A fluidized bed dryer for nickel sulfate finished product

Abstract

The utility model discloses a kind of nickel sulfate finished product fluidized bed dryer, it is related to nickel sulfate drying technical field.The nickel sulfate finished product fluidized bed dryer, including base, the upper end of base is installed with fluidized bed lower shell and fluidized bed upper shell;Nickel sulfate flow guide component includes feed hopper, the inside fixed connection of fluidized bed upper shell has arc cross section first material flow guide plate, the front side fixed connection of fluidized bed upper shell has driving motor, the output of driving motor is fixedly connected with shaft, the surface fixed connection of shaft has two helical blades, the inside fixed connection of fluidized bed lower shell has air distribution plate;The right side lower end of fluidized bed lower shell is fixedly connected with discharge pipe, by setting the helical blade of symmetrical distribution in feeding area, cooperate arc first material flow guide plate, concentrated feeding nickel sulfate material can be quickly dispersed to two sides, air distribution plate of three-section structure further guides material evenly spread, significantly improve product quality stability.

Description

Technical Field

[0001] This utility model relates to the field of nickel sulfate drying technology, and in particular to a fluidized bed dryer for finished nickel sulfate product. Background Technology

[0002] In the chemical production field, nickel sulfate is an important chemical raw material, and its drying process has a crucial impact on product quality and production efficiency. Currently, fluidized bed dryers, which are widely used in nickel sulfate drying processes, have revealed many problems that urgently need to be solved during actual operation.

[0003] Traditional fluidized bed dryers typically use conventional flat plate designs for their air distribution plates. When drying nickel sulfate, these plates cannot achieve uniform gas distribution. This uneven gas distribution leads to instability in the state of the nickel sulfate material during fluidization. Some areas experience over-fluidization, resulting in over-drying and even sintering, severely impacting product quality; while other areas suffer from insufficient fluidization and inadequate drying, failing to meet production requirements and reducing efficiency. Furthermore, uneven gas distribution increases internal airflow resistance, leading to higher energy consumption and increased production costs.

[0004] Furthermore, existing nickel sulfate feeding methods have significant drawbacks. A simple direct-fall feeding method is typically used, which makes it difficult for the nickel sulfate to be evenly dispersed on the air distribution plate after entering the dryer. Material accumulates in localized areas, resulting in excessively thick material buildup, hindering fluidization, affecting the uniformity of drying, and easily causing equipment blockage, thus disrupting production continuity. Moreover, uneven material distribution leads to inconsistent heat loads in different parts of the equipment, accelerating localized wear and shortening its service life. Therefore, this invention proposes a novel solution. Utility Model Content

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a fluidized bed dryer for nickel sulfate products, which can solve the problem that uneven material distribution will cause inconsistent heat loads in different parts of the equipment, accelerate local wear of the equipment, and shorten the service life of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fluidized bed dryer for finished nickel sulfate product, comprising a base, with a lower fluidized bed shell and a upper fluidized bed shell installed at the upper end of the base;

[0007] A nickel sulfate flow guiding assembly is disposed between the lower shell of the fluidized bed and the upper shell of the fluidized bed. The nickel sulfate flow guiding assembly includes a feed hopper, which is installed at an incline on the left side of the upper shell of the fluidized bed.

[0008] The fluidized bed shell is fixedly connected to the inside of the first material guide plate with an arc-shaped cross section. The front side of the fluidized bed shell is fixedly connected to the drive motor. The output end of the drive motor is fixedly connected to the rotating shaft. The rotating shaft is rotatably connected to the fluidized bed shell. Two spiral blades are fixedly connected to the surface of the rotating shaft. The two spiral blades are symmetrically arranged on both sides of the rotating shaft.

[0009] An air distribution plate is fixedly connected inside the lower shell of the fluidized bed;

[0010] A discharge pipe is fixedly connected to the lower right side of the fluidized bed lower shell, and a second material guide plate is fixedly connected to the inside of the fluidized bed lower shell near the discharge pipe.

[0011] Preferably, the air distribution plate is divided into three sections, with the left and right sections being flat and the middle section being inclined to the right.

[0012] The surface of the air distribution plate is evenly covered with ventilation holes.

[0013] Preferably, an inclined vibration motor is installed on the front side of the lower shell of the fluidized bed.

[0014] Preferably, the lower shell of the fluidized bed and the upper shell of the fluidized bed are fixed together by bolts.

[0015] Preferably, the bottom of the fluidized bed lower shell is fixedly connected to a plurality of rubber support seats, and the lower ends of the plurality of rubber support seats are all fixedly connected to the upper end of the base.

[0016] Preferably, a plurality of air inlet pipes are fixedly connected to the lower front side of the fluidized bed lower shell, and a plurality of first partitions are fixedly connected to the inner wall of the fluidized bed lower shell.

[0017] Preferably, the inner top surface of the fluidized bed shell is fixedly connected to multiple gas guide plates, and the top of the fluidized bed shell is fixedly connected to three exhaust pipes.

[0018] Preferably, a support frame is fixedly connected to the upper end of the base, and a cooling water tank is fixedly connected to the upper end of the support frame;

[0019] The cooling water tank has three coiled heat exchange tubes fixedly connected inside, and each of the three heat exchange tubes has a connecting hose fixedly connected to its left side.

[0020] Preferably, the inner wall of the connecting hose is coated with heat-insulating material, and the left side of each of the three connecting hoses is connected to the corresponding exhaust pipe.

[0021] Preferably, an outlet pipe is fixedly connected to the upper end of the cooling water tank, and an inlet pipe is fixedly connected to the right side of the cooling water tank.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This fluidized bed dryer for finished nickel sulfate product, by setting symmetrically distributed spiral blades in the feeding area, in conjunction with an arc-shaped first material guide plate, can quickly disperse the concentrated feeding of nickel sulfate material to both sides, avoiding the local accumulation problem caused by traditional direct-fall feeding; the three-section air distribution plate further guides the material to spread evenly, so that the material has a consistent heating area during fluidization, effectively solving the problem of over-drying in some areas and under-drying in some areas, and significantly improving the stability of product quality.

[0024] 2. This fluidized bed dryer for finished nickel sulfate product features a three-section design for the air distribution plate. The left and right sections are straight, while the middle section is inclined and works in conjunction with the first baffle. This design guides the hot air to form a gradient airflow distribution, ensuring stable fluidization of the material in the straight section and accelerating material flow through the inclined section, thus reducing ineffective residence time. The evenly distributed air vents ensure that the airflow acts uniformly on the material layer, reducing internal airflow resistance and energy consumption. At the same time, the high-frequency vibration of the vibrating motor enhances the fluidization intensity of the material, shortens the drying cycle, and further improves drying efficiency. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a schematic diagram of a fluidized bed dryer for nickel sulfate products according to the present invention.

[0027] Figure 2 This is a schematic diagram showing the connection between the lower shell of the fluidized bed and the upper shell of the fluidized bed in this utility model;

[0028] Figure 3 This is a schematic diagram of the air distribution plate of this utility model;

[0029] Figure 4 This is a schematic diagram of the first partition of this utility model;

[0030] Figure 5 This is a schematic diagram of the gas guide plate of this utility model;

[0031] Figure 6 This is a schematic diagram of the cooling water tank of this utility model;

[0032] Figure 7 This is a schematic diagram of the heat exchange tube of this utility model.

[0033] Reference numerals in the attached drawings: 1. Base; 2. Lower shell of fluidized bed; 3. Upper shell of fluidized bed; 4. Rubber support seat; 5. Support frame; 6. Cooling water tank; 7. Exhaust pipe; 8. Connecting hose; 9. Heat exchange tube; 10. Feed hopper; 11. Discharge pipe; 12. Air inlet pipe; 13. Vibration motor; 14. Air distribution plate; 15. First partition plate; 16. Second material guide plate; 17. Gas guide plate; 18. First material guide plate; 19. Drive motor; 20. Rotating shaft; 21. Spiral blade. Detailed Implementation

[0034] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0037] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0038] Please see Figures 1-7This utility model provides a technical solution: a fluidized bed dryer for finished nickel sulfate products, including a base 1, a fluidized bed lower shell 2 and a fluidized bed upper shell 3 installed on the upper end of the base 1, a nickel sulfate flow guiding assembly, which is disposed between the fluidized bed lower shell 2 and the fluidized bed upper shell 3, the nickel sulfate flow guiding assembly includes a feed hopper 10, the feed hopper 10 is installed obliquely on the left side of the fluidized bed upper shell 3, a first material guide plate 18 with an arc-shaped cross section is fixedly connected inside the fluidized bed upper shell 3, a drive motor 19 is fixedly connected to the front side of the fluidized bed upper shell 3, a rotating shaft 20 is fixedly connected to the output end of the drive motor 19, the rotating shaft 20 is rotatably connected to the fluidized bed upper shell 3, two spiral blades 21 are fixedly connected to the surface of the rotating shaft 20, the two spiral blades 21 are symmetrically arranged on both sides of the rotating shaft 20, an air distribution plate 14 is fixedly connected inside the fluidized bed lower shell 2, a discharge pipe 11 is fixedly connected to the lower right side of the fluidized bed lower shell 2, and a second material guide plate 16 is fixedly connected to the side of the fluidized bed lower shell 2 near the discharge pipe 11.

[0039] The air distribution plate 14 is divided into three sections. The left and right sections of the air distribution plate 14 are both flat plates, while the middle section of the air distribution plate 14 is a plate that tilts to the right. The surface of the air distribution plate 14 is evenly provided with ventilation holes.

[0040] An inclined vibration motor 13 is installed on the front side of the fluidized bed lower shell 2.

[0041] The lower shell 2 and the upper shell 3 of the fluidized bed are fixed together by bolts.

[0042] Multiple rubber support seats 4 are fixedly connected to the bottom of the fluidized bed lower shell 2, and the lower ends of the multiple rubber support seats 4 are all fixedly connected to the upper end of the base 1.

[0043] Multiple air inlet pipes 12 are fixedly connected to the lower front side of the fluidized bed lower shell 2, and multiple first partitions 15 are fixedly connected to the inner wall of the fluidized bed lower shell 2.

[0044] Multiple gas guide plates 17 are fixedly connected to the inner top surface of the fluidized bed shell 3, and three exhaust pipes 7 are fixedly connected to the top of the fluidized bed shell 3.

[0045] A support frame 5 is fixedly connected to the upper end of the base 1, and a cooling water tank 6 is fixedly connected to the upper end of the support frame 5. Three coiled heat exchange tubes 9 are fixedly connected inside the cooling water tank 6, and connecting hoses 8 are fixedly connected to the left side of each of the three heat exchange tubes 9.

[0046] The inner wall of the connecting hose 8 is coated with heat insulation material, and the left side of the three connecting hoses 8 is connected to the corresponding exhaust pipe 7 respectively.

[0047] A water outlet pipe is fixedly connected to the upper end of the cooling water tank 6, and a water inlet pipe is fixedly connected to the right side of the cooling water tank 6.

[0048] When using this device, nickel sulfate material enters the fluidized bed shell 3 through the inclined feed hopper 10, and is guided to the feeding area by the first material guide plate 18 with an arc-shaped cross section. At this time, the drive motor 19 drives the rotating shaft 20 to rotate, so that the two symmetrically arranged spiral blades 21 rotate synchronously. The spiral pushing action of the blades disperses the material to both sides, avoiding the accumulation of material, and initially achieving a uniform distribution of material above the air distribution plate 14.

[0049] The drying medium, hot air, enters the bottom chamber of the fluidized bed lower shell 2 through multiple air inlet pipes 12, and is sprayed upward through the air vents evenly opened on the surface of the air distribution plate 14. Since the air distribution plate 14 adopts a three-section structure, the left and right sections are flat plates, and the middle section is inclined to the right. With the help of multiple first baffles 15 on the inner wall, the airflow can be guided to form a gradient distribution: the inclined section accelerates the material to flow to the right, while the flat section ensures local fluidization stability, so that the material forms a uniform fluidized bed state under the action of airflow, and fully contacts the hot air to complete the evaporation of moisture.

[0050] Meanwhile, the inclined vibrating motor 13 generates high-frequency vibration, which is transmitted to the air distribution plate 14 through the fluidized bed lower shell 2, effectively preventing material from sticking and clogging the air vents, and enhancing the fluidization intensity of the material to improve drying efficiency.

[0051] The dried nickel sulfate material moves to the right under the propulsion of the airflow and the guidance of the inclined structure in the middle section of the air distribution plate. After being gathered by the second material guide plate 16, it is discharged from the equipment through the discharge pipe 11, thus completing the drying process.

[0052] The humid exhaust gas generated during the drying process is guided by multiple gas guide plates 17 inside the fluidized bed shell 3 and converges to three exhaust pipes 7. It then enters the coiled heat exchange tubes 9 inside the cooling water tank 6 through the connecting hoses 8 with heat insulation material sprayed on the inner wall. The three coiled heat exchange tubes 9 installed in the cooling water tank 6 are inclined to increase the contact area with the cooling water. When the cooling water tank is circulated with cooling water through the inlet pipe and discharged through the outlet pipe, the cooling water exchanges heat with the high-temperature exhaust gas in the heat exchange tubes 9, realizing the effective recovery of the exhaust gas waste heat. The cooled exhaust gas is then discharged from the equipment through the end of the heat exchange tubes.

[0053] The fluidized bed lower shell 2 and the fluidized bed upper shell 3 are fixed with bolts, which facilitates disassembly and cleaning; the multiple rubber support seats 4 at the bottom can buffer the impact force generated by the vibration motor, reduce the noise of equipment operation and protect the structural stability of the base 1.

[0054] Furthermore, by setting symmetrically distributed spiral blades 21 in the feeding area, in conjunction with the arc-shaped first material guide plate 18, the concentrated feeding of nickel sulfate material can be quickly dispersed to both sides, avoiding the local accumulation problem caused by traditional direct-fall feeding; the three-section air distribution plate 14 further guides the material to spread evenly, so that the material has a consistent heating area during fluidization, effectively solving the problem of excessive drying in some areas and insufficient drying in some areas, and significantly improving the stability of product quality.

[0055] The three-section design of the air distribution plate 14, with the left and right sections being straight and the middle section inclined, works in conjunction with the first baffle 15 to guide hot air to form a gradient airflow distribution. This ensures stable fluidization of the material in the straight section and accelerates material flow through the inclined section, reducing ineffective residence time. The evenly distributed vents allow the airflow to act uniformly on the material layer, reducing airflow resistance inside the equipment and reducing energy consumption. At the same time, the high-frequency vibration of the vibration motor 13 enhances the fluidization intensity of the material, shortens the drying cycle, and further improves drying efficiency.

[0056] Structural Description: Base 1: Serves as the overall support foundation for the equipment, bearing components such as the fluidized bed lower shell 2 and support frame 5, ensuring the stability of the equipment installation;

[0057] The lower shell 2 and the upper shell 3 of the fluidized bed together form the drying chamber. They are detachably connected by bolts, which facilitates internal cleaning and maintenance. The lower shell provides space for fluidized drying, while the upper shell is used to collect and guide the exhaust gas out.

[0058] Rubber support 4: connects the fluidized bed lower shell 2 and the base 1, buffers the impact force generated by the vibration motor 13, reduces equipment operating noise, and protects the base structure;

[0059] Support frame 5 and cooling water tank 6: The support frame fixes the cooling water tank 6, and the cooling water tank exchanges heat with the heat exchange tube 9 through the internal cooling water to realize the recovery of waste heat from the exhaust gas.

[0060] Exhaust pipe 7 and connecting hose 8: The exhaust pipe collects the humid exhaust gas inside the fluidized bed shell 3, and the heat insulation material on the inner wall of the connecting hose 8 reduces heat loss and guides the exhaust gas into the heat exchange tube 9.

[0061] Heat exchange tube 9: The coiled and inclined design increases the contact area with cooling water, efficiently recovers waste heat from exhaust gas, and reduces energy waste;

[0062] Feed hopper 10 and spiral blades 21: The feed hopper guides the material into the equipment, and the drive motor 19 drives the symmetrical spiral blades 21 on the rotating shaft 20 to rotate, dispersing the material to both sides and avoiding local accumulation;

[0063] Discharge pipe 11 and second material guide plate 16: The second material guide plate guides the dried material to converge into the discharge pipe 11, avoiding blockage of the discharge port and ensuring smooth discharge.

[0064] Inlet pipe 12: Introduces hot air for drying, providing medium and heat for fluidized drying;

[0065] Vibration motor 13: The inclined installation generates high-frequency vibration, which is transmitted to the air distribution plate 14 to prevent material from sticking and clogging the air vents, and to enhance the fluidization intensity.

[0066] Air distribution plate 14: The three-section structure has straight left and right sections and an inclined middle section with uniform air vents to achieve uniform airflow distribution, guide the material to fluidize evenly and move to the right, and improve drying efficiency;

[0067] First baffle 15: assists in guiding airflow to form a gradient distribution, optimizes fluidization effect, and reduces airflow resistance;

[0068] First material guide plate 18: The cross-section is arc-shaped, which guides the material falling from the feed hopper 10 to concentrate in the area of ​​the spiral blade 21, and assists in the pre-dispersion of the material;

[0069] Gas guide plate 17: guides the exhaust gas in the fluidized bed shell 3 to converge into the exhaust pipe 7, avoiding exhaust gas residue or local eddies;

[0070] Cooling water tank 6 has an inlet and an outlet pipe: the inlet pipe carries cooling water, and the outlet pipe discharges the water after heat exchange, thus realizing cooling water circulation and ensuring continuous waste heat recovery.

[0071] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fluidized bed dryer for finished nickel sulfate product, characterized in that: Includes a base (1), and a fluidized bed lower shell (2) and a fluidized bed upper shell (3) are installed on the upper end of the base (1); Nickel sulfate flow guiding assembly is disposed between the lower shell (2) and the upper shell (3) of the fluidized bed. The nickel sulfate flow guiding assembly includes a feed hopper (10), which is installed at an incline on the left side of the upper shell (3) of the fluidized bed. The fluidized bed shell (3) is fixedly connected to the inside of a first material guide plate (18) with an arc-shaped cross section. The front side of the fluidized bed shell (3) is fixedly connected to a drive motor (19). The output end of the drive motor (19) is fixedly connected to a rotating shaft (20). The rotating shaft (20) is rotatably connected to the fluidized bed shell (3). Two spiral blades (21) are fixedly connected to the surface of the rotating shaft (20). The two spiral blades (21) are symmetrically arranged on both sides of the rotating shaft (20). An air distribution plate (14) is fixedly connected inside the lower shell (2) of the fluidized bed; A discharge pipe (11) is fixedly connected to the lower right side of the fluidized bed lower shell (2), and a second material guide plate (16) is fixedly connected to the inside of the fluidized bed lower shell (2) on the side near the discharge pipe (11).

2. The fluidized bed dryer for nickel sulfate product according to claim 1, characterized in that: The air distribution plate (14) is divided into three sections. The left and right sections of the air distribution plate (14) are both flat plates, and the middle section of the air distribution plate (14) is a plate that tilts to the right. The surface of the air distribution plate (14) is uniformly provided with ventilation holes.

3. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: A vibrating motor (13) is installed at an angle on the front side of the fluidized bed lower shell (2).

4. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: The fluidized bed lower shell (2) and the fluidized bed upper shell (3) are fixed together by bolts.

5. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: The bottom of the fluidized bed lower shell (2) is fixedly connected to a plurality of rubber support seats (4), and the lower ends of the plurality of rubber support seats (4) are all fixedly connected to the upper end of the base (1).

6. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: Multiple air inlet pipes (12) are fixedly connected to the lower front end of the fluidized bed lower shell (2), and multiple first partitions (15) are fixedly connected to the inner wall of the fluidized bed lower shell (2).

7. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: Multiple gas guide plates (17) are fixedly connected to the inner top surface of the fluidized bed shell (3), and three exhaust pipes (7) are fixedly connected to the top of the fluidized bed shell (3).

8. A fluidized bed dryer for finished nickel sulfate product according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to a support frame (5), and the upper end of the support frame (5) is fixedly connected to a cooling water tank (6); The cooling water tank (6) has three coiled heat exchange tubes (9) fixedly connected inside, and each of the three heat exchange tubes (9) has a connecting hose (8) fixedly connected to its left side.

9. A fluidized bed dryer for finished nickel sulfate product according to claim 8, characterized in that: The inner wall of the connecting hose (8) is coated with heat insulation material, and the left side of the three connecting hoses (8) is connected to the corresponding exhaust pipe (7) respectively.

10. A fluidized bed dryer for finished nickel sulfate product according to claim 8, characterized in that: The upper end of the cooling water tank (6) is fixedly connected to an outlet pipe, and the right side of the cooling water tank (6) is fixedly connected to an inlet pipe.

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