KR20130031679A - A sealing apparatus for a high-temperature rotary kiln - Google Patents

Abstract

The present invention relates to a cooling sealing device for a rotary kiln, and for this purpose, a rotary kiln comprising a rotary kiln and a chamber connected to the rotary kiln to discharge the generated gas generated in the rotary kiln, wherein the rotary An air-cooled jacket coupled to the outer circumferential surface of the product gas discharge side of the kiln; and protrudingly coupled to the outer circumferential surface of the product gas inlet side of the chamber in the axial direction of the rotary kiln, and the air-cooled jacket to be inserted to guide the discharge side of the air-cooled jacket. Water-cooled jackets of relatively larger diameter than the jacket; And connecting means coupled between the rotary kiln and the chamber and coupled between the water-cooled jacket and the air-cooled jacket to prevent thermal deformation.

Description

 Cooling seal device of rotary kiln {A SEALING APPARATUS FOR A HIGH-TEMPERATURE ROTARY KILN}

The present invention relates to a cooling seal apparatus of a rotary kiln, and more particularly, the rotary kiln and a chamber for discharging the generated gas generated in the rotary kiln are connected to each other by means of a connecting means. The present invention relates to a cooling seal device of a rotary kiln configured to withstand high heat of a rotary kiln by being sealed between an air-cooled jacket and a water-cooled jacket respectively coupled to a rotary kiln and a chamber.

In general, a sealing device is installed to connect a rotary kiln and a chamber portion, which is a rear end facility for discharging the generated gas generated in the rotary kiln. Such a seal device is provided to prevent the outflow of the generated gas or the penetration of external air, especially inside the rotary kiln, which rotates at low speed.

The generated gas produced in the rotary kiln includes a combustion gas generated during the combustion of industrial waste, and a synthesis gas extracted by pyrolysis of coal, depending on the use.

In addition, because the chamber combined with the rotary rotary kiln remains relatively stationary, the toxic gas of industrial wastes or syngas extracted from coal are leaked, which not only corrodes the surrounding equipment but also has a great influence on the toxic smell and the surrounding environment. Therefore, a countermeasure against leakage is required.

Suitable sealing methods for such rotary rotary kilns are mechanical sealing and grand packing. In the case of mechanical sealing, although the service life is long, the installation cost is very expensive and maintenance is difficult compared to the grand packing. there was.

On the other hand, in the case of grand packing, the packing material (composite material of Teflon and asbestos) cannot be used at more than 280 ℃, so in high temperature processes such as coal devolatilization, the life is very short, but the maintenance is easy, and the installation cost is high for mechanical sealing. It has the advantage of being cheap.

Therefore, there is a need for a sealing device using a grand packing which is cheap and easy to maintain as a sealing device for rotary kilns operated at a high temperature of 600 ° C. or higher.

The present invention has been made in view of the above problems, the first object of the present invention is to seal and connect the rotary rotary kiln and the chamber for discharging the generated gas generated in the rotary kiln by means of connecting means (媒介) The connecting means is provided between the air-cooled jacket and the water-cooled jacket coupled to the rotary kiln and the chamber, respectively, to provide a cooling seal device of the rotary kiln configured to withstand the high heat of the rotary kiln.

It is a second object of the present invention to provide a cooling seal device for a rotary kiln using grand packing, which is inexpensive and easy to maintain.

The third object of the present invention consists of three components of the connecting means (support flange, grand packing, pressing flange) and two components of cooling the grand packing of the connecting means (water cooling jacket, air cooling jacket) It is to provide a cooling seal device of a rotary kiln with a very simple structure and easy maintenance.

According to a feature of the present invention for achieving the object as described above, the first invention consists of a rotary rotary kiln, and a chamber connected to the rotary kiln to discharge the generated gas generated in the rotary kiln A rotary kiln apparatus, comprising: an air-cooled jacket coupled to an outer circumferential surface of a product gas discharge side of the rotary kiln; and protrudingly coupled to the outer circumferential surface of a product gas inlet side of the chamber in the axial direction of the rotary kiln, and discharging the discharge side of the air-cooled jacket. A water-cooled jacket having a larger diameter than the air-cooled jacket so as to be guided and inserted; And connecting means coupled between the rotary kiln and the chamber and coupled between the water-cooled jacket and the air-cooled jacket to prevent thermal deformation.

The second invention, in the first invention, it is preferable that the air-cooled jacket further comprises a plurality of through-holes at one end such that the external air communicates with the inside.

" 형상의 지지플랜지와, 상기 공냉식자켓의 외주면에 끼움결합되어 상기 지지플랜지의 내부에 밀착되는 그랜드패킹과, 상기 지지플랜지와 공냉식자켓의 사이로 삽입되어 지지플랜지에 밀착된 그랜드패킹을 압박하여 시일할 수 있도록 단면이 "

" 형상의 압박플랜지로 구성되는 것이 바람직하다.
In the third invention, in the first invention, the connecting means has a cross section seated on the inner circumference of the water-cooled jacket.

"Support flange of the shape, the gland packing is fitted to the outer circumferential surface of the air-cooled jacket to be in close contact with the inside of the support flange, the gland packing is inserted between the support flange and the air-cooled jacket to seal the pressing seal So that the cross section is "

It is preferable that it consists of a pressing flange of the shape ".

In the fourth invention, in the third invention, the pressing flange is preferably bolted to the support flange so that the chamber and the rotary kiln can be fixed by adjusting the pressing degree of the grand packing.

The fifth invention, in the third invention, it is preferable that the inner circumference of the water-cooled jacket further comprises a step so that the support flange can be seated.

The cooling seal device of the rotary kiln according to the present invention uses an air-cooled jacket and a water-cooled jacket to cool the grand packing on a rotary kiln operated at 600 ° C. or more, so that the life of the grand packing can be improved to one year or more. In addition, there is the convenience of maintenance and low economical cost of the grant packing.

In addition, it consists of three components of the connecting means (support flange, grand packing, compression flange) and two components of cooling the grand packing of the connecting means (water-cooled jacket, air-cooled jacket) and the structure is very simple and maintenance Since it is convenient, there is an effect that can improve the operation of the rotary kiln.

1 is a perspective view of a cooling seal device of an applied rotary kiln of the present invention;
Fig. 2 is an exploded perspective view of Fig. 1,
3 is a cross-sectional view of FIG.
4 is a cooling operation of the cooling seal device of the rotary kiln according to FIG.
5 to 8 is a flow chart of the assembly of the cooling seal device of the rotary kiln according to the present invention.

Hereinafter, with reference to the accompanying drawings with respect to the cooling seal device of the rotary kiln according to the present invention will be described in detail.

1 is a perspective view of a cooling seal apparatus of an applied rotary kiln of the present invention, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is a cross-sectional configuration of Figure 1, Figure 4 is a cooling seal of the rotary kiln according to Figure 3 Cooling operation of the device.

As shown in Figures 1 to 4, the present invention seals and connects the rotary rotary kiln and the chamber for discharging the product gas through the connecting means, and the connecting means are respectively coupled to the rotary kiln and the chamber. The present invention relates to a cooling seal device of a rotary kiln configured to withstand high heat of a rotary kiln by being sealed between an air-cooled jacket and a water-cooled jacket.

In addition, the cooling seal device of the rotary kiln of the present invention, the connection means 30 interposed between the air-cooled jacket 20 and the water-cooled jacket 10 can be cooled in real time to prevent thermal deformation to extend the life. Rather, the grand packing 30, which is one of the components of the connecting means 30, is axially compressed to have the same sealing ability at all times even when worn by friction with the rotary kiln 100.

Here, the rotary kiln 100 and the chamber 200 are structured to be coupled to each other through the connecting means 30 to induce and discharge the generated gas.

The rotary kiln 100 has a structure in which the air-cooled jacket 20 is integrally coupled to the outer peripheral surface of the discharge side of the generated gas generated therein.

The air-cooled jacket 20 has a structure in which a plurality of through-holes 21 are formed at one end so that external air communicates with the inside.

Here, the air-cooled jacket 20 has a shape in which the other end of the discharge side of the generated gas is closed, and one end is formed with a plurality of through holes 21 by drawing an arc along the outer circumferential surface of the rotary kiln 100.

Since the through-hole 21 is formed on one end surface of the air-cooled jacket 20, as the air-cooled jacket 20 rotates, it provides a structure that can radiate heat while the outside cold air naturally diffuses and convections into the inside.

In addition, the water-cooled jacket 10 is protrudingly coupled to the outer circumferential surface of the product gas inlet side of the chamber 200 in the axial direction of the rotary kiln 100, so that the air-cooled jacket 20 can be guided and inserted into the discharge side. It is a structure having a relatively larger diameter than the air-cooled jacket (20). The shape of the water-cooled jacket 10 is a structure for forming a gap (G) so that the connecting means 30 is interposed between the air-cooled jacket (20).

The water-cooled jacket 10 is coupled to the fixed chamber 200 is configured to circulate the coolant inside to dissipate heat transferred from the rotary kiln 100.

In addition, the connection means 30 is to seal the rotary kiln 100, which is interposed between the air-cooled jacket 20 and the water-cooled jacket 10 with respect to the chamber 200, the support flange 31 and , The grand packing 30 and the pressing flange (32).

" 형상을 취한다. Here, the support flange 31 has a cross section seated on the inner circumference of the water-cooled jacket 10.

Take shape.

In addition, the water-cooled jacket 10 also includes a step 11 to allow the support flange 31 to be seated on the inner circumference.

This structure is the structure of the water-cooled jacket 10 and the support flange 31 is seated on the inner circumference of the water-cooled jacket 10 while wrapping the other end of the support flange 31 not to be in close contact with the outer peripheral surface of the rotary kiln (100). It can be a structure.

In addition, the grand packing 30 is a "ring" shape, it is coupled to the outer peripheral surface of the air-cooled jacket 20 of the rotary kiln (100). This structure is a structure in which the surface is installed at a distance from the hot rotary kiln 100 and the grand packing 30 so that heat transfer can be reduced.

The grand packing 30 is inserted into the inner circumferential surface of the water-cooled jacket 10 when the air-cooled jacket 20 coupled to the discharge side of the rotary kiln 100 is the grand packing 30 step 11 of the water-cooled jacket (10) It is a structure that is in close contact with the inside of the support flange 31 seated on the).

" 형상을 취한다.In addition, the pressing flange 32 is inserted between the support flange 31 and the air-cooled jacket 20, the cross section so that the seal by pressing the grand packing 30 in close contact with the support flange 31.

Take shape.

That is, the pressing flange 32 is a circular pressing frame 321 extending in the axial direction of the rotary kiln 100 is inserted between the support flange 31 and the air-cooled jacket 20 to the grand packing 30 The support frame 322 vertically orthogonally extended to the pressing frame 321 is fastened to the other end of the support flange 31 seated on the inner circumferential surface of the water-cooled jacket 10 and bolts B are connected to each other. 321 adjusts the degree of compression of the grand packing 30, and provides a structure in which the rotary kiln 100 can be stably fixed with the seal relative to the chamber 200 according to the degree of compression.

That is, the grand packing 30 is an air-cooled jacket 20 on the inside, and the water-cooled jacket 10 on the outside can cool the heat transferred from the rotary kiln 100 to the low-cost grand packing ( 30) This low thermal stability problem can be solved.

In addition, even if the grand packing 30 is worn, the pressing flange 32 can continuously compress the grand packing 30 to improve the life of the grand packing 30.

In addition, it consists of three components (support flange, grand packing, pressing flange) of the connecting means 30, and two components (water cooling jacket, air cooling jacket) for cooling the grand packing 30 of the connecting means Because of the very simple and convenient maintenance can improve the operability of the rotary kiln (100).

In addition, in the rotary kiln 100 operated at 600 ° C. or more, the life of the grand packing 30 is about 60 days, whereas in the present invention to which the air-cooled jacket 20 and the water-cooled jacket 10 are applied, Lifespan can be improved to over 1 year.

Hereinafter, the assembly procedure of the cooling seal device of the rotary kiln according to the present invention will be briefly described.

5 to 8 is a flow chart of the assembly of the cooling seal device of the rotary kiln according to the present invention.

First, as shown in FIG. 5, the pressing flange 32 is coupled to the outer circumferential surface of the air-cooled jacket 20 formed on the discharge side of the rotary kiln 100.

And, as shown in Figure 6, by coupling the grand packing 30 to the outer peripheral surface of the air-cooled jacket 20 so that the pressing flange 32 is disposed on one side.

Next, as shown in Figure 7, the support flange 31 is inserted into the step 11 of the water-cooled jacket 10 coupled to the chamber 200.

Next, as shown in Figure 8, the discharge side of the rotary kiln 100 is inserted into the water-cooled jacket 10 of the chamber 200, the pressing frame 321 of the pressing flange 32 is the water-cooled jacket (10) And the grand packing 30 inserted into the outer circumferential surface of the air-cooled jacket 20, and the inside of the support flange 31 seated on the step 11 of the water-cooled jacket 10. Enter to be in close contact with

Finally, the support frame 322 of the pressing flange 32 is fastened to the other end of the support flange 31 seated on the step 11 of the water-cooled jacket 10 and bolts B to allow the pressure frame 321 to be grand-packed. Adjust the degree of compression of the 30, and also to allow the rotary kiln 100 to be stably fixed with the seal relative to the chamber 200 in accordance with the degree of compression.

Although the present invention has been described in connection with the preferred embodiments mentioned above, various other modifications and variations will be possible without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims are intended to cover such modifications and changes as fall within the true scope of the invention.

10: water-cooled jacket 11: step
20: air-cooled jacket 21: through-hole
30: connecting means 31: support flange
32: pressure flange 321: pressure frame
322 support frame
33: Grand Packing
100: rotary kiln 200: chamber
B: bolt G: gap

Claims (5)

In the rotary kiln device consisting of a rotary kiln (100) and a chamber (200) connected to the rotary kiln (100) to discharge the generated gas generated in the rotary kiln (100),
An air-cooled jacket 20 coupled to the outer circumferential surface of the product gas discharge side of the rotary kiln 100;
Protrudingly coupled to the outer circumferential surface of the product gas inlet side of the chamber 200 in the axial direction of the rotary kiln 100, relative to the air-cooled jacket 20 to be inserted to guide the discharge side of the air-cooled jacket (20). A large diameter water-cooled jacket (10); And
A connecting means 30 coupled between the rotary kiln 100 and the chamber 200 and coupled between the water-cooled jacket 10 and the air-cooled jacket 20 to prevent thermal deformation. Cooling sealing device of the rotary kiln, characterized in that configured.
The method of claim 1,
The air-cooled jacket 20 further comprises a plurality of through-holes 21 at one end so that external air communicates with the inside.
The method of claim 1,
The connecting means 30 is a cross-section that is seated on the inner circumference of the water-cooled jacket 10 "

"Shaped support flange 31, the gland packing 30 is fitted to the outer circumferential surface of the air-cooled jacket 20 is in close contact with the inside of the support flange 31, the support flange 31 and the air-cooled jacket ( 20, the cross section is inserted so as to press and seal the grand packing 30 in close contact with the support flange 31.

Cooling device of the rotary kiln, characterized in that consisting of a pressing flange (32) of the shape.
The method of claim 3, wherein
The pressing flange 32 is characterized in that the support flange 31 and the bolt (B) is fastened so that the chamber 200 and the rotary kiln 100 can be fixed by adjusting the pressing degree of the grand packing 30. Cooling seal of rotary kiln.
The method of claim 3, wherein
Cooling device of the rotary kiln, characterized in that the inner periphery of the water-cooled jacket 10 further comprises a step 11 so that the support flange 31 can be seated.

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