Equipment for removing arsenic from rice by utilizing adsorption method and arsenic removal method thereof

Abstract

The invention relates to the technical field of arsenic removal of rice, in particular to equipment for removing arsenic from rice through an adsorption method and an arsenic removal method thereof.The equipment comprises a base, and a fixing plate and a baffle are fixedly installed on the base; the filter is arranged on the base, a reciprocating mechanism connected with the filter is arranged on the fixing plate, and the reciprocating mechanism can act when rice is placed in the filter; the intermittent discharging mechanism is arranged on the baffle and connected with the filter, the intermittent discharging mechanism can act when the filter moves, and after the rice in the filter is adsorbed, the rice is intermittently discharged out of the filter; the guiding mechanism is arranged on the baffle and connected with the intermittent discharging mechanism and the filter, and the guiding mechanism can act when the intermittent discharging mechanism moves and adjust the movement state of the intermittent discharging mechanism; the limiting assembly is arranged on the baffle and connected with the guiding mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of rice arsenic removal, in particular to a device for removing arsenic from rice by adsorption method and an arsenic removal method thereof. Background Art

[0002] Rice is one of the important food crops, and rice syrup is an important by-product. However, due to air pollution and pesticides used in agricultural production, the arsenic content in rice is relatively high, and syrup as a by-product of rice is also contaminated by arsenic.

[0003] Arsenic is a toxic substance. Long-term excessive intake will cause harm to human health. It is necessary to carry out arsenic removal research on rice syrup to improve its safety and quality and protect the health of consumers. Arsenic removal from rice is generally done by absorbing arsenic through adsorbents.

[0004] When existing adsorbents absorb arsenic, rice is generally placed in the adsorbent and taken out after the rice adsorption time reaches the required value. However, since rice may accumulate in the adsorbent, part of the rice cannot contact the adsorbent, resulting in incomplete adsorption of arsenic in the rice. Summary of the invention

[0005] The object of the present invention is to provide a device for removing arsenic from rice by adsorption and a method for removing arsenic from rice, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A device for removing arsenic from rice by adsorption method, comprising: A base, on which a fixing plate and a baffle plate are fixedly mounted in a symmetrical arrangement; A filter is arranged on the base, and a reciprocating mechanism connected to the filter is arranged on the fixed plate, and the reciprocating mechanism can be activated when rice is placed in the filter, and drives the filter to reciprocate in the horizontal direction; It is characterized by further comprising: an intermittent discharging mechanism, which is disposed on the baffle and connected to the filter, and can be operated when the filter moves, and after the rice in the filter is adsorbed, the intermittent discharging mechanism can intermittently discharge the rice to the outside of the filter; A guiding mechanism, which is arranged on the baffle and connected to the intermittent discharging mechanism and the filter, and the guiding mechanism can be activated when the intermittent discharging mechanism moves, and adjust the movement state of the intermittent discharging mechanism; A limit assembly is arranged on the baffle and connected to the guide mechanism. The limit assembly can be activated when the guide mechanism moves, and drives the intermittent discharging mechanism to move through the guide mechanism.

[0007] As a further solution of the present invention: the reciprocating mechanism includes a motor fixedly mounted on one of the fixed plates, a transmission rod connected to the motor output shaft and arranged hollow and rotatably mounted on the fixed plate, a support rod fixedly connected to the filter being movably mounted in the transmission rod, a clamping assembly connected to the transmission rod and the support rod being arranged on the fixed plate, and the clamping assembly being connected to the filter.

[0008] As a further solution of the present invention: the locking assembly includes a No. 1 guide groove and a No. 2 guide groove opened on the support rod, a limit block engaged with the No. 1 guide groove and the No. 2 guide groove is fixed on the inner wall of the support rod, a guide structure connected to the filter is provided on the fixed plate, and the No. 1 guide groove and the No. 2 guide groove are connected to each other.

[0009] As a further solution of the present invention: the guide structure includes a fixed sleeve fixedly installed on the other fixed plate, a fixed rod fixedly connected to the filter is movably installed in the fixed sleeve, a limiting rod is fixed on the fixed rod, and a limiting groove engaged with the limiting rod is opened on the inner wall of the fixed sleeve.

[0010] As a further solution of the present invention: the intermittent discharging mechanism includes a supporting sleeve fixedly mounted on the baffle and symmetrically arranged, a movable rod movably installed in the supporting sleeve, springs are sleeved on the supporting sleeve and the movable rod, and a toothing assembly connected to the movable rod and the spring is arranged on the baffle, and the toothing assembly is connected to the filter and the guide mechanism.

[0011] As a further solution of the present invention: the engaging assembly includes a rack plate fixedly mounted on the end of the movable rod away from the baffle, a support ring is fixed at the bottom of the filter, a turntable is slidably mounted on the support ring, a discharge trough matching the filter is provided on the turntable, a gear ring meshing with the rack plate is fixed on the support ring, and the rack plate is connected to the guide mechanism and abuts against the spring.

[0012] As a further solution of the present invention: the guiding mechanism includes a supporting plate fixedly mounted on the rack plate, a No. 1 straight groove is provided on the supporting plate, a No. 1 oblique groove connected to the No. 1 straight groove is also provided on the supporting plate, a yielding assembly connected to the No. 1 straight groove and the No. 1 oblique groove is provided on the baffle plate, the yielding assembly is connected to the filter, and the supporting plate is connected to the limiting assembly.

[0013] As a further solution of the present invention: the yielding component includes a No. 2 straight groove opened on the support plate and connected with the No. 1 inclined groove, and a No. 2 inclined groove connected with the No. 2 straight groove and the No. 1 straight groove is also opened on the support plate, and a receiving rod cooperating with the No. 1 straight groove, the No. 1 inclined groove, the No. 2 straight groove and the No. 2 inclined groove is fixed to the side wall of the filter.

[0014] As a further solution of the present invention: the limiting assembly includes a guide rod rotatably mounted on the support plate and symmetrically arranged, a torsion spring is sleeved on the rotating shaft of the guide rod, a fixed block abutting against the guide rod is fixed on the support plate, and the guide rod cooperates with the receiving rod.

[0015] A method for removing arsenic from rice using an adsorption method comprises the following steps: Step 1: Add the rice to be processed into the filter, and under the action of the intermittent discharging mechanism, the filter is blocked, and under the action of the filter, the arsenic contained in the rice is adsorbed; Step 2: In order to ensure that all the rice can be adsorbed, the rice needs to be vibrated to ensure that the rice is evenly distributed in the filter. At this time, under the action of the reciprocating mechanism, the filter is driven to reciprocate in the horizontal direction; Step 3: When the filter moves, it also drives the guide mechanism to move, and under the action of the limit assembly, the intermittent discharging mechanism moves, and after the rice in the filter is adsorbed, the filter is controlled to be in a conducting state to discharge the rice in the filter; Step 4: After the rice in the filter is discharged, the filter is blocked again under the action of the intermittent discharge mechanism. At this time, rice is added to the filter again and the above steps are repeated, thereby continuously removing arsenic from the rice.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the present invention removes arsenic from rice through a filter. In order to ensure the best arsenic removal effect of rice, the filter needs to be driven to reciprocate in the horizontal direction by a reciprocating mechanism so that the rice is evenly distributed in the filter. The filter also controls the movement of the guide mechanism through a limit assembly to change the movement state of the intermittent discharging mechanism. Under the action of the intermittent discharging mechanism, it is ensured that after the adsorption time of the rice reaches a set value, the filter is turned on so that the rice is discharged out of the filter after the arsenic removal is completed. In the present invention, a reciprocating mechanism is provided to cooperate with a filter to fully contact a part of a certain amount of rice with an adsorbent to remove arsenic, and an intermittent discharging mechanism is cooperated to discharge the treated part of the rice, and then the next part of the rice is processed, so as to realize continuous purification treatment of the certain amount of rice. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic structural diagram of an embodiment of a device for removing arsenic from rice by adsorption method.

[0018] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at point A in the middle.

[0019] Figure 3 This is a schematic structural diagram from another angle in an embodiment of a device for removing arsenic from rice by adsorption.

[0020] Figure 4 The present invention is a schematic diagram of a half-section structure of an embodiment of a device for removing arsenic from rice by adsorption method.

[0021] Figure 5 The present invention is a schematic diagram of the connection relationship between part of the reciprocating mechanism and part of the intermittent discharging mechanism in one embodiment of the equipment for removing arsenic from rice by adsorption method.

[0022] Figure 6 The present invention is a schematic diagram of the explosion structure of part of the reciprocating mechanism and part of the intermittent discharging mechanism in one embodiment of the equipment for removing arsenic from rice by adsorption method.

[0023] Figure 7 The present invention is a schematic diagram of the connection relationship between part of the intermittent discharging mechanism, part of the guiding mechanism and the limiting component in one embodiment of the equipment for removing arsenic from rice by adsorption method.

[0024] Figure 8 The present invention is a schematic diagram of the explosion structure of a part of the intermittent discharging mechanism in one embodiment of the equipment for removing arsenic from rice by adsorption method.

[0025] Fig. 9 The present invention is a schematic diagram of the exploded structure of part of the guiding mechanism and the limiting component in one embodiment of the device for removing arsenic from rice by adsorption method.

[0026] In the figure: 1. base; 2. fixing plate; 3. motor; 4. transmission rod; 5. limit block; 6. support rod; 7. guide groove No. 1; 8. guide groove No. 2; 9. filter; 10. fixing rod; 11. fixing sleeve; 12. supporting ring; 13. turntable; 14. discharge chute; 15. gear ring; 16. baffle; 17. supporting sleeve; 18. movable rod; 19. spring; 20. rack plate; 21. support plate; 22. straight groove No. 1; 23. inclined groove No. 1; 24. straight groove No. 2; 25. inclined groove No. 2; 26. guide rod; 27. torsion spring; 28. fixing block; 29. ​​receiving rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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.

[0028] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0029] See also Figure 1 to Figure 9 In an embodiment of the present invention, a device for removing arsenic from rice by adsorption method comprises: A base 1, on which a fixing plate 2 and a baffle 16 are symmetrically mounted; See also Figure 1 , Figure 3-Figure 6 , the filter 9 is arranged on the base 1, and a reciprocating mechanism connected to the filter 9 is arranged on the fixed plate 2, and the reciprocating mechanism can be operated when the rice is placed in the filter 9, and drive the filter 9 to reciprocate in the horizontal direction, and the reciprocating mechanism includes a motor 3 fixedly installed on one of the fixed plates 2, and a transmission rod 4 connected to the output shaft of the motor 3 and arranged in a hollow manner is rotatably installed on the fixed plate 2, and a support rod 6 fixedly connected to the filter 9 is movably installed in the transmission rod 4, and a clamping assembly connected to the transmission rod 4 and the support rod 6 is arranged on the fixed plate 2, and the clamping assembly is connected to the filter 9, wherein The engaging assembly includes a No. 1 guide groove 7 and a No. 2 guide groove 8 provided on the support rod 6, a limit block 5 engaged with the No. 1 guide groove 7 and the No. 2 guide groove 8 is fixed to the inner wall of the support rod 6, a guide structure connected with the filter 9 is provided on the fixed plate 2, the No. 1 guide groove 7 and the No. 2 guide groove 8 are connected with each other, and the guide structure mentioned above includes a fixed sleeve 11 fixedly installed on the other fixed plate 2, a fixed rod 10 fixedly connected with the filter 9 is movably installed in the fixed sleeve 11, a limit rod is fixed on the fixed rod 10, and a limit groove engaged with the limit rod is provided on the inner wall of the fixed sleeve 11.

[0030] In detail, the No. 1 guide groove 7 and the No. 2 guide groove 8 are arranged in a spiral shape, and the head and tail ends of the No. 1 guide groove 7 and the No. 2 guide groove 8 are connected to each other. In the initial state, the limit block 5 is located at the connection position of the No. 1 guide groove 7 and the No. 2 guide groove 8, so that the support rod 6 is located at the end of the stroke in the transmission rod 4. Since the limit rod and the limit groove are in a snap-fit ​​state, the fixed rod 10 can only move along the length direction of the fixed sleeve 11. When it is necessary to remove arsenic from the rice, the rice is placed in the filter 9. At this time, when the motor 3 is working, it drives the transmission rod 4 to rotate, thereby driving the limit block 5 to move. The limit block 5 will enter the No. 1 guide groove 7 and drive the support rod 6 to move. The rod 6 will also drive the filter 9 to move, so that the fixed rod 10 moves along the length direction of the fixed sleeve 11. Since the limit rod and the limit groove have a guiding function, the support rod 6 is ensured to move along the length direction of the transmission rod 4. When the limit block 5 moves to the connection position of the No. 1 guide groove 7 and the other end of the No. 2 guide groove 8, the filter 9 will move to the end of the stroke away from the transmission rod 4. At this time, the limit block 5 will enter the No. 2 guide groove 8, so that the support rod 6 moves toward the transmission rod 4 until the filter 9 is reset. Repeat the above steps to oscillate the filter 9, so that the rice is evenly distributed in the filter 9, so as to ensure a better arsenic removal effect from rice.

[0031] Also includes: See also Figure 1-Figure 3 , Figure 7-Figure 9 , an intermittent discharging mechanism is arranged on the baffle 16 and connected to the filter 9. The intermittent discharging mechanism can be activated when the filter 9 moves, and after the rice in the filter 9 is adsorbed, the rice is intermittently discharged to the outside of the filter 9. The intermittent discharging mechanism includes a supporting sleeve 17 fixedly mounted on the baffle 16 and symmetrically arranged, and a movable rod 18 is movably installed in the supporting sleeve 17. A spring 19 is sleeved on the supporting sleeve 17 and the movable rod 18, and a spring 19 is sleeved on the baffle 16 and connected to the movable rod 18 and the spring 19. A toothing assembly connected to a spring 19, the toothing assembly is connected to the filter 9 and the guiding mechanism, wherein the toothing assembly includes a rack plate 20 fixedly mounted on the end of the movable rod 18 away from the baffle 16, a support ring 12 is fixed to the bottom of the filter 9, a turntable 13 is slidably mounted on the support ring 12, a discharge trough 14 cooperating with the filter 9 is provided on the turntable 13, a toothed ring 15 meshing with the rack plate 20 is fixed on the support ring 12, the rack plate 20 is connected to the guiding mechanism and abuts against the spring 19.

[0032] It should be noted that a through hole that cooperates with the discharge chute 14 is provided at the bottom of the filter 9. Under the action of the support ring 12, the turntable 13 is fitted with the bottom of the filter 9, and the discharge chute 14 and the through hole are in a separated state, ensuring that the bottom of the filter 9 is in a blocked state. In the initial state, the spring 19 is in a compressed state, so that the movable rod 18 is located at the end of the stroke away from the support sleeve 17, and the rack plate 20 is moved to a meshing state with the gear ring 15. Under the action of the guide mechanism, the rack plate 20 will not deviate. When the motor 3 is working, the filter 9 will reciprocate in the horizontal direction, thereby driving the turntable 13 to move through the support ring 12, so that the gear ring 15 moves. Under the action of the rack plate 20, the gear ring 15 rotates, thereby driving the discharge chute 14 to move through the turntable 13. When the filter 9 moves toward the direction of the motor 3, the rack plate 20 moves away from the motor 3 under the action of the guide mechanism. The rack plate 20 also drives the movable rod 18 to move toward the support sleeve 17, and compresses the spring 19, so that the gear ring 15 no longer moves. When the filter 9 moves to the end of the stroke, the filter 9 moves in the other direction. When the filter 9 moves to the end of the stroke about to move to the other direction, under the action of the guide mechanism, the rack plate 20 moves again to the meshing position with the gear ring 15, and the above steps are repeated to make the gear ring 15 rotate intermittently in the same direction, thereby controlling the turntable 13 to rotate intermittently until the discharge chute 14 moves to the conducting position with the through hole. At this time, the rice will be discharged through the discharge chute 14. When the discharge chute 14 is separated from the through hole again, the untreated rice can be put into the filter 9 again and arsenic can be removed. Under the action of the turntable 13, it can be ensured that the rice processing time reaches the set time, and the rice is automatically discharged.

[0033] See also Figure 1-Figure 3 , Figure 7 , Fig. 9, a guiding mechanism is arranged on the baffle 16 and is connected to the intermittent discharging mechanism and the filter 9, the guiding mechanism can be activated when the intermittent discharging mechanism moves, and adjusts the movement state of the intermittent discharging mechanism, the guiding mechanism includes a supporting plate 21 fixedly mounted on the rack plate 20, a No. 1 straight groove 22 is provided on the supporting plate 21, and a No. 1 inclined groove 23 connected to the No. 1 straight groove 22 is also provided on the supporting plate 21, a yielding component connected to the No. 1 straight groove 22 and the No. 1 inclined groove 23 is provided on the baffle 16, the yielding component is connected to the filter 9, and the support plate 21 is connected to the limiting component, wherein the yielding component includes a No. 2 straight groove provided on the support plate 21 and connected to the No. 1 inclined groove 23 24, the support plate 21 is also provided with a No. 2 inclined slot 25 connected with the No. 2 straight slot 24 and the No. 1 straight slot 22, and the side wall of the filter 9 is fixed with a receiving rod 29 that cooperates with the No. 1 straight slot 22, the No. 1 inclined slot 23, the No. 2 straight slot 24 and the No. 2 inclined slot 25; a limit assembly is arranged on the baffle 16 and connected to the guide mechanism, the limit assembly can be actuated when the guide mechanism moves, and drives the intermittent discharging mechanism to move through the guide mechanism, the limit assembly includes a guide rod 26 rotatably mounted on the support plate 21 and symmetrically arranged, a torsion spring 27 is sleeved on the rotating shaft of the guide rod 26, a fixed block 28 abutting against the guide rod 26 is fixed on the support plate 21, and the guide rod 26 cooperates with the receiving rod 29.

[0034] Furthermore, in the initial state, the receiving rod 29 is located in the No. 1 straight groove 22, so that the support plate 21 and the rack plate 20 are located at the end of the stroke toward the filter 9, and the rack plate 20 is in a meshing state with the gear ring 15. When the filter 9 moves, the gear ring 15 is driven to move. Under the action of the rack plate 20, the gear ring 15 rotates, thereby driving the turntable 13 to rotate. The filter 9 also drives the receiving rod 29 to move, so that the receiving rod 29 moves along the length direction of the No. 1 straight groove 22. When the receiving rod 29 is moved, the receiving rod 29 moves along the length direction of the No. 1 straight groove 22. When the connecting rod 29 moves to the position where the No. 1 straight groove 22 and the No. 1 inclined groove 23 are connected, the connecting rod 29 will enter the No. 1 inclined groove 23, so that the support plate 21 moves away from the filter 9, and the support plate 21 will also drive the rack plate 20 to move, so that the gear ring 15 is separated from the rack plate 20. At this time, the gear ring 15 no longer moves. When the connecting rod 29 moves to the position of contact with the guide rod 26, the guide rod 26 rotates in the direction away from the fixed block 28 and drives the torsion spring 27 to move. When the connecting rod 29 moves to the position of contact with the guide rod 26, the guide rod 26 rotates in the direction away from the fixed block 28 and drives the torsion spring 27 to move. When the filter 9 moves into the second straight groove 24 and separates from the guide rod 26, the guide rod 26 is reset under the action of the torsion spring 27 and abuts against the fixed block 28. When the filter 9 moves to the end of the stroke, the receiving rod 29 moves to the end of the stroke on one side of the second straight groove 24. At this time, the filter 9 moves in the other direction, so that the receiving rod 29 slides in the second straight groove 24. When the receiving rod 29 moves to the other side of the guide rod 26 and abuts, the fixed block 28 abuts against the guide rod 26, which can ensure that the filter 9 is moved to the second straight groove 24. The receiving rod 29 is always sliding in the No. 2 straight groove 24. When the receiving rod 29 moves into the No. 2 inclined groove 25, the rack plate 20 is driven to move through the support plate 21. When the receiving rod 29 moves to the position of abutting against another guide rod 26, the guide rod 26 rotates. When the receiving rod 29 disengages from the No. 2 inclined groove 25 and enters the No. 1 straight groove 22, the rack plate 20 moves again to the meshing position with the gear ring 15 until the guide rod 26 returns to the initial position. The above steps are repeated, thereby making the turntable 13 rotate intermittently.

[0035] A method for removing arsenic from rice using an adsorption method comprises the following steps: Step 1: Add the rice to be processed into the filter 9, and under the action of the intermittent discharging mechanism, the filter 9 is blocked, and under the action of the filter 9, the arsenic contained in the rice is adsorbed; Step 2: In order to ensure that all the rice can be adsorbed, the rice needs to be vibrated to ensure that the rice is evenly distributed in the filter 9. At this time, under the action of the reciprocating mechanism, the filter 9 is driven to reciprocate in the horizontal direction; Step 3: When the filter 9 moves, it also drives the guide mechanism to move, and under the action of the limit assembly, the intermittent discharging mechanism moves, and after the rice in the filter 9 is adsorbed, the filter 9 is controlled to be in a conducting state to discharge the rice in the filter 9; Step 4: After the rice in the filter 9 is discharged, the filter 9 is blocked again under the action of the intermittent discharge mechanism. At this time, rice is added to the filter 9 again and the above steps are repeated, thereby continuously removing arsenic from the rice.

[0036] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A device for removing arsenic from rice by adsorption, comprising: A base (1), wherein a fixing plate (2) and a baffle (16) are fixedly mounted on the base (1) and are symmetrically arranged; A filter (9) is arranged on the base (1); a reciprocating mechanism connected to the filter (9) is arranged on the fixed plate (2); the reciprocating mechanism is capable of being activated when rice is placed in the filter (9) and driving the filter (9) to reciprocate in a horizontal direction; It is characterized by further comprising: an intermittent discharge mechanism, arranged on the baffle (16) and connected to the filter (9), the intermittent discharge mechanism being capable of operating when the filter (9) moves, and discharging the rice intermittently to the outside of the filter (9) after the rice in the filter (9) has been adsorbed; a guide mechanism, arranged on the baffle (16) and connected to the intermittent discharge mechanism and the filter (9), the guide mechanism being able to operate when the intermittent discharge mechanism moves and to adjust the movement state of the intermittent discharge mechanism; A limit assembly is arranged on the baffle (16) and connected to the guide mechanism, the limit assembly being able to act when the guide mechanism moves, and driving the intermittent discharge mechanism to move through the guide mechanism.

2. The device for removing arsenic from rice by adsorption method according to claim 1, characterized in that: The reciprocating mechanism comprises a motor (3) fixedly mounted on one of the fixed plates (2); a transmission rod (4) connected to an output shaft of the motor (3) and arranged in a hollow shape is rotatably mounted on the fixed plate (2); a support rod (6) fixedly connected to the filter (9) is movably mounted in the transmission rod (4); a clamping assembly connected to the transmission rod (4) and the support rod (6) is arranged on the fixed plate (2); and the clamping assembly is connected to the filter (9).

3. The device for removing arsenic from rice by adsorption method according to claim 2, characterized in that: The engaging assembly comprises a first guide groove (7) and a second guide groove (8) provided on the support rod (6); a limit block (5) engaging with the first guide groove (7) and the second guide groove (8) is fixed to the inner wall of the support rod (6); a guide structure connected to the filter (9) is provided on the fixing plate (2); and the first guide groove (7) and the second guide groove (8) are connected to each other.

4. The device for removing arsenic from rice by adsorption method according to claim 3, characterized in that: The guide structure comprises a fixed sleeve (11) fixedly mounted on the other fixed plate (2), a fixed rod (10) fixedly connected to the filter (9) being movably mounted in the fixed sleeve (11), a limiting rod being fixed on the fixed rod (10), and a limiting groove being formed on the inner wall of the fixed sleeve (11) and engaging with the limiting rod.

5. The device for removing arsenic from rice by adsorption method according to claim 1, characterized in that: The intermittent discharging mechanism comprises a supporting sleeve (17) fixedly mounted on the baffle (16) and symmetrically arranged, a movable rod (18) being movably mounted in the supporting sleeve (17), a spring (19) being sleeved on the supporting sleeve (17) and the movable rod (18), a toothing assembly connected to the movable rod (18) and the spring (19) being arranged on the baffle (16), and the toothing assembly being connected to the filter (9) and the guiding mechanism.

6. The device for removing arsenic from rice by adsorption method according to claim 5, characterized in that: The gearing assembly comprises a rack plate (20) fixedly mounted on one end of the movable rod (18) away from the baffle (16); a support ring (12) is fixedly mounted on the bottom of the filter (9); a turntable (13) is slidably mounted on the support ring (12); a discharge trough (14) cooperating with the filter (9) is provided on the turntable (13); a gear ring (15) meshing with the rack plate (20) is fixedly mounted on the support ring (12); the rack plate (20) is connected to the guide mechanism and abuts against the spring (19).

7. The device for removing arsenic from rice by adsorption method according to claim 6, characterized in that: The guide mechanism comprises a support plate (21) fixedly mounted on the rack plate (20), the support plate (21) being provided with a first straight groove (22), the support plate (21) being further provided with a first inclined groove (23) connected to the first straight groove (22), the baffle plate (16) being provided with a clearance component connected to the first straight groove (22) and the first inclined groove (23), the clearance component being connected to the filter (9), and the support plate (21) being connected to the limit component.

8. The device for removing arsenic from rice by adsorption method according to claim 7, characterized in that: The yielding assembly comprises a No. 2 straight groove (24) provided on the support plate (21) and connected to the No. 1 inclined groove (23); a No. 2 inclined groove (25) provided on the support plate (21) and connected to the No. 2 straight groove (24) and the No. 1 straight groove (22); and a receiving rod (29) cooperating with the No. 1 straight groove (22), the No. 1 inclined groove (23), the No. 2 straight groove (24) and the No. 2 inclined groove (25) is fixed to the side wall of the filter (9).

9. The device for removing arsenic from rice by adsorption method according to claim 8, characterized in that: The limiting assembly comprises a guide rod (26) rotatably mounted on the support plate (21) and symmetrically arranged, a torsion spring (27) being sleeved on a rotating shaft of the guide rod (26), a fixing block (28) abutting against the guide rod (26) being fixed on the support plate (21), and the guide rod (26) cooperating with the receiving rod (29).

10. A method for removing arsenic from rice by using an adsorption method, using the device for removing arsenic from rice by using an adsorption method as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: adding the rice to be processed into the filter (9), and under the action of the intermittent discharge mechanism, the filter (9) is blocked, and under the action of the filter (9), the arsenic contained in the rice is adsorbed; Step 2: In order to ensure that all the rice can be adsorbed, the rice needs to be shaken to ensure that the rice is evenly distributed in the filter (9). At this time, under the action of the reciprocating mechanism, the filter (9) is driven to reciprocate in the horizontal direction; Step 3: When the filter (9) moves, it also drives the guide mechanism to move, and under the action of the limit assembly, the intermittent discharge mechanism moves, and after the rice in the filter (9) is adsorbed, the filter (9) is controlled to be in a conducting state, so that the rice in the filter (9) is discharged; Step 4: After the rice in the filter (9) is discharged, the filter (9) is blocked again under the action of the intermittent discharge mechanism. At this time, rice is added to the filter (9) again and the above steps are repeated, thereby continuously removing arsenic from the rice.

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