A granular feed drying device

Abstract

A granular feed drying device, comprising a drying bed device and a drum drying device arranged in sequence, the drying bed device comprising a drying chamber, a conveying device passing through the drying chamber, and a guide plate arranged below the outlet of the conveying device, the drum drying device comprising a base and a drum dryer fixedly installed on the base, the base being provided with an inclination driving device, and when the base is in an inclined state, the inlet of the drum dryer is directly below the outlet of the guide plate. The granular feed drying device combines the drying bed device and the drum drying device in sequence, the hot air cavity of the drying bed and the conveying device are reasonably arranged, and the heat loss is reduced in cooperation with the baffle; the guide plate ensures smooth transfer of the material to the drum dryer; the inclination driving device of the base can flexibly adjust the position of the drum; the drum dryer has no stirring rod, and the feed is turned over by the material pushing plate, reducing the breakage rate; effectively solving the shortcomings of single drying method, improving the drying efficiency and feed quality.

Description

Technical Field

[0001] This utility model relates to the field of feed processing equipment technology, specifically to a pellet feed drying device. Background Technology

[0002] In the production of pelleted feed, the pelleted feed needs to be dried to meet storage and usage requirements. However, pelleted feed has a high moisture content before drying, which makes it physically fragile and easily broken.

[0003] In traditional drying methods, if only a drying bed is used, although the drying bed can dry the feed while it is being transported, and the process is usually slow, the drying bed often needs to be very long in length to match the pelleting rhythm. This not only occupies a lot of production space, but also increases equipment and operating costs.

[0004] While rotary drum dryers, lacking agitators, theoretically avoid severe mechanical damage to granular feed and are suitable for drying such feeds, they are insufficient for high-moisture feeds. In the initial drying stage, the feed's strength is too low, resulting in a high breakage rate during tumbling within the drum, thus failing to effectively guarantee feed quality and yield.

[0005] In summary, existing single drying methods cannot adequately meet the drying requirements of pellet feed. There is an urgent need for a more efficient drying device with a lower breakage rate to solve these problems. Therefore, developing a pellet feed drying device that effectively combines a drying bed and a rotary drum dryer is of great practical significance. Summary of the Invention

[0006] To address the aforementioned problems, this utility model provides a pellet feed drying device that sequentially combines a drying bed and a drum dryer. The hot air chamber and conveying device of the drying bed are rationally arranged, and baffles reduce heat loss. The guide plate ensures smooth material transfer to the drum dryer. The tilting drive device of the base can flexibly adjust the position of the drum. The drum dryer has no stirring rod; it relies on a turning plate to agitate the feed, reducing the breakage rate. This effectively solves the shortcomings of a single drying method and improves drying efficiency and feed quality.

[0007] The technical solution of this utility model is as follows: A pellet feed drying device includes a drying bed and a drum dryer arranged in sequence. The drying bed includes a drying chamber, a conveying device, and a guide plate. The conveying device passes through the drying chamber, and the guide plate is located below the outlet of the conveying device. The drum dryer includes a base and a drum dryer. The drum dryer is fixedly installed on the base, and the base is provided with an tilting drive device. When the base is tilted, the inlet of the drum dryer is directly below the outlet of the guide plate.

[0008] The tilting drive includes a telescopic element, one side of the base is hinged to a column fixed to the equipment mounting base, and the other side is fixedly connected to the equipment mounting base via the telescopic element.

[0009] The telescopic element can be any one of a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0010] The drying chamber consists of support legs and a hot air chamber. The hot air chamber is fixed to the equipment mounting base by the support legs. The hot air chamber has a chamber inlet and a chamber outlet on both sides, and the conveying device passes through the chamber inlet and the chamber outlet. The top of the hot air chamber is provided with a first hot air inlet pipe that connects the outside and inside of the hot air chamber. The top of the hot air chamber is provided with a hot air outlet pipe that connects to the first hot air inlet pipe along the length of the hot air chamber. Several nozzles are evenly distributed on the hot air outlet pipe.

[0011] An inlet baffle and an outlet baffle, which are in flexible contact with the conveying device, are installed on the upper and lower sides of the inlet and outlet of the cavity, respectively. The inlet baffle includes an upper inlet baffle and a lower inlet baffle, and the outlet baffle includes an upper outlet baffle and a lower outlet baffle.

[0012] The guide plate consists of a base plate and side plates, with the two side plates fixedly installed on both sides of the base plate.

[0013] A rotating shaft is provided on the outer side of the side plate. The rotating shaft is rotatably mounted on the roller frame of the conveying device. A baffle bolt for limiting the guide plate is installed on the roller frame. The baffle bolt consists of a bolt head, a stud, and a stop post. A threaded hole that mates with the stud is provided on the roller frame.

[0014] The drum dryer includes a drum base, a drum body, and a drum body rotation drive device. The drum base is fixed on the base, and the drum body is rotatably mounted on the drum base. The drum body rotates through the drum body rotation drive device.

[0015] The cylinder rotation drive device includes a motor, a driving gear, and a driven gear ring. The motor is fixedly mounted on the base, the driving gear is fixedly connected to the output shaft of the motor, and the driven gear ring that meshes with the driving gear is fixedly installed on the cylinder.

[0016] The cylinder consists of a cylinder body, an inlet cover, and a cylinder bottom. Several material feeding plates are evenly distributed on the inner wall of the cylinder body. The inlet cover is installed on the feed end of the cylinder body in an openable and closable manner. The cylinder bottom is fixedly installed on the discharge end of the cylinder body. A cylinder bottom discharge port is provided on the cylinder bottom discharge port, and a removable cover plate is provided on the cylinder bottom discharge port. A second hot air inlet pipe is provided at the center of the cylinder bottom, connecting the outside and inside of the cylinder body. The second hot air inlet pipe is connected to the hot air source through a rotating pipe joint.

[0017] The beneficial effects of this utility model are as follows: 1. This utility model discloses a pellet feed drying device. This pellet feed drying device addresses the characteristics of pellet feed having high moisture content and fragile physical properties before drying, as well as the shortcomings of traditional single drying methods (using only a drying bed or only a drum dryer). It sets up the drying bed equipment and the drum dryer equipment in sequence, effectively combining the two drying methods. This solves the problem that the existing single drying method cannot well meet the drying needs of pellet feed, and provides a more efficient solution for pellet feed drying.

[0018] 2. This utility model discloses a pellet feed drying device, which optimizes the structure of the drying bed equipment: the drying chamber and the conveying device are rationally arranged. The drying chamber consists of support legs and a hot air chamber. The conveying device passes through the inlet and outlet of the hot air chamber. A first hot air inlet pipe is set at the top of the hot air chamber, and a hot air outlet pipe connected to the inlet pipe is set along the length of the inner top. The outlet pipe is evenly distributed with nozzles so that the hot air can be evenly blown onto the pellet feed on the conveying device, realizing simultaneous conveying and drying. The drying process is relatively slow, which helps to reduce the feed breakage rate. Baffles are set to reduce heat loss. Inlet baffles and outlet baffles are installed on the upper and lower sides of the inlet and outlet of the chamber, respectively, and are in flexible contact with the conveying device. This can effectively reduce the heat loss in the hot air chamber, improve drying efficiency, and reduce energy consumption.

[0019] 3. The present invention discloses a pellet feed drying device, which realizes smooth material transfer. The guide plate is set below the outlet of the conveying device and consists of a bottom plate and a side plate. The outer side of the side plate is provided with a rotating shaft that is rotatably installed on the roller frame of the conveying device. The roller frame is equipped with baffle bolts for limiting the position, which can ensure that the pellet feed processed by the drying bed equipment can fall accurately and smoothly into the inlet of the drum dryer, ensuring the continuity and stability of material transfer.

[0020] 4. This utility model discloses a pellet feed drying device. The pellet feed drying device can flexibly adjust the position of the drum dryer. The base of the drum dryer is equipped with a tilting drive device, which adopts a telescopic element. One side of the base is hinged to a column fixed on the equipment mounting foundation, and the other side is fixedly connected to the equipment mounting foundation through the telescopic element. The telescopic element can be a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. When the base is in a tilted state, the inlet of the drum dryer is directly below the outlet of the guide plate. The position of the drum dryer can be flexibly adjusted according to the actual production situation, which facilitates the entry of materials into the drum dryer and improves the adaptability and ease of operation of the equipment.

[0021] 5. This utility model discloses a pellet feed drying device that reduces feed breakage rate. The drum dryer includes a drum base, a drum body, and a drum body rotation drive device. The drum body is rotatably mounted on the drum base and rotates through the drum body rotation drive device composed of a motor, a drive gear, and a driven gear ring. Several feed-pulling plates are evenly distributed on the inner wall of the drum. There is no stirring rod, so it will not cause serious mechanical damage to the pellet feed. Compared with traditional drying methods, it can effectively reduce the breakage rate of feed with high moisture content and low strength in the early stage of drying, and ensure feed quality and finished product yield. Attached Figure Description

[0022] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0023] In the attached diagram: Figure 1 This is a schematic diagram of the composition of a pellet feed drying device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the drying bed equipment of a pellet feed drying device according to an embodiment of the present invention; Figure 3 for Figure 2 Sectional view of AA; Figure 4 This is a schematic diagram of the structure of a drum drying device for a pellet feed drying apparatus according to an embodiment of the present invention; The components represented by the various reference numerals in the diagram are: This utility model includes: 100. Drying bed equipment; 110. Drying chamber; 111. Support leg; 112. Hot air cavity; 112A. Cavity inlet; 112B. Cavity outlet; 113. First hot air inlet pipe; 114. Hot air outlet pipe; 115. Nozzle; 116. Upper baffle at the inlet; 117. Lower baffle at the inlet; 118. Upper baffle at the outlet; 119. Lower baffle at the outlet; 120. Conveying device; 121. Roller frame; 122. Rotary roller; 123. Conveyor belt; 130. Guide plate; 131. Base plate; 132. Side plate; 133. Rotating shaft; 140. Baffle. Plate bolt, 141, bolt head, 142, stud, 143, stop post, 200, drum drying equipment, 210, telescopic element, 220, column, 230, base, 240, motor, 250, drive gear, 260, driven gear ring, 270, drum seat, 280, drum body, 281, drum body, 281A, material feeding plate, 282, inlet cover, 283, drum bottom, 283A, drum bottom outlet, 283B, cover plate, 283C, second hot air inlet pipe, 290, rotary pipe joint, 300, first equipment installation foundation, 400, second equipment installation foundation. Detailed Implementation

[0024] like Figure 1 As shown, the pellet feed drying device includes a drying bed device 100 and a drum dryer device 200 arranged in sequence. The drying bed device 100 is fixedly installed on a first equipment installation foundation 300, and the drum dryer device 200 is fixedly installed on a second equipment installation foundation 400. The elevation of the second equipment installation foundation 400 is lower than that of the first equipment installation foundation 300 to ensure that the material coming out of the drying bed device 100 can fall smoothly into the drum dryer device 200.

[0025] like Figure 2 As shown, the drying bed equipment 100 consists of a drying chamber 110, a conveying device 120, an inlet baffle, an outlet baffle, and a guide plate 130.

[0026] The drying chamber 110 consists of a support leg 111 and a hot air chamber 112. The hot air chamber 112 is fixed on the first equipment mounting base 300 by the support leg 111. The hot air chamber 112 has a chamber inlet 112A and a chamber outlet 112B on its two sides, respectively. The conveying device 120 passes through the chamber inlet 112A and the chamber outlet 112B. The top of the hot air chamber 112 is provided with a first hot air inlet pipe 113 that connects the outside and inside of the hot air chamber 112. The top of the hot air chamber 112 is provided with a hot air outlet pipe 114 that connects to the first hot air inlet pipe 113 along the length of the hot air chamber 112. Several nozzles 115 are evenly distributed on the hot air outlet pipe 114.

[0027] The conveying device 120 adopts a belt conveyor structure commonly used in the prior art, including a roller frame 121, a rotating roller 122, and a conveyor belt 123. The roller frame 121 is fixedly mounted on the first equipment mounting base 300. The two ends of the rotating roller 122 are rotatably mounted on the roller frame 121 through bearings or the like. The conveyor belt 123 is fitted onto the two rotating rollers 122. One of the rotating rollers 122 is connected to a drive motor (not shown in the figure). Under the action of the drive motor, the conveyor belt 123 rolls back and forth with the rotation of the rotating roller 122, thereby transporting the material placed on the conveyor belt 123 from one side to the other side. The conveyor belt 123 passes through the drying chamber 110.

[0028] An inlet baffle and an outlet baffle, which flexibly contact the conveyor belt 123, are respectively installed on the upper and lower sides of the cavity inlet 112A and the cavity outlet 112B. The inlet baffle includes an upper inlet baffle 116 and a lower inlet baffle 117. The upper inlet baffle 116 is a thin sheet of rubber with a certain degree of flexibility. Its upper end is fixed to the upper edge of the cavity inlet 112A, and its lower end hangs down naturally to flexibly contact the surface of the conveyor belt 123. This can effectively prevent hot air from escaping from above the cavity inlet 112A and reduce the entry of external impurities. The lower inlet baffle 117 is also a thin sheet of rubber, with its lower end fixed to the upper edge of the cavity inlet 112A. The lower edge of the feed inlet 112A droops naturally at the top and flexibly contacts the surface of the conveyor belt 123 to reduce the escape of hot air from this point. The discharge outlet baffle includes an upper discharge outlet baffle 118 and a lower discharge outlet baffle 119. The upper discharge outlet baffle 118 is a thin sheet of rubber material, with its upper end fixed to the upper edge of the discharge outlet 112B of the cavity, and its lower end drooping naturally to flexibly contact the surface of the conveyor belt 123 to reduce the escape of hot air from above the discharge outlet 112B of the cavity. The lower discharge outlet baffle 119 is a thin sheet of rubber material, with its lower end fixed to the lower edge of the discharge outlet 112B of the cavity, and its upper end drooping naturally to flexibly contact the surface of the conveyor belt 123 to reduce the escape of hot air.

[0029] The guide plate 130 is positioned below the outlet of the conveyor belt 123, such as... Figure 3As shown, the device consists of a base plate 131 and side plates 132. The two side plates 132 are fixedly installed on both sides of the base plate 131. A rotating shaft 133 is provided on the outer side of the side plates 132. The rotating shaft 133 is rotatably mounted on the roller frame 121 of the conveying device 120. A baffle bolt 140 for limiting the guide plate 130 is installed on the roller frame 121. The baffle bolt 140 consists of a bolt head 141, a stud 142, and a stop post 143. A threaded hole for cooperating with the stud 142 is provided on the roller frame 121. When the guide plate 130 is not in use, the baffle bolt 140 is removed from the roller frame 121. At this time, the guide plate 130 hangs freely under the action of gravity. When the guide plate 130 is to be used, the guide plate 130 is lifted, and then the baffle bolt 140 is installed so that the stop post 143 blocks the bottom of the guide plate 130, thereby making the guide plate 130 tilted.

[0030] like Figure 4 As shown, the drum dryer 200 consists of a base 230, an inclined drive device, and a drum dryer.

[0031] The drum dryer is fixedly installed on the base 230, which is equipped with a tilting drive device.

[0032] The tilting drive device includes a telescopic element 210. One side of the base 230 is hinged to the column 220 fixed on the second equipment mounting base 400, and the other side is fixedly connected to the second equipment mounting base 400 through the telescopic element 210. The telescopic element 210 can be any one of a hydraulic cylinder, a pneumatic cylinder, or an electric push rod. When the base 230 is tilted, the inlet of the drum dryer is raised at a certain angle and is positioned at the outlet of the guide plate 130. This allows the pellet feed to slide gently into the drum dryer at a certain angle, and also allows the pellet feed to have a downward flow tendency after entering the drum dryer.

[0033] The tilting drive can also be used to ensure that the material flows smoothly out of the discharge port when the drum dryer is discharging.

[0034] The drum dryer includes a drum base 270, a drum body 280, and a drum body rotation drive device; the drum base 270 is fixed on the base 230, and the drum body 280 is rotatably mounted on the drum base 270 by means of bearings or other mounting methods, and the drum body 280 is rotated by the drum body rotation drive device.

[0035] The cylinder rotation drive device includes a motor 240, a drive gear 250, and a driven gear ring 260. The motor 240 is fixedly mounted on the base 230, the drive gear 250 is fixedly connected to the output shaft of the motor 240, and the driven gear ring 260, which meshes with the drive gear 250, is fixedly mounted on the cylinder 280.

[0036] The cylinder 280 consists of a cylinder body 281, an inlet cover 282, and a cylinder bottom 283. Several material feeding plates 281A are evenly distributed on the inner wall of the cylinder body 281. The inlet cover 282 is installed at the feed end of the cylinder body 281 in a known manner, such as opening or sliding laterally. The cylinder bottom 283 is fixedly installed at the discharge end of the cylinder body 281. A cylinder bottom discharge port 283A is provided on the cylinder bottom 283. A detachable cover plate 283B is provided on the cylinder bottom discharge port 283A. A second hot air inlet pipe 283C is provided at the center of the cylinder bottom 283, connecting the outside and inside of the cylinder body 280. The second hot air inlet pipe 283C is connected to a hot air source through a rotary pipe joint 290.

[0037] The working process of this pellet feed drying device is as follows: Drying stage of the drying bed equipment 100: The pelleted feed is placed on the conveyor belt 123, and the drive motor drives the rotating roller 122 to rotate, so that the conveyor belt 123 sends the material from the cavity inlet 112A into the drying chamber 110; the hot air source sends hot air into the hot air outlet 114 through the first hot air inlet pipe 113, and then sprays it evenly into the hot air cavity 112 through the nozzle 115 to dry the material on the conveyor belt 123; during the drying process, the inlet baffle and outlet baffle effectively prevent hot air from escaping and external impurities from entering, ensuring the drying effect and material quality; Material transfer stage: The dried material is conveyed out of the cavity outlet 112B by the conveyor belt 123 and falls onto the guide plate 130; if it is necessary to introduce the material into the drum dryer 200, the guide plate 130 is lifted and tilted by the baffle bolt 140, and the material slides down the guide plate 130 to the inlet of the drum dryer; at this time, the tilt angle of the base 230 can be adjusted by the tilting drive device so that the inlet of the drum dryer is accurately located directly below the outlet of the guide plate 130, ensuring that the material enters the drum dryer smoothly; Drying stage of the drum dryer 200: Open the inlet cover 282, the material enters the drum 280, and close the inlet cover 282; adjust the base 230 to a horizontal state, start the motor 240, drive the drive gear 250 to rotate, and then drive the drum 280 to rotate on the drum seat 270 through the driven gear ring 260. At the same time, the hot air source sends hot air into the drum 280 through the second hot air inlet pipe 283C. The material-turning plate 281A on the inner wall of the drum 281 continuously turns the material during the rotation of the drum 280, so that the material is in full contact with the hot air for further drying. After drying, adjust the base 230 to an inclined state, and at this time, ensure that the bottom discharge port 283A is at the bottom. Open the cover plate 283B of the bottom discharge port 283A to discharge the dried material.

[0038] This pellet feed drying device effectively combines a drying bed device 100 and a drum dryer 200. The drying bed device 100 is used to pre-dry the pellet feed with high moisture content, reducing the risk of breakage. Then, the drum dryer 200 is used for deep drying, which improves drying efficiency, ensures feed quality and yield, and reduces equipment footprint and operating costs.

Claims

1. A pellet feed drying device, characterized in that, The equipment includes a drying bed device (100) and a drum dryer device (200) arranged in sequence. The drying bed device (100) includes a drying chamber (110), a conveying device (120) and a guide plate (130). The conveying device (120) passes through the drying chamber (110), and the guide plate (130) is located below the outlet of the conveying device (120). The drum dryer device (200) includes a base (230) and a drum dryer. The drum dryer is fixedly installed on the base (230). The base (230) is provided with an tilting drive device. When the base (230) is tilted, the inlet of the drum dryer is located directly below the outlet of the guide plate (130).

2. The pellet feed drying device according to claim 1, characterized in that, The tilting drive device includes a telescopic element (210), one side of the base (230) is hinged to a column (220) fixed on the equipment mounting base, and the other side is fixedly connected to the equipment mounting base through the telescopic element (210).

3. The pellet feed drying device according to claim 2, characterized in that, The telescopic element (210) is any one of a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

4. The pellet feed drying device according to claim 1, characterized in that, The drying chamber (110) consists of a support leg (111) and a hot air chamber (112). The hot air chamber (112) is fixed to the equipment installation base by the support leg (111). The hot air chamber (112) has a chamber inlet (112A) and a chamber outlet (112B) on both sides respectively. The conveying device (120) passes through the chamber inlet (112A) and the chamber outlet (112B). The top of the hot air chamber (112) is provided with a first hot air inlet pipe (113) that connects the outside and inside of the hot air chamber (112). The top of the hot air chamber (112) is provided with a hot air outlet pipe (114) that connects to the first hot air inlet pipe (113) along the length of the hot air chamber (112). Several nozzles (115) are evenly distributed on the hot air outlet pipe (114).

5. A pellet feed drying device according to claim 4, characterized in that, An inlet baffle and an outlet baffle that flexibly contact the conveying device (120) are installed on the upper and lower sides of the cavity inlet (112A) and cavity outlet (112B), respectively. The inlet baffle includes an upper inlet baffle (116) and a lower inlet baffle (117), and the outlet baffle includes an upper outlet baffle (118) and a lower outlet baffle (119).

6. The pellet feed drying device according to claim 1, characterized in that, The guide plate (130) is composed of a bottom plate (131) and a side plate (132), with the two side plates (132) fixedly installed on both sides of the bottom plate (131).

7. A pellet feed drying device according to claim 6, characterized in that, A rotating shaft (133) is provided on the outside of the side plate (132). The rotating shaft (133) is rotatably mounted on the roller frame (121) of the conveying device (120). A baffle bolt (140) for limiting the guide plate (130) is installed on the roller frame (121). The baffle bolt (140) consists of a bolt head (141), a stud (142) and a stop (143). A threaded hole that mates with the stud (142) is provided on the roller frame (121).

8. The pellet feed drying device according to claim 1, characterized in that, The drum dryer includes a drum base (270), a drum body (280), and a drum body rotation drive device. The drum base (270) is fixed on the base (230), and the drum body (280) is rotatably mounted on the drum base (270). The drum body (280) rotates through the drum body rotation drive device.

9. A pellet feed drying device according to claim 8, characterized in that, The cylinder rotation drive device includes a motor (240), a drive gear (250) and a driven gear ring (260). The motor (240) is fixedly mounted on the base (230). The drive gear (250) is fixedly connected to the output shaft of the motor (240). The driven gear ring (260) meshing with the drive gear (250) is fixedly provided on the cylinder (280).

10. A pellet feed drying device according to claim 8, characterized in that, The cylinder (280) is composed of a cylinder body (281), an inlet cover (282) and a cylinder bottom (283). Several material feeding plates (281A) are evenly distributed on the inner wall of the cylinder body (281). The inlet cover (282) is installed in the feed end of the cylinder body (281) in an openable and closable manner. The cylinder bottom (283) is fixedly installed in the discharge end of the cylinder body (281). A cylinder bottom discharge port (283A) is provided on the cylinder bottom (283). A detachable cover plate (283B) is provided on the cylinder bottom discharge port (283A). A second hot air inlet pipe (283C) is provided in the center of the cylinder bottom (283) to connect the outside and inside of the cylinder body (280). The second hot air inlet pipe (283C) is connected to the hot air source through a rotating pipe joint (290).

Images