33results about How to "To achieve the purpose of emission" patented technology

The invention discloses a brine waste water processing reusing device and method. The structure of the device comprises a preprocessing system 1, an ultrafiltration processing system 2, a reverse osmosis processing system 3 and a negative pressure spray evaporation processing system 4. The device has the advantages that the device can be suitable for water draining, circulating water sewage draining, boiler sewage draining, demineralized water station resin regenerating water draining and the like of brine waste water primary treatment; organic pollutants and hardness in brine waste water are removed, and salinity is lowered; (3) the purposes of reusing and zero emission by efficient evaporating on thick water are achieved; (4) preprocessing, ultrafiltration and reverse osmosis are combined organically; (5) rolling type reverse osmosis and flat plate reverse osmosis are combined, and decrement is concentrated to the maximum degree; and (6) energy is saved, efficiency is high in low-temperature negative-pressure spray evaporation, and the purposes of reusing and zero emission are achieved.

The invention relates to a 2,4-dinitraniline continuous ammonification production technology, which is characterized in that 2, ,4-dinitraniline and ammoniacal liquor are taken as raw materials, the raw materials are reacted at temperature of 160-170 DEG C and pressure of 0.5-1.0 MPa, and then continuously added in an ammonification reactor; when the raw materials exceeds a discharge hatch, and are successively flowed to two auxiliary reactors, wherein the reaction temperature is controlled at 160-170 DEG C, and the reaction pressure is controlled at 0.5-1.0 MPa, reaction time of an ammonification reactor is 42 minutes, and reaction time of each auxiliary reactor is 15 minutes. The production technology has the advantages of high production efficiency, low energy consumption, environmental protection, economy, low labor intensity and safety, waste heat during an ammonification reaction process can be fully used, by-product ammonium chloride can be simultaneously recovered, no waste water is generated, and the production technology has the advantages of green production and good economic benefit.

The invention discloses an APT (ammonium paratungstate) production wastewater recycling method. An APT production line which can realize zero emission of wastewater and is high in water recycling rate can be established, tungsten, molybdenum and other useful metals in a tail liquid can be recycled, loss of tungsten can be avoided, and the added output value can be increased, so that the economic benefit is increased; one part of the discharged tail liquid is recycled to be used for pulping, the other part is evaporated, steam condensate is recycled to be used for preparation of a back washing agent, and thus, zero emission of wastewater is realized. A conventional steam heating manner is changed in a caustification process, a good effect can also be realized through storage tank standing treatment, and the utilization rate of lime can reach 80%, so that steam is saved. Produced APT can meet the notational 0-level standard.

The invention relates to a wastewater treatment process, and in particular relates to a power plant flue gas desulfurization wastewater treatment process. The process comprises three steps as follows: I, carrying out plate frame filtration on desulfurated wastewater in a power plant, and implementing microporous filtration so as to obtain a clear filtrate without suspended solids; II, concentrating the clear filtrate by virtue of an electrodialysis membrane unit having a pH value regulating function, and recycling concentrated fresh water; and III, carrying out microporous filtration on a mixture in a concentrated water room, recovering filter residue, crystallizing the filtrate in a calcium sulfate crystal seed crystallizing device, and separating out calcium sulfate crystal. The wastewater treatment process disclosed by the invention is simple in process, and capable of effectively recovering heavy metals and achieving a purpose of zero discharge of desulfurized wastewater in a real sense.

The invention discloses a device for cleaning the inner wall of a factory building for secondary treatment, which includes a sliding guide rail and a cleaning range adjusting device installed on the upper surface of the sliding guide rail. The sliding guide rail is fixedly connected to the inner wall of the factory building in the horizontal direction; The equipment used to clean the inner wall of the factory building for secondary treatment also includes an attachment cleaning device located above the sliding guide rail, and a harmful substance filtering device located at one end of the sliding guide rail; the attachment cleaning device drives the platform up and down through a hydraulic cylinder. Moving, the platform drives the cleaning brush to clean and adjust the cleaning brush to fit the inner wall of the factory building through the telescopic adjustment of the motor. The harmful substance cleaning device moves the harmful substance into the reaction box through the docking of the interface, and matches a certain proportion of chemical solvent through the adjustment of the regulating valve And react to harmful substances. The invention has the advantages of simple structure and strong practicability.

The invention relates to a boiler, in particular to a fire grate free boiler. A shell has a sandwich structure and is internally provided with a water jacket, and the cavity of the shell is internally provided with an upper partition board, a left horizontal pipe and a right horizontal pipe; two ends of the left horizontal pipe and the right horizontal pipe are all fixedly connected with the inner wall of the shell and communicated with the water jacket; the position of the lower end of the upper partition board is higher than the positions of the left horizontal pipe and the right horizontalpipe and the upper part of a hearth is divided into two combustion chambers by the upper partition board; the left horizontal pipe and the right horizontal pipe are respectively and fixedly connectedwith a left inclined pipe and a right inclined pipe, respectively extend towards the left side and the right side, are fixedly connected with the inner wall of the shell and communicated with the water jacket. The fire grate free boiler adopts the inclined pipes with special structures to support coal to replace the fire grate, and omits an independent fire grate, so the structure is simpler, thecoal is fully combusted, tail gas pollution is less and the aims of saving energy and protecting environment are achieved.

The invention discloses a method for brewing soy sauce and grains, which comprises the following steps: A1, preparation of raw materials; A2, charging and steaming; A3, mixing: cooling the steamed soybeans rapidly, and mixing them evenly with fried wheat flaps; A4, inoculation into koji; A5, koji making; A6, solid-state low-salt "double mold" fermentation; A7, thin mash fermentation; A8, soy sauce sterilization; A9, clarification, inspection; A10, solid-state sauce fermentation. In addition to producing the required soy sauce, the fermented soy sauce is combined with the crude enzyme solution to carry out the traditional process of drying and fermenting to further decompose the active ingredients in the raw materials, so as to obtain a rich sauce with a special taste and aroma of traditional soybean paste and sweet noodle sauce The finished soybean paste is used as a base for preparing soybean paste and compound seasoning. So as to achieve the purpose of no waste residue discharge in the production of soy sauce, and realize the purpose of energy saving, emission reduction and full utilization of food in the food manufacturing industry.

This invention is an oil mist clearing machine group, it belongs to separating technique field. It is mainly consisted by air intake section, cleaner section and air outtake section. The cleaner section is consisted by liquor resisted section and catching section, the resisted section is consisted by stainless steel compaction, and liquor resisted module combined by flexed liquor resist board and frame. The catching section is combined by catching net and frame of multi-layer stainless steel, catching module formed by batten compacted. Steam clean comb is set in machine group and the comb is connected to steam pipe, valve group is set on the pipe and blow-off pipe is set at bottom of the group. The product in this invention is easy to tinertoy, detach, detect and transmit, it can online spray steam for cleaning. It is produced as technique quick rhythm, its cleaning is auto, replacing is convenient, cleaning efficiency is high. It can be widely used to clear oil mist and gas with wet dust, especially to large emulsion oil mist when cold-rolling mill is working to reach the goal of clean exhaust gas.