KR100640181B1 - A waste processing system - Google Patents

Abstract

The present invention effectively treats food waste generated in homes and restaurants, as well as by-products and condensed water generated in this process, and by reducing the household waste by reducing the by-products used in high-quality feed or compost and In addition, it aims to provide a food waste disposal system that can be used to produce high-quality agricultural products, and the condensate can be used as a self-functional deodorant and used as a liquid fertilizer, a deodorant, or a nitrogen or phosphorus remover as sewage precipitant. ,

In order to achieve the above object, the present invention provides two first and second dehydration means connected in series, and the first dehydration means removes water primarily from moisture contained in food waste. Dehydration means is dewatering means for dewatering the water contained in the food waste to the second in the water removed from the first dewatering means again; Transfer means installed between the first dewatering means and the second dewatering means to convey the food waste so that the food waste discharged from the first dewatering means flows into the second dewatering means; Food waste from which a certain amount of water is removed from the second dewatering means of the dewatering means is connected to the second dewatering means so as to be accommodated, and agitates the food waste, and condensate and leachate generated from the food waste Stirring means having a discharge port; Heat source supply means for supplying a heat source to the stirring means for fermenting the food waste contained in the stirring means; A condensing means connected to the stirring means and a pipe, and forcibly discharging water vapor generated in the process of fermenting the food waste in the stirring means by using a pump to condense the condensed water to form; Bypass piping for forcibly discharging the condensed water produced by the condensation means by a pump to bypass the stirring means; A bypass pipe connecting the condensation means and the stirring means to discharge the remaining water vapor condensed in the condensation means; A pump installed on the double pass pipe; Microbial injection means for injecting microorganisms in the stirring means through the bypass pipe corresponding to the rear end side of the pump so that food waste in the stirring means is fermented; It is connected to the stirring means is characterized in that it comprises a sorting means for sorting foreign matter in the dry food waste generated and discharged from the stirring means.

Dewatering, stirring, condensation, microorganisms, leachate, sorting

Description

Food waste processing system {A waste processing system}

1 is a block diagram of a processing system of the present invention.

2 is a block diagram of the dehydration means of the present invention.

3 is a block diagram of the stirring means of the present invention.

4 is a block diagram of a condensation means of the present invention.

5 is a view showing a heat source supply position of the present invention.

<Description of the symbols for the main parts of the drawings>

100: dewatering means

110: first dewatering means

120: second dewatering means

200: stirring means

210: outlet

300: heat source supply means

400: condensation means

410: piping

420: Pump

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510: Pump

550: air injection means

600: microorganism injection means

700: sorting means

The present invention relates to a food waste treatment system, and more particularly, to effectively handle food waste generated in a home or a restaurant, as well as to recycle by-products and condensate generated in this process, the by-products of high quality feed or compost It can be used as a functional deodorant and as a liquid fertilizer, deodorant, sewage precipitant, nitrogen or phosphorus remover as well as reducing farm household expenses and recycling to produce high quality agricultural products. It is about a food waste disposal system.

Food waste has a water content of more than 90%, causing serious secondary environmental pollution such as soil and groundwater due to the generation of odors and leachate from corruption caused by collection, transportation, disposal or landfill. The reality is that the issue of landfill selection and disposal stabilization is a concern.

Now that landfill prohibitions have been established since 2005, we face the point where resources for agricultural and marine products, including food waste, must be either recycled or disposed of without pollution in any way.

However, some or a large amount of food waste is currently disposed of in a conventional manner.

For example, the landfill and incineration methods are adopted. However, since the food waste has a lot of water during the incineration, a large amount of fuel is consumed to incinerate the waste, thereby causing a large waste of disposal costs.

Incomplete combustion causes incineration of the environment such as dioxin and harmful air pollutants.

On the other hand, during the reclamation, there was a closure of the landfill due to decay and leachate.

Therefore, there is a need to drastically improve such treatment methods.

In recent years, due to the active development of leisure culture, the fact that the loading of food waste, which increases exponentially, becomes a reality, and there is no special countermeasure.

Thus, after various researches and experiments, there are cases where food waste is recycled in mushroom cultivation and is now a successful method.

The present invention was devised to solve the above situation, and effectively treats food waste generated in homes or restaurants, and also by-products and condensed water generated in this process, the by-products of high quality feed or By reducing the consumption of compost and recycling farms to produce high quality agricultural products, the condensate is used as a functional deodorant and as a liquid fertilizer, deodorant, sewage precipitant, nitrogen or phosphorus remover. It is an object to provide a food waste disposal system that can be used.

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In order to achieve the above object, the present invention provides two first and second dehydration means connected in series, and the first dehydration means removes water primarily from moisture contained in food waste. Dehydration means is dewatering means for dewatering the water contained in the food waste to the second in the water removed from the first dewatering means again; Transfer means installed between the first dewatering means and the second dewatering means to convey the food waste so that the food waste discharged from the first dewatering means flows into the second dewatering means; Food waste from which a certain amount of water is removed from the second dewatering means of the dewatering means is connected to the second dewatering means so as to be accommodated, and agitates the food waste, and condensate and leachate generated from the food waste Stirring means having a discharge port; Heat source supply means for supplying a heat source to the stirring means for fermenting the food waste contained in the stirring means; A condensing means connected to the stirring means and a pipe, and forcibly discharging water vapor generated in the process of fermenting the food waste in the stirring means by using a pump to condense the condensed water to form; Bypass piping for forcibly discharging the condensed water produced by the condensation means by a pump to bypass the stirring means; A bypass pipe connecting the condensation means and the stirring means to discharge the remaining water vapor condensed in the condensation means; A pump installed on the double pass pipe; Microbial injection means for injecting microorganisms in the stirring means through the bypass pipe corresponding to the rear end side of the pump so that food waste in the stirring means is fermented; It is connected to the stirring means is characterized in that it comprises a sorting means for sorting foreign matter in the dry food waste generated and discharged from the stirring means.
Hereinafter, with reference to the accompanying drawings, preferred embodiments of the food waste treatment system according to the present invention will be described in detail.

1 is a configuration diagram of the treatment system of the present invention, Figure 2 is a configuration diagram of the dehydration means of the present invention, Figure 3 is a configuration diagram of the stirring means of the present invention, Figure 4 is a configuration diagram of the condensation means of the present invention 5 is a view showing a heat source supply position of the present invention.

Food waste treatment system according to the present invention is largely dewatering means 100, stirring means 200, condensation means 400, bypass pipe 500, microbial injection means 600, sorting means It comprises 700.

The dewatering means 100 serves to dehydrate moisture contained in food waste.

The dehydration means 100 has two first and second dehydration means 110 and 120 are connected in series, the first dehydration means 110 removes 50% of the water contained in food waste The second dewatering means 120 removes 20% of the water removed from the first dewatering means 110, and the food waste discharged from the first dewatering means 110 is disposed in the second dewatering means 120. Transfer means 130 is installed between the first dewatering means 110 and the second dewatering means 120 to transport the food waste to be introduced into.

The dehydration means 100 composed of the first and second dehydration means 110 and 120 includes an inlet 111 and 121 for injecting food waste and an outlet 112 and 122 for discharging food waste. Dehydration body (114) (124) having a water outlet (113, 114) on the lower side, and is installed rotatably inside the dehydration body (114, 124) in the inlet (111, 121) Transfer screws 115 and 125 for discharging moisture through the water outlets 113 and 114 while transporting the injected food, and are installed outside the dehydrating bodies 114 and 124 and the transfer screw 115. It consists of drive motors (116, 126) for rotating (125).

Here, the principle that the water is dehydrated from the food waste by the rotation of the transfer screw 115, 125, transfer screw 115 in the process of the food waste is transported by the rotating screw (115) (125) ( Food waste between the wings 115a and 125a of the 125 is agglomerated and water contained therein is discharged through the water outlets 113 and 114.

Conveyor belt is used as the transfer means 130.

The first end of the conveyor belt is located at the lower end of the outlet 112 of the first dewatering means 110, the other end is located above the inlet 121 of the second dewatering means 120, the first The food waste discharged from the outlet 112 of the dewatering means 110 is loaded and transported to be introduced into the inlet 121 of the second dewatering means 120.

The stirring means 200 is connected to the second dewatering means 120 of the dewatering means 100 so that the food waste from which a predetermined amount of water is removed from the dewatering means 100 is accommodated therein, and the food Stirring the waste, and has a discharge port 210 for discharging condensate and leachate generated from the food waste.

The stirring means 200 is a stirring body 210 having an inlet 201 through which food waste is input, a discharge port 202 through which food waste is discharged, and a water outlet 203 through which condensate and leachate are discharged from the lower side. And a stirrer 220 rotatably installed in the stirring body 210 and provided with a stirring blade 221 formed on an outer surface of the stirring shaft 222 and an outer circumferential surface of the stirring body 210. It is composed of a motor 230 for rotating the stirring shaft 222.

The stirring blade 221 serves to transport the food waste to the outlet 202 while stirring the food waste as the stirring shaft 222 is rotated.

The heat source supply means 300 serves to supply a heat source to the stirring means 200 in order to ferment the food waste being accommodated in the stirring means 200.

The heat source supply means 300 uses an electric heater.

The heat source supply means 300, the heat of Figure 5 is transmitted to the remaining area except the center portion of the bottom surface of the stirring means 200, is installed so as to be transmitted to both sides as the center of the bottom surface.

The condensation means 400 is connected and installed through the stirring means 200 and the pipe 410, forcing the steam generated in the process of the food waste in the stirring means 200 by using the pump 420 It discharges to serve to condense to form the condensate.

The condensation means 400 may use a condenser typically used in the air conditioning field.

As a detailed configuration of the condensation means 400, a condenser body 420 having a water vapor inlet 401 connected to the pipe 410 and the water vapor is introduced, and a condensate outlet 402 for discharging the condensate at the lower end; And a heat sink 430 installed inside the condenser main body 420, and a coolant pipe 440 installed through the heat sink 430 to allow the coolant to flow in and out from the outside of the condenser main body 420. have.

That is, since the water vapor flows into the condenser main body 420, the surroundings of the heat sink 430 are heat-exchanged by the cooling water passing through the cooling water pipe 440 to form low temperature and high humidity air.

At this time, condensed water is generated by heat exchange of the steam, and the condensed water 420 is discharged through the condensed water outlet 402 formed under the condenser body 420.

Meanwhile, the bypass pipe 500 serves to bypass the condensed water generated by the condensation means 400 by forcibly discharging the condensed water by using the pump 510.

The microorganism injection means 600 serves to inject microorganisms into the stirring means 200 so that the food waste in the stirring means 200 becomes fermented.

The microorganism injection means 600, connecting the bypass pipe 530 to the condensation means 400 and the stirring means 200, install a pump 540 on the bypass pipe 530, Injects microorganisms into the bypass pipe 530 corresponding to the rear end side of the pump 540.

On the other hand, in the above configuration, the air injecting means 550 is connected to the bypass pipe 530 corresponding to the rear end side of the pump 540 to inject atmospheric air.

The sorting means 700 is installed in connection with the stirring means 200 serves to sort the foreign matter in the dry food waste generated and discharged from the stirring means 200.

Here, the sorting means 700 may use a conventional one used in industry.

Referring to the operation of the present invention configured as described above are as follows.

First, as shown in FIG. 2, when food waste is put into the inlet 111 of the first dewatering means 110 constituting the dewatering means 100, and then power is supplied to the driving motor 116. The transfer screw 115 rotates to transport food waste and dehydrates approximately 50% of the water contained therein.

Here, the primary dehydrated water is discharged to the outside through the water discharge port 113 formed in the dehydrating body (114).

Thereafter, the food waste from which the predetermined amount of water is firstly removed from the first dewatering means 110 is discharged through the outlet 112 of the dehydrating body 114 by the transfer screw 115.

The food waste discharged through the outlet 112 is dropped and placed on the transfer means 130, the transfer means 130 transfers the food waste to the dehydration body 124 constituting the second dewatering means 120 Into the inlet 121 of the).

The food waste introduced into the dehydrating body 124 is advanced by the transfer screw 125 rotated by the driving motor 126 to dehydrate 20% of the water contained therein.

Here, the secondary dehydrated water is discharged to the outside through the water outlet 123 formed in the dehydrating body 124.

Thereafter, the food waste from which the water is secondarily removed from the second dewatering means 120 is discharged through the outlet 122 of the dehydrating body 124 by the transfer screw 125.

The food waste discharged through the outlet 122 is dropped into the inlet 201 of the stirring body 210 constituting the stirring means 200 to be in the stirring means 210.

That is, as shown in Figure 3, when food waste is put into the stirring body 210 constituting the stirring means 200, the heat source supply means 300 is operated to supply the heat source into the stirring body 210. do.

That is, the heat is supplied to the remaining portion except for the bottom portion of the stirring body 210 is heated.

When the food waste is put into the stirring body 210, the motor 230 is driven, and the stirring shaft 222 is rotated due to the driving of the motor 230, and the stirring shaft 222 is rotated. Due to the food waste existing between the stirring blades 221 is moved forward while stirring, it is discharged through the outlet 202.

On the other hand, the food waste being stirred inside the stirring body 210 constituting the stirring means 200 is fermented by the heat source supply means 300, the water vapor is generated in the fermentation process of the food waste.

The water vapor is forcibly sucked by the pump 420 through the pipe 410 formed on one side of the stirring body 210, as shown in Figure 4, of the condenser body 420 constituting the condensation means 400 Flows inside.

The water vapor introduced into the condenser main body 420 passes through the heat sink 430 and heat-exchanges with the cooling water passing through the cooling water pipe 440 to be converted into condensed water to form a condensate outlet 402 formed under the condenser main body 420. Is discharged through).

Here, the steam does not completely change into condensed water, but also changes to air in a low temperature and high humidity state.

As shown in FIG. 1, the condensate discharged through the condensate outlet 402 is agitated by the pump 510 along the bypass pipe 500 connected through the pump 510. It is returned to the stirring main body 210 that constitutes.

In addition, the low-temperature and high-humidity air means condensed water remaining in the condensation means, and the water vapor is discharged through the air outlet 403 formed in the condenser main body 420, and then installed through the pump 540. The pump 540 is returned to the stirring main body 210 along the bypass pipe 530.

The microorganisms injected from the microorganism injection means 600 are also returned to the stirring main body 210 by the bypass pipe 530.

In addition, the bypass pipe 530 also returns the air necessary for aerobic fermentation injected from the air injection means 550 from the outside into the stirring body 210.

As described above, the condensed water, the microorganism, and low temperature and high humidity air are injected into the stirring body 210 to promote the fermentation process of food waste.

Here, the inside of the stirring body 210 is a leachate generated by the growth of microorganisms are produced, the leachate is a precipitate in which the microorganisms ingest and excrete the required amount of nutrients, the precipitate is in the leachate state with condensate The change is discharged through the water outlet 203 formed on the lower side of the stirring body 210.

Condensate and leachate discharged through the water outlet 203 is stored in a separate tank can be used as a raw material used as a deodorant and liquid fertilizer, sewage treatment.

That is, when the apparatus of the present invention is associated with the sewage end treatment plant, when the condensate and the leachate is added to the treatment plant, there is an advantage that only about half of the existing chemicals for advanced treatment may be used.

When the above process, the dried food waste by-products are discharged to the outlet 202 of the stirring body 210 constituting the stirring means 200, and then placed in the sorting means 700.

The food waste placed on the sorting means 700 is sorted by foreign matter by the sorting means 700.

As a result, the food waste by-products selected by the sorting means 700 can be used as an activator for active microorganisms in the tank because they have high-quality nutrients, and can be used as raw materials for feed or compost.

In addition, since the present invention uses the microorganisms of the food waste and goes through a fermentation process, it is possible to fundamentally remove the odor generated from the food waste and to sanitarily manage the surrounding environment.

In addition, since food waste by-products produced by the present invention are almost completely removed from moisture, the food waste by-products have a low concentration of less than 1% of salinity and can be recycled to reduce economic costs.

In addition, the present invention is to pass the fermentation section of the food waste, it is possible to produce the product of the present invention at a low cost by using an electric heater without using a heat source as an existing boiler.

That is, the electric heater can significantly reduce the production cost by utilizing the electricity of the late night.

And, the heat source supply means 300 of the present invention, the heat is transferred to the remaining area except the center portion of the bottom surface of the stirring means 200, it is installed to be transmitted to both sides by the center of the bottom surface, food waste It is possible to prevent the pressing or severe burning during the stirring.

Therefore, the temperature at which the microorganisms are activated may be maintained at about 65 ° C. to 70 ° C. so that the microorganisms are not sterilized and the low temperature and high temperature microorganisms proliferate together well so that the fermentation may occur smoothly.

As described above, according to the present invention, to effectively treat the food waste generated in the home or restaurant, as well as the by-products and condensed water generated in the treatment process, the by-products to be used to reduce the high-quality feed or compost By reducing the farm expenses and recycling to produce high quality agricultural products, the condensate can be used as a self-functional deodorant as well as nitrogen or phosphorus remover (liquid fertilizer), deodorant, sewage precipitant.

Claims (7)

Two first and second dehydration means 110 and 120 are connected in series so that the first dehydration means 110 removes water primarily from moisture contained in food waste, and the second dewatering means. Dehydration means (100) is made to dehydrate the water in the second from the water removed from the first dewatering means 110, dehydration means 100 for dehydrating the water contained in the food waste; Between the first dewatering means 110 and the second dewatering means 120 to transport the food waste so that the food waste discharged from the first dewatering means 110 flows into the second dewatering means 120. A transfer means installed; The food waste from which a certain amount of water is removed from the second dewatering means 120 of the dewatering means 100 is connected to the second dewatering means 120 to be accommodated therein, and agitates the food waste. Stirring means (200) having an outlet (210) for discharging condensate and leachate generated from food waste; Heat source supply means (300) for supplying a heat source to the stirring means (200) to ferment the food waste contained in the stirring means (200); The condensed water is formed by connecting the stirring means 200 and the pipe 410 through the pump 420 by forcibly discharging the water vapor generated during the fermentation of food waste in the stirring means 200 using a pump 420. Condensing means (400) for condensing to be possible; Bypass pipe 500 for forcibly discharging the condensed water generated by the condensation means 400 by using a pump 510 to bypass into the stirring means 200; A bypass pipe (530) connecting the condensation means (400) and the stirring means (200) to discharge the remaining water vapor condensed in the condensation means (400); A pump 540 installed on the double pass pipe 530; Microbial injecting means for injecting microorganisms in the stirring means 200 through the bypass pipe 530 corresponding to the rear end of the pump 540 so that the food waste in the stirring means 200 becomes fermentation ( 600); Food waste processing system comprising a sorting means (700) which is connected to the stirring means (200) and sorts the foreign matter in the dry food waste generated and discharged from the stirring means (200). delete The method of claim 1, The conveying means is a food waste processing system, characterized in that the conveyor belt. The method of claim 1, The heat source supply means 300, the food waste treatment system, characterized in that the electric heater. The method according to claim 1 or 4, The heat source supply means 300, the heat is transferred to the remaining area except the center portion of the bottom surface of the stirring means 200, the food waste treatment, characterized in that installed to be transmitted to both sides as the center of the bottom surface system. delete The method of claim 1, The food waste treatment system, characterized in that the air injection means 550 is connected to the bypass pipe 530 corresponding to the rear end of the pump 540 so as to inject air into the atmosphere.

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