CN111578708B

CN111578708B - Ring type roasting furnace for roasting graphite electrode

Info

Publication number: CN111578708B
Application number: CN202010378500.4A
Authority: CN
Inventors: 杨世文; 宗超; 孙钢; 李二伟; 康恒涛; 程单军
Original assignee: Henan Fuxing New Material Technology Co ltd
Current assignee: Henan Fuxing New Material Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-09-24
Anticipated expiration: 2040-05-07
Also published as: CN111578708A

Abstract

The invention discloses a ring-type roasting furnace for roasting graphite electrodes and a roasting method, comprising a furnace body and a fixing device, wherein a first roasting plate is annularly distributed in the furnace body, roasting rods are annularly and uniformly distributed on the inner side of the first roasting plate, the center of the annular distribution of the roasting rods is provided with the fixing device, the fixing device is annularly distributed between the roasting rods and the first roasting plate, the graphite electrodes are sleeved on the fixing device and are fixedly connected with the furnace body, the front side of the furnace body is provided with an end cover, and the end cover is provided with a fixing seat. The production cost is reduced.

Description

Ring type roasting furnace for roasting graphite electrode

Technical Field

The invention relates to the technical field of graphite electrode equipment, in particular to a ring type roasting furnace for roasting a graphite electrode and a roasting method.

Background

The graphite electrode is a high-temperature-resistant graphite conductive material which is prepared by using petroleum coke and asphalt coke as aggregates and coal pitch as an adhesive through raw material calcination, crushing and grinding, batching, kneading, molding, baking, impregnation, graphitization and machining, wherein the baking process consumes the longest time, and not only is energy consumed in the baking process, but also crack waste products are easily generated in the baking process of the graphite electrode, so that the production cost is increased.

In the roasting process, additives and other chemical methods are usually added into the graphite electrode to reduce the generation of graphite electrode cracks, the device for roasting the graphite electrode can also be manufactured into a ring shape, so that the graphite electrode is heated more uniformly, although the methods can obviously reduce the generation of the graphite electrode cracks and reduce the quantity of waste products, the existing ring-shaped roasting equipment has low energy utilization rate, a large amount of heat can be dissipated through the side surface of the roasting equipment, in addition, the position of the electrode in the furnace is relatively fixed due to the uneven temperature field in the ring-shaped roasting furnace, so that the quality of the electrode is reduced, and the production cost is increased.

In order to promote the quality of graphite electrode, save the roast cost, need improve current graphite electrode annular roast equipment, how to make graphite electrode be heated evenly, reduce the quantity that the waste product produced, can improve energy utilization moreover, reduction in production cost is the technological problem that people need to solve urgently.

Disclosure of Invention

In order to solve the above problems, the present invention provides a technical solution: the utility model provides a ring type is banked up with fire stove for graphite electrode is banked up with fire, include the furnace body and be used for the fixing device of fixed graphite electrode, the cross section of furnace body is the cylinder structure, the furnace body front side is equipped with and opens closed circular end cover, end cover central point puts and has seven fixing bases around six position evenly distributed of central round, the position that the fixing base corresponds in the furnace body is provided with seven fixing device, graphite electrode cover is established on fixing device, the peripheral distribution of graphite electrode has six cross-sections to be curved first calcination board, be provided with in the middle of adjacent three fixing device and banked up with fire the pole, cross-section and six first calcination boards of six calcination poles around same centre of a circle and the crisscross setting of calcination pole and first calcination board, first banked up with fire the board and pass through the connecting rod and fix in banked up with fire stove side, banked up with fire pole and furnace body rear end fixed connection.

The fixing device comprises a support column, a first support leg and a support plate, wherein one end of the support column is fixed on the end face of the rear side of the furnace body, the other end of the support column is provided with a groove which is clamped with the bulge of the fixing seat, the side face of the support column is uniformly distributed and fixed with six mounting plates through a plurality of link mechanisms, each mounting plate is provided with a second roasting plate, the mounting plates are arranged in parallel with the support column, a plurality of second support legs are uniformly distributed between the adjacent mounting plates, one end of each second support leg is fixedly connected with the support column, the other end of each second support leg is connected with a cavity cylinder body at the inner end of the first support leg in a sliding way, and the second supporting leg is sleeved with a supporting spring, the other end of the first supporting leg is outwards provided with two ends, the two ends of the first supporting leg are rotatably connected with driving wheels, the middle parts of the two ends of the first supporting leg are fixedly connected with a supporting plate through convex blocks, driven wheels are uniformly distributed on the outer side of the supporting plate, and the first supporting leg is connected with the mounting plate through a third oscillating bar.

Each group of link mechanisms comprises a first swing rod and two second swing rods, one end of each of the two second swing rods is hinged with one end of the first swing rod, the other ends of the two second swing rods are hinged with the mounting plate and the support column respectively, the other end of the first swing rod is hinged with the sliding barrel, the sliding barrel slides in a cavity in the support column, the sliding barrel is in threaded connection with a lead screw on a motor rotating shaft, and the motor is fixed in the support column.

Specifically, the graphite electrode roasting step is as follows:

the first step is as follows: opening an end cover, sleeving a graphite electrode to be roasted on a fixing device, starting a motor, enabling a lead screw on the motor to rotate, driving a sliding cylinder to slide, enabling a first swing rod positioned at one end of the sliding cylinder to move towards one side of the motor, driving a second swing rod to swing, pushing a mounting plate to move towards one side of the graphite electrode, then enabling a third swing rod to swing, enabling a first supporting leg to slide relative to a second supporting leg under the combined action of the swing of the third swing rod and the elastic force of a supporting spring, enabling a driving wheel and a driven wheel to be in contact with the graphite electrode, enabling a second roasting plate to synchronously move with the driving wheel, and enabling the second roasting plate to approach towards one side of the graphite electrode;

the second step is that: and (3) roasting, starting a transmission motor, driving a driving wheel to rotate, driving the graphite electrode to rotate, and then starting the first roasting plate, the second roasting plate and the roasting rod to roast the graphite electrode.

Compared with the prior art, the invention has the beneficial effects that: in the process of roasting the graphite electrode, the graphite electrode is roasted by utilizing the first roasting plate, the second roasting plate and the roasting rods which are arranged outside and inside the electrode, and the graphite electrode is uniformly distributed around the outer surface of each roasting rod, so that the roasting rods can roast the graphite electrodes at the periphery at the same time, and the heat loss of the roasting rods is reduced; the driving wheel on the fixing device drives the graphite electrode to rotate, the graphite electrode can be heated more uniformly by combining the simultaneous heating of the inside and the outside of the counter electrode, and meanwhile, the fixing device supports the graphite electrode by using the driving wheel and the driven wheel on the supporting plate, so that the force applied to the graphite electrode by the fixing device is more uniform, namely, the graphite electrode is heated uniformly and stressed uniformly, the crack generation of the graphite electrode is reduced, and the rejection rate and the production cost are reduced; in addition, in the process of fixing the graphite electrode, the second roasting plate for heating the interior of the electrode is synchronously close to the graphite electrode, and the second roasting plate moves inwards to be far away from the graphite electrode in the process of taking down the graphite electrode after roasting is completed, so that the graphite electrode is prevented from colliding with the second roasting plate in the loading and unloading process.

Drawings

FIG. 1 is an exterior elevational view of the main body of the present invention;

FIG. 2 is an inside elevational view of the body of the present invention;

FIG. 3 is a view showing the structure of the portion A-A in FIG. 2 according to the present invention;

FIG. 4 is a front view of the graphite electrode fixed by the fixing device of the present invention;

FIG. 5 is a view showing the structure of the portion B-B in FIG. 4 according to the present invention;

FIG. 6 is an enlarged view of a portion of the portion C of FIG. 4 in accordance with the present invention;

FIG. 7 is a front view of the graphite electrode fixed by the fixing device of the present invention;

FIG. 8 is a view showing the structure of the portion D-D in FIG. 7 according to the present invention.

Reference numbers in the figures: 1, a furnace body; 2, end cover; 3, fixing a base; 4 a first roasting plate; 5, roasting rods; 6 a graphite electrode; 7, a fixing device; 8, supporting columns; 9, mounting a plate; 10 a second baking plate; 11, a slide cylinder; 12 a first swing link; 13 a second swing link; 14 motor; 15 a third swing link; 16 a first leg; 1601 a driving wheel; 17 a support plate; 18 a bump; 19 a second leg; 20 support the spring.

Detailed Description

Referring to fig. 1-8, the present invention provides a technical solution: a ring-type roasting furnace for roasting graphite electrodes comprises a furnace body 1 and a fixing device 7 for fixing graphite electrodes 6, as shown in figure 1, the cross section of the furnace body 1 is of a cylindrical structure, a circular end cover 2 capable of being opened and closed is arranged on the front side of the furnace body 1, seven fixing seats 3 are uniformly distributed at the center position of the end cover 2 and at six positions surrounding the center circle, as shown in figures 2 and 3, seven fixing devices 7 are arranged at positions corresponding to the fixing seats 3 in the furnace body 1, the graphite electrodes 6 are sleeved on the fixing devices 7, six first roasting plates 4 with arc-shaped cross sections are distributed on the periphery of the graphite electrodes 6, a roasting rod 5 is arranged between three adjacent fixing devices 7, the cross sections of the six roasting rods 5 and the six first roasting plates 4 surround the same circle center, the roasting rods 5 and the first roasting plates 4 are arranged in a staggered mode, the first roasting plates 4 are fixed on the side face of the roasting furnace 1 through connecting rods, the baking rod 5 is fixedly connected with the rear end of the furnace body 1.

The fixing device 7 comprises a supporting column 8, a first supporting leg 16 and a supporting plate 17, one end of the supporting column 8 of the fixing device 7 is fixed on the rear end face of the furnace body 1, the other end of the supporting column 8 is provided with a groove which is clamped with a bulge of the fixing seat 3, six mounting plates 9 are uniformly distributed and fixed on the side faces of the supporting column 8 through a plurality of link mechanisms, each mounting plate 9 is provided with a second roasting plate 10, the mounting plates 9 and the supporting column 8 are arranged in parallel, a plurality of second supporting legs 19 are uniformly distributed between the adjacent mounting plates 9, one end of each second supporting leg 19 is fixedly connected with the supporting column, the other end of each second supporting leg is connected with a cavity cylinder at the inner end of the first supporting leg 16 in a sliding manner, a supporting spring 20 is sleeved on each second supporting leg 19, two end heads are arranged at the outer end of the first supporting leg 16, the two end heads of the first supporting leg 16 are respectively and rotatably connected with a driving wheel 1601, the driving wheel 1601 is in transmission connection with a transmission motor, the middle part of the two end heads of the first supporting leg 16 is fixedly connected with the supporting plate 17 through a lug 18, driven wheels are uniformly distributed on the outer side of the supporting plate 17, and the first supporting leg 16 is connected with the mounting plate 9 through a third swing rod 15.

Each group of link mechanisms comprises a first swing rod 12 and two second swing rods 13, the two second swing rods 13 are hinged with one end of the first swing rod 12, the other ends of the two second swing rods 13 are hinged with the mounting plate 9 and the support column 8 respectively, the other end of the first swing rod 12 is hinged with the sliding barrel 11, the sliding barrel 11 slides in a cavity in the support column 8, the sliding barrel 11 is in threaded connection with a screw rod on a rotating shaft of the motor 14, and the motor 14 is fixed in the support column 8.

Specifically, the using steps are as follows:

the first step is as follows: opening the end cover 2, sleeving the graphite electrode 6 to be baked on the fixing device 7, starting the motor 14, rotating a lead screw on the motor 14 to drive the sliding cylinder 11 to slide, driving the second swing rod 13 to swing to push the mounting plate 9 to move towards one side of the graphite electrode 6 by driving the first swing rod 12 positioned at one end of the sliding cylinder 11 to move towards one side of the motor 14, then swinging the third swing rod 15, sliding the first supporting leg 16 relative to the second supporting leg 19 under the combined action of the swinging of the third swing rod 15 and the elastic force of the supporting spring 20, enabling the driving wheel 1601 and the driven wheel to be in contact with the graphite electrode 6, and enabling the second baking plate 10 and the driving wheel 1601 to synchronously move to enable the second baking plate 10 to approach towards one side of the graphite electrode 6;

the second step is that: baking is carried out, a transmission motor is started, the driving wheel 1601 is driven to rotate, the graphite electrode 6 is driven to rotate, and then the first baking plate 4, the second baking plate 10 and the baking rod 5 are started to bake the graphite electrode 6.

While there have been shown and described what are at present considered to be the fundamental principles of the invention and its essential features and advantages, it will be understood by those skilled in the art that the invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.

Claims

1. A method for roasting a graphite electrode by using a ring-shaped roasting furnace is characterized by comprising the following steps: the first step is as follows: opening an end cover, sleeving a graphite electrode to be roasted on a fixing device, starting a motor, enabling a lead screw on the motor to rotate, driving a sliding cylinder to slide, enabling a first swing rod positioned at one end of the sliding cylinder to move towards one side of the motor, driving a second swing rod to swing, pushing a mounting plate to move towards one side of the graphite electrode, then enabling a third swing rod to swing, enabling a first supporting leg to slide relative to a second supporting leg under the combined action of the swing of the third swing rod and the elastic force of a supporting spring, enabling a driving wheel and a driven wheel to be in contact with the graphite electrode, enabling a second roasting plate to synchronously move with the driving wheel, and enabling the second roasting plate to approach towards one side of the graphite electrode;

the second step is that: baking, starting a transmission motor to drive a driving wheel to rotate and drive a graphite electrode to rotate, and then starting a first baking plate, a second baking plate and a baking rod to bake the graphite electrode;

the concrete structure of ring type roasting furnace includes the furnace body and is used for the fixing device of fixed graphite electrode, the cross section of furnace body is the cylinder structure, the furnace body front side is equipped with can open closed circular end cover, end cover central point puts and has seven fixing bases around six position evenly distributed of central round, the position that the fixing base corresponds in the furnace body is provided with seven fixing device, graphite electrode cover is established on fixing device, the peripheral distribution of graphite electrode has six cross-sections to be curved first calcination board, be provided with the pole of roasting up in the middle of adjacent three fixing device, the cross-section of six roasting poles and six first calcination boards are around same centre of a circle and the crisscross setting of roasting pole and first calcination board, first the board of roasting up is fixed in the side of roasting furnace through the connecting rod, the pole of roasting is fixed connection with furnace body rear end.

2. The method for roasting graphite electrodes by using the ring-type roasting furnace as claimed in claim 1, wherein the method comprises the following steps: the fixing device comprises a support column, a first support leg and a support plate, wherein one end of the support column is fixed on the end face of the rear side of the furnace body, the other end of the support column is provided with a groove which is clamped with the bulge of the fixing seat, the side face of the support column is uniformly distributed and fixed with six mounting plates through a plurality of link mechanisms, each mounting plate is provided with a second roasting plate, the mounting plates are arranged in parallel with the support column, a plurality of second support legs are uniformly distributed between the adjacent mounting plates, one end of each second support leg is fixedly connected with the support column, the other end of each second support leg is connected with a cavity cylinder body at the inner end of the first support leg in a sliding way, and the second supporting leg is sleeved with a supporting spring, the other end of the first supporting leg is outwards provided with two ends, the two ends of the first supporting leg are rotatably connected with driving wheels, the middle parts of the two ends of the first supporting leg are fixedly connected with a supporting plate through convex blocks, driven wheels are uniformly distributed on the outer side of the supporting plate, and the first supporting leg is connected with the mounting plate through a third oscillating bar.

3. The method for roasting graphite electrodes in the ring roasting furnace of claim 2, wherein the method comprises the following steps: each group of link mechanisms comprises a first swing rod and two second swing rods, one end of each of the two second swing rods is hinged with one end of the first swing rod, the other ends of the two second swing rods are hinged with the mounting plate and the support column respectively, the other end of the first swing rod is hinged with the sliding barrel, the sliding barrel slides in a cavity in the support column, the sliding barrel is in threaded connection with a lead screw on a motor rotating shaft, and the motor is fixed in the support column.