389results about How to "Not easy to accumulate dust" patented technology

The invention relates to a split wall mounting type air conditioner indoor machine comprising a shell, a front panel, a heat exchanger, a defrosting tray, a draught fan, an air inlet, an air outlet and an air duct, wherein the front panel is arranged on the front part of the shell; the heat exchanger and the draught fan are arranged in the air duct formed between the shell and the front panel; the defrosting tray is positioned below the heat exchanger; the air outlet is arranged on the lower part of the front panel or at the bottom of the shell; and an air supply and guide plate is arranged on the air outlet. The split wall mounting type air conditioner indoor machine is characterized in that the air inlet is arranged on the upper position of the front panel; and a louver grille is arranged at the air inlet. The invention is suitable for more installation spaces and positions without supplying air from the top of the shell, dost not have the problem of dust accumulation and diverts air flows of the air supply and guide plate by adopting the heat exchanger, thereby improving the uniformity of the air flow distribution of the heat exchanger and enhancing the integral heat exchange efficiency of the heat exchanger.

The invention discloses a device and a method for removing dust from converter smoke by a dry method and recycling waste heat and belongs to the technical field of comprehensive utilization of the converter smoke. The device comprises a converter, a vaporizing and cooling flue, a gravity settling chamber, a flue, a heat exchanger, an electrostatic dust remover, an axial flow fan and a smoke diffusing tower or a gas chamber, wherein the gravity settling chamber is connected with the converter through the vaporizing and cooling flue and is connected with an efficient heat pipe exchanger through the flue; the heat exchanger is connected with the electrostatic dust remover through the flue; the electrostatic dust remover is connected with the axial flow fan through the flue; the axial flow fan is connected with the smoke diffusing tower or the gas chamber through the flue; and the lower ends of the gravity settling chamber, the efficient heat pipe exchanger and the static dust remover are all provided with an ash discharge port. The device and the method are suitable for all converters and have the advantages of improving the dust removing effect compared with the OG method, making the emission index of smoke concentration lower than 20 mg/m<3>, greatly saving the cooling water and recycling a large amount of physical heat of the smoke.

The present invention relates to a virtual reality glasses capable of extending and retracting a headband. The virtual reality glasses comprise a virtual reality glasses shell, the headband and a telescopic mechanism which is removably arranged on the virtual reality glasses shell. The telescopic mechanism is connected to the headband and is used for extending and retracting the headband. By using the above structure, the virtual reality glasses have the advantages that the virtual reality glasses are convenient to use, the headband is connected to the telescopic mechanism, the telescopic mechanism can provide the energy of winding the headband, and thus the extension and retraction of the headband can be conveniently realized.

The invention relates to a paint brushing construction method, which sequentially comprises the following steps of brick wall base surface cleaning, base layer brushing, putty priming and surface layer rolling coating. According to a method adopted in the base layer brushing step, firstly, a brick wall base surface is moistened through water spreading, a layer of cement paste is brushed, then, cement mortar is used for brushing, the first layer brushing thickness is 0.08 to 0.1cm, the second layer brushing thickness is 0.05 to 0.08cm, then, the scraping leveling is carried out through a darby, and finally, the floating leveling is carried out through a wood float. According to a method adopted in the putty priming step, the priming is carried out in two layers, the first layer putty priming thickness is 0.3 to 0.5cm, the second layer putty priming is carried out after 22 to 26 hours, the priming thickness is 0.2 to 0.3cm, and two work procedures of grinding leveling machine and sand paper are adopted for grinding leveling after the natural maintenance. According to a method in the surface layer rolling coating step, firstly, a layer of paint is brushed on the putty surfaces primed in the former step, the paint rolling coating is carried out once again after 3 to 5 hours, and then, the maintenance is carried out. The surface layer brushed according to the construction method is smooth, flat and uniform without cracks, in addition, convex-concave corners of wall posts are made into micro arc shapes, the appearance is attractive, simple and compact, and the dust accumulation cannot easily occur.

The invention discloses a production method of water-in-water colorful paint containing color sand. The production method comprises the following steps: (a), preparing a protection glue solution; (b), producing basic slurry; (c), matching the color of the basic slurry; (d), performing color point granulation; (e), producing coating gloss oil; (f), producing finished paint. Granite-shaped particle containing particles are formed on the surface of the paint produced by the method, imitated-marble granite paint can be prepared from the paint, formed patterns are simple, artistic and elegant, and the paint prepared by the method is level in surface and not easy to form ash deposition, can keep the overall appearance longer, and has stain resistance; the special coating gloss oil can keep the color on the surface of the paint to be permanent and fresh, and has weather resistance; the paint is high in water resistance and rot resistance, is neither absorbed by a wall surface nor damaged in rainy days, and can protect the overall shapes of buildings.

The invention relates to a high-precision electronic belt scale, in particular to a constant weight feeder. The high-precision electronic belt scale is characterized in that a rectangular metering scale frame is fixed to a body frame, one end of each weighing sensor is connected with a lead screw arranged on the metering scale frame, the other ends of the weighing sensors and the body frame are fixed through bolts, and mounting cushion blocks with the inclination identical with that of the body frame are arranged between the weighing sensors and the body frame. The metering scale frame is formed by welding six pieces of flat iron, the two sides, perpendicular to the direction of metering carrier rollers, of the metering scale frame are formed by welding outer flat iron and inner flat iron, clamping grooves are formed in the upper edge of the inner flat iron, and the two ends of the metering carrier rollers are clamped with the corresponding clamping grooves respectively and are fixed through bolts. The problem that a common constant weight feeder is not high in measurement precision is solved, the measurement precision can reach the level 0.1, meanwhile, materials of the metering scale frame arranged in order to improve the measurement precision are light, dust accumulation in the structure is not prone to happening, and long-term belt stability is facilitated.

The invention is applicable to the field of air cold medium pre-heating and particularly relates to a self-supporting wide gap heat exchanging element. The self-supporting wide gap heat exchanging element comprises a plurality of plate pairs which are overlapped layer by layer; each plat pair comprises upper and lower plate sheets which are arranged oppositely; a plurality of rows of convex ripples and concave ripples are distributed on the upper surfaces of the plate sheets along the same axis direction; the convex ripples and concave ripples are obtained by upwards and downwards pressing and molding the plate sheets; the convex ripples and concave ripples are distributed at intervals; the positions of the convex ripples and concave ripples on the upper plate sheets in the plate pairs correspond to the positions of the convex ripples and concave ripples on the lower plate sheets in the plate pairs; one group of opposite edges of the plate sheets are upwards folded and are transited into planes; the other group of opposite edges of the plate sheets are downwards folded and are transited into planes; the two adjacent folding edges in each plate pair are welded to form an air channel; the two adjacent plate pairs are symmetrical up and down, and the adjacent folding edges between the two adjacent plate pairs are welded to form a flue gas channel. The self-supporting wide gap heat exchanging element has the advantages that a wide gap channel can be combined, dirt and dust are not easy to deposit, the resistance fall also can be reduced and the heat exchanging efficiency is sufficiently improved.

The invention discloses a vertical coal dust corner tube boiler, which comprises a burner, a boiler body, an air preheating device, a waste heat water tank, a convection bank, an upper collecting box, a top collecting box, a boiler barrel and a lower collecting box. The lower collecting box is arranged at the bottom of the boiler body, and the upper collecting box and the top collecting box are arranged on top of the boiler body and communicated through a steam communicating pipe. The vertical coal dust corner tube boiler is characterized in that the burner is arranged at the bottom of the boiler body which adopts a vertical film type water cooling wall structure, four lowering pipes are arranged at four corners, and two ends of the lowering pipe and the film type water cooling wall are communicated with the upper collecting box and the lower collecting box respectively. The convection tube bundle is arranged outside the film type water cooling wall, the top of the convection tube bundle is communicated with a boiler chamber smoke outlet, and the bottom of the convection tube bundle is communicated with the waste heat water tank. The vertical coal dust corner tube boiler has the advantages of being compact in integral structure, simple in appearance display, small in covered area, low in steel consumption, big in boiler water circulation pressure difference and safe and reliable in water circulation and the like.

The invention relates to an acoustic structure and a design method thereof. The acoustic structure includes a perforated plate layer, a resonance type metamaterial layer and a back plate layer which are sequentially disposed, wherein a first cavity is formed between the perforated plate layer and the resonant type metamaterial layer, a second cavity is formed between the resonant type metamateriallayer and the back plate layer, a first resonant sound absorber is formed between the perforated plate layer and the first cavity, a second resonance sound absorber is formed between the resonance type metamaterial layer and the second cavity, if the second resonant sound absorber is in a resonant state, the vibration response amplitude of the back plate layer is close to zero. The acoustic structure is advantaged in that the acoustic structure is simple and thin in structure and is easy for assembling and maintenance.

The invention relates to a high-strength pure polytetrafluoroethylene gradient coating filter material, which comprises base cloth, and is characterized in that the base cloth is a polytetrafluoroethylene base cloth; a polytetrafluoroethylene coarse fiber layer and a polytetrafluoroethylene superfine fiber layer are pricked on the polytetrafluoroethylene base cloth; and a polytetrafluoroethylene film is coated on the polytetrafluoroethylene superfine fiber layer. The high-strength pure polytetrafluoroethylene gradient coating filter material has the characteristics of high and low temperature resistance, high acid and alkaline resistance, high humidity resistance, good chemical stability, high filtration efficiency, quick filtration speed, long service life and the like, can be used in various bag-type dusters for flue gas purification, dust removal, dust treatment and material recovery, and has wide application scope.

The invention discloses a three-return-stroke powder steam boiler. The three-return-stroke powder steam boiler comprises a boiler barrel, a hearth, a burnout chamber, a convection tube bundle, tail heat exchange equipment, a combustor, a slag falling device, a lower header and an upper header, wherein the lower header is arranged at the bottom of a boiler body; the upper header is arranged at the top of the boiler body; the combustor is arranged at the front part, the top, the bottom or the side part of the hearth of the boiler; the boiler body has a full-film type water-cooled wall structure, and four main downcomers are arranged at four corners; the convection tube bundle is arranged in a convection tube bundle flue, the convection tube bundle flue is longitudinally arranged, and the height of the convection tube bundle flue is equal to that of the hearth; the upper and lower ends of the convection tube bundle, the main downcomers and a film type water-cooled wall are communicated with the upper header and the lower header respectively; the burnout chamber and the hearth are longitudinally arranged abreast in a back-to-back way, and the height of the burnout chamber is equal to that of the hearth; the hearth, the burnout chamber, the convection tube bundle flue and the tail heat exchange equipment are sequentially conducted in series; two-stage combustion-supporting and denitration secondary air is distributed in the hearth. The three-return-stroke powder steam boiler has the characteristics of long flue gas flow, complete fuel combustion and high heat exchange efficiency.

The invention discloses an LED (light-emitting diode) street lamp using a lamp shell as a mounting interface support structure. The LED street lamp comprises a lamp shell (101) which is molded by stamping a metal plate, wherein the lamp shell (101) comprises a support panel which is folded to a plurality of blocks; a mounting interface is arranged on the support panel; an LED bulb (102) is arrangd on the mounting interface; and the lamp shell (101) is fixed on a lamp pole (108) through a lamp pole fixing member. The LED street lamp disclosed by the invention has the advantages of being simple in structure, low in cost and rapid, inexpensive and convenient to mount, use and maintain and hard in fault magnification. According to the LED street lamp using the lamp shell as the mounting interface support structure, the bulb of the LED street lamp, the lamp and a lighting control product are independent in production and use, therefore, production links of the LED street lamp can be greatly reduced and mass production is realized, and the LED street lamp using the lamp shell as the mounting interface support structure is beneficial for application and large-scale industrialization of LED energy-saving lighting products.

The invention relates to a cloth-unfolding wheel structure of a cloth unfolding mechanism for a cloth paving machine and belongs to the technical field of clothes machinery. The cloth unfolding mechanism for the cloth paving machine comprises a fixing rod, a left supporting plate, a right supporting plate and a plurality of cloth-unfolding wheels, wherein the fixing rod is arranged on the cloth paving machine; the left supporting plate and the right supporting plate are arranged on the fixing rod; the cloth-unfolding wheels are the same in structures and are respectively arranged on the left supporting plate and the right supporting plate; the cloth-unfolding wheels on the left supporting plate and the cloth-unfolding wheels on the right supporting plate are distributed in a splayed form. The cloth-unfolding wheel structure is characterized in that each of the cloth-unfolding wheels comprises a nylon rod, a wear-resisting foam gasket, a rotating shaft and a shaft base, wherein the wear-resisting foam gasket coats the outer layer of the nylon rod; a shaft hole is formed in the middle of the nylon rod along the axial direction; the middle part of the rotating shaft penetrates through the shaft hole; the two ends of the rotating shaft extend out of the shaft hole and are respectively mounted on a pair of shaft bases through fastening parts; and the shaft bases are fixed on the supporting plates. The cloth-unfolding wheel structure has the advantages of simple structure, long service life and excellent cloth-unfolding effect, dust is difficult to accumulate, and cleaning and maintenance are convenient.

The invention discloses a marine clean air conditioner, which mainly solves the technical problems such as adaptability to marine conditions and the like. The invention has the technical scheme that an inner plate of a machine body is made of stainless steel resisting chemicals as well as corrosion of marine environment air; and the inner plate of the machine body is fixed on an obtuse-angle frame of an obtuse-angle structure. The marine clean air conditioner is applicable to ships.

The embodiment of the invention discloses a two-phase cooling device used for achieving natural heat dissipation and air cooling, and effectively improving efficiency of the natural heat dissipation and performance of wind and sand prevention. The two-phase cooling device comprises a condenser and a fan. The fan is arranged at the top or the bottom of the two-phase cooling device, and the condenser is arranged in the two-phase cooling device in an inclined or perpendicular mode. The two-phase cooling device further comprises a first air opening formed corresponding to the fan in position, and the condenser is arranged between the fan and the first air opening. Shutters are arranged around the condenser and connected through link mechanisms. An air cylinder is further arranged on the shutters and used for controlling the shutters to open or close. The two-phase cooling device further comprises a second air opening formed in the position the same as that of the fan. A gravity shutter is installed on the air outlet of the fan. Through control over the two-phase cooling device, the two-phase cooling device can be made to form a natural heat dissipation state or form a forced air cooling air channel.