Steam tube nest rotary kiln drying machine for preparing curdlan

Abstract

A steam tube nest rotary kiln drying machine for preparing curdlan relates to the technical field of rotary kiln drying machines and comprises a fixing seat, a supporting frame is rotatably arranged at the top of the fixing seat, a rotary kiln body and two fixedly-arranged tube boxes are rotatably arranged at the top of the supporting frame, and the two ends of the rotary kiln body are correspondingly and rotatably connected with the two tube boxes. Fixed circular plates are fixedly arranged on the inner wall of the tube box, a plurality of rows of steam tube nests are arranged in the rotary kiln body, every two adjacent rows of steam tube nests are arranged in a staggered mode, a plurality of arc-shaped grooves are formed in the outer walls of the steam tube nests in the circumferential direction, the two ends of the steam tube nests located in the discharging area are correspondingly and rotationally connected with the two fixed circular plates, and the outer walls of the steam tube nests are sleeved with arc-shaped sleeves. And the two ends of the arc-shaped sleeve are correspondingly and detachably connected with the two fixed circular plates. The problem that the effective heat exchange time of materials in a blanking area of an existing steam tube nest rotary kiln drying machine and steam tube nests is short is solved. And the distribution uniformity of materials in a blanking area is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary kiln dryers, and particularly to a steam tube rotary kiln dryer for the preparation of curdlan. Background Art

[0002] Curdlan is a β-1,3-glucan polysaccharide produced by microbial fermentation, which has unique gel properties and thermal stability, and is widely used in the fields of food, medicine, and chemical industry. In the industrial preparation process of curdlan, the wet particles formed after the fermentation broth is extracted and purified need to be dried to reduce the moisture content and ensure the product stability. The steam tube rotary kiln dryer has become the preferred solution due to its high efficiency and uniform drying characteristics.

[0003] The steam tube rotary kiln dryer mainly consists of a rotary kiln body, steam tubes, a transmission device, and a steam system. When the steam tube rotary kiln dryer is in operation, the internal space of the rotary kiln body is divided into a feeding area and a collecting area. The steam tubes located below the kiln body are buried in the collecting area and directly contact the accumulated materials, and stably heat the materials by heat conduction. At the same time, during the continuous rotation of the rotary kiln body, the lifting plates arranged inside lift the materials from the collecting area to the upper part, and the materials fall under the action of gravity, forming a dynamic feeding area. During this process, the falling materials contact the steam tubes arranged in the feeding area, and heat exchange is achieved through heat convection and heat radiation.

[0004] In the process of using the existing steam tube rotary kiln dryer, deficiencies have gradually emerged, which are mainly manifested in the following aspects: First, the effective heat exchange time between the materials in the feeding area and the steam tubes is short. Specifically, during the operation of the steam tube rotary kiln dryer, the materials in the feeding area freely fall under the action of gravity and collide with the steam tubes. Due to the elastic effect between the materials and the surface of the tubes, the collided materials will be quickly bounced off and fall back to the collecting area after multiple rebounds. This dynamic process results in a very short actual effective contact time between the materials and the steam tubes, severely restricting the effective transfer of heat energy. Moreover, the repeated bouncing of the materials prolongs their residence time in the dryer, increasing the overall drying cycle and resulting in low drying efficiency.

[0005] Second, the material distribution uniformity in the blanking area is poor. Specifically, during the operation of the steam tube rotary kiln dryer, the rotary kiln body drives the lifting plates to rotate synchronously, lifting and transporting the materials in the aggregate area. When the lifting plate just leaves the aggregate area, the materials it carries start to continuously spill. By the time the lifting plate reaches the highest point, the materials it carries have basically fallen out. This phenomenon of premature material spillage leads to extremely uneven material distribution on both sides of the blanking area, with overly dense spillage on one side and overly sparse on the other. The uneven material distribution directly reduces the contact area between the steam tubes and the materials significantly, resulting in a remarkable decline in the heat transfer efficiency. Moreover, the uneven blanking distribution also causes uneven drying, affecting the consistency of the drying quality of the final product.

[0006] As can be seen from the above, there are obviously inconveniences and defects in the prior art during actual use, so it is necessary to make improvements. Summary of the Invention

[0007] Aiming at the defects in the prior art, the technical problem to be solved by the present invention is to provide a steam tube rotary kiln dryer for curdlan preparation. During the drying process of the materials by this equipment, the materials falling in the blanking area can maintain a continuous and stable contact state with the steam tubes, completely avoiding the phenomenon of materials bouncing off due to collision in traditional equipment, greatly increasing the effective heat exchange time between the materials and the surface of the steam tubes. Moreover, the surface of the steam tubes is always evenly covered by the materials, maximizing the utilization of the heating area and significantly improving the drying efficiency. This equipment can achieve uniform distribution and stable flow of materials in the blanking area. During the drying process, the materials fall evenly, forming a stable material curtain, ensuring that the area around the steam tubes is always evenly covered by the materials. This uniformly distributed material flow increases the effective contact area between the materials and the steam tubes, systematically improving the heat conduction efficiency. Moreover, the uniform material distribution avoids the phenomena of local overheating or insufficient drying, ensuring the consistency of the material drying quality.

[0008] To solve the above problems, the present invention provides the following technical solutions: A steam tube rotary kiln dryer for preparing curd rubber comprises a fixed seat, a support frame is rotatably provided on the top of the fixed seat, a rotatably arranged rotary kiln body and two fixedly arranged pipe boxes are provided on the top of the support frame, two ends of the rotary kiln body are correspondingly rotatably connected with the two pipe boxes, a fixed circular plate is fixedly provided on the inner wall of the pipe box, a plurality of rows of steam tubes are provided inside the rotary kiln body, the steam tubes of two adjacent rows are staggered, a plurality of arc grooves are provided on the outer wall of the steam tubes along the circumferential direction, two ends of the steam tubes located in the blanking area are correspondingly rotatably connected with the two fixed circular plates, and the outer wall of the steam tubes is provided with a plurality of arc grooves along the circumferential direction, The wall sleeve is provided with an arc sleeve, and the two ends of the arc sleeve are detachably connected to two fixed circular plates, and the two ends of the steam tubes located in the material collection area are fixedly connected to the two fixed circular plates, and the top of the arc sleeve is detachably provided with two material collection plates, and the outer wall of the arc sleeve side is provided with a discharge trough and a detachably arranged material guide arc plate, and the lower outer wall of the arc sleeve is fixedly connected with a fixed baffle, and the inside of the arc sleeve is provided with an arc ventilation groove, and the arc ventilation groove and the steam tubes are both connected to the external steam system, and the inner wall of the rotary kiln body is provided with a material guide component for lifting the material.

[0009] As an optimized solution, the material guide assembly includes a fixed arc plate fixedly connected to a fixed circular plate, two material blocking rings in frictional contact with the outer wall of the fixed arc plate are fixedly connected to the inner wall of the rotary kiln body, a number of material guide plates in frictional contact with the outer wall of the fixed arc plate are evenly distributed along the circumferential direction on the inner wall of the rotary kiln body, and both ends of the material guide plate are in contact with the two material blocking rings respectively, a material box is fixedly connected to the inner wall of the fixed arc plate, a material leakage groove is penetrated through the position of the inner wall of the fixed arc plate located in the material box, a number of material leakage holes are penetrated through the bottom of the material box, a driving rod is provided for horizontal reciprocating movement in the material box, and a number of material shifting plates are mounted on the outer wall of the driving rod.

[0010] As an optimized solution, the side wall of the retaining ring is evenly distributed with a plurality of fixedly arranged shifting plates along the circumferential direction, and both ends of the fixed arc-shaped plate are fixedly connected to two fixed circular plates via a plurality of connecting plates.

[0011] As an optimized solution, the outer walls of the two pipe boxes are respectively fixed with a feed valve and a discharge valve that are connected to each other.

[0012] As an optimized solution, a sliding L-shaped plate is horizontally slidably provided on the top of the fixed seat, a plurality of swing plates are provided between the sliding L-shaped plate and the support frame, the two ends of the swing plates are rotatably connected to the support frame and the sliding L-shaped plate respectively, two support plates for supporting the support frame are fixedly provided on the top of the fixed seat, two driving telescopic cylinders are fixedly provided on the top of the fixed seat, and the telescopic ends of the driving telescopic cylinders are fixedly connected to the sliding L-shaped plates.

[0013] As an optimized solution, two girth gears are fixedly sleeved on the outer wall of the rotary kiln body. A number of limiting supporting rollers that are in rolling connection with the girth gears are arranged at the top of the support frame. The girth gears are restricted within the limiting supporting rollers, and the tube box is fixedly connected to the support frame.

[0014] As an optimized solution, a driven gear ring is fixedly sleeved on the outer wall of the rotary kiln body. A driving motor is fixedly arranged at the top of the support frame, and a control gear that meshes with the driven gear ring is fixedly sleeved on the output shaft of the driving motor.

[0015] As an optimized solution, a number of rotary joints are fixedly arranged on the inner wall of the tube box. Both ends of the steam tubes located in the feeding area penetrate through the fixed circular plate and are fixedly connected to the rotating ends of the rotary joints. The other ends of the rotary joints are communicated with an external steam system. Both ends of the steam tubes located in the aggregate area pass through the fixed circular plate and the tube box and are communicated with the external steam system. Two air guide pipes that are communicated with the arc-shaped ventilation grooves are fixedly arranged on the outer wall of the arc-shaped sleeve. One end of the air guide pipe passes through the fixed circular plate and the tube box and is communicated with the external steam system.

[0016] As an optimized solution, a driven gear is fixedly sleeved on the outer wall of the steam tubes located in the feeding area. A number of servo motors are fixedly arranged at the end of one of the fixed circular plates, and a driving gear that meshes with the driven gear is fixedly sleeved on the output shaft of the servo motor.

[0017] As an optimized solution, a control board is arranged inside one of the tube boxes. One end of the driving rod passes through the feed box and the fixed circular plate and is fixedly connected to the control board. Two reciprocating telescopic cylinders are fixedly arranged on the inner wall of the tube box, and the telescopic ends of the reciprocating telescopic cylinders are fixedly connected to the control board.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. When drying materials, the hot steam provided by the external steam system passes through the steam tubes and the arc-shaped ventilation grooves in the arc-shaped sleeve, and then continuously exchanges heat with the steam tubes and the arc-shaped sleeve. The driving motor drives the rotary kiln body to rotate, thereby driving the material guiding plate and the baffle ring to rotate. When the material guiding plate passes through the opening area of the fixed arc plate, the materials in the aggregate area are filled into the area between two adjacent material guiding plates. When the material guiding plate rotates upward, it transports the materials. When the materials are transported to the highest position, they enter the material box through the leakage trough. At the same time, the reciprocating telescopic cylinder drives the material stirring plate to move back and forth, thereby stirring the materials in the material box, so that the materials are evenly distributed in the material box. The materials in the material box are evenly scattered downward through the leakage holes and are collected by the aggregate plates in the top row. The servo motor drives the steam tubes in the material dropping area to rotate. During the rotation of the steam tubes, the materials between the aggregate plates are continuously filled into the arc-shaped grooves. The materials in the arc-shaped grooves rotate with the steam tubes, and the materials continuously exchange heat with the steam tubes and the arc-shaped sleeve during the rotation. When the materials rotate to the discharge trough, they are discharged. During the process of discharging the materials through the guiding arc plate, the outer wall of the arc-shaped sleeve continuously exchanges heat with the materials. After the materials complete heat exchange with the first row of steam tubes, they fall downward and enter the second row of steam tubes for heat exchange. This cycle continues. After the materials complete heat exchange with the last row of steam tubes, they fall back into the aggregate area again. During the drying process of the materials by this equipment, the materials dropping in the material dropping area can maintain a continuous and stable contact state with the steam tubes, completely avoiding the phenomenon of materials colliding and bouncing in traditional equipment, greatly increasing the effective heat exchange time between the materials and the surface of the steam tubes, and the surface of the steam tubes is always evenly covered by the materials, maximizing the utilization of the heating area and greatly improving the drying efficiency; 2. This equipment can achieve the uniform distribution and stable flow of materials in the material dropping area. During the drying process, the materials fall evenly, forming a stable material curtain, ensuring that there is always an even material coverage around the steam tubes. This evenly distributed material flow increases the effective contact area between the materials and the steam tubes, systematically improving the heat conduction efficiency, and the even material distribution avoids the phenomena of local overheating or insufficient drying, ensuring the consistency of the material drying quality; 3. The arc-shaped grooves on the outer wall of the fixed steam tubes in the aggregate area increase the heat exchange area with the materials. During the drying process of the materials in the aggregate area by the steam tubes in the aggregate area, the rotating material guiding plate continuously transports the materials upward. The materials in the aggregate area move towards the notch of the fixed arc plate, and the materials continuously move and come into full contact with the surface of the steam tubes, thereby making the drying of the materials in the aggregate area more uniform; 4. During the drying process of the materials, the baffle ring drives the stirring plate to rotate, and the stirring plate flips the materials between the baffle ring and the fixed circular plate, thereby making the drying of the materials in this area more uniform. Description of the Drawings

[0019] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0020] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure inside the rotary kiln body of the present invention; Figure 3 It is a schematic diagram of the arrangement of the steam tubes of the present invention; Figure 4 It is a structural schematic diagram of the steam tube of the present invention; Figure 5 It is a schematic diagram of the structure inside the arc-shaped sleeve of the present invention; Figure 6 It is a schematic diagram of the structure of a part of the arc-shaped sleeve of the present invention; Figure 7 It is a structural schematic diagram of a fixed arc plate of the present invention; Figure 8 It is a schematic diagram of the structure between the rotary kiln body and the fixed arc plate of the present invention; Figure 9 It is a structural schematic diagram of the support frame of the present invention; Figure 10 It is a schematic diagram of the structure of fixing the end of the circular plate of the present invention.

[0021] In the figure: 1-fixed seat; 2-support frame; 3-pipe box; 4-feed valve; 5-driven gear ring; 6-rotary kiln body; 7-roller; 8-discharge valve; 9-limiting support wheel; 10-driving motor; 11-control gear; 12-steam tube; 13-fixed circular plate; 14-arc sleeve; 15-blocking ring; 16-material box; 17-displacing plate; 18-driving rod; 19-material guide assembly; 20-collecting plate; 21-displacing plate; 22-material guide plate; 2 3-connecting plate; 24-fixed arc plate; 25-leakage groove; 26-leakage hole; 27-arc groove; 28-air guide pipe; 29-arc ventilation groove; 30-fixed baffle; 31-discharge groove; 32-material guide arc plate; 33-driving gear; 34-servo motor; 35-rotating joint; 36-reciprocating telescopic cylinder; 37-control board; 38-driven gear; 39-driving telescopic cylinder; 40-sliding L-shaped plate; 41-swinging plate; 42-support plate. DETAILED DESCRIPTION

[0022] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0023] like Figures 1 to 10 As shown, a steam tube rotary kiln dryer for preparing curd rubber comprises a fixed seat 1, a support frame 2 is rotatably provided on the top of the fixed seat 1, a rotary kiln body 6 and two fixed pipe boxes 3 are rotatably provided on the top of the support frame 2, two ends of the rotary kiln body 6 are correspondingly rotatably connected with the two pipe boxes 3, a fixed circular plate 13 is fixedly provided on the inner wall of the pipe box 3, a plurality of rows of steam tubes 12 are provided inside the rotary kiln body 6, two adjacent rows of steam tubes 12 are staggered, a plurality of arc grooves 27 are provided on the outer wall of the steam tubes 12 along the circumferential direction, two ends of the steam tubes 12 located in the blanking area are correspondingly rotatably connected with the two fixed circular plates 13, and the outer wall thereof is sleeved with The arc sleeve 14 has two ends which are detachably connected to the two fixed circular plates 13, and the two ends of the steam tubes 12 in the material collection area are fixedly connected to the two fixed circular plates 13. The top of the arc sleeve 14 is detachably provided with two material collection plates 20, and the outer wall of the side of the arc sleeve 14 is provided with a discharge trough 31 which is penetrated and a detachably provided material guide arc plate 32. The lower outer wall of the arc sleeve 14 is fixedly connected with a fixed baffle 30, and the inside of the arc sleeve 14 is provided with an arc ventilation groove 29, and the arc ventilation groove 29 and the steam tubes 12 are both connected to the external steam system. The inner wall of the rotary kiln body 6 is provided with a material guide component 19 for lifting the material.

[0024] The material guide assembly 19 includes a fixed arc plate 24 fixedly connected to the fixed circular plate 13, two material blocking rings 15 are fixedly connected to the inner wall of the rotary kiln body 6 and are in frictional contact with the outer wall of the fixed arc plate 24, and a plurality of material guide plates 22 are evenly distributed along the circumferential direction on the inner wall of the rotary kiln body 6 and are in frictional contact with the outer wall of the fixed arc plate 24, and the two ends of the material guide plate 22 are in contact with the two material blocking rings 15 respectively, and a material box 16 is fixedly connected to the inner wall of the fixed arc plate 24, and a material leakage groove 25 is penetrated through the position of the inner wall of the fixed arc plate 24 located in the material box 16, and a plurality of material leakage holes 26 are penetrated at the bottom of the material box 16, and a driving rod 18 is provided in the material box 16 for horizontal reciprocating movement, and a plurality of material shifting plates 17 are mounted on the outer wall of the driving rod 18.

[0025] A plurality of fixedly arranged shifting plates 21 are evenly distributed on the side wall of the retaining ring 15 along the circumferential direction, and both ends of the fixed arc-shaped plate 24 are fixedly connected to the two fixed circular plates 13 via a plurality of connecting plates 23 .

[0026] The outer walls of the two pipe boxes 3 are respectively fixed with a feed valve 4 and a discharge valve 8 which are connected and arranged in communication.

[0027] A sliding L-shaped plate 40 is horizontally slidably provided on the top of the fixed seat 1. A number of swing plates 41 are provided between the sliding L-shaped plate 40 and the support frame 2. The two ends of the swing plate 41 are respectively rotatably connected to the support frame 2 and the sliding L-shaped plate 40. Two support plates 42 for supporting the support frame 2 are fixedly provided on the top of the fixed seat 1.

[0028] Two driving telescopic cylinders 39 are fixedly provided on the top of the fixed seat 1. The telescopic end of the driving telescopic cylinder 39 is fixedly connected to the sliding L-shaped plate 40.

[0029] Two girth gears 7 are fixedly sleeved on the outer wall of the rotary kiln body 6. A number of limiting supporting wheels 9 that are in rolling connection with the girth gears 7 are provided on the top of the support frame 2. The girth gears 7 are restricted within the limiting supporting wheels 9. The pipe box 3 is fixedly connected to the support frame 2.

[0030] A driven gear ring 5 is fixedly sleeved on the outer wall of the rotary kiln body 6. A driving motor 10 is fixedly provided on the top of the support frame 2. A control gear 11 that meshes with the driven gear ring 5 is fixedly sleeved on the output shaft of the driving motor 10.

[0031] A number of rotary joints 35 are fixedly provided on the inner wall of the pipe box 3. Both ends of the steam tubes 12 located in the feeding area penetrate through the fixed circular plate 13 and are fixedly connected to the rotating ends of the rotary joints 35. The other ends of the rotary joints 35 are connected to the external steam system in communication. Both ends of the steam tubes 12 located in the collecting area pass through the fixed circular plate 13 and the pipe box 3 and are connected to the external steam system in communication. Two air guide pipes 28 that are in communication with the arc-shaped ventilation grooves 29 are fixedly provided on the outer wall of the arc-shaped sleeve 14. One end of the air guide pipe 28 passes through the fixed circular plate 13 and the pipe box 3 and is connected to the external steam system in communication.

[0032] A driven gear 38 is fixedly sleeved on the outer wall of the steam tubes 12 located in the feeding area. A number of servo motors 34 are fixedly provided at the end of one of the fixed circular plates 13. A driving gear 33 that meshes with the driven gear 38 is fixedly sleeved on the output shaft of the servo motor 34.

[0033] A control board 37 is provided inside one of the pipe boxes 3. One end of the driving rod 18 passes through the feed box 16 and the fixed circular plate 13 and is fixedly connected to the control board 37. Two reciprocating telescopic cylinders 36 are fixedly provided on the inner wall of the pipe box 3. The telescopic ends of the reciprocating telescopic cylinders 36 are fixedly connected to the control board 37.

[0034] Above the A line is the feeding area, and below the A line is the collecting area.

[0035] The working principle of this device is as follows: When drying materials, the hot steam provided by the external steam system passes through the steam tubes 12 and the arc-shaped ventilation grooves 29 in the arc-shaped sleeve 14, and then continuously exchanges heat with the steam tubes 12 and the arc-shaped sleeve 14. The driving motor 10 drives the rotary kiln body 6 to rotate, and then drives the material guiding plate 22 and the baffle ring 15 to rotate. When the material guiding plate 22 passes through the opening area of the fixed arc plate 24, the materials in the aggregate area fill the area between two adjacent material guiding plates 22. When the material guiding plate 22 rotates upward, it transports the materials. When the materials are transported to the highest position, they enter the material box 16 through the leakage trough 25. At the same time, the reciprocating telescopic cylinder 36 drives the material stirring plate 17 to reciprocate, and then stirs the materials in the material box 16, so that the materials are evenly distributed in the material box 16. The materials in the material box 16 are evenly scattered downward through the leakage holes 26 and are collected by the aggregate plates 20 in the top row. The servo motor 34 drives the steam tubes 12 in the material dropping area to rotate. During the rotation of the steam tubes 12, the materials between the aggregate plates 20 continuously fill into the arc-shaped grooves 27. The materials in the arc-shaped grooves 27 rotate with the steam tubes 12, and the materials continuously exchange heat with the steam tubes 12 and the arc-shaped sleeve 14 during the rotation. When the materials rotate to the discharge trough 31, they are discharged. During the discharging process of the materials through the guiding arc plate 32, the outer wall of the arc-shaped sleeve 14 continuously exchanges heat with the materials. After the materials complete heat exchange with the first row of steam tubes 12, they fall downward and enter the second row of steam tubes 12 for heat exchange. In this cycle, after the materials complete heat exchange with the last row of steam tubes 12, they fall back to the aggregate area again. During the drying process of the materials by this equipment, the materials falling in the material dropping area can maintain a continuous and stable contact state with the steam tubes 12, completely avoiding the phenomenon of materials colliding and bouncing in traditional equipment, greatly increasing the effective heat exchange time between the materials and the surface of the steam tubes 12, and the surface of the steam tubes 12 is always evenly covered by the materials, maximizing the utilization of the heating area and greatly improving the drying efficiency; This equipment can realize the uniform distribution and stable flow of materials in the material dropping area. During the drying process, the materials fall evenly, forming a stable material curtain, ensuring that there is always an even material coverage around the steam tubes 12. This evenly distributed material flow increases the effective contact area between the materials and the steam tubes 12, systematically improving the heat conduction efficiency, and the even material distribution avoids the phenomena of local overheating or insufficient drying, ensuring the consistency of the material drying quality; The arc-shaped grooves 27 on the outer wall of the fixed steam tubes 12 in the aggregate area increase the heat exchange area with the materials. During the drying process of the materials in the aggregate area by the steam tubes 12 in the aggregate area, the rotating material guiding plate 22 continuously transports the materials upward. The materials in the aggregate area move towards the notch of the fixed arc plate 24, and the materials continuously move and come into full contact with the surface of the steam tubes 12, so that the materials in the aggregate area are dried more evenly; During the drying process of the material, the baffle ring 15 drives the deflector plate 21 to rotate, and the deflector plate 21 flips the material between the baffle ring 15 and the fixed circular plate 13, thereby making the drying of the material in this area more uniform; After the material drying is completed, the driving telescopic cylinder 39 drives the sliding L-shaped plate 40 to slide, and the support frame 2 rotates upward to lift the feeding end of the equipment. The limiting supporting wheel 9 restricts the rolling ring 7 to prevent it from generating axial sliding. The discharge valve 8 is opened, and at the same time, the rotary kiln body 6 continues to rotate. The material in the rotary kiln body 6 is discharged through the discharge valve 8. After the material discharge is completed, the material to be dried is added through the feed valve 4.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. A steam tube rotary kiln dryer for curdlan preparation, characterized in that: The invention comprises a fixed seat (1), a support frame (2) being rotatably provided on the top of the fixed seat (1), a rotatably provided rotary kiln body (6) and two fixedly provided pipe boxes (3) being provided on the top of the support frame (2), two ends of the rotary kiln body (6) being correspondingly rotatably connected to the two pipe boxes (3), a fixed circular plate (13) being fixedly provided on the inner wall of the pipe box (3), a plurality of rows of steam tubes (12) being provided inside the rotary kiln body (6), the steam tubes (12) of two adjacent rows being arranged in a staggered manner, a plurality of arc grooves (27) being provided on the outer wall of the steam tubes (12) along the circumferential direction, two ends of the steam tubes (12) being located in the blanking area being correspondingly rotatably connected to the two fixed circular plates (13), and an arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the outer wall of the steam tubes (12), the arc sleeve (14) being sleeved on the inner ... The two ends of the sleeve (14) are detachably connected to the two fixed circular plates (13), the two ends of the steam tubes (12) located in the material collection area are fixedly connected to the two fixed circular plates (13), the top of the arc sleeve (14) is detachably provided with two material collection plates (20), the side outer wall of the arc sleeve (14) is provided with a material discharge groove (31) penetrating therethrough and a detachably provided material guide arc plate (32), the lower outer wall of the arc sleeve (14) is fixedly connected with a fixed baffle (30), the arc sleeve (14) is provided with an arc ventilation groove (29) inside, the arc ventilation groove (29) and the steam tubes (12) are both connected to an external steam system, and the inner wall of the rotary kiln body (6) is provided with a material guide component (19) for lifting the material.

2. The steam tube rotary kiln dryer for curdlan preparation according to claim 1, characterized in that: The material guide assembly (19) comprises a fixed arc plate (24) fixedly connected to the fixed circular plate (13); two material blocking rings (15) are fixedly connected to the inner wall of the rotary kiln body (6) and are in frictional contact with the outer wall of the fixed arc plate (24); a plurality of material guide plates (22) are evenly distributed along the circumferential direction on the inner wall of the rotary kiln body (6) and are in frictional contact with the outer wall of the fixed arc plate (24); two ends of the material guide plates (22) are in contact with the two material blocking rings (15) respectively; a material box (16) is fixedly connected to the upper inner wall of the fixed arc plate (24); a material leakage groove (25) is penetrated through the inner wall of the fixed arc plate (24) located in the material box (16); a plurality of material leakage holes (26) are penetrated through the bottom of the material box (16); a driving rod (18) is provided in the material box (16) for horizontal reciprocating movement; a plurality of material shifting plates (17) are sleeved on the outer wall of the driving rod (18).

3. The steam tube rotary kiln dryer for curdlan preparation according to claim 2, wherein: The side wall of the retaining ring (15) is evenly distributed with a plurality of fixedly arranged shifting plates (21) along the circumferential direction, and both ends of the fixed arc-shaped plate (24) are fixedly connected to the two fixed circular plates (13) via a plurality of connecting plates (23).

4. The steam tube rotary kiln dryer for curdlan preparation according to claim 1, characterized in that: An inlet valve (4) and an outlet valve (8) are respectively fixedly provided on the outer walls of the two pipe boxes (3) and are connected to each other.

5. A steam tube rotary kiln dryer for curdlan preparation according to claim 1, characterized in that: A sliding L-shaped plate (40) is horizontally slidably arranged on the top of the fixed seat (1). A number of swing plates (41) are arranged between the sliding L-shaped plate (40) and the support frame (2). The two ends of the swing plate (41) are respectively rotatably connected to the support frame (2) and the sliding L-shaped plate (40). Two support plates (42) for supporting the support frame (2) are fixedly arranged on the top of the fixed seat (1). Two driving telescopic cylinders (39) are fixedly arranged on the top of the fixed seat (1). The telescopic end of the driving telescopic cylinder (39) is fixedly connected to the sliding L-shaped plate (40).

6. The steam tube rotary kiln dryer for curdlan preparation according to claim 1, characterized in that: Two girth gears (7) are fixedly sleeved on the outer wall of the rotary kiln body (6). A number of limiting supporting rollers (9) that are in rolling connection with the girth gears (7) are arranged on the top of the support frame (2). The girth gears (7) are restricted within the limiting supporting rollers (9). The pipe box (3) is fixedly connected to the support frame (2).

7. The steam tube rotary kiln dryer for curdlan preparation according to claim 6, wherein: A driven gear ring (5) is fixedly sleeved on the outer wall of the rotary kiln body (6). A driving motor (10) is fixedly arranged on the top of the support frame (2). A control gear (11) that is meshed with the driven gear ring (5) is fixedly sleeved on the output shaft of the driving motor (10).

8. A steam tube rotary kiln dryer for curdlan preparation according to claim 1, characterized in that: A number of rotary joints (35) are fixedly arranged on the inner wall of the pipe box (3). Both ends of the steam tubes (12) located in the feeding area penetrate through the fixed circular plate (13) and are fixedly connected to the rotating ends of the rotary joints (35). The other ends of the rotary joints (35) are communicated with an external steam system. Both ends of the steam tubes (12) located in the aggregate area pass through the fixed circular plate (13) and the pipe box (3) and are communicated with the external steam system. Two air guide pipes (28) that are communicated with the arc-shaped ventilation grooves (29) are fixedly arranged on the outer wall of the arc-shaped sleeve (14). One end of the air guide pipe (28) passes through the fixed circular plate (13) and the pipe box (3) and is communicated with the external steam system.

9. A steam tube rotary kiln dryer for curdlan preparation according to claim 8, characterized in that: A driven gear (38) is fixedly sleeved on the outer wall of the steam tubes (12) located in the feeding area. A number of servo motors (34) are fixedly arranged at the end of one of the fixed circular plates (13). A driving gear (33) that is meshed with the driven gear (38) is fixedly sleeved on the output shaft of the servo motor (34).

10. A steam tube rotary kiln dryer for curdlan preparation according to claim 2, characterized in that: A control board (37) is arranged inside one of the pipe boxes (3). One end of the driving rod (18) passes through the feed box (16) and the fixed circular plate (13) and is fixedly connected to the control board (37). Two reciprocating telescopic cylinders (36) are fixedly arranged on the inner wall of the pipe box (3). The telescopic ends of the reciprocating telescopic cylinders (36) are fixedly connected to the control board (37).

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