A pharmaceutical gas filter device capable of pressure division filtration

Abstract

The application relates to the technical field of gas filtration, and discloses a pharmaceutical gas filtering device capable of pressure division filtration, which comprises a separation cylinder, dust discharge ports are arranged on the left and right sides of the bottom of the separation cylinder, a filtering drum is rotationally connected to the inner wall of the separation cylinder, a cleaning disc is slidably connected to the inner wall of the filtering drum, elastic discs are slidably connected to the left and right sides of the inner wall of the separation cylinder and seal the dust discharge ports, an air inlet pipe penetrating through the cleaning disc and the elastic disc is fixedly inserted into the middle of the separation cylinder, and a plurality of dispersion cone ports are arranged on the air inlet pipe. The filtering drum is controlled to continuously rotate and divide the pressure of the exported gas, the cleaning disc is moved to continuously clean the inner wall of the filtering drum, the dust is discharged through the dust discharge ports, the online cleaning of the filtering drum is realized, the filtering pressure is greatly reduced, the generated precipitates are cleaned into the pollution storage ring by the cleaning strips, the online cleaning of the filtering cover is also realized, and the filtering pressure is further reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of gas filtration, and in particular to a pharmaceutical gas filtering device capable of pressure division filtration. BACKGROUND

[0002] With the gradual improvement of the medical industry in China, the pharmaceutical technology field is also gradually improved. In the production process of chemical pharmaceuticals, a large amount of harmful gas is generated in the workshop because various chemical raw materials are used for preparation. Therefore, in order to ensure the physical safety of pharmaceutical personnel, harmful gas filtering equipment is usually installed in the workshop to filter air.

[0003] Patent CN110604982A discloses a harmful gas filtering equipment with pressure division filtration for chemical pharmaceuticals, which comprises a tank body, a support, a waste outlet, an air inlet pipe, a pressure division gas filtering device, a gas pressure gauge, a movable cover and an adjusting knob. The beneficial effect is that the gas flow is divided and filtered to avoid the phenomenon that the local wall of the tank body is thin due to the instantaneous pressure of the gas, and rust is generated.

[0004] Patent CN108786288B discloses a specific technical solution of a pharmaceutical waste gas treatment device, which comprises a device body, an air inlet, a first dust removal device, an activated carbon filtering device, a second dust removal device, a spraying device, a vibration connecting device, a filtering box and a liquid storage tank. The pharmaceutical waste gas treatment device adopts the first dust removal device and the second dust removal device for step-by-step filtration.

[0005] The harmful gas filtering equipment with pressure division filtration for chemical pharmaceuticals in the above patent has the following problems in use. Although the gas flow is divided and filtered, the extension filter bags in each filter structure lack an online cleaning mechanism. When the first extension filter bag in a single filter structure is saturated, the remaining extension filter bags are relatively ineffective, and the filtering effect is poor. The pharmaceutical waste gas treatment device has the following problems in use. Although the vibration mechanism is arranged in the first dust removal device to make the dust particles fall off the filter screen, the dust particles are easily blown onto the surface of the filter screen again under the action of the gas flow, which affects the filtering efficiency. When the spraying device is used, the spraying liquid is easily returned to the first dust removal device along the vibration connecting device, which affects the normal operation of the first dust removal device. In addition, when the spraying liquid reacts to generate precipitates after treating the gas, the precipitates easily affect the subsequent filtering effect and cause the liquid medicine to be difficult to discharge because the necessary online cleaning is also lacking. SUMMARY

[0006] The pharmaceutical gas filtering device with pressure division filtering function has the advantages that the filtering effect is good, the filtering material can be cleaned on line, the filtering device is convenient to use, and the filtering device is suitable for popularization and application.

[0007] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0008] The pharmaceutical gas filtering device with pressure division filtering function has the advantages that the filtering effect is good, the filtering material can be cleaned on line, the filtering device is convenient to use, and the filtering device is suitable for popularization and application.

[0009] The top of the separation cylinder is fixedly connected with a spraying cylinder, the top of the spraying cylinder is fixedly connected with an activated carbon block, the inner wall of the spraying cylinder is provided with a spraying cavity in communication with the separation cylinder and the activated carbon block, a shunt assembly is arranged in the middle of the spraying cavity, a dirt storage ring is arranged at the bottom of the inner cavity of the spraying cylinder, two cleaning strips in a circumferential array are arranged at the top of the dirt storage ring, a filter cover is movably arranged between the dirt storage ring and the inner wall of the spraying cylinder, and a flow discharge groove is formed in the inner wall of the spraying cylinder.

[0010] Further, a U-shaped sealing seat is arranged, the separation cylinder is fixedly connected in the U-shaped sealing seat, a dirt storage groove is formed in the bottom of the inner cavity of the U-shaped sealing seat and is in butt joint with the dust discharge port, and a suction valve pipe one is fixedly inserted into the rear wall of the dirt storage groove.

[0011] Further, the middle part of each of the two elastic discs close to the side of the cleaning disc is provided with a ring convex part.

[0012] Further, the left end of the air inlet pipe extends outwardly through the left wall of the U-shaped sealing seat, the dispersion cone ports are linearly arranged along the axial line of the air inlet pipe and are provided with three rows, and the dispersion cone ports are arranged between the two elastic discs.

[0013] Further, an annular air cavity is arranged between the middle part of the separation cylinder and the filter drum, and a flow guide groove is arranged between the top of the annular air cavity and the spraying cavity.

[0014] Further, the left and right sides of the separation cylinder are rotatably connected with adjusting discs, the adjusting disc on the left side is movably sleeved on the air inlet pipe, two connecting rods are fixedly connected between the adjusting disc and the top side wall of the filter drum, an active groove one corresponding to the connecting rod is formed in the left wall and the right wall of the separation cylinder, and a limiting spring is fixedly connected between the connecting rod and the inner wall of the active groove.

[0015] Further, the adjusting disc is provided with a spiral arc groove, the U-shaped sealing seat is slidably connected with a movable frame, both ends of the bottom of the movable frame are provided with pin convexes which are movably connected with the spiral arc groove, and the right bottom of the movable frame is fixedly connected with a tooth column.

[0016] The U-shaped sealing seat is rotatably connected with a driving worm, the driving worm is driven by a reversible motor installed on the right wall of the U-shaped sealing seat, the driving worm movably penetrates through the two elastic discs and is screwedly connected with the cleaning disc, the right adjusting disc is provided with a movable groove two which is matched with the driving worm, the right inner cavity of the U-shaped sealing seat is rotatably connected with a worm gear which is engaged with the driving worm, and the front side of the worm gear is fixedly sleeved with a toothless gear which is engaged with the tooth column.

[0017] Further, the spraying cavity is provided with a spraying liquid cavity at the top, a plurality of spraying conical openings are arranged on the circumferential surface of the lower wall of the spraying liquid cavity, an input pipe is fixedly and screwedly connected to the rear wall of the spraying liquid cavity, a diffusion groove is arranged between the spraying cavity and the activated carbon block, a sewage storage cavity is arranged between the spraying cylinder and the sewage storage ring, and a sewage discharge pipe which is communicated with the sewage storage cavity is fixedly and screwedly connected to the rear side of the bottom of the spraying cavity.

[0018] Further, the shunt assembly comprises a flow guide ring which is fixedly connected to the middle part of the spraying cavity, the flow guide ring is inclined towards the inner side and downward, the outer side of the bottom of the flow-off groove is fixedly connected with a partition plate which is L-shaped in cross section, the top of the partition plate is below the inner side of the flow guide ring and is separated from the flow guide ring.

[0019] Further, the filter cover is inclined downward towards the inner side, the filter cover is fixedly connected with a bent rod on the left and right sides of the top, the bent rods are fixedly connected with an adjusting sleeve, an arc groove is arranged on the inner wall of the adjusting sleeve, an elastic bearing block is fixedly connected to the upper wall of the inner cavity of the adjusting sleeve, the top of the movable frame penetrates through the spraying cylinder and is rotatably connected with the elastic bearing block, pin convexes two which are movably connected with the arc groove are arranged on the left wall of the top of the movable frame, a suction valve pipe two which is communicated with the inner cavity of the sewage storage ring is fixedly and screwedly connected to the rear wall of the spraying cylinder, and the cleaning strip is arc-shaped and can be attached to the upper wall of the filter cover.

[0020] The beneficial effects of the present application are as follows:

[0021] The present application realizes the online cleaning of the filter drum by controlling the filter drum to continuously rotate and divide the pressure of the gas guided from the air inlet pipe, cooperating with the cleaning disc to continuously clean the inner wall of the filter drum, and the dust and particulate matters are sealedly discharged from the dust discharge port by the extrusion of the elastic disc, so that the filter pressure is greatly reduced.

[0022] This invention delivers gas treated by a filter drum to a spray chamber for purification by spraying with a medicinal solution. The diversion component automatically guides the purified solution through a drain channel to the filter cover, preventing the solution from flowing into the separation cylinder and affecting the filtration of dust particles. The filter cover automatically filters out the precipitate generated during purification and, together with the cleaning strip, cleans it into the dirt collection ring, thus achieving online cleaning of the filter cover and further reducing filtration pressure. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the filtration device of the present invention;

[0024] Figure 2 This is a three-dimensional sectional view of the U-shaped sealing seat and the separation cylinder of the filter device of the present invention;

[0025] Figure 3 This is an exploded view of the regulating disc and separation cylinder of the filter device of the present invention;

[0026] Figure 4 This is a three-dimensional sectional view of the separation cylinder and spray cylinder of the filtration device of the present invention;

[0027] Figure 5 This is a three-dimensional cross-section of the spray cylinder portion of the filtration device of the present invention. Figure 1 ;

[0028] Figure 6 This is an exploded view of the movable frame and adjusting sleeve of the filter device of the present invention;

[0029] Figure 7 This is a three-dimensional cross-section of the spray cylinder portion of the filtration device of the present invention. Figure 2 .

[0030] Reference numerals: 1. U-shaped sealing seat; 11. Suction valve pipe one; 12. Drive worm; 13. Worm gear; 14. Missing gear; 2. Separator cylinder; 21. Dust outlet; 22. Filter drum; 23. Cleaning disc; 24. Elastic disc; 25. Air inlet pipe; 26. Dispersion cone; 3. Adjusting disc; 31. Vortex arc groove; 32. Connecting rod; 33. Limiting spring; 34. Movable frame; 35. Pin protrusion one; 36. Pin protrusion two; 37. Tooth column; 4. Spray cylinder; 41. Activated carbon block; 42. Guide ring; 43. Divider plate; 44. Spray liquid chamber; 45. Spray cone; 46. Input pipe; 47. Sludge collection ring; 48. Sludge discharge pipe; 49. Suction valve pipe two; 410. Cleaning strip; 5. Filter cover; 51. Bent rod; 52. Adjusting sleeve; 53. Arc groove; 54. Elastic bearing block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0032] Example 1, as Figures 1-7 As shown, a pharmaceutical gas filtration device capable of pressure separation includes a separation cylinder 2. Dust discharge ports 21 are provided on both the left and right sides of the bottom of the separation cylinder 2. A filter drum 22 is rotatably connected to the inner wall of the separation cylinder 2. A cleaning disc 23 is slidably connected to the inner wall of the filter drum 22. Elastic discs 24 that seal the dust discharge ports 21 are slidably connected to both the left and right sides of the inner wall of the separation cylinder 2. An air inlet pipe 25 that penetrates the cleaning disc 23 and the elastic disc 24 is fixedly inserted into the middle of the separation cylinder 2. Several dispersive cones 26 are provided on the air inlet pipe 25.

[0033] A spray cylinder 4 is fixedly connected to the top of the separation cylinder 2, and an activated carbon block 41 is fixedly connected to the top of the spray cylinder 4. A spray chamber communicating with the separation cylinder 2 and the activated carbon block 41 is provided on the inner wall of the spray cylinder 4. A flow diversion component is provided in the middle of the spray chamber. A sludge collection ring 47 is provided at the bottom of the inner cavity of the spray cylinder 4. Two cleaning strips 410 in a circular array are provided on the top of the sludge collection ring 47. A filter cover 5 is movably arranged between the sludge collection ring 47 and the inner wall of the spray cylinder 4. A drain groove is opened on the inner wall of the spray cylinder 4.

[0034] An annular air chamber is provided between the middle of the separator 2 and the filter drum 22, and a guide groove is provided between the top of the annular air chamber and the spray chamber.

[0035] In use, pharmaceutical gas is input through the inlet pipe 25 and output to the filter drum 22 through the dispersion cone 26. The filter drum 22 is continuously rotated, thereby achieving pressure-based filtration of the gas output from the inlet pipe 25. In conjunction with the control of the cleaning disc 23 moving back and forth, the inner wall of the filter drum 22 is continuously scraped for cleaning. The cleaned dust and particles are discharged through the dust outlet 21 via the compression spring disc 24, thus achieving online cleaning of the filter drum 22 and greatly reducing the filtration pressure. The gas subsequently processed by the filter drum 22 enters the annular gas chamber and then enters the spray cylinder through the guide channel. In the spray chamber 4, the sprayed liquid purifies and filters the gas. The gas flows upward in the spray chamber, passes through the activated carbon block 41 for filtration, and is then discharged outward. During this process, the diversion component automatically guides and separates the liquid after the action, preventing the liquid from flowing into the separation cylinder 2. Instead, the liquid after the action is guided to the filter cover 5 through the drain channel. The filter cover 5 automatically filters out the precipitate generated during the purification process. During this process, the filter cover 5, in conjunction with the cleaning strip 410, cleans the precipitate into the dirt collection ring 47, thereby achieving online cleaning of the filter cover 5, further reducing the filtration pressure, and facilitating the rapid discharge of the liquid after the action.

[0036] Example 2, based on the above examples, also includes a U-shaped sealing seat 1, with the separation cylinder 2 fixedly connected in the U-shaped sealing seat 1. The bottom of the inner cavity of the U-shaped sealing seat 1 is provided with a dust collection tank that connects to the dust discharge port 21, and a suction valve pipe 11 is fixedly inserted into the rear wall of the dust collection tank.

[0037] Through the design, the dust and particles discharged from the dust discharge port 21 can automatically fall into the dust storage groove, and the dust discharge port 21 is regularly sucked by the suction valve pipe 11, so that the cleaning of the dust storage groove can be realized, the storage pressure is reduced, and the normal discharge of the cleaned dust and particles in the filter drum 22 is ensured.

[0038] In example three, the middle part of each of the two elastic discs 24 near the cleaning disc 23 is provided with a ring convex part.

[0039] The left end of the air inlet pipe 25 extends outwardly through the left wall of the U-shaped sealing seat 1, and the dispersion cone port 26 is linearly arranged along the axial line of the air inlet pipe 25 and is provided with three rows. The dispersion cone port 26 is between the two elastic discs 24.

[0040] The left end of the air inlet pipe 25 extends outwardly through the left wall of the U-shaped sealing seat 1, and the dispersion cone port 26 is linearly arranged along the axial line of the air inlet pipe 25 and is provided with three rows. The dispersion cone port 26 is between the two elastic discs 24.

[0041] Since the dispersion cone port 26 is between the two elastic discs 24, when the cleaning disc 23 moves to the left or right side and passes the most edge dispersion cone port 26, the gas between the cleaning disc 23 and the corresponding elastic disc 24 is filtered and discharged by the filter drum 22. When the cleaning disc 23 is pressed to the ring convex part of the elastic disc 24, the cleaning disc 23 presses and moves the elastic disc 24 and opens the dust discharge port 21. The dust and particles accumulated between the cleaning disc 23 and the elastic disc 24 are automatically dropped out of the dust discharge port 21. After the cleaning disc 23 is moved away, the elastic disc 24 is reset again to seal the dust discharge port 21 under the action of its own elastic force, so as to avoid the influence of the backflow of the gas on the filtration.

[0042] In example four, the left and right sides of the separation cylinder 2 are rotatably connected with the adjusting disc 3. The left adjusting disc 3 is movably sleeved on the air inlet pipe 25. The adjusting disc 3 is fixedly connected with two connecting rods 32 between the top side wall of the filter drum 22. The left and right walls of the separation cylinder 2 are provided with movable grooves I corresponding to the connecting rods 32. The connecting rods 32 are fixedly connected with limit springs 33 between the inner walls of the movable grooves.

[0043] The adjusting disc 3 is provided with a spiral arc groove 31. The U-shaped sealing seat 1 is movably inserted with a movable frame 34. The bottom ends of the movable frame 34 are provided with pin protrusions I 35 movably connected with the spiral arc groove 31. The right bottom end of the movable frame 34 is fixedly connected with a tooth column 37.

[0044] The U-shaped sealing seat 1 is rotationally connected with a driving worm 12, the driving worm 12 is driven by a forward and reverse motor installed on the right wall of the U-shaped sealing seat 1, the driving worm 12 movably penetrates through two elastic discs 24, and is screwedly inserted with the cleaning disc 23, the right adjusting disc 3 is provided with a movable groove two matched with the driving worm 12, the right side of the inner cavity of the U-shaped sealing seat 1 is rotationally connected with a worm gear 13 engaged with the driving worm 12, and the front side of the worm gear 13 is fixedly sleeved with a toothless gear 14 engaged with the tooth column 37.

[0045] The driving worm 12 is controlled by the forward and reverse motor to drive the cleaning disc 23 to move leftward and rightward with a large positive and negative rotation span, so that the reciprocating cleaning of the inner wall of the filtering drum 22 can be realized, and the filtering pressure is reduced; correspondingly, when the driving worm 12 is reversely rotated, the driving worm 12 drives the worm gear 13 to make the toothless gear 14 continuously rotate, so that the tooth column 37 drives the movable frame 34 to move the vortex arc groove 31 by the pin convex 35, the vortex arc groove 31 drives the adjusting disc 3 to make the connecting rod 32 drive the filtering drum 22 to rotate, under the elastic force of the limiting spring 33, the filtering drum 22 reciprocally deflects by intermittently engaging the tooth column 37 with the toothless gear 14, the filtering area is continuously adjusted, the filtering effect is enhanced, the filtering pressure is reduced, and the dust particles on the inner wall are driven to rotate relative to the cleaning disc 23, so that the scraping and cleaning effect of the cleaning disc 23 is enhanced.

[0046] In the embodiment five, on the basis of the above-mentioned embodiments, the spraying cavity is provided with a spraying liquid cavity 44, a plurality of spraying conical ports 45 are arranged on the lower wall of the spraying liquid cavity 44 in a circumferential direction, an input pipe 46 is fixedly inserted into the rear wall of the spraying liquid cavity 44, a dispersing groove is arranged between the spraying cavity and the activated carbon block 41, a sewage storage cavity is arranged between the spraying cylinder 4 and the sewage storage ring 47, and a sewage discharge pipe 48 is fixedly inserted into the rear side of the bottom of the spraying cavity and communicates with the sewage storage cavity.

[0047] The gas treated by the filtering drum 22 enters the spraying cavity in the spraying cylinder 4 from the annular air cavity and the flow guide groove, treatment liquid is input into the spraying liquid cavity 44 through the input pipe 46 by an external input mechanism, the treatment liquid is sprayed downward through each spraying conical port 45, the upward flowing gas is covered and purified, the filtered gas flows upward in the spraying cavity, enters the activated carbon block 41 through the dispersing groove, is treated again, and is discharged outward, and the used treatment liquid flows to the sewage storage cavity through the drainage groove and is automatically discharged through the sewage discharge pipe 48.

[0048] In the embodiment six, on the basis of the above-mentioned embodiments, the shunt assembly comprises a flow guide ring 42 fixedly connected to the middle part of the spraying cavity, the flow guide ring 42 is inclined downward toward the inner side, and a partition plate 43 with an L-shaped cross section is fixedly connected to the outer side of the bottom of the drainage groove, the top of the partition plate 43 is below and inside the flow guide ring 42, and the partition plate 43 is separated from the flow guide ring 42.

[0049] Through the design, when the spraying liquid falls, the guide ring 42 can guide the reacted liquid into the inner cavity of the partition plate 43, and the reacted liquid is output from the flow discharge groove, thereby avoiding the reacted liquid from falling into the flow guide groove and entering the separation cylinder 2, affecting the filtration of dust particles, and the separation design of the top of the partition plate 43 and the guide ring 42 facilitates the gas in the flow guide groove to be transported into the spraying cavity.

[0050] In the seventh embodiment, on the basis of the above-mentioned embodiments, the top of the filter cover 5 is inclined downward toward the inside, the top of the filter cover 5 is fixedly connected with the bent rods 51 on the left and right sides, the bent rods 51 are fixedly connected with the adjusting sleeve 52, the inner wall of the adjusting sleeve 52 is provided with the arc-shaped recess 53, the inner cavity of the adjusting sleeve 52 is fixedly connected with the elastic bearing block 54, the top of the movable frame 34 penetrates through the spraying cylinder 4 and is rotatably connected with the elastic bearing block 54, the left wall of the top end of the movable frame 34 is provided with the pin convex two 36 which is movably connected with the arc-shaped recess 53, the rear wall of the spraying cylinder 4 is fixedly connected with the suction valve pipe two 49 which is in communication with the inner cavity of the dirt storage ring 47, and the cleaning strip 410 is arc-shaped and can be attached to the upper wall of the filter cover 5.

[0051] When the filter drum 22 reciprocatingly deflects, the corresponding movable frame 34 reciprocatingly moves up and down, when the missing tooth gear 14 rotates clockwise, the movable frame 34 intermittently moves up, the corresponding movable frame 34 drives the adjusting sleeve 52 to intermittently move up by means of the elastic bearing block 54, the adjusting sleeve 52 drives the bent rods 51 to make the filter cover 5 intermittently move up, the elastic bearing block 54 keeps the relative fixation between the adjusting sleeve 52 and the movable frame 34 during the upward movement of the filter cover 5, and the filter cover 5 will not rotate, when the filter cover 5 moves up and is attached to the cleaning strip 410, with the continuous upward movement of the movable frame 34, the elastic bearing block 54 is compressed, the pin convex two 36 is driven to press the arc-shaped recess 53, thereby driving the adjusting sleeve 52 to make the filter cover 5 deflect toward the side which is bent toward the cleaning strip 410, and the generated precipitate can be scraped off into the dirt storage ring 47 by means of the cleaning strip 410, and the dirt storage ring 47 can be cleaned regularly by cooperating with the suction valve pipe two 49, thereby reducing the storage pressure, during the shielding of the filter cover 5 to the flow discharge groove, the filter holes on the filter cover 5 allow the normal passage of the liquid to be discharged, and when the filter cover 5 moves down, the outer wall of the filter cover 5 moves relative to the flow discharge groove, so that the precipitate filtered by the outer wall can be scraped, and the precipitate can be moved to the filter cover 5 subsequently;

[0052] When the missing tooth gear 14 rotates counterclockwise, the movable frame 34 intermittently moves down, and the cleaning of the filter cover 5 by the cleaning strip 410 is temporarily suspended, thereby facilitating the accumulation of a sufficient amount of precipitate before cleaning, and reducing the cleaning abrasion.

[0053] The foregoing description of the disclosed embodiments enables a person skilled in the art to make or use the application. Modifications of these embodiments will occur to persons of skill in the art, and that the appended claims are intended to cover all such modifications that do not depart from the true spirit and scope of the application. Therefore, the application is not limited to the embodiments shown but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pressure-dividing filterable pharmaceutical gas filter device comprising a separation cartridge (2), characterized in that, The separating cylinder (2) is provided with dust discharging ports (21) on the left and right sides of the bottom, a filtering drum (22) is rotatably connected to the inner wall of the separating cylinder (2), a cleaning disc (23) is slidably connected to the inner wall of the filtering drum (22), elastic discs (24) are slidably connected to the left and right sides of the inner wall of the separating cylinder (2) and seal the dust discharging ports (21), an air inlet pipe (25) penetrating through the cleaning disc (23) and the elastic discs (24) is fixedly inserted into the middle of the separating cylinder (2), and a plurality of dispersion cone ports (26) are formed in the air inlet pipe (25); The separating cylinder (2) is provided with dust discharging ports (21) on the left and right sides of the bottom, a filtering drum (22) is rotatably connected to the inner wall of the separating cylinder (2), a cleaning disc (23) is slidably connected to the inner wall of the filtering drum (22), elastic discs (24) are slidably connected to the left and right sides of the inner wall of the separating cylinder (2) and seal the dust discharging ports (21), an air inlet pipe (25) penetrating through the cleaning disc (23) and the elastic discs (24) is fixedly inserted into the middle of the separating cylinder (2), and a plurality of dispersion cone ports (26) are formed in the air inlet pipe (25); The separating cylinder (2) is fixedly connected to the U-shaped sealing seat (1); The separating cylinder (2) is provided with dust discharging ports (21) on the left and right sides of the bottom, a filtering drum (22) is rotatably connected to the inner wall of the separating cylinder (2), a cleaning disc (23) is slidably connected to the inner wall of the filtering drum (22), elastic discs (24) are slidably connected to the left and right sides of the inner wall of the separating cylinder (2) and seal the dust discharging ports (21), an air inlet pipe (25) penetrating through the cleaning disc (23) and the elastic discs (24) is fixedly inserted into the middle of the separating cylinder (2), and a plurality of dispersion cone ports (26) are formed in the air inlet pipe (25); The adjusting disc (3) is provided with a vortex arc groove (31), the U-shaped sealing seat (1) is slidably inserted with a movable frame (34), both ends of the bottom of the movable frame (34) are provided with pin protrusions (35) which are movably connected with the vortex arc groove (31), and the right bottom end of the movable frame (34) is fixedly connected with a tooth column (37); The U-shaped sealing seat (1) is rotatably connected with a driving worm (12), the driving worm (12) is driven by a reversible motor mounted on the right wall of the U-shaped sealing seat (1), the driving worm (12) movably penetrates through the two elastic discs (24) and is threadedly inserted with the cleaning disc (23), the right adjusting disc (3) is provided with a movable groove (2) which is matched with the driving worm (12), the right side of the inner cavity of the U-shaped sealing seat (1) is rotatably connected with a worm gear (13) which is engaged with the driving worm (12), and the front side of the worm gear (13) is fixedly sleeved with a toothless gear (14) which is engaged with the tooth column (37). The top of the filter cover (5) is inclined downward towards the inside, both sides of the top of the filter cover (5) are fixedly connected with bent rods (51), the bent rods (51) are fixedly connected with an adjusting sleeve (52), an arc groove (53) is arranged on the inner wall of the adjusting sleeve (52), a spring bearing block (54) is fixedly connected to the upper wall of the inner cavity of the adjusting sleeve (52), the top of the movable frame (34) penetrates the spraying cylinder (4) and is rotatably connected with the spring bearing block (54), a pin convex two (36) is arranged on the left wall of the top end of the movable frame (34) and is movably connected with the arc groove (53), a suction valve pipe two (49) is fixedly inserted into the rear wall of the spraying cylinder (4) and is in communication with the inner cavity of the dirt storage ring (47), and the cleaning strip (410) is arc-shaped and can be attached to the upper wall of the filter cover (5).

2. A pressure-dividing filtered pharmaceutical gas supply apparatus according to claim 1, wherein The inner cavity of the U-shaped sealing seat (1) is provided with a dust storage groove at the bottom, and the dust storage groove is fixedly connected with the dust discharge port (21).

3. A pressure-dividing filtered pharmaceutical gas supply apparatus according to claim 2, wherein The middle part of each of the two elastic discs (24) is provided with an annular convex part.

4. A pressure-dividing filtered pharmaceutical gas supply apparatus according to claim 3, wherein The left end of the air inlet pipe (25) penetrates the left wall of the U-shaped sealing seat (1) and extends outward, the dispersion cone (26) is linearly arranged along the axial line of the air inlet pipe (25) and is provided with three rows, and the dispersion cone (26) is located between the two elastic discs (24).

5. A pressure-dividing filtered pharmaceutical gas supply apparatus according to claim 4, wherein The middle part of the separation cylinder (2) is provided with an annular air cavity between the filter drum (22), and the annular air cavity is provided with a flow guide groove between the top and the spraying cavity.

6. A pressure-dividing filterable pharmaceutical gas filter device according to claim 1, characterized in that The spraying cavity is provided with a spraying liquid cavity (44) at the top, a plurality of spraying conical ports (45) are arranged on the lower wall of the spraying liquid cavity (44), an input pipe (46) is fixedly inserted into the rear wall of the spraying liquid cavity (44), a diffusion groove is arranged between the spraying cavity and the activated carbon block (41), a dirt storage cavity is arranged between the spraying cylinder (4) and the dirt storage ring (47), and a dirt discharge pipe (48) is fixedly inserted into the bottom rear side of the spraying cavity and is in communication with the dirt storage cavity.

7. A pressure-dividing filterable pharmaceutical gas filter device according to claim 6, characterized in that The shunt assembly comprises a flow guide ring (42) fixedly connected to the middle part of the spraying cavity, the flow guide ring (42) is inclined downward towards the inside, the bottom outer side of the flow guide groove is fixedly connected with a partition plate (43) with an L-shaped cross section, the top of the partition plate (43) is below the inner side of the flow guide ring (42) and is separated from the flow guide ring (42).

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