A drying equipment for plant feed production

Abstract

This utility model discloses a drying equipment for plant feed production, comprising: a drying drum with rotatable support arms mounted at both ends, and a material inlet in the middle of its outer wall, with a rotating protective door installed on the outer wall corresponding to the material inlet; an air outlet connecting pipe rotatably mounted at one end of the drying drum, with an exhaust pipe head fixedly installed at one end of the exhaust pipe head, a guide pipe fixedly installed at the end of the exhaust pipe head, and a heat exchange connecting box fixedly installed at one end of the guide pipe. This utility model utilizes a diverting cone design in the air inlet connecting pipe to ensure a diffused distribution of hot air, preventing direct airflow that could cause feed caking; combined with dual heating from an electric heating rod and a heat exchange inlet pipe, it guarantees the drying quality of the plant feed; the exhaust system discharges condensed water vapor through the heat exchange vent pipe, preventing the accumulation of large amounts of high-temperature steam inside the drying drum and further improving the drying effect of the plant feed.

Description

Technical Field

[0001] This utility model relates to the field of feed production technology, and in particular to a drying device for plant feed production. Background Technology

[0002] In existing technologies, plant-based feed is the most important feed source in livestock and poultry farming, mainly divided into four categories: roughage, green fodder, concentrate, and root and tuber feed. Concentrate feed: with a crude fiber content of less than 18%, including energy feeds such as corn and sorghum, and protein feeds such as soybean meal and rapeseed cake, which need to be processed before feeding to improve digestibility.

[0003] A search revealed a Chinese patent application with patent number 202421567142.1, which discloses a drying equipment for the production of natural plant feed. The equipment can perform preheating, crushing, and drying operations on materials in sequence, which improves the effect and efficiency of heating and drying and is beneficial to production.

[0004] In actual use, this device mainly relies on the continuous evaporation of water vapor during the feed drying process to increase the internal air pressure and achieve the purpose of exhaust. However, this method of exhaust is relatively slow. When the feed is dried to a certain extent, the pressure change inside the device is insufficient to exhaust the steam, which may cause some steam to be reabsorbed by the feed or condensed on the inner wall of the device, reducing the feed drying effect and affecting the drying speed of the device for new feed in the future. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drying device for plant feed production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A drying device for producing plant feed includes: The drying drum has a support frame arm rotatably installed at both ends, and a material port is opened in the middle of the outer wall. A rotating protective door is installed on the outer wall corresponding to the material port. An exhaust connection pipe is rotatably mounted on one end of the drying drum, and an exhaust pipe head is fixedly mounted on one end of the exhaust connection pipe. An exhaust pipe is fixedly mounted on the end of the exhaust pipe head, and a heat exchange box is fixedly mounted on one end of the exhaust pipe. The heat exchange box is used to absorb the heat from the hot air stream discharged from the drying drum and condense water vapor. An air inlet connecting pipe is rotatably mounted at the other end of the drying drum, and a connecting air guide pipe is fixedly mounted at the end of the air inlet connecting pipe. An air guide pipe head is fixedly mounted at one end of the connecting air guide pipe head, and a heating connecting cylinder is fixedly mounted at the end of the heating connecting cylinder. An air outlet guiding cylinder is fixedly mounted at the end of the heating connecting cylinder. An air inlet box is connected to one end of the air outlet guiding cylinder. Multiple heat exchange air inlet pipes are fixedly mounted on one side of the air inlet box. The heat exchange air inlet pipes are inserted into the heat exchange box and exit from the top of the heat exchange box. They draw air from the outside and absorb heat from inside the heat exchange box, heat the air inside the heating connecting cylinder, and then introduce it into the drying drum.

[0007] As a further improvement of this utility model: a filter screen is fixedly installed at one end of the inner cavity of the air outlet connecting pipe, and an exhaust fan is fixedly installed inside the exhaust pipe head.

[0008] As a further embodiment of this utility model: the two ends of the heat exchange connection box are welded with connecting pipe heads for connecting pipelines, and end plates are fixedly installed inside the two connecting pipe heads. Multiple heat exchange vent pipes are fixedly connected between the two end plates.

[0009] As a further embodiment of this utility model: an intake fan is fixedly installed inside the intake connection box, and an end cap is welded to one end of the exhaust air guide tube, and the end cap is fixedly installed on one side of the intake connection box.

[0010] As a further improvement of this utility model: multiple positioning cylinders are welded at equal intervals to the top of the outer wall of the heating connecting cylinder, and an electric heating rod is fixedly installed inside the positioning cylinder.

[0011] As a further embodiment of this utility model: a mounting ring is fixedly installed on one side of the outer wall of the drying drum, and a driven sprocket is fixedly installed on the outer wall of the mounting ring.

[0012] As a further embodiment of this utility model: a servo motor is provided on one side of the drying drum, and a drive sprocket is fixedly installed on the output shaft of the servo motor. The drive sprocket is connected to the driven sprocket through a chain.

[0013] As a further improvement of this utility model: a drying mesh is fixedly installed on the top of the inner cavity of the heat exchange inlet pipe, and a protective mesh cover is sleeved on the top of the multiple heat exchange inlet pipes.

[0014] Compared with the prior art, this utility model provides a drying device for plant feed production, which has the following beneficial effects: 1. This drying equipment for plant feed production uses a diversion cone design in the air inlet connection pipe to distribute hot air in a diffused manner, avoiding direct airflow that could cause feed clumping; combined with dual heating from electric heating rods and heat exchange air inlet pipes, it ensures the drying quality of plant feed; the exhaust system condenses water vapor through the heat exchange vent pipe before discharging, preventing the accumulation of large amounts of high-temperature steam inside the drying drum, further improving the drying effect of plant feed.

[0015] 2. This drying equipment for plant feed production achieves closed-loop control by installing a temperature sensor and controller on the air inlet connection pipe, which can accurately adjust the drying temperature to ensure the color and nutritional quality of the feed. At the same time, the water cooling system of the heat exchange connection box realizes the recovery of energy from the humid and hot air, reducing energy consumption. The heat exchange tube adopts a quick-release end clamp structure, which is convenient for cleaning scale and maintenance, reducing downtime.

[0016] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall assembly of this utility model; Figure 2 This is a partial cross-sectional view of the overall assembly of this utility model. Figure 3 This utility model Figure 2 A magnified schematic diagram of the local structure at point A; Figure 4 This utility model Figure 2 A magnified view of the structure at point B in the middle; Figure 5 This utility model Figure 2 A magnified schematic diagram of the local structure at point C; Figure 6 This utility model Figure 2 A magnified schematic diagram of the structure at point D.

[0018] In the diagram: 1. Support base; 2. Feed collection box; 3. Drying drum; 4. Rotating protective door; 5. Support frame arm; 6. Exhaust connection pipe; 7. Inlet connection pipe; 8. Mounting seat ring; 9. Driven sprocket; 10. Drive sprocket; 11. Servo motor; 12. Motor base; 13. Extraction pipe head; 14. Air guide connection pipe; 15. Heat exchange connection box; 16. Exhaust bend; 17. Heat exchange inlet pipe; 18. Mounting connection pipe; 19. 20. Inlet connection box; 21. End cap; 22. Outlet air guide tube; 23. Heating connection tube; 24. Air guide tube head; 25. Connecting air guide tube; 26. Diverter cone; 27. Fixing ear plate; 28. Ear plate fixing seat; 29. ​​Filter screen; 30. Exhaust fan; 31. End clamping plate; 32. Heat exchange vent pipe; 33. Drying screen; 34. Protective mesh cover; 35. Inlet fan; 36. Positioning insert; 37. Electric heating rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] A drying device for plant feed production, such as Figures 1 to 6 As shown, it includes: a drying drum 3 set at the top of the support base 1. The middle part of the drying drum 3 is cylindrical and the two ends are frustum-shaped, which facilitates the concentration of plant feed inside the drying drum 3, which is convenient for hot air drying and easy to discharge.

[0021] Both ends of the drying drum 3 are welded with bearing pipes. The outer wall of the bearing pipe is rotatably mounted with a bearing arm 5, which is fixedly installed on the top of the bearing base 1. A feed collection box 2 is set directly below the drying drum 3 to collect the dried plant feed.

[0022] A feed inlet is provided in the middle of the outer wall of the drying drum 3. The feed inlet is used for feeding and discharging plant feed. A rotating protective door 4 is installed on the outer wall corresponding to the feed inlet. The rotating protective door 4 can be locked to close the feed inlet and prevent feed from flying out during the rotation of the drying drum 3.

[0023] An air outlet connecting pipe 6 is rotatably installed inside the bearing tube at one end of the drying drum 3 via a bearing. One end of the air outlet connecting pipe 6 extends into the interior of the drying drum 3, and a filter screen 28 is fixedly installed inside this end to prevent the dried plant feed debris from being carried away from the drying drum 3 by the airflow.

[0024] An air inlet pipe 7 is rotatably installed inside the bearing pipe at the other end of the drying drum 3 via a bearing. One end of the air inlet pipe 7 extends into the interior of the drying drum 3, and a diverter cone 25 is welded inside this end to facilitate the input of hot air to dry the plant feed, avoiding direct hot air flow and reducing the drying effect of the plant feed.

[0025] Both the exhaust pipe 6 and the intake pipe 7 have a fixed ear plate 26 welded to the middle of their outer walls. An ear plate fixing seat 27 is fixedly installed on one side of the fixed ear plate 26 by bolts. The ear plate fixing seat 27 is welded to the corresponding bearing frame arm 5 to ensure the stability of the exhaust pipe 6 and the intake pipe 7.

[0026] A mounting ring 8 is fixedly installed on the outer wall of the drying drum 3 near the air inlet connection pipe 7, and a driven sprocket 9 is fixedly installed on the outer wall of the mounting ring 8. A motor base 12 is fixedly installed on the top of the bearing base 1 on one side of the drying drum 3. A servo motor 11 is fixedly installed on the top of the motor base 12. A drive sprocket 10 is fixedly installed on the output shaft of the servo motor 11. The drive sprocket 10 is connected to the driven sprocket 9 through a chain and is used to drive the drying drum 3 to rotate stably, fully dry the plant feed, ensure the drying effect of the plant feed, and avoid large-area clumping of the plant feed.

[0027] An exhaust pipe head 13 is fixedly installed at the end of the exhaust pipe 6 away from the intake pipe 7. The exhaust pipe head 13 is a variable diameter pipe with a larger diameter at the end away from the exhaust pipe 6. An exhaust fan 29 is fixedly installed inside it to extract the air that is filled with the evaporation vapor of plant feed inside the drying drum 3.

[0028] A gas guide pipe 14 is fixedly installed at the large-diameter end of the exhaust pipe head 13. A heat exchange box 15 is fixedly installed at one end of the gas guide pipe 14. The heat exchange box 15 is fixedly installed on the support base 1 and is used to absorb the heat of the hot air flow from the drying drum 3 and condense water vapor.

[0029] The heat exchange connection box 15 has connecting pipe heads welded to both ends for connecting pipelines. One of the connecting pipe heads is fixedly connected to the air guide connecting pipe 14, and the other connecting pipe head is fixedly installed with an exhaust elbow 16. Both connecting pipe heads have end clamps 30 fixedly installed inside, and multiple heat exchange vent pipes 31 are fixedly connected between the two end clamps 30.

[0030] A water injection pipe is welded to the top of the heat exchange connection box 15 near the exhaust bend 16. A pipe cap is installed at the top of the water injection pipe to facilitate the injection of clean water into the heat exchange connection box 15.

[0031] The exhaust fan 29 draws high-humidity, high-temperature air from inside the drying drum 3 into the interior of multiple heat exchange vent pipes 31. The clean water inside the heat exchange connection box 15 absorbs the heat from the high-humidity, high-temperature air, causing the water vapor in the air to liquefy and be discharged through the exhaust bend 16.

[0032] A connecting air pipe 24 is fixedly installed at the end of the air inlet connecting pipe 7 away from the air outlet connecting pipe 6. An air pipe head 23 is fixedly installed at one end of the connecting air pipe 24. The air pipe head 23 is a variable diameter pipe. A heating connecting cylinder 22 is fixedly installed at the end with the larger diameter. Multiple positioning cylinders 35 are welded at equal intervals to the top of the heating connecting cylinder 22. An electric heating rod 36 is fixedly installed inside the positioning cylinder 35. The electric heating rod 36 heats the air.

[0033] An air outlet guide tube 21 is fixedly installed at the end of the heating connecting tube 22. An end cap 20 is welded to one end of the air outlet guide tube 21. An air inlet connecting box 19 is fixedly installed on one side of the end cap 20. An air inlet fan 34 is fixedly installed inside the air inlet connecting box 19 for continuously inputting air into the interior of the drying drum 3.

[0034] The four corners of the air inlet connection box 19 away from the end cover 20 are welded with mounting connection pipes 18. The ends of the mounting connection pipes 18 are fixedly installed with heat exchange air inlet pipes 17. Multiple heat exchange air inlet pipes 17 are inserted into the heat exchange connection box 15 and all of them pass through the top of the heat exchange connection box 15 to draw air from the outside and absorb the heat inside the heat exchange connection box 15.

[0035] A drying mesh 32 (such as a porous drying body made of activated alumina) is fixedly installed on the top of the inner cavity of the heat exchange inlet pipe 17 to preliminarily filter water vapor in the air. A protective mesh cover 33 is sleeved on the top of multiple heat exchange inlet pipes 17. The protective mesh cover 33 is fixedly installed on the top of the heat exchange connection box 15 to filter dust in the air, ensure the purity of the air, and reduce the possibility of contaminating the plant feed.

[0036] Working principle: Please refer to Figures 1 to 6 Assemble the device as shown in the figure; In actual use, the feed inlet is first turned upwards, then the rotating protective door 4 is opened to pour the feed into the drying drum 3. Next, the rotating protective door 4 is fixed to close the feed inlet. Then, the servo motor 11 (controlled by a controller, using conventional technology) is started, driving the drying drum 3 to rotate via the drive sprocket 10 and driven sprocket 9. Next, the exhaust fan 29 and the intake fan 34 are started. The exhaust fan 29 draws high-temperature, high-humidity air from inside the drying drum 3 and introduces it into the heat exchange ventilation pipe 31. The heat of the air is absorbed by the water flow inside the heat exchange connection box 15, and the water vapor in the air liquefies and is discharged through the exhaust bend 16. The intake fan 34 draws in outside air through the heat exchange intake pipe 17. The outside air is initially heated in the heat exchange connection box 15, then heated by the electric heating rod 36 inside the heating connection cylinder 22, and finally introduced into the intake connection pipe 7, entering the drying drum 3 to dry the plant feed.

[0037] Conventional technical means can be used to install a temperature detection sensor inside the air inlet connection pipe 7 to monitor the temperature inside the drying drum 3, establish a data connection with the controller, and the controller further controls the heating temperature of the electric heating rod 36 to form a closed loop.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A drying device for producing plant feed, characterized in that, include: The drying drum (3) has a support frame arm (5) rotatably installed at both ends, and a material port is opened in the middle of the outer wall. A rotating protective door (4) is installed on the outer wall corresponding to the material port. An exhaust pipe (6) is rotatably mounted on one end of the drying drum (3), and an exhaust pipe head (13) is fixedly mounted on one end of the exhaust pipe (6). An exhaust pipe head (13) is fixedly mounted on the end of the exhaust pipe head (13). A guide pipe (14) is fixedly mounted on one end of the guide pipe (14). A heat exchange box (15) is fixedly mounted on one end of the guide pipe (14). The heat exchange box (15) is used to absorb the heat of the hot air flow discharged from the drying drum (3) and condense water vapor. An air inlet connecting pipe (7) is rotatably installed at the other end of the drying drum (3), and a connecting air guide pipe (24) is fixedly installed at the end of the air inlet connecting pipe (7). An air guide pipe head (23) is fixedly installed at one end of the connecting air guide pipe (24). A heating connecting cylinder (22) is fixedly installed at the end of the air guide pipe head (23). An air outlet guide cylinder (21) is fixedly installed at the end of the heating connecting cylinder (22). An air outlet guide cylinder (21) is connected to an air inlet connecting box (19) at one end. Multiple heat exchange air inlet pipes (17) are fixedly installed on one side of the air inlet connecting box (19). The heat exchange air inlet pipes (17) are inserted into the heat exchange connecting box (15) and pass out from the top of the heat exchange connecting box (15). They draw air from the outside and absorb the heat inside the heat exchange connecting box (15), heat it inside the heating connecting cylinder (22), and then introduce it into the drying drum (3).

2. The drying equipment for plant feed production according to claim 1, characterized in that: A filter screen (28) is fixedly installed at one end of the inner cavity of the air outlet connecting pipe (6), and an exhaust fan (29) is fixedly installed inside the exhaust pipe head (13).

3. The drying equipment for plant feed production according to claim 1, characterized in that: The heat exchange connection box (15) has connecting pipe heads welded to both ends for connecting pipelines. Each of the two connecting pipe heads has an end plate (30) fixedly installed inside. Multiple heat exchange vent pipes (31) are fixedly connected between the two end plates (30).

4. The drying equipment for plant feed production according to claim 1, characterized in that: An intake fan (34) is fixedly installed inside the intake connection box (19), and an end cap (20) is welded to one end of the exhaust air guide tube (21). The end cap (20) is fixedly installed on one side of the intake connection box (19).

5. A drying device for producing plant feed according to claim 1, characterized in that: Multiple positioning inserts (35) are welded at equal intervals to the top of the outer wall of the heating connecting cylinder (22), and an electric heating rod (36) is fixedly installed inside the positioning insert (35).

6. The drying equipment for plant feed production according to claim 1, characterized in that: A mounting ring (8) is fixedly installed on one side of the outer wall of the drying drum (3), and a driven sprocket (9) is fixedly installed on the outer wall of the mounting ring (8).

7. A drying device for producing plant feed according to claim 1, characterized in that: A servo motor (11) is provided on one side of the drying drum (3). The output shaft of the servo motor (11) is fixedly mounted with a drive sprocket (10). The drive sprocket (10) is connected to the driven sprocket (9) via a chain.

8. A drying device for producing plant feed according to claim 1, characterized in that: A drying mesh (32) is fixedly installed on the top of the inner cavity of the heat exchange inlet pipe (17), and a protective mesh cover (33) is sleeved on the top of the multiple heat exchange inlet pipes (17).

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