56results about How to "Improve recycling" patented technology

The invention discloses a method for filling and re-mining a roadway protection coal pillar in the residual mining area of an extra-thick coal seam. The method comprises the steps that firstly, a roadway parallel to the working face is formed in the upper portion of the roadway protection coal pillar of the extra-thick coal seam to serve as a grouting roadway, and when the working face is advanced to the roadway protection coal pillar, a thick and solid wall is laid on the side, close to a goaf, outside a working face hydraulic bracket rear scraper conveyer, a metal net is arranged on the upper portion of the wall, the side, close to the goaf, of the working face hydraulic bracket rear scraper conveyer is provided with a groove and a steel plate, the working face is continuously advanced through the method that top coal is not caved, and coal cutting is stopped after the rear scraper conveyer completely enters a straight section; at this time, a closed area is formed in the rear portion of the goaf and filled with paste, and the working face can be continuously advanced after filling slurry sufficiently makes contact with the roof; and the process is repeated, re-mining of the mining stopping line coal pillar of the extra-thick coal seam is completed, the recovery rate of coal resources is increased, and waste of the coal resources is greatly reduced. The method is simple in procedure, construction is convenient, and materials can be used at any time during mining.

The invention relates to a thin-ore-body shallow hole shrinkage method without sill pillar. The thin-ore-body shallow hole shrinkage method comprises the engineering of accurate mining, cutting, mining and ore withdrawal. The method is characterized by comprising the following steps of: in the engineering of accurate mining, tunneling a core withdrawal roadway, a communicating channel of a raised shaft, the raised shaft and a communicating channel entering a stope to an ore body after a level haulage roadway is completed; in the engineering of cutting, tunneling a cutting level gallery along the trending direction of the ore body inside the ore body, opening two outer sides of the cutting level gallery to a boundary line of the ore body after the cutting level gallery is completed, and simultaneously carrying out coping treatment on the cutting level gallery so as to form an ore block bottom free surface; in the engineering of mining, drilling a hole with a shadow hole rock drilling machine after the engineering of cutting is completed, carrying out rock drilling blasting mining from bottom to top so as to form a stope working surface, carrying out coyote blasting work on a top pillar after shallow mining is completed, and then carrying out large ore drawing ore removal work and ore removal. The thin-ore-body shallow hole shrinkage method without sill pillar is simple, efficient and safe, and no sill pillar remains. The recycle of ore columns is increased, and the recovery ratio and utilization ratio of resources are improved.

The invention discloses a production method of deinked pulp. The production method comprises the following steps of: (1) adding hot water and wastepaper raw materials to a drum pulper, and pulping the wastepaper raw materials; (2) removing material residues, and then enabling pulp to sequentially pass through a first-stage flotation tank, a multiple-disc filtering machine 1, a hot dispersion machine 1, a secondary-stage flotation tank, a multiple-disc filtering machine 2 and a dispersion machine 2 for carrying out impurity removal process so as to remove organic impurities in the pulp; (3) carrying out bleaching treatment on the pulp by using a high-concentration bleaching tower; (4) carrying out third-stage floatation treatment on the pulp; and (5) carrying out reduction bleaching treatment on the pulp by adopting a reduction bleaching tower so as to obtain the deinked pulp. The deinked pulp is used for producing the white cardboards and replacing conventional bleaching chemical pulp for coating and making the white cardboards, so that the cost of the white cardboards is reduced, the cycle use of fibers is improved, and the call of the nation for green and environmentally-friendly paper making is responded.

The invention provides a method for preparing a ternary lithium battery material precursor by utilizing spent lithium-ion batteries. Main ingredients comprise cathode material waste powder and metal sulfides, ternary lithium battery cathode scraps and nickel sulfide intermediate goods are taken as raw materials, nickel sulfide intermediate goods waste is added into lithium-ion battery cathode material scraps, a right amount of sulfuric acid is added and reaction and leaching are performed under high pressure condition, after pressure relief, a small amount of hydrogen peroxide is added to be taken as a reducing agent for continuously leaching valuable elements such as nickel, cobalt and manganese, impurity removal and matching are performed on leachate, and then metal ion mixed solution after the matching, ammonia water and sodium hydroxide are taken as raw materials for preparing a lithium-ion battery cathode material precursor. The method provided by the invention has high waste leaching rate, short flow, simple process and low cost, not only can treat lithium battery cathode material scraps in a large scale but also can treat abandoned nickel sulfide intermediate goods, so thatrecycling of the lithium-ion battery cathode material scraps and the abandoned nickel sulfide intermediate goods is promoted.

The invention relates to a comprehensive treating device for disassembling oil shoes and recycling useful materials in the old shoes. The comprehensive treating device comprises a coarse smashing module, a fine smashing module and a screening and separation module, wherein in the coarse smashing module, a plurality of saw blades are evenly arranged on two shafts and can perform opposite meshed high-speed rotation to coarsely smash the oil shoes; in the fine smashing module, four roller wheels are arranged in a cavity body regularly, two groovy rollers with the same inner diameter can achieve primary fine smashing on the old shoes through opposite meshed differential-speed rotation, two polishing rollers with the different inner diameters and two groovy rollers with the different inner diameters can achieve secondary fine smashing on the old shoes through opposite meshed equal-speed rotation, the screening and separating module can utilize an air blower to blow air to layer different masses of old shoe particles in the cavity body, and then the old shoe particles are classified and recycled. The comprehensive treating device disclosed by the invention can effectively smash waste shoes, the sizes of the smashed particles can be set as an adjustable mode according to need, the smashed materials can be screened and collected according to different masses, a resource utilization rate is improved, and environmental pollution caused by directly incinerating or burying the old shoes and resource waste are reduced.

The invention provides a suitcase leasing operation system and method with fixed borrowing and returning sites. The system comprises user terminals, suitcase terminals, suitcase storing, borrowing andreturning devices, an operation service management platform and a suitcase carrying system. The user terminals are terminal devices with a communication function and are used for sending a service request to an operation service management platform and receiving a feedback result. The suitcase terminals are used for positioning suitcases, preventing thievery, receiving platform information, authorizing users and counting the price and getting payment. The suitcase storing, borrowing and returning devices are used for storing the suitcases, and the users can select the suitcases nearby to be borrowed, returned and used on the user terminals. The operation service management platform is used for receiving and responding to a user suitcase using request, and the operation service managementplatform and all the suitcase terminals form a leasing management system. The suitcase carrying system receives an instruction of the operation service management platform and conducts balance distribution management on the density of the suitcases. The suitcase leasing operation system and method have the advantages of being low in operation cost and beneficial for the shared using of the suitcases.

The invention provides a converter flue gas pure dry purification and waste heat deep recovery system. The system comprises a gasifying-cooling flue, a water/steam cooling cyclone separator, a waste heat recycling device, a ceramic fiber filter, a fan and a three-way switching valve which are connected in sequence through a pipeline, wherein the other two ends of the three-way switching valve areconnected with a coal gas recycling pipeline and a flue gas difusing pipeline respectively; a flue gas component analyzer is arranged between the fan and the three-way switching valve. By adopting thesystem, converter flue gas can be subjected to dust removal under a whole-dry condition, so that the consumption of water and vapor is lowered; meanwhile, waste heat in a low-medium-temperature segment of the converter flue gas is recycled on a large scale, so that the recycling amount of the waste heat resource is improved, and a remarkable energy saving effect is achieved.

The invention belongs to the technical field of superfine fiber synthetic leather and imitated leather, and in particular relates to figured island fiber and a preparation method of the imitated leather. Island composite components of the figured island fiber provided by the invention contain protein. The method for preparing the imitated leather from the figured island fiber, provided by the invention, comprises the following steps of 1, preparing the figured island fiber; 2, preparing non-woven cloth; 3, preparing synthetic leather; 4, preparing the imitated leather. The figured island fiber and synthetic leather base cloth prepared from the figured island fiber have protein components by adding animal protein into the island composite components, grease can be effectively kneaded and filled by using a processing technology during the after-treatment of the base cloth, and highly-imitated leather which is full, oily and pendulous can be prepared.

The invention is applicable to the technical field of materials, and provides a PEF heat shrinkable film. The PEF heat shrinkable film comprises an outer film layer, a middle film layer and an inner film layer, wherein each of the outer film layer and the inner film layer is prepared from, by weight, 40-55 parts of high-pressure low-density polyethylene, 15-25 parts of high-density polyethylene, 10-15 parts of an ethylene-vinyl acetate copolymer, 5-10 parts of polyurethane acrylate, 5-10 parts of modified argil, 4-6 parts of oleamide and 2-5 parts of an antioxidant; and the middle film layer is prepared from, by weight, 25-35 parts of high-pressure low-density polyethylene, 20-30 parts of high-density polyethylene, 10-15 parts of the ethylene-vinyl acetate copolymer, 2-6 parts of modifiedgas silicon, 4-6 parts of oleamide and 1-3 parts of the antioxidant. The PEF heat shrinkable film formed by compounding the raw materials which are nontoxic and wide in source is stable in appearance,has good physical and mechanical properties such as the heat shrinkage rate, the tensile property and the tearing strength, is suitable for package and transportation of articles including but not limited to foods, electronic products and the like, and has good development prospects.

The invention relates to a morchella esculenta (L.) Pers nutrient bag, a preparation method thereof and a morchella esculenta (L.) Pers interplanting culture method. The morchella esculenta (L.) Pers nutrient bag comprises, by weight, 28-32% of wheat grains, 35-38% of rape pods, 28-32% of saw dust, 1-2% of quicklime and 1-2% of gypsum. The invention further provides the preparation method of the morchella esculenta (L.) Pers nutrient bag and the morchella esculenta (L.) Pers interplanting culture method. The invention provides a nutrient bag culture formula capable of increasing the yield of morchella esculenta (L.) Pers. According to the morchella esculenta (L.) Pers nutrient bag, by using the rape pods, in cooperation with other raw materials, new resources for planting of the morchella esculenta (L.) Pers are developed, and recycling of rape crops is improved. The external nutrient bag can be removed locally, rich nutrients are provided for the rape crops, the yield is increased, application of a chemical fertilizer is reduced, and the cost is lowered.

The invention relates to the field of microbial electrochemistry, and particularly relates to an electricity generation device adopting a hollow fiber membrane module as the anode of a methane-drivenmicrobial fuel cell and an electricity generation method. The electricity generation device comprises an anode chamber and a cathode chamber, wherein the anode chamber takes the conductive hollow fiber membrane module as an electrode material, the hollow fiber membrane module continuously provides a gas substrate methane as an electron donor for the microbial fuel cell by being connected with a gas steel cylinder, and the cathode chamber takes carbon felt as an electrode material. The electricity generation device is suitable for all microbial fuel cell systems taking gas as a substrate, and the improved hollow fiber membrane module not only can conduct electricity, but also improves the mass transfer efficiency of the gas substrate, so that the electricity generation efficiency of the microbial fuel cell is improved. According to the invention, a fiber membrane reactor and a microbial electrochemical system are integrated together, so that the development of a microbial fuel cell technology taking methane as a substrate and the recycling of energy sources are promoted, and the emission of greenhouse gas methane is also reduced at the same time.

The invention relates to shield slurry dewatering apparatus. The apparatus comprises a power supply, perforated cathode plates connected with the power supply, flat ceramic membrane tightly adjacent to the perforated cathode plates, a slurry storage tank, anode plates, a vacuum water collecting device, a backwashing device, a purging aeration device and a conical clamping groove for storing solidmatter; each plate ceramic membrane and the corresponding perforated cathode plate together form a cathode membrane; the upper end of each plate ceramic membrane is connected with the vacuum water collecting device, wherein the vacuum water collecting device is used for collecting aggregated electrolytic clarified filtrates flowing in from the perforated cathode plates and the plate ceramic membranes during dewatering operation; the lower end of each plate ceramic membrane is connected with the backwashing device through a pipeline, wherein the backwashing device which is used for backwashingthe plate ceramic membranes to prevent soil particles from being blocked; and the bottom of the slurry storage tank is provided with the purging aeration device and the conical clamping groove for storing solid matter, wherein the conical clamping groove is used for collecting positive-ion soil particles accumulated near the anode plates during dewatering operation, and the purging aeration deviceis used for blowing high-pressure gas to stir slurry to roll. The slurry is stirred to roll, so that the flat ceramic membranes and the electrode plates are prevented from being polluted.

The invention discloses a method for separating and recovering valuable metal from high-bismuth copper slag. The high-bismuth copper slag is subject to sulfur making smelting, and raw bismuth, lead bismuth matte, smelting slag and dust-containing smoke are produced; and the lead bismuth matte is subject to acidification size mixing and oxygen pressure leaching in sequence, solid-liquid separationis carried out after oxidizing leaching to obtain leaching liquid and leaching slag, the leaching liquid is subject to rotational flow electrolysis to obtain cathode copper, and the leaching slag returns to a slag-to-lead smelting system to be recovered. The overall process is simple, the method is environment-friendly, the flow is simple, operation is simple, the operation cost is low, and the comprehensive recovery degree is high.

The invention discloses a new energy automobile waste battery recovery device which comprises a rack, wherein a feed inlet is formed in one end of the rack, a discharge hole is formed in the other endof the rack, and a discharge opening is formed in one side of the rack. The new energy automobile waste battery recovery device is characterized in that a power mechanism is arranged at one end of the rack, a crushing mechanism is arranged on one side of the power mechanism, an air flow screening mechanism is arranged on one side of the crushing mechanism, one end of the air flow screening mechanism is connected to the power mechanism, a smashing mechanism is arranged on one side of the air flow screening mechanism, a transfer mechanism is arranged on the other side of the power mechanism, amagnetic screening mechanism is arranged on one side of the transfer mechanism, and a storage mechanism is arranged at the discharge hole. The new energy automobile waste battery recovery device has the beneficial effects that the new energy automobile waste battery recovery device can crush and screen a waste battery periodically; primary screening can separate impurities such as diaphragm paperfragments in battery fragments effectively, and secondary screening can separate impurities such as metal materials with recovery value and crushed battery housings effectively, so that the recovery quality and the work efficiency of the new energy automobile waste battery recovery device are improved effectively.

The invention provides a production line and a technology for preparing an aluminophosphate cementing material from white clay. White clay residues/carbide slag, ground phosphorite, aluminum materialsand crystal nuclein are conveyed to a stirrer by a dosing machine and an electronic belt scale for uniform mixing and stirring; a mixture is conveyed to a rotary kiln and calcined for 20-40 min untilthe temperature of the mixture reaches 900-1100 DEG C; after calcination, the mixture is cooled to 300-400 DEG C by a cooler; after cooling, the mixture is subjected to powder grinding by a first ball mill, and the special aluminophosphate cementing material is prepared. According to the production line and the technology, the white clay can be eliminated, and beautiful natural ecological human settlements in the local area are powerfully protected; recycling of renewable resources is accelerated, waste is changed into wealth, harmful substances are changed into beneficial substances, pollution is treated, environment is improved, the occupied land resources are released, besides, the graceful environment can be created for people, and the ecological environment with harmony and unification between man and nature is promoted.

The invention provides a rainwater collecting and storing system of a sidewalk and greenbelts on the two sides. The system is composed of the sidewalk, a water permeable pipe and the greenbelts. The sidewalk is a road formed by laying water permeable bricks. The water permeable pipe is embedded in a road under layer, and a base layer, a leveling layer and a brick layer are arranged on the road under layer. The greenbelts are composed of planting base layers, coarse sand filter layers and crushed pebble layers. The planting base layers adopt artificial soil. Nonwoven geofabrics are arranged between the crushed pebble layers and the coarse sand filter layers. Garden bounding walls are built in the positions, from the upper edge of the road under layer to the position higher than the surfaces layers of the greenbelts, of the joints of the greenbelts and the road. The system is suitable for the ground or underground spatial top plates, and water can be filtered, stored and collected while the greenbelt area is increased. Greenbelt planting matrixes are low in weight and capable of holding water and effectively filtering harmful substances in rainwater, plants are not lack of water in the dry season with little rain, the rainwater can be filtered through the layers and is gathered at the water permeable pipe along with the gradient and collected to municipal water collecting pipelines in the heavy rainy season, and thus recycling of the water is promoted.

The invention relates to a deburring process and deburring equipment for a circuit board and belongs to the technical field of circuit board deburring. The process is characterized by comprising stepsthat Step 1, deburring a surface of the circuit board after hole opening is completed; Step 2, the circuit board after surface deburring is conveyed by a conveying device so that the circuit board istransported to a predetermined position in a predetermined direction; and Step 3, a high-pressure water spray device is utilized to rinse the hole of the circuit board on the conveying device, and burrs in the circuit board hole are removed. The process is advantaged in that during use, deburring of the circuit board hole can be conveniently completed, influence of deburrs on operation of the circuit is reduced, and safe performance of use of the circuit board can be improved.

The invention discloses a quartz sand production line and a quartz sand production method. The quartz sand production line comprises an ore washing and sorting system, a warehousing system, a sand making system and a water circulating system. The sand making system comprises a fine crushing line, a screening mechanism, a secondary processing line and a drying line. The fine crushing line is connected to the ore washing and sorting system. The screening mechanism is provided with a finished product discharge port and an inferior-quality product discharge port. The inferior-quality product discharge port is connected to the input end of the secondary processing line. The secondary processing line and the finished product discharge port are both connected with the input end of the drying line. The water circulating system comprises an acid supply device, an adjusting pool and a muddy water processing unit. The acid supply device is connected with the ore washing and sorting system. The input end of the muddy water processing unit is connected with the adjusting pool. The muddy water processing unit supplies purified waste water to a pickling line, a flushing and sorting line and a secondary processing line through pipelines. By means of the quartz sand production line and the quartz sand production method, inferior-quality product ores and waste water in the quartz sand productionprocess can be recycled, and production cost is reduced.

The present invention relates to a method of liquefying a natural gas stream, wherein the natural gas stream (10) is provided at a pressure of 30-80 bar, expanded to a pressure < 35 bar, supplied to a gas/liquid separator (31) and therein into a vaporous stream (40) and a liquid stream (30). The pressure of the vaporous stream is increased to a pressure of at least 70 bar and the pressurized vaporous stream (90) is liquefied to obtain a liquefied natural gas stream.

The invention discloses a scraped automobile oil collection device which comprises a sliding plate and a waste oil tank, wherein rollers are arranged at the bottom of the sliding plate; the waste oiltank consists of an upper part and a lower part; the upper part is of a square pyramid structure with a larger upper part and a smaller lower part; the lower part is of a square structure; both the upper part and the lower part are of communicated hollow structures; a circular oil outlet is formed in the lower end of the lower part; an oil inlet is formed in the top surface of the upper part. Whenthe scraped automobile oil collection device is used, scraped automobile oil can be greatly recycled, impurities in the scraped automobile oil can be filtered off, and the device is high in recyclingefficiency and convenient to use.

The invention relates to the technical field of waste clothes harmless disposal devices, in particular to a waste clothes harmless disposal system and method. A transmission belt is connected with a shredding device which is connected with a high-speed strike impurity-removing gravity impurity dropping device, the high-speed strike impurity-removing gravity impurity dropping device is connected with a dust collection device which is connected with a screening device, the screening device is connected with a high-temperature sterilizing device which is connected with a drying device, and the drying device is connected with a finished product collection device. The method includes the steps of feeding, spiral compressing and uniformizing, shredding and smashing, screening and dedusting, high-temperature sterilizing and packaging and disposing. The prior art is adopted to promote recycling, retreatment and re-utilization of waste clothes to realize reproduction of resources and efficient utilization of clothes so as to protect environment and save resources.

The invention discloses a waste oil liquid recycling device which comprises a sliding plate, a waste oil tank and a connecting pipe, wherein rollers are arranged at the bottom of the sliding plate; abrake assembly is arranged on the roller; the waste oil tank is composed of an upper part and a lower part; the upper part is of a big-end-up quadrangular frustum pyramid structure, and the lower partis of a square structure; the upper part and the lower part are both of communicated hollow structures; a circular oil outlet is formed in the lower end of the lower part; an oil inlet is formed in the top surface of the upper part; the connecting pipe is connected with the oil inlet; the connecting pipe is of a repeated-bending structure, and a plurality of staggered perforated plates are arranged in the connecting pipe. When in use, the waste oil liquid recycling device disclosed by the invention has the advantages that the recycling of automobile waste oil can be greatly improved, and filtering out impurities in the waste oil can be realized, and has high recycling efficiency and is convenient to use.

The invention discloses a solid waste treating and comprehensively utilizing method and system. The method is characterized by comprising the steps: sending solid waste into a pyrolyzing furnace by aconveying device, pyrolyzing the solid waste in the pyrolyzing furnace, choosing whether filtering treatment is performed and whether oil recovery treatment operation are performed on pyrolyzing gas generated by pyrolysis according to ingredients of the pyrolyzing gas; further choosing whether waste heat recovery and air preheating operation need to be performed, wherein all the control can achieve selection of different work modes by controlling switches of electric control valves at the corresponding positions. According to the method, different work modes can be flexibly chosen in the samesystem according to the characteristics of pyrolyzing gas generated by pyrolysis, heat of high-temperature gas generated by in all the links can be fully utilized, and the purpose that the heat is fully utilized before the gas is exhausted is ensured; high-quality tar products are increased and recycled, the whole system has strong adaptability, treatment on varieties of solid waste can be met, comprehensive utilization is achieved, an application prospect is wide, and great market value is achieved.

The invention relates to the technical field of tea processing, and discloses an efficient drying device for tea processing. The efficient drying device comprises a box body, a feeding opening and a discharging opening; a circle of grooves is inwards formed in each of the left curved side face and the right curved side face of a drying cylinder, and a plurality of air holes are evenly formed inside the grooves; the middle parts of the upper side wall and the lower side wall of the box body are fixedly provided with a set of air heaters with opposite output ends correspondingly, the right end of the air heater at the lower side and the left end of the air heater at the upper side communicate with a set of air conveying pipes of which the end parts extend to the position right below the grooves at the right side and the position right above the grooves at the left side respectively, and the left end of the air heater at the lower side and the right end of the air heater at the upper sidecommunicate with a set of return pipes of which the end parts extend to the position right below the grooves at the left side and the position right above the grooves at the right side respectively;and a discharging cavity is fixedly arranged in the middle part of the outer top of the drying cylinder. The efficient drying device for tea processing has the advantages that air circularly flows andfor heating, tea leaves are uniformly overturned and heated, and automatic discharging is achieved, so that overall work is efficient.

The invention discloses a zinc-containing pyrite cinder processing method, and belongs to the technical field of mineral processing metallurgy. The method comprises the steps of selection of a pyrite cinder raw material, grinding, magnetic separation of iron ore, sulfur removal and sulfide precipitation of zinc. Iron ore magnetic separation of a pulp obtained after the selection of the raw material and grinding comprises one-time coarse roughing; coarse iron concentrate obtained after the coarse roughing is desulphurized, hydrochloric acid and sulfuric acid are adopted as a mixed sulfur leaching agent in the desulphurization work to carry out stirring leaching, and solid-liquid separation is carried out to obtain high quality iron concentrate; and sodium sulfide is added to a liquid obtained after the solid-liquid separation to carry out sulfide precipitation, solid-liquid separation is further carried out to obtain high quality zinc concentrate, and the remaining liquid returns to be used in a separation and metallurgy combination system. The method has the advantages of good recovery effect of iron and zinc resources in the pyrite cinder, high grade and high recovery rate of the obtained concentrate, good environmental benefit, simple operation, and suitableness for popularization and application.

The invention discloses a process for extracting metallic antimony from antimony soot, which comprises the following steps: S1, leaching: mixing antimony soot with a sodium hydroxide solution, leaching, and carrying out liquid-solid separation; S2, oxidation: adding an oxidizing agent into the filtrate obtained after liquid-solid separation in the step S1, and carrying out liquid-solid separationoperation again after the reaction is completed, wherein the oxidizing agent comprises at least one of hydrogen peroxide, pure oxygen, ozone or sodium peroxide; and S3, reduction: the solid obtained after liquid-solid separation in the step S2 is antimony concentrate, adding a reducing agent into the antimony concentrate, then conducting reduction smelting, and obtaining metal antimony. Compared with the prior art, according to the scheme, after alkaline leaching, oxidation and reduction are conducted in sequence, high-purity metal antimony is prepared, meanwhile, multiple kinds of metal can be recycled step by step, the comprehensive recycling degree is high, and the process has the advantages of being low in production cost, environmentally friendly, good in economic benefit and the likeand is suitable for industrial large-scale production.

The invention discloses a method and a system for producing hydrogen and co-producing charcoal through biomass pyrolysis gasification. The system comprises a microwave pyrolysis reactor, a gasification reactor, a reforming transformation reactor and a combustion regenerator, the method comprises the following steps: feeding a biomass raw material into a microwave pyrolysis reactor for pyrolysis to generate gaseous volatile components and biochar; activating the biochar in a gasification reactor to obtain a biochar product; and the generated gaseous volatile component enters a reforming transformation reactor to react to obtain a hydrogen product. According to the method, reaction characteristics and product distribution characteristics in the pyrolysis process are fully utilized, synchronous production of high-quality hydrogen and activated carbon is realized through controllable coupling of pyrolysis, gasification and reforming transformation processes, the economical efficiency of the process is greatly improved, and the method has a good application prospect.

The invention relates to a production line and a process for preparing sulphoaluminate cement by using white mud, wherein the production line comprises a feeding device, a drying device, a calcining device, a heat collecting device, a dust removing device, a coal supply device, a burning device, and a milling device. According to the present invention, the sulphoaluminate cement is prepared by carrying out mixed calcining on white mud residue/carbide residue, industrial gypsum powder/natural gypsum powder, aluminum ash/aluminum raw material and a crystal nucleus agent. With the production lineand the process of the present invention, the white mud is eliminated so as to powerfully protect the beautiful natural ecological habitat of the local area; the recycling of renewable resources is accelerated, the waste is turned into treasure, the pollution is controlled, the environment is improved, the occupied land resources are released, the beautiful environment is created for people, andthe harmonic and uniform ecological environment for human and nature is promoted; the shortage of the special cement such as sulphoaluminate cement on the market is effectively alleviated, and the shortage of the short supply and demand in the domestic special cement market is overcome; and the heat generated in the production process can be fully recovered, and the work efficiency is improved.

The invention discloses an isolation device for fish culture in the field of ecological culture, and relates to the technical field of ecological culture. The isolation device for fish culture in the field of ecological culture comprises a fishpond, a cleaning mechanism and a fixing mechanism, an isolation filter screen is arranged in the fishpond, a mounting box is arranged on one side of the fishpond, the mounting box is buried and fixed underground, and the top of the mounting box is open. According to the isolation device for fish culture in the field of ecological culture, through cooperative use of a second motor fixing plate, a second motor, a threaded rod, a limiting rod, a moving block and a moving rod, impurities and excrement on the isolation filter screen are removed, and the situation that the isolation filter screen is soaked in water for a long time and is prone to being blocked by fish excrement is prevented; therefore, the service life of the isolation filter screen can be effectively prolonged, compared with a traditional isolation device, the isolation device can effectively promote recycling of water resources, and meanwhile the sustainable use time of the isolation device can be prolonged.

The invention relates to a smelting method for iron ore, in particular to a blast furnace smelting method for vanadium-titanium magnetite. The blast furnace smelting method for the vanadium-titanium magnetite includes the steps that a, limestone is taken, smashed and ground so that limestone powder can be obtained; b, burdening is performed according to the following weight ratio, wherein the weight ratio of iron ore concentrate to the limestone powder to pulverized coal is equal to (200-400): (1.5-4): (0.5-1), and meanwhile the slag alkalinity is adjusted to 1.4-1.7; c, after the limestone powder and the pulverized coal are mixed, a mixed material is sprayed into a blast furnace combustion area through a blast furnace bypass air port branch pipe, and is calcined for 40-60 min under 900-1100 DEG C; and d, the material calcined in the step c is cooled to the room temperature through furnace cooling, and then is taken out, smashed and ground, and vanadium-titanium magnetite powder is obtained. According to the blast furnace smelting method for the vanadium-titanium magnetite, the pulverized coal and the limestone powder are utilized, by means of blast furnace calcining reduction, impurities in the vanadium-titanium magnetite are reduced, recycling of resources is promoted, and the grade of iron in the vanadium-titanium magnetite is improved.