CN116693014B - A large-volume open integrated circulating agglomeration and granulation fluidized bed water treatment equipment - Google Patents

A large-volume open integrated circulating agglomeration and granulation fluidized bed water treatment equipment

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Publication number
CN116693014B
CN116693014B CN202310612493.3A CN202310612493A CN116693014B CN 116693014 B CN116693014 B CN 116693014B CN 202310612493 A CN202310612493 A CN 202310612493A CN 116693014 B CN116693014 B CN 116693014B
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China
Prior art keywords
cylinder
tank body
zone
bottom end
mixing
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CN202310612493.3A
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Chinese (zh)
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CN116693014A (en
Inventor
胡瑞柱
黄廷林
卜建伟
邢翔轩
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Xi'an Weiyuan Environmental Protection Technology Co ltd
Xi'an Weiyuan Water Technology Co ltd
Xian University of Architecture and Technology
Original Assignee
Xi'an Weiyuan Environmental Protection Technology Co ltd
Xi'an Weiyuan Water Technology Co ltd
Xian University of Architecture and Technology
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Priority to CN202310612493.3A priority Critical patent/CN116693014B/en
Publication of CN116693014A publication Critical patent/CN116693014A/en
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Publication of CN116693014B publication Critical patent/CN116693014B/en
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/16—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by suspending the powder material in a gas, e.g. in fluidised beds or as a falling curtain
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00—General aspects of water treatment
    • C02F2301/04—Flow arrangements
    • C02F2301/043—Treatment of partial or bypass streams
    • 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
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Sludge (AREA)

Abstract

The invention provides large-water-quantity open-type integrated circulating agglomeration fluidized bed water treatment equipment which comprises a tank body, wherein an inner cylinder, a middle cylinder and an outer cylinder are sequentially sleeved in the tank body from inside to outside, the bottom end of the middle cylinder is communicated with a mixing cylinder with a closed bottom end, a water collecting area is arranged between the outer cylinder and the tank body at a position above the top end of the middle cylinder, a sludge concentrating area is arranged in an inner cavity of the tank body below the bottom end of the outer cylinder and outside the closed mixing cylinder, a separation area is arranged between the outer cylinder and the tank body at a position below the top end of the middle cylinder, the top of the separation area is communicated with the water collecting area, and the bottom of the separation area is communicated with the sludge concentrating area. The device adopts a four-layer structure with the inner cylinder, the middle cylinder, the outer cylinder and the tank body coaxially arranged, the separation area is arranged between the outer cylinder and the tank body, the top of the tank body is opened, the problems of complex structure, poor adaptability of water quality and water quantity and the like in the separation area positioned at the top in the prior art are solved, and the economical efficiency of the system is further improved.

Description

Large-water-quantity open type integrated circulating agglomeration granulation fluidized bed water treatment equipment
Technical Field
The invention belongs to the technical field of water treatment, relates to a circulating agglomerating granulation fluidized bed, and in particular relates to large-water-quantity open-type integrated circulating agglomerating granulation fluidized bed water treatment equipment.
Background
The separation of suspended matters in water is one of the hot problems in the field of water treatment, along with the continuous development of economy and society, the living standard of people is continuously improved, whether the field of industrial water treatment or the field of residential life and drainage treatment, the removal requirement of suspended matters in water is continuously improved, meanwhile, along with the continuous change of water environment, the content of suspended matters in various levels of water is continuously increased, and the upgrading development of a solid-liquid separation water treatment system is a necessary development trend in the field. At present, water treatment technology and equipment based on suspension layer solid-liquid separation are widely applied. Including typical devices such as the Actiflo clarifier, france Degremont company DensaDeg high density clarifier. The water treatment system has obvious water purification effect in actual operation, but has the problems of large occupied area, more accessory equipment and the like. At present, a domestic water plant mostly adopts a precipitation and concentration process, supernatant fluid is discharged or recovered after solid-liquid separation, and sludge is discharged after dehydration. The method has the problems of low efficiency, large investment, large occupied area, high operation cost and the like.
The Chinese patent application publication No. CN112239257A discloses a high-efficiency solid-liquid separation and high-efficiency integrated mud-water separation device. The system comprises a reaction zone, a separation zone and a sludge concentration zone, wherein a suspension layer filtering solid-liquid separation device is arranged in the separation zone and is divided into an upper part and a lower part, the upper part is a static suspension layer, the lower part is an agitating suspension layer, the static suspension layer is filled with floating light suspension beads, and a filter layer agitating blade is arranged in the agitating suspension layer. The reaction zone is provided with an inner cylinder and a middle cylinder, and the tank body, the middle cylinder and the inner cylinder are coaxially arranged in sequence from outside to inside. The bottom of the inner cylinder is open, the position of the bottom of the middle cylinder, which is close to the bottom of the inner cylinder, is contracted inwards, so that a backflow water outlet slit is formed between the bottom of the inner cylinder and the contracted inner wall of the middle cylinder and is used for forming local negative pressure, and backflow power is provided to realize cyclic granulation. The system has the capability of treating high concentration suspended substances and general concentration wastewater. In actual operation, under the condition of large water quantity, the suspended beads in the separation zone need to be replaced and cleaned regularly, otherwise, the water quality of the effluent is affected. In addition, the stirring device of the separation area increases the energy consumption of the system and increases the running cost of the system. The device is a steel tank structure, the diameter of the tank is not too large, the gradient of the bottom conical bucket bottom of the tank is not too large, and a mud scraping plate is arranged at the bottom of the sludge concentration zone for continuous operation so as to ensure the economy of transportation and installation.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide large-water-quantity open-type integrated circulating agglomeration granulation fluidized bed water treatment equipment, which solves the technical problem that a closed system in the prior art has poor running economy under the condition of large water quantity.
In order to solve the technical problems, the invention adopts the following technical scheme:
A large-water-quantity open-type integrated circulating agglomerating granulating fluidized bed water treatment device comprises a tank body, wherein an inner cylinder, a middle cylinder and an outer cylinder are sequentially sleeved in the tank body from inside to outside, the inner cylinder, the middle cylinder, the outer cylinder and the tank body are coaxially and fixedly arranged, the bottom end of the middle cylinder is open, and the bottom end of the middle cylinder is communicated with a mixing cylinder with a closed bottom end.
The bottom end of the tank body is closed, the top end of the tank body is open, a water collecting area is arranged between the outer cylinder and the tank body and above the top end of the middle cylinder, and the internal cavity of the tank body below the bottom end of the outer cylinder and outside the closed mixing cylinder is a sludge concentrating area.
The bottom end of the outer cylinder is opened to form a separation water inlet, a separation area is arranged between the outer cylinder and the tank body and below the top end of the middle cylinder, the top of the separation area is communicated with a water collecting area, and the bottom of the separation area is communicated with a sludge concentration area.
The inner wall of the tank body in the water collecting area is provided with a water outlet weir, the outer wall of the top of the tank body is provided with a water collecting tank, and clear water enters the water collecting tank after passing through the water outlet weir.
The invention also has the following technical characteristics:
the inner cylinder is characterized in that the bottom end of the inner cylinder is open, a granulating fluidization area is arranged in the inner cylinder, the top end of the inner cylinder is open, the top end of the middle cylinder is higher than the top end of the inner cylinder to form a return water inlet, a circulating area is arranged between the inner cylinder and the middle cylinder, the top end of the middle cylinder is open, the top end of the outer cylinder is higher than the top end of the middle cylinder to form a sludge settling opening, a sludge settling area is arranged between the middle cylinder and the outer cylinder, the bottom of the sludge settling area is communicated with the sludge concentration area, a mixing area is arranged in the mixing cylinder, and the top of the mixing area is communicated with the granulating fluidization area and the circulating area.
Further, the bottom end of the middle cylinder is close to the bottom end of the inner cylinder and is contracted inwards to form a contracted inner wall, 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 contracted inner wall of the middle cylinder is connected with the mixing cylinder, and the backflow water outlet slit is communicated with the top end of the mixing region.
The outer wall of the tank body is provided with a sludge discharge pipe communicated with a sludge concentration area in the tank body.
The inner diameter of the mixing cylinder is smaller than or equal to that of the inner cylinder.
Further, the top end of the outer cylinder is closed, the top end of the outer cylinder is higher than the top end of the tank body, and a stirring driving motor is arranged at the closed top end of the outer cylinder and drives a stirring shaft.
The stirring shaft penetrates through the inner cylinder and extends into the mixing cylinder, stirring paddles are mounted on the stirring shaft in the inner cylinder, a water distributor fixedly mounted in the mixing cylinder is used as a rotating support seat at the bottom end of the stirring shaft, and the stirring shaft rotates to drive the stirring paddles to rotate.
Further preferably, the bottom end of the mixing drum 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.
Further preferably, the bottom of the tank body is a conical bucket bottom, the bottom of the mixing drum is a conical bucket bottom, the tank body is made of reinforced concrete through pouring, and the tank body is fixed on a foundation.
The stirring shaft penetrates through the inner cylinder and the mixing cylinder in sequence and stretches into the bottom of the tank body, stirring paddles are mounted on the stirring shaft in the inner cylinder, the stirring shaft takes a water distributor fixedly mounted in the mixing cylinder as a rotating support seat, the bottom end of the stirring shaft is connected with a scraper mounted at the bottom of the tank body, and the stirring shaft rotates to drive the stirring paddles and the scraper to rotate.
Further preferably, the bottom end of the mixing drum is communicated with the water inlet pipe, the water inlet pipe penetrates through the side wall of the tank body and extends out of the tank body, and a sliding sealing sleeve is arranged between the bottom of the water inlet pipe and the stirring shaft.
Further preferably, the bottom of the tank body is an arc bottom, the bottom of the mixing drum is a conical bucket bottom, the tank body is made of steel materials, and the tank body is arranged on the base frame.
Compared with the prior art, the invention has the following technical effects:
(I) The device adopts a four-layer structure with the inner cylinder, the middle cylinder, the outer cylinder and the tank body coaxially arranged, the separation area is arranged between the outer cylinder and the tank body, the top of the tank body is opened, the problems of complex structure, poor adaptability of water quality and water quantity and the like in the separation area positioned at the top in the prior art are solved, and the economical efficiency of the system is further improved. The multi-cylinder structure of the invention improves the hydraulic retention time of the system, effectively optimizes the sedimentation effect of the tiny particles, obviously reduces the turbidity of water and suspended matters in the separation area, and obtains good removal effect under the condition of large water quantity.
(II) the tank body is arranged to be open, the system effluent is changed from top pipeline drainage into overflow type effluent, and a suspension layer filtering solid-liquid separation device in a separation zone of a system in the prior art is eliminated, so that the overall height of the equipment is reduced, and the installation height of the equipment is reduced. Meanwhile, the regular replacement of the suspended beads is avoided, the workload of equipment installation and later maintenance is reduced, the operation is simpler and more convenient, and the equipment cost is reduced.
(III) the present invention makes good use of the high density properties of the particles. 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 zone after passing through the inner cylinder, and tiny particles which cannot be removed at the bottom are effectively removed after passing through the sludge sedimentation zone and the separation zone. The stirring blades in the separation area in the prior art are removed, so that the energy consumption of the rotating motor is effectively reduced, and the economic benefit of the system is further improved.
The invention has good treatment effect on various water qualities under various large water quantity conditions. Based on the operation experience of the prior art, when the water quality with higher organic matter content and lower suspended matter density are treated, the operation of the device is mainly sand-adding circulation granulation, and when the water quality with higher soluble organic matter content is treated, the device is mainly powder carbon circulation granulation.
Drawings
Fig. 1 is a schematic structural view of an open-type integrated circulating agglomerating granulation fluidized bed water treatment device for reinforced concrete.
Fig. 2 is a schematic structural view of an open-type integrated circulating agglomerating granulation fluid bed water treatment device for steel.
FIG. 3 is a schematic top view of the overflow weir and the water collection trough.
The reference numerals in the figure are 1-inner cylinder, 2-middle cylinder, 3-outer cylinder, 4-tank, 5-mixing cylinder, 6-water collecting area, 7-sludge concentrating area, 8-separation water inlet, 9-separation area, 10-water outlet weir, 11-water collecting tank, 12-granulation fluidization area, 13-return water inlet, 14-circulation area, 15-sludge settling port, 16-sludge settling area, 17-mixing area, 18-shrinkage inner wall, 19-return water outlet slit, 20-stirring driving motor, 21-stirring shaft, 22-stirring blade, 23-water distributor, 24-scraping plate, 25-water inlet pipe, 26-sliding sealing sleeve, 27-mud discharging pipe, 28-base frame and 29-foundation.
The following examples illustrate the invention in further detail.
Detailed Description
All devices and components 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 large-water-quantity open-type integrated circulating agglomeration granulation fluidized bed water treatment equipment, which comprises a tank body 4, wherein an inner cylinder 1, a middle cylinder 2 and an outer cylinder 3 are sequentially sleeved in the tank body 4 from inside to outside, the inner cylinder 1, the middle cylinder 2, the outer cylinder 3 and the tank body 4 are coaxially and fixedly arranged, the bottom end of the middle cylinder 2 is open, and the bottom end of the middle cylinder 2 is communicated with a mixing cylinder 5 with the bottom end being closed.
The bottom end of the tank body 4 is closed, the top end of the tank body 4 is open, a water collecting area 6 is arranged between the outer cylinder 3 and the tank body 4 and above the top end of the middle cylinder 2, and the inner cavity of the tank body 4 below the bottom end of the outer cylinder 3 and outside the closed mixing cylinder 5 is a sludge concentration area 7.
The bottom end of the outer cylinder 3 is opened to form a separation water inlet 8, a separation area 9 is arranged between the outer cylinder 3 and the tank body 4 and below the top end of the middle cylinder 2, the top of the separation area 9 is communicated with the water collecting area 6, and the bottom of the separation area 9 is communicated with the sludge concentration area 7.
An effluent weir 10 is arranged on the inner wall of the tank body in the water collecting area 6, a water collecting tank 11 is arranged on the outer wall of the top of the tank body 4, and clear water enters the water collecting tank 11 after passing through the effluent weir 10.
In this embodiment, the inner cylinder 1, the middle cylinder 2, the outer cylinder 3 and the tank 4 are preferably fixed by connecting rings or rib plates respectively.
In this embodiment, the top of the weir 10 is preferably lower than the top of the sump 11.
As a specific scheme of the embodiment, the bottom end of an inner cylinder 1 is opened, a granulating and fluidizing zone 12 is arranged in the inner cylinder 1, the top end of the inner cylinder 1 is opened, the top end of a middle cylinder 2 is higher than the top end of the inner cylinder 1, a return water inlet 13 is formed, a circulating zone 14 is formed between the inner cylinder 1 and the middle cylinder 2, the top end of the middle cylinder 2 is opened, the top end of an outer cylinder 3 is higher than the top end of the middle cylinder 2, a sludge settling port 15 is formed, a sludge settling zone 16 is formed between the middle cylinder 2 and the outer cylinder 3, the bottom of the sludge settling zone 16 is communicated with a sludge concentrating zone 7, a mixing zone 17 is arranged in a mixing cylinder 5, and the top of the mixing zone 17 is communicated with the granulating and fluidizing zone 12 and the circulating zone 14.
As a specific scheme of the embodiment, the position, close to the bottom end of the inner cylinder 1, of the bottom end of the middle cylinder 2 is contracted inwards to form a contracted inner wall 18, a backflow water outlet slit 19 is formed between the bottom end of the inner cylinder 1 and the contracted inner wall 18 of the middle cylinder 2 and is used for forming local negative pressure to provide backflow power, the bottom end of the contracted inner wall 18 of the middle cylinder 2 is connected with the mixing cylinder 5, and the backflow water outlet slit 19 is communicated with the top end of the mixing zone 17.
In this embodiment, the sludge particles in the granulating and fluidizing zone 12 in the inner cylinder 1 reach dynamic balance under the action of the power of the inflow water flow and the gravity of the self, and part of the formed sludge particles rise to the top of the inner cylinder 1 along with the water flow and circulate and reflux to the circulation zone 14 before reaching the top of the middle cylinder 2.
In this embodiment, after the sludge particles in the inner cylinder 1, the middle cylinder 2 and the outer cylinder 3 reach dynamic balance, part of the sludge particles fall down to the sludge sedimentation zone 16, the large-particle sludge directly sinks to the sludge concentration zone 7 from the sludge sedimentation zone 16, and the small-particle sludge is settled to the sludge concentration zone 7 after the particle diameter of the small-particle sludge in the separation zone 9 is increased.
In a preferred embodiment of the present invention, a sludge discharge pipe 27 is provided on the outer wall of the tank 4 to communicate with the sludge concentration area 7 in the tank 4, and when the sludge is concentrated and the sludge in the sludge concentration area 7 is accumulated to a certain height, the sludge is discharged from the sludge discharge pipe 27.
As a preferable aspect of this embodiment, the inner diameter of the mixing drum 5 is smaller than or equal to the inner diameter of the inner drum 1.
As a specific scheme of the embodiment, the top end of the outer cylinder 3 is closed, the top end of the outer cylinder 3 is higher than the top end of the tank body 4, the stirring driving motor 20 is arranged at the closed top end of the outer cylinder 3, and the stirring driving motor 20 drives the stirring shaft 21.
As a preferable scheme of the embodiment, a stirring shaft 21 penetrates through the inner cylinder 1 and stretches into the mixing cylinder 5, stirring blades 22 are arranged on the stirring shaft 21 in the inner cylinder 1, a water distributor 23 fixedly arranged in the mixing cylinder 5 is used as a rotating support seat at the bottom end of the stirring shaft 21, and the stirring blade 22 is driven to rotate by rotation of the stirring shaft 21.
In this embodiment, the stirring paddles 22 are installed at a certain interval, the uppermost stirring paddle 22 does not exceed the top end of the inner cylinder 1, and the lowermost stirring paddle 22 is just arranged at the position of the backflow water outlet slit 19, so that the effect of enhancing the side wall and separating mud and water is achieved.
In this embodiment, the water distributor 23 is preferably a common water distributor known in the art.
As a preferred scheme of this embodiment, the bottom end of the mixing drum 5 is communicated with the water inlet pipe 25, and the water inlet pipe 25 extends out of the tank body 4 through the side wall of the tank body 4.
As a preferable scheme of the embodiment, the bottom of the tank body 4 is a conical bucket bottom, the bottom of the mixing drum 5 is a conical bucket bottom, the tank body 4 is made by casting reinforced concrete, and the tank body 4 is fixed on the foundation 29. In this embodiment, the height of the tank 4 is preferably about 8m and the diameter is preferably about 5 m. The tank body 4 adopts reinforced concrete pouring, so that the production and transportation cost of the device can be effectively reduced, the operation is simpler and more convenient, and the manufacturing cost is reduced.
In this embodiment, the diameter of the tank 4 can be flexibly set under the condition of large water volume, and the slope of the conical bucket bottom at the bottom of the tank 4 can be adjusted to a larger slope, so that the scraper 24 in the prior art can be omitted, the system structure is further simplified, and the cost is reduced. The conical bucket bottom is positioned below the foundation 29, so that the heat insulation performance of the system is improved.
When the device is used, agents such as micro sand, powdery carbon and the like can be added into raw water according to the need, the raw water enters a mixing area 17 in a mixing drum 5 in a tank body 4 through a water inlet pipe 25 and then enters a granulating and fluidizing area 12 in an inner drum 1, the particles continuously rise under the stirring of a stirring blade 22, become larger gradually, and turn down when reaching the top end of the inner drum 1 and enter a circulating area 14 between the inner drum 1 and a middle drum 2.
When the mud water is circulated and flows back to the backflow water outlet slit 19, negative pressure is formed locally, the micro sand/powdery carbon is separated from the sludge nucleus through the reinforced stirring action of the side wall, the sludge particles are circulated again to the granulation fluidization area 12 in the inner cylinder 1, so that the large particles fall down when the suspension layer reaches the top end of the middle cylinder 2, and enter the sludge concentration area 7 from the sludge sedimentation area 16 until the large particles are settled to the bottom of the tank body 4.
Part of the micro-particle sludge does not directly enter the sludge concentration zone 7 along with water flow when passing through the sludge settling opening 15, and enters the sludge concentration zone 7 after continuously growing into large particles in the sludge settling zone 16. A small amount of ineffective granular sludge passes through the sludge sedimentation zone 16 along with water flow, enters the separation zone 9, continuously grows to a certain particle size, and then sinks to the sludge concentration zone 7. If the sludge particles are not settled, the sludge particles rise through the water collecting area 6 and are trapped by the water outlet weir 10 in the water collecting area 6, and clear water enters the water collecting tank 11 and is discharged.
In the whole process, the stirring driving motor 20 only drives the stirring blades 22 of the filter layer to rotate through the stirring shaft 21.
Example 2:
This example shows a large-water-volume open-type integrated circulating agglomerating granulation fluid bed water treatment apparatus, as shown in fig. 2 and 3, whose main structure is the same as that of example 1, except that the following differences are presented in this example compared to example 1.
In the preferred scheme of the embodiment, a stirring shaft 21 sequentially penetrates through an inner cylinder 1 and a mixing cylinder 5 and stretches into the bottom of a tank body 4, stirring blades 22 are arranged on the stirring shaft 21 in the inner cylinder 1, the stirring shaft 21 takes a water distributor 23 fixedly arranged in the mixing cylinder 5 as a rotating support seat, the bottom end of the stirring shaft 21 is connected with a scraper 24 arranged at the bottom of the tank body 4, and the stirring blade 22 and the scraper 24 are driven to rotate by rotation of the stirring shaft 21.
As a preferable scheme of the embodiment, the bottom end of the mixing drum 5 is communicated with a water inlet pipe 25, the water inlet pipe 25 penetrates through the side wall of the tank body 4 and extends out of the tank body 4, and a sliding sealing sleeve 26 is arranged between the bottom of the water inlet pipe 25 and the stirring shaft 21. In this embodiment, the sliding seal sleeve 26 is a sliding seal sleeve commonly used in the art, so that the water leakage of the water inlet pipe 25 can be avoided.
As a preferable scheme of the embodiment, the bottom of the tank body 4 is an arc bottom, the bottom of the mixing drum 5 is a conical bucket bottom, the tank body 4 is made of steel materials, and the tank body 4 is mounted on the base frame 28. In this embodiment, it is preferable that the height of the tank 4 is about 4m, the diameter is not more than 2.5m,
The apparatus of the present invention is used in substantially the same manner as in the working method of embodiment 1, except that a single agitation driving motor 20 simultaneously rotates the agitation blade 22 of the filter layer and the mud scraper 24 together through the agitation shaft 21 in the whole process.

Claims (6)

1.一种大水量敞开式一体化循环结团造粒流化床水处理设备，包括罐体（4），其特征在于，所述的罐体（4）内从内至外依次套装有内筒（1）、中筒（2）和外筒（3），内筒（1）、中筒（2）、外筒（3）和罐体（4）均同轴固定设置；所述的中筒（2）的底端开放，所述的中筒（2）的底端连通有底端封闭的混合筒（5）；1. A large-volume open-type integrated circulating agglomeration granulation fluidized bed water treatment equipment, comprising a tank body (4), characterized in that an inner cylinder (1), a middle cylinder (2) and an outer cylinder (3) are sequentially mounted inside the tank body (4) from the inside to the outside, and the inner cylinder (1), the middle cylinder (2), the outer cylinder (3) and the tank body (4) are all coaxially fixedly arranged; the bottom end of the middle cylinder (2) is open, and the bottom end of the middle cylinder (2) is connected to a mixing cylinder (5) with a closed bottom end; 所述的罐体（4）的底端封闭且顶端开放，所述的外筒（3）和罐体（4）之间位于中筒（2）的顶端以上的位置为集水区（6）；所述的外筒（3）的底端以下且位于封闭的混合筒（5）外部的罐体（4）的内部腔体为污泥浓缩区（7）；The bottom end of the tank body (4) is closed and the top end is open; the position between the outer cylinder (3) and the tank body (4) and above the top end of the middle cylinder (2) is a water collection area (6); the internal cavity of the tank body (4) below the bottom end of the outer cylinder (3) and outside the closed mixing cylinder (5) is a sludge concentration area (7); 所述的外筒（3）的底端开放，形成分离入水口（8），所述的外筒（3）和罐体（4）之间位于中筒（2）的顶端以下的位置为分离区（9）；所述的分离区（9）的顶部与集水区（6）相连通；所述的分离区（9）的底部与污泥浓缩区（7）相连通；The bottom end of the outer cylinder (3) is open to form a separation water inlet (8); the position between the outer cylinder (3) and the tank body (4) and below the top of the middle cylinder (2) is a separation zone (9); the top of the separation zone (9) is connected to the water collection zone (6); the bottom of the separation zone (9) is connected to the sludge concentration zone (7); 所述的集水区（6）内的罐体的内壁上设置有出水堰（10），罐体（4）的顶部外壁设置有集水槽（11），清水经过出水堰（10）后进入集水槽（11）；A water outlet weir (10) is provided on the inner wall of the tank body in the water collection area (6), and a water collecting trough (11) is provided on the top outer wall of the tank body (4). Clean water flows through the water outlet weir (10) and enters the water collecting trough (11); 所述的内筒（1）的底端开放，所述的内筒（1）内为造粒流化区（12）；所述的内筒（1）的顶端开放，所述的中筒（2）的顶端高于内筒（1）的顶端，形成回流入水口（13），所述的内筒（1）和中筒（2）之间为循环区（14）；所述的中筒（2）的顶端开放，所述的外筒（3）的顶端高于中筒（2）的顶端，形成污泥沉降口（15），所述的中筒（2）和外筒（3）之间为污泥沉降区（16），污泥沉降区（16）的底部与所述的污泥浓缩区（7）相连通；所述的混合筒（5）内为混合区（17），混合区（17）的顶部与造粒流化区（12）和循环区（14）相连通；The bottom end of the inner cylinder (1) is open, and the inner cylinder (1) is a granulation fluidization zone (12); the top end of the inner cylinder (1) is open, and the top end of the middle cylinder (2) is higher than the top end of the inner cylinder (1), forming a reflux water inlet (13), and the inner cylinder (1) and the middle cylinder (2) are connected to a circulation zone (14); the top end of the middle cylinder (2) is open, and the top end of the outer cylinder (3) is higher than the top end of the middle cylinder (2), forming a sludge sedimentation outlet (15), and the sludge sedimentation zone (16) is between the middle cylinder (2) and the outer cylinder (3), and the bottom of the sludge sedimentation zone (16) is connected to the sludge concentration zone (7); the mixing cylinder (5) is a mixing zone (17), and the top of the mixing zone (17) is connected to the granulation fluidization zone (12) and the circulation zone (14); 所述的中筒（2）的底端靠近内筒（1）的底端的位置向内收缩形成收缩内壁（18），内筒（1）的底端和中筒（2）的收缩内壁（18）之间形成回流出水狭缝（19），用于形成局部负压，提供回流动力；所述的中筒（2）的收缩内壁（18）的底端连接有混合筒（5），回流出水狭缝（19）与混合区（17）的顶端连通；The bottom end of the middle cylinder (2) is close to the bottom end of the inner cylinder (1) and contracts inwardly to form a contraction inner wall (18). A reflux outlet slit (19) is formed between the bottom end of the inner cylinder (1) and the contraction inner wall (18) of the middle cylinder (2), which is used to form a local negative pressure and provide reflux power. The bottom end of the contraction inner wall (18) of the middle cylinder (2) is connected to the mixing cylinder (5), and the reflux outlet slit (19) is connected to the top of the mixing zone (17). 所述的罐体（4）外壁上设置有连通罐体（4）内的污泥浓缩区（7）的排泥管（27）；A sludge discharge pipe (27) communicating with the sludge concentration area (7) in the tank body (4) is provided on the outer wall of the tank body (4); 所述的混合筒（5）的内径小于或等于内筒（1）的内径；The inner diameter of the mixing cylinder (5) is smaller than or equal to the inner diameter of the inner cylinder (1); 所述的外筒（3）的顶端封闭，外筒（3）的顶端高于所述的罐体（4）的顶端；外筒（3）封闭的顶端安装有搅拌驱动电机（20），搅拌驱动电机（20）驱动搅拌轴（21）；The top end of the outer cylinder (3) is closed, and the top end of the outer cylinder (3) is higher than the top end of the tank body (4); a stirring drive motor (20) is installed at the closed top end of the outer cylinder (3), and the stirring drive motor (20) drives the stirring shaft (21); 所述的搅拌轴（21）穿过内筒（1），伸入至混合筒（5）；所述的内筒（1）中的搅拌轴（21）上安装有搅拌桨叶（22），所述的搅拌轴（21）的底端以混合筒（5）内固定安装的布水器（23）作为转动支撑座，搅拌轴（21）的转动带动搅拌桨叶（22）转动。The stirring shaft (21) passes through the inner cylinder (1) and extends into the mixing cylinder (5); a stirring blade (22) is installed on the stirring shaft (21) in the inner cylinder (1); the bottom end of the stirring shaft (21) uses a water distributor (23) fixedly installed in the mixing cylinder (5) as a rotation support seat, and the rotation of the stirring shaft (21) drives the stirring blade (22) to rotate. 2.如权利要求1所述的大水量敞开式一体化循环结团造粒流化床水处理设备，其特征在于，所述的混合筒（5）的底端与进水管（25）相连通，进水管（25）穿过罐体（4）的侧壁伸出至罐体（4）的外部。2. The large-volume open integrated circulating agglomeration granulation fluidized bed water treatment equipment according to claim 1 is characterized in that the bottom end of the mixing barrel (5) is connected to the water inlet pipe (25), and the water inlet pipe (25) passes through the side wall of the tank body (4) and extends to the outside of the tank body (4). 3.如权利要求1所述的大水量敞开式一体化循环结团造粒流化床水处理设备，其特征在于，所述的罐体（4）的底部为锥形斗底，混合筒（5）的底部为锥形斗底，所述的罐体（4）采用钢筋混凝土浇筑制成，罐体（4）固定在地基（29）上。3. The large-volume open integrated circulating agglomeration granulation fluidized bed water treatment equipment according to claim 1 is characterized in that the bottom of the tank body (4) is a conical bucket bottom, the bottom of the mixing drum (5) is a conical bucket bottom, the tank body (4) is made of reinforced concrete, and the tank body (4) is fixed on the foundation (29). 4.一种大水量敞开式一体化循环结团造粒流化床水处理设备，包括罐体（4），其特征在于，所述的罐体（4）内从内至外依次套装有内筒（1）、中筒（2）和外筒（3），内筒（1）、中筒（2）、外筒（3）和罐体（4）均同轴固定设置；所述的中筒（2）的底端开放，所述的中筒（2）的底端连通有底端封闭的混合筒（5）；4. A large-volume open-type integrated circulating agglomeration granulation fluidized bed water treatment equipment, comprising a tank body (4), characterized in that an inner cylinder (1), a middle cylinder (2) and an outer cylinder (3) are sequentially mounted inside the tank body (4) from the inside to the outside, and the inner cylinder (1), the middle cylinder (2), the outer cylinder (3) and the tank body (4) are all coaxially fixed; the bottom end of the middle cylinder (2) is open, and the bottom end of the middle cylinder (2) is connected to a mixing cylinder (5) with a closed bottom end; 所述的罐体（4）的底端封闭且顶端开放，所述的外筒（3）和罐体（4）之间位于中筒（2）的顶端以上的位置为集水区（6）；所述的外筒（3）的底端以下且位于封闭的混合筒（5）外部的罐体（4）的内部腔体为污泥浓缩区（7）；The bottom end of the tank body (4) is closed and the top end is open; the position between the outer cylinder (3) and the tank body (4) and above the top end of the middle cylinder (2) is a water collection area (6); the internal cavity of the tank body (4) below the bottom end of the outer cylinder (3) and outside the closed mixing cylinder (5) is a sludge concentration area (7); 所述的外筒（3）的底端开放，形成分离入水口（8），所述的外筒（3）和罐体（4）之间位于中筒（2）的顶端以下的位置为分离区（9）；所述的分离区（9）的顶部与集水区（6）相连通；所述的分离区（9）的底部与污泥浓缩区（7）相连通；The bottom end of the outer cylinder (3) is open to form a separation water inlet (8); the position between the outer cylinder (3) and the tank body (4) and below the top of the middle cylinder (2) is a separation zone (9); the top of the separation zone (9) is connected to the water collection zone (6); the bottom of the separation zone (9) is connected to the sludge concentration zone (7); 所述的集水区（6）内的罐体的内壁上设置有出水堰（10），罐体（4）的顶部外壁设置有集水槽（11），清水经过出水堰（10）后进入集水槽（11）；A water outlet weir (10) is provided on the inner wall of the tank body in the water collection area (6), and a water collecting trough (11) is provided on the top outer wall of the tank body (4). Clean water flows through the water outlet weir (10) and enters the water collecting trough (11); 所述的内筒（1）的底端开放，所述的内筒（1）内为造粒流化区（12）；所述的内筒（1）的顶端开放，所述的中筒（2）的顶端高于内筒（1）的顶端，形成回流入水口（13），所述的内筒（1）和中筒（2）之间为循环区（14）；所述的中筒（2）的顶端开放，所述的外筒（3）的顶端高于中筒（2）的顶端，形成污泥沉降口（15），所述的中筒（2）和外筒（3）之间为污泥沉降区（16），污泥沉降区（16）的底部与所述的污泥浓缩区（7）相连通；所述的混合筒（5）内为混合区（17），混合区（17）的顶部与造粒流化区（12）和循环区（14）相连通；The bottom end of the inner cylinder (1) is open, and the inner cylinder (1) is a granulation fluidization zone (12); the top end of the inner cylinder (1) is open, and the top end of the middle cylinder (2) is higher than the top end of the inner cylinder (1), forming a reflux water inlet (13), and the inner cylinder (1) and the middle cylinder (2) are connected to a circulation zone (14); the top end of the middle cylinder (2) is open, and the top end of the outer cylinder (3) is higher than the top end of the middle cylinder (2), forming a sludge sedimentation outlet (15), and the sludge sedimentation zone (16) is between the middle cylinder (2) and the outer cylinder (3), and the bottom of the sludge sedimentation zone (16) is connected to the sludge concentration zone (7); the mixing cylinder (5) is a mixing zone (17), and the top of the mixing zone (17) is connected to the granulation fluidization zone (12) and the circulation zone (14); 所述的中筒（2）的底端靠近内筒（1）的底端的位置向内收缩形成收缩内壁（18），内筒（1）的底端和中筒（2）的收缩内壁（18）之间形成回流出水狭缝（19），用于形成局部负压，提供回流动力；所述的中筒（2）的收缩内壁（18）的底端连接有混合筒（5），回流出水狭缝（19）与混合区（17）的顶端连通；The bottom end of the middle cylinder (2) is close to the bottom end of the inner cylinder (1) and contracts inwardly to form a contraction inner wall (18). A reflux outlet slit (19) is formed between the bottom end of the inner cylinder (1) and the contraction inner wall (18) of the middle cylinder (2), which is used to form a local negative pressure and provide reflux power. The bottom end of the contraction inner wall (18) of the middle cylinder (2) is connected to the mixing cylinder (5), and the reflux outlet slit (19) is connected to the top of the mixing zone (17). 所述的罐体（4）外壁上设置有连通罐体（4）内的污泥浓缩区（7）的排泥管（27）；A sludge discharge pipe (27) communicating with the sludge concentration area (7) in the tank body (4) is provided on the outer wall of the tank body (4); 所述的混合筒（5）的内径小于或等于内筒（1）的内径；The inner diameter of the mixing cylinder (5) is smaller than or equal to the inner diameter of the inner cylinder (1); 所述的外筒（3）的顶端封闭，外筒（3）的顶端高于所述的罐体（4）的顶端；外筒（3）封闭的顶端安装有搅拌驱动电机（20），搅拌驱动电机（20）驱动搅拌轴（21）；The top end of the outer cylinder (3) is closed, and the top end of the outer cylinder (3) is higher than the top end of the tank body (4); a stirring drive motor (20) is installed at the closed top end of the outer cylinder (3), and the stirring drive motor (20) drives the stirring shaft (21); 所述的搅拌轴（21）依次穿过内筒（1）和混合筒（5）且伸入至罐体（4）的底部；所述的内筒（1）中的搅拌轴（21）上安装有搅拌桨叶（22），所述的搅拌轴（21）以混合筒（5）内固定安装的布水器（23）作为转动支撑座，所述的搅拌轴（21）的底端与安装在罐体（4）的底部的刮泥板（24）相连，搅拌轴（21）的转动带动搅拌桨叶（22）和刮泥板（24）转动。The stirring shaft (21) passes through the inner cylinder (1) and the mixing cylinder (5) in sequence and extends into the bottom of the tank body (4); a stirring blade (22) is installed on the stirring shaft (21) in the inner cylinder (1); the stirring shaft (21) uses a water distributor (23) fixedly installed in the mixing cylinder (5) as a rotation support seat; the bottom end of the stirring shaft (21) is connected to a scraper (24) installed at the bottom of the tank body (4); the rotation of the stirring shaft (21) drives the stirring blade (22) and the scraper (24) to rotate. 5.如权利要求4所述的大水量敞开式一体化循环结团造粒流化床水处理设备，其特征在于，所述的混合筒（5）的底端与进水管（25）相连通，进水管（25）穿过罐体（4）的侧壁伸出至罐体（4）的外部；所述的进水管（25）的底部与搅拌轴（21）之间设置有滑动密封套（26）。5. The large-volume open-type integrated circulating agglomeration and granulation fluidized bed water treatment equipment according to claim 4 is characterized in that the bottom end of the mixing barrel (5) is connected to the water inlet pipe (25), and the water inlet pipe (25) passes through the side wall of the tank body (4) and extends to the outside of the tank body (4); a sliding sealing sleeve (26) is provided between the bottom of the water inlet pipe (25) and the stirring shaft (21). 6.如权利要求4所述的大水量敞开式一体化循环结团造粒流化床水处理设备，其特征在于，所述的罐体（4）的底部为弧形底，混合筒（5）的底部为锥形斗底，所述的罐体（4）采用钢材料制成，罐体（4）安装在基架（28）上。6. The large-volume open integrated circulating agglomeration granulation fluidized bed water treatment equipment as described in claim 4 is characterized in that the bottom of the tank body (4) is an arc-shaped bottom, the bottom of the mixing barrel (5) is a conical bucket bottom, the tank body (4) is made of steel material, and the tank body (4) is installed on the base frame (28).
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