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4319results about "Combination devices" patented technology

Dust removal mechanism of inverted laser etching machine for LOW-E glass and implementation method

The invention discloses a dust removal mechanism and a dust removal method of an inverted laser etching machine for LOW-E glass, relates to the field of dust removal for LOW-E glass laser etching, and solves the problems of dust dissipation, interference between an air curtain and negative pressure airflow, poor adaptability of adsorption force and easy blockage of a filter membrane in the etching process. The mechanism comprises a dynamic sealing dust removal cover, an annular air curtain guiding module, a negative pressure dust collection module, a multi-stage filtering module, a composite adsorption positioning module and an intelligent control module. The method comprises six steps of pretreatment positioning, air curtain-negative pressure collaborative initialization and the like. According to the scheme, airflow interference is eliminated through an air curtain-negative pressure collaborative PID algorithm, an adsorption force two-factor adjustment algorithm is matched with glass characteristics, pre-dedusting is achieved through a dust concentration LSTM prediction algorithm, and the filtering efficiency is guaranteed by combining a multi-stage filtering module with a filtering membrane self-cleaning function; dust concentration can be effectively controlled, glass film layer damage is avoided, dedusting stability is improved, and filtering life is prolonged.
Owner:GUDETECH CO LTD

Gas nanometer purifier

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.
Owner:HONGRIJIA DEPURATE FACILITY SCI & TECH CO LTD

Adsorption treatment system for heavy metal particles in waste incineration flue gas

The invention discloses an adsorption treatment system for heavy metal particles in waste incineration flue gas, and relates to the field of flue gas treatment.The first adsorption structure comprises a plurality of adsorption assemblies which are arranged in parallel from top to bottom, each adsorption assembly comprises a first adsorption section and a second adsorption section which are communicated in sequence, and a plurality of honeycomb assemblies are arranged in each first adsorption section; the honeycomb assembly comprises a plurality of honeycomb frameworks, and amino silane layers are arranged on the honeycomb frameworks; the second adsorption section comprises an adsorption plate, and a carbon-doped boron nitride adsorption layer is arranged on the adsorption plate; the air outlet end of the second adsorption section is connected with the spiral air inlet assembly; flue gas enters the adsorption plate of the second adsorption section after passing through the honeycomb framework on the first adsorption section, and the flue gas enters the spiral gas inlet assembly of the second adsorption structure through the gas outlet end of the second adsorption section. According to the system, multi-stage treatment is carried out through an amino silane layer on a honeycomb framework of the first adsorption section, a carbon-doped boron nitride adsorption layer of the second adsorption section and spraying liquid on a second adsorption structure.
Owner:Hainuoer Environmental Protection Group Co., Ltd. +1

Powdered coal pyrolysis oil gas high-temperature dust removal system coupled with cyclone separation and moving particle bed

The invention discloses a cyclone separation and moving particle bed coupled pulverized coal pyrolysis oil gas high-temperature dust removal system, and belongs to the technical field of coal clean utilization. The system comprises a cyclone separator, a fine filtration unit, a filter material cyclic regeneration unit and an intelligent control unit, the fine filtration unit comprises a particle bed, a particle bin is arranged at the top end of the particle bed, and a composite filter material layer is arranged on the particle bed; a dust-containing high-temperature oil gas pipeline and a pretreatment high-temperature oil gas pipeline are arranged at the top end of the cyclone separator, dust-containing high-temperature oil gas is introduced into the cyclone separator through the dust-containing high-temperature oil gas pipeline to be pretreated, and the pretreated dust-containing high-temperature oil gas is introduced into the particle bed through the pretreatment high-temperature oil gas pipeline to be finely filtered; and a coke breeze discharge pipe is arranged at the bottom of the cyclone separator. The invention is used for solving the technical problem of low gas-solid separation efficiency at high temperature caused by the adoption of a single filter material in the existing pulverized coal dust removal system.
Owner:SHCCIG YULIN CHEM CO LTD

Ultrasonic agglomeration dedusting and demisting device of desulfurization system and operation method of ultrasonic agglomeration dedusting and demisting device

The invention relates to the technical field of desulfurization towers, in particular to an ultrasonic agglomeration dedusting and demisting device of a desulfurization system and an operation method thereof, and aims to solve the problems that in the prior art, fine particles in flue gas are not subjected to agglomeration pretreatment, a targeted cleaning mechanism is lacked, and a demister is easily blocked due to filter residue attachment after long-term operation; and finally, the dedusting and demisting efficiency of the desulfurizing tower is reduced. According to the invention, the ultrasonic generation module is started, parameters are dynamically optimized based on a PLC and a fuzzy PID algorithm to induce agglomeration of PM2.5 and fog drops, the particle size is increased through a depressurization ring, and then efficient gas-liquid separation is carried out through a dual separation mechanism; when filter residues are attached, the motor drives the spray pipe to rotate and spray, the cleaning assembly is matched for wiping, the guide assembly guides waste liquid, the intelligent system adjusts in real time and triggers a cleaning program, a pretreatment and cleaning mechanism is established, blockage is eradicated, stable operation of parts is ensured, and the dust and mist removal efficiency is improved.
Owner:JINGRE (ULANQAB) HEATING CO LTD

Double-hearth lime kiln low-emission synergistic dust removal system and control method

The invention relates to the technical field of industrial environmental protection, in particular to a double-hearth lime kiln low-emission collaborative dust removal system and a control method. The control method comprises the steps that a flue gas sensing module collects real-time flue gas parameters and kiln body working condition data; the working condition linkage regulation and control unit dynamically adjusts operation parameters of the dust removal equipment through a fuzzy PID working condition matching algorithm; the regional collaborative dust removal assembly performs differential dust removal according to flue gas characteristics and treatment requirements of different dust raising points, and flue gas flow guide is performed through a double-hearth time sequence valve group during kiln body switching; the noise elimination and vibration isolation cooperation unit adjusts the noise elimination amount and the vibration isolation damping according to the rotating speed of the draught fan and controls noise and vibration. The tail gas deep purification unit evaluates the dust removal state through a flue gas and dust coupling model, carries out deep treatment on the dedusted tail gas and controls the tail gas emission concentration; the anti-blocking optimization unit carries out cooperative anti-blocking through dynamic rapping and airflow purging based on historical operation data and real-time working conditions. Therefore, the problems of poor dust removal stability, high operation energy consumption and the like in the prior art are solved.
Owner:HUAPING COUNTY PANXING MINING CO LTD

Asphalt smoke treatment device for highway construction

The invention relates to the field of waste gas treatment, and discloses an asphalt smoke treatment device for highway construction, the asphalt smoke treatment device comprises a spray tower body, a filter unit and a spray unit, the filter unit and the spray unit are both located in the spray tower body, and the filter unit can intercept and filter large particles in asphalt smoke entering the spray tower body. The first filter plate mechanism and the second filter plate mechanism are arranged in the spray tower body, double interception of large particles of asphalt smoke is achieved through an interception plate A and an interception plate B, a guide rod is matched to drive an ejector rod on a blockage clearing disc to accurately penetrate through a filter hole for blockage clearing, and a rotating ring slides and rotates along with the guide rod and drives the clearing plate to scrape impurities at the bottom of the interception plate; the power driving equipment controls the filter plate to deflect to assist in impurity falling, so that the problem that the spraying effect is influenced by increased filtering resistance and non-uniform impurity distribution caused by blockage of filter holes in the background art is effectively solved, the airflow circulation efficiency is guaranteed, and stable conditions are provided for subsequent spraying purification.
Owner:QINHUANGDAO RUNHENG HIGHWAY ENG CONSULTING & DESIGN CO LTD

Dedusting equipment for thermal power generation desulfurization tower

The invention discloses dedusting equipment for a thermal power generation desulfurizing tower, and relates to the technical field of dedusting equipment. The dust removal equipment for the thermal power generation desulfurization tower comprises a support frame, the top of the base is fixedly connected with a shell; a water storage block is fixedly connected into the shell, a water inlet pipe is fixedly connected to the side face of the water storage block, a first hydraulic block is fixedly connected to the top of the water storage block, a first push block is movably connected to the top of the first hydraulic block, the interior of the first hydraulic block communicates with the interior of a second hydraulic block through a first hose, and a water blocking plate is hinged to the bottom of the water storage block through a first rotating shaft. The outer side of the first rotating shaft is fixedly connected with a rotating block, the bottom of the rotating block is fixedly connected with a second pushing block, the bottom of the second pushing block is movably connected with a second hydraulic block, and the first hydraulic block is movably connected with the inclined plate through a transmission piece. When the dedusting equipment for the thermal power generation desulfurizing tower is used, the electric telescopic rod is started to rotate the inclined block, so that a water film is generated, and the filtering efficiency of the equipment is improved.
Owner:SUPERPOWER (JILIN) ELECTRONIC TECHNOLOGY CO LTD

Woodworking central dust remover

The invention relates to the field of dust removal, and discloses a woodworking central dust remover which comprises a dust remover body, a filter assembly and a dust removal assembly arranged in a filter bag, a dust removal cavity and a dust suction cavity are formed in the dust remover body, an air chamber valve is arranged between the dust removal cavity and the dust suction cavity, the air chamber valve separates the two cavities, an air inlet is formed in the side wall of the dust removal cavity, and an air outlet is formed in the side wall of the dust suction cavity; the linkage ash removal mechanism is constructed by arranging the supporting rods capable of expanding in the radial direction in the filter bag and the tightening ring connected to the bottom. The multiple supporting rods synchronously expand outwards under the action of high-pressure airflow to drive the tightening ring to be screwed, so that the filter bag structure is expanded and twisted to form a composite disturbance area covering the inner wall and the bottom, the dust attachment state is effectively destroyed, and the filter bag structure is particularly suitable for cleaning the bottom, wrinkles and other traditional areas difficult to clean.
Owner:QINGDAO DESENT ENVIRONMENTAL PROTECTION EQUIPMENT TECHNOLOGY CO LTD

Steam boiler flue gas desulfurization circulating purification device

The invention discloses a steam boiler flue gas desulfurization circulating purification device and belongs to the technical field of flue gas purification. The device comprises a desulfurization treatment box, the inner wall of the desulfurization treatment box is fixedly connected with a mounting frame, the top of the mounting frame is provided with a spraying mechanism, the spraying mechanism is internally provided with a flushing mechanism, the inner wall of the desulfurization treatment box is rotatably connected with a demister, and the surface of the demister is provided with a vibration falling mechanism. A circulating water tank is fixedly mounted on the side wall of the desulfurization treatment box, the spraying mechanism comprises a plurality of atomizing nozzles arranged in the desulfurization treatment box and controls the atomizing nozzles to continuously move in the spraying process to improve the spraying comprehensiveness, and the flushing mechanism comprises connecting rings arranged on the outer walls of the atomizing nozzles and drives the atomizing nozzles to turn over by an angle to flush the atomizing nozzles. And the vibration-off mechanism comprises an abutting rod arranged above the demister, and the abutting rod is controlled to continuously knock the demister, so that slurry adsorbed in the demister is vibrated off.
Owner:SHANDONG LONGSHI WOOD IND CO LTD

Tail gas treatment equipment for rubber asphalt production

The invention provides tail gas treatment equipment for rubber asphalt production, which comprises a treatment tank, and further comprises an inner cylinder arranged on the inner side of the treatment tank, and the upper part of the inner side of the inner cylinder is provided with a fine filter screen and a coarse filter screen; a plurality of cleaning pipes are circumferentially distributed and mounted on the rotating shaft on the upper side of the coarse filter screen, cleaning brushes are mounted on the lower sides of the cleaning pipes, blowing holes are formed in the lower sides of the cleaning pipes, a plurality of reverse blowing pipes are circumferentially distributed and mounted on the rotating shaft on the lower side of the fine filter screen, and blowing heads are mounted on the upper sides of the reverse blowing pipes; the pressure relief reverse blowing mechanism is used for conveying compressed air to the inner cavity of the rotating shaft; and the regulation and control mechanism is used for controlling and regulating air in the inner cavity of the rotating shaft to be conveyed to the cleaning pipe and the reverse blowing pipe. Through graded filtration of the double-layer filter screen and cooperative dust removal of the cleaning brush and the reverse blowing nozzle, particulate matters are effectively intercepted, long-acting smoothness of the filter screen is ensured, and the tail gas purification efficiency and the system operation stability are improved.
Owner:ANHUI LULUTONG NEW MATERIALS TECHNOLOGY DEVELOPMENT CO LTD

Impurity deep removal and purification device in ES fiber solvent recovery

The invention provides an impurity deep removal and purification device in ES fiber solvent recovery. Relates to the technical field of electrostatic spinning process and solvent recovery, and comprises a pre-separation module used for removing fiber residues and solid particles larger than 5 microns in solvent-enriched gas; the multi-stage deep condensation module comprises two stages of condensers, and the two stages of condensers condense the solvent steam according to the gradually decreased temperature and intercept micro-droplet impurities; and the composite adsorption module is used for adsorbing residual organic trace impurities and removing water. The impurity deep removal and purification device in ES fiber solvent recovery has the advantages of being low in energy consumption, easy and convenient to maintain, stable in operation and capable of being continuously online for 72 h or above without shutdown, the solvent recovery rate is remarkably increased, the operation cost is reduced, and the potential risk of organic vapor emission to the environment and operation safety is effectively avoided.
Owner:FUJIAN JIANXING TECH CO LTD

System for dedusting and then denitrating boiler flue gas

The invention relates to the technical field of boiler flue gas dust removal and denitration, in particular to a boiler flue gas dust removal and denitration system which comprises a vertical inertial dust removal mechanism for guiding discharged flue gas and intercepting dust. The high-temperature dust remover is used for carrying out fine dust removal on the flue gas discharged by the vertical inertial dust removal mechanism; and the denitration device is used for carrying out denitration treatment on the flue gas subjected to dust removal and purification. Through self-adaptive mechanical linkage of the spindle air plug and the shutter mechanism, synchronous optimization of smoke flow velocity compensation and collision angle under the full-load working condition is realized, and the low-load dust removal efficiency is ensured not to be reduced; and in cooperation with spiral self-rotating cleaning and active cooling protection, the operation stability and the service life of the device in a high-temperature and high-dust environment are improved.
Owner:ZHENDA TECH (SHANGHAI) CO LTD

Gas nanometer purification method and purifier

The invention relates to a gas nanometer purification method and a purifier, and the method comprises the following steps: gas to be cleaned enters a gas-water separator for gas-liquid separation and coarse filtration, liquid impurities and large-particle solid impurities in the gas are removed, and preliminarily purified gas is obtained; on the basis of switching logic, the preliminarily purified gas is alternately conveyed to two adsorption unit groups for deep adsorption purification, adsorbent dehydration treatment and fine dust interception treatment are sequentially completed in the adsorption units, and clean gas is obtained; one part of the clean gas is conveyed to the gas storage bin to be stored, and the other part of the clean gas is conveyed to the regeneration gas bin to be pre-stored for regeneration cycle of the subsequent adsorption unit. Through the integrated method design of continuous adsorption working conditions, online regeneration cycle and automatic pressure equalizing switching, seamless connection of adsorption and regeneration and uninterrupted gas supply in the whole process are achieved, gas supply interruption and severe gas pressure fluctuation are effectively avoided, and the strict use requirements of precise manufacturing, automatic production lines and continuous production scenes for stable gas sources can be met.
Owner:HONGRIJIA DEPURATE FACILITY SCI & TECH CO LTD

Self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower

The invention relates to the technical field of activated carbon adsorption towers, in particular to a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which comprises an adsorption tower body, an adsorption mechanism is arranged on the outer side of the adsorption tower body, and a recycling mechanism is arranged on the front side of the adsorption mechanism. The adsorption mechanism comprises a vibration assembly, a sweeping assembly, a leading-in assembly, a conveying assembly and a flow dividing assembly, the vibration assembly is arranged on the inner side of the adsorption tower body, the sweeping assembly is arranged on the inner side of the vibration assembly, the leading-in assembly is arranged on the inner side of the vibration assembly, and the conveying assembly is arranged on the top of the vibration assembly; the flow dividing assembly is arranged on the front side of the conveying assembly. The invention provides a self-cleaning circulating type industrial organic waste gas activated carbon adsorption tower which is provided with a structure for circularly cleaning and recycling residual impurities, so that the residual impurities on the surface of an activated carbon plate can be cleaned and recycled, and the long-term use stability of the activated carbon plate is improved.
Owner:SUZHOU WANSHIYI ENVIRONMENTAL PROTECTION RES CO LTD

Pulverizing and conveying system for high-purity materials

The invention discloses a high-purity material pulverizing and conveying system, which belongs to the technical field of metal pulverizing and comprises a pulverizing production line, a conveying production line and a material storage tank. The pulverizing production line comprises a high-temperature smelting furnace and a pulverizing crucible; an automatic sealing cover is arranged at the top of the high-temperature smelting furnace, a smelting cavity of the high-temperature smelting furnace is connected with a nitrogen tank through a nitrogen pipe, and melt in the high-temperature smelting furnace is discharged into the powder preparation crucible through a heating type discharging pipe; the conveying production line comprises a powder recycling unit and a vacuum feeding machine. The high-temperature smelting furnace is filled with nitrogen and oxygen is isolated, the problem of oxidation of metal in the smelting process is greatly reduced or avoided, oxide floating and gathering are further avoided, the problem that a discharging pipe is blocked due to material blocking caused by oxide floating is solved, meanwhile, material output is constant through air pressure, and the production efficiency is improved. The discharging mode instead of a traditional mode of using a discharging valve is adopted for discharging, the problem that production is out of control due to the fact that high-temperature metal corrodes a control element of the discharging valve is thoroughly solved, the material output stability is high, and the production quality is improved.
Owner:ANHUI PIONEER NEW MATERIALS CO LTD

Pneumatic cyclone tower for explosive aluminum-magnesium dust treatment and dust removal method thereof

The invention relates to the technical field of non-ferrous metal dust treatment, and provides a pneumatic cyclone tower for explosive aluminum magnesium dust treatment and a dust removal method of the pneumatic cyclone tower. The spraying tower is fixedly mounted at the top of the base, and the inner wall of the center of the spraying tower is rotationally connected with a long rod; the windmill blades are fixedly mounted at the top end of the long rod, and a water sprayer is fixedly mounted on the inner wall of the spray tower. The motor drives the long rod to drive the windmill blades to rotate, the windmill blades are matched with the water sprayer to form spiral rotating airflow, and the collision fusion efficiency of dust and liquid drops is improved; the long rod synchronously drives the scraping plate to scrape dust accumulated on the tower wall, multi-stage filtration is achieved in cooperation with the filter screen, and waste water is recycled through the water return pipeline. The scheme solves the problems that existing equipment is low in dust removal efficiency and difficult to clean, and has the advantages of being efficient, low in energy consumption and easy to maintain.
Owner:SICHUAN WELLSTONE TECH CO LTD

Bypass type smoke exhaust system suitable for extra-long municipal and highway tunnels

The invention relates to the technical field of highway tunnel smoke exhaust systems, and discloses a bypass type smoke exhaust system suitable for extra-long and large municipal and highway tunnels, the bypass type smoke exhaust system comprises a ground, the upper side of the ground is fixedly connected with a tunnel body, and the left side of the interior of the tunnel body is fixedly connected with a connecting assembly; the connecting assembly is used for monitoring parameters such as smoke concentration and temperature in a tunnel in real time, a fixing box is fixedly connected to the left side of the upper portion of the ground, a partition plate is fixedly connected to the interior of the fixing box, a sealing ring is fixedly connected to the front side of the partition plate, and the sealing ring is fixedly connected to the front side of the interior of the fixing box; and a fixing frame is slidably connected to the interior of the sealing ring, and a filter screen is fixedly connected to the upper side of the interior of the fixing frame. Flue gas is effectively humidified and settled in the discharging process, the treatment effect of the smoke is further improved, the system can be adjusted in real time, and it is ensured that quick response is achieved when a fire disaster happens, and spraying of water mist is controlled.
Owner:CHINA RAILWAY LIUYUAN GRP CO LTD

Intelligent spraying dust falling device for building construction

The invention belongs to the technical field of dust falling devices, and particularly relates to an intelligent spraying dust falling device for building construction, which comprises a fence, a fixed plate and the like, a fixing plate is connected to the fence. The fixing plates are locked on the fence through the pin rods, every two adjacent water pipes are communicated through the corrugated pipes, water is conveyed into the water pipes, then the water flows into the corresponding guide pipes I along the water pipes and is finally sprayed out from the corresponding spray heads, and therefore spraying dust falling on a construction site is achieved; therefore, pipelines do not need to be additionally laid on the fences, the laying efficiency of the fences can be greatly improved, dust falling can be achieved, spraying dust falling can be conducted on dust drifting above the fences through the spray heads with upward openings, spraying dust falling can be conducted on dust drifting on the inner sides of the fences through the spray heads with downward openings, and the dust falling efficiency of the fences is improved. And therefore, the two spray heads on the same guide pipe I can perform spraying and dust falling on different areas.
Owner:CHENZHOU VOCATIONAL & TECH COLLEGE

Flash dryer

The utility model discloses a flash dryer, and belongs to the technical field of pneumatic drying equipment. The device mainly comprises a control system, a drying chamber, a feeding system, a stirring and crushing system, a fan system and a dust removal system, hot air of the fan system enters the drying chamber through an airflow guide device, and a spiral fluidization distance reduction assembly connected with the drying chamber in a sealed mode is installed at the upper end of the drying chamber; the spiral fluidization distance reducing assembly comprises a circular truncated cone wind shield, a large-caliber flanging connecting piece which is fixedly connected with the lower end of the circular truncated cone wind shield in a sealed manner, and a small-caliber flanging connecting piece which is fixedly connected with the upper end of the circular truncated cone wind shield in a sealed manner; and the airflow flowing out of the small-caliber flanging connecting piece is dedusted by the dedusting system. Due to the design of the spiral fluidization distance reducing assembly, the spiral fluidization distance reducing assembly plays a role in screw pitch extrusion and acceleration on airflow in the drying chamber, and the spiral fluidization distance reducing assembly is small in overall size, small in occupied area, high in flexibility, high in practicability, high in market competitiveness, wide in application range and particularly suitable for places with limited space such as laboratories and small factories.
Owner:YANG ZHOU FENG YI HANG ZHI NENG ZHUANG BEI YOU XIAN GONG SI

Dust falling device of coal washer

The utility model discloses a dust falling device of a coal washer, which relates to the technical field of coal treatment and comprises a device main body, the device main body comprises a detachable structure for maintenance, a filtering box body connected with the device main body, a dust falling box body connected with the filtering box body, a dust collection assembly connected with the dust falling box body, a dust falling assembly connected with the dust collection assembly and a filtering mechanism connected with the filtering box body; the dust suppression device has the advantages that smoke, dust and particulate matter in the device body are detected in real time through the smoke sensor, when it is detected that the concentration of the smoke, the dust and the particulate matter is higher than 3 mg / m < 3 >, a second motor in the dust suppression assembly is started immediately, the second motor drives a second rotating shaft to rotate clockwise from a vertical state to a transverse state, and the dust suppression effect is achieved. The processor starts the high-pressure pump, and the water outlet pipe and the mist nozzle at the bottom of the square water collecting plate suck water in the water tank for dust fall spraying.
Owner:SHANXI JIEXIU JINTAI COAL WASHING EQUIPMENT CO LTD

Pre-polymerization reactor, continuous bulk polymerization system and method and PMMA (polymethyl methacrylate) resin

The invention provides a prepolymerization reactor, a continuous bulk polymerization system and method and PMMA resin. The method comprises the following steps: mixing accurately metered polymeric monomers and auxiliaries, sequentially completing a prepolymerization reaction and a polymerization reaction in serially connected polymerization reactors, and then devolatilizing and granulating a polymerization product to obtain PMMA resin, and comprises the following steps: step 1, purifying and mixing reaction materials; step 2, prepolymerization reaction; step 3, polymerization reaction; step 4, devolatilization; and step 5, granulating. The method overcomes the defects that in the prior art, the polymerization conversion rate is low, the solvent usage amount is large, the molecular weight distribution of the product is wide, light transmittance and other properties cannot meet optical-grade application requirements, and the quality is difficult to accurately regulate and control. Through optimization of a formula and process conditions, a special process system design and combination of polymerization reactors, the contradiction between high conversion rate in the polymerization process and narrow molecular weight distribution of a PMMA product is solved; under the conditions of low solvent addition amount or no solvent, the high conversion rate is obtained, the molecular weight distribution of the polymerization product is narrow, the molecular weight is controllable, and the high-quality optical-grade PMMA resin product is obtained.
Owner:QUZHOU RES INST OF ZHEJIANG UNIV

Preheating and replacing method for pyrolysis process of rotary kiln and upgrading system

The invention discloses a rotary kiln pyrolysis process preheating and replacing method which comprises the following steps: replacing and preheating an upgrading system when a rotary kiln is started, performing low-load operation on the rotary kiln, heating the rotary kiln by a rotary kiln hot blast stove and a flue gas fan, closing a pipeline valve from a dry gas fan to a first dust remover, and performing low-load operation on the rotary kiln; a rotary kiln nitrogen replacement valve is slightly opened, nitrogen enters the rotary kiln through a dry gas guide screw for replacement and heat removal, an oil and gas pipeline is preheated, direct cooling tower spraying cooling water and indirect cooling tower circulating cooling water are put into use, a coal gas fan is started for system circulation, and an electrical tar precipitator outlet is opened to a rotary kiln starting line valve; the invention further discloses a rotary kiln quality improvement system, the rotary kiln pyrolysis process preheating and replacement method is adopted, the start-up time is effectively shortened, the investment and operation cost is saved, and meanwhile a foundation is laid for long-period stable operation of the system.
Owner:INNER MONGOLIA ZHUOZHENG COAL CHEM CO LTD +1

Chemical plant discharge filtering device with monitoring function

The invention relates to the technical field of chemical plant smoke filtering, in particular to a chemical plant discharge filtering device with a monitoring function, which comprises a barrel, a gas inlet pipe, a gas outlet pipe and the like, the barrel is communicated with the gas inlet pipe, and the top of the barrel is communicated with the gas outlet pipe. Indexes of pollutants such as sulfur dioxide, nitric oxide, carbon monoxide and carbon dioxide in flue gas can be detected through the flue gas sensor, when the flue gas sensor detects that the pollutants in the flue gas exceed the standard, the controller can control an electric guide rail to work, the electric guide rail drives a first push plate to move forwards, and a first sealing plate can also move forwards; the first sealing plate seals the exhaust pipe, real-time response can be achieved after the filter element is aged and breaks down, the filter element is replaced without shutdown under the condition that it is ensured that smoke does not leak, smoke which is not completely purified is prevented from being exhausted out, and therefore pollution to the environment can be avoided.
Owner:GANNAN UNIV OF SCI & TECH

Flue gas purification device for butadiene rubber processing

The invention discloses a flue gas purification device for butadiene rubber processing, and relates to the technical field of flue gas purification, the flue gas purification device comprises a filter box and a purification box, the filter box is fixedly connected to the top of the purification box, the bottom of the filter box communicates with the top of the purification box, and the two sides of the outer wall of the filter box are correspondingly connected with a flue gas inlet pipe and a flue gas exhaust pipe respectively; two sets of fixing frames are fixedly and symmetrically arranged in the filter box, each set of fixing frames comprises two fixing frames, a coarse filter screen and a fine filter screen are inserted between the two opposite sets of fixing frames, cleaning mechanisms are arranged on the two sides of the outer wall of the coarse filter screen and the two sides of the outer wall of the fine filter screen, and a spraying mechanism used for spraying smoke is installed on the inner bottom wall of the filter box. Through cooperation of the cleaning mechanism and the spraying mechanism, flue gas can be sprayed and purified when filtered, and impurities and particles attached to the coarse filter screen or the fine filter screen are brushed away, so that the flue gas purification effect is improved.
Owner:振华新材料(东营)有限公司

Vertical steam-water separator

The utility model discloses a vertical steam-water separator which comprises a tank body, the tank body is communicated with a steam inlet pipe, an exhaust pipe and a drain pipe, a baffle plate for dividing the tank body into an inner cavity and an outer cavity is arranged in the tank body, and a heat insulation material is packaged in the inner cavity, so that the baffle plate can be kept in a high-temperature state. And water vapor entering the tank body is prevented from being cooled and condensed on the surface of the baffle plate with relatively low temperature. The inner cavity is fixedly arranged on the tank body through two nested and separated barrels, a through hole is formed between the two barrels, high-temperature water in the steam-water separator can be kept for a period of time in the tank body through the two barrels, continuous evaporation of the high-temperature water is facilitated, after the liquid level exceeds the through hole, the electronic liquid level meter sends out a signal, the PLC control system opens the electronic valve, and the steam-water separator is started. The drainage work is completed through the siphon principle.
Owner:WUXI FUSI PACKAGING TECHNOLOGY CO LTD

Dedusting and filtering device for coal mine ventilation

The invention is applicable to the technical field of coal mining, and provides a dedusting and filtering device for coal mine ventilation, which comprises a dedusting box body arranged on one side of a fan for coal mine ventilation, and the inside of the dedusting box body is divided into a filtering cavity and a purifying cavity by a first partition plate; the air flow guide and primary dust removal assembly comprises a spiral flow guide shaft, an annular spray pipe and a spray head, and the spiral flow guide shaft is rotationally installed in the air inlet pipe through a bearing. The dedusting and filtering device for coal mine ventilation provided by the scheme realizes multi-stage purification of dust-containing airflow, reduces the influence of dust on equipment and personnel, has the characteristics of temperature control, water saving and the like, meets the actual requirements of coal mine ventilation and dedusting, and solves the problem that in the operation process of a current coal mine ventilation system, dust cannot be removed easily. And a large number of dust particles are always carried in the pumped air flow to influence the health of people.
Owner:济宁市金桥煤矿 +1

Trinitrile quenching purification device and process

The invention discloses a trinitrile quenching purification device and process. The device comprises a quenching tower, a dust removal spraying outer circulation system and a deamination spraying outer circulation system, a process gas inlet, a gas uniform distribution plate, 2-3 stages of differential dust removal spraying layers, a liquid receiving and gas distribution assembly, 3-5 stages of deamination spraying layers and a three-stage demister are sequentially arranged in the quench tower from bottom to top; instant cooling and deep solid removal of the trinitrile gas at 210-220 DEG C are realized through subsection spraying of micro fog and large fog drops, and the solid content of circulating liquid is less than or equal to 20ppm; multi-stage deamination spraying is matched with online pH control, deep absorption of NH3 is achieved, polymerization is inhibited, high-purity dilute ammonium sulfate liquid with the solid and polymer content being smaller than or equal to 5 ppm and the concentration being 20%-28% is produced, and the total yield of trinitrile is larger than or equal to 98%; the device is compact in structure, stable in operation and convenient for industrial application.
Owner:SHANGHAI LANKE PETROCHEM ENG & TECH +1

High-pressure air sand and chlorine removal system in salt cavern compressed air energy storage system

The utility model discloses a high-pressure air sand and chlorine removal system in a salt cavern compressed air energy storage system, which belongs to the technical field of energy storage and comprises a sand removal pry connected with a salt cavern injection-production tree, and a cyclone separator, a filter separator and a coalescence separator which are sequentially connected with the sand removal pry, the devices are connected through a pipeline. According to the system, high-pressure air sand removal and dechlorination are achieved, meanwhile, large pressure loss and temperature loss are avoided, the working environment of follow-up equipment can be guaranteed, the risk of corrosion and blockage is reduced, the safety and reliability of the equipment are improved, and the system is very suitable for being coupled into the energy release link of compressed air energy storage.
Owner:POWERCHINA HEBEI ELECTRIC POWER SURVEY & DESIGN INST CO LTD

Atomized cutting fluid discharge and treatment system and control system and control method thereof

The invention relates to the field of machining environment-friendly treatment, in particular to an atomized cutting fluid discharging and treating system and a control system and method thereof. The treatment system comprises a centralized exhaust system, a gas collecting hood, an induced draft fan, a wind pressure buffer device and an adjustable wind resistance structure in the buffer device. The induced draft fan is a frequency conversion fan, and the power can be automatically adjusted manually or through a state sensing device so as to adapt to the atomization state of the equipment. The air pressure buffering device is arranged between the induced draft fan and the main air pipe, airflow resistance is changed by adjusting an air resistance structure, and outlet air pressure stability is achieved. The control system comprises a plurality of sensors and is used for collecting wind pressure and flow speed in real time, and the controller generates a control instruction based on collected data and drives the wind resistance structure to dynamically respond to induced air changes. The system is high in adaptability, atomized cutting fluid gas generated by open-type equipment can be efficiently collected, the emission control effect is improved, and safe connection with a centralized exhaust system is guaranteed.
Owner:SHENZHEN RUIGESHENG EQUIP CO LTD