CN201334495Y

CN201334495Y - Novel steelmaking process auxiliary feeding device

Info

Publication number: CN201334495Y
Application number: CNU2008202208112U
Authority: CN
Inventors: 刘振辉; 刘世凯
Original assignee: XINXIANG QIANGDA VIBRATING MACHINE CO Ltd
Current assignee: XINXIANG QIANGDA VIBRATING MACHINE CO Ltd
Priority date: 2008-11-01
Filing date: 2008-11-01
Publication date: 2009-10-28
Anticipated expiration: 2018-11-01

Abstract

The utility model discloses a novel steelmaking process auxiliary feeding device to match an ultra-high power electric arc steel-smelting furnace. A water cooling silo (15) positioned in front of an electric arc furnace (1) is installed on a supporting pallet (16), a silo (12) is supported through a lower bracket (13) and is inserted in the water cooling silo (15) in front of the electric arc furnace, a material heating channel (4) is arranged at the upper part of the silo (12) and connected with a high temperature flue gas channel (5), a conveying trough (7) is connected with the silo (12) and driven by a main power source (3) positioned behind the conveying trough (7), an exhaust fan (8) and a hydraulic device (9) are arranged above the silo (12) between the main power source (3) and the high temperature flue gas channel (5), and a water cooling device (10) is arranged in the water cooling positions of the water cooling silo (15) and the silo (12). Due to the design of the transportation process from preheating to continuous feeding, waste-heat recovery, fully-closed flue gas purification continuous steelmaking, the utility model has the advantages of reduced energy consumption, improved efficiency, shortened smelting period and reduced environmental pollution.

Description

Novel process for making is assisted feeding device

Technical field:

The utility model relates to the auxiliary feeding device of the matching used novel process for making of a kind of ultra high power steelmaking arc furnace.

Background technology:

In present industrial production, pursuit high yield, high-quality, low consumption are our inevitable targets.In the smelting technology of special steel and high-quality steel, electric arc furnace smelting occupies sizable ratio, though the economic and technical norms of the present Electric furnace steel making of China are suitable with international most advanced level, if but weigh according to the standard of whole employing cold charge furnace charges, the technico-economical comparison of China's Electric furnace steel making also holds pessimistic, do not reach advanced world standards as yet, its subject matter is that comprehensive energy consumption is higher, smelting efficient is lower, environmental pollution is more serious.The material primary heater unit of using for electric-arc furnace steelmaking mainly contains two kinds of forms, it is vertical and horizontal, vertical heat exchange efficiency is higher, the material preheating temperature is higher, but factory building also has higher requirement and big, the disposable throwing of equipment volume time very high, can not be applicable to the transformation in electric arc furnace workshop and the popularization of new construction well.

That propose Electric furnace steel making feeding in continuous material device at first is the consteel of De Xing company, but many problems all occurred in the production line of being introduced at home, its main drawback is that the oversize and complex structure of length, material preheating temperature are low, contain the very high and equipment after sale service of harmful gas, one-time investment in the exhaust gas discharged is difficult for carrying out.

The utility model content:

The utility model has overcome the shortcoming of preheating feeding system in the existing process for making, and a kind of auxiliary feeding device of novel process for making that is suitable for newly-built and transformation project efficiently is provided.Its offside at electric arc furnace 1 transformer is provided with the auxiliary charging equipment 2 of a cover electric arc furnace, and be connected with water cooling plant 10 and electrical control system 11, being positioned at electric arc furnace 1 preceding water cooling hopper 15 is installed on the support chassis 16, hopper 12 supports and inserts the water cooling hopper 15 of stokehold by lower tray 13, lower tray 13 is installed on the hanging beam 14, material heated passage 4 places hopper 12 tops and is interconnected to constitute electric arc furnace the 4th hole discharge flue with high-temperature flue gas passage 5, conveyer trough 7 is connected and is positioned at the driving of the main power source 3 at its rear portion with hopper 12, vacuum fan 8, hydraulic efficiency plant 9 devices are directly over the hopper 12 between main power source 3 and the high-temperature flue gas passage 5, and water cooling plant 10 devices are at water cooling hopper 15, hopper 12 water-cooled positions.Because the utility model has designed a kind of from being preheating to the delivery technology of continuous-feeding, waste heat recovery, totally-enclosed gas cleaning continuous steelmaking.Cut down the consumption of energy, raise the efficiency, shorten smelting cycle, reduced environmental pollution.

Description of drawings:

Fig. 1 is the utility model main structure body synoptic diagram.

Fig. 2 is that the A-A of Fig. 1 is to sectional view

Fig. 3 is that the B-B of Fig. 1 is to sectional view

Fig. 4 is that the C-C of Fig. 1 is to sectional view

Fig. 5 is that the D-D of Fig. 1 is to sectional view

Fig. 6 is the front view of the utility model main power source

Fig. 7 is the vertical view of Fig. 6

Fig. 8 is the front view that the utility model supports chassis and secondary propulsion source

Fig. 9 is the left view of Fig. 8

Figure 10 is the front view of the utility model hanging beam and supporting leg thereof

The left view of Figure 10 during Figure 11

Figure 12 is in the B-B sectional view

The partial enlarged drawing of position

Figure 13 is the front view of the utility model horizontal linear vibration source

Figure 14 is that the E-E of Figure 13 is to view

In Figure 15 C-C sectional view

The partial enlarged drawing of position

Embodiment:

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, at the offside of electric arc furnace 1 transformer the auxiliary charging equipment 2 of one cover electric arc furnace is set, and with water cooling plant 10 and be used to control and the electrical control system 11 of the normal operation of monitoring equipment is connected.The front end of material heated passage 4 (near the electric arc furnace direction) bottom is equipped with softening water refrigerative hopper 12 and with lower tray 13 to be supported, carriage 13 is installed on the hanging beam 14, the water cooling hopper 15 that is positioned at the electric arc furnace stokehold is installed on the support chassis 16 of vibrating function, support chassis 16 has four wheels and can move forward and backward at the effect lower edge of hydraulic efficiency system hopper length direction, main power source 3 is positioned to add behind the feed bin 6 and with hopper and interconnects, add feed bin 6 and be positioned at material heated passage 4 rear portions, can insert the water cooling hopper 15 of stokehold with softening water refrigerative hopper 12 by lower tray 13 supports and near stokehold one end, lower tray 13 is installed on the hanging beam 14, material heated passage 4 is positioned at hopper 12 tops and is interconnected to constitute electric arc furnace the 4th hole discharge flue with high-temperature flue gas passage 5, and its internal refractory brick decline of flue gas flue-gas temperature effectively, conveyer trough 7 connects and is positioned at the driving of the main power source 3 at its rear portion with hopper 12, vacuum fan 8, hydraulic efficiency plant 9 is directly over the hopper 12 between main power source 3 and the high-temperature flue gas passage 5, hydraulic efficiency plant 9 is respectively applied for the control pressure head and supports moving of chassis, and water cooling plant 10 is distributed in water cooling hopper 15, hopper 12 grades need be used water-cooled position.

As Fig. 6, Fig. 7, Figure 13, shown in Figure 14, main power source 3 is by electric motor 18, belt 19, horizontal linear vibration source 20 and fore-stock and web plate 21, after poppet and web plate 22, and horizontal linear vibration source 20 is made up of casing 21, belt pulley 22, main drive shaft 23, first driven axle 24, second driven axle 25, the 3rd driven axle 26 and master wheel 27, pinion(gear) 28; Belt pulley, gear realize and the connecting of axle by the swelling cover, spool the Support Position be positioned on the casing 21; Electric motor 18 is installed on after poppet and the web plate 22.

As Fig. 8, shown in Figure 9, supporting chassis 16 is made up of secondary propulsion source 17, electric motor 29, erecting by overhang 30 and bogie frame 31, electric motor 29 is installed on the sidepiece concave panel middle part of secondary propulsion source 17, and secondary propulsion source 17 is installed on the bogie frame 31 and can moves with bogie frame; Secondary propulsion source 17 has the structure identical with horizontal linear vibration source 20.

As Figure 10, shown in Figure 11, hanging beam 14 is suspended on the supporting leg 18 by erecting by overhang 32, and erecting by overhang is made up of suspension rod, nut, convex-concave cushion block, and hanging beam 14 can be swung in supporting leg 18.

As Figure 12, shown in Figure 15, adopt L shaped sealing member 33 to seal with water cooling hopper 15, the steel structure platform of softening water refrigerative hopper 12 and electric arc furnace stokehold, hopper 12 and steel structure platform adopt L shaped sealing member 34 to seal.

When operation is reinforced, water cooling hopper in stokehold moves to electric arc furnace under hydraulic action with the support chassis, hopper is entered in the electric arc furnace also by electrical control system Vibration on Start-up function, in adding feed bin, add material then, open the vibrating function of conveyer trough, conveyer trough produces under the effect of main power source and makes the proal reactive force of material, material begins to move to heated passage from adding feed bin along conveyer trough, up to being heated continuously and sending in the electric arc furnace, finish the continuous heating and the conveying of material, reinforced stokehold, the back water-cooled hopper that finishes withdraws from from electric arc furnace under the effect of supporting chassis, has finished reinforced process.In mass transport, flue gas flows fast and has guaranteed the negative pressure of electric arc furnace fire door in the high-temperature flue gas passage, be connected with the high pressure softening water in the water cooling plant and guaranteed the normal cooling of each high temperature position, the guarantee of work of vacuum fan material can not cause in a large number when entering heated passage and leak out from adding feed bin, thereby improved intrinsic temperature when material is gone into stove.

Claims

1, a kind of novel process for making is assisted feeding device, the offside that it is included in electric arc furnace (1) transformer is provided with the auxiliary charging equipment (2) of a cover electric arc furnace, and be connected with water cooling plant (10) and electrical control system (11), it is characterized in that being positioned at the preceding water cooling hopper (15) of electric arc furnace (1) is installed on the support chassis (16), hopper (12) is supported and is inserted the water cooling hopper (15) of stokehold by lower tray (13), lower tray (13) is installed on the hanging beam (14), material heated passage (4) places hopper (12) top and is interconnected to constitute electric arc furnace the 4th hole discharge flue with high-temperature flue gas passage (5), conveyer trough (7) and hopper (12) are connected and are positioned at the driving of the main power source (3) at its rear portion, vacuum fan (8), hydraulic efficiency plant (9) device is directly over the hopper (12) between main power source (3) and the high-temperature flue gas passage (5), and water cooling plant (10) installs in water cooling hopper (15), the water-cooled position of hopper (12).

2, the auxiliary feeding device of novel process for making according to claim 1, it is characterized in that main power source (3) is made up of electric motor (18), belt (19), horizontal linear vibration source (20) and fore-stock and web plate (21), after poppet and web plate (22), electric motor (18) is installed on after poppet and the web plate (22).

3, the auxiliary feeding device of novel process for making according to claim 2, it is characterized in that horizontal linear vibration source (20) is made up of casing (21), belt pulley (22), main drive shaft (23), driven axle one (24), driven axle two (25), driven axle three (26) and master wheel (27), pinion(gear) (28), belt pulley, gear realize and the connecting of axle by the swelling cover, spool the Support Position be positioned on the casing (21).

4, the auxiliary feeding device of novel process for making according to claim 1, it is characterized in that supporting chassis (16) is made up of secondary propulsion source (17), electric motor (29), erecting by overhang (30) and bogie frame (31), electric motor (29) is installed on the sidepiece concave panel middle part of secondary propulsion source (17), and secondary propulsion source (17) is installed on the bogie frame (31) and can moves with bogie frame.

5, the auxiliary feeding device of novel process for making according to claim 4 is characterized in that secondary propulsion source (17) has and the identical structure of horizontal linear vibration source (20).

6, the auxiliary feeding device of novel process for making according to claim 1 is characterized in that hanging beam (14) is suspended on the supporting leg (18) by erecting by overhang (32), and erecting by overhang is made up of suspension rod, nut, convex-concave cushion block.

7, the auxiliary feeding device of novel process for making according to claim 1, it is characterized in that hopper (12) and water cooling hopper (15), steel structure platform adopt L shaped sealing member (33) to seal, hopper (12) and steel structure platform adopt L shaped sealing member (34) to seal.