Drum-type dryer capable of being used for sodium borohydride production

Abstract

The utility model discloses a drum-type dryer for producing sodium borohydride, which comprises a base, a left support and a right support are arranged on the upper surface of the base, a detachable drum comprises a left conical drum, a right conical drum and a middle drum body, and the left conical drum and the right conical drum are respectively connected with two ends of the middle drum body through flanges. The left conical roller and the right conical roller are rotationally connected with the left support and the right support respectively through supporting cylinders, a second straight pipe is arranged at the inner end of the interior of the right conical roller through a flange, a plurality of air holes are evenly formed in the pipe wall of the second straight pipe, and the second straight pipe extends to the middle cylinder. A first straight pipe in the left conical roller and a second straight pipe in the right conical roller are installed, a plurality of air holes are evenly formed in the pipe wall of the second straight pipe in the right conical roller, and the second straight pipe extends to the middle roller body, so that it is guaranteed that hot air is smoothly and evenly distributed in the detachable roller, and the drying effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of powder drying equipment technology, specifically a drum dryer that can be used in the production of sodium borohydride. Background Technology

[0002] Sodium borohydride is an inorganic compound with the chemical formula NaBH4. It is a white to grayish-white crystalline powder with strong hygroscopic properties. Its alkaline solution is brownish-yellow, and it is one of the most commonly used reducing agents. Sodium borohydride requires drying during production. Due to the characteristics of its crystalline powder, a drum dryer is generally used for drying.

[0003] However, the existing drum dryers generally have a one-piece structure. Because it is a one-piece structure, it cannot be opened. On the one hand, the volume is too large, which makes transportation inconvenient. On the other hand, the hot air can only enter the drum from one end of the drum, which may result in uneven distribution of the hot air when it enters the drum, thus affecting the drying effect. Therefore, there is an urgent need for an improved technology to solve this problem in the existing technology. Utility Model Content

[0004] The purpose of this invention is to provide a drum dryer that can be used in the production of sodium borohydride, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drum dryer that can be used in the production of sodium borohydride, comprising a frame and a detachable drum;

[0006] The frame includes a base, a left support, a right support, and a geared motor. The left and right supports are provided on the upper surface of the base. The geared motor is also provided on the upper surface of the base at one end of the left support via a motor mount. The output shaft of the geared motor is provided with a drive gear. An L-shaped frame is provided at the top of the left support. The L-shaped frame is connected to an L-shaped exhaust pipe. A bracket is provided on the outer side of the right support. A fixing frame is provided on the upper surface of the bracket. The fixing frame is connected to an air inlet.

[0007] The detachable roller includes a left conical roller, a right conical roller, and a middle cylinder. The left and right conical rollers are connected to both ends of the middle cylinder via flanges. Agitator plates are provided on the inner walls of the left and right conical rollers and the middle cylinder. An inlet and outlet are provided on one side of the middle cylinder. Support cylinders are provided at the outer ends of the left and right conical rollers. The left and right conical rollers are rotatably connected to a left support and a right support via the support cylinders. The support cylinder connected to the left conical roller is configured with… There is a driven gear that meshes with the driving gear. One end of the L-shaped exhaust pipe is inserted into the support cylinder of the left conical roller, and one end of the air inlet is inserted into the support cylinder of the right conical roller. The inner end of the left conical roller is provided with a first straight pipe through a flange, and the inner end of the right conical roller is provided with a second straight pipe through a flange. The wall of the second straight pipe is evenly provided with several air holes. The first straight pipe is wrapped with filter cloth, and the second straight pipe extends to the middle cylinder. A sealing plate is provided at the end of the second straight pipe.

[0008] Preferably, the present invention provides a drum dryer for the production of sodium borohydride, wherein two auxiliary support frames are provided on the upper surface of the base and between the left and right supports, and two support rollers are provided at the top of each auxiliary support frame via support roller seats, and the support rollers at the top of the two auxiliary support frames are respectively supported on the bottom of the left conical drum and the right conical drum.

[0009] Preferably, the present invention provides a drum dryer that can be used in the production of sodium borohydride, wherein the outer end of the L-shaped frame is provided with a U-shaped groove, the L-shaped exhaust pipe is provided with a connecting plate, the L-shaped exhaust pipe is disposed in the U-shaped groove and is fastened to the L-shaped frame by the connecting plate and bolts.

[0010] Preferably, the present invention provides a drum dryer that can be used in the production of sodium borohydride, wherein the inlet and outlet are equipped with valves.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The detachable roller is assembled from a left conical roller, a right conical roller, and a middle cylinder, which facilitates disassembly, assembly, and transportation. It also allows for the installation of the first straight tube inside the left conical roller and the second straight tube inside the right conical roller. The second straight tube inside the right conical roller has several air holes evenly distributed on its wall, and the second straight tube extends to the middle cylinder, thus ensuring that the hot air is smoothly and evenly distributed inside the detachable roller, thereby improving the drying effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2This is a schematic diagram of the appearance and structure of this utility model;

[0015] Figure 3 This is a schematic diagram of a detachable roller structure.

[0016] In the diagram: 1. Base; 2. Left support; 3. Right support; 4. Gear motor; 5. Motor mount; 6. Drive gear; 7. L-shaped frame; 8. L-shaped exhaust pipe; 9. Bracket; 10. Fixing frame; 11. Air inlet; 12. Left conical roller; 13. Right conical roller; 14. Middle cylinder; 15. Stirring plate; 16. Inlet / outlet; 17. Support cylinder; 18. Driven gear; 19. First straight pipe; 20. Second straight pipe; 21. Air hole; 22. Filter cloth; 23. Sealing plate; 24. Auxiliary support frame; 25. Support roller seat; 26. Support roller; 27. Connecting plate; 28. Valve. Detailed Implementation

[0017] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Please see Figure 1-3 This utility model provides a technical solution: a drum dryer that can be used in the production of sodium borohydride, including a frame and a detachable drum;

[0020] The frame includes a base 1, a left support 2, a right support 3, and a geared motor 4. The left support 2 and the right support 3 are set on the upper surface of the base 1. The geared motor 4 is also set on the upper surface of the base 1 at one end of the left support 2 via a motor seat 5. The output shaft of the geared motor 4 is equipped with a drive gear 6. The top of the left support 2 is equipped with an L-shaped frame 7. The L-shaped frame 7 is connected to an L-shaped exhaust pipe 8. The outer end of the L-shaped frame 7 is provided with a U-shaped groove. The L-shaped exhaust pipe 8 is provided with a connecting plate 27. The L-shaped exhaust pipe 8 is set in the U-shaped groove and is fastened to the L-shaped frame 7 by the connecting plate 27 and bolts to realize the installation and fixation of the L-shaped exhaust pipe 8. The outer side of the right support 3 is provided with a bracket 9. The upper surface of the bracket 9 is provided with a fixing bracket 10. The fixing bracket 10 is connected to an air inlet 11.

[0021] The detachable rollers include a left conical roller 12, a right conical roller 13, and an intermediate cylinder 14. The left conical roller 12 and the right conical roller 13 are connected to both ends of the intermediate cylinder 14 via flanges. Agitator plates 15 are provided on the inner walls of the left conical roller 12, the right conical roller 13, and the intermediate cylinder 14. An inlet / outlet 16 is provided on one side of the intermediate cylinder 14, and valves 28 are installed at the inlet / outlet 16 to open and close it. During drying, the inlet / outlet 16 is closed; during feeding or discharging, the inlet / outlet 16 is open. Support cylinders 17 are provided at the outer ends of the left conical roller 12 and the right conical roller 13. The left conical roller 12 and the right conical roller 13 are connected to the support cylinders 17. The support cylinder 17, which is rotatably connected to the left support 2 and the right support 3 and connected to the left conical roller 12, is provided with a driven gear 18, which meshes with the driving gear 6. One end of the L-shaped exhaust pipe 8 is inserted into the support cylinder 17 of the left conical roller 12, and one end of the air inlet 11 is inserted into the support cylinder 17 of the right conical roller 13. The inner end of the left conical roller 12 is provided with a first straight pipe 19 through a flange, and the inner end of the right conical roller 13 is provided with a second straight pipe 20 through a flange. The pipe wall of the second straight pipe 20 is evenly provided with several air holes 21. The first straight pipe 19 is wrapped with a filter cloth 22. The second straight pipe 20 extends to the middle cylinder 14, and a sealing plate 23 is provided at the end of the second straight pipe 20.

[0022] Two auxiliary support frames 24 are provided on the upper surface of the base 1 and between the left support 2 and the right support 3. Each auxiliary support frame 24 has two support rollers 26 at its top via support roller seats 25. The support rollers 26 at the top of the two auxiliary support frames 24 support the bottom of the left conical roller 12 and the right conical roller 13 respectively. The support of the auxiliary support frames 24 and the support rollers 26 ensures the support of the detachable rollers, thereby ensuring the overall stability.

[0023] Installation method and operating principle: First, install the geared motor 4 on the corresponding position on the upper surface of the base 1 via the motor mount 5. Install the first straight tube 19 inside the left conical roller 12 via a flange, and install the second straight tube 20 inside the right conical roller 13 via a flange. Then, connect the left conical roller 12 and the right conical roller 13 to the two ends of the intermediate cylinder 14 via flanges. Install two auxiliary brackets with support rollers 26 on the corresponding positions on the upper surface of the base 1. Rotately connect the left bracket 2 to the support cylinder 17 at the outer end of the left conical roller 12, and install the driven gear 18 on the outer end of the support cylinder 17 of the left conical roller 12. Rotately connect the right bracket 3 to the support cylinder 17 at the outer end of the right conical roller 13. Then, install the left bracket 2 and the right bracket 3 on the upper surface of the base 1 respectively. At this time, the support rollers 26 at the top of the two auxiliary support brackets 24 support the bottom of the left conical roller 12 and the right conical roller 13 respectively, and the driving gear 6 meshes with the driven gear 18. Place the L-shaped exhaust pipe 8 into the U-shaped groove at the outer end of the L-shaped frame 7, insert the bottom into the support cylinder 17 at the outer end of the left conical cylinder, and fasten the connecting plate 27 to the L-shaped frame 7 with bolts. Connect the air inlet 11 to the fixed frame 10 and insert it into the support cylinder 17 of the right conical cylinder to complete the installation. The dryer can be installed below the platform. When feeding, the inlet and outlet ports 16 face upwards. Open the valve 28 of the inlet and outlet ports 16. Sodium borohydride is fed into the detachable drum through the feeding pipe from the inlet and outlet ports 16. Close the valve 28 and start the reduction motor 4. The reduction motor 4 drives the detachable drum to rotate through the cooperation of the drive gear 6 and the driven gear 18. High-temperature gas enters from the air inlet 11 and enters any position inside the detachable drum through the air hole 21 of the second straight pipe 20. Excess hot gas passes through the first straight pipe 19 and is discharged from the L-shaped exhaust pipe 8. When discharging, the inlet and outlet ports 16 face upwards, and the valve 28 is opened to discharge. This utility model has a reasonable structure. The detachable roller is assembled from a left conical roller 12, a right conical roller 13, and a middle cylinder 14, which facilitates disassembly, assembly, and transportation. It also enables the installation of the first straight pipe 19 inside the left conical roller 12 and the second straight pipe 20 inside the right conical roller 13. The second straight pipe 20 inside the right conical roller 13 has several air holes 21 evenly opened on its pipe wall, and the second straight pipe 20 extends to the middle cylinder 14, thereby ensuring that the hot air is smoothly and evenly distributed inside the detachable roller, thus improving the drying effect.

[0024] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0025] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tumble dryer usable for sodium borohydride production, characterized by: The machine frame comprises a base and a detachable roller. The machine frame comprises a base (1), a left support (2), a right support (3) and a speed reducer motor (4), the upper surface of the base (1) is provided with the left support (2) and the right support (3), the upper surface of the base (1) is provided with the speed reducer motor (4) through a motor base (5) at one end of the left support (2), the output shaft of the speed reducer motor (4) is provided with a driving gear (6), the top end of the left support (2) is provided with an L-shaped frame (7), the L-shaped frame (7) is connected with an L-shaped exhaust pipe (8), the outer side of the right support (3) is provided with a bracket (9), the upper surface of the bracket (9) is provided with a fixing frame (10), the fixing frame (10) is connected with an air inlet (11). The detachable roller comprises a left conical roller (12), a right conical roller (13) and an intermediate cylinder (14), the left conical roller (12) and the right conical roller (13) are connected with both ends of the intermediate cylinder (14) through flanges, the inner walls of the left conical roller (12), the right conical roller (13) and the intermediate cylinder (14) are all provided with stirring plates (15), one side of the intermediate cylinder (14) is provided with an inlet and outlet (16), the outer ends of the left conical roller (12) and the right conical roller (13) are both provided with support cylinders (17), the left conical roller (12) and the right conical roller (13) are rotatably connected with the left support (2) and the right support (3) through the support cylinders (17), the support cylinder (17) connected with the left conical roller (12) is provided with a driven gear (18), the driven gear (18) is engaged with the driving gear (6), one end of the L-shaped exhaust pipe (8) is inserted into the support cylinder (17) of the left conical roller (12), one end of the air inlet (11) is inserted into the support cylinder (17) of the right conical roller (13), the inner end of the left conical roller (12) is provided with a first straight pipe (19) through a flange, the inner end of the right conical roller (13) is provided with a second straight pipe (20) through a flange, the pipe wall of the second straight pipe (20) is uniformly provided with a plurality of air holes (21), the first straight pipe (19) is wrapped with filter cloth (22), the second straight pipe (20) extends to the intermediate cylinder (14), and the end of the second straight pipe (20) is provided with a blocking plate (23).

2. The roller dryer for sodium borohydride production according to claim 1, characterized in that: Two auxiliary support frames (24) are arranged on the upper surface of the base (1) and between the left support (2) and the right support (3), two support rollers (26) are arranged on the top end of each auxiliary support frame (24) through a support roller base (25), and the support rollers (26) on the top ends of the two auxiliary support frames (24) support the bottoms of the left conical roller (12) and the right conical roller (13) respectively.

3. The roller dryer for sodium borohydride production according to claim 1, characterized in that: A U-shaped groove is formed in the outer end of the L-shaped frame (7), the L-shaped exhaust pipe (8) is provided with a connecting plate (27), and the L-shaped exhaust pipe (8) is arranged in the U-shaped groove and is fastened to the L-shaped frame (7) through the connecting plate (27) and bolts.

4. The roller dryer for sodium borohydride production according to claim 1, characterized in that: The inlet and outlet (16) is provided with a valve (28).

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