WO2011090260A2

WO2011090260A2 - Device for continuously manufacturing activated carbon

Info

Publication number: WO2011090260A2
Application number: PCT/KR2010/007667
Authority: WO
Inventors: 김신철
Original assignee: 신광화학공업주식회사
Priority date: 2010-01-22
Filing date: 2010-11-02
Publication date: 2011-07-28
Also published as: KR20100018008A; WO2011090260A3; CN102844270A; KR101070636B1

Abstract

The present invention relates to a device for continuously manufacturing activated carbon, and more particularly, to a device for continuously manufacturing activated carbon which is capable of manufacturing high-quality activated carbon by improving the heat supply structures and heat circulation structures of a kiln furnace for carbonization and a kiln furnace for activating gas, wherein the kiln furnace consists of a continuous kiln device widely used as a device for manufacturing activated carbon, to thereby stabilize the internal temperature of the continuous kiln device within the shortest amount of time and with a minimum amount of fuel gas.

Description

Continuous activated carbon manufacturing device

The present invention relates to a continuous activated carbon production apparatus, and more particularly, a heat supply structure and a thermal circulation structure of a carbonization kiln and a gas activation kelon, which constitute a continuous kiln apparatus widely used as an activated carbon production apparatus. Improve,

The present invention relates to a continuous activated carbon production apparatus capable of producing high quality activated carbon by stabilizing the internal temperature of the continuous kiln apparatus in the shortest time with the least fuel gas.

In general, in urban areas where various material civilizations are developed by industrialization, population concentrations and various facilities are concentrated, and the air pollution caused by environmental pollution is seriously contaminated, and there are many risks to the health of many people living in urban areas. ,

Many air purification technologies have been developed to remove various harmful substances contained in the air.

In particular, various types of activated carbon have been developed as the ability of activated carbon to purify the surrounding air by adsorbing various harmful substances that are not beneficial to the human body in porous carbon crystals.

In the manufacturing process of activated carbon using gas activation method, which is the most commonly used gas, the organic material, which is the raw material of activated carbon, is heated in the range of 600 to 800 ° C, and the volatile tissues contained in the organic material are burned and the carbon crystals are formed into carbides. Carbonization process to produce charcoal),

The charcoal to which a gas catalyst such as steam gas (water vapor) is added may be classified into an activation process of reheating the carbonized carbon in the range of 800 to 1100 ° C. to generate fine porous adsorbed carbon.

Most of the activated carbon using the gas activation method as described above is a general kiln device having a known structure [combustion gas supply unit, raw material inlet, carbonization kiln, and activation kiln to generate activated carbon by gas activation by adding a gas catalyst. Furnace, consisting of a gas outlet, etc.].

On the other hand, it is well known that activated carbon having good adsorption should have a larger surface area per unit area by forming more voids on the outer surface of the carbide without destroying the structure of the carbon crystals.

In order to manufacture high quality activated carbon, the interior of the first kiln furnace for carbonization and the second kiln furnace for gas activation, which constitute the kiln apparatus, must be maintained at a constant temperature. Sufficient preheating process will necessarily be required.

In addition, in order to manufacture activated carbon using the kiln apparatus, the length of the furnace is constant so that a large amount of activated carbon can be simultaneously heated due to the characteristics of the carbonization kiln furnace and the gas activation kiln furnace, in which the internal temperature must be maintained at a high temperature. It is generally composed of more than scale.

However, in the case of a heating furnace and a gas activating furnace constituting a conventional continuous kiln device, the inlet of the combustion gas capable of heating the internal temperature thereof is formed in only one of the bars.

As a long time and combustion gas are consumed from the preheating step for maintaining the entire inside of the furnace having a long length at a constant temperature, there is a problem in that productivity and economy are inferior.

In some, the activated carbon is manufactured from rapidly heated carbide by supplying a large amount of fuel gas to the furnace without the preheating process.

The voids formed in the carbide produced in a state in which the internal temperature of the furnace was uneven were formed unstable, which caused a problem of degrading the quality of activated carbon.

On the other hand, the kiln for carbonization which constitutes the carbonization apparatus which extracts carbide which becomes a raw material of activated carbon,

Unlike a general continuous kiln device in which a gas activation kiln furnace for extracting porous activated carbon by reacting the carbide with a gas catalyst is separated into a separate configuration, in recent years, a carbonization process and gas by a carbonization furnace using only gas activation furnace Various types of kiln devices using a single type of furnace capable of simultaneously performing a gas activation process by an activation furnace have been proposed in the prior art.

However, as above, each kiln device using a single type of furnace cools carbides extracted from one furnace, some of them are used as ignition charcoal, and others are raw materials of activated carbon. It is supplied to (iii) and made into activated carbon through reheating,

This is because a lot of fuel gas must be newly supplied to raise the cooled carbide to a high temperature, there is a problem that unnecessary fuel is to be injected.

On the other hand, the exhaust gas emitted through a conventional general kiln device contains various pollutants harmful to the bar,

Various contaminants contained in the exhaust gas were scattered in the air, and thus there were many harmful to human health.

The first object of the present invention for solving the above problems is to provide a structure in which the combustion heat supplied to the first kiln for carbonization and the second kiln for gas activation is simultaneously supplied from both ends of each kiln furnace in the shortest time. It is to implement a continuous activated carbon production apparatus that can improve productivity and produce high quality activated carbon by reducing the preheating process to keep the internal temperature of each kiln constant.

Another object of the present invention is to provide a structure in which the heat of combustion supplied to the first kiln for carbonization and the second kiln for gas activation circulates inside each kiln, thereby minimizing the consumption of combustion gas. It is to implement a continuous activated carbon production apparatus that can reduce fuel costs.

Still another object of the present invention is to provide a continuous activated carbon production apparatus capable of minimizing the scattering of exhaust gases discharged to the outside by providing an exhaust gas aggregation structure in the waste heat recovery unit.

It will be described in more detail the means for achieving the above object.

Continuous activated carbon production apparatus according to the present invention

A raw material hopper 100 in which the organic material raw material 110 serving as a raw material of the activated carbon is stored;

Raw material inlet 220 and both ends of the first frame 210 through which the inner circumferential surface is made of refractory material and penetrated therein;

The first combustion heat inlet 230 is provided with the combustion heat having a temperature range of 600 ~ 800 ℃, respectively,

In a position adjacent to the raw material inlet 220 and the first combustion heat inlet 230, a separate transport pipe 240 and a carbide discharge port 250 are respectively provided,

A first kiln for carbonization (200) for forming a carbide (280) in the inner space portion (260) of the first frame (210), wherein the transport means (270) of the organic material (110) is formed;

Ventilation holes 320 and both ends of the second frame 310 through which the inner circumferential surface is made of refractory material and penetrated therein;

The second combustion heat inlet 330 is formed to penetrate the transfer pipe 240 and provide combustion heat having a temperature range of 800 to 1100 ° C., respectively.

Carbide inlets 340 and activated carbon outlets 350 penetrating through the carbide outlets 250 are disposed at positions adjacent to the ventilation hole 320 and the second combustion heat inlet 330, respectively.

The second kiln furnace for gas activation to form a porous activated carbon 380 is formed in the inner space portion 360 of the second frame 310 to form a separate transport means 370 for transporting the carbide 280 ( 300);

An exhaust gas collection pipe 420 penetrating the ventilation hole 320 is formed at the center of the side of the body 410, the inside of which is sealed.

The reflux tube 430, one end of which penetrates the first combustion heat inlet 230, protrudes from the upper portion,

The exhaust gas agglomeration tube 440 is installed at a lower portion of the body 410 by passing through the bottom surface, and a waste heat recovery part 400 in which a separate refrigerant 450 is filled in the outer circumferential surface of the exhaust gas agglomeration tube 440. ): Consists of a combination of.

The present invention as described above has the advantage of improving the productivity by shortening the preheating process time by the improvement of the heat supply structure,

By improving the thermal circulation structure to the circulation type, it is possible to reduce fuel costs by minimizing the consumption of combustion gas.

By aggregating the exhaust gas to minimize the scattering of the exhaust gas to improve the surrounding environment, such a great effect appears.

1 is an overall coupling view showing the assembled state of the present invention

2 is a view illustrating an activated carbon generation route sequentially illustrating an activated carbon generation process of the present invention;

3 is a combustion gas supply path diagram showing a combustion gas supply form of the present invention;

4 is an activated carbon manufacturing process according to the present invention

◎ Description of the sign ◎

100: raw material hopper

110: organic material raw material

200: first kiln for carbonization

210: first framework

220: raw material inlet

230: first combustion heat inlet

240: transfer pipe

250: carbide outlet

260,360: Space

270,370: transfer means

280: carbide

300: the first kiln for gas activation

310: first frame 320: ventilation hole

330: second combustion heat inlet

340: carbide inlet

350: activated carbon outlet

380 activated carbon

400: waste heat recovery unit

410: body

420: exhaust gas collection pipe

420: reflux tube

440: exhaust gas discharge pipe

450: refrigerant

On the basis of the accompanying drawings an embodiment of the present invention showing the configuration and effects as described above will be described in more detail.

1 is an assembly of a raw material hopper 100, a carbonization first kiln 200, a gas-activated second kiln 300 and the waste heat recovery unit 400 constituting the continuous activated carbon production apparatus of the present invention Is the overall degree of coupling showing the state,

FIG. 2 is an activated carbon production path diagram sequentially illustrating a process of generating activated carbon of the present invention, and FIG. 3 is a combustion gas supply path diagram illustrating a supply mode of the combustion gas of the present invention.

Continuous activated carbon production apparatus of the present invention, as shown in Figure 1, the raw material hopper 100 is stored organic raw material 110 corresponding to the raw material of the activated carbon, and

A first kiln for carbonization (200) for heating the organic material (110) in a range of 600 to 800 ° C. to produce carbides 280 organized into carbon crystals;

The second kiln 300 for gas activation to add a water gas catalyst to the carbide 280 to re-heat at a temperature range of 800 ~ 1100 ℃ to produce a porous activated carbon 380,

It is composed of a combination of the waste heat recovery unit 400 for discharging the exhaust gas generated in the carbonization first kiln 200 and the gas activation second kiln 300.

Herein, the individual structures of the raw material hopper 100, the carbonization first kiln 200 and the gas activating second kiln 300 are the individual structures used in the known kiln apparatus for producing activated carbon. I will say no,

Detailed description of each individual structure and its effect of the raw material hopper 100, carbonization first kiln 200 and gas activation second kiln 300 that do not correspond to the features of the present invention is omitted. Let's do it.

Therefore, hereinafter, the coupling structure of the raw material hopper 100 corresponding to the features of the present invention, the first kiln furnace 200 for carbonization, the second kiln furnace 300 for gas activation, and the waste heat recovery unit 400,

The supply circulation structure of combustion heat by the combination and the waste heat recovery structure contained in the combustion gas will be described in detail.

First, the coupling structure of the present invention, as shown in Figure 1, and the opposite end of the carbonization first kiln furnace 200, the first combustion heat inlet 230 is formed at one end,

The opposite end of the second kiln furnace 300 for gas activation provided with the second combustion heat inlet 330 is penetrated by the transfer pipe 240,

The carbide discharge port 250 formed at a position adjacent to the first combustion heat inlet 230 of the first kiln furnace 200 for carbonization is the second combustion heat inlet 330 of the second kiln furnace 300 for gas activation. Penetrating the carbide inlet 340 formed in the opposite position to the exhaust gas collection pipe 420 of the waste heat recovery unit 400 is the second combustion heat inlet of the second kiln furnace 300 for gas activation. It is coupled with the ventilation hole 320 is formed in a position opposite to 330,

Reflux tube 430 formed on the upper portion of the body 410 constituting the waste heat recovery unit 400 is

It has a structure penetrated with the first combustion heat inlet 230,

The bottom surface of the body 410 has a structure in which the exhaust gas agglomeration tube 440 filled with the refrigerant 450 as an outer circumferential surface thereof penetrates the bottom surface of the body 410.

Next, the combustion heat supply circulation structure of the present invention, as shown in Figure 2,

The combustion heat supplied from the first combustion heat inlet 230 of the first kiln furnace 200 for carbonization by the coupling structure of the present invention heats the internal space 260 of the first frame 210 and simultaneously discharges a carbide. The internal space 360 of the second frame 310 constituting the second kiln 300 for gas activation is heated through the 250 and the carbide inlet 340,

The combustion heat supplied from the second combustion heat inlet 330 of the second kiln furnace 300 for gas activation heats the internal space 360 of the second framework 310 and is transferred through the transfer pipe 240. 1 by heating the inner space 260 of the frame 210,

Combustion heat and second combustion heat inlet 330 are supplied from the first combustion heat inlet 230 to the internal space 260 of the first frame 210 and the internal space 360 of the second frame 310. As the heat of combustion supplied from

The first kiln furnace 200 for carbonization and the second kiln furnace 300 for gas activation may improve productivity of activated carbon by shortening a preheating process stably maintaining a desired temperature in the shortest time.

Next, the waste heat recovery structure included in the combustion gas of the present invention is shown in Figure 3,

When the organic material raw material 110 is heated in the internal space 260 of the first kiln furnace 200 for carbonization to be produced as carbide 280 of carbon crystals,

The exhaust gas generated in the process of burning the impurities contained in the organic raw material 110 is formed through the carbide discharge port 250 and the transfer pipe 240 formed at both ends of the first frame 210, and the second frame body. Inflow into the exhaust gas collection pipe 420 constituting the internal space portion 360 and the waste heat recovery unit 400 of the 310 is discharged to the outside through the exhaust gas aggregation pipe 440.

At this time, the exhaust gas contains a large amount of high temperature organic volatile to maintain a very high temperature,

In the present invention, by passing the exhaust passage of the exhaust gas to the internal space portion 360 of the second frame 310,

High temperature organic volatiles containing the exhaust gas can be recycled to the heat of combustion,

Furthermore, the organic volatile matter remaining in the exhaust gas introduced into the exhaust gas collection pipe 420 may also be recycled into the combustion heat of the first combustion heat inlet 230 through the reflux pipe 430.

Since the outer circumferential surface of the exhaust gas condensing tube 440 formed through the lower bottom surface of the body 410 constituting the waste heat recovery part 400 is filled with a large amount of refrigerant,

When the exhaust gas having the high temperature heat is discharged to the outside along the exhaust gas condensing tube 440, the high temperature exhaust gas, which is in a gas state, is filled in the outer circumferential surface of the exhaust gas condensing tube 440. By discharging in a condensed state, it is possible to minimize the scattering of the exhaust gas discharged to the outside.

Next, look at the manufacturing process of the activated carbon according to the present invention as shown in Figure 4,

When the organic material raw material 110 stored in the raw material hopper 100 is introduced into the raw material inlet 220 of the first kiln furnace 200 for carbonization by the coupling structure of the present invention,

The internal temperature of the inner space portion 260 of the first frame 210 constituting the carbonization first kiln 200 is in the temperature range of 600 ~ 800 ℃ supplied from the first combustion heat inlet 230 The heat of combustion and the heat of combustion in the temperature range of 800 to 1100 ° C. supplied from the second combustion heat inlet 330 are simultaneously supplied, thereby shortening the preheating process in the shortest time.

As the organic material raw material 110 transferred along the transfer means 270 provided in the inner space 260 of the first mold body 210 to maintain a desired temperature range uniformly, is heated at a desired constant temperature. The quality of the carbide 280 is to be improved.

Although the present invention has been described with reference to the above embodiments, it can of course be carried out in various ways without departing from the technical spirit of the present invention.

Claims

In the apparatus for producing activated carbon by a conventional continuous kiln apparatus having a raw material hopper, a combustion heat inlet, a carbonization first kiln, a gas activation second kiln and an exhaust gas discharge unit,

A raw material hopper 100 in which the organic material raw material 110 serving as a raw material of the activated carbon is stored;

Raw material inlet 220 and both ends of the first frame 210 through which the inner circumferential surface is made of refractory material and penetrated therein;

The first combustion heat inlet 230 is provided with the combustion heat having a temperature range of 600 ~ 800 ℃, respectively,

In a position adjacent to the raw material inlet 220 and the first combustion heat inlet 230, a separate transport pipe 240 and a carbide discharge port 250 are respectively provided,

A first kiln for carbonization (200) for forming a carbide (280) in the inner space portion (260) of the first frame (210), wherein the transport means (270) of the organic material (110) is formed;

Ventilation holes 320 and both ends of the second frame 310 through which the inner circumferential surface is made of refractory material and penetrated therein;

The second combustion heat inlet 330 is formed to penetrate the transfer pipe 240 and provide combustion heat having a temperature range of 800 to 1100 ° C., respectively.

Carbide inlets 340 and activated carbon outlets 350 penetrated through the carbide outlets 250 are disposed at positions adjacent to the ventilation hole 320 and the second combustion heat inlet 330, respectively.

The second kiln furnace for gas activation to form a porous activated carbon 380 is formed in the inner space portion 360 of the second frame 310 to form a separate transport means 370 for transporting the carbide 280 ( 300);

An exhaust gas collection pipe 420 penetrating the ventilation hole 320 is formed at the center of the side of the body 410, the inside of which is sealed.

The reflux tube 430, one end of which penetrates the first combustion heat inlet 230, protrudes from the upper portion,

The exhaust gas agglomeration tube 440 is installed through the bottom surface of the body 410,

The outer peripheral surface of the exhaust gas agglomeration pipe 440, continuous activated carbon production apparatus, characterized in that consisting of a combination of the waste heat recovery unit 400: filled with a separate refrigerant (450).