TW201328796A - Organic waste treatment device - Google Patents

Abstract

[Problem] To provide an organic waste treatment device whereby gas generated during fermentation/decomposition treatment of organic waste is reused, and the odor of the gas is removed by combustion. [Solution] The present invention comprises: a combustion furnace provided with a burner for burning fuel and generating combustion gas; a heat exchanger for heating outside air using the combustion gas as a heat source; a treatment tank for stirring bacteria for fermentation with the organic waste, the heated outside air being fed to the treatment tank; a circulation blower for feeding the outside air heated by the heat exchanger into the treatment tank and circulating the air in the treatment tank; a combustion gas feeding unit provided with a means for feeding, to the combustion furnace, the odorous gas generated from the organic effluent as combustion gas for burning the fuel; and a heating unit for heating the treatment tank from the outside, the combustion gas generated in the combustion furnace being fed to the heating unit.

Description

Organic waste treatment plant

The present invention relates to a food waste treatment device, and more particularly to an organic waste treatment device using a fermentation cell.

In the conventional organic waste treatment device, the organic waste such as organic waste is put into the treatment tank, and the organic waste in the treatment tank is mixed with the fermentation bacteria by rotating the stirring blade. The hot air is blown out from the stirring blade into the treatment tank to evaporate water from the organic waste, and the appropriate temperature and humidity are imparted to the organic waste, thereby ensuring efficient fermentation and promoting the fermentation decomposition of the organic waste.

However, in the above-described organic waste treatment device, the structure is such that the exhaust gas sent from the processor is directly discharged to the outside, and there is a problem that the odor of the exhaust gas is scattered to the outside, and it is necessary to provide an addition to the treatment device. Stinky device.

Therefore, an organic waste treatment device (refer to Patent Document 1) is provided, and a hot air generator and a hot air circulation air supply means are provided, and the hot air generator sends hot air toward the object to be treated in the treatment tank; The circulating air blowing means of the hot air dehumidifies the humid hot air in the processing tank, and does not discharge the dehumidified air to the outside of the casing, and returns it to the hot air generator, and sends it again from the hot air generator to the hot air generator. Processing tank.

[Previous Technical Literature] [Patent Document]

Patent Document 1: Japanese Laid-Open Patent Publication No. 2002-239514

However, the organic waste treatment device proposed in the above-mentioned Patent Document 1 is a circulating air supply means for a treatment tank, a hot air generator, and a hot air, and is housed in a closable casing, and has a structure that causes a odor generated in the treatment tank. The gas is not released to the outside, and it is very difficult to circulate the hot air in a state of being completely blocked from the outside air, and the odor must leak to the outside, so a deodorizing device for deodorizing is required.

In view of the above problems, the present inventors have provided an organic waste treatment apparatus capable of reusing the gas generated when the organic waste is subjected to fermentation decomposition treatment by the fermentation bacteria, and deodorizing by combustion of the burner. .

Therefore, the organic waste treatment apparatus according to the first aspect of the present invention includes a combustion furnace, a heat exchanger, a treatment tank, a circulation blower, a combustion gas supply unit, and a heating unit, and the combustion furnace includes a burner that combusts a fuel to generate a combustion gas; the heat exchanger heats the outside air using the combustion gas as a heat source; and the treatment tank is supplied with the heated outside air to feed the fermentation bacteria Agitating the body and the organic waste; the circulating air blower supplies the external air heated by the heat exchanger to the processing tank to circulate in the processing tank; and the combustion gas supply unit includes There is a means for supplying an odor gas generated from the organic product to the combustion furnace as a combustion gas for burning the fuel; and the heating portion is supplied to the combustion gas generated in the combustion furnace The treatment tank is heated from the outside.

In this configuration, the fuel of the main burner is not only ordinary kerosene, heavy oil, but also substitute fuel such as tempura oil or waste oil, and odor gas containing odor generated in the treatment tank is used as the combustion gas. It is ignited by a pilot burner.

According to a second aspect of the invention, the combustion gas supply unit further includes: a washing device for suppressing an odor of the odor gas; and a direction in which the flow path of the odor gas is switched to the combustion furnace or the washing a switching valve in the direction of the device; the flow path of the odor gas passing through the switching valve is switched in response to the combustion state of the combustion furnace.

According to a third aspect of the invention, the washing apparatus includes a cylindrical body in which a porous adsorbent is housed and has a mesh shape on the surface thereof, and a hollow frame body in which a plurality of the tubular bodies are attached, and the cylindrical body a driving mechanism that connects one end of the body to the plurality of cylindrical bodies and rotates in the circumferential direction, and a spraying device that supplies the cleaning liquid to the cylindrical body. According to a fourth aspect, the cleaning liquid is water. Or sodium hypochlorite solution.

According to the organic waste treatment apparatus of the present invention, the combustion gas of the main burner can be utilized as external heating of the treatment tank, or the external air heated by the heat exchanger can be circulated in the treatment tank for use in organic waste. Fermentation treatment, and the odor gas generated from the organic waste fermented in the treatment tank is heated by the heat exchanger and used together with the external gas circulating in the treatment tank to be used as the combustion gas of the main burner. The main burner has a deodorizing effect when burned.

The fuel of the main burner is not only varnish, heavy oil, but also alternative fuels such as tempura oil and waste oil.

Further, the flow path of the combustion gas can be changed by the switching valve, and even after the main burner is turned off, there is an effect that the combustion gas containing the odor gas can be deodorized by the washing device.

The washing apparatus includes a tubular body in which a porous adsorbent material containing a plurality of charcoal or the like is formed, and is connected to one end side of the tubular body, and the plurality of cylindrical bodies are coupled to each other to rotate in the circumferential direction. The drive mechanism and the spray device for supplying the cleaning liquid to the cylindrical body; and the effect of dispersing and deodorizing the odor gas by dispersing water or sodium hypochlorite solution by the spray device.

The following description is made with reference to the drawings showing embodiments of the present invention, and the present invention is not limited to the embodiment. Fig. 1 is a front elevational view showing an embodiment of the organic waste treating apparatus of the present invention. Fig. 2 is a plan explanatory view of Fig. 1. Figure 3 is a view from the direction of line A-A in Figure 2 Ming map. Fig. 4 is an explanatory view as seen from the direction of line B-B of Fig. 2; Fig. 5 is an explanatory view of the washing apparatus. Fig. 6 is an explanatory view of a cylindrical body. Figure 7 is a flow chart showing the gas flow path.

As shown in FIGS. 1 to 4 and 7, the organic waste treatment device 1 of the present invention is composed of a treatment tank 2 for treating organic waste, and is connected to the treatment tank 2, and is used for The heat exchanger 3 that supplies the heat energy required for the fermentation of the organic waste, the heat source having the heat exchanger 3, that is, the combustion furnace 4 of the combustion apparatus, and the odor containing the odor generated in the treatment tank 2 The gas is supplied to the combustion gas supply unit 5 of the combustion apparatus.

As shown in FIG. 1 and FIG. 2, the treatment tank 2 is a hollow tank having an inlet port 6 at the upper portion and a U-shaped side at the bottom of the surface, and can be used for organic waste, moisture adjusting material, and fermentation. The cells are introduced from the input port 6. In the longitudinal direction of the processing tank 2, a through shaft 7 and a drive motor 8 for rotating the through shaft 7 are connected; and the stirring screw (not shown) attached to the through shaft 7 is rotated to stir the organic Sex waste, moisture adjustment material, and fermentation bacteria. Then, the heated outside air is introduced by the heat exchanger 3 to be described later, and the organic waste, the moisture adjusting material, and the fermentation cells are heated at a predetermined temperature to promote the fermentation.

As shown in Fig. 3 and Fig. 4, a sleeve portion 9 for heating from the exterior portion of the treatment tank 2 is formed at the bottom of the treatment tank 2, and the hot air used in the heat exchanger 3 to be described later is circulated to be predetermined. The temperature is heated by the organic waste, the moisture adjusting material, and the fermentation cell which are put into the treatment tank 2. After the fermentation treatment, the cooked organic waste is used as an organic fertilizer or feed. The raw material is discharged from the discharge port 10 shown in Fig. 1 . Here, as the organic waste to be treated, for example, food waste, aquatic product processing waste, livestock urine, sludge, animal residue, etc., as the moisture adjusting material, rice bran, crushed rice hull, and the like are used. As the bacterial cells for fermentation, aerobic cells are used, that is, soil bacteria in the inner city. As shown in FIGS. 3 and 7, the casing exhaust fan 24 is connected to the casing portion 9 via a pipe, and after the operation is completed, hot air or odor remaining in the casing portion 9 can be removed from the casing. The inside of the tube portion 9 is discharged.

As shown in Fig. 4, the heat exchanger 3 is composed of a double cylindrical body, and is heated by the hot air sent from the combustion furnace 4 to the central cylindrical body 3a and sucked by the external air introduction fan 11. The outside air between the outer cylindrical body 3b and the central cylindrical body 3a exchanges heat, and the hot air that is transported into the central cylindrical body 3a for heat exchange is supplied to the above as shown in FIG. Casing portion 9. On the other hand, the outside air heated by the heat exchange between the outer cylindrical body 3b and the central cylindrical body 3a is sucked by the circulation blower 12 and supplied to the upper portion in the treatment tank 2, thereby disposing of the organic waste. The material, the moisture adjusting material, and the fermentation cell are heated.

The combustion furnace 4 has a combustion device composed of a pilot burner 13 and a main burner 14; the combustion furnace 4 is attached to a lower portion of the heat exchanger 3. The odor gas generated in the treatment tank 2 is supplied by a combustion gas supply unit 5 to be described later, and the fuel such as kerosene supplied from a fuel supply device (not shown) is burned. The pilot burner 13 is turned off after the main burner 14 is ignited. In addition to the fossil fuel, a fuel having a viscosity of 10 cp or less and a self-igniting tempura oil or waste oil having a heat of 7,000 Kcal or more may be used.

As shown in FIGS. 3 and 7, the combustion gas supply unit 5 is composed of an exhaust fan 15, a three-way valve 16, a washing device 17, and a pipe 18 that connects these structures, and a treatment tank. 2 and the burner 4 is connected. The odor gas generated from the organic waste fermented in the treatment tank 2 is heated by the heat exchanger 3, and is sucked by the exhaust fan 15 together with the outside air circulated in the treatment tank, via the three-way valve The main burner 14 supplied to the combustion furnace 4 is used as a combustion gas. When the combustion of the main burner 14 is stopped, the odor gas is switched toward the flow path of the main burner 14 by the three-way valve 16 to the washing device 17, and the dust containing the odor gas and the odor are removed and released. In the atmosphere.

As shown in Fig. 7, the organic waste treatment apparatus 1 of the present invention having the above-described structure is a heat source required for the fermentation treatment of the organic waste introduced into the treatment tank 2, and a heat exchanger is used. 3 clean outside air. On the other hand, the sleeve portion 9 formed in the outer casing of the treatment tank 2 circulates the hot air from the main burner 14 used for heat exchange, and heats the entire treatment tank 2 from the outside. By the heating from the inside and the outside of the treatment tank 2, the fermentation treatment of the input organic waste can be stably performed at any time.

Further, the odor gas generated from the organic waste fermentation-treated in the treatment tank 2 is heated by the heat exchanger 3 by the combustion gas supply unit 5, together with the external air circulated in the treatment tank. The combustion gas as the main burner 14 is burned in the combustion furnace 4 to deodorize, so that the odor does not diverge to the outside.

Next, according to the fifth to seventh figures, the organic waste of the present invention is The washing device 17 used in the waste disposal device 1 will be described.

As shown in FIGS. 5 and 6, the washing device 17 is provided with a gas inflow port (not shown) at a lower portion of the main body 19 formed of a hollow casing, and a gas discharge port is formed at the upper portion (not shown). In the center of the main body 19, a plurality of cylindrical bodies 20 having an opening formed in a mesh shape are attached to the center of the main body 19, and are driven in a circumferential direction by a driving device (not shown). A spray device is provided on the upper portion of the main body 19 to sprinkle water toward the cylindrical body 20.

As shown in Fig. 6, the cylindrical body 20 is filled with a plurality of charcoal 21, and has a mesh-like opening on the surface, so that the passage of the gas or the sprinkling of the spray device can be performed freely. The connecting pipe 22 connected to the above-described driving device is provided at one end side of the side surface, and is coupled to the rotation transmitting shaft 23 of the driving device to be rotatable in the circumferential direction. As a material of the cylindrical body, although it is desired to be rust-proof stainless steel, a reinforced plastic such as FRP may be used.

As shown in Fig. 7, the odor gas generated during the fermentation of the organic waste sucked by the exhaust fan 15 or the hot air or odor discharged by the jacket exhaust fan 24 passes through the three directions. The valve 16 is conveyed from the gas inflow port of the washing device 17 into the main body 19, and is discharged from the gas discharge port to the atmosphere while passing through the plurality of cylindrical bodies 20. At this time, as shown in Fig. 5, the plurality of cylindrical bodies 20 are rotated in the circumferential direction at any time, so that the contact area of the charcoal 21 in the cylindrical body 20 with the gas is changed, and by the spray device from the upper portion Sprinkle water to remove dust and odor components from the gas. The fallen water is temporarily stored in the receiving tank and is again pumped to the sprinkler for use. In the present embodiment, an example in which water is used may be used, and a sodium hypochlorite solution or the like may be used.

[Examples]

Next, an example of treatment of organic waste in the organic waste treatment apparatus of the present invention will be described.

(organic waste)

(moisture adjustment material)

Rice bran, crushed rice husk 650Kg

(fermentation bacteria)

Inner city soil bacteria 265g

(processing conditions)

(result)

The resulting product is a coarse powder having a moisture content of 15% or less, and can be used as a raw material for fertilizer or feed without causing malodor.

According to the organic waste treatment apparatus of the present invention, the combustion gas of the main burner is used as the external heating of the treatment tank, and the external air heated by the heat exchanger is circulated in the treatment tank for use in the organic waste. Fermentation treatment. The odor gas generated from the organic waste fermented in the treatment tank is reused as the combustion gas of the main burner together with the external air heated in the treatment tank, and can be removed when the main burner is burned. smelly. And the flow path of the combustion gas can be changed by the three-way valve even in the main combustion After the flame is extinguished, the gas containing the odor contained in the combustion gas can also be deodorized by the washing device. In the present embodiment, although the three-way valve is used to control the flow path of the odor gas, the flow path may be switched using, for example, a four-way valve or a five-way valve. In the fermentation treatment of organic waste, although the composite soil bacteria is used as the inner city soil bacteria, it is not limited, as long as it is a biochemical bacteria. Various modifications can be made without departing from the spirit of the invention.

1‧‧‧Organic waste treatment plant

2‧‧‧Processing tank

3‧‧‧ heat exchanger

3a‧‧‧Central cylindrical body

3b‧‧‧Outer cylindrical body

4‧‧‧ burning furnace

5‧‧‧Combustion gas supply unit

6‧‧‧ Input

7‧‧‧through shaft

8‧‧‧Drive motor

9‧‧‧ casing department

10‧‧‧Export

11‧‧‧External air introduction fan

12‧‧‧Circular blower

13‧‧‧Inflammable burner

14‧‧‧Main burner

15‧‧‧Exhaust fan

16‧‧‧Three-way valve

17‧‧‧Washing device

18‧‧‧Pipe

19‧‧‧ Subject

20‧‧‧Cylinder

21‧‧‧ charcoal

22‧‧‧Connected tube

23‧‧‧Rotating transmission axis

24‧‧‧ casing exhaust fan

Fig. 1 is a front elevational view showing an embodiment of the organic waste treating apparatus of the present invention.

Fig. 2 is a plan explanatory view of Fig. 1.

Fig. 3 is an explanatory view as seen from the direction of line A-A of Fig. 2;

Fig. 4 is an explanatory view as seen from the direction of line B-B of Fig. 2;

Fig. 5 is an explanatory view of the washing apparatus.

Fig. 6 is an explanatory view of a cylindrical body.

Figure 7 is a flow chart showing the gas flow path.

1‧‧‧Organic waste treatment plant

2‧‧‧Processing tank

3‧‧‧ heat exchanger

4‧‧‧ burning furnace

5‧‧‧Combustion gas supply unit

6‧‧‧ Input

7‧‧‧through shaft

8‧‧‧Drive motor

10‧‧‧Export

12‧‧‧Circular blower

16‧‧‧Three-way valve

Claims (4)

An organic waste treatment device is characterized in that: the organic waste is subjected to fermentation decomposition treatment by a fermentation cell, and is characterized in that: a combustion furnace, a heat exchanger, a treatment tank, a circulation blower, and a combustion gas are provided. a supply unit and a heating unit; the combustion furnace includes a burner that combusts fuel to generate combustion gas; the heat exchanger heats the outside air using the combustion gas as a heat source; and the treatment tank is supplied with the heated Agitating the fermentation cells and the organic waste by external air; the circulation blower supplies the external air heated by the heat exchanger to the treatment tank to circulate in the treatment tank The combustion gas supply unit is provided with means for supplying the odor gas generated from the organic product to the combustion furnace as a combustion gas for burning the fuel; the heating unit is supplied The combustion gas generated in the combustion furnace is heated from the outside by the processing tank. The organic waste treatment device according to the first aspect of the invention, wherein the combustion gas supply unit further includes: a washing device for suppressing an odor of the odor gas; and a flow path of the odor gas a switching valve that switches to the direction of the combustion furnace or the direction of the washing device; the flow path of the odor gas passing through the switching valve is in response to the above The combustion state of the burner is switched. The organic waste disposal apparatus according to the second aspect of the invention, wherein the washing apparatus includes a cylindrical body in which a porous adsorbent is housed and a surface is formed in a mesh shape, and a plurality of the tubular bodies are attached. The hollow frame of the body is connected to one end side of the cylindrical body, and a plurality of the cylindrical bodies are driven to rotate in the circumferential direction, and a spray device that supplies the cleaning liquid to the cylindrical body. The organic waste treatment device according to claim 3, wherein the cleaning solution is water or a sodium hypochlorite solution.