37 results about "Cleaner production" patented technology

This invention belongs to the field of pharmaceutical drying technology and discloses a pharmaceutical drying and automatic lifting mixing device based on negative pressure fluidization, including a machine body, a lifting cylinder, and a second waste gas guide channel. In use, the invention drives the spiral lifting blades through a waste gas power transmission component, achieving automatic lifting and discharge of the dried material. This eliminates the need for manual transfer, reducing operator workload, improving production efficiency, and avoiding material contamination during transfer, thus meeting the clean production requirements of the pharmaceutical industry. Simultaneously, the pneumatic reciprocating lifting component drives the periodic lifting and lowering of the material plate, continuously agitating the material during the drying process. This breaks the limitations of static drying in existing equipment, ensuring that the material is uniformly exposed to hot air from all directions. This avoids problems such as uneven heating, clumping, and incomplete drying caused by material accumulation, guaranteeing the drying quality of pharmaceutical materials and preventing the destruction of active ingredients.

This invention provides a wastewater recycling system for high-temperature metal blackening production, belonging to the field of high-temperature metal blackening cleaning technology. It includes a support frame with a pretreatment structure fixedly installed on its top surface and a primary sedimentation mechanism fixedly installed on its bottom surface. An adjusting cylinder drives an internal movable pipe to move a cleaning nozzle, performing online high-pressure rinsing of the filter windows, effectively preventing filter plate clogging and ensuring long-term stable operation of the sedimentation tank. The maintenance cycle is extended from once a week to once a month. Seamless connections are achieved between various mechanisms via a clean water pump, a drain valve, an oxidation pump, a cooperating pump, a side pump, and a filter pump, ensuring a closed-loop operation of wastewater from inlet to reuse. Practical application verification shows that the wastewater recycling rate of this system can reach over 85%, an improvement of more than 50 percentage points compared to traditional processes. It can save enterprises a significant amount of fresh water and sewage discharge costs annually, resulting in substantial economic benefits.

The application discloses a production process of potassium fulvate of mineral origin, which uses weathered coal and / or lignite as raw materials, and comprises the following steps: raw coal slurry preparation, ultrasonic-assisted weak-alkali low-temperature closed-loop extraction, double-stage centrifugal separation and solar drying system drying to prepare high-activity potassium fulvate of mineral origin. The extraction is carried out at 45-55 DEG C, pH 11-12, ultrasonic power 3-5 kW and frequency 25-30 kHz for 30-60 min, and the extraction rate of fulvic acid is 65%-75%; the solar drying system is configured with an automatic turning and throwing system, a circulating ventilation system and a meteorological linkage system, and the crude liquid with a water content of 75% is dried to 15% in the whole process without waste water and carbonization. The application has the advantages of high extraction rate, low energy consumption, short time, high product activity, high small molecule content, no residue in full water solution at 25 DEG C and suitability for large-scale clean production.

This invention relates to the field of inorganic fine chemical material preparation technology, and discloses a method for preparing high-purity ultrafine calcium fluoride based on dynamic pH-controlled gradient crystallization. The method uses industrial-grade calcium carbonate and fluorosilicic acid as raw materials. Its core is based on dynamic pH gradient control of the reaction mechanism, precisely dividing the calcium fluoride crystallization process into three stages: primary nucleation, secondary growth, and tertiary purification. Through the coordinated matching of parameters such as pH, temperature, and stirring rate at each stage, complete separation and control of nucleation and growth are achieved, ultimately producing high-purity ultrafine calcium fluoride powder with a purity ≥99.9% and a particle size of 1–5 μm. This invention features low raw material costs, strong process controllability, and the main byproducts are CO2 and silicic acid, both of which can be recycled. No fluoride-containing wastewater is discharged during the process, achieving clean production. Furthermore, the process has high stability and is suitable for large-scale industrial production, offering significant economic and environmental benefits.

This invention relates to the field of conductor technology and discloses an aluminum-welded nickel sheet, comprising: an aluminum busbar with an insulating layer on its outer surface; a central bending zone formed by integrally bending the aluminum busbar; and aluminum ports at both ends of the aluminum busbar, formed by bending the ends of the aluminum busbar outwards and connecting to the aluminum busbar at right angles. This aluminum-welded nickel sheet utilizes pure nickel strip directly coated onto the outer surface of the aluminum ports via hot-press welding, replacing the traditional electroplating process. This avoids complex processes such as multiple chemical pretreatments, plating solution deposition, and post-treatment, significantly improving product yield and production stability. Simultaneously, it completely eliminates the emission of heavy metal wastewater, harmful gases, and chemical pollutants generated during electroplating, achieving clean production from the source. This aligns with the requirements of green manufacturing and sustainable development, reduces environmental pollution burden, and circumvents increasingly stringent environmental regulations.

The present application belongs to the field of papermaking industry water treatment and clean production, especially to a white water treatment system suitable for the spraying water of the wire section and press section of a paper machine, which comprises: a clean water pretreatment unit for high-precision filtration of clean water to remove suspended solids and particulate impurities in the water and ensure the cleanliness of the spraying water; a high-pressure liquid supply unit connected with the clean water pretreatment unit for pressurizing the pretreated clean water to ultrahigh pressure and secondary precision filtration to provide a stable high-pressure cleaning water source; a water quality stabilization unit connected with the high-pressure liquid supply unit for adding a compounded agent to the high-pressure spraying water and real-time regulation and control of the water quality to inhibit bacterial growth and scaling corrosion; and a partition spraying unit connected with the high-pressure liquid supply unit for ultrahigh-pressure precision cleaning of the forming wire and press felt of the wire section and press section of the paper machine. The present application provides a high-integration, recyclable, energy-saving and consumption-reducing spraying water white water treatment system.

The application relates to a high-purity VOSO4 electrolyte preparation method and relates to the technical field of vanadium compound production. The short-process technology of medium-temperature ignition, low-temperature chlorination, rectification and acidification reduction is used to efficiently extract vanadium from vanadium-containing stone coal, and the technical effect of low energy consumption and almost no pollution is realized; the process also has the characteristics of simple separation method, no need of complex extraction, high product purity, good electrolyte performance and the like, and has the advantages of short process, low energy consumption and near-zero pollution, and opens up a new way for clean production of vanadium resources.

The utility model relates to the production technology field of refined cotton, disclose a kind of energy-saving and environment-friendly high -efficient refined cotton clean production device, including first box, the top end fixedly connected with four groups first fan in the first box, the below fixedly connected with heating plate of first fan, the inside installation of heating plate has heat pipe, the bottom fixedly connected with second box of heating plate, when using, material is entered into second box by first feed port, control seat starts second servo motor, second servo motor drives the rotation of movable shaft, by installing four groups first fan in the top end inside first box, first fan blows to heating plate, movable shaft drives the rotation of stirring vane, to realize the even heating of material in second box, when drying reaches specified requirement, by starting first servo motor, first servo motor drives the rotation of baffle in second box, to make material discharge from second box bottom discharge port.

The application discloses a kind of carbon thermal method high-efficiency clean production rare earth ferrosilicon alloy processes for direct current electric arc furnace, belong to rare earth pyrometallurgy field.For the problem that existing carbon thermal method process is not enough for the characteristics of direct current electric arc furnace equipment adaptation, the application proposes some systematic innovations as follows: first, rare earth concentrate physical beneficiation pre-enrichment combined with three-stage temperature control roasting;Second, "coke+charcoal+lanthanum carbon" ternary compound carbon and intelligent carbon balance control;Third, iron additive collaborative reduction to improve the conductivity of molten pool and alloy fluidity;Fourth, "coarse-medium-fine" grading and layered distribution to match the direction of direct current electric field;Five, slag and dust ash full-component resource recovery.The process of the application can reduce the comprehensive power consumption to 7500-8000 kWh / t, the rare earth yield is more than 96%, the single furnace daily output is increased by 12-18%, the dust emission concentration is less than or equal to 10 mg / m3, the solid waste comprehensive utilization rate is greater than or equal to 90%, and the high efficiency and cleanness of carbon thermal method production of rare earth ferrosilicon alloy for direct current electric arc furnace are realized.

This utility model discloses a waste collection device for protective film processing, which includes a slitting machine and a waste collection mechanism. The slitting machine consists of a traction cutting component, a left-side machine housing, and a control box, providing the basic structure for protective film slitting. The waste collection mechanism is located at the top and bottom of the slitting machine, and its core is a negative pressure generator, which includes a film debris collection tank, an air filter, and a negative pressure fan. The negative pressure generator is connected to the upper and lower collection tanks via upper and lower negative pressure pipes, respectively, with branch pipes on the side walls of the negative pressure pipes. During operation, the negative pressure fan creates negative pressure inside the collection tank, drawing waste through the collection tank opening and into the collection tank through the negative pressure pipes and branch pipes. Air is filtered by the air filter before being discharged. This device effectively collects waste from protective film processing, preventing waste spillage and equipment malfunctions, improving production efficiency, reducing manual cleaning costs, and ensuring a clean production environment.

The application discloses a smelting method for producing medium-low carbon ferromanganese, and relates to the technical field of low-carbon ferromanganese, and comprises the following steps: uniformly mixing high-carbon ferromanganese, an oxidizing agent and a slagging agent according to a calculated proportioning ratio to prepare mixed furnace charges; putting the mixed furnace charges into a smelting furnace; implementing sectional decarburization treatment on the molten furnace charges, and gradually controlling the oxidizing agent adding amount according to a decarburization rate; adding a refining agent to the decarburized melt, and constant-temperature refining until the melt composition is uniform to obtain a refined melt; and recycling the separated slag for mixed furnace charge proportioning after harmless treatment, wherein the calculation basis of the harmless treatment steps, the recycling proportion and the recycling use times are clear, the recycling use of the slag resources is realized, the production energy consumption and the raw material cost are reduced, the environmental pollution caused by slag emission is reduced, and clean production is realized.

This application relates to an online fully automatic aluminum foil sealing machine, belonging to the technical field of intelligent equipment. It includes a conveyor frame, a support arm vertically positioned on one side of the conveyor frame, a conveyor belt mounted on the conveyor frame, a crossbar slidably mounted on the support arm, a drive component fixedly mounted thereon, and a sensor head fixedly mounted on the crossbar. Two connecting rods are detachably mounted on the sensor head, and a middle rod is rotatably mounted on the two connecting rods. A receiving rod is vertically fixed on the lower end face of the middle rod, and a flexible storage bag is provided between the two receiving rods. An elastic clamping rod is provided above the receiving rod, one end of which is rotatably connected to the upper side of the receiving rod near the middle rod, and a positioning hook is fixed on the other end of the elastic clamping rod. A positioning slot is provided on the receiving rod. This application enables real-time temporary collection of aluminum foil waste and other debris generated during the sealing operation, preventing waste from scattering around the equipment and the conveying mechanism, maintaining a clean production site, and reducing interference from waste on equipment operation.

The application relates to a method for regulating and separating arsenic and valuable metals in smelting flue gas, and belongs to the field of clean production technology. After chalcopyrite powder is mixed into smelting flue gas, on one hand, metal oxides are converted into sulfates, and on the other hand, formed arsenate can be dissociated, arsenic is volatilized in the form of As2O3, and metals are converted into corresponding sulfates and oxides to return to a smelting system, formation of arsenate in the flue gas is inhibited, the purpose of separating arsenic and valuable metals is achieved, and the efficiency of dry collection of As2O3 in the flue gas is improved. Formation of arsenic-containing dust is reduced, and production cost of a smelting enterprise is saved.

This invention discloses a mixing and preparation device and method for geopolymer water-retaining road materials. The device includes an alkali activator preparation module, a geopolymer generation module, an aggregate mixing module, and a cleaning system. This invention employs a multiple-stage silo-feeding system, reducing residue through the sloping bottom of the silos and achieving continuous static feeding of the alkali activator, significantly improving construction efficiency. Furthermore, this invention utilizes a steam-heated jacket to accelerate geopolymer aging, combined with a retractable high-temperature viscometer to monitor viscosity in real time as the aging endpoint criterion, solving the problems of long aging times and unstable quality in traditional processes. An eccentric vibrator is used to assist in discharge, solving the problem of residue from high-viscosity materials. Through an integrated cleaning system, overlapping of operation and cleaning sequences, and a cascaded wastewater utilization design, the entire system is automated for cleaning, exhibiting significant advantages in continuous, automated, and clean production.

This application relates to the field of clean production technology. Specifically, an embodiment discloses a portable electrolyte mixing container device, comprising: a container body and a mobile trolley. The container body includes a spout, a top lug, and a bottom lug. The container body has an opening at the top. The spout is located on one side wall of the container body. The top lugs are located on two opposite side walls of the container body, and the bottom lugs are located on the side wall of the container body opposite the spout. The mobile trolley includes a base plate and an anti-scalding plate, with the anti-scalding plate located at one end of the base plate. This addresses the problem of difficulty in adding or removing electrolyte from the container in the prior art.

The application provides a printing and dyeing wastewater and waste gas treatment equipment, and relates to the technical field of clean production. The equipment comprises a water collecting tank, a water inlet pipe is arranged on the upper end of the water collecting tank, a gas outlet pipe is communicated with the upper end of the side wall of the water collecting tank, a sedimentation tank is arranged on the inner wall bottom of the water collecting tank, a drain pipe is communicated with the side wall of the sedimentation tank, the drain pipe is fixedly connected with the water collecting tank, a cleaning structure is arranged on the inner wall of the water collecting tank, the cleaning structure comprises a support, a sharp used for scraping and crushing hardened pollutants, and bristles used for brushing off the scraped and crushed pollutants, the support is fixedly connected with the inner wall of the water collecting tank, a servo motor is arranged on the surface of the support, and a rotating drum is fixedly connected with the output end of the servo motor. The cleaning structure is arranged to clean the hardened solid pollutants in the sedimentation tank, so that the solid pollutants can be discharged from the sedimentation tank, and the sedimentation tank can normally perform sedimentation treatment on the wastewater.

This invention discloses an environmentally friendly and efficient method and equipment for preparing calcium lactate. The specific steps are as follows: Step S1: Using lactic acid and calcium compounds as raw materials, the molar equivalent ratio of the raw materials is controlled to be (2.0-2.1):1; Step S2: During the reaction, humidity is controlled by adjusting the amount of water added to 10%-40% of the total mass of the raw materials; Step S3: The reaction is stirred at 50-85℃ for 1-4 hours to form a calcium lactate slurry; Step S4: The obtained slurry is crystallized at a temperature controlled at 20-40℃; Step S5: The crystallized product is crushed, dried, and pulverized to obtain the finished calcium lactate. This invention can achieve the following energy-saving and environmental protection benefits: no wastewater discharge throughout the process, achieving clean production; energy consumption is reduced by more than 30% compared to traditional methods; no organic solvents are used, reducing environmental pollution; and the raw material utilization rate is high, reducing resource waste.

This utility model relates to the field of aluminum plate processing technology, and in particular to a cold rolling oil recovery device for cold rolling aluminum strip. It includes a U-shaped mounting base with two mounting plates slidably installed inside. Each mounting plate has a scraper blade mounted on its opposite side, and the scraper blades are V-shaped. Each scraper blade consists of an angled plate and a connecting plate, designed in a V-shape, and equipped with a detachable connection structure. This structure allows for flexible adjustment of the scraper blade length according to the width of the aluminum strip, ensuring the scraper blade fits tightly against the aluminum strip surface, improving the scraping effect. It also facilitates effective oil recovery for aluminum strips of different widths. Furthermore, the inclined scraper blade design allows the oil to flow smoothly to both sides of the scraper blade and ultimately into a receiving box, achieving centralized oil collection, preventing oil spillage, maintaining a clean production environment, reducing oil pollution to equipment and the ground, and facilitating subsequent oil treatment and reuse.

This invention discloses a method and production system for granulating powdered fluorides based on secondary sintering and closed-loop graded circulation, belonging to the field of fluoride processing technology. Based on the high-temperature melting and bonding characteristics of fluorides, the method innovatively employs a secondary sintering process including "heating-power-off homogenization-reheating" and a segmented crushing process of "jaw crusher coarse crusher-roller crusher fine crusher," and constructs a closed-loop material circulation system that classifies and directionally returns ultra-large particles and fine powders to their corresponding processes. The production system includes a quantitative loading unit, a secondary sintering unit, a segmented crushing unit, a closed-loop graded circulation unit, and a finished product packaging unit connected in sequence. This invention ensures the strength and density of the sintered blocks through secondary sintering, and achieves a raw material utilization rate of over 95% through closed-loop graded circulation. It completely solves the technical problems of severe dust generation and poor flowability of powdered fluorides, and the resulting granular products have uniform particle size (60-200 mesh), suitable for large-scale continuous clean production.

This invention discloses a water quality control method for reducing ammonia nitrogen emissions in aquaculture water, belonging to the field of aquaculture environmental control. Based on in-depth research on the ammonia metabolic plasticity of carnivorous fish, this invention provides a time-series dissolved oxygen control strategy: lowering the dissolved oxygen concentration to 2.5-3.5 mg / L under hypoxic stress for 24 hours, followed by raising the dissolved oxygen concentration to 9.0-10.0 mg / L for oxygen-enriched recovery for 24 hours, thus forming a water quality control method to reduce total ammonia nitrogen emissions from farmed fish. Experimental results show that using the water quality control method provided by this invention, a single hypoxic stress-oxygen-enriched recovery control can reduce the cumulative ammonia nitrogen in aquaculture water by more than 24%, while maintaining the health of the fish. This invention reduces ammonia nitrogen emissions at the source, is simple to operate, and is environmentally friendly, providing a low-cost, high-efficiency clean production technology solution for intensive aquaculture.

The application discloses a preparation method of modified high-carbon ferrochrome based on a pre-reduction technology and belongs to the technical field of ferroalloy metallurgy. The method comprises the following steps: uniformly mixing chromite concentrate, coke powder, lime and a silicon dioxide-titanium dioxide nano composite modifier to obtain a mixture; performing solid-state pre-reduction on the mixture in a rotary kiln, and controlling the pre-reduction degree to be 45-70%; loading the pre-reduced material into a submerged-arc furnace, smelting and reducing at 1650-1800 DEG C for 4-8 hours, until slag and iron are separated, and modified high-carbon ferrochrome is obtained. The nano composite modifier is prepared by a sol-gel method, is dispersed at a slag-gold interface during the pre-reduction and smelting processes, promotes uniform nucleation of ferrochrome carbide, and optimizes the microstructure of the molten slag. The application significantly improves the chromium recovery rate, reduces unit power consumption, improves the slag-iron separation effect, and realizes efficient, low-consumption and clean production.

The present application relates to the technical field of papermaking industry, and discloses a kind of papermaking chitosan-based retention and drainage step-by-step regulation method, and the pulp characteristics of different pulp layers in papermaking are differentiated pretreated, such as surface layer, core layer and bottom layer, using high molecular bridging and particle filling step-by-step regulation process, layered precision addition modified chitosan and inorganic particles, supporting online charge closed-loop control, the present application solves the defects that traditional retention system is poor in environmental protection, weak in shear resistance and cannot adapt to the layered needs of high-speed paper machine;With completely biodegradable bio-based materials as the standard, high retention rate and paper performance are considered, the stability of paper machine operation is improved, production consumption is reduced, and the requirements of clean production of papermaking are met.

This invention discloses a composting method and intelligent composting system based on garden waste. The composting method based on garden waste provides a homogeneous and optimized material basis for efficient fermentation through intelligent pretreatment and dynamic formulation of raw materials. During fermentation, a three-dimensional sensor network is deployed and a synchronized digital twin model is constructed. The model is used to predict the future evolution of internal temperature, oxygen, and microbial activity within the compost pile. The degree of composting is intelligently determined by a multi-source information fusion model. The matured material undergoes multi-stage screening to produce a series of products, and a unique traceability code links the entire process to a digital archive, achieving quality traceability. This invention also provides an integrated system for implementing this method. This invention achieves predictive intelligent control and clean production in the composting process, significantly improving processing efficiency, product quality, and resource utilization, while effectively controlling operating costs and environmental pollution.

The application relates to a plating plate making and cleaning device, which comprises a first valve, a second valve, a first nozzle group and a second nozzle group. The first valve comprises a first control structure and controls the water flow into the first nozzle group. The second valve comprises a second control structure and controls the water flow into the second nozzle group. The first nozzle group is composed of at least two nozzles, all the nozzles are a group, and the first nozzle group is located in the middle of the plating plate making and cleaning device. The second nozzle group is composed of two nozzles, which are respectively located at the head and tail of the plating plate making and cleaning device. Through twice utilization of the cleaning sewage, the purposes of clean production, energy saving and emission reduction are achieved. The plating plate making and cleaning device has a great promoting effect on the clean production of the related plating industry.

The application discloses an automatic steaming method and system based on AGV collaborative robots, relates to the technical field of liquor solid-state brewing equipment automation, and realizes real-time sensing of steaming pot opening states through point clouds and thermal imaging, accurate identification of steam dissipation areas, formation of operation constraints, perfect matching of core process requirements of steam detection and steaming, continuous operation beat guarantee through multi-AGV collaborative scheduling, realization of uniform spreading of fermented grains through ballistic solution and two-arm collaborative adjustment, online parameter updating and cyclic material supplementing, further improvement of spreading uniformity, and smooth steam passage in the steaming pot. The automatic steaming operation is completed in an automatic manner, labor intensity is greatly reduced, distillation conditions are stabilized, and the problems of complicated equipment, high land occupation and height requirement, many fault points and high maintenance cost of existing automatic steaming schemes are solved. Without the configuration of a complicated material feeding and conveying system, the fermented grain transfer link is greatly reduced, material leakage and sticking problems are avoided from the root, the production clean production demand is met, and the process flexibility of the production layout is improved.

This invention discloses a rice dumpling processing system based on heat recovery, relating to the field of food processing technology. The invention includes: a cooking pot for steaming and cooling the rice dumplings; a cooling and degreasing tank for storing low-temperature water and forming a cooling circulation loop with the cooking pot; and a high-temperature hot water tank for storing high-temperature water and forming a heating circulation loop with the cooking pot. This invention, through the systematic coupling of three-stage storage tanks and two-stage high-temperature heat pumps, achieves a step-by-step, closed-loop recovery of waste heat from rice dumpling cooling into steaming heat energy, significantly improving overall energy utilization efficiency. Utilizing the cooling and degreasing tank and pipeline design, oil separation and recovery are simultaneously completed during heat transfer, simplifying wastewater treatment processes and achieving clean production. The central controller, based on optimized control logic using temperature thresholds, achieves automated, intelligent, and efficient system operation, ensuring equipment safety and optimal energy efficiency.

The utility model discloses a kind of cooling devices for glass cleaning agent production, including the reaction kettle for producing glass cleaning agent, further include: cooling assembly is fixed in the upper portion of reaction kettle, cooling assembly includes: for the cooling tank of infusion coolant;Fixed in the spiral pipe of cooling tank interior;Output air pipe and input air pipe are fixed in the input end of spiral pipe, reaction kettle output end is connected output air pipe by air pump, and input air pipe other end is connected with the upper portion of reaction kettle and is through-penetrating.This utility model by when glass cleaning agent is mixed in the process in reaction kettle, due to the exothermic reaction between surfactant, solvent and other raw materials and high-speed stirring cause reaction kettle internal temperature to rise, air pump starts after the high-temperature air accumulated in the upper portion of reaction kettle is extracted through the output air pipe connected, and is transported to the spiral pipe set in cooling tank interior, in the process of spiral pipe operation, high-temperature gas is fully heat exchanged with the coolant coated outside when passing through its internal flow.

The utility model discloses large solid waste treatment line. The large solid waste treatment line includes: double shaft breaker, feed chain plate machine, discharge belt conveyor, magnetic separator, packing machine and dust removal part, and the double shaft breaker upper end is equipped with two first dust removal branch pipes, and the crushing host lower extreme is equipped with big material export, the feed chain plate machine enters the feed bin of breaker, and the discharge end of discharge belt conveyor is equipped with the second dust removal branch pipe, and the feed end is located below big material export, the magnetic separator is located in the middle section of discharge belt conveyor, and the rear end of magnetic separator is equipped with the third dust removal branch pipe, and the magnetic separator adsorbs and separates the metal material in heavy material of initial selection, and the packing machine is longitudinally arranged below the discharge end, and the dust removal part is connected with the first dust removal branch pipe on the left end, and the second dust removal branch pipe is communicated on the right end downside, and the third dust removal branch pipe is communicated on the right end rear side, realizes the clean production of treatment line. The utility model has the effect of pre -separation recovery, workshop environment clean, operation safety, reduces the processing cost.