CN2738889Y - Sulfuric acid residual separating-purifying-sorting apparatus - Google Patents

Abstract

The utility model relates to a sulfuric acid residual separating-purifying-sorting apparatus. The utility model has the technical proposal that an ore separator [1] and an ore feeding groove [3] are fixedly connected and mounted on an upper bracket [2]; the upper bracket [2] is fixedly connected with a spiral groove column [4], and a spiral chute [5] is fixedly connected with the spiral groove column [4]; the upper end of the spiral chute [5] is located under the upper bracket [2], and the lower end of the spiral chute [5] is connected with an ore cutting groove [6]; the ore cutting groove [6] is connected with an ore receiving bucket [7]. The inner side of the spiral chute [5] is equipped with a transversal wash tub pipe [8] which is externally connected with high-pressure water source, and the inner side of the transversal wash tub pipe [8] is provided with a plurality of water outlet holes. The transversal wash tub pipe [8] is in pipe spiral shape. This equipment breaks through the traditional theoretic limit that the ratio of height to diameter can not less than 0.45, and adopts the ultra-limit ratio of height to diameter that h/d = 0.33-0.40; thus the sulfuric acid residual separating-purifying-sorting apparatus has the advantages of simple operation, low energy consumption, high recovery rate, low cost, stable running and without generating secondary pollution, etc. The sulfuric acid residual separating-purifying-sorting apparatus can also be widely used for resources processing of lower grade tailings, metalliferous solid slag, low-density non-metal materials, metal mine debris and chemical fine materials.

Description

Separation, purification and sorting equipment for sulfuric acid slag

1. Technical field

The utility model belongs to resource processing equipment. In particular, it relates to a sorting device for separating and purifying sulfuric acid slag.

2. Background technology

The use of sulfuric acid slag has a history of nearly a hundred years in foreign countries. Although some industrially developed countries have not stopped the research on sulfuric acid slag, so far, there has been no major breakthrough in the treatment technology of sulfuric acid slag. The reasons are mainly due to the complex production process, difficult process control, unstable product indicators, low utilization rate, and high operating costs. The reason is that equipment is the main factor restricting the development of sulfuric acid slag resources. Since there is no special equipment for sorting sulfuric acid slag for a long time, different sorting processes are usually used for sorting with the help of original traditional equipment. Although these processes and equipment can sort sulfuric acid slag to a certain extent, they are not completely It is suitable for the separation characteristics of sulfuric acid slag, and the result is low separation efficiency, unstable product quality, high operating cost and complicated process.

The most commonly used traditional spiral chute for the separation of sulfuric acid slag (Qiu Jicun, Mineral Processing, Metallurgical Industry Press, 1987 Beijing), its function is to initially enrich the target minerals and provide rough concentrate for the next step of separation process. Considering factors such as material density and the lower limit of recycled particle size, the aspect ratio h/D of the equipment generally changes between 0.45 and 0.8, and the lower limit does not exceed 0.45, usually 0.5 to 0.6 times. This can ensure that the minerals with coarse particle size and large density difference between the target minerals and non-target minerals can be continuously separated in the turbulent flow film and rheological force field without "stacking" and "slipping". But when this traditional equipment is used for the separation of sulfuric acid slag, due to the purpose minerals (iron-containing minerals) and non-purpose minerals (residual sulfur carrier, pyrite joints and gangue minerals such as silicon dioxide) in the sulfuric acid slag The density difference between them is extremely small (usually between 0.1-0.2%). Under this small density difference, when the ratio of the chute pitch h to the chute diameter D is the conventional aspect ratio of 0.45-0.8, the sulfuric acid Slag cannot be effectively separated. At this time, the target minerals and non-target minerals in the sulfuric acid slag are mixed with each other in the rheological force field of the spiral fluid and thrown to the outside of the chute, and finally become tailings.

3. Summary of the invention The purpose of this utility model is to provide a sulfuric acid slag separation, purification and sorting equipment with simple operation, low energy consumption, high recovery rate, low cost, stable operation and no secondary pollution. The equipment can also be widely used in other low-grade tailings, metal-containing solid waste, low-density non-metallic materials, metal mine tailings and chemical fine materials for separation and purification, enrichment separation, comprehensive recovery and other resource treatment.

In order to achieve the above purpose, the technical solution adopted by the utility model is: the ore separator is fixedly connected with the ore feeding trough and installed on the upper bracket, the upper bracket is fixedly connected with the spiral groove pillar, and the spiral chute is fixedly connected with the spiral groove pillar, The upper end of the spiral chute is located under the upper support, and the lower end is connected with the ore-cutting chute, and the ore-cutting chute is connected with the ore-connecting hopper, and a horizontal flushing water pipe is arranged on the inner side of the spiral chute.

The horizontal flushing water pipe is externally connected to a high-pressure water source, and there are a number of water outlet holes inside, which are in the shape of a tubular spiral. There are 1 to 4 spiral chutes. The ratio of the spiral height h of the spiral chute to the outer diameter D is: h/D=0.33～0.40. The spiral chute is made of glass fiber reinforced plastic or fiberglass, and the lining is corundum type wear-resistant material.

Due to the adoption of the above technical scheme, the utility model breaks through the traditional theoretical limit that the aspect ratio cannot be less than 0.45, and adopts an ultra-limit aspect ratio design of h/D=0.33～0.40, which makes it easy to operate, low in energy consumption, and recyclable. Notable features such as high efficiency; after increasing the diameter of the spiral groove, it can still effectively recover fine-grained minerals; it improves the separation efficiency of sulfuric acid slag with small density difference. The design of horizontal flushing water is added, no secondary pollution occurs, and the enrichment ratio of a single machine is improved.

The utility model is not only suitable for the treatment of sulfuric acid slag, but also can be widely used in resource treatment of other low-grade tailings, metal-containing solid waste, low-density non-metallic materials, metal mine tailings and chemical fine materials.

4. Description of drawings

Fig. 1 is a kind of structural representation of the utility model;

Fig. 2 is a schematic diagram of the arrangement of the flushing water pipe of the present invention.

5. Specific implementation

The structure of this embodiment is shown in Figure 1, the ore separator [1] is fixedly connected with the ore feeder [3] and installed on the upper bracket [2], and the upper bracket [2] is fixed with the spiral groove pillar [4] Connection, the spiral chute [5] is fixedly connected with the spiral chute pillar [4], the upper end of the spiral chute [5] is positioned at the bottom of the upper bracket [2], and the lower end is connected with the cutting groove [6], the cutting groove [6] and The ore hopper [7] is connected, and a horizontal flushing water pipe [8] is arranged on the inner side of the spiral chute [5]. The horizontal flushing water pipe [8] is shaped as a tubular spiral.

The spiral chute [5] that the present embodiment adopts is 3, and section curve adopts composite cubic parabolic section curve, and the lateral downslope angle of top section curve is greater than bottom. The ratio of the height h of the helix to the outer diameter D is: h/D=0.35. The spiral chute [5] is made of fiberglass reinforced plastics or FRP, and the lining is a corundum type wear-resistant material.

This embodiment breaks through the traditional theoretical limit that the aspect ratio cannot be less than 0.45, and adopts the ultra-limit aspect ratio design of h/D=0.35, so that it has the characteristics of simple operation, low energy consumption, and high recovery rate; The fine-grained minerals can still be effectively recovered after the diameter of the tank is increased, which improves the separation efficiency of sulfuric acid slag with small density difference. The design of horizontal flushing water is added, no secondary pollution occurs, and the enrichment ratio of a single machine is improved. The equipment can also be widely used in resource treatment of other low-grade tailings, metal-containing solid waste, low-density non-metallic materials, metal mine tailings and chemical fine materials.

Claims (5)

1. Separation, purification and sorting equipment for sulfuric acid slag, characterized in that the ore separator [1] is fixedly connected with the ore feed tank [3] and installed on the upper bracket [2], and the upper bracket [2] is connected with the spiral groove pillar [4] Fixed connection, the spiral chute [5] is fixedly connected with the spiral chute pillar [4], the upper end of the spiral chute [5] is located under the upper support [2], and the lower end is connected with the cutting groove [6]. [6] is connected with the ore receiving hopper [7], and the inboard of the spiral chute [5] is provided with a horizontal flushing water pipe [8]. 2. Sulfuric acid slag separation, purification and sorting equipment according to claim 1, characterized in that the horizontal flushing water pipe [8] is externally connected to a high-pressure water source, and there are several water outlet holes on the inner side of the horizontal flushing water pipe [8] for horizontal flushing. Water pipe [8] shape is tubular spiral. 3. Separation, purification and sorting equipment for sulfuric acid slag according to claim 1, characterized in that there are 1 to 4 spiral chutes [5]. 4. Separation, purification and sorting equipment for sulfuric acid slag according to claim 1, characterized in that the ratio of the height h of the spiral sheet of the spiral chute [5] to the outer diameter D is: h/D=0.33-0.40. 5. Sulfuric acid slag separation, purification and sorting equipment according to claim 3, characterized in that said spiral chute [5] is made of glass fiber reinforced plastic or fiberglass, and the lining is corundum wear-resistant material.

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