KR101407496B1 - Apparatus for producing refuse derived fuel - Google Patents

Abstract

The present invention can continuously carry out a plurality of processes for processing waste into solid fuel in a single apparatus and also can appropriately and automatically control the amount of waste to be supplied to maximize production efficiency while preventing oversizing of the apparatus Disclosed is a waste solid fuel producing apparatus. According to the present invention, there is provided an apparatus for producing waste from solid fuel in the form of pellets, comprising: a material conveying unit connected to the first driving unit to convey waste from the outside; A material compression unit for compressing the waste conveyed through the material conveyance unit; And a material heating / molding unit connected to the second driving unit for transmitting external rotational force to the material compressing unit and a material heating / molding unit for applying heat to the waste conveyed in a compressed state by the material compressing unit, do.

Description

[0001] Apparatus for producing refuse derived fuel [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste solid fuel producing apparatus, and more particularly, to a waste solid fuel producing apparatus capable of maximizing the operation efficiency by sequentially performing processes such as supply, compression, heating and molding of a material.

Among the wastes discharged in large quantities, food wastes discharged from households and restaurants are high in moisture content and easy to decay, causing environmental pollution problems such as odor and polluted water generation. Such food waste is incinerated or landfilled, which is difficult to treat due to site problems and excessive incineration facility operation costs.

In addition, waste synthetic resin is classified into incineration and landfill, but a large amount of air pollutant is generated during incineration, and landfilling has various problems such as soil contamination and waste of resources.

In this situation, various researches and developments have been made to produce alternative energy using waste synthetic resin composed of various combustible waste and high-calorie organic materials emitted from homes and businesses.

One way to recycle waste is to process it with pellet-type solid fuel, which is produced by screening, crushing, drying, compacting, molding and cutting the waste.

That is, after removing the incombustible waste (that is, iron, non-ferrous metal, stone, etc.) contained in the waste and disintegrating the remaining waste to a predetermined size using a crusher, the crushed waste is put into a pellet molding machine, Followed by molding into pellets. Thereafter, the pellet-type solid fuel is obtained in a predetermined size by cutting the pellet.
Such an apparatus for producing a solid fuel using waste is disclosed in Japanese Patent Application Laid-Open Nos. 10-2011-0090464, 10-1140562 and 10-0415769.

It is an object of the present invention to provide a waste solid fuel producing apparatus in which a plurality of processes for processing wastes into solid fuel can be continuously carried out in a single apparatus.

Another object of the present invention is to provide a waste solid fuel producing apparatus capable of maximizing production efficiency while preventing the overloading of the apparatus by appropriately and automatically controlling the amount of waste to be injected.

According to an aspect of the present invention, there is provided an apparatus for producing waste from a pellet type solid fuel, the apparatus comprising: a material conveying unit connected to a first driving unit to convey waste supplied from the outside; A material compression unit for compressing the waste conveyed through the material conveyance unit; And a material heating / molding unit connected to the second driving unit for transmitting external rotational force to the material compressing unit and a material heating / molding unit for applying heat to the waste conveyed in a compressed state by the material compressing unit, do.

Here, the material conveying portion includes a housing disposed below the material storage portion and disposed therein, a housing disposed in the housing, a shaft having both ends rotatably mounted on the housing, and a conveying screw including a spiral portion formed on an outer peripheral surface of the shaft. In this structure, the conveying screw is rotated by the first driving unit to transfer the waste to the material compressing unit.

On the other hand, the material compressing portion is disposed at the lower portion of the housing of the material conveying portion and accommodates the waste conveyed through the material conveying portion, and has a front end opened; And a second end rotatably mounted on the housing and a second end rotatably mounted on a shaft and a shaft formed on an outer circumferential surface of the shaft, And a compression screw having a spiral portion.

Particularly, the material compression unit may further include waste amount detecting means mounted on an inner surface of the upper portion of the housing to transmit a signal regarding the amount of waste in the housing to the control unit. According to the amount of waste in the housing, The driving of the second driving unit is controlled.

The power transmitting portion in the present invention includes a coupling connected to the shaft of the second driving portion and a shaft of the compression screw of the material compression portion and a shaft of the reduction gear and a coupling of the compression screw of the material compression portion, One end of the compression screw coupled to the reducer is displaced with respect to the shaft of the reducer so that the compression screw can maintain a straight shape.

Here, the end of the shaft of the compression screw connected to the coupling is formed as a hemispherical concave or convex portion, and the end of the shaft of the corresponding reducer may be formed as a hemispherical convex or concave portion.

On the other hand, the material heating / molding section is formed with a plurality of through holes, and the molding plate corresponding to the compression screw of the material compression section; A heating means mounting plate disposed outside the forming plate and fixedly mounted at an open end of the housing of the material pressing section; And heating means mounted on the forming plate and the heating means mounting plate for heating the forming plate and the heating means mounting plate.

At this time, at least one heating means mounting passage orthogonal to the through hole of the forming plate is formed in the molding plate and the heating means mounting plate, and both ends of the heating means mounting passage are exposed to the outside, As shown in Fig. The heating means mounting passage is disposed between the heat and the heat of the through hole of the forming plate so that the compressed waste can be discharged to the outside through the through hole of the forming plate without being disturbed.

On the other hand, the material compressing portion is disposed at the lower portion of the housing of the material conveying portion and accommodates the waste conveyed through the material conveying portion, and has a front end opened; And a second end rotatably mounted on the housing and a second end rotatably mounted on a shaft and a shaft formed on an outer circumferential surface of the shaft, And may include at least a plurality of compression screws having spiral portions.

At this time, the material heating / molding portion includes a plurality of integrated molding plates, each of which has a plurality of through holes and corresponding to compression screws of the material compression portion, respectively; A heating means mounting plate disposed outside the forming plate and fixedly mounted at an open end of the housing of the material pressing section; And heating means mounted on the forming plate and the heating means mounting plate for heating the forming plate and the heating means mounting plate. In particular, the power transmission portion includes a gear reducer coupled to the shaft of the second drive portion, a gear assembly coupled to the shaft of the reducer, and a plurality of couplings connected to the shafts of the respective compression screws, 2 drive unit.

Preferably, each compression screw of the material compression section has a spiral section formed in a direction opposite to the spiral section of the adjacent compression screw.

As with a single forming plate, a plurality of forming plates and heating means mounting plates are provided therein with at least one heating means mounting passage orthogonal to the through holes of the forming plate, and the heating means mounting passage is exposed to the outside The heating means is inserted into the heating means mounting passage and the heating means mounting passage is disposed between the heat and the heat of the through hole of the forming plate so that the compressed waste is discharged to the outside through the through hole of the molding plate without being disturbed.

The apparatus for manufacturing a solid fuel of waste according to the present invention having the above structure can continuously perform a plurality of processes for processing waste into a solid fuel and can appropriately and automatically adjust the amount of waste to be charged, Thereby maximizing the production efficiency.

FIGS. 1 to 3 are a side view, a plan view, and a front view, respectively, showing an overall configuration of a waste solid fuel production apparatus according to an embodiment of the present invention.
4 is a front view of the feed screw shown in Fig.
Figure 5 is a front view of the compression screw shown in Figure 1;
Figure 6a is a front view of the heating / forming section shown in Figure 1;
FIG. 6B is a cross-sectional view taken along line AA in FIG. 6A. FIG.
Figure 7 is a side view of the coupling shown in Figure 1;
Fig. 8 is a corresponding view of Fig. 3, showing a front view of a waste solid fuel producing apparatus according to another embodiment of the present invention. Fig.
Fig. 9A is a front view of the heating / molding section shown in Fig. 8
FIG. 9B is a cross-sectional view taken along line BB in FIG. 9A. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for producing solid waste fuel according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 1 to 3 are a side view, a plan view, and a front view showing an overall structure of a solid waste fuel producing apparatus according to an embodiment of the present invention.

A waste solid fuel manufacturing apparatus according to an embodiment of the present invention includes a material storage unit 100, a material transfer unit 200, a material compression unit 300, and a material heating / molding unit 400. Each of these parts can be disposed on the base 1.

Hereinafter, the structure and function of each part will be described separately.

In the material storage unit 100,

The material storage unit 100 includes a hopper 110 disposed on the base. The hopper 110 is a member having a predetermined volume in which an inlet 111 is formed at the upper end and an outlet (not shown in the figure) is formed at the lower end. The waste is crushed into a predetermined size in a state in which the non- .

A material transfer unit 200 is disposed at the lower end of the hopper 110 so that the waste discharged from the hopper 110 is introduced into the material transfer unit 200.

material Transfer part (200)

The material storage unit 100 or the material transfer unit 200 disposed at the lower end of the hopper 110 includes a housing 210, a conveyance screw 220 rotatably mounted in the housing 210, and a conveyance screw 220 And a first driving part 10 for rotating the first driving part.

The housing 210 includes a first housing 211 connected to the hopper 110 of the material storage unit 100 and a second housing 212 connected to the first housing 211. The first housing 211 and the second housing 211 A single closed space is formed inside the second housing 212.

The wastes discharged from the hopper 110 of the material storage unit 100 are introduced into the inner space of the first housing 211, , And is transferred to the inner space of the second housing 212 through the transfer screw 220.

4 is a front view of the conveyance screw 220 constituting the material conveyance unit 200. The conveyance screw 220 formed of the shaft 221 and the spiral portion 222 formed on the outer peripheral surface of the shaft 221 is inserted into the first housing 211 and the second housing 212 in the longitudinal direction and both end portions thereof are rotatably mounted on the side wall of the first housing 211 and the side wall of the second housing 212. [

One end of the shaft of the conveyance screw 220 extending to the outside of the second housing 212 is connected to the first drive unit 10 and the second drive unit 10 is connected to the second housing 212, As shown in Fig. Accordingly, the conveying screw 220 can be rotated in the inner space of the first housing 211 and the second housing 212 by the first driving unit 10.

material Compression section (300)

The material compression section 300 is disposed at the lower portion of the material transfer section 200, particularly at the lower portion of the second housing 212. The material compression unit 300 includes a housing 320 located at a lower portion of the second housing 212 of the material transfer unit 200 and a compression screw 310 rotatably mounted inside the housing 320.

An opening is formed at the upper end of the housing 320 of the material compressing section 300 and the opening communicates with an opening formed at the lower end of the second housing 212 of the material conveyance section 200. Therefore, the waste discharged from the second housing 212 of the material transfer unit 200 is introduced into the housing 320 of the material compression unit 300. On the other hand, one end (the right end in Fig. 1) of the housing 320 is open.

5 is a front view of the compression screw 310 constituting the material compression unit 300. The compression screw 310 is a compression screw having a shaft 311 and a spiral portion 312 formed on the outer peripheral surface of the shaft 311 310 are arranged in the longitudinal direction in the inner space of the housing 320. One end is connected to a driving shaft of a second driving part 20 to be described later, and the second end is located in a free end state.

Material heating / Molding section (400)

The material heating / molding part 400 is disposed at the tip of the material compressing part 300, that is, at the front end of the housing 320, and compresses the compressed waste discharged from the material compressing part 300 Is heated and molded into pellets.

6A is a cross-sectional view taken along the line AA in FIG. 6A. The material heating / molding unit 400 includes a molding plate 410 having a predetermined thickness, A heating means mounting plate 420 disposed on the outside of the forming plate 410, and heating means mounted on the heating means mounting plate 420.

The heating means mounting plate 420 is fixedly mounted at the open end of the housing 320 of the material compression section 300. The forming plate 410 corresponds to the inner space of the housing 320 of the material compressing unit 300 and has a plurality of through holes 411 formed therein. Therefore, the waste discharged from the material compressing unit 300 is discharged to the outside through the forming plate 410. The pellets having the same sectional shape (diameter) as the cross-sectional shape of the through-hole 411 of the forming plate 410, Shape.

On the other hand, the forming plate 410 and the heating means mounting plate 420 can be formed integrally and made of a metal material having excellent strength and thermal conductivity. Inside the forming plate 410 and the heating means mounting plate 420 are a plurality of heating means mounting passages 430 transversely crossing, that is perpendicular to the through holes 411 of the forming plate 410 Shown in Fig.

 A plurality of heating means mounting passages 430 are exposed at both ends to the outside and disposed between the rows and the columns of the through holes 411 of the forming plate 410. Therefore, even if the heating means (for example, not shown as a heater) is mounted in each heating means mounting passage 430, the compressed waste is discharged to the outside through the through holes 411 of the forming plate 410 Can be discharged.

The heat generated in the heater by the power supply is transmitted to the forming plate 410 to be supplied to the forming plate 410 (not shown) ) Can be raised to a set value. In particular, by arranging the heating means mounting passage 430 as above, the heat generated in the heating means can be uniformly transferred to the solid waste fuel passing through all of the through holes 411.

power [0030] (500)

The apparatus for manufacturing solid waste fuel according to an embodiment of the present invention includes a power transmission unit 500 for transmitting the driving force (rotational force) of the second driving unit 20 to each compression screw 310 of the material compression unit 300, As shown in FIG.

The power transmitting portion 500 includes a speed reducer 510 connected to the driving shaft of the second driving portion 20 and a coupling 520 connected to the shaft of the speed reducer 510. The coupling 520 is connected to the shaft 311 of the compression screw 310 of the material compression unit 300.

The decelerator 510 of the power transmission unit 500 may decelerate the driving force of the second driving unit 20 to transmit the decelerated driving force to the compression screw 310 of the material compression unit 300. Accordingly, the operator can determine the operation speed of the reduction gear in consideration of the conditions of the input waste and the moisture content of the waste, thereby adjusting the rotation speed of the compression screw, that is, the compression and the transport speed of the waste.

The functions of the apparatus for producing solid waste fuel according to the present invention will be described in detail with reference to the drawings.

When the waste is introduced into the hopper 110 of the material storage unit 100, the waste is introduced into the first housing of the material transfer unit 200 through the discharge port formed at the lower end of the material storage unit 100. In this state, when the first driving part 10 connected to the material conveying part 200 is actuated, that is, when the conveying screw 220 rotates, the waste in the first housing is conveyed to the second housing 212, (300). ≪ / RTI >

At the same time, the rotational force of the second driving unit 20 is transmitted to the compression chamber 310 of the material compression unit 300 from the material storage unit 100 through the reduction gear and the coupling, The waste introduced into the housing 320 is transferred to the heating / molding unit 400 mounted at the opening end of the housing 320.

As a result, the waste is discharged to the outside through a plurality of through holes 411 formed in the molding plate 410 constituting the heating / molding unit 400, and the waste discharged in this process is discharged through the cross section of the through hole 411 And has a pellet shape depending on the shape (e.g., circular shape).

As described above, compared to the amount of waste transferred through the compression screw 310 due to the plurality of through holes 411 formed in the forming plate 410, the amount of waste transferred through the plurality of through holes 411 to the outside The waste present between the tip of the compression screw 310 and the forming plate 410 is compressed by the waste being continuously conveyed by the compression screw 310.

As a result, the waste discharged to the outside through the plurality of through holes 411 formed in the forming plate 410 has a compressed pellet shape.

In addition, as described above, since the heaters are mounted in the plurality of heating means mounting passages 430 formed in the forming plate 410 and the heating means mounting plate 420, The temperature of the mold 410 rises and is discharged to the outside through the plurality of through holes 411 formed in the forming plate 410. Heat is transferred to the waste and is heated to a predetermined temperature.

Under these conditions, the solid fuel having a pellet shape and being compressed and heated through the plurality of through holes 411 formed in the forming plate 410 is discharged to the outside.

The following describes additional structures and functions of the apparatus for manufacturing solid waste fuel according to an embodiment of the present invention having the structure and function as described above.

compression On the screw  Configuration corresponding to applied axial force

The shaft 311 of the compression screw 310 constituting the material compression section 300 is connected at one end to the coupling 520 and at the other end to the forming plate of the heating / 410). In this configuration, each free end of the compression screw 310 rotating in the compressed waste is simultaneously subjected to a radial force and a rotational force due to the resistance, and therefore, the free end is deflected (or lifted) The compression screw 310 is deformed (i. E., Bent, not straight).

For this reason, smooth and accurate rotation of the compression screw 310 is difficult and uniform movement of the waste is not achieved.

In order to prevent such a problem, the end of the shaft 311 of the compression screw 310 connected to the coupling 520 is formed as a hemispherical convex portion (or concave portion), and the end of the shaft of the corresponding reducer 510 is connected to a hemispherical concave portion Or convex portion).

7 is a side view of the coupling, in which the shaft 311 of the compression screw 310 and the shaft 511 of the reducer 510 are shown together with the rotation axis.

The end of the shaft 311 of the compression screw 310 connected to the coupling 520 is formed as a hemispherical recess 311-1 and the end of the shaft 511 of the reducer 510 corresponding thereto is When the radial force acts on the free end portion of the compression screw 310, the opposite end can be rotated at a predetermined angle with respect to the shaft 511 of the reducer 510 have.

Therefore, the compression screw 310 can always maintain a straight line state and can be rotated accurately by the second driving portion 20. [

Needless to say, coupling of various structures can be used to perform the above function.

Configuration to prevent excessive input of waste

The waste solid fuel producing apparatus according to an embodiment of the present invention is mounted on the inner surface of the upper portion of the housing 320 of the material compressing unit 300 and is electrically connected to the first driving unit 10 through a control unit And a waste amount detecting means S (level sensor).

As described above, the amount of the waste discharged to the outside through the plurality of through holes 411 formed in the forming plate 410 of the heating / molding unit 400 is larger than the amount of the waste conveyed by the compression screw 310 Very few. The waste conveyed from the material conveyance section 200 can be excessively accommodated in the housing 320 of the material compression section 300 and can even flow back to the housing 210 of the material conveyance section 200. [

In order to prevent the occurrence of such a problem, a level sensor S, which is a waste amount sensing means, is mounted on the upper end of the housing 320 of the material compression unit 300 and the sensing sensor S is mounted on the upper surface of the housing 320 of the first driving unit 10 A control unit (not shown) for controlling driving is electrically connected.

When the waste in the housing 320 of the material compression unit 300 reaches a predetermined height, the level sensor S senses the sensed temperature and transmits the sensed signal to the control unit. The control unit controls the operation of the first driving unit 10 The waste in the housing 210 of the material conveying unit 200 is not excessively injected into the housing 320 of the material compressing unit 300 by stopping the operation of the conveying screw 220 of the material conveying unit 200 by stopping the operation of the conveying unit.

Configuration for moisture release

Waste contains moisture, and water must be removed in the process of producing solid fuels using such wastes.

The waste present between the tip of the compression screw 310 and the forming plate 410 of the heating / molding part 400 in the housing 320 of the material compression part 300 is compressed by the compression screw 310, And the water contained in the waste is separated from the waste in the compression process.

As shown in FIG. 1, a discharge member 321 is connected to the housing 320 of the material compression unit 300, and the moisture extracted from the waste is discharged to the outside through the discharge member 321. Thus, as the dehydrated dried waste passes through the forming plate 410 of the material heating / forming part 400, i.e., the through hole 411, the waste is converted into solid fuel quickly and with less heat .

6 shows a structure in which the heating / molding unit 400 includes a single molding plate 410, but the number is not limited. That is, the number of forming plates 410 is determined according to the capacity of the apparatus, that is, the capacity for producing solid waste, so that the forming plate can be made of two or more forming plates.

Configuration for Preventing Wear of Molded Plates

On the other hand, among the forming plates 410 of the heating / molding part 400, the surface of the material compressing part 300 corresponding to the housing 320 is a surface which comes into contact with the transferred waste for the first time. Accordingly, the surface of the material compressing portion 300 corresponding to the housing 320, due to the contact with the waste of a predetermined pressure, is advanced at a higher rate than the other portions.

In order to compensate for this, in the present invention, a protective member 410b, which is a separate member, is provided on the surface of the forming plate 410 of the heating / molding unit 400 corresponding to the housing 320 of the material compressing unit 300 Respectively.

6A and 6B, a concave portion 410a having a predetermined depth is formed on the front surface of the forming plate 410 (that is, the portion corresponding to the housing 320 of the material compressing portion 300) And the protection member 410b is detachably mounted in the recess 410a (reference numeral "B" denotes a fastening bolt). The protection member 410b is provided with a through hole 411 The through holes corresponding to the through holes should be formed.

In this structure, the waste conveyed in the housing 320 of the material compressing unit 300 is discharged to the outside through the through hole 411 formed in the forming plate 410 after contacting the protecting member 410b , So that the wear amount of the through hole 411 of the forming plate 410 is remarkably reduced.

If the protective member 410b, particularly the area around the through hole, is severely worn, the protective member 410b is detached from the forming plate 410, and then a new protective member is mounted. By mounting this detachable protective member, the forming plate 410 can be used over a long period of time.

Fig. 8 is a front view of the waste solid fuel producing apparatus according to another embodiment of the present invention, Fig. 9A is a front view of the heating / molding unit shown in Fig. 8, Fig. Sectional view taken along the line.

The heating / molding section 400-1 in the apparatus according to the present embodiment is composed of two molding plates 410-1 and 410-2.

The heating / molding unit 400-1 of the waste solid fuel producing apparatus according to the present embodiment includes first and second forming plates 410-1 and 410-2 having predetermined thicknesses and first and second forming plates 410 -1, and 410-2, respectively.

The heating means mounting plate 420-1 is fixedly mounted at the open end of the housing 330 of the material compression unit 300 shown in Figs. The first and second forming plates 410-1 and 410-2 correspond to the inner space of the housing 330 of the material compressing section 300 and have a plurality of through holes 411-1 and 411-2, Respectively. Accordingly, the waste discharged from the material compressing unit 300 is discharged to the outside through the first and second forming plates 410-1 and 410-2, and the first and second forming plates 410-1 and 410 2 having the same cross-sectional shape (diameter) as the cross-sectional shapes of the through-holes 411-1 and 411-2.

On the other hand, the first and second forming plates 410-1 and 410-2 and the heating means mounting plate 420-1 can be formed integrally and made of a metal material having excellent strength and abrasion resistance. Inside each of the first and second forming plates 410-1 and 410-2 and the heating means mounting plate 420-1, the first and second forming plates 410-1 and 410-2 A plurality of heating means mounting passages 430-1 (shown by dotted lines in Fig. 9A) perpendicular to the through holes 411-1 and 411-2 formed in the heat insulating member 411-1 are formed.

The function of the heating / molding part 400-1 having such a structure is substantially the same as the function of the heating / molding part 400 of the embodiment shown in Figs. 1 to 3 except that it produces a large amount of waste solid fuel Do.

Here, in comparison with the solid waste fuel discharged through the heating / molding unit 400-1 of the previous embodiment, in this embodiment, the first and second molding plates 410-1 And waste material solid fuel is discharged through the first and second molding plates 410-1 and 410-2 of the heating / molding unit 400-1, And 410-2.

To this end, the material compression section in this embodiment is provided with two compression screws corresponding to the first and second molding plates 410-1 and 410-2 of the heating / molding section 400-1, respectively, Wherein the two compression screws constituting the material compression portion are arranged parallel to each other.

It is preferable that the spiral portion formed on the outer circumferential surface of the shaft of the first compression screw and the spiral portion formed on the outer circumferential surface of the shaft of the second compression screw are configured to be opposite to each other. For example, the spiral portion of the first compression screw of the material compression portion may be constituted by the left spiral portion, and the spiral portion formed on the outer peripheral surface of the shaft of the second compression screw may be formed by the right spiral portion.

Under these conditions, the waste forced to move by the rotating first and second compression screws is discharged to the first and second forming plates (FIGS. 8 and 9A) in a state of being uniformly dispersed in the housing of the material compression section, And are uniformly moved toward and discharged from the nozzles 410-1 and 410-2.

Herein, the person skilled in the art can easily understand the detailed construction of the material compression unit including the two compression screws as described above through the construction shown in FIGS. 1 to 3 and the above description, The configuration is not shown in the drawings.

On the other hand, a common gear box (gear assembly) can be used to connect the shafts of the first and second compression screws to a single drive shaft (shaft of the reducer).

That is, the gear assembly includes a main gear coupled to the shaft of the speed reducer and an auxiliary gear engaged with the main gear. The rotation axis of the main gear of the gear assembly is connected to the first compression screw or shaft of the material compression section through the first coupling and the rotation axis of the auxiliary gear is connected to the second compression screw of the material compression section through the second coupling, do.

The first compression screw and the second compression screw of the material compression unit are rotated in opposite directions by the rotational force of the first drive unit 10 due to the gear assembly.

Here, the configuration of the gear assembly and the relationship between the first and second couplings are general matters in the related art relating to the power transmitting means, and the detailed description thereof will be omitted, The configuration is not shown in the drawings.

9A and 9B, the front surface of the first and second molding plates 410-1 and 410-2 (i.e., the portion corresponding to the housing of the material compression portion) And a protective member 410-1b is detachably mounted in the recess 410-1a. It is needless to say that the through hole 411-1 formed in the forming plate 410-1 and the through hole corresponding to the through hole 411-1 should be formed in the protective member 410-1b.

The functions and effects of the protective member 410-1b are the same as those of the protective member 410b described with reference to FIGS. 6A and 6B, and a description thereof will be omitted.

The remaining configuration except for the configuration of the heating / molding unit and the material compressing unit is the same as the corresponding configuration of the embodiment shown in Figs. 1 to 7, and a duplicate description thereof will be omitted.

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. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (14)

An apparatus for producing waste from solid fuel in the form of pellets,
A material transferring unit connected to the first driving unit for transferring waste from the outside;
A material compression unit for compressing the waste conveyed through the material conveyance unit;
A power transmitting portion connected to the second driving portion and transmitting rotational force to the material compressing portion,
A material heating / molding unit for applying heat to the waste transferred in a compressed state by the material compression unit and forming the waste into pellets to solidify the waste material,
The material compressing portion includes a housing disposed at a lower portion of the material conveying portion and accommodating the waste conveyed through the material conveying portion, the leading end portion of the housing being opened; And a second end rotatably mounted on the housing and a second end rotatably mounted on a shaft and a shaft formed on an outer circumferential surface of the shaft, And a compression screw having a spiral portion,
The power transmitting portion includes a coupling connected to the shaft of the second driving portion and a shaft of the reduction gear and a shaft of the compression screw of the material compression portion connected to the shaft of the second driving portion so that when the radial force acts on the free end of the compression screw, Wherein one end of the screw is displaced with respect to the shaft of the speed reducer to maintain the compression screw in a linear shape. 2. The apparatus according to claim 1,
A housing disposed under the material storage unit and into which waste is injected; And
A transfer screw disposed within the housing, the transfer screw including a shaft rotatably mounted to the housing at both ends thereof and a spiral portion formed at an outer circumferential surface of the shaft,
And the conveying screw is rotated by the first driving unit to transfer the waste to the material compressing unit. delete The apparatus of claim 1, wherein the material compression unit further includes waste amount detecting means mounted on the inner surface of the housing for transmitting a signal about the amount of waste in the housing to the control unit, And controls the driving of the second driving unit according to the control signal. delete The apparatus as claimed in claim 1, wherein the end of the shaft of the compression screw connected to the coupling is formed of a hemispherical concave or convex portion, and the end of the shaft of the corresponding reducer is formed of a hemispherical convex or concave portion. The method of claim 1, wherein the material heating /
A forming plate in which a plurality of through-holes are formed, the forming plate corresponding to the compression screw of the material compression section;
A heating means mounting plate disposed outside the forming plate and fixedly mounted at an open end of the housing of the material pressing section; And
And heating means mounted on the forming plate and the heating means mounting plate for heating the forming plate and the heating means mounting plate. 8. The method of claim 7,
In the molding plate and the heating means mounting plate, at least one heating means mounting passage orthogonal to the through holes of the molding plate is formed therein. The heating means mounting passage is exposed at both ends to the outside so that the heating means is inserted , ≪ / RTI &
Wherein the heating means mounting passage is disposed between the heat and the heat of the through hole of the forming plate so that the compressed waste is discharged to the outside through the through hole of the forming plate without being disturbed. 9. The waste solid fuel according to claim 8, characterized in that a protective member is detachably mounted on a portion of the forming plate corresponding to the housing of the compressed portion of the material, and a through hole corresponding to the through hole formed in the forming plate is formed in the protecting member Manufacturing apparatus. The method according to claim 1,
The material compression section is disposed at a lower portion of the housing of the material conveyance section and accommodates the waste conveyed through the material conveyance section. And a second end rotatably mounted on the housing and a second end rotatably mounted on a shaft and a shaft formed on an outer circumferential surface of the shaft, And at least a plurality of compression screws having spiral portions,
The material heating / molding section has a plurality of integrated molding plates, each of which has a plurality of through-holes formed therein and corresponding to compression screws of the material compression section, respectively; A heating means mounting plate disposed outside the forming plate and fixedly mounted at an open end of the housing of the material pressing section; And heating means mounted on the forming plate and the heating means mounting plate for heating the forming plate and the heating means mounting plate,
The power transmitting portion includes a reducer coupled to the shaft of the second drive portion, a gear assembly coupled to the shaft of the reducer, and a plurality of couplings coupled to the gear assembly and the shaft of each compression screw
Wherein the shafts of the plurality of compression screws of the material compression section are simultaneously rotated by the second drive section. 11. The waste solid fuel producing device according to claim 10, wherein each compression screw of the material compression section has a spiral section formed in a direction opposite to a spiral section of the adjacent compression screw. 11. The method according to claim 10, wherein a protective member is detachably attached to a portion of the molding compartment corresponding to the housing of the compression unit, and a through hole corresponding to the through hole formed in the molding plate is formed in the protection member Fuel production device. 11. The method of claim 10,
The plurality of molding plates and the heating means mounting plate are provided with at least one heating means mounting passage orthogonal to the through holes of the molding plate, and both ends of the heating means mounting passage are exposed to the outside, Respectively,
Wherein the heating means mounting passage is disposed between the heat and the heat of the through hole of the forming plate so that the compressed waste is discharged to the outside through the through hole of the forming plate without being disturbed. The apparatus of claim 1, wherein the material compression unit further includes waste amount detecting means mounted on the inner surface of the housing for transmitting a signal about the amount of waste in the housing to the control unit, And controls the driving of the second driving unit according to the control signal.

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