DEVICE FOR REBURNING FURNACE COMBUSTION PRODUCTS

Abstract

The invention relates to auxiliary equipment for reburning combustion products. The technical result is that of accelerating the ignition of fuel and improving fuel combustion in a furnace. A device for reburning combustion products in a furnace is arranged above a combustion unit inside the body of the furnace and is in the form of a hollow body with a bottom inlet hole and a top outlet hole, on the side wall of which hollow body there is formed a horizontal row of evenly distributed air holes. Rectangular protrusions are formed to the right- and left-hand sides of each hole on the inside of the body of the device, said protrusions serving to feed supplementary air, which comes in via the holes, from the outer holes of the furnace into the body of the device, providing for accelerated incineration of residual combustion products without formation of a vortex in the air flows.

Claims

1. Device for reburning furnace combustion products is arranged above a combustion unit in the form of a hollow body with a bottom inlet hole and a top outlet hole, on the side wall of which hollow body there is formed a horizontal row of evenly distributed air holes, wherein, protrusions are formed to the right- and left-hand sides of each hole on the inside of the body of the device said protrusions serving to feed supplementary air, which comes in via the holes, from the outer holes of the furnace into the body of the device, providing for accelerated incineration of residual combustion products without formation of a vortex in the airflow.

2. The device according to claim 1, wherein the rectangular protrusions are parallel to each other.

3. The device according to claim 1, wherein the body of the device is designed in the form of a truncated cone and/or a truncated pyramid and/or a truncated parallelepiped and/or a cylinder.

4. The device according to claim 1, wherein the thickness of the rectangular protrusions is less than the thickness of the body of the device.

Description

DESCRIPTION OF THE DRAWINGS

[0016] FIG. 1—reburning process of combustion products in a furnace;

[0017] FIG. 2—the embodiment of the device and the hearth on which the device should be assembled;

[0018] FIG. 3—drawing of the proposed device (cone-shaped);

[0019] FIG. 4—drawing of the proposed device (pyramidal).

[0020] The shown numbers in the figures refering to the following references.

[0021] 1—ceramic hearth;

[0022] 2—cast iron fire grate,

[0023] 3—furnace ashtray;

[0024] 4—outer air holes;

[0025] 5—air holes of the proposed device;

[0026] 6—furnace cast-iron covers;

[0027] 7—air chamber;

[0028] 8—flue;

[0029] 9—flue groove;

[0030] 10—soot withdrawal opening;

[0031] 11—fuel loading door;

[0032] 12—device for returning combustion products;

[0033] 13—furnace body;

[0034] 14—housing of the device reburning furnace combustion products;

[0035] 15—auxiliary protrusion (shutter) of the device for reburning furnace combustion products.

SUBSTANTIVENESS OF THE PROPOSED INVENTION

[0036] The combustion product reburning device is composed of a combustion housing 14 and air holes 5 (see FIG. 3), the form of a device varies on the design of the combustion furnace.

[0037] The auxiliary protrusions (shutter) of the device for reburning furnace combustion products 15 are formed on the inside of the body of the device 14 to the right- and left-hand sides of each air hole 5, said protrusions vertically positioned on the wall of the combustion device 14. The auxiliary protrusions (shutters) of each hole arranged parallelly to each other, but not necessarily be designed strictly vertically. The height of the protrusion (1-2 cm), generally, does not exceed the diameter of the air hole.

[0038] Description of the embodiment use of the device in a domestic heating furnace (FIG. 2):

[0039] When fuel combustion occurs in furnace 13, smoke goes up to the reburning device 12 and burns in there, as a result of supplementary air distributed from outside though air hole.

[0040] Protrusions of the device are formed on the inside of the body, and the thickness of the protrusions is less than in comparison to the thickness of the body of the device itself. The device for reburning combustion products 12 is assembled above the ceramic hearth (furnace combustion unit) 1 inside the furnace body.

[0041] Air holes 5 is formed a horizontal row evenly distributed on the side wall of the device 15. Air chamber 7 is located at the same level as air holes 5 and freely supplies air to air holes 5. The thickness of protrusions are relatively thin so that during fuel combustion the temperature of the chamber momentarily rises up to the required ignition temperature, and the ignition process is not only rapid, but also smokeless, and complete combustion of the fuel takes place, which corresponds to the ecological requirements.

[0042] The housing of combustion device 14 has protrusions (auxiliary combustion device) with the help of which distributed supplementary air entering from the outer air hole of the furnace to combustion housing 14 (FIG. 1), as a result provides accelerated combustion of the residual combustion products (smoke).

[0043] The housing of the combustion products reburning device may be designed with a conical form or a spherical column form, a square form or square conical form, a rectangular form, and other forms depending on the form of the furnace.

[0044] The presented device for reburning of combustion products is produced industrially from cast iron or iron (on special equipment for metalworking), the quality and exploitation term depends on the quality of the metals.

[0045] Implementation of this solution has a wide application, its design is simple, and its production is not complicated.

[0046] The thickness of device is relatively thin so when fuel combustion takes place the temperature in the chamber instantly rises up to the required ignition temperature, and the combustion process is not only rapid, but also smokeless, and complete combustion of the fuel takes place, which corresponds to the ecological requirements.