RU90472U1 - METAL SELF-SUPPORTING SMOKE PIPE - Google Patents

Abstract

1. A metal self-supporting chimney containing a barrel with a lining on the inner surface of rigidly mounted blocks, characterized in that the blocks are made in the form of modular blocks of refractory fiber. ! 2. The metal self-supporting chimney according to claim 1, characterized in that the modular blocks are made in the form of parallelepipeds. ! 3. The metal self-supporting chimney according to claim 1, characterized in that the modular blocks are made of roll refractory fiber, packed layer by layer with an "accordion" in a technological shell with an open top on the side facing the inner surface of the chimney barrel. ! 4. The metal self-supporting chimney according to claim 3, characterized in that the modular blocks are equipped with elements for rigid connection with the inner surface of the chimney barrel, made in the form of metal brackets with ends bent at right angles to the top of the bracket, recessed into a modular block with the fiber layers are cut out, and the upper part of the bracket is adjacent to the side of the block with the transverse element of the bracket in the plane of the surface of the side of the modular block facing the inner surface of the chimney barrel , for connection with the latter by welding.

Description

The utility model relates to the field of construction of metal self-supporting chimneys, and can find application in the installation of metal self-supporting chimneys operating on a self-pull with high-temperature flue gases.

Known metal self-supporting chimney, selected by the applicant as a prototype, containing a barrel, a lining on the inner surface of the barrel of rigidly mounted blocks (packages). Blocks (packages) are made of piece (rigid) heat-insulating elements, in particular, lime-siliceous products (tiles), fastened with vertical fixing rods and bordering corner elements. The bags are also equipped with a flexible heat-insulating coating (from mullite-siliceous felt), in the folds of which piece heat-insulating elements are located. The packages are connected to the inner surface of the barrel through paired horizontal brackets that can be connected to vertical fixing rods (see the description of the invention SU No. 1470920 A1, from 24.08.87, publ. 07.04.89).

The disadvantages of the prototype include the high complexity of the installation of the chimney associated with the implementation of blocks (packages) of the lining of piece (hard) heat-insulating products (tiles), with their installation in the folds of a flexible coating, with an additional adjustment of the tiles (trim) to get (fit) to the size of the chimney, with fixing them with vertical locking rods and bordering corner elements.

In addition, such a lining of piece (rigid) thermal insulation products has a large bulk weight and high thermal conductivity.

The technical result of the proposed solution is to reduce the complexity of mounting the lining on the inner surface of the barrel of a metal self-supporting chimney and improve the operational characteristics of the chimney by reducing the thermal conductivity of the lining.

To achieve the technical result in a known metal self-supporting chimney containing a barrel with a lining on the inner surface of rigidly mounted blocks, according to a utility model, the blocks are made in the form of modular blocks of refractory fiber.

Modular blocks can be made in the form of a parallelepiped.

The modular blocks are made of roll refractory fiber, packed in layers “accordion” in a technological shell with an open top on the side facing the inner surface of the chimney barrel.

The modular blocks are equipped with elements for rigid connection with the inner surface of the chimney barrel, made in the form of metal brackets with ends bent at right angles to the upper part of the bracket, recessed into a modular block with cut-out fiber layers, and the upper part of the bracket adjacent to the side of the block with the arrangement the transverse element of the bracket in the plane of the surface of the side of the modular unit facing the inner surface of the chimney barrel, for connection with the latter by welding.

The proposed utility model reduces the complexity and simplifies the installation of a metal self-supporting chimney when lining from modular blocks made of refractory fiber:

- modular blocks of refractory fiber are applicable for chimneys of any overall dimensions without additional processing of the blocks. Installation of modular blocks in size is achieved by compaction of the blocks;

- modular blocks have insignificant (small) weight;

- modular blocks can be manufactured in the factory;

- eliminates the need for the use of highly qualified personnel in the installation of the proposed chimneys.

The lining of a metal self-supporting chimney from modular blocks made of refractory fiber also provides a decrease in the thermal conductivity of the lining, which improves the operational characteristics of the chimney. In addition, when installing a lining of modular blocks made of refractory fiber, there is no dust, and thus environmental problems are solved.

Conducted patent research did not reveal similar technical solutions, which allows us to conclude about the novelty of the claimed technical solution.

The domestic industry has all the means (materials, equipment and technology) necessary for the installation of metal self-supporting chimneys with the proposed lining on the inner surface of the chimney barrel and their wide use in various industries.

The essence of the utility model is illustrated by drawings, where:

figure 1 is a General view of the chimney (with a longitudinal section);

figure 2 is a General view of a fragment of the barrel with a lining of modular blocks;

figure 3 is a photo of a modular unit;

figure 5 is a photo of the bracket;

Metal self-supporting chimney 1, contains a barrel 2 with a lining 3 on the inner surface 4, made of rigidly mounted modular blocks 5 of refractory fiber. The modular blocks 5 are made in the form of a parallelepiped. Refractory fiber is mullite-siliceous, (for example, grade MKPP-130), or basalt fiber. The modular blocks 5 are made of rolled fiber, packed in layers "accordion" in a technological polyethylene shell with an open top on side 7, facing the inner surface 4 of the chimney 1.

The modular blocks 5 are equipped with elements for rigid connection with the inner surface 4 of the barrel 2 of the chimney 1 and are arranged in horizontal rows on the elements and can be separated by expansion spacers made of rolled mullite-siliceous (or basalt) fibers, with the fiber layers of the modular block being arranged perpendicular to the plane of the compensation spacers.

Elements for rigidly connecting the modular units 5 to the inner surface 4 of the barrel 2 of a metal self-supporting chimney 1 are made in the form of metal brackets 8 with the ends 8 bent at a right angle to the upper part 9 of the bracket 10, recessed into the modular unit 5 with cut-out fiber layers, the upper part 9 of the bracket 8 is adjacent to the side of the modular unit 5 with the transverse element 11 of the bracket 8 in the plane of the surface of the side 7 of the modular unit 5 facing the inner surface 4 of the chimney 1, for connection with the latter her by welding.

The proposed design of a metal self-supporting chimney 1 operates on a self-pull (at a speed of flue gases up to 10 m / sec.) With high-temperature (from 200 ° C and above) flue gases.

Lining is performed as follows.

Modular blocks 5 are prefabricated from a roll of mullite-siliceous (or basalt) fiber by packing it in layers “accordion” in the technological shell 6, leaving the top open on side 7 facing the inner surface 4 of the barrel 2 of the chimney 1;

Pre-manufactured elements for the rigid connection of modular units 5 with the inner surface 4 of the barrel 2 of the chimney 1 in the form of metal brackets 8 with ends 10 bent at right angles to the upper part 9 of the bracket 8.

The mentioned elements are mounted on modular blocks 5 by cutting through the ends of 10 metal brackets 8 layers of mullite-siliceous (or basalt) fiber and arranging the upper part 9 of the bracket 8 on the side of the modular block 5, and the transverse element 11 of the bracket 8 in the surface plane of the side 7 of the modular block 5, facing the inner surface 4 of the barrel 2 of the chimney 1.

Modular units 5 provided with said elements for rigid connection with the inner surface 4 of the barrel 2 of the chimney 1 are stacked in horizontal rows.

In the course of laying modular blocks 5, the transverse element 11 of the bracket 8 is welded to the inner surface 4 of the barrel 2 of a metal self-supporting chimney 1.

Modular blocks 5 and metal brackets 8 with ends 10 bent at right angles can be manufactured in the factory.

Currently, it is planned to build a metal self-supporting chimney of the proposed design N-75 m at OJSC MMK (mill 2000), Magnitogorsk.

Claims (4)

1. A metal self-supporting chimney containing a barrel with a lining on the inner surface of rigidly mounted blocks, characterized in that the blocks are made in the form of modular blocks of refractory fiber. 2. The metal self-supporting chimney according to claim 1, characterized in that the modular blocks are made in the form of parallelepipeds. 3. The metal self-supporting chimney according to claim 1, characterized in that the modular blocks are made of roll refractory fiber, packed layer by layer with an "accordion" in a technological shell with an open top on the side facing the inner surface of the chimney barrel. 4. The metal self-supporting chimney according to claim 3, characterized in that the modular blocks are equipped with elements for rigid connection with the inner surface of the chimney barrel, made in the form of metal brackets with ends bent at right angles to the top of the bracket, recessed into a modular block with the fiber layers are cut, and the upper part of the bracket is adjacent to the side of the block with the transverse element of the bracket in the plane of the surface of the side of the modular block facing the inner surface of the chimney barrel , for connection with the latter by welding.