RU40439U1 - INDUSTRIAL WASTE BURNING DEVICE - Google Patents

Abstract

The utility model relates to devices for burning industrial waste that require fire neutralization and can be used in various areas of the national economy, especially in sewage treatment plants of urban households,

The device (furnace) includes a cooled combustion chamber with a forced air pipe and a liquid vibration combustion chamber.

The furnace goes into vibration mode of combustion automatically, and loading it with new portions of waste is carried out without disrupting the combustion mode, which increases the productivity of the furnace by 2-3 times.

This utility model helps to increase the efficiency of burning industrial waste, increase the efficiency and environmental friendliness of the whole process.

Description

The invention relates to devices for burning industrial wastes that require fire neutralization, and can be used in various areas of the national economy, especially in sewage treatment plants of urban households. pipe - neck for the output of combustion products, the bottom with the tray and air nozzles [1].

A significant drawback of this device is the imperfection of the bottom with the tray, which does not allow timely removal of ash from the combustion zone to force the furnace,

The disadvantages of the device should also include the connection of both nozzles to the annular cavity. When burning high-calorie solid fuels (waste) with a high content of volatile substances, excess air in the combustion zone contributes to the formation of nitrogen oxides, thereby degrading the environmental performance of the furnace as a whole.

The closest adopted for the prototype is a device containing a vertical combustion chamber with a fuel supply pipe, a tangential air inlet nozzle and a conical neck for introducing gases into the chamber [2].

The disadvantage of this device is the closed bottom, which reduces the efficiency of the device on high ash fuel associated with an increase in mechanical entrainment with flue gases.

Another disadvantage of the device is also the shape of the combustion chamber, made in the form of a truncated cone with a smaller upper base. When forcing a small volume of the furnace space does not allow the active mixing of combustible substances with air, which

adversely affects combustion. Not the best way contributes to the completeness of combustion and the supply of secondary air, organized locally and without heating.

The proposed furnace for burning industrial waste, containing a combustion chamber with a low pressure air supply pipe from a fan, is equipped with a liquid vibration combustion chamber for organizing vibrational combustion and enters into vibrational combustion mode automatically.

The furnace is loaded with new portions of waste without disrupting vibrational combustion in the furnace.

Figure 1 shows the proposed furnace for burning industrial waste, which includes a combustion chamber (sense) 7 with a low pressure air supply pipe 6 from fan 4.

The design of the feeder allows additional loading of the furnace with new portions of waste by sequentially opening the outer cover 10 and inner 8 by pressing the lever 9, without disrupting vibrational combustion in the furnace.

The removal of slag and unburned residues from the surface of the grid-irons 2 is carried out through two doors 3, without stopping the combustion process.

For the implementation of the vibrational combustion mode in the furnace, a pulsating flow of combustion products from the vortex chamber of pulsating combustion 16 having a cylindrical body with two rows of chordal openings 17 and 18 for supplying air is introduced into the torch root zone through the pipe 5. Liquid hydrocarbon fuel is poured into the tank 13 through the filler neck 12 and fed into the chamber by gravity through the control valve 14. Combustion products fly out of the combustion chamber through a sectional type resonator pipe 11.

The furnace is as follows: the tank 13 is pre-filled with liquid fuel (diesel fuel, fuel oil, kerosene, oil), the flow of which is regulated by valve 14. With open covers 10 and 8

through the feeder, the furnace is loaded with solid industrial waste, which is ignited by a flare method. Then, liquid fuel is ignited by a torch in a vortex furnace, the fan 4 is turned on, and the furnace automatically enters into a vibrational mode of operation, this is facilitated by blowing the vortex chamber with air through the tube 15. In this case, the outer shell of the furnace remains practically cold. Additional furnace loading goes through the feeder, without stopping the main combustion.

The proposed device (furnace) allows you to force the furnace volume of the furnace and take advantage of vibrational combustion when burning industrial waste, i.e. to concentrate the flame and lower the temperature of combustion without reducing the completeness of combustion.

Periodic pressure pulsations in the grate zone 2 accelerate the removal of ash residues from the active combustion zone, thereby providing favorable conditions for the completion of redox reactions. The warm air gently supplied through the grate, which has increased its temperature by cooling the cylindrical part of the furnace, heats up even more, passing through high-temperature slag residues, making them completely burned out and additionally heating up. All this taken together contributes to a significant improvement in the environmental performance of the furnace as a whole.

So, for the analogue of the prototype we take [2] a device containing a vertical combustion chamber with a fuel supply pipe, a tangential air inlet nozzle and a cone and a throat inserted into the chamber for the exit of gases. The device we offer is characterized in that:

- the device is equipped with a pipe 6 for supplying low pressure air (from the fan 4) (figure 1);

- the device is equipped with a vibratory combustion chamber 16 (figure 1);

- the device is able to enter the vibrational combustion mode automatically (i.e. without any adjustment and adjustment);

- the device allows you to load the combustion chamber (furnace) 7 with new portions of waste, without disrupting the vibrational combustion mode.

The use of this device will increase the efficiency of disposal of various industrial wastes.

Sources of information

1. A.S. 113211 A, F 23 07/04, 30.12. 84

2. Testimonial. for utility model No. 11636 of 08/10/2000 (Bull. No. 22 Cl. F 23 V 1/36).

Claims (3)

1. A device containing a vertical combustion chamber with a fuel supply pipe, a tangential air inlet nozzle and a tapered neck for exhausting gases introduced into the chamber, characterized in that the device is provided with a low pressure air supply pipe. 2. The device according to claim 1, characterized in that it is equipped with a vibration combustion chamber. 3. The device according to claims 1 and 2, characterized in that it independently enters into vibration combustion mode by experimental selection of the dimensions of the combustion chamber and pipe.