Airflow-driven grain surface mold particle separation equipment

Abstract

The utility model relates to airflow-driven grain surface mold particle separation equipment, which comprises a cylindrical grinding cavity, an air inlet, an air outlet, a dust collector, a dust collector, a dust collector and a dust collector, wherein the grinding cavity is provided with a feed port at one end and a discharge port at the other end; the airflow driving mechanism comprises air inlet holes (annularly arrayed in the inner ring of the end surface of the feeding hole) and exhaust holes; the rotary driving mechanism is fixed at one end, corresponding to the feeding hole, of the grinding cavity, and a rotary shaft extends into the grinding cavity; the fixed disc is of an annular structure, a feeding port is formed in the middle of the fixed disc, a first exhaust opening is formed in an inner ring, first grinding areas are arranged on an outer ring, and the first grinding areas are separated by first pushing protrusions; the rotating disc is vertically fixed at the end part of the rotating shaft, an inner ring is provided with second grinding areas, an outer ring is provided with second exhaust openings, and the second grinding areas are separated by second pushing bulges; the first pushing bulge is in sliding contact with the outer ring of the rotating disc, and the second pushing bulge is in sliding contact with the inner ring of the fixed disc; according to the equipment, grain surface mould particles are separated through airflow driving and rotation driving.

Description

Technical Field

[0001] The utility model discloses an airflow-driven grain surface mold particle separation device, which relates to the field of grain detection equipment. Background Art

[0002] The surface of grains may produce mold spots due to Aspergillus flavus, Aspergillus ochraceus, etc., and the mold spots will be rich in aflatoxins and ochratoxins produced by Aspergillus flavus and Aspergillus ochraceus; therefore, it is necessary to conduct relevant tests on the grains in advance. In the existing technology, the detection of grains is mainly carried out by soaking or grinding the grains to separate the test samples, and the test samples are tested and analyzed by various analytical methods; however, because the location of the moldy grains is relatively random, and because the test samples in the existing methods require the grains to be soaked or ground, currently only random sampling of grains can be carried out, and large quantities of grains cannot be fully inspected. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the technical problems in the prior art and provide an airflow-driven grain surface mold particle separation device.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] An airflow-driven grain surface mold particle separation device; comprising:

[0006] The grinding chamber is a cylindrical structure, a feed port is arranged in the middle of one axial end of the grinding chamber, and a discharge port is arranged on the side wall of the other axial end of the grinding chamber;

[0007] The airflow driving mechanism includes air inlet holes, which are arranged in an annular array on the inner circle of the end surface of one end of the feed inlet of the grinding chamber, and the airflow driving mechanism also includes exhaust holes, which are arranged in an annular array on the outer circle of the end surface at the rear end position of the grinding chamber, and the rear end position is located at the end facing away from the feed inlet;

[0008] A rotary drive mechanism, the rotary drive mechanism is fixed to one axial end of the grinding chamber corresponding to the feed inlet position, and the rotary shaft of the rotary drive mechanism extends into the grinding chamber through the feed inlet;

[0009] The grinding disc group includes a fixed disc and a rotating disc, a grain discharge gap is arranged between the rotating disc and the inner wall of the side of the grinding chamber, wherein the fixed disc is fixed to one end of the grinding chamber corresponding to the feed port position, the fixed disc is an annular structure, the feed port is located in the middle of the fixed disc, a plurality of first exhaust openings are arranged in an inner ring array of the fixed disc, an exhaust net with a mesh structure is inlaid in the first exhaust opening, a plurality of first grinding areas are arranged in an outer ring array of the fixed disc, a mesh-shaped grinding protrusion is arranged on the surface of the first grinding area, the first grinding areas are separated by a first pushing protrusion, and the first pushing protrusion is inclined to the fixed disc. The radial axis of the fixed disk is arranged; wherein the rotating disk is vertically fixed to the end of the rotating shaft of the rotating drive mechanism, the inner ring array of the rotating disk is arranged with a plurality of second grinding areas, the surfaces of the second grinding areas are provided with mesh grinding protrusions, the second grinding areas are separated by second push protrusions, the second push protrusions are arranged inclined to the radial axis of the fixed disk, the outer ring array of the rotating disk is arranged with a plurality of second exhaust openings, and an exhaust net with a mesh structure is embedded in the second exhaust opening; wherein the first push protrusion is in sliding contact with the outer ring surface of the rotating disk, and the second push protrusion is in sliding contact with the inner ring surface of the fixed disk.

[0010] As a further improvement of the utility model, a disc rack is fixed at the end of the rotating shaft, the rotating disc is fixed to the disc rack, and a plurality of third exhaust openings are arranged in an annular array on the outer ring of the disc rack;

[0011] The disc frame structure can improve the supporting strength of the rotating disc, and the distance between the rotating disc and the fixed disc can be easily adjusted by increasing the number of gaskets between the rotating disc and the disc frame to achieve compatibility with different grains.

[0012] As a further improvement of the utility model, a plurality of material-blocking protruding strips are arranged in an annular array on the outer ring of the disk rack;

[0013] The material blocking protrusion strip can sweep the grains moved to the outer ring of the rotating disk and the fixed disk to the discharge port for discharge.

[0014] As a further improvement of the present invention, an electrostatic adsorption disk is fixed on one end of the grinding chamber corresponding to the position where the exhaust hole is arranged;

[0015] The electrostatic adsorption plate can adsorb the smaller toxin particles in the dust produced by grinding. After a period of time, the adsorbed particles can be quickly detected by removing the electrostatic adsorption plate, thereby improving the detection efficiency.

[0016] As a further improvement of the utility model, a plurality of limit pins are fixed in an annular array on the axial end of the grinding chamber, and a clamping spring is rotatably connected to the end of the limit pin, and the clamping spring is pressed against the outer ring of the electrostatic adsorption disk;

[0017] The limit pin and the clamping spring can facilitate the removal and installation of the line of sight electrostatic adsorption plate quickly and easily.

[0018] As a further improvement of the utility model, a gas collecting chamber is connected to the rear end of the grinding chamber, an exhaust pipe is connected to the rear end of the gas collecting chamber, and a filter screen is fixed in the middle of the gas collecting chamber;

[0019] The air collecting chamber can conveniently collect and filter the exhausted air to prevent pollution to the environment.

[0020] As a further improvement of the utility model, a support ring is integrally fixed to the inner ring of the gas collecting chamber, a clamping ring is interference fit on the inner wall of the gas collecting chamber, and the outer ring of the filter screen is fixed between the clamping ring and the support ring;

[0021] The clamping ring and the supporting ring can conveniently install and disassemble the filter.

[0022] As a further improvement of the utility model, a feed chamber is connected to the front end of the grinding chamber at a position corresponding to the feed port, the feed chamber is fixedly connected to the feed port, a rotary drive mechanism is fixed to the front end of the feed chamber, a spiral feed paddle is fixed to the end of the rotating shaft, a rotating disk is fixed to the end of the feed paddle, and a feed pipe is vertically fixed to the side wall of the feed chamber;

[0023] The setting of the feeding mechanism can realize the continuous and stable input of materials, and can prevent the grinding disc group from getting stuck due to excessive feeding directly into the feeding port.

[0024] As a further improvement of the present invention, an air inlet chamber is connected to the front end of the grinding chamber corresponding to the position of the feed port, the air inlet chamber is arranged on the periphery of the feed chamber, the feed pipe penetrates the wall of the air inlet chamber, an air inlet pipe is fixed to the front end of the air inlet chamber, and the rear end of the air inlet chamber is connected to each air inlet hole. The air inlet chamber can be connected to each air inlet hole through a single air inlet pipe.

[0025] The beneficial effects of the utility model are:

[0026] The utility model designs a set of grinding mechanism and airflow mechanism, through the fixed plate and the rotating plate with exhaust opening and the grinding area, while grinding the surface of the grain, the dust generated by grinding the surface of the grain is blown out by the exhaust opening; in the process of lightly grinding the grain, the fallen materials on the surface of the grain can be sampled, compared with the whole grinding or soaking in the prior art, the equipment can continuously collect the surface of large quantities of grains, and in addition, by adjusting the spacing between the grinding plate groups, it can adapt to grains of different particle sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a cross-sectional schematic diagram of the utility model;

[0029] Figure 2 It is a schematic diagram of the structure of the fixed disk;

[0030] Figure 3 It is a structural schematic diagram of a rotating disk;

[0031] In the figure: 1. grinding chamber shell; 2. supporting tray; 3. electrostatic adsorption disk; 4. clamping spring; 5. tail end cover; 6. air inlet chamber shell; 7. air inlet pipe; 8. air inlet hole; 9. rotating motor; 10. feeding pipe; 11. feeding paddle; 12. feeding chamber; 13. discharging port; 14. disk rack; 15. third exhaust opening; 16. material blocking protrusion strip; 17. fixed disk; 17-1. first grinding area; 17-2. first pushing protrusion; 17-3. first exhaust opening; 18. rotating disk; 18-1. second exhaust opening; 18-2. second pushing protrusion; 18-3. second grinding area; 19. exhaust hole; 20. air collecting chamber shell; 21. exhaust pipe; 22. supporting ring; 23. clamping ring; 24. filter screen; 25. closing plate; 26. fixing bolt. DETAILED DESCRIPTION

[0032] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0033] like Figure 1 The utility model is an airflow-driven grain surface mold particle separation device, which mainly comprises a grinding chamber shell, the grinding chamber shell is a semi-closed structure, a supporting tray is arranged on the closed end of the grinding chamber shell, a discharge port is arranged at a position of the inner wall of the grinding chamber shell corresponding to the supporting tray, a discharge pipe is fixed at the discharge port, a discharge valve is arranged on the discharge pipe, an air collecting chamber shell is coaxially fixed at the rear end of the grinding chamber shell, a closing plate is fixed at the rear end of the air collecting chamber shell, an exhaust pipe is arranged in the middle of the closing plate, an air inlet chamber shell is coaxially fixed to the front end of the grinding chamber shell, a tail end cover is floated at the end of the air inlet chamber shell, wherein the closing plate, the air collecting chamber shell, the grinding chamber shell and the air inlet chamber shell are fixed in an array by a plurality of fixing bolts, and the tail end cover is fixed at the end of the air inlet chamber shell by threads.

[0034] like Figure 1A motor seat is coaxially fixed on the outer side of the tail end cover, a motor is fixed in the motor seat, a feed chamber is coaxially fixed on the inner side of the tail end cover, a spiral feed paddle is coaxially fixed on the rotating shaft of the motor, the feed paddle is located in the feed chamber, a feed pipe is vertically fixed on the side wall of the feed chamber, the grains enter the feed chamber from the feed pipe, and are transported to the grinding chamber shell through the feed paddle.

[0035] like Figure 1 , wherein the air inlet chamber shell is coaxially fixed to the outside of the feed chamber, one end of the air inlet chamber is closed by a tail end cover, an air inlet pipe is fixed on the tail end cover, the air inlet pipe provides airflow to the inside of the air inlet chamber shell, the other end of the air inlet chamber is a closed structure, a plurality of air inlet holes are arranged in an annular array on the closed end of the air inlet chamber, an annular boss is also fixed on the closed end of the air inlet chamber, a fixed disk is fixed in the boss, a disk rack is vertically fixed at the end of the feed paddle, a plurality of third exhaust openings are arranged in an annular array on the disk rack, a plurality of material blocking protrusion strips for sweeping grains to the discharge port position are arranged in an annular array on the outer ring of the disk rack, and a rotating disk is coaxially fixed on the disk rack.

[0036] Among them, Figure 2 The fixed disk is an annular structure, the feed port is located in the middle of the fixed disk, the inner ring array of the fixed disk is arranged with a plurality of first exhaust openings, and an exhaust net with a mesh structure is embedded in the first exhaust opening, the outer ring array of the fixed disk is arranged with a plurality of first grinding areas, the surface of the first grinding area is provided with a mesh grinding protrusion, the first grinding areas are separated by first pushing protrusions, and the first pushing protrusions are arranged obliquely to the radial axis of the fixed disk; wherein, Figure 3 A plurality of second grinding areas are arranged in an inner ring array of the rotating disk, and mesh-shaped grinding protrusions are provided on the surfaces of the second grinding areas. The second grinding areas are separated by second pushing protrusions, and the second pushing protrusions are arranged obliquely to the radial axis of the fixed disk. A plurality of second exhaust openings are arranged in an outer ring array of the rotating disk, and an exhaust net with a mesh structure is embedded in the second exhaust opening; wherein the first pushing protrusion is in sliding contact with the outer ring surface of the rotating disk, and the second pushing protrusion is in sliding contact with the inner ring surface of the fixed disk.

[0037] like Figure 1 A number of exhaust holes are arranged in a circular array on the outer ring of the support tray, and the exhaust holes are used to connect the grinding chamber and the air collecting chamber; a number of limit pins are arranged in a circular array on the support tray, and the ends of the limit pins are rotatably connected to clamping springs, and an electrostatic adsorption disk is fixed on the support tray through the clamping springs.

[0038] like Figure 1 A support ring is integrally fixed to the inner ring of the gas collecting chamber shell, a clamping ring is interference fit on the inner wall of the gas collecting chamber, and a filter screen is clamped and fixed between the clamping ring and the support ring.

[0039] When working in an institution, Figure 1 , the grain particles enter from the feed pipe, and then move along the feed chamber through the feed paddle to the gap between the fixed disk and the rotating disk, the grain particles will first enter the gap between the second grinding area and the first exhaust opening of the rotating disk, and the grain particles will move outward from the middle of the rotating disk driven by the second pushing protrusion, and the grain particles will roll due to the friction of the exhaust net in the first exhaust opening, and will be ground by the mesh grinding protrusions in the second grinding area during the rolling process, and the fallen powder will pass through the airflow entering through the air inlet and move toward the second exhaust opening through the first exhaust opening; then the grain particles will enter the gap between the second exhaust opening and the first grinding area of ​​the rotating disk, and similarly, the grain particles will roll driven by the friction of the exhaust net, and the rolling grain particles will be The grains are ground by the mesh grinding protrusions, and the powders that fall off during the two grindings will enter the tail of the grinding chamber through the second exhaust opening and the third exhaust opening. The grains that have been ground are pushed by the blocking protrusions and discharged through the discharge port. The discharge valve of the discharge port can be opened at a fixed time to prevent the airflow from leaking from the discharge valve. Subsequently, the powders that fall off during the grinding will be separated under the adsorption of the electrostatic adsorption disk at the tail end of the grinding chamber, wherein the toxin particles with smaller particle size will be adsorbed on the surface of the electrostatic adsorption disk, and the remaining grain surface powder with larger particles will enter the gas collecting chamber through the exhaust holes, and will be discharged from the exhaust pipe after being filtered by the filter net in the gas collecting chamber. After a certain period of grinding, the electrostatic adsorption disk can be removed to detect the substance adsorbed on the surface of the electrostatic adsorption disk, so as to detect the content of mycotoxins in a unit amount of grains.

[0040] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. An airflow-driven grain surface mold particle separation device; characterized in that: include: The grinding chamber is a cylindrical structure, a feed port is arranged in the middle of one axial end of the grinding chamber, and a discharge port is arranged on the side wall of the other axial end of the grinding chamber; The airflow driving mechanism includes air inlet holes, which are arranged in an annular array on the inner circle of the end surface of one end of the feed inlet of the grinding chamber, and the airflow driving mechanism also includes exhaust holes, which are arranged in an annular array on the outer circle of the end surface at the rear end position of the grinding chamber, and the rear end position is located at the end facing away from the feed inlet; A rotary drive mechanism, the rotary drive mechanism is fixed to one axial end of the grinding chamber corresponding to the feed inlet position, and the rotary shaft of the rotary drive mechanism extends into the grinding chamber through the feed inlet; The grinding disc group includes a fixed disc and a rotating disc, a grain discharge gap is arranged between the rotating disc and the inner wall of the side of the grinding chamber, wherein the fixed disc is fixed to one end of the grinding chamber corresponding to the feed port position, the fixed disc is an annular structure, the feed port is located in the middle of the fixed disc, a plurality of first exhaust openings are arranged in an inner ring array of the fixed disc, an exhaust net with a mesh structure is inlaid in the first exhaust opening, a plurality of first grinding areas are arranged in an outer ring array of the fixed disc, a mesh-shaped grinding protrusion is arranged on the surface of the first grinding area, the first grinding areas are separated by a first pushing protrusion, and the first pushing protrusion is inclined to the fixed disc. The radial axis of the fixed disk is arranged; wherein the rotating disk is vertically fixed to the end of the rotating shaft of the rotating drive mechanism, the inner ring array of the rotating disk is arranged with a plurality of second grinding areas, the surfaces of the second grinding areas are provided with mesh grinding protrusions, the second grinding areas are separated by second push protrusions, the second push protrusions are arranged inclined to the radial axis of the fixed disk, the outer ring array of the rotating disk is arranged with a plurality of second exhaust openings, and an exhaust net with a mesh structure is embedded in the second exhaust opening; wherein the first push protrusion is in sliding contact with the outer ring surface of the rotating disk, and the second push protrusion is in sliding contact with the inner ring surface of the fixed disk.

2. The airflow driven grain surface mold particle separation device as claimed in claim 1, characterized in that: A disc rack is fixed at the end of the rotating shaft, the rotating disc is fixed to the disc rack, and a plurality of third exhaust openings are arranged in an annular array on the outer ring of the disc rack.

3. The airflow-driven grain surface mold particle separation device according to claim 2, characterized in that: A plurality of material-blocking protrusion strips are arranged in an annular array on the outer ring of the disk rack.

4. The airflow-driven grain surface mold particle separation device according to claim 1, characterized in that: An electrostatic adsorption disk is fixed on one end of the grinding chamber corresponding to the location of the exhaust hole.

5. The airflow driven grain surface mold particle separation device as claimed in claim 4, characterized in that: A plurality of limit pins are fixed in an annular array on the axial end of the grinding chamber, and a clamping spring is rotatably connected to the end of the limit pin, and the clamping spring is pressed tightly to the outer ring of the electrostatic adsorption disk.

6. The airflow-driven grain surface mold particle separation device according to claim 1, characterized in that: The rear end of the grinding chamber is also connected to a gas collecting chamber, the rear end of the gas collecting chamber is connected to an exhaust pipe, and a filter screen is fixed in the middle of the gas collecting chamber.

7. The airflow-driven grain surface mold particle separation device according to claim 6, characterized in that: A supporting ring is integrally fixed to the inner ring of the gas collecting cavity, a clamping ring is interference fit on the inner wall of the gas collecting cavity, and the outer ring of the filter screen is fixed between the clamping ring and the supporting ring.

8. The airflow driven grain surface mold particle separation device as claimed in claim 1, characterized in that: A feed chamber is connected to the front end of the grinding chamber at a position corresponding to the feed port, the feed chamber is fixedly connected to the feed port, a rotary drive mechanism is fixed to the front end of the feed chamber, a spiral feed paddle is fixed to the end of the rotating shaft, a rotating disk is fixed to the end of the feed paddle, and a feed pipe is vertically fixed to the side wall of the feed chamber.

9. The airflow driven grain surface mold particle separation device as claimed in claim 1, characterized in that: An air inlet chamber is connected to the front end of the grinding chamber corresponding to the position of the feed port. The air inlet chamber is arranged on the periphery of the feed chamber. The feed pipe runs through the wall of the air inlet chamber. An air inlet pipe is fixed to the front end of the air inlet chamber, and the rear end of the air inlet chamber is connected to each air inlet hole.

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