62results about How to "Reduce industrial pollution" patented technology

The invention discloses a polymer modified binding material of sulphate aluminum cement base. The polymer modified binding material of sulphate aluminum cement base is prepared from, by weight, 750-850 parts of modified cement, 900-1350 parts of quartz sand, 100-120 parts of mineral admixture, 5-8 parts of modified polymer gelatine powder, 2-4 parts of retarder, 4.5-9 parts of water reducing agent, 0.05-0.1 part of defoaming agent; the allowance is water. Meanwhile, the invention further discloses a preparation method of the polymer modified binding material, which includes steps of weighting raw materials at ratio, adding water to stir, and preparing to be slurry, and others. The binding material prepared by the invention can improve the binding ability between interfaces by modifying a polymer; the binding material is high in binding strength and good in flowability; the novel polymer modified binding material with good economic benefit and social benefit has advantages of preventing flash setting and fully saving material and cost.

The invention discloses a method for extracting tannin from banana stems and fruit axes, and the method comprises the following steps: (1) collecting materials, and shredding the materials; (2) kneading into threads; (3) squeezing, and collecting a stock solution; (4) concentrating; (5) preparing an animal glue solution for later use: adding animal glue into a saturated sodium chloride solution, and heating to dissolve the animal glue; (6) preparing an ethanol solution which is composed of 45-50 parts of 95wt% ethanol, 45-50 parts of softened water and 0.5-1 part of 60wt% hydrochloric acid; (7) stirring and clarifying; (8) filtering; (9) extracting tannin; and (10) drying at a low temperature to obtain the finished tannin product. The method provided by the invention has the advantages of low development cost and low labor intensity, and is convenient and practical. By utilizing the method disclosed by the invention, wastes are changed into valuable substances, resources are fully utilized, and new raw material resources are provided for the chemical industry in China; the required equipment is simple, and can be easily mastered by common working personnel in enterprises; no chemical assistant which is harmful to the environment is needed in the extraction process; and the method disclosed by the invention breaks through the traditional plant tannin extraction process, and performs an active function for protecting the ecology.

An application of spot welding technique to the down-lead connection of slice vibrant electrical loop winding, including the welding of the down-lead and double-faced PCB board. This invention does not need welding materials and plumbum; the enamel wire welding does not need pre-removing enamel cover and stannum soaking pre-processing, and reduces the industrial pollution caused by using lacquer removing solution and welding assistant. This invention uses half-mechanization of electronic spot welding machine, avoids the weak points of the hand welding operation, and effectively prevent of bad contact phenomenon. Therefore, this invention not only reduces the cost, but also improves the working efficiency and greatly increases the eligible ratio of the welding.

The invention discloses a method for extracting chlorophyll from a luffa leaf. The method comprises the following steps: using hydrous ethanol as an extractant, and extracting natural chlorophyll from the luffa leaf through adopting an ultrasonic-assisted extraction technology. The specific technological processes are that the luffa leaf is ground, 60-80 % hydrous ethanol is added according to the feed liquid ratio of 1:(20-40), and through the adoption of the ultrasonic-assisted extraction technology, the extract liquid is subjected to reduced pressure distillation after being filtered to obtain the chlorophyll extract. Through the adoption of the method, the original extracting technology of harmful solvents such as acetone is changed, the industrial pollution is reduced, and ethanol replaces original toxic solvents, so that not only is the extracting efficiency improved effectively, but also the injury to a human body of harmful substances is reduced greatly.

The invention provides a preparation method of articaine hydrochloride. The preparation method comprises the following steps of: reacting methyl mercaptoacetate with 2-metyl acrylonitrile used as starting raw materials in a mixed solution of sodium methoxide and methanol, after the reaction is finished, adjusting the pH value to 7 with concentrated hydrochloric acid, dropwise adding hydrogen peroxide, then dropwise adding concentrated hydrochloric acid to the reaction system, and concentrating under reduced pressure to obtain an intermediate compound B; dissolving the compound B in dichloromethane containing pyridine, dropwise adding alpha-chloropropionyl chloride, washing the reaction product, drying and concentrating to obtain an intermediate compound C; and dissolving the compound C with dimethyl sulfoxide, dropwise adding to a dimethyl sulfoxide solution containing n-propylamine, reacting at room temperature, mixing the product with ice water, extracting with ethyl acetate, drying, concentrating to obtain an oil product, dissolving with acetone, adjusting the pH value to 5-6 with concentrated hydrochloric acid, crystallizing, filtering and drying to obtain a crude product of the articaine hydrochloride. The method has the advantages that the operation is easy, the separation and purification are convenient, the product yield is high, the product purity is more than 99%, the industrial pollution is low, and the method is suitable for mass production.

The invention discloses a technique for rapidly extracting ramie hemp erwinia bacterium factory production fermentation, the technique comprises preprocessing material, immersing or sprinkling and inoculating, immersing or fermenting, deactivating with hot water, and the procedure of circulation washing, water dressing and fiber finish, erwinia bacterium which has broad-spectrum and high effective to degumming, pulping and saccharifying of herb fiber material, and bacterial agent preparation and activated technical parameter. The erwinia bacterium addicts the mannose, the peak for secreting non-cellulose to degrade key enzyme (pectic enzyme, beta-mannase and xylanase) can be achieved through purely culturing for 7h to 9h. Bacterial agent is inoculated on herb fiber material such as ramie and the like for activating the bacterial agent for 5h-6h, fermentation forage fodder turns to blue after fermenting for 5h-6h, pectine, hemicellulose and partial lignin which are partially degraded and associated in fiber cell are stripped, non-cellulose residues which are absorbed on fiber can be removed by means of the flushing of high-pressure flushing, and the purpose of extracting net fiber can be reached.

The invention relates to a bamboo-shell tea canister, which is made by the steps of making a cylinder from a natural bamboo shell instead of a paper cylinder material, adhering color paper on the outer wall of the canister, compacting and tightly embedding a cylinder iron sheet base and a bamboo shell on the canister bottom and the canister cover bottom, and tightly adhering the superposed parts of the bamboo shell, wherein the adhering substance is a vegetable material. The made tea canister is nonpoisonous and odorless and is most suitable for containing tea.

The invention discloses a CO2 decomposing method, a CO2 decomposing system and application thereof. The CO2 decomposing method includes: putting CO2 in a radiation range of a radiation source so as to utilize ionizing radiation to decompose CO2 into CO and O2. By the CO2 decomposing method, CO2 decomposition can be realized effectively to obtain CO and O2 having industrial application value; besides, devices or materials releasing ionizing radiation are fully utilized, waste recycling is realized and equivalent to zero energy consumption, cost is low, and efficiency is high.

The invention discloses an intermittent fluidization thermal energy and chemical energy storage and release reaction device and a working method. The device comprises a fluidization system, a heat exchange system and a gas-solid separation system. The fluidization system is located at the bottom of the reaction device. The heat exchange system is located in the middle of the reaction device. The gas-solid separation system is located at the top of the reaction device. The fluidization system is connected with the heat exchange system through an internal horizontal baffle. The heat exchange system is connected with the gas-solid separation system through a cyclone separator. The gas-solid separation system is connected with the fluidization system through an external material guide pipe. According to the intermittent fluidization thermal energy and chemical energy storage and release reaction device and the working method, a thermochemistry energy storage mode is adopted, and the thermal conversion efficiency is high; backmixing of reactants is reduced through an intermittent reaction; the reaction is more sufficient through secondary gas inlet; the energy storage process and the energy release process are conducted independently, and operation is easy; and the gas-solid separation system is arranged internally, so that the separated gas has the advantages of being purer and easy to recycle. The intermittent fluidization thermal energy and chemical energy storage and release reaction device and the working method can be used for occasions of solar-powered Rankine power generation or other large-scale thermal energy storage, and the thermal energy grade is improved.

The invention relates to an intelligent acrylic cracking system, including an intelligent control system, the intelligent control system is respectively electrically connected to a man-machine system, an automatic feeding system, a cracking system, an automatic slag discharge system, a cooling system, an automatic micro-negative pressure system, and exhaust gas purification system, automatic temperature control system and safety system; the safety system cooperates with the intelligent control system to control other systems; the intelligent control system is a PLC processor; executes the operation instructions of the central control room, and automatically At the same time, it takes into account the safety system, emergency handling of failures, data analysis and other functions; the man-machine system is man-machine management software. The advantage of the present invention is that the acrylic cracking process is energy-saving, environment-friendly, and fully automated. At the same time, the intelligent control system combines with the safety protection system to detect the temperature, pressure, and flow, and realizes the alarm and elimination of automatic hidden dangers. On the basis of saving manpower and material resources, it greatly Improved cracking efficiency.

The invention discloses an industrial ultrahigh-pressure cell disruption method. According to the method, cells to be disrupted are subjected to volume two-stage expansion; then, the cells are disrupted by using a void effect and a shearing effect; the obviously expanded volume can enhance the disruption effects of the void effect and the shearing effect; the disruption effect better than the direct void effect and shearing effect cell disruption can be achieved, so that the cell tissues in biological medicine raw materials can be crushed; more than 97 percent of cell tissues can reach the value being less than 100nm; particles of target objects are uniform; the further extraction and purification are convenient; a great number of chemical reagents can be saved; the industrial pollution is reduced; and the utilization rate of medicine raw materials is greatly improved. The invention also discloses an industrial ultrahigh-pressure cell disruption machine, which comprises a support frame, a two-way hydraulic oil cylinder, an ultrahigh-pressure cavity, a recovery cavity, a check valve, at least one discharging valve, a feeding hopper, a pneumatic oil pump, an oil tank and a two-position four-way electromagnetic reversing valve.

The invention relates to a processing technology for driving gear hard cutting threading of a spiral bevel gear in a main decelerator for processing an automobile, the processing technology is characterized in that heat treatment on Phi 10-Phi 100 mm low carbon alloy steel base materials-carburization quenching-tempering-heat insulation for 2 hours at the temperature of 170 to 180 DEG C-annealing at the thread part at the temperature of 600 to 900 DEG C and the surface hardness of 28 HRC-43 HRC-dry cutting of thread, the rotating speed of work pieces at 500 to 900 circles per minute, the cutting speed at the 50 to 80 meters per minute-detection for warehousing. The invention has the advantages that the processing precision is high, the efficiency is high, the cost is low, the technological process is reduced, by adopting the dry cutting process, the cutting oil is not required, and the invention is pollution-free.

The invention discloses a fire extinguishing and smoke dust collecting device comprising a telescopic section, a top cover, a grabbing device and a dust purifying device. A telescopic section is arranged on the lower surface of the top cover, is of a cylindrical structure and is coaxial with the top cover; the grabbing device is arranged on the top cover, and the grabbing end of the grabbing device is located in the telescopic section; and the top of a pit furnace quenching oil tank is connected with the dust purifying device. The device can effectively extinguish fire and collect smoke dust waste gas generated during quenching, the purpose of safe production is achieved, the collected smoke dust waste gas can be further purified subsequently, and the workshop environment is improved.