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CN-224215837-U - Discharge port opening and closing valve for metallurgical submerged arc furnace

CN224215837UCN 224215837 UCN224215837 UCN 224215837UCN-224215837-U

Abstract

The utility model discloses a discharge port opening and closing valve for a metallurgical submerged arc furnace, which comprises a receiving assembly, wherein a discharge pipe is arranged above the receiving assembly, a flange is arranged at the bottom of the material pipe, and a door plate assembly is arranged below the receiving assembly. The utility model is used for a discharge port opening and closing valve of a metallurgical submerged arc furnace, and solves the problems that the existing discharge port opening and closing valve is easy to wear and has unsmooth opening and closing actions.

Inventors

  • HE ZHENYU
  • ZHANG XIAOLONG
  • YIN XINGCHAO
  • WANG LEI

Assignees

  • 西安宏信矿热炉有限公司

Dates

Publication Date
20260508
Application Date
20250428

Claims (9)

  1. 1. The discharge port opening and closing valve for the metallurgical submerged arc furnace is characterized by comprising a receiving assembly (4), wherein a discharge pipe (2) is arranged above the receiving assembly (4), a flange (1) is arranged at the bottom of the material pipe (2), and a door plate assembly (6) is arranged below the receiving assembly (4); The receiving assembly (4) comprises an upper plate (9), wherein the upper plate (9) is a rectangular plate, a through hole is formed in the center of the upper plate (9), a blanking plate a (10), two blanking plates b (13) and a blanking plate c (15) are vertically arranged below the upper plate (9) in a surrounding mode, the blanking plate a (10) and the blanking plate c (15) are oppositely arranged, two blanking plates b (13) are oppositely arranged between the blanking plate a (10) and the blanking plate c (15), a blanking plate a (10), the two blanking plates b (13) and the blanking plate c (15) are integrally formed below the upper plate (9), a blanking channel is formed, and a baffle (12) is obliquely arranged at the lower portion of the blanking channel.
  2. 2. The discharge port opening and closing valve for the metallurgical submerged arc furnace according to claim 1, wherein the blanking plate a (10) comprises a vertical section a, the lower part of the upper plate (9) is integrally connected with the vertical section a, the lower part of the vertical section a is integrally connected with a bending section b, an included angle between the vertical section a and the bending section b is an obtuse angle, and the bottom edge of the bending section b is a horizontal straight line.
  3. 3. The discharge opening and closing valve for the metallurgical submerged arc furnace according to claim 2, wherein the blanking plate c (15) comprises a vertical section c, the lower side of the upper plate (9) is integrally connected with the vertical section c, the vertical section c is opposite to the vertical section a, the length of the vertical section c is not shorter than that of the vertical section a, the lower side of the vertical section c is integrally connected with a first bending section c, an included angle between the vertical section c and the first bending section c is an obtuse angle, the lower side of the first bending section c is integrally connected with a second bending section c, the second bending section c bends towards one side close to the bending section b, the bottom side of the second bending section c is a horizontal straight line, and the bottom surface of the second bending section c is in the same plane with the bending section b.
  4. 4. A tap hole opening and closing valve for a metallurgical submerged arc furnace according to claim 3, wherein a lining plate (11) is laid inside the bending section b, the first bending section c and the second bending section c.
  5. 5. The discharge port opening and closing valve for the metallurgical submerged arc furnace according to claim 4, wherein the shapes of the two blanking plates b (13) are matched with the shapes of the blanking plates a (10) and the blanking plates c (15), the bottom edges of the two blanking plates b (13) are arc-shaped, the supporting plates are integrally arranged at the opposite positions of each blanking plate b (13) and the first bending section c, rotating holes are formed in the upper parts of the two supporting plates relatively, rotating shafts (8) are rotatably sleeved in the two rotating holes, the rotating shafts (8) extend out of the periphery of a blanking channel, the extending parts at two ends of the rotating shafts (8) are respectively sleeved with rotating plates (16), and shaft sleeves (14) are sleeved on the rotating shafts (8).
  6. 6. The discharge port opening and closing valve for the metallurgical submerged arc furnace according to claim 5, wherein the door plate assembly (6) comprises two rotating plates (16), the rotating plates (16) are fan-shaped, the outer circular arcs of the fan-shaped rotating plates (16) are matched with the circular arcs of the bottom edges of the blanking plates b (13), an arc plate (17) is arranged between the bottom edges of the two rotating plates (16), the arc plate (17) is tightly attached to the outlet of the blanking channel, a bottom plate (18) is vertically arranged on the lower surface of the arc plate (17), a counterweight shaft (20) is horizontally arranged on one side of the middle of the bottom plate (18), and a counterweight block (7) is arranged at the end part of the counterweight shaft (20).
  7. 7. The discharge gate start-stop valve for metallurgical submerged arc furnace according to claim 6, wherein the outer walls of the two blanking plates b (13) are provided with a plurality of limiting blocks (5).
  8. 8. The discharge gate start-stop valve for metallurgical submerged arc furnace according to claim 7, characterized in that a plurality of reinforcing ribs b (19) are arranged between the bottom plate (18) and the counterweight shaft (20).
  9. 9. The discharge gate start-stop valve for metallurgical submerged arc furnace according to claim 8, characterized in that the rotating plate (16) is provided with a plurality of rib plates (21) uniformly along the diameter direction.

Description

Discharge port opening and closing valve for metallurgical submerged arc furnace Technical Field The utility model belongs to the technical field of metallurgical submerged arc furnace equipment, and relates to a discharge port opening and closing valve for a metallurgical submerged arc furnace. Background The metallurgical submerged arc furnace is an important device in metallurgical industry, and is mainly used for reducing and smelting raw materials such as ore, carbonaceous reducing agent, solvent and the like, also called an electric arc furnace or a resistance electric furnace, and mainly used for producing important industrial raw materials in metallurgical industry such as ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, ferrosilicomanganese alloy and the like, and chemical raw materials such as calcium carbide and the like. The smelting process is a continuous and long-lasting reaction process, and the temperature in the furnace is usually above 2000 ℃. When the material mixing ratio is adjusted and spare parts are replaced, enough raw materials are needed to be added into the furnace in time, the problem in the furnace is solved rapidly, after the existing submerged arc furnace produces metal, a discharge hole is in a fixed state, and a gate valve is fixedly installed on a discharge pipe of the submerged arc furnace for discharging and unloading control. The gate valve is usually installed in the feed bin lower part, and external devices such as hydro-cylinders or cylinders are needed to be adopted for opening and closing the gate valve, and when the gate valve is opened and closed, the hydro-cylinders or the cylinders apply force to enable the valve plate to be opened or closed, so that the effect of opening and closing is achieved. When the material is required to be added, the charging car moves to the lower part of the outlet of the material pipe, the valve is opened, and the material in the material pipe falls into a hopper of the charging car through the discharging pipe. The charging car moves to the furnace mouth, and pushes the hopper to push the materials into the furnace. In addition, the existing hydraulic/pneumatic valve requires the reciprocating motion of the oil cylinder/air cylinder to provide power, the existing discharge opening and closing valve has a complex structure, the opening and closing valve is frequently worn in the feeding process of the whole blanking pipe, thereby causing material leakage, bringing adverse effects on production, higher maintenance and repair difficulty, increasing production cost and downtime, and the opening and closing actions of the opening and closing valve are unsmooth, when the material layer thickness is larger, the clamping condition of the discharge opening often occurs, the blanking pipe is easy to be blocked, the normal supply of the raw materials is influenced, and further smelting efficiency is reduced. Disclosure of utility model The utility model aims to provide a discharge port opening and closing valve for a metallurgical submerged arc furnace, which solves the problems that the existing discharge port opening and closing valve is easy to wear and has unsmooth opening and closing actions. The utility model adopts the technical scheme that the discharge port opening and closing valve for the metallurgical submerged arc furnace comprises a receiving assembly, a discharge pipe is arranged above the receiving assembly, a flange is arranged at the bottom of the material pipe, and a door plate assembly is arranged below the receiving assembly. The present utility model is also characterized in that, The receiving assembly comprises an upper plate, the upper plate is a rectangular plate, a through hole is formed in the center of the upper plate, a blanking plate a, two blanking plates b and a blanking plate c are vertically arranged below the upper plate in a surrounding mode, the blanking plate a and the blanking plate c are oppositely arranged, the two blanking plates b are oppositely arranged between the blanking plate a and the blanking plate c, the blanking plate a, the two blanking plates b and the blanking plate c integrally form a coaming below the upper plate, a blanking channel is formed, and a baffle is obliquely arranged at the lower portion of the blanking channel. The blanking plate a comprises a vertical section a, the lower part of the upper plate is integrally connected with a vertical section a, the lower part of the vertical section a is integrally connected with a bending section b, an included angle between the vertical section a and the bending section b is an obtuse angle, and the bottom edge of the bending section b is a horizontal straight line. The blanking plate c comprises a vertical section c, the lower part of the upper plate is integrally connected with the vertical section c, the vertical section c is opposite to the vertical section a, the length of the vertical section c is not shorter than that o