Splash-proof pneumatic device of thick plate quenching machine

Abstract

The invention discloses a thick plate quenching machine splash-proof pneumatic device which comprises a side blowing assembly and a transverse blowing assembly which are arranged on a roller bed frame, the roller bed frame is arranged between an outlet of a quenching furnace and an inlet of a quenching machine, and the side blowing assembly is fixedly arranged at the end of the side, close to the inlet of the quenching machine, of the roller bed frame. The transverse blowing assembly is fixedly arranged at the end, close to one side of an outlet of the quenching furnace, of the roller way frame. The side blowing assembly comprises angle steel, and a nozzle mounting pipe is detachably mounted on the side wall of the angle steel. The side blowing assembly transversely blows return water on the surface of a steel plate, the transverse blowing assembly seals residual water in the longitudinal direction, double protection of transverse clearing and longitudinal interception is formed, water flow is thoroughly prevented from flowing back to a quenching furnace, and the service life of the quenching furnace is prolonged. The spraying angles of the side nozzles are adjusted through the ball angle connectors, it is guaranteed that water flow is evenly blown in the transverse direction and the longitudinal direction of the steel plate in cooperation with the multi-nozzle layout of the blowing collecting pipe, and performance deviation caused by uneven local cooling is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel rolling process, in particular to a kind of thick plate quenching machine water splash pneumatic device. BACKGROUND

[0002] Roller quenching machine is the core equipment of modernization heat treatment line of medium plate, and is the key heat treatment process means of high value-added high-strength plate product, which is composed of water spraying, blowing, lifting, transmission and hydraulic system. In the heat treatment process of medium plate roller quenching machine, the stability of water spraying cooling system directly affects the organization performance and surface quality of steel plate. In the prior art, there is a obvious water splash problem during thick plate quenching. After high-pressure cooling water is sprayed onto the surface of steel plate, it is easy to form "return water" flowing towards the quenching furnace. If it flows into the furnace, it will damage the structure of the furnace and affect the stability of the furnace temperature. Moreover, the traditional blowing device can only blow in one direction and cannot completely remove residual water. Especially after the oil spots on the edge of thick plate mix with residual water, the product quality is further reduced. In view of the above problems, it is urgent to provide a water splash prevention device that can be blocked and blown directionally to ensure stable and efficient quenching process. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a thick plate quenching machine water splash pneumatic device, which solves the problems of uneven cooling and product quality caused by water splash in the prior art.

[0004] To achieve the above purpose, the present application realizes the following technical scheme: a thick plate quenching machine water splash pneumatic device, comprising a side blowing assembly and a horizontal blowing assembly arranged on a roller bed frame, the roller bed frame is arranged between the outlet of a quenching furnace and the inlet of a quenching machine, the side blowing assembly is fixedly arranged at the end of the roller bed frame close to the inlet of the quenching machine, and the horizontal blowing assembly is fixedly arranged at the end of the roller bed frame close to the outlet of the quenching furnace.

[0005] The side blowing assembly comprises a HW type steel fixedly connected with the side wall of the roller bed frame, a first mounting frame is fixedly arranged at the upper end of the HW type steel, a second mounting frame is vertically arranged above the first mounting frame, an angle steel is fixedly arranged on the second mounting frame, a nozzle mounting pipe is detachably arranged on the side wall of the angle steel, a side nozzle is arranged at one end of the nozzle mounting pipe through a ball angle joint, the other end of the nozzle mounting pipe is connected with a rubber pipe assembly, and the end of the rubber pipe assembly away from the nozzle mounting pipe is connected with a connecting pipe group.

[0006] Preferably, the horizontal blowing assembly comprises a guard plate shell, blowing guard plates are fixedly arranged on both sides of the guard plate shell, the front ends of a pair of blowing guard plates are fixedly connected with the roller bed frame through a pair of mounting plates, a blowing header pipe is horizontally arranged in the guard plate shell, and a plurality of nozzles are arranged on the lower wall of the blowing header pipe along the axial direction.

[0007] Preferably, the gas dynamic waterproof assembly arranged outside the outlet of the quenching furnace comprises a bottom beam, a support fixed on the bottom beam, a pair of air cylinders fixedly connected to the bottom beam on both sides of the support, a pair of hanging ropes mounted on the telescopic ends of the air cylinders, a pulley block arranged on both sides of the top of the support, and a water baffle connected to the top of the pair of hanging ropes through the pulley block and slidably connected to the inner walls of the support on both ends.

[0008] Preferably, the guard plate shell is provided with a pipe clamp for fixing the purging manifold.

[0009] Preferably, the guard plate shell and the two side purging guard plates form a shielding protection structure for blocking water droplets splashed when water flow is sprayed on the surface of the steel plate.

[0010] Preferably, the nozzle mounting pipe is fixed on the angle steel through a pair of U-shaped bolts, the angle steel is provided with through holes for the two ends of the U-shaped bolts to pass through, and nuts are screwed on the two ends of the U-shaped bolts.

[0011] Preferably, the rubber pipe assembly and the connecting pipe group are connected through a double-interface pipe clamp.

[0012] Preferably, the side blowing assembly is used to blow the backflow water flowing along the upper surface of the steel plate from the quenching furnace to the other side of the steel plate.

[0013] Preferably, the transverse blowing assembly is used to blow the backflow water from the quenching furnace to the quenching machine to seal the backflow water on the entire transverse direction of the steel plate.

[0014] Beneficial effects

[0015] The present application provides a thick plate quenching machine waterproof gas dynamic device, which has the following beneficial effects:

[0016] The side blowing assembly blows the backflow water on the surface of the steel plate in the transverse direction, and the transverse blowing assembly seals the residual water in the longitudinal direction, forming a double protection of transverse cleaning and longitudinal interception, completely preventing the backflow of the water flow to the quenching furnace, and adjusting the spraying angle through the ball angle joint, which cooperates with the multi-nozzle layout of the purging manifold to ensure that the water flow is uniformly blown in the transverse and longitudinal directions of the steel plate, avoiding performance deviation caused by local uneven cooling.

[0017] The guard plate shell and the two side purging guard plates are sequentially connected to form a frame type shielding protection structure, effectively blocking the water droplets splashed when the water flow is sprayed on the surface of the steel plate, reducing the phenomenon that the cooling effect is damaged due to splashing water, and being convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The figure is a structural schematic diagram of the present application.

[0019] Figure 2 The figure is a structural schematic diagram of the side blowing assembly of the present application.

[0020] Figure 3 It is the main view structural schematic diagram of the side blowing assembly of the application.

[0021] Figure 4 It is the top view structural schematic diagram of the side blowing assembly of the application.

[0022] Figure 5 It is the structural schematic diagram of the transverse blowing assembly of the application.

[0023] Figure 6 It is the structural schematic diagram of the pneumatic waterproof assembly of the application.

[0024] In the figure: 1, roller stand; 2, side blowing assembly; 201, HW type steel; 202, first mounting frame; 203, second mounting frame; 204, angle steel; 205, nozzle mounting pipe; 206, side nozzle; 207, rubber pipe assembly; 208, connecting pipe group; 209, U-shaped bolt; 210, nut; 211, double-interface pipe clamp; 3, transverse blowing assembly; 301, guard shell; 302, blowing guard; 303, mounting plate; 304, blowing header; 305, pipe clamp; 4, pneumatic waterproof assembly; 401, bottom beam; 402, support; 403, air cylinder; 404, hanging rope; 405, pulley block; 406, water baffle. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0026] Please refer to Figures 1-5 The application provides a technical solution: a thick plate quenching machine waterproof splash pneumatic device, comprising a side blowing assembly 2 and a transverse blowing assembly 3 arranged on a roller stand 1, wherein the roller stand 1 is arranged between a quenching furnace outlet and a quenching machine inlet, the side blowing assembly 2 is fixedly arranged at an end of the roller stand 1 close to the quenching machine inlet, and the transverse blowing assembly 3 is fixedly arranged at an end of the roller stand 1 close to the quenching furnace outlet.

[0027] The side blowing assembly 2 comprises a HW type steel 201 fixedly connected with the side wall of the roller stand 1, a first mounting frame 202 fixedly arranged at the upper end of the HW type steel 201, a second mounting frame 203 vertically arranged above the first mounting frame 202, an angle steel 204 fixedly arranged on the second mounting frame 203, a nozzle mounting pipe 205 detachably arranged on the side wall of the angle steel 204, a side nozzle 206 arranged at one end of the nozzle mounting pipe 205 through a ball angle joint, and a rubber pipe assembly 207 connected with the other end of the nozzle mounting pipe 205.

[0028] By adopting the above technical scheme, when the steel plate enters the roller stand 1 from the quenching furnace and the metal detector detects the head signal, the side blowing assembly 2 is started, the side nozzle 206 blows the backflow water on the surface of the steel plate in the transverse direction, and the transverse blowing assembly 3 blows the residual water from the furnace opening to the quenching machine, so as to prevent the backflow of the water flow, protect the furnace body and the cooling effect, solve the problem of incomplete removal of backflow water in the traditional device, and provide a stable cooling environment for thick plate quenching.

[0029] In the embodiment, the transverse blowing assembly 3 comprises a guard plate shell 301, blowing guard plates 302 are fixedly arranged on the two sides of the guard plate shell 301, the front ends of the blowing guard plates 302 are fixedly connected with the roller stand 1 through a pair of mounting plates 303, a blowing collecting pipe 304 is horizontally arranged in the guard plate shell 301, and a plurality of nozzles are arranged on the lower wall of the blowing collecting pipe 304 in the axial direction.

[0030] By adopting the above technical scheme, the blowing collecting pipe 304 of the blowing assembly is fixed through a pipe clamp 305, the plurality of nozzles uniformly spray air flow in the axial direction to longitudinally blow the residual water droplets on the side, the guard plate shell 301 and the blowing guard plates 302 block the splashed water droplets to prevent secondary pollution of the surface of the steel plate, the residual water is more completely removed, and the uniformity of the cooling of the surface of the steel plate is improved.

[0031] In the embodiment, the transverse blowing assembly 3 comprises a guard plate shell 301, blowing guard plates 302 are fixedly arranged on the two sides of the guard plate shell 301, the front ends of the blowing guard plates 302 are fixedly connected with the roller stand 1 through a pair of mounting plates 303, the blowing collecting pipe 304 is horizontally arranged in the guard plate shell 301, and a plurality of nozzles are arranged on the lower wall of the blowing collecting pipe 304 in the axial direction.

[0032] By adopting the above technical scheme, after the steel plate leaves the furnace door of the quenching furnace, the telescopic end of the air cylinder 403 rises, the lifting rope 404 drives the water baffle 406 to descend by passing through the pulley assembly 405, and the back splash water is prevented from entering the furnace.

[0033] The embodiment is further provided with a pipe clamp 305 for fixing the purging header 304 in the shield shell 301.

[0034] By adopting the above technical solution, the pipe clamp 305 fastens the purging header 304 in the shield shell 301, thereby enhancing the stability of the header.

[0035] The embodiment is further provided with a shield shell 301 and two side purging shields 302 forming a shielding protection structure for blocking the water droplets splashed when the water flow is sprayed on the surface of the steel plate.

[0036] By adopting the above technical solution, the splashing water generated by the high-pressure water flow impacting the surface of the steel plate is blocked by the shield shell 301 and the purging shield 302, thereby preventing the water droplets from falling back to the surface of the steel plate and affecting the cooling effect.

[0037] The embodiment is further provided with a pair of U-shaped bolts 209 for fixing the nozzle mounting pipe 205 on the angle steel 204, the angle steel 204 is provided with through holes for the two ends of the U-shaped bolts 209 to pass through, and nuts 210 are screwed on the two ends of the U-shaped bolts 209.

[0038] By adopting the above technical solution, the nozzle mounting pipe 205 is fixed on the angle steel 204 through the U-shaped bolts, which facilitates disassembly and maintenance.

[0039] The embodiment is further provided with a double-interface pipe clamp 211 for connecting the rubber pipe assembly 207 and the connecting pipe group 208.

[0040] By adopting the above technical solution,

[0041] The embodiment is further provided with a side blowing assembly 2 for blowing the backwater flowing along the upper surface of the steel plate from one side of the steel plate to the other side in the direction of the quenching furnace.

[0042] The embodiment is further provided with a transverse blowing assembly 3 for blowing from the direction of the quenching furnace to the direction of the quenching machine when there is residual water after side blowing, so as to seal the backwater on the entire transverse direction of the steel plate.

[0043] The skilled in the art will connect the parts in the case in sequence, and the specific connection and operation sequence should be referred to the working principle described below, and the detailed connection means is the public known technology in the art, and the working principle and process are mainly introduced below.

[0044] After the steel plate leaves the quenching furnace, the head signal is detected by the metal detector, the side blowing assembly 2 is started, the side nozzles 206 blow the backwater along the transverse direction of the steel plate, the backwater flowing along the upper surface of the steel plate in the direction of the quenching furnace is blown from one side to the other side of the steel plate, and a part of the residual water is left on the surface of the steel plate after the side blowing assembly 2 works. At this time, the transverse blowing assembly 3 is started, the nozzles of the blowing collecting pipe 304 blow the residual water in the longitudinal direction, the splash is blocked by the guard shell 301 and the blowing guard 302, and the blowing assembly continues to run until the tail completely leaves the roller rack 1 and is then turned off, which is convenient to use.

[0045] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, inclusion of an element in a list of elements does not exclude other identical elements not expressly listed or inherent to the process, method, article, or apparatus.

[0046] While embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, combinations, and variations can be made therein and by those skilled in the art without departing from the spirit and scope of the present application, which is defined by the following claims and their equivalents.

Claims

1. A splash-proof pneumatic device for a heavy plate quenching machine, characterized in that, The side blowing assembly (2) and the transverse blowing assembly (3) are arranged on the roller bed frame (1), the roller bed frame (1) is arranged between the outlet of the quenching furnace and the inlet of the quenching machine, the side blowing assembly (2) is fixedly arranged at the end of the roller bed frame (1) near the inlet of the quenching machine, and the transverse blowing assembly (3) is fixedly arranged at the end of the roller bed frame (1) near the outlet of the quenching furnace. The side blowing assembly (2) comprises a HW-shaped steel (201) fixedly connected with the side wall of the roller bed frame (1), a first mounting frame (202) is fixedly arranged at the upper end of the HW-shaped steel (201), a second mounting frame (203) is vertically arranged above the first mounting frame (202), an angle steel (204) is fixedly arranged on the second mounting frame (203), a nozzle mounting pipe (205) is detachably arranged on the side wall of the angle steel (204), a side nozzle (206) is arranged at one end of the nozzle mounting pipe (205) through a ball corner joint, and the other end of the nozzle mounting pipe (205) is connected with a rubber pipe assembly (207); and one end of the rubber pipe assembly (207) is connected with a connecting pipe group (208).

2. A water splash-proof pneumatic device for a heavy plate quenching machine according to claim 1, characterized in that, The transverse blowing assembly (3) comprises a guard shell (301), a pair of blow-off guards (302) are fixedly arranged on the two sides of the guard shell (301), the front ends of the pair of blow-off guards (302) are fixedly connected with the roller bed frame (1) through a pair of mounting plates (303), a blow-off header (304) is horizontally arranged in the guard shell (301), and a plurality of nozzles are arranged on the lower wall of the blow-off header (304) in the axial direction.

3. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 1, wherein The gas-driven waterproof assembly (4) is arranged outside the outlet of the quenching furnace, the gas-driven waterproof assembly (4) comprises a bottom beam (401), a support (402) is fixedly arranged on the bottom beam (401), a pair of gas cylinders (403) are arranged on the two sides of the support (402) and fixedly connected with the bottom beam (401), a pair of hanging ropes (404) are arranged at the telescopic ends of the pair of gas cylinders (403), pulley blocks (405) are arranged on the two sides of the top of the support (402), the pair of hanging ropes (404) are arranged to pass through the pulley blocks (405) and are connected with the top of a water baffle (406), and the two ends of the water baffle (406) are slidably connected with the inner walls of the two sides of the support (402).

4. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 2, wherein The pipe clamp (305) is arranged in the guard shell (301) and used for fixing the blow-off header (304).

5. The water splash-proof pneumatic device of the thick plate quenching machine according to claim 2, wherein The guard shell (301) and the two blow-off guards (302) form a shielding protection structure, which is used for blocking the water droplets splashed when the water flow is sprayed on the surface of the steel plate.

6. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 1, wherein The nozzle mounting pipe (205) is fixed on the angle steel (204) through a pair of U-shaped bolts (209), the angle steel (204) is provided with through holes through which the two ends of the U-shaped bolt (209) pass, and nuts (210) are screwed on the two ends of the U-shaped bolt (209).

7. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 1, wherein The rubber pipe assembly (207) and the connecting pipe group (208) are connected through a double-interface pipe clamp (211).

8. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 1, wherein The side blowing assembly (2) is used for blowing the backflow water flowing along the upper surface of the steel plate from one side of the steel plate to the other side.

9. A water splash proof pneumatic device for a heavy plate quenching machine according to claim 1, wherein The cross-blow assembly (3) is used to blow from the quenching furnace direction to the quenching machine direction when there is residual water left in the side-blowing to seal the return water on the entire transverse direction of the steel plate.

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