113results about How to "Eliminate sources of pollution" patented technology

The invention provides a self-cleaning device of a full-automatic washing machine, which is used for solving the problem of secondary contamination on clothes caused by clustered dirt in the interlayer between the water storage tank and the dehydration tank, and in the interlayer between the dehydration tank bottom and the impeller bottom of the washing machine. The interlayer between the water storage tank and the dehydration tank is provided with a plurality of clean balls 3, and a plurality of clean balls 5 are arranged between the dehydration tank bottom and the impeller bottom. When the washing machine washes or rinses, the clean balls perform friction with the water storage tank wall, the dehydration tank wall, the impeller bottom and the dehydration tank bottom to clean the dirt inthe positions, and simultaneously the clean balls are self cleaned through mutual collision and friction. By adopting the way in which the water storage tank rotates along with the dehydration tank when dehydrating and the storage tank wall or bottom is provided with a groove or a piston cylinder (to lead the clean balls to drop into the groove or the piston cylinder when dehydrating), the clean balls do not generate friction with the dehydration tank, thus prolonging the service life of the clean balls and saving energy; and the adoption of the way in which the water storage tank rotates along with the dehydration tank when dehydrating can decrease the width of the interlayer between the water storage tank and the dehydration tank to save water.

The inventive air-conditioning system comprises refrigeration and solution cycle systems. The refrigeration cycle system has a compressor, an evaporator, an expansion valve and a condenser. The solution cycle system has a dehumidifier, a regenerating unit, a solution reservoir, a solution pump, a mixed solution valve and a control valve. Because of adding a solution cycle system, the invention can realize the accuracy independent control of temperature and humidity.

The present invention discloses a graphene-modified chromium-free Dacromet coating material, which comprises, by weight, 10-20% of zinc powder, 2-10% of aluminum powder, 2-20% of a film forming agent, 40-60.8% of a solvent, 0.1-5% of an auxiliary agent, 0.001-20% of graphene, and 0.1-5% of a filler. According to the present invention, compared with the traditional Dacromet coating, the graphene-modified chromium-free Dacromet coating material of the present invention provides substantially-increased hardness and substantially-increased adhesion, wherein the hardness of the coating of the present invention can be 7H so as to make the coating have good wear performance; the energy consumption is reduced, the conductivity of the coating is increased, and the corrosion resistance of the chromium-free Dacromet coating material is further increased; and the used raw materials do not contain substances harmful for environment and human body so as to fundamentally eliminate the pollution source.

The invention relates to an electrolytic manganese slag processing method, in particular to an electrolytic manganese slag comprehensive utilization process. The method recovers the recyclable materials in electrolytic manganese slag through repeated water washing and filtering. The method can solve the air pollution source, particularly eliminate the water pollution source, and protect people health from being damaged. The method can extract higher-value chemical products through the scientific flow, and make the residuary filter residue into building products, thereby effectively utilizing the resource. Zero discharge is realized during the overall process of the technical proposal of the method, and because no additional chemical substances are added, additional environmental pollution can not be caused.

The invention relates to a method for processing oil-bearing mud, which comprises the following steps: firstly, mixing and stirring oil-bearing mud and right amount of water in a washer under the condition of heating, stewing, separating out oil phase and a first sludge layer, secondly, stirring in a middle tank, heating oil phase from the washer, stewing, and then discharging water and sludge on the lower portion, keeping oil phase on the upper portion, thirdly, finely separating oil phase which is kept in the middle tank in a centrifugal machine through a centrifugal effect, discharging oil phase which is separated into an oil storage tank, fourthly, stewing oil products which is from the centrifugal machine after dewatering and desliming in the oil storage tank, and getting recovery oil, fifthly, cavitating first mud residue from the washer in a mud residue processor, stripping residual oil in the first mud residue, and discharging oil phase on the upper portion of the mud residue processor into the middle tank. The invention also relates to a system which utilizes the method to process oil-bearing mud. Oil-bearing rate of oil-bearing mud which is processed by the method and the system of the invention is below 4%.

The invention relates to a preparation method of a modified fungus bran adsorbent for discoloring dye waste water, belonging to the technical field of environmental protection. The preparation method comprises the following concrete steps: alkalizing and swelling the edible fungus bran which is dried and crushed in an excess NaOH solution at 50-120 DEG C for 1-12 hours, carrying out cationic modification on the swollen edible fungus bran, washing the swollen edible fungus bran with water, and drying the swollen edible fungus bran to obtain the modified fungus bran adsorbent for discoloring dye waste water. In the invention, the processed edible fungus bran is used as a raw material for preparing the adsorbent, wherein celluloses and thalli contained in the fungus bran are mainly used. By using the fungus bran for preparing the adsorbent, agricultural wastes are reasonably used, and pollution sources are eliminated. The invention has the advantages of simple process, low cost, economy,practicability and the like. After cationic modification, active groups in the fungus bran are increased, and the adsorbent has high stability, good absorption effect and wide application range, is renewable and can be widely used for treating dye waste water.

The invention discloses a BEV (battery electric vehicle) based instructor control system. The BEV based instructor control system comprises a radio assembly for sending a system instruction, a whole vehicle controller for receiving the instruction sent by the radio assembly and analyzing the instruction as well as a driving system for receiving and executing the instruction analyzed by the whole vehicle controller, wherein the whole vehicle controller and the driving system are further used for realizing flameout and idling functions of the vehicle; an instructor operating system is arranged on the radio assembly and has multiple modes, the modes are set and selected through a human-machine interface, and whole vehicle information is displayed simultaneously; the instructor operating system and the driving system are both in communication connection with the whole vehicle controller through CAN buses. With adoption of the structure, the BEV based instructor control system has the advantages that one of air pollution sources is effectively eliminated, the passing rate of teaching examination is increased, and the operation cost of a driving school is reduced.

The invention discloses an organic carbon base fertilizer and production technology thereof. The carbon base fertilizer comprises the following raw materials, by weight: 30-35% of straw carbon powder, 8-12% of bamboo carbon powder, 10-15% of human excrement, 10-15% of pig dung, 5-10% of cow dung, 10-15% of chicken dung, 5-10% of sheep dung, and 2-5% of an organic matter extracting solution. According to the invention, no pollution is caused during a production process of the organic carbon base fertilizer; pollution sources of forestry and agricultural residues, and livestock dung are solved and are changed into treasures; cultivated land pollution can be effectively reduced; harmful bacteria of a cultivated land are killed; harms of heavy metal and pesticide residues for years are solved; and the surface area of soil is increased and is not hardened. The soil has extremely significant water-logging resistance, and ecological balance of the soil is restored.

The invention discloses a novel horizontal screw-extrusion solid-liquid separation machine. The novel horizontal screw-extrusion solid-liquid separation machine comprises a housing, a spoke support, a feeding dehydration mechanism and a pressure adjustment mechanism, wherein the housing comprises a main shell body and a conical shell body; the main shell body and the conical shell body are arranged at a front side and a rear side of the spoke support separately; a circular-barrel screen group is arranged in the main shell body; and a conical-barrel screen group matched with the conical shell body is arranged in the conical shell body. The feeding dehydration mechanism is arranged in the circular-barrel screen group, and comprises a hollow shaft and a front screw sheet; and the front screw sheet is arranged at an outer side of the hollow shaft. A conical press head is arranged at a rear end of the hollow shaft; and a rear screw sheet is arranged at an outer side of the conical press head. The pressure adjustment mechanism is arranged at a discharge port, and comprises a slide sleeve, a nut seat and a pressure adjustment cylinder group. According to the novel horizontal screw-extrusion solid-liquid separation machine disclosed by the invention, many dehydration structures are designed, classified dehydration is carried out on materials through the two screw sheets, and high dehydration capacity is achieved; a pressure on the materials can be adjusted in real time; and the novel horizontal screw-extrusion solid-liquid separation machine is small in size, high in efficiency, capable of avoiding material blockage, and high in automation degree.

The invention relates to a method for harmless treatment of drilling well waste mud. The method comprises the following steps of: firstly adding 150-250 mg/l of colloid destabilizing agent to the waste mud; fully stirring for 1-2 h; then adding 90-300 mg/l of ion settling agent to the waste mud; stirring for 1-3 h and adding 1-3 mg/l of adsorption flocculant; stirring for 1-3 h and standing for 1-2 d; then adding a solidifying agent accounting for 10-40% of total weight of the waste mud to the drilling well waste mud, wherein the solidifying agent is prepared by grinding, stirring and mixing 50-70% of coagulator, 10-25% of adsorbent and 15-35% of calcium oxide; standing for 10-20 d after the solidifying agent is added; and solidifying the drilling well waste mud to form a condensate. The method can solidify the drilling well waste mud with high water content, high organic matter and many harmful substances and has the characteristics of low treatment cost, convenience for use, long stabilization period, no secondary pollution or no damage to soil and meets the environmental protection requirement and the like.

The invention provides a honing solution and a preparation method thereof. The honing solution is prepared from the following components in percentage by mass: 10%-25% of extreme pressure additive, 10%-25% of penetrating agent, 5%-10% of anti-rusting agent, 0.5%-3% of bactericide, 0.1%-0.5% of softener, 0.1%-0.2% of defoamer and the balance of water. The metal processing solution is good in lubrication effect, excellent in anti-corrosion performance, and good in cooling property and cleaning property; various defects of products in the prior art can be solved; as the raw materials of the honing solution completely include no oily component, the pollution source is eliminated from the source; the honing solution is a real water-based product; the industrial production cost is greatly reduced; and besides, the honing solution is green and environment-friendly, friendly to the human body and the environment, and applicable to honing processing completely instead of oil based products.

A process for demineralizing the sewage in oil field, which contains oil, polymers and high-mineralized water, includes such steps as coagulating, deposition, air floating, filtering, chemical cleaning in a circulating membrane unit for further treating, demineralizing in a nano-modified ion exchange unit, desalting, and using the treated water to prepare polymer for reusing it.

The invention discloses a manufacturing method for improving PCBA production efficiency, and belongs to the technical field of computer processing and manufacturing. The manufacturing method for improving PCBA production efficiency of the present invention includes the following steps: S1: making a printed steel plate with special openings to ensure that the solder paste at the position of the DIP material meets the welding requirements; S2: the components used in the production meet high temperature resistance and are suitable for SMT placement machines SMD packaging requirements for medium and high-speed machines and general-purpose machines; S3: DIP components are installed on the corresponding SMT machines through loading trolleys and feeders; S4: Automatic insertion machines are used for components that cannot meet the requirements of the SMT machines Or manually insert into the corresponding part position; S5: After reflow soldering, check the welding effect of the part. The manufacturing method for improving the PCBA production efficiency of the invention can greatly reduce the PCBA production cost, improve the product production quality, shorten the production cycle, and has good popularization and application value.

The invention belongs to the technical field of processing oil crops. Specifically relates to a clean production process of high-purity gossypol. It provides a simple, cheap and efficient clean production process for obtaining high-purity free gossypol, and can realize large-scale industrial preparation of free gossypol. Compared with the existing process, this process does not use acetic acid to convert gossypol to gossypol acetate, and then converts gossypol acetate to gossypol, and uses simulated moving bed chromatography continuous separation technology to directly obtain a purity of 98% Ur degree of high -purity glycol, from the source of the source, except for cotton oil soap -to -foot processing acidized oil, preparing wastewater, waste residue and acetic acid waste solvents accompanied by glycol, realizing the green cleaning of cotton oil soap foot processing, eliminating it, eliminating it It has greatly improved the quality and yield of gossypol and the co-produced cotton oil fatty acid, greatly increased the added value of cotton oil soapstock, and has broad application prospects in the field of cottonseed processing. .

The invention discloses a drilling waste slurry integrated treatment system. The drilling waste slurry integrated treatment system comprises an automatic classification and collection module, a multi-grade solid-liquid separation combined module and a solid-phase conveying system, wherein the automatic classification and collection module comprises a plurality of rock debris slurry removing machine and slurry storage tank combinations which are connected in series; the multi-grade solid-liquid separation combined module comprises a sand scrap removing machine, a multifunctional adjusting tank and a water treatment regeneration device; the multifunctional adjusting tank comprises a medicine adding treatment region and a clean water temporary storage region; and the solid-phase conveying system is connected with a curing agent adding device. The high-grade waste slurry treatment combined system integrates a plurality of functions of collecting slurry, storing, carrying out solid-liquid separation, purifying the slurry, carrying out solid-phase conveying and field curing, recycling a liquid phase and the like; the waste slurry can be scientifically and effectively classified and treated by classes in a drilling process; and a drilling and curing innovative pattern is realized, and the national blank in the aspect is filled. By virtue of the drilling waste slurry integrated treatment system, the use amount of curing medicaments can be greatly reduced, and the recycling rate of a treated liquid phase also can be greatly improved.

The invention discloses a method for preparing protein feed by utilizing waste liquid fermentation in production of ginkgo leaf extracts. The method is characterized by comprising the steps: adsorbing ginkgetin through macroreticular resins in the production of ginkgo leaf extracts; condensing effluent waste liquid which is obtained by the adsorption until the water content reaches 60-62 percent; adding concentrates including 2.5-3.5 percent of brown sugars, 1.5-2.5 percent of malt extracts and 0.25-0.5 percent of yeast extracts; performing hot-pressing sterilization; cooling the temperature to be below 40 DEG C; adding 8-12 percent of composite microbiological bacteria leavening agents at the temperature of 30-34 DEG C under the condition of the ventilation quantity of 0.8 m<3>/min to perform solid state fermentation for 60-72 hours; drying in vacuum at the temperature of 50-65 DEG C under the condition that the vacuum degree is -0.07--0.1MPa until the water content is 4-6 percent so as to obtain a fermentation protein feed product. According to the method, a new method, a new technology and a new technical route are provided for development and utilization of waste liquid caused by processing the ginkgo leaf extracts, and the feasibility is provided for effective utilization of wastes; moreover, the fermentation protein feed product is easy and simple in processing, high in utilization rate, low in cost and high in economic benefit, and has a great popularization and application value.

The invention relates to a sealed recovery and operation pressure stabilizing control method for tank top tail gas of a refinery enterprise atmospheric storage tank. The sealed recovery and operation pressure stabilizing control method for the tank top tail gas of the refinery enterprise atmospheric storage tank is suitable for production requirements of a refinery enterprise and comprises the steps that the tank top tail gas in a steam jet compressor is subjected to gas-steam on-line supercharging and then conveyed to a cooler to be cooled to 45 DEG C; after the tank top tail gas is subjected to gas-liquid separation, non-condensable gas enters a refinery low-pressure gas flare system, and condensate liquid reflows to a sewage storage tank through self pressure. Normal operation of the sealed recovery and operation pressure stabilizing control method is controlled in a segmented mode, when the tank top pressure is 0-0.3 kPa, a nitrogen adjusting valve is opened, and a steam adjusting valve is closed; when the tank top pressure is 0.3-0.5 kPa, the nitrogen adjusting valve is closed, and the steam adjusting valve is closed; when the tank top pressure is 0.5-1.5 kPa, the nitrogen adjusting valve is closed, and the steam adjusting valve is opened; and when the tank top pressure is greater than or equal to 1.5 kPa, a control brake valve is opened. According to the sealed recovery and operation pressure stabilizing control method for the tank top tail gas of the refinery enterprise atmospheric storage tank, the tank top tail gas of the atmospheric storage tank is led into the refinery low-pressure gas flare system after being supercharged, the zero emission purpose is achieved, and the problem that the atmospheric storage tank is low in operation pressure is solved.