Grain detection dump valve

Abstract

The utility model relates to a kind of grain detection unloading valves, including valve body, the upper end of valve body has feed pipe, the bottom of valve body is connected with discharge pipe, the inner chamber of valve body is rotatably provided with vane shaft, at least six blades of circumferentially uniform distribution are fixed on vane shaft, the rear side of valve body is equipped with infrared spectrometer, and the moisture content of grain flowing through the inner chamber of valve body is detected, the left side of valve body is connected with outer hex nozzle, the outer hex nozzle is connected with high-pressure gas by external gas pipe and is sprayed to the surface of grain flowing through the inner chamber of valve body and removes the impurities attached to the surface of grain.The utility model in real time detects the moisture contained in the grain flowing through the inner chamber of unloading valve by infrared spectrometer, to ensure that the moisture content of stored grain is kept in normal range, and high-pressure gas connected by external gas pipe is sprayed to the surface of grain flowing through the inner chamber of valve body by outer hex nozzle, so as to remove the bran, small weeds and sand and other impurities attached to the surface of grain, to ensure that the stored grain is clean.

Description

Technical Field

[0001] This utility model relates to the field of material conveying technology, and in particular to a grain detection and unloading valve at the discharge port of a negative pressure conveying system for grain conveying. Background Technology

[0002] Negative pressure conveying systems utilize the negative pressure of gas to transport materials from one place to another. They can achieve efficient material transport, and whether the material is powdery or granular, it can be transported quickly and stably to the designated location under negative pressure.

[0003] The discharge valve is a key piece of equipment used in negative pressure conveying systems, mainly for controlling the discharge and cutting off of solid particles or powder materials.

[0004] As a solid particle, grain is typically transported using negative pressure conveying. However, due to the moisture content of grain, appropriate testing instruments are usually required to monitor the moisture content of stored grain to ensure its preservation quality. More importantly, the surface of stored grain often contains impurities such as husks, fine weeds, and grit. These impurities mixed in with the grain can seriously affect its quality and the safety of processed foods. Therefore, it is necessary to separate these impurities from the grain during unloading. Summary of the Invention

[0005] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a grain detection unloading valve that can complete grain moisture detection and impurity separation at the same time as unloading.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a grain detection and unloading valve, including a valve body, an inlet pipe at the upper end of the valve body, an outlet pipe connected to the bottom of the valve body, a blade shaft rotatably provided in the inner cavity of the valve body, at least six blades evenly distributed in the circumference fixed on the blade shaft, an infrared spectrometer for detecting the moisture content of grain flowing through the inner cavity of the valve body provided on the rear side of the valve body, and an external hexagonal nozzle connected to the left side of the valve body. The external hexagonal nozzle introduces high-pressure gas through an external air pipe and sprays it onto the surface of the grain flowing through the inner cavity of the valve body to remove impurities attached to the surface of the grain.

[0007] Specifically, the valve body includes a rectangular body with a conical body fixed to its upper and lower ends respectively. The feed pipe is fixed to the small end of the conical body at the upper end of the rectangular body, and the discharge pipe is fixed to the small end of the conical body at the lower end of the rectangular body.

[0008] Furthermore, a bearing housing is installed on the right side of the rectangular body, and a planetary reducer is fixed on the outer side of the bearing housing. The output shaft of the planetary reducer is connected to the blade shaft for transmission.

[0009] Preferably, the center of the infrared spectrometer probe is located above the blade's rotating surface.

[0010] Furthermore, a transparent viewing window is installed on the left side of the rectangular body, and an external hexagonal nozzle is fixed to the transparent viewing window. A solenoid valve is installed at the lower end of the left side of the rectangular body. The outlet end of the solenoid valve is connected to the external hexagonal nozzle pipeline, and the inlet end of the solenoid valve is connected to an external gas pipe for introducing high-pressure gas through an external hexagonal connector.

[0011] Preferably, the center of the external hexagonal nozzle is located above the blade's rotating surface.

[0012] The beneficial effects of this utility model are: This utility model uses an infrared spectrometer to detect the moisture content of the grain flowing through the inner cavity of the unloading valve in real time, so as to ensure that the moisture content of the stored grain is kept within the normal range. The high-pressure gas introduced by the external air pipe is sprayed through the external hexagonal nozzle onto the surface of the grain flowing through the inner cavity of the valve body, thereby removing impurities such as husks, small weeds and gravel attached to the surface of the grain, so as to ensure that the stored grain is clean. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of this utility model after the valve body is removed.

[0016] In the diagram: 1. Valve body, 1-1. Rectangular body, 1-2. Conical body, 2. Feed pipe, 3. Discharge pipe, 4. Blade shaft, 5. Blade, 6. Infrared spectrometer, 7. External hexagonal nozzle, 8. Bearing housing, 9. Planetary reducer, 10. Viewing window transparent plate, 11. Solenoid valve, 12. External hexagonal connector. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0018] like Figure 1 , Figure 2 The grain detection and unloading valve shown includes a valve body 1, which includes a rectangular body 1-1. A conical body 1-2 is fixedly connected to the upper and lower ends of the rectangular body 1-1, respectively. A feed pipe 2 is fixedly connected to the small end of the conical body 1-2 at the upper end of the rectangular body 1-1, and a discharge pipe 3 is fixed to the small end of the conical body 1-2 at the lower end of the rectangular body 1-1.

[0019] A blade shaft 4 is rotatably mounted inside a rectangular body 1-1 of the valve body 1. Eight blades 5 are fixed on the blade shaft 4 and are evenly distributed around the circumference. A bearing seat 8 is installed on the right side of the rectangular body 1-1. A planetary reducer 9 is fixed on the outer side of the bearing seat 8. The output shaft of the planetary reducer 9 is connected to the blade shaft 4 for transmission.

[0020] The rear side of the valve body 1 is equipped with an infrared spectrometer 6 to detect the moisture content of the grain flowing through the inner cavity of the valve body 1. The infrared spectrometer 6 detects the moisture content of the grain flowing through the inner cavity of the unloading valve in real time to ensure that the moisture content of the stored grain is kept within the normal range.

[0021] The infrared spectrometer 6 is connected to the rear flange of the rectangular body 1-1, and the center of the infrared spectrometer 6 probe is located above the rotating surface of the blade 5.

[0022] A transparent viewing window 10 is installed on the upper left side of the rectangular body 1-1 of the valve body 1, and a solenoid valve 11 is installed on the lower left side of the rectangular body 1-1. An external hexagonal nozzle 7 is fixedly connected to the transparent viewing window 10, and the center of the external hexagonal nozzle 7 is located above the rotating surface of the blade 5.

[0023] The outlet end of the solenoid valve 11 is connected to the external hexagonal nozzle 7 via a pipeline, and the inlet end of the solenoid valve 11 is connected to an external gas pipe through an external hexagonal connector 12 to allow high-pressure gas to enter. The external hexagonal nozzle 7 sprays the high-pressure gas from the external gas pipe onto the surface of the grain flowing through the inner cavity of the valve body 1, thereby removing impurities such as husks, fine weeds, and gravel attached to the surface of the grain to ensure that the stored grain is clean.

[0024] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A grain detection and unloading valve, comprising a valve body (1), an inlet pipe (2) at the upper end of the valve body (1), an outlet pipe (3) connected to the bottom of the valve body (1), and a blade shaft (4) rotatably disposed within the inner cavity of the valve body (1), wherein at least six blades (5) are fixed on the blade shaft (4) and evenly distributed in the circumferential direction, characterized in that: The valve body (1) is provided with an infrared spectrometer (6) on the rear side to detect the moisture content of the grain flowing through the inner cavity of the valve body (1). The valve body (1) is connected to an external hexagonal nozzle (7). The external hexagonal nozzle (7) introduces high-pressure gas through an external air pipe and sprays it onto the surface of the grain flowing through the inner cavity of the valve body (1) to remove impurities attached to the surface of the grain.

2. The grain detection and unloading valve as described in claim 1, characterized in that: The valve body (1) includes a rectangular body (1-1), with a conical body (1-2) fixedly connected to the upper and lower ends of the rectangular body (1-1), the feed pipe (2) being fixedly connected to the small end of the conical body (1-2) at the upper end of the rectangular body (1-1), and the discharge pipe (3) being fixedly connected to the small end of the conical body (1-2) at the lower end of the rectangular body (1-1).

3. The grain detection and unloading valve as described in claim 2, characterized in that: A bearing housing (8) is installed on the right side of the rectangular body (1-1), and a planetary reducer (9) is fixed on the outer side of the bearing housing (8). The output shaft of the planetary reducer (9) is connected to the blade shaft (4) for transmission.

4. The grain detection and unloading valve as described in claim 3, characterized in that: The probe center of the infrared spectrometer (6) is located above the rotating surface of the blade (5).

5. The grain detection and unloading valve as described in claim 3, characterized in that: A transparent viewing window (10) is installed on the left side of the rectangular body (1-1), and an external hexagonal nozzle (7) is fixed on the transparent viewing window (10). A solenoid valve (11) is installed at the lower end of the left side of the rectangular body (1-1). The outlet end of the solenoid valve (11) is connected to the pipeline of the external hexagonal nozzle (7), and the inlet end of the solenoid valve (11) is connected to an external gas pipe through an external hexagonal connector (12) for the introduction of high-pressure gas.

6. The grain detection and unloading valve as described in claim 5, characterized in that: The center of the external hexagonal nozzle (7) is located above the rotating surface of the blade (5).

Images