KR20110006306A - Sludge drying system - Google Patents

Abstract

PURPOSE: A sludge drying machine is provided to rapidly dry all kinds of sludge by using microwave but re-circulate the gas generated from drying the sludge and use the sludge as energy power, thereby rapidly drying the sludge while minimizing the environment pollution. CONSTITUTION: A sludge drying device includes a drying box(110), magnetrons(120), a screw(130), a rotation motor(140). The drying box respectively has a sludge input door in one side and has a sludge discharging door in other side. A plurality of magnetrons is installed in upper surface of drying box and injects microwave to inner side. A screw is installed inside the drying box and stirs and transfers the inputted sludge. The rotation motor rotates the screw. A condenser(150) is installed in one side of the drying box. The condenser inhales the moisture generated from drying and divides the moisture into liquid and gas. After the gas is ionized through thermal plasma generator(160), the gas re-circulates inside the drying box and is used as energy source to dry sludge.

Description

Sludge drying system

The present invention relates to a sludge drying apparatus, and more specifically, to rapidly dry various sludges generated in commercial or industrial using microwaves, in particular, an energy source for drying sludge by recycling gas generated during sludge drying. The present invention relates to a sludge drying apparatus that can be dried more quickly while minimizing environmental pollution.

In general, the sludge drying apparatus is to improve the treatment efficiency whether the sludge generated in various commercial or industrial life to recycle or discard. Conventionally, the drying operation was performed through a hot air drying apparatus, but the time taken to dry the sludge was considerably wasted because the thermal efficiency was not high. Therefore, in recent years, many sludge drying apparatuses using microwaves have been proposed.

A representative one is Utility Model Publication No. 1999-0007786, Republic of Korea Patent Office. It is used to dry the sludge of synthetic resin powder, and the sludge is dried using microwaves.

The sludge drying apparatus scans and microwaves the sludge injected into the apparatus, and the moisture evaporated during drying is forced out through the exhaust port.

In this way, since the sludge is dried using microwaves, a quick drying operation is possible, but a problem arises in the treatment of moisture generated during dry heating. In other words, the moisture forcibly discharged through the exhaust port is a natural liquid or some of the gas containing the odor generated from the sludge. However, if the moisture is forcibly discharged to the outside, it is natural that the environmental pollution of the surroundings due to odors and pollutants are a matter of course, and the working environment is inferior.

Therefore, there is an urgent need for the development of a drying device that can dry sludge quickly while minimizing environmental pollution.

The present invention has been made in order to solve the above problems, while rapidly drying various sludges generated in commercial or industrial using microwave, in particular, an energy source for drying the sludge by recycling the gas generated during the drying of the sludge It is intended to provide a sludge drying apparatus that can be dried more quickly while minimizing environmental pollution.

In order to achieve the above object, the present invention, the sludge input door on one side and the sludge discharge door is provided on the other side, respectively, a plurality of magnetrons installed on the upper surface of the drying cylinder and scanning the microwaves inside, and the drying barrel In the sludge drying apparatus comprising a screw for stirring and conveying the sludge is inserted into the inside and a rotating motor for rotating the screw, one side of the drying vessel is provided with a condenser to suck water vapor generated during drying heating to suck liquid and gas Separating into, the gas is characterized in that it is configured to be used as an energy source to heat the ionized through the heat plasma generator provided on one side and then recycled into the drying vessel to dry the sludge.

Preferably, the screw and a thermal plasma generator are connected to easily recirculate the heated ionized gas into the drying tank through the thermal plasma generator, and the screw shaft is connected to the thermal plasma generator and introduced into the gas to introduce the gas. A seal is formed, and a plurality of injection pipes intermittently provided at the outer periphery of the shaft in communication with the inflow chamber to inject the gas introduced into the drying container is configured to evenly inject the gas into the drying container together with the rotational operation of the screw. It is characterized by.

Preferably, the injection pipe is formed so that the end is cut in an oblique direction to prevent clogging that may be caused by the sludge agitated during the rotation operation of the screw so that the position of the injection hole is located opposite the direction of rotation of the screw It features.

According to the present invention, by rapidly drying various sludges generated in commercial or industrial, etc. using a microwave scanning from the magnetron, in particular, the gas containing odor from the steam generated during drying of the sludge is separated from the condenser It is recycled through the plasma generator and used as an energy source for drying the sludge, so that a great efficiency can be obtained, thereby minimizing environmental pollution.

Hereinafter, the sludge drying apparatus of the present invention will be described in detail with reference to the accompanying drawings.

Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the ordinary or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

1 is a perspective view of a sludge drying apparatus according to a preferred embodiment of the present invention, Figure 2 is a schematic view taken along the line A-A of Figure 1 according to a preferred embodiment of the present invention.

1 and 2, the sludge drying apparatus 100 of the present invention is largely drying vessel 110, magnetron 120, screw 130, rotation motor 140, condenser 150 and thermal plasma The generator 160 is configured.

First, a drying chamber 111 is formed inside the drying container 110, and an input door 112 for injecting sludge is provided at one upper surface thereof, and the other side lower side may discharge the dried sludge to the outside. Discharge door 114 is provided, the discharge port 116 for discharging the moisture generated during drying, that is, water vapor is formed on one side. In this case, although not shown in the input door 112 and the discharge door 114, it is preferable to install an electromagnetic shielding gasket or an electromagnetic wave shielding device between each of the doors 112 and 114 and the drying container 110 so that microwaves do not leak. .

In addition, although not shown, it is preferable to form a transparent window on one side wall of the drying container 110 so as to monitor the drying situation, when a transparent window is formed, this also provides a shielding gasket for blocking the leakage of microwaves. It is preferable to provide.

Next, the magnetron 120 is to be installed on the upper surface of the drying cylinder 110, a plurality of the scanning chamber is provided to dry the sludge by scanning the microwave 111, the magnetron 120 is a variety of industries Since it is widely used in the field, a separate description will be omitted.

Next, the screw 130 is rotatably installed on both sidewalls of the drying barrel 110, it consists of a shaft 132 and the transfer blade 134 formed in a spiral shape on the shaft, for this This will be described later.

Next, the rotation motor 140 is provided on one side of the drying cylinder 110 to generate power to rotate the screw 130, is connected to the screw shaft 132 and the belt or chain.

Next, the condenser 150 is provided on one side of the drying barrel 110, is connected through the outlet 116 and the conduit 152 of the drying container 110 to suck the steam generated during the drying of the sludge By separating and discharging the liquid and gas, and because it is also widely used in industrial sites, a separate description will be omitted. At this time, the liquid separated from the condenser 150 is safely stored in a separate storage container not shown to be processed.

Finally, the thermal plasma generator 160 is provided on one side of the condenser 150, the gas separated from the condenser 150 is supplied through the conduit 154, heated and ionized, and then inside the drying container 110. It is provided to recycle to, and is connected to the shaft 132 of the screw 130 to recycle the gas via the shaft 132. Of course, it may be directly connected to the drying barrel 110 and the thermal plasma generator 160 so that the heated and ionized gas flows directly into one side of the drying vessel 110, but the gas is not evenly sprayed inside the drying vessel 110. Therefore, it is preferable to recycle by spraying through the screw 130.

The thermal plasma generator 160 is widely known as a device for converting a large amount of thermal energy that can be used for the application and reduction of the object to be treated using electrical energy.

On the other hand, the screw shaft 132 connected to the thermal plasma generator 160 is connected through a conduit 162 extending from the thermal plasma generator 160, but the sleeve, that is, a couple so that the gas can be stably supplied even during rotation operation. It is connected via a ring 164.

At this time, the conduit 150 and the heat plasma generator 160 and the screw shaft 132 connecting the condenser 150 and the thermal plasma generator 160 to forcibly recycle the gas separated from the condenser 150. Although not shown in the conduit 162 for connecting the circulating pump as is well known by the forced circulation is also considered.

And, one side of the drying tank 110 is provided with a control unit 170 for controlling the operation of the rotating motor 140, the condenser 150 and the thermal plasma generator 160.

Now, the following is connected to the thermal plasma generator 160 to examine the detailed configuration of the screw 130 to recycle the gas into the drying container 110 and to transport and stir the sludge, and then to the operating relationship Let's explain.

"A" in Figure 3 is a schematic cross-sectional view of the screw according to a preferred embodiment of the present invention, "I" is a cross-sectional view B-B line of "ga".

First, referring to the "ga", the screw 130 is intermittently in the outer periphery of the shaft 132, the feed wing 134 is provided in a spiral shape on the outer periphery of the shaft 132 and the shaft 132 It is composed of a spray pipe 136 is provided, the shaft 132 is the inlet chamber 133 opened to one side to transfer the gas discharged from the above-described thermal plasma generator 160 into the drying tank 110 inside. Is formed, the injection pipe 136 provided on the outer periphery is in communication with the inlet chamber 133 to inject the gas introduced into the inlet chamber 133 into the drying tank 110.

At this time, the end of the injection pipe 136 can be seen that the inclination is cut in the oblique direction, as shown in the partially enlarged view of "b", this inclined surface is formed on the opposite side of the rotation direction of the shaft 132 . That is, if the shaft 132 is rotated to the left counterclockwise direction is formed to cut from the upper left to the lower right of the injection pipe 136, which is the injection hole 137 of the injection pipe 136 is the rotation of the shaft 132 As it is positioned in the opposite direction to prevent the phenomenon of being blocked by the sludge is implemented so that the gas can be smoothly injected into the drying tank 110, its operation relationship will be described again below.

"A" in Figure 4 is a schematic longitudinal cross-sectional view showing the operation of the sludge drying apparatus according to an embodiment of the present invention, "I" is a cross-sectional view taken along the line C-C.

First, referring to "a", the input door 112 formed on one side of the top surface of the drying container 110 is opened, and the sludge collected in the commercial or industrial sludge (ie, the drying chamber 111) inside the drying container 110 ( 200). Thereafter, the closing door 112 is closed and sealed, and the magnetron 120 is operated to scan the microwave into the drying chamber 111 and rotate the screw 130 through the control of the rotation motor 140. Then, the sludge 200 introduced into the drying chamber 111 is gradually transferred to the other side while being stirred by the rotational operation of the screw 130.

Meanwhile, the microwave injected from the magnetron 120 penetrates the sludge 200 and evaporates moisture to dry it. In this process, the vapor evaporates the outlet 116 provided at one side of the drying container 110. Through the condenser 150. At this time, it is natural that the vapor evaporated from the sludge 200 contains a part of gas containing odor along with a large amount of water.

Subsequently, the water vapor collected by the condenser 150 is separated into a liquid and a gas by a condensation action, and the liquid is stored in a reservoir provided separately, although not shown, and the gas is introduced into the thermal plasma generator 160 to be heated and ionized. And flows into the inflow chamber 133 formed on the shaft 132 of the screw 130 connected through the conduit 162.

The gas introduced into the inlet chamber 133 is recycled into the drying chamber 110 along the inlet chamber 133 and is injected into the drying chamber 111 through the injection pipe 136 connected to the inlet chamber 133 and stirred. And it is used as an energy source for heating the sludge to be transported, as shown in "b", the gas introduced into the inlet chamber 133 formed on the screw shaft 132 is the injection pipe 136 provided on the outer periphery It is injected into the drying chamber 111 through.

At this time, the end of the injection pipe 136 is cut in an oblique direction so that the injection hole 137 is located in the opposite direction of the rotation of the shaft 132, the injection hole 137 is not formed during the rotation operation of the shaft 132 Since the surface is rotated by hitting the sludge 200 first, it is possible to prevent the phenomenon that the injection hole 137 is blocked by the sludge 200, it is possible to inject a gas stably and continuously.

The sludge 200 dried by the drying process is transferred along the screw 130 and positioned on the discharge door 114, and is discharged to the outside by the opening operation of the discharge door 114.

And, although not shown, it is to be appreciated that when the screw 130 is rotated by introducing hot water instead of gas into the inlet chamber 133 of the screw shaft 132, the inside of the drying vessel 110 may be washed.

Therefore, since the gas separated from the water vapor generated when the first sludge 200 is dried is also recycled to the drying tank 110 and used as an energy source together with the microwave, the sludge 200 is faster by a dual energy source. Will be dried. In addition, since the gas containing the odor does not leak to the outside it is possible to minimize environmental pollution.

The foregoing has outlined rather broadly the features and technical advantages of the present invention in order to better understand the claims of the invention which will be described later. Additional features and advantages that constitute the claims of the present invention will be described in detail below. It should be appreciated by those skilled in the art that the disclosed concepts and specific embodiments of the invention can be used immediately as a basis for designing or modifying other structures to accomplish the invention and similar purposes.

In addition, such modifications or altered equivalent structures by those skilled in the art as a basis for modifying or designing the structures and embodiments of the invention disclosed in the present invention to other structures for carrying out the same purposes of the present invention are patents Various changes, substitutions and changes may be made without departing from the spirit or scope of the invention as set forth in the claims.

1 is a perspective view of a sludge drying apparatus according to an embodiment of the present invention.

2 is a schematic view taken along the line A-A of Figure 1 in accordance with a preferred embodiment of the present invention.

"A" in Figure 3 is a schematic cross-sectional view of the screw according to a preferred embodiment of the present invention, "I" is a cross-sectional view taken along line B-B of "A".

"A" in Figure 4 is a schematic longitudinal cross-sectional view showing the operation of the sludge drying apparatus according to an embodiment of the present invention, "I" is a cross-sectional view taken along line C-C of "A".

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

100: sludge drying apparatus 110: drying container

111: drying chamber 112: input door

114: discharge door 116: outlet

120: magnetron 130: screw

132: axis 133: inlet chamber

134: feed wing 136: injection pipe

137: injection hole 140: rotating motor

150 condenser 152154

160: thermal plasma generator 162: pipeline

164 coupling 170 control unit

Claims (3)

A drying tank each provided with a sludge inflow door on one side and a sludge discharge door on the other side, a plurality of magnetrons installed on the upper surface of the drying container to scan microwaves into the inside, and a screw for stirring and transporting the sludge installed in the drying container And a rotating motor for rotating the screw. One side of the drying vessel is provided with a condenser to suck water vapor generated during drying heating to separate the liquid and gas, the gas is heated and ionized through the heat plasma generator provided on one side and recycled into the drying vessel inside the sludge Sludge drying apparatus, characterized in that configured to be used as an energy source to dry. The method of claim 1, Connect the screw and the thermal plasma generator to easily recycle the heat ionized gas into the drying vessel through the thermal plasma generator, The screw shaft is connected to the thermal plasma generator and an inlet chamber is formed therein to introduce the gas, and the outer periphery of the shaft communicates with the inlet chamber to intermittently inject a plurality of injection pipes for injecting the gas into the drying vessel. Sludge drying apparatus, characterized in that configured to evenly spray the gas inside the drying container with a rotating operation of the screw. 3. The method of claim 2, The injection pipe is characterized in that the end is cut in the diagonal direction to prevent clogging that may be caused by the sludge agitated during the rotation operation of the screw so that the position of the injection hole is located opposite the rotation direction of the screw Sludge drying equipment.

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