Lithium chloride granulation sieve plate and granulator

Abstract

The utility model relates to a granulation sieve plate of lithium chloride and a granulator, belongs to the technical field of lithium chloride production equipment, and solves the technical problem that the wind resistance of the granulation sieve plate of the lithium chloride granulator in the prior art is larger. The granulation sieve plate comprises a plate body, the plate body is provided with a via hole used for allowing a mounting bolt to penetrate through and sieve holes used for ventilation, openings in the two ends of each sieve hole are an air inlet and an air outlet respectively, and each air inlet is located below the corresponding air outlet; the caliber of the air inlet is larger than that of the air outlet. The granulator comprises a main body provided with a mounting frame; and the granulation sieve plate is mounted on the mounting frame through the mounting bolts. Through the structure, the granulation sieve plate is lower in wind resistance and better in ventilation, and the energy consumption of the granulator using the granulation sieve plate is lower under the condition of the same productivity.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium chloride production equipment, in particular to a lithium chloride granulation screen plate and a granulator. Background Art

[0002] Lithium chloride can be used as an electrolyte for all-solid-state lithium batteries. When used in combination with materials such as lithium zirconium oxychloride, it can significantly reduce the cost of the electrolyte while maintaining performance similar to that of sulfide and chloride solid electrolytes. At present, companies use granulators to produce lithium chloride particles. Specifically, the granulator has a granulation screen plate. The material (i.e., raw material) is placed on the screen plate. A high-speed airflow is blown in from under the screen plate. With the help of the high-speed airflow, the material is churned on the screen plate. The granulator also has a spray component. The spray component sprays the mixed solution onto the churning material. The solute in the mixed solution adheres to the surface of the material, thereby forming lithium chloride particles. After the solvent evaporates, it is discharged through the exhaust mechanism of the granulator. The formed lithium chloride particles are then discharged through the discharge mechanism.

[0003] The ventilation of the sieve plate is a key parameter of the granulator, directly affecting production capacity and the energy consumption of the granulator during operation. In existing technology, the sieve holes on the lithium chloride granulation sieve plate are generally straight through holes of equal diameter. Although this provides ventilation, it also has high wind resistance, resulting in high energy consumption of the granulator.

[0004] Based on this, a sieve plate that can reduce the wind resistance of the sieve plate to reduce the energy consumption of the granulator is in urgent need of appearance. Utility Model Content

[0005] The utility model provides a lithium chloride granulation sieve plate, which is used to solve the technical problem of large wind resistance of the granulation sieve plate of the lithium chloride granulator in the prior art.

[0006] The utility model is realized by the following technical solution: a lithium chloride granulation screen plate, comprising:

[0007] The plate body is provided with a through hole for passing the mounting bolts and a sieve hole for ventilation, the two ends of the sieve hole are respectively an air inlet and an air outlet, and the air inlet is located below the air outlet;

[0008] The diameter of the air inlet is larger than the diameter of the air outlet.

[0009] Furthermore, in order to better implement the present invention, the sieve holes include:

[0010] A first straight hole section is provided on the top surface of the plate body, and a top opening of the first straight hole section constitutes the air outlet;

[0011] a second straight hole section, provided on the bottom surface of the plate body, the second straight hole section being coaxial with the first straight hole section, and the bottom end opening of the second straight hole section constituting the air inlet;

[0012] The second straight hole section has a larger hole diameter than the first straight hole section.

[0013] Furthermore, in order to better implement the present invention, the ratio of the aperture of the second straight hole section to the aperture of the first straight hole section is 1.5-2.

[0014] Furthermore, in order to better implement the present invention, the ratio of the aperture of the second straight hole section to the aperture of the first straight hole section is 1.6.

[0015] Furthermore, in order to better implement the present invention, the ratio of the depth of the second straight hole section to the depth of the first straight hole section is 0.4-0.6.

[0016] Furthermore, in order to better implement the present invention, the ratio of the depth of the second straight hole section to the depth of the first straight hole section is 0.5.

[0017] Furthermore, in order to better implement the present invention, the sieve hole further comprises:

[0018] The conical hole section has a conical top end and a conical bottom end. The conical hole section is arranged between the first straight hole section and the second straight hole section, and the conical bottom end of the conical hole section is connected to the second straight hole, and the conical top end of the conical hole section is connected to the first straight hole.

[0019] Furthermore, in order to better realize the present invention, the plate body is a structural member made of pure zirconium material.

[0020] The utility model also provides a lithium chloride granulator, which comprises:

[0021] The main body is provided with a mounting frame;

[0022] The granulation screen plate is mounted on the mounting frame via the mounting bolts.

[0023] Furthermore, in order to better implement the present invention, the vias include a plurality of main mounting holes and a plurality of auxiliary mounting holes, wherein the plurality of main mounting holes are opened near the edge of the plate body, and the plurality of auxiliary mounting holes are opened in the middle of the plate body, and the plate body is equally divided in the length direction by the plurality of auxiliary mounting holes;

[0024] The mounting frame is provided with a main screw hole corresponding to the main mounting hole, and a bracket is provided in the mounting frame, and the bracket is provided with a secondary screw hole corresponding to the secondary mounting hole;

[0025] The mounting bolts include a main bolt and a secondary bolt. The main bolt passes through the main mounting hole and is screwed into the main screw hole. The secondary bolt passes through the secondary mounting hole and is screwed into the secondary screw hole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The granulation screen plate of lithium chloride provided by the present invention includes a plate body, and a through hole for passing the mounting bolt is provided on the plate body so that the granulation screen plate can be installed on the granulator. The plate body is also provided with a sieve hole for ventilation, and the openings at both ends of the sieve hole are respectively an air inlet and an air outlet, and the air inlet is located below the air outlet. During granulation, wind blows from the bottom of the granulation screen plate to the sieve plate, enters the sieve hole from the air inlet, and then blows out of the sieve hole from the air outlet. The material is placed on the sieve plate, and the wind passing through the sieve hole blows the material up, so that the material tumbles above the granulation screen plate. The aperture of the air inlet of the above-mentioned sieve hole is larger than the aperture of the air outlet. In this way, the air inlet on the granulation screen plate is larger than the air outlet. Therefore, the wind resistance of the sieve hole of the granulation screen plate is smaller, and the wind can pass through the sieve hole more smoothly, which is conducive to increasing the ventilation volume and improving the ventilation performance.

[0028] (2) The granulator provided by the present invention includes a main body and the above-mentioned granulation screen plate. The main body is provided with a mounting frame. The above-mentioned granulation screen plate is mounted on the mounting frame by the above-mentioned mounting bolts. Since the wind resistance of the sieve holes of the granulation screen plate is lower, the ventilation of the entire granulation screen plate is better. Therefore, the energy consumption of the granulator is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 It is a structural schematic diagram of the granulation screen plate provided in an embodiment of the utility model;

[0031] Figure 2 It is a structural schematic diagram of the sieve hole in the embodiment of the present utility model;

[0032] Figure 3 This is a schematic diagram of the installation structure of the granulation screen plate provided in an embodiment of the present utility model on the installation frame;

[0033] Figure 4 yes Figure 3 Exploded view of the structure shown.

[0034] In the picture:

[0035] 100-plate body, 110-main mounting hole, 120-auxiliary mounting hole, 130-sieve hole, 131-first straight hole section, 132-second straight hole section, 133-tapered hole section, 200-mounting frame, 210-main screw hole, 300-bracket, 310-auxiliary screw hole, 400-main bolt, 500-auxiliary bolt. DETAILED DESCRIPTION

[0036] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0037] Example 1:

[0038] The granulation sieve plate of lithium chloride provided by the utility model is as follows Figure 1 and Figure 2 As shown, it includes a plate body 100, which is provided with a through hole for passing the mounting bolts so that the granulation screen plate can be installed on the granulator. The sieve plate after installation is roughly horizontally arranged, with an air cavity or air duct below the sieve plate so that wind can be blown from below to the above-mentioned sieve plate, and a granulation cavity is provided above the sieve plate, and the spray component of the granulator sprays the mixed liquid into the above-mentioned granulation cavity. Optionally, the plate body 100 in this embodiment is a whole plate structure made of pure zirconium material. Of course, zirconium plate, as a prior art, has good corrosion resistance, high temperature resistance and wind erosion resistance, so that the service life of the granulation screen plate can be longer. Of course, the zirconium plate can also be a titanium alloy plate. When used on the granulator, one granulation screen plate can be installed, or multiple granulation screen plates can be installed, and multiple granulation screen plates are spliced ​​to form the screen plate assembly of the granulator.

[0039] The plate body 100 is also provided with a sieve hole 130 for ventilation. Of course, the plate body 100 may have a plurality of sieve holes 130, which are distributed in an array on the plate body 100. The sieve holes 130 extend through the upper and lower surfaces of the plate body 100. The openings at the two ends of the sieve hole 130 serve as an air inlet and an air outlet, respectively. The air inlet is located below the air outlet. During granulation, air blows from below the granulation sieve plate to the sieve plate, enters the sieve hole 130 from the air inlet, and then blows out of the sieve hole 130 from the air outlet. The material is placed on the sieve plate, and the air passing through the sieve hole 130 blows the material up, causing it to churn above the granulation sieve plate. The churned material comes into contact with the atomized mixed liquid, and the solute in the mixed liquid adheres to the surface of the material to form lithium chloride particles. The solvent in the mixed liquid evaporates and is discharged through the exhaust mechanism. Specifically, the sieve hole 130 is provided on the plate body 100 by a laser punch.

[0040] The air inlet aperture of the above-mentioned sieve hole 130 is larger than the air outlet aperture. In this way, the air inlet on the granulation sieve plate is larger than the air outlet. Therefore, the wind resistance of the sieve hole 130 of the granulation sieve plate is smaller, and the wind can pass through the sieve hole 130 more smoothly, which is conducive to increasing the ventilation volume and improving the ventilation performance.

[0041] Optionally, the sieve hole 130 in this embodiment is a stepped hole, comprising a first straight hole section 131 and a second straight hole section 132, wherein the first straight hole section 131 is disposed on the top surface of the plate body 100, with the top opening of the first straight hole section 131 constituting the air outlet, and the second straight hole section 132 is disposed on the bottom surface of the plate body 100, and the second straight hole section 132 is coaxially disposed with the first straight hole section 131, with the bottom opening of the second straight hole section 132 constituting the air inlet, while the bottom opening of the first straight hole section 131 is connected to the top opening of the second straight hole section 132. The aperture of the second straight hole section 132 is larger than that of the first straight hole section 131. As another optional embodiment of this embodiment, the sieve hole 130 in this embodiment is a tapered hole that is smaller at the top and larger at the bottom.

[0042] The wind first enters the second straight hole section 132 with a larger aperture from below, and then enters the first straight hole section 131 with a smaller aperture. The first straight hole section 131 with a smaller aperture allows the sieve plate to be used to place materials to prevent the materials from falling from the sieve hole 130, and the second straight hole section 132 with a larger aperture is used to reduce the wind resistance of the sieve hole 130.

[0043] The ratio of the aperture of the second straight hole section 132 to the aperture of the first straight hole section 131 is 1.5-2, that is, the aperture of the second straight hole section 132 is 1.5 to 2 times the aperture of the first straight hole section 131. Optionally, the aperture of the second straight hole section 132 is 1.5 times, 1.6 times, 1.7 times, 1.8 times, 1.9 times, or 2 times the aperture of the first straight hole section 131. Optimally, the aperture of the second straight hole section 132 is 1.5 times the aperture of the first straight hole section 131. For example, the aperture of the second straight hole section 132 is 3.2 mm, while the aperture of the first straight hole section 131 is 2 mm.

[0044] To ensure the structural strength of the granulation screen plate, in this embodiment, the ratio of the depth of the second straight hole section 132 to the depth of the first straight hole section 131 is 0.4-0.6, that is, the depth of the second straight hole section 132 is 0.4 to 0.6 times the depth of the first straight hole section 131. Optionally, the depth of the second straight hole section 132 is 0.4, 0.45, 0.5, 0.55, or 0.6 times the depth of the first straight hole section 131. Optimally, the depth of the second straight hole section 132 is 0.5 times the depth of the first straight hole section 131. For example, the depth of the first straight hole section 131 is 8 mm, and the depth of the second straight hole section 132 is 4 mm.

[0045] In order to further reduce the wind resistance of the sieve hole 130, an optional implementation of this embodiment is as follows: the above-mentioned sieve hole 130 also includes a conical hole section 133 having a conical top end and a conical bottom end, and the conical hole section 133 is arranged between the first straight hole section 131 and the second straight hole section 132, and the conical bottom end of the conical hole section 133 is connected to the second straight hole section 132, and the conical top end of the conical hole section 133 is connected to the first straight hole, so that the first straight hole section 131 and the second straight hole section 132 are transitioned through the conical hole section 133, so that the wind can enter the first straight hole section 131 more smoothly from the second straight hole section 132, thereby allowing the wind to pass through the sieve hole 130 more smoothly.

[0046] Example 2:

[0047] This embodiment provides a granulator for producing lithium chloride particles. Specifically, the granulator includes a main body and the granulation sieve plate provided in Example 1. The main body includes a blowing mechanism, a spray component, an exhaust mechanism, etc., which is roughly the same as the prior art. The difference lies in the sieve plate. The sieve plate used in the granulator provided in this embodiment is the granulation sieve plate provided in the embodiment.

[0048] Specifically, the main body of the granulator is further provided with a mounting frame 200, such as Figure 3 and Figure 4 As shown, the granulation screen plate is mounted on the mounting frame 200 through the mounting bolts, that is, the mounting bolts pass through the through holes on the granulation screen plate and are screwed to the mounting frame 200 .

[0049] Since the granulation screen plate has lower wind resistance and longer service life, when the granulator provided in this embodiment granulates, wind energy can pass through the granulation screen plate more smoothly. Therefore, under the same production capacity, the energy consumption of the granulator is lower.

[0050] Optionally, the through holes opened on the plate body 100 of the sieve plate include multiple main mounting holes 110 and multiple auxiliary mounting holes 120, multiple main mounting holes 110 are opened at positions close to the edge of the plate body 100, and multiple auxiliary mounting holes 120 are opened in the middle of the plate body 100, and the plate body 100 is equally divided by multiple auxiliary mounting holes 120 in the length direction, and the mounting frame 200 is provided with main screw holes 210 corresponding to the main mounting holes 110, and a bracket 300 is provided in the mounting frame 200, and the bracket 300 is provided with auxiliary screw holes 310 corresponding to the auxiliary mounting holes 120, and the above-mentioned mounting bolts include main bolts 400 and auxiliary bolts 500, and the main bolts 400 pass through the main mounting holes 110 and are screwed to the main screw holes 210, and the auxiliary bolts 500 pass through the auxiliary mounting holes 120 and are screwed to the auxiliary screw holes 310.

[0051] In this way, the position of the granulation screen plate near the edge is not only pressed against the mounting frame 200 of the granulator body by the main bolt 400, but the middle part of the granulation screen plate is also pressed against the bracket 300 in the mounting frame 200 by the auxiliary bolt 500, thereby making the granulation screen plate more firmly installed on the mounting frame 200 of the granulator body, reducing the probability of deformation of the granulation screen plate due to high temperature during use and extending its service life.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A granulation sieve plate for lithium chloride, characterized in that: include: The plate body (100) is provided with a through hole for passing a mounting bolt and a sieve hole (130) for ventilation, the two end openings of the sieve hole (130) are an air inlet and an air outlet respectively, and the air inlet is located below the air outlet; The diameter of the air inlet is larger than the diameter of the air outlet.

2. The granulation sieve plate of lithium chloride according to claim 1, characterized in that The sieve hole (130) comprises: A first straight hole section (131) is provided on the top surface of the plate body (100), and a top opening of the first straight hole section (131) constitutes the air outlet; A second straight hole section (132) is provided on the bottom surface of the plate body (100), the second straight hole section (132) is coaxial with the first straight hole section (131), and the bottom end opening of the second straight hole section (132) constitutes the air inlet; The hole diameter of the second straight hole section (132) is larger than that of the first straight hole section (131).

3. The granulation sieve plate of lithium chloride according to claim 2, characterized in that: The ratio of the aperture of the second straight hole section (132) to the aperture of the first straight hole section (131) is 1.5-2.

4. The granulation sieve plate for lithium chloride according to claim 3, characterized in that: The ratio of the aperture of the second straight hole section (132) to the aperture of the first straight hole section (131) is 1.

6.

5. The granulation sieve plate for lithium chloride according to claim 4, characterized in that: The ratio of the depth of the second straight hole section (132) to the depth of the first straight hole section (131) is 0.4-0.

6.

6. The granulation sieve plate for lithium chloride according to claim 5, characterized in that: The ratio of the depth of the second straight hole section (132) to the depth of the first straight hole section (131) is 0.

5.

7. The granulation sieve plate for lithium chloride according to claim 2, characterized in that: The sieve hole (130) further comprises: A conical hole section (133) having a conical top end and a conical bottom end, wherein the conical hole section (133) is arranged between the first straight hole section (131) and the second straight hole section (132), and the conical bottom end of the conical hole section (133) is connected to the second straight hole, and the conical top end of the conical hole section (133) is connected to the first straight hole.

8. The granulation sieve plate of lithium chloride according to any one of claims 1 to 7, characterized in that: The plate body (100) is a structural member made of a pure zirconium material.

9. A granulator, characterized in that: include: A main body, provided with a mounting frame (200); The granulation screen plate according to any one of claims 1 to 8, wherein the granulation screen plate is mounted on the mounting frame (200) by means of the mounting bolts.

10. The granulator according to claim 9, characterized in that: The through holes include a plurality of main mounting holes (110) and a plurality of auxiliary mounting holes (120); the plurality of main mounting holes (110) are opened at positions close to the edge of the plate body (100); the plurality of auxiliary mounting holes (120) are opened in the middle of the plate body (100); and the plate body (100) is equally divided in the length direction by the plurality of auxiliary mounting holes (120); The installation frame (200) is provided with a main screw hole (210) corresponding to the main installation hole (110); a bracket (300) is arranged in the installation frame (200); and the bracket (300) is provided with a secondary screw hole (310) corresponding to the secondary installation hole (120); The mounting bolts include a main bolt (400) and a secondary bolt (500). The main bolt (400) passes through the main mounting hole (110) and is screwed to the main screw hole (210). The secondary bolt (500) passes through the secondary mounting hole (120) and is screwed to the secondary screw hole (310).

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