CN218202905U

CN218202905U - Oxygen top-blown furnace with detachable movable furnace bottom

Info

Publication number: CN218202905U
Application number: CN202222618934.4U
Authority: CN
Inventors: 孙杰; 叶超; 郑旭君; 文赵斌
Original assignee: Ruyuan Yao Autonomous County Xinyuan Environmental Protection Metal Technology Co ltd
Current assignee: Ruyuan Yao Autonomous County Xinyuan Environmental Protection Metal Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-01-03
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to a top-blown converter technical field especially relates to an oxygen top-blown converter with can dismantle activity stove bottom. The utility model provides an oxygen top-blown furnace with a detachable movable furnace bottom, which can solve the problems of the adoption of a dead furnace bottom of a small-sized converter, troublesome repair and long repair period, and comprises a furnace body, a furnace cap, a lower cone section of a furnace shell and the like; the furnace body is straight cask shape, furnace body top fixed connection stove cap, and the oxygen inlet groove has been seted up at stove cap top, and furnace body bottom fixed connection stove outer covering lower cone section, stove outer covering lower cone section are the truncated cone type. The utility model discloses a stove bottom device can be dismantled in the setting, has set up removable mechanism at the stove bottom, lets miniature oxygen top-blown stove can have a stove bottom of living, can adopt down to repair the stove mode when the top-blown stove breaks down, demolishs the stove bottom, and easy maintenance shortens the time of maintenance, and miniature oxygen top-blown stove bottom maintenance can not need special machinery and vehicle moreover, and it is convenient to dismantle.

Description

Oxygen top-blown furnace with detachable movable furnace bottom

Technical Field

The utility model relates to a top-blown converter technical field especially relates to an oxygen top-blown converter with can dismantle activity stove bottom.

Background

The converter system is a central link of metal smelting, and the process arrangement, equipment and level of mechanization and automation of the converter system are directly related to the advanced degree of the whole smelting plant. The rapid development of basic oxygen furnace smelting is mainly due to its numerous advantages over other metal smelting processes. The method has the advantages of high production efficiency, less investment, low cost, strong adaptability to raw materials, good quality of smelted products, multiple varieties and suitability for high-degree mechanized and automatic production.

The furnace of the oxygen top-blown converter consists of a furnace body, a tilting system, an oxygen lance and an oxygen supply system, wherein the uppermost end of the converter is called a furnace mouth, and then the converter is divided into three sections of a furnace cap, a furnace body and a furnace bottom from top to bottom.

Correspondingly, the hearth structure also has two types of dead hearth and live hearth. The movable furnace bottom adopts a downward repairing mode, and a furnace lining cooling block after the furnace bottom is removed, so that the lining is easy to remove, the furnace repairing is convenient, the labor condition is better, the furnace repairing time can be shortened, the productivity is improved, and the movable furnace bottom is suitable for large-scale converters, but special machinery and vehicles are required for assembling and disassembling the movable furnace bottom. The furnace shell of the dead furnace bottom has simple structure, light weight, low cost and reliable use, but adopts an upper furnace repairing mode when repairing the furnace, enters the furnace from a furnace mouth to work when repairing the furnace lining, has poor furnace repairing working condition and long time, and is mainly used for small converters.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art's shortcoming, the utility model provides an oxygen top blown converter with can dismantle activity stove bottom can solve small-size converter and adopt dead stove bottom, restores trouble and restores the problem of cycle length.

In order to solve the technical problem, the utility model provides such oxygen top-blown furnace with can dismantle activity stove bottom, conic section under furnace body, stove cap and the stove outer covering, the furnace body is straight cask shape, furnace body top fixed connection stove cap, and the oxygen inlet groove has been seted up at stove cap top, conic section under the furnace body bottom fixed connection stove outer covering, and conic section is the truncated cone type under the stove outer covering, still including welt and stove bottom, and the welt cover is established at the conic section under the stove outer covering, and the welt carries out sliding connection with the stove bottom, and the stove bottom surface sets up detachable machanism.

Preferably, detachable machanism is including protecting the steel sheet, the fixture block, connecting screw and stopper, a plurality of stoppers of fixedly connected with on the stove bottom, the stopper has all been seted up the aperture, connecting screw bottom sliding connection is on the stopper aperture, the connecting screw top is equipped with the screw thread, the fixture block carries out threaded connection with the connecting screw top, a plurality of protection steel sheets of the even fixedly connected with in welt lower part outside, it is corresponding with the stopper that protection steel sheet is protected, logical groove has been seted up to protection steel sheet bottom, the fixture block carries out sliding connection through leading to the groove with protection steel sheet.

Preferably, still including strengthening rib and backplate, strengthening rib fixed connection is in the furnace body lower part, and the strengthening rib top is cockscomb structure bottom and is the triangle-shaped form, fixedly connected with backplate on the furnace body, and the backplate is laminated with the furnace body mutually to the backplate bottom is the cusp.

Preferably, the furnace comprises a furnace mouth thickening ring and a cast iron water pipe, the bottom of the furnace cap is fixedly connected with the furnace mouth thickening ring, the bottom of the furnace mouth thickening ring is also in a zigzag shape, the cast iron water pipe is wound in the furnace cap, and the inlet and outlet ends of the cast iron water pipe are fixed on the right side of the furnace cap.

Preferably, the furnace body structure further comprises a supporting ring, an installation shaft and a fixing piece, the supporting ring is sleeved in the middle of the surface of the furnace body, the supporting ring is divided into two parts in an axial symmetry mode, connecting through holes are symmetrically formed in two ends of the supporting ring, the fixing piece penetrates through the through holes to fix the two symmetrical parts of the supporting ring on the surface of the furnace body, the installation shaft is fixedly connected to the middle of the supporting ring, and the installation shaft can be hung and fixed.

Adopt above-mentioned scheme, the utility model discloses the beneficial effect who reaches does:

the utility model discloses a stove bottom device can be dismantled in the setting, has set up removable mechanism at the stove bottom, lets miniature oxygen top-blown stove can have a stove bottom of living, can adopt down to repair the stove mode when the top-blown stove breaks down, demolishs the stove bottom, and easy maintenance shortens the time of maintenance, and miniature oxygen top-blown stove bottom maintenance can not need special machinery and vehicle in addition, and it is convenient to dismantle, can also make things convenient for the heat dissipation through demolising to the stove bottom simultaneously.

The utility model discloses still set up reinforcing apparatus, because the in-process of smelting at the metal is the highly compressed environment of a high temperature, so relatively test the stability and the heat resistance of furnace body, still be equipped with strengthening rib, backplate and fire door thickening ring so on the furnace body surface, can keep up steady oxygen top-blown furnace function, strengthen heat radiating area through the zigzag on the reinforcing apparatus.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic perspective view of the furnace body, the furnace cap and the protective steel plate of the present invention.

Fig. 3 is the utility model discloses a three-dimensional structure schematic diagram of fixture block, connecting screw and stopper.

Fig. 4 is a schematic perspective view of the reinforcing rib, the guard plate and the cast iron water pipe of the present invention.

Fig. 5 is a schematic perspective view of the trunnion ring, the furnace mouth thickening ring and the fixing member of the present invention.

The labels in the figures are: 1-furnace body, 2-furnace cap, 21-oxygen inlet groove, 3-furnace shell lower conical section, 4-lining plate, 41-furnace bottom, 5-protective steel plate, 51-through groove, 6-clamping block, 7-connecting screw rod, 8-limiting block, 9-reinforcing rib, 10-protective plate, 11-furnace mouth thickening ring, 12-cast iron water pipe, 13-backing ring, 14-mounting shaft and 15-fixing piece.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Example 1

The utility model provides an oxygen top-blown converter with can dismantle activity stove bottom, as shown in fig. 1 and fig. 2, including furnace body 1, cone 3 under stove cap 2 and the stove outer covering, furnace body 1 is the straight cask shape, 1 top fixed connection stove cap 2 of furnace body, oxygen inlet groove 21 has been seted up at 2 tops of stove cap, cone 3 under the 1 bottom fixed connection stove outer covering of furnace body, cone 3 is the truncated cone type under the stove outer covering, still including welt 4 and stove bottom 41, the 4 covers of welt are established and are equipped with cone 3 under the stove outer covering, welt 4 carries out sliding connection with stove bottom 41, stove bottom 41 surface sets up detachable mechanism.

As shown in fig. 2 and fig. 3, detachable mechanism is including protection steel sheet 5, fixture block 6, connecting screw 7 and stopper 8, a plurality of stoppers 8 of fixedly connected with on the stove bottom 41, the aperture has all been seted up to stopper 8, connecting screw 7 bottom sliding connection is on stopper 8 aperture, connecting screw 7 top is equipped with the screw thread, fixture block 6 carries out threaded connection with connecting screw 7 top, a plurality of protection steel sheets 5 of the even fixedly connected with in the lower part outside of welt 4, protection steel sheet 5 is corresponding with stopper 8, logical groove 51 has been seted up to protection steel sheet 5 bottom, fixture block 6 carries out sliding connection through leading to groove 51 with protection steel sheet 5.

As shown in fig. 4 and 5, the furnace body further comprises a supporting ring 13, an installation shaft 14 and a fixing piece 15, the supporting ring 13 is sleeved in the middle of the surface of the furnace body 1, the supporting ring 13 is divided into two parts in an axisymmetric manner, connecting through holes are symmetrically formed in two ends of the supporting ring 13, the fixing piece 15 penetrates through the through holes to fix the two symmetrical parts of the supporting ring 13 on the surface of the furnace body 1, the installation shaft 14 is fixedly connected in the middle of the supporting ring 13, and the installation shaft 14 can be fixedly suspended.

When carrying out metal smelting, pour into the molten iron into 1 inside back of furnace body, furnace body 1 hangs through mounting 15 on the backing ring 13 and carries out pyrometallurgical treatment, when oxygen top-blown converter breaks down, generally all be in bottom emergence problem, because deposit in the bottom through the most of gravity influence metal waste residue, so the bottom breaks down relatively easily, because this is a detachable 41 structures in stove bottom, can rotate the dismantlement through the threaded connection of connecting screw 7 with fixture block 6, fixture block 6 again with protection steel sheet 5 joint, protection steel sheet 5 just can be dismantled, the stove bottom 41 and the welt 4 of dismantling the back bottom just can be separated, the welt 4 also can be separated with the lower conic section 3 of stove outer covering, so just can carry out a clearance and maintenance to stove bottom 41.

Example 2

On the basis of the embodiment 1, as shown in fig. 4 and 5, the furnace body further comprises a reinforcing rib 9 and a guard plate 10, wherein the reinforcing rib 9 is fixedly connected to the lower part of the furnace body 1, the top of the reinforcing rib 9 is in a zigzag shape, the bottom of the reinforcing rib is in a triangular shape, the guard plate 10 is fixedly connected to the furnace body 1, the guard plate 10 is attached to the furnace body 1, and the bottom of the guard plate 10 is in a tooth shape.

As shown in fig. 4 and 5, the furnace cover further comprises a furnace mouth thickening ring 11 and a cast iron water pipe 12, the bottom of the furnace cover 2 is fixedly connected with the furnace mouth thickening ring 11, the bottom of the furnace mouth thickening ring 11 is also in a zigzag shape, the cast iron water pipe 12 is wound inside the furnace cover 2, and the inlet and outlet ends of the cast iron water pipe 12 are fixed on the right side of the furnace cover 2.

In the whole oxygen top-blown converter working process, because of the high-temperature and high-pressure operating environment, the cast iron water pipe 12 is wound in the furnace cap 2, water can be added through the connector for cooling, the outer surface is provided with a multi-layer reinforcing device, and the reinforcing device is a reinforcing rib 9, a protective plate 10 and a furnace mouth thickening ring 11, so that the outer side of the furnace body 1 can be protected and reinforced, and the heat dissipation is accelerated.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations, modifications and substitutions can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides an oxygen top-blown furnace with can dismantle activity stove bottom, including furnace body (1), conic section (3) under furnace cap (2) and the stove outer covering, furnace body (1) is the straight round barrel shape, furnace body (1) top fixed connection furnace cap (2), oxygen inlet groove (21) have been seted up at furnace cap (2) top, conic section (3) under furnace body (1) bottom fixed connection stove outer covering, conic section (3) are the truncated cone type under the stove outer covering, a serial communication port, still including welt (4) and stove bottom (41), conic section (3) under the stove outer covering is established to welt (4) cover, welt (4) carry out sliding connection with stove bottom (41), stove bottom (41) surface sets up detachable mechanism.

2. The oxygen top-blown converter with the detachable movable furnace bottom according to claim 1, wherein the detachable mechanism comprises a plurality of limiting blocks (8) fixedly connected to the furnace bottom (41), each limiting block (8) is provided with a small hole, the bottom end of each connecting screw (7) is slidably connected to the small hole of each limiting block (8), the top of each connecting screw (7) is provided with a thread, each clamping block (6) is in threaded connection with the top end of each connecting screw (7), the outer side of the lower portion of each lining plate (4) is uniformly and fixedly connected with a plurality of protective steel plates (5), the protective steel plates (5) correspond to the limiting blocks (8), the bottoms of the protective steel plates (5) are provided with through grooves (51), and the clamping blocks (6) are slidably connected with the protective steel plates (5) through the through grooves (51).

3. The oxygen top-blown furnace with the detachable movable bottom according to claim 2, further comprising a reinforcing rib (9) and a protecting plate (10), wherein the reinforcing rib (9) is fixedly connected to the lower portion of the furnace body (1), the top of the reinforcing rib (9) is serrated, the bottom of the reinforcing rib is triangular, the protecting plate (10) is fixedly connected to the furnace body (1), the protecting plate (10) is attached to the furnace body (1), and the bottom of the protecting plate (10) is serrated.

4. The oxygen top-blown converter with the detachable movable bottom is characterized by further comprising a furnace mouth thickening ring (11) and a cast iron water pipe (12), the furnace mouth thickening ring (11) is fixedly connected to the bottom of the furnace cap (2), the bottom of the furnace mouth thickening ring (11) is also in a sawtooth shape, the cast iron water pipe (12) is wound inside the furnace cap (2), and the inlet and outlet ends of the cast iron water pipe (12) are fixed to the right side of the furnace cap (2).

5. The oxygen top-blown converter with the detachable movable furnace bottom according to claim 4, characterized by further comprising a trunnion ring (13), a mounting shaft (14) and a fixing member (15), wherein the trunnion ring (13) is sleeved in the middle of the surface of the furnace body (1), the trunnion ring (13) is axially symmetrically divided into two parts, connecting through holes are symmetrically formed in both ends of the trunnion ring (13), the fixing member (15) penetrates through the through holes to fix the two symmetrical parts of the trunnion ring (13) on the surface of the furnace body (1), the mounting shaft (14) is fixedly connected in the middle of the trunnion ring (13), and the mounting shaft (14) can be fixedly suspended.