Suspension crystallizer scraper fixing device

Abstract

The utility model relates to the technical field of suspension crystallizers, in particular to a suspension crystallizer scraper fixing device which comprises a supporting rod and scraper rest assemblies, the scraper rest assemblies are vertically arranged on the outer side of the supporting rod at intervals, each scraper rest assembly comprises an upper bolt set, a lower bolt set and a scraper, and an upper mounting hole and a lower mounting hole are vertically formed in each scraper at intervals. The upper bolt set comprises a first outer bolt, a first inner bolt and a first locking nut, and the first outer bolt is arranged in the upper mounting hole. The scraper is reasonable and compact in structure and convenient to use, and the first outer bolt and the second outer bolt are arranged, so that the scraper is convenient to detach and replace; by arranging a first inner bolt and a second inner bolt, the position of the scraper can be conveniently adjusted; by arranging the first locking nut, the first inner bolt is prevented from moving in the second threaded hole; by arranging the second locking nut, the second inner bolt is prevented from moving in the fourth threaded hole, and the device has the advantages of being stable, reliable and easy to disassemble and assemble.

Description

Technical Field

[0001] This utility model relates to the field of suspension crystallizer technology and is a scraper fixing device for suspension crystallizer. Background Technology

[0002] Currently, the suspension crystallizer used in the dichlorobenzene workshop is used for the purification and recovery of dichlorobenzene. The rotating part inside the equipment has 54 scrapers used to scrape the dichlorobenzene on the inner wall of the crystallizer. Each scraper has two fixing bolts. When the scraper is damaged and needs to be replaced, the top end bolts of the crystallizer must be removed, and a 300-ton crane must be used to lift the rotating assembly inside the crystallizer out before it can be replaced. The whole process is time-consuming, labor-intensive, and extremely costly. Summary of the Invention

[0003] This utility model provides a scraper fixing device for a suspension crystallizer, which overcomes the shortcomings of the prior art and can effectively solve the problem that the scraper inside the existing suspension crystallizer is not easy to disassemble and replace.

[0004] The technical solution of this utility model is achieved through the following measures: A suspension crystallizer scraper fixing device includes a support rod and a scraper assembly. Several scraper assemblies are arranged vertically and horizontally on the outer side of the support rod. The scraper assembly includes an upper bolt group, a lower bolt group, and a scraper. The scraper is provided with an upper mounting hole and a lower mounting hole at vertical intervals. The upper bolt group includes a first outer bolt, a first inner bolt, and a first locking nut. The first outer bolt is provided in the upper mounting hole. The outer end of the first inner bolt is provided with a first threaded hole. The inner end of the first outer bolt is fixedly installed in the first threaded hole. The outer side of the middle part of the first inner bolt is provided with a first locking nut. A second threaded hole is provided on the support rod corresponding to the position of the first inner bolt. The inner end of the first inner bolt is fixedly installed in the second threaded hole. The lower bolt group includes a second outer bolt, a second inner bolt, and a second locking nut. The second outer bolt is provided in the lower mounting hole. The outer end of the second inner bolt is provided with a third threaded hole. The inner end of the second outer bolt is fixedly installed in the third threaded hole. The outer side of the middle part of the second inner bolt is provided with a second locking nut. A fourth threaded hole is provided on the support rod corresponding to the position of the second inner bolt. The inner end of the second inner bolt is fixedly installed in the fourth threaded hole.

[0005] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0006] The aforementioned upper bolt assembly may further include a first spring and a first washer. A first washer is provided on the outer side of the first inner bolt corresponding to the position between the first locking nut and the support rod. A first spring is provided above the first outer bolt. The outer end of the first spring is installed together with the upper part of the scraper, and the inner end of the first spring is installed together with the upper part of the first washer. The lower bolt assembly may further include a second spring and a second washer. A second washer is provided on the outer side of the second inner bolt corresponding to the position between the second locking nut and the support rod. A second spring is provided below the second outer bolt. The outer end of the second spring is installed together with the lower part of the scraper, and the inner end of the second spring is installed together with the lower part of the second washer.

[0007] This utility model has a reasonable and compact structure and is easy to use. By setting the first outer bolt and the second outer bolt, it is easy to remove and replace the scraper; by setting the first inner bolt and the second inner bolt, it is easy to adjust the position of the scraper; by setting the first locking nut, it is possible to prevent the first inner bolt from moving in the second threaded hole; by setting the second locking nut, it is possible to prevent the second inner bolt from moving in the fourth threaded hole. It has the characteristics of stability, reliability and easy disassembly and assembly. Attached Figure Description

[0008] Appendix Figure 1 This is a schematic diagram of the main cross-sectional structure of Embodiments 1 and 2 of this utility model.

[0009] Appendix Figure 2 For the appendix Figure 1 A magnified structural diagram at point A.

[0010] Appendix Figure 3 The attached diagram shows a top view of the structure.

[0011] Appendix Figure 4 For the appendix Figure 3 A magnified structural diagram at point B.

[0012] The codes in the attached diagram are as follows: 1 is the crystallizer body, 2 is the rotating shaft, 3 is the fixing rod, 4 is the support rod, 5 is the scraper, 6 is the first outer bolt, 7 is the first inner bolt, 8 is the first locking nut, 9 is the first spring, 10 is the first washer, and 11 is the lower bolt group. Detailed Implementation

[0013] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0014] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0015] The present invention will be further described below with reference to the embodiments and accompanying drawings:

[0016] Example 1: As shown in the attached document Figure 1 , 2 As shown in Figures 3 and 4, the suspended crystallizer scraper fixing device includes a support rod 4 and a scraper assembly. Several scraper assemblies are spaced vertically on the outer side of the support rod 4. Each scraper assembly includes an upper bolt group, a lower bolt group 11, and a scraper 5. The scraper 5 has upper and lower mounting holes spaced vertically. The upper bolt group includes a first outer bolt 6, a first inner bolt 7, and a first locking nut 8. The first outer bolt 6 is installed in the upper mounting hole. The outer end of the first inner bolt 7 has a first threaded hole. The inner end of the first outer bolt 6 is fixedly installed in the first threaded hole. The outer side of the middle of the first inner bolt 7 has a first threaded hole. The locking nut 8 has a second threaded hole on the support rod 4 corresponding to the position of the first inner bolt 7. The inner end of the first inner bolt 7 is fixedly installed in the second threaded hole. The lower bolt group 11 includes a second outer bolt, a second inner bolt, and a second locking nut. The second outer bolt is provided in the lower mounting hole. The outer end of the second inner bolt has a third threaded hole. The inner end of the second outer bolt is fixedly installed in the third threaded hole. The second locking nut is provided on the outer side of the middle part of the second inner bolt. The support rod 4 corresponding to the position of the second inner bolt has a fourth threaded hole. The inner end of the second inner bolt is fixedly installed in the fourth threaded hole. During use, the crystallizer body 1 is equipped with a rotating shaft 2. Six float crystallizer scraper fixing devices are evenly distributed around the outside of the rotating shaft 2 along the circumference and located inside the crystallizer body 1. Several fixing rods 3 are arranged vertically and vertically on the inner side of the support rod 4. The inner end of the fixing rod 3 is fixedly installed with the rotating shaft 2, and the outer end of the fixing rod 3 is fixedly installed with the corresponding position on the inner side of the support rod 4. The first outer bolt 6 and the second outer bolt are provided to facilitate the removal and replacement of the scraper 5. The first inner bolt 7 and the second inner bolt are provided to facilitate the adjustment of the position of the scraper 5. The first locking nut 8 is provided to prevent the first inner bolt 7 from moving in the second threaded hole. The second locking nut is provided to prevent the second inner bolt from moving in the fourth threaded hole.

[0017] When it is necessary to install the tool holder assembly on the support rod 4, taking the above bolt group as an example: (1) The inner end of the first outer bolt 6 passes through the upper mounting hole of the scraper 5 and is fixedly installed in the first threaded hole; (2) The first locking nut 8 is installed on the outer side of the middle part of the first inner bolt 7; (3) The inner end of the first inner bolt 7 is fixedly installed in the second threaded hole; (4) Loosen or tighten the first inner bolt 7 so that the outer end of the scraper 5 contacts the inner wall of the crystallizer body 1; (5) Rotate the first locking nut 8 so that it moves inward to contact the support rod 4, thereby locking the first inner bolt 7 and completing the tool holder installation.

[0018] When the scraper 5 needs to be replaced, take the above bolt group as an example: (1) Rotate the first locking nut 8 to move it outward and contact the bolt head of the first inner bolt 7, and lock the first inner bolt 7; (2) Rotate the first inner bolt 7 inward to move the scraper 5 away from the inner wall of the crystallizer body 1; (3) Loosen the first outer bolt 6, remove the scraper 5 and replace it.

[0019] The above-mentioned suspension crystallizer scraper fixing device can be further optimized and / or improved according to actual needs:

[0020] Example 2: As shown in the attached document Figure 1 , 2 As shown in Figures 3 and 4, the upper bolt assembly also includes a first spring 9 and a first washer 10. The first washer 10 is provided on the outside of the first inner bolt 7 corresponding to the position between the first locking nut 8 and the support rod 4. The first spring 9 is provided above the first outer bolt 6. The outer end of the first spring 9 is installed together with the upper part of the scraper 5, and the inner end of the first spring 9 is installed together with the upper part of the first washer 10. The lower bolt assembly 11 also includes a second spring and a second washer. The second washer is provided on the outside of the second inner bolt corresponding to the position between the second locking nut and the support rod 4. The second spring is provided below the second outer bolt. The outer end of the second spring is installed together with the lower part of the scraper 5, and the inner end of the second spring is installed together with the lower part of the second washer.

[0021] The above technical features constitute the embodiments of this utility model, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A scraper fixing device for a suspension crystallizer, characterized in that... The device includes a support rod and a tool holder assembly. Several tool holder assemblies are spaced vertically on the outer side of the support rod. Each tool holder assembly includes an upper bolt group, a lower bolt group, and a scraper. The scraper has upper and lower mounting holes spaced vertically. The upper bolt group includes a first outer bolt, a first inner bolt, and a first locking nut. The first outer bolt is located in the upper mounting hole. The outer end of the first inner bolt has a first threaded hole, and the inner end of the first outer bolt is fixedly installed in the first threaded hole. A first locking nut is located on the outer side of the middle portion of the first inner bolt. A second threaded hole is located on the support rod corresponding to the position of the first inner bolt, and the inner end of the first inner bolt is fixedly installed in the second threaded hole. The lower bolt group includes a second outer bolt, a second inner bolt, and a second locking nut. The second outer bolt is located in the lower mounting hole. The outer end of the second inner bolt has a third threaded hole, and the inner end of the second outer bolt is fixedly installed in the third threaded hole. A second locking nut is located on the outer side of the middle portion of the second inner bolt. A fourth threaded hole is located on the support rod corresponding to the position of the second inner bolt, and the inner end of the second inner bolt is fixedly installed in the fourth threaded hole.

2. The suspension crystallizer scraper fixing device according to claim 1, characterized in that... The upper bolt assembly also includes a first spring and a first washer. A first washer is provided on the outside of the first inner bolt corresponding to the position between the first locking nut and the support rod. A first spring is provided above the first outer bolt. The outer end of the first spring is installed together with the upper part of the scraper, and the inner end of the first spring is installed together with the upper part of the first washer. The lower bolt assembly also includes a second spring and a second washer. A second washer is provided on the outside of the second inner bolt corresponding to the position between the second locking nut and the support rod. A second spring is provided below the second outer bolt. The outer end of the second spring is installed together with the lower part of the scraper, and the inner end of the second spring is installed together with the lower part of the second washer.

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