JPH0217680Y2 - - Google Patents

Description

[Detailed description of the invention] The purpose of this invention is to mechanically carry out all the cake even near the tank wall when carrying out the dried cake from the sun-dried sludge bed. Conventionally, there is a device that mechanically transports the sludge cake from the solar drying bed, but in actual work, the sludge is scraped up by rotating the edge. Naturally, the area corresponding to this area is left unscraped, and the current situation is that this area is removed manually. However, if the width of the leftover soil near the tank wall is, for example, 1m wide and exists on the periphery of the tank, the labor and expense of removing it will increase.
The meaning of installing mechanical equipment has become less important and has become a problem.

Regarding this, we previously proposed in 1976 Utility Model Registration Application No. 176223 to eliminate the blind area of the sludge scraping conveyor, but we also proposed a more rational and reliable way to remove the sludge cake near the tank wall. Here we propose a device that makes this possible.

Next, this invention will be explained in detail with reference to the drawings.

1 and 2, each rail 4 provided on the upper surface of the tank walls 2 and 3 facing each other of the solar floor tank 1
5 has wheels 6, 7 rolling on these rails 4, 5.
(There are two pairs of wheels at the front and rear, but only one pair is shown in the figure.)
A carriage 9 is further placed on the movable girder 8 so as to be movable in a direction substantially orthogonal to the moving direction of the movable girder 8. A circular hole 10 is bored in the center of the truck 9, and a bearing 1 is arranged around the entire circumference of the circular hole 10, and a bearing 1 is placed on the bearing 11 at a position corresponding to the circular hole 10. A revolving pedestal 13 having a center hole 12 is mounted, and a scraping conveyor 15 is installed which extends vertically through the center hole 12 of this swivel mount 13 and the circular hole 10 and moves up and down along a guide frame 14. do.

The illustrated sludge scraping conveyor 15 has an eave-like curved part 16 at the top of the back side, and a large number of scraping plates 18 are arranged at regular intervals between a pair of endless chains 17 (see FIG. 3) that rotate in the vertical direction. The endless chain 17 consists of ear plates 19 on both sides, a front plate 20 and a rear plate (not shown in the figure), including the sprocket wheels that drive them. A scraping opening 21 is provided at the top of the rear plate, and a cake drop window 22 (FIG. 1) is provided at the top of the rear plate.

A main conveyor 23 for carrying the scraped cake out of the tank 1 is installed in the longitudinal direction on the movable girder 8, and a sub-conveyor 24 is installed perpendicularly to the main conveyor 23.
This sub-conveyor 24 is a conveyor for transferring the cake from the drop window 22, which comes off from directly above the main conveyor 23, onto the main conveyor 23 when the scraping conveyor 15 turns in the traveling direction of the cart 9. . It should be noted that the turning frame 13 is equipped with a turning drive motor 25, and the scraping conveyor 15 is equipped with a lifting device (a rack and pinion is used in the illustrated example).
26, the truck 9, and the movable girder 8 are each provided with a drive device (not shown).

By configuring as described above, the scraping conveyor 15 has a movable girder 8 that moves back and forth, a cart 9 that moves left and right on the girder 8, and a cart 9 that can turn the scraping port 21 in a right angle direction. Therefore, the area of the blind area of the rotary scraping operation of the scraping conveyor 15 can be reduced by scraping this part from the right angle.

However, there is an overhang at the upper end of the tank wall, and it is difficult to work with a large machine too close to the tank wall.
There is a cm-wide unscraped area, and it is desirable that a shading mechanism be added.

Regarding this, in the device of this invention, unlike the mechanism in which the scraping conveyor is attached to the tip of the swinging arm, it is vertically installed directly below the trolley 9, so the conveyor trajectory is shifted due to the resistance of the sludge. To prevent this, install a scraper-shaped sludge introduction plate 27 on the side of the scraping port 21 (see Figure 3), and work with its tip almost touching the tank wall (for example, 2). (See Figure 4), it is possible to perform detailed operations to collect all the leftover soil. Since the cake collected by the sludge introduction plate 27 is immediately removed by the conveyor, there is no risk that the cake will accumulate in front of the plate and cause the plate to be bent.

The sludge introducing plate 27 is a cake scraping port 21.
When not in use, they can be folded up if they are hinged directly to the ear plate 19, or pulled up if they are installed separately. In this case, as shown in FIG. 3, a thick pipe 28 is hung down from the side of the guide frame 14 of the swivel table, and a sludge introduction plate 27 is attached to the tip of the pipe, and as shown in FIG. By forming a flange-like joint 29 and connecting it with a shear pin through an arbitrary shear pin hole 30, it is possible to readjust the sludge introduction plate 27 and to avoid overloading when the tip of the plate hits the tank wall. It also has the effect of preventing damage.

The angle of the sludge introducing plate 27 is not only adjusted to an acute angle when the sludge load is large, but also is adjusted so that it protrudes forward, scrapes out the leftover portion at the corner of the tank wall to the side by moving the cart 9, and then further inward. Fine operations such as changing the orientation of the board and scraping it out to the center of the front side by operating the movable girder 8, scraping up all the remaining soil and pulling it out to the action range of the conveyor 15 are also possible. If a small rubber wheel 31 (Fig. 3) is horizontally attached to the tip of the sludge introduction plate 27, when the tip of the plate 27 hits the tank wall (for example 2) (Fig. 4), Reduces friction.

Since the device of this invention has the structure and functions as described above, when carrying out the sludge cake using this device, first the scraping conveyor 15 is moved as shown in FIG. 6a. Scraping opening 21
The conveyor 15 is operated in a horizontal movement direction (that is, from the top to the bottom in the figure) on the movable girder 8 of the trolley 9 with the conveyor facing toward the front, and the scraping conveyor 15 is pulled up every time one course is completed and returned to its original position. The cake is scraped up, and the scraped cake is transferred from the sub-conveyor 24 to the main conveyor 23 and carried out onto the front, for example, a truck 32.
Then, on both sides of the scraping opening 21, the edge ends 19a (Fig. 3) at the bottom of the ear plate 19 divide the cake into sections well, so the work can be continued by sequentially moving the movable girder 8 for each width of the scraping opening 21. However, the majority of the solar bed is scraped off, leaving the peripheral parts of the sludge bed (portions A, B, C, and D) intact. In this case, since the sludge introduction plate 27 is not used, portions A and D in the figure are left with a width of about 30 cm.

In FIG. 6b, when scraping the portion A, the sludge introduction plate 27 on the right side of the scraping port 21 is
In section D, if you use the plate on the left and operate the plate with the tip of the plate close to the tank wall, most of the cake on the top of the floor has already been discharged, so the sludge on the periphery will collapse inward, making it easy to scrape up. becomes.

Furthermore, in FIG. 6c, the scraping conveyor 1
5, turn it 90 degrees, and open the scraping opening 21.
in the direction of movement of the movable girder 8, that is, to the right in the figure, and lower the sludge introduction plate on the right side.While the bogie 9 remains fixed, only the movable girder 8 moves, and the earth removal work in part B is carried out. If this is done, the scooped cake will fall directly onto the main conveyor 23 and can be carried out as is. Similarly, the trolley 9 is shown in Figure 6d.
If you move it directly above part C and work using the sludge introduction plate on the left as shown in Figure 2, most of the remaining soil on the periphery can be removed mechanically.

The above is an explanation of the actual state of cake scraping work.If a U-shaped conveyor is installed as the sub conveyor 24 connected to the main conveyor 23 so that it can surround the rotating frame 13, the scraping opening 21 can face in either direction. The cake can be taken out even when the cake is removed, so without returning the cart 9 or the movable girder 8 to their original positions, only the sludge introduction plate 27 on one side is used and the cake is removed from the periphery by going around the inner circumference of the tank. It offers the convenience of being able to be transported.

[Brief explanation of the drawing]

Figure 1 is an elevational view of the main parts of the device of this invention, Figure 2
The figure is a plan view of a portion thereof, FIG. 3 is a partially cutaway perspective view of the scraping conveyor section, FIG. 4 is a plan view of a portion thereof, FIG. Figures a to d are explanatory diagrams showing how the device of this invention is used step by step. In the figure, 1... solar floor tank, 8...
Moving girder, 9...Dolly, 13...Swivel mount, 15...
...Scraping conveyor, 17...Endless chain, 18...
Scraping plate, 27...Sludge introduction plate.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a discharge device that scrapes up and collects sludge by running left and right on a movable girder that is installed over the sludge bed of a tank and runs back and forth, a scraper that is equipped with scrapers on an endless chain, etc. A device for discharging mud, etc. from the floor, in which a conveyor is installed so that it can be raised and lowered on a rotating platform mounted on left and right running carts. 2. A device for discharging sludge, etc. from a floor according to claim 1 of the Utility Model registration claim, which comprises a sludge introduction plate protruding from the scraping inlet side of the floor surface of the scraping conveyor of the device.