CN2578691Y

CN2578691Y - Gangue energy saving furnace with electronic ignition and hot air and steam aided combustion

Info

Publication number: CN2578691Y
Application number: CN 02244784
Authority: CN
Inventors: 赵畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-11-13
Filing date: 2002-11-13
Publication date: 2003-10-08
Anticipated expiration: 2012-11-13

Abstract

The utility model relates to a gangue energy saving furnace with electronic ignition and hot air and steam aided combustion, which belongs to a solid fuel domestic stove. Except provided with basic assemblies, the energy-saving furnace is additionally provided with a hot air supply system, a steam supply system, an electronic ignition assembly and a furnace floor sealing assembly, wherein, the hot air supply system comprises a blower (1), a blast pipe (25) and a thermal cycling air intake pipeline (12); the steam supply system comprises a steam jacket (8), a water inlet pipe with a valve (5) and a steam guide pipe (3) with a valve (4); the electronic ignition assembly comprises an oil chamber (20), a refill opening with a cap (19), an air inflation pipe with a non-return valve (21), a gas guide pipe (23) with a valve (22), and an electronic ignition button (24); the furnace floor sealing assembly comprises circular steel plates (14) and (15), a rotating shaft (16) and a connecting rod (18). Coal gangue or inferior coal can be used as main fuel by the gangue energy saving furnace provided by the utility model. The utility model has the advantages of easy regulation of fire power, quick ignition, and convenient fire seal and ash leakage.

Description

Electronic ignition and hot air steam combustion-supporting gangue energy-saving furnace

Technical Field

The utility model belongs to a household stove using solid fuel, and relates to an electric spark igniter and a device for delivering hot air and steam to a stove fire.

Background

The domestic air return stove is composed of hearth, stove body, air return jacket, smoke outlet, grate, stove base, stove cover, air door and ash hopper, and has hot water jacket and small blower. Most of these furnaces have the following disadvantages: the firewood is ignited by manual naked fire, and then the coal is added to burn, so that the ignition is slow, and much smoke dust is generated; the natural air intake of the stove supports combustion, the wind pressure is small, the wind speed is low, cause the oxidation of the coal insufficiently, the firepower is not fierce, the furnace temperature is not high, it is difficult to ignite the coal gangue; only raw coal, briquette or lump coal can be used as fuel, so the cost is high; the strip grate at the bottom of the furnace is not sealed, and the fire intensity is difficult to control. Although people improve the structure of the stove many times, the obtained effect is still not ideal. Hitherto, no domestic stove using coal gangue as fuel and delivering hot air and steam to fire has been reported.

Disclosure of Invention

The utility model aims to provide a domestic stove which adopts electronic ignition, delivers hot air and steam to the stove fire for combustion supporting and uses coal gangue as fuel.

In order to achieve the purpose, the following improvements are designed into the traditional household air return furnace through research and test: firstly, a hot air supply system is arranged and consists of a blower, a blast pipe and a heat circulation air inlet pipelinearranged at the lower part of a hearth; and secondly, a steam supply system is arranged and consists of a steam jacket, a water inlet pipe with a valve and a steam air duct with a valve, which are arranged above the hearth, and the generated steam and the air sent by the blower enter the hearth after being pressurized and heated through a thermal cycle air inlet pipeline, so that the air and the steam respectively perform chemical reactions with the coal in the coal gangue:

the generated hydrogen and carbon monoxide are combustible gases, and the heat generated by combustion and oxidation of the combustible gases can heat the coal gangue to promote the combustion of the coal gangue; thirdly, an electronic ignition component is arranged, and by utilizing the electronic ignition component, the ignition can be realized by electric sparkThe pressed mixed gas of kerosene and air is used for promoting the combustion of the coal gangue; and fourthly, a sealing assembly at the bottom of the hearth, which is called a hearth bottom sealing assembly for short, is arranged for controlling hot air and steam entering the hearth and simultaneously discharging slag.

Therefore, the utility model provides an electron is igniteed, the combustion-supporting waste rock energy-saving stove of hot-blast steam sets up hot-blast supply system and steam supply system on ordinary return air furnace basis to set up the novel domestic stove that electronic ignition subassembly and thorax end seal assembly constitute.

The main body of the hot air supply system is an air blower which is a common household small air blower, a heat circulation air inlet pipeline and an air blast pipe are made of steel pipes, and an air inlet valve is arranged on the air blast pipe.

The main body of the steam supply system is a water jacket formed by welding steel plates in a rolling way, the water jacket is arranged above the hearth, and the water inlet pipe with the valve and the steam gas guide pipe are made of common metal pipes.

The electronic ignition component consists of an oil cavity, an oil filling port with a cover, an inflation tube with a check valve, a gas guide tube with a valve and an electronic ignition button.

The hearth bottom sealing assembly consists of two circular steel plates with the same diameter as the hearth bottom and fixed on the rotating shaft, the rotating shaft and a connecting rod, the steel plates are provided with air inlet holes with the same size and position, generally, three air inlet holes are formed in the steel plates, one of the two steel plates is fixed, the other steel plate is rotatable, and the air volume can be freely adjusted through dislocation of the air inlet holes or sealing is formed.

The utility model discloses a stove working process as follows:

1 ignition process

Opening an oil filling port (19) of an oil cavity (20) in the electronic ignition assembly, adding enough kerosene into the oil cavity (20), covering and sealing the oil filling port (19); opening a check valve (21) of the inflation tube, inflating enough air by using an inflator, and closing the check valve (21); a valve (22) of a gas guide pipe (23) is unscrewed, an electronic ignition button (24) is used for ignition, and coal gangue in a hearth are ignited within 5-8 minutes; and (3) closing the electronic ignition button (24) and finishing the ignition process.

2 combustion process

After the ignition process is finished, the connecting rod (18) is operated to close the movable steel plate (15) of the hearth sealing assembly; starting a small household blower (1), opening an air inlet valve (2), pressurizing air by the blower (1), then quickly entering a thermal cycle air inlet pipeline (12), heating to hot air, blowing into a hearth (10) to react with coal and coal gangue due to the blockage of a steel plate of a hearth bottom sealing assembly, and rapidly increasing firepower by reaction heat to promote a steam jacket (8) to be heated to generate steam; and gradually opening the valve (4), introducing steam into the thermal circulation air inlet pipeline (12) along the air guide pipe (3), introducing the steam into the hearth (10) together with hot air, carrying out chemical reaction with coal in the coal gangue, further burning and oxidizing generated hydrogen and carbon monoxide, heating the coal gangue by the generated heat, promoting the burning of the coal gangue and finishing the burning process.

3 banking fire, reigniting and leaking ash process

When the fire is not used, the fire is sealed by rotating the connecting rod (18) by 90 degrees anticlockwise to form a fire sealing vent hole at the bottom of the furnace and closing the air blower (1) and the valve (4); if the secondary combustion is needed, the secondary combustion can be realized only by clockwise rotating the connecting rod (18) by 90 degrees to form a sealed combustion chamber at the bottom of the furnace and opening the blower (1) and the valve (4); if the ash slag needs to leak, the connecting rod (18) only needs to be rotated repeatedly.

By using the gangue energy-saving furnace provided by the utility model, gangue and inferior coal can be used as main fuel, thereby saving non-renewable valuable coal resources and solving the environmental problem of mass accumulation of gangue; the hearth temperature can quickly reach more than 1800 ℃ by adopting hot air pressurization, steam combustion supporting and an original hearth bottom sealing method, the firepower is strong, and the coal gangue can be stably combusted; the energy-saving furnace has the advantages of easy adjustment of fire, quick and sanitary ignition, convenient operation of fire banking and ash leakage, compact structure and multiple purposes.

Drawings

FIG. 1 is a schematic diagram of a gangue energy-saving furnace with electronic ignition and hot air steam combustion supporting, and FIG. 2 is a schematic diagram of a steel plate of a hearth bottom sealing assembly. In the figure, 1 is an air blower, 2 is an air inlet valve, 3 is an air guide pipe, 4 is a valve, 5 is an inlet valve, 6 is a furnace body, 7 is a smoke exhaust pipe, 8 is a steam jacket, 9 is a fireproof furnace core, 10 is a hearth, 11 is an inlet preheating pipe, 12 is a thermal cycle air inlet pipeline, 13 is a grate, 14 is a fixed steel plate, 15 is a movable steel plate, 16 is a rotating shaft, 17 is a furnace base, 18 is a connecting rod, 19 is an oil filling port, 20 is an oil cavity, 21 is a check valve, 22 is a valve, 23 is a gas guide pipe, 24 is an electronic fire striking button, 25 is a blast pipe, and 26 is an air inlet hole in the steel plate.

Detailed Description

The embodiment is an electronic ignition and hot air steam combustion-supporting gangue energy-saving furnace as shown in the attached drawing, wherein a furnace body (6) is 65cm in height, 60cm in width and 62cm in length, a hot air supply system and a steam supply system are arranged, and an electronic ignition assembly and a hearth sealing assembly are arranged. The hot air supply system consists of a blower (1), a blast pipe (25), a valve (2) on the blast pipe and a heat circulation air inlet pipeline (12) arranged at the lower part of the hearth, wherein the blower (1) is arranged at one side of the furnace; the steam supply system consists of a steam jacket (8), a water inlet pipe with a valve (5) and a steam gas guide pipe (3) with a valve (4) which are arranged above the hearth; the electronic ignition component is arranged below the furnace body and consists of an oil cavity (20), an oil filling port (19) with a cover, an inflation tube with a check valve (21), a gas guide tube (23) with a valve (22) and an electronic ignition button (24). The hearth bottom sealing assembly is arranged at the bottom of the furnace and consists of two circular steel plates, a rotating shaft (16) and a connecting rod (18), the diameter of the two circular steel plates is consistent with that of the hearth bottom, the two circular steel plates are fixed on the rotating shaft (16), 3 air inlet holes (26) with the same size and position are formed in the steel plates, one (14) of the two circular steel plates is fixed, and the other circular steel plate (15) is rotatable.

Claims

The utility model provides an electron ignition, combustion-supporting waste rock energy-saving furnace of hot-blast steam, by furnace (10), furnace body (6), fire-resistant wick (9), discharge fume pipe (7), grate (13), furnace base (17) and constitute, the utility model discloses a it has set up hot-blast supply system and steam supply system to seal assembly at the bottom of electronic ignition subassembly and the thorax has been set up.
The gangue energy-saving furnace with electronic ignition and combustion-supporting by hot air and steam as claimed in claim 1, characterized in that the hot air supply system consists of a blower (1), a blast pipe (25) and a heat circulation air inlet pipe (12) arranged at the lower part of the hearth.
The gangue energy-saving furnace with electronic ignition and combustion-supporting by hot air and steam as claimed in claim 1, characterized in that the steam supply system is composed of a steam jacket (8) arranged above the furnace chamber, a water inlet pipe with a valve (5) and a steam gas guide pipe (3) with a valve (4).
The gangue energy-saving furnace with electronic ignition and combustion-supporting by hot air and steam as claimed in claim 1, characterized in that the electronic ignition assembly is placed below the furnace body and consists of an oil cavity (20), an oil filling port (19) with a cover, an inflation tube with a check valve (21), a gas guide tube (23) with a valve (22) and an electronic ignition button (24).
The gangue energy-saving furnace with electronic ignition and combustion supporting by hot air and steam as claimed in claim 1, characterized in that the hearth bottom sealing assembly is arranged at the bottom of the furnace and consists of two circular steel plates (14) and (15) which have the same diameter as the hearth bottom and are fixed on a rotating shaft (16), the rotating shaft (16) and a connecting rod (18).
The electronic ignition, hot air and steam combustion-supporting gangue energy-saving furnace as claimed in claim 1 and 5, characterized in that the circular steel plate (14) is fixed in position, the steel plate (15) can rotate, and the two steel plates are provided with air inlet holes (26) with the same size and position.