CN206108926U - Filter pressing device of inferior cobalt of purification hydroxide - Google Patents

Abstract

The utility model relates to a filter pressing device of inferior cobalt of purification hydroxide, several to vertical clamp plate including the pressure filter, each is right be equipped with the filter bag that filters the inferior cobalt of hydroxide between the clamp plate, each is right the clamp plate upside is equipped with the passageway of negotiable washing liquid, is located between each two clamp plate to the clamp plate the filter bag downside is provided with the filter plate that the liquid that can supply after the washing flows out, and hydroxide asia cobalt filter -pressing when the filter bag in is during to the certain degree, and the liquid after this filter plate will wash channels into the passageway. The utility model discloses mixed liquid accessible filter plate after the well initial filter -pressing washing gets into the collecting pit of pressure filter, and because through the filter -pressing washing in earlier stage, when the result filter -pressing to the certain degree after, the result washs totally basically, just along with the pressure filter continue compress tightly, the washing liquid hardly gets into the result and washes it to realize mixing recycling of liquid, practice thrift the washing liquid, reduce cost.

Description

A kind of filter-pressing device of purified hydrogen cobalt protoxide

Technical field

This utility model is related to the technical field of purification of hydroxide cobalt, specifically a kind of pressure of purified hydrogen cobalt protoxide Filter device.

Background technology

The convenient source of industrial production hydroxide cobalt is sodium hydroxide and cobaltous chloride, sodium hydroxide and cobaltous chloride reaction Afterwards, hydroxide cobalt and Sodium Chloride can be generated, in order to obtain the hydroxide cobalt of LITHIUM BATTERY positive pole persursor material, it is necessary to opposite Into product carry out purification.Conventional industrial purification process is washing, typically using pressure filter to producing in washing process The filter pressing of thing one side is while washing, existing pressure filter is to apply certain pressure to product to pressing plate using several so that liquid oozes Separate out and flow out with the liquid mixing after washing, as this mixed liquor has been mingled with more impurity, therefore typically all discard Fall, cause larger waste.

Utility model content

For the problems referred to above, this utility model provides a kind of purified hydrogen cobalt protoxide of the repeatable liquid using after washing Filter-pressing device.

This utility model solve the technical scheme that adopted of above-mentioned technical problem for：A kind of filter pressing of purified hydrogen cobalt protoxide Device, including pressure filter is several to vertical pressing plate, it is per the filter bag that filters hydroxide cobalt is provided with described in a pair between pressing plate, each Passage to negotiable cleaning mixture is provided with the upside of the pressing plate, the cleaning mixture of the passage flow is from top to bottom to the hydrogen in filter bag Cobalt protoxide is washed, between two block pressur plates of every a pair of pressing plates be located at the filter bag on the downside of be provided be available for washing after Liquid flow out filter plate, when the hydroxide cobalt filter pressing in filter bag to a certain degree when, the filter plate by after washing liquid import The passage.

Preferably, the filter plate includes on the one of pressing plate being horizontally installed in every a pair of pressing plates and is located at described Upper filter plate on the downside of filter bag, the lower filter being horizontally arranged with another block pressur plate in this pair of pressing plate on the downside of the upper screen plate Plate, the upper and lower filter plate are moved and relative movement with corresponding two pressing plate, when the hydroxide cobalt filter pressing in filter bag is to certain journey When spending, by the upper filter plate of relative movement closing, on this, the liquid after washing is imported the passage to the lower filter plate by filter plate.

Preferably, row's strip through-hole on the upper filter plate, is offered, and each strip through-hole horizontally set, the lower filter The row's filter opening that can be connected with the row strip through-hole is provided with plate, the diameter of each filter opening is less than each strip through-hole The tapping channel connected with each strip through-hole is set in length, the upper filter plate, and the tapping channel is by into the liquid in strip through-hole Body imports the passage.

Preferably, the upper filter for another block pressur plate in this pair of pressing plate is offered in each block pressur plate in every a pair of pressing plates The groove in the pressing plate is inserted when plate or lower filter plate relative movement.

Preferably, the tapping channel passes through drain pipe and the channel connection.

Preferably, being provided with water pump on the drain pipe.

As can be known from the above technical solutions, the mixed liquor in this utility model after initial pressure filtration washing can be entered by filter plate and be pressed The collecting pit of filter, and due to the pressure filtration washing through early stage, when product filter pressing to a certain extent after, product washs dry substantially Only, and as the continuation of pressure filter is compressed, cleaning mixture hardly enters product and which is rinsed, therefore after later stage pressure filtration washing In mixed liquor, impurity content is less, and this part mixed liquor can then pass through filter plate of the present utility model introduction channel again, so as to reality The recycling of existing mixed liquor, saves cleaning mixture, reduces cost.

Description of the drawings

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the partial enlargement structural representation of a pair of pressing plates in this utility model.

Specific embodiment

Describe this utility model in detail below in conjunction with Fig. 1, Fig. 2, here illustrative examples of the present utility model and Illustrate for explaining this utility model, but be not intended as to restriction of the present utility model.

A kind of filter-pressing device of purified hydrogen cobalt protoxide, including pressure filter is several to vertical pressing plate 1, per pressing plate described in a pair Between be provided with the filter bag 2 for filtering hydroxide cobalt, per pressing plate described in a pair on the upside of be provided with the passage 3 of negotiable cleaning mixture, it is described The cleaning mixture of passage flow is washed to the hydroxide cobalt in filter bag from top to bottom, every a pair of pressing plates two block pressur plates it Between be located at the filter bag on the downside of be provided be available for wash after liquid flow out filter plate 4, filter pressing and washing after mixed liquor pass through Filter plate enters the collecting pit of pressure filter；And when the hydroxide cobalt filter pressing in filter bag to a certain degree when, the filter plate will can be washed Liquid afterwards imports the passage, realizes the recycling of cleaning mixture.Mixing liquid in introduction channel individually can be stored, then Previous cleaning is carried out to product in next filter pressing, also previous cleaning can be carried out to product after mixing with new cleaning mixture.

Preferably, the filter plate 4 includes on the one of pressing plate being horizontally installed in every a pair of pressing plates and is located at institute The upper filter plate 41 on the downside of filter bag is stated, is horizontally arranged with another block pressur plate in this pair of pressing plate on the downside of the upper screen plate Lower filter plate 42, the upper and lower filter plate are moved and relative movement with corresponding two pressing plate, when the hydroxide cobalt filter pressing in filter bag extremely When to a certain degree, by the upper filter plate of relative movement closing, on this, the liquid after washing is imported described logical the lower filter plate by filter plate Road；Specifically, row's strip through-hole 43, each strip through-hole horizontally set, the lower filter plate are offered on the upper filter plate On be provided with the row's filter opening 44 that can be connected with the row strip through-hole, the diameter of each filter opening is less than each strip through-hole The tapping channel 45 connected with each strip through-hole is set in length, the upper filter plate.In initial pressure-filtering process, upper and lower filter plate phase To movement, now filter opening is moved along the length direction of strip through-hole, and both communicate, and the liquid after washing then may pass through bar shaped Through hole and filter opening enter collecting pit；As two pressing plates drive upper and lower filter plate to continue to move towards, the filter opening is wrong with strip through-hole Open, both are not communicated with, i.e., play the strip through-hole of the upper filter plate of filter plate closing, this hydroxide cobalt filter pressing i.e. in the filter bag to Determine degree；Now, the liquid after pressure filtration washing only enters strip through-hole, without passing through from filter opening, collects in strip through-hole Liquid can by tapping channel enter the passage.

From the above it can be seen that the aperture of the length and filter opening of strip through-hole determines described " to a certain degree ", therefore implementing During, the aperture of the length and filter opening of strip through-hole should be adjusted according to the content of impurity in products.When product impurity content is higher, The impurity content in liquid after its later stage pressure filtration washing also can be of a relatively high, therefore early stage filter pressing degree should be larger, i.e. bar The length of shape through hole should be longer, the aperture of filter opening can also more greatly, to reduce the impurity content in later stage pressure filtration washing liquid, Ensure that the cleaning mixture impurity content in introduction channel is relatively low；Liquid when product impurity content is relatively low, after its later stage pressure filtration washing Interior impurity content is relatively low, therefore early stage filter pressing degree can be with smaller, i.e., the length of strip through-hole should be shorter, filter The aperture in hole can also be less, can reuse cleaning mixture to greatest extent.

In this utility model, offer in each block pressur plate in every a pair of pressing plates for another block pressur plate in this pair of pressing plate Upper filter plate or groove 5 in the pressing plate is inserted during lower filter plate relative movement, so can during two pressing plates are moved towards, on Lower filter plate will not interfere with the motion of pressing plate, it is ensured that everything goes well with your work carries out for pressing plate；In implementation process, the tapping channel passes through Water pump 7 is installed on liquid pipe 6 and the channel connection, and the drain pipe, so as to cleaning mixture is pumped in passage.

Above the technical scheme provided by this utility model embodiment is described in detail, it is used herein specifically Individual example is set forth to the principle and embodiment of this utility model embodiment, and the explanation of above example is only applicable to side Assistant solves the principle of this utility model embodiment；Simultaneously for one of ordinary skill in the art, implement according to this utility model Example, will change in specific embodiment and range of application, and in sum, this specification content should not be construed as To restriction of the present utility model.

Claims (6)

1. a kind of filter-pressing device of purified hydrogen cobalt protoxide, including pressure filter it is several to vertical pressing plate, per pressing plate described in a pair it Between be provided with the filter bag for filtering hydroxide cobalt, per pressing plate described in a pair on the upside of be provided with the passage of negotiable cleaning mixture, the passage The cleaning mixture of circulation is washed to the hydroxide cobalt in filter bag from top to bottom, it is characterised in that：The two of every a pair of pressing plates It is located between block pressur plate on the downside of the filter bag and is provided with the filter plate that the liquid after being available for washing flows out, when the hydroxide in filter bag Cobalt filter pressing to a certain degree when, the liquid after washing is imported the passage by the filter plate.

2. the filter-pressing device of purified hydrogen cobalt protoxide according to claim 1, it is characterised in that：The filter plate includes laterally It is arranged on the one of pressing plate in every a pair of pressing plates and the upper filter plate on the downside of the filter bag, it is another in this pair of pressing plate The lower filter plate being horizontally arranged with block pressur plate on the downside of the upper filter plate, the upper and lower filter plate move with corresponding two pressing plate and Relative movement, when the hydroxide cobalt filter pressing in filter bag to a certain degree when, the lower filter plate by relative movement close on filter Plate, on this, the liquid after washing is imported the passage by filter plate.

3. the filter-pressing device of purified hydrogen cobalt protoxide according to claim 2, it is characterised in that：Open up on the upper filter plate There is row's strip through-hole, each strip through-hole horizontally set is provided with the lower filter plate and can be connected with the row strip through-hole Logical row's filter opening, the diameter of each filter opening are arranged and each bar shaped in the upper filter plate less than the length of each strip through-hole The tapping channel of through hole connection, the tapping channel will import the passage into the liquid in strip through-hole.

4. the filter-pressing device of the purified hydrogen cobalt protoxide according to Claims 2 or 3, it is characterised in that：In every a pair of pressing plates Each block pressur plate in insert the pressure when offering upper filter plate or the lower filter plate relative movement for another block pressur plate in this pair of pressing plate Groove in plate.

5. the filter-pressing device of purified hydrogen cobalt protoxide according to claim 3, it is characterised in that：The tapping channel passes through Liquid pipe and the channel connection.

6. the filter-pressing device of purified hydrogen cobalt protoxide according to claim 5, it is characterised in that：Install on the drain pipe There is water pump.