CN105651929A - Intelligent cupellation furnace for fire assaying - Google Patents
Intelligent cupellation furnace for fire assaying Download PDFInfo
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- CN105651929A CN105651929A CN201610117155.2A CN201610117155A CN105651929A CN 105651929 A CN105651929 A CN 105651929A CN 201610117155 A CN201610117155 A CN 201610117155A CN 105651929 A CN105651929 A CN 105651929A
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- lation
- burner hearth
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
Abstract
The invention relates to noble metal purity detection apparatus, in particular to an intelligent cupellation furnace for fire assaying, comprising a floor body and characterized in that the upper portion of the body is provided with a hearth, the lower portion of the body is provided with an intake pipe in communication with the hearth, the rear of the hearth is provided with an air inlet in communication with an exhaust pipe, and a gas guide plate is disposed in front of the air outlet; both upper and lower surfaces of the hearth are fitted with soaking plates, and spiral electrothermal tubes are horizontally inset outside the soaking plates. This furnace is simple in structure, convenient to operate and scientific and reasonable in design, enables more elaborate and precise temperature control, has better cupellation effect, has reliable and stable testing results and can minimize the harm of lead gas, thus protecting both human body health and environment.
Description
(1) technical field
The present invention relates to Purity of Noble Metals detection equipment, particularly to a kind of intelligent Fire Assaying cupel(lation) furnace.
(2) background technology
Fire assaying is a kind of dense poly-method of liquid-liquid high-temperature extraction, and method is quick, decomposes sample complete, adaptable to various samples. Fire assaying has the method such as plumbous ensaying, antimony ensaying, measures conventional plumbous ensaying method the most classical during gold.
Fire Assaying (plumbous ensaying) method is a kind of with lead, gold to be separated the most frequently used simplicity and efficiently separates means, and its key technology is in that ash blows over journey, therefore also referred to as cupullation. Cupullation is a kind of ancient isolation technics, and its principle is; The golden sample being wrapped in lead foil is placed on cupel and is placed in cupel(lation) furnace, at high temperature by melting and carrying out oxidation blowing. Oxygen in air makes to melt impurity element oxidation in lead and gold sample and generates oxide and then absorbed by cupel, and gold is not easily oxidized with the silver added in advance, forms comparatively pure electrum grain and stays on cupel.
The outer popular gold ornament of Present Domestic is fashionable, various in style, and kind is many such as stars, and moulding is in different poses and with different expressions. Its gold content is low to moderate 9K(,375 ��), up to 999.9 ��, so that corresponding detection technique difficulty is greatly improved, formulate the examination criteria of correspondence for this country. But explicitly pointing out GB/T9288-2006 " the mensuration cupullation (fire assaying) of billon jewelry gold content " in GB GB11887-2012 " regulation of jewelry Purity of Noble Metals and name " and specify the referee method that in billon jewelry, gold content is analyzed, it is applicable to gold content 333.0 �롫999.5 ��. The fire assaying special status in this field and importance are thus established.
So far not yet having domestic commercialization Fire Assaying cupel(lation) furnace to list through looking into domestic gold jewelry analysis field, in gold jewelry, Fire Assaying analysis adopts domestic high temperature Muffle furnace replace or purchase import cupel(lation) furnace more. Domestic high temperature Muffle furnace is only capable of satisfied temperature needs, but ash cannot be provided to blow over required oxidizing gas stream in journey, reduces quality and effect that ash blows. Import cupel(lation) furnace is currently known an only brand and is available for choosing, and price is very high, reaches domestic high temperature Muffle furnace thirtyfold, causes medium-sized and small enterprises to be difficult to bear. The domestic specialized Fire Assaying cupel(lation) furnace that Present Domestic gold jewelry analysis field urgent needs cost performance is high, and its performance of the equipment of the application meets this requirement well.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of fine structure, environment protection health, long service life intelligent Fire Assaying cupel(lation) furnace.
The present invention is achieved through the following technical solutions:
A kind of intelligent Fire Assaying cupel(lation) furnace, including console model main body, it is characterised in that: described body top is provided with burner hearth, lower body part electrical control cabinet, and the right arranged outside of main body has central controller; Lower body part is provided with connection air inlet pipe within burner hearth, and burner hearth rear portion is provided with the air outlet slit of connection escape pipe, is provided with gas guide board before air outlet slit; Burner hearth upper and lower surface is respectively arranged with soaking plate, and the outer level of soaking plate is inlaid with spiral electrothermal tube.
The present invention is console model all-in-one, compact conformation, and ratio is reasonable, it is simple to mobile arrangement is convenient. Burner hearth is respectively arranged with soaking plate up and down, and the outer level of soaking plate inlays speciality spiral electrothermal tube, utilizes radiation heating to improve in-furnace temperature, but not during electric heating, medium is vertically exposed to electrified regulation in burner hearth after energising; The upper and lower radiant heating pattern of soaking plate of the present invention can effectively reduce and arrange elimination in-furnace temperature gradient, its identical At The Height furnace temperature of any point in whole stove is made all to have good temperature homogeneity, in stove, the temperature difference is less than 2 degree, can receive desirable ash and blow effect, and eliminate potential safety hazard; Gas guide board guides hot-air to sink to pressing close to cupel plate and play guide effect, forms furnace air circulation passage.
The present invention has given prominence to the key points and has aoxidized the theory that ash blows, and round controllable type furnace air gas circuit and Intelligent ash wind drift journey auto-controll operation program two principal themes, has carried out meticulous development, repetition test. Through a large amount of gold sample survey working practice checkings for a long time of enterprise's laboratory, all achieve satisfied achievement blow efficiency and effect, environmental protection and production cost at ash in, reached intended purpose.
The more excellent technical scheme of the present invention is:
The plumbous box of collection it is provided with, for collecting the Hydrocerussitum (Ceruse) depositing in escape pipe bottom described escape pipe.
It is provided with the special load sample platform of sample in the middle part of described main body, can upwards rout up during use, it is simple to taking and placing sample.
Equipped with glass window on the fire door of described burner hearth, can observe at any time and regulate and control ash and blow over journey, it is simple to experimenter's control to analyzing result.
Described air inlet pipe is arranged on air inlet pipe and regulates on guide rail, and air inlet pipe front end is provided with flow control valve, and air inlet pipe rear end is connected to burner hearth bottom, can be conveniently adjusted position and the air inflow of air inlet pipe.
Described escape pipe is provided with escape pipe valve, coordinates Flow-rate adjustment, it is simple to the precipitation of Hydrocerussitum (Ceruse) dirt.
Described spiral electrothermal tube, flow control valve and escape pipe valve connect central controller respectively and achieve higher automatic controlling level, and degree setting steps refines, and specification understands easily operation.
The mentality of designing of the present invention is:
(1) controllable type air gas circuit; Principle and the needs of energy-conservation intensification are blown according to oxidation ash, air duct energy-conservation intensification is closed during intensification, place sample and blow the unlatching of stage air passage with ash, import the preheated air that oxidation is required, devise for this with being adjustable into the admission line of tolerance and there is the outlet pipe of switch. In furnace air passage, in burner hearth, before rearward air outlet, have developed special gas flow guiding assembly, the inclined-plane gas guide board that this assembly tilts to air duct direction specially, play the guiding role, guide hot-air to sink to pressing close to cupel plate.Form furnace air gas circuit after fire door when closing, making to be placed on cupel and be enclosed with the shot surface of gold sample can touch the oxygen of abundance, blowing thus completing oxidation ash.
Fire Assaying cupel(lation) furnace must be placed under powerful exhaust hood. After closing fire door, forming nearly furnace air gas circuit two meters long, the escape pipe being arranged on cupel(lation) furnace top defines certain air draft under exhaust hood brute force pump drainage, is negative pressure in whole air loop from top to bottom. Even without outside air draft, remain in whole air duct produce certain upwards draft naturally, so charge flow rate is carried out regulation and control is requisite.
This air gas circuit air inlet pipe is arranged on air inlet pipe and regulates on guide rail, and is provided with flow control valve in air inlet pipe, can adjust position and the air inflow of air inlet pipe as required. Escape pipe is provided with escape pipe controlled valve, fits into throughput and regulates, it is simple to controls the sedimentation of oxidizing gas stream flow and Hydrocerussitum (Ceruse) dirt.
(2) Intelligent ash wind drift journey auto-controll operation program; Blow over the needs of the various change of journey according to whole ash, blow operating process in conjunction with oxidation ash, in line with as much as possible, some operation is converted into and automatically runs and take into account energy-conservation principle, the intelligentized ash wind drift journey auto-controll operation program of design compilation. This program is that degree of specialization is high, domestic initiation is grey blows flow control software. Full Chinese touch screen operation interface, man-machine dialog interface is friendly, and specification understands simple and practical, and laboratory operating procedures refines, and parameter is arbitrarily variable to be compiled, it is simple to realize the Fire Assaying experiment of polytype sample. Program interface is provided with and shows curve in real time, program operation phase and parameter can be visually observed that.
Owing to some operating procedure has been enrolled operation program, thus simplifying manual operation, effectively reduce labor intensity and the injury to human body of the Hydrocerussitum (Ceruse) dirt.
(3) modularity chamber design; It is easy to maintenance maintenance, the soaking plate of internal four walls of fast changeable burner hearth, solve burner hearth inside ceiling panel and be subject to a difficult problem for melt oxidation lead contamination difficulty cleaning. Equipped with glass window on fire door, can observe at any time and regulate and control ash and blow over journey, it is simple to experimenter's control to analyzing result.
(4) automatic control heater circuit; Adopt and gradually pass formula increase power control burner hearth heating rate stage by stage, efficiently avoid the damage that electrothermal tube is caused by high-power steep temperature rise, extend the life-span of spiral electrothermal tube, reduce fault rate and the potential safety hazard of equipment, it is ensured that electrical safety.
Present configuration is simple, easy to operate, and design science is reasonable, and temperature control is finer, and accurately ash blows effect more preferably, and result of the test is reliable and stable, the harm of lead gas is preferably minimized, reaches the dual purpose of health and environmental conservation.
(4) accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the A-A face generalized section shown in Fig. 1.
In figure, 1 main body, 2 burner hearths, 3 air inlet pipe, 4 escape pipes, 5 air outlet slits, the 6 plumbous boxes of collection, 7 soaking plate, 8 spiral electrothermal tubes, 9 gas guide boards, 10 glass windows, 11 air inlet pipe regulate guide rail, 12 flow control valves, 13 escape pipe valves, 14 electrical control cabinets, 15 central controllers, the 16 special load sample platforms of sample.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention. This embodiment includes console model main body 1, and described main body 1 top is provided with burner hearth 2, main body 1 lower electrical switch board 14, and the right arranged outside of main body 1 has central controller 15;Main body 1 bottom is provided with connection air inlet pipe 3 within burner hearth 2, and burner hearth 2 rear portion is provided with the air outlet slit 5 of connection escape pipe 4, is provided with gas guide board 9 before air outlet slit 5; Burner hearth 2 upper and lower surface is respectively arranged with soaking plate 7, and the outer level of soaking plate 7 is inlaid with spiral electrothermal tube 8; The plumbous box 6 of collection it is provided with bottom described escape pipe 4; The special load sample platform 16 of sample it is provided with in the middle part of described main body 1; Equipped with glass window 10 on the fire door of described burner hearth 2; Described air inlet pipe 3 is arranged on air inlet pipe and regulates on guide rail 11, and air inlet pipe 3 front end is provided with flow control valve 12, and air inlet pipe 3 rear end is connected to bottom burner hearth 2; Described escape pipe 4 is provided with escape pipe valve 13; Described spiral electrothermal tube 8, flow control valve 12 and escape pipe valve 13 connect central controller 15 respectively.
The present invention is console model all-in-one, compact conformation, and ratio is reasonable, it is simple to mobile, and it is convenient to dispose. Overall dimensions (mm): 1670 �� 870 �� 900 (height �� wide �� depths); Weight is about: 330KG. Its structural design optimization, homoiothermic control airway dysfunction is complete, and with regulation and control accurately (maximum temperature 1200 DEG C, temperature-controlled precision��2 DEG C), good heat insulating, furnace temperature fluctuation scope is little in temperature instruction. Automatic controlling level is high, and program setting steps refines, and specification understands easily operation. The electrum grain appearance display body that ash is formed after blowing is uniform, and mellow and full full, sphere is bright and clean, and metal-like is strong.
The modularized design of burner hearth 2 uniqueness, it is simple to maintenance maintenance, the soaking plate 7 of internal four walls of fast changeable road side market pipe, solve burner hearth inside ceiling panel and be subject to a difficult problem for melt oxidation lead contamination difficulty cleaning. When fire door is closed, the gas guide board 9 of setting, in the guiding burner hearth 2 that play the guiding role, hot-air sinks to pressing close to cupel plate, forms furnace air gas circuit (see arrow mark part). Burner hearth 2 four wall has soaking plate 7, and outside soaking plate 7, level inlays special spiral electrothermal tube 8, utilizes soaking plate 7 radiation heating to improve in-furnace temperature, and non-perpendicular electrothermal device is directly exposed to electrified regulation in burner hearth 2 after energising. This kind of soaking plate about 7 radiant heating pattern can effectively reduce in-furnace temperature gradient, its horizontal plane furnace temperature of any point in whole stove is made all to have good temperature homogeneity, temperature difference < 2 DEG C in stove, can receive desirable ash and blow effect, and eliminate potential safety hazard. Fire door, equipped with glass window 10, can be observed at any time and regulate and control ash and blow over journey, it is simple to experimenter's control to analyzing result.
Its major design scheme is:
(1) console model all-in-one, compact conformation ratio is reasonable, it is simple to mobile arrangement is convenient;
(2) controllable type air gas circuit, principle and the needs of energy-conservation intensification are blown according to oxidation ash, air duct energy-conservation intensification is closed during intensification, open passage when placing sample and reduce the plumbous injury to human body, ash blows stage importing oxidation required air stream, and by special gas flow guiding assembly, its inclined-plane deflector plays guiding hot-air and sinks to pressing close to cupel plate, improve ash and blow effect, form furnace air gas circuit;
(3) Intelligent ash wind drift journey auto-controll operation program; In line with as much as possible, some operation is converted into and automatically runs and take into account energy-conservation principle, work out intelligentized ash wind drift journey auto-controll operation program;
(4) modularity burner hearth 2 structure; Solve burner hearth 2 inside ceiling panel and be subject to a difficult problem for melt oxidation lead contamination difficulty cleaning, it is simple to maintenance maintenance;
(5) automatic control heater circuit; The fault rate of reduction equipment and potential safety hazard, it is ensured that electrical safety;
(6) burner hearth 2 inwall is regular oblong, it is simple to form horizontal plane stratosphere.
The present invention meets the technology requirement of GB GB/T9288 " the mensuration cupullation (fire assaying) of billon jewelry gold content " comprehensively, highlight the theory that oxidation ash blows, Fire Assaying ash blows efficiency and is greatly improved, overall performance is significantly better than common high temperature Muffle furnace, more applicable than external similar cupel(lation) furnace, for first professional intelligent Fire Assaying cupel(lation) furnace domestic.
Claims (7)
1. an intelligent Fire Assaying cupel(lation) furnace, including console model main body (1), it is characterised in that: described main body (1) top is provided with burner hearth (2), main body (1) lower electrical switch board (14), and main body (1) right arranged outside has central controller (15); Main body (1) bottom is provided with the air inlet pipe (3) that connection burner hearth (2) is internal, and burner hearth (2) rear portion is provided with the air outlet slit (5) of connection escape pipe (4), and air outlet slit (5) is front is provided with gas guide board (9); Burner hearth (2) upper and lower surface is respectively arranged with soaking plate (7), and soaking plate (7) outer level is inlaid with spiral electrothermal tube (8).
2. intelligent Fire Assaying cupel(lation) furnace according to claim 1, it is characterised in that: described escape pipe (4) bottom is provided with the plumbous box (6) of collection.
3. intelligent Fire Assaying cupel(lation) furnace according to claim 1, it is characterised in that: described main body (1) middle part is provided with the special load sample platform (16) of sample.
4. intelligent Fire Assaying cupel(lation) furnace according to claim 1, it is characterised in that: equipped with glass window (10) on the fire door of described burner hearth (2).
5. intelligent Fire Assaying cupel(lation) furnace according to claim 1, it is characterized in that: described air inlet pipe (3) is arranged on air inlet pipe and regulates on guide rail (11), and air inlet pipe (3) front end is provided with flow control valve (12), air inlet pipe (3) rear end is connected to burner hearth (2) bottom.
6. intelligent Fire Assaying cupel(lation) furnace according to claim 1, it is characterised in that: described escape pipe (4) is provided with escape pipe valve (13).
7. the intelligent Fire Assaying cupel(lation) furnace according to claim 1,4 or 5, it is characterised in that: described spiral electrothermal tube (8), flow control valve (12) and escape pipe valve (13) connect central controller (15) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610117155.2A CN105651929B (en) | 2016-03-02 | 2016-03-02 | Intelligent Fire Assaying cupel(lation) furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610117155.2A CN105651929B (en) | 2016-03-02 | 2016-03-02 | Intelligent Fire Assaying cupel(lation) furnace |
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| CN105651929A true CN105651929A (en) | 2016-06-08 |
| CN105651929B CN105651929B (en) | 2017-07-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490653A (en) * | 2017-03-10 | 2017-12-19 | 北矿检测技术有限公司 | A kind of cupel(lation) furnace |
| CN110186281A (en) * | 2019-06-25 | 2019-08-30 | 北矿检测技术有限公司 | A kind of controllable supplementary air type cupel(lation) furnace |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US704198A (en) * | 1901-09-24 | 1902-07-08 | David Laird | Cupellation-furnace. |
| RU1540299C (en) * | 1987-12-11 | 1993-12-30 | Центральный научно-исследовательский геологоразведочный институт цветных и благородных металлов | Method and apparatus for cupellation of crude leads |
| CN2235106Y (en) * | 1995-06-09 | 1996-09-11 | 北京天翼科贸公司 | Electric-heating diaphragm gradient temperature-controlling uniform coated stove |
| CN1945273A (en) * | 2006-09-28 | 2007-04-11 | 江西铜业集团公司贵冶分公司 | Method for detecting high content gold by fire assaying |
| CN201581120U (en) * | 2009-11-25 | 2010-09-15 | 郴州市金贵银业股份有限公司 | Silver smelting furnace |
| CN201935562U (en) * | 2011-03-13 | 2011-08-17 | 杨龙安 | Oxygen filling, warming, strengthening, metal melting, fuming and volatilizing device of side-blown smelting furnace |
| CN202898496U (en) * | 2012-11-13 | 2013-04-24 | 永兴县庚仁银业有限责任公司 | Cupellation furnace |
| CN103629928A (en) * | 2012-08-27 | 2014-03-12 | 兴化市新天地不锈钢制品有限公司 | Composition testing high-temperature furnace |
| CN203533578U (en) * | 2013-09-11 | 2014-04-09 | 林旭虹 | Boiler grate dust removal and purging device |
| CN204705651U (en) * | 2015-05-12 | 2015-10-14 | 深圳市周大福珠宝制造有限公司 | The sample introduction car of Fire Assaying assay equipment |
| CN205643269U (en) * | 2016-03-02 | 2016-10-12 | 祝培明 | Intelligent fiery ensaying cupellation furnace |
-
2016
- 2016-03-02 CN CN201610117155.2A patent/CN105651929B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US704198A (en) * | 1901-09-24 | 1902-07-08 | David Laird | Cupellation-furnace. |
| RU1540299C (en) * | 1987-12-11 | 1993-12-30 | Центральный научно-исследовательский геологоразведочный институт цветных и благородных металлов | Method and apparatus for cupellation of crude leads |
| CN2235106Y (en) * | 1995-06-09 | 1996-09-11 | 北京天翼科贸公司 | Electric-heating diaphragm gradient temperature-controlling uniform coated stove |
| CN1945273A (en) * | 2006-09-28 | 2007-04-11 | 江西铜业集团公司贵冶分公司 | Method for detecting high content gold by fire assaying |
| CN201581120U (en) * | 2009-11-25 | 2010-09-15 | 郴州市金贵银业股份有限公司 | Silver smelting furnace |
| CN201935562U (en) * | 2011-03-13 | 2011-08-17 | 杨龙安 | Oxygen filling, warming, strengthening, metal melting, fuming and volatilizing device of side-blown smelting furnace |
| CN103629928A (en) * | 2012-08-27 | 2014-03-12 | 兴化市新天地不锈钢制品有限公司 | Composition testing high-temperature furnace |
| CN202898496U (en) * | 2012-11-13 | 2013-04-24 | 永兴县庚仁银业有限责任公司 | Cupellation furnace |
| CN203533578U (en) * | 2013-09-11 | 2014-04-09 | 林旭虹 | Boiler grate dust removal and purging device |
| CN204705651U (en) * | 2015-05-12 | 2015-10-14 | 深圳市周大福珠宝制造有限公司 | The sample introduction car of Fire Assaying assay equipment |
| CN205643269U (en) * | 2016-03-02 | 2016-10-12 | 祝培明 | Intelligent fiery ensaying cupellation furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107490653A (en) * | 2017-03-10 | 2017-12-19 | 北矿检测技术有限公司 | A kind of cupel(lation) furnace |
| CN110186281A (en) * | 2019-06-25 | 2019-08-30 | 北矿检测技术有限公司 | A kind of controllable supplementary air type cupel(lation) furnace |
| CN110186281B (en) * | 2019-06-25 | 2024-03-15 | 北矿检测技术股份有限公司 | Controllable air supplementing type gray blowing furnace |
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| CN105651929B (en) | 2017-07-18 |
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