CN213977832U - Washing system of filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process - Google Patents
Washing system of filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process Download PDFInfo
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Abstract
The utility model discloses a washing system for filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process, which comprises a filter press, a first storage container, a second storage container, a third storage container and a fourth storage container; the water outlets of the second storage container, the third storage container and the fourth storage container are respectively connected with the feed port of the filter press, and the water inlets of the first storage container, the second storage container and the third storage container are respectively connected with the discharge port of the filter press. The utility model discloses a with the washing water of a period before in the washing process let in be used for the last washing, during the higher storage container of manganese sulfate content, the washing water of surplus time lets in the lower storage container of manganese sulfate content and is used for this circulation washing, the washing quantity of having reduced as far as possible, improves washing effect every time, has also reduced the washing time.
Description
Technical Field
The utility model relates to a hydrometallurgy technical field, concretely relates to washing system of filter-pressing filter residue in manganese dioxide ore leaches manganese sulfate technology.
Background
The filter press is a mechanical device which applies a certain pressure to a target by using a special filter medium to dialyze liquid, and is a common solid-liquid separation device. The method is applied to chemical production at the beginning of the 18 th century, and is still widely applied to the industries of chemical industry, pharmacy, metallurgy, dye, food, brewing, ceramics, environmental protection and the like until now.
In the hydrometallurgy industry, a filter press filtering system is basically adopted for solid-liquid separation of solid-liquid mixture after complete reaction, but most of water content in filter residue is within 15% -50% according to different slag performances, a large amount of valuable substances are contained in the filter residue and need to be recovered, partial substances in the slag exceed the standard and cannot be comprehensively utilized, or harmful substances in the slag exceed the standard and cannot meet the environmental protection requirement, and the like. So the filter residue needs to wash and filter many times, and present technology is mostly to carry out the filter-pressing with the pressure filter with the filter residue, smashes the filter residue after the filter-pressing and gets into the mixing thick liquid bucket, adds water and passes through the stirring and mixing thick liquid, and filter-pressing again, so many times mixing thick liquid and filter-pressing just can make the sediment satisfy the requirement, but above-mentioned technology has following problem:
1. the process has long operation time: the filter residue unloading time is long, such as 400m2The filter press needs 20-30min for slag unloading; the filter residue size mixing time is long, and according to different filter residue material properties, the filter residue needs to be stirred for 30-60min to fully break up the filter residue blocks into a pulp shape; the time for filter pressing and separation of the slurried slag is long, and the filter pressing time is about 25 min.
2. The water and electricity consumption is large: a large amount of water, generally 1m, is required to be added into filter residues during size mixing3The slag needs to be added by 1.5-2m3The filter residue can be fully slurried by stirring water; needs to be adjusted for a plurality of timesSlurry, conveying and filter pressing, and the electric quantity consumption is more.
3. The production investment is high: a special size mixing barrel needs to be purchased and placed in a factory building; the filter cake need get into the mixing bucket again after the preliminary breakage in the sediment fill, and the filter residue is broken easily and is blocked in the sediment fill, and is broken incomplete sometimes, still blocks the stirring in the mixing bucket easily, leads to agitator motor to burn out etc..
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above technical problem, provide a washing system of filter-pressing filter residue in manganese dioxide ore leaches manganese sulfate technology to reduce the washing time, reduce technology cost.
In order to solve the technical problem, the utility model provides a technical scheme does:
a washing system for filter-pressing filter residues in a manganese dioxide ore manganese sulfate leaching process comprises a filter press, a first storage container, a second storage container, a third storage container and a fourth storage container;
the water outlets of the second storage container, the third storage container and the fourth storage container are respectively connected with the feed inlet of the filter press through a first water inlet branch, a second water inlet branch and a third water inlet branch, and the water inlets of the first storage container, the second storage container and the third storage container are respectively connected with the discharge outlet of the filter press through a first water outlet branch, a second water outlet branch and a third water outlet branch;
the first storage container is for storing: washing water flowing out from a previous period of time in the first washing process;
the second storage container is for storing: washing water for the first washing, washing water flowing out of the rest time in the first washing process, and washing water flowing out of the previous time in the second washing process;
the third storage container is for storing: washing water for the second washing, washing water flowing out in the rest time in the second washing process and washing water flowing out in the third washing process;
the fourth storage vessel is for storing: wash water for the third wash.
The first storage container is also used for storing filtrate of the reaction materials after pressure filtration by the pressure filter.
Furthermore, the first water inlet branch, the second water inlet branch, the third water inlet branch, the first water outlet branch, the second water outlet branch and the third water outlet branch are respectively provided with an electric control valve.
Furthermore, pumps are respectively arranged between the water outlets of the second storage container, the third storage container and the fourth storage container and the feed inlet of the filter press.
And further, the filter pressing machine further comprises a control system, and the control system controls the automatic opening and closing of the electric control valve and the automatic opening and closing of the pump so as to realize automatic filter pressing and washing.
Furthermore, the filter press adopts a diaphragm filter press, and the filter press adopts a filter plate with middle feeding and water outlets at four corners.
The method for washing by adopting the system comprises the following steps:
(1) carrying out first washing on filter residues obtained after filter pressing of reaction materials for producing manganese sulfate by acid leaching of manganese dioxide ore through a filter press, wherein the first washing is to pump washing water in a second storage container into the filter press, introduce the washing water flowing out in a previous period of time in the washing process into the first storage container, return the washing water flowing out in the rest period of time to the second storage container, and carry out circular washing;
(2) washing the filter residue obtained in the step (1) for the second time, wherein the washing water in a third storage container is pumped into a filter press for the second time, the washing water flowing out in the previous period of time in the washing process is introduced into the second storage container, and the washing water flowing out in the rest period of time is returned to the third storage container for circular washing;
(3) and (3) washing the filter residue obtained in the step (2) for the third time, wherein the third washing is to pump clean water in a fourth storage container into the filter press, and introduce the effluent washing water into a third storage container.
The utility model discloses remain the filter residue after the reaction material filter-pressing of manganese sulfate technology is leached to the manganese dioxide ore deposit in the pressure filter intracavity, the reuse is washed water and is gone into the filter-press cubic through the pump pressure and wash the cake layer in, and through the control of washing water pressure, temperature and washing time, can make the washing effect of the soluble material in the filter residue unanimous with the washing effect of sizing mixing through the size mixing bucket among the prior art. And simultaneously, the utility model discloses a with the washing water of a period before in the washing process let in be used for the last washing, the higher storage container of manganese sulfate content, the washing water of surplus time lets in the lower storage container of manganese sulfate content and is used for this circulation washing, has reduced the washing water quantity as far as possible, improves washing effect every time, has also reduced the washing time.
Particularly, compared with the prior art, the beneficial effects of the utility model are that:
(1) the procedure being time-saving, e.g. 400m2The pressure filter of (1) begins from beginning feeding filter pressing, unloads the sediment to the filter cake washing back, adopts and adopts traditional washing sediment mode, and its total time needs about 265min altogether, and adopts the utility model discloses an intracavity washing mode, the required time is about 135min in a concrete embodiment, and about 130min with the time that traditional process saved.
(2) The water consumption for washing slag is reduced, and the washing slag can be pressed into a size of 400m2The volume of the filter residue is about 7m3The slag is washed by adopting the traditional mode, and the consumption of new water is 10.5-14m3The utility model adopts intracavity washing, and the new water consumption is 8-10m3The water consumption can be saved by 2.5-6m3。
(3) The electric energy is saved, the traditional crushing and slurrying of filter residues and the filter pressing of the residue slurry have the power consumption 2 to 4 times that of the intracavity slag washing system of the utility model.
(4) The equipment fund input volume reduces, and traditional material filter-pressing and filter residue washing line needs 3 pressure filters on the same scale, 2 sets of sediment fill and 2 sets of pulp buckets of taking the stirring, and adopts the utility model discloses an intracavity washing only needs a pressure filter and 3 wash the cask can.
(5) The process is greatly simplified, has reduced the cost of labor, and is more intelligent, adopts traditional washing sediment mode, is unfavorable for automated operation, uses manual operation as the owner basically, and adopts the utility model discloses intracavity washing mode, whole filter-pressing and washing sediment can automated operation.
(6) Reduce equipment area occupied, adopt a filter-pressing washing sediment production line of traditional washing sediment mode, its equipment area is the utility model discloses about 3 times of intracavity washing mode, so adopt the utility model discloses intracavity washing system technology is favorable to solid-liquid separation washing sediment system can improve the productivity on original area basis, reduces factory building construction input fund and so on.
Drawings
FIG. 1 is a schematic diagram of a washing system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the type of filter plate used in an embodiment of the present invention;
wherein: 1. a filter press; 2. a reaction kettle; 3. a fourth storage vessel; 4. a third storage vessel; 5. a second storage vessel; 6. a first storage container.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and meticulously, but the scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Unless otherwise specifically stated, various raw materials, reagents, instruments, equipment and the like used in the present invention are commercially available or can be prepared by an existing method.
The utility model discloses a washing system of filter-pressing filter residue in manganese dioxide ore leach manganese sulfate technology of embodiment, as shown in figure 1, including filter press 1, reation kettle 2, first storage container 6, second storage container 5, third storage container 4, fourth storage container 3. The reaction kettle 2 is connected to the feed inlet of the filter press 1 through a reaction material conveying pipeline, and a pump is arranged between the reaction kettle 2 and the feed inlet of the filter press 1.
The water outlets of the second storage container 5, the third storage container 4 and the fourth storage container 3 are respectively connected with the feed inlet of the filter press 1 through a first water inlet branch, a second water inlet branch and a third water inlet branch. The first water inlet branch, the second water inlet branch and the third water inlet branch are respectively provided with a valve. Pumps are respectively arranged between the water outlets of the second storage container 5, the third storage container 4 and the fourth storage container 3 and the feed inlet of the filter press 1.
The water inlets of the first storage container 6, the second storage container 5 and the third storage container 4 are respectively connected with the discharge hole of the filter press 1 through a first water outlet branch, a second water outlet branch and a third water outlet branch. The first water outlet branch, the second water outlet branch and the third water outlet branch are respectively provided with a valve.
The storage container of the utility model is used for storing washing water, clear water or manganese sulfate solution, and can be a barrel, a tank or a pool, etc.
In one embodiment, the filter press is a 4-outlet chamber membrane filter press, with the filter plates of the filter press having a center feed as shown in figure 2 and four outlets at the corners. By adopting the 4-water-outlet membrane filter press, the temperature of the washing water is increased and the pressure of the washing water is increased, so that the washing water can pass through the whole filter cake layer and then is discharged from 4 water outlets in the washing process of the filter cake, and soluble substances in the slag are dissolved in the washing water and are taken out. However, if the existing lower two-hole filter plate is adopted, the upper half part of the filter cake can be incompletely cleaned, so that soluble substances such as manganese and the like in the slag of the lower half part can be washed out, but the soluble substances in the slag of the upper half part are not obvious before washing.
All valves adopt electric control valves, and the pump adopts automatic start-stop system, when guaranteeing that there is the material in the storage container, opens the filter-pressing system after, makes the operation of entire system according to: the filter pressing of materials, multiple slag washing and tympanic membrane filter pressing can reduce the problems of manual work, misoperation of personnel and the like.
The utility model discloses a washing method of filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process of embodiment, including following step:
1) manganese dioxide ore is leached in an acid manner to produce manganese sulfate, the reacted materials are pumped into a filter press from a reaction kettle 2 through a pump for filter pressing, and filtrate (manganese sulfate solution) flows into a first storage container 6. According to the physical properties of solid granularity, viscosity and the like in the filter-pressing object, the filter-pressing pressure of the material is controlled to be 0.3-0.5 MPa. In a specific embodiment, before filter pressing, a valve at a part of a water outlet of the filter press is closed, filter pressing is carried out for 3-10min to ensure that a filter cavity is filled with slurry quickly, then all water outlet valves of the filter press are opened until the pressure at a feed inlet of the filter press reaches 0.3-0.5MPa and is stabilized for 2-5min, filter residues are ensured to fill the cavity of the filter press when filter pressing is finished, and a valve and a pump of a feed system are closed to finish filter pressing.
2) Washing the filter residue obtained in the step 1) for the first time, and pressing the washing water (which can be filled with clean water at first) in the second storage container 5 into the filter press by using a pump. The washing water pressure is controlled to be higher than the material pressure by 0.1-0.2 MPa. Setting the total time of the first washing for 15-45min, opening a valve to make the filter pressing washing water enter a first storage container 6 due to the high content of soluble manganese in the slag, after washing and filter pressing for 5-15min, switching a water outlet valve to return the washing water to a second storage container 5, carrying out circulating washing for 10-30min, and closing a pump and the valve to finish the first washing. The recycle wash may increase the replacement time of the wash water with the solubles in the slag. Therefore, the using amount of the washing water can be reduced as much as possible, the first washing effect is improved, the difference between the concentration of the manganese sulfate in the washing water entering the system and the concentration of the manganese sulfate in the raw material is reduced, the concentration of the manganese sulfate in the washing water is higher, and the cost for recovering the manganese sulfate in the washing water in the follow-up process is reduced.
3) Washing the filter residue obtained in the step 2) for the second time, pressing washing water (which can be filled with clean water at first) in a third storage container 4 into the filter press by a pump, wherein the washing water pressure is higher than the material pressure by 0.1-0.2MPa, the total time of the second washing is set to be 15-45min, the first 5-15min, opening a valve to enable the filter pressing washing water to enter the second storage container 5, the washing water is used for washing the filter residue in the step 3) for the first time, and then 10-30min, switching a water outlet valve to return the washing water to the third storage container 4, performing circulating washing, and closing the pump and the valve to finish the second washing.
4) Washing the filter residue obtained in the step 3) for the third time, wherein neutral clear water is adopted as third washing water, so that the washed residue is neutral as much as possible, and the use of the residue is not influenced. The water temperature of the clean water is increased to 50-60 ℃ by adopting waste heat, or the clean water can be directly condensed by adopting steam at 50-60 ℃, so that the soluble substances in the slag can be dissolved and washed conveniently. And (3) pressing the clean water in the fourth storage container 3 into the filter press by using a pump, wherein the washing water pressure is higher than the material pressure by 0.1-0.2MPa, closing the pump and a valve after washing for 5-15min, feeding the washing water into the third storage container 4, adding a small amount of sulfuric acid into the third storage container 4 to ensure that the pH value of the washing water is in the range of 4.0-6.5, effectively controlling manganese salt to be changed into manganese oxide precipitate, and washing the filter residue in the step 4) for secondary washing. Through three times of washing, more than 95% of soluble substances in the slag are washed out.
5) And then carrying out filter pressing on the filter residue for 10-30min by a tympanic membrane, pressing the water in the filter residue, feeding the washing water squeezed by the tympanic membrane into a third storage container 4, using the water for washing the filter residue in the step 3) for the second time, and reducing the water in the residue after the filter residue is squeezed by the tympanic membrane to 15-30%, thereby facilitating the subsequent transportation and use of the residue.
Wherein the washing water in each storage container can be used for washing the filter-pressing residue of the next batch.
The manganese dioxide ore leaches the manganese sulfate pressure filter and carries out solid-liquid separation, and the manganese content of its filtrating manganese sulfate solution is 80-130g/L, and through the filter residue after the filter pressing, water is at 25% -45% in the filter cake without passing tympanic membrane filter pressing, and the manganese content before its filter residue washing is 2% -6%, adopts the utility model discloses in the experimental operation of method washing, after the material filter pressing, can reduce soluble manganese in the sediment to below 0.5% through washing three times, wash the sediment 2 times effect unanimously with traditional mode basically.
However, the utility model saves time and has one 400m2The filter press is taken as an example, from the beginning of feeding and filter pressing to the moment of discharging slag after washing a filter cake, the traditional slag washing mode is adopted, the filter pressing is carried out for 30min, the first slag discharging is carried out for 25min, the size mixing in a first size mixing barrel is carried out for 30min, the first slag washing and filter pressing is carried out for 30min, the second slag discharging is carried out for 25min, the size mixing in a second size mixing barrel is carried out for 30min, the second slag washing and filter pressing is carried out for 30min, the drum membrane is squeezed to be dried, and the final slag discharging is carried out for 25min, wherein the total time is 265min. If the filter residue is washed in the cavity, in a specific embodiment, the time required is 30min for first washing, 30min for second washing, 20min for third washing, 30min for tympanic membrane filter pressing, and 25min for final residue unloading, the total time of the washing is totally 135min, and the time saved by the washing and the unloading is about 130min compared with the time saved by the traditional procedure.
Example 1
In the production process of leaching manganese sulfate by manganese dioxide, the temperature of materials before filter pressing is 50-90 ℃, in the solid-liquid separation process, slag is separated from manganese sulfate by a filter press, the water content in the slag is about 35% and the manganese content is about 5% before the filter residue is washed, the manganese sulfate in the slag needs to be fully washed out, the recovery rate of manganese is improved, the production cost is reduced, and meanwhile, the recycling of the slag is facilitated, and the following production mode is adopted:
1) after manganese dioxide leached manganese sulfate completely reacts, materials in the reaction kettle 2 are pressed into a filter press through a pump for filter pressing, the valves of 2 water outlets below the filter press are closed before filter pressing, after filter pressing is carried out for 8min to enable a filter cavity to be filled with slurry quickly, then the valves of four water outlets of the filter press are all opened until the pressure at the feed inlet of the filter press is 0.4MPa and stabilized for 2min, filter residues are filled in the filter press completely, the valve and the pump of a feed system are closed, and filter pressing for solid-liquid separation of the materials is stopped;
2) washing the filter residue in the step 1) for the first time, wherein the washing water is washing water in a second storage container 5, the washing water pressure at the inlet of a filter press is 0.6MPa, the water amount of four water outlets of the filter press is basically consistent through valve control, the washing water in the second storage container 5 is pressed into the filter press by a pump for 35min, the washing water in the first 10min is fed into a first storage container 6 by a control valve, the filter press washing water in the last 25min is returned into the second storage container 5 for circular washing, the pump from the second storage container 5 to the filter press section and related valves at a washing water outlet are closed after the washing is finished, the first slag washing procedure is finished, and about 75% of manganese in the filter residue is washed out and fed into the washing water;
3) washing the filter residue in the step 2) for the second time, wherein the washing water is washing water in a third storage container 4, the washing water pressure at the inlet of the filter press is 0.6MPa, the water amount of four water outlets of the filter press is basically consistent through valve control, the washing water in the third storage container 4 is pressed into the filter press by a pump for 35min, then the washing water in the first 10min is controlled by the valve to enter a second storage container 5, the washing water in the second storage container 5 is used for washing the filter residue for the first time, the filter pressing washing water in the last 25min is returned to the third storage container 4 for circular washing, after washing is finished, the pump from the third storage container 4 to the filter press section and the relevant valves of the filter pressing water outlets are closed, the secondary slag washing process is finished, and about 90% of manganese in the filter residue is washed out and enters the washing water;
4) washing filter residues for the third time, wherein the washing water adopts clean water, the temperature of the clean water in the fourth storage container 3 is raised to about 50 ℃ by using waste heat, or steam condensate water at about 50 ℃ is directly used, the washing water pressure at the inlet of the filter press is 0.6MPa, the water in the fourth storage container 3 is pressed into the filter press by a pump to wash the residues for 10min, the washing water enters the third storage container 4, a small amount of sulfuric acid is added into the third storage container 4 to adjust the pH value of the washing water to about 5.0, the washing water is used for washing the filter residues for the second time, then the pump and related valves from the fourth storage container 3 to the filter press section are closed, the third residue washing procedure is completed, and about 95 percent of manganese in the washing water is washed out and enters the washing water;
5) and washing the filter residue for three times, and then performing filter pressing for 30min by using a tympanic membrane, wherein the tympanic membrane pressure is 0.8MPa, the water content in the filter residue can be reduced to below 25%, more than 95% of soluble manganese in the filter residue can be washed out, and the filter residue can meet the requirement of recycling.
Example 2
In the production process of leaching manganese sulfate by manganese dioxide, the water temperature of materials before filter pressing is 50-90 ℃, in the solid-liquid separation process, slag is separated from manganese sulfate by a filter press, the water content in the slag before washing of filter slag is about 45%, the manganese content is about 6%, the manganese sulfate in the slag needs to be sufficiently washed out, the recovery rate of manganese is improved, the production cost is reduced, and meanwhile, the recycling of the slag is facilitated, and the following production mode is adopted:
1) after manganese dioxide leached manganese sulfate completely reacts, materials in the reaction kettle 2 are pressed into a filter press through a pump for filter pressing, the valves of 2 water outlets below the filter press are closed before filter pressing, after filter pressing is carried out for 3min to enable a filter cavity to be filled with slurry quickly, then the valves of four water outlets of the filter press are all opened until the pressure at the feed inlet of the filter press is 0.5MPa and stabilized for 3min, filter residues are filled in the filter press completely, the valve and the pump of a feed system are closed, and filter pressing for solid-liquid separation of the materials is stopped;
2) washing the filter residue in the step 1) for the first time, wherein the washing water is washing water in a second storage container 5, the washing water pressure at the inlet of the filter press is 0.6MPa, the water amount of four water outlets of the filter press is basically consistent through valve control, the washing water in the second storage container 5 is pressed into the filter press by a pump for 45min, the washing water in the first 15min is fed into the first storage container 6 by a control valve, the filter press washing water in the last 30min is returned into the second storage container 5 for circular washing, the pump from the second storage container 5 to the filter press section and the relevant valves of the water outlets of the filter press are closed after the washing is finished, the first slag washing procedure is finished, and about 75% of manganese in the filter residue is washed out and fed into the washing water;
3) washing the filter residue in the step 2) for the second time, wherein the washing water is washing water in a third storage container 4, the washing water pressure at the inlet of the filter press is 0.6MPa, the water amount of four water outlets of the filter press is basically consistent through valve control, the washing water in the third storage container 4 is pressed into the filter press by a pump for 45min, then a filter press water outlet valve is controlled to enable the washing water in the first 15min to enter a second storage container 5, the second storage container 5 is washed for washing the filter residue for the first time, the filter press washing water in the last 30min returns to the third storage container 4 for circular washing, after washing is finished, the pump from the third storage container 4 to the filter press section and the relevant valves of a filter press water removal port are closed, the second washing procedure is finished, and about 90% of manganese in the filter residue is washed out and enters the washing water;
4) washing filter residues for the third time, wherein the washing water adopts clean water, the temperature of the clean water in a fourth storage container 3 is raised to about 60 ℃ by using waste heat, or steam condensate water at 60 ℃ is used, the washing water pressure at the inlet of a filter press is 0.6MPa, the water in the fourth storage container 3 is pressed into the filter press by a pump to wash the filter residues for 15min, the washing water enters a third storage container 4, a small amount of sulfuric acid is added into the third storage container 4 to adjust the pH value to about 5.5, the washing water is used for washing the filter residues for the second time, then the pump from the fourth storage container 3 to the filter press section and a valve related to a filter pressing water outlet are closed, the third washing process of the filter residues is completed, and about 95 percent of manganese in the filter residues is washed out and enters the washing water;
5) and washing the filter residue for three times, and then performing filter pressing for 35min by using a tympanic membrane, wherein the tympanic membrane pressure is 0.8MPa, the water content in the filter residue can be reduced to below 25%, more than 95% of soluble manganese in the filter residue can be washed out, and the filter residue can meet the requirement of recycling.
The foregoing is illustrative of the preferred embodiment of the present invention and is not to be construed as limiting the invention in any way. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention should fall within the protection scope of the technical solution of the present invention.
Claims (7)
1. A washing system for filter-pressing filter residues in a manganese dioxide ore manganese sulfate leaching process is characterized by comprising a filter press, a first storage container, a second storage container, a third storage container and a fourth storage container;
the water outlets of the second storage container, the third storage container and the fourth storage container are respectively connected with the feed inlet of the filter press through a first water inlet branch, a second water inlet branch and a third water inlet branch, and the water inlets of the first storage container, the second storage container and the third storage container are respectively connected with the discharge outlet of the filter press through a first water outlet branch, a second water outlet branch and a third water outlet branch.
2. The washing system as claimed in claim 1, further comprising a reaction vessel for performing acid leaching of manganese dioxide ore to produce manganese sulfate, the reaction vessel being connected to a feed inlet of the filter press through a reaction material transfer line.
3. A washing system according to claim 1 or 2, wherein the first water inlet branch, the second water inlet branch, the third water inlet branch, the first water outlet branch, the second water outlet branch and the third water outlet branch are respectively provided with an electric control valve.
4. The washing system as claimed in claim 3, wherein a pump is provided between the water outlet of the second storage vessel, the water outlet of the third storage vessel, and the water outlet of the fourth storage vessel, and the feed inlet of the filter press.
5. The washing system as claimed in claim 4, further comprising a control system for controlling the automatic opening and closing of the electrically controlled valve and the automatic opening and closing of the pump by the control system to achieve automatic filter pressing and washing.
6. A washing system according to claim 1 or 2, wherein the filter press is a membrane filter press.
7. The washing system of claim 6, wherein the filter press employs a filter plate with a center feed and four corners having water outlets.
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| CN202023175110.1U CN213977832U (en) | 2020-12-25 | 2020-12-25 | Washing system of filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process |
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| CN202023175110.1U CN213977832U (en) | 2020-12-25 | 2020-12-25 | Washing system of filter-pressing filter residue in manganese dioxide ore manganese sulfate leaching process |
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Denomination of utility model: Washing system for filter residues of pressure filtration in manganese dioxide ore leaching process of manganese sulfate Effective date of registration: 20220726 Granted publication date: 20210817 Pledgee: Tongren branch of China Construction Bank Corp. Pledgor: GUIZHOU DALONG HUICHENG NEW MATERIAL Co.,Ltd. Registration number: Y2022520000035 |