CN201485491U - Slag washing system in cobalt wet process smelting - Google Patents
Slag washing system in cobalt wet process smelting Download PDFInfo
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- CN201485491U CN201485491U CN2009201904686U CN200920190468U CN201485491U CN 201485491 U CN201485491 U CN 201485491U CN 2009201904686 U CN2009201904686 U CN 2009201904686U CN 200920190468 U CN200920190468 U CN 200920190468U CN 201485491 U CN201485491 U CN 201485491U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a slag washing system in cobalt wet process smelting, which aims to solve the problems that the traditional slag washing device adopts a filter press and has the disadvantages of low slag washing efficiency, complex labor, high intensity and large influence of artificial factors. The utility model adopts the technical scheme that the slag washing system comprises a filter press and is characterized in that after being connected in parallel, washing devices at all stages in a multistage washing device are connected with the filter press in series through a water inlet manifold and a water outlet manifold; a filtrate intermediate tank and a slag washing water intermediate tank are connected on the water outlet manifold and positioned in front of the multistage washing device; the washing device at each stage comprises a wash water trough and a wash water pump; a reflux valve is mounted between the water outlet manifold and each wash water trough; a water inlet valve is mounted between the water inlet manifold and each wash water pump; and reflux valves are respectively arranged among the filtrate intermediate tank, the slag washing water intermediate tank and the water outlet manifold. The utility model improves the slag washing effect and can achieve full-automatic control, continuous operation and high production efficiency and minimize human factors.
Description
Technical field
The utility model relates to washery slag equipment, the washery slag system in specifically a kind of cobalt hydrometallurgy industry.
Background technology
The hydrometallurgy of cobalt concentrate generally all is to leach with sulfuric acid, realizes liquid-solid separation with pressure filter, and solution is as the raw material of next process, and slag forms a blob of slag.The water ratio of a blob of slag 〉=25%, and it is higher to contain cobalt in the leach liquor, for reaching high casting yield 〉=95% of cobalt, needs that scrapping of slag formulated the strict cobalt that contains and scraps standard.For reaching the standard of scrapping of slag, need the leach liquor in the blob of slag is washed out.
Traditional washery slag method is single trough washery slag method, after soon slag is discharged into the washery slag groove, adds new water and stirs, and then through the pressure filter press filtration, repeatedly several times, up to the qualified discharging of slag.The each operation of this washery slag method all needs to unload pressure filter, and Jia Xinshui stirs to beat and spares, press filtration again, and the washery slag efficient of pressure filter is low, and the workman works loaded down with trivial details, the intensity height, the human factor influence is big.In addition,,, need solve expansible water, increase the cost of cobalt hydrometallurgy like this by heavy cobalt so water body expansion is obvious owing to need add to the new water of pressure filter at every turn.
The utility model content
Technical problem to be solved in the utility model is to overcome the defective that above-mentioned prior art exists, washery slag system in a kind of improved cobalt hydrometallurgy is provided, it reduces working strength of workers and number of workers in order to improve washery slag efficient, reduces artifical influence factor.
For this reason, the utility model adopts following technical scheme: the washery slag system in a kind of cobalt hydrometallurgy, comprise pressure filter, it is characterized in that connecting with pressure filter by a water inlet manifold and an outfall sewer after the washing device parallel connections at different levels in the multistage washing device, an one filtrate medial launder and a slag washing water medial launder are connected on the outfall sewer and are positioned at the front of multistage washing device, every grade of washing device comprises a wash water groove and a wash water pump, between outfall sewer and each the wash water groove return valve is housed, between water inlet manifold and each the wash water pump inlet valve is housed, also respectively is provided with return valve between filtrate medial launder and slag washing water medial launder and the outfall sewer.
The utility model filters ore pulp with pressure filter earlier, and filtrate enters the filtrate medial launder, filtrate is pumped in the filtrate storage tank simultaneously; With multistage washing device the filter residue in the pressure filter is carried out countercurrent washing then, washing devices at different levels in the multistage washing device are worked successively, the washing water that the slag washing water that obtains after the back one-level washing device washing is used as the previous stage washing device, the last step washing device is washed with new, the slag washing water that first step washing device obtains pumps in the slag washing water medial launder, then the slag washing water in the slag washing water medial launder is pumped in the slag washing water storage tank.The principle of countercurrent washing is, with the highest washing of concentration of metal ions for the first time, what concentration was low slightly washes for the second time, by that analogy, with new washing, reaches with the minimum water yield at last, washes out the purpose of qualified slag.
When first step washing device is opened, open the return valve of slag washing water medial launder, close the return valve of filtrate medial launder; When all the other washing devices were opened, the wash water pump pumped into the water in the wash water groove in the water inlet manifold, and opens the return valve of previous stage washing device, closed the return valve that is positioned at all preceding washing devices of previous stage washing device.The washing water that the slag washing water of realizing obtaining after will back one-level washing device washing by above-mentioned concrete operations step is used as the previous stage washing device.
As the further of technique scheme improved and replenish, the utility model is taked following technical measures:
Above-mentioned washery slag system, the progression of washing device is three to six grades, is preferably six grades, and six grades washery slag effect is best, and water consumption is minimum, and only finishing to washing, slag dumping from dnockout needs three hours, and wash water consumption and solids ratios can be less than 1: 1; Containing the valency metal in the slag after the washing can be less than 0.1%.
Above-mentioned washery slag system by the work of automatic controlling system washing devices at different levels and pressure filter, realizes the purpose of full-automatic washery slag.
Above-mentioned washery slag system, a squeezing tank is connected the back and connects with pressure filter with a pump.After washery slag finishes, filter residue in the pressure filter is carried out the hydraulic pressure squeezing, squeeze used water and be stored in the squeezing tank, carry out the circulation of water by pump, residual slag washing water in the pressure filter is pressed in the penultimate stage washing device, has further improved metal recovery rate.
Above-mentioned washery slag system, described pressure filter has four and in parallel, and pressure filter also can replace with other liquid-solid separation equipment.When many pressure filter are worked simultaneously, need to increase self-acting valve on the pressure filter, self-acting valve is proper with pneumatic diaphragm start and stop valve, the manual operation of pneumatic diaphragm start and stop valve band, and when automatic system goes wrong, can manual operation, do not influence production.When many pressure filter were worked simultaneously, plant factor was higher, and washery slag efficient is higher, the wash water consumption still less, labor strength is low, can realize continuous mass production with fewer equipment, and is energy-conservation, efficient.
Utilize the utility model to carry out washery slag, have following beneficial effect:
1, reduced water consumption, water consumption and solids ratios can reduce water consumption to 1/6 of conventional washing method less than 1: 1, have avoided the water body expansion of system;
2, improve the washery slag effect, reduced metal content in the slag of washing back (can less than 0.1%); Improved metal recovery rate;
3, equipment is simple, and the construction period is short, and is easy to operate.
4, can realize full automatic control, operate continuously, the production efficiency height has reduced working strength of workers and number of workers, and the washery slag operating process is strictly regulated, and human factor is reduced to minimum.
The utility model is described in further detail below in conjunction with specification drawings and specific embodiments.
Description of drawings
Fig. 1 is an equipment drawing of the present utility model.
Fig. 2 is a process flow sheet of the present utility model.
Embodiment
The utility model now has been used for Zhejiang Province Huayou cobalt industry Co., Ltd and has produced the 2000T cobalt per year, the copper cobalt concentrate leached mud of 6000T copper project, the pressure wash heat slag processing that removes scum.Adopt the pressure filter of four parallel connections to handle leached mud and remove scum in the production, handle slag 〉=160T every day.
Pressure filter adopts 300 square meter scape Tianjin full automatic pressure filters, comprising: automatic filter wash cloth, automated manners such as plate are unloaded in squeezing automatically automatically.The self-acting valve that is contained on the pressure filter is selected pneumatic diaphragm start and stop valve for use.The ore pulp pump is selected flow 100m for use
3The ore pulp submerged pump of/h, lift 50m.The wash water pump is selected flow 35m for use
3The Ordinary Centrifugal Pumps of/h, lift 70m.
Ore pulp contains consolidates 〉=20%, ore pulp pump charging stopping pressure 4MP, feed time 30～40min.The 5MP that keep-ups pressure during washery slag pump washery slag, washery slag time 1.5h.The new water that the washery slag last step is used is steam condensate.A last blob of slag is moisture≤and 25%, contain cobalt≤0.13%, cupric≤0.5%.Unload the about 8～10T of slag of one 300 square meter pressure filter.1 ton of water of wash water consumption/ton slag.4 pressure filter only need workman's operation.
As shown in Figure 1, connect with pressure filter after the washing device parallel connections at different levels in six grades of washing devices, pressure filter 10 is connected with washing devices at different levels with an outfall sewer 13 by a water inlet manifold 12, filtrate medial launder 2 and slag washing water medial launder 3 are connected on the outfall sewer and are positioned at the front of first step washing device, every grade of washing device comprises a wash water groove and a wash water pump, be provided with return valve between outfall sewer and each the wash water groove, between water inlet manifold and each the wash water pump inlet valve is housed, also respectively is provided with return valve between filtrate medial launder 2 and slag washing water medial launder 3 and the outfall sewer 13.Squeezing tank 11 is connected the back with squeezing water pump 1 and connects with pressure filter.Set the start-stop time to washing device according to the washery slag time, by the work of automatic controlling system washing devices at different levels, when the previous stage washing device quit work automatically, back one-level washing device was opened automatically.
Working process of the present utility model is as follows: ore pulp is pumped in the pressure filter 10, and filtrate enters filtrate medial launder 2, with pump 22 filtrate is pumped in the filtrate storage tank (not shown) simultaneously; After slag is pressed onto the pressure filter setting pressure in the pressure filter, automatically stop into ore pulp (not shown), close the return valve 21 of filtrate medial launder 2, open the return valve 31 of slag washing water medial launder 3, other return valves are closed, and the wash water in the first step wash water groove 4 is pumped into, wash for the first time, wash Hou Shui and enter in the slag washing water medial launder 3, open pump 32 operations simultaneously, the slag washing water in the slag washing water medial launder 3 is pumped into slag washing water storage tank (not shown); After wash water in the first step wash water groove 4 runs out of, close the return valve 31 of slag washing water medial launder 3, open the return valve 41 of first step wash water groove 4, simultaneously the wash water in the second stage wash water groove 5 is pumped into, wash for the second time, wash water enters in the first step wash water groove 4; After wash water in the second stage wash water groove 5 runs out of, close the return valve 41 of first step wash water groove 4, open the return valve of second stage wash water groove 5, simultaneously the wash water in the third stage wash water groove 6 is pumped into, wash for the third time, wash water enters in the wash water groove of the second stage; After wash water in the third stage wash water groove runs out of, close the return valve 51 of second stage wash water groove 5, open the return valve 61 of third stage wash water groove 6, simultaneously the wash water in the fourth stage wash water groove 7 is pumped into, wash the 4th time, wash water enters in the third stage wash water groove 6; After wash water in the fourth stage wash water groove 7 runs out of, close the return valve 61 of third stage wash water groove 6, open the return valve 71 of fourth stage wash water groove 7, simultaneously the wash water in the level V wash water groove 8 is pumped into, wash the 5th time, wash water enters in the fourth stage wash water groove 7; After wash water in the level V wash water groove 8 runs out of, close the return valve 71 of fourth stage wash water groove 7, open the return valve 81 of level V wash water groove 8, simultaneously the wash water in the 6th grade of wash water groove 9 is pumped into, wash the 6th time, wash water enters in the level V wash water groove 8; Simultaneously steam condensate is pumped into to get ready in the 6th grade of wash water groove 9 once and use, after more than operation is finished, open squeezing water pump 11, squeezing used water is stored in the squeezing tank 1, carry out the circulation of water by pump, residual slag washing water in the pressure filter 10 is pressed in the level V wash water groove 8, and whole washery slag process is promptly finished.
Claims (7)
1. the washery slag system in the cobalt hydrometallurgy, comprise pressure filter, it is characterized in that connecting with pressure filter by a water inlet manifold and an outfall sewer after the washing device parallel connections at different levels in the multistage washing device, an one filtrate medial launder and a slag washing water medial launder are connected on the outfall sewer and are positioned at the front of multistage washing device, every grade of washing device comprises a wash water groove and a wash water pump, between outfall sewer and each the wash water groove return valve is housed, between water inlet manifold and each the wash water pump inlet valve is housed, also respectively is provided with return valve between filtrate medial launder and slag washing water medial launder and the outfall sewer.
2. washery slag according to claim 1 system, the progression that it is characterized in that washing device is three to six grades.
3. washery slag according to claim 2 system, the progression that it is characterized in that washing device is six grades.
4. according to claim 2 or 3 described washery slag systems, it is characterized in that work by automatic controlling system washing devices at different levels and pressure filter.
5. washery slag according to claim 4 system is characterized in that described pressure filter has four and in parallel, is equipped with self-acting valve on this pressure filter.
6. washery slag according to claim 5 system is characterized in that described self-acting valve selects pneumatic diaphragm start and stop valve for use.
7. according to claim 2 or 3 described washery slag systems, it is characterized in that a squeezing tank is connected with a pump then to connect with pressure filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201904686U CN201485491U (en) | 2009-07-30 | 2009-07-30 | Slag washing system in cobalt wet process smelting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201904686U CN201485491U (en) | 2009-07-30 | 2009-07-30 | Slag washing system in cobalt wet process smelting |
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| CN201485491U true CN201485491U (en) | 2010-05-26 |
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| CN2009201904686U Expired - Lifetime CN201485491U (en) | 2009-07-30 | 2009-07-30 | Slag washing system in cobalt wet process smelting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527116A (en) * | 2012-01-11 | 2012-07-04 | 浙江华友钴业股份有限公司 | Washing method of cobalt hydroxide slurry |
-
2009
- 2009-07-30 CN CN2009201904686U patent/CN201485491U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102527116A (en) * | 2012-01-11 | 2012-07-04 | 浙江华友钴业股份有限公司 | Washing method of cobalt hydroxide slurry |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |