Fixing and protecting device for stirrer shaft of crystallizer

Abstract

The utility model discloses a fixing and protecting device for a stirrer shaft of a crystallizer. The device comprises a fixing support, an inner sleeve, a polytetrafluoroethylene pad and an outer sleeve, the inner sleeve is fixed to a stirrer shaft of the crystallizer, the outer sleeve is arranged outside the inner sleeve in a sleeving mode, the polytetrafluoroethylene pad is installed between the inner sleeve and the outer sleeve, the outer sleeve is fixed to the fixing support, and the fixing support is fixed to the crystallizer.

Description

Technical Field

[0001] The present application relates to the technical field of ammonium phosphate production equipment, and in particular to a fixing and protecting device for a crystallizer agitator shaft. Background Art

[0002] In vacuum crystallization production, agitator shaft wear is a common and serious challenge. Due to the constant torque and friction the agitator shaft is subjected to, coupled with material crystallization and solution corrosion during the production process, the agitator shaft is prone to wear. This directly affects the agitator's stability and reliability, and may even cause the agitator shaft to break, affecting the normal operation of the entire device.

[0003] Currently, a common solution is to install a fixture on the agitator shaft's fixed support, typically using a cross or Pozi-shaped fixture and using a PTFE pad at the contact point. However, this traditional fixture is prone to wear and poor durability. It can also easily cause the agitator shaft to break after prolonged operation, impacting normal operation of the device.

[0004] Traditional fixtures often use materials such as PTFE pads, which are susceptible to wear and corrosion from the material, leading to fixture failure and increased wear on the agitator shaft. Especially in production units where shutdown is a must, if the fixture fails, the agitator shaft may directly rub against the fixture sleeve, further exacerbating wear and seriously affecting the stability and reliability of the production unit. Utility Model Content

[0005] The present application provides a fixing protection device for a crystallizer agitator shaft, comprising:

[0006] A fixed bracket, an inner sleeve, a PTFE pad and an outer sleeve, wherein the inner sleeve is fixed to the crystallizer agitator shaft, the outer sleeve is sleeved outside the inner sleeve, the PTFE pad is installed between the inner sleeve and the outer sleeve, the outer sleeve is fixed on the fixed bracket, and the fixed bracket is fixed on the crystallizer.

[0007] Optionally, the inner sleeve is composed of two semicircular structural members, and the two semicircular structural members are fixed by bolts.

[0008] Optionally, the outer sleeve is composed of two semicircular structural members, and the two semicircular structural members are fixed by bolts.

[0009] Optionally, four bolt connection points are provided on the structural member of the inner sleeve, and the four connection points are respectively distributed at the four corners of the structural member.

[0010] Optionally, four bolt connection points are provided on the structural member of the outer sleeve, and the four connection points are respectively distributed on the left and right sides of the structural member.

[0011] Optionally, a sealing gasket is provided at the end surface where the PTFE pad is connected to the inner sleeve.

[0012] Optionally, lubricating oil is filled between the PTFE pad and the inner sleeve, and between the PTFE pad and the outer sleeve.

[0013] Optionally, a connecting structure for connecting to the fixing bracket is provided on the outer sleeve.

[0014] It can be seen from the above technical solutions that this application has the following advantages:

[0015] 1. The use of wear-resistant materials such as PTFE pads can effectively reduce the friction and wear between the agitator shaft and the fixing device, thus extending the service life of the equipment.

[0016] 2. The fixed bracket is firmly connected to the crystallizer, and the agitator shaft is fixed by the fixing device of the inner and outer sleeves to ensure that the agitator shaft maintains a stable position and direction during operation.

[0017] 3. The setting of the PTFE pad effectively isolates the contact between the agitator shaft and the external environment, prevents corrosion and pollution, and protects the surface of the agitator shaft from damage.

[0018] 4. The fixed bracket is firmly connected to the crystallizer, and the outer sleeve is fixed on the fixed bracket. It is stable and reliable and not easy to loosen or fall off, ensuring the safe operation of the equipment.

[0019] 5. Even if the PTFE gasket is worn and not replaced in time, the agitator shaft will not be worn. Instead, the wear between the two inner and outer sleeves will be reduced, effectively protecting the agitator shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of a structural embodiment of an embodiment of the fixing protection device for the crystallizer agitator shaft provided in this application. DETAILED DESCRIPTION

[0021] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only used to illustrate the relative position relationship between the various components or components, and do not particularly limit the specific installation orientation of the various components or components.

[0022] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0024] In addition, the structures, proportions, sizes, etc. drawn in the drawings in this application are only used to match the contents disclosed in the specification for those skilled in the art to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0025] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in this application. Obviously, the embodiments described are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0026] See also Figure 1 The present application first provides an embodiment of a fixing protection device for a crystallizer agitator shaft, the embodiment comprising:

[0027] Fixed bracket 01, inner sleeve 02, PTFE pad 03 and outer sleeve 04, the inner sleeve 02 is fixed to the crystallizer agitator shaft, the outer sleeve 04 is sleeved outside the inner sleeve 02, the PTFE pad 03 is installed between the inner sleeve 02 and the outer sleeve 04, the outer sleeve 04 is fixed on the fixed bracket 01, and the fixed bracket 01 is fixed on the crystallizer.

[0028] This embodiment is a specific design scheme for a fixed protection device for a crystallizer agitator shaft. Its main components include a fixed bracket 01, an inner sleeve 02, a PTFE pad 03, and an outer sleeve 04. The following is a detailed description of this embodiment:

[0029] Fixing bracket 01: Fixing bracket 01 is the main supporting component of the entire device, used to fix the entire fixture on the crystallizer. Fixing bracket 01 can be made of strong and durable materials to ensure the stability and reliability of the device.

[0030] Inner Sleeve 02: Inner Sleeve 02 is a component used to securely connect to the crystallizer agitator shaft. Its internal structure matches the agitator shaft to ensure the stability of the fixture. Inner Sleeve 02 can be composed of two semicircular structural members, which are fixed to the agitator shaft with bolts to ensure a good fixing effect.

[0031] PTFE Gasket 03: PTFE Gasket 03 is used to reduce friction between inner sleeve 02 and outer sleeve 04. It can be made of wear-resistant and corrosion-resistant materials such as polytetrafluoroethylene (PTFE). Installed between inner sleeve 02 and outer sleeve 04, PTFE Gasket 03 reduces friction, prevents damage, and protects the stability of the fixture and the surface of the agitator shaft.

[0032] Outer Sleeve 04: Outer sleeve 04 is the outer protective cover of the fixture, fitting over the inner sleeve 02 to protect and secure the internal components. Outer sleeve 04 can be composed of two semicircular structural members, bolted to the fixing bracket 01 to ensure a secure connection and stability.

[0033] In the entire embodiment, the inner sleeve 02 is fixedly connected to the agitator shaft, the Teflon pad 03 plays a friction-reducing role between the inner sleeve 02 and the outer sleeve 04, and the outer sleeve 04 is fixed on the fixed bracket 01. Through this design, the agitator shaft can be effectively protected and the stability and reliability of the fixing device can be guaranteed.

[0034] In an optional embodiment, the inner sleeve 02 is composed of two semicircular structural members, and the two semicircular structural members are fixed by bolts.

[0035] In this alternative embodiment, the inner sleeve 02 is constructed from two semicircular structural members secured by bolts to ensure a secure connection to the agitator shaft. This design allows the inner sleeve 02 to more flexibly accommodate agitator shafts of varying diameters, while also facilitating assembly and maintenance.

[0036] Since the inner sleeve 02 adopts two adjustable semicircular structural parts, it can be adjusted according to actual needs to adapt to agitator shafts of different diameters, thereby enhancing the flexibility and applicability of the device.

[0037] The two semicircular structural parts are fixed by bolts, making the assembly process simpler and faster, reducing manual operation time and costs.

[0038] During maintenance, the inner sleeve 02 can be disassembled and replaced more conveniently, which saves maintenance time and improves the maintainability of the device.

[0039] In an optional embodiment, the outer sleeve 04 is composed of two semicircular structural members, and the two semicircular structural members are fixed by bolts.

[0040] Likewise, the outer sleeve 04 may also be composed of two semicircular structural members.

[0041] In an optional embodiment, four bolt connection points 05 are provided on the structural member of the inner sleeve 02 , and the four connection points are respectively distributed at the four corners of the structural member.

[0042] In this optional embodiment, the inner sleeve 02 is provided with four bolt connection points 05, which are evenly distributed at the four corners of the structure. This design allows the inner sleeve 02 to be more evenly stressed and improves the fixing stability between the inner sleeve 02 and the agitator shaft.

[0043] By distributing the bolt connection points 05 on the four corners of the structural member, the inner sleeve 02 can be subjected to more uniform force when fixing the agitator shaft, effectively reducing the risk of local stress concentration and improving the stability and reliability of the device.

[0044] The setting of the four bolt connection points 05 makes the connection between the inner sleeve 02 and the agitator shaft more secure, can better resist the torque and vibration of the agitator shaft during operation, and effectively prevent the inner sleeve 02 from loosening or falling off.

[0045] The 05 bolt connection points distributed at the four corners of the structure make the device more convenient to install and disassemble, allowing operators to make adjustments and maintenance more easily, reducing maintenance costs and time.

[0046] This optimized design makes the fixing effect of the inner sleeve 02 more reliable, and can better meet the requirements of the vacuum crystallization production process for the stability and reliability of the agitator shaft.

[0047] In an optional embodiment, four bolt connection points 05 are provided on the structural member of the outer sleeve 04 , and the four connection points are respectively distributed on the left and right sides of the structural member.

[0048] In this optional embodiment, the design of the outer sleeve 04 is further optimized, as described below:

[0049] The outer sleeve 04 is provided with four bolt connection points 05, which are evenly distributed on the left and right sides of the structure. This design makes the connection between the outer sleeve 04 and the fixing bracket 01 more secure, improving the stability and reliability of the entire fixing device.

[0050] By distributing the bolt connection points 05 on the left and right sides of the structural member, the outer sleeve 04 can be subjected to more uniform force when fixed on the bracket 01, effectively reducing the risk of local stress concentration and improving the stability and reliability of the device.

[0051] The setting of the four bolt connection points 05 makes the connection between the outer sleeve 04 and the fixed bracket 01 more secure, can better resist the torque and vibration of the agitator shaft during operation, and effectively prevent the outer sleeve 04 from loosening or falling off.

[0052] The design of the bolt connection points 05 distributed on the left and right sides makes the structure of the outer sleeve 04 more stable, can be better fixed on the fixed bracket 01, is not prone to tilting or swinging, and ensures the safe operation of the device.

[0053] This optimized design further improves the fixing effect of the outer sleeve 04, making the entire fixing device more firm and stable, and can better meet the fixing and protection requirements for the agitator shaft in the vacuum crystallization production process.

[0054] In an optional embodiment, a sealing gasket 06 is provided at the end surface where the PTFE pad 03 is connected to the inner sleeve 02 .

[0055] In this optional embodiment, a sealing gasket 06 is provided at the end surface where the PTFE pad 03 is connected to the inner sleeve 02, as described in detail as follows:

[0056] A sealing gasket 06 is installed at the end where the PTFE gasket 03 connects to the inner sleeve 02. This gasket 06 is typically made of a wear-resistant and corrosion-resistant material, such as rubber or silicone. The function of the sealing gasket 06 is to ensure a reliable seal at the connection between the inner sleeve 02 and the PTFE gasket 03, preventing foreign matter from entering the internal space. It also prevents the leakage of internal lubricants or oil, keeping the fixture clean and stable.

[0057] The provision of the sealing gasket 06 effectively prevents external impurities, dust, etc. from entering the internal space, protects internal components such as the inner sleeve 02 and the PTFE pad 03, and extends their service life.

[0058] The presence of the sealing gasket 06 can effectively prevent the internal lubricant or lubricating oil from leaking out, keep the fixture clean and stable, and reduce maintenance costs and frequency.

[0059] Sealing gasket 06 can improve the sealing of the connection, reduce the risk of leakage, ensure the stability and reliability of the fixing device, and further protect the agitator shaft.

[0060] In an optional embodiment, lubricating oil is filled between the PTFE pad 03 and the inner sleeve 02 , and between the PTFE pad 03 and the outer sleeve 04 .

[0061] In this optional embodiment, lubricating oil is filled between the PTFE pad 03 and the inner sleeve 02, and between the PTFE pad 03 and the outer sleeve 04. Lubricating oil-filled spaces are designed at the contact surfaces between the PTFE pad 03 and the inner sleeve 02, and between the PTFE pad 03 and the outer sleeve 04. The lubricating oil can be selected based on the specific operating environment and temperature conditions to ensure good lubrication during equipment operation.

[0062] The lubricating oil is filled in the contact surface between the PTFE pad 03 and the inner and outer sleeves 04, which can effectively reduce friction and wear, reduce energy loss during operation of the device, and extend the service life of the inner and outer sleeves 04 and the agitator shaft.

[0063] The presence of lubricating oil allows for smoother movement between the agitator shaft and the fixture, reducing energy loss and improving the device's operating efficiency and stability. The lubricating oil also prevents corrosion and contamination on the contact surfaces between the PTFE pad 03 and the inner and outer sleeves 04, protecting the fixture's surface from damage and extending its service life.

[0064] In an optional embodiment, a connection structure 07 for connecting to the fixing bracket 01 is provided on the outer sleeve 04 .

[0065] In this optional embodiment, outer sleeve 04 is provided with a connecting structure 07 for connecting to fixing bracket 01. The design of outer sleeve 04 takes into account the connection with fixing bracket 01, and therefore, the connecting structure 07 is provided on the outer surface of outer sleeve 04. This connecting structure 07 generally includes a protrusion, a groove, a hole, or a thread, and is used to connect with a corresponding structural component on fixing bracket 01 to achieve a secure fixation between outer sleeve 04 and fixing bracket 01.

[0066] The connection structure 07 can ensure that the connection between the outer sleeve 04 and the fixing bracket 01 is firm and reliable, preventing loosening or falling off during operation of the equipment, thereby improving the stability and reliability of the entire fixing device.

[0067] After designing the connection structure 07, the installer can more easily connect the outer sleeve 04 to the fixed bracket 01, reducing the manual operation time and difficulty during the installation process and improving the installation efficiency of the device.

[0068] The design of the connection structure 07 makes the connection between the outer sleeve 04 and the fixed bracket 01 tighter, making it easier for maintenance personnel to perform inspection and maintenance work, discover and solve problems in a timely manner, and ensure the normal operation of the device.

[0069] It should be noted that the above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fixing and protecting device for a crystallizer agitator shaft, characterized in that: include: A fixed bracket, an inner sleeve, a PTFE pad and an outer sleeve, wherein the inner sleeve is fixed to the crystallizer agitator shaft, the outer sleeve is sleeved outside the inner sleeve, the PTFE pad is installed between the inner sleeve and the outer sleeve, the outer sleeve is fixed on the fixed bracket, and the fixed bracket is fixed on the crystallizer.

2. The fixing and protecting device for the crystallizer agitator shaft according to claim 1, characterized in that: The inner sleeve is composed of two semicircular structural parts, and the two semicircular structural parts are fixed by bolts.

3. The fixing and protecting device for the crystallizer agitator shaft according to claim 1, characterized in that: The outer sleeve is composed of two semicircular structural parts, and the two semicircular structural parts are fixed by bolts.

4. The fixing and protecting device for the crystallizer agitator shaft according to claim 2, characterized in that: The inner sleeve structural member is provided with four bolt connection points, and the four connection points are respectively distributed at the four corners of the structural member.

5. The fixing and protecting device for the crystallizer agitator shaft according to claim 3, characterized in that: The outer sleeve structural member is provided with four bolt connection points, and the four connection points are respectively distributed on the left and right sides of the structural member.

6. The fixing and protecting device for the crystallizer agitator shaft according to claim 1, characterized in that: A sealing gasket is provided at the end surface where the PTFE pad is connected to the inner sleeve.

7. The fixing and protecting device for the crystallizer agitator shaft according to claim 1, characterized in that: Lubricating oil is filled between the PTFE pad and the inner sleeve, and between the PTFE pad and the outer sleeve.

8. The fixing and protecting device for the crystallizer agitator shaft according to claim 1, characterized in that: The outer sleeve is provided with a connecting structure for connecting with the fixing bracket.

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