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Drying method of raw material blank in continuous production of vanadium nitride and its device

A technology of production process and drying method, applied in chemical instruments and methods, lead oxide, vanadium compounds, etc., can solve problems such as the influence of the service life of the main sintering furnace and the large water content of the raw material blank, so as to reduce the number of charging backwards and simplify the equipment. , the effect of improving the recovery rate of vanadium

Active Publication Date: 2008-11-26
PANZHIHUA IRON AND STEEL
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Problems solved by technology

[0003] In order to overcome the deficiency that the service life of the main sintering furnace has a relatively large impact due to the relatively large water content of the raw material in the process of producing vanadium nitride by using the continuous production method of vanadium nitride, the technical problem to be solved by the present invention It is to provide a method and device for drying raw material blanks in the continuous production process of vanadium nitride, which can ensure that the water content of the raw material blanks entering the main sintering furnace is low, thereby improving the service life of the main sintering furnace

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  • Drying method of raw material blank in continuous production of vanadium nitride and its device

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Embodiment 1

[0016] Embodiment 1: The drying method and device for the raw material billet in the continuous production process of vanadium nitride of the present invention is that the auxiliary electric heating furnace 1 is arranged in parallel on the side of the main sintering furnace 2, and the auxiliary electric heating furnace 1 is arranged between the main sintering furnace 2 There is a fully enclosed sealed channel 3 to communicate with each other, the center line of the auxiliary electric furnace 1 coincides with the automatic return center line of the main sintering furnace 2, and the main push cylinder of the auxiliary electric furnace 1 uses the return push cylinder 9 of the main sintering furnace 2, Two sealed gates 4 are arranged between the auxiliary electric heating furnace 1 and the main sintering furnace 2 to block the gas flow between the auxiliary electric heating furnace 1 and the main sintering furnace 2 . The gas inlet 5 is arranged at the outlet end of the auxiliary e...

Embodiment 2

[0018] Embodiment 2: The method and device for drying raw material blanks in the continuous production process of vanadium nitride of the present invention is to arrange an auxiliary electric heating furnace 1 in parallel on the side of the main sintering furnace 2, and arrange between the auxiliary electric heating furnace 1 and the main sintering furnace 2 There is a fully enclosed sealed channel 3 to communicate with each other, the center line of the auxiliary electric furnace 1 coincides with the automatic return center line of the main sintering furnace 2, and the main push cylinder of the auxiliary electric furnace 1 uses the return push cylinder 9 of the main sintering furnace 2, Two sealed gates 4 are arranged between the auxiliary electric heating furnace 1 and the main sintering furnace 2 to block the gas flow between the auxiliary electric heating furnace 1 and the main sintering furnace 2 . The gas inlet 5 is arranged at the outlet end of the auxiliary electric fur...

Embodiment 3

[0020]Embodiment 3: The method and device for drying raw material blanks in the continuous production process of vanadium nitride of the present invention is to arrange an auxiliary electric heating furnace 1 in parallel on the side of the main sintering furnace 2, and arrange between the auxiliary electric heating furnace 1 and the main sintering furnace 2 There is a fully enclosed sealed channel 3 to communicate with each other, the center line of the auxiliary electric furnace 1 coincides with the automatic return center line of the main sintering furnace 2, and the main push cylinder of the auxiliary electric furnace 1 uses the return push cylinder 9 of the main sintering furnace 2, Two sealed gates 4 are arranged between the auxiliary electric heating furnace 1 and the main sintering furnace 2 to block the gas flow between the auxiliary electric heating furnace 1 and the main sintering furnace 2 . The gas inlet 5 is arranged at the outlet end of the auxiliary electric furn...

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Abstract

A process and apparatus for drying the raw material blanks in the continuous production of vanadium nitride is disclosed. The raw material blanks are fed in a sealed electric furnace communicated via a sealed channel and a valve to a sintering furnace while protective gas is filled in it. After they are dried at 400-700 deg.C for 4-7 hr, they are transferred via said sealed channel into sintering furnace.

Description

technical field [0001] The invention relates to a method and device for pre-drying charge used in the production process of vanadium nitride, in particular to a method and device for drying raw blanks in the continuous production process of vanadium nitride. Background technique [0002] At present, in the existing methods for producing vanadium nitride in China, there is no mention of the pre-drying treatment of the charge. The common practice abroad is to build a separate furnace to dry the charge. This drying method can meet the requirements of US patents US3334992, US4040814, Process requirements described in US3745209, US4562057. In the process of implementing the "Production Method of Vanadium Nitride" with application number 01139886.8 and publication number 1422800, the continuous production of vanadium nitride can be used to shorten the production cycle, make full use of energy, greatly improve production efficiency and reduce manufacturing cost. However, in the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G21/06C01G31/00
Inventor 孙朝晖周家琮朱胜友张帆张国才谢屯良
Owner PANZHIHUA IRON AND STEEL