A waste liquid recovery device and its recovery method for the preparation of vitamin K3

Abstract

The present invention relates to the technical field of vitamin K3 preparation, and particularly to a waste liquid recovery device and a recovery method for vitamin K3 preparation. The present invention includes a filtration box body, the bottom of the filtration box body is provided with support columns, the top of the filtration box is provided with a feed pipe, the feed pipe is arranged in an L shape, and one end of the feed pipe passes through the filtration box body and extends into the interior of the filtration box body. A filtration mechanism is arranged inside the filtration box body, a clamping mechanism is arranged on the side of the filtration box body, a reduction mechanism is arranged below the filtration mechanism, and a precipitation mechanism is arranged below the reduction mechanism. The present invention can conveniently replace the filtration mechanism, solves the problem of reduced filtration effect caused by the difficulty in replacing the filtration components, and can reduce and precipitate and recover the chromate in vitamin K3, avoiding environmental pollution.

Description

Technical Field

[0001] The present invention relates to the technical field of vitamin K3 preparation, and particularly to a waste liquid recovery device and a recovery method for vitamin K3 preparation. Background Art

[0002] Vitamin K3, also known as menadione, is an organic compound with the chemical formula C11H8O2. Clinically, it belongs to a hemostatic drug and can be used to treat hemorrhagic diseases caused by vitamin K deficiency, such as neonatal hemorrhage, vitamin K deficiency caused by intestinal malabsorption, and hypoprothrombinemia, etc.

[0003] In the production process of vitamin K3, chromium (Cr) usually participates in the reaction as part of the catalyst. Especially in some organic synthesis steps, chromium compounds may be used. If these chromium compounds are not effectively recovered after use, they will cause environmental pollution.

[0004] Therefore, in view of the above problems, a waste liquid recovery device and a recovery method for vitamin K3 preparation are now developed. Summary of the Invention

[0005] In order to overcome the drawback that in the production process of vitamin K3, chromium (Cr) usually participates in the reaction as part of the catalyst. Especially in some organic synthesis steps, chromium compounds may be used. If these chromium compounds are not effectively recovered after use, they will cause environmental pollution, the present invention provides a waste liquid recovery device and a recovery method for vitamin K3 preparation.

[0006] The technical implementation solution of the present invention is: a waste liquid recovery device for the preparation of vitamin K3, including a filtration box body. A support column is arranged at the bottom of the filtration box body. A feed pipe is arranged at the top of the filtration box. The feed pipe is arranged in an L shape, and one end of the feed pipe passes through the filtration box body and extends into the filtration box body. A filtration mechanism is arranged inside the filtration box body. The filtration mechanism includes an installation frame. A bottom filter screen is arranged below the installation frame. A top filter screen is arranged on the upper surface of the installation frame. Positioning bolts are arranged between the top filter screen and the installation frame. An installation mechanism is arranged between the bottom filter screen and the installation frame. Side protection plates are arranged around the top of the installation frame. Connecting rods are arranged on both sides of the installation frame. Second alignment blocks are arranged at one ends of the two connecting rods away from the installation frame. Driving mechanisms are arranged at one ends of each second alignment block away from the connecting rod. A clamping mechanism is arranged on the side surface of the filtration box body. The clamping mechanism includes a placement groove. A plurality of placement grooves are provided. A disassembly groove is provided on the front surface of the filtration box body. A dust-proof baffle is arranged inside the disassembly groove. The placement groove communicates with the disassembly groove. The positions of the placement grooves correspond to the positions and numbers of the connecting rods. An outlet pipe is arranged at the inner bottom end of the filtration box body. The outlet pipe passes through the filtration box body, and a valve is arranged inside the outlet pipe. An operation panel is arranged on one surface of the filtration box body provided with the disassembly groove. A reduction mechanism is arranged below the filtration mechanism. A precipitation mechanism is arranged below the reduction mechanism.

[0007] Optionally, a guiding plate is arranged at the top end inside the filtration box body. A receiving plate is arranged below the filtration mechanism. The receiving plate is fixedly connected to the inner side of the filtration box body. A buffer groove is arranged inside the receiving plate. The inside of the buffer groove is arranged in an inclined shape. A material discharge port is arranged in the middle of the buffer groove. The material discharge port penetrates through the receiving plate. A material discharge pipe is arranged at the bottom of the receiving plate. The position of the material discharge pipe corresponds to the position of the material discharge port.

[0008] Optionally, the driving mechanism includes a placement plate. The placement plate is fixedly connected to the side wall of the filtration box body. A hydraulic push rod is arranged on the upper surface of the placement plate. A push plate is arranged at the top of the output shaft of the hydraulic push rod. A guiding rod is arranged on the top of the push plate. A fixing rod is sleeved outside the guiding rod. A sliding groove is arranged in the middle of the fixing rod. The guiding rod is slidably connected with the sliding groove. A first alignment block is arranged at one end of the fixing rod close to the connecting rod. The first alignment block is connected with the second alignment block in a matching manner. A fixing bolt is arranged inside the first alignment block. The fixing bolt passes through the first alignment block and the second alignment block, and the fixing bolt is threadedly connected with both the first alignment block and the second alignment block.

[0009] Optionally, it further includes that the installation mechanism includes an installation block, a through hole, an installation groove, a sliding groove and an installation rod. The installation block is fixedly connected to the bottom of the installation frame. The through hole is opened in the middle of the installation block. The installation groove is opened at the top of the installation frame and is adapted to the size of the installation block. The sliding groove is opened on one side of the installation groove. The installation rod is movably connected to the sliding groove and is adapted to the size of the through hole.

[0010] Optionally, it further includes that the installation mechanism further includes a slider, a first spring and a pulling block. The slider is fixedly connected to the installation rod and slidably connected to the sliding groove. The first spring is sleeved outside the installation rod and its two ends are respectively fixedly connected to one side of the slider and the inner wall of one side of the sliding groove. The pulling block is fixedly connected to the outer end of the installation rod.

[0011] Optionally, it further includes that the clamping mechanism includes a first positioning groove. The first positioning groove is located at the inner top of the placement groove. A first positioning rod is arranged inside the first positioning groove. The first positioning rod is slidably connected to the first positioning groove. A second spring is sleeved on the surface of the first positioning rod. A first arc-shaped clamping block is arranged at the bottom of the first positioning rod. The clamping mechanism further includes a second positioning groove. A second positioning rod is arranged inside the second positioning groove. The second positioning rod is slidably connected to the second positioning groove. A second arc-shaped clamping block is arranged at the top of the second positioning rod. A third spring is arranged at the bottom of the second positioning rod. The bottom of the third spring is fixedly connected to the inner bottom end of the second positioning groove.

[0012] Optionally, it further includes that the reduction mechanism includes a reduction box and a reduction agent inlet. The reduction box is located inside the filter box body and is directly below the blanking pipe. A reduction chamber is arranged inside the reduction box. A first stirrer is arranged inside the reduction chamber. The reduction agent inlet is outside the filter box body. The discharge port of the reduction agent is directly above the reduction chamber. The reduction agent adopts sodium thiosulfate or sodium sulfite. A first liquid outlet pipe is arranged at the bottom of the reduction chamber.

[0013] Optionally, the precipitation mechanism includes a precipitation box and a precipitation agent inlet. The precipitation box is located below the reduction box and is fixedly connected to the inner wall of the filter box body. A precipitation chamber is arranged inside the precipitation box. A second stirrer is arranged inside the precipitation chamber. The precipitation agent inlet is outside the filter box body. The discharge port of the precipitation agent inlet is above the filter chamber. The precipitation agent adopts sodium hydroxide or ammonium hydroxide. A second liquid outlet pipe is arranged at the bottom of the precipitation box.

[0014] Optionally, a placement plate is provided inside the filter box below the precipitation box. A filter bin is slidably connected to the upper surface of the placement plate. The filter bin is located below the second liquid outlet pipe. A diversion block is provided at the corresponding position inside the filter bin and the second liquid outlet pipe. A filter plate is provided at the bottom of the filter bin. A taking slot is opened at the corresponding position between the filter box and the filter bin.

[0015] A waste liquid recovery method for the preparation of vitamin K3 includes the following steps:

[0016] Step 1: Place the bottom filter screen above the installation frame and align the installation block with the installation slot. Then, pull the pull block outward to drive the installation rod to move outward and compress the first spring through the slider. When the installation rod moves out of the installation slot, move the bottom filter screen and the installation seat downward until the installation block is inserted into the installation slot. Release the pull block, and the first spring rebounds and drives the installation rod to slide inward along the chute through the slider. When the installation rod is inserted into the through hole, the installation block can be fixed in the installation slot, thus completing the installation of the bottom filter screen. After the bottom filter screen is installed, fill the inside of the bottom filter screen with activated carbon, and then install the top filter screen above the installation frame through the set positioning bolts, so that the top filter screen and the bottom filter screen block the activated carbon.

[0017] Step 2: Pass the connecting rod through the placement slot to press the first arc-shaped clamping block and the second arc-shaped clamping block, so that the first arc-shaped clamping block and the second arc-shaped clamping block respectively remember the second spring and the third spring, so that the connecting rod is located between the first arc-shaped clamping block and the second arc-shaped clamping block, and the connecting rod is fixed by the reaction forces of the second spring and the third spring. At the same time, match and connect the second alignment block at the end of the connecting rod with the first alignment block at the end of the fixed rod, and fix the first alignment block and the second alignment block through the fixing bolt.

[0018] Step 3: Inject the vitamin K3 waste liquid into the filter box through the feed pipe by operating the control panel, and guide it through the guide plate, and then fall into the filtering mechanism. The side guard plate is used to prevent the vitamin K3 waste liquid from leaking. Then, the vitamin K3 waste liquid is filtered by the activated carbon inside the top filter screen and the bottom filter screen. The filtered vitamin K3 waste liquid enters the buffer tank, and enters the reduction tank through the discharge port and the discharge pipe. The chromium (VI) in the waste liquid is reduced by the reduction agent to make chromium (VI) reduced to chromium (III). Then, the waste liquid is stirred by the set first stirrer, so that the chromium (VI) in the waste liquid fully reacts with the reduction agent. After the reaction, it enters the precipitation box through the first liquid outlet pipe.

[0019] Step 4: Change the pH value of the waste liquid in the precipitation tank to make the pH value of the waste liquid between 4 and 6. Then, add hydroxide to the precipitation tank through the precipitation agent inlet so that chromium(III) in the waste liquid reacts with the hydroxide to form chromium hydroxide precipitate. Stir the waste liquid with the second stirrer to accelerate the precipitation of chromium hydroxide. At this time, discharge the waste liquid containing chromium hydroxide precipitate through the second liquid discharge pipe, and filter it through the filter plate at the bottom of the filter chamber. The recovered vitamin K3 waste liquid is discharged from the discharge pipe, and the filter chamber is taken out through the taking tank to recover the chromium hydroxide precipitate inside the filter chamber, avoiding the pollution of the environment by chromium compounds in the vitamin K3 waste liquid and recovering the chromium compounds in the vitamin K3 waste liquid;

[0020] Step 5: After the filtration and recovery are completed, start the hydraulic push rod through the operation panel so that it drives the push plate to move through the output shaft. The push plate drives the guide rod to move, so that the guide rod slides inside the chute, so that the push plate pushes the fixed rod and the connecting rod to move, and then makes the positions of the filtering mechanism and the disassembly groove correspond. At this time, just hold the installation frame and release the fixing of the first alignment block and the second alignment block by the fixing bolt, and then it can be pulled out to complete the disassembly of the filtering mechanism. Then, disassemble the bottom filter screen and the top filter screen and replace the activated carbon.

[0021] The present invention has the following advantages:

[0022] 1. By providing an installation mechanism, place the bottom filter screen above the installation frame and align the installation block with the installation groove. Then, pull the pull block outward to drive the installation rod to move outward and squeeze the first spring through the slider. When the installation rod moves out of the installation groove, move the bottom filter screen and the installation seat downward until the installation block is inserted into the installation groove. Release the pull block, and the first spring rebounds and drives the installation rod to slide inward along the chute through the slider. When the installation rod is inserted into the through hole, the installation block can be fixed in the installation groove, thus completing the installation of the bottom filter screen. After the bottom filter screen is installed, fill the inside of the bottom filter screen with activated carbon, and then install the top filter screen above the installation frame through the set positioning bolts, so that the top filter screen and the bottom filter screen block the activated carbon, ensuring that the activated carbon can filter the vitamin K3 waste liquid and remove the insoluble substances in the waste liquid, thus ensuring the filtering effect and improving the filtering effect of the device on the vitamin K3 waste liquid;

[0023] Second, pass the connecting rod through the placement groove, so that the connecting rod squeezes the first arc-shaped clamping block and the second arc-shaped clamping block, making the first arc-shaped clamping block and the second arc-shaped clamping block respectively remember the second spring and the third spring, so that the connecting rod is located between the first arc-shaped clamping block and the second arc-shaped clamping block, and fix the connecting rod through the reaction force of the second spring and the third spring. At the same time, match and connect the second alignment block at the end of the connecting rod with the first alignment block at the end of the fixed rod, and fix the first alignment block and the second alignment block through the fixing bolt to ensure the position of the filtering mechanism, making the installation of the filtering mechanism more convenient;

[0024] Third, start the hydraulic push rod to drive the push plate to move through the output shaft, and the push plate drives the guide rod to move, so that the guide rod slides inside the chute, so that the push plate pushes the fixed rod and the connecting rod to move, and then makes the positions of the filtering mechanism and the disassembly groove correspond. At this time, just hold the installation frame and release the fixing of the fixing bolt on the first alignment block and the second alignment block, and then pull it outwards to complete the disassembly of the filtering mechanism. Then disassemble the bottom filter screen and the top filter screen and replace the activated carbon, solving the problem of the decline in the filtering effect caused by the difficult replacement of the filtering mechanism;

[0025] Fourth, inject the vitamin K3 waste liquid from the feed pipe into the filter box body, guide it through the guide plate, and then fall into the filtering mechanism. The side guard plate is used to prevent the vitamin K3 waste liquid from leaking. Then, the vitamin K3 waste liquid is filtered by the activated carbon inside the top filter screen and the bottom filter screen. The filtered vitamin K3 waste liquid enters the buffer tank, and enters the reduction tank through the discharge port and the discharge pipe. The chromium (VI) in the waste liquid is reduced by the reduction agent to make chromium (VI) reduce to chromium (III). Then, the first stirrer is used to stir the waste liquid, so that the chromium (VI) in the waste liquid fully reacts with the reduction agent. After the reaction, it enters the precipitation tank through the first liquid discharge pipe, and hydroxides are added to the precipitation tank through the precipitation agent inlet, so that chromium (III) in the waste liquid reacts with the hydroxides to generate chromium hydroxide precipitation. The second stirrer is used to stir the waste liquid to accelerate the precipitation of chromium hydroxide. At this time, the waste liquid containing chromium hydroxide precipitation is discharged through the second liquid discharge pipe, and filtered through the filter plate at the bottom of the filter bin. The recovered vitamin K3 waste liquid is discharged from the discharge pipe, and the filter bin is taken out through the taking groove to recover the chromium hydroxide precipitation inside the filter bin, avoiding the pollution of the chromium compounds in the vitamin K3 waste liquid to the environment, and the chromium compounds in the vitamin K3 waste liquid can be recovered. Description of the Drawings

[0026] Figure 1 It is a schematic diagram of the overall structure of a waste liquid recovery device for vitamin K3 preparation;

[0027] Figure 2Schematic diagram of the internal structure of a waste liquid recovery device for preparing vitamin K3;

[0028] Figure 3 It is Figure 2 The sectional view taken along line A-A in;

[0029] Figure 4 Schematic diagram of the structure of the filtering component in a waste liquid recovery device for preparing vitamin K3;

[0030] Figure 5 Schematic diagram of the structure of the installation component in a waste liquid recovery device for preparing vitamin K3;

[0031] Figure 6 It is Figure 2 The enlarged structure diagram at position B in;

[0032] The meanings of the reference numerals in the figure: 1, filtering box body; 2, support column; 3, driving mechanism; 31, placement plate; 32, hydraulic push rod; 33, push plate; 34, guide rod; 35, fixed rod; 36, sliding groove; 37, first alignment block; 38, fixing bolt; 4, filtering mechanism; 41, installation frame; 42, side protection plate; 43, top filter net; 44, positioning bolt; 45, bottom filter net; 46, connecting rod; 47, second alignment block; 5, feed pipe; 6, operation panel; 7, discharge pipe; 8, valve; 9, installation mechanism; 91, installation block; 92, through hole; 93, installation groove; 94, sliding groove; 95, installation rod; 96, slider; 97, first spring; 98, pulling block; 10, receiving plate; 11, buffer groove; 12, discharge opening; 13, discharge pipe; 14, guiding plate; 15, clamping mechanism; 1501, placement groove; 1502, first positioning groove; 1503, first positioning rod; 1504, second spring; 1505, first arc-shaped clamping block; 1506, second positioning groove; 1507, third spring; 1508, second positioning rod; 1509, second arc-shaped clamping block; 16, reduction mechanism; 1601, reduction box; 1602, reduction bin; 1603, first mixer; 1604, reduction reagent inlet; 1605, first liquid outlet pipe; 17, precipitation mechanism; 1701, precipitation box; 1702, precipitation bin; 1703, second mixer; 1704, precipitation reagent inlet; 1705, second liquid outlet pipe; 18, filtering bin; 19, filter plate; 20, taking groove; 21, placement plate. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby declared that the orientation terms such as up, down, left, right, front, back, inside and outside that appear or will appear in the present invention are only based on the accompanying drawings of the present invention, and they do not specifically limit the present invention.

[0034] Example 1, as Figures 1 to 6 shown, a waste liquid recovery device for the preparation of vitamin K3, comprising a filtration box body 1, a support column 2 is arranged at the bottom of the filtration box body 1, a feed pipe 5 is arranged at the top of the filtration box, the feed pipe 5 is arranged in an L shape, and one end of the feed pipe 5 passes through the filtration box body 1 and extends into the filtration box body 1. A filtration mechanism 4 is arranged inside the filtration box body 1. The filtration mechanism 4 includes a mounting frame 41. A bottom filter screen 45 is arranged below the mounting frame 41. A top filter screen 43 is arranged on the upper surface of the mounting frame 41. A positioning bolt 44 is arranged between the top filter screen 43 and the mounting frame 41. An installation mechanism 9 is arranged between the bottom filter screen 45 and the mounting frame 41. Side guard plates 42 are arranged around the top of the mounting frame 41. Connecting rods 46 are arranged on both sides of the mounting frame 41. Second alignment blocks 47 are arranged at one ends of the two connecting rods 46 far away from the mounting frame 41. A driving mechanism 3 is arranged at one end of each second alignment block 47 far away from the connecting rod 46. A clamping mechanism 15 is arranged on the side surface of the filtration box body 1. The clamping mechanism 15 includes a placement groove 1501. A plurality of placement grooves 1501 are provided. A disassembly groove is provided on the front surface of the filtration box body 1. A dust-proof baffle is arranged inside the disassembly groove. The placement groove 1501 is communicated with the disassembly groove. The positions of the placement grooves 1501 correspond to the positions and numbers of the connecting rods 46. An outlet pipe 7 is arranged at the inner bottom end of the filtration box body 1. The outlet pipe 7 passes through the filtration box body 1, and a valve 8 is arranged inside the outlet pipe 7. An operation panel 6 is arranged on one surface of the filtration box body 1 provided with the disassembly groove. A reduction mechanism 16 is arranged below the filtration mechanism 4. A precipitation mechanism 17 is arranged below the reduction mechanism 16.

[0035] As Figure 2 shown, a guide plate 14 is arranged at the inner top end of the filtration box body 1. A receiving plate 10 is arranged below the filtration mechanism 4. The receiving plate 10 is fixedly connected to the inner side of the filtration box body 1. A buffer groove 11 is arranged inside the receiving plate 10. The inside of the buffer groove 11 is arranged in an inclined shape. A blanking port 12 is arranged in the middle of the buffer groove 11. The blanking port 12 penetrates through the receiving plate 10. A blanking pipe 13 is arranged at the bottom of the receiving plate 10. The position of the blanking pipe 13 corresponds to the position of the blanking port 12. The guide plate 14 can ensure that the waste liquid of vitamin K3 does not easily leak out.

[0036] As Figure 2 、 Figure 3 and Figure 6As shown in the figure, the driving mechanism 3 includes a placement plate 2131. The placement plate 2131 is fixedly connected to the side wall of the filter box body 1. A hydraulic push rod 32 is arranged on the upper surface of the placement plate 2131. The top of the output shaft of the hydraulic push rod 32 is provided with a push plate 33. The top of the push plate 33 is provided with a guide rod 34. A fixed rod 35 is sleeved outside the guide rod 34. A chute 36 is opened in the middle of the fixed rod 35. The guide rod 34 is slidably connected to the chute 36. One end of the fixed rod 35 close to the connecting rod 46 is provided with a first alignment block 37. The first alignment block 37 is connected to the second alignment block 47 in a matching manner. And a fixing bolt 38 is arranged inside the first alignment block 37. The fixing bolt 38 passes through the first alignment block 37 and the second alignment block 47, and the fixing bolt 38 is threadedly connected to both the first alignment block 37 and the second alignment block 47.

[0037] It should be noted that when the hydraulic push rod 32 is started, it drives the push plate 33 to move through the output shaft. The push plate 33 drives the guide rod 34 to move, so that the guide rod 34 slides inside the chute 36, thereby enabling the push plate 33 to push the fixed rod 35 and the connecting rod 46 to move, and further making the positions of the filtering mechanism 4 and the disassembly groove correspond. At this time, only need to hold the installation frame 41 and release the fixation of the fixing bolt 38 on the first alignment block 37 and the second alignment block 47, then it can be pulled outwards to complete the disassembly of the filtering mechanism 4. Then, the bottom filter screen 45 and the top filter screen 43 can be disassembled to replace the activated carbon, which solves the problem of the decline in the filtering effect caused by the difficulty in replacing the filtering mechanism 4.

[0038] As Figure 4 and Figure 5 shown in the figure, the installation mechanism 9 includes an installation block 91, a through hole 92, an installation groove 93, a sliding groove 94 and an installation rod 95. The installation block 91 is fixedly connected to the bottom of the installation frame 41. The through hole 92 is opened in the middle of the installation block 91. The installation groove 93 is opened on the top of the installation frame 41 and is adapted to the size of the installation block 91. The sliding groove 94 is opened on one side of the installation groove 93. The installation rod 95 is movably connected to the sliding groove 94 and is adapted to the size of the through hole 92. The installation mechanism 9 further includes a slider 96, a first spring 97 and a pulling block 98. The slider 96 is fixedly connected to the installation rod 95 and is slidably connected to the chute 36. The first spring 97 is sleeved outside the installation rod 95 and the two ends are respectively fixedly connected to one side of the slider 96 and one side inner wall of the chute 36. The pulling block 98 is fixedly connected to the outer end of the installation rod 95.

[0039] It should be noted that by providing the installation mechanism 9, the bottom filter screen 45 is placed above the installation frame 41 and the installation block 91 is aligned with the installation groove 93. Then, the pull block 98 is pulled outward to drive the installation rod 95 to move outward and compress the first spring 97 through the slider 96. When the installation rod 95 moves out of the installation groove 93, the bottom filter screen 45 and the installation base are moved downward until the installation block 91 is inserted into the installation groove 93. The pull block 98 is released, and the first spring 97 rebounds and drives the installation rod 95 to slide inward along the sliding groove 36 through the slider 96. When the installation rod 95 is inserted into the through hole 92, the installation block 91 can be fixed in the installation groove 93, thus completing the installation of the bottom filter screen 45. After the bottom filter screen 45 is installed, the inside of the bottom filter screen 45 is filled with activated carbon, and then the top filter screen 43 is installed above the installation frame 41 through the provided positioning bolts 44, so that the top filter screen 43 and the bottom filter screen 45 block the activated carbon, ensuring that the activated carbon can filter the vitamin K3 waste liquid and remove the insoluble substances in the waste liquid, thereby ensuring the filtering effect and improving the filtering effect of the device on the vitamin K3 waste liquid.

[0040] As Figure 2 and Figure 6 shown, the clamping mechanism 15 includes a first positioning groove 1502, which is located at the inner top end of the placement groove 1501. A first positioning rod 1503 is arranged inside the first positioning groove 1502. The first positioning rod 1503 is slidably connected to the first positioning groove 1502. A second spring 1504 is sleeved on the surface of the first positioning rod 1503. A first arc-shaped clamping block 1505 is arranged at the bottom of the first positioning rod 1503. The clamping mechanism 15 further includes a second positioning groove 1506. A second positioning rod 1508 is arranged inside the second positioning groove 1506. The second positioning rod 1508 is slidably connected to the second positioning groove 1506. A second arc-shaped clamping block 1509 is arranged at the top of the second positioning rod 1508. A third spring 1507 is arranged at the bottom of the second positioning rod 1508. The bottom of the third spring 1507 is fixedly connected to the inner bottom end of the second positioning groove 1506.

[0041] It should be noted that by passing the connecting rod 46 through the placement groove 1501, the connecting rod 46 presses the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509, causing the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509 to respectively remember the second spring 1504 and the third spring 1507. As a result, the connecting rod 46 is located between the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509, and the connecting rod 46 is fixed by the reaction forces of the second spring 1504 and the third spring 1507. At the same time, the second alignment block 47 at the end of the connecting rod 46 is matched and connected with the first alignment block 37 at the end of the fixed rod 35, and the first alignment block 37 and the second alignment block 47 are fixed by the fixing bolt 38 to ensure the position of the filtering mechanism 4 and make the installation of the filtering mechanism 4 more convenient.

[0042] As Figure 2 shown, the reduction mechanism 16 includes a reduction tank 1601 and a reduction agent inlet 1604. The reduction tank 1601 is located inside the filter housing 1 and is directly below the feeding pipe 13. A reduction chamber 1602 is provided inside the reduction tank 1601, and a first stirrer 1603 is arranged inside the reduction chamber 1602. The reduction agent inlet 1604 is outside the filter housing 1, and the discharge port of the reduction agent is directly above the reduction chamber 1602. The reduction agent uses sodium thiosulfate or sodium sulfite. A first liquid discharge pipe 1605 is provided at the bottom of the reduction chamber 1602. The precipitation mechanism 17 includes a precipitation tank 1701 and a precipitation agent inlet 1704. The precipitation tank 1701 is located below the reduction tank 1601 and is fixedly connected to the inner wall of the filter housing 1. A precipitation chamber 1702 is provided inside the precipitation tank 1701, and a second stirrer 1703 is arranged inside the precipitation chamber 1702. The precipitation agent inlet 1704 is outside the filter housing 1, and the discharge port of the precipitation agent inlet 1704 is above the filter chamber 18. The precipitation agent uses sodium hydroxide or ammonium hydroxide. A second liquid discharge pipe 1705 is provided at the bottom of the precipitation tank 1701. A placement plate 2131 is arranged on the inner side of the filter housing 1 below the precipitation tank 1701. The filter chamber 18 is slidably connected to the upper surface of the placement plate 2131. The filter chamber 18 is located below the second liquid discharge pipe 1705. A diversion block is arranged inside the filter chamber 18 corresponding to the second liquid discharge pipe 1705. A filter plate 19 is provided at the bottom of the filter chamber 18. A taking groove 20 is formed in the filter housing 1 corresponding to the filter chamber 18.

[0043] It should be noted that the vitamin K3 waste liquid is injected into the filtration box body 1 through the feed pipe 5 and guided by the guiding plate 14, and then falls into the filtration mechanism 4. The side guard plate 42 is used to prevent the leakage of the vitamin K3 waste liquid. Then, the activated carbon inside the top filter screen 43 and the bottom filter screen 45 is used to filter the vitamin K3 waste liquid. The filtered vitamin K3 waste liquid enters the buffer tank 11, and enters the reduction tank 1601 through the discharge port 12 and the discharge pipe 13. The chromium (VI) in the waste liquid is reduced by the reducing agent, so that chromium (VI) is reduced to chromium (III). Then, the first stirrer 1603 is used to stir the waste liquid, so that the chromium (VI) in the waste liquid fully reacts with the reducing agent. After the reaction, it enters the precipitation tank 1701 through the first liquid discharge pipe 1605, and hydroxides are added into the precipitation tank 1701 through the precipitation agent inlet 1704, so that chromium (III) in the waste liquid reacts with the hydroxides to generate chromium hydroxide precipitate. The second stirrer 1703 is used to stir the waste liquid to accelerate the precipitation of chromium hydroxide. At this time, the waste liquid containing chromium hydroxide precipitate is discharged through the second liquid discharge pipe 1705 and filtered by the filter plate 19 at the bottom of the filtration chamber 18. The recovered vitamin K3 waste liquid is discharged from the discharge pipe 7, and the filtration chamber 18 is taken out through the taking tank 20 to recover the chromium hydroxide precipitate inside the filtration chamber 18, so as to avoid the pollution of the chromium compounds in the vitamin K3 waste liquid to the environment, and the chromium compounds in the vitamin K3 waste liquid can be recovered.

[0044] Example 2. A method for recycling waste liquid in the preparation of vitamin K3 includes the following steps:

[0045] Step 1: Place the bottom filter screen 45 above the installation frame 41 and align the installation block 91 with the installation groove 93. Then, pull the pull block 98 outward to drive the installation rod 95 to move outward and squeeze the first spring 97 through the slider 96. When the installation rod 95 moves out of the installation groove 93, move the bottom filter screen 45 and the installation seat downward until the installation block 91 is inserted into the installation groove 93. Release the pull block 98, and the first spring 97 rebounds and drives the installation rod 95 to slide inward along the chute 36 through the slider 96. When the installation rod 95 is inserted into the through hole 92, the installation block 91 can be fixed in the installation groove 93, thus completing the installation of the bottom filter screen 45. After the bottom filter screen 45 is installed, the inside of the bottom filter screen 45 is filled with activated carbon, and then the top filter screen 43 is installed above the installation frame 41 through the set positioning bolt 44, so that the top filter screen 43 and the bottom filter screen 45 block the activated carbon;

[0046] Step 2: Pass the connecting rod 46 through the placement groove 1501, so that the connecting rod 46 presses the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509, causing the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509 to respectively remember the second spring 1504 and the third spring 1507, so that the connecting rod 46 is located between the first arc-shaped clamping block 1505 and the second arc-shaped clamping block 1509, and the connecting rod 46 is fixed by the reaction forces of the second spring 1504 and the third spring 1507. At the same time, match and connect the second alignment block 47 at the end of the connecting rod 46 with the first alignment block 37 at the end of the fixed rod 35, and fix the first alignment block 37 and the second alignment block 47 with the fixing bolt 38;

[0047] Step 3: Inject the vitamin K3 waste liquid from the feed pipe 5 into the filtering box body 1 through the operation panel 6, and guide it through the guiding plate 14, then it falls into the filtering mechanism 4. The side guard plate 42 is used to prevent the vitamin K3 waste liquid from leaking. Then, the vitamin K3 waste liquid is filtered by the activated carbon inside the top filter screen 43 and the bottom filter screen 45. The filtered vitamin K3 waste liquid enters the buffer tank 11, and enters the reduction box 1601 through the discharge port 12 and the discharge pipe 13. The chromium (VI) in the waste liquid is reduced by sodium thiosulfate or sodium sulfite to convert chromium (VI) into chromium (III). Then, the waste liquid is agitated by the first stirrer 1603 provided, so that the chromium (VI) in the waste liquid fully reacts with the reduction agent. After the reaction, it enters the precipitation tank 1701 through the first liquid discharge pipe 1605;

[0048] Step 4: Change the pH value of the waste liquid in the precipitation tank 1701 so that the pH value of the waste liquid is between 4 and 6. Then, add sodium hydroxide or ammonium hydroxide to the precipitation tank 1701 through the precipitation agent inlet 1704, so that chromium (III) in the waste liquid reacts with the hydroxide to generate chromium hydroxide precipitation. The waste liquid is stirred by the second stirrer 1703 to accelerate the precipitation of chromium hydroxide. At this time, the waste liquid containing chromium hydroxide precipitation is discharged through the second liquid discharge pipe 1705, and is filtered by the filter plate 19 at the bottom of the filter bin 18. The recovered vitamin K3 waste liquid is discharged from the discharge pipe 7, and the filter bin 18 is taken out through the taking groove 20 to recover the chromium hydroxide precipitation inside the filter bin 18, preventing the chromium compounds in the vitamin K3 waste liquid from polluting the environment and recovering the chromium compounds in the vitamin K3 waste liquid;

[0049] Step Five: After the filtering and recycling are completed, start the hydraulic push rod 32 through the operation panel 6 so that it drives the push plate 33 to move through the output shaft. The push plate 33 drives the guide rod 34 to move, causing the guide rod 34 to slide inside the chute 36. Thus, the push plate 33 pushes the fixed rod 35 and the connecting rod 46 to move, further making the positions of the filtering mechanism 4 and the disassembly groove correspond. At this time, only need to hold the installation frame 41 and release the fixation of the fixing bolt 38 on the first alignment block 37 and the second alignment block 47, then it can be pulled outwards to complete the disassembly of the filtering mechanism 4. Then disassemble the bottom filter screen 45 and the top filter screen 43 to replace the activated carbon. The above has described in detail the embodiments of the present invention in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can also be made without departing from the gist of the present invention.

Claims

1. A waste liquid recovery device for preparing vitamin K3, comprising a filtration box body (1), a support column (2) is arranged at the bottom of the filtration box body (1), a feed pipe (5) is arranged at the top of the filtration box, the feed pipe (5) is arranged in an L shape, and one end of the feed pipe (5) passes through the filtration box body (1) and extends into the filtration box body (1). A filtration mechanism (4) is arranged inside the filtration box body (1). The filtration mechanism (4) includes an installation frame (41), a bottom filter screen (45) is arranged below the installation frame (41), a top filter screen (43) is arranged on the upper surface of the installation frame (41), a positioning bolt (44) is arranged between the top filter screen (43) and the installation frame (41), an installation mechanism (9) is arranged between the bottom filter screen (45) and the installation frame (41), side protection plates (42) are arranged around the top of the installation frame (41), connecting rods (46) are arranged on both sides of the installation frame (41), second alignment blocks (47) are arranged at one ends of the two connecting rods (46) far away from the installation frame (41), and a driving mechanism (3) is arranged at one end of each second alignment block (47) far away from the connecting rod (46). A clamping mechanism (15) is arranged on the side surface of the filtration box body (1). The clamping mechanism (15) includes placing grooves (1501), and a plurality of placing grooves (1501) are provided. A disassembly groove is provided on the front surface of the filtration box body (1), a dust-proof baffle is arranged inside the disassembly groove, the placing grooves (1501) are communicated with the disassembly groove, and the positions and numbers of the placing grooves (1501) correspond to the positions and numbers of the connecting rods (46). A discharge pipe (7) is arranged at the inner bottom end of the filtration box body (1), the discharge pipe (7) passes through the filtration box body (1), and a valve (8) is arranged inside the discharge pipe (7). An operation panel (6) is arranged on one surface of the filtration box body (1) provided with the disassembly groove. A reduction mechanism (16) is arranged below the filtration mechanism (4), and a precipitation mechanism (17) is arranged below the reduction mechanism (16). The installation mechanism (9) includes an installation block (91), a through hole (92), an installation groove (93), a sliding groove (94) and an installation rod (95). The installation block (91) is fixedly connected to the bottom of the installation frame (41), the through hole (92) is opened in the middle of the installation block (91), the installation groove (93) is opened at the top of the installation frame (41) and is adapted to the size of the installation block (91), the sliding groove (94) is opened on one side of the installation groove (93), the installation rod (95) is movably connected to the sliding groove (94) and is adapted to the size of the through hole (92). The installation mechanism (9) further includes a slider (96), a first spring (97) and a pull block (98). The slider (96) is fixedly connected to the installation rod (95) and is slidably connected to the chute (36).The first spring (97) is sleeved outside the mounting rod (95), and both ends are fixedly connected to one side of the slider (96) and one side inner wall of the sliding groove (36) respectively. The pulling block (98) is fixedly connected to the outer end of the mounting rod (95).

2. The waste liquid recovery device for preparing vitamin K3 according to claim 1, characterized in that, At the inner top of the filter box body (1), a guiding plate (14) is provided. Below the filtering mechanism (4), a receiving plate (10) is provided. The receiving plate (10) is fixedly connected to the inner side of the filter box body (1). Inside the receiving plate (10), a buffer groove (11) is provided. The inside of the buffer groove (11) is inclined. In the middle of the buffer groove (11), a material discharging port (12) is provided. The material discharging port (12) penetrates through the receiving plate (10). At the bottom of the receiving plate (10), a material discharging pipe (13) is provided. The material discharging pipe (13) corresponds to the position of the material discharging port (12).

3. A waste liquid recovery device for preparing vitamin K3 according to claim 1, characterized in that, The driving mechanism (3) includes a placing plate (31). The placing plate (31) is fixedly connected to the side wall of the filter box body (1). On the upper surface of the placing plate (31), a hydraulic push rod (32) is provided. At the top of the output shaft of the hydraulic push rod (32), a pushing plate (33) is provided. At the top of the pushing plate (33), a guiding rod (34) is provided. Outside the guiding rod (34), a fixing rod (35) is sleeved. In the middle of the fixing rod (35), a sliding groove (36) is provided. The guiding rod (34) is slidably connected to the sliding groove (36). At one end of the fixing rod (35) close to the connecting rod (46), a first alignment block (37) is provided. The first alignment block (37) is connected to the second alignment block (47) in a matching manner. And inside the first alignment block (37), a fixing bolt (38) is provided. The fixing bolt (38) passes through the first alignment block (37) and the second alignment block (47), and the fixing bolt (38) is threadedly connected to both the first alignment block (37) and the second alignment block (47).

4. A waste liquid recovery device for preparing vitamin K3 according to claim 1, characterized in that, The clamping mechanism (15) includes a first positioning groove (1502). The first positioning groove (1502) is located at the inner top of the placing groove (1501). Inside the first positioning groove (1502), a first positioning rod (1503) is provided. The first positioning rod (1503) is slidably connected to the first positioning groove (1502). On the surface of the first positioning rod (1503), a second spring (1504) is sleeved. At the bottom of the first positioning rod (1503), a first arc-shaped clamping block (1505) is provided. The clamping mechanism (15) further includes a second positioning groove (1506). Inside the second positioning groove (1506), a second positioning rod (1508) is provided. The second positioning rod (1508) is slidably connected to the second positioning groove (1506). At the top of the second positioning rod (1508), a second arc-shaped clamping block (1509) is provided. At the bottom of the second positioning rod (1508), a third spring (1507) is provided. The bottom of the third spring (1507) is fixedly connected to the inner bottom end of the second positioning groove (1506).

5. The waste liquid recovery device for preparing vitamin K3 according to claim 1 is characterized in that, The reduction mechanism (16) includes a reduction tank (1601) and a reduction agent inlet (1604). The reduction tank (1601) is located inside the filtration box body (1), and the reduction tank (1601) is directly below the blanking pipe (13). A reduction chamber (1602) is arranged inside the reduction tank (1601), and a first mixer (1603) is arranged inside the reduction chamber (1602). The reduction agent inlet (1604) is located outside the filtration box body (1), and the discharge port of the reduction agent is directly above the reduction chamber (1602). The reduction agent is sodium thiosulfate or sodium sulfite. A first liquid outlet pipe (1605) is arranged at the bottom of the reduction chamber (1602).

6. A waste liquid recovery device for the preparation of vitamin K3 according to claim 1, characterized in that, The precipitation mechanism (17) includes a precipitation tank (1701) and a precipitation agent inlet (1704). The precipitation tank (1701) is located below the reduction tank (1601), and the precipitation tank (1701) is fixedly connected to the inner wall of the filtration box body (1). A precipitation chamber (1702) is arranged inside the precipitation tank (1701), and a second mixer (1703) is arranged inside the precipitation chamber (1702). The precipitation agent inlet (1704) is located outside the filtration box body (1), and the discharge port of the precipitation agent inlet (1704) is above the filtration chamber (18). The precipitation agent is sodium hydroxide or ammonium hydroxide. A second liquid outlet pipe (1705) is arranged at the bottom of the precipitation tank (1701).

7. A waste liquid recovery device for preparing vitamin K3 according to claim 6, characterized in that, A placement plate (31) is arranged on the inner side of the filtration box body (1) below the precipitation tank (1701). A filtration chamber (18) is slidably connected to the upper surface of the placement plate (31). The filtration chamber (18) is located below the second liquid outlet pipe (1705). A diversion block is arranged inside the filtration chamber (18) corresponding to the second liquid outlet pipe (1705). A filter plate (19) is arranged at the bottom of the filtration chamber (18). A taking groove (20) is formed at the position of the filtration box body (1) corresponding to the filtration chamber (18).

8. A waste liquid recovery method for the preparation of vitamin K3 according to claim 1, which is applied to a waste liquid recovery device for the preparation of vitamin K3 described in any one of claims 1-7 above, characterized in that, Comprising the following steps: Step 1: Place the bottom filter screen (45) above the mounting frame (41) and align the mounting block (91) with the mounting groove (93). Then, pull the pulling block (98) outward to drive the mounting rod (95) to move outward and compress the first spring (97) through the slider (96). When the mounting rod (95) moves out of the mounting groove (93), move the bottom filter screen (45) and the mounting seat downward until the mounting block (91) is inserted into the mounting groove (93). Release the pulling block (98), and the first spring (97) rebounds and drives the mounting rod (95) to slide inward along the chute (36) through the slider (96). When the mounting rod (95) is inserted into the through hole (92), the mounting block (91) can be fixed in the mounting groove (93), thus completing the installation of the bottom filter screen (45). After the bottom filter screen (45) is installed, fill the inside of the bottom filter screen (45) with activated carbon, and then install the top filter screen (43) above the mounting frame (41) through the set positioning bolt (44) to block the activated carbon with the top filter screen (43) and the bottom filter screen (45); Step 2: Pass the connecting rod (46) through the placement groove (1501) to squeeze the first arc-shaped clamping block (1505) and the second arc-shaped clamping block (1509), so that the first arc-shaped clamping block (1505) and the second arc-shaped clamping block (1509) respectively remember the second spring (1504) and the third spring (1507), thereby positioning the connecting rod (46) between the first arc-shaped clamping block (1505) and the second arc-shaped clamping block (1509), and fixing the connecting rod (46) through the reaction forces of the second spring (1504) and the third spring (1507). At the same time, match and connect the second alignment block (47) at the end of the connecting rod (46) with the first alignment block (37) at the end of the fixed rod (35), and fix the first alignment block (37) and the second alignment block (47) through the fixing bolt (38); Step 3: Inject the vitamin K3 waste liquid into the filter box body (1) from the feed pipe (5) through the operation panel (6), and guide it through the guiding plate (14), then it falls into the filtering mechanism (4). The side protection plate (42) is used to prevent the vitamin K3 waste liquid from leaking. Then, the activated carbon inside the top filter screen (43) and the bottom filter screen (45) filters the vitamin K3 waste liquid. The filtered vitamin K3 waste liquid enters the buffer tank (11) and enters the reduction tank (1601) through the discharge port (12) and the discharge pipe (13). The chromium (VI) in the waste liquid is reduced by the reducing agent to chromium (III). Then, the set first stirrer (1603) agitates the waste liquid, so that the chromium (VI) in the waste liquid fully reacts with the reducing agent. After the reaction, it enters the sedimentation tank (1701) through the first liquid discharge pipe (1605); Step 4: Change the pH value of the waste liquid in the precipitation tank (1701) so that the pH value of the waste liquid is between 4 and 6. Then, add hydroxide to the precipitation tank (1701) through the precipitation agent inlet (1704) to react chromium (III) in the waste liquid with the hydroxide to form chromium hydroxide precipitate. Stir the waste liquid with the second stirrer (1703) to accelerate the precipitation of chromium hydroxide. At this time, discharge the waste liquid containing chromium hydroxide precipitate through the second liquid outlet pipe (1705) and filter it through the filter plate (19) at the bottom of the filter chamber (18). The recovered vitamin K3 waste liquid is discharged from the discharge pipe (7). Take out the filter chamber (18) through the taking slot (20) to recover the chromium hydroxide precipitate inside the filter chamber (18), avoid the chromium compounds in the vitamin K3 waste liquid from polluting the environment, and recover the chromium compounds in the vitamin K3 waste liquid; Step 5: After the filtration and recovery are completed, start the hydraulic push rod (32) through the operation panel (6) so that it drives the push plate (33) to move through the output shaft. The push plate (33) drives the guide rod (34) to move, so that the guide rod (34) slides inside the chute (36), thereby enabling the push plate (33) to push the fixed rod (35) and the connecting rod (46) to move, and further making the positions of the filtering mechanism (4) and the disassembly slot correspond. At this time, just hold the installation frame (41) and release the fixing of the first alignment block (37) and the second alignment block (47) by the fixing bolt (38), then it can be pulled out to complete the disassembly of the filtering mechanism (4). Then, disassemble the bottom filter screen (45) and the top filter screen (43) to replace the activated carbon.

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