High-viscosity solution spray drying device

Abstract

The utility model discloses a high viscosity solution spray drying device which comprises a drying tower, a cyclone separator, a material receiving frame and a solution material box, one side of the drying tower is provided with a first fan, one side of the first fan is fixedly connected with a heating box, the upper side of the heating box is fixedly connected with an air guide frame through a first pipe fitting, and an airflow distribution plate is fixedly connected in the air guide frame. One side of the drying tower is provided with a second fan, one side of the second fan is fixedly connected with an annular pipe through a second pipe fitting, the upper end of the annular pipe is evenly and fixedly connected with spray heads, the annular pipe is located in the drying tower, the drying tower is in contact with a guide plate on the bottom side of the annular pipe, and one side of the bottom end of the drying tower is fixedly connected with a material collecting frame through a third pipe fitting; the second fan is arranged on one side of the drying tower to be matched with the annular pipe and the spray head to form cooling airflow on the inner wall of the drying tower, spray which is screwed out under centrifugal force can be heated and dried, liquid drops adhering to the inner wall of the drying tower are reduced, and the production efficiency of materials and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically to a high-viscosity solution spray drying device. Background Technology

[0002] High-viscosity solution spray drying equipment is a special drying device designed for high viscosity characteristics. A high-viscosity solution is delivered to a specially designed atomizer by a high-pressure pump. The solution is dispersed into tiny water droplets in the atomizer. At the same time, hot air enters the drying tower and comes into full contact with the atomized droplets to achieve rapid heat and mass transfer, so that the water in the droplets evaporates quickly and finally dry powder or granules are obtained.

[0003] According to the Chinese patent publication CN208465207U, "An atomizing device for spray drying of high-viscosity slurry", the main description is that by setting the atomizing disc in the shape of a disc, the working surface area is increased, the contact area between the atomizing disc and the ceramic slurry is increased, and the residence time of the slurry on the atomizing disc is also increased, so that the slurry film formed by the ceramic slurry on the atomizing disc is more uniform and finer.

[0004] In common high-viscosity solution spray drying equipment, the droplets sprayed through the atomizing nozzle will stick to the inner wall of the drying tower during use, affecting subsequent production efficiency and product quality.

[0005] Therefore, a high-viscosity solution spray drying device is proposed to solve the problem of droplets of high-concentration solution sprayed from the atomizing nozzle sticking together. Utility Model Content

[0006] The technical problem to be solved by this invention is that droplets of high-concentration solutions sprayed from atomizing nozzles can stick together. Therefore, a high-viscosity solution spray drying device is proposed.

[0007] The technical solution adopted by this utility model to solve the technical problem is: a high-viscosity solution spray drying device, including a drying tower, a cyclone separator, a receiving frame, and a solution tank. A first fan is arranged on one side of the drying tower, and a heating box is fixedly connected to one side of the first fan. An air guide frame is fixedly connected to the upper side of the heating box through a first pipe fitting. An air distribution plate is fixedly connected inside the air guide frame. A second fan is arranged on one side of the drying tower, and an annular pipe is fixedly connected to one side of the second fan through a second pipe fitting. Spray nozzles are uniformly fixedly connected to the upper end of the annular pipe. The annular pipe is located inside the drying tower, and a guide plate is in contact with the bottom side of the drying tower at the bottom of the annular pipe. The side is fixedly connected to the receiving frame via a third pipe fitting. A support pipe is fixedly connected to the upper end of the solution tank. A connecting frame is fixedly connected to the upper end of the support pipe. A support plate is fixedly connected to the upper end of the connecting frame. A drive motor is fixedly connected to the bottom end of the support plate. A turntable is fixedly connected to the output end of the drive motor. A conical recess is formed at the upper end of the turntable. A spiral protrusion is fixedly connected to the turntable within the conical recess. Connecting rods are evenly fixedly connected to the turntable at the edge of the conical recess. A baffle is fixedly connected to the upper end of the connecting rod. A water pump is fixedly connected to one side of the support pipe. A conduit is fixedly connected to the output end of the water pump. One end of the conduit corresponds to the lowest point of the conical recess.

[0008] As a preferred technical solution of this utility model, an annular baffle is fixedly connected inside the drying tower. The annular baffle corresponds to the nozzle. By setting the annular baffle, the direct contact between falling particles and the nozzle can be reduced, thus preventing the nozzle from clogging.

[0009] As a preferred technical solution of this utility model, an arc-shaped baffle is fixedly connected to the upper side of the air guide frame. The arc-shaped baffle is located above the annular baffle. By setting the arc-shaped baffle, the dry particles can be prevented from contacting the gas distribution plate.

[0010] As a preferred technical solution of this utility model, a telescopic rod is fixedly connected to the bottom of the drying tower, a guide plate is fixedly connected to the upper end of the telescopic rod, an electric push rod is fixedly connected to the bottom of the drying tower, and a vibrating ball is fixedly connected to the output end of the electric push rod. By setting the electric push rod to drive the vibrating ball to strike the guide plate, the feeding speed can be promoted.

[0011] As a preferred technical solution of this utility model, an extension tube is fixedly connected to one side of the guide plate. The extension tube is located inside the third pipe fitting. By setting the extension tube to be directly inserted into the third pipe fitting, the amount of solution particles falling to the bottom of the drying tower is reduced.

[0012] This invention has the following advantages: by setting a second fan on one side of the drying tower, in conjunction with an annular pipe and nozzles, a cooling airflow is formed on the inner wall of the drying tower, which can heat and dry the spray swirled out by centrifugal force, reduce the adhesion of droplets to the inner wall of the drying tower, and improve the production efficiency and product quality of materials. At the same time, by setting a conical recess in conjunction with a spiral protrusion, the movement path of droplets under centrifugal force can be increased, so that the droplet particle size distribution is uniform and the drying uniformity is improved. Attached Figure Description

[0013] Figure 1 This is a side cross-sectional view of a high-viscosity solution spray drying device according to a preferred embodiment of the present invention;

[0014] Figure 2 This is a three-dimensional structural diagram of the connecting frame of a high-viscosity solution spray drying device according to a preferred embodiment of the present invention;

[0015] Figure 3 This is a preferred embodiment of a high-viscosity solution spray drying device according to the present invention. Figure 1 Enlarged structural diagram at point A in the middle.

[0016] Explanation of reference numerals in the attached drawings: 1. Drying tower; 2. First fan; 3. Heating box; 4. Air guide frame; 5. Airflow distribution plate; 6. Second fan; 7. Annular pipe; 8. Nozzle; 9. Guide plate; 10. Material receiving frame; 11. Solution tank; 12. Support pipe; 13. Connecting frame; 14. Support plate; 15. Turntable; 16. Spiral protrusion; 17. Connecting rod; 18. Baffle; 19. Guide tube; 20. Annular baffle; 21. Telescopic rod; 22. Electric push rod; 23. Extension pipe; 24. Arc-shaped baffle. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please refer to the following: Figure 1-3The high-viscosity solution spray drying device shown includes a drying tower 1, a cyclone separator, a receiving frame 10, and a solution tank 11. The cyclone separator is used to disperse the airflow. A first fan 2 is installed on one side of the drying tower 1, and a heating box 3 is fixedly connected to one side of the first fan 2. The first fan 2 blows the airflow into the heating box 3, and after heating, the airflow enters the air guide frame 4 and is evenly distributed by the airflow distribution plate 5, thereby heating and drying the centrifugally removed droplets during the rising of the hot flow. The air guide frame 4 is fixedly connected to the upper side of the heating box 3 through a first pipe, and an air guide frame 4 is fixedly connected inside the air guide frame 4. A flow distribution plate 5 has uniformly opened through holes. A second fan 6 is installed on one side of the drying tower 1. An annular pipe 7 is fixedly connected to one side of the second fan 6 through a second fitting. The air intake of the second fan 6 is sprayed out through nozzles 8, and a cooler airflow is sprayed onto the inner wall of the drying tower 1, which can form a physical insulation layer and reduce the adhesion of high-viscosity materials to the inner wall of the drying tower 1. Nozzles 8 are uniformly fixedly connected to the upper end of the annular pipe 7. The annular pipe 7 is located inside the drying tower 1. A guide plate 9 is in contact with the bottom side of the annular pipe 7. The guide plate 9 is used to guide the dried atomized particles, which is convenient for the subsequent material collection frame 10 to dry the atomized particles. After drying, the bottom of the drying tower 1 is fixedly connected to the receiving frame 10 via a third pipe fitting. A support pipe 12 is fixedly connected to the upper end of the solution tank 11, and a connecting frame 13 is fixedly connected to the upper end of the support pipe 12. A support plate 14 is fixedly connected to the upper end of the connecting frame 13, and a drive motor is fixedly connected to the bottom end of the support plate 14. The drive motor drives the turntable 15 to rotate. Spiral protrusions 16 and conical recesses are provided on the inner side of the turntable 15 to increase the movement path of the droplets under centrifugal force. Simultaneously, in conjunction with the connecting rod 17 for cutting, this improves the droplet atomization effect. The output end of the drive motor is fixedly connected to the turntable 1. 5. A conical recess is provided at the upper end of the turntable 15. A spiral protrusion 16 is fixedly connected to the turntable 15 within the conical recess. A connecting rod 17 is evenly fixedly connected to the edge of the conical recess on the turntable 15. A baffle 18 is fixedly connected to the upper end of the connecting rod 17. A water pump is fixedly connected to one side of the support pipe 12. The water pump controls the overflow of the high-concentration solution. The water pump can be a plunger pump. The water pump draws the high-concentration solution from the solution tank 11 and transmits it to the conduit 19. The solution then falls at the lowest point of the conical recess, which facilitates dispersion. The output end of the water pump is fixedly connected to the conduit 19. One end of the conduit 19 corresponds to the lowest point of the conical recess.

[0019] An annular baffle 20 is fixedly connected inside the drying tower 1. The annular baffle 20 corresponds to the nozzle 8. By setting the annular baffle 20, the contact between the dried particles and the nozzle 8 is reduced.

[0020] An arc-shaped baffle 24 is fixedly connected to the upper side of the air guide frame 4. The arc-shaped baffle 24 is located above the annular baffle 20. By setting the arc-shaped baffle 24, the amount of dried particles entering the air guide frame 4 can be reduced and the through holes on the airflow distribution plate 5 can be blocked.

[0021] The drying tower 1 is fixedly connected to a telescopic rod 21 at its bottom, and a guide plate 9 is fixedly connected to the upper end of the telescopic rod 21. An electric push rod 22 is fixedly connected to the bottom of the drying tower 1, and a vibrating ball is fixedly connected to the output end of the electric push rod 22. By setting the electric push rod 22 to extend and retract to strike the guide plate 9, the guide plate 9 is made to vibrate, thereby improving the material feeding efficiency.

[0022] An extension tube 23 is fixedly connected to one side of the guide plate 9. The extension tube 23 is located inside the third pipe fitting. By setting the extension tube 23, the extension tube 23 is always located on the third pipe fitting when the guide plate 9 moves up and down, which can reduce the amount of dried particles left in the drying tower 1 and affect the feeding efficiency.

[0023] Working principle: The first fan 2 and the second fan 6 rotate and draw air into the drying tower 1. The airflow entering through the first fan 2 passes through the heating box 3 and then enters the air guide frame 4 through the first pipe. It is then evenly distributed through the air distribution plate 5. At this time, the hot airflow moves upward at the center of the drying tower 1, while the airflow sprayed from the annular pipe 7 and the nozzle 8 is at the inner wall of the drying tower 1. Then, the water pump draws the high-concentration solution from the solution tank 11 and enters the lowest point of the conical recess through the conduit 19. Then, the drive motor drives the turntable 15 to rotate and refines it into atomized droplets through the spiral protrusion 16, the conical recess and the connecting rod 17 and evenly disperses them. Then, the rising hot airflow dries the droplets and makes the high-concentration droplets dry into granules. Under the action of gravity, the granules fall to the guide plate 9. The electric push rod 22 extends and retracts, causing the guide plate 9 to vibrate. The granules fall into the receiving frame 10 through the extension pipe 23 and the third pipe. The rising airflow passes through the cyclone separator to remove dust, which can reduce dust overflow.

[0024] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0025] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-viscosity solution spray drying apparatus, comprising a drying tower (1), a cyclone separator, a receiving frame (10), and a solution tank (11), characterized in that, A first fan (2) is provided on one side of the drying tower (1), and a heating box (3) is fixedly connected to one side of the first fan (2). A guide frame (4) is fixedly connected to the upper side of the heating box (3) through a first pipe fitting. An airflow distribution plate (5) is fixedly connected inside the guide frame (4). A second fan (6) is provided on one side of the drying tower (1), and an annular pipe (7) is fixedly connected to one side of the second fan (6) through a second pipe fitting. Spray nozzles (8) are evenly fixedly connected to the upper end of the annular pipe (7). The annular pipe (7) is located inside the drying tower (1). A guide plate (9) is in contact with the bottom side of the annular pipe (7). A third pipe fitting is fixedly connected to the bottom side of the drying tower (1) and a receiving frame (10). The upper end of the solution tank (11) is fixedly connected to... There is a support pipe (12), and a connecting frame (13) is fixedly connected to the upper end of the support pipe (12). A support plate (14) is fixedly connected to the upper end of the connecting frame (13). A drive motor is fixedly connected to the bottom end of the support plate (14). A turntable (15) is fixedly connected to the output end of the drive motor. A conical recess is opened at the upper end of the turntable (15). A spiral protrusion (16) is fixedly connected to the turntable (15) inside the conical recess. A connecting rod (17) is evenly fixedly connected to the edge of the conical recess on the turntable (15). A baffle (18) is fixedly connected to the upper end of the connecting rod (17). A water pump is fixedly connected to one side of the support pipe (12). A conduit (19) is fixedly connected to the output end of the water pump. One end of the conduit (19) corresponds to the lowest point of the conical recess.

2. The high-viscosity solution spray drying apparatus as described in claim 1, characterized in that, An annular baffle (20) is fixedly connected inside the drying tower (1), and the annular baffle (20) corresponds to the nozzle (8).

3. The high-viscosity solution spray drying apparatus as described in claim 1, characterized in that, An arc-shaped baffle (24) is fixedly connected to the upper side of the air guide frame (4), and the arc-shaped baffle (24) is located on the upper side of the annular baffle (20).

4. The high-viscosity solution spray drying apparatus as described in claim 3, characterized in that, A telescopic rod (21) is fixedly connected to the bottom of the drying tower (1), and a guide plate (9) is fixedly connected to the upper end of the telescopic rod (21). An electric push rod (22) is fixedly connected to the bottom of the drying tower (1), and a vibrating ball is fixedly connected to the output end of the electric push rod (22).

5. The high-viscosity solution spray drying apparatus as described in claim 4, characterized in that, An extension tube (23) is fixedly connected to one side of the guide plate (9), and the extension tube (23) is located inside the third pipe fitting.

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