Biochemical treatment tank for papermaking sewage

Abstract

The utility model relates to the field of sewage treatment equipment, in particular to a papermaking sewage biochemical treatment pond which comprises a pond body, a liquid inlet pipe and a liquid outlet pipe are arranged in the pond body, one ends of the liquid inlet pipe and the liquid outlet pipe are closed, a drain valve is arranged at the lower end of the pond body, the liquid inlet pipe and the liquid outlet pipe are connected through a plurality of U-shaped pipes, a heating box is arranged outside the pond body, and heat exchange liquid is filled in the heating box. An electric heating pipe is arranged in the heating box, the liquid inlet pipe and the liquid outlet pipe are both connected with the heating box, and a conveying pump is arranged on the liquid inlet pipe. According to the utility model, the sewage is at the optimal temperature suitable for biochemical reaction, so that the biochemical treatment effect of the sewage is better.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment equipment, in particular to a biochemical treatment tank for papermaking sewage. Background Technique

[0002] In the process of papermaking, sewage is generated. This sewage contains some organic substances and needs to be treated biochemically. Biochemical treatment is to oxidize and decompose the organic substances in the sewage through the physiological functions of the microorganisms' own metabolism to achieve the effect of sewage purification. The activity of microorganisms is related to temperature. Too high or too low temperature will affect the activity of microorganisms, thus affecting the effect and efficiency of biochemical treatment. Therefore, it is particularly necessary to develop a biochemical treatment tank for papermaking sewage that can regulate the sewage temperature and keep the sewage temperature at the most suitable temperature for the survival of microorganisms. Summary of the Invention

[0003] The purpose of the utility model is to provide a biochemical treatment tank for papermaking sewage, which has the advantages of being able to regulate the sewage temperature, keeping the sewage temperature at the most suitable temperature for the survival of microorganisms, and having good sewage biochemical treatment.

[0004] The adopted technical scheme is as follows:

[0005] A biochemical treatment tank for papermaking sewage includes a tank body. An inlet pipe and an outlet pipe with one end closed are arranged in the tank body. A drain valve is arranged at the lower end of the tank body. A plurality of U-shaped pipes are used to connect the inlet pipe and the outlet pipe. A heating tank is arranged outside the tank body. A heat exchange liquid is filled in the heating tank. An electric heating pipe is arranged in the heating tank. Both the inlet pipe and the outlet pipe are connected to the heating tank. A delivery pump is arranged on the inlet pipe.

[0006] Preferably, a scraper and a plurality of guide shafts are arranged at the lower end inside the tank body. The scraper is slidably connected to the guide shafts. A plurality of sewage suction pipes are arranged on the side of the scraper. The sewage suction pipes are all connected with hoses extending above the tank body, and the hoses are all connected with sludge suction devices.

[0007] Preferably, V-shaped wheels are arranged on both sides at the lower end inside the tank body. Steel cables are connected to both sides of the scraper. After being guided by the V-shaped wheels, the steel cables extend to the upper end of the tank body and are both connected to a hoisting mechanism arranged at the upper end of the tank body.

[0008] Preferably, a temperature sensor is arranged in the middle of the tank body.

[0009] Preferably, the heat exchange liquid is heat exchange oil.

[0010] Preferably, stirring blades are arranged in the heating tank, and a driving motor connected to the stirring blades is arranged on the side wall of the heating tank.

[0011] Compared with the prior art, the beneficial effects are as follows:

[0012] 1. The utility model heats the heat exchange liquid by using a heating box, transports the high-temperature heat exchange liquid to the pool body through a liquid inlet pipe, and enters the liquid outlet pipe through each U-shaped pipe. During the process of the heat exchange liquid flowing in the pool body, the heat exchange liquid is used to heat the sewage in the pool body, so that the sewage is at the optimal temperature suitable for biochemical reactions, and the effect of sewage biochemical treatment is better.

[0013] 2. A scraper is arranged at the bottom end of the pool body in the utility model, and a sewage suction pipe is arranged on the side of the scraper, which is convenient for scraping and sucking away the impurities accumulated at the bottom end of the pool body, and is convenient for cleaning the impurities at the bottom end of the pool body. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a biochemical treatment pool for papermaking sewage of the utility model,

[0015] Figure 2 is Figure 1 the schematic structural diagram at A in

[0016] Figure 3 is Figure 1 the schematic structural diagram at B in

[0017] In the figure: 1. Pool body, 2. Liquid inlet pipe, 3. Liquid outlet pipe, 4. Drain valve, 5. U-shaped pipe, 6. Heating box, 7. Liquid inlet valve, 8. Discharge valve, 9. Electric heating pipe, 10. Delivery pump, 11. Stirring blade, 12. Driving motor, 13. Temperature sensor, 14. Scraper, 15. Sewage suction pipe, 16. Hose, 17. Mud sucker, 18. Steel cable, 19. V-shaped wheel, 20. Hoisting mechanism. Detailed Embodiments

[0018] The following further describes the utility model in conjunction with specific embodiments, as Figures 1 to 3 shown:

[0019] Embodiment 1: A biochemical treatment pool for papermaking sewage includes a pool body, in which a liquid inlet pipe 2 and a liquid outlet pipe 3 with one end closed are arranged. A drain valve 4 is arranged at the lower end of the pool body, and the drain valve 4 is used to discharge the sewage after biochemical treatment inside the pool body. A plurality of U-shaped pipes 5 are used to connect the liquid inlet pipe 2 and the liquid outlet pipe 3, and the liquid in the liquid inlet pipe 2 enters the liquid outlet pipe 3 through each U-shaped pipe 5.

[0020] A heating box 6 is arranged outside the pool body. The heating box 6 is filled with heat exchange liquid. A liquid inlet valve 7 and a discharge valve 8 are respectively arranged at the upper and lower ends of the heating box 6. An electric heating pipe 9 is arranged inside the heating box 6, and the electric heating pipe 9 heats the heat exchange liquid in the heating box 6. Both the liquid inlet pipe 2 and the liquid outlet pipe 3 are connected to the heating box 6, and a delivery pump 10 is arranged on the liquid inlet pipe 2.

[0021] The transfer pump 10 sends the heated heat exchange liquid in the heating tank 6 into the U-shaped tubes 5 through the liquid inlet pipe 2, and enters the liquid outlet pipe 3 from each U-shaped tube 5. During the process of the heat exchange liquid flowing in the pool body, the heat exchange liquid is used to heat the sewage in the pool body, so that the sewage is at the optimal temperature suitable for biochemical reactions, and the effect of sewage biochemical treatment is better.

[0022] Embodiment 2: A biochemical treatment pool for papermaking sewage, including a pool body 1. Inside the pool body 1, there is a liquid inlet pipe 2 and a liquid outlet pipe 3 with one end closed. A drain valve 4 is arranged at the lower end of the pool body 1, and the drain valve 4 is used to discharge the sewage that has undergone biochemical treatment inside the pool body 1. A plurality of U-shaped tubes 5 are used to connect the liquid inlet pipe 2 and the liquid outlet pipe 3. The liquid in the liquid inlet pipe 2 enters the liquid outlet pipe 3 from each U-shaped tube 5.

[0023] Outside the pool body 1, there is a heating tank 6. The heating tank 6 is filled with a heat exchange liquid, and the heat exchange liquid is a heat exchange oil. The heat exchange oil is not easy to freeze and has a large temperature range. An inlet valve 7 and a discharge valve 8 are respectively arranged at the upper and lower ends of the heating tank 6. An electric heating tube 9 is arranged inside the heating tank 6, and the electric heating tube 9 heats the heat exchange liquid in the heating tank 6. Both the liquid inlet pipe 2 and the liquid outlet pipe 3 are connected to the heating tank 6. A transfer pump 10 is arranged on the liquid inlet pipe 2. Stirring blades 11 are arranged inside the heating tank 6, and a driving motor 12 connected to the stirring blades 11 is arranged on the side wall of the heating tank 6. The driving motor 12 drives the stirring blades 11 to rotate, thereby agitating the heating liquid to make the temperature of the heating liquid uniform.

[0024] The transfer pump 10 sends the heated heat exchange liquid in the heating tank 6 into the U-shaped tubes 5 through the liquid inlet pipe 2, and enters the liquid outlet pipe 3 from each U-shaped tube 5. During the process of the heat exchange liquid flowing in the pool body 1, the heat exchange liquid is used to heat the sewage in the pool body 1, so that the sewage is at the optimal temperature suitable for biochemical reactions, and the effect of sewage biochemical treatment is better. A temperature sensor 13 is arranged in the middle of the pool body 1, and the temperature sensor 13 monitors the temperature of the sewage.

[0025] At the lower inner part of the pool body 1, there is a scraper 14 and a plurality of guide shafts. The scraper 14 is slidably connected to the guide shafts. A plurality of sewage suction pipes 15 are arranged on the side of the scraper 14. Each sewage suction pipe 15 is connected to a hose 16 extending above the pool body 1, and each hose 16 is connected to a sludge suction device 17. The sludge suction device 17 is a prior art and will not be elaborated here; on both sides of the lower inner part of the pool body 1, there are V-shaped wheels 19. Cables 18 are connected to both sides of the scraper 14. The cables 18 are guided by the V-shaped wheels 19 and extend to the upper end of the pool body 1 and are both connected to a hoisting mechanism 20 arranged at the upper end of the pool body 1. The hoisting mechanism 20 pulls the cables 18 to control the movement of the scraper 14 inside the pool body 1. The scraper 14 is used to push the impurities at the bottom of the pool body 1. As the impurities accumulate, the impurities are sucked away by the sewage suction pipes 15, the hoses 16 and the sludge suction device 17.

[0026] The specific working process is as follows: Start the electric heating tube 9, the drive motor 12 and the delivery pump 10. The delivery pump 10 uses the liquid inlet pipe 2 to deliver the high-temperature heat exchange liquid into the pool body 1, and it enters the liquid outlet pipe 3 through each U-shaped pipe 5. During the process of the heat exchange liquid flowing in the pool body 1, the heat exchange liquid is used to heat the sewage in the pool body 1. According to the temperature sensor 13, the power of the electric heating tube 9 is adjusted to make the sewage at the optimal reaction temperature of the microorganisms, and the sewage is subjected to biochemical treatment. After the treatment is completed, the drain valve 4 is opened to discharge the sewage. When impurities accumulate at the bottom of the pool body 1 and need to be cleaned, the hoisting mechanism 20 pulls the steel cable 18 to control the movement of the scraper 14 inside the pool body 1, and the scraper 14 is used to push the impurities at the bottom of the pool body 1. As the impurities accumulate, the impurities are sucked away by the sewage suction pipe 15, the hose 16 and the sludge suction device 17 to prevent excessive accumulation of impurities.

[0027] The above-mentioned embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention belong to the scope of protection required by the present invention.

Claims

1. A biochemical treatment pool for papermaking wastewater, characterized in that: It includes a pool body, in which a liquid inlet pipe and a liquid outlet pipe with closed ends are arranged, a drain valve is arranged at the lower end of the pool body, the liquid inlet pipe and the liquid outlet pipe are connected by multiple U-shaped pipes, a heating box is arranged outside the pool body, the heating box is filled with heat exchange liquid, an electric heating pipe is arranged in the heating box, the liquid inlet pipe and the liquid outlet pipe are both connected to the heating box, and a delivery pump is arranged on the liquid inlet pipe.

2. A papermaking wastewater biochemical treatment pool as claimed in claim 1, characterized in that: A scraper and a plurality of guide shafts are arranged at the inner lower end of the pool body, the scraper and the guide shafts are slidably connected, a plurality of sewage suction pipes are arranged on the side of the scraper, the sewage suction pipes are connected to a hose extending above the pool body, and the hoses are connected to a sludge suction device.

3. A papermaking wastewater biochemical treatment pool as claimed in claim 2, characterized in that: V-shaped wheels are arranged on both sides of the lower end of the pool body, and steel cables are connected to both sides of the scraper. The steel cables are guided by the V-shaped wheels and extend to the upper end of the pool body and are connected to a winch mechanism arranged at the upper end of the pool body.

4. A papermaking wastewater biochemical treatment pool as claimed in claim 1, characterized in that: A temperature sensor is arranged in the middle of the pool body.

5. A papermaking wastewater biochemical treatment pool as claimed in claim 1, characterized in that: The heat exchange fluid is heat exchange oil.

6. A papermaking wastewater biochemical treatment pool as claimed in claim 1, characterized in that: The heating box is provided with stirring blades, and the side wall of the heating box is provided with a driving motor connected with the stirring blades.

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