Crystallization and mother liquor separation apparatus

Abstract

The utility model discloses a crystallization and mother liquor separation device, including filter container, first filter plate, second filter plate and third filter plate of setting in filter container, first filter plate is obliquely arranged in the upper position in filter container. Second filter plate is obliquely arranged below first filter plate. Third filter plate is obliquely arranged below second filter plate. The filter hole of first filter plate is greater than the filter hole of second filter plate, and the filter hole of second filter plate is greater than the filter hole of third filter plate. The lateral wall of filter container is equipped with suction pipe, and suction pipe is located above the low end of third filter plate, and the top of filter container is equipped with liquid inlet, and the bottom of filter container is equipped with liquid outlet. The crystallization in the mother liquor of this design is filtered through three layers, and is gathered in one place, not only is filtered fully, but also is convenient to extract crystallization.

Description

Technical Field

[0001] This utility model relates to the field of industrial equipment, specifically to a filtration device for liquid materials. Background Technology

[0002] In the preparation of chemical materials, co-crystallization of liquid materials is often required, such as in the preparation of glucosamine sulfate or 1,2-benzisothiazol-3-one (BIT). After crystallization, the crystalline material needs to be separated from the mother liquor. A common separation method is to install a horizontally positioned filter screen below the discharge end of the crystallization equipment to filter the crystalline material from the mother liquor. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a crystallization and mother liquor separation device with a double-layer filter screen.

[0004] To solve the above technical problems, the present invention provides the following technical solution: a crystallization and mother liquor separation device, including a filter container, a first filter plate, a second filter plate and a third filter plate disposed in the filter container, wherein the first filter plate is inclinedly disposed in the upper part of the filter container, and there is a gap between the lower end of the first filter plate and the inner wall of the filter container.

[0005] The second filter plate is inclined and positioned below the first filter plate. The high end of the second filter plate is located below the low end of the first filter plate, and there is a gap between the low end of the second filter plate and the inner wall of the filter container.

[0006] The third filter plate is inclined and positioned below the second filter plate. The high end of the third filter plate is located below the low end of the second filter plate, and the bottom end of the third filter plate abuts against the inner wall of the filter container.

[0007] The filter holes of the first filter plate are larger than those of the second filter plate, and the filter holes of the second filter plate are larger than those of the third filter plate.

[0008] The filter container has a suction pipe on its side wall, which is located above the lower end of the third filter plate. The top of the filter container has a liquid inlet, and the bottom of the filter container has a drain outlet.

[0009] According to the above technical solution, the liquid material to be filtered enters the filtration container through the liquid inlet. After passing through the first filter plate, the liquid and crystals undergo preliminary filtration. Large crystal particles remaining on the first filter plate slide down or roll down to the second filter plate. Small crystal particles and liquid passing through the first filter plate fall vertically onto the second filter plate. The small crystal particles remaining on the second filter plate slide down or roll down together with the large crystal particles from the first filter plate to the third filter plate. The tiny crystal particles and liquid passing through the second filter plate fall vertically onto the third filter plate. The tiny crystal particles remain on the third filter plate and slide down or roll down together with the large and small crystal particles from the second filter plate to the lower end of the third filter plate. The suction pipe sucks away the large, small, and tiny crystal particles, and the liquid is discharged through the drain port. In this way, the separation of crystallization and mother liquor from the liquid material to be filtered is completed.

[0010] The liquid inlet is located in a recessed area at the top of the filter container, above the high end of the first filter plate.

[0011] The top plate of the filter container is welded to the side wall of the filter container.

[0012] The first filter plate is inserted into the first slot, which is fixed to the inner side wall of the filter container. The side wall of the filter container is provided with a first insertion port, and the high end of the first filter plate is provided with a first baffle. The first filter plate is inserted into the filter container through the first insertion port and into the first slot, and the first baffle stops at the side wall of the filter container.

[0013] The second filter plate is inserted into the second slot, which is fixed to the inner side wall of the filter container. The side wall of the filter container is provided with a second insertion port. The high end of the second filter plate is provided with a second baffle. The second filter plate is inserted into the filter container through the second insertion port and into the second slot. The second baffle stops at the side wall of the filter container.

[0014] The third filter plate is inserted into the third slot, which is fixed to the inner side wall of the filter container. The side wall of the filter container is provided with a third insertion port. The high end of the third filter plate is provided with a third baffle. The third filter plate is inserted into the filter container through the third insertion port and into the third slot. The third baffle stops at the side wall of the filter container.

[0015] A first rubber pad is installed between the third baffle and the outer wall of the filter container, and a second rubber pad is installed in the third slot. A vibration motor is mounted on the third baffle. Bolts secure the base of the vibration motor and the third baffle to the side wall of the filter container. The first and second rubber pads provide the conditions for the vibration of the third filter plate.

[0016] In this invention, the crystals in the mother liquor are filtered through three layers and collected in one place, ensuring thorough filtration and convenient crystal extraction. The vibrating motor can vibrate the third filter plate and the entire filter container, facilitating the downward sliding or rolling of crystals on the first, second, and third filter plates, and also ensuring thorough separation of crystals from the mother liquor on any of the filter plates. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the crystallization and mother liquor separation device.

[0019] Figure 2 for Figure 1 Top view;

[0020] Figure 3 This is a cross-sectional view of the crystallization and mother liquor separation device;

[0021] Figure 4 for Figure 3 AA section view;

[0022] Figure 5 This is a schematic diagram of the suction tube 50;

[0023] Figure 6 for Figure 5 The right view.

[0024] Explanation of symbols in the diagram:

[0025] 10. First filter plate; 11. First slot; 12. First baffle;

[0026] 20. Second filter plate; 21. Second slot; 22. Second baffle;

[0027] 30. Third filter plate; 31. Third slot; 32. Third baffle; 33. First rubber pad; 34. Second rubber pad; 35. Vibration motor;

[0028] 40. Filter container; 41. Liquid inlet; 42. Drain outlet; 43. Top plate;

[0029] 50. Suction pipe; 51. Main pipe; 52. Branch pipe. Detailed Implementation

[0030] like Figure 3A crystallization and mother liquor separation device includes a filter container 40, a first filter plate 10, a second filter plate 20, and a third filter plate 30 disposed within the filter container. The first filter plate is inclinedly disposed at the upper part of the filter container, with a gap between its lower end and the inner wall of the filter container. The second filter plate 20 is inclinedly disposed below the first filter plate, with its upper end below the lower end of the first filter plate, and a gap between its lower end and the inner wall of the filter container. The third filter plate 30 is inclinedly disposed below the second filter plate, with its upper end below the lower end of the second filter plate, and its lower end abutting against the inner wall of the filter container. The filter holes of the first filter plate are larger than those of the second filter plate, and the filter holes of the second filter plate are larger than those of the third filter plate. A suction pipe 50 is provided on the side wall of the filter container 40, located above the lower end of the third filter plate. A liquid inlet 41 is provided at the top of the filter container, and a drain outlet 42 is provided at the bottom of the filter container.

[0031] Liquid inlet 41 is located in a recessed area at the top of filter container 40, and is situated above the high end of the first filter plate 10.

[0032] The top plate 43 of the filter container 40 is welded to the side wall of the filter container.

[0033] The first filter plate 10 is inserted into the first slot 11, which is fixed to the inner side wall of the filter container 40. The side wall of the filter container is provided with a first insertion port, and the high end of the first filter plate is provided with a first baffle 12. The first filter plate is inserted into the filter container through the first insertion port and into the first slot, and the first baffle stops at the side wall of the filter container.

[0034] The second filter plate 20 is inserted into the second slot 21, which is fixed to the inner side wall of the filter container 40. The side wall of the filter container is provided with a second insertion port. The high end of the second filter plate is provided with a second baffle 22. The second filter plate is inserted into the filter container through the second insertion port and into the second slot. The second baffle stops at the side wall of the filter container.

[0035] The third filter plate 30 is inserted into the third slot 31, which is fixed on the inner side wall of the filter container 40. The side wall of the filter container is provided with a third insertion port, and the high end of the third filter plate is provided with a third baffle 32. The third filter plate is inserted into the filter container through the third insertion port and into the third slot, and the third baffle stops at the side wall of the filter container.

[0036] A first rubber pad 33 is provided between the third baffle 32 and the outer wall of the filter container 40, a second rubber pad 34 is provided in the third slot 31, and a vibration motor 35 is installed on the third baffle.

[0037] The liquid material to be filtered enters the filter container 40 through the liquid inlet 41. After passing through the first filter plate 10, the liquid and crystals undergo preliminary filtration. Large crystal particles remaining on the first filter plate 10 slide down or roll down to the second filter plate 20. Small crystal particles and liquid passing through the first filter plate fall vertically onto the second filter plate 20. The small crystal particles remaining on the second filter plate 20 slide down or roll down together with the large crystal particles from the first filter plate 10 to the third filter plate 30. The tiny crystal particles and liquid passing through the second filter plate 20 fall vertically onto the third filter plate 30. The tiny crystal particles remain on the third filter plate 30 and slide down or roll down together with the large and small crystal particles from the second filter plate 20 to the lower end of the third filter plate 30. The suction pipe 50 sucks away the large, small, and tiny crystal particles, and the liquid is discharged through the drain port 42. In this way, the separation of crystals and mother liquor from the liquid material to be filtered is completed. The suction pipe 50 includes a main pipe 51 and several branch pipes 52 connected to the main pipe, such as... Figure 5 , Figure 6 As shown.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A crystallization and mother liquor separation device, comprising a filter container (40), a first filter plate (10), a second filter plate (20), and a third filter plate (30) disposed in the filter container, characterized in that: The first filter plate is inclinedly disposed at the upper part of the filter container, and there is a gap between the lower end of the first filter plate and the inner wall of the filter container. The second filter plate (20) is inclined and disposed below the first filter plate. The high end of the second filter plate is located below the low end of the first filter plate, and there is a gap between the low end of the second filter plate and the inner wall of the filter container. The third filter plate (30) is inclined and set below the second filter plate. The high end of the third filter plate is located below the low end of the second filter plate, and the bottom end of the third filter plate abuts against the inner wall of the filter container. The filter holes of the first filter plate are larger than those of the second filter plate, and the filter holes of the second filter plate are larger than those of the third filter plate. The filter container (40) is provided with a suction pipe (50) on its side wall. The suction pipe is located above the lower end of the third filter plate. The top of the filter container is provided with a liquid inlet (41), and the bottom of the filter container is provided with a drain outlet (42).

2. The crystallization and mother liquor separation apparatus as described in claim 1, characterized in that: The liquid inlet (41) is located in a recessed area at the top of the filter container (40), and the liquid inlet (41) is located above the high end of the first filter plate (10).

3. The crystallization and mother liquor separation apparatus as described in claim 2, characterized in that: The top plate (43) of the filter container (40) is welded to the side wall of the filter container.

4. The crystallization and mother liquor separation apparatus as described in claim 1, characterized in that: The first filter plate (10) is inserted into the first slot (11). The first slot is fixed on the inner side wall of the filter container (40). The side wall of the filter container is provided with a first insertion port. The high end of the first filter plate is provided with a first baffle (12). The first filter plate is inserted into the filter container through the first insertion port and into the first slot. The first baffle stops at the side wall of the filter container.

5. The crystallization and mother liquor separation apparatus as described in claim 1, characterized in that: The second filter plate (20) is inserted into the second slot (21). The second slot is fixed on the inner side wall of the filter container (40). The side wall of the filter container is provided with a second insertion port. The high end of the second filter plate is provided with a second baffle (22). The second filter plate is inserted into the filter container through the second insertion port and into the second slot. The second baffle stops at the side wall of the filter container.

6. The crystallization and mother liquor separation apparatus as described in claim 1, characterized in that: The third filter plate (30) is inserted into the third slot (31), the third slot is fixed on the inner side wall of the filter container (40), the side wall of the filter container is provided with a third insertion port, the high end of the third filter plate is provided with a third baffle (32), the third filter plate is inserted into the filter container through the third insertion port and inserted into the third slot, and the third baffle stops at the side wall of the filter container.

7. The crystallization and mother liquor separation apparatus as described in claim 6, characterized in that: A first rubber pad (33) is provided between the third baffle (32) and the outer wall of the filter container (40), a second rubber pad (34) is provided in the third slot (31), and a vibration motor (35) is installed on the third baffle.

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