阅读说明：本技术 一种用于单水氢氧化锂生产的精密过滤器 (A precision filter for production of lithium hydroxide monohydrate ) 是由 何开茂 何东利 伍震洲 汪梨超 吴金友 胡见平 谭培渊 于 2019-08-28 设计创作，主要内容包括：本发明公开了一种用于单水氢氧化锂生产的精密过滤器,包括筒体和支撑筒体的支腿,所述的筒体上设有封头、进料口、出料口和排污口,所述的筒体内设有花板和多根过滤管,所述的花板可拆卸连接在筒体内壁上的固定块上,花板上设置有过滤管的连接孔,多根过滤管的上端通过连接孔与花板连接且过滤管之间相互平行,所述的过滤管为微米级多孔过滤管,过滤管的下端封闭且连接在隔板上；所述的筒体上还设有清洗口,清洗口设置在封头和花板与之间的筒壁上,清洗口与筒体外的反冲洗管连接。本发明能够实现在线清洗,操作简单,工作量小,效果好,效率高。(The invention discloses a precision filter for producing lithium hydroxide monohydrate, which comprises a cylinder and supporting legs for supporting the cylinder, wherein the cylinder is provided with an end socket, a feed inlet, a discharge outlet and a drain outlet; the cylinder body is also provided with a cleaning port, the cleaning port is arranged on the cylinder wall between the seal head and the flower plate, and the cleaning port is connected with a back-flushing pipe outside the cylinder body. The invention can realize on-line cleaning, and has the advantages of simple operation, small workload, good effect and high efficiency.)

1. The utility model provides a precision filter for production of lithium hydroxide monohydrate, includes the landing leg of barrel and support barrel, the barrel on be equipped with head, feed inlet, discharge gate and drain, its characterized in that: the filtering device is characterized in that a pattern plate and a plurality of filtering pipes are arranged in the cylinder body, the pattern plate is detachably connected to a fixed block on the inner wall of the cylinder body, connecting holes of the filtering pipes are formed in the pattern plate, the upper ends of the filtering pipes are connected with the pattern plate through the connecting holes, the filtering pipes are parallel to each other, the filtering pipes are micron-sized porous filtering pipes, and the lower ends of the filtering pipes are closed and connected to a partition plate; the cylinder body is also provided with a cleaning port, the cleaning port is arranged on the cylinder wall between the seal head and the flower plate, and the cleaning port is connected with a back-flushing pipe outside the cylinder body.

2. The precision filter for the production of lithium hydroxide monohydrate of claim 1, wherein: the connecting holes of the pattern plate are uniformly distributed, and the filter pipe is in threaded connection with the connecting holes in the pattern plate.

3. The precision filter for the production of lithium hydroxide monohydrate of claim 1, wherein: the cross-section of the fixed block is L-shaped, and the pattern plate is lapped on the fixed block and connected through the bolt.

Technical Field

The invention relates to the field of lithium hydroxide production equipment, in particular to a precision filter for producing lithium hydroxide monohydrate.

Background

The lithium hydroxide monohydrate is white crystal powder, can be dissolved in water and is slightly soluble in organic solvents such as alcohol, and the like, is widely applied to the fields of batteries, chemical engineering, energy sources, metallurgy, ceramics, semiconductors and the like, is mainly used for preparing the anode material of the lithium ion battery in the field of batteries, and can also be used as an additive of the electrolyte of the alkaline storage battery. The main method for producing the lithium hydroxide monohydrate at present is to use spodumene as a raw material, and the lithium hydroxide monohydrate is obtained by the process steps of high-temperature calcination transformation, acidification roasting, sodium sulfate freezing separation, evaporation, low-temperature recrystallization and the like, wherein a plurality of steps of the production process all use a precision filter, but after the precision filter is used for a period of time, filtered impurities easily cause blockage of a filter element pipe and need to be cleaned, most of the existing precision filter cleaning needs to disassemble the filter element pipe, the workload is large, the efficiency is low, the production is discontinuous, and the production is influenced.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a precision filter for producing lithium hydroxide monohydrate,

the filter can realize online cleaning, and is simple to operate, small in workload, good in effect and high in efficiency.

The technical scheme adopted by the invention is as follows: the precise filter for producing the lithium hydroxide monohydrate comprises a barrel and supporting legs for supporting the barrel, wherein the barrel is provided with an end socket, a feed inlet, a discharge outlet and a drain outlet, a flower plate and a plurality of filter pipes are arranged in the barrel, the flower plate is detachably connected to a fixed block on the inner wall of the barrel, a connecting hole of each filter pipe is arranged on the flower plate, the upper ends of the filter pipes are connected with the flower plate through the connecting holes, the filter pipes are parallel to each other, the filter pipes are micron-sized porous filter pipes, and the lower ends of the filter pipes are sealed and connected to a partition plate; the cylinder body is also provided with a cleaning port, the cleaning port is arranged on the cylinder wall between the seal head and the flower plate, and the cleaning port is connected with a back-flushing pipe outside the cylinder body.

As a further optimization of the technical scheme, the connecting holes of the pattern plate are uniformly distributed, and the filter pipe is in threaded connection with the connecting holes on the pattern plate.

As a further optimization of the technical scheme, the cross section of the fixing block is L-shaped, and the pattern plates are lapped on the fixing block and connected through bolts.

After the structure is adopted, the precision filter for producing the lithium hydroxide monohydrate does not need to disassemble the filter pipe when the filter pipe needs to be cleaned, only high-pressure water is used for leading the water into the barrel through the backwashing pipe, and the high-pressure water enters the filter pipe and then is sprayed out of the filter pipe from the filter holes of the filter pipe, so that filtered substances on the outer wall of the filter pipe are washed away.

Drawings

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

In the figure, 1-cylinder, 1.1-feeding hole, 1.2-discharging hole, 1.3-sewage draining hole, 2-supporting leg, 3-sealing head, 4-fixing block, 5-filtering pipe and 6-flower plate.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

As shown in figure 1, the precision filter for producing the lithium hydroxide monohydrate of the invention comprises a cylinder body 1 and supporting legs 2 for supporting the cylinder body 1, wherein the cylinder body 1 is provided with an end enclosure 3, a feed inlet 1.1, a discharge outlet 1.2 and a sewage discharge outlet 1.3, the end enclosure 3 is arranged at the upper end of the cylinder body 1, the feed inlet 1.1 is arranged on the cylinder wall at the lower part of the cylinder body 1, the discharge outlet 1.2 is arranged on the cylinder wall at the upper part of the cylinder body 1, the sewage discharge outlet 1.3 is arranged at the lower end of a conical discharge hopper below the cylinder body 1, a flower plate 6 and a plurality of filter pipes 5 are arranged in the cylinder body 1, the flower plate 6 is detachably connected on a fixed block 4 on the inner wall of the cylinder body 1, the flower plate 6 is provided with connecting holes of the filter pipes 5, the upper ends of the plurality of filter pipes 5 are connected with the flower plate 6 through the connecting holes and are, the lower end of the filter pipe 5 is closed and connected to the partition board, the side wall of the cylinder 1 is also provided with a cleaning opening, the cleaning opening is arranged on the cylinder wall between the seal head 3 and the flower plate 6, the cleaning opening is connected with a back washing pipe outside the cylinder 1, and the discharge opening 1.2 is also arranged on the cylinder wall between the seal head 3 and the flower plate 6.

When the filtering device is specifically implemented, the cylinder body 1 is a hollow cylinder, the connecting holes on the pattern plate 6 are uniformly distributed, the filtering pipes 5 are uniformly distributed on the pattern plate 6, the filtering pipes 5 are in threaded connection with the connecting holes of the pattern plate 6, namely, the outer wall of each filtering pipe 5 is provided with threads, the pattern plate 6 is provided with a plurality of connecting holes with the same number of the filtering pipes 5, and the inner wall of each connecting hole is provided with corresponding threads; the cross-section of fixed block 4 is the L style of calligraphy, and the overlap joint of card 6 is just through bolted connection on the horizontal edge of fixed block 4, and fixed block 4 is the polylith, evenly sets up respectively on the inner wall of barrel 1, also can be the annular piece that a cross-section is the L style of calligraphy.

When the material liquid is filtered, the material enters the cylinder 1 from the feed inlet 1.1 of the cylinder 1, enters the filter pipe 5 through the micron-sized filter holes on the filter pipe 5 under the action of pressure, impurities are filtered on the outer wall of the filter pipe 5, and the material liquid entering the filter pipe 5 enters the discharge pipe outside the cylinder 1 along with the discharge port 1.2 and enters the next procedure. When the impurities on the outer wall of the filter pipe 5 need to be cleaned, the back flushing pipe connected with the cleaning port is used for pressing cleaning water into the barrel 1 by high pressure and entering the filter pipe 5, the impurities on the outer wall of the filter pipe 6 are washed away by spraying the impurities out of the filter hole of the filter pipe 5 under the action of the pressure, and the filter pipe 5 can be cleaned. The invention achieves the purpose of flushing by utilizing the described structure, realizes the purpose of no need of disassembly, reduces the workload and improves the working efficiency.