41results about How to "Achieve purification effect" patented technology

This application discloses a method for preparing ultra-high purity citric acid monohydrate based on supercritical CO2, belonging to the field of citric acid preparation technology. The method includes the following steps: dissolving citric acid monohydrate in an organic solvent to prepare a citric acid solution; spraying the citric acid solution into a supercritical CO2 environment to crystallize the citric acid using the supercritical anti-solvent effect; performing dynamic washing with pure supercritical CO2; and obtaining ultra-high purity citric acid monohydrate crystals after depressurization and drying. The citric acid monohydrate product prepared by this method has high purity, high light transmittance, low total metal ion content, controllable crystal habit, and low organic solvent residue, meeting the stringent requirements of high-end applications such as electronic and pharmaceutical grades.

The utility model discloses an automatic smoke purifying and collecting device for metal processing and welding, which comprises a machine body, and a decomposition bin, an adsorption bin and a filtering bin which are uniformly arranged in the machine body through partition plates, and further comprises a smoke collecting component, the smoke collecting assembly comprises an L-shaped pipeline installed on the top of the machine body through a connecting base and a smoke sucking cover arranged at the bottom of one end of the L-shaped pipeline through a telescopic corrugated pipe. The filter box is arranged in the filter bin and below the exhaust hood; the adsorption box is arranged in the adsorption bin below the filtering bin; and the catalysis box is arranged in the decomposition bin below the adsorption bin. Through the arrangement of the L-shaped pipeline and the smoke sucking cover in the smoke collecting assembly, smoke generated in the welding process can be effectively sucked in, and diffusion of the smoke in the working environment is avoided. The servo motor drives the L-shaped pipeline to rotate, and flexible adjustment of the smoke suction hood is achieved through meshing of the driving gear and the gear ring.

The utility model discloses a filtering structure of a closed fish tank, which comprises a tank body, a filtering assembly and a water pump assembly, specifically, the filtering assembly comprises a filtering support and a bacterium cultivation box, the filtering support can be installed on the tank body, a filtering groove is formed in the filtering support, a plurality of filtering holes are formed in the bottom wall of the filtering groove, the bacterium cultivation box is provided with bacterium cultivation materials, and the bacterium cultivation box can be arranged at the bottom end of the filtering support and located below the filtering groove. The plurality of filtering holes are used for guiding water flow into the bacterium cultivation box; the water pump assembly comprises a water pump and a conducting pipe, the water pump can be installed on the cylinder body, then one end of the conducting pipe is communicated with the water pump, and the other end of the conducting pipe guides water to the filtering groove. According to the filtering structure of the closed type fish tank, water in the fish tank is filtered through the filtering groove, the filtered water passes through the bacteria cultivation box, then passes through the water baffle and is finally guided into the fish tank so that filtering and full degradation of circulating water can be achieved, and the water quality can be improved.

This invention relates to the field of rainwater harvesting technology for sponge campuses, and discloses a rainwater harvesting device and its usage method for sponge campuses. The device includes a buried pipe, a connecting pipe, and a collection box connected in sequence. The top of the buried pipe has an arc-shaped, elastic, permeable shell that extends above the ground. Inside the shell is a pneumatic self-cleaning structure composed of a sliding groove, piston shaft, sliding plate, spring, and air holes. The bottom of the inner shell has a pressurized flushing component. The connecting pipe has a worm gear driven crushing component. The collection box is divided into an interception chamber and a sedimentation chamber by an inclined filter screen. This invention removes surface debris by pressing down the permeable shell, combined with pneumatic pipe unblocking, in-situ impurity crushing, and rainwater sedimentation and grading treatment, ensuring rainwater harvesting efficiency, reducing operation and maintenance difficulty and costs, realizing rainwater resource utilization, and meeting the needs of sponge campus construction. It solves the problems of existing flat-grid rainwater inlets in campuses being easily blocked by fallen leaves and other debris, large impurities causing pipe siltation, and high daily maintenance costs.

The invention belongs to the technical field of spinning, particularly relates to a high-strength polyethylene gel spinning system white oil deep purification and cyclic utilization process, and aims to solve the problems of incomplete purification, low cyclic utilization rate, unstable reuse quality, large adsorbent loss and high energy consumption in the prior art, and provides the following scheme: the method comprises the following steps: S1, collecting and pretreating crude white oil; the method comprises the following steps: collecting crude white oil generated in a high-strength polyethylene gel spinning extraction section, centrifugal deoiling and dry tail gas condensation, collecting the crude white oil into a crude white oil storage tank, adding a pretreatment aid into the crude white oil, and realizing deep purification and efficient circulation of the high-strength polyethylene gel spinning waste white oil through cooperation of a five-stage closed-loop process and five sets of customized formulas in a nitrogen protection atmosphere. The adsorption efficiency is improved by more than 35%, the index is close to that of fresh white oil, the cyclic utilization rate of the white oil is more than or equal to 95%, the consumption of each ton of fibers is reduced to below 1kg from 20kg, the hazardous waste output can be greatly reduced by more than 85% by the process, and VOC (volatile organic compounds) can be discharged after reaching the standard.

The application relates to a storage room system and method suitable for island material storage and seawater desalination, and belongs to the island life health field. In view of the problems of food perishability and freshwater shortage on islands, the application provides a storage room system suitable for island material storage and seawater desalination, which mainly comprises a refrigeration system, a plasma system and a seawater desalination system. The application realizes refrigeration and cooling of the storage space and provides a relatively suitable working temperature for the coupled plasma generating device by extracting low-temperature seawater to cool the refrigerant and arranging the evaporation pipeline around the storage room. Fresh water is prepared by utilizing the high humidity of island air, the air is heated through the convection effect of the compressor, the filtered air is humidified to the saturated state through the spraying device, and the fresh water is prepared through condensation. The application fully adapts to local conditions, utilizes the climate advantages and unique renewable energy of the South China Sea islands, and practically solves the actual needs of life.

The application discloses a kind of microbial complex bacterial population, microbial inoculum and application thereof, and is related to microorganism and application technical field.The microbial complex bacterial population includes Acinetobacter sichuanensis LHH12, Pseudomonas songnenensis SJ2-76, Diaphorobacter nitroreducens SYY4 and Thauera aminoaromatica SJ2-12.The microorganism for constructing complex bacterial population is obtained from semi-coke wastewater, and has good phenol tolerance and chemical oxygen demand (COD) degradation capacity, and can be used for purifying high-phenol wastewater, biological denitrification and phosphorus removal and degrading COD.The microbial complex bacterial population of the application can effectively improve the COD degradation rate in phenol ammonia wastewater and effectively reduce the treatment cost of high-phenol ammonia wastewater such as semi-coke without changing the original microbial community composition of wastewater through the synergistic effect between strains, which has great potential for promoting low-carbon green and sustainable development of coal chemical industry.

This application relates to the field of condensate collection and reuse, and in particular to a condensate collection and reuse device, comprising a condensate collection system for receiving steam from the steam outlet of a dyeing and drying equipment and condensing the received steam to form condensate; a multi-stage recovery tank, including a primary recovery tank, a secondary recovery tank, and a tertiary recovery tank connected in sequence, with the output end of the condensate collection system connected to the primary recovery tank; a storage tank for storing the condensate; and a pumping mechanism for pumping the condensate from the tertiary recovery tank to the storage tank. This application has the effect of reducing water waste and environmental pollution.

The present application relates to natural rubber primary processing equipment technical field, specifically to a kind of natural rubber crepe machine, including rack, transmission system, first roller group and second roller group along vertical series connection, roller cooling system, doctor system and discharge separation system.The first driving roller shaft end of first roller group is equipped with sprocket, is driven connection with second roller group by chain, so that a motor synchronously drives four roller operation, material is sequentially completed rough dehydration and fine dehydration from top to bottom.Four rollers are all hollow structure with spiral flow guide groove inside, and two ends hollow shaft head are connected into cooling system by three-section rotary joint formed by external connector, connecting shaft and internal connector, to form forced circulation cooling loop to control roller surface temperature.The present application is compact in structure, and single machine can realize continuous twice dehydration and automatic solid-liquid separation, suitable for natural rubber forest and rubber collecting station primary operation.

The utility model relates to screening machine technical field discloses a novel double -deck screening machine, including the chassis, the chassis upper surface fixedly connected with support no.

This invention relates to the field of petroleum refining and discloses a method and system for separating and purifying hydrogen from dry gas. The method comprises the following steps: (1) subjecting the dry gas feedstock to alkaline absorption to obtain pretreated gas; (2) subjecting the pretreated gas to VOC membrane separation after pressurization, and subjecting the permeate gas to shallow cold oil absorption to obtain C2 and above organic components; (3) subjecting the permeate gas obtained from the VOC membrane separation to one or more stages of hydrogen membrane separation, obtaining crude hydrogen with a purity of 95% or higher on the permeate side, and refluxing the permeate gas for VOC membrane separation again; (4) subjecting the crude hydrogen to PSA pressure swing adsorption to obtain high-purity hydrogen with a purity of 99.95% or higher. This invention cleverly couples alkaline absorption technology, multiple membrane separation technologies, shallow cold oil absorption technology, and PSA pressure swing adsorption technology, which can both purify hydrogen and recover organic matter to obtain high-purity hydrogen.

The invention discloses a graded absorption and purity improvement coupling system for ester exchange reaction ethylene glycol extraction liquid, and relates to the technical field of separation and purification of biological medicine chemical raw materials. Comprising an extraction liquid pretreatment module, a countercurrent grading absorption module, a purity improvement coupling module, a solvent recycling module and an environment-friendly terminal treatment module which are sequentially connected along the material flow direction, and an intelligent cooperative control module for monitoring and optimizing the whole system. In the invention, in the aspect of separation and purification, the system adopts a light-to-heavy gradient absorption strategy and a rectification-membrane separation coupling process, so that the thermodynamic limitation of a traditional single separation means is broken through, and high-precision purification of a carboxylic ester product and efficient selective recovery of ethylene glycol can be synchronously realized; therefore, the final purity of the target product is greatly improved, the target product can meet the harsh standard in the high-end application field, and the volatilization loss of light components and the entrainment of ethylene glycol are remarkably reduced by optimizing the mass transfer process.

A kind of heat conducting oil multistage fractional distillation regenerating device belongs to heat conducting oil regenerating technical field.The heat conducting oil regenerating technical field is by heat oil heat exchanger, distillation still, condenser, heavy component collection tank, first finished oil tank, second finished oil tank, low boiling point material tank, gear pump, diaphragm pump, filter press, vacuum pump condenser, vacuum pump inlet buffer tank, second Roots vacuum pump, first Roots vacuum pump, hot oil flow regulating valve, hot oil circulating pump, cooling water tank, first filter, second filter, first Laval nozzle, second Laval nozzle, first jet pump, second jet pump and tin bucket or ton bucket are constituted.The utility model can realize the purification and regeneration of deteriorated heat conducting oil quickly, further through the setting and control of digital instrument, the monitoring sensitivity and accuracy of process parameter can be improved;So that batch purification is more efficient, fast, convenient, in the process of heat conducting oil regeneration, device does not need to stop, improves production stability and the operability of future maintenance, maintenance work.

The utility model provides an intelligent dredging device for a water sump of an excavation working face, which comprises a box body, a first-stage sediment box, a second-stage sediment box, a first-stage sediment box, a second-stage sediment box and a second-stage sediment box, the drain hole is formed in the upper section of the partition plate; the slurry pump is arranged at the bottom of the primary settling tank, the output end of the slurry pump is connected with a slurry pumping and discharging pipeline, and the slurry pumping and discharging pipeline extends to the outside of the primary settling tank; and the sonic sensor is arranged on the inner wall of the primary settling tank. The full-automatic linkage type dredging device can achieve full-automatic linkage type dredging.

The application provides a method for preparing graphene from graphite leaching residue of waste lithium ion batteries, comprising the following steps: obtaining graphite leaching residue by acid leaching of black powder recovered from waste lithium ion batteries; dispersing the graphite leaching residue in an electrolyte, and sequentially performing first electrolysis and second electrolysis; the voltage of the first electrolysis is lower than that of the second electrolysis; taking the upper electrolyte, and performing centrifugal treatment to obtain upper suspension and filter residue; diluting the upper suspension, and performing hydrothermal reaction; and separating and drying the reaction product to obtain reduced graphene oxide. The method has the advantages of simple process, environmental friendliness, low cost, high product added value, high-value recovery of graphite leaching residue, preparation of high-quality reduced graphene oxide without additional addition of oxidizing agents, and excellent application prospect.

The application provides a method and system for removing high-concentration complex cyanide in gold extraction wastewater, and relates to the technical field of sewage treatment. The method comprises the following steps: adjusting the pH of the gold extraction wastewater to 8-10 to obtain pretreated wastewater; adding a cobalt ferrite particle catalyst to the pretreated wastewater and introducing ozone to obtain oxidized effluent; dividing the oxidized effluent into solution A and solution B according to the volume ratio, oxidizing solution A under the condition of low dissolved oxygen by using anaerobic ammonia oxidation bacteria, mixing the oxidized solution A with untreated solution B to obtain a mixed solution; and reacting the mixed solution with porous adsorption material and anaerobic ammonia oxidation bacteria, and recycling the cobalt ferrite particle catalyst for circulation. The method used by the application can effectively improve the removal rate of high-concentration complex cyanide, realizes complete mineralization of the complex cyanide, solves the core problem of difficult degradation of the complex cyanide, has strong load resistance, is simple to operate, and has good adaptability.

The utility model discloses a container cold plate device with a filter structure, which relates to the technical field of containers, and comprises a container body, a mounting groove is arranged on the inner side of the container body, a filter mechanism is arranged in the mounting groove, the filter mechanism comprises a fixed column fixedly connected with the inside of the mounting groove, and the fixed column is fixedly connected with the inside of the mounting groove. A buckle is fixedly connected to one side of the fixing column, a limiting rod is connected to one side of the buckle in a clamped mode, and a sliding sleeve is fixedly connected to one end of the limiting rod. According to the container cold plate device, the fixing column, the buckle, the fixing shell, the sliding rod, the spring, the sliding sleeve, the fastening column, the filtering equipment and the limiting rod are used in cooperation, the sliding sleeve and the sliding rod are in sliding fit, the elastic reset effect of the spring is combined, and therefore clamping operation of the limiting rod and the buckle is flexible and controllable; refrigerated air can be filtered, the situation that fresh goods go bad and go mouldy due to the fact that germs remain in the refrigerated air is prevented, and the refrigerated air is filtered.

The utility model discloses an integrated multi-filtration electro-adsorption wastewater treatment device, which relates to the technical field of wastewater treatment, and comprises a base structure and a multi-filtration tank, the top of the base structure is vertically provided with a stabilizing frame group, the multi-filtration tank is vertically inserted in one side of the stabilizing frame group, and the stabilizing frame group is connected with the multi-filtration tank. And the upper end and the lower end of the multi-filtering tank are connected with connecting hoses. According to the integrated multi-filtering electro-adsorption wastewater treatment device, by arranging the multi-filtering tank with multiple structures, wastewater can be filtered and purified as much as possible by utilizing each structure in the multi-filtering tank, and the whole device can be arranged, combined and fixedly butted in the horizontal direction according to needs through the structural use of the base structure, so that the integrated multi-filtering electro-adsorption wastewater treatment device is simple in structure and convenient to use. Therefore, a plurality of groups of multi-filtering tanks can be connected and combined by matching with the use of a connecting hose according to requirements, so that the effectiveness of purifying and filtering the wastewater is ensured, and the structural flexibility of the device in use is ensured.

The application provides a detachable multifunctional device for noise reduction, purification and pressure boosting, and belongs to the technical field of smoke exhaust. The device comprises a smoke exhaust pipe, wherein the smoke exhaust pipe is composed of detachably connected sound attenuation outer pipes, purification pipes and pressure boosting pipes, the sound attenuation outer pipes, the purification pipes and the pressure boosting pipes are sequentially arranged and are respectively provided with sound attenuation manifold structures, purification mechanisms and pressure boosting mechanisms, the pressure boosting mechanism comprises a pressure boosting impeller structure, and the pressure boosting impeller structure is arranged between the smoke outlet of the purification pipe and the smoke outlet of the pressure boosting pipe. The smoke exhaust pipe integrates the functions of noise reduction, purification and pressure boosting, can realize noise reduction and adsorption purification when the oil fume is exhausted, can prevent the problems of insufficient smoke exhaust pressure or oil fume backflow caused by airflow interference of the smoke outlet when high floors, multiple users simultaneously use integrated kitchens or oil fume exhausters, and the smoke exhaust pipe composed of detachably connected sound attenuation outer pipes, purification pipes and pressure boosting pipes can be conveniently cleaned.

The utility model relates to the technical field of welding automation, concretely is a kind of welding auxiliary device of adjusting flux supply quantity, the core technical effect of the device is reflected in two aspects of accurate feeding and efficient recovery, the design of cylinder drive baffle, lock pin positioning in feeding module, accurately control flux flow;Vibration module utilizes driving motor to drive cam to make conveying pipeline vibrate, ensure that flux is smoothly conveyed to welding interface, in the recovery aspect, the air pump of power module provides suction force for collection head, and excess flux is quickly recovered, and the filter screen in recovery pipeline effectively filters impurities, realizes flux purification and reuse, improves resource utilization, reduces welding cost.

The invention belongs to the technical field of solar evaporator hydrogel, and particularly relates to salt-resistant hydrogel as well as a preparation method and application thereof. According to the invention, sodium carboxymethyl cellulose is introduced as a first network, 3-[N, N-dimethyl-[2-(2-methylpropyl-2-enoyloxy) ethyl] ammonium] propane-1-sulfonic acid inner salt and 2-hydroxyethyl methylacrylate are taken as monomers, deionized water is taken as a solvent, carboxylated multi-walled carbon nanotubes are taken as a photothermal conversion material, an ammonium persulfate aqueous solution is taken as an initiator, and N, N-dimethylformamide is taken as a second network; according to the preparation method, a second network is formed by taking a cross-linking agent N, N '-methylene bisacrylamide as a cross-linking agent, the hydrogel with salt resistance and high evaporation rate is obtained, the hydrogel has high evaporation rate (the evaporation rate is 3.79 kg m <-2 > h <-1 >) and good mechanical properties (the strain is 175% and the stress is 23 kPa), and the problem that existing evaporator hydrogel cannot give consideration to salt resistance, high evaporation rate and mechanical properties at the same time is solved.

The utility model relates to the technical field of flue gas desulfurization, and provides a device for removing SO2 in flue gas, which comprises a heat exchange area, an absorption area and an electrolysis area, the heat exchange area comprises a plate heat exchanger, the plate heat exchanger is communicated with a flue gas inlet channel, the top of the absorption area is provided with a gas outlet I, and the absorption area is provided with an alkali liquor collecting layer, a spraying layer and a Pall ring packing layer from top to bottom; the electrolysis area is located at the bottom of the absorption area and is communicated with the absorption area through a liquid outlet, the electrolysis area comprises an anode electrolysis chamber and a cathode electrolysis chamber, the anode electrolysis chamber is communicated with the plate heat exchanger through a water pump, and the cathode electrolysis chamber is provided with a second air outlet; the plate heat exchanger is communicated with the absorption area through a liquid inlet and a low-temperature gas inlet, and the plate heat exchanger is also communicated with a sulfuric acid collector. The device disclosed by the utility model has the beneficial effects that the device can be suitable for a method for improving the solubility of SO2 by utilizing an alcohol auxiliary agent, and the effects of efficiently removing SO2 in flue gas and synchronously preparing sulfuric acid and hydrogen are realized.

The utility model relates to a kind of ecological system of reinforcing three-surface riverway denitrification and phosphorus removal, comprising: the cascade dam body being arranged in three-surface riverway and intercepting water body, ecological filter cage is arranged in the upstream river reach of cascade dam body in three-surface riverway, slow-release carbon source is added in ecological filter cage, ecological floating bed is arranged in the upstream river reach of ecological filter cage in three-surface riverway, plant gabion is arranged in the downstream river reach of cascade dam body in three-surface riverway.Affirmative effect is: ecological floating bed, ecological filter cage, cascade dam body, plant gabion are set along the direction of water flow in three-surface riverway, slow-release carbon source is added in ecological filter cage, by multistage purification process, to carry out water quality restoration to three-surface riverway water body, strengthen the removal of pollutants in water body, i.

This application discloses a chicken-derived collagen peptide skincare composition, its preparation method, and its application, belonging to the field of bio-extraction and cosmetic technology. This application obtains a highly active chicken-derived collagen peptide stock solution with a molecular weight ≤1000 Da and a peptide content ≥85% through raw material pretreatment, high-temperature and high-pressure directional hydrolysis, two-stage ultrafiltration purification, low-temperature concentration, and aseptic sterilization. A skincare composition is then formed by compounding 65% chicken-derived collagen peptide stock solution, 5% glycerin, and 30% purified water. This composition can form a breathable moisturizing film on the skin surface, achieving 24-hour long-lasting hydration, gently promoting the shedding of dead skin cells, and facilitating the expulsion of oil and keratin plugs from pores, resulting in smaller pores, smoother and softer skin, and a brighter complexion. This application features a stable process, no chemical additives, and high safety, making it suitable for preparing moisturizing and repairing cosmetics for facial and body use.

The utility model relates to the technical field of silkworm egg storage boxes for breeding, and provides an anti-pollution silkworm egg storage box for silkworm breeding, which comprises a box body, shading door plates are mounted on two sides of one end of the box body, frames are mounted on one side, close to the shading door plates, in the box body, and toughened glass is fixed in the frames. The temperature sensing structure is arranged, the temperature of the box body is monitored in real time through the temperature sensor, when the temperature in the box body is lower than the set temperature, the temperature sensor drives the heating wire to heat and the fan to rotate through the single chip microcomputer, and air flow formed by rotation of the fan enters the box body from the air holes through the heating wire. According to the silkworm egg storage box, the temperature in the box body is increased, when the temperature in the box body is higher than the set temperature, the temperature sensor only drives the fan to rotate, air flow in the box body is formed, the temperature in the box body is reduced, and therefore the practicability of the silkworm egg storage box is improved.

The utility model relates to the technical field of PCB production, disclose a kind of PCB board production dust removal device, including device cavity;Suction mechanism is connected in the device cavity, to the gas of outside miscellaneous dust is inhaled into the device cavity;And filter mechanism, it is set in the device cavity, located above the suction mechanism, to filter the miscellaneous dust inhaled gas;Wherein, the filter mechanism includes the spiral filter assembly being set in the top or middle part of the device cavity, and the horizontal filter assembly being set below the spiral filter assembly.The utility model provides a kind of PCB board production dust removal device, not only can be filtered to polluted air multiple times, to effectively improve the quality of device whole to air filtration and purification, and filter mechanism whole is not prone to damage, effectively reduce the probability that device is delayed due to filter mechanism damage and the overall production efficiency of PCB production line.

The application discloses a blockchain sharding method combining a node contribution mechanism and a two-round consensus, and comprises the following steps: completing blockchain node initialization and random sharding by using a verifiable random function based on an elliptic curve algorithm; constructing a multi-dimensional dynamic contribution value model based on discretization calculation, comprehensively considering the voting consistency of nodes in the current round, the historical contribution average value and the identity additional score, so as to select a leader node; executing a two-round consensus protocol; and triggering a dynamic replacement mechanism for a malicious leader node or a malicious shard by comparing the consistency of a pre-commitment and the number of valid signatures of a block header.

This invention relates to the field of communication technology, and in particular to an industry-specific SMS sending and verification method for preventing spam messages. The method includes: an operator providing a template application platform and dedicated accounts to enterprises holding fixed industry SMS access numbers; after logging in, enterprises submit SMS template applications with variable content annotations; upon approval, they receive a two-digit template number, which, along with the access number, template number, and annotated content, is stored in the industry SMS gateway's storage medium; the enterprise constructs a receiving request using the target mobile number as the receiving address, appending the two-digit template number, the variable content annotations, and the sending end using the access number; the gateway receives the request, intercepts key information, retrieves the corresponding template, removes both curly braces and internal characters, and compares the results; if they match, the SMS is sent; otherwise, it is rejected and a content mismatch message is returned. This invention achieves source control of spam messages and strengthens compliance to improve governance efficiency through template approval and storage, standardized request verification, interception of violations, and code-based log storage.

The utility model discloses a kind of waste gas recycling equipment of waste coal tar regeneration treatment, it is related to waste coal tar regeneration treatment technical field, and the utility model includes base, the upper portion of base is equipped with collection mechanism, for the waste gas generated in its waste coal tar regeneration treatment Organic solvent collection, collection mechanism includes: recycling assembly includes the recycling tower of being arranged in the top end side of base, waste gas is preliminarily gas-solid separation by cyclone separator, remove larger particle impurities, after purification waste gas makes waste gas uniform dispersion ascending by dispersion hole, under the action of circulating pump, absorption liquid in storage tank is transported to spray head by conduit, evenly sprayed in recycling tower, make its waste gas and absorption liquid fully contact, organic solvent in waste gas is captured, dissolved by absorption liquid, absorption liquid is recycled by backflow storage tank under the action of gravity, to greatly improve the recovery efficiency of organic solvent, reduce the content of organic solvent in waste gas.

This invention relates to the field of fire resistance performance testing technology for building samples. The invention discloses a portable coating combustion tester, comprising a water tank, a fan fixed to the top of the inner part of the extraction cylinder, an exhaust pipe fixed to the bottom of the extraction cylinder, a smoke extraction channel fixed to the first end of the first extraction pipe, a first clamping mechanism fixed to the top of the support platform, a bracket fixed to the top of the first extraction pipe, and a second clamping mechanism fixed to the top of the bracket. This portable coating combustion tester is small in size and lightweight, avoiding the safety hazards associated with external large gas cylinders, thus improving the portability and safety of the device. Simultaneously, it integrates thermocouples to collect the temperature of the unexposed surface of the sample and the flame temperature in real time. The smoke extraction channel removes the smoke, which enters the water in the water tank. Impurities in the smoke remain in the water, achieving a certain purification effect, and the water also cools the smoke.