CN103472204A - Method for detecting ash content of floatation products - Google Patents

Method for detecting ash content of floatation products Download PDF

Info

Publication number
CN103472204A
CN103472204A CN2013104632862A CN201310463286A CN103472204A CN 103472204 A CN103472204 A CN 103472204A CN 2013104632862 A CN2013104632862 A CN 2013104632862A CN 201310463286 A CN201310463286 A CN 201310463286A CN 103472204 A CN103472204 A CN 103472204A
Authority
CN
China
Prior art keywords
coal
ash content
tailing
yield
floatation
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.)
Granted
Application number
CN2013104632862A
Other languages
Chinese (zh)
Other versions
CN103472204B (en
Inventor
魏昌杰
石焕
程宏志
张孝钧
宋云霞
刘春艳
杨茂清
史英祥
张鹏
刘万超
李红旗
程宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANDI (TANGSHAN) MINING TECHNOLOGY Co Ltd
Original Assignee
TIANDI (TANGSHAN) MINING TECHNOLOGY Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANDI (TANGSHAN) MINING TECHNOLOGY Co Ltd filed Critical TIANDI (TANGSHAN) MINING TECHNOLOGY Co Ltd
Priority to CN201310463286.2A priority Critical patent/CN103472204B/en
Publication of CN103472204A publication Critical patent/CN103472204A/en
Application granted granted Critical
Publication of CN103472204B publication Critical patent/CN103472204B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

The invention discloses a method for detecting the ash content of flotation products, belongs to the technical field of coal dressing methods, and aims to calculate the ash content of the flotation products according to the floatation clean coal yield and the tailing yield. According to the technical scheme, a flow meter and a densimeter are installed on a floatation feed and floatation tailing pipeline, the feed density, the feed flow, the tailing density and the tailing flow of detected products are detected, the clean coal yield and the tailing yield of the detected products are calculated; a relation curve of the statistic flotation clean coal yield and the ash content and a relation curve of the tailing yield and the ash content of coal quality are respectively drawn by the combination of laboratory statistic data of the products, and the clean coal ash content and the tailing ash content of the detected products are calculated according to the curves and the clean coal yield and the tailing yield of the detected products. The method has the advantages of being simple, rapid, convenient to conduct and accurate, is a brand new detection method and creativeness in the field of floatation ash content detection methods, and has great value and significance, and by the adoption of the method, China is made to be at the forefront of the world in the field of the floatation ash content detection methods.

Description

A kind of floating product ash content detection method
Technical field
The present invention relates to a kind of floating product ash content detection method, particularly a kind ofly can pass through floatation clean coal productive rate and tail coal productive rate, calculate the method for product ash content, belong to the coal preparation method technical field.
Background technology
Flotation is under the effect of medicament, according to the difference of mineral surface character, realizes the purpose that valuable mineral separates with useless mineral.The important indicator of weighing flotation is cleans ash and tail coal ash content, and cleans ash must be controlled in certain scope, and tailings ash content also must reach certain level.Coal preparation plant is generally to adopt these three steps of sampling-sample preparation-ashing to the measurement of cleaned coal and tail coal ash content at present, and the fastest also needs 1 hour.But this result of laboratory test is little to actual directive significance, lose this problem in order to stop cleaned coal, often rely on artificial knowhow judgement tailings ash content, judge whether to run coal.
Along with the development of automatic technology, people are making great efforts to propose a kind of new method always, to instruct better production.China has also made significant headway aspect control automatically in flotation in recent years, and most of automatically control is quantitative remedy-adding system to be introduced to floatation process control above, but quantitative dosing is controlled and could not be linked together with floatation indicators.At present, many mechanisms of the U.S. are carrying out carrying out after ore pulp surface shooting that image is processed and the technology of System Discrimination realizes the on-line analysis of metal content in some ore pulp again, Beijing Mine and Metallurgy General Inst is also carrying out the R&D work of similar techniques, because image technology needs the severe and system cost of iconic model, industrial production environment accurately higher, never in industrial extensive use.Other department of China and unit also attempt image technology is introduced on the mensuration of flotation tailing ash content, have no successfully and report for work up to now.
Current Floatation Process Theory and production practices all show, to same ature of coal, cleans ash and clean coal yield , the tail coal ash content
Figure 105903DEST_PATH_IMAGE003
with the tail coal productive rate
Figure 2013104632862100002DEST_PATH_IMAGE004
extremely strong corresponding relation is arranged.Therefore can be at the clean coal yield of obtaining detected sample
Figure 416799DEST_PATH_IMAGE002
with the tail coal productive rate
Figure 812008DEST_PATH_IMAGE004
after, try to achieve cleans ash by computing method
Figure 32905DEST_PATH_IMAGE001
with the tail coal ash content
Figure 386526DEST_PATH_IMAGE003
.The present invention inquires into according to such thinking, has obtained gratifying effect.
Summary of the invention
Technical matters to be solved by this invention be to provide a kind of simply, floating product ash content detection method fast and accurately.
The technical scheme solved the problems of the technologies described above is:
A kind of floating product ash content detection method comprises the following steps:
(1) flowmeter and densitometer are installed on floatation feed and flotation tailing pipeline, are detected the pan feeding density of test product
Figure 309352DEST_PATH_IMAGE005
, the pan feeding flow
Figure 2013104632862100002DEST_PATH_IMAGE006
, mine tailing density , the mine tailing flow ;
(2) data that step (1) detected are brought formula into
Figure 114814DEST_PATH_IMAGE009
with calculate the clean coal yield of test product
Figure 295128DEST_PATH_IMAGE002
with the tail coal productive rate
Figure 580616DEST_PATH_IMAGE004
;
(3), for the same ature of coal, under laboratory condition, carry out carrying out cleans ash in the little flotation test of many groups or daily production
Figure 724152DEST_PATH_IMAGE001
and clean coal yield
Figure 778696DEST_PATH_IMAGE002
, the tail coal ash content
Figure 208540DEST_PATH_IMAGE003
with the tail coal productive rate statistics, obtain little flotation experimental results or the clean coal yield of this coal quality statistic value of counting
Figure 912240DEST_PATH_IMAGE002
system, statistics tail coal productive rate
Figure 555711DEST_PATH_IMAGE004
system, and cleans ash
Figure 297402DEST_PATH_IMAGE001
system, the tail coal ash content
Figure 557482DEST_PATH_IMAGE003
systemdata, according to these statistics values, draw respectively the relation curve of statistics floatation clean coal productive rate-ash content of this ature of coal and the relation curve of tail coal productive rate-ash content;
(4) the statistics mine tailing productive rate of this ature of coal of drawing according to step (3)-ash content relation curve and clean coal yield-ash content relation curve, adopt data fitting method can obtain fitting function
Figure 292089DEST_PATH_IMAGE011
with , for the same ature of coal, a1, b1, c1 and a2, b2, c2 is well-determined, after ature of coal changes, need to re-start step (3) and step (4) is sought approximate formula,
(5), step (2) is drawn
Figure 321225DEST_PATH_IMAGE002
with formula in substitution step (4), just can obtain cleans ash respectively
Figure 981193DEST_PATH_IMAGE001
with the tail coal ash content
Figure 863698DEST_PATH_IMAGE003
.
Above-mentioned floating product ash content detection method, the densitometer of described floatation feed is arranged on the pipeline of floatation feed or, on supervisor's branch pipe(tube), the densitometer of flotation tailing is arranged on the pipeline of flotation tailing, and in pipeline, without bubble, pipe flow speed is even.
Above-mentioned floating product ash content detection method, the flowmeter of described floatation feed is arranged on the pipeline of floatation feed, and the flotation tailing flowmeter is arranged on the pipeline of flotation tailing, and pipeline is the rising full packages, and pipe flow speed is even.
The invention has the beneficial effects as follows:
The invention provides a kind of simple, fast, flotation ash content detection method accurately, this flotation ash content detection method is installed flowmeter and densitometer on floatation feed and flotation tailing pipeline, detect the pan feeding density of test product, the pan feeding flow, mine tailing density, the mine tailing flow, calculate clean coal yield by these data, the tail coal productive rate, and then draw respectively the relation curve of statistics floatation clean coal productive rate-ash content of this ature of coal and the relation curve of tail coal productive rate-ash content in conjunction with the laboratory statistical data of this product, clean coal yield according to these curves and test product, the tail coal calculation of yield goes out the cleans ash of test product, the tail coal ash content.The present invention has simply, and characteristics, be brand-new a kind of detection method fast, conveniently and accurately, is the innovation in flotation ash content detection method field, has very large value and significance, and China is walked in the prostatitis in the world in flotation ash content detection method field.
The accompanying drawing explanation
Fig. 1 is the relation curve of clean coal yield-cleans ash of the statistics of certain ature of coal;
Fig. 2 is the relation curve of the tail coal productive rate-tail coal ash content of the statistics of certain ature of coal.
Embodiment
Flotation tailing ash content detection method of the present invention need to be used two kinds of instrument, and a kind of is densitometer, and another kind is flowmeter.Densitometric kind is more, comprises the radioactive source densitometer, and vibration densitometer and pressure reduction class densitometer, can be chosen according to actual conditions.Flowmeter can be selected and measure the widely used electromagnetic flowmeter of fluid.
The present invention adopts following steps:
(1) the Density Detection densitometer of floatation feed is arranged on the pipeline of floatation feed or, on supervisor's branch pipe(tube), the densitometer of flotation tailing is arranged on the pipeline of flotation tailing, needs to guarantee in pipeline that, without bubble, pipe flow speed is even.
The flowmeter of floatation feed is arranged on the pipeline of floatation feed, and pipeline is required to be the rising full packages, and pipe flow speed is even, and the flotation tailing flowmeter is arranged on the pipeline of flotation tailing, and also needing pipeline is full packages and increase in pipeline.The operating specification of detailed fitting operation instrument and meter.
(2) the pan feeding density that floatation feed and flotation tailing densitometer and flowmeter detect
Figure 871975DEST_PATH_IMAGE005
, the pan feeding flow
Figure 814523DEST_PATH_IMAGE006
, mine tailing density
Figure 783616DEST_PATH_IMAGE007
with the mine tailing flow
Figure 204233DEST_PATH_IMAGE008
the substitution formula
Figure 83327DEST_PATH_IMAGE009
with
Figure 196777DEST_PATH_IMAGE010
calculate the clean coal yield of flotation
Figure 653166DEST_PATH_IMAGE002
with the tail coal productive rate
Figure 877474DEST_PATH_IMAGE004
.
(3) for a certain ature of coal, clean coal yield
Figure 594763DEST_PATH_IMAGE002
and cleans ash , the tail coal productive rate
Figure 822799DEST_PATH_IMAGE004
with the tail coal ash content
Figure 850798DEST_PATH_IMAGE003
characteristics with unique corresponding relation carry out carrying out cleans ash in the little flotation test of many groups or daily production under laboratory condition
Figure 438905DEST_PATH_IMAGE001
and clean coal yield
Figure 628578DEST_PATH_IMAGE002
, the tail coal ash content
Figure 59559DEST_PATH_IMAGE003
with the tail coal productive rate
Figure 625670DEST_PATH_IMAGE004
statistics, obtain little flotation experimental results or the clean coal yield of this coal quality statistic value of counting system, statistics tail coal productive rate
Figure 943705DEST_PATH_IMAGE004
system, and cleans ash
Figure 861982DEST_PATH_IMAGE001
system, the tail coal ash content
Figure 231784DEST_PATH_IMAGE003
systemdata, according to these statistics values, draw respectively the relation curve of statistics floatation clean coal productive rate-ash content of this ature of coal and the relation curve of tail coal productive rate-ash content.
(4) the statistics mine tailing productive rate of this ature of coal of drawing according to step (3)-ash content relation curve and clean coal yield-ash content relation curve, adopt data fitting method can obtain the approximate formula of this curve
Figure 528904DEST_PATH_IMAGE011
with
Figure 325959DEST_PATH_IMAGE012
,for same ature of coal, a 1, b 1, c 1and a 2, b 2, c 2can determine, after ature of coal changes, need to re-start step (3) and step (4) is sought approximate formula.
(5) step (2) is drawn
Figure 465953DEST_PATH_IMAGE002
with formula in substitution step (4), just can obtain cleans ash respectively
Figure 317638DEST_PATH_IMAGE001
with the tail coal ash content
Figure 285594DEST_PATH_IMAGE003
.
Different atures of coal need to be sought new approximate formula, and other measuring methods are identical with computing method.

Claims (3)

1. a floating product ash content detection method is characterized in that: comprise the following steps:
(1) flowmeter and densitometer are installed on floatation feed and flotation tailing pipeline, are detected the pan feeding density of test product , the pan feeding flow
Figure 772259DEST_PATH_IMAGE002
, mine tailing density
Figure 2013104632862100001DEST_PATH_IMAGE003
, the mine tailing flow
Figure 890388DEST_PATH_IMAGE004
;
(2) data that step (1) detected are brought formula into
Figure 2013104632862100001DEST_PATH_IMAGE005
with
Figure 942526DEST_PATH_IMAGE006
calculate the clean coal yield of test product
Figure 2013104632862100001DEST_PATH_IMAGE007
with the tail coal productive rate ;
In above-mentioned formula,
Figure 195970DEST_PATH_IMAGE007
for clean coal yield,
Figure 852211DEST_PATH_IMAGE008
for the tail coal productive rate,
Figure 837484DEST_PATH_IMAGE001
for pan feeding density,
Figure 678401DEST_PATH_IMAGE002
for the pan feeding flow,
Figure 749125DEST_PATH_IMAGE003
for mine tailing density,
Figure 458324DEST_PATH_IMAGE004
for the mine tailing flow:
(3), for the same ature of coal, under laboratory condition, carry out carrying out cleans ash in the little flotation test of many groups or daily production
Figure 2013104632862100001DEST_PATH_IMAGE009
and clean coal yield
Figure 829263DEST_PATH_IMAGE007
, the tail coal ash content
Figure 309923DEST_PATH_IMAGE010
with the tail coal productive rate
Figure 8888DEST_PATH_IMAGE008
statistics, obtain little flotation experimental results or the clean coal yield of this coal quality statistic value of counting system, statistics tail coal productive rate
Figure 91431DEST_PATH_IMAGE008
system, and cleans ash
Figure 742992DEST_PATH_IMAGE009
system, the tail coal ash content
Figure 444101DEST_PATH_IMAGE010
systemdata, according to these statistics values, draw respectively the relation curve of statistics floatation clean coal productive rate-ash content of this ature of coal and the relation curve of tail coal productive rate-ash content;
(4) the statistics mine tailing productive rate of this ature of coal of drawing according to step (3)-ash content relation curve and clean coal yield-ash content relation curve, adopt data fitting method can obtain the approximate formula of this curve
Figure 2013104632862100001DEST_PATH_IMAGE011
with
Figure 370468DEST_PATH_IMAGE012
for same ature of coal, a 1, b 1, c 1and a 2, b 2, c 2can determine, after ature of coal changes, need to re-start step (3) and step (4) is sought approximate formula; Be respectively coefficient;
In above-mentioned formula,
Figure 856945DEST_PATH_IMAGE009
for cleans ash, the tail coal ash content
Figure 944986DEST_PATH_IMAGE010
for the tail coal ash content, for clean coal yield, for tail coal productive rate, a 1,b 1,c 1,a 2,b 2,c 2be respectively coefficient:
(5), step (2) is drawn
Figure 407695DEST_PATH_IMAGE007
with
Figure 666638DEST_PATH_IMAGE008
formula in substitution step (4), just can obtain cleans ash respectively
Figure 952125DEST_PATH_IMAGE009
with the tail coal ash content .
2. floating product ash content detection method according to claim 1 is characterized in that: the densitometer of described floatation feed is arranged on the pipeline of floatation feed or, on supervisor's branch pipe(tube), the densitometer of flotation tailing is arranged on the pipeline of flotation tailing.
3. floating product ash content detection method according to claim 2, it is characterized in that: the flowmeter of described floatation feed is arranged on the pipeline of floatation feed, and the flotation tailing flowmeter is arranged on the pipeline of flotation tailing.
CN201310463286.2A 2013-10-08 2013-10-08 Method for detecting ash content of floatation products Active CN103472204B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310463286.2A CN103472204B (en) 2013-10-08 2013-10-08 Method for detecting ash content of floatation products

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310463286.2A CN103472204B (en) 2013-10-08 2013-10-08 Method for detecting ash content of floatation products

Publications (2)

Publication Number Publication Date
CN103472204A true CN103472204A (en) 2013-12-25
CN103472204B CN103472204B (en) 2015-04-01

Family

ID=49797131

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310463286.2A Active CN103472204B (en) 2013-10-08 2013-10-08 Method for detecting ash content of floatation products

Country Status (1)

Country Link
CN (1) CN103472204B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384026A (en) * 2014-10-20 2015-03-04 山西大学 Graphic control method for direct floatation of potassium chloride and sodium chloride mixed salt
CN105547917A (en) * 2016-02-22 2016-05-04 天地（唐山）矿业科技有限公司 Automatic detection method for coal product ash content
CN107377228A (en) * 2017-08-02 2017-11-24 太原理工大学 The method of testing of bubble particles adhesion collision behavior in coal slime flotation
CN110893377A (en) * 2019-12-30 2020-03-20 天津美腾科技有限公司 Coarse slime sorting system and method
CN113310842A (en) * 2021-05-27 2021-08-27 冀中能源股份有限公司 Test method for obtaining coal powder floatability
CN116882849A (en) * 2023-09-07 2023-10-13 天津美腾科技股份有限公司 Method and device for measuring and calculating yield of clean coal

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214452A (en) * 1997-10-15 1999-04-21 路迈西 Determination of float-and-sink composition of coal based on its ash content
JP2007046991A (en) * 2005-08-09 2007-02-22 Chugoku Electric Power Co Inc:The Property evaluating method of fly ash, property evaluation device of fly ash, coal mixing ratio calculating method of coal, coal mixing ratio calculator of coal and coal mixing ratio calculating program of coal
CN101382556A (en) * 2008-09-28 2009-03-11 山西潞安矿业(集团)有限责任公司 Soft measurement method for floating fine coal ash from slurry based on data drive

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214452A (en) * 1997-10-15 1999-04-21 路迈西 Determination of float-and-sink composition of coal based on its ash content
JP2007046991A (en) * 2005-08-09 2007-02-22 Chugoku Electric Power Co Inc:The Property evaluating method of fly ash, property evaluation device of fly ash, coal mixing ratio calculating method of coal, coal mixing ratio calculator of coal and coal mixing ratio calculating program of coal
CN101382556A (en) * 2008-09-28 2009-03-11 山西潞安矿业(集团)有限责任公司 Soft measurement method for floating fine coal ash from slurry based on data drive

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
刘旌等: "在线预测原煤浮沉组成的方法", 《煤炭科学与技术》 *
徐凤等: "煤泥可浮性曲线的绘制及应用", 《煤炭加工与综合利用》 *
陈贵烽等: "浮选过程工艺参数的控制与调节", 《煤炭科学与技术》 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104384026A (en) * 2014-10-20 2015-03-04 山西大学 Graphic control method for direct floatation of potassium chloride and sodium chloride mixed salt
CN104384026B (en) * 2014-10-20 2016-08-17 山西大学 A kind of for direct flotation potassium chloride and sodium chloride salt-mixture figure regulation and control method
CN105547917A (en) * 2016-02-22 2016-05-04 天地（唐山）矿业科技有限公司 Automatic detection method for coal product ash content
CN107377228A (en) * 2017-08-02 2017-11-24 太原理工大学 The method of testing of bubble particles adhesion collision behavior in coal slime flotation
CN110893377A (en) * 2019-12-30 2020-03-20 天津美腾科技有限公司 Coarse slime sorting system and method
CN113310842A (en) * 2021-05-27 2021-08-27 冀中能源股份有限公司 Test method for obtaining coal powder floatability
CN116882849A (en) * 2023-09-07 2023-10-13 天津美腾科技股份有限公司 Method and device for measuring and calculating yield of clean coal
CN116882849B (en) * 2023-09-07 2023-12-19 天津美腾科技股份有限公司 Method and device for measuring and calculating yield of clean coal

Also Published As

Publication number Publication date
CN103472204B (en) 2015-04-01

Similar Documents

Publication Publication Date Title
CN103472204B (en) Method for detecting ash content of floatation products
CN102445244B (en) Ore slurry online detection device and multi-parameter detection method
CN102671773A (en) Automatic control process for coal slime flotation
WO2007033415A1 (en) A method of analysis and an analyser
CN104234691B (en) On-line multiphase flowmeter during a kind of high-precision real for oil field
CN106404134A (en) Method and device for measuring mass of solid in solid and liquid mixture
CN204165794U (en) A kind of sampling pulp reduction device
CN201007666Y (en) Mine slurry continuously autoweighing device
CN104267158A (en) Steel slag pressurized hot and stuffy gas composition online monitoring device and method
CN204583512U (en) A kind of hydrocyclone overflow granularity measurement mechanism
CN101806790B (en) Multi-channel fluid distribution device
CN110487850A (en) A kind of degassing conductivity measurement system and method
CN105510181A (en) Method for quickly detecting total iron grades of hematite concentrates
CN208297412U (en) A kind of high-salt wastewater total dissolved solidss measuring instrumentss
CN101509863B (en) Device for detecting viscosity and density of suspensoid media by drop manner
CN204988956U (en) Yellow river pai shadong silt content measurement system
CN201107084Y (en) Material position testing apparatus of aluminum cell material box
CN201637510U (en) On-line liquid cement grinding additive detection device
CN202351147U (en) On-line density measuring device for crude oil
CN208476321U (en) A kind of monitoring system of city dweller's water flow
CN208588578U (en) A kind of sensing water content mixed in oil detection device of the interval sampling with bubble separation
CN203299131U (en) Online testing device for flotation tailing ash content
CN106269220A (en) A kind of cyclone overflow mineral-feeding pipe road
CN106979906B (en) Single-well crude oil water content online weighing measurement system and method
CN204116322U (en) A kind of slag has the hot sulks Body components on-Line Monitor Device of pressure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant