KR101097899B1 - Land drying apparatus for an ocean disposal waste - Google Patents

Abstract

PURPOSE: A land drying equipment of wastes dumped into ocean is provided to form a drying room using steel members which are not thick by rapidly cooling a drying room through the cooling air swirled in the outer wall of a drying room. CONSTITUTION: A land drying equipment of wastes dumped into ocean comprises a RPF(refuse plastic fuel) burner(110), a drying room(140), an agitating blade, a rotating unit(160), a refractory cooling room(170) and a spiral blade. The drying room comprises first and second drying rooms(120,130). The first drying room dries the waste through the hot air of high temperature and high speed generated in the RPF burner. The second drying room secondly dries the waste passing through the first drying room through the hot air. The agitating blades are radially arranged at least one between first and second drying rooms in one or more inner wall at a constant and is successively and diagonally formed into the longitudinal direction of the inner wall. While agitating blades mix the waste, a swirling passage for swirling the hot air is formed. The refractory cooling room injects the cold air into the surface of the second drying room and cools the surface of the second drying room through the heat exchange. While the cold air is swirled, the surface of the second drying room is cooled rapidly. The spiral blade forms the flow passage for swirling.

Description

Land drying apparatus for an ocean disposal waste

The present invention relates to a marine dumping waste land drying apparatus, and more particularly, after the waste is dumped to the sea, such as food waste or sewage sludge or livestock manure using high heat to dry it RPF (Refuse Plastic Fuel: waste plastic) Solid fuel) The present invention relates to a marine dumping land drying apparatus that can be used as a fuel of a burner.

In general, wastes such as tires, vinyls and plastics, food waste, sewage sludge, and livestock wastes used in daily life are only partially recycled, but most of them are landfilled or incinerated. Since the waste treatment method causes landfill and land contamination by landfill and landfilled wastes, the method of disposing wastes by incineration or discharging them to a designated marine dumping area of the sea is mainly used. .
However, since the London Convention adopted in 1972 to prevent marine pollution caused by ocean dumping of wastes, Korea can no longer discharge wastes to the sea since 1994. It must be discarded.
However, before the waste is incinerated, the moisture contained in the waste should be dried, and a drying apparatus for drying the waste using a hot hot air has been disclosed.

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1 is a view schematically showing a conventional waste drying apparatus.

As shown in FIG. 1, the conventional waste drying apparatus includes an RPF burner 10 that generates hot / fast hot air, and a waste that is supplied from the outside and the waste is generated at the RPF burner 10. Drying chamber 40 and the drying chamber in which the primary drying chamber 20 to be dried while moving by the hot air of the secondary drying chamber 30 and the secondary drying chamber 30 for drying the waste passed through the primary drying chamber 20 in a double Rotating means 50 and the like for rotating the 40, the stirring blade is formed on the inner wall of the tube of the primary drying chamber 20 and the secondary drying chamber 30 is formed, the waste passing through the hollow of the drying chamber is drying chamber After moving in the direction of rotation, the water drops to a certain height to dry evenly.

However, in the conventional waste drying apparatus as described above, since the stirring blades are arranged radially at regular intervals on the inner wall of the tube of the drying chamber and are discontinuously arranged at a constant length with respect to the longitudinal direction of the tube, many waste drying chambers are used. When a large amount of waste is supplied, the waste is caught by the stirring blades and thus cannot be supplied to the secondary drying chamber 30 through the hollow of the primary drying chamber 20, and thus, the drying efficiency of the waste is lowered.

In addition, since the hot air flowing into the drying chamber is a normal flow so that a predetermined amount passes vertically with respect to the cross-sectional area of the hollow inside the tube of the drying chamber, when the waste is adsorbed to the inner wall of the tube of the drying chamber while the moisture contained in the waste is dried. Waste gas is not supplied to the secondary drying chamber 30 through the hollow of the primary drying chamber 20 due to the hot air of the normal type, such that the drying efficiency of the marine dumping waste containing 80% or more of water is reduced. Along with the problem is the hassle of cleaning the interior of the drying room frequently.

Accordingly, an object of the present invention is to provide a marine dumping waste land drying apparatus which can improve the drying efficiency of the waste by allowing the hot air supplied to the drying chamber for drying the marine dumping waste to vortex through the stirring blades formed obliquely on the inner wall of the drying chamber. It is.

Meanwhile, the object of the present invention is not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

To this end, according to the present invention, the RPF burner for generating a high temperature / high speed hot air; The primary drying chamber which allows the waste supplied from the outside to be moved and dried by the hot / high speed hot air generated in the RPF burner and the secondary drying chamber which allows the waste passing through the primary drying chamber to be secondly dried by the hot air. A drying chamber formed in duplicate; The vortex flow path is formed continuously and obliquely in the longitudinal direction of the inner wall in a state arranged radially on at least one inner wall of the at least one of the primary drying chamber and the secondary drying chamber to stir waste and vortex the hot air at the same time. Stirring blade to form; Rotating means located in the outside of the secondary drying chamber to rotate the secondary drying chamber; A refractory cooling chamber installed on an outer wall of the secondary drying chamber and injecting cooling air into a surface of the secondary drying chamber to cool the surface of the secondary drying chamber through heat exchange; And a spiral blade formed spirally on the inner wall of the refractory cooling chamber to form a vortex flow path to rapidly cool the surface of the secondary drying chamber while the cooling air vortex.

Here, the drying chamber has a state in which the cylindrical primary drying chamber is spaced apart and fixed to the inside of the cylindrical secondary drying chamber by a support, and each inner hollow is moved while the waste is dried by hot air. It is preferable to serve as the first and second moving spaces.

The primary drying chamber may further include: a hot air inlet pipe connected to an exhaust pipe of the RPF burner at one end thereof so that hot air flows into the first moving space; It is preferable that a waste inlet pipe is formed so that the waste is supplied to the first moving space.

The secondary drying chamber may include: an exhaust pipe configured to exhaust hot air introduced into the second moving space through the first moving space of the primary drying chamber to a purifying means at a portion corresponding to the hot air inflow pipe and the waste inflow pipe; ; It is preferable that a discharge tube is formed to discharge the dried waste to the outside.

Here, the stirring blades, the primary stirring blades formed in an oblique line in the longitudinal direction of the inner wall in a state in which a plurality of wings are radially disposed at a predetermined interval on the inner wall of the primary drying chamber, the inner wall of the secondary drying chamber It is preferable to include at least one of the secondary stirring blades formed in a diagonal or straight line in the longitudinal direction of the inner wall in a state in which a plurality of wings are radially arranged at regular intervals.

Therefore, according to the present invention, the hot air supplied to the drying chamber for drying the marine dumping waste is vortexed to improve the drying efficiency of the marine dumping waste having a high water content.

In addition, by allowing the drying chamber to be rapidly cooled through the cooling air supplied while swirling to the outer wall of the drying chamber, it is possible to form a drying chamber using a non-thick steel member, thereby minimizing the volume of the drying chamber and reducing maintenance costs. .

On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a view schematically showing a conventional waste drying apparatus;
Figure 2 is a side view showing a marine dumping land waste drying apparatus according to a preferred embodiment of the present invention;
Figure 3 is a side cross-sectional view showing a marine dumping land waste apparatus of Figure 2;
Figure 4 is a view showing the interior of the drying chamber in the marine dumping land drying apparatus of Figure 2; And
5 is a view showing the interior of the cooling means in the marine dumping land drying apparatus of FIG.

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

Figure 2 is a side view showing a marine dumping waste land drying apparatus according to a preferred embodiment of the present invention, Figure 3 is a side cross-sectional view showing a marine dumping waste land drying apparatus of Figure 2, Figure 4 is a marine dumping waste land of Figure 2 In the drying apparatus is a view showing the interior of the drying chamber, Figure 5 is a view showing the interior of the cooling means in the marine waste land land drying apparatus of FIG.

As shown in Figure 2 to 5, marine dumping waste land drying apparatus 100 according to a preferred embodiment of the present invention, RPF burner 110 for generating a high temperature / high speed hot air, waste from the outside, that is, marine Waste that has passed through the primary drying chamber 120 and the primary drying chamber 120 to receive the dumping waste and be dried while being moved by the hot / high speed hot air generated in the RPF burner 110 is supplied to the hot air. Secondary drying chamber 130 for secondary drying by the drying chamber 140 is formed in a double, the inner wall of the inner wall in a radially arranged state at regular intervals on the inner wall of the primary drying chamber 120 and the secondary drying chamber 130 Stirring blades 150 which are continuously and obliquely formed in the longitudinal direction to form a vortex flow path for stirring the waste and vortex hot air at the same time, are located outside the secondary drying chamber 130 and are the primary and secondary drying chambers. (120,130) Refractory cooling is installed on the rotating means 160 to rotate, the outer wall of the secondary drying chamber 130 and injected cooling air into the surface of the secondary drying chamber 130 to cool the surface of the secondary drying chamber 130 through heat exchange. Spiral wings 180 are formed spirally on the inner wall of the chamber 170 and the refractory cooling chamber 170 to form a vortex flow passage so as to quickly cool the surface of the secondary drying chamber 130 while the cooling air is vortexed. It includes.

Here, the marine dumping waste land drying apparatus 100 according to a preferred embodiment of the present invention is connected to the end of the secondary drying chamber 140 is generated from the RPF burner 110 is exhausted to the outside after drying the waste In addition, the exhaust pipe 131 for exhausting the hot air, that is, the combustion gas of the waste plastic solid fuel to the neutral state in the neutral state, the harmful substance of the harmful gas purifying means 200 is connected to the exhaust pipe 131 It is desirable to purify by).

The RPF burner 110 may be a burner that generates hot / high speed hot air, and may have a known configuration for forming hot air using a conventional RPF. Among them, in the present embodiment, it may be composed of a combustion burner composed of a combustion furnace, a grate rotating means, a blowing chamber, a fuel input means, an igniter and the like. To describe this in more detail, the combustion furnace is manufactured in a circular or rectangular shape, and is formed by wrapping a fireproof material and a heat insulating material on a base having a predetermined height. Here, the combustion furnace is formed in a conical shape of the upper side is narrower gradually. In addition, an exhaust pipe is installed at one side of the upper side of the combustion furnace to discharge hot air of high temperature generated in the combustion process into the primary drying chamber 120 of the drying chamber 140. In addition, the grate is supported on the post and installed in the combustion furnace. The exhaust pipe has an appropriate diameter to smoothly discharge hot air from the combustion furnace, and an insulation is installed to prevent loss of hot air. On the other hand, the grate is formed of a plurality of layers gradually lowered from the center to the edge on the upper surface, and made by filling the refractory material in the interior consisting of a metal plate, it is fixed on the post rotatably installed on the bottom of the furnace . The grate rotating means is for slowly rotating the grate, and between the sprocket and the sprocket mounted on the outer side of the combustion furnace, the sprocket attached to the post and the motor shaft to rotate the post supported by the grate It consists of a chain to fasten. In addition, the blower chamber serves to blow external air over the grate on which the RPF fuel is placed and burned, and is vertically disposed above the grate of the combustion furnace at the top of the combustion furnace. And the blower chamber is attached to the blower to apply the blowing pressure by blowing the outside air into the inside of the blower chamber from the closed upper one side, and the inside of the moving passage of the fuel supplied by the air and fuel injection means introduced by the blower A fuel injection hole connected to the fuel injection means and opened downward is formed for partitioning. In addition, a blower hole is formed in the lower portion of the blower chamber, which is introduced by the blower, moves along the outside of the fuel injection hole, and is discharged through the blower hole. On the other hand, the fuel input means is to inject the fuel over the grate, the hopper RPF fuel is supplied through a screw conveyor, the input pipe connecting the hopper and the fuel injection hole, the fuel supplied to the hopper fuel injection hole And a motor for rotating the screw and a motor for rotating the screw. In addition, the igniter is for igniting the fuel injected over the grate, the nozzle which is spaced a predetermined distance above the grate and the ignition tube for supplying gas to the nozzle are sequentially connected.

The drying chamber 140 receives the waste from the external waste supply means 300 and the primary drying chamber 120 to dry while moving the waste by the high temperature / high speed hot air generated from the RPF burner 110. Secondary drying chamber 130 is a drying means for forming a second drying chamber 130 to allow the waste passing through the primary drying chamber 120 to be secondly dried by the hot air, the cylindrical primary shape drying chamber 120 by the support The first and second movements having a state fixed to the inside of the secondary drying chamber 130 of the cylindrical shape, each inner hollow is moved while the waste supplied from the waste supply means 300 is dried by hot air Play the role of space.

Here, the primary drying chamber 120 is connected to the exhaust pipe of the RPF burner 110 at one end thereof so that the hot air inflow pipe 121 and the waste supply means 300 allow hot air to flow into the first moving space. A waste inflow pipe 122 is formed to be supplied to the first moving space.

The secondary drying chamber 130 is introduced into the second moving space via a first moving space of the primary drying chamber 120 at a portion corresponding to the hot air inflow pipe 121 and the waste inflow pipe 122. An exhaust pipe 131 for discharging the hot air to the purifying means 200 and a discharge tube 132 for discharging the dried waste to the outside are formed.

On the other hand, the drying chamber 140, the length of the secondary drying chamber 130 is formed slightly longer than the length of the primary drying chamber 120 and the end of the primary drying chamber 120 to have an open open area In a state in which hot air and waste introduced or supplied from the hot air inflow pipe 121 and the waste inflow pipe 122 of the primary drying chamber 120 are discharged to the second moving space through the open portion via the first moving space, Again, the hot air is exhausted through the exhaust pipe 131 through the second moving space of the secondary drying chamber 120, and the dried waste is discharged through the discharge pipe 132.

Here, it is preferable that the drying waste discharged from the discharge pipe 132, that is, the RPF fuel, is supplied to the fuel injection means of the RPF burner 110 through a conveyor belt or the like.

Therefore, according to the drying chamber 140, by having a dual structure in which the waste is continuously dried by the primary drying chamber 120 and the secondary drying chamber 130, it is possible to improve the space utilization by reducing the size of the auxiliary facilities have.

In addition, by drying the waste through the hot air to move the secondary drying chamber 130 with the waste and the heat dissipated from the primary drying chamber 120 to the second moving space of the secondary drying chamber 130, the waste is quickly Allow drying to improve drying efficiency.

The stirring blade 150 is formed continuously and obliquely in the longitudinal direction of the inner wall in a state arranged radially at regular intervals on the inner wall of the primary drying chamber 120 and the secondary drying chamber 130 to agitate the waste and At the same time as a stirring means for forming a vortex flow path for allowing hot air to vortex, a plurality of wings on the inner wall of the primary drying chamber 120 is formed in a diagonal line in the longitudinal direction of the inner wall in a radially arranged state having a predetermined interval. Secondary stirring blade 151 and secondary stirring blade 152 formed in an oblique or straight line in the longitudinal direction of the inner wall in a state in which a plurality of wings are radially disposed at regular intervals on the inner wall of the secondary drying chamber 130. It includes.

Here, the primary and secondary stirring blades (151, 152), the upper side is bent at a certain angle toward the rotation direction of the drying chamber 140, the rotation portion of the drying chamber 140 in the bottom of the moving space along the rotation direction It is possible to further improve the agitation function that allows the located waste to be moved to a certain height and then dropped to the bottom.

On the other hand, the secondary stirring wing 152, a plurality of wings may be formed in a straight line rather than oblique in the longitudinal direction of the inner wall, which, depending on the temperature of the drying chamber 140 via the primary drying chamber 120 While the moisture of the waste may be almost removed, the possibility of the waste being caught by the stirring blades 150 or adsorbed on the inner wall is very unlikely, so if the temperature of the primary drying chamber 120 is high, It is preferable to form the secondary stirring wing 152 of the secondary drying chamber 130 in a straight line so that the waste is quickly discharged to the discharge pipe 132 via the second moving space through hot air having a normal flow rather than a vortex. Do.

Therefore, according to the stirring blade 150, when the waste and hot / high speed hot wind is supplied to the primary drying chamber 120, the hot air is swirled to pass through the first moving space so that the waste is the first stir blade ( 151 is prevented from being trapped or adsorbed on the inner wall, and subsequently prevents the waste oil passing through the second moving space from being caught by the secondary stir blade 152 or adsorbed to the inner wall, and enables even drying of the waste. The efficiency can be improved.

The rotating means 160 is located outside the secondary drying chamber 130 and means for rotating the primary and secondary drying chambers 120 and 130. The rotating means 160 is disposed at an intermediate portion with respect to the longitudinal direction of the secondary drying chamber 130. Rotating gear 161 is fixed while wrapping the outer wall of the vehicle drying room 130, drive gear 163 to transmit the driving force of the drive motor 162 to the rotary gear 161 to rotate the rotary gear 161, Secondary drying room 130 by supporting the rotation guide 164 and the rotation guide 164 is fixed while wrapping the outer wall of the secondary drying room 130 at one end and the other end with respect to the longitudinal direction of the secondary drying room 130 Guide roller 165 to enable a stable rotation state of the.

Therefore, according to the rotating means 160, it is possible to stably rotate the primary drying chamber 120 fixedly spaced inside the secondary drying chamber 130 and the secondary drying chamber 130 to improve the drying efficiency of the waste.

The refractory cooling chamber 170 is installed on the outer wall of the secondary drying chamber 130 at regular intervals and injects cooling air to the surface of the secondary drying chamber 130 to exchange heat through the surface of the secondary drying chamber 130. As a means for cooling, the secondary drying chamber having a high temperature state by cooling air supplied from an external cooling air injecting means (not shown) having a cooling air moving space spaced at regular intervals on the outer wall of the secondary drying chamber 130 ( 130) to cool and to cool to the primary drying chamber (120).

Here, since the primary drying chamber 120 and the secondary drying chamber 130 has a temperature of about 2,000 ° C. and at least 1,000 ° C., in the related art, in order to improve the fire resistance of the interior of the drying chamber 140, a separate firebrick or The insulation member had to be provided, but this caused a problem that the volume of the drying chamber 140 was increased, and at the same time, the maintenance cost due to the replacement of the firebrick or the insulation member was high.

However, when the secondary drying chamber 130 and the primary drying chamber 120 are cooled through the refractory cooling chamber 170, the volume of the drying chamber 140 does not have to be provided with a separate refractory brick or a heat insulating member as in the prior art. Can be prevented from increasing, and its maintenance cost can also be advantageously not required.

Therefore, according to the refractory cooling chamber 170, cooling air is injected into the surface of the secondary drying chamber 130 to cool the surface of the secondary drying chamber 130 through heat exchange and at the same time, the primary drying chamber 120 By cooling even, it is possible to form the drying chamber 140 through the non-thick steel member to minimize the volume and reduce the maintenance cost.

The spiral wing 180 is formed as a spiral on the inner wall of the refractory cooling chamber 170 as a means for forming a vortex flow passage to rapidly cool the surface of the secondary drying chamber 130 while the cooling air is vortexed. And spirally formed from the cooling air inlet 171 formed in the cooling chamber 170 so that the cooling air swirls in the space between the inner wall and the surface of the secondary drying chamber 130 and the surface of the secondary drying chamber 130. By allowing heat exchange to enable rapid cooling of the drying chamber 140, through this, the fire resistance of the drying chamber 140 may be improved.

Hereinafter, the operation of the marine dumping land drying apparatus according to a preferred embodiment of the present invention will be described in detail.

First, the RPF fuel is burned by the RPF burner 110 to supply hot / high speed hot air to the first moving space through the hot air inflow pipe 121 of the primary drying chamber 120, and at the same time, the waste supply means 300. From the waste flows into the first moving space through the waste inlet pipe 122 of the primary drying chamber 120 from.

Here, the primary drying chamber 120 is rotated while having a constant speed in a predetermined direction by the rotating means 160 for rotating the secondary drying chamber 130.

Thereafter, the waste is dried while moving along the first moving space from one end of the primary drying chamber 120 to the other end by the hot air, wherein the waste is formed continuously and obliquely in the longitudinal direction on the inner wall of the primary drying chamber 120. Since the hot air is vortexed by the stirring blade 150, the waste is not caught on the stirring blade 150 or evenly adsorbed on the inner wall, thereby allowing even drying.

Thereafter, the waste moved to the other end of the primary drying chamber 120 is dried while moving along the second moving space from the other end of the secondary drying chamber 130 to one end by the hot air, wherein the secondary drying chamber ( Since the hot air is vortexed by the stirring blades 150 formed obliquely in the longitudinal direction on the inner wall of 130, waste is not caught on the stirring blades 150 or evenly dried without being adsorbed on the inner wall.

Thereafter, the hot air moved along the second moving space to one end of the secondary drying chamber 130 is supplied to the purifying means 200 through an exhaust pipe 131 formed at one end of the secondary drying chamber 130 to prevent harmful substances. Emissions to the atmosphere in a purified state.

In addition, the waste in the dry completion state moved along the second moving space to one end of the secondary drying chamber 130 is discharged to the outside through the discharge tube 132 formed at one end of the secondary drying chamber 130, It is supplied to the fuel input means of the RPF burner 110 through a conveyor belt or the like and is regenerated into RPF fuel.

Here, the secondary drying chamber 130, the spiral wing 180 is formed in the refractory cooling chamber 170 and the refractory cooling chamber 170 surrounding the outer wall of the secondary drying chamber 130 to form a vortex flow path (180). Heat exchanged by the cooling air supplied by swirling through).

Therefore, according to the above, through the stirring blade 150 is formed obliquely on the inner wall of the primary drying chamber 120 and the secondary drying chamber 130 to form a vortex flow passage for stirring the waste and vortex hot air at the same time By allowing the waste introduced into the drying chambers 120 and 130 to be dried while moving through the moving space by the hot air supplied while swirling, the waste is prevented from being caught by the stirring blade 150 or adsorbed on the inner wall to allow even drying of the waste. The drying efficiency can be improved.

In addition, through the refractory cooling chamber 170 and the spiral wing 180 to supply the cooling air vortex to the surface of the secondary drying chamber 130, the cooling air vortex on the surface of the secondary drying chamber 130 It is possible to form the drying chamber 140 through the non-thick steel member by rapidly cooling the surface of the secondary drying chamber 130 by heat exchange to be injected while hitting it can minimize the volume and reduce the maintenance cost.

Although the present invention has been described with reference to the specific embodiments, various modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the invention is not to be determined by the embodiments described, but should be determined by equivalents of the claims and the claims.

Claims (5)

An RPF burner 110 generating hot / high speed hot air;
Waste from the outside is passed through the primary drying chamber 120 and the primary drying chamber 120 to be dried while being moved by the hot / high speed hot air generated in the RPF burner 110 by the hot air. A drying chamber 140 in which a secondary drying chamber 130 for allowing secondary drying is formed in duplicate;
At least one of the primary drying chamber 120 and the secondary drying chamber 130 is formed radially and continuously in the longitudinal direction of the inner wall in a state arranged radially at regular intervals at a predetermined interval to stir the waste and at the same time vortex hot air Agitation blade 150 to form a vortex flow path to be made;
Rotating means 160 is located outside the secondary drying chamber 130 to rotate the secondary drying chamber 130;
A refractory cooling chamber 170 installed on an outer wall of the secondary drying chamber 130 and injecting cooling air into the surface of the secondary drying chamber 130 to cool the surface of the secondary drying chamber 130 through heat exchange; And
Spiral wings 180 are formed spirally on the inner wall of the refractory cooling chamber 170 to form a vortex flow path to rapidly cool the surface of the secondary drying chamber 130 while cooling air is vortexed. Land dumping equipment for marine dumping waste. The method of claim 1, wherein the drying chamber 140,
Cylindrical primary drying chamber 120 has a state fixed to the inside of the cylindrical secondary drying chamber 130 by a support,
Each of the inner hollow is an offshore waste land drying apparatus, characterized in that serves as the first and second moving space in which the waste is moved by drying the hot air. The method of claim 2, wherein the primary drying chamber 120,
A hot air inlet pipe 121 connected to an exhaust pipe of the RPF burner 110 at one end thereof so that hot air flows into the first moving space;
Marine dumping waste land, characterized in that the waste inlet pipe 122 is formed so that the waste is supplied to the first moving space. The method of claim 3, wherein the secondary drying chamber 130,
Hot air introduced into the second moving space through the first moving space of the primary drying chamber 120 is exhausted to the purifying means 200 at portions corresponding to the hot air inflow pipe 121 and the waste inflow pipe 122. An exhaust pipe 131 to be used;
Marine dumping waste land drying apparatus, characterized in that the discharge pipe 132 is formed to discharge the dried waste to the outside. According to claim 1, The stirring blade 150,
Primary stirring blade 151 formed in an oblique line in the longitudinal direction of the inner wall in a state in which a plurality of wings are radially disposed at an inner wall of the primary drying chamber 120, the secondary drying chamber 130 Marine dumping waste, characterized in that it comprises at least one of the secondary stirrer wing 152 formed in an oblique or straight line in the longitudinal direction of the inner wall in a state in which the plurality of wings are radially disposed at regular intervals at Land drying equipment.

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