Continuous drying device for pig feed production
By using a multi-layer conveyor belt and hot air box design in the pig feed drying device, combined with pressure rollers and electric heating tubes, the problems of clumping and clogging are solved, achieving uniform drying and efficient production of pig feed.
Patent Information
- Application Number
- CN202520327264.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-27
AI Technical Summary
Existing pig feed drying devices are prone to clumping during the turning process, leading to blockages and uneven drying, which affects the drying effect.
Using three conveyor belts and hot air boxes arranged in opposite directions, combined with pressure rollers and electric heating tubes, continuous and uniform drying is achieved through crushing and hot air drying, avoiding clumping and blockage.
This technology enables uniform drying of pig feed, improves drying efficiency, avoids clumping and clogging, and ensures continuous operation of the equipment.
Smart Images

Figure CN223795736U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pig feed production technology, and in particular to a continuous drying device for pig feed production. Background Technology
[0002] With the development of the livestock industry, the production of pig feed has been increasing year by year. In particular, with the increasing demands for pig health and production efficiency, the quality of pig feed has become increasingly important. Pig feed is usually composed of a variety of raw materials, such as corn, soybean meal, vitamins, and minerals. These raw materials, after being mixed and processed, form a relatively moist feed product. Under these circumstances, the drying process of the feed becomes crucial.
[0003] An existing high-efficiency feed drying device (publication number: CN213300760U) has at least the following drawbacks: Although the above design adjusts the conveying thickness of the feed by adjusting the thickness plate and uses the turning rod to turn the conveyed feed, the wet pig feed is prone to caking during processing. When the feed is placed on the conveyor belt, the caking feed can easily block the thickness adjustment gap between the thickness plate and the conveyor belt, resulting in uneven feed conveying thickness. In addition, when the turning rod turns the feed, the feed is prone to accumulate at the turning rod, further affecting the uniformity of the drying process and resulting in poor drying effect of the pig feed. Therefore, we propose this utility model. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a continuous drying device for pig feed production.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A continuous drying device for pig feed production includes a drying chamber. A feeding box is fixedly connected to the top surface of the drying chamber. The drying chamber is equipped with a drying structure for drying pig feed. The drying structure includes three conveyor belt bodies fixed inside the drying chamber. The three conveyor belt bodies are arranged vertically, and the conveying directions of two adjacent conveyor belt bodies are opposite. Hot air boxes are fixedly connected to both sides of the drying chamber. Several electric heating tubes are fixedly installed inside each of the two hot air boxes. A conveying pipe is fixedly connected to the side of the two hot air boxes that is close to each other. An air inlet pipe is fixedly connected between the two conveying pipes.
[0007] As a further embodiment of this utility model, the feeding box is internally equipped with two pressure rollers, one end of each pressure roller penetrates one side of the inner wall of the feeding box and is fixed with a gear, the two gears mesh, a motor is fixed on one side of the feeding box, and the output end of the motor penetrates one side of the feeding box and is fixed to one end of the pressure roller located on the right side.
[0008] As a further embodiment of this utility model, a collection hopper is slidably inserted into one side of the drying box, the collection hopper is located below the bottom conveyor belt body, and an inclined plate is fixed to the inner bottom surface of the collection hopper.
[0009] As a further embodiment of this utility model, three shovels are fixed on one side of the inner wall of the drying box, and the top surfaces of the three shovels are all in contact with the bottom surface of the conveyor belt body.
[0010] As a further embodiment of this utility model, an exhaust pipe is fixedly connected to one side of the drying box, and a mesh is fixed to one end of the exhaust pipe and the inside of the hot air box.
[0011] As a further embodiment of this utility model, scrapers are fixed on both sides of the inner wall of the feeding box, and one side of each scraper is in contact with the outer circular wall of the two pressure rollers.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This drying device, through its drying structure, allows workers to feed pigs into the feeding box, then start the motor to drive the right-side pressure roller to rotate. Gear transmission causes the two pressure rollers to rotate in opposite directions, pre-crushing the moist feed and preventing clumps from entering the drying chamber. The crushed feed falls evenly into the drying chamber and spreads on the uppermost conveyor belt. The air inlet pipe connects to an external fan, and hot air is delivered to the drying chamber through a hot air box. Electric heating elements heat the air for hot air drying. The feed naturally tumbles due to the height differences of the multiple conveyor belts, ensuring even drying in the hot air box without the need for turning plates, guaranteeing continuous and uniform drying. The crushing action of the pressure rollers effectively prevents the accumulation and blockage of clumps, improving drying efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a continuous drying device for pig feed production proposed in this utility model;
[0015] Figure 2 This is a schematic diagram showing the disassembled structure of a continuous drying device for pig feed production proposed in this utility model.
[0016] Figure 3 This is a schematic diagram of the disassembled structure of the drying box in a continuous drying device for pig feed production proposed in this utility model.
[0017] Figure 4 This is a schematic diagram showing the disassembled structure of the feeding box of a continuous drying device for pig feed production proposed in this utility model.
[0018] In the diagram: 1. Drying box; 2. Feeding box; 201. Conveyor belt body; 202. Hot air box; 203. Electric heating tube; 204. Conveying pipe; 205. Air inlet pipe; 206. Pressure roller; 207. Gear; 3. Collection hopper; 301. Inclined plate; 4. Shovel plate; 5. Exhaust pipe; 501. Partition net; 6. Scraper. Detailed Implementation
[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] Reference Figures 1-4 A continuous drying device for pig feed production includes a drying chamber 1. A feeding box 2 is fixedly connected to the top surface of the drying chamber 1. The drying chamber 1 is equipped with a drying structure for drying pig feed. The drying structure includes three conveyor belt bodies 201 fixed inside the drying chamber 1. The three conveyor belt bodies 201 are arranged vertically, and the conveying directions of two adjacent conveyor belt bodies 201 are opposite. Hot air boxes 202 are fixedly connected to both sides of the drying chamber 1. Several electric heating tubes 203 are fixedly fixed inside each of the two hot air boxes 202. A conveying pipe 204 is fixedly connected to the side of the two hot air boxes 202 that is close to each other. An air inlet pipe 205 is fixedly connected between the two conveying pipes 204.
[0023] In this embodiment, two pressure rollers 206 are rotatably arranged inside the feeding box 2. One end of each pressure roller 206 penetrates one side of the inner wall of the feeding box 2 and is fixed with a gear 207. The two gears 207 mesh. A motor is fixed to one side of the feeding box 2. The output end of the motor penetrates one side of the feeding box 2 and is fixed to one end of the right-side pressure roller 206. With the setting of the drying structure, after the worker puts the pig feed into the feeding box 2, he starts the motor. The motor drives the right-side pressure roller 206 to rotate. Through the transmission of the two gears 207, the two pressure rollers 206 rotate in opposite directions, thereby pre-crushing the wet pig feed in the feeding box 2 to prevent lumpy feed from entering the drying box 1. The crushed feed then falls into the drying box 1 and is evenly spread on the uppermost conveyor belt body 201 for conveying. The worker connects the air inlet pipe 205 to the external fan equipment and delivers hot air to the drying box 1 through the hot air box 202. The electric heating tube 203 heats the air inside the hot air box 202, thereby drying the feed on the upper conveyor belt body 201 and the middle conveyor belt body 201 with hot air. On the upper conveyor belt body 201, the feed gradually falls into the middle conveyor belt body 201 during the conveying process. As the feed falls, it becomes looser and is dried evenly by the hot air from the right hot air box 202. Similarly, the feed on the middle conveyor belt body 201 falls into the lower conveyor belt body 201 during the conveying process. The feed becomes loose again and is dried by the hot air from the left hot air box 202. Due to the height difference of the multiple conveyor belts, the feed naturally turns over during the conveying process without the need for additional turning plates, thus achieving a more uniform and continuous drying effect. In addition, the crushing treatment of the feed by the pressure roller 206 effectively avoids the accumulation and blockage of clumps of feed during the drying process, further improving the drying effect and ensuring the overall drying efficiency of the equipment.
[0024] In this embodiment, a collection hopper 3 is slidably inserted into one side of the drying box 1. The collection hopper 3 is located below the bottom conveyor belt body 201. An inclined plate 301 is fixed to the bottom surface of the collection hopper 3. When the feed is dried, it falls from the bottom conveyor belt body 201 into the collection hopper 301. The inclined plate 3 buffers and guides the falling feed to prevent the feed from accumulating in the landing area of the collection hopper 3.
[0025] In this embodiment, three shovels 4 are fixed on one side of the inner wall of the drying box 1. The top surfaces of the three shovels 4 are all in contact with the bottom surface of the conveyor belt body 201. When the feed is conveyed between the three conveyor belt bodies 201, the shovels 4 scrape off the feed adhering to the surface of the conveyor belt body 201 to prevent the feed from adhering to the surface of the conveyor belt body 201.
[0026] In this embodiment, an exhaust pipe 5 is fixedly connected to one side of the drying box 1. A partition net 501 is fixed to one end of the exhaust pipe 5 and inside the hot air box 202. The exhaust pipe 5 can discharge the hot air carrying moisture in the drying box 1 to ensure the drying effect of the feed. At the same time, the partition net 501 can prevent the feed from entering the hot air box 202 and the exhaust pipe 5.
[0027] In this embodiment, scrapers 6 are fixed on both sides of the inner wall of the feeding box 2. One side of each scraper 6 is in contact with the outer circular wall of the two pressure rollers 206. The scrapers 6 can prevent wet feed from adhering to the surface of the pressure rollers 206.
[0028] Working principle: When drying pig feed, the worker puts the pig feed into the feeding box 2 and starts the motor. The motor drives the right-side pressure roller 206 to rotate. Through the transmission of two gears 207, the two pressure rollers 206 rotate in opposite directions, thereby pre-crushing the wet pig feed in the feeding box 2 to prevent lumps of feed from entering the drying box 1. The crushed feed then falls into the drying box 1 and is evenly spread on the uppermost conveyor belt body 201 for conveying. The worker connects the air inlet pipe 205 to the external fan equipment and... The superheated air box 202 delivers hot air to the drying chamber 1. The electric heating element 203 is activated to heat the air inside the hot air box 202, thereby drying the feed on the upper conveyor belt body 201 and the middle conveyor belt body 201. During the conveying process, the feed on the upper conveyor belt body 201 gradually falls into the middle conveyor belt body 201. As the feed falls, it becomes looser and is simultaneously dried evenly by the hot air from the right-side hot air box 202. Similarly, the feed on the middle conveyor belt body 201 falls into the lower conveyor belt body 1 during the conveying process. The feed is loosened again by the conveyor belt body 201 and dried by the hot air from the left hot air box 202. Due to the height difference of multiple conveyor belts, the feed is naturally turned over during the conveying process without the need for additional turning plates, thus achieving a more uniform and continuous drying effect. In addition, the crushing treatment of the feed by the pressure roller 206 effectively avoids the accumulation and blockage of clumps of feed during the drying process, further improving the drying effect. After the feed is dried, it falls from the bottom conveyor belt body 201 into the collection hopper 301. The inclined plate 3 buffers and guides the falling feed to prevent the feed from accumulating in the landing area of the collection hopper 3. When the feed is conveyed between the three conveyor belt bodies 201, the shovel plate 4 scrapes off the feed adhering to the surface of the conveyor belt body 201 to prevent the feed from adhering to the surface of the conveyor belt body 201. The exhaust pipe 5 can discharge the hot air carrying moisture in the drying box 1 to ensure the drying effect of the feed. At the same time, the partition net 501 can prevent the feed from entering the hot air box 202 and the exhaust pipe 5. The scraper 6 can prevent wet feed from adhering to the surface of the pressure roller 206.
[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A continuous drying device for pig feed production, comprising a drying chamber (1), characterized in that: The top surface of the drying box (1) is connected to and fixed with a feeding box (2). The interior of the drying box (1) is provided with a drying structure for drying pig feed. The drying structure includes three conveyor belt bodies (201) fixed inside the drying box (1). The three conveyor belt bodies (201) are arranged vertically. The conveying directions of two adjacent conveyor belt bodies (201) are opposite. Hot air boxes (202) are connected to and fixed on both sides of the drying box (1). Several electric heating tubes (203) are fixed inside the two hot air boxes (202). A conveying pipe (204) is connected to and fixed on the side of the two hot air boxes (202) that is close to each other. An air inlet pipe (205) is connected to and fixed between the two conveying pipes (204).
2. The continuous drying device for pig feed production according to claim 1, characterized in that, The feeding box (2) is equipped with two pressure rollers (206) inside. One end of each pressure roller (206) passes through one side of the inner wall of the feeding box (2) and is fixed with a gear (207). The two gears (207) mesh. A motor is fixed on one side of the feeding box (2). The output end of the motor passes through one side of the feeding box (2) and is fixed to one end of the pressure roller (206) on the right side.
3. The continuous drying device for pig feed production according to claim 2, characterized in that, A collection hopper (3) is slidably inserted into one side of the drying box (1). The collection hopper (3) is located below the bottom conveyor belt body (201). An inclined plate (301) is fixed to the bottom surface of the collection hopper (3).
4. The continuous drying device for pig feed production according to claim 3, characterized in that, Three shovels (4) are fixed on one side of the inner wall of the drying box (1), and the top surfaces of the three shovels (4) are all in contact with the bottom surface of the conveyor belt body (201).
5. A continuous drying device for pig feed production according to claim 4, characterized in that, The drying box (1) is connected to an exhaust pipe (5) on one side, and a mesh (501) is fixed at one end of the exhaust pipe (5) and inside the hot air box (202).
6. The continuous drying device for pig feed production according to claim 5, characterized in that, Scrapers (6) are fixed on both sides of the inner wall of the feeding box (2), and one side of each scraper (6) is in contact with the outer circular wall of the two pressure rollers (206).
Citation Information
Patent Citations
Drying device with high drying efficiency for feed production
CN213300760U