JPS60257899A - Apparatus for removing precipitate in treatment tank such as purification tank - Google Patents

Abstract

PURPOSE:To make it possible to easily remove a precipitate, by providing a tank for sucking a precipitate from a purification tank of excretion or the like through a suction nozzle and separating the same into a solid and a liquid therein. CONSTITUTION:Sludge or raw excretion is withdrawn from purification tanks 1, 2 and washing water is supplied through a suction horse 18. A vacuum pump 15 is operated to inject washing water toward a precipitate P from a jet orifice 21 to wash the precipitate P, and the precipitate P and washing water are sucked in a tank 3 through the suction hose 18. The tank 3 is arranged so as to incline the axial line thereof and the mixture consisting of the precipitate P and washing water is sucked in the tank 3 from the connection port 6 provided to the almost lower side central part of the outer periphery of the tank 3 to be separated into a solid and a liquid.

Description

[Detailed Description of the Invention] Purpose of the Invention (Field of Industrial Application) This invention is directed to a treatment tank such as a septic tank in which sludge, raw human waste, etc. are input for purification treatment, and the sedimentation of sand, etc. This invention relates to a removal device for removing objects.

(Prior Art) Generally, in a treatment tank such as a septic tank in which sludge, raw human waste, etc. are input and purified, a portion of the bottom surface is removed in order to settle out sand, solids, etc. contained in the sludge, etc. A sediment storage section is provided in the section. In the past, sludge from the tank was regularly collected. A worker entered the tank and removed the sand and other sediments that had settled inside the tank. For this reason, the work of removing the precipitate is extremely troublesome and time consuming, and there are also disadvantages in that it is accompanied by dangers such as oxygen deficiency and inhalation of toxic gas.

(Problems to be Solved by the Invention) The present invention solves the deficiencies in the conventional technology as described above, and makes it possible to easily remove sediment in a treatment tank such as a septic tank by suction without entering the tank. Provided is a device for removing sediment in a treatment tank such as a septic tank, which is capable of removing liquid and discharging solid matter after cleaning the sediment in the septic tank.

This is what we are trying to do.

Structure of the Invention (Means for Solving the Problems) In order to solve all of the above-mentioned problems, the present invention collects formic acid from a treatment tank such as a septic tank, a pre-receiving tank, a charging tank, a storage tank, etc. through a suction nozzle. , a tank that sucks sediment such as ballast, sludge, solids, etc. and separates it into solid and liquid inside;
It is equipped with a vacuum pump for maintaining the inside of the tank in a negative pressure state, and a return means for returning the liquid separated in the tank to the processing tank.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

Now, in FIG. 1, 1 and 2 indicate the entire septic tank for purifying sludge and raw human waste, and the upper part thereof is provided with input ports 1a and 2a for introducing the sludge and raw human waste.

Below the input ports ia and 2a, sediment storage areas 1b and 2) are formed on the bottom of each septic tank 1 and 2, and the sand contained in the sludge and human waste immersed in the septic tank 1 and 2 is formed. , varnish, solid matter, etc. are deposited in these storage parts 1b and 2b.

A substantially cylindrical closed tank 3 is disposed on the ground near the septic tanks 1 and 2 on a support base 4 with its axis inclined. As shown in Fig. 1-2, on the outer periphery of the tank 3, there are connection ports 5. at the upper end of the tank, at the center and lower end of the upper and lower sides, and at the lower end of the sides.
6.7.8 are provided respectively. Further, an outlet 9 is formed at the lower edge of the tank 3, and an opening/closing lid 10 is attached to the outlet 9 so as to be rotatable in opening and closing.
1/11 is normally held closed.

As shown in FIG. 1, an intake pipe 12 is connected to the connection port 5 at the upper end of the tank 3, and a water drain container 14 and a vacuum pump are connected to the intake pipe 12 through a joint 13, etc. 15 and an opening/closing pulp 16 are provided. Gas is discharged from the tank 3 by the operation of the vacuum pump 15, so that the tank 3 is always maintained at a negative pressure state.

A joint 17 is connected to the connection port 6 at the center of the lower side of the tank 3.
A suction hose 18 is connected through the septic tank 1.2 and can be extended from the inlets ia, 2a of the septic tank 1.2 into the storage parts 1b, 2b. An on-off valve 19 is connected to the middle of the suction hose 18, and a suction nozzle 20 as shown in FIG. 4 is connected to the tip of the suction hose 18. A tapered opening 20a is formed for sucking in sediment P-2 such as sand that has settled inside.

The tip surface of the suction nozzle /l/20 and the tapered opening 20
A plurality of injection holes 21 are formed in a, and the injection holes 21
The injection means is constituted by:

Further, a connection port 23 for connecting a water supply pipe 22 such as a water pipe is provided on the outer periphery of the base end of the suction nozzle 20, and the suction nozzle/
A water passage 24 is formed on the side wall of 1/20. Then, connect from the water supply pipe °22 [:J 23 +'r
Cleaning water such as tap water supplied by C is injected from the injection hole 21 toward the precipitate P, and the precipitate 1' is washed prior to suction, and the precipitate P is transferred together with the washing water to the suction nozzle) v20 I/I in tank 3: It is sucked in and separated into solid and liquid in tank 3.

A return hose 25 is connected to the connection port 8 near the upper end of the side surface of the iJ tank 3, and its tip can be extended to the entire septic tank 1.2P3. An opening/closing pulp 27 and a water pump 28 are provided in the middle of the return hose 25 via a joint 26 and the like, and the return hose 25, the water pump 28, and the like constitute a return means. The liquid separated in the tank 3 is then returned to the septic tank 1.2 by the operation of the water pump 28.

As shown in FIG. 2, a water level detection member 29.30 consisting of a pair of upper and lower electrodes is provided on the side surface of the tank 3, and the water level of the tank 3P'3 is detected by this detection member 29.30. It looks like this.

When the water level in the tank 3 rises above a predetermined high level, the water supply pump 2 is activated in response to the detection operation of the upper water level detection member 29, and the liquid in the tank 3 is pumped into the septic tanks 1 and 2. When the water level in the tank 3 falls beyond a predetermined low I/bell, the operation of the water pump 2B is stopped in accordance with the detection operation of the lower water level detection member 30.

A drainage vibrator 3 is connected to the connection port γ at the lower end of the tank 3.
1 is connected, and an opening/closing pulp 32 is provided in the middle of the drainage pipe 31. And this opening/closing pulp 32
The liquid in the tank 3 can be drawn out from the connecting lower with the . Then, the precipitate P in the tank 3 can be discharged from an outlet 9 to a truck T or the like. As shown in Fig. 5, a receiving member 33 in which plate materials 32 are arranged radially is fixed inside the connecting lower, and when a pebble or the like is placed on this receiving member 33, this receiving member 33 is fixed. A filter is constituted by the member 33 and pebbles.

Next, the entire operation of the precipitate removing apparatus constructed as described above will be explained.

Now, when using the device of this embodiment to remove sediment P such as sand deposited in the storage parts 1b and 2bK in the septic tanks 1 and 2, first remove all sludge, raw urine, etc. from the septic tanks 1 and 2. Then, the suction hose 18 is inserted into the storage parts 1t) and 2b from the input ports 1a and 2a. In this state, water supply pipe 2
When cleaning water such as tap water is supplied from 2 to the suction nozzle at the tip of the suction hose 18 (v20) and the vacuum pump 15 is activated, cleaning water is sprayed toward the sediment P from the numerous injection holes 21 at the tip of the suction nozzle 20. is injected, the precipitate I' is washed away, and the inside of the tank 3 becomes a negative pressure state, and the precipitate P and cleaning water are discharged from the suction nozzle 20 to the suction hose 18.
It is sucked into the tank 3 through.

In this embodiment, a substantially cylindrical tank 3 is arranged with its axis inclined, and the mixture of the precipitate P and washing water flows through a connection port provided at the lower center of the outer periphery of the tank 3. 6 into the tank 3, solids with high specific gravity in the mixture move to the outlet 9 at the lower end of the tank 3 due to their own weight, and liquids with low specific gravity move above them. stay. Therefore, the mixture drawn into the tank 3 is automatically separated into solid and liquid.

When the water level in the tank 3 rises in this manner and reaches a predetermined high level, the water pump 2B is activated based on the detection operation of the upper water level detection member 29. Accordingly, the liquid separated in the tank 3 is returned to the septic tank 1, 2 via the return hose 25, and the sediment 1) in the reservoir 1b, 2b is discharged in the vc direction. In this case, the suction sardine 20 is pulled up from the sunken sardine to bring the inside of the tank 3 to atmospheric pressure. Therefore, the cleaning water injected from the injection hole 21 of the suction nozzle 20 and the return hose 2
5, the precipitate P is quickly and reliably washed and sucked into the tank 31711.

Therefore, separation of solid and liquid within the tank 3 is performed smoothly and efficiently.

When the water level in the tank 3 reaches a predetermined low level (V), the water pump 28 is operated based on the detection operation of the lower water level detection member 30, and the water is transferred from the tank 3 into the septic tanks 1 and 2. The return of liquid to is interrupted. After the precipitate P in the septic tanks 1 and 2 has been sucked into the tank 3 in this way, when the opening/closing pulp 32 of the drainage vibrator 31 is opened, the liquid in the tank 3 is transferred to the drainage pipe 31. is discharged through the tank 3, and only the sediment P such as sand remains in the tank 3.

Therefore, if you do not fully open the opening/closing lid 10 in this state, the first
As shown in the figure, the precipitate P is taken out from the exit 9 through the truck T.
It can be taken out very easily.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and the configuration of each part can be arbitrarily changed and embodied without departing from the spirit of the invention. Further, the present invention may be applied to other treatment tanks other than septic tanks, such as pre-receiving tanks, charging tanks, and storage tanks.

Effects of the Invention As detailed above, the present invention allows sediments in a treatment tank such as a septic tank to be easily removed by suction without entering the tank, and after cleaning the sediments in the septic tank, liquid It has the excellent effect of being able to remove solid matter and discharge it.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the outline of a sediment removal device embodying the present invention, Figure 2 is an enlarged front view of the separation tank, Figure 3 is a side view of the tank, and Figure 4. 5 is a partial cross-sectional view showing an enlarged view of the suction nozzle (V) at the tip of the suction hose.
The figure is a sectional view of the connection port. In the figure, 1 and 2 are septic tanks, 3 is a tank, 15 is a vacuum pump, 18 is a suction hose, 20 is a suction nozzle, 25 is a return hose, 2B is a water pump that constitutes a return means together with the return hose, 29. 31j: Water level detection member. Patent applicant: Arai Seisakusho Co., Ltd.

Claims (1)

[Scope of Claims] 1. Sedimentation of sand, ballast, excrement, solid matter, etc. from a treatment tank such as a septic tank (1, 2), a pre-reception tank, a charging tank, a storage tank, etc., through a suction nozzle (20). A tank (3) that sucks the substance (P) and separates it into solid and liquid inside, 15 vacuum pumps for maintaining the inside of the tank (3) in a negative pressure state, and the tank (3). A device for removing sediment in a treatment tank such as a septic tank, characterized in that it is completely equipped with return means (25, 28, etc.) for returning the liquid separated within the tank (25, 28, etc.) to the treatment tank. 2. The tank (3). is formed into a substantially cylindrical shape and is arranged with its axis inclined, and the suction nozzle is
The suction hose (1B) (7) connected to the tank (1B) (7) is characterized in that the connection port (6) is provided at the upper and lower center of the lower outer periphery of the tank (3). A device for removing sediment in a treatment tank such as a septic tank according to item 1. 3. The return means is composed of a return hose (25) extending from the tank (3) to the treatment tank, and a water pump (28) provided in the middle of the return hose (25). An apparatus for removing sediment in a treatment tank such as a septic tank according to claim 1 or 2. 4. In a treatment tank such as a septic tank according to claim 3, wherein the water pump (28) is operationally controlled by a water level detection member (29, 30) provided in the tank (3). Precipitate removal device.