Apparatus for reducing aflatoxins in corn

Abstract

The utility model belongs to the field of livestock breeding technology, concretely relates to a device for reducing aflatoxin in corn. It is composed of a storage tank, a cleaning pool and a conveying device, characterized in that the storage tank is a V-shaped tank, the angle between the two faces at the bottom of the storage tank is 90 degrees; the cleaning pool is an isosceles trapezoidal tank with a large opening at the upper part and a small opening at the lower part, and the angle between the two waist faces of the cleaning pool is 90 degrees; the conveying device includes a conveying belt; in the production process of the device, the rest of the parts except the scraper do not need manual processing, solving the defects of high cost, low efficiency and long time consumption caused by manual picking and cleaning. The device has simple process, easy operation, low investment cost, high efficiency and no safety hazards caused by manual processing.

Description

Technical Field

[0001] This utility model belongs to the field of animal husbandry technology, and specifically relates to a device for reducing aflatoxin in corn. Background Technology

[0002] Mycotoxins are toxic metabolites produced by molds during food contamination. These toxins enter the human and animal bodies through feed or food, causing acute and chronic poisoning and damaging the liver, kidneys, nervous tissue, hematopoietic tissue, and skin. Aflatoxins are mainly produced by Aspergillus flavus and Aspergillus parasiticus, primarily originating from high-protein grains and feeds such as corn, peanuts, and soybean meal. They are extremely toxic, with aflatoxin B being a particularly potent form. １ It is the most toxic substance and has been classified as a Group 1 carcinogen by the World Health Organization.

[0003] Corn is a crucial feed ingredient in livestock farming. However, corn can easily become moldy during storage, and this moldy corn contains high levels of aflatoxin. Aflatoxin in corn is highly stable, insensitive to heat, and poorly soluble in water, making it difficult to kill at normal temperatures. Currently, there is no technology that can effectively remove aflatoxin from corn. Therefore, how to remove aflatoxin from moldy corn is an urgent problem to be solved in livestock farming. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a device for reducing aflatoxin in corn, thereby reducing the harm of aflatoxin in corn to humans and animals. This utility model is achieved through the following technical solution:

[0005] A device for reducing aflatoxin in corn comprises a storage tank, a washing tank, and a conveying device. The storage tank is a V-shaped tank with a 90-degree angle between its two bottom surfaces. The washing tank is an isosceles trapezoidal tank with a large opening at the top and a small opening at the bottom, with a 90-degree angle between its two side surfaces. Both the storage tank and the washing tank are mounted on fixed supports. The conveying device includes a conveyor belt that passes sequentially through an inclined surface at the bottom of the storage tank, the gap between the storage tank and the washing tank, the first side surface of the washing tank, the bottom surface of the washing tank, and the second side surface of the washing tank. Two fixed rods parallel to the side surfaces are also provided on the top surface of the washing tank, and movable scrapers are mounted on the fixed rods.

[0006] It also includes a dryer, through which the conveyor belt passes after the second side of the washing tank. The dryer is used to dry the washed corn. The dried corn is then bagged directly from the conveyor belt.

[0007] The system also includes a conveyor belt shaft, pressure rollers, and a conveyor belt drive shaft. The conveyor belt drive shaft is located on the outlet side of the dryer and drives the conveyor belt to rotate via a motor. The conveyor belt shaft is located at the bottom of the storage trough, the upper part of the storage trough near the washing tank, and both sides of the upper part of the washing tank. The pressure rollers are located at the junction of the bottom and middle surfaces of the washing tank. The conveyor belt shaft is located below the conveyor belt, and the pressure rollers are located above the conveyor belt. The conveyor belt changes direction via the conveyor belt shaft or the pressure rollers. The conveyor belt has protrusions to prevent corn from slipping during transport. After transporting the corn, the conveyor belt passes through the dryer, crosses the bottom of the washing tank, and finally enters the storage trough from the bottom.

[0008] A placement platform can also be set at the front end of the storage tank to facilitate pouring bagged corn into the storage tank.

[0009] The scraper has a width of 5-10cm; each end of the scraper is provided with a fixed shaft, and the fixed shaft is provided with a hook. The hook is hooked onto the fixed rod, and the scraper is rotatably hung on the fixed rod with the fixed shaft as the axis.

[0010] The center of the cleaning tank is also equipped with a stirring blade, which is driven by a stirring shaft. The stirring shaft passes through the wall of the cleaning tank and is driven by a drive motor.

[0011] The cleaning tank has an outlet at the top of the side near the storage tank and an inlet at the bottom of the side away from the storage tank. Both the outlet and the inlet are equipped with filters.

[0012] Each of the four corners of the upper surface of the cleaning pool is equipped with a bag hook. One bag is hung on each of the two bag hooks. The bag is a filterable bag, and the length of the bag minus the length of the scraper is 10cm.

[0013] The distance between the fixing rod and the adjacent waist surface is 5-7cm.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention uses a conveyor belt to transport corn from a V-shaped storage trough to a washing tank. First, taking advantage of the low specific gravity of moldy corn, it floats naturally in water. The floating moldy corn and impurities are scraped into a collection bag, thus removing most of the corn containing aflatoxin. Then, an agitator is activated to clean the corn, causing friction and removing mold from its surface, further reducing aflatoxin levels. The washed corn is then conveyed to a dryer for drying.

[0016] Except for the scraper, the production process of this utility model requires no manual handling, thus solving the problems of high cost, low efficiency and long time consumption caused by manual picking and cleaning.

[0017] The device of this invention has a simple process, is easy to operate, has low investment cost, eliminates the safety hazards of manual handling, and is highly efficient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the cleaning tank of this utility model;

[0020] Figure 3 This is a schematic diagram of the conveying device of this utility model;

[0021] Figure 4 This is a schematic diagram of the scraper structure of this utility model;

[0022] In the diagram: 1-Storage tank, 2-Washing pool, 3-Conveying device, 4-Waist surface, 5-Conveyor belt, 6-Bottom surface of the washing pool, 7-Fixing rod, 8-Dryer, 9-Conveyor belt shaft, 10-Pressure roller, 11-Agitating blade, 12-Agitating shaft, 13-Outlet, 14-Inlet, 15-Filter screen, 16-Collection bag hook, 17-Fixing bracket, 18-Placement platform, 19-Drive motor, 20-Conveyor belt drive shaft, 21-Motor, 22-Scraper, 23-Fixing shaft, 24-Hook, 25-Collection bag. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, but the scope of protection of the present invention is not limited by the embodiments. Example 1

[0024] like Figure 1 As shown, a device for reducing aflatoxin in corn comprises a storage tank, a washing tank, a dryer, and a conveying device, such as... Figure 2 As shown, the storage compartment is a V-shaped groove, and the included angle between the two bottom surfaces of the storage compartment is 90 degrees; Figure 3 As shown, the cleaning tank is an isosceles trapezoidal trough with a large opening at the top and a small opening at the bottom, and the included angle between the two side faces of the cleaning tank is 90 degrees; both the storage tank and the cleaning tank are mounted on a fixed support; as Figure 4As shown, the conveying device includes a conveyor belt that sequentially passes through an inclined surface at the bottom of a storage trough, the gap between the storage trough and the washing tank, the first side surface of the washing tank, the bottom surface of the washing tank, and the second side surface of the washing tank. After passing the second side surface of the washing tank, the conveyor belt passes through a dryer used to dry the washed corn. The conveying device also includes a conveyor belt shaft, pressure rollers, and a conveyor belt drive shaft. The conveyor belt drive shaft is located on the outlet side of the dryer and drives the conveyor belt to rotate via a motor. The conveyor belt shaft is located at the bottom of the storage trough, the upper part of the storage trough near the washing tank, and both sides of the upper part of the washing tank. The pressure rollers are located at the junction of the bottom and side surfaces of the washing tank. The conveyor belt shaft is located below the conveyor belt, and the pressure rollers are located above the conveyor belt. The conveyor belt changes direction via the conveyor belt shaft or the pressure rollers. The conveyor belt has protrusions to prevent the corn from slipping during transport. After conveying the corn, the conveyor belt passes through the dryer, passes through the bottom of the washing tank, and finally enters the storage trough from the bottom. The dried corn is directly bagged from the conveyor belt. Two fixed rods parallel to the waist surface are installed on the top surface of the washing tank, with a distance of 5cm between the fixed rods and the adjacent waist surface. Movable scrapers are installed on the fixed rods. The scrapers are 5cm wide; each end of the scraper has a fixed shaft with a hook. The hook of the hook is attached to the fixed rod, and the scraper is rotatably hung on the fixed rod around the fixed shaft. A stirring blade is also installed at the center of the washing tank, driven by a stirring shaft that passes through the tank wall and is driven by a drive motor. An outlet is located at the top of the washing tank near the storage tank, and an inlet is located at the bottom of the washing tank away from the storage tank. Both the outlet and inlet are equipped with filters. A bag-collecting hook is located at each of the four corners of the upper surface of the washing tank. One bag, which is a filter bag, is hung on each of the two hooks. The length of the bag minus the length of the scraper is 10cm.

[0025] In operation, corn is poured into the storage tank, with the inlet pipe connected to the inlet and the outlet pipe connected to the outlet. The washing tank is filled with water, and water is continuously added and drained. The motor is started, driving the conveyor belt drive shaft, which in turn moves the conveyor belt, transporting the corn from the storage tank to the washing tank. In the washing tank, taking advantage of the low density of moldy corn, which floats naturally in water, the floating moldy corn and impurities are scraped into a collection bag using a scraper, thus removing most of the aflatoxin-containing corn. Then, the drive motor is started, driving the stirring shaft, which in turn rotates the stirring blades. The blades agitate the corn, causing friction between the corn grains and the water flow to cleanse the surface, removing mold and further reducing aflatoxin levels. After washing, the corn is conveyed to a dryer and dried before being bagged. Example 2

[0026] The distance between the fixing rod and the adjacent waist surface is 7cm, and the width of the scraper is 10cm; a placement platform can also be set at the front end of the storage trough to facilitate pouring the bagged corn into the storage trough.

[0027] The drainage pipe is connected to a sewage treatment plant, where the wastewater is purified and discharged after meeting the standards. Moldy corn and impurities floating on the water surface are scraped off the side of the cleaning tank using a scraper. Rotating the scraper removes the floating moldy corn and impurities from the water. The removed impurities and moldy corn are then placed in a receiving bag, drained, and incinerated.

[0028] The rest is the same as in Example 1. Example 3

[0029] The distance between the fixing rod and the adjacent waist surface is 6cm, and the width of the scraper is 8cm; the rest is the same as in Embodiment 2.

Claims

1. A device for reducing aflatoxin in corn, comprising a storage tank, a washing pool, and a conveying device, characterized in that, The storage trough is a V-shaped trough, with an included angle of 90 degrees between the two bottom surfaces; the washing tank is an isosceles trapezoidal trough with a large opening at the top and a small opening at the bottom, with an included angle of 90 degrees between the two side surfaces; the conveying device includes a conveyor belt that passes sequentially through an inclined surface at the bottom of the storage trough, the gap between the storage trough and the washing tank, the first side surface of the washing tank, the bottom surface of the washing tank, and the second side surface of the washing tank; the top surface of the washing tank is also provided with two fixed rods parallel to the side surfaces, and the fixed rods are equipped with movable scrapers; the device also includes a dryer, and the conveyor belt passes through the dryer after passing the second side surface of the washing tank.

2. The device for reducing aflatoxin in corn according to claim 1, characterized in that, It also includes a conveyor belt shaft, pressure rollers, and a conveyor belt drive shaft. The conveyor belt drive shaft is located on the outlet side of the dryer and drives the conveyor belt to rotate via a motor. The conveyor belt shaft is located at the bottom of the storage tank, the upper part of the storage tank near the washing tank, and both sides of the upper part of the washing tank. The pressure rollers are located at the junction of the bottom and middle surfaces of the washing tank. The conveyor belt changes direction via the conveyor belt shaft or the pressure rollers.

3. The device for reducing aflatoxin in corn according to claim 1, characterized in that, The scraper has a width of 5-10cm; each end of the scraper is provided with a fixed shaft, and the fixed shaft is provided with a hook. The hook is hooked onto the fixed rod, and the scraper is rotatably hung on the fixed rod with the fixed shaft as the axis.

4. The device for reducing aflatoxin in corn according to claim 1, characterized in that, The center of the cleaning tank is also equipped with a stirring blade, which is driven by a stirring shaft. The stirring shaft passes through the wall of the cleaning tank and is driven by a drive motor.

5. The device for reducing aflatoxin in corn according to claim 1, characterized in that, The cleaning tank has an outlet at the top of the side closest to the storage tank, and an inlet at the bottom of the side furthest from the storage tank.

6. The device for reducing aflatoxin in corn according to claim 5, characterized in that, Both the water outlet and the water inlet are equipped with filter screens.

7. The device for reducing aflatoxin in corn according to claim 1, characterized in that, Each of the four corners of the upper surface of the washing pool is equipped with a hook for receiving bags.

8. The device for reducing aflatoxin in corn according to claim 7, characterized in that, One receiving bag is hung on each of the two receiving bag hooks. The receiving bag is a water-filtering bag, and the length of the receiving bag minus the length of the scraper is 10cm.

9. The device for reducing aflatoxin in corn according to claim 1, characterized in that, The distance between the fixing rod and the adjacent waist surface is 5-7cm.

Images