CN2424417Y - Verticle clean steam and water boiler by burning coal - Google Patents

Abstract

A vertical coal-fired clean steam-water dual-purpose furnace, which is composed of a furnace body, a furnace, a fire grate and a chimney. The furnace body includes an outer furnace and an inner furnace. There is an air supply pipe system unit under the furnace body, a combustion chamber communicated with the furnace is arranged above the furnace body, and a water jacket for preventing dust and absorbing heat is fixedly arranged in the middle area of the combustion chamber. In its application, the gasification and combustion of coal can be integrated, the combustible carbon can be fully burned, the emission of dust can be reduced, and the problem of environmental protection can be solved.

Description

Vertical coal-fired clean soda and water dual-purpose furnace

The utility model relates to a vertical coal-fired clean steam-water dual-purpose furnace.

At present, the coal-fired soda and water dual-purpose furnaces used in my country have high smoke and dust emission concentrations and serious environmental pollution. They need to be equipped with induced draft fans and dust removal equipment. This takes up a lot of space and equipment, and the effect of smoke exhaust and dust removal is not ideal, which is not suitable for the current situation. Environmental protection requirements.

The purpose of the utility model is to provide an energy-saving, smoke-eliminating and dust-removing vertical coal-fired clean steam-water dual-purpose furnace.

In order to achieve the above purpose, the utility model adopts the following design scheme: a vertical coal-fired clean steam-water dual-purpose furnace, which is composed of a furnace body, a furnace hearth, a fire grate and a chimney. The furnace body includes an outer furnace, an inner furnace The inner and outer furnaces are connected through the upper and lower circulating water pipes, and there is an air supply pipeline system unit under the furnace body, including:

The primary air supply unit body is composed of a primary air delivery pipe with an air inlet pipe opening.

The secondary air supply unit body includes an air inlet pipe and several secondary air delivery pipes connected with it, and the several secondary air delivery pipes communicate with the ring-shaped triangular air chamber located above the grate and surrounded by the inner wall of the outer furnace , there are several air holes on the triangular air bin;

The tertiary air supply unit body is directly connected to the tertiary air ring pipe from the air inlet pipe, and then leads to the furnace body through the connected tertiary air pipe installed in the outer furnace; the tertiary air pipe is connected to the furnace body with nozzles;

A combustion chamber communicated with the furnace is arranged above the furnace body, and a water jacket for preventing dust and absorbing heat is fixedly installed in the middle area of the combustion chamber.

Below in conjunction with accompanying drawing, the utility model is further described.

Fig. 1 is the structural representation of the utility model

Figure 2 is a B-B sectional view of Figure 1

Figure 3 is a C-C sectional view of Figure 1

Fig. 4 is A-A sectional view of Fig. 1

As shown in Fig. 1 and Fig. 2, the utility model is made of body of heater 1, hearth 2, fire grate 3, chimney 4, air supply duct system unit and combustion chamber 5.

The furnace body 1 includes an outer furnace chamber 101 and an inner furnace chamber 102, and the inner and outer furnace chambers are connected through upper and lower circulating water pipes 103 and 104.

The settings of furnace 2, fire grate 3, and smokestack 4 are all prior art, and are no longer repeated here.

The utility model is characterized in that an air supply duct system unit is provided below the furnace body, as shown in Fig. 1, Fig. 3 and Fig. 4, it includes:

The primary air supply unit body is composed of a primary air delivery pipe 602 with an air inlet pipe opening 601 . For uniform air supply, a ring 603 can also be connected at the port of the air delivery pipe.

The secondary air supply unit body includes an air inlet pipe 701 and several secondary air delivery pipes 702 connected with it. The air bin 703 is connected, and the air bin is provided with intensive air holes 7031, and the air holes are directed toward the upper middle of the furnace.

The three-time air supply unit body is directly connected to the three-time air supply ring pipe 802 by the air inlet pipe mouth 801, and then leads to the furnace body through the three-time air pipe 803 of Unicom; the three-time air pipe 803 and the furnace body are connected. The nozzle can be fixed in a set direction (at a certain oblique angle), so that the jetted wind will rotate naturally.

A water jacket 9 that blocks dust and absorbs heat is fixedly arranged in the central area of the combustion chamber 5 above the body of heater. The combustion chamber 5 communicates with the furnace through a smoke pipe 11 .

The air inlet pipes of the first, second and third air supply units are provided with an air regulating device 10, which can control the amount of air entering.

The working principle of the utility model is as follows: in the air supply duct system unit, the primary air supply unit sends air evenly to the bottom of the grate through the air regulating device, so as to promote the combustion of coal on the grate, and several pipes of the secondary air supply unit The air is supplied to the triangular air silo, and then blows out to the center above the furnace through the dense air holes on the triangular air silo to form a dense air curtain net. The unburned coal in the coal and the combustible gas produced by incomplete combustion Mix and burn under the secondary air curtain. The tertiary air supply unit rotates and distributes air at a certain height angle through the nozzle near the suspender, forming an oxygen-enriched air film and fully mixing the unburned combustible gas, forming a unique gas combustion at the top of the combustion chamber, making the combustion chamber The combustible charcoal is fully burned to generate a large amount of heat, which is quickly transferred to the water in the hanging tank and the surrounding furnace tank, thereby improving the thermal efficiency of the furnace. A dust-blocking and heating water jacket device is installed in the combustion chamber on the upper part of the furnace body. The rising flue gas and fine dust are blocked by it here, so that the flue gas can generate vortex again, and the waste heat can be transferred to the water again.

The utility model has the advantages that the furnace integrates the coal gasification and combustion, and the combustible charcoal is fully burned. Due to the strong blocking effect of the air curtain, the unburned combustible gas forms a unique gas combustion in the combustion chamber, so that the unburned charcoal and dust particles are in a relatively stable state in the furnace, reducing dust emissions. It not only solves the problem of environmental protection, but also reduces the cost of fuel.

Claims (4)

1, the clean steam-water dual-purpose stove of a kind of vertical fire coal is made of body of heater, burner hearth, fire grate and smokestack, and described body of heater comprises outer furnace, inner furnace, and interior outer furnace communicates by upper and lower circulating water pipe, it is characterized in that:

The air supply duct system unit is arranged below body of heater, comprising:

A blowing unit body is made of a wind conveying pipe that has air intake pipe orifice.

The secondary blast cell cube, comprise an air intake pipe orifice and with some secondary wind conveying pipes of its UNICOM, these some secondary wind conveying pipes again be positioned at the ring-type triangle wind storehouse UNICOM of fire grate top along the outer furnace inner wall surrounding, on triangle wind storehouse, have some wind hole;

Three blowing unit bodies by the direct UNICOM of air intake pipe orifice tertiary air loop pipe, lead to hearth body through the tertiary-air pipe that is arranged in the outer furnace of UNICOM again; Tertiary-air pipe and hearth body connection position are provided with nozzle;

Establish a combustion chamber that communicates with burner hearth above body of heater, zone line fixedly installs the water jacket of dust-break heat absorption in the combustion chamber.

2, the clean steam-water dual-purpose stove of vertical fire coal according to claim 1 is characterized in that: the wind hole that has on the described triangle wind storehouse is intensive and towards top, burner hearth center.

3, the clean steam-water dual-purpose stove of vertical fire coal according to claim 1 and 2 is characterized in that: be provided with louver on the air intake pipe orifice of one, two, three blowing unit body.

4, the clean steam-water dual-purpose stove of vertical fire coal according to claim 1, it is characterized in that: the wind conveying pipe air-out port of a described blowing unit body connects a ring.

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