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

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 high-salt iron phosphate liquid waste zero-emission treatment device. The device structurally comprises a pre-treatment (PT) system, a reverse osmosis (RO) treatment system and an evaporative crystallization (VC) treatment system. The high-salt iron phosphate liquid waste zero-emission treatment device has the advantages as follows: the device is designed for high salt of the high-salt iron phosphate liquid waste, the high-salt iron phosphate liquid waste is subjected to pre-treatment to remove part of suspended solids and is subjected to reverse osmosis desalination, concentration reduction and reverse osmosis producing water recycling, reverse osmosis concentrated water is subjected to evaporative crystallization treatment finally, condensate water produced through evaporative crystallization is recycled, waste salt is conveyed outwards, and the purpose of zero liquid emission is achieved. The high-salt iron phosphate liquid waste zero-emission treatment device has the specific advantages as follows: pre-treatment, reverse osmosis and evaporative crystallization are organically combined; 2, the reverse osmosis is adopted for concentration reduction, so that the cost of follow-up evaporative crystallization is reduced; 3, an evaporative crystallization technology combining falling film evaporation and MVR (mechanical vapor recompression) is adopted, energy is saved, the efficiency is high, and the operation cost is reduced; 4, the purposes of water recycling and zero liquid emission are achieved.

The invention discloses a fermenting method utilizing soy sauce and grains fully. The method comprises the steps of A1 preparation of raw materials, A2 charging and steaming of raw materials, A3 mixing, wherein steamed soybeans are cooled quickly and are evenly mixed with stir-fried wheat kernels, A4 inoculation and starter preparation, A5 starter propagation, A6 solid-state low-salt 'double-mildew' fermentation, A7 dilute mash fermentation, A8 soy sauce sterilization, A9 clarification and checkout and A10 fermentation of solid-state sauce paste dried dew. Except the soy sauce required by production, sauce paste is enabled to be dense to prepare enzyme liquid and perform traditional technological dried dew fermentation, so that active ingredients in the raw materials are further disintegrated, and accordingly a bean-kernel sauce finished product with heavy sauce flavor and special taste and fragrance of traditional soybean paste and sweet soybean paste is obtained and used as a basic material of the soybean paste and composite seasonings. Accordingly, the purpose of no waste residue discharge in the soy sauce production is achieved, and the purposes of energy saving, emission reduction and full utilization of the grains in food manufacturing industry are achieved finally.

The invention discloses a water environment processing system of aquatic culture, comprising a microstrainer, a protein separator, a denitrification degasser and an ozone generator which is connected with the protein separator. A water outlet pipe of the denitrification degasser communicates with an aquatic culture pond. A pipe communicating the denitrification degasser and the aquatic culture pond is provided with a thermostat to keep constant temperature of the water therein, a denitrator to remove nitrate from the water, and a total alkalinity regulator to regulate the pH value of the water environment. Solid-liquid separation of the culture water in the aquatic culture pond is realized by the microstrainer, the dissolved organic matter separation by the protein separator, and the poisonous ammonia nitrogen compounds and nitrous compounds decomposition by nitrobacteria and nitrite bacteria in the denitrification degasser. The processed culture water is recycled into the aquatic culture pond for use. The bacteria and other pathogen microbe are removed by the ozone generator to achieve the aim of culture water zero release.

The invention provides a lean burning system, method and an engine. The lean burning system comprises a high pressure spraying unit, an ignition unit, an air inlet unit, an exhaust unit, a combustion chamber and a piston. The piston can reciprocate in the combustion chamber. The high pressure spraying unit, the ignition unit, the air inlet unit and the exhaust unit are arranged on the top of the combustion chamber. The high pressure spraying unit comprises a high pressure hydrogen sprayer which is an umbrella-shaped spraying oil atomizer, and the high pressure hydrogen sprayer is used for spraying umbrella-shaped hydrogen spray directly to the burning chamber. The air inlet unit comprises an air inlet door and an air inlet flue connected with each other. The exhaust unit comprises an exhaust door and an exhaust channel connected with each other. The ignition unit is used for burning a fuel in the combustion chamber. The lean burning comprises at least one lean burning system. The lean burning method is applied to the engine. The system can low emission and even zero emission of NOx and the heat efficiency is improved.

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 discloses a biomass pure oxygen combustion power generation system and method. The method comprises the steps that hydrogen and oxygen are obtained through water electrolysis, and the oxygen is fed into a pure oxygen combustion boiler; the oxygen and fuel are burnt in the pure oxygen combustion boiler, generated original flue gas is discharged to a flue gas purification system, the heat generated by combustion of the biomass fuel is fed into a steam turbine through steam of a steam pipeline to do work, a generator of a power plant is driven to generate power, meanwhile, power is supplied to a water electrolysis hydrogen production system, and heat energy conversion of combustion of the biomass fuel is achieved; and the flue gas purification system processes the original flue gas to obtain solid waste and purified flue gas, the purified flue gas is discharged into a carbon dioxide capture system, the purified flue gas is treated to obtain pure carbon dioxide, and the pure carbon dioxide is collected, stored and utilized. According to the biomass pure oxygen combustion power generation system and method, residual electricity in production of energy sources such as abandoned wind, abandoned light and abandoned water is converted into the oxygen and hydrogen energy, the oxygen is adopted to support combustion of the biomass fuel, the generated heat, waste materials and waste gas are stored, energy conversion is achieved while the emission amount of the carbon dioxide can be reduced, and negative emission of carbon is achieved.

The invention provides a sewage treatment device with high practicability. The sewage treatment device comprises a base and a controller, wherein a first housing is arranged at the left side of the top end of the base; a second housing is arranged at the right side of the top end of the base; the first housing is connected the second housing through a water pipe with a water pump; the water pump is arranged at the top end of the base and is electrically connected with a controller; a support plate is horizontally arranged between the first housing and the second housing and is arranged at the upper part of the water pump; the controller is arranged at the top of the support plate; trundles are arranged at four corners of the bottom end of the base; a filter chamber is formed in an internal space of the first housing; a sewage inlet is formed in the top of the first housing. Through the design of a hydraulic machine, a hydraulic plate and a first box door, the sewage can be thoroughly filtered, a lot of sundries, such as sludge, left on the net can be filtered, the hydraulic plate moves towards the left through the hydraulic machine, and the sundries, such as the sludge, are discharged from the first box door.

The invention relates to a low nitrogen oxide heat accumulating type flat burner, and relates to the field of heat treatment fuel industrial furnaces. A heat accumulating body is installed in a vertical shell, an air inlet is formed in the top of the heat accumulating body, a vertical ventilation hole below the heat accumulating body communicates with a horizontal ventilation hole, and the other end of the horizontal ventilation hole is provided with a spraying nozzle of a horn-shaped gradually-widening structure; an air rotational flow device is installed at the connecting position of the vertical ventilation hole and the horizontal ventilation hole, a natural gas pipe is coaxially installed in the horizontal ventilation hole, one end of the natural gas pipe penetrates a shell to be connected with a natural gas inlet, the other end of the natural gas pipe extends out of the spraying nozzle, a plurality of guide blades are installed in the positions, at one end of the natural gas inlet, in the natural gas pipe at intervals and are fixed through a center shaft, and a plurality of layers of natural gas spraying openings are formed in the positions, at one end of the spraying nozzle,of the pipe wall of the natural gas pipe in the tangential direction at intervals. The burner is small in size, large in power, less in nitrogen oxide emission, good in energy-saving effect and convenient to install.

The invention relates to a novel semi-dry flue gas desulphurization technology, which is characterized in that: (1) appropriate equipment types are selected during equipment selection; (2) processing procedures are designed according to designed equipment parameters; (3) the processing procedures are operated according to operating parameters. With the technology, harmful acidic components such as SO2 are subject to a reaction with a neutralizer, such that sulfate, or the like, is produced. During the processes, acidic gas components are turned into solid salts, such that the gas state acidic components are removed from gas, and the gas is purified. Therefore, a purpose of meeting a national discharging standard is achieved.

The embodiment of the invention provides a water-cooling gas furnace core and a vacuum gas-fired hot water boiler comprising the same. The water-cooling gas furnace core comprises a first clamping flange, a heat exchange tube cluster and a second clamping flange, the heat exchange tube cluster is arranged between the first clamping flange and the second clamping flange to jointly form a wall face restraining smoke circulation, the heat exchange tube cluster at least comprises a first heat exchange tube cluster and a radiation heat dissipation tube cluster, and the first heat exchange tube cluster and the radiation heat dissipation tube cluster are arranged on the wall face. And a heat exchange medium is packaged in the heat exchange tube cluster. According to the embodiment, the average heat exchange coefficient can be increased, deep cooling of high-temperature flue gas is achieved, ultralow NOx emission is guaranteed, and meanwhile the heat utilization efficiency is greatly improved.

The invention relates to a dust collector, wherein a through pipe is designed, a plurality of separation layers are arranged in the through pipe through separation plates, each separation plate slightly and downwardly tilts, and each separation layer position is provided with a spraying faucet. The dust collector of the present invention has advantages of simple structure, less investment and significant dust removal effect, and is one of the ideal dust removal equipment.

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 internallyprovided 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 innerwall 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 water treatment process for corn starch processing wastewater. Wastewater with sodium hydrogen sulfite generated after corn soaking is filtered, impurities are separated out, the wastewater sequentially enters a first-stage evaporator, a second-stage evaporator, a third-stage evaporator and a fourth-stage evaporator, and water evaporation treatment is conducted, so that sodium hydrogen sulfite is separated from the water and a condensed sodium hydrogen sulfite solution is obtained; condensed water obtained by distillation is mixed with concentrated alkali liquor in a stirring tank, and then is mixed with the concentrated sodium hydrogen sulfite solution in a spraying tank for neutralization through spraying, finally treatment is conducted in an aerobic AO treatment pond and discharging is conducted after the standard is met. The technology separates out sodium hydrogen sulfite from water through a physical way, and then the separated water is mixed with alkali liquor for neutralization with sodium hydrogen sulfite, so that not only is the cost of wastewater treatment reduced, but also the wastewater can be used for purification treatment, and the purpose of discharging is achieved.

The invention discloses an electronic double-fingerprint-lock poison and anesthesia medicine management cabinet. The cabinet comprises a shell, a top box is fixedly installed at the top of the shell, a containing groove is formed in the shell, a protective door is movably installed on the front face of the shell, a main fingerprint lock and an auxiliary fingerprint lock which are used for being locked with the shell are fixedly installed on the front face of the protective door, the main fingerprint lock and the auxiliary fingerprint lock each comprise two fingerprint modules and an electronic lock, handles are fixedly installed on the front faces of the main fingerprint lock and the auxiliary fingerprint lock, buttons are fixedly installed on the front faces of the handles, a control panel is fixedly installed on the front face of the shell, a draught fan located in the top box is fixedly installed on the top of the shell, an air inlet pipe extending into the containing groove is fixedly installed at the air inlet end of the draught fan. According to the electronic double-fingerprint-lock poison and anesthesia medicine management cabinet and system, a user can perform classified storage more conveniently, management of the user is facilitated, safety and protection performance are better, and the cabinet and the system are more convenient for the user to use.