Nitrogen low-temperature precise control integrated airflow crushing device special for traditional Chinese medicine

Abstract

The utility model discloses a nitrogen low-temperature precise control integrated airflow crushing device special for traditional Chinese medicine, and belongs to the technical field of pharmaceutical equipment. Comprising an air compressor, a gas storage tank, a C-grade precision dust removal filter, a refrigerated dryer, a first T-grade precision dust removal filter, a first A-grade precision oil removal filter, a nitrogen making machine tower A, a nitrogen making machine tower B, a nitrogen buffer tank, a nitrogen storage tank, a pressure valve, a jet mill host, a cyclone separator, a pulse dust collector and an induced draft fan, and a second T-stage precision dust removal filter and a second A-stage precision oil removal filter. The special nitrogen closed-circuit airflow crushing system for the traditional Chinese medicine is developed in a targeted manner, and the traditional Chinese medicine is crushed through the nitrogen group, so that the retention rate of easily oxidized components such as American ginseng saponin and menthol is increased to more than 98.5%, and an intelligent solution conforming to the GMP (Good Manufacturing Practice) standard is provided for traditional Chinese medicine wall-broken decoction pieces and nano preparations.

Description

Technical Field

[0001] This invention belongs to the field of pulverizing machinery technology, specifically relating to an integrated airflow pulverizing device for precise control of nitrogen at low temperature for traditional Chinese medicine. Background Technology

[0002] In the field of ultrafine powder processing of traditional Chinese medicine, traditional airflow pulverization technology, relying on air as a source, leads to severe oxidation of active ingredients, especially causing irreversible damage to volatile components such as tanshinone and borneol, as well as heat-sensitive medicinal materials such as polysaccharides and saponins. Current processes using airflow pulverization systems result in material waste and increased production costs. This invention innovatively develops a closed-loop pulverization system for traditional Chinese medicine based on a single nitrogen source. Through a PSA nitrogen generation module and three-stage oxygen control technology, it constructs a fully antioxidant environment, overcoming process challenges such as the oily sticking of Angelica sinensis and the hygroscopic nature of Rehmannia glutinosa powder. The system adopts a closed-loop nitrogen design and a modular energy-saving structure, reducing equipment investment by 55%-60% compared to traditional system configurations. It achieves an industry breakthrough in high retention rates of total saponins from Panax notoginseng, while intelligent parameter matching reduces manual intervention by 30%. This provides a GMP compliance solution for cell-wall broken Chinese medicine slices and nano-preparations that combines antioxidant protection with cost-effective production. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, this utility model provides an integrated airflow pulverizing device for precise low-temperature nitrogen control of traditional Chinese medicine.

[0004] The present invention provides an integrated airflow pulverizing device for low-temperature precision control of nitrogen gas for traditional Chinese medicine, which has the advantages of integrated design, compact structure, convenience, high cost-effectiveness, safety and environmental protection.

[0005] A special nitrogen-based low-temperature precision control integrated airflow pulverizer for traditional Chinese medicine includes an air compressor 1, an air storage tank 2, a C-level precision dust filter 3, a refrigerated dryer 4, a first T-level precision dust filter 5, a first A-level precision oil filter 6, a nitrogen generator A tower 7, a nitrogen generator B tower 8, a nitrogen buffer tank 9, a nitrogen storage tank 10, a pressure valve 11, an airflow pulverizer main unit 13, a cyclone separator 14, a pulse dust collector 15, an induced draft fan 17, a second T-level precision dust filter 18, and a second A-level precision oil filter 19.

[0006] The air outlet of the air compressor 1 is connected to the air inlet of the air storage tank 2 through a pipeline. The air outlet of the air storage tank 2 is connected to the air inlet of the C-level precision dust filter 3 through a pipeline. The air outlet of the C-level precision dust filter 3 is connected to the air inlet of the refrigerated dryer 4 through a pipeline. The air outlet of the refrigerated dryer 4 is connected to the first T-level precision dust filter 5 and the first A-level precision oil filter 6 through a pipeline. The first A-level precision oil filter 6 is connected to the nitrogen generator A tower 7 through a pipeline.

[0007] The outlet of nitrogen generator A tower 7 is connected to the inlet of nitrogen generator B tower 8 via a pipeline. The outlet of nitrogen generator B tower 8 is connected to the inlet of nitrogen buffer tank 9 via a pipeline. The outlet of nitrogen buffer tank 9 is connected to the inlet of nitrogen storage tank 10 via a pipeline. The outlet of nitrogen storage tank 10 is connected to the second T-stage precision dust filter 18 and the second A-stage precision oil filter 19 via pipelines. The second A-stage precision oil filter 19 is connected to pressure valve 11 via a pipeline. Pressure valve 11 is connected to air jet mill main unit 13 via a pipeline. Air jet mill main unit 13 is connected to cyclone separator 14 via a pipeline. Cyclone separator 14 is connected to pulse dust collector 15. Pulse dust collector 15 is connected to induced draft fan 17 via a pipeline.

[0008] How to use this utility model:

[0009] When nitrogen gas pulverization is performed, air compressor 1 is started. Air and particulate dust enter the air storage tank 2 for temporary storage through the pipeline. The outlet gas of air storage tank 2 passes through a C-level precision dust filter 3 for dust removal and a refrigerated dryer 4 for dehumidification, converting the humid air into dry air. The dry air continues to flow through the first T-level precision dust filter 5 and the first A-level precision oil filter 6, completing three-stage purification. The purified air is delivered to the nitrogen generator unit through the pipeline on the right. The PLC system controls the nitrogen generator A tower 7 and nitrogen generator B tower 8 to operate alternately. When nitrogen generator A tower 7 adsorbs nitrogen, the nitrogen generator B tower 8... Tower B desorbs waste gas, and vice versa, to achieve continuous nitrogen supply. The separated high-purity nitrogen enters nitrogen buffer tank 9 for pressure stabilization and nitrogen storage tank 10 for storage. The nitrogen passes through the second T-level precision dust filter 18 and the second A-level precision oil filter 19 again to ensure the cleanliness of the gas entering the air jet mill 13. The nitrogen carries the material into the air jet mill 13. After the material is crushed in the air jet mill 13, the powder-carrying airflow enters the cyclone separator 14, where centrifugal force is used to separate light and heavy particles. The light particles enter the collection system with the airflow.

[0010] The advantages of this utility model compared with the prior art are:

[0011] I. This utility model uses PSA nitrogen generation technology to construct an oxygen-free pulverizing environment. Through a three-stage oxygen control system (pre-nitrogen purging → process monitoring → tail gas regeneration), the oxygen concentration is stably controlled below 100ppm, so that the retention rate of heat-sensitive components such as total saponins of Panax notoginseng and menthol reaches more than 98.5%, effectively avoiding the oxidative degradation of volatile substances such as tanshinone and borneol.

[0012] II. This utility model adopts a closed nitrogen system to achieve zero external pollution in the pulverization process, simultaneously solving the agglomeration problem of hygroscopic medicinal materials (such as Rehmannia glutinosa), and preventing the escape of medicinal powder through the anti-leakage structure, which meets the GMP clean production standards.

[0013] Third, this utility model adopts a single nitrogen source integrated solution to replace the traditional system configuration, reducing equipment costs. Combined with a modular quick-release structure and low-consumption material design, the overall operation and maintenance costs are reduced compared to the open system. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the integrated airflow pulverizer for low-temperature precision control of nitrogen gas for traditional Chinese medicine, as described in this utility model. In the figure, 1 is an air compressor, 2 is an air storage tank, 3 is a C-level precision dust filter, 4 is a refrigerated dryer, 5 is a first T-level precision dust filter, 6 is a first A-level precision oil filter, 7 is nitrogen generator A tower, 8 is nitrogen generator B tower, 9 is a nitrogen buffer tank, 10 is a nitrogen storage tank, 11 is a pressure valve, 12 is a manual ball valve, 13 is the main unit of the airflow pulverizer, 14 is a cyclone separator, 15 is a pulse dust collector, 16 is a valve, 17 is an induced draft fan, 18 is a second T-level precision dust filter, and 19 is a second A-level precision oil filter. Detailed Implementation

[0015] Specific Implementation Method 1: This implementation method is a special nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine, including an air compressor 1, an air storage tank 2, a C-level precision dust filter 3, a refrigerated dryer 4, a first T-level precision dust filter 5, a first A-level precision oil filter 6, a nitrogen generator A tower 7, a nitrogen generator B tower 8, a nitrogen buffer tank 9, a nitrogen storage tank 10, a pressure valve 11, an airflow pulverizer main unit 13, a cyclone separator 14, a pulse dust collector 15, an induced draft fan 17, a second T-level precision dust filter 18, and a second A-level precision oil filter 19;

[0016] The air outlet of the air compressor 1 is connected to the air inlet of the air storage tank 2 through a pipeline. The air outlet of the air storage tank 2 is connected to the air inlet of the C-level precision dust filter 3 through a pipeline. The air outlet of the C-level precision dust filter 3 is connected to the air inlet of the refrigerated dryer 4 through a pipeline. The air outlet of the refrigerated dryer 4 is connected to the first T-level precision dust filter 5 and the first A-level precision oil filter 6 through a pipeline. The first A-level precision oil filter 6 is connected to the nitrogen generator A tower 7 through a pipeline.

[0017] The outlet of nitrogen generator A tower 7 is connected to the inlet of nitrogen generator B tower 8 via a pipeline. The outlet of nitrogen generator B tower 8 is connected to the inlet of nitrogen buffer tank 9 via a pipeline. The outlet of nitrogen buffer tank 9 is connected to the inlet of nitrogen storage tank 10 via a pipeline. The outlet of nitrogen storage tank 10 is connected to the second T-stage precision dust filter 18 and the second A-stage precision oil filter 19 via pipelines. The second A-stage precision oil filter 19 is connected to pressure valve 11 via a pipeline. Pressure valve 11 is connected to air jet mill main unit 13 via a pipeline. Air jet mill main unit 13 is connected to cyclone separator 14 via a pipeline. Cyclone separator 14 is connected to pulse dust collector 15. Pulse dust collector 15 is connected to induced draft fan 17 via a pipeline.

[0018] Specific Implementation Method Two: The difference between this implementation method and Specific Implementation Method One is that the air compressor 1 has a discharge capacity of 8.8 Nm. 3 The exhaust pressure is 1.0 MPa. Other steps are the same as in Specific Implementation Method 1.

[0019] Specific Implementation Method Three: This implementation method differs from Specific Implementation Method One or Two in that the gas storage tank 2 is a high-pressure gas storage tank. The other steps are the same as in Specific Implementation Method One or Two.

[0020] Specific Implementation Method Four: This implementation method differs from Specific Implementation Methods One to Three in that a manual ball valve 12 is installed on the pipeline connecting the pressure valve 11 to the main unit 13 of the airflow pulverizer. The other steps are the same as in Specific Implementation Methods One to Three.

[0021] Specific Implementation Method Five: This implementation method differs from Specific Implementation Methods One to Four in that a valve 16 is provided on the pipeline connecting the pulse dust collector 15 and the induced draft fan 17. The other steps are the same as in Specific Implementation Methods One to Four.

[0022] Specific Implementation Method Six: This implementation method differs from Specific Implementation Methods One to Five in that the integrated airflow pulverizing device for low-temperature precision control of nitrogen for traditional Chinese medicine also includes a PLC system. The PLC system controls nitrogen generator A tower 7 and nitrogen generator B tower 8 to operate alternately. When nitrogen generator A tower 7 adsorbs nitrogen, nitrogen generator B tower 8 desorbs waste gas, and vice versa, thus achieving continuous nitrogen supply. Other steps are the same as in Specific Implementation Methods One to Five.

[0023] The beneficial effects of this utility model are verified using the following embodiments:

[0024] Example 1: A nitrogen-specific low-temperature precision control integrated airflow pulverizer for traditional Chinese medicine, comprising an air compressor 1, an air storage tank 2, a C-grade precision dust filter 3, a refrigerated dryer 4, a first T-grade precision dust filter 5, a first A-grade precision oil filter 6, a nitrogen generator A tower 7, a nitrogen generator B tower 8, a nitrogen buffer tank 9, a nitrogen storage tank 10, a pressure valve 11, an airflow pulverizer main unit 13, a cyclone separator 14, a pulse dust collector 15, an induced draft fan 17, a second T-grade precision dust filter 18, and a second A-grade precision oil filter 19;

[0025] The air outlet of the air compressor 1 is connected to the air inlet of the air storage tank 2 through a pipeline. The air outlet of the air storage tank 2 is connected to the air inlet of the C-level precision dust filter 3 through a pipeline. The air outlet of the C-level precision dust filter 3 is connected to the air inlet of the refrigerated dryer 4 through a pipeline. The air outlet of the refrigerated dryer 4 is connected to the first T-level precision dust filter 5 and the first A-level precision oil filter 6 through a pipeline. The first A-level precision oil filter 6 is connected to the nitrogen generator A tower 7 through a pipeline.

[0026] The outlet of nitrogen generator A tower 7 is connected to the inlet of nitrogen generator B tower 8 via a pipeline. The outlet of nitrogen generator B tower 8 is connected to the inlet of nitrogen buffer tank 9 via a pipeline. The outlet of nitrogen buffer tank 9 is connected to the inlet of nitrogen storage tank 10 via a pipeline. The outlet of nitrogen storage tank 10 is connected to the second T-stage precision dust filter 18 and the second A-stage precision oil filter 19 via pipelines. The second A-stage precision oil filter 19 is connected to pressure valve 11 via a pipeline. Pressure valve 11 is connected to air jet mill main unit 13 via a pipeline. Air jet mill main unit 13 is connected to cyclone separator 14 via a pipeline. Cyclone separator 14 is connected to pulse dust collector 15. Pulse dust collector 15 is connected to induced draft fan 17 via a pipeline.

[0027] The air compressor 1 has a discharge capacity of 8.8 Nm. 3 The exhaust pressure is 1.0 MPa;

[0028] The gas storage tank 2 is a high-pressure gas storage tank;

[0029] A manual ball valve 12 is installed on the pipeline connecting the pressure valve 11 to the main unit 13 of the air jet mill;

[0030] A valve 16 is provided on the pipeline connecting the pulse dust collector 15 and the induced draft fan 17;

[0031] The integrated airflow pulverizer with low-temperature precision control of nitrogen for traditional Chinese medicine also includes a PLC system. The PLC system controls nitrogen generator A tower 7 and nitrogen generator B tower 8 to operate alternately. When nitrogen generator A tower 7 adsorbs nitrogen, nitrogen generator B tower 8 desorbs waste gas, and when nitrogen generator B tower 8 adsorbs nitrogen, nitrogen generator A tower 7 desorbs waste gas, thus achieving continuous nitrogen supply.

[0032] The beneficial effects of Example 1 compared to the prior art are:

[0033] I. This embodiment uses PSA nitrogen generation technology to construct an oxygen-free pulverizing environment. Through a three-stage oxygen control system (pre-nitrogen purging → process monitoring → tail gas regeneration), the oxygen concentration is stably controlled below 100 ppm, so that the retention rate of heat-sensitive components such as total saponins of Panax notoginseng and menthol reaches more than 98.5%, effectively avoiding the oxidative degradation of volatile substances such as tanshinone and borneol.

[0034] Second, this embodiment uses a closed nitrogen system to achieve zero external pollution in the pulverization process, simultaneously solving the agglomeration problem of hygroscopic medicinal materials (such as Rehmannia glutinosa), and preventing the escape of medicinal powder through a leak-proof structure, which meets GMP clean production standards.

[0035] Third, in this embodiment, a single nitrogen source integrated solution is used to replace the traditional system configuration, reducing equipment costs. Combined with a modular quick-release structure and low-consumption material design, the overall operation and maintenance costs are reduced compared to an open system.

Claims

1. A special nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine, characterized in that The traditional Chinese medicine special nitrogen low-temperature precision control integrated airflow pulverizer device comprises an air compressor (1), an air storage tank (2), a C-grade precision dust removal filter (3), a refrigeration dryer (4), a first T-grade precision dust removal filter (5), a first A-grade precision oil removal filter (6), a nitrogen generator A tower (7), a nitrogen generator B tower (8), a nitrogen buffer tank (9), a nitrogen storage tank (10), a pressure valve (11), an airflow pulverizer main machine (13), a cyclone separator (14), a pulse dust collector (15), an induced draft fan (17), a second T-grade precision dust removal filter (18) and a second A-grade precision oil removal filter (19). The air outlet of the air compressor (1) is connected with the air inlet of the air storage tank (2) through a pipeline, the air outlet of the air storage tank (2) is connected with the air inlet of the C-grade precision dust removal filter (3) through a pipeline, the air outlet of the C-grade precision dust removal filter (3) is connected with the air inlet of the refrigeration dryer (4) through a pipeline, the air outlet of the refrigeration dryer (4) is connected with the first T-grade precision dust removal filter (5) and the first A-grade precision oil removal filter (6) through a pipeline, and the first A-grade precision oil removal filter (6) is connected with the nitrogen generator A tower (7) through a pipeline. The air outlet of the nitrogen generator A tower (7) is connected with the air inlet of the nitrogen generator B tower (8) through a pipeline, the air outlet of the nitrogen generator B tower (8) is connected with the air inlet of the nitrogen buffer tank (9) through a pipeline, the air outlet of the nitrogen buffer tank (9) is connected with the air inlet of the nitrogen storage tank (10) through a pipeline, the air outlet of the nitrogen storage tank (10) is connected with the second T-grade precision dust removal filter (18) and the second A-grade precision oil removal filter (19) through a pipeline in sequence, the second A-grade precision oil removal filter (19) is connected with the pressure valve (11) through a pipeline, the pressure valve (11) is connected with the airflow pulverizer main machine (13) through a pipeline, the airflow pulverizer main machine (13) is connected with the cyclone separator (14) through a pipeline, the cyclone separator (14) is connected with the pulse dust collector (15), and the pulse dust collector (15) is connected with the induced draft fan (17) through a pipeline.

2. The nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine according to claim 1, characterized in that The air compressor (1) has a discharge capacity of 8.8 Nm 3 and a discharge pressure of 1.0 MPa.

3. The nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine according to claim 1, characterized in that The air storage tank (2) is a high-pressure air storage tank.

4. The nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine according to claim 1, characterized in that A hand-operated ball valve (12) is arranged on the pipeline through which the pressure valve (11) is connected with the airflow pulverizer main machine (13).

5. The nitrogen low-temperature precision control integrated airflow pulverizing device for traditional Chinese medicine according to claim 1, characterized in that A valve (16) is arranged on the pipeline through which the pulse dust collector (15) is connected with the induced draft fan (17).

6. The integrated nitrogen gas low-temperature precision control device for traditional Chinese medicine airflow pulverization according to claim 1, characterized in that The traditional Chinese medicine special nitrogen low-temperature precision control integrated airflow pulverizer device further comprises a PLC system, the PLC system controls the nitrogen generator A tower (7) and the nitrogen generator B tower (8) to alternately operate, the nitrogen generator A tower (7) adsorbs nitrogen gas while the nitrogen generator B tower (8) desorbs waste gas, the nitrogen generator B tower (8) adsorbs nitrogen gas while the nitrogen generator A tower (7) desorbs waste gas, and continuous nitrogen supply is realized.

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