185 results about "Waste generation" patented technology

According to the industrial solid waste multi-target collaborative management method and system based on the digital twinborn and hybrid optimization algorithm, industrial solid waste data are collected in real time through an Internet of Things sensor, a dynamic digital twinborn model is constructed to simulate a physical process, and the problems of data dispersion and lag in a traditional method are solved; establishing a multi-objective optimization function by combining three major objectives of economy, environment and society, and generating a Pareto optimal strategy set by adopting an improved NSGA-II and particle swarm optimization (PSO) hybrid algorithm; the method combines historical and real-time data through a twin model, employs an LSTM algorithm to synchronously predict the type and quantity of solid wastes, the equipment operation state and the environment change, achieves the dynamic simulation and prediction of the whole process of solid waste generation, transportation and processing, remarkably improves the data integration efficiency, provides precise real-time support for decision making, and improves the real-time performance of the system. The treatment cost is reduced, the carbon emission is reduced, and the public satisfaction is improved; the strategy response time is shortened through dynamic model correction, an intelligent solution is provided for industrial solid waste management, and the function of multi-dimensional collaborative optimization of industrial solid waste management is achieved.

The invention discloses a biological environment-friendly clothing material with a self-cleaning function and a preparation method of the biological environment-friendly clothing material. According to the invention, the environmental friendliness is obviously improved, and natural components which can be completely biodegraded are adopted and can be quickly decomposed in the natural environment, so that the micro-plastic pollution is reduced; the self-cleaning function is enhanced, and through the synergistic effect of the bionic hydrophobic surface and photocatalytic decomposition, automatic falling and decomposition of stains are achieved; the durability is enhanced, a dynamic self-repairing network can automatically repair daily wear, the service life is prolonged, and the bio-based raw materials are natural, skin-friendly and excellent in air permeability. The supercritical fluid processing and microwave shaping technology replaces a high-energy-consumption process; emission of toxic substances is eliminated, and organic solvents and fluorine-containing compounds are forbidden in the whole process; raw material loss is reduced, and the using amount of functional materials is reduced through an accurate structure regulation and control technology; the maintenance cost is simplified, and the washing frequency and the use of chemical cleaning agents are reduced due to the self-cleaning characteristic; waste is compressed, and resource utilization of by-products is achieved through a closed-loop production system.

The invention discloses a cleaning method, a cleaning system and application of a precision filter. The cleaning method comprises the following steps: roughly cleaning the emptied precision filter by adopting an organic solvent; washing the roughly washed precision filter with water to elute the organic solvent; after washing, draining washing water in the precision filter to enable the precision filter to be filled with water, and heating to perform deep hydrolysis treatment on gel impurities attached in the precision filter; after the deep hydrolysis treatment is completed, completely discharging decomposition liquid in the precision filter; and washing with water and drying to complete cleaning of the precision filter. According to the cleaning method, deep decomposition treatment is conducted with water to replace an existing alkali washing procedure, efficient decomposition of GPAN can be achieved, the cleaning effect is good, the solid waste generation amount is small, and corrosivity is small. The invention further improves the process of deep decomposition treatment with water, provides a backflow self-circulation deep decomposition treatment process and a forced circulation deep decomposition treatment process, and further improves the cleaning effect.

The present invention relates to the technical field of gas treatment, and particularly relates to a multi-stage adsorption recovery method for organic gases by means of biological nano composite activated carbon. The method comprises the following steps: preparing an activated carbon composite, i.e. nFeOOH@AC, of nano-hydroxyl iron modified corn husk and bamboo shoot skin by using an ethanol dispersion method, which composite can be used for the adsorption of organic gases; and introducing a mixed gas containing a target organic matter into a system comprising at least two biological nano composite activated carbon adsorbers, which are connected in series, at a preset flow rate Q (m3 / h), wherein each adsorber is filled with the biological nano composite activated carbon with a density ρ (kg / m3), the specific surface area thereof is S (m2 / g), and the average pore diameter is d (nm), thereby achieving multi-stage adsorption. The beneficial effects comprise: utilizing the high specific surface area and excellent adsorption performance of the biological nano composite activated carbon, and combining the multi-stage adsorption system, such that efficient recovery of organic gases can be achieved, thereby significantly improving the recovery efficiency. Compared with a traditional treatment method, this method is low in energy consumption, extra fuel is not needed, and the adsorption material can be recycled, thereby reducing resource consumption and waste generation, and conforming to the environmentally friendly development concept.

The invention discloses an automatic blanking and receiving structure and device. The automatic blanking and receiving structure comprises a supporting base body, an adsorption assembly, a feeding mechanism, a forming mechanism and a bearing mechanism. The adsorption assembly is movably connected to the supporting base body and used for adsorbing the plate and transferring the plate to the feeding mechanism. The feeding mechanism is matched with the supporting base body so as to drive the plate to move towards the forming mechanism. The forming mechanism is used for punching and blanking the plate material to form a finished product material sheet; the bearing mechanism is arranged on the discharging side of the forming mechanism and used for bearing finished product material pieces. The arrangement of finished material sheets can be optimized, waste materials are reduced, the material utilization rate is improved, and the manufacturing cost is reduced.

A process for producing hydrocarbons, usable as fuels, from industrial, agroforestry, urban waste and derivatives thereof, with high sustainability and lower CO2 emissions, given the same energy, with respect to the equivalent fuels of fossil origin, by means of a series of subsequent conversions in which first a syngas is produced,, obtained by gasification of waste with oxygen at high temperature, which is purified and adjusted in composition by modulating the H2 / CO ratio and then converted into methanol. The methanol obtained is in turn catalytically converted into light olefins by means of methanol -to- propylene (MTP) technology; such olefins are catalytically converted by oligomerization in order to obtain a hydrocarbon mixture comprising an ultra-light fraction (C1 and C2 ), a light fraction (C3 and C4), a fraction with a boiling range from 60 to 300°C, and a fraction with a boiling temperature above 300°C to be used for product separation and fractionation treatments.

The invention discloses a carbon emission accounting method for evaluating the whole household garbage classification process, and relates to the technical field of garbage classification carbon emission accounting. The system is realized based on a carbon emission accounting system, and specifically comprises a data acquisition module which is responsible for collecting original data related to garbage classification, including garbage generation amount, classification type, transportation distance and processing mode; the data processing module is used for cleaning, sorting and standardizing the collected data to ensure the accuracy and consistency of the data; and the carbon emission factor library comprises carbon emission factors in various garbage treatment processes. According to the invention, the detailed carbon emission factor library and the accounting module are combined, so that the carbon emission of each garbage treatment link can be accurately calculated, and managers are helped to understand main emission sources; by using optimization technologies such as particle swarm optimization, an optimal strategy for reducing carbon emission can be found under complex environmental conditions, and double benefits of economy and environmental protection are achieved.

The invention discloses a zero garbage control method and system based on an agriculture and cultivation double-circulation mode, and relates to the technical field of resource utilization, and the method comprises the steps: employing a chaos degree model to simulate an agriculture and cultivation double-circulation system; the dual-circulation system is a circulation system in which substances and energy are repeatedly utilized through a circulation process, each factor in the chaos degree model is a random variable which is mutually independent and synchronously distributed, and the chaos degree model is a random variable which is mutually independent and synchronously distributed under the condition that each factor is mutually independent and synchronously distributed. Representing a linear probability feature model of the circulation process through the time series data chaos degree of each factor; the factors comprise substances and energy; and optimizing the confusion degree model by taking zero garbage treatment as a target to obtain a control strategy of the dual-circulation system. The resource utilization rate can be increased, and the waste generation amount can be reduced.

The invention relates to a method for separating sodium and potassium from mixed sulfate containing sodium and potassium, which comprises the following steps: mixing the mixed sulfate containing sodium and potassium, a calcium-containing compound and water, dissolving and reacting to obtain potassium-removed mother liquor and double salt precipitate; performing first crystallization on the potassium-removed mother liquor to obtain a sodium sulfate product; mixing the double salt precipitate with water for elution treatment to obtain a potassium sulfate solution; performing secondary crystallization on the potassium sulfate solution to obtain a potassium sulfate product; according to the method, efficient separation of sodium and potassium in the mixed sulfate containing sodium and potassium is achieved, the purity of the obtained sodium sulfate product is preferably as high as 99.0% or above, the potassium content in potassium sulfate is preferably as high as 54.2 wt% or above based on the mass content of potassium oxide, the whole technological process is short, potassium chloride does not need to be added, the separation cost is low, waste gas, waste liquid and solid waste are not generated, and the method is suitable for industrial production. And green resource utilization of the mixed sulfate containing sodium and potassium is realized.

The invention belongs to the technical field of waste lithium battery recovery, and particularly relates to a method for selectively extracting lithium from a waste lithium iron phosphate positive electrode material based on interface polarization activation-complexing impurity inhibition, which comprises the following steps: 1) adding the waste lithium iron phosphate positive electrode material, an oxidizing agent and an activating agent into a solvent, stirring and leaching, and carrying out solid-liquid separation after leaching to obtain a leaching solution; and (2) adding inorganic salt into the leachate, enabling the inorganic salt and the activating agent in the step (S1) to generate precipitate, and carrying out solid-liquid separation to obtain a lithium-rich solution. Through the synergistic effect of the activating agent and the oxidizing agent, the lithium is deintercalated while the main body of the waste lithium iron phosphate positive electrode material is not dissolved basically, the leaching rate of the lithium can reach 99% or above, and the content of iron and phosphorus impurities in the lithium-rich solution is low. The method has the advantages of being high in lithium leaching rate, good in lithium selectivity, wide in leaching temperature application range, short in technological process, few in generated waste and low in cost, and particularly, the method also has the excellent selective lithium leaching effect at the low temperature.

The present invention relates to the technical field of backpack production, and in particular to a laser cutting device for backpack production, comprising an equipment seat, with limiting rollers slidingly arranged on both sides of the equipment seat, a placing rack connected and fixedly arranged on one side of the equipment seat, a rotating seat rotatably arranged on the equipment seat, a blanking mechanism rotatably arranged on the rotating seat, an air guide seat connected and fixedly arranged on the equipment seat, a mounting mechanism connected and fixedly arranged inside the air guide seat, a cutting template installed on the mounting mechanism, and a cutting mechanism rotatably arranged inside the air guide seat. When cutting fabric for producing backpacks, a hydraulic rod is used to drive the cutting template to press on the fabric, and the fabric is covered by the cutting template, which can ensure the accuracy and rationality of the cutting path, avoid unnecessary fabric waste, significantly improve cutting accuracy, reduce waste generation, improve production efficiency, adapt to complex pattern cutting, protect fabric, and improve product quality.

This invention discloses a high-efficiency integrated treatment system for produced water from oilfields, comprising an oily wastewater settling filter and an oily wastewater filter coalescer connected in sequence. The oily wastewater settling filter includes a filter tank, a settling separation mechanism, and a paper tape filter mechanism. The settling separation mechanism is located in the upper part of the filter tank, and the paper tape filter mechanism is installed on the filter tank. The oily wastewater filter coalescer includes a shell and a filter coalescing cartridge assembly. The shell includes a cartridge installation section, an inlet distribution section, and a flotation separation section. The technical solution of this invention uses the oily wastewater settling filter as a pre-treatment device and the oily wastewater filter coalescer as a post-treatment device. The organic combination of the two improves the system's effectiveness (good effluent quality indicators and stable performance) while also enhancing its economy (low construction cost and low operating cost) and environmental performance (low energy consumption and low generation of secondary oily waste).

The invention belongs to the technical field of adsorption desulfurizing agents, and particularly provides a composite desulfurizing agent for removing SO2, NOX and HCl and a preparation method thereof, and the composite desulfurizing agent comprises the following components in parts by weight: 25-35 parts of a desulfurizing agent, 30-50 parts of a denitrifying agent and 10-15 parts of modified activated carbon. The composite desulfurizer can efficiently remove SO2, NOX and HCl at the same time, the problem that a traditional single desulfurizer can only aim at one pollutant is effectively solved, the desulfurization efficiency is remarkably improved, and the increasingly strict environmental protection requirement is met; meanwhile, the composite desulfurizer is good in reproducibility, the desulfurization cost is reduced, the generation of wastes is reduced, the requirements of environmental protection and sustainable development are met, and the composite desulfurizer can be used in a high-temperature environment and is suitable for being used in a waste incineration plant.

The invention provides a recycling system device for sand blasting waste of a sand blasting machine and a working method and application of the recycling system device. The sand blasting waste comprises waste sand and waste water, and the recycling system device comprises a sand blasting machine, a waste collecting device and a multi-stage dust collecting, filtering and capturing device which are sequentially connected in the moving direction of the waste. A sand collecting opening in one side of the multi-stage dust collecting, filtering and capturing device is used for outputting waste sand liquid below 600 meshes and recycling the waste sand liquid into the sand blasting machine, and a waste opening in the other side of the multi-stage dust collecting, filtering and capturing device is used for outputting residual waste; the recycling system device further comprises a waste water treatment device, and the waste water treatment device is connected with a waste material opening of the multi-stage dust collecting, filtering and capturing device and used for recycling waste water into the sand blasting machine. Sand and water of the sand blasting machine can be recycled, stable operation of the recycling process can be ensured, resource consumption and waste generation are reduced, the working efficiency and economic benefits are improved, and safe treatment of waste and environmental protection are ensured.

The invention discloses a movable building construction waste treatment device which comprises a frame, rollers are rotatably mounted on the lower surface of the frame, a brake mechanism is rotatably mounted on one side of the frame, a first U-shaped frame and a second U-shaped frame are fixedly mounted on the two sides of the frame respectively, and a dust collection mechanism is fixedly mounted in the first U-shaped frame; the dust collection end of the dust collection mechanism is installed on the upper surface of the crushing bin, and a feeding mechanism is rotationally installed in the second U-shaped frame. Through the design of the dust collection mechanism and the feeding mechanism, the dust collection mechanism pushes or pulls the vehicle frame to a construction waste accumulation position, so that the equipment can quickly reach a waste generation place, the carrying distance of the construction waste can be reduced through the flexible moving mode, the treatment efficiency is improved, and through the folding design of the feeding mechanism, the construction waste can be conveniently and rapidly transported. In the construction waste treatment process at different places, the construction waste treatment device can be quickly converted from a transportation state to a working state through the folding and unfolding functions.

The invention relates to a cigarette waste treatment system and an electronic scale terminal, and relates to the technical field of cigarette production. The system comprises an electronic scale terminal which is deployed at at least one waste generation station of a cigarette workshop and comprises a weighing module, a touch screen, a processor module, an embedded coding machine and a roller, the initial weight of the waste of the cigarette workshop is obtained through the weighing module, attribute data of the waste is obtained through the touch screen, a bar code of the waste is generated through the processor module, and the bar code is sent to the embedded coding machine; printing a bar code through an embedded coding machine; the bar codes are printed on packages of the packaged waste materials; the handheld code scanning gun is used for scanning bar codes of the packaged waste materials to obtain attribute data and initial weight of the waste materials; and the central server is used for receiving the attribute data and the initial weight of the wastes sent by the electronic scale terminal, storing the attribute data and the initial weight of the wastes, and receiving a re-weighing request of the handheld code scanning gun for the wastes. By adopting the method, the cigarette waste treatment efficiency can be improved.

A water filtration system is shown which uses a number of rigid tubular screen type filter elements having porous exterior and interior sidewalls. The interior sidewalls form an initially open interior axial bore. The filter elements are closed at a bottom end thereof and open at a top end thereof. An elongated spray bar is rotatably mounted for rapid rotation within the open interior axial bore of each of the tubular filter elements. The spray bar has a plurality of slots cut along the length thereof in a predetermined pattern and an internal bore which is in communication with a source of high-pressure air and high-pressure water. The application of high-pressure air or water provides a brief pressure pulse directed radially outward which causes the spray bar to rotate and spray air or water outwardly from the spay bar slots and through the interior sidewall of the porous filter elements to dislodge any collected filter cake from the exterior wall surfaces in use.

The invention belongs to the technical field of filter presses, and discloses a filter press forced cake unloading filter cloth and a forced cake unloading mechanism, the filter press forced cake unloading filter cloth comprises a composite filter cloth, the composite filter cloth comprises a filter layer and a base cloth layer, the filter layer is formed by compounding polytetrafluoroethylene, polyphenylene sulfide and matrix resin, and the base cloth layer is formed by compounding polytetrafluoroethylene, polyphenylene sulfide and matrix resin. The warps of the base cloth layer are formed by twisting polytetrafluoroethylene fibers and zirconium oxide fibers. The polytetrafluoroethylene has corrosion resistance, the polyphenylene sulfide has high temperature resistance, and the zirconium oxide fiber has a synergistic effect of thermal shock resistance, so that the composite filter cloth can stably run for a long time in high-temperature, high-pressure and acid-base environments, the problem that traditional filter cloth is easy to age and damage is solved, and the composite filter cloth optimizes the air permeability and the filtering precision, and has a good application prospect. And the filter cloth has the advantages of corrosion resistance, reduction of filtrate leakage pollution, reduction of waste generation, improvement of the service life, meeting of green production requirements, wide application in the fields of industrial dust removal, chemical filtration, aerospace and the like, and higher adaptability compared with the traditional filter cloth.

The invention discloses a preparation device of a PVC environment-friendly calcium-zinc liquid heat stabilizer, and relates to the technical field of PVC heat stabilizer production. The device comprises a bottom plate, a mounting structure is fixedly connected to the upper end face of the bottom plate, lifting structures are symmetrically and fixedly connected to the middle of the upper end face of an inner cavity of the mounting structure, inclined telescopic structures are symmetrically and fixedly connected to the upper end face of the inner cavity of the mounting structure with the lifting structures as the center line, and a heating structure is arranged on the lower portion of the inner cavity of the mounting structure; a stirring driving structure is arranged in the middle of the lower end face of the bottom plate, through an inclined telescopic structure and a reaction structure on the inclined telescopic structure, a stirring structure is installed and placed in the using process, then preparation raw materials are stored and processed through a sealing frame and a sealing plate, the safety of the operation environment is guaranteed, and volatile substances are prevented from leaking out; the environment-friendly requirement is met, waste is reduced, personnel can conveniently store and take the reaction structure through the sliding frame, thorough cleaning is facilitated, and cross contamination is prevented; the modular structure is convenient to replace or maintain, and the service life of equipment is prolonged.

The invention discloses a treatment process for high-copper sulfur concentrate waste sulfuric acid treatment, and relates to the technical field of waste sulfuric acid treatment, the treatment process comprises the following steps: S1, waste sulfuric acid pretreatment; s2, copper deposition reaction; s3, cobalt and nickel precipitation reaction; and S4, carrying out double-way optimization treatment. Through the integral treatment process, the high-quality gypsum can be obtained, heavy metals such as copper, cobalt and nickel are prevented from being mixed into the gypsum in the conventional treatment process, and a foundation for effectively utilizing the gypsum is laid. And heavy metals in the waste sulfuric acid are effectively converted into mineral products, so that the heavy metals such as copper, cobalt and nickel in the waste sulfuric acid are comprehensively utilized, and the solid waste generation amount of waste sulfuric acid treatment is reduced.

The present invention provides a method for treating oily wastewater. The method relates to the field of oily wastewater treatment. A solid-oil-water slurry phase obtained by mixing a hydrophobic ZIF material with oily wastewater and allowing it to stand is placed in an acidic environment. The oil-containing hydrophobic ZIF material is dissolved with acid, and a ligand corresponding to the hydrophobic ZIF material is added to the aqueous phase after acid hydrolysis to recover the hydrophobic ZIF material and the oil. Through acid hydrolysis, the hydrophobic ZIF material is decomposed into its constituent components in an acidic environment, and oil substances can be completely released, avoiding the situation where oil substances remain on the solid material, thereby improving the oil recovery rate and recycling the hydrophobic ZIF material, reducing material consumption and waste generation.

The utility model discloses a CO2 carbonization maintenance device suitable for generating aggregate from steel slag-ardealite solid waste, which comprises a waste heat recovery system and a carbonization maintenance-solid waste aggregate generation system, and a gas outlet end (4) of the waste heat recovery system is connected with a gas inlet pipeline of the carbonization maintenance-solid waste aggregate generation system; gas flow controllers are arranged at the gas inlet end (5) and the gas outlet end (4) of the waste heat recovery system; and gas of the carbonization curing-solid waste aggregate generation system is discharged from the gas outlet pipeline (3). Industrial waste gas waste heat is used as a heating heat source, the internal temperature distribution of the equipment is uniform, the air permeability is good, the requirements of constant-temperature carbonization curing process conditions can be well met, the operation cost is low, and the carbonization curing, energy conservation and emission reduction effects are good. Meanwhile, the device is simple in overall design and convenient to operate, all parameters in the maintenance process can be accurately controlled, accurate maintenance can be achieved, and the overall maintenance efficiency can be improved.

The utility model relates to the technical field of waste gas treatment, and discloses a formaldehyde production waste gas treatment device which comprises an absorption device and further comprises a discharge mechanism, a reaction device and a control device, the side face of the absorption device is fixedly connected with the inner side of the reaction device, and the bottom end of the absorption device is fixedly connected with the top end of the control device. The top end of the discharging mechanism is fixedly connected with the side face of the absorption device, the bottom end of the reaction device is fixedly connected with the top end of the control device, the absorption device comprises a water storage pump and a water conveying pipe, and the top end of the water conveying pipe is fixedly connected with a connecting pipe; the spraying tank and the nozzle are arranged, so that the liquid absorbent can be in full contact with the formaldehyde waste gas, the removal efficiency is improved, the absorbent can be recycled, waste generation is reduced, and certain economic benefits are achieved; by arranging the harmful gas sensor and the water quality sensor, the concentration of discharged gas can be monitored in real time, the system can give an alarm immediately, and therefore measures can be taken in time.

The embodiment of the invention discloses a method and device for determining material consumption and waste output of a foundation pit supporting beam, and the method comprises the steps: opening or creating a three-dimensional building information model comprising a foundation pit model and a supporting member model in target building model software; obtaining three-dimensional model information, supporting beam related parameters, foundation pit elements and supporting component elements from the three-dimensional building information model, and determining a generation range of a foundation pit supporting beam; determining modeling positioning information of the supporting beams based on the generation range of the foundation pit supporting beams and the setting spacing of the supporting beams; generating a supporting beam model within the generation range of the foundation pit supporting beam based on the modeling positioning information of the supporting beam, the supporting beam size parameters and the supporting beam reinforcement information; and determining the concrete consumption, the steel bar quality and the waste generation amount based on the support beam model and the reinforcement information. According to the embodiment of the invention, the concrete consumption, the steel bar quality and the waste generation amount of the foundation pit supporting beam can be accurately determined.

To provide a carbonization furnace that easily maintains carbonization performance even when carbonized waste such as dirt or food residue adheres to it. [Solution] This carbonization furnace 1 comprises a carbonization chamber 2 having a heat supply unit 21 and a waste gas inlet 22, a heater 3 that heats the inside of the carbonization chamber 2 by supplying heat from the outside to the heat supply unit 21, a lidded crucible 4 having thermal conductivity into which waste is fed and transported into the carbonization chamber 2, a waste gas duct 5 connected to the waste gas inlet 22 and passing waste gas generated from the waste in the crucible 4 through, and a deodorizer 6 that deodorizes and discharges the waste gas from the waste gas duct 5.

The invention relates to the technical field of agricultural waste recovery and resource utilization, in particular to an intelligent crop waste recovery platform based on the Internet of Things, and aims to improve the recovery efficiency of crop wastes, reduce environmental pollution and promote agricultural sustainable development. The platform comprises an Internet of Things sensing unit, a data transmission unit, an intelligent analysis and scheduling unit and a user interaction unit. Real-time monitoring and intelligent scheduling of crop wastes are realized through the Internet of Things technology, and a recovery path and a processing flow are optimized. Meanwhile, the platform provides convenient operation interfaces and services for farmers, and the enthusiasm of the farmers to participate in waste recovery is improved. According to the system, the Internet of Things technology is utilized, from the source of crop waste, accurate information positioning and tracking are carried out, efficient and orderly recycling management is achieved through intelligent analysis and scheduling, meanwhile, multiple excitation modes such as point reward are adopted, peasant households are encouraged to participate actively, and remarkable economic, social and environmental benefits are achieved.

The utility model relates to the technical field of textile equipment, and provides a spreading machine of a hemming removing device, which comprises a working frame, the bottom of the working frame is fixedly connected with two limiting plates, the outer surfaces of the two limiting plates are both provided with a plurality of tooth grooves, the outer surfaces of the two limiting plates are both provided with sliding holes, and the tooth grooves are communicated with the sliding holes. A fixing rod is movably embedded in the inner surfaces of the two sliding holes, the outer surface of the fixing rod is movably sleeved with a tensioning wheel, two fixing blocks are fixedly connected to the outer surface of the fixing rod, rotating shafts are movably embedded in the outer surfaces of the two fixing blocks, a first handle is fixedly installed on the outer surface of one rotating shaft, and a second handle is fixedly installed on the outer surface of the other rotating shaft. Due to the movement of the tensioning wheel in the vertical direction, the tension of the cloth is uniformly distributed, the cloth surface is flat, the product quality is ensured, meanwhile, the problems that the cloth is too tight, broken and torn due to the fact that the diameter of the roll material is reduced and the tension borne by the roll material is too large are solved, the waste generation rate is reduced, and the production cost is reduced.

The utility model discloses a dye recycling device based on water-free printing and dyeing of cotton cloth, which belongs to the technical field of printing and dyeing dye treatment and is characterized by comprising a stabilizing table, an auxiliary structure is bolted on the inner side of the stabilizing table, and a treatment structure is movably connected on the inner side of the auxiliary structure. The top of the storage box is movably connected with the bottom of the mounting cover, the top of the mounting cover is fixedly connected and communicated with the bottom of the proportioning block, the inner wall of the proportioning block is rotatably connected with the outer wall of the rotating block, the inner side of the mounting cover is movably connected with the outer side of the plugging block, and the outer side of the plugging block is connected with the inner side of the storage box in an inserted mode. The use of water and the generation of waste water are reduced in the existing waterless printing and dyeing, but if the used organic solvent is directly discharged into the environment, the environment can still be polluted, the dye can be recycled, and the resource consumption and the generation of waste can be reduced.

The utility model relates to the technical field of cable production, and discloses a cutting device for cable production, which comprises a bottom plate, a support is fixedly connected to the front part of the upper side of the bottom plate, a circular ring is fixedly connected to the middle of the support, an outer gear ring is fixedly connected to the front side of the circular ring, and a sliding block is slidably connected to the front side of the circular ring. A mounting frame is fixedly connected to the front side of the sliding block, a motor is fixedly connected to the side, close to the sliding block, of the mounting frame, a gear is fixedly connected to the output end of the motor, and an air cylinder is fixedly connected to the bottom of the motor. According to the cable cutting device, the motor rotates to drive the gear to rotate, the gear is meshed with the outer gear ring, the mounting frame is driven to conduct circular motion along the circular ring, the cutting module is further driven to conduct circular motion, annular cutting of a cable is achieved, it is guaranteed that the cutting edge is smooth, and subsequent machining or butt joint is facilitated. The design of annular cutting improves the utilization rate of materials and reduces the generation of waste materials.

This invention discloses a continuous-flow Fenton device based on a fixed-bed-like design, comprising a wastewater tank, a first water pump, a catalytic reaction module, a second water pump, and a purified water tank. The first water pump provides the water flow power, causing wastewater to flow from the wastewater tank to the catalytic reaction module, and then the second water pump transports the water treated by the catalytic reaction module to the purified water tank. The catalytic reaction module includes a module cavity and a solid catalyst module disposed inside the module cavity. The module cavity has a module replacement port for disassembling and removing the solid catalyst module from the module cavity. The solid catalyst module is made of a reverse-loaded Co3O4-Al2O3 composite catalytic material. This invention, through a detachable and replaceable catalytic reaction module and a specific reverse-loaded Co3O4-Al2O3 composite catalytic material, achieves high removal rates for both single and complex organic pollutants, with stable operation, low loss, and high recovery rate; it can effectively solve the problems of excessive waste generation and difficult catalyst recovery in traditional Fenton devices.