body; convex edges are arranged at four corners of the upper end of the lamp cover; mounting sliding ports are arranged at four corners of the upper end of the lamp body; a mounting disk is arranged above the lamp body;mounting screw holes are arranged in the surface of the mounting disk; a connecting line penetrating hole is arranged between the mounting screw holes; and inlaid convex columns are arranged around the surface of the mounting disk. The efficient heat dissipation type LED lamp convenient to install provided by the invention has simpler structure, faster heat dissipation, light distribution in all directions and uniform light projection, has the characteristics of being high in light efficiency and high in service life, and is wide in application range and convenient to popularize and use.

The invention provides a heat exchange tube with variable axial spacing of fins. The heat exchange tube comprises a base tube and a plurality of fins, wherein the plurality of the fins are arranged on the base tube in a spacing manner in an axis direction of the base tube; and each fin is parallel to the cross section of the base tube. The finned tube is characterized in that in a flowing direction of a fluid in the base tube, the spacing between adjacent two fins in an axial direction of the base tube is continuously reduced. According to the finned tube, the spacing between the fins is changed, so that the heat can be absorbed to the greatest extent.

The invention provides a copper aluminum alloy finned tube which comprises a base tube and transverse fins arranged on the base tube.The base tube is made of a copper aluminum alloy.The new developed copper aluminum alloy finned tube can have the function of reinforcing heat transfer and can improve heat resistance of the alloy greatly.

The invention provides a rectangular transverse-section finned tube. The finned tube comprises a base tube and transverse fins arranged on the base tube, wherein the base tube and the transverse fins are rectangular. According to the finned tube, by arranging the rectangular fins and the rectangular base tube, the base tube and the fins have the same shape, the heat exchange field can be synergetic, the heat distribution direction and the transmission amount can be basically identical in the circumferential direction, and therefore heat transfer can be further improved.

In a charging time period T1, a dry electrostatic precipitator outputs DCON that is a current for charging a collection target object from a high voltage power supply. Subsequently, in a second period of time T2-2 after a first period of time T2-1 passes from a time that a charging pause time period T2 starts, the dry electrostatic precipitator outputs DCBC that is a current that is less than DCON and is greater than a current in the first period of time T2-1, from the high voltage power supply.