Filtering device at inlet of desulfurization gypsum cyclone

Abstract

The utility model belongs to the technical field of filtering devices, particularly relates to an inlet filtering device of a desulfurization gypsum cyclone, and aims to solve the problems that when an existing inlet filtering device of the desulfurization gypsum cyclone is used, a filter screen cannot be cleaned in the filtering process, solid impurities are easily attached to the filter screen in the filtering process, and the filter screen cannot be cleaned. In order to solve the problems that in the prior art, the filter efficiency of a filter screen is gradually reduced, and solid impurities cannot be conveniently cleaned and collected after filtration, the utility model provides the following scheme that the device comprises a shell, four supporting legs are fixedly mounted at the bottom of the shell, a fixing plate is fixedly mounted on one side of the shell, and a motor is fixedly mounted on the fixing plate; and an output shaft of the motor is fixedly connected with a transmission shaft. The filtering device is reasonable in structure, the filter screen can be cleaned in the filtering process, solid impurities on the filter screen can be conveniently cleaned and collected after filtering, and the filtering efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to an inlet filtering device for a desulfurized gypsum cyclone. Background Art

[0002] Gypsum cyclone can also be called hydrocyclone separator. It is a hydrocyclone specially used in wet limestone-gypsum flue gas desulfurization process. The gypsum cyclone is located between the absorption tower and the vacuum dehydration belt conveyor in the flue gas desulfurization system. The gypsum cyclone is responsible for the preliminary separation of various by-products discharged from the absorption tower. The concentrated solid-liquid mixture after separation will be transported to the vacuum belt dehydrator for secondary dehydration. If the material entering the gypsum cyclone contains too many solid impurities, it will seriously affect the working efficiency and state of the gypsum cyclone.

[0003] However, when the existing desulfurization gypsum cyclone inlet filter device is in use, the filter screen cannot be cleaned during the filtration process, which easily causes solid impurities to adhere to the filter screen during the filtration process, causing the filtration efficiency of the filter screen to gradually decrease, and the solid impurities cannot be conveniently cleaned and collected after filtration. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing desulfurization gypsum cyclone inlet filter device, that is, the filter screen cannot be cleaned during the filtration process when in use, solid impurities are easily attached to the filter screen during the filtration process, the filtration efficiency of the filter screen is gradually reduced, and the solid impurities cannot be conveniently cleaned and collected after filtration. A desulfurization gypsum cyclone inlet filter device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A desulfurized gypsum cyclone inlet filter device comprises a shell, four supporting legs are fixedly mounted on the bottom of the shell, a fixing plate is fixedly mounted on one side of the shell, a motor is fixedly mounted on the fixing plate, a transmission shaft is fixedly connected to the output shaft of the motor, a first bevel gear is fixedly mounted on the transmission shaft, and a stirring mechanism and a cleaning mechanism are arranged in the shell.

[0007] Preferably, the cleaning mechanism includes a protective shell, and the protective shell is fixedly installed in the shell, a reciprocating screw is fixedly installed on the transmission shaft, and the reciprocating screw is located in the protective shell, and a moving block is threadedly installed on the reciprocating screw.

[0008] Preferably, a connecting rod is fixedly installed at the bottom of the moving block, and the connecting rod is slidably installed at the bottom of the protective shell, a scraper is fixedly installed at the bottom of the connecting rod, a filter is fixedly installed in the shell, and the bottom of the scraper is in contact with the filter, and a discharge pipe is fixedly installed at the bottom of the shell.

[0009] Preferably, a push rod motor is fixedly mounted on the top of the shell, and a lifting plate is fixedly mounted on the output shaft of the push rod motor, discharge ports are opened on both sides of the shell, and grooves are provided on the tops of the two discharge ports.

[0010] Preferably, baffles are slidably installed in the two grooves, and lifting rods are fixedly installed on the tops of the two baffles. The tops of the two lifting rods are fixedly connected to the bottoms of the lifting plates. Collection boxes are fixedly installed on both sides of the shell, and the two collection boxes are respectively matched with the two discharge ports.

[0011] Preferably, the stirring mechanism includes two support plates, and the two support plates are fixedly mounted on one side of the shell, a first rotating shaft is rotatably mounted on the two support plates, and a second bevel gear is fixedly mounted on the first rotating shaft, and the first bevel gear and the second bevel gear are meshed.

[0012] Preferably, a first sprocket is fixedly mounted on the first rotating shaft, a second rotating shaft is rotatably mounted on the top of the shell, and a second sprocket is fixedly mounted on the second rotating shaft, a chain is meshingly connected between the first sprocket and the second sprocket, a stirring roller is fixedly mounted on the second rotating shaft, and the stirring roller is located in the shell, a feed pipe is fixedly mounted on the top of the shell, and a valve is provided on the feed pipe.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] (1) Since the present invention is provided with a stirring mechanism, the material can be stirred during the filtration process, thereby making the filtration speed faster.

[0015] (2) Since the cleaning mechanism is provided in this scheme, the filter screen can be cleaned during filtration to prevent solid impurities from directly adhering to the filter screen during the filtration process and reducing the filtration efficiency. After a period of filtration, the solid impurities on the filter screen can be cleaned after the valve is closed.

[0016] The utility model has a reasonable structure, can clean the filter screen during the filtering process, and can conveniently clean and collect solid impurities on the filter screen after filtering, and has high filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a desulfurized gypsum cyclone inlet filtering device proposed by the utility model;

[0018] Figure 2 This is a schematic structural diagram of part A of a desulfurized gypsum cyclone inlet filter device proposed by the utility model;

[0019] Figure 3This is a schematic structural diagram of part B of a desulfurization gypsum cyclone inlet filter device proposed by the utility model.

[0020] In the figure: 1. shell; 2. support leg; 3. fixed plate; 4. motor; 5. transmission shaft; 6. first bevel gear; 7. protective shell; 8. reciprocating screw; 9. moving block; 10. connecting rod; 11. scraper; 12. filter; 13. discharge pipe; 14. push rod motor; 15. lifting plate; 16. lifting rod; 17. baffle; 18. collecting box; 19. support plate; 20. first rotating shaft; 21. second bevel gear; 22. first sprocket; 23. second rotating shaft; 24. second sprocket; 25. chain; 26. stirring roller; 27. feeding pipe; 28. valve. DETAILED DESCRIPTION

[0021] The technical solution of this embodiment will be clearly and completely described below in conjunction with the drawings in this embodiment. Obviously, the described embodiment is only a part of this embodiment, rather than all of the embodiments.

[0022] Embodiment 1

[0023] Reference Figure 1-Figure 3 A desulfurized gypsum cyclone inlet filtering device comprises a shell 1, four supporting legs 2 are fixedly mounted on the bottom of the shell 1, a fixing plate 3 is fixedly mounted on one side of the shell 1, a motor 4 is fixedly mounted on the fixing plate 3, a transmission shaft 5 is fixedly connected to the output shaft of the motor 4, a first bevel gear 6 is fixedly mounted on the transmission shaft 5, and a stirring mechanism and a cleaning mechanism are arranged in the shell 1.

[0024] In this embodiment, the cleaning mechanism includes a protective shell 7, and the protective shell 7 is fixedly installed in the shell 1, a reciprocating screw 8 is fixedly installed on the transmission shaft 5, and the reciprocating screw 8 is located in the protective shell 7, and a moving block 9 is threadedly installed on the reciprocating screw 8.

[0025] In this embodiment, a connecting rod 10 is fixedly installed at the bottom of the moving block 9, and the connecting rod 10 is slidably installed at the bottom of the protective shell 7, a scraper 11 is fixedly installed at the bottom of the connecting rod 10, a filter screen 12 is fixedly installed in the shell 1, and the bottom of the scraper 11 is in contact with the filter screen 12, and a discharge pipe 13 is fixedly installed at the bottom of the shell 1.

[0026] In this embodiment, a push rod motor 14 is fixedly mounted on the top of the shell 1, and a lifting plate 15 is fixedly mounted on the output shaft of the push rod motor 14. Discharge ports are opened on both sides of the shell 1, and grooves are provided on the tops of the two discharge ports.

[0027] In this embodiment, baffles 17 are slidably installed in the two grooves, and lifting rods 16 are fixedly installed on the tops of the two baffles 17. The tops of the two lifting rods 16 are fixedly connected to the bottoms of the lifting plates 15. Collection boxes 18 are fixedly installed on both sides of the shell 1, and the two collection boxes 18 are respectively matched with the two discharge ports.

[0028] In this embodiment, the stirring mechanism includes two support plates 19, and the two support plates 19 are fixedly installed on one side of the shell 1. A first rotating shaft 20 is rotatably installed on the two support plates 19, and a second bevel gear 21 is fixedly installed on the first rotating shaft 20. The first bevel gear 6 and the second bevel gear 21 are meshed.

[0029] In this embodiment, a first sprocket 22 is fixedly mounted on the first rotating shaft 20, a second rotating shaft 23 is rotatably mounted on the top of the shell 1, and a second sprocket 24 is fixedly mounted on the second rotating shaft 23, a chain 25 is meshingly connected between the first sprocket 22 and the second sprocket 24, a stirring roller 26 is fixedly mounted on the second rotating shaft 23, and the stirring roller 26 is located in the shell 1, a feed pipe 27 is fixedly mounted on the top of the shell 1, and a valve 28 is provided on the feed pipe 27.

[0030] Working principle: first, open the valve 28, introduce the material into the shell 1 through the feed pipe 27, start the motor 4, the motor 4 drives the transmission shaft 5 to rotate through the output shaft, the transmission shaft 5 drives the reciprocating screw 8 to rotate, the reciprocating screw 8 drives the moving block 9 to rotate, the moving block 9 drives the scraper 11 to move through the connecting rod 10, and the solid impurities deposited on the filter screen 12 are scraped off to prevent them from affecting the filtration efficiency.

[0031] Secondly, during the scraping process, the transmission shaft 5 drives the first rotating shaft 20 to rotate through the first bevel gear 6 and the second bevel gear 21, the first rotating shaft 20 drives the first sprocket 22 to rotate, the first sprocket 22 drives the second sprocket 24 to rotate through the chain 25, the second sprocket 24 drives the second rotating shaft 23 to rotate, and the second rotating shaft 23 drives the stirring roller 26 to rotate to stir the material.

[0032] Finally, after filtering for a period of time, the valve 28 is closed and the push rod motor 14 is started. The push rod motor 14 drives the lifting plate 15 to move through the output shaft, and the lifting plate 15 drives the two baffles 17 to move through the two lifting rods 16. At the same time, the scraper 11 moves back and forth, pushing the solid impurities on the filter screen 12 into the two collection boxes 18 through the two discharge ports.

[0033] Embodiment 2

[0034] The difference between the second embodiment and the first embodiment is that U-shaped sealing strips are fixedly installed on the outer sides of the two baffles 17 to prevent the material from leaking out.

[0035] The above is only a preferred specific implementation of this embodiment, but the protection scope of this embodiment is not limited to this. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of this embodiment within the technical scope disclosed in this embodiment, which should be covered by the protection scope of this embodiment.

Claims

1. A desulfurized gypsum cyclone inlet filter device, comprising a housing (1), characterized in that: Four supporting legs (2) are fixedly mounted on the bottom of the housing (1), and a fixing plate (3) is fixedly mounted on one side of the housing (1), a motor (4) is fixedly mounted on the fixing plate (3), and a transmission shaft (5) is fixedly connected to the output shaft of the motor (4), and a first bevel gear (6) is fixedly mounted on the transmission shaft (5), and a stirring mechanism and a cleaning mechanism are provided in the housing (1), and the cleaning mechanism includes a protective shell (7), and the protective shell (7) is fixedly mounted in the housing (1), and a first bevel gear (6) is fixedly mounted on the transmission shaft (5). A reciprocating screw (8) is installed, and the reciprocating screw (8) is located in the protective shell (7); a moving block (9) is threadedly installed on the reciprocating screw (8); a connecting rod (10) is fixedly installed at the bottom of the moving block (9), and the connecting rod (10) is slidably installed at the bottom of the protective shell (7); a scraper (11) is fixedly installed at the bottom of the connecting rod (10); a filter screen (12) is fixedly installed in the shell (1), and the bottom of the scraper (11) is in contact with the filter screen (12); and a discharge pipe (13) is fixedly installed at the bottom of the shell (1).

2. A desulfurization gypsum cyclone inlet filter device according to claim 1, characterized in that: A push rod motor (14) is fixedly mounted on the top of the shell (1), and a lifting plate (15) is fixedly mounted on the output shaft of the push rod motor (14). Discharge ports are provided on both sides of the shell (1), and grooves are provided on the tops of the two discharge ports.

3. A desulfurization gypsum cyclone inlet filter device according to claim 2, characterized in that: Baffles (17) are slidably mounted in the two grooves, and lifting rods (16) are fixedly mounted on the tops of the two baffles (17), and the tops of the two lifting rods (16) are fixedly connected to the bottom of the lifting plate (15). Collection boxes (18) are fixedly mounted on both sides of the shell (1), and the two collection boxes (18) are respectively matched with the two discharge ports.

4. A desulfurization gypsum cyclone inlet filter device according to claim 3, characterized in that: The stirring mechanism comprises two support plates (19), and the two support plates (19) are fixedly mounted on one side of the housing (1); a first rotating shaft (20) is rotatably mounted on the two support plates (19), and a second bevel gear (21) is fixedly mounted on the first rotating shaft (20); the first bevel gear (6) and the second bevel gear (21) are meshed.

5. A desulfurization gypsum cyclone inlet filter device according to claim 4, characterized in that: A first sprocket (22) is fixedly mounted on the first rotating shaft (20), a second rotating shaft (23) is rotatably mounted on the top of the shell (1), and a second sprocket (24) is fixedly mounted on the second rotating shaft (23), a chain (25) is meshedly connected between the first sprocket (22) and the second sprocket (24), a stirring roller (26) is fixedly mounted on the second rotating shaft (23), and the stirring roller (26) is located in the shell (1), and a feed pipe (27) is fixedly mounted on the top of the shell (1), and a valve (28) is provided on the feed pipe (27).

Images