KR840001437Y1 - Combustion apparatus for boiler of waste fuel - Google Patents

Abstract

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Description

Incinerator Boiler Combustion System Using Combustible Industrial Waste as Alternative Fuel

1 is a partially cutaway perspective view of the present invention.

2 is a longitudinal sectional view of the present invention.

3 is a plan view of the present invention.

According to the present invention, incinerators suitable for complete combustion are installed according to the physical characteristics of the inflammable incineration materials incinerated in front of the combustion chambers of existing and new boilers, thus fulfilling the function of industrial waste as an alternative fuel. It is about an incineration boiler combustion apparatus.

In general, when the waste chamber is supplied with waste materials, the waste that is put into the combustion chamber must be supplied after being burned up or after seeing a somewhat burned state. Therefore, the fuel supply process is cumbersome and the waste that is supplied to the boiler falls on the waste that is burned in the combustion chamber. Since it is impossible to adjust the amount of air supply and the amount of waste, it is mixed with the firstly supplied waste material and is combusted.Therefore, a lot of smoke is generated, and since the supplied waste is burned on the grate, the flame is burned at the same time as it is fired at the top or side. When the waste is kept in a strong combustion state, a large amount of heat can be obtained. However, when the waste is resupplied, heat is rapidly accumulated from the moment it is replenished and accumulated on the combusted fuel. Imperfection there was.

Incineration boilers usually install air boxes on the main wall, but they are melted at high temperatures and lose their function.In a closed combustion device, a device that burns tires by heating them and pressurizes them to open the upper inlet door every time fuel is injected. For this purpose, there is a closed end to stop the combustion, and the sawdust stove as a natural ventilation down-combustion has a defect that cannot be enlarged for industrial use.

The present invention is the most suitable for the combustion of waste by improving the conventional combustion supply process and the combustion chamber, by utilizing the characteristics of the combustion requirements to induce flames under the grate, to remove the obstacles in the incineration of industrial wastes, and to improve and develop. The combustion chamber was built with refractory on the front of the boiler, and the thermal insulation was used to improve the thermal efficiency, and the down-combustion formula was adopted in which the waste injected into the inlet was sequentially burned from the bottom, so that the fuel can be easily supplied and the combustion heat can be supplied to the boiler.

In addition, there is no fixed frequency after the boiler is newly installed or modified, and the purpose is to provide a semi-permanent incinerator boiler combustion apparatus.

In FIG. 2, before the construction of the combustion chamber 3, the low temperature portion of the water in the boiler 1 is taken out, and the two downcoming pipes 4 are withdrawn and inductively connected to the ″ flange type ″ first water pipe hedda 5 and the inlet 2 In the crater 6 formed below, a water pipe group grate 7 is formed (possibly doubled) to guide the intermediate connecting hedge 8 and the connected constant water pipe group 9 is circulated along the combustion chamber slope (a). (10) was connected, and the connection pipe 11 was connected to the boiler upper portion 1 'to form a water pipe wall.

At this time, the heat generated at the time of incineration is absorbed by the water pipe group 9 to promote the steam generation efficiency of the boiler 1 and to prevent the combustion chamber heating phenomenon.

Thus, the heated water in the water pipe group 9 is gradually convection-promoted so that the circulation is always circulated with the water in the boiler 1 through the circulation pipe hedda 10 and the circulation pipe 11.

It is important to note that these water distribution circulation systems are primarily concerned with natural convection phenomena due to water temperature differences.

Therefore, the position selection of the combustion chamber (3) and the selection of high and low (Label Cheaking) of the position are the main issues, so in the present invention, the water pipe group grate (7) and the water pipe group (9) forming the inlet (2) and the crater (6). The combustion chamber (3) constructed of refractory material is formed to be inclined toward the boiler side so that the waste put into the inlet is burned down from the crater and the combustion heat is burned through the inclined combustion chamber via the combustion heat passage (1a) of the boiler (1b). To get out.

In addition, an ash box 12 was installed in the lower part of the combustion chamber 3 so that ash accumulated as a natural fall after combustion.

Of course, the combustion function is calculated to balance the inducted ARAFT (using the 휀) and the FOR CED ARAFT method, and inside the combustion chamber 3, the front, left and right sides and water pipes 7 ( The high speed air injection pipe 13 and the air blowing nozzle 13 'for generating the swirling air flow, which are accurately calculated between the gaps, are blocked with insulation to prevent heating, and the blow nozzle is made of refractory air instead of a box. Properly supplied, the combustion gas exiting the outlet was discharged with odor and soot removed.

Referring to the effect of the present invention made as follows.

As shown in FIG. 2 in a state in which water supplied from the boiler 1 is filled in the first hedda 5, the water pipe group grate 7, the middle hedda 8, and the water pipe group 9 through the precipitation pipe 4, as shown in FIG. 2. When the waste (b) is introduced into the inlet (2), the waste is loaded on the crater (6) formed below the inlet and ignited in part of the loaded waste, and the waste loaded on the upper surface of the crater starts to burn from below. Since it is burned at, there is little generation of smoke, and since the supplied waste is pressed down by its own weight and burned downward continuously from below, it is easy to supply fuel and at the same time, it is possible to obtain the effect of supplying combustion heat with a constant calorie lift width to the boiler. will be.

In addition, as the waste begins to burn in the crater, ash falls below the ash tray 12 and the air is supplied from the air blowing nozzle 13 'of the injection pipe attached to the ash tray to assist combustion, and the heat of combustion burning the waste from below It is guided along the inclined surface (a) of the combustion chamber (3) and enters through the combustion heat passage (1a) of the boiler. In the past, when fuel is injected into the fuel injection cylinder, it is generally burned on the grate and the flame is induced to the top or side. In the present invention, when a large amount of fuel is accumulated at the fuel inlet, the fuel is burned under the water pipe grate, and the flame is introduced into the boiler by the induction fan.

In addition, the combustion method adopts a special ventilation method, manned ventilation and forced ventilation, so that the combustion is controlled by the strict ventilation air flow, so that the high-speed air is discharged from the combustion air ejection nozzle 13 'installed specially on the inner wall of the combustion chamber 3. By generating and ejecting swirl flow to make the diffusion effect of combustion gas and oxygen in the air uniform, the combustion efficiency is increased, so that the smoke and odor NOx are high-temperature treated, and they are installed outside the boiler (not shown). The combustion efficiency was increased by generating a manned draft to guide the inside and outside of the boiler. At this time, air supply and manned ventilation should be adjusted to balance.

In addition, by building a water cooling wall in the high temperature portion of the combustion chamber (3) to protect the internal wall burnout caused by the high heat inside the combustion chamber, and increased the heat transfer surface of the boiler to increase the evaporation efficiency.

In addition, to avoid the conventional grate (Rostol) burns, the planar water pipe lattice furnace type is adopted to be suitable for the combustion characteristics (melt-dissolution burning) of plastics and vinyls. Inflammable materials were flammable and burned by radiant heat, and the material prevented grate rupture by using special drawing steel pipe (STB 35) for boiler which is sufficient for high temperature and high temperature.

By installing the combustion device formed in this way on existing boilers and new boilers, industrial wastes that have been disposed of can be used as alternative fuels, resulting in enormous economic benefits as energy resources are achieved, and the fuel is burned down to ensure uniform combustion heat into the boiler. It is a practical design that can be supplied.

For example, if the burning efficiency is incinerated every hour (30 kg of industrial (rubber) wastes are burned flawlessly), then the combustion efficiency is 70%.

Material: (7,000kcal / kg × 300kg / Hr) × 0.7 = 1,470,000 (kcal / Hr)

Budget: 0.9D / M × 40,000W / DM = 36,000KRW / D / M (Hr)

36,000 × 10H / D = 360,000 / day × 30 days = 10,800,000 monthly × 12 =

129,600,000W / year

Claims (1)

The crater 6 formed of the water pipe group grate 7 and the fuel inlet 2 are integrally formed, but are formed in the same manner as the inclined surface a of the combustion chamber 3 and the flames which are burned down by the induction fan are below the grate. An incineration boiler combustion apparatus using inflammable industrial waste as an alternative fuel, characterized by being guided along a slope.