WO2023077676A1

WO2023077676A1 - Mbbr process suspended filler backflow system

Info

Publication number: WO2023077676A1
Application number: PCT/CN2022/072048
Authority: WO
Inventors: 黄翀; 黄东辉; 凌锐; 黄宇; 蒋永丰; 申晨希
Original assignee: 江苏裕隆环保有限公司
Priority date: 2021-11-05
Filing date: 2022-01-14
Publication date: 2023-05-11
Also published as: CN114057290B; CN114057290A

Abstract

An MBBR process suspended filler backflow system, comprising: a tank body (1); a partition plate (2) fixedly provided in the middle of an inner cavity of the tank body (1) in a vertical direction; a top plate (3) fixedly provided at the top end of the partition plate (2); a filler backfilling mechanism (4) provided on one side of the inner cavity of the tank body (1); and a lifting/lowering mechanism (5) provided at the top end of the top plate (3), wherein a gap between the partition plate (2) and the bottom end of the inner cavity of the tank body (1) is smaller than 40 cm. According to the MBBR process suspended filler backflow system, accumulation of suspended filler is eliminated, such that mixed liquid normally passes through an effluent intercepting plate (45), and the suspended filler on one side of the inner cavity of the tank body (1) is supplemented; and the height of the effluent intercepting plate (45) can be adjusted according to the height of the water surface, such that the effluent intercepting plate (45) is located below the water liquid level, thereby avoiding the increase of the quantity of filler at the tail end of a water outlet, and ensuring that the liquid can normally pass through the reactor from an effluent intercepting device.

Description

A MBBR process suspended filler reflux system

technical field

The invention relates to the technical field of sewage treatment, in particular to an MBBR process suspension filler reflux system.

Background technique

Carrier fluidized bed moving bed biofilm reactor (MBBR process), its principle is to increase the biomass and biological species in the reactor by adding a certain amount of suspended carrier to the reactor, thereby improving the treatment efficiency of the reactor. The packing density is close to water, so it is completely mixed with water during aeration. In addition, each carrier has different types inside and outside, and some anaerobic or facultative bacteria grow inside. The environment for microbial growth is gas, liquid , solid three-phase. The collision and shearing of the carrier in the water makes the air bubbles smaller and increases the utilization rate of oxygen. The outside is good for bacteria, so that each carrier is a micro-reactor, so that the nitrification reaction and denitrification reaction exist at the same time, so that The processing effect has been improved. The core of the MBBR process is to increase the filler. The uniquely designed filler floats with the water flow in the reaction tank under the disturbance of the blast aeration, driving the attached growth of biological bacteria to fully contact the pollutants and oxygen in the water body, and the pollutants are absorbed through the adsorption process. And diffusion into the biofilm, degraded by microorganisms. The attached growth of microorganisms can reach a very high biomass, so the biological concentration in the reaction tank is several times that of the suspended growth activated sludge process, and the degradation efficiency is also doubled;

technical problem

However, in the actual use of the existing MBBR process device, the tank containing the biologically suspended filler is likely to be carried by the mixed liquid after the liquid is processed, causing the liquid to drive the biologically suspended filler to the end of the outlet of the MBBR process device, resulting in discharge. The number of fillers at the end of the nozzle increases, which leads to accumulation in severe cases, and the liquid cannot pass through the reactor from the water outlet interception device normally.

technical solution

The object of the present invention is to provide a suspension filler reflux system for MBBR process, to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the present invention provides the following technical solutions: a kind of MBBR process suspended filler reflux system, comprising;

Pool body;

The partition is fixedly arranged in the middle of the inner cavity of the pool body along the upper and lower sides;

The top plate is fixedly arranged on the top of the partition;

Filler backfill mechanism, arranged on the inner cavity side of the pool body;

The lifting mechanism is arranged on the top of the top plate;

Wherein, the gap between the partition plate and the bottom end of the inner cavity of the pool body is less than 40 cm.

Preferably, the filler backfilling mechanism includes: a turbo centrifugal pump, which is fixedly arranged at the top of one side of the partition; a liquid inlet pipe, the liquid inlet of the turbo centrifugal pump is screwed with a liquid inlet pipe, and the inlet One end of the liquid pipe extends out of one side of the partition plate; a limit block, the front and rear sides of the inner cavity of the pool body are fixed with limit blocks; a guide rod, the bottom end of the limit block is connected to the The front and rear sides of the bottom middle of the top plate are fixed with guide rods, and the bottom ends of the guide rods are fixed at the bottom of the inner cavity of the pool body; The outer walls are fitted together, and one end of the liquid inlet pipe extends out of the bottom side of the water outlet intercepting plate.

Preferably, the shape of the outlet water intercepting plate is "Z" shape.

Preferably, the lifting mechanism includes: a housing fixedly arranged on the top of the top plate; a rack fitted and inserted into the top of the housing, and the bottom end of the rack extends out of the top of the top plate. The bottom end is fixedly connected with the top of the water outlet intercepting plate; the servo motor is fixedly arranged on the front side of the housing; the gear, the output end of the servo motor extends into the inner cavity of the housing and is keyed to the gear, And the gear meshes with one side of the rack.

Preferably, the lifting mechanism further includes: a slider, one side of the rack is provided with a chute along the up and down direction, and a slider is inserted into the inner cavity of the chute, and one side of the slider is fixed It is arranged on the inner cavity side of the housing.

A kind of MBBR process suspended filler reflux system, comprises the following steps:

Step (1): Control the operation of the MBBR reactor, inject the suspended filler and sewage into the inner cavity of the pool body, control the operation of the MBBR reactor, and the suspended filler and sewage can enter the inner cavity of the pool body through the bottom of the partition The other side;

Step (2): Connect the external power supply of the servo motor and the worm gear centrifugal pump, and control the start of the servo motor. The servo motor can drive the gear to rotate around its own axis, so that the gear rack is vertical under the limitation of the chute and the slider. Move, so that the water outlet intercepting plate can move vertically under the restriction of the guide rod, and then the height of the water outlet intercepting plate can be adjusted according to the height of the water surface, so that the water outlet intercepting plate is located under the water surface;

Step (3): The suspended filler can be controlled under the water outlet interceptor plate under the obstruction of the outlet water interceptor plate, and through the action of the inclined surface of the outlet water interceptor plate, a large amount of suspended filler is concentrated on the bottom side of the outlet water interceptor plate to control the worm wheel The centrifugal pump is started, and under the suction of the worm gear centrifugal pump, the mixed liquid on the other side of the tank body cavity can pass through the liquid inlet pipe, so that a large amount of suspended filler follows the mixed liquid and enters the inner cavity side of the pool body through the liquid inlet pipe , so as to eliminate the accumulation of suspended fillers, make the mixed liquid pass through the water outlet interception plate normally, and supplement the suspended fillers on the side of the inner cavity of the pool.

Beneficial effect

A kind of MBBR process suspended filler reflux system proposed by the present invention has the beneficial effects of:

1. The present invention is equipped with a filler backfill mechanism to intercept the suspended filler on the lower side of the water outlet interception plate, and under the suction of the worm gear centrifugal pump, the mixed liquid on the other side of the inner cavity of the tank can pass through the inlet pipe, so that A large number of suspended fillers follow the mixed liquid into the inner cavity side of the tank body through the liquid inlet pipe, thereby eliminating the accumulation of suspended fillers, allowing the mixed solution to pass through the water outlet interception plate normally, and supplementing the suspended fillers on the inner cavity side of the tank;

2. The present invention can control the gear to move the rack vertically by providing a lifting mechanism, so that the rack drives the water outlet interception plate to move up and down, so that the height of the water outlet interception plate can be adjusted according to the height of the water surface, so that the water outlet interception plate It is located below the water surface to avoid an increase in the number of fillers at the end of the water outlet and to ensure that the liquid passes through the reactor from the water outlet interception device normally.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the explosive structure of the filler backfill mechanism of the present invention;

Fig. 3 is a schematic diagram of the explosive structure of the lifting mechanism of the present invention;

Fig. 4 is the front sectional view of housing of the present invention;

Fig. 5 is a schematic structural diagram of Embodiment 2 of the present invention.

In the figure: 1. Pool body, 2. Partition plate, 3. Top plate, 4. Packing backfill mechanism, 41. Worm gear centrifugal pump, 42. Liquid inlet pipe, 43. Limiting block, 44. Guide rod, 45. Outlet water interception Plate, 5, lifting mechanism, 51, housing, 52, rack, 53, servo motor, 54, gear, 55, slide block, 56, chute.

Embodiments of the present invention

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1, please refer to Figures 1-4, the present invention provides a technical solution: a suspension filler reflux system for MBBR process, including: pool body 1, partition plate 2, top plate 3, filler backfill mechanism 4 and lifting mechanism 5, The partition plate 2 is fixedly arranged in the middle of the inner cavity of the pool body 1 along the upper and lower sides, and the inner cavity of the pool body 1 can be divided by the partition plate 2. The top plate 3 is fixedly installed on the top of the partition plate 2, and the filler backfill mechanism 4 is set on the side of the inner cavity of the pool body 1, and the lifting mechanism 5 is set on the top of the top plate 3, wherein the gap between the partition plate 2 and the bottom end of the inner cavity of the pool body 1 is less than 40 cm, so that the suspended filler can enter the pool body 1 the other side of the

As a preferred solution, further, the filler backfill mechanism 4 includes: a worm gear centrifugal pump 41, a liquid inlet pipe 42, a limit block 43, a guide rod 44 and an outlet intercepting plate 45, and the worm gear centrifugal pump 41 is fixedly arranged on one side of the partition 2 At the top of the side, the liquid inlet of the worm wheel centrifugal pump 41 is screwed with a liquid inlet pipe 42, and one end of the liquid inlet pipe 42 extends out of the side of the dividing plate 2. The worm wheel centrifugal pump 41 is a prior art, and the worm wheel centrifugal pump 41 Under the action of suction, the mixed liquid on the other side of the inner cavity of the cell body 1 can pass through the liquid inlet pipe, so that a large amount of suspended fillers can follow the mixed liquid and enter the inner cavity side of the cell body through the liquid inlet pipe, thereby eliminating the accumulation of suspended fillers , the front and rear sides of one side of the inner cavity of the pool body 1 are fixedly provided with a limit block 43, and the bottom end of the limit block 43 and the front and rear sides of the bottom middle of the top plate 3 are fixedly provided with a guide rod 44, and the guide rod 44 The bottom end of the bottom is fixedly arranged at the bottom end of the inner chamber of the pool body 1, and the water outlet intercepting plate 45 is matched with the outer walls of the four guide rods 44. By being provided with the guide rods 44, it is convenient to extend one end of the liquid inlet pipe 42. One side of the bottom end of the water outlet interception plate 45 .

As a preferred solution, further, the shape of the water outlet intercepting plate 45 is "Z" shape, so that the suspended filler can be concentrated on the bottom side of the water outlet intercepting plate 45 .

As a preferred solution, further, the lifting mechanism 5 includes: a housing 51, a rack 52, a servo motor 53 and a gear 54, the housing 51 is fixedly arranged on the top of the top plate 3, and the rack 52 is suitable for the top of the housing 51 With plug connection, the bottom end of the rack 52 extends out of the bottom end of the top plate 3 and is fixedly connected with the top end of the water outlet interception plate 45, the servo motor 53 is fixedly arranged on the front side of the housing 51, and the output end of the servo motor 53 extends into the housing The inner cavity of the body 51 is connected with a gear 54, and the gear 54 is meshed with one side of the rack 52. The servo motor 53 is a prior art, and the servo motor 53 can drive the gear 54 to rotate clockwise or counterclockwise around its own axis. All servo motor models that comply with this case can be used.

As a preferred solution, further, the lifting mechanism 5 also includes: a slider 55 and a chute 56, one side of the rack 52 is provided with a chute 56 along the up and down direction, and the inner cavity of the chute 56 is inserted with the slider 55 One side of the slider 55 is fixedly arranged on one side of the inner chamber of the housing 51 , and the movement of the rack 52 can be limited by the cooperation of the slider 55 and the slide groove 56 .

Step (1): Control the operation of the MBBR reactor, inject the suspended filler and sewage into the inner cavity side of the tank body 1, control the operation of the MBBR reactor, and the suspended filler and sewage can enter the tank body 1 through the bottom of the partition 2 the other side of the lumen;

Step (2): Connect the external power supply of the servo motor 53 and the worm gear centrifugal pump 41, control the servo motor 53 to start, the servo motor 53 can drive the gear 54 to rotate around its own axis, so that the gear 54 can move the rack 52 on the chute 56 and the slider 55 to move vertically, so that the water outlet intercepting plate 45 can move vertically under the restriction of the guide rod 44, and then the height of the water outlet intercepting plate 45 can be adjusted according to the height of the water surface, so that the water outlet intercepting plate 45 located below the surface of the water;

Step (3): The suspended filler can be controlled under the water outlet interceptor plate 45 under the blocking of the outlet water interceptor plate 45, and through the action of the inclined surface of the outlet water interceptor plate 45, a large amount of suspended filler is concentrated on the bottom end of the outlet water interceptor plate 45. side, control the start of the worm gear centrifugal pump 41, and under the suction of the worm gear centrifugal pump 41, the mixed liquid on the other side of the inner cavity of the pool body 1 can pass through the liquid inlet pipe 42, so that a large amount of suspended filler follows the mixed liquid through the liquid inlet pipe 42 enters the side of the inner cavity of the pool body 1, thereby eliminating the accumulation of suspended fillers, allowing the mixed solution to pass through the water outlet interception plate 45 normally, and supplementing the suspended fillers on the inner cavity side of the pool body 1.

Embodiment 2, please refer to Fig. 5, the present invention provides another technical solution: in this embodiment, the water outlet intercepting plate 45 can be turned over 90 degrees, that is, it is arranged on the inner surface of the liquid inlet pipe 42 along the up and down direction, and the shape is " Z" shape is also applicable to this device, and the specific working principle is the same as above.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims

A kind of MBBR process suspension filler reflux system, is characterized in that, comprises;

Pool body (1);

The partition (2) is fixedly arranged in the middle of the inner cavity of the pool body (1) along the upper and lower sides;

The top plate (3) is fixedly arranged on the top of the partition (2);

Filler backfill mechanism (4), arranged on the inner cavity side of the pool body (1);

The lifting mechanism (5) is arranged on the top of the top plate (3);

Wherein, the gap between the partition plate (2) and the bottom end of the inner cavity of the pool body (1) is less than 40CM.
A kind of MBBR process suspension filler reflux system according to claim 1, is characterized in that: described filler backfill mechanism (4) comprises:

Worm gear centrifugal pump (41), fixedly arranged on the top of one side of the partition (2);

A liquid inlet pipe (42), the liquid inlet of the worm gear centrifugal pump (41) is screwed with a liquid inlet pipe (42), and one end of the liquid inlet pipe (42) extends out of the partition plate (2) side;

A limit block (43), the limit block (43) is fixedly arranged on both sides of the top, front and rear sides of the inner cavity of the pool body (1);

guide rod (44), the bottom end of the stop block (43) and the front and rear sides of the bottom middle part of the top plate (3) are fixedly provided with guide rods (44), and the guide rods (44) The bottom end is fixedly arranged at the bottom end of the inner cavity of the pool body (1);

The water outlet intercepting plate (45) is matched with the outer walls of the four guide rods (44), and one end of the liquid inlet pipe (42) extends out of the bottom side of the water outlet intercepting plate (45). .
The MBBR process suspension filler return system according to claim 2, characterized in that: the shape of the outlet water interception plate (45) is "Z" shape.
A kind of MBBR process suspended filler reflux system according to claim 1, characterized in that: the lifting mechanism (5) includes:

The housing (51) is fixedly arranged on the top of the top plate (3);

The rack (52) is adapted to be plugged with the top of the housing (51), and the bottom of the rack (52) extends out of the bottom of the top plate (3) and connects with the water outlet intercepting plate (45 ) is fixedly connected at the top;

The servo motor (53) is fixedly arranged on the front side of the housing (51);

gear (54), the output end of the servo motor (53) extends into the inner cavity of the housing (51) and is keyed to the gear (54), and the gear (54) is connected to the rack (52) ) are engaged on one side.
[Correction 11.07.2022 under Rule 91]

A kind of MBBR process suspension filler reflux system according to claim 4, is characterized in that: described lifting mechanism (5) also comprises:

A slider (55), one side of the rack (52) is provided with a chute (56) along the up and down direction, and the inner chamber of the chute (56) is inserted with a slider (55), the slider One side of the block (55) is fixedly arranged on one side of the inner cavity of the housing (51).
The construction method of a kind of MBBR process suspended filler reflux system according to any one of claims 1-5, characterized in that: comprising the following steps:

Step (1): Control the operation of the MBBR reactor, inject the suspended filler and sewage into the inner cavity side of the tank body (1), control the operation of the MBBR reactor, and the suspended filler and sewage can enter through the bottom of the partition (2) To the other side of the inner cavity of the pool body (1);

Step (2): Connect the external power supply of the servo motor (53) and the worm gear centrifugal pump (41), control the servo motor (53) to start, and the servo motor (53) can drive the gear (54) to rotate around its own axis, so that the gear (54) Toggle the rack (52) to move vertically under the restriction of the chute (56) and the slider (55), so that the water outlet intercepting plate (45) can move vertically under the restriction of the guide rod (44) , and then the height of the water outlet intercepting plate (45) can be adjusted according to the height of the water surface, so that the water outlet intercepting plate (45) is located under the water surface;

Step (3): The suspended filler can be controlled under the water outlet interceptor plate (45) under the blocking of the outlet water interceptor plate (45), and through the action of the inclined surface of the outlet water interceptor plate (45), a large amount of suspended filler is concentrated on the outlet water interceptor One side of the bottom end of the plate (45) controls the start of the worm gear centrifugal pump (41), and under the suction of the worm gear centrifugal pump (41), the mixed liquid on the other side of the inner cavity of the pool body (1) can pass through the liquid inlet pipe ( 42), so that a large amount of suspended fillers follow the mixed solution into the inner cavity side of the tank body (1) through the liquid inlet pipe (42), thereby eliminating the accumulation of suspended fillers and allowing the mixed solution to pass through the water outlet interception plate (45) normally , and replenish the suspended filler on one side of the inner cavity of the pool body (1).