CN205205170U

CN205205170U - Electric arc furnace is used in steelmaking

Info

Publication number: CN205205170U
Application number: CN201521075550.6U
Authority: CN
Inventors: 王重鑫
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-21
Filing date: 2015-12-21
Publication date: 2016-05-04
Anticipated expiration: 2025-12-21

Abstract

The utility model discloses an electric arc furnace is used in steelmaking, including casing, base and bell, the bottom of casing sets up to the hemisphere, outside the bottom of casing fixed surface be provided with with bottom matched with half gear the base upper surface is provided with matched with arc recess bottom the casing, installs two sets of gears in the arc recess, the casing comprises insulating brick layer, flame retardant coating and heat -conducting layer, and outside -in sets gradually, the bell is installed at the top of casing, has inserted a plurality of electrode on the bell, is provided with the ascending heat conduction post of the vertical side of a plurality of in the casing, and the heat conduction post is by the resistant firebrick of inside and the graphite layer in the outside. The utility model discloses a heat -conducting layer of heat conduction post and casing internal surface makes heat transfer to bottom, guarantees that the iron of bottom also can heat rapidly, improves production efficiency, and the motor drives gear revolve, makes the casing slope, and simple structure, the unloading of being convenient for, safe and reliable are poured out from the discharge gate to the iron after will melting.

Description

A kind of steel-making arc stove

Technical field

The utility model relates to a kind of electric arc furnace, specifically a kind of steel-making arc stove.

Background technology

Electric arc furnace is mainly after being encased in stove by solid metal raw material, electrode insertion is energized, thus utilize electric arc to carry out the equipment of melting solid raw metal, when the steel electric arc furnace processed as typical electric arc furnace, have employed iron filings, direct-reduced iron as raw material and at high temperature the hot wafering iron, pig iron ingot pig etc. that briquetting obtains carried out to above-mentioned materials.For smelting metal, electric arc furnace is larger than other steel melting furnace technological flexibilities, and effectively can remove the impurity such as desulfuration, phosphorus, furnace temperature easily controls, and occupation area of equipment is little, is suitable for the melting of superior alloy steel.Along with the improvement of arc furnace equipment and the raising of smelting technology, the development of power industry, the cost of electric-arc furnace steelmaking constantly declines.Electric arc furnace can be divided into the types such as three-phawse arc furnace, consumable electroarc furnace, single-phase arc funace and resistor electric arc stove by electrical arc.Current electric arc furnace is used for producing general carbon steel in a large number.Existing steel-making arc stove existence is not easy to discharging, and the baroque problem of shedding mechanism; Another fermentation, because internal temperature is higher, is difficult to add stirring mechanism, the iron after inner fusing is heated evenly, often needs the whole irony of good temperature guarantee to be heated.

Utility model content

It is simple that the purpose of this utility model is to provide a kind of structure, and be convenient to blanking, safe and reliable, the steel-making arc stove of enhancing productivity, to solve the problem proposed in above-mentioned background technology.

For achieving the above object, the utility model provides following technical scheme:

A kind of steel-making arc stove, comprises housing, base and bell; The bottom of described housing is set to semisphere, half gear matched with bottom is fixedly installed at the bottom outer surface of housing, the arc groove matched with housing bottom is provided with at described base upper surface, two groups of gears are installed in arc groove, gear engages each other with half gear and is connected, and gear is fixedly mounted on the output shaft of motor; Described housing is made up of insulating brick-layer, flame retardant coating and heat-conducting layer, and ecto-entad sets gradually, and the material of heat-conducting layer is graphite; The upper portion side wall of described housing is provided with opening for feed, and the bottom in housing offers discharge port, and discharge port is inclined upwardly, and which is provided with sealing cover; The top of described housing is provided with bell, bell is inserted with several electrodes, is provided with the heating column on several vertical directions in housing, and the lower end of heating column is fixed on the bottom of housing, the refractory brick of heating column by inside and the graphite linings in outside.

Further: the thickness of described flame retardant coating is 20 ~ 30mm, the thickness of heat-conducting layer is 3 ~ 5mm.

Further: the cross section of described heating column is circular or square, is highly 1/3 ~ 1/2 of body height.

Further: the thickness of described graphite linings is 2 ~ 3mm.

Compared with prior art, the beneficial effects of the utility model are: the utility model makes heat be delivered to bottom by the heat-conducting layer of heating column and shell inner surface, ensure that the irony of bottom also can heat rapidly, enhance productivity, after in stove, material dissolves completely, starter motor, open discharge port simultaneously, motor driven gear rotates, thus drive half pinion rotation, housing is tilted, irony after fusing is poured out from discharge port, then starter motor is continued after end, gear is overturn, housing is returned to vertical position, structure is simple, be convenient to blanking, safe and reliable.

Accompanying drawing explanation

Fig. 1 is a kind of structural representation of steel-making arc stove.

Fig. 2 is a kind of inside top structural representation of steel-making arc stove.

Fig. 3 is the structural representation of heating column in a kind of steel-making arc stove.

In figure: 1-housing, 2-base, 3-half gear, 4-gear, 5-arc groove, 6-electrode, 7-bell, 8-opening for feed, 9-heating column, 91-refractory brick, 92-graphite linings, 10-discharge port, 11-insulating brick-layer, 12-flame retardant coating, 13-heat-conducting layer.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to figure, in the utility model embodiment, a kind of steel-making arc stove, comprises housing 1, base 2 and bell 7; The bottom of described housing 1 is set to semisphere, half gear 3 matched with bottom is fixedly installed at the bottom outer surface of housing 1, be provided with and the arc groove 5 matched bottom housing 1 at described base 2 upper surface, housing 1 is made to be positioned at arc groove 5 on base 2, in arc groove 5, be provided with two groups of gears 4, gear 4 engages each other with half gear 3 and is connected, and gear 4 is fixedly mounted on the output shaft of motor, rotated by motor driven gear 4, thus realize the inclination of housing 1; Described housing 1 is made up of insulating brick-layer 11, flame retardant coating 12 and heat-conducting layer 13, and ecto-entad sets gradually, the thickness of flame retardant coating 12 is 20 ~ 30mm, the material of heat-conducting layer 13 is graphite, its thickness is 3 ~ 5mm, make housing 1 have good heat retaining property and thermal conductivity, be convenient to top heat is delivered to bottom; The upper portion side wall of described housing 1 is provided with opening for feed 8, and the bottom in housing 1 offers discharge port 10, and discharge port 10 is inclined upwardly, and which is provided with sealing cover; The top of described housing 1 is provided with bell 7, bell 7 is inserted with several electrodes 6, the heating column 9 on several vertical directions is provided with in housing 1, the lower end of heating column 9 is fixed on the bottom of housing 1, the cross section of heating column 9 is circular or square, and the height of heating column 9 is 1/3 ~ 1/2 of housing 1 height, the refractory brick 91 of heating column 9 by inside and the graphite linings 92 in outside, the thickness of graphite linings 92 is 2 ~ 3mm, by heating column 9, the heat of top is delivered to bottom rapidly.

During use, ferrous material is put in housing 1 from opening for feed 8, by electrode 6, inside is heated, in the process of heating, heat is made to be delivered to bottom by the heat-conducting layer 13 of heating column 9 and housing 1 internal surface, ensure that the irony of bottom also can heat rapidly, enhance productivity, after in stove, material dissolves completely, starter motor, open discharge port 10 simultaneously, motor driven gear 4 rotates, thus drive half gear 7 to rotate, housing 1 is tilted, irony after fusing is poured out from discharge port 10, then starter motor is continued after end, gear 4 is overturn, housing 1 is returned to vertical position, structure is simple, be convenient to blanking, safe and reliable.

To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this specification sheets is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of specification sheets is only for clarity sake, those skilled in the art should by specification sheets integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims

1. a steel-making arc stove, comprises housing (1), base (2) and bell (7); It is characterized in that: the bottom of described housing (1) is set to semisphere, half gear (3) matched with bottom is fixedly installed at the bottom outer surface of housing (1), the arc groove (5) matched with housing (1) bottom is provided with at described base (2) upper surface, two groups of gears (4) are installed in arc groove (5), gear (4) engages each other with half gear (3) and is connected, and gear (4) is fixedly mounted on the output shaft of motor; Described housing (1) is made up of insulating brick-layer (11), flame retardant coating (12) and heat-conducting layer (13), and ecto-entad sets gradually, and the material of heat-conducting layer (13) is graphite; The upper portion side wall of described housing (1) is provided with opening for feed (8), the bottom in housing (1) offers discharge port (10), and discharge port (10) is inclined upwardly, and which is provided with sealing cover; The top of described housing (1) is provided with bell (7), bell (7) is inserted with several electrodes (6), the heating column (9) on several vertical directions is provided with in housing (1), the lower end of heating column (9) is fixed on the bottom of housing (1), the refractory brick (91) of heating column (9) by inside and the graphite linings (92) in outside.

2. a kind of steel-making arc stove according to claim 1, is characterized in that: the thickness of described flame retardant coating (12) is 20 ~ 30mm, and the thickness of heat-conducting layer (13) is 3 ~ 5mm.

3. a kind of steel-making arc stove according to claim 1, is characterized in that: the cross section of described heating column (9), for circular or square, is highly 1/3 ~ 1/2 of housing (1) height.

4. a kind of steel-making arc stove according to claim 1, is characterized in that: the thickness of described graphite linings (92) is 2 ~ 3mm.