Inlet sealing and connecting device for exhaust-heating boiler

A waste heat boiler and inlet sealing technology, which is applied in the field of sealing connection devices, can solve problems such as increased energy consumption, manual dust removal, and complicated operation, and achieve the effects of good sealing performance, reduced power consumption, and simple operation

Active Publication Date: 2009-06-10
CHINA ENFI ENGINEERING CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refractory brick structure is not flexible. Therefore, the sealing of this connection structure is poor, and the smoke leakage in the gap is large. The air leakage rate is generally 40%-80%. It is difficult to treat the tail gas at the rear; Corrosion will occur; again, energy is wasted, and the heat taken away by air leakage and cooling water cannot usually be recycled. Due to air leakage, the energy consumption of the induced draft fan and rear exhaust gas treatment will increase. Finally, the operating environment is poor. There are large gaps between them, and the flue gas often escapes, polluting the operating environment, and the refractory brick sealing structure is seriously dusty, requiring manual cleaning, while the water-cooled water jacket structure has a short life, and the w

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  • Inlet sealing and connecting device for exhaust-heating boiler
  • Inlet sealing and connecting device for exhaust-heating boiler
  • Inlet sealing and connecting device for exhaust-heating boiler

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Example Embodiment

[0032] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the drawings, in which the same reference numerals denote the same elements throughout. The embodiments described below with reference to the accompanying drawings are used to explain the present invention. The embodiments are exemplary and should not be construed as limiting the present invention.

[0033] See Figure 1 to Figure 8 The inlet sealing connection device for a waste heat boiler according to an embodiment of the present invention includes a lower sealing connection piece 1 and a flexible sealing connection piece 2. The lower sealing connection piece 1 is suitable for being buckled on the top of the smelting furnace 10, that is, It is buckled on the flue gas outlet 10A of the smelting furnace 10. It should be noted that the flue gas outlet 10A of the smelting furnace 10 is generally provided with a flue gas outlet cover 10B, and the lower sealing conne...

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Abstract

The invention discloses a connection device used for sealing entrance of waste heat boiler, comprising a lower part sealing connection piece which is buttoned up at the flue gas exit of melting furnace, and a flexible sealing connection piece one end of which is suitable to be in sealed connection with the waste heat boiler and the other end of which is in sealed connection with the lower part sealing connection piece, thus the flexible sealing connection piece and the lower part sealing connection piece can move relative to the waste heat boiler. The sealing connection device of the invention is composed of the lower part connection part and the flexible connection part, wherein, the flexible connection part is provided with expansion margin, thus satisfying thermal expansion when in performance and avoiding the occurrence of gap due to the thermal expansion of the waste heat boiler and the melting furnace. Therefore, the connection device used for sealing entrance of waste heat boiler has the advantages of fine sealing performance, simple operation and low cost.

Description

Technical field [0001] The invention relates to a sealed connection device used between a waste heat boiler and a smelting furnace, in particular to a sealed connection device installed between the inlet of the waste heat boiler and the flue gas outlet of the smelting furnace. Background technique [0002] In the smelting field, the waste heat boiler is used to recover the heat of the high-temperature flue gas discharged from the smelting furnace. In the prior art, a refractory brick structure or a water-cooled water jacket structure is used between the smelting furnace and the waste heat boiler to form a sealed flue structure . The high-temperature flue gas discharged from the smelting furnace enters the waste heat boiler, and the waste heat boiler takes away the heat energy of the high-temperature flue gas through heat exchange and transports it to the end user. [0003] Since the smelting furnace and the waste heat boiler will expand and deform after being subjected to high te...

Claims

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Application Information

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IPC IPC(8): F22B1/16
Inventor 徐建炎陈逢胜王岗
Owner CHINA ENFI ENGINEERING CORPORATION
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