An inactivation treatment apparatus for imported grain by-products

Abstract

The utility model relates to the technical field of grain processing equipment discloses a kind of inactivation treatment equipment for imported grain by-products, the feed inlet of unloader is communicated with the first discharge pipeline by first conveying pipeline, and the air extraction opening of unloader is connected with negative pressure fan;The discharge outlet of unloader is communicated with the feed inlet of conditioner by second conveying pipeline;The discharge outlet of conditioner is communicated with the feed inlet of heat preservation tank by third conveying pipeline;The discharge outlet of heat preservation tank is communicated with the feed inlet of second screw conveyor by fourth conveying pipeline;Second discharge pipeline is communicated with the feed inlet of drying machine by fifth conveying pipeline, and fifth conveying pipeline is communicated with the discharge outlet of second screw conveyor by sixth conveying pipeline, the utility model solves the technical defects that existing cannot be flexibly selected processing mode according to the characteristics of different materials, material is prone to uneven distribution, the problem of accumulation agglomeration in the heat preservation process.

Description

Technical Field

[0001] This utility model relates to the technical field of grain processing equipment and discloses an inactivation treatment device for imported grain by-products. Background Technology

[0002] Imported grain by-products, such as wheat bran, soybean meal, and rice bran, may carry various harmful organisms, such as insect eggs, pathogens, and weed seeds, during cross-border transportation. Direct use or distribution of these by-products could pose a serious threat to domestic agricultural ecological security. Therefore, imported grain by-products must undergo strict inactivation treatment upon entry into China.

[0003] Existing inactivation equipment uses a single processing path and cannot flexibly select the processing method according to the characteristics of different materials, such as conditioning, heat preservation, or drying. This results in some materials being incompletely inactivated or over-treated, causing nutrient loss. During the heat preservation process, materials are prone to uneven distribution and clumping, resulting in uneven heating of local materials and affecting the inactivation effect. Utility Model Content

[0004] This invention addresses the technical shortcomings of existing technologies, such as the inability to flexibly select processing methods based on the characteristics of different materials and the tendency for materials to become unevenly distributed and clump together during the heat preservation process. It provides an inactivation treatment device for imported grain by-products.

[0005] To achieve the above-mentioned technical effects, the technical solution adopted by this utility model is as follows: a sterilization treatment device for imported grain by-products, comprising a first screw conveyor, a dryer, a unloader, a conditioner, a heat preservation tank, and a second screw conveyor. The first screw conveyor is provided with a first discharge pipe and a second discharge pipe for diverting materials, and both the first and second discharge pipes are connected to flow valves. The inlet of the unloader is connected to the first discharge pipe through a first conveying pipe, and the exhaust port of the unloader is connected to a negative pressure fan. The outlet of the unloader is connected to the inlet of the conditioner through a second conveying pipe. The steam port of the conditioner is connected to an electric boiler through a steam pipe. The outlet of the conditioner is connected to the inlet of the heat preservation tank through a third conveying pipe. The outlet of the heat preservation tank is connected to the inlet of the second screw conveyor through a fourth conveying pipe. The second discharge pipe is connected to the inlet of the dryer through a fifth conveying pipe, and the fifth conveying pipe is connected to the outlet of the second screw conveyor through a sixth conveying pipe.

[0006] In a preferred embodiment, a fabric box is connected to the third conveying pipe. The fabric box is located inside the insulation tank. The bottom of the fabric box has several discharge holes. An adjusting plate is rotatably connected to the fabric box. The adjusting plate has several adjusting holes corresponding to the discharge holes. A rotating shaft is rotatably connected to the adjusting plate. The rotating shaft is rotatably connected to the adjusting plate, and a scraper that cooperates with the adjusting plate is fixedly connected to the rotating shaft. A limiting component is provided on the rotating shaft to drive the adjusting plate and the rotating shaft to rotate synchronously. A first motor is fixedly connected to the bottom of the fabric box. The rotating shaft is driven by the first motor. A heat insulation box is installed on the fabric box. The first motor is located inside the heat insulation box, and a heat dissipation pipe is connected to the heat insulation box, extending to the outside of the insulation tank.

[0007] In a preferred embodiment, the limiting component includes an electromagnet, an armature, and a return spring. A sealing box is mounted on the rotating shaft, and a sealing groove that mates with the sealing box is provided on the adjusting plate. A limiting groove is provided on the adjusting plate, and an installation groove is provided on the inner side wall of the sealing box. The electromagnet is installed in the installation groove, and a limiting block is slidably connected in the installation groove. An armature is mounted on the limiting block, and several return springs are connected between the electromagnet and the armature.

[0008] In a preferred embodiment, a stirring shaft is rotatably connected to the bottom of the insulated tank, and a plurality of stirring plates are connected to the stirring shaft at circumferential intervals; a base is installed at the bottom of the insulated tank, and a second motor for driving the stirring shaft is connected to the base; the fifth conveying pipe passes through the base and extends to the outside.

[0009] As a preferred embodiment, the conditioner is provided with a steam distribution plate located above the inner cavity of the conditioner, which is used to uniformly spray steam from the electric boiler onto the surface of the material.

[0010] As a preferred embodiment, the outer wall of the insulated tank is provided with an insulation layer, which is made of rock wool or polyurethane material.

[0011] As a preferred embodiment, it also includes a PLC control unit for centralized control of the operating status and parameter adjustment of the first screw conveyor, the second screw conveyor, the unloader, the conditioner, the heat preservation tank, the dryer, the flow valve, and the first motor and the second motor.

[0012] Compared with existing technologies, the dual-path diversion design allows for flexible selection of conditioning, heat preservation, or drying treatment methods based on material characteristics. It can also operate two paths simultaneously, significantly improving processing efficiency and adapting to different inactivation needs. The material distribution box, in conjunction with the stirring shaft, ensures uniform material feeding and distribution within the tank, preventing clumping and ensuring even heating and steam treatment of the material, thus enhancing the thoroughness of inactivation. The limiting component allows for flexible switching of the adjustment disc's working state, enabling both synchronous rotation of the auxiliary material feeding mechanism and independent adjustment of the feeding rate, facilitating operation and adapting to different material flow requirements. The insulation layer and heat insulation box design respectively ensure the temperature stability of the insulated tank and the normal operation of the motor, improving equipment operational stability. The PLC control unit achieves fully automated control of the entire process, reducing manual intervention, minimizing operational errors, and improving equipment operating efficiency and reliability. Attached Figure Description

[0013] Figure 1 This is a diagram showing the overall connection structure of this utility model; Figure 2 This is a perspective view of the insulated tank of this utility model; Figure 3 This is a three-dimensional sectional view of the insulated tank of this utility model; Figure 4 This is one of the three-dimensional cross-sectional views of the fabric box of this utility model; Figure 5 for Figure 4 A local method diagram; Figure 6 This is the second perspective sectional view of the fabric box of this utility model; Figure 7 for Figure 6 The B-local method diagram; Figure 8 This is a schematic diagram of the structure of the adjustment disc of this utility model.

[0014] Figure label: 1. First screw conveyor; 101. First discharge pipe; 102. Second discharge pipe; 103. Flow valve; 2. Dryer; 3. Unloader; 4. Conditioner; 41. Electric boiler; 5. Insulated container; 51. Fabric box; 52. Feeding hole; 53. Adjusting plate; 54. Adjusting hole; 55. Rotating shaft; 56. Scraper; 57. First motor; 58. Heat insulation box; 59. Heat dissipation pipe; 501. Electromagnet; 502. Armature; 503. Return spring; 504. Sealing box; 505. Sealing groove; 506. Limiting groove; 507. Mounting groove; 508. Limiting block; 5011, Stirring shaft; 5012, Stirring plate; 5013, Base; 5014, Second motor; 6. Second screw conveyor; 7. First conveying pipeline; 8. Negative pressure fan; 9. Second conveying pipeline; 10. Steam pipeline; 11. Third conveying pipeline; 12. Fourth conveying pipeline; 13. Fifth conveying pipeline; 14. Sixth conveying pipeline. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. However, this should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0016] refer to Figure 1 Example 1: An inactivation treatment device for imported grain by-products, comprising a first screw conveyor 1, a dryer 2, a unloader 3, a conditioner 4, an insulated tank 5, a second screw conveyor 6, an electric boiler 41, a negative pressure fan 8, and a PLC control unit.

[0017] The first screw conveyor 1 is equipped with a first discharge pipe 101 and a second discharge pipe 102. Both pipes are equipped with flow valves 103 for flexible adjustment of the material distribution ratio. The first discharge pipe 101 is connected to the inlet of the unloader 3 via the first conveying pipe 7. The exhaust port of the unloader 3 is connected to a negative pressure fan 8, which assists in smooth material feeding and avoids blockage through negative pressure adsorption. The discharge port of the unloader 3 is connected to the inlet of the conditioner 4 via the second conveying pipe 9. The steam port of the conditioner 4 is connected to a steam pipe. 10 is connected to electric boiler 41, which provides stable steam for the conditioning process. The outlet of the conditioner 4 is connected to the inlet of the insulation tank 5 through the third conveying pipe 11. The outlet of the insulation tank 5 is connected to the inlet of the second screw conveyor 6 through the fourth conveying pipe 12. The second discharge pipe 102 is connected to the inlet of the dryer 2 through the fifth conveying pipe 13. The fifth conveying pipe 13 and the outlet of the second screw conveyor 6 are connected through the sixth conveying pipe 14, realizing the material convergence and output of the two processing paths.

[0018] refer to Figure 2 , Figure 3 , Figure 4 , Figure 8 A material distribution box 51 is connected to the third conveying pipe 11. The material distribution box 51 is fixed inside the heat preservation tank 5, and its bottom has several evenly distributed discharge holes 52. An adjusting plate 53 is rotatably connected inside the material distribution box 51. The adjusting plate 53 has adjusting holes 54 that correspond one-to-one with the discharge holes 52. By rotating the adjusting plate 53, the overlapping area of ​​the discharge holes 52 and the adjusting holes 54 can be changed, thereby adjusting the discharge speed and uniformity.

[0019] A rotating shaft 55 is rotatably connected to the adjusting disc 53, and a scraper 56 is fixedly connected to the rotating shaft 55. The scraper 56 is in contact with the inner wall of the fabric box 51 and can scrape off the attached material to prevent blockage. The rotating shaft 55 is driven by a first motor 57 installed at the bottom of the fabric box 51. A heat insulation box 58 is fixed on the fabric box 51, and the first motor 57 is placed inside the heat insulation box 58. A heat dissipation pipe 59 extending to the outside of the heat insulation tank 5 is connected to the heat insulation box 58 to prevent high temperature from affecting the normal operation of the motor.

[0020] refer to Figure 4 , Figure 5 , Figure 6 , Figure 7 A limiting assembly is provided on the rotating shaft 55 to drive the adjusting disk 53 to rotate synchronously with the rotating shaft 55. The limiting assembly includes an electromagnet 501, an armature 502, a return spring 503, a sealing box 504, and a limiting block 508. The sealing box 504 is installed on the rotating shaft 55. The adjusting disk 53 has a sealing groove 505 adapted to the sealing box 504. The adjusting disk 53 has a limiting groove 506. The inner side wall of the sealing box 504 has an installation groove 507. The electromagnet 501 is fixed in the installation groove 507. The limiting block 508 is slidably connected in the installation groove 507. The armature 502 is installed at the end of the limiting block 508 near the electromagnet 501. The return spring 503 is connected between the electromagnet 501 and the armature 502. When the electromagnet 501 is energized, the armature 502 attracts the limiting block 508 to engage with the limiting groove 506, causing the adjusting disc 53 to rotate synchronously with the rotating shaft 55, thus controlling the feeding speed. When the power is off, the reset spring 503 pushes the limiting block 508 to reset, the first motor 57 drives the rotating shaft 55 to rotate, and the scraper 56 rotates accordingly, preventing material from accumulating in the cloth box 51.

[0021] refer to Figure 3 The bottom of the heat preservation tank 5 is rotatably connected to a stirring shaft 5011. Several stirring plates 5012 are fixed on the stirring shaft 5011 and evenly spaced along the circumference. A base 5013 is installed at the bottom of the heat preservation tank 5. A second motor 5014 for driving the stirring shaft 5011 is fixed on the base 5013. The fifth conveying pipe 13 extends through the base 5013 to the outside to avoid interference with the stirring structure.

[0022] The conditioner 4 is equipped with a steam distribution plate located above the inner cavity of the conditioner 4. The surface of the steam distribution plate has several small spray holes, which can evenly spray the steam delivered by the electric boiler 41 onto the surface of the material to ensure that the material is in full contact with the steam.

[0023] The outer wall of the insulated tank 5 is covered with an insulation layer made of rock wool or polyurethane material, which has a good heat insulation effect and can maintain a stable temperature inside the tank. The temperature inside the insulated tank 5 is controlled above 80℃.

[0024] The PLC control unit is electrically connected to the first screw conveyor 1, the second screw conveyor 6, the unloader 3, the conditioner 4, the heat preservation tank 5, the dryer 2, the flow valve 103, the first motor 57, the second motor 5014, the electric boiler 41, and the negative pressure fan 8, and is used to centrally control the operating status and parameter adjustment of each component.

[0025] Before starting the equipment, the operating parameters of each component are set via the PLC control unit, including the conveying speed of the first screw conveyor 1, the opening degree of the flow valve 103, the steam pressure of the electric boiler 41, the insulation temperature of the insulation tank 5, and the rotational speeds of the first motor 57 and the second motor 5014. Imported grain by-products enter the first screw conveyor 1 through the feeding device. Based on the material characteristics, the PLC control unit controls the corresponding flow valve 103 to open. For materials with high humidity that require steam conditioning and inactivation, the flow valve 103 of the first discharge pipe 101 is opened, and the flow valve 103 of the second discharge pipe 102 is closed. The material enters the unloader 3 through the first conveying pipe 7. The negative pressure fan 8 is started to generate negative pressure, which helps the material to quickly enter the conditioner 4. The electric boiler 41 is started to generate steam, which is conveyed to the steam distribution plate through the steam pipe 10 and evenly sprayed onto the surface of the material in the conditioner 4 to condition and heat the material. The conditioned material enters the cloth box 51 through the third conveying pipe 11, and the first motor 57 drives the rotating shaft 55 to rotate. According to the feeding speed in the heat preservation tank 5, the limiting component is adjusted. When the electromagnet 501 is energized, the limiting block 508 is engaged in the limiting groove 506 of the adjusting plate 53. The adjusting plate 53 rotates synchronously with the rotating shaft 55. The feeding speed is controlled by adjusting the gap between the adjusting hole 54 and the feeding hole 52. After the adjustment is completed, the electromagnet 501 is de-energized, and the limiting block 508 is disengaged from the limiting groove 506 of the adjusting plate 53. At this time, the rotating shaft 55 rotates, driving the scraper 56 to scrape off the material on the inner wall of the cloth box 51. The material falls evenly into the heat preservation tank 5 through the feeding hole 52. The rotation speed of the rotating shaft 55 is set to rotate slowly at a uniform speed. The second motor 5014 drives the stirring shaft 5011 to rotate, and the stirring plate 5012 stirs the material to prevent accumulation. The material is kept at the set temperature in the heat preservation tank 5 for no less than 5 minutes to complete the inactivation. Finally, it enters the second screw conveyor 6 through the fourth conveying pipe 12 and is output by the second screw conveyor 6.

[0026] For materials with low humidity that need to be dried and deactivated, the flow valve 103 of the first discharge pipe 101 is closed and the flow valve 103 of the second discharge pipe 102 is opened. The material enters the dryer 2 through the fifth conveying pipe 13. The dried material can be output by merging with the material in the second screw conveyor 6 through the sixth conveying pipe 14, or directly output independently.

[0027] During equipment operation, the PLC control unit monitors the operating status of each component in real time. If any abnormal parameters or faults occur, it will issue an alarm signal in a timely manner and can automatically adjust parameters or stop the machine to ensure the safe and stable operation of the equipment.

[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for inactivating imported grain by-products, comprising a first screw conveyor (1), a dryer (2), a discharger (3), a conditioner (4), a heat preservation tank (5), and a second screw conveyor (6), characterized in that, The first screw conveyor (1) is provided with a first discharge pipe (101) and a second discharge pipe (102) for diverting materials, and both the first discharge pipe (101) and the second discharge pipe (102) are connected to flow valves (103); the feed inlet of the unloader (3) is connected to the first discharge pipe (101) through the first conveying pipe (7), and the exhaust port of the unloader (3) is connected to a negative pressure fan (8); the discharge port of the unloader (3) is connected to the feed inlet of the conditioner (4) through the second conveying pipe (9); the conditioner (4) The steam outlet is connected to the electric boiler (41) via the steam pipe (10); the outlet of the conditioner (4) is connected to the inlet of the heat preservation tank (5) via the third conveying pipe (11); the outlet of the heat preservation tank (5) is connected to the inlet of the second screw conveyor (6) via the fourth conveying pipe (12); the second discharge pipe (102) is connected to the inlet of the dryer (2) via the fifth conveying pipe (13), and the fifth conveying pipe (13) is connected to the outlet of the second screw conveyor (6) via the sixth conveying pipe (14).

2. The inactivation treatment equipment for imported grain by-products according to claim 1, characterized in that, A fabric box (51) is connected to the third conveying pipe (11). The fabric box (51) is located inside the heat preservation tank (5). Several discharge holes (52) are opened at the bottom of the fabric box (51). An adjusting plate (53) is rotatably connected to the fabric box (51). Several adjusting holes (54) corresponding to the discharge holes (52) are provided on the adjusting plate (53). A rotating shaft (55) is rotatably connected to the adjusting plate (53). The rotating shaft (55) is rotatably connected to the adjusting plate (53), and a fixed connection is made to the rotating shaft (55) with the adjusting plate (53). 53) The scraper (56) is used in conjunction with the rotating shaft (55) and a limiting component is provided on the rotating shaft (55) for driving the adjusting plate (53) to rotate synchronously with the rotating shaft (55). The bottom of the fabric box (51) is fixedly connected to a first motor (57), the rotating shaft (55) is driven by the first motor (57), the fabric box (51) is equipped with a heat insulation box (58), the first motor (57) is located inside the heat insulation box (58), and the heat insulation box (58) is connected to a heat dissipation pipe (59), the heat dissipation pipe (59) extends to the outside of the heat preservation tank (5).

3. The inactivation treatment equipment for imported grain by-products according to claim 2, characterized in that, The limiting assembly includes an electromagnet (501), an armature (502), and a return spring (503). A sealing box (504) is installed on the rotating shaft (55). A sealing groove (505) that cooperates with the sealing box (504) is opened on the adjusting plate (53). A limiting groove (506) is opened on the adjusting plate (53). An installation groove (507) is opened on the inner side wall of the sealing box (504). The electromagnet (501) is installed in the installation groove (507). A limiting block (508) is slidably connected in the installation groove (507). An armature (502) is installed on the limiting block (508). Several return springs (503) are connected between the electromagnet (501) and the armature (502).

4. The inactivation treatment equipment for imported grain by-products according to claim 2, characterized in that, The bottom of the insulated tank (5) is rotatably connected to a stirring shaft (5011), and a number of stirring plates (5012) are connected to the stirring shaft (5011) at intervals along the circumference; a base (5013) is installed at the bottom of the insulated tank (5), and a second motor (5014) for driving the stirring shaft (5011) is connected to the base (5013); the fifth conveying pipe (13) passes through the base (5013) and extends to the outside.

5. The inactivation treatment equipment for imported grain by-products according to claim 1, characterized in that, The conditioner (4) is equipped with a steam distribution plate located above the inner cavity of the conditioner (4) to uniformly spray steam from the electric boiler (41) onto the surface of the material.

6. The inactivation treatment equipment for imported grain by-products according to claim 1, characterized in that, The outer wall of the insulated tank (5) is provided with an insulation layer, which is made of rock wool or polyurethane material.

7. The inactivation treatment equipment for imported grain by-products according to claim 1, characterized in that, It also includes a PLC control unit for centralized control of the operating status and parameter adjustment of the first screw conveyor (1), the second screw conveyor (6), the unloader (3), the conditioner (4), the heat preservation tank (5), the dryer (2), the flow valve (103), the first motor (57), and the second motor (5014).

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