A pulverizing device for grain particles and a working method thereof

Abstract

The present invention relates to the technical field of grain particle crushing, and specifically to a grain particle crushing device and a working method thereof, comprising a first crushing box and a second crushing box fixedly installed on one side of the top of the first crushing box, an outer shell for soaking corn kernels is arranged above one side of the second crushing box, a drying mechanism for removing excess moisture on the surface of the corn kernels is arranged inside the outer shell, a conveying mechanism for distinguishing between discharged moisture and corn kernels is arranged below the outer shell, and a feed hopper is fixedly connected to the top of the outer shell; the hot air flow provides a downward thrust to the filter plate at the moment of being ejected from the air jet pipe, and the tension of the tension spring is combined to make the filter plate reciprocate and collide with the partition to shake off the moisture on the surface of the corn kernels, and the hot air flow and the electric heating rod are combined to quickly dry the outer shell of the corn kernels to avoid the adhesion phenomenon that is easy to form during the crushing process, reduce the resistance during crushing, and ensure the crushing efficiency of the corn kernels.

Description

Technical Field

[0001] The invention relates to the technical field of grain particle crushing, in particular to a grain particle crushing device and a working method thereof. Background Art

[0002] Grain crushing is the process of breaking grains (such as wheat, corn, rice, barley, oats, etc.) from their original form (whole grains) into smaller particles or powders by mechanical or physical means; this process is widely used in many fields such as food industry, feed production, brewing industry and pharmaceutical industry. Before crushing corn kernels, the corn kernels need to be soaked for a period of time. The soaking process can soften the corn kernels and make them easier to crush;

[0003] After soaking, the existing corn kernels are directly injected into the crushing device through the conveying pipe for crushing. Due to the residual moisture on the outer skin of the corn kernels, adhesion is easily formed during the crushing process, which increases the resistance during crushing and reduces the efficiency of corn kernel crushing. At the same time, during the long-term transportation of corn kernels through the conveying pipe, the corn kernels will collide with the inner wall of the conveying pipe, and a small amount of moisture splashed from the crushed corn kernels will adhere to the inner wall of the conveying pipe, making it easy for subsequent corn kernels to accumulate in the conveying pipe, affecting the normal transportation of the corn kernels. Summary of the invention

[0004] The technical problems solved by this solution are:

[0005] How to solve the problem that due to the residual moisture on the outer skin of corn kernels, it is easy to form adhesion during the crushing process, which increases the resistance during crushing and reduces the efficiency of corn kernel crushing;

[0006] How to solve the problem that corn kernels collide with the inner wall of the conveying pipe, causing a small amount of moisture to adhere to the inner wall of the conveying pipe, making it easy for subsequent corn kernels to accumulate in the conveying pipe, affecting normal transportation.

[0007] The object of the present invention can be achieved by the following technical scheme: A pulverizing device for grains, comprising a first pulverizing box and a second pulverizing box fixedly installed on one side of the top thereof, wherein the first pulverizing box and the second pulverizing box are both prior art, a shell for soaking corn kernels is arranged above one side of the second pulverizing box, a drying mechanism for removing excess water on the surface of the corn kernels is arranged inside the shell, a conveying mechanism for distinguishing and discharging water and corn kernels is arranged below the shell, and a feed hopper is fixedly connected to the top of the shell;

[0008] The drying mechanism includes a partition fixedly installed on the top of the inner wall of the shell, the partition is arranged longitudinally, and a rotating opening is opened in the middle of the partition, an L-shaped transmission rod is rotatably arranged in the rotating opening through a pin shaft, and a longitudinally arranged cylinder is fixedly installed on the side of the rotating opening through a positioning frame, the protruding end of the cylinder is fixedly connected to a first shifting rod, and the first shifting rod is slidably connected to the L-shaped transmission rod, and a closing unit for blocking a feed hopper is arranged on the side of the rotating opening away from the cylinder.

[0009] A further technical improvement of the present invention is that a filter plate is rotatably arranged on the inner wall of the outer shell, the top surface of the filter plate contacts the bottom of the partition plate, the filter plate is arranged at an angle, and the top end of the filter plate is fixedly connected with a connecting rod, and the top end of the connecting rod is fixedly connected to the positioning frame through a tension spring; by setting the connecting rod, the tension spring is prevented from contacting the clean water in the outer shell, thereby providing protection for the tension spring.

[0010] A further technical improvement of the present invention is that a hot air blower is fixedly arranged on the outer wall of the shell, the output end of the hot air blower is connected to an air jet pipe, and the output end of the air jet pipe is in contact with the top end of the filter plate.

[0011] A further technical improvement of the present invention is that a water inlet pipe is arranged below the hot air blower, the output end of the water inlet pipe is fixedly inserted on the outer shell, and a water inlet valve is fixedly installed in the middle of the water inlet pipe, the input end of the water inlet pipe is connected to an external water supply device, and an electric heating rod is fixedly installed on the bottom of the inner wall of the outer shell, and the electric heating rod is located below the filter plate.

[0012] A further technical improvement of the present invention is that the closed unit includes two guide frames fixedly connected to the inner wall of the outer shell, and a lifting rod is movably inserted on the two guide frames. A transmission roller is rotatably provided on the top of the lifting rod, and the bottom of the lifting rod is movably connected to one end of the L-shaped transmission rod through a second lever.

[0013] A further technical improvement of the present invention is that: a rotating seat is fixedly installed on the outer shell on one side of the feed hopper, and a flip plate for blocking the output end of the feed hopper is rotatably arranged at the bottom of the rotating seat, and the bottom of the flip plate is rollingly connected to the transmission roller; after the corn kernels are softened, the drain valve is opened to allow the warm water in the outer shell to flow into the drain pipe along the guide pipe and then be discharged through the drain pipe. After the water in the outer shell is discharged, the temperature in the outer shell is first increased by the electric heating rod, and then the hot air blower is turned on to allow the hot air flow to be injected into the outer shell along the jet pipe. The hot air flow provides a downward thrust to the filter plate at the moment it is ejected from the jet pipe, and then cooperates with the tension of the tension spring to make the filter plate reciprocate. During the process of the filter plate rotating and resetting, it will collide with the partition to shake off the water on the surface of the corn kernels, and then cooperate with the hot air flow and the electric heating rod to quickly dry the outer skin of the corn kernels to avoid the easy formation of adhesion during the crushing process, reduce the resistance during crushing, and ensure the crushing efficiency of the corn kernels.

[0014] A further technical improvement of the present invention is that the conveying mechanism includes a guide pipe connected to the bottom of the outer shell, one side of the guide pipe is connected to a drain pipe, a drain valve is fixedly installed at the end of the drain pipe close to the guide pipe, the other side of the guide pipe is connected to an inclined discharge pipe, the bottom end of the discharge pipe is connected to the top of the second crushing box, and the input end of the discharge pipe is located below the input end of the drain pipe.

[0015] A further technical improvement of the present invention is that an electric push rod is fixedly installed on the top of the first crushing box, and a piston is fixedly installed on the protruding end of the electric push rod, and the piston is slidably arranged in the middle of the inner wall of the guide pipe; after the moisture on the surface of the corn kernels is dried, the drain valve is closed, and the protruding end of the cylinder is controlled to extend from the shortest to half the length, and there is a gap between the protruding end of the cylinder and the filter plate. At this time, the first lever slides from the middle of the L-shaped transmission rod to one section thereof, driving the L-shaped transmission rod to rotate, so that the lifting rod and the transmission roller rise, and the turning plate is turned over by the transmission roller to block the bottom of the feed hopper, and then the protruding end of the electric push rod is controlled to shrink to the shortest, so that the top surface of the piston corresponds to the input end of the discharge pipe, and the hot air flow entering the shell passes through the guide pipe and the discharge pipe into the second crushing box and the first crushing box, and then is discharged through the exhaust hole. When the hot air flow passes through the guide pipe and the discharge pipe, it is convenient to dry the moisture therein, so as to prevent the subsequent corn kernels from being easily accumulated in the guide pipe and the discharge pipe, thereby ensuring the normal transportation of the corn kernels.

[0016] A working method of a pulverizing device for grain particles, the working method specifically comprising the following steps:

[0017] Step 1: Put the dried corn kernels into the shell through the feed hopper, and the corn kernels fall onto the filter plate along the flip plate and the partition. At this time, the extended end of the electric push rod is at its longest, the top surface of the piston is at the same height as the bottom of the inner wall of the drain pipe, and the drain valve is in a closed state; then open the water inlet valve and the electric heating rod, inject a specified amount of clean water into the shell, and close the water inlet valve in time. At this time, the liquid level of the clean water is higher than the filter plate, and the clean water in the shell is heated to the set temperature by the electric heating rod to obtain warm water, which quickly softens the corn kernels and makes them easier to break;

[0018] Step 2: After the corn kernels are softened, the drain valve is opened to allow the warm water in the shell to flow into the drain pipe along the guide pipe and then be discharged through the drain pipe. After the water in the shell is discharged, the temperature in the shell is first increased by the electric heating rod, and then the hot air blower is turned on to allow the hot air flow to be injected into the shell along the jet pipe. The hot air flow provides a downward thrust to the filter plate at the moment it is ejected from the jet pipe, and then the tension of the tension spring is used to make the filter plate reciprocate. During the process of the filter plate rotating and resetting, it will collide with the partition plate to shake off the water on the surface of the corn kernels. Then, the hot air flow and the electric heating rod are used to quickly dry the outer skin of the corn kernels to avoid the adhesion phenomenon that is easy to form during the crushing process, reduce the resistance during crushing, and ensure the crushing efficiency of the corn kernels.

[0019] Step 3: After the moisture on the surface of the corn kernels is dried, the drain valve is closed, and the extended end of the cylinder is controlled to extend from the shortest to half the length. There is a gap between the extended end of the cylinder and the filter plate. At this time, the first lever is used to slide from the middle of the L-shaped transmission rod to one section thereof, driving the L-shaped transmission rod to rotate, so that the lifting rod and the transmission roller rise, and the transmission roller drives the flip plate to flip, blocking the bottom of the feed hopper, and then the extended end of the electric push rod is controlled to shrink to the shortest, so that the top surface of the piston corresponds to the input end of the discharge pipe, and the hot air flow entering the shell passes through the guide pipe and the discharge pipe into the second crushing box and the first crushing box, and then discharged through the exhaust hole. When the hot air flow passes through the guide pipe and the discharge pipe, it is convenient to dry the moisture therein, so as to prevent the subsequent corn kernels from being easily accumulated in the guide pipe and the discharge pipe, thereby ensuring the normal transportation of the corn kernels;

[0020] Step 4: After the moisture in the guide pipe and the discharge pipe is dried, control the extended end of the cylinder to extend to the longest, and the extended end of the cylinder pushes the filter plate to flip, so that the corn kernels fall along the filter plate to the bottom of the shell, and then enter the second crushing box and the first crushing box along the guide pipe and the discharge pipe. The corn kernels are crushed by the second crushing box and the first crushing box, and the discharge valve is opened to allow the corn powder obtained after crushing to be output through the discharge pipe.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] When the present invention is in use, after the moisture in the shell is discharged, the temperature in the shell is first increased by the electric heating rod, and then the hot air blower is turned on to inject the hot air flow into the shell along the air jet pipe. The hot air flow provides a downward thrust to the filter plate at the moment of being ejected from the air jet pipe, and then cooperates with the tension of the tension spring to make the filter plate reciprocate. In the process of the filter plate rotating and resetting, it will collide with the partition plate to shake off the moisture on the surface of the corn kernels, and then cooperate with the hot air flow and the electric heating rod to quickly dry the outer skin of the corn kernels, avoid the easy formation of adhesion in the crushing process, reduce the resistance during crushing, and ensure the crushing efficiency of the corn kernels.

[0023] When the present invention is in use, after the moisture on the surface of the corn kernels is dried, the drain valve is closed, and the extended end of the cylinder is controlled to extend from the shortest to half the length, and a gap is formed between the extended end of the cylinder and the filter plate. At this time, the first lever slides from the middle of the L-shaped transmission rod to one section thereof, driving the L-shaped transmission rod to rotate, so that the lifting rod and the transmission roller rise, and the flip plate is driven to flip through the transmission roller to block the bottom of the feed hopper, and then the extended end of the electric push rod is controlled to shrink to the shortest, so that the top surface of the piston corresponds to the input end of the discharge pipe, and the hot air flow entering the shell passes through the guide pipe and the discharge pipe into the second crushing box and the first crushing box, and then is discharged through the exhaust hole. When the hot air flow passes through the guide pipe and the discharge pipe, it is convenient to dry the moisture therein, so as to prevent the subsequent corn kernels from being easily accumulated in the guide pipe and the discharge pipe, thereby ensuring the normal transportation of the corn kernels. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0025] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the internal structure of the housing of the present invention;

[0027] Figure 3 The drying mechanism structure of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 4 For the present invention Figure 3 A magnified view of the structure at center;

[0029] Figure 5 The drying mechanism structure of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 6 It is a three-dimensional schematic diagram of the closed unit structure of the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the transmission mechanism of the present invention.

[0032] In the figure: 1, feed hopper; 2, shell; 3, second crushing box; 4, first crushing box; 5, discharge pipe; 6, exhaust hole; 7, conveying mechanism; 8, electric heating rod; 9, drying mechanism; 10, hot air blower; 11, water inlet pipe; 12, positioning frame; 13, jet pipe; 71, guide pipe; 72, piston; 73, discharge pipe; 74, electric push rod; 75, drain valve; 76, drain pipe; 91, partition; 92, filter plate; 93, closing unit; 94, cylinder; 95, first lever; 96, tension spring; 97, connecting rod; 98, L-shaped transmission rod; 99, rotating mouth; 931, rotating seat; 932, flip plate; 933, guide frame; 934, second lever; 935, lifting rod; 936, transmission roller. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 7 As shown, a crushing device for grain particles includes a first crushing box 4 and a second crushing box 3 fixedly installed on one side of the top thereof, wherein the first crushing box 4 and the second crushing box 3 are both prior arts, and an outer shell 2 for soaking corn kernels is arranged above one side of the second crushing box 3, and a drying mechanism 9 for removing excess moisture on the surface of the corn kernels is arranged inside the outer shell 2, and a conveying mechanism 7 for distinguishing and discharging moisture and corn kernels is arranged below the outer shell 2, and a feed hopper 1 is fixedly connected to the top of the outer shell 2.

[0035] See also Figure 1-Figure 7 As shown, the above-mentioned drying mechanism 9 includes a partition 91 fixedly installed on the top of the inner wall of the outer shell 2, the partition 91 is longitudinally arranged, and a rotating opening 99 is opened in the middle of the partition 91, an L-shaped transmission rod 98 is rotatably arranged in the rotating opening 99 through a pin shaft, and a longitudinally arranged cylinder 94 is fixedly installed on the side of the rotating opening 99 through a positioning frame 12, the protruding end of the cylinder 94 is fixedly connected with a first shifting rod 95, and the first shifting rod 95 is slidably connected with the L-shaped transmission rod 98, and a closing unit 93 for blocking the feed hopper 1 is arranged on the side of the rotating opening 99 away from the cylinder 94.

[0036] See also Figure 1-Figure 7As shown, a filter plate 92 is rotatably provided on the inner wall of the above-mentioned shell 2, the top surface of the filter plate 92 contacts the bottom of the partition 91, the filter plate 92 is inclined, and the top end of the filter plate 92 is fixedly connected with a connecting rod 97, and the top end of the connecting rod 97 is fixedly connected to the positioning frame 12 through a tension spring 96; by providing the connecting rod 97, the tension spring 96 is prevented from contacting the clean water in the shell 2, thereby providing protection for the tension spring 96.

[0037] See also Figure 2 and Figure 4 As shown, a hot air blower 10 is fixedly arranged on the outer wall of the above-mentioned shell 2, and the output end of the hot air blower 10 is connected to an air jet pipe 13, and the output end of the air jet pipe 13 contacts the top end of the filter plate 92.

[0038] See also Figure 2 and Figure 5 As shown, a water inlet pipe 11 is arranged below the above-mentioned hot air blower 10, the output end of the water inlet pipe 11 is fixedly inserted on the outer shell 2, and a water inlet valve is fixedly installed in the middle of the water inlet pipe 11, the input end of the water inlet pipe 11 is connected to an external water supply device, and an electric heating rod 8 is fixedly installed at the bottom of the inner wall of the outer shell 2, and the electric heating rod 8 is located below the filter plate 92.

[0039] See also Figure 1-Figure 7 As shown, the above-mentioned closed unit 93 includes two guide frames 933 fixedly connected to the inner wall of the outer shell 2, and a lifting rod 935 is movably inserted on the two guide frames 933. A transmission roller 936 is rotatably provided on the top of the lifting rod 935, and the bottom of the lifting rod 935 is movably connected to one end of the L-shaped transmission rod 98 through a second shift rod 934.

[0040] See also Figure 3 , Figure 5 and Figure 6As shown, a rotating seat 931 is fixedly installed on the shell 2 on one side of the feed hopper 1, and a flip plate 932 for blocking the output end of the feed hopper 1 is rotatably provided at the bottom of the rotating seat 931, and the bottom of the flip plate 932 is rollingly connected with the driving roller 936; after the corn kernels are softened, the drain valve 75 is opened, so that the warm water in the shell 2 flows into the drain pipe 76 along the guide pipe 71, and then is discharged through the drain pipe 76. After the water in the shell 2 is discharged, the temperature in the shell 2 is first increased by the electric heating rod 8, and then the hot air blower 10 is turned on. , so that the hot air flow is injected into the shell 2 along the air jet pipe 13. The hot air flow provides a downward thrust to the filter plate 92 at the moment of being ejected from the air jet pipe 13, and the tension of the tension spring 96 is combined to make the filter plate 92 reciprocate. In the process of rotating and resetting the filter plate 92, it will collide with the partition 91, and the moisture on the surface of the corn kernels will be shaken off. The hot air flow and the electric heating rod 8 are combined to quickly dry the outer skin of the corn kernels, avoid the easy formation of adhesion during the crushing process, reduce the resistance during crushing, and ensure the crushing efficiency of the corn kernels.

[0041] See also Figure 1-Figure 7 As shown, the above-mentioned conveying mechanism 7 includes a guide pipe 71 connected to the bottom of the shell 2, one side of the guide pipe 71 is connected to a drain pipe 76, and a drain valve 75 is fixedly installed at the end of the drain pipe 76 near the guide pipe 71, and the other side of the guide pipe 71 is connected to an inclined discharge pipe 73, the bottom end of the discharge pipe 73 is connected to the top of the second crushing box 3, and the input end of the discharge pipe 73 is located below the input end of the drain pipe 76.

[0042] See also Figure 1 and Figure 7 As shown, an electric push rod 74 is fixedly installed on the top of the first crushing box 4, and a piston 72 is fixedly installed on the extended end of the electric push rod 74. The piston 72 is slidably arranged in the middle of the inner wall of the guide tube 71; after the moisture on the surface of the corn kernels is dried, the drain valve 75 is closed, and the extended end of the cylinder 94 is controlled to extend from the shortest to half the length, and there is a gap between the extended end of the cylinder 94 and the filter plate 92. At this time, the first lever 95 slides from the middle of the L-shaped transmission rod 98 to one section thereof, driving the L-shaped transmission rod 98 to rotate, so that the lifting rod 935 and the transmission roller 936 The rotating plate 932 is driven to turn over by the transmission roller 936 to block the bottom of the feed hopper 1, and then the extended end of the electric push rod 74 is controlled to shrink to the shortest, so that the top surface of the piston 72 corresponds to the input end of the discharge pipe 73, and the hot air flow entering the outer shell 2 passes through the guide pipe 71 and the discharge pipe 73 to enter the second crushing box 3 and the first crushing box 4, and then is discharged through the exhaust hole 6. When the hot air flow passes through the guide pipe 71 and the discharge pipe 73, it is convenient to dry the moisture therein, so as to prevent the subsequent corn kernels from being easily accumulated in the guide pipe 71 and the discharge pipe 73, thereby ensuring the normal transportation of the corn kernels.

[0043] See also Figure 1 As shown, an exhaust hole 6 is opened on the top of the side of the first crushing box 4 , and the exhaust hole 6 is arranged away from the second crushing box 3 .

[0044] See also Figure 1 As shown, the bottom of the first crushing box 4 is fixedly connected with a discharge pipe 5, and a discharge valve is fixedly installed in the middle of the discharge pipe 5.

[0045] A working method of a pulverizing device for grain particles, the working method specifically comprising the following steps:

[0046] Step 1: If Figure 1 , Figure 3 and Figure 6 As shown, the dried corn kernels are put into the shell 2 through the feed hopper 1, and the corn kernels fall onto the filter plate 92 along the flip plate 932 and the partition 91. At this time, the extended end of the electric push rod 74 is at its longest, the top surface of the piston 72 is at the same height as the bottom of the inner wall of the drain pipe 76, and the drain valve 75 is in a closed state; Figure 1-Figure 3 As shown, the water inlet valve and the electric heating rod 8 are opened, and a specified amount of clean water is injected into the shell 2, and then the water inlet valve is closed in time. At this time, the liquid level of the clean water is higher than the filter plate 92, and the clean water in the shell 2 is heated to a set temperature by the electric heating rod 8 to obtain warm water, which quickly softens the corn kernels and makes them easier to break;

[0047] Step 2: If Figure 1 , Figure 2 and Figure 7 As shown, after the corn kernels are softened, the drain valve 75 is opened to allow the warm water in the shell 2 to flow into the drain pipe 76 along the guide pipe 71 and then be discharged through the drain pipe 76. After the water in the shell 2 is discharged, the temperature in the shell 2 is first increased by the electric heating rod 8, and then the hot air blower 10 is turned on to allow the hot air flow to be injected into the shell 2 along the air injection pipe 13, as shown in FIG. Figure 3 , Figure 4 and Figure 5 As shown, the moment the hot air flow is ejected from the air jet pipe 13, it provides a downward thrust to the filter plate 92, and in combination with the tension of the tension spring 96, the filter plate 92 reciprocates. During the process of the filter plate 92 rotating and resetting, it collides with the partition plate 91, and the moisture on the surface of the corn kernels is shaken off. In combination with the hot air flow and the electric heating rod 8, the outer skin of the corn kernels is quickly dried, and adhesion is avoided during the crushing process, thereby reducing the resistance during crushing and ensuring the crushing efficiency of the corn kernels.

[0048] Step 3: If Figure 3-Figure 7As shown, after the moisture on the surface of the corn kernels is dried, the drain valve 75 is closed, and the extended end of the cylinder 94 is controlled to extend from the shortest to half the length. There is a gap between the extended end of the cylinder 94 and the filter plate 92. At this time, the first lever 95 slides from the middle of the L-shaped transmission rod 98 to one section thereof, driving the L-shaped transmission rod 98 to rotate, so that the lifting rod 935 and the transmission roller 936 rise, and the transmission roller 936 drives the flip plate 932 to flip, blocking the bottom of the feed hopper 1, and then the extended end of the electric push rod 74 is controlled to shrink to the shortest, so that the top surface of the piston 72 corresponds to the input end of the discharge pipe 73, as shown in FIG. Figure 1 and Figure 7 As shown, the hot air flow entering the housing 2 passes through the guide pipe 71 and the discharge pipe 73 to enter the second crushing box 3 and the first crushing box 4, and then is discharged through the exhaust hole 6. When the hot air flow passes through the guide pipe 71 and the discharge pipe 73, it is convenient to dry the moisture therein, so as to prevent the subsequent corn kernels from being easily accumulated in the guide pipe 71 and the discharge pipe 73, thereby ensuring the normal transportation of the corn kernels.

[0049] Step 4: If Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, after the moisture in the guide pipe 71 and the discharge pipe 73 is dried, the extended end of the cylinder 94 is controlled to extend to the longest, and the extended end of the cylinder 94 pushes the filter plate 92 to flip, so that the corn kernels fall along the filter plate 92 to the bottom of the outer shell 2, and then enter the second crushing box 3 and the first crushing box 4 along the guide pipe 71 and the discharge pipe 73. The corn kernels are crushed by the second crushing box 3 and the first crushing box 4, and the discharge valve is opened to allow the corn powder obtained after crushing to be output through the discharge pipe 5.

[0050] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A device for crushing grains, comprising a first crushing box (4) and a second crushing box (3) fixedly mounted on one side of the top of the first crushing box, wherein a shell (2) for soaking corn grains is arranged above one side of the second crushing box (3), characterized in that: A drying mechanism (9) for removing excess moisture from the surface of corn kernels is disposed inside the shell (2), a conveying mechanism (7) for distinguishing and discharging moisture and corn kernels is disposed below the shell (2), and a feed hopper (1) is fixedly connected to the top of the shell (2); The drying mechanism (9) comprises a partition (91) fixedly mounted on the top of the inner wall of the housing (2); a rotating opening (99) is provided in the middle of the partition (91); an L-shaped transmission rod (98) is rotatably arranged in the rotating opening (99); a cylinder (94) is fixedly mounted on the side of the rotating opening (99) via a positioning frame (12); a first shifting rod (95) is fixedly connected to the protruding end of the cylinder (94); the first shifting rod (95) is slidably connected to the L-shaped transmission rod (98); and a portion of the rotating opening (99) away from the cylinder (94) is provided with a first shifting rod (95). A sealing unit (93) for blocking the feed hopper (1) is arranged on the side of the housing (2); a filter plate (92) is rotatably arranged on the inner side wall of the housing (2); the filter plate (92) is arranged obliquely, and the top end of the filter plate (92) is fixedly connected to a connecting rod (97); the top end of the connecting rod (97) is fixedly connected to the positioning frame (12) via a tension spring (96); a hot air blower (10) is fixedly arranged on the outer wall of the housing (2); the output end of the hot air blower (10) is connected to an air jet pipe (13); the output end of the air jet pipe (13) is connected to the output end of the air jet pipe (13). The end of the hot air blower (10) contacts the top end of the filter plate (92); a water inlet pipe (11) is arranged below the hot air blower (10); the output end of the water inlet pipe (11) is fixedly inserted into the housing (2); and a water inlet valve is fixedly installed in the middle of the water inlet pipe (11); an electric heating rod (8) is fixedly installed at the bottom of the inner wall of the housing (2); the electric heating rod (8) is located below the filter plate (92); and the closed unit (93) comprises two guide frames (933) fixedly connected to the inner wall of the housing (2); the two guide frames (933) are movable together. The movable plug is provided with a lifting rod (935), the top of which is rotatably provided with a transmission roller (936), and the bottom of the lifting rod (935) is movably connected to one end of an L-shaped transmission rod (98) via a second lever (934), a rotating seat (931) is fixedly mounted on the outer shell (2) on one side of the feed hopper (1), and a flip plate (932) for blocking the output end of the feed hopper (1) is rotatably provided at the bottom of the rotating seat (931), and the bottom of the flip plate (932) is rollingly connected to the transmission roller (936); The conveying mechanism (7) comprises a guide pipe (71) connected to the bottom of the housing (2); one side of the guide pipe (71) is connected to a drain pipe (76); a drain valve (75) is fixedly installed at the end of the drain pipe (76) close to the guide pipe (71); the other side of the guide pipe (71) is connected to an inclined discharge pipe (73); the bottom end of the discharge pipe (73) is connected to the top of the second crushing box (3); the input end of the discharge pipe (73) is located below the input end of the drain pipe (76); an electric push rod (74) is also fixedly installed on the top of the first crushing box (4); a piston (72) is fixedly installed on the protruding end of the electric push rod (74); the piston (72) is slidably arranged in the middle of the inner wall of the guide pipe (71); The working method of the grain crushing device specifically comprises the following steps: Step 1: The dried corn kernels are put into the outer shell (2) through the feed hopper (1). At this time, the extended end of the electric push rod (74) is at its longest position, the top surface of the piston (72) is at the same height as the bottom of the inner wall of the drain pipe (76), and the drain valve (75) is in a closed state; then the water inlet valve and the electric heating rod (8) are opened, and clean water is injected into the outer shell (2). The water inlet valve is closed in time. At this time, the liquid level of the clean water is higher than the filter plate (92), and the clean water in the outer shell (2) is heated to a set temperature by the electric heating rod (8) to obtain warm water, and the corn kernels are quickly softened by the warm water; Step 2: After the corn kernels are softened, the drain valve (75) is opened to allow the warm water in the shell (2) to flow into the drain pipe (76) along the guide pipe (71) and then be discharged through the drain pipe (76). After the water in the shell (2) is discharged, the temperature in the shell (2) is first increased by the electric heating rod (8), and then the hot air blower (10) is turned on to allow the hot air flow to be injected into the shell (2) along the air injection pipe (13). The hot air flow provides a downward thrust to the filter plate (92) at the moment of being ejected from the air injection pipe (13), and then cooperates with the tension of the tension spring (96) to cause the filter plate (92) to reciprocate. In the process of the filter plate (92) rotating and resetting, it collides with the partition plate (91), so that the water on the surface of the corn kernels is shaken off, and then cooperates with the hot air flow and the electric heating rod (8) to quickly dry the outer skin of the corn kernels; Step 3: After the moisture on the surface of the corn kernels is dried, the drain valve (75) is closed, and the extended end of the cylinder (94) is controlled to extend from the shortest length to half the length. A gap exists between the extended end of the cylinder (94) and the filter plate (92). At this time, the first lever (95) is slid from the middle of the L-shaped transmission rod (98) to one section thereof, driving the L-shaped transmission rod (98) to rotate, so that the lifting rod (935) and the transmission roller (936) are raised, and the turning plate (932) is turned over by the transmission roller (936), blocking the bottom of the feed hopper (1). Then, the extended end of the electric push rod (74) is controlled to shrink to the shortest length, so that the top surface of the piston (72) corresponds to the input end of the discharge pipe (73), and the hot air flow entering the housing (2) passes through the guide pipe (71) and the discharge pipe (73) into the second crushing box (3) and the first crushing box (4), and then is discharged through the exhaust hole (6); Step 4: After the moisture in the guide tube (71) and the discharge tube (73) is dried, the extended end of the cylinder (94) is controlled to extend to its longest position, and the extended end of the cylinder (94) pushes the filter plate (92) to flip, so that the corn kernels fall along the filter plate (92) to the bottom of the shell (2), and then enter the second crushing box (3) and the first crushing box (4) along the guide tube (71) and the discharge tube (73), and the corn kernels are crushed by the second crushing box (3) and the first crushing box (4).

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