[0021] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.
[0022] The invention provides an electric smelting furnace, such as figure 1 with 2 As shown, the electric smelting furnace includes a furnace body 1 and a plurality of electrodes 13. The top of the furnace body 1 is provided with an inlet 14 and the side wall of the furnace body 1 is provided with a liquid outlet 3 and a plurality of electrodes. A plurality of the electrode holes are arranged at the same height and above the liquid outlet 3, and a plurality of the electrodes 13 are arranged so as to be able to respectively pass through the plurality of electrode holes and extend obliquely downward so as to The furnace body 1 converges to form a high temperature digestion zone 15, and the liquid outlet 3 is set higher than the high temperature digestion zone 15. Among them, the high-temperature digestion zone refers to the area formed by the collection of multiple electrodes 13 in the field of metallurgical electric furnaces, and the collection of multiple electrodes 13 means that the ends of the multiple electrodes located in the metallurgical electric furnace are close to and concentrated but mutually No contact; the electric smelting furnace is suitable for smelting various materials such as metal and non-metal materials.
[0023] Through the above technical solution, the present invention provides an electric smelting furnace. The electrodes are arranged obliquely and extend downward. Compared with the installation method in which the electrodes are arranged horizontally in the prior art, the electric smelting furnace does not change the number of electrodes 13 Under the premise of the formed positional relationship between the high temperature digestion zone and the liquid outlet (for example, the height difference), the height difference between the electrode hole and the liquid outlet can be increased, which is beneficial to the partial or complete sealing of the liquid outlet of the smelting electric furnace In the case of blockage, the storage capacity of the smelting solution is significantly expanded, leaving more buffer time, providing more solution time for the staff, and significantly reducing the risk of smelting solution overflowing through the electrode hole, which is safer and more effective. It is conducive to the formation of a small solution pool during the smelting process, provides convenient conditions for the electrode tip to penetrate the solution pool in a small amount to perform work, improves the stability of the work electricity load, and avoids the occurrence of arc interruption during the operation of the electric furnace. At the same time, in the formed small buffer pool, the electrode consumes carbon and some impurities in the raw materials form a reduction reaction, which is beneficial to improve the product quality, thereby increasing the selection range of raw materials.
[0024] Further, the inclination angle between each electrode 13 and the vertical direction is set to 50°-60°. Under the premise of meeting the requirements of the electrode, the installation stability of the electrode 13 and the electrode hole and The height difference between the liquid outlets is more reasonable in design. Such as figure 1 As shown, the electrodes are arranged as round bars, each electrode 13 penetrates into the furnace body 1 along an oblique downward extending direction, and the inclination angle of the axis direction of each electrode 13 deviating from the vertical direction is set as a, The value range of the inclination angle a is set to 50°-60°, which makes the size of the electrode tip penetrating into the small solution tank more reasonable, further improves the stability of the working electrical load, and avoids the interruption of the electric furnace during operation. The occurrence of arc phenomenon. In order to ensure the installation stability of the electrodes, the electric smelting furnace includes a plurality of electrode mounting units arranged outside the furnace body 1, each of the electrode mounting units includes an electrode holder 11, and each electrode holder 11 supports Fixing each electrode 13 in the part of each electrode 13 outside the furnace body 1 also ensures that the electrode always maintains a fixed inclined angle during the normal operation of the metallurgical electric furnace, which is beneficial to the electric furnace. Stable operation.
[0025] According to the present invention, when the electric smelting furnace is smelting materials, the arc is often broken because the material entering from the top inlet 14 is filled between the multiple electrodes. For example, if the material filled between the electrodes has a relatively large particle size. For large bulk materials, the arc generated by the electrode will pass through the gap formed between the bulk material and multiple electrodes to digest the bulk material. Although it will cause the negative charge fluctuation to drop rapidly, it will soon be able to Digest the bulk material in the high-temperature digestion zone, so that the multiple electrodes return to normal; if the material filled between the electrodes is stacked together with small pieces of too small particle size, these stacked small pieces will be The two electrodes are usually in close contact, and it is difficult to form a gap. As a result, the arc formed by the electrode has almost no permeability, and even causes a complete arc interruption, which affects production. Considering the above problems, the materials used in electric smelting furnaces generally need to be strictly controlled in particle size. However, this affects the selection range of raw material particle sizes, causing many inconveniences during operation of the smelting furnace and reducing production efficiency. In order to expand the selection range of the particle size of the materials used in the electric smelting furnace, the electrode can be set to be able to adjust its own inclination angle. For example, the electrode mounting unit includes an adjuster configured to adjust the position of the electrode holder 11 to adjust the inclination angle of the electrode 13 fixed by the electrode holder 11 with respect to the vertical direction, In order to reasonably adjust the inclination angle of the electrode 13 according to the actual requirements, and under the premise of ensuring the stable operating conditions of the electric smelting furnace, the selection range of the particle size of the material is expanded, so as to maximize the effect.
[0026] Further, the adjuster includes an adjusting mechanism, a walking rail 8 and a driving device 9. The adjusting mechanism is movably connected to the walking rail 8 and is configured to adjust the inclination of the walking rail 8 relative to the vertical direction. Angle, the electrode holder 11 is arranged on the walking track 8 and can be driven by the driving device 9 to reciprocate along the extending direction of the walking track 8, wherein the driving device 9 and the electrode holder can transmit power 地连接。 Ground connection. When in use, the inclination angle of the walking rail 8 is adjusted by the adjustment mechanism. The walking rail 8 whose inclination angle is changed can be driven by the electrode holder 11 to change the inclination angle of the electrode until the electrode is at the optimal inclination angle. At this time, the horizontal distance between the ends of the multiple electrodes located in the electric smelting furnace is bound to change, which adversely affects the stable operation of the electric smelting furnace. In order to ensure the stable operation of the electric smelting furnace, it is necessary to position the multiple electrodes The horizontal distance between the ends in the electric smelting furnace is adjusted to a reasonable range. Specifically, the electrode holder 11 can be driven to reciprocate along the extending direction of the walking track 8 through the driving device 9 to drive the electrode to follow the electrode holder 11 Perform synchronous movement until the end of the electrode located in the electric smelting furnace is in the best position (the best position refers to when the horizontal distance between the ends of the multiple electrodes located in the electric smelting furnace is adjusted to a reasonable range, each Until the end of the electrode is located in the electric smelting furnace), during the reciprocating movement of the electrode holder 11 along the walking track 8, the inclination angle of the electrode will not be affected, that is, the electrode remains at the most Best tilt angle. The specific structure of the electrode holder 11 is not limited. For example, the electrode holder 11 includes an electrode holder walking seat 11a and an electrode holder clamping seat 11b that are connected to each other, and the electrode holder walking seat 11a is configured to be able to travel along a track It is movable and can be fixed on the walking rail 8. The electrode holder clamping seat 11b is used to fix the electrode and keep the length direction of the electrode consistent with the extending direction of the walking rail. Wherein, the driving device 9 can be set as various reasonable devices, for example, figure 1 As shown in the motor 91, at this time, the drive shaft of the motor 91 can be connected to the electrode holder walking base 11a of the electrode holder 11 through the speed reducer 10 to transmit power; or, the driving device 9 is set as figure 2 As shown in the hydraulic cylinder 92, the hydraulic cylinder 92 includes a hydraulic telescopic rod 91a and an electro-hydraulic cylinder 92b that cooperate with each other. The electro-hydraulic cylinder 92b is fixed on the walking track 8, and the hydraulic telescopic rod 91a is held by the electrode of the electrode holder 11 On this basis, in order to facilitate the installation of the electro-hydraulic cylinder 92b, a mounting plate 37 and a mounting seat 38 can be provided. The mounting plate 37 is fixed on the walking track, and the mounting seat 38 is fixed on the On the mounting plate 37, the mounting seat 38 is used for fixing the electro-hydraulic cylinder 92b.
[0027] Such as figure 1 with 2 As shown, the adjusting mechanism includes a fixing frame 6 and an adjusting frame 7. The fixing frame 6 is arranged between the adjusting frame 7 and the furnace body 1 and is hinged to the walking rail 8. The walking rail 8 is hinged and arranged to be able to drive the walking rail 8 to rotate around the hinge point of the walking rail 8 and the fixing frame 6, and the height of the adjusting frame 7 is adjusted to drive the walking rail 8 to go around the walking rail The hinge point of 8 and the fixed frame 6 rotates, thereby changing the inclination angle of the walking rail 8. According to a specific embodiment of the present invention, in order to set the inclination angle between each electrode 13 and the vertical direction to be 50°-60°, such as figure 1 with 2 As shown, the height of the adjusting frame is always higher than the height of the fixed bracket. When in use, by increasing the height of the adjusting frame, the walking track is driven around the hinge point of the walking track 8 and the fixed frame 6. figure 1 Rotating in the clockwise direction as shown increases the inclination angle of the walking track, and then the electrode holder is driven to rotate synchronously with the walking track, which also increases the inclination angle of the electrode until the electrode is rotated to the optimal tilt Of course, it is necessary to adjust the inclination angle of the remaining electrodes at the same time, so that the inclination angle of the remaining electrodes is consistent with the inclination angle of the electrode; at this time, the end of the electrode in the smelting furnace moves down and is in line with other electrodes. The horizontal distance between the ends of the electric smelting furnace is increased. In order to enable the electric smelting furnace to operate stably, the driving device is activated, and the electrode holder 11 is driven by the driving device to move along the extending direction of the walking rail 8 toward the direction of the furnace body. The electrode is driven to move synchronously with the electrode holder 11 until the electrode moves to a position directly below the position of the electrode before the rotation, so as to shorten the horizontal distance between the electrode and the other electrodes. Of course, you need to adjust the remaining electrodes at the same time. The position of the electrode is such that the end of the electrode located in the electric smelting furnace can maintain a reasonable horizontal distance between the end of the other electrode located in the electric smelting furnace. Among them, the adjustment frame 7 can be set to various reasonable structures, for example, the adjustment frame 7 includes such as figure 2 The flower pull adjustment rod 71, the movable support plate 72, the fixed support panel 73 and the hinge seat 74 are shown, wherein the bottom end of the flower pull adjustment rod 71 is hinged with the fixed support panel 73, and the top end of the flower pull adjustment rod 71 is connected to the movable support The middle part of the plate 72 can be movably connected, the bottom end of the movable support plate 72 is hinged to the fixed support panel 73 through the hinge seat 74, and the top end of the movable support plate 72 is movably connected to the walking track. When in use, the specific operation steps for adjusting the inclination angle of the walking track to increase are as follows: First, wrap the flower pull adjustment lever 71 around the hinge between the flower pull adjustment lever 71 and the fixed support panel 73. figure 2 Rotate in the clockwise direction as shown, the flower pull adjustment lever 71 moves upward along the extension direction of the movable support plate 72. At this time, the movable support plate 72 is adjusted around the hinge joint between the movable support plate 72 and the fixed support panel 73 as follows figure 2 Rotate in the clockwise direction as shown, the inclination angle of the walking track increases until the inclination angle of the rotating track increases to the optimal angle, move the flower pull adjustment lever 71 up to the appropriate position of the movable support plate 72 and fix it, Move the movable support plate 72 down to a suitable position of the walking track and fix it; of course, the specific operation of adjusting the inclination angle of the walking track to decrease can refer to the above operation, and will not be repeated.
[0028] Such as figure 1 with 2 As shown, the side wall of the furnace body 1 is arranged in a cylindrical structure extending in the vertical direction, and the side wall of the furnace body 1 includes three electrode holes distributed in the circumferential direction. The electric smelting furnace includes For the three electrodes 13 arranged in the three electrode holes, by setting the furnace body into a cylindrical structure (that is, the furnace type is set to be circular), the rationality of the furnace body structure is optimized, thereby increasing the furnace body. The service life of the body.
[0029] Such as Figure 1-3 As shown, the three electrode holes are equally spaced along the circumference of the furnace body 1. Such as image 3 As shown, the three electrode holes are on the same cross-section of the furnace body 1. On this cross-section, the center angle corresponding to the arc between the centers of any two electrode holes is 120°, so that the electrode The distribution is more uniform, which ensures that the thermal energy distribution in the melting zone in the electric furnace is more uniform, and increases the service life of the electric smelting furnace. Further, such as figure 1 with 2 As shown, each electrode passes through the corresponding electrode hole and runs along as figure 1 The shown obliquely extends downward to enter the furnace body 1. By setting the electrode to extend obliquely downward, it is beneficial to increase the height difference between the electrode hole and the liquid outlet, so as to facilitate the smelting electric furnace to partially or at the liquid outlet In the case of complete blockage, the storage capacity of the smelting solution is significantly expanded, leaving more buffer time, and the risk of smelting solution overflowing through the electrode hole is significantly reduced, with high safety, and it can also form a small solution pool during the smelting process It provides convenient conditions for the electrode tip to penetrate a small amount of the solution pool to perform work, improve the stability of the work electricity load, and avoid the occurrence of arc interruption during the operation of the electric furnace.
[0030] Further, the bottom wall of the furnace body 1 is set in a truncated cone structure, which has a simple structure and saves floor space.
[0031] Further, the electric smelting furnace includes a tiltable device, which is rotatably connected to the furnace body 1, so that the tiltable device drives the furnace body 1 to rotate around a horizontal rotation axis, It is conducive to processing the remaining materials in the electric smelting furnace, which is convenient and fast, reduces labor intensity, saves energy and reduces consumption. Specifically, the tiltable device can be configured with various reasonable structures. For example, the tiltable device includes a motor, a supporting ring 2, a bearing support 4, and a pinion gear 5, wherein the output shaft of the motor passes through a conveyor belt and a pinion gear 5 Power-transmitting connection. The output shaft on the pinion gear 5 passes through the bearing hole on the bearing support 4 and is power-transmissibly connected to the backing ring. The backing ring 2 is sleeved outside the bottom wall of the furnace body in a truncated cone structure. . When in use, the pinion gear is driven to rotate synchronously by the motor, so that the output shaft of the pinion gear drives the trunnion ring 2 to rotate around the axis of the pinion sprocket gear, and then drives the furnace body to rotate synchronously with the trunnion ring 2, thereby It is realized that the furnace body can automatically tilt, wherein the axis of the output shaft of the pinion gear is set to extend in the horizontal direction.
[0032] The preferred embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical concept of the present invention, many simple modifications can be made to the technical solution of the present invention. In order to avoid unnecessary repetition, various possible combinations of the present invention will not be described separately. However, these simple modifications and combinations should also be regarded as the disclosed content of the present invention, and all belong to the protection scope of the present invention.
