CN210089395U

CN210089395U - Water-cooled furnace cover of submerged arc furnace

Info

Publication number: CN210089395U
Application number: CN201920402787.2U
Authority: CN
Inventors: 顾志玉; 周国忠; 石斌龙
Original assignee: Jiangsu Delong Nickel Industry Co Ltd
Current assignee: Jiangsu Delong Nickel Industry Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-02-18
Anticipated expiration: 2029-03-28

Abstract

The utility model provides a hot stove water-cooling bell in ore deposit, including the bell body, the bell body has water inlet and delivery port for pressing from both sides jacket structure and having, the periphery of bell body have with furnace body mouth flange complex flange portion. The cooling device has the advantages of good cooling effect, thermal shock resistance and convenience in installation.

Description

Water-cooled furnace cover of submerged arc furnace

Technical Field

The utility model belongs to hot stove bell structure field in ore deposit, specific theory relates to a hot stove bell in water-cooled ore deposit.

Background

At present, internal ore-smelting furnace in ferronickel production adopts air-cooled skeleton to hang brick and pours the bell basically, it includes the skeleton girder, the bell supporting seat, the beam hanger frame, hanging resistant firebrick, resistant firebrick hangs the roof beam, resistant firebrick gallows and bell elastic boom, wherein, bell supporting seat connection is on furnace body mouth flange, the skeleton girder is connected on the bell supporting seat, resistant firebrick hangs the roof beam and passes through the beam hanger frame and connect on the skeleton girder, hanging resistant firebrick hangs the roof beam through resistant firebrick gallows connection, bell elastic boom one end is connected on the skeleton girder, the other end is connected on the last one deck platform.

Such a furnace lid has several problems as follows: the framework, the hanging pieces, the hanging bricks and the casting material are heated to expand, so that the hanging bricks are separated from the hanging pieces and are easy to crack and break in the production process, the casting material borne by the brick falls off in a large area, and the production and the use are influenced. And secondly, hanging bricks are fully distributed on the surface of the furnace cover, the upper framework is dense, dust is easily accumulated, the furnace cover is difficult to clean, and the furnace cover is easy to collapse due to overweight, so that the production and the use are influenced. 3. The body is not resistant to high temperature erosion and gas scouring, especially, the body is easy to damage due to temperature change, cracks are generated, the body is not tight, gas in the furnace is easy to overflow, on one hand, resource waste is caused, on the other hand, carbon monoxide gas in a factory building is increased, safety accidents are caused, and the body needs to be maintained frequently (8 months/time) to block normal production activities.

In order to solve the above problems, we have always sought an ideal technical solution.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the not enough of prior art to a wide, safe and reliable's relief valve of application scope is provided.

The utility model adopts the technical proposal that: the utility model provides a hot stove bell in ore deposit, includes the bell body, the bell body is jacket structure and has water inlet and delivery port, the periphery of bell body have with furnace body mouth flange complex flange portion.

Based on the above, the downside of bell body is provided with the casting material layer.

Based on the above, the furnace cover body is of a split structure and comprises a plurality of jacket split bodies, and each jacket split body is provided with a water inlet and a water outlet. The split bodies of the clamping sleeves can be spliced by rivets, bolts and the like. The split structure can effectively relieve physical shaking in production and abrasion of internal pressure change on the furnace cover body.

Based on the above, the jacket is internally provided with the partition plate in a split manner to separate the inside of the jacket into the labyrinth water channel.

Based on the above, the furnace cover further comprises a plurality of furnace cover component split bodies. In order to facilitate processing and manufacturing, the furnace cover component is independent and comprises a smoke discharge hole, an electrode hole, a material hoisting hole and the like, and the furnace cover component is used for determining whether the furnace cover component is manufactured into a jacket or not according to the relative size of the components and the manufacturing difficulty.

Based on the above, the furnace cover body comprises a central high-temperature area split body and a peripheral low-temperature area split body, and the high-temperature area split body is made of high-temperature-resistant materials. Because the electrode is erected at the center of the furnace cover, the temperature is higher than that at the center of the furnace cover at the periphery of the furnace cover, and the high-temperature distinguishing body is made of high-temperature-resistant materials, such as austenitic steel, so that the service life of the high-temperature distinguishing body is prolonged, and the cost is reduced.

Based on the above, the cross section of the low-temperature zone split body is of the L-shaped structure, so that the furnace cover is prevented from collapsing and deforming due to hot bending of the split body component.

Based on the above, two adjacent low temperature regions are connected through bolts, so that the installation and the removal are convenient.

Based on the above, two adjacent high temperature areas are connected through bolts, so that the installation and the removal are convenient.

Based on the above, the high-temperature area split body and the low-temperature area split body are respectively hung on a building above the furnace body through hanging pieces, and the low-temperature area split body is in lap joint with the high-temperature area split body.

Compared with the prior art, the utility model has substantial characteristics and progress, in particular to a jacket structure, adopts a water cooling structure, is not easy to crack and has good cooling effect; compared with a hanging beam type air-cooled furnace cover, the structure of beams and hanging pieces at all levels is eliminated, and the whole surface of the water-cooled furnace cover is simple and convenient to clean and maintain. Furthermore, the bottom side of the furnace cover is provided with a pouring material layer, so that heat preservation and heat insulation are realized, and the thermal shock resistance of the furnace cover is ensured. Furthermore, the split structure is adopted, the structure is simple, the casting material layer on the reverse side can be constructed in an alternative site in advance, and can be constructed in a staggered manner with the refractory material in the submerged arc furnace, so that the phenomenon that the performance of the refractory material is influenced by dripping water when the magnesium refractory material in the furnace is cast is avoided, the construction quality of the casting material layer is also ensured, and the installation progress is accelerated; the split structure reduces the cooling range of single-strand cooling water, thereby improving the cooling effect. Furthermore, the jacket is divided into labyrinth-type water channels, so that the flow of cooling water can be effectively guided, the short circuit phenomenon of the cooling water is avoided, and the cooling effect is enhanced. The cooling device has the advantages of good cooling effect, thermal shock resistance and convenience in installation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of a low temperature zone split body.

FIG. 3 is a schematic view showing the flow direction of water in a split body of a jacket.

In the figure, 1, a low-temperature area is separated, 2, a high-temperature area is separated, 31, an electrode hole, 32, a smoke discharge hole, 33, a material hoisting hole, 4, a flange edge part, 5, a coaming, 6, a bolt hole, 7, an overlapping step, 8, a partition board, 91, a water inlet and 92, and a water outlet.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

The utility model provides a hot stove bell in ore deposit, includes the bell body, the bell body is jacket structure and has water inlet 91 and delivery port 92, the periphery of bell body have with furnace body mouth flange complex flange portion 4, through flange portion 4 and furnace body coupling. The downside of bell body is provided with the casting material layer, prevents the injury of thermal radiation to the bell. The furnace cover body is of a split structure and comprises a plurality of jacket split bodies and a plurality of furnace cover member split bodies, in the figure 1, the furnace cover member split bodies comprise split bodies with smoke discharge holes 32, split bodies with electrode holes 31 and split bodies with material hoisting holes 33, wherein the split bodies with the smoke discharge holes 32 and the split bodies with the electrode holes 31 are of a non-jacket structure due to large areas and complex structures. As shown in fig. 3, the jacket split body has a water inlet 91 and a water outlet 92, and a partition plate 8 is arranged in the jacket split body to block the inside of the jacket split body into a labyrinth-type water channel, wherein the water flow in the water channel is as shown in the figure.

The furnace cover body comprises a central high-temperature zone division body 2 and a peripheral fan-shaped low-temperature zone division body 1, wherein the high-temperature zone division body 2 is made of high-temperature-resistant materials, and the high-temperature zone division body used by the applicant is made of 310S materials. The high-temperature area split body 2 and the low-temperature area split body 1 are respectively hung on a building through an elastic hanging rod. The section of the low-temperature area split body 1 is of an L-shaped structure, the low-temperature area split body further comprises a top plate, a bottom plate and surrounding enclosing plates 5, the front end of the low-temperature area split body 1 is provided with a lapping step 7, and the reverse pouring part of the high-temperature area split body 2 is pressed at the front end of the low-temperature area split body 1 and is provided with a corresponding lapping step. The coamings 5 on two sides of the low-temperature split body 1 are provided with a plurality of bolt holes 6, and two adjacent low-temperature-region split bodies 1 are connected through bolts. Similarly, the high-temperature split body also comprises a top plate, a bottom plate and surrounding coamings, and two adjacent high-temperature-region split bodies are connected through bolts.

When the split type solar cell is manufactured, the high-temperature split bodies and the low-temperature split bodies are manufactured firstly, and then the casting material layers of the split bodies are cast. When the device is installed, the first low-temperature area is positioned according to the arranged electrode position, and the low-temperature split bodies are gradually spliced into outer circular rings in sequence and hung on a building on the upper side of the furnace body; the high temperature area split bodies are provided with electrodes according to the positions of the electrode holes, are spliced and are pressed on the steps of the adjacent low temperature area split bodies according to the arranged positions of the electrodes and are also hung on a building on the upper side of the furnace body.

The utility model adopts the jacket structure to be internally communicated with the circulating cooling water, the reverse side is poured in advance to pour and preserve heat, the temperature of the furnace cover is constant, and the integral performance is good; and a split type steel structure is adopted, so that the anti-vibration sealing ring is good in physical vibration resistance, strong in sealing performance and not prone to deformation and damage, and the service life is prolonged from original 8 months to 5 years.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The utility model provides a hot stove water-cooling bell in ore deposit which characterized in that, it includes the bell body, the bell body is jacket structure and has water inlet and delivery port, the periphery of bell body have with furnace body mouth flange complex flange limit portion.

2. The submerged arc furnace water-cooled roof according to claim 1, characterized in that a layer of casting material is provided on the underside of the roof body.

3. The submerged arc furnace water-cooling furnace cover according to claim 1 or 2, characterized in that the furnace cover body is of a split structure and comprises a plurality of jacket split bodies, and each jacket split body is provided with a water inlet and a water outlet.

4. The submerged arc furnace water-cooled furnace cover according to claim 3, characterized in that a partition plate is arranged in the jacket split body to separate the inside of the jacket split body into a labyrinth water channel.

5. The submerged arc furnace water-cooled roof cover according to claim 4, characterized in that it further comprises a plurality of roof member sub-bodies.

6. The submerged arc furnace water-cooled furnace cover according to claim 5, characterized in that the furnace cover body comprises a central high-temperature area split body and a peripheral low-temperature area split body, and the high-temperature area split body is made of high-temperature resistant material.

7. The submerged arc furnace water-cooled furnace cover according to claim 6, characterized in that the cross section of the low temperature zone split body is of an L-shaped structure.

8. The submerged arc furnace water-cooled roof according to claim 7, characterized in that two adjacent low temperature area sub-areas are connected by bolts.

9. The submerged arc furnace water-cooled roof according to claim 8, characterized in that two adjacent high temperature area sub-areas are connected by bolts.

10. The submerged arc furnace water-cooled furnace cover according to claim 9, characterized in that the high-temperature area split body and the low-temperature area split body are respectively hung on a building above the furnace body through hanging pieces, and the low-temperature area split body is overlapped with the high-temperature area split body.