CN1334348A - Agitator bath for pre-treating refractory As-containing gold ore by impregnating in strong alkali solution - Google Patents
Agitator bath for pre-treating refractory As-containing gold ore by impregnating in strong alkali solution Download PDFInfo
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- CN1334348A CN1334348A CN00110679A CN00110679A CN1334348A CN 1334348 A CN1334348 A CN 1334348A CN 00110679 A CN00110679 A CN 00110679A CN 00110679 A CN00110679 A CN 00110679A CN 1334348 A CN1334348 A CN 1334348A
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- stirring impeller
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- 239000010931 gold Substances 0.000 title claims abstract description 74
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 74
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003513 alkali Substances 0.000 title abstract description 11
- 230000004087 circulation Effects 0.000 claims abstract description 27
- 238000003756 stirring Methods 0.000 claims description 51
- 229910052785 arsenic Inorganic materials 0.000 claims description 46
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 46
- 238000002386 leaching Methods 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 29
- 239000002002 slurry Substances 0.000 claims description 14
- 238000013019 agitation Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 2
- 238000007654 immersion Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 15
- 230000003647 oxidation Effects 0.000 description 14
- 238000007254 oxidation reaction Methods 0.000 description 14
- 230000008569 process Effects 0.000 description 8
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 description 6
- 239000011707 mineral Substances 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000001580 bacterial effect Effects 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000036632 reaction speed Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010013082 Discomfort Diseases 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- VJRVSSUCOHZSHP-UHFFFAOYSA-N [As].[Au] Chemical compound [As].[Au] VJRVSSUCOHZSHP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052964 arsenopyrite Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004137 mechanical activation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004089 microcirculation Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- CDBAKLRDFBGJOX-UHFFFAOYSA-K sodium arsenate Chemical compound [Na+].[Na+].[Na+].[O-][As]([O-])([O-])=O CDBAKLRDFBGJOX-UHFFFAOYSA-K 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
An agitator bath for pretreating refractory As-contained gold ore by forced immersion in alkali solution is composed of electric motor, agitating propeller, drive axle and bath body. It features that said bath body has a jetting cover plate with inverted-cone central hole for forcing annular circulation, and on the inner surface of said bath body there are three layers of 4-6 inclined plates for forcing the turbulent circulation. Its advantages are stable running, simple structure and high effect on speeding up chemical reaction.
Description
The invention relates to mechanical equipment for carrying out intensified alkaline leaching pretreatment on refractory gold ores containing arsenic and the like, in particular to an intensified stirring tank for converting the refractory gold ores into easily leached gold ores, which is provided for recovering gold from the refractory gold ores containing arsenic and the like.
The recovery of gold in refractory gold ores is a worldwide problem, and the reserves of the gold account for 60 percent of the total reserves of gold in the world. This gold must be pretreated to recover it. Currently, several pretreatment methods are commercially successfully used in the world: an oxidation roasting method (600-700 ℃) is available abroad; a pressure oxidation method (an acid method: 180-245 ℃, 1800-2200 KPa; an alkali method: 100 ℃, 1000-2000 KPa); bacterial oxidation methods, and the like. The methods have large investment and difficult management, and the national introduction of several degrees of plans is unsuccessful due to the discomforts of the country. Only the roasting method has practical application in China, but the equipment and the process are backward, the environmental pollution is serious, and the recovery rate of gold is low.
The conventional common stirring tank has a linear velocity of 3-4 m/s generally, and cannot pretreat arsenic-containing refractory gold ore at normal temperature and normal pressure, because the conventional stirring tank does not have intensified ore pulp circulation to cause intensified turbulence and strong circulation jet flow, cannot intensify diffusion, cannot break an intensified diffusion interface layer, cannot effectively oxidize arsenic minerals, cannot fully dissociate and expose gold, and has low gold recovery rate. The method comprises the steps of performing alkaline leaching pretreatment on arsenic-containing refractory gold ore (containing 3-15% of arsenic and 60g/t of gold) by using a traditional common stirring tank at normal temperature and normal pressure, wherein the recovery rate of directly cyaniding and leaching gold is only 9-40%, the dearsenization rate in 24 hours is about 50%, and after the common alkaline leaching pretreatment, cyaniding is performed for 24 hours, the recovery rate of gold is less than 20-80%, and the recovery rate of gold is low. Aiming at the defects, a novel process technology for extracting gold by using arsenic-containing refractory gold ore through normal-temperature normal-pressure intensified alkaline leaching pretreatment is developed for metals, and the process technology has independent intellectual property rights. Chinese patents 98113812.8 and ZL 96225373.1.
The invention aims to provide an enhanced alkaline leaching and dearsenization stirring tank matched with an enhanced alkaline leaching process of arsenic-containing and sulfur-containing refractory gold ore disclosed in the invention patent 98113812.8 of China and an efficient and energy-saving tower type milling and leaching machine disclosed in the patent ZL96225373.1 of China, which can efficiently and quickly pre-treat the arsenic-containing and sulfur-containing refractory gold ore at normal temperature and normal pressure, so that a high gold recovery rate can be obtained by recycling through a cyanidation method.
The invention provides a stirring tank for strengthening alkaline leaching pretreatment of arsenic-containing refractory gold ores, which consists of a motor (2), a transmission shaft (5) driving and connecting a stirring impeller (9), and a tank body (8) supporting a transmission part bracket (16); the trough body (8) is provided with a vent pipe (7), a slurry discharge pipe (11), a slurry outlet pipe (13) and a slurry inlet pipe (15), and the bottom of the trough body (8) is provided with a seat board (10); a transmission shaft (5) connected with a stirring impeller (9) is positioned in the center of the tank body; a 600-800 mm gap is formed between the stirring impeller (9) and the seat plate (10); the motor (2), the spindle box and the transmission shaft (5) are all vertically arranged, and the stirring impeller (9) is arranged at the lowest part of the transmission shaft (5); the method is characterized in that: an annular forced circulation jet grouting cover plate (14) is connected with the inner side of the upper part of the tank body (8) and the tank wall, and an opening in the middle is of an inverted cone structure; forced turbulence circulation plates (12) are arranged on the inner side wall of the lower tank body (8) of the forced circulation jet grouting cover plate (14), the forced turbulence circulation plates (12) are divided into 1-3 layers, 4-6 pieces of each layer are uniformly distributed around the tank body (8) at intervals, and an inclination angle of 60-75 degrees is formed between each piece of forced turbulence circulation plate (12) and the vertical direction. This structure can suppress pulp lifting, resulting in strong vortex turbulence.
The motor can drive the transmission shaft (5) through the belt pulley (3), and the linear speed of the stirring impeller is 12-15 m/s. The electric motor (2) may be a continuously variable electric motor.
The stirring impeller (9) is composed of a blade body (17), a blade root (18) and blades (19), wherein the blades (19) are connected with the blade root (18) through bolts, the lift angle of the blades (18) is 25-35 degrees, the blade body (17) is of a squarestructure with a shaft head, and the blade root (18) is inserted into a groove in the blade body (17) and welded and formed.
A sleeve (20) is arranged between the stirring impeller (9) and the transmission shaft (5), and the sleeve (20) is respectively and tightly nested with the stirring impeller (19) and the two ends of the transmission shaft (5) and then connected by bolts. Thus, the sleeve (20) and the stirring impeller (9) can be replaced simply when needed after long-term use.
The stirring blade plate (9) adopts a rotating mode of lifting ore pulp upwards. The method is essentially different from the rotation mode of downward mud jacking adopted by the stirring impeller of the traditional common stirring tank.
The vent pipe (7) is composed of a bent pipe (21), a movable cover (22), a connecting body (23), a pin shaft (24), a cotter pin (25) and a fixing plate (26). The structure ensures smooth ventilation, and the ventilation pipe is not blocked when the machine is stopped for a long time, so that the ventilation can be smoothly realized.
The seat board (10) is of a square structure and plays a role in protecting the bottom board of the tank body. When the cavitation erosion, the abrasion and the corrosion reach a certain degree, the seat plate can be simply replaced.
The slurry discharge pipe and the slurry inlet pipe provided by the invention are tubular structures with valves. The slurry outlet pipe is connected by wheel pipes, and the retention volume of the slurry in the tank body can be controlled by adjusting the height of the wheel pipes, namely the pretreatment retention time of the arsenic-containing refractory gold ore can be adjusted.
When the arsenic-removing desulfurization device runs, a motor (2) drives a stirring impeller at the lower end of a transmission shaft (5) to rotate at a high speed in a clockwise direction through belt pulley deceleration, a vent pipe (7) is used for ventilating, and ore pulp in a stirring tank forms a gas-liquid-solid three-phase mixed state in a stirring state, the ore pulp forms strong turbulent eddy rotary circulation motion under the condition that the stirring impeller (9) is strongly stirred and under the combined action of introduced air, a forced turbulent circulation plate (12) and a forced circulation jet grouting cover plate (14), the lifted ore pulp forms large circulation turbulent eddy motion from inside to outside from bottom to top by taking a central transmission shaft as the center, and countless local micro-circulations which are the same as the large circulation direction of turbulent eddy are formed along the tank body at different heights along the axial direction due to the forced circulation action of the forced turbulent circulation plate (12) and the forced circulation jet grouting cover plate, so that the intensity of turbulent eddy motion is further enhanced and the diffusion effect is greatly increased, and the arsenic-removing desulfurization reaction speed ①, ② and ③ controlled by diffusion is greatly accelerated in the radial direction.
Then Na2S2O3And Na3AsS3Is cyanided to Na2SO4And Na3AsO4. Gas-liquid-solid intense turbulence ore pulp, because of the action of intense turbulence, the diffusion boundary layer of reaction is beatenBroken OH-And O2Can quickly reach FeAsS and FeS through the interface layer2On the surface, the resultant can also pass through the interface layer rapidly, so that the ore pulp under certain particle size distribution is the ore grinding grading product desulfurization reaction of the high-efficiency energy-saving tower type grinding and leaching machine. Can be performed quickly and sufficiently.
After the arsenic-containing refractory gold ore is ground by a high-efficiency energy-saving tower type grinding and leaching machine, the ore pulp with a certain particle size distribution is pretreated for 24 hours at normal temperature and normal pressure by the method, the dearsenification rate can reach 95%, and the gold cyanidation recovery rate reaches 93-98.5%.
However, the conventional ordinary agitation tank cannot form the mechanism of strong turbulence of the ore pulp, so that the dearsenification and desulfurization reaction cannot be effectively carried out, and the gold in the arsenic-containing refractory gold ore cannot be effectively recovered.
In a word, the invention can carry out the intensified alkaline leaching pretreatment on the arsenic-containing refractory gold ore at normal temperature and normal pressure, so that the arsenic-containing refractory gold ore is converted into the easily leached gold ore, the arsenic conversion rate is high, the gold leaching rate is high, and the invention has the remarkable characteristics of high efficiency, simple structure, stable operation, convenient operation and maintenance and the like. The utility model discloses a can be used to the refractory gold ore of preliminary treatment gold arsenic, also can be used to strengthen the chemical reaction who receives diffusion process control for chemical reaction speed saves reaction time, shortens process flow length, saves the investment. The invention combines 98113812.1 arsenic-containing refractory gold ore enhanced alkali leaching gold technology and ZL96225373.1 high-efficiency energy-saving tower type milling and leaching machine, and the enhanced alkali leaching pretreatment is carried out on the arsenic-containing and sulfur-containing refractory gold ore at normal temperature and normal pressure, and compared with a roasting oxidation method, a pressure thermal oxidation method and a bacterial oxidation method, the investment for factory building is saved by 70%, and the production cost is saved by 40%. Has the characteristics of least investment, lowest production cost, simplest management and operation, no toxicity, no pollution and no explosion danger; the gold recovery rate is superior to that of roasting oxidation method and bacterial oxidation method, and the gold recovery rate is equivalent to that of the hot oxidation method under the same pressure. The present invention will be described in detail below by way of examples with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of an arsenic-containing refractory gold ore enhanced alkaline leaching pretreatment stirring tank;
FIG. 2 is a schematic structural view of a stirring impeller;
FIG. 3 is a schematic structural view of a spindle box;
FIG. 4 is a schematic view of a coupling sleeve structure of a transmission shaft and a stirring impeller;
fig. 5 is a schematic view of a vent pipe structure.
Examples
As shown in figure 1, the phi 2500 x 3000 arsenic-containing refractory gold ore reinforced alkaline leaching pretreatment stirring tank mainly comprises a power system, a transmission system, a bracket, a tank body and a stirring impeller. The power system comprises two parts, namely an electric motor 2 and a bracket 1 with adjustable tensioning degree. The motor is an eight-pole motor. The transmission system consists of a belt pulley 3, a belt pulley 3', a belt 4, a transmission shaft 5 and a spindle box 6. The main spindle box is provided with a support structure for preventing the vertical position shifting and a vertical slurry prevention sealing measure, and the specific structure is shown in figure 3. The power system and the transmission system are both vertically arranged and are positioned on the bracket 16, and the transmission shaft is positioned in the center of the stirring tank body 8. The stirring impeller connected with the transmission shaft by adopting a sleeve structure (see figure 4) is positioned below the transmission shaft 5, and a clearance of 600-800 mm is formed between the stirring impeller 9 and the bottom of the tank body 8. The stirring impeller 9 is composed of a blade body 17, a blade root 18 and blades 19, wherein 4 blades 19 and 4 blade roots 18 are connected through bolts, and the specific structure is shown in figure 2. The trough 8 is provided with a seat plate 10, a slurry discharge pipe 11, a forced turbulence circulating plate 12, a slurry outlet pipe 13, a forced circulation jet grouting cover plate 14, a slurry inlet pipe 15 and a vent pipe 7. The forced circulation cover plates are uniformly distributed along the same direction with the opening angle of the blades in an inclined mode and are divided into an upper layer and a lower layer, 4 blocks are distributed on each layer, and the upper layer and the lower layer are distributed at intervals. The forced circulation jet grouting cover plate is of an inverted cone structure with a central opening, and the size of the central opening is 200mm larger than the diameter of the stirring impeller. The vent pipe 7 extends to the bottom of the tank along the inner wall of the tank body 8, extends to the center of the lower part of the stirring impeller after circular arc transition and mainly comprises a bent pipe 21, a movable cover 22, a connecting body 23, a pin shaft 24, a cotter pin 25 and a fixing plate 26. When the device works, air is firstly introduced into the stirring tank along the air pipe, then the motor is started, the motor drives the transmission shaft to rotate through belt pulley transmission, so that the stirring impeller connected with the transmission shaft rotates at a high speed of 12-15 m/s, ore pulp in the stirring tank performs strong turbulent eddy large circulation operation from inside to outside in the circumferential direction from bottom to top and then from top to bottom under the combined action of introduced air, the stirring impeller, the forced turbulent circulation plate and the forced circulation jet compression cover plate, and the large circulation motion consists of countless small turbulent eddies which are the same as the large circulation direction of the turbulent eddy in the radial directions of different heights. At the moment, NaOH or CaO is added into the groove, the arsenic-containing refractory gold ore can be rapidly and efficiently dearsenized at normal temperature and normal pressure, the arsenic-containing refractory gold ore can be converted into the refractory gold ore in a short time, and the refractory gold ore is recycled by a cyanidation method, so that the high gold recovery rate can be obtained.
The method comprises the steps of performing intensified alkali leaching pretreatment on gold concentrate containing arsenic and refractory flotation in Jilin Huichun, Liaoning Dandong, Liaoning Fengcheng, Liaoning Liaoyang, Xinjiang Ashi and the like by using a pair of phi 2500X 3000 arsenic-containing refractory gold ore intensified alkali leaching stirring tanks 1 to obtain high arsenic removal conversion rate and high gold cyanidation recovery rate, wherein the arsenic removal rate is about 95%, the gold cyanidation recovery rate is as high as 93-98.5%, the recoveryrate of gold cyanidation without intensified alkali leaching pretreatment is less than 9-40%, and research results are shown in Table 1.
When the mechanical activation and strengthening action of the invention is used for treating arsenic-containing refractory gold ore, the difference of the oxidation rates of arsenic and sulfur minerals can be effectively utilized, namely, the arsenic minerals are preferentially and rapidly oxidized, so that the normal cyaniding leaching of gold is not influenced, and the oxidation rate of the sulfur minerals is more than 1 time lower than that of the arsenic minerals, thus the 'skeleton structure' of original particles after the pretreatment is finished is maintained, and the particle size change before and after the pretreatment is not large, as shown in Table 1. The method is favorable for the post-pre-recovery operation of gold, and has great superiority compared with the defects that secondary gold coating is easily caused by roasting oxidation, secondary leaching is difficult, and sulfur and arsenic minerals are not selectively oxidized by a pressure thermal oxidation method and a bacterial oxidation method.
At present, an efficient energy-saving tower type mill-leaching machine ZL96225373.1 and an arsenic refractory gold ore reinforced alkali leaching gold process 98113812.1 are combined by adopting an arsenic refractory gold ore reinforced alkali leaching pretreatment stirring tank and combining Chinese patents, and the stirring tank is built in places such as Liaoning Fengcheng, Liaoning Liaoyang, Xinjiang Ashi and the like10 ton/day, 30 ton/day, 100 ton/day arsenic-containing refractory gold ore normal temperature normal pressure intensified alkali leaching pretreatment-cyaniding gold extraction new process industryAnd (5) chemically demonstrating the production line. The invention and Chinese patent ZL96225373.1 and 98113812.1 can provide an efficient extraction technology for arsenic-containing refractory gold ore, which has the advantages of simple process, small investment, no pollution, low gold recovery rate, low production cost and easy management and operation, and can be used for effectively recovering arsenic-containing refractory gold ore. TABLE 1 result of study on treatment of refractory arsenic-containing ores using pretreatment tank for enhanced alkaline leaching of refractory arsenic-containing ores
Claims (7)
1. A stirring tank for the pretreatment of refractory arsenic-containing gold ore by using intensified alkaline leaching consists of a motor (2), a transmission shaft (5) driving and connecting a stirring impeller (9), and a tank body (8) supporting a transmission part bracket (16); the trough body (8) is provided with a vent pipe (7), a slurry discharge pipe (11), a slurry outlet pipe (13) and a slurry inlet pipe (15), and the bottom of the trough body (8) is provided with a seat board (10); a transmission shaft (5) connected with a stirring impeller (9) is positioned in the center of the tank body; a 600-800 mm gap is formed between the stirring impeller (9) and the seat plate (10); the motor (2), the spindle box and the transmission shaft (5) are all vertically arranged, and the stirring impeller (9) is arranged at the lowest part of the transmission shaft (5); the method is characterized in that: an annular forced circulation jet grouting cover plate (14) is connected with the inner side of the upper part of the tank body (8) and the tank wall, and an opening in the middle is of an inverted cone structure; forced turbulence circulating plates (12) are arranged on the inner side wall of a lower tank body (8) of the forced circulation jet grouting cover plate (14), the forced turbulence circulating plates (12) are divided into 1-3 layers, 4-6 pieces of each layerare uniformly distributed around the tank body (8) at intervals, and an inclination angle of 60-75 degrees is formed between each piece of forced turbulence circulating plate (12) and the vertical direction;
2. the agitation tank for the intensified alkaline leaching pretreatment of the arsenic-containing refractory gold ore according to claim 1, characterized in that: the motor drives the transmission shaft (5) through the belt pulley (3), and the linear speed of the stirring impeller is 12-15 m/s. .
3. The agitation tank for the intensified alkaline leaching pretreatment of the arsenic-containing refractory gold ore according to claim 1, characterized in that: the stirring impeller (9) is composed of a blade body (17), a blade root (18) and blades (19), the blades (19) are connected with the blade root (18) through bolts, the lift angle of the blades (18) is 25-35 degrees, the blade body (17) is of a square structure with a shaft head, and the blade root (18) is inserted into a groove in the blade body (17) and welded and formed.
4. The agitation tank for the intensified alkaline leaching pretreatment of the arsenic-containing refractory gold ore according to claim 1, characterized in that: a sleeve (20) is arranged between the stirring impeller (9) and the transmission shaft (5), and the sleeve (20) is respectively and tightly nested with the stirring impeller (19) and the two ends of the transmission shaft (5) and then connected by bolts.
5. The agitation tank for the intensified alkaline leaching pretreatment of the arsenic-containing refractory gold ore according to claim 1, characterized in that: the stirring blade plate (9) adopts a rotating mode of lifting ore pulp upwards.
6. The agitation tank for the intensified alkaline leaching pretreatment of the arsenic-containing refractory gold ore according to claim 1, characterized in that: the vent pipe (7) is composed of a bent pipe (21), a movable cover (22), a connecting body (23), a pin shaft (24), a cotter pin (25) and a fixing plate (26).
7. The agitation tank for pretreatment of refractory arsenic-bearing gold ore by alkaline leaching according to claim 1 or 2, wherein: the motor (2) is a stepless speed change motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001106791A CN1139665C (en) | 2000-07-19 | 2000-07-19 | Agitator bath for pre-treating refractory As-containing gold ore by impregnating in strong alkali solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001106791A CN1139665C (en) | 2000-07-19 | 2000-07-19 | Agitator bath for pre-treating refractory As-containing gold ore by impregnating in strong alkali solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1334348A true CN1334348A (en) | 2002-02-06 |
| CN1139665C CN1139665C (en) | 2004-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001106791A Expired - Fee Related CN1139665C (en) | 2000-07-19 | 2000-07-19 | Agitator bath for pre-treating refractory As-containing gold ore by impregnating in strong alkali solution |
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| CN (1) | CN1139665C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545273C (en) * | 2006-05-10 | 2009-09-30 | 中国科学院金属研究所 | A kind of gold-extraction process that contains the cyaniding tailing of original sulfides parcel gold |
| CN102580616A (en) * | 2012-03-02 | 2012-07-18 | 云南冶金集团股份有限公司 | Horizontal pressurized reaction vessel |
| CN104789454A (en) * | 2015-04-23 | 2015-07-22 | 张家港市科华化工装备制造有限公司 | Efficiently oxygenating biological fermentation tank |
| CN104789455A (en) * | 2015-04-23 | 2015-07-22 | 张家港市科华化工装备制造有限公司 | Efficient biological fermentation tank |
| CN105296760A (en) * | 2015-11-19 | 2016-02-03 | 四川长虹电器股份有限公司 | Metal recycling reaction device and metal recycling method thereof |
| CN106929671A (en) * | 2017-05-03 | 2017-07-07 | 中南大学 | A kind of method and device for controlling current potential reinforcing leaching gold |
| CN108728640A (en) * | 2018-06-12 | 2018-11-02 | 灵宝金源矿业股份有限公司 | A kind of recovery process of arsenic-containing sulphur-containing type Gold |
| CN113023779A (en) * | 2021-02-07 | 2021-06-25 | 吉安德和钨业有限公司 | Alkaline leaching equipment for oxidized material |
-
2000
- 2000-07-19 CN CNB001106791A patent/CN1139665C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100545273C (en) * | 2006-05-10 | 2009-09-30 | 中国科学院金属研究所 | A kind of gold-extraction process that contains the cyaniding tailing of original sulfides parcel gold |
| CN102580616A (en) * | 2012-03-02 | 2012-07-18 | 云南冶金集团股份有限公司 | Horizontal pressurized reaction vessel |
| CN104789454A (en) * | 2015-04-23 | 2015-07-22 | 张家港市科华化工装备制造有限公司 | Efficiently oxygenating biological fermentation tank |
| CN104789455A (en) * | 2015-04-23 | 2015-07-22 | 张家港市科华化工装备制造有限公司 | Efficient biological fermentation tank |
| CN105296760A (en) * | 2015-11-19 | 2016-02-03 | 四川长虹电器股份有限公司 | Metal recycling reaction device and metal recycling method thereof |
| CN106929671A (en) * | 2017-05-03 | 2017-07-07 | 中南大学 | A kind of method and device for controlling current potential reinforcing leaching gold |
| CN106929671B (en) * | 2017-05-03 | 2019-01-08 | 中南大学 | A kind of control current potential strengthens the method and device of leaching gold |
| CN108728640A (en) * | 2018-06-12 | 2018-11-02 | 灵宝金源矿业股份有限公司 | A kind of recovery process of arsenic-containing sulphur-containing type Gold |
| CN108728640B (en) * | 2018-06-12 | 2019-10-15 | 灵宝金源矿业股份有限公司 | A kind of recovery process of arsenic-containing sulphur-containing type Gold |
| CN113023779A (en) * | 2021-02-07 | 2021-06-25 | 吉安德和钨业有限公司 | Alkaline leaching equipment for oxidized material |
| CN113023779B (en) * | 2021-02-07 | 2023-03-10 | 吉安德和钨业有限公司 | Alkaline leaching equipment for oxidized material |
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