CN202046980U - Municipal thorough cut sludge elutriating and separating unit - Google Patents

Abstract

The utility model relates to a municipal thorough cut sludge elutriating and separating unit which comprises a sludge tank, a sludge fender, a stationary grizzly, a stirring paddle, a submerged chain conveyor, a settled sand conveyor, a water inlet pipe, a water inlet nozzle, and an overflow opening. In the utility model, municipal thorough cut sludge is arranged in the sludge tank, and the combined action of mechanical force and hydraulic power generated by the stirring paddle and the water inlet nozzle is utilized to complete the elutriation of the thorough cut sludge and the separation of all the components, thus realizing reduction, stabilization and harmless treatment of the thorough cut sludge.

Description

A municipal sewage sludge elutriation and separation device

technical field

The utility model relates to an elutriation and separation device for municipal ditch sludge.

Background technique

Ditch sludge is the sludge that is removed during the regular maintenance of the pipeline system. It is mainly composed of sand, gravel, and a small amount of organic matter. Since a large amount of domestic garbage and pathogenic microorganisms have accumulated in it, if not properly disposed of, it will not only cause secondary pollution of the environment, but also pose a great threat to human health.

At present, the main methods of trench sludge treatment at home and abroad include landfill, natural air drying, heating and drying, mechanical dehydration, and methods such as being used as raw materials for concrete and mortar production. However, there are many disadvantages in the above disposal methods: the water content of trench sludge is high, the efficiency of landfill and natural air drying is low, it will occupy a large amount of land, and produce secondary pollution such as sewage and odor; heating and drying will consume a lot of energy; my country The components of channel sludge are complex, and domestic waste and construction waste are mixed together, so it is not suitable for mechanical dehydration and direct reuse. Therefore, it is imperative to develop a channel sludge treatment method suitable for the characteristics of our country's channel sludge and the national conditions. The purpose of the utility model is to provide a municipal ditch sludge elutriation and separation device.

Contents of the invention

The utility model is an elutriation and separation device for ditch sludge, which aims to elutriate and separate components in the ditch sludge, and separate the ditch sludge into Heavy grit, light scum, and rancid organic matter are discharged into the municipal sewage pipe network along with the washing sewage.

The specific technical scheme of the utility model is: a municipal ditch sludge elutriation and separation device, which consists of a sludge tank, a fender, a fixed grid, a stirring paddle, a slag removal machine, a sand conveyor, a water inlet pipe, and a nozzle. and an overflow port; the fender is arranged around the inlet of the sludge receiving tank, the fixed grid is arranged above the inlet of the sludge tank, and the stirring paddle is arranged at the front end of the sludge tank , the slag removal machine is arranged on the upper part of the middle and rear section of the sludge tank, the grit settling conveyor is arranged on the bottom of the middle and rear section of the sludge tank, and the water inlet pipe and nozzle are arranged at the front end of the sludge tank, The overflow port is arranged at the rear end of the sludge tank.

The working principle of the utility model is: the ditch sludge is discharged from the feed port into the sludge tank, the mudguard around the feed port prevents the sludge from splashing out, and the fixed grid above the feed port intercepts coarse garbage. The stirring paddle at the front end of the sludge tank, the water inlet pipe and the nozzle generate hydraulic and mechanical force to push the sludge to move to the rear of the tank, and at the same time, the water flow rubs the sludge to promote the separation of various components of the sludge: light scum floats on the sludge On the water surface of the tank, the heavy grit sinks to the bottom of the sludge tank, and the decayed organic matter dissolves in the sewage. Further, the scum machine removes the scum produced during the sludge elutriation and separation process, the grit-setting conveyor sends the grit at the bottom of the sludge tank, and the sewage enters the sewage pipe network from the overflow port.

Description of drawings

Fig. 1 is a schematic structural view of a municipal gutter sludge elutriation and separation device of the present invention.

In the figure: 1-sludge tank, 2-fender, 3-fixed grille, 4-stirring paddle, 5-slagging machine, 6-grit conveyor, 7-inlet pipe, 8-nozzle, 9- Overflow.

Detailed ways

As shown in Figure 1, the structure schematic diagram of the municipal gutter sludge elutriation and separation device of the present utility model is composed of a sludge tank 1, a fender 2, a fixed grid 3, a stirring paddle 4, a slag removal machine 5, a sand settling Conveyor 6, water inlet pipe 7 and nozzle 8, overflow port 9 constitute. The sludge tank is a steel pyramidal tank body; mudguards are set around the inlet of the sludge tank to prevent the sludge from splashing when unloading; fixed grilles are set above the inlet of the sludge tank to intercept the sludge Coarse garbage in the sludge tank; the stirring paddle is located at the front end of the sludge tank, and the impeller blade is used. The water flow generated by it pushes the sludge to move to the rear of the tank body, and rubs the sludge at the same time to realize the elutriation and separation of the sludge, and the light scum Floating on the water surface of the sludge tank, heavy grit sinks into the bottom of the sludge tank; the slag removal machine is located in the upper part of the middle and rear section of the sludge tank, in the form of a rotary mechanical grille, and the sludge is washed through continuous slag removal The scum produced during the separation process is fished out; the grit sedimentation conveyor is located at the bottom of the middle and rear section of the sludge tank, in the form of a screw conveyor, and sends out the grit at the bottom of the sludge tank; the water inlet pipe and nozzle are located at the front end of the sludge tank , and continuously spray high-pressure water to wash the sludge; the overflow port is located at the rear end of the sludge tank, and the sewage overflows into the sewage pipe network.

The sludge tank, fender, fixed grid, stirring paddle, slag extractor, sand settling conveyor, water inlet pipe, nozzle, and overflow port described in the above-mentioned utility model are composed of existing parts, and these parts belong to Known technologies, those skilled in the art understand the above-mentioned parts, and details are not repeated here.

The working principle of the utility model is: the ditch sludge is discharged from the feed port into the sludge tank, the mudguard around the feed port prevents the sludge from splashing out, and the fixed grid above the feed port intercepts coarse garbage. The stirring paddle at the front end of the sludge tank, the water inlet pipe and the nozzle generate hydraulic and mechanical force to push the sludge to move to the rear of the tank, and at the same time, the water flow rubs the sludge to promote the separation of various components of the sludge: light scum floats on the sludge On the water surface of the tank, the heavy grit sinks to the bottom of the sludge tank, and the decayed organic matter dissolves in the sewage. Further, the scum machine removes the scum produced during the sludge elutriation and separation process, the grit-setting conveyor sends the grit at the bottom of the sludge tank, and the sewage enters the sewage pipe network from the overflow port.

The working process of the present utility model is:

1. Before the sludge is unloaded, first inject cleaning water into the sludge tank 1, enter it from the water inlet pipe 7, and spray it into the sludge tank 1 through the nozzle 8. When the liquid level reaches the height of the overflow port 9, it can be unloaded material.

2. The trench sludge is discharged from the feed port into the sludge tank 1. The mudguard 2 around the feed port prevents the sludge from splashing out. The fixed grille 3 above the feed port intercepts coarse garbage. After flushing, it is cleared, and the undergate enters the sludge tank 1.

3. The stirring paddle 4 at the front end of the sludge tank 1 is constantly rotating, and the nozzle 8 is continuously spraying high-pressure cleaning water. The hydraulic and mechanical forces generated by the two together push the sludge to move to the rear of the sludge tank 1. At the same time, the water flow rubs the sludge to promote The components of the sludge are separated, the light scum with a small specific gravity floats on the water surface of the sludge tank, the heavy sand with a large specific gravity sinks to the bottom of the sludge tank, and the decayed organic matter dissolves in the washing water.

4. Slag removal machine 5 removes the scum produced during the sludge elutriation and separation process.

5. Grit conveyor 6 sends out the grit at the bottom of sludge tank 1. the

6. The sewage enters the sewage pipe network from the overflow port 9.

To sum up, municipal trench sludge enters the sludge tank through a fixed grid, and is finally divided into heavy grit, light scum, and Sewage, heavy grit sinks at the bottom of the sludge tank and is lifted by the grit conveyor to above the water surface for discharge, light scum floats on the water surface and is picked up by the slag machine for discharge, and the organic matter is discharged from the overflow port with the elutriation water to the sewer network. In order to realize the reduction, stabilization and harmlessness of trench sludge.

Claims (5)

1. a municipal ditch mud is eluriated tripping device, it is characterized in that: be made of sludge sump, splash pan, stationary grizzly, stirring rake, dragveyer, sand setting transfer roller, water inlet pipe, nozzle and overflow port; Described splash pan is arranged on around the feeding mouth of mud Receiving bin, described stationary grizzly is arranged on the feeding mouth top of sludge sump, described stirring rake is arranged on the sludge sump front end, described dragveyer is arranged on the top of sludge sump posterior segment, described sand setting transfer roller is arranged on the bottom of sludge sump posterior segment, described water inlet pipe and nozzle are arranged on the sludge sump front end, and described overflow port is arranged on the sludge sump rear end.

2. municipal ditch mud according to claim 1 is eluriated tripping device, and it is characterized in that: described sludge sump is a steel pyramid cell body.

3. municipal ditch mud according to claim 1 is eluriated tripping device, and it is characterized in that: described stirring rake, its blade is an impeller-type.

4. municipal ditch mud according to claim 1 is eluriated tripping device, and it is characterized in that: described dragveyer is the rotary machine grid.

5. municipal ditch mud according to claim 1 is eluriated tripping device, and it is characterized in that: described sand setting transfer roller is a screw conveyer.

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