178 results about "Plate waste" patented technology

The invention discloses a method for classifying, treating and recycling plating washing water on line, which comprises the following steps of: removing oil, coarsening, reducing, activating, peptizing, chemically plating nickel, preplating nickel, plating copper, plating nickel and plating chromium in a plating process; and treating water and washing water during production and cleaning. The method specifically comprises the following steps of: preparing pure plating water, circularly processing acid and alkaline waste water, coarsening, circularly treating chromium-plating washing water, circularly treating chemically nickel-plating washing water, circularly treating copper-plating washing water and circularly treating nickel-plating washing water. Waste water in each procedure is directly used beside a tank edge in a closed cycle by an economical and effective means after being treated, no wastewater is discharged, and the cross contamination of different water qualities among the procedures is avoided. The method is a technological innovation for realizing zero emission of plating waste water and plating cleaner production.

The invention discloses a treatment method of chemical nickel phosphor plating waste liquid, and relates to the comprehensive recovery and utilization field of chemical plating waste liquid. Under the condition of not adding any catalysts such as Pt salt and the like, and without external heating, the method utilizes sodium hydroxide dissolution, heat produced in the process of neutralization reaction and local high temperatures between liquid-solid interfaces, high pH value, and NaOH, and is induced by crystal nucleus provided by Ni2, therefore, the waste liquid is impelled to carry out self decomposition, and Ni-P alloy solid particles are generated. Under the action of the self decomposition of the Ni-P alloy solid particles, the waster liquid is decomposed quickly and completely, nickel is transformed into Ni-P alloy and then settled and separated out. More than 96 percent of nitrogen is transformed into ammonia, and phosphor, residual nitrogen, and majorities of organic acid are transformed into magnesium salt and calcium salt compound fertilizer. After the recycled nickel and phosphor resources are subjected to comprehensive recovery treatment, the nickel and the nitrogen contained in the waste liquid reach the national first-level discharge standard, and the phosphor and COD reach the national third-level discharge standard.

The invention belongs to the technical field of treatment of waste water, and particularly relates to a method for reduction of sulfate into sulfide and treatment of metal waste water by sulfate reducing bacteria growing up with electric current. The sulfate reducing bacteria provided by the invention is a mixing bacteria group, which comprises Desulfobulbus propinonicus, geobacter sulfurreducens. Under the condition of lacking organic carbon resource, an electrode is used as the only electronic donator for growing, sulfate is reduced into sulfide via bioelectrical chemistry, and the sulfide is applied to the treatment of metal waste water. According to the method provided by the invention, the defect that organic carbon resource is needed to be used as the electronic donator is overcome,the operation is simple, the secondary pollution is zero, the cost is low, and is particularly suitable for the treatment on organic carbon metal waste water of mine waste water, metal smelting wastewater, electric plating waste water and the like.

The invention relates to a method of recovering gold and copper heavy metal from the sludge generated from plating waste water by dealing with circuit board and of producing waste water treating-agent. The method is provided with steps of: absorbing the gold in solution by active carbon; deoxidizing gold by zineum; substituting the scrap iron by the copper in filtrate; further treating the residual irons solution to get a good waste water treating-agent. The pureness of the achieved gold and copper is above 98%. The waste water treating-agent is used for treating printing and dyeing waste water and has an obvious decolorizing effects and a high COD removal rate. The invention invests few, takes effects quickly, wins more, handles simply, is with a percent products recovery and a good quality.

The invention relates to the technical field of peripheral equipment of a punch, in particular to a deflection type servo feeding line, which comprises an uncoiler, a transitional rack and a deflection type feeding host machine, wherein the deflection type feeding host machine comprises a main frame and an integral leveling and sizing host machine arranged on the main frame. A clamping feeding unit, a leveling unit and a sizing unit in the deflection type feeding host machine of the whole servo feeding line are integrated so as to reduce the occupied space, and the leveling and sizing operations of a plate are closely approached so as to improve the sizing accuracy and the acceptability of punched products. More significantly, the integral leveling and sizing host machine is integrally arranged on the deflectable deflection main frame, and the integral leveling and sizing host machine can be accurately controlled to deflect along the width direction of the plate according to the need so as to make the plate move in the width direction for a punch to stamp in the corresponding width direction, so the production efficiency is improved, the plate can be fully utilized, and plate waste is minimized.

The invention relates to a cement clinker production method by utilization of artificial slabstone waste. The artificial slabstone waste is used as raw materials, cement is fired through a drying method preheater, the artificial slabstone waste can be thoroughly processed, part of natural raw materials can be replaced, and energy-saving and emission-reducing purposes are achieved. The method includes the following steps: mixing artificial stone calcium aluminum plate waste, artificial quartz stone waste and steel slag according to a mixing ratio, drying, grinding, screening, and evenly mixing the mixed materials to obtain cement raw materials, and calcining the cement raw materials to obtain cement clinker by adopting a calcining process of an existing novel drying method kiln which is provided with a precalcining kiln. Cooled cement clinker is grinded through a mill, and the cement clinker meeting production requirements is obtained.

The invention relates to a method for producing autoclaved bricks from artificial stone plate wastes. The method comprises the steps of (1) taking the artificial stone calcium-aluminum plate wastes and quartz stone plates wastes out, mixing, sieving, and carrying out press filtering to obtain artificial stone wastes powder, wherein the water content of the wastes is controlled at 10% +/- 5% by press filtering; (2) weighing the following materials in parts by weight: 40-60 parts of artificial stone wastes powder, 10-20 parts of cement, 1-5 parts of activator, 5-10 parts of fly ash, 0.015- 0.03 part of an efficient water reducer, putting the above materials into a mixer, mixing, adding 5-11 parts of water, stirring uniformly to obtain a mixed material; (3) loading the mixed material into the mold, vibrating, molding under 20-30Mpa pressure, carrying out autoclave molding in an autoclave, curing, stripping and homogenizing. The strength and toughness of the autoclaved brick is improved by producing wall materials from industrial wastes according to the invention and double effects of environmental pollution and comprehensive and highly efficient utilization of wastes are reached.

The invention discloses a resource treatment process for nickel-contained plating waste water, which belongs to the waste water treatment of a plating industry. The recycling process is divided into three steps: electro-deposition, adsorption and secondary electro-deposition, wherein the plating waste liquid is conveyed to an electro-deposition trough to be electro-deposited after the pH value is adjusted to a given number, after nickel content in the solution is reduced to a designated value, the solution is conveyed to an adsorption column to be adsorbed, the nickel content of the plating waste water after being treated is less than 1ppm, and partial waste water is returned to a plating procedure to use. The nickel in the plating waste liquid is recycled in a metal state. After the adsorption column is saturated, backwashing and reproduction are carried out, and secondary electro-deposition is undertaken on the backwashed solution to obtain the metal nickel.

The invention discloses a method for recycling a chemical copper plating waste liquid. The method comprises the following steps: (1) collecting the chemical copper plating waste liquid, and adjustingthe pH value of the waste liquid to 9.5-11; (2) performing oxidation complex-breaking treatment on the treated chemical copper plating waste liquid obtained in step (1), performing an oxidation complex-breaking reaction to change dissolved complexed copper into a copper-containing deposit, and keeping the pH value of the waste liquid in the oxidation complex-breaking reaction not less than 9; (3)performing solid-liquid separation to obtain the copper-containing deposit and a filtrate; and (4) adding isopyknic clear water to the copper-containing deposit, uniformly dispersing the deposit, adding an enriching agent, performing a reaction to obtain a copper-rich deposit, separating the copper-rich deposit and the clear water, and drying the copper-rich deposit. The highly pure copper depositis obtained through a simple enriching and purifying technology while performing the oxidation complex-breaking treatment on the dissolved complexed copper in the chemical copper plating waste liquid, so the method realizes recycling of precious metal copper and has significant environmental and economic benefits.

The invention discloses a plating waste gas treatment device used for evaporation concentration of a solid-containing aqueous solution in the industries of plating, chemistry, chemical engineering and the like. The device comprises an air suction cover arranged on a plating tank, wherein the air suction cover is communicated with a spray compartment through an air suction pipe; the spray compartment is communicated with a gas-liquid separation tower, and a plurality of spray heads are arranged in the spray compartment; the bottom of the gas-liquid separation tower is provided with a reclaiming liquid collecting compartment communicated with the spray compartment; a collision cap is arranged above the reclaiming liquid collecting compartment; a filler layer is arranged above the collision cap; the upper part of the filler layer is connected with an air outlet pipe; the air outlet pipe is connected with a fan, and the bottom of the reclaiming liquid collecting compartment is connected with a reflux pipe; the reflux pipe is communicated with a temperature controlled evaporation tank; and the spray heads are communicated with a temperature controlled evaporation device through circulating cooling pumps. The plating waste gas treatment device has the advantages of small volume, convenience for maintenance, remarkable energy conservation, controllable concentration and long service life.

The invention provides a nucleic acid isolation machine which comprises a machine body, a magnetic rack, a magnetic rod, a magnetic rod sleeve rack, a magnetic sleeve, a droplet baffle plate, a deep hole plate, a positioning base, a rotating disc and a control panel, wherein a guide track is arranged in the vertical direction of the machine body; the guide track comprises a first guide track and asecond guide track; and the first guide track and the second guide track are arranged in parallel on the machine body. Speeds of oscillation, mixing and magnetic sucking are adjusted in a stepless manner through the control panel, the magnetic rack and the magnetic rod sleeve rack are of double modes, and the deep hole plate is a common deep hole plate. By adopting the nucleic acid isolation machine, the problems in the prior art that a nucleic acid isolation machine is frequent in calibration, single in working mode and great in deep hole plate waste, the position of the magnetic rod is deviated, and the speeds of oscillation, uniform mixing and magnetic sucking cannot be precisely controlled, are solved.

The present invention discloses a three-stage biological comprehensive treatment method for printed circuit board (PCB) waste water. The method comprises a three-stage biological treatment process, and is characterized in that: the method is performed by the following steps that: (1) PCB mixing waste water is poured into a reaction tank 1, the pH value is adjusted to 2.7-3.2 with sulfuric acid, ferrous sulfate is added, the waste water is transferred to a flocculation tank 1, the pH value is adjusted to more than 7 by an alkali solution, a flocculating agent is added to carry out precipitation, and the waste water and the resulting precipitation are transferred into a precipitation tank; (2) the waste water is poured into a neutralization tank, a nitrogen source is added, the pH value is adjusted to 6.8-7.2, the resulting waste water enters an aeration tank to carry out biodegradation, and flows through a precipitation tank 2; (3) the waste water is poured into a reaction tank 2, the pH value is adjusted to 8.8-9.2, the flocculating agent is added, the waste water is introduced to a precipitation tank 3, and then is discharged. With the present invention, the grinding plate waste water, the printing ink waste water, the copper-containing waste water and the electroplating waste water can be simultaneously treated, the treatment efficiency of the organic compound with high complex copper is high, and the cost is low.

The invention provides an aluminum alloy ingot. The aluminum alloy ingot comprises an aluminum ingot and aluminum plate waste, wherein the mass ratio of the aluminum ingot to the aluminum plate wasteis 4:1-10:1. The invention further provides a production technology of the aluminum alloy ingot. The production technology comprises the following steps that (1) raw materials are smelted, wherein thealuminum ingot and the aluminum plate waste are placed into a smelting furnace for smelting; (2) primary refining and slagging-off are carried out in an upper furnace body; (3) the mixture is put into a lower furnace body for refining and slagging-off; (4) sampling is performed, the content of Si and Mg in molten aluminum is adjusted by adding magnesium ingots and silicon ingots, and step (3) andstep (4) are repeated until the content of each chemical element in the molten aluminum reaches a target value; (5) gas and slag are removed, and the molten aluminum is purified; (6) the molten aluminum is cast into an aluminum bar, and Al-Ti5-B0.2 wires are added in the casting process; (7) high-temperature annealing is carried out; and (8), the head and tail portions of the aluminum bar are cutoff after being discharged from the furnace and cooled. According to the aluminum alloy ingot, the defects of coarse grains and feather-shaped crystals on the edge of the ingot are reduced.

The invention discloses a bast fiber plate waste recycling-based short fiber-reinforced composite material for automotive interiors. The bast fiber plate waste recycling-based short fiber-reinforced composite material is prepared from the following raw materials in parts by weight: 20-60 parts of crushed bast fiber plate materials, 100 parts of thermoplastic resin, 2-5 parts of an antioxidant, 1-3 parts of a light stabilizer, 2-5 parts of a lubricant and 0-10 parts of a flexibilizer. The bast fiber plate waste recycling-based short fiber-reinforced composite material has the beneficial effects that compared with the prior art, the bast fiber plate waste is recycled and changed into treasures; and the cost is reduced. The bast fiber plate is crushed and pelletized as a processing raw material for the short fiber-reinforced composite material, so that the problem that a bast fiber is difficult to feed is solved; the reprocessing technology of the bast fiber is reduced; the short fiber-reinforced composite material can be applied to the automotive interiors through an injection molding process; relatively complicated part injection molding manufacturing in the automobile industry can be further achieved; and the application situation that only the bast fiber plate is marketized in the field of the automotive interiors is also changed.

The invention discloses a method for producing a calcium silicate board from artificial stone plate wastes and quartz stone plate wastes. The method comprises the following steps: mixing the artificial stone aluminum plate wastes, the quartz stone wastes, cement, artificial or quartz stone particles, high-strength aluminum oxide fibers, a water-reducing and water-resisting agent and water, demoulding, and naturally curing to obtain the calcium silicate board. The method has the benefits that a large amount of industrial wastes are used, the environmental load and the manufacturing cost of wall body materials are reduced, a large amount of building materials are saved, the cultivated land is protected, and double effects of controlling the environmental pollution and comprehensively and efficiently utilizing the wastes are achieved.

The invention belongs to the technical field of waste gas purification equipment, and in particular relates to a plastic waste gas washing tower. The plastic waste gas washing tower comprises a tower body, a waste gas inlet, a waste gas outlet, more than one tower plate, a filler spraying device and observation holes, and is characterized in that overall corrugated fillers are respectively arranged on the tower plate; a swirl plate is arranged on the top tower plate of the tower body; an annular catch tray is arranged at the lower part of the swirl plate; a swirl plate waste liquid outlet is formed in the side surface of the tower body; a lower tower plate waste liquid outlet is formed in the center at the bottom of the tower body; and the spraying device consists of long spraying pipes with nozzles and short spraying pipes with nozzles, which are uniformly and alternately arranged in the circumferential direction of the tower body. The plastic waste gas washing tower has the advantages of high corrosion resistance, ageing resistance, reasonable structure, stable performance, large processing capacity, small system resistance, convenience for mounting, no maintenance, long service life and the like.

The invention discloses a treatment method of chemical nickle-plating waste water. The treatment method comprises the following steps: regulating pH of the chemical nickle-plating waste water to 4-6,adding sodium diethyldithioformate to precipitate nickle, adding a flocculating agent to gather precipitated particles, filtering and separating the precipitates; then regulating pH of supernatant liquor to 10-12, and adding hydrogen peroxide for oxidation; for waste water without containing ammonium ions, adding calcium chloride solution; for waste water containing ammonium ions, regulating pH to9-10, adding magnesium chloride solution, then regulating pH of the waste water to 10-12, and then adding the calcium chloride solution; then adding the flocculating agent, separating and filtering to finish treatment. The treatment method of the chemical nickle-plating waste water disclosed by the invention has the beneficial effects that a treatment result meets the requirement of Table 3 in GB21900-2008 Standards for Emission of Electroplating Pollutants, the technical defect of difficult nickel recovery in the traditional one-step precipitation method is overcome, and the obtained nickelprecipitates can be recycled, so that the treatment method has better market application prospect.

The invention provides a method for precipitating gold from a cyanogen-containing gold-plated waste liquid. The method comprises the following steps of: (1) adding the cyanogen-containing gold-plated waste liquid containing 1-500mg/L gold ions into a container, adjusting the pH to 12 with 10wt% NaOH, adding NaClO to adjust the redox potential to 350mv, and reacting for 30 minutes; adding 10wt% H2SO4 to adjust the pH to 7.5, adding NaClO to adjust the redox potential to 650mv, and reacting for 30 minutes so that the cyanogen concentration in the waste liquid is damaged to less than 1mg/L; and (2) adding a gold precipitator into the cyanogen-containing gold-plated waste liquid with damaged cyanogen, stirring for reaction and filtering. The method provided by the invention can be used for protecting environment, precipitating gold and improving the utilization rate of resources.

The invention discloses an extruding roller level difference control device and method, belongs to the field of reel pipe manufacturing devices and aims to solve the technical problem that tail ends of plates are abandoned to cause plate waste. The extruding roller level difference control device structurally comprises a rack, multiple extruding rollers and multiple driving devices, wherein the extruding rollers comprise concave wheels and convex wheels which are arranged oppositely, a gap for plates to pass through is formed between each concave wheel and the corresponding convex wheel, the driving devices are connected with the extruding rollers and drive the concave wheels and the convex wheels to synchronously rotate in different-direction mode, the multiple extruding rollers are arranged on the rack and are sequentially arranged in the conveying direction of the plates to form a forming mechanism, each driving device is connected with the corresponding concave wheel and the corresponding convex wheel and can drive the corresponding concave wheel and the corresponding convex wheel to synchronously rotate in different-direction mode, the rotation speeds of the multiple extruding rollers are progressively increased in the conveying direction of the plates, and each driving device is connected to a controller. By adopting the method, plates are coiled through the extruding roller level difference control device.

The invention discloses a Ni-P alloy nano-powder lubricant additive prepared from nickel and phosphorus recycled from electroless nickel plating waste liquid, and a using method thereof in different friction occasions, wherein Ni-P powder is subjected to in-situ dispersion and recovered from electroless nickel plating waste liquid, dispersed again and then prepared into the lubricant additive through certain steps, together with metal chemical friction modifiers, detergent-dispersant, oxygen corrosion-resistant agents, auxiliary performance regulator, stabilizer and base oil. The lubricant additive has the advantages of good suspension stability, capability of greatly reducing equipment friction and wear, greatly reducing the frequency of equipment maintenance and parts replacement and prolonging equipment lifespan and overhaul time limit, as well as good effect of saving energy and protecting environment. The lubricant additive can be widely used in gasoline/diesel internal combustion engines, general fluid machinery, mechanical chemical sealing pieces, transmission gearboxes and other occasions, can realize the recycling of nickel and phosphorus in the electroless nickel plating waste liquid with high added value in order to change pollutants into useful things, and realizes the coordination and unification of economic, environmental and social benefits.

The invention provides a low-noise and easy-maintenance honeycomb plate waste crushing decomposer. The low-noise and easy-maintenance honeycomb plate waste crushing decomposer comprises a crusher body, a feed port and the like, and is characterized by further comprising a wear resisting layer, a silent protective cover, a silent box, a dust sucking device and a dust collecting box; the wear resisting layer is mounted on the inner wall of the crusher body; the external of the crusher body is coated with the silent protective cover; and the feed port is formed in one side of the crusher body. The low-noise and easy-maintenance honeycomb plate waste crushing decomposer is provided with the silent protective cover; on the one hand, the difficult cleaning of the production area caused by waste splashing and falling in the crushing decomposition process can be prevented; and on the other hand, the noise can be effectively lowered; the wear resisting layer is arranged in the crusher body to effectively prolong the service life and improve the practicability and the safety; and the dust sucking device is provided for absorbing floating dust generated in the crushing decomposition process and discharging into the dust collecting box, so that the influence on the working environment by the floating dust generated in the production process can be reduced, the environmental protecting performance is improved, and the equipment is easy to maintain.

The invention relates to an electric chromium plating waste gas purification system and a method and belongs to the technical field of electroplating. The system comprises a condensation cover (4) mounted above an electroplating unit (1) via a coupling flange (7) and forming a sealed channel, wherein the condensation cover (4) is internally equipped with a plurality of layers of foam metals (8) and a condensation tube (9); the foam metals are distributed in a layered manner sequentially according to a gap size; a gap diameter of a lower layer is greater than that of an upper layer; the condensation tube (9) is arranged in the foam metals (8); and the system further comprises a gas collecting system connected with the upper end of the condensation cover (4). The system can effectively purify and recover volatile chromic acid generated in an electric chromium plating process and discharges waste gas containing electric chromium plating acid after purification.

The invention discloses a method to reclaim silver from solution with silver ion, which comprises the following steps: adopting static absorption method; using micrometer or nanometer particle of poly diamino corbit as sorbent; adding poly diamino corbit into silver ion solution with initial concentration at 1-100mmol/L; stirring; absorbing 30min-24h; filtering. This invention possesses cheap cost, convenient operation and high adsorption efficiency, which can be used to image fusing waste liquid, plating waste liquid, chemical analysis waste liquid and test waste liquid.

A whole membrane treatment method of electroplating chrome plating waste water comprises the following treatment steps of: 1) rinsing: rinsing electroplating chromeplated parts with clear water in a rinsing tank after being electroplated through a chromeplating electrophoresis liquid tank to obtain rinsed liquid; (2) sand filtration: treating the rinsed liquid in the rinsing tank by a sand filtration tank to remove suspension, colloid, flocculate, mud sand, rust, and the like to obtain sand-filtered liquid; (3) hollow fiber ultrafiltration membrane treatment; (4) reverse osmosis treatment: performing reverse osmosis concentration treatment of the clear liquid by a reverse osmosis device; (5) cyclic operation of the above steps. The method has the advantages that the problem of secondary pollution caused by traditional chemical precipitation methods is solved; the problem of membrane oxidation and degradation due to hexavalent chromium ions is solved; the method meets the new discharge national standard; the whole process flow operation is simple and convenient; waste water in the whole process is in a recycle state, and is not discharged to the outside at all; and the whole process reaches the standard of zero discharge.

The invention discloses a method for preparing an LFT-D (long fiber reinforced thermoplastic composite) dung draining plate by utilizing production leftovers. The method comprises the steps of crushing the recovered LFT-D production leftovers into particles in a size of 5mm to 8mm, adding a new material according to a weight ratio of (1:3) to (1:4), adding glass fibers according to a weight ratio of the glass fibers to wastes of (1:1.8) to (1:2.1), finally uniformly mixing and heating, and extruding the mixture to a dung draining plate mold to obtain a product. Various mechanical properties of each product processed in the method can reach relevant inspection standards of the dung draining plate, and the recycling of raw materials of the LFT-D dung draining plate wastes is realized, and an important significance on environmental protection can be realized.