CN104561594A - Tin smelting liquation furnace - Google Patents

Tin smelting liquation furnace Download PDF

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Publication number
CN104561594A
CN104561594A CN201410739337.4A CN201410739337A CN104561594A CN 104561594 A CN104561594 A CN 104561594A CN 201410739337 A CN201410739337 A CN 201410739337A CN 104561594 A CN104561594 A CN 104561594A
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CN
China
Prior art keywords
furnace
tin
heater
closure
liquating
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
Application number
CN201410739337.4A
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Chinese (zh)
Inventor
梁世豪
黎乾荣
史文革
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.)
GUANGXI TAIXING ELECTRONIC WELDING MATERIAL CO Ltd
Original Assignee
GUANGXI TAIXING ELECTRONIC WELDING MATERIAL 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 GUANGXI TAIXING ELECTRONIC WELDING MATERIAL CO Ltd filed Critical GUANGXI TAIXING ELECTRONIC WELDING MATERIAL CO Ltd
Priority to CN201410739337.4A priority Critical patent/CN104561594A/en
Publication of CN104561594A publication Critical patent/CN104561594A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention relates to the field of mineral smelting equipment and discloses a tin smelting liquation furnace. The tin smelting liquation furnace comprises a furnace bottom, a furnace body and a furnace top, wherein the furnace body is surrounded by four furnace walls, the furnace bottom is a high-aluminum brick pavement layer, the furnace walls and the furnace top are constructed by refractory bricks, and a top feed opening is formed in the furnace top; a tin discharge opening is formed at the bottom of the tail end of the furnace body, a refractory brick layer is built on the surface of the furnace bottom, three surfaces of the refractory brick layer are high, one surface of the refractory brick layer is low, and the refractory brick layer inclines towards the direction of the tin discharge opening; a ventilating furnace door is arranged on the furnace wall, a fuel inlet is formed in the front end of the furnace body, a smoke outlet on the tail end of the furnace body is connected with an exhaust fan, and the exhaust fan pumps air from inside to outside to generate a negative pressure in the furnace body. By adopting the tin smelting liquation furnace provided by the invention, the problems of non-uniform temperature, feed difficulty and the like of the existing liquation equipment are solved, and the tin smelting liquation furnace has the characteristics of convenience in feeding, simple temperature control and the like.

Description

Tin smelts liquating furnace
Technical field
The present invention relates to mineral melting equipment, refer to a kind of liquating furnace especially.
Background technology
Tin is smelted and is comprised thick refining and refining process, and the thick tin of thick refining output is processed further as the raw material of refining, finally obtains the tin slab that purity is higher.Thick tin is divided into hardhead, first tin and second tin according to iron-holder difference by tin-smelting plant usually.Second tin is iron-holder is between 1%-10%, also containing impurity such as lead, copper, arsenic, antimony, bismuths in second tin, is a considerable procedure during tin is smelted by the removal of impurities of second tin.Usually adopt liquation process removal of impurities in industry, liquation process is that second tin is heated to more than tin fusing point, and between refractory metal, compound keeps solid state, and tin to be fused into liquid separated.At present, tin-smelting plant's liquating apparatus mainly adopts reverberatory furnace, and minority also uses electric furnace.
Retrieve domestic patent database and find there has been many open source literatures about liquating apparatus report:
Such as: [patent No.] CN94226050.3, [title] new-type plumbous smelting reverberatory furnace, [day for announcing] 1994.12.21, discloses new-type plumbous smelting reverberatory furnace, relates to plumbous smelting reverberatory furnace constitutional features.Technical problem to be solved carries out roasting, melting, refining continuously in this stove.It is characterized in that: charging opening and drain hole size greatly, are conducive in stove for air and poling; Flue valve adopts the Steel Concrete formula of refractory materials, energy life-time service, and the afterbody in burner hearth is built liquate pond, improves lead bullion grade, the lead tolerance of lead bullion can be made to reach 3# lead bullion level by liquate removal of impurities.
This patent utilization reverberatory furnace serves as liquating apparatus, but reverberatory furnace has the liquate process what time being unfavorable for second tin: 1, the working temperature of reverberatory furnace is generally more than 1000 DEG C, in liquate process, the other parts metal in second tin also can melt, and so just greatly have impact on impurity-eliminating effect; 2, because reverberatory furnace inner chamber is huge, be difficult to ensure homogeneous temperature, thus cause the generation of a large amount of scoria; 3, the opening for feed of reverberatory furnace is narrow, and charging is inconvenient, more can not throw in bulk second tin raw ingot; Certain reverberatory furnace liquate power consumption is also relatively more.
Such as: [patent No.] CN94228294, [title] alloy liquation furnace, [day for announcing] 2009.10.14, disclose a kind of alloy liquation furnace, comprise body of heater, dog-house, discharge chute mouth, combustion chamber and liquate room, it is characterized in that: in its body of heater, have short partition wall, make combustion chamber be located at the side of liquate room, the bottom surface of liquate room tilts to discharge chute mouth direction, and cost is 1/200 of reverberatory furnace.This utility model adopts solid coal as fuel, is difficult to promptly and accurately control in-furnace temperature; Secondly the existence of short partition wall have impact on the gas flow of furnace interior on the one hand, hinders homogeneous temperature, also occupies furnace space on the other hand, reduce liquate space.
Such as: [patent No.] CN201220638158.8, [title] a kind of long lifetime high-purity zinc powder liquating furnace, [day for announcing] 2013.06.05, disclose a kind of long lifetime high-purity zinc powder liquating furnace, by melting pool, dog-house, parapet, one-level liquate pond, secondary liquate pond, three grades of liquate ponds, inclined tube, fire-resisting partition forms, it is characterized in that: the inside of body of heater is provided with fire-resisting partition, be positioned at around melting pool and liquate pond, it is dog-house on the upside of melting pool, what connect with dog-house is melting pool, the side of melting pool is open-minded, be connected with one-level liquate pond, the other end in one-level liquate pond is connected with the one end in next stage liquate pond, in three grades of liquate ponds near termination blanking inclined tube of furnace wall, inclined tube inserts in evaporation tank.This can extend the liquate time of zinc powder, adds liquate number of times, improves the purity of zinc powder.But space structure is too complicated in body of heater, have impact on the gas flow of furnace interior, be difficult to ensure homogeneous temperature, be also unfavorable for the thick tin slab charging of bulk second simultaneously.
In sum, there is the problems such as the uneven and difficult feed of liquate process temperature in current liquating apparatus, is necessary that work further improves.
Summary of the invention
The object of the invention is to solve the problems such as non-uniform temperature that existing liquating apparatus exists and difficult feed, provide a kind of tin of charging and temperature control that facilitates and smelt liquating furnace.
Tin of the present invention smelts liquating furnace, and comprise furnace bottom, body of heater and furnace roof, body of heater is surrounded by four sides furnace wall, and furnace bottom is for use high alumina brick pavement, and furnace wall and furnace roof adopt refractory brick structure, and furnace roof is provided with its top feed mouth; Putting Xi Kou is arranged on bottom body of heater tail end, and fire brick layer has been built on furnace bottom surface by laying bricks or stones, fire brick layer three high one sides low and to put Xi Kou direction tilt; Furnace wall is provided with ventilative fire door, body of heater front end is provided with fuel gas inlet, and the smoke outlet of body of heater tail end is connected with vacuum fan, and vacuum fan, by interior exhausting outward, causes negative pressure in body of heater; Hearth area is 5 ㎡-10 ㎡;
Illustrate as a further improvement on the present invention, described its top feed mouth is provided with the fire safe type top closure matched, and top closure is flexibly connected with furnace roof.
Illustrate as a further improvement on the present invention, described top closure one end and furnace roof opening edge are along being hinged, the other end, as the free end of top closure, is connected with electric motor by wireline, and electric motor controls opening or closing of top closure by pulling wireline.
Illustrate as a further improvement on the present invention, described top closure is outer cover of steel plate, and inside is built refractory concrete and is evenly distributed with steel reinforcing bar.
Illustrate as a further improvement on the present invention, described fuel gas inlet is other is provided with burnt gas valve, by burnt gas valve adjustable fuel gas transmission speed and gas flow, thus controls the temperature in body of heater.
Illustrate as a further improvement on the present invention, described Xi Kou of putting is provided with thrust-augmenting nozzle, liquid tin drainage is entered in specified containers by drainage tube.
Illustrate as a further improvement on the present invention, described top closure area is 1/2-3/4 of furnace roof area.
The present invention compared with prior art has following progress:
1, use combustion gas as liquate thermal source, staff can easily control temperature in body of heater by adjustment burnt gas valve.
2, liquating furnace tail end is provided with negative pressure vacuum fan, furnace wall is provided with ventilative operation fire door, and in liquate process, be negative pressure in body of heater, air enters in body of heater from fire door continually, ensures combustion gas Thorough combustion.
3, hearth area is 5 ㎡-10 ㎡, and furnace space is much smaller compared with reverberatory furnace, and furnace interior structure is smooth, and air-flow is unobstructed, is more conducive to heat trnasfer, makes homogeneous temperature in body of heater, reduces the generation of dissolved slag.
4, body of heater adopts its top feed structure, and opening for feed size is the several times of common liquate device opening for feed, and top closure motor drive, can directly put and process the thick tin slab of bulk second into, saves broken trouble.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is the structural representation that tin of the present invention smelts liquating furnace.
In figure, 1-furnace bottom; 2-fire brick layer; 3-furnace wall; 4-fuel gas inlet; 5-burnt gas valve; 6-furnace roof; 7-electric motor; 8-top closure; 9-its top feed mouth; 10-smoke outlet; 11-put Xi Kou.
Embodiment
As shown in Figure 1, tin of the present invention smelts liquating furnace, and comprise furnace bottom 1, body of heater and furnace roof 6, body of heater is surrounded by four sides furnace wall 3, and furnace bottom adopts high alumina brick to pave, and furnace wall and furnace roof adopt refractory brick structure, and furnace roof is provided with its top feed mouth 9; Putting tin mouth 11 is arranged on bottom body of heater tail end, and fire brick layer 2 has been built on furnace bottom surface by laying bricks or stones, bed course three high one sides low and to put Xi Kou direction tilt; Furnace wall 3 is provided with ventilative operation fire door, body of heater front end is provided with fuel gas inlet 4, and the smoke outlet 10 of body of heater tail end is connected with vacuum fan, and vacuum fan, by interior exhausting outward, causes negative pressure in body of heater; Hearth area is 5 ㎡-10 ㎡; Described its top feed mouth 9 is provided with the fire safe type top closure 8 matched, and top closure is flexibly connected with furnace roof.
Described top closure 8 one end and furnace roof 6 opening edge are along being hinged, and the other end, as the free end of top closure, is connected with electric motor 7 by steel cable, and electric motor controls opening or closing of top closure by pulling steel cable; Described top closure 8 is outer cover of steel plate, and inside is built refractory concrete and is evenly distributed with steel reinforcing bar; The area of described top closure 8 is 1/2-3/4 of furnace roof area.
Put tin mouth 11 and thrust-augmenting nozzle is installed, by thrust-augmenting nozzle, liquid tin is guided in specified containers, to complete ingot processed operation.
In blowing process, staff only needs to open electric motor 7 and rotates forward switch, electric motor drives steel cable shrink and top closure 8 is opened, then thick for second tin slab is dropped into (larger tin slab can be thrown in by loop wheel machine) from its top feed mouth, place complete, drivingmotor reverses, and top closure 8 slowly closes under gravity, completes blowing process.
In liquate process, the air pressure in body of heater is greater than external pressure, and air enters in body of heater the oxygen supply ensured in stove from ventilative operation fire door.Combustion gas enters furnace interior from fuel gas inlet 4, and fuel gas buring produces amount of heat makes furnace temperature raise, and staff easily can control in-furnace temperature by adjustment burnt gas valve.
After the thick tin of second has entered, furnace body temperature is progressively warming up to 300 DEG C, then make furnace temperature remain on 300 DEG C-350 DEG C, the thick tin of second slowly dissolves always, and tin liquor body flows to along bed course 2 and puts tin mouth 11, adopts special container to collect after tin liquor body flows out.After liquate is complete, the scoria of furnace bottom of raking off.After cleaning out, closing gas valve door 5 and vacuum fan.

Claims (6)

1. tin smelts a liquating furnace, and comprise furnace bottom (1), body of heater and furnace roof (6), body of heater is surrounded by four sides furnace wall (3), and furnace bottom is for use high alumina brick pavement, and furnace wall and furnace roof adopt refractory brick structure, and furnace roof is provided with its top feed mouth (9); Putting Xi Kou (11) is arranged on bottom body of heater tail end, and fire brick layer (2) has been built on furnace bottom surface by laying bricks or stones, fire brick layer three high one sides low and to put Xi Kou direction tilt; It is characterized in that: (3) are provided with ventilative fire door to furnace wall, body of heater front end is provided with fuel gas inlet (4), and the smoke outlet (10) of body of heater tail end is connected with vacuum fan, and vacuum fan, by interior exhausting outward, causes negative pressure in body of heater; Hearth area is 5 ㎡-10 ㎡;
Tin according to claim 1 smelts liquating furnace, it is characterized in that: described its top feed mouth (9) is provided with the fire safe type top closure (8) matched, and top closure is flexibly connected with furnace roof.
2. tin according to claim 1 smelts liquating furnace, it is characterized in that: top closure (8) one end and furnace roof (6) opening edge are along being hinged, the other end is as the free end of top closure, be connected with electric motor (7) by wireline, electric motor controls opening or closing of top closure by pulling wireline.
3. smelt liquating furnace according to the arbitrary described tin of claim 1 or 2: top closure (8) is outer cover of steel plate, and inside is built refractory concrete and is evenly distributed with steel reinforcing bar.
4. tin according to claim 1 smelts liquating furnace, it is characterized in that: fuel gas inlet (4) is other is provided with burnt gas valve (5), by burnt gas valve adjustable fuel gas transmission speed and gas flow, thus controls the temperature in body of heater.
5. tin according to claim 1 smelts liquating furnace, it is characterized in that: put Xi Kou (11) and be provided with thrust-augmenting nozzle, liquid tin drainage entered in specified containers by drainage tube.
6. the tin according to claim arbitrary in claim 1-3 smelts liquating furnace, it is characterized in that: described top closure (8) area is 1/2-3/4 of furnace roof area.
CN201410739337.4A 2014-12-08 2014-12-08 Tin smelting liquation furnace Pending CN104561594A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410739337.4A CN104561594A (en) 2014-12-08 2014-12-08 Tin smelting liquation furnace

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Application Number Priority Date Filing Date Title
CN201410739337.4A CN104561594A (en) 2014-12-08 2014-12-08 Tin smelting liquation furnace

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CN104561594A true CN104561594A (en) 2015-04-29

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106756064A (en) * 2016-12-14 2017-05-31 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy equipment
CN106929690A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of environmental protection and energy saving tin metallurgy equipment and its application process
CN106929689A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy method
CN106929691A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of environmental protection and energy saving tin metallurgy equipment with non-uniform Distribution resistance wire crystallizer and its application process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202329107U (en) * 2011-12-08 2012-07-11 成都先进功率半导体股份有限公司 Tin melting furnace
CN204474737U (en) * 2014-12-08 2015-07-15 广西泰星电子焊接材料有限公司 Tin smelts liquating furnace

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202329107U (en) * 2011-12-08 2012-07-11 成都先进功率半导体股份有限公司 Tin melting furnace
CN204474737U (en) * 2014-12-08 2015-07-15 广西泰星电子焊接材料有限公司 Tin smelts liquating furnace

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106756064A (en) * 2016-12-14 2017-05-31 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy equipment
CN106929690A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of environmental protection and energy saving tin metallurgy equipment and its application process
CN106929689A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy method
CN106929691A (en) * 2016-12-14 2017-07-07 衡阳旺发锡业有限公司 A kind of environmental protection and energy saving tin metallurgy equipment with non-uniform Distribution resistance wire crystallizer and its application process
CN106756064B (en) * 2016-12-14 2018-06-29 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy equipment
CN106929689B (en) * 2016-12-14 2018-07-24 衡阳旺发锡业有限公司 A kind of energy-efficient tin metallurgy method

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