JP3461496B2 - Apparatus and method for cleaning mesh container - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mesh container cleaning device and a cleaning method thereof.

[0002]

2. Description of the Related Art Conventionally, the garbage collection baskets of local governments are heavily soiled, and flies tend to be odorous in the summer, causing complaints from residents. The baskets of work-in-process products used in production plants are also very dirty. The same applies to baskets used in food processing and fish processing plants. The car used in the supermarket also needs to be cleaned to some extent, even if it is dirty.
Such dirt on the mesh container may be washed, but it takes labor and time to wash it manually. If a cleaning agent is used, there is a problem that attention must be paid to wastewater treatment. If it is attempted to wash a heavily soiled object by jetting high-pressure water or the like, it takes a long time to wash and it is not easy to hold the mesh container during washing.

As a means for solving this problem, Japanese Patent Laid-Open No. 2001-
87726 and a sand blast cleaning device consisting of pressurized water and a Venturi tube is proposed, but no embodiment of the invention is shown.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a cleaning device for a mesh container and a cleaning method thereof, which facilitates the cleaning operation, requires less time for cleaning, and does not cause environmental problems such as drainage. It is a thing.

[0005]

The inventor of the present invention uses water 16 and hard particles 17 as a cleaning device for a mesh container.
A cleaning tank 1 having a water supply pipe 4 and a partition plate 2 opened downward, an adjacent water tank 3 that receives the overflow, a circulating water guide opening to a partition area in the cleaning tank 1 and communicating with the water tank 3. The mesh container 14 is held downward with respect to the pipe 5, the separation tank 6 that receives the overflow of the water storage tank 3, the drain tank 7, and the cleaning tank 1, and the mesh container 14 can be freely moved up and down, and the mesh container 14 can be rotated horizontally. Retaining / rotating part 8 of a mesh container, a cleaning hard particle discharge pipe group 9 for discharging hard particles for cleaning the mesh container 14, and a hard particle moving pipe group for moving the hard particles 17 dropped in the cleaning tank 1 to the center 10, a hard particle removing water discharge pipe group 11 for removing hard particles 17 adhering to the mesh container 14, and the cleaning hard particle discharge pipe group 9 stores the hard particles 17 in the mesh container 14
It consists of two groups for discharging inside and outside of the side surface and two groups for discharging inside and outside of the bottom surface, and the hard particle removing water discharging pipe group 11 discharges water 16 to the outside of the side surface of the mesh container 14. I came to find something.

Further, in this mesh container cleaning apparatus, the hard particle suction pipes of the individual cleaning hard particle discharge pipes (9 ') of the cleaning hard particle discharge pipe group 9 for cleaning the mesh container 14 We have found that it is convenient to make the lower part of 15 larger than the upper part and to provide a plurality of small holes near the suction port.

In order to wash the mesh container 14 using the above-mentioned mesh container washing apparatus, one mesh container 14 is fixed to the holding / rotating part 8 of the mesh container, and the mesh container 14 is lowered into the washing tank 1 and rotated for a predetermined time. In doing so, the water 16 is continuously supplied from the water supply pipe 4, the water 16 is received from the cleaning tank 1 to the water storage tank 3 via the circulating water guide pipe 5, and the water 16 in the water storage tank 3 is washed hard particles. It is supplied to the discharge pipe group 9, and the mesh container 14 is thoroughly sprayed with a mixture of water 16 and hard particles 17 to wash the entire surface thereof. Meanwhile, the hard particles 17 deposited on one corner of the bottom of the cleaning tank 1 are concentrated in the center of the bottom. In order to move the water, the water 16 in the water storage tank 3 is also supplied to the hard particle moving pipe group 10, and after the cleaning is finished, the supply of the water 16 is stopped to remove the hard particles 17 adhering to the mesh container 14. , Water in reservoir 3
After 16 is supplied to the water discharge pipe group 11 for removing hard particles for a predetermined time, the rotation of the holding and rotating unit 8 of the mesh container is stopped,
The mesh container 14 may be lifted from the cleaning tank 1 and the mesh container 14 may be removed from the mesh container holding and rotating unit 8 repeatedly.

Further, in this way, the mesh container 14
The water pressure of the water 16 supplied to the cleaning hard particle discharge tube group 9 and the hard particle moving tube group 10 is 2 kg / cm when cleaning the water.
² , it was found that the total water amount is preferably 1200 L / min.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The mesh container 14 to be cleaned in the present invention is made of plastic and has a lattice-like surface. Many of the mesh containers 14 are box-shaped, with a length of 360 mm, a width of 520 mm, and a height of 310 mm.
Some are 425 mm long, 612 mm wide, and 310 mm high.

An example of a cleaning device for the mesh container 14 is shown in FIGS. 1 to 4. When cleaning the mesh container 14, the cleaning tank 1 is provided with 1800 L of cleaning water 16 and hard particles.
As 120, 120 to 150 kg of river sand (size of 1 to 2 mm) is put, and the sand layer becomes about 15 cm. The hard particles 16 are preferably sand, but those having the same mobility and cleaning effect as sand are included. The cleaning tank 1 is configured such that one of the bottom portions is inclined inward to prevent the hard particles 17 from being unevenly distributed in one corner. Adjacent to the cleaning tank 1, there is a water storage tank 3 that receives the overflow, and a separation tank 6 that receives the overflow and a drainage tank 7 are connected. The water levels of the washing tank 1, the water storage tank 3 and the separation tank 6 are the same, but the water level of the drainage tank 7 that receives overflow from the separation tank 6 is slightly lower than these, and a drainage port is provided at the center of the bottom. It has been. The separation tank 6 is for separating the deposits in the wastewater, and removes the deposits at appropriate times. Due to the above, the total size of these is 2700 mm in length and 1200 m in depth.
The height is 1100 mm.

As shown in FIGS. 5 and 6, the cleaning tank 1 is provided with two partition plates 2 which are open downward, and the upper edge of the partition plate 2 is aligned with the water level of the cleaning tank 1 so that the partition plate 2 and the cleaning tank 1 are connected to each other. The hard particles 17 are prevented from mixing with the water 16 in the partition area between the side plates. That is, the water 16 is taken in from the lower opening of the partition plate 2 and is dropped from the lower opening even if the hard particles 17 are mixed.
As shown in FIG. 5 (A), since the cleaning tank 1 is inclined inwardly at the lower side of the side plate, the hard particles 17 that have fallen off slide toward the center. Then, each circulating water guide pipe 5 is opened in a partition region between the partition plate 2 and the side plate of the cleaning tank 1 at a position slightly lower than the water level of the cleaning tank 1 so as to communicate with the water tank 3, and is accumulated in the water tank 3. The hard particles 17 are prevented from mixing in the water 16.

In order to eliminate the accumulation of dirt in the water 16, while cleaning the mesh container 14, 5 to 7 L of purified water per mesh container 14 is automatically replenished from the water replenishment pipe 4, so drainage occurs. , The drainage has not reached the water quality that causes environmental problems.

The lifting / lowering of the holding / rotating portion 8 of the mesh container is carried out by the air pressure of the air compressor via the electromagnetic valve. The mesh container 14 is clamped at its opening projecting edge with a locking tool at the center opposite to the elastic lower end frame of the rotation holding part 8 of the mesh container in the raised position as shown in FIG. After holding, the mesh container 14 is lowered into the cleaning tank 1, and the mesh container 14 is rotated at one rotation per minute by the reduction gear of the motor (25 W).

When cleaning, the water 16 from the water storage tank 3 is pumped.
Two submersible pumps (11 kW in total) and a water supply pipe 13 for cleaning the mesh container 1 at a water pressure of 2 kg / cm ² and a total water volume of 1200 L / min. Is supplied to the moving tube group 10 for moving hard particles. The submersible pump is used in the water tank 3, but the ordinary pump 12 is placed outside the water tank 3. While the holding and rotating unit 8 of the mesh container is rotating, the water 16 containing the hard particles 17 divided in the four directions is discharged from the cleaning hard particle discharge pipe group 9 to clean the entire surface of the mesh container 14, while moving the hard particles. Water 16 is also supplied to the pipe group 10 to move the hard particles 17 evenly to the center of the bottom of the cleaning tank 1, and as a result, it is considerably soiled (example of the mesh container 14: vertical 360 mm, horizontal) 520 m
m, height 310 mm), the cleaning time is about 2 minutes. The cleaning time can be adjusted arbitrarily.

The hard particle discharge pipe group 9 for cleaning is discharged into the inside of the side surface of the mesh container 14 and two groups of 10 tubes discharging outside the side surface of the mesh container 14 and 5 tubes discharging outside the bottom surface. It is composed of a total of 4 groups of 2 groups consisting of 5 and 3 ejecting on the inside of the bottom surface. In addition, as shown in FIG. 4, the group 10 for moving hard particles has one vertical hard particle suction tube 15 near the left end of the bottom of the cleaning tank 1, one at each end, and a hard particle inclined downward. The particle suction tube 15 is made up of two bifurcated tubes, two at the center and a total of four.

Each of the cleaning hard particle discharge tube group 9 and the hard particle moving tube group 10 utilizes the structure of an ejector, and sucks the hard particles 17 by a water stream and discharges the hard particles 17 together with the water stream. Is. For cleaning hard particles discharge pipe 9 'is in Figure 7, below the hard particles suction tube 15 (including 25 cm, the tapered region from the lower end)
The diameter of the pipe is slightly larger (30 mmφ) than the diameter of the upper part (22 mmφ), and 4 small holes (8 m
mφ) is provided so that the suction effect of the hard particles 17 can be obtained. The large diameter below the hard particle suction tube 15 alleviates the difficulty of suction due to 17 layers (3-4 cm) of hard particles inside the tube when operation is stopped, and the four small holes near the suction port are
16 facilitates the inflow and promotes suction of the hard particles 17. In the case of the hard particle moving tube group 10, the hard particle moving tubes 15 of the individual hard particle moving tubes are configured to be considerably short, whether vertical or inclined downward.

Finally, in order to remove the hard particles 17 adhering to the mesh container 14, as shown in FIGS. 3 and 4,
The submersible pump (1.
2 kW) and water supply pipe 13 'for water discharge pipe group for removing hard particles
Discharge to 11 at a water pressure of 1.5 kg / cm ² and a water volume of 80 L / min for about 15 seconds. A group of water discharge pipes 11 for removing hard particles is branched from a vertical water supply pipe 13 ′ along the partition plate 2 at a right angle to face the partition plate 2 in an oblique direction. As in the former case, the pump 12 'is not limited to the submersible pump.
Next, the rotation of the mesh container holding and rotating unit 8 is stopped, and the washed mesh container 14 is pulled out from the cleaning tank 1 and removed.

[0018]

EFFECTS OF THE INVENTION The cleaning work of the mesh container is a simple work since it is only attached and taken out, and it is carried out almost automatically, so that the use of a submersible pump does not generate the noise of the device and the structure is complicated in a short time. The mesh container can be cleaned without causing drainage problems.

[Brief description of drawings]

FIG. 1 is an explanatory view showing a state where a mesh container is above a cleaning tank.

FIG. 2 is an explanatory view showing a state where a mesh container is in a cleaning tank.

FIG. 3 is an explanatory view of the inside of the cleaning device for the mesh container as viewed from the side.

FIG. 4 is an explanatory view of the inside of the cleaning device for the mesh container as viewed from above.

5A and 5B are explanatory views showing an arrangement of circulating water guide pipes of a cleaning device for a mesh container, FIG. 5A is a side view, and FIG.

FIG. 6 is an explanatory diagram showing an arrangement of partition plates of a cleaning device for a mesh container.

7A and 7B are explanatory views showing a hard particle discharge pipe for cleaning a mesh container, FIG. 7C is an external view, and FIG. 7D is an internal state view thereof.

FIG. 8 shows a holding frame of a mesh container, (E) is a side view, (F) is a plan view, and (G) is a side view showing a state in which the mesh container is held.

[Explanation of symbols]

1 cleaning tank 2 partition boards 3 water tank 4 Water supply pipe 5 Circulating water induction pipe 6 separation tanks 7 drainage tank 8 Mesh container holding and rotating part 9 Hard particle discharge tube group for cleaning 9'Hard particle discharge pipe for cleaning 10 Tubes for moving hard particles 11 Water discharge pipe group for removing hard particles 12 pumps 12 'pump 13 Water pipe 13 'water pipe 14 mesh container 15 Hard particle suction tube 16 water 17 hard particles

Claims (4)

(57) [Claims] 1. A washing tank (1) containing water (16) and hard particles (17), having a water supply pipe (4) and a partition plate (2) open downward, and an adjacent water storage receiving the overflow thereof. A tank (3), a circulating water guide pipe (5) that opens into a partition area in the cleaning tank (1) and communicates with the water tank (3), a separation tank (6) that receives an overflow of the water tank (3), and a drain tank ( 7), the mesh container (14) is held downward with respect to the cleaning tank (1) and can be raised and lowered freely, and the mesh container (14)
In the cleaning tank (1), a holding / rotating part (8) of a mesh container capable of rotating horizontally, a cleaning hard particle discharge pipe group (9) for discharging hard particles for cleaning the mesh container (14), and a cleaning tank (1). Hard particle moving tube group (10) that moves the dropped hard particles (17) to the center, mesh container (1
4) consists of a water discharge pipe group (11) for removing hard particles (17) that adheres to the hard particle (17) and a cleaning hard particle discharge pipe group (9) stores the hard particles (17) in a mesh container (14). It consists of two groups that discharge inside and outside of the side surface and two groups that discharge inside and outside of the bottom surface. The water discharge pipe group for removing hard particles (11) is
6) A cleaning device for mesh containers, which discharges 6) to the outside of the sides of the mesh container (14). 2. An individual cleaning hard particle discharge tube group (9)
The cleaning device for a mesh container according to claim 1, wherein the lower part of the hard particle suction pipe (15) of the cleaning hard particle discharge pipe (9 ') is made larger in diameter than the upper part thereof, and a plurality of small holes are provided near the suction port. 3. The cleaning device for a mesh container according to claim 1 or 2, wherein one mesh container (14) is fixed to a holding and rotating part (8) of the mesh container and lowered into the cleaning tank (1). When rotating for a predetermined time, water (16) is continuously replenished from the water supply pipe (4), and water (16) is supplied from the washing tank (1) to the water storage tank ( 3), the water (16) in the water tank (3) is supplied to the cleaning hard particle discharge pipe group (9), and the mesh container (14) is mixed with the water (16) and the hard particles (17). The entire surface of the cleaning tank (1) is washed by applying it firmly, and during that time, the hard particles (17) that accumulate on the bottom corners of the cleaning tank (1) are moved to the center of the bottom, so the water (16) in the water storage tank (3) is moved by the hard particles. Tube group (1
0) and after the washing is finished, the supply of water (16) to them is stopped and the hard particles (17) adhering to the mesh container (14) are removed, so that water (16) in the water tank (3) is removed. ) Is supplied to the water discharge pipe group (11) for removing hard particles for a predetermined time,
Stop the rotation of the mesh container holding and rotating unit (8),
Raise the mesh container (14) from the washing tank (1),
A method for cleaning a mesh container, wherein the mesh container (14) is repeatedly removed from the mesh container holding and rotating unit (8). 4. The water pressure of water (16) supplied to the cleaning hard particle discharge tube group (9) and the hard particle moving tube group (10) is 2 kg.
/ Cm ^2, the method of cleaning the mesh container according to claim 3, wherein the total amount of water is 1200L / min.