High-pressure phosphorus removal cleaning equipment for bar processing

Abstract

The application relates to the technical field of bar processing, and discloses a high-pressure phosphorus-removing cleaning equipment for bar processing, which comprises a main bin, a regulation and control panel is arranged on the right side of the outer side of the main bin, three layers of annular pipes are arranged in the main bin, three conveyors are arranged at the inlet and outlet of the main bin, twelve uniformly-distributed nozzles are arranged, the nozzles spray straight high-pressure water and atomized water, the phosphorus layer on the surface of a bar body can be fully and uniformly cleaned, the three layers of annular pipe structures are arranged, the nozzle angles of each layer of pipes are different, the phosphorus layer on the surface of the bar body can be more thoroughly cleaned, and the problems that the existing high-pressure water descaling equipment cannot thoroughly remove the phosphorus and some residues are left, thereby affecting the subsequent processing quality are solved.

Description

Technical Field

[0001] This invention relates to the field of bar processing technology, specifically to a high-pressure descaling and cleaning equipment for bar processing. Background Technology

[0002] When steel is oxidized at high temperatures, a dense layer of iron oxide scale (phosphorus scale) forms on its surface. If this scale is not removed before rolling, it will be pressed into the strip surface by the rolls during the rolling process, affecting its surface quality. Residual scale also accelerates roll wear and reduces roll life. If the strip requires pickling, residual scale increases the difficulty of pickling and increases acid consumption. Therefore, the iron oxide scale must be removed from the surface of the billet before rolling. Using the mechanical impact of high-pressure water to remove the scale (high-pressure water descaling) is the most common and effective method.

[0003] High-pressure water must be used to achieve descaling, with a pressure generally between 15-20 MPa. The water quality is usually turbid circulating water, and the water pressure supplied to the descaling pump station by the water treatment system is 0.3 MPa.

[0004] The principle of the high-pressure water descaling system is to provide high-pressure water at a pressure of 18-25 MPa to the descaling device of the rolling mill. High-pressure water is sprayed onto the surface of the hot steel billet that has just come out of the furnace using nozzles. Due to the rapid cooling of the steel billet by the water, the impact force and pushing force formed by the high-pressure water jet, the shear force generated by the different cooling shrinkage rate of the oxide scale layer, and the steam explosion generated by the water penetrating between the hot steel billet and the iron oxide scale, the iron oxide scale on the surface of the steel billet is quickly removed. At the same time, the high-pressure water flow washes away the peeled iron oxide scale in a predetermined direction, thereby achieving the purpose of cleaning the surface of the steel billet.

[0005] Existing high-pressure water descaling equipment suffers from incomplete descaling, leaving some residue that affects the quality of subsequent processing. Therefore, there is an urgent need to invent a high-pressure descaling and cleaning equipment for bar processing to solve the above problems. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies that result in incomplete phosphorus removal and some residue, this invention provides a high-pressure phosphorus removal and cleaning device for bar processing.

[0008] (II) Technical Solution

[0009] To achieve the above-mentioned goal of efficiently cleaning the phosphorus layer on the surface of bar processing and eliminating residue, the present invention provides the following technical solution: a high-pressure dephosphorization cleaning device for bar processing, comprising a main chamber, an adjustment panel on the right side of the outer side of the main chamber, three layers of annular pipes installed inside the main chamber, and three conveyors installed at the inlet and outlet of the main chamber, characterized in that: the three layers of annular pipes include a front layer pipe, a middle layer pipe and a rear layer pipe, each layer of annular pipe is fixedly connected to the main chamber by an upper support and a lower support, and each layer of annular pipe is connected to a water inlet pipe on the left side and an air inlet pipe on the right side.

[0010] Each layer of the annular pipe contains a high-pressure water pipe and a high-pressure air chamber. The high-pressure water pipe is connected to the left-side water inlet pipe, and the high-pressure air chamber is connected to the right-side air inlet pipe.

[0011] Each layer of the annular tube is equipped with twelve nozzles. Each nozzle contains a direct current main pipe. The upper end of the direct current main pipe is connected to a high-pressure water pipe. Openings on both sides of the upper part are connected to the first and second branch auxiliary pipes. The middle of the branch auxiliary pipes on both sides is equipped with a branching hole. The branching hole is connected to an atomizing plate. The atomizing plate is located between the branch auxiliary pipe and the direct current main pipe. The upper part of the atomizing plate has an annular opening near the direct current main pipe that connects to the high-pressure air chamber. The middle of the lower end of the atomizing plate has a small hole that connects to the spray pipe below. The lower end of the spray pipe is the spray nozzle. The lower end of the direct current main pipe is the direct current nozzle. The lower ends of branch auxiliary pipes one and two are branch nozzles.

[0012] The three conveyors include two side conveyors on the left and right and a bottom conveyor in the middle. Each conveyor is connected to the main compartment by a bracket. The bracket has a roller groove, and a conveying roller is installed in the roller groove.

[0013] Preferably, there is a gap between the high-pressure water pipe and each layer of annular pipe, and the pipe is wrapped inside the high-pressure air chamber.

[0014] Preferably, the main compartment has a feed inlet near the front layer pipe and a discharge outlet near the rear layer pipe.

[0015] Preferably, all twelve nozzles of the front tube face the inlet and are at a 45° angle to the vertical plane, all twelve nozzles of the rear tube face the outlet and are at a 45° angle to the vertical plane, and all twelve nozzles of the middle tube face the same vertical plane.

[0016] Preferably, the pressure values ​​of the high-pressure water pipe and the high-pressure air chamber are the same during operation.

[0017] Preferably, the conveyor roller consists of two frustums with an opening in the middle, and is connected to the shaft of the support through the opening in the roller groove.

[0018] Preferably, each layer of annular tubes is provided with a bottom conveyor, and there are four bottom conveyors in total. They are all the same height and the distance between adjacent ones is the same, and they are on the same straight line.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, the present invention provides a high-pressure descaling and cleaning device for bar processing, which has the following beneficial effects:

[0021] 1. The high-pressure descaling and cleaning equipment for bar processing has twelve evenly distributed nozzles that spray direct high-pressure water and atomized water, so that the phosphorus layer on the surface of the bar can be thoroughly and evenly cleaned.

[0022] 2. The high-pressure dephosphorization cleaning equipment for bar processing, by setting a three-layer annular pipe structure with different nozzle angles for each layer, makes the phosphorus layer on the surface of the bar more thoroughly cleaned. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the three-layer water ring arrangement of the present invention;

[0025] Figure 3 This is a schematic diagram of the middle layer water ring structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the nozzle structure of the present invention.

[0027] In the diagram: 10. Main chamber; 11. Upper support; 12. Lower support; 13. Control panel; 14. Bar bottom conveyor; 20. Bar side conveyor; 21. Support; 22. Roller groove; 23. Conveyor roller; 30. Front layer pipe; 31. Water inlet pipe; 32. Air inlet pipe; 33. Nozzle; 331. Direct current main pipe; 332. First branch auxiliary pipe; 333. Second branch auxiliary pipe; 334. Branching hole; 335. Atomizing plate; 336. Spray pipe; 337. Direct current nozzle; 338. Branch nozzle; 339. Spray nozzle; 40. Middle layer pipe; 41. High-pressure water pipe; 42. High-pressure air chamber; 50. Rear layer pipe. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figure 1-3A high-pressure descaling and cleaning device for bar processing includes a main chamber 10, a control panel 13 on the right side of the outer side of the main chamber 10, three layers of annular pipes installed inside the main chamber 10, and three conveyors installed at the inlet and outlet of the main chamber 10. The three layers of annular pipes include a front layer pipe 30, a middle layer pipe 40 and a rear layer pipe 50. Each layer of annular pipe is fixedly connected to the main chamber 10 by an upper support 11 and a lower support 12. Each layer of annular pipe is connected to a water inlet pipe 31 on the left side and an air inlet pipe 32 on the right side.

[0030] Each ring-shaped pipe contains a high-pressure water pipe 41 and a high-pressure air chamber 42. The high-pressure water pipe 41 is connected to the left water inlet pipe 31, and the high-pressure air chamber 42 is connected to the right air inlet pipe 32.

[0031] Each layer of the annular pipe is equipped with twelve nozzles 33. Each nozzle 33 contains a direct current main pipe 331. The upper end of the direct current main pipe 331 is connected to a high-pressure water pipe 41. Openings are provided on both sides of the upper part to connect to the first branch auxiliary pipe 332 and the second branch auxiliary pipe 333. The middle of the branch auxiliary pipes on both sides is provided with a branching hole 334. The branching hole 334 is connected to an atomizing plate 335. The atomizing plate 335 is located between the branch auxiliary pipe and the direct current main pipe 331. The upper end of the atomizing plate 335 near the direct current main pipe 331 has an annular opening that connects to the high-pressure air chamber 42. The lower end of the atomizing plate 335 has a small hole in the middle that connects to the lower spray pipe 336. The lower end of the spray pipe 336 is a spray nozzle 339. The lower end of the direct current main pipe 331 is a direct current nozzle 337. The lower ends of the first branch auxiliary pipe 332 and the second branch auxiliary pipe 333 are branch nozzles 338.

[0032] The three conveyors include two left and right side conveyors 20 and a middle bottom conveyor 14. Each conveyor is connected to the main compartment by a bracket 21. The bracket 21 has a roller groove 22, and a conveying roller 23 is installed in the roller groove 22.

[0033] There are gaps between the high-pressure water pipe 41 and each layer of annular pipe, and it is wrapped inside the high-pressure air chamber 42.

[0034] The main chamber 10 has a feed inlet near the front tube 30, and the main chamber 10 has a discharge outlet near the rear tube 50.

[0035] The twelve nozzles 33 of the front tube 30 all face the feed inlet and are at an angle of 20° to the vertical plane; the twelve nozzles 33 of the rear tube 50 all face the discharge outlet and are at an angle of 20° to the vertical plane; and the twelve nozzles 33 of the middle tube 40 all face the same vertical plane.

[0036] The pressure values ​​of the high-pressure water pipe 41 and the high-pressure air chamber 42 are the same when they are in operation.

[0037] The conveyor roller 23 consists of two truncated cones with an opening in the middle. It is connected to the shaft provided on the bracket 21 through the opening in the roller groove 22.

[0038] Each layer of annular tubes is provided with a rod bottom conveyor 14. There are four rod bottom conveyors 14 in total. They are all the same height and the distance between adjacent ones is the same. They are located on the same straight line.

[0039] In use, the dephosphated rods are fed into the main chamber 10 via three conveyors at the feed inlet. The water pressure of the high-pressure water pipe 41 and the air pressure of the high-pressure air chamber 42 are adjusted via the control panel 13. High-pressure water enters the high-pressure water pipe 41 inside each layer of the annular pipe through the inlet pipe 31, and then is sprayed out through the twelve nozzles 33 of each layer of the annular pipe. The water flow enters the direct water pipe 331 from the high-pressure water pipe 41, and then a portion of the water flow enters the first branch auxiliary pipe 332 and the second branch auxiliary pipe 333 from the direct water pipe 331. A portion of the water entering the first branch auxiliary pipe 332 and the second branch auxiliary pipe 333 enters the atomizing plate 3 through the diversion hole 334. In section 35, the atomizing plate 335 contacts the high-pressure air chamber 42 and is squeezed through the small hole into the spray pipe 336 and then sprayed out through the spray nozzle 339. The remaining water in the direct water pipe 331 is sprayed out from the direct nozzle 337, and the remaining water in the branch auxiliary pipe is sprayed out from the branch nozzles 338 on both sides. After the bar enters the main chamber 10, it first passes through the twelve nozzles of the front layer pipe 30 for dephosphorization, then passes through the twelve nozzles of the middle layer pipe 40 for dephosphorization, and then the twelve nozzles of the rear layer pipe 50 remove the residual phosphorus layer and clean the bar. Finally, the bar comes out through the discharge port, completing the high-pressure dephosphorization process.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure descaling and cleaning device for bar processing, comprising a main chamber (10), wherein a control panel (13) is provided on the right side of the outer side of the main chamber (10), three layers of annular pipes are installed inside the main chamber (10), and three conveyors are installed at the inlet and outlet of the main chamber (10), characterized in that: The three-layer annular pipe includes a front layer pipe (30), a middle layer pipe (40) and a rear layer pipe (50). Each layer of annular pipe is fixedly connected to the main compartment (10) by an upper support (11) and a lower support (12). Each layer of annular pipe is connected to a water inlet pipe (31) on the left side and an air inlet pipe (32) on the right side. Each layer of the annular pipe contains a high-pressure water pipe (41) and a high-pressure air chamber (42). The high-pressure water pipe (41) is connected to the left water inlet pipe (31), and the high-pressure air chamber (42) is connected to the right air inlet pipe (32). Each layer of the annular tube is equipped with twelve nozzles (33), and each nozzle (33) contains a direct current main pipe (331). The upper end of the direct current main pipe (331) is connected to a high-pressure water pipe (41). The upper two sides are provided with openings to connect the first branch auxiliary pipe (332) and the second branch auxiliary pipe (333). The middle of the branch auxiliary pipes on both sides is provided with a branch hole (334) and an atomizing plate (335). The branch hole (334) and the atomizing plate (335) are connected. The atomizing plate (335) is located at the two branch holes. Between the auxiliary flow pipe and the main DC pipe (331), the upper end of the atomizing plate (335) near the main DC pipe (331) has an annular opening that connects to the high-pressure air chamber (42). The lower end of the atomizing plate (335) has a small hole in the middle that connects to the lower spray pipe (336). The lower end of the spray pipe (336) is the spray nozzle (339). The lower end of the main DC pipe (331) is the DC nozzle (337). The lower ends of the first branch auxiliary pipe (332) and the second branch auxiliary pipe (333) are branch nozzles (338). The three conveyors include two rod-side conveyors (20) on the left and right and a rod-bottom conveyor (14) in the middle. Each conveyor is connected to the main compartment by a bracket (21). A roller groove (22) is provided on the bracket (21), and a conveying roller (23) is provided in the roller groove (22). There is a gap between the high-pressure water pipe (41) and each layer of annular pipe and it is wrapped inside the high-pressure air chamber (42); The main chamber (10) has an inlet near the front layer pipe (30) and an outlet near the rear layer pipe (50). The twelve nozzles (33) of the front tube (30) are all facing the feed inlet and are at an angle of 45° to the vertical plane; the twelve nozzles (33) of the rear tube (50) are all facing the discharge outlet and are at an angle of 45° to the vertical plane; and the twelve nozzles (33) of the middle tube (40) are all facing the same vertical plane. The pressure values ​​of the high-pressure water pipe (41) and the high-pressure air chamber (42) are the same when they are in operation; The conveying roller (23) consists of two truncated cones with an opening in the middle. It is connected to the shaft provided on the bracket (21) in the roller groove (22) through the opening.

2. The high-pressure descaling and cleaning equipment for bar processing according to claim 1, characterized in that: Each layer of the annular tube is provided with a rod bottom conveyor (14). There are four rod bottom conveyors (14) in total. They are all the same height and the distance between adjacent ones is the same. They are on the same straight line.

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