KR20170019538A - Easy cleanable tuyere for gas distributor - Google Patents

Abstract

The present invention relates to a tuyere for a fluidized bed distributor which allows easy cleaning of the inner part thereof, a gas distributor having the tuyere and a fluidized bed reactor including the gas distributor. More particularly, the present invention relates to a tuyere provided on a gas distributor of a fluidized bed reactor, which comprises: a gas inlet pipe linked to a mounting hole formed on a gas distributor to define a solid flow chamber and a gas introduction chamber of the fluidized bed reactor so that the gas in the gas introduction chamber may be introduced; a tuyere main body which has an inner space to introduce the gas injected to the gas inlet pipe thereto, includes a semi-spherical upper surface curved bulgingly toward the upper side, and is provided with a plurality of orifices at one side of the lateral surface to eject the gas of the inner space to the solid flow chamber; and an attachment/detachment member for attaching/detaching the gas inlet pipe to/from the tuyere main body.

Description

[0001] The present invention relates to an easy cleanable tuyere for gas distributor,

The present invention relates to a tuyer for a gas distributor plate easy to be washed internally, and a gas distributor plate having the tuyeres and a fluidized bed reactor including the gas distributor plate.

Solid-Fluidized Bed Reactor (GFD) is a process in which solid particles are filled in the fluidized-bed reactor and then suspended in the bottom of the fluidized-bed reactor to float the solid particles. To be similar.

Generally, the fluidized bed apparatus has a body and the inside is divided by a gas dispersion plate, and the upper side is composed of a solid fluid chamber and the lower side is composed of a gas introduction chamber. The gas introduction chamber is filled with fluidizing gas, And the fluidized gas introduced into the gas introduction chamber is dispersed in the solid flow chamber to float the solid particles to the upper portion of the solid flow chamber.

1 shows a cross-sectional view of a fluidized bed apparatus 1 equipped with a conventional gas distribution plate 10. As shown in FIG. 1, the fluidized bed apparatus 1 includes a distributor 10 to divide the fluidized bed apparatus internal space into a solid fluidized bed 2 and a gas inlet chamber 3, a plenum or a wind The gas is also injected into the inlet chamber 3 and the gas is dispersed evenly through the gas distribution plate 10 so that the powder flows in the solid flow chamber 2 as the upper space Structure.

FIG. 2A shows a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate composed of a conventional perforated plate 11. FIG. 2B shows a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate constructed from a conventional perforated plate 12. FIG. 2C is a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate with a conventional nozzle-type tuyer 14. 2d shows a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate with a conventional bubble cap tuyere 15.

As shown in FIG. 2A, in the case of a small-sized fluidized bed apparatus (fluidized bed reactor), a gas distribution plate 10 composed of a porous plate 11 capable of selectively passing only gas is mainly used, The gas distribution plate 10 composed of the gas distribution plate 11 is disadvantageous in that it has a high fan power for injecting gas because of high differential pressure and has to be periodically replaced because its strength is not high, And there is a disadvantage that clogging due to corrosion of the perforated plate 11 itself or clogging due to fine powder may occur.

In order to solve such disadvantages, it can be seen that a dispersion plate 10 in the form of a perforated plate 12 can be applied as shown in FIG. 2B. 3 is a perspective view of a conventional gas distribution plate of a perforated plate 12. As shown in FIG. 3, the diffuser plate in the form of the perforated plate 12 is formed by drilling a plurality of holes 13 or forming an empty space in the gas distributor plate to induce the gas to be dispersed through the holes or spaces, 11). However, since the gas injection is stopped or the pressure acting on the driving of the perforated plate 12 by the gas into which the pressure acting under the solid particles in the fluidized bed is injected acts on the pressure of the perforated plate 12 , There arises a problem that the solid particles flow down into the inlet chamber 3 through the holes of the perforated plate 12.

In order to prevent such a problem, conventionally, a method of making the diameter of the holes 13 formed in the gas distribution plate smaller than the average diameter of the solid particles used has been employed. However, in this case, (Holes 13) are often clogged due to the deposition of solid particles.

Alternatively, in order to prevent the solid particles from flowing into the inlet chamber 3, the gas distributor plates 10 may be disposed in a double manner so as to be offset from each other. In this case, however, There is a disadvantage that the flow of gas is disturbed.

As shown in Figs. 2A and 2B, in order to solve the disadvantages of the gas distributor 10 in the form of the perforated plate 11 and the perforated plate 12, as shown in Figs. 2C and 2D, ) Structure can be applied.

The gas is also supplied from the inlet chamber 3 to the lower side of the tuber and is discharged in the lateral direction or the lower direction with respect to the body of the tuber, as shown in Figs. 2C and 2D.

By using the tuyer as described above, it is possible to reduce the phenomenon that the solid particles flow into the inlet chamber 3 while the gas is appropriately dispersed and injected. However, when the tuyer is used, the shape of the gas flowing down into the inlet chamber 3 can be reduced. However, since the solid particles are accumulated in the void space inside the tuyer and are clogged or sintered at a high temperature, The gas outlet may be clogged.

In addition, in the case of the tuyer as shown in FIG. 2d, since the gas can not be injected onto the upper surface of the tubular body, the solid particles can be stacked on the upper part In order to solve such a problem, as shown in FIG. 2C, it is installed so as not to allow particles to accumulate on the upper surface of the tubular main body (usually, considering the repose angle of particles).

Such a conventional tubular structure has a problem in that it is difficult to manufacture due to the complicated structure and high cost, and there arises a problem that the inside can not be cleaned and cleaned.

Therefore, it is easy to manufacture, cheap, and prevents the particles from accumulating on the upper part of the tuber while minimizing the flow of the solid particles into the tuber while applying the tubular structure, It is required to develop a tuyer structure that is easy to clean when the gas outlet is closed and a gas dispersion plate to which the tuyer is applied.

Korean Patent Publication No. 2014-0006325 Korean Patent Publication No. 2014-0102431 Korea Patent Publication No. 2013-0027444 Korean Patent No. 0818768

Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to provide a hemispherical tuyer which is easy to manufacture, low in cost, It is possible to prevent the solid particles from flowing into the tuyer and to minimize the possibility that the tuyere body can be separated and combined by the attaching / detaching member, or that the tuyere body and the gas injection tube are detachable Since the tuyere body and the gas inlet tube can be detachably attached to the tuyere body, it is possible to minimize the cost due to the replacement of the tuyere by cleaning the inside of the tuyere body and the orifice (gas discharge port) The number of orifices and the diameter of the tuyer body can be changed by changing the type of solid particles, Followed by the distribution body condition distributed fluidized bed internal cleaning is easy to change the panyong tube, and to provide a fluidized bed distributor plate having the tube after it is an object.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are not intended to limit the invention to the precise form disclosed. It can be understood.

A first object of the present invention is to provide a tuyer provided in a gas distribution plate of a fluidized bed reactor, which is connected to a mounting hole formed in a gas distribution plate for partitioning a solid fluid chamber of the fluidized bed reactor and a gas inlet chamber, A gas injection tube into which a gas of a gas is injected; The upper surface of which has a convexly curved hemispherical upper surface and is provided at one side of the side surface to discharge the gas of the inner space into the solid flow chamber A tuyer main body having an orifice formed therein; And a detachable member for detachably attaching the gas injection pipe and the tuyere body to the inner wall of the gas distribution plate.

Further, the discharge angle of the gas discharged from the orifice may be inclined downward.

The gas injection pipe may be configured such that an upper end of the gas injection pipe is protruded by a predetermined height from the inner space of the tuyere body.

And the gas injection pipe is detachably attachable to the gas distribution plate.

A second object of the present invention is to provide a gas distributor comprising a tank for partitioning a solid fluidized bed of a fluidized bed reactor and a gas inlet chamber and equipped with a tuyer according to the first object on one side, Can be achieved as a diffuser plate.

A third object of the present invention can be achieved as a fluidized bed reactor characterized in that it comprises, in the fluidized bed reactor, a gas distribution plate according to the second object mentioned above.

A fourth object of the present invention is to provide a method of operating a fluidized bed reactor employing a tuyer for a gas distribution plate that is easy to clean internally, comprising the steps of: injecting gas into a gas inlet tube of a tuyer; Introducing the gas injected into the gas injection tube into the hemispherical tuyer body connected to the gas injection tube; A gas inside the tuyer body is discharged through the orifice formed at one side of the tuyere body to the solid flow chamber to float the solids of the solid flow chamber; Desorbing the tuyer body from the gas inlet tube when it is necessary to change the number or diameter of the orifices depending on the characteristics of the solid particles or to block the inside of the tuyer or to close the orifice; And attaching the tuyer body to the gas injection tube by cleaning and cleaning the tuyer and attaching the tuyer body to the gas injection tube, or attaching a tuyer body having the number and diameter of the orifices satisfying the gas distribution condition to the gas injection tube. It can be achieved as a method of operating a fluidized bed reactor having a tube that is easy to wash.

A fifth object of the present invention is to provide a tuyer provided in a gas distribution plate of a fluidized bed reactor, which is connected to a mounting hole formed in a gas distribution plate for partitioning a solid fluid chamber of the fluidized bed reactor and a gas inlet chamber, A gas injection tube into which a gas of a gas is injected; The upper surface of which has a convexly curved hemispherical upper surface and is provided at one side of the side surface to discharge the gas of the inner space into the solid flow chamber A tuyer main body having two or more separated members joined together; And a detachable member for detachably attaching two or more separate members constituting the tuyer main body to the inner wall of the tuyere body.

The tuyer main body includes an upper tuyer main body having a hemispherical upper surface curved convexly toward the upper side and an attachment / detachment member at the lower end, a lower end connected to the gas injection tube, an orifice formed at one side, And a lower tier main body detachably attachable to and detachable from the upper tier main body.

A sixth object of the present invention is to provide a gas distribution plate for a fluidized bed reactor in which a solid fluidized bed of a fluidized bed reactor and a gas inlet chamber are defined and a tube according to the above- Can be achieved as a diffuser plate.

A seventh object of the present invention can be achieved as a fluidized bed reactor characterized by comprising a gas distribution plate according to the sixth aspect in the fluidized bed reactor.

The eighth object of the present invention is to provide a method of operating a fluidized bed reactor employing a tuyer for a gas distribution plate which is easy to be cleaned, comprising: injecting gas into a gas inlet tube of a tuyer; Introducing the gas injected into the gas injection tube into the hemispherical tuyer body connected to the gas injection tube; A gas inside the tuyer body is discharged through the orifice formed at one side of the tuyere body to the solid flow chamber to float the solids of the solid flow chamber; Desorbing the tuyer body from the gas inlet tube when it is necessary to change the number or diameter of the orifices depending on the characteristics of the solid particles or to block the inside of the tuyer or to close the orifice; And attaching the tuyer body to the gas injection tube by cleaning and cleaning the tuyer and attaching the tuyer body to the gas injection tube, or attaching a tuyer body having the number and diameter of the orifices satisfying the gas distribution condition to the gas injection tube. It can be achieved as a method of operating a fluidized bed reactor having a tube that is easy to wash.

According to one embodiment of the present invention, the hemispherical tuyer is applied, which makes it easy to manufacture, is inexpensive, can prevent particles from accumulating on the tuyer, and minimizes the flow of solid particles into the tuyeres And the tuyere body and the gas injection tube can be detachably attached to each other so that the inside of the tuyer body, the orifice (gas discharge port) is closed, It is possible to minimize the cost due to the replacement of the tuyere, and the tuyer main body and the gas injection tube can be detachably attached, so that the tuyer body having various numbers of orifices and diameters can be changed and used, It is possible to change the gas distribution condition to the gas distribution condition even if the kind is changed.

It should be understood, however, that the effects obtained by the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those skilled in the art to which the present invention belongs It will be possible.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
1 is a cross-sectional view of a fluidized bed apparatus with a conventional gas distribution plate,
FIG. 2A is a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate composed of a conventional perforated plate,
FIG. 2B is a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate composed of a conventional perforated plate,
Figure 2c is a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate with a conventional nozzle-type tuyer,
2D is a partial cross-sectional view of a fluidized bed apparatus having a gas distribution plate with a conventional bubble cap tube,
3 is a perspective view of a conventional perforated plate type gas distribution plate,
4A is a cross-sectional view of a hemispherical tuyer according to one embodiment of the present invention,
FIG. 4B is a cross-sectional view of a hemispherical tuyer according to an embodiment of the present invention,
FIG. 5A is a cross-sectional view of a hemispherical tuyer having a structure removably attachable to a gas distribution plate body according to an embodiment of the present invention, FIG.
5B is a cross-sectional view of the gas dispersion plate body and the semi-
FIG. 5c is a sectional view of a hemispherical tuyer having a structure capable of being detachably attached to a gas distribution plate body according to an embodiment of the present invention,
FIG. 5D is a cross-sectional view of the gas distributor body and the semi-
6A is a cross-sectional view of a hemispherical tuyer having a tuyer main body and a gas injection tube detachable structure according to an embodiment of the present invention,
FIG. 6B is a cross-sectional view of the tuyer body and the gas injection tube separated from each other in FIG. 6A,
FIG. 6c is a cross-sectional view of a hemispherical tuyer having a structure in which a tuyere body and a gas injection tube are detachably mountable according to an embodiment of the present invention,
FIG. 6D is a cross-sectional view of the tuyere body and the gas injection tube separated from each other in FIG. 6C,
FIG. 7A is a cross-sectional view of a hemispherical tuyer having a detachable structure of a tuyer body according to an embodiment of the present invention;
7B is a cross-sectional view of the tuyer main body separated from each other in Fig. 7A,
FIG. 7C is a cross-sectional view of a hemispherical tuyer having a structure in which a tuyer main body according to an embodiment of the present invention is detachably mountable,
And FIG. 7D is a cross-sectional view of the tubular main body separated from each other in FIG. 7C.

BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features, and advantages of the present invention will become more readily apparent from the following description of preferred embodiments with reference to the accompanying drawings. However,

The present invention is not limited to the embodiments described below and may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art.

In this specification, when an element is referred to as being on another element, it may be directly formed on another element, or a third element may be interposed therebetween. Also in the figures, the thickness of the components is exaggerated for an effective description of the technical content.

Embodiments described herein will be described with reference to cross-sectional views and / or plan views that are ideal illustrations of the present invention. In the drawings, the thicknesses of the films and regions are exaggerated for an effective description of the technical content. Thus, the shape of the illustrations may be modified by manufacturing techniques and / or tolerances. Accordingly, the embodiments of the present invention are not limited to the specific forms shown, but also include changes in the shapes that are produced according to the manufacturing process. For example, the etched area shown at right angles may be rounded or may have a shape with a certain curvature. Thus, the regions illustrated in the figures have attributes, and the shapes of the regions illustrated in the figures are intended to illustrate specific forms of regions of the elements and are not intended to limit the scope of the invention. Although the terms first, second, etc. have been used in various embodiments of the present disclosure to describe various components, these components should not be limited by these terms. These terms have only been used to distinguish one component from another. The embodiments described and exemplified herein also include their complementary embodiments.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms "comprises" and / or "comprising" used in the specification do not exclude the presence or addition of one or more other elements.

In describing the specific embodiments below, various specific details have been set forth in order to explain the invention in greater detail and to assist in understanding it. However, it will be appreciated by those skilled in the art that the present invention may be understood by those skilled in the art without departing from such specific details. In some instances, it should be noted that portions of the invention that are not commonly known in the description of the invention and are not significantly related to the invention do not describe confusing reasons to explain the present invention.

Hereinafter, the structure and function of the tuyer 20 structure for a gas distribution plate of a fluidized bed apparatus according to an embodiment of the present invention will be described. 4A is a cross-sectional view of a hemispherical tuyer 20 according to an embodiment of the present invention.

The hemispherical tuyer 20 according to an embodiment of the present invention is connected to a mounting hole of a body of the gas distribution plate 10, and as shown in FIG. 4A, The tuyer 20 has a gas injection pipe 22 into which gas flows into the gas inlet chamber 3 and a cylindrical tuyer body 22 connected to the upper side of the gas injection pipe 22, (21).

The upper surface of the tuyer main body 21 according to the embodiment of the present invention has a hemispherical upper surface curved convexly toward the upper side. A plurality of orifices 23 are formed on one side of the tuyer main body 21 so that the gas inside the tuyer main body 21 is discharged to the solid flow chamber 2 through the orifices 23.

Therefore, the upper surface of the tier main body 21 is formed in a hemispherical shape to prevent particles from accumulating on the tier main body 21, and an orifice 23 having a small diameter is formed in the lower circumference of the tier main body 21, So that it is possible to minimize the flow of the solid particles into the tuyer main body 21.

4B is a cross-sectional view of a hemispherical tuyer 20 in which a gas injection tube 22 according to an embodiment of the present invention is protruded. 4B, the hemispherical tuyer 20 according to an embodiment of the present invention is configured such that the upper side of the gas injection tube 22 is inserted into the inner space of the tuyer body 21 by a predetermined height H, As shown in FIG. Therefore, even if the solid particles enter the tuyer main body 21, the solid particles can be prevented from flowing into the gas inlet chamber 3 except for the case where the gas injection pipe 22 is piled up above the inserted height H .

Accordingly, since the tuyer 20 structure according to the embodiment of the present invention is formed in a hemispherical shape, it is easy to manufacture, is inexpensive, can prevent particles from accumulating on the tuyer 20, It is possible to minimize the flow of the solid particles into the tuyer body 21 and to prevent the solid particles from entering the inlet chamber 3 as well.

However, in the case of the tubular structure shown in FIGS. 4A and 4B, when starting and stopping the fluidized bed reactor 1 or when the operation is not smooth, the gas can not be injected through the tubular reactor 20 In this case, the solid particles can flow back into the tuyer 20. When the backflow of the solid particles occurs, some particles accumulate inside the tuyer 20, and some particles accumulate in the inlet chamber 3.

In the fluidized bed reaction conditions, particles are continuously moved by the injected gas. However, when the gas is not injected, there is no movement of the particles, and among the suspended solid particles, Or an adhesive material such as particles, tar, soot, or the like, which is tacky or hygroscopic due to reacting with moisture, is adhered to the tuyer 20, and in a severe case, the orifice 23 of the tuyer 20, The gas can not be injected through the tuyer 20 in the future.

The structure of the tuyer 20 according to an embodiment of the present invention is such that when the entirety of the tuyer 20 or the orifice 23 is closed or the diameter and the number of the orifice 23 need to be changed depending on the kind of the solid particles The tuyer 20 can be replaced with the gas distributor 10 and can be detachably attached thereto.

FIG. 5A is a cross-sectional view of a hemispherical tuyer 20 having a structure removably attachable to a body of a gas distribution plate 10 according to an embodiment of the present invention. 5B is a cross-sectional view of the body of the gas distribution plate 10 and the semi-cylindrical type tuyer 20 separated from each other in FIG. 5A. 5C is a cross-sectional view of a hemispherical tuyer 20 having a structure that can be detachably attached to a body of a gas distribution plate 10 according to an embodiment of the present invention and in which a gas injection tube 22 protrudes inside. FIG. 5D is a cross-sectional view of the body of the gas distribution plate 10 and the hemispherical tuyer 20 separated from each other in FIG. 5C.

5A and 5B, according to an embodiment of the present invention, in the structure of the tuyer 20 shown in FIG. 4A mentioned above, the outer circumferential surface on the lower side of the gas injection pipe 22 and the outer surface of the gas distribution plate 10 It can be seen that the hemispherical tuyer 20 can be detachably attached to the gas distribution plate 10 by forming a thread in the mounting hole of the gas distribution plate 10. 5c and 5d, according to an embodiment of the present invention, the gas injection pipe 22 shown in FIG. 4b may be inserted into the tuyere body 21 at a specific height H, A thread is formed in the outer peripheral surface on the lower side of the gas injection pipe 22 and the mounting hole of the gas dispersion plate 10 so that the hemispherical tuyer 20 is inserted into the gas distribution plate 10, As shown in Fig.

Therefore, by employing such a configuration, when the entire tuyer 20 or the orifice 23 is closed, or when it is necessary to replace the tuyer 20 with the number or diameter of the other orifices 23, The new hemispherical tuyer 20 can be replaced.

However, even in the case of the hemispherical tuyer 20 detachable to the gas distribution plate 10 shown in Figs. 5A, 5B, 5C and 5D, it is impossible to clean and clean the inside of the tuyer 20, The entirety of the tuyer 20 must be manufactured and replaced, which results in a problem that the cost is considerably consumed.

6A is a cross-sectional view of a hemispherical tuyer 20 having a structure in which a tuyere body 21 and a gas injection tube 22 are detachably attached according to an embodiment of the present invention. FIG. 6B is a cross-sectional view of the tuyere body 21 and the gas injection tube 22 separated from each other in FIG. 6A. 6C is a cross-sectional view of a hemispherical tuyer 20 having a structure in which a tuyere body 21 and a gas injection tube 22 are detachably mountable and a gas injection tube 22 is projected into the tuyere body 21 according to an embodiment of the present invention. Fig. 6D is a cross-sectional view of the tuyere body 21 and the gas injection tube 22 separated from each other in FIG. 6C.

As shown in Figs. 6A and 6B, in the hemispherical tuyer 20 having the structure of Fig. 4A, the tuyere body 21 and the gas injection tube 22 are detachably attached to each other Structure. 6C and 6D, in the hemispherical tuyer 20 having the structure shown in FIG. 4B, the tuyere body 21 and the gas injection tube 22 are connected to each other It can be seen that it can be constructed as a detachable structure.

The attachment and detachment member 30 may be a threaded structure as shown in FIGS. 6A, 6B, 6C, and 6D, and may include a separate locking, docking device, And the tuyere body 21 can be detachably attached to each other, the specific shape and structure can not be limited to the scope of the present invention.

6A and 6B, the attachment / detachment member 30 includes an upper outer peripheral surface of the gas injection tube 22 and a tiered body 21 to be brought into contact with the gas injection tube 22, The gas injection pipe 22 and the tubular main body 21 are screwed to each other so that they can be detachably attached to each other. 6C and 6D, a thread is formed on the outer circumferential surface on the intermediate side of the gas injection pipe 22 and the lower surface of the tuyer main body 21 to be brought into contact with the gas injection pipe 22 The gas injection pipe 22 and the tuyere body 21 are screwed together so that they can be detachably attached to each other.

In addition, the tuyere body 21 and the gas injection pipe 22 can be detachably attached to the gas distribution plate 10 and the gas injection pipe 22 can be detachably attached to the gas distribution plate 10 And the gas distribution plate 10 and the gas injection pipe 22 may be integrally formed by welding or the like.

The tuyere body 21 and the gas injection tube 22 can be detachably attached to the tuyere body 21 so that the hemispherical tuyer 20 can be manufactured easily and at a low cost. It is possible to prevent the solid particles from accumulating and to keep the solid particles from flowing into the tuyer 20 and to prevent the solid particles from entering the inlet chamber 3, The tubular body 22 and the tubular main body 21 can be detachably attached to each other so that when the hemispherical tubular 20 and the orifice 23 are closed, the tubular main body 21 is detached and easily cleaned and cleaned .

The tuyer body 21 formed with the orifice 23 can be detachably attached to the gas injection tube 22 so that the gas and the diameter of the opponent formed on the tuyer body 21 are changed to change the type of solid particles It is possible to easily change and change the gas distribution condition according to the gas distribution condition.

7A is a cross-sectional view of a hemispherical tuyer 20 having a detachable structure of a tuyer body 21 according to an embodiment of the present invention, and Fig. 7B is a cross- Are separated from each other. 7C is a cross-sectional view of a hemispherical tuyer 20 having a structure in which a tuyere body 21 according to an embodiment of the present invention is detachably mountable and a gas injection tube 22 is protruded inward. FIG. 7D is a cross-sectional view of the tubular main body 21 separated from each other in FIG. 7C.

As shown in Figs. 7A and 7B, in the hemispherical tuyer 20 having the structure of Fig. 4A mentioned above, the tuyere body 21 can be detachably attached to two or more of them using the attachment / . As shown in FIGS. 7C and 7D, in the hemispherical tuyer 20 having the structure of FIG. 4B, the tuyere body 21 can be detachably attached to two or more Can be configured.

Such a removable member 30 may be a threaded structure as shown in FIGS. 7A, 7B, 7C and 7D and may be separated into two or more such as a separate locking, docking device or pin and insertion groove structure Member, or means capable of detachably attaching the tuyer main body 21 to each other, the specific shape and structure thereof can not be limited to the right scope of the present invention.

7A, 7B, 7C, and 7D, the attachment / detachment member 30 is disposed on the upper side outer circumferential surface of the lower side tierer main body 21-2, Side tuyere body 21-2 and the lower side outer surface of the upper tuyer body 21-1 which are in contact with the upper side outer surface of the lower tuyer body 21-2, And the side tubular main body 21-1 are screwed together so that they can be detachably attached to each other.

In addition, the tuyere main bodies 21-1 and 21-2 can be detachably attached to each other, and at the same time, a detachable structure can be employed between the gas distribution plate 10 and the gas injection tube 22 And the gas distribution plate 10 and the gas injection pipe 22 may be integrally formed by welding or the like.

Accordingly, since the tuyere main bodies 21-1 and 21-2 can be detachably attached to each other, the tandem main body 21 can be manufactured easily and at a low cost, which is an advantage of the hemispherical tuyere, It is possible to prevent the solid particles from flowing into the tuyer 20 and to prevent the solid particles from being introduced into the inlet chamber 3 while maintaining the characteristics that the solid particles can flow into the inlet chamber 3, The upper tier main body can be detached from the lower tier main body to easily clean and clean the inside when the hemispherical tier and the orifice 23 are closed.

It should be noted that the above-described apparatus and method are not limited to the configurations and methods of the embodiments described above, but the embodiments may be modified so that all or some of the embodiments are selectively combined .

1: Fluidized bed reactor
2: Solid flow chamber
3: Gas entry
10: gas distribution plate
11: Perforated plate
12: Perforated plate
13: hole
14: Nozzle Type Tailor
15: Bubble Cap Tire
20: hemispherical tube
21:
21-1: upper side tier body
21-2: Lower Tier Body
22: gas injection tube
23: Orifice
30:

Claims (9)

In a tuyer provided in a gas distribution plate of a fluidized bed reactor,
A gas injection pipe connected to a mounting hole formed in a gas distribution plate for partitioning a solid flow chamber and a gas inlet chamber of the fluidized bed reactor into which the gas is injected;
The upper surface of which has a convexly curved hemispherical upper surface and is provided at one side of the side surface to discharge the gas of the inner space into the solid flow chamber A tuyer main body having an orifice formed therein; And
And a detachable member for detachably attaching the gas injection pipe and the tuyere body.
The method according to claim 1,
And the discharge angle of the gas discharged from the orifice is inclined to the lower side.
3. The method of claim 2,
The gas injection tube includes:
And the upper end of the gas injection pipe is protruded by a predetermined height from the inner space of the tubular main body.
The method of claim 3,
Wherein the gas injection pipe is detachably attachable to the gas distribution plate.
In a tuyer provided in a gas distribution plate of a fluidized bed reactor,
A gas injection pipe connected to a mounting hole formed in a gas distribution plate for partitioning a solid flow chamber and a gas inlet chamber of the fluidized bed reactor into which the gas is injected;
The upper surface of which has a convexly curved hemispherical upper surface and is provided at one side of the side surface to discharge the gas of the inner space into the solid flow chamber A tuyer main body having two or more separated members joined together; And
And a detachable member for detachably attaching two or more separate members constituting the tuyer main body.
6. The method of claim 5,
In the tuyer body,
An upper tuyer main body having a hemispherical upper surface curved convexly toward the upper side and having a detachable member at its lower end, a lower end tuyere body connected to the gas injection tube, an orifice formed on one side, And a detachable lower side tuyer main body.
The method according to claim 6,
The gas injection tube includes:
And the upper end of the gas injection pipe is protruded by a predetermined height from the inner space of the tubular main body.
8. The method of claim 7,
Wherein the gas injection pipe is detachably attachable to the gas distribution plate.
6. The method of claim 5,
And the discharge angle of the gas discharged from the orifice is inclined to the lower side.

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