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A nickel smelting system tail gas waste heat boiler

A waste heat boiler and exhaust gas technology, applied in the direction of furnaces, waste heat treatment, furnace components, etc., to achieve the effect of reducing air pollution

Active Publication Date: 2015-09-09
四川川润动力设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Moreover, because CO will explode when it reaches a certain concentration, the dust content at the outlet of the waste heat boiler is 150g / NM 3

Method used

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  • A nickel smelting system tail gas waste heat boiler
  • A nickel smelting system tail gas waste heat boiler
  • A nickel smelting system tail gas waste heat boiler

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Embodiment Construction

[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0031] All features disclosed in this specification, except mutually exclusive features, can be combined in any way.

[0032] Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0033] Such as figure 1 and figure 2 As shown, a tail gas waste heat boiler of a nickel smelting system includes a heat excha...

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Abstract

The invention provides a waste heat boiler utilizing tail gas of a nickel smelting system. The waste heat boiler comprises a heat exchange device, ash hoppers (11), a combustion chamber (1), combustors (4), a burnout chamber (2), an air supply device (3), an explosion protection device (5) and a slag screen (6) with horn-shaped fins (13). The waste heat boiler has the advantages that tail gas is utilized in a strengthened manner by means of combustion, environmental pollution is prevented, explosion in a combustion procedure is also prevented, and abrasion to the boiler due to dust of the tail gas is greatly reduced.

Description

technical field [0001] The invention relates to a boiler for enhancing waste heat utilization of tail gas, in particular to a waste heat boiler suitable for utilization of nickel smelting tail gas. Background technique [0002] In the nickel smelting kiln production line, due to the nickel smelting process, the nickel smelting waste heat boiler uses negative oxygen combustion during the ore combustion stage, which will produce a large amount of CO, which will also seriously pollute the environment when it is discharged into the atmosphere with the exhaust gas. After coal is burned in the rotary kiln, the exhaust gas contains 15-20% CO and SO 2 , and the outlet exhaust gas temperature is around 900 degrees Celsius. Therefore, solving the CO in the exhaust gas and making full use of the heat source to make the resources be effectively used has become a problem that we need to solve. [0003] Moreover, because CO will explode when it reaches a certain concentration, the dust ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F22B1/18F27D17/00
CPCY02P10/25
Inventor 徐国义丁淑辉陈黎唐宏伟
Owner 四川川润动力设备有限公司