Hot air drying machine for organic fertilizer production

Abstract

The utility model discloses a hot -blast drying -machine is used in organic fertilizer production relates to organic fertilizer drying technical field. The utility model discloses a screening structure, including base, the outer tube of the slanting state of the upper end of base, the inner tube of the center place of outer tube, the screen cylinder of the center place of inner tube, the rotating ring of the sleeve joint in the outer side of screen cylinder, the ring seat of the symmetrical distribution and the sleeve joint in the outer side of rotating ring of outer tube inner wall location, drying structure, including the hot -blast machine of base upper end, the hot -gas pipe of hot -blast machine output end, the tee pipe of one end communication with hot -gas pipe, the gas guide box of the inside of screen cylinder lower end with hot -gas pipe intercommunication and location, the air hole no.

Description

Technical Field

[0001] This utility model relates to the field of organic fertilizer drying technology, and in particular to a hot air dryer for organic fertilizer production. Background Technology

[0002] Organic fertilizer is made from organic matter such as animal and plant residues, livestock and poultry manure, and agricultural waste through microbial fermentation and decomposition. Its core functions include increasing organic matter, improving soil aggregate structure, slow-release and long-lasting fertilizer effect, and improving crop stress resistance. Organic fertilizer production mainly includes three stages: pretreatment, fermentation, and post-treatment. After crushing and seasoning, fermentation is carried out, followed by screening and granulation. The granulated particles have high moisture content and need to be dried with hot air to reduce the moisture content of the particles.

[0003] Hot air drying suffers from heat source waste, with some hot air failing to fully contact the material before being discharged, and localized high-temperature zones within the drying chamber leading to redundant energy consumption. After granulation, organic fertilizer requires two steps—screening and drying—before packaging. During the drying process, the granulated organic fertilizer may break during flow, and smaller particles can affect product quality. Performing two processing steps on granulated organic fertilizer not only increases transportation and labor costs but also reduces processing efficiency. Therefore, those skilled in the art have provided a hot air dryer for organic fertilizer production to solve the problems mentioned in the background art. Utility Model Content

[0004] Technical solution

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a hot air dryer for organic fertilizer production, comprising, The screening structure includes a base, an inclined outer cylinder located at the upper end of the base, an inner cylinder located at the center of the outer cylinder, a screen cylinder located at the center of the inner cylinder, a rotating ring sleeved on the outside of the screen cylinder, and ring seats located symmetrically distributed on the inner wall of the outer cylinder and sleeved on the outside of the rotating ring. as well as; The drying structure includes a hot air blower located at the upper end of the base, a hot air pipe located at the output end of the hot air blower, a three-way pipe connected to one end of the hot air pipe, an air guide box connected to the hot air pipe and located inside the lower end of the sieve cylinder, air holes equidistantly distributed inside the lower end of the air guide box, baffle rings fixed at both ends of the inner cylinder, and an upper guide ring and a lower guide ring located on the inner wall of the baffle ring and sleeved on the outer side of the sieve cylinder, extending outward.

[0006] Furthermore, an installation groove is provided inside the upper end of the outer cylinder, a motor is installed inside the installation groove, a gear is provided at the output end of the motor located inside the installation groove, and a gear ring that meshes with the gear is sleeved on the outer wall of the inner cylinder. Specifically, the gear rotates inside the mounting slot to achieve rotation inside the upper end of the outer cylinder. When the motor drives the gear to push the meshing gear ring, it drives the inner cylinder, which is supported by rotation, to rotate.

[0007] Furthermore, a cylindrical frame is fitted onto the outer wall of the screen cylinder, and multiple sets of support rods arranged in a ring array are provided between the frame and the inner wall of the inner cylinder. Specifically, the frame supports the outer wall of the screen cylinder, increasing its strength, and the inner cylinder is connected to the screen cylinder by support rods.

[0008] Furthermore, the outer wall of the rotating ring is rotatably mounted with balls that are rolled on the inner wall of the ring seat, and the lower inner wall of the outer cylinder is provided with a discharge port located on one side of the opening of the inner cylinder. Specifically, when the rotating ring rotates inside the ring seat, the rolling balls inside the ring seat reduce the friction and resistance of the rotating ring rotation. The organic fertilizer granules and small particles output through the inner cylinder are discharged through the discharge port.

[0009] Furthermore, the upper end of the outer cylinder is provided with symmetrically distributed exhaust pipes, a cover is provided above the exhaust pipes, and side rods arranged in a ring array are provided between the cover and the exhaust pipes. Specifically, the exhaust pipe outputs part of the hot air after heat exchange and part of the moisture driven away by the hot air. Part of it is output through both ends of the outer cylinder and part of it is output through the mounting groove. The cover protects the upper opening of the exhaust pipe and intercepts foreign objects. The cover is connected to the exhaust pipe through the side rod.

[0010] Furthermore, both ends of the three-way pipe are connected to side pipes located on both sides of the air guide box and inside the sieve cylinder. Each side pipe has two equally spaced air holes at opposite ends. Filter sheets are provided at the openings of both air holes one and air holes two. Specifically, the hot airflow delivered by the hot air blower flows into the side pipe through the three-way pipe. The hot airflow is then distributed through the side pipe and the second air hole to act on the organic fertilizer particles that are rotating on the side of the screen cylinder and falling under gravity. The filter allows the hot airflow to be delivered while intercepting the organic fertilizer. Beneficial effects

[0011] Compared with existing technologies, the advantages of this utility model are: In this invention, granulated organic fertilizer is conveyed into an inclined screen cylinder. The screen cylinder can rotate, which improves the flowability of the organic fertilizer particles and prevents them from coming together. Small particles and organic fertilizer particles that break during hot air drying are discharged through the screen cylinder, while qualified organic fertilizer particles are intercepted and output separately. The organic fertilizer particles are continuously screened without stopping the machine. During the screening process, hot air is conveyed through air guide boxes evenly distributed inside the screen cylinder. The improved flowability of the organic fertilizer granules, along with the air guide boxes, allows for uniform drying of the organic fertilizer granules at different positions on the screen cylinder. Simultaneously, while the hot air after heat exchange is discharged, some of the hot air is intercepted by baffle rings and flows back into the screen cylinder for secondary heat processing, improving the utilization efficiency of the heat source. Screening is performed simultaneously with heat treatment, making it a dual-purpose machine that reduces production costs and improves the processing efficiency of organic fertilizer granules after granulation.

[0012] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main sectional three-dimensional structure of this utility model; Figure 2 This is a front-view three-dimensional structural diagram of the present invention; Figure 3 This is a front-view perspective three-dimensional structural diagram of the outer cylinder of this utility model; Figure 4 This is a side view of the three-dimensional structure of the sieve cylinder of this utility model; Figure 5 This is a bottom-view three-dimensional structural diagram of the air guide box of this utility model; Figure 6 This is a side-view perspective three-dimensional structural diagram of the retaining ring of this utility model.

[0015] The attached diagram lists the components represented by each number as follows: 100. Screening structure; 101. Base; 102. Outer cylinder; 103. Motor; 104. Gear ring; 105. Mounting groove; 106. Gear; 107. Screen cylinder; 108. Frame; 109. Support rod; 200. Drying structure; 201. Hot air blower; 202. Hot air pipe; 203. Air guide box; 204. Air hole one; 205. Side pipe; 206. Air hole two; 207. T-shaped pipe; 208. Baffle ring; 209. Upper guide ring; 210. Lower guide ring; 211. Cover; 212. Side rod; 213. Rotating ring; 214. Ball bearing; 215. Ring seat; 216. Exhaust pipe; 217. Inner cylinder; 218. Discharge port. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example

[0020] Please see Figure 1-6 As shown, this embodiment is a hot air dryer for organic fertilizer production, comprising: The screening structure 100 includes a base 101, an inclined outer cylinder 102 located at the upper end of the base 101, an inner cylinder 217 located at the center of the outer cylinder 102, a screen cylinder 107 located at the center of the inner cylinder 217, a rotating ring 213 sleeved on the outside of the screen cylinder 107, and ring seats 215 symmetrically distributed on the inner wall of the outer cylinder 102 and sleeved on the outside of the rotating ring 213. as well as; The drying structure 200 includes a hot air blower 201 located at the upper end of the base 101, a hot air pipe 202 located at the output end of the hot air blower 201, a three-way pipe 207 connected to one end of the hot air pipe 202, an air guide box 203 connected to the hot air pipe 202 and located inside the lower end of the sieve cylinder 107, air holes 204 equidistantly distributed inside the lower end of the air guide box 203, baffle rings 208 fixed at both ends of the inner cylinder 217, and an upper guide ring 209 and a lower guide ring 210 located on the inner wall of the baffle ring 208 and sleeved on the outer side of the sieve cylinder 107 and extending outward. An installation groove 105 is provided inside the upper end of the outer cylinder 102. A motor 103 is installed inside the installation groove 105. A gear 106 located inside the installation groove 105 is provided at the output end of the motor 103. A gear ring 104 that meshes with the gear 106 is sleeved on the outer wall of the inner cylinder 217. A cylindrical frame 108 is fitted onto the outer wall of the sieve cylinder 107, and multiple sets of support rods 109 arranged in a ring array are provided between the frame 108 and the inner wall of the inner cylinder 217. The outer wall of the rotating ring 213 is rotatably mounted with a ball bearing 214 that is rolled on the inner wall of the ring seat 215, and the lower inner wall of the outer cylinder 102 is provided with a discharge port 218 located on one side of the opening of the inner cylinder 217. The upper end of the outer cylinder 102 is provided with symmetrically distributed exhaust pipes 216, and a cover 211 is provided above the exhaust pipes 216. Side rods 212 arranged in a ring array are provided between the cover 211 and the exhaust pipes 216. Both ends of the three-way pipe 207 are connected to side pipes 205 located on both sides of the air guide box 203 and inside the sieve cylinder 107. Each side pipe 205 has equidistantly distributed air holes 206 at one opposite end. Filters are provided at the openings of air holes 1 204 and air holes 206. The screening structure 100 and the drying structure 200 are used; The granulated organic fertilizer is conveyed into the inclined screen cylinder 107. The motor 103 is turned on, and the gear 106 at the output end of the motor 103 rotates. Since the outer wall of the inner cylinder 217 is fitted with a gear ring 104 that meshes with the gear 106, and the inner cylinder 217 is supported for rotation, the gear 106 pushes the gear ring 104, thereby driving the inner cylinder 217 to rotate. The screen cylinder 107 is connected to the inner cylinder 217 through the frame 108 and the support rod 109, thereby realizing the synchronous rotation of the screen cylinder 107. During the rotation of the screen cylinder 107, the fluidity of the organic fertilizer particles is improved, effectively avoiding particle docking. At this time, small organic fertilizer particles and organic fertilizer particles that are broken during the hot air drying process will be discharged through the pores inside the screen cylinder 107, while qualified organic fertilizer particles are intercepted in the screen cylinder 107 and output separately, realizing continuous non-stop screening of organic fertilizer particles. At the same time, the hot air blower 201 is turned on. The hot air generated by the hot air blower 201 is delivered to the three-way pipe 207 through the hot air pipe 202. Part of the hot air enters the air guide box 203 through the three-way pipe 207, and then acts evenly on the organic fertilizer particles in the screen cylinder 107 through the equally spaced air holes 204 at the lower end of the air guide box 203. The other part of the hot air is diverted through the three-way pipe 207 to the side pipes 205 on both sides, and acts on the organic fertilizer particles that are rotating on the side of the screen cylinder 107 and falling due to gravity through the equally spaced air holes 206 on the side pipes 205. The filter is set At the openings of vent 1 204 and vent 2 206, the hot airflow can be smoothly transported and the organic fertilizer particles can be intercepted. During the heat exchange process, the hot airflow after heat exchange and the moisture driven away by the hot airflow are partially output through the exhaust pipe 216, and partially output through both ends of the outer cylinder 102 and the mounting groove 105. The cover 211 is connected to the exhaust pipe 216 through the side rod 212, which can protect the upper opening of the exhaust pipe 216 and intercept foreign objects. In addition, part of the hot airflow after heat exchange will be intercepted by the baffle ring 208 and flow back into the screen cylinder 107 for secondary heat processing. The integrated rotary screen cylinder 107 performs sieving and hot air drying simultaneously, achieving two functions in one machine. This reduces production costs and improves the processing efficiency of organic fertilizer granules after granulation. The rotation of the screen cylinder 107 enhances the flowability of the organic fertilizer granules. Combined with the air guide box 203 evenly distributed inside the screen cylinder 107, the organic fertilizer granules in different positions can be dried uniformly. Furthermore, the secondary heat processing improves the efficiency of heat source utilization. This effectively solves the problems in traditional organic fertilizer production, such as heat source waste during hot air drying, redundant energy consumption due to localized high temperatures in the drying chamber, and the need for separate sieving and drying after granulation, which increases transportation and labor costs, reduces processing efficiency, and causes granules to break easily during drying, with small granules affecting product quality. The integrated rotary screen cylinder 107 simultaneously completes grading and dehydration, reducing transportation links and improving processing efficiency. At the same time, the forced exhaust gas recirculation of the guide ring and the zoned air supply of the three-way pipe 207 improve the heat energy utilization rate. The rotary screen cylinder 107 replaces the vibrating screen with better granule integrity, simultaneously completing the particle size grading and moisture control of organic fertilizer granules, completely solving the problems of low efficiency, high energy consumption, and granule breakage in traditional step-by-step operations.

[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hot air dryer for organic fertilizer production, characterized in that: include, The screening structure (100) includes a base (101), an inclined outer cylinder (102) located at the upper end of the base (101), an inner cylinder (217) located at the center of the outer cylinder (102), a screen cylinder (107) located at the center of the inner cylinder (217), a rotating ring (213) sleeved on the outside of the screen cylinder (107), and ring seats (215) symmetrically distributed on the inner wall of the outer cylinder (102) and sleeved on the outside of the rotating ring (213). as well as; The drying structure (200) includes a hot air blower (201) located at the upper end of the base (101), a hot air pipe (202) located at the output end of the hot air blower (201), a three-way pipe (207) connected to one end of the hot air pipe (202), an air guide box (203) connected to the hot air pipe (202) and located inside the lower end of the sieve cylinder (107), an air hole (204) equidistantly distributed inside the lower end of the air guide box (203), a retaining ring (208) fixed at both ends of the inner cylinder (217), an upper guide ring (209) and a lower guide ring (210) located on the inner wall of the retaining ring (208) and sleeved on the outer side of the sieve cylinder (107) and extending outward.

2. The hot air dryer for organic fertilizer production according to claim 1, characterized in that: The upper end of the outer cylinder (102) is provided with an installation groove (105), and a motor (103) is provided inside the installation groove (105). The output end of the motor (103) is provided with a gear (106) located inside the installation groove (105). The outer wall of the inner cylinder (217) is fitted with a gear ring (104) that meshes with the gear (106).

3. The hot air dryer for organic fertilizer production according to claim 1, characterized in that: The outer wall of the sieve cylinder (107) is fitted with a cylindrical frame (108), and multiple sets of support rods (109) arranged in a ring array are provided between the frame (108) and the inner wall of the inner cylinder (217).

4. The hot air dryer for organic fertilizer production according to claim 1, characterized in that: The outer wall of the rotating ring (213) is rotatably mounted with a ball bearing (214) that is rolled on the inner wall of the ring seat (215), and the lower inner wall of the outer cylinder (102) is provided with a discharge port (218) located on one side of the opening of the inner cylinder (217).

5. A hot air dryer for organic fertilizer production according to claim 1, characterized in that: The outer cylinder (102) is provided with symmetrically distributed exhaust pipes (216) at the upper end, and a cover (211) is provided above the exhaust pipes (216). Side rods (212) arranged in a ring array are provided between the cover (211) and the exhaust pipes (216).

6. The hot air dryer for organic fertilizer production according to claim 1, characterized in that: Both ends of the three-way pipe (207) are connected to side pipes (205) located on both sides of the air guide box (203) and inside the sieve cylinder (107). Each side pipe (205) has two equally spaced air holes (206) at opposite ends. Filter plates are provided at the openings of the first air hole (204) and the second air hole (206).

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