A sampling device for testing caustic soda production

Abstract

This utility model relates to a sampling device for caustic soda production testing, belonging to the field of caustic soda production testing technology. It includes a caustic soda production device and a conveying pipeline fixedly connected to the bottom of the caustic soda production device and extending to its exterior. An online sampling device is installed at the end of the conveying pipeline away from the caustic soda production device. The online sampling device includes a sampling valve fixedly connected to the end of the conveying pipeline away from the caustic soda production device, and a sampling box is installed at the bottom of the sampling valve. This sampling device for caustic soda production testing, through the conveying pipeline, can transport caustic soda from inside the caustic soda production device. By using the sampling valve and connecting pipe, a portion of the caustic soda inside the conveying pipeline can enter the connecting pipe. By using an internally threaded sleeve and a sampling tank, a portion of the caustic soda can be collected through the sampling tank. This achieves online sampling during the caustic soda production process and significantly reduces the contact time between caustic soda and air.

Description

Technical Field

[0001] This utility model relates to the field of caustic soda production testing technology, specifically a sampling device for caustic soda production testing. Background Technology

[0002] Caustic soda, scientifically known as sodium hydroxide, is a highly corrosive alkali with wide applications in industry and daily life. There are three industrial methods for producing caustic soda: causticization, electrolysis, and ion exchange membrane methods. During the production process, it is necessary to sample the caustic soda to test its quality; a sampler is used for this sampling.

[0003] Sampling equipment is required in the caustic soda production and testing process. Chinese utility model patent CN211235122U discloses a sampler for caustic soda production, comprising a hollow tube, a material-holding plate at one end of the hollow tube, a connecting plate ring at the connection between the material-holding plate and the hollow tube, and a connecting tube at the end of the hollow tube near the connecting plate ring. A threaded rod is located inside the end of the hollow tube away from the connecting tube, a sealing plug is located inside the end of the threaded rod near the connecting tube, and a sealing ring is located at the end of the sealing plug away from the threaded rod. A rotating joint is located at the connection between the end of the hollow tube away from the material-holding plate and the threaded rod. In this utility model, the connecting plate ring is fixedly fitted onto the outside of the connecting tube of the hollow tube. The magnets at the connection point attract each other, thus fixing them together. The hexagonal structure of the connecting plate ring engages with the hexagonal shape of the hollow tube, preventing the connecting plate ring from rotating on the hollow tube. The fixed material-holding plate can then sample solid powdery substances.

[0004] However, during the use of this utility model, although the device can sample and collect caustic soda in different states, caustic soda is extremely susceptible to moisture and dissolution. It is impossible to ensure that the contact between caustic soda and air is reduced during sampling, which may affect the purity of caustic soda, affect the detection structure, and fail to meet production requirements. Therefore, a sampling device for caustic soda production detection is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a sampling device for caustic soda production testing, which has the advantage of reducing the contact time between caustic soda and air. This solves the problem that although the device can sample and collect caustic soda in different states, caustic soda is extremely susceptible to moisture and dissolution, making it impossible to guarantee that the contact time between caustic soda and air can be reduced during sampling, which may affect the purity of caustic soda, affect the detection structure, and fail to meet production requirements.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for caustic soda production testing, comprising a caustic soda production device and a conveying pipe fixedly connected to the bottom of the caustic soda production device and extending to its exterior, wherein an online sampling device is provided at the end of the conveying pipe away from the caustic soda production device; The online sampling device includes a sampling valve fixedly connected to the end of the conveying pipeline away from the caustic soda production unit. A sampling box is provided at the bottom of the sampling valve. A connecting pipe extending into the sampling box is fixedly connected to the bottom of the sampling valve. An internally threaded sleeve is fixedly connected to the bottom end of the connecting pipe. A sampling tank extending to its bottom is connected to the internal thread of the internally threaded sleeve.

[0007] Furthermore, a connecting rod extending into the bottom of the sampling box is slidably connected, and a positioning seat is fixedly connected to the top of the connecting rod.

[0008] Furthermore, the bottom of the sampling container extends into the interior of the positioning seat, and a rotating handle is fixedly connected to the bottom end of the connecting rod.

[0009] Furthermore, a movable rod extending into the sample box is slidably connected to one side of the sample box. A movable base is fixedly connected to one end of the movable rod inside the sample box, and a handle is fixedly connected to the other end of the movable rod away from the movable base.

[0010] Furthermore, a placement groove is provided on the lower surface of the movable seat, a clamping plate is provided inside the movable seat, and a return spring is fixedly connected between the clamping plate and the movable seat.

[0011] Furthermore, there are two clamping plates, which are symmetrically distributed inside the movable seat and located inside the placement slot.

[0012] Furthermore, a limiting guide rod is fixedly connected inside the sampling box, the limiting guide rod passes through the movable seat, and a positioning block capable of positioning the movable seat is fixedly connected outside the limiting guide rod.

[0013] Compared with the prior art, this utility model provides a sampling device for testing caustic soda production, which has the following beneficial effects: 1. This sampling equipment for caustic soda production testing can transport caustic soda from inside the caustic soda production unit through a conveying pipeline. By setting up a sampling valve and a connecting pipe, a portion of the caustic soda inside the conveying pipeline can enter the connecting pipe. By setting up an internal threaded sleeve and a sampling tank, a portion of the caustic soda can be collected through the sampling tank. This enables online sampling during the caustic soda production process and significantly reduces the contact time between caustic soda and air.

[0014] 2. This caustic soda production testing sampling equipment, by setting up a clamping plate and a return spring, can clamp and fix the lid on the sampling tank. Furthermore, by setting up a movable rod and a handle, it can move the moving seat, thus achieving the effect of covering the sampling tank inside the sampling box. This further prevents air from contacting caustic soda, greatly reducing the probability of external environmental contamination of caustic soda. It solves the problem that although the device can sample and collect caustic soda in different states, caustic soda is extremely susceptible to moisture and dissolution, making it impossible to guarantee minimal contact between caustic soda and air during sampling, which could potentially affect the purity of the caustic soda, impact the testing structure, and fail to meet production requirements. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model; Figure 2 This is a schematic diagram of the online sampling structure of this utility model; Figure 3 This is a schematic diagram of the positioning seat of this utility model; Figure 4 This is a schematic diagram of the structure of the movable base of this utility model; Figure 5 This is a schematic diagram of the structure of the clamping plate of this utility model.

[0016] In the diagram: 1 Caustic soda production unit, 2 Conveying pipeline, 3 Sampling valve, 4 Sampling box, 5 Connecting pipe, 6 Internal threaded sleeve, 7 Sampling tank, 8 Connecting rod, 9 Positioning seat, 10 Rotating handle, 11 Movable rod, 12 Moving seat, 13 Handle, 14 Clamping plate, 15 Return spring, 16 Limiting guide rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please see Figures 1 to 3This embodiment of a sampling device for caustic soda production testing includes a caustic soda production device 1 and a conveying pipe 2 fixedly connected to the bottom of the caustic soda production device 1 and extending to its exterior. An online sampling device is provided at the end of the conveying pipe 2 away from the caustic soda production device 1. The online sampling device includes a sampling valve 3 fixedly connected to the end of the conveying pipe 2 away from the caustic soda production device 1. A sampling box 4 is provided at the bottom of the sampling valve 3. A connecting pipe 5 extending into the sampling box 4 is fixedly connected to the bottom of the sampling valve 3. An internally threaded sleeve 6 is fixedly connected to the bottom end of the connecting pipe 5. A sampling tank 7 extending to its bottom is connected to the internal thread of the internally threaded sleeve 6.

[0019] The bottom of the sampling box 4 is slidably connected to a connecting rod 8 extending into it, and the top of the connecting rod 8 is fixedly connected to a positioning seat 9. The bottom of the sampling container 7 extends into the interior of the positioning seat 9, and the bottom of the connecting rod 8 is fixedly connected to a rotating handle 10.

[0020] It should be noted that the front of the sampling box 4 is hinged with a sealed door, and a transparent glass window is fixedly connected to the sealed door. The internal threaded sleeve 6, the sampling can 7 and the positioning seat 9 are all on the same vertical line, which can ensure that the sampling can 7 is exactly aligned with the internal threaded sleeve 6.

[0021] Example 2: Please see Figures 1 to 5 Based on Embodiment 1, the device includes a movable rod 11 that is slidably connected to one side of the sampling box 4 and extends into it. One end of the movable rod 11 located inside the sampling box 4 is fixedly connected to a movable seat 12. The other end of the movable rod 11 away from the movable seat 12 is fixedly connected to a handle 13. A placement groove is provided on the lower surface of the movable seat 12. A clamping plate 14 is provided inside the movable seat 12. A return spring 15 is fixedly connected between the clamping plate 14 and the movable seat 12.

[0022] In this embodiment, there are two clamping plates 14, which are symmetrically distributed inside the movable seat 12. The clamping plates 14 are located inside the placement slot. A limiting guide rod 16 is fixedly connected inside the sampling box 4. The limiting guide rod 16 passes through the movable seat 12. A positioning block that can position the movable seat 12 is fixedly connected to the outside of the limiting guide rod 16. The clamping plate 14 is arc-shaped.

[0023] By adopting the above technical solution, by setting a positioning block, the movable seat 12 can be positioned directly above the sampling container 7. By setting a clamping plate 14 and a return spring 15, the lid on the sampling container 7 can be clamped and fixed. By setting a movable rod 11 and a handle 13, the movable seat 12 can be moved, thereby achieving the effect of covering the sampling container 7 inside the sampling box 4.

[0024] The working principle of the above embodiments is as follows: First, the staff opens the sampling box 4, then places the lid of the sampling canister 7 inside the moving seat 12 and fixes it with the clamping plate 14. Next, the staff places the sampling canister 7 on the positioning seat 9 and pushes the connecting rod 8 upward so that the sampling canister 7 is aligned with the internal threaded sleeve 6. At the same time, the staff rotates the rotating handle 10 to fix the sampling canister 7 and the internal threaded sleeve 6 with threads. Then, the sampling valve 3 is opened so that the caustic soda inside the conveying pipe 2 enters the sampling canister 7. After sampling is completed, the sampling valve 3 is closed. Then, the staff rotates the rotating handle 10 to remove the sampling canister 7 and pushes the handle 13 to connect the sampling canister 7 with the lid inside the moving seat 12 with threads.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for testing caustic soda production, comprising a caustic soda production unit (1) and a conveying pipe (2) fixedly connected to the bottom of the caustic soda production unit (1) and extending to its exterior, characterized in that: An online sampling device is installed at the end of the conveying pipeline (2) that is away from the caustic soda production unit (1); The online sampling device includes a sampling valve (3) fixedly connected to the end of the conveying pipeline (2) away from the caustic soda production unit (1). A sampling box (4) is provided at the bottom of the sampling valve (3). A connecting pipe (5) extending into the sampling box (4) is fixedly connected to the bottom of the sampling valve (3). An internal threaded sleeve (6) is fixedly connected to the bottom end of the connecting pipe (5). A sampling tank (7) extending to its bottom is connected to the internal thread of the internal threaded sleeve (6).

2. The sampling device for testing caustic soda production according to claim 1, characterized in that: The bottom of the sampling box (4) is slidably connected to a connecting rod (8) extending into it, and the top of the connecting rod (8) is fixedly connected to a positioning seat (9).

3. The sampling device for testing caustic soda production according to claim 2, characterized in that: The bottom of the sampling container (7) extends into the interior of the positioning seat (9), and the bottom end of the connecting rod (8) is fixedly connected to a rotating handle (10).

4. The sampling device for testing caustic soda production according to claim 1, characterized in that: A movable rod (11) extending into the sample box (4) is slidably connected to one side of the sample box (4). A movable seat (12) is fixedly connected to one end of the movable rod (11) inside the sample box (4). A handle (13) is fixedly connected to the other end of the movable rod (11) away from the movable seat (12).

5. A sampling device for testing caustic soda production according to claim 4, characterized in that: The lower surface of the movable seat (12) is provided with a placement groove, and a clamping plate (14) is provided inside the movable seat (12). A return spring (15) is fixedly connected between the clamping plate (14) and the movable seat (12).

6. A sampling device for testing caustic soda production according to claim 5, characterized in that: There are two clamping plates (14), which are symmetrically distributed inside the movable seat (12) and are located inside the placement slot.

7. A sampling device for testing caustic soda production according to claim 4, characterized in that: The sampling box (4) is internally fixedly connected to a limiting guide rod (16), which passes through the movable seat (12). The limiting guide rod (16) is externally fixedly connected to a positioning block that can position the movable seat (12).

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