CN-224230706-U - Sintering flux feeding system in steel production

Abstract

The utility model discloses a sintering flux feeding system in steel production, which comprises a quicklime bin, wherein a bidirectional electric plugboard is arranged below a bin outlet of the quicklime bin, the bidirectional electric plugboard comprises two movable plugboards, a baffle plate with a strip-shaped structure is fixedly arranged above and below each movable plugboard, a guide channel is arranged below the bidirectional electric plugboard, the guide channel is coaxial with the bin outlet, an outlet of the guide channel is communicated with a feed inlet of a star feeder, a dust cover is arranged below a discharge outlet of the star feeder, the dust cover comprises a dust-proof cylinder, a bag dust collector and a sealing cover which are coaxially arranged from inside to outside in sequence, the dust-proof cylinder is of a cylinder structure with an open lower part, and the sealing cover is of a cuboid structure with the open lower part.

Inventors

• YANG GUOXIAO
• YANG FENGNING
• FENG XING
• PENG YUANFEI
• XUE XIAOYI
• JIA KELIANG
• FENG YANG

Assignees

• 陕西龙门钢铁有限责任公司

Dates

Publication Date

20260512

Application Date

20250423

Claims (4)

1. 1. The sintering flux feeding system in steel production is characterized by comprising a quicklime bin (1) with a conical barrel structure, wherein the inner wall of the quicklime bin (1) is of a smooth transitional curved surface structure, a bidirectional electric inserting plate is arranged below a delivery port of the quicklime bin (1), the bidirectional electric inserting plate comprises two horizontally arranged movable inserting plates (2), the two movable inserting plates (2) are symmetrically arranged relative to the central axis of the quicklime bin (1), a baffle (3) with a strip-shaped structure is fixedly arranged above and below each movable inserting plate (2), and a gap formed between the upper baffle and the lower baffle (3) is 1-2 mm larger than the thickness of the movable inserting plates (2); A guide channel (4) is arranged below the bidirectional electric plugboard, and the guide channel (4) is coaxial with the bin outlet, and the outlet of the guide channel (4) is communicated with the feed inlet of a star feeder (5); A dust cover is arranged below a discharge hole of the star feeder (5), and comprises a dust cylinder (6), a cloth bag dust collector (7) and a sealing cover (8) which are coaxially arranged from inside to outside in sequence, wherein the dust cylinder (6) is of a steel cylinder structure with an open lower part, and the sealing cover (8) is of a cuboid structure with an open lower part; The lime bin comprises two movable plugboards (2) which are used for moving left and right along the horizontal direction to open or close an outlet of the lime bin (1), and a gap between an upper baffle plate and a lower baffle plate (3) which are used for allowing the movable plugboards (2) to pass through in the moving process and scraping materials above the movable plugboards (2) in the passing process.
2. 2. The sintering flux feeding system in steel production according to claim 1, wherein the guide channel (4) has a round lower structure, specifically, a square outlet is formed at the bottom, each side of the square is provided with a triangular side wall in an upward inclined mode, adjacent triangular side walls are connected through an arc surface, namely, a round inlet is formed at the top of the guide channel (4), and an included angle between each triangular side wall and the horizontal is 75 degrees.
3. 3. A sinter flux feed system in steel production as claimed in claim 1 or 2, characterized in that the outer wall of the guide channel (4) is provided with an electrodynamic vibrator (9).
4. 4. A sintered flux feeding system in steel production as claimed in claim 1 or 2, further comprising a rectangular insert plate frame (10), wherein rails are provided along the inner walls around the insert plate frame (10), two movable insert plates (2) are arranged to be embedded in the rails to realize horizontal reciprocating movement, and each of the baffle plates (3) is fixedly arranged on the insert plate frame (10).

Description

Sintering flux feeding system in steel production [ Field of technology ] The utility model belongs to the technical field of sintering production and equipment, and particularly relates to a sintering flux feeding system in steel production. [ Background Art ] In the pre-iron sintering process, quicklime is used as one of important sintering fluxes, and smooth blanking from a quicklime bin is important. If the quick lime bin is not smoothly discharged, the production efficiency and the quality can be seriously affected. The quick lime is easy to be blocked in the bin, and is mainly influenced by factors such as a material flow angle and the like. Therefore, how to ensure the smoothness of the blanking of the quicklime bin becomes a problem to be solved in the iron-making sintering production. In iron-making sintering production, various raw material bins are generally used for storing different materials. The quicklime bin is used for storing quicklime, and the quicklime plays an important role (used as a flux) in the sintering process. The general blanking device may not fully consider the characteristics of quicklime in design, and blanking is easy to be unsmooth. The conventional quicklime bin discharging mode generally relies on gravity, and quicklime naturally falls from the bin top. However, as the quicklime absorbs moisture easily and has problems of material flow angle and the like, the blocking is easy to form in the bin, and the blanking speed is influenced. The traditional quick lime bin mainly comprises a bin body, a discharging opening and the like. The bin body is used for storing quicklime, the feed opening is positioned at the bottom of the bin body, and the quicklime flows out from the feed opening under the action of gravity. However, in actual use, the quicklime is easily accumulated in the bin to block the feed opening due to the large angle of the material flow and the like. In the prior art of sintering production before iron, the discharge hole of the flux bin is of an inverted trapezoid structure, and the internal acute angle is large, so that the blocking phenomenon of the material is easy to occur in the discharge process, and the production continuity and efficiency are greatly influenced. Meanwhile, the original bin body adopts a single-flashboard hydraulic flashboard valve, and the way of opening the valve in one way has the defects in flexibility and reliability. This design may result in unsmooth blanking, requiring frequent manual intervention, increasing labor costs and operational risks. [ utility model ] The utility model aims to provide a sintering flux feeding system in steel production, which aims to solve the problems that the discharging of a flux bin in the existing steel enterprise sintering system is unsmooth and manual intervention is required frequently. The utility model adopts the following technical scheme that the sintering flux feeding system in steel production comprises a quicklime bin with a conical barrel structure, wherein the inner wall of the quicklime bin is of a smooth transitional curved surface structure, a bidirectional electric plugboard is arranged below a bin outlet of the quicklime bin and comprises two horizontally arranged movable plugboards, the two movable plugboards are symmetrically arranged about the central axis of the quicklime bin, a baffle plate with a strip-shaped structure is fixedly arranged above and below each movable plugboard, and a gap formed between the upper baffle plate and the lower baffle plate is 1-2 mm larger than the thickness of the movable plugboard; a guiding channel is arranged below the bidirectional electric plugboard, and is coaxial with the bin outlet; A dust cover is arranged below a discharge hole of the star feeder and comprises a dust-proof cylinder, a bag-type dust remover and a sealing cover which are coaxially arranged from inside to outside in sequence, wherein the dust-proof cylinder is of a steel cylinder structure with an open lower part, and the sealing cover is of a cuboid structure with the open lower part; The device comprises two movable plugboards, an upper baffle and a lower baffle, wherein the two movable plugboards are used for moving left and right along the horizontal direction so as to open or close an outlet of a quicklime bin, and a gap between the upper baffle and the lower baffle is used for allowing the movable plugboards to pass through in the moving process and scraping materials above the movable plugboards in the passing process. Furthermore, the upper round lower structure of the guide channel is characterized in that the bottom of the guide channel is a square outlet, each side of the square is provided with a triangular side wall in an upward inclined mode, the adjacent triangular side walls are connected through an arc surface, namely, a round inlet is formed in the top of the guide channel, and an included angle between each triangular side wall and the horizontal is 75