KR950012524B1 - Heat treatment apparatus of air purification - Google Patents

Abstract

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Description

Regenerative Heat Treatment Purifier

Figure 1a is a block diagram of a heat storage type heat treatment purification apparatus of the first embodiment of the present invention.

1B is a configuration diagram in which the flow of copper gas is reversed.

FIG. 2A is a block diagram of a heat storage type purification apparatus of a second embodiment. FIG.

2b is a configuration diagram in which the flow of copper gas is reversed.

3A is a block diagram of a heat storage type heat treatment purification apparatus of the third embodiment.

3b is a configuration diagram showing a state in which the flow of copper gas is reversed.

4A is a configuration diagram of the heat storage type heat treatment purification apparatus of the fourth embodiment.

4B is a configuration diagram showing a state in which the flow of copper gas is reversed.

5A is a configuration diagram of a heat storage type heat treatment purification apparatus of a fifth embodiment.

5B is a configuration diagram in which the flow of copper gas is reversed.

6A is a configuration diagram of a heat storage type heat treatment purification apparatus of a sixth embodiment.

6B is a configuration diagram in which the flow of copper gas is reversed.

7A is a configuration diagram of the heat storage type thermal treatment purification apparatus of the seventh embodiment.

FIG. 7B is a cross-sectional view taken along the line A-B in FIG. 7A.

FIG. 7C is a configuration diagram showing a state in which the gas flow of FIG. 7A is inverted. FIG.

FIG. 7D is a cross-sectional view taken along the line C-D of FIG. 7C.

8A is a plan view of the slide damper used in the seventh embodiment.

8B is a plan view of a damper portion formed in the purification device.

8C is a plan view of the opening formed by the overlapping of the slide damper and the damper portion.

FIG. 8D is a plan view of an opening formed by stacking a slide damper and a damper at a position different from that of FIG. 8C.

9A is a configuration diagram of the heat storage type heat treatment purification apparatus of the eighth embodiment.

FIG. 9B is a cross-sectional view taken along the line A-B in FIG. 9A. FIG.

9C is a configuration diagram showing a state in which the gas flow of FIG. 9A is reversed.

FIG. 9D is a cross-sectional view taken along the line C-D in FIG. 9C. FIG.

10A is a configuration diagram of a heat storage type heat treatment purification apparatus of the ninth embodiment.

10B is a configuration diagram showing a configuration in a state in which the flow of copper gas is reversed.

11 is a configuration diagram of the heat storage type heat treatment purification apparatus of the tenth embodiment.

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

13A is a block diagram of a conventional catalyst purifying apparatus body.

Figure 13b is a block diagram of a catalytic purification system including the heat exchanger.

14A is a block diagram of a conventional heat storage purification apparatus body.

14B is a configuration diagram showing a state in which the flow of copper exhaust gas is reversed.

* Explanation of symbols for main parts of the drawings

1: heat storage layer 2: purifier body

3: inlet of air 4: outlet of gas

5: damper 6: inlet of harmful gas

7: harmful gas component 8: gas outlet

9: blower 10: flow direction of gas

The present invention is to heat the harmful gases such as carbon monoxide (CO) and hydrocarbons (HC), harmful thermal decomposition components such as bacteria and mites, and flammable components contained in various exhaust gases to the decomposition temperature, and to oxidize and kill them. The present invention also relates to a device capable of processing heat-decomposable or combustible harmful gas components or odorous substances by drying, heat treatment and the like, and purifying the harmful gas components generated at that time.

In recent years, CO and HC components generated from various combustors, drying, and heat treatment apparatuses have become indispensable because of their harmfulness and odor. Hazardous gases are also generated at the time of fusion of bend groups, synthetic resins, for example, polyvinyl chloride, and the like, and purification thereof is required. Moreover, in the living environment, it is also necessary to purify and remove tobacco smoke, bacteria, and ticks. In addition, even when the waste containing water is dried or incinerated, harmful and odorous components are generated by the treatment, and the purification thereof is indispensable. As a method for purifying CO and HC components and killing bacteria and mites, the method of heating the gas itself containing harmful components and reacting the harmful components in the gas with oxygen has the highest purification efficiency and high reliability. However, in order to heat the gas containing CO and HC, and to react this with oxygen in air, the temperature of about 800-900 degreeC is required.

On the other hand, in the method using the oxidation catalyst, the oxidation reaction can proceed in the temperature range of 200-400 ° C. lower than the above temperature, and in this way, the waste of thermal energy can be eliminated.

The representative example of the conventional noxious substance purification apparatus by heating is demonstrated with reference to drawings.

13a and b show the structure of a conventional catalytic heating purification apparatus. FIG. 13A shows the structure of the catalyst purifying body, and FIG. 13B shows the structure of the whole system including the heat exchange.

As shown in the figure, the system is composed of a catalyst purifier main body 25, a heat exchanger 27, a heating device 22, and a catalyst 23. In FIG. 13A, the gas containing the noxious component 7 is introduced into the catalyst heating device main body 25 from the inlet 20, and is heated up by the heating device 22 to a predetermined temperature to contact the catalyst 23. Here, harmful components such as CO and HC are decomposed and purified and discharged from the outlet 24. At this time, the energy required to raise the temperature of the gas is discharged together with the gas from the outlet 24. In order to recover a part of this discharged energy, a system using a heat exchanger is shown in FIG. 13B. In this structure, the gas containing the harmful component introduced from the gas inlet 26 and heated up in the heat exchanger 27 flows along the arrow and proceeds to the catalyst purifier main body 25. Here, the heat-purified gas enters the heat exchanger 27 again to take away the heat it has, and is cooled by itself and is discharged from the outlet 28 of the gas. In this way, the energy loss can be reduced by recovering a part of the energy required for the temperature rise of the gas.

14a and b show an example of a heating and purification device using two heat accumulators, and aim to reduce thermal energy by alternately repeating the state of FIG. 14a and the state (euro switching) of FIG. 14b. The main body 2 is comprised of two heat storage bodies 1 and the heating apparatus 11, and the direction through which the gas containing a noxious component flows is controlled by the dampers 29 and 30. As shown in FIG. In FIG. 14A, the gas proceeds from the inlet 18 as shown by the arrow 10 and first passes through the lower heat storage body from the inlet 27. Then, it is heated and purified by the heating device 11, cooled by the heat storage body 1 at the upper portion, and proceeds from the outlet 28 to the outlet 8. Next, after a certain time, the dampers 29 and 30 are respectively operated to have the opposite gas flow as shown in Fig. 14B. That is, the heat accumulator in the upper part which took heat from the heat-purified gas in FIG. 14A this time acts to give heat to gas, and acts to replenish some or most of the energy which heats gas. By this structure, heat circulates in the purification device, and energy saving is achieved. When a catalyst is added to this apparatus, it can be placed between the upper and lower heat storage layers.

However, in the conventional configuration as shown in Figs. 13A and 13B, the heat exchanger 27 used is usually made of thin aluminum having good thermal conductivity, and its heat exchange efficiency is limited to 50-60%. to be. Further processing of the exhaust gas containing corrosive gases such as SO _X or NO _X is, could not be used due to the corrosion of aluminum. In addition, in the conventional example shown in FIG. 14A and FIG. B, the fault of the conventional example of FIG. 13A and b can be eliminated by using a corrosion resistant heat storage material. However, the purification efficiency of the components adsorbed on the heat storage layer is very low, and when the gas flow is reversed in the inside of the purification device, the stagnant gas is discharged at the time when the stagnant gas is not purified in the heat storage layer on the side where the gas enters or winds enter These were the causes of the deterioration of purification efficiency.

In addition, in the above two conventional examples, in the case of treating the substance itself which generates harmful gas components by heating and drying or heat treatment, both of the above-described conventional apparatuses are provided separately, and gas generated when the heat treatment therein is introduced into the purification apparatus. It is necessary to make a sentence to say. That is, the heating part for treating the noxious gas generating substance and the heating part for purifying the noxious gas exist separately, resulting in a poor thermal efficiency.

SUMMARY OF THE INVENTION The present invention solves such a problem. The substance itself prevents the emission of unrefined harmful components while adsorbing harmful components by the heat storage layer and reversing the flow direction of the gas, and generates a harmful component itself. It is an object of the present invention to provide a heat treatment purifier capable of efficiently heat-treating and efficiently purifying harmful components.

In order to solve this problem, the present invention is provided with two breathable heat accumulator layers spaced in a gas flow passage inside the purifier body, and the gas flows inverted at regular intervals. The thermally decomposable or flammable noxious gas component to be treated is introduced into the flow path between the two heat storage layers.

The present invention further provides a heating device between two breathable heat storage layers.

The present invention further provides a catalyst for decomposing or burning a toxic gas component between two heat storage layers.

The feature of the present invention is that the heat accumulator layer is made of a ceramic having excellent corrosion resistance, preferably alumina, and a preferred form thereof is a briquette-like body having a large number of vent holes.

Moreover, this invention is provided with the damper which adjusts the introduction amount of the said noxious gas component in the position introduce | transduced into the gas flow path of the heat-decomposable or flammable noxious gas component.

The present invention further provides a thermal decomposition component or a flammable noxious gas component or a substance generating the thermally decomposable component or a flammable noxious gas component between the two heat storage layers.

In addition, at least a part of thermal energy required for pyrolysis or combustion of a substance that generates pyrolytic or flammable noxious gas components by drying or burning by heating is supplied from a heating device and a heat storage layer of the purifier body.

The present invention further provides a structure in which a substance which generates a thermally decomposable or flammable noxious gas component by drying or burning by heating is closed between two heat storage layers and detects the degree of drying or burning of the substance. The temperature sensor is installed near the product input section.

In the present invention, when the two heat storage layers are formed at intervals in the gas flow path, the general portions are arranged to be at the same level, and a damper having a plurality of openings operating in one drive system is provided, and the plurality of openings are provided. The gas flow in the purifier is reversed by the opening and closing operation of the excitation damper.

In addition, substances that generate heat-decomposable or flammable harmful gas components by heating or burning by heating are food waste (kitchen waste), mud, dirt, waste oil, faeces, animal and animal organs, self-flammable waste, organic solvents, and intermediates of ceramics. It is intended for any one of heat treatment materials including products and organic binders.

When the substance which is dried or combusted by heating to generate a thermally decomposable or flammable noxious gas component is a fluid, the sensor detects the temperature or capacity of the substance which generates the noxious gas component, It is to be able to supply the material generating the harmful gas components automatically by the output signal.

In addition, a substance that generates a thermally decomposable or flammable noxious gas component by drying or burning by heating is placed in a container and introduced into a gas flow path between the heat accumulator layers when necessary.

The present invention is also characterized in that the apparatus body is installed directly in the apparatus main body that generates a pyrolytic or combustible component such as a dryer, a heat treatment machine, a kiln, or is installed at the exhaust gas outlet thereof.

According to the heat storage type heat treatment purification apparatus of the present invention having such a configuration, two air storage heat storage layers are provided, and the gas flows inverted periodically. When a hot gas containing a thermally decomposable or flammable noxious gas component is introduced between these two heat storage layers, the air blows while mixing with the air (oxygen) which has passed through the heat storage layer on the side where the wind blows. It is introduced into the heat storage layer. Thus, the thermally decomposable or flammable gas component is oxidized and the thermal energy generated at that time is absorbed into the heat storage layer. After a certain time, the damper is operated to reverse the flow of gas in the purifier body. This operation reverses the relationship between the wind blowing in the two heat storage layers. That is, the heat accumulator layer which switched to the wind blows enough heat energy, and heats the air which passes through this, and raises the temperature. That is, the air heated by the heat accumulator layer on the side where the wind blows and the hot gas containing harmful gas components are mixed and introduced into the heat accumulator layer on the side where the wind blows, and the thermal energy generated by the reaction is purified. It is measured in the heat storage layer. By repeating this operation alternately, the heat energy is confined between the two heat storage layers, the temperature necessary for purifying the noxious gas component can be maintained, and the loss of heat can be minimized. In addition, since noxious gas is oxidized and purified immediately because it is supplied to the highest temperature portion between the two heat storage layers, there is no such thing as being absorbed in the heat storage layers and stagnantly discharged. The temperature of the heat storage layer here is based on the balance between the calorific value at the time of oxidative purification of the noxious gas component and the amount of heat carried out by heat dissipation and discharged gas. When the temperature of the gas containing the noxious gas component is low or the calorific value during oxidative purification is low, the temperature of the heat storage layer may not reach the temperature necessary for the purification of the noxious gas component. It is effective to form a heating device for heating the gas to be treated and a catalyst for promoting oxidative purification in between.

The hot gas containing the noxious gas component and the air passing through the heat accumulator layer on the side where the wind blows are preferably maintained at an appropriate mixing ratio, and a structure in which a damper is installed at a portion where the hot gas is introduced to adjust the air volume is effective. .

In addition, by trapping a substance which generates a harmful gas component by heating, drying or burning, between the two heat accumulator layers, the heat energy required to heat the substance itself can be supplied from the heating device and the heat accumulator layer of the purifier body. In this configuration, since all the air required for the purification of harmful gases passes through the heat storage layer on the side of the wind, energy saving, space-saving, and simple structure of heat treatment and harmful gas purification device is provided. do. In addition, as a substance that generates heat-decomposable or flammable components by drying or burning by heating, food products (kitchen waste), mud, dirt, waste oil, faeces, animals and plants, organs, combustible waste, organic solvents, ceramics, etc. And heat treatment materials including organic binders. In the case of the substance which is fluid among these substances, the temperature or a capacity | capacitance, etc. can be detected and it can supply automatically based on it. On the other hand, when there is no fluidity | liquidity, the method of putting into a container and inject | pouring into a gas flow path as needed can be taken. In order to detect the degree of drying or burning of the substance, a configuration in which a temperature sensor is provided near the input portion is also effective.

Each of the two heat storage layers is arranged at the same level position in the gas flow path, and the structure in which the flow direction of the gas inside the purifier is reversed by switching the opening and closing of a plurality of dampers operating in one drive system is As a method of switching the flow of air, it can be made cheap and the reliability is high. In addition, the device may be installed directly in the main body of a device in which pyrolysis or combustible components, such as a dryer, a heat treatment machine, a kiln, or the like, are generated, or at the outlet of the exhaust gas, in terms of space saving and purification efficiency. It is a preferred state of use.

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

Example 1

1A and B show the structure of the heat storage type heat treatment purification apparatus of the first embodiment of the present invention.

As shown in FIG. 1, the purifier main body 2 is provided with an air inlet 3, an inlet 6 for noxious gas, and two heat storage layers 1. The purifier body also has a gas passage communicating with the gas outlet 8 through the blower 9 via the gas outlet 4 and the damper 5. In FIG. 1A, the air is operated to flow from right to left, and the damper 5 is operated to invert FIG. 1B to flow to the right.

The operation of the purification device configured in this way will be described next. As shown in FIG. 1A, air entering from the air inlet 3 on the right side of the apparatus passes through the heat storage layer on the right side. On the other hand, the noxious gas coming from the inlet 6 of the noxious gas between the two heat accumulator layers 1 in the central part of the purifier body 2 mixes with the hot air coming from the inlet 3 of the air on the right side and accumulates on the left side of the heat storage unit. It enters the body layer 1. The noxious gas component is oxidized and flows along with the arrow 10 from the outlet 4 of the gas together with air, and is discharged from the gas outlet 8 by the blower 9. The heat accumulator layer on the left absorbs heat due to high temperature time or thermal energy generated during oxidative purification. After a certain time, the damper 5 is operated to reverse the flow of air. The state is 1b. That is, air enters from the inlet 3 on the left and passes first through the layer of heat accumulator on the left. At this time, heat energy is taken away from the heat accumulator layer 1 already accumulating and heated up. In the central part of the purifier body (2) is mixed with the noxious gas component (7) is introduced into the heat storage layer on the right. The noxious gas constituents are oxidized and purified along the arrow from the outlet 4 on the right side with air and are discharged to the outside from the outlet 8 of the gas. In this case, the heat accumulator layer on the right side absorbs heat generated by hot gas or oxidative purification. In this way, by repeating the states of Figs. 1a and b alternately at regular intervals, it is possible to decompose harmful gas components in a state where thermal energy is confined within the purification autonomy. In addition, since all of the noxious gas components to be treated can pass through the high temperature layered layer 1, high purification efficiency can be obtained. The highest temperature part of the heat accumulator layer (1) depends on the type of harmful gas component but requires a temperature of 700-800 ° C, and the gas containing the harmful gas component and air are mixed and oxidized by the heat accumulator layer. The heat of combustion of the noxious gas component which can maintain the above temperature is required.

Example 2

2a and b show the configuration of the second embodiment of the present invention.

In the present invention, fresh air from the outside is prevented from being introduced into the device, and only air containing noxious gas components is introduced into the purification device. The purifier main body 2 having two heat storage layers 1 at intervals has an inlet 6 of a noxious gas at its center. The gas in the purifier is reversed accordingly by reversing the flow of air by the blower 9. Numeral 37 designates a damper for discharging the purified air. FIG. 2B shows a state in which the discharge damper 37 is operated and the air flow in the blower is reversed from that in FIG. 2A. (7) indicates harmful gas components.

As shown in FIG. 2A, the discharge damper 37 on the right side is opened for a predetermined amount and the air flow by the blower 9 is operated from left to right. The hot gas containing the noxious gas component entering the gas flow path from the inlet 6 of the noxious gas circulates through this purifier system and mixes with the air which has passed through the heat storage layer 1 on the right, and enters the heat storage layer 1 on the left. Enter The noxious gas component is oxidized and circulated in the system by the blower 9 along the arrow 10. Air corresponding to the amount of air flowing from the inlet 6 of the noxious gas is discharged from the discharge damper 37. At this time, the heat storage layer 1 on the left side absorbs heat generated by hot gas or oxidative purification. After a certain time, the discharge damper 37 is operated and the blower 9 is reversed to reverse the flow of air. The state is 2b. By this configuration, air circulating in the system first passes through the heat accumulator layer 1 on the left side. At this time, the heat energy is taken away from the heat accumulator layer 1, and the temperature is increased and introduced into the heat accumulator layer 2 on the right side while being mixed with the noxious gas component 7 in the central portion of the purification device. Here, the toxic gas components are oxidized and passed through the floor 99 along with the arrow 10 along with the air, and a part of the harmful gas is discharged out of the system from the discharge damper 37 on the left side. At this time, the heat storage layer on the right side absorbs heat generated by hot gas or oxidative purification. By regularly repeating the states of Figs. 2A and 2B alternately, it is possible to decompose harmful gas components in a state where thermal energy is trapped inside the purification apparatus.

In addition, since all of the noxious gas components can pass through the high temperature heat storage layer, high purification efficiency can be obtained. In this embodiment, as in the first embodiment, the highest temperature portion of the heat storage layer is required to be 700-800 ° C even though it is based on the rectification of the noxious gas component, but the air supply is only the air containing the noxious gas component. The air that has passed through the heat storage layer on the side where the wind blows is slightly warmed up from the outside air, and since these energy can be reused, the purification operation can be performed even when the concentration of harmful gas is lower than that of the first embodiment.

Example 3

3A and 3B show the configuration of the noxious gas heat purification apparatus according to the third embodiment of the present invention.

In this third embodiment, the heating device 11 is provided between two heat storage layers in which noxious gas components are introduced in the first embodiment. In order to maintain the highest temperature part of the heat storage layer 1 at 700-800 ° C, the amount of flammable gas in the noxious gas component is stable at a high concentration and a high concentration (a large amount) of air balanced by this gas concentration is sent. I need to give. If low concentration of air flows for a long time compared to the concentration of gas, it is expected that the temperature of the heat accumulator layer is lowered to the extent that oxidative purification reaction of harmful components does not sufficiently occur, and a heating device is necessary to reactivate the reaction. Of course, this heating device is effective even when the concentration of harmful gas is low. The same heating apparatus can also be provided in the second embodiment.

Example 4

4A and 4B show the configuration of the noxious gas heat purifying apparatus according to the fourth embodiment of the present invention.

In the fourth embodiment, in the first embodiment, a catalyst 12 for promoting oxidation reaction is formed between two heat storage layers through which noxious gas components pass. By using such a catalyst 12, it is possible to lower the temperature at which the noxious gas component is purified. Usually, in the case of only the heat storage layer 1, the temperature needs to be maintained at 700-800 ° C. However, when the catalyst 12 is used, the treatment temperature is 250-350 ° C. In addition, even when the concentration of the noxious gas is lower than that of the first embodiment, the catalyst acts effectively, and the second embodiment can also be applied.

Example 5

5A and 5B show the configuration of the noxious gas heat purification apparatus according to the fifth embodiment of the present invention.

5A and 5B show the substances generating the noxious gas components in the center of the purifier body in the first, third and fourth embodiments, and simultaneously perform oxidative purification of the toxic gas components and heat treatment of the substances. will be. The purifier main body 2 having the two heat accumulator layers 1 has an air inlet 3 at both ends, and a heating device 11 and a catalyst 12 are provided between the heat accumulator layers 1. . The flow of air is reversed by the opening and closing operation of the blower 9 and the dampers 5 which suck air. 5A and 5B show a state in which the flow of air is reversed by operating the damper 5. The to-be-processed object 13 generate | occur | produces a noxious gas component by the heat processing. The material to be treated 13 can be considered in various fields such as food waste (kitchen waste), mud, dirt, waste oil, urine, animal and plant, long-term combustible waste, organic solvents, intermediate products such as ceramics, and heat-treated materials including organic binders. And can handle.

The details will be described with reference to FIG. 5A. Air is introduced into the flow path from the inlet 3 on the right side and is heated in the heat accumulator layer 1 on the right side and proceeds to the central portion of the purifier. The to-be-processed substance put into the center part between the heat accumulator layers 1 is heat-processed by the heating apparatus 11 and heated air, and simultaneously releases a noxious gas component. This harmful gas component and air are mixed, and oxygen in the air is oxidized and purified by the catalyst 12, and blower 9 follows the arrow 10 from the outlet 4 of the gas together with the air. Aspirated and discharged to the outside from the discharge port 8 of the gas. The heat storage layer 1 on the left side absorbs heat generated by the heating device 11 and thermal energy generated during oxidative purification. After a certain time, the damper 5 is operated to reverse the flow of air. The state is FIG. 5B. That is, air enters from the inlet 3 on the left side and passes through the heat storage layer 1 on the left side. At this time, the heat energy holding the absorption is taken away from the heat storage body layer 1 and heated up. The heated air is mixed with the noxious gas constituents generated from the object to be processed 13 at the central portion of the purification device, heated by the heating device 11 again, and purified by the catalyst. It is introduced into the heat storage layer 1 on the right side and proceeds along the arrow from the outlet 4 on the right side and is discharged to the outside from the gas outlet 8. At this time, the heat storage layer on the right side absorbs heat generated by the heating device 11 and thermal energy generated during oxidative purification. By repeating the state of Figs. 5A and 5B periodically and with high arc, the to-be-processed object 13 is efficiently heat-treated, and the harmful gas component generated from the to-be-processed object 13 is trapped in the state where thermal energy is trapped inside the purification apparatus. Can be disintegrated at the same time. Here, since all harmful gas components pass through the catalyst 12, high purification efficiency can be obtained.

Example 6

6 shows the configuration of the apparatus of the sixth embodiment of the present invention.

In this sixth embodiment, in the fifth embodiment, the temperature sensor 14 in which the heat treatment state of the to-be-processed object 13 generating the noxious gas component is provided near the opening / closing of the damper 15 or the input portion of the to-be-processed object. It is to control detection by. The heat treatment rate of the object is changed depending on the quantity of the object to be processed, the temperature of the air in the central part of the purification apparatus, the air volume, and the like, and the end time of the heat treatment is also changed. By controlling these factors by the damper 15 and the sensor 14, the heat processing purification apparatus with high reliability of efficiency can be obtained.

Example 7

7A to 7D show the configuration of the seventh embodiment of the present invention.

This embodiment has a configuration in which one end of two heat accumulator layers is disposed at the same level position in the gas flow passage at the lower portion of the slide damper 5. As shown in FIG. 7A-D, the heat storage layer 1 is formed in the gas flow path in the purifier body 2 together with the inlet 3 of air and the inlet 6 of noxious gas, and moves the blower. (9) and a plurality of dampers 5 which can be operated by one drive system for reversing the flow of air.

FIG. 7B shows the configuration of the cross-section of the A-B line in FIG. 7A, and FIGS. 7C and d show the configuration where the flow of the damper 5 is reversed from the states of FIGS. 7A and b to reverse the flow of air. (7) indicates the flow of harmful gases.

First, the operation of Figs. 7a and b will be described. Air passes from the upper inlet 3 to the heat accumulator layer 1 on the left side. And two compartments each having two heat storage layers underneath are in communication with the hot gas containing the noxious gas component coming from the inlet 6 of the noxious gas in the communicating portion 16, and the heat storage on the right side. Enter the body layer. The noxious gas component is oxidized and is raised upward along the arrow in the flow direction 10 of the gas with air and is sucked by the blower 9 from the gas outlet 4 and discharged from the discharge port 8. At this time, the heat storage layer on the right side absorbs heat of hot gas or thermal energy generated during oxidative purification. After a certain time, the slide damper 5 is operated to reverse the flow of air. The state is shown in Figs. 7a and b.

In this state, air enters from the inlet on the right side and passes through the heat storage layer on the right side first. At this time, heat energy is taken away from the heated heat storage body layer 1, and it heats up. In the lower part of the purifier, it is introduced into the heat accumulator layer 1 on the left side while being mixed with harmful gas components. The noxious gas component is oxidized and is discharged to the outside from the discharge port along the arrow from the outlet on the left side with the air.

8 shows a detailed configuration of the slide damper 5. 8A shows a planar phenomenon of the slide damper. 8B, the opening part on the same surface of the main body is shown, and the air inlet 21 and the gas outlet 22 are provided. The slide damper is composed of a plate 20, and two opening portions 18 for opening and closing the outlet 21 and the outlet 22 are formed. In the state of FIG. 8C, the slide plate 20 moves from the right side to the left side, the air inlet 21 is opened in the room of the right heat storage layer, and the gas outlet 22 is opened in the room of the heat storage layer. Indicates an open state. Of course the air comes in from the right room and from the left room.

In the state of FIG. 8D, the slide plate 20 again moves from left to right, the air inlet 21 is opened in the room of the left heat accumulator layer, and the gas outlet 22 is opened in the room of the heat accumulator layer to the right. Indicates an open state. The air then enters from the left room and from the right room. By the movement switching operation of the slide damper as described above, the flow direction of air can be reversed by one drive system.

Example 8

9 shows the configuration of the apparatus of the eighth embodiment of the present invention.

In FIG. 9, in the apparatus shown in the seventh embodiment, the substance 13 generating the noxious gas component is sealed in the lower part of the purifier body, and the heat treatment of the substance is carried out simultaneously with the purification of the toxic gas component. It is.

In Fig. 1, two heat storage layers made of a breathable ceramic molded body are shown. The heat accumulator layer 1, the air inlet 3, the heating device 11, and the catalyst 12 are disposed in the purifier body 2, and a blower 9 that sucks air into the gas flow path and A damper 5 is provided for reversing the flow.

FIG. 9B shows the structure of the A-B line cross section of FIG. 9A, and FIG. 9C, d shows the state which reversed the flow of air so far by operating the damper 5 from the state of FIG. 9A, b. (13) indicates the substance to be treated which generates harmful gas components by heat treatment.

First, the operation of this embodiment will be described using Figs. 9a and b. Air is introduced from the inlet 3 on the left side and proceeds to the bottom of the purifier while being heated in the heat accumulator layer 1 on the left side. The to-be-processed substance 13 sealed in the lower part of the apparatus main body is heat-treated by the heating apparatus 11 and heated air, and simultaneously releases a noxious gas component. This harmful gas component and air are mixed, and oxygen in the air oxidizes the harmful gas component by the action of the catalyst 12, and moves upward with the air to the upper right of the room, and the arrow (from the gas outlet 4) Along with 10) it is sucked by the blower 9 and discharged from the outlet 8 to the outside. In this process, the heat storage layer 1 on the right side absorbs heat generated by the heating device 11 or thermal energy generated during oxidative purification. After a certain time, the slide damper 5 is switched to reverse the flow of air. The state is shown in Figs. 9c and d. As shown in the figure, air is introduced from the inlet 3 on the right side and passes through the heat storage layer 1 on the right side. At this time, heat energy is taken from the heated heat storage layer 1 and heated up. The heated air is mixed with the noxious gas constituents generated from the object 13 under the purifier body, heated by the heating device 11 again, and purified by the catalyst 12. It is introduced into the heat accumulator layer 1 on the left side and proceeds along the arrow 10 from the outlet 4 on the left side and is discharged to the outside from the discharge port 8. At this time, the heat storage layer 1 on the left side absorbs heat generated by the heating device 11 or thermal energy generated during oxidative purification. By repeatedly repeating the states of 9a, b, c and d in this manner, the object to be treated 13 is efficiently heat treated, and most of the thermal energy at that time is trapped inside the purification apparatus and is removed from the object. It can decompose harmful gas generated.

In addition, since all harmful gas components pass through the catalyst, high purification efficiency can be obtained.

In this embodiment, the heat treatment state of the workpiece 13 generating the noxious gas component can be controlled by the opening and closing of the damper 15 and the temperature sensor 14. The heat treatment rate of the workpiece varies depending on the amount of the workpiece, the temperature of the air in the central portion of the purification apparatus, and the air volume, and the end time of the heat treatment also changes. By controlling these factors by the output signals of the damper 15 and the sensor 14, a highly efficient heat treatment purification apparatus can be obtained.

Example 9

10 shows the configuration of a ninth embodiment of the present invention.

In the ninth embodiment, the to-be-processed object 13 that generates the noxious gas component in the sixth embodiment is inductive, and the liquid flow path 32 is supplied by the liquid supply unit 32 by the output signal of the temperature sensor 14 or the like. It is configured to automatically feed the center of the purifier body from (31). The input is controlled by the opening and closing of the damper 15 and the output signal from the temperature sensor 14, so that a highly efficient heat treatment and purification device can be obtained.

Also in the eighth embodiment, it is possible to have the same detection and control structure as in the ninth embodiment.

Example 10

11 shows the configuration of the tenth embodiment of the present invention.

In the tenth embodiment, the to-be-processed object 13 generating the noxious gas component in the sixth embodiment is placed in the material container 34 and introduced into the room when necessary from the opening / closing door 33 of the sealed room. I would have to.

The same configuration as that in the eighth embodiment is also possible.

Example 11

12 shows a configuration of an eleventh embodiment of the present invention.

In this eleventh embodiment, the purifying device 2 shown in the first embodiment is directly connected to the heat treatment conveyor 35, and the harmful gas component generated from the object to be processed 37 on the heat treatment conveyor 35 ( 7) was put directly to cleanse. Therefore, the purification apparatus can be widely used for a dryer, a sintering furnace, etc., and the same structure can be used for the purification apparatus of the Example shown to 2nd, 3rd, 4th, and 7th degree.

As is apparent from the description of each of the above embodiments, in the heat storage type heat treatment purifier of the present invention, since the thermally decomposable or flammable harmful gas component is introduced between two heated heat storage layer, adsorption of harmful components by the heat storage layer. However, when the gas flow direction is reversed, unrefined harmful components are not discharged, energy saving is achieved at a fixed rate, and a highly reliable purification device can be obtained. In addition, the heat treatment is required, and the heat treatment can also be efficiently performed on the substance which generates the noxious gas component during the treatment, and at the same time, the noxious component can be purified.

Claims (16)

A regenerative heat treatment and purification device having a structure in which two breathable heat storage layers are disposed at intervals in a gas flow passage inside the apparatus main body, and the gas flows inverted at regular intervals in the gas flow passage. A thermally decomposed heat treatment and purification device, comprising introducing a thermally decomposable or flammable noxious gas component to be treated from the gas passage. The heat storage type purification apparatus for heat storage according to claim 1, wherein a heating device for heating the noxious gas component is provided between two heat storage layers. The heat storage purifying apparatus according to claim 1, wherein a catalyst for decomposing or burning said noxious gas component is formed between two heat storage layers. The heat storage type purifying apparatus according to claim 1, wherein the breathable heat storage layer is made of a ceramic having excellent corrosion resistance. The heat storage type purifying apparatus according to claim 1, wherein the breathable heat storage layer is made of briquette molding having a small gap between the ceramic particles and a plurality of through holes for ventilation. The heat storage purifying apparatus according to claim 4, wherein the heat storage layer is made of particulate alumina. The heat storage type purification apparatus for heat storage according to claim 1, wherein a damper for adjusting an introduction amount of the harmful gas component is provided at a position of the gas flow path where the thermally decomposable or combustible harmful gas component is introduced. The heat storage purification apparatus according to claim 1, wherein the heat decomposable or flammable noxious gas component or the material generating the heat decomposable or flammable noxious gas component is closed between two heat storage layers. . 8. The method according to claim 7, wherein at least a portion of thermal energy required for pyrolysis or combustion is supplied from a heating device and a heat storage layer of the purifier body by heating or drying the material to generate a thermally decomposable or flammable noxious gas component. Regenerative heat treatment purifying apparatus, characterized in that. 8. A material according to claim 7, wherein a substance which is dried or combusted by heating to generate a thermally decomposable or flammable noxious gas component is closed between the two heat storage layers to detect the degree of drying or combustion of the substance. A heat storage type purification apparatus, characterized in that the temperature sensor is installed. 8. The substance according to claim 7, wherein the substance which is dried or combusted by heating to generate pyrolytic or flammable harmful gas components includes food waste (kitchen waste), mud, dirt, waste oil, urine, animals, plants, organs, flammable waste, organic matter. A heat storage purification apparatus, characterized in that any one of a heat treatment material including a solvent, an intermediate product of ceramic, and an organic binder. The heat storage type heat treatment according to claim 1, wherein the apparatus main body is directly installed in an apparatus main body that generates heat decomposable or flammable harmful gas components such as a dryer, a heat treatment machine, and a kiln, or installed at an outlet of the exhaust gas. Purifier. In the heat storage type purifying apparatus, which is formed into two heat storage layers at intervals in the gas flow passage inside the main body of the apparatus, and introduces thermally decomposable or flammable harmful gas components to be treated from between the two heat storage layers. The two heat storage layers are arranged so that their one ends are at the same level position, and a damper having a plurality of openings for switching the gas flow path operated by one drive system is provided, and the dampers are connected to the gas flow paths. A heat storage type purifying apparatus, characterized in that the gas flow direction is inverted. The substance according to claim 13, wherein the substance which generates a thermally decomposable or flammable noxious gas component by drying or burning by heating is a fluid substance, and the temperature or capacity of the substance generating the noxious gas component is detected by a sensor. And a heat generating purification apparatus for supplying a substance for automatically generating the harmful gas component by an output signal of a sensor. The heat storage type heat treatment according to claim 13, wherein a substance which generates a heat decomposable or flammable noxious gas component by drying or burning by heating is put into a container and put into a gas flow path between the two heat storage layers when necessary. Purifier. The heat storage type according to claim 13, wherein the apparatus main body is installed directly at the apparatus main body which generates heat decomposable or flammable harmful gas components such as a dryer, a heat treatment machine, a kiln, or at an exhaust gas outlet thereof. Heat treatment purifier.