Multi-stage filtering equipment for alkane production

Abstract

The utility model relates to multi-stage filtering equipment for alkane production, which comprises a vertical filtering tank and is technically characterized in that an air inlet vertical pipe communicated with an air inlet is arranged in the center of the vertical filtering tank, the lower end of the air inlet vertical pipe extends to the bottom of the vertical filtering tank, and a rotatable sleeve is arranged on the outer side of the air inlet vertical pipe. A first-stage filtering assembly, a second-stage filtering assembly and a third-stage filtering assembly are arranged between the rotatable sleeve and the vertical filtering tank, a first flow guide plate is arranged at the position, between the first-stage filtering assembly and the second-stage filtering assembly, of the vertical filtering tank, and a second flow guide plate is arranged at the position, between the second-stage filtering assembly and the third-stage filtering assembly, of the vertical filtering tank; filter screen rings of the first-stage filter assembly, the second-stage filter assembly and the third-stage filter assembly are fixedly connected with the outer wall of the rotatable sleeve, and a radial cleaning brush body tightly connected with the lower surfaces of the filter screen rings is fixed on the inner wall of the vertical filter tank. The equipment improves the filtering efficiency on one hand, and enhances the filtering effect on the other hand.

Description

TECHNICAL FIELD

[0001] The utility model relates to alkane production equipment technical field, concretely relates to a multistage filter equipment for alkane production for recycling alkane gas. BACKGROUND

[0002] In the petrochemical production process, a large amount of rich alkane gas will be produced, and the direct discharge of the rich alkane gas will cause huge energy waste and environmental damage, so it is necessary to recycle and utilize the rich alkane gas. In the recycling process, the filter structure is used to filter out dust and particulate matter in the rich alkane gas to achieve the purpose of purification.

[0003] CN 220424818 U discloses a kind of rich alkane recovery device, it includes main body, and one end of main body is provided with purification tank, and the inside of purification tank is provided with spraying device, and the side of spraying device is provided with air inlet pipe, and one end of air inlet pipe is provided with gas storage tank, and the bottom of purification tank is provided with cleaning device, and the side of cleaning device is provided with blow-off port, and the side of purification tank is provided with heat dissipation device. The device moves down piston plate in cavity and extrudes spring by pulling pull rod, then releases pull rod, piston plate is moved up instantaneously by spring, air in cavity is impacted out instantaneously through air jet nozzle, dust adhered on filter screen is impacted and falls off, and the dust on filter screen is shaken off by repeating the above steps, then is discharged through blow-off port, so as to improve the filtering effect of filter screen. But there are still the following problems: 1, in the purification operation process, the entry of alkane gas is not conducive to the dust on filter screen being shaken off by air jet, so it needs to be stopped for cleaning, which affects the recycling efficiency; 2, dust is filtered only once through filter screen, and the filtering effect needs to be improved. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a multistage filter equipment for alkane production with reasonable structure and reliable use, which improves filtering efficiency and enhances filtering effect.

[0005] The technical scheme of the utility model is:

[0006] The utility model provides a multistage filtering equipment for alkane production, including vertical filter tank, the top of vertical filter tank is equipped with air inlet, and its technical essence is: the centre of vertical filter tank is equipped with air intake vertical pipe who communicates with air inlet, the lower extreme of air intake vertical pipe extends to the bottom of vertical filter tank, the bottom of vertical filter tank is equipped with first ash discharge port, and the conical baffle is supported above first ash discharge port, the conical baffle is close to the lower extreme of air intake vertical pipe, the outside of air intake vertical pipe is equipped with rotatable sleeve, the inside of vertical filter tank is equipped with rotating support structure and drive mechanism corresponding rotatable sleeve, the lower extreme between rotatable sleeve and the inner wall of vertical filter tank is equipped with primary filter assembly, the middle part between rotatable sleeve and the inner wall of vertical filter tank is equipped with secondary filter assembly, the upper part between rotatable sleeve and the inner wall of vertical filter tank is equipped with tertiary filter assembly, the position between primary filter assembly and secondary filter assembly of vertical filter tank is provided with first deflector, the position between secondary filter assembly and tertiary filter assembly of vertical filter tank is provided with second deflector, the filter ring of primary filter assembly, secondary filter assembly and tertiary filter assembly is connected and fixed with the outer wall of rotatable sleeve, the inner wall of vertical filter tank is fixed with the radial cleaning brush body who is closely contacted with the lower surface of filter ring, the outer wall of vertical filter tank is equipped with purification gas outlet which is higher than tertiary filter assembly.

[0007] The multistage filtering equipment for alkane production, the primary filter assembly, the secondary filter assembly and the tertiary filter assembly are respectively composed of the hollow positioning plate connected and fixed with the inner wall of the vertical filter tank, the filter ring below the hollow positioning plate, and the positioning ring on the inner wall of the vertical filter tank and below the outer edge of the filter ring.

[0008] The multistage filtering equipment for alkane production, the first deflector and the second deflector are respectively inclined deflector plates, the inclination directions of the first deflector and the second deflector are opposite, the high side of the first deflector and the second deflector is provided with a flow guide port, the outer wall of the vertical filter tank is provided with a second ash discharge port corresponding to the low end of the first deflector, the outer wall of the vertical filter tank is provided with a third ash discharge port corresponding to the low end of the second deflector, the radial cleaning brush body in contact with the filter ring of the secondary filter assembly is above the low side of the first deflector, and the radial cleaning brush body in contact with the filter ring of the tertiary filter assembly is above the low side of the second deflector.

[0009] The multistage filtering equipment for alkane production, the rotating support structure includes an outer ring connected with the inner wall of the vertical filter tank, an inner ring concentric with the outer ring, a connecting rib group connected between the inner and outer rings, and a bearing fixed to the upper surface of the inner ring, the inner ring of the bearing is connected and fixed with the rotatable sleeve, and the rotatable sleeve is provided with a limiting skirt above the bearing.

[0010] The multi-stage filtering device for alkane production, the driving mechanism comprises a driven wheel fixed to the outer side of the upper end of the rotatable sleeve, a driving motor fixed to the top of the vertical filter tank, a driving wheel fixed to the output end of the driving motor and engaged with the driven wheel, and a sealing cavity built in the top of the vertical filter tank and surrounding the driven wheel and the driving wheel.

[0011] The multi-stage filtering device for alkane production, the bottom surface of the vertical filter tank is provided with a plurality of vibration motors.

[0012] The multi-stage filtering device for alkane production, the filter hole diameters of the filter screen rings of the first-stage filtering assembly, the second-stage filtering assembly and the third-stage filtering assembly are sequentially reduced.

[0013] The multi-stage filtering device for alkane production has the beneficial effects that:

[0014] 1. The filter screen layer does not need to be cleaned when the machine is stopped, when the flow of the purified gas outlet is greatly reduced, the driving mechanism is started to drive the rotatable sleeve to rotate, thereby driving the filter screen rings of the first-stage filtering assembly, the second-stage filtering assembly and the third-stage filtering assembly to rotate synchronously, in the rotating process, the dust on the lower surface of the filter screen ring is scraped off by the corresponding radial cleaning brush body, the blockage of the filter screen ring is improved, and the filtering efficiency is improved.

[0015] 2. The first-stage filtering assembly, the second-stage filtering assembly and the third-stage filtering assembly are arranged, the alkane gas sequentially passes through the first-stage filtering assembly, the second-stage filtering assembly and the third-stage filtering assembly for filtering operation, and the filtering effect is enhanced.

[0016] 3. The first ash discharge port, the second ash discharge port and the third ash discharge port can respectively lead out the accumulated dust, and the operation is convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is Figure 1 the enlarged view of A part in the figure.

[0019] In the figure: 1. air inlet, 2. driving motor, 3. driving wheel, 4. sealing cavity, 5. purified gas outlet, 6. third dust outlet, 7. second guide plate, 8. secondary filter assembly, 9. guide opening, 10. outer ring, 11. primary filter assembly, 12. vibration motor, 13. first dust outlet, 14. conical wind shield, 15. inner ring, 16. connecting rib group, 17. bearing, 18. second dust outlet, 19. first guide plate, 20. radial cleaning brush body, 21. guide opening, 22. rotatable sleeve, 23. tertiary filter assembly, 24. driven wheel, 25. air inlet vertical pipe, 26. hollow positioning plate, 27. filter ring, 28. positioning ring, 29. vertical filter tank. DETAILED DESCRIPTION

[0020] The utility model will be described in detail according to the drawings of the specification.

[0021] As Figure 1 , Figure 2 The multistage filtering equipment for alkane production includes a vertical filter tank 29.

[0022] The top of the vertical filter tank 29 is provided with an air inlet 1, and the center of the vertical filter tank 29 is provided with an air inlet vertical pipe 25 in communication with the air inlet 1. The lower end of the air inlet vertical pipe 25 extends to the bottom of the vertical filter tank 29, and the bottom of the vertical filter tank 29 is provided with a first dust outlet 13. A conical wind shield 14 is supported above the first dust outlet 13, and the conical wind shield 14 is close to the lower end of the air inlet vertical pipe 25.

[0023] The outer side of the air inlet vertical pipe 25 is provided with a rotatable sleeve 22, and the inside of the vertical filter tank 29 is provided with a rotating support structure corresponding to the rotatable sleeve 22 and a driving mechanism. In the embodiment, the rotating support structure includes an outer ring 10 connected with the inner wall of the vertical filter tank 29, an inner ring 15 concentric with the outer ring 10, a connecting rib group 16 connected between the outer ring 10 and the inner ring 15, and a bearing 17 fixed to the upper surface of the inner ring 15. The inner ring of the bearing 17 is connected and fixed with the rotatable sleeve 22. The rotatable sleeve 22 is provided with a limiting skirt above the bearing 17. The driving mechanism includes a driven wheel 24 fixed to the outer side of the upper end of the rotatable sleeve 22, a driving motor 2 fixed to the top of the vertical filter tank 29, a driving wheel 3 fixed to the output end of the driving motor 2 and engaged with the driven wheel 24. The top of the vertical filter tank 29 is built-in with a sealing cavity 4 wrapping the driven wheel 24 and the driving wheel 3.

[0024] The lower end of the rotatable sleeve 22 is provided with a first filtering assembly 11, the middle part of the rotatable sleeve 22 is provided with a second filtering assembly 8, and the upper part of the rotatable sleeve 22 is provided with a third filtering assembly 23. The filtering ring 27 of the first filtering assembly 11, the second filtering assembly 8 and the third filtering assembly 23 is fixedly connected with the outer wall of the rotatable sleeve 22, and the inner wall of the vertical filtering tank 29 is fixedly provided with a radial cleaning brush body 20 which is in close contact with the lower surface of the filtering ring 27. In the embodiment, the first filtering assembly 11, the second filtering assembly 8 and the third filtering assembly 23 are respectively composed of a hollow positioning plate 26 fixedly connected with the inner wall of the vertical filtering tank 29, a filtering ring 27 located below the hollow positioning plate 26, and a positioning ring 28 provided on the inner wall of the vertical filtering tank 29 and located below the outer edge of the filtering ring 27. The filtering ring 27 is composed of an inner ring, an outer ring and a filtering mesh layer provided between the inner ring and the outer ring. The inner ring is fixedly connected with the rotatable sleeve 22, and the center of the hollow positioning plate 26 is provided with an avoiding hole matched with the rotatable sleeve 22. The filtering hole diameter of the filtering ring 27 of the first filtering assembly 11, the second filtering assembly 8 and the third filtering assembly 23 is gradually reduced.

[0025] The vertical filtering tank 29 is provided with a first flow guide plate 19 between the first filtering assembly 11 and the second filtering assembly 8, and a second flow guide plate 7 between the second filtering assembly 8 and the third filtering assembly 23. In the embodiment, the first flow guide plate 19 and the second flow guide plate 7 are respectively inclined flow guide plates, the inclination directions of the first flow guide plate 19 and the second flow guide plate 7 are opposite, the high side of the first flow guide plate 19 and the high side of the second flow guide plate 7 are respectively provided with flow guide openings 9 and 21, the outer wall of the vertical filtering tank 29 is provided with a second ash discharge port 18 corresponding to the low end of the first flow guide plate 19, the outer wall of the vertical filtering tank 29 is provided with a third ash discharge port 6 corresponding to the low end of the second flow guide plate 7, the radial cleaning brush body 20 in contact with the filtering ring of the second filtering assembly 8 is located above the low side of the first flow guide plate 19, and the radial cleaning brush body 20 in contact with the filtering ring of the third filtering assembly 23 is located above the low side of the second flow guide plate 7. The outer wall of the vertical filtering tank 29 is provided with a purification gas outlet 5 which is higher than the third filtering assembly 23.

[0026] In the embodiment, the bottom surface of the vertical filtering tank 29 is provided with a plurality of vibration motors 12.

[0027] Working principle:

[0028] In use, the rich hydrocarbon gas enters into the gas inlet vertical pipe 25 through the gas inlet 1, and then flows out from the lower end of the gas inlet vertical pipe 25. Under the action of the conical baffle 14, the gas is dispersed and rises to the first filter assembly 11. After being filtered by the filter ring 27 of the first filter assembly 11, the gas continues to rise and goes to the first guide plate 19. After passing through the guide opening 9 of the first guide plate 19, the gas continues to rise and is filtered for the second time by the filter ring 27 of the second filter assembly 8. Then, the gas continues to rise and goes to the second guide plate 7. After passing through the guide opening 21 of the second guide plate 7, the gas continues to rise and is filtered for the third time by the filter ring 27 of the third filter assembly 23. After the three times of filtering, the gas is finally discharged through the purified gas outlet 5.

[0029] When the pressure in the vertical filter tank 29 is increased and the flow of the purified gas outlet is greatly reduced, the driving motor 2 is started to rotate the rotatable sleeve 22 through the driving wheel 3 and the driven wheel 24, so as to drive the filter ring 27 of the first filter assembly 11, the second filter assembly 8 and the third filter assembly 23 to rotate synchronously. In the rotating process, the dust on the lower surface of the filter ring 27 is scraped off by the corresponding radial cleaning brush body 20, so as to improve the blockage of the filter ring 27 and ensure the smooth operation of the filtering operation.

[0030] When the machine is stopped, the vibration motor 12 is started to collect the dust through the first dust discharge port 13, the second dust discharge port 18 and the third dust discharge port 6.

[0031] The above embodiments of the present application are described in detail, but the above description is only the preferred embodiments of the present application and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made within the scope of the present application should still belong to the scope of the present patent.

Claims

1. A multi-stage filtering device for alkane production, comprising a vertical filtering tank, a gas inlet being arranged at the top of the vertical filtering tank, characterized in that: The vertical filter tank is provided with an air inlet vertical pipe communicated with the air inlet, the lower end of the air inlet vertical pipe extends to the bottom of the vertical filter tank, the bottom of the vertical filter tank is provided with a first ash discharge port, and a conical wind baffle is supported above the first ash discharge port, the conical wind baffle is close to the lower end of the air inlet vertical pipe, the outer side of the air inlet vertical pipe is provided with a rotatable sleeve, the inside of the vertical filter tank is provided with a rotating support structure corresponding to the rotatable sleeve and a driving mechanism, a first-stage filter assembly is arranged between the lower end of the rotatable sleeve and the inner wall of the vertical filter tank, a second-stage filter assembly is arranged between the middle of the rotatable sleeve and the inner wall of the vertical filter tank, and a third-stage filter assembly is arranged between the upper part of the rotatable sleeve and the inner wall of the vertical filter tank, the vertical filter tank is provided with a first flow guide plate between the first-stage filter assembly and the second-stage filter assembly and a second flow guide plate between the second-stage filter assembly and the third-stage filter assembly, the filter screen ring of the first-stage filter assembly, the second-stage filter assembly and the third-stage filter assembly is fixedly connected with the outer wall of the rotatable sleeve, the inner wall of the vertical filter tank is fixedly provided with a radial cleaning brush body closely contacting the lower surface of the filter screen ring, and the outer wall of the vertical filter tank is provided with a purified gas outlet higher than the third-stage filter assembly.

2. The multi-stage filtering apparatus for alkane production according to claim 1, characterized by: The first-stage filter assembly, the second-stage filter assembly and the third-stage filter assembly are respectively composed of a hollow positioning plate fixedly connected with the inner wall of the vertical filter tank, a filter screen ring located below the hollow positioning plate and a positioning ring arranged on the inner wall of the vertical filter tank and located below the outer edge of the filter screen ring, the filter screen ring is composed of an inner ring, an outer ring and a filter screen layer arranged between the inner ring and the outer ring, the inner ring is fixedly connected with the rotatable sleeve, and the center of the hollow positioning plate is provided with an avoiding hole matched with the rotatable sleeve.

3. The multi-stage filtering apparatus for alkane production according to claim 1, characterized by: The first flow guide plate and the second flow guide plate are respectively inclined flow guide plates, the inclination directions of the first flow guide plate and the second flow guide plate are opposite, the high side of the first flow guide plate and the first flow guide plate is provided with a flow guide port, the outer wall of the vertical filter tank is provided with a second ash discharge port corresponding to the low end of the first flow guide plate, the outer wall of the vertical filter tank is provided with a third ash discharge port corresponding to the low end of the second flow guide plate, the radial cleaning brush body in contact with the filter screen ring of the second-stage filter assembly is located above the low side of the first flow guide plate, and the radial cleaning brush body in contact with the filter screen ring of the third-stage filter assembly is located above the low side of the second flow guide plate.

4. The multi-stage filtering apparatus for alkane production according to claim 1, characterized by: The rotating support structure comprises an outer ring connected with the inner wall of the vertical filter tank, an inner ring concentric with the outer ring, a connecting rib group connected between the inner ring and the outer ring and a bearing fixed on the upper surface of the inner ring, the inner ring of the bearing is fixedly connected with the rotatable sleeve, and the rotatable sleeve is provided with a limiting skirt above the bearing.

5. The multi-stage filtration apparatus for alkane production according to claim 1, characterized by: The driving mechanism comprises a driven wheel fixed on the outer side of the upper end of the rotatable sleeve, a driving motor fixed on the top of the vertical filter tank, a driving wheel fixed on the output end of the driving motor and engaged with the driven wheel, and a sealing cavity built-in in the top of the vertical filter tank and surrounding the driven wheel and the driving wheel.

6. The multi-stage filtration apparatus for alkane production according to claim 1, characterized by: The bottom surface of the vertical filter tank is provided with a plurality of vibration motors.

7. The multi-stage filtration apparatus for alkane production according to claim 1, characterized by: The filter screen rings of the first-stage filter assembly, the second-stage filter assembly and the third-stage filter assembly are provided with filter holes with diameters gradually decreasing.

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