33results about How to "Facilitation of the recycling process" patented technology

Disclosed is a method of preparing a micro-structured powder for bonded magnets having high coercivity, which is advantageous in terms of low preparation costs by recycling magnet scraps, simplified mass production, minimal environmental contamination by such a recycling process, and the preparation of stable anisotropic powders having high coercivity. Further, a magnet powder prepared by the above method is provided. The current method is characterized in that R—Fe—B type anisotropic sintered magnets or scraps thereof are crushed to prepare 50-500 μm sized magnet powders, which are then mixed with 1-10 wt % of rare earth fluoride (RF₃) powders and thermally treated at high temperatures (500-1100° C.) in a vacuum or an inert gas, to cause the change of matrix-near surface and grain boundary of the powders. Thus obtained powders include a matrix phase having R₂Fe₁₄B crystal structure, a R-rich grain boundary phase containing rare earth fluoride, and other phases, in which the matrix phase has an average grain size of 1-20 μm, and the powders have an average size of 50-500 μm with superior magnetic characteristics of (BH)max≧20 MGOe and iHc≧5 kOe.

The invention relates to a green synthetic method of preparing o-phenylenediamine by reducing o-nitroaniline, wherein the method includes following steps: with o-nitroaniline as a substrate, dissolving the o-nitroaniline in water or in a mixed liquid composed of water and a co-solvent, and adding a supported catalyst under a carbon monoxide atmosphere, wherein the supported catalyst includes a supporter and a catalyst body supported thereon, and performing a reaction to prepare the o-phenylenediamine at 30-150 DEG C. In the method, the supported catalyst is used for preparing the o-phenylenediamine through reduction. The catalyst is high in selectivity and reaction yield and is mild in reaction condition. The method is environment-friendly in production system and less in treatment load of waste water, waste gas and solid waste, achieves green and clean production of the o-phenylenediamine, and is suitable for large-scale popularization.

The invention discloses an integrated TEG (triethylene glycol) dehydration integrated process device and method. The device comprises a feed gas filtration separator, a TEG (triethylene glycol) absorption tower and a dry gas/barren solution heat exchanger; a liquid phase outlet at the bottom of the TEG (triethylene glycol) absorption tower is connected to a TEG (triethylene glycol) circulating pump; a pregnant solution outlet of the TEG (triethylene glycol) circulating pump is sequentially connected to a pregnant solution heat exchange coil, a flash tank, a TEG (triethylene glycol) solution filter and a barren/pregnant solution heat exchanger, a barren solution buffer tank and a pregnant solution rectifying column; a flashing steam outlet of the flash tank is connected to a TEG (triethylene glycol) fire tube type reboiler; the pregnant solution rectifying column, the fire tube type reboiler, a barren solution rectifying column and the barren solution buffer tank are connected together;and an outlet of the barren solution buffer tank, the barren/pregnant solution heat exchanger, the TEG (triethylene glycol) circulating pump, a dry gas/barren solution heat exchanger shell pass and aliquid phase inlet at the tower top of the TEG (triethylene glycol) absorption tower are sequentially connected. According to the integrated TEG (triethylene glycol) dehydration integrated process device and method, the process is simpler, highly integrated design is better facilitated, moving is easy, in addition, energy conservation and emission reduction are realized to a great extent, the operation cost is lowered, and the one-time investment is reduced.

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 discloses an intelligent chip removal type machine tool, comprising a machine tool body. A sliding rail is fixedly connected to the middle of the inner side of the machine tool body; a chip removal mechanism is fixedly connected to the inner side of the machine tool body; and a chip scraping mechanism is fixedly connected to the lower end of the sliding rail, is arranged at the upperend of the sliding rail, and comprises a bearing shell. Cutting chips falling onto a receiving hopper, used waste liquid formed by fusing cooling liquid and lubricating liquid and the like are scraped above a cleaning mechanism through the chip scraping mechanism; the waste liquid and the cutting chips are separated when falling into a screening mechanism; the waste liquid falls into a waste liquid barrel through a lower passing pipe; and the waste chips are smashed into powder through a crusher and then fall into a chip storage mechanism after being cleaned through the cleaning mechanism, sothat the chips generated by the machine tool can be collected and treated, the chips are directly machined into clean metal powder, and the subsequent recovery procedure is facilitated.

The invention discloses a ceramic tail powder material recycling treatment system. A sieving station, a humidifying station, an extruding station, a crushing and pelletizing station and a screening station are sequentially arranged along a tail powder material recycling treatment path, wherein tail powder materials are fed into the sieving station to be subjected to sieving and iron removing treatment so that sieved powder materials can be obtained; the humidifying station is provided with a humidifying device used for performing quantitative humidifying on the sieved powder materials, and therefore humidified powder materials with a preset water content are formed; the extruding station is provided with an extruding mechanism used for extruding the humidified powder materials to form blocky materials with proper hardness; the crushing and pelletizing station is provided with a crushing device used for performing crushing treatment on the blocky materials to form particle powder materials; and the screening station is provided with a device used for separating finished powder materials meeting the particle size requirement in the particle powder materials. The tail powder materialrecycling procedure is effectively improved, the production cost is greatly lowered, the finished powder materials meet the discharging requirement conforming to powder material preparation, and the characteristics that reentrainment of dust is avoided, cost is low, and direst inputting for production is achieved are achieved.

The invention relates to the technical field of PVC pipe recovery, in particular to PVC pipe recovery equipment. The PVC pipe recovery equipment comprises four supporting legs, and further comprises acontroller, a crushing mechanism and a drying mechanism; the drying mechanism is arranged at the tops of the four supporting legs and used for drying crushed waste PVC pipe fragments; the drying mechanism comprises a drying box, a filtering basket, an air blowing assembly and two traction assemblies; the crushing mechanism comprises a crushing box, an extrusion assembly and a crushing assembly; the controller is fixedly arranged on the outer wall of the crushing box; the crushing box is fixedly arranged at the top of a material receiving opening; the extrusion assembly is arranged at the topof the inner side of the crushing box; the crushing assembly is arranged at the bottom of the inner side of the crushing box; and the air blowing assembly and the extrusion assembly are electrically connected with the controller. According to the PVC pipe recovery equipment, PVC pipes can be prevented from slipping or being clamped, thorough crushing is achieved, meanwhile, the drying speed is higher, drying is more thorough, and the next recovery procedure can be carried out conveniently.

The invention relates to a self-unloading type residual film recycling machine for straw smashing and returning to field and lifting chain bundling and a using method. The residual film recycling machine comprises a rack, a straw smashing and returning-to-field device and a residual film picking and conveying device, wherein the straw smashing and returning-to-field device and the residual film picking and conveying device are arranged on the rack, a residual film bundling self-unloading device is arranged behind the residual film picking and conveying device, the straw smashing and returning-to-field device comprises a smashing shell, the front end of the smashing shell is connected with the machine tool through a three-point suspension mechanism, a stubble cleaning mechanism is arranged on the lower portion in the smashing shell, and a horizontal conveying mechanism is arranged above the stubble cleaning mechanism; the residual film picking and conveying device comprises a film lifting shovel and an inclined conveying mechanism, and the film lifting shovel is used for separating mulching films from the ground, so that the mulching films are conveyed upwards under the action of the inclined conveying mechanism; and the residual film bundling self-unloading device comprises a film collecting box with a top opening, a film collecting box connecting rod and a hydraulic cylinder, the film collecting box is arranged behind the residual film picking and conveying device through the film collecting box connecting rod, the hydraulic cylinder is arranged outside the film collecting box, one end of the hydraulic cylinder is connected with the film collecting box, and the other end of the hydraulic cylinder is connected with the inclined conveying mechanism.

The invention discloses an automobile engine oil recycling device and method. The automobile engine recycling device comprises a recycling barrel. The top of the recycling barrel is provided with an oil inlet, and the oil inlet is provided with an upper cover. The upper portion of the recycling barrel is provided with a partition layer and a liquid level alarming device. The liquid level alarmingdevice is linked with the upper cover. The partition layer is located under the oil inlet. A slag discharging groove is formed in the bottom of the partition layer, and an oil outlet is formed in thelower portion of the recycling barrel. An electromagnetic valve and an electronic flow meter which are connected with a circuit module are assembled at the position of the oil outlet, and a power source is used for supplying power to the electromagnetic valve, the electronic flow meter and the circuit module. The circuit module comprises a communication module conducting bidirectional signal transmission with a cloud server. A two-dimensional code is arranged on the recycling barrel for an APP end to scan and recognize, and the cloud server serves as a medium between the APP end and the communication module for bidirectional information transmission. Engine oil only enters the device but not exits from the device in the engine oil recycling process, people must hold an official account forscanning the two-dimensional code, the cloud server is used for starting the engine oil recycling device for fixed-point engine oil recycling, it is ensured that the engine oil is not secondarily used or discharged in a mess, and the automobile repairing market environment is purified.

A method for producing clean black mass, anode or cathode for subsequent recycling is provided, the method comprising subjecting an intact battery to a shredding process to produce an aggregate, wherein the smallest particle generated is between 2.5 percent and 40 percent of original battery size. Also provided is a shredder for minimizing aggregation of whole batteries, the shredder comprising a shaft defining a longitudinal axis and a latitudinal axis; and a plurality of teeth disposed on said knives which fit on said shaft at an angle to the latitudinal axis selected from 15 degrees and 45 degrees, wherein the teeth have a first proximal end integrally molded to the shaft and a second free distal end.

The invention discloses a method for selectively purifying and removing copper and cadmium by automatic control of electric potential. The method for selectively purifying and removing copper and cadmium by automatic control of electric potential comprises the following steps of providing a solution containing copper ions and cadmium ions; adding zinc powder into the solution containing copper ions and cadmium ions for replacement to remove copper, and carrying out solid-liquid separation to obtain a liquid after replacement to remove copper and copper slag, wherein the adding amount of the zinc powder in a process of replacement to remove copper is controlled by means of electric potential at a reaction endpoint; and adding the zinc powder into the liquid after replacement to remove copper for liquid after replacement to remove cadmium, and carrying out solid-liquid separation to obtain a liquid after replacement to remove cadmium and sponge cadmium, wherein the adding amount of the zinc powder in a process of replacement to remove cadmium is controlled by means of electric potential at a reaction endpoint. The method achieves a purpose of removing impurities precisely by judgingthe replacement reaction endpoints of copper and cadmium impurities in the solution in an electric potential measuring mode and extracting copper and cadmium in the solution in steps, so that a cadmium recovery treatment step is optimized, the unit consumption and the production cost of the zinc powder are reduced, and the production control level is improved and the economical benefit is increased.

A system for recycling planar objects including compressed mineral fiber material includes: a conveyor arranged to covey the planar objects through a number of stations at least including a thickness measurement station and a sound measurement station. The sound measurement station includes a sound reflecting surface arranged to back a first major surface of a planar object, a sound emitter arranged to emit sound towards the sound reflecting surface, a sound receiver arranged to receive sound reflected from the sound reflecting surface, and a converter arranged to determine a property related to sound absorption. A sorting station is arranged to sort the planar objects based on determined properties in to a plurality of fractions.

A method of recycling building materials is described, including the steps of introducing the building material into a cement kiln or a boiler, and combusting a combustible portion of the building material as a fuel within the kiln or boiler. The noncombustible portion of the building material is incorporated into a clinker material within the kiln or used to reduce emissions form the boiler.

The invention discloses a classifying and recycling device for waste milk tea cups. The device comprises a classifying box and a classifying cavity formed in the classifying box, an opening is formedin the upper portion of the classifying cavity, air cylinders in bilateral symmetry are arranged in the classifying cavity, piston rods are arranged on the opposite sides of the left air cylinder andthe right air cylinder, and extrusion plates are fixedly connected to the opposite ends of the left piston rod and the right piston rod; and an electric guide rail is arranged on the left wall of theclassifying cavity, a sliding block is arranged in the electric guide rail, a rotatable rotating rod is arranged in the sliding block, a clamping device is fixed to the right side of the rotating rod.The waste milk tea cups are placed in the classifying and recycling device, so that straws, cup covers, cup bodies and solid and liquid in the cup bodies are separated; and the purpose of classifiedcollection and storage can be achieved, the subsequent garbage treatment amount is reduced, the garbage recycling process is convenient, and environmental pollution is reduced.