CN112239258B - Peripheral transmission type high-speed solid-liquid separation equipment of large-flow circulating granulation fluidized bed - Google Patents

Peripheral transmission type high-speed solid-liquid separation equipment of large-flow circulating granulation fluidized bed Download PDF

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Publication number
CN112239258B
CN112239258B CN202011089676.4A CN202011089676A CN112239258B CN 112239258 B CN112239258 B CN 112239258B CN 202011089676 A CN202011089676 A CN 202011089676A CN 112239258 B CN112239258 B CN 112239258B
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China
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stirring
zone
stirring shaft
inner cylinder
water
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CN112239258A (en
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胡瑞柱
黄廷林
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Xi'an Weiyuan Environmental Protection Technology Co ltd
Xian University of Architecture and Technology
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Xi'an Weiyuan Environmental Protection Technology Co ltd
Xian University of Architecture and Technology
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/0012Settling tanks making use of filters, e.g. by floating layers of particulate material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2433Discharge mechanisms for floating particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/28Mechanical auxiliary equipment for acceleration of sedimentation, e.g. by vibrators or the like
    • B01D21/286Means for gentle agitation for enhancing flocculation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/28Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using special binding agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention provides peripheral transmission type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment, wherein a stirring shaft is driven to rotate by a peripheral transmission type stirring driving motor; the peripheral transmission type stirring driving motor comprises a supporting rail, the stirring driving motor is arranged on the supporting rail and connected with a travelling frame, the travelling frame is connected with a central strut for transmission, and the central strut drives a stirring shaft to rotate; a water distribution device is arranged in the mixing zone; a water collecting device is arranged in the water collecting area; an inner cylinder mud particle flow guide device is arranged at the open top end of the inner cylinder, so that mud particles flowing out of the granulating and fluidizing zone can flow to the reflux zone; the top end of the middle cylinder is provided with an outer cylinder mud particle guide device, so that mud particles flowing out of the granulating and fluidizing region flow to a mud settling region. The peripheral transmission type driving motor not only meets the large flow requirement of stirring and mud scraping integration, but also increases the safety factor of the whole equipment, and the maximum diameter of the peripheral transmission type driving motor can exceed 20 m.

Description

Peripheral transmission type high-speed solid-liquid separation equipment of large-flow circulating granulation fluidized bed
Technical Field
The invention belongs to the field of water treatment, relates to a granulation fluidized bed, and in particular relates to high-speed solid-liquid separation equipment of a peripheral transmission type high-flow circulating granulation fluidized bed.
Background
In recent years, in the field of water supply treatment, water quality purification and wastewater recycling are increasingly emphasized with increasing national importance on the aspects of environment and efficient resource utilization. Therefore, research on new agents and new processes for water quality treatment is a development direction in the field of research on turbidity removal of water treatment.
Development and research of efficient sewage turbidity control devices are a necessary development trend. For single high-turbidity water, low-temperature low-turbidity water and high-algae water, various treatment technologies are developed at home and abroad and are applied to practical engineering. Such as synergistic clarification technology and agglomeration flocculation technology, is applied to low-temperature low-turbidity water; the improved vortex precipitation technology and the secondary coagulating sedimentation technology are applied to high turbid water, and the air floatation technology and ACTIFLO technology have stronger algae removal capability. The water quality conditions can alternately appear in surface water source water along with seasons, and at present, the main mode for solving the problems is to add pretreatment and strengthening treatment units, but the problems of complex purification process, large occupied area, inconvenient operation and operation management and the like are caused. The main way to solve the above problems is to add pretreatment and strengthening treatment units, but this causes a series of problems such as complex purification process, large occupied area, inconvenient operation and management, etc.
The utility model discloses a high low turbidity water quality purification device in the prior art, possesses reaction zone, separation zone and mud enrichment zone equally, has the throughput of high turbidity water and low temperature low turbidity water, but the device does not have the function of circulation granulation, and the processing flow is less, can't satisfy the processing demand of large-traffic.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide peripheral transmission type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment which has the capability of treating various water qualities and solves the technical problems that the existing granulation fluidized bed is small in water treatment amount and the required power is increased after improvement.
In order to solve the technical problems, the invention adopts the following technical scheme:
The peripheral transmission type high-speed solid-liquid separation equipment for the large-flow circulating granulation fluidized bed comprises a fluidized bed main body device, wherein the circulating granulation fluidized bed main body device comprises a base frame, a tank body is fixedly arranged on the base frame, and the tank body is sequentially provided with a sludge concentration area, a circulating granulation area, a separation area and a water collecting area from bottom to top;
The circulating granulation zone is internally provided with a middle cylinder and an inner cylinder, the tank body, the middle cylinder and the inner cylinder are coaxially arranged in sequence from outside to inside, a granulation fluidization zone is arranged in the inner cylinder, a reflux zone is arranged between the inner cylinder and the middle cylinder, and a sludge sedimentation zone is arranged between the middle cylinder and the tank body;
The top ends of the middle cylinder and the inner cylinder are opened, and the top end of the middle cylinder is higher than the top end of the inner cylinder, so that a backflow water inlet is formed;
the bottom end of the inner cylinder is open, the position of the bottom end of the middle cylinder, which is close to the bottom end of the inner cylinder, is contracted inwards, so that a backflow water outlet slit is formed between the bottom end of the inner cylinder and the contracted inner wall of the middle cylinder and is used for forming local negative pressure to provide backflow power;
The bottom end of the shrinkage inner wall of the middle cylinder is provided with a mixing zone with an open top end and a closed bottom end, and the backflow water outlet slit is communicated with the top end of the mixing zone;
The stirring device is arranged in the inner cylinder, the top end of a stirring shaft of the stirring device extends out of the top end of the inner cylinder, penetrates through the separation area and the water collecting area and extends out of the top end of the tank body, and the stirring shaft is driven to rotate by a peripheral transmission type stirring driving motor;
The peripheral transmission type stirring driving motor comprises a supporting rail, a roller which is driven by the stirring driving motor and can move on the supporting rail is arranged on the supporting rail, the roller is arranged at one end of a row frame, the other end of the row frame is connected with a central strut for transmission, and the central strut drives a stirring shaft to rotate;
The mixing area is internally provided with a water distribution device which is communicated with a water inlet pipe, and the water inlet pipe penetrates through the side wall of the tank body and extends out of the tank body;
A water collecting device is arranged in the water collecting area and is communicated with a water outlet pipe, and the water outlet pipe penetrates through the side wall of the tank body and extends out of the tank body;
The open top end of the inner cylinder is provided with an inner cylinder mud particle flow guiding device, so that mud particles flowing out of the granulating fluidization area can flow to the reflux area;
the top end of the middle cylinder is provided with an outer cylinder mud particle guide device, so that mud particles flowing out of the granulating and fluidizing area flow to a mud sedimentation area.
The invention also has the following technical characteristics:
the top end of a first stirring shaft sleeve is fixedly connected to the inner top wall of the tank body, and the stirring shaft penetrates through the first stirring shaft sleeve and can rotate in the first stirring shaft sleeve;
The inner cylinder mud particle flow guiding device comprises one end of a plurality of first pipe bodies which are fixed on the side wall of the bottom of the first stirring shaft sleeve and are uniformly distributed along the radial direction, the other end of each first pipe body is fixed on the inner cylinder, the other end of each first pipe body is open, a first inclined plate is arranged in the first pipe body, and a plurality of first perforations are formed in the bottom of the first pipe body;
The outer barrel mud particle flow guiding device comprises one end of a plurality of second pipe bodies which are uniformly distributed along the radial direction and fixed on the side wall of the bottom of the first stirring shaft sleeve, the other end of each second pipe body is fixed on the middle barrel, the other end of each second pipe body is open, a second inclined plate is arranged in the second pipe body, and a plurality of second perforations are formed in the bottom of the second pipe body.
The inner diameters of the first pipe body and the second pipe body gradually increase outwards along the radial direction from the first stirring shaft sleeve.
A stirring blade is arranged on a stirring shaft in the granulating and fluidizing zone in the inner cylinder; a mud scraping plate arranged on the inner side of the bottom of the tank body is arranged in the sludge concentration area; the bottom of the stirring shaft is rotatably arranged on the tank body at the bottom of the sludge concentration zone, the bottom of the stirring shaft is fixedly connected with the sludge scraping plate, and the single stirring driving motor drives the stirring blades and the sludge scraping plate to rotate together through the stirring shaft.
A suspension layer filtering solid-liquid separation device is arranged in the separation area of the fluidized bed main body device;
The suspension layer filtering solid-liquid separation device is divided into an upper part and a lower part, wherein the upper part is a static suspension layer, the lower part is an agitating suspension layer, an isolation screen is arranged above the static suspension layer, and the edge of the isolation screen is fixedly arranged on the inner wall of the tank body of the separation zone;
The stirring suspension layer is internally provided with a stirring shaft connecting sleeve fixedly sleeved on the stirring shaft, the bottom end of the stirring shaft connecting sleeve is fixedly provided with a crisscross support frame, and a plurality of filter layer stirring blades positioned in the stirring suspension layer are uniformly and fixedly distributed on the crisscross support frame along the axial direction;
the single stirring driving motor drives the filter layer stirring blade, the stirring blade and the mud scraping plate to rotate together through the stirring shaft.
The tank body is connected with the middle cylinder and the middle cylinder is connected with the inner cylinder through rib plates.
The water distribution device comprises a water distribution cavity formed by a pair of water distribution plates, a plurality of water distribution branch pipes are communicated with the water distribution cavity, the end parts of the water distribution plates, extending out of the top of the water distribution cavity, of the water distribution branch pipes are closed, and a plurality of water distribution holes are uniformly formed in the side edges of the water distribution plates; the center of the water distribution plate is provided with a second stirring shaft sleeve, and the stirring shaft penetrates through the second stirring shaft sleeve and the water inlet pipe and can rotate in the second stirring shaft sleeve and the water inlet pipe; a sliding sealing sleeve is arranged between the bottom of the water inlet pipe and the stirring shaft.
The sludge concentration area in be provided with the support frame, the top of support frame supports in the bottom of mixing the district, the bottom mounting of support frame is on jar internal wall.
The water collecting device comprises a plurality of communicated water collecting pipes which are communicated with the water outlet pipe, and the middle part of each water collecting pipe is provided with a plurality of water collecting holes.
The water collecting holes are formed at an angle of 45 degrees.
Compared with the prior art, the invention has the following technical effects:
As the diameter of the fluidized bed equipment is much larger than that of the traditional fluidized bed equipment, a mud particle guide device is additionally arranged at the tops of the inner cylinder and the middle cylinder, so that mud particles are prevented from being deposited in a circulating granulation area, a particle circulating fluidization structure is designed between the inner cylinder and the middle cylinder, and mud particles formed in the inner cylinder of the fluidized bed are recycled between the inner cylinder and the middle cylinder, so that suspended matters are continuously replenished in the inner cylinder, the growth and updating of mud particles in the inner cylinder are ensured, and the problems that the suspended matters are insufficient in supply and the particles in a separation area cannot grow are solved.
Because the diameter of the fluidized bed equipment is much larger than that of the prior fluidized bed equipment, the perforated water distribution device is arranged on the water inlet pipe, so that the water inlet of the equipment is uniform, and the holes of the water distribution device are arranged below the inclined part, so that mud above the water distribution device is prevented from entering the pipeline. The water outlet pipe is provided with a perforated water collecting device, and water in all directions is collected through the pressure of the equipment, so that the water is conveniently and rapidly discharged.
And (III) the peripheral transmission type driving motor not only meets the high-power requirement of stirring and mud scraping integration, but also increases the safety coefficient of the whole equipment. The overall height of the device is reduced, and the installation height of the device is reduced. Meanwhile, the problem of water leakage of the bottom motor is avoided, the workload of equipment installation and later maintenance is reduced, the operation is simpler and more convenient, the cost is reduced, the energy consumption is reduced, and the device can be widely popularized and applied.
The invention has good treatment effect on various water qualities. When the water quality with higher content of organic particles and lower density of suspended matters is treated, the device operates mainly by sand-adding circulation granulation, and high-density cores are provided for particles in a separation area by adding micro sand, so that high-density particles are generated; the stirring and separating action is enhanced through the particle circulation slit and the side wall of the mud-water separator, so that the micro sand is recycled; when water with higher content of soluble organic matters is treated, the device operates mainly by powder carbon cyclic granulation, and the particle density of a suspension layer is improved by adding powder carbon with relatively higher encryption degree; and the stirring and separating action is enhanced through the particle circulation slit and the side wall of the mud-water separator, so that the powdered carbon is recycled.
(V) the separation zone of the present invention may be equipped with no separation device or may be equipped with a separation device. When the separation device is installed, a vertical vortex reinforced separation device can be used, a suspension layer filtering solid-liquid separation device can be used, different devices can be selected according to different water qualities and requirements of effluent turbidity, and the separation device can be also not installed. The vertical vortex reinforced separation device can generate vertical vortex, has the effect of secondarily promoting growth of small particles entering the device, improves the yield of large particles, and improves the separation efficiency. The suspension layer filtering solid-liquid separation device can effectively intercept tiny particles which cannot be removed at the bottom of the fluidized bed, so that the turbidity of effluent and suspended matters are obviously reduced, and the treatment effect is more obvious.
The suspension layer filtering solid-liquid separation device can effectively intercept tiny particles which cannot be removed at the bottom of the fluidized bed, so that the turbidity of effluent and suspended matters are obviously reduced, and the treatment effect is more obvious. The present invention makes good use of the high density properties of the granules rising from the bottom granulation zone to the separation zone. The fine particles in the raw water gradually form spherical bodies with larger effective density through the agglomeration and flocculation process in the granulation area. Larger spherical particles are directly turned into the sludge concentration area after passing through the inner cylinder, tiny particles which cannot be removed at the bottom enter the suspension layer filtering separation area, and the tiny particles can be trapped by the dense suspension layer after stirring the suspension layer. If there are particles that are not trapped, they are also trapped when they rise through the stationary suspension layer, which ensures a safe height. Through the entrapment to the granule, static suspension layer density increase can drop to stirring part, because the stirring effect, the granule surface mud that drops can drop to the bottom, and suspended material can continue to rise to the top suspension layer because the density diminishes, guarantees that the suspension layer can have certain suspension height all the time. The suspension layer can continuously realize the interception of small particles through the processes of continuous filtration, density increase, mud surface falling-density reduction.
Drawings
FIG. 1 is a schematic diagram of the peripheral drive type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment.
Fig. 2 is a schematic structural view of a middle drum mud particle diversion apparatus.
Fig. 3 is a schematic structural view of the outer cylinder mud particle diversion apparatus.
Fig. 4 is a schematic structural diagram of a perforated water distribution device.
Fig. 5 is a schematic structural view of the perforated water collecting device.
FIG. 6 is a schematic diagram of a suspension layer filtration solid-liquid separation device.
The meaning of each reference numeral in the figures is: 1-pedestal, 2-tank, 3-sludge concentration zone, 4-circulation granulation zone, 5-separation zone, 6-water collecting zone, 7-middle cylinder, 8-inner cylinder, 9-granulation fluidization zone, 10-backflow zone, 11-sludge sedimentation zone, 12-backflow water inlet, 13-shrinkage inner wall, 14-backflow water outlet slit, 15-mixing zone, 16-water inlet pipe, 17-water outlet pipe, 18-stirring device, 19-stirring shaft, 2002-stirring driving motor, 21-mud scraper, 22-suspension layer filtration solid-liquid separation device, 23-stirring blade, 24-water distribution device, 25-water collecting device, 26-supporting frame, 27-mud discharging pipe, 28-inner cylinder mud particle guiding device, 29-outer cylinder mud particle guiding device, 30-first stirring shaft sleeve, 31-second stirring shaft sleeve and 34-rib plate;
2001-supporting rail, 2002-stirring driving motor, 2003-row frame, 2004-center pillar, 2005-roller;
2201-a static suspension layer, 2202-an agitating suspension layer, 2203-an isolating screen, 2204-light suspended beads, 2205-a stirring shaft connecting sleeve, 2206-a crisscross supporting frame and 2207-a filter layer stirring blade;
2401-a water distribution plate, 2402-a water distribution cavity, 2403-a water distribution branch pipe, 2404-a water distribution hole and 2405-a sliding seal sleeve;
2501-water collecting pipe, 2502-water collecting hole;
2801-first tube, 2802-first inclined plate, 2803-first perforation;
2901-second pipe body, 2902-second sloping plate, 2903-second perforation.
The following examples illustrate the invention in further detail.
Detailed Description
All the components and devices of the present invention are known in the art unless otherwise specified.
The following specific embodiments of the present application are provided, and it should be noted that the present application is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of the present application fall within the protection scope of the present application.
Example 1:
The embodiment provides high-speed solid-liquid separation equipment of a peripheral transmission type high-flow circulating granulation fluidized bed, which is shown in fig. 1 to 6, and comprises a fluidized bed main body device, wherein the fluidized bed main body device comprises a base frame 1, a tank body 2 is fixedly arranged on the base frame 1, and the tank body 2 is sequentially provided with a sludge concentration zone 3, a circulating granulation zone 4, a separation zone 5 and a water collecting zone 6 from bottom to top;
A middle cylinder 7 and an inner cylinder 8 are arranged in the circulation granulating zone 4, the tank body 2, the middle cylinder 7 and the inner cylinder 8 are coaxially arranged in sequence from outside to inside, a granulating and fluidizing zone 9 is arranged in the inner cylinder 8, a reflux zone 10 is arranged between the inner cylinder 8 and the middle cylinder 7, and a sludge sedimentation zone 11 is arranged between the middle cylinder 7 and the tank body 2;
the top ends of the middle cylinder 7 and the inner cylinder 8 are opened, and the top end of the middle cylinder 7 is higher than the top end of the inner cylinder 8, so that a return water inlet 12 is formed;
The bottom end of the inner cylinder 8 is open, the position of the bottom end of the middle cylinder 7 close to the bottom end of the inner cylinder 8 is contracted inwards, so that a backflow water outlet slit 14 is formed between the bottom end of the inner cylinder 8 and the contracted inner wall 13 of the middle cylinder 7 and is used for forming local negative pressure to provide backflow power;
the bottom end of the shrinkage inner wall 13 of the middle cylinder 7 is provided with a mixing zone 15 with an open top end and a closed bottom end, and a backflow water outlet slit 14 is communicated with the top end of the mixing zone 15;
The stirring device 18 is arranged in the inner cylinder 8, the top end of a stirring shaft 19 of the stirring device 18 extends out of the top end of the inner cylinder 8, passes through the separation area 5 and the water collecting area 6, extends out of the top end of the tank body 2, and the stirring shaft 19 is driven to rotate by a peripheral transmission type stirring driving motor 20;
The peripheral transmission type stirring driving motor 20 comprises a supporting rail 2001, a roller 2005 which is driven by the stirring driving motor 2002 and can move on the supporting rail 2001 is arranged on the supporting rail 2001, the roller 2005 is arranged at one end of a row frame 2003, the other end of the row frame 2003 is connected with a center pillar 2004 for transmission, and the center pillar 2004 drives a stirring shaft 19 to rotate;
A water distribution device 24 is arranged in the mixing zone 15, the water distribution device 24 is communicated with the water inlet pipe 16, and the water inlet pipe 16 penetrates through the side wall of the tank body 2 and extends out of the tank body 2;
A water collecting device 25 is arranged in the water collecting area 6, the water collecting device 25 is communicated with a water outlet pipe 17, and the water outlet pipe 17 penetrates through the side wall of the tank body 2 and extends out of the tank body 2;
An inner cylinder mud particle flow guide device 28 is arranged at the open top end of the inner cylinder 8, so that mud particles flowing out of the granulating and fluidizing zone 9 can flow to the reflux zone 10;
The top end of the middle cylinder 7 is provided with an outer cylinder mud particle guide device 29, so that mud particles flowing out of the granulation fluidization area 9 flow to the mud sedimentation area 11.
As a preferable aspect of this embodiment, the height of the tank 2 is generally 8 to 10m. The diameter of the tank 2 can be up to 20m at maximum, due to the increased flow to be carried and the use of peripheral drive sludge scraping.
In this embodiment, the support rail 2001 may be fixed to the side wall of the top of the tank 2 by a tripod, or may be fixed by other fixing methods as needed. The row frame 2003 is a stainless steel row frame as commonly known in the art. When the peripheral transmission type stirring driving motor 20 works, the stirring driving motor 2002 is electrified to drive the idler wheel 2005 to slide on the supporting track 2001, the running frame 2003 is driven to rotate in the sliding process, and the stirring shaft 19 is driven to rotate by the rotation of the running frame 2003, so that the stirring and mud scraping processes are completed.
As a specific scheme of the embodiment, the top end of the first stirring shaft sleeve 30 is fixedly connected to the inner top wall of the tank body 2, and the stirring shaft 19 passes through the first stirring shaft sleeve 30 and can rotate in the first stirring shaft sleeve 30;
The inner cylinder mud particle diversion device 28 comprises one end of a plurality of first pipe bodies 2801 which are fixed on the side wall of the bottom of the first stirring shaft sleeve 30 and are uniformly distributed along the radial direction, the other end of each first pipe body 2801 is fixed on the inner cylinder 8, the other end of each first pipe body 2801 is open, a first inclined plate 2802 is arranged in the first pipe body 2801, and a plurality of first through holes 2803 are formed in the bottom of the first pipe body 2801;
The outer cylinder mud particle flow guiding device 29 comprises one end of a plurality of second pipe bodies 2901 which are fixed on the side wall of the bottom of the first stirring shaft sleeve 30 and uniformly distributed along the radial direction, the other end of each second pipe body 2901 is fixed on the middle cylinder 7, the other end of each second pipe body 2901 is open, a second inclined plate 2902 is arranged in each second pipe body 2901, and a plurality of second perforations 2903 are formed in the bottom of each second pipe body 2901.
Preferably, the inner diameters of first tube 2801 and second tube 2901 gradually increase radially outward from first stirring shaft sleeve 30. So that the muddy water can flow from inside to outside along the pipe body better.
The first and second perforations 2803 and 2903 can ensure that the muddy water can flow upward,
The first and second inclined plates 2802 and 2902 are capable of inclined plate trapping of sludge particles to flow to the recirculation zone 10 and the sludge settling zone 11.
As a preferable scheme of the embodiment, a stirring blade 23 is arranged on a stirring shaft 19 in the granulating and fluidizing zone 9 in the inner barrel 8; a mud scraping plate 21 arranged on the inner side of the bottom of the tank body 2 is arranged in the sludge concentration zone 3; the bottom of the stirring shaft 19 is rotatably arranged on the tank body 2 at the bottom of the sludge concentration zone 3, the bottom of the stirring shaft 19 is fixedly connected with the scraper 21, and the stirring blades 23 and the scraper 21 are simultaneously driven to rotate together by a single stirring driving motor 2002 through the stirring shaft 19.
As a preferable mode of the present embodiment, a suspension layer filtration solid-liquid separation device 22 is provided in the separation zone 5 of the fluidized bed main body device;
The suspension layer filtering solid-liquid separation device 22 is divided into an upper part and a lower part, the upper part is a static suspension layer 2201, the lower part is an agitating suspension layer 2202, an isolation screen 2203 is arranged above the static suspension layer 2201, and the edge of the isolation screen 2203 is fixedly arranged on the inner wall of the tank body 2 of the separation zone 5;
The static suspension layer 2201 and the stirring suspension layer 2202 are filled with floating light suspension beads 2204, a stirring shaft connecting sleeve 2205 fixedly sleeved on the stirring shaft 19 is arranged in the stirring suspension layer 2202, a crisscross support frame 2206 is fixedly arranged at the bottom end of the stirring shaft connecting sleeve 2205, and a plurality of filter layer stirring blades 2207 positioned in the stirring suspension layer 2202 are uniformly and fixedly distributed on the crisscross support frame 2206 along the axial direction;
the single agitation driving motor 2002 simultaneously rotates the filter layer agitation blade 2207, the agitation blade 23, and the mud scraper 21 via the agitation shaft 19.
As a preferable mode of this embodiment, the tank body 2 and the middle cylinder 7 and the inner cylinder 8 are connected by the rib 34. The diameters of the tank body 2, the middle cylinder 7 and the inner cylinder 8 are increased due to the increase of the flow to be carried, and the rib 34 can fix the three more firmly.
As a specific scheme of the embodiment, the water distribution device 24 includes a water distribution cavity 2402 formed by a pair of water distribution plates 2401, a plurality of water distribution branch pipes 2403 are communicated with the water distribution cavity 2402, the end parts of the water distribution plates 2401 extending out of the top of the water distribution cavity 2402 of the water distribution branch pipes are closed, and a plurality of water distribution holes 2404 are uniformly formed on the side edges; the center of the water distribution plate 2401 is provided with a second stirring shaft sleeve 31, and the stirring shaft 19 passes through the second stirring shaft sleeve 31 and the water inlet pipe 16 and can rotate in the second stirring shaft sleeve 31 and the water inlet pipe 16; a sliding sealing sleeve 2405 is arranged between the bottom of the water inlet pipe 16 and the stirring shaft 19.
Preferably, a supporting frame 26 is arranged in the sludge concentration zone 3, the top end of the supporting frame 26 is supported at the bottom of the mixing zone 15, and the bottom end of the supporting frame 26 is fixed on the inner wall of the tank body 2.
As a specific scheme of this embodiment, the water collecting device 25 includes a plurality of water collecting pipes 2501 which are communicated, the water collecting pipes 2501 are communicated with the water outlet pipe 17, and a plurality of water collecting holes 2502 are formed in the middle of the water collecting pipes 2501.
Preferably, the water collection hole 2502 is opened at an angle of 45 °. So that the water collection is more smooth.
As a preferred solution of this embodiment, the inner diameter of the mixing zone 15 is smaller than the inner diameter of the inner cylinder 8, and the bottom of the tank 2 is provided as a conical bucket bottom.
As a preferable scheme of the embodiment, a sludge discharge pipe 27 which is communicated with the sludge concentration zone 3 in the tank body 2 is arranged on the bottom of the tank body 2. In this embodiment, after the sludge particles in the inner cylinder 8 and the middle cylinder 7 reach dynamic balance, part of the sludge particles are turned over to the sludge sedimentation zone 11, and when the sludge in the sludge sedimentation zone 11 is accumulated to a certain height, the sludge is discharged from the sludge discharge pipe 27.
In this embodiment, the stirring blades 23 are installed at a certain interval, the uppermost stirring blade 23 does not exceed the top end of the inner cylinder 8, and the lowermost stirring blade 23 is just arranged at the position of the particle circulation slot 14, so as to play a role in enhancing the side wall and separating mud from water. As a preferable mode of the present embodiment, the stirring blade 23 may be provided in a mechanical stirring mode such as inclined paddle stirring or rotary paddle stirring.
In this embodiment, the top end of the middle cylinder 7 has a certain adjustable height from the top end of the inner cylinder 8, and the middle cylinder 7 has a certain adjustable height from the bottom end of the separation zone 5.
When the device is used, micro sand, powdered carbon and other medicaments can be added into raw water according to the need, the raw water enters the tank body 2 through the water inlet pipe 16, and continuously rises in the granulation fluidization area 9 of the circulation granulation area 4 under the stirring of the stirring blade 23, the particles gradually become larger, the sludge particles in the granulation fluidization area 9 in the inner cylinder 8 reach dynamic balance under the action of water inflow power and self gravity, the formed partial sludge particles rise to the top of the inner cylinder 8 along with water flow, and before reaching the top of the middle cylinder 7, the sludge particles turn down through the inner cylinder sludge particle guide device 28, and enter the interlayer reflux area 10 between the inner cylinder 8 and the middle cylinder 7 for reflux circulation granulation.
When the mud water is circulated and flows back to the backflow water outlet slit 14, negative pressure is locally formed, and micro sand and/or powdery carbon are separated from sludge nucleus bodies through the reinforced stirring action of the side wall, so that the micro sand and/or powdery carbon can be recycled. The micro sand and the sludge particles flow back to the granulating and fluidizing zone 9 in the inner cylinder 8 again, and the large particles are turned over and fall down through the middle cylinder sludge particle guide device 29 when the height of the suspension layer reaches the top end of the middle cylinder 7, and enter the sludge concentration zone 3 from the sludge sedimentation zone 11 until the large particles are settled to the bottom end of the tank body 2.
After the flow is guided by the inner cylinder mud particle guiding device 28 and the middle cylinder mud particle guiding device 29, if a small amount of tiny particles continue to rise to the separation zone 5 along with the water flow. In the suspension layer filtration solid-liquid separation device 22 entering the separation zone 5, small particles are trapped by the light suspension beads 2204 in the dense agitation suspension layer 2204 by the agitation of the filter layer agitation blades in the agitation suspension layer 2204 as the water sequentially passes through the agitation suspension layer 2204 and the stationary suspension layer 2203. If there are particles that are not trapped, the particles that rise through the stationary suspension 2203 are also trapped by the light beads 2204 in the stationary suspension 2203, and the stationary suspension 2203 ensures a safe height. Through the entrapment of small particles, the increased density of light suspension beads 2204 in the stationary suspension 2203 can fall to the agitation suspension 2204, and due to the agitation, the mud on the surface of the falling light suspension beads 2204 falls to the bottom, and due to gravity, automatically falls to the sludge concentration zone 3.
After being separated by the suspension layer filtering solid-liquid separation device 22, the water quality is changed into clean water, and the clean water is discharged in the water collecting area 6 through the water outlet pipe 17.
Throughout the process, the single stirring driving motor 2002 simultaneously drives the filter layer stirring blade 2207, the stirring blade 23 and the mud scraper 21 to rotate together through the stirring shaft 19.

Claims (7)

1. The peripheral transmission type high-speed solid-liquid separation equipment for the large-flow circulating granulation fluidized bed comprises a circulating granulation fluidized bed main body device, wherein the fluidized bed main body device comprises a base frame (1), a tank body (2) is fixedly arranged on the base frame (1), and the tank body (2) is sequentially provided with a sludge concentration zone (3), a circulating granulation zone (4), a separation zone (5) and a water collecting zone (6) from bottom to top;
The circulating granulating zone (4) is internally provided with a middle cylinder (7) and an inner cylinder (8), the tank body (2), the middle cylinder (7) and the inner cylinder (8) are sequentially and coaxially arranged from outside to inside, a granulating fluidization zone (9) is arranged in the inner cylinder (8), a reflux zone (10) is arranged between the inner cylinder (8) and the middle cylinder (7), and a sludge sedimentation zone (11) is arranged between the middle cylinder (7) and the tank body (2);
the top ends of the middle cylinder (7) and the inner cylinder (8) are open, and the top end of the middle cylinder (7) is higher than the top end of the inner cylinder (8) to form a backflow water inlet (12);
The bottom end of the inner cylinder (8) is open, the position, close to the bottom end of the inner cylinder (8), of the bottom end of the middle cylinder (7) is contracted inwards, so that a backflow water outlet slit (14) is formed between the bottom end of the inner cylinder (8) and the contracted inner wall (13) of the middle cylinder (7) and is used for forming local negative pressure to provide backflow power;
the bottom end of the shrinkage inner wall (13) of the middle cylinder (7) is provided with a mixing zone (15) with an open top end and a closed bottom end, and the backflow water outlet slit (14) is communicated with the top end of the mixing zone (15);
The method is characterized in that:
The stirring device (18) is arranged in the inner cylinder (8), the top end of a stirring shaft (19) of the stirring device (18) extends out of the top end of the inner cylinder (8), passes through the separation area (5) and the water collecting area (6) and extends out of the top end of the tank body (2), and the stirring shaft (19) is driven to rotate by a peripheral transmission type stirring driving motor (20);
The peripheral transmission type stirring driving motor (20) comprises a supporting rail (2001), a roller (2005) which is driven by the stirring driving motor (2002) and can move on the supporting rail (2001) is arranged on the supporting rail (2001), the roller (2005) is arranged at one end of a travelling frame (2003), the other end of the travelling frame (2003) is connected with a central strut (2004) for transmission, and the central strut (2004) drives a stirring shaft (19) to rotate;
a water distribution device (24) is arranged in the mixing zone (15), the water distribution device (24) is communicated with a water inlet pipe (16), and the water inlet pipe (16) penetrates through the side wall of the tank body (2) and extends out of the tank body (2);
A water collecting device (25) is arranged in the water collecting area (6), the water collecting device (25) is communicated with a water outlet pipe (17), and the water outlet pipe (17) penetrates through the side wall of the tank body (2) and extends out of the tank body (2);
an inner cylinder mud particle guide device (28) is arranged at the open top end of the inner cylinder (8) and can enable mud particles flowing out of the granulating and fluidizing zone (9) to flow to the backflow zone (10);
The top end of the middle cylinder (7) is provided with an outer cylinder mud particle guide device (29) so that mud particles flowing out of the granulating and fluidizing zone (9) flow to a mud sedimentation zone (11);
the top end of a first stirring shaft sleeve (30) is fixedly connected to the inner top wall of the tank body (2), and a stirring shaft (19) penetrates through the first stirring shaft sleeve (30) and can rotate in the first stirring shaft sleeve (30);
The inner cylinder mud particle flow guiding device (28) comprises one end of a plurality of first pipe bodies (2801) which are uniformly distributed along the radial direction and are fixed on the side wall of the bottom of the first stirring shaft sleeve (30), the other end of each first pipe body (2801) is fixed on the inner cylinder (8), the other end of each first pipe body (2801) is open, a first inclined plate (2802) is arranged in each first pipe body (2801), and a plurality of first perforations (2803) are formed in the bottom of each first pipe body (2801);
The outer cylinder mud particle flow guiding device (29) comprises one end of a plurality of second pipe bodies (2901) which are fixed on the side wall of the bottom of the first stirring shaft sleeve (30) and are uniformly distributed along the radial direction, the other end of each second pipe body (2901) is fixed on the middle cylinder (7), the other end of each second pipe body (2901) is open, a second inclined plate (2902) is arranged in each second pipe body (2901), and a plurality of second perforations (2903) are formed in the bottom of each second pipe body (2901);
The inner diameters of the first pipe body (2801) and the second pipe body (2901) gradually increase outwards along the radial direction from the first stirring shaft sleeve (30);
A stirring blade (23) is arranged on a stirring shaft (19) in a granulating and fluidizing zone (9) in the inner cylinder (8); a mud scraping plate (21) arranged on the inner side of the bottom of the tank body (2) is arranged in the sludge concentration zone (3); the bottom of the stirring shaft (19) is rotatably arranged on the tank body (2) at the bottom of the sludge concentration zone (3), the bottom of the stirring shaft (19) is fixedly connected with the mud scraping plate (21), and the single stirring driving motor (2002) drives the stirring blades (23) and the mud scraping plate (21) to rotate together through the stirring shaft (19).
2. The peripheral transmission type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment as claimed in claim 1, wherein a suspension layer filtering solid-liquid separation device (22) is arranged in the separation zone (5) of the fluidized bed main body device;
The suspension layer filtering solid-liquid separation device (22) is divided into an upper part and a lower part, the upper part is a static suspension layer (2201), the lower part is an agitating suspension layer (2202), an isolation screen (2203) is arranged above the static suspension layer (2201), and the edge of the isolation screen (2203) is fixedly arranged on the inner wall of a tank body (2) of the separation zone (5);
The stirring suspension layer (2202) is internally provided with a stirring shaft connecting sleeve (2205) fixedly sleeved on the stirring shaft (19), the bottom end of the stirring shaft connecting sleeve (2205) is fixedly provided with a crisscross support frame (2206), and a plurality of filter layer stirring blades (2207) positioned in the stirring suspension layer (2202) are uniformly and fixedly distributed on the crisscross support frame (2206) along the axial direction;
A single stirring driving motor (2002) drives the filter layer stirring blade (2207), the stirring blade (23) and the scraper (21) to rotate together through a stirring shaft (19).
3. The peripheral transmission type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment according to claim 1, wherein the tank body (2) and the middle cylinder (7) and the inner cylinder (8) are connected through rib plates (34).
4. The peripheral transmission type high-speed solid-liquid separation equipment of the circulating granulation fluidized bed of claim 1, wherein the water distribution device (24) comprises a water distribution cavity (2402) formed by a pair of water distribution plates (2401), a plurality of water distribution branch pipes (2403) are communicated with the water distribution cavity (2402), the end parts of the water distribution plates (2401) extending out of the top of the water distribution cavity (2402) are closed, and a plurality of water distribution holes (2404) are uniformly formed in the side edges of the water distribution plates; the center of the water distribution plate (2401) is provided with a second stirring shaft sleeve (31), and the stirring shaft (19) passes through the second stirring shaft sleeve (31) and the water inlet pipe (16) and can rotate in the second stirring shaft sleeve (31) and the water inlet pipe (16); a sliding sealing sleeve (2405) is arranged between the bottom of the water inlet pipe (16) and the stirring shaft (19).
5. The peripheral-drive high-speed solid-liquid separation device for the circulating granulation fluidized bed with high flow rate as claimed in claim 4, wherein a supporting frame (26) is arranged in the sludge concentration zone (3), the top end of the supporting frame (26) is supported at the bottom of the mixing zone (15), and the bottom end of the supporting frame (26) is tightly contacted with the inner wall of the tank body (2) and can slide.
6. The peripheral-drive high-speed solid-liquid separation device of the circulating granulation fluidized bed with high flow rate according to claim 1, wherein the water collecting device (25) comprises a plurality of water collecting pipes (2501) which are communicated, the water collecting pipes (2501) are communicated with the water outlet pipe (17), and a plurality of water collecting holes (2502) are formed in the middle of the water collecting pipes (2501).
7. The peripheral drive type high-flow circulating granulation fluidized bed high-speed solid-liquid separation equipment according to claim 6, wherein the water collecting holes (2502) are formed obliquely by 45 degrees.
CN202011089676.4A 2020-10-13 2020-10-13 Peripheral transmission type high-speed solid-liquid separation equipment of large-flow circulating granulation fluidized bed Active CN112239258B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000032779A (en) * 1998-11-18 2000-06-15 백호익 Suspended solid contact clarifier by pelletizing of floc
WO2013053217A1 (en) * 2011-10-12 2013-04-18 Lin Changqing Internally circulating fluidized bed bioreactor
CN108467096A (en) * 2018-04-23 2018-08-31 西安唯源环保科技有限公司 A kind of low-temperature and low turbidity, high turbid or algae blooms water processing the granulating fluidized bed equipment of cycle
CN213803069U (en) * 2020-10-13 2021-07-27 西安建筑科技大学 Peripheral transmission type high-speed solid-liquid separation equipment for large-flow circulating granulation fluidized bed

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000032779A (en) * 1998-11-18 2000-06-15 백호익 Suspended solid contact clarifier by pelletizing of floc
WO2013053217A1 (en) * 2011-10-12 2013-04-18 Lin Changqing Internally circulating fluidized bed bioreactor
CN108467096A (en) * 2018-04-23 2018-08-31 西安唯源环保科技有限公司 A kind of low-temperature and low turbidity, high turbid or algae blooms water processing the granulating fluidized bed equipment of cycle
CN213803069U (en) * 2020-10-13 2021-07-27 西安建筑科技大学 Peripheral transmission type high-speed solid-liquid separation equipment for large-flow circulating granulation fluidized bed

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
造粒流化床浓缩技术处理给水厂排泥水的中试研究;黄廷林;张刚;聂小宝;孙昕;;给水排水;20051110(第11期);全文 *

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