CN204981286U - Novel whirl sedimentation tank thoughtlessly congeals device - Google Patents

Abstract

A new swirl type sedimentation tank coagulation device, comprising a base, a connecting shaft arranged in the center of the base, and a stirring paddle connected to the connecting shaft; the base (2) is set in a volute-shaped structure, and The water inlet pipe (1) and the water outlet pipe (3) are respectively arranged at the end, the inlet of the water inlet pipe is set in the horizontal direction, and the outlet of the water outlet pipe is set in the vertical direction, and the two form an angle of 90°; an impeller (7) is built in the base, The impeller is a semi-closed structure, with 8 blades in total, and the impeller is connected with the base up and down through the waterproof and sealed bearing (4) in the center; the shape of the stirring paddle (6) is wedge-shaped, with 4 blades Equidistance is fixed on the connecting shaft (5) in the middle. The utility model has the advantages of high mixing intensity in the reaction pool and remarkable coagulation effect.

Description

A New Coagulation Device for Cyclone Sedimentation Tank

technical field

The utility model relates to a swirl type sedimentation tank coagulation device, which belongs to the technical field of water treatment device structure.

Background technique

The cyclone reaction sedimentation tank is a water treatment structure commonly used in small and medium-sized waterworks in my country, and it is also an important structure that determines the quality of the discharged water. It is divided into two parts, one part is the reaction tank, and the other part is the sedimentation tank. The flocculant is added into the water, and after entering the sedimentation tank, the water and the flocculant are fully mixed by relying on the water flow up and down, thereby forming larger colloidal particles, absorbing impurity particles in the water, and then entering the sedimentation tank, the colloid settles to achieve purification purpose of water.

In the actual application process, the mixing strength of the water flow in the reaction sedimentation tank is limited, and it is far from enough to rely on the disturbance of the water flow itself to fully mix the raw water and the flocculant. Fine particles of alum flowers often appear near the sedimentation tank. The alum flowers appear late, and the particles are so small that they cannot fully settle in the sedimentation tank, resulting in unsatisfactory effluent from the sedimentation tank and greatly increasing the operating load of the filter.

Contents of the invention

In order to improve the current situation of insufficient mixing strength of the water flow in the reaction sedimentation tank and improve the coagulation effect, the utility model provides a device for stirring the first compartment of the reaction tank with the help of water inlet pressure.

The technical scheme of the utility model is as follows:

A new swirl type sedimentation tank coagulation device, including a base, a connecting shaft arranged in the center of the base, and a stirring paddle connected to the connecting shaft; wherein,

A. The base is set as a volute-shaped structure, and its two ends are respectively provided with a water inlet pipe and an outlet pipe. The inlet of the water inlet pipe is set in a horizontal direction, and the outlet of the water outlet pipe is set in a vertical upward direction. The two form an angle of 90°; There is an impeller built into the base, the impeller is a semi-closed structure, there are 8 blades on the impeller, and the impeller is connected with the base up and down through the waterproof sealed bearing in the center;

B. The shape of the stirring paddle is wedge-shaped. Each paddle is composed of two identical small paddles. There are 4 paddles fixed on the connecting shaft in the middle at equal intervals; the bottom end of the connecting shaft is connected to the base through a waterproof sealed bearing. The inner impeller centers are connected.

Since most of the waterworks feed water by gravity flow, the water pressure of the feed water is sufficient to drive the device of the utility model. Under the action of stirring, the water in the pool enters from the bottom and rotates up. During this process, the flocculant and water are fully mixed, which is conducive to the rapid formation of alum flowers, and the coagulant is used efficiently. It effectively saves water while ensuring good water quality. plant operating costs.

Description of drawings

Fig. 1 is a longitudinal sectional view of the utility model;

Fig. 2 is a longitudinal sectional view of another angle of the utility model;

Fig. 3 is the axonometric schematic view of the utility model;

Fig. 4 is a schematic diagram of the assembly of the stirring paddle and the connecting shaft;

Fig. 5 is a sectional view of the stirring paddle.

detailed description

See Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a new swirl type sedimentation tank coagulation device, including a base 2, a connecting shaft 5 arranged in the center of the base 2 and a connecting shaft connected to the connecting shaft 5 The stirring paddle 6; wherein,

A. The base 2 is set as a volute-shaped structure, and its two ends are respectively provided with a water inlet pipe 1 and an outlet pipe 3. The inlet of the water inlet pipe 1 is set in a horizontal direction, and the outlet of the water outlet pipe 3 is set in a vertical upward direction. 90° angle; the impeller 7 is built in the base 2, the impeller is a semi-closed structure, there are 8 blades on the impeller 7, and the impeller 7 is connected with the base 2 up and down through the waterproof sealed bearing 4 in the center;

B. The stirring paddle 6 is wedge-shaped, and each paddle is composed of two identical small paddles. There are 4 paddles fixed on the connecting shaft 5 in the middle at equal intervals; the bottom end of the connecting shaft 5 passes through a waterproof sealed bearing Connect with the center of the impeller in the base.

In this embodiment, the length of the stirring paddle 6 is 50 cmm, and the widest part is 12 cm; the diameter of the connecting shaft 5 is 7 cm, and the total length is 2.5 m. One group of paddle paddles 6 is installed every 50 cm. The main material of the base 2 is cast iron, which is fixed on the bottom of the pool with stainless steel brackets; the blades of the impeller 7, the stirring paddle 6 and the connecting shaft 5 are all made of high-strength ABS engineering plastics, which are corrosion-resistant, light in weight, and easy to drive. When installing, it must be ensured that the central axis of the water inlet pipe 1 is horizontal to the central axis of the water inlet pipe of the reaction sedimentation tank; the connecting shaft 5 must be installed vertically upward.

The utility model assembly structure and working method are as follows:

1) The water inlet pipe 1 of the base is connected to the water inlet of the reaction sedimentation tank through a flange, and the water inlet of the reaction sedimentation tank directly impacts on the semi-closed impeller 7 inside the base 2, and the impeller rotates under the impact of water, and passes through the sealing The bearing 4 transmits the torque to the connecting shaft 5 and drives the stirring paddle 6 to rotate to realize stirring. At the same time, the water flow reaches the outlet of the base and is discharged upwards along the outlet pipe 3 to avoid directly washing the pool wall, and there is a sufficient gap between the impeller 7 in the base and the base 2, and it can also be used when the waterproof sealed bearing 4 breaks down or needs to be replaced. Ensure sufficient water flow without affecting the production of the water plant.

2) Fixing of the base 2. The base is fixed on the bottom of the first reaction tank by a stainless steel bracket, and the central axis of the water inlet pipe 1 is kept horizontal to the central axis of the water inlet pipe of the reaction sedimentation tank.

3) The two ends of the connecting shaft 5 are fixed. In order to ensure the stable rotation of the connecting shaft 5 and the stirring paddle 6, the lower end of the connecting shaft 5 is fixed to a waterproof sealed bearing on the base, and the top is also connected to a sealed bearing, and the sealed bearing is fixed to the surrounding pool walls with stainless steel.

4) Fixing of the stirring paddle 6. There are 8 stirring paddles in 4 layers, and every two stirring paddles are equidistantly fixed on the connecting shaft 5 in the way of clip connection.

Claims (1)

1. A novel vortex sedimentation tank coagulation device is characterized by comprising a base (2), a connecting shaft (5) arranged in the center of the base (2) and a stirring paddle (6) connected to the connecting shaft (5); wherein,

A. the base (2) is arranged into a volute structure, a water inlet pipe (1) and a water outlet pipe (3) are respectively arranged at two ends of the base, the inlet of the water inlet pipe (1) is arranged in the horizontal direction, the outlet of the water outlet pipe (3) is arranged vertically upwards, and the inlet and the outlet form an angle of 90 degrees; an impeller (7) is arranged in the base (2), the impeller is of a semi-closed structure, 8 blades are arranged on the impeller (7), and the impeller (7) is connected with the base (2) up and down through a waterproof sealing bearing (4) arranged in the center;

B. the stirring paddles (6) are wedge-shaped, each paddle consists of two same small paddles, and 4 paddles are arranged in total and fixed on the middle connecting shaft (5) at equal intervals; the bottom end of the connecting shaft (5) is connected with the center of the impeller in the base through a waterproof sealing bearing.