KR101299028B1 - Apparatus for producing solid fuel - Google Patents

Abstract

PURPOSE: A solid fuel manufacturing device is provided to cut maintenance costs by replacing a forward direction replacement screw and a worn backward direction replacement screw, both worn by screw thread and to enhance productivity because short replacement time rapidly promotes re-progressing of the operation. CONSTITUTION: A solid fuel manufacturing device has a cylinder (110) containing a hopper (111) accepting waste, a forward direction helical axis (122) inside of the cylinder rotating by a drive motor coupled to one side of the cylinder, having a forward direction screw thread inclining in the fixed angle of the thread in the outer periphery, a transfer screw (120) rotating the opposite direction of the forward direction helical axis because of the transfer screw is interlocked to the forward direction helical axis, having a backward direction screw thread inclining in the fixed angle of the thread in the outer periphery, a metal mold part bonded to the other side of the transfer screw and having a penetration hole discharging soil material produced while the mixed, compressed, melted and moved waste passes the hole, and a rotation cutter cutting the solid fuel ejected from the metal mold part in the regular length.

Description

Solid fuel manufacturing equipment {APPARATUS FOR PRODUCING SOLID FUEL}

The present invention relates to a solid fuel production apparatus. More specifically, the waste introduced into the hopper is vortexed with a transfer screw, stirred, compressed, melted by a heater, and passed through the through-hole of the metal mold part to produce a homogeneous solid fuel, and the solid fuel produced is rotated by a cutter. It relates to a solid fuel production apparatus capable of producing a finished product by cutting into.

In general, RDF refers to a solid fuel that is comminuted, dried and compression molded by selecting combustible waste such as paper, wood (sawdust, etc.), fibers, and plastics. In addition, WDF made of wood, RPF made of vinyl, etc. also means solid fuel.

Solid fuel produced from these wastes can be used as a heat source for incineration and power generation facilities to achieve economic and practical waste disposal and energy recovery. In particular, the solid fuel made of waste has excellent characteristics such as controllability, combustibility, transportability and storage property due to uniform shape and weight compared to general waste.

At this time, the solid fuel produced using the combustibles in the waste is the quality of the solid fuel depends on the water content and shape.

The conventional melter has an input hopper for inputting the sorted waste and is composed of a body formed with a heating chamber and a screw formed conveyor for moving the waste through the body, a mold for discharging waste and a driving unit for driving the conveyor.

First of all, the melter is a mixture of water content removal and melting processes in the body, and when the water content of the waste is high, water is not removed and the waste is discharged through the mold in an unmelted state. There was a problem that is produced.

Second, there is a case in which the conveyor due to the wear of the screw thread due to excessive pressure and friction between the waste at the end portion of the conveyor occurs, which causes a problem of increasing the maintenance cost for replacing the conveyor in the melter.

Third, the water content during injection through the mold is high, the surface coating of the solid fuel is not made homogeneously, so the unevenness (breakage) occurs during transportation, loading and storage, resulting in a high defect rate.

In order to solve this problem, the present invention, when the forward screw shaft and the reverse screw shaft rotates for a certain period of time, the wear of the thread is made in the process of compressing the waste and pushed into the through-hole of the metal mold part, in this case, the thread and mold The most wear occurs in the screw in between, the conventional solid fuel manufacturing apparatus is a maintenance cost increases due to replacement, repair caused by replacing the entire screw, while the present invention is the only forward replacement screw and reverse replacement screw due to the wear of the thread The purpose of the present invention is to provide a solid fuel production apparatus that can not only reduce maintenance costs but also shorten replacement time, thereby facilitating rework, and improving productivity.

In addition, the present invention is the through-holes of the metal mold part, the waste in the state of low moisture content is moved to the middle part of the smaller radius is compressed, melted by heat by the heat of the heating wire and heat-coated on the outer surface, the solid fuel discharged is uniform In order to provide a solid fuel manufacturing apparatus that is produced in a homogeneous quality, such solid fuel is not broken or released, and thus a defect rate can be reduced, and the manufacturing process is reduced as well as easy to transport and store until the finished product is produced. There is this.

In order to achieve the above object, the present invention is a cylinder in which a hopper into which waste is introduced; A forward screw shaft which is installed inside the cylinder and is rotated by a driving motor coupled to one side, and has a forward thread inclined at a constant thread angle on an outer circumferential surface thereof, and is engaged with the gear by the forward screw shaft to rotate in a opposite direction, and a thread angle on the outer circumferential surface of the cylinder; A conveying screw including a reverse screw shaft formed with a reverse thread inclined to; A metal mold part which is coupled to the other side of the transfer screw and has a through hole through which waste which is stirred, compressed and melted and moved and discharged manufactured solid fuel is discharged; It provides a solid fuel manufacturing apparatus comprising a; and a rotary cutter for cutting a solid fuel discharged from the metal mold to a predetermined length.

The cylinder may include a heater coupled to an outer circumferential surface to heat the waste, a water discharge hole for discharging moisture generated by melting the waste, and a steam discharge hole for discharging steam generated by melting the waste. Provided is a solid fuel production apparatus.

In addition, the transfer screw, the forward thread is coupled to the end of the forward screw shaft extending, replaceable forward replacement screw, the reverse thread is coupled to the end of the reverse screw shaft extended, replaceable reverse replacement screw Further, wherein the forward replacement screw and the reverse replacement screw, the projections protruding in the polygonal shape at the ends of the forward screw shaft and the reverse screw shaft, respectively, is formed, each solid is characterized in that coupled to the protrusion to prevent rotation Provided is a fuel manufacturing apparatus.

In addition, the metal mold, provides a solid fuel manufacturing apparatus, characterized in that a plurality of mold plates are formed of a predetermined thickness so that the through-holes are formed to extend.

In addition, the through hole is formed so that the radius is smaller toward the middle portion from the inlet, the larger from the middle portion to the outlet to provide a solid fuel manufacturing apparatus, characterized in that the waste is compressed.

In addition, the metal mold unit provides a solid fuel manufacturing apparatus, characterized in that the heating wire is formed inside the melt to pass through the through hole to the solid fuel with the outer surface coating is discharged.

According to the present invention, when the forward screw shaft and the reverse screw shaft rotates for a certain period of time, the wear of the thread is made in the process of compressing the waste and pushed into the through-hole of the metal mold part, in particular, the screw between the screw and the mold The most wear occurs in the conventional solid fuel manufacturing apparatus, while the maintenance cost increases due to replacement and repair caused by replacing the entire screw, the present invention is maintained by replacing only the forward replacement screw and reverse replacement screw due to the wear of the thread. In addition to reducing costs, the replacement time is also short, making it easy to rerun the work quickly and improving productivity.

In addition, according to the present invention, the solid fuel discharged by the through-holes of the metal mold part is moved to the middle part where the moisture content is lowered to a smaller radius and is compressed, melted by heat by heat generation of the heating wire, and thermally coated on the outer surface. Produced in a uniform, homogeneous quality, the solid fuel is not broken or released can reduce the defect rate, and the manufacturing process is reduced as well as easy to transport and storage until the finished product is produced.

1 is a side cross-sectional view showing a solid fuel production apparatus according to the present invention,
Figure 2 is a plan sectional view showing a solid fuel production apparatus according to the present invention,
Figure 3 is a side view showing a coupling state of the transfer screw of the solid fuel production apparatus according to the present invention,
Figure 4 is a side view showing an exploded state of the transfer screw of the solid fuel production apparatus according to the present invention,
Figure 5 is a side view showing a metal mold portion of the solid fuel production apparatus according to the present invention,
Figure 6 is a front view showing a metal mold portion of the solid fuel production apparatus according to the present invention,
7 is a cross-sectional view showing a metal mold portion of the solid fuel production apparatus according to the present invention,
8 is a front view showing a mold plate of a metal mold part of the solid fuel production apparatus according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the constituent elements of the drawings, it is to be noted that the same constituent elements are denoted by the same reference numerals even if they are shown in different drawings. In describing the present invention, when it is determined that the detailed description of the related well-known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a side cross-sectional view showing a solid fuel production apparatus according to the present invention, Figure 2 is a cross-sectional view showing a solid fuel production apparatus according to the present invention.

1 and 2, the solid fuel manufacturing apparatus according to the present invention includes a cylinder 110, a transfer screw 120, a metal mold part 130, and a rotary cutter 140.

The cylinder 110 is a tubular body, and a hopper 111 into which waste is introduced into the upper side is formed.

Hopper 111 is formed on the upper end of the cylinder 110, and is formed through the cylinder 110 so that waste can be introduced into the cylinder (110).

In addition, the cylinder 110 includes a heater 112, a water discharge hole 113, and a water vapor discharge hole 114.

The heater 112 is formed surrounding the outer circumferential surface of the cylinder 110 so as to heat the waste moving to the metal mold 130 by the transfer screw 120 to be described later. In particular, the heater 112 is stirred by the transfer screw 120 to add heat to the waste to be compressed to allow the moisture to be discharged.

The water discharge hole 113 is a hole through which waste is melted and water generated is preferably formed at the lower side of the cylinder 110.

The steam discharge hole 114 is preferably formed above the cylinder 110 as a hole through which waste water is melted and discharged.

That is, the waste is discharged to the water outlet 133, the moisture contained in the heat generated in the process of stirring and compression by the transfer screw 120 and the heater 112 and the heat transmitted to the heat generated by the heater 112, The evaporated water vapor is discharged to the water vapor outlet 133.

In particular, the upper side of the steam outlet 133 is preferably formed with a duct 115 to discharge the steam and gas discharged from the waste to the outside.

The transfer screw 120 is installed inside the cylinder 110 and rotates with the driving motor 121 coupled to one side. In addition, the drive motor 121 is coupled to the reducer 129 to operate.

Figure 3 is a side view showing the coupling state of the transfer screw of the solid fuel production apparatus according to the present invention, Figure 4 is a side view showing the decomposition state of the transfer screw of the solid fuel production apparatus according to the present invention.

3 and 4, the transfer screw 120 includes a forward screw shaft 122, a forward replacement screw 124, a reverse screw shaft 125, and a reverse replacement screw 127.

The forward screw shaft 122 has a forward thread 123 inclined at a constant thread angle on the outer circumferential surface thereof.

The forward replacement screw 124 is coupled to extend the forward thread 123 to the end of the forward screw shaft 122, it is replaceable. In particular, the forward replacement screw 124 is preferably formed with a forward thread 123 inclined at the same thread angle to extend with the forward thread 123 of the forward screw shaft 122.

The reverse screw shaft 125 meshes with the gear 1200 formed on one outer circumferential surface of the forward screw shaft 122 to rotate in a direction opposite to the rotation direction of the forward screw shaft 122. In addition, the reverse screw shaft 125 is rotated at the same speed as the rotation speed of the forward screw shaft 122 and the reverse thread is formed on the outer peripheral surface inclined at the thread angle.

Reverse replacement screw 127 is coupled to the end of the reverse threaded shaft 125, the reverse thread 126 is extended, it is replaceable. In particular, the reverse replacement screw 127 is preferably inclined at the same thread angle to extend with the reverse thread 126 of the reverse screw shaft 125, the reverse thread 126 is formed.

This, the forward thread 123 serves to move the waste from one side of the transfer screw 120 to the other side and to apply pressure to be discharged by being pushed into the through-hole 131 of the metal mold 130 to be described later, the reverse direction The thread 126 serves to move the waste moved by the forward thread 123 from one side to the other.

The waste moving by the forward thread 123 is subjected to the opposite propulsion by the reverse thread 126 to form vortices, which are stirred and compressed.

At this time, the moisture contained in the waste dehydration occurs by compression in the cylinder 110, it is discharged through the water discharge hole 113.

In addition, the waste is vortexed to slow the moving speed, the stirring and compression to extend the heating time to the heat source delivered by the heater 112, the water is evaporated to be discharged to the steam outlet 133 is melted.

That is, waste can be improved by lowering the moisture content by the rotation of the forward screw shaft 122 and the reverse screw shaft 125 and the discharge of water by the heater 112 and the water vapor discharge by evaporation of the water.

On the other hand, in the forward replacement screw 124 and the reverse replacement screw 127, protrusions 128 protruding in a polygonal shape are formed at the ends of the forward screw shaft 122 and the reverse screw shaft 125, respectively, the protrusion 128 Are respectively coupled to and fixed with screws 1210 to prevent rotation.

At this time, the ends of the threads of the forward replacement screw 124 and the reverse replacement screw 127 is preferably formed so that the ends of the threads of the forward screw shaft 122 and the reverse screw shaft 125 can extend in series with each other. (See Figures 3 and 4)

That is, the forward screw 124 and the reverse screw 127 is coupled to the ends of the forward screw shaft 122 and the reverse screw shaft 125 so that the forward screw shaft 122 and the reverse screw shaft ( At the end of 125, the protrusion 128 is formed in a polygonal shape.

This, the end of the forward screw shaft 122 and the reverse screw shaft 125 pushes the waste into the through-hole 131 of the metal mold 130, the pressure is high, the wear rate is high, the forward replacement screw 124 and The replacement of the reverse replacement screw 127 facilitates the operation, and the maintenance cost is reduced.

That is, when the forward screw shaft 122 and the reverse screw shaft 125 rotates for a predetermined period of time, the wear of the thread is made in the process of compressing the waste and pushing it into the through hole 131 of the metal mold part 130. In this thread wear, the forward screw shaft 122 and the reverse screw shaft 125 must be replaced as a whole. At this time, the maintenance cost is reduced by replacing only the forward replacement screw 124 and the reverse replacement screw 127. In addition, the replacement time is short, so it is easy to redo the work quickly and the productivity is improved.

5 is a side view showing a metal mold portion of the solid fuel production apparatus according to the present invention, Figure 6 is a front view showing a metal mold portion of the solid fuel production apparatus according to the present invention, Figure 7 is a solid fuel manufacturing apparatus of the present invention 8 is a cross-sectional view showing a metal mold part, and FIG. 8 is a front view showing a mold plate of the metal mold part of the solid fuel production apparatus according to the present invention.

5 and 6, the metal mold 130 is coupled to the other side of the transfer screw 120.

In addition, the metal mold 130 is agitated, compressed and melted simultaneously from one side to the other side by the forward thread 123 of the transfer screw 120, and the moving waste flows in, and recompresses and re-enters the introduced waste. Through-holes 131 are formed to melt and pass through and discharged as solid fuel.

In addition, the metal mold 130 is formed by stacking a plurality of mold plates 134 having a predetermined thickness. In addition, each mold plate 134 is formed with a through hole 131 through-hole 131 is formed through the transverse direction, it is preferable that each through hole 131 is formed to extend.

Here, as shown in FIG. 7, the through hole 131 is formed such that the radius of the inlet 132 becomes smaller toward the middle portion and increases from the middle portion to the outlet 133.

That is, the waste is introduced into the inlet 132 by the pressure pushed by the transfer screw 120 from the inlet 132 of the through hole 131, and is compressed by the through hole 131 that becomes smaller toward the middle part. The discharge port 133 is discharged through the through hole 131 which is increased.

In addition, the through hole 131 may be formed through a variety of shapes, depending on the shape of the solid fuel may be produced differently.

In addition, referring to FIG. 8, the metal mold part 130 has a heating wire 135 formed therein, and is formed between the through holes 131 in the vertical direction to be uniform in each of the through holes 131. Allow heat to be transferred.

That is, in the metal mold part 130, the waste in the state of low moisture content is moved to the middle part where the radius of the through hole 131 becomes smaller and is compressed, melted by heat by the heat generated by the heating wire 135, and thermal coating on the outer surface. As a result, the discharged solid fuel is produced with uniform and homogeneous quality.

In addition, the solid fuel is not broken or released can reduce the defective rate, and is produced as a finished product, not only reduces the manufacturing process, but also easy to transport and storage is easy to manage.

The rotary cutter 140 cuts the solid fuel discharged from the through hole 131 of the metal mold 130 to a predetermined length. In addition, the rotary cutter 140 is operated by the cutter motor 141.

As described above, the solid fuel manufacturing apparatus according to the present invention, by vortexing the waste introduced into the hopper 111 to the transfer screw 120, stirring, compressing, melting with a heater 112, of the metal mold 130 Through the through hole 131 to produce a homogeneous solid fuel, and can be produced by cutting the solid fuel produced by the rotary cutter 140, the manufacturing process is simplified and uniform compared to the existing manufacturing apparatus It is a manufacturing device that is easy to transport and store as well as to lower the defective rate by producing a homogeneous solid fuel.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the same range should be construed as being included in the scope of the present invention.

110: cylinder 111: hopper
112: heater 113: water discharge hole
114: water vapor discharge hole 115: duct
120: transfer screw 121: drive motor
122: forward threaded shaft 123: forward thread
124: forward replacement screw 125: reverse screw shaft
126: reverse screw 127: reverse thread
128: protrusion 129: reducer
1200: gear 1210: screw
130: metal mold part 131: through hole
132: inlet 133: outlet
134: mold plate 135: heating wire
140: rotary cutter 141: cutter motor

Claims (4)

A cylinder in which a hopper into which waste is injected is formed;
A forward screw shaft which is installed inside the cylinder and is rotated by a driving motor coupled to one side, and has a forward thread inclined at a constant thread angle on an outer circumferential surface thereof, and is engaged with the gear by the forward screw shaft to rotate in a opposite direction, and a thread angle on the outer circumferential surface of the cylinder; A conveying screw including a reverse screw shaft formed with a reverse thread inclined to;
A metal mold part which is coupled to the other side of the transfer screw and has a through hole through which waste which is stirred, compressed and melted and moved and discharged manufactured solid fuel is discharged; And
And a rotary cutter for cutting the solid fuel discharged from the metal mold part to a predetermined length.
The method of claim 1, wherein the cylinder,
A heater coupled to an outer circumferential surface to heat the waste;
A water discharge hole through which the waste is melted and water generated is discharged;
Solid fuel manufacturing apparatus comprising a steam discharge hole for discharging the waste water generated by melting the waste.
The method of claim 1, wherein the transfer screw,
A forward replaceable screw coupled to the end of the forward screw shaft so as to extend and replaceable with a forward replace screw;
The reverse screw thread is extended to the end of the reverse screw shaft, and further comprises a replaceable reverse screw,
The forward replacement screw and reverse replacement screw,
Each of the protrusions protruding in a polygonal shape is formed at the ends of the forward screw shaft and the reverse screw shaft, respectively, coupled to the protrusions, characterized in that the rotation is prevented.
The method of claim 1, wherein the metal mold portion is formed by stacking a plurality of mold plates having a predetermined thickness so that the through-hole is formed to extend,
The through-hole is formed so that the radius is smaller toward the middle portion from the inlet, the larger from the middle portion to the outlet port is compressed waste,
The metal mold unit solid fuel manufacturing apparatus, characterized in that the heat wire is formed inside to melt the waste passing through the through hole with heat and discharge the solid fuel made of the outer surface coating.

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