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The invention provides a system and a method for gasification melting of household refuse and treatment of household refuse leachate. The system comprises a household refuse pretreatment system, a refuse energy recovering system and a refuse leachate concentration and flue gas treatment system, wherein the household refuse pretreatment system comprises a household refuse stock bin, a household refuse crusher, a household refuse sieving machine and a household refuse extrusion dehydrator which are sequentially connected; the refuse energy recovering system comprises a fluidized-bed gasifier, a cyclone melting furnace, a waste heat boiler and an air-supplying and oxygen-enriching system matched with the fluidized-bed gasifier, the cyclone melting furnace and the waste heat boiler; the refuse leachate concentration and flue gas treatment system comprises a leachate concentrating system, a flue gas purifying device and a wastewater treatment device. According to the system, the heat value of the refuge is increased by a pretreatment process; an oxygen-enriching gasifier and a high-temperature cyclone melting furnace technology are used as a recovering system of refuge energy; the refuge leachate is concentrated by using medium-temperature flue gas exhausted by the waste heat boiler; the concentrated leachate is sprayed into the high-temperature cyclone furnace for harmless treatment.

The invention relates to a steel slag treating technology which can be used for treating steel slag after which is stabilized by adopting a hot and stuffy method. According to the technology, the steel slag is treated by the procedures of screening, crushing, magnetic separation, purification and the like through utilizing the mode of combining an open loop and a closed loop circulation to obtain five high-value-added high-quality products, namely first-type bulk slag steel with the grade of more than or equal to 80% and particle size of 150mm, a second-type bulk slag steel with the grade of more than or equal to 80% and particle size of 50-150mm, slag steel with grade of more than or equal to 85% and particle size of 10-50mm, magnetic separation powder with grade of more than or equal to 42% and particle size of 10mm, and metal iron content (2% of tailings with the particle size of 10mm), wherein the first-type bulk slag steel and the second-type bulk slag steel and the slag steel with the grade of more than or equal to 85% can be returned for steelmaking, the magnetic separation powder can be used for sintering, and the tailings can be used for producing steel slag micropowder as high-activity admixture of cement and concrete and the like. Through the technology, the zero emission of the steel slag can be realized, the defects that the steel slag stored occupies a large area and pollutes the environment can be solved, and the economic benefits of a steel mill can be increased.

The invention discloses a recovery method of steel slag residual heat and system thereof. The system is composed of a steel slag flow distributor, a water-cooling granulation wheel, a first fluidized bed, a weigher, a vibration sieve, a hot slag particles bunker, a second fluidized bed, a dedusting device, a blower and a residual heat boiler in sequence. The method is that, pouring high-temperature liquid slag into the steel slag flow distributor, the steel slag flown out of the steel slag flow distributor falling onto the water-cooling granulation wheel and being crushed and throwing out to fall into the first fluidized bed for exchanging heat with air, hot slag particles discharged from the first fluidized bed is stored in the hot slag particles bunker after going through the weigher and the vibration sieve, and discharging when the temperature is cooled to 350 DEG by a heat exchanger of the second fluidized bed. High-temperature air discharged from the first fluidized bed and the second fluidized bed enters the residual heat boiler for exchanging heat after dedusting. The invention can reduce energy consumption in steel production, graining effect of the steel slag is good, which is benefit for following degradation of free CaO and magnetic separation of wasted steel.

The invention provides a method for directly growing a carbon nano tube array on a fiber substrate. The method comprises the following steps: (1) pre-treating the fiber substrate; (2) attaching a catalyst precursor on the surface of the substrate obtained in the step 1, wherein the catalyst comprises transitional metal elements such as Fe, Co, Ni, Cu, Au, Pt, Mo or Ag; (3) putting the substrate obtained in the step (2) in a reaction furnace, heating the substrate to a first temperature and maintaining for a preset time, and introducing inert gas to remove organic matters in the catalyst precursor; (4) heating to a second temperature and maintaining for a preset time, continuously introducing inert gas, introducing mixed gas of reductive gas and carbon source gas, maintaining the pressure in the reaction furnace, and growing high-density carbon nano tubes on the surface of the substrate; and (5) after reaction, stopping introduction of the reductive gas and carbon source gas, and continuously introducing inert gas till the temperature is reduced to room temperature.

The invention belongs to the technical field of polluted soil treatment and restoration and discloses an arsenic-polluted place soil restoration stabilizer. The arsenic-polluted place soil restoration stabilizer is characterized in that bentonite mass is 1-5% arsenic-polluted soil mass, calcium sulfate mass is 0.1-1% arsenic-polluted soil mass, a mole ratio of iron powder to arsenic in polluted soil is in a range of 3: 1 to 10: 1, plant ash mass is 2-8% arsenic-polluted soil mass, bentonite is dried in the air, crushed and sieved by a sieve of 100-200 meshes, iron powder fineness is in a range of 100-200 meshes, the arsenic-polluted place soil restoration stabilizer is added into the arsenic-polluted soil, then the mixture is subjected to dry stirring for full mixing and then is added with water so that soil water content is in a range of 30-35% and then the mixture is subjected to stirring. The arsenic-polluted place soil restoration stabilizer utilizes cheap and easily available raw materials, has good stabilization effects, substantially does not change a polluted soil pH value, can supply nutrients for polluted soil and is conducive to soil treatment and follow-up utilization.

The invention discloses a method for producing methane through combination of perishable organic wastes and straws. The method comprises the following steps: step 1, collecting the perishable organic wastes and the straws, and respectively crushing; step 2, filling the crushed perishable organic wastes on percolation fillings of a solid percolation bed, adding fermenting methane inoculants, and carrying out anaerobic hydrolysis to produce acid so as to form percolate; step 3, collecting the percolate discharged from the bottom of the solid percolation bed, adding the percolate and the crushed straws into a straw pretreatment reactor, heating, soaking and pre-treating; and step 4, collecting a mixture of hydrolysis acid production residues, and pre-treated straws and percolate, adding the mixture into a methane fermentation reactor, and carrying out hybrid anaerobic fermentation to produce the methane. According to the invention, acid poisoning of the perishable organic wastes, which is easy to happen in the conventional anaerobic fermentation process, and abrasion of equipments and pipelines in the conventional strong acid/strong alkali pretreatment can be avoided, the pretreatment cost of the straws is reduced, the method is beneficial for subsequent utilization of methane residues, and the fermentation performance of the methane is improved.

A metal line inner core recycle device of a power supply and utilization cable comprises a base, a feeding part, limitation parts, a cutting part, an outer skin recycle part, an inner core winding part, an inner core recycle part and a cut part inner core recycle box, wherein the feeding part is a feeding wheel, a cable is wound around the feeding wheel, the limitation parts are limitation rings arranged vertically, a cutting knife is arranged on the cutting part and is used for cutting the cable to a plurality of strips, an inner core and an outer skin which are cut and separated are respectively wound the inner core winding part and the outer skin recycle part, and the inner core on the inner core winding wheel is wound the inner core recycle wheel and is cut to achieve fixed length recycle of metal strips. By the device, the inner core and the outer skin of a waste cable are rapidly cut, and the fixed length mass production and recycle of the inner core of the cable become possible. The device is high in automation, a separation effect of the inner core and the outer skin is good, the inner core and the outer skin are simultaneously and orderly wound during the separation process, and subsequent utilization is facilitated.

The invention relates to a device and method for pyrolyzing pea coal by utilizing an internally heated vertical furnace. The device comprises an internally heated vertical furnace, wherein a feed hopper, a drying section, a first transition section, a pyrolysis section I, a pyrolysis section II, a second transition section, a cooling section, a discharge valve and a discharge hopper are arranged on the internally heated vertical furnace sequentially from top to bottom, wherein the drying section is communicated with a dry steam circulating fan and a high-temperature steam circulating fan; the dry steam circulating fan is communicated with the cooling section; the pyrolysis section I is communicated with a coal gas heat exchanger and a micro-cyclone dust collector; the micro-cyclone dust collector is communicated with a quencher; the quencher is communicated with a raw gas heat exchanger; the raw gas heat exchanger is communicated with a coal gas heat exchanger and a horizontal water-tube cooler; the horizontal water-tube cooler is communicated with an electrical tar precipitator; the pyrolysis section II is communicated with a combustion furnace and the micro-cyclone dust collector; the combustion furnace is communicated with the coal gas heat exchanger. The device and method are easy to operate, high in heat efficiency, environment-friendly and high in carbocoal quality, and the coal gas can be recycled.

The invention relates to the technical field of treatment of kitchen waste, in particular to a kitchen waste hydrothermal three-phase separation system. In the kitchen waste hydrothermal three-phase separation system, a heating device is arranged on the outer wall of a hydrothermal reactor tank body and is a conduction oil coil pipe; the conduction oil coil pipe is clung to the side wall of a hydrothermal reactor to provide thermal energy for the kitchen waste, and the interior of the hydrothermal reactor is heated evenly; a thermal energy recovery device is arranged on a three-phase separator, and comprises a thermal energy recovery coil pipe arranged on the outer wall of a three-phase separator tank body, and a thermal energy recovery guide pipe connected with the thermal energy recovery coil pipe. According to the invention, the kitchen waste is heated by the conduction oil, so that the energy can be saved and the cost can be reduced; the kitchen waste is heated under a water condition to realize full hydrolyzation, and is discharged through jet explosion, so that the hydrolyzation is performed more thoroughly, and the subsequent utilization is facilitated. The three-phase separator integrates the functions of explosion bearing, flash vaporization and three-phase separation, and an outer water coil pipe is arranged for recovery of the thermal energy, so that the recycling of the thermal energy is realized, and the kitchen waste cannot be blocked at the same time.

The invention discloses a clean process method for efficiently extracting chromium in extracted vanadium tailings. For the extracted vanadium tailings, a silicon fixing agent is added while silicon is leached with low-concentration sodium hydroxide; the silicon is converted into an inert compound in the alkaline leaching and chromium extracting process; the inert compound is subjected to alkaline leaching and chromium extracting to obtain sodium chromate alkali solution with lower silicon content and iron-enriched tailings, so that high-efficiency extraction of the chromium in the extracted vanadium tailings and comprehensive utilization of valuable components are realized. According to the clean process method disclosed by the invention, the high-efficiency extraction of the chromium in the extracted vanadium tailings can be realized, the extraction rate of the chromium is larger than 85 percent, and the content of the silicon in the obtained sodium chromate alkali solution is lower.

The invention discloses an absorbent for circularly absorbing sulfur dioxide gas in tail gas of natural gas and an application of the absorbent. The absorbent comprises the following components in percentage by mass: 30-60wt% of cyclic tertiary amine compounds, 5-10wt% of a desulfurization fortifier, 10-30wt% of a latent solvent, 0.5-3wt% of an activating agent, 1-2wt% of an antioxidant, 0.5-2wt% of a corrosion inhibitor and the balance of water. The application refers to applying the absorbent to removal of the sulfur dioxide gas in the tail gas of the natural gas at an absorption temperature of 20-70 DEG C. According to the invention, by utilizing the structure characteristics of the cyclic tertiary amine compounds which are high in sulfur dioxide absorption capacity and low in desorption energy consumption, and adding corresponding auxiliary agents at the same time, the absorption of absorption liquid to sulfur dioxide has high efficiency and specificity; and the absorbent can selectively remove SO2 from the tail gas of the natural gas, so as to greatly reduce the gas purification cost, and facilitate follow-up utilization of recycled acid gas.

The present invention relates to the field of polarization imaging, and more particularly to a bi-mode full polarization imaging measurement method, comprising the use of a snapshot mode or a time division mode to conduct full polarization imaging measurement to a target. The method is technically performed as follows: an incident light passes sequentially in its transmission direction the coaxially arranged elements of a filter, a first modified Sava-type polarizer, a half-wave plate, a second modified Sava-type polarizer and a polarizer, and is then converted into four parallel beams of linearly polarized light, followed by a process of imaging for a first interference pattern of the incident light which forms S0 ~ 3 images of the incident light after demodulation. Through the 90-degree horizontal rotation of the polarizer along the plane where the polarizer is located and another process of imaging, a second interference pattern of the incident light can be available. The adding of the first interference pattern and the second interference pattern forms a full resolution S0 image that eliminates crosstalk targets. The images S1-S3 are obtained through the demodulation of the differential image of the first interference pattern and the second interference pattern. The polarization direction angle of the polarizer is 22.5 degrees. The present invention provides a bi-mode polarization measurement method for selecting different modes of full polarization imaging for different requirements of different targets.

The invention relates to an edible oil production and processing technology, in particular to a method for extracting camellia oleosa seed oil by weak acid aqueous solution. The technical scheme adopted by the invention is that camellia oleosa seeds are taken as raw materials, and are added in the weak acid aqueous solution for slurry mixing after being subjected to superfine grinding, the constant temperature mixing and extracting are carried out on slurry after the slurry is gelatinized for a period of time, and the obtained extract liquid is subjected to two-step centrifugal separation to obtain the camellia oleosa seed oil. The camellia oleosa seed oil is clear, transparent, light yellow, and even golden yellow, does not contain benzo(a)pyrene, has no residual organic solvent, and can reach the national-level camellia oil edible safety standard without refining or after being subjected to simple refining. According to method, the production technology is simple, biological enzyme is not used during the production process, the processing temperature is low, the production cost of the camellia oleosa seed oil is lowered, so that the method is suitable for industrial large-scale production; meanwhile, the problems of low camellia oleosa seed oil yield, high energy consumption, existence of residual organic solvent, serious active nutritional ingredient loss and the like in a conventional production method are solved.

The invention discloses an ash cooling device for garbage burning, which comprises parts for controlling ash entering, cooling and ash discharging; according to the ash cooling device, the cooling of ash is realized, and the heat energy of hot ash can be used for heating air so as to dry and burn garbage; and by the adoption of the device, the dry-process cooling and the discharging of ash during garbage burning are realized, harmlessness of ash and reasonable utilization of heat energy during garbage burning are realized, a variety of disadvantages caused by water-cooled deslagging are avoided, and the device is an energy-saving, safe and environment-friendly ash cooling device for garbage burning in the field of garbage treatment.

The invention discloses plastic cleaning equipment comprising a cleaning box, a top cover and cleaning devices, the top cover is rotationally connected to the center of the top of the cleaning box, the cleaning devices are rotationally connected to the positions, close to the top cover, between the two corresponding sides of the inner wall of the cleaning box, and the cleaning devices are evenly distributed in the cleaning box. A roller is fixed to the center of the surface of a driving rotating shaft and located in the cleaning box, cleaning brushes are fixed to the surface of the roller and evenly distributed on the surface of the roller, and a brushing device is fixed to the surface of the roller. According to the plastic cleaning equipment, the purposes of pressing down and cleaning are achieved, flaky floating plastic chips are pressed down to make full contact with water, rise through the buoyancy of the flaky floating plastic chips and are combined with the cleaning equipment for rapid cleaning, smooth completion of cleaning work is facilitated, adaptability is high, limitation is reduced, and the cleaning efficiency and the use performance are improved.