CN217383699U - Air supply arrangement for grain drying-machine - Google Patents

Abstract

The utility model relates to the technical field of grain dryers, and specifically discloses an air supply device for grain dryers, which comprises a drying bin, a fan and an angular box. The angular box is installed on both sides of the drying bin. The port is fixed in the inner cavity of the drying chamber. The two sides of the drying chamber are respectively provided with an air inlet box and an air outlet box covering the installation port. The wind box is provided with a shroud that moves up and down, the lower end of the shroud fits with the outer side wall of the air inlet box, and the upper end of the shroud fits with the side of the drying bin covered in the inlet box; the air supply device The height of the shroud in the air inlet box can be adjusted according to the amount of grain to be dried in the drying bin, and the angular box above the grain can be sealed when the drying bin is not full to prevent it from being sent during the drying process. The incoming hot air flows through the upper grain-free angular box, which can effectively reduce the heat loss in the grain drying process.

Description

A kind of air supply device for grain dryer

technical field

The utility model relates to the technical field of grain dryers, and specifically discloses an air supply device for grain dryers.

Background technique

Grain dryer is a kind of equipment for drying the harvested grain. Its main structure includes drying tower, elevator and air supply device. In the drying section, hot air is continuously fed into the drying tunnel through the air supply device to dry it.

For example, the invention patent with the application number of 2018106210957 discloses a circulating grain dryer, which includes a body, a hoist is fixedly installed on the side wall of the body, and two sets of drying bins are arranged in the inner cavity of the body. Angle box, the bottom of the drying bin is fixedly connected with a lowering hopper, the upper part of the lowering hopper is installed with a dividing plate, a feeding trough is opened between the separation plates, the bottom of the dividing plate is fixedly installed with a grain transfer roller, and the bottom of the lowering hopper is fixed A feeding pipe is connected, a branch pipe is fixedly connected to the right side of the feeding pipe, a flap is arranged between the branch pipe and the feeding pipe, and a circulation pipe is fixedly connected between the bottom end of the branch pipe and the bottom end of the elevator. A dust-removing mechanism is installed at the top of the body to slide the grain pipe. When the circulating grain dryer disclosed in the invention dries the grains in the drying bin, the hot air sent by it enters the diagonal box through the hot air cavity, and the hot air sent through the angular box is used to dry the grain in the drying bin. Grain is dried. However, this type of circulating grain dryer has some design defects, mainly due to the fact that the hot air cavity on the side of the drying bin of the circulating grain dryer is connected to all the angular boxes, although all the angular boxes are in the full bin state. All boxes can dry the grain, but when drying less grain (that is, the drying bin is not full), the hot air is sent to the upper corner box, which is not in contact with the grain. , the hot air in the upper corner box is directly discharged without heat exchange with the grains, resulting in heat loss. Therefore, in view of the above-mentioned shortcomings of the existing circulating grain dryer, the present application proposes an air supply device that can adjust the ventilation state of the angular box according to the amount of grain in the drying bin, thereby solving the existing problems of the existing grain dryer. .

Utility model content

The purpose of this utility model is to design an air supply device for a grain dryer that can effectively solve the above technical problems, aiming at the above-mentioned deficiencies of the air supply device and the drying bin in the existing circulating grain dryer.

The utility model is achieved through the following technical solutions:

An air supply device for a grain dryer comprises a drying bin, a fan and an angular box, wherein the angular box is fixed in the inner cavity of the drying bin through installation openings opened on both sides of the drying bin, and the The two sides of the drying bin are respectively provided with an air inlet box and an air outlet box covering the installation opening, the fan is communicated with the lower end of the air inlet box, the lower end of the air outlet box is connected with an exhaust channel, and the air inlet box is provided with A guide hood that moves up and down, the lower end of the guide hood is in contact with the outer side wall of the air inlet box, and the upper end of the air guide hood is in contact with the side surface of the drying bin covered in the air inlet box.

As a specific arrangement of the above solution, the two ends of the shroud are respectively provided with a slider and a lead screw nut, and both ends of the air outlet box are respectively provided with a slide rail matching the slider and a lead screw nut. Matching drive screw.

As a specific arrangement of the above scheme, a transmission box is arranged on the front side of the air inlet box, the transmission screw is arranged in the transmission box, and the upper end of the transmission box is also provided with a screw motor connected with the transmission screw, The air inlet box is also provided with a bar-shaped port that communicates with the transmission case, and the screw nut extends into the transmission case through the bar-shaped port to match with the transmission screw rod.

As a specific arrangement of the above solution, the shape of the air shroud is an arc.

As a specific setting of the above solution, two fans are provided, and the two fans are provided directly below the air inlet box.

As a further arrangement of the above solution, a dust collector is connected to the tail end of the exhaust passage.

Beneficial effects:

When the air supply device designed by the utility model is used in a grain dryer, the height of the shroud in the air inlet box can be adjusted according to the amount of grain to be dried in the drying bin, so that when the drying bin is not full The angular box above the grain is sealed to prevent the hot air sent in during the drying process from flowing through the angular box without grain above, which can effectively reduce the heat loss during the drying process of the grain. The structure design of the entire air supply device Simple, but makes the whole grain dryer have the excellent effect of energy saving and environmental protection.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of drying bin and angular box in the utility model;

3 is a schematic diagram of the three-dimensional structure of an air inlet box, a fan, a shroud, etc. in the utility model;

4 is a schematic diagram of the internal plane structure of the air inlet box and the transmission box in the utility model;

FIG. 5 is a schematic three-dimensional structure diagram of the air deflector in the present invention.

Detailed ways

In order to make those skilled in the art better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only The embodiments are part of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the scope of protection of the present application.

It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings 1 to 5 and in conjunction with the embodiments.

Example 1

Embodiment 1 discloses an air supply device used in a grain dryer. Referring to FIG. 1 and FIG. 2 , the main body of the air supply device includes a drying bin 100 , a fan 200 , and an angular box 500 . A large number of angular box installation openings 101 are opened on the left and right sides of the drying bin 100 , and then the two ends of the angular box 500 are respectively communicated with the corresponding angular box installation openings 101 . An air inlet box 300 and an air outlet box 400 are installed on both sides of the drying bin 100 with the angular box installation opening 101 . In this figure, the air inlet box 300 is arranged on the left side of the drying compartment 100, the air outlet box 400 is arranged on the right side of the drying compartment 100, and the air inlet box 300 and the air outlet box 400 both cover all the corner box installation openings 101 set up.

The fans 200 are arranged directly below the air inlet box 300. There are two fans 200 in this figure. The air outlet is connected to the lower surface of the air inlet box 300, so that the hot air drawn in by the fan 200 can flow upward from the bottom of the air inlet box 300, and then enter the corner box 500 through the corner box installation port 101 to dry the grain.

Referring to Figure 3, Figure 4 and Figure 5, the key design point of this embodiment 1 is that a vertical slide rail 301 is also provided on the inner wall of the rear side of the air inlet box 300, on the front side of the air inlet box 300 A vertical transmission box 302 is provided, a screw motor 303 is arranged at the upper end of the transmission box 302, and a vertical transmission screw 304 is connected to the end of the output shaft of the screw motor 303 extending into the transmission box 302, and at the same time A vertical bar-shaped opening 305 is opened between the transmission box 302 and the front side of the air inlet box 300 . An arc-shaped air shroud 306 is arranged in the air inlet box 300 , the lower end of the air shroud 306 is attached to the outer side wall of the air inlet box 300 , and the upper end is connected to the left side of the drying bin 100 with the angular box installation port 101 Face to face setting. A sliding block 307 is connected to the rear end of the air guide cover 306 , and a sliding groove matching the sliding rail 301 is defined on the sliding block 307 . A lead screw nut 308 extending into the transmission case 302 through the vertical bar-shaped opening 305 is connected to the front end of the air guide 306 , and the lead screw nut 308 is arranged in cooperation with the transmission lead screw 304 . In addition, the up-and-down adjustment of the air deflector 306 in the first embodiment is not limited to the above-mentioned one method, and it can also be raised and lowered by means of a transmission chain, an electric telescopic rod, or the like.

Finally, an exhaust channel 401 is connected to the lower surface of the air outlet box 400. In order to prevent the exhaust hot air from being mixed with dust, a cyclone or a bag filter can also be connected to the end of the exhaust channel 401.

The air supply device for the grain dryer disclosed in this embodiment 1 sends the hot air in the hot blast stove or the biomass combustion furnace into the air inlet box 300 through the fan 200, and then flows upward from the bottom end of the air inlet box 300. When the hot air encounters the The air deflector 306 cannot continue to flow upward. At this time, the hot air directly enters the angular box 500 through the angular box installation port 101 to dry the grain. After drying, the hot air enters the air outlet box 400 and exits the exhaust channel 401 can be discharged.

When the grain in the drying bin 100 is not full, the operator can control the screw motor 303 to rotate, and then under the driving of the driving screw 304 and the screw nut 308 and the guiding action of the sliding block 307 and the sliding rail 301 , so that the guide hood 306 moves from top to bottom until the upper end of the guide hood 306 is flush with the upper end of the grain in the drying bin. The shape box will not send hot air, which can effectively avoid the waste of heat energy of the hot air.

The above are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection.

Claims (6)

1. The utility model provides an air supply arrangement for grain drying-machine, includes stoving storehouse, fan and horn shape box, the horn shape box is fixed in the storehouse inner chamber of drying through seting up the installing port on the storehouse both sides face of drying, its characterized in that, the both sides face in stoving storehouse is provided with air inlet box and the air-out case that covers the installing port respectively, the fan is linked together with the lower extreme of air inlet box, the lower extreme that goes out the bellows is connected with the passageway of airing exhaust, be provided with the kuppe that reciprocates in the air inlet box, the lower extreme of kuppe is laminated mutually with the outside wall of air inlet box, and the upper end of kuppe is laminated mutually with the storehouse side of drying that covers in the air inlet box.

2. The air supply device for the grain dryer according to claim 1, wherein the two ends of the air guide sleeve are respectively provided with a slide block and a screw nut, and the two ends of the air outlet box are respectively provided with a slide rail matched with the slide block and a transmission screw matched with the screw nut.

3. The air supply device for the grain dryer according to claim 2, wherein a transmission box is arranged on the front side surface of the air inlet box, the transmission screw rod is arranged in the transmission box, a screw rod motor connected with the transmission screw rod is further arranged at the upper end of the transmission box, a bar-shaped opening communicated with the transmission box is further formed in the air inlet box, and the screw rod nut penetrates through the bar-shaped opening and extends into the transmission box to be matched with the transmission screw rod.

4. The air supply device for the grain dryer according to any one of claims 1 to 3, wherein the shape of the air guide sleeve is an arc.

5. The air supply device for the grain dryer according to claim 1, wherein two fans are provided, and the two fans are provided right below the air inlet box.

6. The air supply device for the grain dryer according to claim 1, wherein a dust collector is connected to a tail end of the air exhaust channel.

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