CN102235680A

CN102235680A - High-efficient anti-scorching boiler furnace arch having functions of effect enhancement, energy saving, smoke prevention and dust removal

Info

Publication number: CN102235680A
Application number: CN2010101544033A
Authority: CN
Inventors: 徐锦弟
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-04-23
Filing date: 2010-04-23
Publication date: 2011-11-09

Abstract

The invention relates to a high-efficient anti-scorching boiler furnace arch having functions of effect enhancement, energy saving, smoke prevention and dust removal. A fire-resistant concrete heat-radiation arch is positioned in the center of a hearth, and gaps are formed between the arch and surrounding water cooled walls. Based on the heat radiation biquadrate principle, the blackness of the hearth is effectively improved to raise the temperature of a fire bed in a furnace, improve the burnout rate of coal, ensure full burnout of coal particles and the stroke of the coal particles in a main combustion zone in the center of the furnace and reduce the carbon content in slag by 5 to 10 percent; carbon black is not generated during the combustion of the boiler, the capacity can be averagely increased by over 5 to 10 tons; and due to the increase of the capacity of the boiler, dust emission reaches environmental protection standard, huge economical benefits are brought to an enterprise, the problem of insufficient heat supply for real estate development in most areas can be solved, the investment in heating expansion is saved, and the purposes of small size, large capacity, fast furnace starting, wide coal application, high burnout rate, coal saving, and no generation of carbon black in the furnace are achieved, and the Ringelman blackness of discharged smoke can reach the environmental protection requirement. The furnace arch can be widely applied to equipment such as a coal thrower boiler, a coal powder boiler, a fluidized bed boiler and a stoker-fired boiler.

Description

The efficient anti-scorch chimney arch of boiler Synergistic and energy-saving smoke abatement and dust control

Technical field: the present invention relates to boiler Synergistic and energy-saving smoke abatement device.

Background technology: at present, equipment such as spreader stoker boliler, coal-powder boiler, fluid bed furnace, grate furnace burning after-flame degree very inabundant, coal is low, smoke evacuation does not reach environmental protection requirement, and the coal-fired thermal efficiency is low; The traditional chimney arch of boiler is of a great variety, and its advantage is to adapt to that coal is wide, the after-flame degree is good, does not produce carbon black, but the boiler effective heating surface is long-pending little, heat exchange area is subjected to certain restriction, and the thermal gradient vector is too concentrated to flue one side and flowed, and easily causes interior coking of stove and smog discharge temperature too high; Solve above-mentioned these problems and become urgent need.

The content of invention:

Overcome the deficiency of present technology, design a kind of simple in structure, volume is little, it is big to exert oneself, rise stove fast, adapt to that coal is wide, the after-flame degree is good, economize on coal, no longer produce carbon black and flue gas in the stove, the discharging lingemann blackness can reach environmental protection requirement at boiler Synergistic and energy-saving smoke abatement device.The efficient anti-scorch chimney arch of boiler Synergistic and energy-saving smoke abatement and dust control is that fire-resistant concrete heat radiation arch is set at the burner hearth center, and the counter-fire back side is equipped with the suspension type pull bar on the arch, and is gapped between arch and the peripheral water-cooling wall.The present invention is owing to fire-resistant concrete heat radiation arch is set at the burner hearth center, gapped between arch and the peripheral water-cooling wall, therefore impel flame after being subjected to blackbody radiation by central burner change into along around water-cooling wall climb heat exchange, to increase furnace flame degree of filling and heat exchange value, reduce exhaust gas temperature, to improve fire box temperature, make the complete after-flame of coal, do not produce carbon black.Utilize heat radiation biquadratic principle, effectively raise the blackness of burner hearth, make grate temperature raising in the stove, improve the after-flame degree of coal, guarantee the abundant after-flame of coal grain and the stroke in coal grain primary zone, center in stove, make boiler slag carbon content reduce heavy 5-10%, boiler no longer includes carbon black and generates when burning, can on average improve and exert oneself more than the 5-10T, boiler output increases, not only the flue dust environment protection standard, brought huge economic benefit to enterprise simultaneously, can solve the problem of most regional house property exploitation heat supply deficiencies, save this heating increase-volume investment, transform back just recoverable investment of several months.Realized that volume is little, the power of exerting oneself is big, it is fast to play stove, it is wide to adapt to coal, the after-flame degree is good, economizes on coal, no longer produces carbon black in the energy-conservation source, stove and the fume emission lingemann blackness can reach environmental protection requirement.

Description of drawings:

Fig. 1 is a front view of the present invention;

Fig. 2 is an installment state view of the present invention.

The specific embodiment:

Boiler Synergistic and energy-saving smoke abatement device as shown in Figure 1, is that the auxilliary arch 1 of penetrating of fire-resistant concrete heat is set at the burner hearth center, between arch and the peripheral water-cooling wall gapped 2; The counter-fire back side can be equipped with suspension type pull bar 3 on the arch.Operation principle of the present invention is: all leave certain contact gap with water-cooling wall all around in Synergistic and energy-saving arch burner hearth, the energy that produces when boiling constantly contacts nearest position with water-cooling wall along peripheral slit, keep continuing to rise, this conductive thermal exchange effect is fairly obvious, the coal of the original same quantity of burning, but the water in the wall is because of near with the flame distance, and the speed of heat absorption is also just faster, and also just be shortened heat time heating time.

Claims

1. the efficient anti-scorch chimney arch of boiler Synergistic and energy-saving smoke abatement and dust control is characterized in that: be fire-resistant concrete heat radiation arch is set at the burner hearth center, and gapped between arch and the peripheral water-cooling wall.