CN2035453U

CN2035453U - Ore hearth

Info

Publication number: CN2035453U
Application number: CN 88209501
Authority: CN
Inventors: 沈中堂; 孟宪昌
Original assignee: HEAVY INDUSTRY BUREAU BAOJI CITY
Current assignee: HEAVY INDUSTRY BUREAU BAOJI CITY
Priority date: 1988-08-08
Filing date: 1988-08-08
Publication date: 1989-04-05

Abstract

The utility model discloses an ore hearth which is a special purpose furnace for smelting industries. The ore hearth is characterized in that an internal triangular conductive lead-in copper bar is changed into an external triangular conductive lead-in copper tube on the basis of a miniature ore hearth; a manual lower electrode or a hydraulic pressure lower electrode is changed into a mechanical lower electrode. Thus, the ore hearth not only raises power factors, but also ensures the stability of the furnace condition. Simultaneously, owing to the adoption of the mechanical lower electrode, the ore hearth has the advantages of strong self locking ability, safe operation, and strong clamping force; the ore hearth improves labor conditions, and reduces the furnace outage time.

Description

Ore hearth

The utility model belongs to the hot stove in ore deposit and makes the field.

Prior art in the utility model prior art field is: the present short net of the secondary of the hot stove in small-sized ore deposit that uses in the metallurgy industry and press down electrode and all adopt in the copper bar triangle inlet wire and manually transfer.Thereby the problem that exists is: power factor is low, operating rate is low, power consumption is high and production target is poor.

Purpose of design of the present utility model is: at the weak point of above-mentioned existence, designing a kind of short net is the outer triangle inlet wire of contact tube, and following discharge electrode is the hot stove in mechanical ore deposit.

Design of the present utility model is: 1, the hot stove in ore deposit by electric furnace basis, electric furnace, short net, riser, electric block, furnace shell square steel, down discharge electrode, control frame and transformer etc. and form.Its short net is as the easily section of splitting from the transformer to the fire door by contact tube, one end of contact tube is connected with transformer, the other end of contact tube then is connected with an end of soft bus by jumper wire board, terminal plate, copperhead, the other end of soft bus then is connected with electrode, be connected with cooling water in the contact tube, and according to the compensation bus principle make jumper wire board be designed to be staggered the sense of current, be outer triangle.Thereby realized that under the situation that does not add the electric capacity compensator, natural power factor can reach 0.96-0.98.2, the hot stove production in ore deposit influence is more greatly " wild phase " and the difference of " weakening mutually ", and with contact tube as the easy row section from the transformer to the fire door as a short design of netting, then reduced " wild phase " difference with " weakening mutually ", guarantee the relative stability of the working of a furnace, increased the daily output and stability.For the short-and-medium net of prior art each easily the welding of the section of splitting and each several part mechanical connection face ring the drawback of electric power transmission efficiency, the utility model is broken the method that adopts oxygen welding in the past, and get groove at solder side, carry out preheating, carry out the red copper electric welding then, thereby reduced the resistance of welding contact area, guaranteed that it runs well under the high particular job environment of temperature.3, in smelting process, the working end of electrode is constantly to consume.The device of transferring of electrode is exactly regular discharge electrode down, used up part is replenished, thereby keep the certain-length of electrode.But, there is not special electrode lowering mechanism on the hot stove in present small-sized ore deposit, great majority are with manually transferring, just transplant the hydraulic contracting formula that the hot stove of large ore adopted on individual other port and transfer device, but its investment cost height, maintenance maintenance trouble, and the following discharge electrode that the utility model adopts is a discharge electrode under the mechanical type, discharge electrode is fixed on the support under its mechanical type, support then is connected with long sleeve, be fixed on the lifting of discharge electrode under the mechanical type on the support then being controlled discharge electrode under its mechanical type by electronic hoister, discharge electrode is by transferring the electrode body case under the mechanical type, thrust bearing, sprocket wheel, nut, screw mandrel, the main tank lid, dust cover, flat key and reduction box are formed.Its thrust bearing lays respectively at down between discharge electrode main box and the nut, and between main tank lid and the nut, sprocket wheel is positioned on the nut, and screw mandrel is positioned at nut, and the worm gear of reduction box then meshes with screw mandrel.Its course of work is: when the worm gear drives screw mandrel of reduction box moves downward, the brasses of screw mandrel lower end opens under the effect of gravity and following discharge electrode, when the worm gear drives screw mandrel of reduction box moves upward, brasses shrinks under the effect of its outside skew wall and picks up electrode, thereby realized purpose of design of the present utility model.

The utility model compared with prior art, 1, with contact tube as the design of the easily section of splitting from the transformer to the fire door as short net, thereby reduced the difference of " wild phase " and " weakening mutually " in the hot stove in ore deposit, guaranteed the stability of the working of a furnace; 2, jumper wire board be designed to be staggered the sense of current, be outer triangle, thereby realized that under the situation that does not add the electric capacity compensator, natural power factor can reach 0.96-0.98; 3, adopt discharge electrode under the mechanical type, the one, improved working condition widely, do not need the blast-furnace man to creep into discharge electrode in the stove, reduced furnace outage time simultaneously, improved the working of a furnace; The 2nd, this mechanism is at 3 and promotes synchronously, thereby working stability is reliable, and operating maintenance is convenient, and wherein clamping force is strong; The 3rd, self-lock ability is strong, security of operation, and can according in utmost point sintering situation clamping electrode, reduce brasses consumption; The 4th, small investment, instant effect.

Description of drawings:

Fig. 1 is the general assembly schematic diagram of the hot stove in ore deposit.

Fig. 2 is the short network plane schematic diagram of the hot stove in ore deposit.

Fig. 3 is the short net lifting schematic diagram of the hot stove in ore deposit.

Fig. 4 is the schematic diagram of the short net jumper wire board of the hot stove in ore deposit.

Fig. 5 is the terminal plate schematic diagram of the hot stove in ore deposit.

Fig. 6 is the soft bus schematic diagram of the hot stove in ore deposit.

Fig. 7 is the schematic diagram of discharge electrode under the mechanical type of the hot stove in ore deposit.

The drawing reference numeral explanation:

The electronic hoister of 1-furnace shell square steel 2-

Discharge electrode 4-electric block under the 3-

5-controls frame 6-riser

7-long sleeve 8-copperhead

The soft bus of 9-man-like shelf 10-

11-contact tube 12-brasses

13-electric furnace 14-electric furnace basis

15-transformer 16-electrode

17-terminal plate 18-jumper wire board

19-dust cover 20-bolt

21-main tank lid 22-bolt

23-screw mandrel 24-bolt

25-sprocket wheel 26-thrust bearing

27-transfers electrode body case 28-flat key

The 29-reduction box

Embodiment:

Fig. 1-Fig. 7 is a kind of embodiment of the hot stove in ore deposit.

The enforcement of the hot stove in ore deposit: press prior art processing and fabricating parts with reference to Fig. 2-Fig. 7 and specification the 5th part, treat that it makes the back and gets final product by the prior art assembling and setting according to Fig. 1 and specification the 5th part.

Claims

1, a kind of by electric furnace basis 15, electric furnace 14, short net 30, riser 6, electric block 4, furnace shell square steel 1, lower electrode 3, control the hot stove in ore deposit that frame 5 and transformer 16 etc. are formed, it is characterized in that:

A, described short net 30 are as the easily section of splitting from transformer 15 to fire door by contact tube 11, one end of its contact tube is connected with transformer, the other end of contact tube then is connected with an end of soft bus 10 by jumper wire board 18, terminal plate 17, copperhead 8, and the other end of soft bus then is connected with electrode 16;

B, described discharge electrode 3 down are discharge electrode under the mechanical type, discharge electrode is fixed on the support 5 under its mechanical type, control frame and then be connected, be fixed on the lifting of discharge electrode under the mechanical type on the support then being controlled discharge electrode under its mechanical types by electronic hoister 2 with long sleeve 7;

2, the hot stove in ore deposit according to claim 1 is characterized in that: jumper wire board 18 be designed to the sense of current that is staggered, be outer triangle.

3, the hot stove in ore deposit according to claim 1 is characterized in that: be connected with cooling water in the contact tube 11.

4, the hot stove in ore deposit according to claim 1, it is characterized in that: discharge electrode is formed by transferring electrode body case 27, thrust bearing 26, sprocket wheel 25, nut 24, screw mandrel 23 main tanks lid 21, dust cover 19, flat key 28 and reduction box 29 under the mechanical type, its thrust bearing lays respectively at down between discharge electrode main box and the nut, between main tank lid and the nut, sprocket wheel is positioned on the nut, screw mandrel is positioned at nut, and the worm gear of reduction box then meshes with screw mandrel.