JPH01300116A - Waste disposal device - Google Patents

Abstract

PURPOSE:To prevent a catalyst from being damaged through local heating by a system wherein a catalyst temperature-judging means controls for maintaining a small air quantity and setting a selector valve on the preheating air side until a detected temperature reches a predetermined value, and operating a combustion furnace-energizing means by increasing the air quantity and switching the selector valve to the exhaust gas side when the predetermined temperature is reached. CONSTITUTION:When wastes 6 are placed into a disposal vessel 5 and disposal is started, a blower 8 is operated with a small air quantity by an air quantity-varying means 8a until a catalyst 12 is brought to an operating temperature thereof by a catalyst heater 11. A selector valve 15 is so set that intake air flows through apreheating air uct 14 into a clarifier 10 to preheat the catalyst 12. When the catalyst 12 reaches the operatiang temperature thereof, a heater 3 is energized by a heater- energizing means 3a to incinerate the wastes 6. The blower 8 is switched to a normal operation by the air quantity-varying means 8a, and an exhaust port 9 is opened, whereby air necessary for combustion of the wastes 6 is introduced into a combustion furnace. Gases generated upon combustion of the wastes 6 flow through the exhaust port 9 into the clarifier 10, in which the gases are clarified by the catalyst 12 already heated to the operating temperature, before being exhausted to the exterior.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a waste treatment device for reducing the amount of garbage generated at home, such as kitchen waste, by heating and incinerating it.

Conventional technology In general, garbage processing equipment includes those that incinerate waste using gas, those that crush waste and dispose of it into the sewer, and those that ferment and recycle waste, but all of them produce bad odors and only reduce the amount of waste.

Due to problems such as ease of installation, it was unsuitable for use in general households.

Therefore, the inventor of the present invention has considered a garbage disposal apparatus as shown in FIG. In the figure, a frame 1 having an openable/closeable lid 4 into which garbage 6 is thrown has a furnace material 2 on its inner wall surface. A heater 3 is provided at the inner bottom of the frame 1 and extends through the bottom of the frame 1 and projects into the frame 1. Above frame body 1. Furnace material 2.
The heater 3 and the lid 4 constitute a combustion furnace. Further, a processing container 6 having a protrusion 6a surrounding the heater 3 at the bottom is provided above the heater 3, and the lid 4
In this example, garbage 6 which is thrown into the processing container 6 by opening it is stored in the processing container 6. An opening 6b is provided in the protrusion 6a of the processing container 6 so that air for burning the waste 6 can flow therein.

Further, an air supply lower is opened at the bottom of the frame 1, and air necessary for combustion of the dirt 6 is allowed to flow in through the blower. Further, gas generated by combustion of the garbage 6 is led to the purifier 10 through an exhaust port 9 opened in the side wall.

The purifier 10 is composed of a catalyst heating heater 11 and a catalyst 12.

In the above configuration, when the waste 6 is put into the processing container 5 with the lid 4 opened and processing is started, the catalyst heating heater 11
Then, the blower 8 is energized and the catalyst 12 is preheated until it reaches its functional temperature. The purpose of this operation of the blower 8 is to prevent the heat of the catalyst heater 11 from being transmitted to a portion of the catalyst 12 in the vicinity and causing damage. When the catalyst 12 reaches its functional temperature, the heater 3 is energized and the waste 6 is incinerated. The exhaust gas generated by the combustion of the waste 6 is passed through the exhaust port 9 to the catalyst 1 in the purifier 10, which has already reached its functional temperature.
2, it was to be discharged outside after being purified.

Problems to be Solved by the Invention In such a conventional configuration, the supply air from the blower 8 is set at the amount of air necessary for combustion, so the catalyst 12 is cooled by this supply air and does not reach its functional temperature. It took a long time. Another problem is that the air supplied from the blower 8 passes through the waste 6, contains bad odor, and is led to the purifier 10 before the catalyst 12 reaches its functional temperature, causing the odor to be released to the outside.

The present invention solves the above-mentioned problems, and provides a waste treatment device that prevents the release of waste odor and efficiently raises the catalyst to its functional temperature before starting incineration.

Means for Solving the Problems In order to achieve the above object, the waste disposal apparatus of the present invention includes a combustion furnace for reducing waste by incineration, an air supply port for supplying air to the combustion furnace, and an air supply port for supplying air to the combustion furnace. A blower provided in communication with the blower, an air volume variable means provided on the blower, an exhaust port for exhausting exhaust gas in the combustion furnace, a heater for heating a catalyst, a catalyst, and a catalyst provided in communication with the exhaust port. A purifier comprising a temperature detection means, a preheating airway connecting the blower, the exhaust port, and the purifier, and a switch provided between the preheating airway and the exhaust port to switch the flow path of the preheated air and the exhaust gas. A valve, a catalyst temperature determination means for inputting the catalyst temperature detection means, a combustion furnace energization means for energizing the combustion furnace, and a catalyst heating heater energization/intermittent means for intermittent energization of the catalyst heating heater, The catalyst temperature determining means controls the air volume variable means at a small air volume until the detected temperature reaches a predetermined value, and switches the switching valve to the preheated air side, and when the detected temperature reaches a predetermined temperature, increases the air volume of the air volume variable means and closes the switching valve. It is configured to switch to the exhaust gas side and further operate the combustion furnace communication means.

Effect With the above configuration, until the catalyst reaches a predetermined functional temperature by the catalyst heating heater, air is supplied directly to the purifier through the preheating air path at a small air volume by the air volume variable means of the blower, and the catalyst is heated. When the catalyst temperature detection means detects that the functional temperature has been reached, the air volume variable means of the blower supplies air to the combustion furnace instead of the normal air volume, and the incineration heater is energized to start the incineration process. Become.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, a lid 4 that can be opened and closed is used to throw in garbage 6.
The frame body 1 has a furnace material 2 on its inner wall surface. A heater 3 is provided at the inner bottom of the frame 1 and extends through the bottom of the frame 1 and projects into the frame 1. Above frame body 1. The furnace material 2 and the lid 4 constitute a combustion furnace. Further, a waste 6 processing container 6 is provided on the top of the heater 3 and has a bottom portion formed with a protrusion 6a that encloses the heater 3, and the waste 6 thrown in after opening the lid 4 is stored in the processing container 6. It looks like this. The protrusion 6a of the processing container 6 is provided with an opening 5b so that air can enter to burn the waste 6. Further, an air supply lower is opened at the bottom of the frame 1, and air necessary for combustion of the garbage 6 is introduced by a blower 8. This blower 8 is equipped with an air volume variable means 8a that can vary the air volume. Note that this air volume variable means 8a may be any device that can change the air volume, such as by controlling the rotation of a damper or blower 8. In addition, the preheating air passage 1 is arranged so that the blower 8 and the purifier 1o are directly connected to each other.
4 is provided, and a switching valve 16 is provided between the exhaust port 9 and the exhaust port 9.

Moreover, the gas generated by the combustion of the garbage 6 is led to the purifier 1o through an exhaust port 9 opened in the side wall. Purifier 1
o is composed of a catalyst heating heater 11, a catalyst 12, and a catalyst temperature detection means 13. When the catalyst temperature detecting means 13 detects a temperature below the functional temperature of the catalyst 12, the catalyst temperature determining means 13a makes a judgment and the air volume variable means 8a lowers the air flow from the blower 8. This is to quickly raise the temperature of the catalyst 12, and the fact that there is no airflow prevents local abnormal heating of the catalyst. Also,
If the catalyst temperature determining means 13a determines that the catalyst temperature detecting means 13 has reached the catalyst 120 functional humidity, the air volume variable means 8
By a, the air flow of the blower 8 is changed to the normal air flow rate during incineration processing, air is caused to flow into the combustion furnace by the switching valve 16, and the heater 3 is energized by the heater energizing means 3a. The catalyst heating heater 1
1 is intermittently energized.

In the above configuration, the waste 6 is thrown into the processing container 6 by opening the lid 4. When the process is started, the catalyst heating heater 11 and the blower 8 are energized, and the blower 8 is operated at a small air volume by the air volume variable means 8& until the catalyst 12 reaches the functional temperature, and the supply air is controlled by the switching valve 16 to pass through the preheating airway 14. street,
It enters the purifier 1o and is preheated. Thereafter, when the catalyst 12 reaches its functional temperature, the heater 3 is energized by the heater energizing means 3a, and the waste 6 is incinerated. At this time, the blower 8 is switched to normal operation by the air volume variable means 8a, the preheating air passage 14 is blocked by the switching valve 15 by the switching valve driving means 15a, and the exhaust port 9 is opened to release the air necessary for combustion of the garbage 6. Flow into the combustion furnace.

The exhaust gas generated by the combustion of the waste 6 passes through the exhaust port 9 and is purified by the catalyst 12 in the purifier 1o, which has already reached its functional temperature, and is then discharged to the outside. At this time, the catalyst heating heater is energized intermittently by the catalyst heating heater energization/intermittent means so that the temperature of the catalyst 12 is maintained at the functional temperature by the catalyst temperature detection means 13. This prevents release of unpurified exhaust gas due to a drop in the temperature of the catalyst 12 and prevents damage to the catalyst 12 due to abnormally high temperatures.

Next, the operation of the garbage disposal device will be explained based on FIG.

When the waste treatment apparatus is started, in step 21, the catalyst heater 11 is energized, the blower 8 is operated at a small air volume, and preheating of the catalyst 12 is started.

Then, in step 22, the catalyst temperature detecting means 13 detects whether the catalyst 12 has reached the functional temperature, and if the catalyst temperature has reached the functional temperature, the transfer blower 8 is operated normally in step 23, and the flow path is changed by the switching valve 16 to change the flow path to the heater. 3 and starts incineration of the garbage 6. Then, between step 24 and step 27, the catalyst heating heater 1
1 is intermittently energized, and if it is determined in step 27 that the incineration process of the garbage 6 has been completed, the catalyst heating heater 111 heater 3 and blower 8 are stopped in step 28 to end the operation. In addition, in step 27 at this time, garbage 6
The completion of the incineration process may be detected by any method that can detect the end of the incineration process, such as by providing a weight detection means at the bottom of the processing container 6 and detecting the amount of waste 6.

Effects of the Invention As is clear from the above embodiments, according to the present invention, when the catalyst is preheated to the functional temperature by the heater for heating the catalyst, a small amount of air is blown directly to the purifier.
The catalyst can be preheated in a short time while preventing the catalyst from being locally heated and damaged by radiation from the catalyst heater. Furthermore, since no air passes through the combustion furnace during preheating of the catalyst, it is possible to prevent unpurified, smelly gas from being released to the outside even before the catalyst reaches its functional temperature.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a garbage disposal device according to an embodiment of the present invention, FIG. 2 is a flowchart showing sterilization in the same garbage disposal device, and FIG. 3 is a longitudinal sectional view of a conventional garbage disposal device. . 1...Frame body, 2...Furnace material, 3...
...Heater, 3a... Combustion furnace energizing means, 4.
...Lid, 7...Air supply port, 8...
Blower, 8a...Air volume variable means, 9...
・Exhaust port, 10...Purifier, 11...
Catalyst heating heater, 11a...Catalyst heating heater energization continuation means, 12...Catalyst, 13...
... Catalyst temperature detection means, 13a ... Catalyst temperature judgment means, 14 ... Preheating air path, 16 ...
...Switching valve, 15a...Switching valve driving means. Name of agent: Patent attorney Toshio Nakao et al. 16th
26! if

Claims (1)

[Claims] A combustion furnace for reducing waste by incineration, an air supply port for feeding air into the combustion furnace, an air blower provided in communication with the air supply port, an air volume variable means provided on the blower, and a an exhaust port for exhausting exhaust gas; a purifier comprising a catalyst heating heater, a catalyst, and a catalyst temperature detection means provided in communication with the exhaust port; and preheated air connecting the blower, the exhaust port, and the purifier. a switching valve provided between the preheating airway and the exhaust port to switch the flow path of the preheating air and exhaust gas; a catalyst temperature determining means for inputting the catalyst temperature detecting means; and a combustion valve for supplying electricity to the combustion furnace. Furnace energizing means;
A catalyst heating heater energization/intermittent means for intermittent energization of the catalyst heating heater is provided, and the catalyst temperature determining means controls the air volume variable means at a small air volume until the detected temperature reaches a predetermined value, and also controls the switching valve to the preheated air side. When the temperature reaches a predetermined temperature, the air volume at the air volume variable means is increased, the switching valve is switched to the exhaust gas side, and the combustion furnace energizing means is operated.