CN107824345B - Efficient ore pulp desliming equipment and desliming method - Google Patents
Efficient ore pulp desliming equipment and desliming method Download PDFInfo
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- CN107824345B CN107824345B CN201711319972.7A CN201711319972A CN107824345B CN 107824345 B CN107824345 B CN 107824345B CN 201711319972 A CN201711319972 A CN 201711319972A CN 107824345 B CN107824345 B CN 107824345B
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Abstract
The invention provides high-efficiency ore pulp desliming equipment and a desliming method, wherein the high-efficiency ore pulp desliming equipment comprises a support and multi-stage cleaning desliming barrels arranged on the support, each stage of cleaning desliming barrel comprises an outer barrel with a cone bottom at the bottom and an overflow groove at the top, an inner barrel is arranged in the outer barrel, the bottom of the inner barrel is communicated with the cone bottom of the outer barrel through supporting legs arranged at intervals, ore pulp inlets are arranged on the inner barrel and the outer barrel, the cone bottom of the outer barrel is provided with an ore pulp outlet, the bottom of the overflow groove is provided with a muddy water outlet, and the high-efficiency ore pulp desliming equipment is characterized in that the inner barrel of each stage of cleaning desliming barrel is provided with a small-upper and a big-lower closed cone, the bottoms of the closed cones are communicated with the cone bottom of the outer barrel through supporting blocks arranged at intervals, and ore pulp inlets on the inner barrel and the outer barrel are arranged into a mineral inlet pipe, and the inner end of the mineral inlet pipe penetrates through the wall of the outer barrel and the inner barrel tangentially stretches into the inner barrel. The desliming effect is good, the mineral recovery rate and the enrichment ratio are high, the energy consumption is low, the cost is low, and no pollution is caused.
Description
Technical Field
The invention relates to mineral separation treatment equipment, in particular to gravity concentration pretreatment equipment, which is suitable for cleaning and separating metal minerals such as placer, rock gold, tungsten-tin ore, ilmenite, sulfide ores such as lead, zinc, copper and antimony, oxidized ores and tailings, and belongs to the technical field of gravity concentration equipment.
Technical Field
With the gradual exhaustion of mineral resources and the importance of the country on environmental protection, how to treat tailings left by mineral separation for decades, how to reduce the mineral separation cost of difficult mineral separation and how to efficiently select useful components in the tailings is a problem facing the current mineral separation industry. When the tailings are treated by adopting the conventional gravity separation process and equipment, the problems and the defects of single function, long mineral separation flow, large occupied area, low automation degree, low mineral separation efficiency, poor energy efficiency and the like exist, and the method is especially suitable for difficult mineral separation and almost no means for tailings.
Therefore, in order to adapt to mineral development, and simultaneously respond to national energy conservation and emission reduction, comprehensive utilization of resources, reduction of chemical agent consumption, reduction of chemical agent pollution and carbon dioxide emission, it is necessary to cut in from difficult mineral dressing and tailings, develop equipment capable of effectively improving the tailings sorting efficiency, and realize win-win of environmental protection and economic growth.
Disclosure of Invention
In order to overcome and reinforce the defects of the conventional gravity separation mineral separation equipment, the invention provides the metal ore pulp efficient desliming equipment and the desliming method which are used as an intermediate unit of a mineral separation assembly line and can separate and wash heavy metal minerals and earth impurities in a layered manner by utilizing the comprehensive sedimentation cyclone separation principle that heavy metal minerals in ore pulp fluid are easy to sediment and small density media are suspended and rise.
The invention is realized by the following technical scheme: the utility model provides a high-efficient ore pulp desliming equipment, including the support, locate the multistage washing desliming bucket on the support, each level washs the desliming bucket all includes the outer bucket of bottom tape taper end, top peripheral tape overflow launder, be equipped with interior bucket in the outer bucket, the bottom of this interior bucket communicates with outer bucket taper end through the stabilizer blade that the interval set up, in, all be equipped with the ore pulp entry on the outer bucket, outer bucket taper end is equipped with the ore pulp export, overflow launder tank bottom is equipped with the muddy water export, all be equipped with little upper and lower big seal cone in the interior bucket of each level washs the desliming bucket, seal the piece and communicate with outer bucket taper end through the interval set up in the cone bottom, interior, ore pulp entry on the outer bucket is put into the ore deposit pipe, the inner of this ore deposit pipe passes outer bucket wall, interior bucket wall tangential stretch into in the interior bucket. So that ore pulp containing 80-300 meshes of small-sized particle minerals is tangentially fed into an inner barrel through an ore feeding pipe, a rotational flow is formed between the inner barrel and a closed cone, most ore particles in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone and then sink to the cone bottom of an outer barrel under the action of self weight along the inner wall of the inner barrel and the outer wall of the closed cone, a small amount of residual fine-sized particle minerals and muddy water overflow into the outer barrel, the fine-sized particle minerals continuously sink to the cone bottom due to the rapid flow velocity reduction in the outer barrel, the ore dressing yield is further improved, meanwhile, the muddy water continuously overflows out of the outer barrel to an overflow groove, finally, the mineral at the cone bottom of the outer barrel enters a next-stage cleaning desliming barrel through an ore pulp outlet for continuous desliming, and finally, the separation of the finished minerals and the mud is finished.
The top end of the inner barrel is 5-20cm higher than the top ends of the outer barrel and the overflow groove, so that the sinking height of the granular minerals in overflow is increased, and the sludge separation efficiency is improved.
The top end of the closed cone is 5-20cm lower than the top end of the inner barrel, and the closed cone is used for relieving vortex generated in the center of slurry, improving desliming effect and stabilizing liquid level.
The ore pulp inlets are at least symmetrically arranged two, each ore pulp inlet is provided with an ore inlet pipe, the ore pulp inlets and the ore inlet pipes are arranged at the upper parts of the inner barrel and the outer barrel, and at least one water supplementing cleaning port is arranged at the lower part of the outer barrel and is connected with the water supplementing pipe, so that most ore particles in the ore pulp tangentially enter the inner barrel and are impacted against the inner wall of the inner barrel and the outer wall of the closed cone and then are subjected to further desliming under the action of self gravity in the process of sinking along the inner wall of the inner barrel and the outer wall of the closed cone by the upward water rinsing supplemented by the lower part.
The ore pulp outlet of the upper-stage cleaning desliming barrel is connected with the ore pulp inlet of the lower-stage cleaning desliming barrel so as to carry out multistage desliming.
The mud water outlet separation stage of the upper-stage cleaning desliming barrel is connected with the ore pulp inlet of the lower-stage cleaning desliming barrel, so that useful minerals in mud water are further washed, and the mineral recovery rate is improved.
The invention discloses a method for ore pulp desliming based on the efficient ore pulp desliming equipment, which comprises the following steps:
1) Feeding ore pulp containing 80-300 mesh medium-small particle minerals into an inner barrel of a first-stage cleaning desliming barrel tangentially through an ore pulp conveying main pipe, a branch pipe and an ore feeding pipe;
2) The ore pulp in the step 1) forms a rotational flow between the inner barrel and the closed cone of the first-stage cleaning desliming barrel, so that most ore particles in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone and sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity; the rest small amount of fine particle ore and muddy water overflows upwards into the outer barrel, and the fine particle ore continuously sinks into the cone bottom due to the sudden drop of the flow velocity in the outer barrel; the muddy water continuously overflows the outer barrel to an overflow groove of the first-stage cleaning desliming barrel;
3) The minerals at the cone bottom of the outer barrel in the step 2) enter the inner barrel of the second-stage cleaning desliming barrel through the ore pulp outlet, a rotational flow is formed between the inner barrel and the closed cone, most of the mineral grains in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone, and sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity and are sent to the next working procedure through a pipeline; the muddy water continuously overflows the outer barrel to an overflow groove of the second-stage cleaning desliming barrel;
4) The mud water of the overflow groove of the first-stage cleaning desliming barrel in the step 2) is sent into the inner barrel of the third-stage cleaning desliming barrel through a mud water outlet and a pipeline separator (namely, skipping over the second-stage cleaning desliming barrel) through a pulp inlet and a mineral inlet pipe, forms rotational flow between the inner barrel and a closed cone, so that fine mineral particles in the rotational flow collide with the inner barrel inner wall and the outer wall of the closed cone, sink to the cone bottom of the outer barrel along the inner barrel inner wall and the outer wall of the closed cone under the action of self gravity, then enter the inner barrel of the fourth-stage cleaning desliming barrel through a pulp outlet, and are sent to the next working procedure through the pulp outlet and the pipeline after the same wall collision and sedimentation are completed; the muddy water continuously overflows from the outer barrel to overflow grooves of the third-stage cleaning desliming barrel and the fourth-stage cleaning desliming barrel, and is discharged into a sedimentation tank for sedimentation through a pipeline;
5) The mud water in the overflow groove of the second-stage cleaning desliming barrel in the step 3) is sent into the inner barrel of the fourth-stage cleaning desliming barrel through the mud water outlet of the groove bottom and the pipeline separation stage (namely, skipping the third-stage cleaning desliming barrel) through the ore pulp inlet and the ore feeding pipe, a rotational flow is formed between the inner barrel and the closed cone, fine ore particles in the rotational flow are impacted on the inner wall of the inner barrel and the outer wall of the closed cone, and then sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity, and are sent to the next working procedure through the ore pulp outlet and the pipeline; the muddy water continuously overflows from the outer barrel to an overflow groove of a fourth-stage cleaning desliming barrel, and is discharged into a sedimentation tank for sedimentation through a pipe;
6) And 5) returning the settled upper water to each stage of cleaning desliming barrel through each water supplementing pipe and each water supplementing cleaning port through pipelines to participate in mud cleaning, thereby improving the recovery rate of minerals, reducing the water consumption and not discharging mud water.
The invention has the following advantages and effects: by adopting the scheme, ore pulp containing 80-300 meshes of small-sized and medium-sized ore can be conveniently fed into the inner barrel tangentially through the ore feeding pipe, a rotational flow is formed between the inner barrel and the closed cone, most ore particles in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone and then sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self weight, a small amount of residual fine-sized ore and muddy water overflow into the outer barrel, the fine-sized ore continuously sinks to the cone bottom due to the rapid flow velocity drop in the outer barrel, the ore dressing yield is further improved, meanwhile, the muddy water continuously overflows into the overflow groove, and finally is discharged through a muddy water outlet at the bottom of the overflow groove, and the ore at the cone bottom of the outer barrel enters into the next stage of cleaning desliming barrel through the ore pulp outlet to continuously desliming, and finally the separation of the finished ore and the mud is finished. The invention removes the sediment impurities in the ore pulp by gravity classification and washing, the removal rate reaches 60% -80%, the energy is saved, the emission of harmful substances is reduced, the equipment structure is reasonable and compact, the loss of parts is effectively reduced, and the service life of the equipment is prolonged; the applicability is strong, various minerals can be washed and desliming, and the efficiency of the mineral separation system is obviously improved; the desliming effect is good, the mineral recovery rate and the enrichment ratio are high, meanwhile, the desliming process does not add any additive, belongs to natural treatment, does not pollute the environment, and the washing water can be recycled after being precipitated, so that the process has the advantages of low energy consumption, low cost, no pollution, wide application range and the like.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention with the stent removed;
FIG. 3 is a schematic view of a cleaning desliming barrel;
fig. 4 is a side view of fig. 3.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
The invention provides high-efficiency metal ore pulp desliming equipment, which comprises a bracket 1, four stages of cleaning desliming barrels 2 arranged on the bracket 1, as shown in figure 1, each stage of cleaning desliming barrel 2 comprises an outer barrel 22 with a conical bottom 23 at the bottom and an overflow groove 21 at the periphery at the top, an inner barrel 27 is arranged in the outer barrel 22, the bottom of the inner barrel 27 is communicated with the conical bottom 23 of the outer barrel 22 through supporting legs 271 arranged at intervals, ore pulp inlets 28 are arranged on the inner barrel and the outer barrel, ore pulp outlets 25 are arranged on the conical bottom 23 of the outer barrel 22, and two muddy water outlets 211 are symmetrically arranged at the bottom of the overflow groove 21, wherein: the inner barrel 27 of each stage of cleaning desliming barrel 2 is provided with a closed cone 24 with a small upper part and a large lower part, the bottom of the closed cone 24 is communicated with the cone bottom 23 of the outer barrel 22 through supporting blocks 241 which are arranged at intervals, ore pulp inlets 28 on the inner barrel 27 and the outer barrel 22 are arranged in ore inlet pipes 281, and the inner ends of the ore inlet pipes 281 penetrate through the walls of the outer barrel 22 and the inner barrel 27 and tangentially extend into the inner barrel 27, as shown in fig. 3 and 4;
the top end of the inner barrel 27 is 5-20cm higher than the top ends of the outer barrel 22 and the overflow groove 21, so as to increase the sinking height of the granular minerals in the overflow and improve the sludge separation efficiency; the top end of the closed cone 24 is 5-20cm lower than the top end of the inner barrel 27, and is used for relieving vortex generated in the center of slurry, improving desliming effect and stabilizing liquid level; the pulp inlets 28 are at least two symmetrically arranged, each pulp inlet 28 is provided with an ore inlet pipe 281, the pulp inlets 28 and the ore inlet pipes 281 are arranged at the middle upper part of the inner barrel 27 and the outer barrel 22, two water supplementing cleaning ports 26 are symmetrically arranged at the lower part of the outer barrel 22, and the water supplementing cleaning ports 26 are connected with the water supplementing pipes 261, so that most of ore particles in the pulp enter the inner barrel 27 tangentially and then collide with the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 under the action of self gravity, and are rinsed by water which is supplemented from the lower part and flows upwards in the sinking process along the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 so as to be further desliming;
as shown in fig. 2, the ore inlet pipe 281 of the ore pulp inlet 28 of the first-stage cleaning and desliming barrel is connected with the ore pulp conveying header 283 through a branch pipe 282, the ore pulp outlet 25 is connected with the ore inlet pipe 281 of the ore pulp inlet 28 of the second-stage cleaning and desliming barrel through a pipeline so as to carry out secondary desliming, and the ore pulp outlet 25 of the second-stage cleaning and desliming barrel is sent to the next process through the pipeline 251;
the overflow of the overflow tank 21 of the first-stage cleaning and desliming barrel is connected with the ore pulp inlet 28 of the third-stage cleaning and desliming barrel through a muddy water outlet 211 and a pipeline 212 in a separation way (namely, skipping over the second-stage cleaning and desliming barrel), so that the overflow of the first-stage cleaning and desliming barrel is sent into the inner barrel 27 of the third-stage cleaning and desliming barrel, useful minerals in muddy water are further washed, and the washed minerals are sent to the fourth-stage cleaning and desliming barrel through the ore pulp outlet 25, the pipeline and the ore pulp inlet for washing, and then are sent to the next working procedure through the ore pulp outlet and the pipeline 252;
the overflow of the overflow groove of the second-stage cleaning desliming barrel is connected with the ore pulp inlet 28 of the fourth-stage cleaning desliming barrel through a muddy water outlet 211 and a pipeline 212 in a separation way, so that the overflow of the second-stage cleaning desliming barrel is sent into the inner barrel 27 of the fourth-stage cleaning desliming barrel, useful minerals in muddy water are further washed, and the washed minerals are sent to the next working procedure through the ore pulp outlet 25 and the pipeline 252;
after the overflows of the overflow tanks of the third-stage cleaning desliming barrel and the fourth-stage cleaning desliming barrel are discharged through a muddy water outlet 211, the overflows are sent to a sedimentation tank (not shown in the figure) through a pipeline 29 to be settled, and water at the upper part of the sedimentation tank is returned to each stage of cleaning desliming barrel through a water supplementing pipe 261 and a water supplementing cleaning port 26 respectively through a pipeline 291 to participate in the mud cleaning, so that the mineral recovery rate is improved, the water consumption is reduced, and muddy water is not discharged.
The method for carrying out ore pulp desliming based on the efficient ore pulp desliming device comprises the following steps:
1) Feeding ore pulp containing 80-300 mesh small-sized particle minerals into an inner barrel 27 of a first-stage cleaning desliming barrel tangentially through an ore pulp conveying main 283, a branch pipe 282 and an ore feeding pipe 281;
2) The ore pulp in the step 1) forms a rotational flow between the inner barrel 27 and the closed cone 24 of the first-stage cleaning desliming barrel, so that most ore particles in the rotational flow collide with the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 and sink to the cone bottom 23 of the outer barrel 22 along the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 under the action of self gravity; the rest small amount of fine particle ore and muddy water overflows upwards into the outer barrel 22, and the fine particle ore continuously sinks into the cone bottom 23 due to the sudden drop of the flow velocity in the outer barrel 22; the muddy water continuously overflows the outer barrel 22 to the overflow groove 21 of the first-stage cleaning desliming barrel;
3) Minerals at the cone bottom 23 of the outer barrel 22 in the step 2) enter an inner barrel 27 of a second-stage cleaning desliming barrel through a pulp outlet 25, a rotational flow is formed between the inner barrel 27 and a closed cone 24, most of the mineral grains in the rotational flow collide with the inner wall of the inner barrel 27 and the outer wall of the closed cone 24, and then sink to the cone bottom 23 of the outer barrel 22 along the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 under the action of self gravity, and are sent to the next working procedure through a pipeline 251; the muddy water continuously overflows the outer barrel 22 to the overflow groove 21 of the second-stage cleaning desliming barrel;
4) The mud water of the overflow groove 21 of the first-stage cleaning desliming barrel in the step 2) is separated by a mud water outlet 211 and a pipeline 212 at the bottom (namely, skipping over the second-stage cleaning desliming barrel), is sent into an inner barrel 27 of the third-stage cleaning desliming barrel through a pulp inlet 28 and a mineral inlet pipe 281, forms rotational flow between the inner barrel 27 and a closed cone 24, so that fine mineral particles in the rotational flow collide with the inner wall of the inner barrel 27 and the outer wall of the closed cone 24, then sink to the cone bottom 23 of the outer barrel 22 along the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 under the action of self gravity, and then enter into the inner barrel 27 of the fourth-stage cleaning desliming barrel through a pulp outlet 25, and after the same wall collision and sedimentation are completed, the fine mineral particles in the rotational flow are sent to the next process through the pulp outlet 25 and the pipeline 252; the muddy water continuously overflows the outer barrel 22 to the overflow groove 21 of the third and fourth stage cleaning desliming barrels, and is discharged into a sedimentation tank for sedimentation through a pipeline 29;
5) The mud water in the overflow groove 21 of the second-stage cleaning desliming barrel in the step 3) is sent into the inner barrel 27 of the fourth-stage cleaning desliming barrel through the mud water outlet 211 at the bottom of the groove and the pipeline 212 for separation (namely, skipping over the third-stage cleaning desliming barrel) through the ore pulp inlet 28 and the ore inlet pipe 281, a rotational flow is formed between the inner barrel 27 and the closed cone 24, fine ore particles in the rotational flow collide with the inner wall of the inner barrel 27 and the outer wall of the closed cone 24, and then sink to the cone bottom 23 of the outer barrel 22 along the inner wall of the inner barrel 27 and the outer wall of the closed cone 24 under the action of self gravity, and are sent to the next working procedure through the ore pulp outlet 25 and the pipeline 252; the muddy water continuously overflows the outer barrel 22 to the overflow groove 21 of the fourth-stage cleaning desliming barrel, and is discharged into a sedimentation tank for sedimentation through a pipeline 29;
6) The upper water after sedimentation in the step 5) is returned to each stage of cleaning desliming barrel through the water supplementing pipes 261 and the water supplementing cleaning ports 26 respectively through the pipelines 291 to participate in mud cleaning, thereby improving the recovery rate of minerals, reducing the water consumption and not discharging mud water.
Claims (2)
1. The efficient ore pulp desliming method is characterized by comprising the following steps of:
1) Feeding ore pulp containing 80-300 mesh medium-small particle minerals into an inner barrel of a first-stage cleaning desliming barrel tangentially through an ore pulp conveying main pipe, a branch pipe and an ore feeding pipe;
2) The ore pulp in the step 1) forms a rotational flow between the inner barrel and the closed cone of the first-stage cleaning desliming barrel, so that most ore particles in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone and sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity; the rest small amount of fine particle ore and muddy water overflows upwards into the outer barrel, and the fine particle ore continuously sinks into the cone bottom due to the sudden drop of the flow velocity in the outer barrel; the muddy water continuously overflows the outer barrel to an overflow groove of the first-stage cleaning desliming barrel;
3) The minerals at the cone bottom of the outer barrel in the step 2) enter the inner barrel of the second-stage cleaning desliming barrel through the ore pulp outlet, a rotational flow is formed between the inner barrel and the closed cone, most of the mineral grains in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone, and sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity and are sent to the next working procedure through a pipeline; the muddy water continuously overflows the outer barrel to an overflow groove of the second-stage cleaning desliming barrel;
4) The mud water of the overflow groove of the first-stage cleaning desliming barrel in the step 2) is sent into the inner barrel of the third-stage cleaning desliming barrel through a mud water outlet and a pipeline separator of the tank bottom, is sent into the inner barrel of the third-stage cleaning desliming barrel through a pulp inlet and a mineral inlet pipe, forms a rotational flow between the inner barrel and a closed cone, and after fine mineral particles in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone, the fine mineral particles sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity, and then enter the inner barrel of the fourth-stage cleaning desliming barrel through a pulp outlet, and after the same wall collision and sedimentation are completed, the fine mineral particles are sent to the next working procedure through the pulp outlet and the pipeline; the muddy water continuously overflows from the outer barrel to overflow grooves of the third-stage cleaning desliming barrel and the fourth-stage cleaning desliming barrel, and is discharged into a sedimentation tank for sedimentation through a pipeline;
5) The mud water in the overflow groove of the second-stage cleaning desliming barrel in the step 3) is sent into the inner barrel of the fourth-stage cleaning desliming barrel through a mud water outlet at the bottom of the groove, a pipeline separator and a pulp inlet and a mineral inlet pipe, a rotational flow is formed between the inner barrel and a closed cone, fine mineral grains in the rotational flow collide with the inner wall of the inner barrel and the outer wall of the closed cone, and then sink to the cone bottom of the outer barrel along the inner wall of the inner barrel and the outer wall of the closed cone under the action of self gravity, and are sent to the next working procedure through the pulp outlet and the pipeline; the muddy water continuously overflows from the outer barrel to an overflow groove of a fourth-stage cleaning desliming barrel, and is discharged into a sedimentation tank for sedimentation through a pipe;
6) And 5) returning the settled upper water to each stage of cleaning desliming barrel through each water supplementing pipe and each water supplementing cleaning port through pipelines to participate in mud cleaning, thereby improving the recovery rate of minerals, reducing the water consumption and not discharging mud water.
2. The desliming device of the high-efficient ore pulp desliming method as claimed in claim 1, including the support, locate the multistage wash desliming bucket on the support, each stage wash desliming bucket includes the bottom and takes the cone bottom, top peripheral band overflow launder's outer bucket, there is an inner bucket in the outer bucket, the bottom of this inner bucket communicates with cone bottom of the outer bucket through the support leg that sets up at intervals, there are ore pulp inlets on the inner and outer buckets, there are ore pulp outlets on the cone bottom of the outer bucket, the overflow launder tank bottom has mud outlets, characterized by that there are small upper, big lower closed cones in the inner bucket of each stage wash desliming bucket, the closed cone bottom communicates with cone bottom of the outer bucket through the support block that sets up at intervals, the ore pulp inlet on the inner and outer bucket is put into the ore pipe, the inner end of this ore pipe extends into the inner bucket tangentially through the wall of the outer bucket;
the top end of the inner barrel is 5-20cm higher than the top end of the outer barrel and the overflow groove;
the top end of the closed cone is 5-20cm lower than the top end of the inner barrel;
the ore pulp inlets are symmetrically arranged at least two, each ore pulp inlet is provided with an ore inlet pipe, the ore pulp inlets and the ore inlet pipes are arranged at the middle upper parts of the inner barrel and the outer barrel, and at least one water supplementing cleaning port is arranged at the lower part of the outer barrel and connected with the water supplementing pipes;
the ore pulp outlet of the upper-stage cleaning desliming barrel is connected with the ore pulp inlet of the lower-stage cleaning desliming barrel;
the mud water outlet separation stage of the upper-stage cleaning desliming barrel is connected with the ore pulp inlet of the lower-stage cleaning desliming barrel.
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| CN111068374A (en) * | 2020-01-19 | 2020-04-28 | 湖南长欣博远工程技术有限公司 | Multistage spiral-flow type thickener |
| CN113617725B (en) * | 2021-08-04 | 2022-06-21 | 湖北登峰高强螺栓有限公司 | Bolt cleaning mechanism for bolt production and cleaning method thereof |
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