1530 results about "Purification methods" patented technology

The invention discloses an extraction and purification method and application of plant-derived exosome-like nanoparticles, and relates to the technical field of plant exosome preparation. The extraction and purification method comprises the following steps: washing fresh ginseng, airing for later use, adding a proper amount of buffer solution, mixing, breaking walls, filtering, centrifuging filtrate to obtain supernate, carrying out ultracentrifugation on the supernate to obtain ginseng exosome nano-particle precipitates, resuspending the precipitates, respectively adding pure water sucrose solutions with different concentrations, and carrying out ultracentrifugation to obtain ginseng exosome nano-particles; and re-suspending the target strip, and carrying out ultracentrifugation to remove redundant cane sugar so as to obtain the purified ginseng exosome-like nano-particles. The ginseng exosome-like nano-particles disclosed by the invention have a remarkable effect when being applied to cosmetics or medicines with skin photoaging resistance, skin oxidation resistance and wrinkle resistance. In an anti-UVB (Ultraviolet B) induced cell injury experiment, the ginseng exosome-like nano-particles have an excellent anti-UVB induced cell injury effect.

The invention belongs to the technical field of sewage purification, and particularly relates to an intelligent adjusting system for water quality purification and a purification method. The system can obtain and process water quality information in real time, ensure timeliness and accuracy of monitoring, dynamically adjust a purification scheme, select an optimal treatment method according to a specific pollution type, improve the purification efficiency, adopt a special purification scheme for different types of pollution, ensure that medicines are applied according to indications, remarkably improve the purification effect, and improve the purification effect through circulating purification. The whole process is controlled by an intelligent system, manual intervention is not needed, errors and workloads caused by manual operation are reduced, a purification scheme is automatically judged and switched, operation continuity and stability are ensured, the use of chemical agents is reduced through accurate control and efficient treatment, and the cost is reduced. The risk of secondary pollution to the environment is reduced, various complex water quality pollution problems can be effectively solved, and water resources and the ecological environment are protected.

A purification method for purification and impurity removal of metal rubidium and cesium performs purification and impurity removal treatment on metal rubidium and cesium through external introduction of elements, and specifically comprises the following process steps and conditions: (1) firstly, putting metal lead particles into a porous and liftable stainless steel mesh; secondly, transferring a penicillin bottle in which the primary metal rubidium / cesium liquid is sealed in a vacuum manner into a glove box protected by argon, opening a penicillin bottle cap to transfer the primary metal rubidium / cesium liquid into a reaction tank, and then putting the reaction tank and a stainless steel mesh into a well type resistance vacuum furnace together to finish charging operation; and (2) heating the reaction tank after the charging operation by using a resistance heater, raising the temperature of the furnace to 50-320 DEG C, keeping the temperature for 2-10 hours, and then carrying out solid-liquid separation to obtain the high-purity metal rubidium / cesium, so that Li / Na impurities can be effectively removed, a high-purity metal rubidium / cesium product is prepared, and the production cost is reduced. And the method has the advantages of short process flow, low energy consumption, low reaction temperature, simplicity and convenience in equipment operation, lower manufacturing cost, variable specification, investment saving, environmental pollution reduction, raw material cost reduction and the like.

The invention belongs to the field of hydrogen energy, and particularly relates to a hydrogen purification system with a self-repairing function and a purification method. The product hydrogen is used as the regeneration gas, and when the adsorption effect of the adsorbent is reduced, the product gas in the long pipe vehicle can be directly returned to the PSA system for regeneration operation, so that the problem of system replacement caused by regeneration by using nitrogen is effectively avoided, the problem of replacement after regeneration is avoided, and the production time is shortened.

The invention relates to a method for purifying a monomer bis (2-hydroxyethyl) terephthalate (BHET) obtained by depolymerizing waste polyester through ethylene glycol (EG), and belongs to the technical field of polyester recycling. The BHET microwave radiation induced film evaporation separation and molecular distillation refining continuous process provided by the invention solves the problems of long process flow, poor continuity, more side reactions and low purity and yield in the direct separation and refining process of BHET in alcoholysis liquid based on a gas-liquid equilibrium separation method at present. The whole technological parameter requirement is mild, the process is short, continuity is good, the BHET purity of the product is larger than or equal to 99.0 wt%, the hue is good, and the BHET yield is larger than or equal to 80.0%. And meanwhile, the method has the advantages that EG is conveniently recycled in a system, the production process is cleaner and more environment-friendly, and the comprehensive efficiency advantage is obvious.

The invention discloses a water environment pollution water treatment and purification device and a purification method thereof, and belongs to the technical field of water treatment, the water environment pollution water treatment and purification device comprises a water inlet tank, a treatment tank is fixedly connected to one side of the water inlet tank, a water outlet tank is fixedly connected to one side of the treatment tank, and water pumps are fixedly connected to the water inlet tank and the water outlet tank; the input end of the water pump is fixedly connected with a water pumping pipe. According to the conveying device, the first motor drives the transmission wheels to rotate, the transmission wheels drive the belt and the other transmission wheel to rotate synchronously, then the connecting shaft rotates, the connecting shaft drives the reciprocating lead screw to move in the fixing plate, the reciprocating lead screw pushes the threaded cap to move, the threaded cap drives the transverse plate to move synchronously, and then the conveying cylinder moves stably in the horizontal direction. Chemical agents can be evenly distributed in the treatment box, the chemical agents and sewage are fully mixed through continuous stirring of the stirring blades, the purification effect is achieved, and finally treated water is sucked into the water outlet box through the water pump and discharged through the water outlet valve.

The invention discloses a health-care sojourn environment air quality monitoring and purifying method and system based on the Internet of Things, and the method comprises the steps: dividing a dynamic microenvironment region, deploying a multi-mode sensing terminal, collecting indexes, and uploading the indexes to a cloud end; establishing a personalized dynamic standard according to the human body biological rhythm characteristics; generating an initial evaluation value through an environment-health coupling evaluation model, and judging whether the initial evaluation value deviates from a standard or not through a dynamic threshold deviation detection model; if so, predicting an air quality trend by using a space-time multi-dimensional trend deduction model, and generating a target evaluation value; and inputting the regional space purification model to generate a purification strategy, and linking the purification equipment to realize precise targeted purification. According to the method, the limitation of traditional fixed indexes is broken through, the upgrading from environmental monitoring to health response is realized, the health risk can be accurately evaluated, the trend can be predicted, the purification parameters are dynamically adjusted, a monitoring, analysis, prediction and purification closed loop is formed, the air quality regulation and control accuracy and energy efficiency are improved, and an efficient scheme is provided for healthy and nourishment of sojourn.

The invention relates to the technical field of fused salt purification, and provides a fused salt purification device and a fused salt purification method.The fused salt purification device comprises a heating furnace, heat insulation layers, a reactor, a sleeve, a gas inlet and outlet device and a crucible, the heating furnace is provided with multiple sections of heating areas in the height direction, and the heating areas are separated by the heat insulation layers and can independently control the temperature; the reactor is partially arranged in the heating furnace and extends into the multiple sections of heating areas, and the reactor is provided with a reaction cavity and a cavity opening communicated with the reaction cavity; the sleeve is placed in the reaction cavity from the cavity opening and covers the cavity opening, a placement cavity is formed in the sleeve, and the gas inlet and outlet device is communicated with the placement cavity and used for providing inert gas for the placement cavity; the crucible is placed in the containing cavity and used for containing the fused salt to be purified. After the to-be-purified fused salt is heated and melted, each section of heating area can be controlled from top to bottom to slowly cool, so that the fused salt is solidified from top to bottom, purification is completed, impurities flow to the bottom of the crucible, the upper-layer purified fused salt is obtained, and the structure is simple.

The invention relates to a purification device and a high-purity aluminum purification method using the purification device. The purification device comprises a smelting chamber shell, a smelting chamber inner cavity, a smelting container arranged at the bottom of the smelting chamber inner cavity, a magnetic field module and a directional solidification module, wherein the magnetic field module and the directional solidification module are arranged in the gap position between the smelting chamber shell and the smelting chamber inner cavity. The magnetic field module comprises a first magnetic field and a second magnetic field; the first magnetic field comprises a centrifugal magnetic field area arranged on the periphery of the side wall of an inner cavity of the smelting chamber. The second magnetic field comprises axial magnetic field areas symmetrically arranged between the top of the inner cavity of the smelting chamber and the bottom of the inner cavity of the smelting chamber; the directional solidification module comprises a cooling part arranged at the bottom of the smelting container and a heating part arranged along the peripheral side of the top of the smelting chamber shell; according to the purification device and the purification method using the purification device, the removal rate of heavy impurities is preferably as high as 85% or above, the removal rate of light impurities is preferably as high as 75% or above, and continuous production of 6N high-purity aluminum is achieved.

The invention provides a continuous purification method of crude acetonitrile, and belongs to the field of acetonitrile purification. The continuous purification method of the crude acetonitrile comprises the following steps: rectification light component removal, membrane separation impurity removal, adsorption impurity removal and rectification purification. According to the continuous purification method of the crude acetonitrile, continuous purification of the crude acetonitrile can be realized, and meanwhile, the problems that new impurities are introduced by side reactions, the rectification efficiency and the rectification stability are influenced by treated products and the device is influenced by over-high alkalinity of the treated secondary rectification liquid due to the fact that sodium hydroxide and formaldehyde are adopted to treat the rectification liquid are avoided; the acetonitrile product with the purity meeting the requirement is prepared by continuously purifying the crude acetonitrile.

The invention relates to the technical field of constructional engineering, and discloses an intelligent ventilation and purification method and system for constructional engineering, and the method comprises the steps: 1, determining the concentration of pollutants in a building based on real-time air quality data, and calculating the required ventilation quantity meeting a preset standard; secondly, the fresh air introduction proportion is adjusted according to the indoor and outdoor temperature and humidity difference value so as to optimize energy consumption and thermal comfort balance; 3, according to the personnel distribution density, the local area air supply intensity is set, and the air circulation uniformity is ensured; fourthly, the system operation mode is regulated and controlled based on the working state of the air purification equipment, so that energy consumption is reduced, and the service life of the equipment is prolonged; the fresh air introduction proportion is intelligently adjusted by comparing indoor and outdoor temperature and humidity differences. For example, when the outdoor temperature and humidity are close to the indoor comfortable interval, the fresh air volume is increased to utilize natural cold and heat sources; when the outdoor environment is extreme, the fresh air volume is reduced, the heat recovery device is started, the air conditioner load is reduced, and energy waste is reduced.

The invention discloses a method for purifying disilane, which comprises the following steps: A, filtration and adsorption treatment: mixed gas is sequentially introduced into at least one stage of filter and at least one stage of adsorber to remove solid impurities, the filter is selected from a porous ceramic filter, and the adsorber is selected from an activated carbon adsorber; b, primary rectification: introducing the filtered and adsorbed mixed gas into a heavy component removal tower for primary rectification to remove heavy component impurities, wherein the heavy component impurities are selected from gas impurities of which the molecular weight is greater than that of disilane; c, membrane separation: introducing the mixed gas subjected to primary rectification into a membrane separator, and enabling the mixed gas to pass through an organic polymer reverse osmosis membrane made of an inert material; and D, secondary rectification: introducing the mixed gas subjected to membrane separation treatment into a light component removal tower, and carrying out secondary rectification to remove monosilane. The method disclosed by the invention is simple to operate and few in working procedures, and is beneficial to quickly realizing high-quality separation and purification of disilane.

The invention relates to the technical field of smoke purification, in particular to an industrial smoke purification device and a purification method. The invention aims to solve the problem that the existing smoke treatment equipment has a poor treatment effect on harmful substances. According to the technical scheme, the industrial smoke purification device comprises a purification cylinder, an air inlet pipe is fixedly connected to the right side of the purification cylinder in a communicating mode, an exhaust port is formed in the top of the purification cylinder, a first liquid passing port and a second liquid passing port are formed in the left side of the purification cylinder, and the first partition plate is fixedly connected into the purification cylinder. By arranging the atomization unit, waste gas flows upwards in the gap between the flow dividing pipe and the extrusion plug through air pressure and makes contact with absorption liquid through the ventilation plate, due to the fact that the gap between the flow dividing pipe and the extrusion plug is small, the gas can flow at a high speed when the waste gas passes through the gap, and the absorption liquid is attracted to enter the flow dividing pipe through the flow guiding pipe; waste gas collides with the absorption liquid to generate fine bubbles, and the waste gas absorption efficiency of the absorption liquid is improved.

The invention discloses a purification method for removing quartz inclusion, which comprises the following steps: calcining a quartz sand raw material at high temperature for a certain time, then taking out and quickly putting into cold water for cold quenching; dehydrating quartz sand, feeding into a microwave reactor, heating to a set temperature, and keeping for a period of time; after the reaction is finished, cleaning the quartz sand with ultrapure water; filling the quartz sand into a high-temperature and high-pressure reactor, introducing supercritical carbon dioxide and hydrogen fluoride mixed gas, and keeping the temperature and the pressure for a period of time; and after the reaction is finished, discharging gas to obtain the high-purity quartz. Through two-stage heat treatment, a channel between gas-liquid inclusions in quartz particles and the outside can be efficiently opened, and meanwhile, the supercritical method ensures that impurities in the inclusions can be effectively dissolved out; the treatment time is short, the required temperature is low, the acid consumption is less than 10%, and the method has the advantages of high efficiency and low cost.

The invention provides an indoor air purification method, which comprises the following steps of: comparing and analyzing airflow organization characteristics and particulate matter distribution conditions under different ventilation strategies, evaluating the effectiveness of various ventilation modes for controlling infection risks in a hospital, and screening out a target ventilation system design scheme, so that the target ventilation system design scheme meets the requirements of hospital air quality standards; on the basis of the screened target ventilation system design scheme, the arrangement of an air supply outlet, the air speed and the temperature are further optimized, and a large vortex simulation technology is adopted to conduct refined simulation on the airflow turbulence characteristics of a local area so as to verify the stability and reliability of the ventilation effect; and comprehensively evaluating the influence of the optimized ventilation system design scheme on the overall energy consumption of the hospital, carrying out economic analysis, balancing the energy-saving benefit and the sensing control effect, finally determining an enforceable airflow organization optimization strategy and supporting measures, and providing a customized sensing control solution for the hospital.

The invention relates to a purification method of high-purity boron trifluoride 11, which comprises the following steps: S1, carrying out nitrogen purging and replacement on a purification device of boron trifluoride 11, and keeping the moisture content to be less than 1ppm; s2, the boron trifluoride 11 raw material is subjected to adsorption impurity removal, part of HF impurities are removed, and mixed gas is obtained; s3, rectifying the mixed gas obtained in the step S2 to remove light components, so as to obtain a mixed solution; s4, rectifying the mixed solution obtained in S3 again to remove heavy components, so as to obtain high-purity boron trifluoride 11; and S5, collecting the high-purity boron trifluoride 11 into a cold trap, and filling the cold trap with the high-purity boron trifluoride 11. According to the technical scheme provided by the invention, the purchased product is introduced into the rectifying tower to remove light components and heavy components so as to obtain a high-purity product, and light components and heavy component impurities such as H2, O2, Ar, N2, CO2, SO2, HF and SiF4 in boron trifluoride 11 are effectively removed through accurate control of the rectifying process, so that a high-purity 5N-grade boron trifluoride 11 product can be obtained, and the requirement of high-end application is met.

The invention discloses a seawater pollution purification device, and relates to the technical field of seawater pollution purification, the seawater pollution purification device comprises a tank body, a cavity is formed in the tank body, a first cylinder is sleeved in the tank body, a second cylinder is sleeved in the first cylinder, two ends of the first cylinder and two ends of the second cylinder are in sealed connection with the inner wall of the cavity along the axis direction, and the first cylinder and the second cylinder are in sealed connection with the inner wall of the cavity. A reaction cavity is formed between the first barrel and the inner wall of the cavity, a filtering cavity is formed between the inner wall of the first barrel and the outer wall of the second barrel, a water storage cavity is formed between the inner wall of the second barrel and the inner wall of the cavity, a stirring assembly is arranged in the reaction cavity and comprises a fixing ring, a plurality of via holes are formed in the fixing ring, and the through holes are communicated with the filtering cavity. The seawater pollution purification device disclosed by the invention has the characteristic of improving the seawater pollution purification quality.

Provided is a wastewater purification method, the method including: supplying a first mixed stream, in which an acid component and wastewater including water, a nitrile-based monomer, and ammonia are mixed, to a first column; recovering the nitrile-based monomer from an upper discharge stream from the first column; supplying a second mixed stream, in which a lower discharge stream from the first column and a base component are mixed, to a second column; and recovering the ammonia from an upper discharge stream from the second column and separating purified wastewater.

The invention discloses an intelligent purification method and device for ventilation air methane, and particularly relates to the technical field of methane purification. Key parameters and key output indexes of an adsorption tower in the adsorption process are obtained, and the key parameters of the adsorption tower are adjusted according to the key parameters and adjustment key parameters; after the adsorption tower is adjusted according to the key parameters, the air inlet flow and temperature of the adsorption tower are adjusted according to a preset pressure curve; the saturation state of the adsorbent is judged according to the concentration of methane in the outlet gas of the adsorption tower, the change of the internal pressure and temperature of the adsorption tower and the adsorption time, and the working condition of the adsorption tower is switched into the desorption working condition according to the saturation state of the adsorbent, so that the working condition can be adjusted and controlled in real time according to the actual ventilation air methane purification state; the concentration of methane adsorbed by the adsorption tower is high, the energy consumption is low, and the desorption time is short.

The invention relates to the technical field of medicine refining, in particular to a purification method and a preparation method of a long-acting side chain. According to the embodiment of the invention, the long-acting side chain is solidified and crystallized by controlling the pH value, extracting and salifying to obtain the crystal substance in a salt form with higher purity, and then the long-acting side chain in a free state is obtained after salt dissolving, extracting, washing and desalting, so that the long-acting side chain is higher in purity and low in impurity content. Meanwhile, by adopting the purification method provided by the embodiment of the invention, the output of three wastes such as waste organic solvents, wastewater and solid wastes can be reduced, and the production cost is saved.

The invention discloses a tritiated waste ash purification method and system based on cooperation of multistage adsorption and low-temperature distillation. The method comprises the following steps: S1, sorting treatment; s2, acid leaching treatment; the waste ash to be treated is subjected to acid leaching treatment, and acid leaching slurry is obtained; s3, carrying out separation treatment; carrying out separation treatment on the acid leaching slurry to obtain acid leaching residues and leachate; s4, adsorption treatment; carrying out adsorption treatment on the leachate to obtain penetrating liquid; s5, catalytic treatment; performing catalytic treatment on the penetrating liquid to obtain tritiated water and catalytic treatment tail gas; and S6, carrying out adsorption treatment on the catalytic treatment tail gas. According to the tritiated waste ash purification method, multi-stage adsorption and low-temperature distillation cooperative treatment is adopted, and the tritiated waste ash purification efficiency is greatly improved. According to the tritiated waste ash purification system, pretreatment, adsorption-catalysis and rectification concentration unit independent packaging are achieved through modular design, and rapid disassembly and assembly and multi-line parallel treatment are supported.

The invention provides an integrated water purification method which comprises the following steps: a first impeller and a second impeller rotate to generate negative pressure in a mixing chamber; air enters the mixing chamber through the air inlet main pipe and is mixed with water under the action of the first impeller to form pre-steam-water mixed liquid; pre-steam-water mixed liquid enters the inner wall of an upper cover plate under the action of a first impeller and is cut by a third cutting body, so that more oxygen in the pre-steam-water mixed liquid is dissolved in water; meanwhile, the pre-steam-water mixed liquid moves downwards and outwards after being reflected by the upper cover plate and collides, cuts and is mixed with the pre-steam-water mixed liquid which does not enter the inner wall of the upper cover plate, so that water drops and bubbles become finer and finer, and more oxygen is dissolved in water; the pre-steam-water mixed liquid serves as power fluid of a second impeller for aeration, and steam-water mixed liquid is formed; and the steam-water mixed liquid flows out from a flow channel of the mixing chamber under the action of the second impeller to oxygenate the surrounding water body. According to the integrated water purification method provided by the invention, the aeration rate and the oxygen dissolving efficiency are effectively improved.

The invention relates to the technical field of chemical metallurgy, and discloses a preparation and purification method of high-purity sponge vanadium, which comprises the following steps: preparing a vertical vacuum reduction furnace, adding a reducing agent, discharging air in the furnace, and introducing shielding gas; heating, adding vanadium chloride for smelting, taking out, putting into a distillation furnace, and carrying out heating and heat preservation treatment; and finally, putting the product into a crucible in an electron beam furnace, vacuumizing, heating and smelting, introducing protective gas into the electron beam furnace after smelting, and cooling to room temperature to obtain a sponge vanadium product. The high-purity sponge vanadium is prepared by adopting a novel vanadium chloride metal thermal reduction-distillation method, and the sponge vanadium is further purified through vacuum electron beam refining, so that the common technical problems of long flow, low product purity and the like of a traditional method for preparing the high-purity metal vanadium are solved.

The invention discloses a boron trifluoride purification device and a boron trifluoride purification method, and relates to the technical field of boron trifluoride purification. The boron trifluoride purification device comprises an adsorption tower, the side face of the adsorption tower is connected with a material mixing tower through a pipeline, the side face of the material mixing tower is connected with a light component removal tower through a pipeline, and the side face of the light component removal tower is connected with a heavy component removal tower through a pipeline. The side surfaces of the light component removal tower and the heavy component removal tower are connected with a three-waste treatment bin through pipelines. The boron trifluoride purification method comprises the steps that after gas is introduced into the mixing tower, a servo motor is started, and a rotating cylinder, a rotating disc, a torsional spring, an extrusion block, a fixing block, a hydraulic device, a first stress rod, an arc-shaped rod, a first spring, a rotating block and a mixing plate are matched, so that the residence time of the gas in the mixing tower can be prolonged when needed, and the mixing effect of the device is improved.

The invention relates to the technical field of carbon dioxide recovery waste gas purification, in particular to waste gas purification equipment for carbon dioxide recovery and a purification method thereof.The waste gas purification equipment for carbon dioxide recovery comprises a shell assembly and further comprises a slag removal assembly, and the slag removal assembly comprises a fixed cylinder and a rotating part; the rotating component comprises a slag removal motor, a first stirring plate and a second stirring plate, a fan-shaped shell is fixedly mounted at the bottom of the outer cylinder, a water outlet part is arranged at the bottom of the fan-shaped shell, and a collecting component is arranged in the fan-shaped shell, and the waste gas purification method for carbon dioxide recovery comprises the steps of spraying, purification and the like. The device has the advantages that sediments in the lime water are continuously removed in the waste gas purification process, the negative influence of sediment accumulation on the sulfur dioxide removal efficiency is avoided, sulfur dioxide in the waste gas is effectively purified, corrosion of the sulfur dioxide to subsequent carbon dioxide recovery equipment is reduced, and the reliability and the safety of a whole waste gas treatment system are improved.

The invention discloses a water purification method and system for urban and rural integrated water supply, and relates to the technical field of water treatment. The water purification method for urban and rural integrated water supply solves the problems that an existing system is poor in process adaptability, inaccurate in control and low in energy efficiency. Water quality and pipe network data are collected in real time through a sensor; an adjustable folded plate flocculation device is adopted, and the flocculation effect is optimized in combination with turbidity dynamic adjustment; constructing a multi-parameter dosing model, and dynamically dosing according to flow, turbidity and the like; the LSTM neural network is used for predicting the state of a filter layer, and air-water pulse backwashing is intelligently controlled; and adding a composite flocculant to enhance pollutant removal, and realizing water quality prediction and system collaborative optimization by virtue of a random forest algorithm and a digital twin platform. The flocculation efficiency is improved, dosing is accurately controlled, energy consumption and water resource waste are reduced, and an efficient and stable scheme is provided for urban and rural water supply.

The present invention relates to the production of light (meth)acrylic esters such as methyl or ethyl (meth)acrylate by direct esterification of (meth)acrylic acid with the corresponding light alcohol. The invention more particularly relates to a process for the recovery / purification of C1-C2 alkyl acrylate, comprising a step of thermal cracking of the ester adducts alone or in combination with the heavy products of an acrylic acid production facility, and a step of hydrothermal gasification of the bottom products of this cracker and of the wastewater from this process.

The invention discloses sewage purification equipment based on a biological membrane combined process and a purification method thereof.The equipment comprises a main body unit, a cleaning unit, a water isolation unit and a vibration unit, the main body unit comprises a sewage purification box, a biological membrane layer fixedly connected with the interior of the sewage purification box, an activated carbon adsorption layer and a filtering layer; the cleaning unit is located in the sewage purification box and used for cleaning the filtering layer, the water isolation unit is arranged in the cleaning unit, fixedly connected with the inner top wall of the sewage purification box and used for isolating sewage and avoiding hindering cleaning of the cleaning unit, and the vibration unit is connected with the cleaning unit and the water isolation unit. According to the invention, when the scraping plate is used for scraping impurities, the sewage purification operation does not need to be interrupted, and the impurities are not easy to flow everywhere along with water flow when the impurities are scraped, so that the impurity cleaning effect can be improved, in addition, when the impurities are scraped to the impurity collecting box, the impurities can be ensured not to be attached to the scraping plate, and the impurity cleaning effect is further improved.

The invention relates to automatic water purification equipment and a water purification method, and belongs to the technical field of water purification equipment. The automatic water purification equipment comprises a mounting frame, a filter cartridge is mounted at the bottom of the mounting frame, a filter element is mounted between the mounting frame and the filter cartridge, a water inlet pump and a water outlet pump which are communicated with the filter cartridge are mounted in the mounting frame, and a descaling mechanism in contact with the filter element is mounted in the filter cartridge; the telescopic rubber corrugated pipe is matched with the filter cartridge and the sealing block to jointly form an elastic sealing structure which can move along with the ring frame and always cover the threaded column, so that scale can be prevented from being adhered to the surface of the threaded column, and the threaded column can always drive the first ring brush to effectively clean the filter element; meanwhile, the opening, penetrating to the outside of the filter cartridge, of the threaded column can be blocked, a sealing structure does not need to be independently arranged, and internal and external isolation of the filter cartridge is ensured.

The invention belongs to the field of air purification, and relates to module combined type comprehensive purification equipment and a purification method thereof.The module combined type comprehensive purification equipment is characterized in that a first gas sensor is arranged in a harmful gas collecting header pipe, and a second gas sensor is arranged in a pipeline between an exhaust port of a module combined type washing tower and a third electric control three-way valve; the first gas sensor and the second gas sensor are electrically connected with the ARM processor, and the ARM processor controls opening and closing of the module combined type washing tower, the mixing atomizing chamber and the module combined type adsorption box and controls opening and closing of the first electric control three-way valve, the second electric control three-way valve and the third electric control three-way valve. According to the method, the comprehensive harmful gas treatment sequence is as follows: firstly, acidic or alkaline dirt is removed, and then, activated carbon particle filtration and adsorption are performed. According to the invention, diversified, staged and complicated mixed harmful waste gas can be automatically and effectively purified.