Water-saving and emission-reducing turntable vacuum filter for wet-process phosphoric acid
By designing a turntable vacuum filter for wet phosphoric acid production, the problems of water resource waste and pollutant emissions during the preparation of wet phosphoric acid are solved, the recycling of water resources and efficient treatment of sewage are achieved, and the production cost and environmental impact are reduced.
Patent Information
- Application Number
- CN202411815307.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-03-14
AI Technical Summary
In the preparation of wet phosphoric acid, the prior art is difficult to effectively save water resources and reduce pollutant emissions.
A water-saving and emission-reducing turntable vacuum filter for wet phosphoric acid is designed, and the filter is filtered through the second water outlet pipe, and the first water outlet pipe is cleaned by the first water pump and the first water outlet pipe. Finally, the recycling of water resources and efficient discharge of sewage is achieved through the water outlet pipe and the second water extraction pipe.
It has achieved water conservation and sewage emissions in wet phosphoric acid production, reduced production costs and reduced environmental damage.
Smart Images
Figure CN119607683A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of a rotary disc vacuum filter for wet-process phosphoric acid with water saving and emission reduction, in particular to a rotary disc vacuum filter for wet-process phosphoric acid with water saving and emission reduction. Background Art
[0002] The wet phosphoric acid rotary disc vacuum filter for water saving and emission reduction is a kind of water resource recycling machine. The wet process production is to decompose phosphate rock powder with inorganic acid, separate crude phosphoric acid, and then purify it to obtain phosphoric acid products. The cost of wet phosphoric acid is 20% to 30% lower than that of thermal phosphoric acid. After purification by appropriate methods, the product purity is comparable to that of thermal phosphoric acid. The wet phosphoric acid process is in a dominant position in phosphoric acid production, reducing excessive industrial use of water resources, and has a good effect on reducing internal costs and reducing sewage discharge. On the one hand, it will cause damage to the environment, and on the other hand, because Reduce sewage discharge and thus hand over sewage discharge costs. In order to improve the effect of water saving and emission reduction, the outflow is filtered through the second outlet pipe into the filter, and the filtered liquid is passed through the first water pump using the first suction pipe and the first outlet pipe, and finally the phosphoric acid is cleaned using the cleaning spray pipe. The cleaned liquid is discharged under the action of the water suction trough using the outlet branch pipe, the fourth connecting pipe and the outlet main pipe. In order to improve drainage efficiency, the other side is pumped out through the second water pump and the second suction pipe, and the liquid flowing out from the second outlet pipe is supplemented in the water inlet pipe entering the filter slurry tank. Summary of the invention
[0003] 1. Technical issues to be resolved In view of the deficiencies of the prior art, the present invention provides a rotary disc vacuum filter for wet-process phosphoric acid that saves water and reduces emissions, thereby solving the problem of saving water resources and reducing pollutant emissions during the preparation of wet-process phosphoric acid.
[0004] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: A rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction, comprising: a base, a filter slurry tank is fixedly connected to the upper surface of the base, a first fixed plate is fixedly connected to the front surface of the base, a second support plate is fixedly connected to the upper surface of the first fixed plate, a driving motor is fixedly connected to the front surface of the second support plate, a rotating shaft is fixedly connected to the rear surface of the driving motor, an outer surface of the rotating shaft contacts the second support plate through a third hole, a rotating rod is fixedly connected to the rear surface of the rotating shaft, and a bearing is rotatably connected to the outer surface of the rotating rod; The outer surface of the bearing is fixedly connected with an exhaust groove through a bearing mounting groove, the front surface of the filter trough is fixedly connected with a first side plate, the rear surface of the first side plate is rotatably connected with a second fixed plate, the rear surface of the second fixed plate is rotatably connected with the exhaust groove, the rear surface of the second fixed plate is rotatably connected with a first suction trough, the rear surface of the second fixed plate is rotatably connected with a water suction trough, the rear surface of the second fixed plate is rotatably connected with a second suction trough, the rear surface of the second fixed plate is fixedly connected with an annular filter screen, the upper surface of the first fixed plate is fixedly connected with a filter, the interior of the filter is in contact with a first water suction pipe, the front surface of the first water suction pipe is fixedly connected with a first water pump, the front end of the first water pump is provided with a first water outlet pipe, the front end of the first water outlet pipe is provided with a cleaning spray pipe, and the rear surface of the filter trough is fixedly connected with the second side plate; A collecting box is fixedly connected to the side surface of the base, a second hole is provided on the front surface of the first side plate, the inner wall of the second hole is rotatably connected to the rotating rod, a water outlet branch is provided on the front surface of the water suction trough, a fourth connecting pipe is fixedly connected to the front surface of the water outlet branch, a water outlet main pipe is fixedly connected to the front surface of the fourth connecting pipe, a second water pumping pipe is fixedly connected to the front surface of the water outlet main pipe, a second water pumping pipe is fixedly connected to the lower surface of the second water pump, a water inlet pipe is fixedly connected to the front surface of the second water pump, the front surface of the water inlet pipe is in contact with the second side plate, a third support plate is fixedly connected to the side surface of the base, and an upper surface of the third support plate is fixedly connected to the second water pump.
[0005] Preferably, a support rod is fixedly connected to the lower surface of the first water pump, and the lower surface of the support rod is fixedly connected to the second support plate.
[0006] Preferably, a first hole is provided on the front surface of the first side plate, and an inner wall of the first hole is in contact with the first water outlet pipe.
[0007] Preferably, a second water outlet pipe is provided at the front end of the filter, and the inner wall of the second water outlet pipe is in contact with the first side plate.
[0008] Preferably, the outer surface of the first liquid suction trough is rotatably connected to the annular filter screen, and the outer surface of the water suction trough is rotatably connected to the annular filter screen.
[0009] Preferably, the outer surface of the bearing is fixedly connected to the first liquid suction groove through the bearing mounting groove, and the outer surface of the bearing is fixedly connected to the water suction groove through the bearing mounting groove.
[0010] Preferably, an air intake branch pipe is arranged on the front surface of the exhaust groove, a first connecting pipe is fixedly connected to the front surface of the air intake branch pipe, and an air intake main pipe is fixedly connected to the front surface of the first connecting pipe.
[0011] Preferably, a first vacuum branch pipe is provided on the front surface of the first liquid suction groove, a second connecting pipe is fixedly connected to the front surface of the first vacuum branch pipe, and a first vacuum main pipe is fixedly connected to the front surface of the second connecting pipe.
[0012] Preferably, a second vacuum branch pipe is fixedly connected to the front surface of the second liquid suction groove, a third connecting pipe is fixedly connected to the front surface of the second vacuum branch pipe, and a second vacuum main pipe is fixedly connected to the front surface of the third connecting pipe.
[0013] Preferably, a discharge trough is provided on the side surface of the filter trough, a first support plate is fixedly connected to the inner wall of the discharge trough, a cutting knife is fixedly connected to the upper surface of the first support plate, and an outer surface of the cutting knife is in contact with the annular filter screen.
[0014] (III) Beneficial effects The present invention provides a rotary disc vacuum filter for wet-process phosphoric acid that saves water and reduces emissions. It has the following beneficial effects: in order to improve the effect of water saving and emission reduction, the outflow is filtered by flowing into the filter through the second water outlet pipe, and the filtered liquid is passed through the first water pump, the first water pump pipe and the first water outlet pipe are used, and finally the phosphoric acid is cleaned by the cleaning spray pipe. The cleaned liquid is discharged under the action of the water suction tank and the water outlet branch pipe, the fourth connecting pipe and the water outlet main pipe. In order to improve the drainage efficiency, the other side is pumped out through the second water pump and the second water pump pipe, and the liquid flowing out from the second water outlet pipe is supplemented in the water inlet pipe entering the filter slurry tank.
[0015] The wet-process phosphoric acid rotary vacuum filter for water-saving and emission-reduction can reduce excessive industrial use of water resources, which has a good effect on reducing internal costs and reducing sewage discharge. On the one hand, it can reduce damage to the environment, and on the other hand, it can reduce sewage discharge costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram of the filtrate circulation structure of the present invention; Figure 4 It is a schematic diagram of the collecting device of the present invention; Figure 5 It is a schematic diagram of the internal details of the present invention; Figure 6 It is a schematic diagram of the driving structure of the present invention; Figure 7 It is a schematic diagram of the sewage extraction structure of the present invention.
[0017] Among them, 1. base; 2. first fixed plate; 3. filter; 4. first water extraction pipe; 5. first water pump; 6. first water outlet pipe; 7. cleaning spray pipe; 8. first side plate; 9. first hole; 10. second water outlet pipe; 11. support rod; 12. collection box; 13. filter slurry tank; 14. discharge tank; 15. first support plate; 16. cutter; 17. second support plate; 18. second hole; 19. bearing; 20. rotating shaft; 21. rotating rod; 22. bearing mounting groove; 23. third hole; 24. drive motor; 25. annular filter; 26. Exhaust groove; 27, air intake branch pipe; 28, first connecting pipe; 29, air intake main pipe; 30, first vacuum branch pipe; 31, second connecting pipe; 32, first vacuum main pipe; 33, first suction trough; 34, second vacuum branch pipe; 35, third connecting pipe; 36, second vacuum main pipe; 37, water outlet branch pipe; 38, water suction trough; 39, fourth connecting pipe; 40, water outlet main pipe; 41, second water pump; 42, second water pump; 43, water inlet pipe; 44, third support plate; 45, second side plate; 46, second suction trough; 47, second fixed plate. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0019] like Figure 1-7 As shown, an embodiment of the present invention provides a rotary disc vacuum filter for wet-process phosphoric acid that saves water and reduces emissions, including a base 1, an upper surface of the base 1 is fixedly connected to a filter trough 13, a front surface of the base 1 is fixedly connected to a first fixed plate 2, an upper surface of the first fixed plate 2 is fixedly connected to a second support plate 17, a front surface of the second support plate 17 is fixedly connected to a drive motor 24, a rear surface of the drive motor 24 is fixedly connected to a rotating shaft 20, an outer surface of the rotating shaft 20 is in contact with the second support plate 17 through a third hole 23, a rear surface of the rotating shaft 20 is fixedly connected to a rotating rod 21, and an outer surface of the rotating rod 21 is rotatably connected to a bearing 19.
[0020] The outer surface of the bearing 19 is fixedly connected with the exhaust groove 26 through the bearing mounting groove 22, the front surface of the filter slurry tank 13 is fixedly connected with the first side plate 8, the rear surface of the first side plate 8 is rotatably connected with the second fixed plate 47, the rear surface of the second fixed plate 47 is rotatably connected with the exhaust groove 26, the rear surface of the second fixed plate 47 is rotatably connected with the first suction groove 33, the rear surface of the second fixed plate 47 is rotatably connected with the suction groove 38, the rear surface of the second fixed plate 47 is rotatably connected with the second suction groove 46, the rear surface of the second fixed plate 47 is fixedly connected with the annular filter screen 25, the upper surface of the first fixed plate 2 is fixedly connected with the filter 3, the interior of the filter 3 is in contact with the first water pumping pipe 4, the front surface of the first water pumping pipe 4 is fixedly connected with the first water pump 5, the front end of the first water pump 5 is provided with a first water outlet pipe 6, the front end of the first water outlet pipe 6 is provided with a cleaning spray pipe 7, and the rear surface of the filter slurry tank 13 is fixedly connected with the second side plate 45.
[0021] The side surface of the base 1 is fixedly connected with a collecting box 12, the front surface of the first side plate 8 is provided with a second hole 18, the inner wall of the second hole 18 is rotatably connected with the rotating rod 21, the front surface of the water suction groove 38 is provided with a water outlet branch pipe 37, the front surface of the water outlet branch pipe 37 is fixedly connected with a fourth connecting pipe 39, the front surface of the fourth connecting pipe 39 is fixedly connected with a water outlet main pipe 40, the front surface of the water outlet main pipe 40 is fixedly connected with a second water pumping pipe 41, the lower surface of the second water pumping pipe 41 is fixedly connected with a second water pump 42, the front surface of the second water pump 42 is fixedly connected with a water inlet pipe 43, and the water inlet pipe 43 is fixedly connected with the second water pump 42. The front surface of the pipe 43 contacts the second side plate 45, the side surface of the base 1 is fixedly connected with the third support plate 44, the upper surface of the third support plate 44 is fixedly connected with the second water pump 42, the lower surface of the first water pump 5 is fixedly connected with the support rod 11, the lower surface of the support rod 11 is fixedly connected with the second support plate 17, the front surface of the first side plate 8 is provided with a first hole 9, the inner wall of the first hole 9 contacts the first water outlet pipe 6, the front end of the filter 3 is provided with a second water outlet pipe 10, the inner wall of the second water outlet pipe 10 contacts the first side plate 8, the outer surface of the first suction groove 33 contacts the annular filter screen 2 5 is rotatably connected, the outer surface of the water suction groove 38 is rotatably connected to the annular filter screen 25, the outer surface of the bearing 19 is fixedly connected to the first liquid suction groove 33 through the bearing mounting groove 22, the outer surface of the bearing 19 is fixedly connected to the water suction groove 38 through the bearing mounting groove 22, the front surface of the exhaust groove 26 is provided with an intake branch pipe 27, the front surface of the intake branch pipe 27 is fixedly connected to the first connecting pipe 28, the front surface of the first connecting pipe 28 is fixedly connected to the intake main pipe 29, the front surface of the first liquid suction groove 33 is provided with a first vacuum branch pipe 30, the front surface of the first vacuum branch pipe 30 is fixedly connected to A second connecting pipe 31 is connected, and a first vacuum main pipe 32 is fixedly connected to the front surface of the second connecting pipe 31, a second vacuum branch pipe 34 is fixedly connected to the front surface of the second suction trough 46, a third connecting pipe 35 is fixedly connected to the front surface of the second vacuum branch pipe 34, and a second vacuum main pipe 36 is fixedly connected to the front surface of the third connecting pipe 35. A discharge trough 14 is provided on the side surface of the filter slurry trough 13, and a first support plate 15 is fixedly connected to the inner wall of the discharge trough 14, and a cutting knife 16 is fixedly connected to the upper surface of the first support plate 15, and an outer surface of the cutting knife 16 is in contact with the annular filter screen 25.
[0022] Working principle: The external vacuum device drives the second vacuum main pipe 36, the second connecting pipe 31, the first vacuum branch pipe 30, the second vacuum branch pipe 34, the first vacuum main pipe 32, and the third connecting pipe 35 to vacuum the first liquid suction groove 33 and the second liquid suction groove 46, so that the external annular filter 25 absorbs and filters the phosphoric acid. When the annular filter 25 rotates under the action of the driving motor 24 driving the rotating shaft 20 and the rotating rod 21 and the second fixed plate 47 that is fixedly connected, the phosphoric acid adsorbed is moved to the upper end of the water absorption groove 38. A cleaning spray pipe 7 is arranged just above the filter. A second water outlet pipe 10 is provided at the side end of the slurry tank 13 to flow the internal liquid into the filter 3, and under the action of the first water pump 5 at the upper end, the liquid filtered by the filter 3 is finally cleaned from the phosphoric acid below from the cleaning spray pipe 7 through the first pumping pipe 4 and the first water outlet pipe 6. The cleaned liquid falls into the water suction trough 38. The liquid is pumped out from the water outlet main pipe 40, the fourth connecting pipe 39 and the water outlet branch pipe 37 under the action of the second water pump 42 and the second pumping pipe 41, and flows into the filter slurry tank 13 through the water inlet pipe 43 provided at the front end of the second water pump 42 to replenish the liquid capacity in the filter slurry tank 13.
[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction, characterized in that: include: A base (1), wherein the upper surface of the base (1) is fixedly connected to a slurry filter tank (13), the front surface of the base (1) is fixedly connected to a first fixing plate (2), the upper surface of the first fixing plate (2) is fixedly connected to a second support plate (17), the front surface of the second support plate (17) is fixedly connected to a drive motor (24), the rear surface of the drive motor (24) is fixedly connected to a rotating shaft (20), the outer surface of the rotating shaft (20) is in contact with the second support plate (17) via a third hole (23), the rear surface of the rotating shaft (20) is fixedly connected to a rotating rod (21), and the outer surface of the rotating rod (21) is rotatably connected to a bearing (19); The outer surface of the bearing (19) is fixedly connected to an exhaust groove (26) via a bearing mounting groove (22); the front surface of the filter slurry tank (13) is fixedly connected to a first side plate (8); the rear surface of the first side plate (8) is rotatably connected to a second fixed plate (47); the rear surface of the second fixed plate (47) is rotatably connected to the exhaust groove (26); the rear surface of the second fixed plate (47) is rotatably connected to a first liquid suction groove (33); the rear surface of the second fixed plate (47) is rotatably connected to a water suction groove (38); the rear surface of the second fixed plate (47) is rotatably connected to a second liquid suction groove (38); The second fixing plate (47) is fixedly connected to a second liquid suction trough (46); the rear surface of the second fixing plate (47) is fixedly connected to an annular filter screen (25); the upper surface of the first fixing plate (2) is fixedly connected to a filter (3); the interior of the filter (3) is in contact with a first water pump (4); the front surface of the first water pump (4) is fixedly connected to a first water pump (5); a first water outlet pipe (6) is provided at the front end of the first water pump (5); a cleaning spray pipe (7) is provided at the front end of the first water outlet pipe (6); and the rear surface of the filter trough (13) is fixedly connected to a second side plate (45); A collecting box (12) is fixedly connected to the side surface of the base (1); a second hole (18) is provided on the front surface of the first side plate (8); the inner wall of the second hole (18) is rotatably connected to the rotating rod (21); a water outlet branch pipe (37) is provided on the front surface of the water suction groove (38); a fourth connecting pipe (39) is fixedly connected to the front surface of the water outlet branch pipe (37); a water outlet main pipe (40) is fixedly connected to the front surface of the fourth connecting pipe (39); a second water pumping pipe (41) is fixedly connected to the front surface of the water outlet main pipe (40); a second water pumping pipe (42) is fixedly connected to the lower surface of the second water pump (41); a water inlet pipe (43) is fixedly connected to the front surface of the second water pump (42); the front surface of the water inlet pipe (43) is in contact with the second side plate (45); a third support plate (44) is fixedly connected to the side surface of the base (1); and the upper surface of the third support plate (44) is fixedly connected to the second water pump (42).
2. A rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: A support rod (11) is fixedly connected to the lower surface of the first water pump (5), and the lower surface of the support rod (11) is fixedly connected to the second support plate (17).
3. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: A first hole (9) is provided on the front surface of the first side plate (8), and an inner wall of the first hole (9) is in contact with the first water outlet pipe (6).
4. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: A second water outlet pipe (10) is provided at the front end of the filter (3), and the inner wall of the second water outlet pipe (10) is in contact with the first side plate (8).
5. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: The outer surface of the first liquid absorption groove (33) is rotatably connected to the annular filter screen (25), and the outer surface of the water absorption groove (38) is rotatably connected to the annular filter screen (25).
6. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: The outer surface of the bearing (19) is fixedly connected to the first liquid absorption groove (33) via the bearing installation groove (22), and the outer surface of the bearing (19) is fixedly connected to the water absorption groove (38) via the bearing installation groove (22).
7. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: An intake branch pipe (27) is provided on the front surface of the exhaust groove (26), a first connecting pipe (28) is fixedly connected to the front surface of the intake branch pipe (27), and an intake main pipe (29) is fixedly connected to the front surface of the first connecting pipe (28).
8. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: A first vacuum branch pipe (30) is provided on the front surface of the first liquid suction groove (33); a second connecting pipe (31) is fixedly connected to the front surface of the first vacuum branch pipe (30); and a first vacuum main pipe (32) is fixedly connected to the front surface of the second connecting pipe (31).
9. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: The front surface of the second liquid suction groove (46) is fixedly connected to a second vacuum branch pipe (34), the front surface of the second vacuum branch pipe (34) is fixedly connected to a third connecting pipe (35), and the front surface of the third connecting pipe (35) is fixedly connected to a second vacuum main pipe (36).
10. The rotary disc vacuum filter for wet-process phosphoric acid for water saving and emission reduction according to claim 1, characterized in that: A discharge trough (14) is provided on the side surface of the slurry filter trough (13); a first support plate (15) is fixedly connected to the inner wall of the discharge trough (14); a cutting knife (16) is fixedly connected to the upper surface of the first support plate (15); and an outer surface of the cutting knife (16) is in contact with the annular filter screen (25).