KR101431517B1 - Apparatus for Reducing Food Wastes - Google Patents

Abstract

The present invention relates to a food waste treatment apparatus, and more particularly, to an apparatus for reducing food waste without discharging food waste effluent containing bad smell, the apparatus including: a hopper having an input opening in the top surface thereof and narrowing downwards; a pulverizing unit coupled to the lower portion of the hopper to communicate therewith and pulverizing food waste input through the hopper; a heating and stirring unit coupled to the lower portion of the pulverizing unit and communicating therewith and including a stirrer and a heater; and a deodorizing unit coupled to the heating and stirring unit and removing steam containing bad smell, whereby the apparatus has merits in that the food waste is reduced by the action of the pulverizing unit, the volume of the waste may be reduced, the food waste is dried by the heating and stirring unit, and bad smell generated during the drying process may be completely removed by the action of the deodorizing unit.

Description

[0001] Apparatus for Reducing Food Wastes [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a food garbage reducing device, and more particularly, to a food garbage reducing device that reduces the volume and weight of food garbage by crushing and drying food garbage, The present invention relates to a food garbage reducing device which is not used.

In order to prevent environmental pollution caused by food waste discharged from homes and restaurants, various treatment methods and treatment methods of food waste have been studied.

As a typical method for treating food waste, there is a method of reducing the weight and volume of the food waste by means of crushing and discharging, incineration, or fermentation. In some cases, food waste processed through fermentation or the like may be recycled as fertilizer or the like.

As a method for reducing the weight and volume of food waste through the fermentation method and the like, it has been proposed in Korean Patent Registration No. 10-0978788. However, unrealistic methods such as the generation of odor in the process of food garbage disposal or the long- There is a problem.

Recently, a method of pulverizing and drying food waste has been widely used. However, this method is also limited in that the treatment for odors is insufficient or the amount of waste water discharged is large, so that it is limited to attracting the food waste. There is a problem that the durability of the device is deteriorated due to breakage of the crushing means by various bone fragments, metal fragments, glass, vinyl, and the like.

Korea Patent Registration No. 10-0978788

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method and apparatus for removing waste water containing smell that is capable of pulverizing various kinds of impurities, The present invention is intended to provide a food garbage reduction device that does not have a food waste.

The present invention provides a food garbage reducing apparatus including a waste hopper, a waste hopper, and a waste hopper, the hopper including: a hopper having an inlet formed on an upper surface thereof and narrowed toward a lower side; A crushing unit connected to a lower portion of the hopper to crush food waste supplied through the hopper; A heating agitating portion communicating with a lower portion of the crushing portion and including a stirring device and a heating device; And a squeeze portion connected to the heating agitating portion to remove water vapor containing odor.

The crushing unit may include a crushing casing having a space therein; A crushing shaft rotatably coupled to both the inner and outer surfaces of the crushing casing; And a plurality of grinding blades having a plurality of cutting blades formed in a radial shape and having a diameter corresponding to an outer diameter of the grinding shaft, the grinding blades being fixed in multiple rows along a longitudinal direction of the grinding shaft.

For example, when a key is protruded from the outer periphery of the crushing shaft, and a key groove is formed in the hollow of the crushing blade for fitting the key. When the angle from the center of the crushing shaft to the key is? And the? Is arranged to be variable along the longitudinal direction of the crushing shaft.

In addition, the plurality of keys are arranged along the longitudinal direction of the crushing shaft, but are not coincident with the &thetas; of the neighboring keys.

As another example, the key is characterized in that it is spiraled along the longitudinal direction of the crushing shaft.

Meanwhile, the heating agitation unit may include a heating and stirring casing having a space formed therein and a pair of curved grooves formed in a 'W' shape on a bottom surface thereof; A pair of agitators respectively disposed in the curved grooves; And a first heater disposed inside the heating and stirring casing for heating and drying the food waste.

In addition, the deodorization unit may include a heating line connected to the heating and stirring casing, for sucking the odor water vapor in the space and transferring it to the second heater; A heat outlet for connecting the second heater to the space so that the odorized steam heated by the second heater is first purified and then recycled to the space; A cooling line connected to the space portion to suck the remaining odor water vapor in the space portion; A cooler for cooling and liquefying the odor water vapor flowing through the cooling line; A purified water tank for storing the liquefied liquid through the cooler and having a bubble generator and a drain; And a circulation fan circulating the air in the space portion to the heating line or the cooling line.

On the other hand, a malodor removing method using a food garbage reducing apparatus in which no waste water containing odor is discharged is characterized in that it includes a stirring step of spreading a food waste having a high moisture content in a wide and narrow space; A drying step of applying heat to the opened food waste and drying the food waste; A first deodorization step of removing odors contained in the offensive odor steam by sucking the offensive odor steam generated through the drying step and then applying heat; A feedback step of re-introducing the water vapor passed through the first deodorization step into the space part; A second deodorization step of sucking the remaining water vapor remaining in the space part and cooling the same; And a purifying step of purifying water generated by the secondary deodorization step.

As described above, according to the present invention, the food garbage reducing device which does not discharge the waste water containing malodor can reduce the volume of the food garbage due to the action of the crushing part, The odor generated in the deodorizer is completely removed due to the action of the deodorizer.

1 is a front view showing a food garbage reducing apparatus according to the present invention;
Fig. 2 is a side view of Fig. 1; Fig.
3 shows a hopper and a crusher according to the present invention.
4 is a view showing one embodiment of a crushing section which is an embodiment of the present invention.
5 is a view showing another embodiment of the crushing section which is an embodiment of the present invention.
6 is a view showing a heating stirrer and a deodorizer according to the present invention.
7 is an operational state diagram of Fig.
8 is a block diagram showing a malodor removing method using a food garbage reducing device in which no waste water containing odor is discharged.

In describing the present invention, terms and words used in the present specification and claims are to be construed in accordance with the principles of the present invention, on the basis that the inventor can properly define the concept of a term in order to best explain his invention It should be construed as meaning and concept consistent with the technical idea of.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view showing a food garbage reducing apparatus according to the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a view showing a hopper and a crushing unit according to the present invention. 5 is a view showing another embodiment of the crushing section which is a constitution of the present invention, and Fig. 6 is a schematic view showing a crushing section according to the present invention, And a deodorization unit. FIG. 7 is an operational state diagram of FIG. 6, and FIG. 8 is a block diagram showing a malodor removing method using a food waste reducing apparatus in which no waste water containing odors is discharged.

First, as shown in FIGS. 1 and 2, the food waste reducing device 1, in which the waste water containing odors is not discharged according to the present invention, is crushed and dried to reduce the volume of the food waste, And includes a hopper 100, a crushing unit 200, a heating agitating unit 300, and a chucking unit 400.

The hopper 100 is configured to be narrowed downward and is configured to transfer food waste to the crushing area of the crushing blade 220 of the crushing unit 200 to be described below.

The upper surface of the hopper 100 is provided with an opening 110 capable of opening and closing so that a user inserts the food waste into the hopper 100 through the inlet 110. Preferably, (Not shown) may be provided so that the operation of the crushing unit 200 is automatically stopped when the loading port 110 is opened, thereby preventing a safety accident and a failure of the apparatus.

The crushing unit 200 includes a crushing casing 201, a crushing shaft 210, a crushing blade 220, and a cutting bar 230. The crushing unit 200 is connected to the hopper 100, .

The crushing casing 201 is provided with a closed space therein and is open at its upper and lower portions and connected to the hopper 100 at its upper portion and to the heating stirring portion 300 at a lower portion thereof.

The crushing shaft 210 is rotatably coupled to both the inner surface and the opposing surface of the crushing casing 201 and a plurality of crushing blades 220 are fixed to the outer circumference of the crushing shaft 210, By the rotation of the shaft 210, the grinding blade 220 pulverizes the food waste.

3, the crushing blade 220 has a hollow and a plurality of cutting blades 222 having a diameter corresponding to the outer diameter of the crushing shaft 210 and is radially formed around the hollow, The crushing blade 220 is fixed in multiple rows along the longitudinal direction of the crushing shaft 210.

Although not shown in the drawing, two types of outer diameter sizes of the crushing blade 220 are provided and fixed in multiple rows along the longitudinal direction of the crushing shaft 210. In this way, a large outer diameter and a small outer diameter are alternately fixed, The crushing efficiency of the crusher may be doubled.

As shown in FIG. 3, the cutting bar 230 has a structure extending from the lower end of the hopper 100 configured to be narrowed downward, and has a slope to be narrowed toward the lower side as in the structure of the hopper 100. A plurality of cutting grooves 232 are formed at an end of the cutting bar 230. The width of each cutting groove 232 is larger than the width of the grinding blade 220, The effect of cutting the garbage as if cutting with scissors occurs.

A key 212 is formed on the outer circumference of the crushing shaft 210 and a key groove 224 corresponding to the key 212 is formed so that the key 212 is inserted into the hollow of the crushing blade 220 So that the coupling force between the crushing shaft 210 and the crushing blade 220 rotating in conjunction with the motor 10 can be enhanced.

In general, although the user is required to take precautions, the food waste may include various kinds of scrap such as bone, bone, glass and vinyl, and the grinding means of the apparatus for treating food waste may be damaged by such scum In the garbage reduction device 1 in which the waste water containing odors is not discharged according to the present invention, the grinding blade 220 is fixed to the grinding shaft 210, And the rotation angle of the crushing blade 220 is not coincident with the rotation angle of the crushing blade 220 so that the cutting blade 222 is irregularly applied to the food wastes, .

An opening / closing unit 500 may be further provided between the hopper 100 and the crushing unit 200 to open the inlet 110 of the hopper 100 to allow food waste to be introduced into the apparatus. The grinding blade 220 or the like can be visually or physically blocked by the opening and closing means 500 so that a safer apparatus can be used.

At this time, the opening / closing unit 500 can be opened and closed by a cylinder (not shown), which is applicable to various conventional techniques, and is equipped with a sensor (not shown) for detecting opening / closing of the inlet 110, (Not shown), and the opening and closing means 500 may be controlled by a control unit (not shown).

The crushing blade 220 is fixed to the crushing shaft 210 so that the crushing blade 220 has a rotation angle different from that of the adjacent crushing blade 220. The crushing blade 220 has a plurality of keyways 224 But the arrangement of the keys 212a formed on the outer periphery of the crushing shaft 210 is arranged not to coincide with the neighboring key 212a.

3 and 4, when the key angle from the center of the crushing shaft 210 of the crushing blade 220 to the key 212a is θ, the next crushing blade 220, The cutting angle of the cutting blade 222 between the crushing blades 220 is irregular so that the key angle of the crushing blade 220 becomes theta-2a so that the food waste and the contaminants contained therein are crushed The a is preferably in the range of 10 ° to 20 °.

The number of the cutting blades 222 formed on the crushing blade 220 may be 6 to 9. For example, the number of the cutting blades 220 may be determined depending on the number of the cutting blades 220. For example, The spacing between the cutting blades 222 is 60 占 and the interval between the cutting blades 222 is 45 占 when the number of the cutting blades 222 is 8. Therefore, The crushing efficiency of the crushing blades 220 is too small to cause the plurality of crushing blades 220 to rotate relative to each other to reduce the crushing efficiency of crushing the crushed materials. Even if a exceeds 20, the adjacent crushing blades 220, and the same disadvantages as described above can occur.

As shown in FIG. 5, the key 212b may be formed as a spiral along the longitudinal direction of the crushing shaft 210. In the case of the embodiment, In fixing the key 212b to the outer periphery of the shaft 210, a plurality of keys 212a may be fixed at different key angles and fixed one by one by welding or the like. However, the operation may be troublesome Since the key 212b is formed by a single mass of the spiral key 212b so that the grinding shaft 210 is easily fixed to the grinding shaft 210 and the key 212b is integrally formed, the grinding blade 220 grinds the food garbage and the impurities The grinding blade 220 is more firmly fixed than the grinding blade 220 that is fixed individually, so that the cutting force is enhanced.

Hereinafter, the heating stirrer 300 and the burner 400 will be described in detail with reference to FIGS. 6 to 7. FIG.

The heating stirrer 300 includes a heating stirring casing 310, a stirrer 320, and a first heater 330.

The heating and stirring casing 310 is provided with a space portion 312 sealed inside and an upper portion of the space portion 312 communicates with the crushing portion 200 so that the food waste crushed through the crushing portion 200 flows do.

6, a pair of curved grooves 340 are formed on the bottom surface of the heating and stirring casing 310, and the curved grooves 340 are formed in a 'W' And one stirrer 320 is disposed in the hopper 340.

The agitator 320 includes a stirring blade 322 and is connected to the outer motor 10 so that the small particle food waste So that the drying efficiency of food wastes with a high water content can be increased.

In accordance with the heating stirrer 300 according to the present invention, the food waste is supplied to the first heater 330 through the first heater 330. In this case, the first heater 330 is disposed in the space 312 in addition to the above- The direct heat of the first heater 330 is directly applied to the first heater 330 and the hot air of the first heater 330 is induced by the bottom surface structure of the 'W' shape so that the food waste is indirectly The drying efficiency of the food waste is maximized and the drying time is shortened accordingly.

The air (water vapor) in the space 312 is reheated by the second heater 412 through the heating line 410 to be described in detail below, The second heater 412 reheats water vapor evaporated in the food waste through the first heater 330 to remove moisture and then flows into the space 312 again Therefore, the moisture content of the air existing in the space portion is reduced, and at the same time, the hot air convection due to the hot air introduced is induced, and the drying efficiency of the food waste can be further improved.

At this time, it is preferable that the first heater 330 is disposed between the pair of the stirrers 320 along at least one longitudinal direction of the stirrer 320.

The burning unit 400 is connected to the heating stirrer 320 to remove water vapor containing odors in the internal space 312 of the heating stirrer 320 and includes a heating line 410, a second heater 412, A heat outlet 420, a cooling line 430, a cooler 432, a purified water tank 440, and a circulation fan 450.

Hereinafter, the operating state of the sorter 400 coupled to the heating stirrer 300 will be described in detail with reference to FIG.

As shown in the figure, the heating line 410 is connected to the space 312 of the heating and stirring casing 310 to suck the odorous water vapor generated by drying the food waste in the heating stirring unit 300, 2 heater 412 in the same manner.

The second heater 412 heats the offensive odor steam, and the steam containing the offensive odor together with the steam is firstly removed. The offensive odor deodorization method by this combustion is excellent in its effect and widely used in various conventional techniques.

The steam that has undergone the first deodorization process by the second heater 412 is re-introduced into the space 312 by the heat outlet 420 connecting the second heater 412 and the space 312, As the process is repeated, the odor water vapor in the space 312 is gradually removed or only a small amount remains.

Then, in order to completely remove the odor water vapor remaining in the space portion 312, the remaining odor water vapor is sucked in the cooling line 430 and transferred to the cooler 432 to be liquefied and converted into moisture, and the changed moisture is supplied to the cooler 432 To the purified water tank 440.

The purified water tank 440 may cause water pollution or soil contamination if it is directly discharged to a space for storing polluted water and gas in which liquified water vapor has been liquefied, 442 may be provided so that the second deodorization process is performed and then discharged through the drain hole 444 provided.

On the other hand, a circulation fan 450 may be installed in each line in order to induce smooth flow of odor water vapor into the heating line 410 and the cooling line 430.

As described above, according to the present invention, the garbage reducing device that does not discharge the waste water containing malodor can reduce the volume of garbage due to the operation of the crushing unit 200, and the odor generated during the drying process So that it can be completely removed due to the action of the burning part 400.

Hereinafter, a malodor removing method using a food garbage reducing device in which no waste water containing odors is discharged according to the present invention will be described with reference to FIG.

As shown in the figure, the method for removing malodor using a food garbage reducing device in which no waste water containing odor is discharged according to the present invention includes steps of stirring (S10), drying (S20), first deodorization (S30) (S40), a secondary deodorization step (S50), and a purifying step (S60).

First, in the stirring step S10, the food waste put into the space portion 312 of the heating stirring portion 300 through the crushing portion 200 is spread widely and thinly by the stirrer 320 having the stirring blades 322 do.

Thereafter, in the drying step S20, the food garbage is directly dried and indirectly dried by the hot air convection by using the first heater 330 to the opened food garbage, (Water vapor) is reheated by the second heater 412 through the following heating line 410 and then circulated to the space 312 through the heat outlet 420. Thus, the second heater 412 reheat water vapor evaporated in the food waste through the first heater 330 to remove water and then introduce the water into the space 312. This reduces the moisture content of the air in the space. And the hot air convection caused by the hot air flowing at the same time is induced, so that the drying efficiency for the food waste is further improved and the drying time is reduced.

In the first deodorization step S30, the dried odor water vapor in the space 312 is sucked through the heating line 410 and transferred to the second heater 412, thereby performing deodorization by combustion.

Thereafter, in the feedback step S40, the deodorized water vapor is introduced into the space 312 again through the first deodorization step S30.

In the second deodorization step S50, the remaining water vapor remaining in the space 312 is sucked through the cooling line 430, transferred to the cooler 432, liquefied, and transferred to the purified water tank 440 as treated water .

In the purifying step (S60), the purified water is discharged through the drain port (444) after purification treatment by the bubble generator (442) provided in the purified water tank (440).

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1: Food waste reduction device 100: Hopper
110: inlet port 200: crushing section
201: crushing casing 210: crushing shaft
220: grinding blade 222: cutting blade
212: key 224: keyway
300: heating stirring section 310: heating stirring casing
312: space part 320: stirrer
330: first heater 400:
410: heating line 412: second heater
420: Heat exhaust port 430: Cooling line
432: cooler 440: water tank
450: circulating fan 500: opening / closing means

Claims (7)

A hopper having an inlet formed on an upper surface thereof and narrowed toward a lower side thereof;
A crushing unit connected to a lower portion of the hopper to crush food waste supplied through the hopper;
A heating agitating portion communicating with a lower portion of the crushing portion and including a stirring device and a heating device;
And a removing unit connected to the heating agitating unit to remove water vapor containing odor,
The crushing section
A crushing casing having a space therein;
A crushing shaft rotatably coupled to both the inner and outer surfaces of the crushing casing;
A plurality of grinding blades having a plurality of cutting blades formed in a radial shape and having a diameter corresponding to an outer diameter of the grinding shaft, the grinding blades being fixed in multiple rows along a longitudinal direction of the grinding shaft;
A pair of cutting bars formed at a lower end of the hopper so as to be narrowed toward the lower side and provided with a plurality of cutting grooves corresponding to the grinding blade;
Wherein the waste water containing odor is not discharged.
delete The method according to claim 1,
A key is protrudingly formed on the outer periphery of the crushing shaft,
Wherein a key groove in which the key is fitted is formed in the hollow of the crushing blade,
When an angle from the center of the crushing shaft to the key is?
Wherein the key is disposed along the longitudinal direction of the crushing shaft, and the θ is variable. The food wastes weight reduction device according to claim 1, wherein the waste water containing odor is not discharged.
The method of claim 3,
The key
A plurality of grinding shafts arranged along the longitudinal direction of the grinding shaft,
And is configured not to coincide with the angle &thgr; of a neighboring key.
The method of claim 3, wherein
The key
Wherein the waste water waste containing odor is discharged through a spiral along the longitudinal direction of the crushing shaft.
The method according to claim 1,
The heating stirrer
A heating and stirring casing in which a space is provided inside and a pair of curved grooves are formed in a 'W' shape on a bottom surface;
A pair of agitators respectively disposed in the curved grooves;
A first heater disposed inside the heating and stirring casing for heating and drying food waste;
Wherein the waste water containing odor is not discharged.
The method according to claim 6,
The deodorizer
A heating line connected to the heating and stirring casing for sucking the odor water vapor in the space portion and delivering it to the second heater;
A heat outlet for connecting the second heater to the space so that the odorized steam heated by the second heater is first purified and then recycled to the space;
A cooling line connected to the space portion to suck the remaining odor water vapor in the space portion;
A cooler for cooling and liquefying the odor water vapor flowing through the cooling line;
A purified water tank for storing the liquefied liquid through the cooler and having a bubble generator and a drain;
A circulation fan circulating air in the space portion to a heating line or a cooling line;
Wherein the waste water containing odor is not discharged.

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