Improved multilayer turbulent flow composite frame type stirrer

Abstract

An improved multilayer turbulent flow composite frame type stirrer relates to the technical field of frame type stirrers and comprises a stirring shaft, a plurality of fixing rings are fixedly connected to the stirring shaft, inner-section transverse paddles are fixedly connected to the two sides of each fixing ring, outer-section transverse paddles capable of being reset are slidably connected into the inner-section transverse paddles, and the end of the outer-section transverse paddle located on one side is fixed to a vertical paddle; scrapers are fixedly connected to the vertical paddles, the scrapers and the inner wall of the reaction kettle are arranged at intervals, and when the stirring shaft rotates, the scrapers are driven to move to be connected with the inner wall of the reaction kettle; according to the improved multilayer turbulent flow composite frame type stirrer provided by the utility model, the centrifugal force of the scraping plate is controlled by controlling the rotating speed of the stirring shaft, so that the scraping plate only cleans the inner wall of a reaction kettle when needed, and the problem that the scraping plate is always connected with the inner wall of the reaction kettle and is quickly abraded can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of frame stirrers, and more specifically, to an improved multi-layer turbulent flow composite frame stirrer. Background Art

[0002] Frame stirrers are generally used to stir porridge-like materials. There is a gap between the stirring paddles on the existing frame stirrers and the inner wall of the reaction kettle. When the materials in the reaction kettle hang on the wall and cool down, it will cause uneven heat transfer, thus affecting the mixing of the materials. The existing publication number CN115382486A discloses an improved frame stirrer with frame stirring paddles. Spacing scrapers are assembled on the stirring paddles, and the spacing scrapers are arranged at intervals. The spacing scrapers on the stirring paddles are used to fit the inner wall of the reaction kettle, so as to timely remove the materials attached to the inner wall of the reaction kettle and timely peel off the materials attached to the inner wall of the reaction kettle, thereby making the heat transfer of the materials uniform.

[0003] At present, by assembling spacing scrapers on the stirring paddles, the materials on the inner wall can indeed be peeled off in time. However, the spacing scrapers are always in contact with the inner wall of the reaction kettle, and the spacing scrapers are easily worn, reducing their effect. Therefore, in view of this current situation, the utility model proposes an improved multi-layer turbulent flow composite frame stirrer to solve the deficiencies in the above technical background. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the problem that the spacing scrapers on the existing frame stirrers are always in contact with the inner wall of the reaction kettle, and the scrapers are easily worn, resulting in reduced functions.

[0005] The purpose and effect of an improved multi-layer turbulent flow composite frame stirrer of the utility model are achieved by the following specific technical means: An improved multi-layer turbulent flow composite frame stirrer includes a stirring shaft. A plurality of fixing rings are fixedly connected to the stirring shaft. Inner-section cross paddles are fixedly connected to both sides of the fixing rings. An outer-section cross paddle that can be reset is slidably connected in the inner-section cross paddle. The end of the outer-section cross paddle on one side is fixed to a vertical paddle. Scrapers are fixedly connected to the vertical paddles. The scrapers are arranged at intervals with the inner wall of the reaction kettle. When the stirring shaft rotates, it drives the scrapers to move and contact the inner wall of the reaction kettle.

[0006] Further, a return spring is fixedly connected between the outer-section cross paddle and the inner-section cross paddle.

[0007] Further, a rotor is rotatably connected to the outer end position of the inner-section cross paddle near the outside. The outer-section cross paddle passes through and is slidably inserted in the rotor. The inner-section cross paddle is hollow, and a limiting mechanism is also arranged inside the inner-section cross paddle. The limiting mechanism is used to limit the outer-section cross paddle from not sliding relative to the inner-section cross paddle when rotating clockwise.

[0008] Further, a number of engaging teeth are provided on the inner wall of the inner-section horizontal paddle, and a hook tooth is provided at the inner-side end of the outer-section horizontal paddle. The hook tooth and the engaging teeth are arranged correspondingly. When the stirring shaft rotates clockwise, the hook tooth moves towards the direction close to the engaging teeth, so that the hook tooth and the engaging teeth are hooked and connected with each other. When the stirring shaft rotates counterclockwise, the hook tooth moves towards the direction away from the engaging teeth, so that the hook tooth and the engaging teeth do not touch each other.

[0009] Further, the scraping plates are arranged in a staggered manner on the vertical paddles.

[0010] Further, push plates are slidably connected to the inner-section horizontal paddles. The push plates are vertically arranged, and the upper and lower sides of the push plates are respectively sleeved on the adjacent inner-section horizontal paddles. The push plates are inclined.

[0011] Further, a collar is fixedly connected to the connection part between the push plate and the inner-section horizontal paddle. The collar is slidably sleeved on the inner-section horizontal paddle.

[0012] The beneficial effects of the present utility model are as follows:

[0013] The present utility model provides an improved multi-layer turbulent flow composite frame type stirrer. By controlling the rotation speed of the stirring shaft, the centrifugal force of the scraping plates is controlled, so that the scraping plates clean the inner wall of the reaction kettle only when needed, thereby avoiding the problem that the scraping plates are always in contact with the inner wall of the reaction kettle and wear quickly. At the same time, by switching the forward and reverse rotations of the stirring shaft, different forces can be applied to the push plates, and the push plates can move under the action of the forces, and then can push the stirring materials at different positions, so that the stirring effect of the materials near the stirring shaft is better. Description of the Drawings

[0014] Figure 1 is the overall main view sectional view of the present utility model with a reaction kettle.

[0015] Figure 2 is the top view sectional view of the present utility model.

[0016] Figure 3 is the schematic diagram of the cooperation and connection between the push plate and the inner-section horizontal paddle of the present utility model.

[0017] Figure 4 is the structural schematic diagram of the cooperation and connection between the scraping plate and the inner-section horizontal paddle of the present utility model.

[0018] Figure 5 For the present utility model Figure 2 is the enlarged schematic diagram at A in.

[0019] Figures 1-5 In which: 1 - stirring shaft, 2 - fixing ring, 3 - inner-section horizontal paddle, 301 - engaging teeth, 4 - outer-section horizontal paddle, 401 - hook tooth, 5 - vertical paddle, 6 - scraping plate, 7 - push plate, 701 - collar, 8 - rotor, 9 - return spring. Detailed Embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] As shown in the attached Figure 1 to the attached Figure 5 figures: An improved multi-layer turbulent composite frame stirrer includes a stirring shaft 1, and a plurality of fixing rings 2 are fixedly connected to the stirring shaft 1. The fixing rings 2 are sleeved on the stirring shaft 1. Specifically, three fixing rings 2 can be fixedly sleeved on the stirring shaft 1. Inner-section cross paddles 3 are fixedly connected to both sides of the fixing rings 2. An outer-section cross paddle 4 that can be reset is slidably connected in the inner-section cross paddle 3. Vertical paddles 5 are fixed to the ends of the outer-section cross paddles 4 on one side. Specifically, the ends of the outer-section cross paddles 4 on one side are all fixed to one vertical paddle 5. The inner-section cross paddles 3, the outer-section cross paddles 4 and the vertical paddles 5 form a frame stirrer paddle. Scrapers 6 are fixedly connected to the vertical paddles 5, and the scrapers 6 are arranged at an interval from the inner wall of the reaction kettle. When the stirring shaft 1 rotates, it drives the inner-section cross paddles 3 and the outer-section cross paddles 4 to rotate, and at the same time drives the vertical paddles 5 to rotate accordingly. When the vertical paddles 5 rotate, under the action of centrifugal force, it drives the outer-section cross paddles 4 to move in the inner-section cross paddles 3, and further drives the scrapers 6 on the vertical paddles 5 to move and contact the inner wall of the reaction kettle. Then, when rotating, the scrapers 6 can clean the inner wall of the reaction kettle, thereby avoiding uneven heat transfer. By controlling the rotation speed of the stirring shaft 1, the centrifugal force of the scrapers 6 can be controlled. When the stirring shaft 1 is controlled at a certain rotation speed, the scrapers 6 do not contact the inner wall of the reaction kettle, and the wear and tear of the scrapers 6 are low. When the stirring shaft 1 is controlled above a certain rotation speed, the scrapers 6 contact the inner wall of the reaction kettle, and the scrapers 6 start to clean the inner wall of the reaction kettle. The scrapers 6 only clean the inner wall of the reaction kettle when needed, thereby avoiding the problem that the scrapers 6 always contact the inner wall of the reaction kettle and wear quickly.

[0022] Among them, as Figure 2 shown, a return spring 9 is fixedly connected between the outer-section cross paddle 4 and the inner-section cross paddle 3, and the outer-section cross paddle 4 is driven to reset by the return spring 9.

[0023] Among them, as Figure 2As shown, a rotor 8 is rotatably connected to the outer end position of the inner cross paddle 3. The outer cross paddle 4 is inserted through and slidably connected to the rotor 8. The inner cross paddle 3 is hollow, and a return spring 9 is fixedly connected to the end of the part of the outer cross paddle 4 located inside the inner cross paddle 3, and the other end of the return spring 9 is fixedly connected to the inner wall of the inner cross paddle 3. A limiting mechanism is also provided inside the inner cross paddle 3, and the limiting mechanism is used to prevent the outer cross paddle 4 from sliding relative to the inner cross paddle 3 when rotating clockwise. Specifically, when the outer cross paddle 4 rotates counterclockwise, it normally slides relative to the inner cross paddle 3, and the scraper 6 can clean the inner wall of the reaction kettle. When the outer cross paddle 4 rotates clockwise, its sliding relative to the inner cross paddle 3 is restricted. Thus, when the stirring shaft 1 rotates counterclockwise, regardless of the rotation speed, the scraper 6 will not contact the inner wall of the reaction kettle, thereby increasing the range of adjustable rotation speed of the stirring shaft 1.

[0024] Among them, as Figure 2 , Figure 5 shown, a plurality of teeth 301 are provided on the inner wall of the inner cross paddle 3, and a hook tooth 401 is provided at the inner end of the outer cross paddle 4. The hook tooth 401 is arranged corresponding to the tooth 301. When the stirring shaft 1 rotates clockwise, the outer cross paddle 4 is slightly rotated by the force, and then the hook tooth 401 is driven to move towards the tooth 301. Under the action of centrifugal force, the hook tooth 401 and the tooth 301 are hooked and connected, and the outer cross paddle 4 does not move. When the stirring shaft 1 rotates counterclockwise, the outer cross paddle 4 is slightly rotated by the force, and then the hook tooth 401 is driven to move away from the tooth 301. Under the action of centrifugal force, the outer cross paddle 4 is stressed, and at this time the hook tooth 401 moves away from the tooth 301, and the outer cross paddle 4 can move out smoothly.

[0025] Among them, as Figure 1 shown, the scrapers 6 are arranged in a staggered manner on the vertical paddle 5. Specifically, by arranging the scrapers 6 in a staggered manner, the length of a single scraper 6 is shortened, avoiding damage due to the excessive length of the scraper 6. The staggered scrapers 6 can still clean the entire side wall of the reaction kettle.

[0026] Among them, as Figures 3 to 4 shown, push plates 7 are slidably connected to the inner cross paddle 3. The push plates 7 are vertically arranged. Specifically, the upper and lower sides of the push plates 7 are respectively sleeved on the adjacent inner cross paddles 3, and the push plates 7 are inclined. By arranging the push plates 7 near the stirring shaft 1, the push plates 7 are driven to rotate when the stirring shaft 1 rotates. The inclined push plates 7 can push the materials near the inner side outwards, thus avoiding the problem of poor stirring effect in the mixing dead zone near the stirring shaft 1. During the rotation of the stirring shaft 1, the push plates 7 move while stirring the materials. By switching the forward and reverse rotation of the stirring shaft 1, the push plates 7 can be stressed in different directions and move, and then can push and stir the materials at different positions, making the stirring effect of the materials near the stirring shaft 1 better.

[0027] Wherein, a collar 701 is fixedly connected to the connecting part of the push plate 7 and the inner-section cross paddle 3. The collar 701 is slidably sleeved on the inner-section cross paddle 3. By setting the material of the collar 701, the push plate 7 can be better slidably connected to the inner-section cross paddle 3.

[0028] Working principle: By controlling the rotation speed of the stirring shaft 1, the centrifugal force of the scraping plate 6 is controlled, so that the scraping plate 6 only cleans the inner wall of the reaction kettle when needed, thereby avoiding the problem that the scraping plate 6 is always in contact with the inner wall of the reaction kettle and wears quickly; when the stirring shaft 1 rotates clockwise, the outer-section cross paddle 4 is stressed and generates a slight rotation, and then drives the hook teeth 401 to move towards the direction close to the locking teeth 301. Under the action of centrifugal force, the hook teeth 401 and the locking teeth 301 are hooked and locked with each other, and the outer-section cross paddle 4 does not move; when the stirring shaft 1 rotates counterclockwise, the outer-section cross paddle 4 is stressed and generates a slight rotation, and then drives the hook teeth 401 to move away from the locking teeth 301. Under the action of centrifugal force, the outer-section cross paddle 4 is stressed. At this time, the hook teeth 401 are away from the locking teeth 301, and the outer-section cross paddle 4 can move out smoothly, and then can drive the scraping plate 6 to contact the inner wall of the reaction kettle for cleaning. When the stirring shaft 1 rotates counterclockwise, regardless of the rotation speed, the scraping plate 6 will not contact the inner wall of the reaction kettle, so as to increase the range of the rotation speed of the stirring shaft 1 that can be adjusted; during the rotation of the stirring shaft 1, the push plate 7 moves under stress while stirring the material. By switching the forward and reverse rotation of the stirring shaft 1, the push plate 7 can be stressed in different directions, and the push plate 7 can move under stress, and then can push and stir the material at different positions, so that the stirring effect of the material near the stirring shaft 1 is better.

Claims

1. An improved multi-layer turbulent composite frame agitator, comprising a stirring shaft (1), characterized in that: A plurality of fixing rings (2) are fixedly connected to the stirring shaft (1), inner transverse paddles (3) are fixedly connected to both sides of the fixing rings (2), a resettable outer transverse paddle (4) is slidably connected to the inner transverse paddle (3), and an end of the outer transverse paddle (4) located on one side is fixed to a vertical paddle (5); a scraper (6) is fixedly connected to each of the vertical paddles (5), and the scraper (6) is spaced apart from the inner wall of the reactor. When the stirring shaft (1) rotates, the scraper (6) is driven to move and connect with the inner wall of the reactor.

2. The improved multi-layer turbulent composite frame agitator according to claim 1, characterized in that: A return spring (9) is fixedly connected between the outer transverse paddle (4) and the inner transverse paddle (3).

3. The improved multi-layer turbulent composite frame agitator according to claim 2, characterized in that: The inner transverse paddle (3) is rotatably connected to a rotor (8) at an outer end position, the outer transverse paddle (4) penetrates and is slidably inserted into the rotor (8), the inner transverse paddle (3) is hollow, and a limiting mechanism is further provided inside the inner transverse paddle (3), the limiting mechanism being used to limit the outer transverse paddle (4) from sliding relative to the inner transverse paddle (3) when rotating clockwise.

4. The improved multi-layer turbulent composite frame agitator according to claim 3, characterized in that: A plurality of latching teeth (301) are provided on the inner wall of the inner transverse paddle (3), and a hooking tooth (401) is provided on the inner end of the outer transverse paddle (4), and the hooking tooth (401) and the latching tooth (301) are arranged correspondingly; when the stirring shaft (1) rotates clockwise, the hooking tooth (401) moves in a direction approaching the latching tooth (301), so that the hooking tooth (401) and the latching tooth (301) are hooked and engaged with each other; when the stirring shaft (1) rotates counterclockwise, the hooking tooth (401) moves in a direction away from the latching tooth (301), so that the hooking tooth (401) and the latching tooth (301) do not touch each other.

5. The improved multi-layer turbulent composite frame agitator according to claim 1, characterized in that: The scraper (6) is arranged in a staggered manner on the vertical propeller (5).

6. The improved multi-layer turbulent composite frame agitator according to claim 1, characterized in that: The inner transverse paddles (3) are all slidably connected to push plates (7), the push plates (7) are vertically arranged, and the upper and lower sides of the push plates (7) are respectively sleeved on adjacent inner transverse paddles (3), and the push plates (7) are inclined.

7. The improved multi-layer turbulent composite frame agitator according to claim 6, characterized in that: A sleeve ring (701) is fixedly connected to the connection portion between the push plate (7) and the inner transverse paddle (3), and the sleeve ring (701) is slidably sleeved on the inner transverse paddle (3).

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