CN204039461U - A kind of pre-press system of gold mine - Google Patents
A kind of pre-press system of gold mine Download PDFInfo
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- CN204039461U CN204039461U CN201420474297.0U CN201420474297U CN204039461U CN 204039461 U CN204039461 U CN 204039461U CN 201420474297 U CN201420474297 U CN 201420474297U CN 204039461 U CN204039461 U CN 204039461U
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- China
- Prior art keywords
- communicated
- outlet
- autoclave
- entrance
- press system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model discloses a kind of pre-press system of gold mine, comprise the mixing tank for coating colors be communicated with successively, feeding pump, interchanger, oxygen agitated autoclave and tubular type autoclave, the ore pulp entrance of described oxygen agitated autoclave is communicated with pressure filter, the outlet of described tubular type autoclave and the ore pulp inlet communication of one section of flash drum, the slurry outlet of described one section of flash drum is communicated with the ore pulp entrance of two sections of flash drums, the described pneumatic outlet of one section of flash drum is communicated with the gas inlet of interchanger, described two sections of flash drum slurry outlet are communicated with pressure filter entrance, the pneumatic outlet of described two sections of flash drums is communicated with tourie entrance, the outlet of described tourie is in described mixing tank for coating colors.This system can process the golden ore concentrate hard to treat of As<22%, C<5%.Due to its High Temperature High Pressure well-oxygenated environment, can effectively pyrite be for the parcel of gold and carbonaceous thing " robbing gold effect ", and arsenic will be removed in a large number in preprocessing process.
Description
Technical field
The utility model relates to a kind of pre-press system of gold mine, and the difficulty metallurgy be particularly useful for containing high arsenic high carbonaceous thing belongs to.
Background technology
Refractory Au-ores reserves account for 30% of world's gold mine total reserves.Day by day exhausted along with world's gold ore resource, Refractory Au-ores gradually pay close attention to by people.At China's Refractory Au-ores mainly based on Carlin-type gold ore, wherein the gold mine intractability of high arsenic high carbonaceous thing is maximum.Such ore adopts the process of conventional cyanidation gold extraction technology, and the leaching yield of gold is very low.Therefore such ore first need carry out pre-treatment, then carries out cyaniding again.
At present, in the pretreatment process of such mineral, pressure oxidation method because of there is not the advantages such as problem of environmental pollution, pretreated gold mine cyaniding efficiency is high, gold ore pretreatment scale is changeable, compared with its method method, there is clear superiority and gradually adopt by each manufacturing enterprise.Its pressure exerting device is also constantly modified along with the development of pressure oxidation preconditioning technique.
In such difficult-treating gold mine, gold is often contaminated in the sulphide ores such as mispickel, pyrite with the form of micro-or secondary micro-even Lattice Gold.By pressure oxidation process, the sulphide ores in gold ore can be oxidized thus be conducive to cyanating solution and golden contact.The contingent principal reaction in oxidising process of such gold ore is as follows:
2FeS
2+2H
2SO
4+O
2＝2FeSO
4+2S
0+2H
2O
S
0+H
2O+3/2O
2＝H
2SO
4
FeS
2+Fe
2(SO
4)
3＝3FeSO
4+S
0
2FeSO
4+H
2SO
4+1/2O
2＝Fe
2(SO
4)
3+H
2O
When temperature of reaction is within the scope of 100 ~ 150 DEG C, the oxidized formation one deck hydrophobicity elementary sulfur film in gold ore surface hinders cyanating solution and golden contact.This elementary sulfur film is difficult to destroyed in sulfuric acid immersion liquid, need add HNO
3and Fe
3+the destruction of sulphur film is accelerated Deng catalyzer.Under this processing environment, based on the consideration of material corrosion resisting property, reactor material must adopt pure titanium or titanium composite panel just can meet service requirements.Meanwhile, also need after this pre-treatment to carry out the pre-treatment of lime alkalescence again to remove the elementary sulfur film of mineral surface remnants further.This also makes preprocessing process tediously long, complicated operation, and processing cost rises.
When pretreatment temperature reaches 170 ~ 190 DEG C, the sulphur generated in gold ore oxidising process is completely oxidized, and reaction can a step directly complete, thus simplifies operation.But so harsh processing environment proposes high requirement for the solidity to corrosion of the material of reactor and corollary system.Meanwhile, this treatment process needs the longer treatment time (2 ~ 4h), hinders the raising of manufacturing enterprise's economic benefit to a certain extent.
Utility model content
The purpose of this utility model is the pre-press system providing a kind of gold mine, to overcome deficiency of the prior art.
For achieving the above object, the utility model provides following technical scheme:
The utility model embodiment discloses a kind of pre-press system of gold mine, comprise the mixing tank for coating colors be communicated with successively, feeding pump, interchanger, oxygen agitated autoclave and tubular type autoclave, the ore pulp entrance of described oxygen agitated autoclave is communicated with pressure filter, the outlet of described tubular type autoclave and the ore pulp inlet communication of one section of flash drum, the slurry outlet of described one section of flash drum is communicated with the ore pulp entrance of two sections of flash drums, the described pneumatic outlet of one section of flash drum is communicated with the gas inlet of interchanger, described two sections of flash drum slurry outlet are communicated with pressure filter entrance, the pneumatic outlet of described two sections of flash drums is communicated with tourie entrance, the outlet of described tourie is in described mixing tank for coating colors.
Preferably, in the pre-press system of above-mentioned gold mine, described oxygen agitated autoclave material is 316L type stainless steel, and its kettle comprises cell body, pipe core, oviduct, downtake, nozzle, bottom land and air chamber.
Preferably, in the pre-press system of above-mentioned gold mine, the diameter of described pipe core is 0.2 ~ 1m.
Preferably, in the pre-press system of above-mentioned gold mine, the material of described tubular type autoclave is 316L type stainless steel.
Preferably, in the pre-press system of above-mentioned gold mine, described feeding pump is reciprocation pump.
Preferably, in the pre-press system of above-mentioned gold mine, the material of described reciprocation pump is 316L type stainless steel.
Compared with prior art, the utility model has the advantage of: this system has that gold ore pre-treatment speed is fast, processing efficiency is high, to the advantage such as equipment and materials requirement is low.Meanwhile, the efficient oxidation environment had due to it and the feature such as processing environment is totally-enclosed, can process containing arsenic up to 22% and carbon containing up to 5% gold floatation concentrate.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Figure 1 shows that the principle schematic of the pre-press system of gold mine in the utility model specific embodiment;
Figure 2 shows that the structural representation being oxidized agitated autoclave in the utility model specific embodiment;
Figure 3 shows that the structural representation of tubular type autoclave in the utility model specific embodiment.
Embodiment
The embodiment of the invention discloses a kind of pre-press system of gold mine, it comprises mixing tank for coating colors, feeding pump, oxygen agitated autoclave, tubular type autoclave, flasher and tail gas absorption tank.
This system is mainly used in the pre-treatment in the difficult metallurgical ore deposit of high arsenic height charcoal, and high arsenic height charcoal difficult metallurgical ore deposit major impurity composition is As<22%, C<5%.
Its formation material of oxygen agitated autoclave is 316L type stainless steel, and kettle is made up of cell body, pipe core, oviduct, downtake, nozzle, bottom land and air chamber.Pipe core coordinates with nozzle, has the effect making gas lift stir ore pulp.Oxygen flow 50 ~ 200m3/t ore deposit, center caliber 0.2 ~ 1m, residence time <5min.
Its formation material of tubular type autoclave is 316L type stainless steel, and flow rate of pulp is 0.01 ~ 2m/s, center caliber 0.2 ~ 1m, residence time <5min.
Its formation material of feeding pump is the stainless reciprocation pump of 316L type.
Its formation material of flasher is 316L type stainless steel, and in integrated system, supporting flasher number is 1 ~ 3, and mode is series connection.
The environment for use of tubular type autoclave and pneumatic blending autoclave: nitric acid 50 ~ 100g/L, sulfuric acid 50 ~ 200g/L, temperature of reaction 150 ~ 220 DEG C, reaction pressure 1 ~ 3MPa, ore pulp liquid-solid ratio 3 ~ 10, oxidization time <10min.
In tail gas absorption tank, absorption liquid used is 0.1 ~ 1%H
2o
2solution.
Below in conjunction with the accompanying drawing in the utility model embodiment, be described in detail the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite not making creative work, all belongs to the scope of the utility model protection.
Shown in ginseng Fig. 1 to 3, the pre-press system of gold mine comprises: mixing tank for coating colors, feeding pump, interchanger, oxygen agitated autoclave, tubular type autoclave, one section of flash drum, two sections of flash drums, tourie and pressure filter.
The ore pulp entrance of oxygen agitated autoclave 1 is communicated with interchanger slurry outlet and pressure filter 5 filtrate outlet, and the gas inlet of oxygen agitated autoclave 1 is arranged with oxygen and is communicated with, and the slurry outlet of oxygen agitated autoclave 1 is communicated with the entrance of tubular type autoclave 2; The ore pulp inlet communication of the outlet of tubular type autoclave 2 and one section of flash drum 3; The slurry outlet of one section of flash drum 1 is communicated with the ore pulp entrance of two sections of flash drums 2, and the pneumatic outlet of one section of flash drum 1 is communicated with interchanger gas inlet; Two sections of flash drum 2 slurry outlet are communicated with pressure filter entrance, and two sections of flash drum 2 pneumatic outlets are communicated with tourie entrance.
In the utility model, the coupling of oxygen agitated autoclave and tubular type still improves oxygen rate of utilization in preprocessing process and reaction process mass-and heat-transfer efficiency greatly, and the nitric acid added in leaching environment when pretreatment temperature reaches 170 ~ 190 DEG C simultaneously can make pre-treating speed significantly increase as catalyzer.And metal erosion experiment confirms at HNO
3-H
2sO
4-H
2in O system, the erosion rate of 316L type stainless steel under 100 DEG C and boiling temperature is all no more than 0.1mm/a, in this system, therefore use 316L type stainless steel can meet production requirement as the material of autoclave and support equipment.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. the pre-press system of a gold mine, it is characterized in that, comprise the mixing tank for coating colors be communicated with successively, feeding pump, interchanger, oxygen agitated autoclave and tubular type autoclave, the ore pulp entrance of described oxygen agitated autoclave is communicated with pressure filter, the outlet of described tubular type autoclave and the ore pulp inlet communication of one section of flash drum, the slurry outlet of described one section of flash drum is communicated with the ore pulp entrance of two sections of flash drums, the described pneumatic outlet of one section of flash drum is communicated with the gas inlet of interchanger, described two sections of flash drum slurry outlet are communicated with pressure filter entrance, the pneumatic outlet of described two sections of flash drums is communicated with tourie entrance, the outlet of described tourie is in described mixing tank for coating colors.
2. the pre-press system of gold mine according to claim 1, is characterized in that: described oxygen agitated autoclave material is 316L type stainless steel, and its kettle comprises cell body, pipe core, oviduct, downtake, nozzle, bottom land and air chamber.
3. the pre-press system of gold mine according to claim 2, is characterized in that: the diameter of described pipe core is 0.2 ~ 1m.
4. the pre-press system of gold mine according to claim 1, is characterized in that: the material of described tubular type autoclave is 316L type stainless steel.
5. the pre-press system of gold mine according to claim 1, is characterized in that: described feeding pump is reciprocation pump.
6. the pre-press system of gold mine according to claim 5, is characterized in that: the material of described reciprocation pump is 316L type stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474297.0U CN204039461U (en) | 2014-08-21 | 2014-08-21 | A kind of pre-press system of gold mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420474297.0U CN204039461U (en) | 2014-08-21 | 2014-08-21 | A kind of pre-press system of gold mine |
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| Publication Number | Publication Date |
|---|---|
| CN204039461U true CN204039461U (en) | 2014-12-24 |
Family
ID=52240151
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420474297.0U Withdrawn - After Issue CN204039461U (en) | 2014-08-21 | 2014-08-21 | A kind of pre-press system of gold mine |
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| Country | Link |
|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178627A (en) * | 2014-08-21 | 2014-12-03 | 江苏申港锅炉有限公司 | High-pressure pretreatment system for gold ores |
-
2014
- 2014-08-21 CN CN201420474297.0U patent/CN204039461U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178627A (en) * | 2014-08-21 | 2014-12-03 | 江苏申港锅炉有限公司 | High-pressure pretreatment system for gold ores |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20160706 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |