Sampling device for chemical test analysis of steel mill
By designing a sampling device that includes a main pipe, a secondary pipe, and a vacuum generator, the problems of raw material liquid contamination and operational errors during the laboratory sampling process were solved, achieving a sampling effect without contamination or leakage.
Patent Information
- Application Number
- CN202520355145.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-03
AI Technical Summary
In the current chemical testing and sampling process, directly using a scooping device can easily cause contamination of the raw material liquid, and improper operation can lead to testing errors.
A sampling device comprising a main pipe, a secondary pipe, a connecting pipe, and a valve was designed. A vacuum generator is used to evacuate the secondary pipe and the inside of the sampling bottle to create a vacuum, and the raw material liquid is drawn in by negative pressure. The airtightness of the sampling process is ensured by a threaded connection.
This achieved a pollution-free and leak-free sampling process, ensuring the accuracy and reliability of the test results.
Smart Images
Figure CN223870360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical sampling technology, specifically a sampling device for chemical testing and analysis in steel plants. Background Technology
[0002] Currently, most chemical testing sampling is done manually using scooping devices, which can easily lead to contamination of the raw material liquid and cause testing errors due to improper operation. Utility Model Content
[0003] To address the aforementioned technical problems, this utility model provides a dust removal device for mines, which solves the problems of potential contamination of raw material liquid and errors in testing caused by improper operation when directly using a scooping device for sampling.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A sampling device for chemical analysis in steel plants is characterized by comprising a main pipe, a secondary pipe, and a connecting pipe. The secondary pipe is located on the side of the main pipe, and the connecting pipe is provided on the secondary pipe. A valve is provided on the connecting pipe, and the valve is connected to a vacuum device. A piston column is slidably disposed inside the main pipe, and an installation hole is provided on the piston column. A threaded screw is installed in the installation hole, and the top of the screw is connected to a turntable located on the top of the main pipe. The bottom of the main pipe is connected to a storage tank of raw material liquid through a sampling bottle sealing port.
[0006] The main pipe has a sealing block at its top, a turntable at its top, a threaded post at its outlet, a connecting end at the mouth of the sampling bottle, and the threaded post and connecting end are rotatably connected by threads. The sampling bottle has an observation window.
[0007] The beneficial effects of this utility model are:
[0008] (1) The sampling bottle of this utility model is connected to the secondary tube. A vacuum generator is installed on the connecting tube. When the valve is opened, the air inside the secondary tube and the sampling bottle is extracted by the operation of the vacuum generator to make it a vacuum state. The piston column can be moved upward inside the main tube by the rotation of the screw. When the part of the secondary tube and the main tube is exposed from one side of the piston column, the negative pressure inside the secondary tube will draw the raw material liquid from the bottom connection end of the main tube and let it enter the sampling bottle. Then the sampling bottle and the secondary tube are separated to complete the sampling of the raw material liquid without contamination.
[0009] (2) The outlet of the sub-tube of this utility model is provided with a threaded post, and the mouth of the sampling bottle is provided with a connecting end. The threaded post and the connecting end are connected by a threaded rotation, which ensures the airtightness of the sampling process and avoids sample leakage. The observation window of the sampling bottle is used to observe whether the sample has been collected. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0011] Figure 2 This is a side view of the present invention.
[0012] Figure 3 This is a schematic diagram of the internal cross-sectional structure of this utility model.
[0013] Figure reference numerals: 1 main pipe, 2 secondary pipe, 3 threaded column, 4 sampling bottle, 5 observation window, 6 connecting pipe, 7 valve, 8 lead screw, 9 piston column, 10 sliding hole, 11 sealing block, 12 turntable, 13 sampling bottle sealing port, 14 connecting end. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.
[0016] like Figure 2 , Figure 3 As shown, a sampling device for chemical analysis in a steel plant includes a main pipe 1, a secondary pipe 2, and a connecting pipe 6. The secondary pipe 2 is located on the side of the main pipe 1, and the connecting pipe 6 is located on the secondary pipe 2. The connecting pipe 6 is equipped with a valve 7, which is connected to a vacuum device. A piston column 9 is slidably disposed inside the main pipe 1. The piston column 9 is provided with an installation hole, and a threaded screw 8 is installed in the installation hole. The top of the screw is connected to a turntable 12 located on the top of the main pipe 1. The bottom of the main pipe 1 is connected to a storage tank of raw material liquid through a sampling bottle sealing port 13.
[0017] like Figure 3 As shown, the top of the main pipe 1 is provided with a sealing block 11, the top of the sealing block 11 is provided with a turntable 12, the outlet of the secondary pipe 2 is provided with a threaded post 3, the mouth of the sampling bottle 4 is provided with a connecting end 14, the threaded post 3 and the connecting end 14 are threadedly rotatably connected, and the sampling bottle 4 is provided with an observation window 5.
[0018] In use, the sampling bottle 4 is connected to the threaded post 3 at one end of the secondary tube 2 via a threaded rotation seal. After connecting to an external vacuum generator via the connecting pipe 6, the piston post 9 is moved to the position where the secondary tube 2 contacts the main tube 1, creating a separate space between the secondary tube 2 and the sampling bottle 4. The valve 7 is opened, and the vacuum generator extracts air from the secondary tube 2 and the sampling bottle 4 to create a vacuum. Then, the valve 7 is closed, and the turntable 12 drives the lead screw 8 to rotate. The rotation of the lead screw 8 causes the piston post 9 to move upward inside the main tube 1. When the contact point between the secondary tube 2 and the main tube 1 is exposed from one side of the piston post 9, the negative pressure inside the secondary tube 2 draws the raw material liquid from the sampling bottle sealing port 13 at the bottom of the main tube 1, allowing it to enter the sampling bottle 4. Then, the sampling bottle 4 is separated from the secondary tube 2, thus completing the sampling.
[0019] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A sampling device for chemical testing and analysis in steel plants, characterized in that, It includes a main pipe (1), a secondary pipe (2), and a connecting pipe (6). The main pipe (1) has a secondary pipe (2) on its side, and a connecting pipe (6) is provided on the secondary pipe (2). A valve (7) is provided on the connecting pipe (6). The valve (7) is connected to a vacuum pump. A piston column (9) is provided in the main pipe (1) and can slide relative to it. An installation hole is provided on the piston column (9). A screw rod (8) is threaded in the installation hole. The top of the screw rod is connected to a turntable (12) on the top of the main pipe (1). The bottom of the main pipe (1) is connected to the storage tank of the raw material liquid through the sampling bottle sealing port (13).
2. The sampling device for chemical testing and analysis in steel plants according to claim 1, characterized in that, The main tube (1) is provided with a sealing block (11) at the top, and a turntable (12) is provided at the top of the sealing block (11). The outlet of the secondary tube (2) is provided with a threaded column (3). The mouth of the sampling bottle (4) is provided with a connecting end (14). The threaded column (3) and the connecting end (14) are connected by a threaded rotation. The sampling bottle (4) is provided with an observation window (5).