A displacement monitoring indicator for the roller ring of an oxidation dryer in a PTA plant.

Abstract

This utility model belongs to the field of chemical equipment monitoring technology, and discloses a displacement monitoring indicator for the roller ring of an oxidation dryer in a PTA unit. It includes a fixed sleeve and a measuring rod. A protective cover is provided around the roller ring. The fixed sleeve is installed on the side wall of the protective cover and communicates with it, with its axis parallel to the axis of the roller ring. A scale is fixedly connected to the fixed sleeve, extending away from the fixed sleeve. The measuring rod is slidably disposed inside the fixed sleeve. One end of the measuring rod passes through the fixed sleeve and the protective cover and contacts the roller ring, while the other end extends out of the fixed sleeve and has an indicator mark corresponding to the scale position. This utility model can effectively monitor and accurately calculate the axial displacement of the roller ring during the operation of the oxidation dryer, while also possessing good environmental adaptability and effectively reducing monitoring costs.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment monitoring technology, specifically relating to a displacement monitoring indicator for the roller ring of an oxidation dryer in a PTA unit. Background Technology

[0002] The roller ring plays a dual crucial role in the oxidation dryer: on the one hand, it is the core component supporting the smooth rotation of the cylinder on the support rollers; on the other hand, it is responsible for effectively transferring the weight of the cylinder and material to the support device, which is essential for ensuring the stable operation of the machine. As a fundamental structural component for achieving efficient and continuous drying operations, the roller ring's function is indispensable. Given that the cylinders of oxidation dryers in existing PTA plants are generally installed at an angle, the roller ring is prone to displacement due to continuous vibration and wear over long-term use. This displacement not only interferes with the normal operation of the equipment but also affects the uniformity of material drying and the accuracy of temperature control, leading to a serious decline in product quality. In extreme cases, severe roller ring displacement may cause equipment malfunction or even structural collapse.

[0003] The rolling ring is usually located inside the equipment, in a relatively harsh working environment, which limits the effective application of ordinary monitoring equipment. While high-precision monitoring equipment is feasible, it is often accompanied by high costs and requires continuous operation and maintenance by professional technicians, which further increases the overall cost of rolling ring displacement monitoring.

[0004] Patent CN 206177183 U describes a screw loosening monitoring device, which consists of a screw assembly and a nut assembly. The lower end of the screw retaining sleeve is equipped with an indicator scale, which allows for quick identification of the relative displacement between the screw and nut based on the scale on the nut retaining sleeve. This design solves the problems of potential damage to the screw and nut surfaces from manual marking and the easy smudging of ink, offering advantages such as simplicity, ease of use, and high operability. However, the application scope of this patent is limited to measuring the rotation between the screw and nut; it is unsuitable for monitoring the axial displacement of large-volume rolling rings. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model proposes a roller displacement monitoring indicator for an oxidation dryer in a PTA device. It can effectively monitor and accurately calculate the axial displacement of the roller during the operation of the oxidation dryer, while also having good environmental adaptability and effectively reducing monitoring costs.

[0006] The above-mentioned objective of this utility model is achieved through the following technical solution:

[0007] This utility model provides a displacement monitoring indicator for the roller ring of an oxidation dryer in a PTA unit, including a fixed sleeve and a measuring rod. The outer cover of the roller ring is equipped with a protective cover. The fixed sleeve is installed on the side wall of the protective cover and is connected to the protective cover, and the axis of the fixed sleeve is parallel to the axis of the roller ring. A scale is fixedly connected to the fixed sleeve and extends away from the fixed sleeve. The measuring rod is slidably disposed inside the fixed sleeve. One end of the measuring rod passes through the fixed sleeve and the protective cover and contacts the roller ring, while the other end extends out of the fixed sleeve and is provided with an indicator mark at that end to correspond to the scale position.

[0008] According to one embodiment of the present invention, when the rolling ring has not been displaced and one end of the measuring rod is in contact with the rolling ring, the indicator point to the zero mark of the scale.

[0009] According to one embodiment of the present invention, the scale is fixedly connected to the outer surface of the fixed sleeve by a fixing block, and the scale is parallel to the axis of the fixed sleeve.

[0010] According to one embodiment of the present invention, the end of the measuring rod with the indicator is provided with a handle, which is used to push the measuring rod to slide within the fixed sleeve and the protective cover to contact the rolling ring.

[0011] According to one embodiment of the present invention, the end of the measuring rod that contacts the rolling ring is conical.

[0012] According to one embodiment of the present invention, the indicator is fixedly mounted on the outer surface of the measuring rod by welding.

[0013] The advantages of this utility model compared with the existing technical solutions are:

[0014] 1. This utility model can effectively monitor the displacement change of the rolling ring by observing the position of the indicator pointing to the ruler, accurately judge the abnormal operating state of the equipment, and ensure the safety of equipment operation.

[0015] 2. This utility model has a simple structural design, high reliability, and does not rely on complex electronic components. It can maintain excellent performance even in extreme environments.

[0016] 3. This utility model has a handle at one end of the measuring rod. The handle ensures that the measuring rod is in contact with the rolling ring, effectively preventing displacement of the measuring rod caused by the vibration of the oxidation dryer, thereby reducing measurement errors.

[0017] 4. One end of the measuring rod of this utility model is designed as a cone. This design can minimize the contact area between the measuring rod and the rolling ring, thereby reducing the impact on the normal operation of the rolling ring. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] In the diagram: 1. Handle; 2. Indicator; 3. Equipment body; 4. Roller ring; 5. Scale; 6. Fixing block; 7. Fixing sleeve; 8. Measuring rod; 9. Protective cover. Detailed Implementation

[0020] The present invention will now be described in detail through specific embodiments, but this does not limit the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] Example 1

[0024] like Figure 1 As shown, this embodiment provides a displacement monitoring indicator for the roller ring of a PTA unit oxidation dryer, including a handle 1, an indicator 2, a machine body 3, a roller ring 4, a scale 5, a fixing block 6, a fixing sleeve 7, a measuring rod 8, and a protective cover 9. The machine body 3 is the main body of the PTA unit oxidation dryer, used for oxidizing and drying materials. The roller ring 4 is located on the periphery of the machine body 3 and is used to support the machine body 3. The protective cover 9 does not contact the roller ring 4; it is fitted over the outside of the roller ring 4 to reduce the impact of the external environment on the operation of the roller ring 4 and improve the service life of the roller ring 4.

[0025] The fixing sleeve 7 is cylindrical, see reference. Figure 1The A-side of the protective cover 9 is perpendicular to the axis of the rolling ring 4. Since one bottom surface of the fixing sleeve 7 is welded to the outer surface of the A-side of the protective cover 9, the axis of the fixing sleeve 7 is perpendicular to the A-side of the protective cover 9, which also makes the axis of the fixing sleeve 7 parallel to the axis of the rolling ring 4. The protective cover 9 has an opening corresponding to the position of the fixing sleeve 7, allowing the protective cover 9 and the fixing sleeve 7 to connect. One end of the measuring rod 8 is conical, and this end passes through the opening on the fixing sleeve 7 and the protective cover 9, resting against the rolling ring 4. The inner diameter of the fixing sleeve 7 is 20mm, and the outer diameter of the measuring rod 8 is 19mm. The inner diameter of the fixing sleeve 7 is only 1mm larger than the outer diameter of the measuring rod 8, which ensures the free sliding of the measuring rod 8 while enhancing the airtightness of the device, effectively preventing leakage of contaminated liquids inside the oxidation dryer.

[0026] Handle 1 is located at the end of measuring rod 8 furthest from rolling ring 4, and is fixed to measuring rod 8 by welding. It is used to push measuring rod 8, ensuring that the other end of measuring rod 8 is in contact with rolling ring 4. The other end of measuring rod 8 is conical in shape, minimizing the contact area between measuring rod 8 and rolling ring 4, thus preventing measuring rod 8 from affecting the normal operation of rolling ring 4. Indicator 2 is located on the portion of measuring rod 8 that does not pass through fixed sleeve 7, and is fixed to the outer surface of measuring rod 8 by welding. Scale 5 is fixedly connected to the outer surface of fixed sleeve 7 by fixing block 6. Scale 5 is parallel to the axis of fixed sleeve 7, and the portion of scale 5 extending beyond fixed sleeve 7 is marked with graduation lines. The graduation values ​​gradually increase from the position closer to rolling ring 4 towards the position farther away from rolling ring 4. When rolling ring 4 has not yet moved, the conical end of measuring rod 8 is pressed against rolling ring 4, at which point indicator 2 points to the zero graduation line on scale 5.

[0027] Example 2

[0028] This embodiment describes how to install and use the PTA unit oxidation dryer roller displacement monitoring indicator described in this utility model.

[0029] 1. Make a 20mm opening on surface A of the protective cover 9.

[0030] 2. Fix the scale 5 to the outer surface of the fixed sleeve 7 using the fixing block 6, and keep the scale 5 parallel to the axis of the fixed sleeve 7.

[0031] 3. Weld one bottom surface of the fixing sleeve 7 to the protective cover 9 so that the internal channel of the fixing sleeve 7 is aligned with the opening on the protective cover 9.

[0032] 4. One end of the measuring rod 8 is conical, and the handle 1 is welded to the other end of the measuring rod 8.

[0033] 5. Use the measuring rod 8 with the unwelded handle 1, pass it through the fixed sleeve 7 and the protective cover 9, and make this end abut against the rolling ring 4.

[0034] 6. Align the indicator 2 with the zero mark on the scale 5 and weld it to the outer surface of the measuring rod 8.

[0035] 7. Each time an observation is made, if the indicator 2 is located on the zero mark on the scale 5, then the rolling ring has not produced axial displacement.

[0036] 8. If the indicator 2 is not located on the zero mark on the scale 5, move the measuring rod 8 by the handle 1 so that the end of the measuring rod 8 without the handle 1 is against the rolling ring 4, and observe again.

[0037] 9. When observing again, if the indicator 2 is located on the zero mark on the scale 5, then the rolling ring 4 has not produced axial displacement.

[0038] 10. If indicator 2 is not located on the zero mark on scale 5, the value on the scale is the value of the axial displacement generated by the rolling ring 4.

[0039] The embodiments described above are merely preferred embodiments of this utility model, and not all possible embodiments of this utility model. For those skilled in the art, any obvious modifications made without departing from the principles and spirit of this utility model should be considered to be included within the scope of protection of the claims of this utility model.

Claims

1. A PTA plant oxidizer dryer roll ring displacement monitoring indicator characterized by, The application relates to a measuring device for measuring the displacement of a rolling ring (4), which comprises a fixed sleeve (7) and a measuring rod (8), and a protective cover (9) is arranged outside the rolling ring (4); the fixed sleeve (7) is arranged on the side wall of the protective cover (9) and is in communication with the protective cover (9), and the axis of the fixed sleeve (7) is parallel to the axis of the rolling ring (4); a scale (5) is fixedly connected to the fixed sleeve (7) and extends away from the fixed sleeve (7); the measuring rod (8) is slidably arranged in the fixed sleeve (7); one end of the measuring rod (8) penetrates through the fixed sleeve (7) and the protective cover (9) and is in contact with the rolling ring (4); the other end of the measuring rod (8) extends out of the fixed sleeve (7) and is provided with an indicating mark (2) at the end for corresponding the scale position of the scale (5).

2. A PTA device oxidation dryer roll ring displacement monitoring indicator according to claim 1, wherein, When the rolling ring (4) does not produce displacement and one end of the measuring rod (8) is in contact with the rolling ring (4), the indicating mark (2) points to the zero scale line of the scale (5).

3. A PTA device oxidation dryer roll ring displacement monitoring indicator according to claim 2, wherein, The scale (5) is fixedly connected to the outer surface of the fixed sleeve (7) through a fixed block (6) and is parallel to the axis of the fixed sleeve (7).

4. A PTA device oxidation dryer roll ring displacement monitoring indicator according to claim 3, wherein, The end of the measuring rod (8) provided with the indicating mark (2) is provided with a handle (1), which is used for pushing the measuring rod (8) to slide in the fixed sleeve (7) and the protective cover (9) to be in contact with the rolling ring (4).

5. A PTA device oxidation dryer roll ring displacement monitoring indicator according to claim 4, wherein, The end of the measuring rod (8) in contact with the rolling ring (4) is conical.

6. A PTA device oxidation dryer roll displacement monitoring indicator according to claim 1, wherein, The indicating mark (2) is fixedly arranged on the outer surface of the measuring rod (8) through welding.

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