CN218810699U - General equipment for sewage treatment - Google Patents

Abstract

The application protects a sewage treatment's general equipment relates to sewage treatment technical field, includes: the reactor is a sealing structure with an opening at the top, the lower part of the reactor is communicated with a water inlet pipe, and a pretreatment device for stirring water is arranged on the inner bottom surface of the reactor; a three-phase separation device comprising an outer cylinder and an inner cylinder; the outer barrel is in a funnel shape, a water passing gap is reserved between the outer barrel and the outer barrel, and a circle of water distribution holes are uniformly distributed in the barrel wall of the middle upper part of the outer barrel; a circle of effluent weir is arranged on the inner wall of the middle upper part of the inner cylinder; one end of the sludge return pipe is communicated with the bottom of the outer barrel, and the other end of the sludge return pipe is communicated with the bottom of the reactor; and one end of the water drainage pipe is connected with the water outlet weir, and the other end of the water drainage pipe extends out of the reactor. The general equipment can be used for flocculation reaction, aerobic reaction and anaerobic reaction; solves the problem that different reactions in the prior art can realize sewage treatment by different reactors.

Description

General equipment for sewage treatment

Technical Field

The application relates to a water treatment technology, in particular to a general device for sewage treatment.

Background

With the progress of science and technology and the development of times, the sewage treatment technology occupies an important position in the development of cities, and the sewage treatment in the prior art is divided into a physicochemical treatment and a biochemical treatment, wherein the flocculation precipitation technology is the most representative in the physicochemical treatment. The flocculation reaction tank requires that water and a medicament are sufficiently contacted and mixed in a short time to react and form flocs, while the sedimentation tank requires that water flow is as stable as possible, so that the two processes are respectively carried out in two different tank bodies.

The aerobic biological treatment system of the biochemical treatment technology comprises an aerobic aeration tank, a sedimentation tank, an aeration system, a sludge reflux system and the like. In order to maintain stable microorganism concentration balance and biochemical treatment effect in the aerobic reaction tank, most of the sludge separated in the sedimentation tank needs to flow back to the aerobic aeration tank. In most cases, the aerobic reaction tank and the sedimentation tank are often arranged independently, and the settled sludge needs to be collected together by a sludge scraper and then pumped back to the aerobic aeration tank by a sludge reflux pump.

Anaerobic biological treatment technology is often adopted for high-concentration organic wastewater, in order to effectively separate methane and keep the concentration of anaerobic microorganisms in a system stable, a specially designed three-phase separator is often adopted in an anaerobic reactor for separating gas, liquid and solid, and the three-phase separator is mostly formed by vertically overlapping inverted V-shaped folded plates and is left with a gap between the inverted V-shaped folded plates to serve as a common channel for methane, sewage and sludge, and the methane or the sewage often interferes the sinking of the sludge in the rising process.

Therefore, the number of the current technical equipment, pipelines and valves is large, the pool bodies with different functions are independently established, the engineering investment is large, and the maintenance cost is high.

Disclosure of Invention

Aiming at the defects and limitations of the prior art, the embodiment of the application provides the universal equipment for sewage treatment, reduces the quantity of equipment, pipelines and valves, and integrates different functions so as to solve the problems of high equipment investment and difficult operation, maintenance and management in the related art.

In order to achieve the above object, there is provided a general apparatus for sewage treatment, comprising:

the reactor is a sealing structure with an opening at the top, the lower part of the reactor is communicated with a water inlet pipe, and a pretreatment device for stirring water is arranged on the bottom surface in the reactor.

A three-phase separation device comprising an outer cylinder and an inner cylinder; the outer barrel is in a funnel shape, a water passing gap is reserved between the outer barrel and the outer barrel, and a circle of water distribution holes are uniformly distributed in the barrel wall of the middle upper part of the outer barrel; and a circle of effluent weir is arranged on the inner wall of the middle upper part of the inner cylinder.

One end of the sludge return pipe is communicated with the bottom of the outer cylinder, and the other end of the sludge return pipe is communicated with the bottom of the reactor.

And one end of the water drainage pipe is connected with the water outlet weir, and the other end of the water drainage pipe extends out of the reactor.

Preferably, the reactor comprises two cylinders with different diameters, the cylinder with the large diameter is positioned above, and the two cylinders are welded through a section of trumpet.

Preferably, the reactor is used as a flocculation reactor for physical and chemical treatment, an aerobic reactor for biochemical treatment or an anaerobic reactor for biological treatment.

Preferably, when the reactor is used as a flocculation reactor or an anaerobic reactor, the pretreatment device is a stirring device.

Preferably, when the reactor is used as an aerobic reactor, the pretreatment device is an oxygenation device.

Preferably, the membrane of the pretreatment device is EPDM, the disk is ABS, the membrane is uniformly perforated, the pore diameter is 80-100 μm, and the air is provided by an air blower.

Preferably, the water inlet pipe passes through the reactor from the outside and is located above the pretreatment device.

Preferably, the outer cylinder is formed by welding an upper upright cylinder and a lower conical cylinder; the inner cylinder is formed by welding an upper vertical cylinder and a lower horn-shaped cylinder, and the horn-shaped cylinder opening at the lower part of the inner cylinder is larger than the cone-shaped cylinder opening at the lower part of the outer cylinder.

Preferably, the inclination angle of the conical surface of the conical cylinder at the lower part of the outer cylinder is 45-60 degrees.

Preferably, the bottom end of the sludge return pipe is positioned between the bottom of the reactor and the pretreatment device.

The beneficial effect that technical scheme that this application provided brought includes:

the universal equipment for sewage treatment can be used for flocculation reaction, aerobic reaction or anaerobic reaction; when the device is used as a flocculation reactor or an anaerobic reactor, the pretreatment device in the device is a stirring device; when the device is used as an aerobic reactor, the pretreatment device is an oxygenation device. Solves the problem that different reactions in the prior art can realize sewage treatment by different reactors.

The utility model provides a general equipment for sewage treatment, which comprises a reactor and a three-phase separation device, wherein the reactor body is provided with a water inlet pipe, a pretreatment device, a drain pipe and a sludge return pipe; the sewage that gets into from the inlet tube can separate clear water and mud in the equipment, solved sewage treatment and needed multiple equipment built-up connection, cause equipment, pipeline, valve in large quantities, the engineering investment is big and the problem that maintenance cost is high.

The utility model provides a sewage treatment's general equipment, its reactor that includes is become by two drums that the diameter is different, and the drum of major diameter is located the top, and two drums pass through a section of horn section welding; the overground space can be fully utilized, and the occupied area is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic sectional view of a general sewage treatment apparatus according to an embodiment of the present application.

Reference numerals are as follows:

1. a reactor; 2. an outer cylinder; 3. a water distribution hole; 4. an inner barrel; 5. an effluent weir; 6. a drain pipe; 7. a sludge return pipe; 8. a water inlet pipe; 9. a pretreatment device.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As shown in FIG. 1, the present embodiment provides an example of a general apparatus for sewage treatment, which comprises a reactor 1, a three-phase separation device, a sludge return pipe 7 and a drain pipe 6. The reactor 1 is a sealing structure with an opening at the top, a pretreatment device 9 for stirring water is arranged on the inner bottom surface of the reactor 1, and a water inlet pipe 8 communicated with the reactor 1 is arranged above the pretreatment device 9. One end of the sludge return pipe 7 is communicated with the bottom of the outer cylinder 2, and the other end is communicated with the bottom of the reactor 1.

The three-phase separation device comprises an outer barrel 2 and an inner barrel 4, wherein the outer barrel and the inner barrel are funnel-shaped, a water passing gap is reserved between the outer barrel 2 and the inner barrel 4, a circle of water distribution holes 3 which are uniformly distributed are formed in the barrel wall of the middle upper part of the outer barrel 2, and a circle of water outlet weir 5 is arranged on the inner wall of the middle upper part of the inner barrel 4. One end of the drain pipe 6 is connected with the effluent weir 5, and the other end extends out of the reactor 1.

Preferably, the water distribution holes 3 are uniformly distributed on the wall of the outer barrel 2, and are provided with adjusting turn plates for uniformly distributing water.

Further, the outer cylinder 2 is formed by welding an upper vertical cylinder and a lower conical cylinder; the inner cylinder 4 is formed by welding an upper vertical cylinder and a lower horn cylinder; and the lower horn mouth of the inner cylinder 4 is larger than the lower cone mouth of the outer cylinder 2. The water distribution holes 3 are communicated with the water passing gap to form a sewage separation channel.

Preferably, the inclination angle of the lower conical cylinder surface of the outer cylinder 2 of the three-phase separator is 45-60 degrees, so that the sludge precipitated and separated from the sewage entering the three-phase separator can smoothly slide down without deposition.

Specifically, the vertical cylinder wall of the outer cylinder 2 is provided with a water distribution hole 3, the water distribution hole 3 is communicated with a water passing gap between the outer cylinder 2 and the inner cylinder 4, and sewage enters the three-phase separator through the water distribution hole 3. The annular effluent weir 5 is arranged on the inner wall of the upright cylinder of the inner cylinder 4 and is positioned below the water distribution hole 3, so that the separated clean water is discharged from the water discharge pipe 6 through the effluent weir 5.

Further, the reactor 1 comprises two cylinders with different diameters, the cylinder with the large diameter is positioned at the upper part, the cylinder with the small diameter is positioned at the lower part, the two cylinders are welded through a section of horn cylinder, and an opening at the top of the reactor 1 is used for discharging air and methane. The area of the lower part of the cylinder with small diameter contacting with the ground is reduced, and the upper part of the cylinder with larger diameter fully utilizes the ground space; thereby achieving the purpose of reducing the occupied area.

Further, a sludge return pipe 7 extends to the bottom of the reactor 1 and is located in the middle of the pretreatment device 9. The sludge flows to the bottom of the reactor 1 along the sludge return pipe 7, and biomass is supplemented at the bottom to maintain the high-activity sludge concentration so as to improve the sewage treatment efficiency.

The sewage treatment process of the general equipment comprises the following steps: sewage enters the reactor 1 from the water inlet pipe 8, is subjected to oxygen charging treatment or stirring treatment by the pretreatment device 9, is subjected to primary treatment, then enters the three-phase separation device for secondary separation, the separated sludge is precipitated to the bottom of the reactor from the sludge return pipe 7, and the treated clean water is discharged from the water discharge pipe 6 through the water outlet weir 5.

The reactor 1 is a sealed structure with an open top, such as a tank or a tank. The reactor 1 can be used as a flocculation reactor for physical and chemical treatment, an aerobic reactor for aerobic biological treatment, and an anaerobic reactor for anaerobic biological treatment.

When the reactor 1 is an aerobic reactor for aerobic biological treatment, the pretreatment device 9 is an oxygenation device; through oxygenation, air required by microbial metabolism is provided, organic matters are decomposed to form a three-phase mixture of air, water and sludge, the relative density of the air-water mixture formed after water aeration is smaller than that of water, so the three-phase mixture moves upwards under the combined action of air flow and water flow, along with the reduction of the water pressure at the upper part of the reactor 1, most of air in the mixed solution is released and escapes from the surface of the pool, a small amount of air attached to the water and the sludge is separated along with the movement of the water flow, the remaining mixture of the water and the sludge enters a three-phase separation device through a water distribution hole 3, the sludge flows into a sludge return pipe 7 along the wall of a conical barrel at the lower part of an outer barrel 2, and finally the sludge sinks to the bottom of the reactor 1 to supplement biomass; the separated clean water enters the effluent weir 5 and is discharged from the drain pipe 6.

When the reactor 1 is used as a flocculation reactor for physical and chemical treatment, the pretreatment device 9 is a stirring device; the general separation is the same as the aerobic biological treatment described above, with the focus on the differences described here. The flocculation reagent is fully contacted and mixed with water to form flocs through even stirring of the pretreatment device 9, and then the precipitate is separated from the water through a three-phase separation device.

When the reactor 1 is an anaerobic reactor for anaerobic biological treatment, the pretreatment device 9 is a stirring device; the general separation is the same as the aerobic biological treatment described above, with emphasis on the differences. The organic matters are decomposed into methane by anaerobic microorganisms such as hydrolytic bacteria, acid-producing bacteria, methanogenic bacteria and the like, the methane is discharged by stirring through a pretreatment device 9, and the residual mud-water mixture enters a three-phase separator for separation.

The sewage treatment universal equipment of the embodiment adjusts different water treatment functional units from the front-back position relation of a plane into a three-dimensional space vertical layout form, is integrated into a device, and can realize self-adaptive uniform water distribution and three-phase separation, thereby saving various equipment such as a mud scraper, a sludge reflux pump and the like and corresponding pipeline valves, and achieving the purposes of reducing equipment investment and reducing equipment operation maintenance management difficulty.

The general equipment for sewage treatment is suitable for flocculation reaction, aerobic reaction and anaerobic reaction, reduces equipment investment, reduces equipment operation and maintenance difficulty and simultaneously realizes the universality of the equipment.

In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly and encompass, for example, both fixed and removable coupling as well as integral coupling; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A universal apparatus for sewage treatment, comprising:

the reactor (1) is of a sealing structure with an opening at the top, the lower part of the reactor (1) is communicated with a water inlet pipe (8), and a pretreatment device (9) for stirring water is arranged on the inner bottom surface of the reactor (1);

a three-phase separation device comprising an outer cylinder (2) and an inner cylinder (4); the two are both funnel-shaped, a water passing gap is reserved between the two, and a circle of water distribution holes (3) which are uniformly distributed are arranged on the wall of the middle upper part of the outer barrel (2); a circle of effluent weir (5) is arranged on the inner wall of the middle upper part of the inner cylinder (4);

one end of the sludge return pipe (7) is communicated with the bottom of the outer cylinder (2), and the other end of the sludge return pipe is communicated with the bottom of the reactor (1);

and one end of the drain pipe (6) is connected to the effluent weir (5), and the other end of the drain pipe extends out of the reactor (1).

2. A universal apparatus for wastewater treatment according to claim 1, wherein:

the reactor (1) comprises two cylinders with different diameters, the cylinder with the large diameter is positioned above the reactor, and the two cylinders are welded through a section of horn cylinder.

3. A universal unit for wastewater treatment according to claim 1, characterized in that:

the reactor (1) is used as a flocculation reactor for physical and chemical treatment, an aerobic reactor for biochemical treatment or an anaerobic reactor for biochemical treatment.

4. A universal apparatus for wastewater treatment according to claim 3, wherein:

when the reactor (1) is used as a flocculation reactor or an anaerobic reactor, the pretreatment device (9) is a stirring device.

5. A universal unit for wastewater treatment according to claim 3, characterized in that:

when the reactor (1) is used as an aerobic reactor, the pretreatment device (9) is an oxygenation device.

6. A universal apparatus for wastewater treatment according to claim 5, wherein:

the membrane of the pretreatment device (9) is made of EPDM, the disk is made of ABS, the membrane is uniformly provided with holes with the aperture of 80-100 mu m, and air is provided by an air blower.

7. A universal apparatus for wastewater treatment according to claim 1, wherein:

the water inlet pipe (8) penetrates through the reactor (1) from the outside and is positioned above the pretreatment device (9).

8. A universal apparatus for wastewater treatment according to claim 1, wherein:

the outer cylinder (2) is formed by welding an upper upright cylinder and a lower conical cylinder; the inner cylinder (4) is formed by welding an upper vertical cylinder and a lower horn-shaped cylinder, and the lower horn-shaped cylinder opening of the inner cylinder (4) is larger than the lower cone-shaped cylinder opening of the outer cylinder (2).

9. The universal apparatus for sewage treatment according to claim 8, wherein:

the inclination angle of the conical surface of the conical barrel at the lower part of the outer barrel (2) is 45-60 degrees.

10. A universal unit for wastewater treatment according to claim 1, characterized in that:

the bottom end of the sludge return pipe (7) is positioned at the bottom of the reactor (1) and is positioned in the middle of the pretreatment device (9).

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