RU1838374C - Bond in coke quenching chamber - Google Patents

Abstract

Usage: coke production, namely laying of thermal units, for example laying of a dry coke quenching chamber, laying of thermal units related to other industries: roasting, heating, smelting, etc. Summary of the invention: laying of a quenching chamber in a dry coke quenching device ( USTK) contains external heat-insulating and internal lining (refractory) layers enclosed in a metal casing of cylindrical shape, while the masonry is made along the height of these layers in the form of of these pairs of blocks of 2 types, one of which is equipped with a protrusion, the other with a hollow, the ratio of the outside of the block laid close to the casing, to the side of the block facing the fire chamber (in plan) is not less than or equal to 1.1, the ratio the thickness of the block of the inner lining layer to the thickness of the outer insulating layer is 0.3-0.6, respectively. the ratio of the inner diameter of the masonry to the extinguishing chamber to the outer diameter is 0.7-0.9, respectively. 1 s, p. f-ly. 7 ill. Ј

Description

FIELD OF THE INVENTION The invention relates to coke-chemical industry. Namely, to masonry of thermal units, for example, to masonry of a coke-extinguishing chamber, and can be used in masonry of thermal units, related to other industries.

The aim of the invention is to increase the overhaul life of the masonry by increasing its structural strength and wear resistance.

The goal is achieved in that in a known masonry of a fire extinguishing chamber containing an outer heat-insulating and inner lining (refractory) layer enclosed in a metal shell of a cylindrical shape, according to the invention, said layers along the height of the masonry are made of paired blocks placed along the parallel pairs. In this case, the ratio of the width of the outer side of the block laid close to the casing to the width of the side of the block facing the inside of the quenching chamber is at least 1.1, the ratio of the thickness of the block of the inner lining layer to the thickness of the outer heat-insulating layer is, respectively. 0.3-0.6. The ratio of the inner diameter of the masonry chamber to the outer diameter is

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0.7-0.9. In addition, the block of the conjugated pair forming the insulating layer is provided with a protrusion, the block forming the lining layer is depressed, and when laying the conjugated pair of blocks with Russes along the height of the quenching chamber, each depression of one block forms the top face of the other is a notch.

The implementation of the blocks of the above configuration, their pairwise mating along the height of the masonry of the quenching chamber made it possible to obtain a labyrinth seam, which achieves the greatest monolithic masonry and maximum resistance to gas passage. At the same time, each block has a different width of the sides (inner and outer) in the radial direction, which, in turn, depends on the diameter of the braising chamber. This allows you to have a wedge connection of the blocks in plan, around the perimeter of the chamber.

The optimum ratio of the block sizes along its width, the ratio of the thicknesses of the blocks of the inner layer of the masonry of the quenching chamber and the blocks of the outer layer are chosen experimentally so as to create the necessary structural strength and wear resistance of the masonry of the chamber.

The aspect ratio of the block in width 1.1 can lead to the loss of concrete block inside the chamber. The thickness of each layer of the extinguishing chamber masonry also influences the provision of the required building strength and abrasion resistance.

In order to determine the lining thickness of the optimum dimensions, as well as to calculate the minimum possible consumption of expensive materials, it is necessary that the ratio of the internal diameter of the extinguishing chamber to the outer be within 0.7-0.9.

The ratio of the thickness of the blocks of the inner layer to the thickness of the blocks of the outer layer of 0.3 or 0.6 will lead in the first case to an insufficiently strong, quickly destructible inner layer, in the second case - it is not economically justified - it leads to an increased consumption of expensive concrete.

Comparative analysis with the prototype shows that the laying of the fire-fighting chamber differs from the configuration of refractory concrete blocks known for the two-layer laying of the fire-fighting chamber, known for its hollows and protrusions in the green concrete blocks, their structural dimensions, as well as the layout in p dah.

In FIG. 1 shows the masonry of the USTK chamber (all zones in height) with concrete blocks. In the masonry of the stewing chamber, a vertical section; figure 2 - layout of the blocks of each

Rus in the plan; in Fig.Z - complete blocks, vertical section; Fig. 4 is a refractory block of a lining layer; figure 5 is the same, a top view; Fig. 6 is a refractory block of a heat insulating layer; Fig.7 is the same

0 top view.

The masonry of the fire extinguishing chamber 1 contains an outer heat-insulating layer 2 and an inner lining layer 3 (refractory layer) enclosed in a metal casing

5 4 cylindrical in shape. These salts, according to the invention, are made of refractory concrete blocks 5, 6 placed in rim-matched pairs. The ratio of the width of the outer side 7 of block b laid close to the casing 4 to the width of the side 8 of block 5 facing the inside of the braising chamber 1, c plan is at least 1.1. The ratio of the thickness of the block 5 of the inner lining layer 3 to the thickness of the block 6

5 of the outer insulating layer 2 is 0.3-0.6, respectively.

The masonry diameter of the fire fighting chamber is a connecting factor between the performance of the fire fighting chamber and its

0 constructive dimensions. The ratio of the inner diameter of the masonry to the extinguishing chamber to the outer diameter is 0.7-0.9.

Concrete block 5 has a protrusion 9, and concrete block 6 has a depression 10. When laying a pair of blocks 5, 6 with Russes along the height of the braising chamber 1, depression 10 and the upper face of block 5 forms a recess 11.

Double-layer stewing chamber masonry

0

coke is carried out from the bottom up by the Rus, with

ligation pair of blocks 5, 6 in the horizontal and vertical planes. Close to the casing 4, a block 6 of insulating layer 2 is laid on a brick or concrete preparation. Then, a concrete block 5 of the lining layer 2 is installed. When the first pair of the first channel of blocks 5, 6 is installed, the cavity 10 and the upper face of block 5 form a cavity 11. After that install the following

0 a pair of blocks 5, 6: first block 6, and into the formed cavity 11 block 5. And thus, in Russ along the height of the braising chamber, each pair of blocks 5.6 is installed, form a thermal insulation layer 2 and a lining layer 3.

The specified set of features of the claimed masonry of the fire extinguishing chamber is interconnected and allows to increase the service life of the masonry by 20-30% due to an increase in the building strength and wear resistance of the masonry of the fire chamber.

Technical appraisal and economic benefits when using the proposed masonry of the CCUTT fire-fighting chamber are due to the increased duration of the chamber without repairing its lining (masonry life increased from 6 to 9 years). This is achieved by increasing the building strength and wear resistance of the masonry by reducing the joints in the masonry, making labyrinth material joints (eliminating continuous long joints in the form of concentric circles in the prototype), as well as by wedging the concrete blocks along the perimeter of the fire chamber. When wedging, each block transfers forces to the other two, and so on in arithmetic progression. Therefore, the blocks are evenly pressed against each other.

Additional advantages are reduced repair costs with a reduction in their duration (from 30 to 5-8 days); increase the productivity of the chamber by reducing (on average by 20-25 days) the time for installation of the lining; an increase in tightness and (as a result, a reduction in gas leaks leading to coke burnout and destruction of the metal casing.

Claims (2)

1. The masonry of the coke quenching chamber, containing the outer heat-insulating and the inner lining refractory layers enclosed in a cylindrical metal casing, characterized in that, in order to increase the overhaul life of the masonry by increasing its strength and durability, the layers are made along the height of the masonry of the paired units of the blocks placed in a row, and the ratio of the width of the outer side of the block laid flush to the casing to the width of the side of the block facing the inside of the braising chamber was Is not less than 1.1, the ratio of the thickness of the block of the inner lining layer to the thickness of the outer heat-insulating layer is 0.3-0.6, and the ratio of the inner diameter of the masonry to the outer diameter is 0.7-0.9. 2. A masonry according to claim 1, characterized in that the conjugate pair block forming the heat-insulating layer is provided with a protrusion, the block forming the lining layer has a depression, and the conjugate pairs of blocks are placed in Russes along the height of the quenching chamber with the formation of each the depression of one block of the recess with the upper face of the other block. G /// 1 Refractory - on / ynav Refractory concrete Fig. / General View Intent / USGY 10 xJ L figure 4 s fs. 5 fi g. 6 / 7 Fig.7