Environment-friendly pharmaceutical waste gas treatment device

Abstract

The invention relates to the technical field of waste gas treatment, and discloses an environment-friendly pharmaceutical waste gas treatment device which comprises a treatment box serving as a basic component of the whole equipment and used for assembling and bearing all treatment mechanisms and subordinate lower structural parts, and the interior of the treatment box is sequentially divided into a storage cavity, a filtering cavity and a diluting cavity through two partition plates; and the monitoring ventilation mechanism is arranged on one side of the treatment box and is used for connecting the equipment with a workshop of a pharmaceutical factory. By adding and arranging the monitoring ventilation mechanism, the concentration of pharmaceutical waste gas in the pharmaceutical workshop can be monitored in real time, the mechanism can effectively monitor the change of the concentration of the pharmaceutical waste gas, the operation frequency and state of the exhaust fan can be intelligently adjusted according to monitoring data, accurate frequency conversion control is carried out, and the working efficiency is improved. Therefore, the safety and efficiency of pharmaceutical waste gas emission are remarkably improved, the requirement for manual intervention is reduced, the potential pharmaceutical waste gas accumulation problem can be responded in time, and the safety risk of pharmaceutical factory operation is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, in particular to an environmentally friendly pharmaceutical waste gas treatment device. Background Art

[0002] Pharmaceutical waste gas refers to a mixture of various harmful gases and volatile organic compounds generated in the pharmaceutical production process. Pharmaceutical waste gas mainly includes volatile organic compounds, acidic waste gas, alkaline waste gas, dust-containing waste gas, etc. There are many types of waste gas, such as ethanol, acetone, dichloromethane, etc., which are produced by volatilization during drug synthesis, extraction, and refining. These solvent waste gases not only have irritating odors, but may also cause harm to human health and the environment. At the same time, they will also produce compounds such as benzene, esters, aldehydes, etc. These waste gases have complex components and are highly toxic.

[0003] Since the composition of pharmaceutical waste gas is complex and fluctuates greatly, in the current pharmaceutical process, direct exhaust by ordinary ventilation equipment can easily cause excessive concentration of local pharmaceutical waste gas, which may exceed the processing capacity of the docking equipment, making the treated waste gas unable to meet the emission standards, posing certain safety hazards to the surrounding environment workers and production equipment.

[0004] Therefore, those skilled in the art have proposed an environmentally friendly pharmaceutical waste gas treatment device to solve the above-mentioned technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides an environmentally friendly pharmaceutical waste gas treatment device, which solves the problem that direct pumping and discharge of ventilation equipment in the current pharmaceutical process easily causes excessive concentration of local pharmaceutical waste gas.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an environmentally friendly pharmaceutical waste gas treatment device, comprising:

[0007] The processing box, as the basic component of the whole equipment, is used to assemble and carry each processing mechanism and its subordinate structural parts. Its interior is divided into three chambers, namely, a storage chamber, a filtration chamber and a dilution chamber, in sequence by two partition plates;

[0008] A monitoring ventilation mechanism is arranged on one side of the treatment box, and is used to connect the device with the workshop of the pharmaceutical factory, and monitor and pump out the pharmaceutical waste gas in the workshop for treatment;

[0009] A floating dust purification mechanism is arranged in the storage chamber and the filter chamber of the processing box, and is used to perform multiple purification treatments on the floating dust in the pharmaceutical waste gas discharged into the processing box by the monitoring ventilation mechanism;

[0010] The conversion and dilution mechanism is arranged at the rear side of the treatment box, and is used to absorb the air in the external environment and convert it into nitrogen and discharge it into the dilution chamber, so as to dilute the pharmaceutical waste gas after being treated by the floating dust purification mechanism;

[0011] The mixed flow discharge mechanism is arranged in the dilution chamber, and is used to mix the pharmaceutical waste gas entering the dilution chamber with the nitrogen discharged by the conversion and dilution mechanism, and discharge it after diluting it to a safe level.

[0012] Preferably, the monitoring ventilation mechanism includes an exhaust fan, which is arranged in the middle of one side of the processing box, the exhaust port of the exhaust fan is connected with the interior of the processing box, the air inlet of the exhaust fan is provided with a main ventilation duct, a plurality of auxiliary ventilation ducts are arranged at the bottom of the main ventilation duct, and the bottom ends of the plurality of auxiliary ventilation ducts respectively extend to corresponding workshops, and the interiors of the auxiliary ventilation ducts are connected with the interior of the main ventilation duct.

[0013] Preferably, the monitoring ventilation mechanism also includes a concentration monitor 1, and each of the secondary ventilation ducts is provided with a concentration monitor 1. A frequency converter is provided near the edge on the other side of the middle of the top of the processing box for adjusting the operating frequency of the exhaust fan. A receiving controller is provided near the edge on one side of the middle of the top of the processing box for receiving information transmitted from each concentration monitor 1, analyzing the information, and then generating a control signal to transmit to the frequency converter.

[0014] Preferably, the floating dust purification mechanism includes a baffle plate, which is fixedly connected to the middle part of the bottom end of the storage cavity, and the baffle plate and the inner wall of the treatment box form a liquid storage cavity, and water is arranged inside the liquid storage cavity. A diverter hood is fixedly connected to the middle and upper part of the inner wall of the treatment box close to the exhaust fan, and a plurality of guide pipes are equidistantly arranged at the bottom of the diverter hood, and a diverter cavity is arranged inside the diverter hood, and the diverter cavity is connected to the interior of the guide pipe, and a plurality of openings are equidistantly provided at the middle and lower part of the outer wall of the guide pipe.

[0015] Preferably, the floating dust purification mechanism also includes a diverter seat, a diverter seat is provided on one side of the middle part of the top of the processing box, atomizing sprays are provided on both sides of the middle part of the top of the diverter seat, and the atomizing sprays are connected with the interior of the diverter seat, a circulating pump is provided in the lower middle part of the rear side of the processing box, the liquid inlet of the circulating pump is connected with the bottom of the storage chamber through a connecting pipe, and the liquid outlet of the circulating pump is connected with the interior of the diverter seat through a connecting pipe.

[0016] Preferably, the floating dust purification mechanism includes a drainage fan, which is arranged in the middle and upper part of the partition plate on the left side, a plurality of mounting frames are arranged equidistantly in the filter chamber, a filter cotton plate is arranged in the inner middle part of each mounting frame, and an electromagnetic control valve 2 is arranged in the middle and upper part of the partition plate on the right side.

[0017] Preferably, the conversion and dilution mechanism includes an installation box, an installation box is provided on one side of the middle part of the rear end of the processing box, a dust filter cover is provided in the middle part of the top of the installation box, one side of the dust filter cover is connected with one end of the air compressor through a connecting pipe, one end of the air compressor is connected with one end of filter one through a connecting pipe, the other end of filter one is connected with one end of a corresponding dryer through a connecting pipe, the other end of the dryer is connected with one end of filter two through a connecting pipe, and the other end of filter two is connected with one end of a corresponding PSA adsorber through a connecting pipe.

[0018] Preferably, the conversion dilution mechanism also includes filter three, the other end of the PSA adsorber is connected to one end of filter three through a connecting pipe, the other end of the filter three is connected to one end of a nitrogen storage tank through a connecting pipe, and one end of the nitrogen storage tank is connected to the interior of the dilution chamber through a connecting pipe.

[0019] Preferably, the mixed flow discharge mechanism includes a driving rod, and the driving rods are rotatably connected to both sides of the middle of the dilution chamber, and a mounting sleeve is provided in the middle of the outer wall of the driving rod, and a plurality of arc-shaped blades are arranged in a circular array on the outer wall of the mounting sleeve. Two driving motors are equidistantly arranged on one side of the middle of the top end of the processing box, and the output end of the driving motor passes through the processing box and is connected to the middle of one end of the driving rod.

[0020] Preferably, the mixed flow discharge mechanism also includes a discharge pipe, and the discharge pipe is arranged at the middle and upper part of the side of the treatment box away from the exhaust fan, and the interior of the discharge pipe is connected with the interior of the dilution chamber, an electromagnetic control valve 1 is arranged on the discharge pipe, and a concentration monitor 2 is arranged at the middle and upper part of one side of the inner wall of the dilution chamber.

[0021] Working principle: When ventilating and discharging pharmaceutical waste gas in the pharmaceutical factory workshop, first monitor the start of the ventilation mechanism. Since the auxiliary ventilation pipes are distributed in various workshops of the pharmaceutical factory, when the exhaust fan on the treatment box is started, the exhaust fan is pumped through the main ventilation pipe to the auxiliary ventilation pipes distributed in various workshops. The air and pharmaceutical waste gas retained in each workshop enter the main ventilation pipe through the auxiliary ventilation pipe, and then enter the treatment box through the exhaust fan. In this way, the pharmaceutical waste gas in each workshop of the pharmaceutical factory is ventilated. At the same time, the concentration monitor on the auxiliary ventilation pipe also monitors the concentration of pharmaceutical waste gas in the air in various workshops of the pharmaceutical factory in real time. The data collected by the monitoring is also transmitted to the receiving controller. The receiving controller analyzes the information data transmitted by the auxiliary ventilation pipes at various positions, and then generates corresponding control signals according to the analysis results and transmits them to the frequency converter. The frequency converter then controls the operating frequency and operating status of the exhaust fan on the processing box. Then the floating dust purification mechanism is started, and the mixed gas of the air delivered by the exhaust fan and the pharmaceutical waste gas enters the diversion chamber in the diversion hood, and then the mixed gas entering the diversion chamber is diverted into each guide pipe, and is discharged into the water in the liquid storage chamber through the liquid storage chamber on the guide pipe, and then passes through the liquid storage chamber. The water absorbs the mixed gas and the floating dust, so that it dissolves in the water in the liquid storage chamber. After that, the mixed gas after the preliminary purification treatment is discharged from the water in the liquid storage chamber, and then the circulation pump on the treatment box is started. When the circulation pump is started, the water in the storage chamber is pumped through the connecting pipe and injected into the diverter seat on the treatment box. Then the water entering the diverter seat is diverted to two atomizing spray rows and atomized and sprayed out through the atomizing spray row. Therefore, the atomized water generated by the atomizing spray row adsorbs the floating dust in the mixed gas after the preliminary purification treatment at the front end again, so that the contact mass between the floating dust in the mixed gas and the water mist particles is increased, and then falls into the storage chamber for collection. The air after the secondary purification treatment is completed, and then the air after the secondary purification treatment is pumped by the drainage fan on the left partition plate, so that it enters the filter chamber in the treatment box. Then, when the gas after the secondary purification treatment enters the filter chamber, it is pushed by the subsequent gas, and the gas in the filter chamber is finally filtered layer by layer through the filter cotton plate on the mounting frame, so that the floating dust remaining in the gas is finally adsorbed and purified by multiple filter cotton plates, so as to complete the triple purification treatment of the mixed gas. After that, the electromagnetic control valve 2 on the right partition plate is started, and the pharmaceutical waste gas mixed gas after the final purification treatment enters the dilution chamber;At the same time, the conversion and dilution mechanism is started. At this time, the air in the external environment passes through the dust cover on the installation box to the inside, and the dust impurities in the air are filtered and removed, so as to obtain relatively pure air. Then, the air after the dust cover is processed is compressed by the air compressor, and then the compressed air enters the filter one through the connecting pipe for preliminary filtration. Then, the air after the filtration treatment of the filter one enters the corresponding dryer through the connecting pipe for drying treatment, so as to remove the moisture in the air and improve the dryness of the gas. Then, the air after the drying treatment of the dryer enters the filter two through the connecting pipe for the second filtration treatment. Then, the air after the second filtration treatment enters the corresponding PSA adsorber through the connecting pipe, and the adsorbent in the PSA adsorber is used to specifically adsorb the oxygen molecules in the air, so that the oxygen molecules in the air are reduced, and the nitrogen in the air is also enriched at the same time. After the PSA adsorber generates nitrogen through adsorption, the nitrogen generated enters the filter three through the connecting pipe, and the nitrogen generated by the filter three is finally filtered. Then, the nitrogen after the final filtration treatment passes through The connecting pipe enters the nitrogen storage tank for storage, and then the nitrogen in the nitrogen storage tank enters the dilution chamber in the treatment box through the connecting pipe, so that the pharmaceutical waste gas mixed gas in the dilution chamber is mixed with the nitrogen, so as to achieve the effect of reducing the concentration of pharmaceutical waste gas in the dilution chamber, thereby completing the conversion of external gas and the dilution treatment of pharmaceutical waste gas; at the same time, the mixing and discharging mechanism is started, and first the driving motor on the treatment box is started. When the driving motor is started, the rotating shaft on it drives the driving rod in the dilution chamber to rotate, and the driving rod rotates while driving the mounting sleeve on it to rotate synchronously, and the mounting sleeve is driven by the driving shaft When the air is moving, the arc blade on it is driven to rotate. When the arc blade rotates, the pharmaceutical waste gas mixture in the dilution chamber is evenly mixed with nitrogen, thereby reducing the concentration of pharmaceutical waste gas in the gas in the dilution chamber. After the gas in the dilution chamber is mixed, the concentration of pharmaceutical waste gas in the dilution chamber is monitored by the concentration monitor 2. If the mixed gas in the dilution chamber reaches the safe discharge standard, the electromagnetic control valve 1 on the discharge pipe is started, and the gas in the dilution chamber after the dilution and mixing treatment is discharged to the external environment through the discharge pipe, thereby completing the mixing and discharge treatment of pharmaceutical waste gas. ;

[0022] The present invention provides an environmentally friendly pharmaceutical waste gas treatment device, which has the following beneficial effects:

[0023] 1. The present invention realizes real-time monitoring of the concentration of pharmaceutical waste gas in the pharmaceutical workshop by adding and setting up a monitoring ventilation mechanism. The mechanism can not only effectively monitor the changes in the concentration of pharmaceutical waste gas, but also intelligently adjust the operating frequency and state of the exhaust fan according to the monitoring data, and perform precise frequency conversion control, thereby significantly improving the safety and efficiency of pharmaceutical waste gas emissions, reducing the need for manual intervention, and being able to respond in a timely manner to potential pharmaceutical waste gas accumulation problems, thereby reducing the safety risks of pharmaceutical factory operations. In addition, the dynamic adjustment function of the mechanism can also optimize energy use, improve the overall operating efficiency of the exhaust system, and achieve the dual benefits of energy saving and environmental protection.

[0024] 2. The present invention significantly improves the safety and comfort of the pharmaceutical workshop environment by adding and setting up a floating dust purification mechanism. The mechanism performs multiple filtering and purification treatments on the discharged floating dust and the pharmaceutical waste gas mixed gas, ensuring the effective removal of floating dust in the mixed gas. After multiple layers of filtration, the mechanism can significantly reduce the concentration of harmful substances in the air, improve air quality, and reduce health problems caused by workers breathing polluted gases. In addition, the multiple purification treatments in the mixed gas also lay the foundation for the subsequent treatment of pharmaceutical waste gas. The secondary treatment of the gas can avoid the impact of impurities such as floating dust contained in the mixed gas during the treatment process on the overall equipment, avoid damage to the overall equipment due to dust accumulation, and extend the service life of the overall equipment.

[0025] 3. The present invention adds and sets a conversion and dilution mechanism, which can continuously convert the air in the external environment into nitrogen through a series of treatments when in use, and dilute the treated pharmaceutical waste gas with nitrogen. Moreover, by continuously converting the air in the external environment into nitrogen, the overall equipment's demand for external air source supply can also be reduced, thereby ensuring the continuous operation of the overall equipment.

[0026] 4. The present invention adds and sets a mixed flow emission mechanism. When the mechanism is used, on the one hand, the pharmaceutical waste gas mixture can be stirred with nitrogen to make them fully mixed, thereby reducing the concentration of the pharmaceutical waste gas and improving the safety of pharmaceutical waste gas treatment. On the other hand, the gas after the mixing treatment can be monitored and automatically discharged after it reaches the safe emission standard, thereby avoiding direct emission to cause environmental pollution and impact on surrounding workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the rear structure of the present invention;

[0029] Figure 3It is a schematic diagram of the left side structure of the internal section of the processing box of the present invention;

[0030] Figure 4 It is a schematic diagram of the right side structure of the internal section of the processing box of the present invention;

[0031] Figure 5 It is a schematic diagram of the local structure of the splitter cover of the present invention;

[0032] Figure 6 It is a schematic diagram of the local structure of the installation frame of the present invention;

[0033] Figure 7 It is a schematic diagram of the internal structure of the installation box of the present invention;

[0034] Figure 8 It is a schematic diagram of the local structure of the driving rod of the present invention.

[0035] Among them, 1. treatment box; 2. auxiliary ventilation pipe; 3. concentration monitor 1; 4. main ventilation pipe; 5. exhaust fan; 6. receiving controller; 7. frequency converter; 8. diverter seat; 9. drive motor; 10. electromagnetic control valve 1; 11. discharge pipe; 12. installation box; 13. dust filter cover; 14. circulation pump; 15. diverter cover; 16. guide pipe; 17. liquid storage chamber; 18. baffle plate; 19. storage chamber; 20. partition plate; 21. filter cavity; 22, dilution cavity; 23, concentration monitor 2; 24, curved blade; 25, drainage fan; 26, atomizing spray; 27, opening; 28, installation frame; 29, electromagnetic control valve 2; 30, diversion cavity; 31, filter cotton plate; 32, air compressor; 33, filter 1; 34, dryer; 35, filter 2; 36, PSA adsorber; 37, filter 3; 38, nitrogen storage tank; 39, drive rod; 40, installation sleeve. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings of the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] Please see attached Figure 1 - Attachment Figure 4 The embodiment of the present invention provides an environmentally friendly pharmaceutical waste gas treatment device, including a treatment box 1, which is used as the basic component of the overall equipment to assemble and carry various treatment mechanisms and their subordinate structural parts, and the interior of the treatment box is divided into three chambers, a storage chamber 19, a filtering chamber 21 and a dilution chamber 22, in sequence by two partition plates 20;

[0038] A monitoring ventilation mechanism is arranged on one side of the processing box 1, and is used to connect the device with the workshop of the pharmaceutical factory, and monitor and pump out the pharmaceutical waste gas in the workshop for treatment;

[0039] The monitoring ventilation mechanism includes an exhaust fan 5, which is arranged in the middle of one side of the processing box 1. The exhaust port of the exhaust fan 5 is connected with the interior of the processing box 1, and a main ventilation duct 4 is arranged on the air inlet of the exhaust fan 5. A plurality of auxiliary ventilation ducts 2 are arranged at the bottom of the main ventilation duct 4, and the bottom ends of the plurality of auxiliary ventilation ducts 2 extend to corresponding workshops respectively, and the interiors of the auxiliary ventilation ducts 2 are connected with the interior of the main ventilation duct 4.

[0040] When the monitoring ventilation mechanism is started, since the auxiliary ventilation ducts 2 are distributed in various workshops of the pharmaceutical factory, when the exhaust fan 5 on the processing box 1 is started, the exhaust fan 5 is pumped to the auxiliary ventilation ducts 2 distributed in various workshops through the main ventilation ducts 4, and the air retained in each workshop and the pharmaceutical waste gas enter the main ventilation duct 4 through the auxiliary ventilation duct 2, and then enter the processing box 1 through the transportation of the exhaust fan 5, thereby completing the ventilation treatment of the pharmaceutical waste gas in various workshops of the pharmaceutical factory.

[0041] The monitoring ventilation mechanism also includes a concentration monitor 3, and each of the auxiliary ventilation pipes 2 is provided with a concentration monitor 3. A frequency converter 7 is provided near the edge on the other side of the middle of the top of the processing box 1 for adjusting the operating frequency of the exhaust fan 5. A receiving controller 6 is provided near the edge on one side of the middle of the top of the processing box 1 for receiving the information transmitted by each concentration monitor 3, analyzing the information, and generating a control signal to transmit to the frequency converter 7.

[0042] At the same time, the concentration monitor 3 on the auxiliary ventilation duct 2 also synchronously monitors the concentration of pharmaceutical waste gas in the air in the workshops at various locations of the pharmaceutical factory in real time, and also transmits the data collected by the monitoring to the receiving controller 6. The receiving controller 6 analyzes the information data transmitted by the auxiliary ventilation duct 2 at various locations when receiving the information data, and then generates a corresponding control signal based on the analysis result and transmits it to the frequency conversion regulator 7, and then the frequency conversion regulator 7 controls the operating frequency and operating status of the exhaust fan 5 on the processing box 1.

[0043] Please see attached Figure 5 - Attachment Figure 6 , a floating dust purification mechanism, which is arranged in the storage chamber 19 and the filter chamber 21 of the processing box 1, and is used to perform multiple purification treatments on the floating dust in the pharmaceutical waste gas discharged into the processing box 1 by the monitoring ventilation mechanism;

[0044] The floating dust purification mechanism includes a baffle plate 18, which is fixedly connected to the middle part of the bottom end of the storage chamber 19. The baffle plate 18 and the inner wall of the treatment box 1 form a liquid storage chamber 17, and water is arranged inside the liquid storage chamber 17. A diverter hood 15 is fixedly connected to the middle and upper part of the inner wall of the treatment box 1 close to the exhaust fan 5. A plurality of guide pipes 16 are equidistantly arranged at the bottom of the diverter hood 15, and a diverter chamber 30 is arranged inside the diverter hood 15, and the diverter chambers 30 are connected to the inside of the guide pipe 16, and a plurality of openings 27 are equidistantly opened in the middle and lower part of the outer wall of the guide pipe 16.

[0045] When the floating dust purification mechanism is started, the mixed gas of air delivered by the exhaust fan 5 and the pharmaceutical waste gas enters the diversion chamber 30 in the diversion hood 15, and then the mixed gas entering the diversion chamber 30 is diverted into each guide pipe 16, and is discharged into the water in the liquid storage chamber 17 through the liquid storage chamber 17 on the guide pipe 16, and then the mixed gas and the dust in the mixed gas are adsorbed by the water in the liquid storage chamber 17, so that it is dissolved in the water in the liquid storage chamber 17, and then the mixed gas after preliminary purification is discharged from the water in the liquid storage chamber 17.

[0046] The floating dust purification mechanism also includes a diverter seat 8, which is arranged on one side of the middle part of the top of the processing box 1, and atomizing spray rows 26 are arranged on both sides of the middle part of the top of the diverter seat 8, and the atomizing spray rows 26 are connected with the interior of the diverter seat 8, and a circulating pump 14 is arranged in the lower middle part of the rear side of the processing box 1, and the liquid inlet of the circulating pump 14 is connected with the bottom of the storage chamber 19 through a connecting pipe, and the liquid outlet of the circulating pump 14 is connected with the interior of the diverter seat 8 through a connecting pipe.

[0047] Then the circulation pump 14 on the treatment box 1 is started. When the circulation pump 14 is started, the water in the storage chamber 19 is pumped through the connecting pipe and injected into the diverter seat 8 on the treatment box 1. Then the water entering the diverter seat 8 is diverted to the two atomizing spray rows 26 and atomized and sprayed out through the atomizing spray rows 26. The atomized water generated by the atomizing spray rows 26 adsorbs the floating dust in the mixed gas after the preliminary purification treatment at the front end again, thereby increasing the contact mass between the floating dust in the mixed gas and the water mist particles, and then falls into the storage chamber 19 for collection and treatment, thereby completing the secondary purification treatment of the mixed gas.

[0048] The floating dust purification mechanism includes a drainage fan 25, which is arranged in the middle and upper part of the left partition plate 20, and multiple mounting frames 28 are arranged at equal intervals in the filter chamber 21. Filter cotton plates 31 are arranged in the inner middle part of the mounting frames 28, and an electromagnetic control valve 29 is arranged in the middle and upper part of the right partition plate 20.

[0049] After that, the air that has completed the secondary purification treatment at the front end is drawn by the drainage fan 25 on the left partition plate 20, so that it enters the filter chamber 21 in the treatment box 1, and then when the gas after the secondary purification treatment enters the filter chamber 21, it is pushed by the subsequent gas, and the gas in the filter chamber 21 is finally filtered layer by layer through the filter cotton plate 31 on the mounting frame 28, so that the floating dust remaining in the gas is finally adsorbed and purified by the multiple filter cotton plates 31, thereby completing the triple purification treatment of the mixed gas, and then the electromagnetic control valve 29 on the right partition plate 20 is started, and the pharmaceutical waste gas mixed gas after the final purification treatment enters the dilution chamber 22.

[0050] Please see attached Figure 7 , a conversion and dilution mechanism, which is arranged at the rear side of the treatment box 1, is used to absorb the air in the external environment and convert it into nitrogen and discharge it into the dilution chamber 22, so as to dilute the pharmaceutical waste gas after being treated by the floating dust purification mechanism;

[0051] The conversion and dilution mechanism includes an installation box 12. The installation box 12 is arranged on one side in the middle of the rear end of the processing box 1. A dust filter cover 13 is arranged in the middle of the top of the installation box 12. One side of the dust filter cover 13 is connected with one end of the air compressor 32 through a connecting pipe. One end of the air compressor 32 is connected with one end of a filter 1 33 through a connecting pipe. The other end of the filter 1 33 is connected with one end of a corresponding dryer 34 through a connecting pipe. The other end of the dryer 34 is connected with one end of a filter 2 35 through a connecting pipe. The other end of the filter 2 35 is connected with one end of a corresponding PSA adsorber 36 through a connecting pipe.

[0052] When the conversion and dilution mechanism is started, the air in the external environment passes through the dust filter cover 13 on the installation box 12 to the inside, and the dust impurities in the air are filtered and removed, so as to obtain relatively pure air. Then, the air after being processed by the dust filter cover 13 is compressed by the air compressor 32, and then the compressed air enters the filter 1 33 through the connecting pipe for preliminary filtration, and then the air after filtering by the filter 1 33 enters the corresponding dryer 34 through the connecting pipe for drying, so as to remove moisture in the air and improve the dryness of the gas. Then, the air after drying by the dryer 34 enters the filter 2 35 through the connecting pipe for the second filtering.

[0053] The conversion and dilution mechanism also includes a filter three 37. The other end of the PSA adsorber 36 is connected to one end of the filter three 37 through a connecting pipe. The other end of the filter three 37 is connected to one end of a nitrogen storage tank 38 through a connecting pipe. One end of the nitrogen storage tank 38 is connected to the interior of the dilution chamber 22 through a connecting pipe.

[0054] After that, the air after the second filtration treatment enters the corresponding PSA adsorber 36 through the connecting pipe, and the adsorbent in the PSA adsorber 36 specifically adsorbs the oxygen molecules in the air, thereby reducing the oxygen molecules in the air and simultaneously enriching the nitrogen in the air. After the PSA adsorber 36 generates nitrogen through adsorption, the nitrogen generated by it enters the filter three 37 through the connecting pipe, and the nitrogen generated by it is finally filtered by the filter three 37. Then, the nitrogen after the final filtration treatment enters the nitrogen storage tank 38 through the connecting pipe for storage. Then, the nitrogen in the nitrogen storage tank 38 enters the dilution chamber 22 in the processing box 1 through the connecting pipe, so that the pharmaceutical waste gas mixed gas in the dilution chamber 22 is mixed with the nitrogen, so as to achieve the effect of reducing the concentration of pharmaceutical waste gas in the dilution chamber 22, thereby completing the conversion of external gas and the dilution treatment of pharmaceutical waste gas.

[0055] Please see attached Figure 8 The mixed flow discharge mechanism is arranged in the dilution chamber 22, and is used to mix the pharmaceutical waste gas entering the dilution chamber 22 with the nitrogen discharged by the conversion and dilution mechanism, and discharge it after diluting it to a safe level.

[0056] The mixed flow discharge mechanism includes a driving rod 39, and the driving rods 39 are rotatably connected on both sides of the middle of the dilution chamber 22, and a mounting sleeve 40 is provided in the middle of the outer wall of the driving rod 39. A plurality of arc-shaped blades 24 are arranged in a circular array on the outer wall of the mounting sleeve 40. Two driving motors 9 are equidistantly arranged on one side of the middle of the top of the processing box 1, and the output end of the driving motor 9 passes through the processing box 1 and is connected to the middle of one end of the driving rod 39.

[0057] When the mixing and discharging mechanism is started, the driving motor 9 on the processing box 1 is started first. When the driving motor 9 is started, the rotating shaft thereon drives the driving rod 39 in the dilution chamber 22 to rotate. While the driving rod 39 rotates, it drives the mounting sleeve 40 thereon to rotate synchronously. While the mounting sleeve 40 is driven to rotate, it drives the arc-shaped blade plate 24 thereon to rotate. While the arc-shaped blade plate 24 rotates, it evenly mixes the pharmaceutical waste gas mixture in the dilution chamber 22 with the nitrogen, thereby reducing the concentration of the pharmaceutical waste gas in the gas in the dilution chamber 22.

[0058] The mixed flow discharge mechanism also includes a discharge pipe 11. The discharge pipe 11 is arranged at the middle and upper part of the side of the processing box 1 away from the exhaust fan 5, and the interior of the discharge pipe 11 is connected with the interior of the dilution chamber 22. An electromagnetic control valve 10 is arranged on the discharge pipe 11, and a concentration monitor 23 is arranged at the middle and upper part of one side of the inner wall of the dilution chamber 22.

[0059] After the gases in the dilution chamber 22 are mixed, the concentration of the pharmaceutical waste gas in the dilution chamber 22 is monitored by the concentration monitor 23. If the mixed gas in the dilution chamber 22 reaches the safe emission standard, the electromagnetic control valve 10 on the discharge pipe 11 is started, and the gas after the diluted and mixed treatment in the dilution chamber 22 is discharged into the external environment through the discharge pipe 11, thereby completing the mixing and emission treatment of the pharmaceutical waste gas.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly pharmaceutical waste gas treatment device, characterized in that: include: The processing box (1) is a basic component of the whole device, used for assembling and carrying various processing mechanisms and their subordinate structural components, and its interior is divided into three chambers, namely, a storage chamber (19), a filtering chamber (21) and a dilution chamber (22) in sequence by two partition plates (20); A monitoring ventilation mechanism is arranged on one side of the processing box (1) and is used to connect the device to a workshop of a pharmaceutical factory and monitor and pump out pharmaceutical waste gas in the workshop for treatment; A floating dust purification mechanism is arranged in the storage chamber (19) and the filter chamber (21) of the processing box (1) and is used to perform multiple purification treatments on the floating dust in the pharmaceutical waste gas discharged into the processing box (1) by the monitoring ventilation mechanism; A conversion and dilution mechanism, which is arranged at the rear side of the treatment box (1) and is used to absorb air in the external environment and convert it into nitrogen and discharge it into the dilution chamber (22), thereby diluting the pharmaceutical waste gas after being treated by the floating dust purification mechanism; The mixed flow discharge mechanism is arranged in the dilution chamber (22) and is used to mix the pharmaceutical waste gas entering the dilution chamber (22) with the nitrogen discharged by the conversion and dilution mechanism, and discharge it after diluting it to a safe level.

2. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The monitoring ventilation mechanism comprises an exhaust fan (5), which is arranged in the middle of one side of the processing box (1), and the exhaust port of the exhaust fan (5) is connected to the interior of the processing box (1), and a main ventilation pipe (4) is arranged on the air inlet of the exhaust fan (5), and a plurality of auxiliary ventilation pipes (2) are arranged at the bottom of the main ventilation pipe (4), and the bottom ends of the plurality of auxiliary ventilation pipes (2) respectively extend to corresponding workshops, and the interiors of the auxiliary ventilation pipes (2) are all connected to the interior of the main ventilation pipe (4).

3. The environmentally friendly pharmaceutical waste gas treatment device according to claim 2 is characterized in that: The monitoring ventilation mechanism also includes a concentration monitor (3), each of which is provided on the auxiliary ventilation pipe (2). A frequency converter (7) is provided near the edge on the other side of the middle of the top of the processing box (1) for adjusting the operating frequency of the exhaust fan (5). A receiving controller (6) is provided near the edge on one side of the middle of the top of the processing box (1) for receiving information transmitted by each concentration monitor (3), analyzing the information, and generating a control signal for transmitting to the frequency converter (7).

4. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The floating dust purification mechanism comprises a baffle plate (18), the baffle plate (18) is fixedly connected to the middle part of the bottom end of the storage chamber (19), the baffle plate (18) and the inner wall of the treatment box (1) form a liquid storage chamber (17), water is arranged inside the liquid storage chamber (17), a diverter cover (15) is fixedly connected to the middle and upper part of the inner wall of the treatment box (1) close to the exhaust fan (5), a plurality of guide pipes (16) are equidistantly arranged at the bottom of the diverter cover (15), a diverter chamber (30) is arranged inside the diverter cover (15), and the diverter chamber (30) is communicated with the inside of the guide pipe (16), and a plurality of openings (27) are equidistantly opened in the middle and lower part of the outer wall of the guide pipe (16).

5. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The floating dust purification mechanism also includes a diverter seat (8), a diverter seat (8) is arranged on one side of the middle part of the top of the processing box (1), atomizing spray rows (26) are arranged on both sides of the middle part of the top of the diverter seat (8), and the atomizing spray rows (26) are connected to the inside of the diverter seat (8), a circulating pump (14) is arranged at the lower middle part of the rear side of the processing box (1), the liquid inlet of the circulating pump (14) is connected to the bottom of the storage chamber (19) through a connecting pipe, and the liquid outlet of the circulating pump (14) is connected to the inside of the diverter seat (8) through a connecting pipe.

6. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The floating dust purification mechanism comprises a drainage fan (25), the drainage fan (25) is arranged in the middle and upper part of the left partition plate (20), a plurality of mounting frames (28) are arranged at equal intervals in the filter cavity (21), a filter cotton plate (31) is arranged in the inner middle part of each mounting frame (28), and a solenoid control valve 2 (29) is arranged in the middle and upper part of the right partition plate (20).

7. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The conversion and dilution mechanism comprises an installation box (12), wherein the installation box (12) is arranged on one side of the middle part of the rear end of the treatment box (1), and a dust filter cover (13) is arranged on the middle part of the top end of the installation box (12), one side of the dust filter cover (13) is connected to one end of an air compressor (32) through a connecting pipe, one end of the air compressor (32) is connected to one end of a filter one (33) through a connecting pipe, the other end of the filter one (33) is connected to one end of a corresponding dryer (34) through a connecting pipe, the other end of the dryer (34) is connected to one end of a filter two (35) through a connecting pipe, and the other end of the filter two (35) is connected to one end of a corresponding PSA adsorber (36) through a connecting pipe.

8. The environmentally friendly pharmaceutical waste gas treatment device according to claim 7 is characterized in that: The conversion dilution mechanism also includes a filter three (37), the other end of the PSA adsorber (36) is connected to one end of the filter three (37) through a connecting pipe, the other end of the filter three (37) is connected to one end of a nitrogen storage tank (38) through a connecting pipe, and one end of the nitrogen storage tank (38) is connected to the interior of the dilution chamber (22) through a connecting pipe.

9. The environmentally friendly pharmaceutical waste gas treatment device according to claim 1 is characterized in that: The mixed flow discharge mechanism comprises a driving rod (39), both sides of the middle of the dilution chamber (22) are rotatably connected to the driving rod (39), the middle of the outer wall of the driving rod (39) is provided with a mounting sleeve (40), and the outer wall of the mounting sleeve (40) is provided with a plurality of arc-shaped blades (24) in a circumferential array, and two driving motors (9) are equidistantly arranged on one side of the middle of the top end of the processing box (1), and the output end of the driving motor (9) passes through the processing box (1) and is connected to the middle of one end of the driving rod (39).

10. The environmentally friendly pharmaceutical waste gas treatment device according to claim 9, characterized in that: The mixed flow discharge mechanism further comprises a discharge pipe (11), the discharge pipe (11) being arranged at the middle upper part of a side of the treatment box (1) away from the exhaust fan (5), and the interior of the discharge pipe (11) being communicated with the interior of the dilution chamber (22), the discharge pipe (11) being arranged with an electromagnetic control valve 1 (10), and the concentration monitor 2 (23) being arranged at the middle upper part of one side of the inner wall of the dilution chamber (22).

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