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750results about How to "No dust" patented technology

Water soluble effervescence composition and method of making the same

The invention relates to an effervescent composition of a water-soluble fertilizer and a preparation method thereof. The effervescent composition contains one or a plurality of plant nutrient substances and one or a plurality of compounds which are contacted with water to generate gas. The effervescent composition comprises an optimized proposal that the plant nutrient substance is monopotassium phosphate. The effervescent composition can be also added with acid, a plant growth conditioner, a surfactant, a filler, a disintegrating agent, an adhesive, dye, a lube and the like. The preparation method comprises the following steps: ingredients are weighed, mixed, pulverized, pelletized and dried to obtain the effervescence composition. The effervescent composition can be manufactured through a routine production process, has rapid disintegrating and dissolving (diffusing) speed in the water, does not block a spray head or drip a pipeline, is uneasy to absorb dampness, has high content of effective compositions, low packaging, storage, metering and using cost and high utilization rate of the effective compositions, reduces waste and pollution to environment, is widely applied to economic crops, gardening, lawns and urban landscaping and has wide market application prospect.
Owner:SHENZHEN LANGTAI BIOTECH

Manganese ore reduction calcination method and apparatus

InactiveCN101413056AFeeding is automatic and uniformEasy to overflowReduction rateLower grade
The invention discloses a method and a device for reducing and roasting manganese dioxide into manganese monoxide in electrolytic manganese industry. The method comprises the following steps: dried manganese dioxide mineral powder is ground, well mixed with reducing powder and conveyed to a feeding bin on the top of a roasting furnace, and then enters hermetic roasting devices; a plurality of burners are arranged among the hermetic roasting devices; fuel is burnt so as to roast manganese dioxide ore; the manganese dioxide ore and the reducing powder are heated and roasted to 900 to 970 DEG C in the hermetic roasting devices with no oxygen supplement; under the circumstance of oxygen-free contact after reaction in the lower ends in the hermetic roasting devices, the temperature of roasted manganese ore is lowered, so as to recover heat and cool the manganese ore; and finally, the manganese ore is discharged out of a furnace by an automatic discharging device and then is subjected to a subsequent process. The method and the device can reduce and roast the high/low-grade manganese dioxide ore, have the advantages of low production cost, simple process and convenient operation, can control the reduction rate of manganese dioxide and other metals through the automatic discharging device, and improve the quality of final products.
Owner:朱军

Pipe straightening, derusting and painting integrated equipment for civil engineering construction

The invention discloses pipe straightening, derusting and painting integrated equipment for civil engineering construction. The pipe straightening, derusting and painting integrated equipment for thecivil engineering construction comprises a straightening device, a derusting device and a paint spraying device, wherein the straightening device comprises at least one roller set, each roller set comprises a roller support, an upper roller, a lower roller and a first driving mechanism, the upper rollers and the lower rollers are rotationally arranged on the roller supports, the first driving mechanisms are used for driving the upper rollers or the lower rollers to rotate, the derusting device comprises an annular ring, a derusting brush fixedly arranged on the inner side of the annular ring and a second driving mechanism used for driving the annular ring to rotate, the paint spraying device comprises a spraying gun and a material supplying mechanism used for conveying paint to the spraying gun, and the spraying gun is located on one side in the extending direction of a material guide channel so as to be used for spraying the paint to the surface of a pipe. According to the pipe straightening, derusting and painting integrated equipment, the pipe can be straightened, derusted and sprayed with the paint at a time so that the working efficiency can be effectively improved.
Owner:CHUZHOU VOCATIONAL & TECHN COLLEGE

Split type air purifier and filter module thereof

The invention provides a split type air purifier and a filter module of the split type air purifier. A draught fan is arranged on an outdoor case, the filter module is arranged in an indoor case, the outdoor case is provided with a fresh air port, a return air port is independently formed in the position far away from the indoor case rather than being formed in the indoor case, positive pressure and large-range air circulation are formed, and indoor air flows to the outside only through gaps. The purifier further comprises an spherical air port, an adjustable grid plate type fresh air port, a module pressing-down mechanism and a touch screen, the filter module is a combined module capable of being freely combined, an early-effect filter module is made of bag type multi-layer non-woven fabrics, a formaldehyde removing, benzene removing, TVOC removing, degerming and deodorizing filter module is designed by adopting secondary cellular activated carbon, an efficient HEPA filter module is made of efficient H13 and H14 materials by piling multiple layer of Z-shaped folds, the split type air purifier is low in noise and good in dust removing, TVOC removing, degerming, benzene removing, smoke removing and deodorizing effect, the PM2.5 can reach the level of 0.1 micron, the oxygen content of air is high, and the effect of air circulation without dead angles in a room is achieved.
Owner:牛京伟 +1

Prefabricated concrete component production system

The invention relates to a prefabricated concrete component production system. The prefabricated concrete component production system comprises a reinforcing bar production line for producing reinforcing bars and transversely extending, two prefabricated concrete wall plate production lines for producing prefabricated concrete wall plates and respectively positioned on two sides of the reinforcing bar production line, a fixed table mold production line and an overlapped plate production line respectively used for producing special-shaped components and overlapped plates and positioned on two transverse sides of the two prefabricated concrete wall plate production lines, and a concrete stirring station for providing concrete finished products for the fixed table mold production line, the two prefabricated concrete wall plate production lines and the overlapped plate production line; wherein the two prefabricated concrete wall plate production lines directly take the reinforcing bars from the reinforcing bar production line; and the fixed table mold production line and the overlapped plate production line take the reinforcing bars from the reinforcing bar production line through a second transportation rail crossing over all the production lines. The prefabricated concrete component production system is capable of improving a reinforcing bar and concrete supply mode, and improving the production efficiency.
Owner:CHINA CONSTR SCI & TECH CO LTD

Efficient suspension liquid fertilizer containing fulvic acid for lettuce and preparation method thereof

The invention discloses a method applied to efficient suspension liquid fertilizer containing fulvic acid for lettuce. The suspension liquid fertilizer includes, by weight, 10-25 parts of fulvic acid, 35-50 parts of major element, 1-10 parts of medium element, 0.2-3 parts of trace element, 0-3 parts of functional substance, 3-5 parts of suspended aid, 2-12 parts of a composite chelating agent, 0-1 parts of a defoaming agent, 0-1 parts of solution stabilizer, and a thickener. The preparation method comprises the steps of: adding water, potassium humate, nitrogen fertilizer and potassium fertilizer into a reactor A, and conducting high-speed stirring to prepare a saturated mother liquor; adding water, phosphate fertilizer, trace element material, a dispersing agent, a filler and partial defoaming agent into a reactor B, conducting high-speed stirring and grinding for the formation of a solid-liquid mixture; mixing the saturated mother liquor and solid-liquid the mixture, adding a thickening agent, residual defoaming agent and an anti-freezer, and emulsifying to prepare a suspension liquid fertilizer. The invention has the advantages of high total nutrient content, no layering or deposition, and realization of long distance transportation.
Owner:GUANGDONG FENGKANG BIOTECH

Method for preparing high-purity bulleyaconitine A

The invention discloses a method for preparing high-purity bulleyaconitine A. The method comprises the following steps of: soaking a fresh radix aconiti agrestis root in acid aqueous solution, performing homogenate extraction and cavitation mixing solid-liquid extraction, collecting and concentrating the filtrate, and respectively performing gradient elution to obtain a crude bulleyaconitine A product through ion exchange resin column chromatography and macroporous adsorption resin column chromatography; and uniformly mixing crude bulleyaconitine A product and ethanol aqueous solution, dissolving in a water bath, cooling the filtrate to room temperature, standing and crystallizing at the temperature of 4 DEG C, repeatedly washing the crystal by using the ethanol aqueous solution, and obtaining a final product. According to the method, crushing and extracting are finished in one step through a homogenization method, and the method has the advantages of zero dust and simple flow. By adoption of a negative-pressure cavitation extraction technology, the mass transfer rate is improved, heating is not required, and the production period is shortened; and moreover, the reagents used in the whole process are ethanol and water, the organic solvent amount is greatly reduced, the production cost can be reduced, the environmental pollution is reduced, and the method has good application prospect.
Owner:INST OF MEDICINAL PLANTS YUNNAN ACAD OF AGRI SCI

Automatic case unpacking machine

The invention discloses an automatic case unpacking machine which comprises a machine frame. A conveying system is arranged in the middle of the machine frame and comprises a front conveying system body and a rear conveying system body. The portion, between the front conveying system body and the rear conveying system body, of the machine frame is provided with a jacking belt mechanism. The front end of the jacking belt mechanism is provided with a stopper capable of being lifted. The jacking belt mechanism is provided with a first belt conveying mechanism. The portions, located on the left side and the right side of the jacking belt mechanism, of the machine frame are provided with side pressure clamping devices. An upper locating mechanism is arranged above the jacking belt mechanism. The bottom face of the upper locating mechanism is provided with a vacuum sucker. Four stand columns are arranged on the machine frame and are connected through four linear motion die sets to form a frame-shaped linear motion support. Each linear motion die set is provided with a cutting head. Each cutting head is driven by one alternating current servo motor to do linear motion on the respective linear motion die set. The automatic case unpacking machine is reasonable in design, simple in structure, easy to implement and convenient to use.
Owner:POTEVIO LOGISTICS TECH +1

Novel carbon fiber composite electric heating film and preparation method thereof

The invention discloses a novel carbon fiber composite electric heating film which comprises a conductive carbon fiber layer, wherein the conductive carbon fiber layer is of a meshy structure weaved by carbon fibers, two ends of the conductive carbon fiber layer are connected with metal electrodes, and the conductive carbon fiber layer is entirely cladded by an insulated heat conduction plastic film to form a laminated structure. The carbon fiber electric heating film provided by the invention is resistant of high temperature and not easy to oxidize; and the outer-layer heat conduction plastic of the carbon fiber electric heating film is an insulated material and can resist high temperature of 300 DEG C and high voltage; and therefore, the carbon fiber electric heating film provided by the invention has extremely high safety and can be guaranteed to be used for over 50 years. The carbon fibers supply heat to the external environment in an infrared irradiation mode, is free of dust, noise, wastes and waste gases and is basically free of electromagnetic irradiation. The invention has the advantages of concise preparation process, low cost, energy source saving and eco-environmental protection and accords with the environment protection and energy source development directions.
Owner:ANHUI UNIVERSITY +1

Method for preparing white carbon black by utilizing waste silicon rubber cracked residues

The invention relates to a method for preparing white carbon black by utilizing waste silicon rubber cracked residues. The method comprises the following steps of: crushing cracked residues, and calcining at high temperature; adding calcined ash residues, a certain amount of solid sodium hydroxide and water into a alkali-soluble reactor for reacting, and filtering to an obtain sodium silicate solution serving as filtrate; adding deionized water and a surfactant into a sol-gel reactor, and dripping an aqueous solution of sodium silicate and hydrochloric acid to obtain white carbon black, and washing, filtering, performing azeotropic dehydration with n-butyl alcohol and drying to obtain the white carbon black. According to the method, organic wastes in the residues are calcined at the high temperature to perform aerobic degradation reaction, so that toxic and harmful substances in the wastes are oxidized and pyrolyzed at the high temperature to be damaged; the superfine white carbon black is prepared from the calcined substances by the sol-gel technology; and the white carbon black has the advantages of high whiteness, small partical sizes, narrow particle size distribution, high flowability and the like, and the application range of the recycled products is broadened.
Owner:江山市华顺有机硅有限公司

Programmable high speed automatic pipe cutting machine

The invention belongs to the technical field of pipe processing equipment, in particular to a programmable high speed automatic pipe cutting machine. A controller and a belt pulley mounting frame are arranged on a rack, two groups of belt pulleys are horizontally arranged on a same side of the belt pulley mounting frame and driven by a stepping motor respectively, the two groups of belt pulleys are arranged up and down and respectively provided with synchronous belts with adjustable center distances, guide cylinders capable of passing through braided pipes are arranged at the two ends of the two synchronous belts respectively, a color code sensor for detecting shear color code is arranged on the inner side of a first guide cylinder, a braided pipe cutting mechanism is arranged on the outer side of the first guide cylinder, a photoelectric sensor for detecting storage allowance of the braided pipes is arranged on the outer side of a second guide cylinder, signals detected by the color code sensor and the photoelectric sensor are sent to the controller, and the controller controls the rotating degree of the stepping motor and movement of cutting mechanism cutting the braided pipes according to procedures. The programmable high speed automatic pipe cutting machine has the advantages of being high in automation degree and control function, low in cost, high in accuracy and the like.
Owner:WATTS VALVE NINGBO

Optical probe with blower for infrared thermodetector

The invention relates to an optical probe with a blower for an infrared thermodetector. The optical probe is characterized in that: an objective lens (101) and a transmission fiber (102) or an infrared sensor and a connecting wire thereof (102) are arranged in a tubular probe (100); a sealing protective window (103) is formed at the most front end of the tubular probe (100), and a film which reflects visible light and can be transmitted by infrared work spectrum is plated on the back of the protective window (103); the protective window is obliquely arranged in a blower (200); a high-pressure airflow can blow the surface of the protective window (103) through a pipeline (202) and an air duct (201) of the blower (200), and blows out through a minor-caliber peep tube (300) of which an ash leakage groove (301) is formed on the front end; the tubular probe (100) and the air duct (202) are straight parallel hard tubes, pass through two holes on an assembly flange (400), can flexibly adjust the distance with a target, and can be clamped and fixed by the assembly flange (400); the tail end of the hard tube of the tubular probe (100) is provided with a fiber connector (105) for externally connecting an extended armored fiber, or provided with a cable connector (105) for externally connecting an extended armored signal cable; and the tail end of the hard air duct (202) is provided with an air duct connector (203) for externally connecting an air feed pipeline.
Owner:上海协同物理研究所

High-efficiency deep desulfurization active carbon and preparation method thereof

The invention discloses high-efficiency deep desulfurization active carbon and a preparation method thereof, belonging to the field of modified active carbon materials. The high-efficiency deep desulfurization active carbon is prepared through the steps of by adopting coal or a coconut shell as raw materials, crushing, screening, then adding a coal tar adhesive for extrusion forming, and calcining at 750-950 DEG C to form primary active carbon; carrying out dipping treatment on the primary active carbon, uniformly loading a hydroxide active agent and a cyclodextrin assistant active agent, carrying out secondary high-temperature calcination in the presence of excessive heat water vapors to obtain a high-efficiency desulfurization active carbon product. The active carbon prepared through the method disclosed by the invention has the advantages of high sulphur capacity, high desulfurization speed, long usage period, high strength, good abrasion resistance, good material permeability, no dust and the like, can not only be used for the large-scale deep desulfurization and purification of petrochemical products such as fuel oil, natural gas, gas, liquid hydrocarbon and synthetic ammonia, but also be used for the fields of pharmaceutical gas sterilization, solution filtration and purification, solvent recovery, water purification, gas purification and the like.
Owner:JIANGSU ZHUHAI ACTIVATED CARBON CO LTD

Full-automatic numerical control sander

The invention discloses a full-automatic numerical control sander which comprises a base frame, a top cover, a working table and an electronic control system. The working table comprises a support base board, a rotary disc and a sanding mechanism, wherein the rotary disc and the sanding mechanism are installed on the support base board, an accessory clamp is arranged on the surface of the rotary disc, and the sanding mechanism is arranged to be a gantry structure based on a Cartesian rectangular coordinate system. The electronic control system comprises a movement controller. According to the full-automatic numerical control sander, the movement controller is utilized to preset machining process of accessories, the sander is controlled to automatically conduct polishing, sanding and machining, manual operation is replaced, labor intensity of workers and production cost are reduced, production efficiency is improved, machining accuracy is high, consistency of products is good, and quality of the products can be improved. A variable frequency motor is matched with a high-performance frequency converter, high-speed and silent operation can be achieved, the polishing and the sanding of the accessories are conducted on a top cover, a blowing cleaning mechanism is matched with a sanding head to automatically clean, production conditions (free of noise or dust) can be improved, and safety of workers is ensured.
Owner:LEVEL FA AUTOMATION SYST HUIZHOU +1
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