Boiler for carrying out mixed combustion on carbon black tail gas and coal

A technology of mixed combustion and exhaust gas is applied in the field of boilers where carbon black exhaust gas and coal are mixed combustion, which can solve problems such as environmental pollution and energy waste, and achieve the effects of improving combustion efficiency, strengthening disturbance and improving fullness.

Active Publication Date: 2012-11-21
WAI MING ENVIRONMENTAL PROTECTION EQUIP
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the rapid development of carbon black production, the output of carbon black tail gas is increasing day by day, and the emission to the air will cause great waste of energy and serious environmental pollution

Method used

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  • Boiler for carrying out mixed combustion on carbon black tail gas and coal

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Embodiment Construction

[0019] Such as figure 1 Shown as follows: 1 is the scale-type non-leaking coal grate that rotates forward, 2 is the furnace, 3 is the water-cooled screen, 4 is the layered coal hopper, 5 is the carbon black exhaust gas burner, 6 is the slag and ash discharging equipment, 7 It is a horizontal flue, 8 is a high temperature superheater, 9 is a low temperature superheater, 10 is a tail flue, 11 is an economizer, 12 is an air preheater, and 13 is a front and rear arch.

[0020] A boiler for mixed combustion of carbon black tail gas and coal, comprising a furnace 2, a horizontal flue 7, a tail flue 10, combustion equipment and slag and ash discharge equipment 6, a furnace 2, a horizontal flue 7 and a tail flue 10 The combustion equipment includes a layered coal hopper 4, a scale-type non-spill coal grate 1 that rotates forward, and a carbon black exhaust gas burner 5, where the carbon black exhaust gas burner 5 and the scale-type carbon black exhaust gas burner are used. Combustion o...

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Abstract

The invention discloses a boiler for carrying out mixed combustion on carbon black tail gas and coal so as to produce steam for steam supply and power generation. The technical scheme adopted by the invention is as follows: a boiler for carrying out mixed combustion on carbon black tail gas and coal comprises a hearth, a horizontal flue, a tail flue, a combustion device and a slag tapping and ashdischarging device, wherein the hearth, the horizontal flue and the tail flue constitute a square-n-shaped structure; the combustion device comprises an interstratified coal hopper, a clockwise-rotating flake type coal tight grate, and carbon black tail gas combustors; the slag tapping and ash discharging device is arranged below the clockwise-rotating flake type coal tight grate; the lower part of the hearth and two side walls above the clockwise-rotating flake type coal tight grate are respectively provided with a carbon black tail gas combustor; the inside of the horizontal flue is provided with a multistage superheater; and the inside of the tail flue is provided with a coal economizer and an air preheater. By the use of the technical scheme above, the invention solves the existing technical problems, and provides a new boiler for carrying out mixed combustion on carbon black tail gas and coal.

Description

Technical field [0001] The invention belongs to a boiler for mixed combustion of carbon black tail gas and coal to generate steam for steam supply and power generation. Background technique [0002] Carbon black tail gas is a by-product in the carbon black production process. Its calorific value is very low, only 650Kcal / Nm 3 In the past, this gas was rarely used as fuel for boilers, and was usually discharged as exhaust gas to the air. With the rapid development of carbon black production, the output of carbon black tail gas is increasing day by day, and air emissions will cause a great waste of energy and serious environmental pollution. How to effectively use carbon black tail gas has become a major issue to be solved urgently in carbon black production. [0003] Therefore, a newly developed boiler with mixed combustion of carbon black tail gas and coal is developed. The carbon black tail gas is sent to the boiler as fuel. After being mixed and burned with coal, steam is genera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23C1/04
Inventor 项光明李荣朱琳珺
Owner WAI MING ENVIRONMENTAL PROTECTION EQUIP
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