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Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method

A double push plate, furnace technology, applied in the field of vanadium-nitrogen alloys, can solve the problems of air pollution, short operation cycle, difficult replacement of silicon molybdenum rods, etc., to reduce environmental pollution, reduce production costs, and eliminate kiln blocking accidents.

Active Publication Date: 2016-05-04
XINJIANG GUIZHI REFRACTORIES CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] The invention provides a flame-trap gas-fired energy-saving double-push plate furnace, a vanadium-nitrogen alloy device and a preparation method, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problems of high energy consumption, large loss, and Silicon-molybdenum rods are not easy to replace, temperature control is unstable, operation cycle is short, carbon monoxide gas generated in the material reaction area is discharged to the outside, causing serious pollution to the atmosphere

Method used

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  • Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method
  • Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method
  • Flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy device and preparation method

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Experimental program
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Effect test

Embodiment 1

[0034] Embodiment 1, as attached figure 2 , 3 As shown, the flame-trap gas-fired energy-saving double-push plate kiln includes a kiln body 1; In the bottom of the kiln body 1 of the first preheating section, the second preheating section and the high temperature section, two smoke exhaust channels 2 are arranged at intervals along the axial direction, corresponding to the first preheating section, the second preheating section and the high temperature section. Two silicon carbide flame shields 3 are symmetrically fixedly connected to the front and rear sides of the furnace body 1, and the two silicon carbide flame shields 3 form a reaction channel 4 with the top and bottom of the furnace body 1. The flame plate 3 forms a preheating channel 5 with the top, side and bottom of the kiln body 1, and the preheating channel 5 of the kiln body 1 corresponding to the first preheating section communicates with the two smoke exhaust channels 2, corresponding to the first The kiln body...

Embodiment 2

[0038] Embodiment 2, as attached figure 1 , 2 As shown in , 3, the vanadium-nitrogen alloy device using the double-push plate kiln of flame-trap gas energy-saving includes a kiln body 1 and a drying kiln 23; a row of rolling rods 24 are arranged in the middle of the cavity of the drying kiln 23 along the axial direction, and the rolling rods The two ends of 24 are installed on the side wall of the drying kiln 23 through the shaft, and the upper part of the drying kiln 23 is distributed with the dehumidification end connected with the cavity of the drying kiln 23 along the axial direction, and the bottom of the drying kiln 23 is arranged along the axial direction. Distributed with the flue gas inlet end connected with the cavity of the drying kiln 23, the smoke collecting pipe 25 with both ends blinded is fixedly installed on the outside of the drying kiln 23, the smoke collecting pipe 25 and the exhaust pipe of the kiln body 1 The smoke end is fixedly connected together throu...

Embodiment 3

[0043] Embodiment 3, as attached figure 1 , 10 As shown, the preparation method of the vanadium-nitrogen alloy is carried out according to the following steps: the first step, adding vanadium pentoxide and graphite in the ball mill successively to grind and homogenize, and obtain the mixture after grinding and homogenizing; in the second step, the mixture Add the spray mixer for spraying and stirring, after spraying and stirring, send it to the ball press machine for pressing, and get green balls after pressing; the third step is to pass gas through the gas branch pipe 7 to the burner 6, and through the combustion air branch pipe 8 to The combustion-supporting gas is fed into the burner 6, and the burner 6 is ignited to heat the high-temperature section of the kiln body 1. At the same time, nitrogen gas is passed into the furnace body 1 through the nitrogen main pipe 31 and the nitrogen branch pipe 32, and the flue gas after combustion passes through the furnace in turn. The ...

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Abstract

The invention relates to the technical field of vanadium-nitrogen alloy, and provides a flame-proof gas energy-saving double-push-plate kiln, a vanadium-nitrogen alloy device and a preparation method. The flame-proof gas energy-saving double-push-plate kiln comprises a kiln body. Installation holes are distributed in the front side of the upper portion of the high-temperature section of the kiln body in the axial direction. Installation holes are distributed in the rear side of the upper portion of the high-temperature section of the kiln body in the axial direction. Burners are fixedly installed at the installation holes. The gas outlet ends of the burners are located in preheating passageways located at the corresponding portions of the high-temperature section of the kiln body. A gas branch pipe and a combustion-supporting air branch pipe are fixedly installed at the gas inlet end of each burner. By means of the flame-proof gas energy-saving double-push-plate kiln, vanadium-nitrogen alloy is produced through a heat source in a gas heating mode instead of a traditional silicon-molybdenum rod electric heating mode, the first preheating section of the kiln body, the second preheating section of the kiln body and a drying kiln are preheated by smoke generated through gas heating, smoke is sufficiently recycled, the production cost is greatly reduced, kiln blockage accidents are eradicated, the overhaul period and the service life of the kiln body are greatly prolonged, environment pollution is reduced, and the work efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of vanadium-nitrogen alloys, and relates to a flame-trap gas-fired energy-saving double-push plate furnace, a vanadium-nitrogen alloy device and a preparation method. Background technique [0002] Vanadium-nitrogen alloy is vanadium nitride. Vanadium-nitrogen alloy is a new type of alloy additive that can replace ferro-vanadium for alloyed steel production. The addition of vanadium nitride to steel can improve the comprehensive mechanical properties of steel such as strength, toughness, ductility and thermal fatigue resistance, and make the steel have good weldability. When the same strength is achieved, the addition of vanadium-nitrogen alloy can save 30% to 40% of the vanadium addition, thereby reducing the cost. [0003] At present, there are 32 domestic vanadium nitrogen alloy production enterprises. Among them, Panzhihua Iron and Steel Group produces 4,000 tons of vanadium-nitrogen alloys annually; He...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/02F27B9/12F27B9/30F27B9/34F27B9/36
CPCF27B9/02F27B9/12F27B9/30F27B9/34F27B9/36F27B2009/122
Inventor 刘新刚高建民张生俊
Owner XINJIANG GUIZHI REFRACTORIES CO LTD
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