JPH0542150Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is designed to inhale, load, and transport and treat solids and sludge that have settled at the bottom of sewage, such as sewers, manholes, and gas station car wash ditches. It concerns sludge trucks.

[Conventional technology]

Usually, the sludge truck is a car 1 as shown in Figure 5.
A cylindrical sludge tank 2 and a vacuum generator, for example, a vacuum pump unit 3 are mounted on the top, and the inside of the sludge tank 2 is evacuated and depressurized by the vacuum pump unit 3, and a suction hose is led out from the top of the sludge tank 2. Sludge water from sewerage, etc. is sucked into the sludge tank 2 through the sludge tank 2 (not shown).

By the way, in this type of sludge truck, when sucking and loading sludge water into the sludge tank 2, the sludge water that has entered the sludge tank 2 is discharged and only a large amount of sludge is loaded, and this is specified. If the sludge is transported and discharged to a location, sludge treatment work can be carried out efficiently and economically.

Therefore, in the conventional sludge truck, drainage pots are installed in stages on the side wall of the sludge tank 2 at appropriate intervals in the vertical direction, and sludge water is continuously sucked into the sludge tank 2.
The drainage pots are opened and closed in sequence starting from the bottom one. That is, when the sewage level in the sludge tank 2 rises to the level of the lower drain tank, it is opened and the sewage is discharged. When the upper surface of the sludge deposited on the bottom of the sludge tank 2 rises to near the level of the lower drainage tank, this drainage tank is closed and the next upper drainage tank is opened.

[The problem that the idea aims to solve]

However, if the drainage pots are installed in stages on the side wall of the sludge tank 2 at appropriate intervals in the vertical direction as described above, and the drain pots are opened and closed sequentially starting from the bottom one, it becomes difficult for the operator to switch each drainage pot and to It takes time to connect and replace the drain hose. Furthermore, it is not easy to manufacture the sludge tank 2 because it is necessary to provide drainage pots in stages at appropriate intervals in the vertical direction on the side wall of the sludge tank 2.

This idea was made in view of the above problems, and the sludge collection and treatment work can be carried out efficiently and economically.
The object is to provide a sludge truck that is easy to manufacture and install.

[Means to solve the problem]

In order to achieve this purpose, a number of support rods with tips inserted into the rear opening of the tank body were attached to the upper end of the inner surface of the hatch, which was attached to the rear opening of the tank body so that it could be reversed and opened. It is constructed by suspending chains that protrude over the entire length of the sludge tank in the width direction, and the lower ends of these many support rods abut against the inner circumferential surface of the tank body, and the adjacent chains also abut against each other. At the same time, a chain screen is installed on the rear opening surface of the tank body, a drainage pot is installed at an arbitrary position on the hatch, and a semi-circular plate shape that matches the inner peripheral surface of the lower part of the hatch is installed on the opening surface of the hatch. A pan in which a weir plate is swingably mounted with the upper end as a fulcrum, and furthermore, a large number of pores are formed at the rear of the weir plate in the hatch, the size of which allows only sludge water to pass through. It is covered with a tink plate.

[Effect]

By the above means, the sludge in the sludge water sucked into the sludge tank settles and accumulates inside the tank body which is stopped by the chain screen, and the sewage passes through the chain screen and overflows from the weir plate on the rear side. Furthermore, the water passes through the pores in the punch plate on the rear surface and is drained from the drainage pot provided in the hatch.

〔Example〕

This invention will be explained below based on an embodiment shown in the drawings.

FIG. 1 is a longitudinal section of the rear part of the sludge truck according to this invention, and 11 is a sludge tank mounted on the vehicle.
A cylindrical tank body 12;
hinge 13 of suitable means in place on the rear opening surface of the
It consists of a hatch 14 which is suspended in the closed position so that it can be reversed and opened via the hatch 14. A flange 15 is integrally formed on the peripheral edge of the rear opening surface of the tank body 12 so as to protrude outward. Further, a flange 16 is integrally formed on the periphery of the opening of the hatch 14 to fit with the flange 15, and a seal 18 is attached to an annular groove 17 formed in the flange 16, so that the hatch 14 can be closed to the tank body 12 in a watertight manner. I have to. 1
9 is a chain screen installed on the rear opening surface of the tank body 12 of the sludge tank 11, and as shown in FIG. 2, a large number of chains 19a, 19a...
... are arranged in parallel in contact with each other over the entire widthwise length of the tank body 12, and each chain 19
a, 19a... are inserted into the tank body 12 from the upper end of the inner surface 14' of the hatch 14 and suspended by fixing their upper ends to the tips of a large number of protruding support rods 20, 20..., respectively. At the same time, the lower ends are respectively brought into contact with the inner circumferential surface of the tank body 12.

Reference numeral 21 denotes a weir plate swingably installed on the opening surface of the hatch 14. As shown in FIG. It is fixedly held by holders 23, 23 which are swingably supported by a support shaft 22 which is mounted on a shaft. This weir board 21 may be a single board, but the third
As shown in the figure, it is divided into three circular arc plates 21a, 21b, and 21c in the width direction, and the central circular arc plate 21b is divided in the height direction to form a plurality of plates.
For example, three plate pieces 21b', 21b'', 21b

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A sludge tank is equipped with a number of support rods whose tips are inserted into the rear opening of the tank body at the upper end of the inner surface of the hatch which is attached to the rear opening of the tank body so that it can be reversed and opened. A chain constructed by suspending chains that protrude over the entire length in the width direction of the tank, and the lower ends of the tips of the multiple support rods contact the inner circumferential surface of the tank body, and the adjacent chains also contact each other. A sludge truck characterized in that a screen is installed on the rear opening surface of the tank body, and a drainage pot is installed at an arbitrary position on the hatch. (2) Utility model registration claim No. 1, characterized in that a weir plate in the shape of a semicircular plate that matches the inner peripheral surface of the lower part of the hatch is installed on the opening surface of the hatch so as to be swingable about the upper end thereof as a fulcrum. The sludge truck described in item 1. (3) The above-mentioned weir plate is divided into multiple plate pieces in the height direction, and each of these plate pieces can be detachably attached to a holder that is installed in a hatch so that it can swing freely with the upper part as a fulcrum. The sludge truck according to claim 2 of the utility model registration claim, characterized in that the sludge truck is fixedly held. (4) A request for registration of a utility model characterized in that a punching plate formed with a large number of pores set to a size that allows only sludge water to pass through is installed behind the above-mentioned weir plate in the hatch. Range 1st to
The sludge truck described in paragraph 3. (5) The sludge truck as set forth in claims 1 to 4 of the utility model registration claim, characterized in that an air blowing pipe for bubbling is installed at the central rear portion of the lower surface of the tank body.