49 results about "Zero waste" patented technology

The invention relates to the technical field of molten salt treatment, and discloses a molten salt recovery system based on a steel belt cooling granulator. The system comprises a molten salt physical property monitoring module, a viscosity modeling module, a cooling optimization module, a partition temperature control module, a phase change monitoring module, a dynamic adjustment module, a particle size analysis module, a quality grading module, a pneumatic conveying module and a waste heat recovery module. The progressive crystallization control of the molten salt particles is realized; a heat pipe type heat exchanger and an organic Rankine cycle system are integrated at the waste heat recovery end, so that comprehensive energy consumption is reduced; the environment regulation and control end monitors the workshop temperature and humidity in real time based on a dew point calculation model, and the long-term stability of hygroscopic fused salt particles is guaranteed. According to the method, four technical bottlenecks of out-of-control crystallization, energy waste, classification loss and environmental interference in fused salt recovery are overcome, and low-cost, high-purity and zero-waste fused salt resource recycling is realized.

A method for recycling catalytic metals comprising: collecting a plurality of spent catalytic metals, wherein the spent catalytic metals contain cathodes of NMC111, NMC622, NMC811, NCA, LCoO2, LiNi0.5Mn1.5O4, LiMnO4, LiNiO2, LiMn2O4, and / or LiMnO2 compositions; subjecting the plurality of spent catalytic metals to a green mixture, wherein the green mixture includes dihydrogen phosphite and water, phosphoric acid and water, sulfuric acid and water, hydrogen chloride and water, or nitric acid and water, at temperatures of between 80 and 120° C. to form a metal leachate solution; and recovering lithium (Li) from the metal leachate solution.

The invention provides a sand mold three-dimensional interconnected high-flexibility channel rapid freezing device and method.The device comprises a frozen sand mold printing system and a frozen sand mold post-processing system, and the frozen sand mold post-processing system comprises a pore positioning module, a pore sand cleaning module and a rapid freezing module; a belt conveyor is arranged between the frozen sand mold printing system and the frozen sand mold post-processing system, and a printed frozen sand mold is transferred from the frozen sand mold printing system to the frozen sand mold post-processing system through the belt conveyor. On the basis of an airflow scanning positioning and closed-loop sand cleaning system, the pore three-dimensional shape is precisely reduced, residual sand is removed, micron-sized pore control and overall frozen sand mold rapid freezing are achieved, the consumable cost is reduced, the frozen sand mold whole-process machining efficiency is effectively improved, and the product quality is improved. And a high-precision, short-period and zero-waste green casting solution is provided for the fields of aerospace, automobiles and the like.

The invention discloses a tungsten-molybdenum separation method based on tungsten coprecipitation inhibition. The tungsten-molybdenum separation method comprises the following steps: measuring the content of each ion in a tungsten-molybdenum mixed solution; converting Fe < 3 + > and Cu < 2 + > into water-soluble complexes, precipitating and separating out Si < 4 + >, and filtering to obtain a pretreated solution; adjusting the pH value of the pretreated solution to 4.5-6.0, raising the temperature to 40-55 DEG C, adding a compound complexing agent and a precipitation accelerator, then adding an ammonium sulfide solution, maintaining the pH value of the system, continuing the reaction until the end, and performing solid-liquid separation on the product to obtain filtrate and filter residues; washing and drying filter residues to obtain molybdenum sulfide; and combining the washing liquid of the filter residues and the filtrate, and obtaining a tungsten product through an ion exchange method. The invention innovatively provides a double-function technical route of selectively vulcanizing and precipitating molybdenum and complexing and stabilizing tungsten in situ, and efficient separation of tungsten and molybdenum and zero waste of tungsten resources are realized by accurately regulating and controlling a reaction environment and optimizing a reagent system.

The invention relates to the technical field of tobacco flavor processing, in particular to a method for preparing hawthorn extract by combining high-voltage discharge with fermentation treatment or low-temperature plasma, which overcomes four major pain points of'thin aroma, thermosensitive vulnerability, long flow and high cost 'of the traditional hawthorn extract by one stroke. The aroma richness is remarkably improved, the extraction efficiency is remarkably improved, the resource utilization rate is remarkably improved, and the energy consumption and emission are remarkably reduced; the technology is in a normal-temperature short range, the equipment is universal and easy to amplify, the solvent is recycled and zero-waste, the residue can be used for preparing the fertilizer, the economic, environment-friendly and sensory benefits are taken into account, a reproducible, generalizable and sustainable green manufacturing normal form is provided for the cigarette and food natural perfume industry, and the method has wide industrial application prospects.

A method for recycling catalytic metals comprising: collecting a plurality of spent catalytic metals, wherein the spent catalytic metals contain cathodes of NMC111, NMC622, NMC811, NCA, LCoO2, LiNiO.5Mnl.5O4, LiMnO4, LiNiO2, LiMn2O4, and / or LiMnO2 compositions; subjecting the plurality of spent catalytic metals to a green mixture, wherein the green mixture includes dihydrogen phosphite and water, phosphoric acid and water, sulfuric acid and water, hydrogen chloride and water, or nitric acid and water, at temperatures of between 80 and 120°C to form a metal leachate solution; and recovering lithium (Li) from the metal leachate solution.

The invention discloses a hot melt adhesive film plate re-pasting production method which is characterized by comprising the following steps: S1, dedusting a base material to ensure that the surface is flat and clean; s2, the decorative fabric is cut according to the size of the plate; s3, the surface of the base material is covered with the hot melt adhesive film; wherein the coating amount and temperature of the hot melt adhesive are based on the fluidity of the hot melt adhesive during subsequent hot pressing; and S4, the base material coated with the adhesive film and the decorative fabric are stacked and then fed into a hot press, the adhesive film is molten and flows, and firm bonding of the base material and the fabric is achieved. By means of the method, the problems of gas emission, no pollution, no waste, high environmental protection and better promotion of plate gluing are effectively solved, flour is not used in the compounding process, and the problems of environmental protection and grain waste can be effectively solved. And in the production process of the artificial board, zero emission of harmful gas can be achieved, no pollution is caused, and the efficiency can be improved in reproduction.

The invention relates to the technical field of iron-containing mineral treatment, in particular to a method for comprehensively utilizing iron-containing minerals, which comprises the following steps: through the whole-process cooperative treatment of low-temperature weak reduction magnetization, magnetic separation, associated element gradient extraction and tailing gelatinization, iron, titanium and rare earth are respectively collected, and iron can be efficiently and magnetically separated and recycled under the mild condition of lower than 750 DEG C; the energy consumption and the carbon emission are greatly reduced; titanium, manganese and rare earth are clearly separated due to the fact that oxide forms are kept, the rare earth is subjected to normal-temperature leaching and environment-friendly extraction, oxalic acid precipitation closed-loop recovery, and waste liquid is recycled; the magnetic separation tailings and the titanium slag are directly prepared into a high-strength geopolymer gelling material according to the proportion of 7: 3, the tailings are completely converted into building materials or heavy metal contaminated soil remediation filler, a tailing dam is thoroughly omitted, and the risks of dam break and percolation are eradicated; and finally, the high-iron concentrate, the mixed rare earth oxide and the high-added-value gelling material are output, and a virtuous cycle with full utilization of resources, zero emission of waste and win-win economy and environment is formed.

The invention provides a silicon steel coating waste liquid treatment system and process method.The silicon steel coating waste liquid treatment system comprises a pretreatment system, a first-stage treatment system, a second-stage treatment system, a deep treatment system and a discharging system, and the pretreatment system is used for pretreating and transporting waste liquid; the primary treatment system is used for removing part of pollutants in the waste liquid; the secondary treatment system is used for removing and converting part of pollutants in the waste liquid and separating water from part of pollutants in the secondary treatment system; the deep treatment system is used for separating and adsorbing residual pollutants in the waste liquid; and the discharge system is used for treating and discharging substances removed in the primary treatment system, the secondary treatment system and the deep treatment system. The method provided by the invention has the advantages of zero discharge of waste liquid, good recycled water quality, small dosage of chemical agents and small solid waste amount, reduces the hazardous waste outsourcing disposal cost of enterprises, and also reduces the operation load and operation cost of a comprehensive water treatment station system.

The invention provides a laser line marking machine, which relates to the technical field of line marking machines, and comprises a consumable supply assembly, a laser etching assembly and a cutting module, according to the invention, the production logic of the wire marking pipe is fundamentally reconstructed by designing a system architecture integrating online curling forming and laser marking of the sheet; in the economic level, low-cost sheets are directly adopted, and the production mode of nearly zero waste is adopted, so that the cost of a single product is obviously reduced; and on the production level, the equipment is changed into a universal platform from a special tool, a user does not need to reserve various consumables for different specifications, and flexible manufacturing and quick response are truly achieved.

Extensible modular foundation with one or several layers of foundation (or modules), each with an extension higher than the previous one, superimposed on an existing or newly built base footing, joined only in its central part by means of anchor bolts and extensions, working structurally as a laminar foundation, constituted by the outermost foundation layer, combined with a lower counterweight constituted by the previous layers and the base footing, with great effectiveness to support the necessary stresses in high-rise elements, being able to build successive layers of foundation on top of the already existing ones. It is a modular structure that can be extended from its conception, evolving over time, adding more layers according to future needs without penalising the initial investment, avoiding the modification of the base shoe, reducing construction time and economic cost, while generating much less waste in line with the sustainability objective of "Zero Waste".

This invention relates to a standardized, zero-waste, data-quantified, rapid switching system for sheet metal production lines. The system includes: a base mounted on the ground, comprising: a first reference surface, a machined horizontal surface on the base; a second reference surface, a machined side surface on the base, perpendicular to the first reference surface; a side generatrix, parallel or coplanar with the second reference surface; a functional moving component mounted on the first reference surface; a first detection surface, a side surface on the functional moving component that can be used for measurement, or a side surface of the sheet metal workpiece; and a work instruction signboard dimension, representing the opening distance between the first detection surface and the second reference surface. This invention, by measuring the distance between the end face of the detection protrusion and the moving side of the equipment on the production line, combined with design drawings, quickly locks the position of the production line equipment along the Y-axis, enabling rapid switching of any specification on the sheet metal production line with precise switching and no unnecessary waste.

The goal is to achieve both upcycling and zero waste simultaneously. [Solution] The system comprises: a recycled raw material quantity calculation means that calculates the quantity of recycled raw materials that can be recycled as raw materials from the quantity of waste materials generated in the production process; a planned production quantity input means that inputs the planned production quantity of products to be produced using the raw materials; a new raw material quantity output means that calculates the quantity of raw materials required based on the planned production quantity input into the planned production quantity input means and outputs the quantity of new raw materials that are newly required by subtracting the quantity of recycled raw materials calculated by the recycled raw material quantity calculation means; and a waste material quantity calculation means that calculates the quantity of waste materials generated in the production process based on the planned production quantity input into the planned production quantity input means. The system simulates the quantity of recycled raw materials and the quantity of new raw materials from the quantity of waste materials calculated by the waste material quantity calculation means, and realizes a circular economy without difficulty by changing the flow of money.

The utility model discloses a greenhouse gas treatment system, which comprises a gas trapping and storing device, a gas purifying device and a reactor which are sequentially connected in series through pipelines, and gas products produced in the reactor sequentially pass through a gas product collecting device and a gas product separating device which are connected in series to form single elementary gas. Solid products produced in the reactor sequentially pass through a solid product collecting device and a solid product detecting device which are connected in series, and then single solid elementary substance products are collected in the solid end product collecting device. The greenhouse gas treatment system provided by the embodiment of the utility model can be used for capturing, storing and treating various greenhouse gases, products are gas elementary substances and solid elementary substances, the atom utilization rate is high, the treatment process is safe and stable, the energy consumption is low, no catalyst is used, meanwhile, zero carbon emission and zero waste emission are realized in the production process, the final products are all elementary substance products, and the production cost is low. And the raw material is the greenhouse gas, so that the aim of reducing the emission of the greenhouse gas is fulfilled, the manufacturing cost is low, and the market price of related simple substance products can be greatly reduced.

The application discloses a wall plastering gypsum continuous coating forming device and a wall forming method, and belongs to the technical field of building machines. The device comprises a hollow sealed bin assembly, a centrifugal device, a leveling device, a collection and scraping device assembly and a sensing device assembly. The hollow sealed bin and the wall form a relatively sealed cavity. The centrifugal device throws the gypsum on the wall by high-speed rotation, thereby improving the bonding force and uniformity. The collection and scraping device completes scraping and light collection, and the remaining materials are recycled in the sealed bin. The sensing device realizes closed-loop regulation and control of the material level, bin pressure and plastering thickness. The forming method comprises positioning, centrifugal slurry throwing, thickness detection, scraping and light collection, internal circulation of the remaining materials and continuous integrated construction. The application solves the problems of weak adhesion, large waste of remaining materials and poor one-time forming of the prior art, has the advantages of high bonding strength, zero waste of remaining materials, high automation degree and one-time forming up to standard, and is suitable for automatic wall plastering operation of plastering machines and plastering robots.

The utility model provides a kind of embedded pure drinking machine zero waste water system with reverse water supply, it is related to pure drinking machine technical field, including water inlet and booster pump, the input end of the booster pump is connected with composite filter element, the output of the booster pump is connected with water inlet solenoid valve, the output of the water inlet solenoid valve is connected with RO membrane, the side of the RO membrane is connected with combined waste water valve.The utility model discloses when machine 30 minutes do not make water using RO membrane front section pure water directly into waste water pipe 5 seconds, the stale water in RO membrane is discharged, to reduce the TDS value of first cup water, machine in 30 minutes has water machine and does not discharge (TDS at that time is not high).Reduce the concentration of harmful substances, prevent impurities in water from re-dissolving or precipitating, improve the safety of water quality;Reduce the reproduction of microorganisms in the water purifier, reduce the risk of microbial contamination, users do not need to put down stale water before taking water, can obtain high-quality purified water at any time, and the taste of water is stable, reduce the waste of water resources.

The invention relates to an ecological environment-friendly prefabricated light roof garden unit and garden system.The garden unit comprises a planting frame, a base, an outer wrapping plate, a water filtering layer, a water retention layer, a nutrition base layer and a vegetation layer, drainage holes are formed in a drainage bottom plate of the planting frame, holes are formed in the base, part of the holes are communicated with the drainage holes, and the rest of the holes form a water storage cavity; the outer wrapping plate is correspondingly installed on the side wall of the planting net rack, a planting area is defined by the outer wrapping plate and the base, and the water filtering layer, the water retention layer, the nutrition base layer and the vegetation layer are sequentially installed in the planting area from bottom to top. Agricultural waste straw serves as a core raw material and is subjected to carbonization and waterproof treatment to be manufactured into a base and an outer wrapping plate, efficient utilization of agricultural solid waste is achieved, the weight of garden units is controlled through the lightweight characteristic of straw, the problem that a traditional roof garden is difficult to adapt to old buildings due to heavy loads is solved, straw materials can be degraded into organic fertilizer, and the environment is protected. And zero waste in the whole life cycle is realized.

This invention discloses a vacuum closed-loop recovery method for recyclable camphor pore-forming agent with an explosion-proof safety mechanism, belonging to the field of porous material preparation technology. It solves the problems of existing camphor pore-forming processes lacking closed-loop recovery and posing explosion safety hazards. This invention constructs a complete explosion-proof safety mechanism through a full-process technology of pre-inert gas replacement, vacuum gradient sublimation camphor removal, and directional condensation solid-state recovery, eliminating the risk of camphor vapor explosion at the source. Simultaneously, it achieves a camphor pore-forming agent recovery rate of ≥90%, and the recovered camphor can be directly recycled and reused, with zero waste gas emissions throughout the process. This method is adaptable to pore-forming of various suitable matrix materials, is safe, low-cost, and suitable for large-scale industrial production.

The invention discloses a comprehensive utilization process for superfine pulverization and zero waste discharge of coal gasification slag, and belongs to the field of solid waste recycling. The process comprises the following steps: treating coal gasification slag with different particle fractions; carrying out spiral chute-shaking table separation on carbon-rich components and carrying out gradient utilization on heat energy; and preparing ceramic and ceramsite or different types of building mortar. According to the process disclosed by the invention, the coal gasification slag is converted into high-purity silicon-aluminum-based powder with the SiO2 / Al2O3 molar ratio of 1.0-2.5 through superfine pulverization. The recycling rate of the whole process is larger than or equal to 97%, and zero waste discharge is achieved.

The present invention relates to a zero-waste eco-friendly cosmetic product and a method for manufacturing same. The present invention provides a cosmetic product that does not contain plastic and minimizes the generation of waste and thus is eco-friendly and can be used by cutting. In addition, the method for manufacturing a cosmetic product according to the present invention has the effect of ensuring stability by minimizing pinholes and molding marks which can be formed in the cosmetic content.

The application discloses a kiln waste heat sludge drying waste gas closed loop treatment system and process, belonging to the field of solid waste drying and waste gas treatment. The system contains a double-unit drying main body, a distributed temperature monitoring unit, a cylinder driving speed regulation unit, a material conveying and oxygen supply unit, and a waste gas closed loop treatment unit. The double-unit is two independent units each with four series-connected cylinders, which are matched with eight temperature sensors for accurate temperature measurement. The cylinder rotating speed can be dynamically adjusted according to the temperature, and dynamic oxygen supply can promote the decomposition of organic matter. After multi-step treatment, the waste gas is sent into the kiln for high-temperature decomposition. The process utilizes kiln waste heat to dry sludge, and the dried sludge is sent to a brick making unit. The waste water is reused, and the waste gas is treated in a closed loop. The application solves the problems of small processing scale and inaccurate temperature control of traditional equipment, realizes stable control of sludge moisture content below 30%, zero waste gas discharge, guarantees production continuity through redundant design of double-unit, and improves waste heat utilization and harmful gas decomposition efficiency.

The invention belongs to the technical field of prebaked anode production, and relates to a process system and method for continuously producing an electrode binder by taking unconverted slurry oil of a slurry bed as a raw material, the process system comprises a membrane filter, a modifier, an asphalt generator, a reduced pressure fractionating tower, a forming machine, a separator and a separating tower, according to the present invention, the high-carbon-residue-value and high-viscosity prebaked anode asphalt binder is prepared by using the continuous thermal polymerization method, such that the continuous production is achieved, the process operation is simple, the heat energy can be recycled, and the zero waste material discharge is achieved, and the method has characteristics of continuous production, simple process operation, cyclic utilization of the heat energy, and can be used for the production of the high-carbon-residue-value and high-viscosity prebaked anode asphalt binder.

The utility model relates to the technical field of textile equipment, and discloses a quick oil changing device of an air jet loom, which comprises a shell, an inner barrel rotatably connected to the bottom of the inner wall of the shell, a gear ring sleeved on the outer wall of one end of the inner barrel, a positive and negative motor fixedly connected to the outer wall of one end of the shell, and a gear fixedly connected to a rotating shaft of the positive and negative motor, according to the rapid oil changing device of the air jet loom, through mutual cooperation of the structures, it is guaranteed that oil is not leaked or splashed out in the changing process, zero waste of the oil is achieved, the device further has the waste oil recycling function, waste oil can be treated in a centralized mode, pollution of the waste oil to the environment is avoided, and the rapid oil changing device of the air jet loom is suitable for popularization and application. And the ecological environment is protected.

The application discloses a biomass pyrolysis gas purification and waste heat cascade utilization method and system and a rotary kiln dryer, relates to the technical field of biomass devices, and solves the problems of incomplete high-temperature pyrolysis gas purification and low tar and carbon powder removal efficiency. The biomass pyrolysis gas purification and waste heat cascade utilization method comprises the following steps: S1, biomass pretreatment and rapid pyrolysis: biomass raw materials are crushed to a particle size of less than or equal to 10 mm, dust is collected, and the biomass raw materials are dried to a moisture content of less than or equal to 5%, and then the biomass raw materials enter a rapid pyrolysis reaction device to generate high-temperature pyrolysis gas at a temperature of 400-600 DEG C in an oxygen isolation condition. In the application, the integrated method of high-temperature pyrolysis gas purification and waste heat cascade utilization realizes efficient removal of tar and carbon powder, closed-loop burning of waste water / tar, multi-stage cascade utilization of waste heat, achieves the goals of zero waste emission, high heat efficiency of the system and green and low-carbon operation.

The utility model belongs to the technical field of flue gas treatment, and particularly relates to a flue gas desulfurization and denitrification integrated device and method for a blast furnace hot blast stove, an outlet of a heat exchanger is connected with a booster fan, a cold air mixing valve is connected between the heat exchanger and the booster fan, and an outlet of the booster fan is connected with an inlet flue of a semi-fixed bed adsorption tower; an outlet flue is arranged on the side wall of the semi-fixed bed adsorption tower, the outlet flue and the inlet flue are arranged on different sides of the semi-fixed bed adsorption tower, the reducing agent storage device is connected with the injection structure, the injection structure is inserted into the inlet flue wall of the semi-fixed bed adsorption tower through a pipeline, and the semi-fixed bed adsorption tower is connected with the bed intermittent operation control system. An outlet pipeline at the bottom of the semi-fixed bed adsorption tower is connected with a discharging chain, the discharging chain is connected with a discharging bin, a feeding opening in the top end of the semi-fixed bed adsorption tower is connected with a feeding chain, and the feeding chain is connected with a feeding bin. The device completes desulfurization and denitrification in the semi-fixed bed adsorption tower, no additional device is needed for denitrification, the occupied area is small, and the investment is low; by-products can be comprehensively utilized, and zero waste discharge is realized.

A zero-waste brine, treatment process, method and treatment facility for separating desired materials from recovered subsurface fluids into different groupings for categorization, collection, purification and monetization, generally. Specifically, the present invention is utilized to optimize the purification of non-potable, brine water and to the separation and purification of said water whereby specific mineral byproducts are extracted and resultant water undergoes a chlor-alkali process producing NaOH and HCI wherein, the NaOH may he further mixed with CO2 to produce Na2CO3, effectuating carbon capture, which may then be sequestered via utilization. This process may be applied to transported brine to a facility, the access point of a single operational or non-operational well and / or across a group of wells and or facilities, in the aggregate.

The present invention is directed to a zero waste water ionizer and a method of eliminating acidic water using the same. The ionizer includes an alkalizer unit having an inlet for receiving feed water, a first water outlet for discharging alkaline water having a pH ranging between 8.5 to 10.5, and a second water outlet for discharging acidic water having a pH ranging between 3.5 to 5.5; and a neutralizer unit coupled with the alkalizer unit, said neutralizer unit having a first inlet, a second inlet, at least one gas outlet and a water outlet. Acidic water is generated in an anode chamber of the alkalizer unit. The water outlet discharges neutralized water having a pH ranging between 6.0 to 7.5.

The invention discloses a colored stone roll and a production process, the colored stone roll comprises a colored stone roll body, the colored stone roll body is formed by sequentially compounding a metal base material layer, a primer coating, a colored stone layer and a surface glue coating, all the layers are connected through double effects of chemical bonding and mechanical occlusion, and the colored stone roll has extremely high customization flexibility; the actual size requirement of a roof or a wall face can be completely matched, any length can be customized by means of any tile press, the length is only limited by transportation conditions theoretically, multiple remarkable advantages are brought by the characteristic, ultra-long plates can be produced, roof overall seamless covering is achieved, transverse lap joints are greatly reduced, and the production efficiency is improved. Project waterproofness and structural stability are fundamentally improved, precise fixed-length production can be achieved on site according to the actual size, almost zero waste is achieved, material loss is remarkably reduced, meanwhile, redundant transportation volume is reduced through customized production, logistics cost is effectively saved, design requirements of different scenes can be better met through diversified choices, and the method is suitable for popularization and application. And the engineering efficiency and quality are comprehensively optimized.

The invention discloses programming-free zero-waste-liquid-discharge steel mesh washing and inspection integrated equipment and a washing and inspection method thereof. The equipment comprises a rack, and a placing jig, a liquid spraying mechanism, an upper wiping mechanism, a lower wiping mechanism, a visual inspection mechanism and a lamplight mechanism are arranged on the rack; an X-axis moving mechanism is arranged on the rack in the X-axis direction, a Y-axis moving mechanism is arranged on the rack in the Y-axis direction, and a Z-axis moving mechanism is arranged on the rack in the Z-axis direction. The liquid spraying mechanism is movably arranged on the X-axis moving mechanism; the lower wiping mechanism is movably arranged on the Y-axis moving mechanism; the upper wiping mechanism and the visual inspection mechanism are both movably arranged on the Z-axis moving mechanism. The liquid spraying mechanism, the up-and-down wiping mechanism, the visual inspection mechanism and the light mechanism are integrated on the same rack and matched with the XYZ-axis moving mechanism, full-process automatic operation of placing, cleaning, wiping and detecting of the steel mesh is achieved, the working efficiency is improved, and manual intervention is reduced.

A sheet production line quick changeover system featuring standardized operation, zero waste and data quantification. The quick changeover system comprises: a machine base (1), which is arranged on the ground and comprises: a first reference surface (11), which is a machined horizontal surface on the machine base (1), and a second reference surface (12), which is arranged on a machined side surface of the machine base (1) and is perpendicular to the first reference surface (11); a side reference line (6), which is parallel to or coplanar with the second reference surface (12); a functional movement component (3), which is arranged on the first reference surface (11); a first detection surface (32), which is a side surface on the functional movement component (3) that can be used for measurement or a side surface of a sheet workpiece; and an operation guide board dimension, which is the clearance distance between the first reference surface (11) and the second reference surface (12). In view of a design drawing, by controlling the operation guide board dimension, quick changeover between production lines for sheets of different specifications can be realized, and the changeover is accurate.