Fluidized bed crystallization dryer

Abstract

The utility model relates to the technical field of drying equipment, and discloses a fluidized bed crystallization drying machine which comprises a base, a drying box is fixedly connected to one side of the top of the base, a fan is fixedly connected to one side of the top of the base, a gas conveying pipe is fixedly connected to the output end of the fan, and one end of the gas conveying pipe is fixedly connected to the interior of the drying box. A heater is fixedly connected to the outer wall of the air conveying pipe, the bottom of the heater is fixedly connected to the top of the base, an air pump is fixedly connected to one side of the outer wall of the drying box, the input end of the air pump is fixedly connected into the drying box, and the output end of the air pump is fixedly connected with a conveying pipe. According to the device, the waste heat pipe is communicated with the liquid in the heat exchange pipe through the connecting pipe, so that the gas in the gas conveying pipe is preheated by heat, the energy consumption required by the heater for heating is reduced, the problem that hot air with waste heat cannot be reused during drying is solved, and the energy-saving property of the device in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drying equipment, in particular to a fluidized bed crystallization dryer. Background Art

[0002] Fluidized bed crystallization is a method of crystallization using fluidized bed technology. In fluidized bed crystallization, solid particles are fluidized by gas or liquid to make them flow, which can provide good material mixing and heat and mass transfer conditions, and is conducive to the crystallization process. Fluidized bed crystallization dryer is a device used for drying in the fluidized bed crystallization process. Fluidized bed crystallization dryer is usually designed to provide appropriate temperature, gas flow and material mixing conditions to ensure that the particles in the fluidized bed get good heat and mass transfer effects during the drying process.

[0003] After searching, a dryer is disclosed in the announcement number: CN219244198U, including: a machine body, a conveying device is arranged on the machine body, the conveying device is used to convey raw materials, the conveying device is connected to a drying device, the drying device is used to dry the raw materials conveyed by the conveying device, and the conveying device includes a mounting frame, the mounting frame is fixedly mounted on one side of the machine body, a motor is fixedly mounted on the mounting frame, a rotating shaft is fixedly mounted on the output end of the motor, the rotating shaft is rotatably connected to the machine body through a bearing, and a spiral blade is fixedly mounted on the rotating shaft. In the dryer, when the conveying device conveys the organic silicon raw material, the drying device blows away and absorbs the moisture on the surface of the raw material, and then introduces hot air into the machine body, so that the hot air dries the residual moisture on the surface of the raw material, accelerates the drying, and the conveying device after being heated by the hot air contacts the raw material and conducts heat to the raw material, which accelerates the drying of the raw material again, thereby improving the drying efficiency of the raw material.

[0004] The dryer of the application directly heats and dries by means of a hot air blower during drying, but is unable to reuse the hot air with waste heat, which results in a waste of resources and an increase in production costs due to the need to continuously add new heat energy to maintain the drying process. Therefore, a circulation system is needed to reuse the waste heat in order to save energy. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a fluidized bed crystallization dryer, which aims to improve the problem that the existing dryer cannot reuse the hot air with residual heat during drying, which will cause waste of resources.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a fluidized bed crystallization dryer comprises a base, a drying box is fixedly connected to one side of the top of the base, a fan is fixedly connected to one side of the top of the base, an output end of the fan is fixedly connected to an air supply pipe, one end of the air supply pipe is fixedly connected to the inside of the drying box, a heater is fixedly connected to the outer wall of the air supply pipe, the bottom of the heater is fixedly connected to the top of the base, an air pump is fixedly connected to one side of the outer wall of the drying box, an input end of the air pump is fixedly connected to the inside of the drying box, a delivery pipe is fixedly connected to the output end of the air pump, one end of the delivery pipe is fixedly connected to a threaded pipe, a heat exchange pipe is fixedly connected to one side of the outer wall of the drying box, the outer wall of the threaded pipe is fixedly connected to the inside of the heat exchange pipe, one end of the threaded pipe is fixedly connected to an exhaust pipe, a connecting pipe is fixedly connected to one side of the inside of the heat exchange pipe, one end of the connecting pipe is fixedly connected to a waste heat pipe, the inner wall of the waste heat pipe is fixedly connected to the outer wall of the gas supply pipe, and an opening and closing component is provided on the top of the drying box.

[0007] Through the above technical solution, the air pump discharges the waste heat gas inside the box cover through the delivery pipe, so that the gas can be delivered to the inside of the threaded pipe, and the heat is converted between the inside of the threaded pipe and the heat exchange liquid inside the heat exchange pipe. The waste heat pipe is connected to the liquid inside the heat exchange pipe through the connecting pipe, so that the heat preheats the gas inside the gas delivery pipe, thereby reducing the energy consumption required for heating by the heater.

[0008] Furthermore, the opening and closing assembly includes a box cover and a lock, wherein one side of the bottom of the box cover is rotatably connected to one side of the top of the drying box, one side of the lock is fixedly connected to the outer wall of the box cover, and the other side of the lock is fixedly connected to the outer wall of the drying box.

[0009] Through the above technical solution, the box cover is fixed by the lock.

[0010] Furthermore, vertical plates are fixedly connected to both sides of the drying box, and a plurality of sliding rods are slidably connected to the vertical plates.

[0011] Through the above technical solution, the sliding rod slides inside the vertical plate.

[0012] Furthermore, one end of the sliding rod is fixedly connected with a sliding block, and the outer wall of the sliding rod is sleeved with a spring.

[0013] Through the above technical solution, the movable space of spring one is limited by slide rod one.

[0014] Furthermore, one end of the spring is fixedly connected to one side of the outer wall of the vertical plate, and the other end of the spring is fixedly connected to one side of the outer wall of the sliding block.

[0015] Through the above technical solution, spring 1 acts on the movable block.

[0016] Furthermore, a second slide bar of an annular array is fixedly connected inside the sliding block, and a driving box is slidably connected to an outer wall of the second slide bar.

[0017] Through the above technical solution, the driving box slides on the second slide bar.

[0018] Furthermore, a spring 2 is sleeved on the outer wall of the second slide rod, one end of the spring 2 is fixedly connected to the outer wall of the drive box, and the other end of the spring 2 is fixedly connected to the inner wall of the sliding block.

[0019] Through the above technical solution, the second spring acts on the drive box.

[0020] Furthermore, a vibration box is fixedly connected to the top of the driving box, a double-headed motor is fixedly connected inside the driving box, and a meniscus is fixedly connected to the output end of the double-headed motor.

[0021] Through the above technical solution, the meniscus is driven by a double-head motor.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the air pump first discharges the waste heat gas inside the box cover through the delivery pipe, so that the gas can be delivered to the inside of the threaded pipe, and the heat is converted between the inside of the threaded pipe and the heat exchange liquid inside the heat exchange pipe. The waste heat pipe is connected with the liquid inside the heat exchange pipe through the connecting pipe, so that the heat preheats the gas inside the gas delivery pipe, thereby reducing the energy consumption required for heating by the heater, solving the problem that the hot air with waste heat cannot be reused during drying, and improving the energy saving of the device.

[0024] 2. In the utility model, firstly, the meniscus is driven to rotate by the double-headed motor, and then the meniscus will drive the driving box to vibrate. The driving box can slide on the second slide bar, so that the driving box slides up and down, and then the first slide bar slides inside the vertical plate, so that the driving box slides left and right, and the vibration box on the top of the driving box will shake accordingly, so that the crystals inside the vibration box are dried, which solves the problem of low efficiency during drying and improves the efficiency of crystal drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of a fluidized bed crystallization dryer proposed by the utility model;

[0026] Figure 2 This is a cross-sectional schematic diagram of a heat exchange tube of a fluidized bed crystallization dryer proposed by the utility model;

[0027] Figure 3 A schematic cross-sectional view of a drying box of a fluidized bed crystallization dryer proposed in the utility model;

[0028] Figure 4 The utility model is a cross-sectional schematic diagram of a drive box of a fluidized bed crystallization dryer.

[0029] Legend:

[0030] 1. Base; 2. Drying box; 3. Box cover; 4. Lock; 5. Air pump; 6. Heater; 7. Air pipe; 8. Waste heat pipe; 9. Fan; 10. Connecting pipe; 11. Exhaust pipe; 12. Delivery pipe; 13. Threaded pipe; 14. Heat exchange pipe; 15. Vibration box; 16. Sliding block; 17. Drive box; 18. Meniscus; 19. Vertical plate; 20. Sliding rod 1; 21. Spring 1; 22. Double-headed motor; 23. Sliding rod 2; 24. Spring 2. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 and Figure 2 , an embodiment provided by the utility model: a fluidized bed crystallization dryer, comprising a base 1, a drying box 2 is fixedly connected to one side of the top of the base 1, a fan 9 is fixedly connected to one side of the top of the base 1, an output end of the fan 9 is fixedly connected to an air pipe 7, one end of the air pipe 7 is fixedly connected to the inside of the drying box 2, an outer wall of the air pipe 7 is fixedly connected to a heater 6, the bottom of the heater 6 is fixedly connected to the top of the base 1, an air pump 5 is fixedly connected to one side of the outer wall of the drying box 2, an input end of the air pump 5 is fixedly connected to the inside of the drying box 2, a delivery pipe 12 is fixedly connected to the output end of the air pump 5, one end of the delivery pipe 12 is fixedly connected to a threaded pipe 13, a heat exchange pipe 14 is fixedly connected to one side of the outer wall of the drying box 2, the outer wall of the threaded pipe 13 is fixedly connected to the inside of the heat exchange pipe 14, one end of the threaded pipe 13 is fixedly connected to an exhaust pipe 11, one side of the inside of the heat exchange pipe 14 is fixedly connected to a connecting pipe 10, one end of the connecting pipe 10 is fixedly connected to a waste heat pipe 8, and the inner wall of the waste heat pipe 8 is fixedly connected to the outer wall of the air pipe 7;

[0033] Specifically, first, the fan 9 conveys gas to the inside of the drying box 2 through the gas pipe 7. When the gas passes through the heater 6, it will be heated to an appropriate temperature, thereby drying the inside of the drying box 2. The heater 6 can adopt various methods such as electric heating, gas heating or steam heating. The appropriate heating method is selected according to actual needs. During the drying process, the air pump 5 extracts the hot air used in the drying box 2 and conveys it to the inside of the threaded tube 13 through the conveying pipe 12. At this time, the waste heat in the hot air will exchange heat with the heat exchange liquid in the heat exchange tube 14, so that the heat is transferred from the hot air to the liquid in the heat exchange tube 14. The gas after the heat exchange is discharged through the exhaust pipe 11. At the same time, the waste heat pipe 8 is connected to the heat exchange tube 14 through the connecting pipe 10, so that the liquid in the waste heat pipe 8 is connected to the liquid in the heat exchange tube 14. In this way, the liquid with heat in the waste heat pipe 8 can preheat the liquid in the gas pipe 7, thereby saving energy consumption when the heater 6 is heated.

[0034] Reference Figure 1 and Figure 2 , an opening and closing assembly is provided on the top of the drying box 2, and the opening and closing assembly includes a box cover 3 and a lock 4, one side of the bottom of the box cover 3 is rotatably connected to one side of the top of the drying box 2, one side of the lock 4 is fixedly connected to the outer wall of the box cover 3, and the other side of the lock 4 is fixedly connected to the outer wall of the drying box 2;

[0035] Specifically, a box cover 3 is provided on the drying box 2, which can be opened and fixed by a lock 4, so that the crystals to be dried can be placed in the drying box 2 for drying.

[0036] Reference Figure 3 and Figure 4 , both sides of the drying box 2 are fixedly connected with vertical plates 19, and multiple sliding rods 20 are slidably connected inside the vertical plates 19, and one end of the sliding rod 20 is fixedly connected to the sliding block 16, and the outer wall of the sliding rod 20 is sleeved with a spring 21, and one end of the spring 21 is fixedly connected to one side of the outer wall of the vertical plate 19, and the other end of the spring 21 is fixedly connected to one side of the outer wall of the sliding block 16, and the sliding block 16 is fixedly connected with a circular array of sliding rods 23, and the outer wall of the sliding rods 23 is slidably connected to the driving box 17, and the outer wall of the sliding rods 23 is sleeved with springs 24, and one end of the springs 24 is fixedly connected to the outer wall of the driving box 17, and the other end of the springs 24 is fixedly connected to the inner wall of the sliding block 16, and the top of the driving box 17 is fixedly connected with a vibration box 15, and the inside of the driving box 17 is fixedly connected with a double-headed motor 22, and the output end of the double-headed motor 22 is fixedly connected with a meniscus 18;

[0037] Specifically, during drying, the crystals are placed in the vibration box 15, and when the double-headed motor 22 is started, it drives the meniscus 18 to rotate. The irregular shape of the meniscus 18 gives it special dynamic characteristics. When rotating, it drives the drive box 17 to shake. This shaking is not a simple up and down or left and right movement, but a compound movement combining two directions. The drive box 17 can slide on the slide bar 23 and shake up and down through the elasticity of the spring 24. At the same time, the drive box 17 can also slide on the vertical plate 19 through the slide bar 1 20, and shake left and right through the elasticity of the spring 1 21. This horizontal shaking is combined with the vertical shaking to form an all-round vibration effect. When the drive box 17 shakes, it drives the vibration box 15 to shake synchronously, which can not only accelerate the air flow on the surface of the crystal and promote the evaporation of water, but also effectively prevent the crystal from sticking or agglomerating during the drying process. Therefore, this method not only improves the crystal drying rate, but also ensures the quality of the crystal product.

[0038] Working principle: The dryer can transport gas to the inside of the drying box 2 through the air pipe 7 by the fan 9. At the same time, the gas will be heated when passing through the heater 6, so as to dry the inside of the drying box 2. The air pump 5 can extract the hot air used in the drying box 2 and transport it to the inside of the threaded pipe 13 through the delivery pipe 12. The residual heat in the hot air will exchange heat with the heat exchange liquid in the heat exchange pipe 14, so that the heat is transferred to the liquid in the heat exchange pipe 14. The gas after heat exchange will be discharged by the exhaust pipe 11, and the residual heat pipe 8 is connected to the heat exchange pipe 14 through the connecting pipe 10, so that the liquid in the residual heat pipe 8 is connected with the liquid in the heat exchange pipe 14. Then, the residual heat pipe 8 The liquid with heat will preheat the liquid inside the gas pipe 7, thereby saving energy consumption when the heater 6 is heated. When drying inside the drying box 2, the crystal can be placed in the vibration box 15, and the double-headed motor 22 can drive the meniscus 18 to rotate. The irregular shape of the meniscus 18 will drive the drive box 17 to shake. The drive box 17 can slide on the slide bar 23 and shake up and down through the elasticity of the spring 24. At the same time, the drive box 17 can slide on the vertical plate 19 through the slide bar 20 and shake left and right through the elasticity of the spring 21. The drive box 17 will drive the vibration box 15 to shake, thereby accelerating the drying rate of the crystal.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fluidized bed crystallization dryer, comprising a base (1), characterized in that: A drying box (2) is fixedly connected to one side of the top of the base (1), a fan (9) is fixedly connected to one side of the top of the base (1), an output end of the fan (9) is fixedly connected to an air supply pipe (7), one end of the air supply pipe (7) is fixedly connected to the inside of the drying box (2), an outer wall of the air supply pipe (7) is fixedly connected to a heater (6), a bottom of the heater (6) is fixedly connected to the top of the base (1), an outer wall of the drying box (2) is fixedly connected to an air pump (5), an input end of the air pump (5) is fixedly connected to the inside of the drying box (2), and an output end of the air pump (5) is fixedly connected to A delivery pipe (12) is provided, one end of the delivery pipe (12) is fixedly connected to a threaded pipe (13), one side of the outer wall of the drying box (2) is fixedly connected to a heat exchange pipe (14), the outer wall of the threaded pipe (13) is fixedly connected to the inside of the heat exchange pipe (14), one end of the threaded pipe (13) is fixedly connected to an exhaust pipe (11), one side of the inside of the heat exchange pipe (14) is fixedly connected to a connecting pipe (10), one end of the connecting pipe (10) is fixedly connected to a waste heat pipe (8), the inner wall of the waste heat pipe (8) is fixedly connected to the outer wall of the gas delivery pipe (7), and an opening and closing component is provided on the top of the drying box (2).

2. A fluidized bed crystallization dryer according to claim 1, characterized in that: The opening and closing assembly comprises a box cover (3) and a lock (4); one side of the bottom of the box cover (3) is rotatably connected to one side of the top of the drying box (2); one side of the lock (4) is fixedly connected to the outer wall of the box cover (3); and the other side of the lock (4) is fixedly connected to the outer wall of the drying box (2).

3. A fluidized bed crystallization dryer according to claim 1, characterized in that: Both sides of the drying box (2) are fixedly connected to vertical plates (19), and a plurality of sliding rods (20) are slidably connected to the vertical plates (19).

4. A fluidized bed crystallization dryer according to claim 3, characterized in that: One end of the sliding rod 1 (20) is fixedly connected to a sliding block (16), and the outer wall of the sliding rod 1 (20) is sleeved with a spring 1 (21).

5. A fluidized bed crystallization dryer according to claim 4, characterized in that: One end of the spring (21) is fixedly connected to one side of the outer wall of the vertical plate (19), and the other end of the spring (21) is fixedly connected to one side of the outer wall of the sliding block (16).

6. A fluidized bed crystallization dryer according to claim 4, characterized in that: The sliding block (16) is fixedly connected inside with a ring-shaped array of sliding rods 2 (23), and the outer wall of the sliding rods 2 (23) is slidably connected with a driving box (17).

7. A fluidized bed crystallization dryer according to claim 6, characterized in that: The outer wall of the second slide rod (23) is sleeved with a second spring (24), one end of the second spring (24) is fixedly connected to the outer wall of the drive box (17), and the other end of the second spring (24) is fixedly connected to the inner wall of the sliding block (16).

8. A fluidized bed crystallization dryer according to claim 7, characterized in that: The top of the drive box (17) is fixedly connected to a vibration box (15), the interior of the drive box (17) is fixedly connected to a double-headed motor (22), and the output end of the double-headed motor (22) is fixedly connected to a meniscus (18).

Images