Crystallization scraper mechanism

Abstract

The utility model discloses a crystallization scraper mechanism which comprises a rotating arm, a spiral stirring blade is arranged on the outer side of the rotating arm, the spiral stirring blade is fixedly connected with the rotating arm through a plurality of supporting rods, a support is fixed between every two adjacent supporting rods in sequence in the length direction of the rotating arm, and a plurality of blades are arranged on the supporting rods. A sliding rod extending in the radial direction of the rotating arm is arranged on the support in a penetrating mode, the sliding rod is in sliding fit with the support, a movable plate is fixed to the outer end of the sliding rod, a scraper is fixed to the movable plate, a blade of the scraper protrudes outwards relative to the edge of the rotating arm, a spring is arranged on the sliding rod in a sleeving mode, and the sliding rod is sleeved with the spring. And the spring is clamped between the movable plate and the bracket. According to the utility model, the stress distribution is balanced, and crystals can be scraped efficiently.

Description

Technical Field

[0001] This utility model relates to crystallization equipment, and more particularly to a crystallization scraper mechanism. Background Technology

[0002] Crystallization devices generally crystallize materials inside a crystallization cylinder by stirring. To prevent materials from crystallizing on the inner wall of the cylinder, a scraper needs to be installed on the stirring device. For existing scraper structures, please refer to the Chinese patent publication document with announcement number 221557585U and title "A Scraper for a Crystallizer". It describes that: "The stirring motor 104 drives the stirring shaft 105 to rotate, the stirring shaft 105 drives the stirring blade 202 to rotate, and stirs the material. At the same time, the stirring shaft 105 drives the connecting plate 106 to rotate, and the connecting plate 106 drives the arc-shaped scraper body 102 to rotate, and scrapes off the material attached to the inner wall of the crystallizer body 101".

[0003] In the above-mentioned scraper structure, the scraper body is arc-shaped and is connected to the stirring shaft through a connecting plate. Because the scraper body is a single arc-shaped plate, the eccentric force during the rotation of the stirring shaft is large, which is not conducive to drive control and can easily have an adverse effect on the rotation mechanism. Furthermore, since the arc-shaped scraper body extends in an arc shape along the inner wall of the crystallizer body, there must be a gap between the arc-shaped scraper body and the inner wall of the crystallizer body, resulting in poor scraping effect of crystals and failing to meet the process requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a crystal scraper mechanism that has a balanced stress distribution and can efficiently remove crystals, in order to address the shortcomings of the existing technology.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution.

[0006] A crystallization scraper mechanism includes a rotating arm with spiral stirring blades on its outer side. The spiral stirring blades are fixedly connected to the rotating arm via multiple support rods. A bracket is fixed between two adjacent support rods along the length of the rotating arm. A slide rod extending radially along the rotating arm is threaded through the bracket, and the slide rod is slidably engaged with the bracket. A movable plate is fixed to the outer end of the slide rod, and a scraper is fixed to the movable plate. The blade of the scraper protrudes outward relative to the edge of the rotating arm. A spring is sleeved on the slide rod and clamped between the movable plate and the bracket.

[0007] Preferably, the bracket is provided with two parallel sliding rods, and the movable plate is fixed to the ends of the two sliding rods.

[0008] Preferably, the end of the slide bar away from the movable plate is provided with a limiting end cap.

[0009] Preferably, it includes an L-shaped fixing plate and a vertical fixing plate, the straight portion of the L-shaped fixing plate being fixedly connected to the movable plate, and the scraper being clamped between the vertical fixing plate and the vertical portion of the L-shaped fixing plate.

[0010] Preferably, the vertical fixing plate, the scraper, and the L-shaped fixing plate are fixedly connected by screws.

[0011] Preferably, the movable plate is provided with a fixing groove, and the straight part of the L-shaped fixing piece is provided in the fixing groove and the two are fixedly connected.

[0012] Preferably, the angle between the scraper and the movable plate is an acute angle.

[0013] Preferably, the blade of the scraper is an outwardly convex arc-shaped blade.

[0014] In the crystallization scraper mechanism disclosed in this utility model, the spiral stirring blades are fixed to the outside of the rotating arm by multiple support rods. Within the gaps between the spiral stirring blades, the bracket is fixed between two adjacent support rods. The sliding rod passes through the bracket and the two slide in cooperation. By setting the spring and the movable plate, the movable plate and the sliding rod can move synchronously relative to the bracket, with their movement trajectory consistent with the radial direction of the rotating arm. The scraper mounted on the movable plate protrudes slightly outward relative to the edge of the rotating arm, so that the blade of the scraper contacts the inner wall of the crystallization equipment as much as possible. When the rotating arm drives the spiral stirring blades to rotate, the spring force allows the outwardly extending scraper to fully scrape away the crystals on the inner wall of the equipment. Simultaneously, a bracket and a scraper assembly consisting of the scraper, the sliding rod, the movable plate, and the spring are fixed between each pair of adjacent support rods. This dispersed arrangement of multiple scraper assemblies not only ensures a balanced distribution of load force on the rotating arm during operation but also efficiently scrapes away crystals on the inner wall of the equipment, thus better meeting application requirements. Attached Figure Description

[0015] Fig. 1 This is a perspective view of the crystallization scraper mechanism of this utility model;

[0016] Fig. 2 This is a front view of the crystallization scraper mechanism of this utility model;

[0017] Fig. 3 This is a partial enlarged view of the crystallization scraper mechanism of this utility model. Detailed Implementation

[0018] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments.

[0019] This utility model discloses a crystallization scraper mechanism, combined with Figs. 1 to 3 As shown, it includes a rotating arm 1, with a spiral stirring blade 2 on the outer side of the rotating arm 1. The spiral stirring blade 2 is fixedly connected to the rotating arm 1 by multiple support rods 3. A bracket 4 is fixed between two adjacent support rods 3 along the length direction of the rotating arm 1. A sliding rod 6 extending radially along the rotating arm 1 is passed through the bracket 4, and the sliding rod 6 is slidably engaged with the bracket 4. A movable plate 7 is fixed to the outer end of the sliding rod 6, and a scraper 5 is fixed on the movable plate 7. The blade 52 of the scraper 5 protrudes outward relative to the edge of the rotating arm 1. A spring 8 is sleeved on the sliding rod 6, and the spring 8 is sandwiched between the movable plate 7 and the bracket 4.

[0020] In the above structure, the spiral stirring blade 2 is fixed to the outside of the rotating arm 1 by multiple support rods 3. Within the gaps between the spiral stirring blades 2, the bracket 4 is fixed between two adjacent support rods 3. The slide rod 6 passes through the bracket 4 and the two slide in slidable engagement. By setting the spring 8 and the movable plate 7, the movable plate 7 and the slide rod 6 can move synchronously relative to the bracket 4, with their movement trajectory consistent with the radial direction of the rotating arm 1. The scraper 5 mounted on the movable plate 7 protrudes slightly outward relative to the edge of the rotating arm 1, so that the blade of the scraper 5 is fully extended. When the rotating arm 1 drives the spiral stirring blade 2 to rotate, the outward-extending scraper 5 can fully scrape off the crystals on the inner wall of the equipment based on the elastic force applied by the spring 8. At the same time, a bracket 4 and a scraper assembly composed of the scraper 5, the slide rod 6, the movable plate 7 and the spring 8 are fixed between each pair of adjacent support rods 3. This distributed arrangement of multiple scraper assemblies not only makes the load force borne by the rotating arm 1 during operation evenly distributed, but also efficiently scrapes off the crystals on the inner wall of the equipment, thus better meeting the application requirements.

[0021] In a preferred embodiment, the bracket 4 is provided with two parallel sliding rods 6, and the movable plate 7 is fixed to the ends of the two sliding rods 6. Further, a limiting end cap 60 is provided at the end of each sliding rod 6 away from the movable plate 7.

[0022] In the above structure, by setting two slide rods 6 on the bracket 4 and ensuring that the two slide rods 6 are parallel to each other, the movable plate 7 can move straight along the radial direction of the mechanism, thus avoiding positional displacement between the movable plate 7 and the scraper 5.

[0023] To reliably secure the scraper 5, please refer to [link / reference]. Fig. 3This embodiment includes an L-shaped fixing piece 50 and a vertical fixing piece 51. The straight part of the L-shaped fixing piece 50 is fixedly connected to the movable plate 7, and the scraper 5 is clamped between the vertical fixing piece 51 and the vertical part of the L-shaped fixing piece 50.

[0024] In this embodiment, in addition to using the vertical fixing plate 51 and the L-shaped fixing plate 50 to clamp the scraper 5, screws are also used for assembly and fixation. Specifically, the vertical fixing plate 51, the scraper 5 and the L-shaped fixing plate 50 are fixedly connected by screws.

[0025] To ensure that the installation angles of the multiple scrapers 5 are consistent, in this embodiment, the movable plate 7 is provided with a fixing groove 70, and the straight portion of the L-shaped fixing piece 50 is disposed within the fixing groove 70 and the two are fixedly connected. The fixing groove 70 mainly serves to position the L-shaped fixing piece 50. Furthermore, the straight portion of the L-shaped fixing piece 50 can be fixed to the movable plate 7 by welding.

[0026] In order to guide the crystals after scraping and prevent them from accumulating on the side of the scraper 5, in this embodiment, the included angle between the scraper 5 and the movable plate 7 is an acute angle.

[0027] As a preferred embodiment, the blade 52 of the scraper 5 is an outwardly convex arc-shaped blade. Specifically, the slightly outward protrusion of the blade 52 not only effectively removes crystals but also helps reduce driving resistance.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. All modifications, equivalent substitutions or improvements made within the technical scope of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A crystallization scraper mechanism, characterized in that, The device includes a rotating arm with spiral stirring blades on its outer side. The spiral stirring blades are fixedly connected to the rotating arm via multiple support rods. A bracket is fixed between two adjacent support rods along the length of the rotating arm. A sliding rod extending radially along the rotating arm is threaded through the bracket, and the sliding rod is slidably engaged with the bracket. A movable plate is fixed to the outer end of the sliding rod, and a scraper is fixed to the movable plate. The blade of the scraper protrudes outward relative to the edge of the rotating arm. A spring is sleeved on the sliding rod and is clamped between the movable plate and the bracket.

2. The crystallization scraper mechanism as described in claim 1, characterized in that, The bracket is provided with two parallel sliding rods, and the movable plate is fixed to the ends of the two sliding rods.

3. The crystallization scraper mechanism as described in claim 2, characterized in that, The end of the slide bar away from the movable plate is provided with a limiting end cap.

4. The crystallization scraper mechanism as described in claim 1, characterized in that, It includes an L-shaped fixing plate and a vertical fixing plate. The straight part of the L-shaped fixing plate is fixedly connected to the movable plate, and the scraper is clamped between the vertical fixing plate and the vertical part of the L-shaped fixing plate.

5. The crystallization scraper mechanism as described in claim 4, characterized in that, The vertical fixing plate, the scraper, and the L-shaped fixing plate are fixedly connected by screws.

6. The crystallization scraper mechanism as described in claim 4, characterized in that, The movable plate is provided with a fixing groove, and the straight part of the L-shaped fixing piece is located in the fixing groove and the two are fixedly connected.

7. The crystallization scraper mechanism as described in claim 1, characterized in that, The angle between the scraper and the movable plate is an acute angle.

8. The crystallization scraper mechanism as described in claim 1, characterized in that, The blade of the scraper is an outwardly convex, arc-shaped blade.

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