Automatic cleaning device for continuous casting cutting slag

Abstract

The utility model relates to an automatic cleaning device for continuous casting cutting slag, which belongs to the technical field of continuous casting machines, is arranged at the lower end of a flame cutting machine in the continuous casting machine, and comprises an inclined side plate, a water pipe and an air blowing pipe, the inclined side plates and the corresponding rails form acute angles clockwise, the water pipes and the air blowing pipes are symmetrically arranged on the flame cutting machine through supports, the water pipes are located above the inclined side plates, water flow in the water pipes rushes to the inclined faces of the inclined side plates, the air blowing pipes are located above the rails without the inclined side plates, and air outlets of the air blowing pipes right face flame cutting tool bits in the flame cutting machine. The device is simple and easy to implement, the cutting slag scattered irregularly is changed into guiding gathering, and the cutting slag is efficiently removed and collected.

Description

Technical Field

[0001] The utility model relates to a cutting slag removing device, in particular to an automatic continuous casting cutting slag removing device, belonging to the technical field of continuous casting machines. Background Art

[0002] During metallurgical continuous casting, flame cutting of continuous casting billets is a reliable and practical cutting method. How to efficiently clean the cutting slag produced during the cutting process is a necessary condition to ensure high-efficiency continuous casting production.

[0003] 9# continuous casting machine is a large-section multi-stream continuous casting machine with high operating rate. However, the cutting slag generated cannot be cleaned in time. The high temperature of the cutting slag will often burn the circuit and lubrication pipeline. At the same time, the cutting slag cannot be effectively removed. Excessive accumulation will cause scratches on the continuous casting billet. The cleaning of the cutting slag does not have the conditions for online cleaning, thus affecting the normal production of the continuous casting machine. With the widespread use of automatic slag blowing technology, the area of ​​​​cutting slag scattering has been further expanded;

[0004] At present, patent CN210172521U discloses a continuous casting machine cutting slag collection device, including a cutting gun, a guide plate with an inclination arranged below the cutting gun, a jet spray gun arranged above the guide plate slope top, and a slag receiving bucket arranged below the guide plate slope bottom, and also includes a support hingedly connected between the top and the guide plate bottom, an upper spring in contact with the bottom of the guide plate slope top, and a lower spring in contact with the bottom of the guide plate slope bottom, the upper spring is fixedly connected to the upper spring seat, and the lower spring is fixedly connected to the lower spring seat. The device is provided with a guide plate, which generates tremors, so that the sliding speed of the cutting slag on the guide plate is effectively controlled, preventing the cutting slag from sticking to the guide plate, and improving the efficiency of collecting the cutting slag;

[0005] Patent CN210024056U is a continuous casting billet flame cutting slag collection device. Support frames are symmetrically arranged on both sides of the slag cleaning vehicle body. Slag chute plates are arranged on each support frame. The two slag chute plates are tilted outward to form an inverted figure eight shape. A nozzle is arranged on the upper part of each slag chute plate. The nozzle is connected to a water pipe. Multiple nozzles tilt toward the slag chute plate to spray water to flush the slag. The cutting slag that falls on the slag chute plate is broken and flushed into the slag bucket, so as to clean the continuous casting billet cutting slag safely and quickly.

[0006] However, the generated cutting slag will splash and scatter irregularly everywhere, and the direction of the cutting slag cannot be well controlled. The eight-shaped guide plates or slag chute plates in the above two patents cannot completely collect the cutting slag. There are many rollers and beams between each stream in the large-section multi-stream continuous casting machine. The above two devices share one for multiple streams, which is not suitable for large-section multi-stream continuous casting machines and cannot be shared.

[0007] Therefore, developing an automatic continuous casting cutting slag removal device that can overcome the above defects has become a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0008] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide a continuous casting cutting slag automatic cleaning device, which is simple and easy to operate, and can guide and gather the irregularly scattered cutting slag, thereby efficiently cleaning and collecting the cutting slag.

[0009] In order to solve the above technical problems, the utility model provides an automatic cleaning device for continuous casting cutting slag, which is arranged at the lower end of a fire cutting machine in a continuous casting machine, and includes an inclined side plate, a water pipe and an air blowing pipe. A pair of tracks are provided at the lower end of the continuous casting machine. The inclined side plate is obliquely arranged on one side of the track. The angle formed clockwise between the inclined side plate and the corresponding track is an acute angle. The water pipe and the air blowing pipe are symmetrically arranged on the fire cutting machine through a bracket. The water pipe is located above the inclined side plate. The water flow in the water pipe rushes toward the inclined surface of the inclined side plate. The air blowing pipe is located above the track where the inclined side plate is not arranged. The air outlet of the air blowing pipe is directly facing the fire cutting head in the fire cutting machine.

[0010] The technical solution further defined in the utility model is:

[0011] Furthermore, in the aforementioned continuous casting cutting slag automatic removal device, a stiffening plate is also provided on one side of the inclined side plate, one end of the stiffening plate is fixedly connected to the inclined side plate, and the other end is fixedly connected to the track, and the inclined side plate, the track and the stiffening plate form a structure with a triangular cross-section.

[0012] Technical effect: The utility model can effectively support the inclined side plate by arranging a stiffening plate. When the slag blowing gas is used to blow the slag, the inclined side plate will be impacted. The use of the stiffening plate can further ensure the stability of the inclined side plate.

[0013] In the aforementioned automatic continuous casting cutting slag removal device, the water outlet of the water pipe is 10 cm higher than the air outlet of the air blowing pipe.

[0014] Technical effect: the water outlet of the water pipe is set higher than the air outlet of the air blow pipe, which effectively prevents the cutting slag from being blown over and sticking to the water pipe.

[0015] In the aforementioned continuous casting cutting slag automatic removal device, compressed air is introduced into the air blowing pipe with a pressure of 0.6MPa.

[0016] In the aforementioned continuous casting cutting slag automatic removal device, granulated water from the fire cutting machine is introduced into the water pipe, and the water pressure is controlled at 0.5MPa.

[0017] The technical effect is to control the pressure of the compressed air and the water in the water pipe to a certain level to ensure the impact force, which is convenient for changing the direction of the cutting slag and also for flushing away the cutting slag smoothly.

[0018] In the aforementioned automatic continuous casting cutting slag removing device, the acute angle formed between the inclined side plate and the corresponding track in a clockwise direction is 50-60°.

[0019] Technical effect: The utility model strictly limits the angle of the included angle. If it is too large, it is not convenient to block the impacting cutting slag, and if it is too small, it is not conducive to guiding the cutting slag to slide down. Selecting 50-60° can ensure that the cutting slag is blocked and the cutting slag can be well guided down, with a good cleaning effect.

[0020] The beneficial effects of the utility model are:

[0021] At present, large-section multi-stream continuous casting machines contain beams, and cutting slag will fall on the beams. The devices in the prior art cannot avoid the cutting slag on the beams, resulting in incomplete collection of the cutting slag. The utility model first uses air blowing to make the cutting slag avoid the left beam, and then uses the inclined side plate of the right beam to collect the cutting slag in advance, effectively preventing the cutting slag from falling on the beam.

[0022] The utility model provides a water pipe above the inclined side plate, which not only cools the inclined side plate, but also eliminates the high temperature of the cutting slag by water cooling, ensuring that the cutting slag flows into the collecting device regularly under the action of the water flow, effectively preventing the cutting slag from damaging the equipment, and flushing the cutting slag for more thorough removal.

[0023] The utility model discloses a water pipe and an air blowing pipe which are both arranged on the fire cutting machine and run synchronously with the fire cutting machine to ensure the correct cutting and blow the cutting slag to the inclined side plate. At the same time, the water pipe flushes the blown cutting slag, and the cleaning efficiency is high.

[0024] The utility model does not adopt two inclined side plates in an inverted shape to guide the cutting slag, which simplifies the structure and reduces the cost. Instead, an inclined side plate is provided on one side and air is blown on the other side. The gas changes the direction of the falling cutting slag and rushes the cutting slag to the inclined side plate for guided gathering, so that all of them rush to the inclined side plate, avoiding the cutting slag from being scattered irregularly and inconvenient to be completely collected. The utility model changes the original irregular scattering of cutting slag into guided gathering and storage. The inclined plate ensures that the cutting slag is blocked from gathering at a fixed place and slides into the collection device under gravity, effectively preventing the cutting slag from adhering to the equipment and being difficult to remove and damaging the equipment. At the same time, the cutting slag is blown to the inclined side plate, and the cutting slag is always in motion, which is convenient for water to wash away and is not easy to stick to the inclined side plate. The cleaning effect is better, which effectively reduces the maintenance workload and avoids the possible harm to people caused by maintenance personnel during dangerous operations. It effectively eliminates the safety risks in maintenance, ensures safe and smooth production and reduces costs for the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic structural diagram of an automatic device for removing continuous casting cutting slag according to an embodiment of the utility model;

[0026] Figure 2 for Figure 1 A side view of a track with an inclined side plate on one side;

[0027] In the figure: 1-fire cutting machine, 2-inclined side plate, 3-water pipe, 4-air blowing pipe, 5-track, 6-stiffening plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them; the technical features involved in the various implementation methods of the utility model described below can be combined with each other as long as they do not conflict with each other. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0029] This embodiment provides a continuous casting cutting slag automatic removal device, the structure of which is as follows Figure 1-2 As shown, it is arranged at the lower end of the fire cutting machine 1 in the continuous casting machine, and is characterized in that it includes an inclined side plate 2, a water pipe 3 and an air blowing pipe 4. A pair of tracks 5 are provided at the lower end of the continuous casting machine. The inclined side plate 2 is inclinedly arranged on one side of the track 5. The angle formed clockwise between the inclined side plate 2 and the corresponding track 5 is an acute angle of 50-60°. The water pipe 3 and the air blowing pipe 4 are symmetrically arranged on the fire cutting machine 1 through a bracket. The water pipe 3 is located above the inclined side plate 2. The water flow in the water pipe 3 rushes to the inclined surface of the inclined side plate 2. The air blowing pipe 4 is located above the track 5 where the inclined side plate 2 is not arranged. The air outlet of the blowing pipe 4 is directly opposite to the fire cutting head in the fire cutting machine 1. The water outlet of the water pipe 3 is 10 cm higher than the air outlet of the air blowing pipe 4. Compressed air is introduced into the air blowing pipe 4 with a pressure of 0.6 MPa. The granulated water brought by the fire cutting machine 1 is introduced into the water pipe 3, and the water pressure is controlled at 0.5 MPa.

[0030] In this embodiment, a stiffening plate 6 is further provided on one side of the inclined side plate 2. One end of the stiffening plate 6 is fixedly connected to the inclined side plate 2, and the other end is fixedly connected to the track 5. The inclined side plate 2, the track 5 and the stiffening plate 6 form a structure with a triangular cross-section.

[0031] During the specific implementation, the workshop technician studio reviewed the drawings and conducted demonstrations many times, and then modified the original cutting area. An inclined side plate 2 was added to the load-bearing beams of the four flows. The load-bearing beams were located below the inclined side plates 2. The cutting slag blowing gas blew the cutting slag onto the inclined side plates 2, and the granulated water produced by the fire cutting was used to rinse and cool the inclined side plates 2. The cutting slag fell directly into the slag bucket placed below under the action of the inclined side plates 2 and the granulated water. At present, this method is effective and no manual cleaning is required on site. It greatly improves the safety of workshop maintenance while improving maintenance efficiency and reducing maintenance labor intensity.

[0032] The device of the utility model is durable, uses the original continuous casting machine structure setting, is easy to manufacture, has low cost, can effectively prevent the damage to the equipment caused by the irregular scattering of cutting slag, enables the generated cutting slag to be automatically cleared, effectively reduces the maintenance workload, and avoids possible harm to people caused by maintenance personnel during dangerous operations, effectively eliminates safety risks in maintenance, ensures safe and smooth production, and reduces costs for the enterprise.

[0033] In addition to the above embodiments, the present invention may also have other implementations. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the present invention.

Claims

1. An automatic cleaning device for continuous casting cutting slag, arranged at the lower end of a continuous casting machine intermediate fire cutting machine (1), characterized in that: The continuous casting machine comprises an inclined side plate (2), a water pipe (3) and an air blowing pipe (4). A pair of rails (5) are provided at the lower end of the continuous casting machine. The inclined side plate (2) is obliquely arranged on one side of the rails (5). The angle formed clockwise between the inclined side plate (2) and the corresponding rail (5) is an acute angle. The water pipe (3) and the air blowing pipe (4) are symmetrically arranged on the fire cutting machine (1) through a bracket. The water pipe (3) is located above the inclined side plate (2). The water flow in the water pipe (3) rushes toward the inclined surface of the inclined side plate (2). The air blowing pipe (4) is located above the rails (5) where the inclined side plate (2) is not arranged. The air outlet of the air blowing pipe (4) faces the fire cutting blade in the fire cutting machine (1).

2. The continuous casting cutting slag automatic removal device according to claim 1 is characterized in that: A stiffening plate (6) is further provided on one side of the inclined side plate (2); one end of the stiffening plate (6) is fixedly connected to the inclined side plate (2), and the other end of the stiffening plate (6) is fixedly connected to the track (5); the inclined side plate (2), the track (5) and the stiffening plate (6) form a structure with a triangular cross-section.

3. The continuous casting cutting slag automatic removal device according to claim 1 is characterized in that: The water outlet of the water pipe (3) is 10 cm higher than the air outlet of the air blowing pipe (4).

4. The continuous casting cutting slag automatic removal device according to claim 1 is characterized in that: Compressed air is introduced into the air blowing pipe (4) at a pressure of 0.6 MPa.

5. The continuous casting cutting slag automatic removal device according to claim 1 is characterized by: The water pipe (3) is filled with granulated water from the fire cutting machine (1), and the water pressure is controlled at 0.5 MPa.

6. The continuous casting cutting slag automatic removal device according to claim 1, characterized in that: The acute angle formed between the inclined side plate (2) and the corresponding track (5) in a clockwise direction is 50-60°.

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