Device and method for detecting samples in pneumatically driven sample boxes

Abstract

The present invention relates to the technical field of steelmaking sampling and analysis, and specifically to a device and method for detecting samples in a pneumatic sample box. The present application cooperates with a sample box, a sample mold box, a detection rod device and a detection sensor to efficiently and conveniently detect whether there is a sample in the pneumatic sample box and the state of the sample, saving the time for sample delivery and analysis and improving the overall speed of steelmaking sampling and analysis; the present application fixes the sample in the sample box cavity through the sample mold box, limiting the uncontrollability of the sample position in the cavity, thereby effectively reducing the difficulty of sample detection in the sample box; the present application adopts a dual detection method of manual detection of the sample at the sampling end and equipment detection, which can ensure the accuracy of the detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of steelmaking sampling and analysis, and in particular to a device and method for detecting a sample in a pneumatically driven sampling box. Background Art

[0002] During the steelmaking process, samples are taken from the molten steel to form block samples or slag samples, which are loaded into specific columnar sample boxes (also called sample barrels, hereinafter referred to as sample boxes). The sample boxes are then placed in a sealed pipe, which connects the sampling site and the analysis and inspection room. Compressed air is injected through the pneumatic sample delivery pipe to push the sample box, or the pipe is used to extract the vacuum and pull the sample box, so that it moves forward in the pipe to the analysis and inspection room. The analysis room obtains the sample box through manual sampling or robotic arms, opens the lid and takes out the sample for corresponding analysis, and then transmits the analysis component results to the site to guide steelmaking.

[0003] However, at the sample delivery end, due to improper operation when manual or robotic sampling, the manual operator forgets to place the sample or the sample block grabbed by the robotic operator is not placed in the sample box normally, and the empty sample box is placed in a pneumatic duct and sent to the analysis and inspection room. In the existing technology, when manual sampling or robotic sampling in the analysis and inspection room is performed, whether the sample box is empty (i.e., there is no sample inside) is often checked by opening the lid. Manual sampling can also be used to manually shake the sample box to know whether there is a sample, while the robotic operator opens the lid to pour the sample, and then uses the photoelectric detection in the sample receiving box to determine whether the sample box is empty. The detection method of the existing technology increases the time for sample delivery and analysis, affecting the speed requirement for analyzing samples in steelmaking. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: in view of the shortcomings of the existing technology, a device and method for detecting samples in a pneumatic sampling box is provided, which can efficiently and conveniently detect the status of samples in a pneumatic sampling box, save the time for sample collection and analysis, and improve the overall speed of steelmaking sampling and analysis.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A device for detecting a sample in a pneumatically driven sample box is used to detect the state of a sample 5 in a sample box 3, comprising a sample mold box 1, a detection rod device 2 and a detection sensor 4. The sample box 3 is provided with a sample box upper cover 3.1, a sample box cavity 3.2 and a sample box lower cover 3.3 from top to bottom. The sample mold box 1 is installed in the sample box cavity 3.2. A sample cavity 1.1 for storing the sample 5 is provided on the upper part of the sample mold box 1. A detection rod device 2 is installed on the top of the sample cavity 1.1. The detection rod device 2 includes a detection rod 2.1. One end of the detection rod 2.1 penetrates into the sample cavity 1.1, and the other end penetrates into a through hole 3.5 opened at the top of the sample box upper cover 3.1. A detection sensor 4 is provided at a position above the sample box upper cover 3.1 corresponding to the through hole 3.5.

[0007] Furthermore, a limit gasket 2.3 and a compression spring 2.2 are provided in the middle of the detection rod 2.1. The limit gasket 2.3 is fixed to the middle of the detection rod 2.1 through a stop pin 2.4. One end of the compression spring 2.2 rests against the convex surface on the top of the sample box cavity 3.2, and the other end rests against the limit gasket 2.3.

[0008] Furthermore, the detection sensor 4 is specifically a photoelectric sensor. A reflective surface is provided on the top of the sample box cover 3.1, and a through hole 3.5 is opened in the middle of the reflective surface. The transmitting end and the receiving end of the photoelectric sensor are symmetrically arranged with the axis of the through hole 3.5 as the midline.

[0009] Furthermore, a fixing rod is provided at the lower portion of the sample mold box 1, and a fixing groove is provided at the bottom of the sample box cavity 3.2. The sample mold box 1 is fixed in the sample box cavity 3.2 through the cooperation between the fixing rod and the fixing groove.

[0010] Furthermore, an identification hole 3.4 is provided on the outer wall of the sample box cavity 3.2, and the shape of the identification hole 3.4 is adapted to the style of the sample 5.

[0011] Furthermore, the shape of the sample cavity 1.1 is adapted to the style of the sample 5.

[0012] Furthermore, the size of the through hole 3.5 is adapted to the size of the detection rod 2.1.

[0013] Based on the same inventive concept, the present application also provides a method for detecting a sample in a pneumatically driven sample box, which is based on the above-mentioned detection device and includes the following steps:

[0014] S1, sample type identification at the sample delivery end: determine the type of sample 5 to be loaded in the current sample box 3 by identifying the shape of the hole 3.4;

[0015] S2, sample placement at the sample delivery end: Place the sample 5 of the corresponding style into the sample mold box 1 provided with a sample cavity 1.1 of the corresponding shape, and install the detection rod device 2 on the top of the sample cavity 1.1;

[0016] S3, assembling the sample box at the sample delivery end: fix the sample box cavity 3.2 to the sample box lower cover 3.3, and fix the sample mold box 1 to the sample box cavity 3.2 by matching the fixing rod with the fixing groove, and then press the sample box upper cover 3.1 into the sample box so that the detection rod 2.1 passes through the through hole 3.5;

[0017] S4, delivering the current sample box at the sample delivery end to the sampling end through the pneumatic sample delivery pipe;

[0018] S5, manual inspection of the sample at the sampling end: visually inspect whether the rod 2.1 passes through the through hole 3.5 to determine whether the current sample box 3 contains a sample. If a sample is contained, the shape of the current sample is determined by visually identifying the shape of the hole 3.4;

[0019] S6, sampling end sample equipment detection: determine whether the detection rod 2.1 passes through the through hole 3.5 through the detection sensor 4. If not, it indicates that there is no sample in the current sample box. If so, the content of the sample in the current sample box is determined by measuring the length of the detection rod 2.1 passing through the through hole 3.5.

[0020] Furthermore, the styles of the sample 5 specifically include block samples and slag samples.

[0021] Furthermore, the detection sensor 4 cooperates with the reflective surface on the top of the sample box cover 3.1 through the transmitting end and the receiving end to determine whether the detection rod 2.1 passes through the through hole 3.5.

[0022] Compared with the prior art, the present invention has the following main advantages:

[0023] 1. This application uses a sample box, a sample mold box, a detection rod device and a detection sensor to efficiently and conveniently detect the presence and status of a sample in a pneumatic sample box, saving time for sample collection and analysis and improving the overall speed of steelmaking sampling and analysis.

[0024] 2. This application fixes the sample in the sample box cavity through the sample mold box, limiting the uncontrollability of the sample position in the cavity, thereby effectively reducing the difficulty of sample detection in the sample box;

[0025] 3. This application adopts a dual detection method of manual detection of sampling end samples and equipment detection, which can ensure the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a front view of the sample box of the present invention;

[0027] Figure 2 A top view of the sample box of the present invention;

[0028] Figure 3 This is a cross-sectional view of the detection device of the present invention in a state without a sample;

[0029] Figure 4 A cross-sectional view of the detection device of the present invention with a sample state;

[0030] Figure 5 This is a schematic diagram of the test rod device installed in the sample mold box of the present invention;

[0031] Figure 6 Schematic diagram of a block sample in an embodiment of the present invention;

[0032] Figure 7 Schematic diagram of a block sample mold box in an embodiment of the present invention;

[0033] Figure 8 Schematic diagram of a slag sample mold box in an embodiment of the present invention;

[0034] Figure 9 A schematic diagram of loading a sample into a sample mold box according to an embodiment of the present invention;

[0035] Figure 10 Flowchart of the detection method of the present invention.

[0036] In the figure: 1. Sample mold box; 1.1. Sample cavity; 2. Detection rod device; 2.1. Detection rod; 2.2. Compression spring; 2.3. Limiting gasket; 2.4. Stop pin; 3. Sample box; 3.1. Sample box upper cover; 3.2. Sample box cavity; 3.3. Sample box lower cover; 3.4. Identification hole; 3.5. Through hole; 4. Detection sensor; 5. Sample. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0038] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, or two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0039] 1. A device for testing samples in a pneumatically driven sample box

[0040] like Figures 1 to 5 As shown, the present invention provides a device for detecting a sample in a pneumatically driven sample box, which mainly consists of a sample mold box 1, a detection rod device 2, a sample box 3 and a detection sensor 4.

[0041] The sample box 3 is provided with a sample box upper cover 3.1, a sample box cavity 3.2 and a sample box lower cover 3.3 from top to bottom, and a sample mold box 1 is fixedly installed in the sample box cavity 3.2;

[0042] The upper portion of the sample mold box 1 is provided with a sample cavity 1.1 for storing the sample 5, the lower portion of the sample mold box 1 is provided with a fixing rod, and the bottom of the sample box cavity 3.2 is provided with a fixing groove, and the sample mold box 1 is fixed in the sample box cavity 3.2 through the fixing rod and the fixing groove.

[0043] Furthermore, a detection rod device 2 is installed on the top of the sample chamber 1.1. The detection rod device 2 includes a detection rod 2.1, a compression spring 2.2 and a limit washer 2.3. One end of the detection rod 2.1 penetrates into the sample chamber 1.1, and the other end penetrates into the through hole 3.5 opened on the top of the sample box cover 3.1.

[0044] The limit washer 2.3 is fixed to the middle of the detection rod 2.1 through the stop pin 2.4;

[0045] One end of the compression spring 2.2 abuts against the convex surface on the top of the sample box cavity 3.2, and the other end abuts against the limiting gasket 2.3, so as to push the detection rod 2.1 to move downward relative to the sample cavity 1.1.

[0046] (When there is no sample in the sample mold box, the detection rod has no sample support below and will sink under the action of the spring; when there is a sample in the sample mold box, the detection rod will be supported by the sample below, which will push the detection rod upward and compress the spring.)

[0047] Furthermore, a detection sensor 4 is provided above the sample box cover 3.1 at a position corresponding to the through hole 3.5;

[0048] The detection sensor 4 is specifically a photoelectric sensor. A reflective surface is provided on the top of the sample box cover 3.1. A through hole 3.5 is opened in the middle of the reflective surface. The transmitting end and the receiving end of the photoelectric sensor are symmetrically arranged with the axis of the through hole 3.5 as the midline.

[0049] (The detection sensor detects through photoelectric reflection. When there is no sample, the photoelectric reflection can be received normally. When the detection rod is exposed on the surface of the end cover, the position of the incident light is offset, causing the reflected light to shift, so that the photoelectric receiving sensor cannot detect the signal. At this time, it means that there is a sample in the box.)

[0050] Furthermore, an identification hole 3.4 is provided on the outer wall of the sample box cavity 3.2, and the shape of the identification hole 3.4 is adapted to the style of the sample 5.

[0051] Furthermore, the shape of the sample cavity 1.1 is adapted to the style of the sample 5, which specifically includes a block sample and a slag sample.

[0052] Furthermore, the size of the through hole 3.5 is adapted to the size of the detection rod 2.1.

[0053] 2. A method for testing samples in a pneumatically driven sample box

[0054] Based on the same inventive concept, the embodiment of the present application also provides a method for detecting a sample in a pneumatic sample box, based on the detection device as described above, such as Figure 10 As shown, the specific steps include:

[0055] Step 1: Sample type identification at the sample delivery end: determine the type of sample 5 to be loaded in the current sample box 3 by identifying the shape of the hole 3.4;

[0056] Step 2: Sample placement at the sample delivery end: Place the sample 5 of the corresponding style into the sample mold box 1 provided with a sample cavity 1.1 of the corresponding shape, and install the detection rod device 2 on the top of the sample cavity 1.1;

[0057] Step 3: Assemble the sample box at the sample delivery end: Fix the sample box cavity 3.2 to the sample box lower cover 3.3, and fix the sample mold box 1 to the sample box cavity 3.2 by matching the fixing rod with the fixing groove. Then, press the sample box upper cover 3.1 into the sample box so that the detection rod 2.1 passes through the through hole 3.5.

[0058] Step 4: The current sample box at the sample delivery end is delivered to the sampling end through the pneumatic sample delivery pipe;

[0059] Step 5: Manual inspection of the sample at the sampling end: visually inspect whether the rod 2.1 passes through the through hole 3.5 to determine whether the current sample box 3 contains a sample. If a sample is contained, visually identify the shape of the hole 3.4 to determine the type of the current sample.

[0060] Step 6, sampling end sample equipment detection: determine whether the detection rod 2.1 passes through the through hole 3.5 through the detection sensor 4. If not, it indicates that there is no sample in the current sample box. If so, the content of the sample in the current sample box is determined by measuring the length of the detection rod 2.1 passing through the through hole 3.5.

[0061] In summary:

[0062] 1. This application uses a sample box, a sample mold box, a detection rod device and a detection sensor to efficiently and conveniently detect the presence and status of a sample in a pneumatic sample box, saving time for sample collection and analysis and improving the overall speed of steelmaking sampling and analysis.

[0063] 2. This application fixes the sample in the sample box cavity through the sample mold box, limiting the uncontrollability of the sample position in the cavity, thereby effectively reducing the difficulty of sample detection in the sample box;

[0064] 3. This application adopts a dual detection method of manual detection of sampling end samples and equipment detection, which can ensure the accuracy of the test results.

[0065] It is easy for technicians to understand that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for detecting a sample in a pneumatically driven sample box, for detecting the state of a sample (5) in a sample box (3), characterized in that: The invention comprises a sample mold box (1), a detection rod device (2) and a detection sensor (4); the sample box (3) is provided with a sample box upper cover (3.1), a sample box cavity (3.2) and a sample box lower cover (3.3) in order from top to bottom; the sample mold box (1) is installed in the sample box cavity (3.2); a sample cavity (1.1) for storing a sample (5) is provided on the upper part of the sample mold box (1); a detection rod device (2) is installed on the top of the sample cavity (1.1); the detection rod device (2) comprises a detection rod (2.1); one end of the detection rod (2.1) penetrates into the sample cavity (1.1) and the other end penetrates into a through hole (3.5) opened on the top of the sample box upper cover (3.1); a detection sensor (4) is provided at a position above the sample box upper cover (3.1) corresponding to the through hole (3.5).

2. A pneumatic sample delivery box sample detection device according to claim 1, characterized in that: A limiting gasket (2.3) and a compression spring (2.2) are provided in the middle of the detection rod (2.1); the limiting gasket (2.3) is fixed to the middle of the detection rod (2.1) via a stop pin (2.4); one end of the compression spring (2.2) abuts against the convex surface at the top of the sample box cavity (3.2), and the other end abuts against the limiting gasket (2.3).

3. The device for detecting samples in a pneumatically driven sample box according to claim 1, characterized in that: The detection sensor (4) is specifically a photoelectric sensor. A reflective surface is provided on the top of the sample box upper cover (3.1). A through hole (3.5) is provided in the middle of the reflective surface. The transmitting end and the receiving end of the photoelectric sensor are symmetrically arranged with the axis of the through hole (3.5) as the center line.

4. The device for detecting samples in a pneumatically driven sample box according to claim 1, characterized in that: The lower part of the sample mold box (1) is provided with a fixing rod, and the bottom of the sample box cavity (3.2) is provided with a fixing groove. The sample mold box (1) is fixed in the sample box cavity (3.2) through the cooperation of the fixing rod and the fixing groove.

5. The device for detecting samples in a pneumatically driven sample box according to claim 1, characterized in that: An identification hole (3.4) is provided on the outer wall of the sample box cavity (3.2), and the shape of the identification hole (3.4) is adapted to the style of the sample (5).

6. The device for detecting samples in a pneumatically driven sample box according to claim 1, characterized in that: The shape of the sample chamber (1.1) is adapted to the style of the sample (5).

7. The device for detecting samples in a pneumatically driven sample box according to claim 1, characterized in that: The size of the through hole (3.5) is compatible with the size of the detection rod (2.1).

8. A method for testing a sample in a pneumatically driven sample box based on the detection device according to any one of claims 1 to 7, characterized in that: The steps include: S1, sample type identification at the sample delivery end: determining the type of sample (5) to be loaded into the current sample box (3) by identifying the shape of the hole (3.4); S2, sample placement at the sample delivery end: placing a sample (5) of a corresponding style into a sample mold box (1) provided with a sample cavity (1.1) of a corresponding shape, and installing a detection rod device (2) on the top of the sample cavity (1.1); S3, assembling the sample box at the sample delivery end: fix the sample box cavity (3.2) on the sample box lower cover (3.3), and fix the sample mold box (1) to the sample box cavity (3.2) by matching the fixing rod with the fixing groove, and then press the sample box upper cover (3.1) to make the detection rod (2.1) pass through the through hole (3.5); S4, delivering the current sample box at the sample delivery end to the sampling end through the pneumatic sample delivery pipe; S5, manual inspection of the sample at the sampling end: determine whether the current sample box (3) contains a sample by visually inspecting whether the rod (2.1) passes through the through hole (3.5); if the sample is contained, determine the type of the current sample by visually identifying the shape of the hole (3.4); S6, sampling end sample device detection: determine whether the detection rod (2.1) passes through the through hole (3.5) through the detection sensor (4); if not, it indicates that there is no sample in the current sample box; if so, the content of the sample in the current sample box is determined by measuring the length of the detection rod (2.1) passing through the through hole (3.5).

9. The detection method according to claim 8, characterized in that The styles of the sample (5) specifically include block samples and slag samples.

10. The detection method according to claim 8, characterized in that The detection sensor (4) cooperates with the reflective surface on the top of the sample box upper cover (3.1) through a transmitting end and a receiving end to determine whether the detection rod (2.1) passes through the through hole (3.5).

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