Screening and sampling device for blast furnace raw materials

Abstract

The utility model discloses a screening and sampling device for blast furnace raw materials, and relates to the technical field of blast furnace raw material sampling. The sampling device comprises a sampling barrel, a first operating rod is mounted on the side wall of the sampling barrel, and a screen is clamped in the sampling barrel. The sampling barrel is used for collecting blast furnace raw material samples, and an operator can manually control the position and angle of the sampling barrel conveniently through the first operation rod installed on the side wall. Through the operating rod, sampling can be carried out under the condition of not directly contacting a high-temperature or dangerous environment, so that the safety and convenience of operation are improved. The screen in the sampling barrel can filter dust in raw materials during sampling, detection interference is reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace raw material sampling technology, and in particular to a screening and sampling device for blast furnace raw materials. Background Technology

[0002] In the production of sintered ore in blast furnaces, it is necessary to periodically extract sintered ore samples for chemical composition and physical property testing. Based on the test results, sintering process parameters such as raw material ratios are adjusted to ensure product quality. For a long time, sintered ore sampling has relied on manual sampling. During sampling, workers use long-handled shovels and clamping tools to extract sintered ore samples. The sampled raw materials often contain a large amount of dust, which not only hinders testing but also causes environmental pollution. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a screening and sampling device for blast furnace raw materials, which solves the problem that existing blast furnace sinter sampling tools will trap a large amount of dust during sampling.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A screening and sampling device for blast furnace raw materials includes a sampling barrel, a first operating rod installed on the side wall of the sampling barrel, and a screen clamped inside the sampling barrel.

[0006] It also includes a top plate, which is set on one side of the blast furnace raw material inlet. A slide rail is set at the bottom of the top plate, and a movable seat is slidably installed on the slide rail. A bracket is hinged to the bottom of the movable seat, and a hanging rod is set at the bottom of the bracket. The sampling bucket is hung at the bottom of the hanging rod.

[0007] The free end of the first operating lever is rotatably connected to the second operating lever. A connecting groove is provided on the free end of the first operating lever. A connecting block is provided at the end of the second operating lever corresponding to the position of the connecting groove. The connecting block is snapped into the connecting groove. An installation groove is provided on the first operating lever. A spring is connected to the bottom of the installation groove. A connecting post is connected to the top of the spring. A fixing block is connected to the top of the connecting post. A limiting post is provided at the bottom of the other end of the fixing block. The limiting post passes through the first operating lever and snaps into the connecting block in its connecting groove.

[0008] The sampling barrel has a threaded sleeve on its side wall, and the end of the first operating rod has a threaded head. The threaded head of the first operating rod is fitted into the threaded sleeve of the sampling barrel.

[0009] The bottom of the screen is provided with an elastic insert, and a locking block is provided on one side of the bottom of the elastic insert. The bottom of the sampling barrel is provided with an insertion hole, and the elastic insert is locked into the insertion hole by the locking block.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. The sampling bucket is used to collect blast furnace raw material samples. The first operating lever installed on the side wall allows operators to manually control the position and angle of the sampling bucket. Using the operating lever, sampling can be performed without direct contact with high temperatures or hazardous environments, improving operational safety and convenience. The screen inside the sampling bucket filters dust from the raw materials during sampling, reducing detection interference and environmental pollution.

[0012] 2. The top plate can protect the workers during the sampling process. During sampling, because the support and the movable seat are hinged together, the workers can push the sampling bucket to the feed port of the blast furnace raw materials through the first operating rod to take samples. After the sampling is completed, the workers release the first operating rod, and the sampling bucket returns to its original position under its own weight. The workers can shake the sampling bucket through the first operating rod to remove dust. While accurately sampling, it also effectively reduces environmental pollution.

[0013] By pulling up the fixing block, the connecting column connected to it is stretched by the spring, causing the limiting column to disengage from the inside of the limiting groove. This allows the connecting block to be rotated out of the connecting groove, enabling the first operating rod and the second operating rod to fold together, thus reducing the length. This solves the problem that although the sampling device for blast furnace raw materials in the existing technology can perform sampling operations, it can still achieve the sampling operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the connection between the bracket and the top plate of this utility model;

[0016] Figure 3 This is a partial enlarged view of part A of this utility model;

[0017] Figure 4 This is a three-dimensional structural diagram of the sampling bucket, the first operating lever, and the second operating lever of this utility model;

[0018] Figure 5 This is a partial enlarged view of part B of this utility model;

[0019] Figure 6 This is a front view schematic diagram of the connection between the first operating lever and the second operating lever of this utility model;

[0020] Figure 7 This is a schematic diagram of the main structure of the connection between the sieve and the sampling bucket of this utility model.

[0021] In the diagram: 1. First operating lever; 2. Second operating lever; 3. Sampling bucket; 4. Slide rail; 5. Hanging rod; 6. Bracket; 7. Top plate; 8. Roller; 9. Movable seat; 10. Fixed block; 11. Connecting groove; 12. Connecting block; 13. Screen; 14. Threaded sleeve; 15. Threaded head; 16. Limiting post; 18. Limiting groove; 19. Mounting groove; 20. Spring; 21. Connecting post; 22. Elastic insert; 23. Locking block; 24. Insertion hole. Detailed Implementation

[0022] 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.

[0023] A sieving and sampling device for blast furnace raw materials includes a sampling barrel 3, a first operating rod 1 installed on the side wall of the sampling barrel 3, and a screen 13 clamped inside the sampling barrel 3.

[0024] It also includes a top plate 7, which is set on one side of the blast furnace raw material inlet. A slide rail is provided at the bottom of the top plate 7, and a movable seat 9 is slidably installed on the slide rail. The movable seat 9 is slidably connected to the slide rail through rollers 8 provided on the inner side. A bracket 6 is hinged to the bottom of the movable seat 9, and a hanging rod 5 is provided at the bottom of the bracket 6. The sampling bucket 3 is hung at the bottom of the hanging rod 5, and the rollers 8 are slidably connected to the guide rail 4.

[0025] The free end of the first operating lever 1 is rotatably connected to the second operating lever 2. A connecting groove 11 is provided on the free end of the first operating lever 1. A connecting block 12 is provided at the end of the second operating lever 2 corresponding to the position of the connecting groove 11. The connecting block 12 is snapped into the connecting groove 11. An installation groove 19 is provided on the first operating lever 1. A spring 20 is connected to the inner bottom of the installation groove 19. A connecting post 21 is connected to the top of the spring 20. A fixing block 10 is connected to the top of the connecting post 21. A limiting post 16 is provided at the bottom of the other end of the fixing block 10. A limiting groove 18 is provided on the connecting block 12 corresponding to the position of the limiting post 16. After the limiting post 16 passes through the first operating lever 1, it snaps into the limiting groove 18 on the connecting block 12 in the connecting groove 11.

[0026] The sampling barrel 3 has a threaded sleeve 14 on its side wall and a threaded head 15 at the end of the first operating rod 1. The threaded head 15 of the first operating rod 1 is fitted into the threaded sleeve 14 of the sampling barrel 3.

[0027] In practice, a screen 13 is installed inside the sampling barrel 3. By shaking the sampling barrel 3, dust can be screened out. The second operating rod 2 is connected to the sampling barrel 3 by a threaded head 15 and a threaded sleeve 14, which is convenient for disassembly. At the same time, by pulling up the fixing block 10, the connecting column 21 connected to it stretches the spring 20, causing the limiting column 16 to disengage from the limiting groove 18. This allows the connecting block 12 to be rotated out from the connecting groove 11, so that the first operating rod 1 and the second operating rod 2 can be folded together to reduce the length. This solves the technical problems of existing blast furnace raw material sampling devices, which can perform sampling operations but do not have a screening function, generate dust during sampling, easily contaminate the testing site, and are detrimental to the health of staff. In addition, in order to sample the raw materials at the required location, a long operating handle is usually provided, which occupies a lot of space and is not conducive to storage.

[0028] The bottom of the screen 13 is provided with an elastic insert 22, and a locking block 23 is provided on one side of the bottom of the elastic insert 22. The bottom of the sampling barrel 3 is provided with an insertion hole 24, and the elastic insert 22 is locked in the insertion hole 24 by the locking block 23.

[0029] In practice, the screen 13 is set on the upper surface of the inner bottom of the sampling barrel 3. By moving the locking block 23, the elastic insert 22 is elastically bent. By moving the screen 13 upward, the elastic insert 22 and the locking block 23 connected to it are disengaged from the insertion hole 24 opened in the inner bottom of the sampling barrel 3, so as to facilitate the disassembly of the screen 13 and make it easy to replace the screen 13 or clean and prevent it from clogging as needed.

[0030] Before use, the top plate 7 of this device is installed and fixed at the feed inlet of the blast furnace. During use, the first operating lever 1 is pushed or pulled, causing the roller 8 to roll along the guide rail 4, moving the sampling bucket 3 to the desired sampling position. At this time, the raw material falls into the sampling bucket 3. By shaking the sampling bucket 3, dust can be discharged through the screen 13. When the screen 13 needs to be disassembled, first, the locking block 23 is moved, causing the elastic insert 22 to bend elastically. Then, the screen 13 is moved upwards, causing the elastic insert 22 and locking block 23 connected to it to disengage from the insertion hole 24 opened in the support plate 17, allowing the screen 13 to be removed from the inside of the sampling bucket 3. When it is necessary to store the first operating lever 1, the second operating lever 2, and the sampling bucket 3, first rotate the second operating lever 2 so that the threaded head 15 connected to it is unscrewed from the inside of the threaded sleeve 14, so that the second operating lever 2 is separated from the sampling bucket 3. Then pull the fixing block 10 upward so that the connecting post 21 connected to it stretches the spring 20, so that the limiting post 16 is disengaged from the inside of the limiting groove 18. Finally, the connecting block 12 is turned out from the inside of the connecting groove 11, so that the first operating lever 1 and the second operating lever 2 are folded together.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screening and sampling device for blast furnace raw materials, characterized in that: Includes a sampling bucket (3), on which a first operating lever (1) is installed, and a sieve (13) is snapped into the sampling bucket (3).

2. The screening and sampling device for blast furnace raw materials according to claim 1, characterized in that: It also includes a top plate (7), which is set on one side of the raw material feeding port of the blast furnace. A slide rail (4) is provided at the bottom of the top plate (7), and a movable seat (9) is slidably installed on the slide rail (4). A bracket (6) is hinged to the bottom of the movable seat (9), and a hanging rod (5) is provided at the bottom of the bracket (6). The sampling bucket (3) is hung at the bottom of the hanging rod (5).

3. The screening and sampling device for blast furnace raw materials according to claim 2, characterized in that: The free end of the first operating lever (1) is rotatably connected to the second operating lever (2). A connecting groove (11) is provided on the free end of the first operating lever (1). A connecting block (12) is provided at the end of the second operating lever (2) corresponding to the position of the connecting groove (11). The connecting block (12) is snapped into the connecting groove (11). An installation groove (19) is provided on the first operating lever (1). A spring (20) is connected to the bottom of the installation groove (19). A connecting post (21) is connected to the top of the spring (20). A fixing block (10) is connected to the top of the connecting post (21). A limiting post (16) is provided at the bottom of the other end of the fixing block (10). The limiting post (16) passes through the first operating lever (1) and snaps into the connecting block (12) in its connecting groove (11).

4. A screening and sampling device for blast furnace raw materials according to claim 3, characterized in that: The sampling barrel (3) has a threaded sleeve (14) on its side wall and a threaded head (15) at the end of the first operating rod (1). The threaded head (15) of the first operating rod (1) is fitted into the threaded sleeve (14) of the sampling barrel (3).

5. A screening and sampling device for blast furnace raw materials according to claim 4, characterized in that: The bottom of the screen (13) is provided with an elastic insert (22), and a locking block (23) is provided on one side of the bottom of the elastic insert (22). The bottom of the sampling bucket (3) is provided with an insertion hole (24), and the elastic insert (22) is locked in the insertion hole (24) by the locking block (23).

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