47results about How to "Meet the environmental protection requirements of energy saving and emission reduction" patented technology

The invention discloses an efficient reburning denitrification device which comprises a decomposing furnace. The bottom of the decomposing furnace is provided with a secondary air inlet and is connected with a rotary cement kiln. The decomposing furnace comprises a main low-nitrogen burner and a reburning burner on the lower portion from bottom to top, and a raw material inlet is arranged at the position of the main low-nitrogen burner. Coal powder in a coal powder bunker enters the decomposing furnace from the main low-nitrogen burner and the reburning burner. A tertiary air inlet is arranged below the raw material inlet and connected with a cooler of the rotary cement kiln. The decomposing furnace comprises an overfire air inlet and an SNCR (selective non-catalytic reduction) spray gun on the upper portion from bottom to top. The overfire air inlet is connected with the tertiary air inlet and the cooler of the rotary cement kiln. The SNCR spray gun is connected with a centrifugal pump and an ammonia water storage tank device. A smoke outlet is arranged at the upper section of the decomposing furnace and connected with a cyclone preheater, an electric dust collector and a chimney. The invention further provides a technical reburning denitrification method by the efficient reburning denitrification device. By the efficient reburning denitrification device and the technical reburning denitrification method, NOx removal efficiency can be improved, sprayed ammonia water is reduced, and denitrification cost of cement enterprises is lowered.

The invention discloses a synthetic jet heat radiating device comprising a heat exchange element, a piston cylinder and a synthetic jet device, wherein the heat exchange element is provided with an inner cavity, and an outer wall corresponding to the inner cavity can be used for installing a heating source and a heat radiating element; the piston cylinder is arranged on the outer wall and is provided with a piston cavity clinging to the outer wall and a piston assembled in the piston cavity; the synthetic jet device comprises a shell in which at least one chamber with an opening is arranged, the chamber is provided with a thin film wall with elasticity, and the thin film wall is in transmission connection with the piston through a piston rod; the piston drives the thin film wall to reciprocate through the piston rod by using heat from a heating source transmitted by the heat exchange element so that compression and expansion periodical change is generated in the chamber and jet is generated at the opening. In the invention, a passive heat radiation mechanism and an active heat radiation mechanism without power consumption are combined, so that a better heat radiating effect can beachieved; in addition, the environment friendly requirements for energy saving and emission reduction are met, therefore, compared with the traditional active synthetic jet device, the synthetic jet heat radiating device has the advantage that the service life of an element is longer.

The invention discloses a bottom-filtration-process slag treatment method for a ferroalloy submerged arc furnace and belongs to the technical field of ferroalloy submerged arc furnace. The method comprises the following steps of making molten slag overflow into a molten slag ditch via a slag tank; performing crushing, water quenching and pelletizing on the slag which flows from the molten slag ditch into a waste slag ditch by high-speed water flow sprayed out of a punching box; making a slag and water mixture flow from the water granulated slag ditch into a buffer tower and continuing to coolthe slag and water mixture; making the slag and water mixture inside the buffer tower directly flow into a filter tank via an outlet device; filtering the water inside the filter tank by using a filter pipe, and conveying the water to a slag treatment water pool by using a water pump; conveying the water inside the water pool to the punching box in order to realize slag punching and cyclic utilization; and grabbing out the water granulated slag from the filter tank by using a water granulated slag grabbing hopper. The method disclosed by the invention is simple in process and reasonable in procedures, commendably guarantees the granulation degree of the slag, realizes more complete slag and water separation, greatly reduces emission of steam, reduces environmental pollution and realizes simple industrial implementation.

The invention relates to the technical field of plastic processing auxiliary agents, in particular to a method for preparing zinc stearate. The obtained product is mainly used as isolating agents in a rubber industry and lubricating and releasing agents in amino molding materials. The method comprises the following steps of: putting stearic acid into a reaction kettle under normal pressure and heating the stearic acid to 125 to 175 DEG C; adding zinc oxide into the reaction kettle in two steps; reacting the mixture under the action of a catalyst, then adding a modifying auxiliary agent into the obtained product and stirring; then discharging, wherein the temperature in the whole reaction process is kept to be 125 to 175 DEG C; and finally crushing the obtained product to obtain the finished product. The zinc stearate prepared by the method has excellent hydrophilicity which is unreachable to an ordinary direct process; moreover, by the method, the magnitude of the hydrophilicity of the zinc stearate is controllable; and the catalyst and the modifying auxiliary agent have no pollution on the environment so as to meet the environment protection requirements of energy saving and emission reduction. The process is simple and easy to implement and has extremely high economic and social benefits, and the application field of the zinc stearate is expanded by the process.

The invention relates to a biomass fuel gas purification apparatus and a purification process, wherein the purification apparatus comprises a composite filter and is characterized by further comprising a cyclone separator. The cyclone separator is communicated with the composite filter through a gas pipeline; the cyclone separator and the bottom of the composite filter are provided with a sewage outfall respectively; and the composite filter has an integral composite structure comprising a water bath spray thrower, a heat exchanger and a dry-type filter. The biomass fuel gas purification apparatus integrates gas purification and filtration, has the advantages of more reasonable and more compact structure, small occupied area for the apparatus, simple process, scientific design, energy conservation and emission reduction, and in particular achieves fuel gasification and canalization for rural biomass waste materials as soon as possible so that the rural civilians can use clean and convenient fuel gas as urban poeple.

The invention discloses a polyphenylene sulfide oligomer recovery method. The method comprises the following steps: S1, collecting a filtrate and a washing liquid, and storing the filtrate and the washing liquid in a filtrate mixing storage tank to form a mixed liquid; S2, pumping the mixed liquid into a mixing filter, and carrying out filtering to form an oligomer filter cake; S3, collecting theoligomer filter cake at the bottom of the mixing filter into a primary-washing stirring tank, adding washing water, carrying out stirring and washing, and allowing the filter cake to enter a primary-washing filter to undergo filtering so as to form a primary-washing oligomer; S4, collecting the primary-washing oligomer at the bottom of the primary-washing filter into a secondary-washing stirring tank, adding washing water, carrying out stirring and washing, and allowing the filter cake to enter a secondary-washing filter to undergo filtering so as to form a secondary-washing oligomer; and S5,collecting the secondary-washing oligomer at the bottom of the secondary-washing filter into a mixing bin, uniformly adding the secondary-washing oligomer into a dryer through a feeder, and performingheating and drying to obtain a recovered oligomer product. According to the method, the oligomer with a certain economic value in the filtrates are recycled through filtering, washing and drying, meanwhile, solid waste emission is reduced, and the environmental protection requirements for energy conservation and emission reduction are met.

The invention discloses a polyphenylene sulfide oligomer recovery method. The method comprises the following steps: S1, collecting a filtrate and a washing liquid, and storing the filtrate and the washing liquid in a filtrate mixing storage tank to form a mixed liquid; S2, pumping the mixed liquid into a mixed filter, and filtering to form an oligomer filter cake; S3, collecting the oligomer filter cake at the bottom of the mixed filter into a primary washing stirring tank, adding washing water, stirring, washing, and filtering in a primary washing filter to form a primary washing oligomer; S4, collecting the primary-washing oligomer at the bottom of the primary washing filter into a secondary washing stirring tank, adding washing water, stirring, washing, and filtering in a secondary washing filter to form a secondary washing oligomer; and S5, collecting the secondary washing oligomer at the bottom of the secondary washing filter into a mixing bin, uniformly adding the secondary washing oligomer into a dryer through a feeder, heating and drying to obtain an oligomer recovery product. According to the method, the oligomer with a certain economic value in the filtrate is recycled through filtering, washing and drying; meanwhile, solid waste emission is reduced, and the environmental protection requirements for energy conservation and emission reduction are met.

The present invention proposes an environmentally friendly process for purifying potassium sulfate to produce tail gas. Tail gas treatment is carried out through tail gas treatment equipment. The tail gas treatment equipment includes tail gas conveying pipelines, graphite coolers, primary washing tower groups, secondary washing tower groups, and primary absorption tower groups. , secondary absorption tower group, gas-liquid separator, acid bucket, hydrochloric acid intermediate tank and water circulation cooling assembly, the process flow of the environmental protection process includes tail gas cooling, B acid production, A acid production, dilute hydrochloric acid production and cooling water circulation, the present invention In view of the problems existing in the existing tail gas treatment, development and improvement can be carried out to produce hydrochloric acid of various specifications. The yield of hydrochloric acid is high, the grade is high, the quality is good, and the market is good. The hydrogen chloride tail gas treated by the present invention has a high absorption rate and meets the discharge requirements. The combination of process water and circulating water saves water for enterprises, meets the production requirements of low-cost and high-efficiency enterprises, and also meets the environmental protection requirements of energy saving and emission reduction.

The invention discloses a synthetic jet heat radiating device comprising a heat exchange element, a piston cylinder and a synthetic jet device, wherein the heat exchange element is provided with an inner cavity, and an outer wall corresponding to the inner cavity can be used for installing a heating source and a heat radiating element; the piston cylinder is arranged on the outer wall and is provided with a piston cavity clinging to the outer wall and a piston assembled in the piston cavity; the synthetic jet device comprises a shell in which at least one chamber with an opening is arranged, the chamber is provided with a thin film wall with elasticity, and the thin film wall is in transmission connection with the piston through a piston rod; the piston drives the thin film wall to reciprocate through the piston rod by using heat from a heating source transmitted by the heat exchange element so that compression and expansion periodical change is generated in the chamber and jet is generated at the opening. In the invention, a passive heat radiation mechanism and an active heat radiation mechanism without power consumption are combined, so that a better heat radiating effect can be achieved; in addition, the environment friendly requirements for energy saving and emission reduction are met, therefore, compared with the traditional active synthetic jet device, the synthetic jet heat radiating device has the advantage that the service life of an element is longer.

The invention relates to a water cooling and supply device, in particular to a water cooling and supply device for coarse grinding heads of ceramic tiles (stone material). The water supply device comprises a water cover surrounding a grinding wheel, the water cover is provided with at least one water outlet which can lead cooling water to a grinding point of the grinding wheel. The water cooling and supply device has simple structure, the grinding wheel is surrounded by the water cover provided with the water outlet, the water outlet can purposely lead the cooling water to the grinding point of the grinding wheel, the grinding wheel is well cooled and grinding swarf is washed away in time, which improves the grinding efficiency, prolongs the service life of the grinding wheel, improves the grinding quality, saves a great deal of cooling water, and meets the environmental protection requirement of energy conservation and emission reduction.

The invention relates to a biomass gasification device and a gasification technology. The device comprises a blower, a gas generator, a gas purifying device, a pressure vessel and a user end gas transmission pipeline network, and is characterized in that the device further comprises a water ring compressor and a moisture separator, and the gas purifying device comprises a cyclone separator and a composite filter device. The invention transforms low heat value biomass materials and wastes to high heat value clean and environment-friendly biomass gas, has the advantages of simple technology, scientific design, and energy conservation and emission reduction; and the invention has a wide application range, particularly causes biomass wastes in rural areas to achieve gasification and channelization as soon as possible, and enables civilians in the rural areas to use clean and convenient gas as the same as urbanites.

The invention provides a compact industrial tail gas fine particulate matter removal and cooling device and method, comprising a flue gas pretreatment unit and a cyclone separation unit, the flue gas pretreatment unit includes a gravity settling chamber and a steam phase change chamber, the The lower end of the steam phase change chamber communicates with the upper part of the gravity settling chamber. The steam phase change chamber is divided into a steam phase change section and a turbulent flow agglomeration section from bottom to top. The device adopts an integrated design of a particle pretreatment unit and a cyclone separation unit, especially It is the first time that steam phase change agglomeration and turbulent flow agglomeration treatment technologies are integrated into the particle pretreatment unit, which realizes the removal of coarse particles and the agglomeration of fine particles in the dusty tail gas, and the cyclone separation unit of the present invention adopts a reflective screen The advanced axial-flow cyclone separator structure can effectively improve the removal efficiency of fine particles; the overall structure of the device is compact, the floor space is small, and the operation is convenient, which solves the problem of high-efficiency and energy-saving removal of fine particle pollutants in industrial tail gas.