CN203785416U - Drying equipment for vanadium-nitrogen alloy raw material pellets - Google Patents

Drying equipment for vanadium-nitrogen alloy raw material pellets Download PDF

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Publication number
CN203785416U
CN203785416U CN201420127450.2U CN201420127450U CN203785416U CN 203785416 U CN203785416 U CN 203785416U CN 201420127450 U CN201420127450 U CN 201420127450U CN 203785416 U CN203785416 U CN 203785416U
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China
Prior art keywords
drying
raw material
vanadium
air
chamber
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CN201420127450.2U
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Chinese (zh)
Inventor
白瑞国
马瑞峰
卢明亮
田文祥
张振洋
高洋
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Hebei Iron and Steel Co Ltd
Hebei Iron and Steel Group Co Ltd Chengde Branch
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Hebei Iron and Steel Group Co Ltd Chengde Branch
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The utility model relates to drying equipment for vanadium-nitrogen alloy raw material pellets, and belongs to the technical field of drying. According to the technical scheme, the drying equipment comprises a combustion chamber, a burner nozzle, a drying chamber, a circulating fan and a chimney; a hot air nozzle and an air draft exhaust port are respectively formed in two side walls, parallel to each other, of the drying chamber; a high-temperature gas outlet of the combustion chamber is connected to the hot air nozzle of the drying chamber; an air inlet of the circulating fan is connected to the air draft exhaust port of the drying chamber, and an air outlet of the circulating fan is connected with a circulating air inlet of the combustion chamber through a mixed hot-gas circulating pipeline; a flue gas inlet of the chimney is connected to the mixed hot-gas circulating pipeline; the burner nozzle is mounted on the side wall of the combustion chamber and is connected with a coal gas pipeline and a combustion fan outside the combustion chamber. Heat emitted by combustion of coal gas is utilized for drying the vanadium-nitrogen alloy raw material pellets, and the drying equipment is high in heating speed and low in energy consumption compared with a traditional electric heating device; hot air is circulated at the interior of the system, so that waste heat is fully recycled and utilized, and the energy consumption is further reduced.

Description

A kind of vanadium-nitrogen alloy raw material ball drying plant
Technical field
The utility model relates to and a kind ofly in VN alloy production process, using, and for the equipment of drying material ball, belongs to technical field of drying.
Background technology
VN alloy is the same with vanadium iron, is important vanadium alloy additive.VN alloy is conventionally with vanadium trioxide/vanadic anhydride/NH 4vO 3, carbon dust, additive be raw material, by batch mixing, pressure ball, oven dry, then in pushed bat kiln (or shaft furnace), form through reduction, nitrogenize, sintering.
Vanadium-nitrogen alloy raw material ball must add the moulding of water ability in pressing process, entering before kiln and must drying, could reduce to greatest extent the corrosion of water to furnace lining material in kiln chamber in raw material ball, effectively enhances productivity.At present, vanadium-nitrogen alloy raw material ball generally adopts electric calorifie installation to dry, and electric calorifie installation not only firing rate is slow, energy consumption is high, and heat transmits by radiation mode, raw material ball temperature distributing disproportionation is even, portion temperature near electroheat member is higher, and vanadium-nitrogen alloy raw material ball is easily oxidized, and lower away from the portion temperature of electroheat member, vanadium-nitrogen alloy raw material ball can not thoroughly be dried, and is therefore necessary to be improved.
Utility model content
The purpose of this utility model is the drawback for prior art, and a kind of vanadium-nitrogen alloy raw material ball drying plant is provided, and to improve the drying efficiency of vanadium-nitrogen alloy raw material ball, reduces energy resource consumption.
Problem described in the utility model realizes with following technical proposals:
A kind of vanadium-nitrogen alloy raw material ball drying plant, formation comprises combustion chamber, burner, drying chamber, circulating fan and chimney, on two sidewalls that are parallel to each other of described drying chamber, be respectively arranged with hot air spout and air draught exhaust outlet, the high-temperature gas outlet of described combustion chamber connects the hot air spout of drying chamber, the air inlet of described circulating fan connects the air draught exhaust outlet of drying chamber, gas outlet is connected with the circulated air entrance of combustion chamber through mixing hot gas circulation line, the smoke inlet of described chimney connects and mixes hot gas circulation line, described burner is arranged on the sidewall of combustion chamber and is connected with gaspipe line and the combustion fan of outside, combustion chamber.
Above-mentioned vanadium-nitrogen alloy raw material ball drying plant, the hot air spout of described drying chamber and air draught exhaust outlet all arrange multiple, and they are evenly arranged on the sidewall of drying chamber, and described hot air spout is flat seam shape.
Above-mentioned vanadium-nitrogen alloy raw material ball drying plant, the chimney interface place of described mixing hot gas circulation line is provided with flue damper plate valve.
Above-mentioned vanadium-nitrogen alloy raw material ball drying plant, is provided with combustion air control valve on the air pipe line between described burner and combustion fan.
Above-mentioned vanadium-nitrogen alloy raw material ball drying plant is all provided with thermocouple before each hot air spout, and the signal output part of described thermocouple connects device controller.
The beneficial effects of the utility model are:
One, utilize gas-fired liberated heat to dry vanadium-nitrogen alloy raw material ball, faster than traditional electric calorifie installation firing rate, energy consumption is low, hot blast circulates in internal system, makes waste heat fully be reclaimed and utilize, and has further reduced energy resource consumption;
Two, adopt high-speed low temperature airflow drying raw material ball, Temperature Distribution is more even, can ensure that raw material ball evenly dries, and reduces raw material ball crack, improves the quality of products, and is applicable to large-scale industrial production.
Brief description of the drawings
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is A-A profile;
Fig. 3 is top view of the present utility model.
In figure, each label is: 1, combustion chamber, 2, burner, 3, gaspipe line, 4, air pipe line, 5, combustion fan, 6, mix hot gas circulation line, 7, circulating fan, 8, hot air spout, 9, drying chamber, 10, thermocouple, 11, combustion air control valve, 12, air draught exhaust outlet, 13, chimney, 14, flue damper plate valve, 15, circulated air entrance.
Detailed description of the invention
The utility model uses coal gas to use raw material ball to carry out low temperature drying to producing VN alloy, and this equipment mainly comprises: combustion chamber 1, drying chamber 9, circulating fan 7, and structure and the Main Function of each several part are as follows:
Combustion chamber 1: burning coal gas produces heat, and heat enters drying chamber with circulated air vanadium-nitrogen alloy raw material ball is dried.
Drying chamber 9: have some hot air spouts 8 in drying chamber, the even branch of hot air spout 8 is on the sidewall of drying chamber 9, for increasing the egress rate of thermal current, hot air spout 8 is designed to flat seam shape, is provided with the air draught exhaust outlet 12 corresponding with each heat-sealing spout 8 on another sidewall of drying chamber 9.
One group of thermocouple 10 is all installed each hot air spout 8 is front, the furnace temperature signal of thermocouple collection is delivered to PLC, PLC compares this signal with setting value, after PID calculates, regulate combustion air volume by combustion air control valve 11, according to the change of combustion air volume and air/fuel gas ratio, the flow of the automatic regulating gas of system, control enters the temperature (0-230 DEG C) of hot gas in stove, meets the temperature needs of drying oven.
Circulating fan 7: the air draught exhaust outlet 12 of drying chamber 9 is connected with circulating fan 7 by pipeline is allocated appropriate high speed cold air into simultaneously, after fully mixing completely, enters in stove and mixes in circulated air.Mix the interior part high temperature hot gas of hot gas circulation line 6 discharges by chimney 13 simultaneously, chimney 13 with mix hot gas circulation line 6 junctions flue damper plate valve 14 be installed, can regulate according to the water content of high temperature hot gas the aperture of flue damper plate valve 14, adjust high temperature hot gas discharge rate.
The low-temperature circulating wind that is entered combustion chamber 1 by circulated air entrance 15 can reduce hot blast temperature (60-240 DEG C), and improves the air quantity leading in drying chamber 9.High speed hot blast enters drying chamber 9 by hot air spout 8, and air draught exhaust outlet 12 is extracted the hot blast after reduction of speed out drying chamber 9, keeps the interior high-temperature gas circulation of drying chamber 9.
The coal gas burning in combustion chamber 1 comprises the fuel gas such as blast furnace gas, coal gas of converter, coke-stove gas, mixed gas, natural gas.

Claims (5)

1. a vanadium-nitrogen alloy raw material ball drying plant, it is characterized in that, it comprises combustion chamber (1), burner (2), drying chamber (9), circulating fan (7) and chimney (13), on two sidewalls that are parallel to each other of described drying chamber (9), be respectively arranged with hot air spout (8) and air draught exhaust outlet (12), the high-temperature gas outlet of described combustion chamber (1) connects the hot air spout (8) of drying chamber (9), the air inlet of described circulating fan (7) connects the air draught exhaust outlet (12) of drying chamber (9), gas outlet is connected with the circulated air entrance (15) of combustion chamber (1) through mixing hot gas circulation line (6), the smoke inlet of described chimney (13) connects and mixes hot gas circulation line (6), described burner (2) is arranged on the sidewall of combustion chamber (1) and gaspipe line (3) and the combustion fan (5) outside with combustion chamber (1) are connected.
2. a kind of vanadium-nitrogen alloy raw material ball drying plant according to claim 1, it is characterized in that, the hot air spout (8) of described drying chamber (9) and air draught exhaust outlet (12) all arrange multiple, and they are evenly arranged on the sidewall of drying chamber (9), and described hot air spout (8) is flat seam shape.
3. a kind of vanadium-nitrogen alloy raw material ball drying plant according to claim 1 and 2, is characterized in that, the chimney interface place of described mixing hot gas circulation line (6) is provided with flue damper plate valve (14).
4. a kind of vanadium-nitrogen alloy raw material ball drying plant according to claim 3, is characterized in that, on the air pipe line (4) between described burner (2) and combustion fan (5), is provided with combustion air control valve (11).
5. a kind of vanadium-nitrogen alloy raw material ball drying plant according to claim 4, is characterized in that, at the front thermocouple (10) that is all provided with of each hot air spout (8), the signal output part of described thermocouple (10) connects device controller.
CN201420127450.2U 2014-03-20 2014-03-20 Drying equipment for vanadium-nitrogen alloy raw material pellets Active CN203785416U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420127450.2U CN203785416U (en) 2014-03-20 2014-03-20 Drying equipment for vanadium-nitrogen alloy raw material pellets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420127450.2U CN203785416U (en) 2014-03-20 2014-03-20 Drying equipment for vanadium-nitrogen alloy raw material pellets

Publications (1)

Publication Number Publication Date
CN203785416U true CN203785416U (en) 2014-08-20

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CN201420127450.2U Active CN203785416U (en) 2014-03-20 2014-03-20 Drying equipment for vanadium-nitrogen alloy raw material pellets

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109097667A (en) * 2018-08-06 2018-12-28 宁夏源冶盛工贸有限公司 A kind of production equipment and its technique of metavanadic acid ammonia production vanadium iron

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109097667A (en) * 2018-08-06 2018-12-28 宁夏源冶盛工贸有限公司 A kind of production equipment and its technique of metavanadic acid ammonia production vanadium iron
CN109097667B (en) * 2018-08-06 2020-08-18 宁夏源冶盛工贸有限公司 Production equipment and process for producing ferrovanadium from ammonium metavanadate

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