KR101174252B1 - Food waste processing apparatus using liquid fermentation - Google Patents

Abstract

PURPOSE: A liquid fermenting and extinguishing type food waste treating apparatus is provided to use fermented food waste as fertilizer or feed and to increase the treating efficiency of the apparatus. CONSTITUTION: A liquid fermenting and extinguishing type food waste includes a liquid fermenting and extinguishing part and a leachate/sludge separating and treating part(1). The liquid fermenting and extinguishing part sprays water to food waste to be washed. The washed food waste is stirred to be fermented. Leachate/sludge mixed with the water is separated from the food waste. The leachate/sludge separating and treating part separates leachate/sludge into leachate and sludge to ferment the sludge based on microorganisms. The separated leachate is sterilized.

Description

FOOD WASTE PROCESSING APPARATUS USING LIQUID FERMENTATION

The present invention relates to a liquid enzyme enzyme digestion food processing apparatus, and more particularly, by separating food waste into a solid phase and a liquid phase, the solid food waste is subjected to liquid fermentation, and the liquid leachate or sludge of food waste is sterilized separately. In addition, the present invention relates to a liquid enzyme-extinguishing food processing apparatus capable of increasing processing efficiency.

Food waste has been properly treated by municipalities, such as landfilling and ocean dumping for one-sided cogeneration, or partly processed into feed and fertilizer, etc., but due to environmental pollution, prohibition of ocean dumping, incineration, landfill and diseases Soil pollution is prevented due to prohibition of feed processing due to occurrence. An apparatus for fermenting food waste collected under these regulations is shown in FIG. 6. Referring to FIG. 6, the conventional food waste fermentation apparatus includes a housing 50, a food waste inlet 501, a rotating shaft 562 installed in the housing and installed in the transverse direction, and a stirring blade 563. The stirrer 560 and the mesh filter plate 530 installed at the lower portion of the housing 50 were configured. However, the conventional food waste fermentation device is easily decayed due to the salt contained in the food, as well as leachate and harmful components, so that the hygiene is not good, the desired fermentation is not made. In order to solve this problem, after washing the food waste using the nozzle, the fermentation of the food waste as a solid is smoothly made, but the treatment of the wash water and leachate containing salt and harmful components is a problem. In other words, it is not easy to treat food leachate and crushed food sludge, and there is a problem in that it is inefficient in terms of cost and time because it needs to be collected and processed by a separate treatment company.

Therefore, the present invention is to solve the above problems, an object of the present invention is to separate the food waste into a solid phase and a liquid phase solid waste food waste fermentation treatment, liquid leachate to sludge food waste by sterilization separately To provide a liquid enzyme enzyme digestion food processing apparatus that can increase the treatment efficiency.

In addition, it is an object of the present invention can utilize the fermented food waste as a fertilizer or feed to promote efficient use of resources, and by discharging the leachate by sterilizing the liquid enzymatic extinction that can prevent soil or marine environmental pollution It is to provide a food processing device.

In addition, an object of the present invention is to filter the sludge with a mesh filter provided in the leachate sterilization unit, and sterilization by the ozone of the ultraviolet ray and ozone generator by the UV lamp to provide a sterilization efficiency excellent liquid enzyme enzyme food treatment apparatus It is.

In order to achieve the above object and the liquid food enzyme enzymatic food treatment apparatus according to the present invention by spraying water to food waste, the washed food waste fermented while stirring, the washed water mixed leachate / sludge Liquid enzymatic killing to separate the food waste; And a leachate / sludge discharged from the liquid enzyme decay part and separated into leachate and sludge, and the separated sludge is fermented by the microorganism, and the separated leachate is a leachate / sludge separation treatment unit for sterilization. It is done.

In addition, the liquid enzyme enzymatic killing portion of the liquid enzyme enzyme extinguishing food processing apparatus according to the present invention and the housing is provided with a food waste inlet for the food waste is introduced; Water supply means installed in the housing and spraying water onto food waste; A mesh filter plate disposed transversely to an inner space of the housing; A drain formed at a lower portion of the mesh filter plate; And stirring blades for stirring the food waste in the longitudinal direction.

In addition, the leachate / sludge separation treatment part of the liquid enzyme enzyme digestion food waste treatment apparatus according to the present invention is provided with a leachate / sludge inlet in the upper portion so that the leachate / sludge is supplied from the liquid enzyme enzyme digestion unit is mixed with the introduced sludge medium A housing in which a sludge fermentation part in which fermentation is formed is formed, and a leachate sterilization part having a leachate outlet is formed at a lower portion thereof; A mesh filter plate disposed transversely to the inner space of the housing and partitioned into the sludge fermentation unit and the leachate sterilization unit, and separated into the sludge and the leachate; A stirring blade installed in the sludge fermentation unit for stirring the sludge; And sterilization means installed on the leachate sterilization unit to sterilize the leachate.

In addition, the sterilization means of the liquid enzyme enzyme digestion food processing apparatus according to the invention is characterized in that the ultraviolet lamp or ozone generator.

In addition, the leachate sterilization part of the liquid enzyme enzyme digestion food waste treatment apparatus according to the present invention is provided with a leachate discharge pipe connected to the leachate outlet, the leachate discharge pipe is composed of a horizontal pipe portion, a vertical pipe portion bent downward from the horizontal pipe portion. The vertical pipe portion is characterized in that the mesh filter is mounted.

As described above, the liquid fermentation enzyme food treatment apparatus of the present invention separates food waste into a solid phase and a liquid phase, and solid waste food waste fermentation treatment, and liquid leachate to sludge food waste is treated separately. There is an effect that can increase the efficiency.

In addition, the liquid enzyme enzyme extinction food processing apparatus of the present invention can utilize the fermented food waste as a fertilizer or feed to promote efficient use of resources, and by sterilizing the leachate discharged to prevent soil or marine environmental pollution It can work.

In addition, the liquid enzymatic extinction food treatment device of the present invention filter out sludge with a mesh filter provided in the leachate sterilization unit, sterilization with ultraviolet rays and ozone generator ozone by the UV lamp has an excellent sterilization efficiency. .

1 and 2 are views showing one embodiment of the liquid enzyme enzyme digestion food processing apparatus according to the present invention, respectively.
Figure 3 is a cross-sectional view showing an embodiment of the leachate / sludge separation treatment unit according to the present invention.
4 is a perspective view showing a mesh filter plate of the present invention.
5 is a conceptual diagram showing a path of the leaching water in the leachate sterilization unit of the present invention.
Figure 6 is a view showing a conventional liquid enzyme enzyme digestion food processing apparatus.

Hereinafter, with reference to the drawings will be described in detail the liquid enzyme enzyme digestion food processing apparatus according to the present invention. However, in the above description of the present invention, the same or similar components are given the same or similar reference numerals, and detailed descriptions of overlapping contents will be omitted.

1 and 2 are views showing one embodiment of the liquid enzyme enzyme digestion food processing apparatus according to the present invention, respectively.

As shown in Figure 1 and 2, the liquid enzyme enzyme digestion food processing apparatus according to the present invention includes a liquid enzyme enzyme digestion unit 2 and the leachate / sludge separation treatment unit (1).

Liquid enzymatic killing unit 2 according to the present invention is sprayed and washed with food waste introduced into the housing 20 through the food waste inlet 201, the washed food waste is fermented while stirring, the washing A water separates the mixed leachate / sludge and the food waste.

The liquid enzymatic killing unit 2 includes a housing 20, a water supply unit 210, a mesh filter plate 230, a drainage unit 250, and a stirring blade 263.

The housing 20 may exemplify a cylindrical shape lying in the transverse direction. Food waste in the housing 20 is fermented in a state in which microorganisms such as chaff and the like. In addition, the housing 20 may further include a temperature sensor 271, a heater 270, etc. to adjust the appropriate fermentation temperature.

In addition, the agitator 260 installed in the housing 20 includes a motor 261, a rotation shaft 262 installed in the transverse direction inside the housing 20, and a plurality of stirring wings fixed to the rotation shaft 262. 263.

The plurality of stirring blades 263 may illustrate a rod shape in which the distal end 264 of the rotation shaft 262 is formed to be wide. And each of the stirring blades 263 to be staggered with the neighboring stirring blades 263, for example, the neighboring stirring blades are configured to form an angle of 180 degrees with respect to the rotation axis. By forming the stirring blades alternately with each other in this way, a large amount of food waste can be efficiently stirred because no load is applied.

The water supply means 210 serves to wash the salt and various foreign matter by spraying water to food waste in the housing 20.

The water supply means 210 may include a water supply pipe 212 connected to an external water tank 211 and a plurality of water supply nozzles 213 connected to the water supply pipe 212.

The mesh filter plate 230 serves to permeate food leachate mixed with water from which food waste is washed and food sludge smaller than micropores.

The drainage 250 serves to store and discharge the leachate and sludge passing through the mesh filter plate 230 to the outside.

The drainage part 250 communicates with a storage part 251 positioned at the lower end of the housing 20 so as to store leachate and sludge, and one end thereof communicates with an outer wall surface of the storage part 251, and the other end of the leachate / sludge treatment part. A connecting pipe 253 connected to (1) and a pump 255 connected to one side of the connecting pipe 253 to transfer the leachate / sludge in the storage unit 251 to the leachate / sludge separation treatment unit 1. It includes.

Therefore, liquid waste enzyme enzymatic food processing apparatus according to the present invention is the liquid waste fermentation in the liquid enzyme enzyme killing part (2), most of the solid food waste, water and leachate and sludge washed food waste in the liquid enzyme enzyme killing The leachate / sludge separation treatment unit 1 is treated.

Hereinafter, the leachate / sludge separation treatment unit according to the present invention will be described in detail.

Figure 3 is a cross-sectional view showing an embodiment of the leachate / sludge separation treatment unit according to the present invention, Figure 4 is a perspective view showing a mesh filter plate of the present invention, Figure 5 is a leachate in the leachate sterilization of the present invention It is a conceptual diagram which shows the path | route to move.

As shown in Figure 3 to 6, the leachate / sludge separation treatment unit according to the present invention is largely divided into the sludge fermentation unit 100 and the leachate sterilization unit 130, and the sludge and leachate to separate It comprises a mesh filter plate 170, the stirring blade 122 and the sterilization means (140, 145).

Specifically, the leachate / sludge separation treatment unit according to the present invention is provided with a leachate / sludge inlet 115 is formed in the sludge fermentation unit 100 is a fermentation by the microorganism is formed in a state in which the introduced sludge mixed with the medium is formed The lower part of the housing 10 is formed with a leachate sterilization unit 130 having a leachate outlet 167, and disposed in the transverse direction in the inner space of the housing 10, the sludge fermentation unit 100 and leachate sterilization The mesh filter plate 170 is partitioned into the unit 130 and separated into the sludge and the leachate, and the stirring blade 122 is installed in the sludge fermentation unit 100 to stir the sludge and the leachate sterilization unit 130. It is installed in the sterilization means 140, 145 to sterilize the leachate.

The housing 10 may be illustrated as having a cylindrical shape divided up and down based on the mesh filter plate 170.

The upper part of the mesh filter plate 170 in the housing 10 is a sludge fermentation part 100 through which the sludge is fermented, and the lower part of the mesh filter plate 170 is a leachate sterilization part 130 in which leachate is sterilized by sterilization means. .

In the sludge fermentation unit 100, fermentation by microorganisms is performed while stirring the sludge separated from the leachate.

The medium is mixed with the sludge for fermentation by the microorganism. There is no particular limitation on the kind of the microorganism and the medium for the fermentation, and a known microorganism and a medium can be used.

However, the medium not only serves as a secondary blade so that the crushing of the sludge is efficiently made when the stirring blade 122 is stirred, using a chaff that can provide a sufficient space for microorganisms to inhabit It is preferable.

At the upper end of the sludge fermentation part 100, an air outlet 113 is formed to discharge the leachate / sludge inlet 115 and the internal air introduced into the housing 10 by mixing leachate and sludge. And the stirrer 120 is installed to agitate the sludge in the sludge fermentation 100.

The stirrer 120 includes a motor 124, a rotation shaft 121 installed in the longitudinal direction inside the housing 10, and a power transmission belt 123 connecting the motor 124 and the rotation shaft 121. And at least one stirring blade 122 formed on the rotating shaft 121.

Here, the rotating shaft 121 may be installed through the upper end and the lower end of the housing 10, but the stirring blade 122 is formed only in the sludge fermentation part 100.

In addition, a cleaning brush 125 may be further installed below the stirring blade 122 to prevent the mesh filter plate 170 from being blocked.

In addition, the sludge fermentation unit 100 may be provided with an air supply unit 110 to dry the sludge.

The air supply unit 110 is composed of a tube 101 in communication with the sludge fermentation unit 100 and a heater 111 connected to the tube 101 to heat the air.

In addition, the sludge fermentation unit 100 inside the over-capacity sensor 119 is mounted to serve as a warning to the situation when the sludge reaches the height of the over-capacity sensor is mounted. And when the excess capacity sensor 119 is operated can be configured to control the supply of leachate and sludge.

The sludge discharge door 117 is formed below the sludge fermentation part 100. The sludge discharge door 117 through the sludge fermentation unit 100 may discharge the sludge dried or fermentation is completed, it may be configured as a tempered glass to visually check the internal state.

The mesh filter plate 170 according to the present invention divides the housing 10 into the sludge fermentation unit 100 and the leachate sterilization unit 130 to separate the sludge and the leachate.

The mesh filter plate 170 is formed with a plurality of micro holes 171 to selectively transmit the leachate, the sludge larger than the diameter of the micro holes are not transmitted. Here, the number or diameter of the micropores may be determined in consideration of the type and size of the food sludge.

Here, although the mesh filter plate is illustrated that the minute hole is formed in one plate, it is not necessarily limited thereto, and may be configured in a form in which a plurality of mesh filter plates are combined.

Leachate sterilization unit 130 according to the present invention provides a space for storing and sterilizing the leachate passing through the mesh filter plate 170.

Like the sludge fermentation unit 100, the leachate sterilization unit 130, the over-capacity detection sensor 131 is mounted inside the leachate to the height of the over-capacity detection sensor is mounted to warn this situation. do. And when the excess capacity sensor is activated can be configured to block the supply of leachate and sludge flowing into the housing.

And the sludge discharge door 117 is formed on one side of the lower side of the leachate sterilization unit 130. The sludge discharged through the sludge discharge door 117 may discharge the sludge settled in the leachate sterilization unit 130, it may be configured as a tempered glass to visually check the internal state.

Sterilization means 140, 145 according to the present invention may be composed of an ultraviolet lamp 145 and / or ozone generator 140 is installed in the leachate sterilization unit 130.

The ultraviolet lamp 145 may be installed in the central region of the leachate sterilization unit 130. Sterilization or sterilization of ultraviolet rays is already known, so detailed description thereof will be omitted. Since the ultraviolet lamp is installed at the center of the leachate sterilization part is filled with leachate is preferably configured to be waterproof. Of course, a plurality of ultraviolet lamps may be installed.

Ozone generated by the ozone generator 140 has a sterilizing power of about 6 times that of chlorine, and general bacteria and viruses are sterilized in seconds, and various odor causing substances or harmful heavy metals can be oxidized and decomposed within minutes.

For example, the ozone generator 140 may include an ozone generator 141 and an ozone supplier 142. The ozone generator 141 artificially decomposes oxygen molecules in the air with strong ultraviolet light, such as a low pressure mercury lamp, and is installed outside the housing 10. And the ozone supply unit 142 is installed in the housing 10, specifically, the leachate sterilization unit 130 is configured to contact the leachate and ozone. Since the ozone generator corresponds to a known matter, a detailed description thereof will be omitted. And ozone generator can be used without particular limitation as long as it can provide ozone to leachate.

The leachate sterilization unit 130 may be further provided with a bubble generating device 135 for generating bubbles. For example, the bubble generator 135 may include a bubble generator 136 and a bubble supply unit 137. That is, the bubble generator 136 is installed outside the housing 10, the bubble supply unit 137 is installed in the leachate sterilization unit 130.

And the bubble supply unit 137 is installed directly under the mesh filter 165, it can automatically wash the mesh filter. Since the mesh filter 165 is formed with micropores so that sludge in the leachate sterilization unit 130 is not discharged to the outside, micropores are blocked by sludge over time, and thus the filtration efficiency is reduced. Accordingly, the bubble generator 135 may continuously spray bubbles under the mesh filter 165 to prevent the micropores from being blocked.

In the leachate sterilization unit 130, a leachate discharge pipe 160 connected to the leachate outlet 167 may be installed.

The leachate discharge pipe 160 may include a horizontal pipe part 161 and a vertical pipe part 163 bent downward from the horizontal pipe part 161.

The horizontal pipe part 161 is horizontally connected to the leachate outlet 167. The vertical pipe portion 163 extends downward from the horizontal pipe portion 161 in the vertical direction.

In addition, a mesh filter 165 may be mounted on the vertical pipe part 163 of the leachate discharge pipe 160 to prevent sludge from passing therethrough.

The leachate flowing into the leachate sterilization unit 130 through the mesh filter plate 170 is sterilized or sterilized by the ozone generator 140 or the ultraviolet lamp 145, and then, the mesh filter 165 and the vertical pipe portion. 163 and the horizontal pipe portion 161 are sequentially discharged to the outside.

As such, since the vertical pipe portion 163 of the leachate discharge pipe 160 extends directly downward from the horizontal pipe portion 161, the level of the leachate can be kept constant.

And since the mesh filter 165 is mounted at the end of the vertical pipe portion 163, it is possible to filter the sludge that is not filtered from the mesh filter plate 170. The vertical pipe part 163 and the mesh filter 165 may be provided in plural, and the bubble supply unit 137 and the ozone supply unit 142 may be configured to be positioned below the mesh filter 165.

Meanwhile, the leachate may be configured to circulate from the leachate sterilization unit 130 to the sludge fermentation unit 100. Therefore, the housing 10 may be further provided with a circulation pipe 150 in communication with the lower side of the leachate sterilization unit 130 and one side of the sludge fermentation unit 100.

As such, the sludge remaining in the leachate sterilization unit 130 is periodically transferred to the sludge fermentation unit 100 through the circulation tube, so that the sludge is very small in the leachate sterilization unit 130, so that the mesh filter 165 It can prevent clogging.

And one side of the circulation pipe 150 may be provided with a valve 151, for example a solenoid valve that can be automatically opened and closed in accordance with the electrical signal. And the circulation pipe 150 is equipped with a pump 153 to circulate the leachate.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Therefore, it is to be understood that the present invention is not limited to the above-described embodiments. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims. It is also to be understood that the invention includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

1: Leachate / sludge separation treatment unit
10 housing 100 sludge fermentation
101: pipe 110: air supply
111: heater 113: air outlet
115: leachate / sludge inlet 117: sludge discharge door
119: excess capacity sensor 120: agitator
121: rotating shaft 122: stirring blade
123: belt 124: motor
125 brush 130 leachate sterilization unit
131: over-capacity detection sensor 135: bubble generator
136: bubble generation unit 137: bubble supply unit
140: ozone generator 141: ozone generator
142: ozone supply unit 145: ultraviolet lamp
150: circulation pipe 151: valve
153 pump 160 leachate discharge pipe
161: horizontal pipe portion 163: vertical pipe portion
165: mesh filter 167: leachate outlet
170: mesh filter plate 171: fine holes
2: liquid foot enzyme killing part
20: housing 201: food waste inlet
210: water supply means 211: water tank
212: water supply pipe 213: water supply nozzle
230: mesh filter plate 250: drain
251 storage unit 253 connector
255 pump 260 agitator
261: motor 262: rotating shaft
263: stirring blade 264: stirring blade distal end
270: heater 271: temperature sensor

Claims (5)

Spraying water on food waste, washing the fermented food waste with stirring, and separating the leachate / sludge and the food waste mixed with the washed water; And
Including the leachate / sludge discharged from the liquid enzymatic killing part is separated into leachate and sludge, the separated sludge is fermentation microorganisms, the separated leachate is a leachate / sludge separation treatment for sterilization; including,
The leachate / sludge separation treatment unit,
The leachate / sludge inlet is provided at the upper part to receive the leachate / sludge, and a sludge fermentation part is formed in which fermentation is carried out in a state in which the introduced sludge is mixed with the medium, and a leachate sterilized with a leachate outlet is provided at the bottom. A housing in which an additional portion is formed,
The leachate sterilization unit is provided with a leachate discharge pipe connected to the leachate outlet, the leachate discharge pipe is composed of a horizontal pipe portion, a vertical pipe portion bent downward from the horizontal pipe portion, the vertical pipe portion is equipped with a mesh filter,
A bubble generator is installed in the lower portion of the mesh filter is liquid enzyme enzyme digestion food processing device, characterized in that the mesh filter is automatically washed. The method of claim 1,
The liquid foot enzyme killing unit,
A housing having a food waste inlet through which the food waste flows;
Water supply means installed in the housing and spraying water onto food waste;
A mesh filter plate disposed transversely to an inner space of the housing;
A drain formed at a lower portion of the mesh filter plate; And
Agitation blade for stirring the food waste in the longitudinal direction;
Liquid enzyme enzyme extinction food processing apparatus comprising a. The method of claim 1,
The leachate / sludge separation treatment unit,
A mesh filter plate disposed transversely to the inner space of the housing and partitioned into the sludge fermentation unit and the leachate sterilization unit, and separated into the sludge and the leachate;
A stirring blade installed in the sludge fermentation unit for stirring the sludge; And
Sterilization means installed on the leachate sterilization unit to sterilize the leachate;
Liquid enzymatic extinguishing food treatment apparatus further comprising a. The method of claim 3,
The sterilization means is a liquid enzyme enzyme digestion food processing device, characterized in that the ultraviolet lamp or ozone generator. delete

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