Automatic sodium metabisulfite screening device

Abstract

The utility model is suitable for screening device technical field provides a kind of sodium pyrosulfite automatic screening device, including: screening box, its top wall is equipped with feed inlet, and bottom wall is equipped with discharge port, rectangular frame, it is set in screening box, and its inside movable mounting has multiple screening plates, rotating component, it is fixedly connected on rectangular frame side wall, and with multiple screening plates rotation connection, it is used to adjust the overturning angle of multiple screening plates, the device is vibrated screening mechanism by being set to control screening plate and carry out vibration screening, to screen out the part of smaller volume in material, and along discharge port and be discharged into first receiving box, subsequent again utilize rotating component control screening plate rotation, make the bulky material on it fall down, and be received by second receiving box, this kind of mode can avoid the mixture between different volume materials, simultaneously by the mode of vibration can shake out the material jammed in screen hole, avoid its plugging screen hole.

Description

Technical Field

[0001] This utility model belongs to the technical field of screening devices, and in particular relates to an automatic screening device for sodium metabisulfite. Background Technology

[0002] A reaction vessel is a container used for physical or chemical reactions. In the preparation of sodium metabisulfite, it needs to be added to a reaction vessel for uniform mixing. During the preparation of sodium metabisulfite, soda ash and water are stirred evenly at a certain molar ratio. When Na2Co3nH2O is formed in lumps, it is placed into the reaction vessel, with a certain gap between the lumps. Then SO2 is introduced, and the added sodium metabisulfite and SO2 are stirred and mixed evenly by the stirring blades in the reaction vessel until the reaction is completed. The lumps are then removed, crushed, and the finished product is obtained. Industrial sodium metabisulfite needs to be sieved by a sieving device after drying before being bagged and packaged.

[0003] Chinese utility model patent CN210935919U discloses an automatic sodium metabisulfite sieving device and an anti-clogging sieving device for sodium metabisulfite filling. The device includes a sieving chamber containing an inclined cylindrical screen with open ends. A cleaning brush is positioned between the cylindrical screen and the top of the sieving chamber. Parallel and spaced guide rods are positioned on the top of the cleaning brush, each guide rod passing through the top of the sieving chamber. A protective cover is located on the top of the sieving chamber outside the guide rods. A transmission plate is located inside the protective cover, and the upper ends of each guide rod are fixedly connected to the transmission plate. A return spring is fitted onto each guide rod inside the protective cover. A connecting shaft is rotatably connected inside the protective cover via bearings and a bearing seat. A cam that cooperates with the transmission plate is fixedly connected to the connecting shaft. This utility model aims to provide a compact, effective, and anti-clogging sieving device for sodium metabisulfite filling, used for sieving sodium metabisulfite before filling.

[0004] However, the above-mentioned device has the following technical problems in actual use:

[0005] 1. The above-mentioned device uses cleaning brushes on the outside of the cylindrical screen to remove materials blocked in the screen holes. However, since the material passes through the inside of the cylindrical screen, it will generally block the screen holes on the inside of the screen. Cleaning from the outside cannot completely remove the material from the screen holes. In addition, the above-mentioned device mentions that the cleaning brush is inserted into the screen holes for cleaning. However, friction and collision will occur between the cylindrical screen and the cleaning brush during rotation. After long-term operation, the brush bristles will wear down, thereby reducing the cleaning quality.

[0006] Second, in addition, the above-mentioned device uses a cylindrical screen to screen materials of different sizes. However, because the cylindrical screen is set at an incline, if too much material is put in at one time, the fine particles cannot be screened through the screen holes due to collisions between them or the pushing of other materials as the material rolls down its inclined surface. Instead, they are discharged along with the larger materials, resulting in incomplete screening and poor screening effect. Utility Model Content

[0007] This utility model provides an automatic sodium metabisulfite screening device, which aims to solve the problems mentioned in the background art. In actual use, the material will block the screen holes of the cylindrical screen. Cleaning from the outside with a cleaning brush is not thorough, and the cleaning brush will wear out due to long-term friction. In addition, because the cylindrical screen is set at an angle, when too much material is put in, small-volume material will be discharged together with large-volume material due to collision and rolling. It is impossible to achieve the purpose of thoroughly screening the material.

[0008] This utility model is implemented as follows: an automatic sodium metabisulfite sieving device includes: a sieving box with an inlet on its top wall and an outlet on its bottom wall, a control valve fixedly installed inside the outlet; a rectangular frame disposed within the sieving box, with multiple sieving plates movably mounted inside, the multiple sieving plates arranged sequentially in a horizontal direction; and a vibrating sieving mechanism, comprising: a shaking component rotatably connected to the sieving box and movably connected to the bottom of the rectangular frame, the shaking component controlling the longitudinal movement of the rectangular frame; reset components movably connected to the inner wall of the sieving box on opposite side walls of the rectangular frame; a rotating component fixed to the side wall of the rectangular frame and rotatably connected to the multiple sieving plates, used to adjust the flipping angle of the multiple sieving plates; and a... The material receiving component is slidably disposed at the bottom of the screening box and includes a first receiving box and a second receiving box. The material receiving component is used to drive the first receiving box and the second receiving box to move sequentially below the discharge port. In this scheme, after the material is fed into the screening box through the feed port, it will fall onto multiple screening plates. At this time, the material receiving component controls the first receiving box to move below the discharge port, the shaking component controls the screening plates to lift upwards, and then the reset component controls the screening plates to reset downwards. This process is repeated to control the rectangular frame to shake (vibrate), thereby achieving vibration screening of the material on it. This allows small-volume materials (that can pass through the screen holes on the screening plates) to fall and enter the first receiving box. After screening is completed, the rotating component controls the screening plates to flip over, and at the same time, the second receiving box moves to the discharge port position to collect large-volume materials.

[0009] It should be explained that during the screening process, some large-volume materials may get stuck in the screen holes. At this time, when the rotating component controls the screen plate to flip and collect the large-volume materials, the vibrating screening mechanism can also vibrate at the same time, thereby shaking out the materials stuck in the screen holes and preventing them from getting stuck in the screen holes and affecting subsequent work.

[0010] This device uses a vibrating screening mechanism to control the screening plate to vibrate and screen the material, thereby screening out the smaller volume portion of the material and discharging it into the first receiving box through the discharge port. Subsequently, the rotating component controls the screening plate to rotate, causing the larger volume material on it to fall and be received by the second receiving box. This method can avoid the mixing of materials of different volumes, and at the same time, the vibration can shake out the material stuck in the screen holes, preventing them from clogging the screen holes.

[0011] Preferably, the shaking assembly includes: two rotating shafts rotatably connected within the screening box, the two rotating shafts being symmetrically arranged and located below the rectangular frame, each rotating shaft having at least one eccentric block fixedly attached to its outer wall, the outer wall of the eccentric block abutting against the bottom wall of the rectangular frame, a mounting plate fixedly attached to the outer wall of the screening box, a drive motor fixedly mounted on the mounting plate, the ends of the two rotating shafts extending to the outside of the screening box on the same side, and the output end of the drive motor being fixedly connected to one end of the rotating shaft. Each part has a transmission wheel fixedly installed on its outer wall, and a transmission belt is connected between the two transmission wheels. In this scheme, when the output end of the drive motor rotates, it will drive the rotating shaft fixed to it to rotate. The rotating shaft drives the rotating shaft on the other side to rotate through the cooperation between the transmission wheel and the transmission belt. The two rotating shafts rotate synchronously and use the eccentric blocks on them to control the rectangular frame to move up and down. The eccentric block has a protrusion that is off-center. When the protrusion touches the bottom wall of the rectangular frame, it will push the rectangular frame away from the rotating shaft, thereby raising the height of the eccentric block.

[0012] Preferably, the reset assembly includes: a sliding sleeve fixedly installed on the side wall of the rectangular frame, and a sliding groove vertically formed on the inner side wall of the screening box, a sliding rod fixedly connected in the sliding groove, the sliding sleeve slidably connected in the sliding groove and sleeved on the outside of the sliding rod, and a reset spring sleeved on the outside of the sliding rod at the top of the sliding sleeve; in this scheme, when the rectangular frame moves longitudinally away from the rotation axis, the sliding sleeve on its side wall slides longitudinally upward in the sliding groove simultaneously, and the sliding sleeve slides along the sliding rod and squeezes the reset spring. When the protrusion of the eccentric block disengages from the bottom wall of the rectangular frame, the rebound kinetic energy generated by the reset spring acts on the sliding sleeve to drive the rectangular frame to sink and reset.

[0013] Preferably, each of the screening plates is rotatably connected to the rectangular frame via rotating shafts located at both ends. The rotating assembly includes: a movable groove formed on the side wall of the screening box; a connecting box disposed within the movable groove and fixedly connected to the side wall of the rectangular frame; one rotating shaft of each screening plate extends into the connecting box and a drive gear is fixedly connected to its end; a drive rack is slidably connected to the inner bottom wall of the connecting box; the drive rack meshes with multiple drive gears. An electric push rod is also fixedly connected to one side wall of the box, and its output end is fixedly connected to one end of the drive rack. In this scheme, the connecting box is slidably connected in the movable groove, and the connecting box moves up and down with the rectangular frame. When it is necessary to control the rotation of multiple screening plates, the output end of the electric push rod extends and pushes the drive rack to slide on the bottom wall of the connecting box. At the same time, the drive rack controls the multiple drive gears meshing with it to rotate. Since the drive gears are fixedly installed on the rotating shaft, they will control the rotating shaft to rotate, and then drive the screening plates to rotate through the rotating shaft.

[0014] It should be explained that a certain gap is reserved between two adjacent screening plates. This gap ensures that the screening plates will not collide with each other when they rotate, and at the same time, this gap must ensure that the material will not fall down.

[0015] Preferably, the receiving assembly includes: two sliding guide rails arranged parallel to each other below the screening box, a sliding plate slidably connected to the two sliding guide rails, and the first receiving box and the second receiving box bearing on the sliding plate, the first receiving box and the second receiving box being symmetrically distributed on the sliding plate; in this scheme, the screening box is fixedly installed on the working ground by multiple support columns on its outer wall, and two sliding guide rails are provided on the working ground, with sliding plates slidably connected to the sliding guide rails. The first receiving box and the second receiving box are placed on the sliding plate. When it is necessary to receive small volume materials, the first receiving box moves below the discharge port, and when it is necessary to receive large volume materials, the second receiving box moves below the discharge port.

[0016] Preferably, a rectangular enclosure is fixedly connected to the top of the rectangular frame; in this scheme, by setting the rectangular enclosure, the material can be prevented from bouncing too far during the vibration of the screening plate, and the material can also be prevented from leaving the rectangular frame (or from being ejected from the screening box along the movable chute).

[0017] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides an automatic sodium metabisulfite sieving device:

[0018] 1. This device controls the screening plate to vibrate and screen the material by setting a vibrating screening mechanism, thereby screening out the smaller part of the material and discharging it into the first receiving box through the discharge port. Subsequently, the rotating component controls the screen plate to rotate, causing the larger volume material on it to fall down and be received by the second receiving box. This method can avoid the mixing of materials of different volumes. At the same time, the vibration can shake out the material stuck in the screen holes, preventing it from clogging the screen holes. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the present invention;

[0020] Figure 2 This utility model Figure 1 Enlarged view of the structure at point A in the middle;

[0021] Figure 3 This is a partial top view of the structure of this utility model;

[0022] Figure 4 This is a side sectional view of the present invention;

[0023] In the picture:

[0024] 1. Screening box; 11. Feed inlet; 12. Control valve; 13. First receiving box; 14. Second receiving box;

[0025] 2. Rectangular frame; 21. Sieve plate; 211. Rotating shaft; 22. Rectangular enclosure;

[0026] 3. Vibrating screening mechanism; 31. Vibration assembly; 311. Rotating shaft; 312. Eccentric block; 313. Mounting plate; 314. Drive motor; 315. Transmission wheel; 316. Transmission belt; 32. Reset assembly; 321. Sliding sleeve; 322. Sliding groove; 323. Sliding rod; 324. Reset spring;

[0027] 4. Rotating assembly; 41. Movable slot; 42. Connecting box; 43. Drive gear; 44. Drive rack; 45. Electric push rod;

[0028] 5. Receiving assembly; 51. Sliding guide rail; 52. Sliding plate. Detailed Implementation

[0029] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0030] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Please see Figure 1-4This utility model provides a technical solution: an automatic sodium metabisulfite sieving device, comprising: a sieving box 1, with an inlet 11 on its top wall and an outlet on its bottom wall, a control valve 12 fixedly installed inside the outlet; a rectangular frame 2, disposed inside the sieving box 1, with multiple sieving plates 21 movably installed inside, the multiple sieving plates 21 arranged sequentially in a horizontal direction; and a vibrating sieving mechanism 3, which includes: a shaking component 31 rotatably connected inside the sieving box 1 and movably connected to the bottom of the rectangular frame 2, the shaking component 31 being used to... The rectangular frame 2 is used to control the longitudinal movement of the rectangular frame 2. The two side walls of the rectangular frame 2 are also provided with reset components 32 that are movably connected to the inner wall of the screening box 1. The rotating component 4 is fixed to the side wall of the rectangular frame 2 and is rotatably connected to multiple screening plates 21. It is used to adjust the flip angle of the multiple screening plates 21. The receiving component 5 is slidably arranged at the bottom of the screening box 1 and has: a first receiving box 13 and a second receiving box 14. The receiving component 5 is used to drive the first receiving box 13 and the second receiving box 14 to move sequentially to below the discharge port.

[0035] Furthermore, the shaking assembly 31 includes: two rotating shafts 311 rotatably connected inside the screening box 1, the two rotating shafts 311 being symmetrically arranged and located below the rectangular frame 2, at least one eccentric block 312 being fixedly connected to the outer wall of each rotating shaft 311, the outer wall of the eccentric block 312 abutting against the bottom wall of the rectangular frame 2, a mounting plate 313 being fixedly connected to the outer wall of the screening box 1, a drive motor 314 being fixedly mounted on the mounting plate 313, the ends of the two rotating shafts 311 extending to the outside of the screening box 1 on the same side, and the output end of the drive motor 314 being fixedly connected to the end of one of the rotating shafts 311, a transmission wheel 315 being fixedly mounted on the outer wall of the ends of the two rotating shafts 311, and a transmission belt 316 being connected between the two transmission wheels 315.

[0036] Furthermore, the reset assembly 32 includes: a sliding sleeve 321 fixedly installed on the side wall of the rectangular frame 2, and a sliding groove 322 vertically opened on the inner side wall of the screening box 1, a sliding rod 323 fixedly connected in the sliding groove 322, the sliding sleeve 321 slidably connected in the sliding groove 322 and sleeved on the outside of the sliding rod 323, and a reset spring 324 is also sleeved on the outside of the sliding rod 323 at the top of the sliding sleeve 321.

[0037] Specifically, in this device, at least two sliding sleeves 321 are provided on each side wall of the rectangular frame 2, and the two sliding sleeves 321 are symmetrically fixedly installed on the side wall of the rectangular frame 2, which can ensure the stability of the rectangular frame 2 after normal operation and prevent problems such as skewing.

[0038] Furthermore, each screening plate 21 is rotatably connected to the rectangular frame 2 via rotating shafts 211 located at both ends. The rotating assembly 4 includes: a movable groove 41 opened on the side wall of the screening box 1, a connecting box 42 disposed in the movable groove 41, and the connecting box 42 fixed to the side wall of the rectangular frame 2. The rotating shaft 211 on one side of each screening plate 21 extends into the connecting box 42 and a drive gear 43 is fixedly connected to its end. A drive rack 44 is slidably connected to the inner bottom wall of the connecting box 42. The drive rack 44 and multiple drive gears 43 are meshed together. An electric push rod 45 is also fixedly connected to one side wall of the connecting box 42, and its output end is fixedly connected to one end of the drive rack 44.

[0039] Furthermore, the receiving assembly 5 includes two sliding guide rails 51 arranged parallel to each other below the screening box 1, a sliding plate 52 slidably connected to the two sliding guide rails 51, and a first receiving box 13 and a second receiving box 14 supported on the sliding plate 52, the first receiving box 13 and the second receiving box 14 being symmetrically distributed on the sliding plate 52.

[0040] Specifically, in this device, the length of the sliding guide rail 51 is not less than the sum of the lengths of the two sliding plates 52. The purpose is to stably ensure that the first receiving box 13 or the second receiving box 14 is below the discharge port and to collect the screened material.

[0041] Furthermore, a rectangular enclosure 22 is fixedly connected to the top of the rectangular frame 2.

[0042] Working principle and usage process of this utility model:

[0043] In this device, the first receiving box 13 is moved to the bottom of the screening box 1 by the movement of the receiving component 5. Then, the material is fed into the screening box 1 from the feed port 11, so that the material falls onto the screening plate 21. Then, the drive motor 314 drives the two rotating shafts 311 to rotate through the transmission wheel 315 and the transmission belt 316. The two rotating shafts 311 control the eccentric block 312 on their outer wall to rotate. The contact between the eccentric block 312 and the bottom of the rectangular frame 2 drives the rectangular frame 2 to move longitudinally.

[0044] During the longitudinal vibration process, the screening plate 21 screens the material on it. Small-volume materials pass through the screen holes and enter the first receiving box 13 through the discharge port.

[0045] After screening is completed, the electric push rod 45 drives multiple screening plates 21 to rotate through the cooperation of the drive rack 44 and drive gear 43. After rotating to a certain angle, the second receiving box 14 is moved to the discharge port position, and the large volume of material on the screening plate 21 falls into the second receiving box 14.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic sodium metabisulfite sieving device, characterized in that: include: The screening box (1) has a feed inlet (11) on its top wall and a discharge outlet on its bottom wall. A control valve (12) is fixedly installed inside the discharge outlet. A rectangular frame (2) is set inside the screening box (1), and multiple screening plates (21) are movably installed inside it, with the multiple screening plates (21) arranged sequentially in the horizontal direction; The vibrating screening mechanism (3) has the following features: A shaking component (31) is rotatably connected inside the screening box (1) and movably connected to the bottom of the rectangular frame (2). The shaking component (31) is used to control the longitudinal jumping of the rectangular frame (2). The two opposite sides of the rectangular frame (2) are also provided with a reset component (32) movably connected to the inner wall of the screening box (1). A rotating assembly (4) is fixed to the side wall of the rectangular frame (2) and rotatably connected to a plurality of sieve plates (21), which is used to adjust the flip angle of the plurality of sieve plates (21). In addition, a receiving assembly (5) is slidably disposed at the bottom of the screening box (1) and has: a first receiving box (13) and a second receiving box (14), the receiving assembly (5) being used to drive the first receiving box (13) and the second receiving box (14) to move sequentially below the discharge port.

2. The automatic sodium metabisulfite sieving device as described in claim 1, characterized in that: The jitter component (31) includes: Two rotating shafts (311) are rotatably connected inside the screening box (1). The two rotating shafts (311) are symmetrically arranged and located below the rectangular frame (2). At least one eccentric block (312) is fixed to the outer wall of each rotating shaft (311). The outer wall of the eccentric block (312) abuts against the bottom wall of the rectangular frame (2). An installation plate (313) is also fixedly connected to the outer wall of the screening box (1). A drive motor (314) is fixedly installed on the installation plate (313). The ends of the two rotating shafts (311) on the same side extend to the outside of the screening box (1), and the output end of the drive motor (314) is fixedly connected to one of the ends of the rotating shafts (311). A transmission wheel (315) is fixedly installed on the outer wall of each end of the two rotating shafts (311), and a transmission belt (316) is connected between the two transmission wheels (315).

3. The automatic sodium metabisulfite sieving device as described in claim 1, characterized in that: The reset component (32) includes: A sliding sleeve (321) is fixedly installed on the side wall of the rectangular frame (2), and a sliding groove (322) is vertically opened on the inner side wall of the screening box (1), and a sliding rod (323) is fixedly connected in the sliding groove (322); The sliding sleeve (321) is slidably connected to the sliding groove (322) and sleeved on the outside of the sliding rod (323). A return spring (324) is also sleeved on the outside of the sliding rod (323) at the top of the sliding sleeve (321).

4. The automatic sodium metabisulfite sieving device as described in claim 1, characterized in that: Each of the sieving plates (21) is rotatably connected to the rectangular frame (2) via rotating shafts (211) located at both ends thereto, and the rotating assembly (4) includes: An movable groove (41) is provided on the side wall of the screening box (1), and a connecting box (42) is provided in the movable groove (41), and the connecting box (42) is fixed to the side wall of the rectangular frame (2); The rotating shaft (211) on one side of each of the screening plates (21) extends into the connecting box (42) and a drive gear (43) is fixedly connected to its end. A drive rack (44) is slidably connected to the inner bottom wall of the connecting box (42). The drive rack (44) and multiple drive gears (43) are meshed together. An electric push rod (45) is also fixedly connected to one side wall of the connecting box (42), and its output end is fixedly connected to one end of the drive rack (44).

5. The automatic sodium metabisulfite sieving device as described in claim 1, characterized in that: The receiving assembly (5) includes: Two sliding guide rails (51) are arranged parallel to each other below the screening box (1). A sliding plate (52) is slidably connected on the two sliding guide rails (51), and the first receiving box (13) and the second receiving box (14) are carried on the sliding plate (52). The first receiving box (13) and the second receiving box (14) are symmetrically distributed on the sliding plate (52).

6. The automatic sodium metabisulfite sieving device as described in claim 1, characterized in that: The top of the rectangular frame (2) is also fixedly connected to a rectangular enclosure (22).

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