KR20000008142A - Food garbage solidification device - Google Patents

Abstract

PURPOSE: A device is provided to efficiently dispose the wet garbage and the combustible daily waste. CONSTITUTION: A device comprises: a different thing assortment device(10) to assort the different things from the transmitted garbage; a pair of smash rollers(34,34') having their smash blades to be arranged to be crossed with each other; a motor(21); a gear box(32); a smash device(30) to smash the garbage; a drying tub(42) having a thermal medium to heat the particle garbage; a first and a second drying devices; a dice(77) having an extrusion hole to extrude the dried particle garbage; and an extrusion device(70).

Description

Food waste solidification processing device

The present invention relates to an apparatus for treating food waste to be solid fuel.

In general, as a method of treating food waste, an extinction method is known. However, this method has a long processing time and limited throughput.

Another method is to feed or compost food waste. However, in this method, there is a limit to the consumption of food waste and food waste, whether there is corruption, pathogen infection, ambiguous quality standards, feed or compost.

Another way to dispose of food waste is to fuel it and recycle it.

However, there are no known facilities or devices that can fuel food waste.

Until now, it has been disclosed that fuels of combustible household waste have been developed by fueling wastes.

However, the treatment technology disclosed in the prior art is limited to flammable household garbage, and is a processing system that is impossible to treat wet food waste.

The present invention has a main object to provide a processing device that can solidify the food waste.

Another object of the present invention is to allow the food waste treatment apparatus to form an automated system and to obtain various types of products.

The present invention, in order to achieve the above object, there is provided a foreign matter sorting device, crushing device, the first and second drying device, and the cooling and odor control device and the extrusion device for solidification.

1 is an overall configuration diagram of a food waste treatment apparatus according to the present invention;

2 is a side view of a foreign matter selection device according to the present invention;

Figure 3 is a longitudinal cross-sectional view showing a screw feed apparatus according to the present invention,

Figures 4a and 4b is a plan view of the shredding device of the present invention and a partial separated perspective view extracting the main portion thereof,

5a and 5b is a longitudinal sectional view and a planar sectional view of the first and second drying apparatus of the present invention,

6 is a schematic configuration diagram showing a cooling device of the present invention;

Figure 7 is a schematic configuration diagram showing the odor removing device of the present invention,

8A and 8B are a plan view and a sectional view of the main part showing the configuration of an extrusion apparatus according to the present invention;

9A to 9B are front views showing a die according to the present invention;

10 is a plan view showing the configuration of a conventional extrusion apparatus.

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

10: foreign matter selection device 11: storage tank

12: gate 13: conveyor belt

20,20 ': Screw feeder 21: Motor

22: transfer pipe 23: screw

30: shredding device 31: motor

32: gearbox 33: housing

34, 34 ': Shredding roller 34a: Shredding blade

35: gear 40,40 ': primary and secondary drying device

41: motor 42: drying container

43: rotary blade 44: heat medium

50: cooling device 51: cooling water

52: cooling coil 53: precipitated water

56: exhaust fan 60: odor removal device

61: net 62: filter

63: activated carbon 64: filter layer

70: extrusion apparatus 71: motor

73: reduction gear 74: cylinder

75: screw 76: hopper

77: Dice

If the food waste treatment apparatus according to the present invention will be described in more detail based on the attached preferred embodiment as follows.

Figure 1 shows the entire food waste treatment apparatus according to the present invention.

This device allows the collected food waste (hereinafter abbreviated trash) to be stored in the storage tank 11 first. The storage tank 11 has a size capable of storing a considerable amount of food waste and is installed to be included in the foreign matter selection device 10.

FIG. 2 shows a front view of the foreign matter selection device 10 including the storage tank 11, and the storage tank 11 has a gate 12. As shown in FIG.

The gate 12 is to be opened and closed, it is possible to properly adjust the amount of waste flowing out of the storage tank (11). In particular, the gate 12 is configured to be inclined so as to minimize the mechanical load when garbage tries to come out at once.

Garbage coming out through the gate 12 is to be moved out slowly over the conveyor belt 13, the guide 14 is installed on both sides of the conveyor belt 13 to prevent the separation of the waste during sorting.

The screw transfer device 20 is configured to rotate the screw 23 installed in the transfer pipe 22 by the power of the motor 21, as shown in FIG.

The conveying screw 23 of the present invention is very different in structure from the screw 23 'of the known technique as shown in FIG. That is, the screw 23 'of the known art is planar and food waste cannot be moved upward by screw rotation. The reason is that food waste has a high moisture content (70-80%), so food waste cannot be transported smoothly due to stagnation in flat screw, or entanglement of screw blades by water and other foreign matter. In order to compensate for this, the transfer screw 23 of the present invention attaches the flat screw 23 'to the front wing 23b in the advancing direction, so that the front wing 23b in the advancing direction is inclined rapidly. The rear wing 23a is manufactured to have a slanted slope (expanded in Fig. 3) to prevent it from being entangled with the screw blade and to be spread like a spatula to push the food waste upward.

Therefore, the waste introduced into the inlet 24 is transferred upward by the rotation of the screw 23 and falls to the outlet 25.

Shredding device 30 is a device for finely shredding the waste to a particle state, it is shown in detail in Figures 4a and 4b.

Referring to Figure 4a, the crushing device 30 is driven by the power of the motor 31, the power is to be transmitted through the gearbox 32 for deceleration.

That is, the power of the motor 31 is transmitted to the one side shredding roller 34 provided in the housing 33, and the other shredding roller 34 'is rotated by the gear 35.

The shredding rollers 34 and 34 'form a structure in which a plurality of shredding blades 34a are respectively installed on the roller shaft 34c together with the spacing member 34b as shown in FIG. 4B, and the shredding roller 34 34 ', the shredding blades 34a are interlocked with each other to rotate.

Therefore, the waste is crushed into particles by being put into the crushing blades 34a of the crushing rollers 34 and 34 'and finely crushed.

Particle crushed in the crusher 30 is dropped into the first drying device 40, where the first dried is added to the second drying device 40 'and dried.

5A and 5B show the first and second drying apparatuses 40 and 40 '. These devices are configured such that the screw type rotary blade 43 is rotated in the drying barrel 42 by the power of the motor 41, and the heating body 44 is provided on the outer wall of the drying barrel 42.

The heat medium 44 may be supplied with high temperature steam using a steam boiler or may use air coming from the heat medium.

In addition, the heat medium 44 may be dried by using an electric heater or by vacuuming the drying barrel 42 itself, and in some cases, a high frequency heating method using the principle of the microwave oven may be implemented.

Therefore, when a certain amount of particle waste is put into the drying container 42, the rotary blade 43 is rotated and heat of the heat medium 44 is transmitted. Particle waste is dried by receiving heat from the heat medium 44 as it is in close contact with the inner wall by being subjected to centrifugal force by the rotary blade 43.

In addition, the particles are dried to be in close contact with the inner wall by the rotary blades 43, as well as bent up and down to be mixed, so that the drying efficiency is better.

The temperature inside the drying barrel 42 by the heat medium 44 can be adjusted to about 30 to 110 ° C., and the moisture (moisture) of about 60 to 70% is dried in the primary drying device 40. In the second drying furnace 40 ', the remaining moisture is dried to 95 to 97%. At this time, the 100% moisture is not dried to prevent the carbonization of the waste and also to increase the solidification of the solid waste of the particle during extrusion.

Particles moving from the first drying device 40 to the second drying device 40 ′ are partially dried by the wind generated by the rotary vanes 43 and discharged to the outlet 45. will be.

Therefore, the particle trash dried in the second drying device 40 'is discharged to the screw feeder 20' through its outlet 45 'and transferred to the extrusion device 70.

On the other hand, as the particle waste is dried, water vapor (gas) is generated at this time, and the water vapor contains a bad smell.

Therefore, the gas pipe 46 is provided in the 1st, 2nd drying apparatus 40 and 40 ', and this gas pipe 46 is connected to the cooling apparatus 50. As shown in FIG.

As shown in Fig. 6, the cooling device 50 has a structure in which the cooling water 51 flows to the outer wall, and a cooling coil 52 is provided inside.

Therefore, the hot gas introduced from the drying apparatus 40, 40 ′ through the inlet 54 is cooled by the cooling water 51 and the cooling coil 52 to generate the precipitated water 53. At this time, because the sedimentation water 53 is pure water by steam, it does not cause water pollution when discharged.

As described above, the gas from which the sedimented water 53 is separated is exhausted from the protrusion 57 by the exhaust fan 56 which is operated by the motor 56a power, and flows into the odor removing device 60.

7 shows the malodor removing apparatus 60, which is a three-stage drawer type. This apparatus has a structure in which a mesh 61 and a filter layer 64 in a state where the filter 62 and the activated carbon 63 are stacked in this order are provided in three stages.

The filter layer 64 is installed in each of the drawer type, it is possible to replace the activated carbon 63 is easy.

Thus, fine dust is filtered out by the filter 62 and odor is adsorbed and neutralized in the activated carbon 63. Since the components and functions of the coal briquettes 6 are already known, detailed descriptions are omitted. In addition, the gas introduced into the inlet 65 and exhausted to the exhaust port 66 has no odor and no dust, resulting in air pollution. You will not.

8A and 8B show an extrusion apparatus 70 for solidifying dry particle waste conveyed by a screw feeder 20 '.

Extruder 70 is the power of the motor 71 is transmitted to the reduction gear 73 by a power transmission means such as belt 72, pulley 72 ', the reduced power is a screw installed inside the housing 74 The 75 is rotated.

In addition, as shown in FIG. 1, the hopper 76 is installed in the middle of the cylinder 74, so that the dry particle waste transported by the screw feeder 20 ′ is introduced into the hopper 76 and the hopper 76 is disposed. The dry particle waste is introduced into the cylinder 74 to be extruded by the screw 75.

Here, the screw 75 is different in form from the known screw 75a, and is one of the core parts of the present invention. That is, the screw 75a of the known technique serves to supply a certain amount of material (typically a thermoplastic resin) in the screw first step (a), and the second step (b) melts the material. And compression to melt the material by compression, and in the final step (c), it has a structure to play a weighing role to constantly push the molten material into a die, and there is a vent device (d) between the second and third. The gas generated when the material is compressed must be removed to act as a smooth screw. In the present invention, since the material is not a thermoplastic resin but a dry particle waste, it is not possible to obtain the solid waste required by the present invention in the form of a screw 75a of a known technique and a role of supplying, compressing, and metering. That is, the extruder of the known technique uses the property of melting by heat, but the dry particle trash must be forced to solidify by high pressure compression, so there should be no belt (la) structure. The known technique requires that the ratio of the length of the screw 75a and the diameter of the screw 75b is maintained to be 22 or more, and the diameter of the first screw (a) is small and the diameter of the screw (75b) is final. It has a feature that there is little difference between the form of enlargement and the screw 75 and the screw diameter 75b of the present invention. As already mentioned, since the material is a dry particle trash, the screw 75 is four to five times thicker than the screw 75a of the known art and is very different in shape. In addition, because of the properties of the material, the length of the screw 75a is another feature that is 1/3 or more shorter than the screw 75a of the known art.

The material may ride over between the screw 75a and the cylinder 74a of the known art, but the dry particle trash should be designed so that there is little gap since the material cannot ride over between the screw 75 and the cylinder 74. do.

And the screw 75a of the known technique has a lubricating role in the characteristics of the material, but there is an angle, but the screw 75 for dry particle waste is "R" type before and after the food waste supply at all (75c) with no lubricating component. Since only the compression process is continuous as the die 77 moves in the direction of the die 77, the key to the smooth movement to the die 77 is the screw 75 groove 75D “R” type. The function of the grooves 75D of the "R" type of the screw 75 is that the "R" type grooves 75D act as lubrication when the dry particle waste pressure is generated in the continuous direction of the screw 75, and the dry particle waste While repeating the kneading (inverted mixing) to smoothly proceed in the direction of the die (77).

In addition, since the dry particle waste has almost no viscosity, the shape of the end of the screw 75 and the end 75E should be different from the tip of the screw 75a of the known technique.

Since the end 75e of the screw 75a of the known art is made of a thermoplastic resin, the physical properties of the material change when the space between the die 77a and the screw 75a is wide. However, the dry particle trash does not change in physical properties but a very high pressure is generated between the screw 75 and the die 77 so that the dry particle trash is discharged into the holes 77a, 77b, 77c of the die 77. The tip 75E must be semi-circular, not conical, such as tip 77e of the known art.

On the other hand, the cylinder 74 is attached to the die (DIE'S, 77) is provided, the die 77 is configured in various forms as shown in Figs. 9a to 9c, optionally, the cylinder 74 Will be installed and used.

That is, the dies 77 are formed such that a plurality of dies 77 having a large diameter in the center as shown in Fig. 9A or a plurality of dies having a small diameter as shown in Fig. 9B are arranged in a row. And a die 77 formed in such a way that a small diameter extrusion hole 77c is arranged in a circular shape, as shown in FIG. 9C.

Therefore, as the dry particle waste is compressed through the extrusion hole of the die 77, the solidified waste can be obtained. The solid waste having various diameters and shapes according to the extrusion hole shape and the hole diameter of the die 77 is obtained. You get

The type of solid waste can be round bar type or wood type, and the length is 50 ~ 300mm for solid softening, 5 ~ 10mm for solid feed, and about 5-15mm for solid composting. The length of is good.

In addition, the diameter is preferably about 5 to 50 mm in the case of solid softening, and about 5 to 10 mm is preferable in the case of solid feed and composting.

According to the above description, since the present invention can be treated with the recycled food waste solidified by the present invention has a more efficient food waste treatment.

In particular, the present invention has a solid fuel which can be used as a fuel, and at the same time has the effect of obtaining a solid compost and feed.

Claims (3)

It has a foreign matter sorting device which allows a certain amount of food waste to be supplied from a storage tank having a gate and is capable of sorting foreign matters from the food waste conveyed by a conveyor belt, and a shredding blade for shredding food waste, and the shredding blades are arranged to be offset from each other. It is equipped with a pair of crushing roller, a motor and a gear box to give a reduced power to the crushing roller, and a gear installed on the roller shaft so that the crushing roller is rotatable in the opposite direction to the food waste to A first drying device and a second drying device having a drying device having a shredding device to be crushed, a heating medium having a heating medium for heating the particle waste, and a rotary blade which is rotated by a motor power inside the drying container and stirs the particle waste; A hopper to which the dried particle waste is directly installed is installed in the middle of the housing. Food waste solidification processing apparatus, characterized in that configured by a solidified waste provided with a die having an extruding hole is extruded out the dried particles are added to the waste to the extrusion device gong to be extruded so as to have a predetermined size and shape. The method of claim 1, The gas generated in the first and the second drying device is cooled by a cooling device having a cooling water and a cooling coil to separate precipitated water, and the cooled gas has a multistage filter layer having a mesh, a filter, and activated carbon. Food waste solidification processing device, characterized in that the odor and dust is processed to pass through the odor removal device configured. The method of claim 1, Food waste, characterized in that by the screw transfer device having a screw that is rotated inside the conveying pipe by the motor power to the waste transport in the debris selection device and the second drying device from the second drying device to the extrusion device. Solidification processing unit.