KR20010103212A - Deodorization apparatus - Google Patents

Abstract

The present invention relates to a deodorizing apparatus that can achieve a complete deodorizing effect with low energy by preheating the steam (containing odor component) generated in the food waste drying fermentation process sequentially through a plurality of members. A third housing installed inside the housing and having a plurality of partition walls installed therein, the interior space being divided into a plurality of compartments; A steam inlet pipe connected to the second housing to supply external steam to a space between the second housing and the third housing; A plurality of heating pipes, each of which is located in each of the compartments, and has heating means connected to an external power supply means, respectively, and connected to each other; It is connected to the outermost heating pipe and includes a gas discharge pipe for discharging the gas from which the odor component is burned out. In the deodorizing apparatus of the present invention, the steam introduced through the steam inlet pipe flows through the space between the second housing and the third housing, and then sequentially passes through each compartment, and the steam passing through the last compartment is another outermost side. The openings formed in the heating pipes are sequentially introduced into each of the heating pipes to be in direct contact with and heating the heating means, thereby completely burning the odor component contained in the steam.

Description

Deodorization apparatus

The present invention relates to a deodorizing device, and more particularly, to a deodorizing device that can remove the odor by heating and burning the steam containing the malodorous component in the course of several steps.

In a dry fermenter, a device for treating food waste, steam is formed during the dry fermentation of food waste, which contains volatile organic compounds. This organic substance is a odor generating component and causes odor generation, which is the biggest problem of a dry fermenter.

Direct combustion method and catalytic oxidation method are used as the deodorizing method to remove odor components. However, the direct combustion method has excellent deodorizing effect and can remove a wide range of odor components such as flammable odor components, hydrogen sulfide and ammonia, and so on. It has the advantage of being applied overall.

The direct combustion method is a method of oxidatively decomposing and deodorizing steam (gas) containing malodorous components at a high temperature (600 ° C. or higher). Depending on the composition ratio or content of the malodorous component, the set temperature in the furnace and the residence time of the gas vary, but in general, the gas containing the malodorous component passes through a heating device of 700 to 800 ° C. over 0.5 seconds. This is burned and removed.

However, the temperature of the steam generated in the dry fermenter is about 90 to 100 ℃, it takes a lot of energy to burn the odor component by heating the steam directly, so many problems in consideration of the economic effect Have

The present invention provides a deodorizing device that can achieve a complete deodorizing effect with low energy by preheating the steam by sequentially passing the steam (in the state containing odor component) generated in the food waste drying fermentation process in a plurality of members Its purpose is to.

Deodorizing apparatus according to the present invention for realizing this object, the third housing is installed in the second housing, the interior of the plurality of partitions are divided into a plurality of compartments; A steam inlet pipe connected to the second housing to supply external steam to a space between the second housing and the third housing; A plurality of heating pipes, each of which is located in each of the compartments, and has heating means connected to an external power supply means, respectively, and connected to each other; It is connected to the outermost heating pipe and includes a gas discharge pipe for discharging the gas from which the odor component is burned out.

In the deodorizing device according to the present invention, the steam introduced through the steam inlet pipe flows through the space between the second housing and the third housing, and then sequentially passes through each compartment, and the steam passing through the last compartment is another maximum. By sequentially entering the inside of each heating pipe through the opening formed in the outer heating pipe and being heated in direct contact with each heating means, the vapor is gasified and the contained odor component is completely burned out.

In addition, the deodorizing apparatus according to the present invention further includes a first housing outside the second housing, a heating means is installed in a space between the first housing and the second housing, and a thermal medium oil having excellent thermal conductivity is stored. The air introduced into the space between the second housing and the third housing is preheated.

Of the heating pipes located in each compartment, except for the outermost heating pipe, the connecting pipes for connection with the heating pipes adjacent to both ends thereof are fixed, so that steam flows through the entire length of the heating pipe and then adjacent heating. It is introduced into the pipe to maximize the heat absorption effect.

The heating means used in the present invention is a heating wire wound in the form of an electrode rod or a coil connected to a power source, but is not limited thereto.

Hereinafter, with reference to the accompanying drawings of the present invention will be described in detail.

1 is a perspective view of the present invention.

2 is a cross-sectional view taken along the line A-A of FIG.

3 is a cross-sectional view taken along the line B-B of FIG. 2.

Figure 4 is a graph showing the temperature of the steam changed when passing through each heating pipe constituting the present invention.

1 is a perspective view of the present invention, Figure 2 is a cross-sectional view taken along the line AA of Figure 1, Figure 3 is a cross-sectional view taken along the line BB of Figure 2, the deodorizing device 100 according to the present invention Includes a first housing 10 which is an outer housing and a second housing 20 which is an inner housing. The first housing 10 and the second housing 20 are hermetically sealed, and a thermal medium oil (not shown) having excellent thermal conductivity is stored in the space between the housings 10 and 20. Heating means 11, for example, a heater is provided for heating the heat.

Another third housing 30 is installed inside the second housing 20, and a constant space is formed between the third housing 30 and the second housing 20. Here, in FIG. 1, the first housing 10 is not shown for convenience and the cover member of the third housing 30 is removed to illustrate the internal configuration of the third housing 30.

In the interior of the third housing 30 two partitions 34 and 35 are fixed, which intersect the interior space, and thus three compartments 31, 32 and 33 of the interior space of the third interior housing 30; Hereinafter, for convenience, the first, second and third compartments are referred to). The partitions 34 and 35 have one end opposite to each other spaced apart from the inner wall of the third housing 30.

Each compartment 31, 32, and 33 is provided with the heating pipe 41, 42, and 43 in which the heating means was mounted inside. Hereinafter, for convenience, the heating pipe accommodated in the first compartment 31 is referred to as the first heating pipe 41, the heating pipe accommodated in the second compartment 32 as the second heating pipe 42, and the third compartment 33. The received heating pipe is called a third heating pipe 43. Each heating pipe 41, 42 and 43 is made of a material having excellent thermal conductivity and excellent corrosion resistance to organic matter, for example, SUS-301S.

One end of each heating pipe 41, 42, and 43 is fixed to the wall of the second housing 20 through one wall of the third housing 30, and another end of It is separated from other walls. Inside each heating pipe 41, 42 and 43 is equipped with heating means 51, 52 and 53, for example a heater, each heating means 51, 52 and 53 having flanges 61, 62 and 63. And auxiliary pipes 31A, 32A and 33A to power supply means (not shown) drawn into the respective heating pipes 41, 42 and 43.

On the other hand, the first connecting pipes 36 are fixed to the front ends of the first and second heating pipes 31 and 32, and thus the first and second heating pipes 31 and 32 are connected to each other. In addition, the second connecting pipe 37 is fixed to the rear ends of the second and third heating pipes 32 and 33, and thus the second and third heating pipes 32 and 33 are connected to each other. Here, for convenience, the direction in which the power supply means is drawn in, i.e., where the flanges 61, 62, and 63 are mounted, is referred to as "front", and the opposite side is referred to as "back".

At the front end of the second housing 20, steam inlet for supplying steam discharged from the dry fermenter into the deodorizing device 10 of the present invention, that is, the internal space of the second housing 20 and the third housing 30. The pipe 71 is fixed, and the gas discharge pipe 72 is connected to the rear end of the first heating pipe 41. The gas discharge pipe 72 is exposed to the outside through the third housing 30, the second housing 20, and the first housing 10.

The flow path of the steam containing the function and malodorous component of the present invention having the above configuration will be described with reference to the drawings.

First, steam containing a malodorous component at a temperature of about 90 to 100 ° C. (hereinafter referred to as “steam”) generated in a dry fermenter (not shown) is connected to the second housing 20 through the steam inlet pipe 71. It flows into the space formed between the 3rd housing 30 (henceforth "2nd space S2"). The steam generated in the dry fermenter is introduced at a constant pressure and speed by means of forced flow means, for example blowers. The steam introduced into the second space S2 flows through the second space S2 as indicated by arrows A1, A2, A3, and A4. Here, the extended wall is located at a portion corresponding to the steam inlet pipe 71 of the third housing 30, so that the introduced steam does not flow directly into the first compartment 31.

As described above, since the heated thermal medium oil exists in the space between the first housing 10 and the second housing 20 (hereinafter referred to as "first space S1"), the second space S2 The temperature of the steam flowing through the first rise. Therefore, the steam whose temperature is first increased is flowed one round through the second space S2 and then into the first compartment 31 as indicated by arrow B1 through the opening H1 formed at the tip of the first compartment 31. Inflow. The steam introduced into the first compartment 31 flows around the first heating pipe 41, as indicated by arrow B2, at which time the heating means 51 mounted in the first heating pipe 41 is generated. Heat is absorbed by the flowing steam, thus raising the temperature of the steam. The steam then flows into the second compartment 32 (arrow C1) through the space between the tip of the second partition 34 and the front wall of the third housing 30.

The steam introduced into the second compartment 32 passes around the second heating pipe 42, where the steam absorbs heat generated by the heating means 52 mounted in the second heating pipe 42, and The temperature rises further. As indicated by the arrow D1, steam enters the third compartment 33, and in the heating means mounted in the third heating pipe 43 in the process of flowing the space inside the third compartment 33 (arrow D2). Absorb the heat generated.

The steam flowing through the third compartment 33 flows into the third heating pipe 43 through the opening H2 formed in the front portion of the third heating pipe 43. The steam introduced into the third heating pipe 43 is in direct contact with the heating means 53 installed therein so that the temperature is further raised (about 200 ° C).

The heated steam flows into the second heating pipe 42 through the second connecting pipe 37 connected with the second heating pipe 42 after flowing inside the third heating pipe 43. The steam flowing inside the second heating pipe 42 is in direct contact with the heating means 52 installed therein so that the temperature rises higher (about 400 ° C.) than when it is discharged from the third heating pipe 43. Of course.

The steam heated in the second heating pipe 42 is then introduced into the first heating pipe 41 through the first connecting pipe 36 to which the first heating pipe 41 is connected. The steam flowing inside the first heating pipe 41 is in direct contact with the heating means 51 installed therein, so that the temperature is higher than when it is discharged from the second heating pipe 42, and the first heating pipe The temperature of steam in (41) shows the highest point (about 600 degreeC or more).

In the present invention, the steam generated in the dry fermenter is the second space (S2), the first compartment 31, the second compartment 32, the third compartment between the second housing 20 and the third housing (30). The reason why the inside of the 33 and the third heating pipe 43, the second heating pipe 42, and the first heating pipe 41 are sequentially passed is that each heating pipe 43, 42 is gradually increased by increasing the temperature of the steam. And 41) to reduce energy for heating the steam flowing therein. That is, by preheating the steam immediately before the steam is introduced into each of the heating pipes 43, 42, and 41, the energy required for heating the steam in each step can be reduced.

As described above, the steam introduced into the deodorizing device 10 according to the present invention (with a malodorous component contained therein) is a high temperature third heating pipe, a second heating pipe and a first heating pipe each equipped with heating means. (43, 42, and 41) In the course of passing through the internal space sequentially the temperature is gradually increased, especially in the first heating pipe 41, the temperature is 600 ℃ or more, the organic matter contained in the steam Burn out completely. The gas from which the organic matter is completely burned, that is, the odor component has been removed (with water removed under high temperature) is discharged to the outside through the gas discharge pipe 72 connected to the first heating pipe 41.

On the other hand, in order to completely remove the malodorous components contained in the steam as described above, it is preferable to pass through the space maintaining the temperature of 600 ℃ or more in about 0.5 seconds, so in the present invention, the temperature of the steam reaches the highest point The space inside the first heating pipe 41 has to pass through the steam at a time of 0.5 seconds. The passage time of the steam can be controlled, which will be described through Equation 1 below.

Here, t is the time (seconds) for the steam to pass through the first heating pipe 41, L is the length of the first heating pipe (m), Q is the flow rate of the discharged gas (m ³ / sec), A is The cross-sectional area (m ² ), V of the first heating pipe 41 is the velocity (m / sec) of the gas discharged.

As a result, the time for the steam to pass through the inside of the first heating pipe 41 depends on the length of the first heating pipe 41, the flow rate of the discharged gas, the cross-sectional area of the first heating pipe 41, and the speed of the discharged gas. By adjusting it can be maintained for 0.5 seconds, in particular, the flow rate and speed of the discharged gas can be sufficiently controlled by adjusting the amount of steam introduced into the apparatus by adjusting the operating conditions of the blower.

FIG. 4 is a graph showing the temperature of steam that changes when passing through each of the heating pipes 43, 42, and 41 constituting the present invention, and heating means 53 mounted in each of the heating pipes 43, 42, and 41. FIG. , 52 and 51) show the temperature of the steam measured with the operating.

The conditions as described above were set so that the time for the steam to pass through the inside of the first heating pipe 41 was maintained for 0.5 seconds or more, and the temperature of the steam in the first heating pipe 41 was maintained at 700 ° C. Under such conditions, the organic substance causing odor is completely burned in the first heating pipe 41, and thus, the gas discharged from the deodorizer 10 is pure air.

The present invention as described above passes the inside of the first heating pipe to maintain a temperature of 600 ℃ or more through the steam containing the malodor component for more than 0.5 seconds to completely burn the organic matter generating odor, finally pure air only external To be discharged. In addition, the gas generated in the dry fermenter is passed inside the second space, the first compartment, the second compartment, the third compartment and the third heating pipe, the second heating pipe, the first heating pipe between the second housing and the third housing. The temperature of the steam is gradually increased by passing it sequentially, so the energy required to heat the preheated steam to the set temperature in each heating pipe is equal to the energy required to directly heat the steam generated in the dry fermenter. Of course it is greatly reduced compared to.

In the above description, the present invention has been described using, for example, a dry fermenter in which malodorous components are generated, but of course, the present invention can be applied to removing malodorous components generated in contaminated water such as livestock wastewater and factory wastewater.

In addition, in this description, the three compartments are divided by two partitions and three heating pipes are placed in each compartment. However, the number of compartments and heating pipes is not limited thereto. 2, the heating means mounted in each heating pipe is shown in the form of an electrode rod, but it is a matter of course that the heating wire may be wound in a coil form.

Claims (4)

In the deodorizing device for removing odor components A third housing installed inside the second housing, wherein a plurality of partitions are installed therein, the inner space is divided into a plurality of compartments, one end of each of which is open, and a corresponding end of the adjacent partitions is sealed; A steam inlet pipe connected to the second housing to supply external steam to a space between the second housing and the third housing; A plurality of heating pipes, each of which is located in each of the compartments, and has heating means connected to an external power supply means, respectively, and connected to each other; It is connected to the outermost heating pipe and includes a gas discharge pipe for discharging the odor-free gas to the outside, the steam introduced through the steam inlet pipe flows through the space between the second housing and the third housing Thereafter, each compartment passes sequentially, and the steam passing through the last compartment is sequentially introduced into each heating pipe through an opening formed in another outermost heating pipe and heated in direct contact with each heating means to vaporize the gas. Deodorizing apparatus characterized in that the odor component contained is completely burned out. The deodorizing apparatus of claim 1, further comprising a first housing outside the second housing, wherein a heating means is installed in a space between the first housing and the second housing, and a thermal medium oil having excellent thermal conductivity is stored. Deodorizing device, characterized in that to preheat the air introduced into the space between the second housing and the third housing. According to claim 1, wherein the heating pipes except for the outermost heating pipes of the heating pipes are connected to each other for the connection of the heating pipes adjacent to both ends thereof, the steam introduced into any one of the heating pipes Deodorizing apparatus, characterized in that flowing into the adjacent heating pipe after flowing the entire length of the heating pipe. The deodorizing apparatus according to claim 1, wherein the heating means is any one of an electrode rod connected to a power source or a heating wire wound in the form of a coil.