CN113082803A - Ore pulp filter-pressing and filter cake size mixing system - Google Patents
Ore pulp filter-pressing and filter cake size mixing system Download PDFInfo
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- CN113082803A CN113082803A CN202110534396.8A CN202110534396A CN113082803A CN 113082803 A CN113082803 A CN 113082803A CN 202110534396 A CN202110534396 A CN 202110534396A CN 113082803 A CN113082803 A CN 113082803A
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- size mixing
- size
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D25/00—Filters formed by clamping together several filtering elements or parts of such elements
- B01D25/12—Filter presses, i.e. of the plate or plate and frame type
- B01D25/21—Plate and frame presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
- B01F33/811—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more consecutive, i.e. successive, mixing receptacles or being consecutively arranged
Abstract
The invention belongs to the field of ore dressing and metallurgical mines, and relates to an ore pulp filter pressing and filter cake size mixing system. It includes: the plate and frame filter presses (1) are arranged in an even number, every two plate and frame filter presses (1) are horizontally arranged at a certain interval, a rubber belt conveyor (2) is arranged below each plate and frame filter press (1), a size mixing tank (3) is arranged below each two horizontally arranged plate and frame filter presses (1), filter cakes are conveyed into the size mixing tank (3) through the rubber belt conveyor (2), a size storage tank (6) communicated with the size mixing tank is arranged on one side of the size mixing tank (3), the size storage tank (6) is lower than the size mixing tank (3), and the problem that the size mixing process is unstable and the size mixing tank is influenced by the fact that the size mixing tank is too large in liquid level fluctuation due to discontinuous operation of the filter presses is solved.
Description
Technical Field
The invention belongs to the field of ore dressing and metallurgical mines, and particularly relates to an ore pulp filter pressing and filter cake size mixing system.
Background
In the prior art, two general arrangement modes of an ore pulp filter pressing and filter cake size mixing system are provided, wherein one mode is that the ore pulp filter pressing is arranged in parallel, each filter pressing machine is provided with a rubber belt conveyor and a size mixing tank, and the size mixing tank is provided with an ore pulp conveying pump for conveying ore pulp to a subsequent process; the other type is that the filter presses are arranged in parallel, each filter press is provided with a belt conveyor, a plurality of belt conveyors arranged in parallel convey filter cakes to a shared belt conveyor, and the filter cakes are conveyed to a size mixing tank through the shared belt conveyor. The main problems of the existing filter pressing and filter cake size mixing arrangement are as follows: (1) because the filter press is in discontinuous operation, no filter cake is produced during the feeding period of the filter press, and the concentration of the slurry mixing is low; during the unloading period of the filter press, the filter cake amount is large, the pulp mixing concentration is high, and even the phenomenon of pressing a tank occurs, so that the equipment operation is unstable, the pulp mixing concentration fluctuation is large, and adverse effects are brought to subsequent operation; (2) the filter press and the belt which are arranged in parallel share one rubber belt conveyor and a size mixing system, the filter cake conveying distance is long, and if the filter cake conveying and size mixing link fails, the whole line is stopped; (3) the ore pulp after size mixing is directly conveyed to the subsequent working procedure from the size mixing tank through a conveying pump, the conveying amount and the working process are unstable, and the stability of the subsequent working process is influenced.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: the utility model provides an ore pulp filter-pressing and filter cake size mixing system, solves because of the filter press is interrupted the operation and leads to the unstable and size mixing groove liquid level fluctuation too big problem of the influence that produces the size mixing process of transferring.
(II) technical scheme
In order to solve the technical problem, the invention provides an ore pulp filter pressing and filter cake size mixing system, which comprises: the device comprises a plate-and-frame filter press 1, a belt conveyor 2, a size mixing tank 3 and a size storage tank 6;
the number of the plate-and-frame filter presses 1 is set to be even, every two plate-and-frame filter presses 1 are horizontally arranged at intervals, a belt conveyor 2 is arranged below each plate-and-frame filter press 1, a size mixing tank 3 is arranged below the space between every two horizontally arranged plate-and-frame filter presses 1, filter cakes are conveyed into the size mixing tank 3 through the belt conveyor 2, a size storage tank 6 communicated with the size mixing tank 3 is arranged on one side of the size mixing tank 3, and the size storage tank 6 is lower than the size mixing tank 3;
in the slurry mixing process, one of the two horizontally arranged platen frame filter presses 1 feeds and the other unloads, and the operation is staggered.
Wherein, every two horizontally arranged plate-and-frame filter presses 1, the belt conveyor 2 below the plate-and-frame filter press 1 and the size mixing tank 3 arranged in the middle of the two plate-and-frame filter presses 1 are arranged as a filter pressing and size mixing series;
the size mixing system comprises a plurality of filter pressing and size mixing series which are arranged in parallel, and a size storage tank 6 is arranged between the size mixing tanks 3 of two adjacent filter pressing and size mixing series.
Wherein, two adjacent thick liquid storage tank 6 are through the pipeline intercommunication, are equipped with the knife gate valve on the pipeline.
Wherein, the size mixing tank 3 is connected with the size storage tank 6 through a communicating pipe 5.
Wherein, a size mixing water inlet 8 is arranged on one side of the top of the size mixing tank 3 and is connected with a size mixing water pipeline 7.
And a filter cake discharging hopper 4 is arranged between the rubber belt conveying end part of the rubber belt conveyor 2 and the top of the size mixing groove 3.
And the bottom of the pulp storage tank 6 is provided with a delivery pump 9 for outputting ore pulp outwards through the pulp storage tank 6.
Wherein, the concentration in the size mixing tank 3 in each filter pressing and size mixing series is controlled to be 22-28 percent;
when the pulp in the size mixing grooves 3 in the adjacent series flows into the pulp storage groove 6, the pulp concentration is neutralized again in the pulp storage groove 6, and the concentration is controlled to be 24% -26%.
(III) advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1) because the filter presses are in discontinuous operation of feeding and discharging, two filter presses are configured to be longitudinally arranged in a straight line to form a series, one filter press feeds and the other filter press discharges in the operation process, and the two filter presses in the same series are in staggered operation, so that the stability of filter cakes entering a size mixing tank is realized, the size mixing concentration and the stability of the size mixing process are further ensured, and the configuration number of the size mixing tanks is reduced;
2) a pulp storage tank is arranged behind the size mixing tanks, and two adjacent series of size mixing tanks share one pulp storage tank, so that on one hand, the pulp of different size mixing tanks can be further uniformly mixed in the pulp storage tank, the stability of size mixing concentration is ensured, on the other hand, the stability of pulp conveying is ensured, and the influence of liquid level fluctuation of the size mixing tanks on the stability of size mixing and operation processes is avoided;
3) the adjacent slurry storage tanks are connected by using a pipeline, so that the stability of the slurry amount among different slurry storage tanks is ensured, and the phenomenon that the slurry storage tanks overflow or are evacuated is avoided;
4) the same series of filter presses and the slurry storage tanks are organically unified, and different series of slurry mixing tanks and slurry storage tanks are mutually independent, so that the problem that the normal operation of other equipment is influenced due to the fault of a certain link is avoided, and the continuity and the stability of production are ensured.
Drawings
FIG. 1 is a top view of the system of the present invention;
FIG. 2 is a cross-sectional view of the system of the present invention.
Detailed Description
In order to make the objects, contents, and advantages of the present invention clearer, the following detailed description of the embodiments of the present invention will be made in conjunction with the accompanying drawings and examples.
In order to solve the above problems, the present invention provides a system for filter pressing of ore pulp and size mixing of filter cake, as shown in fig. 1-2, comprising: the device comprises a plate-and-frame filter press 1, a belt conveyor 2, a size mixing tank 3 and a size storage tank 6;
the number of the plate-and-frame filter presses 1 is set to be even, every two plate-and-frame filter presses 1 are horizontally arranged at intervals, a belt conveyor 2 is arranged below each plate-and-frame filter press 1, a size mixing tank 3 is arranged below the space between every two horizontally arranged plate-and-frame filter presses 1, filter cakes are conveyed into the size mixing tank 3 through the belt conveyor 2, a size storage tank 6 communicated with the size mixing tank 3 is arranged on one side of the size mixing tank 3, and the size storage tank 6 is lower than the size mixing tank 3;
in the slurry mixing process, one of the two horizontally arranged platen frame filter presses 1 feeds and the other unloads, and the operation is staggered.
Wherein, every two horizontally arranged plate-and-frame filter presses 1, the belt conveyor 2 below the plate-and-frame filter press 1 and the size mixing tank 3 arranged in the middle of the two plate-and-frame filter presses 1 are arranged as a filter pressing and size mixing series;
the size mixing system comprises a plurality of filter pressing and size mixing series which are arranged in parallel, and a size storage tank 6 is arranged between the size mixing tanks 3 of two adjacent filter pressing and size mixing series.
Wherein, two adjacent thick liquid storage tank 6 are through the pipeline intercommunication, are equipped with the knife gate valve on the pipeline.
Wherein, the size mixing tank 3 is connected with the size storage tank 6 through a communicating pipe 5.
Wherein, a size mixing water inlet 8 is arranged on one side of the top of the size mixing tank 3 and is connected with a size mixing water pipeline 7.
And a filter cake discharging hopper 4 is arranged between the rubber belt conveying end part of the rubber belt conveyor 2 and the top of the size mixing groove 3.
And the bottom of the pulp storage tank 6 is provided with a delivery pump 9 for outputting ore pulp outwards through the pulp storage tank 6.
Wherein, the concentration in the size mixing tank 3 in each filter pressing and size mixing series is controlled to be 22-28 percent;
when the pulp in the size mixing grooves 3 in the adjacent series flows into the pulp storage groove 6, the pulp concentration is neutralized again in the pulp storage groove 6, and the concentration is controlled to be 24% -26%.
Example 1
The valuable metals in the ground ore are extracted by adopting a stirring leaching process, and in order to ensure the water balance of a system, the ore grinding link needs to be removed by water before stirring leaching. The ore pulp meeting the requirement of the granularity is thickened to 50-55% by a thickener before leaching, then the ground ore water is further removed by using a plate-and-frame filter press, then the high-copper raffinate returned in the subsequent process links is used for size mixing, further the water balance of the system is ensured, and in order to ensure the stability of the size mixing and conveying processes of the ore pulp, the filter pressing and size mixing process of the hydrometallurgy plant adopts the ore pulp filter pressing and filter cake size mixing system.
The wet metallurgy plant has a design processing capacity of 3000t/d (125 t/h), and 6 filter pressing links before leaching are 700m2Each filter press is provided with a belt conveyer with the width of 1.2 m. Every 2 of 6 filter presses and belt conveyors are longitudinally arranged to form a series, a stainless steel size mixing tank with the diameter of 5 multiplied by 5.5m and the material of 316L is arranged in the middle, 3 series are formed by the shape of a common filter press and 3 series are arranged in parallel; the water content of a filter cake obtained by filter pressing is 15-18%; each size mixing tank is provided with a size mixing water inlet, the factory uses high copper raffinate to perform filter cake size mixing, and the consumption of the high copper raffinate in each size mixing tank is 98-139 m3The slurry mixing concentration is ensured to be 22-28%; two stainless steel slurry storage tanks with the diameter of 5 multiplied by 5.5m and the material of 316L are arranged in the middle of the three series, the slurry mixing tank and the slurry storage tanks are connected by a stainless steel pipeline of DN400, and the middle of the three series is provided with a knife gate valve; the two slurry storage tanks are connected by a stainless steel pipeline of DN400, the middle of the slurry storage tanks is provided with a knife gate valve, and when the liquid level of one slurry storage tank is too high, the slurry can automatically flow to the other slurry storage tank, so that the running stability of the slurry storage tanks is ensured; each pulp storage tank is provided with one-used and one-prepared two acid-resistant slurry pumps for conveying the pulp after pulp mixing to the stirring and leaching link. The invention obviously reduces the fluctuation range of the pulp mixing concentration, the pulp concentration of the pulp mixing tank fluctuates within the range of 22-28%, the pulp concentration of the pulp storage tank is 24-26%, the pulp mixing concentration is stable, and favorable conditions are created for subsequent links; and the phenomenon of groove pressing or overflowing of a pulp adjusting groove or a pulp storing groove does not occur, so that the production continuity and the field operation environment are ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an ore pulp filter-pressing and filter cake size mixing system which characterized in that, it includes: a plate-and-frame filter press (1), a belt conveyor (2), a size mixing tank (3) and a size storage tank (6);
the filter press comprises plate-frame filter presses (1), wherein the number of the plate-frame filter presses (1) is even, every two plate-frame filter presses (1) are horizontally arranged at a certain interval, a rubber belt conveyor (2) is arranged below each plate-frame filter press (1), a size mixing tank (3) is arranged below the space between every two horizontally arranged plate-frame filter presses (1), filter cakes are conveyed into the size mixing tank (3) through the rubber belt conveyor (2), a size storage tank (6) communicated with the size mixing tank is arranged on one side of the size mixing tank (3), and the size storage tank (6) is lower than the size mixing tank (3);
in the slurry mixing process, one of the two horizontally arranged platen frame filter presses (1) feeds materials and the other unloads materials, and the operations are staggered.
2. The system for size mixing according to claim 1, characterized in that every two horizontally arranged plate-and-frame filter presses (1), the belt conveyor (2) below the plate-and-frame filter press (1) and the size mixing tank (3) arranged in the middle of the two plate-and-frame filter presses (1) are arranged in a filter pressing and size mixing series;
the size mixing system comprises a plurality of filter pressing and size mixing series which are arranged in parallel, and a size storage tank (6) is arranged between two adjacent size mixing tanks (3) of the filter pressing and size mixing series.
3. The mixing system according to claim 2, characterized in that the adjacent two stock chest (6) are communicated with each other through a pipeline, and a knife gate valve is arranged on the pipeline.
4. The system according to claim 1, characterized in that the connection between the size mixing tank (3) and the size storage tank (6) is via a communicating pipe (5).
5. The system of claim 1, characterized in that one side of the top of the size mixing tank (3) is provided with a size mixing water inlet (8) connected with a size mixing water pipeline (7).
6. A mixing system according to claim 1, characterized in that a filter cake discharge hopper (4) is arranged between the belt conveying end of the belt conveyor (2) and the top of the mixing tank (3).
7. The system according to claim 1, characterized in that the bottom of the stock chest (6) is provided with a delivery pump (9) for delivering the slurry out through the stock chest (6).
8. The system according to claim 2, characterized in that the concentration in the size mixing tank (3) in each filter-pressing and size mixing series is controlled between 22% and 28%;
when the ore pulp in the size mixing tanks (3) in the adjacent series flows into the pulp storage tank (6), the concentration of the ore pulp is neutralized again in the pulp storage tank (6) and is controlled to be 24-26%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534396.8A CN113082803A (en) | 2021-05-17 | 2021-05-17 | Ore pulp filter-pressing and filter cake size mixing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110534396.8A CN113082803A (en) | 2021-05-17 | 2021-05-17 | Ore pulp filter-pressing and filter cake size mixing system |
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| Publication Number | Publication Date |
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| CN113082803A true CN113082803A (en) | 2021-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110534396.8A Pending CN113082803A (en) | 2021-05-17 | 2021-05-17 | Ore pulp filter-pressing and filter cake size mixing system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191102800A (en) * | 1911-02-03 | 1912-01-18 | Charles Washington Merrill | Improvements in Filter Presses. |
| CN105016592A (en) * | 2015-08-05 | 2015-11-04 | 浙江绩丰岩土技术股份有限公司 | Slurry recycling circulation system and slurry recycling method thereof |
| CN204897676U (en) * | 2015-08-05 | 2015-12-23 | 浙江绩丰岩土技术股份有限公司 | Mud recycle circulation system |
| CN107445182A (en) * | 2017-08-28 | 2017-12-08 | 中国铝业股份有限公司 | A kind of Liquor of Ore Dressing Bayer process matches somebody with somebody calcium method |
| CN206965589U (en) * | 2017-05-03 | 2018-02-06 | 长春黄金研究院 | A kind of automatic size mixing device of gold industry tailings containing cyanogen |
| CN208809593U (en) * | 2018-09-25 | 2019-05-03 | 天津华景化工新技术开发有限公司 | A kind of calcium ammonium nitrate production calcium nitrate solution press filteration system |
| CN215137228U (en) * | 2021-05-17 | 2021-12-14 | 万宝矿产有限公司 | Ore pulp filter-pressing and filter cake size mixing system |
| CN216585137U (en) * | 2021-04-28 | 2022-05-24 | 中国瑞林工程技术股份有限公司 | Configuration of pre-leaching filtration workshop in mineral aggregate wet process |
-
2021
- 2021-05-17 CN CN202110534396.8A patent/CN113082803A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191102800A (en) * | 1911-02-03 | 1912-01-18 | Charles Washington Merrill | Improvements in Filter Presses. |
| CN105016592A (en) * | 2015-08-05 | 2015-11-04 | 浙江绩丰岩土技术股份有限公司 | Slurry recycling circulation system and slurry recycling method thereof |
| CN204897676U (en) * | 2015-08-05 | 2015-12-23 | 浙江绩丰岩土技术股份有限公司 | Mud recycle circulation system |
| CN206965589U (en) * | 2017-05-03 | 2018-02-06 | 长春黄金研究院 | A kind of automatic size mixing device of gold industry tailings containing cyanogen |
| CN107445182A (en) * | 2017-08-28 | 2017-12-08 | 中国铝业股份有限公司 | A kind of Liquor of Ore Dressing Bayer process matches somebody with somebody calcium method |
| CN208809593U (en) * | 2018-09-25 | 2019-05-03 | 天津华景化工新技术开发有限公司 | A kind of calcium ammonium nitrate production calcium nitrate solution press filteration system |
| CN216585137U (en) * | 2021-04-28 | 2022-05-24 | 中国瑞林工程技术股份有限公司 | Configuration of pre-leaching filtration workshop in mineral aggregate wet process |
| CN215137228U (en) * | 2021-05-17 | 2021-12-14 | 万宝矿产有限公司 | Ore pulp filter-pressing and filter cake size mixing system |
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