阅读说明：本技术 苜蓿草捆的高效高产的烘干方法及装备 (Efficient high-yield drying method and device for alfalfa bale ) 是由 许刚 刘昭勇 许亮 魏大福 冯景海 窦效龙 张梓晨 于春堂 许嵩峰 于 2020-07-28 设计创作，主要内容包括：本发明涉及一种苜蓿草捆的高效高产的烘干方法及装备,属于苜蓿草捆干燥设备技术领域。包括以下步骤：(1)给料预热；用于缓冲对插管烘干工位供料,并利用干燥仓内热量对苜蓿草捆预热；(2)插管烘干：插管插入苜蓿草捆,插管上布置有插管孔,插管内通入热风,热风插管底部设有尖头；(3)对流烘干：贯穿苜蓿草捆通入引风对流烘干,苜蓿草捆两侧通过相对布置鼓风罩和吸风罩(2.3),贯穿鼓风罩设有对流鼓风机,贯穿吸风罩设有对流引风机,对流鼓风机和对流引风机相对布置,相互配合,鼓风罩和吸风罩设于苜蓿草捆两侧。本发明烘干效率稿,苜蓿质量好。(The invention relates to a high-efficiency and high-yield drying method and device for alfalfa bale, and belongs to the technical field of alfalfa bale drying equipment. The method comprises the following steps: (1) preheating the feed; the device is used for buffering the feeding of the inserted pipe drying station and preheating the alfalfa bale by using the heat in the drying bin; (2) and (3) drying the insertion tube: the inserting tube is inserted into the alfalfa bundle, the inserting tube hole is arranged on the inserting tube, hot air is introduced into the inserting tube, and the bottom of the hot air inserting tube is provided with a sharp head; (3) convection drying: run through alfalfa bale and let in induced air convection drying, alfalfa bale both sides are through relative arrangement blast hood and the cover (2.3) that induced drafts, run through the blast hood and are equipped with the convection current air-blower, run through the cover that induced drafts and be equipped with the convection current draught fan, and convection current air-blower and convection current draught fan mutual disposition mutually support, and the alfalfa bale both sides are located to the blast hood and the cover that induced drafts. The invention has high drying efficiency and good alfalfa quality.)

1. The drying method for the alfalfa bale with high efficiency and high yield is characterized by comprising the following steps:

(1) preheating the feed; the device is used for buffering the feeding of the inserted pipe drying station and preheating the alfalfa bale by using the heat in the drying bin;

(2) and (3) drying the insertion tube: the inserting tube (1.6) is inserted into the alfalfa bale, an inserting tube hole is arranged on the inserting tube (1.6), hot air is introduced into the inserting tube, and a sharp head is arranged at the bottom of the inserting tube;

(3) convection drying: run through alfalfa bale and let in hot-blast convection drying, alfalfa bale both sides are through relative arrangement blast hood (2.2) and the cover (2.3) that induced drafts, run through blast hood (2.2) and be equipped with convection current air-blower (2.1), it is equipped with convection current draught fan (2.4) to run through cover (2.3) that induced drafts, convection current air-blower (2.1) and convection current draught fan (2.4) relative arrangement, mutually support, the alfalfa bale both sides are located in blast hood (2.2) and the cover (2.3) that induced drafts.

2. The efficient and productive drying method of alfalfa bales according to claim 1, characterized in that the convection direction formed by the suction hood (2.3) and the blowing hood (2.2) is parallel to the insertion tube (1.6).

3. The efficient high-yield drying method of alfalfa bales according to claim 2, characterized in that the insertion tubes (1.6) are arranged horizontally, vertically or obliquely.

4. The method for drying the alfalfa bale with high efficiency and high yield according to any of the claims 1-3, characterized in that the other end of the insertion pipe (1.6) is communicated with a hollow wind collecting cavity (1.5), the upper part of the wind collecting cavity (1.5) is communicated with a pipeline pump (1.2), and the top of the wind collecting cavity (1.5) is connected with a power cylinder.

5. The efficient high-yield drying method for alfalfa bales as claimed in claim 4, characterized in that after convection drying, ordinary drying and latent heat recovery are performed;

ordinary drying: introducing hot air for drying;

latent heat recovery: and recovering the waste heat to obtain the dried alfalfa bale.

6. The drying equipment for the alfalfa bale with high efficiency and high yield is characterized by comprising a drying bin (6), wherein a conveying system (7) is arranged in the drying bin (6), and a feeding preheating section (5), an inserting tube drying section (1) and a convection drying section (2) are sequentially arranged on the conveying system (7);

intubate stoving section (1) is including hollow collection wind chamber (1.5), collection wind chamber (1.5) upper portion intercommunication tubing pump (1.2), and a plurality of intubate (1.6) are arranged side by side to collection wind chamber (1.5) bottom, and collection wind chamber (1.5) and intubate intercommunication, the power cylinder is connected at collection wind chamber top.

7. The efficient and high-yield alfalfa bale drying equipment as claimed in claim 6, characterized in that the insertion tube (1.6) is provided with a plurality of insertion tube holes (1.61), and the bottom of the insertion tube (1.6) is provided with an insertion tube tip (1.62).

8. Drying equipment for alfalfa bales with high efficiency and high yield according to claim 6 or 7, characterized in that the insertion tubes (1.6) are arranged horizontally, vertically or obliquely.

9. The efficient high-yield alfalfa bale drying equipment of claim 8, characterized in that the convection drying section comprises a blast hood (2.2) and a suction hood (2.3) arranged opposite each other, a convection blower (2.1) is provided through the blast hood (2.2), and a convection draft fan (2.4) is provided through the suction hood (2.3); the convection direction formed by the induced draft hood (2.3) and the blast hood (2.2) is parallel to the intubation tube (1.6).

10. Efficient and high-yield alfalfa bale drying equipment according to claim 9, characterized in that the convection blower (2.1) inlet is arranged towards the discharge end; the air outlet of the convection induced draft fan (2.4) is arranged towards the feeding end, and the blast hood (2.2) and the air suction hood (2.3) are arranged at two sides of the material on the conveying system (7).

Technical Field

The invention relates to a high-efficiency and high-yield drying method and device for alfalfa bale, and belongs to the technical field of alfalfa bale drying equipment.

Background

The national standard of living uses meat, eggs and milk as a benchmark, and the alfalfa grass called the king of pasture has close related influence on the yield and quality of the meat, eggs and milk. Although the planting area of the high-quality alfalfa in China is not small, the high-quality commercial alfalfa is not available, and the high-quality alfalfa mainly depends on import, which directly affects the food safety problem of people in China. The main reasons that the domestic alfalfa in China cannot produce high-quality alfalfa are 'eating by the day', natural airing, falling off of leaves with high CP content in the airing, and the respiratory metabolism of cells and the action of biological enzymes and the corrosion or deterioration of harmful microorganisms in a complex physiological and biochemical process, so that the preservation rate of alfalfa protein and comprehensive nutrition is reduced, and the CP retention rate of the alfalfa in 72 hours is only 60%. Generally, the harvesting and airing time of first-batch alfalfa in northern western China is 3-4 sunny days, if the first-batch alfalfa is not in the condition, high-quality pasture is difficult to air, the longer the drying and dehydrating period is, the lower the nutrition CP of the alfalfa is, and otherwise, the shorter the drying and dehydrating period is, the higher the CP content is. Therefore, the drying is the shortest selection compared with the natural drying and dehydration period, and is the only method for solving the problem of no eating by the day.

The existing pasture grass drying machine is of a drying oven mesh belt type and a rotary cylinder type, such as a CN 205352002U alfalfa mesh belt drying machine and the like, which are mostly in a drying mode of scattered grass sections, the general yield is low, the heat efficiency is not more than 30 percent and the like, the world alfalfa commodities are mainly circulated in a bale packaging mode, the harvest season time of the alfalfa production place is the pistil period or the initial flowering period, the time is short about 15 days, and the yield is high, such as 100 more than ten thousand tons of hay are harvested once per 350 ten thousand acres in Ningxia Guyuan county, the existing drying equipment is mostly high, the maximum ten tons of hay are produced per day, and the method is almost a cup waterwheel salary, so that the high-yield and high-efficiency alfalfa bale drying method and equipment are a choice for improving the quality level of alfalfa in China at present.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the high-efficiency and high-yield drying method and the equipment for the alfalfa bale are provided, the drying efficiency is high, and the alfalfa quality is good.

The high-efficiency high-yield drying method for the alfalfa bale comprises the following steps of:

(1) preheating the feed; the device is used for buffering the feeding of the inserted pipe drying station and preheating the alfalfa bale by using the heat in the drying bin;

(2) and (3) drying the insertion tube: the inserting tube is inserted into the alfalfa bundle, the inserting tube hole is arranged on the inserting tube, hot air is introduced into the inserting tube, and the bottom of the inserting tube is provided with a sharp head;

(3) convection drying: run through alfalfa bale and let in hot-blast convection drying, alfalfa bale both sides are through the relative arrangement blast hood and the cover that induced drafts, run through the blast hood and are equipped with the convection current air-blower, run through the cover that induced drafts and be equipped with the convection current draught fan, and convection current air-blower and convection current draught fan mutual disposition mutually support, and the alfalfa bale both sides are located to the blast hood and the cover that induced drafts.

Preferably, the convection direction formed by the air suction hood and the air blowing hood is parallel to the intubation tube;

preferably, the cannula is arranged horizontally, vertically or obliquely.

Preferably, the other end of the intubation is communicated with a hollow air collection cavity, the upper part of the air collection cavity is communicated with a pipeline pump, and the top of the air collection cavity is connected with a power cylinder.

Preferably, the power cylinder is a hydraulic cylinder, an air cylinder or an electric cylinder.

Preferably, convection drying is followed by ordinary drying and latent heat recovery;

ordinary drying: introducing hot air for drying;

latent heat recovery: and recovering the waste heat to obtain the dried alfalfa bale.

The drying equipment for the alfalfa bale with high efficiency and high yield comprises a drying bin, wherein a conveying system is arranged in the drying bin, and a feeding preheating section, an inserting pipe drying section and a convection drying section are sequentially arranged on the conveying system; the intubation drying section comprises a hollow air collecting cavity, the upper part of the air collecting cavity is communicated with a pipeline pump, a plurality of intubation tubes are arranged at the bottom of the air collecting cavity side by side, the air collecting cavity is communicated with the intubation tubes, and the top of the air collecting cavity is connected with a power cylinder.

Preferably, the power cylinder is a hydraulic cylinder, an air cylinder or an electric cylinder.

Preferably, the air collecting cavity, the pipeline pump and the intubation tube are introduced with hot air.

Preferably, a plurality of cannula holes are arranged on the cannula, and a cannula tip is arranged at the bottom of the cannula.

Preferably, the power cylinder body end is fixedly connected with the support, and the power cylinder piston rod is connected with the air collecting cavity.

Preferably, the bracket is provided with an inwards concave arc-shaped guide plate corresponding to the corner of the wind collecting cavity.

Preferably, the cannula is arranged horizontally, vertically or obliquely.

Preferably, the convection drying section comprises a blast hood and an air suction hood which are oppositely arranged, a convection blower penetrates through the blast hood, and a convection induced draft fan penetrates through the air suction hood; the convection direction formed by the induced draft cover and the blast cover is parallel to the intubation tube.

Preferably, the air inlet of the convection blower is arranged corresponding to the feeding end; the air outlet of the convection induced draft fan is arranged corresponding to the discharge end, and the blast hood and the air suction hood are arranged on two sides of the material on the conveying system.

Preferably the conveying system is a roller-row conveying system, a mesh belt conveying system or a rail car conveying system. The rail car conveying system comprises a guide rail, the guide rail is arranged in the drying bin, the rail car is arranged on the guide rail, and the rail car carries the alfalfa bales.

Preferably, the output end of the convection drying section is provided with a common drying section;

the clean heat source system is connected in parallel with the intubation drying section, the convection drying section and the common drying section;

the clean heat source system is communicated with the pipeline pump;

the clean heat source system is communicated with the air inlet end of the convection blower;

and the common drying section is communicated with a clean heat source system through a drying blower.

Preferably, the feed preheating section is communicated with a dehumidification heat exchange system, and the other end of the dehumidification heat exchange system is communicated with the outside; the dehumidification heat exchange system is communicated with a branch of the clean heat source system. The alfalfa bale has not been through the stoving in the feed preheating section, and the moisture is very heavy, and the temperature itself is very high in the dry storehouse again, through let in the interior dehumidification heat transfer system of dry storehouse with the new trend, to behind the heat exchange heating of one way of the clean heat source system in the dehumidification heat transfer system, new trend cooling moisture condensation, also called comdenstion water, and the noncondensation gas is discharged.

Preferably, the clean heat source system is a solar heat collector, an electric heat pump, a natural gas hot blast stove or a biomass hot blast stove.

Preferably, the clean heat source system is a solar heat collector, and is arranged in series with one or two of an electric heat pump, a natural gas hot blast stove or a biomass hot blast stove.

Preferably, the output end of the common drying section is provided with a latent heat recovery section;

the discharge end of the latent heat recovery section is provided with a first air blower and a second air blower, and the input end of the latent heat recovery section is communicated with a clean heat source system through a draught fan.

Compared with the prior art, the drying method for the alfalfa bale with high efficiency and high yield has the beneficial effects that:

1. according to the method, the inserting tube drying and the convection drying are sequentially arranged, after the alfalfa bale is dried by inserting tube loosening, the convection drying is continuously carried out subsequently, the drying efficiency is high, the drying effect is high, the dehydration rate of the alfalfa bale in a short time is high, the alfalfa bale is dried efficiently and highly, and the alfalfa bale drying quality is improved.

2. Through setting up feed preheating section and ordinary dry section, utilize natural heat in the dry storehouse, preheat the alfalfa bale before the intubate is dried to and the convection current is dried the back bale and is carried out the drying, can make full use of heat, and improved the dehydration rate, improved drying effect.

Compared with the prior art, the drying equipment for the alfalfa bale with high efficiency and high yield has the beneficial effects that:

1. according to the invention, the pipe inserting drying section is arranged, the alfalfa bale is subjected to pipe inserting loosening, and hot air is introduced for drying, so that the drying efficiency and the drying effect are greatly improved; the dehydration rate of the alfalfa grass bundles is high in a short time;

2. through setting up the blast hood and the cover that induced drafts, the cooperation is dried to alfalfa bale ventilation convection current, and it is loose to have dried through the intubate based on alfalfa bale, and convection current stoving further dries alfalfa bale, and drying efficiency is high, and it is effectual to dry, and alfalfa bale dehydration rate in the short time is high, has realized alfalfa bale high-efficient high yield of drying, has improved alfalfa bale oven-dry mass.

3. Through setting up feed preheating section and ordinary dry section, utilize natural heat in the dry storehouse, preheat the alfalfa bale before the intubate is dried to and the convection current is dried the back bale and is carried out the drying, can make full use of heat, and improved the dehydration rate, improved drying effect.

Drawings

Figure 1 is a schematic structural diagram of an embodiment of the high-efficiency high-yield drying equipment for the alfalfa grass bales,

FIG. 2 is a schematic perspective view of the drying section with inserted rods,

FIG. 3 is a schematic front view of the inserted link drying section,

figure 4 is a schematic cross-sectional view a-a of figure 3,

figure 5 is a schematic view of the structure of the cannula,

fig. 6 is a schematic structural diagram of a convection drying section.

The arrows in the figure indicate the direction of air flow.

In the figure: 1. the device comprises an inserted bar drying section 2, a convection drying section 3, a common drying section 4, a latent heat recovery section 5, a feeding preheating section 6, a drying bin 7, a conveying system 8, a solar heat collector 9, an electric energy heat pump 10 and a dehumidification heat exchange system;

1.1, a bracket 1.2, a pipeline pump 1.3, a guide plate 1.4, a hydraulic cylinder 1.5, a wind collecting cavity 1.6 and a cannula;

1.61, cannula hole 1.62, cannula tip;

2.1, a convection blower 2.2, a blast hood 2.3, a suction hood 2.4 and a convection induced draft fan;

3.1, drying a blower;

4.1, a first blower 4.2, a second blower 4.3 and an induced draft fan.

Detailed Description

The technical solution in the embodiments of the present invention will be further clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention: