Heating furnace with double furnace bodies

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

Inactive Publication Date: 2012-09-19
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] refer to figure 1 , figure 2 , image 3 , Figure 4 , Figure 9 Shown, double furnace body heating furnace, it comprises outer furnace body 1, interior furnace body 2, furnace cover 3. The outer furnace body 1 is a circular steel container with a thermal insulation layer on the inner surface to reduce heat loss and reduce heating energy consumption. There is an annular bearing platform 11 inside, and an annular sealing ring 12 is arranged on the upper part. The lower side of the platform 11 is provided with a ventilation hole (air inlet) 13, and the upper side of the platform 11 is provided with a ventilation 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 hoisting holes 22, and the ferroalloy material 4 is filled inside. The inner furnace body 2 sits on the bearing platform 11 in the outer furnace body 1, and the contact surface between the inner furna...

Embodiment 2

[0036] refer to Figure 5 , Figure 6 , Figure 7 As shown, the furnace cover 3 of the double furnace body heating furnace is provided with a flow equalizing ring 31, and the flow sharing ring 31 is composed of a cylindrical part arranged eccentrically with the center of the furnace cover and a baffle 311 arranged concentrically with the center of the furnace cover. , A crescent-shaped channel is formed between the furnace covers, and the flow rate of the collected airflow is uniform, so that the airflow flowing through the ferroalloy material 4 of the inner furnace body 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 Inside, during 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 furna...

Embodiment 3

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

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Abstract

The invention is suitable for heating and roasting blocky materials such as an iron alloy for steelmaking and the like and relates to a heating furnace with double furnace bodies. The heating furnace comprises an outer furnace body, an inner furnace body and a furnace cover, wherein the outer furnace body is a steel container and is provided with a heat-insulating layer; a bearing platform is arranged inside the outer furnace body; a sealing ring is arranged at the upper part of the outer furnace body; ventilation holes are respectively formed in the upper side and the lower side of the bearing platform of the outer furnace body; a grate made of heat-resistant steel is arranged at the bottom of the inner furnace body; a hoisting hole or a hoisting lug shaft is arranged at the upper part of the inner furnace body; an iron alloy material is accommodated inside the inner furnace body; the inner furnace body is laid on the bearing platform in the outer furnace body; a contacted surface between the inner furnace body and the bearing platform in the outer furnace body is a sealing surface; the furnace cover is laid on the sealing ring of the outer furnace body; and when the furnace cover is moved away, the inner furnace body can be hoisted into or out of the outer furnace body. The heating furnace disclosed by the invention has the advantages of uniformity in heating of the iron alloy material, simple structure, high reliability, no burning nozzle in the furnace, no local high temperature, no possibility of burning out a furnace wall, high thermal efficiency, reliable performance and long service life, and a general flue gas furnace is used in a matching manner.

Description

technical field [0001] The invention belongs to the technical field of furnaces (F27), and relates to a heating furnace for bulk and granular materials, in particular to a heating furnace for ferroalloy granular materials. Background technique [0002] In industrial production, it is often necessary to heat lump or granular materials. The so-called massive or granular materials refer to spherical, short cylindrical or irregularly shaped solids with a particle size of more than 5 mm. Blocky materials generally refer to solids with a particle size of more than 20 mm. The material is crushed rock. Ferroalloy material is also a block or granular material. In steelmaking production, in order to adjust the composition of molten steel and reduce the content of harmful elements, it is necessary to add ferroalloy to molten steel. Typically, ferroalloys are in bulk or granular form. In order to remove the crystal water in the ferroalloy and reduce the cooling effect of the ferroall...

Claims

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Application Information

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IPC IPC(8): F27B19/02
Inventor 杨东进
Owner 杨东进
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