RU173858U1 - FIRM UNIT SOLID FUEL FOR DRYING EQUIPMENT - Google Patents

Abstract

The utility model relates to equipment for the combustion of solid fuels and can be used as a heat source for drying equipment. A solid fuel combustion unit for drying equipment is proposed, comprising a housing, a combustion chamber, a grate, separating the combustion chamber into an ash pan and a combustion chamber, an ash pan maintenance hatch, an air duct, and further comprises an emergency reset mechanism for the drying agent in the form of a nozzle with a gate installed at the outlet of the air duct . Mostly the duct is made in the form of a chamber located inside the housing with vertical dividing walls with holes at different heights. The technical result is to increase the reliability of the device. 1 ill.

Description

The utility model relates to equipment for the combustion of solid fuels and can be used as a heat source for drying equipment.

The solid fuel combustion unit in the drying lines is used as a manufacturer of a drying agent (flue gas), diluted with air to the desired temperature and supplied to drying equipment, such as a drying drum, by means of a fan or smoke exhaust. The energy source is the heat released during the combustion of solid fuels: firewood, peat.

The prior art furnace blocks for burning solid fuel, for example, patent No. 2307982, IPC F23B 60/02, F23H 3/02, publ. 10.10.2007, A furnace with a horizontal grate for burning solid fuel, Golovkov S.I., Koperin I.F., Naydenov V.I. The energy use of wood waste, M. - Forest industry, 1987, pp. 46-47.

Known firebox for generating thermal energy by burning solid fuel, utility model patent No. 106936, IPC F23B 30/00, publ. 07/27/2011. We take the known device for the closest analogue. The known device comprises a housing, a combustion chamber, flat and cylindrical walls of the combustion chamber made of refractory bricks, a grate, separating the combustion chamber into an ash pan and a combustion chamber, an ash pan maintenance hatch, an air duct.

A disadvantage of the known device is that the design does not provide for an emergency discharge of the drying agent in cases where the intake of flue gases does not occur. This contributes to overheating of the device and reduces its reliability.

The technical result is aimed at improving the reliability of the device.

The technical result is achieved due to the fact that a solid fuel combustion unit for drying equipment is proposed, comprising a housing, a combustion chamber, a grate, separating the combustion chamber into an ash pan and a combustion chamber, an ash pan maintenance hatch, an air duct, and additionally contains an emergency reset mechanism for the drying agent in the form a nozzle with a gate installed at the outlet of the duct. Mostly the duct is made in the form of a chamber located inside the housing, including vertical dividing walls with holes at different heights.

The described device is illustrated by the following graphic material.

In FIG. 1 shows a section of a solid fuel combustion unit.

The solid fuel combustion unit for drying equipment contains a housing 1, a combustion chamber 2, a grate 3 separating the combustion chamber 2 into an ash pan 4 and a combustion chamber 5, an ash pan maintenance hatch 6 with a valve, an air duct 7, a door 8 for loading solid fuel into the combustion chamber 5 The housing 1 is a metal base coated with heat-insulating material, for example mineral wool, and is coated with galvanized steel (not shown in Fig.). Inside the housing 1 are located interconnected combustion chamber 2 and the duct 7 made of refractory material, such as fireclay brick or refractory stove. The air duct 7 is made in the form of a chamber located inside the housing 1, including vertical dividing walls 9, 10 with holes 11, 12 at different heights. The separation walls 9 and 10 form a labyrinth gas outlet channel. The air outlet 7 at the outlet contains the emergency release mechanism of the drying agent in the form of a pipe 13 with a gate 14. The air duct 7 contains service hatches 15 in the lower part, through which the accumulated ash and slag are removed. The graphic material shows two vertical dividing walls, but their number may be different.

The proposed device operates as follows.

The solid fuel is manually loaded through the door 8 into the combustion chamber 5, placed on the grate 3 and fired. Fresh air enters through the valve in the hatch 6 to the ash pan 4, and then through the grate 3 to the fire, thereby ensuring efficient combustion of solid fuel. Using a valve in the hatch 6, the volume and temperature of the flue gases generated during the combustion of solid fuel are controlled by changing the amount of air being mixed. The flue gas from the combustion chamber 2 enters the duct 7, where, bypassing the separation walls 9 and 10 through the openings 11 and 12, it constantly changes direction, which helps to ensure that the sparks contained in it are quenched, and soot and slag are deposited. Thus, at the exit from the proposed solid-fuel combustion unit, a pure drying agent is obtained (without sparks, ash and soot). In order to carry out an emergency discharge of the drying agent, it is necessary to extend the slide gate 14 and release flue gas into the street.

It is obvious that the proposed solid fuel combustion unit for drying equipment can improve the reliability of the device.

Claims (2)

1. Solid fuel combustion unit for drying equipment, comprising a housing, a combustion chamber, a grate, separating the combustion chamber into an ash pan and a combustion chamber, an ash pan maintenance hatch, an air duct, characterized in that it contains an emergency reset mechanism for the drying agent in the form of a nozzle with a gate installed at the outlet of the duct. 2. The furnace block according to claim 1, characterized in that the duct is made in the form of a chamber located inside the housing, including vertical dividing walls with holes at different heights.

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