Efficient fertilizer drying device for fertilizer production

Abstract

The utility model relates to the technical field of fertilizer production and processing, and discloses an efficient fertilizer drying device for fertilizer production, which comprises a drying box, an insulation board is fixedly mounted on the inner wall of the drying box, and a heating air inlet structure for heating external air is arranged on the outer wall of one side of the drying box. A built-in drying structure communicating with the heating air inlet structure is arranged in a cavity of the drying box. Through the arrangement of the heating air inlet structure, the built-in drying structure, the first filter screen and the second filter screen, the effect of secondary drying and dehumidification on fertilizer particles is achieved, hot air is exhausted through the exhaust holes in the heat exhaust branch pipes, direct air blowing on the fertilizer particles can be achieved, and the drying efficiency is improved. Therefore, the efficiency of drying and dehumidifying the fertilizer particles is improved. By arranging the buffer spring, fertilizer particles on the first filter screen are driven to shake, so that the up-down linkage effect is achieved, and the drying and dehumidifying efficiency of the fertilizer particles is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fertilizer production and processing, and specifically relates to an efficient fertilizer drying device for fertilizer production. Background Art

[0002] Generally, the fertilizer raw materials are uneven in thickness and relatively moist, and are prone to caking. Therefore, during the production of fertilizers, it is necessary to dry the fertilizers.

[0003] The prior art discloses a fertilizer drying box (application number 202322304206.0), which includes a drying box body with an opening on the front. A door panel for closing the opening is hinged to the front of the drying box body. An electric heating grid is installed at the top of the inner wall of the drying box body, and a fan capable of blowing air downward is arranged above the electric heating grid at the top of the drying box body. A placement table is clamped and slidably connected to the bottom of the inner wall of the drying box body along its length direction.

[0004] The above-mentioned prior art mainly drives the collection box through a swinging mechanism to perform a shaking type of drying on the fertilizers inside. During the process of shaking the fertilizers left and right, compared with the drying of the traditional technology, the drying efficiency of the fertilizers can be improved, because the contact efficiency between the fertilizers and the hot air can be improved to a certain extent. However, the fertilizers are stacked in the collection box. Even if they are constantly shaken left and right, there is still an easy problem of fertilizer accumulation. The fertilizers on the upper layer press on the fertilizers on the lower layer. Even if they are constantly shaken, there may still be a problem that some of the fertilizers on the lower layer cannot fully contact the hot air. If the shaking speed of the collection box is increased, it may cause the fertilizers to spill out. If the shaking speed is slow, the upper and lower layer fertilizers cannot fully contact the hot air.

[0005] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present utility model is:

[0007] A highly efficient fertilizer drying device for fertilizer production, comprising a drying box. A heat preservation board is fixedly installed on the inner wall of the drying box. A heating and intake structure for heating external air is arranged on one outer wall of the drying box, and an internal drying structure communicated with the heating and intake structure is arranged in the cavity of the drying box. A first filter screen and a second filter screen are arranged in the cavity of the drying box. The first filter screen is located above the second filter screen. The first filter screen is circular, and the second filter screen is in a state of protruding downward in an arc shape. The first filter screen and the second filter screen are respectively movably installed on the inner wall of the heat preservation board, and the heat exhaust branch pipe movably penetrates through the second filter screen and the first filter screen. A discharge pipe is fixedly installed at the arc-shaped bottom of the second filter screen, and an electromagnetic valve is installed in the discharge pipe. A resilient shaking driving structure for driving the first filter screen and the second filter screen is arranged on the drying box. While the fertilizer falls on the first filter screen and the second filter screen and is shaken, it is also dried.

[0008] As a preferred embodiment of the present invention, the heating and intake structure includes a fixing plate fixedly arranged on one outer wall of the drying box. A heating box is fixedly installed on the top of the fixing plate, a heating rod is fixedly installed in the heating box, and an air pump is also fixedly installed on the top wall surface of the fixing plate. The output end of the air pump is fixedly connected to the heating box.

[0009] As a preferred embodiment of the present invention, the internal drying structure includes a drying tray. The drying tray is a hollow ring body, the drying tray is fixedly arranged on the inner wall of the heat preservation board, one end of the drying tray is fixedly connected to a conduit communicating with the heating box, and uniformly distributed heat exhaust branch pipes are fixedly installed on the top of the drying tray. The heat exhaust branch pipes are hollow cylinders, and uniformly distributed exhaust holes are opened on the outer wall of the heat exhaust branch pipes. Protective filter screens are fixedly installed on the inner walls of the exhaust holes.

[0010] As a preferred embodiment of the present invention, the inner ring diameter height of the drying tray is smaller than the outer ring diameter height, and the top wall surface of the drying tray is in an inclined state.

[0011] As a preferred embodiment of the present invention, uniformly distributed slider A is fixedly installed on the outer circular wall of the first filter screen, a sliding groove engaged with the corresponding slider A is opened on the inner wall of the heat preservation board, the slider A is arc-shaped, uniformly distributed slider B is fixedly installed on the outer circular wall of the second filter screen, the position of the slider B corresponds to the position of the slider A, the slider B is arc-shaped, and the slider B is engaged in the corresponding sliding groove.

[0012] As a preferred embodiment of the present invention, a buffer spring is fixedly installed between the bottom of the slider A and the top of the slider B. A tension spring is fixedly installed at the bottom of the cavity of the sliding groove, and the top end of the tension spring is fixedly connected to the bottom of the slider B.

[0013] As a preferred embodiment of the present utility model, the driving structure includes a servo motor fixedly arranged on an outer wall of one side of the drying box. The output end of the servo motor movably penetrates through the walls of the drying box and the heat preservation board through a bearing, and the output end of the servo motor is located inside the drying box cavity. The output end of the servo motor is fixedly connected with a cam plate, and the cam plate is located below the second filter screen.

[0014] As a preferred embodiment of the present utility model, a butting plate is fixedly installed on the bottom wall surface of one side of the second filter screen. The butting plate and the cam plate are vertically corresponding in position, and when the cam plate rotates, it intermittently jacks up the butting plate.

[0015] The present utility model has the following beneficial effects compared with the prior art:

[0016] 1. By setting the heating air intake structure, the built-in drying structure, the first filter screen and the second filter screen, the present utility model realizes the function of secondary drying and dehumidification of fertilizer particles. The hot air is discharged through the exhaust holes on the exhaust heat branch pipe, so that the fertilizer particles can be directly blown, thereby improving the drying and dehumidification efficiency of the present utility model for fertilizer particles.

[0017] 2. By setting the driving structure, when the servo motor works to drive the cam plate to rotate, the rotation of the cam plate intermittently jacks up the butting plate, so that the second filter screen drives the fertilizer particles to move upward in a jittery manner, and then moves downward under the action of the gravity of the second filter screen and the fertilizer particles, thus realizing the intermittent jitter of the fertilizer particles on the second filter screen. When the second filter screen drives the fertilizer particles to jitter, it is beneficial for the water vapor generated by the fertilizer particles to jitter and disperse, thereby improving the drying and dehumidification efficiency of the fertilizer particles of the present utility model.

[0018] 3. By setting the buffer spring, when the second filter screen is driven to move upward, the upward moving slider B drives the upper first filter screen to move upward through the buffer spring, thus realizing the jitter of the fertilizer particles on the first filter screen, so as to achieve the effect of upper and lower linkage, and further improving the drying and dehumidification efficiency of the fertilizer particles of the present utility model.

[0019] 4. In this solution, the fertilizer passes through the first filter screen and the second filter screen in sequence. When the fertilizer falls on the first filter screen for jitter screening, the exhaust heat branch pipe enables the fertilizer to pass through from bottom to top, and the hot air blown out through the exhaust holes can directly blow into the interior of the fertilizer. Along with the up and down jitter of the fertilizer, uniform drying treatment of the fertilizer can be realized. At the same time, when it falls on the second filter screen, it also undergoes the same drying and jitter treatment, which can effectively avoid the problem of uneven fertilizer drying caused by fertilizer accumulation.

[0020] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Brief Description of the Drawings

[0021] In the drawings:

[0022] Figure 1 is a perspective view of the present utility model;

[0023] Figure 2 is a cross-sectional view of the present utility model;

[0024] Figure 3 is the present utility model Figure 2 magnified view at A in;

[0025] Figure 4 is the present utility model Figure 2 magnified view at B in;

[0026] Figure 5 is a perspective view of the drying tray of the present utility model.

[0027] In the figure: 1, drying oven; 11, heat insulation board; 12, fixing plate; 13, heating box; 14, heating rod; 15, air pump; 16, conduit; 17, drying tray; 18, exhaust heat branch pipe; 19, first filter screen; 2, slider A; 21, chute; 22, buffer spring; 23, protection filter screen; 24, exhaust hole; 25, second filter screen; 26, slider B; 27, tension spring; 3, servo motor; 31, cam plate; 33, abutting plate; 34, discharge pipe. Detailed Embodiment

[0028] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. The following embodiments are used to illustrate the present utility model.

[0029] A highly efficient fertilizer drying device for fertilizer production, as Figure 1 , Figure 2As shown in the figure, it includes a drying oven 1. A heat insulation board 11 is fixedly installed on the inner wall of the drying oven 1. A heating air intake structure for heating the outside air is arranged on the outer wall of one side of the drying oven 1. An internal drying structure communicated with the heating air intake structure is arranged in the cavity of the drying oven 1. A first filter screen 19 and a second filter screen 25 are arranged in the cavity of the drying oven 1. The first filter screen 19 is located above the second filter screen 25. The first filter screen 19 is circular, and the second filter screen 25 is in a state of being arched and protruding downward. The first filter screen 19 and the second filter screen 25 are respectively movably installed on the inner wall of the heat insulation board 11. The exhaust heat branch pipe 18 movably penetrates through the second filter screen 25 and the first filter screen 19. A discharge pipe 34 is fixedly installed at the arched bottom of the second filter screen 25, and an electromagnetic valve is installed in the discharge pipe 34. A driving structure for elastically vibrating the first filter screen 19 and the second filter screen 25 is arranged on the drying oven 1. While the fertilizer falls on the first filter screen 19 and the second filter screen 25 and is vibrated, it is also dried.

[0030] As Figure 1 , Figure 2 , Figure 5 As shown in the figure, the heating air intake structure includes a fixing plate 12 fixedly arranged on the outer wall of one side of the drying oven 1. A heating box 13 is fixedly installed on the top of the fixing plate 12. A heating rod 14 is fixedly installed in the heating box 13. An air pump 15 is also fixedly installed on the top wall surface of the fixing plate 12. The output end of the air pump 15 is fixedly connected to the heating box 13. The internal drying structure includes a drying tray 17. The drying tray 17 is a hollow ring body. The drying tray 17 is fixedly arranged on the inner wall of the heat insulation board 11. One end of the drying tray 17 is fixedly connected to a conduit 16 communicating with the heating box 13. Uniformly distributed exhaust heat branch pipes 18 are fixedly installed on the top of the drying tray 17. The exhaust heat branch pipes 18 are hollow cylinders. Uniformly distributed exhaust holes 24 are opened on the outer wall of the exhaust heat branch pipes 18. Protective filter screens 23 are fixedly installed on the inner walls of the exhaust holes 24. The inner ring diameter height of the drying tray 17 is smaller than the outer ring diameter height. The top wall surface of the drying tray 17 is in an inclined state. The dried fertilizer particles can naturally fall from the inclined top of the drying tray 17 and finally fall through the hollow center of the drying tray 17, which will not affect the feeding and discharging of the fertilizer particles.

[0031] As Figure 3 , Figure 4As shown, evenly distributed sliding blocks A2 are fixedly installed on the annular outer wall of the first filter screen 19. A sliding groove 21 that engages with the corresponding sliding block A2 is provided on the inner wall of the heat preservation plate 11. The sliding block A2 is arc-shaped. Evenly distributed sliding blocks B26 are fixedly installed on the annular outer wall of the second filter screen 25. The position of the sliding block B26 corresponds to the position of the sliding block A2. The sliding block B26 is arc-shaped. The sliding block B26 is engaged in the corresponding sliding groove 21. A buffer spring 22 is fixedly installed between the bottom of the sliding block A2 and the top of the sliding block B26. A tension spring 27 is fixedly installed at the bottom of the cavity of the sliding groove 21 where the buffer spring 22 is located. The top end of the tension spring 27 is fixedly connected to the bottom of the sliding block B26.

[0032] As Figure 4 , Figure 2 shown, the drive structure includes a servo motor 3 fixedly installed on the outer wall of one side of the drying box 1. The output end of the servo motor 3 passes through the walls of the drying box 1 and the heat preservation plate 11 through a bearing, and the output end of the servo motor 3 is located inside the drying box 1. The output end of the servo motor 3 is fixedly connected to a cam plate 31. The cam plate 31 is located below the second filter screen 25. A butting plate 33 is fixedly installed on the bottom wall surface of one side of the second filter screen 25. The position of the butting plate 33 corresponds to that of the cam plate 31 up and down. When the cam plate 31 rotates, it intermittently jacks up the butting plate 33.

[0033] During use, the fertilizer particles to be dehumidified and dried are poured into the cavity of the drying box 1 through the feeding funnel at the top of the drying box 1. The working switches of the heating rod 14 and the air pump 15 are turned on. The heating rod 14 generates heat when it works, and the air pump 15 injects the outside air into the heating box 13 when it works, so that the air is heated. The heated air enters the drying tray 17 through the conduit 16 and is finally discharged through the heat exhaust branch pipe 18. Exhaust holes 24 are provided on the outer wall of the heat exhaust branch pipe 18, so that the hot air can be discharged into the cavity of the drying box 1 through the exhaust holes 24. The fertilizer particles are first dried and dehumidified on the first filter screen 19 and then fall onto the arc-shaped second filter screen 25 for drying and dehumidification. By setting the heating and air intake structure, the built-in drying structure, the first filter screen 19 and the second filter screen 25, the utility model realizes the function of secondary drying and dehumidification of the fertilizer particles. The hot air is discharged through the exhaust holes 24 on the heat exhaust branch pipe 18, so that the fertilizer particles can be directly blown, thereby improving the efficiency of drying and dehumidifying the fertilizer particles by the utility model.

[0034] The utility model realizes intermittent jittering of fertilizer particles on the second filter screen 25 by setting a driving structure. When the servo motor 3 operates to drive the cam plate 31 to rotate, the rotation of the cam plate 31 causes intermittent jacking of the abutting plate 33, so that the second filter screen 25 drives the fertilizer particles to move upward in a jittering motion. Then, under the action of the gravity of the second filter screen 25 and the fertilizer particles, they move downward, thus realizing intermittent jittering of the fertilizer particles on the second filter screen 25. When the second filter screen 25 drives the fertilizer particles to jitter, it is beneficial to the steam generated by the fertilizer particles to jitter and disperse, thereby improving the drying and dehumidification efficiency of the fertilizer particles of the utility model. The utility model sets a buffer spring 22. When the second filter screen 25 is driven to move upward, the upward moving slider B26 drives the upper first filter screen 19 to move upward through the buffer spring 22, thus realizing jittering of the fertilizer particles on the first filter screen 19, and achieving the effect of upper and lower linkage, which further improves the drying and dehumidification efficiency of the fertilizer particles of the utility model.

[0035] It can be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application belong to the scope protected by the present utility model.

Claims

1. A high-efficiency fertilizer drying device for fertilizer production, comprising a drying box (1), characterized in that: The inner wall of the drying box (1) is fixedly mounted with a heat preservation plate (11); a heating air intake structure for heating the outside air is arranged on the outer wall of one side of the drying box (1); a built-in drying structure which is interconnected with the heating air intake structure is arranged in the cavity of the drying box (1); a first filter screen (19) and a second filter screen (25) are arranged in the cavity of the drying box (1); the first filter screen (19) is located on the upper side of the second filter screen (25); the first filter screen (19) is circular; the second filter screen (25) is in an arc-shaped state of protruding downward; the first filter screen (19) is arranged ... arranged on the upper side of The first filter screen (19) and the second filter screen (25) are movably mounted on the inner wall of the heat preservation plate (11), and the heat exhaust branch pipe (18) movably penetrates the second filter screen (25) and the first filter screen (19); a discharge pipe (34) is fixedly mounted on the arc bottom of the second filter screen (25), and an electromagnetic valve is installed in the discharge pipe (34); the drying box (1) is provided with a driving structure for driving the first filter screen (19) and the second filter screen (25) to elastically shake, and the fertilizer falling on the first filter screen (19) and the second filter screen (25) is shaken and dried at the same time.

2. The high-efficiency fertilizer drying device for fertilizer production according to claim 1, characterized in that: The heating air intake structure comprises a fixing plate (12) fixedly mounted on an outer wall of one side of the drying box (1); a heating box (13) is fixedly mounted on the top of the fixing plate (12); a heating rod (14) is fixedly mounted inside the heating box (13); an air pump (15) is also fixedly mounted on the top wall of the fixing plate (12); and an output end of the air pump (15) is fixedly connected to the heating box (13).

3. The high-efficiency fertilizer drying device for fertilizer production according to claim 2, characterized in that: The built-in drying structure comprises a drying plate (17), which is a hollow annular body and is fixedly mounted on the inner wall of the heat-insulating plate (11). One end of the drying plate (17) is fixedly connected to a conduit (16) for interconnecting the heating boxes (13). The top of the drying plate (17) is fixedly mounted with evenly distributed heat exhaust branch pipes (18), which are hollow cylinders and have evenly distributed exhaust holes (24) on their outer walls; and the inner walls of the exhaust holes (24) are fixedly mounted with protective filters (23).

4. The high-efficiency fertilizer drying device for fertilizer production according to claim 3, characterized in that: The height of the annular inner diameter of the drying plate (17) is smaller than the height of the annular outer diameter, and the top wall surface of the drying plate (17) is in an inclined state.

5. The high-efficiency fertilizer drying device for fertilizer production according to claim 1, characterized in that: The first filter screen (19) is fixedly provided with evenly distributed sliders A (2) on the annular outer wall thereof, the heat preservation plate (11) is provided with a slide groove (21) which engages with the corresponding slider A (2), the slider A (2) is arc-shaped, and the second filter screen (25) is fixedly provided with evenly distributed sliders B (26) on the annular outer wall thereof, the position of the slider B (26) corresponds to the position of the slider A (2), the slider B (26) is arc-shaped, and the slider B (26) engages with the corresponding slide groove (21).

6. The high-efficiency fertilizer drying device for fertilizer production according to claim 5, characterized in that: A buffer spring (22) is fixedly installed between the bottom of the slider A (2) and the top of the slider B (26); a tension spring (27) is fixedly installed at the bottom of the buffer spring (22) located in the cavity of the slide groove (21); and the top of the tension spring (27) is fixedly connected to the bottom of the slider B (26).

7. The high-efficiency fertilizer drying device for fertilizer production according to claim 1, characterized in that: The driving structure comprises a servo motor (3) fixedly mounted on an outer wall of one side of the drying box (1); the output end of the servo motor (3) movably penetrates the wall surface of the drying box (1) and the heat preservation plate (11) through a bearing and the output end of the servo motor (3) is located in the cavity of the drying box (1); the output end of the servo motor (3) is fixedly connected to a cam plate (31), and the cam plate (31) is located below the second filter screen (25).

8. The high-efficiency fertilizer drying device for fertilizer production according to claim 7, characterized in that: A contact plate (33) is fixedly mounted on the bottom wall of one side of the second filter screen (25). The contact plate (33) corresponds to the cam plate (31) in position up and down. When the cam plate (31) rotates, the contact plate (33) is intermittently lifted.

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