JPS6032190Y2 - Sludge cleaning equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for cleaning screen scum (screen scum) captured in a waterway or the like.

In general, a comb-shaped rake that captures garbage, etc. in drift ice with a screen installed across a waterway, such as a sewage inflow channel, moves up and down along the screen, and is inserted between vertical bars of the screen. This removes dirt, ie screen scum.

Incidentally, since the residue contains oils and fats, sludge, human excrement, and other organic substances, it is dehydrated after being washed.

Conventional cleaning equipment of this type sprays pressurized water onto the sludge in the water from above the water tank, and uses the impact force of the pressure water to crush and clean human feces, but it has no aeration effect and the sludge is washed away. There is a problem in that it is difficult to separate organic substances attached to the

This idea was made in view of the above-mentioned actual circumstances, and its purpose is to provide an aeration effect and to facilitate the separation of organic matter adhering to the scum, thereby further enhancing the cleaning effect. At the point.

Hereinafter, embodiments of this invention will be described in detail with reference to the drawings.

The cleaning device according to this invention includes a box-shaped cleaning tank 1, an intermediate bed 5 provided on the bottom plate 2 of the cleaning device except for the ends 3 and 4 on the sludge input side and the sludge discharge side, and the end portion on the sludge discharge side. a sludge screen 6 installed at an angle on the intermediate floor 5; a sludge scraping and discharging device 7 on the back side of the screen 6 for scraping up the sludge caught on the screen 6 and discharging it outside the tank 1; 5, and water circulation vanes 9 that cause a water flow to flow toward the screen 6 on the intermediate floor 5 and in the opposite direction below the intermediate floor 5. ing.

The bottom plate 2 of the cleaning tank 1 is inclined so that the sludge input side is higher, and a drain pipe 10 and a drain valve 11 are installed at the end of the sludge discharge side.
is provided and supported by legs 12.

Further, the intermediate floor 5 is made parallel to the bottom plate 2, so that water rises from between the end of the intermediate bed 5 and the side end 3, and water descends from between the end of the intermediate bed 5 and the side end 4. It's being faked.

The air jet pipes 8 on the intermediate floor 5 are fixed to air supply branch pipes 16 which are respectively connected to an air supply main pipe 14 connected to the outlet of the air tank 13 via on-off valves 15.

The screen 6 is made up of a large number of flat bars arranged vertically at small intervals.The lower end 6A is bent to form a vertical state, and the upper end 6B is curved downward to form an oblique view of the cleaning tank 1. It is fixed to the tip of a water receiving plate 17 that protrudes upward and extends obliquely upward from the upper edge of the cleaning tank 1, and the outer circumferential side of the screen upper end 6B is a side plate that extends from the upper ends of the front and rear plates of the cleaning tank 1. 18.

The side plate 18 is further extended to create a space above and in front of the screen 6 for scraping up and discharging residue, and a deodorizing cover 19 is arranged above and in front of the deodorizing cover 20 provided on the upper edge of the cleaning tank 1. provided to connect.

A deodorizing pipe connecting pipe 21 is fixed to the deodorizing cover 19.

In addition, 22 is a chute, and a dewatering device or the like (not shown) is connected to the washed liquid outlet 23, which is constituted by the chute 22, the side plate 18, and the deodorizing cover 19.

The cleaning and scraping device 7 consists of a rotating shaft 24.25 mounted on both upper and lower ends of the back side of the screen 6, and this rotating shaft 24.2.
Sprockets 26 and 27 wedged on each end of 5
, a pair of left and right endless chains 728 hung on the sprockets 26 and 27, one or more rakes 29 attached to these between the left and right pair of endless chains, and a rotating shaft drive motor 30. It is configured.

Therefore, as the motor 30 is driven, the washed residue on the screen 6 is scraped up by the rake 29 that protrudes long above the screen 6.

The water flow circulation vanes 9 have rotating shafts 31 and 32 that pass upward and downward from the intermediate floor 5 of both side plates IA and IB of the cleaning tank 1.
are wedged to and rotated by motors 33 and 34, respectively.

In addition, 35 is a compressor, 36 is a sludge input hopper, 37 is an inspection walkway, 38 is a stage, and 39 is a handrail.

According to the cleaning device according to this invention, the water level in the cleaning tank 1 is kept almost constant while the residue is transferred to the input hopper 36.
The water is put into the cleaning tank 1, the motors 30, 33, and 34 are rotated, and the on-off valve 15 is opened to blow out air from the air jet pipe 8 into the water.

The water in the cleaning tank 1 flows and circulates in the direction shown by the arrow in Fig. 2, and air is ejected, so that the sludge is agitated and comes into contact with the air, and human excrement, etc., are crushed and the sludge is crushed. The organic substances adhering to the filter are easily separated and removed, and the washed residue is washed away by a water stream and applied to the screen 6.

The residue washed in this manner and covered on the screen 6 is scraped up by the rake 29 and falls onto the chute 22, where it is sent to a dewatering device or the like.

As mentioned above, the sludge cleaning device according to this invention generates a water flow in a certain direction and blows air into the water flow, so that the sludge is well agitated and not mixed into the sludge. The human excrement, etc. that is left behind is crushed, and the organic matter attached to the residue is easily separated by contact with the air and is easily removed, and the aeration effect of the air is added to remove the bad odor emitted from the residue, reducing the odor. Since it can be extracted from the deodorizing pipe and treated, it is extremely hygienic, and has the effect of further enhancing the cleaning effect and improving efficiency.

In the embodiment of this invention, the air jet pipe 8 is provided diagonally, but it may be provided vertically, and the water circulation blades 9 may be provided only on the residue input side.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a side view, Fig. 2 is a longitudinal sectional front view taken along line ■-■ in Fig. 1, and Fig. 3 is a longitudinal sectional view taken along line -■ in Fig. FIG. 1...Cleaning tank, 2...Bottom plate, 3, 4.
...Side end, 5...Middle floor, 6...
...Residue screen, 7..Residue scraping and discharge device, 8..Air jet pipe, 9..Water flow circulation vane.

Claims (1)

[Scope of utility model registration request] A box-shaped cleaning tank 1, an intermediate floor 5 provided on the bottom plate 2 of the cleaning tank except for the ends 3 and 4 on the sludge input side and the sludge discharge side, and an intermediate bed 5 provided at an angle on the intermediate bed 5 on the sludge discharge side. A sludge screen 6, a sludge lifting and discharging device 7 for scraping up and discharging the sludge hanging on the screen 6 on the back side of the screen 6, and an intermediate floor 5.
It is composed of a large number of air jet pipes 8 provided above, and water circulation vanes 9 that cause a water flow to flow toward a screen 6 on the intermediate floor 5 and in the opposite direction below the intermediate floor 5. Liquid cleaning equipment.