87results about How to "Guaranteed decomposition" patented technology

The invention discloses a low-temperature automobile expansion adhesive. The low-temperature automobile expansion adhesive is made of the following raw materials in parts by weight: 100 parts of a polymer, 3-5 parts of a peroxide vulcanization agent, 0.5-3 parts of a vulcanization auxiliary agent, 5-15 parts of a foaming agent, 0.5-8 parts of a foaming activator, 1-10 parts of a filler, 2-15 partsof a tackifier, 0.5-3 parts of a lubricant, 0-2 parts of an antioxidant, and 0-10 parts of a flame retardant. According to the low-temperature automobile expansion adhesive, the raw material composition is carefully chosen, the content of each raw material is optimized, and the prepared low-temperature automobile expansion adhesive has high foaming ratio and small product density, and can fill large cavities. The expansion adhesive has high bonding strength with an ABS framework member. The expansion adhesive has good high-temperature baking stability. The expansion adhesive after foaming isnot easy to collapse and shrink. The low-temperature foaming performance and high-temperature foaming ratio are well balanced. The storage stability is good, the product quality is stable, and a storage period is relatively long.

The invention discloses a preparation method of a honeycomb-shaped Mn-based low-temperature denitration catalyst. The preparation method comprises steps as follows: (1), titanium dioxide, a molecularsieve and a solution containing manganese nitrate, cerium nitrate and iron nitrate are mixed uniformly, a mixture is dried, roasted at low temperature and smashed, and a powdery material is obtained;(2), the powdery material obtained in the step (1) is subjected to a forming process of the denitration catalyst, and the honeycomb-shaped Mn-based low-temperature denitration catalyst is obtained. The catalyst prepared with the method has larger pore volume and higher strength and is good in forming performance and not prone to cracking, the active components are manganese oxides in different valence states, and the catalyst is excellent in denitration performance and has good capability of resisting water vapor and SO2 poisoning.

The invention discloses a soft-touch modified material with low volatile organic compounds and low odor and a preparation method thereof and belongs to the technical field of high molecular materials.The soft-touch modified material is prepared from the following raw materials in parts by mass: 20 to 40 parts of high-melt-index co-polypropylene, 10 to 30 parts of glass fiber, 1 to 2 parts of an anti-scratching agent, 15 to 40 parts of high-crystallization homo-polypropylene, 20 to 30 parts of a thermoplastic elastomer, 3 to 5 parts of a compatilizer, 0.3 part of a main antioxidant, 0.2 part of an auxiliary antioxidant and 0.5 part of a lubricant. The soft-touch modified material disclosed by the invention can be used for reducing the odor concentration of the material and the content of the volatile organic compounds; a technology is simple and convenient to operate and the production benefits are high.

The invention relates to a composting device and discloses a vertical type multi-layer aerobic biological composting device. The vertical type multi-layer aerobic biological composting device comprises a vertical cylinder, wherein a sealing cover is arranged on the top of the vertical cylinder, a feeding hopper is arranged on the sealing cover, a plurality of partition plates are vertically distributed in the vertical cylinder and are used for dividing the vertical cylinder into a plurality of partition layers, and a blanking door is arranged on each partition layer; a rotary shaft which simultaneously penetrates through the sealing cover and the partition plates is vertically arranged, a drive motor is arranged on the outer end part of the rotary shaft, and a plurality of stirrers corresponding to the partition layers are arranged on the rotary shaft. An air feeding tube which is communicated with the partition layers simultaneously is arranged at one side of the outer part of the vertical cylinder, and an air extracting tube which is communicated with the partition layers simultaneously is arranged at the other side of the outer part of the vertical cylinder. The device can be used for recycling various urban and rural organic solid wastes, the floor space of the composting device is reduced, and the device has important theoretical and practical significance in guaranteeing the urban environment to be beautiful and promoting the development of regional economy.

The invention relates to a composite material, a catalyst using the composite material as a carrier, and a preparation method and applications of the catalyst, wherein particularly an electrocatalystN/MO2-C based on metal oxide-electric conduction material composite fiber/MO2-C and using the metal oxide-electric conduction material composite fiber/MO2-C as a carrier is prepared based on an electrospinning technology and a solution method. According to the present invention, the electrocatalyst carrier/MO2-C is metal oxide-electric conduction material composite fiber; the catalyst carrier canbe dispersed in the solution, and then Pt catalyst particles can be introduced through a reducing method, or a Pt salt precursor can be added to a spinning solution, and then the Pt-based electrocatalyst is prepared through a one-step method; through the addition of the electric conduction carbon material and the one-step low temperature treatment of the polymer nanometer fiber at the late stage,the loose porous structure of the prepared carrier is ensured while the electric conductivity of the carbon material to the carrier and the structural stability are ensured; and through the one-step low temperature treatment in the air or oxygen atmosphere, the oxidation of the metal precursor salt is ensured while the decomposition of the polymer precursor and the stable presence of the carbon material are ensured.

The invention relates to the field of solid waste treatment, in particular to a method and system for treating chemical abraum salt containing organic matter through a self-propagating pyrolysis method. The method comprises the following steps that pretreatment is carried out in a pelletizing or washing or treating-free mode according to particle size distribution of chemical abraum salt; 2, materials are distributed; 3, pyrolysis treatment is carried out, and particularly organic matter in a material layer is pyrolyzed into a gas compound through a self-propagating pyrolysis method; 4, the pyrolyzed material layer is cooled to obtain finished salt; and 5, flue gas treatment is carried out, and particularly flue gas containing the gas compound is introduced into a flue gas purifying treatment system for purifying treatment. The finished salt obtained from the abraum salt treated through the method has no melting and agglomeration phenomenon, the TOC content is as low as 10.00ppm, and the requirements of ionic membrane caustic soda can be met. The invention further provides a treating system adopting the method, a self-propagating pyrolysis device in the system can sufficiently utilize heat, can stably control pyrolysis temperature and is suitable for treatment various kinds of abraum salt.

The invention discloses a pyrolysis device for processing desulfurization waste liquid in a partial oxidation environment. The pyrolysis device comprises a pressure-bearing housing, a jacket, an insulating layer and a refractory brick which are arranged from outside to inside and connected together, and a gas separation section I, a spray pyrolysis section II, a mixed flow pyrolysis section III, an inactive salt pyrolysis section IV and a pyrolysis salt chilling section V are communicated from top to bottom to treat the desulfurization waste liquid in the partial oxidation environment. The device adopts a segmental treatment mode, so that decomposition of aromatic compounds and organic matters in the desulfurization waste liquid is ensured in the partial oxidation environment, COD and sulfides in the generated wastewater are reduced, meanwhile, pyrolysis of the inactive salt in the desulfurization waste liquid in the reducing atmosphere is ensured; therefore, the pollution problem of the desulfurization waste liquid is thoroughly solved and effective components in the desulfurization waste liquid can be recycled.

The invention provides a method for absorbing wind turbine blade wastes in a cement kiln. The method comprises the following steps: separating metal parts and high-chlorine content parts in the wind turbine blade wastes, and segmenting the remaining wind turbine blade wastes as massive wastes; grinding the massive wastes into particles so as to obtain ground materials; and taking the ground materials as alternative fuel of the cement kiln, and combusting the fuel in a cement kiln decomposing furnace. The method disclosed by the invention is simple, practical, less in initial investment and subsequent maintenance cost, environment-friendly and harmless, belongs to a circular economy manner, accords with the treatment policy of 'reduction, recycling and harmlessness' of municipal wastes, can thoroughly implement and carry out the national policy of cooperatively treating non-medical wastes and industrial wastes in the cement kiln, solves the thermosetting material waste disposal difficulty problem troubling the society for a long time, provides alternative fuel and raw materials for the high-energy-consumption cement industry and has wide application prospects.

The invention relates to the technical field of magnesium oxide production, and concretely relates to a preparation method of magnesium oxide. The method comprises the following steps: 1)placing the crude magnesium oxide powder in a container, adding pure water for blending, washing a blended slurry to remove impurities, 2)pumping the slurry into a revolving bed reactor for reacting to obtain a slip, 3)aging the slip and separating to obtain magnesium hydroxide, drying, and 4)placing magnesium hydroxide in a high temperature calciner, employing a dynamic calcining method for calcining to obtain the magnesium oxide particles, and crushing and grading to obtain the silicon-steel grade magnesium oxide. Compared with a traditional silicon-steel grade magnesium oxide, the silicon-steel grade magnesium oxide produced by the invention has the advantages of low impurity content, uniform and adjustable particle size particle size distribution, low hydration rate, good suspensibility and stable quality.

The invention discloses an aquarium circulation life-supporting system with high load and resistance to water quality fluctuation. Three independent modules including a sand cylinder filtration module, a water quality purification module and a water quality regulation module are arranged, so that the sand cylinder filtration amount does not need to be completely matched with a subsequent process,and the sand cylinder filtration effect can be greatly improved; an ultraviolet (UV) combined ozone sterilization system is adopted, and an aeration buffer tank is arranged, so that secondary pollution is avoided while efficient sterilization is achieved; the water quality regulation module optimizes quality indexes of outlet water, so that the outlet water is more suitable for survival of organisms; and the sand cylinder module is provided with an automatic countercurrent cleaning process, so that load resistance and regeneration capability of the system are effectively improved. The whole novel circulation life-supporting system can effectively improve the purification rate and purification degree of a water body through organic combination of all parts, water quality fluctuation resistance of the system is improved, stability of the system is enhanced, and the system can be widely applied to various types of aquarium.

The invention discloses a method for preparing building ceramsite from quartz sand tailing, belongs to the technical field of quartz sand application, and solves the problem of huge cost of high-hardness building ceramsite in the prior art. The method comprises the following steps: (1) preparing materials; (2) feeding; (3) scattering, namely, respectively putting the conveyed quartz tailing and sludge into a scattering machine for scattering; (4) firing in a rotary kiln, namely, putting the mixed raw material which is scattered and uniformly mixed in the step (3) into a rotary kiln for roasting until the size of the mixed raw material is stable and the strength is increased, so as to obtain a primary ceramic material; (5) pelletizing, namely, putting the raw material fired in the rotary kiln in the step (4) into a pelletizing machine to be processed into spheres; (6) calcining, namely, putting the spherical raw material processed and formed by the pelletizing machine in the step (5) into a calcining machine for calcining to obtain a high-hardness and high-strength finished ceramsite product; (7) burdening; and (8) conveying. The ceramsite is high in hardness and low in cost.

The invention discloses a method for recognizing the mercury forms. The method comprises the following steps that 1, a sample is heated to be decomposed, a first curve that the mercury concentration changes along with temperature changes is obtained, and then the decomposing temperatures of various mercury compounds are obtained; 2, the decomposing temperatures of various mercury compounds in the step 1 are compared with the decomposing temperature of a standard mercury compound, and then the forms of part of mercury in the sample are recognized; 3, the mercury compounds which are not recognized in the step 2 are recognized through a step-by-step chemical extraction method. The invention further discloses a corresponding device. According to the method, the forms of most mercury in the mercury-containing solid sample can be recognized through temperature increasing desorption, and meanwhile the forms of the mercury compounds of which the decomposing temperatures overlap in the sample can be further recognized by combining the step-by-step chemical extraction method; in addition, by means of a constant-temperature thermal decomposition unit in the device, it can be guaranteed that mercury in all forms can be completely decomposed, and then mercury form recognition is more accurate.

The invention relates to the technical field of an agricultural device, and particularly relates to a pumpkin seed threshing machine. The pumpkin seed threshing machine comprises a frame, a negative pressure blower, a horizontal grid plate and an oblique plate; the grid plate and the oblique plate are fixed on the frame, and the oblique plate is located beneath the grid plate; several lines of pillar blocking lines are evenly arranged on the oblique plate from top to bottom, and every pillar blocking line comprises several blocking pillars, a blocking pillar gap is formed between two adjacentblocking pillars in every pillar blocking line; the pillar blocking gap of a lower line of pillar blocking line is smaller than the pillar blocking gap of an upper pillar blocking line; the inner partof the blocking pillar is provided with a hollow cavity, and the side face of the blocking pillar is provided with several through holes connected with the hollow cavity, and an air suction pipe connected with the hollow cavity is further arranged on the blocking pillar; the air suction pipe is connected with the negative pressure blower. The patent aims to solve the problem that the pumpkin seedthreshing machine in the prior art cannot screen out all pumpkin seeds from a pulp body.

The invention discloses a nanotube-based fluorescence marked carrier and a preparation method thereof. The fluorescence marked carrier comprises a nanotube inner wall, a quantum structure and a nanotube outer wall. The size of the nanotube structure is designed according to the characteristics of a simulated carrying object, and the size of the nanotube structure is regulated and controlled accurately by controlling the growth condition; in the fixed-temperature annealing process, a nanowire in a core-shell structure is guaranteed to be decomposed completely and the quantum structure limited between the nanotube inner wall and the nanotube outer wall is not damaged; the fluorescence marked part of the nanotube adopts a semiconductor quantum structure, has high fluorescence intensity, long duration time and stable photochemical property, is insusceptible to photobleaching and realizes high-efficiency radiative recombination; furthermore, continuous broad spectrum excitation can be adopted, the absorption coefficient is big, fluorescence emission peak is narrow, wavelength trailing is avoided, and the distinguishing degree is high; the nanotube structure can realize fluorescence marked carrying of the carrying object in the tube and also can perform the traditional wrapping or combined type fluorescence marked carrying.

The invention relates to an air premixed type flare combustor capable of treating poisonous gas. A flare gas cylinder body of the combustor is arranged inside an air clamping sleeve body for forming a clamping sleeve body structure, and swirling plates are arranged inside the clamping sleeve body structure; a flare gas nozzle is installed at the upper end of the flare gas cylinder body; a combustion chamber is connected to the outer wall of the upper part of the air clamping sleeve body through a supporting assembly, and the air clamping sleeve body extends into the combustion chamber; a temperature monitoring element is installed on the inner wall of the combustion chamber; the combustion chamber is of a cylindrical shape, and a gap is formed between the lower part of the combustion chamber and the air clamping sleeve body and accepts entry of secondary air; an ever-burning lamp, an igniter and a combustion-assisting device are arranged outside the air clamping sleeve body in the circumferential direction, are connected to the air clamping sleeve body and extend into the combustion chamber. According to the flare combustor, the air partial combustion-supporting mode is adopted, flames are short, combustion is stable, and the burn-off rate of the poisonous exhaust gas is greatly increased; the height and the manufacturing cost of a torch can be effectively lowered on the same exhaust condition.

The invention belongs to the technical field of preparation of foam metal materials, and particularly relates to application of sago as a pore former, a pore former and a method for preparing foam metal through the pore former. In view of the problems that existing pore formers used for preparing foam metal are high in cost, poor in pore-forming effect, difficult to move and the like, the invention provides the application of sago as the pore former during preparation of foam metal, and further provides the pore former and the method for preparing the foam metal. Metal powder and the pore former of sago are added into a binder to be mixed, then compacted into a billet, demolded and dried; pre-sintering is conducted; and the foam metal is obtained through sintering. The pore former of sagois good in pore-forming effect, easy to remove, is safe and environmentally friendly. The method for preparing foam materials through sago is simple in process, high in cost performance, free of environment pollution, prepared foam steel, foam titanium and foam copper have the advantages of being controllable in pore size, porosity, pore shape and the like, and the pore former and method have goodapplication prospects in the aspects of energy absorption control, biology and filtration separation.

The invention discloses a technology for preparing ethylene from calcium carbide through a wet process. Quick lime and coke are taken as raw materials, an electrode paste is used for adhering and is sintered into electrodes, and the raw materials are fused at high temperature of between 2,000 and 2,500DEG C in an electric furnace to form CaC2. The method is carried out in a wet acetylene generator, and a great amount of reaction heat is moved by means of excessive water. Theoretically, when the calcium carbide forms the ethylene, 1kg of calcium carbide requires 0.562kg of water; and actually, 1kg of calcium carbide requires 10 to 20kg of water.

A method for measuring single crystal deuterating rate of dideuteropotassium phosphate includes applying NETZSCHSTA 449 c thermogravimeter ; setting temperature up rising program as staring from 30 deg.c , heating up to 260 deg.c with speed rate of 5 deg.c / min and holding constant temperature for one hour , then heating up to 450 deg.c with speed rate of 5 deg.c / min and holding constant temperature for one hour to obtain a thermogravimetric curve ; calculating out weight loss rate from said curve and substituting it into formula of x ( % ) = [ ( x / 1 ¿C x ) x 58.648 ¿C 8.948 ] x 100 for deriving out deuterating rate of DKDP crystal sample .