A chemical crystallization particle drying equipment

Abstract

The present invention relates to the technical field of particle crystallization, and discloses a chemical crystallization particle drying device, which includes an annular housing. An upper clamping member and a lower clamping member are respectively clamped on the upper and lower parts of one section of the housing. An annular screening assembly and a material return assembly are arranged inside the housing. A number of drive motors are arranged on the inner and outer rings between the screening assembly and the material return assembly. An elliptical gear is arranged on the output end of the drive motor. While driving the upper and lower screening assemblies and the material return assembly to rotate in opposite directions, the elliptical gear vibrates up and down. The drying speed of small-sized crystals is higher. During the entire traveling process, small-sized crystals are distinguished from large crystals through vibration. The large crystals complete the entire drying path. During the screening process of small crystals, they are affected by air drying, can be quickly dried, and quickly separated from the drying device to increase the drying efficiency of the device. The large crystals are loosened during vibration and the agglomerated state is released.

Description

Technical Field

[0001] The present invention relates to the technical field of particle crystallization, and particularly to a drying device for chemical crystallization particles. Background Art

[0002] Crystallization refers to the process in which a solute in a hot saturated solution precipitates in the form of crystals due to a decrease in solubility caused by cooling the solution, resulting in supersaturation. During this process, the surface of the precipitated crystals remains wet. When processing this part of the crystals, appropriate drying techniques are required to quickly dry the wet crystal particles.

[0003] Chinese Patent CN118168310B discloses a drying system for crystalline chemical particles, including a hot blast stove. A support is fixedly connected to the outer surface of the upper end of the hot blast stove, and a feeding pipe is fixedly connected to the outer surface of the upper end of the support. An inlet assembly is arranged inside the feeding pipe, and the inlet assembly is used to push the wet chemical particles to feed smoothly. A circulation assembly is arranged above the feeding pipe. By setting the circulation assembly, the hot air flow can synchronously convey the chemical particles during the flow process. The chemical particles can be dried by using the heat of the hot air flow through sufficient contact with the hot air flow during the conveying process. In addition, the chemical particles will collide with the inner wall of the conveying pipeline during operation, so as to loosen and break the agglomerated chemical particles. The drying efficiency of the chemical particles can be effectively improved by increasing the contact area between the chemical particles and the hot air.

[0004] Among several other patents including the above-mentioned patent, when drying the crystals, the difference in the sizes of the crystal particles is not considered. The drying efficiency of the large-sized crystals is relatively low, while that of the small-sized crystals is high. However, the large-sized and small-sized crystals are not distinguished during the entire drying process, resulting in that the small-sized dried crystals will follow the large-sized crystals that have not been completely dried to complete the entire drying path during the drying process, thus limiting the drying efficiency. Therefore, a drying device for chemical crystallization particles is proposed. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a drying device for chemical crystallization particles, which has advantages and solves problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a chemical crystal particle drying equipment, comprising an annular shell, one section of which is respectively clamped with an upper clamp and a lower clamp, an annular screening assembly and a return assembly are arranged inside the shell, and the inner and outer rings between the screening assembly and the return assembly are both provided with a plurality of driving motors, an elliptical gear is arranged on the output end of the driving motor, the elliptical gear drives the upper and lower screening assemblies and the return assembly to rotate in opposite directions while vibrating up and down, the upper clamp feeds the screening assembly, and the lower clamp returns the material from the return assembly, a plurality of fixing assemblies are respectively arranged on the inner and outer sides of the shell and are connected with the screening assembly and the return assembly, and the shell An air outlet is provided at the bottom end of the interior to air-dry the materials on the screening component and the return material component. The screening component includes two circular first connecting parts, a screen is provided between the two first connecting parts, the edge of the screen is a first guide ring, and the first guide ring is embedded in the first connecting part and rotatably connected thereto, and the first guide ring is provided with a tooth pattern meshing with an elliptical gear. The return material component includes two circular second connecting parts, a recovery net is provided between the two second connecting parts, the edge of the recovery net is a second guide ring, and the second guide ring is embedded in the first connecting part and rotatably connected thereto, and the second guide ring is provided with a tooth pattern meshing with an elliptical gear.

[0007] Preferably, the first connecting member is provided with an extension plate extending upward and fitting above the inner wall of the guide ring, the second connecting member is provided with another extension plate extending downward and fitting below the inner wall of the guide ring, and the first connecting member and the second connecting member are respectively provided with a first partition plate and a second partition plate extending toward each other, the first partition plate and the second partition plate are in a fitting state, and when the screening assembly and the return material assembly are in the maximum separation state, the second partition plate and the first partition plate are still in a fitting state.

[0008] Preferably, the shell includes a guide ring and side cavities arranged on the inner and outer rings of the guide ring, and the fixing components are respectively provided with several side cavities of the inner and outer rings, and the fixing components include a pull strap and two fixing buckles arranged on each pull strap, the first connecting member is fixedly connected to the fixing buckle at the top, and the second connecting member is fixedly connected to the fixing buckle at the bottom.

[0009] Preferably, the drive motor is provided with several in the side cavities of the inner and outer rings, and when the elliptical gear is in a horizontal state, the pull belt pulls the first guide ring and the second guide ring on the upper and lower screening assemblies and the return material assembly to fit tightly with the elliptical gear.

[0010] Preferably, the upper clamping member comprises an upper engaging block, on which a feeding pipe and a discharge port are respectively provided, and the discharge port is located at one side of the upper engaging block and docked with the first connecting member.

[0011] Preferably, a sipping plate is provided on the other side of the upper fitting block. A plurality of pressing wheels are provided at the bottom of the sipping plate. A plurality of inserting rods are provided on the sipping plate and inserted into the upper fitting block. At the same time, a spring is provided outside the inserting rods, and the pressing wheels are in contact with the sieve mesh.

[0012] Preferably, the lower clamping member includes a lower fitting block. Two ejector rods and two limiting rods are provided on the lower fitting block. The ejector rods and the limiting rods are rotatably connected to the recovery mesh. Magnetic sheets are provided at the edge of the recovery mesh and magnetically connected to the second guiding ring.

[0013] Preferably, a scraping plate is provided inside the lower fitting block and is in contact with the recovery mesh that detaches from the second guiding ring.

[0014] Compared with the prior art, the present invention provides a chemical crystallization particle drying device, which has the following beneficial effects:

[0015] 1. The drying speed of small-sized crystals is higher. During the entire traveling process, small-sized crystals are distinguished from large crystals through vibration. Large crystals complete the entire drying path. During the screening process of small crystals, they are subjected to air drying and can be quickly dried and quickly detached from the drying device, so as to increase the drying efficiency of the device.

[0016] 2. During the vibration process, large crystals are loosened, and while the agglomerated state is released, they are thrown upward, increasing the air drying efficiency. At the same time, the small particles after the agglomeration state is released fall from the sieve mesh to the lower part. Larger agglomerated crystals take longer to vibrate and fall into the lower recovery mesh later, and will have a longer traveling path on the lower recovery mesh to avoid the undried part in the agglomeration and obtain a good drying effect.

[0017] 3. When large single crystals travel to the final path of the sieve mesh, they are crushed by the upper pressing wheels and fall into the lower recovery mesh to obtain particle crystals of a standard size, avoiding the situation that large particle crystals are not convenient for later processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall external structure schematic diagram of a chemical crystallization particle drying device of the present invention;

[0019] Figure 2 is a partial internal structure schematic diagram of a chemical crystallization particle drying device of the present invention;

[0020] Figure 3 is a schematic diagram of the housing, screening assembly and material return structure of a chemical crystallization particle drying device of the present invention;

[0021] Figure 4 is a schematic diagram of the working state structure of the drive motor of a chemical crystallization particle drying device of the present invention;

[0022] Figure 5 Schematic diagram of the connection structure of the screening component, the material return component and the upper and lower clamping parts of a chemical crystallization particle drying device of the present invention;

[0023] Figure 6 Schematic diagram of the docking structure between the discharge port and the screening component of a chemical crystallization particle drying device of the present invention;

[0024] Figure 7 Schematic diagram of the structure of the clamping plate and the pressing wheel of a chemical crystallization particle drying device of the present invention;

[0025] Figure 8 Schematic diagram of the connection structure between the recovery net and the lower fitting block of a chemical crystallization particle drying device of the present invention.

[0026] In the figure: 1. Housing; 11. Guide ring; 12. Side cavity;

[0027] 2. Upper clamping part; 21. Upper fitting block; 22. Feeding pipe; 23. Clamping plate; 24. Discharge port; 25. Pressing wheel;

[0028] 3. Lower clamping part; 31. Lower fitting block; 32. Jacking rod; 33. Limiting rod; 34. Scraper;

[0029] 4. Fixing component; 41. Pulling belt; 42. Fixing buckle;

[0030] 5. Screening component; 51. First connecting piece; 52. Screen; 53. First guide ring; 54. First partition;

[0031] 6. Material return component; 61. Second connecting piece; 62. Recovery net; 63. Second guide ring; 64. Second partition;

[0032] 7. Driving motor; 71. Elliptical gear. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0034] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a chemical crystallization particle drying device. Embodiment 1

[0035] As Figure 1-8As shown in the figure, a chemical crystallization particle drying device includes an annular housing 1, an upper clamping member 2 and a lower clamping member 3 clamped onto the housing 1. Inside the housing 1, a screening component 5 and a material return component 6 with opposite rotation directions are provided. Among them, the upper clamping member 2 supplies materials to the screening component 5, and the lower clamping member 3 returns materials from the material return component 6. A driving motor 7 is arranged between the screening component 5 and the material return component 6 to drive them to rotate. The output end of the driving motor 7 is an elliptical gear 71. While driving the screening component 5 and the material return component 6 to rotate in opposite directions, it causes the two to fluctuate up and down. In addition, a number of fixing components 4 are arranged on the inner and outer sides of the housing 1 to connect with the screening component 5 and the material return component 6. An air outlet is arranged at the bottom end inside the housing 1 to air-dry the materials on the screening component 5 and the material return component 6.

[0036] Screen mesh structures are arranged on both the screening component 5 and the material return component 6. Among them, the mesh number of the screen on the screening component 5 is lower, and the mesh number of the screen on the material return component 6 is higher. The air outlet at the bottom of the housing 1 blows upward, blows towards the screening component 5 after passing through the material return component 6, and air-dries the materials on both of them. During the air-drying process, along with the vibration and rotation of the screening component 5 and the material return component 6, the materials are thrown upward, increasing the air-drying efficiency while loosening and crushing some of the agglomerated crystals, and at the same time screening the materials on the screening component 5. Among them, the large-particle crystalline materials remain on the screening component 5, and the small-particle crystalline materials fall onto the material return component 6, and the qualified small-particle crystalline materials are recovered by the lower clamping member 3 after drying. Embodiment 2

[0037] Further, refer to Figures 1 to 4As shown, the housing 1 includes a main body guide ring 11 and side cavities 12 provided on the inner and outer rings of the guide ring 11. The screening assembly 5 includes two circular first connecting members 51. A screen 52 is provided between the two first connecting members 51. The edge portion of the screen 52 is a first guide ring 53. The first guide ring 53 is embedded in the first connecting member 51 and is rotatably connected to the first connecting member 51. Tooth patterns meshing with the elliptical gear 71 are provided on the first guide ring 53. An extension plate extending upward and fitting against the upper inner wall of the guide ring 11, and a first partition 54 extending downward are provided on the first connecting member 51. The return material assembly 6 is similar in structure to the screening assembly 5. It includes two circular second connecting members 61. A recovery net 62 is provided between the two second connecting members 61. The edge portion of the recovery net 62 is a second guide ring 63. Tooth patterns meshing with the elliptical gear 71 are provided on the second guide ring 63. The second guide ring 63 is embedded in the second connecting member 61 and is rotatably connected to the second connecting member 61. Another extension plate extending downward and fitting against the lower inner wall of the guide ring 11, and a second partition 64 extending upward are provided on the second connecting member 61. The first partition 54 and the second partition 64 are in a fitting state. And when the screening assembly 5 and the return material assembly 6 are in the maximum separation state, the second partition 64 and the first partition 54 are still in a fitting state;

[0038] A number of fixing components 4 are provided on the side cavities 12 of the inner and outer rings respectively. The fixing component 4 includes a strap 41 and two fixing buckles 42 provided on each strap 41. The two fixing buckles 42 are distributed up and down on the strap 41. The upper fixing buckle 42 is used for fixedly connecting the first connecting member 51, and the lower fixing buckle 42 is used for fixedly connecting the second connecting member 61.

[0039] A number of drive motors 7 and elliptical gears 71 are provided in both the inner and outer rings of the side cavity 12. In the initial state, the elliptical gear 71 is in a horizontal state. Due to the action of the strap 41, the upper and lower first guide rings 53 and second guide rings 63 are pulled to be closely fitted with the elliptical gear 71. Along with the rotation of the elliptical gear 71, while driving the upper and lower first guide rings 53 and second guide rings 63 to rotate in opposite directions, it will periodically push the first guide ring 53 and the second guide ring 63 upward and downward respectively, pushing the two in opposite directions to achieve the effect of driving the first guide ring 53 and the second guide ring 63 to vibrate. In further rotation, the elliptical gear 71 returns to the horizontal state, and the strap 41 pulls the upper and lower first guide rings 53 and second guide rings 63 to continue to maintain a stable docking state with the elliptical gear 71.

[0040] When the upper clamping member 2 feeds material onto the screen 52, the crystal particles fall on the screen 52. As the elliptical gear 71 rotates, the material moves on the screen 52. As the screen 52 vibrates, the particles are thrown up and fall. The particles are dried by the fan inside the shell 1. Since the particles have different crystal sizes during the crystallization process, the larger crystals have more residual liquid on the surface and cannot fall quickly from the grid on the screen 52, so that the larger crystal particles can be treated longer on the screen 52 to achieve a better drying effect. The smaller particles will pass through the screen 52 faster than the larger particles and fall into the recovery net 62 below. Due to their smaller size, there is less residual liquid on the surface, and the air-drying effect is better. After being dried faster, they fall directly into the recovery net 62 below and are recycled.

[0041] Note that the recovery net 62 is also a mesh structure, but its permeable net is only for the passage of dry airflow, and small particle crystals falling on its surface cannot pass through, so that the small particle crystals, after passing through the screen 52, can be moved by the recovery net 62 and still be affected by the air drying effect. Embodiment 3

[0042] For further information, see Figures 5 to 8 As shown, the upper clamping member 2 includes an upper main body engaging block 21, and the lower clamping member 3 includes a lower main body engaging block 31. The upper engaging block 21 and the lower engaging block 31 are similar in structure and are respectively embedded in the upper and lower sides of one section of the shell 1. The upper engaging block 21 is provided with a feeding pipe 22 and a discharge port 24. The discharge port 24 is located on one side of the upper engaging block 21 and docked with the first connecting member 51 to guide the crystal material transported in the feeding pipe 22 onto the screen 52. A sipping plate 23 is provided on the other side of the upper engaging block 21. A plurality of pressing wheels 25 are provided at the bottom of the sipping plate 23. A plurality of insertion rods are provided on the sipping plate 23 to be inserted into the upper engaging block 21. At the same time, a spring is provided outside the insertion rod to make the sipping plate 2 The pressing wheel 25 at the bottom of the sipping plate 23 is elastically connected to the upper engaging block 21, and rotates with the screen 52 during the rotation of the screen 52. Since the screen 52 rotates from the sipping plate 23 toward the discharge port 24, when the material on the screen 52 rotates to contact with the pressing wheel 25, the small crystal particles on the screen 52 have fallen from the screen 52 to the bottom, and the remaining particles are large crystal particles that cannot pass through the screen 52. At this time, the particles in contact with the pressing wheel 25 are large crystal particles. The pressing wheel 25 is subjected to the pressure of the upper spring to keep in contact with the surface of the screen 52. At the same time, when the screen 52 fluctuates up and down, the pressing wheel 25 is still in a docking state with the screen 52. Through the rotation of the screen 52, a plurality of pressing wheels 25 are driven to rotate together to crush the large crystal particles and make them fall onto the recovery net 62 below.

[0043] See also Figure 5 and Figure 8As shown, symmetric ejector rods 32 and limit rods 33 are provided on the lower fitting block 31. The ejector rods 32 and the limit rods 33 are both rotatably connected to the recovery net 62. A magnetic sheet is provided at the edge part of the recovery net 62 and is magnetically connected to the second guiding ring 63. When the recovery net 62 rotates with the second guiding ring 63 and contacts the lower clamping member 3, the limit rod 33 and the ejector rod 32 on one side guide the recovery net 62 to disengage from the second guiding ring 63. At the same time, since there is no blower action here, the small particle crystals are stably on the surface of the recovery net 62. Another scraper 34 is provided in the lower fitting block 31 and fits on the recovery net 62 that has disengaged from the second guiding ring 63, guiding and scraping the small particle crystals on the surface of the recovery net 62 into the lower fitting block 31 and collecting them. During the further rotation of the recovery net 62, the limit rod 33 and the ejector rod 32 on the other side guide the recovery net 62 to rise to a state where it fits with the second guiding ring 63 again and rotates with it to work again.

[0044] Since the second guiding ring 63 and the first guiding ring 53 rotate in opposite directions, the granular crystals crushed by the pressing wheel 25 and falling onto the lower recovery net 62 need to travel a whole journey on the recovery net 62 before being collected. During the crushing of the large granular crystals, some powdery granular crystals will appear. The powdery granular crystals are blown by the drying air flow and separated from the small particle crystals. The crushed large granular crystals will have a longer secondary drying journey to stably separate the powdery granular crystals.

[0045] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical crystallization particle drying device, comprising an annular housing (1), characterized in that: One section of the housing (1) is respectively clamped with an upper clamping member (2) and a lower clamping member (3) from above and below. An annular screening assembly (5) and a material returning assembly (6) are arranged inside the housing (1). A number of drive motors (7) are arranged on both the inner and outer rings between the screening assembly (5) and the material returning assembly (6). An elliptical gear (71) is arranged on the output end of the drive motor (7). The elliptical gear (71) drives the screening assembly (5) and the material returning assembly (6) arranged up and down to rotate in opposite directions and vibrate up and down at the same time. The upper clamping member (2) feeds materials to the screening assembly (5), and the lower clamping member (3) returns materials from the material returning assembly (6). A number of fixing assemblies (4) are respectively arranged on the inner and outer sides of the housing (1) and are connected to the screening assembly (5) and the material returning assembly (6). An air outlet is arranged at the bottom end inside the housing (1) to air-dry the materials on the screening assembly (5) and the material returning assembly (6). The screening assembly (5) includes two circular first connecting members (51). A screen (52) is arranged between the two first connecting members (51). The edge of the screen (52) is a first guiding ring (53), and the first guiding ring (53) is embedded in the first connecting member (51) and is rotatably connected thereto. Tooth patterns engaged with the elliptical gear (71) are arranged on the first guiding ring (53). The material returning assembly (6) includes two circular second connecting members (61). A recovery net (62) is arranged between the two second connecting members (61). The edge of the recovery net (62) is a second guiding ring (63), and the second guiding ring (63) is embedded in the first connecting member (51) and is rotatably connected thereto. Tooth patterns engaged with the elliptical gear (71) are arranged on the second guiding ring (63).

2. The chemical crystallization particle drying equipment according to claim 1, characterized in that: An extension plate extending upward and fitting to the upper inner wall of the guiding ring (11) is arranged on the first connecting member (51). Another extension plate extending downward and fitting to the lower inner wall of the guiding ring (11) is arranged on the second connecting member (61). First partitions (54) and second partitions (64) extending toward each other are respectively arranged on the first connecting member (51) and the second connecting member (61). The first partition (54) and the second partition (64) are in a fitting state, and when the screening assembly (5) and the material returning assembly (6) are in the maximum separation state, the second partition (64) and the first partition (54) are still in a fitting state.

3. The chemical crystallization particle drying equipment according to claim 1, wherein: The housing (1) includes a guiding ring (11) and side cavities (12) arranged on the inner and outer rings of the guiding ring (11). A number of fixing assemblies (4) are respectively arranged on the side cavities (12) of the inner and outer rings. The fixing assembly (4) includes a pulling belt (41) and two fixing buckles (42) arranged on each pulling belt (41). The first connecting member (51) is fixedly connected to the upper fixing buckle (42), and the second connecting member (61) is fixedly connected to the lower fixing buckle (42).

4. A chemical crystallization particle drying device according to claim 1, characterized in that: The drive motor (7) is provided with a plurality of side cavities (12) of the inner and outer rings, respectively. When the elliptical gear (71) is in a horizontal state, the pull belt (41) pulls the first guide ring (53) and the second guide ring (63) on the upper and lower screening assemblies (5) and the return material assembly (6) to fit tightly with the elliptical gear (71).

5. A chemical crystallization particle drying device according to claim 1, characterized in that: The upper clamping member (2) comprises an upper engaging block (21), on which a feeding pipe (22) and a discharge port (24) are respectively provided, and the discharge port (24) is located on one side of the upper engaging block (21) and is connected to the first connecting member (51).

6. The chemical crystallization particle drying equipment according to claim 5, characterized in that: A sipping plate (23) is provided on the other side of the upper engaging block (21), and a plurality of pressing wheels (25) are provided at the bottom of the sipping plate (23). A plurality of insertion rods are provided on the sipping plate (23) and inserted into the upper engaging block (21), and springs are provided outside the insertion rods. The pressing wheels (25) are in contact with the screen (52).

7. A chemical crystallization particle drying device according to claim 1, characterized in that: The lower clamping member (3) comprises a lower engaging block (31), on which are disposed two push rods (32) and two limit rods (33), the push rods (32) and the limit rods (33) being rotatably connected to the recovery net (62), and a magnetic sheet is disposed on the edge of the recovery net (62) and is magnetically connected to the second guide ring (63).

8. A chemical crystallization particle drying device according to claim 7, characterized in that: The lower engaging block (31) is provided with a scraper (34) which is attached to the recovery net (62) that is separated from the second guide ring (63).

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