CN109506458A - Energy circulation sintering furnace and LiFePO4 process units - Google Patents
Energy circulation sintering furnace and LiFePO4 process units Download PDFInfo
- Publication number
- CN109506458A CN109506458A CN201811524590.2A CN201811524590A CN109506458A CN 109506458 A CN109506458 A CN 109506458A CN 201811524590 A CN201811524590 A CN 201811524590A CN 109506458 A CN109506458 A CN 109506458A
- Authority
- CN
- China
- Prior art keywords
- burner hearth
- pipe
- interlayer metal
- sintering furnace
- furnace body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000008569 process Effects 0.000 title claims abstract description 9
- 229910052493 LiFePO4 Inorganic materials 0.000 title claims abstract description 7
- 239000011229 interlayer Substances 0.000 claims abstract description 50
- 229910052751 metal Inorganic materials 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 238000010304 firing Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 35
- 230000008676 import Effects 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
- 239000000498 cooling water Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 9
- 238000004321 preservation Methods 0.000 claims description 6
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 85
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 239000005955 Ferric phosphate Substances 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229940032958 ferric phosphate Drugs 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 229910000399 iron(III) phosphate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
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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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
- F27B9/028—Multi-chamber type furnaces
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/04—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity adapted for treating the charge in vacuum or special atmosphere
- F27B9/045—Furnaces with controlled atmosphere
- F27B9/047—Furnaces with controlled atmosphere the atmosphere consisting of protective gases
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
- F27B9/063—Resistor heating, e.g. with resistors also emitting IR rays
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on rails, e.g. under the action of scrapers or pushers
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3005—Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/40—Arrangements of controlling or monitoring 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
- F27B2009/122—Preheating
-
- 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
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/12—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity with special arrangements for preheating or cooling the charge
- F27B2009/124—Cooling
-
- 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
- F27M2003/04—Sintering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Tunnel Furnaces (AREA)
- Furnace Details (AREA)
Abstract
A kind of energy circulation sintering furnace and LiFePO4 process units provided by the invention, are related to battery material manufacture technology field, comprising: furnace body, furnace interior have Packed burner hearth；Burner hearth is divided into heating zone, firing zone and cooling zone from input end to the direction of outlet end；Temperature control system, temperature control system are arranged on furnace body；Propulsion system, propulsion system are arranged on furnace body；Power Cycle, Power Cycle include interlayer metal set and at least one set of gas path pipe, and interlayer metal set has hollow interlayer inner cavity；Interlayer metal set is mounted on the cooling zone of burner hearth, and gas path pipe includes air inlet pipe and an air outlet pipe；Air inlet pipe is connected to interlayer metal set, and the inner cavity for covering to interlayer metal is filled with protection gas, is preheated using the heat in burner hearth to protection gas；Escape pipe connection is between the inner cavity that burner hearth and interlayer metal cover；Air inlet pipe and or escape pipe on solenoid valve is installed.
Description
Technical field
The present invention relates to battery material manufacture technology fields, more particularly, to a kind of energy circulation sintering furnace and ferric phosphate
Lithium process units.
Background technique
Sintering furnace is that powder compact is instigated to obtain the dedicated of required Physical and mechanical properties and microstructure by sintering
Equipment.Sintering furnace can be used for drying the slurry on silicon wafer, the organic principle in removal slurry, complete Al-BSF and grid line burning
Knot.
In the sintering furnace of the prior art, used tunnel type battery material sintering furnace usually requires to use in discharge port
Water circulation interlayer is cooled down, while needing to be passed through protection gas in the middle section of sintering furnace burner hearth and feed inlet, the discharge port at both ends
Body controls the oxidation/reduction atmosphere that sintering needs with this, and the gas circuit and water route are provided separately.
But result in this way is exactly, the cooling water in water route can take away a large amount of heat, cause energy
Loss；And in the gas circuit of the other side, the protective gas into tunnel needs to be heated inside burner hearth again.So the prior art
In sintering furnace overall power consumption it is big, higher operating costs.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of energy circulation sintering furnace and LiFePO4 process units
The technical issues of sintering furnace overall power consumption present in technology is big, higher operating costs.
A kind of energy circulation sintering furnace provided by the invention, comprising:
Furnace body, the furnace interior have Packed burner hearth；The burner hearth is divided into from input end to the direction of outlet end
Heating zone, firing zone and cooling zone；
Temperature control system, the temperature control system is arranged on the furnace body, for adjusting the temperature in the burner hearth
Degree；
Propulsion system, the propulsion system is arranged on the furnace body, for transporting workpiece in burner hearth；
Power Cycle, the Power Cycle include interlayer metal set and at least one set of gas path pipe, the folder
Layer metallic sheath has hollow interlayer inner cavity；The interlayer metal set is mounted on the cooling zone of the burner hearth, the gas path pipe
Including air inlet pipe and an air outlet pipe；
The air inlet pipe is connected to interlayer metal set, and the inner cavity for covering to the interlayer metal is filled with protection gas,
Protection gas is preheated using the heat in burner hearth；Escape pipe connection the inner cavity that the burner hearth and the interlayer metal cover it
Between, for the protection gas after preheating to be filled in the burner hearth；
The air inlet pipe and or the escape pipe on solenoid valve is installed, for controlling the air inlet pipe or the outlet
The opening and closing of pipe.
Further, in an embodiment of the present invention, the inner cavity of the interlayer metal set is provided with demarcation plate, is used for institute
The inner cavity for stating interlayer metal set is divided into water route storehouse and gas circuit storehouse；The air inlet pipe and the escape pipe and the gas circuit storehouse connect
It is logical；
It is provided with waterway pipe on the water route storehouse, for being passed through recirculated cooling water into the water route storehouse.
Further, in an embodiment of the present invention, further includes:
Import displacement gas chamber；
The inlet communication of the import displacement gas chamber and the furnace body, the import of the import displacement gas chamber and the furnace body
Between import hermatic door is installed；
First protection gas is installed on the import displacement gas chamber and is passed through mouth.
Further, in an embodiment of the present invention, further includes:
Outlet displacement gas chamber；
The outlet of outlet the displacement gas chamber and the furnace body, the outlet of outlet the displacement gas chamber and the furnace body
Between exit seal door is installed；
The second protection gas is installed on the outlet displacement gas chamber and is passed through mouth.
Further, in an embodiment of the present invention, the furnace body includes shell and furnace lining；
The furnace lining includes liner and heat preservation internal layer；The inside of the shell, the heat preservation internal layer is arranged in the liner
Between the shell and the liner.
Further, in an embodiment of the present invention, the temperature control system includes controller and several ceramic tubes, institute
It states to be wound on ceramic tube and is electrically connected heating wire with the controller；
Several ceramic tubes for being wound with heating wire are uniformly mounted on the upper wall and lower wall of the burner hearth, for described
Burner hearth heating.
Further, in an embodiment of the present invention, the temperature control system further includes being electrically connected with the controller
Several temperature detectors and several alarms；
Several temperature detectors are used for respectively to the heating zone, the firing zone and the real-time temperature of the cooling zone
Degree is monitored；
Several alarms connect with corresponding several temperature detector electricals respectively.
Further, in an embodiment of the present invention, the propulsion system includes the slideway longitudinally disposed along the burner hearth
Item, longitudinal sliding motion is provided with automatically controlled push plate on the slideway item；
The slideway item and the material of the automatically controlled push plate are all made of corundum-mullite.
Further, in an embodiment of the present invention, the escape pipe is tiltedly mounted on the burner hearth and interlayer gold
Between the inner cavity for belonging to set；
The escape pipe relative to burner hearth longitudinal direction tilt angle between 30 ° -60 °, and the gas output side of escape pipe
To opposite with the carriage direction of workpiece.
Present invention also provides a kind of LiFePO4 process units, including the energy circulation sintering furnace.
In the above-mentioned technical solutions, in order to improve the utilization rate of energy, so changing to sintering furnace in the prior art
Into, Power Cycle is devised in its structure, using recycling for energy, greatly reduces the loss of energy, thus
Greatly reduce the cost used.For sintering furnace in compared with the prior art, original sintering furnace gas circuit and water route are to separate
Be arranged, cooling water by water can take away a large amount of heat, cause the loss of energy；And in the gas circuit of the other side, into
The protective gas for entering tunnel needs to be heated inside burner hearth again, can also consume energy.And in the prior art, by devising energy
The circulatory system is measured, so can preheat using the heat of cooling consumption to protection gas, makes the overall function of sintering furnace
It is good, energy is recycled, use cost is substantially reduced.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the perspective view of energy circulation sintering furnace provided in an embodiment of the present invention；
Fig. 2 is the positional structure schematic diagram of import displacement gas chamber provided in an embodiment of the present invention and outlet displacement gas chamber；
Fig. 3 is the first structure diagram of Power Cycle provided in an embodiment of the present invention；
Fig. 4 is the second structural schematic diagram of Power Cycle provided in an embodiment of the present invention.
Appended drawing reference:
1- furnace body；2- propulsion system；3- Power Cycle；
11- heating zone；12- firing zone；The cooling zone 13-；
14- import displacement gas chamber；The outlet 15- displacement gas chamber；
31- interlayer metal set；32- air inlet pipe；33- escape pipe；
34- demarcation plate；The water route 35- storehouse；36- gas circuit storehouse.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1 is the perspective view of energy circulation sintering furnace provided in an embodiment of the present invention；Fig. 2 is provided in an embodiment of the present invention
The positional structure schematic diagram of import displacement gas chamber and outlet displacement gas chamber；
Fig. 3 is the first structure diagram of Power Cycle provided in an embodiment of the present invention；As shown in Figure 1-3, this reality
A kind of energy circulation sintering furnace of example offer is provided, comprising:
Furnace body 1 has Packed burner hearth inside the furnace body 1；The burner hearth divides from input end to the direction of outlet end
For heating zone 11, firing zone 12 and cooling zone 13；
Temperature control system, the temperature control system is arranged on the furnace body 1, for adjusting the temperature in the burner hearth
Degree；
Propulsion system 2, the propulsion system 2 is arranged on the furnace body 1, for transporting workpiece in burner hearth；
Power Cycle 3, the Power Cycle 3 include interlayer metal set 31 and at least one set of gas path pipe, institute
Stating interlayer metal set 31 has hollow interlayer inner cavity；The interlayer metal set 31 is mounted on the cooling zone 13 of the burner hearth, institute
Stating gas path pipe includes air inlet pipe 32 and escape pipe 33；
The air inlet pipe 32 is connected to interlayer metal set 31, for being filled with guarantor to the inner cavity of interlayer metal set 31
Gas is protected, protection gas is preheated using the heat in burner hearth；The connection of escape pipe 33 is in the burner hearth and the interlayer metal set
Between 31 inner cavity, for the protection gas after preheating to be filled in the burner hearth；
The air inlet pipe 32 and or the escape pipe 33 on solenoid valve is installed, for controlling the air inlet pipe 32 or institute
State the opening and closing of escape pipe 33.
In technical solution provided by the present application, in order to improve the utilization rate of energy, so to sintering in the prior art
Furnace improves, and devises Power Cycle 3 in its structure, using recycling for energy, greatly reduces energy
Loss, to greatly reduce the cost used.For sintering furnace in compared with the prior art, original sintering furnace gas circuit and water
Road is provided separately, cooling water by water can take away a large amount of heat, cause the loss of energy；And in other side gas
Lu Zhong, the protective gas into tunnel need to be heated inside burner hearth again, can also consume energy.And in the prior art, pass through
Power Cycle 3 is devised, so can preheat using the heat of cooling consumption to protection gas, makes the whole of sintering furnace
Body function is good, recycles to energy, substantially reduces use cost.
Specifically, can be utilized respectively temperature control system when being sintered to workpiece and propulsion system 2 adjusts
Temperature in the burner hearth and workpiece is transported into burner hearth, workpiece is made to be able to carry out sintering processes.Wherein, the temperature control
System and the propulsion system 2 can be installed according to the demand of those skilled in the art, be selected, and be with reference to the prior art
Can, just do not do specific restriction herein.
And the Power Cycle 3 includes interlayer metal set 31 and at least one set of gas path pipe, the interlayer metal
Set 31 has hollow interlayer inner cavity, can be used to be filled with gas perhaps liquid namely protection gas or cooling water in the lumen.
After interlayer metal set 31 is mounted on the cooling zone 13 of the burner hearth, once cooling water or protection gas pass through the folder
After the inner cavity of layer metallic sheath 31, the heat in burner hearth just can be absorbed, the displacement of energy is formed.
So this design structure is based on, in order to preheat using the heat in burner hearth to protection gas, so that it may
Gas path pipe is installed on interlayer metal set 31, gas will be protected first to be passed into interlayer metal set 31 using gas path pipe, passed through
It is re-filled in burner hearth after preheating.
Specifically, the gas path pipe includes air inlet pipe 32 and escape pipe 33, the air inlet pipe 32 and the interlayer metal
31 connection of set can will protect gas to be filled with to the inner cavity of interlayer metal set 31 using the air inlet pipe 32, and due to folder
Layer metallic sheath 31 is mounted on the cooling zone 13 of furnace body 1, and the heat that can be absorbed into burner hearth, this makes it possible to using in burner hearth
Heat is to protection gas preheating.
Since the escape pipe 33 connection is between the burner hearth and the inner cavity of interlayer metal set 31, so when protection
Gas is after interlayer metal set 31 adequately preheat, it will be able to enter in the burner hearth by escape pipe 33, make to protect
Gas enters in burner hearth after preheating, the furnace temperature decision in interference burner hearth that can be as few as possible；Meanwhile when protection gas band
Heat has been walked, can also have been played the role of to 13 cold-zone of cooling zone.Wherein it is possible to by the air inlet pipe 32 and or it is described go out
Solenoid valve is installed to control the opening and closing of the air inlet pipe 32 or the escape pipe 33 on tracheae 33, enables to protect gas
Controllable output and input.
In conclusion changing the import pathway and preheating method of protection gas, energy by the Power Cycle 3
Enough energy that script should be cooled down loss are transferred for preheating to protection gas, and this makes it possible to the circulation benefits for realizing energy
With greatly the loss of reduction energy, reduces use cost.
Fig. 4 is the second structural schematic diagram of Power Cycle 3 provided in an embodiment of the present invention；As shown in figure 4, the folder
The inner cavity of layer metallic sheath 31 is provided with demarcation plate 34, gentle for the inner cavity of interlayer metal set 31 to be divided into water route storehouse 35
Road storehouse 36；The air inlet pipe 32 and the escape pipe 33 are connected to the gas circuit storehouse 36；
It is provided with waterway pipe on the water route storehouse 35, for being passed through recirculated cooling water into the water route storehouse 35.
So the interlayer metal can be covered to 31 inner cavity by disposing demarcation plate 34 in interlayer metal set 31
It is divided into water route storehouse 35 and gas circuit storehouse 36, is still passed through cooling water using water route storehouse 35, cooling zone 13 is cooled down；And in gas
In road storehouse 36, protection gas can be made to be passed through in gas circuit storehouse 36 and preheated using the heat of burner hearth, be then transported in burner hearth again,
Realization recycles heat.
And in actually manufacture use, those skilled in the art can select to use interlayer metal set according to the actual situation
31 wholes are passed through protection gas or a part is passed through protection gas another part and is passed through cooling water.
Further, in an embodiment of the present invention, further includes:
Import displacement gas chamber 14；
The inlet communication of the import displacement gas chamber 14 and the furnace body 1, the import displacement gas chamber 14 and the furnace body 1
Import between import hermatic door is installed；
First protection gas is installed on the import displacement gas chamber 14 and is passed through mouth.
Using import displacement gas chamber 14, a large amount of protection gas (such as nitrogen) can be passed through rapidly after workpiece entrance, set
The oxygen in the import displacement gas chamber 14 is changed, until oxygen content reaches technique requirement, import hermatic door is then opened again, allows work
Part is continued into burner hearth and is sintered.It can so guarantee that the oxygen content in burner hearth is stable to require in technique.
Further, in an embodiment of the present invention, further includes:
Outlet displacement gas chamber 15；
The outlet of outlet the displacement gas chamber 15 and the furnace body 1, the outlet displacement gas chamber 15 and the furnace body 1
Outlet between exit seal door is installed；
Second protection gas is installed on the outlet displacement gas chamber 15 and is passed through mouth.
Similarly, gas chamber 15 is replaced using outlet, a large amount of protection gas (such as nitrogen) can be passed through before workpiece entrance,
The oxygen in the outlet displacement gas chamber 15 is replaced, is required until oxygen content reaches technique, is then opened exit seal door again, allow
Workpiece continues into outlet displacement gas chamber 15 and is exited.Can so guarantee oxygen content in burner hearth it is stable in work
Skill requirement.
Preferably, in an embodiment of the present invention, the furnace body 1 includes shell and furnace lining；
The furnace lining includes liner and heat preservation internal layer；The inside of the shell, the heat preservation internal layer is arranged in the liner
Between the shell and the liner.
Further, in an embodiment of the present invention, the temperature control system includes controller and several ceramic tubes, institute
It states to be wound on ceramic tube and is electrically connected heating wire with the controller；
Several ceramic tubes for being wound with heating wire are uniformly mounted on the upper wall and lower wall of the burner hearth, for described
Burner hearth heating.When being heated in burner hearth, the heating wire can be powered, in the uniform heating respectively up and down of burner hearth, and
And be located at burner hearth or more heater strip can independent temperature control, and thermal detector is set, real time temperature is monitored.
Further, in an embodiment of the present invention, the temperature control system further includes being electrically connected with the controller
Several temperature detectors and several alarms；
Several temperature detectors are used for respectively to the heating zone 11, the firing zone 12 and the cooling zone 13
Real time temperature is monitored；
Several alarms connect with corresponding several temperature detector electricals respectively.
It can be to the real-time of the heating zone 11, the firing zone 12 and the cooling zone 13 using the temperature detector
Temperature is monitored, and when overheating problem has occurred in the temperature of each warm area, is connected with the temperature detector in corresponding warm area
Alarm will sound an alarm.For example, sounding the alarm or sounding an alarm flashing.
Further, in an embodiment of the present invention, the propulsion system 2 includes the slideway longitudinally disposed along the burner hearth
Item, longitudinal sliding motion is provided with automatically controlled push plate on the slideway item；
The slideway item and the material of the automatically controlled push plate are all made of corundum-mullite.
Workpiece can be fed through in burner hearth using the propulsion system 2, it is only necessary to workpiece is placed in automatically controlled push plate,
Slide automatically controlled push plate on the slideway item.And wear intensity can be reduced using corundum-mullite, make burner hearth
Service life lengthen.Wherein, the specific structure of the propulsion system 2 can also be replaced according to the actual situation, this field
Technical staff voluntarily can select and design, and just repeat no more herein.
Further, in an embodiment of the present invention, the escape pipe 33 is tiltedly mounted on the burner hearth and the interlayer
Between the inner cavity of metallic sheath 31；
The escape pipe 33 relative to burner hearth longitudinal direction tilt angle between 30 ° -60 °, and the gas of escape pipe 33 is defeated
Direction is opposite with the carriage direction of workpiece out.
Preferably, can be at 45 ° relative to the tilt angle setting of burner hearth longitudinal direction by the escape pipe 33, inclined by this
Oblique setting can guarantee opposite reverse flow between protection gas and workpiece in burner hearth, be conducive to the protection of nitrogen.
Present invention also provides a kind of LiFePO4 process units, including the energy circulation sintering furnace.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of energy circulation sintering furnace characterized by comprising
Furnace body, the furnace interior have Packed burner hearth；The burner hearth is divided into heating from input end to the direction of outlet end
Area, firing zone and cooling zone；
Temperature control system, the temperature control system is arranged on the furnace body, for adjusting the temperature in the burner hearth；
Propulsion system, the propulsion system is arranged on the furnace body, for transporting workpiece in burner hearth；
Power Cycle, the Power Cycle include interlayer metal set and at least one set of gas path pipe, the interlayer gold
Belonging to set has hollow interlayer inner cavity；The interlayer metal set is mounted on the cooling zone of the burner hearth, and the gas path pipe includes
Air inlet pipe and an air outlet pipe；
The air inlet pipe is connected to interlayer metal set, and the inner cavity for covering to the interlayer metal is filled with protection gas, is utilized
Heat in burner hearth is to protection gas preheating；The escape pipe is connected between the inner cavity that the burner hearth and the interlayer metal cover,
For the protection gas after preheating to be filled in the burner hearth；
The air inlet pipe and or the escape pipe on solenoid valve is installed, for controlling the air inlet pipe or the escape pipe
It opens and closes.
2. energy circulation sintering furnace according to claim 1, which is characterized in that the inner cavity of the interlayer metal set is provided with
Demarcation plate, the inner cavity for covering the interlayer metal are divided into water route storehouse and gas circuit storehouse；The air inlet pipe and the escape pipe
It is connected to the gas circuit storehouse；
It is provided with waterway pipe on the water route storehouse, for being passed through recirculated cooling water into the water route storehouse.
3. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that further include:
Import displacement gas chamber；
The inlet communication of the import displacement gas chamber and the furnace body, between the import displacement gas chamber and the import of the furnace body
Import hermatic door is installed；
First protection gas is installed on the import displacement gas chamber and is passed through mouth.
4. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that further include:
Outlet displacement gas chamber；
The outlet of outlet the displacement gas chamber and the furnace body, between the outlet displacement gas chamber and the outlet of the furnace body
Exit seal door is installed；
The second protection gas is installed on the outlet displacement gas chamber and is passed through mouth.
5. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that the furnace body includes shell and furnace lining；
The furnace lining includes liner and heat preservation internal layer；The inside of the shell is arranged in the liner, and the heat preservation internal layer is located at
Between the shell and the liner.
6. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that the temperature control system includes control
Device processed and several ceramic tubes are wound on the ceramic tube and are electrically connected heating wire with the controller；
Several ceramic tubes for being wound with heating wire are uniformly mounted on the upper wall and lower wall of the burner hearth, for the burner hearth
Heating.
7. energy circulation sintering furnace according to claim 6, which is characterized in that the temperature control system further includes and institute
State several temperature detectors and several alarms of controller electrical connection；
Several temperature detectors for respectively to the real time temperature of the heating zone, the firing zone and the cooling zone into
Row monitoring；
Several alarms connect with corresponding several temperature detector electricals respectively.
8. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that the propulsion system includes along described
The longitudinally disposed slideway item of burner hearth, longitudinal sliding motion is provided with automatically controlled push plate on the slideway item；
The slideway item and the material of the automatically controlled push plate are all made of corundum-mullite.
9. energy circulation sintering furnace according to claim 1 or 2, which is characterized in that the escape pipe is tiltedly mounted on institute
It states between burner hearth and the inner cavity of interlayer metal set；
The escape pipe relative to burner hearth longitudinal direction tilt angle between 30 ° -60 °, and the gas outbound course of escape pipe with
The carriage direction of workpiece is opposite.
10. a kind of LiFePO4 process units, which is characterized in that followed including energy as claimed in any one of claims 1-9 wherein
Ring sintering furnace.
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| CN201811524590.2A CN109506458A (en) | 2018-12-13 | 2018-12-13 | Energy circulation sintering furnace and LiFePO4 process units |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811524590.2A CN109506458A (en) | 2018-12-13 | 2018-12-13 | Energy circulation sintering furnace and LiFePO4 process units |
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Application publication date: 20190322 |