JP2811374B2 - Garbage disposal method and apparatus - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a hotel, a restaurant,
The present invention relates to a method and an apparatus for treating garbage discharged from kitchens such as hospitals and lunch centers.

[0002]

2. Description of the Related Art Conventionally, garbage discharged from kitchens such as hotels,
It is loaded in a plastic bucket, drum, etc., and is manually transported using an elevator or stairs.

In a building having a kitchen at a plurality of locations, a method of transporting kitchen waste as a crushed slurry by a vortex pump or the like has been adopted. However, there is a problem with the concentration of waste water in the slurry, particularly the high BOD value. Is leaving.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned conventional drawbacks and to save labor and improve workability in the treatment of kitchen waste, a sanitary and comfortable working environment, prevention of deterioration of discharged water quality, and water treatment. The goal is to reduce the load on equipment.

[0005]

SUMMARY OF THE INVENTION In a method for treating garbage according to the present invention, garbage is charged and water is injected into a garbage charging hopper which is conducted into a receiver tank through a solid-liquid conveying pipe. The suction port of the vacuum pump is conducted to the upper part, and the garbage and the injection water are sucked into the receiver tank which has been set to the negative pressure by the suction action, and when the suction amount reaches a predetermined value, the garbage charging hopper to the receiver tank. In addition to closing the transport pipeline, the discharge port of the vacuum pump was conducted to the lower part in the receiver tank, and the exhaust function caused mixed convection between the solid component that had settled downward and the liquid component that had accumulated above. Thereafter, the conduction state between the suction port of the vacuum pump and the upper part in the receiver tank is closed, and the discharge pipe from the lower part in the receiver tank to the inside of the solid-liquid separation device is made conductive. The discharge port of the vacuum pump is made conductive, and the solid-liquid mixture in the receiver tank is transferred into the solid-liquid separator by the jet action of the exhaust, and the liquid component extracted by the solid-liquid separator and the remaining solid component Are discharged separately from each other.

Further, in the garbage disposal apparatus according to the present invention, the extension end of the transfer conduit extended from the lower part of the garbage charging hopper having a water injection nozzle disposed on the inner peripheral part through an opening / closing bubble is provided. An opening is formed in the upper part of the receiver tank, a starting end of the discharge conduit is opened in a lower part of the receiver tank, and an opening / closing valve is attached to each of the transport conduit and the discharge conduit, and a vacuum is provided outside the receiver tank. The suction pipe of the pump opens to the atmosphere and the ventilation pipe whose extension end opens to the upper part of the receiver tank branches out and opens and closes the suction pipe and the ventilation pipe respectively. A valve is attached, an exhaust pipe is extended from the exhaust port of the vacuum pump, and its extending end is opened into the exhaust conduit, and
The end of the discharge conduit that joins the exhaust pipe is opened into the solid-liquid separator.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments will be described below with reference to the drawings.

1 is a water injection nozzle 2 # 2 along the inner periphery of the upper edge.
Garbage input hopper with 3 garbage input hoppers 1
, Which extends from a lower portion of the receiver tank 4, and has a spreading end portion 3 b which is open to an upper portion in the receiver tank 4. Reference numeral 5 denotes an opening / closing valve attached to the starting end opening 3a of the conveying pipeline 3, reference numeral 6 denotes an opening / closing valve attached to the lower part of the garbage charging hopper 1, and reference numeral 7 denotes an opening / closing valve near the extending end 3b of the conveying pipeline 3. Open / close valve. Reference numeral 8 denotes a discharge pipe having a start end 8a opened to a lower part of the receiver tank 4,
The extension end portion 8b is opened into the solid-liquid separation device 9. Reference numeral 10 denotes an opening / closing valve provided near the start end 8a of the discharge conduit 8, and when this valve is opened, the discharge conduit from the lower part in the receiver tank 4 to the solid-liquid separator 9 is conducted. Reference numeral 11 denotes a vacuum pump provided outside the receiver tank 4, 11a denotes an intake port thereof, and 11b denotes an exhaust port. From an intake port 11a of the vacuum pump 11, an intake pipe 12 opened to the atmosphere and a ventilation pipe 13 whose extension end 13b is opened to an upper part in the receiver tank 4 are branched out. . 14 is an open / close valve attached to the intake pipe 12, 15 is an open / close valve attached to the ventilation pipe 13, 1
Reference numeral 6 denotes a filter tank interposed between the intake port 11a and the opening / closing valve 15. Exhaust port 11 of vacuum pump 11
b from the two exhaust pipes 1 through the gas-liquid separation tank 17.
The opening and closing valve 20 is attached to one of the exhaust pipes 18 so that the extending end 18b of the exhaust pipe 18 is opened toward the upper part of the receiver tank 4. It may be led out from the middle of the other exhaust pipe 19. Also, since the extension end 19b of the other exhaust pipe 19 is inserted into the discharge conduit 8, its opening diameter is naturally smaller than the diameter of the discharge conduit 8, and the air passing therethrough allows the air to enter the discharge conduit 8. Produces a jet effect, but the effect can be further enhanced by forming the extending end portion 19b into a nozzle shape and opening it into the discharge conduit 8. In this way, the end portion 8b of the discharge conduit 8, which joins with the exhaust pipe 19, serves as a stock solution supply port into the solid-liquid separation device 9. Reference numeral 21 denotes an outlet for the liquid extracted in the solid-liquid separator 9, reference numeral 22 denotes an outlet for the remaining solid from which the liquid has been extracted, and reference numeral 23 denotes a temporary storage of the solid discharged from the outlet 22. Storage tank. Reference numeral 24 denotes an opening / closing valve attached to the gas-liquid separation tank 17.

In carrying out the present invention, first, as a preparation step, an opening / closing valve 6 immediately below the kitchen hopper 1, an opening / closing valve 10 immediately below the receiver tank 4, an opening / closing valve 15 for the ventilation pipe 13, and an opening / closing valve 20 for the exhaust pipe 18. Is closed and the vacuum pump 1 is opened with the open / close valve 14 of the intake pipe 12 opened.
1 is started, the air is sucked from the suction pipe 12, and is passed through the gas-liquid separation tank 17 to the exhaust pipe 19 and the discharge pipe 8. Then, the opening / closing valve 14 of the suction pipe 12 is closed, and the starting end of the transfer pipe 3 is started. The opening / closing valve 5 attached to the opening 3a, the opening / closing valve 7 of the conveying pipe 3 and the opening / closing valve 15 of the ventilation pipe 13 are opened, and the air sucked from the starting end opening 3a is passed through the conveying pipe 3 to the receiver tank. Suction into 4.

Next, as a process of sucking the garbage, the open / close valve 6 is opened and the garbage is charged into the garbage input hopper 1 with the open / close valve 5 closed, and at the same time, the water injection nozzle 2 ‥‥ is used.
2 and the shouting is started. Garbage input hopper 1
The garbage introduced into the inside is sent into the receiver tank 4 through the conveying pipe 3 together with the injection water. When the garbage is stored up to a predetermined level in the receiver tank 4 together with the injection water, the opening and closing valve 10 is opened while the opening and closing valves 6 and 7 are closed and the vacuum pump 11 is continuously driven, as a precedent step of discharge. Since the inside of the chamber 4 has a negative pressure, mixed convection of the solid component that has settled downward and the liquid component that has accumulated above is performed, so that a state where the solid-liquid mixture can be easily discharged is formed.

From this state, the process proceeds to the next discharging step.
The on-off valve 7, the on-off valve 15 on the ventilation pipe 13 and the on-off valve 24 on the gas-liquid separation tank 17 are closed, the on-off valve 10 directly below the receiver tank 4, the on-off valve 14 on the intake pipe 12, and the on-off valve 20 on the exhaust pipe 18. Is opened, and the leading end portion 19b of the exhaust pipe 19 is provided in the discharge conduit 8.
As a result, the discharge pressure of the vacuum pump 11 acts in the receiver tank 4 by the exhaust pipe 18, and the suction force from the discharge pipe 8 by the jet action and the pressing action from the exhaust pipe 18 are generated. Causes a strong solid-liquid discharge action, and the solid-liquid mixture in the receiver tank 4 is transferred into the solid-liquid separation device 9 through the discharge conduit 8, and the liquid separated and extracted by the solid-liquid separation device 9 The liquid is discharged from the liquid outlet 21 and subjected to water treatment by a batch intermittent aeration method or the like, and then discharged. The remaining solid is discharged from the solid discharge port 22 and temporarily stored in the storage tank 23. The stored solids are loaded and carried out on a transport vehicle in a timely manner.

[0012]

According to the present invention, the introduced garbage is sucked by the wind pressure together with the shower water, so that it can be prevented from adhering to the garbage charging hopper and the transport pipe, and the garbage can be transported without breaking its shape. Because it is always under negative pressure, it does not generate odor in the kitchen. In addition, since there is no movable portion in the transport pipeline, smooth transport can be performed without entanglement or clogging. After the garbage and shower water are sucked, the solids that have settled downward and the liquid that has accumulated above in the receiver tank are mixed and convected, and then discharged. There is no danger that the discharge port will be blocked by this, and the solid-liquid discharge is performed smoothly, and the workability is extremely excellent. Also, unlike the slurry pumping method generally used, kitchen garbage does not need to be crushed by a crusher or the like.
There is an advantage that the concentration can be kept low and the load on the water treatment facility can be reduced.

[Brief description of the drawings]

 The drawing is a schematic diagram of a pipeline in the apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Garbage input hopper 2 Water injection nozzle 3 Conveying line 3b Spreading terminal 4 Receiver tank 6 Opening / closing valve 7 Opening / closing valve 8 Discharge conduit 8a Starting end 8b Spreading end 9 Solid-liquid separation device 10 Opening / closing valve 11 Vacuum pump 11a Inlet 11b Exhaust port 12 Intake pipe 13 Ventilation pipe 13b Extension end 14 Open / close valve 15 Open / close valve 19 Exhaust pipe 19b Extension end

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-53-31374 (JP, A) JP-A 62-153206 (JP, U) JP-A 57-37903 (JP, U) JP-A 57-37903 103904 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B65F 5/00 101 B65G 53/26

Claims (2)

(57) [Claims] 1. A garbage is charged and water is injected into a garbage charging hopper which has been conducted into a receiver tank through a solid-liquid conveying pipe, and a suction port of a vacuum pump is conducted to an upper portion to suction the garbage. The above-mentioned garbage and infused water are sucked into the receiver tank which has been set to a negative pressure by the action, and when the suction amount reaches a predetermined value, the transfer pipeline from the garbage charging hopper to the receiver tank is closed, and the lower part of the receiver tank is lowered. After the discharge port of the vacuum pump is conducted to the section and the exhaust action causes mixed convection between the solid component that has settled down and the liquid component that has accumulated above, the suction port of the vacuum pump and the upper part in the receiver tank Is closed, the discharge line from the lower part in the receiver tank to the solid-liquid separator is connected, the discharge port of the vacuum pump is connected to the discharge line, and the exhaust gas is discharged. The solid-liquid mixture in the receiver tank is transferred into the solid-liquid separator by the cut-out action, and the liquid component extracted by the solid-liquid separator and the remaining solid component are discharged separately. Garbage disposal method. 2. A transfer pipe (3) extended from a lower part of a garbage charging hopper (1) having a water injection nozzle (2 ‥‥ 2) disposed on an inner peripheral part thereof through an opening / closing valve (6). The extension end (3b) is opened at the upper part in the receiver tank (4), and the lower end of the receiver tank (4) is opened at the start end (8a) of the discharge conduit (8). Opening / closing valves (7, 10) are attached to (3) and the discharge conduit (8), respectively, and are opened to the atmosphere from the suction port (11a) of a vacuum pump (11) provided outside the receiver tank (4). Suction pipe (12) and the extension end (13
b) branches out the ventilation pipe (13) opened at the upper part in the receiver tank (4), and opens and closes the open / close valve (1) to the intake pipe (12) and the ventilation pipe (13), respectively.
4, 15), and the exhaust port (1) of the vacuum pump (11)
1b), an exhaust pipe (19) is extended from its extension end (1).
9b) is opened into the discharge conduit (8), and the terminal end (8b) of the discharge conduit (8) which joins the exhaust pipe (19) is opened into the solid-liquid separation device (9). Garbage disposal equipment characterized.