Heavy h-shaped steel sawing and slagging device

Abstract

The application discloses a heavy H-shaped steel sawing slag discharging device, which comprises a slag collecting device arranged below a roller way and used for collecting sawing slag and a slag flushing device used for removing the sawing slag collected in the slag collecting device by water flow impact force. The slag collecting device comprises a slag collecting frame arranged on a vertical beam, a convex boss and a flow dividing mechanism which are attached to the vertical beam, and the convex boss and the flow dividing mechanism are arranged in the slag collecting frame and the vertical beam is located between the convex boss and the flow dividing mechanism. The heavy H-shaped steel sawing slag discharging device has the advantages of reasonable structure, reliable operation, convenient maintenance, fire hazard avoidance and the like. Meanwhile, the slag discharging device completely replaces manual slag cleaning work, greatly reduces labor intensity and production cost of workers, and can improve sawing slag removal efficiency.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of metal cutting, and particularly relates to a heavy H-shaped steel sawing slag discharging device. BACKGROUND

[0002] In a heavy H-shaped steel production line, a mobile cold sawing machine is used for cutting H-shaped steel to a fixed size. The mobile cold sawing machine is composed of an upper slide and a lower slide. The lower slide of the sawing machine is installed on the bottom foundation, and the upper slide is placed above the guide rail of the lower slide and can move forward and backward along the guide rail. The saw blade and the upper saw cover of the sawing machine are fixed on the upper slide, and the lower saw cover is fixed on the lower slide.

[0003] During the cutting of the H-shaped steel by the sawing machine, the upper slide drives the saw blade to move forward, and the upper saw cover moves synchronously with the saw blade, but the lower saw cover is always fixed on the lower slide. During the entire cutting process, the lower part of the saw blade is open and unobstructed. When the circular saw blade moves horizontally forward to cut the steel, the sawing slag will fly backward along the tangent direction at the bottom of the circular saw blade. The flying slag will flow to the opening of the lower saw cover, and part of the sawing slag that does not flow horizontally to the lower saw cover will directly splash onto the roller below due to the lack of shielding devices below the saw blade, and finally cannot enter the slag flushing groove and be flushed away. Long-term production will cause serious accumulation of steel slag and wire drawing under the roller. If it is not cleaned regularly, it will have a serious impact on subsequent steel production. However, the cleaning work is limited by the working space and is time-consuming and labor-intensive.

[0004] The existing sawing machine slag discharging device only relies on the centrifugal force of the sawing machine during sawing to throw the slag into the lower saw cover flow guide groove. It is idealized to believe that the slag will completely enter the flow groove, without considering that the slag will splash outside the sawing machine during sawing, causing serious accumulation of slag around the sawing machine. It also does not consider that long and thin strips of slag (300-600mm long and 20mm wide) and spiral coil-shaped long slags (about 100-200mm long) will be produced when thick and heavy H-shaped steel is sawed, which will be seriously blocked by each other and difficult to remove in the flow guide groove. After a long time of production, the slag around the sawing machine and under the roller will accumulate seriously, and the site can only be shut down to organize personnel to clean the slag, which greatly affects the production rhythm.

[0005] Therefore, it is necessary to provide a new slag discharging technology. SUMMARY

[0006] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a heavy H-shaped steel sawing slag discharging device, which aims to improve the sawing slag removal efficiency.

[0007] In order to achieve the above object, the technical scheme adopted by the present application is as follows: a slag discharging device for sawing H-shaped steel, comprising a slag collecting device arranged below a roller bed and used for collecting sawing slag and a slag flushing device used for removing the sawing slag collected in the slag collecting device by water flow impact, the slag collecting device comprises a slag collecting frame arranged on a vertical beam and a boss and a flow dividing mechanism attached to the vertical beam, the boss and the flow dividing mechanism are arranged in the slag collecting frame and the vertical beam is located between the boss and the flow dividing mechanism.

[0008] The flow dividing mechanism comprises a flow dividing cone, the flow dividing cone is a slanting tetrahedron structure, the outer surface of the flow dividing cone comprises a first bottom surface and first, second and third side surfaces connected to the first bottom surface, and the first bottom surface is connected to the slag collecting frame.

[0009] The end portions of the second and third side surfaces are connected to form an edge of the flow dividing cone, the edge is a narrow edge structure and is arranged in an inclined manner, the second and third side surfaces have an included angle therebetween and the included angle is less than 180 degrees.

[0010] The slag collecting frame is fixed on the vertical beam, a vertical beam square hole through which the vertical beam passes is arranged on the slag collecting frame, the vertical beam square hole and the vertical beam are in transition fit, and the distance between the upper end of the edge and the vertical beam is less than the distance between the lower end of the edge and the vertical beam.

[0011] The boss is arranged in an inclined manner, and the boss is located between the lower end of the slag collecting frame and the vertical beam.

[0012] The outer surface of the boss comprises a second bottom surface and an upper arc surface, the second bottom surface is connected to the slag collecting frame, the upper arc surface is a circular arc surface, and the first end surface of the boss is attached to the outer surface of the vertical beam.

[0013] The flow dividing mechanism and the boss are arranged in plurality.

[0014] The slag flushing device comprises a main pipeline and first and second branch pipelines connected to the main pipeline, nozzles are arranged on the first and second branch pipelines, the nozzles arranged on the first and second branch pipelines have different jet directions, and the first branch pipeline is arranged in plurality.

[0015] The main pipeline comprises a straight pipeline and an elbow pipeline connected to one end of the straight pipeline, the straight pipeline and the elbow pipeline have an included angle therebetween and the included angle is an acute angle, the first branch pipeline is connected to the straight pipeline, and the second branch pipeline is connected to the elbow pipeline.

[0016] Multiple nozzles are arranged on the first and second branch pipelines.

[0017] The heavy H-shaped steel saw cutting slag discharge device has the advantages of reasonable structure, reliable operation, convenient maintenance, fire hazard avoidance and the like, and the slag discharge device also completely replaces manual slag cleaning work, greatly reduces labor intensity and production cost of workers, and can improve sawing slag removal efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present specification includes the following drawings, and the contents shown are as follows:

[0019] Figure 1 is a diagonal shaft side view of the heavy H-shaped steel saw cutting slag discharge device after installation;

[0020] Figure 2 is a diagonal shaft side view of the slag collecting frame composition structure of the present application;

[0021] Figure 3 is a diagonal shaft side view of the slag collecting frame fixing method;

[0022] Figure 4 is a diagonal shaft side view of the flow splitting cone;

[0023] Figure 5 is a diagonal shaft side view of the boss structure;

[0024] Figure 6 is a structure diagram of the slag flushing pipeline;

[0025] Figure 7 is an installation diagram of the slag flushing pipeline;

[0026] In the drawings, 1 is a foundation, 2 is a vertical beam, 3 is a cross beam, 4 is a roller bed support, 5 is a roller bed, 6 is a slag collecting frame, 601 is a front side baffle, 602 is a rear side baffle, 603 is a right side baffle, 604 is a bottom plate, 605 is a flow splitting cone, 6051 is a first side surface, 6052 is a first bottom surface, 6053 is a second side surface, 6054 is a third side surface, 6055 is an edge, 606 is a boss, 6061 is an upper arc surface, 6062 is a second bottom surface, 6063 is a first end surface, 6064 is a second end surface, 607 is a bolt mounting hole, 608 is a square hole, 7 is a slag flushing pipeline, 70 is a main pipeline, 701 is a straight pipe, 702 is an elbow pipe, 71 is a first branch pipeline, 710 is a first short pipe, 711 is a second short pipe, 72 is a second branch pipeline, 73 is a nozzle, 8 is a saw seat, 9 is a saw blade, and 10 is a slag flushing groove. DETAILED DESCRIPTION

[0027] The specific embodiments of the present application will be further described in detail below with reference to the drawings, and the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present application, and to facilitate its implementation.

[0028] It should be noted that in the following embodiments, the "first", "second" and "third" do not represent the absolute distinction of structure and / or function, nor represent the execution order, but only for the convenience of description.

[0029] As Figures 1 to 7 shown, the present application provides a heavy H-shaped steel sawing slag discharge device, which comprises a slag collecting device arranged below the roller way and used for collecting sawing slag and a slag flushing device used for removing the sawing slag collected in the slag collecting device by water flow impact force. The slag collecting device comprises a slag collecting frame 6 arranged on a vertical beam 2 and a boss 606 and a flow distribution mechanism attached to the vertical beam 2. The boss 606 and the flow distribution mechanism are arranged in the slag collecting frame 6 and the vertical beam 2 is located between the boss 606 and the flow distribution mechanism.

[0030] Specifically, the heavy H-shaped steel refers to the H-shaped steel with an H value (height) of 800 mm or more, a B value (width) of 400 mm or more, or a t2 value (flange thickness) of 40 mm or more, which is a unique product of the heavy H production line. In view of the problem that the sawing slag generated during sawing of the thick heavy H-shaped steel is easy to accumulate and difficult to clean in the prior art, the present application designs a new type of slag discharge device, which is composed of a slag collecting frame 6 and a slag flushing pipeline 7. The slag collecting frame 6 is composed of front, right and rear side baffles 602 and a bottom plate 604, and a plurality of triangular pyramids and boss 606 structures are arranged on the bottom plate 604. The frame as a whole has a C-shaped collecting basket structure. The slag collecting frame 6 is obliquely installed on the vertical beam below the roller way, which is convenient for widely collecting and quickly discharging the sawing slag. The slag flushing pipeline 7 is composed of a high-pressure water pipeline, a nozzle 73 and the like. The pipeline is installed on the side of the baffle and the slag flushing groove. The high-pressure water can quickly flush away the heavy sawing slag on the slag collecting bottom plate 604. The new type of slag discharge device has the advantages of reliable equipment function and safety in eliminating fire hazards.

[0031] As Figure 1 shown, the slag collecting frame 6 is fixed on the concrete vertical beam 2. A plurality of vertical beams 2 are arranged in two rows. The vertical beams 2 are located on the foundation 1. The cross beam (I-shaped steel) 3 is fixed above the vertical beam 2 by anchor bolts. The roller support 4 is connected above the cross beam 3 by bolts. The roller way 5 is installed on each pair of parallel roller supports 4. The H-shaped steel is placed above the roller way 5. The subsequent roller way 5 motor is energized to run, which can in turn drive the H-shaped steel into the next process. The vertical beam 2 is vertically arranged. The roller way 5 is horizontally arranged. The axis of the roller way 5 is parallel to the first direction. The length direction of the H-shaped steel placed on the roller way 5 is parallel to the second direction. The first direction and the second direction are both horizontal directions and perpendicular to each other. The slag collecting device is installed below the roller way 5 and on the left side of the vertical beam 2. The slag flushing groove 10 is placed below and on the left side of the slag collecting device.

[0032] As Figure 1 andFigure 2 As shown, the slag collecting frame 6 is used for receiving sawing slag, the slag collecting frame 6 is composed of a front baffle 601, a rear baffle 602, a right baffle 603 and a bottom plate 604, the bottom plate 604 is connected with the upright beam 2, the front baffle 601, the rear baffle 602 and the right baffle 603 are arranged on the bottom plate 604 and extend towards the upper side of the bottom plate 604, the front baffle 601 and the rear baffle 602 are oppositely arranged and are in the same straight line parallel to the second direction, the right baffle 603 is located between the front baffle 601 and the rear baffle 602 and is fixedly connected with the front baffle 601 and the rear baffle 602 at both ends thereof. A plurality of bolt mounting holes are formed in the right baffle 603, and a square hole of the upright beam 2 is formed in the bottom plate 604. During on-site installation, the anchor bolts pass through the bolt mounting holes and the left end holes of the upright beam 2 arranged on the right side, and the slag collecting frame 6 is fixed on the upright beam 2 by using the fastening force of the nuts on the anchor bolts; at the same time, the upright beam 2 arranged on the left side passes through the square hole of the upright beam 2, and the square hole of the upright beam 2 and the upright beam 2 are in transition fit, so that the slag collecting frame 6 is not easy to fall in the vertical direction of the ground. The bottom plate 604 is arranged in an inclined manner, the boss 606 and the flow dividing mechanism are fixedly arranged on the bottom plate 604, the boss 606 and the flow dividing mechanism are located between the front baffle 601 and the rear baffle 602, the upper end of the bottom plate 604 is fixedly connected with the right baffle 603, the slag flushing groove 10 is located below the lower end of the bottom plate 604, the inclined direction of the bottom plate 604 and the first direction form an included angle, the included angle is an acute angle, the inclined direction of the bottom plate 604 is perpendicular to the second direction, and the sawing slag is guided to slide downward.

[0033] As Figures 1 to 4As shown, the flow distribution mechanism includes a flow distribution cone 605, which is a slant tetrahedron structure, the outer surface of the flow distribution cone 605 includes a first bottom surface 6052 and a first side surface 6051, a second side surface 6053 and a third side surface 6054 connected with the bottom surface, the first bottom surface 6052 is fixedly connected with the bottom plate 604 of the slag collecting frame 6. The first bottom surface 6052 is a triangular plane, the first side surface 6051, the second side surface 6053 and the third side surface 6054 are triangular planes, the lower ends of the first side surface 6051, the second side surface 6053 and the third side surface 6054 are respectively connected with the three side edges of the first bottom surface 6052, and the upper ends of the first side surface 6051, the second side surface 6053 and the third side surface 6054 are connected into a point. The end portions of the second side surface 6053 and the third side surface 6054 are connected to form an edge 6055 of the flow distribution cone 605, which is a narrow edge structure with a narrow edge surface, and the edge 6055 is arranged obliquely, the second side surface 6053 and the third side surface 6054 have an included angle therebetween, and the included angle is less than 180 degrees. The oblique direction of the edge 6055 is perpendicular to the second direction, the oblique direction of the edge 6055 has an included angle with the first direction, and the included angle is an acute angle, the distance between the upper end of the edge 6055 and the vertical beam abutting against the first side surface 6051 is less than the distance between the lower end of the edge 6055 and the vertical beam abutting against the first side surface 6051, that is, the lower end of the edge 6055 is away from the vertical beam.

[0034] The flow distribution cone 605 with such a structure has a good flow distribution and guiding effect. The flow distribution cone 605 is placed on the upper side of the bottom plate 604 and the right side of the vertical beam 2, and is welded on the bottom plate 604 through the three edges 6055. When sawing the steel, the sawing slag containing steel slag, wire drawing and flushing water is discharged from high to low, and the flow distribution cone 605 can better distribute the steel slag, wire drawing and flushing water, etc. When the long wire drawing passes through the flow distribution cone 605, the edge 6055 (narrow edge) of the flow distribution cone 605 has a narrow edge surface, the long wire drawing is not balanced in weight from front to back, and the wire drawing is difficult to stop in front of the edge 6055 (narrow edge), and at the same time, the wire drawing can be quickly washed away due to the continuous impact of the subsequent flushing water. The structure of the flow distribution cone 605 created in the application has a good flow distribution and guiding effect, and can be applied to the slag discharging device which is difficult to clean the wire drawing.

[0035] As Figure 2 , Figure 3 and Figure 5As shown in the drawings, the boss 606 is a semi-cylindrical structure, the boss 606 is arranged obliquely, and the boss 606 is located between the lower end of the slag collecting frame 6 and the upright beam 2. The outer surface of the boss 606 includes a second bottom surface 6062 and an upper arc surface 6061, the second bottom surface 6062 is connected with the slag collecting frame 6, and the upper arc surface 6061 is a circular arc surface, and the axis of the upper arc surface 6061 is perpendicular to the second direction. The second bottom surface 6062 is fixedly connected with the bottom plate 604, and the two ends of the upper arc surface 6061 in the arc length direction are respectively connected with the two ends of the second bottom surface 6062, and the boss 606 is obliquely extended downward from the upright beam 2 to the lower end edge of the slag collecting frame 6. The boss 606 is placed on the upper side of the bottom plate 604 and the left side of the upright beam 2, and is welded above the bottom plate 604 through the four bottom edges 6055. During the slag flushing process, the steel slag is impacted by the flushing water, and part of the steel slag will be retained on the left side of the upright beam 2, which is a dead angle area, and it is difficult for the flushing water to remove the retained steel slag, the boss 606 can hinder the steel slag from accumulating on the left side of the upright beam 2, thereby ensuring the thoroughness and rapidity of slag removal. The boss 606 is provided with the upper arc surface 6061, which can prevent the wire drawing washed down between the upright beams from colliding with each other to cause blockage, and can also ensure that when partial blockage occurs in the nozzle 73 branch pipe between a certain group of upright beams, the high-pressure water of the remaining branch group can pass over the arc surface to flush away the remaining steel slag.

[0036] As shown in the drawings, Figure 2 , Figure 3 and Figure 5 , the two end faces of the boss 606 in the axial direction are respectively a first end face 6063 and a second end face 6064, the first end face 6063 of the boss 606 is attached to the outer surface of the upright beam 2, and the first end face 6063 is an inclined plane with the left side being lower and the right side being higher. The first end face 6063 can be closely attached to the left side of the upright beam 2, so that there is no gap between the boss 606 and the upright beam 2, and the retention of the steel slag is avoided. The two end edges of the flow dividing cone 605 and the boss 606 in the width direction are respectively aligned with the two end edges of the upright beam 2 in the width direction, and the width direction of the flow dividing cone 605, the boss 606 and the upright beam 2 is parallel to the second direction. The flow dividing mechanism and the boss 606 are provided in multiple numbers, the number of the flow dividing mechanism and the boss 606 is the same as the number of the upright beam 2, all the flow dividing mechanisms and the bosses 606 are respectively located on the same straight line parallel to the second direction, and each upright beam 2 is located between a flow dividing mechanism and a boss 606.

[0037] In this embodiment, as shown in the drawings, Figure 2 , the flow dividing mechanism and the boss 606 are provided in five numbers.

[0038] As shown in the drawings, Figure 1 , Figure 6 and Figure 7As shown, the slag flushing device is installed on the slag collecting frame 6, and the slag flushing device comprises a main pipeline 70, and a first branch pipeline 71 and a second branch pipeline 72 connected with the main pipeline 70, nozzles 73 are arranged on the first branch pipeline 71 and the second branch pipeline 72, and the spray directions of the nozzles 73 arranged on the first branch pipeline 71 and the second branch pipeline 72 are different. The first branch pipeline 71 is provided in plurality, the first branch pipeline 71 is located above the bottom plate 604, and all the first branch pipelines 71 are in the same straight line parallel to the second direction. The high-pressure water sprayed from the nozzles 73 of the first branch pipeline 71 generates a water flow impact force towards the lower slag collecting frame 6, which can flush the sawing slag in the slag collecting frame 6 and make the sawing slag flow downwards. The second branch pipeline 72 is located above the slag flushing groove 10 and at one end of the length direction of the slag flushing groove 10, and the length direction of the slag flushing groove 10 is parallel to the second direction. The high-pressure water sprayed from the nozzles 73 of the second branch pipeline 72 generates a water flow impact force towards the slag flushing groove 10, which pushes the sawing slag in the slag flushing groove 10 to flow towards the opening end of the slag flushing groove 10.

[0039] As shown in Figure 6 , the main pipeline 70 comprises a straight pipeline 701 and an elbow pipeline 702 connected with one end of the straight pipeline 701, and the straight pipeline 701 and the elbow pipeline 702 have an included angle, and the included angle is an acute angle. The first branch pipeline 71 is fixedly connected with the straight pipeline 701, and the second branch pipeline 72 is fixedly connected with the other end of the elbow pipeline 702. The length direction of the straight pipeline 701 is parallel to the second direction, one end of the elbow pipeline 702 is connected with one end of the straight pipeline 701, the second branch pipeline 72 is connected with the other end of the elbow pipeline 702, and the other end of the straight pipeline 701 is connected with the water supply system.

[0040] As shown in Figure 6 , the first branch pipeline 71 has a T-shaped structure, and the first branch pipeline 71 is composed of a first short pipeline 710 and a second short pipeline 711 by welding. One end of the first short pipeline 710 is fixedly connected with the straight pipeline 701, the second short pipeline 711 is fixedly connected with the other end of the first short pipeline 710, the first short pipeline 710 is perpendicular to the second short pipeline 711, the length direction of the second short pipeline 711 is parallel to the second direction, and the nozzles 73 are arranged on the second short pipeline 711.

[0041] As shown in Figure 6 , the second branch pipeline 72 is a single short pipeline and is separately installed at the tail end of the elbow pipeline 702.

[0042] In the embodiment, as shown in Figure 6 , three nozzles 73 are installed on a single first branch pipeline 71; and five nozzles 73 are installed on a single second branch pipeline 72.

[0043] As shown in Figure 7As shown, the fixing of the pipeline of the slag flushing device is in a hanging mode, in the field installation process, first, the first branch pipeline 71 is respectively threaded through each round hole 609 arranged on the right side baffle 603, and then the first branch pipeline 71 is fastened to the left side of the main pipeline 70. It mainly utilizes the firm slag collecting frame 6 to hang the slag flushing pipeline 7, and further realizes the fixed installation of the slag flushing pipeline 7.

[0044] The slag flushing device arranged in the application is provided with a pneumatic valve at the initial end of the slag flushing water pipeline, which is interlocked with the sawing feeding signal, when the valve is opened, the slag flushing water is throttled under the pipeline diameter change, so that the water pressure and flow can flush away the steel slag, and the nozzle 73 arranged is distributed longitudinally and horizontally by the staggered flat spray nozzles, so that the multi-angle spray attack on the wire drawing and the removal of the wire drawing are realized.

[0045] The application is described above in conjunction with the drawings. Apparently, the specific implementation of the application is not limited by the above mode. As long as various non-essential improvements are made by using the method concept and technical scheme of the application, or the above concept and technical scheme of the application are directly applied to other occasions without improvement, they are all within the protection scope of the application.

Claims

1. A heavy H-beam sawing and slag removal device, characterized by: It includes a slag collecting device arranged under the roller and used to collect sawing slag, and a slag flushing device that uses the impact force of water flow to clear the sawing slag collected in the slag collecting device. The slag collecting device includes a slag collecting frame arranged obliquely on the vertical beam, and a boss and a diversion mechanism fitted with the vertical beam. The boss and the diversion mechanism are arranged in the slag collecting frame and the vertical beam is located between the boss and the diversion mechanism. The boss is located between the lower end of the slag collecting frame and the vertical beam.

2. The heavy H-beam sawing and slag removal device according to claim 1 is characterized in that: The diversion mechanism includes a diversion cone, which is an oblique tetrahedron structure. The outer surface of the diversion cone includes a first bottom surface and a first side surface, a second side surface and a third side surface connected to the bottom surface. The first bottom surface is connected to the slag collecting frame.

3. The heavy H-beam sawing and slag removal device according to claim 2, characterized in that: The ends of the second side surface and the third side surface are connected to form an edge of the diverter cone. The edge is a narrow edge structure and is inclined. There is an angle between the second side surface and the third side surface, and the angle is less than 180 degrees.

4. The heavy H-beam sawing and slag removal device according to claim 3, characterized in that: The slag collecting frame is fixed on the vertical beam, and a vertical beam square hole is provided on the slag collecting frame for the vertical beam to pass through. The vertical beam square hole and the vertical beam are transitionally matched, and the distance between the upper end of the edge and the vertical beam is smaller than the distance between the lower end of the edge and the vertical beam.

5. The heavy H-beam sawing and slag removal device according to any one of claims 1 to 4, characterized in that: The boss is arranged in an inclined manner.

6. The heavy H-beam sawing and slag removal device according to claim 5, characterized in that: The outer surface of the boss includes a second bottom surface and an upper arc surface, the second bottom surface is connected to the slag collecting frame, the upper arc surface is a circular arc surface, and the first end surface of the boss is in contact with the outer surface of the vertical beam.

7. The heavy H-beam sawing and slag removal device according to any one of claims 1 to 4, characterized in that: The diversion mechanism and the boss are provided in plurality.

8. The heavy H-beam sawing and slag removal device according to any one of claims 1 to 4, characterized in that: The slag flushing device includes a main pipeline and a first branch pipeline and a second branch pipeline connected to the main pipeline. Nozzles are provided on the first branch pipeline and the second branch pipeline, and the spraying directions of the nozzles provided on the first branch pipeline and the second branch pipeline are different. There are multiple first branch pipelines.

9. The heavy H-beam sawing and slag removal device according to claim 8, characterized in that: The main pipeline includes a straight pipe and a curved pipe connected to one end of the straight pipe. There is an acute angle between the straight pipe and the curved pipe. The first branch pipeline is connected to the straight pipe, and the second branch pipeline is connected to the curved pipe.

10. The heavy H-beam sawing and slag removal device according to claim 8, characterized in that: A plurality of nozzles are provided on the first branch pipe and the second branch pipe.

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