KR200204255Y1 - Door structure of sludge storage tank - Google Patents

Abstract

The present invention is to provide a door structure of the sludge storage tank that can completely seal the interior of the sludge storage tank to prevent the sludge remaining between the packing of both doors when the door for opening and closing the sludge storage tank is closed. In the door of the sludge storage tank for sewage treatment plants having the doors 10 on both sides, which are opened and closed by the operation of the cylinder, and the packings 22 which are in contact with each other under the bottom plates 12 and 14 on both sides are attached. The bottom plate 12 is formed with an extension 12a while the inner end is extended, and the auxiliary plate 14a is attached to the other bottom plate 14 so that sludge around the packing is cut when the door is closed.

Description

Door structure of sludge storage tank {DOOR STRUCTURE OF SLUDGE STORAGE TANK}

The present invention relates to a sludge storage tank, and more specifically, a sludge storage tank for a sewage treatment plant that stores sludge containing moisture generated in a sewage treatment plant and opens and closes the door below when moved by a truck. It relates to a door structure.

Typically, the sludge storage tank used in the sewage treatment plant is to store the sludge generated in the sewage treatment plant, and when the sludge is almost filled in the storage tank is moved to the place where the sludge can be treated by the truck.

Above, look at the structure of the sludge storage tank as follows.

As shown in FIG. 1, a concrete frame 40 having an inlet 42 is formed at an upper portion from the ground, and the inlet has a structure in which a frame 44 is installed and a storage tank 1 is mounted below the frame. have. In this case, the door operated by the cylinders on both sides of the storage tank is rotated about the upper rotary shaft to open and close the bottom surface of the storage tank, and the sludge is dropped by the loading of the truck located at the bottom.

In the door device having such a structure, a packing for sealing the bottom surface is attached along the inner side surfaces of both bottom plate, and when the door is closed, the inside sludge is sealed so as not to escape. However, the conventional door has a structural problem that does not completely seal the inside of the storage tank. That is, when the doors on both sides are opened and the sludge inside is dropped and the door is returned to its original position and closed, the sludge that is not dropped and the remaining sludge is sandwiched between the packings on both sides. As such, the door is not completely closed due to the sludge sandwiched between the packings on both sides, and a gap is formed between the packings. Therefore, the sludge smaller than the gap comes out down and falls into the drip tray, so that the drain pipe of the drip tray is blocked or falls out to pollute the surroundings.

Accordingly, an object of the present invention is to provide a door structure of a sludge storage tank that can completely seal the inside by preventing the sludge remaining between the packings of both doors when the door for opening and closing the sludge storage tank is closed.

In order to achieve the above object, the present invention opens and closes the operation of a cylinder at a lower portion of the storage tank, and the doors 10 on both sides with packings 22 contacting each other under the bottom plates 12 and 14 on both sides. In the door of the sludge storage tank for sewage treatment plant, an extension end 12a is formed on one side bottom plate 12 while an inner end thereof is extended, and an auxiliary plate 14a is attached to the other bottom plate 14. When the close is characterized in that the sludge around the packing is configured to be cut.

1 is a front view of the sludge storage tank according to the prior art.

Figure 2 is a side view of the sludge storage tank according to the prior art.

3 is a cross-sectional view of the main portion of the door in the sludge storage tank according to an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: storage tank 10: door

12, 14: bottom plate 12a: extension part

14a: subsidiary plate 18: rotating shaft

20: fixed plate 22: packing

30: drip 32: drain pipe

44: frame 46: hydraulic device

48: cylinder

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in describing the present invention, if a detailed description of a related known function or configuration may obscure the subject matter of the present invention, the detailed description thereof will be omitted.

1 and 2 is a front view and a side view showing the structure of the storage tank for sewage treatment plant, the storage tank is typically a concrete frame 40 is formed in the upper portion with a space above the ground. And the frame has an inlet 42, the frame 44 is installed in the inlet and the storage tank 1 is mounted to the lower portion of the frame. In addition, the hydraulic device 46 and the control box 34 are provided at appropriate positions, and the van can be positioned below the storage tank.

Figure 3 shows a cross-sectional view of the extraction state of the door attached to the storage tank 1 according to the door structure of the sludge storage tank of the present invention.

According to the drawing, the door 10 is assembled to the rotating shaft 18 on both sides fixed inside the storage tank 1, and rotates to both sides. The door has a front and rear side frame 16 and a bottom bottom frame ( 12 and 14). A fixing plate 20 protruding downward is fixed to the inner ends of the bottom frames 12 and 14 by welding, and packings 22 are assembled to the inner surfaces of the fixing plates 20 by bolts 24, respectively. . At this time, the bottom plate 12 on one side has an extension portion 12a extending to approach the bottom plate 14 on the other side, and the auxiliary plate 14a is attached to the bottom plate 14 on the other side by an upper surface. The auxiliary plate 14a overlaps the upper surface of the extension part 12a. At this time, it is preferable that the contact portion of the extension part 12a and the auxiliary plate 14a is strongly adhered to be cut when the sludge is caught inward and the edge of the contact part is sharp.

In addition, a bracket 16a is attached to a lower outer side of the both side doors 10, and a general cylinder 48 operated by an external hydraulic device 46 and a control box 34 is mounted therein, and a storage tank is provided. Under (1) the drip tray 30 is located under the door 10. The drip tray 30 receives the sewage flowing out of the storage tank and the drain pipe 32 is connected to the conventional sewage treatment facility.

It will be described the operation state of the door structure of the present invention sludge storage tank.

First, in the state in which the sludge is stored into the storage tank, that is, the doors on both sides are closed, the bottom plates 12 and 14 of both doors 10 are engaged with each other, and at this time, the extension part 12a of the one bottom plate 12 is The auxiliary plate 14a of the bottom plate 14 of the other side is overlapped with each other, and the packing 22 on both sides is in contact with each other to seal the inside of the storage tank. Thereafter, the sludge collected at the sewage treatment plant is loaded through the inlet 42 of the storage tank 1 after the dewatering process is completed. At this time, the drip tray 30 is located under the door 10, and the sewage flowing out of the storage tank 1 is moved to a separate sewage treatment apparatus through a drain pipe 32.

Then, in order to move the sludge in the storage tank (1), first remove the drip tray (30) under the door, and then place the loading box of the truck under the door 10, and the control box 34 When the cylinder 48 is operated in accordance with the operation in) to open both doors, the sludge inside falls and is loaded into the van.

Then, when the door is closed according to the return of the cylinder 48, the sludge remaining on the bottom plates 12 and 14 and the extension portion 12a of the bottom plates 12 and 14 before the packing on both sides is in close contact with each other. The auxiliary plate 14a is cut in the process of overlapping and falls down, and both packing parts 22 are closed in close contact without sludge.

As described above, the present invention is to cut the sludge remaining in the door portion by the extension portion and the auxiliary plate in the process of closing the doors on both sides, and to close the door so that the packing on both sides, the sludge in the storage tank Will not come out. Therefore, there is no problem that the sludge falls into the lower drip tray so that the volleyball pipe is not blocked and does not pollute the storage tank.

Claims (1)

Sludge for sewage treatment plant having openings on both sides of the storage tank 1, which are opened and closed by the operation of the cylinder 48, and the packings 22 are attached to each other under the bottom plates 12 and 14 on both sides. A door of the storage tank; The one side bottom plate 12 is formed with an extension 12a while the inner end is extended, and the other bottom plate 14 is attached to the auxiliary plate 14a so that sludge around the packing is cut when the door 10 is closed. Door structure of the sludge storage tank, characterized in that the.