Continuous casting machine nozzle detection device

Abstract

The utility model relates to the technical field of nozzle detection equipment, and discloses a continuous casting machine nozzle detection device which comprises a cylinder body, a water adding pipe, an air inlet pipe and an end head fixedly connected to the outer surface of the cylinder body, an air pressure meter installed in the end head, a top threaded connection end cover of the water adding pipe, and a top threaded connection air conveying pipe of the air inlet pipe. One end of the air conveying pipe is connected with a first one-way valve, one end of the first one-way valve is connected with an inflator, a second one-way valve is installed on the outer surface of the inflator, and a piston is installed in the inflator. Water is added into the barrel body, then the handle is repeatedly pressed to drive the connecting rod, the connecting rod drives the piston to reciprocate in the inflator, gas generated in the inflator can enter the barrel body through the gas conveying pipe and the gas inlet pipe, then the pressure intensity in the barrel body can be increased, and then the ball valve is opened. Therefore, the pressure in the cylinder body can spray water out through the nozzle, and the whole structure can detect whether the nozzle can spray water or not in a set pressure environment.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle detection equipment, in particular to a nozzle detection device for a continuous casting machine. Background Art

[0002] The continuous casting machine is a metallurgical equipment used to continuously pour and solidify high-temperature molten steel into a billet shell. It is an indispensable part of modern steel production. The nozzle of the continuous casting machine is a key component used in the secondary cooling process, which affects the internal and external quality of the continuous casting billet. In order to ensure the quality of the billet, it is usually necessary to remove the nozzle after the final pouring of the continuous casting machine for cleaning, and then recycle the cleaned nozzle. However, there is a lack of offline detection equipment for the nozzle in the prior art. Therefore, only after the nozzle is installed on the spray pipe for normal production can it be found whether the nozzle is clean and whether it is damaged.

[0003] According to the search, the Chinese patent document, announcement number: CN204142484U, discloses a continuous casting machine nozzle detection device. During the detection, the valves of the spray pipe air inlet pipe and the spray pipe water inlet pipe are opened to ventilate and water the nozzle, which can simulate the normal production environment. The shape of the atomized water sprayed by the nozzle on the projection board and the atomized shape in the air are further detected to detect the spray angle and water flow density, and then judge whether the nozzle cleaning and its own quality are qualified.

[0004] However, when the above detection device detects the nozzle, it cannot know the pressure environment under which the nozzle is tested, and can only simply know whether the nozzle can spray. Therefore, we propose a continuous casting machine nozzle detection device to solve the above problem. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a continuous casting machine nozzle detection device, which has the advantages of being able to set the pressure environment and then detect the nozzle, so as to know under what pressure environment the nozzle can maintain normal operation, etc., thereby solving the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a continuous casting machine nozzle detection device, comprising a cylinder, the outer surface of the cylinder is fixedly connected to a water filling pipe, an air intake pipe and an end head, a pressure gauge is installed in the end head, the top of the water filling pipe is threadedly connected to the end cover, the top of the air intake pipe is threadedly connected to the air supply pipe, one end of the air supply pipe is connected to a No. 1 one-way valve, one end of the No. 1 one-way valve is connected to an air pump, a No. 2 one-way valve is installed on the outer surface of the air pump, and a piston is installed in the air pump, the top of the piston is connected to a connecting rod, the top of the connecting rod is fixedly connected to a handle, a ball valve is installed at one end of the cylinder, and a base is installed at the bottom of the cylinder.

[0009] Preferably, a cylinder cover is installed on the top of the air pump, a through hole is formed through the top of the cylinder cover, and a connecting rod is inserted into the through hole.

[0010] Through the above technical solution, the handle is repeatedly pressed to drive the connecting rod, and the connecting rod drives the piston to reciprocate in the air pump. Since the No. 1 one-way valve can only pass gas and cannot allow the gas to flow back into the air pump, and the No. 2 one-way valve can only intake air into the air pump but cannot exhaust it, the gas generated in the air pump will enter the interior of the cylinder through the air supply pipe and the air intake pipe, thereby increasing the pressure inside the cylinder.

[0011] Preferably, one end of the ball valve away from the barrel is threadedly connected to the nozzle, and the barrel is made of transparent plastic.

[0012] Through the above technical solution, water is added into the cylinder through the water adding pipe by opening the end cover, and then the cylinder is pressurized. The pressure change in the cylinder can be known by observing the pressure gauge. When the set pressure is reached, the pressurization is stopped. By connecting the nozzle to be tested to one end of the ball valve and then opening the ball valve, the pressure in the cylinder will spray water through the nozzle. The overall structure can detect whether the nozzle can spray under the set pressure environment.

[0013] Preferably, the bottom of the base is fixedly connected to the bottom plate, and the top surface of the bottom plate is fixedly connected to the test board.

[0014] Through the above technical solution, since the test plate is located in front of the nozzle, a watermark will be formed on the outer surface of the test plate when the nozzle sprays water. By observing the range of the watermark, the range that the nozzle can spray under the set pressure environment can be known.

[0015] Preferably, the end cover includes a cover body, a hollow rod, an air hole, a protrusion and a spring, the hollow rod is inserted into the interior of the cover body, the bottom end of the hollow rod is provided with an air hole, and the bottom end of the hollow rod is fixedly connected to the protrusion, and the outer surface of the hollow rod is sleeved with the spring.

[0016] Through the above technical solution, since the cylinder is pressurized manually, once the pressure in the cylinder is too high, the hollow rod can be pressed downward to move it downward in the cover body, which can drive the air hole to move downward. When the air hole is exposed, the gas in the cylinder will enter the hollow rod through the air hole and be discharged, which can reduce the pressure in the cylinder and then adjust the internal pressure of the cylinder.

[0017] Preferably, a circular hole is formed through the top surface of the cover body, a hollow rod is inserted into the circular hole, the top end of the spring contacts the top end of the hollow rod, and the bottom end of the spring contacts the top of the cover body.

[0018] Through the above technical solution, under normal conditions, the spring has a resistance force on the top of the hollow rod, so that the protrusion can be pressed against the bottom of the cover body, thereby blocking the circular hole of the cover body to prevent air leakage from the cylinder.

[0019] Compared with the prior art, the utility model provides a nozzle detection device for a continuous casting machine, which has the following beneficial effects:

[0020] 1. The utility model adds water into the cylinder, and then repeatedly presses the handle to drive the connecting rod, which drives the piston to reciprocate in the air pump. The gas generated in the air pump enters the cylinder through the air pipe and the air inlet pipe, thereby increasing the pressure in the cylinder. The pressure change in the cylinder can be known by observing the pressure gauge. When the set pressure is reached, the pressurization is stopped, and the nozzle to be tested is connected to one end of the ball valve and then the ball valve is opened. The pressure in the cylinder will spray water out through the nozzle. The overall structure can detect whether the nozzle can spray under the set pressure environment.

[0021] 2. The utility model presses the hollow rod downward to make it move downward in the cover body, which can drive the air hole to move downward. When the air hole is exposed, the gas in the cylinder will enter the hollow rod through the air hole and be discharged, which can reduce the pressure in the cylinder and further adjust the internal pressure of the cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0023] Figure 2 It is a side sectional schematic diagram of the structure of the utility model;

[0024] Figure 3 It is a cross-sectional schematic diagram of the end cover of the utility model structure.

[0025] Among them: 1. Cylinder body; 2. Water filling pipe; 3. Air inlet pipe; 4. End; 5. Pressure gauge; 6. End cover; 61. Cover body; 62. Hollow rod; 63. Air hole; 64. Protrusion; 65. Spring; 7. Air pipe; 8. No. 1 one-way valve; 9. Air pump; 91. Cylinder cover; 10. No. 2 one-way valve; 11. Piston; 12. Connecting rod; 13. Handle; 14. Ball valve; 15. Base; 16. Nozzle; 17. Bottom plate; 18. Test plate. DETAILED DESCRIPTION

[0026] 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 the embodiments. Based on the embodiments in 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.

[0027] See also Figure 1-Figure 3 A nozzle detection device for a continuous casting machine comprises a cylinder 1, the outer surface of the cylinder 1 is fixedly connected to a water supply pipe 2, an air intake pipe 3 and an end head 4, a pressure gauge 5 is installed in the end head 4, the top of the water supply pipe 2 is threadedly connected to an end cover 6, the top of the air intake pipe 3 is threadedly connected to an air supply pipe 7, one end of the air supply pipe 7 is connected to a No. 1 one-way valve 8, one end of the No. 1 one-way valve 8 is connected to an air pump 9, a No. 2 one-way valve 10 is installed on the outer surface of the air pump 9, and a piston 11 is installed in the air pump 9, the top of the piston 11 is connected to a connecting rod 12, the top of the connecting rod 12 is fixedly connected to a handle 13, a ball valve 14 is installed at one end of the cylinder 1, and a base 15 is installed at the bottom of the cylinder 1.

[0028] Specifically, a cylinder cover 91 is installed on the top of the air pump 9, and a through hole is formed through the top of the cylinder cover 91, and a connecting rod 12 is inserted into the through hole. The advantage is that by repeatedly pressing the handle 13 to drive the connecting rod 12, the connecting rod 12 drives the piston 11 to reciprocate in the air pump 9. Since the No. 1 check valve 8 can only pass gas and cannot make the gas flow back into the air pump 9, and the No. 2 check valve 10 can only take in air into the air pump 9 but cannot exhaust it, the gas generated in the air pump 9 will enter the interior of the cylinder 1 through the air supply pipe 7 and the air intake pipe 3, thereby increasing the pressure in the cylinder 1.

[0029] Specifically, the end of the ball valve 14 away from the cylinder 1 is threadedly connected to the nozzle 16, and the cylinder 1 is made of transparent plastic. The advantage is that by opening the end cover 6, water is added into the water adding pipe 2 into the cylinder 1, and then the cylinder 1 is pressurized. By observing the barometer 5, the pressure change in the cylinder 1 can be known. When the set pressure is reached, the pressurization is stopped. By connecting the nozzle 16 to be tested to one end of the ball valve 14, and then opening the ball valve 14, the pressure in the cylinder 1 will spray water through the nozzle 16. The overall structure can detect whether the nozzle 16 can spray under the set pressure environment.

[0030] Specifically, the bottom of the base 15 is fixedly connected to the bottom plate 17, and the top surface of the bottom plate 17 is fixedly connected to the test plate 18. The advantage is that, since the test plate 18 is located in front of the nozzle 16, a watermark will be formed on the outer surface of the test plate 18 after the nozzle 16 sprays water, and the range of the nozzle 16 that can be sprayed under the set pressure environment can be known by observing the range of the watermark.

[0031] Specifically, the end cover 6 includes a cover body 61, a hollow rod 62, an air hole 63, a convex head 64 and a spring 65. The hollow rod 62 is inserted into the cover body 61, and the bottom end of the hollow rod 62 is provided with an air hole 63. The bottom end of the hollow rod 62 is fixedly connected to the convex head 64, and the outer surface of the hollow rod 62 is sleeved with the spring 65. The advantage is that since the cylinder 1 is pressurized manually, once the pressure in the cylinder 1 is too high, the hollow rod 62 can be pressed downward to move downward in the cover body 61, so that the air hole 63 can be driven to move downward. When the air hole 63 is exposed, the gas in the cylinder 1 will enter the hollow rod 62 through the air hole 63 and be discharged, so that the pressure in the cylinder 1 can be reduced, and the internal pressure of the cylinder 1 can be adjusted.

[0032] Specifically, a circular hole is formed through the top surface of the cover body 61, and a hollow rod 62 is inserted into the circular hole. The top end of the spring 65 contacts the top end of the hollow rod 62, and the bottom end of the spring 65 contacts the top of the cover body 61. The advantage is that the spring 65 has a resistance force on the top of the hollow rod 62 under normal conditions, so that the protrusion 64 can contact the bottom of the cover body 61, thereby blocking the circular hole of the cover body 61 to prevent the cylinder body 1 from leaking.

[0033] When in use, open the end cover 6 and add water to the water filling pipe 2 to enter the cylinder 1, then install the nozzle 16 to be tested on the ball valve 14, and then repeatedly press the handle 13 to drive the connecting rod 12, and the connecting rod 12 drives the piston 11 to reciprocate in the air pump 9. Since the No. 1 one-way valve 8 can only pass gas and cannot allow the gas to flow back into the air pump 9, and the No. 2 one-way valve 10 can only intake air into the air pump 9 but cannot exhaust it, the gas generated in the air pump 9 will enter the interior of the cylinder 1 through the air supply pipe 7 and the air inlet pipe 3, thereby increasing the pressure in the cylinder 1. , the pressure change in the cylinder 1 can be seen by observing the barometer 5. When the set pressure is reached, the pressurization is stopped. If the pressure in the cylinder 1 is too high, the hollow rod 62 can be pressed downward to move it downward in the cover 61, which can drive the air hole 63 to move downward. When the air hole 63 is exposed, the gas in the cylinder 1 will enter the hollow rod 62 through the air hole 63 and be discharged, which can reduce the pressure in the cylinder 1. Finally, the ball valve 14 is opened, so that the pressure in the cylinder 1 will spray water through the nozzle 16. The sprayed water forms a watermark on the test plate 18, and the spray range of the nozzle 16 can be known.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nozzle detection device for a continuous casting machine, comprising a cylinder (1), characterized in that: The outer surface of the cylinder (1) is fixedly connected to a water supply pipe (2), an air intake pipe (3) and an end head (4); a pressure gauge (5) is installed in the end head (4); the top of the water supply pipe (2) is threadedly connected to an end cover (6); the top of the air intake pipe (3) is threadedly connected to an air supply pipe (7); one end of the air supply pipe (7) is connected to a No. 1 one-way valve (8); one end of the No. 1 one-way valve (8) is connected to an air pump (9); and the outer surface of the air pump (9) is installed with a A No. 2 one-way valve (10) is provided, and a piston (11) is installed in the air pump (9), the top of the piston (11) is connected to a connecting rod (12), the top of the connecting rod (12) is fixedly connected to a handle (13), a ball valve (14) is installed at one end of the cylinder (1), and a base (15) is installed at the bottom of the cylinder (1), the end of the ball valve (14) away from the cylinder (1) is threadedly connected to a nozzle (16), and the cylinder (1) is made of transparent plastic material.

2. A nozzle detection device for a continuous casting machine according to claim 1, characterized in that: A cylinder cover (91) is installed on the top of the air pump (9), and a through hole is formed through the top of the cylinder cover (91), and a connecting rod (12) is inserted into the through hole.

3. A nozzle detection device for a continuous casting machine according to claim 1, characterized in that: The bottom of the base (15) is fixedly connected to the bottom plate (17), and the top surface of the bottom plate (17) is fixedly connected to the test board (18).

4. A nozzle detection device for a continuous casting machine according to claim 1, characterized in that: The end cover (6) comprises a cover body (61), a hollow rod (62), an air hole (63), a convex head (64) and a spring (65); the hollow rod (62) is inserted into the interior of the cover body (61); the bottom end of the hollow rod (62) is provided with an air hole (63); the bottom end of the hollow rod (62) is fixedly connected to the convex head (64); and the outer surface of the hollow rod (62) is sleeved with the spring (65).

5. A nozzle detection device for a continuous casting machine according to claim 4, characterized in that: A circular hole is formed through the top surface of the cover body (61), a hollow rod (62) is inserted into the circular hole, the top end of the spring (65) contacts the top end of the hollow rod (62), and the bottom end of the spring (65) contacts the top of the cover body (61).

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