CN109579523A - A kind of modified natural gas heat accumulated type lead-melting furnace - Google Patents
A kind of modified natural gas heat accumulated type lead-melting furnace Download PDFInfo
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- CN109579523A CN109579523A CN201811439936.9A CN201811439936A CN109579523A CN 109579523 A CN109579523 A CN 109579523A CN 201811439936 A CN201811439936 A CN 201811439936A CN 109579523 A CN109579523 A CN 109579523A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/0806—Charging or discharging devices
- F27B2014/0818—Discharging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B14/00—Crucible or pot furnaces
- F27B14/08—Details peculiar to crucible or pot furnaces
- F27B14/14—Arrangements of heating devices
- F27B2014/146—Recuperation of lost heat, e.g. regenerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/007—Systems for reclaiming waste heat including regenerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/01—Charges containing mainly non-ferrous metals
- F27M2001/017—Lead
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/13—Smelting
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Abstract
The present invention provides a kind of modified natural gas heat accumulated type lead-melting furnaces, belong to apparatus for melting metal field, including furnace body, the first heat-storage type burner, the second heat-storage type burner, four-way reversing valve, air blower and air-introduced machine, furnace body periphery is equipped with heating chamber, is equipped with helical baffle in heating chamber.First heat-storage type burner and the second heat-storage type burner include regenerative chamber and burner, and regenerative chamber is filled with heat storage, is respectively and fixedly provided with ignition in each burner, two regenerative chambers, air blower, air-introduced machines are connected to four-way reversing valve.Slag-drip opening connects collecting box by conveying device, and pulverizer is fixed with below collecting box, and vibrating screen is installed below pulverizer, and vibrating screen is arranged right below fine slag case, and thick slag case is fixed with below vibrating screen lower end, is equipped with floation tank below fine slag case.The lead melting furnace can solve the generally existing high fume temperature of current lead melting furnace, the problem that furnace temperature is uneven, the thermal efficiency is lower.
Description
Technical field
The present invention relates to apparatus for melting metal fields, more particularly, to a kind of modified natural gas heat accumulated type lead-melting furnace.
Background technique
During metal smelt, the waste residue containing metals such as more copper, zinc, lead can be generated, these contain heavy metal
Waste residue direct emission not only will cause the waste of resource, and very big pollution can be caused to environment.According to National Environmental Protection Agency
Regulation, lead tolerance is lower than the buried ground end of 2% lead skim ability, it is therefore desirable to handle the waste residue generated is smelted, reduce it
In lead tolerance.Lead melting furnace is used when handling waste residue, lead melting furnace is mainly used for low melting point (≤500 DEG C), and metal is such as
The fusing of lead, zinc, tin and its alloy, however existing lead melting furnace, in use process not in the prevalence of high fume temperature, furnace temperature
Uniformly, the lower problem of the thermal efficiency.
Summary of the invention
In order to overcome the drawbacks of the prior art, technical problem to be solved by the present invention lies in propose that a kind of modified is natural
Gas heat accumulated type lead-melting furnace, to solve, the generally existing high fume temperature of current lead melting furnace, furnace temperature are uneven, the thermal efficiency is lower is asked
Topic.
For this purpose, the following technical solution is employed by the present invention:
The present invention provides a kind of modified natural gas heat accumulated type lead-melting furnaces, including furnace body, the first heat-storage type burner,
Two heat-storage type burners, four-way reversing valve, air blower and air-introduced machine, the furnace body periphery are equipped with heating chamber, and the furnace body is received
It is dissolved in the heating chamber, and the heating chamber periphery and the furnace body outer wall sealing welding, is equipped with spiral in the heating chamber
Partition, the helical baffle are fixed on the furnace body outer wall and the heating cavity wall in the shape of a spiral along the furnace body periphery,
The gradient of the helical baffle is 15 ° -20 °, bell is fixed at the top of the furnace body, the bell is equipped with feed inlet, described
Bottom of furnace body is connected with drain pipe, and side wall upper part is provided with slag-drip opening, and air pressure inductor, the furnace body side are fixed in the heating chamber
Temperature inductor is fixed on wall, the heating chamber side wall is connected with exhaust pipe；
First heat-storage type burner and second heat-storage type burner are separately fixed at the furnace body two sides, and close
It being symmetrical arranged in the furnace body central axes, first heat-storage type burner is identical with the second heat-storage type burner structure,
It include regenerative chamber and burner, the regenerative chamber is filled with heat storage, and the burner is fixed on the regenerative chamber side wall upper part, institute
It states burner one end to be connected to the regenerative chamber, the other end is connected to the heating chamber, is respectively and fixedly provided with electronics in each burner
Igniter；The bottom of two regenerative chambers is provided with interface, the interface of two regenerative chambers pass through respectively pipeline with it is described
The first opening, the second open communication of four-way reversing valve, the air outlet of the air blower pass through pipeline and the four-way reversing valve
Third open communication, the air inlet of the air-introduced machine passes through the 4th open communication of pipeline and the four-way reversing valve；It is described
It is connected with the first branch pipe on the burner of first heat-storage type burner, is connected on the burner of second heat-storage type burner
Second branch pipe, first branch pipe are connected to air inlet pipe with the branch pipe, the external gas source of air inlet pipe, the air inlet
It is connected with control valve on pipe, is connected with switching valve on first branch pipe and second branch pipe；
The external conveying device of slag-drip opening, described conveying device one end are connected to the slag-drip opening, and the other end is connected with receipts
Header, the conveying device include driving motor, shell, first rotating shaft and the first helical feed leaf, and the shell passes through described
Slag-drip opening is connected to the furnace interior, and the shell is higher than far from the height of described furnace body one end close to described furnace body one end
Height, the first rotating shaft is arranged along the central axes of the shell to be driven in the shell, and by the driving motor, institute
It states the first helical feed leaf to be fixed on the first rotating shaft outer wall along the axis direction of the first rotating shaft, the shell and institute
Furnace interior connection is stated, the first rotating shaft extends into the furnace interior through the slag-drip opening, and it is intracorporal to be located at the furnace
One section of first rotating shaft is equipped with multiple second helical feed leaves, and end is fixed with first bevel gear, and multiple described second
Helical feed leaf is fixed on the first rotating shaft outer wall, the second helical feed leaf along the axis direction of the first rotating shaft
It is outward extended with baffle far from the first rotating shaft side, the baffle is vertical with the second helical feed leaf surface, described
It is provided with through-hole on baffle, second bevel gear is equipped in the furnace body, the second bevel gear is mounted on described by the second shaft
On bell, second shaft and the bell are rotatablely connected, the second bevel gear be mounted on second shaft bottom and
It is fixedly connected with second shaft, the second bevel gear is meshed with the first bevel gear, solid in second shaft
Surely there is scraper plate, the scraper plate extends radially outwardly along second shaft, and the inclination is arranged and is located at second cone
The lower section side of gear, and the scraper plate is higher than far from the height of second shaft one end positioned at second shaft one end
Highly, infrared distance sensor is installed, the probe of the infrared distance sensor ought be set down towards whole on the bell bottom wall
It sets；
The collecting box bottom opening, the opening underface are fixed with pulverizer, the outlet lower section of the pulverizer
Vibrating screen is installed, the vibrating screen includes vibrator and sieve plate, and the sieve plate is obliquely installed, and the vibrator is fixed on the sieve
Board bottom portion, the sieve plate are arranged right below fine slag case, are fixed with thick slag case, the fine slag bottom immediately below the sieve plate lower end
Portion is provided with discharge gate, and the discharge gate is arranged right below floation tank.
In preferably technical solution of the invention, in the first rotating shaft between the two neighboring second helical feed leaf
Distance close to second shaft one end to far from second shaft one end from being incremented by, and the spiral shell of the second helical feed leaf
Rotation radius close to second shaft one end to far from second shaft one end from being gradually increased.
In preferably technical solution of the invention, material storing box is fixed on the bell, the material storing box bottom is equipped with opening.
In preferably technical solution of the invention, screw mixer, the screw mixer are equipped with below the material storing box
It is fixed on the bell, the screw mixer is located at the underface of the material storing box bottom opening, the screw mixer
Outlet be connected to the feed inlet.
It further include automatic feeding in preferably technical solution of the invention, the discharge port of the automatic feeding
Above the material storing box, the automatic feeding is screw conveyor or conveyer belt.
In preferably technical solution of the invention, described exhaust pipe one end is connected with heat exchanger, and the heat exchanger is board-like changes
Hot device or fin-tube type heat exchanger.
In preferably technical solution of the invention, the heat storage is honeycomb-shaped oxidizing aluminium.
In preferably technical solution of the invention, the air blower and the air-introduced machine are bolted on ground.
In preferably technical solution of the invention, ultraviolet flame detector and flame are respectively and fixedly provided in each burner
Relay.
In preferably technical solution of the invention, the heating chamber periphery is equipped with thermal insulation layer.
The invention has the benefit that
A kind of modified natural gas heat accumulated type lead-melting furnace provided by the invention, the lead melting furnace pass through scraper plate in furnace and defeated
Device is sent, the metal impurities in metal melting process can be quickly and effectively excluded, reduce the impurity content of molten metal；And furnace
External side is equipped with heating chamber, is fixed with helical baffle in heating chamber, furnace body is externally provided with the first heat-storage type burner and the second accumulation of heat
Formula burner, two heat-storage type burners furnace body can be burnt after high-temp waste gas be sucked out and the heated natural gas in regenerative chamber,
Reducing temperature after using energy source, the raising thermal efficiency, while high-temp waste gas and natural gas are exchanged heat reduces, will not be to ring after discharge
Border damages；Combustion gas is burnt in burner, and the high-temperature flue gas after burning, which enters back into heating chamber, heats furnace body, spiral shell
Rotation partition can extend residence time of the high-temperature flue gas in heating chamber, due to, without thermal-flame, can avoid furnace body office in furnace body
Portion's high temperature keeps furnace temperature more uniform.
Detailed description of the invention
Fig. 1 is a kind of structural representation for modified natural gas heat accumulated type lead-melting furnace that the specific embodiment of the invention provides
Figure；
Fig. 2 is the partial enlarged view of the part a-a in Fig. 1；
Fig. 3 is the structural schematic diagram for the second helical feed leaf and baffle that specific embodiment provides.
In figure:
1, furnace body；2, the first heat-storage type burner；3, the second heat-storage type burner；4, air-introduced machine；5, air blower；6, it exchanges heat
Device；7, collecting box；8, pulverizer；9, vibrating screen；10, fine slag case；11, thick slag case；12, floation tank；13, screw mixer；14,
Material storing box；15, bell；16, thermal insulation layer；17, heating chamber；18, automatic feeding；19, four-way reversing valve；20, conveying device；
21, regenerative chamber；22, burner；23, first bevel gear；24, the second shaft；25, second bevel gear；26, scraper plate；91, vibrator；
92, sieve plate；111, temperature inductor；112, drain pipe；113, air inlet pipe；114, the second branch pipe；115, the first branch pipe；116, turn
Change valve；117, control valve；118, infrared distance sensor；151, lifting lug；171, helical baffle；172, air pressure inductor；173,
Exhaust pipe；201, driving motor；202, first rotating shaft；203, shell；204, the first helical feed leaf；205, the second helical feed
Leaf；206, baffle；211, heat storage；221, ultraviolet flame checking unit；222, flame relay；223, ignition；2061,
Through-hole.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1 to Figure 3, the invention discloses a kind of modified natural gas heat accumulated type lead-melting furnaces, including furnace body 1,
One heat-storage type burner 2, the second heat-storage type burner 3, four-way reversing valve 19, air blower 5 and air-introduced machine 4, outside the furnace body 1
It encloses and is equipped with heating chamber 17, the furnace body 1 is contained in the heating chamber 17, and outside 17 periphery of the heating chamber and the furnace body 1
Wall sealing welding, is equipped with helical baffle 171 in the heating chamber 17, the helical baffle 171 along 1 periphery of furnace body helically
Shape is fixed on 1 outer wall of furnace body and 17 inner wall of heating chamber, and the gradient of the helical baffle 171 is 15 ° -20 °, described
Helical baffle 171 is arranged at described one section of 1 side wall of furnace body；Bell 15 is fixed at the top of the furnace body 1, it is preferable that the bell
15 are fixed to each other using buckle and the furnace body 1, and the bell 15 is equipped with feed inlet, and 1 bottom of furnace body is connected with drain pipe
112, side wall upper part is provided with slag-drip opening, and air pressure inductor 172 is fixed in the heating chamber 17, is fixed on 1 side wall of furnace body
There is temperature inductor 111,17 side wall of heating chamber is connected with exhaust pipe 173, and the temperature inductor uses pt100 temperature sense
Device；
First heat-storage type burner 2 and second heat-storage type burner 3 are separately fixed at 1 two sides of furnace body,
And it is symmetrical arranged about 1 central axes of furnace body, first heat-storage type burner 2 and 3 knot of the second heat-storage type burner
Structure is identical, includes regenerative chamber 21 and burner 22, and the regenerative chamber 21 is filled with heat storage 211, and the burner 22 is fixed on institute
21 side wall upper part of regenerative chamber is stated, described 22 one end of burner is connected to the regenerative chamber 21, and the other end is connected to the heating chamber 17,
It is respectively and fixedly provided with ignition 223 in each burner 22, which uses high-voltage pulse electronics high-energy ignition
Device, day GDZ-VI in model；The bottom of two regenerative chambers 21 is provided with interface, the interface point of two regenerative chambers 21
Not by the first opening, the second open communication of pipeline and the four-way reversing valve 19, the air outlet of the air blower 5 passes through pipe
The air inlet of the third open communication in road and the four-way reversing valve 19, the air-introduced machine 4 is commutated by pipeline and the four-way
4th open communication of valve 19；It is connected with the first branch pipe 115 on the burner 22 of first heat-storage type burner 2, described
Be connected with the second branch pipe 114 on the burner 22 of two heat-storage type burners 3, first branch pipe 115 and the branch pipe with into
Tracheae 113 is connected to, the external gas source of the air inlet pipe 113, is connected with control valve 117 in the air inlet pipe 113, and described first
Switching valve 116 is connected on pipe 115 and second branch pipe 114, the switching valve 116 is executed using the driving of import list is pneumatic
Device, driving medium are compressed air；
The external conveying device 20 of slag-drip opening, described 20 one end of conveying device are connected to the slag-drip opening, and the other end connects
There is a collecting box 7, the conveying device includes driving motor 201, shell 203, first rotating shaft 202 and the first helical feed leaf 204,
The shell 203 inside the slag-drip opening and the furnace body 1 by being connected to, and the shell 203 is far from described 1 one end of furnace body
Height is higher than the height close to described 1 one end of furnace body, and the first rotating shaft 202 is arranged along the central axes of the shell 203 in institute
It states in shell 203, and is driven by the driving motor 201, the first helical feed leaf 204 is along the first rotating shaft 202
Axis direction is fixed on 202 outer wall of first rotating shaft, is connected to inside the shell 203 and the furnace body 1, described first turn
Axis 202 extends into inside the furnace body 1 through the slag-drip opening, in one section of first rotating shaft 202 in the furnace body 1
Equipped with multiple second helical feed leaves 205, end is fixed with first bevel gear 23, multiple second helical feed leaves 205
Axis direction along the first rotating shaft 202 is fixed on 202 outer wall of first rotating shaft, further, the first rotating shaft
Distance on 202 between the two neighboring second helical feed leaf 205 is from close described second shaft, 24 one end to far from described
Second shaft, 24 one end is incremented by, and the radius of spin of the second helical feed leaf 205 is by close to described second shaft, 24 one end
It is gradually increased to far from described second shaft, 24 one end.The second helical feed leaf 205 is far from 202 side of first rotating shaft
It is outward extended with baffle 206, the baffle 206 is vertical with the second helical feed 205 surfaces of leaf, opens on the baffle 206
There is through-hole 2061, second bevel gear 25 is equipped in the furnace body 1, the second bevel gear 25 is mounted on institute by the second shaft 24
It states on bell, second shaft 24 is rotatablely connected with the bell, and the second bevel gear 25 is mounted on second shaft
It 24 bottoms and is fixedly connected with second shaft 24, the second bevel gear 25 is meshed with the first bevel gear 23, institute
It states and is fixed with scraper plate 26 in the second shaft 24, the scraper plate 26 extends radially outwardly along second shaft 24, the scraper plate 26
It is obliquely installed and is located at the lower section side of the second bevel gear 25, and the scraper plate 26 is far from described second shaft, 24 one end
Height is higher than the height positioned at described second shaft, 24 one end, is equipped with infrared distance sensor 118 on 1 bottom wall of bell,
The probe of the infrared distance sensor 118 is towards whole down when setting；The conveying device 20 slag-drip opening is discharged useless
Slag is transported in the collecting box 7, when the driving motor 201 drives the first rotating shaft 202, the first rotating shaft 202
Second shaft 24 is driven to rotate by two intermeshing first bevel gears 23 and the second bevel gear 24, institute
Stating the second shaft 24 drives the scraper plate 26 to rotate, and the scraper plate 26 puts the dross of liquid level to 1 inside center of furnace body together
Place, then dross is sent into the shell 203 by the second helical feed leaf 205, is finally sent into the collecting box 7, and
The infrared distance sensor 118 is used to control the height of liquid level in the furnace body 1, and liquid level is made to be maintained at first cone
The junction of gear 23 and the second bevel gear 25, in order to dross discharge.7 bottom opening of collecting box, the opening
Underface is fixed with pulverizer 8, it is preferable that the pulverizer 8 is double helix pulverizer 8, the outlet lower section of the pulverizer 8
Vibrating screen 9 is installed, the vibrating screen 9 includes vibrator 91 and sieve plate 92, and the sieve plate 92 is obliquely installed, and the vibrator 91 is solid
It is scheduled on 92 bottom of sieve plate, the vibrator 91 shakes the sieve plate 92, strengthens the screening effect of the sieve plate 92, institute
It states sieve plate 92 and is arranged right below fine slag case 10, the fine slag case 10 is for accepting the little particle fallen down from 92 mesh of sieve plate
Waste residue, is fixed with thick slag case 11 immediately below 92 lower end of sieve plate, the thick slag case 11 for accept from the sieve plate 92 compared with
The bulky grain waste residue that low side is fallen down, 10 bottom of fine slag case are provided with discharge gate, and the discharge gate is arranged right below floation tank 12,
The waste residue that the floation tank 12 can make lead tolerance small swims in liquid surface, and the waste residue greater than 2% of lead tolerance greatly then deposits
In bottom.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
A kind of above-mentioned modified natural gas heat accumulated type lead-melting furnace, be equipped on the outside of the furnace body 1 of the lead melting furnace it is described plus
Hot chamber 17 is fixed with the helical baffle 171 in the heating chamber 17, and the furnace body 1 is externally provided with first heat storage type combustion
Device 2 and second heat-storage type burner 3, the high-temp waste gas after two heat-storage type burners can burn the furnace body 1 are sucked out
And the heated natural gas in the regenerative chamber 21, using energy source is reduced, improves the thermal efficiency, while high-temp waste gas and natural gas carry out
Temperature reduces after heat exchange, will not damage to environment after discharge；Combustion gas is burnt in the burner 22, the high temperature after burning
Flue gas is entered back into the heating chamber 17 and is heated to the furnace body 1, and the helical baffle 171 can extend high-temperature flue gas in institute
The residence time in heating chamber 17 is stated, due to, without thermal-flame, can avoid 1 localized hyperthermia of furnace body in the furnace body 1, making furnace temperature
It is more uniform.
More specifically, containing metals such as lead, copper, zinc in the waste residue that smeltery generates, since the fusing point of three is different,
The fusing point of middle lead is 328 DEG C, the fusing point of copper is 1085 DEG C, the fusing point of zinc is 419.5 DEG C, using lead melting furnace to waste residue at
During reason, the temperature of lead melting furnace is controlled within 400 DEG C, and metallic lead is in molten condition in fusion process, and other metals
Impurity then swims in molten surface, is discharged from the slag-drip opening.During heating, natural gas is from the air inlet pipe 113 through institute
It states the first branch pipe 115 to enter in the burner 22 of first heat-storage type burner 2, the air blower 5 will be extraneous cold at this time
Air is roused into the burner 22 of first heat-storage type burner 2, is mixed with air and is lighted by the ignition 223
It burns, the high-temperature flue gas after burning enters 17 bottom of heating chamber, heats to the furnace body 1, the heating chamber
The heating chamber 17 is separated into multiple spaces by the helical baffle 171 in 17, when high-temperature flue gas can be long in the heating chamber 17
Between stop, sufficiently to be heated to the furnace body 1.Then 19 switching direction of four-way reversing valve, by the air-introduced machine 4 and described
The connection of second heat-storage type burner 3, the air-introduced machine 4 cause the high temperature in the heating chamber 17 to suck second heat accumulating type
Burner 3, for high-temperature flue gas when by the regenerative chamber 21, heat storage is in the regenerative chamber 21.Then in air inlet pipe 113
Natural gas enter second heat-storage type burner 3, the regenerative chamber 21 of the natural gas in second heat-storage type burner 3
In obtain heat, temperature increases up to 800-1000 DEG C, and the four-way reversing valve 19 is reading switching direction, the air blast at this time
Machine 5 burns outside air drum into being mixed in second heat-storage type burner 3 with natural gas, the high-temperature flue gas after burning
Into 17 bottom of heating chamber, the furnace body 1 is heated.First heat-storage type burner 2 and second heat accumulating type
Burner 3 constantly changes natural gas and air carries out thermal afterburning burning, and energy consumption can be effectively reduced, and improves the thermal efficiency, high
Warm flue gas carries out heat with natural gas and outside air in the regenerative chamber 21 and exchanges, and temperature reduces, will not be to sky after discharge
Gas pollutes.19 heatproof of four-way reversing valve is 300 DEG C, and it is primary that 1-2min is divided between switching time.
Further, material storing box 14 is fixed on the bell 15,14 bottom of material storing box is equipped with opening；The material storing box
14 waste residue are added in the furnace body 1 for storing metal waste residue, and by being open, and improve work efficiency.
Further, screw mixer 13 is equipped with below the material storing box 14, the screw mixer 13 is fixed on described
On bell 15, the bolt blender is located at the underface of 14 bottom opening of material storing box, and the screw mixer 13 goes out
Mouth is connected to the feed inlet；The screw mixer 13 is stirred metal waste residue, and waste residue is crushed, makes waste residue described
The Smelting Effect of furnace body 1 is more preferable.
It further, further include automatic feeding 18, the discharge port of the automatic feeding 18 is located at the storing
14 top of case, the automatic feeding 18 are screw conveyor or conveyer belt；The automatic feeding 18 can give up metal
Slag is sent in the material storing box 14, is improved work efficiency.
Further, described 173 one end of exhaust pipe is connected with heat exchanger 6, and the heat exchanger 6 is plate heat exchanger 6 or pipe wing
Formula heat exchanger 6；When air pressure in the heating chamber 17 is excessively high, the exhaust pipe 173 gives up the high temperature in the heating chamber 17
Gas is expelled directly out, and to guarantee the safety of the heating chamber 17, the heat exchanger 6 is exchanged heat using aqueous vapor, the high-temperature flue gas of discharge
Cold water is heated, production, domestic water are provided, improves energy utilization rate.
Further, the heat storage 211 is honeycomb-shaped oxidizing aluminium.It replaces passing using honeycomb-shaped oxidizing aluminium heat storage 211
System heat-storing sphere is heat transferring medium, increases heat exchange specific surface area, on the one hand reduces 21 volume of regenerative chamber, on the other hand can make accumulation of heat
211 basis of body is consistent with furnace body 1, meanwhile, air, flue gas are reduced by the resistance ratios heat-storing sphere resistance of honeycomb heat storage 211,
Air blower 5 and 4 wind pressure of air-introduced machine also can be reduced accordingly.
Further, the air blower 5 and the air-introduced machine 4 are bolted on ground；By 5 He of air blower
The air-introduced machine 4 fixes on the ground to guarantee to be safely operated.
Further, ultraviolet flame detector 221 and flame relay 222 are respectively and fixedly provided in each burner 22；
The ultraviolet flame checking unit 221 and the flame relay 222 for the monitoring to flame, when occur loss of ignition or therefore
Barrier issues control instruction when flame-out, cuts off the supply of coal gas.
Further, 17 periphery of heating chamber is equipped with thermal insulation layer 16；The thermal insulation layer 16 is by the heating chamber 17 and outside
Boundary's isolation, plays heat preservation and safeguard work personnel safety.
The present invention is described with reference to the preferred embodiments, and those skilled in the art know, of the invention not departing from
In the case where spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.The present invention is not by this
The limitation of specific embodiment disclosed in place, other embodiments fallen into claims hereof belong to protection of the present invention
Range.
Claims (10)
1. a kind of modified natural gas heat accumulated type lead-melting furnace, it is characterised in that:
Including furnace body (1), the first heat-storage type burner (2), the second heat-storage type burner (3), four-way reversing valve (19), air blower
(5) and air-introduced machine (4), furnace body (1) periphery are equipped with heating chamber (17), and the furnace body (1) is contained in the heating chamber
(17) in, and the heating chamber (17) periphery and the furnace body (1) outer wall sealing welding, the heating chamber (17) is interior to be equipped with spiral
Partition (171), the helical baffle (171) are fixed on the furnace body (1) outer wall and institute along the furnace body (1) periphery in the shape of a spiral
It states on heating chamber (17) inner wall, the gradient of the helical baffle (171) is 15 ° -20 °, is fixed with bell at the top of the furnace body (1)
(15), the bell (15) is equipped with feed inlet, and furnace body (1) bottom is connected with drain pipe (112), and side wall upper part is provided with deslagging
Mouthful, it is fixed with air pressure inductor (172) in the heating chamber (17), is fixed with temperature inductor on furnace body (1) side wall
(111), heating chamber (17) side wall is connected with exhaust pipe (173)；
First heat-storage type burner (2) and second heat-storage type burner (3) are separately fixed at the furnace body (1) two
Side, and be symmetrical arranged about the furnace body (1) central axes, first heat-storage type burner (2) and second heat accumulating type combustion
Burner (3) structure is identical, includes regenerative chamber (21) and burner (22), and the regenerative chamber (21) is filled with heat storage (211), institute
It states burner (22) and is fixed on the regenerative chamber (21) side wall upper part, described burner (22) one end is connected to the regenerative chamber (21),
The other end is connected to the heating chamber (17), is respectively and fixedly provided with ignition (223) in each burner (22)；Described in two
The bottom of regenerative chamber (21) is provided with interface, and the interface of two regenerative chambers (21) passes through pipeline respectively and the four-way commutates
The first opening, the second open communication of valve (19), the air outlet of the air blower (5) pass through pipeline and the four-way reversing valve
(19) air inlet of third open communication, the air-introduced machine (4) is opened by pipeline with the 4th of the four-way reversing valve (19)
Mouth connection；It is connected with the first branch pipe (115) on the burner (22) of first heat-storage type burner (2), second accumulation of heat
Be connected with the second branch pipe (114) on the burner (22) of formula burner (3), first branch pipe (115) and the branch pipe with
Air inlet pipe (113) is connected to, the external gas source of the air inlet pipe (113), is connected with control valve (117) on the air inlet pipe (113),
Switching valve (116) are connected on first branch pipe (115) and second branch pipe (114)；
The external conveying device of slag-drip opening (20), described conveying device (20) one end are connected to the slag-drip opening, and the other end connects
Have collecting box (7), the conveying device includes driving motor (201), shell (203), first rotating shaft (202) and the first spiral transferring
It send leaf (204), the shell (203) inside the slag-drip opening and the furnace body (1) by being connected to, and the shell (203) is remote
Height from the furnace body (1) one end is higher than the height close to the furnace body (1) one end, and the first rotating shaft (202) is along described
The central axes setting of shell (203) drives in the shell (203), and by the driving motor (201), first spiral
Conveying leaf (204) is fixed on the first rotating shaft (202) outer wall along the axis direction of the first rotating shaft (202), the shell
It is connected to inside body (203) and the furnace body (1), the first rotating shaft (202) extends into the furnace body (1) through the slag-drip opening
Inside is located at one section of first rotating shaft (202) in the furnace body (1) and is equipped with multiple second helical feed leaves (205), end
Portion is fixed with first bevel gear (23), and multiple second helical feed leaves (205) are along the axis of the first rotating shaft (202)
Line direction is fixed on the first rotating shaft (202) outer wall, and the second helical feed leaf (205) is far from the first rotating shaft
(202) side is outward extended with baffle (206), and the baffle (206) is vertical with the second helical feed leaf (205) surface,
It is provided with through-hole (2061) on the baffle (206), is equipped with second bevel gear (25) in the furnace body (1), the second bevel gear
(25) it is mounted on the bell by the second shaft (24), second shaft (24) and the bell are rotatablely connected, described
Second bevel gear (25) is mounted on the second shaft (24) bottom and is fixedly connected with second shaft (24), described second
Bevel gear (25) is meshed with the first bevel gear (23), is fixed with scraper plate (26) on second shaft (24), described to scrape
Plate (26) extends radially outwardly along second shaft (24), and the scraper plate (26) is obliquely installed and is located at the second bevel gear
(25) lower section side, and the scraper plate (26) is higher than far from the height of described second shaft (24) one end positioned at described second turn
The height of axis (24) one end is equipped with infrared distance sensor (118) on bell (1) bottom wall, the infrared distance measurement sensing
The probe of device (118) is towards whole down when setting；
Collecting box (7) bottom opening, the opening underface are fixed with pulverizer (8), the outlet of the pulverizer (8)
Vibrating screen (9) are installed in lower section, and the vibrating screen (9) includes vibrator (91) and sieve plate (92), and the sieve plate (92) is obliquely installed,
The vibrator (91) is fixed on the sieve plate (92) bottom, and the sieve plate (92) is arranged right below fine slag case (10), the sieve
It is fixed with thick slag case (11) immediately below plate (92) lower end, fine slag case (10) bottom is provided with discharge gate, and the discharge gate is just
Lower section is equipped with floation tank (12).
2. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
Distance on the first rotating shaft (202) between the two neighboring second helical feed leaf (205) is by close to described second
Shaft (24) one end is incremented by far from described second shaft (24) one end, and the spiral of the second helical feed leaf (205) half
Diameter close to described second shaft (24) one end to far from described second shaft (24) one end from being gradually increased.
3. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
It is fixed material storing box (14) on the bell (15), material storing box (14) bottom is equipped with opening.
4. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 3, it is characterised in that:
Screw mixer (13) are equipped with below the material storing box (14), the screw mixer (13) is fixed on the bell (15)
On, the screw mixer (13) is located at the underface of the material storing box (14) bottom opening, the screw mixer (13)
Outlet is connected to the feed inlet.
5. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 3, it is characterised in that:
It further include automatic feeding (18), the discharge port of the automatic feeding (18) is located on the material storing box (14)
Side, the automatic feeding (18) are screw conveyor or conveyer belt.
6. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
Described exhaust pipe (173) one end is connected with heat exchanger (6), and the heat exchanger (6) is plate heat exchanger (6) or tube fin type heat exchange
Device (6).
7. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
The heat storage (211) is honeycomb-shaped oxidizing aluminium.
8. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
The air blower (5) and the air-introduced machine (4) are bolted on ground.
9. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
Ultraviolet flame detector (221) and flame relay (222) are respectively and fixedly provided in each burner (22).
10. a kind of modified natural gas heat accumulated type lead-melting furnace according to claim 1, it is characterised in that:
Heating chamber (17) periphery is equipped with thermal insulation layer (16).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811439936.9A CN109579523B (en) | 2018-11-29 | 2018-11-29 | Improved natural gas heat accumulating type lead melting furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811439936.9A CN109579523B (en) | 2018-11-29 | 2018-11-29 | Improved natural gas heat accumulating type lead melting furnace |
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| CN109579523A true CN109579523A (en) | 2019-04-05 |
| CN109579523B CN109579523B (en) | 2020-05-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110793320A (en) * | 2019-10-24 | 2020-02-14 | 山东豪门铝业有限公司 | Melt aluminium stove waste heat recovery and recycle device |
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| US7246506B2 (en) * | 1999-11-26 | 2007-07-24 | Jfe Engineering Corporation | Thermal storage medium using a hydrate and apparatus thereof, and method for producing the thermal storage medium |
| CN101514871A (en) * | 2009-04-10 | 2009-08-26 | 株洲火炬工业炉有限责任公司 | Heat accumulated type lead-melting furnace |
| CN204786471U (en) * | 2015-06-23 | 2015-11-18 | 济宁矿业集团有限公司 | Boiler slagging -off machine |
| CN106678778A (en) * | 2017-02-08 | 2017-05-17 | 安徽鹰龙工业设计有限公司 | Efficient and environment-friendly cyclone boiler |
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2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7246506B2 (en) * | 1999-11-26 | 2007-07-24 | Jfe Engineering Corporation | Thermal storage medium using a hydrate and apparatus thereof, and method for producing the thermal storage medium |
| CN101514871A (en) * | 2009-04-10 | 2009-08-26 | 株洲火炬工业炉有限责任公司 | Heat accumulated type lead-melting furnace |
| CN204786471U (en) * | 2015-06-23 | 2015-11-18 | 济宁矿业集团有限公司 | Boiler slagging -off machine |
| CN106678778A (en) * | 2017-02-08 | 2017-05-17 | 安徽鹰龙工业设计有限公司 | Efficient and environment-friendly cyclone boiler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110793320A (en) * | 2019-10-24 | 2020-02-14 | 山东豪门铝业有限公司 | Melt aluminium stove waste heat recovery and recycle device |
| CN110793320B (en) * | 2019-10-24 | 2021-07-30 | 山东豪门铝业有限公司 | Melt aluminium stove waste heat recovery and recycle device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109579523B (en) | 2020-05-05 |
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Denomination of invention: An improved natural gas regenerative lead melting furnace Effective date of registration: 20210325 Granted publication date: 20200505 Pledgee: Dayu County Finance Bureau Pledgor: DAYU MINGFA MINING Co.,Ltd. Registration number: Y2021980001976 |
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Denomination of invention: An improved natural gas regenerative lead melting furnace Effective date of registration: 20220701 Granted publication date: 20200505 Pledgee: Dayu County Finance Bureau Pledgor: DAYU MINGFA MINING Co.,Ltd. Registration number: Y2022980009711 |