SU122238A1 - Activation coal kiln - Google Patents

Description

Mine furnaces for activating coal with external heating using internal (bulk) and combined heating are known. Gas-vapor mixtures are used for this purpose.

The proposed shaft furnace is characterized by the use of connecting all heated piers and burning zones of horizontal connecting channels located along the height and along the walls of the chamber. In addition, the shape of the furnace is characterized in that the vertical axes of the rectangular connecting fire channels intersecting their chamber are located between the axes of the two channels below the right, its row, and the plane-parallel walls of the internal fire channels are connected above and below by closing bricks, for example, shapes triangular prism.

Fig 1 shows the proposed device; in fig. 2 - fire channel form, contributing to material movement.

In the proposed device, the chamber is formed by walls lined with refractory bricks. Loading is done through the hole indicated by the arrow. Unloading is carried out at the bottom by means of the unloading Device indicated by arrow 2. An activating agent is introduced into the chamber in a gas or vapor state. The cross-sectional area of the camera at the top and bottom is the same or the last (bottom) may be larger.

In order to increase the heat transfer surface of the chamber, internal fire channels 3 are provided, laid out in rows along the entire chamber. In this case, the axes of the channels are perpendicular to the longitudinal axis of the chamber.

Plum or products of combustion, the transition t along these to the burners, lined with refractory bricks, from one heated pier to another.

from the outside, the firing channels are given a shape (FIG. 2), which contributes to the mixing of the material, thanks to the closing

No. 122238-2 to the upper brick A and the lower brick-5, both of which are connected by plane-parallel walls B. The latter are laid out parallel to each other in a number of channels at distances that provide the optimum thickness of the material layer determining the conditions for obtaining a high-quality product.

Stirring is achieved at a certain speed of movement of the activating material.

The longitudinal rows of the internal heating (fire) channels 3, with the aim of improving the movement, are positioned in such a way that the axis of each channel of the upper row is between the axis of the two channels of the lower row.

The material is heated by both heated walls (from two sides), flat walls of fire channels and (planes of the bricks closing them.

Each heated pier 4 (Fig. 1) is provided with one or more burner 5. In the latter case, the burners are located one above the other, for example burners 5 and 5 in the part of the pier forming channels 7 and 5.

The overlaps bounding the horizontal channels are provided with one or more register holes in the overlaps 9 and the JO-section: the openings are adjustable from zero to the maximum.

The control of the burner section, their change, control of registers, etc., is carried out through the viewing eyes 1J. The walls of the heated walls adjacent to the chambers form openings connected through the chamber by internal heating channels 3.

The heating gas supplied through the gas pipeline J2, after passing through the regenerator J3, enters the pier through the gas channel 14. The air, having passed the check valve 15 and the regenerator 13, enters the pier through passage 16.

The resulting torch and combustion products are divided in such a way that the flame, while maintaining the horizontal direction of movement along the pier wall, through the inner first row of fire channels partially enters the adjacent heated pier walls, where there is no air supply.

At the same time, through the register holes of the first overlapping 10 flames and gases, enter the second horizontal channel 17 of the same pier, and there, like the first channel, through the internal firing channels 3 enter the adjacent pier.

The torch of flame and flue gases, gathering in all channels adjacent to the channel / 7, collect 9 through the register openings in channel 18, from where they enter the regenerator 13 and wash the gas nozzle 20 and air 21 of the regenerator chambers through bulkhead 19.

Having passed through the wall 22, the combustion products through the reversing valves 15, connected to the boar 23, go to the chimney.

Thus, the heating gas and air, rel to the heat of the nozzle of the regenerator, flow, for example, into the horizontal channels 7 and S of only even piers.

However, combustion also occurs in the internal connective channels 5 and in the horizontal channels adjacent to channels 7 and 5 of all the walls.

The gas flows, previously divided into all the piers, are assembled from two adjacent even and one odd piers into the horizontal pier of channel 75 and from there they go to the corresponding chambers of the regenerator, where heat is transferred to the nozzle.

Kantovanie material leads to the fact that the heating gas and air enters the odd piers, then the process is similar to that described. In this case, the combustion products are collected in horizontal axial channels 18.

Subject invention

Claims (3)

1. A shaft bed for activating coal with external heating, characterized by the use of connecting all heated walls and burning zones of horizontal connecting channels located in height and along the walls of the chamber. 2. The furnace configuration according to claim 1, wherein the vertical axes of the rectangular connecting fire channels intersecting the chamber are located between the axes of two channels of the underlying row. 3. The form of the furnace according to claims. 1 and 2, characterized in that the plane-parallel walls of the internal fire channels are connected at the top and bottom by trailing bricks, for example, triangular prism shapes. - 3 - № 122238 12 Fig