KR102188829B1 - A Deodorizing Apparatus from odor gas - Google Patents

Abstract

The present invention relates to an apparatus for reducing odor of odor gas. The apparatus for reducing odor of malodorous gas according to the present invention comprises: a deodorizing tank for receiving water; An inlet pipe communicating with the deodorization tank and extending upward in the standing direction; An outlet pipe communicating with the deodorization tank and extending upwardly in parallel with the inlet pipe; A gas supply unit for supplying malodorous gas to the inlet pipe; And it characterized in that it comprises a water sprinkler for spraying the water in the deodorization tank to the odor gas passing through the inlet pipe.

Description

A deodorizing apparatus from odor gas

The present invention relates to an odor reduction device for reducing odors generated in the process of reprocessing livestock excrement such as poultry farms and pig houses.

There is a need for a technology to reprocess the excrement that livestock physiologically discharges every day into feed, fertilizer, compost, or recycled raw materials required by farms.

The odor gas generated in the process of reprocessing the feces excreted by livestock and reprocessing it as feed, fertilizer, compost, and farmhouse recycled raw materials has a problem that not only adversely affects the environment, but also causes great pain to workers and farmers.

It is an object of the present invention to provide a odor gas odor reduction device that reduces the odor of odor gas generated in the process of reprocessing livestock excrement generated in livestock sheds such as poultry farms or pig houses.

In order to achieve the object as described above, the present invention provides an apparatus for reducing odor of odor gas, comprising: a deodorizing water tank for accommodating water; An inlet pipe communicating with the deodorization tank and extending upward in a standing direction; An outlet pipe communicating with the deodorizing water tank and extending upwardly in parallel with the inlet pipe; A gas supply unit for supplying malodorous gas to the inlet pipe; And it characterized in that it comprises a sprinkler for spraying water in the deodorization tank to the odor gas passing through the inlet pipe. In the present invention, a high-temperature odor gas is input from one side of the deodorization tank, and at this time, water from the deodorization tank is sprayed to primarily reduce odor.

The odor reduction vertical input tube includes: a cooling air generator for injecting low temperature air to mix with the input high temperature air; A water circulation pump for sucking the water accommodated in the water receiving unit; And a plurality of multi-stage shower devices connected to the water circulation pump and spraying the water into the input high-temperature air. The hot, smelly air is cooled first. After that, the odor is removed through a multi-stage shower device.

A cooling air supply unit for supplying cooling air to the malodorous gas passing through the inlet pipe is further included, and the water spray unit includes a plurality of nozzles and sprays in multiple stages. The temperature of the odor gas is lowered using the cooling air supply. The water spray unit includes a plurality of nozzles to effectively reduce odor with a multi-stage shower.

A filter unit including at least one filter is mounted in the outlet pipe. The filter installed in the outlet pipe reduces odor step by step by installing a primary filter upstream and a secondary filter downstream based on the flow of gas.

The outlet pipe is characterized in that a mist spraying device for spraying mist by mixing the water and chemicals toward the air discharged to the outlet side is installed. When chemicals are mixed with water and discharged with air, mist is sprayed. Such mist spraying is more effective in reducing the odor of odorous gases.

Further comprising a dust remover for removing solid dust from the odor gas flowing into the inlet pipe, the dust remover, Cyclone fan by forming a vortex flow of the odor gas, the solid content by the vortex formed by the cyclone fan It characterized in that it comprises a solid dust collecting unit for collecting dust and an output tube for outputting a gas by removing the solid dust from the odor gas. It is more effective to remove solid dust by passing through a dust remover before putting it into the odor reduction device of odor gas.

The apparatus for reducing odor of odor gas according to the present invention having the above configuration effectively reduces odor and discharges clean gas to improve the environment of livestock farms.

1 is a block diagram of an apparatus for reducing odor of odor gas according to the present invention.
Figure 2 is an enlarged cross-sectional view of the main part of Figure 1 of the odor gas odor reduction device according to the present invention.
3 is a cross-sectional view showing a first embodiment of a dust remover among the apparatus for reducing odor gas odor according to the present invention.
4 is a broken perspective view showing a second embodiment of a dust remover among the apparatus for reducing odor of odor gas according to the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Features and advantages of the present invention become more apparent from the description of the preferred embodiments based on the accompanying drawings.

1 is a block diagram of an apparatus for reducing odor of odor gas according to the present invention.

In the poultry farm 10 or in the barn where large amounts of livestock such as pigs are raised, excrement that livestock physiologically discharges every day occurs. It is advantageous in terms of economy and environment to reuse such animal excrement by reprocessing it as feed, fertilizer, compost, or recycled raw materials required by farms.

Livestock excrement generated in the poultry farm 10 is moved to the fermentor 20 by an automatic or manual method and fermented at a high temperature. A heater (not shown) is installed inside the fermentor 20 to increase a certain temperature, and a material for fermentation is added, and then fermented for about 7 days.

Livestock excrement in the fermentor 20 changes in temperature according to the fermentation time, and the degree of odor varies according to the temperature. Usually, the temperature rises most in about 3 to 4 days and reaches a temperature of 80 to 85 degrees, and at this time, the odor reaches its peak. After 6 days, the temperature decreases and the excrement is fermented and can be used as compost. After 6 days, new excrement is added to the fermentor 20 and the fermentation cycle is repeated.

The apparatus 1 for reducing odor gas of the present invention operates in all processes of fermentation for 6 days, and discharges clean air to the outside after removing odors in all processes from the beginning of excretion input to completion of fermentation. That is, in the course of the 6-day fermentation cycle, odors of 3 to 4 days are most actively removed.

The temperature in the fermentor 20 is usually maintained at a high temperature and high pressure of 85 degrees or higher, and gases (gases) such as ammonia, hydrogen sulfide, amines, mercaptans, and carbonyl compounds are generated in the process of fermentation, and these gases have a severe odor. Therefore, there is a need to reduce and discharge the odor of the odor gas generated in the fermentor 20.

In the present invention, solid dust contained in the odor gas is first removed by using a dust remover 40 and 30 such that the odor gas is then introduced into the fermentor 20. The detailed structures of the dust removers 40 and 30 will be described with reference to FIGS. 2 and 3.

The deodorization tank 100 includes a water receiving unit 102 receiving a certain level of water (W) and an odor gas receiving unit 101 receiving a odor gas. Water (W) accommodated in the deodorization tank 100 may be tap water at room temperature or water (W) obtained by mixing a certain amount of a chemical agent as a catalyst with tap water.

An inlet pipe 108 extending upward in the standing direction is connected to the input side of the deodorization tank 100 in order to introduce malodorous gas.

In addition, an outlet pipe 110 extending upwardly in parallel with the inlet pipe 108 is installed on the output side of the deodorizing water tank 100 in communication with the inlet pipe 108 and the odor gas receiving portion 101.

The solid dust is removed through the dust removers 40 and 30, and the high-temperature odor gas is output through the output pipe 38.

The high-temperature odor gas is connected to the inlet pipe 108 through the gas supply unit 104. The gas supply unit 104 is connected to the inlet pipe inlet 107 of the inlet pipe 108 without leakage, and a suction fan for inhaling air may be installed.

When the room temperature cooling air generated through the cooling air generator 120 is introduced into the inlet pipe 108, it is mixed with a high temperature odor gas to cool and convert the high temperature to a low temperature, and is introduced into the deodorization tank 100.

Room temperature air input through the cooling air generator 120 is input in a normal direction toward the side wall of the inlet pipe 108 in a cyclone method to form a tornado or helical vortex. Increases contact opportunities. Therefore, the cooling effect is improved by increasing the time for the low-temperature cooling air to contact the odorous gas.

In general, the cooling air generating unit 120 may use a fan for inputting air at room temperature. The temperature in Korea is sufficiently low in winter, but in summer, the temperature is around 30 degrees, and the cooling efficiency is relatively reduced because the temperature is lower than the temperature inside the fermenter 20, or considerably hotter. Therefore, it is more necessary to lower the temperature of the water using the refrigeration device 140 in summer.

The water (W) in the deodorization tank 100 is sucked by the water circulation pump 130 and sprayed toward the odor gas flowing into the inlet pipe 108 by the multi-stage catalyst spraying devices 131 to 135. The spraying direction of the multi-stage catalyst spraying devices 131 to 135 is more effective in removing odor when the spraying nozzle is drawn into the inlet pipe 108 and then directed downward. Alternatively, it is possible to install the nozzles on the side walls so that they meet each other at an angle of 90 degrees to the odor gas.

The multi-stage catalyst spraying device 131 to 135 is a deodorant for reducing odor, and it is possible to spray a chemical agent indicated by catalyst 1 with water (W). The deodorant reacts with water (W) to neutralize it by reacting with gases such as ammonia, hydrogen sulfide, amine, mercaptan, and carbonyl compounds that cause odor, and dissolves in water (W) to remove odors from the gas.

In the multi-stage catalyst sprinkling device 131 to 135, in the embodiment of the present invention, five sprinkling devices are sequentially installed at different heights, but the present invention is not limited to this embodiment. The installation location of the sprinkling devices 131 to 135 can be variously modified. Installing the sprinkler device in multiple stages has the effect of saving space by using the inlet pipe 108 formed vertically.

The amount of the catalyst and the type of catalyst used in the multi-stage catalyst spraying devices 131 to 135 are not limited to the embodiments of the present invention, and various input amounts and types may be used. It is possible to use a variety of catalysts depending on the type of livestock such as poultry farms or pig houses and the type of excrement from feed.

Although the water (W) in the deodorization tank 100 is formed in a sufficient amount, it may rise to a certain temperature per hour due to the influence of the high temperature contained in the gas. A temperature sensor (not shown) is provided in the deodorization tank 100, and when the sensing temperature of the temperature sensor is higher than a certain temperature, the refrigeration device 140 is driven to the refrigerant pipe 142 provided in the deodorization tank 100. A low-temperature refrigerant flows to lower the temperature of the water (W) in the deodorization tank 100.

Therefore, the temperature of the water (W) in the deodorization tank 100 is always maintained at a low temperature sufficient to reduce odor through a multi-stage catalyst shower.

The installation location of the refrigerant pipe 142 may be installed at various locations according to the structure of the deodorization tank 100. In the case of FIG. 1, it is concentrated on the left side of the deodorization tank 100, but it is preferable to install it evenly in the entire space of the deodorization tank 100.

It is preferable that the temperature of the water (W) in the deodorization tank 100 using the refrigeration device 140 is maintained at around 20 degrees, which is the room temperature. The refrigeration device 140 is operated for more hours in summer than in winter.

In addition, the refrigeration device 140 is preferably driven when the fermentation reaches its peak in connection with the fermentation cycle of the fermentor 20.

Due to the high temperature gas, it is necessary to quantitatively control the amount of water (W) in the deodorization tank 100 by installing a level sensor (not shown) to keep the level of water (W) in the deodorization tank 100 constant. It is preferable because it properly responds to the rate at which the temperature of water increases. However, the present invention is not limited to the capacity and level of water (W).

After removing the solid dust by using the dust remover (40, 30), a high-temperature odor gas is input, but through the odor reduction process, a mist such as debris may be immersed in the deodorization tank (100). The immersed mist can be removed to the outside of the dewatering tank 100 through the interchangeable mist removing unit 160, washed the debris, and then re-installed to always remove the odor in an optimal state.

The water (W) of the deodorization tank 100 can be used by draining the entire water (W) after operating for a certain period of time and introducing new water (W). This corresponds to the process of regular maintenance and repair. At this time, chemicals can be mixed as a catalyst.

On the other side of the inlet pipe 108 of the deodorization tank 100, an outlet pipe 110 is installed extending upwardly in parallel with the inlet pipe 108. Similarly, the use of vertical pipes has the effect of saving space.

The outlet pipe 110 is composed of a filter mounting part 106 installed on the upstream side in the flow direction of the gas and installed on the lower side in the gravitational direction, and a mist spraying part 105 on the downstream side and an upper side of the filter mounting part 106.

The filter mounting part 106 is equipped with a polling filter 154 on the lower side and a thermistor filter 152 on the upper side. The polling filter 154 and the terminator filter 152 all correspond to the filter unit 150.

The installation positions of the polling filter 154 and the thermistor filter 152 may be mounted at positions interchanged with each other upstream and downstream in the gas flow direction.

It is preferable that the polling filter 154 and the thermistor filter 152 all react with the odor gas and react with gases such as ammonia, hydrogen sulfide, and amine, which are the causes of the odor gas, and absorb it.

The polling filter 154 is a ring-type filter and is manufactured by sintering a powder material such as plastic or stainless into a porous form, and corresponds to a odor reduction filter manufactured for the purpose of transmitting air and adsorbing odors.

The thermistor filter 152 corresponds to a filter that normally passes air but blocks moisture such as water.

Accordingly, the gas passing through the filter unit 150 of the present invention discharges dry gas having both moisture and odor reduced into the atmosphere.

An additional catalytic sprinkler 138 is installed between the polling filter 154 and the terminator filter 152 to remove odor by reacting with gases that are sources of odor contained in the odor gas.

The additional catalyst sprinkling device 138 adopts a structure in which a pipe for receiving the circulated water extends to the inside of the filter mounting unit 106 and a plurality of nozzles are installed in the extended pipe so that each nozzle sprinkles downward. Since the filter mounting portion 106 usually has a diameter larger than that of the inlet pipe 108, the catalyst sprinkler 138 covers the entire diameter by spraying a plurality of them downwardly.

The catalytic spraying device 138 is connected to the water circulation pump 130 to receive water from the deodorization tank 100.

Multi-stage mist spraying devices 136 and 137 are installed on the upper side of the thermistor filter 152 to further reduce odor with respect to the dry gas that has passed through the filter unit 150.

The mist spraying devices 136 and 137 are pipes inserted into the mist spraying part 105 of the outflow pipe 110, and the nozzle sprays the catalyst in a downward direction. Different chemicals, such as catalyst 3 and catalyst 4, are injected and misted. Mist spraying is sprayed in a misty manner by injecting chemicals as a catalyst into the high-pressure air introduced from the outside. The odor-causing gas contained in the gas reacts with the sprayed catalyst and finally the odor is removed. The gas outlet of the outlet pipe 110 is indicated by the outlet pipe outlet 109.

Water sprinkled through the catalytic sprinkler 138 may be used to clean the polling filter 154. Therefore, the filter unit 150 of the present invention can be used without replacement for a certain period of time.

The present invention reduces the primary odor by using the multi-stage catalyst spraying device (131 to 135) in the inlet pipe (108), reduces the secondary odor through the filter unit (150) in the outlet pipe (110), and The odor is thirdly reduced through the device 138. In addition, odors are fourthly reduced through multi-stage mist spraying devices 136 and 137.

When the high-temperature odor gas input to the odor reduction device 1 of the present invention passes through the odor reduction device 1 in sequence, the odor is completely removed and discharged to the outside.

When the high-temperature odor gas input to the odor reduction device 1 of the present invention passes through the odor reduction device 1 in sequence, dry air from which not only the odor but also moisture is removed is discharged to the outside.

Meanwhile, the inside of the fermentor 20 is maintained at high temperature and high pressure. Accordingly, the high-temperature and high-pressure malodorous gas of the fermentor 20 generates a gas flow from the fermentor 20 toward the deodorization tank 100.

The cyclone output fans 35 and 43 installed in the dust removers 40 and 30 apply pressure to flow the gas from the dust removers 40 and 30 toward the deodorization tank 100.

The high-pressure gas generated from the cooling air generating unit 120 is input to the inlet pipe 108 to apply pressure in the forward direction to induce the flow of the odorous gas.

A separate input fan may be installed in the gas supply unit 104 of the inlet pipe 108 including the deodorization tank 100. The gas flow introduced through the inlet pipe 108 has a high speed. However, when it meets the low temperature air of the cooling air generator, the inlet gas condenses and the speed decreases.

Cyclone fan of the high-pressure fermenter 20 and dust remover 40 or 30 without installing a separate fan for gas flow in the inlet pipe 108 or the outlet pipe 110 including the deodorization tank 100 (or An outlet fan) and a fan of the gas supply unit 104 are also included in the present invention to aid in the flow of inflow of malodorous gas or control the speed.

Figure 2 is an enlarged cross-sectional view of the main part of Figure 1 of the odor gas odor reduction device according to the present invention.

In the gas supply unit 104, the odor gas supply pipe 90 is inserted deeply by a predetermined depth "D" from the inlet pipe inlet 107, which is the front end of the inlet pipe 108.

The gas supply unit 104 includes a suction fan 103, a odor gas supply pipe 90, and a sealing 85. When the cooling air at room temperature from the cooling air generator 120 enters the inlet pipe 108 in the normal direction, it is input into the space between the inner diameter of the inlet pipe 108 and the outer diameter of the odor gas supply pipe 90 to be It is input while forming a vortex, and the cooling air mixes with each other downstream without interfering with the inflow of the odor gas due to the insertion depth (D), and eventually cools the temperature of the odor gas.

3 is a cross-sectional view showing a first embodiment of a dust remover among the apparatus for reducing odor of odor gas according to the present invention.

The malodorous gas containing water of high temperature and high pressure from the fermentor 20 is input to the dust remover 40 through the input unit 41.

The vortex forming unit 42 is formed in the center of the axial direction to direct the input odor gas to the gas in a direction perpendicular to the axial direction to form a vortex. At this time, the heavy solid dust is primarily housed in the primary dust collection unit 44.

Solid dust having a relatively light weight passes through the axial fan 43 and is then collected in the secondary dust collection unit 45.

After all of the solid dust is collected in the dust collecting unit, only gas passes through the output unit 46 and is input to the gas supply unit 104 through the output pipe 38 (FIG. 1).

On the other hand, the solid dust stored in the primary collection unit 44 and the secondary collection unit 45 is discarded to the outside or re-inputted into the fermentor 20.

4 is a broken perspective view showing a second embodiment of a dust remover among the apparatus for reducing odor of odor gas according to the present invention.

The high-temperature and high-pressure odor gas fermented from the fermentor 20 is input to the inside of the cyclone exterior 31 through the cyclone input pipe 33 in the normal direction. The input gas moves downward along the space between the cyclone outer tube 31 and the cyclone inner tube 32 while rotating in a whirl or spiral shape along the inner tube of the cyclone outer tube 31.

At this time, the solid dust contained in the odor gas is all immersed downward and immersed in the dust collecting unit 34, and only the gas without dust moves to the inside of the cyclone inner tube 32 and is transferred upward.

An output fan 35 is installed in the cyclone inner tube 32 to suck high-temperature and high-pressure odor gas from the fermentor 20.

The output fan 35 may be installed on the cyclone input tube 33.

The present invention removes the odor gas generated in the fermenter 20 by using the axial flow type cyclone dust removal device 40 or the cyclone type dust remover 30 to remove the odor and moisture. It shows an example of the process of removing.

The dust collected in the dust collection units 34, 44 and 45 collected by the dust remover 40 or 30 of the present invention is put into the fermentor 20 to ferment again.

In addition to the above embodiments, various modifications of the present invention are possible.

1: odor reduction device
10: poultry farm (pig house)
20: fermenter
30: dust remover
31: Cyclone appearance
32: Cyclone interior
33: Cyclone input tube
34: Dust collection
35: output fan
38: output tube
40: dust remover
41: input
42: vortex forming part
43: axial fan
44: 1st partial number collection
45: 2nd fractional number collection
46: output
90: odor gas supply pipe
95: sealing
100: deodorization tank
101: odor gas receiving part
102: water receiving part
103: suction fan
104: gas supply unit
105: mist spraying part
106: filter mounting part
107: inlet pipe entrance
108: inlet pipe
109: Outflow pipe outlet
110: outlet pipe
120: cooling air generator
130: water circulation pump
131~135: Multi-stage catalyst spraying device
136~137: Fog spraying device
138: catalyst sprinkler
140: refrigeration device
142: refrigerant pipe
150: filter unit
152: thermistor filter
154: polling filter
160: Mr. removal unit
D: insertion depth

Claims (5)

In the odor reduction device of odor gas,
A deodorization tank containing water and having a mist removal unit;
An inlet pipe communicating with the deodorization tank and extending upward in a standing direction;
An outlet pipe communicating with the deodorizing water tank and extending upwardly in parallel with the inlet pipe;
A gas supply unit for supplying malodorous gas to the inlet pipe; And
And a water spray unit for spraying water in the deodorization tank to the malodorous gas passing through the inlet pipe,
Further comprising a cooling air supply unit for supplying cooling air to the malodorous gas passing through the inlet pipe,
Further comprising a dust remover for removing solid dust from the odor gas flowing into the inlet pipe,
The dust remover includes an input unit into which the odor gas is input, a vortex forming unit in which a vortex is formed in a direction perpendicular to a moving direction of the odor gas input through the input unit, and the vortex forming unit is separated from the odor gas. A primary dust collection unit that collects heavy solid dust, an axial fan that forms a vortex in the odor gas that has passed through the vortex forming unit, and the light solid dust separated from the odor gas by the vortex formed by the axial flow fan. An apparatus for reducing odor of odor gas, comprising: a secondary dust collecting unit for collecting odor and an output unit for supplying the odor gas passing through the axial fan to the gas supply unit.
The method of claim 1,
The device for reducing odor of odor gas, characterized in that the water spray unit sprays in multiple stages including a plurality of nozzles.
The method of claim 2,
An apparatus for reducing odor of odor gas, characterized in that a filter unit including at least one filter is mounted in the outlet pipe.
The method of claim 1,
And a mist spraying device for spraying mist by mixing the water and chemicals toward the air discharged to the outlet side.
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