CN207645875U - An improved papermaking sewage treatment device - Google Patents

Abstract

The utility model discloses an improved papermaking sewage treatment device, which comprises a coagulation tank, a primary sedimentation tank and a secondary sedimentation tank, wherein the bottom of the primary sedimentation tank is provided with a mud scraping device, the mud scraping device comprises a driving mechanism, a rotating shaft and a mud scraping plate, the rotating shaft is arranged at the center of the bottom of the primary sedimentation tank, the lower end part of the rotating shaft is provided with a first gear, the output end of the driving mechanism is connected with a second gear, the center of the bottom of the primary sedimentation tank is provided with a mud discharge port, one side of the mud discharge port is provided with a connecting hole, the other side of the mud discharge port is fixed with a mounting frame, a bearing is arranged in the mounting frame, the mud discharge port is connected with a mud discharge pipe, the first end of the mud discharge pipe is communicated with the mud discharge port, the second end of the mud discharge pipe is connected with a sludge tank, the sludge tank is provided with a water supply pipeline, the bottom of the primary sedimentation tank is provided with a plurality of water, the treatment is more environment-friendly and energy-saving, and the production efficiency and the production benefit are improved.

Description

An improved papermaking sewage treatment device

technical field

The utility model relates to the technical field of papermaking equipment, in particular to an improved papermaking sewage treatment device.

Background technique

The amount of sewage generated in the papermaking process in the paper industry is very large and difficult to treat. The existing papermaking sewage treatment devices include coagulation tanks and sedimentation tanks. When the sewage enters the sedimentation tank, the flocs or flocculent sludge in the sewage are generally allowed to settle naturally to the bottom of the tank and sent to the sludge The treatment device is used for treatment, while the supernatant in the sedimentation tank is directly discharged through the drain or sent to other sections for reuse. The sludge in the existing sedimentation tank is dispersed at the bottom of the tank after sedimentation, and cannot be concentrated in one place. The traditional method of removing the sludge after sedimentation is to manually remove the sludge after draining the water in the tank. This method not only The labor intensity of the workers is high, the work efficiency is low, and the sedimentation tank cannot be used continuously, and the production cost of the enterprise is high, so it is necessary to improve it.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide an improved papermaking sewage treatment device, which has a simple structure, strong stability, and more environmentally friendly and energy-saving treatment.

In order to achieve the above purpose, the technical solution adopted by the utility model is: an improved papermaking sewage treatment device, including a coagulation tank, a primary sedimentation tank and a secondary sedimentation tank, and a mud scraping device is installed at the bottom of the primary sedimentation tank. It includes a driving mechanism, a rotating shaft and a mud scraper. The rotating shaft is installed at the center of the bottom of the primary sedimentation tank. The first end of the mud scraper is connected to the upper end of the rotating shaft. The second end of the mud scraper is adjacent to the inner wall of the primary sedimentation tank. The rotating shaft The lower end of the primary sedimentation tank is equipped with a first gear, the output end of the driving mechanism is connected with a second gear, and the first gear meshes with the second gear. There is a mud discharge port in the center of the bottom of the primary sedimentation tank, and a connection port is opened on one side of the mud discharge port. The output end of the driving mechanism goes through the connecting hole. A mounting frame is fixed on the other side of the mud discharge port. A bearing is installed in the mounting frame. The lower end of the rotating shaft is fixed to the bearing. A row of mud pipes are connected to the mud discharge port. The first end of the sludge discharge pipe is connected to the sludge discharge port, and the second end of the sludge discharge pipe is connected to a sludge tank. The upper part of the primary sedimentation tank is cylindrical, and the bottom of the primary sedimentation tank is conical. The bottom of the sedimentation tank has a number of water spray holes, each water spray hole is connected with a water spray pipe, the first end of each water spray pipe is connected with a water spray hole, and the second end of each water spray pipe is connected with the water delivery pipe. connected.

In a further technical solution, the upper end of the sludge tank is covered with a filter, the sludge discharge pipe communicates with the lower end of the sludge tank, and the water spray pipe communicates with the upper end of the sludge tank.

In a further technical solution, several spray holes are distributed at intervals at the bottom of the primary sedimentation tank.

In a further technical solution, the angle between each spray hole and the bottom of the primary sedimentation tank is 15-45°.

In a further technical solution, the sludge tank is provided with a sewage outlet, and the sewage outlet is connected with a filter press.

In a further technical solution, the driving mechanism is a driving motor.

In a further technical solution, the mud scraping device is installed at the bottom of the secondary settling tank, the upper part of the secondary settling tank is cylindrical, and the bottom of the secondary settling tank is conical.

In a further technical solution, the water spray pipe is equipped with a water spray pump, and the mud discharge pipe is equipped with a mud discharge pump.

After adopting the above structure, the utility model has the advantages compared with the prior art: the utility model has a simple structure, strong stability, can reduce the production cost of the enterprise, is more environmentally friendly and energy-saving, and improves the production efficiency and production benefit.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described.

Fig. 1 is a structural schematic diagram of an improved papermaking wastewater treatment device of the present invention.

In the picture:

1-primary sedimentation tank, 2-scraper device, 3-drive mechanism, 4-rotating shaft, 5-scraper, 6-installation frame, 7-sludge outlet, 8-sludge pipe, 9-spray hole.

Detailed ways

The following descriptions are only preferred embodiments of the present utility model, and do not therefore limit the protection scope of the present utility model.

Embodiment, as shown in Figure 1, a kind of improved papermaking wastewater treatment device, comprises coagulation tank, primary settling tank 1 and secondary settling tank, the bottom of primary settling tank 1 is equipped with scraping mud device 2, and scraping mud device 2 comprises drive Mechanism 3, rotating shaft 4 and mud scraper 5. The rotating shaft 4 is installed at the center of the bottom of the primary sedimentation tank 1. The first end of the mud scraper 5 is connected to the upper end of the rotating shaft 4. The second end of the mud scraper 5 is adjacent to the primary sedimentation tank. The inner wall of the settling tank 1, the lower end of the rotating shaft 4 is equipped with a first gear, the output end of the driving mechanism 3 is connected with a second gear, the first gear meshes with the second gear, and the center of the bottom of the primary settling tank 1 has a mud discharge port 7. There is a connection hole on one side of the mud discharge port 7, and the output end of the driving mechanism 3 passes through the connection hole. The other side of the mud discharge port 7 is fixed with a mounting frame 6, and a bearing is installed in the mounting frame 6. The lower end of the rotating shaft 4 The first end of the mud discharge pipe 8 is connected to the mud discharge port 7, and the second end of the mud discharge pipe 8 is connected to a sludge tank. The primary sedimentation tank 1 The upper part is cylindrical, the bottom of the primary settling tank 1 is conical, and the sludge tank is provided with a water delivery pipe. The bottom of the primary settling tank 1 is provided with a number of water spray holes 9, and each water spray hole 9 is connected with a water spray pipe. The first end of a water spray pipe communicates with a water spray hole 9, and the second end of each water spray pipe communicates with a water delivery pipeline.

The upper end of the sludge tank is covered with a filter screen, the sludge discharge pipe 8 communicates with the lower end of the sludge tank, and the water spray pipe communicates with the upper end of the sludge tank. The upper and lower sides of the sludge tank are isolated by the filter, so that the water above the sludge tank can be sent into the water spray pipe conveniently.

Several spray holes 9 are distributed at the bottom of the primary sedimentation tank 1 at intervals. The angle between each spray hole 9 and the bottom of the primary sedimentation tank 1 is 15-45°. The water above the sludge tank is rotated and sprayed on the bottom of the sedimentation tank through the water spray hole 9, so as to facilitate the cleaning of residual sludge.

The sludge tank is provided with a sewage outlet, and the sewage outlet is connected with a filter press. The sludge in the sludge tank is sent to the filter press for dehydration.

Drive mechanism 3 selects drive motor for use. The mud scraping device 2 is installed at the bottom of the secondary settling tank, the upper part of the secondary settling tank is cylindrical, and the bottom of the secondary settling tank is conical. The setting is simple in structure and strong in practicability.

The water spray pipe is equipped with a water spray pump, and the mud discharge pipe 8 is equipped with a mud discharge pump.

The utility model drives the rotating shaft 4 to rotate through the driving mechanism 3, and the mud scraper 5 takes the rotating shaft 4 as the center to clean the bottom of the primary settling tank 1 and the secondary settling tank, so that the sludge flows to the bottom of the primary settling tank 1 and the secondary settling tank The center gathers and sends it into the sludge tank through the sludge discharge pipe 8. The sludge pool filters the sludge through the filter, so that the sludge is below the filter and the sewage is above the filter. The water spray pump sends the sewage into the water spray pipe, and washes the bottom of the primary sedimentation tank 1 and the secondary sedimentation tank through the water spray holes 9 to reduce the deposition of sludge. The sludge in the sludge tank is sent to the filter press through the sewage outlet, and the filter press dehydrates the sludge.

The above content is only a preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. The content of this specification should not be understood as Limitations on the Invention.

Claims (8)

1. An improved papermaking sewage treatment device, comprising a coagulation tank, a primary settling tank (1) and a secondary settling tank, characterized in that: the bottom of the primary settling tank (1) is equipped with a mud scraping device (2), and the mud scraping device (2) Including drive mechanism (3), rotating shaft (4) and mud scraper (5), rotating shaft (4) is installed in the center of the bottom of primary sedimentation tank (1), the first end of mud scraper (5) and rotating shaft The upper end of (4) is connected, the second end of the mud scraper (5) is adjacent to the inner wall of the primary sedimentation tank (1), the lower end of the rotating shaft (4) is equipped with the first gear, and the output end of the driving mechanism (3) The second gear is connected, the first gear meshes with the second gear, the center of the bottom of the primary sedimentation tank (1) has a mud discharge port (7), and one side of the mud discharge port (7) has a connection hole, and the driving mechanism ( The output end of 3) goes through the connection hole, and the other side of the mud discharge port (7) is fixed with a mounting frame (6), and a bearing is installed in the mounting frame (6), and the lower end of the rotating shaft (4) is fixed on the bearing to discharge the mud. The mouth (7) is connected with a row of mud pipes (8), the first end of the mud discharge pipe (8) is connected with the mud discharge port (7), and the second end of the mud discharge pipe (8) is connected with a sludge tank, and the primary sedimentation The top of the pond (1) is cylindrical, the bottom of the primary settling pond (1) is conical, the sludge pond is provided with water delivery pipes, and the bottom of the primary settling pond (1) has some spray holes (9), each The water spray hole (9) is connected with a water spray pipe, the first end of each water spray pipe communicates with a water spray hole (9), and the second end of each water spray pipe communicates with the water delivery pipeline. 2. An improved papermaking sewage treatment device according to claim 1, characterized in that: the upper end of the sludge tank is covered with a filter, and the sludge discharge pipe (8) communicates with the lower end of the sludge tank , the water spray pipe communicates with the upper end of the sludge tank. 3. An improved papermaking wastewater treatment device according to claim 2, characterized in that: several spray holes (9) are distributed at intervals at the bottom of the primary sedimentation tank (1). 4. An improved papermaking sewage treatment device according to claim 3, characterized in that: the angle between each spray hole (9) and the bottom of the primary sedimentation tank (1) is 15- 45°. 5. An improved papermaking wastewater treatment device according to claim 4, characterized in that: said sludge tank is provided with a sewage outlet, and the sewage outlet is connected with a filter press. 6. An improved papermaking sewage treatment device according to claim 5, characterized in that: the driving mechanism (3) is a driving motor. 7. A kind of improved papermaking wastewater treatment device according to claim 6, characterized in that: the bottom of the secondary settling tank is equipped with the mud scraping device (2), the upper part of the secondary settling tank is cylindrical, and the secondary settling tank The bottom of the pool is conical. 8. An improved papermaking wastewater treatment device according to claim 7, characterized in that: the water spray pipe is equipped with a water spray pump, and the sludge discharge pipe (8) is equipped with a sludge discharge pump.