117results about How to "For subsequent recycling" patented technology

The invention discloses a household garbage crushing sorting system. The sorting system consists of a quantitative feeding device, a magnetic separation device, a gravity gradient sorting device, a pendulum type crushing device, an air separation device, a needle selection device and a material conveying device. The sorting system is compact in structure, can achieve continuous production, is high in production efficiency, simple to operate, safe and reliable, and can divide urban household garbage into decayable organic matter, combustible wastes, metal, glass and light recoverable matter, so that the urban household garbage can be sufficiently utilized as a resource, and the sorting system has very high environmental benefit and social benefit simultaneously.

The invention relates to the technical field of metallurgy, in particular to a pretreatment method for refractory gold ore with antimony and arsenic. The method comprises the steps that 1, the refractory gold ore with antimony and arsenic is broke and subjected to ball milling to form powder; 2, the powder obtained in the step 1 is added into a hermetic vertical pipe type heating furnace, neutral protective gas is introduced in, roasted ore is obtained after roasting and cooling are carried out, produced tail gas enters a tail gas collection device, collected smoke dust is leached through a mixed solution of Na2S with the concentration of 50-200 g/L and NaOH with the concentration of 20-100 g/L, solid-liquid separation is carried out, a filter residue with arsenic and a leaching solution with antimony are obtained, and the leaching solution is electrodeposited to produce metal antimony, wherein leaching time is 30-180 min, and leaching temperature is 20-95 DEG C. The pretreatment method has the advantages that the technological process is simple, operation is flexible, roasting time is short, energy consumption is low, antimony and arsenic can be synchronously removed, smoke gas is low in toxicity and small in amount, and economic and social benefits are good.

The present invention is one kind of middle-sized garbage sorting and recovering method and apparatus. Wind force and water power are utilized to separate bottle and jar, floated matter, semi-floated matter, etc. from garbage while washing garbage.

The invention discloses a method of synergistically vulcanizing and roasting lead-zinc smelting slag and gypsum slag. The method comprises the following steps of: mixing lead-zinc smelting slag, gypsum slag and a carbonaceous reducing agent for reducing sulfurization roasting, using the gypsum slag as a vulcanizing agent to directionally convert lead, zinc and other heavy metals in the lead-zinc smelting slag into metal sulfides easy for flotation separation, enabling calcium in the gypsum slag to react with iron and silicon compounds in the lead-zinc smelting slag to generate calcium ferriteand calcium silicate compounds which can be used for manufacturing building materials and cement, and enabling arsenic in the gypsum slag to be volatilized and enriched in smoke dust to be recycled. The method has the advantages of being low in energy consumption and environmentally friendly, can solve the problem of environmental pollution caused by existing gypsum slag and lead-zinc smelting slag treatment, and has good application and popularization prospects.

The invention relates to the technical field of textile processing and discloses a cleaning device for textile processing. The cleaning device comprises a rack, wherein a feeding roller and a receiving roller are rotationally connected to the rack; a first cleaning mechanism and a water removal mechanism are arranged on the rack; the first cleaning mechanism comprises a first roller and a second roller, the first roller is coaxially connected to a first gear, a second gear is rotatably connected to the rack, the second roller is coaxially connected to a third gear, a first cavity is fixedly connected to the rack, a first worm wheel is rotatably connected in the first cavity, and the first worm wheel is connected to a fan gear coaxially; a fourth gear is also engaged to the fan gear, the fourth gear is coaxially connected to a fifth gear, a first rack is engaged to one side of the fifth gear, a second rack is engaged to the other side of the fifth gear, a first pull rod is fixedly connected to the first rack, a second pull rod is fixedly connected to the second gear, and the water removal mechanism comprises a third roller and a fourth roller. The cleaning device provided by the invention can clean textiles quickly thoroughly.

The present invention discloses one kind of small garbage sorting and collecting method and apparatus. Water with certain specific weight, flowability and buoyancy is used as medium and several sieving, filtering and intercepting mechanisms are adopted to separate floated matter, organic matter and deposited matter effectively from garbage.

The invention belongs to the field of inorganic salt chemical industry and fertilizer production, particularly relates to a method for producing magnesium oxide with co-production of ammonium chloride by taking magnesium carbonate hydrate as an intermediate. The method comprises the following steps of: with anhydrous magnesium chloride or bittern magnesium chloride as a raw material and with ammonia and ammonium bicarbonate as precipitating agents, obtaining the magnesium carbonate hydrate intermediate (the purity reaches 97-99 percent) with favorable crystal form by controlling process conditions; calcining the obtained magnesium carbonate hydrate intermediate to prepare magnesium oxide (the purity reaches 95-99 percent); adding salt to mother liquor enriched with ammonium salts and evaporating, salting out and cooling to separate out ammonium chloride, and filtering to obtain the ammonium chloride, wherein the mother liquor is circularly taken as a raw material. The method aims at producing needle-shaped or spherical magnesium carbonate hydrate by utilizing rich magnesium chloride brine from salt lakes, or magnesium chloride brine from seawater, or anhydrous magnesium chloride used for producing titanium sponge by-products, and other magnesium salt materials, thereby preparing high-purity magnesium oxide with the simultaneous co-production of ammonium chloride fertilizer. The method of the invention has strong maneuverability and is easy to realize industrialization.

The invention discloses a method for recovering alkali, selenium and arsenic in arsenic-alkali residue from antimony smelting, comprising the following steps: (1) immersing arsenic-alkali residue in water, filtering and washing to obtain antimony slag and an arsenic-alkali solution; (2) concentrating the arsenic-alkali solution until concentration of arsenic is 12-17 g/L, introducing CO2 to obtainsodium hydrogen carbonate and primary crystallization mother liquor, concentrating the primary crystallization mother liquor until concentration of arsenic is 48-60 g/L, and introducing CO2 to obtainsodium hydrogen carbonate and secondary crystallization mother liquor; (3) using acid to regulate pH of the secondary crystallization mother liquor to 1-4, heating and reacting to obtain black selenium and a selenium-removed solution; and (4) carrying out SO2 reduction on the selenium-removed solution, conducting evaporation and concentration, cooling for crystallization and filtering to obtain arsenic trioxide and an arsenic-removed solution. By the above method, efficient recovery of alkali, selenium and arsenic in arsenic-alkali residue is realized, and effective enrichment of antimony isalso realized, oxidation for deep antimony removal is not required, arsenic-alkali separation is thorough, no sodium arsenate composite salt is generated, and acid consumption and use amount of a reducing agent are low. In addition, the process is concise, and the method has good economic and environmental benefits.

The invention discloses a cloth waste treatment device for spinning. The cloth waste treatment device comprises an outer shell, wherein the four corners of the bottom of the outer shell are connectedwith stand columns; the left upper part of the outer shell communicates with a feeding channel; the left side of the top of the feeding channel communicates with a hopper; the left end and the right end of the feeding channel are rotatably connected with conveying rollers; a conveyor belt is arranged between the two groups of conveying rollers in a sleeving mode; the top of the inner cavity of thefeeding channel is connected with an electric heating wire; the upper part of the inner cavity of the outer shell is symmetrically connected with guide inclined plates left and right; a crushing mechanism is arranged below the guide inclined plates; the left side wall of the inner cavity of the outer shell is connected with a mounting base; the bottom of the mounting base is connected with a vibrating motor; the lower end of the vibrating motor is in power connection with a screen; the right side wall of the outer shell is equipped with a reflux mechanism; and the bottom of the inner cavity of the outer shell is connected with a discharge bin. The cloth waste treatment device is reasonable in structural design, can dry cloth waste, is beneficial for improving the crushing effect, and introduces unqualified fragments into the outer shell again to crush through the reflux mechanism, so that the cloth waste treatment effect is improved.

The invention relates to a device and a method for recovering and concentrating ortho-toluidine in ortho-toluidine wastewater by membrane extraction. The method comprises: conveying wastewater containing ortho-toluidine to a silicon rubber extraction membrane tube, wherein the silicon rubber extraction membrane tube is put in an acidic extraction solution, ortho-toluidine in the wastewater can penetrate through the tube wall of the silicon rubber extraction membrane tube, enter into the extraction solution and react to generate ortho-toluidine ions, and the rest of the wastewater is discharged from the outlet of the silicon rubber extraction membrane tube with standard level or post-treatment; and taking out the extraction solution when the concentration of the ortho-toluidine ions in the extraction solution exceeds a predetermined value, and adding alkali liquor into the extraction solution to obtain recovered and concentrated ortho-toluidine. According to the device and method provided by the invention, the extraction solution is acidic and is reacted with alkalescent ortho-toluidine to generate the ortho-toluidine ions which cannot penetrate through the silicon rubber extraction membrane tube so as to prevent the ortho-toluidine from returning to the wastewater again. A lot of ortho-toluidine can be separated and concentrated, the mass transfer velocity is relatively rapid, industrial treatment and concentration and recovery of the ortho-toluidine are facilitated, and the use level of the extraction solution is extremely little.

The invention relates to the technical field of comprehensive processing methods of waste residues, and concretely relates to a waste paper light residue recovering and processing technology. The technology comprises the following steps: (1) light residues are magnetically separated; (2) the magnetically separated light residues are fed into a pulp disintegrator, and are disintegrated to obtain afirst-stage accepted stock and a first-stage residue pulp; (3) the first-stage residue pulp is processed by a defibrizer, a re-crusher and a cylinder screen to an accepted stock, the accepted stock returns into the pulp disintegrator, and is disintegrated again, and the first-stage accepted stock goes through a residue remover and a pressure screen to obtain a second accepted stock and a second-stage residue pulp; (4) the second-stage accepted stock enters an OCC line heavy residue remover and is recovered, and the second-stage residue pulp enters a flotation light residue machine to obtain athird-stage accepted stock and a third-stage residue pulp; (5) the third-stage accepted stock enters the pulp disintegrator, and is disintegrated, and the third-stage residue pulp enters an impurity separator, and undergoes flotation to obtain a fourth-stage accepted stock and a fourth-stage residue pulp; and (6) the fourth-stage accepted stock enters the pulp disintegrator, and is disintegrated again, and the fourth-stage residue pulp and the residue pulp which is obtained after treatment using the cylinder screen are mixed, and then undergo sludge pressing treatment. Valuable components in the light residue of the waste paper pulping workshop are recycled to the greatest extent, and recycled metal and plastic granules which are the externally transported have single composition, and canbe conveniently recycled subsequently.

The invention discloses a coiling device for cable production, and relates to the technical field of cable processing equipment. The coiling device for cable production is used for achieving the purpose that a roller assembly can be independently taken out. The device specifically comprises a bottom plate. A supporting plate is fixedly connected to the outer wall of the top of the bottom plate, acantilever crane is fixedly connected to the outer wall of the top of the supporting plate, a supporting assembly is fixedly connected to the outer wall of the top of the cantilever crane, and a roller assembly is rotationally connected to the outer wall of the top of the supporting assembly. A stand frame is fixedly connected to the outer wall of the top of the bottom plate, a feeding assembly isfixedly connected to the top outer wall of the stand frame, and a connecting assembly is fixedly connected to the outer wall of the top of the bottom plate. According to the coiling device for cableproduction, because the supporting assembly is arranged, and a U-shaped groove is formed in the outer wall of the top of a fixed base, the roller assembly can conveniently go in and out of a device body vertically; and furthermore, because a first rotating wheel and a second rotating wheel are used in cooperation with trunnions, the roller assembly rotates on the outer wall of the top of the supporting assembly, and the roller assembly can be conveniently recycled after coiling work is completed.

Soy protein spraying equipment comprises a soy protein recycling barrel and a multi-nozzle spray gun. The multi-nozzle spray gun is located between the central axis and the lower barrel wall of the recycling barrel, and the number of nozzles of the multi-nozzle spray gun is N which is a natural number greater than 1; the included angle between the two neighboring nozzles is 360 degrees/N. The soy protein spraying equipment is controllable in spraying quantity, even in spraying angle and reasonable in atomization coverage.

The invention discloses a casting waste residue recycling device, and relates to the technical field of waste residue recycling . The casting waste residue recycling device comprises a first conveyingbelt, wherein a crushing mechanism is arranged at the output end of the first conveying belt and has a crushing function; a magnetic separation mechanism is arranged at the output end of the crushingmechanism; a second conveying belt is arranged at the output end of the magnetic separation mechanism; a sorting mechanism is arranged at the output end of the second conveying belt; the sorting mechanism has a screening function; the magnetic separation mechanism comprises a magnetic conveying belt; the conveying belt of the magnetic conveying belt has magnetism; and a material collecting vehicle is placed at the bottom of the magnetic conveying belt. According to the casting waste residue recycling device provided by the invention, through the arrangement of the crushing mechanism, blocky casting waste residues can be crushed into a granular mixture; and in combination with the arrangement of the magnetic separation mechanism, iron alloy-containing particles and casting sand particles in the granular mixture can be separated, so that subsequent recycling is facilitated.

The invention provides domestic garbage treatment equipment. The domestic garbage treatment equipment comprises a housing, a movable frame and a crushing structure, wherein the two sides of the movable frame are separately fixed to the two sides of the inner wall of the housing; the crushing structure is arranged inside the movable frame; the crushing structure comprises a first rotary shaft and asecond rotary shaft; one end of the first rotary shaft and one end of the second rotary shaft are rotatably connected to the two sides of the front surface of the inner wall of the movable frame separately; and the outer surface of the first rotary shaft and the outer surface of the second rotary shaft are fixedly connected with first crushing wheels. The domestic garbage treatment equipment hasmultiple crushing functions, and effectively crushes domestic garbage; and moreover, a distance between the two first crushing wheels is greater than that between two second crushing wheels, so that domestic garbage of different sizes enters the movable frame to perform crushing work, and therefore, domestic garbage crushing effect is improved, and crushing efficiency is improved.

The invention discloses a hammer machining device capable of cleaning and recycling chippings. The hammer machining device comprises a bottom plate, a first fixing column, a second fixing column, an index plate, a punching machine, a first waste collecting frame and the like. A first fixing column is fixed to the middle of the top wall of the bottom plate, a second fixing column is fixed to the middle of the top wall of the first fixing column, an index plate is installed on the top of the bottom plate, a punching machine is installed on the right side of the bottom plate, and a first waste collecting frame is arranged on the lower side of the punching machine. According to the steel plate punching device, a steel plate can be punched, meanwhile, crushed materials, sweeps and the like generated during machining can be collected in the steel plate machining process, follow-up recycling is facilitated, and resource waste is reduced; when the index plate rotates, the sliding material pushing plate slides in the material storage frame through cooperation of the feeding gear ring and the L-shaped sliding rod, the sliding material pushing plate can push the steel plate into the magnetic material carrying barrel while sliding, and the automatic feeding function is achieved.