65results about How to "No risk of clogging" patented technology

The invention relates to a photocatalysis-plant synergy water purifying method for fish-farming water, which comprises the following steps that: 1) sewage in a fish pond is pumped into a filter tank by a diving pump, solid impurities are filtered by sponge foam, and the intercepted solid impurities are discharged by a blowdown valve; 2) clear water filtered by sponge foam falls into a nacreous glass catalytic reaction curtain which is vertically hung on the side wall of the filter tank to contact and react with a photocatalysis material, wherein the nacreous glass catalytic reaction curtain is formed by connecting glass balls in series and in parallel, and the surfaces of the glass balls are burnt and plated with a TiO2 series catalytic material; and 3) the catalyzed water falls into a plant culture tank; and the water flows into the fish pond after pollutants in the water are reduced. The method has the advantages of good natural light transmission, high mass transfer efficiency, no oxygen supplement and nitrogen release power consumption and no blockage, and the practical characteristics of low cost and continuous work. Except for the water pollution treatment for circulating water fish-farming, the method can also be applied to low concentration water treatment of the occasions of environmental protection, civicism, landscape greenbelts and the like.

This invention discloses an oil and smoke filtering device which includes at least two filtering pans that set vent holes. The holes on the border filtering pans set alternatively. Its character is in that the around of the vent holes has turned-over edge which faces the inside of the ventilator. It has such merits as good filtering effect, low wind loss, low noise, long non-maintain time which especially fits to the oil and smoke ventilator.

The invention provides a method for removing heavy metal arsenic from low-temperature flue gas by a sodium salt method. The method comprises the following steps: taking sodium bicarbonate with strongoxidation action and adsorption action as a flue gas purification and adsorption oxidizing agent bed layer, adsorbing particle-state arsenic Asp in the flue gas by the pores of sodium carbonate with high specific surface area which is generated through thermal decomposition of sodium carbonate, oxidizing a trivalent arsenic compound in the flue gas by a large amount of active oxidizing substancesgenerated through reaction of the sodium bicarbonate and SO2 in the flue gas to be converted into a pentavalent arsenic compound with high water solubility, enabling the flue gas after oxidation adsorption to enter a spraying tower, performing pyrolysis to adsorb the oxidized sodium bicarbonate and fresh sodium bicarbonate mixed solution spraying liquid and further removing various forms of arsenic from the flue gas so as to purify the arsenic in the flue gas. The method for removing the heavy metal arsenic from the low-temperature flue gas by the sodium salt method, which is provided by the invention, is simple in process, small in investment, low in operating cost and non-corrosive to flue gas purification equipment.

The invention discloses a positive and negative separation type LED component, an automobile lamp and a flashlight. The positive and negative separation type LED component is provided with an electric conduction and heat conduction positive electrode plate, an electric conduction and heat conduction negative electrode plate and an insulator located between the electric conduction and heat conduction positive electrode plate and the electric conduction and heat conduction negative electrode plate, the electric conduction and heat conduction positive electrode plate is in electric heat connection with an anode of an LED lens, and the electric conduction and heat conduction negative electrode plate is in electric heat connection with a cathode of the LED lens. Compared with the prior art, the LED component involved in the invention overcomes the technical prejudice of electric heat separation, breaks through the traditional bottleneck on the heat conducting property and greatly improves the working efficiency.

The invention relates to a device, characterized in that both the output cylinder (1) and the tubular support (4) are arranged in a winding position in a defined direction of rotation, such that the wire passes through the bottom of said output cylinder to the point of contact, and is wound onto the top of the tubular support, and the formation of the bobbin and the separation movement towards the removal device (7) are carried out in a direction opposite to the direction of arrival of the wire, and for dispensing The means (6) of said tubular support remains fixed.

The invention relates to a piezoelectric MEMS ink-jet printing head and a manufacturing method. An SOI silicon wafer is used as a processing raw material of a vibration plate and a nozzle plate; structures of a pressure cavity, a drainage hole and a nozzle hole of the printing head are all integrally designed on the nozzle plate; a metal thin film layer is manufactured before the pressure cavity is manufactured, and the metal thin film layer is used as a masking layer for ICP dry etching of the pressure cavity; in addition, the masking layer serves as a bonding metal layer when the vibration plate and the nozzle plate are bonded in the later period. Compared with the existing manufacturing method of the MEMS ink-jet printing head, the manufacturing method of the piezoelectric MEMS ink-jetprinting head has the advantages of fewer overall process steps, fewer related process types, higher dimensional accuracy and higher efficiency, the technical problems that an existing piezoelectric MEMS ink-jet printing head manufacturing method relates to a large number of process types, the quality of a vibration plate is difficult to guarantee, and potential risks generated by bonding are large are solved.

The invention provides an electronic device. This electronic device is equipped with an air filter at the air intake port where the cooling air is introduced, and even if the power is cut off at any time, the automatic cleaning operation of the air filter can be performed reliably. This electronic device is configured to install an air filter at an air intake port through which cooling air is introduced, and to automatically clean the air filter to prevent clogging of the air filter. Then, when the power supply is cut off during the cleaning operation process of the air filter, the unfinished cleaning operation process will be completed during the subsequent operation of the electronic device. For example, an automatic cleaning operation of an air filter is performed when the operation of a projection type video display device as an electronic device is started. In addition to this operation, when clogging of the air filter is detected, an automatic cleaning operation of the air filter may be performed.

The invention relates to a method for achieving a 3D decoration processing effect on a printed product surface in a jet printing mode. The method comprises the following steps that (1) water-based UVcuring ink is printed on the surface of a substrate through a jet module; (2) the substrate enters a drying module to be subjected to hot drying; and (3) the substrate enters a curing module to be subjected to UV curing. The method further comprises the steps that (4) the substrate is subjected to alumite transferring; and (5) the substrate is subjected to UV curing again. According to the method,a device is simple, a process is simple, operation is easy, environmental protection and safety are achieved, and decoration processes such as 3D hot stamping, 3D local UV glazing, 3D shiny particledecoration, digital indentation and braille printing on the printed product surface can be met.

The invention belongs to the field of sewage treatment, and relates to a treatment system for wastewater of a kitchen waste aerobic degradation treatment plant. The water outlet of a wastewater tank is connected with an oil separation primary sedimentation tank; the water outlet of the oil separation primary sedimentation tank is connected with a three-phase separation centrifuge; the water outletof the three-phase separation centrifuge is connected with a cooling tower; the water outlet of the cooling tower is connected with an adjusting tank; the water outlet of the adjusting tank is connected with an cavitation air flotation machine; the water outlet of the cavitation air flotation machine is connected with a pressurized dissolved air flotation machine, the water outlet of the pressurized dissolved air flotation machine is connected with a two-phase anaerobic reactor, the water outlet of the two-phase anaerobic reactor is connected with an up-flow sludge bed-filter, and the water outlet of the up-flow sludge bed-filter is connected with a sequencing batch activated sludge reactor for enhanced denitrification. Oil separation primary sedimentation and the three-phase separation centrifuge are serially connected, meanwhile, a double-air-floatation system is adopted, so that the oil, water and solid three-phase separation efficiency is improved, and the suspended matter removalrate and the oil removal rate can reach 90% or above.

The invention discloses a preparation method for a macromolecule emulsion coating agent for a drilling fluid. The mass ratio of a potassium acrylate aqueous solution, a 2-acrylamide-2-methpropanesulfonic acid potassium salt aqueous solution, a 50% acrylamide aqueous solution, white oil, an emulsifying agent SP-80 and a 8% ethylene diamine tetraacetic acid (EDTA) aqueous solution is (25-30): (5-10): (30-40): (23-28): (2.5-3.0): (0.5-1.0). The potassium acrylate aqueous solution, the 2-acrylamide-2-methpropanesulfonic acid potassium salt aqueous solution, the 50% acrylamide aqueous solution, the white oil, the emulsifying agent SP-80 and the 8% ethylene diamine tetraacetic acid (EDTA) aqueous solution are emulsified in a reacting kettle, the reacting kettle is placed in water bath to be subjected to water-bath heating until the temperature reaches to 40 DEG C, and 0.5%o hydrogen peroxide is dropwise added in the reacting kettle until the reaction is finished. The macromolecule emulsion coating agent prepared by the method has the advantages that the macromolecule emulsion coating agent has good coating capability, inhibitive capability, thermostability, salt-resistant and anti-pollution capabilities and lubricating capacity, the coefficient of friction resistance of a mud cake can be effectively reduced, the emulsion particle size is equal to the size of general pore space of low-permeability and ultra-low permeability oil fields, the plugging is effective, the protective effect on an oil layer is evident, the discharge is easy, damage to the oil layer is absent, and the macromolecule emulsion coating agent is suitable for water base and oil base drilling fluid systems.

The invention relates to an open hole well external inclusion expansion packing sand control method. An external inclusion high-expansion packing sand control screen is tripped into a voided space, afree extension external inclusion continuously stretches outwards under the action of high pushing pressure difference of sand-carrying fluid solid particles until the outer wall of the free extensionexternal inclusion is fitted with an open hole well wall, and packing sand control is realized. According to the sand control method, a high-thickness, high-filling-compactness and high-stability packing strip is formed in immediate vicinity of wellbore of a target sand control layer, and a sand barrier is high in overall sand control strength and long in sand control validity period. The overallsand control strength of the sand barrier is improved, the water content of an oil-gas well can be effectively reduced, and the sand control validity period is prolonged.

The purpose of the present invention is to overcome problems of difficult material discharging, complex subsequent operations, and the like in the old process. According to the present invention, a new process adopting a small kettle to carry out controllable pre-polymerization is adopted, and is used in production of a HG pipe oil product drag reducer polymer. The preparation method for the drag reducer polymer can comprises the following steps: 1) adding an inert solvent, a small amount of a monomer, an assistant catalyst and a main catalyst to a pre-polymerization autoclave, and carrying out a polymerization reaction at a low temperature, such that the catalyst particles are suspended in the polyolefin solution to form a slurry with moderate viscosity; and 2) adding a monomer, an assistant catalyst, an external electron donor, and the material inside the pre-polymerization autoclave to a small reaction vessel according to a certain amounts, and carrying out polymerization.

The invention provides a dehumidification solution regeneration device. The dehumidification solution regeneration device comprises an ultrasonic nebulizer, a vacuum pump, a high-frequency alternating current power supply, an electromagnetic induction coil, a condenser and a dehumidification solution containing magnetic powder. The dehumidification solution mixed with the corrosion-resistant micro-nano magnetic powder is subjected to ultrasonic atomization regeneration under the vacuum condition, the evaporation rate of liquid drops of the dehumidification solution is increased under the vacuum condition, the boiling point of the liquid drops of the dehumidification solution is reduced, and the gas-liquid contact area of the liquid drops of the solution atomized by the ultrasonic atomizer is remarkably increased; the boiling point can be reduced, the gas-liquid contact area can be increased, the regeneration rate can be increased, meanwhile, non-contact heating is conducted on dehumidification solution liquid drops containing the magnetic powder through electromagnetic induction heating, and the heat utilization efficiency can be improved. The method can obviously reduce the energy consumption in the solution regeneration process and improve the regeneration rate, and is a dehumidification solution regeneration technology with remarkable advantages.

The invention relates to a biomass gas decoking device and a comprehensive biomass utilization system. The device comprises a first decoking chamber, a second decoking chamber, a waste liquid collector, a gas inlet, a gas outlet and a first liquid drain port; first adsorption packing is arranged in the first decoking chamber, and second adsorption packing is arranged in the second decoking chamber; the gas inlet is formed below the first decoking chamber; the gas outlet is formed above the second decoking chamber; the first liquid drain port is formed in the bottom of the device; a liquid collecting port of the waste liquid collector is formed between the first decoking chamber and the second decoking chamber; the gas outlet end of the first decoking chamber is communicated with the gas inlet end of the second decoking chamber. The system is formed by connecting a carbonization furnace, a first separating unit, a collision separator, a condensing unit, the biomass gas decoking device, a draught fan, a second separating unit, a mixing gas tank, a water seal, a dryer and a gas storage cabinet in series. According to the biomass gas decoking device and the comprehensive biomass utilization system, the decoking effect is excellent, no wastewater is generated, and the equipment has no blocking risk.