Hot air drum type dryer

Abstract

The utility model relates to a hot air drum-type dryer, which aims to solve the technical problems that when high-humidity or viscous materials (such as sludge and feed) are dried by the conventional drum-type dryer, the high-humidity or viscous materials are easy to adhere to the drum wall and a disturbance plate, and the materials can be caked mutually, so that the drying effect of the high-humidity or viscous materials is influenced. The main body mechanism comprises a drying cylinder, two fixing rings installed outside the drying cylinder and a discharging pipe communicating with one side of the bottom of the drying cylinder. The two fixing rings are provided with a first supporting plate and a second supporting plate correspondingly. The stirring mechanism comprises a first motor and a driving disc, the first motor is mounted at one end far away from the feed port of the drying cylinder, the driving disc is mounted in the inner cavity of the drying cylinder, and high-humidity or viscous materials are prevented from being adhered to the inner wall of the drying cylinder and the surface of the shovel plate when being dried, and are prevented from being caked mutually; and the drying effect of high-humidity or viscous materials is further achieved.

Description

Technical Field

[0001] This utility model relates to the field of dryers, specifically a hot air drum dryer. Background Technology

[0002] Dryers come in several types, including belt dryers, drum dryers, box dryers, and tower dryers. Among them, drum dryers are the most commonly used. Drum dryers typically use hot air drum drying, where hot air moves from the tail to the front, making full contact with the material. Through heat conduction and convection, the heat energy is directly transferred to the material, causing the moisture in the material to be continuously evaporated inside the drum.

[0003] Traditional rotary drum dryers tend to cause materials with high moisture content or stickiness (such as sludge and feed) to adhere to the drum wall and agitator plates, and the materials may also clump together, thus affecting the drying effect. Therefore, a new technical solution is needed to address this issue. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a hot air drum dryer to solve the technical problem that when the current drum dryer dries high humidity or sticky materials (such as sludge and feed), the materials tend to stick to the drum wall and the baffle plate, and the materials will clump together, thus affecting the drying effect of high humidity or sticky materials.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: A hot air drum dryer is designed, comprising:

[0006] The main structure includes a drying cylinder, two fixing rings installed outside the drying cylinder, and a discharge pipe connected to one side of the bottom of the drying cylinder. A first support plate and a second support plate are respectively provided on the two fixing rings.

[0007] The stirring mechanism includes a first motor installed at the end away from the feed inlet of the drying cylinder and a drive disc installed inside the drying cylinder. The drive end of the first motor is connected to the drive disc, and the outer side of the drive disc moves against the inner wall of the drying cylinder. A plurality of circularly distributed scrapers are installed at one end of the drive disc, and one end of each scraper moves against the inner wall of the drying cylinder. A plurality of L-shaped shovels are installed on each scraper.

[0008] The disintegration mechanism includes two rotating rods rotatably mounted on one end of the drive disk. Rubber rods are installed on the outer sides of both rotating rods, and a transmission mechanism is provided between the rotating rods and the drive disk.

[0009] Preferably, the transmission mechanism includes a groove formed at the end of the drive disc away from the rotating rod, a first gear and a second gear. One end of the rotating rod rotates through the drive disc and is placed in the groove. The first gear is mounted on the rotating rod in the groove. The second gear is slidably sleeved on the outside of the drive end of the first motor. A fixing rod is connected between the second gear and the inner wall of the drying cylinder, and the first gear meshes with the second gear.

[0010] Preferably, the first support plate includes a support frame and an adjusting plate slidably connected within the support frame. Limiting grooves are formed on both sides of the inner cavity of the support frame, and limiting blocks are slidably connected within each of the two limiting grooves. The two limiting blocks are respectively fixedly connected to both ends of the adjusting plate. A lead screw is rotatably connected between the upper and lower sides of the inner cavity of one of the limiting grooves, and one of the limiting blocks is threaded onto the outside of the lead screw. A second motor is installed on the top of the support frame near the lead screw. The drive end of the second motor rotatably passes through the support frame and is connected to the lead screw via a coupling. One end of each of the adjusting plate and the second support plate is rotatably connected to the grooves at the bottom of the two fixing rings via rotating shafts.

[0011] Preferably, the drying cylinder is provided with a hot air inlet pipe at one end near the first motor, an air inlet hole is opened in the groove, and a one-way valve is installed in the air inlet hole.

[0012] Preferably, the length of the rubber rod is greater than the distance between the rotating rod and the shovel plate, and the length of the rubber rod is less than the distance between the rotating rod and the scraper.

[0013] Preferably, the outer side of the adjusting plate moves against the inner cavity of the support frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention combines a drying drum, scraper, shovel, drive disc, groove, first motor, first gear, second gear, rotating rod, and rubber rod. The scraper rotates against the inner wall of the drying drum, cleaning away material adhering to it. Simultaneously, the drive disc, in conjunction with the first and second gears, causes the rotating rod to rotate, breaking up any clumps of material. Furthermore, the rubber rod's rotation contacts the shovel, and its elasticity causes it to strike the next shovel, vibrating it and removing any adhering material. This design effectively prevents high-humidity or sticky materials from adhering to the inner wall of the drying drum and the surface of the shovel, and also prevents material from clumping together, thus improving the drying effect for such materials. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall side structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall end face structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the drive disc and the scraper rod of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the fixing ring and the first support plate of this utility model;

[0020] Figure 5 This is a sectional front view of the connection between the support frame and the adjustment plate of this utility model.

[0021] In the diagram: 1. Drying cylinder; 11. Hot air inlet pipe; 12. Air inlet hole; 13. Discharge pipe; 2. Fixing ring; 21. First support plate; 211. Adjusting plate; 212. Second motor; 213. Support frame; 214. Limiting groove; 215. Lead screw; 216. Limiting block; 22. Second support plate; 3. First motor; 31. Scraper; 32. Shovel plate; 33. Rotating rod; 34. Rubber rod; 35. Drive disc; 36. First gear; 37. Second gear; 38. Groove; 39. Fixing rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Example 1: A hot air drum dryer, see [link to example]. Figures 1 to 5 ,include:

[0024] The main structure includes a drying cylinder 1, two fixing rings 2 installed outside the drying cylinder 1, and a discharge pipe 13 connected to one side of the bottom of the drying cylinder 1. A first support plate 21 and a second support plate 22 are respectively provided on the two fixing rings 2.

[0025] The stirring mechanism includes a first motor 3 installed at the end away from the feed inlet of the drying cylinder 1 and a drive disk 35 installed in the inner cavity of the drying cylinder 1. The drive end of the first motor 3 is connected to the drive disk 35, and the outer side of the drive disk 35 moves against the inner wall of the drying cylinder 1. A plurality of circularly distributed scrapers 31 are installed at one end of the drive disk 35, and one end of each scraper 31 moves against the inner wall of the drying cylinder 1. A plurality of L-shaped shovels 32 are installed on each scraper 31.

[0026] The dispersing mechanism includes two rotating rods 33 rotatably mounted on one end of a drive disc 35. Rubber rods 34 are mounted on the outer sides of each of the two rotating rods 33. The length of each rubber rod 34 is greater than the distance between the rotating rod 33 and the shovel plate 32, and less than the distance between the rotating rod 33 and the scraper 31. A transmission mechanism is provided between the rotating rods 33 and the drive disc 35. The transmission mechanism includes a groove 38 formed at the end of the drive disc 35 away from the rotating rods 33, a first gear 36, and a second gear 37. One end of the rotating rod 33 rotates through the drive disc 35 and is placed in the groove 38. The first gear 36 is installed on the rotating rod 33 in the groove 38. The second gear 37 is slidably sleeved on the outside of the drive end of the first motor 3. A fixing rod 39 is connected between the second gear 37 and the inner wall of the drying cylinder 1. The first gear 36 and the second gear 37 mesh. A hot air inlet pipe 11 is provided at the end of the drying cylinder 1 near the first motor 3. An air inlet hole 12 is opened in the groove 38, and a one-way valve is installed in the air inlet hole 12.

[0027] During operation, the material to be dried enters the drying cylinder 1 through the feed inlet. Hot air then enters the drying cylinder 1 through the hot air inlet pipe 11 and the air inlet hole 12. The first motor 3 drives the drive disc 35 to rotate, which in turn drives the scraper 31 and the shovel 32 to rotate. The shovel 32 scoops up the material at the bottom of the drying cylinder 1. When the shovel 32 rotates to a certain height, the scooped material falls, thus lifting the dried material and improving the drying effect. Simultaneously, the scraper 31 rotates against the inner wall of the drying cylinder 1, cleaning the material adhering to the inner wall. Furthermore, as the drive disc 35 rotates, the second gear 37 is fixed, and the first… The gear 36 rotates in conjunction with the drive disc 35. When the drive disc 35 rotates, it works with the first gear 36 to make the rotating rod 33 rotate. The rotating rubber rod 34 not only breaks up the clumps of material, but also comes into contact with the shovel plate 32 during its rotation. Because the rubber rod 34 is elastic, when it rotates past the shovel plate 32, it will strike the next shovel plate 32, causing the shovel plate 32 to vibrate. This cleans up the material adhering to the shovel plate 32, thus preventing the material from adhering to the inner wall of the drying cylinder 1 and the surface of the shovel plate 32 when drying high-humidity or sticky materials, and preventing the material from clumping together, further improving the drying effect of high-humidity or sticky materials.

[0028] For details, see Figure 1 , Figure 4 and Figure 5The first support plate 21 includes a support frame 213 and an adjusting plate 211 slidably connected within the support frame 213. The outer side of the adjusting plate 211 movably abuts against the inner cavity of the support frame 213. Limiting grooves 214 are formed on both sides of the inner cavity of the support frame 213. Limiting blocks 216 are slidably connected within each of the two limiting grooves 214, and the two limiting blocks 216 are respectively fixedly connected to both ends of the adjusting plate 211. A lead screw 215 is rotatably connected between the upper and lower sides of the inner cavity of one of the limiting grooves 214, and one of the limiting blocks 216 is threaded onto the outer side of the lead screw 215. A second motor 212 is installed on the top of the support frame 213 near the lead screw 215. The drive end of the second motor 212 rotates through the support frame 213 and is connected to the lead screw 215 via a coupling. One end of the adjusting plate 211 and the second support plate 22 are rotatably connected to the grooves 38 at the bottom of the two fixed rings 2 via rotating shafts. By starting the second motor 212, the lead screw 215 is driven to rotate. Since the limiting block 216 moves within the limiting groove 214, the height of the connection between the support frame 213 and the adjusting plate 211 can be adjusted, thereby adjusting the height of the feed inlet of the drying cylinder 1, which is to adjust the tilt angle of the drying cylinder 1 during use. This allows the speed at which the material moves during drying in the drying cylinder 1 to be adjusted according to the characteristics of the material being dried, thus improving the applicability of the drying cylinder 1 to drying different materials.

[0029] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A hot air drum dryer, characterized in that, include: The main structure includes a drying cylinder (1), two fixing rings (2) installed outside the drying cylinder (1) and a discharge pipe (13) connected to one side of the bottom of the drying cylinder (1). The two fixing rings (2) are respectively provided with a first support plate (21) and a second support plate (22). The stirring mechanism includes a first motor (3) installed at the end away from the feed inlet of the drying cylinder (1) and a drive disk (35) installed in the inner cavity of the drying cylinder (1). The drive end of the first motor (3) is connected to the drive disk (35), and the outer side of the drive disk (35) moves against the inner wall of the drying cylinder (1). A plurality of circularly distributed scrapers (31) are installed at one end of the drive disk (35), and one end of each scraper (31) moves against the inner wall of the drying cylinder (1). A plurality of L-shaped shovels (32) are installed on each scraper (31). The dispersing mechanism includes two rotating rods (33) rotatably mounted on one end of the drive disk (35), and rubber rods (34) are installed on the outer side of each of the two rotating rods (33). A transmission mechanism is provided between the rotating rods (33) and the drive disk (35).

2. The hot air drum dryer as described in claim 1, characterized in that, The transmission mechanism includes a groove (38) on the end of the drive disc (35) away from the rotating rod (33), a first gear (36) and a second gear (37). One end of the rotating rod (33) rotates through the drive disc (35) and is placed in the groove (38). The first gear (36) is mounted on the rotating rod (33) in the groove (38). The second gear (37) is slidably sleeved on the outside of the drive end of the first motor (3). A fixing rod (39) is connected between the second gear (37) and the inner wall of the drying cylinder (1). The first gear (36) meshes with the second gear (37).

3. A hot air drum dryer as described in claim 1, characterized in that, The first support plate (21) includes a support frame (213) and an adjusting plate (211) slidably connected within the support frame (213). Limiting grooves (214) are provided on both sides of the inner cavity of the support frame (213). Limiting blocks (216) are slidably connected within each of the two limiting grooves (214), and the two limiting blocks (216) are respectively fixedly connected to both ends of the adjusting plate (211). A lead screw (215) is rotatably connected between the upper and lower sides of the inner cavity of one of the limiting grooves (214). One of the limiting blocks (216) is threaded onto the outside of the lead screw (215). A second motor (212) is installed on the top of the support frame (213) near the lead screw (215). The drive end of the second motor (212) rotates through the support frame (213) and is connected to the lead screw (215) via a coupling. One end of the adjusting plate (211) and the second support plate (22) are rotatably connected to the grooves (38) at the bottom of the two fixing rings (2) via rotating shafts.

4. A hot air drum dryer as described in claim 2, characterized in that, The drying cylinder (1) is provided with a hot air inlet pipe (11) at one end near the first motor (3), and an air inlet hole (12) is provided in the groove (38), and a one-way valve is installed in the air inlet hole (12).

5. A hot air drum dryer as described in claim 1, characterized in that, The length of the rubber rod (34) is greater than the distance between the rotating rod (33) and the shovel plate (32), and the length of the rubber rod (34) is less than the distance between the rotating rod (33) and the scraper (31).

6. A hot air drum dryer as described in claim 3, characterized in that, The outer side of the adjusting plate (211) moves against the inner cavity of the support frame (213).

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