Alfalfa bale drying device

Abstract

The utility model provides an alfalfa bale drying device which comprises a negative pressure box, a U-shaped groove is defined by a first heating roller and a second heating roller below the negative pressure box, the first heating roller is laid in the conveying direction to form a roller conveyor used for conveying bales, and a partition plate capable of sliding up and down is arranged in the negative pressure box. A vertical pipe capable of extending out of the bottom wall of the negative pressure box is vertically fixed to the lower end of the partition plate, the upper end of the vertical pipe is communicated with the upper portion of the partition plate, an air draft hole is formed in the side wall of the vertical pipe, the top of the negative pressure box is communicated with an exhaust pipe, and a negative pressure fan is installed on the exhaust pipe. According to the alfalfa bale drying device, if mechanical drying needs to be conducted after alfalfa is naturally dried, baling can be conducted firstly, then the bale is directly dried through heating and suction, the water content in the bale can be reduced, the risk that alfalfa leaves are broken and fall off is avoided, and the quality of the alfalfa is improved.

Description

Technical Field

[0001] This application relates to alfalfa bale drying technology, and more particularly to an alfalfa bale drying device. Background Technology

[0002] After harvesting, alfalfa is processed through drying or silage to reduce moisture, preserve nutrients, and extend storage time. Currently, the most common method is natural drying, where the hay is immediately spread out to dry in the field after harvesting, and frequently turned over to quickly reduce moisture before being rake and baled.

[0003] Natural drying of alfalfa hay requires suitable weather and measures to protect it from rain and dew. It also needs to be dried and baleed within a short period. If the weather does not provide a suitable window of opportunity, it cannot be thoroughly dried, resulting in a higher moisture content in the alfalfa hay after drying, making it prone to becoming damp again after baleing.

[0004] Currently, when alfalfa hay is not completely dried naturally, it needs to be transported to a drum dryer or box dryer for further mechanical drying before being baleed. However, naturally dried alfalfa hay has a lower moisture content, and if it is transported directly without baleing, the leaves are prone to breakage and loss during transportation and drying, affecting its quality. Utility Model Content

[0005] This application provides an alfalfa bale drying device to solve the problem that existing alfalfa bales are prone to leaf breakage and fall off when mechanically dried after incomplete natural drying.

[0006] This application provides an alfalfa bale drying device, including a negative pressure box. The lower part of the negative pressure box is surrounded by a U-shaped groove formed by heating roller one and heating roller two. Heating roller one is laid along the conveying direction to form a roller conveyor for conveying bales. The negative pressure box is provided with a partition that can slide up and down. The lower end of the partition is vertically fixed with a vertical pipe that can extend from the bottom wall of the negative pressure box. The upper end of the vertical pipe is connected to the upper part of the partition. The side wall of the vertical pipe is provided with a ventilation hole. The top of the negative pressure box is connected to an exhaust pipe, and a negative pressure fan is installed on the exhaust pipe.

[0007] Optionally, the partition is horizontally disposed inside the negative pressure box and slidably connected to its side wall. A screw threaded through the partition is vertically disposed inside the negative pressure box and is driven by a motor installed on the negative pressure box.

[0008] Optionally, a U-shaped exhaust box is provided on the outside of the U-shaped groove formed by the heating roller one and the heating roller two. The exhaust box has an exhaust port on the side facing the straw bale, and the exhaust box is connected to a blower.

[0009] Optionally, the blower is installed inside the drying filter box, with one end of the drying filter box connected to the exhaust box and the other end equipped with a filter device.

[0010] Optionally, the bottom of the vertical tube is provided as a spike.

[0011] The alfalfa bale drying device provided in this application allows for the following mechanical drying: alfalfa bales can be baled first and then dried directly through heating and suction. This reduces the moisture content of the bales, avoids the risk of alfalfa leaves breaking and falling off, and improves the quality of alfalfa. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a front view of an alfalfa bale drying apparatus provided in an embodiment of this application;

[0014] Figure 2 Alfalfa bale drying apparatus provided in one embodiment of this application Figure 1 Top view;

[0015] Figure 3 Alfalfa bale drying apparatus provided in one embodiment of this application Figure 1 A sectional view;

[0016] Figure 4 Alfalfa bale drying apparatus provided in one embodiment of this application Figure 2 A sectional view.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Heating roller 1; 2. Heating roller 2; 3. Column; 4. Negative pressure box; 5. Partition plate; 6. Vertical pipe; 7. Screw; 8. Motor; 9. Exhaust pipe; 10. Negative pressure fan; 11. Exhaust box; 12. Exhaust outlet; 13. Drying filter box; 14. Blower; 15. Straw bale. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0020] like Figures 1-4 As shown, one embodiment of this application provides an alfalfa bale drying device, including a negative pressure box 4. A U-shaped trough is formed below the negative pressure box 4 by heating roller 1 and heating roller 2, which can accommodate bales 15 entering and passing through. Heating roller 1 is laid along the conveying direction to form a roller conveyor for conveying the bales 15. Both ends of heating roller 1 are connected to the conveyor for the bales 15 to enter and exit. A partition 5 that can slide up and down is provided inside the negative pressure box 4. The edge of the partition 5 is sealed against the inner wall of the negative pressure box 4 and slides up and down via an electric push rod, hydraulic rod, or screw. A vertical pipe 6 that can extend from the bottom wall of the negative pressure box 4 is vertically fixed to the lower end of the partition 5. The upper end of the vertical pipe 6 has an opening, passes through the partition 5, and communicates with the upper part of the partition 5. An exhaust hole is provided on the side wall of the vertical pipe 6, and an exhaust pipe 9 is connected to the top of the negative pressure box 4. A negative pressure fan 10 is installed on the exhaust pipe 9.

[0021] In use, the bale 15 is conveyed to the upper end of the heating roller 1 by a conveyor, and the bale 15 is heated by the U-shaped groove formed by the heating roller 1 and the heating roller 2. At the same time, the partition 5 inside the negative pressure box 4 moves downward, and the vertical pipe 6 extends downward and is inserted vertically into the interior of the bale 15. After the negative pressure fan 10 is started, an airflow is formed that enters through the vertical pipe 6 and is discharged outward from the exhaust pipe 9 along the negative pressure box 4.

[0022] The vertical pipe 6 inserted inside the hay bale 15 draws in the water vapor generated during heating through the exhaust vent on the side wall. After entering the vertical pipe 6, the water vapor is discharged from the exhaust pipe 9 through the airflow formed by the negative pressure fan 10 along the negative pressure box 4. After the hay bale 15 is dried, the partition 5 moves upward to pull out the vertical pipe 6 and retract it into the negative pressure box 4. The hay bale 15 in the U-shaped trough is removed by the roller conveyor formed by the heating roller 1.

[0023] In this embodiment, after the alfalfa hay is naturally dried, it can be baleed first, and then a U-shaped groove is formed by the confluence of heating roller 1 and heating roller 2 to heat the side walls and bottom of the bale 15. At the same time as heating, a vertical pipe 6 is inserted into the interior of the bale 15 to draw in moisture, forming an airflow from the outside to the inside to absorb the moisture generated inside the bale 15 during heating, and then discharge it through the exhaust pipe 9.

[0024] After the alfalfa hay is naturally dried, it is bundled. Directly drying the bales reduces the moisture content inside the bales and avoids the risk of the alfalfa leaves breaking and falling off, thus improving the quality of the alfalfa hay.

[0025] In one possible implementation, the partition 5 is horizontally disposed inside the negative pressure box 4 and slidably connected to its side wall. The negative pressure box 4 is vertically disposed with a screw 7 threaded through the partition 5. The screw 7 is driven by a motor 8 installed on the negative pressure box 4.

[0026] The lead screw 7 is vertically installed inside the negative pressure box 4 and rotatably connected to it. The upper end of the lead screw 7 passes through the top wall of the negative pressure box 4 and is fixed to the output shaft of the motor 8. By rotating the lead screw 7 through the motor 8, the partition 5 slides up and down along the inner wall of the negative pressure box 4, thereby driving the vertical tube 6 to move up and down to complete the action of inserting or removing the straw bale 15.

[0027] In one possible implementation, a U-shaped exhaust box 11 is provided on the outside of the U-shaped groove formed by the heating roller 1 and the heating roller 2. The exhaust box 11 has an exhaust port 12 on the side facing the hay bale 15. The exhaust box 11 is connected to the blower 14.

[0028] By setting up an exhaust box 11 to blow air from the exhaust port 12 to the straw bale 15, and cooperating with the vertical pipe 6 to draw air from inside the straw bale 15, the airflow formed from the outside to the inside of the straw bale 15 can be further increased, thereby improving the drying effect and drying efficiency of the straw bale 15.

[0029] In one possible implementation, the blower 14 is installed inside the drying filter box 13, with one end of the drying filter box 13 connected to the exhaust box 11 and the other end of the drying filter box 13 equipped with a filter device.

[0030] The drying filter box 13 can effectively filter moisture and impurities in the air, and provides cleaner airflow to the drying process of hay bales 15 through the exhaust box 11 and exhaust port 12, thereby improving the quality of hay.

[0031] In one possible implementation, the bottom of the vertical tube 6 is provided as a spike.

[0032] The vertical tube 6 with spikes can be inserted more smoothly into the inside of the hay bale 15 when it is moved downward out of the negative pressure box 4.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An alfalfa bale drying device, comprising a negative pressure chamber (4), characterized in that: The negative pressure box (4) is surrounded by a U-shaped groove formed by heating roller one (1) and heating roller two (2). Heating roller one (1) is laid along the conveying direction to form a roller conveyor for conveying bales (15). The negative pressure box (4) is provided with a partition (5) that can slide up and down. The lower end of the partition (5) is vertically fixed with a vertical pipe (6) that can extend from the bottom wall of the negative pressure box (4). The upper end of the vertical pipe (6) is connected to the upper part of the partition (5). The side wall of the vertical pipe (6) is provided with a ventilation hole. The top of the negative pressure box (4) is connected to an exhaust pipe (9). A negative pressure fan (10) is installed on the exhaust pipe (9).

2. The alfalfa bale drying device according to claim 1, characterized in that: The partition (5) is horizontally installed inside the negative pressure box (4) and slidably connected to its side wall. The negative pressure box (4) is vertically provided with a screw (7) threaded through the partition (5). The screw (7) is driven by a motor (8) installed on the negative pressure box (4).

3. The alfalfa bale drying device according to claim 1, characterized in that: The U-shaped exhaust box (11) is provided on the outside of the U-shaped groove formed by the heating roller 1 (1) and the heating roller 2 (2). The exhaust box (11) has an exhaust port (12) on the side facing the straw bale (15). The exhaust box (11) is connected to the blower (14).

4. The alfalfa bale drying device according to claim 3, characterized in that: The blower (14) is installed inside the drying filter box (13). One end of the drying filter box (13) is connected to the exhaust box (11), and the other end is equipped with a filter device.

5. The alfalfa bale drying apparatus according to any one of claims 1-4, characterized in that: The bottom of the vertical tube (6) is provided with a spike.

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