36results about How to "Small secondary pollution" patented technology

The invention relates to a fabric/fiber finishing solution for antibacterial and insecticide repelling, its use method and fabric/fiber product/paper product. The mass percentage formula of the fabric/fiber finishing solution is: 0.05-40% of insecticide/repellent; 0.05-20% of antibacterial agent; 5.00-35% of binder; and 0.025-5% of crosslinking agent. The method for using the fabric/fiber finishing liquid of the present invention can be selected according to the difference of the finishing fabric/fiber material, one of the padding method, the spraying method or the dipping method. The fabric/fiber product/paper product is obtained by finishing the fabric/fiber finishing liquid or/and the method of using the fabric/fiber finishing liquid of the present invention. The fabric/fiber finishing liquid and its products of the present invention have the advantages of high efficacy, strong adhesion, water washing resistance, can reach the WHO standard, low cost, good applicability, convenient use and popularization, and the like.

The invention discloses an explosive cladding tube manufacturing process. The explosive cladding tube manufacturing process includes the following operations that a tube needing cladding is prepared, wherein the tube at least comprises a cladding tube and a lining tube; a first explosive fiber spirally and evenly winds the cladding tube; after the required explosive amount is wound, the first explosive fiber is loosened, so that gaps of the preset distance are kept between the first explosive fiber and the outer wall of the cladding tube; a second explosive fiber is inserted into the lining tube and fixed by a plug with a hole; the first explosive fiber and the second explosive fiber are connected to a same detonator to form a whole device, the whole device is placed in water storage equipment, and a part needing cladding is placed under water; eventually, detonation is conducted. Actual experimental results show that the explosive cladding method of a long tube and a superlong tube is innovative and has innovativeness in multiple aspects and outstanding advantages.

The invention provides a manufacturing process of an explosive composite pipe with a negative pressure cavity based on a liquid explosive. The manufacturing process comprises the following steps thata covering pipe and a base pipe are sequentially and coaxially mounted on a soft base from inside to outside, the explosive amount is calculated according to the specification of a to-be-composited pipe blank, and meanwhile an inner pipe dose adjusting water column is mounted; the upper end of an annular cylindrical gap between the covering pipe and the base pipe is sealed through a sealing ring,and an annular cylindrical cavity is sealed after being pumped into negative pressure through a vacuum pump; and the assembled to-be-composited pipe blank and a container are coaxially arranged, and then liquid explosive is injected, and the explosive is ignited so that a metal composite pipe can be obtained. According to the manufacturing process, the production efficiency can be greatly improved, explosive charging is uniform, the bonding rate of the composite pipe is high, the welding quality is good, and a constraint mold does not need to be applied in the welding process, so that the production cost can be greatly reduced; and meanwhile, the vacuum pump is adopted for pumping the cylindrical cavity into negative pressure, the influence of air on explosive welding is greatly reduced, the bonding quality of the composite pipe is improved, and the use amount of explosives can be reduced.

A method of decreasing nitrate nitrogen and volatile organic compounds in soil and groundwater by burying a fatty acid having 10 or more carbon atoms, an alcohol having 12 or more carbon atoms, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a monohydric alcohol, an ester of a linear saturated fatty acid having 14 or more carbon atoms and a polyhydric alcohol, an ester of a fatty acid having 16 or more carbon atoms and glycerine, and the like in soil containing nitrate nitrogen and volatile organic compounds. This method allows for on site treatment, high biological denitrification and a decrease in volatile organic compounds secondary pollution by the release of organic matter and nitrogen into the environment is extremely small.

The invention discloses a technology for cutting granite quarry stone. Cutting is carried out through a frame saw. A main shaft driving device, a saw frame assembly, a lifting device, a loading cart and a numerical control system are arranged on a basic installation structure of the frame saw, wherein the saw frame assembly is arranged on a rack in a sliding manner, the loading cart is arranged on the lifting device, and the numerical control system controls saw blades of the saw frame assembly to conduct feeding and controls the lifting device to be lifted. The main shaft driving device is in transmission connection with the saw frame assembly through connecting rods. When cutting is carried out, the numerical control system controls a processing feeding manner to conduct feeding in five grades, wherein the first grade is a rapid feeding, so that the granite quarry stone rapidly gets close to the saw blades; the second grade is low-speed feeding for processing, so that the saw blades cut the granite quarry stone by a certain depth at the speed lower than the conventional speed; the third grade is characterized in that the saw blades carry out cutting feeding at the normal speed; the fourth grade is characterized in that the saw blades complete final processing in a low-speed feeding manner; and the fifth grade is characterized in that the loading cart rapidly returns to the original position.

The invention belongs to the field of soil heavy metal cadmium removers, and particularly relates to a soil heavy metal cadmium remover which is prepared from the following raw materials in parts by weight: 6-8 parts of citric acid, 20-30 parts of straw powder, 10-20 parts of desulfurized gypsum, 6-10 parts of a coagulant aid, 50-60 parts of distilled water, 4-6 parts of polyacrylamide, 8-10 parts of terpilenol, 4-6 parts of sodium oleate, 6-8 parts of activated carbon, 10-16 parts of phanerochaete chrysosporium extracellular polymeric substance, 6-8 parts of montmorillonite, 10-14 parts of pectin and 10-20 parts of polyhydroxy amino polyether. According to the scheme, citric acid, straw powder, desulfurized gypsum, sodium sulfate and montmorillonite are designed to serve as main materials of the heavy metal cadmium remover, polyacrylamide, terpilenol, activated carbon, phanerochaete chrysosporium extracellular polymeric substances and polyhydroxy amino polyether are designed to serve as auxiliary materials, and the auxiliary materials are matched with coagulant aids, water and pectin to form the novel heavy metal cadmium remover. The heavy metal cadmium remover can be effectively combined with the heavy metal cadmium so that the purpose of removing the heavy metal cadmium in the soil can be achieved, and the soil containing the heavy metal cadmium is well recovered.

The invention discloses an artificial zeolite using shells and construction waste as raw materials and a preparation method thereof and belongs to the technical field of absorbent material preparation. The artificial zeolite is prepared from, by mass, the following raw materials: 5%-20% of silicon dioxide, 25%-45% of aluminum trioxide, 1%-10% of shells, 10%-25% of construction waste, 15%-30% of clay and 12%-25% of adhesive. The artificial zeolite uses the shells and the construction waste as the raw materials, the adaptability of the raw materials is improved, the utilization value of the construction waste is improved, waste is turned into wealth, and the property of the artificial zeolite is extended. The preparation method is simple in process, easy to operate and low in production cost.

The invention provides a rice planting method based on wheat straw returning to a field. The method includes the steps that crushing full doses of wheat straw to return to the field; using shallow water to soak the field, and conducting soil preparation through wet rotary tillage; when applying base fertilizers and tillering fertilizers, applying calcium peroxide or/and carbamide peroxide in a combining mode, and transplanting rice seedlings; at late rice tillering stage, ditching before field drying; carrying out field management until the rice matures. The rice planting method has the advantages of ecological environmental friendliness, effective utilization of farmland resources, improvement of soil environment and stable yield increase of the rice.

The invention provides a preparation method of a high-quality explosive composite tube. The preparation method comprises the following steps: coaxially arranging a to-be-compounded tube 1, a to-be-compounded tube 2, a small-radius PVC tube 1 and a large-radius PVC tube 2 from inside to outside, and filling space between the PVC tubes with an explosive and a detonator to prepare an explosive device of materials to be welded together; filling space among the to-be-compounded tubes and the explosive device with water to construct a water environment; and detonating the explosive device and welding and combining the to-be-compounded tube by utilizing water pressure to obtain a high-quality explosive composite rod tube. The invention provides the method for compounding the tubes by transferring high pressure generated by explosive explosion via a water medium, so dust and noise pollution in the preparation process is effectively reduced, and environmental protection and safety are taken into consideration while production quality is ensured; a water environment interlayer is reasonably utilized, so the size of the to-be-compounded tubes can be randomly selected as required; compared with a traditional technology, the operability of the method is higher, and the tubes are prevented from being damaged due to high temperature generated by explosive explosion; and the defect that composite machining of thin-wall tubes is difficult to achieve through traditional explosive welding is overcome.

The invention relates to the technical field of ecological restoration of water bodies, in particular to a composite ecological coagulation ball system based on a slope protection and a manufacturing method of the composite ecological coagulation ball system. The system comprises a positioning mechanism used for being installed in a water body of the slope protection, and a coagulation ball ecological system, a bottom aeration device, an aquatic plant system and an artificial plant system which are arranged in the positioning mechanism, a water quality purification system with good plant growing performance, large microorganism attachment density and a stable ecological network is established, aquatic plants realize synchronous treatment of water and bottom mud through root systems, stems and leaves, absorb a large amount of nutritive salt in the growth process and store the nutritive salt in bodies, a mechanical harvesting device directly harvests the aquatic plants in autumn and winter, the nutritive salt in the water body can be indirectly removed, the ecological environment of the water body is directly improved, ecological coagulation balls are filled in side slopes, and the effects of slope greening and slope protection are achieved.