CN101817566B - Rocker string bag type grating slag removing machine in waste water treatment - Google Patents

Abstract

The invention relates to a rocker net bag type grid slag cleaner in sewage treatment. The slag removal net device includes three parts: parallel steel guide rails, a ground suspension rod and a steel net bag. According to the requirements of slag removal, the steel net bag is made of metal grid bars and frames with a certain distance, placed on parallel steel guide rails, and the sewage passes through the steel mesh bag to achieve the purpose of intercepting, filtering and removing slag. The steel net bag is lifted to the ground by the ground boom to regularly clean the dirt trapped in the net bag. This slag removal net bag device can realize the function of removing coarse dirt at the front end of small and medium-scale sewage treatment plants, and replaces the thick and thin grids installed in general sewage treatment plants. Strong, and no energy consumption and equipment maintenance costs.

Description

Rocker net bag type grill slag cleaner in sewage treatment

technical field

The invention belongs to the technical field of sewage treatment, and in particular relates to a simple sewage slag removal device.

Background technique

The slag removal equipment is generally used on the water inlet channel of sewage treatment or at the entrance of the sump of the lifting pump station. Protect water pumps, pipelines, instruments, etc.

At present, the main slag removal method at home and abroad adopts grille. According to the size of the grid bar spacing, the grid is divided into three types: coarse grid, medium grid and fine grid. According to the slag removal method of the grid, there are two kinds of artificial grid and mechanical grid. There are three types of mechanical slag cleaning equipment commonly used, namely chain type, mobile type and wire rope traction type grille cleaning machine. When the intercepted screening slag is greater than 0.2m ³ /d, mechanical slag removal is generally used; when the screening slag is less than 0.2m ³ /d, manual or mechanical slag removal can be used. Practice has proved that whether the selection of the grid is appropriate will directly affect the operation of the entire water treatment facility. Artificial grilles are generally used in small sewage treatment stations, with simple structure and high labor intensity. Mechanical grilles are generally used in large and medium-sized sewage treatment plants. This type of grille has a complex structure, a high degree of automation, and high equipment operation and maintenance costs.

Combining the operating conditions of small and medium-scale sewage treatment plants and the characteristics of the above slag removal methods, it can be seen that the existing mechanical slag removal device is not economical enough, and the manual device is not easy to operate. Aiming at the characteristics of sewage treatment in small towns, it is extremely easy to develop a simpler slag removal device meaningful.

Contents of the invention

Aiming at the problems existing in the above existing slag removal equipment and the impracticality for small and medium scale sewage treatment plants, the present invention proposes a simple rocker arm net bag type grid slag cleaner to realize the large suspension or floating in the sewage The removal of debris, the device is simple to manufacture, low in cost, easy to operate for slag removal, and has no energy consumption and equipment maintenance costs.

The present invention proposes a simple rocker net bag type grill slag cleaner, the structure is as follows:

The slag cleaning machine is composed of three parts: parallel steel rails, ground suspension rod device and steel net bag.

The parallel steel rails are preset in the water collection well or the adjustment pool by two steel rails according to the size of the steel mesh bag;

The ground suspension rod device is composed of a suspension rod, a suspension rope and a pulley, and is fixed on the operating platform for hoisting the net bag. The sling is supported by a boom, one end hooks the net bag, and the other end is connected with the rocker arm.

The steel mesh bag is a rectangular frame bag composed of metal grid bars and a frame according to the requirements of slag removal. It is placed on parallel steel rails, can slide along the rails, and is hooked by the ground suspension rod device above. Two steel net pockets are arranged on the track to realize alternate work. And it is necessary to ensure that the position of the net pocket is lower than the bottom elevation of the water inlet pipe of the pretreatment pool, and the net pocket in working condition is placed just below the water inlet pipe to intercept the floating objects entering the pool.

The simple sewage slag removal net bag device related to the invention is suitable for removing relatively large suspended and floating objects in the front-end water of medium and small-scale sewage treatment plants. The device mainly uses the interception and filtration of the passing sewage by the steel net bag, so as to realize the function of slag removal, reduce the treatment load of the subsequent water treatment process, and ensure the normal operation of the subsequent treatment structures or equipment. The device has strong slag cleaning ability, simple operation, simple device manufacture, low cost, and no energy consumption and equipment maintenance costs. In addition to being used for slag removal at the front end of sewage treatment plants, the device can also be used at the front end of other drainage pump stations containing suspended or floating matter.

Description of drawings

Fig. 1 is the structural representation of net pocket type grid slag cleaner;

Fig. 2 is the structural representation of net pocket and guide rail;

Fig. 3 is the working plane view of guide rail;

Fig. 4 is a sectional view of the net bag.

In the picture: 1-Water inlet pipe 2-Net bag 3-Guide rail 4-Ground suspension rod device 5-Metal frame 6-Metal grid bar 7-Rock arm 8-Pretreatment pool

Specific implementation method

The structure of the present invention is described in detail below in conjunction with accompanying drawing:

(1) Referring to Figure 1 and Figure 3, when carrying out earthwork construction in the pretreatment pool 8, the two ends of the parallel steel guide rails 3 are pre-embedded in the pool wall, and the parallel spacing is determined according to the size of the steel mesh bag 2, and the buried elevation of the guide rails 3 should be It is higher than the liquid level elevation of the pretreatment pool + the height of the net bag, and lower than the bottom elevation of the water inlet pipe 1, so as to ensure that the incoming water enters the pretreatment pool after being intercepted by the net bag.

(2) Referring to Fig. 2 and Fig. 4, the steel mesh bag 2 is made of a metal grid bar 5 and a metal frame 6, and its size and grid bar spacing are determined according to the maximum influent flow rate, the type of suspended solids contained and the cleaning cycle. The production is welded with steel materials, hung on the parallel steel guide rail 3 through the hanging lug, and designed according to the principle of one use and one preparation.

(3) The ground suspension rod device 4 is fixed on the operating platform, and consists of a suspension rod, a suspension rope and a pulley. The net bag is lifted to realize the cleaning of the dirt in the net bag.

(4) The cleaning cycle of the net bag is determined according to the type and content of the influent sewage.

Claims (2)

1. The rocker net bag type grid slag cleaning machine in sewage treatment is characterized in that: the slag cleaning machine is composed of three parts: parallel guide rails, ground boom device and net bag; The net bag is made of grid bars and frames according to the requirements of slag removal, placed on parallel guide rails, and at least two are arranged, the position of the net bag is lower than the elevation of the water inlet pipe bottom of the pretreatment tank, and the net bag in working state It should be placed directly under the water inlet pipe; The two ends of the parallel guide rails are respectively fixed in the wall of the pretreatment pool, and the distance between the two guide rails matches the size of the net bag; The ground suspension rod device is fixed on the operating platform, and it is made up of suspension rod, suspension rope and rocking arm, and suspension rope is supported by suspension rod, and one end hooks hanging net bag, and the other end is connected with rocking arm. 2. The rocker net bag type grill slag cleaner according to claim 1, characterized in that: both the parallel guide rails and the net bag are made of steel materials.

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