CN111085335A - Compound ore blending method for tin concentrate - Google Patents
Compound ore blending method for tin concentrate Download PDFInfo
- Publication number
- CN111085335A CN111085335A CN201911211147.4A CN201911211147A CN111085335A CN 111085335 A CN111085335 A CN 111085335A CN 201911211147 A CN201911211147 A CN 201911211147A CN 111085335 A CN111085335 A CN 111085335A
- Authority
- CN
- China
- Prior art keywords
- ore
- ore pulp
- tin concentrate
- hot air
- grade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
A tin concentrate compound ore blending method belongs to the field of ore blending, and particularly relates to a method for obtaining two or more tin concentrates with different grades by carrying out compound ore blending through a physical hydrolysis method. The method comprises the steps of ore pulp adjusting, ore pulp grading, ore pulp concentrating and drying. According to the process flow, the tin concentrate is balanced in amount, namely, tin concentrate is produced by adding tin concentrate, only tin concentrate of one grade is changed into tin concentrate of two grades, the grade of tin concentrate of each batch is different, so that the grade of tin concentrate of each batch is different, no medicament is used in the whole production process, no large-noise equipment is provided, and the purposes of low consumption, high efficiency, energy conservation and environmental protection are achieved.
Description
Technical Field
The invention belongs to the field of ore blending, and particularly relates to a method for obtaining two or more tin concentrates with different grades by carrying out compound ore blending through a physical hydrolysis method.
Background
The ore blending is also called ore quality neutralization, and aims to meet the requirement of ore quality indexes, and the ores with different grades are mutually matched in proportion and are uniformly mixed as much as possible. The existing ore blending mode is that two or more than two kinds of ores with different grades are mixed together according to the requirements of downstream technology and operation economic indexes to form an ore with a target grade, so as to achieve the aim of maximizing economic benefits. However, the method can only aim at one target product, namely only one ore is produced, the flow is increased, and the method is uneconomically applicable. In addition, ore blending enterprises need to prepare two or more ore raw materials to blend the required target ore, and the requirements on raw material storage of the enterprises and the cost and capital backlog are correspondingly high.
Disclosure of Invention
The invention relates to a novel process for obtaining two or more tin concentrates with different grades by carrying out compound ore blending on one grade of tin concentrate through physical hydrolysis, thereby achieving the maximization of economic benefit.
The invention relates to a tin concentrate compound ore blending method, which comprises the following steps:
s1, adjusting the pulp: adding water into raw material tin concentrate, and fully stirring into ore pulp with the weight concentration of 15-20%;
s2, classifying the ore pulp: classifying the ore pulp into low-grade ore pulp with the taste lower than 10% and high-grade ore pulp with the taste higher than 40% by adopting a centrifugal classifier;
s3, concentrating the ore pulp: concentrating the low-grade ore pulp and the high-grade ore pulp into concentrated ore pulp by adopting an inclined plate thickener;
s4, drying, and drying the concentrated ore pulp in a drying pool until the water content is 5-8% to form the product.
The drying pool is a pool-shaped evaporator and is divided into an upper layer and a lower layer, the upper layer is an ore pool, the lower layer is a heating pool, a hot air pipe is arranged in the heating pool in a snake shape, hot air is sent into the air pipe by an air heater, and cold air is recycled by a return air pipe;
fins are welded between the hot air pipes at intervals, two adjacent rows of fins are welded on the hot air pipes in a staggered mode, the welded fins and the hot air pipes are on the same horizontal plane, a steel heat conduction plate is fully welded on a plane formed by the heat conduction pipes and the fins, and an ore pond is arranged above the heat conduction plate.
The bottom of the pool is a heat preservation layer, the four walls of the pool are wrapped with a heat insulation layer, and the periphery of the pool is wrapped with bricks.
According to the process flow, the quantity of the tin concentrate is balanced, namely, the quantity of the tin concentrate is generated by feeding a quantity of the tin concentrate, only one grade of the tin concentrate is changed into two grades of the tin concentrate, and the grade of the tin concentrate of each batch is different because the grade of the tin concentrate purchased in each batch is different.
As the purchased raw material tin concentrate contains certain moisture, almost no dust is generated in the process of ore feeding, and the moisture of the product tin concentrate is kept at 5-8% in the hot air drying process, so that the product does not generate dust, the whole process flow of compound ore blending of the tin concentrate does not generate solid waste, waste water and waste gas, certain steam can be generated due to the fact that the drying temperature of a hot air drying pool is controlled below 100 ℃, no medicament is used in the whole production process, no large-noise equipment is provided, and therefore low consumption, high efficiency, energy conservation and environmental protection are achieved.
Drawings
FIG. 1 is a flowchart of embodiment 4 of the present invention.
Fig. 2 is a schematic view of the external structure of the drying tank.
FIG. 3 is a schematic view of the internal structure of the flood tank.
FIG. 4 is a schematic front view of the hot air tube, the fins and the heat conducting plate.
FIG. 5 is a schematic top view of the hot air pipes and fins.
The heat-insulating layer 3, the hot air pipe 4, the air heater 5, the heat-conducting plate 6, the fins 7, the return air pipe 8, the ore pond 9, the heating pond 10, the heat-insulating layer 11 and the bricks 12.
Detailed Description
Example 1: the tin concentrate compound ore blending has a large demand for low-grade ores with 10% of taste in the current market, so that the tin concentrate raw materials with 19.2% of taste are adopted for ore blending to produce tin concentrates with 10% of low taste and high-grade tin concentrates, and the method comprises the following specific steps:
and S1, feeding 1 ton of tin concentrate raw material to a belt feeding machine by using a loading machine, conveying the raw material to a weighing stirring barrel 1, adding 4 tons of water for fully stirring, wherein the stirring time is 3-6 minutes, the rotating speed of a stirrer is 60 revolutions per minute, and the stirred ore pulp is put into a weighing stirring barrel 2 and is conveyed to an ore pulp centrifugal classifier by a mortar pump.
And S2, adjusting the rotating speed of the centrifugal separator to 3 revolutions per minute, classifying the ore pulp separated by the ore pulp centrifugal classifier, collecting the high-grade ore pulp to the inclined plate thickener 1, and collecting the low-grade ore pulp to the inclined plate thickener 2. Wherein, the inclined plate thickener 2 is set to collect tin concentrate with 10 percent of taste, and other tin concentrate is collected into the inclined plate thickener 1.
S3, concentrating high-grade ore pulp by an inclined plate thickener 1, putting the concentrated ore pulp 1 into an ore settling hopper 1 for settling, taking out supernatant, putting the ore in the ore settling hopper 1 into a hot air drying pool 1 for drying, and cooling to form a product 1 when the ore is dried to contain 5-8% of water, so as to obtain 0.276 ton of tin concentrate with the taste of 43.32%;
the overflow water of the inclined plate thickener 1 automatically flows to a clarification tank, is pumped to an ore pulp centrifugal classifier by a variable frequency water pump to be used as ore flushing water, and the redundant part overflows to a water collecting tank to be used as ore pulp slurrying water.
S4, concentrating 10% low-grade ore pulp by an inclined plate thickener 2, putting the concentrated ore pulp 2 into an ore settling bucket 2 for settling, taking out upper clear water, putting the ore in the ore settling bucket 2 into a hot air drying pool 2 for drying, cooling to form a product 2 when the ore is dried to contain 5-8% of water, and obtaining 0.724 ton of tin concentrate with the taste of 10%;
wherein, the overflow water of the inclined plate thickener 2 automatically flows to the water tank for slurrying to be used as the water for ore blending slurry, or is put into a clarification tank and pumped to the water tank for slurrying.
After measurement and calculation, the tin concentrate is treated by the process of the invention, so that the value is greatly improved, and the measurement and calculation results are as follows:
as can be seen from the table, 1 ton of 19.2% raw material has the value improved by 1012 yuan.
In the invention, the hot air drying pool is a pool-shaped evaporator and is divided into an upper layer structure and a lower layer structure, wherein the upper layer is an ore pool 9, the lower layer is a heating pool 10, the bottom of the pool is a heat preservation layer 3, the walls of the pool are wrapped with a heat insulation layer 11, and the periphery of the pool is wrapped by bricks.
The heating pool 10 is provided with a hot air pipe 4 in a snake shape, hot air is sent into the pool by an air heater 5, and cold air is recycled by a return air pipe 8. Fins 7 are welded between the hot air pipes 4 at intervals, two adjacent rows of fins 7 are welded on the hot air pipes in a staggered mode, and the welded fins 7 and the hot air pipes 4 are on the same horizontal plane. The steel heat conduction plate 6 is fully welded to the plane formed by the heat conduction pipes 4 and the fins 7.
An ore pool 9 is arranged above the heat conducting plate 6, and when the drying is carried out, ore pulp is placed in the ore pool 9, and the heat conducting plate 6 is dried. The heat in the hot air pipe 4 is transferred to the ore pulp through the fins 7 and the heat conducting plate 6 to evaporate the water. When the water content of the ore pulp in the ore pool reaches 5-8%, the heating is stopped when the ore is in a block shape, and no dust is formed in the ore at the moment.
Wherein, the air heater is selected from fast air HAG-R35A44 or HAG-R35A 45. The inner diameter of each hot air pipe is 20cm, and the interval between every two adjacent hot air pipes is 40 cm. The fins are steel sheets, the thickness of each fin is 4mm, the width of each fin is 5cm, and the interval between the fins in the same row is 40 cm. The thickness of the steel plate selected for the heat conducting plate is 4 mm.
The fins, the heat conduction pipes and the heat conduction plate adopt the welding mode, so that the highest heat conduction efficiency and uniform heat conduction can be ensured, the uniformity of ore pulp drying can be ensured, the ore pulp drying is made to be blocky, no dust pollution is formed, and the transportation of the ore is facilitated.
Tin concentrate is a fine particle mineral, and dehydration of the fine particle mineral is a difficult problem, if a common dryer is adopted, the internal temperature of the dryer is not easy to control, harmful substances in the tin concentrate can volatilize to form pollution to the environment, and in addition, dust can be formed to cause air pollution. If the traditional equipment such as a belt filter, a ceramic filter and a plate-and-frame filter press is adopted for dehydration, the dehydrated mineral has high water content, cannot achieve the effect, is difficult to transport, increases the transportation cost, is easy to block, is difficult to maintain and the like.
The water of the whole process of the invention is recycled, and because the water brought away by the minerals and the water loss in the hot air drying process, the water for production circulation can not meet the requirement of making ore pulp by the stirring barrel 1, and is supplemented by the external water pipe network.
Example 2: the process flow is the same as that of example 1, the adopted raw materials are different, the target low-grade tin concentrate is still 10%, the collected high-grade tin concentrate is different, and the specific products and values are as follows:
as can be seen from the table, 1 ton of 37% raw material has the value improved 972 yuan.
Example 3: the process flow is the same as that of example 1, the adopted raw materials are different, the target low-grade tin concentrate is still 10%, the collected high-grade tin concentrate is different, and the specific products and values are as follows:
as can be seen from the table, 1 ton of 16.4 percent raw material has value improved by 703 yuan.
Example 4: tin concentrate compound ore blending is carried out, 19.2% grade tin concentrate raw materials are adopted for ore blending to produce 43.32% high-grade tin concentrate, and the produced low-grade tin concentrate is blended into 10% grade ore, and the method comprises the following specific steps:
and S1, feeding 1 ton of tin concentrate raw material to a belt feeding machine by using a loading machine, conveying the raw material to a weighing stirring barrel 1, adding 4 tons of water for fully stirring, wherein the stirring time is 3-6 minutes, the rotating speed of a stirrer is 60 revolutions per minute, and the stirred ore pulp is put into a weighing stirring barrel 2 and is conveyed to an ore pulp centrifugal classifier by a mortar pump.
And S2, adjusting the rotating speed of the centrifugal separator to 3 revolutions per minute, classifying the ore pulp separated by the ore pulp centrifugal classifier, setting the inclined plate thickener 1 to collect tin concentrate with 43.32 percent of taste, and collecting other tin concentrate into the inclined plate thickener 2.
S3, concentrating high-grade ore pulp by an inclined plate thickener 1, putting the concentrated ore pulp 1 into an ore settling hopper 1 for settling, taking out supernatant, putting the ore in the ore settling hopper 1 into a hot air drying pool 1 for drying, and cooling to form a product 1 when the ore is dried to contain 5-8% of water, so as to obtain 0.36 ton of tin concentrate with the taste of 43.32%;
the overflow water of the inclined plate thickener 1 automatically flows to a clarification tank, is pumped to an ore pulp centrifugal classifier by a variable frequency water pump to be used as ore flushing water, and the redundant part overflows to a water collecting tank to be used as ore pulp slurrying water.
S4, concentrating low-grade ore pulp by an inclined plate thickener 2, putting the concentrated ore pulp 2 into an ore settling bucket 2 for settling, taking out upper clear water, putting the ore in the ore settling bucket 2 into an ore blending pool, detecting that the grade is 5.63%, adding 0.304 ton of tin concentrate raw material with the grade of 19.2%, and blending into tin concentrate with the grade of 10%; then placing the prepared ore into a hot air drying pool 2 for drying, and cooling to form 0.944 ton of product when the ore is dried to contain 5-8% of water;
wherein, the overflow water of the inclined plate thickener 2 automatically flows to the water tank for slurrying to be used as the water for ore blending slurry, or is put into a clarification tank and pumped to the water tank for slurrying.
The drying pool is the same as the embodiment 1.
After measurement and calculation, the tin concentrate is treated by the process of the invention, so that the value is greatly improved, and the measurement and calculation results are as follows:
as can be seen from the table, 1.304 tons of 19.2% raw material has a value increased by 1323 yuan.
Claims (3)
1. The compound ore blending method for tin concentrate is characterized by comprising the following steps of:
s1, adjusting the pulp: adding water into raw material tin concentrate, and fully stirring into ore pulp with the weight concentration of 15-20%;
s2, classifying the ore pulp: classifying the ore pulp into low-grade ore pulp with the taste lower than 10% and high-grade ore pulp with the taste higher than 40% by adopting a centrifugal classifier;
s3, concentrating the ore pulp: concentrating the low-grade ore pulp and the high-grade ore pulp into concentrated ore pulp by adopting an inclined plate thickener;
s4, drying, and drying the concentrated ore pulp in a drying pool until the water content is 5-8% to form the product.
2. The compound tin concentrate ore blending method according to claim 1, wherein the drying tank is a tank-shaped evaporator and is divided into an upper layer and a lower layer, the upper layer is an ore tank, the lower layer is a heating tank, a hot air pipe is arranged in the heating tank in a serpentine manner, hot air is sent into the hot air pipe by a hot air blower, and cold air is recovered by a return air pipe;
fins are welded between the hot air pipes at intervals, two adjacent rows of fins are welded on the hot air pipes in a staggered mode, the welded fins and the hot air pipes are on the same horizontal plane, a steel heat conduction plate is fully welded on a plane formed by the heat conduction pipes and the fins, and an ore pond is arranged above the heat conduction plate.
3. The compound ore blending method for tin concentrate according to claim 2, wherein the bottom of the pond is a heat-insulating layer, and the heat-insulating layer is wrapped on the four walls of the pond, and the periphery of the pond is wrapped by brickwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211147.4A CN111085335A (en) | 2019-12-02 | 2019-12-02 | Compound ore blending method for tin concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211147.4A CN111085335A (en) | 2019-12-02 | 2019-12-02 | Compound ore blending method for tin concentrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111085335A true CN111085335A (en) | 2020-05-01 |
Family
ID=70394266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911211147.4A Pending CN111085335A (en) | 2019-12-02 | 2019-12-02 | Compound ore blending method for tin concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111085335A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61177334A (en) * | 1985-01-30 | 1986-08-09 | Nippon Kokan Kk <Nkk> | Treatment of sintering raw material |
| CN201583109U (en) * | 2009-09-30 | 2010-09-15 | 毛耀辉 | Flue gas waste heat multi-pipe drying heating furnace |
| CN202860276U (en) * | 2012-09-20 | 2013-04-10 | 云南华联锌铟股份有限公司 | Tin concentrate dewatering combination equipment |
| CN205718311U (en) * | 2016-03-14 | 2016-11-23 | 湖州荣能达燃料贸易有限公司 | A kind of colliery drying unit |
| CN207471989U (en) * | 2017-09-29 | 2018-06-08 | 广东晟凯金属实业有限公司 | A kind of hot air drying box |
| CN208998432U (en) * | 2018-08-16 | 2019-06-18 | 信阳成喜保温材料有限公司 | A kind of baking room using superheated steam |
| CN110170381A (en) * | 2019-05-09 | 2019-08-27 | 广东省资源综合利用研究所 | A kind of beneficiation method recycling cassiterite from tin copper mineral intergrowth |
| CN209485007U (en) * | 2018-12-27 | 2019-10-11 | 云南东道饲料有限公司 | Fast-drying device is used in a kind of production of rabbit feed |
| CN110479499A (en) * | 2019-07-22 | 2019-11-22 | 广东省资源综合利用研究所 | A method of Comprehensive Recovery of Ag, tin and iron from quartz vein banding pattern tailing |
-
2019
- 2019-12-02 CN CN201911211147.4A patent/CN111085335A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61177334A (en) * | 1985-01-30 | 1986-08-09 | Nippon Kokan Kk <Nkk> | Treatment of sintering raw material |
| CN201583109U (en) * | 2009-09-30 | 2010-09-15 | 毛耀辉 | Flue gas waste heat multi-pipe drying heating furnace |
| CN202860276U (en) * | 2012-09-20 | 2013-04-10 | 云南华联锌铟股份有限公司 | Tin concentrate dewatering combination equipment |
| CN205718311U (en) * | 2016-03-14 | 2016-11-23 | 湖州荣能达燃料贸易有限公司 | A kind of colliery drying unit |
| CN207471989U (en) * | 2017-09-29 | 2018-06-08 | 广东晟凯金属实业有限公司 | A kind of hot air drying box |
| CN208998432U (en) * | 2018-08-16 | 2019-06-18 | 信阳成喜保温材料有限公司 | A kind of baking room using superheated steam |
| CN209485007U (en) * | 2018-12-27 | 2019-10-11 | 云南东道饲料有限公司 | Fast-drying device is used in a kind of production of rabbit feed |
| CN110170381A (en) * | 2019-05-09 | 2019-08-27 | 广东省资源综合利用研究所 | A kind of beneficiation method recycling cassiterite from tin copper mineral intergrowth |
| CN110479499A (en) * | 2019-07-22 | 2019-11-22 | 广东省资源综合利用研究所 | A method of Comprehensive Recovery of Ag, tin and iron from quartz vein banding pattern tailing |
Non-Patent Citations (3)
| Title |
|---|
| 天津市水产学校: "《全国中等水产学校试用教材 制冷设备》", 30 September 1979, 农业出版社 * |
| 陈利生: "《火法冶金——备料与焙烧技术》", 30 April 2011, 冶金工业出版社 * |
| 黄金矿山实用手册编写组: "《黄金矿山实用手册》", 31 December 1990, 中国工人出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103848407B (en) | A kind of production method of monoammonium phosphate | |
| EP1712303B1 (en) | Method and device for collecting base paper for gypsum plaster board | |
| CN105645449B (en) | A kind of system and method for aluminium electrolytic carbon slag recycling ice crystal | |
| CN102965169A (en) | Manufacturing system of coal briquette for civilian use, and manufacturing method thereof | |
| CN103952167B (en) | A kind of energy saving and environment friendly low moisture coke making process and system | |
| CN111085335A (en) | Compound ore blending method for tin concentrate | |
| CN202626235U (en) | Equipment for producing steel-making slag former by virtue of steel-making sludge | |
| CN218424769U (en) | Carbide slag slurry processing system | |
| CN111298908A (en) | Production process for mixing and grinding steel slag, lithium slag, furnace slag and stone powder | |
| CN102719665B (en) | Process method for producing slag-forming agent for making steel by utilizing steel making sludge | |
| CN103755871B (en) | A kind of preparation method of high stability SBR styrene butadiene rubbers | |
| CN1562864A (en) | Method for fabricating clay brick by using sludge | |
| CN209522812U (en) | A kind of bilayer with dehydrating function slips burnt slot | |
| CN104261903B (en) | Process the method for potassium sulfate round shaped grain and used equipment | |
| CN101433261B (en) | Low temperature drying technique of ebullience hatch type fishmeal | |
| CN107617515A (en) | A kind of method that floating bead is extracted in flyash | |
| CN106675602A (en) | Charcoal production system and charcoal production method | |
| CN106397064A (en) | Method for producing biological organic fertilizer by using waste vegetable leaves as main material | |
| CN202660855U (en) | Efficient, energy-saving and environment friendly coal slime drying and processing system | |
| CN103739782A (en) | Environmental-friendly type styrene-butadiene rubber preparation method | |
| CN215162086U (en) | Sludge low-temperature dewatering and drying integrated machine | |
| CN105819448B (en) | A kind of method that high-purity carborundum is extracted from crystalline silicon cutting waste mortar | |
| CN216864276U (en) | Nickel-containing waste pretreatment equipment | |
| CN202936395U (en) | Civilian use coal briquette production system | |
| CN103739781A (en) | Non-contamination-type non-oil-charge type styrene-butadiene rubber preparation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200501 |