Indirect type rotary roller heat conduction oil drying equipment system

Abstract

The utility model provides an indirect type rotary drum heat conduction oil drying equipment system, which relates to the technical field of dryers and comprises a base, an inclination adjusting blanking mechanism is arranged at the top of the base and comprises a movable bottom plate, a mounting frame is fixedly connected to the top of the movable bottom plate, and a rotary drum is rotatably mounted on the inner surface of the mounting frame. According to the drying system, an indirect type rotary roller heat conduction oil drying mode is adopted, an internal heat conduction oil pipe is heated through heat conduction oil, then wet materials are dried through heat conduction of the heat conduction oil pipe, and the problems that in the prior art, the technology that hot air is conducted to the materials for drying is adopted, the needed air amount is large, and the drying efficiency is high are solved. The problems that due to the fact that the discharge pressure is large, the quality of a dried product is controlled through hot air at two temperatures, the moisture of the dried material is too high, and product particles are prone to being broken in the drying process frequently occur.

Description

Technical Field

[0001] This utility model relates to the field of dryer technology, and in particular to an indirect rotary drum heat transfer oil drying equipment system. Background Technology

[0002] A rotary drum dryer is a drying device with a slightly inclined drum that rotates continuously. Wet material enters from the top of the drum. Due to the inclined design, the material moves to the other end under the influence of gravity and rotation. Hot air enters from either the feed or discharge end and exchanges heat with the wet material, while cool air exits from the other end. Dry material is collected from the bottom of the drum. The heat source for drying the material is typically hot air or high-temperature flue gas.

[0003] The existing equipment has the following shortcomings during use:

[0004] 1) In the existing technology, the direct method rotary drum drying equipment is used. The direct method rotary drum calcination system relies on the heat transfer of air to the material for drying, which requires a large amount of air and results in high discharge pressure.

[0005] 2) In the existing technology, the direct rotary drum dryer uses two temperatures of hot air (inlet air temperature and outlet air temperature) to control the quality of the dried product, which often results in the dried material having excessively high moisture content;

[0006] 3) In the existing technology, the lifting plates inside the cylinder lift the material, which can easily cause the product particles to break during the drying process. Utility Model Content

[0007] The purpose of this invention is to solve the problems of existing drying technologies that rely on hot air conduction to dry materials, which require a large amount of air, resulting in high exhaust pressure. The use of two hot air temperatures to control the quality of the dried product often leads to excessively high moisture content in the dried material and easy breakage of product particles during the drying process. The proposed invention is an indirect rotary drum thermal oil drying equipment system.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: an indirect rotary drum heat transfer oil drying equipment system, including a base, an inclined adjustment feeding mechanism, a mounting frame, a rotary drum body, and a drying mechanism. The inclined adjustment feeding mechanism is located above the base, and the drying mechanism is installed at the end of the rotary drum body.

[0009] The tilting adjustment feeding mechanism includes a movable base plate, which is connected to the top of the mounting frame, and the rotary cylinder is movably connected to the inner wall of the mounting frame.

[0010] A gear drive mechanism is installed on the top of the movable base plate. The drying mechanism includes a discharge sealing cover, which is rotatably installed at one end of the rotary drum. A feed sealing cover is rotatably installed at the other end of the rotary drum. The discharge sealing cover and the feed sealing cover are fixedly connected to the top of the movable base plate. Two heat transfer oil mechanical seals are installed at one end of the discharge sealing cover and the feed sealing cover. A heat transfer oil pipe is installed between the discharge sealing cover and the feed sealing cover. The two heat transfer oil mechanical seals are connected to both ends of the heat transfer oil pipe. The two heat transfer oil mechanical seals can guide the heat transfer oil into the heat transfer oil pipe, thereby achieving the drying of wet materials.

[0011] Preferably, the gear drive mechanism includes a geared motor, which is fixedly installed on the top of the movable base plate. A drive gear is fixedly connected to the output end of the geared motor, and a driven gear is fixedly sleeved on the outer surface of the rotary cylinder. The drive gear and the driven gear are meshed and connected. The geared motor can drive the drive gear to rotate, and the driven gear follows the drive gear to rotate, thereby realizing the rotation of the rotary cylinder.

[0012] Preferably, the movable base plate is rotatably connected to the top of the base, and a fixed shell is fixedly connected to the top of the base. A threaded rod is rotatably connected to the inner side of the fixed shell, and a movable block is sleeved on the outer surface of the threaded rod. A limiting groove is opened on the inner side of the fixed shell, and a fixed wheel is slidably connected in the limiting groove. One end of the fixed wheel is fixedly connected to the movable block, and a connecting rod is hinged to one end of the fixed wheel. The end of the connecting rod away from the fixed wheel is rotatably connected to the movable base plate. The fixed wheel can limit the movable block, and the movable block can be moved when the threaded rod rotates. The connecting rod moves with the movable block, thereby realizing the adjustment of the tilt angle of the movable base plate.

[0013] Preferably, a servo motor is fixedly installed on one side of the fixed shell. The output end of the servo motor movably passes through the fixed shell and is fixedly connected to the smooth end of the threaded rod. A support telescopic rod is rotatably connected to the top of the base. One end of the support telescopic rod is rotatably connected to the movable base plate. The servo motor can rotate the threaded rod, so that the tilt angle can be easily selected during adjustment.

[0014] Preferably, the top of the discharge sealing cover is provided with a moisture vent, the bottom of the discharge sealing cover is provided with a discharge port, and the top of the feed sealing cover is provided with a wet material inlet.

[0015] Preferably, a bracket is fixedly connected to the top of the movable base plate, and a support roller is rotatably connected to the inner surface of the bracket.

[0016] Preferably, a temperature sensor is fixedly installed on the inner surface of the rotary drum, a fixed plate is fixedly connected to the top of the movable base plate, a frequency converter and a PLC controller are installed on one side of the fixed plate, the wiring terminals of the PLC controller are connected to the wiring port inside the equipment, and an insulation board is fixedly installed on the outer surface of the rotary drum.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, the system adopts an indirect rotary drum heat transfer oil drying method. The internal heat transfer oil pipe is heated by heat transfer oil, and then the heat transfer oil is conducted to the wet material for drying. The drying process does not require air, and the amount of air discharged is minimal. At the same time, the heat transfer pipes create a constant temperature zone axially within the rotary drum, which can keep the wet material at a constant temperature for drying. This constant temperature drying is beneficial for the drying of water and particulate matter within the wet material. Furthermore, the wet material is basically below the center of the rotary drum and moves slowly, so the product particles will not cause violent movement and will not break. The particle shape before drying can be maintained. This solves the problems of existing technologies that rely on hot air conduction for drying, which require a large amount of air, resulting in high discharge pressure. Using two temperatures of hot air to control the quality of the dried product often results in excessively high moisture content in the dried material and easy breakage of product particles during the drying process.

[0019] 2. In this utility model, by setting up an inclined adjustment feeding mechanism, the threaded rod is driven to rotate by a servo motor, so that the moving block moves in the fixed shell, and the connecting rod moves with the moving block, thereby realizing the adjustment of the tilt angle of the movable base plate. In addition, the tilt angle can be easily selected during adjustment, and the tilt angle of the rotary drum can be flexibly adjusted according to the drying requirements of different materials to achieve better drying effect. At the same time, by adjusting the tilt angle of the rotary drum, it is also convenient to discharge the dried material and prevent any material from being left in the rotary drum.

[0020] 3. In this utility model, the system uses a temperature sensor to monitor the temperature inside the rotary drum in real time, and uses a frequency converter and PLC controller to precisely control the drying process. Compared with the existing method of using two temperatures of hot air to control the quality of dried products, it can more accurately control the drying time, reduce the occurrence of excessive moisture in the dried material, and ensure the quality of the dried product. Attached Figure Description

[0021] Figure 1 This utility model provides a three-dimensional view of the main structure of an indirect rotary drum heat transfer oil drying equipment system;

[0022] Figure 2 This utility model presents a left-side structural perspective view of an indirect rotary drum heat transfer oil drying equipment system;

[0023] Figure 3 This utility model presents a partial three-dimensional view of the tilt adjustment feeding mechanism in an indirect rotary drum thermal oil drying equipment system.

[0024] Figure 4This invention provides a three-dimensional cross-sectional view of the rotary drum in an indirect rotary drum heat transfer oil drying system.

[0025] Legend: 1. Base; 2. Tilting adjustment feeding mechanism; 201. Movable base plate; 202. Fixed shell; 203. Threaded rod; 204. Moving block; 205. Limiting slide groove; 206. Fixed wheel; 207. Connecting rod; 208. Servo motor; 209. Support telescopic rod; 3. Mounting frame; 4. Rotary cylinder; 5. Gear drive mechanism; 501. Gear reducer motor; 502. Drive gear; 503. Driven gear; 6. Drying mechanism; 601. Discharge sealing cover; 602. Feed sealing cover; 603. Heat transfer oil mechanical seal; 604. Heat transfer oil pipe; 605. Exhaust port; 606. Discharge port; 607. Wet material inlet; 7. Bracket; 8. Support roller; 9. Temperature sensor; 10. Fixed plate; 11. Frequency converter; 12. PLC controller; 13. Insulation board. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Example 1, such as Figures 1-4 As shown, this utility model provides an indirect rotary drum heat transfer oil drying equipment system, including a base 1, an inclined adjustment feeding mechanism 2, a mounting frame 3, a rotary drum 4, and a drying mechanism 6. The inclined adjustment feeding mechanism 2 is located above the base 1, and the drying mechanism 6 is installed at the end of the rotary drum 4. The inclined adjustment feeding mechanism 2 includes a movable base plate 201, which is connected to the top of the mounting frame 3. The rotary drum 4 is movably connected to the inner wall of the mounting frame 3.

[0029] The drying mechanism 6 includes a discharge sealing cover 601, which is rotatably mounted on one end of the rotary drum 4. A feed sealing cover 602 is rotatably mounted on the other end of the rotary drum 4. The discharge sealing cover 601 and the feed sealing cover 602 are respectively fixedly connected to the top of the movable base plate 201. Two heat transfer oil mechanical seals 603 are installed at one end of the discharge sealing cover 601 and the feed sealing cover 602. A heat transfer oil pipe 604 is installed between the discharge sealing cover 601 and the feed sealing cover 602. The two heat transfer oil mechanical seals 603 are respectively connected to both ends of the heat transfer oil pipe 604. The two heat transfer oil mechanical seals 603 can guide heat transfer oil into the heat transfer oil pipe 604, thereby achieving the drying of wet materials.

[0030] The overall effect of Embodiment 1 is that by setting the tilt adjustment feeding mechanism 2, an adjustable installation base can be provided for the rotary cylinder 4, which facilitates subsequent adjustment of the tilt of the rotary cylinder 4 according to the material characteristics. The movable base plate 201 in the tilt adjustment feeding mechanism 2 supports the mounting frame 3 and the rotary cylinder 4. At the same time, the drying mechanism 6 uses a heat transfer oil mechanical seal 603 in conjunction with the heat transfer oil pipe 604 to introduce heat transfer oil into the rotary cylinder 4, realizing indirect heat transfer oil drying. This avoids a large amount of air participating in the drying process, reduces the discharge pressure, and can form a constant temperature zone inside the rotary cylinder 4, which is beneficial for drying the water and particulate materials inside the wet material. It can also maintain the shape of the product particles. This solves the problems of existing technologies that rely on hot air conduction to dry the material, which requires a large amount of air, resulting in high discharge pressure. Using two temperatures of hot air to control the quality of the dried product often results in excessively high moisture content of the dried material, and the product particles are easily broken during the drying process.

[0031] Example 2, as Figure 2 As shown, a gear drive mechanism is provided on the top of the movable base plate. The gear drive mechanism 5 includes a reduction motor 501, which is fixedly installed on the top of the movable base plate 201. A drive gear 502 is fixedly connected to the output end of the reduction motor 501. A driven gear 503 is fixedly sleeved on the outer surface of the rotary cylinder 4. The drive gear 502 and the driven gear 503 are meshed and connected. The reduction motor 501 can drive the drive gear 502 to rotate, and the driven gear 503 follows the drive gear 502 to rotate, thereby realizing the rotation of the rotary cylinder 4.

[0032] The effect achieved by the entire embodiment 2 is that the gear drive mechanism 5 drives the drive gear 502 to rotate through the gear reduction motor 501, which in turn drives the driven gear 503 to rotate the rotary cylinder 4. This gear meshing transmission method can stably and efficiently provide power to the rotary cylinder 4, ensuring that the rotary cylinder 4 rotates continuously and at a uniform speed during the drying process, so that the wet material can be uniformly dried in the rotary cylinder 4, thereby improving the consistency of the drying effect.

[0033] Example 3, as Figure 2 and Figure 3 As shown, the movable base plate 201 is rotatably connected to the top of the base 1. A fixed shell 202 is fixedly connected to the top of the base 1. A threaded rod 203 is rotatably connected to the inner side of the fixed shell 202. A movable block 204 is fitted onto the outer surface of the threaded rod 203. A limiting groove 205 is formed on the inner side of the fixed shell 202. A fixed wheel 206 is slidably connected in the limiting groove 205. One end of the fixed wheel 206 is fixedly connected to the movable block 204. A connecting rod 207 is hinged to one end of the fixed wheel 206. The end of the connecting rod 207 away from the fixed wheel 206 is rotatably connected to the movable base plate 201. The fixed wheel 206 can limit the movable block 204. When the threaded rod 203 rotates, it can move the movable block 204. The connecting rod 207 moves with the moving block 204 to adjust the tilt angle of the movable base plate 201. A servo motor 208 is fixedly installed on one side of the fixed shell 202. The output end of the servo motor 208 passes through the fixed shell 202 and is fixedly connected to the smooth end of the threaded rod 203. A support telescopic rod 209 is rotatably connected to the top of the base 1. One end of the support telescopic rod 209 is rotatably connected to the movable base plate 201. The servo motor 208 can rotate the threaded rod 203, so that the tilt angle can be easily selected during adjustment. At the same time, by adjusting the tilt angle of the rotary drum 4, it is also convenient to discharge the dried material and prevent any material from being left in the rotary drum 4.

[0034] The overall effect of embodiment 3 is that by using the servo motor 208 to drive the threaded rod 203 to rotate, the threaded rod 203 is threadedly connected to the moving block 204, and the fixed wheel 206 limits the movement of the moving block 204, allowing the moving block 204 to move within the fixed shell 202. The connecting rod 207 pushes the movable base plate 201, thereby achieving precise adjustment of the tilt angle of the rotary cylinder 4. At the same time, the support telescopic rod 209 plays an auxiliary support role during the adjustment process, ensuring the stability of the structure. The tilt angle of the rotary cylinder 4 can be flexibly adjusted according to the drying requirements of different materials, optimizing the movement speed and residence time of the material within the rotary cylinder 4, thereby achieving a better drying effect.

[0035] Example 4, as Figure 1 and Figure 4As shown, the top of the discharge sealing cover 601 is provided with a dehumidification port 605, the bottom of the discharge sealing cover 601 is provided with a discharge port 606, the top of the feed sealing cover 602 is provided with a wet material inlet 607, the top of the movable base plate 201 is fixedly connected with a bracket 7, the inner surface of the bracket 7 is rotatably connected with a support roller 8, the inner surface of the rotary cylinder 4 is fixedly installed with a temperature sensor 9, the top of the movable base plate 201 is fixedly connected with a fixing plate 10, a frequency converter 11 and a PLC controller 12 are installed on one side of the fixing plate 10, the wiring terminal of the PLC controller 12 is connected to the wiring port inside the equipment, and the outer surface of the rotary cylinder 4 is fixedly installed with a heat preservation plate 13.

[0036] The overall effect of embodiment 4 is that the moisture generated during the drying process can be discharged in time through the vent 605 on the discharge sealing cover 601, and the discharge port 606 facilitates the collection of dried materials; the wet material inlet 607 on the feed sealing cover 602 facilitates the entry of wet materials into the rotary drum 4; the bracket 7 and the roller 8 can provide auxiliary support for the rotary drum 4 to ensure the stability of the rotation of the rotary drum 4; the temperature sensor 9 monitors the temperature inside the rotary drum 4 in real time; the frequency converter 11 and the PLC controller 12 accurately control the drying time according to the temperature data to ensure that the drying temperature is suitable and improve the quality of the dried product; the heat insulation plate 13 on the surface of the rotary drum 4 can reduce heat loss and improve energy utilization efficiency.

[0037] Working principle: In use, the servo motor 208 is first started by the PLC controller 12. Its output drives the threaded rod 203 inside the fixed housing 202 to rotate. When the threaded rod 203 rotates, the movable block 204 sleeved on its outer surface can only move along the axial direction of the threaded rod 203 under the limiting action of the limiting groove 205 and the fixed wheel 206 opened inside the fixed housing 202. When the movable block 204 moves, it drives the connecting rod 207 hinged to it to move. The connecting rod 207 pushes the movable base plate 201 to rotate around its hinge with the base plate. The rotating connection point of seat 1 rotates, thereby adjusting the tilt angle of the rotary drum 4. After adjustment, wet material is added to the rotary drum 4 through the wet material inlet 607, and the reduction motor 501 is started by the PLC controller 12. Its output end drives the drive gear 502 to rotate. The drive gear 502 meshes with the driven gear 503 fixedly sleeved on the outer surface of the rotary drum 4, thereby causing the driven gear 503 to drive the rotary drum 4 to rotate continuously and at a uniform speed. Heat transfer oil is introduced through an external pipe through one of the heat transfer oil mechanical seals 6. 03 The material is introduced into the internal heat transfer oil pipe 604 of the rotary drum 4, and then transferred to the heat transfer oil boiler through another heat transfer oil mechanical seal 603, realizing the heating and drying cycle of the heat transfer oil. As the rotary drum 4 rotates, the material continuously exchanges heat with the internal heat transfer oil pipe 604, thereby achieving uniform drying of the product and allowing the dried product to slowly heat up to close the temperature of the heat transfer oil, so that the bound water inside the product can also be evaporated and removed. Due to the rotation of the rotary drum 4 and the downward tilting action of the drum, the material is also driven to move from the wet material inlet 607 to the downward feed port 606. At the same time, the temperature sensor 9 monitors the temperature inside the rotary drum 4 and transmits the temperature data to the PLC controller 12. The PLC controller 12 controls the output frequency of the frequency converter 11 according to the preset temperature range and the received temperature data, thereby adjusting the speed of the geared motor 501 and changing the rotation speed of the rotary drum 4. This adjusts the heating time and drying degree of the material in the rotary drum 4, ensuring a suitable drying temperature and improving the quality of the dried product.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. Indirect rotary drum heat conducting oil drying equipment system, including base (1), inclination adjustment blanking mechanism (2), mounting frame (3), rotary drum body (4) and drying mechanism (6), characterized in that: The inclined adjustment blanking mechanism (2) is located above the base (1), and the drying mechanism (6) is arranged at the end of the rotary cylinder (4); The inclined adjustment blanking mechanism (2) comprises a movable bottom plate (201), which is connected with the top of the mounting frame (3), and the rotary cylinder (4) is movably connected to the inner wall of the mounting frame (3); The drying mechanism (6) comprises a discharge sealing cover (601), which is rotatably installed at one end of the rotary cylinder (4), and the other end of the rotary cylinder (4) is rotatably installed with a feeding sealing cover (602), the discharge sealing cover (601) and the feeding sealing cover (602) are fixedly connected to the top of the movable bottom plate (201) respectively, two heat conducting oil mechanical seals (603) are installed at one end of the discharge sealing cover (601) and the feeding sealing cover (602), a heat conducting oil pipeline (604) is installed between the discharge sealing cover (601) and the feeding sealing cover (602), and the two heat conducting oil mechanical seals (603) are respectively connected with the two ends of the heat conducting oil pipeline (604). The two heat conducting oil mechanical seals (603) can guide the heat conducting oil into the heat conducting oil pipeline (604), so as to realize the drying of the wet material.

2. The indirect rotary drum heat transfer oil drying apparatus system of claim 1, wherein: The top of the movable bottom plate (201) is provided with a gear driving mechanism (5), the gear driving mechanism (5) comprises a speed reducer motor (501), the speed reducer motor (501) is fixedly installed on the top of the movable bottom plate (201), the output end of the speed reducer motor (501) is fixedly connected with a driving gear (502), the outer surface of the rotary cylinder (4) is fixedly sleeved with a driven gear (503), the driving gear (502) is meshed and connected with the driven gear (503), the speed reducer motor (501) can drive the driving gear (502) to rotate, and the driven gear (503) rotates with the driving gear (502), so as to realize the rotation of the rotary cylinder (4).

3. The indirect rotary drum heat transfer oil drying apparatus system of claim 1, wherein: The movable bottom plate (201) is rotatably connected to the top of the base (1), the top of the base (1) is fixedly connected with a fixed shell (202), the inner side of the fixed shell (202) is rotatably connected with a threaded rod (203), the outer surface of the threaded rod (203) is sleeved with a moving block (204), the inner side of the fixed shell (202) is provided with a limiting sliding groove (205), the limiting sliding groove (205) is slidably connected with a fixed wheel (206), one end of the fixed wheel (206) is fixedly connected with the moving block (204), one end of the fixed wheel (206) is hingedly connected with a connecting rod (207), the end of the connecting rod (207) away from the fixed wheel (206) is rotatably connected with the movable bottom plate (201), the fixed wheel (206) can limit the movement of the moving block (204), the threaded rod (203) can move the moving block (204) when rotating, and the connecting rod (207) moves with the moving block (204), so as to adjust the inclination angle of the movable bottom plate (201).

4. The indirect rotary drum heat transfer oil drying apparatus system of claim 3, wherein: One side of the fixed shell (202) is fixedly installed with a servo motor (208), the output end of the servo motor (208) is movably penetrated through the fixed shell (202) and is fixedly connected with the smooth end of the threaded rod (203), the top of the base (1) is rotatably connected with a supporting telescopic rod (209), one end of the supporting telescopic rod (209) is rotatably connected with the movable bottom plate (201), the servo motor (208) can rotate the threaded rod (203), so that the inclination angle can be conveniently selected during adjustment.

5. The indirect rotary drum heat transfer oil drying apparatus system of claim 1, wherein: The top of the discharge sealing cover (601) is provided with a moisture discharge port (605), the bottom of the discharge sealing cover (601) is provided with a discharging port (606), and the top of the feeding sealing cover (602) is provided with a wet material inlet (607).

6. The indirect rotary drum heat transfer oil drying apparatus system of claim 1, wherein: The top of the movable bottom plate (201) is fixedly connected with a support (7), and the inner surface of the support (7) is rotatably connected with a supporting roller (8).

7. The indirect rotary drum heat transfer oil drying apparatus system of claim 1, wherein: The inner surface of the rotary cylinder (4) is fixedly installed with a temperature sensor (9), the top of the movable bottom plate (201) is fixedly connected with a fixed plate (10), one side of the fixed plate (10) is installed with a frequency converter (11) and a PLC controller (12), the wiring end of the PLC controller (12) is connected with the equipment inner wiring port, and the outer surface of the rotary cylinder (4) is fixedly installed with a heat preservation plate (13).

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