Moving bed biofilm reactor (MBBR) carrier compact biofilm preparation device

Abstract

The utility model discloses an MBBR (moving bed biofilm reactor) carrier compact biological membrane preparation device which comprises a base, the cylinder body is fixedly arranged on one side of the top end of the base; the feeding pipe is fixedly arranged on one side of the outer wall of the cylinder body, and the feeding pipe is communicated with the inner cavity of the cylinder body; the discharging pipe is fixedly arranged on the other side of the outer wall of the cylinder body, and the discharging pipe is communicated with the inner cavity of the cylinder body; the rotary compacting mechanism is arranged in an inner cavity of the cylinder body; and the discharging telescopic mechanism is arranged at the top end of the cylinder body. According to the MBBR carrier compact biological membrane preparation device, rotation of the inner cylinder can be controlled by arranging the rotary compacting mechanism, centrifugal force is provided for an MBBR carrier, a loose biological membrane on the MBBR carrier is compacted, and moisture generated in the biological membrane compacting process can be taken away by providing dry air; by arranging the discharging telescopic mechanism, the densified MBBR carrier can be conveniently drawn out, so that the device is suitable for densification of the MBBR carrier biological membrane.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a device for preparing a dense biofilm on an MBBR carrier. Background Technique

[0002] The activated sludge dense sludge process is to carry out a densification reaction on slowly growing polyphosphate bacteria / glycogen bacteria, etc., to produce high-quality dense sludge with good rapid sedimentation performance, so as to form a bacterial dual sludge age ecosystem (flocculent sludge / dense sludge) in the biological reaction tank. This dual sludge age system can not only improve the treatment capacity, reduce the unit energy consumption, but also save phosphorus removal precipitation agents and sludge dewatering flocculation agents. The biochemical treatment of sewage can be divided into the activated sludge method and the biofilm method. MBBR is a moving bed biofilm reactor, belonging to the biofilm method. Due to the full contact between the carrier biofilm and the sewage, it has obvious process advantages. In view of the good effect of the activated sludge dense sludge process, preparing a dense biofilm on the MBBR carrier can also obtain a dual sludge age ecosystem on the carrier biofilm, so as to better exert the advantages of the MBBR process;

[0003] The existing activated sludge dense sludge preparation process mainly densifies flocculent activated sludge. The process mainly takes certain measures to screen flocculent activated sludge into high-quality dense sludge and loose light sludge. However, the MBBR carrier biofilm adheres to the inner surface of the filler, and the existing densification process is not applicable to the densification of the MBBR carrier biofilm. Content of the Utility Model

[0004] The purpose of the utility model is to provide a device for preparing a dense biofilm on an MBBR carrier to solve the problems in the prior art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A device for preparing a dense biofilm on an MBBR carrier, comprising:

[0006] A base;

[0007] A cylinder body, fixedly arranged on one side of the top of the base;

[0008] A feed pipe, fixedly arranged on one side of the outer wall of the cylinder body, and the feed pipe communicates with the inner cavity of the cylinder body;

[0009] A discharge pipe, fixedly arranged on the other side of the outer wall of the cylinder body, and the discharge pipe communicates with the inner cavity of the cylinder body;

[0010] A rotary densification mechanism, arranged in the inner cavity of the cylinder body;

[0011] A discharge telescopic mechanism, arranged on the top of the cylinder body.

[0012] Preferably, the rotary densification mechanism includes: a motor fixedly arranged at the top end of the cylinder body; a rotating shaft, the output end of the motor extends into the inner cavity of the cylinder body and is locked with a rotating shaft through a coupling; a connecting rod fixedly arranged on the outer wall of the rotating shaft; an inner cylinder fixedly arranged outside the connecting rod, and a plurality of through holes are arranged on the outer wall and the bottom end of the inner cylinder; a drain valve fixedly arranged on one side of the bottom end of the outer wall of the cylinder body; a drain pipe fixedly connected to one side of the drain valve through a flange.

[0013] Preferably, the rotary densification mechanism further includes: an air compressor fixedly arranged on the other side of the top end of the base; an air dryer fixedly arranged on the top end of the base, and the air dryer is connected to the air compressor; a spray pipe in interference fit with one side of the air dryer, and one end of the spray pipe extends into the inner cavity of the cylinder body; air nozzles, and a plurality of air nozzles are screwed on the outer wall of the spray pipe from left to right.

[0014] Preferably, exhaust holes are arranged on both the left and right sides of the top end of the cylinder body.

[0015] Preferably, the discharging telescopic mechanism includes: a hydraulic cylinder fixedly arranged on one side of the top end of the cylinder body; a telescopic pipe, and a telescopic pipe is fixedly arranged at the bottom end of the discharging pipe; a suction pipe fixedly arranged at the bottom end of the telescopic pipe; a connecting plate fixedly arranged on the outer wall of the suction pipe, and the bottom end of the hydraulic cylinder is fixedly arranged on the top end of the connecting plate.

[0016] Preferably, one ends of the feeding pipe and the discharging pipe both extend into the inner cavity of the inner cylinder.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: in this MBBR carrier dense biofilm preparation device, by arranging a rotary densification mechanism, the rotation of the inner cylinder can be controlled to provide centrifugal force for the MBBR carrier to densify the loose biofilm on the MBBR carrier. By providing dry air, the moisture generated during the biofilm densification process can be taken away. By arranging a discharging telescopic mechanism, it is convenient to extract the densified MBBR carrier, so that it is applicable to the densification of the MBBR carrier biofilm, with good densification effect, effectively prolonging its service life and strong practicability. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2 is an enlarged view of the positive A position of the cylinder body of the present utility model;

[0020] Figure 3 is the present utility model Figure 2 in the schematic structural diagram;

[0021] Figure 4 This is a schematic structural view of the material suction pipe of the present utility model.

[0022] In the figure: 1, base; 2, cylinder body; 3, feed pipe; 4, discharge pipe; 5, rotary compaction mechanism; 51, motor; 52, rotating shaft; 53, connecting rod; 54, inner cylinder; 55, through hole; 56, drain valve; 57, drain pipe; 58, air compressor; 59, air dryer; 510, spray pipe; 511, air nozzle; 6, discharge telescopic mechanism; 61, hydraulic cylinder; 62, telescopic pipe; 63, material suction pipe; 64, connecting plate; 7, exhaust hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , the present utility model provides a technical solution: an MBBR carrier dense biofilm preparation device, comprising: a base 1, a cylinder body 2, a feed pipe 3, a discharge pipe 4, a rotary compaction mechanism 5 and a discharge telescopic mechanism 6;

[0025] The cylinder body 2 is fixedly arranged on one side of the top end of the base 1, the feed pipe 3 is fixedly arranged on one side of the outer wall of the cylinder body 2, and the feed pipe 3 communicates with the inner cavity of the cylinder body 2. The discharge pipe 4 is fixedly arranged on the other side of the outer wall of the cylinder body 2, and the discharge pipe 4 communicates with the inner cavity of the cylinder body 2. The rotary compaction mechanism 5 is arranged in the inner cavity of the cylinder body 2, and the discharge telescopic mechanism 6 is arranged on the top end of the cylinder body 2.

[0026] As a preferred solution, further, the rotary compaction mechanism 5 includes: a motor 51, a rotating shaft 52, a connecting rod 53, an inner cylinder 54, a through hole 55, a drain valve 56, a drain pipe 57, an air compressor 58, an air dryer 59, a spray pipe 510 and an air nozzle 511;

[0027] In order to provide centrifugal force to the MBBR carrier, the motor 51 is fixedly arranged at the top end of the cylinder body 2. The output end of the motor 51 extends into the inner cavity of the cylinder body 2 and is locked with a rotating shaft 52 through a coupling. A connecting rod 53 is fixedly arranged on the outer wall of the rotating shaft 52, and an inner cylinder 54 is fixedly arranged outside the connecting rod 53. A plurality of through holes 55 are formed in the outer wall and the bottom end of the inner cylinder 54. The aperture of the through holes 55 is smaller than the diameter of the MBBR carrier, generally set to 5-10 mm. A drain valve 56 is fixedly arranged on one side of the bottom end of the outer wall of the cylinder body 2. A drain pipe 57 is fixedly connected to one side of the drain valve 56 through a flange. Most of the water brought into the transfer cylinder body 2 is discharged through the drain pipe 57. When the water discharged from the drain pipe 57 is discontinuous, the drain valve 56 is closed.

[0028] In order to remove the water generated during the densification process of the biofilm, an air compressor 58 is fixedly arranged on the other side of the top end of the base 1, an air dryer 59 is fixedly arranged on the top end of the base 1, and the air dryer 59 is connected to the air compressor 58. A spray pipe 510 is in interference fit with one side of the air dryer 59, and one end of the spray pipe 510 extends into the inner cavity of the cylinder body 2. A plurality of air nozzles 511 are screwed on the outer wall of the spray pipe 510 from left to right.

[0029] As a preferred solution, further, exhaust holes 7 are formed on both the left and right sides of the top end of the cylinder body 2, and air and moisture are discharged through the exhaust holes 7 at the top of the device.

[0030] As a preferred solution, further, the discharge telescopic mechanism 6 includes: a hydraulic cylinder 61, a telescopic pipe 62, a suction pipe 63, and a connecting plate 64;

[0031] In order to extend and control the length of the discharge pipe 4, the hydraulic cylinder 61 is fixedly arranged on one side of the top end of the cylinder body 2. The bottom end of the discharge pipe 4 is fixedly provided with a telescopic pipe 62, the suction pipe 63 is fixedly arranged at the bottom end of the telescopic pipe 62, the connecting plate 64 is fixedly arranged on the outer wall of the suction pipe 63, and the bottom end of the hydraulic cylinder 61 is fixedly arranged on the top end of the connecting plate 64. The hydraulic cylinder 61 can drive the connecting plate 64 and the suction pipe 63 to move.

[0032] As a preferred solution, further, one ends of the feed pipe 3 and the discharge pipe 4 both extend into the inner cavity of the inner cylinder 54 to facilitate the feeding and discharging of the MBBR carrier.

[0033] The detailed connection means are well-known techniques in the art. The following mainly introduces the working principle and process. The specific work is as follows.

[0034] Step 1: The MBBR carrier with biofilm grown in the MBBR biochemical tank for sewage treatment is put into the cylinder body 2 through the feed pipe 3 by a certain method, so as to enter the inner cylinder 54, and the amount of the MBBR carrier is controlled within 30% of the capacity of the inner cylinder 54;

[0035] Step 2: Open the drain valve 56, and drain most of the water brought into the transfer cylinder 2 through the drain pipe 57. When the water discharged from the drain pipe 57 is discontinuous, close the drain valve 56 and start the motor 51. The motor 51 can drive the rotating shaft 52 to rotate clockwise around its own axis, so as to drive the inner cylinder 54 to rotate through the connecting rod 53, provide centrifugal force for the MBBR carrier, and densify the loose biofilm on the MBBR carrier.

[0036] Step 3: At the same time, control the air compressor 58 to start. The air passes through the air dryer 59 on the air supply pipeline to obtain dry compressed air. The compressed air then provides dry air to the inside of multiple air nozzles 511 through the spray pipe 510. The dry air takes away the moisture generated during the biofilm densification process, and the air and moisture are discharged through the exhaust hole 7 at the top of the device.

[0037] Step 4: Start the hydraulic cylinder 61. The hydraulic cylinder 61 can push the connecting plate 64 to move downward, so that the connecting plate 64 drives the suction pipe 63 to move downward, so that the suction pipe 63 drives the telescopic pipe 62 to telescopically move downward until the suction pipe 63 extends into the MBBR carrier inside the inner cylinder 54. Use the vacuum pump to extract the MBBR carrier through the discharge pipe 4 through the telescopic pipe 62. The densified MBBR carrier can be re-injected into the MBBR biochemical pool to enhance the treatment effect of the biochemical pool.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for preparing a dense biofilm of a MBBR carrier, characterized in that: include: Base (1); A cylinder (2) is fixedly arranged on one side of the top end of the base (1); A feed pipe (3) is fixedly arranged on one side of the outer wall of the cylinder (2), and the feed pipe (3) is in communication with the inner cavity of the cylinder (2); A discharge pipe (4) is fixedly arranged on the other side of the outer wall of the barrel (2), and the discharge pipe (4) is communicated with the inner cavity of the barrel (2); A rotating densification mechanism (5) is arranged in the inner cavity of the cylinder (2); The material discharging telescopic mechanism (6) is arranged at the top end of the cylinder (2).

2. The MBBR carrier dense biofilm preparation device according to claim 1, characterized in that: The rotating densification mechanism (5) comprises: A motor (51) fixedly arranged on the top end of the cylinder (2); A rotating shaft (52), wherein the output end of the motor (51) extends into the inner cavity of the cylinder (2) and is locked with the rotating shaft (52) via a coupling; A connecting rod (53) fixedly disposed on the outer wall of the rotating shaft (52); An inner cylinder (54) is fixedly arranged on the outer side of the connecting rod (53), and a plurality of through holes (55) are formed on the outer wall and the bottom end of the inner cylinder (54); A drain valve (56) is fixedly arranged on one side of the bottom end of the outer wall of the cylinder (2); A drain pipe (57) is fixedly connected to one side of the drain valve (56) via a flange.

3. The MBBR carrier dense biofilm preparation device according to claim 2, characterized in that: The rotating densification mechanism (5) further comprises: An air compressor (58) is fixedly arranged on the other side of the top end of the base (1); an air dryer (59) fixedly disposed on the top of the base (1), and the air dryer (59) is connected to the air compressor (58); A nozzle (510) is interference-fitted with one side of the air dryer (59), and one end of the nozzle (510) extends into the inner cavity of the barrel (2); Air nozzles (511), with a plurality of air nozzles (511) being threadedly connected to the outer wall of the nozzle pipe (510) from left to right.

4. The MBBR carrier dense biofilm preparation device according to claim 3, characterized in that: Exhaust holes (9) are provided on both left and right sides of the top end of the cylinder (2).

5. The MBBR carrier dense biofilm preparation device according to claim 4, characterized in that: The discharging telescopic mechanism (6) comprises: A hydraulic cylinder (61) is fixedly arranged on one side of the top end of the cylinder (2); A telescopic tube (62), the bottom end of the discharge tube (4) being fixedly provided with the telescopic tube (62); A material suction pipe (63) fixedly arranged at the bottom end of the telescopic tube (62); A connecting plate (64) is fixedly arranged on the outer wall of the suction pipe (63), and a bottom end of the hydraulic cylinder (61) is fixedly arranged on the top end of the connecting plate (64).

6. The MBBR carrier dense biofilm preparation device according to claim 5, characterized in that: One end of the feed pipe (3) and the discharge pipe (4) both extend into the inner cavity of the inner cylinder (54).

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