A circulating drying device for producing organic and inorganic compound fertilizers
By designing a circulation drying device, the combination of multiple drying layers and pushing parts, combined with the spiral hot air channel, the problem of low drying efficiency of compound fertilizer is solved, and efficient and uniform drying effect is achieved.
Patent Information
- Application Number
- CN202421263854.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-04
AI Technical Summary
During the drying process, the compound fertilizer has low moisture drying efficiency due to its static state, which affects the overall drying efficiency.
A circulating drying device is designed, including multiple horizontally arranged drying layers and pushing parts. The pushing parts drive the pushing block to push the compound fertilizer on the drying layer through the rotating shaft, realize the circulating drying of the drying layer for multiple drying layers, and increase the residence time of the hot air through the spiral hot air channel.
Through the design of circulating drying and spiral hot air channels, the drying efficiency of compound fertilizer is significantly improved, ensuring uniform drying of compound fertilizer, avoiding deformation of fertilizer and scratches of drying layer.
Smart Images
Figure CN222718555U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fertilizer production, in particular to a circulating drying device for producing organic-inorganic compound fertilizers. Background Art
[0002] Compound fertilizer refers to a fertilizer containing two or more nutrients, usually prepared by mixing organic fertilizers and inorganic fertilizers. Compound fertilizers have the advantages of high nutrient content, few by-components and good physical properties. They play a very important role in balanced fertilization, improving fertilizer utilization and promoting high and stable yields of crops.
[0003] Compound fertilizers generally have a high moisture content after granulation, so they need to be dried; compound fertilizers are generally dried using a tunnel drying system, which is to send the compound fertilizers into a drying box via a conveyor belt (hot air is introduced into the box or a heating component is set), and then sent out by a conveyor belt after passing through the drying box. However, since the compound fertilizers remain relatively static when passing through the drying box, the moisture drying efficiency of the compound fertilizers inside is low, which affects the drying efficiency of the compound fertilizers. Utility Model Content
[0004] The utility model aims to provide a circulating drying device for producing organic-inorganic compound fertilizers, which has the effect of improving the drying efficiency of the compound fertilizers.
[0005] The above-mentioned technical purpose of the utility model is achieved through the following technical scheme: it includes a cylindrical body, a feed pipe vertically arranged on the top of the body and a discharge pipe arranged at the bottom of the body, a plurality of cylindrical drying layers with hollow interiors are arranged horizontally in the body, an air intake main pipe and an air outlet main pipe are vertically arranged in the body, a plurality of air intake branch pipes corresponding one-to-one to the drying layers are connected to the air intake main pipe, a plurality of air outlet branch pipes corresponding one-to-one to the drying layers are connected to the air outlet main pipe, a rotating shaft is arranged on the body for rotation in the vertical direction, a driving motor for driving the rotating shaft is arranged on the body, the rotating shaft moves through the drying layer, a plurality of pushing pieces corresponding one-to-one to the drying layers are arranged on the rotating shaft, a feed discharge port is opened on the drying layer, and adjacent feed discharge ports are staggered in sequence.
[0006] The utility model is further configured as follows: a spiral hot air channel is provided inside the drying layer, the air inlet branch pipe is communicated with the outside of the hot air channel, and the air outlet branch pipe is communicated with the inside of the hot air channel.
[0007] The utility model is further configured as follows: the pushing member comprises a plurality of pushing rods arranged on the rotating shaft along the horizontal direction and a pushing block arranged at the bottom of the pushing rods, and the bottom of the pushing block can be movably fitted to the top of the drying layer.
[0008] The utility model is further configured as follows: the pushing block is made of elastic material.
[0009] The utility model is further configured as follows: the pushing block is sawtooth-shaped.
[0010] The utility model is further configured as follows: a funnel-shaped material guide pipe is provided on the discharge pipe, the top end of the material guide pipe is fixedly connected to the drying layer located at the bottom of the machine body, and the discharge port located at the bottom of the machine body is located directly above the material guide pipe.
[0011] The utility model is further configured as follows: a funnel-shaped feeding pipe is provided on the feeding pipe.
[0012] The utility model is further configured as follows: a funnel-shaped material baffle is arranged on the outer wall of the drying layer.
[0013] The utility model is further configured as follows: the outer wall of the body is made of heat insulating material.
[0014] The utility model is further configured as follows: the drying layer is made of heat-conducting material.
[0015] The beneficial effects of the utility model are:
[0016] 1. By setting the drying layer, the pusher and the discharge port, etc., when the compound fertilizer needs to be dried, firstly, the hot air is passed into the drying layer through the air intake main pipe and the air intake branch pipe, and the compound fertilizer enters the machine body from the feeding pipe and falls on the uppermost drying layer. The driving motor is turned on, and the rotating shaft drives the pusher to rotate. During the rotation of the pusher, the compound fertilizer on the drying layer is pushed to move on the drying layer until the compound fertilizer falls from the discharge port on the drying layer to the drying layer of the next layer (by matching the rotation direction of the pusher with the position of the discharge port, the compound fertilizer can move nearly one circle on the drying layer before falling from the discharge port) , and then the pushing piece continues to push the compound fertilizer to move and dry on the drying layer, and the cycle continues. The compound fertilizer is dried on multiple drying layers in turn until the compound fertilizer is transported out from the discharge pipe at the bottom of the machine body; by setting multiple drying layers and staggered arrangement of the discharge ports on the drying layers, the pushing piece can push the compound fertilizer to move on each drying layer for nearly a circle before entering the next drying layer, thereby ensuring the drying effect of the compound fertilizer. At the same time, during the entire compound fertilizer drying process, the pushing piece has been pushing the compound fertilizer to move, so that the inside and outside of the compound fertilizer can be dried evenly and synchronously, which greatly improves the drying efficiency.
[0017] 2. By setting up a spiral hot air channel, the hot air enters the outside of the drying layer from the air inlet duct, runs around the spiral hot air channel and then comes out from the middle air outlet duct, thereby greatly increasing the residence time of the hot air in the drying layer, thereby greatly improving the utilization efficiency of the heat in the hot air and also improving the drying efficiency of compound fertilizers.
[0018] 3. By setting a pushing rod and a pushing block, and the pushing block is made of a serrated elastic material, when the pushing block pushes the compound fertilizer, the pushing block is in flexible contact with the compound fertilizer and the drying layer, thereby avoiding the compound fertilizer from being squeezed and deformed in the process of pushing the compound fertilizer, and also avoiding scratching the drying layer. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.
[0020] Figure 1 This is a structural schematic diagram of an embodiment of a circulating drying device for producing organic-inorganic compound fertilizers of the utility model;
[0021] Figure 2 This is a partial structural schematic diagram of an embodiment of a circulating drying device for producing organic-inorganic compound fertilizers of the utility model;
[0022] Figure 3 yes Figure 2 A is an enlarged schematic diagram;
[0023] Figure 4 The utility model is a partial cross-sectional structural schematic diagram of an embodiment of a circulating drying device for producing organic-inorganic compound fertilizers.
[0024] In the figure, 1. machine body; 2. feed pipe; 3. discharge pipe; 4. drying layer; 5. main air inlet pipe; 6. main air outlet pipe; 7. branch air inlet pipe; 8. branch air outlet pipe; 9. rotating shaft; 10. driving motor; 11. pushing piece; 11a. pushing rod; 11b. pushing block; 12. discharge port; 13. hot air channel; 14. guide pipe; 15. feeding pipe; 16. baffle plate. DETAILED DESCRIPTION
[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] The utility model provides a circulating drying device for producing organic and inorganic compound fertilizers. Figures 1 to 4 As shown, it includes a cylindrical body 1, a feed pipe 2 vertically arranged on the top of the body 1 and a discharge pipe 3 arranged at the bottom of the body 1, a plurality of cylindrical drying layers 4 with cavities inside are arranged horizontally in the body 1, an air intake main pipe 5 and an air outlet main pipe 6 are vertically arranged in the body 1, a plurality of air intake branch pipes 7 corresponding to the drying layers 4 are connected to the air intake main pipe 5, a plurality of air outlet branch pipes 8 corresponding to the drying layers 4 are connected to the air outlet main pipe 6, a rotating shaft 9 is arranged on the body 1 for rotation along the vertical direction, a driving motor 10 for driving the rotating shaft 9 is arranged on the body 1, the rotating shaft 9 moves through the drying layer 4, a plurality of pushing pieces 11 corresponding to the drying layers 4 are arranged on the rotating shaft 9, a feed discharge port 12 is opened on the drying layer 4, and adjacent feed discharge ports 12 are arranged alternately in sequence.
[0027] Furthermore, a spiral hot air channel 13 is provided inside the drying layer 4 , the air inlet branch pipe 7 is communicated with the outer side of the hot air channel 13 , and the air outlet branch pipe 8 is communicated with the inner side of the hot air channel 13 .
[0028] Furthermore, the pushing member 11 includes a plurality of pushing rods 11 a arranged on the rotating shaft 9 along the horizontal direction and a pushing block 11 b arranged at the bottom of the pushing rod 11 a , and the bottom of the pushing block 11 b can be movably attached to the top of the drying layer 4 .
[0029] Furthermore, the pushing block 11b is made of elastic material.
[0030] Furthermore, the pushing block 11b is sawtooth-shaped.
[0031] Furthermore, a funnel-shaped material guide pipe 14 is provided on the discharge pipe 3 , the top end of the material guide pipe 14 is fixedly connected to the drying layer 4 located at the bottom of the machine body 1 , and the discharge port 12 located at the bottom of the machine body 1 is located directly above the material guide pipe 14 .
[0032] Furthermore, a funnel-shaped feeding pipe 15 is provided on the feeding pipe 2 .
[0033] Furthermore, a funnel-shaped material baffle plate 16 is provided on the outer wall of the drying layer 4 .
[0034] Furthermore, the outer wall of the body 1 is made of heat insulating material.
[0035] Furthermore, the drying layer 4 is made of heat-conducting material.
[0036] When it is necessary to dry the compound fertilizer, firstly, hot air is passed into the drying layer 4 through the air intake main pipe 5 and the air intake branch pipe 7, and the compound fertilizer enters the machine body 1 from the feeding pipe 2 and falls on the uppermost drying layer 4, and then the driving motor 10 is turned on, and the rotating shaft 9 drives the pushing block 11b to rotate. During the rotation of the pushing block 11b, the compound fertilizer on the drying layer 4 is pushed to move on the drying layer 4 until the compound fertilizer falls from the discharge port 12 on the drying layer 4 to the drying layer 4 of the next layer (by matching the rotation direction of the pushing block 11b with the position of the discharge port 12, the compound fertilizer can move on the drying layer 4 for nearly one circle before falling from the discharge port 12), and then continue The pushing block 11b continues to push the compound fertilizer to move and dry on the drying layer 4, and the cycle continues. The compound fertilizer is dried on multiple drying layers 4 in turn until the compound fertilizer is transported out from the discharge pipe 3 at the bottom of the machine body 1; by setting multiple drying layers 4, and the discharge ports 12 on the drying layers 4 are staggered, the pushing block 11b can push the compound fertilizer to move on each drying layer 4 for nearly a circle before entering the next drying layer 4, thereby ensuring the drying effect of the compound fertilizer. At the same time, during the entire compound fertilizer drying process, the pushing piece 11 has been pushing the compound fertilizer to move, so that the inside and outside of the compound fertilizer can be dried evenly and synchronously, which greatly improves the drying efficiency.
[0037] By providing a spiral hot air channel 13, the hot air enters the outer side of the drying layer 4 from the air inlet duct, runs around the spiral hot air channel 13 and then comes out from the middle air outlet duct, thereby greatly increasing the residence time of the hot air in the drying layer 4, thereby greatly improving the utilization efficiency of the heat in the hot air, and also improving the drying efficiency of the compound fertilizer.
[0038] By providing a pushing rod 11a and a pushing block 11b, and the pushing block 11b is made of a serrated elastic material, so that when the pushing block 11b pushes the compound fertilizer, there is flexible contact between the pushing block 11b and the compound fertilizer and the drying layer 4, thereby avoiding the compound fertilizer from being squeezed and deformed in the process of pushing the compound fertilizer, and also avoiding scratching the drying layer 4.
[0039] The funnel-shaped baffle plate 16 is provided to prevent the compound fertilizer from falling from the outside of the drying layer 4 when the pushing block 11 b pushes the compound fertilizer, thereby affecting the drying process of the compound fertilizer.
[0040] By providing the funnel-shaped guide pipe 14, the compound fertilizer dried in the bottom drying layer 4 of the machine body 1 directly falls into the guide pipe 14 from the discharge port 12, and then enters the discharge pipe 3 through the guide pipe 14 for discharge, thereby improving the discharge speed of the compound fertilizer.
[0041] By making the drying layer 4 made of a heat-conducting material, the heat-conducting efficiency of the drying layer 4 is improved, thereby improving the drying efficiency of the compound fertilizer.
[0042] By making the machine body 1 of heat-insulating material, the heat dissipation from the machine body 1 to the outside is reduced, thereby improving the heat utilization efficiency.
[0043] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0044] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.
Claims
1. A circulating drying device for producing organic-inorganic compound fertilizers, characterized in that: The invention comprises a cylindrical body (1), a feed pipe (2) vertically arranged at the top of the body (1), and a discharge pipe (3) arranged at the bottom of the body (1); a plurality of cylindrical drying layers (4) with hollow interiors are arranged horizontally in the body (1); an air intake main pipe (5) and an air outlet main pipe (6) are vertically arranged in the body (1); a plurality of air intake branch pipes (7) corresponding to the drying layers (4) are arranged on the air intake main pipe (5); a plurality of air outlet branch pipes (7) corresponding to the drying layers (4) are arranged on the air outlet main pipe (6); A plurality of air outlet pipes (8) corresponding one to one with the drying layers (4) are provided on the machine body (1), a rotating shaft (9) is arranged on the machine body (1) for rotating in a vertical direction, a driving motor (10) is arranged on the machine body (1) for driving the rotating shaft (9), the rotating shaft (9) moves through the drying layer (4), a plurality of pushing members (11) corresponding one to one with the drying layers (4) are arranged on the rotating shaft (9), a material discharge port (12) is opened on the drying layer (4), and adjacent material discharge ports (12) are arranged in sequence in an alternating manner.
2. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 1, characterized in that: A spiral hot air channel (13) is provided inside the drying layer (4); the air inlet branch pipe (7) is connected to the outside of the hot air channel (13); and the air outlet branch pipe (8) is connected to the inside of the hot air channel (13).
3. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 2, characterized in that: The pushing member (11) comprises a plurality of pushing rods (11a) arranged on the rotating shaft (9) in the horizontal direction and a pushing block (11b) arranged at the bottom of the pushing rods (11a), and the bottom of the pushing block (11b) can be movably fitted to the top of the drying layer (4).
4. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 3, characterized in that: The pushing block (11b) is made of elastic material.
5. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 4, characterized in that: The pushing block (11b) is sawtooth-shaped.
6. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 1, characterized in that: The discharge pipe (3) is provided with a funnel-shaped material guide pipe (14), the top end of which is fixedly connected to the drying layer (4) located at the bottom of the machine body (1), and the discharge port (12) located at the bottom of the machine body (1) is located directly above the material guide pipe (14).
7. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 1, characterized in that: The feed pipe (2) is provided with a funnel-shaped feeding pipe (15).
8. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 1, characterized in that: A funnel-shaped material blocking plate (16) is provided on the outer wall of the drying layer (4).
9. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 8, characterized in that: The outer wall of the machine body (1) is made of heat-insulating material.
10. The circulating drying device for producing organic-inorganic compound fertilizer according to claim 1, characterized in that: The drying layer (4) is made of heat-conducting material.