Efficient purification pharmaceutical waste gas treatment system
By combining a cyclone dust collector, a spray tower, and a horizontal cyclone oil film scrubber, the problem of incomplete purification in pharmaceutical waste gas treatment systems has been solved, achieving efficient removal of dust, odor, and volatile components to meet emission standards.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG YIJIA ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-08
AI Technical Summary
Existing pharmaceutical waste gas treatment systems are unable to effectively treat waste gas containing multiple pollutants, resulting in incomplete purification and failure to meet emission standards.
The system employs a combination of devices including a cyclone dust collector, a spray tower, and a horizontal cyclone oil film scrubber. Through a multi-step purification process involving cyclone dust removal, spray deodorization, and oil film washing, it removes dust, odors, and volatile components from the exhaust gas.
It achieves thorough purification of multiple components in pharmaceutical waste gas, avoids environmental pollution, and improves the purification efficiency and practicality of the equipment.
Smart Images

Figure CN224207755U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of waste gas purification technology, specifically a highly efficient pharmaceutical waste gas treatment system. Background Technology
[0002] In today's era of rapid industrial economic development, the issue of waste gas treatment in the pharmaceutical industry has attracted the attention of relevant environmental protection sectors. Pharmaceutical manufacturing generates dust-laden waste gas, organic solvent volatiles, and odorous gases. After preliminary filtration, the waste gas emitted from industrial workshops no longer meets the requirements of pharmaceutical waste gas emission standards. Existing pharmaceutical waste gas treatment systems have certain limitations and drawbacks, failing to effectively treat pharmaceutical waste gas containing multiple characteristic pollutants. Therefore, a highly efficient and purified pharmaceutical waste gas treatment system is proposed. Utility Model Content
[0003] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.
[0004] Therefore, the technical solution adopted by this utility model is as follows:
[0005] A highly efficient pharmaceutical waste gas treatment system includes a spray tower. A first gas delivery pipe is connected to one side of the bottom of the spray tower, and a cyclone dust collector is connected to the other end of the first gas delivery pipe. A dust hopper is installed at the bottom of the cyclone dust collector, and a central cylinder is installed at the top of the cyclone dust collector. A spray pump is installed on the other side of the spray tower, and a spray pipe is connected to the output end of the spray pump. A packing layer is installed in the middle of the inner cavity of the spray tower, and a demisting layer is installed at the top of the inner cavity of the spray tower. A second gas delivery pipe is connected to the top of the spray tower, and a horizontal cyclone oil film scrubber is connected to the other end of the second gas delivery pipe. A spiral guide vane is installed inside the horizontal cyclone oil film scrubber, and an organic solvent tank is installed at the bottom of the horizontal cyclone oil film scrubber. A third gas delivery pipe is connected to the other side of the top of the horizontal cyclone oil film scrubber, and a centrifugal fan is connected to the other end of the centrifugal fan. A discharge pipe is connected to the other end of the centrifugal fan.
[0006] Preferably, the central cylinder is connected to the first air supply pipe, and an air inlet is provided on one side of the cyclone dust collector.
[0007] Preferably, the top end of the spray pipe extends into the interior of the spray tower, and the number of spray pipes is two, matching the number of packing layers, with the two spray pipes respectively positioned above the two packing layers.
[0008] Preferably, the water pump's pumping pipe is connected to the bottom of the spray tower, and the bottom of the spray tower's inner cavity is filled with a deodorizing solution.
[0009] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:
[0010] In this invention, a cyclone dust collector is used for pre-separation to remove dust from the exhaust gas. The dust-free exhaust gas is then introduced into a spray tower, where a deodorizing solution is sprayed through the spray pipes in conjunction with a packing layer to remove odorous components from the exhaust gas. The exhaust gas is then introduced into a horizontal cyclone oil film scrubber to remove volatile components, thus completing the purification of the exhaust gas. This effectively removes multiple components from the exhaust gas, avoiding incomplete purification that could pollute the environment and improving the practicality of the device. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of an embodiment of the present invention.
[0012] Figure label:
[0013] 1. Cyclone dust collector; 2. Ash hopper; 3. Central cylinder; 4. First air delivery pipe; 5. Spray tower; 6. Spray pump; 7. Spray pipe; 8. Packing layer; 9. Demisting layer; 10. Second air delivery pipe; 11. Horizontal cyclone oil film scrubber; 12. Spiral guide vanes; 13. Organic solvent tank; 14. Third air delivery pipe; 15. Centrifugal fan; 16. Discharge pipe. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.
[0015] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a highly efficient pharmaceutical waste gas treatment system.
[0016] Example:
[0017] Combination Figure 1As shown, this utility model provides a high-efficiency pharmaceutical waste gas treatment system, including a spray tower 5. A first gas supply pipe 4 is connected to one side of the bottom of the spray tower 5, and a cyclone dust collector 1 is connected to the other end of the first gas supply pipe 4. A dust hopper 2 is provided at the bottom of the cyclone dust collector 1, and a central cylinder 3 is provided at the top of the cyclone dust collector 1. The central cylinder 3 is connected to the first gas supply pipe 4, and an air inlet is provided on one side of the cyclone dust collector 1. A spray pump 6 is installed on the other side of the spray tower 5, and a spray pipe 7 is connected to the output end of the spray pump 6. A packing layer 8 is provided in the middle of the inner cavity of the spray tower 5. The top end of the spray pipe 7 penetrates into the interior of the spray tower 5, and the number of spray pipes 7 is two, matching the number of packing layers 8. Pipes 7 are respectively set above the two packing layers 8. The water pump 6 is connected to the bottom of the spray tower 5. The bottom of the inner cavity of the spray tower 5 is filled with deodorizing solution, and the top of the inner cavity of the spray tower 5 is equipped with a demisting layer 9. The top of the spray tower 5 is connected to a second air supply pipe 10. The other end of the second air supply pipe 10 is connected to a horizontal cyclone oil film scrubber 11. The horizontal cyclone oil film scrubber 11 is equipped with spiral guide vanes 12, and the bottom of the horizontal cyclone oil film scrubber 11 is equipped with an organic solvent tank 13. The other side of the top of the horizontal cyclone oil film scrubber 11 is connected to a third air supply pipe 14. The other end of the third air supply pipe 14 is connected to a centrifugal fan 15, and the other end of the centrifugal fan 15 is connected to a discharge pipe 16.
[0018] Specifically, the cyclone dust collector 1 can effectively remove dust from the exhaust gas, preventing dust from affecting the spraying inside the spray tower 5 and causing the spray pump 6 to become clogged when drawing the deodorizing solution from the bottom of the spray tower 5, thus improving the linkage effect between the structures.
[0019] The working principle and usage process of this utility model are as follows: First, the waste gas generated during the pharmaceutical manufacturing process is collected by a gas collection hood and then enters a cyclone dust collector 1 for centrifugal dust removal. Particulate dust is deposited in the ash hopper 2 at the bottom of the cyclone dust collector 1 after centrifugal sedimentation. The dust in the ash hopper 2 can be periodically discharged. The waste gas after removing particulate dust is discharged through the central cylinder 3 inside the cyclone dust collector 1 and enters the spray tower 5 through the first gas delivery pipe 4. The deodorizing solution at the bottom of the spray tower 5 is pumped into the spray pipe 7 by the spray pump 6 and sprayed through the nozzles on the spray pipe 7. The malodorous components in the pharmaceutical waste gas react with the deodorizing solution in the packing layer 8 for removal. The cleaned pharmaceutical waste gas finally passes through the demister layer 9 at the top of the spray tower 5 to remove moisture and further remove malodorous components. Pharmaceutical waste gas is discharged from the spray tower 5 and enters the horizontal cyclone oil film scrubber 11 through the second gas delivery pipe 10. After entering the horizontal cyclone oil film scrubber 11, the pharmaceutical waste gas is guided by the spiral guide vanes 12 and rotates in the channel. When the waste gas flow impacts the surface of the organic solvent tank 13 at the bottom of the horizontal cyclone oil film scrubber 11, it will carry some solvent and form an oil film on the inner wall of the channel. As the airflow rotates, the volatile components of the organic solvent are subjected to centrifugal force and are captured on the oil film on the inner wall. Since the airflow rotates several times along the spiral guide vanes 12, most of the volatile organic components in the waste gas can be removed. After thorough treatment, the pharmaceutical waste gas is discharged through the third gas delivery pipe 14 and transported to the discharge pipe 16 by the centrifugal fan 15, and discharged from the discharge pipe 16 in compliance with standards.
[0020] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A highly efficient pharmaceutical waste gas treatment system, comprising a spray tower (5), characterized in that, The bottom of the spray tower (5) is connected to a first air supply pipe (4) on one side, and the other end of the first air supply pipe (4) is connected to a cyclone dust collector (1). A dust hopper (2) is installed at the bottom of the cyclone dust collector (1), and a central cylinder (3) is installed at the top of the cyclone dust collector (1). A spray pump (6) is installed on the other side of the spray tower (5), and the output end of the spray pump (6) is connected to a spray pipe (7). A packing layer (8) is installed in the middle of the inner cavity of the spray tower (5), and a demisting layer (9) is installed at the top of the inner cavity of the spray tower (5). The top end is connected to a second gas supply pipe (10), and the other end of the second gas supply pipe (10) is connected to a horizontal cyclone oil film scrubber (11). The horizontal cyclone oil film scrubber (11) is equipped with spiral guide vanes (12), and the bottom of the horizontal cyclone oil film scrubber (11) is equipped with an organic solvent tank (13). The other side of the top end of the horizontal cyclone oil film scrubber (11) is connected to a third gas supply pipe (14), and the other end of the third gas supply pipe (14) is connected to a centrifugal fan (15). The other end of the centrifugal fan (15) is connected to a discharge pipe (16).
2. The high-efficiency pharmaceutical waste gas treatment system according to claim 1, characterized in that, The central cylinder (3) is connected to the first air supply pipe (4), and an air inlet is provided on one side of the cyclone dust collector (1).
3. The highly efficient pharmaceutical waste gas treatment system according to claim 1, characterized in that, The top of the spray pipe (7) extends into the interior of the spray tower (5), and the number of spray pipes (7) is two, matching the number of packing layers (8). The two spray pipes (7) are respectively set above the two packing layers (8).
4. The high-efficiency pharmaceutical waste gas treatment system according to claim 1, characterized in that, The water pump (6) is connected to the bottom of the spray tower (5), and the bottom of the inner cavity of the spray tower (5) is filled with deodorizing solution.