KR102610219B1 - Activated carbon manufacturing method to improve yield - Google Patents

Abstract

The present invention relates to a method for producing activated carbon to improve yield, comprising the steps of (a) putting palm oil in a combustion furnace and burning it to produce charcoal; (b) removing the charcoal from the combustion furnace, cooling it by spraying water on it, and allowing it to cool while naturally drying at room temperature for a certain period of time; (c) putting the dried charcoal into a crusher and crushing it in the crusher to obtain pulverized material of a predetermined size; (d) storing the pulverized material obtained in step (c) in a basket, placing it in a water sprayer, and spraying atomized water particles from the nozzle in the water sprayer to submerge the pulverized material so that the moisture content of the pulverized material is 20 to 30 wt%. ; (e) a moisture removal step of placing the pulverized material with moisture obtained in step (d) into a rotary drying tank and heating the rotary drying tank to dry the moisture in the pulverized material by indirect heating; (f) putting the pulverized material from which moisture has been removed obtained in step (e) into a furnace, and spewing a high-temperature flame into the interior of the furnace for a set time to heat the pulverized material and carbonize it while removing moisture; (g) an activation carbonization step in which high-pressure, high-temperature steam is injected into the furnace of step (f) to heat the core of the pulverized material, and a plurality of pores are formed in the pulverized material by direct injection of high-pressure steam; (h) collecting the carbonized pulverized material obtained in step (g) above, placing it in a separation net, and selecting it through a sieve operation to obtain powdered activated carbon of fine particles.

Description

{Activated carbon manufacturing method to improve yield}

The present invention relates to a method of producing activated carbon for improving yield by processing raw materials so that the formation rate of micropores can be greatly increased.

In general, in urban areas where various material civilizations have developed due to industrialization, the population concentration and various facilities are dense, and the air in the atmosphere is seriously polluted due to environmental pollution, which poses a great risk to the health of many people living in urban areas.

Accordingly, many air purification technologies have been developed to remove various harmful substances contained in the air. In particular, as the ability of activated carbon to purify the surrounding air by adsorbing various harmful substances not beneficial to the human body in porous carbon crystals became known, various A form of activated carbon has been developed.

The manufacturing process of activated carbon using the gas activation method, which has been most commonly used recently, heats the organic material used as a raw material for activated carbon in the range of 600 to 800°C, burns the volatile tissue contained in the organic material, and produces carbide organized as carbon crystals. It can be divided into a carbonization process that generates (carbonized charcoal) and an activation process that generates finely porous adsorption carbon by reheating carbonized charcoal to which a gas catalyst such as steam gas (water vapor) is added in the range of 800 to 1,100°C. , most activated carbon using the gas activation method was manufactured using a general kiln device with a known structure.

In order to manufacture activated carbon using a kiln device, the length of the furnace must be at least a certain size to heat a large amount of activated carbon simultaneously due to the characteristics of the kiln furnace for carbonization and the kiln furnace for gas activation, which require the internal temperature to be maintained at a high temperature. It consists of a long .

Meanwhile, activated carbon raw materials must be manufactured by importing wood, palm shells, lignite, etc. and carbonizing them. Since these raw materials have absorbed moisture in advance to prevent the risk of fire during ship transportation, the moisture is dried in order to process them into activated carbon. A process to remove it was necessary, but there was a problem in that the quality deteriorated because it could not be dried properly.

In particular, the filter function of activated carbon can be increased only when a large number of micropores are formed in the raw material, but the conventional activated carbon manufacturing process had the disadvantage of insufficient porosity formation process.

Korean Patent No. 10-2027061

The present invention was developed to solve the problems of the prior art, and its purpose is to provide a method for producing activated carbon to improve yield by processing raw materials so that the formation rate of micropores can be greatly increased.

The object of the present invention described above is the steps of (a) putting palm oil in a combustion furnace and burning it to produce charcoal; (b) removing the charcoal from the combustion furnace, cooling it by spraying water on it, and allowing it to cool while naturally drying at room temperature for a certain period of time; (c) putting the dried charcoal into a crusher and crushing it in the crusher to obtain pulverized material of a predetermined size; (d) storing the pulverized material obtained in step (c) in a basket, placing it in a water sprayer, and spraying atomized water particles from the nozzle in the water sprayer to submerge the pulverized material so that the moisture content of the pulverized material is 20 to 30 wt%. ; (e) a moisture removal step of placing the pulverized material with moisture obtained in step (d) into a rotary drying tank and heating the rotary drying tank to dry the moisture in the pulverized material by indirect heating; (f) placing the pulverized material from which moisture has been removed obtained in step (e) into a furnace, and spewing a high-temperature flame into the interior of the furnace for a set time to heat the pulverized material and carbonize it while removing moisture; (g) an activation carbonization step in which high-pressure, high-temperature steam is injected into the furnace of step (f) to heat the core of the pulverized material, and a plurality of pores are formed in the pulverized material by direct injection of high-pressure steam; (h) collecting the carbonized pulverized material obtained in step (g), placing it in a separation net, and selecting it through a sieve operation to obtain fine particle powdered activated carbon; can be achieved by

According to the present invention, the yield can be improved by processing the raw material, coconut foil, into charcoal, and then the formation rate of fine pores can be greatly increased by steaming and carbonization using high-pressure steam, and the adsorption performance of activated carbon can be increased. There is a possible effect.

1 is a flow chart showing the activated carbon production process according to the present invention;
Figure 2 is a diagram illustrating steps (c), (d), (e), (f), and (g) in the activated carbon production process according to the present invention;
Figure 3 is a diagram showing step (f) in detail in the activated carbon production process according to the present invention;
Figure 4 is a front view showing the 'crusher' in step (c) of the activated carbon manufacturing process according to the present invention.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, various changes can be made to the embodiments, so the scope of the patent application is not limited or limited by these embodiments. It should be understood that all changes, equivalents, or substitutes for the embodiments are included in the scope of rights.

Specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and may be modified and implemented in various forms. Accordingly, the embodiments are not limited to the specific disclosed form, and the scope of the present specification includes changes, equivalents, or substitutes included in the technical spirit.

Terms such as first or second may be used to describe various components, but these terms should be interpreted only for the purpose of distinguishing one component from another component. For example, a first component may be named a second component, and similarly, the second component may also be named a first component.

When a component is referred to as being “connected” to another component, it should be understood that it may be directly connected or connected to the other component, but that other components may exist in between.

The terms used in the examples are for descriptive purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless explicitly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

In addition, when describing with reference to the accompanying drawings, identical components will be assigned the same reference numerals regardless of the reference numerals, and overlapping descriptions thereof will be omitted. In describing the embodiments, if it is determined that detailed descriptions of related known technologies may unnecessarily obscure the gist of the embodiments, the detailed descriptions are omitted.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

In the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are the same as those commonly understood by a person of ordinary skill in the technical field to which the present invention pertains. It has meaning. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the embodiments of the present invention, have an ideal or excessively formal meaning. It is not interpreted as

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are illustrative, and the present invention is not limited to the matters shown. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. When ‘includes’, ‘has’, ‘consists of’, etc. mentioned in this specification are used, other parts may be added unless ‘only’ is used. When a component is expressed in the singular, the plural is included unless specifically stated otherwise.

When interpreting a component, it is interpreted to include the margin of error even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as 'on top', 'on the top', 'on the bottom', 'next to', etc., 'immediately' Alternatively, there may be one or more other parts placed between the two parts, unless 'directly' is used.

When an element or layer is referred to as “on” another element or layer, it includes instances where the element or layer is directly on top of or intervening with another element. Like reference numerals refer to like elements throughout the specification.

The size and thickness of each component shown in the drawings are shown for convenience of explanation, and the present invention is not necessarily limited to the size and thickness of the components shown.

Each feature of the various embodiments of the present invention can be partially or fully combined or combined with each other, and as can be fully understood by those skilled in the art, various technical interconnections and operations are possible, and each embodiment may be implemented independently of each other. It may be possible to conduct them together due to a related relationship.

Among the attached drawings, Figure 1 is a flow chart showing the activated carbon manufacturing process according to the present invention, Figure 2 is a flow chart showing steps (c), (d), (e), and (f) of the activated carbon manufacturing process according to the present invention; Figure 3 is a diagram illustrating step (g), Figure 3 is a detailed diagram showing step (f) in the activated carbon manufacturing process according to the present invention, and Figure 4 is a 'crusher' in step (c) in the activated carbon manufacturing process according to the present invention. This is the front view shown.

The activated carbon manufacturing process according to the present invention,

(a) putting palm oil in a combustion furnace and burning it to produce charcoal (S10);

(b) withdrawing the charcoal from the combustion furnace, cooling it by spraying water on it, and allowing it to cool while naturally drying at room temperature for a certain period of time (S20);

(c) putting the dried charcoal into the crusher 100 and crushing it in the crusher 100 to obtain pulverized material of a predetermined size (S30);

(d) The pulverized material obtained in step (c) (S30) is stored in the basket 220, placed in the water sprayer 200, and atomized water particles are sprayed from the nozzle 210 in the water sprayer 200. Submerging the pulverized material so that the moisture content is 20 to 30 wt% (S40);

(e) Put the pulverized material with moisture obtained in step (d) (S40) into the rotary drying tank 300, and heat the rotary drying tank 300 to dry the moisture in the pulverized material by indirect heating. Removal step (S50);

(f) The pulverized material from which the moisture has been removed obtained in step (e) (S50) is placed in the furnace 400, and a high-temperature flame is emitted inside the furnace 400 for a set time to heat the pulverized material to remove moisture. removing and carbonizing (S60);

(g) High-pressure, high-temperature steam is injected into the furnace 400 in step (f) (S60) to heat the core of the pulverized material, and a plurality of pores are formed in the pulverized material by direct injection of high-pressure steam. Activation carbonization step (S70);

(h) collecting the carbonized pulverized material obtained in step (g) (S70), placing it in a separation net (500), and selecting it through a sieve operation to obtain powdered activated carbon of fine particles (S80); It is made including.

Hereinafter, each of the above steps will be described in more detail.

Step (a) (S10)

Put the coconut shell (coconut fruit shell) into the combustion furnace and burn it for 30 to 50 minutes to make charcoal (T).

Step (b) (S20)

The charcoal (T) is taken out from the combustion furnace and spread and distributed evenly on a panel of a predetermined area.

Afterwards, water is sprayed on the charcoal (T) in the form of a shower to cool it. Preferably, 10 to 15 parts by weight of water is sprayed per 100 parts by weight of charcoal.

If the amount of water is less than 10 parts by weight, the cooling effect becomes insignificant, and if it is more than 15 parts by weight, it is excessive and there is a risk that the drying time described later will be delayed for a long time.

Afterwards, the charcoal (T) is naturally dried and cooled at room temperature for 3 to 8 hours.

Step (c) (S30)

The dried charcoal (T) is put into the crusher (100), and the charcoal (T) is crushed in the crusher (100) to obtain pulverized material (T-2) with a size of about 4 to 6 mm.

Referring to Figure 4, the shredder 100 is

First and second crushing rollers (120, 120') arranged horizontally in parallel on both sides to be circumscribed,

A base 130 having a support plate 140 formed on both sides of a long hole 142 to which the shafts 122 of the first and second crushing rollers 120 and 120' are coupled,

A bearing housing 152 mounted on the base 130 and coupled to the end of the shaft 122 of the first and second crushing rollers 120 and 120', and a cylinder rod 151 horizontally connected to the bearing housing 152. ) A cylinder unit (150) provided with,

It is configured to include a power source that drives the first and second crushing rollers 120 and 120' in opposite directions to rotate them in a converging direction.

Charcoal is supplied to the circumscribed portions of the first and second crushing rollers (120, 120'), and the first and second crushing rollers (120, 120') are rotated in a converging direction to crush the charcoal (T).

In addition, the cylinder unit 150 is operated to properly set the size of the shredded charcoal (T) so that the cylinder rod 151 is pulled out or retracted,

The bearing housing 152 to which the cylinder rod 151 is connected moves back and forth, thereby moving the axes 122 of each of the first and second crushing rollers 120 and 120'. The spacing can be adjusted.

By adjusting the spacing between the first and second crushing rollers 120 and 120' in this way, the size of the charcoal to be pulverized, that is, the pulverized material T-2, can be appropriately adjusted.

Step (d) (S40)

(c) The pulverized material (T-2) obtained in step (S30) is stored in the basket 220 and then placed in the water sprayer 200, and the atomized water particles are atomized from the nozzle 210 in the water sprayer 200. Spray and submerge the pulverized material so that the moisture content is 20 to 30 wt%.

There is a risk that pulverized material (charcoal) may ignite and cause a fire during long-term transportation, such as ship transportation, so ensure that it is immersed in moisture to prevent this in advance.

Step (e) (S50)

(d) The pulverized material having moisture obtained in step (S40) is placed in the rotary drying tank 300, and the rotary drying tank 300 is heated to dry the moisture in the pulverized material by indirect heating.

The rotary drying tank 300 has rotating shafts formed on both sides, pedestals 310 coupled to each rotating shaft with bearings are formed on both sides, a driven pulley 324 is formed on one rotating shaft, and a pedestal 310 on one side is provided. It is connected to the main pulley 323 of the mounted motor 322 and the chain 325 to enable rotation.

In addition, the rotary drying tank 300 has a heat source portion 340 formed on its outer surface and is heated to about 70 to 80°C.

The heat source unit 340 may be a steam coil tube through which steam is supplied to generate heat. Or, it may be a heating coil that generates heat by electricity.

Step (f) (S60)

(e) The pulverized material from which the moisture has been removed obtained in step (S50) is placed into the inlet of the furnace (400).

Afterwards, a high-temperature flame is emitted inside the furnace 400 for a set time to heat the pulverized material and carbonize it while removing moisture.

Referring to FIG. 3, the furnace 400 has a cylindrical shape, a steam chamber 420 is mounted on the inlet side of the furnace 400, and a burner 440 is mounted on one side to communicate with the steam chamber 420. , the burner nozzle 442 of the burner 440 is formed to face the flame spray net 444 mounted on one opening of the steam chamber 420.

Therefore, the flame sprayed from the burner nozzle 442 is dispersed as it passes through the flame spray net 444, passes through the steam chamber 420, and heats the inside of the furnace 400, thereby causing the pulverized material introduced into the inlet of the furnace 400. It can be moved to the inside of the furnace 400 by this flame and can be heated.

Step (g) (S70)

In step (f) (S60), high-pressure, high-temperature steam is injected into the furnace 400 to heat the core of the pulverized material.

As this high-pressure steam is sprayed directly onto the pulverized material, activation carbonization is performed in which a large number of pores can be formed in the pulverized material due to high-pressure collisions of water vapor particles.

After the pulverized material is stored in the steam chamber 420 formed at the inlet side of the furnace 400, steam is supplied eccentrically.

High-pressure steam is injected from the steam pipe 430 eccentrically connected to the side of the steam chamber 420, and the pulverized material is rotated in a spiral shape along the inner circumferential surface of the steam chamber 420, and heating by steam is performed at the same time to heat the furnace 400. ), a step of being transferred to the interior of

After a certain period of time has elapsed after steam injection, steam injection is turned off,

It may include a step of turning on the burner 440 of the furnace 400 to spray flame into the steam chamber 420 so that the pulverized material is dried while being moved into the interior of the furnace 400 by the flame injection force.

Also, referring to FIG. 3, the steam chamber 420 has a cylindrical shape, and spiral-shaped vanes 425 are formed on the inner peripheral surface so that eccentrically injected steam can form a vortex.

Step (h) (S80)

The carbonized pulverized material obtained in step (g) (S70) is collected, placed in a separation net 500, and selected through a sieve operation to obtain fine particle powdered activated carbon.

More specifically,

A step of operating the driving source 520 to vibrate the separation net 500, thereby causing powdered activated carbon of a predetermined size to fall through the net and be collected in the collection bin 510;

The pulverized material remaining in the separation net 500 because the particles are large is recovered, placed in a grinder, pulverized, and then put back into the separation net 500 and sieved to obtain powdered activated carbon of fine particles. .

Referring to Figure 2, the separation network 500 is

A base 530 forming an inner space where the collection box 510 is stored.

A spring 522 mounted on each upper part of the base 530,

It includes a frame 502 supported at both ends by springs 522, and a net body 504 attached to the inside of the frame 502.

The drive source 520 includes a pulley 523 having a plurality of protrusions formed on the outer periphery that contact the upper side of the frame 502, and a motor 524 that rotates the pulley 523.

Therefore, when the pulley 523 is rotated by the on operation of the motor 524, a plurality of protrusions continuously hit the frame 502, and the frame 502 is shaken by the expansion and contraction of the spring 522, thereby causing the sieve to sieve. Work can be carried out.

Although embodiments of the present invention have been described in more detail with reference to the accompanying drawings, the present invention is not necessarily limited to these embodiments, and various modifications may be made without departing from the technical spirit of the present invention. . Accordingly, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, but are for illustrative purposes, and the scope of the technical idea of the present invention is not limited by these embodiments. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive. The scope of protection of the present invention should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of the present invention.

Therefore, other implementations, other embodiments, and equivalents of the claims also fall within the scope of the following claims.

100: Shredder 120,120': 1st and 2nd shredding rollers
130: base 140: support plate
150: Cylinder unit 200: Water sprayer
300: Rotary drying tank 340: Heat source unit
400: Ro 420: Steam chamber
440: burner 500: separation net
502: frame 504: mesh
510 ; collection box 522 ; spring
523: pulley

Claims (3)

(a) putting palm oil in a combustion furnace and burning it to produce charcoal;
(b) removing the charcoal from the combustion furnace, cooling it by spraying water on it, and allowing it to cool while naturally drying at room temperature for a certain period of time;
(c) putting the dried charcoal into a crusher and crushing it in the crusher to obtain pulverized material of a predetermined size;
(d) storing the pulverized material obtained in step (c) in a basket, placing it in a water sprayer, and spraying atomized water particles from the nozzle in the water sprayer to submerge the pulverized material so that the moisture content of the pulverized material is 20 to 30 wt%. ;
(e) A moisture removal step of putting the pulverized material with moisture obtained in step (d) into a rotary drying tank and heating the rotary drying tank to dry the moisture in the pulverized material by indirect heating.
(f) putting the pulverized material from which moisture has been removed obtained in step (e) into a furnace, and spewing a high-temperature flame into the interior of the furnace for a set time to heat the pulverized material and carbonize it while removing moisture;
(g) an activation carbonization step in which high-pressure, high-temperature steam is injected into the furnace of step (f) to heat the core of the pulverized material, and a plurality of pores are formed in the pulverized material by direct injection of high-pressure steam;
(h) collecting the carbonized pulverized material obtained in step (g) above, placing it in a separation net, and selecting it through a sieve operation to obtain fine particle powdered activated carbon;
Activated carbon production method comprising: According to clause 1,
In step (g) above,
The pulverized material is stored in a steam chamber formed on the inlet side of the furnace,
A step in which high-pressure steam is injected from a steam pipe eccentrically connected to the side of the steam chamber, and the pulverized material is rotated in a spiral shape along the inner circumferential surface of the steam chamber, and at the same time, heating by steam is performed and transferred to the interior of the furnace;
After a certain period of time has elapsed after the steam injection, the steam injection is turned off,
It includes the step of turning on the burner of the furnace so that flame is sprayed into the steam chamber so that the pulverized material is dried while being moved into the interior of the furnace by the flame spray force,
The crusher in step (c) is
First and second crushing rollers arranged horizontally in parallel on both sides to be circumscribed,
A base having a support plate formed on both sides of a long hole to which the axes of each of the first and second crushing rollers are coupled,
A cylinder unit mounted on the base and having a bearing housing coupled to an end of the shaft of the crushing roller, and a cylinder rod horizontally connected to the bearing housing;
A power source that drives the crushing rollers in opposite directions to rotate them in a converging direction.
Activated carbon production method comprising: According to clause 1,
In step (h),
A step of sieving by operating a drive source to vibrate the separation net, causing powdered activated carbon of a predetermined size to fall through the net to be collected in a collection box;
Recovering the pulverized material remaining in the separation net because the particles are large, placing it in a grinder, pulverizing it, and then putting it back into the separation net to obtain fine-particle powdered activated carbon by sieving,
The separation network is
The expectation is that the inner space where the collection box is stored is formed.
Springs respectively mounted on the upper portions of both sides of the base,
It includes a frame supported at both ends by the spring and a net attached to the inside of the frame,
The driving source is
A method of manufacturing activated carbon, comprising a pulley formed on the outer periphery of a plurality of protrusions in contact with one upper side of the frame, and a motor that rotates the pulley.