CN1050530A - The griding technology method that electrical carbon graphite is produced - Google Patents
The griding technology method that electrical carbon graphite is produced Download PDFInfo
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- CN1050530A CN1050530A CN 89106830 CN89106830A CN1050530A CN 1050530 A CN1050530 A CN 1050530A CN 89106830 CN89106830 CN 89106830 CN 89106830 A CN89106830 A CN 89106830A CN 1050530 A CN1050530 A CN 1050530A
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Abstract
The griding technology method that a kind of electrical carbon graphite is produced; its feature grinding attachment adopts improved vibrating mill; can satisfy the flotation conditions requirement; can protect the vibro grinding process program of big scale again, not only be suitable for the production of electrical carbon graphite, and can improve the grade of electrical carbon graphite; general raising 1～2%; take up an area of and lack, less investment, power savings is remarkable.
Description
The present invention relates to the production method of electrical carbon graphite, is to adopt vibration mill to produce the processing method of electrical carbon graphite specifically.
At present, in the prior art, carbon in the production (containing fixed carbon composition 80%～93%) graphite all adopts flotation process to sort.Producing high-carbon graphite (contain fixed carbon composition 95% or more) all is that its cost is very high with chemically treated method purification, and environmental pollution is serious, and is very big to operator's Health hazard.Therefore the production of electrical carbon graphite (containing fixed carbon composition 94%～95%) all adopts flotation process to purify, and its whole process is to finish with ore grinding-flotation-dehydration-oven dry-processing methodes such as screening.The kind of product and quality depend primarily on two technical process of ore grinding and flotation, promptly depend on the granularity of ore grinding, big flaky destruction situation, recovery rate in ore-dressing and concentrate grade factors.Now from dressing method, be the research of chemical treatment and flotation reagent and using method go to study more, from milling method research seldom, still be to adopt the stone mill griding technology, as producers such as domestic southern villa graphite ores, or adopt ball mill, rod mill ore grinding, as domestic willow hair graphite ore, external Canadian cloth Rec Donald selects factory, Mexican Joseph of Arimathea, Saint mine, South Africa lattice to draw some producers of states such as the fertile gram of Fitow, Crow Pumi that and the Soviet Union, the U.S., Japan.The method of these two kinds of ore grindings all exists some defectives.The stone mill griding technology, floor space is big, need many socle mills, behind 8～10 ore grindings, ore pulp just can enter flotation flowsheet, big energy-consuming, maintenance cost height, difficult management, grinding efficiency only can reach the quality index that electrical carbon graphite is produced, ball mill, rod mill griding technology generally all are that grinding efficiency is undesirable by twice continuous ore grinding of row, big scale is destroyed easily, iron level in ore pulp and the product surpasses 1% sometimes, and this all is unallowed to many electrical carbon graphite products, and the purposes of concentrate is restricted.
The objective of the invention is to some defectives of avoiding above-mentioned; provide a kind of and can satisfy the flotation conditions requirement; can protect the vibro grinding process program of big scale again; not only be adapted to the production of electrical carbon graphite; and can improve the grade of electrical carbon graphite; be again to take up an area of to lack, facility investment is few, the significant a kind of vibro grinding process program of power savings.
The present invention is achieved in that and adopts improved vibrating mill, the use diameter is that 5～8 millimeters mill is situated between, mill is situated between and is steel ball or gravel, amplitude limit is below 6 millimeters, add the overflow screen in barrel discharge hole, preventing that mill is situated between overflows with ore pulp, selects suitable feed ore concentration and hold ball rate, and the intrinsic porphyrization of change vibrating mill is that autogenous grinding between pulverizing, friction, the raw material and ripples are to the ballistic comprehensive action of material.Add the overflow screen in barrel discharge hole, prevent to grind the process that Jie is overflowed with ore pulp, form open-circuit grinding, used feed ore concentration is that 35～40% hold ball rate are 70～80%.
Be described further below in conjunction with embodiment, adopt the 2MZ-800 vibrating mill as grinding attachment, its main shaft is transformed, replace former semi-rigid unitor with universal coupling, attachment bolt to cylindrical shell has been done improvement, has added the overflow screen at the discharge port of cylindrical shell.
The preparation of electrical carbon graphite, embodiment 1, (carbon content is 84～86% for carbon in employing Mouping, the Shandong product mixing order, account for about 40% more than 100 orders) add water and stir, concentration is controlled at 35～40%, and add an amount of inorganic salt dispersion agent, drop into the vibrating mill ore grinding, the ore grinding time was controlled at 2～3 minutes, mill is situated between and adopts the steel ball of φ 5～φ 8, filling ratio is controlled at 70%, adopt 4～6mm amplitude, vibrational frequency is 16.33 hertz, adopt the method for open-circuit grinding, ore pulp after having ground adds water and stirs, add flotation reagent and enter flotation operation together, the concentrate that this method is produced, the carbon content of various granularities is all more than 96%, wherein 50 order C contents are 96.1～96.3%, 80 order C contents are 96.2～96.5%, 100 order C contents are 96.4～96.8%,-100 orders are 96.5～97%, the analysis revealed that concentrate carries out granularity after oven dry, big scale rate of loss is not higher than 9～13%, and big scale damaed cordition in the product: 50 purposes reduce to 7～11% by 10～12% of raw material, and 80 purposes reduce to 25～27% by 26～30% of raw material, 100 purposes reduce to 6～7% by 8～9%, and this comprises owing to rejected the false sheet in the raw material (as sheet mica, sand grains and other impurity) and the granularity loss of disintegrating and to be caused of compound scale.
Adopt the medium-carbon graphite in the different places of production, it contains hybrid class difference, but mill Jie diameter of using because of vibrating mill is very little, the loading level that mill is situated between is bigger, mill is situated between and fully contact friction of material, simultaneously because of adopting little amplitude and high-frequency method that material can be ground fully, big scale is not seriously pulverized, that therefore can not consider it fully contains the hybrid class.Embodiment 2, contain the mica height as carbon in the Pingdu flood mountain products, and carbon trioxygen-containingization two aluminium height during produce in the mug(unit of measure) village adopt the present invention to produce, and concentrate grade all reaches more than 96%, are that 60% big vast mountain low-carbon (LC) is produced to C content, and concentrate grade still can reach 94%.
The present invention compared with prior art has following advantage: product grade can improve more than 1～2%, and big scale loss reduces more than one times. The stone mill ore grinding is because carrying the quality of big scale to the regulation requirement, so, raw material must be given first classification, the proposition more than big scale 100 orders is processed in addition (generally adopting chemical treatment to purify), only the following raw material of mill-100 orders also needs through 8～10 ore grindings, and product grade only reaches 94～95%. The ball mill ore grinding, big scale loss late is generally 25～30%. Energy-saving effect is obvious, and power consumption is economized one times than stone mill ore grinding, reduces 17% than ball mill. Equipment investment is few, is 1/2 of stone mill and ball milling. Land occupation and construction cost reduce more than one times than ball mill, only have 1/5 to 1/6 of stone mill. Operating personnel are few, and maintenance cost is low, and mill is situated between and consumes gently, and technological process is succinct, and sanitary condition is good.
Claims (4)
1, a kind of griding technology method of electrical carbon graphite production, it is characterized in that the improved vibrating mill of grinding attachment, the use diameter is that 5～8 millimeters mill is situated between, amplitude limit is below 6 millimeters, add the overflow screen in barrel discharge hole, preventing that mill is situated between overflows with ore pulp, selects suitable feed ore concentration and hold ball rate, and the intrinsic porphyrization of change vibrating mill is that autogenous grinding between pulverizing, friction, the raw material and ripples are to the ballistic comprehensive action of material.
2, according to the described griding technology method of claim 1, it is characterized in that adding the overflow screen, prevent to grind the process that Jie is overflowed with ore pulp, form open-circuit grinding in barrel discharge hole.
3, according to the described griding technology method of claim 1, the said mill of its feature is situated between and is steel ball or gravel.
4, according to the described griding technology method of claim 1, it is characterized in that feed ore concentration is 35～40%, hold ball rate is 70～80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106830 CN1050530A (en) | 1989-09-30 | 1989-09-30 | The griding technology method that electrical carbon graphite is produced |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89106830 CN1050530A (en) | 1989-09-30 | 1989-09-30 | The griding technology method that electrical carbon graphite is produced |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1050530A true CN1050530A (en) | 1991-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89106830 Pending CN1050530A (en) | 1989-09-30 | 1989-09-30 | The griding technology method that electrical carbon graphite is produced |
Country Status (1)
| Country | Link |
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| CN (1) | CN1050530A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649100A (en) * | 2012-04-21 | 2012-08-29 | 山东莱芜煤矿机械有限公司 | Equipment combination for fine flake graphite flotation technology |
| CN103072975A (en) * | 2012-12-28 | 2013-05-01 | 中南大学 | Low-grade aphanitic graphite dressing and purifying method |
-
1989
- 1989-09-30 CN CN 89106830 patent/CN1050530A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649100A (en) * | 2012-04-21 | 2012-08-29 | 山东莱芜煤矿机械有限公司 | Equipment combination for fine flake graphite flotation technology |
| CN103072975A (en) * | 2012-12-28 | 2013-05-01 | 中南大学 | Low-grade aphanitic graphite dressing and purifying method |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
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