CN214681925U

CN214681925U - A grinder for lithium iron phosphate production

Info

Publication number: CN214681925U
Application number: CN202022656765.4U
Authority: CN
Inventors: 黄辛龙; 刘雄风; 文崇程
Original assignee: Guangxi Yuneng New Energy Battery Material Co ltd
Current assignee: Guangxi Yuneng New Energy Battery Material Co ltd
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-11-12
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a grinding device for lithium iron phosphate production, which comprises a grinding box, a driving motor and a rotating shaft, wherein the upper inner part of the grinding box is connected with a stirring box, a feed inlet is communicated with the stirring box, the lower inner part of the grinding box is provided with a grinding fixed block, and the grinding fixed block forms a blanking channel which is communicated up and down in the middle; the pivot upper end is connected to the driving motor output, the pivot is vertical to be penetrated and to be ground the incasement and run through the agitator tank and extend to the below of grinding the fixed block through the intercommunication passageway, the part that the pivot is located the agitator tank is connected with stirring paddle leaf, the pivot is located to grind fixed block department and is equipped with first grinding movable block and second and grinds the movable block, there is the first interval of grinding between first grinding movable block and the grinding fixed block upper surface, the second is ground the movable block and is located and grinds the fixed block below, the second is ground the movable block and is ground the second interval that has the grinding between the fixed block lower surface. The utility model discloses occupation space is little, and is with low costs, and grinding efficiency is high, and it is effectual to grind.

Description

A grinder for lithium iron phosphate production

Technical Field

The utility model relates to a lithium iron phosphate production technical field, concretely relates to a grinder for lithium iron phosphate production.

Background

Compared with a nickel cobalt lithium manganate ternary material (NCM), a nickel cobalt lithium aluminate ternary material (NCA), lithium cobaltate and lithium manganate, the lithium iron phosphate cathode material has the advantages of high safety performance, long cycle life, good high-temperature performance, low raw material cost and the like, and has a very good application prospect.

At present, the lithium iron phosphate needs to be ground after mixing all raw materials during production, a mixing device is used for mixing, a ball mill is adopted for grinding, the equipment quantity is large, the occupied space is large, the investment cost is high, the grinding time consumption is long, the efficiency is low, and the grinding effect is poor.

Disclosure of Invention

To the above-mentioned technical problem that appears among the prior art, the utility model provides a grinder for lithium iron phosphate production, this grinder occupation space is little, and is with low costs, and grinding efficiency is high, grinds effectually.

The utility model adopts the technical proposal that: the grinding device for producing the lithium iron phosphate comprises a grinding box, a driving motor and a rotating shaft, wherein a feeding hole is formed in the top end of the grinding box, a discharging hole is formed in the bottom end of the grinding box, a stirring box is connected to the inner upper portion of the grinding box, an overflow hole is formed in the upper portion of the stirring box, the feeding hole is communicated with the stirring box, a grinding fixed block is arranged on the inner lower portion of the grinding box and fixedly arranged along the inner wall of the grinding box, and a feeding channel which is communicated up and down is formed in the middle of the grinding fixed block; driving motor locate and grind the case top, the pivot upper end is connected to the driving motor output, the pivot is vertical to penetrate and to grind the incasement and run through the agitator tank and extend to the below of grinding the fixed block through the intercommunication passageway, the part that the pivot is located the agitator tank is connected with stirring paddle leaf, the pivot is located to grind fixed block department and is equipped with first grinding movable block and second and grinds the movable block, first grinding movable block is located and grinds the fixed block top, first grinding movable block and the first interval that has the grinding between the fixed block upper surface, the second is ground the movable block and is located and grinds the fixed block below, the second that has the grinding between the movable block and the grinding fixed block lower surface is ground the movable block, first interval is greater than the second interval, first interval and second interval are through the intercommunication passageway intercommunication.

Preferably, the upper surface and the lower surface of the grinding fixed block are both inclined, the end of the upper surface, which is located at the communicating channel, is a low end, and the end of the lower surface, which is located at the communicating channel, is a high end.

Preferably, the lower end of the rotating shaft is provided with a fixed supporting rod, the fixed supporting rod is connected to the inner wall of the grinding box, and a bearing is arranged between the fixed supporting rod and the rotating shaft.

Preferably, the bottom of the grinding box is provided with a guide plate, the guide plate is arranged obliquely, the high end of the guide plate is connected to the inner wall of the grinding box, and the low end of the guide plate is connected to the discharge hole.

After the structure above the adoption, the utility model discloses upper portion sets up the agitator tank in grinding the incasement, mixes the stirring to the material earlier, and the material flows out the grinding region of below from the overflow mouth after full in the agitator tank and grinds, grinds in proper order and grinds through first interval and second interval, and grinding effect obtains strengthening, and this grinder accomplishes processes such as stirring grinding in certain space, and occupation space is little, and investment equipment's cost is reduced, and grinding efficiency is high, and grinding effect is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the stirring box of the present invention.

Fig. 3 is a schematic structural view of the connection between the rotating shaft and the grinding movable block of the present invention.

Fig. 4 is another schematic structural diagram of the connection between the rotating shaft and the grinding movable block of the present invention.

In the figure, 1, grinding box, 1.1, feed inlet, 1.2, discharge gate, 2, driving motor, 3, pivot, 4, agitator tank, 4.1, overflow mouth, 5, stirring paddle, 6, first grinding movable block, 7, grinding fixed block, 8, fixed support rod, 9, guide plate, 10, second grinding movable block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

As shown in fig. 1-4, the utility model relates to a grinding device for lithium iron phosphate production, including grinding case 1, driving motor 2 and pivot 3, the top of grinding case 1 is equipped with feed inlet 1.1, the bottom is equipped with discharge gate 1.2, the interior upper portion of grinding case 1 is connected with agitator tank 4, agitator tank 4 upper portion sets up overflow mouth 4.1, feed inlet 1.1 and agitator tank 1 communicate, the interior lower part of grinding case 1 is equipped with grinding fixed block 7, grinding fixed block 7 is along the fixed setting of the inner wall of grinding case 1, grinding fixed block 7 forms a feed passage that communicates from top to bottom in the middle part of grinding case 1; driving motor 2 locates and grinds 1 top of case, 3 upper ends of pivot are connected to 2 output ends of driving motor, 3 vertical penetrations of pivot run through agitator tank 4 and extend to the below of grinding fixed block 7 through the intercommunication passageway in grinding case 1, 3 parts that lie in agitator tank 4 of pivot are connected with stirring

paddle leaf

5, 3 places in grinding fixed block 7 and is equipped with first grinding movable block 6 and second grinding movable block 10, first grinding movable block 6 is located grinds fixed block 7 top, there is the first interval of grinding between first grinding movable block 6 and the 7 upper surfaces of grinding fixed block, second grinding movable block 10 is located grinds fixed block 7 below, the second that has the grinding between second grinding movable block 10 and the 7 lower surfaces of grinding fixed block is spaced, first interval is greater than the second interval, first interval and second interval communicate through the intercommunication passageway.

When the utility model is implemented specifically, the grinding box 1 and the stirring box 4 are both hollow cylindrical, the upper end of the stirring box 4 is provided with a connecting flange, the stirring box 4 is connected with the lower surface of the top plate of the grinding box 1 through the connecting flange, the rotating shaft 3 is positioned in the middle of the grinding box 1, the rotating shaft 3 is coincided with the central axis of the grinding box 1, and the joint of the rotating shaft 3 and the stirring box 4 is sealed; the grinding fixed block 7 is annular and is fixed on the inner wall of the grinding box 1 and extends towards the middle of the grinding box 1, but does not mutually abut against each other to form a blanking channel which is communicated up and down. Set up a plurality of feed inlets 1.1 on the 1 roof of grinding box, feed inlet 1.1 and agitator tank 4 intercommunication have overflow mouth 4.1 on the lateral wall on 4 upper portions of agitator tank, and the part of pivot 3 in agitator tank 4 is connected with stirring

paddle leaf

5, and 5 symmetric connection of stirring paddle leaf set up one to two sets of in the both sides of pivot 3 according to the condition.

The utility model discloses an upper surface and lower surface that grind fixed block 7 all are the slope form, and the one end that the upper surface is located the intercommunication passageway is the low side, and the one end that the lower surface is located the intercommunication passageway is high-end. That is, the upper surface is high at both ends and low in the middle, and the lower surface is low at both ends and high in the middle, as viewed from the entire longitudinal section of the grinding box 1. First grinding movable block 6 and second grind movable block 10 and all set up the polylith, and first grinding movable block 6 and second grind movable block 10 symmetric connection on pivot 3, and first grinding movable block 6 and second grind movable block 10 and also can set to a monoblock respectively certainly, connect through its middle part and pivot 3, and the lapping surface of first grinding movable block 6 is parallel with the upper surface who grinds fixed block 7, and the lapping surface that the second ground movable block 10 is parallel with the lower surface who grinds fixed block 7.

The utility model discloses a lower extreme of pivot is provided with fixed support bar 8, fixed support bar 8 is connected at grinding case 1 inner wall, set up the bearing between fixed support bar 8 and the pivot 3, fixed support bar 8 fixing bearing seat promptly, be equipped with the bearing on the bearing frame, the bearing cup joints pivot 3, fixed support bar 8 is used for the 3 lower extremes of fixed pivot, the upper end of pivot 3 also can rotate through the bearing and connect on grinding case 1 roof to extend to grind case 1 outer and be connected with driving motor 2 output.

The utility model discloses a grinding case 1's bottom is equipped with the guide plate, and the slope of guide plate 9 sets up, and the high-end is connected on grinding case 1 inner wall, and the low side is connected to discharge gate 1.2, and discharge gate 1.2 sets up at the middle part of grinding case 1 bottom plate.

The utility model discloses at specific during operation, the raw materials gets into agitator tank 4 from the feed inlet in, and 2 drive pivots 3 drive stirring paddle leaf 5 stir the raw materials, and the raw materials reachs from the 4.1 ejection of compact of overflow mouth and reachs grinding fixed block 7 and grind the interval between the movable block and grind after reacing overflow mouth 4.1 to carry out the second through the intercommunication passageway and grind, follow the discharge gate ejection of compact at last.

Claims

1. The utility model provides a grinder for lithium iron phosphate production which characterized in that: the grinding device comprises a grinding box, a driving motor and a rotating shaft, wherein a feed inlet is formed in the top end of the grinding box, a discharge outlet is formed in the bottom end of the grinding box, a stirring box is connected to the inner upper portion of the grinding box, an overflow port is formed in the upper portion of the stirring box, the feed inlet is communicated with the stirring box, a grinding fixed block is arranged on the inner lower portion of the grinding box and fixedly arranged along the inner wall of the grinding box, and a vertically communicated blanking channel is formed in the middle of the grinding fixed block; driving motor locate and grind the case top, the pivot upper end is connected to the driving motor output, the pivot is vertical to penetrate and to grind the incasement and run through the agitator tank and extend to the below of grinding the fixed block through the intercommunication passageway, the part that the pivot is located the agitator tank is connected with stirring paddle leaf, the pivot is located to grind fixed block department and is equipped with first grinding movable block and second and grinds the movable block, first grinding movable block is located and grinds the fixed block top, first grinding movable block and the first interval that has the grinding between the fixed block upper surface, the second is ground the movable block and is located and grinds the fixed block below, the second that has the grinding between the movable block and the grinding fixed block lower surface is ground the movable block, first interval is greater than the second interval, first interval and second interval are through the intercommunication passageway intercommunication.

2. The grinding device for lithium iron phosphate production according to claim 1, characterized in that: the upper surface and the lower surface of the grinding fixed block are both inclined, the end of the upper surface, which is located at the communicating channel, is a low end, and the end of the lower surface, which is located at the communicating channel, is a high end.

3. The grinding device for lithium iron phosphate production according to claim 1, characterized in that: the lower extreme of pivot is provided with fixed support bar, and fixed support bar connects at grinding incasement wall, sets up the bearing between fixed support bar and the pivot.

4. The grinding device for lithium iron phosphate production according to claim 1, characterized in that: the bottom of the grinding box is provided with a guide plate, the guide plate is arranged in an inclined mode, the high end of the guide plate is connected to the inner wall of the grinding box, and the low end of the guide plate is connected to the discharge hole.