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Heating furnace with double furnace bodies

A heating furnace and double furnace body technology, applied in the field of furnaces and kilns, can solve problems such as uneven heating temperature, and achieve the effects of equal hot air flow paths, high thermal efficiency, and uniform flow velocity distribution

Inactive Publication Date: 2014-08-06
杨东进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a double furnace body heating furnace to solve the problem of uneven heating temperature, improve thermal efficiency, and reduce heating energy consumption

Method used

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  • Heating furnace with double furnace bodies
  • Heating furnace with double furnace bodies
  • Heating furnace with double furnace bodies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] See figure 1 , figure 2 , image 3 , Figure 4 , Picture 9 As shown, a double furnace body heating furnace includes an outer furnace body 1, an inner furnace body 2, and a furnace cover 3. The outer furnace body 1 is a circular steel vessel with a thermal insulation layer on the inner surface to reduce heat loss and heating energy consumption. An annular bearing platform 11 is arranged inside and an annular sealing ring 12 is arranged on the upper part. The lower side of the bearing platform 11 is provided with a vent hole (air inlet) 13, and the upper side of the bearing platform 11 is provided with a vent hole (air outlet) 14; the bottom of the inner furnace body 2 is provided with a grate plate 21 made of heat-resistant steel. The upper part is provided with two lifting holes 22, and the iron alloy material 4 is contained inside. The inner furnace body 2 is seated on the bearing platform 11 in the outer furnace body 1, and the contact surface between the inner furna...

Embodiment 2

[0036] See Figure 5 , Image 6 , Figure 7 As shown, the furnace cover 3 of the double furnace body heating furnace is provided with a flow equalizing ring 31, which is composed of a cylindrical part arranged eccentrically from the center of the furnace cover and a baffle plate 311 arranged concentrically with the center of the furnace cover. , The furnace cover is surrounded by a crescent-shaped channel, and the flow rate of the collected air flow is uniform, so that the air flow through the inner furnace body ferroalloy material 4 is more uniform; the outer furnace body 1 is provided with an annular groove 17 and the sealing ring 12 is arranged in the annular groove 17 In the production process, the annular groove 17 is filled with water, and the sealing ring 12 has a longer life under the protection of water; the outer furnace body 1 is provided with a guide rod 18 for positioning the inner furnace body when the inner furnace body 2 is hoisted in , The guide rods are arrange...

Embodiment 3

[0038] See Figure 8 , Picture 10 , Picture 11 , Picture 12 , Figure 13 As shown, the double furnace body heating furnace is provided with a furnace lid opening and closing device 5, and the furnace lid 3 is connected to the furnace lid opening and closing device 5 and can be opened or covered by the furnace lid opening and closing device 5. The furnace cover opening and closing device includes a lever hinged with the furnace cover, a lever support, and a hydraulic cylinder that drives the lever. Picture 10 Among them, S1 is a double furnace heating furnace (1S1 is No. 1 furnace, 2S1 is No. 2 furnace, 3S1 is No. 3 furnace), S2 is flue gas furnace, S3 is combustion-supporting fan, S4 is gas pipeline, S5 is chimney, S6 There are 9 valves in total, Picture 11 , Picture 12 , Figure 13 Among them, S7 is the "open state" of valve S6, and S8 is the "off state" of valve S6. The rest is the same as in Example 2.

[0039] The working process of this embodiment:

[0040] The operatio...

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Abstract

The invention is suitable for heating and baking bulk materials such as ferroalloy for steelmaking, etc., and relates to a heating furnace with double furnace bodies, including an outer furnace body, an inner furnace body and a furnace cover. The outer furnace body is a steel container with a heat-insulating layer. There is a platform inside, a sealing ring on the upper part, and ventilation holes on the upper and lower sides of the platform; the bottom of the inner furnace body has a grate made of heat-resistant steel. There are hoisting holes or hoisting trunnions on the upper part of the plate, and ferroalloy materials are contained inside; the inner furnace body sits on the bearing platform of the outer furnace body, and the contact surface between the inner furnace body and the bearing platform of the outer furnace body is the sealing surface; the furnace cover sits Placed on the sealing ring on the outer furnace body; when the furnace cover is removed, the inner furnace body can be hoisted into or out of the outer furnace body. The invention evenly heats the ferroalloy material, has simple structure, high reliability, no burner in the furnace, no local high temperature, does not burn the furnace wall, high thermal efficiency, is matched with a general flue gas furnace, has reliable performance and long service life.

Description

Technical field [0001] The present invention belongs to the field of furnace and kiln technology (F27), involving a block, granular material heating furnace, especially the iron alloy granular heating furnace. Background technique [0002] In industrial production, blocks or granular materials often need to be heated.The so -called block or granular material refers to solid objects with a spherical, short cylindrical or irregular particle size of more than 5 mm. The block material generally refers to solid objects with a particle size of more than 20 mm. The most common block -shaped shapeThe material is a rock.Iron alloys are also a type of block or granular material. In the production of steelmaking, in order to adjust the steel water composition and reduce the harmful element content, the iron alloy is needed to the steel water.Usually, iron alloy is block or granular.In order to remove the crystal water in the iron alloy and reduce the cooling effect of the iron alloy to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B19/02
Inventor 杨东进
Owner 杨东进
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