Dryer for producing bio-organic fertilizer

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Through the improved dryer structure, using technologies such as bent pipes and three-way switching valves, the problem of heat loss of biological organic fertilizers is solved, and an efficient and energy-saving drying effect is achieved.

CN223064290UActive Publication Date: 2025-07-04TIANHE (LIAONING) BIOTECHNOLOGY CO LTD

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Patent Information

Application Number: CN202422020169.5
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-20
Publication Date: 2025-07-04
Estimated Expiration: 2034-08-20

AI Technical Summary

Technical Problem

In the prior art, the heat loss is severe during the drying process of biological organic fertilizer, resulting in poor drying effect and waste of energy.

Method used

A dryer including kiln head, kiln body, kiln tail, cylinder shell, screw conveyor and hopper are designed. The 3-way switching valve and pipe bending structure realize the flexible utilization of heat, and combine the insulation layer and sealing structure to improve the heat utilization rate.

Benefits of technology

It realizes efficient drying of biological organic fertilizers, saves energy, improves drying efficiency, and adapts to the drying process of different temperature needs.

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Abstract

The utility model relates to the technical field of drying, and discloses a dryer for bio-organic fertilizer production, which comprises a kiln head, a kiln body and a kiln tail, two ends of the kiln body are respectively rotatably mounted in the kiln head and the kiln tail, the kiln body is sleeved with a cylindrical shell, the top of the cylindrical shell is communicated with a first bent pipe, and the top of the kiln head is fixedly provided with a second bent pipe. The upper end of the second bent pipe extends out of the kiln head, the lower end of the second bent pipe extends into the kiln body, a three-way switching valve is arranged above the barrel shell, the two output ends of the lower side of the three-way switching valve are communicated and assembled with the second bent pipe and the first bent pipe through connecting pipes correspondingly, and a spiral conveyor is fixedly installed at the bottom of the kiln head; an output pipe of the spiral conveyor extends into the kiln body, the bottom of the barrel shell is communicated with one end of a guide hopper, and the other end of the guide hopper is communicated with an input pipe of the spiral conveyor. According to the utility model, two bio-organic fertilizer input modes are provided, and an adaptive drying way can be selected according to requirements, so that the heat efficiency is maximized.

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Description

Technical Field

[0001] The utility model relates to the technical field of drying, in particular to a dryer for the production of biological organic fertilizer. Background Technique

[0002] Biological organic fertilizer is formed by drying, pulverizing and reprocessing livestock and poultry manure, and has the advantages of complete nutrient elements, improving the rhizosphere microbial community of crops, and enhancing the disease and pest resistance of plants.

[0003] In the prior art, a rotary kiln type drying structure is often used. Biological organic fertilizer enters the rolling kiln body from one end and is discharged from the other end. Heat is introduced during the process to achieve the drying treatment of biological organic fertilizer. However, the heat dissipated from the kiln body will cause heat loss, resulting in poor drying effect and energy waste.

[0004] Therefore, in order to solve the above problems, a dryer for the production of biological organic fertilizer is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide a dryer for the production of biological organic fertilizer, which can improve the utilization rate of heat, thereby solving the problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A dryer for the production of biological organic fertilizer includes a kiln head, a kiln body and a kiln tail. The two ends of the kiln body are respectively rotatably installed inside the kiln head and the kiln tail. The kiln body is sleeved with a cylindrical shell. The top of the cylindrical shell is connected and installed with a first elbow pipe. The top of the kiln head is fixedly installed with a second elbow pipe. The upper end of the second elbow pipe extends out of the kiln head, and the lower end of the second elbow pipe extends into the interior of the kiln body. A three-way switching valve is arranged above the cylindrical shell. The two output ends on the lower side of the three-way switching valve are respectively connected and assembled with the second elbow pipe and the first elbow pipe through connecting pipes. The bottom of the kiln head is fixedly installed with a screw conveyor. The input pipe of the screw conveyor is located below the kiln head, and the output pipe of the screw conveyor extends into the interior of the kiln body. One end of a feeding hopper is connected and installed at the bottom of the cylindrical shell, and the other end of the feeding hopper is connected and assembled with the input pipe of the screw conveyor.

[0008] Specifically, a convex point friction belt is arranged on the circumferential side of the kiln body, and the convex point friction belt is located directly below the first elbow pipe.

[0009] Furthermore, the convex point friction belt is composed of convex point rows evenly distributed along the circumferential side of the kiln body. Adjacent convex point rows are arranged in a staggered manner. Each convex point row is composed of 5 or 6 convex point blocks.

[0010] Specifically, annular grooves are provided at both ends of the cylindrical shell. A pair of support rings and a pair of ring seats are fixedly installed on the circumferential side of the kiln body. The support rings are located in the annular grooves. On the side where the support rings and the annular grooves are close to each other, abutment rings are fixedly installed. The distance between the two abutment rings at the same end of the cylindrical shell is larger on the outside and smaller on the inside. On the side where the abutment rings are close to each other, rotary sealing rings are fixedly installed. A tensioning ring is clamped between the rotary sealing rings. Positioning holes are evenly provided on the side of the tensioning ring close to the ring seat. Screws are evenly screwed and installed on the ring seat, and the screws are inserted and assembled with the positioning holes.

[0011] Furthermore, the bottom of the feeding hopper is inclined, and the height from the ground of the bottom of the feeding hopper close to the screw conveyor is less than the height from the ground of the bottom of the feeding hopper far from the screw conveyor.

[0012] Specifically, a thermocouple is installed at one end of the top of the cylindrical shell.

[0013] Specifically, a feeding hopper is fixedly installed at the input end on the upper side of the three-way switching valve.

[0014] Specifically, the outer surfaces of the cylindrical shell and the feeding hopper are coated with a heat insulation layer.

[0015] Specifically, support frames are fixedly installed on both sides of the kiln head, the cylindrical shell and the kiln tail.

[0016] The beneficial effects of the present utility model are as follows:

[0017] There are two input methods for the biological organic fertilizer, and the appropriate drying method can be selected according to requirements to maximize the thermal efficiency. When a lower temperature treatment is required (i.e., 60° - 70°), the material is transported in the same way as the traditional process, and heat insulation is carried out through structures such as the cylindrical shell to avoid heat loss. When a higher temperature treatment is required (i.e., 70° - 80°), the material is sent into the kiln body after passing through the cylindrical shell, the feeding hopper and the screw conveyor, and can absorb the excess heat emitted from the kiln body, and then be dried after preheating, which can save energy and improve the drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the main structural schematic view of the present utility model;

[0019] Figure 2 is the partial structural schematic sectional view of the present utility model;

[0020] Figure 3 is Figure 2 the enlarged structural schematic view of part a in

[0021] In the figure: 1 kiln head, 2 second elbow, 3 feed hopper, 4 three-way switching valve, 5 first elbow, 6 shell, 7 kiln body, 8 kiln tail, 9 bump block, 10 material guiding hopper, 11 support frame, 12 screw conveyor, 13 thermocouple, 14 tensioning ring, 15 screw, 16 ring seat, 17 support ring, 18 rotary seal ring, 19 abutting ring. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figure 1 and Figure 2 , the present invention provides a dryer for the production of biological organic fertilizer, including a kiln head 1, a kiln body 7 and a kiln tail 8. The two ends of the kiln body 7 are respectively rotatably installed inside the kiln head 1 and the kiln tail 8. A burner is externally connected to the side of the kiln head 1 away from the kiln body 7 for providing heat energy. A dust removal device is externally connected to the top of the kiln tail 8 for purifying the discharged gas. The dried biological organic fertilizer is discharged from the bottom of the kiln tail 8. The kiln body 7 is supported by roller supports and is driven by a speed reduction motor group and a belt drive structure. The above is the prior art and can realize the drying process of biological organic fertilizer, and will not be elaborated here.

[0024] Specifically, a shell 6 is sleeved on the kiln body 7. A first elbow 5 is connected and installed at the top of the shell 6. A second elbow 2 is fixedly installed at the top of the kiln head 1. The upper end of the second elbow 2 extends out of the kiln head 1, and the lower end of the second elbow 2 extends into the interior of the kiln body 7. A three-way switching valve 4 is arranged above the shell 6. The two output ends on the lower side of the three-way switching valve 4 are respectively connected and assembled with the second elbow 2 and the first elbow 5 through connecting pipes. The three-way switching valve 4 is an existing device composed of an upper input end, two lower output ends, an external electric cylinder, an internal flap, etc. It can send the biological organic fertilizer entering from the upper input end into the kiln body 7 through a connecting pipe and the second elbow 2, or enter the shell 6 through the other connecting pipe and the first elbow 5 for switching the conveying direction.

[0025] A screw conveyor 12 is fixedly installed at the bottom of the kiln head 1. The screw conveyor 12 is vertically arranged. The input pipe of the screw conveyor 12 is located below the kiln head 1, and the output pipe of the screw conveyor 12 extends into the interior of the kiln body 7. One end of a feeding hopper 10 is connected and installed at the bottom of the cylindrical shell 6, and the other end of the feeding hopper 10 is connected and assembled with the input pipe of the screw conveyor 12. After the bio-organic fertilizer is fed into the cylindrical shell 6, it falls into the feeding hopper 10 after passing through the gap between the cylindrical shell 6 and the kiln body 7, and then is lifted into the kiln body 7 by the working screw conveyor 12. The contact between the bio-organic fertilizer and the kiln body 7 can take away the excess heat on the kiln body 7 and can also preheat the bio-organic fertilizer to be dried, playing an energy-saving role.

[0026] Furthermore, the bottom of the feeding hopper 10 is inclined. The height from the ground of the bottom of the feeding hopper 10 close to the screw conveyor 12 is less than the height from the ground of the bottom of the feeding hopper 10 far from the screw conveyor 12. With such an inclined feeding hopper 10, it is more conducive to the downward convergence of the bio-organic fertilizer to the input pipe of the screw conveyor 12.

[0027] Specifically, a bump friction belt is arranged on the circumferential side of the kiln body 7. The bump friction belt is located directly below the first elbow 5 and is used to crush the agglomerated material blocks discharged from the first elbow 5 to prevent them from accumulating at the lower end of the first elbow 5 and causing poor feeding.

[0028] Furthermore, the bump friction belt is composed of bump rows evenly distributed along the circumferential side of the kiln body 7. Adjacent bump rows are arranged in a staggered manner, and each bump row is composed of 5 or 6 bump blocks 9. Such staggered bump blocks 9 are more conducive to crushing the agglomerated material blocks.

[0029] Specifically, as Figure 3As shown in the figure, annular grooves are provided at both ends of the cylindrical shell 6. A pair of support rings 17 and a pair of ring seats 16 are fixedly installed on the circumferential side of the kiln body 7. The support rings 17 are located in the annular grooves. On the side where the support rings 17 and the annular grooves are close to each other, abutting rings 19 are fixedly installed. The distance between the two abutting rings 19 at the same end of the cylindrical shell 6 is larger on the outside and smaller on the inside. Here, "larger on the outside and smaller on the inside" is referenced to the inside and outside of the cylindrical shell 6. On the side where the abutting rings 19 are close to each other, rotary sealing rings 18 are fixedly installed. The rotary sealing rings 18 are existing components. A tensioning ring 14 is clamped between the rotary sealing rings 18. The cross-section of the tensioning ring 14 is an isosceles trapezoid to meet the purpose of clamping the two rotary sealing rings 18 simultaneously. On the side of the tensioning ring 14 close to the ring seat 16, positioning holes are evenly provided. The ring seat 16 is evenly screwed with screws 15, and the screws 15 are inserted and assembled with the positioning holes; the abutting rings 19 are thicker than the wall thickness of the cylindrical shell 6, which can ensure sufficient working surface of the rotary sealing rings 18. By screwing the screws 15, the clamping strength between the tensioning ring 14 and the two rotary sealing rings 18 can be adjusted, so as to compensate for the wear of the rotary sealing rings 18 caused by long-term use and ensure the sealing strength of the cylindrical shell 6. In addition, the insertion of the screws 15 into the positioning holes will also drive the tensioning ring 14 to rotate synchronously with the ring seat 16.

[0030] Specifically, a thermocouple 13 is installed at one end of the top of the cylindrical shell 6 for detecting the heat value emitted from the kiln body 7 in the cylindrical shell 6.

[0031] At the upper input end of the three-way switching valve 4, a feed hopper 3 is fixedly installed, which can increase the feeding area and prevent the bio-organic fertilizer from splashing out during input.

[0032] Specifically, the outer surfaces of the cylindrical shell 6 and the material guiding hopper 10 are coated with a heat insulation layer. The heat insulation layer can be made of polystyrene foam plastic material or other heat insulation materials. Without affecting the implementation of this function, it can prevent the utilized heat from flowing away again.

[0033] Specifically, support frames 11 are fixedly installed on both sides of the kiln head 1, the cylindrical shell 6 and the kiln tail 8. Through the support frames 11, the kiln head 1, the cylindrical shell 6 and the kiln tail 8 can be supported, leaving enough space for the arrangement of structures such as the material guiding hopper 10 and the screw conveyor 12 below.

[0034] The three-way switching valve 4, the thermocouple 13 and the screw conveyor 12 are electrically connected to the controller in the external control box through wires and are controlled by the buttons on the control box.

[0035] The working principle of this embodiment:

[0036] According to the usage requirements, the working mode can be selected:

[0037] Working mode 1 is applicable when a lower temperature is required for processing, i.e., 60° - 70°. At this time, less excess heat is emitted from the kiln body 7. At this time, the three-way switching valve 4 connects the feed hopper 3 and the second elbow 2. The bio-organic fertilizer is directly fed into one end of the kiln body 7 and discharged from the other end. It is turned over by the rotating kiln body 7 and dried by the heat introduced by the burner. At this time, structures such as the cylinder shell 6 play a heat preservation role;

[0038] Working mode 2 is applicable when a higher temperature is required for processing, i.e., 70° - 80°. At this time, more excess heat is emitted from the kiln body 7. At this time, the three-way switching valve 4 connects the feed hopper 3 and the first elbow 5. The bio-organic fertilizer falls from the gap between the cylinder shell 6 and the kiln body 7 into the guide hopper 10, absorbs the excess heat to complete preheating, and is finally sent into the kiln body 7 by the screw conveyor 12 to complete drying, which can save energy and improve the drying efficiency.

[0039] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dryer for the production of bio-organic fertilizer, comprising a kiln head (1), a kiln body (7) and a kiln tail (8), wherein the two ends of the kiln body (7) are respectively rotatably installed inside the kiln head (1) and the kiln tail (8), and it is characterized in that: The kiln body (7) is sleeved with a cylindrical shell (6). The top of the cylindrical shell (6) is connected and installed with a first elbow (5). The top of the kiln head (1) is fixedly installed with a second elbow (2). The upper end of the second elbow (2) extends out of the kiln head (1), and the lower end of the second elbow (2) extends into the interior of the kiln body (7). A three-way switching valve (4) is arranged above the cylindrical shell (6). The two output ends on the lower side of the three-way switching valve (4) are respectively connected and assembled with the second elbow (2) and the first elbow (5) through connecting pipes. The bottom of the kiln head (1) is fixedly installed with a screw conveyor (12). The input pipe of the screw conveyor (12) is located below the kiln head (1), and the output pipe of the screw conveyor (12) extends into the interior of the kiln body (7). One end of a feed hopper (10) is connected and installed at the bottom of the cylindrical shell (6), and the other end of the feed hopper (10) is connected and assembled with the input pipe of the screw conveyor (12).

2. The dryer for the production of bio-organic fertilizer according to claim 1, characterized in that: A bump friction belt is arranged on the circumferential side of the kiln body (7), and the bump friction belt is located directly below the first elbow (5).

3. The dryer for the production of biological organic fertilizer according to claim 2, characterized in that: The bump friction belt is composed of rows of bumps evenly distributed along the circumferential side of the kiln body (7). Adjacent rows of bumps are arranged in a staggered manner. Each row of bumps is composed of 5 or 6 bump blocks (9).

4. The dryer for the production of biological organic fertilizer according to claim 1, characterized in that: Annular grooves are opened at both ends of the cylindrical shell (6). A pair of support rings (17) and a pair of ring seats (16) are fixedly installed on the circumferential side of the kiln body (7). The support rings (17) are located in the annular grooves. Sealing rings (19) are fixedly installed on one side of the support rings (17) and the annular grooves close to each other. The distance between the two sealing rings (19) at the same end of the cylindrical shell (6) is larger on the outside and smaller on the inside. Rotating sealing rings (18) are fixedly installed on one side of the sealing rings (19) close to each other. A tensioning ring (14) is clamped between the rotating sealing rings (18). Positioning holes are evenly opened on one side of the tensioning ring (14) close to the ring seat (16). Screws (15) are evenly screwed and installed on the ring seat (16), and the screws (15) are inserted and assembled with the positioning holes.

5. The dryer for the production of bio-organic fertilizer according to claim 1, characterized in that: The bottom of the feed hopper (10) is inclined, and the height from the ground of the bottom of the feed hopper (10) close to the screw conveyor (12) is less than the height from the ground of the bottom of the feed hopper (10) far from the screw conveyor (12).

6. The dryer for the production of biological organic fertilizer according to claim 1, characterized in that: A thermocouple (13) is installed at one end of the top of the cylindrical shell (6).

7. The dryer for the production of bio-organic fertilizer according to claim 1, wherein: A feed hopper (3) is fixedly installed at the input end on the upper side of the three-way switching valve (4).

8. The dryer for the production of bio-organic fertilizer according to claim 1, characterized in that: The outer surfaces of the cylindrical shell (6) and the feed hopper (10) are coated with a heat insulation layer.

9. The dryer for the production of biological organic fertilizer according to claim 1, characterized in that: Support frames (11) are fixedly installed on both sides of the kiln head (1), the cylindrical shell (6) and the kiln tail (8).