JPH0568856A - Regenerative heat-treating purifier - Google Patents

Abstract

PURPOSE:To efficiently heat-treat substance generating a harmful gas component and to efficiently purify the generated harmful gas component with minimized energy loss. CONSTITUTION:A regenerative heat-treating purifier has a structure wherein gas is reversed and flows at every specified time through the inside of a purifier main body 2 having two pieces of regenerator layers 1. The same is constituted so that a cracking or combustible harmful gas component 7 is introduced from the interval between two pieces of regenerator layers 1. By this constitution, heat of combustion of harmful gas is effectively circulated and utilized and the purifier is held at the temperature necessary to decompose harmful gas and efficient purification is enabled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to carbon monoxide (CO), hydrocarbons (HC) and bacteria contained in various exhaust gases, bacteria,
Heat and decompose heat-decomposable and combustible components such as mites by heating them to decomposition temperature to oxidize and purify them, or to generate heat-decomposable and combustible harmful gas components and malodorous substances. The present invention relates to a device capable of processing such as and purifying harmful components.

[0002]

2. Description of the Related Art In recent years, it has become indispensable to purify and discharge CO and HC components generated from various combustors, drying and heat treatment devices due to their harmfulness and odor. Hazardous gas is generated even when the band machine, resin, vinyl, etc. are fused, and purification of the gas is required. In the living environment, it is also necessary to purify and remove tobacco smoke, bacteria, mites, etc. Even when waste containing water is dried or incinerated, harmful components and malodorous components are generated, and purification thereof is indispensable. As a method of purifying CO and HC components and killing bacteria and mites, a method of heating gas itself containing harmful components and reacting it with oxygen in the gas has the highest purification efficiency and high reliability. In order to heat the gas and react oxygen in the air with CO and HC, a temperature of 800 to 900 ° C. or higher is required. 200 by the method using an oxidation catalyst
The reaction can proceed in the temperature range of 400 to 400 ° C., and waste of thermal energy can be omitted.

A conventional harmful substance purifying apparatus by heating will be described below with reference to the drawings. 13 (a), (b)
Figure 1 shows the structure of a conventional catalyst heating and purification device. FIG. 13 (a)
Shows the structure of the main body of the catalyst purifier, and FIG. 13 (b) shows the structure of the system including heat exchange. As shown in the figure, the catalyst purifying device body 25, the heat exchanger 27, the heating device 22, the catalyst 23
Composed of. In FIG. 13A, the gas containing the harmful component 7 is introduced into the catalyst heating device main body 25 through the inlet 20,
The heating device 22 raises the temperature to a predetermined temperature, and the catalyst 23 decomposes and purifies heated oxidative decomposition components such as CO and HC,
It is discharged from the outlet 24. At this time, the energy required to raise the temperature of the gas is discharged together with the gas. FIG. 13B shows a system using a heat exchanger for the purpose of recovering a part of this energy. In this configuration, the gas introduced from the gas inlet 26, heated in the heat exchanger 27 and containing harmful components flows along the arrow and proceeds to the catalyst purifier main body 25. The gas that has been heated and purified here enters the heat exchanger 27 again, is cooled, and is discharged from the gas outlet 28. In this way, a part of the energy required to raise the temperature of the gas can be recovered and the energy loss can be reduced.

On the other hand, FIGS. 14 (a) and 14 (b) show an example of a heat purifying apparatus using a heat storage body, which shows the state of FIG. 14 (a) and FIG.
This is intended to reduce the thermal energy by alternately repeating the state of 4 (b). The purifying device main body 2 is composed of a heat storage body 1 and a heating device 11, and the flow of gas containing harmful components is controlled by dampers 29 and 30. 14
In (a), the gas proceeds from the inflow port 18 as shown by the arrow 10, and passes from the inlet 27 to the lower heat storage body 1. Then, it is heated and purified by the heating device 11, cooled by the upper heat storage body 1, and proceeds from the outlet 28 to the outlet 8. Next, after a fixed time, the dampers 29 and 30 are operated so that the gas flows as shown in FIG. That is, FIG.
The upper heat storage body, which has taken away heat from the gas that has been heated and purified in 4 (a), now works to give heat to the gas, and works to supplement a part or most of the energy for heating the gas.
With this configuration, heat is circulated in the purifying device to save energy. When a catalyst is added to this device, it can be placed between the upper and lower heat storage layers.

[0005]

However, as shown in FIG.
In the conventional configuration as shown in (a) and (b), the heat exchanger 27 used is usually mainly made of thin aluminum having good thermal conductivity, and the heat exchange efficiency is limited to 50 to 60%. .. Also, aluminum cannot be used for exhaust gas containing corrosive gases such as SOx and NOx because aluminum corrodes. In addition, in the conventional example shown in FIGS. 14A and 14B, by using a corrosion-resistant heat storage material
The drawbacks of the conventional examples (a) and (b) can be eliminated. However, the efficiency of purification of the components adsorbed to the heat storage layer is very low, and when the gas flow is reversed inside the purification device, the stagnant gas is discharged without purification to the inlet / outlet of the gas and the heat storage layer on the windward side. As a result, the purification efficiency was lowered. Furthermore, in the above two conventional examples, when treating a substance that generates a harmful gas component by heating and drying or heat treatment, a separate heating device is installed,
Therefore, the gas generated during heat treatment is introduced into the purifier. That is, the heating portion for treating the harmful gas generating substance and the heating portion for purifying the harmful gas are present separately, and the thermal efficiency is poor.

The present invention solves such a problem, and prevents the adsorption of harmful components by the heat storage layer and the discharge of unpurified harmful components when the flow direction of gas is reversed, and at the same time generates the harmful components. It is an object of the present invention to provide a heat treatment purification device that can efficiently heat-treat a substance and simultaneously purify harmful components.

[0007]

In order to solve this problem, the present invention has a structure in which a gas flows in a purifying apparatus main body having two heat storage layers by inverting at regular intervals. A heat decomposable or combustible harmful gas component is introduced between the heat storage layers of the layers.

A heating device is provided between the two heat storage layers. Further, a catalyst is provided between the two heat storage layers.

Further, a damper for adjusting the introduction amount of the harmful gas component is provided at the position where the heat decomposable or combustible harmful gas component is introduced.

Further, the heat-decomposable component or the flammable harmful gas component, or the substance generating the heat-decomposable component or the flammable harmful gas component may be present in a closed state between the two heat storage layers. It is the one.

Further, part or all of the thermal energy required for thermally decomposing or burning a substance which generates a thermally decomposable component or a combustible harmful gas component when dried or burned by heating is supplied to the purifying apparatus main body. It is designed to be supplied from the heating device and the heat storage layer.

Further, a substance which is dried or burned by heating to generate a thermally decomposable or combustible harmful gas component,
It is a structure in which it is closed between two heat storage layers and is provided with a temperature sensor for detecting the degree of drying or burning of a substance.

In addition, one end of the two heat storage layers is arranged on the same plane, and the direction of the gas flow inside the purifying device is reversed via a damper that operates with one drive system. is there.

Further, substances which are dried or burned by heating to generate heat-decomposable components and combustible harmful gas components are garbage, sludge, filth, waste oil, stools, animals and plants, organs, flammable wastes, organic solvents. , Ceramic intermediate products and heat treatment materials containing organic binders.

Further, a substance which is dried or burned by heating to generate a thermally decomposable component or a combustible harmful gas component is a fluid substance, and the temperature or volume of the substance generating the harmful gas component is detected, The substance that automatically generates the harmful gas component can be supplied.

Further, a substance which is dried or burned by heating to generate a heat decomposable component and a combustible harmful gas component is put in a container and charged when necessary.

Further, it is installed directly or at the outlet of the exhaust gas in the main body of a device such as a dryer, a heat treatment machine, a firing furnace, which generates a thermal decomposition component and a combustible component.

[0018]

According to the heat storage type heat treatment purifying apparatus having this structure, 2
It has a layer of heat storage material, and the gas periodically reverses and flows. When a high-temperature gas containing a thermally decomposable or combustible harmful gas component is introduced between the two heat storage layers,
It is introduced into the leeward heat storage layer while being mixed with the air that has passed through the windward heat storage layer. Therefore, the heat decomposable or combustible components are oxidized and purified, and the generated heat energy is absorbed by the heat storage layer. After a certain period of time, the damper is operated so as to reverse the gas flow in the purifier body. This operation reverses the windward and leeward relations of the two heat storage layers. That is, the heat storage layer converted to the windward side has a function of heating the passing air and increasing the temperature by sufficiently accumulating thermal energy. That is, while the air heated by the heat storage layer on the windward side and the high-temperature gas containing harmful gas components are mixed and introduced into the heat storage layer on the leeward side for purification, the thermal energy generated by the reaction is generated by the heat storage layer. Will be stored in. By repeating this operation, the heat energy is confined between the two heat storage layers and the temperature necessary for purifying the harmful gas components can be maintained, and the heat loss can be minimized. Further, since the harmful gas is supplied to the portion having the highest temperature between the two heat storage layers, it is immediately oxidized and purified, so that it is not adsorbed by the heat storage layer and stagnant and discharged. The temperature of the heat storage layer depends on the balance between the amount of heat generated when the harmful gas component is purified by oxidation and the amount of heat taken out by the heat radiation and the discharged gas. When the temperature of the gas containing the harmful gas component is low or the amount of heat generated during oxidation purification is small, the temperature of the heat storage layer may not reach the temperature required for purification of the harmful gas component. In that case, 2 It is effective to provide a heating device and a catalyst for promoting oxidation purification between the heat storage layers of the layers. It is desirable that the high-temperature gas containing harmful gas components and the air that passes through the heat storage layer on the windward side be maintained at an appropriate mixing ratio, and a structure in which a damper is provided in the portion where the high-temperature gas is introduced is effective. ..

Further, a substance which generates a harmful gas component by heating and drying or burning is trapped between two heat storage layers, and the heat energy required for heating the substance is heated in the purifying device main body. With the configuration in which thermal energy can be supplied from the device and the heat storage layer, all the air required for cleaning harmful gas passes through the heat storage layer on the windward side, which saves energy and space. It becomes a simple heat treatment and harmful gas purification device.
Substances that dry or burn when heated to generate thermally decomposable and combustible components include garbage, sludge,
Various fields such as waste, waste oil, stools, animals and plants, organs, combustible waste, organic solvents, work-in-process products such as ceramics, and heat treatment materials containing organic binders can be considered. Of these substances, those that have fluidity can be automatically supplied by detecting the temperature or volume, and if they do not have fluidity, put them in a container and add them when necessary. You can A configuration in which a temperature sensor is provided to detect the degree of drying or burning of the substance is also useful. The structure is such that the two heat storage layers are arranged so that one end of each layer is on the same plane, and the direction of gas flow inside the purifier can be reversed through the damper that operates with one drive system. It can be done at low cost and is highly reliable. It can also be installed directly on the main body of equipment that generates thermal decomposition components or combustible components such as dryers, heat treatment machines, and firing furnaces, or can be installed at the exhaust gas outlet.

[0020]

An embodiment of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIGS. 1 (a) and 1 (b) show the construction of a heat storage type heat treatment purifying apparatus of a first embodiment of the present invention.

As shown in FIG. 1, the purifying apparatus main body 2 comprises an air inlet 3, a harmful gas inlet, and two heat storage layers. The main body of this purifier is a gas outlet 4 and a damper 5.
Through the blower 9 to communicate with the gas discharge port 8. In Fig. 1 (a), air flows from right to left,
The damper 5 is operated so as to reverse (b) and flow to the right.

The operation of the purifying device thus configured will be described. As shown in FIG. 1A, the air passes from the inlet 3 through the heat storage layer on the right side. The harmful gas entering from the harmful gas inlet 6 in the central portion of the purifying device 2 enters the heat storage layer 1 on the left side while being mixed with the hot air entering from the inlet 3 of the right air. Here, the harmful gas components are oxidatively purified, and together with the air, go through the gas outlet 4 through the arrow 1
Flowed along 0 through the outlet 8 by the blower 9. The heat storage layer on the left side absorbs heat generated by high-temperature gas and thermal energy generated during oxidative purification. After a certain period of time, the damper 5 is operated to reverse the air flow. Figure 1
It is (b). That is, the air enters from the inlet 3 on the left side and passes through the heat storage layer on the left side first. At this time, heat energy is taken from the heat storage layer 1 that has already stored heat to raise the temperature. It is introduced into the heat storage layer on the right side while being mixed with the harmful gas component 7 in the central portion of the purifier main body 2. Here, the harmful gas component is oxidatively purified and is discharged together with air from the outlet 4 on the right side along the arrow along the arrow and is discharged from the discharge port 8. Then, at this time, the heat storage layer on the right side absorbs the heat generated by the high-temperature gas and the heat energy generated during the oxidation purification. In this way, by repeating the states of FIGS. 1 (a) and 1 (b) at regular intervals, the harmful gas components can be decomposed in a state where the thermal energy is confined inside the purifier. Since all the harmful gas components can pass through the high temperature heat storage layer 1, a high purification efficiency can be obtained. The highest temperature part of the heat storage layer 1 depends on the type of harmful gas component
The temperature is required to be 0 to 800 ° C., and the combustion heat of the harmful gas component is required so that the temperature when the gas containing the harmful gas component and the air are mixed and oxidized and purified by the heat storage layer can maintain the above temperature.

(Embodiment 2) FIGS. 2A and 2B show the configuration of a second embodiment of the present invention.

In this embodiment, introduction of fresh air is stopped,
Only the air containing the harmful gas components is introduced into the purification device. The purifier main body 2 provided with two heat storage layers 1 has an inlet 6 for harmful gas in the center.
When the gas in the purifier is blower 9 to reverse the flow of air, the rotation of the blower is reversed. Reference numeral 37 denotes a damper for discharging the purified air. Figure 2
(A) and (b) show a state in which the discharge damper 37 is operated to reverse the air flow in the blower. 7 shows a harmful gas component.

As shown in FIG. 2 (a), the discharge damper 37 on the right side is opened by a certain amount, and the blower 9 is operated so that the air flow is from left to right. Hazardous gas inlet 6
The high-temperature gas containing the harmful gas component coming in from the inside goes into the left side heat storage layer 1 while being mixed with the air that has circulated through the purification device system and passed through the right side heat storage layer 1. Here, the harmful gas component is oxidized and purified, and is circulated in the system by the blower 9 along the arrow 10. An amount of air corresponding to the amount of air flowing in through the harmful gas inlet 6 is discharged from the discharge damper 37. The heat storage layer 1 on the left side absorbs heat generated by high-temperature gas and thermal energy generated during oxidation purification. After a certain period of time, operate the discharge damper 37 and blower 9
To reverse the flow of air. Figure 2
It is (b). With this configuration, the air circulating in the system first passes through the heat storage layer 1 on the left side. At this time, the heat energy is taken from the heat storage layer 1 to raise the temperature. It is introduced into the heat storage layer 1 on the right side while being mixed with the harmful gas component 7 in the central portion of the purification device. Here, the harmful gas component is oxidatively purified, passes through the blower 9 along with the air along the arrow 10, and is partially discharged from the discharge damper 37 on the left side to the outside of the system. At this time, the heat storage layer on the right side absorbs the heat generated by the high-temperature gas and the heat energy generated during the oxidation purification. This Figure 2
By periodically repeating the states of (a) and (b), the harmful gas component can be decomposed in a state where the thermal energy is confined inside the purifier. In addition, since all harmful gas components can also pass through the high temperature heat storage layer, high purification efficiency can be obtained. Similar to the first embodiment, the highest temperature part of the heat storage layer requires 700 to 800 ° C. depending on the type of harmful gas component, but the air supply is only air containing the harmful gas component. Also, the air that has passed through the leeward heat storage layer is in a state of being heated even slightly above the outside air, and since these energy can be reused, it is possible to operate even in a state where the concentration of harmful gas is lower than that in the first embodiment. is there.

(Embodiment 3) FIG. 3 shows the construction of a harmful gas heating and purifying apparatus according to a third embodiment of the present invention.

In the third embodiment, the heating device 11 is provided between the two heat storage layers into which the harmful gas components are introduced in the first embodiment. In order to maintain the highest temperature part of the heat storage layer 1 at 700 to 800 ° C., the amount of the combustible gas in the harmful gas components needs to be high and stable. If low-concentration air flows for a long time, it is expected that the temperature of the heat storage layer will drop to the extent that the oxidation purification reaction of harmful components does not occur, and a heating device will be required to restore the reaction again. .. Of course, it is effective even when the concentration of harmful gas is low. A similar heating device can be installed in the second embodiment.

(Embodiment 4) FIGS. 4 (a) and 4 (b) show the construction of a harmful gas heating and purifying apparatus according to a fourth embodiment of the present invention.

In the fourth embodiment, the catalyst 12 is provided between the two heat storage layers through which the harmful gas component passes in the first embodiment.
Is provided. By using such an oxidation catalyst 12, the temperature at which the harmful gas components are purified can be lowered. In the case of only the normal heat storage layer 1, the temperature is 7
It is necessary to maintain the temperature at 00 to 800 ° C, but when the catalyst 12 is used, 250 to 350 ° C is sufficient. Further, it is effective even when the concentration of harmful gas is low as compared with the first embodiment,
It can also be applied to the second embodiment.

(Embodiment 5) FIGS. 5 (a) and 5 (b) show the construction of a harmful gas heating / purifying apparatus according to a fifth embodiment of the present invention.

FIGS. 5 (a) and 5 (b) show the first, third and fourth parts.
In this embodiment, a substance that generates a harmful gas component is sealed in the central portion of the purifying device main body, and heat treatment of this substance is also intended to be performed at the same time. An air inlet 3 is provided at both ends of the purifying device main body 2 provided with the heat storage layer 1, and a heating device 11 and a catalyst 12 are provided between the heat storage layer 1. The blower 9 that moves the air and the damper 5 reverse the air flow. FIGS. 5A and 5B show a state in which the damper 5 is operated to reverse the air flow. The object 13 to be processed generates a harmful gas component by the heat treatment. Treated substance 13
As raw garbage, sludge, filth, waste oil, stools, flora and fauna,
Various fields such as organs, flammable wastes, organic solvents, work-in-process products such as ceramics, and heat treatment materials containing organic binders can be considered.

FIG. 5A will be described. The air advances from the inlet 3 on the right side to the central portion of the purifier while being heated by the heat storage layer 1 on the right side. The substance to be treated put in the central portion is heat-treated by the heating device 11 and heated air, and at the same time, harmful gas components are released. The harmful gas component and air are mixed, and the oxygen in the air is oxidatively purified by the catalyst 12 and is discharged from the gas outlet 4 through the blower 9 along the arrow 10 by the blower 9 along with the air. The heat storage layer 1 on the left side is a heating device 11
It absorbs heat generated by heat and thermal energy generated during oxidative purification. After a certain period of time, the damper 5 is operated to reverse the air flow. The state is shown in FIG. That is, the air enters from the inlet 3 on the left side and passes through the heat storage layer 1 on the left side first. At this time, the heat energy is taken from the heat storage layer 1 to raise the temperature. In the central part of the purifying device, it is mixed with harmful gas components generated from the object to be treated 13, heated by the heating device 11 and purified by the catalyst. Then, the gas is introduced into the heat storage layer 1 on the right side, proceeds from the outlet 4 on the right side along the arrow, and is discharged from the gas discharge port 8. Then, at this time, the heat storage layer on the right side absorbs heat by the heating device 11 and thermal energy generated at the time of purification by oxidation. By periodically repeating the states of FIGS. 5 (a) and 5 (b), the object to be treated 13 is efficiently heat-treated, and the harmful gas generated from the object to be treated 13 in the state where the heat energy is trapped inside the purifying device. The components can be decomposed. Since all harmful gas components can pass through the catalyst 12, high purification efficiency can be obtained.

(Embodiment 6) FIG. 6 shows the configuration of a sixth embodiment of the present invention.

In the sixth embodiment, the heat treatment state of the object 13 which produces harmful gas components in the fifth embodiment can be controlled by opening / closing the damper 15 and the temperature sensor 14. The heat treatment rate of the object to be treated changes depending on the amount of the object to be treated, the temperature of the air in the central portion of the purification device, the air volume, and the like, and the end time of the heat treatment also changes. By controlling these factors, a highly efficient and reliable heat treatment purification device can be obtained.

(Embodiment 7) FIGS. 7A to 7D show the configuration of a seventh embodiment of the present invention.

In this embodiment, one end of two heat storage layers is arranged on the same plane at the slide damper 5. As shown in FIGS. 7A to 7D, the heat storage layer 1
Is provided in the purifier main body 2 with an air inlet 3 and a harmful gas inlet 6, and comprises a blower 9 for moving the air and a damper 5 which can be operated by one drive system for reversing the flow of the air. FIG. 7B shows a configuration of a cross section taken along line AB of FIG. 7A, and FIGS. 7C and 7D show FIG.
The configuration in which the damper 5 is operated to reverse the air flow from the states of (a) and (b) is shown. 7 shows a harmful gas component. First, the operation of FIGS. 7A and 7B will be described. The air passes from the inlet 3 through the heat storage layer 1 on the left side. Then, in the part where the two chambers having the two heat storage layers below are in communication with each other, it mixes with the high-temperature gas containing the harmful gas component that enters from the harmful gas inlet 6, and enters the heat storage layer on the right side. To go. Here, the harmful gas components are purified by oxidation, and rise upward together with the air from the gas outlet 4 to the gas flow direction 1
It is discharged from the discharge port 8 by the blower 9 along the arrow 0. At this time, the heat storage layer on the right side absorbs the heat generated by the high-temperature gas and the thermal energy generated during the oxidation purification. After a certain period of time, the slide damper 5 is operated to reverse the air flow. The state is shown in FIGS. 7 (c) and 7 (d). In this state, air enters through the inlet on the right side and passes through the heat storage layer on the right side first. At this time, the heat energy is taken from the heat storage layer 1 to raise the temperature. It is introduced into the heat storage layer 1 on the left side while being mixed with harmful gas components in the lower part of the purifying device. Here, the harmful gas components are oxidatively purified, and proceed with the air from the outlet on the left side along the arrow along the arrow to be emitted from the outlet. FIG. 8 shows a detailed structure of the stand damper 5. The shape of the slide damper is shown in FIG. FIG. 8B shows an opening portion on the same surface of the main body, which includes an air inlet 21 and a gas outlet 22. The slide is provided with two openings 18. In the state of FIG. 8C, the slide plate 20 has moved, the air inlet 21 is open in the right heat storage layer chamber, and the gas outlet 22 is open in the left heat storage layer chamber. Indicates. Of course, the air enters the right room and comes out from the left room. In the state of FIG. 8D, the slide plate 20 moves further to the right, the air inlet 21 is opened in the left heat storage layer chamber, and the gas outlet 22 is opened in the right heat storage layer chamber. Shows the state of becoming. At this time, air enters the left chamber and emerges from the right chamber. By the operation of moving the slide damper as described above, the direction of air flow can be reversed by one drive system.

(Embodiment 8) FIG. 9 shows the configuration of an eighth embodiment of the present invention.

The structure of FIG. 9 is the structure of the structure of the seventh embodiment, in which the substance 13 which produces a harmful gas component is sealed in the lower part of the main body of the purifying device and the heat treatment of this substance is also carried out at the same time. 1 is a heat storage layer, and the purification device main body 2 is a heat storage layer 1,
An air inlet 3, a heating device 11 and a catalyst 12 are provided,
The blower 9 for moving the air and the damper 5 for reversing the flow of the air are provided in the gas path.
9B shows a configuration of a cross section taken along the line AB of FIG. 9A.
9C and 9D show a configuration in which the damper 5 is operated to reverse the air flow from the states shown in FIGS. 9A and 9B. Reference numeral 13 denotes a substance to be treated which generates a harmful gas component by heat treatment. First, the operation of this embodiment will be described with reference to FIGS. 9 (a) and 9 (b). The air advances from the inlet 3 to the lower part of the purifying device while being heated by the heat storage layer 1 on the left side. The substance 13 to be treated sealed at the lower part is heat-treated by the heating device 11 and the heated air, and at the same time, releases harmful gas components. This harmful gas component and air are mixed, and oxygen in the air oxidizes and purifies the harmful gas component by the catalyst 12, and proceeds with the air to the upper part of the right chamber and the gas outlet 4
Is discharged from the discharge port 8 by the blower 9 along the arrow 10. The heat storage layer 1 on the right side absorbs heat generated by the heating device 11 and thermal energy generated during oxidation purification. After a certain period of time, the slide damper 5 is operated to reverse the air flow. The state is shown in FIGS. 9 (c) and 9 (d). As shown in the figure, air enters from the inlet 3 on the right side and passes through the heat storage layer 1 on the right side first. At this time, the heat energy is taken from the heat storage layer 1 to raise the temperature. In the lower part of the purifying device, it is mixed with harmful gas components generated from the object to be treated, heated by the heating device 11 and purified by the catalyst 12. Then, it is introduced into the heat storage layer 1 on the left side, proceeds from the outlet 4 of the left chamber along the arrow 10, and is discharged from the discharge port 8. And at this time, the heat storage layer 1 on the left side
Absorbs the heat generated by the heating device 11 and the thermal energy generated during oxidation purification. As shown in FIG.
By periodically repeating the states of (b) and FIGS. 9 (c) and 9 (d), the object to be processed is efficiently heat-treated, and thermal energy is generated from the object to be processed in a state of being confined inside the purifier. It can decompose harmful gas components. Since all the harmful gas components can pass through the catalyst, high purification efficiency can be obtained. Further, in this embodiment, the heat treatment state of the object 13 that produces harmful gas components can be controlled by opening and closing the damper 15 and the temperature sensor 14. The heat treatment rate of the object to be treated changes depending on the amount of the object to be treated, the temperature of the air in the central portion of the purification device, the air volume, and the like, and the end time of the heat treatment also changes. By controlling these factors, a highly efficient and reliable heat treatment purification device can be obtained.

(Embodiment 9) FIG. 10 shows the configuration of a ninth embodiment of the present invention.

In the ninth embodiment, the object to be treated 13 which generates harmful gas components in the sixth embodiment has fluidity, and the liquid supply unit 32 causes the liquid to be discharged by the information from the temperature sensor 14 or the like. The damper 1 is configured to be automatically charged from the flow path 31 to the central portion of the heat treatment purification device.
By controlling the opening and closing of 5 and the temperature sensor 14, a highly efficient and reliable heat treatment purification device can be obtained.

The same construction can be applied to the eighth embodiment. (Embodiment 10) FIG. 11 shows the structure of a tenth embodiment of the present invention.

In the tenth embodiment, the material container 3 is the same as the material to be processed 13 which produces harmful gas components in the sixth embodiment.
4 so that it can be introduced from the door 33 when needed.

The same construction can be applied to the eighth embodiment. (Embodiment 11) FIG. 12 shows the construction of an eleventh embodiment of the present invention.

In the eleventh embodiment, the purification device 2 shown in the first embodiment is directly connected to the heat treatment conveyor 35 so that the harmful gas component 7 generated from the object 37 on the heat treatment conveyor 35 is purified. It is the one. It can be widely used in a dryer, a sintering furnace, etc., and the purifying apparatus of the second, third, fourth, and seventh embodiments can have the same configuration.

[0046]

As is apparent from the above description of the embodiments, according to the heat storage type heat treatment purification apparatus of the present invention, a heat decomposable or combustible harmful gas component is provided between two heat storage layers. With the structure to be introduced, it is possible to obtain a highly efficient and energy-saving purification device with a high purification rate in which harmful components are not adsorbed by the heat storage layer and unpurified harmful components are not discharged when the gas flow direction is reversed. In addition, heat treatment is required, so that heat treatment can be efficiently performed on a substance that generates a harmful gas component, and at the same time, a harmful component can be purified.

[Brief description of drawings]

FIG. 1A is a configuration diagram of a heat storage type heat treatment purification apparatus according to a first embodiment of the present invention, and FIG. 1B is a configuration diagram in which the gas flow is reversed.

FIG. 2 (a) is a block diagram of a heat storage type heat treatment purifying apparatus of a second embodiment, and FIG. 2 (b) is a block diagram showing a state in which the gas flow is reversed.

FIG. 3A is a configuration diagram of a heat storage type heat treatment purification apparatus of a third embodiment, and FIG. 3B is a configuration diagram in a state where the gas flow is reversed.

FIG. 4A is a configuration diagram of a heat storage type heat treatment purification apparatus of a fourth embodiment, and FIG. 4B is a configuration diagram in a state in which the gas flow is reversed.

5A is a configuration diagram of a heat storage type heat treatment purification apparatus of a fifth embodiment, and FIG. 5B is a configuration diagram showing a state in which the gas flow is reversed.

FIG. 6A is a configuration diagram of a heat storage type heat treatment purification apparatus of a sixth embodiment, and FIG. 6B is a configuration diagram showing a state in which the gas flow is reversed.

7A is a configuration diagram of a heat storage type heat treatment purification apparatus of a seventh embodiment, FIG. 7B is a sectional view taken along the line AB of FIG. 7A, and FIG. 7C is a view of the gas of FIG. The block diagram which shows the state which reversed the flow (d) is CD sectional view taken on the line of FIG.7 (c).

8A is a plan view of a slide damper of the present invention, FIG. 8B is a plan view of a damper portion formed on the same plane, and FIG. 8C is an opening formed by overlapping the slide damper and the damper. 8D is a plan view of an opening formed at a position different from that of FIG. 8C.

9A is a configuration diagram of a heat storage type heat treatment purification apparatus of an eighth embodiment, FIG. 9B is a cross-sectional view taken along the line AB of FIG. 9A, and FIG. 9C is a view of the gas of FIG. 9A. FIG. 9D is a cross-sectional view taken along the line C-D of FIG. 9C, in which the flow is reversed.

FIG. 10A is a configuration diagram of a heat storage type heat treatment purification apparatus of a ninth embodiment, and FIG. 10B is a configuration diagram showing a state in which the gas flow is reversed.

FIG. 11 is a block diagram of a heat storage type heat treatment purification device of a tenth embodiment.

FIG. 12 is a block diagram of a heat storage type heat treatment purification apparatus of an eleventh embodiment.

FIG. 13 (a) is a configuration diagram of a conventional catalyst purification device body, and FIG. 13 (b) is a configuration diagram of a catalyst purification system including the same heat exchanger.

FIG. 14 (a) is a configuration diagram of the heat storage type purification apparatus main body, and FIG. 14 (b) is a configuration diagram showing a state in which the flow of the exhaust gas is reversed.

[Explanation of symbols]

 1 Heat Storage Layer 2 Purification Device Main Body 3 Air Inlet 4 Gas Outlet 5 Damper 6 Harmful Gas Inlet 7 Harmful Gas Component 8 Gas Discharge Port 9 Blower 10 Gas Flow Direction

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Claims (12)

[Claims] 1. A structure in which a gas reverses and flows at regular time intervals inside a purifier main body having two heat storage layers,
A heat storage type heat treatment purifying apparatus for introducing a heat decomposable or combustible harmful gas component from between the two heat storage layers. 2. The heat storage-type heat treatment purification device according to claim 1, wherein a heating device is provided between the two heat storage layer layers. 3. The heat storage-type heat treatment purification apparatus according to claim 1, wherein a catalyst is provided between the two heat storage layers. 4. The heat storage type heat treatment purification apparatus according to claim 1, wherein a damper for adjusting the introduction amount of the harmful gas component is provided at a position where the thermally decomposable or combustible harmful gas component is introduced. 5. A heat decomposable component or a flammable harmful gas component, or a substance that generates the heat decomposable component or a flammable harmful gas component is present in a closed state between two heat storage layers. Item 5. A heat storage-type heat treatment purification device according to any one of items 2 to 4. 6. A part or all of the thermal energy required for thermally decomposing or burning a substance that generates a heat-decomposable component or a combustible harmful gas component by being dried or burned by heating, The heat storage type heat treatment purification device according to claim 5, wherein the heat storage type heat treatment purification device is supplied from a heating device and a heat storage layer. 7. A material, which is dried or burned by heating to generate a heat decomposable or combustible harmful gas component, is present between two heat storage layers in a closed state, and the material is dried. Alternatively, the heat storage type heat treatment purifying apparatus according to claim 5, further comprising a temperature sensor for detecting the degree of combustion. 8. The structure according to claim 1, wherein one ends of the two heat storage layers are arranged on the same plane, and the direction of gas flow inside the purifying device is reversed via a damper operating with one drive system. ~ 7
The heat storage-type heat treatment purification device according to any one of 1. 9. A substance which is dried or burned by heating to generate a heat-decomposable component and a combustible harmful gas component is raw garbage,
A heat treatment material containing sludge, filth, waste oil, stools, animals and plants, organs, flammable wastes, organic solvents, intermediate products of ceramics, and an organic binder.
The heat storage type heat treatment purification device described. 10. A substance which is dried or burned by heating to generate a thermally decomposable component or a combustible harmful gas component is a fluid substance, and the temperature or volume of the substance generating the harmful gas component is detected, The heat storage-type heat treatment purification apparatus according to claim 6, 7 or 8, wherein a substance that automatically generates the harmful gas component is supplied. 11. The heat storage type heat treatment purification apparatus according to claim 6, 7 or 8, wherein a substance which is dried or burned by heating to generate a heat decomposable component and a combustible harmful gas component is put into a container and charged when necessary. 12. The apparatus is installed directly at the outlet of the exhaust gas in the main body of a device such as a dryer, a heat treatment machine, or a firing furnace that generates thermally decomposed components and combustible components.
4. The heat storage type heat treatment purification device according to 4 or 8.