Pneumatic polishing machine for rapidly polishing crystallizer copper plate

Abstract

The utility model relates to a pneumatic polishing machine for rapidly polishing a crystallizer copper plate, and belongs to the technical field of high-pulling-speed thin slab continuous casting production equipment in the metallurgical industry. According to the technical scheme, a shell (12) is of a closed structure, one end of the shell (12) is connected with a compressed air pipe (9) through a straight joint (8), and a slipknot (6) is rotationally connected to the other end of the shell (12) through a bearing (14); the rotor (7) is arranged in the shell (12), and a rotor shaft (18) is fixedly connected with the slipknot (6); the grinding head (5) is fixed on a grinding head shaft (16); the grinding head shaft (16) is clamped on the slipknot (6) through a loop (15); and the spray head (1) faces the grinding head (5) and is connected with the water pipe (2). The casting powder polishing machine has the advantages that attached casting powder is softened through water in the polishing process, polished casting powder particles are washed away through water flow, and the casting powder particles are prevented from entering the polishing machine body.

Description

Technical Field

[0001] This utility model relates to a pneumatic polishing machine for rapidly grinding copper plates in crystallizers, belonging to the technical field of high-speed thin slab continuous casting production equipment in the metallurgical industry. Background Technology

[0002] The crystallizer is the core component of continuous casting. Molten steel passes through the inner cavity of the crystallizer. The copper plate of the crystallizer transfers the heat of the molten steel to the crystallizer water to form the initial billet shell. The protective slag fills the space between the copper plate of the crystallizer and the billet shell, which plays a role in lubrication and heat transfer. The protective slag is sintered and modified under high temperature and harsh environment and adheres to the copper plate of the crystallizer.

[0003] The high-speed funnel-shaped crystallizer uses unplated copper plates. Prolonged pouring can cause brass to form on the copper plates of the crystallizer. Brass affects the heat transfer of the copper plates and can induce cracks in the cast billet. Therefore, after each pouring stop, the protective slag and brass adhering to the copper plates of the crystallizer need to be ground off to expose the original color of the copper plates.

[0004] Currently, the polishing machines used for grinding copper plates in crystallizers lack handles and can only grind the upper half of the copper plate; the lower half cannot be ground. Furthermore, the protective slag adheres firmly and is not easily removed. After grinding, brass residue often remains, and the removed protective slag particles are carried into the polishing machine body during rotation, causing rotor obstruction and potential jamming. Utility Model Content

[0005] The purpose of this invention is to provide a pneumatic polishing machine for quickly grinding copper plates in crystallizers. During the grinding process, water is used to soften the attached protective slag, and the water flow is used to wash away the protective slag particles, preventing them from entering the polishing machine body and solving the problems existing in the background art.

[0006] The technical solution of this utility model is:

[0007] A pneumatic polishing machine for rapid grinding of copper plates in crystallizers includes a nozzle water pipe, a grinding head, a snap fastener, a rotor, a straight connector, a compressed air pipe, a housing, bearings, a snap fastener, and a grinding head shaft. The housing is a closed structure, with one end connected to the compressed air pipe via a straight connector, and the snap fastener rotatably connected to the other end of the housing via a bearing. The rotor is disposed inside the housing and includes a rotor shaft and blades fixed on the rotor shaft. The rotor shaft is fixedly connected to the snap fastener. The grinding head is fixed on the grinding head shaft, and the grinding head shaft is clamped onto the snap fastener via a snap fastener. The nozzle faces the grinding head and is connected to the water pipe.

[0008] Furthermore, the snap fastener is a conical structure with external threads, one end of which is provided with a central hole that mates with the grinding head shaft, and the rotor shaft is fixed at the other end of the conical structure.

[0009] Further, the grinding head shaft and the rotor shaft are coaxial.

[0010] Further, the loop is screwed on the loop buckle.

[0011] Further, the water pipe and the compressed air pipe are provided with valves.

[0012] The beneficial effects of the present application are as follows:

[0013] (1) The grinding speed is faster and the grinding is cleaner;

[0014] (2) The durability of the grinding head is improved, the blocking phenomenon of the grinder rotor is avoided, and the production cost is reduced;

[0015] (3) The copper plate of the crystallizer is less worn, and the service life of the copper plate is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a structural schematic view of the present application;

[0017] Figure 2 is a schematic view of the present application in use;

[0018] Figure 3 is a planing view of the loop and the water pipe connection of the present application;

[0019] Figure 4 is a schematic view of the loop buckle of the present application;

[0020] Figure 5 is a schematic view of the rotor of the present application;

[0021] Figure 6 is a schematic view of the grinding head of the present application;

[0022] In the figure: 1, nozzle; 2, water pipe; 3, water valve; 4, rubber pipe; 5, grinding head; 6, loop buckle; 7, rotor; 8, straight-through joint; 9, compressed air pipe; 10, compressed air valve; 11, rubber pipe; 12, shell; 13, crystallizer copper plate; 14, bearing; 15, loop; 16, grinding head shaft; 17, rotor blade; 18, rotor shaft; 19, center hole. DETAILED DESCRIPTION

[0023] The present application will be further described by examples in conjunction with the accompanying drawings.

[0024] Referring to the accompanying drawings Figures 1-6A pneumatic polishing machine for rapidly grinding copper plates in a crystallizer includes a nozzle 1, a water pipe 2, a grinding head 5, a snap fastener 6, a rotor 7, a straight connector 8, a compressed air pipe 9, a housing 12, a bearing 14, a slip sleeve 15, and a grinding head shaft 16. The housing 12 is a closed structure, with one end connected to the compressed air pipe 9 via the straight connector 8. The snap fastener 6 is rotatably connected to the other end of the housing 12 via the bearing 14. The rotor 7 is disposed inside the housing 12 and includes a rotor shaft 18 and blades 17 fixed on the rotor shaft 18. The rotor shaft 18 is fixedly connected to the snap fastener 6. The grinding head 5 is fixed on the grinding head shaft 16, and the grinding head shaft 16 is clamped onto the snap fastener 6 via the slip sleeve 15. The nozzle 1 faces the grinding head 5 and is connected to the water pipe 2.

[0025] In this example, refer to the appendix. Figures 1-6 The pneumatic polishing machine includes a nozzle 1, a water pipe 2, a water valve 3, a rubber hose 4, a polishing head 5, a snap fastener 6, a rotor 7, a straight connector 8, a compressed air pipe 9, a compressed air valve 10, a rubber hose 11, a housing 12, a bearing 14, a snap fastener 15, and a polishing head shaft 16, wherein:

[0026] The rotor 7 includes a rotor shaft 18 and blades 17 fixed on the rotor shaft 18, as shown in the attached figure. Figure 3 , 5 As shown.

[0027] The snap fastener 6 is a conical structure with external threads. One end of the cone has a central hole 19 that mates with the grinding head shaft 16. This end of the cone is composed of four symmetrical parts, as shown in the attached figure. Figure 3 , 4 As shown, the four parts can open and clamp the grinding head shaft 16 under the action of the loop 15, wherein the loop 15 has an internal thread that mates with the snap 6.

[0028] During installation, first loosen the loose sleeve 15 on the polishing machine, open the four parts of the snap fastener 6, then insert the grinding head shaft 16 into the center hole 19 of the snap fastener 6, and tighten the loose sleeve 15 to secure the grinding head 5; one end of the water valve 3 is fixed to the water pipe 2, and the rubber hose 4 is inserted into the other end of the water valve 3 for fixation; one end of the compressed air valve 11 is fixed to the compressed air pipe 9, and the rubber hose 11 is inserted into the end of the compressed air valve 10 for fixation; the other end of the compressed air pipe 9 is connected to the housing 12 using a straight connector 8 for fixation; the housing 12 of the pneumatic polishing machine is connected to the snap fastener 6 using a bearing 14; and the rotor shaft 18 in the rotor 7 is mechanically welded to the snap fastener 6.

[0029] See attached document Figure 2 When grinding the copper plate of the crystallizer, the operator holds the compressed air hose 9, keeps the pneumatic grinder vertical, and keeps the grinding head 5 close to the copper plate of the crystallizer to perform left and right grinding.

[0030] When the air grinder works, compressed air comes in from the compressed air pipe 9, pushes the blades 17 in the rotor 7, makes the blades 17 drive the grinding head 5 to run at high speed, makes the rotating grinding head 5 contact the copper plate to polish, and water comes in from the water pipe 2 and is sprayed to the grinding head 5 by the nozzle 1 to soften the attached particles and flush the copper plate.

Claims

1. A pneumatic polisher for rapid resharpening of crystallizer copper plates, characterized in that: The utility model relates to a kind of airless sanding machines, including spray head (1), water pipe (2), abrasive head (5), loose buckle (6), rotor (7), straight-through joint (8), compressed air pipe (9), shell (12), bearing (14), loose sleeve (15) and abrasive head shaft (16), the shell (12) is closed structure, one end of shell (12) is connected with compressed air pipe (9) by straight-through joint (8), and loose buckle (6) is rotatably connected in the other end of shell (12) by bearing (14);Rotor (7) is arranged in shell (12), and the rotor (7) includes rotor shaft (18) and blade (17) fixed on rotor shaft (18), and rotor shaft (18) is fixedly connected with loose buckle (6) together;Abrasive head (5) is fixed on abrasive head shaft (16), and abrasive head shaft (16) is clamped on loose buckle (6) by loose sleeve (15);Spray head (1) is towards abrasive head (5), and spray head (1) is connected with water pipe (2).

2. The pneumatic polisher for quickly resharpening the crystallizer copper plate according to claim 1, characterized in that: The loose buckle (6) is the conical structure with external thread, and one end of the cone is provided with a central hole (19) matched with the abrasive head shaft (16), and the rotor shaft (18) is fixed at the other end of the cone.

3. The pneumatic polisher for quickly resharpening the crystallizer copper plate according to claim 2, characterized in that: The central axes of the abrasive head shaft (16) and the rotor shaft (18) coincide together.

4. The air-powered polisher for quickly resharpening the crystallizer copper plate according to claim 2, characterized in that: The loose sleeve (15) is threadedly connected on the loose buckle (6).

5. The pneumatic polisher for quickly resharpening the crystallizer copper plate according to claim 1, characterized in that: Valves are arranged on the water pipe (2) and the compressed air pipe (9).

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