105results about How to "Meet environmental emission requirements" patented technology

A process for innocuously treating the used liner of aluminium electrolyzer includes such steps as proportionaly mixing it with the calcium oxide contained ore, SiO2 contained material and bitumite, heat treating in rotary kiln, adsorbing tail gas by alumina, and leaching the treated material by lime milk for secondary reaction. It can greatly decrease the contents of fluoride and cyanide in the treated dregs, which can be used to prepare cement or refractory or for building road.

The invention relates to a device and method for producing sodium bisulfide by utilizing refinery dry gas. Aiming at the gas composition characteristics of the refinery dry gas, the dry gas refining desulphurization process is processed by utilizing an ultra-high gravity technology, and H2S in acid tail gas after dry gas refining desulphurization is selectively removed, so that the content of the purified H2S is over 99 percent, the purified and refined H2S is absorbed for preparing high-purity NaHS by adopting a continuous alkali liquor cycle, the concentration purity is over 42 percent, the process technology is greatly innovated, the investment is saved, secondary pollution is avoided, a process of a traditional out-dated NaHS product can be replaced, the device has a certain economic benefits and high-efficiency resource utilization rate, the H2S in the acid gas is almost recycled completely, the requirements of environment friendliness and emission are met, high social benefits are achieved, and recycling comprehensive utilization of refinery acid tail gas is realized.

The invention belongs to the technical field of recycling grading utilization of municipal solid waste, and particularly relates to a recycling grading utilization and carbon sequestration treatment method for the municipal solid waste. The method is characterized in that a two-section anaerobic fermentation technology, a pyrolysis technology and a landfill technology are adopted in a combined way; and the method has the advantages that the municipal solid waste is innocent and is recycled, and the discharge of CO2 can be reduced by a carbon sequestration technology.

The invention discloses novel disinfectant prepared from quaternary ammonium salt and alcohol. The disinfectant is prepared from alcohol, quaternary ammonium salt, a corrosion inhibitor, a chelating agent and water. The novel disinfectant can be used for killing pathogenic entero becteria and staphylococcus aureus within one minute, wherein the killing log value is larger than 5; the novel disinfectant can be used for killing candida albicans and pseudomonas aeruginosa within three minutes, wherein the killing log value is larger than 5; the novel disinfectant further has an effect of killing aspergillus niger. The novel disinfectant disclosed by the invention is washing-free, has no corrosion to metal products, can be widely applied to sterilizing in the fields such as appliances and food, is free of toxic action on human bodies and animals and suitable for sterilizing the skin of the human bodies and animals, and has a long-lasting bacteriostatic action. When used for sterilizing common articles, the novel disinfectant can replace quaternary ammonium salt disinfectant to shorten the sterilization time to one minute, can take the place of alcohol and iodine disinfects when used for sterilizing the skin, can keep the antibacterial effect for a long time and can effectively protect the skin part from secondary pollution.

The invention discloses an incineration smoke gas ultralow exhaust purification treatment method, including treatment of sludge incineration, garbage incineration, solid waste incineration, hazardouswaste incineration smoke gas exhaust, and treatment of ceramsite kiln and cement kiln cooperated disposal waste exhaust smoke gas, and is also applicable to the treatment of exhaust smoke gas of otherindustrial kiln systems. The treatment device comprises an activated carbon powder spraying/mixing device, a cloth bag dust removing device, a primary alkali liquor spraying device, an ozone spraying/mixing device, a secondary alkali liquor spraying device, a draft fan, a water spraying device, a defogging device, a cooling tower and a chimney in sequential connection. The incineration exhaust smoke gas is connected with the activated carbon powder spraying/mixing device through a pipeline and enters the treatment device system; finally, the purified gas is exhausted through the chimney. Themethod has the beneficial effects that the operation flexibility is high; by aiming at the condition of different concentrations of contaminants in the incineration exhaust smoke gas, the addition ofreagents such as the activated carbon powder, ozone and alkali liquor and the like is regulated, so that the environment-friendly exhaust requirements can be met.

The invention belongs to the technical field of air pollution control, particularly relates to a processing device and method with pre-dedusting as well as desulfuration and denitration. The device comprises a pre-dedusting region, a desulfuration region, a buffer region and a denitration region which are connected in turn from bottom to top, wherein an air inlet connected with a flue is formed under the pre-dedusting region; an air outlet connected with a chimney is formed above the denitration region; the pre-dedusting region comprises a flue-dust retainer and a guide plate located above theflue-dust retainer; a flue-dust collecting region formed by the flue-dust retainer and the guide plate penetrates through the middle of the desulfuration region; the desulfuration region and the denitration region are connected with an ammonia gas conveying pipe and a storage silo for placing active coke; the buffer region includes a mixed ammonia cylinder wall; and the upper part, the middle part and the lower part of the mixed ammonia cylinder wall are respectively equipped with an air deflector, an ammonia spraying tube and a flow equalizing plate. This processing system is low in investment and building cost and operation cost, can switch among a desulfuration and denitration integrated mode, a desulfuration mode and a denitration mode according to components of flue, rapidly improvesflue processing amount through a parallel connection manner of reactors, so as to solve the problem that flue amount of enterprises is too large.

The invention relates to a preparation method of radio frequency glow discharge inductively coupled plasmas of a nano powder material, which comprises the following steps of: firstly, exciting and maintaining high-density radio frequency plasmas with large calibers; secondly, carrying out plasma high temperature chemical reactions to form plasma primary reactants; thirdly, condensing the plasma primary reactants into the nano powder material with high purity by adopting a two-level diffusion tube gradient shock-cooling way; and finally, collecting the nano powder material, and neutralizing the reaction tail gas. The invention achieves the continuous industrial preparation of the radio frequency plasma glow discharge nano powder material, the particle sizes and the distributions of the powder material are easy to control, the particle sizes are in normal distribution in the range of 10-50nm, the powder material is mainly in round shape and has no contamination of functional groups on the surfaces, and the purity is above 9.5%. The invention has the advantages of environment-friendliness of production process, wide application areas of products, and obvious technology values and social and economic benefits.

The invention relates to the technical field of coke oven equipment upgrading, in particular to a NOx control method and device for coke oven stack gas. The device comprises a stack gas main pipe communicated with a main chimney flue of a coke oven and stack gas blowing-in mechanisms arranged above dampers of coke oven stack gas shutters, wherein an induced draft fan is arranged between the stack gas main pipe and the main chimney flue of the coke oven; each stack gas blowing-in mechanism adopts a three-way turn plate switching mechanism, one channel of the mechanism is communicated with the stack gas main pipe, the other two channels are formed above the dampers of two adjacent coke oven stack gas shutters, and the stack gas blowing in direction can be changed through switching of turn plates. According to the NOx control method and device for the coke oven stack gas, the conventional coke oven production equipment is improved, so that the content of emitted NOx is controlled effectively with an air depletion method.

The invention discloses a flue gas conditioning agent for flue gas mercury removal and a composite flue gas purifying method thereof. The flue gas conditioning agent is ammonium bromide powder or ammonium bromide solution. The flue gas conditioning agent is put into a flue of a combustion system at 150-450 DEG C and activated by use of the temperature of the flue gas; the activated flue gas conditioning agent reinforces conversion of the elemental mercury steam to mercury oxide and particle mercury in a flue gas environment, and the activation of the flue gas conditioning agent and the oxidation and adsorption of mercury are performed at the same time; and then the flue gas mercury removal is realized by use of the existing flue gas purifying equipment of the system. According to the flue gas conditioning agent and the composite flue gas purifying method disclosed by the invention, the flue gas is subjected to trace conditioning at specific temperature, and the gas-phase oxidation or gas-solid catalytic oxidation process of the mercury steam in the flue gas environment is reinforced so as to change the state of mercury in the flue gas; and finally, the flue gas mercury removal is realized by use of the existing purifying equipment of the system. The use of an activated carbon-based adsorbent can be avoided, and the flue gas mercury removal is realized by use of the existing equipment while maintaining the reusing value of fly ash.

The invention belongs to the field of dust removal equipment, and discloses a combined dust removal device. The device comprises a cyclone dust collector, a horizontal re-separation segment and a dust removal bag, wherein the horizontal re-separation segment comprises a barrel; the side wall of the inlet end of the barrel is provided with a tube I; the side wall of the outlet end of the barrel is provided with a tube II; a central discharge tube is arranged at the outlet end of the barrel; the outlet of the cyclone dust collector is tangentially connected with the inlet of the barrel through the tube I; the inlet of a bag-type dust collector is tangentially connected with the outlet of the barrel through the tube II. The dust removal device provided by the invention has the advantages of small floor area, small investment, low maintenance cost, small pressure drop and long service life; the dust removing efficiency of the whole set of device can be over 99 percent, the dust removing efficiency of the device is increased, and a good dust removing effect is achieved; the combined dust removal device can meet the current environmental emission requirement, and can be widely applied to dust removal of industrial effluent gas from industrial kilns, boilers, flue gas and the like.

The invention belongs to the technical field of denitration transformation for power plants, and particularly relates to a flue gas denitration transformation method for a coal-fired generating unit.The method comprises the steps that according to the existing arrangement of the tail of a boiler, a SCR reactor is additionally arranged behind a BK shaft at the tail of the boiler, a SCR reactor isadditionally arranged above the inlet flue of an electric dust remover, and the SCR reactors are arranged in the mode of one boiler with two SCR reactors; flue gas is introduced into the SCR reactorsfrom the outlet horizontal flue of a coal economizer, NOx in the flue gas is removed under the combined action of ammonia and catalysts; and the purified flue gas subjected to the above treatment is introduced into an air preheater. According to the method, by adopting the SCR denitration process and transforming corresponding facilities of the boiler, the denitration efficiency is improved, the environment-friendly emission requirements of high standards are met, and the influence of coal burning on the environment is reduced.

The invention discloses a waste liquid treatment recycling system of a stainless steel pickling line. The waste liquid treatment recycling system mainly comprises a regulating reservoir, a precision filter, a neutralizing oxidation pond, an oblique pipe precipitation pond, a sludge concentration pond, a sludge storage pond, an air floatation pond, a press filter, a medium filter, an active carbon filter and a clean water pond, and is characterized in that pickling waste water flows into the regulating reservoir, the regulating reservoir is connected with the precision filter, the precision filter is connected with the neutralizing oxidation pond, the neutralizing oxidation pond is connected with the oblique pipe precipitation pond, the oblique pipe precipitation pond is connected with the sludge concentration pond, the sludge concentration pond is connected with the sludge storage pond, the sludge storage pond extends in two circuits, one circuit is connected to an external mud cake transport device by virtue of the press filter, and the other circuit is connected to a clean water discharge pipe sequentially by virtue of the air floatation pond, the medium filter, the active carbon filter and the clean water pond.

The invention discloses a ceramic filter tube denitration and desulfurization dust remover. A ceramic filter tube (7) is arranged at the left inner end of a dust remover shell body (16); a middle boxbody (6) is arranged at the lower right inner end of the dust remover shell body (16); an upper box body (9) is arranged at the upper inner end of the dust remover shell body (16); an ash bucket (2) is arranged at the lower end of the dust remover shell body (16); a star-shaped ash unloading valve (15) is connected to a lower opening part of the ash bucket (2) through a flange; a venturi tube (8)is arranged at the opening part of the ceramic filter tube (7); the ceramic filter tube (7) and the venturi tube (8) are fixed on a porous plate in the upper box body (9) by utilizing a pressing platethrough bolt connection; a pulse ash cleaning device (11) and an offline valve (10) are mounted at the top of the upper box body (9); a catalyst (20) is arranged in a ceramic fiber filter tube on thesurface of the ceramic filter tube (7). The ceramic filter tube denitration and desulfurization dust remover has the advantages of novel design, simple technology, small occupied area of equipment, small equipment investment and good dust-removing, denitration and desulfurization effects.

The invention relates to oil spraying type multifunctional surface treatment equipment. The inner space of a chamber is divided into a static pressure chamber and a spray chamber; an air outlet of a fresh hot air feeding circulating device is communicated with the static pressure chamber; the lower part of the spray chamber is communicated with an air return hole of the fresh hot air feeding circulating device through a hot air circulating return pipe; a hot air circulating feeding electric valve is mounted on the hot air circulating return pipe; a door is mounted on the front side wall of the spray chamber; three-dimensional lifting operation platforms are arranged on the left and right two sides in the spray chamber, respectively; an air drafting chamber is arranged under each of the three-dimensional lifting operation platforms; a hollow steel grating is arranged at the top of each air drafting chamber; spraying filtering cotton is arranged under each steel grating; an air outlet of each air drafting chamber is connected with an inlet of an oil spraying type paint mist purifying device through an oil-spraying paint mist purifying air-inlet electric valve via an intake pipe; an outlet of the oil-spraying paint mist purifying device is connected with an inlet of an active carbon filtering device through an exhaust pipe; a draining pipe is mounted at an outlet of the active carbon filtering device. The oil spraying type multifunctional surface treatment equipment can reduce the turnover of workpieces, can improve operation environment, can meet the environment-friendly requirement and can save investment.

The invention provides a chlorine and sulfur containing tail gas processing device and a tail gas processing method thereof. The device comprises a heat exchanger, an absorbing tower, a gas-liquid separator, and an adsorption tower; wherein the heat exchanger, absorbing tower, gas-liquid separator, and adsorption tower are communicated in the air passage. The upper section of the absorbing tower adopts a water circulation treatment mode, and a circulating water pump is used to increase the pressure. The lower second of the absorbing tower adopts an alkali liquid circulation treatment mode, the pressure of alkali liquid is increased by a pump, then alkali liquid is pumped into an alkali liquid heater and is heated by the alkali liquid heater; and finally the alkali liquid is introduced to the lower section of the absorbing tower and is cyclically used. The device can recover the thermal energy of tail gas through the heat exchanger; at the same time, the high temperature tail gas, which contains high concentration corrosive mediums such as hydrogen chloride, sulfur dioxide, chlorine gas, and the like, is effectively processed through alkali liquid absorption; and the processed tail gas can reach the emission standards.

The invention discloses multifunctional water quality testing equipment. The equipment includes a water inlet detection port, a flowmeter, a hardness detection sampling pipe, a hardness analyzer, a hardness detection water storage tank, a control unit, a power supply interface, a dissolved oxygen detector, a dissolved oxygen detection chamber, a conductivity tester, a PH value tester, a drainage outlet, a chloride ion detector, a temperature water level detector, a detection equipment body, a third measuring electrode, a temperature pen, a water level sensor, a water level wire harness, a hardness detection head, a chloride ion detection chamber and a conductivity detection chamber. Through the arrangement of the flowmeter, the hardness analyzer, the dissolved oxygen detector, the conductivity tester, the PH value tester, the chloride ion detector and the temperature water level detector, comprehensive detection can be performed on the flow, temperature, water level, hardness, dissolved oxygen, conductivity, PH value and chloride ion parameters of water quality, and therefore, water quality situations can be comprehensively analyzed; and through the arrangement of a cleaning waterinlet, cleaning can be performed on pipelines of the equipment, so that residual impurity components of the equipment after each detection can be clear, and the accuracy of sampling data when the equipment is used again can be ensured.

The invention relates to a steel slag crushing, classifying and sorting continuous treatment device and method. The steel slag crushing, classifying and sorting continuous treatment device comprises afeeding system (1), a hopper (2), a longitudinal high-speed rotation crushing system (3), an iron removing system (4), an air classifying and sorting system (5), a discharging system (6), a materialbin (7), a dust collecting system (8) and a control system (9). Steel slag falls into the high-speed rotation crushing system (3) from the hopper (2), through high-speed rotation and mutual collisionbetween steel rods in the high-speed rotation crushing system (3) and the steel slag, the crushing effect is achieved, the crushed steel slag falls into the sorting system (5), and due to gravity difference, steel slag of different grain size grades are sorted out and enter the material bin (7) from respective material outlets. The whole process is collaboratively and continuously conducted, and the steel slag treatment efficiency is improved.