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CN-122015485-A - Low-temperature carbon furnace and furnace body reconstruction method

CN122015485ACN 122015485 ACN122015485 ACN 122015485ACN-122015485-A

Abstract

The application discloses a low-temperature carbon furnace and a furnace body transformation method, comprising a furnace body, wherein the furnace body is used for heating and smelting metal, a hanger component is connected to the side edge of the furnace body, an adjustable drainage component is arranged on the side edge of the furnace body, the adjustable drainage component comprises a base, a slideway is arranged at the upper end of the base, a sliding block is arranged in the slideway, a turntable is arranged at the upper end of the sliding block, the turntable is in transmission connection with a first driving component, the upper end of the turntable is connected with the bottom end of a stand column, namely the bottom end of the stand column is in rotary connection with the upper end face of the sliding block through the turntable, the upper end of the stand column is connected with the bottom face of a drainage groove, the drainage groove is in an inclined arrangement, the lower end of the drainage groove extends to the upper part of a furnace body opening, the side wall of the sliding block is connected with the telescopic end of a hydraulic telescopic rod, and the blanking angle is adjusted when the drainage groove is used for guiding materials, so as to reduce the impact of smelting materials on the furnace bottom to prevent the furnace body from being damaged, and the furnace body transformation method is also disclosed.

Inventors

  • FENG DONGDONG
  • YANG YANAN
  • CHEN JUNPING
  • Qiao Jiashuai

Assignees

  • 内蒙古日升智博冶金有限责任公司

Dates

Publication Date
20260512
Application Date
20260324

Claims (9)

  1. 1. A low temperature carbon furnace, comprising: The furnace body (1), the said furnace body (1) is used for carrying on the heating smelting to the metal; the adjustable drainage component is arranged at the side edge of the furnace body (1) and used for guiding the molten materials into the furnace body (1); The adjustable drainage assembly includes: A base (21) provided with a slideway (22); the sliding block (23) is slidably arranged in the slideway (22) and is connected with the telescopic end of the hydraulic telescopic rod (26) so as to linearly move along the slideway (22); The turntable (24) is rotatably arranged on the sliding block (23) and is in transmission connection with a rotary driving assembly; The rotary driving assembly comprises a second motor arranged in a mounting groove (231) of the sliding block (23), the second motor is in transmission connection with a transmission gear (232), and the transmission gear (232) is meshed with a gear ring arranged on the outer wall of the turntable (24); The bottom end of the upright post (25) is fixedly connected with the rotary table (24), the top end of the upright post is connected with the bottom of a drainage groove (3), the drainage groove (3) is obliquely arranged, and the lower end of the upright post extends to the upper part of the opening of the furnace body (1); in the process of injecting molten materials into the furnace body (1) through the drainage groove (3), the linear movement of the sliding block (23) is matched with the rotary movement of the rotary table (24), and the lower end of the drainage groove (3) is driven to continuously move in a two-dimensional plane above an opening of the furnace body (1), so that the falling point of the molten materials at the bottom of the furnace body (1) is dynamically changed, and continuous impact on the same position of the furnace bottom is avoided.
  2. 2. The low-temperature carbon furnace as claimed in claim 1, further comprising a hanger assembly, wherein the hanger assembly comprises a cross beam (41) and connecting rods (42) arranged at two ends of the cross beam, the two connecting rods (42) are respectively connected with the outer side wall of the furnace body (1), and a hanging ring is arranged at the upper end of the cross beam (41).
  3. 3. The low-temperature carbon furnace according to claim 2, wherein the connecting rod (42) is rotatably connected with the side wall of the furnace body (1) through a first rotating shaft, a lock catch (5) is arranged on the upper edge of the furnace body (1), and the lock catch (5) is rotatably connected with the upper edge of the furnace body (1) through a second rotating shaft.
  4. 4. A low temperature carbon furnace according to claim 3, wherein the first rotating shaft is in transmission connection with the first motor, and the first rotating shaft is driven by the first motor to drive the furnace body (1) to deflect.
  5. 5. The low-temperature carbon furnace according to claim 1, wherein the drainage groove (3) is detachably connected with the upper end of the upright post (25).
  6. 6. The low-temperature carbon furnace according to claim 1, wherein a limit rod (31) is arranged at the lower part of the lower end of the drainage groove (3), and the limit rod (31) is a telescopic rod.
  7. 7. The low-temperature carbon furnace according to claim 1, wherein the bottom surface of the furnace body (1) is provided with support columns (11).
  8. 8. Cryogenic carbon furnace according to claim 2, characterized in that the hanger assembly is provided with a non-contact level sensor on the cross beam (41).
  9. 9. A method for reforming a furnace body of a low-temperature carbon furnace as defined in any one of claims 1 to 8, comprising: s1, removing residual slag and metal blocks in the furnace to expose an original furnace body steel plate, and checking whether the furnace body is deformed or cracked or not; s2, laying magnesia bricks on the bottom and the inner wall of the furnace to form a basic protection layer; s3, introducing molten slag into the furnace body (1) by utilizing the adjustable drainage component, and controlling the outlet of the drainage groove (3) to continuously move in a two-dimensional plane above an opening of the furnace body (1) through the linear movement of the sliding block (23) and the rotary movement of the rotary table (24) in the drainage process, so that the molten slag is uniformly spread on the surface of the basic protective layer; S4, inserting a vibrator into the slag layer to perform compaction when the slag is in a plastic state, discharging bubbles, improving the compactness and the overall strength of the slag layer, and naturally cooling and solidifying the slag in the furnace after the compaction is completed to form a firm furnace lining protection layer; and S5, after cooling, checking whether the surface of the furnace lining is flat, cracks or hollows exist, and repairing the local hollows by using molten slag.

Description

Low-temperature carbon furnace and furnace body reconstruction method Technical Field The invention belongs to the technical field of low-temperature carbon furnaces, and particularly relates to a low-temperature carbon furnace and a furnace body transformation method. Background A low temperature carbon furnace, also known as a shaft furnace, is a smelting plant that utilizes carbonaceous reducing agents (e.g., coke, coal) to reduce metal oxides to crude metal at relatively "low" temperatures, typically between 800 ℃ and 1350 ℃ relative to a blast furnace in ferrous metallurgy (hearth temperatures up to 1500-1700 ℃). A problem encountered in the use of low temperature carbon furnaces is that conventional stationary launders are a conventional means of introducing molten metal or high temperature slag into the furnace. However, as the position of the discharge hole of the drainage groove is fixed, high-temperature molten materials (such as molten metal and reducing slag) continuously impact the same area of the inner wall or the bottom of the hearth at a high flow rate under the action of gravity, the flowing molten materials have strong mechanical scouring action on refractory materials or furnace walls, softened material particles are continuously taken away to form pits or grooves, so that the local refractory layers of the furnace body are rapidly thinned and fall off, and even the metal furnace shell is directly burnt, thereby causing the safety accident of leakage of the high-temperature molten materials. Disclosure of Invention The application provides a low-temperature carbon furnace, which can reduce the impact of smelting materials on the furnace bottom by adjusting the blanking angle when the material is led to the drainage groove so as to prevent the furnace body from being damaged. In order to achieve the above purpose, the present invention provides the following technical solutions: in one aspect, the application provides a low-temperature carbon furnace, which comprises a furnace body, wherein the furnace body is used for heating and smelting metal, a hanger component is connected to the side edge of the furnace body, an adjustable drainage component is arranged on the side edge of the furnace body, the adjustable drainage component comprises a base, a slide way is arranged at the upper end of the base, a slide block is arranged in the slide way, a turntable is arranged at the upper end of the slide block, the turntable is in transmission connection with a first driving component, the upper end of the turntable is connected with the bottom end of a stand column, namely the bottom end of the stand column is in rotation connection with the upper end face of the slide block through the turntable, the upper end of the stand column is connected with the bottom surface of a drainage groove, the drainage groove is in an inclined arrangement, the lower end of the drainage groove extends to the upper part of an opening of the furnace body, and the side wall of the slide block is connected with the telescopic end of a hydraulic telescopic rod. In one embodiment of the application, the hanger assembly comprises a cross beam, connecting rods are arranged at two ends of the cross beam, the two connecting rods are respectively connected with the outer side wall of the furnace body, and a hanging ring is arranged at the upper end of the cross beam and used for being matched with a hook for hanging the lifting device. In one embodiment of the application, the connecting rod is rotatably connected with the side wall of the furnace body through a first rotating shaft, the upper edge of the furnace body is provided with a lock catch, and the lock catch is rotatably connected with the upper edge of the furnace body through a second rotating shaft. In one embodiment of the application, the first rotating shaft is in transmission connection with the first motor, and the first motor drives the first rotating shaft to drive the furnace body to deflect. In one embodiment of the application, the drainage groove is detachably connected with the upper end of the upright post. In one embodiment of the application, a limiting rod is arranged at the lower part of the lower end of the drainage groove, and the limiting rod is a telescopic rod piece. In one embodiment of the application, the first driving assembly comprises a second motor, the second motor is arranged in the mounting groove of the sliding block, the second motor is in transmission connection with the transmission gear, the transmission gear is meshed with the gear ring on the outer wall of the turntable, and the transmission gear is driven to rotate by the second motor so as to drive the turntable to rotate. In one embodiment of the application, the bottom surface of the furnace body is provided with a support column. In one embodiment of the application, a non-contact liquid level sensor is provided on the cross beam of the hanger assembly. In another aspec