Filamentous bacterium killing device for biological tank

Abstract

The utility model relates to the technical field of sewage treatment, in particular to a filamentous bacterium killing device for a biological tank, which comprises a suction device and a liquid storage tank. The suction device is movably installed along the biological pool body through a cable, a bottom plate and a top plate are arranged in the suction device, a telescopic rod is arranged between the bottom plate and the top plate, air bags are arranged on the two sides of the bottom plate, a suction pump is installed on the bottom plate, a driving mechanism is arranged on the top plate, and the driving mechanism is matched with the cable; the suction pump is connected with the infusion tube, the infusion tube is matched with the liquid storage tank, a liquid discharge tube is arranged at the bottom of the liquid storage tank, a liquid discharge pump is mounted on the liquid discharge tube, a Venturi tube is mounted on the liquid discharge tube behind the liquid discharge pump, and a suction port of the Venturi tube is communicated with the bottom of the disinfection tank. The device is stable in operation, suction, buffer storage and sterilization of filamentous fungus foam can be realized in the operation process, sludge bulking caused by excessive reproduction of filamentous fungi is completely eradicated, and the device is convenient to use in a sewage treatment process.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a filamentous bacteria disinfecting device in a biological pool. Background Art

[0002] Filamentous fungi are a type of multicellular fungi that are widely distributed in aquatic environments, moist soils, and activated sludge. In sewage treatment systems, filamentous fungi cross-weave in the flocs in activated sludge, or grow on the surface of flocs, forming the skeleton of flocs. They also have a strong ability to oxidize and decompose organic matter, playing a positive role in the stable operation of sewage treatment systems.

[0003] But everything has its pros and cons. An appropriate amount of filamentous bacteria plays a positive role in ensuring the stable operation of the sewage treatment system. However, if the filamentous bacteria reproduce excessively, it will cause the activated sludge to expand. On the one hand, the sludge flocculation and sedimentation properties will decrease, the solid-liquid separation in the secondary sedimentation tank will be difficult, the return sludge concentration will decrease, and the effluent water quality will be abnormal. On the other hand, a large amount of foam will be generated, which makes it impossible to maintain the normal operation of the biochemical treatment.

[0004] The existing control methods for filamentous bacteria mainly include adding flocculants or directly adding chemicals. Among them, organic or inorganic flocculants are added to increase the specific gravity of sludge flocs, thereby increasing the flocculation and sedimentation of sludge, while direct addition of chemicals, such as chlorine, hydrogen peroxide, ozone and sodium hypochlorite, can directly kill filamentous bacteria, thereby improving the biochemical environment of the pool. There are many existing studies on direct addition of chemicals, but in actual production, direct addition of chemicals will also kill other bacteria in the biological pool, which is not conducive to the stability of the biochemical environment. Therefore, a device for killing filamentous bacteria in a biological pool without affecting the stability of the biochemical environment of the biological pool is a problem that needs to be solved. Utility Model Content

[0005] The utility model aims to provide a biological pool filamentous bacteria disinfecting device to solve the above-mentioned deficiencies in the prior art, so as to achieve the purpose of disinfecting excessive filamentous bacteria in the biological pool without affecting the biochemical environment of the biological pool.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a biological pool filamentous bacteria disinfection device, including a suction device and a liquid storage tank, the suction device is movably installed along the biological pool body, and the liquid storage tank is arranged along the biological pool body; a suction pump is arranged in the suction device, the suction pump is matched with the liquid storage tank through an infusion tube, and the liquid storage tank is connected to the disinfection tank.

[0007] Furthermore, a cable is arranged and installed on the biological pool body, and the suction device is movably installed on the cable.

[0008] Furthermore, the suction device includes a bottom plate, air bags are arranged on both sides of the bottom plate, the suction pump is installed on the bottom plate, the bottom plate is connected to the top plate through a telescopic rod, a driving mechanism is arranged on the top plate, and the driving mechanism cooperates with the cable.

[0009] Furthermore, the liquid inlet of the suction pump extends below the liquid surface, the infusion tube is installed on the top plate, and the liquid outlet of the suction pump is connected to the infusion tube through a connecting hose.

[0010] Furthermore, the telescopic rod is provided with a fixed sleeve and a movable rod, the fixed sleeve is sleeved with the movable rod, the fixed sleeve is connected to the bottom plate, the movable rod is connected to the top plate, a limit baffle is provided above the fixed sleeve, a limit block is provided below the movable rod, and the limit block cooperates with the limit baffle.

[0011] Furthermore, the driving mechanism is provided with a driving motor and a roller, the roller cooperates with the cable, and the driving motor drives the roller via a bevel gear set.

[0012] Furthermore, travel switches are provided at both ends of the cable, and the travel switches cooperate with the drive motor.

[0013] Furthermore, a drainage pipe is provided at the bottom of the liquid storage tank, a drainage pump is installed on the drainage pipe, a venturi tube is provided on the drainage pipe behind the drainage pump, and a suction port of the venturi tube is connected to the bottom of the disinfection tank.

[0014] Furthermore, a liquid level sensor is installed in the liquid storage tank, and the liquid level sensor cooperates with the liquid discharge pump.

[0015] Furthermore, the drainage pipe extends to the raw water inlet of the sewage treatment plant.

[0016] Beneficial effects of the utility model:

[0017] 1. The driving mechanism drives the suction device to run back and forth on the cable, so as to realize the suction of the filamentous bacteria foam in the biological pool. The suction process is relatively thorough, which can effectively ensure the removal effect of the filamentous bacteria;

[0018] 2. The bottom plate and top plate of the suction device are connected by telescopic rods, and air bags are arranged on both sides of the bottom plate, so that when the liquid level of the biological pool fluctuates, the stable operation of the device can be guaranteed, and the stability of the device is better;

[0019] 3. The liquid storage tank can store the extracted foam liquid on the one hand, and the intermittent operation of the drainage pump on the other hand can effectively ensure the stability of transportation and reduce energy consumption. In addition, the disinfectant can be automatically sucked out during the operation of the drainage pump, which is more energy-saving, convenient and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main view of the overall structure of the utility model;

[0021] Figure 2 It is a top view schematic diagram of the overall structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the structure of the suction device of the utility model;

[0023] Figure 4 This utility model Figure 1 A schematic diagram of the structure of part A in the middle;

[0024] Figure 5 It is a schematic diagram of the structure of the telescopic rod of the utility model.

[0025] The names corresponding to the marks in the figure are:

[0026] 1. Biological pool body; 2. Suction device; 21. Bottom plate; 211. Air bag; 22. Suction pump; 221. Liquid inlet; 222. Liquid outlet; 223. Connecting hose; 224. Infusion tube; 23. Telescopic rod; 231. Fixed sleeve; 232. Movable rod; 233. Limit baffle; 234. Limit block; 24. Top plate; 25. Driving mechanism; 251. Driving motor; 252. Bevel gear set; 253. Roller; 3. Liquid storage tank; 31. Discharge pipe; 311. Discharge pump; 312. Venturi tube; 32. Liquid level sensor; 4. Disinfection tank; 5. Cable; 51. Travel switch. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0028] Embodiments of the present utility model:

[0029] like Figure 1-5 As shown, in this embodiment, a suction device 2 and a liquid storage tank 3 are provided. The liquid storage tank 3 is arranged along the biological pool body 1, and a cable 5 is arranged and installed through the biological pool body 1. The cable 5 cooperates with the suction device 2. At the same time, the suction device 2 floats in the biological pool, and the suction device 2 cooperates with the liquid storage tank 3.

[0030] A bottom plate 21 is provided in the suction device 2, and air bags 211 are provided on both sides of the bottom plate 21. The bottom plate 21 floats on the liquid surface of the biological pool through the air bags 211. The bottom plate 21 is connected to the top plate 24 through a telescopic rod 23. A suction pump 22 is installed on the bottom plate 21. The liquid inlet 221 of the suction pump 22 extends below the liquid surface. The liquid outlet 222 of the suction pump 22 is connected to the infusion tube 224 on the top plate 24 through a connecting hose 223, and the infusion tube 224 cooperates with the liquid storage tank 3.

[0031] A driving mechanism 25 is provided on the top plate 24, wherein a driving motor 251 is provided in the driving mechanism 25, and the driving motor 251 drives the roller 253 below the top plate 24 through the bevel gear set 252. The roller 253 is provided with two groups, one group is powered and the other group is unpowered, and two groups of rollers 253 are provided to cooperate with the cable 5 respectively; travel switches 51 are provided at both ends of the cable 5, and the travel switches 51 on both sides are respectively linked with the driving motor 251.

[0032] A fixed sleeve 231 and a movable rod 232 are provided in the telescopic rod 23, and the fixed sleeve 231 and the movable rod 232 are sleeved together, wherein the fixed sleeve 231 is connected to the bottom plate 21, and the movable rod 232 is connected to the top plate 24, a limiting baffle 233 is provided above the fixed sleeve 231, and a limiting block 234 is provided below the movable rod 232, and the limiting block 234 cooperates with the limiting baffle 233.

[0033] A liquid level sensor 32 is installed in the liquid storage tank 3, and a drainage pipe 31 is arranged at the bottom of the liquid storage tank 3, a drainage pump 311 is installed on the drainage pipe 31, the drainage pump 311 is linked with the liquid level sensor 32, and a venturi tube 312 is installed on the drainage pipe 31 behind the drainage pump 311, and the suction port of the venturi tube 312 is connected to the bottom of the disinfection tank 4.

[0034] The principle of this utility model is:

[0035] When the utility model is in use, when a lot of foam appears on the surface of the biological pool, it indicates that the filamentous bacteria in the biological pool reproduce excessively and there is a risk of causing sludge expansion. At this time, the utility model device can be started.

[0036] After the device of the utility model is started, the driving motor 251 drives the suction device 2 to move on the cable 5, so that the filamentous bacteria foam in the biological pool body 1 can be sucked into the liquid storage tank 3. During the movement of the suction device 2, it cooperates with the travel switch 51 to achieve reciprocating motion on the cable 5. During the reciprocating motion, the suction pump 22 sucks and removes the foam rich in filamentous bacteria on the surface of the liquid in the biological pool, thereby effectively avoiding the expansion of filamentous bacteria sludge in the biological pool.

[0037] During the suction process, the suction pump 22 transports the sucked liquid foam to the liquid storage tank 3 for storage. When the liquid level in the liquid storage tank 3 reaches a certain height, the drainage pump 311 on the drainage pipe 31 is activated (high and low liquid levels are set, the drainage pump 311 starts at high liquid level and stops at low liquid level), and the liquid in the liquid storage tank 3 is pumped to the raw water area of ​​the factory. During the transportation process, the disinfectant in the disinfection tank 4, such as sodium hypochlorite solution, is sucked into the drainage pipe 31 through the venturi tube 312. During the transportation process, the filamentous bacteria can be thoroughly disinfected, avoiding the situation where the extracted filamentous bacteria return to the biological pool for continued enrichment along with the water treatment.

[0038] The implementation of the present invention involves simple automatic control, such as the travel switch 51 cooperates with the drive motor 251 to realize the reciprocating motion of the suction device 2; the liquid level sensor 32 cooperates with the discharge pump 311 to realize the intermittent delivery of the liquid in the liquid storage tank 3, etc. It also involves the power supply of electrical equipment, such as the drive motor 251 and the suction pump 22. The cable drag chain can be used in the process. The signal transmission and control principles involved in the above process are relatively simple, which is not difficult for technical personnel in this field to understand and will not be elaborated here.

Claims

1. A biological pool filamentous bacteria disinfecting device, characterized by: The invention comprises a suction device (2), a liquid storage tank (3) and a disinfection tank (4); the suction device (2) is movably installed along the biological pool body (1); the liquid storage tank (3) is arranged along the biological pool body (1); a suction pump (22) is arranged in the suction device (2); the suction pump (22) cooperates with the liquid storage tank (3) through an infusion tube (224); and the liquid storage tank (3) is connected to the disinfection tank (4).

2. A biological pool filamentous bacteria disinfecting device according to claim 1, characterized in that: A cable (5) is arranged and installed on the biological pool body (1), and the suction device (2) is movably installed on the cable (5).

3. A biological pool filamentous bacteria disinfecting device according to claim 2, characterized in that: The suction device (2) comprises a bottom plate (21), air bags (211) are arranged on both sides of the bottom plate (21), a suction pump (22) is installed on the bottom plate (21), and is connected to a top plate (24) via a telescopic rod (23) on the bottom plate (21), a driving mechanism (25) is arranged on the top plate (24), and the driving mechanism (25) cooperates with the cable (5).

4. A biological pool filamentous bacteria disinfecting device according to claim 3, characterized in that: The liquid inlet (221) of the suction pump (22) extends below the liquid surface, the liquid infusion tube (224) is installed on the top plate (24), and the liquid outlet (222) of the suction pump (22) is connected to the liquid infusion tube (224) via a connecting hose (223).

5. A biological pool filamentous bacteria disinfecting device according to claim 3, characterized in that: The telescopic rod (23) is provided with a fixed sleeve (231) and a movable rod (232), the fixed sleeve (231) and the movable rod (232) are sleeved, the fixed sleeve (231) is connected to the bottom plate (21), the movable rod (232) is connected to the top plate (24), a limit baffle (233) is provided above the fixed sleeve (231), a limit block (234) is provided below the movable rod (232), and the limit block (234) cooperates with the limit baffle (233).

6. A biological pool filamentous bacteria disinfecting device according to claim 3, characterized in that: The driving mechanism (25) is provided with a driving motor (251) and a roller (253). The roller (253) cooperates with the cable (5). The driving motor (251) transmits power to the roller (253) via a bevel gear set (252).

7. A biological pool filamentous bacteria disinfecting device according to claim 6, characterized in that: Travel switches (51) are provided at both ends of the cable (5), and the travel switch (51) cooperates with the driving motor (251).

8. A biological pool filamentous bacteria disinfecting device according to claim 1, characterized in that: A drainage pipe (31) is provided at the bottom of the liquid storage tank (3), a drainage pump (311) is installed on the drainage pipe (31), a venturi tube (312) is provided on the drainage pipe (31) behind the drainage pump (311), and a suction port of the venturi tube (312) is connected to the bottom of the disinfection tank (4).

9. A biological pool filamentous bacteria disinfecting device according to claim 8, characterized in that: A liquid level sensor (32) is installed in the liquid storage tank (3), and the liquid level sensor (32) cooperates with the liquid discharge pump (311).

10. A biological pool filamentous bacteria disinfecting device according to claim 8, characterized in that: The drainage pipe (31) extends to the raw water inlet of the sewage treatment plant.

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