JPH05321320A - Preventing device for diffusion of odorous gas in waste storage facility - Google Patents

Abstract

PURPOSE:To prevent leakage of quantities of odors through the discharge cylinder of a vacuum car by a method wherein a branch pipe is mounted on the suction part of a suction fan to suck odorous gas in a waste storage relay tank and a cap fitted in the discharge cylinder of the vacuum car is attached to the tip part of the branch pipe. CONSTITUTION:A branch pipe 49 is branched from a suction pipe 4 of a suction fan 3 through a valve 53, a flexible swing arm pipe 50 is attached to the tip of the branch pipe 49, and a hood-form cap 51 completely fitted in a discharge cylinder 48 of a vacuum car 47 is attached to the tip of a swing arm pipe 50. When excrement in a waste storage relay tank is collected by the vacuum car 47, the discharge cylinder 48 is covered with the cap 51. All the odorous gas discharged through the discharge cylinder 48 is sucked through the branch pipe 49 with the aid of the suction fan 3 and deodorized by a deodorizing device. This constitution prevents leakage of odors through the discharge cylinder of the vacuum car.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing odorous gas diffusion in a waste storage facility.

[0002]

2. Description of the Related Art Conventionally, a filth storage relay tank for storing sewage such as human waste, a suction fan for sucking odorous gas in the sewage storage relay tank, and a deodorizing device for deodorizing the odorous gas sucked by the suction fan Different waste storage facilities are known.

[0003]

SUMMARY OF THE INVENTION The above-mentioned publicly known facility has a large vacuum for collecting human waste collected from ordinary households, public toilets, hotels, etc. with a small vacuum car once in a waste storage relay tank. Although it is transferred to a car and transported to a human waste processing center for processing, when a large vacuum car sucks human waste, a large amount of odor leaks from the exhaust stack of the vacuum car, which is an environmental problem.

[0004]

Therefore, according to the present invention, a waste storage relay tank 1 for storing waste such as human waste, a vacuum car 47 for recovering the waste in the waste storage relay tank 1, and the waste storage relay are provided. Suction fan 3 for sucking odorous gas in tank 1
And a deodorizing device for deodorizing the odorous gas sucked by the suction fan 3 with a chemical liquid 10 such as wood vinegar oil and / or an adsorbing deodorizing material 28 such as activated carbon / zeolite. A branch pipe 49 is attached to the branch pipe 49, and the vacuum car 47 is attached to the tip of the branch pipe 49.
This is a device for preventing odorous gas diffusion in a waste storage facility in which a cap 51 that can be fitted to the exhaust pipe 48 is attached.

[0005]

An embodiment of the present invention will be described with reference to the drawings.
1 is a filth storage relay tank that temporarily stores human waste
Store human waste collected from public toilets, hotels, etc. The waste storage relay tank 1 is an underground tank type buried underground. The human waste stored in the waste storage relay tank 1 is transported to the human waste processing center by a large vacuum car. 2 is a pedestal provided at an arbitrary position above the waste storage relay tank 1, 3 is a suction fan fixed to the base 2, the suction pipe 4 of the suction fan 3 is connected to the upper air chamber of the waste storage relay tank 1, The gas generated in the waste storage relay tank 1 is sucked. Reference numeral 5 is a manhole of the waste storage relay tank 1.

The gas sucked by the suction fan 3 is guided to the side chemical cleaner 7 through the exhaust pipe 6. The chemical cleaner 7 is composed of a chemical deodorizer 8 having a vertically long cylindrical shape and a chemical tank 9 on which the chemical deodorizer 8 is mounted, and mainly uses wood vinegar oil as the chemical 10. A pump 11 is attached to the chemical liquid tank 9, and the chemical liquid 10 is sucked from a lower suction port 12 and sent through a vertical pipe 13 to a horizontal pipe 14 provided at an upper position of the chemical liquid deodorization tower 8, and a plurality of spray nozzles provided in the horizontal pipe 14. Drop from 15.

Inside the chemical liquid deodorizing tower 8, a plurality of (4 in the figure) horizontal rectifying plates 1 are arranged at predetermined intervals in the vertical direction.
6 is provided. The horizontal straightening plate 16 has an outer diameter (about 80 cm) equal to the inner diameter of the chemical deodorizing tower 8, and is a perforated plate in which a number of up-and-down through holes 17 having a diameter of about 1 cm are formed on the plate surface.

An inlet 18 connecting the exhaust pipe 6 is formed at a lower position of the chemical deodorizing tower 8, and the gas introduced from the inlet 18 passes through the through holes 17 of the plurality of horizontal flow straightening plates 16. To rise. On the other hand, the chemical liquid 10 sprayed and dropped from the spray nozzle 15 flows through the upper and lower through holes 17 of the uppermost horizontal flow straightening plate 16 and flows down to the horizontal flow straightening plate 16 therebelow, but as shown in FIG. Since the gas blows up where it falls through the narrow through hole 17, the offensive odor component of the gas (the offensive odor component is said to be solid) is often dissolved in the chemical liquid 10, and the chemical liquid 10 is mainly wood vinegar oil. , Deodorize considerably. The gas deodorized (primarily deodorized) in this way is discharged from an exhaust port 19 formed at the upper end of the chemical deodorization tower 8.

Reference numeral 21 is a connecting pipe connected to the exhaust port 19 of the chemical liquid deodorizing tower 8, and the mist separator 2 is connected to the other end of the connecting pipe 21.
Connect two. A connecting pipe 23 is connected to the mist separator 22, and a chemical deodorizing tower 24 is connected to the other end of the connecting pipe 23.
Reference numeral 25 is a drain pipe of the mist separator 22.

Reference numeral 26 denotes a vertically long rectangular tubular outer case of the chemical deodorizing tower 24. Inside the outer case 26, a plurality of racks 27 are provided at predetermined intervals vertically. Rack 2
An adsorption deodorizing material 28 such as activated carbon or zeolite is deposited on the surface 7. The odorous gas from the communication pipe 23 is introduced from the air inlet 29 formed at the lower position of the outer case 26 to the outer case 2.
After entering the inside of the outer casing 6, rising in the outer casing 26, and being deodorized by the adsorbing / deodorizing material 28, it is exhausted from the exhaust port 30 in the upper portion of the outer casing 26.

In the deodorizing work using the adsorbing / deodorizing material 28, a large amount of adsorbing / deodorizing material is used. However, the adsorbing / deodorizing material 28 in each part has a different deterioration rate, and only the deteriorated adsorbing / deodorizing material 28 is reliably replaced. It was difficult. Therefore, in the present invention, only the adsorption / deodorization material 28 that is most deteriorated, that is, the adsorption / deodorization material 2 deposited on the lower rack 27 in this embodiment.
8 is discarded, and the adsorbed deodorizing material 28 accumulated on the upper rack 27 is transferred to the lower rack 27, and the upper rack 2
A new adsorption and deodorizing material 28 is deposited on 7
The adsorbing / deodorizing material 28 is efficiently used, and only the adsorbing / deodorizing material 28 that has deteriorated and cannot be used any more can be discarded. This will be described in detail below.

6 to 8 relate to the racks 27, and each rack 27 is composed of three net shelves 31.
Reinforcing ribs 32 are fixed to the lower surface of each net shelf 31,
The rotating shafts 33 are inserted and fixed to the left and right centers of the reinforcing ribs 32, respectively. As shown in FIG. 6, each rotary shaft 33 is axially fixed to the outer case 26, and one end side 34 thereof penetrates the outer case 26 to be largely projected laterally, and the base of the arm 35 is respectively placed therein. Fix it. Reference numeral 36 denotes a cylinder which is fixed to a bracket 37 fixed to the outer case 26 side, and one of three arms 35 is locked to a piston 38 of the cylinder 36. The tip ends of the arms 35 are connected to each other by a connecting rod 39, and when one arm 35 is rotated by expanding and contracting the piston 38 of the cylinder 36, the other arms 35 are also rotated in association with each other. The three rotation shafts 33 are configured to rotate simultaneously.

When the rotary shafts 33 are rotated counterclockwise in FIG. 8, the net shelves 31 are tilted so that the adsorbing / deodorizing material 28 deposited on the net shelves 31 can be dropped downward. In the actual replacement work, first, the lower cylinder 36 is operated to drop the adsorbing / deodorizing material 28 deposited on the lower rack 27 onto the bottom portion 40 of the outer case 26, and then the lower rack 27 is used as a base. After returning, the upper cylinder 36 is operated to drop the adsorbed deodorizing material 28 deposited on the upper rack 27 onto the lower rack 27 and deposit it. After returning this to the upper rack 27, the new adsorption / deodorizing material 28 is passed through the window through hole 41 in the upper part of the outer case 26.
To supply. The adsorptive deodorant material 28 dropped on the bottom portion 40 is taken out from the take-out port 42.

Engaging members 43 are provided on both the left and right sides of each net rack 31 and inside the outer case 26 so that the slanted net racks 31 can be correctly returned to the horizontal row as shown in FIG. It is attached so that it does not rotate to the right from the position shown in FIG. 44 is the exhaust port 3 of the chemical deodorizing tower 24.
It is a stack connected to 0.

FIG. 10 shows a connecting portion between the suction pipe 4 of the suction fan 3 and the waste storage relay tank 1, which is normally the suction pipe 4.
Is connected vertically to the waste storage relay tank 1, but if it is left as it is, the pests generated in the waste storage relay tank 1 may crawl up inside the suction pipe 4, and pests may be generated in unexpected places. .. Therefore, in the present application, the iron pipe 45 is provided at the connection portion between the suction pipe 4 and the waste storage relay tank 1, and the heating element 46 is wound around the outer circumference of the iron pipe 45 to heat the iron pipe 45, whereby the iron pipe 45 is heated. It is constructed so that no pests will climb up from 45 to the upper part.

The human waste collected in the filth storage relay tank 1 is collected by the large vacuum car 47. At this time, a large amount of odorous gas is released from the exhaust pipe 48 of the vacuum car 47, which causes environmental problems. May be. Therefore, in the present invention, the branch pipe 49 is branched from the suction pipe 4 of the suction fan 3 through the valve 53, and the branch pipe 49
The flexible swing arm tube 50 is attached to the tip of the swing arm tube 50, and the vacuum car 4 is attached to the tip of the swing arm tube 50.
Hood-shaped cap 51 that fits snugly into the exhaust stack 48 of 7.
When collecting the human waste by the vacuum car 47, the cap 51 is put on the exhaust pipe 48, and the exhaust pipe 48 is attached.
All the odorous gas discharged from the suction fan 3 is sucked through the branch pipe 49.

In the above, the above-mentioned facilities are housed in one house 52, and the vacuum car 47 for collecting human waste stored in the waste storage relay tank 1 also has a house 52 through the gate.
The human waste in the waste storage relay tank 1 is pumped out in the state of being put inside.

[0018]

The human waste collected from ordinary households, public toilets, hotels, etc. by the small vacuum car is temporarily stored in the waste storage tank 1 and is collected by the large vacuum car 47 at any time and conveyed to the human waste treatment facility.

The odorous gas generated during the temporary storage is constantly sucked by the suction fan 3 through the suction pipe 4, and the exhaust pipe 6
Through the chemical cleaning machine 7 to the chemical deodorizing tower 8. In the chemical liquid deodorization tower 8, the odorous gas passes from the lower inlet port 18 through the through holes 17 of the plurality of horizontal straightening plates 16 to the upper outlet port 1.
9, the chemical solution 10 circulated by the pump 11 is sprayed downward from the spray nozzle 15 on the upper side, and the chemical solution 10 has a narrow through hole 1 as shown in FIG.
Since the gas blows up where it falls through 7, the offensive odor component of the gas is often dissolved in the chemical liquid 10, and the chemical liquid 10 is mainly vinegar oil and deodorizes considerably.

The gas thus deodorized by the chemical solution reaches the mist separator 22 from the exhaust port 19 through the connecting pipe 21, and here, the residual water content in the gas (chemical solution 10)
Is separated, and the gas component is discharged through the connecting pipe 23 to the chemical deodorizing tower 2
Sent to 4. In the chemical deodorization tower 24, gas enters through the inlet 29 at the lower position, and the outer case 2 of the chemical deodorization tower 24
Adsorption deodorizing material 28 ascended in 6 and accumulated on rack 27
After being deodorized by, the gas is exhausted from the upper exhaust port 30. When the adsorption deodorizing material 28 of the chemical deodorizing tower 24 is deteriorated (when the odor concentration from the exhaust port 30 exceeds a predetermined value or when a predetermined working time is exceeded), first, the rack 27 of the lower stage is The cylinder 36 is operated to rotate the three arms 35 connected to each other by the connecting rod 39, whereby the three rotation shafts 33 fixed to the arms 35 are rotated counterclockwise in FIG. Net rack 31
Is slanted, and the lower stage adsorption / deodorant material 28 is dropped onto the bottom portion 40 of the outer case 26 through the gap created by the slanting, taken out from the outlet 42, the cylinder 36 is returned, and the three racks 31 of the lower rack 27 are removed. Restore horizontally.

Then, by the same operation, the adsorbing deodorant material 28 of the upper rack 27 is dropped, and the lower rack 27 is dropped.
In the upper rack 27, which has been accumulated and then returned to the horizontal position, a new adsorption deodorizing material 2 is introduced from the window through hole 41 in the upper part of the outer case 26.
8 is supplied to fill and deposit. As a result, the adsorbed deodorizing material 28 in the chemical deodorizing tower 24 is deposited with the deteriorated adsorbing deodorizing material 28 in order from the bottom. Adsorption deodorant 2
Replacing 8 makes it extremely easy to use used deodorant material 28
Only can be exchanged.

The human waste stored temporarily in the waste storage relay tank 1 is sucked and collected by placing a large vacuum car 47 in the house 52. At this time, conventionally, a gas flow containing a heavy odorous component may be released from the exhaust stack 48 of the vacuum car 47 by stirring with human waste, which may deteriorate the environment. A hood-shaped cap 51 provided at the tip of the swing arm pipe 50 is fitted into the exhaust pipe 48, and the exhaust pipe 48
A large amount of odorous gas discharged from the suction pipe 3 is sucked and collected by the suction fan 3 through the branch pipe 49, and can be deodorized similarly to the odorous gas in the waste storage relay tank 1. As a result, no odorous gas leaks to the outside when collecting human waste by the large vacuum car 47, and the environment can be kept good.

[0023]

As described above, according to the present invention, the waste storage relay tank 1 for storing waste such as human waste, the vacuum car 47 for recovering the waste in the waste storage relay tank 1, and the waste storage relay tank. 1. A suction fan 3 for sucking the odorous gas in 1 and a odorous gas sucked by the suction fan 3 to a chemical liquid 1 such as wood vinegar oil 1
0 and / or adsorption deodorizing material 2 such as activated carbon and zeolite
A deodorizing device for deodorizing by 8.
A branch pipe 49 is attached to the suction portion of the suction fan 3, and a cap 51 that can be fitted to the exhaust pipe 48 of the vacuum car 47 is attached to the tip end of the branch pipe 49 to prevent odorous gas diffusion in a waste storage facility. Therefore, the odor emitted from the exhaust pipe 48 of the vacuum car 47 can be sucked by the suction fan 3 without exception via the cap 51 and the branch pipe 49, and the sucked odor can be absorbed by the chemical solution 10 such as wood vinegar oil and / or the like. Since it can be deodorized by the adsorbing deodorizing material 28 such as activated carbon or zeolite, pollution due to bad odor is prevented.

[Brief description of drawings]

FIG. 1 is an overall plan view.

FIG. 2 is a partially longitudinal front view.

FIG. 3 is a vertical sectional side view of the chemical cleaning machine.

FIG. 4 is an explanatory view of a deodorizing action.

FIG. 5 is a vertical sectional side view of the chemical deodorizing tower.

FIG. 6 is a cross-sectional plan view of the chemical deodorizing tower.

FIG. 7 is a side view of the rack tilting mechanism.

FIG. 8 is a vertical sectional side view of the rack.

FIG. 9 is an explanatory view showing a state of collecting human waste by a large vacuum car.

FIG. 10 is an enlarged sectional view of an essential part.

[Explanation of symbols]

1 ... Waste storage relay tank, 2 ... Pedestal, 3 ... Suction fan, 4 ...
Suction pipe, 5 ... Manhole, 6 ... Exhaust pipe, 7 ... Chemical cleaning machine, 8 ... Chemical deodorizing tower, 9 ... Chemical tank, 10 ... Chemical solution, 1
1 ... Pump, 12 ... Suction port, 13 ... Vertical tube, 14 ... Horizontal tube,
15 ... Spray nozzle, 16 ... Horizontal straightening plate, 17 ... Through hole, 18 ... Inlet port, 19 ... Exhaust port, 20 ... Drain pipe, 2
1 ... Communication pipe, 22 ... Mist separator, 23 ... Communication pipe, 24
… Chemicals deodorizing tower, 25… Drain pipe, 26… Outer case, 2
7 ... Rack, 28 ... Adsorption deodorant, 29 ... Air inlet, 30 ...
Exhaust port, 31 ... Mesh rack, 32 ... Reinforcing rib, 33 ... Rotating shaft,
34 ... One end side, 35 ... Arm, 36 ... Cylinder, 37 ...
Bracket, 38 ... piston, 39 ... connecting rod, 40 ... bottom part, 41 ... window through hole, 42 ... take-out port, 43 ... engaging member,
44 ... Exhaust pipe, 45 ... Iron pipe, 46 ... Heating element, 47 ... Vacuum car, 48 ... Exhaust pipe, 49 ... Branch pipe, 50 ... Swing arm pipe, 51 ... Cap, 52 ... House, 53 ... Valve.

Claims (1)

[Claims] 1. A waste storage relay tank 1 for storing waste such as human waste, a vacuum car 47 for collecting the waste in the waste storage relay tank 1, and a suction for sucking odorous gas in the waste storage relay tank 1. The fan 3 and the odorous gas sucked by the suction fan 3 are used as a chemical liquid 10 such as wood vinegar oil and / or activated carbon.
A deodorizing device for deodorizing with an adsorption deodorizing material 28 such as zeolite. A branch pipe 49 is attached to the suction part of the suction fan 3, and an exhaust pipe of the vacuum car 47 is attached to the tip of the branch pipe 49. A device for preventing odorous gas diffusion in a filth storage facility, in which a cap 51 that can be fitted to 48 is attached.