Drying device for compound fertilizer production

Abstract

The utility model provides a drying device for compound fertilizer production, and solves the problems that the drying efficiency is influenced by the rotating speed of a roller, and the conveying speed of materials in the roller is inconvenient to control at the same time at the high rotating speed of an existing roller dryer, so that the drying efficiency is limited, the drying time of the materials is increased, and the drying efficiency is influenced. And the yield of the roller dryer is influenced. The second arc-shaped baffles are arranged on one sides of the first arc-shaped baffles, the second arc-shaped baffles are rotated through the adjusting mechanisms, and then the size of the gap between every two adjacent first arc-shaped baffles is changed, so that the roller can change the flowing speed of materials in the roller at a high rotating speed, and the material conveying efficiency is improved. The staying time of the materials in the roller is prolonged or shortened, the drying efficiency is improved, the drying yield is improved, meanwhile, the conveying speed of the materials is adjusted according to the material humidity, and the situation that when the materials are discharged from the roller, the drying effect is not ideal or the materials are too dry, secondary drying is needed or the material quality is affected can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of compound fertilizer production, in particular to a drying device for compound fertilizer production. Background Art

[0002] Compound fertilizer refers to a chemical fertilizer containing two or more nutrients. Compound fertilizer has the advantages of high nutrient content, few by-components and good physical properties. It plays a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops. In the production process of compound fertilizer, a drying device is required.

[0003] Compound fertilizer is usually dried using a drum dryer. During this process, the moisture content and heating temperature of the material will affect the output of the drum dryer. The existing technology changes the residence time of the material in the drum by adjusting the rotation speed of the drum to ensure that the material is fully dried. For materials with a high moisture content, it is usually necessary to reduce the rotation speed of the drum so that the material can obtain a sufficient residence time in the drum to achieve an ideal drying effect; however, the rotation speed of the drum will also affect the drying efficiency. The existing drum dryer is not convenient for simultaneously controlling the conveying speed of the material in the drum at a high rotation speed, which limits the drying efficiency, increases the drying time of the material, and affects the output of the drum dryer. Utility Model Content

[0004] In order to solve the problem in the background technology that the drum rotation speed also affects the drying efficiency, the existing drum dryer is not convenient to simultaneously control the conveying speed of the material in the drum at a high rotation speed, thereby limiting the drying efficiency, increasing the drying time of the material, and affecting the output of the drum dryer, the utility model proposes a drying device for compound fertilizer production.

[0005] The technical solution of the utility model is: a drying device for compound fertilizer production, comprising a base frame and a drum, wherein a plurality of groups of shaft seats arranged at intervals on the left and right are fixed on the base frame, two shaft seats in each group are arranged at intervals on the front and back, and rollers are rotatably provided on the shaft seats;

[0006] The drum is a cylindrical structure extending in the left-right direction and transparent in the left-right direction. A hot air generating device is provided at the right end of the drum. A feeding device is provided at the right end of the drum. A fixed sleeve on the drum is provided with a plurality of guide rings spaced apart from each other. Guide rings are rolled on the rollers located in the same front-to-back direction. A driving device is provided on the chassis to drive the drum to rotate.

[0007] Multiple groups of first arc-shaped baffles are fixedly provided in the drum at intervals. The multiple first arc-shaped baffles in each group are evenly distributed along the circumferential direction. The first arc-shaped baffles and the drum are perpendicular to each other, and a gap is formed between two adjacent first arc-shaped baffles for the material to pass through.

[0008] A second arc baffle that can slide along its extension direction is provided on the left side of the first arc baffle. An adjustment mechanism is provided in the drum, and the second arc baffle is provided on the adjustment mechanism. The adjustment mechanism is used to rotate the second arc baffle to change the size of the gap between two adjacent first arc baffles.

[0009] Preferably, multiple groups of fixed rods arranged at intervals on the left and right are rotatably provided in the drum, and the multiple fixed rods in each group are evenly distributed in the circumferential direction and extend along the radial direction of the drum. The fixed rods of the same group are commonly fixed with a sleeve at the end away from the drum, and the sleeve is concentrically arranged with the drum. The adjustment mechanism includes a long shaft rotatably passed through the multiple sleeves, multiple connecting rods are fixed on the outer circumferential surface of the long shaft, and the second arc-shaped baffle is fixed at the end of the connecting rod away from the long shaft; the left end of the long shaft passes through the sleeve on the left and is fixed with a turning handle.

[0010] Preferably, the right end of the long shaft passes through the sleeve located on the right, and locking mechanisms are provided at both ends of the long shaft. The locking mechanisms are used to fix the long shaft to prevent the second arc-shaped baffle from rotating after adjustment. Threaded grooves are provided at both ends of the long shaft. The locking mechanism includes a threaded sleeve threadedly mounted on the long shaft through the threaded groove. The threaded sleeve is fixed with a plurality of rotating rods evenly distributed along its circumference. An annular plate is fixed to one end of the threaded sleeve close to the sleeve, and the annular plate is slidably mounted on the rotating rod. A fixing plate is fixed on the rotating rod, and the fixing plate is located between the annular plate and the sleeve, and the fixing plate is abutted against one side of the sleeve. The threaded sleeve is used to clamp the fixing plate between the annular plate and the sleeve.

[0011] Preferably, an anti-slip groove is provided on one side of the fixing plate close to the sleeve.

[0012] Preferably, the driving device includes a driving motor fixed on the base frame, a spur gear is fixed on the end of the output shaft of the driving motor, a gear ring is fixed on the middle fixed sleeve of the drum, and the spur gear is meshed with the gear ring.

[0013] Preferably, a plurality of connecting blocks spaced apart along the circumferential direction of the gear ring are fixedly provided between the gear ring and the drum.

[0014] Preferably, the right end of the drum is fixed with a spiral blade evenly distributed along its circumferential direction, and a plurality of groups of L-shaped plates spaced apart left and right are fixed inside the drum. Each group of L-shaped plates is staggered left and right with the first arc-shaped baffle, and each group of L-shaped plates is evenly distributed along the circumferential direction.

[0015] Advantages of the utility model: The utility model can block the material and slow down the flow speed of the material in the drum by arranging multiple groups of first arc-shaped baffles arranged at intervals on the left and right sides in the drum, so as to ensure the residence time of the material in the drum while maintaining a high speed of the drum, thereby increasing the drying time of the material and improving the drying output.

[0016] The utility model provides a second curved baffle on one side of the first curved baffle, and rotates the second curved baffle through an adjusting mechanism to block the interval between two adjacent first curved baffles, thereby changing the size of the gap between the two adjacent first curved baffles, so that the drum can change the flow speed of the material in the drum at a high speed, increase or decrease the residence time of the material in the drum, improve the drying efficiency, and increase the drying output. At the same time, the material conveying speed is adjusted according to the moisture content of the material, which can avoid unsatisfactory drying effect or excessive drying of the material when the material is discharged from the drum, resulting in the need for secondary drying or affecting the quality of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Another perspective structural diagram;

[0020] Figure 3 This is a front cross-sectional view of the structure of the roller of the utility model;

[0021] Figure 4 For this utility model Figure 3 Schematic diagram of the structure of the middle adjustment mechanism.

[0022] In the figure: 1. base frame; 11. shaft seat; 12. roller; 2. roller; 21. guide ring; 22. spiral blade; 23. L-shaped plate; 3. driving device; 31. driving motor; 32. spur gear; 33. gear ring; 4. connecting block; 5. first arc baffle; 6. second arc baffle; 7. adjusting mechanism; 71. long shaft; 711. threaded groove; 712. threaded sleeve; 713. rotating rod; 714. annular plate; 715. fixing plate; 72. connecting rod; 73. rotating handle; 8. fixing rod; 9. sleeve. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: A drying device for compound fertilizer production, such as Figure 1-4 As shown, it includes a base frame 1 and a drum 2. A plurality of groups of shaft seats 11 are fixedly provided on the base frame 1 and are spaced apart from each other. The two shaft seats 11 of each group are spaced apart from each other. A roller 12 is rotatably provided on the shaft seat 11. The drum 2 is a cylindrical structure extending in the left and right directions and transparent in the left and right directions. A hot air generating device is provided at the right end of the drum 2. The hot air generating device is used to provide hot air into the drum 2 so that the material can be evenly heated and efficiently dried in the drum. Specifically, the hot air generating device includes a burner, a heat exchanger and a fan. The fuel is burned by the burner to generate high-temperature gas, which is transferred to the flowing air through the heat exchanger. The fan sucks in air and heats it before sending it to the drum 2. For technicians in the field, the hot air generating device is a well-known technology, which is not shown in the figure and will not be described in detail. A feeding device is provided at the right end of the drum 2, which is used to feed the material into the drum 2. For technicians in the field, the feeding device is a well-known technology, which is not shown in the figure and will not be described in detail. A plurality of guide rings 21 are fixedly provided on the drum 2 at intervals on the left and right, and a guide ring 21 is rolled on the rollers 12 located in the same front and rear direction. The guide ring 21 is used to guide the rotation of the rollers 12.

[0025] A driving device 3 is provided on the base frame 1, which is used to drive the drum 2 to rotate, so that the material is continuously tumbling in the drum 2 to speed up the drying efficiency. Specifically, the driving device 3 includes a driving motor 31 fixed on the base frame 1, and a spur gear 32 is fixedly provided at the end of the output shaft of the driving motor 31. A gear ring 33 is fixedly provided on the middle part of the drum 2, and the spur gear 32 is meshed with the gear ring 33; the driving motor 31 drives the spur gear 32 to rotate, and can drive the drum 2 to rotate along the roller 12 under the action of the guide ring 21 through the gear ring 33.

[0026] A plurality of connecting blocks 4 spaced apart along the circumferential direction are fixedly provided between the gear ring 33 and the drum 2. The connecting blocks 4 are used to avoid direct contact between the gear ring 33 and the drum 2, which would affect the gear ring 33 through heat transfer when the temperature of the drum 2 is high, causing the temperature of the gear ring 33 to be too high, thereby affecting the transmission efficiency.

[0027] A plurality of groups of first arc-shaped baffles 5 spaced apart from each other are fixedly provided in the drum 2. The plurality of first arc-shaped baffles 5 in each group are evenly arranged in the circumferential direction. The first arc-shaped baffles 5 and the drum 2 are arranged perpendicular to each other. A gap for the material to pass through is formed between two adjacent first arc-shaped baffles 5. The first arc-shaped baffles 5 can block the material and slow down the flow speed of the material in the drum 2, so that the drum 2 can maintain a high rotation speed while ensuring the residence time of the material in the drum 2, thereby increasing the drying time of the material and improving the drying output.

[0028] A second curved baffle 6 that can slide along its extension direction is provided on the left side of the first curved baffle 5. The first curved baffle 5 and the second curved baffle 6 have the same structure and size. An adjusting mechanism 7 is provided in the drum 2. The second curved baffle 6 is provided on the adjusting mechanism 7. The adjusting mechanism 7 is used to rotate the second curved baffle 6 to block the interval between the two adjacent first curved baffles 5, thereby changing the size of the gap between the two adjacent first curved baffles 5. Specifically, a plurality of groups of fixed rods 8 arranged at intervals left and right are rotatably provided in the drum 2. The plurality of fixed rods 8 in each group are evenly distributed in the circumferential direction and extend along the radial direction of the drum 2. The same group of fixed rods 8 are fixed with a sleeve 9 at one end away from the drum 2. The sleeve 9 is concentrically arranged with the drum 2. The adjusting mechanism 7 includes a long shaft 71 rotatably passed through the plurality of sleeves 9. A plurality of connecting rods 72 are fixed on the outer peripheral surface of the long shaft 71, and the second curved baffle 6 is fixed at the end of the connecting rod 72 away from the long shaft 71; the left end of the long shaft 71 passes through the sleeve 9 located on the left and is fixed with a rotating handle 73. By rotating the rotating handle 73, the long shaft 71 is driven to rotate, and then the plurality of connecting rods 72 and the second curved baffle 6 are driven to rotate, which can change the size of the gap between two adjacent first curved baffles 5, so that the drum 2 can change the flow speed of the material in the drum 2 at a high speed, increase or decrease the residence time of the material in the drum 2, improve the drying efficiency, and increase the drying output. At the same time, the material conveying speed is adjusted according to the moisture content of the material, which can avoid unsatisfactory drying effect or excessive drying of the material when it is discharged from the drum 2, resulting in the need for secondary drying or affecting the quality of the material.

[0029] The right end of the long shaft 71 passes through the sleeve 9 located on the right, and a locking mechanism is provided at both ends of the long shaft 71. The locking mechanism is used to fix the long shaft 71 to prevent the second arc baffle 6 from rotating after adjustment. Specifically, a threaded groove 711 is provided at both ends of the long shaft 71. The locking mechanism includes a threaded sleeve 712 threadedly sleeved on the long shaft 71 through the threaded groove 711. A plurality of rotating rods 713 are fixed on the threaded sleeve 712 and are evenly distributed along the circumference thereof. An annular plate 714 is fixed on one end of the threaded sleeve 712 close to the sleeve 9. The annular plate 714 is slidably sleeved on the rotating rod 7 When the locking cam 711 is in the unlocked position, the locking cam 712 is in the unlocked position, and the locking cam 713 is in the unlocked position, so that the locking cam 711 can be locked.

[0030] The right end of the drum 2 is fixed with a spiral blade 22 evenly distributed along its circumferential direction. The spiral blade 22 is used to guide the material to enter the drum 2 smoothly; a plurality of groups of L-shaped plates 23 spaced apart left and right are fixed in the drum 2. Each group of L-shaped plates 23 is staggered left and right with the first arc-shaped baffle 5. The L-shaped plates 23 of each group are evenly distributed along the circumferential direction. The L-shaped plates 23 are used to drive the material to move during rotation to improve the drying efficiency of the material.

[0031] Working principle: When in use, the driving motor 31 drives the spur gear 32 to rotate, and can drive the drum 2 to rotate along the roller 12 under the action of the guide ring 21 through the gear ring 33, and at the same time start the feeding device and the hot air generating device. The feeding device inputs the material into the drum 2, and the drum 2 continuously rolls the material during the rotation process. The hot air generating device inputs hot air into the drum 2 to dry the material. At the same time, the material is blocked by the first arc baffle 5 and the second arc baffle 6, which slows down the flow speed of the material in the drum 2, and finally the dried material is discharged from the left end of the drum 2.

[0032] When it is necessary to adjust the material conveying speed according to the moisture content of the material, the left and right rotating rods 713 are screwed in turn to drive the threaded sleeve 712 and the annular plate 714 to rotate, and the annular plate 714 is released from the squeeze on the fixed plate 715. Then, the rotating handle 73 is rotated to rotate the long shaft 71 and multiple connecting rods 72 and the second arc baffle 6, thereby changing the size of the gap between the two adjacent first arc baffles 5. Then, the left and right rotating rods 713 are reversed to re-clamp the fixed plate 715 between the annular plate 714 and the sleeve 9.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A drying device for compound fertilizer production, characterized by: The invention comprises a base frame (1) and a roller (2), wherein a plurality of groups of shaft seats (11) are fixedly provided on the base frame (1) and are spaced apart from each other. The two shaft seats (11) in each group are spaced apart from each other, and rollers (12) are rotatably provided on the shaft seats (11); The drum (2) is a cylindrical structure extending in the left-right direction and being transparent in the left-right direction. A hot air generating device is provided at the right end of the drum (2). A feeding device is provided at the right end of the drum (2). A plurality of guide rings (21) are provided on the fixed sleeve of the drum (2) at intervals on the left and right. The guide rings (21) are provided on the rollers (12) located in the same front-back direction. A driving device (3) is provided on the base frame (1). The driving device (3) is used to drive the drum (2) to rotate. A plurality of groups of first arc-shaped baffles (5) spaced apart from each other are fixedly provided in the drum (2), the plurality of first arc-shaped baffles (5) in each group are evenly arranged in the circumferential direction, the first arc-shaped baffles (5) and the drum (2) are arranged perpendicular to each other, and a gap for the material to pass through is formed between two adjacent first arc-shaped baffles (5); A second arc-shaped baffle (6) capable of sliding along the extension direction of the first arc-shaped baffle (5) is provided on the left side thereof. An adjusting mechanism (7) is provided in the drum (2). The second arc-shaped baffle (6) is arranged on the adjusting mechanism (7). The adjusting mechanism (7) is used to rotate the second arc-shaped baffle (6) to change the size of the gap between two adjacent first arc-shaped baffles (5).

2. A drying device for compound fertilizer production according to claim 1, characterized in that: A plurality of groups of fixed rods (8) arranged at intervals on the left and right are rotatably provided in the drum (2). The plurality of fixed rods (8) in each group are evenly distributed in the circumferential direction and extend in the radial direction of the drum (2). A sleeve (9) is fixedly provided at one end of the fixed rods (8) of the same group away from the drum (2). The sleeve (9) is concentrically provided with the drum (2). The adjustment mechanism (7) comprises a long shaft (71) rotatably passed through the plurality of sleeves (9). A plurality of connecting rods (72) are fixedly provided on the outer circumferential surface of the long shaft (71). The second arc-shaped baffle (6) is fixedly provided at one end of the connecting rod (72) away from the long shaft (71); the left end of the long shaft (71) passes through the sleeve (9) located on the left and is fixedly provided with a rotating handle (73).

3. A drying device for compound fertilizer production according to claim 2, characterized in that: The right end of the long shaft (71) passes through the sleeve (9) located on the right, and a locking mechanism is provided at both ends of the long shaft (71). The locking mechanism is used to fix the long shaft (71) to prevent the second arc-shaped baffle (6) from rotating after adjustment. The ends of the long shaft (71) are provided with a threaded groove (711). The locking mechanism includes a threaded sleeve (712) threadedly sleeved on the long shaft (71) through the threaded groove (711). A plurality of rotating rods (712) uniformly arranged along the circumference of the threaded sleeve (712) are fixed on the threaded sleeve (712). 13), an annular plate (714) is fixedly provided at one end of the threaded sleeve (712) close to the sleeve (9), the annular plate (714) is slidably sleeved on the rotating rod (713), a fixing plate (715) is fixedly provided on the rotating rod (713), the fixing plate (715) is located between the annular plate (714) and the sleeve (9), and the fixing plate (715) is close to one side of the sleeve (9), and the threaded sleeve (712) is used to clamp and fix the fixing plate (715) between the annular plate (714) and the sleeve (9).

4. A drying device for compound fertilizer production according to claim 3, characterized in that: An anti-slip groove is provided on one side of the fixing plate (715) close to the sleeve (9).

5. The drying device for compound fertilizer production according to claim 1, characterized in that: The driving device (3) comprises a driving motor (31) fixedly mounted on the base frame (1); a spur gear (32) is fixedly mounted on the output shaft end of the driving motor (31); a gear ring (33) is fixedly mounted on the middle portion of the drum (2); and the spur gear (32) is meshed with the gear ring (33).

6. A drying device for compound fertilizer production according to claim 5, characterized in that: A plurality of connection blocks (4) spaced apart along the circumferential direction of the gear ring (33) and the roller (2) are fixedly provided between the gear ring (33) and the roller (2).

7. A drying device for compound fertilizer production according to claim 1, characterized in that: The right end of the drum (2) is fixedly provided with a spiral blade (22) evenly distributed along its circumferential direction. A plurality of groups of L-shaped plates (23) spaced apart from each other are fixedly provided inside the drum (2). Each group of L-shaped plates (23) is staggered with respect to the first arc-shaped baffle (5) and each group of L-shaped plates (23) is evenly distributed along the circumferential direction.

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