KR101385648B1 - A food waste dehydration and effluent treatment system using waste heat - Google Patents

Abstract

The present invention relates to a water-containing waste dehydration and treatment system, and more specifically, to a water-containing waste dehydration and effluent treatment system using waste heat, which treats the effluent and solid parts separated from a dehydration process during a treatment of water containing waste using the waste heat of a combustion furnace for combusting gas, thereby reducing a consumption amount of energy by recycling energy, and processing the water-containing waste in an environmentally friendly method; and separately treats the effluent separated from the dehydration process in a predetermined space of a wall body of the combustion furnace, and the solid parts inside the combustion furnace using waste heat, thereby improving treatment efficiency.

Description

A Food Waste Dehydration and Effluent Treatment System using Waste Heat}

The present invention relates to a system for dewatering and treating water-based waste, and more particularly, in the treatment of water-based waste by treating the desorption liquid and solids separated in the dewatering process by utilizing waste heat from a combustion furnace for burning gas. Energy recycling can reduce energy consumption and treat water-based wastes in an environmentally friendly manner.In particular, the desorption liquid separated in the dehydration process is treated in a certain space of the furnace wall and the solids are treated by using waste heat in the furnace. The present invention relates to a desorption liquid treatment system utilizing water wastewater dehydration and waste heat.

While the amount of water-based wastes from urbanization and population growth is increasing day by day, the treatment of water-based wastes (which collectively refers to wastes containing solids with large amounts of water, such as food wastes). The treatment of water-based wastes caused by various environmental pollutions and rising treatment costs has emerged as a social problem.

Many prior art technologies have been developed and disclosed to enable environmentally friendly or low cost treatment of such functional waste. The following (patent document) is also one of the technologies to treat such functional waste with low maintenance costs and environmentally friendly.

(Patent Literature)

Korean Patent Publication No. 10-2006-0000841 "Exhaust gas total amount of food waste treatment apparatus and food waste treatment method using the same" (2006. 01. 06. published)

The conventional food waste treatment technology disclosed in the above (patent document) condenses exhaust gas generated during the fermentation of food waste to remove moisture contained in the exhaust gas, and the exhaust gas from which moisture is removed has a predetermined amount of air and It is injected again into the fermentation tank to continuously circulate to remove the odorous substances contained in the exhaust gas by the microorganisms in the fermentation tank. The present invention relates to a total amount of exhaust gas circulating food waste treatment device, which reduces energy consumption and is easy to maintain because it is not installed.

However, the process of treating the functional waste using the fermentation process as described above (Patent Document) not only takes a lot of time, but also has a disadvantage in that the throughput per hour to treat the functional waste is limited to large-scale functional waste There is a limit to the speedy processing.

In addition, in the case of the prior art of burning and treating water-based waste, there is a problem in that it is not easy to apply due to the problem of treatment costs due to excessive energy consumption, as well as causing various environmental problems.

Therefore, the present invention has been developed due to the need for a new type of functional waste treatment system suitable for large-capacity functional waste treatment while reducing energy required for treatment to fundamentally solve the problems of the prior arts. It became.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems,

An object of the present invention is to treat the functional waste by removing the desorption liquid and solids separated in the dehydration process by utilizing the waste heat of the combustion furnace to burn the gas to reduce energy consumption by energy recycling and to treat the functional waste in an environmentally friendly manner. It is to provide a desorption liquid treatment system utilizing water waste water and waste water.

Another object of the present invention is to remove the desorption liquid from the dehydration process in a certain space of the furnace wall, the solids are treated by utilizing waste heat in the furnace, respectively, so as to increase the treatment efficiency of the functional waste dewatering and waste heat treatment using waste heat To provide a system.

Still another object of the present invention is to form a plurality of vents on the bottom surface of the solids storage container in the combustion furnace so that the combustion gas flows into the solids storage container through the vents to increase the solids treatment efficiency, dehydration and waste heat It is to provide a desorption liquid treatment system utilizing.

Another object of the present invention is a desorption liquid treatment system utilizing dehydrated water and waste heat to increase the combustion efficiency of the combustion furnace through the combustible gas generation supply unit for supplying the combustible gas generated by heating the functional waste to the combustion furnace. To provide.

Another object of the present invention is to supply the steam generated in the process of the desorption liquid by using waste heat in a predetermined space in the wall of the furnace to the heating unit of the flammable gas generation supply or to discharge the combustion gas discharged through the furnace. It is to provide a desorption liquid treatment system utilizing the waste water and the waste water dewatering to recover the portion of the combustion in the combustion section of the furnace to reduce energy consumption.

In order to achieve the object of the present invention described above, the desorption liquid treatment system utilizing the waste water and waste water dehydration includes the following configurations.

A desorption liquid treatment system utilizing water waste and dehydration of wastewater according to an embodiment of the present invention is a pressurizing means for pressurizing the water-containing waste in the housing, and storing the desorption liquid desorbed from the water-containing waste while pressurized by the pressurizing means Dewatering unit including a desorption liquid storage tank; And a desorption liquid treatment unit that processes the desorption liquid of the desorption liquid storage tank by utilizing waste heat of the combustion gas passing through a combustion furnace for combusting the gas.

According to another embodiment of the present invention, in the system according to the present invention, the desorption liquid processor supplies the desorption liquid of the desorption liquid storage tank to a predetermined space in the wall of the furnace to utilize waste heat of the combustion gas passing through the furnace. It characterized in that the treatment of the detachment solution.

According to another embodiment of the present invention, in the system according to the present invention, the desorption solution treatment unit includes washing means for supplying washing water to a predetermined space in the wall of the combustion furnace to wash a predetermined space after treatment of the desorption solution. It is done.

According to another embodiment of the present invention, the system according to the present invention by placing the solids in the state in which the desorption liquid is detached from the dehydration unit in the combustion furnace to process the solids by utilizing the waste heat of the combustion gas passing through the furnace. Solid content processing unit; characterized in that it further comprises.

According to another embodiment of the present invention, in the system according to the present invention, the solids processing unit includes a solids storage container for storing the solids, and a sliding means for slidingly moving the solids storage container into the combustion furnace. It is done.

According to another embodiment of the present invention, in the system according to the present invention, a plurality of vents are formed on the bottom surface of the solids storage container, and combustion gas passing through the combustion furnace is introduced into the solids storage container through the vents. It is characterized by increasing the solids treatment efficiency by the inflow.

According to another embodiment of the present invention, in the system according to the present invention, the desorption liquid treatment unit transfers the desorption liquid storage container for storing the desorption liquid in the combustion furnace, and the desorption liquid of the desorption liquid storage tank to the desorption liquid storage container. It comprises a means.

According to another embodiment of the present invention, the system according to the present invention further comprises a flammable gas generation supply unit for supplying the combustible gas generated by heating the functional waste to the combustion furnace.

According to another embodiment of the present invention, in the system according to the present invention, the combustible gas generating supply unit includes a waste storage unit in which water-containing waste is located, a heating unit for heating the waste storage unit, and a wall of the combustion furnace. It is characterized in that it comprises a first recovery line for supplying the steam generated in the process of the desorption liquid is processed by utilizing the waste heat in a predetermined space to reduce the energy consumption.

According to another embodiment of the present invention, in the system according to the present invention, the combustion furnace includes a second recovery line for reducing energy consumption by recovering a portion of the combustion gas discharged through the combustion furnace to the combustion unit. It features.

The present invention can obtain the following effects by the above-described embodiment, the constitution described below, the combination, and the use relationship.

In the present invention, by treating the desorption liquid and solids separated in the dehydration process by utilizing the waste heat of the combustion furnace to burn the gas in the treatment of water-containing waste, energy consumption can be reduced and energy-friendly waste can be treated in an environmentally friendly manner. Has an effect.

The present invention has the effect of increasing the treatment efficiency by allowing the desorption liquid separated in the dehydration process to be treated by using waste heat in a predetermined space of the furnace wall, solids in the furnace, respectively.

The present invention has the effect of forming a plurality of vents on the bottom surface of the solids storage container in the combustion furnace so that the combustion gas flows into the solids storage container through the vents to increase the solids treatment efficiency.

The present invention has the effect of increasing the combustion efficiency of the combustion furnace through the combustible gas generation unit for supplying the combustible gas generated by heating the functional waste to the combustion furnace.

According to the present invention, a part of the combustion gas discharged through the combustion furnace or supplied to the heating part of the flammable gas generation supply part by supplying the steam generated in the process of the desorption liquid by utilizing the waste heat in a predetermined space in the wall of the combustion furnace. It has the effect of reducing energy consumption by recovering to the combustion unit.

1 is a structural diagram of a desorption solution treatment system utilizing the waste water and waste water in accordance with an embodiment of the present invention
Figure 2 is a detailed view of the solid storage container of Figure 1
Figure 3 is a structural diagram of the desorption liquid treatment system utilizing the waste water and waste water dehydration according to another embodiment of the present invention
Figure 4 is a structural diagram of the desorption liquid treatment system utilizing the waste water and waste water dewatering according to another embodiment of the present invention
5 is a structural diagram of a desorption solution treatment system utilizing waste water and waste water dehydration according to another embodiment of the present invention

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the desorption liquid treatment system utilizing the waste water and the waste water in accordance with the present invention will be described in detail. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements, rather than excluding other elements, unless specifically stated otherwise.

1 and 2, the desorption liquid treatment system utilizing the waste water and the waste water in accordance with an embodiment of the present invention, the pressurizing means 120 for pressurizing the water-containing waste in the housing 110, the pressurization Dehydration unit 10 including a desorption liquid storage tank 130 for storing the desorption liquid 100 is desorbed from the water-containing waste while being pressed by the means 120; A desorption liquid treatment unit 20 for treating the desorption liquid 100 of the desorption liquid storage tank 130 by utilizing waste heat of the combustion gas passing through the combustion furnace 40 for combusting the gas; The solids 200 in which the desorption liquid is detached from the dehydration unit 10 in the combustion furnace 40 is disposed to process the solids 200 by utilizing waste heat of the combustion gas passing through the combustion furnace 40. Solid content processing unit 30; may include.

The dehydration unit 10 is configured to press the water-containing waste () in the housing 110 to separate the water-containing waste () into the liquid desorption solution 100 and the solid solids 200, for this purpose. Specifically, the desorption liquid storing the desorption liquid 100 which is pressurized by the pressurizing means 120 for pressurizing the water-containing waste () in the housing 110 and the desorbed water from the water-containing waste while being pressed by the pressurizing means 120. It may include a storage tank 130.

As shown in FIG. 1, the pressurizing means 120 pressurizes the water-containing waste () in the housing 110 of the dewatering unit 10 to desorb liquid 100 from the water-containing waste (). It is a structure which isolate | separates from the solid content 200. As the pressurizing means 120, a press or the like operated by hydraulic pressure may be utilized.

As shown in FIG. 1, the desorption liquid storage tank 130 includes a desorption liquid 100 which is desorbed from the water-containing waste pressurized by the pressing means 120 in the housing 110 of the dewatering part 10. It is a configuration to save separately. The desorption liquid 100 stored separately in the desorption liquid storage tank 130 may be treated by utilizing waste heat of the combustion gas passing through the combustion furnace 40 after being transferred to the desorption liquid treatment unit 20 as described below.

The desorption liquid treatment unit 20 utilizes the waste heat of the combustion gas passing through the combustion furnace 40 to combust the gas to remove the desorption liquid 100 of the water-containing waste () separately stored in the desorption liquid storage tank 130. It is the structure to process. That is, a combustion furnace in which the desorption solution 100 of the liquid component separated from the water-containing waste (10) by the action of the dewatering unit 10 is installed and operated in the desorption unit 20 to treat the exhaust gas. By using the waste heat of (40), by treating the energy without consuming a separate energy source to reduce the energy consumption and environmentally friendly waste (desorption liquid) to treat.

As an example of the desorption solution processing unit 20, as shown in FIG. 1, the desorption solution processing unit 20 is a desorption solution of the desorption liquid storage tank 130 in a predetermined space in the wall 410 of the combustion furnace 40. The desorption solution 100 may be treated by supplying 100 and utilizing waste heat of the combustion gas passing through the combustion furnace 40. That is, the combustion furnace 40 that burns and processes the exhaust gas maintains a high temperature as well as the interior of the wall 410. An example of the desorption liquid treatment unit 20 shown in FIG. 1 is the combustion furnace. (40) After forming a predetermined space in the wall 410, supplying the desorbing liquid 100 of the desorbing liquid storage tank 130 to a predetermined space in the wall 410 of the combustion furnace 40 through a separate line By spraying, the moisture of the desorption solution 100 is evaporated at a high temperature so that it can be processed.

Meanwhile, the desorption solution processing unit 20 may further include washing means 210 for supplying the washing water to a predetermined space in the wall 410 of the combustion furnace 40 to wash the predetermined space after the treatment of the desorption solution 100. Can be.

The cleaning means 210 is configured to clean the predetermined space in the wall 410 of the combustion furnace 40 for treating the desorption solution 100 as necessary or periodically, as shown in FIG. In addition, a separate line may be provided to supply washing water for washing to a predetermined space in the wall 410 of the combustion furnace 40. In addition, a drain 220 is formed at a lower portion of a predetermined space in the wall 410 of the combustion furnace 40 to discharge the washing water, as shown in FIG. Can be discharged.

The solid component processing unit 30 utilizes the waste heat of the combustion gas passing through the combustion furnace 40 by placing the solid content 200 in which the desorption liquid is detached from the dehydration unit 10 in the combustion furnace 40. It is a structure which processes the solid content 200. That is, the solids 200 of the solid component separated from the water-containing waste by the action of the dehydration unit 10 in the solids processing unit 30 is a combustion furnace 40 that is conventionally installed to treat exhaust gas and the like. By using waste heat of), it recycles energy without consuming a separate energy source, reducing energy consumption and treating functional wastes (solids) in an environmentally friendly manner. As an example of such a solid processing unit 30, as shown in Figure 1, the solid processing unit 30 is a solid content storage container 310 for storing the solid content 200, and the solid content storage container 310 Sliding means 320 for sliding the combustion furnace 40 may be included.

The solids storage container 310 is a configuration corresponding to a storage container for storing the solids 200 so as to process the solids 200 by utilizing the waste heat of the combustion furnace 40, in particular the solids storage container 310 As shown in Figure 2, a plurality of vent holes 311 is formed on the bottom surface of the solid state storage container 310 through the vent hole 311 hot combustion gas passing through the combustion furnace 40 The solids 200 stored in the solids storage container 310 are directly contacted with the combustion gas of high temperature by being introduced into the solids storage container 310 to increase processing efficiency (faster and completely dry). In addition, in order to increase the processing capacity of the solid content storage container 310 may be formed in a structure having a bottom of the multi-stage, the vent hole 311 may be formed in each of the bottom of the multi-stage.

The sliding means 320 is configured to slide the solids storage container 310 into the combustion furnace 40. That is, the solids 200 that have been processed are removed from the solids storage container 310, and the new solids 200 that need to be processed again need the solids storage container 310 to be filled in the solids storage container 310. The guide means for sliding the solid content storage container 310 into the combustion furnace 40 to be put into the combustion furnace 40 or to be taken out of the combustion furnace 40 according to. An opening 420 that can be opened and closed may be formed in the combustion furnace 40 at a corresponding position so that the solid content storage container 310 sliding through the sliding means 320 may move into and out of the combustion furnace 40.

Referring to Figure 3, the desorption liquid treatment system utilizing the waste water and the waste water dewatering according to another embodiment of the present invention, the desorption liquid processing unit 20 the desorption liquid to store the desorption liquid 100 in the combustion furnace 40 It may be formed in the form including a storage container 230, and a conveying means 240 for transferring the desorption liquid 100 of the desorption liquid storage tank 130 to the desorption liquid storage container (230).

That is, unlike the desorption solution processing unit 20 described above, the desorption solution processing unit 20 according to another embodiment burns by directly utilizing the space inside the combustion furnace 40 rather than a predetermined space in the wall of the furnace 40. The hot combustion gas passing through the furnace 40 may be directly used to treat the desorption liquid 100 separated from the water-containing waste. In this case, since the high-temperature combustion gas directly passing through the combustion furnace 40 is directly used, the desorption solution 100 may be treated more efficiently and quickly.

The desorption liquid storage container 230 is a storage space for storing the desorption liquid 100 supplied into the combustion furnace 40, and the desorption liquid 100 supplied into the combustion furnace 40 through a transfer means 240 to be described later. ) Is stored in the desorption liquid storage container 230 and is rapidly evaporated and processed due to the high temperature combustion gas passing through the combustion furnace 40. Unlike the solids storage container 310 described above, the desorption liquid storage container 230 frequently removes the desorption liquid storage container 230 from time to time since the desorption liquid 100 in the desorption liquid storage container 230 is almost evaporated and disappeared. Since the need to move in and out is extremely limited, there is no need to include a separate sliding means.

The transfer means 240 is a transfer line for transferring the desorption liquid 100 of the desorption liquid storage tank 130 to the desorption liquid storage container 230, and the desorption liquid storage tank 130 and the combustion furnace of the dewatering part 10. 40) The desorption liquid 100 of the desorption liquid storage tank 130 may be transferred to the desorption liquid storage container 230 through a pipe line connecting the desorption liquid storage container 230 and a pump providing a transfer force.

Referring to FIG. 4, in the desorption liquid treatment system utilizing hydrous wastewater and wastewater according to another embodiment of the present invention, the combustion furnace 40 generates combustible gas 300 generated by first heating the wastewater. It may further include; combustible gas generation supply unit 50 to supply to.

The combustible gas generation supply unit 50 is a separate configuration from the dehydration unit 10 described above, and is combustible gas generated when burning the functional waste by heating (preliminarily) to the functional waste to be treated. 300 (which may include methane, hydrogen, carbon monoxide, etc.) is supplied to the combustion furnace 40, more specifically in the combustion furnace 40 where the heating is done by a burner, Energy savings can be achieved by making combustion easier and by using less energy to reach the target temperature. To this end, the combustible gas generation supply unit 50 may include a waste storage unit 510 in which the water-containing waste () is located, and a heating unit 520 for heating the waste storage unit 510.

The waste storage unit 510 is configured to accommodate the functional waste to be heated primarily (preliminarily) by the heating unit 520 to be described later, is formed in the form of a container having a predetermined space and one side The heating unit 520, which will be described later, is positioned to allow heating of the water-containing waste in the waste storage unit 510. The water-containing waste heated in the waste storage unit 510 discharges combustible gas according to combustion, and the combustible gas discharged is supplied into the combustion furnace 40 through a separate line (piping).

The heating unit 520 is configured to be connected to one side of the waste storage unit 510 to primarily (preliminarily) heat the water-containing waste in the waste storage unit 510. The heating unit 520 may include a configuration such as a separate burner for heating.

Referring to Figure 5, the desorption liquid treatment system utilizing the waste water and the waste water in accordance with another embodiment of the present invention, the desorption liquid is treated by utilizing the waste heat in a predetermined space in the wall 410 of the combustion furnace 40 Combustion gas discharged through the first recovery line 530 and the combustion furnace 40 to reduce the energy consumption by supplying the steam generated in the process to the heating unit 520 of the combustible gas generation supply unit 50 The second recovery line 440 may further include a second recovery line 440 that recovers a portion of the combustion furnace 40 to the combustion unit 430 of the combustion furnace 40.

The first recovery line 530 recycles the waste heat of the gas (steam) generated in the process of the desorption solution 100 is processed in the desorption solution processing unit 20 and heats it 520 of the combustible gas generation supply unit 50. By using as an auxiliary heat source of the) to reduce the separate energy consumption, as shown in Figure 5, the first recovery line 530 is a constant in the wall 410 of the combustion furnace 40 High temperature gas (steam) generated during the process of the desorption liquid in the predetermined space in the wall 410 of the combustion furnace 40 by connecting between the space and the heating unit 520 of the combustible gas generation supply unit 50 By bypassing the heating unit 520 of the combustible gas generation supply unit 50 without just discharged to act as a separate auxiliary heat source for heating in the heating unit 520 to reduce the separate energy consumption by that much .

The second recovery line 440 recycles waste heat of the combustion gas discharged during the operation of the combustion furnace 40, and processes the waste heat of the combustion unit 430 of the combustion furnace 40 using a separate burner. In order to reduce energy consumption by using the auxiliary heat source of the (exhaust) gas to be heated), as shown in FIG. 5, the second recovery line 440 may be Completed combustion gas is discharged by connecting between the end portion of the combustion furnace 40 and the combustion unit 430 of the combustion furnace 40, the exhaust gas of the final discharged from the end portion of the combustion furnace 40 just discharged By bypassing the combustion unit 430 of the combustion furnace 40 to serve as a separate auxiliary heat source for heating in the combustion unit 430 to reduce the separate energy consumption by that much.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, Should be interpreted as belonging to the scope.

100: stripping solution 200: solid content
300: flammable gas
10: dewatering unit 110: housing
120: pressurizing means 130: desorption liquid storage tank
20: stripping solution processing unit 210: washing means
220: drain 230: desorption liquid storage container
240: transfer means
30: solid content processing unit 310: solid content storage container
311: vent 320: sliding means
40: combustion furnace 410: wall
420: opening 430: combustion part
440: second recovery line
50: flammable gas generation supply unit 510: waste storage unit
520: heating unit 530: first recovery line

Claims (10)

A dewatering unit including a pressurizing means for pressurizing the water-containing waste in the housing, and a desorption liquid storage tank for storing the desorption liquid being desorbed from the water-containing waste while being pressed by the pressurizing means;
And a desorption liquid treatment unit configured to process the desorption liquid of the desorption liquid storage tank by utilizing waste heat of the combustion gas passing through a combustion furnace to combust the gas.
The desorption solution treatment system using the dewatering waste water and waste heat characterized in that it comprises a washing means for supplying the washing water to a predetermined space in the wall of the combustion furnace to wash the predetermined space after the treatment of the desorbing liquid.
The method according to claim 1,
The desorption liquid treatment unit supplies the desorption liquid of the desorption liquid storage tank to a predetermined space in the wall of the furnace to utilize the waste heat of the combustion gas passing through the furnace to process the desorption liquid. Desorption solution system utilized. delete The system of claim 2 wherein the system is
A solid waste treatment unit for placing solids in the state in which the desorption liquid is detached from the dehydrating unit in the combustion furnace to process solids by utilizing waste heat of the combustion gas passing through the combustion furnace; Desorption solution treatment system utilizing dehydration and waste heat. 5. The method of claim 4,
The solids processing unit is a dewatering liquid treatment system utilizing the waste water dehydration and waste heat, characterized in that it comprises a solids storage container for storing the solids, and a sliding means for sliding the solids storage container into the combustion furnace. 6. The method of claim 5,
The bottom surface of the solids storage container is formed with a plurality of vent holes, the combustion gas passing through the combustion furnace is introduced into the solids storage container through the vent holes, so as to increase the efficiency of solid waste treatment, characterized in that the solid wastes dehydration and Desorption solution treatment system using waste heat. The method according to claim 1,
The desorption liquid treatment unit includes a desorption liquid storage container for storing the desorption liquid in the combustion furnace, and transfer means for transferring the desorption liquid of the desorption liquid storage tank to the desorption liquid storage container. Desorbent Treatment System. The system of claim 2 wherein the system is
A combustible gas generation supply unit for supplying combustible gas generated by first heating the functional waste to the combustion furnace; The dewatering liquid treatment system using the functional waste dewatering and waste heat further comprising a. The method of claim 8,
The combustible gas generation supply unit is a waste storage unit in which water-containing waste is located, a heating unit for heating the waste storage unit, and the steam generated in the process of the desorption liquid is processed by utilizing waste heat in a predetermined space in the wall of the combustion furnace. Dewatering treatment system utilizing the waste water and waste water, characterized in that it comprises a first recovery line for supplying the heating to reduce energy consumption. The method of claim 9,
The combustion furnace dewatering liquid treatment system utilizing the waste water and the waste water, characterized in that it comprises a second recovery line for reducing the energy consumption by recovering a portion of the combustion gas discharged through the combustion furnace to the combustion unit.

Images