A multi-layer paddle stirrer for a silicone oil synthesis reaction kettle

Abstract

The utility model discloses a multilayer paddle agitator for silicone oil synthetic reaction kettle belongs to chemical reaction equipment technical field, and this agitator includes agitator main part mechanism, contraction mechanism and positioning mechanism, and agitator main part mechanism includes motor, stirring shaft, flat paddle and assembly mechanism, the outer wall of stirring shaft has a plurality of annular grooves along its axial direction, and the contraction mechanism includes the fixed sleeve of bearing sleeve setting in stirring shaft, the positioning plate fixedly connected in fixed sleeve lower extreme, the lifting sleeve of sliding sleeve setting outside stirring shaft, the tripod leg of rotary connection in positioning plate and connecting rod. The utility model discloses through the synergistic effect of contraction mechanism and positioning mechanism, utilizes the locking of the clamping joint of round wheel and annular groove, solves the problem that the height of existing agitator is fixed, cannot adapt to different depth reaction kettle, and simultaneously realizes the detachable installation of flat paddle through assembly mechanism, and the convenient adjustment, wide application range.

Description

Technical Field

[0001] This utility model relates to the field of chemical reaction equipment technology, and in particular to a multi-layer paddle stirrer for a silicone oil synthesis reactor. Background Technology

[0002] In the synthesis of chemical products such as silicone oil, the reactor is an essential piece of equipment. As a key component of the reactor, the stirrer's performance directly affects the uniformity of material mixing, heat transfer efficiency, and the final product quality, and is crucial for ensuring that the reaction proceeds fully.

[0003] Currently, the traditional agitators used in silicone oil synthesis reactors are usually designed with a fixed structure. The length of the agitator shaft and the number and position of the agitator blades are all pre-set according to the specific model of the reactor and the specific production process. This integrated design performs reasonably well in standardized, large-scale continuous production.

[0004] However, in research and development, pilot-scale, intermediate-scale, or flexible production scenarios involving multiple varieties and small batches, it is often necessary to use reactors of different volumes and depths to cope with changing experimental conditions or production needs. At this time, the limitations of traditional fixed agitators become apparent. Their fixed stirring height cannot adapt to reactors of different depths, resulting in either agitators that are too long to be placed in shallow reactors or too short to reach the materials at the bottom of deep reactors, creating stirring blind spots. This seriously affects the versatility and applicability of the equipment, forcing companies to purchase agitators of various specifications to match different reactors. This not only increases equipment procurement and storage costs but also reduces the flexibility of production scheduling.

[0005] Therefore, this invention proposes a multi-layer paddle stirrer for a silicone oil synthesis reactor to address the shortcomings of existing technologies. Utility Model Content

[0006] In view of the problems of fixed structure, inability to adjust stirring height, and difficulty in adapting to reactors of different depths in the existing technology of multi-layer paddle agitators for silicone oil synthesis reactors, this utility model aims to provide a multi-layer paddle agitator for silicone oil synthesis reactors with improved structure that can effectively solve the above problems.

[0007] This utility model provides a multi-layer impeller agitator for a silicone oil synthesis reactor, comprising: an agitator main body mechanism, the agitator main body mechanism including a motor, an agitator shaft, a flat impeller sleeved on the agitator shaft and an assembly mechanism for fixing the flat impeller; and a retraction mechanism and a positioning mechanism.

[0008] The combination of the shrinking mechanism and the positioning mechanism constitutes the core innovative structure of this utility model. The outer wall of the stirring shaft is provided with multiple annular grooves along its axial direction. The shrinking mechanism includes a fixed sleeve sleeved on the stirring shaft via a bearing, a positioning plate fixedly connected to the lower end of the fixed sleeve, a lifting sleeve slidably sleeved on the outside of the stirring shaft, and a tripod leg and connecting rod rotatably connected to the lower surface of the positioning plate.

[0009] Furthermore, one end of the connecting rod is rotatably connected to the tripod leg, and the other end is rotatably connected to the lifting sleeve. The positioning mechanism includes a push rod slidably installed on the lifting sleeve and a wheel rotatably connected to one end of the push rod. The wheel is adapted to engage with one of the annular grooves. The opening and closing action of the tripod leg drives the lifting sleeve to slide along the stirring shaft via the connecting rod. The engagement of the wheel of the positioning mechanism with the annular groove enables reliable adjustment and locking of the overall stirring height.

[0010] Preferably, the assembly mechanism specifically includes a thread formed on the outer wall of the stirring shaft and a nut screwed into the thread, and the flat paddle is clamped and fixed to the nut. This detachable connection method not only facilitates the installation and removal of the flat paddle, but also allows for flexible adjustment of the vertical position of the flat paddle on the stirring shaft according to process requirements.

[0011] Preferably, in order to further clarify the fixing method of the assembly mechanism, the inner wall of the flat paddle is also provided with a texture that matches the thread. The flat paddle itself can be screwed onto the stirring shaft for initial positioning and then locked by the nut, which enhances the reliability of the connection.

[0012] Preferably, the main body of the agitator includes multiple flat blades, which are arranged in an axial array along the agitation shaft by multiple assembly mechanisms to form a multi-layer agitation structure to adapt to the needs of materials with different viscosities or different agitation intensities.

[0013] Preferably, in order to ensure stable operation between the stirring shaft and the stationary support structure when the stirring shaft rotates, the outer ring of the bearing is fixed to the inner wall of the fixed sleeve, and the inner ring of the bearing is fixedly connected to the stirring shaft. The relative rotation of the inner and outer rings of the bearing achieves effective isolation between the moving and stationary components.

[0014] Preferably, in order to reliably fix the bearing axially, the positioning plate consists of two pieces arranged vertically. The upper and lower positioning plates are fixedly connected to the fixing sleeve by bolts. The bearing is axially clamped between the upper and lower positioning plates to prevent it from moving axially during operation.

[0015] Preferably, to prevent the positioning mechanism from accidentally loosening after locking, the positioning mechanism further includes a positioning rod, which is pluggably installed in the lifting sleeve. When inserted, the positioning rod abuts against the push rod to lock the position of the push rod a second time, thereby improving the safety of the adjustment mechanism.

[0016] Preferably, the connecting rod is rotatably connected to the inner wall of the tripod leg. This arrangement allows the connecting rod to move inward when the tripod leg is retracted, resulting in a more compact structure.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of fixed stirrer height and inability to adapt to stirring vessels of different depths in the prior art by setting a retraction mechanism composed of tripod legs, connecting rods, lifting sleeves, fixing sleeves and positioning mechanisms, and locking by cooperating the round wheel with the annular groove on the stirring shaft. It achieves the technical effect of simple structure, convenient height adjustment and wide applicability.

[0018] 2. This utility model solves the problem that the existing stirring blades are mostly one-piece structures, which are not easy to disassemble, clean, or adjust the number of layers by setting threads on the stirring shaft and using a nut to fix the flat blade. It achieves the technical effect that the flat blade can be easily disassembled, multiple blades can be freely combined according to process requirements, and maintenance and cleaning are convenient.

[0019] 3. This utility model solves the problem of unstable support structure or vibration that may occur when the stirring shaft rotates by setting a bearing between the fixed sleeve and the rotating stirring shaft, and connecting the fixed sleeve to the tripod legs through the positioning plate to form a static support. It achieves the technical effect of reliably decoupling the rotating parts from the static support parts, ensuring smooth operation, and high overall stability of the stirrer. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a multi-layer impeller agitator for a silicone oil synthesis reactor proposed in this utility model; Figure 2 This is a schematic diagram of the shrinkage mechanism of a multi-layer paddle stirrer for a silicone oil synthesis reactor proposed in this utility model. Figure 3 This is a schematic diagram of the tripod leg structure of a multi-layer paddle stirrer for a silicone oil synthesis reactor proposed in this utility model. Figure 4 This is a schematic diagram of the assembly mechanism of a multi-layer impeller agitator for a silicone oil synthesis reactor proposed in this utility model. Figure 5 This is a schematic diagram of the circular wheel part of a multi-layer impeller agitator for a silicone oil synthesis reactor proposed in this utility model; Figure 6 This is a schematic diagram of the annular groove structure of the stirring shaft of a multi-layer paddle stirrer for a silicone oil synthesis reactor proposed in this utility model.

[0021] Legend: 1. Main body of the mixer; 101. Motor; 102. Mixing shaft; 103. Flat paddle; 2. Retraction mechanism; 201. Tripod leg; 202. Lifting sleeve; 203. Fixing sleeve; 204. Bearing; 205. Positioning plate; 206. Connecting rod; 3. Assembly mechanism; 301. Thread; 302. Nut; 4. Positioning mechanism; 401. Positioning rod; 402. Gear; 403. Push rod; 404. Annular groove. Detailed Implementation

[0022] 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.

[0023] Please refer to Figures 1 to 6 This utility model provides a multi-layer impeller agitator for a silicone oil synthesis reactor, which aims to solve the problems of fixed agitator structure, inability to adjust height, and inconvenience of disassembling impeller blades in the prior art.

[0024] The mixer includes a main mixer body 1, which includes a motor 101, a mixing shaft 102 connected to the output end of the motor 101, a flat paddle 103 sleeved on the mixing shaft 102, and an assembly mechanism 3 for fixing the flat paddle 103. The mixer also includes a shrinking mechanism 2 and a positioning mechanism 4. The outer wall of the mixing shaft 102 is provided with a plurality of annular grooves 404 along its axial direction.

[0025] The retraction mechanism 2 includes a fixed sleeve 203, a positioning plate 205, a lifting sleeve 202, a tripod leg 201, and a connecting rod 206. The fixed sleeve 203 is sleeved on the outside of the stirring shaft 102 via a bearing 204. The positioning plate 205 is fixedly connected to the lower end of the fixed sleeve 203. The outer ring of the bearing 204 is fixed on the inner wall of the fixed sleeve 203. The inner ring of the bearing 204 is fixedly connected to the stirring shaft 102. The positioning plate 205 consists of two pieces arranged vertically. The upper and lower positioning plates 205 are fixedly connected to the fixed sleeve 203 by bolts. The bearing 204 is axially clamped between the upper and lower positioning plates 205.

[0026] like Figure 3As shown, the tripod leg 201 is rotatably connected to the lower surface of the positioning plate 205 below, the lifting sleeve 202 is slidably sleeved on the outside of the stirring shaft 102, one end of the connecting rod 206 is rotatably connected to the inner side wall of the tripod leg 201, and the other end of the connecting rod 206 is rotatably connected to the lifting sleeve 202.

[0027] like Figure 5 As shown, the positioning mechanism 4 includes a push rod 403 slidably mounted on the lifting sleeve 202 and a wheel 402 rotatably connected to one end of the push rod 403. The wheel 402 is adapted to be engaged with one of the annular grooves 404. The positioning mechanism 4 also includes a positioning rod 401, which is pluggably mounted on the lifting sleeve 202. When inserted, the positioning rod 401 abuts against the push rod 403.

[0028] Assembly mechanism 3 includes a thread 301 formed on the outer wall of the stirring shaft 102, and a nut 302 screwed onto the thread 301. This assembly mechanism 3 is used to fix the paddle 103 onto the stirring shaft 102. Meanwhile, please refer to... Figure 4 The inner wall of the flat paddle 103 is also provided with grooves that match the thread 301, which allows the flat paddle 103 to be screwed and fixed onto the thread 301 of the stirring shaft 102.

[0029] In the assembled state, the flat paddle 103 is clamped and fixed to the nut 302. By tightening the nut 302, the flat paddle 103 is axially locked in the predetermined position on the stirring shaft 102, ensuring that the flat paddle 103 can be easily installed, removed or repositioned on the stirring shaft 102.

[0030] The main body of the stirrer 1 may include multiple flat blades 103. The multiple flat blades 103 are arranged in an array along the axial direction of the stirring shaft 102 through multiple assembly mechanisms 3 to achieve the function of multi-layer stirring. The rotation drive of the stirring shaft 102 is provided by a motor 101 fixed to the upper end of the stirring shaft 102.

[0031] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, in order to achieve stable rotation of the stirring shaft 102, please refer to... Figure 2 The inner wall of the fixed sleeve 203 is fixed with the outer ring of the bearing 204, and the inner ring of the bearing 204 is fixedly connected to the stirring shaft 102.

[0032] In another preferred embodiment, in order to axially limit the bearing 204, there are two positioning plates 205 arranged vertically. The upper and lower positioning plates 205 are fixedly connected to the fixing sleeve 203 by bolts, and the bearing 204 is axially clamped between the upper and lower positioning plates 205.

[0033] As another preferred embodiment, to lock the position of push rod 403, please refer to... Figure 5 The positioning mechanism 4 also includes a positioning rod 401, which is detachably mounted on the lifting sleeve 202. When inserted, the positioning rod 401 abuts against the push rod 403.

[0034] The working principle of this utility model of a multi-layer paddle agitator for a silicone oil synthesis reactor is as follows: When it is necessary to install the flat paddle 103, the inner wall of the flat paddle 103, which has a groove that matches the thread 301, can be screwed onto the thread 301 on the outer wall of the stirring shaft 102. Then, the nut 302 is screwed onto the thread 301, and by tightening the nut 302, the flat paddle 103 is clamped and fixed to the nut 302, thus fixing the flat paddle 103. This process can be repeated to install multiple flat paddles 103, so that the multiple flat paddles 103 are arranged in an array along the axial direction of the stirring shaft 102 through multiple assembly mechanisms 3.

[0035] When it is necessary to adjust the height of the stirring shaft 102, first pull out the positioning rod 401. At this time, the push rod 403 can be slidably installed in the lifting sleeve 202. Pull the push rod 403 outward, and the push rod 403 will drive the wheel 402 rotatably connected to one end of it to disengage from the annular groove 404 that is fitted and engaged. At this time, the lifting sleeve 202 can be slidably fitted outside the stirring shaft 102. By retracting or opening the tripod leg 201 rotatably connected to the lower surface of the positioning plate 205, the tripod leg 201 drives the lifting sleeve 202 to move up and down along the stirring shaft 102 through the rotatably connected connecting rod 206. When it moves to the appropriate height, push the push rod 403 inward, so that the wheel 402 is fitted and engaged in one of the annular grooves 404 at the target position. Finally, reinsert the positioning rod 401. The positioning rod 401 abuts against the push rod 403 in the inserted state, completing the locking of the positioning mechanism 4.

[0036] After the preparation is completed, the motor 101 is started. The motor 101 is connected to the output end of the stirring shaft 102 and drives the stirring shaft 102 to rotate. The stirring shaft 102 then drives multiple flat paddles 103 to rotate for stirring. During the rotation of the stirring shaft 102, it remains stationary through the fixed sleeve 203 fitted onto the stirring shaft 102 by the bearing 204. The inner ring of the bearing 204 is fixedly connected to the stirring shaft 102, and the outer ring is fixed to the inner wall of the fixed sleeve 203. The bearing 204 is also axially clamped between two positioning plates 205 set at the top and bottom, ensuring the rotational stability of the stirring shaft 102.

[0037] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A multi-layer impeller agitator for a silicone oil synthesis reactor, comprising an agitator body mechanism (1), wherein the agitator body mechanism (1) comprises a motor (101), an agitator shaft (102) connected to the output end of the motor (101), a flat impeller (103) sleeved on the agitator shaft (102), and an assembly mechanism (3) for fixing the flat impeller (103). Its features are, The stirrer also includes a shrinking mechanism (2) and a positioning mechanism (4); The outer wall of the stirring shaft (102) is provided with a plurality of annular grooves (404) along its axial direction. The shrinking mechanism (2) includes a fixed sleeve (203) sleeved on the stirring shaft (102) via a bearing (204), a positioning plate (205) fixedly connected to the lower end of the fixed sleeve (203), a lifting sleeve (202) slidably sleeved outside the stirring shaft (102), a tripod leg (201) and a connecting rod (206) rotatably connected to the lower surface of the positioning plate (205), one end of the connecting rod (206) being rotatably connected to the tripod leg (201) and the other end being rotatably connected to the lifting sleeve (202); The positioning mechanism (4) includes a push rod (403) slidably mounted on the lifting sleeve (202) and a wheel (402) rotatably connected to one end of the push rod (403), the wheel (402) being adapted to engage with one of the annular grooves (404).

2. The multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 1, characterized in that, The assembly mechanism (3) includes a thread (301) formed on the outer wall of the stirring shaft (102) and a nut (302) screwed into the thread (301), and the flat paddle (103) is clamped and fixed to the nut (302).

3. The multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 1, characterized in that, The inner wall of the fixed sleeve (203) is fixed with the outer ring of the bearing (204), and the inner ring of the bearing (204) is fixedly connected to the stirring shaft (102).

4. A multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 3, characterized in that, The positioning plates (205) are two plates arranged vertically. The upper and lower positioning plates (205) are fixedly connected to the fixing sleeve (203) by bolts. The bearing (204) is axially clamped between the upper and lower positioning plates (205).

5. A multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 1, characterized in that, The positioning mechanism (4) further includes a positioning rod (401), which is pluggably mounted on the lifting sleeve (202). The positioning rod (401) abuts against the push rod (403) in the inserted state.

6. A multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 1, characterized in that, The connecting rod (206) is rotatably connected to the inner wall of the tripod leg (201).

7. A multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 2, characterized in that, The main body of the agitator (1) includes a plurality of the flat blades (103), which are arranged in an axial array along the agitator shaft (102) by a plurality of the assembly mechanisms (3).

8. A multi-layer paddle stirrer for a silicone oil synthesis reactor according to claim 2, characterized in that, The inner wall of the flat paddle (103) is provided with a pattern that matches the thread (301).

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