KR101414510B1 - Measured Rate-Gabage Reduction Drying Apparatus using Vapor Recycling System - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an exhaust steam recycling type weight loss reducing dryer, and more particularly, to an exhaust steam recycling type weight loss reducing drying apparatus which recycles food waste to a drying apparatus without releasing exhaust steam generated after crushing and drying, Thereby preventing the air pollution and reducing the production cost and reducing the consumption of electric power. By arranging the crushing and stirring apparatus for food garbage such that the crushing blades of different shapes are arranged to be spaced apart from each other, the load applied to the crushing- The present invention relates to an exhaust steam recirculation type weight loss reducing dryer that does not cause problems such as clogging of piping and condensing means due to fine dust generated during drying.

Description

[0001] The present invention relates to a drying apparatus for reducing the amount of exhaust gas recirculated,

The present invention relates to a method and apparatus for disposing food waste by crushing and drying food waste, reducing the load at the time of agitation and crushing, preventing clogging of equipment and piping by fine dust, and reducing the energy by recirculating exhaust steam, To a weight loss dryer.

In general, organic pollutants such as food waste are difficult to transport and store due to high water content, and they are easily decayed and odor. When they are buried in landfill, they cause a large amount of leachate to contaminate streams and groundwater.

Accordingly, various apparatuses for crushing and drying such food waste have been developed. However, odorous exhaust steam generated during crushing and drying has been directly discharged to the atmosphere, leading to a source of the offensive odor. After the odor and harmful substances of the odorous exhaust steam are removed There has been a problem in that the production cost is increased and the process is complicated due to an increase in energy consumption.

In addition, when bovine bone, pig bone, foreign matter, and the like are mixed in the food waste to be crushed and dried in the crushing and drying of the food waste, stirring and crushing are not smooth as the load of the stirring device is increased, there was.

The polyethylene (PE) envelope used in the manufacture of food garbage bags is made of high density polyethylene (HDPE), linear low density polyethylene (LLDPE) and low density polyethylene (LDPE) , And the bag of the food garbage weight supplied to the market is discharged and purchased by the consumer, and the bag of the discharged trash weighing bag is collected and dried and crushed together with the above-mentioned food waste contained in the landfill, and the food waste Moisture is evaporated and shredded in the dry crushing apparatus, and it is discharged into the dried food waste used as fertilizer. In this case, in the case of the food waste-weight envelope which is charged into the dry-crushing apparatus while the food waste is contained in the dry-crushing apparatus, it must be melted inside the dry-crushing apparatus. Therefore, Development of a device is required.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a method and apparatus for recycling exhaust steam generated during the pulverization and drying of food wastes, It has a separate working process for the process and a reduction in the production cost. The crushing blade is formed so that the load applied to the crushing means for crushing the food waste is dispersed, and the equipment and the pipe are clogged due to the fine dust generated during the drying And the like can be solved. The present invention provides an exhaust steam recirculation type weight loss dryer.

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

As a means for solving the above problems, the present invention provides a drying device (10) for crushing and drying food waste; A primary dust filter (20) installed in the drying apparatus (10) for filtering foreign matter of steam generated in the drying apparatus (10); A secondary dust filter (30) for filtering residual impurities in the unfiltered vapor with the primary dust filter (20); Condensing means (40) for condensing the steam passing through the secondary dust filter (30) to remove moisture; A circulation device (50) for circulating the uncondensed vapor in the condensing means (40) to the drying device (10) without discharging it to the atmosphere so as to be used for drying food waste; .

As described above, according to the present invention, since the exhaust steam generated after the pulverized and dried food waste is recycled and used, the equipment cost required to prevent air pollution due to the exhaust steam exhaust and deodorize the exhaust steam does not occur, The amount of electricity consumed is also reduced, and the deodorization process is eliminated, which simplifies the process.

In addition, the present invention has the effect of solving the problem that the fine dust contained in the water vapor generated during the drying is cleaned, and the piping and condensing means are clogged with fine dust.

In addition, when food waste is crushed, the crushing blade is separated from the crushing blade by different shapes, so that the load of the stirring device is dispersed, so that stirring and crushing become more smooth and the drying efficiency is increased.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of an embodiment showing the constitution of an exhaust steam recirculation type weight loss dryer according to the present invention. Fig.
2 is a perspective view of an embodiment of a secondary dust filter and a cleaning device according to the present invention.
Figures 3 to 4 are views of one embodiment showing a crushing and stirring means according to the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

According to one embodiment of the present invention,

A drying device (10) for crushing and drying food waste; A primary dust filter (20) installed in the drying apparatus (10) for filtering foreign matter of steam generated in the drying apparatus (10); A secondary dust filter (30) for filtering residual impurities in the unfiltered vapor with the primary dust filter (20); Condensing means (40) for condensing the steam passing through the secondary dust filter (30) to remove moisture; A circulation device (50) for circulating the uncondensed vapor in the condensing means (40) to the drying device (10) without discharging it to the atmosphere so as to be used for drying food waste; .

The crushing and agitating means 12 includes a rotating shaft 11 and a crushing and stirring means 12 for crushing and stirring the food waste. The crushing and agitating means 12 includes a rotating shaft 11, The load of the crushing and agitating means 12 can be reduced by 50% or more.

The crushing and agitating means 12 includes a helix-type central crushing blade 13 protruding from a central portion of the rotating shaft 11 and rotated; A paddle type side grinding blade 13 for dispersing food waste mixed into both side walls of the drying device 10 by the central grinding blade 13 by being rotated at both sides of the rotating shaft 11 by being separated from the central grinding blade 13, (16); .

The secondary dust filter 30 is provided with a cleaning device 31 for supplying detergent and water to the inside of the secondary dust filter 30 to remove fine dust and oil contained in the steam generated during drying, (30) and the condensing means (40), and that the condensing means (40) is not clogged with dust and oil.

In addition, the cleaning device 31 is provided with a control valve 32 so that detergent and water can be automatically or manually introduced into the secondary dust filter 30 periodically.

A hot air heater 60 is provided between the circulation device 50 and the drying device 10 so that the uncondensed steam can melt the object to be heated in the drying device 10, And is heated to a relatively high temperature so as to be supplied as hot air.

Further, the object to be heated is characterized by being a general-purpose plastic bag made of LDPE, LLDPE or HDPE.

Hereinafter, an exhaust steam recirculation type weight loss dryer according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. FIG.

As shown in the drawing, the exhaust steam recirculation type weight loss reducing dryer according to the present invention includes a drying device 10, a primary dust filter 20, a secondary dust filter 30, a condensing means 40, a circulation device 50, .

The drying device (10) is a place where food waste is put in an envelope of a standard amount. In the drying device (10), the food waste is dried while being crushed and stirred.

In order to this end, a rotating shaft 11 rotated by a motor device is provided in the drying apparatus 10, and a crushing and stirring means 12 composed of a plurality of crushing blades is protruded from the outer circumference of the rotating shaft 11 have.

The crushing and agitating means 12 includes a central crushing blade 13 and a plurality of side crushing blades 16. The crushing blade 13 protrudes from the center of the rotating shaft 11 and is rotated. And the food waste put into the drying apparatus 10 by the central crushing blade 13 is crushed and agitated.

The side crushing blade 16 protrudes from the outer circumferential edge of the rotating shaft 11 like the above-described center crushing blade 13 and is separated from the side crushing blade 16 and protruded on both sides of the rotating shaft 11 . As the rotary shaft 11 rotates, the food waste which is crushed and agitated by the central crushing blade 13 at the center of the drying device 10 is separated from the center crushing blade 13 by the center crushing blade 13, So that the inside and outside walls of the drying apparatus 10 are separated from each other so that food waste collected at both ends of the rotating shaft 11 The plurality of side crushing blades 16 can be dispersed while stirring and crushing.

In the present invention, as described above, the crushing and stirring means 12 composed of the center crushing blade 13 and the side crushing blade 16 are not all integrally connected to each other in the rotary shaft 11, The side crushing blades 16 are spaced apart from each other on both sides of the rotating shaft 11 so as to protrude from the rotating shaft 11. This is because when the crushing blade of the rotating shaft 11 is integrally connected, In order to solve such a problem, in the present invention, the center-crushing blade 13 and the plurality of side-crushing blades 16 are disposed in the center of the crushing blade, So that they are individually projected from the rotary shaft 11 so that the load applied to the shredding blade can be injected without being concentrated.

The helical type means that a plurality of first support rods 14 protrude from the rotary shaft 11 horizontally or vertically with respect to the ground surface, The paddle type of the side crushing blade 16 is a shape in which the second support rods 17 are directed toward all directions so as to be perpendicular to the rotation axis 11, And a crush plate 18 having a plate shape at the end of each of the second support rods 17 and coupled at an angle to the setting angle ex (60 ° (?), Or 50 ° (?) At an oblique angle) The shape of the center crushing blade 13 and the plurality of side crushing blades 16 is such that the center of the rotating shaft 11 is divided into the center crushing blade 13 and the side crushing blade 16 in order to disperse the load generated when the food waste is stirred and broken. If the blade 13 is formed with the side crushing blade 16 spaced from both sides of the central crushing blade 13, A variety of changes are possible in accordance with the course.)

The primary dust filter 20 is installed to communicate with the drying apparatus 10 inside or on the side of the drying apparatus 10 described above. The primary dust filter 20 removes various foreign substances contained in the drying steam generated in the drying apparatus 10, It acts primarily to filter dust.

The secondary dust filter 30 is connected to the outside of the drying apparatus 10 and the primary dust filter 20 to remove residual foreign matter and dust in the dry dust filter which are not filtered by the primary dust filter 20, It serves to filter by car. In addition, when the dry steam is filtered through the secondary dust filter 30, the condensed water generated while the heated steam is cooled is discharged to the condensate tank 70.

The primary dust filter 20 and the secondary dust filter 30 can be variously used by the user for the purpose of removing dust and foreign substances in the steam.

The cleaning device 31 is installed in the secondary dust filter 30 and serves to supply detergent and water into the secondary dust filter 30. When the high-temperature steam generated in the drying apparatus 10 moves through the primary dust filter 20 and the secondary dust filter sequentially through the piping to the condensing means 40 described later, It is possible to prevent the problem that the piping is clogged due to residual dust remaining even though it is filtered through the filter 30 or that the inside of the condensing means 40 is clogged.

That is, the cleaning device 31 supplies detergent and water to the inside of the secondary dust filter 30 to remove dust and oil in the steam passing through the secondary dust filter 30, 40, respectively.

The detergent and the water supply to the secondary dust filter 30 through the cleaning device 31 are controlled by the control valve 32 (solenoid valve (not shown)) at the communicating portion between the cleaning device 31 and the secondary dust filter 30, Valves, ball valves, etc.) so that detergent and water can be supplied periodically, automatically or manually by the user. (That is, after the user preset the detergent and the water supply time period and the supply time, the supply amount of the detergent and the water, etc.), the control valve 32 is automatically opened and closed so that the detergent and water are supplied, (32) so as to supply detergent and water.

The condensing means 40 is a place where the dry steam from which dust has been removed flows through the first and second dust filters 20 and 30 to remove the steam contained in the introduced steam. And the condensed water generated at this time is stored in the condensate tank 70.

The condensing means 40 cools the steam flowing in the flow pipe by allowing the outside air to pass through the plurality of fans outside the flow pipe into which the steam flows, so that the moisture contained in the steam can be removed. ex: air-cooled condenser, etc.)

The circulation device 50 recirculates the vapor passing through the condensing device 40 into the drying device 10 without discharging the vapor to the outside of the drying device 10 of the present invention, A blower, a blower, or the like may be used.

That is, while the first dust filter 20, the second dust filter 30 and the condenser 40 are sequentially passed, the dust is removed and the steam with moisture removed is discharged to the drying apparatus 10 And is used for drying food waste which is crushed and dried in the drying apparatus 10.

The hot air heater 60 is installed in the piping between the circulation apparatus 50 and the drying apparatus 10 described above and heats the steam recirculated to the drying apparatus 10 through the circulation apparatus 50 to be supplied to the drying apparatus 10).

At this time, the hot air heater 60 heats the steam to a temperature enough to melt the object to be heated in the drying apparatus 10 and flows into the drying apparatus 10 in the form of hot air. The object to be heated, This means that the amount of the envelope to be filled into the drying apparatus 10 is such that the melting temperature of the material used in the production of the envelope of the standard type is relatively 5 It will be ~ 10 ℃ higher. (Such as low density polyethylene (LDPE) having a melting point of 105 to 115 DEG C), linear low density polyethylene (LLDPE) having a melting point of 110 to 125 DEG C, high density polyethylene HDPE: high density polyethylene, melting point temperature 130 to 135 ° C).

Of course, a power source for driving the condensing means 40 and the circulation device 50 and the like must be supplied from the power supply device, and the operation or the like such as ON / OFF, the circulation device 50, And the rotation speed of the motor can be controlled through a separate control unit.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: drying device 11: rotating shaft
12: crushing agitating means 13: center crushing blade
14: first support rod 15: first crushing blade
16: side crushing blade 17: second support rod
18: crushing plate 20: primary dust filter
30: secondary dust filter 31: cleaning device
32: control valve 40: condensing means
50: circulation device 60: hot air heater
70: Condensate tank

Claims (7)

A drying device (10) for crushing and drying food waste;
A primary dust filter (20) installed in the drying apparatus (10) for filtering foreign matter of steam generated in the drying apparatus (10);
A secondary dust filter (30) for filtering residual impurities in the unfiltered vapor with the primary dust filter (20);
Condensing means (40) for condensing the steam passing through the secondary dust filter (30) to remove moisture;
And a circulation device (50) for recycling the uncondensed steam to the drying device (10) without discharging the vapor to the atmosphere by the condensing means (40) so as to be used for drying the food waste,
The secondary dust filter 30 is provided with a cleaning device 31 for supplying detergent and water to the inside of the secondary dust filter 30 to remove fine dust and oil contained in the steam generated during drying, ) And the condensing means (40), and the condensing means (40) are prevented from being clogged with dust and oil.
The method according to claim 1,
The drying device (10)
The crushing and stirring means 12 is provided on the outer circumference of the rotating shaft 11 and is divided into a plurality of crushing blades at the outer circumference of the rotating shaft 11, So that the load of the crushing and agitating means (12) can be reduced by 50% or more.
3. The method of claim 2,
The fracture stirring means (12)
A center crushing blade 13 of a helical type protruded and rotated at the center of the rotating shaft 11;
A paddle type side grinding blade 13 for dispersing food waste mixed into both side walls of the drying device 10 by the central grinding blade 13 by being rotated at both sides of the rotating shaft 11 by being separated from the central grinding blade 13, (16);
Wherein the weight of the exhaust gas recirculation-type weight reducing agent is in the range of about 10% to 100%.
The method according to claim 1,
The cleaning device (31)
A control valve (32) is provided to automatically or manually allow detergent and water to be periodically introduced into the secondary dust filter (30).
The method according to claim 1,
A hot air heater (60) is installed between the circulating device (50) and the drying device (10)
Wherein the non-condensed steam is heated to a relatively higher temperature than the melting point of the object to be heated so as to melt the object to be heated in the drying apparatus (10), and is supplied as hot air.
6. The method of claim 5,
Wherein the object to be heated is a volume-based plastic bag made of one of LDPE, LLDPE and HDPE.
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