CN201103897Y

CN201103897Y - Thoroughly cleaning combustion device

Info

Publication number: CN201103897Y
Application number: CNU2007200254215U
Authority: CN
Inventors: 王延明; 王延德
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-07-18
Filing date: 2007-07-18
Publication date: 2008-08-20
Anticipated expiration: 2017-07-18

Abstract

The utility model discloses a full clean combustion device, which comprises a furnace, a full combustion area, a heat energy utilization part, etc.; wherein, besides the combustion is carried out in the furnace, smoke gas is completely burned in the full combustion area and settles the dust; after going through a furnace bottom, a furnace wall and a furnace roof, secondary air enters a part which is provided with an opening in the front of the full combustion area and which is provided with a smoke flue with a small circulation section. After mixed with the smoke gas, the secondary air generates a large amount of eddy currents under the effect of the scraggy grooved surface of the full combustion area. When the eddy currents extend to the surroundings, the circulation section is expanded, which reduces the flow rate, prolongs the combustion time, ensures the full contact among combustible gas, combustible carbon particles and the oxygen, and ensures high temperature and reaction time so as to ensure the complete combustion. The full combustion area settles solid particles. The full combustion implies the full decomposition, thus realizing the clean combustion.

Description

Adequate, clean combustion equipment

Affiliated technical field

The utility model relates to a kind of adequate, clean combustion equipment, is applicable to the abundant clean burning of various solid-state combustibles.

Background technology

At present, in various boiler kilns, much all can not make the solid-state combustible that is added obtain abundant clean burning, cause heat production low, pollute big, be difficult to utilize a lot of low-calorie fuel.Flue dust is attached to causing the low and corrosion of heat transfer efficiency on the heat absorption tube wall simultaneously; Flue dust is attached on the kiln goods influences quality of item.The pollution that is caused in order to prevent to burn has to use moulded coal or anthracite, also has a large amount of combustible components to waste with moulded coal or anthracite.Limited fuel source, increased the heat production cost, many solid-state combustibles not only can not utilize simultaneously, become the rubbish of contaminated environment on the contrary.

Summary of the invention

The utility model provides a kind of adequate, clean combustion equipment, because sufficient combustion, so quantity of heat production is big, fuel saving; Because sufficient combustion, complete decomposition has just been taked measurements for reduction rather than dedusting when discharging fume to the end simultaneously before burning is finished, so greatly reduced dusty gas and soot emissions, realized clean burning; Because sufficient combustion, thus to various solid-state combustibles require lowly, can utilize various renewable and waste combustible materials to substitute fossil fuels, fuel source is wide, the heat production cost is low.

The technical scheme in the invention for solving the technical problem is: a wind can controlling air quantity enters under fire grate, and solid-state combustible burns in burner hearth, and the flame that is produced thoroughly burns to combustible component after entering abundant combustion zone again.Fully the import and export of combustion zone all are from middle opening, and flame at first runs into stopping of disk when entering abundant combustion zone, air-flow from rising change into level to around diffusion.At this moment the big solid granulates of being carried secretly by air-flow is thrown down because of the lifting that has lacked ascending air is numerous and confused, has eliminated a part of flue dust source.Flame enters the narrow slit below the disk then, and running into the high temperature air of gushing out from the narrow slit that opening makes progress at once is secondary wind, and the secondary wind that can control size is to arrive abundant combustion zone from the furnace bottom front portion through the preheating of furnace bottom, furnace wall and furnace roof.The mixed zone of secondary wind and flame is the less position of flow area in the flue, thereby the out-of-date flow velocity of air communication is very high, and air pressure is very low, so the flame rapid mixing of secondary wind that upwards blows and horizontal proliferation.Combustible when secondary wind and flame begin to mix in the flame takes fire.Continuation to the flame of external diffusion be carry sufficient air carry out burned flame.Flame one side flow area when external diffusion enlarges rapidly, and flow velocity reduces rapidly, and a large amount of eddy current and mixing are caused in rough and uneven in surface surface on the one hand, impel combustible fully to contact with oxygen.Downward-sloping with the outer below of disk opposed bottom surface, flow area enlarges more, and it is very low that the flow velocity of flame becomes, and the dust that burn in the flame begins sedimentation, and the outward flange that has only the flame of cleaning just to walk around disk enters above the disk.Perforate top cover in the middle of above disk, being added with, enter back, disk top flame begin from around assemble to the center, flow area from big to small, flow velocity improves constantly, scraggly surface is still passed through in the centre, causes a large amount of eddy current and mixing like this.Constantly near finishing, remaining combustible still has the condition that oxygen is finished burning of obtaining on the one hand in burning on the one hand.Finish cleaning high-temperature gas after the burning from the outlet ejection of abundant combustion zone, enter the heat energy utilization part.

The beneficial effects of the utility model are: sufficient combustion, and environmental, fuel saving, fuel source is wide.

Description of drawings

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

This figure is the longitudinal cross-section view of adequate, clean combustion equipment.1. heat energy utilization parts among the figure, 2. perforate top cover, 3. disk, 4. secondary wind outlet, 5. abundant combustion zone, 6. burner hearth, 7. solid-state combustible, 8. fire grate, 9. secondary wind preheating channel, 10. secondary wind inlet, 11. wind inlets, 12. abundant combustion zone imports, 13. abundant combustion zones outlets.

The specific embodiment

Solid-state combustible (7) drops into burner hearth (6), enters a wind burning under fire grate (8).The size of a wind is regulated by a wind inlet (11), usually than intake is little down without the fire grate of regulating (8), so the flue dust of kicking up also will lack.When flame enters abundant combustion zone (5) from abundant combustion zone import (12), at first run into stopping of disk (3), air-flow changes level into to diffusion all around from rising.At this moment the big solid granulates of being carried secretly by air-flow is thrown down because of the lifting that has lacked ascending air is numerous and confused, has eliminated a part of flue dust source.Flame enters the narrow slit below the disk (3) then, runs into the high temperature air of gushing out from secondary wind outlet (4) at once.The size of secondary wind is controlled by secondary wind inlet (10), and secondary wind is the high temperature wind that heated in secondary wind preheating channel (9).Secondary wind preheating channel (9) is by the secondary wind inlet of opening in the furnace bottom front portion (10), is positioned at that the crack of furnace bottom, furnace wall and furnace roof and secondary wind outlet (4) forms.Secondary wind outlet (4) is positioned at the topmost of secondary wind preheating channel, and opening upwards.The position of secondary wind outlet (4) is the less position of flow area in the flue, and the out-of-date flow velocity of state and air communication is very high, and air pressure is very low.So the secondary wind that upwards blows and the flame rapid mixing of horizontal proliferation.Combustible when secondary wind and flame begin to mix in the flame takes fire.Continuation to the flame of external diffusion be carry sufficient air carry out burned flame.Flame when external diffusion on the one hand flow area enlarge rapidly, flow velocity reduces rapidly, a large amount of eddy current and mixing are caused in rough and uneven in surface surface on the one hand, impel fully contacting of combustible and oxygen.Downward-sloping with the outer below of disk (3) opposed bottom surface, flow area enlarges more, and it is very low that the flow velocity of flame becomes, and the dust that burn in the flame begins sedimentation, and the outward flange that has only the flame of cleaning just to walk around disk (3) enters above the disk (3).Perforate top cover (2) in the middle of disk (3) top is added with, enter disk (3) top back flame begin from around assemble to the center, flow area from big to small, flow velocity improves constantly, scraggly surface is still passed through in the centre, causes a large amount of eddy current and mixing like this.Constantly near finishing, remaining combustible still has the condition that oxygen is finished burning of obtaining on the one hand in burning on the one hand.The cleaning high-temperature gas of finishing after the burning exports (13) ejection from abundant combustion zone, enter heat energy utilization part (1).

Claims

1. an adequate, clean combustion equipment partly is made up of burner hearth, abundant combustion zone, disk, secondary wind preheating channel, heat energy utilization; It is characterized in that: less position of flow area in the flue before abundant combustion zone, secondary wind outlet position.

2. adequate, clean combustion equipment according to claim 1 is characterized in that: fully the surface that contacts with flame in the combustion zone has scraggly groove, disk below outward right bottom surface downward-sloping.

3. adequate, clean combustion equipment according to claim 1 is characterized in that: secondary wind preheating channel is by the secondary wind inlet of opening in the furnace bottom front portion, is positioned at that the outlet of the passage of furnace bottom, furnace wall and furnace roof and secondary wind forms.