CN201216895Y - Filter for canal - Google Patents

Abstract

The utility model discloses a filter device for a canal, comprising two sheets of filter nets which are connected with each other through a lever piece and can be arranged alternately in the canal in sequence; two position adjusting devices are respectively connected with two filter nets through a lever piece. The filter device can have the effects of intercepting and removing the floating objects (such as leaves, paper boxes, plastic bags and sundries) in various canal water distribution systems and can effectively improve the water quality of the water distribution systems. The automatic non-power switching of the filter nets is realized according to the water power principle and the sewage interception capacity; the man power and electric operations are avoided. The filter device is applicable to industrial mass manufacturing and production.

Description

ditch filter

technical field

The utility model relates to a sewage filtering device.

Background technique

In metallurgy, chemical industry and other industrial and mining enterprises and in the fields of water supply and drainage in urban and rural areas, open channels for water supply and drainage are involved. During the process, it is easy to have all kinds of floating objects fall into the water channel and pollute the water quality. In order to overcome this shortcoming, in actual use, filter screens are often arranged in the ditch to intercept drifts in the ditch (leaves, cartons, plastic paper bags, etc.). These filter screens for intercepting drifts are often very simple, and generally a Simple square net, set door frame, hang electric and manual hoists, and regularly clean manually. Although there are various filters and mechanical grilles both at home and abroad, the special and unpowered filter screens that are suitable for ditch intercepting drifts in the current have never been reported. . This patented product is suitable for ditches to intercept solid drifts. It has the characteristics of low production cost, high interception efficiency, no power, easy operation, and convenient maintenance.

Through literature and data query, the general ditches to intercept garbage are divided into two categories, one is extremely simple filter screen (Fig. 1), wherein 4 is a ditch, adopts a single channel filter screen 3, and sets a portal frame 2. An electric or manual hoist 1 is set on the gantry 2 to operate at a fixed time, at a fixed time, and at a fixed point. The exact point is obvious, and the filtering process is unreliable. During the garbage cleaning period, the garbage will pass through, and when there is a lot of garbage, the filter will pass through, and the labor intensity is high. , the operation and maintenance workload is large, and power is required for electric hoists; another type of filter is mechanical grille: mechanical grille is a mechanical device, the main structure is composed of a group of parallel bars (like anti-theft windows) Composition, there is a rake between the grid bars, relying on the reciprocating mechanical movement of the rake from bottom to top to remove the garbage intercepted by the rake. The shortcomings of the mechanical grid are also obvious. Since the grid bars cannot be made very small, they can only be removed. Big garbage, small garbage such as leaves and plastic paper bags cannot be removed, and the cost is high, the operation and maintenance workload is heavy, and the operating cost is high.

Contents of the invention

The purpose of this utility model is to provide a filter device for ditches. According to the principle of hydraulics, the filter can be automatically switched without power according to the amount of dirt interception, without manpower and electric operation, and can intercept various ditches water transmission and distribution systems. 1. The role of removing drifting objects (leaves, cartons, plastic paper bags, etc.) in ditches can effectively improve the water quality of the water transmission and distribution system.

The purpose of this utility model is achieved in this way: a filter device for ditches, including two pieces of filter screen, the two are connected by a lever, and can be alternately placed in the ditch back and forth; The filter screen is connected by a lever.

Preferably, the lever members are all fixed pulley blocks.

Preferably, it also includes a frame, the fixed pulley in the fixed pulley block is installed on the top of the frame, two filter screens are hung below the fixed pulley through a rope, a water collection pipe is installed on the top of the filter screen, and several holes are opened on the wall of the water collection pipe , the water collecting pipe communicates with the position adjustment device.

Preferably, the position adjustment device includes a water eliminator, a cock is installed at the bottom thereof, and the water eliminator is connected to the filter net by passing around two fixed pulleys in the fixed pulley block through a rope; the water eliminator and the water collecting pipe are connected through a hose connected.

Preferably, the bottom of the filter is L-shaped.

Preferably, a small fixed pulley is installed on both sides of the fixed pulley.

Due to the adoption of the above technical scheme, the utility model has the following advantages and positive effects compared with the prior art: the utility model adopts the special non-powered filter device for the ditch, which can realize the effective removal of solid drifts in the ditch water transmission and distribution system, and improve the efficiency of water delivery and distribution. The water quality of the water distribution system greatly reduces the load on the sewer water treatment process.

No need for manpower and electric power operation, less maintenance workload, and reduced filtration costs.

The device has a simple structure, can be used as a stereotyped product, and can be manufactured and produced in large quantities in an industrialized manner.

Description of drawings

Fig. 1 is the schematic diagram of filter device of prior art;

Fig. 2 is the overall schematic diagram of the filter device of the present invention;

Fig. 3 is a partial left view of the filter screen of Fig. 2;

FIG. 4 is a top view of FIG. 2 .

Detailed ways

As shown in Figures 2 and 3, this embodiment includes a structural frame 2 placed in the ditch. Certain pulley 1 is installed on frame 2 tops, and fixed pulley 1 both sides respectively is equipped with a small fixed pulley 10, is used for supporting rope.

It also includes a double-channel filter screen 3 placed on both sides of the frame 2. A water collection pipe 4 is installed on the upper part of the filter screen 3, and there are several holes on the wall of the water collection pipe 4. When the water level rises to the position of the water collection pipe 4, the water flow can slowly flow in from the hole; the filter screen 3 is connected to each other by passing around the fixed pulley 1 , Through the change of its own gravity, it can realize alternate lifting and intercept various drifting objects. As shown in Figure 4, the bottom of filter screen 3 is made into L shape (not shown in the figure), is used for collecting the rubbish that falls.

As shown in Figures 2 and 3, it also includes two position adjustment devices. The position adjustment device includes a water receiver 6, and a cock 7 is installed at the bottom of the water receiver 6. The water in the water receiver 6 can flow out slowly through the cock 7. By adjusting the opening degree of the cock 7, the time when the water eliminator 6 is filled with water is controlled to realize time control. The water eliminator 6 is accommodated in a working well 8 . The water collector 6 is connected to the filter screen 3 by bypassing two fixed pulleys 9 through ropes; As more garbage is intercepted during the filtration process, the water level will rise (the arrow shows the direction of water flow). When the water level was raised to the water collection position of the water collection pipe 4, the water collection pipe 4 began to collect water and introduced water into the water collector 6 in the working well 8 through the connecting hose 5.

The workflow of this embodiment is as follows:

(1) Determine the size of the structural frame according to the size of the ditch and the height of the water level at the implementation site. The frame can be a steel structure or a concrete structure. Double-channel filters are used to work alternately to prevent various drifts from passing through the filter.

(2) When the filter starts to work, there is no garbage on the filter, and the water level on the filter is the same as the water level in the ditch. As the filter time goes by, the garbage on the filter gradually increases, the resistance begins to increase, and the water level rises. When the water level rises to the water collecting pipe, the water collecting pipe starts to take in water and flows to the water eliminator through the connecting hose.

(3) After the water eliminator is filled with water, part of the water is drained through the water discharge cock, and the water level of the eliminator rises slowly.

(4) The water level of the filter screen continues to rise, the water collection pipe begins to enter a large amount of water, and the water level of the water collector begins to rise gradually. When it rises to a certain level and its weight is enough to lift the filter screen, the filter screen rises, and the other fast filter screen relies on Its own weight drops, and it reaches the working position to start working.

(5) Adjust the opening of the water discharge cock on the water eliminator to control the time when the water eliminator is full of water.

(6) After the filter screen rises, the water collection pipe stops collecting water, and the water in the water collection device flows out through the cock, which is used for the next cycle.

(7) Garbage intercepted on the filter network will be manually cleared by patrol personnel at regular intervals.

It should be noted that what is listed above is only a specific embodiment of the utility model, and obviously the utility model is not limited to the above embodiments, and there are many similar changes thereupon. If those skilled in the art directly derive or associate all deformations from the content disclosed in the utility model, they shall all belong to the protection scope of the utility model.

Claims (6)

1. A filtering device for a ditch, characterized in that: it comprises two filter screens (3), the two are connected by a lever, and can be alternately placed in the ditch back and forth; two position adjustment devices are connected to the two filter screens respectively The net (3) is connected by a lever. 2. The filtering device for ditches according to claim 1, characterized in that: said lever members are all fixed pulley blocks. 3. The filter device for ditch as claimed in claim 2, characterized in that: it also includes a frame (2), the fixed pulley (1) in the fixed pulley block is installed on the top of the frame (2), and the two filter screens (3) Hang below the fixed pulley (1) by a rope, and a water collection pipe (4) is equipped with on the filter screen (3) top, has some holes on the wall of the water collection pipe (4), and the water collection pipe communicates with the position adjustment device. 4. The filter device for ditches as claimed in claim 3, characterized in that: said position adjustment device comprises a water eliminator (6), a cock (7) is installed at the bottom thereof, and the water eliminator (6) passes through a rope The two fixed pulleys (9) in the fixed pulley block are bypassed and connected to the filter screen (3); the water eliminator (6) is communicated with the water collecting pipe (4) through a flexible pipe (5). 5. The filter device for ditches according to claim 4, characterized in that: the bottom of the filter screen (3) is L-shaped. 6. The filter device for ditches according to claim 5, characterized in that: a small fixed pulley (10) is installed on both sides of the fixed pulley (1).

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