Multilevel separator for wet gravitation concentration of ores

FIELD: mining.

SUBSTANCE: invention relates to the field of minerals concentration, in particular concentration of ores and alluvial deposits by means of their wet gravitation separation in flow of pulp that flows along inclined working surface. Separator includes feeder and at least two double-level stages of separation, in each level of which the following components are serially arranged along vertical axis - pulp distributor, working surface in the form of tilted cone-shaped surface, unloading unit with splitter, besides unloading unit comprises outputs of heavy and light fractions, and lower perimetres of working surfaces in levels of all double-level stages of separation are arranged as identical. In each double-level stage of separation perimetre of upper part of working surface of lower level is less than perimetre of upper part of working surface of upper level.

EFFECT: increased efficiency of separation.

3 cl, 2 dwg

 

The invention relates to the field of enrichment materials, including ores and placers, by wet gravity separation in the flow of the slurry flowing along the inclined working surface.

Known multilayer separator for wet gravity separation of ores by awts of the USSR № 1044331 And, publ. 30.09.1983, IPC WV 5/38 containing feeder and several tiers of separation, each of which on the vertical axis are consistently polyparaphenylene, working surface made in the form of inverted truncated conical surface, and the discharge node with a shut-off valve, and the discharge node contains the outputs of the heavy and light fractions. The outputs of the heavy fraction from the upper tiers of separation are connected by a pipeline through two or three layers to the lower layers for subsequent peredishki. However, starting from the second tier, the operating surfaces of the layers made of the same, with the upper and lower perimeters, respectively, is made smaller relative to the respective perimeters of the working surface of the top of the first tier.

The main disadvantage of this separator is the possibility of mixing of stratified layers of the pulp in the lower parts of the working surface, starting from the second tier separation. This is due to the small perimeter of the lower parts of these workers over the spines, what contributes to the possibility of collision of the opposing jets already delaminated pulp.

Another disadvantage of this separator is that for the same size, starting from the second tier separation, working surfaces at their outputs, the appropriate handling nodes, there is provided the optimum height of the flow of pulp. This contributes to a lack of the heavy fraction output.

Also one disadvantage is the complexity of the design due to the use of multiple slurry pipelines for peredishki selected parts of the heavy fraction.

Closest to the claimed solution to the technical essence and the achieved technical result is multilayered separator for wet gravity separation of ores for U.S. patent No. 3379310, publ. 23.04.1968, NCI 209-459 containing the feeder and at least two bunk separation stage, each tier of which on the vertical axis are consistently polyparaphenylene, working surface made in the form of inverted truncated cone or pyramid surface, and the discharge node with a shut-off valve, and the discharge node contains the outputs of the heavy and light fractions, the yield of heavy fractions of the upper tier of each bunk separation stage is connected with polyparaphenylene is the lower tier, and the lower perimeters of working surfaces in all tiers two tier stages of separation are made the same. This separator contains in each bunk stage of separation of the upper tier with dual work surfaces and the lower tier single working surface. In the top tier with dual work surfaces, in their upper parts, is twin ring fullpotential, and in the lower parts of the double annular discharge the node with the corresponding selectors and outputs of the heavy and light fractions.

The advantage of this prototype in comparison with the similar is the use of at least one bunk separation stage, in which the upper level has double working surface that provides optimum load per unit of flow of the pulp on the working surface of the lower layer. Advantage is also using the same optimal perimeter of the lower parts of working surfaces in all tiers of separation, which eliminates mixing already poured the pulp, as well as the exclusion of a significant part of the pipeline for peredishki selected parts of the heavy fraction.

However, the main disadvantage of this concept is the design complexity and the possibility of clogging of large pieces of rock or man-made debris AC is double o-ring discharge valve in the lower part of the dual working surfaces of the upper tier, and clogging in the upper part of these dual working surfaces of the ring twin of polypodioides. And it reduces the optimal and reliable mode of operation of such a separator due to violations of the homogeneity of the flow of pulp and its height before the trimming of the corresponding discharge valve and leads to the insufficient output of the heavy fraction with bunk stages of separation.

The basis of the invention is the creation of an effective multi-tiered separator for wet gravity separation of ores by providing free passage as the flow of slurry and separated (heavy and light) its fractions. And avoid possible clogging of the major parts of the rocks or man-made waste of all nodes of the separator by way of the passage of the pulp or its separated fractions. To ensure optimal and reliable mode of operation of such a separator with a maximum output of heavy fractions from each bunk separation stage, in particular to ensure optimal height flow of the pulp before the selectors working surfaces of all layers of separation.

The problem is solved in that the stacked separator for wet gravity separation of ores contains the feeder and at least two bunk separation stage, each tier of which on the vertical axis consequently what are polyparaphenylene, the work surface is made in the form of inverted truncated cone or pyramid surface, and the discharge node with a shut-off valve, and the discharge node contains the outputs of the heavy and light fractions, the yield of heavy fractions of the upper tier of each bunk separation stage is connected with polyparaphenylene the lower tier, and bottom perimeters of working surfaces in all tiers two tier stages of separation are made the same. Each bunk stage of separation of the upper perimeter of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of its upper tier. In every single stage of separation of the upper perimeter of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of its upper tier 1.5-2 times. In addition, the separator may further comprise the last single stage separation, and the outputs of the heavy fractions from each previous bunk separation stage connected with polyparaphenylene last single separation stage.

Execution at every single stage of separation of the upper perimeter of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of the upper tier can provide optimal mode (with the maximum output heavy fraction) job separator, in particular, to ensure optimal height flow of the pulp before the selectors working surfaces of all layers of separation by providing these working surfaces optimum specific load flow of the pulp. And allows free passage, as the flow of slurry and separated (heavy and light) of its factions through all nodes of the separator. This ensures reliable and optimum performance of the separator.

Execution at every single stage of separation of the upper perimeter of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of the upper tier 1.5-2 times allow for optimal range of such reduction with optimal specific load on the working surfaces of all layers of separation for efficient separation of the flow of pulp into fractions.

Execution of the separator with the more recent single stage separation allows selected from heavy fractions from the previous bunk stages of separation to obtain a concentrate of heavy fractions and isolate the intermediate fraction (middlings).

The above confirms the presence of causal relations between a set of essential features of the claimed invention and achievable technical result.

Given the totality of beings is the R signs allows comparison with the prototype to simplify the design and improve the best and most reliable mode of operation of such a separator, which eliminates a possible violation of the homogeneity of the flow of pulp and its height before the trimming of the corresponding discharge valve. This is due to the free passage of the flow of the pulp and its separated fractions through all nodes of the separator when provide optimal height flow of the pulp before the selectors working surfaces of all layers of separation.

In the author's opinion, the proposed solution meets the criteria of the invention of "novelty" and "inventive step", since the set of essential features that characterize the inventive multilayer separator for wet gravity separation of ores, is new and not obvious from the prior art.

The invention is illustrated by drawings in which the same elements have the same numerical designation and where: Figure 1 is a diagram of a multi-tiered separator for wet gravity separation of ores with three bunk steps and additional single step; Figure 2 is a diagram fill in the pulp, in percentage terms, the tiers stacked separator of figure 1.

Preferred multilayer separator for wet gravity separation of ores made in the form of a seven-layer separator, which is in accordance with Figure 1 contains a feeder 1 for feeding and the output slurry of fine-grained ore, three bunk stage 2, 3, 4, and optionally one last single stage 5. In each layer on the vertical axis are consistently polyparaphenylene in the form of inclined radial slurry pipelines with circular conical surface (straight truncated cone), the working surface in the form of an inverted truncated cone and the discharge node with a circular cutter, and the discharge node contains the outputs of the heavy and light fractions. Thus, the upper tier of the first bunk stage 2 contains the radial slurry pipelines 6, the annular conical surface 7, the working surface 8, the annular cutter 9, the annular exit 10 heavy fractions, the output 11 of the light fraction. The lower tier of the first bunk stage 2 contains radial pipeline 12, the annular tapered surface 13, the working surface 14, the annular cutter 15, the annular exit 16 heavy fractions, the output 17 of the light fraction. The upper tier of the second bunk stage 3 contains radial pipeline 18, the annular tapered surface 19, the working surface 20, the annular cutter 21, the annular exit 22 heavy fractions, the output 23 of the light fraction. The lower tier of the second bunk stage 3 contains radial pipeline 24, the annular tapered surface 25, the working surface 26, the annular cutter 27, the annular outlet 28 hard for the faction, the output 29 of the light fraction. The upper tier of the third bunk stage 4 contains radial pipeline 30, the annular tapered surface 31, the working surface 32, the annular cutter 33, the annular outlet 34 heavy fractions, the output 35 of the light fraction. The lower tier of the third bunk stage 4 contains the radial slurry pipelines 36, the annular conical surface 37, the working surface 38, the annular cutter 39, the annular outlet 40 heavy fractions, the output 41 of the light fraction. The fourth single stage 5 contains the radial slurry pipelines 42, the annular conical surface 43, the working surface 44, the annular cutter 45, annular exit 46 heavy fraction (concentrate) of the separator, the output 47 of the intermediate fraction (middlings) separator. Thus the outputs 16, 28 and 40 heavy fraction bunk previous stages 2, 3 and 4 separation combined slurry pipeline 48, which is connected to the feeder 49 polyparaphenylenes fourth last single level 5 separation. Ring output 10 heavy fraction connected with polyparaphenylene the bottom of the first tier bunk stage 2, and the outputs 11 and 17 light fractions respectively of the upper and lower tiers first bunk stage 2 is connected to polyparaphenylene second bunk stage 3. The annular exit 22 heavy fraction connected with polyparaphenylene who eat the bottom of the second tier bunk stage 3, and outputs 23 and 29 light fractions respectively of the upper and lower tiers of the second bunk stage 3 is connected to polyparaphenylene third bunk stage 4. The annular outlet 34 heavy fraction connected with polyparaphenylene the bottom of the third tier bunk stage 4, and outputs 35 and 41 of the light fractions respectively of the upper and lower tiers of the third bunk stage 4 and are connected with the output of the light fraction (tails) of the separator. The perimeters of the upper parts of the working surface 14, 26, 38 is less than the perimeter of the upper parts respectively of the working surface 8, 20, 32 of the upper levels, respectively, in the first 2, second 3 and third 4 bunk stages of separation in 1.5-2 times. The size of the perimeter of the top of the working surface 44 of the fourth section 5 of the separation is the same as the value of the perimeters of the upper parts of the working surface 14, 26, 38.

In other versions polyparaphenylene all sections of the separation can be performed in the form of a straight truncated cone rings. And the working surface can be made in the form of a pyramid surface.

Stacked separator for wet gravity separation of ores is as follows.

In accordance with Figure 1-2 the source of fine-grained ore (one hundred percent of the amount) in the form of slurry is loaded into the feeder 1 and it is about the radial slurry pipelines 6 and the annular conical surface 7, where the pulp is evenly distributed, flows down a uniform layer on the working surface 8 of the upper tier of the first stage 2. On the working surface 8, due to its narrowing towards its lower part, the flow of the pulp stratified by height and density, and the heavy fraction is located in the lower layer of the pulp, and the light fraction in the upper layer. Annular cutter 9 separates the heavy fraction from the stream of pulp and heavy fraction (forty percent relative to the initial amount of slurry) is supplied through the annular exit 10 heavy fraction in the radial slurry pipelines 12 and the annular tapered surface 13, on which the pulp is evenly distributed and flows down a uniform layer on the working surface 14 of the lower tier of the first stage 2. Due to the smaller perimeter of the top of the work surface 14 relative to the perimeter, respectively, of the upper part of the working surface 8 in 1.5-2 times is provided by the same unit load flow of the pulp on these surfaces 8 and 14. It also provides the same height-stratified flow of the pulp before the corresponding ring off valves 9 and 15, in combination with optimally selected, the same for all tiers of separation, the perimeter of the lower parts of their working surfaces (the optimal diameter of the lower parts is 400-500 mm) provides in order to ensure optimum quality and selection of heavy fractions in these working surfaces 8 and 14. Sixty percent of the light fraction from the working surface 8 through the outlet 11 and twenty-five percent of the light fraction from the working surface 14 through the outlet 17 are combined along the vertical axis of the separator and sent to polyparaphenylene in the form of radial slurry pipelines 18 and the annular conical surface 19 of the subsequent second stage 3, in which, as in the third stage 4, the process of separating the flow of the pulp occurs in a similar way as in the first stage 2 separation, and in accordance with the process diagram in figure 2. In accordance with this chart in all sections of the separator ensures optimum quality and selection of heavy fractions in their respective working surfaces. The feeder 49 polyparaphenylenes fourth last single level 5 separation on the slurry pipeline 48 are dedicated cleaners heavy fraction after the first 2, second 3 and third 4 stages of separation with the selection in step 5 separation of the intermediate product (concentrate).

In other embodiments, the multi-tier separator for wet gravity separation of ores working surface layers from all sections of the separation can be made in the form of inclined chutes with the cone or pyramid tapering to the bottom surface.

Although there is shown and described in what ways, deemed best to implement the present invention, specialists in the art will understand that you can make a variety of changes and modifications and the elements can be replaced by an equivalent, without going beyond the scope of claims of the present invention.

Compliance with the proposed technical solution the criteria of the invention "industrial applicability" is confirmed by a specified example of stacked separator for wet gravity separation of ores.

1. Stacked separator for wet gravity separation of ores containing feeder and at least two bunk separation stage, each tier of which on the vertical axis are consistently polyparaphenylene, working surface made in the form of inverted truncated cone or pyramid surface, and the discharge node with a shut-off valve, and the discharge node contains the outputs of the heavy and light fractions, the yield of heavy fractions of the upper tier of each bunk separation stage is connected with polyparaphenylene the lower tier, and bottom perimeters of working surfaces in all tiers two tier stages of separation are made the same, characterized in that in each bunk stage of separation perimeter ver is it part of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of its upper tier.

2. The separator according to claim 1, characterized in that in each bunk stage of separation of the upper perimeter of the working surface of the lower layer is less than the perimeter of the upper portion of the working surface of its upper tier 1.5-2 times.

3. The separator according to any one of claims 1 and 2, characterized in that it further contains the latest single stage separation, and the outputs of the heavy fractions from each previous bunk separation stage connected with polyparaphenylene last single separation stage.



 

Same patents:

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EFFECT: improved efficiency of valuable heavy fraction extraction, improved concentrator throughput.

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3 cl, 2 dwg, 1 ex

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Gravity separator // 2193452
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EFFECT: the invention ensures an increase and stabilization of a density of suspension in the zone of separation.

3 cl, 2 dwg, 1 ex

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FIELD: mining.

SUBSTANCE: invention relates to the field of minerals concentration, in particular concentration of ores and alluvial deposits by means of their wet gravitation separation in flow of pulp that flows along inclined working surface. Separator includes feeder and at least two double-level stages of separation, in each level of which the following components are serially arranged along vertical axis - pulp distributor, working surface in the form of tilted cone-shaped surface, unloading unit with splitter, besides unloading unit comprises outputs of heavy and light fractions, and lower perimetres of working surfaces in levels of all double-level stages of separation are arranged as identical. In each double-level stage of separation perimetre of upper part of working surface of lower level is less than perimetre of upper part of working surface of upper level.

EFFECT: increased efficiency of separation.

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2 cl, 1 dwg

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