CN104938620B - Crops drier - Google Patents

Abstract

The invention discloses a crop dryer, comprising: a frame; a drum, which is arranged on the frame and defines a storage space; a driving gear, coupled to the drum to rotate the drum along its axis; The feeding unit is provided with a feed inlet at its lower part; and the drying device arranged in the storage space includes: a heating pipe, which is a hollow pipe body, arranged at the central axis of the drum; and several The radiant plate protrudes from the outer surface of the heating tube, and the bottom of the heating tube defines several through holes; the end of the heating tube away from the feed inlet is provided with a fan; the end of the roller away from the feed inlet is Openings for draining crops. In the present invention, the heat energy is utilized more fully, and the electric energy for using the crop dryer is greatly saved, and the volume of the crop dryer is reduced at the same time, thereby improving user satisfaction.

Description

crop dryer

technical field

The invention relates to a crop processing machine. More specifically, the present invention relates to a crop dryer.

Background technique

Grains, including rice, wheat, rapeseed, etc., need to be dried after harvesting for storage and rolling. In order to complete the drying process of grain as soon as possible, people use grain drying equipment for processing. The grain drying equipment of the prior art adopted an upright baking oven, using coal, diesel oil or electricity as a heat source. Its shortcomings are: the production and processing of the oven in the upright state is more complicated, and the equipment investment is relatively large; the installation of the oven in the upright state is more difficult, and there are requirements for the height of the building, and the investment in the building is relatively large; Baking ovens using coal, diesel or electricity as a heat source will consume a lot of fuel and have high production costs.

Moreover, the drying device of the current crop dryer on the market is placed outside the drum, so the overall volume of the crop dryer is too large, and the heat energy of the drying device cannot be fully utilized, and the drying effect is not ideal.

Contents of the invention

An object of the present invention is to solve at least the above-mentioned problems and disadvantages and to provide advantages as will be described hereinafter.

Another object of the present invention is to solve the problem of low efficiency of the drying heating device by placing the heating device inside the drum.

Another object of the present invention is to further improve the thermal efficiency of the heating device by placing the blower inside the heating device.

Another object of the present invention is to improve the portability of the drum by connecting the opening of the drum to the dust collector so that the dust from the crops can be fully removed.

In order to achieve these objects and other advantages according to the present invention, a crop dryer is provided, comprising:

frame;

a drum, which is cylindrical, and the drum is arranged on the frame and defines a storage space;

a drive gear coupled to the drum to rotate the drum along its axis;

The feeding unit extends into one end of the storage space, and its lower part is provided with a feeding port, so that the crops fall into the storage space; and

The drying device is arranged in the storage space, including:

A heating pipe, which is a hollow pipe, is arranged at the central axis of the drum; and

Several radiant plates protrude from the outer surface of the heating tube and are used to expand the heat dissipation area of the heating tube,

Wherein, the bottom of the heating tube defines several through holes;

Wherein, the end of the heating pipe away from the feed inlet is provided with a fan, so that the heat in the heating pipe diffuses into the drum through the through hole;

Wherein, the end of the drum away from the feeding port is an opening for discharging crops.

Preferably, support rings are provided at both ends of the drum, and two support wheels are provided at the lower end of each support ring, and the support wheels are supported by the frame.

Preferably, the outer side of the fan is provided with a heat shield, which protrudes out of the drum.

Preferably, a dust collection cover is also installed on the frame, which communicates with the opening of the drum, and the dust collection cover defines a through hole for the heat shield to pass through the dust collection cover. The upper part of the dust collecting hood communicates with the dust remover, and the lower part of the dust collecting hood is provided with a discharge port.

Preferably, a discharge conveyor is also included, which is arranged at the lower end of the discharge port, and is used to transfer the crops falling from the discharge port.

Preferably, the plurality of radiant plates are all ring-shaped and evenly distributed on the heating pipe.

Preferably, several first thermometers are arranged inside the heating tube.

Preferably, several second thermometers are provided on the inner surface of the storage space.

Preferably, the inner wall of the drum is evenly provided with several lifting boards for lifting the crops.

The present invention at least includes the following beneficial effects:

The invention provides a crop dryer, since a hollow heating tube is placed in a drum, and a fan is arranged at one end of the heating tube, the fan discharges the heat energy in the heating tube to the outside of the heating tube, so that the heat energy can be utilized more fully, and It greatly saves the electric energy of using the crop dryer, reduces the volume of the crop dryer at the same time, and improves the user's satisfaction.

In addition, since the through hole is defined at the lower part of the heating tube, the hot air blows directly downward, making the material waterfall more uniform and sufficient, increasing the contact time and area between the crops and the hot air, making the drying more complete and improving user satisfaction .

In addition, since the radiation plate is arranged on the outer surface of the heating pipe, the heat dissipation area of the heating pipe is further enlarged, so that the drying is more complete and the user's satisfaction is improved.

In addition, since the heat shield is arranged outside the fan, the loss of heat in the drum can be reduced, and at the same time, the dust collection cover is isolated from the heating pipe.

In addition, since the dust collecting hood is installed at the opening of the drum, the hole on the upper part of the dust collecting hood is connected with the dust remover, so that the drum is sealed as a whole, and the airflow in the cover produces a chimney effect, so that a large amount of dust scattered in the drum Dust impurities and hot and humid air are concentrated, and are purified and discharged through the dust collector connected to the upper part of the dust collection hood, so that the crops are dried more completely, the impurities are less, the working environment on site is cleaner, and the satisfaction of users is improved.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the study and practice of the present invention.

Description of drawings

Fig. 1 is the structural representation of crop drying machine of the present invention;

Fig. 2 is a left side sectional view in Fig. 1;

Fig. 3 is a schematic structural view of the interior of the drum in the present invention;

Fig. 4 is the bottom view of heating pipe place among the present invention;

Fig. 5 is a schematic diagram of the structure of the heating tube in the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

As shown in Figures 1-5, a crop dryer includes:

The frame 1 is a rectangular steel plate, and the frame 1 is placed horizontally on the ground;

The drum 2 is cylindrical, and the drum 2 is arranged on the frame 1 and defines a storage space. The two ends of the drum 2 are provided with supporting rings 8, and the lower ends of each supporting ring 8 are respectively provided with two A supporting wheel 9, the supporting wheel 9 is supported by the frame 1, and under the condition of less crops, the supporting wheel 9 drives the supporting ring 8 to rotate, and then drives the drum 2 to rotate;

The driving gear 3 is connected to the drum 2 so that the drum 2 rotates along its axis. When the crops in the drum 2 increase and the supporting wheel 3 cannot drive the drum 2 to rotate, the driving gear 3 drives the drum 2 to rotate at this time;

The feed unit 4 extends into one end of the storage space, and its lower part is provided with a feed port 41, so that the crops fall into the storage space, and the feed unit 4 is fixedly connected with the frame through a bracket to solve the problem of the drum due to the Problems with vibrations causing the feed unit to shake; and

The drying device is arranged in the storage space, and the drying device is used for drying crops, including:

The heating tube 5, which is a hollow tube, is arranged on the central axis of the drum 2, and one end thereof is fixed to the housing of the feeding unit 4. In one embodiment, the heating tube 5 is controlled by a frequency converter Heated by a high-frequency inductive device, the high-frequency inductive heating device has the advantage of small energy loss; and

Several radiation plates 6 protrude from the outer surface of the heating tube 5 and are used to expand the heat dissipation area of the heating tube 5. The radiation plate 6 can be one of aluminum alloy plate, steel plate or heat-conducting silica gel plate or more.

The bottom of the heating pipe 5 defines several through holes 501. The reason why the through holes 501 are not arranged on the entire surface of the heating pipe is that after the through holes are arranged on the entire surface, some light-weight crops will be lifted up. The moving wind keeps it in the air, increasing the time of feeding;

The end of the heating pipe 5 away from the feed inlet is provided with a fan 7, so that the heat in the heating pipe 5 diffuses into the drum 2 through the through hole 501;

The end of the drum 2 away from the feeding port is an opening for discharging crops.

The outer side of the fan is provided with a heat shield 10, which protrudes out of the drum 2. The heat shield 10 and the frame 1 are fixed by a bracket, and the height of the heat shield 10 is consistent with the height of the feeding unit 4.

A dust collection cover 11 is also installed on the frame 1, which communicates with the opening of the drum 2, and the dust collection cover 11 defines a through hole so that the heat shield 10 passes through the dust collection cover 11 , the upper part of the dust collecting hood 11 communicates with the dust collector 12 , and the lower part of the dust collecting hood 11 is provided with a discharge port 111 .

In this embodiment, the dust collection cover 11 is an integral airtight cover, which has the advantages of large volume and good sealing performance, and is suitable for the objective conditions of the crop dryer with a large dust-producing airflow, fixed dust-producing points, and vibration.

It also includes a discharge conveyor 13, which is arranged at the lower end of the discharge port 111, and is used to transfer the crops falling from the discharge port 111 to the next processing unit.

The plurality of radiation plates 6 are ring-shaped and evenly distributed on the heating pipe 5, which can radiate heat flow to other parts of the storage space, so that the heat in the storage space is more uniform and the utilization of heat energy is higher.

The inside of the heating tube 5 is provided with several first thermometers 51 for sensing the temperature inside the heating tube.

Several second thermometers 21 are arranged on the inner surface of the storage space. The second thermometers 21 are used to measure the temperature of the crops in the drum. The user can adjust the heating power of the heating tube according to the temperature.

The inner wall of the drum 2 is evenly provided with a number of lifting boards 22 for picking up the crops, which pick up the crops and gradually sprinkle them into the hot air, so as to strengthen the heat exchange between the material and the hot air, and promote the drying process.

Way of working

The crops enter the drum 2 from the feeding unit 4, and the drum 2 is driven to rotate by the driving gear 3. Since the inside of the drum 2 is uniformly equipped with a lifting plate 22, the crops can be fed in the drum 2. According to the first thermometer 51 and the second The temperature detection data of the thermometer 21 adjusts the power of the heating tube 5, and the moisture of the crops can be dried, and the moisture and dust enter the dust collector 12 through the dust collection cover 11, and the dried crops are gradually shifted to the The discharge port 111 is transported to the next process by the discharge conveyor 13.

Industrial Applicability

The invention provides a crop dryer, since a hollow heating tube is placed in a drum, and a fan is arranged at one end of the heating tube, the fan discharges the heat energy in the heating tube to the outside of the heating tube, so that the heat energy can be utilized more fully, and It greatly saves the electric energy of using the crop dryer, reduces the volume of the crop dryer at the same time, and improves the user's satisfaction.

In addition, because the through hole is defined at the lower part of the heating tube, the hot air blows directly downward, making the material flow more uniform and sufficient, increasing the contact time and area between the crops and the hot air, making the drying more complete and improving user satisfaction .

In addition, since the radiation plate is arranged on the outer surface of the heating pipe, the heat dissipation area of the heating pipe is further enlarged, so that the drying is more complete and the user's satisfaction is improved.

In addition, since the heat shield is arranged outside the fan, the loss of heat in the drum can be reduced, and at the same time, the dust collection cover is isolated from the heating pipe.

In addition, since the dust collection cover is installed at the opening of the drum, the drum is sealed as a whole, and a certain negative pressure is generated in the cover, so that a large amount of dust and impurities scattered in the drum and hot and humid air are collected and passed through the dust collector. The dust collector connected to the upper part of the hood is sucked away, so that the crops are dried more completely and the impurities are less, which improves the user's satisfaction.

Although embodiments of the present invention have been disclosed above, it is not limited to the applications set forth in the specification and examples. It can be fully applied to various fields suitable for the present invention. Additional modifications can readily be made by those skilled in the art. Therefore, the invention should not be limited to the specific details and examples shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (9)

1. A crop dryer, comprising: frame; a drum, which is cylindrical, and the drum is arranged on the frame and defines a storage space; a drive gear coupled to the drum to rotate the drum along its axis; The feeding unit extends into one end of the storage space, and its lower part is provided with a feeding port, so that the crops fall into the storage space; and The drying device is arranged in the storage space, including: A heating pipe, which is a hollow pipe, is arranged at the central axis of the drum; and Several radiation plates protrude from the outer surface of the heating tube and are used to expand the heat dissipation area of the heating tube. The radiation plate is any one of aluminum alloy plate, steel plate or heat-conducting silica gel plate; Wherein, the bottom of the heating tube defines several through holes; Wherein, the end of the heating pipe away from the feed inlet is provided with a fan, so that the heat in the heating pipe diffuses into the drum through the through hole; Wherein, the end of the drum away from the feeding port is an opening for discharging crops. 2. The crop dryer as claimed in claim 1, wherein support rings are provided at both ends of the drum, and two support wheels are respectively provided at the lower end of each support ring, and the support wheels are supported by the frame. support. 3. The crop drying machine according to claim 2, wherein, the outer side of the fan is provided with a heat shield, which protrudes out of the drum. 4. The crop drying machine according to claim 3, wherein a dust collection cover is installed on the frame, which communicates with the opening of the drum, and the dust collection cover defines a through hole so that the The heat shield passes through the dust collecting hood, the upper part of the dust collecting hood communicates with the dust remover, and the lower part of the dust collecting hood is provided with a discharge port. 5. The crop dryer according to claim 4, further comprising a discharge conveyor, which is arranged at the lower end of the discharge port, and is used to transfer the crops falling from the discharge port. 6 . The crop dryer according to claim 5 , wherein, the plurality of radiant plates are ring-shaped and evenly distributed on the heating pipe. 7. The crop dryer according to claim 6, wherein several first thermometers are arranged inside the heating pipe. 8. The crop dryer according to claim 7, wherein the inner surface of the storage space is provided with several second thermometers. 9. The crop drying machine according to claim 8, wherein, the inner wall of the drum is evenly provided with several lifting boards for lifting the crops.