Roller drying device for compound fertilizer production

Abstract

The utility model discloses a roller drying device for compound fertilizer production, which comprises a bottom frame, a roller, a driving component, a material door, an air escape valve component, support frames, a first sealing connection sleeve, a second sealing connection sleeve, a feed hopper and a sheet, a first sealing connecting sleeve and a second sealing connecting sleeve are arranged at the upper ends of the front supporting frame and the rear supporting frame correspondingly, a roller is arranged between the first sealing connecting sleeve and the second sealing connecting sleeve, a discharging opening is formed in the outer wall of the roller, a material door is arranged in the discharging opening, and an air escape valve assembly is arranged on the rear side of the exterior of the second sealing connecting sleeve; a feeding port is formed in the front side of the outer portion of the first sealing connection sleeve, and a sheet is arranged in the roller. Compared with the prior art, the discharging device has the advantages that the utilization rate of hot air is increased, and discharging is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of compound fertilizer production technology, specifically a drum drying device for compound fertilizer production. Background Technology

[0002] In the production of granular compound fertilizer, the newly formed granules need to be dried for subsequent storage and transportation. During granule drying, the granules are typically lifted to form a curtain, allowing hot air to fully contact the material and thus dry it. Drum drying equipment is required for drying compound fertilizer granules.

[0003] The compound fertilizer production drum drying device described in announcement number CN217131689U includes a drying drum, a roller belt fixedly fitted to the outer wall of the drying drum, and symmetrical drive wheels located on both sides of the lower part of the drying drum. The drive wheels are in transmission contact with the roller belt. Symmetrical conical guards are fixed on both ends of the roller belt, and inverted conical wheels are fixed on both ends of the drive wheels. The conical guards abut against the outer wall of the inverted conical wheels. This utility model fixes inverted conical wheels on both sides of the drive wheels and symmetrical conical guards on both sides of the roller belt. This allows the conical guards to abut against the outer side of the inverted conical wheels during the rotation of the roller belt by the drive wheels, thereby improving the stability of the roller belt and drive wheels during transmission and making the drying drum safer during use.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art.

[0005] While the aforementioned drum drying device has solved some problems, it still has the following drawbacks:

[0006] (1) The drum drying device delivers hot air into the drum, but the hot air only serves as ventilation and heating. The time it stays inside the drum is short, so it cannot make full use of the heat energy of the hot air and has low utilization efficiency.

[0007] (2) The feed and discharge of the drum drying device are at both ends of the drum, which makes it inconvenient to discharge the dried compound fertilizer granules after drying. Utility Model Content

[0008] The purpose of this invention is to provide a drum drying device for compound fertilizer production.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A rotary drum dryer for compound fertilizer production includes:

[0011] The base frame has support frames fixedly connected to the front and rear of the upper outer end. The upper ends of the front and rear support frames are respectively fixedly connected to a first sealing connecting sleeve and a second sealing connecting sleeve. A feed hopper is provided on the front side of the outer side of the first sealing connecting sleeve. An air inlet pipe is fixedly connected to the front end of the outer side of the first sealing connecting sleeve. An air outlet pipe is fixedly connected to the rear end of the outer side of the second sealing connecting sleeve.

[0012] The roller is positioned above the outside of the base frame. Both ends of the roller are rotatably connected to the inside of the first sealing connecting sleeve and the second sealing connecting sleeve, respectively. Several evenly distributed blades are fixedly connected to the inner wall of the roller. A discharge port is opened in the middle of the outer wall of the roller. A movable cavity is opened inside the outer wall of the roller and communicates with the inside of the discharge port. A locking plate is fixedly connected to the end of the discharge port away from the movable cavity.

[0013] A drive assembly disposed between the support frame and the roller;

[0014] The material gate is an arc-shaped plate. The material gate is located inside the movable cavity and is compatible with the inside of the discharge port. A baffle plate for use with a locking plate is fixedly connected to the end of the material gate away from the movable cavity. A handle is fixedly connected to the outside of the material gate.

[0015] A vent valve assembly is disposed inside the vent pipe at one end away from the second sealing connection sleeve.

[0016] Furthermore, the rear end of the air inlet pipe extends through the first sealing connecting sleeve to the front side of the inside of the drum, the inside of the air outlet pipe and the inside of the drum are connected in a continuous manner, and a heating furnace is fixedly connected to the front end of the air inlet pipe.

[0017] Furthermore, the feed pipe at the lower end of the feed hopper extends through the first sealing connecting sleeve to the front side of the inside of the drum, and a butterfly valve is provided on the feed hopper.

[0018] Furthermore, the locking plate and the baffle can be connected by bolts to complete the closure of the material gate to the discharge port. After the material gate closes the discharge port, the end of it away from the baffle is located inside the movable cavity.

[0019] Furthermore, the driving component includes:

[0020] Mounting plate, the mounting plate being fixedly connected to the opposite side of the support frame;

[0021] A synchronous drive motor is fixedly connected to one side of the mounting plate that is far apart from the other side;

[0022] A drive gear is rotatably connected to one side of the mounting plate that is close to each other, and the shaft of the drive gear is fixedly connected to the output end of the synchronous drive motor.

[0023] Driven gear ring, the driven gear ring is sleeved on the outside of the drum at the front and back, the driven gear ring meshes with the drive gear through the external teeth.

[0024] Furthermore, the vent valve assembly includes:

[0025] A sleeve, which is fitted inside the vent pipe;

[0026] The first air-blocking ring block is fixedly connected to the upper end of the sleeve.

[0027] The second air-blocking ring block is fixedly connected to the lower end of the sleeve.

[0028] A valve ball is disposed inside the sleeve and is located between the first air-blocking ring block and the second air-blocking ring block, and the holes at the center of the valve ball and the second air-blocking ring block are compatible.

[0029] A connecting rod is fixedly connected to the upper end of the valve ball, and the other end of the connecting rod, which is connected to the valve ball, extends through the inside of the first air-blocking ring block to the upper side of the outer side of the sleeve.

[0030] Furthermore, the upper outer side of the first air-blocking ring block is provided with several evenly distributed vent holes that are connected to the inside of the sleeve. A baffle is fixedly connected to the upper end of the connecting rod, and a compression spring is sleeved on the outside of the connecting rod. The compression spring is located between the lower side of the first air-blocking ring block and the valve ball.

[0031] Furthermore, the discharge port is provided with sliding guide grooves at both the front and rear, and the material gate is fixedly connected with limiting sliders that cooperate with the sliding guide grooves at both the front and rear, and the sliding guide grooves extend into the interior of the movable cavity.

[0032] Furthermore, a guide hopper for use with the discharge port is fixedly connected to the upper middle part of the outer side of the base frame, and the side of the guide hopper away from the discharge port is inclined downward.

[0033] This utility model provides a drum drying device for compound fertilizer production, which has the following beneficial effects:

[0034] (1) The sleeve is fitted into the air outlet of the air outlet pipe. The sleeve is equipped with a first and second annular air blocking ring block inside the sleeve. A valve ball is installed inside the sleeve. The valve ball is squeezed downward by the compression spring on the upper connecting rod. Within a certain pressure range, the air outlet pipe is blocked, the hot air stays in the drum for a longer time, and the utilization rate is increased. It can also release pressure on its own after exceeding the threshold pressure, which is safe enough.

[0035] (2) By opening the discharge port on the side wall of the drum, after drying is completed and cooled to a certain temperature, the material gate is opened and the material in the drum is discharged by gravity. The discharge port is opened in the middle, and the two sides inside the drum are also convenient for collecting and discharging compound fertilizer granules. After discharge, the material is bagged through the guide plate. Attached Figure Description

[0036] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0037] Figure 1 This utility model relates to a three-dimensional rotary drum drying device for compound fertilizer production. Figure 1 .

[0038] Figure 2 This utility model relates to a three-dimensional rotary drum drying device for compound fertilizer production. Figure 2 .

[0039] Figure 3 This utility model discloses a partial three-dimensional structure of a drum drying device for compound fertilizer production. Figure 1 .

[0040] Figure 4 This utility model discloses a partial three-dimensional structure of a drum drying device for compound fertilizer production. Figure 2 .

[0041] Figure 5 This is a three-dimensional enlargement of a portion of the structure of a drum drying device for compound fertilizer production according to this utility model. Figure 1 .

[0042] Figure 6 This is a three-dimensional enlargement of a portion of the structure of a drum drying device for compound fertilizer production according to this utility model. Figure 2 .

[0043] Figure 7 This is a three-dimensional enlargement of a portion of the structure of a drum drying device for compound fertilizer production according to this utility model. Figure 3 .

[0044] The diagram shows: 1. Base frame; 2. Roller; 3. Drive assembly; 301. Mounting plate; 302. Synchronous drive motor; 303. Drive gear; 304. Driven gear ring; 4. Material gate; 5. Vent valve assembly; 501. Sleeve; 502. First air-blocking ring block; 503. Second air-blocking ring block; 504. Valve ball; 505. Connecting rod; 506. Vent hole; 507. Baffle plate; 508. Compression spring; 6. Support frame; 7. First sealing connecting sleeve; 8. Second sealing connecting sleeve; 9. Feed hopper; 10. Air inlet pipe; 11. Air outlet pipe; 12. Lifting plate; 13. Discharge port; 14. Movable cavity; 15. Locking plate; 16. Baffle plate; 17. Handle; 18. Heating furnace; 19. Butterfly valve; 20. Sliding guide rail groove; 21. Limiting slider; 22. Guide hopper. Detailed Implementation

[0045] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses consistent with some aspects of this disclosure as detailed in the appended claims.

[0046] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0047] Example 1:

[0048] like Figures 1 to 7 As shown, this embodiment proposes a drum drying device for compound fertilizer production, including a base frame 1, a drum 2, a drive assembly 3, a material gate 4, a vent valve assembly 5, a support frame 6, a first sealing connecting sleeve 7, a second sealing connecting sleeve 8, a feed hopper 9, and a stirring and lifting disc 12 disposed inside the drum 2 for stirring and lifting compound fertilizer particles.

[0049] The rectangular base frame 1 has support frames 6 fixedly connected to the front and rear of its upper outer end. At the upper end of the support frame 6, a first sealing connecting sleeve 7 and a second sealing connecting sleeve 8 are fixedly connected to the front and rear of the support frame 6, respectively. The openings of the first sealing connecting sleeve 7 and the second sealing connecting sleeve 8 face each other. A roller 2 is set between the first sealing connecting sleeve 7 and the second sealing connecting sleeve 8. The front and rear ends of the roller 2 are rotatably connected to the interior of the first sealing connecting sleeve 7 and the second sealing connecting sleeve 8, respectively, so that the roller 2 is supported above the base frame 1 and can rotate. A heating furnace 18 is set in front of the base frame 1. An air inlet pipe 10 is fixedly connected to the upper rear end of the heating furnace 18. The rear end of the air inlet pipe 10 passes through the first sealing connecting sleeve 7 and enters the front of the inside of the roller 2 to deliver high-temperature hot air to the inside of the roller 2.

[0050] A feed hopper 9 is fixedly connected to the upper side of the outer front end of the first sealing connecting sleeve 7. A butterfly valve 19 is installed on the feed hopper 9 to control the feeding and sealing of the drum 2. The conveying pipe at the lower end of the feed hopper 9 extends from the first sealing connecting sleeve 7 to the inner front side of the drum 2. The feed pipe of the feed hopper 9 is above the air inlet pipe 10. When conveying materials, hot air can blow the materials into the inside of the drum 2. In order to make the drum 2 rotate, drive gears 303 are fitted on the front and rear of the outside of the drum 2. Mounting plates 301 are fixedly connected to the opposite sides of the two support frames 6. Synchronous drive motors 302 are fixedly connected to the opposite sides of the mounting plates 301. The output ends of the synchronous drive motors 302 that are close to each other are fixedly connected to the drive gears 303 that are rotatably connected to the opposite sides of the mounting plates 301 through a rotating shaft. The drive gears 303 and the external teeth of the driven gear ring 304 mesh together. The two synchronous drive motors 302 are controlled to rotate synchronously by the PLC control system, which drives the drum 2 to rotate.

[0051] Several evenly distributed agitators 12 are fixedly connected to the inner wall of the drum 2. When the drum 2 rotates, they can agitate and mix the compound fertilizer granules inside the drum 2. A discharge port 13 is opened in the middle of one side of the outer side of the drum 2. The top of the discharge port 13 is opened inside the inner wall of the drum 2, and a movable cavity 14 is opened. The movable cavity 14 and the discharge port 13 are connected together. A material gate 4 is set inside the discharge port 13. The material gate 4 is an arc-shaped plate. Sliding guide grooves 20 are opened at the front and back of the discharge port 13. Limiting sliders 21 are fixedly connected at the front and back of the material gate 4. The sliding guide grooves 20 extend to the movable cavity 13. Inside cavity 14, a locking plate 15 is fixedly connected to the lower edge of the outer side of outlet 13, and a baffle 16 is fixedly connected to the lower outer side of material gate 4. The baffle 16 and locking plate 15 can be connected together by bolts to achieve a seal between material gate 4 and outlet 13. A handle 17 is also fixedly connected to the outer side of material gate 4 to facilitate opening and closing of material gate 4. A guide hopper 22 is fixedly connected to the upper outer side of base frame 1. When outlet 13 is rotated to the lower side, outlet 13 is aligned with guide hopper 22, and material gate 4 is opened upward to allow the compound fertilizer granules inside roller 2 to fall out. The side of guide hopper 22 away from material gate 4 is tilted downward to facilitate material collection.

[0052] To allow hot air and moisture inside the roller 2 to escape, an air outlet pipe 11 is fixedly connected to the outer rear end of the second sealing sleeve 8. A sleeve 501 is fitted into the air outlet at the inner rear end of the air outlet pipe 11. A first air-blocking ring block 502 is fixedly connected to the upper inner side of the sleeve 501, and a second air-blocking ring block 503 is fixedly connected to the lower inner side of the sleeve 501. A valve ball 504 is installed inside the sleeve 501, and a connecting rod 505 is fixedly connected to the upper end of the valve ball 504. The upper end of the connecting rod 505 extends from the center hole of the first air-blocking ring block 502 to the upper outer side of the sleeve 501. Furthermore, a baffle 507 is fixedly connected to the upper end of the connecting rod 505, and a compression spring 508 is sleeved on the connecting rod 505. The compression spring 508 presses the valve ball 504 downward, and the valve ball 504 blocks the hole in the middle of the second air-blocking ring block 503. The air outlet pipe 11 is closed. After the valve ball 504 moves upward, hot air and water vapor flow into the interior of the sleeve 501 from the hole in the center of the second air-blocking ring block 503, and then spray out from the interior of several evenly distributed vent holes 506 opened on the upper edge of the first air-blocking ring block 502, which applies a certain resistance to the air outlet, increases the number of specimens with heat staying inside the drum 2, and increases the utilization rate of hot air.

[0053] Compound fertilizer granules are added into the drum 2 through the feed hopper 9. The baffle 16 and locking plate 15 are locked with bolts to close the discharge port. Hot air is introduced into the drum 2 through the heating furnace 18 and the air inlet pipe 10. The two synchronous drive motors 302 are started. The drum 2 rotates under the action of the drive gear 303 on the driven gear ring 304. The internal shovels 12 stir the compound fertilizer granules inside the drum 2, increasing the contact between the compound fertilizer granules and the hot air. After a certain amount of hot air is introduced into the drum 2, the internal air pressure rises and pushes up the valve ball 504. When the internal air pressure is insufficient to push up the compression spring 508, the valve ball 504 automatically moves down and blocks the hole in the center of the second air-blocking ring block 503. When the internal pressure of the drum 2 rises to the threshold again, the hot air stays in the drum 2 for a longer time. After the inside of the drum 2 cools down, the material gate 4 is opened and the dried compound fertilizer granules are led out and bagged using the guide hopper 22.

[0054] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and components is omitted in the specific implementation of this disclosure. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drum drying device for compound fertilizer production, characterized in that: include: The base frame (1) has support frames (6) fixedly connected to the front and rear of the upper outer end of the base frame (1). The upper ends of the front and rear support frames (6) are respectively fixedly connected to a first sealing connecting sleeve (7) and a second sealing connecting sleeve (8). A feed hopper (9) is provided on the front side of the first sealing connecting sleeve (7). An air inlet pipe (10) is fixedly connected to the front end of the first sealing connecting sleeve (7). An air outlet pipe (11) is fixedly connected to the rear end of the second sealing connecting sleeve (8). The roller (2) is positioned above the outside of the base frame (1). The two ends of the roller (2) are rotatably connected to the inside of the first sealing connecting sleeve (7) and the second sealing connecting sleeve (8), respectively. A number of evenly distributed blades (12) are fixedly connected to the inner wall of the roller (2). A discharge port (13) is opened in the middle of the outer wall of the roller (2). An active cavity (14) is opened inside the outer wall of the roller and is connected to the inside of the discharge port (13). A locking plate (15) is fixedly connected to the end of the discharge port (13) away from the active cavity (14). A drive assembly (3) is disposed between the support frame (6) and the roller (2); Material gate (4), the material gate (4) is an arc-shaped plate, the material gate (4) is located inside the movable cavity (14), and the material gate (4) is adapted to the inside of the discharge port (13). A baffle (16) for use with the locking plate (15) is fixedly connected to the end of the material gate (4) away from the movable cavity (14). A handle (17) is fixedly connected to the outside of the material gate (4). The vent valve assembly (5) is located inside the vent pipe (11) at one end away from the second sealing connection sleeve (8).

2. The rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The rear end of the air inlet pipe (10) extends through the first sealing connecting sleeve (7) to the front side of the inside of the drum (2). The inside of the air outlet pipe (11) and the inside of the drum (2) are connected in a continuous manner. The front end of the air inlet pipe (10) is fixedly connected to a heating furnace (18).

3. The rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The feed pipe at the lower end of the feed hopper (9) extends through the first sealing connecting sleeve (7) to the front side of the inside of the drum (2), and a butterfly valve (19) is provided on the feed hopper (9).

4. The rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The locking plate (15) and the baffle (16) can be connected by bolts to complete the closure of the material gate (4) to the discharge port (13). After the material gate (4) closes the discharge port (13), the end of it away from the baffle (16) is located inside the movable cavity (14).

5. A rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The driving component (3) includes: Mounting plate (301), said mounting plate (301) is fixedly connected to the side of the support frame (6) that is far apart from each other; A synchronous drive motor (302) is fixedly connected to the opposite side of the mounting plate (301); A drive gear (303) is rotatably connected to one side of the mounting plate (301) that is close to each other, and the shaft of the drive gear (303) is fixedly connected to the output end of the synchronous drive motor (302). Driven gear ring (304) is sleeved on the outside of the roller (2) and meshes with the drive gear (303) through the external teeth.

6. The rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The vent valve assembly (5) includes: Sleeve (501), which is fitted inside the air outlet pipe (11); The first air-blocking ring block (502) is fixedly connected to the upper end of the sleeve (501); The second air-blocking ring block (503) is fixedly connected to the lower end of the sleeve (501); Valve ball (504) is disposed inside sleeve (501). The valve ball (504) is located between the first air-blocking ring block (502) and the second air-blocking ring block (503), and the holes at the center of the valve ball (504) and the second air-blocking ring block (503) are compatible. A connecting rod (505) is fixedly connected to the upper end of the valve ball (504). The other end of the connecting rod (505) connected to the valve ball (504) extends through the inside of the first air-blocking ring block (502) to the upper side of the outside of the sleeve (501).

7. A rotary drum dryer for compound fertilizer production according to claim 6, characterized in that: The first air-blocking ring block (502) has several evenly distributed vent holes (506) on its upper outer side that are connected to the inside of the sleeve (501). A baffle (507) is fixedly connected to the upper end of the connecting rod (505). A compression spring (508) is sleeved on the outside of the connecting rod (505). The compression spring (508) is located between the lower side of the first air-blocking ring block (502) and the valve ball (504).

8. A rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The discharge port (13) has sliding guide grooves (20) at both the front and back. The material gate (4) is fixedly connected to the front and back with limiting sliders (21) that cooperate with the sliding guide grooves (20). The sliding guide grooves (20) extend into the movable cavity (14).

9. A rotary drum dryer for compound fertilizer production according to claim 1, characterized in that: The upper middle part of the base frame (1) is fixedly connected to a guide hopper (22) for use with the discharge port (13), and the guide hopper (22) is inclined downward on the side away from the discharge port (13).

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