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Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven

A flue gas waste heat and flue technology, applied in coking oven bricklaying operations, energy input, etc., can solve the problems of environmental pollution, waste of energy, etc., achieve reasonable production steps, high production efficiency, and overcome high temperature and negative pressure suction Effect

Active Publication Date: 2013-10-30
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the coking process, the flue gas produced by the combustion of coke oven gas is directly discharged into the air by many enterprises, which not only wastes energy, but also pollutes the environment

Method used

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  • Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven
  • Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven
  • Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven

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Embodiment 1

[0042] The flue vault online opening connection method for coke oven flue gas waste heat utilization of the present invention is characterized in that it comprises the following steps:

[0043] a. Flue concrete crushing and demolition

[0044] Lay out 3000mm×3200mm wires at the front and rear openings of the flue flap valve, use a drill breaker to drill holes at the corners of the sidelines, then use a concrete cutting chainsaw to cut the concrete, and finally use a crane to lift out the concrete as a whole ;

[0045] b. Clay refractory bricks are built in the gap between the flue vault 1 and the concrete 15

[0046] Determine the aperture of the flue vault according to the diameter of the outer flue pipe, 2400mm×2600mm. After cleaning the insulation bricks between the flue vault and the concrete gap, build a 230mm thick clay refractory brick on the flue vault to form a rectangular wellhead of 2400mm×2600mm;

[0047] c. The manufacture and installation of the steel wellhead...

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Abstract

The invention discloses a flue arch crown online opening pipe connecting method for smoke waste-heat utilization of a coke oven. The flue arch crown online opening pipe connecting method is characterized by comprising the following steps of: a, crushing and dismantling concrete in a flue; b, building clay refractory bricks in a gap between an arch crown and the concrete of the flue; c, making and installing a profile steel wellhead ring of the arch crown of the flue; d, dismantling the refractory bricks of the arch crown of the flue; and e, jointing the profile steel wellhead ring of a flue opening with an outer flue pipe. The flue arch crown online opening pipe connecting method for smoke waste-heat utilization of the coke oven, disclosed by the invention, is reasonable in design of making steps, does not influence the normal production of the coke oven, overcomes the influence of high temperature and negative pressure suction, prevents the refractory bricks from falling in the flue andis high in production efficiency; moreover, a connector which is jointed with the openings has good airtightness,.

Description

technical field [0001] The invention relates to a flue vault online opening connection method, in particular to a flue vault online opening connection method for coke oven flue gas waste heat utilization. Background technique [0002] Coking enterprises are indispensable enterprises in the production of steel and play an important role in modernization construction. At the same time, these enterprises are also large energy consumers, and energy consumption accounts for a large proportion of product costs. Therefore, the energy saving and consumption reduction of enterprises is particularly important. In the coking process, many enterprises discharge the flue gas produced by the combustion of coke oven gas directly into the air, which not only wastes energy, but also pollutes the environment. The waste heat boiler recovers waste heat from the flue gas at about 300°C in the flue to generate steam at about 0.7MPa, which can be used for various purposes such as heating, cooling...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B29/02
CPCY02P20/129
Inventor 任社安程爱民蔡伟王刚
Owner MCC5 GROUP CORP SHANGHAI
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