41results about How to "Improve dust filtering effect" patented technology

The invention discloses a smoke dust treatment device for metal granulation. The smoke dust treatment device comprises a dust removal box and a granulation device, an induced draft fan is arranged onthe lower portion of the side wall of the dust removal box and communicated with a dust hood through an induced air pipe, the dust hood is positioned above a feeding port of the granulation device, aspraying pipe, a primary filter screen, a secondary filter screen and a tertiary filter screen are sequentially arranged in the dust removal box from bottom to top, hairbrush plates are arranged on the upper sides of the primary filter screen, the secondary filter screen and the tertiary filter screen, and an air outlet is formed in the top of the dust removal box. According to the device, smoke dust generated in the metal granulation process can be rapidly led into the dust removal box to be treated, work environment pollution caused by flying smoke dust is prevented, health of workers is protected, air with the smoke dust led into the dust removal box can be sprayed by the spraying pipe, filtered by the multilayer filter screens and then discharged, smoke dust treatment effects are good,and the cleanliness of discharged gas is higher.

The speed reducing centrifugal dusting unit of cleaner includes circular cylinder with wind outlet pipe and wind inlet pipe, conic cylinder with small upper part and large lower part, and dust collecting box connected successively from top to bottom. The conic cylinder has mushroom reflecting disc below the wind outlet pipe, and there is reflux hole in the center and ring dust-falling interval between the edge of the disc and the side wall. The unit has small pressure loss, high dust collecting effect, high dust filtering precision, low working noise and no secondary pollution; and is especially suitable for use as secondary filtering system in cleaner to separate fine dust.

The present invention relates the field of non-wovens, and discloses an impregnated-type non-woven and a manufacturing method thereof. A first fiber comprises a low melting point fiber and a polyester fiber; and a second fiber comprises a low melting point fiber, a viscose staple fiber and the polyester fiber. The raw materials of the first fiber are as follows: the low-melting fiber accounts for 5% to 20% by mass of the total mass of the first fiber, and the polyester fiber accounts for 80%-95% by mass of the total mass of the first fiber. The raw materials of the second fiber are as follows: the low melting point fiber accounts for 5% to 20% by mass of the total mass of the second fiber, the polyester fiber accounts for 80% to 95% by mass of the total mass the second fiber, and the viscose staple fiber accounts for 5% to 15% by mass of the total mass of the second fiber. The concentration percentage by mass of polyacrylate is divided into two types, 10% and 25%. According to the invention, the impregnated-type non-woven are manufactured by performing the process of first tiling, punching through up and down, hot baking, hot ironing, adding the polyacrylate, drying, and hot ironing to the fibers for the first time. The impregnated-type non-woven has the characteristics of good adsorptivity, high filterability, and a large dust-holding capacity.

The invention belongs to the field of dust removers, and particularly relates to a self-adjusting dust remover. The self-adjusting dust remover comprises a shell and a dust collecting hopper, and an air inlet pipe and an exhaust pipe are fixedly connected to the side wall of the shell. The interior of the shell is provided with: an annular groove formed in the shell and formed in the inner side wall of the shell; a dust filtering plate fixedly installed in the annular groove, wherein a plurality of dust filtering holes are distributed in the dust filtering plate in an array mode; a sealing plate, of which the edge is in sliding and sealing connection with the side wall of the dust filtering plate; a liquid storage cavity formed in the upper part of the shell and internally filled with a cleaning agent; a water absorption ring fixedly connected to the inner bottom surface of the liquid storage cavity; a plurality of water absorption strips with upper ends penetrating through the shell and fixedly connected with the water absorption ring and lower ends fixedly connected with the upper end of the sealing plate; and a deformation mechanism which is arranged among the plurality of waterabsorption strips and comprises the following components as the specification. Dynamic adjustment of the dust filter can be achieved according to the air inflow, so that the utilization rate of the dust filter can be greatly increased and the dust adsorption effect is improved.

The invention relates to a FA201B carding machine dust collection method. The FA201B carding machine safe stripper area triangular space, flat strips, and licker-in degassing four absorption points are connected to concourse tube by spring tube. Three or four FA201B carding machines are formed one set. Droppings and dust are continuously absorbed to filter equipment. The droppings under the machine are intermittently absorbed into fiber compactor by uphill line pipeline. The invention is upper machine continuous absorption and under machine intermittent absorption method. It can reduce energy consumption, simplify structure, and economize material cost.

The invention provides an electric dry sweeper which is good in sweeping effect, high in operation efficiency, sanitary and environment-friendly. The electric dry sweeper comprises a power system, a walking system, a sweeping system, a garbage conveying and collecting system and a dust removal system. The power system comprises an engine, an electric generator connected with the engine and a battery pack. The electric dry sweeper is characterized in that the sweeping system comprises vertical brush components located on the two sides of a car body and rolling brush components located behind the vertical brush components, the garbage conveying and collecting system comprises a conveyor belt obliquely arranged on the car body and a dustbin located on the car body, one end of the conveyor belt is located behind the rolling brush components, the other end of the conveyor belt is arranged in the dustbin, the dust removal system comprises a draught fan arranged in the dustbin and a pipelineconnected with the draught fan, the draught fan is connected with the engine, and the pipeline is arranged on the periphery of the portion, located outside the dustbin, of the conveyor belt.

The invention discloses a terylene cleanroom clothes fabric coating adhesive and a preparation method thereof. The terylene cleanroom clothes fabric coating adhesive is prepared by compounding 100 parts of acrylic acid modified polyurethane emulsion, 2 to 5 parts of a polyurethane flatting and rheological agent and 2 to 5 parts of an end-capped isocyanate cross-linking agent, wherein the acrylic acid modified polyurethane emulsion is prepared from the following raw materials in parts by weight: 50 to 70 parts of diphenylmethane diisocyanate, 10 to 15 parts of polyethylene glycol of which the average molecular weight is 1450, 15 to 20 parts of polyethylene glycol of which the average molecular weight is 1000, 50 to 60 parts of polybutadiene diol of which the average molecular weight is 2000, 10 to 20 parts of styrene, 10 to 20 parts of chloroprene rubber, 5 to 10 parts of methyl acrylyl ethyl trimethyl ammonium chloride, 150 to 200 parts of deionized water, and 1 to 2 parts of 2,2'-azobis(isobutylamidine dihydrochloride). Terylene conductive cloth finished by the coating adhesive has excellent antibacterial, anti-static, moisture permeable, air permeable and dust filtration performances, and excellent washing resistance.

The invention belongs to the technical field of dust removers, and particularly discloses a bag dust collector with a self-dust-cleaning function. The self-dust-cleaning function of a filter bag is achieved by adopting the filter bag with a smooth surface and an air inlet in the tangential air inlet direction in the bag dust collector. In addition, a double-layer dust filtering device is adopted, the filtering area of the dust collector is greatly increased, the problem that the filtering area is reduced as the filter bag with the smooth surface is adopted is solved, and the dust collecting effect is achieved by means of air circulation between inside and outside filter bag bodies. The bag dust collector has the advantages of being low in cost, capable of working continuously and suitable for movable dust collection equipment, and having few fault points.

The invention relates to the technical field of tea machining, in particular to a swing type drying oven device for tea drying. The swing type drying oven device comprises a box body, wherein a material carrying net cage is arranged on the inner side of the box body, elastic stretchable assemblies are mounted and fixed on the left and right side walls of the box body respectively, and the inner ends of the elastic stretchable assemblies are fixedly connected with the material carrying net cage, a double-shaft extension motor is mounted and fixed at the bottom of the material carrying net cage,cams are mounted and fixed on a lower side output shaft of the double-shaft extension motor, and toggle assemblies capable of being linked with the cams are correspondingly arranged on the left sideand the right side of the bottom of the box body; an upper side output shaft of the double-shaft extension motor is fixedly connected with a rotating shaft, the rotating shaft inside the material carrying net cage is circumferentially provided with stirring assemblies, the upper end of the rotating shaft is connected with a connecting hose through a rotating connecting piece, the other end of theconnecting hose is connected with an air exhaust pipe, and the other end of the air exhaust pipe is connected with a temperature control fan arranged at the top of the box body. The swing type dryingoven device is novel and reasonable in structure, good in drying effect on tea leaves and high in popularization and application value.

The invention discloses a lindera aggregata turbulence type energy-saving drying device. The device comprises a box body, wherein a bearing box is arranged on the inner side of the box body, a plurality of supporting springs are arranged on the outer side of the bearing box, and a corrugated sleeve is arranged on the lower side of the bearing box; a central rotating pipe is arranged in the middleof the bottom of the box body, and a plurality of exhaust pipes are installed on the central rotating pipe; a sealing cover is arranged on the box body, and a connecting rod fixedly connected with thesealing cover is arranged at the upper end of an electric telescopic rod on the left side of the box body; an exhaust pipe is arranged in the middle of the sealing cover and connected with a dust removal cylinder through a telescopic corrugated pipe; a communicating air pipe is further arranged at the bottom of the dust removal cylinder and provided with an air pump and an electric heater separately, and the other end of the communicating air pipe is connected with the central rotating pipe through a rotary joint. The drying device is novel in structure, improves the lindera aggregata dryingefficiency and effects, shortens the retention time of water on the surface of lindera aggregata, prevents stripes on the surface, guarantees the internal structure of lindera aggregata, saves energy,is environmentally friendly, and facilitates popularization.

The invention discloses a high-voltage power distribution cabinet with a multi-protection device and belongs to the field of power equipment. The high-voltage power distribution cabinet with the multi-protection device of the invention discloses a cabinet body; a supporting plate is fixed to the upper side of the cabinet body through supporting columns; a waterproof curtain is arranged around thelower side of the cabinet body; a motor is fixed on the upper side wall of the cabinet body; a first winding wheel and a second winding wheel are respectively arranged on the output shaft of the motor; fixed pulleys are mounted at left and right ends of the lower side wall of the supporting plate; the lifting rope of the first winding wheel penetrates through the left fixed pulley and is connectedwith a lifting ring on the left side of the waterproof curtain; and the lifting rope of the second winding wheel penetrates through the right fixed pulley and is connected with a lifting ring on theright side of the waterproof curtain. Rainproof and waterproof protection can be realized for the power distribution cabinet, so that the influence of rainwater on the interior of the power distribution cabinet is avoided; dust in air can be effectively filtered out, so that the influence of the dust on the power distribution cabinet can be avoided while ventilation and heat dissipation are carried out; and a good ice and snow removing function is achieved, and therefore, the storm and snow resisting capacity of the outdoor power distribution cabinet is greatly improved.

The invention belongs to the technical field of rail transit, and discloses a rail vehicle with a carriage air purification function. The rail vehicle comprises carriages and air purification devicesarranged in the carriages, the air purification devices comprise shells, air inlets, air outlets, fans and filters, wherein the air inlets and the air outlets are formed in the shells, the fan are arranged in the shells, the filters are arranged between the air inlets and the air outlets, the filters comprise filter screens, carbon fiber filter layers and graphene-based HEPA filter layers which are sequentially arranged from the air inlets to the air outlets, the air purification devices further comprise dust scraping plates used for scraping dust on the windward sides of the filter screens, the dust scraping plates are movably arranged on the shells through moving mechanisms, and the bottom surfaces of the dust scraping plates are parallel to the windward sides of the filter screens. According to the rail vehicle with the carriage air purification function, a structure which is specially used for clearing accumulated impurities on the filter screens is arranged, so that cleaning by maintenance personnel is facilitated, then the dust filtering efficiency and the dust filtering effect are improved, and the use performance of the air purification devices is ensured.

The invention discloses a biomass windproof and dustproof device having a volute-simulative helical structure. The biomass windproof and dustproof device comprises a flexible windproof and dustproof mesh, a U-shaped support mesh plate, a biomass dust-blocking mesh, a top cover, a support base and a dust storage box. The dust storage box is installed in the support base. The flexible windproof and dustproof mesh is completely pasted to the inner surface of a middle plate of the U-shaped support mesh plate. The biomass dust-blocking mesh is pasted to the end surfaces of two side plates of the U-shaped support mesh plate so that a through hole structure is formed. The upper and lower ends of the through hole structure are respectively connected to the top cover and the support base through positioning screws. The middle plate of the U-shaped support mesh plate is provided with a plurality of small through holes. The biomass dust-blocking mesh is provided with a volute helical through hole. The device utilizes biomass corn stalk fibers as raw materials. Through combination of the volute helical through hole and an enclosed space structure and increasing of particle collision probability, particles in dust-containing gas flows can be filtered and adsorbed so that secondary pollution of particle pollutants is effectively prevented.

The invention discloses a manufacturing method of a percolation device. In order to solve the problems that the clamping and fixing effect is poor and dust cannot be collected, the invention provides the following scheme that the percolation device comprises a base, side plates are fixedly connected to the two sides of the top of the base, a supporting plate is fixedly connected to the tops of the inner sides of the side plates, and a first air cylinder is fixedly connected to the top of the supporting plate; and the output end of the first air cylinder penetrates through the bottom of the supporting plate and is fixedly connected with a connecting plate, the bottom of the connecting plate is fixedly connected with a grinding motor, the output end of the grinding motor is fixedly connected with a grinding disc, and box bodies are fixedly connected to the positions, located at the inner sides of the side plates, of two sides of the top of the base. According to the percolation device, by arranging sliding grooves, sliding wheels and a supporting seat, the stable movement effect is achieved in the using process of a movable plate, the stable performance of the movable plate is improved, and the problem that the movable plate is prone to shaking in the using process is solved.

The invention relates to anti-static jean cloth which comprises jean base cloth, felted yarn and anti-static cloth, wherein the felted yarn is led out of the jean base cloth; the anti-static cloth is formed by blending stainless fibers, inverted subfiber, anti-static synthetic fibre and spun polyester and connected to a lining layer of the jean base cloth; full-cotton cloth is also sewn in the lining layer; the anti-static cloth is connected with the full-cotton cloth by using a knitting strip; and the knitting strip is used for adjusting evenness between the anti-static cloth and the full-cotton cloth. The invention has the advantages that a layer of anti-static cloth is added on the bottom of jean; the anti-static cloth has favorable dust filter performance and anti-static performance; the anti-static performance is durable and efficient and can not be attenuated by daily washing and friction.

The invention belongs to the technical field of textile machineries, and specifically discloses a novel cotton condensing device. The cotton condensing device comprises a cotton condenser housing, wherein a cotton gathering barrel is arranged in the cotton condenser housing; meshes are distributed on the cotton gathering barrel; an involute volute is arranged at the top end of the cotton condenser housing; an external air inlet channel is connected to an inlet of the volute, and the outlet of the volute faces downwards and is connected with the cotton gathering barrel; an air suction port and a dust discharge port of which the air volumes are adjustable are formed on the cotton condenser housing, and the dust discharge port is connected with an external dust filter part. Through an external cotton transportation blower to send air from distance, the original cotton forms spiral cyclone to fall off after passing through the volute, and is separated from impurities such as short fibers in the cotton gathering barrel; the high failure rate of a power transmission part in the cotton condenser of the prior art is conquered; the dust filtering effect of the cotton condensing device is improved; and an air volume adjusting plate is arranged at the air suction port, so that a moderate negative pressure environment is provided for the external dust filter part, and the dust filtering and purification effect is improved.

The invention belongs to the technical field of new energy vehicles, and especially relates to a dust removal device for new energy automotive component cutting. The device is provided to solve the problem of difficult control of the dust removal range of existing dust removal devices. The device comprises a supporting bottom plate and a second supporting plate, first supporting plates are connected to the outer walls of the periphery of the second supporting plate through hinges, water storage pipes are fixedly installed on the outer walls of the tops of the four first supporting plates, second water guide pipes are fixedly installed at the outer walls of the bottoms of the water storage pipes, and water inlet pipes are fixedly installed at the outer walls of one sides of the tops of thewater storage pipes. Second electric telescopic rods are arranged between the first supporting plates and the second supporting plate, and the first supporting plates can be driven by the second electric telescopic rods to rotate in order to conveniently change the opening and closing degrees of the four first supporting plates and convenient realize dust removal in different ranges, so the use convenience and functionality of the device are improved.

The invention relates to the field of non-woven fabrics, and discloses an impregnated non-woven fabric and a manufacturing method thereof, wherein the first fibers include low-melting-point fibers and polyester fibers, and the second fibers include low-melting-point fibers, viscose staple fibers and Polyester fiber, the raw material mass percentage of the first fiber is: low melting point fiber accounts for 5% ~ 20% of the first fiber total amount, polyester fiber accounts for 80% ~ 95% of the first fiber total amount; the second fiber The mass percentage of raw materials is: low melting point fiber accounts for 5%~20% of the total amount of the second fiber, polyester fiber accounts for 80%~95% of the total amount of the second fiber, viscose staple fiber accounts for 5% of the total amount of the second fiber ~15%, the concentration percentage of the polyacrylate is divided into two types: 10% and 25%. In the present invention, the processes of fiber laying, puncturing up and down, heat drying, hot blanching, addition of polyacrylate, drying, and hot blanching are completed. The characteristics of large quantity.

The invention belongs to the technical field of waste gas treatment, and particularly relates to an industrial waste gas secondary treatment device. The device comprises a treatment chamber. A gas inlet pipe is mounted on the side wall of the treatment chamber; a gas outlet pipe is mounted at the other end of the treatment chamber; the interior of the treatment chamber is fixedly connected with a limiting frame; a motor is fixedly connected to the position, corresponding to the limiting frame, in the treatment chamber; an air vent is formed in the position, corresponding to the motor, of the middle of the limiting frame; a dustproof net is fixedly connected to the position, corresponding to the ventilation opening, of the output end of the motor. A layer of dustproof net is additionally arranged in the tank body of the waste gas treatment device, so that dust and impurities in waste gas can be collected when the waste gas passes through the treatment chamber, the problem that the use effect of the post-treatment device is affected due to the fact that the dust and impurities in the waste gas are accumulated in the treatment chamber is avoided, and the service life of the treatment device is greatly prolonged; and the time cost of later use and maintenance is reduced.

The invention discloses a method for producing thin wall plastering mortar for buildings by using artificial stone, marble and granite sawdust solid waste, and the method comprises a rubbing shell, the outer surface of the rubbing shell is fixedly connected with an operation panel, the top of the rubbing shell is sleeved with a splash-proof top plate, the middle of the splash-proof top plate is rotatably connected with a stirring machine, the output end of the bottom of the stirring machine is fixedly connected with a stirring shaft device, and the inner wall of the rubbing shell is fixedly connected with a friction device and an extrusion cavity. The invention relates to the technical field of comprehensive utilization of solid waste. According to the method for producing the thin wall plastering mortar for buildings by using the artificial stone, marble and granite sawdust solid waste, the extrusion cavity and a screening plate are arranged, when the stirring shaft device rotates, the extrusion cavity can enable internal materials to be tightly attached to the stirring shaft device, the material rubbing effect is improved, and meanwhile, an elastic plate can improve the internal mixing effect of the materials through elastic vibration when the materials are extruded.

The invention discloses a stir-frying and dust removing device for roasted food. The stir-frying and dust removing device for roasted food comprises a body, a stirring shaft extending to the outer bottom of the body is arranged in the inner middle of the body, a plurality of stirring blades are arranged in the body and located on the stirring shaft, second electric heating wires are arranged on the stirring blades, the lower end of the stirring shaft is further connected with an air inlet pipe through a rotating joint, a first electric heating wire is arranged in the air inlet pipe, a fan is further arranged at the end of the air inlet pipe, a lifter is arranged on the left side of the body, the top of the body is connected with a dust removing barrel through a communicating pipe, and an exhaust pipe is further arranged at the top of the dust removing barrel. The stir-frying and dust removing device for roasted food is good in roasted food processing effect and capable of effectively removing dust, and application and popularization are promoted.

The invention relates to the field of mechanical equipment, in particular to a novel heat-dissipating and air-permeable speedy door. According to the technical scheme, the novel heat-dissipating and air-permeable speedy door comprises a door panel, an electric cabinet transmitting control signals and a driving device which receives the electric cabinet signals and drives the door panel to ascend and descend accordingly, and the door is characterized in that the novel heat-dissipating and air-permeable speedy door comprises permeable windows and sliding covering devices which are capable of covering the permeable windows, each sliding covering device comprises a sliding chute which is formed in the door panel and sliding plates which are capable of sliding in the sliding chute and covering the corresponding permeable window, the permeable windows are arranged on the door panel, and a filtering device is arranged in each permeable window. According to the novel heat-dissipating and air-permeable speedy door, the door has the rapid ascending and descending function of a common speedy door, and meanwhile a good filtering function and a good heat dissipation function are provided.

The invention relates to the field of mechanical equipment, in particular to a novel high-speed door. According to the technical scheme, the novel high-speed door comprises transparent windows and sliding covering devices capable of covering the transparent windows, the sliding covering devices include sliding grooves formed in a door sheet and sliding plates capable of sliding on the sliding grooves and covering the transparent windows, the transparent windows are arranged on the door sheet, and filtering devices are arranged in the transparent windows. A heat shielding device used for stopping sunlight from irradiating the door sheet for a long time is further arranged outside the door sheet, the heat shielding device comprises a plurality of heat shielding single plates of the same dimension, one ends of the heat shielding single plates are hinged to a fixing shaft together, and the other ends of the heat shielding single plates are hinged to an adjusting shaft together. According to the novel high-speed door, the fast lifting function of a common high-speed door is achieved, and meanwhile the filtering and cooling functions are good.

The invention discloses a no-wash HEPA for a handheld type dust collector. The no-wash HEPA for the handheld type dust collector comprises a glass fiber layer, a modified fiber layer and a sponge layer, wherein the modified fiber layer comprises the following materials in parts by weight: 40 to 80 parts of propylene-vinyl acetate copolymer cellosilk and 20 to 60 parts of copper ammonia cellosilk.Through improvement of the conventional HEPA structure and the material and through introduction of the propylene-vinyl acetate copolymer cellosilk and the copper ammonia cellosilk, the filtering property of the HEPA under small psace is improved and the wind resistance of the HEPA is reduced; meanwhile, the introduced modification layer can effectively improve the flowing stability of airflow inan air flue of the dust collector, can improve the dust filtering effect and can protect a core part in a miniature dust collector; in addition, due to introduction of the propylene in the propylene-vinyl acetate copolymer cellosilk and the introduction of sisal fiber, the dust retention resistance of the HEPA is improved and the HEPA has a no-wash function.

The invention relates to and discloses a noise collection and utilization system for a blower of a bag filter. The noise collection and utilization system comprises three parts, namely a sound receiving area, a sound guiding area and a sound dividing area, wherein the sound receiving area comprises a sound receiving hood, a contraction section and a sound collection section; the sound guiding area consists of an elbow and a linear sound guiding tube; the sound dividing area consists of sound dividing tubes; the hood walls or tube walls of all the parts are all made of a metal material with a bright and clean surface and are 10-30 mm in thickness; a noise reduction layer is formed by wrapping of a 5-10 mm damping layer and a 20-50 mm soft material, arranged outside the metal housings and mainly used for preventing a small amount of noise of the blower from transmission. The noise collection and utilization system can fully collect and guide out the noise of the blower and reduces energy loss of noise as much as possible.

The invention belongs to the field of dust collectors, and in particular relates to a self-regulating dust collector, which includes a housing and a dust collecting hopper. An air intake pipe and an exhaust pipe are fixedly connected to the side wall of the housing. The housing is provided with: an annular groove, an annular The groove is arranged on the inner side wall of the housing; the dust filter plate is fixedly installed in the annular groove, and a plurality of dust filter holes are arranged in an array on the dust filter plate; the sealing plate, the edge of the sealing plate is slidably connected with the side wall of the dust filter plate; Liquid storage chamber, the liquid storage chamber is set on the upper part of the housing, and the liquid storage chamber is filled with detergent; the water absorption ring is fixedly connected to the inner bottom surface of the liquid storage chamber; a plurality of water absorption strips, the upper ends of the water absorption strips run through the housing and The water-absorbing ring is fixedly connected, and the lower end of the water-absorbing strip is fixedly connected with the upper end of the sealing plate; a deformation mechanism is arranged between the multiple water-absorbing strips, and the deformation mechanism includes. The present invention can realize the dynamic adjustment of the dust filter according to the intake air volume, can greatly improve the utilization rate of the dust filter and improve the adsorption effect on dust.

The invention discloses a novel high-efficiency polishing device for optical lens processing, which includes a box body, the left and right sides of the box body are respectively provided with a discharge port and a charge port, and the inside of the box body is provided with vertically arranged An upper positioning device and a lower positioning device, the upper positioning device includes two sets of first circulation mechanisms, the first circulation mechanism includes two first sprockets, and a first chain is connected between the two first sprockets , between the first chains on both sides is connected an upper positioning mechanism arranged at equal intervals along the first chain, the lower positioning device includes two sets of second circulation mechanisms, and the second circulation mechanism includes two second sprockets . The invention realizes grinding in the material conveying process, effectively improves processing efficiency, can effectively absorb flying debris generated in grinding, and can complete automatic cleaning of dust filter nets, saves time and labor and maintains good dust filtering performance.

The invention relates to the technical field of energy-saving radiators, and discloses an energy-saving radiator with a good dust filtering effect and based on a thermal expansion and cold contraction principle. The energy-saving radiator comprises a rack; the interior of the rack is movably connected with a ventilation turbine; the inner wall of the ventilation turbine is fixedly connected with a conical booster pipe; the right wall of the conical booster pipe is inserted with a cold air outlet pipe; the opposite end of the cold air outlet pipe is fixedly connected with a ventilation pipe; and the inner wall of the ventilation pipe is movably connected with a driving shaft. According to the energy-saving radiator with the good dust filtering effect and based on the thermal expansion and cold contraction principle, hot air in the radiator to be cooled is pumped out through the ventilation turbine, the hot air rotates at a high speed in the conical booster pipe and continuously expands after being preliminarily accelerated by the ventilation turbine, and cold air is exhausted from the cold air outlet pipe; and under the action of a cooling turbine, the air is blown to the surface of a to-be-radiated tool through the ventilation pipe, so that the convection speed of the air is increased, the heat exchange efficiency of internal hot air and external cold air is improved, and the radiating effect is better.