Guide pipe dust removal device for hot rolling line roughing mill unit

Abstract

The utility model relates to a guide pipe dust removal device for a hot rolling line roughing mill unit. The guide pipe dust removal device comprises a water inlet header body, a connecting part, a flexible rubber hose and a nozzle, the nozzles are uniformly distributed at the bottom of the water inlet header body along the axial direction; one end of the water inlet header body is closed, and the other end is open; the connecting part is correspondingly arranged at the opening end of the water inlet header body, and a threaded hole is formed in the outer end of the connecting part; one end of the flexible rubber hose is communicated with the water inlet header body through the threaded hole, and the other end of the flexible rubber hose is connected to a roller body water supply main pipeline. Water on the roller body of the hot rolling strip steel production line can be fully utilized for dust removal, water consumption is effectively reduced, and the dust removal cost is further reduced; and meanwhile, the concentration of iron oxide dust in a rough rolling area can be effectively reduced, the field operation environment is improved, and harm to the body health of field workers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal in hot-rolled strip steel production, in particular to a duct dust removal device for a rough rolling unit of a hot rolling line. Background Art

[0002] The rough rolling unit of the hot rolling production line will generate a large amount of dust during the rolling process, which not only causes serious pollution to the on-site environment, but also causes a certain degree of harm to the health of workers.

[0003] At present, in the existing rough rolling unit dust removal technology, hot rolling production lines mostly use multi-stage pump pressurized dust removal. However, this type of dust removal method consumes a lot of water, has a large loss of dust removal nozzles, is costly, and is difficult to maintain during the production process. Summary of the invention

[0004] In view of the above problems, the purpose of the utility model is to provide a duct dust removal device for the roughing mill of a hot rolling line, which can effectively reduce the iron oxide dust concentration in the roughing area, improve the on-site operating environment, and make full use of the water dust removal of the roller body of the hot rolling strip production line, thereby greatly reducing the water consumption.

[0005] The technical solution adopted by the utility model is as follows:

[0006] The utility model proposes a duct dust removal device for a rough rolling mill of a hot rolling line, comprising a water inlet manifold body, a connecting part, a soft rubber hose and a nozzle; the nozzles are evenly distributed along the axial direction and are arranged at the bottom of the water inlet manifold body; one end of the water inlet manifold body is closed, and the other end is open; the connecting part is correspondingly arranged at the open end of the water inlet manifold body, and a threaded hole is arranged at the outer end of the connecting part; one end of the soft rubber hose is connected to the water inlet manifold body through the threaded hole, and the other end is connected to the roller body water supply main pipeline.

[0007] Furthermore, fixing rings are respectively provided on the outer sides of the circumferences of the left and right ends of the water inlet manifold body.

[0008] Furthermore, the water inlet manifold body is a DN20 pipe.

[0009] Furthermore, the outer diameter of the water inlet manifold body is greater than the outer diameter of the threaded hole.

[0010] Furthermore, the inner diameter of the water inlet manifold body is equal to the inner diameter of the soft rubber tube.

[0011] Furthermore, the edge of the inner hole of the nozzle is smoothly transitioned, and the flat mouth of the nozzle is arranged vertically at an angle of 90°.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model makes full use of the water dust removal of the roller body of the hot rolling strip production line, effectively reduces water consumption, thereby reducing the dust removal cost and achieving good control effect; at the same time, it can effectively reduce the iron oxide dust concentration in the rough rolling area, improve the on-site operating environment, and avoid harm to the health of on-site workers; and the dust removal device has a simple structure and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Among them, the figure markings are: 1-water inlet manifold body; 2-fixing ring; 3-connecting part; 31-threaded hole; 4-soft rubber hose; 5-nozzle. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] See attached Figure 1 The utility model provides a duct dust removal device for a rough rolling mill of a hot rolling line, comprising a water inlet manifold body 1, a connecting portion 3, a soft rubber hose 4 and a nozzle 5.

[0018] In this embodiment, five nozzles 5 are provided, which are installed in sequence at the bottom of the water inlet manifold body 1 at even intervals along the axial direction; the water inlet manifold body 1 is made of a DN20 pipe, and one end is closed and the other end is open; the connecting part 3 is a conical structure, and a threaded hole 31 is opened at its small diameter end, and its large diameter end is fixedly connected to the open end of the water inlet manifold body 1; one end of the soft rubber tube 4 is connected to the small diameter end of the connecting part 3 through the threaded hole 31, and then communicated with the water inlet manifold body 1, and the other end of the soft rubber tube 4 is connected to the main water supply pipeline of the roller body water.

[0019] In this embodiment, fixing rings 2 are fixedly installed on the outer sides of the circumference of the left and right ends of the water inlet manifold body 1.

[0020] When in use, a receiving wedge base is welded on both sides of the exit arch of the rolling mill, with a height of 600mm higher than the rolling center line (i.e. the center line between the upper roller and the lower roller). The water inlet manifold body 1 is correspondingly welded to the receiving wedge bases on both sides through the fixed collars 2 sleeved on both ends; in addition, a water supply branch pipe is opened from the main pipe of the rolling line roller body water supply pipe, and the other end of the soft rubber hose 4 is connected to a branch pipe opened on the main pipe of the roller body water supply pipe.

[0021] In order to increase the pressure of dust removal water, the diameter of the branch pipe is smaller than that of the main pipe, the outer diameter of the water inlet manifold body 1 is larger than the outer diameter of the threaded hole 31 of the connecting part, and the inner diameter of the water inlet manifold 1 is equal to the inner diameter of the connecting part soft rubber tube 4; the edge of the inner hole of the water spray nozzle 5 is smoothly transitioned, and the flat mouth of the water spray nozzle 5 is arranged vertically at an angle of 90°. The width of the inner hole of the flat mouth is 4mm, and the width of the inner holes of the five water spray nozzles 5 is the same. After installation, this device sprays out five vertical fan-shaped water surfaces, which can effectively control the removal of dust.

[0022] Matters not described in detail in this utility model are known technologies.

[0023] The embodiments described above are merely descriptions of preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A duct dust removal device for a hot rolling line roughing mill, characterized in that: The device comprises a water inlet manifold body, a connecting part, a soft rubber hose and a nozzle; the nozzles are evenly distributed along the axial direction and arranged at the bottom of the water inlet manifold body; one end of the water inlet manifold body is closed and the other end is open; the connecting part is correspondingly arranged at the open end of the water inlet manifold body, and a threaded hole is arranged at the outer end of the connecting part; one end of the soft rubber hose is connected to the water inlet manifold body through the threaded hole, and the other end is connected to the roller body water supply main pipeline.

2. The duct dust removal device for a hot rolling line roughing mill according to claim 1, characterized in that: The outer sides of the circumferences of the left and right ends of the water inlet manifold body are respectively provided with fixing rings.

3. The duct dust removal device for a hot rolling line roughing mill according to claim 1, characterized in that: The water inlet manifold body is a DN20 pipe.

4. The duct dust removal device for a hot rolling line roughing mill according to claim 1, characterized in that: The outer diameter of the water inlet manifold body is greater than the outer diameter of the threaded hole.

5. The duct dust removal device for a hot rolling line roughing mill according to claim 4, characterized in that: The inner diameter of the water inlet manifold body is equal to the inner diameter of the soft rubber tube.

6. The duct dust removal device for a hot rolling line roughing mill according to claim 1, characterized in that: The inner hole edge of the nozzle is smoothly transitioned, and the flat mouth of the nozzle is arranged vertically at an angle of 90 degrees.

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