CN214915856U

CN214915856U - Feeding device of reaction kettle

Info

Publication number: CN214915856U
Application number: CN202120101629.0U
Authority: CN
Inventors: 高琦; 吴浩; 黄仁忠; 郑江峰; 张晨
Original assignee: Guangdong Jiana Energy Technology Co Ltd; Qingyuan Jiazhi New Materials Research Institute Co Ltd
Current assignee: Guangdong Jiana Energy Technology Co Ltd; Qingyuan Jiazhi New Materials Research Institute Co Ltd
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2021-11-30
Anticipated expiration: 2031-01-14

Abstract

The utility model discloses a reation kettle's feed arrangement, including feeding standpipe and the feeding return bend of intercommunication of each other, the external nitrogen gas pipe of feeding standpipe and second ball valve, install first ball valve on the nitrogen gas pipe, the feeding return bend is all fixed in the internal portion of cauldron through the support frame, processing has a plurality of discharge gates on the feeding return bend, discharge gate department installs the distributing device, the distributing device include the screw rod that links to each other with the feeding return bend, the cover is equipped with round platform slider and nut on the screw rod, forms annular clearance between round platform slider and the discharge gate, the round platform slider is outside to be the conical surface. This device increases discharge gate and distributing device, has strengthened dispersion effect, has enlarged the distribution area behind the raw materials entering reation kettle, more is favorable to the feed liquid misce bene, and nitrogen gas can be with remaining raw materials liquid clean up in the feed tube and keep intraductal malleation, prevents to remain the crystallization of raw materials liquid or the interior material of cauldron and gets into the inlet pipe and cause the inlet pipe to block up the problem.

Description

Feeding device of reaction kettle

Technical Field

The utility model relates to a supporting device of reation kettle improves design technical field, especially relates to a reation kettle's feed arrangement.

Background

The research and development of the lithium battery anode material is one of the most important fields of lithium battery research, and the ternary precursor is used as a key material of the lithium ion battery anode material, and plays a crucial role in the development of the electrochemical performance of the anode material in production and preparation.

The main stream method for industrially producing the ternary precursor is to inject materials into a reaction kettle by taking a nickel-cobalt-manganese mixed metal salt solution as a raw material solution, NaOH as a precipitator and ammonia water as a complexing agent in a forward-addition and parallel-flow feeding mode, and then perform a coprecipitation reaction to prepare the ternary precursor. In the production and preparation process of the ternary precursor, the precursors prepared by different feeding modes, different process parameters and different internal structures of the reaction kettle have obvious difference in physical and chemical indexes such as morphology, tap, specific surface and the like, so that the electrochemical performance of the anode material also has obvious difference. At present, the research and development of ternary precursors are mainly divided into two types: firstly, the optimization of production process parameters and secondly, the improvement of the internal structure of the reaction kettle. In the aspect of the research on the improvement of the internal structure of the reaction kettle, the improvement of the structure of the feed pipe is also the focus of attention of the technical personnel for developing ternary precursors.

The feed arrangement of prior art scheme, only a standpipe is as the inlet pipe, and in the feed liquid directly carried to reation kettle through the inlet pipe, the dispersion carried out chemical reaction under the effect of stirring, had following shortcoming: in the feeding mode, the concentration of the raw material liquid at the discharge port at the lower end of the feeding pipe is higher, and when the volume of the reaction kettle is larger, the material distribution of the whole reaction system is not uniform, which is not beneficial to the uniformity of the product; the material is dispersed unevenly, which easily causes particle agglomeration of the prepared precursor; resulting in local process parameter variation, local pH too high or too low, and generation of small particles, which causes micropowder problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a reation kettle's feed arrangement, increase discharge gate and distributing device, strengthened dispersion effect, enlarged the distribution region behind the raw materials entering reation kettle, more be favorable to the feed liquid misce bene, nitrogen gas can be with remaining raw materials liquid clean up in the feed tube and keep intraductal malleation, prevent to remain raw materials liquid crystallization or the interior material of cauldron and get into the inlet pipe and cause the inlet pipe to block up the problem.

In order to achieve the above purpose, the utility model discloses a technical scheme is: the utility model provides a reation kettle's feed arrangement, feeding standpipe and feeding return bend including the intercommunication of each other, the external nitrogen gas pipe of feeding standpipe and second ball valve, install first ball valve on the nitrogen gas pipe, the feeding return bend is all fixed in the internal portion of cauldron through the support frame, processing has a plurality of discharge gates on the feeding return bend, discharge gate department installs the distributing device, the distributing device include the screw rod that links to each other with the feeding return bend, the cover is equipped with round platform slider and nut on the screw rod, forms annular gap between round platform slider and the discharge gate, the round platform slider is outside to be the conical surface.

The screw rod runs through the circular truncated cone slider and is fastened through the nut, and the diameter of the bottom of the circular truncated cone slider is larger than the outer diameter of the discharge hole.

The top diameter of the circular truncated cone slider is smaller than the outer diameter of the discharge hole.

The radian of the feeding elbow pipe is coaxial with the kettle body of the reaction kettle.

The feeding vertical pipes are welded at the symmetrical positions of the feeding bent pipes, and the feeding bent pipes are positioned between the upper layer and the lower layer of the stirring blades of the kettle body.

The two ends of the feeding bent pipe are sealed, and the material of the distributing device is stainless steel or polytetrafluoroethylene.

The nitrogen pipe is connected with a nitrogen source, and the feeding vertical pipe is connected with the raw material liquid through a pump.

Compared with the prior art, the beneficial effects of the utility model are that: this device increases discharge gate and distributing device, has strengthened dispersion effect, has enlarged the distribution area behind the raw materials entering reation kettle, more is favorable to the feed liquid misce bene, and nitrogen gas can be with remaining raw materials liquid clean up in the feed tube and keep intraductal malleation, prevents to remain the crystallization of raw materials liquid or the interior material of cauldron and gets into the inlet pipe and cause the inlet pipe to block up the problem.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the position of the distributing device of the present invention.

The labels in the figures are: 1. a feed standpipe; 2. a first ball valve; 3. a nitrogen gas pipe; 4. a support frame; 5. a feeding bent pipe; 6. a distributing device; 7. a kettle body; 8. a screw; 9. a circular truncated cone slider; 10. a nut; 11. a second ball valve; 12. and (4) a discharge port.

Detailed Description

The following detailed description is provided to further explain the technical features and advantages of the present invention by referring to the accompanying drawings in combination with the embodiments.

As shown in fig. 1-2, the utility model discloses a feeding device of reation kettle, including feeding standpipe 1 and feeding return bend 5 of intercommunication each other, the external nitrogen gas pipe 3 of feeding standpipe and second ball valve 11, install first ball valve 2 on the nitrogen gas pipe, inside the feeding return bend all was fixed in the cauldron body 7 through support frame 4, processing has a plurality of discharge gates 12 on the feeding return bend, discharge gate cross sectional shape generally is the round hole, discharge gate department installs distributing device 6, distributing device include the screw rod 8 that links to each other with the feeding return bend, the cover is equipped with round platform slider 9 and nut 10 on the screw rod, forms annular clearance between round platform slider and the discharge gate, the round platform slider outside is the conical surface.

Furthermore, the screw rod penetrate through the circular truncated cone slider and are fastened through the nut, and the diameter of the bottom of the circular truncated cone slider is larger than the outer diameter of the discharge hole. The top diameter of the circular truncated cone slider is smaller than the outer diameter of the discharge hole. The radian of the feeding elbow pipe is coaxial with the kettle body of the reaction kettle.

Furthermore, the feeding vertical pipes are welded at the symmetrical positions of the feeding bent pipes, and the feeding bent pipes are positioned between the upper layer and the lower layer of the stirring blades of the kettle body. The both ends of feeding return bend seal, the material of distributing device is stainless steel or polytetrafluoroethylene, preferred polytetrafluoroethylene can prevent because of the magnetic substance influence that the wearing and tearing brought. The nitrogen pipe is connected with a nitrogen source, and the feeding vertical pipe is connected with the raw material liquid through a pump.

When this device used, stopped the feeding back, closed the second ball valve of feeding standpipe, opened the first ball valve on the nitrogen gas pipe, let in high-purity nitrogen gas by the nitrogen gas pipe, with feeding standpipe and feeding return bend in remaining feed liquid drum blow totally, make the inside malleation state that keeps, prevent that intraductal material crystallization or cauldron interior material admission pipe from leading to the fact stifled pipe problem. The device solves the technical problems in the background art, and adopts the method that the distribution mode of raw material liquid feeding in a reaction kettle is improved, specifically, a U-shaped pipe is used, the U-shaped pipe is provided with discharge ports, the number of the discharge ports is not limited to 5, compared with the feeding in the prior art, the feeding sites of raw materials are increased, and the dispersion effect is enhanced; the distributor is additionally arranged at the discharge port, an annular gap is formed between the discharge port and the circular platform sliding block, and the conical surface design of the circular platform sliding block is combined, so that raw material liquid is scattered along the annular gap and the conical surface after being discharged, and compared with the prior art, the distribution area of the raw material after entering the reaction kettle is enlarged, and the uniform mixing of the material liquid is facilitated; the inlet pipe is connected with the nitrogen gas pipe, stops the feeding back, opens nitrogen gas and can be with remaining raw materials liquid clean up in the inlet pipe and keep intraductal malleation, prevents to remain raw materials liquid crystallization or the interior material entering inlet pipe of cauldron and cause the inlet pipe to block up the problem.

Through the implementation and application of the device, the raw material liquid is more widely distributed in the reaction kettle, the dispersing effect is better, the prepared precursor elements are more uniformly distributed, and the problems that the appearance of the precursor is not uniform, small balls are generated and micro powder is caused due to local concentration difference can be avoided.

The utility model discloses in the device, involve other supplementary parts, be prior art or material like nitrogen gas source, external pump and stirring paddle leaf, affiliated technical staff can directly purchase or order from the market according to required product model and specification.

The electrical components presented in the text are all electrically connected with an external master controller and 220V commercial power or industrial power, and the master controller can be a conventional known device with a control function such as a computer.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

The present invention is described in detail in the above embodiments, and it should be understood that the described embodiments are not limited to the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Claims

1. The utility model provides a reation kettle's feed arrangement, a serial communication port, including feeding standpipe and the feeding return bend of intercommunication each other, the external nitrogen gas pipe of feeding standpipe and second ball valve, install first ball valve on the nitrogen gas pipe, the feeding return bend is all fixed in the internal portion of cauldron through the support frame, processing has a plurality of discharge gates on the feeding return bend, discharge gate department installs the distributing device, the distributing device include the screw rod that links to each other with the feeding return bend, the cover is equipped with round platform slider and nut on the screw rod, forms annular clearance between round platform slider and the discharge gate, the round platform slider is outside to be the conical surface.

2. The feeding device of the reaction kettle according to claim 1, wherein the screw rod penetrates through the circular truncated cone sliding block and is fastened through a nut, and the diameter of the bottom of the circular truncated cone sliding block is larger than the outer diameter of the discharge hole.

3. The feeding device of the reaction kettle according to claim 2, wherein the diameter of the top of the circular truncated cone sliding block is smaller than the outer diameter of the discharge hole.

4. The feeding device of the reaction kettle according to claim 3, wherein the radian of the feeding elbow is coaxial with the kettle body of the reaction kettle.

5. The feeding device of the reaction kettle according to claim 4, wherein the feeding vertical tube is welded at the symmetrical position of the feeding elbow, and the feeding elbow is positioned between the upper and lower stirring blades of the kettle body.

6. The feeding device of the reaction kettle according to claim 5, wherein the two ends of the feeding elbow are closed, and the material of the distributor is stainless steel or polytetrafluoroethylene.

7. The feeding device of the reaction kettle according to claim 6, wherein the nitrogen pipe is connected with a nitrogen source, and the feeding vertical pipe is connected with the raw material liquid through a pump.