JP2001212543A - Garbage disposal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a garbage disposal device which collects and detoxifies gases generating from garbage and containing malodors and harmful molecules and. SOLUTION: Above a garbage treating part 12 decomposing the garbage by heat and agitation, a treating part 20 for the gases generating from the garbage is provided. The treating part 20 comprises a treating chamber 21 having an introducing part 22 for the gases G generating from the garbage and a discharge part 23 for treated liquid matters L, a cooling device 25 cooling the gases generating from the garbage to liquefy, a photocatalyst reaction member 30 placed in the above treating chamber, having a titanium oxide layer having photocatalyst activity for allowing the above liquid to adhere thereon and, a and a UV radiating device 35 irradiating the above photocatalyst reaction member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a garbage processing apparatus, and more particularly to a garbage processing apparatus having a processing unit for processing odor or harmful gas generated from garbage.

[0002]

2. Description of the Related Art For example, in a commercial garbage disposer or the like, a fermentation type process in which garbage is decomposed by microorganisms into an organic fertilizer or a special fertilizer for soil improvement, or a raw garbage such as sawdust or coffee cake is used. A system such as a disintegration type treatment in which the mixture is mixed with a bacterial bed and decomposed into water and carbon dioxide gas is employed. However, in the conventional garbage processing machine, no consideration is given to the treatment of odors and harmful gases generated during the treatment.

[0003] In a conventional commercial garbage disposer, putrefactive bacteria and fermentative bacteria are mixed without being distinguished. The promotion of the proliferation of spoilage bacteria may also proceed at the same time, and non-pathogenic bacteria may change into a growth environment for pathogenic bacteria. In particular, a growth gene such as Escherichia coli is simply recombined and has a high growth rate. If Escherichia coli O157 starts to proliferate by mixing with these spoilage bacteria, there is a considerable possibility that the entire processing machine will be contaminated.

Further, in these garbage disposal machines, heat stirring is generally performed, and the above-mentioned odorous or harmful molecules are included as floating bacteria in water vapor generated at the time of the heat stirring, so that odorous gas or harmful gas is contained in the atmosphere. It is released as waste or discharged as sewage. Needless to say, this causes environmental pollution.

[0005]

Therefore, the present inventor has proposed:
It proposes a garbage disposal device that collects and detoxifies garbage generated gas containing such odors or harmful molecules, thereby preventing environmental pollution and reducing contamination of the garbage disposal machine itself. It is intended to prevent and further increase the processing efficiency.

[0006]

That is, according to the first aspect of the present invention, a garbage generating gas processing section having the following structure is disposed above a garbage processing section which decomposes garbage by heat and stirring. A garbage disposal apparatus characterized by the above. A processing chamber having a garbage generating gas introduction section and a processing liquid material discharge section, a cooling device for cooling and liquefying the garbage generating gas introduced into the processing chamber from the introduction section; A garbage generating gas processing unit having a photocatalytic reaction member disposed in a processing chamber and having a photocatalytically active titanium oxide layer to which the liquid material adheres, and an ultraviolet irradiation device for irradiating the photocatalytic reaction member .

According to a second aspect of the present invention, there is provided the garbage disposal apparatus according to the first aspect, wherein the photocatalytic reaction member is coated with an anatase type titanium oxide powder having excellent crystallinity after anodizing a titanium material. According to.

Further, the invention of claim 3 relates to the garbage processing apparatus according to claim 1 or 2, wherein a suction fan for sucking gas in the garbage processing apparatus is arranged in the processing chamber.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall vertical sectional view of a garbage processing apparatus showing an embodiment of the present invention, and FIG. 2 is an enlarged sectional view of a garbage generating gas processing section.

The illustrated garbage processing apparatus 10 is for business use as described above, and is provided above a garbage processing section 12 for decomposing garbage by heat and stirring. This is characterized in that the unit 20 is arranged. In the figure, reference numeral 11 denotes the garbage processing apparatus 1
0 represents a casing.

The garbage processing section 12 is a known section for decomposing garbage by heat and agitation, and may be any of the above-described fermentation-type processing and fractional elimination-type processing. Above the garbage processing section 12, a garbage generating gas processing section 20 is provided. The garbage generated gas processing unit 20 is disposed above the garbage processing unit 12 in order to easily collect gas generated from the garbage, and may be inside the casing 11. , May be external.

The garbage generated gas processing section 20 includes a processing chamber 21, a cooling device 25, a photocatalytic reaction member 30, and an ultraviolet irradiation device 35. The processing chamber 21 has a garbage generating gas introduction unit 22 and a processing liquid material discharge unit 23. The processing chamber 21 of the embodiment is formed of a stainless steel box, and the gas introduction unit 22 is formed of a window. In addition, the discharge part 23 for the treated liquid is formed of a drain hole 23a formed on the opposite side, which is separated from the gas introduction part 22. Reference numeral 23b denotes a drain pipe, and reference numeral 24 denotes a step of the discharge unit 23.

The cooling device 25 is a device for cooling and liquefying the garbage generating gas introduced into the processing chamber 21 from the introduction section 22. In this embodiment, a cooling coil 25a and a cooler 25b are arranged near the gas inlet 22. The garbage generating gas G heated and heated by the garbage processing section 12 is introduced into the chamber 21 from the gas introduction section 22, and a temperature difference is generated by cooling of the cooling device 25, resulting in a high humidity state and dew condensation. Liquefied.

The photocatalytic reaction member 30 is provided in the processing chamber 21 and has a titanium oxide layer having photocatalytic activity to which the liquid material L adheres. The photocatalytic reaction member 30 is a publicly known one, and is made of a metal plate of titanium oxide or a titanium oxide alloy, and causes a liquid L condensed with the garbage generating gas G to adhere to generate a photocatalytic reaction.

The photocatalytic reaction member 30 includes:
As defined in the second aspect of the present invention, it is preferable that the titanium material is coated with an anatase type titanium oxide powder having excellent crystallinity after anodizing the titanium material. This is commercially available as, for example, high-performance antibacterial titanium “SPARKT” (trade name of Kobe Steel Ltd.).

The ultraviolet irradiation device 35 irradiates the photocatalytic reaction member 30 and is a known lamp which is commercially available as a photocatalytic reaction excitation lamp.

[0017] In addition to the above components, the provision of a suction fan 40 for sucking the gas G in the garbage processing apparatus in the processing chamber as defined in the third aspect of the present invention can produce garbage. This is preferable for efficiently collecting the gas G.

Further, as shown in the embodiment, a partition plate 45 is provided in the chamber 21 so that the liquid L is temporarily removed in order to effectively perform the photocatalytic reaction of the liquid L of the garbage generating gas G. May be stored. In the embodiment, a partition plate 45 having a height of 2 cm is provided substantially at the center of the chamber 21 so that the gas introduction section side space 21A and the discharge section side space 2 are provided.
1B, the liquid L is temporarily retained in the gas inlet side space 21A to perform a photocatalytic reaction, and the liquid L overflowing the partition plate 45 is further discharged.
A photocatalytic reaction is performed in B. In the embodiment, since the step portion 24 is provided in the discharge portion 23, the treated liquid material flows out of the drain portion 23b through the step portion 24.

According to the present invention, as described above, the garbage generating gas is introduced into the processing chamber, cooled and liquefied,
Since the liquid material is decomposed by photocatalytic reaction, putrefactive odor molecules and suspended bacteria contained in the garbage generated gas are oxidatively decomposed, made odorless and harmless, and discharged outside. .

[0020]

As described above, according to the garbage processing apparatus of the present invention, the gas containing malodorous or harmful molecules as floating bacteria in water vapor, which is generated with the processing of garbage by thermal stirring. It is possible to collect and detoxify the harmful gas, thereby preventing the odorous gas or harmful gas from being emitted into the atmosphere or being discharged as sewage, thereby preventing environmental pollution. At the same time
It is possible to prevent contamination of the garbage processing machine itself, and further increase the processing efficiency.

[Brief description of the drawings]

FIG. 1 is an overall vertical sectional view of a garbage disposal apparatus showing an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a garbage generated gas processing unit.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 garbage disposal device 11 casing 12 garbage disposal unit 20 garbage generation gas processing unit 21 processing chamber 22 introduction unit 23 discharge unit 25 cooling device 30 photocatalytic reaction member 35 ultraviolet irradiation device 40 suction fan G garbage generation gas L liquid

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/32 B01D 53/36 HF term (Reference) 4D004 AA03 CA15 CA18 CA32 CA43 CA46 CA48 CB31 CB43 CC09 4D037 AA15 AB03 AB04 BA18 BB06 CA07 4D048 AA22 AB01 AB03 BA07X BA41X BB03 CA07 CA08 CC38 CC51 CD10 DA01 DA06 EA01 4D050 AA12 AB04 AB06 BC06 BC09 CA17 4G069 AA03 BA04B BA48A CA04 CA07 CA10 CA17 DA06 EA11

Claims (3)

[Claims] 1. A garbage processing apparatus, wherein a garbage generating gas processing section having the following configuration is disposed above a garbage processing section that decomposes garbage by heat and stirring. A processing chamber having an introduction section for the garbage generating gas and a discharge section for the processing liquid, a cooling device for cooling and liquefying the garbage generating gas introduced into the processing chamber from the introduction section; A garbage generating gas processing unit having a photocatalytic reaction member disposed in a processing chamber and having a photocatalytically active titanium oxide layer to which the liquid material adheres, and an ultraviolet irradiation device for irradiating the photocatalytic reaction member . 2. The garbage disposal apparatus according to claim 1, wherein the photocatalytic reaction member is obtained by anodizing a titanium material and then coating the crystallized anatase type titanium oxide powder. 3. The garbage processing apparatus according to claim 1, wherein a suction fan for sucking gas in the garbage processing apparatus is arranged in the processing chamber.