CN215352171U

CN215352171U - Improved cyclone sand settling device

Info

Publication number: CN215352171U
Application number: CN202121530182.5U
Authority: CN
Inventors: 张亚军; 颉鹏鹏; 胡东辉; 雷潇; 张玉成
Original assignee: Gansu Gerui Environmental Protection Facilities Operation Management Co ltd
Current assignee: Gansu Gerui Environmental Protection Facilities Operation Management Co ltd
Priority date: 2021-07-06
Filing date: 2021-07-06
Publication date: 2021-12-31
Anticipated expiration: 2031-07-06

Abstract

The utility model discloses an improved rotational flow sand setting device, which comprises a water inlet channel, a water outlet channel, a sand setting sorting area, a sand collecting area, a sand discharge pipe, a sand lifting pump, a motor, a transmission device, a rotary disc, an impeller and a sand washer, wherein the water inlet channel is connected with the water outlet channel; the water inlet channel is connected with the sand setting sorting area; the sand collecting area is arranged at the bottoms of the rotary table and the impeller and is respectively connected with the sand extracting pump and the sand washing device; the sand discharge pipe is connected with the sand extracting pump; the sand extracting pump is connected with the sand washer; the motor is connected with the rotating disc and the impeller through the transmission device. The utility model optimizes the hydraulic surface load and the water inlet flow state by lengthening the water inlet channel, prevents sand from overflowing and has high sand removing efficiency; the special sand extracting pump has high efficiency and high quality, accumulated sand is not easy to harden, sand interception efficiency is improved, and influence on the surrounding environment is reduced; the spiral water channel is arranged on the inner wall of the tank body, so that the strong rotation motion of water flow is accelerated, and the sand removing efficiency is higher; the floor area is reduced, the energy consumption is low, the structure is simple, the management is convenient, and the operation is reliable.

Description

Improved cyclone sand settling device

Technical Field

The utility model relates to the technical field of environmental protection, in particular to an improved rotational flow sand setting device.

Background

A certain amount of sand grains are often carried in sewage of an urban sewage treatment plant, the currently common sewage treatment technology is divided into physicochemical treatment and biological treatment, the physicochemical treatment is generally used for sewage pretreatment, and generally a grating and a grit chamber are arranged for removing the sand grains in the sewage so as to protect subsequent pipelines, valves and other facilities from abrasion and blockage. In a sewage treatment plant provided with a sludge anaerobic treatment facility, the effective volume of a digestion tank is reduced, and the normal operation of the anaerobic digestion facility is influenced.

Common grit chambers include advection grit chambers, aeration grit chambers, bell-type grit chambers, and Dol grit chambers. In recent years, with the wide application of sewage treatment processes such as A/0 process, A2/0 process, AB method, oxidation ditch process and CASS, the grit chamber is used as a part of pretreatment, and has good effect, wherein the most application is the cyclone type grit chamber.

At present, the traditional grit chamber has a plurality of types, but all have the following problems:

1. the load is low, and the produced sand mud has excessive organic matters and serious odor.

2. The water inlet channel is too short, the water inlet flow is in a turbulent flow state, the wall attachment effect of the sand remover is influenced, and the sand removing effect of the device is reduced.

3. The common pump is adopted to extract sand, the failure rate is high, the pump body is seriously abraded, the service life is short, and manpower and material resources are consumed.

4. The sand in the sand collecting area is easy to deposit, can be caked after a long time, and is not easy to be sucked out by a sand discharge pump, thereby influencing the sand discharge effect.

5. Mostly overall structure, the clearance is difficult for dismantling.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide an improved rotational flow sand setting device which has the advantages of high sand removing efficiency, small occupied area, low energy consumption, simple structure, convenient management, reliable operation and the like.

The purpose of the utility model is realized by the following technical scheme:

an improvement type whirl sand setting device includes: the sand-washing system comprises a water inlet channel, a water outlet channel, a sand setting sorting area, a sand collecting area, a sand discharge pipe, a sand lifting pump, a motor, a transmission device, a rotary table, an impeller and a sand washer;

the water inlet channel is connected with the sand setting separation area; the sand collecting area is arranged at the bottoms of the rotary disc and the impeller and is respectively connected with the sand extracting pump and the sand washing device; the sand discharge pipe is connected with the sand extracting pump; the sand extracting pump is connected with the sand washer; the motor is connected with the rotary disc and the impeller through the transmission device.

One or more embodiments of the present invention may have the following advantages over the prior art:

the water inlet channel is lengthened, the hydraulic surface load is optimized, and the sand setting efficiency is improved.

The spiral water tank is arranged, so that the strong rotation motion of water flow is accelerated, and the sand removing efficiency is higher.

The efficient and high-quality special sand extracting pump is adopted, accumulated sand is not easy to harden, sand interception efficiency is improved, and influence on the surrounding environment is reduced.

Effectively reduces the content of organic matters in the sand grains, thereby greatly reducing the odor emitted during the dehydration treatment of the sand grains and reducing the influence on the surrounding environment.

The floor area is reduced, the energy consumption is low, the structure is simple, the management is convenient, and the operation is reliable.

Drawings

FIG. 1 is a structural diagram of an improved cyclone sand setting device;

FIG. 2 is a section of an improved cyclone sand settling device.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in further detail below with reference to examples and drawings.

As shown in fig. 1 and 2, the improved cyclone sand setting device includes an inlet channel 1, an outlet channel 2, a sand setting and sorting area 3, a sand collecting area 4, a sand discharge pipe 5, a sand pump 6, a motor 7, a transmission device 8, a rotary table and impeller 9, and a sand washer 10; the water inlet channel 1 is connected with the sand setting sorting area 3;

the sand collecting area 4 is arranged at the bottom of the rotary table and the impeller 9 and is respectively connected with a sand extracting pump 6 and a sand washing device 10; the sand discharge pipe 5 is connected with the sand extracting pump 6; the sand extracting pump 6 is connected with the sand washer 10; the motor 7 is connected with the rotary disc and the impeller 9 through the transmission device 8.

The water outlet channel 2 is provided with a filtering device for intercepting unsettled sand grains. The length of the straight part of the water inlet channel 1 is more than 5 times of the width of the water outlet channel 2. The device also comprises a spiral water tank 11, and the spiral water tank 11 is arranged on the inner wall of the tank body.

The implementation process of the above embodiment:

raw water flows through the straight water inlet channel 1 and then enters the sand sedimentation separation area 3 along the tangential direction, and forms vortex flow under the action of centrifugal force generated by a rotating disc of a transmission device 8 of a motor 7 and an impeller 9, so that sand grains are separated from water. The separated sand falls into a sand collecting area 4 and is discharged from a sand discharge pipe 5 through a high-efficiency high-quality special sand extracting pump 6. The sand washing device 10 is connected to the bottom of the sand collecting area 4, and periodically stirs the accumulated sand at the bottom of the pool to prevent the accumulated sand at the bottom of the pool from hardening.

Although the embodiments of the present invention have been described above, the above descriptions are only for the convenience of understanding the present invention, and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. An improvement type whirl sand setting device which characterized in that, the device includes: the sand washing system comprises a water inlet channel (1), a water outlet channel (2), a sand setting and sorting area (3), a sand collecting area (4), a sand discharge pipe (5), a sand lifting pump (6), a motor (7), a transmission device (8), a rotary table, an impeller (9) and a sand washer (10);

the water inlet channel (1) is connected with the sand setting sorting area (3);

the sand collecting area (4) is arranged at the bottom of the rotary disc and the impeller (9) and is respectively connected with the sand extracting pump (6) and the sand washing device (10);

the sand discharge pipe (5) is connected with the sand extracting pump (6);

the sand extracting pump (6) is connected with the sand washer (10);

the motor (7) is connected with the rotary disc and the impeller (9) through the transmission device (8).

2. An improved cyclone sand setting device according to claim 1, characterized in that the outlet channel (2) is provided with a filter device for retaining unset sand particles.

3. An improved cyclone sand settling device as claimed in claim 1, wherein the length of the straight part of the inlet channel (1) is more than 5 times the width of the outlet channel (2).

4. An improved cyclone sand settling device as claimed in claim 1, further comprising a spiral water trough (11), wherein the spiral water trough (11) is arranged on the inner wall of the tank body.