KR101891088B1 - Organic waste drying system - Google Patents

Abstract

The present invention relates to an organic waste drying system, and more specifically, to an organic waste drying system which recycles mixture generated during drying organic waste, combusts malodors generated from the organic waste treatment, and re-supplies waste heat generated from the combustion to allow users to utilize the waste heat. The organic waste drying system includes a combustor, a steam generator, an air pre-heater, a fuel economizer, a water feeding tank, a drier, a steam distributor, a fuel tank, and a fuel transfer pipe.

Description

[0001] ORGANIC WASTE DRYING SYSTEM [0002]

The present invention relates to an organic waste drying system, and more particularly, to an organic waste drying system that recycles moisture generated during drying organic wastes, combusts odors generated in the treatment of organic wastes, ≪ / RTI >

In general, organic wastes such as food waste and sewage / wastewater sludge are treated by such methods as reclamation, incineration, feed conversion, and composting.

However, the above-described method has the following problems and is difficult to completely process.

Odor, insect and pathogenic bacterium occur during landfilling, and pollution of soil, water quality, atmosphere, ground water, etc. is caused by high concentration of leachate, which causes serious environmental problems.

Organic waste has a high water content at the time of incineration, resulting in high fuel consumption, high incineration costs, and the release of carcinogens such as dioxins and other atmospheric pollutants.

In the case of food waste, organic wastes are easy to decay due to the nature of food waste, and when they are used as livestock feeds, they are not sterilized and lead to deadly infectious diseases, thereby causing soil contamination.

When composting, the high salt content of food waste lowers the productivity and quality of crops such as poor germination, decadence, mortality, and disease.

Recently, organic wastes are treated by using a device capable of pulverizing, drying, fermenting, and the like.

As a prior art to be a background technique of the present invention, there have been proposed a method of manufacturing a semiconductor device, which is disclosed in Korean Patent Publication No. 10-1703870 (hereinafter referred to as Prior Art 1), Japanese Patent Publication No. 4209079 (hereinafter referred to as Prior Art 2) 0965932 (hereinafter referred to as Prior Art 3) and Korean Patent Registration No. 10-1442796 (hereinafter referred to as Prior Art 4).

The prior art document 1 is a system for reducing the amount of fuel consumed by supplying high-concentration odor of the dryer to the deodorizing furnace by using waste heat discharged from the waste heat boiler by the high concentration odor removing and fuel saving system for the recycling facilities.

The waste heat boiler of the prior art document 1 is burned using liquefied natural gas (LNG) and liquefied petroleum gas (LPG), but it requires high heat in order to completely burn off the odor, which requires a lot of fuel.

The prior art document 2 is a food waste dryer in which a part of the exhaust gas is joined to the high temperature drying air and circulated by the food waste dryer and its operation method.

Since the invention of the prior art document 2 must have a deodorizer for deodorizing the exhaust gas at a high temperature, a large space is required for installation of the equipment, and a high cost is required for installation and operation.

Preceding document 3 is a system to effectively remove odor by direct burning method and to remove waste odor by the efficient drying and odor control system of organic waste, and to supply waste heat generated by deodorization incineration to the boiler for recycling.

The invention of the prior art document 3 is that the fuel used in the deodorization incinerator is supplied with steam boiler using waste heat using LNG to boil water to generate steam to remove odor, but this also requires a lot of fuel to completely burn the odor, There is a problem in that the cost is increased.

Prior Art 4 is a method for recycling food wastes by molding a dehydrated cake into a pellet form and recycling it as its own fuel or feed and fertilizer.

The invention of the prior art document 4 uses a waste solid fuel (RDF) steam boiler to generate steam. However, when the waste solid fuel is incinerated, there is a problem that dioxin and harmful substances are released into the atmosphere and the air environment is contaminated.

<Prior Art Literature>

(Prior Art 1) Korean Patent Registration No. 10-1703870

(Prior Art 2) Japanese Patent Publication No. 4209079

(Prior Art 3) Korean Patent Registration No. 10-0965932

(Prior Art 4) Korean Patent Registration No. 10-1442796

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above problems occurring in the prior art, and it is an object of the present invention to provide an organic waste drying system for burning off odors generated during a drying process of organic wastes together with moisture, without installing a separate odor removal facility.

Another object of the present invention is to provide an organic waste drying system in which water (wastewater) or odor generated in organic wastes is recycled as a water supply tank or an air preheater to suppress the generation of wastewater and to minimize the regenerated steam.

It is another object of the present invention to provide an organic waste drying system capable of storing sludge generated from organic wastes in a fuel tank and recycling it as fuel.

Another object of the present invention is to provide a system for efficiently drying organic wastes by circulating exhaust heat generated in an organic waste drying system and saving energy consumed in the removal of odors, wastewater or steam, thereby saving fuel.

In addition, the present invention provides an organic waste drying system that sterilizes organic wastes dried by introducing high-temperature steam into a dryer to kill pathogenic microorganisms.

According to an aspect of the present invention, there is provided a combustor comprising: a combustor for combusting fuel to generate high temperature and burning off odors introduced through an air preheater; A steam generator for generating steam by high-temperature exhaust heat discharged from the combustor; An air preheater for introducing air or odor from the outside and discharging exhaust heat discharged from the atmospheric air or odor and the steam generator to the combustor; A steam generator for heating the water introduced from the water supply tank by the exhaust heat of the steam generator and supplying the heated water to the steam generator; And a water supply tank for storing water to be supplied to the carbon burner.

The present invention further includes a dryer for drying and discharging the organic waste through the steam supplied from the steam generator.

Further, the present invention is characterized by further comprising a steam distributor for discharging the steam generated in the steam generator.

Further, the present invention relates to a fuel tank for storing fuel; And a fuel transfer pipe for transferring the fuel stored in the fuel tank and supplying the fuel to the combustor.

The fuel is characterized by the use of wood pellets and / or sludge pellets.

The present invention relates to an air preheater comprising: a first pipe for introducing air or odor from the outside into the air preheater; A second pipeline into which the incoming air or odor and exhaust heat discharged from the steam generator flows into the combustor again; A third pipe which flows the water discharged from the water supply tank into the carbon burner; And a fourth pipe for introducing steam generated by heating the water introduced from the water supply tank into the steam generator.

The present invention can reduce the environmental pollution because the odor generated during the drying process of the organic waste is burned together with the steam without installing a separate odor removal facility.

In the present invention, odor or moisture generated from organic wastes is recycled to a water supply tank or an air preheater, thereby suppressing the generation of wastewater, as well as improving energy efficiency and minimizing the regenerated steam.

In addition, the present invention can recycle the sludge generated from organic wastes as a fuel stored in a fuel tank.

Further, the present invention circulates the exhaust heat generated in the organic waste drying system to reduce energy consumed in the removal of odor, wastewater or steam, thereby significantly reducing the amount of fuel consumed.

Further, the present invention can sterilize the organic waste that is dried by introducing high-temperature steam into the dryer, thereby killing the pathogenic microorganisms and producing them as high quality feed and fertilizer raw materials.

1 is a block diagram showing the construction of an organic waste drying system according to the present invention.
2 is a block diagram of the entire drying system including the configuration of the organic waste drying system according to the present invention.
<Description of Symbols>
10: piping; 11: first piping; 12: second piping; 13: third piping; 14: fourth piping; 15: fifth pipe; 16: sixth piping; 17: seventh pipe;
100: thermal hole; 110: combustor; 120: fuel tank; 121: Fuel transfer pipe; 130: steam generator; 131: steam distributor; 140: air preheater; 150; 160: water supply tank; 170: dryer; 171: Dry air preheater; 180: filter and dust collector; 190: Chimney
200: control unit; 210: fuel control unit; 220: steam control unit; 230: air preheating control section; 240: water supply controller; 250: display portion; 260: measuring section; 270: an alarm unit;
300: preprocessing section; 310: crushed organic waste repository; 311: discharge conveyor; 312: dispensing conveyor; 320: crushed organic waste storage tank;
400: drying section; 410: byproduct cooler; 420: cooling tower; 430: a selector; 440: byproduct reservoir; 450: dust collector;

Hereinafter, the present invention will be described in detail with reference to examples.

The objects, features and advantages of the present invention will be easily understood by the following embodiments.

The present invention is not limited to the embodiments disclosed herein, but may be embodied in other forms. It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , &Lt; / RTI &gt; equivalents, or alternatives.

Therefore, it should be understood that the present invention should not be limited by the following embodiments, and all transformations included in the technical idea and technical scope of the present invention are included. That is, those skilled in the art will appreciate that various modifications, additions, substitutions, substitutions, improvements, additions, substitutions, additions, substitutions, additions, substitutions, additions, It will be understood that it is also within the scope of the invention.

The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated and described in the drawings. The sizes of the elements or the relative sizes between the elements in the figures may be exaggerated somewhat for a clear understanding of the invention. Further, the shape of the elements shown in the drawings may be somewhat modified by variations in the manufacturing process or the like.

Accordingly, the embodiments disclosed herein should not be construed as limited to the shapes shown in the drawings unless specifically stated, and should be understood to include some modifications.

On the contrary, the various embodiments of the present invention can be combined with any other embodiments as long as there is no clear counterpoint. Any feature that is specifically or advantageously indicated as being advantageous may be combined with any other feature or feature that is indicated as being preferred or advantageous. That is, various aspects, features, embodiments, or implementations of the invention may be used singly or in various combinations.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only, and is not intended to be limiting as to the scope of the claims, and all technical and scientific terms used herein have the same meanings as commonly understood in the art Has the same meaning as is generally understood by a person with. The singular expressions include plural expressions unless the context clearly dictates otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

&Lt; Example 1 >

1 is a block diagram showing the construction of an organic waste drying system according to the present invention.

Referring to FIG. 1, an organic waste drying system according to the present invention includes a combustor 110; Steam generator 130; An air preheater 140; A banderoller 150; And a water supply tank (160).

First, the combustor 110 burns and deodorizes the odor supplied from the air preheater 140 through the second pipe 12 due to the high heat generated by burning the fuel.

In addition, the combustor 110 can be recycled by supplying the exhaust heat discharged from the steam generator 130 and the introduced air, rather than being supplied only with bad odor through the second pipe 12, so that the consumed fuel can be remarkably reduced have.

A fuel tank 120 and a fuel transfer pipe 121 may be further included to supply fuel to the combustor 110. [

The fuel tank 120 stores the fuel and supplies the stored fuel to the combustor 110 through the fuel transfer pipe 121.

The fuel may be any one or more of wood pellets, sludge pellets, and solid fuel (SRF) without using LNG or LPG, but is not limited thereto.

In the present invention, it is best to use wood pellets and / or sludge pellets rather than using solid fuels where the efficiency of the steam generator is reduced.

In particular, wood pellets have the best 1,576kcal, 1,050kcal, and 861kcal, respectively, compared with LNG and LPG, and the lowest fuel cost is the lowest cost to produce one steam.

The pellets having a diameter of 4 to 14 mm and a length of 2 to 50 mm can be used, but it is preferable that the pellets have a diameter of 6 to 12 mm and a length of 3 to 40 mm to meet the international standard quality standards, It does not.

This is because it can provide a certain efficiency when supplied to the combustor 110 with a constant diameter and length.

If the ash content of the pellets exceeds 3% by weight, the amount of impurities such as inorganic or non-combustible residues increases, and when the pellets are used as fuel, a large amount of the pellets must be consumed. Can be generated.

Accordingly, the ash content of the pellets may be 3% by weight or less, preferably 0.7 to 2% by weight, more preferably 1 to 1.5% by weight, but is not limited thereto.

If the water content of the pellets exceeds 10% by weight, the pellets have a short burning time at the time of combustion and have a low calorific value, so that a large amount of pellets can be used and the cost can be increased.

Therefore, the water content of the pellets may be 10% by weight or less, preferably, the water content is 8% by weight or less. However, the present invention is not limited thereto.

The wood pellet may be a hardwood or softwood, and preferably a softwood rather than a hardwood with a lot of dust, but is not limited thereto.

The steam generator 130 evaporates water at a high temperature of exhaust heat (about 850 DEG C or higher) discharged from the combustor 110 to generate steam.

The steam generated in the steam generator 130 can be supplied to the dryer 170 at a pressure of 8 kg / cm ² through the steam distributor 131 installed at one side of the steam generator 130.

Accordingly, the dryer 170 for drying the organic waste through the steam supplied from the steam generator 130 may be further included.

The condensed water and steam generated in the dryer 170 are supplied to the dry air preheater 171 through the sixth pipe 16 to preheat the air flowing in from the outside through heat exchange, To the water supply tank 160.

The air preheated through the dry air preheater 171 flows into the dryer 170.

The above pressure may be increased, but not limited, to the treatment of more organic wastes as a basis for treating 100 tonnes of organic waste.

The air preheater 140 preheats the air or odor introduced from the outside through the first pipe 11 at the exhaust heat (about 280 ° C.) containing the steam discharged from the steam generator 130, (About 280 DEG C) and flows into the combustor 110 through the second pipe 12.

In addition, the temperature of the exhaust heat including the steam introduced from the steam generator 130 due to the heat exchange in the air preheater 140 is reduced, and the steam discharged to the outside is not generated as much as possible.

The second pipe 12 may further include a pressurized blower that is a blower for air compression of a low wind pressure and supplies about 50% of the amount of air required for the combustor 110 and recycles exhaust heat to reduce the energy efficiency of the combustor 110 Fuel consumption can be reduced.

The heat absorber 150 discharges the exhaust heat discharged from the steam generator 130 from the water supply tank 160 through the third pipe 13 to the exhaust heat (about 100 ° C. or less), which is partially introduced through the air preheater 140, And supplies the generated steam to the steam generator 130 through the fourth pipe 14.

The water supply tank 160 stores water to be supplied to the cutlery 150.

The stored water may be, but not limited to, leachate discharged from organic waste, leachate generated from a dryer, or waste water.

In the present invention, food waste, sewage sludge, wastewater sludge and the like can be used as the organic waste, and it is preferable to use food waste to be used as a feed or fertilizer by producing it as a dry by-product, but it is not limited thereto.

&Lt; Example 2 >

The control unit 200 may be further included in the organic waste drying system of the first embodiment (not shown).

The control unit 200 includes a fuel control unit 210, A steam control unit 220; An air preheating control unit 230; And a water supply control unit 240.

Also, the display unit 250 displays the information in real time; A measurement unit 260 for measuring the temperature and pressure of each system; And a notification unit 270 for notifying that the operation of the system is stopped or the operation of the system is stopped.

In addition, the controller 200 receives the sensor signal of the measuring unit and outputs an operation signal to automatically perform the function of driving and stopping the operation of the organic waste drying system of the present invention.

Further, the control unit 200 performs manual switching through the driving or stopping operation of the buttons provided on the display unit 250.

The fuel control unit 210 controls the fuel in the fuel tank 120 to flow into the fuel feed pipe 121 when the temperature of the combustor 110 measured by the measuring unit 260 falls below a predetermined temperature And is maintained at a predetermined temperature inside the combustor 110, so that steam generation can be constantly maintained.

A steam control unit 220 is the pressure of the steam generator 130 is measured by the measuring unit 260 rises to a predetermined pressure (approximately 9kg / cm ²⁾ or more, the steam in the steam generator 130 Steam distributor 131 The steam can be automatically supplied to the dryer 170 at a pressure of about 8 kg / cm ² .

The air preheating control unit 230 controls the air preheating control unit 230 to control the valve of the first pipe 11 when the exhaust heat including the steam discharged from the steam generator 130 measured through the measuring unit 260 falls below a predetermined temperature It is possible to preheat the air after introducing air or odor from the outside.

The air preheating control unit 230 operates the valve of the second pipe 12 to supply the preheated air or the exhaust heat containing the odor and steam to the combustor 200 through the first pipe 11, Is supplied to the combustion chamber (110), and the atmosphere required for combustion is supplied, so that the combustion reaction can be continuously operated.

When the pressure of the steam generator 130 measured by the measuring unit 260 drops below a predetermined pressure (about 7 kg / cm ² ), the water supply controller 240 operates the valve of the third pipe 13, The water in the steam generator 160 may be supplied to the economizer 150 to generate steam by heating the water.

In addition, the water supply controller 240 operates the valve of the fourth pipe 14 to supply steam to the steam generator 130 to maintain the steam flowing into the dryer 170 constant.

The display unit 250 receives and outputs sensor signals of the temperature and pressure measured by the measuring unit 260 and displays the signals. The fuel controller 210, A steam control unit 220; An air preheating control unit 230; And the water supply control unit 240 can be displayed in real time.

The display unit 250 may be implemented in an analog manner or a digital manner, and may be implemented in a touch screen form in a digital manner, but is not limited thereto.

The measuring unit 260 may include a temperature measuring unit and a pressure measuring unit for measuring the temperature and pressure of each system, and may transmit the measured value to the display unit 250 as a sensor signal.

The notification unit 270 may display sound or light to notify when the operation of each system is not performed or an error of the system or an operation of the system is stopped.

A fuel control unit 210; A steam control unit 220; An air preheating control unit 230; Or the notification unit 270 for a predetermined time (about 15 to 60 seconds) when the operation of each system is not performed in the water supply control unit 240, or when the system error or the operation stopping time is detected for one minute or more, A light emitting diode or a red / yellow light emitting diode may be activated to inform the controller 200 of the status, but the present invention is not limited thereto.

&Lt; Example 3 >

2 is a block diagram of the entire drying system including the configuration of the organic waste drying system according to the present invention.

The organic waste drying system of the first or second embodiment includes a pre-treatment unit 300; And a drying unit 400 may be further included.

The organic waste drying system of the first or second embodiment may be included in the heat supply unit 100.

First, the preprocessing unit 300 selects and separates the broken organic wastes introduced through the carry-in vehicle in order to ensure stability.

Also, the pretreatment unit 300 includes a crushing organic waste storage tank 310; And a crushing organic waste storage tank 320, although the present invention is not limited thereto.

The crushed organic waste storage tank 310 is provided with a space capable of receiving crushed organic waste and is supplied with crushed organic waste through an externally transported vehicle.

Further, the crushed organic waste is discharged through a discharge conveyor 311 installed at the lower end of the crushed organic waste storage tank 310.

At this time, the discharge conveyor 311 includes a magnetic separator to automatically sort and separate the ferrous metals that have not been separated yet.

The discharged organic waste flows into the distribution conveyor 312 and flows into the supply feeder installed at both ends of the lower portion of the distribution conveyor.

The organic waste introduced into the feeder feeder may be introduced into the crushed organic waste storage tank 320 via the feed pump.

 The crushed organic waste storage tank 320 is constituted by a conical drum on which a slope is formed and includes two outlets at the lower end thereof to introduce the introduced organic waste into the dryer 170 through the feed pump.

The drying unit 400 includes a by-product cooler 410; A cooling tower 420; A selector 430; A byproduct reservoir 440; And a dust collector 450 may be included.

The dried by-products dried in the dryer 170 are discharged to the by-product cooler 410.

The steam generated in the dried by-product is sucked and discharged to the cooling tower 420. The steam introduced into the cooling tower 420 is connected to the cold air and is evaporated to remove the heat to cool the by-product cooler 410, Of dry by-products.

The cooling tower 420 may be a natural ventilation type or a forced ventilation type. Preferably, the cooling tower 420 may be of a forced ventilation type having excellent performance and excellent stability of operation, but is not limited thereto.

The dry by-products discharged from the by-product cooler 410 flow into the sorter 430.

The selector 430 is composed of a vibration discriminator and a magnetic separator in this order.

First, in order to select foreign matters, the vibration discriminator vibrates to discharge only large particles, and only small particles are discharged to a magnetic separator.

Thereafter, the dried by-products that are introduced into the magnetic separator are sorted by the iron metal and discharged to the outside so that only the dry by-products are discharged to the by-product storage tank 440.

At this time, the outside air can be transferred using a high-pressure blower and an ejector to discharge only dry by-products to the by-product storage tank 440.

The dried by-products that have flown into the byproduct storage tank 440 are discharged in the order of the discharge conveyor and the discharge conveyor installed at the lower end of the byproduct storage tank 440, and are discharged to the outside through the transportation vehicle.

The dry by-products that are taken out of the organic wastes can be sterilized and dried due to the steam, not the wet wastes which are discharged from the livestock infectious diseases as food wastes, and can be used as high quality feed and fertilizer raw materials.

The odor and steam generated in the dryer (170) are sucked into the dust collector (450) and discharged to the air preheater (140) through an exhaust blower.

At this time, the odor and steam generated from the crushed organic waste storage tank 310 and the air introduced from the outside are also discharged to the air preheater 140. These odor and steam are completely burned in the combustor 110, It also does not recur.

The thermal supply unit 100 removes odors, leachate, and the like generated in the dryer 170 and supplies a heat source for drying.

The overlapping portions described in the embodiments are omitted.

A filter (180) at the rear end of the absorbent (150); And a chimney 190 may be further included.

The filtration and dust collector 180 separates only the particles passing through the filter medium through dust particles (dust) generated by the combustion of fuel flowing from the absorbent 150 through the fifth pipe 15, Only the gas is discharged to the chimney.

 The filtration rate is a ratio of the air flow rate to the filter area and is performed at 2 m / min or less, which is a great influence on the dust collecting efficiency, preferably 0.5 to 2 m / min, but is not limited thereto.

In addition, the dust is discharged to the container located at the lower end of the filter and dust collector 180 and is removed.

The dust is removed, and the odor and steam removed gas is discharged to the stack 190 through the induction blower and discharged to the atmosphere.

At this time, contaminants such as moisture and dust are removed through a vent filter installed on the upper side of the byproduct storage tank 440, and the air is discharged to the stack through the blower through the blower.

The organic waste drying system according to the present invention is free from odor and steam, and is not aesthetically pleasing, and does not have a deodorizing device for discharging odor to the outside, thereby reducing the area burden and significantly reducing the generation of complaints.

In addition, it minimizes the regeneration of the steam, so that it is almost discharged into the chimney, which is good for aesthetic appearance.

Furthermore, it is possible to completely prevent the pollution of water by using leachate generated during the organic waste drying process.

INDUSTRIAL APPLICABILITY The present invention can be industrially used as an organic waste drying system that utilizes the moisture generated during drying organic wastes, burns offensive odors, and recycles waste heat generated during combustion.

Claims (6)

The heat-
A combustor for combusting the fuel to generate high temperature, combusting and removing the odor introduced through the air preheater, and recycling the exhaust heat and the air discharged from the steam generator to reduce waste fuel;
A steam generator for generating steam by high-temperature exhaust heat discharged from the combustor;
An air preheater for introducing odor generated from an atmospheric or crushed organic waste storage tank from the outside and discharging the exhaust heat discharged from the steam or the steam generator to the combustor;
An evacuator for supplying steam generated by heating the water introduced from the water supply tank to the steam generator by exhaust heat of the steam generator;
A water supply tank for storing water to be supplied to the carbon fiber burner;
A dryer for drying and discharging the organic waste through the steam supplied from the steam generator;
A dry air preheater for preheating the air introduced from the outside by the introduced condensed water and steam and introducing the preheated air into the dryer;
A steam distributor for supplying steam generated in the steam generator to the dryer;
A fuel tank for storing fuel;
A fuel transfer pipe for transferring the fuel stored in the fuel tank and supplying the fuel to the combustor;
A first pipe for introducing air or odor from the outside into the air preheater;
A second pipeline into which the incoming air or odor and exhaust heat discharged from the steam generator flows into the combustor again;
A third pipe which flows the water discharged from the water supply tank into the carbon burner;
A fourth pipe for introducing steam generated by heating the water introduced from the water supply tank into the steam generator;
A fifth pipe for introducing the dust containing the dust generated by the combustion of the fuel discharged from the crusher into the filter;
A sixth pipe for supplying the condensed water and steam generated after drying in the dryer to the dry air preheater; And
And a seventh pipe for supplying condensed water and steam supplied to the dry air preheater to the water supply tank,
The fuel uses wood pellets,
The pre-
A broken organic waste storage tank for storing organic waste introduced from the outside;
A discharge conveyor installed at the bottom of the crushed organic waste storage tank and including a magnetic separator to sort and separate metals to discharge organic waste;
A dispensing conveyor for introducing the discharged organic waste into the feeder; And
And a broken organic waste storage tank for discharging organic wastes introduced into the supply feeder to a dryer through a feed pump,
In the drying section,
A byproduct cooler for discharging dry byproducts by introducing cold air discharged from the cooling tower to lower the temperature of the dry byproducts and sucking the steam generated from the dry byproducts from the dryer and discharging the byproducts to the cooling tower;
A cooling tower for introducing steam discharged from the by-product cooler, generating cold air using a natural ventilation type or forced ventilation type, and discharging the generated cold air to a by-product cooler;
A magnetic separator for discharging large particles to the outside by vibration and discharging small particles to a magnetic separator and a magnetic separator for discharging the dried metal byproducts to the outside, A selector;
A by-product storage tank for introducing dry by-products discharged from a magnetic separator using an external air introduced from a high-pressure blower and an ejector, a discharge conveyor installed at a lower end, and a drying by-product discharged through a conveying vehicle through a conveying conveyor; And
And a dust collector for sucking odor and steam generated in the dryer and discharging the mist to the air preheater through an exhaust blower,
A filter and a chimney are included at the rear end of the cutter,
The filtration and dust collector passes the gas containing dust generated by the fuel combustion flowing in the absorber through the fifth pipe to the filter material at a filtration rate of 0.5 to 2 m / min to separate the particles and discharge the filtered gas to the chimney , The dust is discharged to the container located at the bottom of the filtering dust collector,
Wherein the chimney discharges dust, odor, and vapor-removed gas to the atmosphere through an artificial blower. delete delete delete delete delete

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