Industrial crude iodine classification device

Abstract

The invention provides an industrial crude iodine classification device, comprising an outer shell, wherein two ends of the outer shell are provided with a feed hopper and a discharge hopper at different heights, a screening conveyor belt is fixed inside the outer shell and extends from the lower end of the feed hopper to the upper end of the discharge hopper, the screening conveyor belt is composed of an outer material belt with a grid shape on the outer side and an inner material belt with a screen on the inner side, and the outer material belt and the inner material belt are connected by a group of transmission wheel groups for differential transmission, and the relative movement between the outer material belt and the inner material belt is utilized through the speed difference between the outer material belt and the inner material belt to drive the iodine blocks between the grid bars of the outer material belt, thereby realizing flexible driving of the iodine blocks, avoiding damage to the iodine blocks while driving the iodine blocks to be screened, and a collecting hopper is fixed on the inner side of the inner material belt to collect fine crude iodine particles and connect them to a separation hopper on one side of the outer shell for discharge, and the invention has good development prospects.

Description

Technical Field

[0001] The present invention relates to the field of crude iodine processing, and specifically to an industrial crude iodine classification device. Background Art

[0002] Iodine, as one of the important inorganic chemical raw materials, plays a crucial role in the national economy. High-purity

[0003] refined iodine is a scarce resource worldwide. At room temperature, refined iodine is purple-black scale crystals or plate crystals with a metallic luster, brittle, easy to sublimate, and has a special pungent odor.

[0004] However, due to being squeezed during the production process, temporary storage or transportation, many large crude iodine crystals are divided into small crystals or even crude iodine particles. These small crystals have a large contact area with air, are prone to moisture absorption, sublimation, and are easily inhaled by people. They are not easy to store, which will lead to a decline in the quality and output of the produced crude iodine and need to be screened out. Moreover, the traditional vibrating screen device will bring more impacts and granulation of crude iodine through the screening method of a tremor motor and a hard screen mesh.

[0005] Therefore, a new type of industrial crude iodine classification device is needed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide an industrial crude iodine classification device.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] An industrial crude iodine classification device includes a housing. Feed hoppers and discharge hoppers are arranged at different heights at both ends of the housing. A screening conveyor belt is fixed inside the housing, extending from the lower end of the feed hopper to the upper end of the discharge hopper. The screening conveyor belt is composed of an outer material belt with a grid shape on the outside and an inner material belt with a sieve mesh on the inside, for screening small crude iodine particles. An aggregate hopper is fixed inside the inner material belt to collect small crude iodine particles and is connected to a separation hopper on one side of the housing for discharging.

[0009] As a further solution of the present invention: The screening conveyor belt includes side plates, drive shafts, end frames, an outer material belt, and an inner material belt. A set of drive shafts and an end frame are arranged between the side plates. The two ends of the outer material belt and the inner material belt are respectively connected to a drive shaft and an end frame, and the drive shaft is in transmission connection with a drive motor inside the side wall guard plate of the housing for driving.

[0010] As a further solution of the present invention: The drive shafts are in transmission connection through a set of transmission pulley groups for differential transmission.

[0011] As a further solution of the present invention: The end frame is slidably arranged at one end of the side plate and is adjusted in position along the conveying direction of the screening conveyor belt by rotating through a bolt structure.

[0012] As a further solution of the present invention: The end frame is composed of two sets of roller bodies arranged in an arc shape. The arrangement curve of the inner roller bodies is offset inward from the center of the arrangement curve of the outer roller bodies, and the radius is larger.

[0013] As a further solution of the present invention: The outer material belt is composed of side skirts and grid bars. The two sides are symmetrically arranged side skirts with step surfaces in the shape of right trapezoids, and the side skirts are connected by grid bars with a triangular cross-section.

[0014] As a further solution of the present invention: The inner material belt includes a belt body. Strip-shaped guide grooves are recessed on the surface of the belt body, and filter meshes are arranged in the guide grooves.

[0015] As a further solution of the present invention: The guide grooves are in the shape of triangular arrows.

[0016] As a further solution of the present invention: The arrow directions of the guide grooves are set in segments, and the arrow directions between adjacent segments are set in opposite directions.

[0017] As a further solution of the present invention: Raised granules are arranged at intervals on the inner side of the grid bars of the outer material belt. Beneficial effects

[0018] 1. The two ends of the outer material belt and the inner material belt of the present invention are respectively connected to a driving shaft and an end frame. The driving shaft is in transmission connection with a driving motor in the side wall guard plate of the housing for driving. The driving shafts are in differential transmission connection through a set of transmission pulley groups. The relative movement between the outer material belt and the inner material belt is used to drive the iodine blocks between the grid bars of the outer material belt, realizing the flexible driving of the iodine blocks, and avoiding the damage to the iodine blocks while driving the iodine blocks to move for screening.

[0019] 2. One end of the outer material belt and the inner material belt of the present invention is tightened by the end frame. The end frame is slidably arranged at one end of the side plate, and the position along the conveying direction of the screening conveyor belt is adjusted by rotating through a bolt structure. The end frame is composed of two sets of roller bodies arranged in an arc shape. The arrangement curve of the inner roller bodies is offset inward from the center of the arrangement curve of the outer roller bodies, and the radius is larger. The offset and large diameter setting of the arrangement curve of the inner roller bodies of the end frame make the upper and lower positions closer to the two ends of the arrangement curve of the outer roller bodies in the horizontal height, reducing the gap and improving the fitting degree of the outer material belt and the inner material belt. The slidable arrangement of the end frame can play a role in adjusting the position of the end frame, avoiding the non-fitting of the outer material belt and the inner material belt after the inner diameter becomes larger due to wear during the long-term operation of the screening conveyor belt. By adjusting the position of the end frame, the outer material belt and the inner material belt of the screening conveyor belt are re-tightened and fitted.

[0020] 3. The surface of the inner material of the present invention is recessed with strip-shaped guide grooves. The guide grooves are in the shape of triangular arrows. The triangular structure is used to limit the crude iodine with the upper outer material belt, drive the crude iodine block to move along the triangular side, and drive the iodine block on the conveyor belt to move laterally, facilitating the separation of fine particles. Moreover, the arrow directions of the guide grooves are set in segments, and the arrow directions between adjacent segments are set in opposite directions. By setting the arrow directions in opposite directions, the crude iodine is guided in the reverse direction to prevent the crude iodine from accumulating at a single point. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the screening conveyor belt structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the outer material belt structure of the present invention.

[0024] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at A.

[0025] Figure 5 It is a schematic diagram of the inner material belt structure of the present invention.

[0026] Figure 6 It is a schematic diagram of the aggregate hopper structure of the present invention.

[0027] Figure 7 It is a schematic diagram of the installation of the aggregate hopper of the present invention.

[0028] Figure 8 It is a schematic diagram of the end frame structure of the present invention.

[0029] Figures 1-8 In the figure: 1 - outer shell, 2 - feed hopper, 3 - screening conveyor belt, 31 - side plate, 32 - outer material belt, 321 - side skirt, 322 - grid bar, 323 - convex particle, 33 - inner material belt, 331 - belt body, 332 - guide groove, 333 - sieve mesh, 34 - drive shaft, 35 - transmission wheel set, 36 - end frame, 37 - aggregate hopper, 4 - drive motor, 5 - guard plate, 6 - discharge hopper, 7 - separation hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the specific technical solutions of the present invention will be clearly and completely described in conjunction with the Figures 1-8 in the accompanying drawings of the specification of the present invention;

[0031] Please refer to Figures 1-8 , Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention; Figure 2 It is a schematic diagram of the screening conveyor belt structure of the present invention; Figure 3It is a schematic diagram of the structure of the outer material belt of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A; Figure 5 It is a schematic diagram of the inner material belt structure of the present invention; Figure 6 It is a schematic diagram of the structure of the collecting hopper of the present invention; Figure 7 It is a schematic diagram of the installation of the collecting hopper of the present invention; Figure 8 It is a schematic diagram of the end frame structure of the present invention.

[0032] The industrial crude iodine classification device provided in this embodiment includes a shell 1, and a feed hopper 2 and a discharge hopper 6 are arranged at different heights at both ends of the shell 1. A screening conveyor belt 3 is fixed in the shell 1 and extends from the lower end of the feed hopper 2 to the upper end of the discharge hopper 6. The screening conveyor belt 3 is composed of an outer material belt 32 with a grid shape on the outside and an inner material belt 33 with a screen 333 on the inside, which is nested to screen fine crude iodine particles. A collecting hopper 37 is fixed on the inner side of the inner material belt 33 to collect the fine crude iodine particles and connect it to a separation hopper 7 on one side of the shell 1 for discharge.

[0033] Among them, the screening conveyor belt 3 includes side plates 31, a driving shaft 34, an end frame 36, an outer material belt 32 and an inner material belt 33. A group of driving shafts 34 and an end frame 36 are arranged between the side plates 31. The two ends of the outer material belt 32 and the inner material belt 33 are respectively connected to a driving shaft 34 and the end frame 36. The driving shaft 34 is connected to the driving motor 4 in the side wall guard plate 5 of the outer shell 1 for driving.

[0034] Specifically, the driving shafts 34 are connected via a set of transmission wheels 35 for differential transmission. Through the speed difference between the outer material belt 32 and the inner material belt 33, the relative movement of the inner material belt 33 and the outer material belt 32 drives the iodine blocks, thereby improving the screening effect.

[0035] Specifically, the end frame 36 is slidably arranged at one end of the side plate 31, and is rotated by a bolt structure to adjust the position along the conveying direction of the screening conveyor belt 3. The end frame 36 is composed of two groups of rollers arranged in an arc shape, and the arrangement curve of the inner roller is offset inwardly compared with the center of the arrangement curve of the outer roller, and the radius is larger;

[0036] The offset and large diameter setting of the inner roller arrangement curve of the end frame 36 make the upper and lower end positions and the end positions of the outer roller arrangement curve closer in horizontal height, reducing the gap and improving the fit between the outer material belt 32 and the inner material belt 33. The sliding setting of the end frame 36 can adjust the position of the end frame 36 to avoid the outer material belt 32 and the inner material belt 33 from not fitting after the inner diameter of the screening drive belt 3 increases due to wear after long-term operation. By adjusting the position of the end frame 36, the outer material belt 32 and the inner material belt 33 of the screening drive belt 3 are re-tightened and fit together.

[0037] Specifically, the outer material belt 32 is composed of a side skirt 321 and grid bars 322. The two sides are symmetrically arranged side skirts 321 with stepped surfaces in the shape of a right trapezoid. The side skirts 321 are connected by grid bars 322 with a triangular cross-section. The two side skirts 321 and the grid bars 322 are used to limit the area of the iodine block, and by restricting the movement range of the iodine block, the interaction force between the lower inner material belt 33 and the iodine block is increased.

[0038] Specifically, the inner material belt 33 includes a belt body 331. A strip-shaped guide groove 332 is recessed on the surface of the belt body 331, and a filter screen 333 is arranged in the guide groove 332. Through the recessed guide groove 332 on the surface, the frictional force between the inner material belt 33 and the iodine block is increased, improving the driving effect on the iodine block. The filter screen 333 filters out fine iodine particles during the movement of the iodine block.

[0039] Furthermore, the guide groove 332 is in the shape of a triangular arrow. Through the triangular structure and the upper outer material belt's limitation of the coarse iodine, the coarse iodine block is driven to move along the triangular side, driving the iodine block on the conveyor belt to move laterally, facilitating the separation of fine particles.

[0040] Even further, the arrow directions of the guide groove 332 are set in segments, and the arrow directions between adjacent segments are set in opposite directions. By setting the guide arrow directions in opposite directions, the coarse iodine is guided to move in the opposite direction, preventing the coarse iodine from accumulating at a single point.

[0041] Further, convex particles 323 are provided at intervals on the inner side of the grid bars 322 of the outer material belt 32. Due to the provision of the convex particles 323, when the inner material belt 33 moves at a differential speed relative to the outer material belt 32, it will contact the convex particles 323, driving the inner material belt 33 to vibrate slightly up and down, improving the screening effect of the iodine block between the grid bars 322 of the outer material belt 33.

[0042] When implementing the technical solution recorded in this embodiment, the coarse iodine is added through the feed hopper 2 on one side of the outer shell 1 and falls between the grid bars 322 of the outer material belt 32 of the screening conveyor belt 3, and is transported along the screening conveyor belt 3 towards the end. At the same time, the inner material belt 33 that supports the iodine block at the bottom of the screening conveyor belt 3 moves relative to the outer outer material belt 32 under the differential drive of the transmission pulley group 35. Through the triangular guide groove 332 recessed on the surface and the upper outer material belt 32's limitation of the coarse iodine, the coarse iodine block is driven to move along the triangular side, that is, driving the iodine block on the conveyor belt to move laterally back and forth. The filter screen 333 filters out fine iodine particles during the movement of the iodine block. The fine iodine particles fall into the aggregate hopper 37 and are collected and separated and exported from the separation hopper 7 on one side of the outer shell 1. The complete iodine block moves along the screening conveyor belt 3 to the end and falls into the discharge hopper 6 and is exported.

Claims

1. Industrial crude iodine classification device, Characterized in that, Comprising: A housing (1), with a feed hopper (2) and a discharge hopper (6) arranged at different heights at both ends of the housing (1) for the feeding and discharging of crude iodine; A screening conveyor belt (3) is fixed inside the housing (1) and extends from the lower end of the feed hopper (2) to the upper end of the discharge hopper (6) for the transportation of the overall crude iodine. The screening conveyor belt (3) is composed of an outer material belt (32) with a grid-like outer side and an inner material belt (33) with a sieve mesh (333) inside, for screening fine crude iodine particles; A separation hopper (7), an aggregate hopper (37) is fixed inside the inner material belt (33) to collect fine crude iodine particles and is connected to the separation hopper (7) on one side of the housing (1) for discharging; The screening conveyor belt (3) includes side plates (31), drive shafts (34), end frames (36), an outer material belt (32) and an inner material belt (33). A set of drive shafts (34) and an end frame (36) are arranged between the side plates (31). The two ends of the outer material belt (32) and the inner material belt (33) are respectively connected to a drive shaft (34) and an end frame (36), and the drive shaft (34) is in transmission connection with a drive motor (4) inside the side wall guard plate (5) of the housing (1) for driving; The end frame (36) is composed of two sets of rollers arranged in an arc shape. The arrangement curve of the inner rollers is offset inward from the center of the arrangement curve of the outer rollers, and the radius is larger; The inner material belt (33) includes a belt body (331), and strip-shaped guide grooves (332) are recessed on the surface of the belt body (331), and a sieve mesh (333) is arranged in the guide grooves (332); The guide grooves (332) are in the shape of triangular arrows; The arrow directions of the guide grooves (332) are set in segments, and the arrow directions between adjacent segments are set in opposite directions; Convex particles (323) are arranged at intervals on the inner side of the grid bars (322) of the outer material belt (32).

2. The industrial crude iodine classification device according to claim 1, Characterized in that: The drive shafts (34) are in transmission connection through a set of transmission pulley groups (35) for differential transmission.

3. The industrial crude iodine classification device according to claim 1, Characterized in that: The end frame (36) is slidably arranged at one end of the side plate (31), and the position is adjusted along the conveying direction of the screening conveyor belt (3) by rotating through a bolt structure.

4. The industrial crude iodine classification device according to claim 1, Characterized in that: The outer material belt (32) is composed of side skirts (321) and grid bars (322). The two sides are symmetrically arranged side skirts (321) with stepped surfaces in the shape of right trapezoids, and the side skirts (321) are connected by grid bars (322) with a triangular cross-section.

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