SU3561A1 - Remote firebox for raw measles - Google Patents

Description

The raw fuel is fed into the firebox to the place where the combustion products of the already dried fuel pass. Due to their heat, drying takes place and partial distillation of this fuel occurs. As it dries and distillates, the fuel moves towards the combustion products and begins to tan itself and produce the same combustion products. At the end of the furnace, opposite to the place of loading, dried and prepared fuel burns, which, therefore, will develop high temperature and provide ignition, distillation and drying — masses of raw fuel moving to this place.

FIG. 1 of the drawing shows a vertical longitudinal section of the proposed furnace, FIG. 2nd vertical transverse section and in FIG. 3rd horizontal section.

FIG. 4-P depict modifications of the proposed furnace, namely: FIG. 4 is a section through EF of FIG. 6; in fig. 5-section according to AB of FIG. 6; in fig. b-slit on cd fig. five; in fig. 7-section on / C / fig. five; in fig. 8-section on the EG of FIG. ten; in fig. 9 is a section through AB of FIG. ten; in fig. The 10 CD section of FIG. 9; in fig. And the KL slit of FIG. 9; in fig. 12, 13 and 14 ovens with a refractory nozzle; in fig. 15, 16 and 17-oven with a mechanical grill and shaft.

Fuel enters (Fig. 1, 2 and 3) through the hatch 1 in the vault 2, slides along the vertical wall 3 in the rear part of the combustion chamber 11 along a steeply inclined grate 4 on an inclined dead area 5 and on horizontal or slightly inclined grate b. According to the grate 6, it, as required, is raked by the poker through;

doors 7. The plum from the burning washes away the sliding fuel and goes through the windows 8 to the chamber of burning out and precipitating the ash 9, from where it enters the boiler. The upper part 4 of the inclined grate 4, 5, 6 is designed for suctioning a part of the vapors and distillation products formed in the furnace through the channel 12.

The space under the grate 4 is connected to the boar to suck the moisture released from the fuel. The air heated in the air heater is injected into the space under the grill 6 by fan 10, and the combustion products from the combustion chamber 9 can be sucked into it to enhance the heating. The movement of fuel towards the flame, removal of part of the moisture from the fuel by suction, work with heated air and balanced temperament aims to provide ignition and good burning as hard as a combustible fuel, like raw bark.

In a modification of the firebox for raw measles, in the case of using raw peat as fuel, the inclined pads 5 and the simple main grating b (Fig. 1-3) are replaced by the rollers 5 and the chain grating 6, according to FIG. 4-7. Then (Fig. 4, 5, 6 and 7) the fuel enters through the hole 1 in the roof 2, slides along the steeply inclined wall 3 along the steeply inclined grates 4 on the rods 5 and the mechanical grate 6. In the first embodiment (Fig. 4-7 ) this lattice is shown in the form of a chain; in the second (Fig. 8-16) it is in the form of a lattice with grate pushers 6. Other forms of mechanical grates may be used. From the grates of these burns are fed into the shaft 7 on the rotary grate 8, where they finally burn out. The formed slag is dumped when the plate 8 is rotated into the ashpit space 9. The combustion is monitored and corrected through the doors 10. Air is supplied

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fan to different places of the grates in the chambers 11. Additional air for afterburning of the resulting gases is supplied under pressure of the fan through the channel in the bricking 14 through the openings 15 to the stream of gases flowing through the windows 17. Thus, part of the external heat loss returns. The flame from the combustion on the grate and the resulting gases wash the sliding fuel and go through the windows 17 into the combustion chamber 18, from where they come to the heating surface. The space under the grate 4 is connected to the hog for suctioning a part of the moisture from the fuel. The air supplied by the fan is preheated in the air preheater and, in addition to Togo, hot gas can be sucked into it from chamber 18.

In the furnace according to FIG. 12-14, a hot flame freely washes the walls and ceiling of the first combustion chamber 1 and maintains them in a hot state, which creates a strong effect of radiant heat from the brickwork on the surface of the fuel, supporting the combustion process. The products of combustion and distillation occurring in the first chamber, passing over the fuel to meet its movement, are transferred to the second combustion chamber 2, and an additional dose of air is added to them, which serves to finally burn them up in this second chamber. To enhance the combustion process, air is supplied to the firebox under pressure and in a heated state. In some cases, in order to ensure the afterburning of gases and to create stability of their combustion in the second combustion chamber, any system is made of refractory cap 3. Grate 4, depending on the type of fuel, any system can be used.

In the case of the use of a mechanical lattice (Figs. 15, 16 and 17), it is necessary to keep a thick layer of fuel at its end, to make behind it a shaft 5, in which unburned lumps of fuel that had come off the mechanical lattice would burn out. The bottom of shaft 5, depending on the type of fuel, can be made or in the form of tilting | lattices, or in the form of a slag mill. In view of the large external surface of the furnace, it is covered by a cavity b above the brickwork, along which some air flows, | going to burning; in this way | heat loss during external cooling is reduced.

Depending on the type of fuel and the nature of the grid, the fuel can be loaded or simply by sliding it onto the grid | through a hole in the ceiling of the firebox, I or by gradual dumping it through this hole with the help of the feeding mechanism of any system not shown in the drawing. In the latter case, there is a better preparation of the fuel and its more intense burnout. In addition, in this case, the hot gases go over the entire width of the cross-section of the furnace, i, while in the first they pass into; second camera through windows 7 (fig. 13) | past a pillar of sliding fuel.

The subject of the patent.

1. A remote firebox for raw measles, which is characterized by using, for the purpose of better heating of the inclined lattice 4, 5, 6 entering the fire chamber of measles with a slope to the front of the fire chamber and outlets from the firebox 1 rear end | the firebox in the wall 3, in which the firebox i, the upper part 4 of the inclined grate 4, 5, 6 is designed to suck off part of the vapor and sublimation products formed in the furnace through channel 12.

2. Use, under the furnace described in paragraph 1, to blow under the grate b with the help of a fan 10 with artificially heated air with suction, in order to enhance the marked heating, part of the combustion products from the combustion chamber 9.

3. Change as described in p. 1 and 2 patents for raw measles firebox in case of using peat as fuel, characterized in that specified in paragraphs. 1 and 2, the sloping platform 5 and the simple basic grille b are replaced by the arms 5 and the chain grill b (Fig. 4-7).

4. Modification described in p. 1 and 2 patents for raw measles firebox in case of using peat as fuel, characterized in that specified in paragraphs. 1 and 2 are a sloping platform and a simple main grille b replaced by a number of simple grilles placed by steps with pushers b between them (Fig. 8-11).

5. When characterized in pp 1-4 of the furnace, use in the afterburner 2 (Fig. 12) of the refractory nozzle 3, in order to ensure after-burning of the gases that have entered the chamber.

6. When characterized in pp 1-5, the application in the case of using the mechanical grating of the shaft 5 (Fig. 15-17), in which the mine, in order to burn out residues leaving the said grating, either a tilting grate or a slag crusher is placed.