Shaft type safe collecting device for sublance probe

Abstract

The utility model discloses a sublance probe vertical shaft type safe collecting device, which relates to the sublance probe technology field, and comprises a vertical shaft body, a connecting shaft, a sampling door and a protective cover, a large notch is arranged right in front of the lower part of the vertical shaft body, a small notch is arranged between the right rear part of the upper part of the vertical shaft body and an upper pipeline, and the left side of the vertical shaft body is connected with the connecting shaft through a support frame; the sampling door is matched with the large notch of the vertical shaft body in size, the sampling door is welded to the connecting shaft, and the sampling door rotates along with the connecting shaft to close or open the large notch; the protective cover is fixed to the upper portion of the connecting shaft, the protective cover and the sampling door form an included angle in the vertical direction, the protective cover is inserted into or moved out of the small notch of the vertical shaft body along with rotation of the connecting shaft, and the vertical shaft body and the pipeline above are separated or opened. When an operator takes the probe from the vertical shaft type collecting device for the sublance probe, the protective cover separates the vertical shaft body from the pipeline above, and the falling probe is intercepted by the protective cover, so that the operator taking away the probe below cannot be injured.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary gun probes, in particular to a vertical shaft type safety collection device for auxiliary gun probes. Background Art

[0002] Since the converter is in a semi-closed state, it is quite difficult to obtain information about the molten metal pool during the uninterrupted blowing process. With the increasing automation of converter steelmaking, the use of auxiliary guns to detect the molten pool has become the main means of obtaining information changes in the molten pool during steelmaking. The auxiliary gun refers to a metal gun that can be raised and lowered and directly inserted into the molten pool in addition to the oxygen gun for oxygen top-blown converters. The end of the auxiliary gun can be equipped with probes with different functions to measure the temperature, composition and other information in the furnace during the smelting process, and then the various information obtained is transmitted to the converter main control room through a computer. The lifting and lowering of the auxiliary gun, the loading and unloading of the probe, the transmission of data and the loading of the probe bin can all be mechanized and automated through computer management. In order to improve the hit rate of converter steelmaking endpoint control, the most important thing is to continuously obtain information such as molten steel temperature and composition during the blowing process, and further adjust it through a more advanced dynamic control model to accurately hit the endpoint target.

[0003] There are two main types of composite probes used on the converter sub-lance, namely the SLS-TSC (temperature measurement, sampling, and carbon determination) probe and the SLS-TSO (temperature measurement, sampling, and oxygen determination) probe.

[0004] About 2 minutes before the end of blowing, the auxiliary gun equipped with the SLS-TSC probe is inserted into the molten pool to quickly measure the molten pool temperature and the solidification temperature of the molten steel, and then take out the steel sample (send it to the laboratory for analysis), and send the data to the process computer. The carbon content is calculated through the relationship between the solidification temperature and the carbon content, and the static blowing model is corrected in time to achieve dynamic control and improve the hit rate of converter steelmaking.

[0005] The SLS-TSO probe is inserted into the molten pool at the end of blowing to measure the final steel liquid temperature and oxygen activity. The carbon content can be accurately calculated through the carbon-oxygen balance relationship, which allows the operator to make a quick steel tapping decision in time and calculate the amount of deoxidizer to be added after the furnace is tapped in advance.

[0006] When the SLS-TSO probe passes through the molten steel / slag interface after the measurement, the molten steel temperature and oxygen activity undergo a sudden change. The difference at this time can be used to quickly calculate the molten steel level in the molten pool.

[0007] After the probe of the converter auxiliary gun is taken down by the bullet removal device, it falls from a height of 24 meters into the auxiliary gun probe shaft collection device on the platform at a height of 9.1 meters behind the converter through a pipeline. The operator takes out the probe and takes out the ping-pong sample inside to send it to the laboratory for testing. Due to the short time interval between the TSC and TSO probe measurements, sometimes the operator does not take the TSC probe immediately. When he takes the TSC probe, the TSO probe just falls and hits his arm, posing a safety hazard. Summary of the invention

[0008] In order to solve the above technical problems, the utility model provides a shaft-type safety collection device for auxiliary gun probes. When the operator goes to the shaft-type collection device for auxiliary gun probes to take the probes, the shaft body is separated from the upper pipeline, and the falling probe will not directly injure the operator who is taking the probes below, thereby eliminating safety hazards.

[0009] The technical solution of the utility model is: a shaft-type safety collection device for a secondary gun probe, comprising a shaft body, a connecting shaft, a sampling door, and a protective cover, wherein a large notch is arranged in front of the lower part of the shaft body, a small notch is arranged between the upper rear part and the upper pipeline, a blocking rod for blocking the protective cover from rotating out is arranged near the small notch in front of the shaft body, and the left side of the shaft body is connected to the connecting shaft through a supporting frame; the sampling door is consistent in size with the large notch of the shaft body, the sampling door is welded on the connecting shaft, and the sampling door closes or opens the large notch as the connecting shaft rotates; the protective cover is fixed to the upper part of the connecting shaft, and the protective cover and the sampling door are arranged at an angle in the vertical direction, and when the sampling door is opened or closed, the protective cover is inserted into or removed from the small notch of the shaft body as the connecting shaft rotates, so as to separate or open the shaft body from the upper pipeline.

[0010] Preferably, the protective cover is a circular steel plate with a diameter slightly larger than the diameter of the shaft.

[0011] Preferably, the protective cover and the sampling door are arranged at an angle of 180 degrees in the vertical direction.

[0012] Preferably, an observation hole is provided on the upper portion of the sampling door.

[0013] Preferably, a hollow handle is provided on the outer edge of the sampling door, and a connecting buckle is provided at a position corresponding to the large notch, and the size of the connecting buckle is adapted to the hollow size of the hollow handle, so that the hollow handle and the connecting buckle are buckled together.

[0014] The utility model has at least the following beneficial effects:

[0015] (1) When the sampling door is closed, the protective cover rotates out of the auxiliary gun probe shaft along with the connecting shaft. When the sampling door is opened, the protective cover rotates just above the auxiliary gun probe shaft along with the connecting shaft, separating the shaft body from the upper pipeline. Even if there is still an auxiliary gun probe falling in the upper pipeline, it will directly fall on the protective cover plate, and will not directly injure the operator who is removing the probe below, thereby eliminating safety hazards.

[0016] (2) The utility model can see from the observation hole whether the probe has fallen, and decide whether to open the sampling door to take the probe, thereby improving work efficiency;

[0017] (3) The utility model has a simple structure, is easy to operate, and effectively eliminates safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the sampling door of the utility model in an open state;

[0019] Figure 2 It is a schematic diagram of the structure of the sampling door of the utility model in the closed state.

[0020] Figure numerals: 1. shaft body, 2. large notch, 3. connecting buckle, 4. small notch, 5. protective cover, 6. connecting shaft, 7. observation hole, 8. sampling door, 9. hollow handle, 10. pipeline, 11 supporting frame, 12. stop rod. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the following will be combined with the attached Figures 1-2 The technical solution of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0022] This embodiment provides a secondary gun probe shaft type safety collection device, the structure of which is as follows Figure 1 , Figure 2 As shown, it includes a shaft body 1, a connecting shaft 6, a sampling door 8, and a protective cover 5. A large notch 2 is arranged in the front of the lower part of the shaft body 1, and a small notch 4 is arranged between the upper rear and the upper pipeline. A support frame 11 is arranged on the left side of the shaft body 1 and connected with the connecting shaft 6; the sampling door 8 is consistent in size with the large notch 2 and is welded on the connecting shaft 6. The large notch 2 is closed or opened as the connecting shaft 6 rotates; the protective cover 5 is fixed to the upper part of the connecting shaft 6 and the protective cover 5 and the sampling door 8 are arranged at an angle in the vertical direction. When the sampling door 8 is opened or closed, the protective cover 5 is inserted into or removed from the small notch 4 of the shaft body as the connecting shaft 6 rotates, so as to separate or open the shaft body 1 from the upper pipeline 10.

[0023] like Figure 2 As shown, the protective cover 5 is set to be a circular steel plate with a diameter slightly larger than the diameter of the shaft, which completely separates the shaft body 1 from the upper pipe 10. If a secondary gun probe falls and directly lands on the protective cover 5, it will not directly injure the operator who is removing the probe below, thereby eliminating safety hazards.

[0024] like Figure 1 As shown, the protective cover 5 is fixed on the upper part of the connecting shaft 6 and the protective cover 5 and the sampling door 8 are arranged at an angle of 180 degrees in the vertical direction. When the sampling door 8 is closed, the protective cover 5 rotates out of the auxiliary gun probe shaft along with the connecting shaft 6. When the sampling door 8 is opened, the protective cover 5 rotates just above the auxiliary gun probe shaft body 1 along with the connecting shaft 6, separating the shaft body 1 from the upper pipeline 10.

[0025] like Figure 1 , Figure 2 As shown, an observation hole 7 is provided on the upper part of the sampling door 8. When the sampling door 8 is closed, it can be observed through the observation hole 57 whether there is a probe in the shaft body 1.

[0026] like Figure 1 , Figure 2 As shown, a hollow handle 9 is arranged on the outer edge of the sampling door 8, and a connecting buckle 3 is arranged at a corresponding position of the large notch 2. The size of the connecting buckle 3 is adapted to the hollow size of the hollow handle 9, so that the hollow handle 9 and the connecting buckle 3 are buckled together.

[0027] like Figure 1 , Figure 2 As shown, a blocking rod 12 is arranged near the small notch 4 just in front of the shaft body 1 . When the sampling door 8 is opened, the blocking rod 12 blocks the protective cover 5 from rotating out of the small notch 4 , thereby completely separating the shaft body 1 from the upper pipeline 10 .

[0028] The working principle of the utility model is as follows: when the sampling door is closed, the protective cover rotates out of the auxiliary gun probe shaft along with the connecting shaft; when the sampling door is opened, the protective cover rotates just above the auxiliary gun probe shaft along with the connecting shaft, separating the shaft body from the upper pipeline; even if there is still an auxiliary gun probe falling in the upper pipeline, it will directly fall on the protective cover plate, and will not directly injure the operator who is removing the probe below, thereby eliminating safety hazards.

[0029] The above are preferred implementations of the present utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A secondary gun probe shaft type safety collection device, characterized in that: The invention comprises a shaft body (1), a connecting shaft (6), a sampling door (8), and a protective cover (5); a large notch (2) is arranged at the front of the lower part of the shaft body (1); a small notch (4) is arranged at the rear of the upper part and between the upper pipe; a blocking rod (12) is arranged near the front of the shaft body (1) to prevent the protective cover (5) from rotating out; a support frame (11) is arranged on the left side of the shaft body (1) and connected to the connecting shaft (6); the sampling door (8) is the same size as the large notch The large notch (2) is matched with the opening (2) and is welded to the connecting shaft (6). As the connecting shaft (6) rotates, the large notch (2) is closed or opened. The protective cover (5) is fixed to the upper part of the connecting shaft (6) and the protective cover (5) and the sampling door (8) are arranged at an angle in the vertical direction. When the sampling door (8) is opened or closed, as the connecting shaft (6) rotates, the protective cover (5) is inserted into or removed from the small notch (4) of the shaft body, thereby blocking or opening the shaft body (1) and the upper pipeline (10).

2. A secondary gun probe shaft type safety collection device according to claim 1, characterized in that: The protective cover (5) is a circular steel plate with a diameter greater than the diameter of the shaft.

3. A secondary gun probe shaft type safety collection device according to claim 1, characterized in that: The protective cover (5) and the sampling door (8) are arranged at an angle of 180 degrees in the vertical direction.

4. A secondary gun probe shaft type safety collection device according to claim 1, characterized in that: An observation hole (7) is provided on the upper portion of the sampling door (8).

5. The auxiliary gun probe shaft type safety collection device according to claim 1, characterized in that: A hollow handle (9) is arranged on the outer edge of the sampling door (8), and a connecting buckle (3) is arranged at a position corresponding to the large notch (2). The size of the connecting buckle (3) is adapted to the hollow size of the hollow handle (9), so that the hollow handle (9) and the connecting buckle (3) are buckled together.

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