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Device and method for rapidly drying heating balls through tail gas of rotary hearth furnace

A technology of rapid drying and rotary hearth furnace, applied in drying, drying machine, heating device and other directions, can solve the problems of long curing time of heating ball and difficult to reach the standard of moisture, and achieve shortened curing time, energy saving and high efficiency drying. dry effect

Pending Publication Date: 2022-01-11
GUANGDONG HUAXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it enters the rainy season, the natural maintenance time of the heating ball will be longer, and the water content is difficult to meet the standard

Method used

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  • Device and method for rapidly drying heating balls through tail gas of rotary hearth furnace
  • Device and method for rapidly drying heating balls through tail gas of rotary hearth furnace

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Rear", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Axial", "Radial", "Circumferential" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the descriptio...

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Abstract

The invention discloses a device and method for rapidly drying heating balls through tail gas of a rotary hearth furnace. The method for rapidly drying the heating balls through the tail gas of the rotary hearth furnace is completed through the device for rapidly drying the heating balls through the tail gas of the rotary hearth furnace; and the device for rapidly drying the heating balls through the tail gas of the rotary hearth furnace comprises a heat exchanger and a tail gas chimney of the rotary hearth furnace, wherein the upper surface of the heat exchanger is used for laying heating balls to be dried, a hot end inlet of the heat exchanger is connected with the tail gas chimney of the rotary hearth furnace through an inlet flue gas pipeline, a cold end outlet of the heat exchanger is connected with an exhaust flue gas pipeline, and an induced draft fan is arranged on the exhaust flue gas pipeline; and a temperature and humidity measuring instrument is arranged above the heat exchanger and used for measuring the temperature and humidity of the heating balls on the surface layer, and the temperature and humidity measuring instrument is electrically connected with the induced draft fan. The temperature and humidity measuring instrument can monitor the temperature and humidity of the heating balls on the surface layer in real time, so that the rotating speed of the induced draft fan can be regulated and controlled in real time. According to the device and method for rapidly drying the heating balls disclosed by the invention, energy is saved, the efficiency is high, and the good popularization value is achieved.

Description

technical field [0001] The invention relates to a drying device, in particular to a device and a method for rapidly drying a heating ball by tail gas of a rotary hearth furnace. Background technique [0002] In order to increase the steel output and reduce the iron-steel ratio of steelmaking, the method of increasing the amount of scrap steel in the molten iron is usually adopted, but this method will cause a large drop in the temperature of the molten iron. Therefore, it is necessary to add a certain amount of heating balls (Fcad≥65%) while adding scrap steel. The heating ball is made of coking dedusting ash (CDQ powder) and the powder under the metal ball sieve. It is pressed into balls by a double-roller ball press machine. After natural drying, it can be sent to the steelmaking plant for use when the curing moisture reaches <3%. . The heating ball needs 9 days of natural maintenance to meet the standard in sunny days. The maintenance time is too long, and the mainte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F26B23/00C21B13/00
CPCF27D17/004F26B23/001C21B13/00Y02P10/20Y02P10/25Y02P70/10
Inventor 黄辉李卫国董磊温尹宁冯福海彭福成吴列文莫梅朱学良许贵生杨小华亢博
Owner GUANGDONG HUAXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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