176 results about "Chemical addition" patented technology

The invention is suitable for the technical field of agent adding, and particularly relates to a water treatment agent adding method and system.The method comprises the steps that a technological process diagram of a sewage treatment pond is drawn, a water inlet and a water outlet are found out, online monitoring equipment arranged at the water inlet and the water outlet in advance is used for collecting technological indexes of sewage, and the technological indexes of the sewage are obtained; a water inlet index and a water outlet index are defined; the two ends of the backflow pipeline are located at a water inlet and a water outlet respectively, the deployment mode of verification equipment and an intermediate storage tank in the backflow pipeline is set, the verification equipment is used for reading the concentration parameter of backflow liquid in the intermediate storage tank, the concentration parameter is defined as a verification index, the backflow ratio is set, and the verification result is obtained. And creating a multi-level verification mechanism. By collecting real-time sensing data, predictive accurate dosing can be realized, the use efficiency of the medicament can be optimized, a data basis is provided for advanced adjustment of a dosing system, and the stability of effluent quality is greatly improved.

The invention provides an alginate fiber sanitary towel and a preparation method thereof, and belongs to the technical field of nursing materials. Through the directional water-repellent design of the double-sided reverse osmosis prevention functional layer and in combination with the three-dimensional leakage-proof partition edge structure, the risks of liquid back seepage and side leakage are remarkably reduced, and the use dryness and reliability are improved; the natural antibacterial effect of the alginate fibers is utilized, efficient peculiar smell control is achieved, irritation of traditional chemical bacteriostatic agents to the skin is avoided, and biological safety is guaranteed; the core material adopts alginate fiber renewable resources, the characteristics of high water absorption and degradability of the alginate fiber absorber are combined, the environmental protection sustainability of the product is enhanced, the common problems of reverse osmosis, side leakage, dependence on chemical addition and the like of the sanitary towel are solved, meanwhile, the unification of the protection performance, the health attribute and the sustainability is achieved through material and structure innovation, and the sanitary towel is suitable for being used for sanitary napkins. And a technical normal form capable of being flexibly expanded is provided for the industry.

The invention relates to the technical field of chemical solution treatment, in particular to a device for reducing the viscosity of a slurry solution and a using method thereof.The device for reducing the viscosity of the slurry solution comprises a bottom bearing table, a closed stirring tank and a stirring detection set used for reducing the viscosity of the slurry solution. Slurry is stirred through the stirring assembly in the stirring detection group, a physical treatment mode is adopted, additional chemical substances do not need to be added, interference of additional components on slurry components is avoided, and the use and maintenance cost of chemical additives is reduced; the slurry in treatment is periodically detected through a detection assembly in the stirring detection group, the slurry reaching the expected viscosity is found in time, the overall production efficiency is improved while the production cost is reduced, dual detection is performed on the neutralized slurry through mutual cooperation of the detection assembly and the central control system, and the production efficiency is improved. And the viscosity of the discharged slurry is guaranteed.

A wastewater system with high recyclability may include one or more mechanical or membrane filtration technologies. Process waste streams may be processed through a variety of processing units to remove contaminants without or with limited additional chemical additives, thereby forming a near-zero or zero liquid discharge wastewater system.

The invention provides a method for detecting the content of elements in carbonized resin. The method comprises the steps of resin pretreatment, instrument tuning, standard curve drawing, sample detection and the like. The method comprises the following steps: firstly, transferring a certain amount of dry carbonized resin into a cleaned PFA digestion tank, adding high-purity mixed acid, setting a segmented heating program to start microwave digestion, cooling to room temperature after digestion is completed, adding a proper amount of ultrapure water to dilute a digestion solution, and adding an internal standard solution and a chemical additive to obtain a to-be-detected sample solution; preparing a multi-element mixed standard solution according to the sample element types, adding the standard solution into the sample solution, and measuring the signal intensity ratio R of the to-be-measured element to the internal standard in each solution; and drawing a standard curve by taking the labeling concentration as a horizontal coordinate and R as a vertical coordinate, correcting the standard curve, and detecting the sample to be detected. The method is used for detecting the content of elements in carbonized resin, the carbonized resin is digested through microwaves, and the obtained solution is clear and can be directly subjected to ICP-OES (Inductively Coupled Plasma-Optical Emission Spectrometer) detection.

The invention discloses an intelligent quintuplet cooperative plasma self-purification robot long-term storage system and a self-adaptive disinfection control method. According to the system, cold plasma, ozone, chlorine dioxide, self-generated nitric oxide and a charge self-purification jump effect are fused, and a dynamic self-purification system with an electric field-gas field-chemical field-intelligent field-thermal field five-dimensional synergistic energy field is constructed. The robot adopts a three-section structural layout and a multi-mode self-adaptive propulsion mechanism, environmental parameters are sensed through AI, discharge power and oxidant release are intelligently regulated and controlled, and precise sterilization, toxicity reduction and mildew prevention in a multi-medium environment are achieved. The system can generate various high-energy active species containing. OH, O, NO, ClO, ONOO and the like, chain splitting decomposition and oxidation mineralization are carried out on mold spores, bacterial cells, aflatoxin and the like, the sterilization rate reaches 99.995%, and the toxin degradation rate exceeds 98%. The system has the characteristics of no residue, low energy consumption, long-acting self-maintenance and the like, is suitable for multiple scenes of grain storage, traditional Chinese medicinal materials, cold chains, farmland, public health and the like, and realizes an intelligent, continuous and chemical-additive-free green storage and dynamic purification system.

An electrochemical device is disclosed that includes an ionically conducting electrolyte, a first electrode and a second electrode. The electrodes are in contact with the ionically conducting electrolyte, and a housing encloses the electrodes and the ionically conducting electrolyte. The ionically conducting electrolyte comprises a liquefied gas solvent, an ester solvent, and a salt. The liquefied gas solvent has a vapor pressure above 100 kPa at a temperature of 293.15K. The salt and ester are soluble in the liquefied gas solvent such that the ionically conducting electrolyte is a liquid under pressure.

The invention belongs to the technical field of cosmetics, and discloses a preparation process of a composition with an anti-wrinkle effect and application of the composition in cosmetics, the composition comprises a mixing tank, and the top of the mixing tank is provided with a tank cover; the discharging pipe is connected to the bottom of the mixing tank; the first driving part is connected to the top of the tank cover, the output end of the first driving part is connected with a rotating shaft, and a first cleaning assembly is arranged in the bottom end of the rotating shaft; the stirring rod is connected to the outer side of the rotating shaft, and stirring assemblies are arranged on the outer side of the stirring rod and the bottom of the rotating shaft. Through natural plant extracts and bioactive components, skin barriers are repaired while deep moisturizing and skin color brightening are achieved, the problem of dry skin is solved, the elasticity and compactness of the skin are improved, fine lines and wrinkles are reduced, skin aging is delayed, the antioxidant capacity is high, and compared with other anti-wrinkle products, chemical additives harmful to the skin are not contained; and the formula is low in cost and suitable for large-scale production.

The invention relates to the technical field of sewage / black and odorous water body treatment, in particular to an efficient total phosphorus filtering device and a control method thereof. The efficient total phosphorus filtering device comprises a filter element which comprises an outer PP crude fiber filter material layer, a middle PP fine fiber gradient layer and an inner PP superfine fiber densified layer which are arranged in sequence; wherein the porosity of the outer-layer PP crude fiber filter material is 80-90%, and the aperture of the outer-layer PP crude fiber filter material is 0.9-1.0 [mu] m; the porosity of the middle PP fine fiber gradient layer is 78%-65%, and the aperture of the middle PP fine fiber gradient layer is 0.8-0.5 [mu] m; and the porosity of the inner PP superfine fiber densified layer is 40-60%, and the aperture of the inner PP superfine fiber densified layer is 0.22-0.4 mu m. According to the filter element provided by the invention, through pure physical structure innovation, the colloidal phosphorus rejection rate can be more than 90% (0.22-1 mu m) on the premise of not using chemical modification; furthermore, the efficient total phosphorus filtering device provided by the invention realizes zero chemical addition, and creates a new green water treatment path.

The invention relates to the technical field of food processing, and discloses a tuna sausage which comprises the following components in parts by weight. The tuna sausage is prepared from, by weight, 40-50 parts of cooked tuna, 15-18 parts of chicken breast, 19-23 parts of chicken thigh, 0.8-1.0 part of edible salt, 0.001-0.003 part of sodium nitrite, 0.3-0.4 part of composite phosphate, 2.5-2.7 parts of erythritol and 8-10 parts of ice water, the prepared tuna sausage is pure in flavor, the flavor is mildly removed through precise matching, and the original delicate flavor of tuna is perfectly reserved. The taste is dominated by meat feeling, and the texture is elastic and juicy and is free of powder texture and dry firewood feeling. The formula is simple, chemical additives are greatly reduced, and the product conforms to the trend of cleaning labels and is a high-quality product with natural flavor, excellent taste and health attribute.

The present application relates to the technical field of petroleum geological exploration, and is an automatic control and adjusting device for adding agent to crude oil pipeline and a use method thereof, which comprises a controller, a plunger large pump, a plunger small pump, an agent tank and a crude oil pipeline. First, according to the compatibility test in the laboratory, the application experience data, the concentration of the added agent and the effective concentration ω of the agent provided by the manufacturer are set on the controller as needed. Then, the controller obtains the real-time data of the crude oil flowmeter on the crude oil pipeline online, and the injection amount Q of the chemical additive is calculated by using a formula. The injection amount Q of the chemical additive is input, the controller is automatically controlled and operated, and the intelligent injection of the agent into the crude oil pipeline is completed. The present application monitors the basic flow of the crude oil pipeline online through the controller, automatically controls the start and stop of the agent pump and the amount of the added agent according to the internal calculation of the controller based on the set concentration, improves the precision of the added agent, and reduces the labor intensity of the staff and the safety risk in the operation process.

The invention belongs to the technical field of papermaking technologies, and particularly relates to a glass packing paper anti-counterfeiting mark preparation process and method, and the glass packing paper anti-counterfeiting mark preparation process and method comprises the following steps: in a forming stage when the dehydration rate of wet paper sheets at a net part of a paper machine is 40-60%, vertically spraying 0.1-0.3 MPa high-pressure clean air flow at 90 + / -5 degrees, impacting the unformed paper pulp to directionally rearrange local fibers, and drying to form an anti-counterfeiting mark which can be distinguished by naked eyes; the method further comprises an equipment system of double-high-pressure air pump pressurization, two-stage 100-mesh filtering, ceramic air needle jetting and pressure regulating valve parameter locking, and batch customization control over the marking width, the position and the display degree is achieved. According to the glass packing paper anti-counterfeiting mark preparation technology and method, no chemical additive is added in the whole process, it is detected that the hygroscopicity, mildew-proof performance and anti-static performance of the glass packing paper are consistent with those of a conventional product, the daily average capacity of a single production line exceeds 50 tons, the anti-counterfeiting mark counterfeiting period is prolonged to 6 months or above, and the technology and method are suitable for large-scale anti-counterfeiting production of high-end glass packing paper.

The invention discloses a high-acidity complex flow state multi-parameter on-line monitoring system, an acid mixing vehicle and a method.The system comprises an acid mixing tank, the acid mixing tank is communicated with a powder pipeline, an acid pipeline, a clear water pipeline, a liquid medicine pipeline and a discharge pipeline, and the powder pipeline, the acid pipeline, the clear water pipeline, the liquid medicine pipeline and the discharge pipeline are all provided with monitoring devices; and the monitoring device is electrically connected with the intelligent control system. The device can record the instantaneous quantity and the cumulant quantity of the acid liquor, the clear water and the chemical additive on line in real time, generate an operation curve and a report at the same time, and can monitor the viscosity, the density and the acidity of the prepared acid liquor on line so as to confirm whether the quality of the acid liquor is qualified or not. According to the invention, monitoring data can be archived, later review and tracing are facilitated, manual sampling analysis is not needed, and potential safety hazards are eliminated.

The invention relates to the technical field of wine brewing, in particular to a method for producing alkalescent white wine by adopting a high-magnetization natural physical method for treatment. The feed comprises sorghum, purslane-longan composite powder, dictyophora indusiata mycelium powder, olivine particles and clove powder. In the production method of the alkalescent white spirit treated by the high-magnetization natural physical method, the use of chemical additives in the traditional process is avoided through the application of the whole-process high-magnetization natural physical method; substance conversion and molecular action of each link are regulated and controlled through a magnetic field, the taste defects of pungency, acerbity and the like caused by unbalance of flavor substances of baijiu in a traditional process are fundamentally improved, the pH value of a weakly alkaline baijiu body can be kept stable through control of the magnetic field on the mineral substance release rate, directional association of the flavor substances and regulation of microbial metabolism, and the taste of the baijiu is improved. The richness of the flavor of the liquor body and the combination stability of the mineral substances and the organic acid are improved, so that the balance of the taste of the liquor is improved.

This application relates to the field of building water supply and drainage technology, and discloses a building water supply and drainage device with a water collection and drainage mechanism, including a treatment tank. A hexagonal box is fixedly connected to the top of the treatment tank for collecting water flow. Multiple connecting pipe water passage mechanisms are fixedly connected to the outer periphery of the hexagonal box. A water treatment mechanism is installed inside the treatment tank for treating the collected water. A chemical addition mechanism is fixedly connected to the outside of the treatment tank for adding water treatment chemicals. A butterfly valve is fixedly connected to the outside of the treatment tank for convenient discharge of the treated water. Through the cooperation of the water treatment mechanism and the chemical addition mechanism, the collected building water can be treated, and the treated water can be used directly without further water treatment by a separate water treatment system. Therefore, the functionality of the water supply and drainage device is increased, the applicability of the collected water is expanded, and the practicality of the device is improved.

This invention relates to the field of water purification technology, specifically providing a water purification device aimed at solving the problems of low cleaning efficiency, poor cleaning effect, and poor user experience caused by the residue of a small amount of cleaning agent in existing water purification devices. The water purification device of this application includes a reverse osmosis membrane filter element, a cleaning component, a circulation pipe, and a pure water component. The inlet and wastewater ends of the cleaning component and the reverse osmosis membrane filter element are sequentially connected to form a cleaning circuit. The water purification device can drive the cleaning liquid to circulate within the cleaning circuit and discharge the pure water end of the reverse osmosis membrane filter element to the outside of the filter element. By circulating the cleaning liquid within the cleaning circuit to repeatedly flush the reverse osmosis membrane filter element, the cleaning time is effectively shortened, the cleaning effect is improved, and the discharge of pure water containing a small amount of cleaning agent further contributes to achieving zero pollution and zero chemical addition, greatly enhancing the user experience.

The present invention patent application relates to a modular saturation and dissolution system (1) for controlled generation of nanobubbles in fluid, applicable in the fields of water treatment, biotechnology, medicine, and industrial and environmental processes. The present invention comprises a modular structure (2) configured with multiple flow modulation barriers (22), (23) and (24) and microfluidic devices (25A), (25B) and (25C) provided with micromillimetric perforations (P1), (P2) and (P3) and / or grooves (R1), (R2) and (R3), which allow precise control of the generation and distribution of nanobubbles in different stages of the process. The saturation and dissolution system (1) includes a cylindrical casing (7) that houses the nanobubble generation chamber (10) and incorporates a gas introduction and diffusion device (13) having perforated and / or grooved surfaces (16) and (16A), facilitating the uniform dispersion of the gas in the fluid. The present invention promotes greater efficiency in the dissolution of gases, eliminating the need for movable components such as rotors or stators, and the use of chemical additives, providing a versatile and sustainable solution with the flexibility to be applied in a variety of industrial and operational configurations, ensuring greater efficiency in treatment processes and an increase in the contact area in order to optimize gas dissolution rates.

The invention discloses a lactobacillus plantarum LF001, the preservation number of the lactobacillus plantarum LF001 is GDMCC No.67171, and the lactobacillus plantarum LF001 integrates the functions of a high-efficiency fermentation agent and a high-efficiency biological preservative into a whole. According to the method, conventional lactic acid fermentation can be completed, the novel performance of high-yield antibacterial peptide can be achieved, broad-spectrum pathogenic bacteria and putrefying bacteria can be actively and effectively inhibited, the preservative and fresh-keeping effect which can only be achieved by common lactic acid bacteria and chemical preservatives / exogenous bacteriocin in the past can be achieved by using a single LF001 strain, the process is simplified, the cost is reduced, and the method is suitable for industrial production. And real'no chemical addition 'is realized.

This invention discloses a kitten food without palatability enhancers and its preparation method, relating to the field of pet food technology. It comprises the following components: polypeptide chicken meal, soy protein peptides, gluten hydrolysate, lactoferrin, astragalus extract, yam powder, rosemary oil, resveratrol, tributyrate, and rice. By adding substances containing small peptides and plant extracts to the kitten food, this invention provides the body with a large amount of high-quality animal protein without adding any chemically synthesized palatability enhancers, preservatives, or other chemical additives. This effectively promotes the body's decomposition and metabolism of nutrients, promotes the growth of kittens, and also enhances the body's antioxidant capacity and reduces the occurrence of diarrhea.

The invention relates to an energy substrate obtained by steam cracking of a biomass. More specifically, the invention relates to a steam-cracked biomass in the form of dry powder and devoid of any chemical additive, to a method for the production thereof and to the use thereof as a substrate for green chemistry and biotechnological methods such as enzymatic hydrolysis and fermentation.

The utility model relates to a treatment system for removing antimony pollution in water through iron-manganese-carbon composite filler micro-electrolysis. The method is suitable for antimony pollution treatment. According to the technical scheme, the treatment system for removing antimony pollution in water through iron-manganese-carbon composite filler micro-electrolysis is characterized by comprising a reaction container, a bearing plate is arranged at the bottom of the reaction container, water distribution holes are evenly distributed in the bearing plate, a water distribution area is formed below the bearing plate, and an iron-manganese-carbon composite filler layer and a ceramsite layer are sequentially arranged above the bearing plate; a water inlet communicated with the water distribution area in the reaction container and a water outlet positioned above the ceramsite layer are formed in the side wall of the reaction container; the antimony-containing wastewater storage tank is communicated with the water inlet of the reaction container through a water conveying pipeline, and a peristaltic pump is mounted on the water conveying pipeline. According to the device disclosed by the utility model, the iron-manganese composite double hydroxides can be formed under the condition of non-chemical addition on the premise of no power supply and no energy consumption, so that the Sb (V) removal effect of the traditional micro-electrolysis reaction is improved.

The present application relates to the field of food technology, and discloses a low-bitterness wolfberry original syrup and a preparation process thereof. The original syrup is prepared from the following raw materials in parts by weight: 80-90 parts of fresh wolfberry fruit, 5-10 parts of germinated fava, 5-10 parts of germinated barley, 0.3-0.6 parts of medium-chain triglyceride, 1.0-2.0 parts of concentrated red date juice, 0.05-0.1 parts of ascorbic acid, 0.02-0.05 parts of citric acid, and 0.01-0.05 parts of saltwort extract. The present application efficiently reduces the bitterness of the wolfberry original syrup through a full natural biological transformation pathway without adding exogenous enzyme preparations or introducing chemical adsorbents, fundamentally avoiding chemical addition and clean label problems, and simultaneously achieving the synchronous transformation of various types of bitter substances in wolfberry. The preparation process of the present application completely retains the heat-sensitive functional factors and fresh fruit aroma of wolfberry, and the nutritional integrity and flavor reduction degree of the product are significantly better than those of similar products on the market.

The invention discloses a preparation method of an antibacterial and mildew-proof coating for the inner wall of a sterile bottle, which comprises the following steps: thoroughly cleaning and disinfecting the sterile bottle through ultrasonic cleaning and high-temperature steam sterilization to ensure that no microbial residue exists in the bottle; activating the inner wall of the bottle by adopting a plasma cleaning machine; then, polylactic acid modified ovalbumin is dissolved in water, a glutamine transaminase cross-linking agent and a chitosan polymer are sequentially added to prepare a modified protein solution, and the mixture not only has excellent biocompatibility and antibacterial performance, but also can effectively prevent bacteria and mould from breeding; filtering the prepared solution, injecting the filtered solution into an activated sterile bottle, uniformly covering the inner wall of the bottle with the solution by using a spin coater, and carrying out curing treatment in a constant-temperature oven to finally form an antibacterial and mildew-proof coating; according to the method, the toxicity problem caused by chemical additives is avoided, meanwhile, the stability and durability of the coating are improved, the service life of the sterile bottle is greatly prolonged, and the protection performance of the sterile bottle is enhanced.

The invention relates to the technical field of food processing, in particular to a preparation method of low-GI resistant rice flour and the low-GI resistant rice flour. The composite rice comprises composite rice, konjac glucomannan, tea polyphenol, whey protein and chitosan, in the preparation method of the low-GI resistant rice flour and the low-GI resistant rice flour, a multi-source resistant starch complex is constructed by compounding composite rice, and an antioxidant molecular barrier and a biological protective film are formed by utilizing the synergistic effect of natural components such as tea polyphenol, chitosan and whey protein, so that the low-GI resistant rice flour is prepared. The oxidative degradation of the resistant starch and the breeding of microorganisms in the storage process can be effectively inhibited without adding chemical preservatives, and meanwhile, the invasion of moisture and oxygen is blocked, so that the potential safety hazard and flavor influence caused by chemical additives in the traditional method are solved, and the stability of the resistant starch content and the GI value in the storage process of the product is improved; the damage of chemical preservatives to the flavor and the taste of the rice noodles is also avoided, so that the naturalness and the quality safety of the product are improved.

The present invention discloses a shower head system. The system comprises a shower head housing comprising a proximal end and a distal end. The proximal end comprises one or more water inlet apertures and the distal end comprises one or more water outlet apertures. The water inlet apertures are in fluid communication with a water source to receive raw water. The system comprises a shower head conduit in fluid communication with the water inlet apertures and the water outlet apertures. The shower head conduit comprises at least one chemical addition aperture. The system comprises a chemical storage system comprising a chemical reservoir comprising chemical outlet apertures and a chemical conduit. The chemical reservoir is configured to store chemical additive. The chemical conduit is in fluid communication with the chemical outlet apertures and the chemical addition aperture to add chemical additive to the water stream to adjust pH level.

The invention belongs to the technical field of oil and gas field chemical additives, and particularly relates to a green retarder system and a preparation method thereof. The biological retarder system comprises a deep eutectic solvent and diluted hydrochloric acid, wherein the deep eutectic solvent is prepared by heating choline chloride and malic acid according to a molar ratio of 1: 1. The invention also provides a preparation method of the green retarder system, which comprises the following steps: (1) preparing a deep eutectic solvent (DES): heating choline chloride and malic acid according to a molar ratio of 1: 1 to prepare the deep eutectic solvent; (2) preparing diluted hydrochloric acid: preparing an HCl solution with the mass fraction of 10% for later use; and (3) preparing a green retarder system: mixing the deep eutectic solvent and diluted hydrochloric acid according to a certain proportion to obtain the green retarder system. The retarder system taking the choline chloride-based deep eutectic solvent (DES) as a core component is used for regulating and controlling the acid rock reaction rate, protecting the low-permeability sandstone reservoir and improving the acidification operation efficiency.

The utility model discloses a high-density clarification device which comprises a clarification device main body and an inclined pipe, a reaction barrel is arranged on the inner side of the clarification device main body, a water inlet pipe is communicated with the reaction barrel, a return pipe is communicated with the water inlet pipe, water distributors are arranged on the periphery of the reaction barrel, and the water distributors are communicated with the inclined pipe. A flow guide cone is arranged in the clarification device main body; a water collecting tank is arranged above the clarification device main body, the side surface of the water collecting tank is communicated with a water outlet pipe, a sludge collecting hopper is arranged at the bottom of the clarification device main body, and the side surface of the sludge collecting hopper is communicated with a sludge emptying pipe. The optimized clarification device disclosed by the utility model ensures that raw water is fully contacted and collided in the clarification device after being added with chemicals, is beneficial to the flocculent precipitation effect of low-temperature and low-turbidity water, improves the flocculation and mud-water separation efficiency, and effectively reduces the effluent turbidity of the clarification device.

The invention discloses a muck hanging and transporting device for construction. According to the muck hanging and transporting device, a soil body conveying assembly, a soil body stirring and overturning assembly, a microwave heating evaporation unit, a ventilation evaporation unit, a temperature and humidity monitoring unit and a functional assembly are arranged in a hanging and transporting machine body; the soil body conveying assembly comprises a soil body feeding conveying assembly and a soil body discharging conveying assembly. The soil body stirring and overturning assembly comprises a functional cavity, a connecting and fixing piece, a driving motor, a transmission shaft, a transmission gear, a gear ring, a protruding edge, a bottom automatic opening and closing discharging opening and a position sensor. The microwave generation device is used for heating water in the muck from inside to outside, water evaporation is accelerated, the dispersing and throwing effects in the stirring and overturning processes are combined, meanwhile, external dry air is adopted for ventilation of the muck, and water in the muck is further accelerated. According to the device and the method, the high-water-content muck can be more conveniently and rapidly drained, the occupied construction space is small, and no extra chemical additive is needed.

The invention relates to the technical field of food processing and production, in particular to a production method for prolonging the shelf life of hot slaughtered medium-temperature meat, which comprises the following steps: selecting hot slaughtered livestock and poultry meat, treating, soaking a meat blank in a citric acid solution, rinsing after soaking, and draining to obtain a pretreated meat blank; preparing a preservative solution, soaking the pretreated meat blank in the preservative solution, and stirring for multiple times during soaking; after soaking, taking out and draining redundant solution on the surface to obtain a soaked meat blank; adding a pickling material for pickling to obtain a marinated meat blank; cooling the marinated meat blank, keeping the air speed and the relative humidity of a cooling chamber, reducing the central temperature of the meat blank to a target temperature at a certain cooling rate, preparing a semi-finished product, and putting the semi-finished product into a barrier packaging film for sealing treatment to prepare a finished product. The citric acid is used for pretreatment, and the staged temperature control cooling technology is adopted, so that the shelf life is remarkably prolonged, and meanwhile, the safety risk and flavor damage caused by chemical additives are avoided.