Filtering device for production of tetrabromobisphenol A

Abstract

The utility model discloses a filtering device for production of tetrabromobisphenol A. The filtering device comprises a shell, a filter screen is fixed in the shell, a rotating shaft is rotatably installed on the side wall of the shell through a sealing bearing, one end of the rotating shaft is fixedly connected with the output end of a servo motor, and the other end of the rotating shaft is fixedly connected with a motor. The outer wall of the servo motor is fixed to the outer wall of the shell through a mounting plate, a scraper is arranged on the outer side of the rotating shaft and located in the shell, the filter screen is formed by connecting and fixing a plurality of V shapes in series, the filter area of the filter screen on a tetrabromobisphenol A raw material solution is increased, the filter screen cleaning frequency is reduced, and the filter screen cleaning efficiency is improved. And by starting the servo motor, the scraping plate and the sealing plate can move towards the right side at the same time, the impurity discharging opening can be opened, the scraping plate can push impurities in the filter screen out of the impurity discharging opening, and therefore cleaning of the impurities in the filter screen is facilitated, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tetrabromobisphenol A production, in particular to a filtering device for tetrabromobisphenol A production. Background Art

[0002] Tetrabromobisphenol A is an organic compound with the chemical formula C15H12Br4O2. It is a white crystalline powder, soluble in methanol and ether, insoluble in water. It is mainly used as a reactive flame retardant. After the raw materials for the production of tetrabromobisphenol A are mixed together to form a solution, a filtering device is required to filter out impurities in the mixed liquid to ensure the purity of the prepared tetrabromobisphenol A.

[0003] However, the existing filtration device for producing tetrabromobisphenol A has a small filtering area of ​​the internal filter screen, which is easy to clog, resulting in an increase in the number of cleaning times, which is troublesome. Moreover, when the filter screen is clogged, it needs to be removed from the inside of the filtration device for cleaning, which makes the operation very troublesome and affects work efficiency.

[0004] In view of the above problems, it is urgent to carry out innovative design based on the original filtration device for tetrabromobisphenol A production. Utility Model Content

[0005] The utility model aims to provide a filtering device for producing tetrabromobisphenol A to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filtering device for producing tetrabromobisphenol A, comprising a housing, a filter screen is fixed inside the housing, a rotating shaft is rotatably mounted on the side wall of the housing through a sealed bearing, one end of the rotating shaft is fixedly connected to the output end of a servo motor, the outer wall of the servo motor is fixed to the outer wall of the housing through a mounting plate, a scraper is arranged on the outer side of the rotating shaft and located inside the housing, the end of the scraper penetrates a limit rod, and the end of the limit rod is fixedly connected to the inner wall of the housing;

[0007] A decontamination port is provided on one side of the shell, a sealing plate is clamped inside the decontamination port, a groove is provided on one side of the sealing plate and located inside the decontamination port, a threaded groove is provided inside the sealing plate and located inside the groove, the other end of the rotating shaft passes through the groove and is located inside the threaded groove, the other end of the limiting rod is located inside the limiting groove, and the limiting groove is provided inside the sealing plate.

[0008] Preferably, a second thread is arranged on the outer side of the rotating shaft and inside the thread groove, and a first thread is arranged on the outer side of the rotating shaft and inside the shell and the groove, and the pitch of the first thread is greater than the pitch of the second thread.

[0009] Preferably, the filter screen is composed of a plurality of "V"-shaped filters fixed in series.

[0010] Preferably, the bottom of the scraper is in contact with the inner side of the filter screen, the scraper and the first thread are threadedly connected, the thread groove and the second thread are threadedly connected, the scraper and the limit rod are slidably connected, and the limit rod and the limit groove are slidably connected.

[0011] Preferably, the top of the scraper is designed to be inclined, and the top of the scraper is designed to be higher on the left and lower on the right.

[0012] Preferably, a sealing rubber is fixed to the outer side of the left end of the sealing plate, and the outer side of the sealing rubber is in contact with the inner side of the impurity discharge port.

[0013] Preferably, a feed pipe is provided on the top of the shell, and a top cover is threadedly mounted on the top of the feed pipe.

[0014] Preferably, a liquid outlet pipe is provided at the bottom of one side of the shell, and a manual valve is installed on the liquid outlet pipe.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the filter device for producing tetrabromobisphenol A, the filter screen is composed of a plurality of "V"-shaped filters fixed in series, which increases the filter screen's filtering area for tetrabromobisphenol A raw material solution and reduces the number of times the filter screen is cleaned;

[0016] By starting the servo motor, the scraper and the sealing plate can be moved to the right at the same time, so that the impurity discharge port can be opened, and the scraper can push the impurities inside the filter screen out of the impurity discharge port, thereby facilitating the cleaning of impurities inside the filter screen and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the structure after the middle scraper and sealing plate move;

[0019] Figure 3 This is a schematic diagram of the installation structure of the scraper of the utility model in side view;

[0020] Figure 4 This is a schematic diagram of the installation structure of the scraper of the utility model from a top view;

[0021] Figure 5 It is a side view structural schematic diagram of the impurity discharge port of the utility model.

[0022] In the figure: 1. outer shell; 2. filter screen; 3. impurity discharge port; 4. sealing plate; 5. groove; 6. thread groove; 7. rotating shaft; 8. servo motor; 9. scraper; 10. limit rod; 11. limit groove; 12. feed pipe; 13. top cover; 14. liquid outlet pipe; 15. manual valve; 16. first thread; 17. second thread. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-5 The utility model provides a technical solution: a filtering device for producing tetrabromobisphenol A, comprising a shell 1, a filter screen 2 is fixed inside the shell 1, a rotating shaft 7 is rotatably mounted on the side wall of the shell 1 through a sealed bearing, one end of the rotating shaft 7 is fixedly connected to the output end of a servo motor 8, the outer wall of the servo motor 8 is fixed to the outer wall of the shell 1 through a mounting plate, a scraper 9 is arranged on the outer side of the rotating shaft 7 and located inside the shell 1, the end of the scraper 9 penetrates a limit rod 10, the end of the limit rod 10 is fixedly connected to the inner wall of the shell 1, a feed pipe 12 is arranged on the top of the shell 1, a top cover 13 is threadedly mounted on the top of the feed pipe 12, a liquid outlet pipe 14 is arranged on the bottom of one side of the shell 1, and a manual valve 15 is installed on the liquid outlet pipe 14;

[0025] A degassing port 3 is provided on one side of the shell 1, and a sealing plate 4 is clamped inside the degassing port 3. A groove 5 is provided on one side of the sealing plate 4 and located inside the degassing port 3. A threaded groove 6 is provided inside the sealing plate 4 and located inside the groove 5. The other end of the rotating shaft 7 passes through the groove 5 and is located inside the threaded groove 6. The other end of the limiting rod 10 is located inside the limiting groove 11, and the limiting groove 11 is provided inside the sealing plate 4.

[0026] The outer side of the rotating shaft 7 is located inside the thread groove 6 and is provided with a second thread 17. The outer side of the rotating shaft 7 is located inside the housing 1 and the groove 5 and is provided with a first thread 16. The pitch on the first thread 16 is greater than the pitch on the second thread 17. The bottom of the scraper 9 contacts the inner side of the filter screen 2. The top of the scraper 9 is inclined, and the top of the scraper 9 is designed to be higher on the left and lower on the right. The scraper 9 and the first thread 16 are threadedly connected, the thread groove 6 and the second thread 17 are threadedly connected, the scraper 9 and the limit rod 10 are slidably connected, and the limit rod 10 and the limit groove 11 are slidably connected, ensuring that when the rotating shaft 7 rotates, the scraper 9 moves to the right faster and the sealing plate 4 moves to the right slower, preventing the sealing plate 4 from separating from the rotating shaft 7, and at the same time enabling the impurity discharge port 3 to be opened, and enabling the scraper 9 to push the impurities inside the filter screen 2 out of the impurity discharge port 3, thereby facilitating the cleaning of impurities inside the filter screen 2 and improving work efficiency.

[0027] The filter screen 2 is composed of a plurality of "V"-shaped filters fixed in series, which increases the filtering area of ​​the filter screen 2 for the tetrabromobisphenol A raw material solution and reduces the number of times the filter screen 2 is cleaned.

[0028] A sealing rubber is fixed to the outer side of the left end of the sealing plate 4, and the outer side of the sealing rubber fits with the inner side of the impurity discharge port 3, thereby improving the sealing performance of the connection between the impurity discharge port 3 and the sealing plate 4 and preventing the solution from leaking from the connection between the impurity discharge port 3 and the sealing plate 4.

[0029] Working principle: When using the filtration device for tetrabromobisphenol A production, firstly, the tetrabromobisphenol A raw material solution is poured into the interior of the housing 1 through the feed pipe 12. After the tetrabromobisphenol A raw material solution is filtered by the filter screen 2, it falls to the bottom of the housing 1, and the impurities remain in the interior of the filter screen 2.

[0030] When there are too many impurities inside the filter screen 2 and it needs to be cleaned, the servo motor 8 is started at this time, and then the servo motor 8 drives the rotating shaft 7 to rotate. Since the pitch of the first thread 16 is greater than the pitch of the second thread 17, and the scraper 9 and the first thread 16 are threadedly connected, and the thread groove 6 and the second thread 17 are threadedly connected, and the scraper 9 and the limit rod 10 are slidably connected, and the limit rod 10 and the limit groove 11 are slidably connected, the scraper 9 moves to the right faster, and the sealing plate 4 moves to the right slower, until Figure 1 The position of the sealing plate 4 and the scraper 9 is moved to Figure 2 During this process, the sealing plate 4 is separated from the impurity discharge port 3, so that the impurity discharge port 3 is opened, and the scraper 9 pushes the impurities inside the filter screen 2 out of the impurity discharge port 3, thereby facilitating the cleaning of the impurities inside the filter screen 2.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A filtering device for producing tetrabromobisphenol A, comprising a housing (1), characterized in that: A filter screen (2) is fixed inside the housing (1); a rotating shaft (7) is rotatably mounted on the side wall of the housing (1) via a sealed bearing; one end of the rotating shaft (7) is fixedly connected to the output end of a servo motor (8); an outer wall of the servo motor (8) is fixed to the outer wall of the housing (1) via a mounting plate; a scraper (9) is arranged outside the rotating shaft (7) and inside the housing (1); an end of the scraper (9) passes through a limiting rod (10); and an end of the limiting rod (10) is fixedly connected to the inner wall of the housing (1); A dirt discharge port (3) is provided on one side of the housing (1), a sealing plate (4) is clamped inside the dirt discharge port (3), a groove (5) is provided on one side of the sealing plate (4) and is located inside the dirt discharge port (3), a thread groove (6) is provided inside the sealing plate (4) and is located inside the groove (5), the other end of the rotating shaft (7) passes through the groove (5) and is located inside the thread groove (6), the other end of the limiting rod (10) is located inside the limiting groove (11), and the limiting groove (11) is provided inside the sealing plate (4).

2. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: The outer side of the rotating shaft (7) is located inside the thread groove (6) and is provided with a second thread (17); the outer side of the rotating shaft (7) is located inside the housing (1) and the groove (5) and is provided with a first thread (16); the pitch of the first thread (16) is greater than the pitch of the second thread (17).

3. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: The filter screen (2) is composed of a plurality of "V"-shaped screens fixed in series.

4. A filtration device for producing tetrabromobisphenol A according to claim 2, characterized in that: The bottom of the scraper (9) contacts the inner side of the filter screen (2); the scraper (9) and the first thread (16) are threadedly connected; the thread groove (6) and the second thread (17) are threadedly connected; the scraper (9) and the limit rod (10) are slidably connected; and the limit rod (10) and the limit groove (11) are slidably connected.

5. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: The top of the scraper (9) is designed to be inclined, and the top of the scraper (9) is designed to be higher on the left and lower on the right.

6. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: A sealing rubber is fixed to the outer side of the left end of the sealing plate (4), and the outer side of the sealing rubber is in contact with the inner side of the impurity discharge port (3).

7. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: A feed pipe (12) is provided on the top of the housing (1), and a top cover (13) is threadedly mounted on the top of the feed pipe (12).

8. A filtration device for producing tetrabromobisphenol A according to claim 1, characterized in that: A liquid outlet pipe (14) is provided at the bottom of one side of the housing (1), and a manual valve (15) is installed on the liquid outlet pipe (14).

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