Fluidized bed drying device

Abstract

The utility model discloses a fluidized bed drying device which comprises a fluidized bed body, an air inlet device and an air exhaust device. The air inlet device and the exhaust device are respectively connected with the fluidized bed body; the fluidized bed body comprises a shell and a raking assembly, the shell is provided with a feeding end, a discharging end, an air inlet and an exhaust port, the air inlet is connected with an air inlet device, and the exhaust port is connected with an exhaust device; wherein the raking assembly comprises a mounting frame, a raking roller, a driving structure and a tensioning structure, and the mounting frame is arranged in the shell and located below the feeding end; moving blocks are slidably arranged on the two sides of the mounting frame, a screw is in threaded connection with the mounting frame, and the end, away from the mounting frame, of the screw is rotationally connected with the moving blocks; the raking roller is rotationally mounted on the moving block; the fluidized bed drying device aims to solve the problem that the drying effect of wet materials becomes poor due to the fact that materials are stacked after the materials are fed into the fluidized bed drying device in the prior art.

Description

Technical Field

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

[0002] Fluidized bed drying is a type of equipment commonly used for drying granular materials and powders, and is widely used in the pharmaceutical, chemical, and food industries. Its operating principle is to heat air or other gases and feed them into the device from the bottom. This airflow creates a "fluidized" state for the material, achieving efficient and uniform drying. Compared with traditional drying methods, fluidized bed drying offers advantages such as high heat and mass transfer efficiency, short drying times, and low energy consumption. Furthermore, fluidized bed drying equipment offers a flexible structural design that can be adjusted to suit the characteristics of different materials, meeting diverse production needs. Therefore, fluidized bed drying has become an increasingly important drying technology in modern industry.

[0003] The utility model patent with application number CN202420077258.0 and announcement number CN221648895U (hereinafter referred to as "prior art 1") discloses a vibrating fluidized bed dryer with better air intake effect, comprising an air distribution box, a machine body and an air distribution assembly, wherein the machine body is arranged on the air distribution box, an air duct is arranged in the air distribution box, baffles are arranged on the left and right sides of the air duct, and several groups of the air distribution assemblies are arranged in the air distribution box, and the air distribution assemblies include an angle adjustment assembly and a height adjustment assembly.

[0004] The specification of prior art 1 discloses a vibrating fluidized bed dryer with better air intake effect. When in use, the material is fed into the machine body to complete the feeding of the material. However, in actual application, after the wet material is loaded, since the material is in a wet state, this will cause the material to accumulate at the feed port, resulting in the hot air being unable to blow away the material, making the drying effect of the material worse. Summary of the Invention

[0005] The utility model provides a fluidized bed drying device, which aims to solve the problem in the prior art that material piles up after feeding into the fluidized bed drying device, thereby causing poor drying effect of wet materials.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A fluidized bed drying device comprises a fluidized bed body, an air intake device and an exhaust device; the air intake device and the exhaust device are respectively connected to the fluidized bed body;

[0008] The fluidized bed body includes a shell and a rake and disperser assembly. The shell has a feed end, a discharge end, an air inlet and an exhaust port. The air inlet is connected to the air intake device, and the exhaust port is connected to the exhaust device.

[0009] Among them, the raking and spreading assembly includes a mounting frame, a raking and spreading roller, a driving structure and a tensioning structure. The mounting frame is arranged inside the shell and is located below the feed end; moving blocks are slidably arranged on both sides of the mounting frame, and a screw is threadedly connected to the mounting frame, and the end of the screw away from the mounting frame is rotatably connected to the moving block; the raking and spreading roller is rotatably installed on the moving block, the driving structure is used to drive the raking and spreading roller to rotate, the tensioning structure is installed on the moving block, and the tensioning structure is used to tension the driving structure.

[0010] Furthermore, the air intake device includes a blower, a heater and an air supply duct. The blower is used to be installed on a plane, the heater is connected to the air outlet end of the blower, the air intake duct is connected to the outlet end of the heater, and the outlet end of the air intake duct is connected to the side wall of the shell.

[0011] Furthermore, the exhaust device includes an exhaust duct, an induced draft fan, a cyclone dust collector and a bag dust collector. The exhaust duct is installed at the top of the shell, the cyclone dust collector is connected to the outlet end of the exhaust duct, the inlet end of the bag dust collector is connected to the outlet end of the cyclone dust collector, and the outlet end of the bag dust collector is connected to the induced draft fan through an exhaust pipe; wherein, the inlet end of the exhaust duct, the outlet end of the air supply duct and the inlet end of the exhaust pipe are all provided with filters.

[0012] Furthermore, it also includes a screw feeder, which is arranged on one side of the fluidized bed body, and the outlet end of the screw feeder is located above the feed end. The screw feeder is used to load the wet material into the interior of the shell through the feed end.

[0013] Furthermore, sliding rails are provided on both sides of the mounting frame, and the moving block is slidably mounted on the sliding rails.

[0014] Furthermore, a guide assembly is provided on the mounting frame, which includes a guide rod and a guide hole. The guide hole is provided on the mounting frame, and the guide rod is slidably installed inside the guide hole. The end of the guide rod is fixedly connected to a moving block away from one end of the screw rod.

[0015] Furthermore, the raking and spreading roller includes a roller body and a plurality of raking and spreading claws. Both ends of the roller body are rotatably mounted on the moving block, and the plurality of raking and spreading claws are fixedly mounted on the roller body.

[0016] Furthermore, the driving structure includes a motor and a transmission mechanism, and the motor is connected to the roller body through the transmission mechanism.

[0017] Furthermore, the tensioning structure includes a slide cylinder, a support rod and a tensioning wheel. The slide cylinder is installed on the moving block, the support rod is fixedly installed on the movable end of the slide cylinder, and the tensioning wheel is rotatably installed on the support rod.

[0018] Furthermore, a mounting plate is provided on the mounting frame, a clearance area is formed between the mounting plate and the mounting frame, the transmission mechanism is located in the clearance area, and the motor is provided on the mounting plate.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model mainly comprises a fluidized bed body, an air intake device and an exhaust device; in actual use, the staff rotates the screw to adjust the position of the moving block according to the actual amount of material to be dried, thereby adjusting the distance between the raking roller and the ground of the shell, and then tensioning the driving structure through the tensioning structure, and then the wet material to be dried is passed into the shell from the feed end, and the wet material falls to the bottom of the shell through the mounting frame, and the discharge end is closed, and then the driving structure is started, and the driving structure controls the rotation of the raking roller. Under the action of the rotation of the raking roller, the wet material near the feed end is raked and scattered, and at the same time, the air intake device and the exhaust device are started, and the air intake device passes hot air into the shell, and the wet material is fluidized and dried in the shell, and at the same time, the exhaust device discharges the hot air, and after the drying is completed, the discharge end is opened and the exhaust device is closed, and the dry material is discharged from the discharge end by the air intake device and collected, thereby completing the drying of the wet material. The advantage of such a setting is that the wet material can be raked and scattered by the raking component, so that the wet material is not easy to accumulate at the feed end, thereby achieving a better drying effect of the wet material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a structural diagram of the rake and spread component in the utility model.

[0023] Figure 2 For this utility model Figure 1 A partial enlarged view of point A in the middle.

[0024] Figure 3 It is a structural diagram of the present utility model.

[0025] In the figure, 101-housing, 102-feed end, 103-discharge end, 104-air inlet, 105-exhaust port, 106-mounting frame, 107-raking roller, 108-moving block, 109-screw, 110-blower, 111-heater, 112-air supply duct, 113-exhaust duct, 114-induced draft fan, 115-cyclone dust collector, 116-bag dust collector , 117-screw feeder, 118-sliding track, 119-guide rod, 120-guide hole, 121-roller body, 122-raking claw, 123-motor, 124-slide cylinder, 125-support rod, 126-tensioning pulley, 127-mounting plate, 128-allowance area, 129-driving pulley, 130-driven pulley, 131-belt, 132-support plate. DETAILED DESCRIPTION

[0026] The present invention is further described below with reference to the embodiments. The embodiments described are only a portion of the embodiments of the present invention and are not intended to be all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by persons of ordinary skill in the art without creative effort are also within the scope of protection of the present invention.

[0027] See also Figure 1-3 As shown, this embodiment discloses a fluidized bed drying device, comprising a fluidized bed body, an air intake device, and an exhaust device; the air intake device and the exhaust device are respectively connected to the fluidized bed body;

[0028] The fluidized bed body includes a shell 101 and a rake and disperser assembly. The shell 101 has a feed end 102, a discharge end 103, an air inlet 104 and an exhaust port 105. The air inlet 104 is connected to the air intake device, and the exhaust port 105 is connected to the exhaust device.

[0029] The raking and spreading assembly includes a mounting frame 106, a raking and spreading roller 107, a driving structure, and a tensioning structure. The mounting frame 106 is arranged inside the housing 101 and below the feed end 102. Moving blocks 108 are slidably arranged on both sides of the mounting frame 106. A screw 109 is threadedly connected to the mounting frame 106. The end of the screw 109 away from the mounting frame 106 is rotatably connected to the moving block 108. The raking and spreading roller 107 is rotatably mounted on the moving block 108. The driving structure is used to drive the raking and spreading roller 107 to rotate. The tensioning structure is mounted on the moving block 108. The tensioning structure is used to tension the driving structure.

[0030] The utility model mainly includes a fluidized bed body, an air intake device and an exhaust device; in actual use, the staff rotates the screw 109 to adjust the position of the moving block 108 according to the actual amount of material to be dried, thereby adjusting the distance between the raking roller 107 and the ground of the shell 101, and then tensioning the driving structure through the tensioning structure, and then the wet material to be dried is passed into the shell 101 from the feed end 102, and the wet material falls to the bottom of the shell 101 through the mounting bracket 106, and the discharge end 103 is closed, and then the driving structure is started, and the driving structure controls the rotation of the raking roller 107. Under the action of the rotation of the scattering roller 107, the wet material near the feed end 102 is raked and scattered. At the same time, the air intake device and the exhaust device are started. The air intake device passes hot air into the interior of the shell 101, and the wet material is fluidized and dried in the shell 101. At the same time, the exhaust device discharges the hot air. After the drying is completed, the discharge end 103 is opened and the exhaust device is closed. The dry material is discharged from the discharge end 103 by the air intake device and then collected, thereby completing the drying of the wet material. The advantage of this arrangement is that the wet material can be raked and scattered by the raking and scattering component, so that the wet material is not easy to accumulate at the feed end 102, thereby achieving a better drying effect for the wet material.

[0031] In some embodiments, the air intake device includes a blower 110, a heater 111 and an air supply duct 112. The blower 110 is used to be installed on a plane, the heater 111 is connected to the air outlet end of the blower 110, the air intake duct is connected to the outlet end of the heater 111, and the outlet end of the air intake duct is connected to the side wall of the outer shell 101.

[0032] During actual use, the staff turns on the blower 110, and the blower 110 passes fresh air into the air supply duct 112. During this process, the heater 111 heats the fresh air, and the hot air enters the shell 101 through the air supply duct 112 to fluidize and dry the wet material.

[0033] In some embodiments, the exhaust device includes an exhaust duct 113, an induced draft fan 114, a cyclone dust collector 115 and a bag dust collector 116. The exhaust duct 113 is installed at the top of the housing 101, the cyclone dust collector 115 is connected to the outlet end of the exhaust duct 113, the inlet end of the bag dust collector 116 is connected to the outlet end of the cyclone dust collector 115, and the outlet end of the bag dust collector 116 is connected to the induced draft fan 114 through an exhaust pipe; wherein, the inlet end of the exhaust duct 113, the outlet end of the air supply duct and the inlet end of the exhaust pipe are all provided with filters.

[0034] During actual use, after the induced draft fan 114 is started, the hot air mixed with dust inside the shell 101 is induced, and the hot air mixed with dust passes through the cyclone dust collector 115 and the bag dust collector 116 to remove the dust in the hot air, and finally the hot air is discharged into the atmosphere. In this process, since the blower 110 continuously blows air into the shell 101, the material is in a fluidized state in the shell 101. At this time, the filter screens at the inlet end of the exhaust channel 113, the outlet end of the air supply channel and the inlet end of the exhaust pipe block the shell 101 to prevent the material from leaking.

[0035] In some embodiments, a screw feeder 117 is further included. The screw feeder 117 is arranged on one side of the fluidized bed body. The outlet end of the screw feeder 117 is located above the feed end 102. The screw feeder 117 is used to load the wet material and then enter the interior of the shell 101 through the feed end 102.

[0036] In actual use, the main function of the screw feeder 117 is to lift and convey the wet material so that the wet material enters the housing 101 through the feed end 102 .

[0037] It should be noted that in this embodiment, the screw feeder 117, the blower 110, the induced draft fan 114, the heater 111, the cyclone dust collector 115 and the bag dust collector 116 all use existing technologies. This embodiment does not involve any improvement to the structures in the above-mentioned existing technologies, and they will not be described one by one here.

[0038] In some embodiments, sliding rails 118 are provided on both sides of the mounting frame 106 , and the moving block 108 is slidably mounted on the sliding rails 118 .

[0039] In actual use, the sliding track 118 is composed of two support plates 132 . The sliding track 118 is formed between the two support plates 132 , and the moving block 108 slides between the two support plates 132 .

[0040] In some embodiments, a guide assembly is also provided on the mounting frame 106, and the guide assembly includes a guide rod 119 and a guide hole 120. The guide hole 120 is provided on the mounting frame 106, and the guide rod 119 is slidably installed inside the guide hole 120. The end of the guide rod 119 is fixedly connected to the moving block 108 away from one end of the screw rod 109.

[0041] During actual use, when the screw 109 rotates, it drives the moving block 108 to slide on the mounting frame 106. At this time, the moving block 108 away from the end of the screw 109 is guided inside the guide hole 120 by the guide rod 119, thereby increasing the overall stability of the raking roller 107 during sliding.

[0042] In some embodiments, the raking roller 107 includes a roller body 121 and a plurality of raking claws 122 . Both ends of the roller body 121 are rotatably mounted on the moving block 108 , and the plurality of raking claws are fixedly mounted on the roller body 121 .

[0043] During actual use, the roller body 121 rotates to drive the plurality of raking claws 122 to rotate synchronously. The raking claws 122 rake and scatter the accumulated wet materials, which is beneficial to the blowing of hot air.

[0044] In some embodiments, the driving structure includes a motor 123 and a transmission mechanism, and the motor 123 is connected to the roller body 121 through the transmission mechanism.

[0045] In actual use, the transmission mechanism is specifically a pulley transmission mechanism, which includes a driving pulley 129, a driven pulley 130 and a belt 131. The driving pulley 129 is fixedly mounted on the output shaft of the motor 123, and the driven pulley 130 is fixedly mounted on the roller body 121. The belt 131 is sleeved on the driving pulley 129 and the driven pulley 130; when in use, the motor 123 rotates and drives the driving pulley 129 to rotate, and drives the driven pulley 130 to rotate under the action of the friction force of the belt 131, thereby achieving the purpose of driving the roller body 121 to rotate when the motor 123 rotates, wherein the tensioning structure acts on the belt 131 to tension the belt 131.

[0046] In some embodiments, the tensioning structure includes a slide cylinder 124, a support rod 125 and a tensioning wheel 126. The slide cylinder 124 is installed on the moving block 108, the support rod 125 is fixedly installed on the movable end of the slide cylinder 124, and the tensioning wheel 126 is rotatably installed on the support rod 125.

[0047] During actual use, when the moving block 108 slides upward, the belt 131 on the driven pulley 130 and the driving pulley 129 will become loose. In order to maintain the transmission between the driven pulley 130 and the driving pulley 129, the staff drives the slide cylinder 124 to extend, thereby driving the support rod 125 and the tensioning pulley 126 to squeeze the belt 131 and tension the belt 131, so that the transmission relationship between the driven pulley 130 and the driving pulley 129 becomes more stable.

[0048] In some embodiments, a mounting plate 127 is provided on the mounting frame 106 , and a clearance area 128 is formed between the mounting plate 127 and the mounting frame 106 . The transmission mechanism is located in the clearance area 128 , and the motor 123 is provided on the mounting plate 127 .

[0049] In actual use, the purpose of providing the mounting plate 127 is to facilitate the installation of the motor 123 , and the belt 131 will pass through the clearance area 128 and be sleeved on the driven pulley 130 .

[0050] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0051] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one such feature.

[0052] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0053] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fluidized bed drying device, characterized in that: It includes a fluidized bed body, an air intake device and an exhaust device; the air intake device and the exhaust device are respectively connected to the fluidized bed body; The fluidized bed body comprises a shell (101) and a rake and disperse assembly. The shell (101) is provided with a feed end (102), a discharge end (103), an air inlet (104) and an exhaust port (105). The air inlet (104) is connected to an air inlet device, and the exhaust port (105) is connected to an exhaust device. The raking and spreading component comprises a mounting frame (106), a raking and spreading roller (107), a driving structure and a tensioning structure. The mounting frame (106) is arranged inside the housing (101) and is located below the feed end (102). Moving blocks (108) are slidingly arranged on both sides of the mounting frame (106). A screw (109) is threadedly connected to the mounting frame (106). One end of the screw (109) away from the mounting frame (106) is rotatably connected to the moving block (108). The raking and spreading roller (107) is rotatably mounted on the moving block (108). The driving structure is used to drive the raking and spreading roller (107) to rotate. The tensioning structure is mounted on the moving block (108). The tensioning structure is used to tension the driving structure.

2. A fluidized bed drying device according to claim 1, characterized in that: The air intake device comprises a blower (110), a heater (111) and an air supply duct (112); the blower (110) is used to be installed on a plane; the heater (111) is connected to the air outlet end of the blower (110); the air intake duct is connected to the outlet end of the heater (111); and the outlet end of the air intake duct is connected to the side wall of the housing (101).

3. A fluidized bed drying device according to claim 2, characterized in that: The exhaust device includes an exhaust duct (113), an induced draft fan (114), a cyclone dust collector (115) and a bag dust collector (116), the exhaust duct (113) is installed at the top of the housing (101), the cyclone dust collector (115) is connected to the outlet end of the exhaust duct (113), the inlet end of the bag dust collector (116) is connected to the outlet end of the cyclone dust collector (115), and the outlet end of the bag dust collector (116) is connected to the induced draft fan (114) through an exhaust pipe; wherein the inlet end of the exhaust duct (113), the outlet end of the air supply duct and the inlet end of the exhaust pipe are all provided with filter screens.

4. The fluidized bed drying device according to claim 1, characterized in that: The invention also includes a screw feeder (117), which is arranged on one side of the fluidized bed body, and the outlet end of the screw feeder (117) is located above the feed end (102). The screw feeder (117) is used to feed the wet material into the interior of the shell (101) through the feed end (102).

5. The fluidized bed drying device according to claim 1, characterized in that: Sliding rails (118) are provided on both sides of the mounting frame (106), and the moving block (108) is slidably mounted on the sliding rails (118).

6. The fluidized bed drying device according to claim 1, characterized in that: The mounting frame (106) is also provided with a guide assembly, which includes a guide rod (119) and a guide hole (120). The guide hole (120) is provided on the mounting frame (106). The guide rod (119) is slidably installed inside the guide hole (120). The end of the guide rod (119) is fixedly connected to the moving block (108) away from one end of the screw rod (109).

7. The fluidized bed drying device according to claim 1, characterized in that: The raking roller (107) includes a roller body The roller body (121) and a plurality of raking and spreading claws (122) are provided. Both ends of the roller body (121) are rotatably mounted on the moving block (108), and the plurality of raking and spreading claws are fixedly mounted on the roller body (121).

8. The fluidized bed drying device according to claim 1, characterized in that: The driving structure comprises a motor (123) and a transmission mechanism, and the motor (123) is connected to the roller body (121) via the transmission mechanism.

9. The fluidized bed drying device according to claim 1, characterized in that: The tensioning structure comprises a slide cylinder (124), a support rod (125) and a tensioning wheel (126), wherein the slide cylinder (124) is mounted on the moving block (108), the support rod (125) is fixedly mounted on the movable end of the slide cylinder (124), and the tensioning wheel (126) is rotatably mounted on the support rod (125).

10. The fluidized bed drying device according to claim 8, characterized in that: A mounting plate (127) is provided on the mounting frame (106), a clearance area (128) is formed between the mounting plate (127) and the mounting frame (106), the transmission mechanism is located in the clearance area (128), and the motor (123) is provided on the mounting plate (127).

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