Circulating fluidized bed for crystallization and granulation

Abstract

The utility model discloses a circulating fluidized bed for crystallization and granulation, and relates to the technical field of circulating fluidized beds for crystallization and granulation. The device comprises a reaction tower, a base is fixedly mounted at the bottom of the reaction tower, a wastewater pipe is mounted at the bottom of the reaction tower, two symmetrically arranged medicament pipes are arranged at the bottom of the reaction tower and above the wastewater pipe, and a drain pipe is mounted at the top of the reaction tower. An upper sealing plate is mounted at the top of the reaction tower, a return pipe is arranged between the top and the bottom of the reaction tower, an aeration device is mounted between the wastewater pipe and the medicament pipes in the reaction tower, and a fixing sleeve is fixedly mounted above the two medicament pipes in the reaction tower; the honeycomb grating plate and the aeration device are arranged in the reaction tower, so that chemicals added in the reaction tower can be uniformly distributed, uniform crystallization is facilitated, the efficiency of the chemicals is improved, the contact time of gas and particles in waste liquid can be prolonged by matching with the repeatedly rotating baffle plate, and the reaction effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to crystallization granulation circulating fluidized bed technical field, concretely is a kind of crystallization granulation circulating fluidized bed. BACKGROUND

[0002] Crystallization granulation circulating fluidized bed utilizes induced crystallization heterogeneous nucleation principle, realizes the removal of calcium ion of circulating sewage, and crystallization granulation circulating fluidized bed adopts integrated design idea, including scale inhibitor broken stability function, can substantially precipitate and intercept suspended solids in circulating water sewage, provide more clean water for subsequent reaction;Upper and lower filter units can be cleaned respectively, without shutdown, circulating sewage passes through induced crystallization reaction, can substantially reduce the concentration of calcium ion in water body;The overall reaction efficiency is poor when the crystallization granulation circulating fluidized bed reacts and crystallizes ions in medicament and wastewater, and the effect of medicament cannot be well played.

[0003] For the above problems, the inventors propose a crystallization granulation circulating fluidized bed to solve the above problems. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model aims to provide a crystallization granulation circulating fluidized bed.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a crystallization granulation circulating fluidized bed, comprising a reaction tower, a base is fixedly installed at the bottom of the reaction tower, a wastewater pipe is installed at the bottom of the reaction tower, a first medicament pipe and a second medicament pipe are installed above the wastewater pipe at the bottom of the reaction tower, a drain pipe is installed at the top of the reaction tower, an upper sealing plate is installed at the top of the reaction tower, a reflux pipe is arranged between the top and bottom of the reaction tower, a gas explosion device is installed between the wastewater pipe and the medicament pipe in the reaction tower, a fixed sleeve is fixedly installed above the two medicament pipes in the reaction tower, a vertical honeycomb grille plate is fixedly installed in the fixed sleeve, a horizontal plate is fixedly installed above the honeycomb grille plate in the reaction tower, two symmetrical rotating rods are rotatably installed in the horizontal plate, a shielding plate is fixedly connected to the rotating rods, and a driving device is arranged between the horizontal plate and the rotating rods.

[0006] Preferably, the driving device comprises a connecting rod, the connecting rod is rotatably inserted in one end of the horizontal plate, the connecting rod is connected with the two rotating rods through the bevel gears arranged in meshing mode, the end of the connecting rod away from the rotating rod penetrates through the reaction tower and is fixedly provided with a driving gear, a toothed plate is arranged below the driving gear in meshing mode, a movable plate vertically arranged is fixedly arranged on the lower surface of the toothed plate, a movable slot is arranged through the movable plate, a push block is movably inserted in the movable slot, and a rotating plate is fixedly arranged at the end of the push block away from the reaction tower.

[0007] Compared with the prior art, the utility model has the advantages that:

[0008] The honeycomb grating plate and the gas explosion device arranged in the utility model can uniformly distribute the medicine in the reaction tower, are favorable for uniform crystallization, improve the medicine efficiency, and can prolong the time of the gas contacting the particles in the waste liquid by cooperating with the repeatedly rotating shielding plate, and further improve the reaction effect. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by the person skilled in the art without the creative labor on the premise of the drawings.

[0010] Figure 1 It is the whole structure schematic diagram of the utility model.

[0011] Figure 2 It is the internal structure schematic diagram of the reaction tower of the utility model.

[0012] Figure 3 It is the whole structure schematic diagram of the utility model Figure 2 It is the enlarged structure schematic diagram of A in the utility model.

[0013] Figure 4 It is the horizontal plate structure schematic diagram of the utility model.

[0014] In the drawing: 1, reaction tower;11, waste water pipe;12, first medicine pipe;13, drain pipe;14, reflux pipe;15, gas explosion device;16, second medicine pipe;2, fixed sleeve;21, honeycomb grating plate;22, shielding plate;23, horizontal plate;24, connecting rod;25, rotating rod;26, bevel gear;3, driving gear;31, toothed plate;32, movable plate;33, movable slot;34, push block;35, rotating plate;36, rotating shaft;37, driving motor;4, fixed frame;41, horizontal rod;5, base;6, upper sealing plate. DETAILED DESCRIPTION

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figures 1-4 As shown, this utility model provides a crystallization granulation circulating fluidized bed, including a reaction tower 1. A base 5 is fixedly installed at the bottom of the reaction tower 1. A wastewater pipe 11 is installed at the bottom of the reaction tower 1. A first reagent pipe 12 and a second reagent pipe 16 are installed above the wastewater pipe 11 at the bottom of the reaction tower 1. A drain pipe 13 is installed at the top of the reaction tower 1. An upper sealing plate 6 is installed at the top of the reaction tower 1. A return pipe 14 is provided between the top and bottom of the reaction tower 1. An aeration device 15 is installed inside the reaction tower 1 between the wastewater pipe 11 and the reagent pipe 12. The aeration device 15 aerates the air evenly, improving the average temperature of each small area of ​​the grid. To improve oxygen content and reaction efficiency, a fixed sleeve 2 is fixedly installed above the two reagent tubes 12 inside the reaction tower 1. A vertically arranged honeycomb grid plate 21 is fixed inside the fixed sleeve 2. A horizontally arranged cross plate 23 is fixedly installed above the honeycomb grid plate 21 in the reaction tower 1. A rotating rod 25 is rotatably installed on the cross plate 23 at the middle end of the fixed sleeve 2. The end of the rotating rod 25 that passes through the reaction tower and the end of the connecting rod 24 that passes through the cross plate 23 are connected by sealing gaskets to prevent leakage inside the reaction tower 1. A baffle plate 22 is fixedly installed at the bottom of the rotating rod 25. A driving device is provided between the cross plate 23 and the rotating rod 25.

[0017] The driving device comprises a connecting rod 24, which is horizontally arranged and rotatably inserted into one end of the horizontal plate 23. The connecting rod 24 is connected with the two rotating rods 25 through the meshing arrangement of the bevel gears 26. The double bevel gears 26 press one bevel gear 26 to avoid the problem of shaking of the shielding plate 22 during rotation. The end of the connecting rod 24 away from the rotating rod 25 penetrates the reaction tower 1 and is fixedly provided with a driving gear 3. The driving gear 3 is meshingly arranged below a toothed plate 31. The lower surface of the toothed plate 31 is fixedly provided with a vertically arranged movable plate 32. The movable plate 32 is provided with a movable groove 33 penetratingly arranged thereon. A push block 34 is movably inserted into the movable groove 33. The end of the push block 34 away from the reaction tower 1 is fixedly provided with a rotating plate 35. The end of the rotating plate 35 away from the push block 34 is fixedly provided with a rotating shaft 36. The rotating shaft 36 drives the rotating plate 35 and the push block 34 to push the movable plate 32 to move back and forth continuously, so that the toothed plate 31 at the top drives the driving gear 3 to rotate back and forth repeatedly, so that the connecting rod 24 drives the rotating rod 25 to make the bottom shielding plate 22 rotate back and forth intermittently. At this time, the shielding plate 22 intermittently opens the top of the honeycomb grid plate 21, prolongs the time of the contact between the medicament, gas and waste liquid added therein and the particles, and further improves the reaction effect.

[0018] The end of the rotating rod 25 rotatably inserted into the horizontal plate 23 is connected through a sealing washer, so that the substances in the reaction tower 1 cannot enter the inside of the horizontal plate 23, thereby affecting the normal work of the device.

[0019] A fixed frame 4 in a U-shaped arrangement is fixedly arranged outside the reaction tower 1 and close to the movable plate 32. The rotating shaft 36 is rotatably inserted into the fixed frame 4. A driving motor 37 is fixedly arranged on the outer wall of the fixed frame 4 and close to the rotating shaft 36. The output end of the driving motor 37 is coaxially fixedly arranged on the rotating shaft 36. The driving motor 37 is arranged to provide power for the rotation of the rotating shaft 36, so that the staff can control and start the device conveniently. The two ends of the movable plate 32 are fixedly provided with horizontal rods 41. The two ends of the horizontal rods 41 penetrate the fixed frame 4. The horizontal rods 41 penetrating the fixed frame 4 can provide support for the movable plate 32 during translation, prevent the horizontal plate 23 from deviating during movement, and support the toothed plate 31 and the driving gear 3 at the top by the movable plate 32.

[0020] The shielding plate 22 is arranged in the shape of two symmetrically arranged arc-shaped plates. The shielding plate 22 arranged in this way can discharge a part of the top of the honeycomb grid plate 21 each time the shielding plate 22 rotates back and forth, so that the mixing reaction time of the other part is also increased.

[0021] Working principle: when using, the wastewater is injected into the bottom of the reaction tower 1 through the wastewater pipe 11, the medicament for treatment is injected into the reaction tower 1 through two medicament pipes 12, the first vertically arranged honeycomb grille plate 21 makes the medicament and wastewater move upward together, so that the medicament is evenly distributed in the reaction tower 1, which is beneficial to uniform crystallization and improves the efficiency of the medicament, at the same time, the air burst device 15 at the bottom evenly bursts air, improves the average oxygen content of each small area of the grille, improves the full reaction efficiency, at the same time, the driving motor 37 can drive the rotating shaft 36 to rotate, when the rotating shaft 36 drives the rotating plate 35 to drive the push block 34 to rotate continuously, the push block 34 will continuously move from one end to the other end, at this time, the movable plate 32 driven by the push block 34 will continuously move back and forth, so as to drive the top tooth plate 31 to move back and forth continuously, at this time, the driving gear 3 meshed with the tooth plate 31 will be driven to rotate back and forth repeatedly, so as to control the connecting rod 24 to drive the rotating rod 25 to make the bottom shielding plate 22 rotate back and forth intermittently, at this time, the shielding plate 22 will intermittently open the top of the honeycomb grille plate 21, prolong the time of the medicament, gas and waste liquid particles in contact, which is beneficial to uniform crystallization and improves the efficiency of the medicament, at the same time, prolongs the time of the gas and the particles in the waste liquid, further improves the reaction effect.

[0022] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Therefore, if these modifications and variations of the present application belong to the scope of the claims of the present application and its equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A crystallization granulation circulating fluid bed comprising a reaction column (1), characterized in that: The bottom of the reaction tower (1) is fixedly provided with a base (5), the bottom of the reaction tower (1) is provided with a wastewater pipe (11), the bottom of the reaction tower (1) is provided, above the wastewater pipe (11), with a first medicament pipe (12) and a second medicament pipe (16), the top of the reaction tower (1) is provided with a drain pipe (13), the top of the reaction tower (1) is provided with an upper sealing plate (6), the reaction tower (1) is provided, between the top and the bottom, with a reflux pipe (14), the reaction tower (1) is provided, between the wastewater pipe (11) and the medicament pipe (12), with an air burst device (15), the reaction tower (1) is fixedly provided, above the two medicament pipes (12), with a fixed sleeve (2), the fixed sleeve (2) is fixedly provided with a vertical honeycomb grille plate (21), the reaction tower (1) is fixedly provided, above the honeycomb grille plate (21), with a horizontal transverse plate (23), the transverse plate (23) is rotatably provided with two symmetrical rotating rods (25), the rotating rods (25) are fixedly connected with a shielding plate (22), and the transverse plate (23) and the rotating rods (25) are provided with a driving device.

2. A crystalline prilling circulating fluid bed as claimed in claim 1, characterized in that, The driving device comprises a connecting rod (24), one end of the connecting rod (24) is rotatably inserted into the transverse plate (23) and is horizontally arranged, the connecting rod (24) is connected with the two rotating rods (25) through meshing bevel gears (26), one end of the connecting rod (24) away from the rotating rods (25) penetrates through the reaction tower (1) and is fixedly provided with a driving gear (3), a toothed plate (31) is meshingly arranged below the driving gear (3), a vertical movable plate (32) is fixedly arranged on the lower surface of the toothed plate (31), a movable slot (33) is formed through the movable plate (32), a push block (34) is movably inserted into the movable slot (33), and one end of the push block (34) away from the reaction tower (1) is fixedly provided with a rotating plate (35). One end of the rotating plate (35) away from the push block (34) is fixedly provided with a rotating shaft (36).

3. A crystalline prilling circulating fluid bed as claimed in claim 2, characterized in that, One end of the rotating rod (25) rotatably inserted into the transverse plate (23) is connected through a sealing gasket.

4. A crystalline prilling circulating fluid bed as claimed in claim 3, characterized in that, A fixed frame (4) is fixedly arranged outside the reaction tower (1) and close to the movable plate (32) and is in a U-shaped arrangement, the rotating shaft (36) is rotatably inserted into the fixed frame (4), a driving motor (37) is fixedly arranged on the outer wall of the fixed frame (4) and close to the rotating shaft (36), and the output end of the driving motor (37) is fixedly arranged on the rotating shaft (36) in a coaxial manner.

5. A crystalline prilling circulating fluid bed as claimed in claim 4, characterized in that, The movable plate (32) is fixedly provided with a horizontal rod (41) at both ends, and both ends of the horizontal rod (41) penetrate through the fixed frame (4).

6. A crystalline prilling circulating fluid bed as claimed in claim 5, characterized in that, The shielding plate (22) is in the shape of two symmetrical arc-shaped plates.

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