Environment-friendly equipment for medical intermediates

Abstract

The utility model belongs to the technical field of waste gas treatment, and relates to environment-friendly equipment for medical intermediates, which comprises a primary filter tank and a secondary filter tank, the secondary filter tank is fixedly connected to the top of the primary filter tank, and a liquid inlet mechanism for conveying filtrate into the primary filter tank is arranged on the primary filter tank. A liquid discharging mechanism is arranged on the first-stage filter box, an air inlet pipe fixedly penetrates through the bottom of the side face of the first-stage filter box, the end, stretching out of an inner cavity of the first-stage filter box, of the air inlet pipe is fixedly connected with an air cavity, a plurality of obliquely-arranged spray heads are evenly distributed on the top of the air cavity, and a plurality of obliquely-arranged fan blades are rotationally arranged above the air cavity and matched with the spray heads; an exhaust mechanism for exhausting gas in the primary filter box is arranged on the secondary filter box and is connected with a gas inlet pipe. The waste gas treatment device has the advantages that when waste gas is introduced, the fan blades can rotate to stir filtrate, so that more filtrate is in contact with the waste gas, and the waste gas treatment efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of waste gas treatment and relates to environmental protection equipment for pharmaceutical intermediates. Background Art

[0002] Pharmaceutical intermediates are some chemical raw materials or chemical products used in the process of drug synthesis. The production of pharmaceutical intermediates includes raw material preparation, reaction preparation, separation and purification, etc. A large amount of waste gas will be generated during the preparation process, so the discharged gas must be purified and discharged only after it meets the standards.

[0003] A waste gas treatment device for the production of pharmaceutical intermediates disclosed in Chinese patent CN213314099U is provided with a flushing box, a filtering assembly and a detection box. When the waste gas is introduced from the air inlet pipe, the filtered liquid is first added to the flushing box, and the filtered liquid is input into the nozzle through the water inlet pipe. Finally, the filtered liquid is sprayed out through the nozzle, and then the waste gas is filtered by the filtered liquid and the spray in the flushing box to remove some impurities in the waste gas.

[0004] The exhaust gas treatment device introduces exhaust gas into the filtrate through the air inlet pipe, and the fluidity of the filtrate is relatively low, so that the exhaust gas reacts with the filtrate at the end of the air inlet pipe, making it inconvenient to contact with more filtrate, and the exhaust gas treatment efficiency is low.

[0005] In order to solve the above problems, the utility model proposes an environmental protection device for pharmaceutical intermediates. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model proposes an environmental protection device for pharmaceutical intermediates.

[0007] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: comprising a primary filter box and a secondary filter box, the secondary filter box is fixedly connected to the top of the primary filter box, the primary filter box is provided with a liquid inlet mechanism for conveying filtered liquid into the primary filter box, and the primary filter box is provided with a liquid discharge mechanism;

[0008] An air inlet pipe is fixedly passed through the bottom of the side of the first-stage filter box, and the end of the air inlet pipe extending into the inner cavity of the first-stage filter box is fixedly connected to an air cavity, and a plurality of inclined nozzles are evenly distributed on the top of the air cavity, and a plurality of inclined fan blades are rotatably arranged above the air cavity, and the fan blades cooperate with the nozzles;

[0009] The secondary filter box is provided with an exhaust mechanism for exhausting the gas inside the primary filter box, and the exhaust mechanism is connected to the air inlet pipe.

[0010] Furthermore, a support column is fixedly connected to the top of the air cavity, a bearing is fixedly sleeved on the top end of the support column, and the fan blades are evenly distributed on the outer ring surface of the bearing.

[0011] Furthermore, the nozzle is communicated with the air cavity, the opening of the nozzle faces the fan blade, and each nozzle is provided with a one-way valve.

[0012] Furthermore, the liquid inlet mechanism includes a liquid inlet pipe, which is fixedly passed through the top of the side of the first-stage filter box. The end of the liquid inlet pipe extending into the first-stage filter box is fixedly connected to a liquid spray head, and the liquid spray head corresponds to the air cavity up and down.

[0013] Furthermore, the exhaust mechanism includes an air pump, which is fixedly connected to one end of the inner cavity of the secondary filter box, and the other end of the secondary filter box is fixedly connected to an air outlet pipe;

[0014] The input end of the air pump is fixedly connected to an exhaust pipe, the bottom of the exhaust pipe passes through the bottom surface of the secondary filter box and the top surface of the primary filter box in sequence, the bottom end of the exhaust pipe is connected to the inner cavity of the primary filter box, the output end of the air pump is fixedly connected to an exhaust pipe, and a gas filtering assembly is arranged between the exhaust pipe and the outlet pipe.

[0015] Furthermore, the filter assembly includes a plurality of filter plates, and the plurality of filter plates are sequentially installed at intervals inside the secondary filter box.

[0016] Furthermore, one end of the air outlet pipe away from the secondary filter box is provided with a discharge pipe and an air return pipe via a three-way valve, and the other end of the air return pipe is connected to the air inlet pipe.

[0017] Furthermore, an air detector is fixedly connected to the outer surface of the secondary filter box, and a detection head is installed on the inner wall of the secondary filter box close to one end of the air outlet pipe, and the detection head is connected to the air detector.

[0018] Furthermore, the drainage mechanism includes a drainage pipe, which is fixedly connected to the bottom of the primary filter box, and a plug for sealing is provided on the drainage pipe.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The environmental protection equipment for pharmaceutical intermediates is equipped with a number of nozzles and fan blades, which are inclined, and the opening of the nozzle faces the fan blades. When the exhaust gas is introduced into the first-level filter box through the air inlet pipe, the exhaust gas will be blown to the fan blades through the nozzle, causing the fan blades to rotate, and the fan blades stir the filtrate, so that more filtrate contacts the exhaust gas, improving the treatment efficiency of the exhaust gas. At the same time, the filtrate is fully contacted with the exhaust gas, making the reaction more complete.

[0021] 2. The environmental protection equipment for pharmaceutical intermediates is provided with an exhaust mechanism on the secondary filter box, and the exhaust mechanism is connected to the air inlet pipe. After the waste gas is passed into the primary filter box for treatment, the waste gas after preliminary treatment is passed into the secondary filter box through an air pump, so that the waste gas passes through multiple filter plates for filtration again, and the filtered waste gas will be detected by the detection head. If it is qualified, it will be discharged. If it is unqualified, it will enter the primary filter box again through the return air pipe for re-treatment, so that the waste gas treatment effect is good and the purpose of environmental protection is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0023] Figure 2 It is a cross-sectional view of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the liquid spray head in the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the fan blade in the utility model;

[0026] Figure 5 This utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 6 It is a structural schematic diagram of the air cavity in the utility model.

[0028] In the figure: 1. primary filter box; 2. secondary filter box; 3. air inlet pipe; 4. air cavity; 5. nozzle; 6. fan blades; 7. bearing; 8. support column; 9. liquid inlet pipe; 10. liquid spray head; 11. air suction pipe; 12. air pump; 13. exhaust pipe; 14. filter plate; 15. air detector; 16. air outlet pipe; 17. discharge pipe; 18. return air pipe; 19. three-way valve; 20. drain pipe; 21. plug; 22. detection head. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-Figure 6 As shown, the technical solution adopted by the utility model is as follows: an environmental protection device for pharmaceutical intermediates, comprising a primary filter box 1 and a secondary filter box 2, wherein the secondary filter box 2 is fixedly connected to the top of the primary filter box 1.

[0031] A drainage mechanism is provided on the primary filter box 1. The drainage mechanism includes a drainage pipe 20, which is fixedly connected to the bottom of the primary filter box 1. A plug 21 for sealing is provided on the drainage pipe 20. The plug 21 can also be a valve.

[0032] An air inlet pipe 3 is fixedly passed through the bottom of the side of the primary filter box 1, and the end of the air inlet pipe 3 extending into the inner cavity of the primary filter box 1 is fixedly connected to an air cavity 4, and a plurality of inclined nozzles 5 are evenly distributed on the top of the air cavity 4.

[0033] A plurality of inclined blades 6 are rotatably arranged above the air cavity 4, and the blades 6 cooperate with the nozzle 5. A support column 8 is fixedly connected to the top of the air cavity 4, and a bearing 7 is fixedly sleeved on the top of the support column 8, and the blades 6 are evenly distributed on the outer ring surface of the bearing 7.

[0034] The nozzle 5 is connected to the air cavity 4, and the opening of the nozzle 5 faces the fan blade 6. A one-way valve is provided on each nozzle 5. The one-way valve allows the gas in the nozzle 5 to be ejected outwards only and cannot return to the air cavity 4, thereby preventing the filtered liquid in the primary filter box 1 from entering the air cavity 4.

[0035] The primary filter box 1 is provided with a liquid inlet mechanism for conveying filtered liquid into the primary filter box 1 .

[0036] The liquid inlet mechanism includes a liquid inlet pipe 9, which is fixedly passed through the top of the side of the primary filter box 1. The end of the liquid inlet pipe 9 extending into the interior of the primary filter box 1 is fixedly connected with a liquid spray head 10, which corresponds to the air cavity 4 up and down. The top of the liquid spray head 10 is fixedly matched and installed with the top wall of the inner cavity of the primary filter box 1.

[0037] The secondary filter box 2 is provided with an exhaust mechanism for exhausting the internal gas of the primary filter box 1 , and the exhaust mechanism is connected to the air inlet pipe 3 .

[0038] The exhaust mechanism includes an air pump 12. The air pump 12 is fixedly connected to one end of the inner cavity of the secondary filter box 2, and the other end of the secondary filter box 2 is fixedly connected to an air outlet pipe 16.

[0039] The end of the air outlet pipe 16 away from the secondary filter box 2 is equipped with a discharge pipe 17 and a return pipe 18 through a three-way valve 19, and the other end of the return pipe 18 is connected to the air inlet pipe 3. A one-way valve is provided at the air inlet end of the air inlet pipe 3, which allows the gas to flow only to the air cavity 4, and the gas in the air cavity 4 and the return pipe 18 cannot flow to the air inlet end of the air inlet pipe 3. A pressure regulating valve is provided on the air inlet pipe 3, which can be adjusted according to the pressure change in the primary filter box 1.

[0040] The input end of the air pump 12 is fixedly connected to an air extraction pipe 11. The bottom of the air extraction pipe 11 passes through the bottom surface of the secondary filter box 2 and the top surface of the primary filter box 1 in sequence, and the bottom end of the air extraction pipe 11 is connected to the inner cavity of the primary filter box 1. The output end of the air pump 12 is fixedly connected to an exhaust pipe 13, and a gas filtering component is arranged between the exhaust pipe 13 and the outlet pipe 16.

[0041] The filter assembly includes a plurality of filter plates 14 , and the plurality of filter plates 14 are sequentially installed in intervals inside the secondary filter box 2 .

[0042] An air detector 15 is fixedly connected to the outer surface of the secondary filter box 2 , and a detection head 22 is installed on the inner wall of the secondary filter box 2 near one end of the air outlet pipe 16 , and the detection head 22 is connected to the air detector 15 .

[0043] Working principle:

[0044] When in use, the filtrate for treating the exhaust gas is introduced into the spray head 10 through the liquid inlet pipe 9, and the spray head 10 sprays the filtrate and drops it into the primary filter box 1, so that the filtrate accumulates and overflows the fan blades 6.

[0045] The exhaust gas is passed into the air cavity 4 through the air inlet pipe 3, and the exhaust gas is ejected through a plurality of nozzles 5, which spray the exhaust gas toward the fan blades 6 to rotate the fan blades 6. At the same time, the ejected exhaust gas enters the filtrate.

[0046] The fan blades 6 will stir the filtrate, so that more filtrate contacts the exhaust gas, thereby improving the exhaust gas treatment efficiency. After an appropriate amount of exhaust gas is introduced, the one-way valve on the air inlet pipe 3 is closed. At this time, the fan blades 6 will stop rotating.

[0047] The waste gas after the reaction of the filtrate will float upward. Start the air pump 12, so that the exhaust pipe 11 extracts the waste gas after the reaction and discharges it into the secondary filter box 2 through the exhaust pipe 13. The waste gas will pass through the filter plate 14 in turn, and then be located at the detection head 22, which will detect the treated waste gas.

[0048] If the test is qualified, turn the knob of the three-way valve 19 to connect the gas outlet pipe 16 with the discharge pipe 17. The gas will be discharged through the discharge pipe 17.

[0049] If the test result is unqualified, turn the knob of the three-way valve 19 to connect the air outlet pipe 16 with the air return pipe 18. At this time, the exhaust gas will enter the air return pipe 18 and be ejected again through the nozzle 5, and the fan blade 6 will rotate. The exhaust gas is processed again until the test result is qualified.

[0050] After the filtrate has been used for a long time, the plug 21 is opened to discharge the filtrate through the drain pipe 20. The filtrate is replaced with a new one and continued to be used.

[0051] The exhaust gas is detected using an air detector 15 and a detection head 22, which have been used in the patent CN213314099U mentioned in the background technology and are both prior arts.

[0052] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmental protection device for pharmaceutical intermediates, characterized in that: It comprises a primary filter box (1) and a secondary filter box (2), wherein the secondary filter box (2) is fixedly connected to the top of the primary filter box (1), the primary filter box (1) is provided with a liquid inlet mechanism for conveying filtered liquid into the primary filter box (1), and the primary filter box (1) is provided with a liquid discharge mechanism; An air inlet pipe (3) is fixedly inserted through the bottom of the side of the primary filter box (1); the end of the air inlet pipe (3) extending into the inner cavity of the primary filter box (1) is fixedly connected to an air cavity (4); a plurality of inclined nozzles (5) are evenly distributed on the top of the air cavity (4); a plurality of inclined fan blades (6) are rotatably arranged above the air cavity (4); the fan blades (6) cooperate with the nozzles (5); The secondary filter box (2) is provided with an exhaust mechanism for exhausting the internal gas of the primary filter box (1), and the exhaust mechanism is connected to the air inlet pipe (3).

2. The environmental protection equipment for pharmaceutical intermediates according to claim 1, characterized in that: The top of the air cavity (4) is fixedly connected with a support column (8), the top end of the support column (8) is fixedly sleeved with a bearing (7), and the fan blades (6) are evenly distributed on the outer ring surface of the bearing (7).

3. The environmental protection equipment for pharmaceutical intermediates according to claim 1, characterized in that: The nozzle (5) is communicated with the air cavity (4), the opening of the nozzle (5) faces the fan blade (6), and each nozzle (5) is provided with a one-way valve.

4. The environmental protection equipment for pharmaceutical intermediates according to claim 1, characterized in that: The liquid inlet mechanism comprises a liquid inlet pipe (9), which is fixedly passed through the top of the side of the primary filter box (1), and the end of the liquid inlet pipe (9) extending into the interior of the primary filter box (1) is fixedly connected to a liquid spray head (10), and the liquid spray head (10) corresponds to the air cavity (4) in upper and lower positions.

5. The environmental protection equipment for pharmaceutical intermediates according to claim 1, characterized in that: The exhaust mechanism comprises an air pump (12), the air pump (12) is fixedly connected to one end of the inner cavity of the secondary filter box (2), and the other end of the secondary filter box (2) is fixedly connected to an air outlet pipe (16); The input end of the air pump (12) is fixedly connected to an exhaust pipe (11), the bottom of the exhaust pipe (11) passes through the bottom surface of the secondary filter box (2) and the top surface of the primary filter box (1) in sequence, the bottom end of the exhaust pipe (11) is connected to the inner cavity of the primary filter box (1), and the output end of the air pump (12) is fixedly connected to an exhaust pipe (13), and a gas filtering component is provided between the exhaust pipe (13) and the outlet pipe (16).

6. The environmental protection equipment for pharmaceutical intermediates according to claim 5, characterized in that: The filter assembly comprises a plurality of filter plates (14), and the plurality of filter plates (14) are sequentially installed at intervals inside the secondary filter box (2).

7. The environmental protection equipment for pharmaceutical intermediates according to claim 5, characterized in that: An end of the air outlet pipe (16) away from the secondary filter box (2) is provided with a discharge pipe (17) and an air return pipe (18) via a three-way valve (19), and the other end of the air return pipe (18) is connected to the air inlet pipe (3).

8. The environmental protection equipment for pharmaceutical intermediates according to claim 5, characterized in that: An air detector (15) is fixedly connected to the outer surface of the secondary filter box (2), and a detection head (22) is installed on the inner wall of the secondary filter box (2) close to one end of the air outlet pipe (16), and the detection head (22) is connected to the air detector (15).

9. The environmental protection equipment for pharmaceutical intermediates according to claim 1, characterized in that: The drainage mechanism comprises a drainage pipe (20), the drainage pipe (20) is fixedly connected to the bottom of the primary filter box (1), and a plug (21) for sealing is arranged on the drainage pipe (20).

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