阅读说明：本技术 一种节能型农产品干燥设备 (Energy-saving agricultural product drying equipment ) 是由 郑慧慧 于 2021-05-31 设计创作，主要内容包括：本发明涉及农产品加工技术领域,且公开了一种节能型农产品干燥设备,包括干燥炉、传输带、除湿机和热风炉,所述干燥炉和传输带活动连接,所述除湿机与热风炉通过导管连通,所述干燥炉的内部固定安装有分隔板,所述干燥炉的底部且位于分隔板的下方开设有进出口。通过干燥炉和压板的设置,使得在向干燥炉内部通入一定量的热气后,利用气压伸缩杆对压板进行下压,增加干燥气体密度,提高压强,进而快速提高气体的温度,对农产品进行快速升温,加快农产品中水分蒸发,提高农产品的干燥速度,同时,通过微波发生器的设置,使得可以对农产品的内外一起加热,提升农产品的内部温度,形成内部温度差,进而进一步加快干燥速度。(The invention relates to the technical field of agricultural product processing, and discloses energy-saving agricultural product drying equipment which comprises a drying furnace, a transmission belt, a dehumidifier and a hot blast stove, wherein the drying furnace is movably connected with the transmission belt, the dehumidifier is communicated with the hot blast stove through a guide pipe, a partition plate is fixedly arranged in the drying furnace, and an inlet and an outlet are formed in the bottom of the drying furnace and below the partition plate. Through the setting of drying furnace and clamp plate, make after letting in a certain amount of steam to drying furnace inside, utilize the atmospheric pressure telescopic link to push down the clamp plate, increase dry gas density, improve pressure, and then improve gaseous temperature fast, carry out rapid heating up to agricultural product, accelerate moisture evaporation in agricultural product, improve the drying rate of agricultural product, and simultaneously, through microwave generator's setting, make and heat the inside and outside of agricultural product together, promote the inside temperature of agricultural product, form inside temperature difference, and then further accelerate drying rate.)

1. The utility model provides an energy-saving agricultural product drying equipment, includes drying oven (1), transmission band (9), dehumidifier and hot-blast furnace, drying oven (1) and transmission band (9) swing joint, the dehumidifier passes through pipe intercommunication, its characterized in that with the hot-blast furnace: the inside fixed mounting of drying furnace (1) has division board (2), exit (3) have been seted up to the bottom of drying furnace (1) and the below that is located division board (2), clamp plate (4) have been cup jointed in the inside of drying furnace (1) and the top activity that is located division board (2), outer container (5) have been fixedly cup jointed in the outside of drying furnace (1), the top fixed mounting of outer container (5) has air pressure telescopic link (6), the bottom of air pressure telescopic link (6) is connected with the last fixed surface of clamp plate (4), the even fixedly connected with return spring (7) in bottom surface of clamp plate (4), even fixed mounting has shrouding (11) on transmission band (9), shrouding (11) and exit (3) swing joint, the bottom of drying furnace (1) and the below fixed mounting that is located transmission band (9) have inlet port (13), the air inlet hole (13) penetrates through the outer box (5) and is communicated with the hot blast stove.

2. An energy saving produce drying apparatus according to claim 1, wherein: the bottom of drying furnace (1) just is located the below of importing and exporting (3) and has seted up the through-hole, the back bottom fixed mounting of drying furnace (1) has solenoid valve (15), solenoid valve (15) are connected with drying furnace (1) bottom through-hole.

3. An energy saving produce drying apparatus according to claim 1, wherein: the right side bottom fixed mounting of outer container (5) has preheating cabinet (10), preheating cabinet (10) and outer container (5) intercommunication, preheating cabinet (10) and transmission band (9) movable mounting, the right side fixed mounting of preheating cabinet (10) has gate (12), the right-hand member fixedly connected with gas transfer hole (14) of preheating cabinet (10), gas transfer hole (14) and dehumidifier intercommunication.

4. An energy saving produce drying apparatus according to claim 1, wherein: the top end movable mounting of atmospheric pressure telescopic link (6) has the closing cap, the even fixed mounting of upper surface of clamp plate (4) has anticollision spring (8).

5. An energy saving produce drying apparatus according to claim 1, wherein: and microwave generators are uniformly and fixedly arranged on the partition plate (2).

6. An energy saving produce drying apparatus according to claim 1, wherein: the transmission plate on the transmission belt (9) is a mesh plate.

Technical Field

The invention relates to the technical field of agricultural product processing, in particular to energy-saving agricultural product drying equipment.

Background

The yield of various fruits and vegetables is in the forefront of the world in China, but the moisture content of fresh agricultural products is high, and the agricultural products can go bad and rot due to slight improper treatment in the processes of storage, transportation, sale and the like, so that the postpartum loss of the agricultural products is serious, the agricultural products are dried in order to realize the storage and preservation of the agricultural products, the milk storage property and the preservation resistance of the agricultural products are improved, the existing agricultural product drying technology comprises drying methods such as hot air drying, microwave drying, vacuum-freeze drying, combined drying and the like, wherein the hot air drying and the microwave drying are most widely applied, but the two methods have some defects as follows:

when hot air is used for drying, the surface of an agricultural product is firstly heated, and then heat is transferred to the inside of the agricultural product, so that the internal temperature of the agricultural product is lower than the surface temperature, the moisture in the agricultural product is difficult to evaporate from the inside of the agricultural product, the internal and external drying of the agricultural product is uneven, and when hot air is used for drying, the requirements on the flow rate and the temperature of the hot air are high, although the high-speed hot air can accelerate the drying of the agricultural product, a large amount of heat cannot be utilized, the resource waste is easily caused, the flow rate is too low, the drying time of the agricultural product is prolonged, and the requirement on cost increase can be met; when the microwave drying device is used for drying, the microwave is emitted to directly act on the inside of an agricultural product, the agricultural product is uniformly heated from inside to outside, moisture in the agricultural product is rapidly removed, but the agricultural product is heated by the microwave device, a large amount of energy needs to be consumed, the heating cost is increased, and the microwave drying device is not beneficial to drying of large-batch agricultural products.

Disclosure of Invention

The invention provides energy-saving agricultural product drying equipment, which has the advantages of energy conservation and high drying speed and solves the problems in the background art.

The invention provides the following technical scheme: an energy-saving agricultural product drying device comprises a drying furnace, a transmission belt, a dehumidifier and a hot-blast stove, wherein the drying furnace is movably connected with the transmission belt, the dehumidifier is communicated with the hot-blast stove through a guide pipe, a partition plate is fixedly arranged in the drying furnace, an inlet and an outlet are arranged at the bottom of the drying furnace and below the partition plate, a pressing plate is movably sleeved in the drying furnace and above the partition plate, an outer box is fixedly sleeved outside the drying furnace, an air pressure telescopic rod is fixedly arranged at the top of the outer box, the bottom end of the air pressure telescopic rod is fixedly connected with the upper surface of the pressing plate, a return spring is uniformly and fixedly connected with the bottom surface of the pressing plate, a sealing plate is uniformly and fixedly arranged on the transmission belt and is movably connected with the inlet and the outlet, an air inlet is fixedly arranged at the bottom of the drying furnace and below the transmission belt, the air inlet penetrates through the outer box and is communicated with the hot blast stove.

Preferably, the bottom of the drying furnace is provided with a through hole below the inlet and the outlet, the bottom of the back of the drying furnace is fixedly provided with an electromagnetic valve, and the electromagnetic valve is connected with the through hole at the bottom of the drying furnace.

Preferably, the bottom of the right side of the outer box is fixedly provided with a preheating box, the preheating box is communicated with the outer box, the preheating box is movably mounted with a conveying belt, the right side of the preheating box is fixedly provided with a gate, the right end of the preheating box is fixedly connected with a gas transmission hole, and the gas transmission hole is communicated with a dehumidifier.

Preferably, the top end of the pneumatic telescopic rod is movably provided with a sealing cover, and the upper surface of the pressing plate is uniformly and fixedly provided with anti-collision springs.

Preferably, the partition plate is uniformly and fixedly provided with a microwave generator.

Preferably, the transmission plate on the transmission belt is a mesh plate.

The invention has the following beneficial effects:

1. through the setting of drying furnace and clamp plate, make after letting in a certain amount of steam to drying furnace inside, utilize the atmospheric pressure telescopic link to push down the clamp plate, increase dry gas density, improve pressure, and then improve gaseous temperature fast, carry out rapid heating up to agricultural product, accelerate moisture evaporation in agricultural product, improve the drying rate of agricultural product, and simultaneously, through microwave generator's setting, make and heat the inside and outside of agricultural product together, promote the inside temperature of agricultural product, form inside temperature difference, and then further accelerate drying rate.

2. Through return spring's setting, make after the solenoid valve releases the compressed gas in the drying furnace, can promote the clamp plate and rise fast, form local vacuum in the drying furnace, cause the inside great pressure differential that produces of agricultural product, order about the outside discharge of moisture and deliver, and then carry out the drying to agricultural product, simultaneously through the setting of outer container and preheating cabinet, make before agricultural product gets into the drying furnace, utilize remaining heat to preheat it, strengthen the utilization to the heat on the one hand, reduce drying cost, on the other hand, ensure that agricultural product can be by rapid draing behind the entering drying furnace, shorten drying time, accelerate drying rate.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

FIG. 2 is a schematic top view of the structure of the present invention;

FIG. 3 is a schematic side view of the structure of the present invention.

In the figure: 1. a drying furnace; 2. a partition plate; 3. an inlet and an outlet; 4. pressing a plate; 5. an outer box; 6. an air pressure telescopic rod; 7. a return spring; 8. an anti-collision spring; 9. a conveyor belt; 10. a preheating box; 11. closing the plate; 12. a gate; 13. an air inlet; 14. a gas transmission hole; 15. an electromagnetic valve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an energy-saving agricultural product drying apparatus comprises a drying oven 1, a conveyor belt 9, a dehumidifier and a hot-blast stove, wherein the drying oven 1 is movably connected with the conveyor belt 9, the dehumidifier is communicated with the hot-blast stove through a conduit, a partition plate 2 is fixedly installed inside the drying oven 1, an inlet and outlet 3 is formed in the bottom of the drying oven 1 and below the partition plate 2, a pressing plate 4 is movably sleeved inside the drying oven 1 and above the partition plate 2, an outer box 5 is fixedly sleeved outside the drying oven 1, an air pressure telescopic rod 6 is fixedly installed on the top of the outer box 5, the bottom end of the air pressure telescopic rod 6 is fixedly connected with the upper surface of the pressing plate 4, a return spring 7 is uniformly and fixedly connected with the bottom surface of the pressing plate 4, a sealing plate 11 is uniformly and fixedly installed on the conveyor belt 9, the sealing plate 11 is movably connected with the inlet and outlet 3, an air inlet 13 is fixedly installed in the bottom of the drying oven 1 and below the conveyor belt 9, an air inlet hole 13 penetrates through the outer box 5 to be communicated with the hot blast stove, agricultural products are placed between the sealing plates 11 and then are conveyed into the drying furnace 1 through the conveying belt 9, meanwhile, the sealing plates 11 are used for plugging the inlet and the outlet 3, hot blast stove introduces hot air into the drying furnace 1 through the air inlet hole 13 to heat the agricultural products, after a certain amount of hot air is introduced, the air pressure telescopic rod 6 is used for pressing down the pressing plate 4, the density of drying air is increased, the pressure intensity is improved, the temperature of the air is further rapidly increased, the temperature of the agricultural products is rapidly increased, the moisture evaporation in the agricultural products is accelerated, and the drying speed of the agricultural products is improved; a through hole is arranged at the bottom of the drying furnace 1 and below the inlet and outlet 3, an electromagnetic valve 15 is fixedly arranged at the bottom of the back of the drying furnace 1, the electromagnetic valve 15 is connected with the through hole at the bottom of the drying furnace 1, after the pressing plate 4 is pressed down, the gas is compressed to a certain pressure, and when the temperature rises to a certain degree, the electromagnetic valve 15 is opened, the gas in the drying furnace 1 is released intermittently, the damage to the agricultural products caused by overlarge pressure is avoided, meanwhile, the burning to the agricultural products caused by overhigh temperature of the gas is avoided, the drying quality of the agricultural products is improved, a preheating box 10 is fixedly arranged at the bottom of the right side of an outer box 5, the preheating box 10 is communicated with the outer box 5, the preheating box 10 is movably arranged with a conveying belt 9, a gate 12 is fixedly arranged at the right side of the preheating box 10, a gas transmission hole 14 is fixedly connected at the right end of the preheating box 10, the gas transmission hole 14 is communicated with a dehumidifier, and the gas released by the electromagnetic valve 15 gradually enters the preheating box 10, the agricultural product that can get into drying furnace 1 preheats, promote the temperature of agricultural product, improve the utilization to gas heat, reduce energy consumption, the top movable mounting of atmospheric pressure telescopic link 6 has the closing cap, the even fixed mounting of upper surface of clamp plate 4 has anticollision spring 8, after clamp plate 4 descends, compress return spring 7, and after the gas after not compressing is discharged from solenoid valve 15, open the closing cap on atmospheric pressure telescopic link 6, return spring 7 pushes away clamp plate 4 fast, pull the surplus gas in the space below clamp plate 4, form the partial vacuum, make the internal pressure of agricultural product be greater than external pressure, accelerate the emission of moisture, increase the drying rate of agricultural product; the partition plate 2 is uniformly and fixedly provided with a microwave generator, and when the gas in the drying furnace 1 starts to heat the agricultural products, the microwave generator is started, so that the inner part and the outer part of the agricultural products are heated together, and the drying speed is further accelerated; transmission board is the mesh board on transmission band 9, and when clamp plate 4 pushed down, hot-blast both ends from division board 2 constantly got into the below of transmission band 9 to pierce through transmission band 9 and rise, blow agricultural product, turn agricultural product, prevent that agricultural product from piling up, increase agricultural product and hot-blast contact effect, improve drying efficiency.

The working principle is that agricultural products are placed between sealing plates 11, then the agricultural products are conveyed into a drying furnace 1 through a conveying belt 9, meanwhile, an inlet and an outlet 3 are sealed through the sealing plates 11, hot air is introduced into the drying furnace 1 through an air inlet 13 by a hot air furnace to heat the agricultural products, after a certain amount of hot air is introduced, a pressure plate 4 is pressed down by an air pressure telescopic rod 6, a microwave generator is started to heat the agricultural products inside and outside simultaneously, then after the pressure plate 4 is pressed down, the air is compressed to a certain pressure, when the temperature rises to a certain degree, a solenoid valve 15 is opened, the air in the drying furnace 1 is released intermittently to avoid overlarge pressure and overhigh temperature, after a certain time, the solenoid valve 15 is opened completely to release the compressed air in the drying furnace 1, then a sealing cover on the air pressure telescopic rod 6 is opened, a return spring 7 pushes the pressure plate 4 away quickly, and residual air in the space below the pressure plate 4 is pulled, forming partial vacuum to make the internal pressure of the agricultural product greater than the external pressure and accelerate the discharge of moisture; gas released by the electromagnetic valve 15 gradually enters between the drying furnace 1 and the outer box 5 to form a heat insulation layer, enters the preheating box 10 under the pushing of the return stroke of the pressing plate 4, preheats the agricultural products about to enter the drying furnace 1, improves the initial temperature of the drying of the agricultural products, can be introduced into the dehumidifier for dehumidification by the gas in the preheating box 10, and then enters the hot blast stove for reheating, so that the gas is recycled.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.