Airflow material anti-caking circulating drying device

Abstract

The utility model relates to the technical field of airflow material circulation drying, and discloses an airflow material anti-caking circulation drying device which comprises an upper material bin and a lower material bin, a top cover is fixedly connected to the top of the upper material bin, and circulation anti-caking airflow drying assemblies are arranged in the upper material bin and the lower material bin. The circulating anti-caking airflow drying assembly is used for efficiently drying materials with the large moisture content and effectively preventing the materials from caking in the drying process, the circulating anti-caking airflow drying assembly comprises a cyclone separator, a stirring assembly is arranged in the discharging bin, and the stirring assembly is used for stirring the materials. According to the utility model, materials and airflow can be effectively separated through the cyclone separator, and adhesion among material particles is broken through continuous stirring of the stirrer, so that the effect of effectively preventing the materials from caking in the drying process is realized, and the problems of non-uniform drying, unstable product quality and the like caused by material caking are solved; and the material drying uniformity and efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air flow material circulation drying technical field especially relates to a kind of air flow material anti-caking circulation drying device. BACKGROUND

[0002] In many industrial production fields, for example, chemical, food, pharmaceutical and other industries, it is often necessary to dry the material containing a certain amount of water to meet the requirements of subsequent processing, storage and product quality, etc. As a commonly used and efficient drying method, air flow drying is widely used due to its fast drying speed and large processing capacity. However, in the actual material drying process, especially for some materials with special properties, such as high moisture content, certain viscosity or heat sensitivity, simply relying on conventional air flow drying device can easily cause material caking. Material caking not only affects the uniformity and efficiency of drying, but also causes partial material to be unable to dry to the expected water content standard, further clogging the conveying pipeline, damaging the equipment, increasing the cost of production and the difficulty of subsequent cleaning and maintenance. Therefore, it is particularly important to develop an air flow material circulation drying device that can effectively prevent material caking, aiming to solve the key problem of material caking during drying through innovative mechanical structure and reasonable technical scheme, to ensure smooth production and stable improvement of product quality.

[0003] Traditional air flow drying device is mainly composed of feeding system, hot air supply system, drying pipeline and discharging system. In the feeding system, the material to be dried is continuously conveyed to the inlet of the drying pipeline by simple conveying devices such as conveyor belt or screw conveyor. The hot air supply system uses a heater to heat air, which is then delivered to the drying pipeline by a fan at a certain flow rate and pressure to form a high-speed hot air flow. The material enters the drying pipeline and is in a suspended state under the wrapping of the hot air flow, and flows rapidly in the pipeline with the air flow. In this process, the material and hot air are in full contact, and the water in the material is evaporated by heat, thereby achieving the purpose of drying. The dried material reaches the discharging system with the air flow, and the material and water-carrying air are separated by a gas-solid separation device, and finally the dried finished material is collected.

[0004] However, the conventional air flow drying device is prone to caking during the drying process of the material due to the lack of effective anti-caking mechanism, especially for the material with high moisture content, the particles of the material are prone to adhere to each other and aggregate in the hot and humid environment, and as the drying process proceeds, the adhered material gradually forms larger caking, and the structure and operation mode of the conventional drying device are difficult to break up the caking in time, resulting in uneven drying of the material, and the material inside the caking cannot be fully contacted with the hot air flow, thereby the ideal drying effect cannot be achieved, which seriously affects the product quality and the smooth development of the subsequent production process, and therefore, an air flow material anti-caking circulating drying device is proposed to solve the above problems. Content of the utility model

[0005] In order to make up for the above shortcomings, the utility model provides a kind of air flow material anti-caking circulating drying device, to improve the problems of material caking, uneven drying, conveying blockage, unstable product quality and high equipment maintenance cost caused by lack of effective anti-caking measures in prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A kind of air flow material anti-caking circulating drying device, including upper bin and lower bin, the upper bin top is fixedly connected with top cover, the upper bin and lower bin are internally provided with circulating anti-caking air flow drying component, the circulating anti-caking air flow drying component is used to efficiently dry the material with high moisture content and effectively prevent it from caking during drying process;

[0008] The circulating anti-caking air flow drying component includes a cyclone separator, the cyclone separator is fixedly connected in the top cover, the upper bin is internally provided with up-down symmetrical mixer, the mixer is used to quickly agitate material, the upper bin inner wall is fixedly connected with guide plate one, the upper bin bottom is fixedly connected with bidirectional screw conveyor, the upper bin bottom is fixedly connected with connecting pipe, the connecting pipe top end is fixedly connected with control valve, the lower bin top is fixedly connected with drainage pipe, the drainage pipe top end is fixedly connected with one end of the control valve, the lower bin is internally fixedly connected with guide plate two, the lower bin is internally provided with unidirectional screw conveyor, the lower bin is internally provided with stirring assembly, the stirring assembly is used to fully stir material;

[0009] As a further description of the above technical scheme:

[0010] The stirring assembly includes a connecting frame and a transmission shaft, the connecting frame is fixedly connected to the inner wall of the lower bin, and the transmission shaft is slidingly connected to the inside of the connecting frame.

[0011] As a further description of the above technical scheme:

[0012] The transmission shaft is fixedly connected with a motor on one side, and a connecting rod is fixedly connected to the output end of the motor;

[0013] As a further description of the above technical solution:

[0014] The outer wall of the connecting rod is rotatably connected with a base, the base is internally provided with a sliding groove, and the base is fixedly connected to the side wall of the lower discharge bin on one side;

[0015] As a further description of the above technical solution:

[0016] The outer wall of the connecting rod is rotatably connected with a base, the base is internally provided with a sliding groove, and the base is fixedly connected to the side wall of the lower discharge bin on one side;

[0017] As a further description of the above technical solution:

[0018] The outer wall of the connecting rod is rotatably connected with a base, the base is internally provided with a sliding groove, and the base is fixedly connected to the side wall of the lower discharge bin on one side;

[0019] As a further description of the above technical solution:

[0020] The outer wall of the connecting rod is rotatably connected with a base, the base is internally provided with a sliding groove, and the base is fixedly connected to the side wall of the lower discharge bin on one side;

[0021] As a further description of the above technical solution:

[0022] The outer wall of the connecting rod is rotatably connected with a base, the base is internally provided with a sliding groove, and the base is fixedly connected to the side wall of the lower discharge bin on one side;

[0023] The utility model has the advantages of the following beneficial effects:

[0024] 1、 the utility model discloses, through cyclone separator can effectively separate material and airflow, so that material enters the inside of loading bin, through the mixer continuous stirring, turning over material, break the adhesion between material particles, and then through the bidirectional screw conveyor and is transported to the inside of lower discharge bin, through the one-way screw conveyor in the inside of lower discharge bin, is transported further to realize circulation or direct discharge, so that realize the effect that material is effectively prevented from caking in the drying process, solve the problem such as uneven drying, easy to blockage and unstable product quality of conveying due to material caking, improve the uniformity and efficiency of material drying.

[0025] 2. The utility model discloses a material stirring process, through motor output end drive connecting rod rotates in the base inside, to further make the synchronous rotation of rotating shaft, under the rotation of rotating shaft drive slide bar slide in the inside of the slide, make the back and forth motion of rotating shaft, to realize the effect of more comprehensive, soft and dead angle turning of material in the stirring process, to solve the problem of the blind area of rotation stirring and the greater damage to material, improve the efficiency of material anti -caking. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A three-dimensional schematic view of a gas flow material anti-caking circulating drying device is proposed for the utility model;

[0027] Figure 2 A structure diagram of the inside of the feeding bin of a gas flow material anti-caking circulating drying device is proposed for the utility model;

[0028] Figure 3 A structure diagram of the inside of the discharging bin of a gas flow material anti-caking circulating drying device is proposed for the utility model;

[0029] Figure 4 For Figure 3 An enlarged view of A in the middle;

[0030] Figure 5 A structure diagram of one side of the base of a gas flow material anti-caking circulating drying device is proposed for the utility model;

[0031] Figure 6 A structure diagram of the inside of the base of a gas flow material anti-caking circulating drying device is proposed for the utility model.

[0032] Legend:

[0033] 1, feeding bin, 2, discharging bin, 3, top cover, 4, cyclone separator, 5, connecting pipe, 6, guide plate one, 7, mixer, 8, bidirectional screw conveyor, 9, control valve, 10, drainage pipe, 11, guide plate two, 12, connecting frame, 13, transmission shaft, 14, motor, 15, connecting rod, 16, base, 17, slide, 18, rotating shaft, 19, slide bar, 20, stirring blade, 21, guide ring, 22, spring, 23, one-way screw conveyor. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0035] With reference to Figure 1 Figure 3 The present application provides an embodiment: a circulating drying device for airflow material to prevent caking, comprising a feeding bin 1 and a discharging bin 2, the top of the feeding bin 1 is fixedly connected with a top cover 3 for ensuring the sealing property, a circulating anti-caking airflow drying assembly is arranged inside the feeding bin 1 and the discharging bin 2, the circulating anti-caking airflow drying assembly is used for efficiently drying the material with high moisture content and effectively preventing the material from caking in the drying process.

[0036] The circulating anti-caking airflow drying assembly comprises a cyclone separator 4, the cyclone separator 4 separates the solid particles in the airflow with moisture by high-speed rotating airflow, avoids the mixing of moisture and material to affect the drying effect, the cyclone separator 4 is fixedly connected inside the top cover 3, a symmetrical stirring machine 7 is arranged inside the feeding bin 1, the material is quickly stirred by high-speed rotating blades, the material is ensured to keep uniform flow and effectively prevent caking in the drying process, the stirring machine 7 is used for quickly stirring the material, a guide plate one 6 is fixedly connected to the inner wall of the feeding bin 1, a bidirectional screw conveyor 8 is fixedly connected to the bottom of the feeding bin 1, the screw rotating direction can be adjusted according to the flow condition of the material, so as to ensure that the material is uniformly conveyed to the discharging bin 2, a connecting pipe 5 is fixedly connected to the bottom of the feeding bin 1, a control valve 9 is fixedly connected to the top end of the connecting pipe 5, a drainage pipe 10 is fixedly connected to the top of the discharging bin 2, the drainage pipe 10 is used for connecting the airflow between the feeding bin 1 and the discharging bin 2, so that the dried airflow can smoothly pass through, and it is also convenient for the material to flow into the inside of the discharging bin 2, the top end of the drainage pipe 10 is fixedly connected with one end of the control valve 9, a guide plate two 11 is fixedly connected inside the discharging bin 2, a one-way screw conveyor 23 is arranged inside the discharging bin 2, a stirring assembly is arranged inside the discharging bin 2, and the stirring assembly is used for fully stirring the material.

[0037] ​Specifically, in the treatment of moisture content is larger and in the hot and humid conditions extremely easy to caking, relying on the conventional drying times can not reach the low moisture index requirements, while ensuring the quality of the material drying, to avoid the impact of caking on the subsequent conveying and packaging process of material, the mixed gas carrying the material enters the cyclone separator 4 through the pipeline, the rotating gas flow in the cyclone separator 4 is effectively separated from the moisture in the mixed gas flow by the action of centrifugal force, in this process, the moisture is discharged from the separator, and the moisture in the material is removed and becomes dry, the dried cellulose material is then passed through the air lock into the feeding bin 1, in order to prevent the dried material in the feeding bin 1 from caking in the humid environment, the agitator 7 is arranged in the bin, the agitator 7 keeps the material in the bin loose and uniform by continuous stirring and turning, prevents the material from sticking and piling up, which helps to ensure that the material can flow smoothly and be evenly distributed in the subsequent processing process, when the material in the feeding bin 1 needs to be transferred to the discharging bin 2, the control valve 9 below the two-way screw conveyor 8 needs to be opened first, the control valve 9 controls the flow direction of the material, the two-way screw conveyor 8 can realize the quantitative and uniform conveying of the material, it effectively conveys the material from the feeding bin 1 to the discharging bin 2 through the two-way rotating screw blade, ensures that the material can be transferred to the next stage and maintains the integrity and stability of the material.

[0038] With reference to Figure 4 - Figure 6 The stirring assembly includes a connecting frame 12 and a transmission shaft 13, the connecting frame 12 is fixedly connected to the inner wall of the discharging bin 2, the connecting frame 12 serves as a support frame of the entire stirring assembly to ensure the stability of the stirring assembly, the transmission shaft 13 is slidably connected inside the connecting frame 12, one side of the transmission shaft 13 is fixedly connected with a motor 14 for driving the rotating movement of the entire stirring assembly, the output end of the motor 14 is fixedly connected with a connecting rod 15, the outer wall of the connecting rod 15 is rotatably connected with a base 16, which has strong structural strength and stability to provide necessary support, a sliding groove 17 is formed in the inner wall of the base 16 for the back-and-forth reciprocating movement of a rotating shaft 18, one side of the base 16 is fixedly connected to the side wall of the discharging bin 2, the outer wall of the connecting rod 15 is slidably connected with the rotating shaft 18, the outer wall of the rotating shaft 18 is fixedly connected with a sliding rod 19 which slides in the sliding groove 17.

[0039] Specifically, when the material has high viscosity, brittle texture, high uniformity requirements, prominent anti-caking needs or is restricted by equipment space layout, after the material enters the discharge bin 2, first, the motor 14 in the bin drives the connecting rod 15 to rotate through the output end, the connecting rod 15 is connected with the base 16 to form a stable movement basis, under the driving of the rotation of the connecting rod 15, the rotating shaft 18 starts to rotate synchronously, this rotation makes the sliding rod 19 move synchronously inside the sliding groove 17, the sliding groove 17 is an inclined curved surface, so that the movement of the sliding rod 19 in the sliding groove 17 not only rotates but also has the characteristics of reciprocating forward and backward, which helps to stabilize the movement trajectory of the rotating shaft 18 and avoids the phenomenon of jamming, with the reciprocating movement of the rotating shaft 18, the spring 22 is compressed and elastically deformed.

[0040] With reference to Figure 4 - Figure 6 The outer wall of the rotating shaft 18 is fixedly connected with the stirring blade 20, the stirring blade 20 has a certain angle, so that the caked material can be effectively broken up when the rotating shaft 18 rotates, the stirring blade 20 is used to break up the caked material, the outer wall of the rotating shaft 18 is fixedly connected with the flow guide ring 21, the flow guide ring 21 is mainly used to control the flow direction of the material during stirring, optimize the distribution of the material, and prevent unnecessary stagnation or accumulation during stirring, the outer wall of the connecting rod 15 is provided with the spring 22, the spring 22 provides certain elastic support, so that the rotating shaft 18 can adapt to certain deviation or vibration during work, avoiding damage to the rotating shaft 18 and its related parts due to vibration or external force, one end of the spring 22 is fixedly connected to the top end of the rotating shaft 18, and the other end is fixedly connected to the outer wall of the connecting rod 15.

[0041] Specifically, the stability of the rotating shaft 18 is enhanced by the deformation of the spring 22, so that the rotating shaft 18 can continuously and stably operate during the material stirring process, thereby improving the efficiency of the entire drying process and the uniformity of the material, at the same time, the movement of the rotating shaft 18 drives the stirring blade 20 and the flow guide ring 21 to move synchronously forward and backward, up and down, this synchronous movement can effectively stir the material, ensure that each part of the material can uniformly contact the drying medium, promote the uniform evaporation of the moisture of the material, and thus achieve a more comprehensive drying effect, after the material stirring is completed, the one-way screw conveyor 23 at the bottom of the discharge bin 2 is started, the one-way screw conveyor 23 can push the material back into the airflow assembly for circulation drying under the condition of forward rotation, in this way, the material will repeatedly pass through the drying process until the moisture reaches the preset low moisture index, when the material is dried, the one-way screw conveyor 23 is reversed to smoothly discharge the material from the discharge bin 2, completing the closed loop of the entire drying process, thereby effectively improving the production efficiency and product quality.

[0042] Working principle: when using the device, the mixed gas carrying material enters the cyclone separator 4, and the centrifugal force generated by the rotating airflow in the cyclone separator 4 separates the material from the moisture, and the moisture is discharged, and the dried cellulose enters the feeding bin 1 through the air lock, the material entering the feeding bin 1 is continuously stirred by the agitator 7 in the bin to prevent caking under wet and hot conditions, and the material is kept loose and uniform, when the material in the feeding bin 1 needs to be transferred to the discharging bin 2, first open the control valve 9 below the two-way screw conveyor 8, and then transfer the material to the discharging bin 2 through the two-way screw conveyor 8, after the material enters the discharging bin 2, the connecting rod 15 is driven to rotate in the base 16 by the motor 14 output end, which further synchronously rotates the rotating shaft 18, and the sliding rod 19 is synchronously rotated in the sliding groove 17 by the rotation of the rotating shaft 18, because the shape of the sliding groove 17 is inclined curved surface, one end is higher than the other end, so that the rotating shaft 18 makes reciprocating motion under the rotation of the sliding rod 19, the spring 22 is elastically deformed under the movement of the rotating shaft 18, so that the movement of the rotating shaft 18 is more stable, the stirring blade 20 and the guide ring 21 are synchronously reciprocated under the movement of the rotating shaft 18, so that the material is more fully stirred, after stirring, the unidirectional screw conveyor 23 at the bottom of the discharging bin 2 is started, and the material is sent back to the airflow system for recycling and drying, so as to repeat the above process many times until the material reaches the low moisture requirement, at the same time, when the material is dried, the unidirectional screw conveyor 23 at the bottom of the discharging bin 2 is reversed, so that the material can be smoothly transferred out of the drying system, and the whole drying process is completed.

[0043] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A non-caking circulating drying device for airflow materials, comprising an upper feed bin (1) and a lower feed bin (2), characterized in that: The top of the upper feed bin (1) is fixedly connected with a top cover (3), and the upper feed bin (1) and the lower feed bin (2) are internally provided with a circulating anti-caking airflow drying assembly, which is used for efficiently drying materials with high moisture content and effectively preventing the materials from caking during the drying process. The circulating anti-caking airflow drying assembly comprises a cyclone separator (4) fixedly connected inside the top cover (3), the upper feed bin (1) is internally provided with an upper and lower symmetrical stirrer (7) for rapidly stirring the materials, the inner wall of the upper feed bin (1) is fixedly connected with a guide plate (6), the bottom of the upper feed bin (1) is fixedly connected with a bidirectional screw conveyor (8), the bottom of the upper feed bin (1) is fixedly connected with a connecting pipe (5), the top end of the connecting pipe (5) is fixedly connected with a control valve (9), the top of the lower feed bin (2) is fixedly connected with a drainage pipe (10), the top end of the drainage pipe (10) is fixedly connected with one end of the control valve (9), the inner wall of the lower feed bin (2) is fixedly connected with a guide plate (11), the inner wall of the lower feed bin (2) is provided with a one-way screw conveyor (23), and the inner wall of the lower feed bin (2) is provided with a stirring assembly for comprehensively stirring the materials.

2. The apparatus according to claim 1, wherein: The stirring assembly comprises a connecting frame (12) and a transmission shaft (13), the connecting frame (12) is fixedly connected to the inner wall of the lower feed bin (2), and the transmission shaft (13) is slidingly connected to the inside of the connecting frame (12).

3. The apparatus according to claim 2, wherein: One side of the transmission shaft (13) is fixedly connected with a motor (14), and the output end of the motor (14) is fixedly connected with a connecting rod (15).

4. The non-blocking pneumatic material circulating drying device according to claim 3, characterized in that: The outer wall of the connecting rod (15) is rotatably connected with a base (16), the inner wall of the base (16) is provided with a sliding groove (17), and one side of the base (16) is fixedly connected to the side wall of the lower feed bin (2).

5. The apparatus according to claim 4, wherein: The outer wall of the connecting rod (15) is slidingly connected with a rotating shaft (18), the outer wall of the rotating shaft (18) is fixedly connected with a sliding rod (19), and the sliding rod (19) slides in the sliding groove (17).

6. The pneumatic material anti-caking circulating drying device according to claim 5, characterized in that: The outer wall of the rotating shaft (18) is fixedly connected with a stirring blade (20), and the stirring blade (20) is used for dispersing the caked materials.

7. The pneumatic material anti-caking circulating drying device according to claim 6, characterized in that: The outer wall of the rotating shaft (18) is fixedly connected with a guide ring (21), and the outer wall of the connecting rod (15) is provided with a spring (22).

8. The pneumatic material anti-caking circulating drying device according to claim 7, characterized in that: One end of the spring (22) is fixedly connected to the top end of the rotating shaft (18), and the other end is fixedly connected to the outer wall of the connecting rod (15).

Images