JP2961877B2 - Garbage processing equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a general household garbage disposal apparatus, and more particularly to an apparatus for treating garbage crushed by a disposer.

2. Description of the Related Art The pressure flotation method is a solid-liquid separation means widely used in industry. This creates pressurized water by dissolving air in water under pressure,
The microbubbles generated by reducing the pressure of the pressurized water are caused to adhere to the suspended solids in the water, and the suspended solids float and separate on the water surface of the water tank. This method has the function of supplying oxygen into the water together with the solid-liquid separation, and is advantageous for the bio-oxidation treatment of organic waste or wastewater. Attempts have been made to apply it to a garbage disposal system for the purpose of weight reduction by bio-oxidation and purification by bio-oxidation of water after separating shredded garbage.

Problems to be Solved by the Invention In such a kitchen waste treatment apparatus, the dissolution of air into water during the process of making pressurized water is slow, so that the pressurized tank that receives air and water and pressurizes becomes large, and household I was forced to be unsuitable. In addition, there is a problem that the ratio of water to air during the production of pressurized water cannot be controlled.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to provide a kitchen waste treatment apparatus capable of reducing the size of a pressurized tank and controlling the ratio of air to water when producing pressurized water.

Means for solving the problem The garbage disposal device of the present invention, in order to achieve the above object,
A water tank that oxidizes and decomposes the garbage crushed by the disposer, a water treatment device that treats the water after removing the garbage, and a pressurized water producing device that sends out pressurized water to the water tank, connected to a loop, comprising The apparatus includes a pressurized tank having a draft tube and a float therein, a water supply pump and a water supply pipe for supplying water to the pressurized tank, an air pump for supplying air into the pressurized tank from directly below the draft tube, and An air pipe having a check valve on the suction side of the air pump, a check valve having a valve in which the float is suspended, and the check valve in a pipe, and the air pipe is provided from above the pressurized tank. And a pressurized water pipe for sending out water from the pressurized tank via a pressure reducing valve.

Operation According to the present invention, the number of times of contact between air and water is increased by the above-described configuration, so that the rate of dissolution of air in water can be increased, so that the size of the pressurized water tank can be reduced. Further, the ratio of water and air, which are raw materials for producing pressurized water, can be controlled.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, kitchen waste crushed by a disposer 1 flows into a water tank 2. The water tank 2 is made by the pressurized water production device 3, and the water in which the air is dissolved is foamed by the reduced pressure and flows into the water tank 2. The microbubbles due to the foaming adhere to the crushed garbage, and the garbage having buoyancy is separated into the floating scum layer 5. Here, the garbage is oxidatively decomposed by microorganisms and reduced in weight. At this time, the microorganism consumes a large amount of oxygen, and this oxygen is mainly supplied by bubbles. The water from which the crushed kitchen waste has been removed flows into the water treatment device 6. Microorganisms adhering to the fixed bed 7 of the water treatment device 6 decompose organic pollutants dissolved in water. Then, the purified water is discharged from the water distribution pipe 9.
Oxygen consumed by microorganisms in this process is supplied by water having air dissolved to a saturated concentration even after foaming. In addition, a part of the water returns to the pressurized water producing device 3 through the water pipe 8, and becomes a raw material of the pressurized water. Air as a pressurized water raw material is supplied from an air pipe (not shown).

Thus, the water tank 2, the water treatment device 6, and the pressurized water production device 3 are connected to the loop, and the crushed garbage flows into the water tank 2 from the disposer 1.

FIG. 2 shows a pressurized water producing apparatus 3, in which a pressurized tank 10 is supplied with water as a raw material of pressurized water by a water supply pipe 1 shown at 8 in the first time.
5, supplied by water pump 14. Air as a raw material of pressurized water is supplied from the atmosphere by an air pipe 13 and an air pump 12. The pressure for producing pressurized water is applied by the water supply pump 14 and the air pump 12. Pressurized tank
Inside the 10, the pressurized water obtained by the gas-liquid contact is reduced in pressure by the pressure reducing valve 16 and foams, and flows into the water tank 2 through the pressurized water pipe 17.

The draft tube 11 faces directly above the air pipe 13, and the air pipe 13 is connected to the bottom of the pressurized tank 10 and is open.
With this draft tube 11, the air entrains water and rises inside the draft tube 11,
Since the convection movement of the water in 10 is promoted and the gas exchange at the water surface is accelerated, the residence time of the water in the pressurized tank can be shortened. Thereby, the pressurized water tank can be reduced in size.

The valve 18 of the check ring 20 suspends the float 19 and opens the check ring 20 when the level of the pressurized water in the pressurized tank 10 drops. Thereby, the gaseous phase air in the pressurized tank 10 returns to the air pipe 13 between the air pump 12 and the check valve 22 through the check valve 20 and the bypass pipe 21, and passes through the air pump 12 to the pressurized tank 10. A returning circulation airway is formed. Then, the gaseous air is discharged from immediately below the draft tube 11 and entrains water and rises inside the draft tube 11. By this operation, convection of water in the pressurized tank 10 is promoted, the number of times of contact between water and air is increased, and the dissolution speed of air is further increased, so that the pressurized tank 10 can be further miniaturized.

While the circulating air path is open, the supply of air from the atmosphere is stopped, and the water level in the pressurized tank 10 rises due to the supply of water by the water pump 14. When the check ring 20 is closed by the buoyancy of the float 19 due to the rise of the water surface, the circulating air passage is also closed, and the supply of air from the atmosphere starts again. In this way, the water surface in the pressurized tank 10 is kept substantially constant, and the raw material air is supplied without excess and shortage, so that the ratio of water to air can be controlled.

Effects of the Invention As is apparent from the above description of the embodiment, according to the present invention, the number of times of contact between air and water in the pressurized tank is increased by the configuration described in the claims. The rate of dissolution in water is faster, so the pressurized tank can be made smaller, and the check valve operates to supply air while keeping the water level almost constant, so the ratio of water to air must be controlled. Can be provided.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a kitchen waste treatment apparatus according to one embodiment of the present invention, and FIG. 2 is a configuration diagram of a pressurized water producing apparatus of the kitchen waste treatment apparatus. DESCRIPTION OF SYMBOLS 1 ... Disposer, 2 ... Water tank, 3 ... Pressurized water production apparatus, 6 ... Water treatment apparatus, 10 ... Pressurized tank, 11 ...
Draft tube, 12… Air pump, 13… Air piping, 14… Water supply pump, 15… Water supply piping, 16… Pressure reducing valve, 17… Pressurized water piping, 18… Valve, 19… Float, 20 …
... check valve, 21 ... bypass piping, 22 ... check valve.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B09B 3/00-5/00 C02F 1/24 C02F 1/72-1/78 B01F 3/04 B03D 1/26

Claims (1)

(57) [Claims] 1. A loop comprising: a water tank for oxidizing and decomposing kitchen waste crushed by a disposer, a water treatment device for treating water after removing the kitchen waste, and a pressurized water producing device for sending pressurized water to the water tank. The pressurized water producing apparatus includes a pressurized tank having a draft tube and a float inside, a water supply pump and a water supply pipe for supplying water to the pressurized tank, and air in the pressurized tank from directly below the draft tube. An air pump for supplying air and an air pipe having a check valve on the suction side of the air pump; a check valve having a valve with the float suspended therefrom; and the pressurizing tank having the check valve in a pipeline. A bypass pipe extending from an upper portion between the air pump of the air pipe and the check valve;
And a pressurized water pipe for sending water from the pressurized tank through a pressure reducing valve.