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56results about How to "Improve recycling" patented technology

Method for filling and re-mining roadway protection coal pillar in residual mining area of extra-thick coal seam

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.
Owner:TAIYUAN UNIV OF TECH

Thin-ore-body shallow hole shrinkage method without sill pillar

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.
Owner:ANSTEEL GRP MINING CO LTD

Method for preparing ternary lithium battery cathode material precursor by utilizing spent lithium-ion batteries

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.
Owner:GUANGDONG JIANA ENERGY TECH CO LTD +1

Comprehensive treating device for disassembling old shoes and recycling useful materials in old shoes

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.
Owner:WUHAN UNIV OF TECH

Suitcase leasing operation system and method with fixed borrowing and returning sites

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.
Owner:广东集采电商供应链有限公司

PEF heat shrinkable film and preparation method thereof

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.
Owner:汕头市明佳热收缩膜有限公司

Electricity generation device adopting hollow fiber membrane module as anode of methane-driven microbial fuel cell and electricity generation method

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.
Owner:FUJIAN AGRI & FORESTRY UNIV

Shield slurry dewatering apparatus

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.
Owner:HUNAN UNIV +1

New energy automobile waste battery recovery device

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.
Owner:SHAANXI RUIKAI ENVIRONMENTAL PROTECTION & TECH CO LTD

Sidewalk and greenbelt water collecting and storing system

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.
Owner:LIAONING UNIVERSITY OF TECHNOLOGY

Quartz sand production line and quartz sand production method

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.
Owner:广西港桥新型建材有限公司

Solid waste treating and comprehensively utilizing method and system

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.
Owner:GUANGDONG TIANYUAN ENVIRONMENTAL TECH

Efficient drying device for tea processing

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.
Owner:舒城桢玥绿丰园农民专业合作社

Zinc-containing pyrite cinder processing method

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.
Owner:KUNMING UNIV OF SCI & TECH

Production line and process for preparing sulphoaluminate cement by using white mud

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.
Owner:福建鼎盛元环保科技有限公司

Blast furnace smelting method for vanadium-titanium magnetite

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.
Owner:攀枝花市徳铭再生资源开发有限公司
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