Tube bundle heater for vibrated fluidized bed dryer

Abstract

The utility model discloses a tube bundle heater for a vibrated fluidized bed dryer, which belongs to the technical field of vibrated fluidized bed dryers, solves the problem that heating gas in the tube bundle heater of the conventional vibrated fluidized bed cannot be fully attached to the outer wall of a cold air conveying pipeline, and comprises a tube body, a tube head, a tube tail and an air inlet tube. By arranging the heating mechanism, a traditional conveying path of heated gas is changed, a wave mode is changed into a threaded movement mode, the contact time of the heated gas and the outer wall of a pipeline for conveying cold air can be prolonged, the conveying path of the heated gas in the pipe body can be prolonged, the heated gas is made to make full and comprehensive contact with the outer wall of the pipeline for conveying the cold air, and the heating efficiency is improved. The pipeline fully absorbs heat in the heated gas, the heat conduction effect is more stable, the subsequently heated gas is input into the vibrated fluidized bed, and materials in the vibrated fluidized bed can be better dried, so that the stability of equipment during operation is enhanced.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibrating fluidized bed dryers, and in particular relates to a tube bundle heater for vibrating fluidized bed dryers. Background Art

[0002] Vibrating fluidized bed dryer, referred to as vibrating fluidized bed, is a new type of fluidized high-efficiency drying equipment suitable for drying granular and powdered materials. It has the advantages of easy operation, energy saving, and environmental protection. Vibrating fluidized bed is a new type of equipment that has gradually developed and expanded its application in the past decade. It is increasingly becoming the main type of drying equipment. Now during the use of the vibrating fluidized bed, a tube bundle heater will be installed on the side to transport the heated gas into the vibrating fluidized bed, so that the material inside the vibrating fluidized bed is fully in contact with the heated gas, and the material in the vibrating fluidized bed is dried.

[0003] Chinese utility model patent CN220437064U discloses a tube bundle heater for a vibrating fluidized bed dryer, comprising a bed body; a plurality of through holes symmetrically arranged up and down are provided on the side surface of one end of the bed body; U-shaped tubes are inserted into the corresponding through holes; joints are symmetrically arranged up and down at the interface of the U-shaped tube; a cavity is provided in the joint; hot air then re-enters from a second hose to form a cycle, during which the bed body vibrates continuously to shake the material, and the material contacts the U-shaped tube to complete heat exchange, thereby achieving the purpose of drying the material.

[0004] The above design can stably heat and dry the materials inside the vibrating fluidized bed through the cooperation of the U-shaped tube and the hot air box. However, this design has certain problems in actual use. Specifically, the contact area between the heated gas and the materials inside the vibrating fluidized bed is limited, and the materials inside the vibrating fluidized bed cannot be heated comprehensively. The heating area is limited to the part where the materials are in contact with the U-shaped tube. The overall heating effect is not good, and the heating area is limited, which affects the overall heating and drying effects. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems raised in the above background technology, the utility model adopts the following technical solutions.

[0007] A tube bundle heater for a vibrating fluidized bed dryer comprises a tube body, a tube head, a tube tail and an air inlet pipe, wherein the tube head is fixedly mounted on the left side of the tube body, and the tube tail is fixedly mounted on the side of the tube body away from the tube head, an air inlet pipe is fixedly mounted on the upper surface of the tube body, and an injection groove is provided in the air inlet pipe and the inside of the tube body, a heating mechanism is fixedly mounted inside the tube body, the heating mechanism comprises an air outlet baffle, an air inlet baffle and a heating assembly, the air outlet baffle is fixedly mounted inside the tube body, and the air inlet baffle is fixedly mounted inside the tube body, and the air inlet baffle is mounted on the side close to the tube tail, and a heating assembly is fixedly mounted between the air outlet baffle and the air inlet baffle.

[0008] As a preferred technical solution of the present utility model, the heating assembly also includes a cold air delivery pipe and a spiral guide plate. The spiral guide plate is fixedly installed inside the pipe body, and the spiral guide plate is arranged between the air outlet baffle and the air inlet baffle. The outer wall of the spiral guide plate is fixedly connected to the inner wall of the pipe body. After the cold air delivery pipe passes through the spiral guide plate, the two ends are respectively fixedly connected to the air outlet baffle and the air inlet baffle.

[0009] As an optimal technical solution of the utility model, the tube bundle heater also includes a discharge pipe, a circulation groove and a heating groove. A circulation groove is opened on the outer wall of the tube body, a heating groove is opened inside the tube body, the circulation groove is connected with the heating groove, the discharge pipe is fixedly installed at the bottom end of the outer wall of the tube body, and the discharge groove inside the discharge pipe is connected with the heating groove.

[0010] As an optimal technical solution of the utility model, the tube bundle heater also includes a guide plate, which includes a deflection ring, which is fixedly installed inside the heating tank at equal distances, and the deflection ring is installed on the inner wall surface of the heating tank, and there is a distance between the top of the deflection ring and the upper end of the heating tank.

[0011] As a preferred technical solution of the utility model, the guide plate also includes a guiding part and a blocking part. The guide part is arranged on the side of the deflection ring. The guide part is inclined as a whole, and there is a gap between the guide part and the upper surface of the inner wall of the heating groove. The blocking part is arranged on one end of the side of the deflection ring away from the guide part.

[0012] As a preferred technical solution of the utility model, the tube tail also includes a right shell, an output pipe, an output groove and a heat insulation component. The right shell is fixedly installed on the side of the tube body, the output pipe is fixedly installed on the end of the right shell, an output groove is opened inside the right shell, the output groove is connected to the internal groove of the output pipe, and the heat insulation component is fixedly installed on the inner wall of the output groove.

[0013] As a preferred technical solution of the utility model, the thermal insulation assembly includes a thermal insulation block and a calibration plate. The thermal insulation block is fixedly mounted on the inner wall of the output slot, and the calibration plate is fixedly mounted on the upper surface of the thermal insulation block at equal distances.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) In the utility model, by setting a heating mechanism, the traditional heating gas delivery path is changed from wave-like to threaded movement, which can prolong the contact time between the heating gas and the outer wall of the pipeline for conveying cold air, prolong the delivery path of the heating gas inside the pipe body, and allow the heating gas to fully and comprehensively contact the outer wall of the pipeline for conveying cold air. The pipeline fully absorbs the internal heat of the heating gas, and the heat conduction effect is more stable. The gas that has been heated is subsequently input into the vibrating fluidized bed. The gas is in comprehensive contact with the material, which can better dry the material inside the vibrating fluidized bed, thereby enhancing the stability of the equipment during operation;

[0016] (2) In the utility model, by providing a guide plate, a heating groove and a circulation groove, the heated gas that has completed heat conduction is input into the heating groove inside the pipe body, and the residual heat in this type of gas is used to heat the temperature of the entire pipe body, thereby reducing the heat loss when the gas inside the spiral guide plate contacts the inner wall of the pipe body, and the heated gas is recycled to ensure the stability of the equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model.

[0018] Figure 2 It is a cross-sectional view of the internal structure of the tube body of the utility model.

[0019] Figure 3 It is a three-dimensional diagram of the heating mechanism structure of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the heating component in the utility model.

[0021] Figure 5 It is a schematic diagram of the structure inside the tube body of the utility model.

[0022] Figure 6 It is a structural schematic diagram of the guide plate in the utility model.

[0023] Figure 7 It is a structural schematic diagram of the pipe tail in the utility model.

[0024] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0025] 1. Tube body; 2. Tube head; 3. Tube tail; 31. Right side shell; 32. Output pipe; 33. Output slot; 34. Heat insulation assembly; 341. Heat insulation block; 342. Calibration plate; 4. Air inlet pipe; 5. Heating mechanism; 51. Air outlet baffle; 52. Air inlet baffle; 53. Heating assembly; 531. Cold air delivery pipe; 532. Spiral guide plate; 6. Discharge pipe; 7. Circulation slot; 8. Heating slot; 9. Guide plate; 91. Deflection ring; 92. Guide part; 93. Blocking part. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0029] Depend on Figure 1 , Figure 2 and Figure 3 As shown, a tube bundle heater for a vibrating fluidized bed dryer comprises a tube body 1, a tube head 2, a tube tail 3 and an air inlet pipe 4, wherein the tube head 2 is fixedly mounted on the left side of the tube body 1, and the tube tail 3 is fixedly mounted on the side of the tube body 1 away from the tube head 2, the air inlet pipe 4 is fixedly mounted on the upper surface of the tube body 1, and the air inlet pipe 4 and the tube body 1 are provided with an injection groove together, a heating mechanism 5 is fixedly mounted inside the tube body 1, the heating mechanism 5 comprises an air outlet baffle 51, an air inlet baffle 52 and a heating assembly 53, the air outlet baffle 51 is fixedly mounted inside the tube body 1, and the air inlet baffle 52 is fixedly mounted inside the tube body 1, and the air inlet baffle 52 is mounted on the side close to the tube tail 3, and a heating assembly 53 is fixedly mounted between the air outlet baffle 51 and the air inlet baffle 52.

[0030] During use, the cold air to be heated is input into the tube body 1 through the tube head 2. At this time, the cold air will automatically enter the spherical groove between the tube head 2 and the tube body 1. The external gas of the tube head 2 is continuously input to continuously squeeze the gas inside the spherical groove. The gas inside the spherical groove will automatically pass through the air inlet baffle 52 to enter the heating component 53. Then, through the use of the air inlet pipe 4, the heated gas is input into the heating mechanism 5 through the injection groove to heat the gas inside the heating component 53. After the heating is completed, the treated gas passes through the air outlet baffle 51 to enter the tube tail 3, and is input into the vibrating fluidized bed through the tube tail 3, so that the heated gas can fully contact with the material inside the vibrating fluidized bed, and the heat in the treated gas is used to complete the drying process of the material.

[0031] By the attached Figure 4 As shown, in this embodiment, the heating component 53 also includes a cold air delivery pipe 531 and a spiral guide plate 532. The spiral guide plate 532 is fixedly installed inside the tube body 1, and the spiral guide plate 532 is arranged between the air outlet baffle 51 and the air inlet baffle 52. The outer wall of the spiral guide plate 532 is fixedly connected to the inner wall of the tube body 1. After the cold air delivery pipe 531 passes through the spiral guide plate 532, the two ends are respectively fixedly connected to the air outlet baffle 51 and the air inlet baffle 52.

[0032] During use, the cold air delivery pipe 531 can automatically receive the cold air passing through the air intake baffle 52, and the cold air automatically moves along the inner wall of the cold air delivery pipe 531. At this time, the heated gas input into the air intake pipe 4 will enter the pipe body 1. Under the limitation and blocking of the spiral guide plate 532, the heated gas can only move in a spiral shape along the outer surface of the spiral guide plate 532. In the process of the movement of the heated gas, it will automatically contact the outer wall of the cold air delivery pipe 531. In the process of the spiral guide plate 532 assisting the movement of the heated gas, it can extend the delivery path of the heated gas inside the pipe body 1 and expand the contact area between the heated gas and the outer wall of the cold air delivery pipe 531. The cold air delivery pipe 531 will stably and efficiently absorb the heat in the heating gas, thereby heating the cold air inside the cold air delivery pipe 531 and heating the cold air that originally did not meet the temperature requirements to the target temperature.

[0033] By the attached Figure 5 As shown, in this embodiment, the tube bundle heater also includes a discharge pipe 6, a circulation groove 7 and a heating groove 8. The inner wall of the tube body 1 is provided with a circulation groove 7, and the inside of the tube body 1 is provided with a heating groove 8. The circulation groove 7 is connected with the heating groove 8. The discharge pipe 6 is fixedly installed at the bottom end of the outer wall of the tube body 1, and the discharge groove inside the discharge pipe 6 is connected with the heating groove 8.

[0034] During use, when the heating gas moves along the outer surface of the spiral guide plate 532 to the area close to the air intake baffle 52, it is pushed by the subsequent input heating and stably passes through the circulation groove 7 into the heating groove 8. At this time, the residual and unabsorbed heat inside this batch of gases will heat the inner wall of the tube body 1, and heat the entire tube body 1, thereby increasing the temperature of the inner wall of the tube body 1 itself. When the subsequent heating gas contacts the inner wall of the tube body 1, the heat loss can be reduced. After that, the gas will be discharged through the exhaust pipe 6, thereby realizing multiple utilization of the heating gas and making full use of the internal heat of the heating gas.

[0035] By the attached Figure 6 As shown, in this embodiment, the device also includes a guide plate 9, which includes a deflection ring 91, a guide portion 92 and a blocking portion 93. The deflection ring 91 is fixedly installed inside the heating groove 8 at equal intervals. The deflection ring 91 is installed on the inner wall surface of the heating groove 8, and there is a distance between the top of the deflection ring 91 and the upper end of the inner part of the heating groove 8. The side of the deflection ring 91 is provided with a guide portion 92, and the guide portion 92 is inclined as a whole, and there is a gap between the guide portion 92 and the upper surface of the inner wall of the heating groove 8. The blocking portion 93 is provided at the end of the side of the deflection ring 91 away from the guide portion 92.

[0036] During use, when the heating gas enters the heating tank 8, the guide part 92 on the side of the deflection ring 91 is used to guide the flow direction of the heating gas, and the inclined surface of the guide part 92 itself is used to allow the gas to automatically move upward, forcing the heating gas to contact the inner wall of the tube body 1. The tube body 1 can absorb the heat remaining in the heating gas, and the temperature of the shell of the tube body 1 gradually rises, reducing the heat loss when the heating gas input into the air inlet pipe 4 contacts the inner wall of the tube body 1. The use of the blocking part 93 can prevent part of the gas from flowing back, and the gas inside the auxiliary heating tank 8 is quickly discharged through the exhaust pipe 6.

[0037] By the attached Figure 7 As shown, in this embodiment, the tube tail 3 also includes a right shell 31, an output pipe 32, an output groove 33 and a heat insulation component 34. The right shell 31 is fixedly installed on the side of the tube body 1, and the output pipe 32 is fixedly installed on the end of the right shell 31. An output groove 33 is opened inside the right shell 31, and the output groove 33 is connected to the internal groove of the output pipe 32. The heat insulation component 34 is fixedly installed on the inner wall of the output groove 33.

[0038] During use, the gas inside the cold air delivery pipe 531 will be heated and will pass through the air outlet baffle 51 into the output slot 33. At this time, the presence of the heat insulation component 34 can add a protective layer between the gas and the inner wall of the output slot 33 to prevent the gas from contacting the inner wall of the output slot 33 and part of the heat inside the gas from being absorbed by the output slot 33. The use of the heat insulation component 34 can help the heated gas to stably pass through the output pipe 32 and enter the vibrating fluidized bed, thereby reducing heat loss.

[0039] By the attached Figure 7 As shown, in this embodiment, the thermal insulation assembly 34 includes a thermal insulation block 341 and a calibration plate 342. The thermal insulation block 341 is fixedly mounted on the inner wall of the output slot 33, and the calibration plate 342 is fixedly mounted on the upper surface of the thermal insulation block 341 at an equal distance.

[0040] During use, the use of the insulation block 341 can shield the inner wall of the output groove 33 to prevent the heated gas from contacting the inner wall of the output groove 33. At this time, the insulation block 341 can be made of a metal material with poor thermal conductivity to reduce heat loss. In the process of gas transportation, the installation of the calibration plate 342 can guide the movement path of the gas, and assist the gas to accurately enter the output pipe 32, thereby accelerating the speed of gas transportation and preventing the gas from existing in the output groove 33 for too long, and automatically losing the internal heat, thereby ensuring that the heated gas stably enters the vibrating fluidized bed and dries the material in the vibrating fluidized bed.

[0041] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A tube bundle heater for a vibrating fluidized bed dryer, comprising a tube body (1), a tube head (2), a tube tail (3) and an air inlet pipe (4), wherein the tube head (2) is fixedly mounted on the left side of the tube body (1), and the tube tail (3) is fixedly mounted on the side of the tube body (1) away from the tube head (2), and the air inlet pipe (4) is fixedly mounted on the upper surface of the tube body (1), and an injection groove is provided in the air inlet pipe (4) and the tube body (1), characterized in that: A heating mechanism (5) is fixedly installed inside the tube body (1), and the heating mechanism (5) comprises an air outlet baffle (51), an air inlet baffle (52) and a heating component (53). The air outlet baffle (51) is fixedly installed inside the tube body (1), and the air inlet baffle (52) is fixedly installed inside the tube body (1), and the air inlet baffle (52) is installed on a side close to the tube tail (3), and the heating component (53) is fixedly installed between the air outlet baffle (51) and the air inlet baffle (52).

2. The tube bundle heater for a vibrating fluidized bed dryer according to claim 1, characterized in that: The heating component (53) further comprises a cold air delivery pipe (531) and a spiral guide plate (532); the spiral guide plate (532) is fixedly mounted inside the pipe body (1), and the spiral guide plate (532) is arranged between the air outlet baffle (51) and the air inlet baffle (52); the outer wall of the spiral guide plate (532) is fixedly connected to the inner wall of the pipe body (1); and the cold air delivery pipe (531) passes through the spiral guide plate (532) and its two ends are respectively fixedly connected to the air outlet baffle (51) and the air inlet baffle (52).

3. The tube bundle heater for a vibrating fluidized bed dryer according to claim 1, characterized in that: The tube bundle heater further comprises a discharge pipe (6), a circulation groove (7) and a heating groove (8); the inner wall of the tube body (1) is provided with a circulation groove (7); the interior of the tube body (1) is provided with a heating groove (8); the circulation groove (7) is connected to the heating groove (8); the discharge pipe (6) is fixedly mounted at the bottom end of the outer wall of the tube body (1); and the discharge groove inside the discharge pipe (6) is connected to the heating groove (8).

4. The tube bundle heater for a vibrating fluidized bed dryer according to claim 3, characterized in that: The tube bundle heater further comprises a guide plate (9), the guide plate (9) comprising a deflection ring (91), the deflection ring (91) being fixedly installed at equal intervals inside the heating tank (8), the deflection ring (91) being installed on the inner wall surface of the heating tank (8), and a distance between the top end of the deflection ring (91) and the upper end of the interior of the heating tank (8).

5. The tube bundle heater for a vibrating fluidized bed dryer according to claim 4, characterized in that: The guide plate (9) further comprises a guide portion (92) and a blocking portion (93); the guide portion (92) is arranged on the side of the deflection ring (91); the guide portion (92) is in an inclined state as a whole, and there is a gap between the guide portion (92) and the upper surface of the inner wall of the heating groove (8); the blocking portion (93) is arranged at one end of the side of the deflection ring (91) away from the guide portion (92).

6. The tube bundle heater for a vibrating fluidized bed dryer according to claim 1, characterized in that: The tube tail (3) further comprises a right side shell (31), an output pipe (32), an output groove (33) and a heat insulation component (34); the right side shell (31) is fixedly mounted on the side of the tube body (1); the output pipe (32) is fixedly mounted on the end of the right side shell (31); an output groove (33) is provided inside the right side shell (31); the output groove (33) is communicated with a groove inside the output pipe (32); and the heat insulation component (34) is fixedly mounted on the inner wall of the output groove (33).

7. The tube bundle heater for a vibrating fluidized bed dryer according to claim 6, characterized in that: The heat insulation assembly (34) comprises a heat insulation block (341) and a calibration plate (342); the heat insulation block (341) is fixedly mounted on the inner wall of the output slot (33); and the calibration plate (342) is fixedly mounted at equal distances on the upper surface of the heat insulation block (341).

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