A drying apparatus for wheat after cleaning

Abstract

The utility model discloses a kind of drying equipment after wheat cleaning, belong to flour processing field, including drying cabinet and industrial computer, the inside of drying cabinet is equipped with conveying assembly, low-temperature heating assembly is installed on the drying cabinet, the bottom of drying cabinet is equipped with discharge port, the lower portion of discharge port is provided with belt conveyor, the upper portion of belt conveyor is provided with first air distribution plate, first air distribution plate is connected with low-temperature heating assembly, the top of drying cabinet is equipped with centrifugal fan, the upper portion of drying cabinet is equipped with feed hopper on one side;Through setting conveying assembly and low-temperature heating assembly, slowly move after the dehydration of wheat on spiral material guide plate, and spiral material guide plate is equipped with air hole, and cooperate with the low-temperature wind of low-temperature heating assembly conveying, so that wheat is continuously contacted with low-temperature wind in conveying process, complete dynamic drying, to improve the drying efficiency of wheat.

Description

Technical Field

[0001] This utility model belongs to the field of flour processing technology, specifically relating to a wheat drying device after washing. Background Technology

[0002] Flour processing refers to the process of using wheat as raw material and carrying out a series of physical processing steps to remove impurities, separate the components of the wheat grain (wheat bran, germ, and endosperm), and grind and sieve the endosperm into flour that meets different quality requirements. Before being processed into flour, the wheat needs to be washed and then air-dried to reduce its moisture content.

[0003] According to the authorization announcement number CN 209379092 U, a wheat washing device is known prior art. Although this patent combines water level control, dehydration chamber, drying chamber, and fan to control excess moisture on the surface of wheat after washing, thus achieving the functions of wheat washing and moisture control, thereby improving flour quality and production efficiency, the technical solution of this patent still has the following defects in actual use: In this patent, an air inlet pipe is set at the connection between the upper part of the dehydration chamber and the drying chamber. The other end of the air inlet pipe is connected to the fan and the upper part of the drying chamber. However, the efficiency is relatively low because the wheat may be piled up or spread out in the drying chamber. It is difficult for the air in the air inlet pipe to dry the wheat at the bottom of the drying chamber, resulting in low wheat drying efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a wheat drying device after washing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wheat drying device after washing, comprising a drying box and an industrial control computer. A conveying assembly is installed inside the drying box, and a low-temperature heating assembly is installed on the drying box. A discharge port is opened at the bottom of the drying box, and a belt conveyor is arranged below the discharge port. A first air distribution plate is arranged above the belt conveyor and is connected to the low-temperature heating assembly. A centrifugal fan is installed at the top of the drying box, and a feeding hopper is opened on one side of the top of the drying box for adding washed wheat.

[0006] In a preferred embodiment, the conveying assembly includes a mounting cylinder mounted on the inner wall of the drying chamber, and a spiral guide plate integrally formed and connected to the mounting cylinder.

[0007] In a preferred embodiment, the spiral guide plate is provided with uniformly distributed ventilation holes, the top end of the spiral guide plate corresponds to the position of the feed hopper, and the bottom end of the spiral guide plate corresponds to the position of the discharge port.

[0008] In a preferred embodiment, the low-temperature heating assembly includes a heating chamber and a fan, both of which are installed on one side of the drying chamber. A heating wire is installed inside the heating chamber, and an amplifier and a PID controller are mounted on the heating chamber. A temperature sensor is installed inside the drying chamber, with one end of the temperature sensor connected to the signal input terminal of the amplifier. The signal output terminal of the amplifier is connected to the signal input terminal of the PID controller. The signal output terminal of the PID controller is connected to the heating wire via a contactor, and the signal output terminal of the PID controller is electrically connected to the input terminal of the fan. The air outlet of the fan is connected to a first duct and a second duct via a tee.

[0009] In a preferred embodiment, the first air duct is connected to the heating box, the bottom of the heating box is connected to a third air duct, one end of the third air duct passes through the drying box and is connected to a second air distribution plate, and the second air distribution plate is installed on the inner wall of the drying box.

[0010] In a preferred embodiment, the first air distribution plate is installed on one side of the drying box, and the top of the first air distribution plate is connected to one end of the second air duct.

[0011] In a preferred embodiment, the drying box is symmetrically supported on both sides, and the industrial control computer is installed on one side of the belt conveyor.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This wheat drying equipment, after washing, is equipped with a conveying component and a low-temperature heating component. The dehydrated wheat moves slowly on a spiral guide plate with ventilation holes. Combined with the low-temperature air conveyed by the low-temperature heating component, the wheat is in continuous contact with the low-temperature air during the conveying process, thus completing dynamic drying and improving the drying efficiency of the wheat. The wheat drying equipment after washing uses a belt conveyor and a first air distribution plate. The wheat, which has been dynamically dried in the drying box, is conveyed on the belt conveyor. The air blown out by the first air distribution plate cools down the wheat on the belt conveyor and dries it again, thus making the wheat more thoroughly dried. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the first air distribution plate in the structure of this utility model; Figure 3This is a schematic diagram of the conveying component in the structure of this utility model; Figure 4 This is a schematic diagram of the low-temperature heating component in the structure of this utility model; Figure 5 This is a schematic diagram of the telecommunications connection of the low-temperature heating component in the structure of this utility model.

[0014] In the diagram: 1. Feed hopper; 2. Drying box; 3. Centrifugal fan; 4. Low-temperature heating assembly; 401. Second air distribution plate; 402. Fan; 403. First air duct; 404. Heating box; 405. Heating wire; 406. Third air duct; 407. Second air duct; 408. Temperature sensor; 409. Amplifier; 410. PID controller; 5. First air distribution plate; 6. Belt conveyor; 7. Industrial computer; 8. Support base; 9. Conveying assembly; 901. Mounting cylinder; 902. Spiral guide plate; 903. Vent hole; 10. Discharge port. Detailed Implementation

[0015] The present invention will be further described below with reference to the embodiments.

[0016] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0017] Please see Figure 1 and Figure 2 This utility model provides a wheat drying device after washing, including a drying box 2 and an industrial control computer 7. Support seats 8 are symmetrically installed on both sides of the drying box 2. The industrial control computer 7 is installed on one side of the belt conveyor 6. A conveying assembly 9 is installed inside the drying box 2. The conveying assembly 9 includes a mounting cylinder 901, which is installed on the inner wall of the drying box 2. A spiral guide plate 902 is integrally formed and connected to the mounting cylinder 901. Ventilation holes 903 are evenly opened on the spiral guide plate 902. The diameter of the ventilation holes 903 is set to be insufficient for a single grain of wheat to pass through. The top end of the spiral guide plate 902 corresponds to the position of the feed hopper 1, and the bottom end of the spiral guide plate 902 corresponds to the position of the discharge port 10.

[0018] In this embodiment, the wheat that has been washed and preliminarily dehydrated is first fed into the spiral guide plate 902 in the drying box 2 through the feed hopper 1, so that the wheat spirals down on the spiral guide plate 902, which increases the conveying time of the wheat from feeding to discharging in the drying box 2, and allows the wheat to continuously contact the low-temperature air generated by the low-temperature heating component 4 during the conveying process, thus completing the dynamic drying.

[0019] In the above scheme, it should be noted that: the model of industrial computer 7 is 6AV7241-5BB37-0FA, and industrial computer 7 is an existing product. At the same time, the specific structure, telecommunications connection method and control principle of industrial computer 7 are all existing publicly available technical means, and will not be described in detail here.

[0020] Please see Figures 2-5 The drying chamber 2 is equipped with a low-temperature heating component 4, which includes a heating box 404 and a fan 402. Both the heating box 404 and the fan 402 are installed on one side of the drying chamber 2. A heating wire 405 is installed inside the heating box 404. An amplifier 409 and a PID controller 410 are installed on the heating box 404. A temperature sensor 408 is installed inside the drying chamber 2. One end of the temperature sensor 408 is connected to the signal input terminal of the amplifier 409, and the signal output terminal of the amplifier 409 is connected to the signal input terminal of the PID controller 410. The signal output terminal of the PID controller 410 is connected to the heating wire 405 via a contactor. The signal output terminal of the PID controller 410 is electrically connected to the input terminal of the fan 402. The air outlet of the fan 402 is connected to the first air duct 403 and the second air duct 407 via a T-junction. The first air duct 403 is connected to the heating box 404. The bottom of the heating box 404 is connected to the third air duct 406. One end of the third air duct 406 passes through the drying box 2 and is connected to the second air distribution plate 401. The second air distribution plate 401 is installed on the inner wall of the drying box 2. The working principle of the low-temperature heating component 4 to achieve low-temperature heating is as follows: the temperature of the drying box 2 measured by the temperature sensor 408 is converted into a voltage signal and transmitted to the amplifier 409. The electrical signal of the amplifier 409 is transmitted to the PID controller 410. The PID controller 410 controls the fan 402 to work and controls the heating wire 405 to heat to the preset temperature. In the above scheme, it should be noted that: the fan 402 is model LDL505, the temperature sensor 408 is model MF52 NTC temperature sensor, the heating wire 405 is model 6J40, and the amplifier 409 is model LM358. Furthermore, the fan 402, temperature sensor 408, heating wire 405, amplifier 409, and PID controller 410 are all existing mature products. At the same time, the telecommunication connection method and signal processing control method between the fan 402, temperature sensor 408, heating wire 405, and amplifier 409 and the PID controller 410 all adopt existing publicly available technical means, which will not be described in detail here.

[0021] Please see Figures 1-3The bottom of the drying box 2 is provided with a discharge port 10. Below the discharge port 10, a belt conveyor 6 is provided. Above the belt conveyor 6, a first air distribution plate 5 is provided. The first air distribution plate 5 is installed on one side of the drying box 2. The top of the first air distribution plate 5 is connected to one end of the second air duct 407. The first air distribution plate 5 is connected to the low temperature heating component 4. A centrifugal fan 3 is installed on the top of the drying box 2. A feed hopper 1 is provided on one side of the top of the drying box 2. The feed hopper 1 is used to add washed wheat.

[0022] In this embodiment, the centrifugal fan 3 can exhaust the hot and humid air in the drying box 2. The temperature of the drying box 2 measured by the temperature sensor 408 in the low-temperature heating component 4 is converted into a voltage signal and transmitted to the amplifier 409. The signal from the amplifier 409 is transmitted to the PID controller 410. The PID controller 410 controls the heating wire 405 to heat to the preset temperature (the temperature range for low-temperature drying of wheat can be set to 35℃~45℃, but the specific temperature range can be set according to actual needs), thereby completing the low-temperature drying in the drying box 2. The PID controller 410 controls the operation of the fan 402. Part of the gas generated by the fan 402 enters the heating box 404 and part enters the first air distribution plate 5. The gas in the heating box 404 is heated by the heating wire 405 and then enters the second air distribution plate 401 to heat and dry the wheat on the spiral guide plate 902. The wheat that has been dynamically dried in the drying box 2 is conveyed on the belt conveyor 6. The air blown out by the first air distribution plate 5 cools down the wheat on the belt conveyor 6 and dries it again, making the drying more thorough.

[0023] In the above scheme, it should be noted that: the model of belt conveyor 6 can be selected as DTII-800*30m, and belt conveyor 6 is an existing device. Its specific structure, electrical connection method and working principle are all existing publicly available technical means. At the same time, the temperature range of wheat low-temperature air drying can be manually set by the control buttons on the surface of PID controller 410. This is an existing publicly available technical means, which will not be described in detail here.

[0024] The working principle and usage process of this utility model are as follows: First, the wheat after washing and preliminary dehydration is fed into the drying box 2 through the feed hopper 1, so that the wheat falls onto the top of the spiral guide plate 902, causing the wheat to slowly descend on the spiral guide plate 902. At the same time, the fan 402 and the heating wire 405 are working. Then, part of the gas generated by the blower 402 enters the heating box 404, and the other part enters the first air distribution plate 5. After being heated by the heating wire 405, the gas in the heating box 404 enters the second air distribution plate 401, so that the wheat is continuously in contact with the low temperature air when it is conveyed on the spiral guide plate 902, thus completing the dynamic drying. Finally, the wheat leaves the drying box 2 and falls onto the belt conveyor 6. The air blown out by the first air distribution plate 5 cools down the wheat on the belt conveyor 6 and dries it again, thus making the wheat dry more thoroughly.

[0025] The industrial control computer 7 in this application is equipped with an existing control system. The above are all technical means disclosed in the existing flour processing technology field. At the same time, the technical solution for wheat air drying in this application does not involve the improvement of the system program. Existing mature control systems can be used in combination with the production needs of flour processing. These systems will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wheat drying device after washing, comprising a drying chamber (2) and an industrial control computer (7), characterized in that: The drying box (2) is equipped with a conveying assembly (9) inside. The drying box (2) is equipped with a low-temperature heating assembly (4). The bottom of the drying box (2) is provided with a discharge port (10). A belt conveyor (6) is provided below the discharge port (10). A first air distribution plate (5) is provided above the belt conveyor (6). The first air distribution plate (5) is connected to the low-temperature heating assembly (4). A centrifugal fan (3) is installed on the top of the drying box (2). A feeding hopper (1) is provided on one side of the top of the drying box (2). The feeding hopper (1) is used to add washed wheat.

2. The wheat washing and drying equipment according to claim 1, characterized in that: The conveying assembly (9) includes a mounting cylinder (901) which is mounted on the inner wall of the drying box (2), and a spiral guide plate (902) is integrally formed and connected to the mounting cylinder (901).

3. The wheat washing and drying equipment according to claim 2, characterized in that: The spiral guide plate (902) is provided with air holes (903) evenly. The top of the spiral guide plate (902) corresponds to the position of the feed hopper (1), and the bottom of the spiral guide plate (902) corresponds to the position of the discharge port (10).

4. The wheat washing and drying equipment according to claim 1, characterized in that: The low-temperature heating component (4) includes a heating box (404) and a fan (402). The heating box (404) and the fan (402) are both installed on one side of the drying box (2). A heating wire (405) is installed inside the heating box (404). An amplifier (409) and a PID controller (410) are installed on the heating box (404). A temperature sensor (408) is installed inside the drying box (2). One end of the temperature sensor (408) is connected to the signal input terminal of the amplifier (409). The signal output terminal of the amplifier (409) is connected to the signal input terminal of the PID controller (410). The signal output terminal of the PID controller (410) is connected to the heating wire (405) through a contactor. The signal output terminal of the PID controller (410) is electrically connected to the input terminal of the fan (402). The air outlet of the fan (402) is connected to a first air duct (403) and a second air duct (407) through a tee.

5. The wheat washing and drying equipment according to claim 4, characterized in that: The first air duct (403) is connected to the heating box (404). The bottom of the heating box (404) is connected to the third air duct (406). One end of the third air duct (406) passes through the drying box (2) and is connected to the second air distribution plate (401). The second air distribution plate (401) is installed on the inner wall of the drying box (2).

6. The wheat washing and drying equipment according to claim 5, characterized in that: The first air distribution plate (5) is installed on one side of the drying box (2), and the top of the first air distribution plate (5) is connected to one end of the second air duct (407).

7. The wheat washing and drying equipment according to claim 1, characterized in that: The drying box (2) is symmetrically equipped with support seats (8) on both sides, and the industrial control computer (7) is installed on one side of the belt conveyor (6).

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