KR101155126B1 - burning appratus of waste scagliola - Google Patents

Abstract

PURPOSE: A waste artificial marble firing system is provided to effectively recycling disabled tub marble by removing impurities from filler mixing solid material and assorting fillers only. CONSTITUTION: A waste artificial marble firing system comprises a firing furnace(100) and a rotating unit. The kiln has a cylindrical shape which both sides are closed. The kiln comprises a raw material inlet(110) which the filler mixing solid material puts into, an oxygen inlet(120) which oxygen flows from outside, a burner which provides flames in order to burn the filler mixing solid material, an outlet in which the filler in which impurities are removed is exhausted, and an exhaust port which discharges gas generated during a co-firing process.

Description

Burning appratus of waste scagliola}

The present invention relates to a waste artificial marble calcining apparatus for removing impurities from the filler mixed solids in the process of processing the waste artificial marble to recover, recycle and recycle the raw materials used in the manufacture of artificial marble.

With the pursuit of high-quality and comfortable buildings, artificial marble (scagliola) has gained much attention as a building material. Artificial marble refers to an artificial composite in which natural ores or minerals are mixed with a resin component or cement, and various pigments and additives are added to realize the texture of natural marble.

Currently, organic artificial marble which is mixed with acrylic resin (organic substance) called MMA (Methyl Methacrylane) and inorganic filler is widely used, and the mixing ratio is 30-45 wt% of MMA and 45-65 wt% of inorganic filler. The additive consists of the remaining weight percent. As inorganic fillers, aluminum hydroxide, which has good properties for improving the strength and wear resistance of artificial marble, is mostly used.

Artificial marble is processed to the required size after manufacture and is used as various functional products such as sinks, sinks, kitchen tops, counters, tables, and interiors of public buildings. Dust and scrap are generated during processing. Due to the many advantages of artificial marble, the annual increase in production has led to a surge in the emissions of dust and scrap generated during processing and the waste of artificial marble discarded after use.

However, since most of the artificial marble is currently treated as a site waste and simply disposed of, it is not only low in cost, but also causes environmental problems such as soil pollution, and also creates a social problem of continuously securing a new landfill. .

According to the present invention for solving the conventional problems as described above, it is possible to separate the filler only by removing impurities from the filler mixed solids extracted by decomposing the waste artificial marble, resulting in more efficient recycling of the filler from the waste artificial marble Accordingly, to provide a waste artificial marble calcining apparatus that can prevent the environmental pollution caused by the disposal of the waste artificial marble, and can increase the effect of reducing the waste of resources caused by the recycling of resources.

The present invention for achieving the above object is to regenerate the filler mixed solids separated in the process of pyrolyzing the recycled raw material in the form of dust or granules to regenerate the filler with impurities removed, in the shape of a cylinder shielded on both sides A raw material inlet through which the filler mixed solid is introduced and an oxygen inlet through which oxygen is introduced from one side are formed on one side, and a burner providing a flame to burn the filler mixed solid supplied to the raw material inlet is provided and fired on the other side. A process of forming a discharge port for discharging the filler is removed from the impurities, a firing furnace formed with an exhaust port through which the gas generated during the firing process is discharged, and is mounted to surround the outer side of the firing furnace, mixing the filler inside the firing furnace It includes a rotary unit for rotating the firing furnace so that solids are heated evenly To provide a waste artificial marble firing apparatus.

According to the present invention, it is possible to separate impurities from the filler mixed solids extracted by decomposing various types of waste artificial marble, so that only the filler can be separated. As a result, the filler is more efficiently regenerated from the waste artificial marble. It is possible to prevent the environmental pollution caused by waste disposal and to reduce the waste of resources caused by the recycling of resources.

In addition, according to the present invention, the filler mixed solids may contain oil in the process of pyrolyzing the recycled raw material, and may be fired by self-ignition without an external heat source after the initial ignition, thereby saving energy.

1 is a schematic view of a waste artificial marble firing apparatus according to the present invention,
Figure 2 is a perspective view of the firing furnace of Figure 1,
3 is a cross-sectional view of the firing furnace of FIG. 2.

Hereinafter, with reference to the accompanying drawings will be described in more detail the configuration and operation of the waste artificial marble firing apparatus of the present invention.

1 is a schematic view of a waste artificial marble firing apparatus according to the present invention, Figure 2 is a perspective view showing the firing furnace of Figure 1, Figure 3 is a cross-sectional view of the firing furnace of FIG.

The waste artificial marble firing apparatus of the present invention is for regenerating the filler mixed solids separated in the process of pyrolysing the recycled raw material in the form of dust or granules and regenerating the fillers from which impurities have been removed. A raw material inlet 110 into which the filler mixed solid is introduced and an oxygen inlet 120 into which oxygen flows from the outside are formed, and a burner providing a flame to burn the filler mixed solid supplied to the raw material inlet 110 ( 130 is provided, and the firing process 100 is formed on the other side through the calcination process discharge outlet 140 is discharged the filler is removed, the exhaust port 150 is discharged to the gas generated in the firing process on the upper side (100) And, it is mounted so as to surround the outside of the firing furnace 100, the firing furnace 100 so that the filler mixed solids inside the firing furnace 100 is evenly heated. It includes a rotation unit 200 of former.

First, the firing furnace 100 has a cylindrical shape as a whole, is arranged in a tunnel type, both sides are shielded by the side walls (101, 102). Among the side walls (101, 102), the front side wall (101) that shields the relatively front of the kiln 100, the raw material inlet 110 to which the filler mixed solid is introduced, and the oxygen inlet (120) into which oxygen flows from the outside. Is formed, a burner 130 is provided with a flame to burn the filler mixed solids supplied to the raw material inlet 110 is provided. As described above, the raw material inlet 110 and the burner 130 are formed on the same surface to allow the filler mixed solids injected into the raw material inlet 110 to be immediately ignited and combusted.

On the other hand, the rear side wall 102 that shields the rear of the kiln 100 is formed in the outlet 140 through which the filler is removed through the firing process discharged, the upper portion of the kiln 100 generated during the firing process An exhaust port 150 through which gas is discharged is formed.

When the firing process of the filler mixture solid proceeds in the firing furnace 100 as described above, first the burner 130 is operated to increase the temperature inside the firing furnace 100 to 500 ~ 1000 °. When the temperature conditions as described above are satisfied, the filler mixed solids are introduced through the raw material inlet 110, and the burner 130 is continuously operated to ignite and burn as soon as the filler mixed solids are input. Then, when the temperature inside the firing furnace 100 is 1000 ° or more, and the temperature of the filler mixed solids combusted reaches 600 to 800 °, the burner 130 is stopped, and the oil contained in the filler mixed solids itself is removed. It becomes a fuel and fires. The control of the burner 130 may be a manual control method or an automatic control method using a temperature measuring sensor.

 The rotary unit 200 is mounted to surround the outside of the firing furnace 100, and serves to rotate the firing furnace 100 so that the filler mixed solids inside the firing furnace 100 are evenly heated. The rotating unit 200 may be applied to a variety of known rotating means in a range capable of rotating the firing furnace 100 at a uniform speed. When the kiln 100 is rotated by the action of the rotary unit 200 as described above, the temperature inside the kiln 100 can be changed stably and uniformly, and the filler mixture solids burned therein are also mixed with each other and burned. Filler mixed solids in the kiln 100 may be calcined evenly.

According to a preferred embodiment of the present invention, the firing furnace 100 has a plurality of through-holes 161 penetrating the inside and the outside in the form of a hollow tube on both sides is formed, one side is connected to the oxygen inlet 120 The other side is further provided with an oxygen supply pipe 160 extending into the firing furnace 100 to allow the air introduced into the oxygen inlet 120 to be evenly supplied to the firing furnace 100.

The oxygen supply pipe 160 is for the same form as the communication, and provides a path so that one side is connected to the oxygen inlet 120 and the air introduced to the deep side of the firing furnace (100). Therefore, the length of the oxygen supply pipe 160 is made short or similar to the length of the firing furnace 100, and forms a plurality of through-holes 161 penetrating the inside and the outside of the oxygen supply pipe 160 to the oxygen supply pipe The oxygen flowed into the through-holes 161 may be supplied to the inside of the firing furnace 161 to provide a stable oxygen supply to the firing furnace 100 without deviation.

According to a preferred embodiment of the present invention, the firing furnace 100 has a form inclined to one side so that the filler is removed from the impurities through the firing process automatically toward the outlet 140 by its own weight.

In order to incline the kiln 100 as described above, the front and rear heights of the frame supporting the kiln 100 may be set differently. That is, the front of the recycled raw material is formed relatively high, and the height of the rear is formed to be low when firing is completed and the filler from which impurities are removed is discharged. Therefore, the filler, in which impurities are removed while burning in the kiln 100, may be automatically transferred to the outlet 140 along the inclination of the kiln 100. In addition, since the firing furnace 100 is in a rotating state, the filler may be automatically transferred sequentially without any phenomenon of stagnation in any one of the interior of the firing furnace 100.

According to a preferred embodiment of the present invention, the storage tank 300 for storing the filler mixed solids, and the transport pipe for transferring the filler mixed solids of the storage tank 300 to the raw material inlet 110 of the firing furnace 100 30 and a fixed quantity screw 40 installed inside the transfer pipe 30 to transfer the filler mixed solid material at a regular speed and to feed the raw material inlet 110.

First, the storage tank 300 is a concept of a hopper for storing and supplying the filler mixed solids, an agitator for mixing the stored filler mixed solids may be installed therein, and discharge the generated gas to the outside The gas exhaust device may be mounted. In addition, the transfer pipe 30 transfers the filler mixed solids of the storage tank 300 to the raw material inlet 110 of the firing furnace 100, and transfers the filler mixed solids at a regular speed therein. The dosing screw 40 is placed into the inlet 110 is disposed. That is, the filler mixed solids are quantitatively transferred by the screw 40 rotating inside the transfer pipe 30 and introduced into the firing furnace 100 through the raw material inlet 110.

According to a preferred embodiment of the present invention, the cooling unit 400 for cooling the filler from which impurities discharged from the kiln 100 is removed is further included. Since the fillers from which the impurities discharged from the kiln 100 are removed are at a high temperature, storage and management are not easy. Therefore, in order to more reliably store and package the filler after the firing process, the cooling unit 400 is provided to cool. The cooling unit 400 may be used to preheat the filler mixed solids stored in the storage tank 300 by recovering the waste heat of the filler to be sent to the storage tank (300).

According to a preferred embodiment of the present invention, the rotation unit 200 is an annular inner frame 210 is fixed while wrapping the outer side of the firing furnace 100, and the inner frame (210) to be idling with the inner frame (210) The outer frame 220 is fixed to the outside of the 210 to support the firing furnace 100 and the rotary drive unit 230 is connected to the firing furnace 100 to provide a rotational force to the firing furnace 100.

The inner frame 210 and the outer frame 220 are coupled to be idle such as a bearing. The inner frame 210 is fixed to surround the outer side of the firing furnace 100 and rotates at the same time as the firing furnace 100, and the outer frame 220 supports the inner frame 210 and the firing furnace 100. Do it.

In another case, a plurality of annular inner frames 210 may be fixed to the outside of the firing furnace 100 for each section. Gears are processed on the outer surface of some of the inner frame 210 of the plurality of inner frame 210, the inner frame 210 is connected to the rotating shaft of the motor to rotate in engagement with the rotating drive gear, such action The firing furnace 100 is rotated, on the other hand, the surface of the remaining inner frame 210 is not processed gear is smooth, the inner frame 210 is in contact with the inner frame 210 to rotate the roller It is supported by, as a result the roller is to support the rotation of the firing furnace (100).

According to a preferred embodiment of the present invention, a purifying furnace 510 connected to the exhaust port 150 to remove odors of the exhaust gas and a high-temperature exhaust gas from which the odor is removed from the purifying passage 510 are discharged. And a heat exchanger 520 for performing heat exchange to recover the high heat of the gas, and a dust collector 530 for filtering foreign substances of the exhaust gas from which the heat exchange is completed by the heat exchanger 520 and releasing them to the atmosphere.

As described above, the exhaust gas discharged from the kiln 100 has a high temperature, and when it is recycled, energy can be saved. The purification furnace 510 is installed to remove odors of the gas discharged from the exhaust port 150, and in the case of the heat exchanger 520, the high temperature exhaust gas from which the odor is removed is recovered to recover high heat of the exhaust gas. To be installed. The heat exchange unit 520 may be a variety of known heat exchange methods that can recover the waste heat to the exhaust gas, the gas cooled through the heat exchange unit 520 is filtered after the foreign matter is collected in the dust collector 530. Is released into the atmosphere.

According to a preferred embodiment of the present invention, the heat exchange unit 520 is cooled to discharge the exhaust gas passing through the boiler 521 and the boiler 521 to recover the heat of the exhaust gas to generate hot water to the atmosphere. Cooler 522 to be included.

The boiler 521 passes a fluid therein, and the fluid absorbs heat of exhaust gas discharged from the exhaust port 150 and is heated. The heated fluid can be used for preheating the recycled raw materials. As described above, the exhaust gas passing through the boiler 521 is cooled similarly to room temperature through the cooler 522, and after the foreign matter is filtered out of the dust collector 530, it is discharged into the atmosphere.

Hereinafter, the firing process of the filler-mixed solid according to an embodiment of the present invention waste artificial marble firing apparatus as described above is as follows.

First, the filler mixed solids supplied through the pyrolysis apparatus may be stored in a service tank serving as a buffer and then transferred to the kiln 100. The solid material in which the filler and some resins are mixed is fired by the kiln 100 having a structure capable of oxidizing 100% of the solid material in which the filler and the some resin agent are mixed. When the oil content of the filler mixed solids is 8% to 15% via the pyrolysis apparatus, the firing furnace 100 is heated and stopped only by the burner 130 to the initial ignition temperature of the filler mixed solids.

For example, when the internal temperature of the firing furnace 100 is 1000 ° C. or more and the internal temperature of the filler mixed solid reaches 600 ° C. to 800 ° C., the burner 130 is stopped. Thereafter, the filler mixed solids are fired by self-heating by the oil. As such, the filler mixed solid may be calcined by self-heating by oil without an external heat source, and thus may have an energy saving effect. The calcined filler, such as alumina, is cooled through the cooling unit 400 and then stored in the filler storage tank.

Meanwhile, the gas generated in the kiln 100 and exhausted through the hood has a temperature of 700 ° C. to 1000 ° C. and may be used to recycle energy. First, the exhaust gas discharged from the kiln 100 may be purged. ) To remove odors. Thereafter, the boiler 521 is passed through to recover heat of the exhaust gas. At this time, the fluid passing through the boiler 521 is heated by receiving the heat of the exhaust gas. The heated fluid can be used for preheating the recycled raw materials. The exhaust gas passing through the boiler 521 has a temperature of 300 ° C to 450 ° C. The exhaust gas having such a temperature may be passed through another boiler to recover the heat of the exhaust gas secondaryly, wherein the water passing through the boiler is heated by receiving the heat of the exhaust gas. The heated water can be supplied to a hot water tank. The water supplied to the hot water tank may be used for heating or domestic hot water. As described above, the exhaust gas passing through the boiler 521 has a temperature of 150 ° C. to 300 ° C., and the heat of the exhaust gas having such a temperature is supplied to a dryer for drying the waste artificial marble in the form of a wet dust to form a wet dust form. It can be used to dry waste artificial marble. Thereafter, the exhaust gas is discharged through the chimney 530 to the atmosphere through the chimney. Accordingly, air pollution can be prevented.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation and that those skilled in the art will recognize that various modifications and equivalent arrangements may be made therein. It will be possible. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

30: transfer pipe 40: fixed screw
100: firing furnace 110: raw material inlet
120: oxygen inlet 130: burner
140: outlet 150: exhaust
160: oxygen supply pipe 161: through hole
200: rotating unit 210: inner frame
220: outer frame 230: rotary drive unit
300: storage tank 400: cooling unit
510: purification furnace 520: heat exchange unit
521: boiler 522: cooler
530: dust collector

Claims (8)

In the waste artificial marble calcining apparatus for firing the filler mixed solids separated in the process of pyrolyzing the recycled raw material in the form of dust or granules and regenerated into fillers free of impurities,
A burner providing a flame to combust the filler mixed solids supplied to the raw material inlet, and a raw material inlet through which the filler mixed solids are introduced and an oxygen inlet from the outside are formed on one side in a cylindrical shape shielded at both sides. Is provided, while the other side through the firing process to form an outlet for discharging the filler to remove impurities, an exhaust port for discharging the gas generated in the firing process is formed on the upper side, both sides inside the form of a hollow tube A firing furnace formed with a plurality of through-holes penetrating through the outside and having one side connected to the oxygen inlet and the other side extending into the firing furnace so that air introduced into the oxygen inlet can be supplied evenly to the firing furnace;
And a rotation unit mounted to surround the outside of the firing furnace and rotating the firing furnace so that the filler mixed solids inside the firing furnace are evenly heated. delete According to claim 1, The firing furnace
Waste artificial marble calcining apparatus characterized in that it takes a form inclined to one side so that the filler is removed from the impurities through the calcination process automatically in the direction of the discharge port. The method of claim 1,
A storage tank for storing the filler mixed solids;
A transfer pipe for transferring the filler mixed solids of the storage tank to a raw material inlet of the firing furnace;
And a fixed quantity screw installed at the inside of the transfer pipe to transfer the filler mixed solid material at a regular speed and into the raw material inlet. The method of claim 1,
Waste artificial marble firing apparatus further comprises a cooling unit for cooling the filler is removed from the firing furnace. The method of claim 1, wherein the rotating unit
An annular inner frame fixed while surrounding the outer side of the firing furnace;
An outer frame fixed to the outside of the inner frame to idle with the inner frame to support the firing furnace;
And a rotary drive unit connected to the firing furnace to provide a rotational force to the firing furnace. The method of claim 1,
A purifying furnace connected to the exhaust port to remove odor of exhaust gas;
A heat exchanger configured to receive a high-temperature exhaust gas from which the odor is removed from the purification furnace and perform heat exchange to recover high heat of the exhaust gas;
And a dust collecting part for filtering foreign substances of exhaust gas from which heat exchange is completed in the heat exchange part and discharging them into the atmosphere. The method of claim 7, wherein the heat exchange unit
A boiler for recovering heat of the exhaust gas to generate hot water;
And a cooler for cooling the exhaust gas passing through the boiler to be discharged into the atmosphere.

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