70results about How to "Avoid discharge pollution" patented technology

The invention discloses a preparation method for manufacturing building board by utilizing mine tailing residue. The following raw materials are used by weight ratio: 30-75% of tailing residue and 25-70% of additive; brine with the weight percent concentration of 25-28% is utilized to stir the material into paste, the paste is placed into a mould to be rolled and moulded, and the tailing residue is one or more than one of gold slag, copper slag and ferrum slag. The invention utilizes tailing residue to produce building board, massive tailing residue is consumed, pollution harm of tailing discharge is solved, the produced building board has low cost and high strength, tailing residue can be made into various building boards by utilizing the technology, and various building section bars, stone pillar, brick and lattice prism used for historic building restoration as well as modern city sculpture, roman column pendant, external decorative wall, leisure chair, rail and sidewalk lattice brick can be cast.

The invention discloses a wet flue gas desulphurizing method utilizing carbide slag slurry and a device thereof. The method comprises the following steps: 1) firstly, concentrating carbide slag slurry into carbide slag seriflux the concentration of which is 20-30%; 2) adjusting the concentration of sulphur content in flue gas, controlling the concentration of the carbide slag seriflux within the range of 28%-35% when the sulphur content in flue gas is larger than 8000mg/m3, controlling the concentration of the carbide slag seriflux is within the range of 22%-28% when the sulphur content in flue gas is between 4000mg/m3 and 8000mg/m3, controlling the concentration of the carbide slag seriflux within the range of 15%-22% when the sulphur content in flue gas is smaller than 4000mg/m3, regulating to proper concentration and then entering an absorption tower to carry out desulfuration reaction; 3) carrying out preliminary desulfuration reaction on flue gas which comes out from a deduster and firstly enters a pretreater; and 4) carrying out reaction on flue gas and sprayed and atomized carbide slag slurry in an absorption tower to realize rapid heat exchange, mass transfer and reaction, removing most of the entertainment liquid in the flue gas after reaction by a demister and discharging the flue gas from the top of the absorption tower. The invention can be applied to flue gas desulfurization of coal-fired boilers of a chemical plant, thereby achieving the purposes of treating waste by waste and utilizing comprehensively.

The invention relates to the technical field of the resource utilization of livestock and poultry breeding waste, and discloses a continuous hydrothermal carbonization system for livestock and poultryexcrement. The continuous hydrothermal carbonization system comprises a fermentation tank, a high-pressure sludge pump, a heater, a carbonization reactor, a cooler, a storage tank, a sludge pump anda solid-liquid separator, wherein the fermentation tank, the high-pressure sludge pump, the heater, the carbonization reactor, the cooler, the storage tank, the sludge pump and the solid-liquid separator are communicated in sequence; the fermentation tank is also communicated with a first gas collection device through a pipeline; the storage tank is also communicated with a second gas collection device through a pipeline. The invention also discloses a continuous hydrothermal carbonization process for the livestock and poultry excrement. The continuous hydrothermal carbonization process comprises the following steps of fermenting the pretreated livestock and poultry excrement in the anaerobic fermentation tank, then continuously inputting into the heater, the carbonization reactor and cooler through power provided by the high-pressure sludge pump, and separating a temperature-lowered carbonization product through the solid-liquid separator to obtain hydrothermal carbon and carbonized liquid. The system is used for treating the livestock and poultry excrement by adopting a continuous hydrothermal carbonization method to prepare the hydrothermal carbon, meanwhile, is used for obtaining the by-product carbonized liquid, and have the advantages of being convenient to operate, easy to maintain, low in production cost, zero-release in pollutant and low in energy consumption, and thelike.

The present invention relates to microwave plasma device and method for preparing diamond film and etched carbon film. The microwave plasma device includes at least one magnetron as the microwave source, one rectangular waveguide, one impedance regulator, one microwave resonant cavity, one quartz tube reactor inside the microwave resonant cavity and one circuit-shorting piston on side of the resonant cavity. The preparation process of diamond film includes the following steps: setting the chip on the chip table, running the vacuum pump and raising the work voltage of the magnetron gradually to generate plasma; introducing carbon containing work gas, regulating the impedance regulator to reach the maximum microwave power, working for 20-40 min to nucleate; further introducing carbon containing work gas, working stably for 2-5 hr to form diamond film on the chip. Similarly, etched carbon film may be prepared.

The invention relates to a manufacturing method of plant fibre products, which comprises the steps: pulverized substances containing textile plants are poured into a banburying kneader and chemical pretreatment solution is added, so the fibre pretreatment chemical modification is realized simultaneously when mechanical physics modifying is realized; after entering into an expansion extruder for expansion modification, the pulverized substances are added with various additives and fillings, which are banburied and kneaded together, and the banburying kneading substance is rolled into particles by a particle rolling machine; or plant fibre subjected to banburying kneading chemical modification and various additives and fillings are directly and together banburied and kneaded and then are extruded and produced to form particles or extrusion sectional materials by the expansion extruder; the produced particles or sectional materials can be used for producing plant fibre products of various types and performances and plant fibre products of sheets, sectional materials, paper, membranes, and the like by utilizing the prior plastic injection machine, extruder, blow moulding machine, rubber refining machine, calander, hot press, and equipment and technology principles of microwave and infrared, steam drying, and the like so as to replace plastic, plastic foam, woodworks, paper and membranes.

This invention relates to a treatment method of mother liquid from alkyl esterification composing glyphosate. This method mainly reclaims TEA, condenses alkali mother liquid to get off large amount of byproduct soldium chloride, after which adds ammonium bicarbonate in the alkali mother liquid, fully reacts, filters to collocate glyphosate solution. This invention can not only get rid of the alkalization problem cause by too much sodium chloride in glyphosate, and also improves the medical effect of this solution collocated by this method, and lower the cost and save the energy consumption.

The invention discloses a production method of isocyanuric acid, in particular relates to a method for producing isocyanuric acid by adopting fully-enclosed continuous four-stage vapour pressure differential reaction. The production method of the isocyanuric acid is characterized in that after isocyanuric acid fine material and sulfuric acid the weight percent of which is 25 percent are evenly mixed, the hydrolysis reaction is generated in sequence by a closed four-stage pressurizing reaction kettle under the action of vapour heating, and feed liquid enters a cooling reaction kettle for being cooled after the reaction is ended, therefore, the production method of the isocyanuric acid has the advantages of not only effectively utilizing energy sources and saving cost but also greatly reducing the smoke discharge amount, saving coal and electricity and greatly improving the production efficiency.

The present invention relates to an efficient environmental-protection liquid fuel, particularly to a liquid cleaning environmental-protection diesel fuel and a preparation method thereof. The liquid cleaning environmental-protection diesel fuel is prepared from the following raw materials according to a certain weight ratio, wherein the optimal weight ratio of oleic acid to methanol to methylal to water to ammonia water to n-butanol to dimethyl carbonate is 40%:20%:10%:8%:8%:6.5%:7.5%. The preparation steps comprise: 1, selecting methanol, methylal and water, pouring into oleic acid to mix, and then adding ammonia water; 2, completely mixing the components in the step 1, and carrying out a static reaction for 5 min to spare; 3, selecting n-butanol and dimethyl carbonate, and carrying out a mixing reaction to spare; 4, adding the mixture obtained in the step 2 to the mixture obtained in the step 3, carrying out slight stirring for 10-20 min, taking 50% of the obtained solution to spare; and 5, mixing any one material selected from 0# international diesel fuel, -10# international diesel fuel and -20# international diesel fuel and the solution, and carrying out slight stirring for 10-20 min to obtain the liquid cleaning environmental-protection diesel fuel. The liquid cleaning environmental-protection diesel fuel has characteristics of strong power, low emission, wide application range and long shelf life.

The invention discloses a probiotic feed additive for realizing zero discharge of manure waste. The feed additive for realizing zero discharge of manure waste is characterized by comprising Candida utilis, Bacillus lentus, Bacillus licheniformis, Lactobacillus delbrueckii, Lactobacillus plantarum, Lactobacillus reuteri, and Aspergillus oryzae. The bacterial strain matching used by the probiotic feed additive of the invention has the advantages of improving animal immunity and reducing the risk of disease caused by livestock, does not use antibiotics, and is healthy and environmentally friendly.

The present invention proposes a detection circuit for the internal resistance of an oxygen sensor based on high-frequency injection, including a high-frequency signal shaping circuit, a frequency-voltage conversion circuit, and a power supply module that supplies power to the detection circuit, wherein the high-frequency signal input is high A high-frequency signal shaping circuit, the output end of the high-frequency signal shaping circuit is electrically connected to the input end of the frequency-voltage conversion circuit, and the output end of the frequency-voltage conversion circuit outputs a voltage signal amplitude corresponding to the internal resistance Ri of the oxygen sensor; The frequency-to-voltage conversion circuit is electrically connected to the internal resistance Ri of the oxygen sensor. The detection circuit of the internal resistance of the oxygen sensor based on high-frequency injection provided by the present invention can accurately determine the internal resistance of the oxygen sensor by detecting the internal resistance of the oxygen sensor in real time, optimize the output voltage of the oxygen sensor, and then accurately calculate the air-fuel ratio .

The invention provides a method for preparing isooctyl nitrate by recovering waste acid. The method comprises: A) adding 98% sulfuric acid into waste acid to obtain waste acid with a sulfuric acid concentration of 90-95%, wherein the mass concentration of the sulfuric acid in the waste acid is 80-85%, and the mass concentration of the nitric acid in the waste acid is 2-6%; B) adding nitric acid into the waste acid with the sulfuric acid concentration of 90-95% to obtain a mixed acid raw material, wherein a mass ratio of the nitric acid in the mixed acid raw material to the waste acid obtainedin the step A) is 1:(1.5-4); and C) pumping the mixed acid raw material and isooctyl alcohol into a micro-channel reactor, and carrying out a reaction to obtain isooctyl nitrate. According to the invention, the product isooctyl nitrate can be prepared by using the waste acid, and no other impurities are introduced, so that the product quality is good; the problem of nitrogen oxide emission pollution caused by post-treatment of nitric acid-containing waste acid is solved; and the nitric acid in the waste acid can be reused so as to reduce the unit consumption of nitric acid.

The invention relates to a nitrate-water separating device. The nitrate-water separating device comprises a thermal cleaning machine water tank and a nitrate quenching tank, wherein a saliferous liquid outlet pipe of a thermal cleaning tank is connected to the thermal cleaning machine water tank, the saliferous liquid outlet pipe of the thermal cleaning tank is connected with a saliferous cleaning liquid, and a pipe pump is connected between the saliferous liquid outlet pipe of the thermal cleaning tank and a saliferous cleaning liquid inlet pipe; the saliferous cleaning liquid inlet pipe leads to a fin group tube of a heat exchanger and the fin group tube of the heat exchanger is fixed in the nitrate quenching tank through a heat exchanger base support; a water vapor collecting cover is arranged above the fin group tube of the heat exchanger and connected with the thermal cleaning machine water tank through a non-saliferous water vapor outlet pipe; a concentrated saline solution accumulating funnel is arranged under the fin group tube of the heat exchanger, and a concentrated saline solution valve of the heat exchanger is arranged at the outlet end of the concentrated saline solution accumulating funnel. The nitrate-water separating device is capable of either saving energy or reducing emission, and is also capable of recycling resources and energy sources.

The invention relates to a novel automobile energy-saving clean fuel and a preparation method thereof. The prior automobile clean fuel and highly-clean gasoline fail to perfectly solve the automobile use performance on the technical prescription. The novel automobile energy-saving clean fuel contains 5-90 parts of methanol, 10-80 parts of clean oil, 2-10 parts of hydrogenation pentene, 3-20 parts of methyl tertiary butyl ether, 5-20 parts of chemical lighter hydrocarbons, 2-6 parts of mixed ctane, and 6-20 parts of coal chemical light oil. The automobile- energy-saving clean fuel is used for substituting gasoline.

The invention discloses a deburring device for a stamped chain baffle blade, and relates to the technical field of machining. The invention aims to solve the problems of a roller method used for current deburring of small stamped parts that time and labor are consumed; a large amount of water and abrasive are consumed; and water material and sewage emission pollutes the environment. The deburringdevice comprises a reversing guide rail mechanism, two guiding groove plates and two abrasive belt mechanisms; the two abrasive belt mechanisms are separately horizontally arranged at different heights; an upper end of each abrasive belt is fixedly connected with the corresponding guiding groove plate; an S-shaped material guiding groove is formed in a lower end surface of each guiding groove plate; an upper end of the reversing guide rail mechanism is connected with a material outlet end of the S-shaped material guiding groove in the upper end abrasive belt mechanism; a lower end of the reversing guide rail mechanism is connected with a material inlet end of the S-shaped material guiding groove in the lower end abrasive belt mechanism; each abrasive belt mechanism comprises an abrasive belt, a servo motor and two groups of belt wheels which are parallelly arranged; an output shaft of each servo motor is connected with one group of the corresponding belt wheels; and every two groups ofthe belt wheels are connected through the corresponding abrasive belt. The deburring device is used for deburring machining of small stamped parts.

The invention relates to equipment and a method for preparing constant-pressure fuel gas, and provides the equipment and the method for preparing the fuel gas in a clean, high-efficient and energy-saving manner. The equipment comprises a feeding device, a burning radiation heat transfer device and a convection heat transfer device, wherein the feeding device comprises a hot-blast stove and a coal mill; the burning radiation heat transfer device comprises a burner which is arranged at the bottom of the device, a water cooled wall which is arranged on the inner wall of the device, and a fuel gas outlet and a steam-water mixture outlet which are formed in the upper part of the device; the convection heat transfer device comprises an over-heater, a steam generator and a coal economizer. By the equipment and method disclosed by the invention, most of high-temperature fuel gas and heat energy of high-temperature molten slag inside the burning radiation heat transfer device are recycled; through convection heat transfer, high-quality overheat steam is produced, so that energy consumption is saved to the maximum, and the cost of the fuel gas is generally reduced.

A Chinese medicine for treating corn is prepared from Chinese angelica root, safflower, wolfberry bark, Chinese gall and sesame oil.

The invention discloses a tobacco baking room achieving full utilization of heat energy, and belongs to the technical field of tobacco baking facilities. The tobacco baking room comprises a heat supply chamber and a tobacco baking chamber which communicates with the heat supply chamber, wherein a heat exchanger, a dust removal box and a purifying device are arranged in the heat supply chamber; thedust removal box and the purifying device are arranged at the bottom of the heat supply chamber; a smoke fire inlet, which communicates with a smoke fire channel of a combustion furnace, is formed inthe outer end of the heat supply chamber; an inlet of the heat exchange communicates with the tail end of a heat collection drum; the front end of the heat collection drum communicates with the smokefire inlet, and a smoke outlet of the heat exchanger communicates with the inlet of the dust removal box or a chimney via a three-way valve and a pipeline; the inlet of the purifying device communicates with the outlet of the dust removal box; the purifying device is composed of a medium-efficiency filter layer, a high-pressure electronic dust collector and an activated carbon honeycombed filterlayer which sequentially communicate with each other; and the outlet of the purifying device communicates with an inner cavity of the heat supply chamber and is provided with an airflow control valve.According to the tobacco baking room provided by the invention, dust in smoke is removed via the tail gas purifying device, and the smoke is recycled to bake tobacco after harmful gas is adsorbed; therefore, the tobacco baking room has the characteristics of achieving full utilization of heat energy, avoiding pollution, reducing energy consumption and the like.

The invention provides a purification device for automobile tail gas. The purification device comprises an engine exhaust pipe, an engine air inlet pipe, exhaust particle conveying pipes, a particle separator, a superfine particle filter, a three-way catalytic purifier, a temperature reductioner, a smoke eliminator, a gas purification box and a purified gas exhaust pipe, wherein the engine exhaust pipe is connected with the particle separator; the particle separator is connected with the superfine particle filter; the particle separator and the superfine particle filter are connected with the engine air inlet pipe through the exhaust particle conveying pipes; the superfine particle filter is connected with the three-way catalytic purifier; the three-way catalytic purifier is connected with the gas purification box; and the gas purification box is connected with the purified gas exhaust pipe. According to the purification device, the structure is reasonable, the cost is relatively low, and the purification effect is remarkable.