Pharmaceutical tablet waste processing device

Abstract

The present invention relates to the field of wastewater treatment technology, and in particular to a pharmaceutical tablet waste treatment device, comprising a wastewater treatment tank, an upper cover, a base, and a support plate: the wastewater treatment tank is filled with hydrogen peroxide reagent and magnetic catalyst particles, an auger is installed on the outer side of the rotating shaft, and the auger and the through hole cooperate with each other; the upper end of the outer side of the fixed seat is provided with multiple annular protrusions, and the lower end of the fixed seat is provided with multiple second slots distributed in an annular array, and the second slots and the through hole are interconnected. The present invention provides a corresponding catalyst particle circulation channel in the middle of the wastewater treatment tank. When the catalyst particles enter the second slots from the pad, they are transported by the auger to the upper end of the fixed seat, and then roll down the inclined surface of the fixed seat, which can effectively strip some macromolecules and simultaneously achieve the activity of the catalyst particles in the wastewater, so that the catalyst particles have an adsorption effect in the wastewater.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a device for treating pharmaceutical tablet waste. Background Art

[0002] Waste is generated during the pharmaceutical production process, mainly including wastewater. Wastewater mainly comes from biopharmaceuticals, chemical synthesis pharmaceuticals, traditional Chinese medicine pharmaceuticals and mixed preparation pharmaceuticals. Wastewater contains high concentrations of organic matter, difficult-to-degrade substances, residual active pharmaceutical ingredients and heavy metal catalysts, etc. It also contains protein macromolecules.

[0003] There is a publication number CN114195294A, which is named a pharmaceutical wastewater treatment device, including a tank body, a fixedly connected motor is provided at the bottom of the tank body, and the tank body is provided with a fixedly connected water collection annular seat outside the motor for collecting part of the wastewater. The output end of the motor is fixedly connected to the driving shaft, the driving shaft is fixedly connected to the rotating seat, and the upper end of the driving shaft is fixedly connected to the rotating shaft. The tank body is provided with a fixedly connected partition above the water collection annular seat, a feed port is opened above the tank body, a feeding sleeve is provided in the rotating seat, the rotating shaft rotates in the feeding sleeve, and the tank body is provided with a fixedly connected feeding rod at the top of the feeding sleeve, which can continuously collect harmful substances in the wastewater and accelerate stirring.

[0004] The above-mentioned existing technology can continuously collect harmful precipitates in wastewater and accelerate stirring. When chemically treating wastewater, hydrogen peroxide reagent and Fe3O4@TiO2 catalyst particles are added to the wastewater to jointly oxidize antibiotics and hormone substances in the wastewater. However, these catalyst particles tend to accumulate at the bottom, and stirring cannot achieve suspension and activity of the catalyst particles in the wastewater, making it impossible for these catalyst particles to utilize the adsorption sites on the outer surface to a greater extent to adsorb harmful substances in the wastewater. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a pharmaceutical tablet waste processing device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] Design a pharmaceutical tablet waste treatment device, including a wastewater treatment box, an upper cover, a base and a support plate:

[0008] The wastewater treatment tank is filled with hydrogen peroxide reagent and magnetic catalyst particles. A fixing seat is installed at the center of the bottom of the wastewater treatment tank, and the fixing seat is tapered and narrow at the top and wide at the bottom. A through-hole is vertically opened inside the fixing seat. A motor is installed on the upper part of the base. A rotating shaft is provided on the inner side of the through hole, and the bottom of the rotating shaft is connected to the upper part of the output shaft of the motor. The top of the rotating shaft extends to the outer side of the through hole. An auger is installed on the outer side of the rotating shaft, and the auger and the through hole cooperate with each other.

[0009] The upper outer end of the fixing seat is provided with a plurality of annular protrusions, and the lower end of the fixing seat is provided with a plurality of second slots distributed in an annular array, and the second slots are interconnected with the through holes.

[0010] Preferably, the magnetic catalyst particles are specifically Fe3O4@TiO2 catalyst particles.

[0011] Preferably, after the reagent and wastewater are injected into the wastewater treatment tank, the height of the liquid level is located at the lower end of the height of the protrusion.

[0012] Preferably, an annular plate is rotatably provided at the lower end of the outer side of the fixing seat, and a plurality of first slots are provided on the annular plate. The first slots correspond to the second slots one by one, and the inner sides of the second slots are inclined.

[0013] Preferably, a pad is provided at the bottom of the wastewater treatment tank. The pad is arranged in a ring shape, and the middle part of the pad is recessed downward. The lower edge of the pad corresponds to the positions of the first slot hole and the second slot hole.

[0014] Preferably, a plurality of notches are distributed in a ring array on the upper end of the fixing seat, and an auxiliary bulk material structure is provided on the upper end of the outer side of the fixing seat.

[0015] Preferably, the auxiliary bulk material structure includes a connecting rod, a straight plate and a channel;

[0016] The channel is opened in the middle of the upper end of the straight plate along the long side direction of the straight plate, one end of the channel is in contact with the outer side of the notch, and the other end of the channel is fixed to the upper position of the rotating shaft through a connecting rod.

[0017] Preferably, a plurality of mutually parallel square holes are opened in the channel, and the square holes are arranged along the short side of the channel, and the sizes of the plurality of square holes gradually decrease in the direction approaching the fixing seat.

[0018] Preferably, the lower end of the straight plate is connected to a rotating rod, the bottom of the rotating rod is fixedly mounted with a rotating blade, and the bottom of the rotating blade extends below the wastewater liquid level.

[0019] Preferably, a sleeve is installed at the bottom of the wastewater treatment box, the inner side of the sleeve is connected with the inside of the through hole, and a drain pipe is also provided on the sleeve.

[0020] The present invention proposes a pharmaceutical tablet waste treatment device, which has the beneficial effect of providing a corresponding catalyst particle circulation channel in the middle position of the wastewater treatment box. When the catalyst particles enter the second slot from the pad, they are transported to the upper end of the fixed seat by the auger, and then roll down from the inclined surface of the fixed seat, which can effectively peel off some macromolecules and realize the activity of the catalyst particles in the wastewater, thereby achieving the adsorption effect of the catalyst particles in the wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural schematic diagram of a pharmaceutical tablet waste treatment device proposed by the present invention.

[0022] Figure 2 The figure is a structural side view of a pharmaceutical tablet waste treatment device proposed by the present invention.

[0023] Figure 3 This is a structural schematic diagram of a fixing seat of a pharmaceutical tablet waste treatment device proposed by the present invention.

[0024] Figure 4 for Figure 3 A cross-sectional view of the structure of a proposed device for treating pharmaceutical tablet waste.

[0025] Figure 5 This is a structural schematic diagram of the auxiliary bulk material structure of a pharmaceutical tablet waste processing device proposed by the present invention.

[0026] Figure 6 This is a schematic structural diagram of a straight plate of a pharmaceutical tablet waste treatment device proposed by the present invention.

[0027] In the figure: upper cover 1, wastewater treatment tank 2, pad 3, support plate 4, base 5, drain pipe 6, motor 7, annular plate 8, first slot 9, second slot 10, fixing seat 11, protrusion 12, rotating blade 13, rotating rod 14, connecting rod 15, notch 16, rotating shaft 17, straight plate 18, through hole 19, square hole 20, auger 21, sleeve 22, channel 23. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1, reference Figure 1-4A pharmaceutical tablet waste treatment device includes a wastewater treatment box 2, an upper cover 1, a base 5 and a support plate 4: a sleeve 22 is installed at the bottom of the wastewater treatment box 2, the inner side of the sleeve 22 is connected to the inside of the through hole 19, and a drain pipe 6 is also provided on the sleeve 22.

[0030] The wastewater treatment tank 2 is filled with hydrogen peroxide reagent and magnetic catalyst particles, and the magnetic catalyst particles are specifically Fe3O4@TiO2 catalyst particles. A fixed seat 11 is installed at the center of the bottom of the wastewater treatment tank 2, and the fixed seat 11 is conical and narrow at the top and wide at the bottom. A through-hole 19 is vertically opened inside the fixed seat 11. A motor 7 is installed on the upper part of the base 5. A rotating shaft 17 is provided on the inner side of the through hole 19, and the bottom of the rotating shaft 17 is connected to the upper part of the output shaft of the motor 7. The top of the rotating shaft 17 extends to the outside of the through hole 19. An auger 21 is installed on the outside of the rotating shaft 17, and the auger 21 and the through hole 19 cooperate with each other.

[0031] The upper outer end of the fixing seat 11 is provided with a plurality of annular protrusions 12. When reagents and wastewater are injected into the wastewater treatment tank 2, the liquid level is located at the lower end of the height of the protrusions 12. The lower end of the fixing seat 11 is provided with a plurality of second slots 10 distributed in an annular array, and the second slots 10 are connected to the through hole 19.

[0032] The Fe3O4@TiO2 catalyst, combined with hydrogen peroxide, can oxidize antibiotics and hormones in pharmaceutical wastewater. The Fe3O4@TiO2 catalyst also has an adsorption effect, primarily used to adsorb and remove heavy metal ions and organic pollutants from wastewater. Its adsorption performance stems from its high specific surface area and surface active sites. However, pharmaceutical wastewater may also contain large protein molecules. When protein molecules cover the active sites on the outside of the catalyst particles, the adsorption effect of the catalyst decreases. Therefore, the catalyst particles need to be in motion in the wastewater to prevent protein molecules from accumulating on the outside of the catalyst particles. At the same time, if stirring is used, these catalyst particles will still accumulate at the bottom of the container at a slow speed. However, under rapid stirring, the shear force generated by the stirring may cause separation at the interface between the Fe3O4 magnetic core and the TiO2 shell.

[0033] To this end, a conical fixing seat 11 is provided in the middle of the inner side of the wastewater treatment tank 2, and a through hole 19 vertically provided in the inner side and a second slot 10 opened at the bottom serve as the main path for the circulation of the catalyst particles. The catalyst particles in the wastewater will fall to the bottom of the wastewater treatment tank 2 under the action of gravity. Since the pad 3 is recessed toward the middle, these catalyst particles will enter from the second slot 10 at the bottom of the fixing seat 11. After the catalyst particles enter the inner side of the through hole 19, the motor 7 drives the auger 21 to operate and transport these catalyst particles upward until some of the catalyst particles leave the through hole 19 and roll down from the upper end of the fixing seat 11. The rolled catalyst particles re-enter the through hole 19 from the bottom, and the cycle repeats. The catalyst particles are in constant motion, which can fully adsorb the substances in the wastewater while preventing large molecular proteins from covering the adsorption sites on the outside of the catalyst.

[0034] When the catalyst particles roll down from the upper end of the fixing seat 11, a plurality of annular protrusions 12 are provided on the upper end of the fixing seat 11. When these catalyst particles pass through the protrusions 12, they will be bumpy. With the help of this movement trend, the protein molecules that have covered the surface of the particles are separated.

[0035] Example 2, reference Figure 3 The difference between this embodiment and embodiment 1 is that an annular plate 8 is rotatably provided at the lower end of the outer side of the fixing seat 11, and a plurality of first slot holes 9 are opened on the annular plate 8. The first slot holes 9 correspond to the second slot holes 10 one by one, and the inner sides of the second slot holes 10 are inclined. A pad 3 is provided at the bottom of the wastewater treatment tank 2. The pad 3 is annular, and the middle part of the pad 3 is recessed downward. The lower edge of the pad 3 corresponds to the positions of the first slot holes 9 and the second slot holes 10.

[0036] After the chemical treatment of the wastewater is completed, the catalyst particles need to be recovered. Traditionally, magnets are used to adsorb these particles for collection. However, the internal structure of the equipment is complex and the magnets cannot reach every area, making collection difficult.

[0037] To this end, when the chemical treatment of the wastewater is completed, the upper cover 1 is opened and the position of the annular plate 8 is adjusted using a tool, such as a rod. When the first slot hole 9 and the second slot hole 10 on the outside of the annular plate 8 do not overlap with each other, the annular plate 8 is stopped from rotating, and the motor 7 is kept running. When the catalyst particles do not roll out of the through hole 19, the motor 7 is stopped from rotating. At this time, the catalyst particles scattered between the pad 3 and the fixed seat 11 are collected by a magnet. When the collection is completed, the annular plate 8 is rotated again so that there is an overlapping part between the first slot hole 9 and the second slot hole 10, the motor 7 is started to reverse, and the valve on the drain pipe 6 is opened to discharge the treated wastewater.

[0038] Example 3, reference Figure 5-6 The difference between this embodiment and embodiment 1 and embodiment 2 is that a plurality of notches 16 are distributed in a circular array on the upper end of the fixing seat 11, and an auxiliary bulk material structure is provided on the upper end of the outer side of the fixing seat 11. The auxiliary bulk material structure includes a connecting rod 15, a straight plate 18 and a channel 23.

[0039] The channel 23 is opened in the middle of the upper end of the straight plate 18 along the long side direction of the straight plate 18. One end of the channel 23 is in contact with the outer side of the notch 16. The other end of the channel 23 is fixed to the upper position of the rotating shaft 17 by the connecting rod 15. A plurality of parallel square holes 20 are opened in the channel 23. The square holes 20 are arranged along the short side direction of the channel 23. The size of the plurality of square holes 20 gradually decreases as they approach the fixing seat 11.

[0040] The lower end of the straight plate 18 is connected to the rotating rod 14 , and the bottom of the rotating rod 14 is fixedly mounted with a rotating blade 13 , and the bottom of the rotating blade 13 extends below the wastewater level.

[0041] In order to expand the movement range of the catalyst particles in the wastewater treatment tank 2, a straight plate 18 is set at the upper end of the rotating shaft 17 through the connecting rod 15. A channel 23 for the movement of the catalyst particles is set at the upper end of the straight plate 18, and one end of the channel 23 matches the position of the slot 16. When the rotating shaft 17 indirectly drives the straight plate 18 to rotate, when the position of the channel 23 is aligned with the slot 16, some catalyst particles will be transferred from the slot 16 to the channel 23. As the straight plate 18 rotates, the catalyst particles in these channels 23 will move toward the far end of the straight plate 18. At the same time, square holes 20 of different sizes are provided in the channel 23. Therefore, the catalyst particles will gradually fall off during the process of moving toward the far end of the channel 23, and fall off at different positions to avoid clogging of the channel 23. At the same time, during the contact and collision process with the square holes 20, the protein molecules covering the outer surface of the catalyst particles can also be shaken off.

[0042] Since pharmaceutical wastewater contains a large amount of organic matter, the presence of these organic matter will cause emulsified grease to form on the surface of the wastewater. These greases are mainly of two types, one is oil-in-water and the other is oil-in-water. Regardless of the type of emulsified grease, it will gather on the surface of the wastewater. When these emulsified greases accumulate to a certain thickness on the surface of the wastewater, the fallen catalyst particles will not be able to be transferred smoothly.

[0043] To this end, it is necessary to prevent the thickness of the emulsified grease on the surface of the wastewater from being too thick. The rotating blade 13 is connected to the rotating rod 14 at the lower position near the far end of the straight plate 18. When the straight plate 18 moves, the rotating blade 13 at the lower end will move together. During the movement, the rotating blade 13 avoids contact with the grease, and then the problem of the excessive thickness of the grease on the surface is suppressed through the moving effect of the rotating blade 13, so that the catalyst particles can smoothly return to the pad 3 for circulation transfer.

[0044] The working principle of the device is:

[0045] The Fe3O4@TiO2 catalyst, combined with hydrogen peroxide, can oxidize antibiotics and hormones in pharmaceutical wastewater. The Fe3O4@TiO2 catalyst also has an adsorption effect, primarily used to adsorb and remove heavy metal ions and organic pollutants from wastewater. Its adsorption performance stems from its high specific surface area and surface active sites. However, pharmaceutical wastewater may also contain large protein molecules. When protein molecules cover the active sites on the outside of the catalyst particles, the adsorption effect of the catalyst decreases. Therefore, the catalyst particles need to be in motion in the wastewater to prevent protein molecules from accumulating on the outside of the catalyst particles. At the same time, if stirring is used, these catalyst particles will still accumulate at the bottom of the container at a slow speed. However, under rapid stirring, the shear force generated by the stirring may cause separation at the interface between the Fe3O4 magnetic core and the TiO2 shell.

[0046] To this end, a conical fixing seat 11 is provided in the middle of the inner side of the wastewater treatment tank 2, and a through hole 19 vertically provided in the inner side and a second slot 10 opened at the bottom serve as the main path for the circulation of the catalyst particles. The catalyst particles in the wastewater will fall to the bottom of the wastewater treatment tank 2 under the action of gravity. Since the pad 3 is recessed toward the middle, these catalyst particles will enter from the second slot 10 at the bottom of the fixing seat 11. After the catalyst particles enter the inner side of the through hole 19, the motor 7 drives the auger 21 to operate and transport these catalyst particles upward until some of the catalyst particles leave the through hole 19 and roll down from the upper end of the fixing seat 11. The rolled catalyst particles re-enter the through hole 19 from the bottom, and the cycle repeats. The catalyst particles are in constant motion, which can fully adsorb the substances in the wastewater while preventing large molecular proteins from covering the adsorption sites on the outside of the catalyst.

[0047] When the catalyst particles roll down from the upper end of the fixing seat 11, a plurality of annular protrusions 12 are provided on the upper end of the fixing seat 11. When these catalyst particles pass through the protrusions 12, they will be bumpy. With the help of this movement trend, the protein molecules that have covered the surface of the particles are separated.

[0048] After the chemical treatment of the wastewater is completed, the catalyst particles need to be recovered. Traditionally, magnets are used to adsorb these particles for collection. However, the internal structure of the equipment is complex and the magnets cannot reach every area, making collection difficult.

[0049] To this end, when the chemical treatment of the wastewater is completed, the upper cover 1 is opened and the position of the annular plate 8 is adjusted using a tool, such as a rod. When the first slot hole 9 and the second slot hole 10 on the outside of the annular plate 8 do not overlap with each other, the annular plate 8 is stopped from rotating, and the motor 7 is kept running. When the catalyst particles do not roll out of the through hole 19, the motor 7 is stopped from rotating. At this time, the catalyst particles scattered between the pad 3 and the fixed seat 11 are collected by a magnet. When the collection is completed, the annular plate 8 is rotated again so that there is an overlapping part between the first slot hole 9 and the second slot hole 10, the motor 7 is started to reverse, and the valve on the drain pipe 6 is opened to discharge the treated wastewater.

[0050] In order to expand the movement range of the catalyst particles in the wastewater treatment tank 2, a straight plate 18 is set at the upper end of the rotating shaft 17 through the connecting rod 15. A channel 23 for the movement of the catalyst particles is set at the upper end of the straight plate 18, and one end of the channel 23 matches the position of the slot 16. When the rotating shaft 17 indirectly drives the straight plate 18 to rotate, when the position of the channel 23 is aligned with the slot 16, some catalyst particles will be transferred from the slot 16 to the channel 23. As the straight plate 18 rotates, the catalyst particles in these channels 23 will move toward the far end of the straight plate 18. At the same time, square holes 20 of different sizes are provided in the channel 23. Therefore, the catalyst particles will gradually fall off during the process of moving toward the far end of the channel 23, and fall off at different positions to avoid clogging of the channel 23. At the same time, during the contact and collision process with the square holes 20, the protein molecules covering the outer surface of the catalyst particles can also be shaken off.

[0051] Since pharmaceutical wastewater contains a large amount of organic matter, the presence of these organic matter will cause emulsified grease to form on the surface of the wastewater. These greases are mainly of two types, one is oil-in-water and the other is oil-in-water. Regardless of the type of emulsified grease, it will gather on the surface of the wastewater. When these emulsified greases accumulate to a certain thickness on the surface of the wastewater, the fallen catalyst particles will not be able to be transferred smoothly.

[0052] To this end, it is necessary to prevent the thickness of the emulsified grease on the surface of the wastewater from being too thick. The rotating blade 13 is connected to the rotating rod 14 at the lower position near the far end of the straight plate 18. When the straight plate 18 moves, the rotating blade 13 at the lower end will move together. During the movement, the rotating blade 13 avoids contact with the grease, and then the problem of the excessive thickness of the grease on the surface is suppressed through the moving effect of the rotating blade 13, so that the catalyst particles can smoothly return to the pad 3 for circulation transfer.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A pharmaceutical tablet waste treatment device, comprising a wastewater treatment tank (2), an upper cover (1), a base (5) and a support plate (4), characterized in that: The wastewater treatment box (2) is filled with hydrogen peroxide reagent and magnetic catalyst particles to chemically treat the wastewater. A fixing seat (11) is installed at the center of the bottom of the wastewater treatment box (2), and the fixing seat (11) is tapered and narrow at the top and wide at the bottom. A through-hole (19) is vertically opened inside the fixing seat (11). A motor (7) is installed on the upper part of the base (5). A rotating shaft (17) is provided on the inner side of the through hole (19), and the bottom of the rotating shaft (17) is connected to the upper part of the output shaft of the motor (7). The top of the rotating shaft (17) extends to the outer side of the through hole (19). A screw dragon (21) is installed on the outer side of the rotating shaft (17), and the screw dragon (21) and the through hole (19) cooperate with each other. The upper end of the outer side of the fixing seat (11) is provided with a plurality of annular protrusions (12), and the lower end of the fixing seat (11) is provided with a plurality of second slots (10) distributed in an annular array, and the second slots (10) are communicated with the through holes (19); An annular plate (8) is rotatably provided at the lower end of the outer side of the fixing seat (11), and a plurality of first slot holes (9) are provided on the annular plate (8). The first slot holes (9) correspond to the second slot holes (10) one by one, and the inner sides of the second slot holes (10) are inclined.

2. The pharmaceutical tablet waste treatment device according to claim 1, characterized in that: The magnetic catalyst particles are specifically Fe3O4@TiO2 catalyst particles.

3. The pharmaceutical tablet waste treatment device according to claim 1, characterized in that: After the reagent and wastewater are injected into the wastewater treatment tank (2), the height of the liquid level is located below the height of the protrusion (12).

4. The pharmaceutical tablet waste treatment device according to claim 1, characterized in that: A pad (3) is provided at the bottom of the wastewater treatment box (2); the pad (3) is arranged in an annular shape, and the middle of the pad (3) is recessed downwards; the lower edge of the pad (3) corresponds to the positions of the first slot hole (9) and the second slot hole (10).

5. The pharmaceutical tablet waste treatment device according to claim 4, characterized in that: A plurality of notches (16) are distributed in a ring array at the upper end of the fixing seat (11), and an auxiliary bulk material structure is provided at the upper end of the outer side of the fixing seat (11).

6. The pharmaceutical tablet waste treatment device according to claim 5, characterized in that: The auxiliary bulk material structure comprises a connecting rod (15), a straight plate (18) and a channel (23); The channel (23) is opened in the middle of the upper end of the straight plate (18) along the long side direction of the straight plate (18), one end of the channel (23) is in contact with the outer side of the notch (16), and the other end of the channel (23) is fixed to the upper position of the rotating shaft (17) through the connecting rod (15).

7. The pharmaceutical tablet waste treatment device according to claim 6, characterized in that: A plurality of mutually parallel square holes (20) are provided in the channel (23), and the square holes (20) are arranged along the short side direction of the channel (23). The sizes of the plurality of square holes (20) gradually decrease in a direction approaching the fixing seat (11).

8. The pharmaceutical tablet waste treatment device according to claim 7, characterized in that: The lower end of the straight plate (18) is connected to a rotating rod (14), and a rotating blade (13) is fixedly mounted on the bottom of the rotating rod (14), and the bottom of the rotating blade (13) extends below the wastewater liquid level.

9. The pharmaceutical tablet waste treatment device according to claim 1, characterized in that: A sleeve (22) is installed at the bottom of the wastewater treatment box (2), the inner side of the sleeve (22) is connected to the inside of the through hole (19), and a drainage pipe (6) is also provided on the sleeve (22).

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