CN213335573U

CN213335573U - Submerged arc furnace capable of prolonging service life of electrode

Info

Publication number: CN213335573U
Application number: CN202022249024.4U
Authority: CN
Inventors: 王鹏; 景振军; 赵烜; 伏小军
Original assignee: Ningxia Changmaoxiang Smelting Co ltd
Current assignee: Ningxia Changmaoxiang Smelting Co ltd
Priority date: 2020-10-11
Filing date: 2020-10-11
Publication date: 2021-06-01
Anticipated expiration: 2030-10-11

Abstract

The utility model provides a can prolong submerged arc furnace of electrode life, including furnace body, rotating base, top cooling body, rotating base includes base, carousel, a plurality of driving source, top cooling body includes mounting bracket, supporting seat, electrode, holder, centre gripping drive, cooling blower, cooling tube, air distributor, and the holder is two parts that open and shut for holding tightly the electrode, and cooling blower is fixed in the outside frame, and cooling blower is connected to one end of cooling tube, and the other end is connected with air distributor, air distributor sets up above the holder, and this scheme is through setting up top cooling body above the electrode, when electrode temperature is unusually high, starts cooling blower, and cold wind flows down along the gap of holder and electrode, blows along the electrode surface to the alloy liquid surface around the perpendicular electrode, thereby reduces the temperature here, the temperature of the end part of the electrode can be quickly reduced, the abnormal burning loss of the electrode can be avoided, and the service life of the electrode can be prolonged.

Description

Submerged arc furnace capable of prolonging service life of electrode

Technical Field

The utility model relates to a hot stove in ore deposit production ferrosilicon equipment technical field especially relates to a can prolong electrode life's hot stove in ore deposit.

Background

The ferrosilicon smelting usually adopts an ore furnace, the production capacity of the ore furnace is very large, the volume is large, and the amount of the alloy liquid for single smelting is large, so that the ferrosilicon smelting is selected by various manufacturers. The bottom rotary submerged arc furnace is the choice of some producers, however how the whole furnace body can guarantee stable and cheap circular motion becomes the problem that these producers need to solve urgently. In addition, because the electrode is made of alloy liquid and is in direct contact with the alloy liquid, the temperature borne by the electrode is very high, the burning loss is serious, and how to ensure that the electrode is stably and continuously burnt according to the design requirement according to the preset process is also very important.

Disclosure of Invention

There is a need for a submerged arc furnace that can extend the useful life of the electrode.

The submerged arc furnace capable of prolonging the service life of the electrode comprises a furnace body, a rotary base and a top cooling mechanism, wherein a plurality of tap holes are formed in the side wall of the furnace body through the top opening of the furnace body, mud bags are blocked in the tap holes, the rotary base is arranged at the bottom of the furnace body and comprises a base, a rotary disc and a plurality of driving sources, the base is fixed on a foundation, a plurality of carrier rollers are arranged on the upper surface of the base, the carrier rollers are in rolling fit with the base, the upper end surfaces of the carrier rollers are higher than the upper surface of the base, the rotary disc is a circular disc body, the rotary disc is arranged above the base, the bottom of the rotary disc is in rolling fit with the carrier rollers, a plurality of tooth holes are formed in the circumferential outer wall of the rotary disc, the tooth holes are evenly distributed on the outer wall of the rotary disc at equal intervals, the driving sources, the driving gear is meshed with the tooth holes of the turntable and is used for driving the turntable and the furnace body to rotate, at least one feeding hole is formed in the side wall of the furnace body and is used for feeding ore materials into the furnace body, the top cooling mechanism comprises a mounting frame, a supporting seat, electrodes, a clamp holder, a clamping driver, a cooling fan, a cooling pipeline and an air distributor, the mounting frame is fixed on the side wall of the two opposite sides of the furnace body, one end of the supporting seat is fixedly connected with the mounting frame, the clamp holder is arranged at the other end of the supporting seat, the clamp holder is two opening and closing parts and is used for tightly holding the electrodes, one end of the clamping driver is fixed on the mounting frame, the other end of the clamping driver is connected with the clamp holder and is used for tightly pushing the clamp holder, the cooling fan is fixed on an external frame, one, so that the air blown out by the air distributor flows towards the interior of the furnace body.

Preferably, the three feeding ports are uniformly distributed around the furnace body, and the heights of the three feeding ports are reduced in sequence.

Preferably, an outer rolling ring is further arranged on the outer circumference of the turntable, the outer rolling ring is an annular piece and is fixed above the base, the diameter of an inner ring of the outer rolling ring is larger than that of an outer ring of the turntable, a plurality of outer limiting rollers are arranged on the inner wall of the outer rolling ring, the outer limiting rollers are connected with the outer rolling ring through shafts, so that the outer limiting rollers vertically roll relative to the outer rolling ring, and the rolling surface of each outer limiting roller is in contact with the outer wall of the turntable.

Preferably, an inner rolling ring is further arranged on the inner circumference of the turntable, the inner rolling ring is an annular part and is fixed above the base, the diameter of the outer ring of the inner rolling ring is smaller than that of the inner ring of the turntable, a plurality of inner limiting rollers are arranged on the outer wall of the inner rolling ring, the inner limiting rollers are connected with the inner rolling ring through shafts, so that the inner limiting rollers vertically roll relative to the inner rolling ring, and the rolling surface of each inner limiting roller is in contact with the inner wall of the turntable.

Preferably, a central shaft seat and a spoke are further arranged at the central position of the base, the central shaft seat is fixed at the circle center of the base, the spoke is connected between the central shaft seat and the rotary table, and the central shaft seat rotates relative to the base.

Preferably, the side wall of the furnace body is an nonagon furnace body formed by connecting nine planes side by side.

Preferably, a sliding groove is formed in the upper surface of one end, close to the electrode, of the supporting seat, the sliding groove is arranged along the horizontal direction, a sliding block is arranged at the lower end of the clamping holder, and the sliding block is in sliding fit with the sliding groove.

Preferably, the clamping drive is an oil cylinder, a cylinder seat of the oil cylinder is connected with the mounting frame fixing frame, and a piston end is connected with the clamp.

Preferably, the air distributor is a hollow circular ring and is positioned above the clamp holder, and a plurality of air outlets are formed in the lower end face of the hollow circular ring.

The utility model discloses in, through setting up top cooling body above the electrode, when electrode temperature is unusually high, start cooling blower, cold wind flows downwards along the gap of holder and electrode, blows along the electrode surface to alloy liquid surface around the perpendicular electrode, thereby reduces the temperature at here, can reduce the temperature of electrode tip rapidly, avoids its abnormal scaling loss, prolongs its life-span.

Drawings

FIG. 1 is a schematic structural view of the furnace body.

Fig. 2 is a front view of another preferred embodiment of the rotating base.

Fig. 3 is a schematic top view of fig. 2.

Fig. 4 is a front view of fig. 1. This figure is a diagram of another embodiment showing the addition of a support base.

Fig. 5 is a bottom view of the air distributor. Aim at shows the direction of air outlet.

In the figure: the furnace body 10, the taphole 11, the rotating base 20, the base 21, the carrier roller 211, the turntable 22, the tooth hole 221, the driving source 23, the mounting frame 31, the supporting seat 311, the chute 3111, the electrode 32, the clamper 33, the clamping drive 331, the slider 332, the cooling fan 34, the cooling pipeline 35, the air distributor 36, the air outlet 361, the outer rolling ring 41, the outer limit roller 42, the inner rolling ring 51, the inner limit roller 52, the center pedestal 61 and the web 62.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1-5, an embodiment of the present invention provides an ore heating furnace capable of prolonging the service life of an electrode, including a furnace body 10, a rotary base 20 and a top cooling mechanism, wherein the top opening of the furnace body 10 is further provided with a plurality of tapholes 11 on the side wall of the furnace body 10, mud packs are sealed in the tapholes 11, the rotary base 20 is arranged at the bottom of the furnace body 10, the rotary base 20 includes a base 21, a turntable 22 and a plurality of driving sources 23, the base 21 is fixed on a foundation, a plurality of carrier rollers 211 are arranged on the upper surface of the base 21, the carrier rollers 211 are in rolling fit with the base 21, the upper end surface of the carrier rollers 211 is higher than the upper surface of the base 21, the turntable 22 is a circular disk body, the turntable 22 is arranged above the base 21, the bottom of the turntable 22 is in rolling fit with the carrier rollers 211, a plurality of tooth holes 221 are further arranged on the circumferential outer wall of the turntable 22, and, the driving source 23 comprises a driving motor and a driving gear, the driving motor is fixedly arranged, the driving gear is in transmission connection with the driving motor, the driving gear is in meshing connection with a tooth hole 221 of the rotary table 22 and is used for driving the rotary table 22 and the furnace body 10 to rotate, at least one feeding hole is formed in the side wall of the furnace body 10 and is used for feeding ore materials into the furnace body 10, the top cooling mechanism comprises an installation frame 31, a supporting seat 311, an electrode 32, a clamp holder 33, a clamp driving 331, a cooling fan 34, a cooling pipeline 35 and an air distributor 36, the installation frame 31 is fixed on the side walls of the two opposite sides of the furnace body 10, one end of the supporting seat 311 is fixedly connected with the installation frame 31, the clamp holder 33 is installed at the other end, the clamp holder 33 is two opening and closing parts and is used for tightly holding the electrode 32, one, the cooling fan 34 is fixed on the external frame, one end of the cooling pipeline 35 is connected with the cooling fan 34, the other end is connected with the air distributor 36, the air distributor 36 is arranged above the clamper 33, and the air outlet 361 of the air distributor 36 is arranged downwards, so that the air blown out by the air distributor 36 flows towards the inside of the furnace body 10.

The feeding hole is arranged, when feeding, the feeding chute is lapped on the feeding hole, so that the height of the chute is reduced, the height of the material entering the alloy liquid is reduced, the splashing of the alloy liquid is reduced, the disturbance of the alloy liquid is slowed down, and the impact of the alloy liquid and the material on the electrode 32 is avoided. The cooling fan 34 can cool down the alloy liquid on the surface of the electrode 32 and around the electrode 32, so as to realize cooling at the highest speed, ensure the stable and normal temperature of the electrode 32 and prolong the service life of the electrode.

Further, the material loading mouth is the equipartition in the three around furnace body 10, the height of three material loading mouth reduces in proper order. For example, the heights of the bottoms of the three feeding ports are respectively 0.5m, 0.8 m and 1.2 m from the opening part of the furnace body 10, so that the chute is lapped on the feeding ports at different heights, when the materials in the furnace body 10 are less or just start to feed, the position with the largest feeding port can be selected for feeding, the falling height difference of the materials is reduced, the mechanical damage to the furnace body 10 is reduced, the alloy liquid in the furnace body 10 is higher, namely, in the smelting process, during feeding, the feeding of different feeding ports can be selected according to the liquid level height, and the phenomenon that the liquid level splashes due to too large height difference or the materials are too close to the liquid level is avoided.

Further, an outer rolling ring 41 is arranged on the outer circumference of the turntable 22, the outer rolling ring 41 is an annular part and is fixed above the base 21, the diameter of the inner ring of the outer rolling ring 41 is larger than that of the outer ring of the turntable 22, a plurality of outer limiting rollers 42 are arranged on the inner wall of the outer rolling ring 41, the outer limiting rollers 42 are connected with the outer rolling ring 41 through shafts, so that the outer limiting rollers 42 vertically roll relative to the outer rolling ring 41, and the rolling surfaces of the outer limiting rollers 42 are in contact with the outer wall of the turntable 22.

Further, an inner rolling ring 51 is arranged on the inner circumference of the rotary table 22, the inner rolling ring 51 is an annular part and is fixed above the base 21, the diameter of the outer ring of the inner rolling ring 51 is smaller than that of the inner ring of the rotary table 22, a plurality of inner limiting rollers 52 are arranged on the outer wall of the inner rolling ring 51, the inner limiting rollers 52 are connected with the inner rolling ring 51 through shafts, so that the inner limiting rollers 52 vertically roll relative to the inner rolling ring 51, and the rolling surface of the inner limiting rollers 52 is in contact with the inner wall of the rotary table 22.

For example, a column shaft is provided on the inner wall of the outer rolling ring 41, and the outer limit roller 42 is a cylindrical body connected to the column shaft. This scheme is spacing through inside and outside two directions to carousel 22, avoids the centre of a circle off position when rotating for a long time.

Further, a center shaft seat 61 and a horn 62 are provided at the center position of the base 21, the center shaft seat 61 is fixed at the center of the base 21, the horn 62 is connected between the center shaft seat 61 and the turntable 22, and the center shaft seat 61 rotates relative to the base 21. Thereby limiting the turntable 22 and avoiding the displacement of the center of a circle in the process of rotating the turntable 22.

The base 21, the turntable 22 and the rolling fit therebetween in this embodiment belong to the prior art in the field, and are not described herein again. Such as the solution in patent No. 2018210209623.

Further, the lateral wall of the furnace body 10 is a nonagon furnace body 10 formed by connecting nine planes side by side. When the furnace body 10 integrally rotates, an included angle is formed between two adjacent plane side walls, and due to the included angle, alloy liquid in the furnace body 10 can be stirred, so that the liquid is promoted to flow along the inner wall of the furnace body 10.

Further, set up spout 3111 at the one end upper surface that supporting seat 311 is close to electrode 32, spout 3111 sets up along the horizontal direction, the lower extreme of holder 33 sets up slider 332, slider 332 and spout 3111 sliding fit to make supporting seat 311 when supporting holder 33 gravity, can also guarantee its horizontal direction and remove, realize holding tightly or relaxing electrode 32.

Further, the clamping drive 331 is an oil cylinder, a cylinder seat of the oil cylinder is fixedly connected with the mounting frame 31, and a piston end is connected with the clamp 33.

Further, the air distributor 36 is a hollow ring, and is located above the holder 33, and a plurality of air outlets 361 are formed on the lower end surface of the hollow ring. In the scheme, cold air surrounds the circumferential outer wall of the electrode 32 and blows from top to bottom, so that the temperature borne by the outer wall of the electrode 32 is uniform and consistent, the downward blown air blows on the liquid level of the alloy liquid and then diffuses to the periphery, the temperature of the alloy liquid taking the electrode 32 as the center is blown away and diffuses to the periphery, the temperature reduction of the alloy liquid around the electrode 32 is accelerated in a targeted manner, the end part of the electrode 32 is cooled rapidly, and abnormal burning loss of the electrode is avoided.

The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.

The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or part of the above-described embodiments may be implemented and equivalents thereof may be made to the claims of the present invention while remaining within the scope of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a can prolong electrode life's hot stove in ore deposit which characterized in that: the rotary furnace comprises a furnace body, a rotary base and a top cooling mechanism, wherein a plurality of tapping holes are formed in the side wall of the furnace body at the top opening of the furnace body, mud bags are blocked in the tapping holes, the rotary base is arranged at the bottom of the furnace body and comprises a base, a turntable and a plurality of driving sources, the base is fixed on a foundation, a plurality of carrier rollers are arranged on the upper surface of the base, the carrier rollers are matched with the base in a rolling manner, the upper end surfaces of the carrier rollers are higher than the upper surface of the base, the turntable is a circular turntable body, the turntable is arranged above the base, the bottom of the turntable is matched with the carrier rollers in a rolling manner, a plurality of tooth holes are formed in the outer wall of the circumference of the turntable, the tooth holes are uniformly distributed on the outer wall of the turntable at equal intervals, the driving sources comprise a driving motor and a driving gear, used for driving the rotating disc and the furnace body to rotate, the side wall of the furnace body is provided with at least one feeding hole for feeding ore materials into the furnace body, the top cooling mechanism comprises a mounting frame, a supporting seat, an electrode, a clamp holder, a clamping drive, a cooling fan, a cooling pipeline and an air distributor, the mounting rack is fixed on the side walls at two opposite sides of the furnace body, one end of the supporting seat is fixedly connected with the mounting rack, the other end is provided with a clamp holder which is two opening and closing parts, used for holding the electrode tightly, one end of the clamping drive is fixed on the mounting frame, the other end is connected with the clamp holder, used for tightly propping the clamper, the cooling fan is fixed on the external frame, one end of the cooling pipeline is connected with the cooling fan, the other end is connected with the air distributor, the air distributor is arranged above the clamp holder, and an air outlet of the air distributor is arranged downwards so that air blown out by the air distributor flows towards the inside of the furnace body.

2. The submerged arc furnace according to claim 1, capable of extending the service life of the electrodes, wherein: the three feeding ports are uniformly distributed around the furnace body, and the heights of the three feeding ports are sequentially reduced.

3. The submerged arc furnace according to claim 1, capable of extending the service life of the electrodes, wherein: the outer circumference of the turntable is also provided with an outer rolling ring which is an annular part and is fixed above the base, the diameter of an inner ring of the outer rolling ring is larger than that of an outer ring of the turntable, the inner wall of the outer rolling ring is provided with a plurality of outer limiting rollers, the outer limiting rollers are connected with the outer rolling ring through shafts, so that the outer limiting rollers vertically roll relative to the outer rolling ring, and the rolling surface of each outer limiting roller is in contact with the outer wall of the turntable.

4. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: the inner circumference of the turntable is also provided with an inner rolling ring which is an annular part and is fixed above the base, the diameter of the outer ring of the inner rolling ring is smaller than that of the inner ring of the turntable, the outer wall of the inner rolling ring is provided with a plurality of inner limiting rollers, the inner limiting rollers are connected with the inner rolling ring through shafts, so that the inner limiting rollers vertically roll relative to the inner rolling ring, and the rolling surface of each inner limiting roller is in contact with the inner wall of the turntable.

5. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: a central shaft seat and a spoke are further arranged at the central position of the base, the central shaft seat is fixed at the center of a circle of the base, the spoke is connected between the central shaft seat and the rotary table, and the central shaft seat rotates relative to the base.

6. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: the side wall of the furnace body is a nonagon furnace body formed by connecting nine planes side by side.

7. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: the upper surface of one end of the supporting seat close to the electrode is provided with a sliding groove, the sliding groove is arranged along the horizontal direction, the lower end of the clamp holder is provided with a sliding block, and the sliding block is in sliding fit with the sliding groove.

8. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: the clamping drive is an oil cylinder, a cylinder seat of the oil cylinder is connected with the mounting frame fixing frame, and a piston end is connected with the clamp.

9. A submerged arc furnace capable of extending the useful life of an electrode as defined in claim 3, wherein: the air distributor is a hollow circular ring and is positioned above the clamp holder, and a plurality of air outlets are formed in the lower end face of the hollow circular ring.