87results about How to "Zero pollution discharge" patented technology

The invention discloses cation high-performance size which is made from the following raw materials: corn starch, hydroxides, trimethylamine hydrochloride and persulfate through a hybrid reaction, wherein corn starch accounts for 80%-95% by weight, calcium hydroxide and/or magnesium hydroxide account(s) for 1%-10% by weight, trimethylamine hydrochloride accounts for 1%-15% by weight, and persulfate accounts for 0.1%-15% by weight. The cation high-performance size has the advantages of strong adhesive ability, good film forming property, tough size film, and excellent elasticity; the flexibility (fatigue endurance) is improved by 3-4 times in comparison with common modified starch size; the cation high-performance size is excellent in wear-resisting and anti-aging properties; and the size has good flowability under the condition of normal temperature, and is stable in viscosity. Polyvinyl alcohol is not used. When pure cotton yarns are sized during spinning, 60-count yarns of common tightness do not need polyvinyl alcohol, and when polyester or pure cotton yarns higher than 60-count are sized, no polyvinyl alcohol is needed or only a small amount of polyvinyl alcohol is needed, so that desizing is easy, the size waste is easy to process and causes small pollution to the environment; and zero pollution emission is realized in a production process.

The invention discloses a double-motor coupling driving electric tractor and a control method thereof. The tractor comprises a storage battery pack 1, a battery management system 2, a whole vehicle controller 3, a coordinating controller 4, a main motor controller 5, a main motor 6, an auxiliary motor controller 7, an auxiliary motor 8, a power coupling gearbox 9, a differential mechanism 10, a power output shaft 11, driving wheels 12, a steering wheel 13 and a frame 14, wherein the main motor 6 and the auxiliary motor 8 are arranged at the input end of the power coupling gearbox 9, the outputend of the power coupling gearbox 9 has two paths of power output, and one path of power is output to the differential mechanism 10 and then transmitted to the two driving wheels 12 to drive the electric tractor to run; the other path of power is output to the power output shaft 11 to drive the electric tractor PTO to work. The electric tractor can achieve zero-pollution discharge and meet the power requirements of different operation loads under different working conditions, the working efficiency of a driving system is improved, and the cruising ability is enhanced.

The invention discloses an automatic spheroidization device for producing spherical graphite, which mainly comprises an automatic material supply device, a powder system, a spheroidization system, a dust recovery system and a material collection system, wherein materials enter the powder system from the automatic material supply device and after being processed, and enter the spheroidization system and the material collection system in turn; the whole process is carried out in a sealed pipe in sequence; a vacuum exhaust fan is used for providing power; and in a production process, the efficiency is high and no pollution is generated. The device can realize the fully-automatic control in a whole process from material supply to powder making to spheroidization to separation to product recovery to dust recovery; the prepared graphite powder is spherical material; the surface of the graphite powder has openings; the values, which are preset before production, of the tap density, specific surface area and size distribution can be achieved; the product quality is stable; the yield can be improved by more than three times; over 40 percent of energy can be saved; over 60 percent of cost can be saved; and dust leakage and high noise are prevented.

The present invention provides an urban house refuse gasification melting incineration treatment method and its equipment. It is characterized by that the high-temperature air obtained from waste heat of smoke produced by recovering, gasifying, melting and incinerating refuse can be introduced into gasifying furnace and incinerator furnace, and can be used as air required for refuse gasification and combustion-supporting air required for melting and incinerating refuse, so that it can ensure refuse stable gasification and complete combustion, and can completely solve dioxine and secondary pollution of heavy metals and others. Said treatment equipment system is formed from storage bin, gasifying furnace, dust-collecting device, incinerator furnace and high-effective heat storage chamber, etc.

The invention relates to a brand-new branch gas station, only consisting of a gas adding machine, a priority sequence controller and a plurality of gas storage devices. The branch gas station has the technical characteristics that each gas storage device is composed of a plurality of gas tanks which are filled with high pressure compressed natural gas (CNG) of 25 MPa, the gas storage devices alternatively and cyclically provide high pressure CNG to form alternate recycle high pressure technology, solving the problem that the gas storage devices need a compressor or a hydraulic pump sell the remaining gas by pressurization, saving the massive equipment investment such as compressor, hydraulic pump, intra-station gas tank group and the like and easily standardizing the three major components: the gas adding machine, the priority sequence controller and the gas storage devices, being free from daily consumption such as power supply, mechanical wear and the like; in addition, the branch gas station is matched with a major gas station and pursues the technical road featuring L-CNG and is easily and rapidly replicated in cities throughout the country, thus enjoying the possibility of changing the backward situation at home where for the past dozens of years, CNG stations are hard to be integrated into a complete sales network.

The invention relates to three-section treatment technology for cow manure, which comprises: adding straw powder which accounts for 0.5 to 2 times of the total volume of the cow manure into the cow manure, performing aerobic fermentation and temperature rise treatment on mixed raw materials of the cow manure and straws, and sending the mixed raw materials into an anaerobic reactor through a loading machine; uniformly spraying biogas slurry to the fermented raw materials in the anaerobic reactor for a few times, adjusting the water content of the fermented raw materials to be between 75 and 80 percent, and performing anaerobic fermentation treatment for a period; making biogas slurry generated by anaerobic fermentation flow to a liquid storage tank, using the biogas slurry for recycled spraying, and making biogas generated by the reactor pass through a biogas cooling and purification system and enter a gas storage device; performing aerobic fermentation treatment on fermented residue after anaerobic fermentation is over, stopping aerobic fermentation when the water content of the fermented residue is reduced to be between 30 and 40 percent, and drying the fermented residue to make the water content of the fermented residue reduced to be between 25 and 10 percent; and sending the fermented residue into a crusher, crushing the fermented residue into particles to prepare an organic fertilizer, and packaging the organic fertilizer for standby. The technology has reasonable design and low cost.

The invention discloses a low-NOx afterburning and VOC efficient removing method and a system based on RTO, and is applied to a double-chamber RTO waste gas treatment system in the field of organic waste gas treatment. The method monitors inlet waste gas online; corresponding equipment outer passage is switched according to the concentration of the water gas; and meanwhile, a heat storage body temperature field is combined to reversely switch the flowing direction of the waste gas in equipment, so that the thermal oxidation efficiency of the organic waste gas is improved; on the one hand, the method can realize low-NOx combustion on the basis of not greatly changing the equipment structure, reduces the performance requirements on a combustor, discards a low-NOx combustor with high use cost, and reduces the investment cost; and on the other hand, high-level VOC removing efficiency can be realized, fuels are sprayed into the organic waste gas for full mixing to greatly improve the combustion efficiency, and the combustion temperature in the combustion chamber is distributed more uniformly to generate the effect of flameless combustion, so that the fuels can be saved by above 20% compared with a combustor combustion method, and meanwhile, zero emission of NOx is realized.

The invention discloses a process for treating landfill leachate by high-temperature incineration. The process for treating the landfill leachate by the high-temperature incineration involves a preheating system, an evaporative crystallization system, a phase-change heat storage system, and an incineration system; and the implementation characteristic comprises a starting stage S1, a feeding stageS2 and a circulation stage S3. According to the process, phase change heat storage and sensible heat storage are combined and used, a large amount of latent heat and sensible heat in evaporated moisture discharged by evaporation are recycled, recycled heat continues back into a system for treating the leachate, the problem of heat loss in evaporated moisture in an existing high-temperature treatment process of the leachate is solved, so that the heat energy utilization rate of the high-temperature incineration treatment leachate system is further improved, and the process is a leachate treatment process which is high in heat energy utilization rate, free of pollution emission, low in operation cost, safe and reliable.

The invention relates to an ecological dredging recycling method. The method is realized in the following steps: sediment is pretreated, sediment organic liquid fertilizer is fermented, a bacterial sediment liquid is added to a lake, reservoir or river to be used as a microbial strain, a nutrient solution or a concentrated nutrient solution passes through an aeroponic cultivation system, a residual plant absorption liquid is obtained through absorption of nutrient substances by plants, bacterial sediment is flavored by a flavoring agent, mycoprotein feed is prepared, and an alga liquid is obtained through alga culture of the residual plant absorption liquid; an alga culture container is made of a high-transmittance high-polymer hard material; algae comprise green algae and diatom; the culture period lasts 48-72 h; the illumination intensity is 3,000-7,000 LX, and the illumination time lasts 48-72 h; the obtained mycoprotein and the alga liquid enter a high-efficiency bioreactor via a feed adding system and a pipeline, residual feed and excrement of all aquatic organisms in the high-efficiency bioreactor are collected and dewatered and then enter an organic fertilizer fermentation system for fermentation recycle, and aquiculture water is directly discharged into a water body after being disinfected by a biological purification system in the high-efficiency bioreactor.

The invention relates to a waxberry juice extracting system in waxberry juice production. The waxberry juice extracting system comprises a band type juice extractor. A juice outlet of the band type juice extractor is connected with a spin vibration sieve, the spin vibration sieve is connected with a fruit juice buffer tank, the fruit juice buffer tank is connected with a duplex filter, a water outlet of the band type juice extractor is connected with a hydraulic sieve, the hydraulic sieve is connected with a cleaning water collecting tank, a residue outlet of a band type juice extractor I is connected with a deslagging device I, the deslagging device I is connected with a screw pump device, the screw pump device is connected with a secondary squeezing pulp tank, the secondary squeezing pulp tank is connected with an inlet of a band type juice extractor II through a screw pump, a residue outlet of a deslagging device II, and the band type juice extractor is provided with a CIP system. The waxberry juice extracting system is high in juicing pulp utilization rate and high in fruit juice quality, performs cleaning automatically, and runs stably.

The invention discloses a supercritical water oxidation treatment and resource recovery system of alkaline paper-making wastewater, which comprises a supercritical water oxidation unit, a black liquidpretreatment unit, an oxidant supply unit, an alkali recovery unit and a white mud utilization unit, wherein a supercritical water oxidation reactor is a multilayer torch firing and multilayer cooling supercritical reactor and is connected with a starting fuel system and a condensate water circulation system; the black liquid pretreatment unit comprises a lignin recovery system, a black liquid conditioning system and a warming and pressurizing system that are sequentially connected; the oxidant supply unit comprises a liquid oxygen booster pump and an air temperature vaporizer; the alkali recovery unit comprises a saline separation tank and a vertical causticizer; a salt discharge port is formed at the bottom of the supercritical water oxidation reactor; and the supercritical water oxidation reactor is sequentially connected with the saline separation tank and the vertical causticizer. The system is high in treatment efficiency, free of pollution discharge, simple to operate and lowerin treatment cost, can simultaneously achieve recycling of resources and energy sources, and saves investment.

The invention discloses a tail gas treatment device of a high-temperature sintering furnace for graphite production. The tail gas treatment device comprises a spraying tower, a gas inlet pipe for fluegas to enter is arranged on the spraying tower, a blanking device is arranged at the bottom of the spraying device, a liquid outlet pipe for discharging cooling liquid and a liquid spraying pipe forconveying the cooling liquid are arranged on the side wall of the spraying tower, the liquid outlet pipe is positioned under the liquid spraying pipe, and a heating device for heating the inner side wall of the spraying tower is also arranged on the spraying tower. The tail gas treatment device disclosed by the invention has the benefits that the zero pollution discharge is realized, grease, floating oil and waste gas can be effectively treated, the energy consumption is low, and the efficiency is high; tail gas in the whole sintering furnace is treated by adopting a physical method, so that the use of chemical materials is reduced. Therefore, the treatment mode can be used for a long term, and the tail gas treatment cost is reduced; through a water circulation treatment device, the condensing effect of an aqueous solution is ensured, and water recycling is realized.

The invention discloses an oil system of a phase modifier. The oil system comprises an oil tank, the phase modifier, a lubricating oil supply system, a lifting oil system and an oil smoke recycling system, wherein the lubricating oil supply system and the lifting oil system are arranged between the oil tank and the phase modifier, the inlet end of the oil smoke recycling system is connected with the outlet end of the phase modifier, the outlet end of the oil smoke recycling system is divided into two ways, one way is connected to the oil tank, and the other way is discharged into the air. According to the oil system, oil smoke containing lubricating oil passes through an oil smoke removing device, and filtered oil is transmitted to the oil tank, so that the recycling rate of the lubricating oil is increased; filtered clean gas is discharged into the air, so that the filtering effect is increased, air pollution is prevented, the recycling rate of the lubricating oil is high, and normal operation of the system can be guaranteed in the condition that main components of the system fail.

The invention discloses a zero-pollution discharge system for circulating aquaculture tail water in a pond and a construction method thereof. A river crab escape prevention wall is built on the periphery of an aquaculture pond, the pond is divided into a purification area and an aquaculture area through a newly-built pond ridge, external water is firstly purified through the purification area, and a high-quality water source is provided for shrimp and crab aquaculture; secondly, circulating micro-flowing water is formed between the two areas, only new water is injected without changing water in the production process of the aquaculture pond, the water changing frequency in the production process of the aquaculture pond is reduced, and the effects of purifying water and saving water are achieved; and the aquaculture area is divided into different areas by an inner ridge of an S-shaped pond ridge, staging planting of aquatic plants and precise management of shrimp and crab aquaculture can be achieved, pond drying in different areas can be achieved in sequence when the pond is dried, aquaculture tail water rich in nutrient substances at the bottom layer is not discharged to the environment outside the pond, and zero-pollution discharge of the aquaculture tail water is achieved.

The invention discloses an energy supply system of a papermaking production line. Electric power and high-temperature flue gas are generated by combusting natural gas, wherein the electric power is used for the papermaking production line, and the high-temperature flue gas serves as a drying medium of the papermaking production line; secondary power generation is carried out, low-temperature fluegas obtained after drying is recycled, the utilization efficiency of the natural gas is greatly improved, and energy conservation and environmental protection are achieved. The energy supply system forms an energy closed-loop use in the papermaking industry, zero-pollution emission of the papermaking production line is realized, the comprehensive heat efficiency can reach 90% or above, and the energy-saving and emission-reducing effects are remarkable.