Cutting nozzle capable of rapidly reducing notch of continuous casting steel

Abstract

The utility model discloses a cutting nozzle capable of quickly reducing the notch of continuous casting steel, which belongs to the technical field of steel cutting, and comprises a cutting nozzle body, a mixing component and an air outlet component, the cutting nozzle body comprises a cutting nozzle main body, the top of the cutting nozzle main body is provided with an air inlet hole, and the cutting nozzle main body is externally connected with an operating piece; the mixing assembly comprises a flow equalizing plate and a mixing cavity, and the flow equalizing plate is connected into the air inlet hole; according to the utility model, fuel gas and oxygen penetrate through the flow equalizing plate through the gas inlet hole and then are uniformly mixed together in the mixing cavity, and then the mixed gas can penetrate through the first gas outlet hole, the plurality of second gas outlet holes and the plurality of third gas outlet holes at a high speed; gas sprayed out from the second inclined air outlet holes and the third inclined air outlet holes can be gathered in a crossed mode at the position below the first air outlet holes, so that flames burning at the gathering position can rapidly cut steel, and the gathered flames can reduce kerfs of a steel plate.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steel cutting technical field, concretely relates to a cutting nozzle that is fast and can make continuous casting steel cut smaller. BACKGROUND

[0002] In the cutting process of continuous casting steel, cutting nozzle needs to be used for cutting, but the gas in the cutting nozzle is shot horizontally, which causes the fire to be not concentrated, not only makes the cutting gap large, and the cutting speed is not high, so a cutting nozzle that is fast and can make continuous casting steel cut smaller is needed to solve the above problems. UTILITY MODEL CONTENTS

[0003] The utility model discloses a cutting nozzle that is fast and can make continuous casting steel cut smaller, to solve the problem in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme: a cutting nozzle that is fast and can make continuous casting steel cut smaller, including cutting nozzle body, mixed component and air outlet component, the cutting nozzle body includes cutting nozzle main body, the top of cutting nozzle main body is provided with air inlet hole, and the operation piece is connected outside cutting nozzle main body.

[0005] The mixed component includes flow equalizing plate and mixing cavity, the flow equalizing plate is connected in the air inlet hole, and the mixing cavity is arranged in the cutting nozzle main body.

[0006] The air outlet component includes first air outlet hole, a plurality of second air outlet holes and a plurality of third air outlet holes, the third air outlet hole is arranged at the middle position of the bottom of cutting nozzle main body, a plurality of second air outlet holes are arranged at the stepped position below cutting nozzle main body, and a plurality of third air outlet holes are arranged at the stepped position above cutting nozzle main body.

[0007] As a preferred scheme, the shape of the operation piece is a regular hexagon, the part of the cutting nozzle main body above the operation piece is a cylindrical pipe, and the part of the cutting nozzle main body below the operation piece is a stepped cone.

[0008] As a preferred scheme, the flow equalizing plate is composed of a large hole in the middle and a plurality of small holes outside the large hole, and the large hole is directly above the first air outlet hole.

[0009] As a preferred scheme, the air inlet hole is communicated with the mixing cavity through the flow equalizing plate, and the mixing cavity is communicated with a plurality of first air outlet holes, a plurality of second air outlet holes and a plurality of third air outlet holes.

[0010] As a preferred scheme, the plurality of second air outlet holes are arranged in a circumferential array, and the plurality of second air outlet holes are all arranged inwardly and obliquely from top to bottom.

[0011] As a preferred scheme, the third gas outlet holes are arranged in a circumferential array, and each of the third gas outlet holes is arranged obliquely inward from top to bottom.

[0012] As a preferred scheme, the first gas outlet hole is arranged below the middle position of the second gas outlet holes, and the first gas outlet hole is arranged below the middle position of the third gas outlet holes.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The gas and the oxygen pass through the flow equalizing plate through the air inlet hole, are uniformly mixed together in the mixing cavity, and then the mixed gas passes through the first gas outlet hole, the second gas outlet holes and the third gas outlet holes at high speed, the gas sprayed from the inclined second gas outlet holes and the third gas outlet holes is crossed and collected at a position below the first gas outlet hole, so that the flame burning at the collection position can quickly cut the steel material, and the collected flame can reduce the slit of the steel plate.

[0015] The utility model discloses a cutting nozzle, which comprises a cutting nozzle body and an operating element. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic diagram of the front view of the utility model;

[0017] Figure 2 It is a structure schematic diagram of the bottom view of the utility model;

[0018] Figure 3 It is a structure schematic diagram of the top view of the utility model;

[0019] Figure 4 It is a structure schematic diagram of the section of the front view of the utility model.

[0020] In the drawing: 1, cutting nozzle body; 101, cutting nozzle main body; 102, operating element; 103, air inlet hole; 2, mixing assembly; 201, flow equalizing plate; 202, mixing cavity; 3, gas outlet assembly; 301, first gas outlet hole; 302, second gas outlet hole; 303, third gas outlet hole. DETAILED DESCRIPTION

[0021] The utility model will be described further below in combination with examples.

[0022] The following embodiments are used to illustrate the present application, but cannot be used to limit the protection scope of the present application. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements of the method of the present application under the concept of the present application all belong to the protection scope of the present application.

[0023] Please refer to Figures 1-4 The present application provides a cutting nozzle which is fast and can make the cutout of continuous casting steel smaller, comprising a cutting nozzle body 1, a mixing assembly 2 and an air outlet assembly 3, the cutting nozzle body 1 comprises a cutting nozzle main body 101, a gas inlet hole 103 is formed at the top of the cutting nozzle main body 101, and an operating member 102 is connected outside the cutting nozzle main body 101.

[0024] The mixing assembly 2 comprises a flow equalizing plate 201 and a mixing cavity 202, the flow equalizing plate 201 is connected in the gas inlet hole 103, and the mixing cavity 202 is formed in the cutting nozzle main body 101.

[0025] The air outlet assembly 3 comprises a first air outlet hole 301, a plurality of second air outlet holes 302 and a plurality of third air outlet holes 303, the third air outlet holes 303 are formed at the middle position of the bottom of the cutting nozzle main body 101, the plurality of second air outlet holes 302 are formed at the stepped position below the cutting nozzle main body 101, and the plurality of third air outlet holes 303 are formed at the stepped position above the cutting nozzle main body 101.

[0026] The shape of the operating member 102 is a regular hexagon, the cutting nozzle can be easily rotated through the operating member 102, the rotating cutting nozzle main body 101 can be smoothly installed or disassembled, and the operating member 102 is a regular hexagon.

[0027] The part of the cutting nozzle body 101 above the operating member 102 is provided as a cylindrical pipe, and the part of the cutting nozzle body 101 below the operating member 102 is provided as a stepped cone, the flow uniformizing plate 201 is composed of a large hole in the middle and a plurality of small holes outside the large hole, the large hole is located directly above the first gas outlet hole 301, the gas inlet hole 103 is connected with the mixing cavity 202 through the flow uniformizing plate 201, the mixing cavity 202 is connected with the plurality of first gas outlet holes 301, the plurality of second gas outlet holes 302 and the plurality of third gas outlet holes 303, by arranging the flow uniformizing plate 201, the gas and the oxygen can be blown into the mixing cavity 202 uniformly and mixed together in the mixing cavity 202; the plurality of second gas outlet holes 302 are distributed in a circumferential array, the plurality of second gas outlet holes 302 are all arranged obliquely inward from top to bottom, the plurality of third gas outlet holes 303 are distributed in a circumferential array, the plurality of third gas outlet holes 303 are all arranged obliquely inward from top to bottom, the first gas outlet hole 301 is located below the middle position of the plurality of second gas outlet holes 302, by arranging the second gas outlet holes 302 and the third gas outlet holes 303, the gas sprayed from the plurality of oblique second gas outlet holes 302 and third gas outlet holes 303 can be crossed and collected at a position below the first gas outlet hole 301.

[0028] The first gas outlet hole 301 is located below the middle position of the plurality of third gas outlet holes 303, by arranging the gas outlet assembly 3, because the gas outlet assembly 3 is provided with a plurality of gas outlet holes, the plurality of gas outlet holes can spray a large amount of gas in a unit time, so that a plurality of groups of sprayed gas can be burned and rapidly cut the steel plate.

[0029] The working principle and use process of the utility model: when the cutting nozzle needs to be used, after the cutting nozzle body 101 is installed to the appropriate position, the gas and the oxygen pass through the flow uniformizing plate 201 through the gas inlet hole 103, and then are uniformly mixed together in the mixing cavity 202, then the gas mixed together can pass through the first gas outlet hole 301, the plurality of second gas outlet holes 302 and the plurality of third gas outlet holes 303 at high speed, the gas sprayed from the plurality of oblique second gas outlet holes 302 and third gas outlet holes 303 can be crossed and collected at a position below the first gas outlet hole 301, so that the flame burned at the collection position can rapidly cut the steel material, and the collected flame can reduce the kerf of the steel plate.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cutting nozzle which is fast and can make the cut of continuous casting steel material smaller, comprising a cutting nozzle body (1), a mixing assembly (2) and an air outlet assembly (3), characterized in that: The cutting nozzle body (1) comprises a cutting nozzle body (101), a top of the cutting nozzle body (101) is provided with an air inlet hole (103), and an operating member (102) is connected to the cutting nozzle body (101); The mixing assembly (2) comprises a flow equalizing plate (201) and a mixing cavity (202), the flow equalizing plate (201) is connected in the air inlet hole (103), and the mixing cavity (202) is arranged in the cutting nozzle body (101); The air outlet assembly (3) comprises a first air outlet hole (301), a plurality of second air outlet holes (302) and a plurality of third air outlet holes (303), the third air outlet holes (303) are arranged at the middle position of the bottom of the cutting nozzle body (101), the plurality of second air outlet holes (302) are arranged at the stepped position below the cutting nozzle body (101), and the plurality of third air outlet holes (303) are arranged at the stepped position above the cutting nozzle body (101).

2. The cutting nozzle according to claim 1, which is capable of cutting the continuous casting steel material quickly and reducing the notch of the continuous casting steel material, wherein: The operating member (102) is in the shape of a regular hexagon, the part of the cutting nozzle body (101) above the operating member (102) is in the shape of a cylindrical tube, and the part of the cutting nozzle body (101) below the operating member (102) is in the shape of a stepped cone.

3. The cutting nozzle according to claim 1, wherein: The flow equalizing plate (201) comprises a large hole in the middle and a plurality of small holes outside the large hole, and the large hole is located directly above the first air outlet hole (301).

4. The cutting nozzle according to claim 1, wherein: The air inlet hole (103) is connected with the mixing cavity (202) through the flow equalizing plate (201), and the mixing cavity (202) is connected with the plurality of first air outlet holes (301), the plurality of second air outlet holes (302) and the plurality of third air outlet holes (303).

5. The cutting nozzle according to claim 1, wherein: The plurality of second air outlet holes (302) are arranged in a circumferential array, and each of the plurality of second air outlet holes (302) is arranged inclined inward from top to bottom.

6. The cutting nozzle according to claim 1, wherein: The plurality of third air outlet holes (303) are arranged in a circumferential array, and each of the plurality of third air outlet holes (303) is arranged inclined inward from top to bottom.

7. The cutting nozzle according to claim 1, wherein: The first air outlet hole (301) is located below the middle position of the plurality of second air outlet holes (302), and the first air outlet hole (301) is located below the middle position of the plurality of third air outlet holes (303).

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