Precision solid-liquid separation settling tank for 1, 3-cyclohexanedione

Abstract

The utility model belongs to the technical field of 1, 3-cyclohexanedione production equipment, and particularly relates to a precipitation tank for precisely separating solid and liquid of 1, 3-cyclohexanedione, which comprises a tank body, a discharge pipe fixedly connected with the bottom end of the tank body, a valve fixedly mounted on the circumferential surface of the discharge pipe, a feed pipe fixedly connected with the left end of the circumferential surface of the tank body, and a discharge pipe fixedly connected with the feed pipe. The upper end of the tank body is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with a filter plate, a round hole is formed in the center of the upper end face of the filter plate, the upper end of the tank body is connected with a supporting plate through a lifting mechanism, the upper end of the supporting plate is fixedly provided with a suction pump, and the liquid inlet end of the suction pump is fixedly connected with a liquid inlet pipe. The liquid inlet pipe extends downwards into the tank body and is in sliding connection with the tank body, the liquid discharging end of the suction pump is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a liquid discharging pipe, and the liquid discharging pipe is fixedly connected with the tank body through a supporting seat. According to the utility model, the solid-liquid separation effect of 1, 3-cyclohexanedione is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of 1,3-cyclohexanedione production equipment, in particular to a precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione. Background Art

[0002] 1,3-cyclohexanedione is a chemical substance with the molecular formula C6H8O2, which is used in organic synthesis, HPLC labeling, and material intermediates. After the production of 1,3-cyclohexanedione, it contains not only 1,3-cyclohexanedione liquid but also metal catalyst precipitates. In order to ensure that the 1,3-cyclohexanedione solution is purer, a precipitation tank is usually required to separate the precipitates inside the 1,3-cyclohexanedione solution.

[0003] After 1,3-cyclohexanedione is precipitated using a precipitation tank, there is no obvious boundary between the precipitate and the liquid. When the precipitate is discharged outward through the bottom of the precipitation tank, some liquid will still be discharged along with it. In order to avoid waste, secondary filtration is required, which increases the process and makes the operation more complicated. Summary of the invention

[0004] The utility model aims to provide a precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione, thereby improving the solid-liquid separation effect of 1,3-cyclohexanedione.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione, comprising a tank body, a discharge pipe is fixedly connected to the bottom end of the tank body, a valve is fixedly installed on the circumferential surface of the discharge pipe, a feed pipe is fixedly connected to the left end of the circumferential surface of the tank body, and the feed pipe and the tank body are communicated with each other, an electric telescopic rod is fixedly connected to the upper end of the tank body, a filter plate is fixedly connected to the output end of the electric telescopic rod, the filter plate is located in the tank body and is slidably connected to the tank body, and a circular valve is opened at the center of the upper end surface of the filter plate. The upper end of the tank body is connected to a support plate through a lifting mechanism, a suction pump is fixedly installed on the upper end of the support plate, the liquid inlet end of the suction pump is fixedly connected to a liquid inlet pipe, the liquid inlet pipe extends downward into the tank body and is slidably connected to the tank body, the liquid inlet pipe is located at the upper end of the filter plate, and the extension line of the central axis of the liquid inlet pipe coincides with the central axis of the filter plate, the diameter of the liquid inlet pipe is smaller than the diameter of the circular hole, the discharge end of the suction pump is fixedly connected to a connecting pipe, the lower end of the connecting pipe is fixedly connected to a discharge pipe, and the discharge pipe is fixedly connected to the tank body through a support seat.

[0006] Optionally, an observation window is provided on the left side of the circumferential surface of the tank body.

[0007] Optionally, a guide telescopic rod is fixedly connected to the upper end of the tank body, and an output end of the guide telescopic rod is fixedly connected to the filter plate.

[0008] Optionally, the connecting pipe includes a hard pipe and a retractable hose, the hard pipe is fixedly connected to the discharge end of the suction pump, the retractable hose is fixedly connected to the bottom end of the hard pipe, and the retractable hose is fixedly installed on the top end of the discharge pipe.

[0009] Optionally, two rubber plugs distributed up and down are fixedly connected inside the circular hole, and the upper end surfaces of the two rubber plugs are both provided with a cross cutout.

[0010] Optionally, the lifting mechanism includes a motor, a bearing seat, a threaded rod, a guide rod and a movable frame. The rear end of the circumferential surface of the tank body is fixedly connected with two groups of bearing seats distributed on the left and right. Each group of bearing seats is provided with two bearing seats and is distributed up and down. A group of bearing seats located at the right end is rotatably connected to the inside of a threaded rod, and a group of bearing seats located at the left end is fixedly connected to the inside of a guide rod. The circumferential surface of the threaded rod is threadedly connected to the movable frame, and the movable frame is fixedly installed at the bottom end of the support plate. The guide rod passes through the movable frame, and the movable frame is slidably connected to the guide rod.

[0011] Optionally, a through hole is formed on the upper end surface of the support plate, and a diameter of the through hole is larger than a diameter of the electric telescopic rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, under the mutual cooperation of the lifting mechanism, the suction pump, the connecting pipe, the liquid inlet pipe and the liquid discharge pipe, when the 1,3-cyclohexanedione mixed solution is precipitated in the tank body, the precipitate in the 1,3-cyclohexanedione will be precipitated at the bottom end of the tank body, and the liquid will remain at the upper end of the tank body. Then, after the lifting mechanism is controlled to adjust the liquid inlet pipe to extend into the tank body to a suitable depth, the suction pump is controlled to work, and the liquid precipitated in the tank body is finally discharged through the liquid discharge pipe along the liquid inlet pipe, the suction pump and the connecting pipe, until the remaining liquid in the tank body reaches the boundary position between the precipitate and the precipitate, the electric telescopic rod is controlled to work, and the filter plate is driven to move downward, so that the filter plate is pressed on the upper end of the precipitate. At this time, the cooperation of the liquid inlet pipe and the suction pump can more accurately The liquid on the filter plate is extracted. During the extraction process, the filter plate can more accurately separate the 1,3-cyclohexanedione liquid and the sediment. In addition, the filter plate moves downward under the action of the electric telescopic rod, and gradually presses on the upper end of the sediment to squeeze out the liquid between the sediments, so that the suction pump and the liquid inlet pipe can more fully extract the liquid inside the tank body. After the liquid extraction is completed, the valve is opened, and the sediment can be discharged outward through the discharge pipe, thereby completing the solid-liquid separation of the 1,3-cyclohexanedione solution. The separated sediment contains less liquid, making the separation of the 1,3-cyclohexanedione solution more accurate, and there is no need to perform secondary treatment on the 1,3-cyclohexanedione solution, making the entire solid-liquid separation process more convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0016] Figure 2 It is a rear-view stereoscopic structural schematic diagram of the utility model;

[0017] Figure 3 It is a top view of the three-dimensional structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model after the main view of the partial section;

[0019] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0020] In the figure: 1. tank body; 2. feed pipe; 3. discharge pipe; 4. connecting pipe; 5. guide telescopic rod; 6. observation window; 7. valve; 8. discharge pipe; 9. suction pump; 10. electric telescopic rod; 11. support plate; 12. feed pipe; 13. filter plate; 14. bearing seat; 15. threaded rod; 16. guide rod; 17. motor; 18. movable frame; 19. circular hole; 20. rubber plug block; 21. cross cut. DETAILED DESCRIPTION

[0021] A precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione provided in an embodiment of the utility model is now described. A precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione comprises a tank body 1, a discharge pipe 8 is fixedly connected to the bottom end of the tank body 1, a valve 7 is fixedly installed on the circumferential surface of the discharge pipe 8, a feed pipe 2 is fixedly connected to the left end of the circumferential surface of the tank body 1, and the feed pipe 2 is connected to the tank body 1, an electric telescopic rod 10 is fixedly connected to the upper end of the tank body 1, a filter plate 13 is fixedly connected to the output end of the electric telescopic rod 10, the filter plate 13 is located in the tank body 1, and is slidably connected to the tank body 1, a circular hole 19 is opened at the center of the upper end surface of the filter plate 13, and the upper end of the tank body 1 is lifted by a lift. The structure is connected to a support plate 11, a suction pump 9 is fixedly installed on the upper end of the support plate 11, a liquid inlet end of the suction pump 9 is fixedly connected to a liquid inlet pipe 12, the liquid inlet pipe 12 extends downward into the tank body 1, and is slidably connected to the tank body 1, the liquid inlet pipe 12 is located at the upper end of the filter plate 13, and the extension line of the central axis of the liquid inlet pipe 12 coincides with the central axis of the filter plate 13, the diameter of the liquid inlet pipe 12 is smaller than the diameter of the circular hole 19, the discharge end of the suction pump 9 is fixedly connected to a connecting pipe 4, the lower end of the connecting pipe 4 is fixedly connected to a discharge pipe 3, and the discharge pipe 3 is fixedly connected to the tank body 1 through a support seat.

[0022] The utility model provides a precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione. Compared with the prior art, the utility model has the advantages that, through the cooperation of the lifting mechanism, the suction pump 9, the connecting pipe 4, the liquid inlet pipe 12 and the liquid discharge pipe 3, when the 1,3-cyclohexanedione mixed solution is precipitated in the tank body 1, the precipitate in the 1,3-cyclohexanedione will sink to the bottom end of the tank body 1, and the liquid will remain at the upper end of the tank body 1. Then, the lifting mechanism is controlled to adjust the liquid inlet pipe 12 to extend to a suitable depth inside the tank body 1, and the suction pump 9 is controlled to operate, so that the liquid after the precipitation in the tank body 1 is discharged along the liquid inlet pipe 12, the suction pump 9 and the connecting pipe 4, and finally discharged from the liquid discharge pipe 3, until the remaining liquid in the tank body 1 reaches the boundary position between the precipitate and the liquid, and the electric telescopic rod 10 is controlled to operate to drive the filter plate 13 to move downward, and the filter plate 13 is pressed on the upper end of the precipitate. When the liquid inlet pipe 12 cooperates with the suction pump 9, the liquid on the filter plate 13 can be more accurately extracted. During the extraction process, due to the existence of the filter plate 13, the 1,3-cyclohexanedione liquid and the precipitate can be more accurately separated. In addition, as the filter plate 13 moves downward under the action of the electric telescopic rod 10, it is gradually pressed on the upper end of the precipitate, so that the liquid between the precipitates is pressed out, so that the suction pump 9 and the liquid inlet pipe 12 can more fully extract the liquid inside the tank body 1. After the liquid extraction is completed, the valve 7 is opened. At this time, the precipitate can be discharged outward through the discharge pipe 8, thereby completing the solid-liquid separation of the 1,3-cyclohexanedione solution. The amount of liquid contained in the separated precipitate is less, so that the separation of the 1,3-cyclohexanedione solution is more accurate, and there is no need to perform secondary treatment on the 1,3-cyclohexanedione solution, making the entire solid-liquid separation process more convenient to operate.

[0023] In another embodiment of the present invention, please refer to Figure 1 and Figure 2 , an observation window 6 is arranged on the left side of the circumferential surface of the tank body 1. During operation, the observation window 6 facilitates the staff to observe the situation inside the tank body 1 in time.

[0024] In another embodiment of the present invention, please refer to Figures 1 to 3 The upper end of the tank body 1 is fixedly connected with a guide telescopic rod 5, and the output end of the guide telescopic rod 5 is fixedly connected to the filter plate 13. During operation, under the action of the guide telescopic rod 5, the filter plate 13 can be moved more smoothly.

[0025] In another embodiment of the present invention, refer to Figures 1 to 4 The connecting pipe 4 includes a hard pipe and a retractable hose, the hard pipe is fixedly connected to the discharge end of the suction pump 9, the retractable hose is fixedly connected to the bottom end of the hard pipe, and the retractable hose is fixedly installed on the top of the discharge pipe 3. During operation, under the action of the retractable hose, the support plate 11 can drive the suction pump 9 and the liquid inlet pipe 12 to rise and fall smoothly.

[0026] In another embodiment of the present invention, please refer to Figure 4 and Figure 5 , two rubber plugs 20 are fixedly connected to the inside of the circular hole 19 and are distributed up and down, and the upper end surfaces of the two rubber plugs 20 are both provided with a cross cut 21. During operation, when the liquid inlet pipe 12 moves downward, it can smoothly pass through the rubber plug 20 and the circular hole 19 to penetrate the filter plate 13 under the action of the cross cut 21. When the filter plate 13 moves downward and presses on the upper end of the sediment and is located at the lower end of the liquid inlet pipe 12, the rubber plug 20 can prevent the sediment from passing through the circular hole 19 and floating to the upper end of the filter plate 13, thereby affecting the final separation effect.

[0027] In another embodiment of the present invention, please refer to Figure 2 and Figure 3The lifting mechanism includes a motor 17, a bearing seat 14, a threaded rod 15, a guide rod 16 and a mobile frame 18. The rear end of the circumferential surface of the tank body 1 is fixedly connected with two groups of bearing seats 14 distributed left and right. Each group of bearing seats 14 is provided with two and distributed up and down. The threaded rod 15 is rotatably connected inside the group of bearing seats 14 located at the right end, and the guide rod 16 is fixedly connected inside the group of bearing seats 14 located at the left end. The circumferential surface of the threaded rod 15 is threadedly connected with the mobile frame 18. The mobile frame 18 is fixedly installed at the bottom end of the support plate 11. The guide rod 16 penetrates the mobile frame 18, and the mobile frame 18 is slidably connected with the guide rod 16. When the motor 17 works, the output end of the motor 17 drives the threaded rod 15 to rotate. At this time, the mobile frame 18 can drive the support plate 11 to rise and fall more smoothly along the guide rod 16, thereby realizing the adjustment of the height of the support plate 11 and the liquid inlet pipe 12, so as to suck different amounts of liquid inside the tank body 1 through the liquid inlet pipe 12.

[0028] In another embodiment of the present invention, refer to Figure 3 The upper end surface of the support plate 11 is provided with a through hole, and the diameter of the through hole is larger than the diameter of the electric telescopic rod 10. By providing the through hole, the electric telescopic rod 10 can be prevented from affecting the lifting of the support plate 11 during operation.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione, comprising a tank body (1), characterized in that: The bottom end of the tank body (1) is fixedly connected to a discharge pipe (8), a valve (7) is fixedly installed on the circumferential surface of the discharge pipe (8), the left end of the circumferential surface of the tank body (1) is fixedly connected to a feed pipe (2), and the feed pipe (2) and the tank body (1) are in communication with each other, the upper end of the tank body (1) is fixedly connected to an electric telescopic rod (10), the output end of the electric telescopic rod (10) is fixedly connected to a filter plate (13), the filter plate (13) is located in the tank body (1) and is slidably connected to the tank body (1), a circular hole (19) is provided at the center of the upper end surface of the filter plate (13), the upper end of the tank body (1) is connected to a support plate (11) via a lifting mechanism, the support plate (11) is connected to the upper end of the tank body (1) via a lifting mechanism, and the support plate (11) is connected to the upper end of the tank body (1). A suction pump (9) is fixedly mounted on the upper end of the plate (11); a liquid inlet end of the suction pump (9) is fixedly connected to a liquid inlet pipe (12); the liquid inlet pipe (12) extends downward into the tank body (1) and is slidably connected to the tank body (1); the liquid inlet pipe (12) is located directly above the filter plate (13); an extension line of the central axis of the liquid inlet pipe (12) coincides with the central axis of the filter plate (13); the diameter of the liquid inlet pipe (12) is smaller than the diameter of the circular hole (19); a liquid discharge end of the suction pump (9) is fixedly connected to a connecting pipe (4); a lower end of the connecting pipe (4) is fixedly connected to a liquid discharge pipe (3); and the liquid discharge pipe (3) is fixedly connected to the tank body (1) via a support seat.

2. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: An observation window (6) is provided on the left side of the circumferential surface of the tank body (1).

3. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: The upper end of the tank body (1) is fixedly connected to a guide telescopic rod (5), and the output end of the guide telescopic rod (5) is fixedly connected to a filter plate (13).

4. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: The connecting pipe (4) comprises a hard pipe and a retractable hose, the hard pipe is fixedly connected to the discharge end of the suction pump (9), the retractable hose is fixedly connected to the bottom end of the hard pipe, and the retractable hose is fixedly installed on the top end of the discharge pipe (3).

5. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: Two rubber plugs (20) distributed up and down are fixedly connected inside the circular hole (19), and the upper end surfaces of the two rubber plugs (20) are both provided with a cross cutout (21).

6. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: The lifting mechanism comprises a motor (17), a bearing seat (14), a threaded rod (15), a guide rod (16) and a movable frame (18). The rear end of the circumferential surface of the tank body (1) is fixedly connected with two groups of bearing seats (14) distributed left and right. Each group of bearing seats (14) is provided with two and distributed up and down. The threaded rod (15) is rotatably connected inside the group of bearing seats (14) located at the right end, and the guide rod (16) is fixedly connected inside the group of bearing seats (14) located at the left end. The circumferential surface of the threaded rod (15) is threadedly connected with the movable frame (18). The movable frame (18) is fixedly installed on the bottom end of the support plate (11). The guide rod (16) passes through the movable frame (18), and the movable frame (18) is slidably connected to the guide rod (16).

7. A precipitation tank for accurate solid-liquid separation of 1,3-cyclohexanedione as claimed in claim 1, characterized in that: A through hole is formed on the upper end surface of the support plate (11), and the diameter of the through hole is larger than the diameter of the electric telescopic rod (10).

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