RU47083U1 - ROTARY FIRMING LAYER MODULE - Google Patents

Abstract

The utility model relates to rotary kilns, in particular to structural elements of the lining, and can be used to protect the insulation layer and housings of rotary kilns in the production of building materials (cement, lime), in the metallurgical industry, in the pulp and paper industry, in the production of mineral fertilizers and other industries that use rotary kilns in their technological processes. Achievable technical result. - Reducing the heat load on the body of the rotary kiln, - protecting the heat-insulating layer (refractory brick, concrete, synthetic and mineral materials) of the rotary kiln from the mechanical effects of the calcining material and heat exchangers, - additional heat transfer between the calcining material and the modular lining of steel plates of the rotating kiln, - increasing the life of the insulating layer of a rotary kiln, - ease of transportation and installation of a modular lining in aschayuscheysya kiln. The essence of the utility model is as follows. The lining module of a rotary kiln containing a protective element is made in the form of a steel plate (1), which plays the role of an armor protection element and has the shape of a polygon, the sides of which are symmetrical about its central axis, and the size of the sides is selected depending on the diameter of the rotary kiln body wherein, in the steel plate (1), a through hole (2) is made, which serves to pass the fastening element of the lining module to the housing of the rotary kiln, and the fastening element represents bout steel rack (3) the shape and cross-sectional size of which is selected according to the shape and dimensions of the above through-hole (2) of the steel plate (1). The steel plate (1) may take the form of a hexagon, pentagon, quadrangle, parallelogram, square, triangle. The upper and lower surfaces of the steel plate (1) are made flat or spherical.

Description

The invention relates to rotary kilns, in particular to structural elements of the lining, and can be used for metal protection of the insulating layer and housings of rotary kilns in the production of building materials (cement, lime), in the metallurgical industry, in the pulp and paper industry, in the production of mineral fertilizers and other industries that use rotary kilns in their technological processes.

Currently, the lining of a rotary kiln is known, see the patent of the Russian Federation for invention No. 2199065 class. F 27 In 7/28, published on 02.20.2003 in the bulletin No. 5. In it, the lining is made of two layers of masonry laid in alternating circles of masonry, consisting of acidic and basic refractories and one layer of the main refractory. Its disadvantage is the short life of the lining, the complexity of its transportation and installation.

Known module lining of the furnace, see the patent of the Russian Federation for the invention No. 2094722 C. F 27 D 1/00, published October 27, 1997 in gazette No. 30. In it, the module contains vertically arranged plates of ceramic fibrous material and elements for forming the module in the form of two angular profiles with unequal shelves located in the upper part of the module along its side surfaces. Its disadvantage is also the short life of the lining and the complexity of its installation.

Also known are furnace lining modules made of heat-insulating material, see, for example, UK patent No. 2092285, class. F 27 D 1/00, published in 1982, patent EP No. 0134511, class. F 27 D 1/00, published in 1985. They have the same disadvantages: the short life of the insulating material and the difficulty of installing the lining.

A lining module for a rotary kiln containing a protective element is also known, see patent of the Russian Federation No. 2078792 class. F 27 D 1/00, published on 04/27/1997 in Bulletin No. 12. In it, the module consists of many assembled, sealed and pre-stressed panels of fibrous mats.

The disadvantages of the known lining module are:

- a large thermal load on the body of the rotary kiln;

- the mechanical effect of the fired material on the insulating layer;

- small heat dissipation from the calcined material;

- short life of the insulating layer of a rotary kiln;

- inconvenience of transportation and installation of a modular lining of a rotary kiln.

In the proposed utility model, the task is to create a lining module of a rotary kiln that would provide:

- reduction of heat load on the body of a rotary kiln;

- protection of the heat-insulating layer (refractory brick, concrete, synthetic and mineral materials) of the rotary kiln from the mechanical effects of the kiln material;

- additional heat transfer between the calcined material and the modular lining of steel plates of the rotary kiln;

- increase the life of the insulating layer of a rotary kiln;

- ease of transportation and installation of a modular lining of a rotary kiln.

The solution of the problem in the proposed utility model is provided due to the fact that the lining module of a rotary kiln containing a protective element is made in the form of a steel plate, which plays the role of armor protection and has the shape of a polygon, the sides of which are located symmetrically with respect to the central axis, and the size of the sides is selected depending from the diameter of the casing of the rotary kiln, while a through hole is made in the steel plate, which serves to pass the fastening element of the lining module to the whisker of a rotary kiln, and the mounting element is a steel rack, the cross section of which is selected in accordance with the shape and dimensions of the above through holes in the steel plate. In this case, the steel plate may be in the form of a hexagon, pentagon, quadrangle, parallelogram, square, triangle. Moreover, the upper and lower surfaces of the steel plate can be made flat or spherical.

The claimed lining module of a rotary kiln has a set of essential features unknown from the prior art for devices of this purpose, which allows us to conclude that the criterion of "novelty" for the utility model is met.

The device of the proposed utility model is illustrated using the attached drawings, which depict the following.

Figure 1 is a General view of the lining module in the form of a hexagon.

Figure 2 is a cross section of a lining module having a spherical surface.

Figure 3 is a General view of the lining module in the form of a pentagon.

Figure 4 is a General view of the lining module in the form of a quadrangle (square).

The essence of the utility model is as follows.

The lining module of a rotary kiln containing a protective element is made in the form of a steel plate (1), which plays the role of an armor protection element and has the shape of a polygon, the sides of which are symmetrical about the central axis, and the size of the sides is selected depending on the diameter of the lining of the rotary kiln wherein, in the steel plate (1), a through hole (2) is made, which serves to pass the fastening element of the lining module to the housing of the rotary kiln, and the fastening element is It is a steel rack (3), the shape and dimensions of the cross section of which are selected in accordance with the shape and dimensions of the above through hole (2) in the steel plate (1). The steel plate (1) may take the form of a hexagon, pentagon, quadrangle, parallelogram, square, triangle. The upper and lower surfaces of the steel plate (1) are made flat or spherical.

The operation of the proposed lining module is as follows.

The posts of the fastening element (3) are rigidly connected to the body of the rotary kiln so that their free ends pass through the heat-insulating layer. Steel plates are worn on them and welded to them. In this case, the steel plates form a continuous armor lining that protects the heat-insulating layer of the rotary kiln.

The proposed utility model can be repeatedly made on the basis of materials commercially produced by domestic and foreign industry using modern mastered technology and can be used at factories and enterprises engaged in the production of building materials, fertilizers, as well as at the enterprises of the metallurgical and pulp and paper industries that allows us to conclude that the utility model meets the criterion of "industrial applicability".

In accordance with the proposed utility model, the applicant makes and tests various options for the modules of the lining of a rotary kiln, which are supplied to various enterprises and factories. Their trial operation confirms the advantages of the claimed lining module.

Claims (1)

The lining module of a rotary kiln containing a protective element, characterized in that the lining module is made in the form of a steel plate, which plays the role of armor protection and having flat or spherical upper and lower surfaces and the shape of a polygon, the sides of which are located symmetrically with respect to the central axis, while the steel plate has a through hole, and the fastening element of the steel plate to the body of the rotary kiln, which is a steel rack passing through the specified holes , The cross-section of a steel rack is selected according to the shape and dimensions of the through holes in the steel plate.