92results about How to "No backwash required" patented technology

The invention discloses a method for treating coking wastewater, which belongs to the field of wastewater treatment. The method comprises the following steps that: wastewater of a coking plant enters a regulating reservoir for the adjustment of water quality and water amount, and orderly enters a hydrolytic tank, an anaerobic tank, a preaeration tank, a preliminary sedimentation tank, an aerobic tank, a secondary sedimentation tank and a coagulation reaction tank for treatment, wherein the hydrolytic tank and the preaeration tank are filled with a bio-cord filler; the sludge of the preliminary sedimentation tank refluxes into the hydrolytic tank and the anaerobic tank respectively; a clarifying solution of the secondary sedimentation tank refluxes into the anaerobic tank; and the aerobic tank adopts a moving bed bio-film reactor. The bio-cord filler adopted in the invention has short film formation time and high biomass, does not need repeated washing, and has strong shock resistance; and the moving bed bio-film reactor can fix a large amount of nitrobacteria with long generation time, and has no the problem of blocking. The method can remove high-concentration ammonia nitrogen and organic substances in the coking wastewater, and the COD and the ammonia nitrogen of treated effluent can synchronously achieve the primary standard of the national integrated wastewater discharge standard (GB9878-1996).

The invention relates to a method for removing coke powder from raw oil and a device thereof and provides the method for removing the coke powder from the raw oil. The method comprises the following steps: cyclone separation is carried out on the raw oil containing the coke powder at the temperature of 40-600 DEG C to obtain the purified raw oil and sump oil containing the coke powder; and the sump oil containing the coke powder is deposited or filtered to obtain further recycled concentrated sump oil rich in coke powder. The invention also provides the device for removing the coke powder from the raw oil.

The invention relates to a biological drop filter and relative method for treating volatile organic waste gas, wherein it comprises that: feeding volatile organic waste gas into gas inlet tube (1) and main body (7) of reactor to be degraded and purified to be discharged from ventilate tube (9); the nutriment (11) enters into main body (7) via the nutriment distributor (18); the invention is characterized in that: the entrance of volatile organic waste gas is along the horizontal central line of main body 97); the nutriment (11) flows along the main body (7) from up to down, to form gas-liquid alternative contact in the main body (7). The invention can strengthen the biological degrade ability, with small area.

The invention discloses an AAO (Anaerobic-Anoxic-Oxic)-biological contact oxidation strengthened denitrification and dephosphorization device and a real-time control method of low C / N sewage treatment. The system is mainly composed of a raw water tank, an AAO reactor, an intermediate sedimentation tank, a biological contact oxidation tank, a settling zone, a discharged water tank, an online control box and a computer. The real-time control method is as follows: a DO sensor online collects concentrations of dissolved oxygen in grid cells of the biological contact oxidation tank, and the computer calculates and outputs the concentrations to control the nitrification process; a NH<4+> sensor, a NO<3-> sensor, a NO<2-> sensor and a TP sensor online collect the concentrations of ammonia nitrogen, nitrate, nitrite and total phosphorus in the discharged water tank, and the computer calculates and outputs according to the signals collected by the sensors to adjust the aeration amount, the reflux ratio of nitrifying liquid and water intake C / N. By adopting the online real-time control equipment, the system operation is optimized, the energy is saved, the consumption is reduced, the carbon source and the aeration amount are saved and the residual sludge is reduced.

The present invention discloses an integral multistage simultaneous nitrification and denitrification biological membrane system denitrification method and device, and belongs to the technical field of biological treatment of sewage, and the device is integrally constructed sequentially by a regulatory region, a multistage simultaneous nitrification and denitrification region, a flow diversion region and a precipitation region. The multistage simultaneous nitrification and denitrification region is in a multiple-groove pushing flow form, each reaction groove is provided with an aeration system and a multi-section water inlet device; the precipitation region is provided with an overflow port and an inclined plate sedimentation tank; a multi-section water inlet pipe connects each reaction groove of the regulatory region and the multistage simultaneous nitrification and denitrification region, by full use of the advantages of the simultaneous nitrification and denitrification and control of the operation conditions, the nitrification and denitrification are integrated in a reaction zone without adding of additional alkalinity and need of stirring, nitrification liquid reflux and sludge return systems, energy is saved, and cost is reduced, load of shock resistance of the system is enhanced by the multistage pushing flow structure, by multi-section water inlet design, the role of system denitrification is enhanced, the denitrification and carbon removal effects are stable, and maintenance and management are convenient.

The invention relates to a purification system integration process for algae, suspended matters and total phosphorus in a landscape water body. By applying the mechanisms of physical and chemical adsorption precipitation, physical magnetic adsorption, high-efficiency magnetic separation purification and centrifugal solid-liquid separation comprehensively, substances such as algae, suspended matters, total phosphorus and the like in water are adsorbed by a flocculating agent, a coagulant aid and magnetic seeds to form a flocculate, wherein the flocculate has the super-magnetism and is adsorbed by a magnetic drum of a high-efficiency magnetic separation device in the water, and adsorbates on the surface of the magnetic drum are removed by a continuous sludge scraper, namely the algae, the suspended matters, the total phosphorus and the like in the water are removed by purification and separation; and simultaneously, scraped sludge enters a sludge storage room through centrifugal separation and dehydration. The sewage purification process has the advantages of short residence time, high speed and small floor area, and realizes the high-efficiency and quick purification of water bloom substances such as the algae, the suspended matters and the total phosphorus in the landscape water body to control water quality in the water body effectively and avoid eutrophic phenomenon caused by alga propagation in the water body.

The invention relates to an A2 / O-bio-contact oxidation device and method based on coupling of partial nitrification and denitrifying phosphorous removal and belongs to the field of biological treatment of sewage. The device mainly comprises an A2 / O reactor (comprising an anaerobic zone, an anoxic zone and an aerobic zone), a wobble plate sedimentation tank, a biological contact oxidation tank and a sedimentation zone, wherein the aerobic zone of the A2 / O reactor is connected with the wobble plate sedimentation tank by virtue of an overflow baffle, the wobble plate sedimentation tank is connected with the biological contact oxidation tank, and the biological contact oxidation tank is connected with the sedimentation zone; filler made from carbon fibers is arranged in the biological contact oxidation tank and is mainly used for completing partial nitrification; a sludge reflux pump is communicated with the bottom of the anaerobic zone of the A2 / O reactor, a nitrification liquor reflux pump is connected with an effluent tank and the anoxic zone of the A2 / O reactor to realize denitrifying phosphorus removal. The A2 / O-bio-contact oxidation device and method fully take advantages of partial nitrification and denitrifying phosphorous removal and have the advantages of conservation of carbon source, low aeration rate, low sludge yield and the like.

The invention discloses a high-efficiency multistage demister. The high-efficiency multistage demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the inner surface of the outer barrel is provided with spiral fins; the gas riser pipe is fixed on a tray; the top of the gas riser pipe is provided with a sealing cover; and a rectifying passage is arranged on the circumference of the gas riser pipe. Thedemister of the invention realizes the separation of droplets from gas by rectification, acceleration and scraping effect in the flowing process of fluids. The demister of the invention has the advantages of simple structure, convenient installation and small possibility of scale formation, and can effectively realize gas-liquid separation and reduce entrainment of mist.

The invention discloses a high-efficiency defogging device. The high-efficiency defogging device comprises a plurality of parallel defogging components; each defogging component comprises a gas riserpipe and an outer barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, the gas riser pipe II is fixed on a tray, and the gas riser pipe I and the gas riser pipe II are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; and vanes arecircumferentially arranged on the gas riser pipe I at positions close to the slits. The high-efficiency defogging device of the invention realizes the separation of droplets from gas by multiple baffling, acceleration and scraping effect in the flowing process of fluids. The high-efficiency defogging device of the invention has the advantages of simple structure, small pressure drop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.

The invention discloses a strip-shaped slow-release scale inhibitor. The strip-shaped slow-release scale inhibitor is prepared from the following components in percentage by weight: 40% to 60% of scale inhibitor, 10% to 30% of adhesive, and 20% to 40% of water. In addition, the invention also discloses a preparation method of the strip-shaped slow-release scale inhibitor. The preparation method comprises the following steps of (1) fully stirring the scale inhibitor, the adhesive and the water, so as to form a uniform plastomer; (2) extruding and forming the plastomer in step (1), so as to obtain a wet material of the strip-shaped slow-release scale inhibitor; (3) drying the wet material of the strip-shaped slow-release scale inhibitor in step (2), so as to obtain the strip-shaped slow-release scale inhibitor. The strip-shaped slow-release scale inhibitor has the advantages that the preparation method is simple, the mechanical strength is high, and the lasting scale inhibiting effect is realized.

The invention discloses a self-control fluid jet and drainage lift pump, which comprises a fluid jet and drainage device and a delivery pump. The delivery pump is provided with a liquid level sensor; and the upper part of the delivery pump is provided with a vent hole which is in gas-tightness connection with the fluid jet and drainage device. Besides the functions of starting in a high liquid level and stopping in a low liquid level, the lift pump is also provided with an intelligent protection shutdown device which enables the lift pump to stop automatically after the medium is completely absorbed, thus, the long-range control can be realized, which can save electricity, manpower and material resources. According to the working condition environment, the vertical, horizontal, movable or fixed installation can be selected. The efficiency is generally improved by 3 to 5 percent, and is 10 to 30 percent higher than that of the traditional unsealed self-control self-suction pump, and the energy saving effect is obvious.

The invention relates to a suspended multi-pipe microporous aerator, which comprises an air inlet branch pipe, air inlet soft branch pipes, supporting pipes, an airflow distributor and rubber film sleeves. One end of each of the two air inlet soft branch pipes is communicated with the air inlet branch pipe through a tee; the rubber film sleeves are sleeved on the supporting pipes; both ends of the supporting pipes are fixed with the rubber film sleeves by clamping bands; airflow distributor ends of the rubber film sleeves are provided with self-closing micropores; the at least two intercommunication pipe in side-to side connection manner are fixed on a gas path intercommunication pipe; the other end of each of the two air inlet soft branch pipes is communicated with the gas path intercommunication pipe; and the turnings of the two air inlet soft branch pipes are sleeved with balancing weights respectively. The suspended multi-pipe microporous aerator has the advantages of convenient installation and maintenance, uniform aeration, no need of air purification and moderate cost.

The invention discloses a flue gas dedusting and desulfurizing tower and a flue gas dedusting and desulfurizing method. The flue gas dusting and desulfurizing tower comprises a pretreatment unit, an advanced treatment unit and a tower bottom liquid tank area, and the pretreatment unit is communicated with the advanced treatment unit by a flue gas pipeline. The pretreatment unit sequentially comprises a quenching and spraying area, a first-stage spraying area and a Venturi grating washing area from top to bottom; and the advanced treatment unit sequentially comprises a middle liquid tank area,a second-stage spraying area, an upper liquid tank area, a third-stage spraying area, a demisting area and a flue gas discharging area from bottom to top. The white smoke phenomenon of wet desulfurization is eliminated, so the white smoke phenomenon of a smoke discharging opening is significantly reduced; and the triple functions of flue gas dedusting, desulfurizing and advanced demisting are achieved in the tower, and all functional areas cooperate with each other and promote each other, so the occupied area of the tower is greatly reduced, and the cost for construction and reconstruction ofthe tower is significantly reduced.

The invention belongs to the technical field of wastewater treatment, and particularly relates to an aeration and filler integrated suspended lift mounting system. The system comprises an air intake system, a filler system and an aeration system; the air intake system is mounted over a water tank and comprises a plurality of air intake branches and a plurality of air intake branching tubes, and each air intake branch is connected with a plurality of the air intake branching tubes; the filler system is arranged inside the water tank and comprises biological filler and filler connecting tubes, and the biological filler is fixed between the air intake system and the aeration system through the filler connecting tubes; the aeration system is mounted at the bottom of the tank and connected with the air intake system through the air intake branching tubes. Aeration and filler are integrated to be applied to urban sewage treatment and treatment of many kinds of industrial wastewater, the aeration and filler systems are mounted in a supportless manner, and a short way which is simple, easy and good in treatment effect is provided for effective treatment of various types of wastewater.

The invention belongs to water purification equipment in the field of equipment and safety environmental protection and particularly relates to a continuously-operated activated carbon adsorption tower. The continuously-operated activated carbon adsorption tower consists of a cylinder body provided with a water inlet and a sample fetching opening, a discharging hopper, more than two porous platesfixed in the cylinder body, a water discharging device and a water collecting groove; the water inlet is located below the porous plate on the bottommost layer; the water discharging device and the water collecting groove are located above the cylinder body; a discharging opening is arranged at the bottom of the discharging hopper and the discharging opening is provided with a discharging valve; the porous plates are uniformly provided with special filtering water caps and the gaps of the special filtering water caps need to be less than grains of filtering materials; each porous plate is further provided with hoisting switching devices corresponding to holes on the porous plate; the hoisting switching devices of each porous plate are respectively fixedly arranged on a connecting rod which stretches to a tower top and can move up and down; and grain activated carbon with the certain thickness is filled on each porous plate to be used as the filtering materials. The continuously-operated activated carbon adsorption tower disclosed by the invention mainly can be used for solving the defects of a traditional activated carbon filtering tower and has the functions of sufficiently expressing the adsorption capability of the activated carbon, replacing the filtering materials and carrying out backwashing without stopping a machine, realizing the automatic replacing of the activated carbon in batches and the like.

The invention discloses a demister. The demister comprises several parallel demisting assemblies, each demisting assembly comprises a gas rising pipe and an outer cylinder, the outer cylinder is arranged on the outer side of the gas rising pipe and is at the same axis line as the gas rising pipe, the gas rising pipe is fixed on a tower disk, the top portion of the gas rising pipe is provided witha sealing cover plate, the circumference of the gas rising pipe is provided with several rectification channels, the rectification channels are horizontally embedded along a tangent direction of an outer wall of the gas rising pipe, a sidewall I of the rectification channels close to one side of the outer cylinder, the other sidewall II is intersectant to the wall of the gas rising pipe, and the rotation direction of the rectification channels is same; the top of the rectification channel is leveled with the sealing cover plate, and the bottom is intersectant to the wall of the gas rising pipe. The demister can realize separation of liquid drops and gas through rectification, acceleration and surface scraping effect of fluid during a flowing process, The demister has the advantages of simple structure, convenient installation, and difficult fouling, and reduces mist entrainment, and can effectively realize gas-liquid separation.

The invention discloses an integrated slow sand filtration water supply device, which belongs to water supply equipment and mainly solves the problem that the traditional slow sand filtration water supply device has a single structure and a single function. The integrated slow sand filtration water supply device comprises a water purification device, wherein the top part of one side of the water purification device is provided with a water distribution channel which is communicated with the top part of a filtration layer; the bottom part of the filtration layer is connected with a water collection channel which is communicated with a contact reaction area; the contact reaction area is communicated with a water storage area through an overflow weir; a lifting pump is arranged in the water storage area; the bottom part of the overflow weir is provided with a communication valve; a headstock gear controlling the communication valve is arranged outside the overflow weir; and a guide wall is arranged in the water storage area. The integrated slow sand filtration water supply device integrates water purification, sterilization, storage and lifting and has better purification effect, high water volume regulation capacity, small floor area, convenient management and no back flush. The device is particularly suitable for small-scale water purification and supply in villages, towns, military subcamps and the like.

This invention is self-controlling turbine synchronous discharging and absorbing pump. It includes pump body and absorb connecting pipe. The air outlet opening, which communicates to pump body internal cavity, is arranged on the upper part of pump body. The air outlet opening discharges air through a negative pressure device. The negative pressure device has a gas liquid separator, on which has at least one liquid level sensor. The bottom of the said gas liquid separator has one air absorbing opening. This invention has no etching and has long operational life span. It does not need the bottom valve and has high efficiency. This invention starts with high liquid level and stops with low liquid level. It also has intelligent machine stopping protection device. When the medium is empty, the machine stops automatically. It can control remotely. This invention can be assembled vertically and horizontally. It can be moved or fixed.

The invention discloses a shielding suspension type pump which comprises a delivery pump, a driving motor, a suspension supporting shielding pipe, a supporting plate, a cooling system, a lubricating oil pressurization and delivery device and a sealing filler pressurization and delivery device. The shielding suspension type pump is characterized in that a flange at the upper end of the suspension supporting shielding pipe is fixed on a supporting plate and the delivery pump is fixed on a flange at the lower end of the suspension supporting shielding pipe. The invention has very high vacuum height of suction and hydraulic efficiency, reduces the loss of transmission power of the transmission shaft, improves the efficiency and eliminates the pump shaft abrasion of the long-shaft pump, the broken shaft type fault masking adopts the suspension supporting shielding pipe, the driving motor and the delivery pump are fixed and a forced ventilation system is configured, so that the shielding suspension type pump can normally run under the harsh environment with high temperature and humidity.

The invention relates to a domestic wastewater standard recycling treatment system applicable to the northern countryside. The domestic wastewater standard recycling treatment system applicable to the northern countryside comprises a wastewater collection and pretreatment pool and wastewater treatment units; each wastewater treatment unit comprises a wastewater treatment pool, a water inlet pipe, a water distribution pipe and a plant purifying pool; a filtering packing layer is arranged in a filtering chamber and comprises a first pebble layer, a yellow sand layer and a second pebble layer from the top down in sequence; each water distribution pipe is positioned in the first pebble layer and connected with a submersible pump in a regulating reservoir through one water inlet pipe; an insulating layer is arranged on the outer surface of each of the wastewater collection and pretreatment pool, the wastewater treatment pools and the plant purifying pools. The invention solves the problem of difficulty in overwintering of domestic wastewater treatment projects in the northern countryside; outlet water reaches the primary standard A of the pollution discharge standard for municipal wastewater treatment plants and is recycled, so that water resource is saved; the system is low in construction cost, low in running cost and simple in maintenance and use, can be operated by farmers and be used for a long time, and does not require back wash.

The invention relates to a sewage treatment technology in environment engineering, in particular to household sewage treatment equipment. The interior of a stainless steel box body is divided into a first septic tank, a second septic tank, an anaerobic area, an anoxic area, an aerobic area, a precipitation area and a disinfection area by partitions from the front end to the rear end of the stainless steel box body; the anaerobic area, the anoxic area and the aerobic area are filled with suspension fillings; a first aeration barrel and a first aerator are vertically and fixedly arranged in theanoxic area; a second aeration barrel and a second aerator are vertically and fixedly arranged in the aerobic area; an air supply port of an air pump is communicated with an air injection pipe througha second air supply pipe via a part, close to the bottom in the precipitation area, of a rear pipe section of the air injection pipe and further communicated with the first septic tank and the precipitation area through the air injection pipe; a hydraulic solid-liquid phase separator is vertically and fixedly arranged in the middle in the precipitation area in an overhung manner; the aerobic areais communicated with a water inlet pipe of the hydraulic solid-liquid phase separator; and a water outlet pipe of the hydraulic solid-liquid phase separator is communicated with the disinfection area. The equipment is particularly applicable to countryside household treatment of domestic sewage.

The invention relates to a biological aerated filter which is provided with a suspended bed and used for sewage treatment. The biological aerated filter comprises a filter body, a water inlet pipe, an aeration pipe, a sludge discharge pipe, a suspended filler bed layer, a filter layer, a filter material baffle and a water outlet. The filter body is filled with suspended filler and light filter beads, during aeration and water incoming, the filler is naturally accumulated in the filter body respectively to form the suspended fixed bed and the filter layer, when sewage flows through the suspended bed upwards, biochemical treatment is performed under the action of a filler layer biological membrane, and when the treated sewage passes through the upper filter layer, SSs (suspended solids) in the sewage are further intercepted and removed; when water incoming and aeration are stopped, the filler of the suspended bed and the filter layer restores the loose suspension state, the intercepted SSs are deposited at the bottom of the filter body to be discharged out, and functions of the filter body are restored automatically. The biological aerated filter provided with the suspended bed has the advantages that the filter is simple in structure, convenient to operate, quick to start, wide in applicable inlet water SS range, free of backwashing and the like, and the filter has broad popularization and application prospects in small sewage treatment plants.

The invention discloses a high-efficiency rotary demister. The high-efficiency rotary demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and anouter barrel; the outer barrel is arranged on the outer side of the gas riser pipe and located on the same axis as the gas riser pipe; the inner surface of the outer barrel is provided with spiral fins; the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, the gas riser pipe I and the gas riser pipeII are connected with each other by a bearing, and the gas riser pipe II is fixed on a tray; and a rectifying passage is arranged on the circumference of the gas riser pipe I. The demister of the invention realizes the separation of droplets from gas by rectification, acceleration and scraping effect in the flowing process of fluids. The demister of the invention has the advantages of simple structure, convenient installation and small possibility of scale formation, and can effectively realize gas-liquid separation and reduce entrainment of mist.

The invention belongs to the technical field of environmental protection treatment, and particularly relates to an integrated graywater treating method and a system. The integrated graywater treating method comprises the steps of collection and regulation, biological oxidation treatment and solid-liquid separation, continuous flowing sand filtering advanced treatment and disinfection. In the invention, the living graywater with lower sewage concentration, such as waste water from showering and washing, waste water from kitchen and the like, is collected and reused for low-quality water-needing fields of toilet flushing, greening and the like in situ after being thoroughly purified, thus achieving the purposes of realizing recycling of water resources in a certain region, decreasing emission load of pollutants, and the like. The invention is characterize by compact process structure, small occupied area, convenient operation, simple management, low capital construction and running expenses, and the like.

The invention relates to an industrial wastewater treatment method and an industrial wastewater treatment device. The industrial wastewater is collected by using a collection tank of a workshop. With a centrifugal elevation pump, the wastewater is pumped into a treatment water tank of the industrial wastewater treatment device with a tubular membrane filtration assembly; sodium hydroxide or potassium hydroxide is added in a delivery pipe; sufficient reaction is carried out under the stirring of the centrifugal elevation pump, such that hydroxide deposit which is insoluble in water is produced; and the water obtained after reaction is filtered by using the industrial wastewater treatment device with the tubular membrane filtration assembly. The device comprises sequentially connected components of the collection tank, the delivery pipe, and a membrane filtration device. The elevation pump is arranged on the delivery pipe. The membrane filtration device comprises the treatment water tank. The membrane filtration assembly is arranged and immersed in the treatment water tank. The membrane filtration assembly is respectively connected with a pipe delivery system. An aeration device is arranged in the treatment water tank. The membrane filtration assembly is composed of a tubular membrane filtration unit. An opened frame is arranged on the outer periphery of the tubular membrane filtration unit. A tubular filtration membrane is arranged in a sealed state on a frame plane. A water outlet pipe is arranged on the frame. With the device, solid impurities can be effectively removed, and waste water can be really turned into a resource.

The invention relates to a biological immobilized type film biological unit reactor. The biological immobilized type film biological unit reactor comprises a pond body and is characterized in that a plurality of film units of a following structure and padding units of a following structure are adjacently arranged in the pond body, and every two adjacent units are separated through a protection net; the side faces of the film unit are formed by the protection nets in a defined mode, and film assemblies are arranged in the film units; the side faces of the padding units are formed by the protection nets in a defined mode, interception nets are arranged on the bottoms of the padding units, and each padding unit is filled with a plurality of biological carriers. According to the biological immobilized type film biological unit reactor, 30-40% of floor space can be saved, no sludge settling problems occur, MLSS concentration in the reaction pond can reach 10,000 mg / L or above, and the load impact resisting capacity is high. The removal rate of the biological immobilized type film biological unit reactor on a main pollutant COD is larger than or equal to 93%, and the removal rate on a main pollutant SS is equal to 100%.

The invention discloses an efficient demister. The demister comprises a plurality of demisting assemblies, wherein each demisting assembly comprises a riser and an outer cylinder, the outer cylinder is arranged on the outer side of the riser and located in the same axis with the riser, the riser is axially divided into an upper part and a lower part, the upper part is a riser I, the lower part isa riser II, the riser I and the riser II are connected through a bearing, the riser II is fixed on a tray, and rectifying channels are arranged on the circumference of the riser I. The demister can realize separation of drops from gas through rectification, acceleration and scraping effects of a fluid during flowing. The demister is simple in structure, convenient to mount, not prone to scaling and capable of effectively realizing gas-liquid separation and reducing entrainment.

The invention provides a method and a device for delaying coking unwatering cyclone decoking with less investment, low energy consumption and high decoking efficiency. The method for delaying coking unwatering cyclone decoking comprises the following steps: settling separation, one-stage or two-stage or multistage cyclone decoking, and effluent oil separation. The method and the device for delaying coking unwatering cyclone decoking has the following advantages that: the separation efficiency is high; the separation precision of unwatering fine coke solid particles is 5 microns; the removal efficiency of particles with the separation precision of 5 microns or more is more than 95%; other solid particle impurities are removed while the fine coke solid particles are removed; the pressure loss is small; the operation is simple and convenient; the operation cost is low; the device has simple structure and occupies small area.

The invention discloses a device for separating and recycling magnetic nanometer particles. The device comprises a cylindrical container internally provided with one or more annular runners, and a drive device controlling rotation of the annular runners. One or more sets of processing units are divided on the cylindrical container in the circumferential direction of the cylindrical container. Each processing unit comprises a magnetic separation area, a transition area and a disengaging area. The bottoms of the runners located at the magnetic separation areas communicate with a solution inlet pipe. A solution outlet pipe is further arranged at the bottom of the cylindrical container. The bottoms of the runners located in the disengaging areas communicate with a mud discharging device. Strong magnets are arranged in the magnetic separation areas. The invention further discloses a method for separating and recycling the magnetic nanometer particles. The method comprises the steps that a magnetic nanometer particle solution passes through runners of an externally-added magnetic field from bottom to top; after magnetic nanometer particle magnetic mud with the preset thickness is attached to the runners, the runners are switched to the position without the externally-added magnetic field; and the magnetic mud disengaging from the interiors of the runners is collected. Continuous separation can be achieved, back flushing is not needed during recycling, operation is simple, and the production efficiency is high.

The invention discloses a high-efficiency demister. The high-efficiency demister comprises a plurality of demisting components; each demisting component comprises a gas riser pipe and an outer barrel;the gas riser pipe is axially divided into an upper part and a lower part, the upper part is a gas riser pipe I, the lower part is a gas riser pipe II, and the gas riser pipe I and the gas riser pipeII are connected with each other by a bearing; the top of the gas riser pipe I is provided with an upper capping plate; the gas riser pipe I is circumferentially provided with a plurality of slits; vanes are circumferentially arranged on the gas riser pipe I at positions close to the slits; the part, located below a tray, of the gas riser pipe II is circumferentially and uniformly provided with aplurality of gas inlets; the part, located at the gas inlets, of the inner wall of the gas riser pipe II is provided with inflow gas deflectors; the inner surface of the outer barrel is provided witha groove; and the cross section shape of the groove is composed of an arc and a straight section. The high-efficiency demister of the invention has the advantages of simple structure, small pressuredrop, small possibility of scale formation, convenient installation, reduced mist entrainment and capacity of effectively realizing gas-liquid separation, and is especially applicable to occasions with large gas flow fluctuations.