WO2022179078A1 - Système de filtration par aspiration-soufflage - Google Patents

Système de filtration par aspiration-soufflage Download PDF

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Publication number
WO2022179078A1
WO2022179078A1 PCT/CN2021/116492 CN2021116492W WO2022179078A1 WO 2022179078 A1 WO2022179078 A1 WO 2022179078A1 CN 2021116492 W CN2021116492 W CN 2021116492W WO 2022179078 A1 WO2022179078 A1 WO 2022179078A1
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Prior art keywords
pipe
solid
cylinder
inner cylinder
suction
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Application number
PCT/CN2021/116492
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English (en)
Chinese (zh)
Inventor
陈旗新
蒋雨洁
张冠群
曾永平
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暨南大学
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Publication of WO2022179078A1 publication Critical patent/WO2022179078A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
    • B01D33/11—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for outward flow filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D33/503—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles the backwash arms, shoes acting on the cake side
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
    • B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
    • B01D33/66—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating
    • B01D33/663—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by gases or by heating by direct contact with a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Definitions

  • the present invention relates to the technical field of water, and more particularly, to a suction-blow filter system.
  • cyanobacteria are extremely small and sticky, they can easily contaminate the filter media, resulting in a sharp drop in filter performance.
  • Existing filtration technologies mostly use continuous pressure, which is particularly easy to plug the filter holes when filtering soft solids. Once plugged, the filter screen loses its effectiveness. Therefore, at present, filtration is rarely used to remove cyanobacteria, and only sand pools are used for water bodies with low cyanobacterial concentrations, but it will cause sand pollution.
  • a cyanobacteria filter device which filters impurities through a pre-filtering link, and is provided with a rubber scraper that can clean the cyanobacteria filter cloth, so as to keep the cyanobacteria filter medium clean, increase profit.
  • the device proposed in this invention only cleans the filter medium by a rubber scraper. Since the particle size of cyanobacteria is only a few microns, it is difficult to be effectively scraped by the rubber scraper when it is embedded in the filter cloth grid, so as to restore the efficiency of the filter cloth.
  • the present invention provides a suction-blow filtration system to overcome the low filtration efficiency and easy blockage of the soft solids described in the prior art.
  • a suction-blow filtration system including a drum filtration system for solid-liquid separation, a gas conveying system, and a drum filtration system for conveying raw liquid and discharging filtrate.
  • the liquid conveying system, the drum filtration system includes an outer cylinder that is sleeved and fixed on the base and a rolling inner cylinder whose cylinder wall is a filter screen. A closed space is formed between the outer cylinder and the rolling inner cylinder, and a negative The outer cylinder suction pipe of the solid body is pressed and sucked, and the rolling inner cylinder can be rolled in the circumferential direction.
  • the drum filter system also includes a solid dehydration and purge device, a solid desorption and stripping device, and a desorption solid collection device.
  • a suction-blow filtration system is provided with a drum filtration system that communicates with the gas conveying system and the liquid conveying system, and utilizes an outer cylinder, a rolling inner cylinder that rotates circumferentially relative to the outer cylinder, and a negative pressure outside the rolling inner cylinder.
  • the raw liquid is separated by pressure, and the raw liquid is introduced into the rolling inner cylinder through the liquid conveying system, and the outer cylinder is pumped through the gas conveying system to form a negative pressure environment.
  • the solids on the liquid surface filter are dehydrated and dried, and the solid desorption stripping device uses gas to blow the solids adsorbed on the filter screen by the negative pressure in the outer cylinder into the desorption solid collection device to realize the solid-liquid separation of the raw liquid.
  • the outer cylinder includes an upper cylinder and a lower cylinder which are sealedly connected, and the solid desorption and blow-off device is arranged on the inner wall of the outer cylinder, including a cavity structure isolated from the negative pressure of the upper cylinder, and a space between the sealing baffles.
  • the longitudinally distributed first opening structure, the cavity structure is enclosed by a sealing baffle and the inner wall of the upper cylinder to form a cavity, the solid dehydration and purging device and the gas conveying system for providing positive pressure.
  • the compressed air pipe is connected.
  • the solid desorption and blow-off device is enclosed by a sealing baffle and the inner wall of the upper cylinder to form a cavity to isolate the negative pressure of the upper cylinder, and the sealed solid desorption and blow-off device provides positive pressure to the first opening structure through a gas pressure pipe.
  • the first opening structure adopts a soft material to form a certain degree of sealing between the solid desorption and blow-off device and the outer wall of the rolling inner cylinder filter screen, without causing scratches and damage to the outer wall of the filter screen.
  • a second opening structure opposite to the first opening structure is provided on the end of the desorbed solid collecting device close to the filter screen, and the second opening structure is communicated with the conveying device through the desorbing solid collecting device. Collect the trachea.
  • the second opening structure arranged opposite to the first opening structure is butted with the first opening structure, which can efficiently inhale and collect the solids blown off by the gas from the screen, and the blown solids are transported through the collecting gas pipe.
  • the rolling inner cylinder is provided with a purging device air inlet pipe connected to the solid dehydration and purging device, and the head of the solid dehydration and purging device is not less than the length of the rolling inner cylinder filter screen and is parallel to the rolling inner cylinder roller.
  • the air-jet slits close to the inner wall of the rolling inner cylinder have a downward direction of jetting which is opposite to the rolling direction of the rolling inner cylinder and is nearly tangent to or at a small angle to the inner wall of the rolling inner cylinder.
  • the solid dehydration and purging device can maintain close-range air blowing to the filter screen when the rolling inner cylinder turns around, and the air-jet slit of the solid dehydration and purging device can carry out air blowing on the solids adsorbed on the filter screen by negative pressure.
  • the air blowing operation the unabsorbed solid and liquid are blown away together, so that the adsorbed solid is dehydrated and dried, and the solid-liquid separation of the solid is realized.
  • the gas delivery system is provided with a compressed air pipe, an air inlet pipe of the purging device, a collection air inlet pipe, a collection air outlet pipe and an outer cylinder air extraction pipe.
  • the air pipe provided in the gas conveying system connects the external air source with the drum filter system, and provides the required suction and air extraction functions for the operation of the drum filter system.
  • both ends of the rolling inner cylinder are provided with open tubular structures, the collecting air intake pipe is connected to one end of the collecting gas pipe in the rolling inner cylinder via the tubular structure, and the other end of the collecting gas pipe is connected to the collecting air pipe.
  • the air pipes are connected, and the air inlet pipe of the purging device is connected into the rolling inner cylinder through the tubular structure.
  • the collection air inlet pipe is a flow-restricted open air pipe
  • the collection air outlet pipe is connected to an external gas-solid separation device
  • the flow restriction of the collection air inlet pipe and the air extraction of the collection air outlet pipe make all the
  • There is a certain negative pressure in the collection trachea and the negative pressure in the collection trachea will suck all the solids blown off by the desorbed solid collection device from the filter screen into the collection trachea, and the collection trachea will transport the collected solids through the collection outlet pipe.
  • the suction pipe mouth of the desorption solid collection device is provided with a throttle valve for adjusting the gas volume, and the throttle valve installed at the suction pipe mouth of the desorption solid collection device can adjust the intake air volume,
  • the air inlet pipe of the purging device is connected to the external air supply device, and the air inlet pipe of the purging device provides positive pressure airflow for the solid dehydration purging device by connecting the external air supply device.
  • the air extraction pipe of the outer cylinder is arranged in communication with the upper cylinder and is not communicated with the solid desorption and stripping device, and the part where the upper cylinder communicates with the solid desorption and stripping device is provided with a gas pressure pipe, and the pressure gas pipe is connected with the external air supply device. connect.
  • the outer cylinder air suction pipe can form a negative pressure between the outer cylinder and the rolling inner cylinder by pumping air from the outer cylinder, so that the solids are adsorbed on the filter screen, and the water in the raw liquid can enter the outer cylinder through the filter screen to obtain a filter.
  • the clear liquid realizes the solid-liquid separation of the raw liquid.
  • the compressed air pipe connected with the external air supply device provides pressure gas for the solid desorption and stripping device, so that the solid desorption and stripping device can perform positive pressure air blowing operation through the first opening structure.
  • the liquid conveying system includes a raw water inlet pipe, a clean water outlet pipe and a sewage discharge pipe, the raw water inlet pipe passes into the rolling inner cylinder through the tubular structure, and the fresh water outlet pipe is communicated and arranged in the outer cylinder Above the position lower than the tubular structure, the sewage pipe is communicated and arranged at the bottom of the outer cylinder.
  • the raw liquid is sent into the rolling inner cylinder through the raw water inlet pipe, the solid-free filtrate filtered from the filter screen is discharged from the outer cylinder through the clean water outlet pipe, and the waste water generated by cleaning the outer cylinder is disposed outside the cylinder.
  • the drain pipe at the bottom of the cylinder is emptied.
  • a waterproof sealing ring is provided at the connection part of the rolling inner cylinder and the outer cylinder on the tubular structure, and two ends of the tubular structure are respectively provided with pulleys that are connected to the power equipment and driven synchronously.
  • the tubular structure is rolled and supported on at least two rollers, and the rollers are fixed on the roller bracket.
  • the waterproof sealing ring on the tubular structure can maintain the air-tightness of the space between the inner and outer cylinders, so that the negative pressure can be maintained, and the synchronously driven pulley can simultaneously drive the rolling inner cylinder to rotate through the tubular structures at both ends, and avoid
  • the inner cylinder filter is subjected to torque, which improves the stability of the rolling inner cylinder during rotation.
  • a liquid level sensor is provided in the rolling inner cylinder, and the liquid level sensor is used to control the liquid level height in the rolling inner cylinder.
  • the liquid level sensor arranged in the rolling inner cylinder can reflect the liquid level height in the rolling inner cylinder, control the raw water inlet valve to adjust the liquid level, maintain the liquid level in the rolling inner cylinder at the required height, and avoid the liquid level in the rolling inner cylinder. If the liquid level is too high, the raw liquid will overflow, causing equipment damage and safety accidents, or if the liquid level is too low, the filtration efficiency will be affected.
  • the present invention uses a fixedly arranged outer cylinder and a rolling inner cylinder that rotates circumferentially relative to the outer cylinder to filter the raw liquid by arranging a drum filtration system communicated with the gas conveying system and the liquid conveying system. Separation, solid-liquid separation is carried out on the solid-liquid separation on the rolling inner cylinder filter screen by the negative pressure of the outer cylinder, and then the solid is collected by blowing air, and the filter screen is kept in the best state, and the solid filtration is efficiently realized.
  • the device has good practical effect and high filtration efficiency, and is especially suitable for solving difficult problems like algae that can hardly be filtered by the existing filtration technology.
  • Fig. 1 is the structural representation of a kind of suction-blow filter system of the present invention
  • Fig. 2 is the sectional view of the suction-blow filter system of the present invention
  • Fig. 3 is the structural representation of the roller system of the suction-blow filter system of the present invention.
  • Fig. 4 is a cross-sectional view of the solid desorption and stripping device of the suction-blowing filter system of the present invention.
  • a suction-blow filtration system includes a drum filtration system for solid-liquid separation, a gas conveying system, and a liquid conveying system for conveying raw liquid and discharging filtrate for the drum filtration system.
  • the drum The filter system includes an outer cylinder 4 that is sleeved and fixed on the base 1 and a rolling inner cylinder 5 whose cylinder wall is a filter screen.
  • the solid outer cylinder suction pipe 12 and the rolling inner cylinder 5 can be rolled circumferentially.
  • the drum filter system also includes a solid dehydration and purge device 20, a solid desorption and stripping device 14, and a desorption solid collection device 16.
  • a suction-blow filtration system is provided with a drum filtration system that communicates with the gas conveying system and the liquid conveying system.
  • the raw liquid is introduced into the rolling inner cylinder 5, and the outer cylinder 4 is pumped through the gas delivery system and the air suction pipe 12 to form a negative pressure environment.
  • the filtrate is sucked into the gap between the inner and outer cylinders by the negative pressure between the inner and outer cylinders, while the solids thicker than the filter holes are intercepted by the filter screen, block the filter holes, and rotate with the drum; The sucked solids flow down with the water and continue to wait for the opportunity to be sucked up by the filter holes.
  • the outer cylinder 4 includes an upper cylinder 41 and a lower cylinder 42 that are sealed and connected, and the solid desorption and blow-off device 14 is arranged on the inner wall of the outer cylinder 4, including a cavity structure isolated from the negative pressure of the upper cylinder 41, and a space between the sealing baffles 15
  • the longitudinally extending first opening structure 141, the cavity structure is enclosed by the sealing baffle 15 and the inner wall of the upper cylinder 41 to form a cavity, and the cavity structure is communicated with the pressure gas pipe 13 for providing positive pressure in the gas delivery system.
  • the solid desorption and stripping device 14 is enclosed by the sealing baffle 15 and the inner wall of the upper cylinder 41 to form a cavity to isolate the negative pressure of the upper cylinder 41.
  • the opening structure 141 provides positive pressure, and the first opening structure 141 adopts a soft material to form a certain degree of sealing between the solid desorption blow-off device 14 and the outer wall of the filter screen of the rolling inner cylinder 5, without causing scratches and damage to the outer wall of the filter screen. .
  • a second opening structure 161 opposite to the first opening structure 141 is provided on the end of the desorbed solid collecting device 16 close to the filter screen, and the second opening structure 161 is communicated with the collecting gas pipe for transportation through the desorbing solid collecting device 16 17.
  • the second opening structure 161 disposed opposite to the first opening structure 141 is docked with the first opening structure 141, which can efficiently inhale and collect the solids blown off by the gas from the filter screen, and the blown solids pass through the collecting gas pipe 17 for shipping.
  • the rolling inner cylinder 5 is provided with a purging device intake pipe 21 connected to the solid dehydration and purging device 20, and the head of the solid dehydration and purging device 20 is not less than the length of the filter screen of the rolling inner cylinder 5 and is parallel to the rolling axis of the rolling inner cylinder 5.
  • the solid dehydration and purging device 20 can maintain close-range air blowing to the filter screen when the rolling inner cylinder 5 turns around. The solids are blown away, and the unabsorbed solids and liquids are blown away together, so that the adsorbed solids are dehydrated and dried, and the solid-liquid separation of the solids is realized.
  • the gas delivery system is provided with a compressed air pipe 13 , an air inlet pipe 21 of the purging device, a collection air inlet pipe 18 , a collection air outlet pipe 19 and an outer cylinder air extraction pipe 12 .
  • the air pipe provided in the gas delivery system connects the external air source with the drum filter system, so as to provide the required suction and air extraction functions for the operation of the drum filter system.
  • the two ends of the rolling inner cylinder 5 are provided with open tubular structures 6 , the collecting air intake pipe 18 is connected with one end of the collecting gas pipe 17 in the rolling inner cylinder 5 through the tubular structure 6 , and the other end of the collecting gas pipe 17 is connected with the collecting gas outlet pipe 19 In connection, the air inlet pipe 21 of the purging device is inserted into the rolling inner cylinder 5 via the tubular structure 6 .
  • the collecting air intake pipe 18 is a flow-restricted open air pipe, and the collecting air pipe 19 is connected to the external gas-solid separation equipment.
  • the negative pressure in the collection air pipe 17 will suck all the solids blown off the desorbed solids collection device 16 from the filter screen into the collection air pipe 17, and the collection air pipe 17 will collect the collected solids through the collection air pipe 19. Transport to the outside air.
  • the solid separation equipment collects solids, and the suction pipe port of the desorption solid collection device 16 is provided with a throttle valve for adjusting the air volume.
  • the air inlet pipe 21 of the purging device is connected to the external air supply device, and the air inlet pipe 21 of the purging device provides positive pressure airflow for the solid dehydration and purging device 20 by connecting the external air supply device.
  • the outer cylinder air extraction pipe 12 is communicated with the upper cylinder 41 and is not communicated with the solid desorption and stripping device 14.
  • the position where the upper cylinder 41 communicates with the solid desorption and stripping device 14 is provided with a compressed air pipe 13, and the compressed air pipe 13 is connected to the outside Air supply connection.
  • the outer cylinder air suction pipe 12 can form a negative pressure between the outer cylinder 4 and the rolling inner cylinder 5 by pumping the outer cylinder 4, so that the solids are adsorbed on the filter screen, and the water in the raw liquid can enter the external cylinder through the filter screen.
  • the filtrate is obtained, and the solid-liquid separation of the raw liquid is realized, and the pressure gas pipe 13 connected with the external air supply device provides pressure gas for the solid desorption and stripping device 14, so that the solid desorption and stripping device 14 can pass through the first.
  • the opening structure 141 implements a positive pressure blowing operation.
  • the liquid conveying system includes a raw water inlet pipe 9, a clean water outlet pipe 10 and a sewage discharge pipe 11.
  • the raw water inlet pipe 9 passes into the rolling inner cylinder 5 through the tubular structure 6, and the fresh water outlet pipe 10 is communicated and arranged on the outer cylinder 4 and is lower than the tubular shape.
  • the sewage pipe 11 is communicated and arranged at the bottom of the outer cylinder 4 .
  • the raw liquid is fed into the rolling inner cylinder 5 through the raw water inlet pipe 9, and the solid-free filtrate filtered from the filter screen is discharged from the outer cylinder 4 through the clean water outlet pipe 10, and the waste generated by cleaning the outer cylinder, etc.
  • the waste water is evacuated through the sewage pipe 11 arranged at the bottom of the outer cylinder 4 .
  • a waterproof sealing ring 22 is provided at the connection part of the rolling inner cylinder 5 and the outer cylinder 4 on the tubular structure 6, and the two ends of the tubular structure 6 are respectively provided with pulleys 8 that are connected to the power equipment and driven synchronously.
  • the rolling support is supported on at least two rollers 2 , and the rollers 2 are fixed on the roller bracket 7 .
  • the waterproof sealing ring 22 on the tubular structure 6 can maintain the air-tightness of the space between the inner and outer cylinders 4, so as to keep the negative pressure, and the synchronously driven pulley 8 can simultaneously drive the rolling inner cylinder through the tubular structure 6 at both ends.
  • the cylinder 5 is rotated, and the inner cylinder filter screen is prevented from being torqued, and the stability of the rolling inner cylinder 5 during rotation is improved.
  • the rolling inner cylinder 5 is provided with a liquid level sensor, and the liquid level sensor is used to control the liquid level height in the rolling inner cylinder 5 .
  • the liquid level sensor arranged in the rolling inner cylinder 5 can reflect the liquid level height in the rolling inner cylinder 5, control the raw water inlet valve to adjust the liquid level, and maintain the liquid level in the rolling inner cylinder 5 at the required level. The height of the liquid level is too high to avoid the overflow of the original liquid, or the liquid level is too low to affect the filtration efficiency.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

La présente invention se rapporte au domaine technique du traitement de l'eau, et plus spécifiquement, à un système de filtration par aspiration-soufflage, comprenant un système de filtration à tambour particulièrement approprié pour filtrer des solides mous et obstruants, à un système de distribution de gaz, et à un système de distribution de liquide. Le système de filtration à tambour est raccordé à un dispositif d'admission et d'échappement au moyen d'un système de commande d'aspiration et de soufflage. Le système de filtration à tambour commande et gère automatiquement, au moyen du système de distribution de liquide, l'entrée d'un liquide brut et la décharge d'un filtrat. Selon la présente invention, en fournissant le système de filtration à tambour en communication avec le système de distribution de gaz et le système de distribution de liquide, un liquide brut mou est séparé au moyen d'un tambour externe disposé à demeure et d'un tambour interne roulant ; la séparation solide-liquide est effectuée sur un tamis de filtration du tambour interne roulant au moyen d'une pression négative dans le tambour externe ; puis les solides sont collectés au moyen d'un soufflage d'air, et le tamis de filtration est nettoyé en même temps, de façon à maintenir au maximum l'efficacité élevée du tamis de filtration tout en obtenant une séparation solide-liquide à haut rendement. La présente invention est particulièrement appropriée pour résoudre la déshydratation d'une substance de type feuille ayant une teneur élevée en eau, telle que des cyanobactéries.
PCT/CN2021/116492 2021-02-26 2021-09-03 Système de filtration par aspiration-soufflage WO2022179078A1 (fr)

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CN202110215609.0A CN113101726B (zh) 2021-02-26 2021-02-26 一种吸吹过滤***
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CN115921496A (zh) * 2022-11-18 2023-04-07 安徽省蓝天能源环保科技有限公司 一种可实现餐厨垃圾固液分离的发酵处理装置
CN116692490A (zh) * 2023-08-01 2023-09-05 潍坊凯华碳化硅微粉有限公司 一种负压气力输送收集装置

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CN113101727B (zh) * 2021-02-26 2023-03-24 暨南大学 一种吸吹过滤***及应用其的吸吹过滤方法
CN114011138A (zh) * 2021-10-22 2022-02-08 江西永丰博源实业有限公司 一种真空转筒过滤机
CN114130102B (zh) * 2021-10-22 2024-01-05 北京恒泰源盛高科技有限公司 一种真空转筒过滤***

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