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Sulfur concentrate pulp dewatering process

A sulphur concentrate and process technology, which is applied in the technical field of sulphur concentrate pulp dewatering, to achieve the effects of saving resources, saving production costs and increasing output

Inactive Publication Date: 2020-04-10
JINDUICHENG MOLYBDENUM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this process, the sulfur concentrate pulp is classified and concentrated by a cyclone, and the coarse-grained sulfur concentrate pulp and the fine-grain sulfur concentrate pulp are separated. As a sulfur concentrate product directly, the fine-grained sulfur concentrate slurry enters the thickener for thickening and then is filtered by a ceramic filter. The obtained filter cake is directly used as a sulfur concentrate product, and the rest of the water is recycled to achieve dehydration according to particle size , Different dehydration processes are selected for different particle sizes, which reduces the risk of thickener raking and transportation pipe blockage during the dehydration process of sulfur concentrate pulp, and solves the problems of non-absorption of ore by the filter and environmental pollution during the dehydration process of sulfur concentrate pulp, ensuring It ensures the moisture stability of sulfur concentrate products and saves production costs

Method used

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  • Sulfur concentrate pulp dewatering process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] This embodiment includes the following steps:

[0032]Step 1. Transport the sulfur concentrate pulp with a mass concentration of 8% to the collection box 1, and then transport it to the cyclone 2 for classification and concentration treatment to obtain coarse-grained sulfur concentrate pulp and fine-grain sulfur concentrate pulp ; The mass concentration of sulfur concentrate in the coarse-grained sulfur concentrate pulp is 65%, wherein the fineness is 20% of the sulfur concentrate in the fineness of -74 μm, and the sulfur concentrate in the fine-grain grade sulfur concentrate pulp The mass concentration of the concentrate is 6%, and the mass percentage of the sulfur concentrate with a fineness of -74 μm is 85%;

[0033] Step 2, transport the coarse-grained sulfur concentrate slurry obtained in step 1 to the dehydration screen 3 for dehydration treatment, and obtain the oversize and undersize, wherein the oversize is a sulfur concentrate product, and then the oversize T...

Embodiment 2

[0040] This embodiment includes the following steps:

[0041] Step 1. Transport the sulfur concentrate pulp with a mass concentration of 15% to the collection box 1, and then transport it to the cyclone 2 for classification and concentration treatment to obtain coarse-grained sulfur concentrate pulp and fine-grain sulfur concentrate pulp ; The mass concentration of sulfur concentrate in the coarse-grained sulfur concentrate pulp is 68%, wherein the fineness is 19% of the sulfur concentrate in the fineness of -74 μm, and the sulfur concentrate in the fine-grain grade sulfur concentrate pulp The mass concentration of the concentrate is 12%, and the mass percentage of the sulfur concentrate with a fineness of -74 μm is 87%;

[0042] Step 2, transport the coarse-grained sulfur concentrate slurry obtained in step 1 to the dehydration screen 3 for dehydration treatment, and obtain the oversize and undersize, wherein the oversize is a sulfur concentrate product, and then the oversize...

Embodiment 3

[0049] This embodiment includes the following steps:

[0050] Step 1. Transport the sulfur concentrate pulp with a mass concentration of 18% to the collection box 1, and then transport it to the cyclone 2 for classification and concentration treatment to obtain coarse-grained sulfur concentrate pulp and fine-grain sulfur concentrate pulp ; The mass concentration of sulfur concentrate in the coarse-grained sulfur concentrate pulp is 69.4%, wherein the fineness is 25% of the sulfur concentrate in the fineness of -74 μm, and the sulfur concentrate in the fine-grain grade sulfur concentrate pulp The mass concentration of the concentrate is 16.9%, wherein the mass percentage of sulfur concentrate with a fineness of -74 μm is 90%;

[0051] Step 2, transport the coarse-grained sulfur concentrate slurry obtained in step 1 to the dehydration screen 3 for dehydration treatment, and obtain the oversize and undersize, wherein the oversize is a sulfur concentrate product, and then the over...

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Abstract

The invention discloses a sulfur concentrate pulp dewatering process. The sulfur concentrate pulp dewatering process comprises the following steps that firstly, a hydrocyclone is adopted for carryingout grading concentrating on sulfur concentrate pulp in a pulp collecting box, and coarse-fraction sulfur concentrate pulp and fine-fraction sulfur concentrate pulp are obtained; secondly, a dewatering screen is adopted for dewatering the coarse-fraction sulfur concentrate pulp, oversize products and undersize products are obtained, and the oversize products are conveyed to a stock bin; thirdly, athickener is adopted for concentrating the fine-fraction sulfur concentrate pulp, and a bottom flow and an overflow are obtained; fourthly, the bottom flow is stirred and filtered, a filter cake andfilter liquid are obtained, and the filter cake is conveyed to the stock bin; fifthly, a filter liquid box is adopted for carrying out three-level sediment on the filter liquid, and filter water and remaining water are obtained; and sixthly, the overflow and the remaining water are recycled. The sulfur concentrate pulp is dewatered according to the fraction, the ricks of the thickener rake pressing and transport pipe blockage in the sulfur concentrate pulp dewatering process can be reduced, the problem that a filter machine does not suck pulp can be solved, the yield and the production efficiency of a sulfur concentrate pulp product can be improved, water stability of the sulfur concentrate pulp product can be ensured, and the environment pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of beneficiation and dehydration process, and in particular relates to a dehydration process of sulfur concentrate pulp. Background technique [0002] Jinduicheng Molybdenum Industry Co., Ltd. has three sulfur concentrate production units in Jinduicheng Mining Area, namely Baihualing Concentrator, Sanmudi Concentrator, and Shaanxi Huaguang Industrial Co., Ltd. The annual production of sulfur concentrate is 750,000 tons, including more than 570,000 tons of Baihualing Concentrator, more than 150,000 tons of Sanmudi Concentrator, and more than 20,000 tons of Huaguang Nonferrous Metal Concentrator. The original sulfur concentrate pulp dehydration process is as follows: the sulfur concentrate pulp obtained by flotation with a mass concentration of about 20% is pumped to a special sedimentation tank, and the sulfur concentrate is transported to the On the truck, the truck transports the sulfur concentrate to the ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03B5/52B03B9/00B01D36/04
CPCB01D36/04B03B5/52B03B7/00B03B9/00
Inventor 刘迎春康建雄张岩李九洲段志毅刘迪闵波浪王东来白战龙雷鹏李卫昌邹艳杜凤梅董遂珍
Owner JINDUICHENG MOLYBDENUM CO LTD