CN106595298A - Overlapping-type double-layer electrical heating roller kiln - Google Patents

Overlapping-type double-layer electrical heating roller kiln Download PDF

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Publication number
CN106595298A
CN106595298A CN201611256983.0A CN201611256983A CN106595298A CN 106595298 A CN106595298 A CN 106595298A CN 201611256983 A CN201611256983 A CN 201611256983A CN 106595298 A CN106595298 A CN 106595298A
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CN
China
Prior art keywords
section
kiln body
roller
way
kiln
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Granted
Application number
CN201611256983.0A
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Chinese (zh)
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CN106595298B (en
Inventor
陈维军
黄建明
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Chongqing Lingda Industrial Co Ltd
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Chongqing Lingda Industrial Co Ltd
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Priority to CN201611256983.0A priority Critical patent/CN106595298B/en
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Publication of CN106595298B publication Critical patent/CN106595298B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06Furnaces 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
    • F27B9/062Furnaces 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
    • F27B9/063Resistor heating, e.g. with resistors also emitting IR rays
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12Furnaces 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14Furnaces 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
    • F27B9/20Furnaces 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/3005Details, accessories, or equipment peculiar to furnaces of these types arrangements for circulating gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36Arrangements of heating devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38Arrangements of devices for charging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/39Arrangements of devices for discharging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/40Arrangements of controlling or monitoring devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/004Systems for reclaiming waste heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/12Furnaces 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
    • F27B2009/122Preheating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/36Arrangements of heating devices
    • F27B2009/3638Heaters located above and under the track
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38Arrangements of devices for charging
    • F27B2009/382Charging
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/30Details, accessories, or equipment peculiar to furnaces of these types
    • F27B9/38Arrangements of devices for charging
    • F27B2009/384Discharging

Abstract

The invention discloses an overlapping-type double-layer electrical heating roller kiln. The overlapping-type double-layer electrical heating roller kiln comprises a kiln body and an automatic material inlet and outlet circulation system, wherein the kiln body comprises a lower-layer kiln body and an upper-layer kiln body; the front end of the upper-layer kiln body is provided with a material inlet; the front end of the lower-layer kiln body is provided with a material outlet; the rear end of the upper-layer kiln body is aligned with the rear end of the lower-layer kiln body; the automatic material inlet and outlet circulation system comprises a material inlet mechanism, a material outlet mechanism and a material transfer mechanism; the upper-layer kiln body and the lower-layer kiln body are separately internally provided with a roller bed; a waste heat preheating section, a pre-drying section, a drying section, a warming section, a sintering zone and a cooling zone are sequentially arranged in the kiln body along the advancing direction of materials; the waste heat preheating section and the pre-drying section are arranged in the upper-layer kiln body; the drying section, the warming section, the sintering zone and the cooling zone are arranged in the lower-layer kiln body; the pre-drying section comprises a waste heat pre-drying section and a heating pre-drying section; an exhaust fan is arranged in the cooling zone; the air outlet of the exhaust fan separately communicates with the waste heat preheating section and the waste heat pre-drying section; and the overlapping-type double-layer electrical heating roller kiln further comprises an automatic temperature control system.

Description

Superposing type double-layer electric heating roller way kiln
Technical field
The invention belongs to kiln technical field, is specifically a kind of superposing type double-layer electric heating roller way kiln.
Background technology
Single channel unidirectional operation being adopted traditional electrical kiln, product is in electric kiln body through preheating zone, the thermal treatment zone, high temperature more Area, heat preservation zone and cooling area, and heating tube is distributed with the both sides for burning till duct the product in kiln is heated, extensively application Produce in structural ceramicss, function ceramics, fluorescent material, rare earth material, lithium battery material (cobalt acid lithium), magnetic material, nano material etc. The sintering of product, but this electrical kiln heat utilization efficiency in heating process is low, high energy consumption, and improving the efficiency of energy utilization of kiln already becomes Industry-by-industry carries out the emphasis of energy-saving and emission-reduction.
The Chinese patent of Publication No. CN 205262173U discloses a kind of double-deck sintering kiln, including kiln, and centre is protected Kiln is divided into two-layer by warm layer, and each layer has successively preheating zone, high-temperature region and cooling zone, and bilevel high-temperature region is located at kiln Interlude, upper strata preheating zone is located at kiln right side with lower floor cooling zone, and lower floor preheating zone is located at kiln left side with upper strata cooling zone, Each cooling zone configures a cooling and squeezes into blower fan, and upper strata cooling zone is also configured with a cooling takes out hot-air blower cooling hot blast is sent to Lower floor preheating zone, and lower floor cooling zone is sent to upper strata preheating zone, each layer preheating zone configuration one in intermediate insulating layer perforate hot blast Platform wet-emitting blower, each section of kiln has roll-type transporter, and there is travelling platform at kiln two ends.Although the double-deck sintering kiln is one Determine the technical purpose that energy saving can be reached in degree, but, the two-layer independent operating up and down of the kiln, equivalent to two lists The superposition of the kiln of passage unidirectional operation, it is impossible to play the technique effect for reducing floor space.
The content of the invention
In view of this, it is an object of the invention to provide a kind of superposing type double-layer electric heating roller way kiln, with automatization The advantage that degree is high, energy-saving, floor space is little and production capacity is high.
To reach above-mentioned purpose, the present invention provides following technical scheme:
A kind of superposing type double-layer electric heating roller way kiln, including kiln body and automatic feed/discharge blood circulation;
The kiln body includes lower floor's kiln body and the upper strata kiln body being arranged on above lower floor's kiln body, the front end of the upper strata kiln body Charging aperture is provided with, the front end of lower floor's kiln body is provided with discharging opening, after the rear end of the upper strata kiln body and lower floor's kiln body End alignment, the automatic feed/discharge blood circulation includes being correspondingly arranged at feeding mechanism and the discharging opening with the charging aperture The discharging mechanism that is correspondingly arranged and being arranged between the upper strata kiln body rear end and lower floor's kiln body rear end is used for the upper strata kiln Material transporting mechanism in internal material transfer to lower floor's kiln body;It is respectively equipped with the upper strata kiln body and lower floor's kiln body For the roller-way for driving material to advance;
Along the direction of advance of the material, waste heat preheating section, prebake section, drying section, intensification are sequentially provided with the kiln body Section, sintering zone and cooling area, wherein, the waste heat preheating section and prebake section are arranged in the upper strata kiln body, the drying Section, warming-up section, sintering zone and cooling area are arranged in lower floor's kiln body;The prebake section is included near waste heat preheating The waste heat prebake section and the heating prebake section away from the waste heat preheating section of section;Air exhauster, institute are provided with the cooling area The air outlet for stating air exhauster is connected respectively with the waste heat preheating section and waste heat prebake section;
The length ratio of the waste heat preheating section, prebake section, drying section, warming-up section, sintering zone and cooling area is 7.5:22.5: 6:10:8:Length ratio between 21, and the waste heat prebake section and the heating prebake section is 12.5:10;
The feeding mechanism includes charging roller, for by the elevator of material lifting to the upper strata kiln body place height and position Structure and the feeding roller-way for material to be delivered to the charging aperture;The hoisting mechanism includes lift carriage and lifting bin, The lifting crossbeam that lifting motor and rotatable engagement are arranged in the lift carriage is provided with the top of the lift carriage, it is described to carry The worm type of reduction gearing for driving the lifting crossbeam to rotate is provided between the output shaft of lifting motor and the lifting crossbeam I, the crossbeam that lifted is respectively arranged at two ends with top sprocket wheel, and the bottom of the lift carriage corresponds with the top sprocket wheel Be provided with bottom sprocket wheel, be provided with lifting chain between the corresponding top sprocket wheel and bottom sprocket wheel, two described lifted chain respectively with The lifting bin is fixedly connected;
The lifting bin includes splicing roller-way, and installing rack is provided with below the splicing roller-way, and the installing rack is provided with use In the splicing motor for driving the splicing roller bed rotation;The feeding roller-way include being docked with the splicing roller-way and be arranged on The parallel auxiliary roller-way of roller-way in the upper strata kiln body, the auxiliary roller-way and the roller-way being arranged at the charging aperture Between be provided with chain type feed mechanism;
Also include auto temperature controlled system, the temperature curve that the auto temperature controlled system is controlled in the kiln body is:
Temperature in the upper strata kiln body gradually increases along the material direction of advance, and the temperature in the upper strata kiln body Line of writing music is:
y=T1x/30a+T0
Wherein, a for kiln body element length, i.e., described waste heat preheating section, prebake section, drying section, warming-up section, sintering zone and drop The length of warm area is respectively 7.5a, 22.5a, 6a, 10a, 8a, 21a;
T1For the maximum temperature of upper strata kiln rear end;T0For room temperature;
Temperature curve in the drying section and warming-up section is:
y=(T2-T1)(x-30a)/16a+T1
Wherein, T2For sintering temperature;
Temperature curve in the sintering zone is:y=T2
Temperature curve in the cooling area is:y=(T3-T2)(x-54a)/21a+T2
Wherein, T3For the drop temperature of setting.
Further, the Resistant heating device I being provided with the waste heat prebake section below roller-way, and the waste heat The top of prebake section is connected with the air outlet of the air exhauster.
Further, it is provided with respectively positioned at the Resistant heating device of the upper and lower both sides of the roller-way in the heating prebake section Ⅱ。
Further, it is provided with the drying section respectively positioned at the Resistant heating device III of the upper and lower both sides of the roller-way.
Further, the warming-up section includes Resistant heating section and globar bringing-up section, and the Resistant heating section is close The drying section is arranged, and is provided with the Resistant heating section respectively positioned at the Resistant heating dress of the upper and lower both sides of the roller-way IV is put, is provided with the globar bringing-up section respectively positioned at the globar heater I of the upper and lower both sides of the roller-way;The resistance Length ratio between silk bringing-up section and the globar bringing-up section is 4:6.
Further, it is provided with the sintering zone respectively positioned at the globar heater II of the upper and lower both sides of the roller-way.
Further, the end of the charging roller is provided with for detecting material whether sensor I in place, the elevator Frame be provided with for measure respectively and it is spacing it is described lifted bin upper-lower position touch sensor I and touch sensor II, institute State and aid in roller-way to be provided with the touch sensor III for being positioned at material on the feeding chain, be arranged at the charging aperture Roller-way be provided with for the postive stop baffle of the spacing material position.
Further, the chain type feed mechanism includes aiding in roller-way and the roller-way at the kiln charging aperture of upper strata with described respectively The sprocket wheel being correspondingly arranged, is provided with feeding chain between the sprocket wheel.
Further, the feeding chain is set at least two for being parallel to each other.
Further, the lift carriage is provided with the sleeve for being enclosed within the lifting chain.
The beneficial effects of the present invention is:
The superposing type double-layer electric heating roller way kiln of the present invention, by the way that kiln body is set to into upper strata kiln body and lower floor's kiln body, and sets Feeding mechanism and material transporting mechanism are put, thus, material can be entered in kiln body from the charging aperture being arranged in the kiln body of upper strata, Jing burns From the discharge hole for discharge being arranged in lower floor's kiln body after knot, i.e., an entirety is formed between upper strata kiln body and lower floor's kiln body, it is identical The area that the kiln body of length takes is less;The automatic transhipment of material is realized by arranging automatic feed/discharge blood circulation, with certainly The high advantage of dynamicization degree;By arranging auto temperature controlled system, and limit waste heat preheating section, prebake section, drying section, intensification The length ratio of section, sintering zone and cooling area, and then the temperature curve in kiln body can be easily controlled, sintering can be effectively improved Effect, delivers to waste heat preheating section and waste heat prebake section, it is possible to increase utilization results of energy in combination with air exhauster by waste heat, drop Low energy consumption.
Jing tests find, when the superposing type double-layer electric heating roller way kiln of the present invention is used for sintered permanent ferrite, obtain Following technique effect:
1st, energy-conservation:The specific energy consumption of sintered permanent ferrite is less than 0.55kW h/kg, reduces about than conventional monolayers roller furnace 25%, significantly reduce energy consumption, saves energy;
2. production capacity:Drastically increase production yields, the permanent-magnet ferrite production yields of current single device exceeded 18 tons/ My god, improve about 1 times than conventional monolayers roller furnace;
3. floor space is little:Do not increase floor space while yield and reducing energy consumption is greatly increased, saved Factory Building and built It is set as this.
Description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carries out Explanation:
Fig. 1 is the structural representation of superposing type double-layer electric heating roller way kiln embodiment of the present invention;
Fig. 2 is the A detail drawings of Fig. 1;
Fig. 3 is the B detail drawings of Fig. 1;
Fig. 4 is the structural representation of feeding mechanism;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the left view of Fig. 4;
Fig. 7 is the structural representation of material transporting mechanism;
Fig. 8 is the structural representation of transfer carriage and transhipment bin;
Fig. 9 is the left view of Fig. 8;
Figure 10 is the present embodiment for temperature profile during sintered permanent ferrite.
Specific embodiment
Below in conjunction with the accompanying drawings the invention will be further described with specific embodiment, so that those skilled in the art can be with It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As shown in figure 1, for the structural representation of superposing type double-layer electric heating roller way kiln embodiment of the present invention.The present embodiment Superposing type double-layer electric heating roller way kiln, including kiln body and automatic feed/discharge blood circulation.
The kiln body of the present embodiment includes lower floor's kiln body 2 and is arranged on the upper strata kiln body 1 of the top of lower floor's kiln body 2, upper strata kiln body 1 Front end be provided with charging aperture 3, the front end of lower floor's kiln body 2 is provided with discharging opening 4, the rear end of upper strata kiln body 1 and the rear end of lower floor's kiln body 2 Alignment.The automatic feed/discharge blood circulation of the present embodiment includes being correspondingly arranged at feeding mechanism and discharging opening 4 pairs with charging aperture 3 The discharging mechanism that should arrange and being arranged between the rear end of upper strata kiln body 1 and the rear end of lower floor's kiln body 2 is used for the thing in upper strata kiln body 1 Material is transported to the material transporting mechanism in lower floor's kiln body 2.Use is respectively equipped with the upper strata kiln body 1 and lower floor's kiln body 2 of the present embodiment In the roller-way 5 for driving material to advance.
Along the direction of advance of material, waste heat preheating section 6, prebake section 7, drying section 8, warming-up section are sequentially provided with kiln body 9th, sintering zone 10 and cooling area 11, wherein, waste heat preheating section 6 and prebake section 7 are arranged in upper strata kiln body 1, drying section 8, liter Temperature section 9, sintering zone 10 and cooling area 11 are arranged in lower floor's kiln body 2.Prebake section 7 includes the waste heat near waste heat preheating section 6 Prebake section 7a and heating prebake section 7b away from waste heat preheating section 6.Air exhauster 12 is provided with cooling area 11, air exhauster 12 Air outlet is connected respectively with waste heat preheating section 6 and waste heat prebake section 7a.
The length ratio of waste heat preheating section 6, prebake section 7, drying section 8, warming-up section 9, sintering zone 10 and cooling area 11 is 7.5:22.5:6:10:8:Length ratio between 21, and waste heat prebake section 7a and heating prebake section 7b is 12.5:10.This The overall length of the kiln of embodiment is set to 75 meters, waste heat preheating section 6, prebake section 7, drying section 8, warming-up section 9, the and of sintering zone 10 The length of cooling area 11 is respectively 7.5 meters, 22.5 meters, 6 meters, 10 meters, 8 meters, 21 meters, and waste heat prebake section 7a and heating preliminary drying The length of dry section 7b is respectively 12.5 meters and 10 meters.
The superposing type double-layer electric heating roller way kiln of the present embodiment also includes auto temperature controlled system, auto temperature controlled system control Temperature curve in kiln body is:
Temperature in upper strata kiln body 1 gradually increases along material direction of advance, and the temperature curve in upper strata kiln body 1 is:
y=T1x/30a+T0
Wherein, a is the element length of kiln body, i.e. waste heat preheating section, prebake section, drying section, warming-up section, sintering zone and cooling area Length be respectively 7.5a, 22.5a, 6a, 10a, 8a, 21a, the a=1 rice of the present embodiment;
T1For the maximum temperature of the rear end of upper strata kiln 1, when the superposing type double-layer electric heating roller way kiln of the present embodiment is used to sinter During permanent-magnet ferrite, T1=400℃;T0For room temperature.
Temperature curve in drying section 8 and warming-up section 9 is:
y=(T2-T1)(x-30a)/16a+T1
Wherein, T2For sintering temperature, when the superposing type double-layer electric heating roller way kiln of the present embodiment is used for sintered permanent ferrite When, T2=1200-1260℃;
Temperature curve in sintering zone 10 is:y=T2
Temperature curve in cooling area 11 is:y=(T3-T2)(x-54a)/21a+T2
Wherein, T3For the drop temperature of setting, the drop temperature of the present embodiment is set as room temperature.
Further, the Resistant heating device I 13 positioned at the lower section of roller-way 5 is provided with waste heat prebake section 7a, and waste heat is pre- The top of drying section 7a is connected with the air outlet of air exhauster 12.It is provided with heating prebake section 7b of the present embodiment and is located at respectively The Resistant heating device II 14 of roller-way both sides about 5.It is provided with the drying section 8 of the present embodiment respectively positioned at roller-way two about 5 The Resistant heating device III 15 of side.The warming-up section 9 of the present embodiment includes Resistant heating section 9a and globar bringing-up section 9b, electricity Resistance silk bringing-up section 9a is arranged near drying section 8, and is provided with Resistant heating section 9a respectively positioned at the resistance of roller-way both sides about 5 Silk heater IV 16, is provided with respectively positioned at the globar heater I 17 of roller-way both sides about 5 in globar bringing-up section 9b. Length ratio between Resistant heating section 9a and globar bringing-up section 9b of the present embodiment is 4:6, i.e. Resistant heating section 9a 4 meters and 6 meters are respectively with the length of globar bringing-up section 9b.It is provided with the sintering zone 10 of the present embodiment and be located at respectively on roller-way 5 Heater is not provided with the globar heater II of lower both sides, waste heat preheating section 6 and cooling area 11, by preheating in waste heat Section 6, prebake section 7, drying section 8, warming-up section 9, sintering zone 10 and cooling area 11 are respectively provided with the heating of variety classes and quantity Device, in conjunction with auto temperature controlled system the effective control to the warm area curve in kiln is capable of achieving, and controls the speed of roller-way 5, i.e., Can ensure that material is preheated, dries, sintered and cooled down according to the time range of the temperature curve of setting and setting, it is ensured that material Sintering process according to setting process route carry out.
Further, the feeding mechanism of the present embodiment include charging roller 19, for material lifting to be located to upper strata kiln body 1 The hoisting mechanism of height and position and the feeding roller-way for material to be delivered to charging aperture.Hoisting mechanism includes the He of lift carriage 20 Bin 21 is lifted, the top of lift carriage 20 is provided with the lifting horizontal stroke that lifting motor 22 and rotatable engagement are arranged in lift carriage 20 Beam 23, is provided with for driving the worm and gear for lifting the rotation of crossbeam 23 to subtract between the output shaft and lifting crossbeam 23 of lifting motor 22 Fast device I 24, lift crossbeam 23 is respectively arranged at two ends with top sprocket wheel 25, a pair of bottom and the top sprocket wheel 25 1 of lift carriage 20 Bottom sprocket wheel should be provided with, lifting chain 26 is provided between corresponding top sprocket wheel 25 and bottom sprocket wheel, two lifting chains 26 respectively with Lift bin 21 to be fixedly connected.The lifting bin of the present embodiment includes splicing roller-way 27, and the lower section of splicing roller-way 27 is provided with installation Frame 28, installing rack 28 is provided with the splicing motor 29 for driving splicing roller-way 27 to rotate.The feeding roller-way of the present embodiment includes Dock with splicing roller-way 27 and the auxiliary roller-way 30 parallel with the roller-way 5 being arranged in upper strata kiln body 1, aid in roller-way 30 and arrange Chain type feed mechanism is provided between roller-way 5 at charging aperture 3.The lift carriage 20 of the present embodiment is provided with described for being enclosed within Lift the sleeve 33 on chain 26.
The chain type feed mechanism of the present embodiment include respectively with auxiliary roller-way 30 and upper strata kiln charging aperture 3 at roller-way 5 The sprocket wheel 31 being correspondingly arranged, is provided with feeding chain 32 between the sprocket wheel 31, feeding chain 32 is set at least two for being parallel to each other, The feeding chain 32 of the present embodiment is set to two for being parallel to each other.The charging roller 19 of the present embodiment, auxiliary roller-way 30 and chain type Feed mechanism is equipped with power set, is not repeated.
The end of the charging roller 19 of the present embodiment is provided with for detecting material whether sensor I in place, lift carriage 20 be provided with for measure respectively and it is spacing lifted the upper-lower position of bin 21 touch sensor I and touch sensor II, auxiliary Roller-way 30 is provided with the touch sensor III for being positioned at material on feeding chain, is arranged on the roller-way 5 at charging aperture 3 and sets Have for the postive stop baffle of limited object discharge position.Thus, the material on charging roller 19 can be fed to charging aperture 3 automatically Place, realizes automatic charging.
Further, the material transporting mechanism of the present embodiment includes closed heat insulation and lid is mounted in upper strata kiln body 1 and lower floor's kiln body 2 Transfer carriage 35 and transhipment bin 36 are provided with the transport box 34 of rear end, transport box 34, the top of transfer carriage 35 is provided with transhipment motor 37 and rotatable engagement be arranged on transfer carriage 35 on transhipment crossbeam 38, transport motor 37 output shaft and transhipment crossbeam 38 between set Have a worm type of reduction gearing II 39, and transport crossbeam 38 be respectively arranged at two ends with top transhipment sprocket wheel 40, on transfer carriage 35 with it is upper Portion's transhipment sprocket wheel 40 is corresponded and is provided with bottom transhipment sprocket wheel, is set between corresponding top transhipment sprocket wheel 40 and bottom transhipment sprocket wheel There is transport chain 41, two transport chains 41 are fixedly connected respectively with transhipment bin 36.The transfer carriage 35 of the present embodiment be provided with for The sleeve 42 being enclosed within the transport chain 41.The transhipment bin 36 of the present embodiment includes transhipment roller-way 43, sets on transhipment roller-way 43 There is transhipment roller, the roller-way 5 being arranged in lower floor's kiln body 2 is stretched in transport box 34, and transport transhipment roller and the position of roller-way 43 It is crisscross arranged between the conveying roller of the roller-way in transport box 34, thus, i.e. using the dynamic of the roller-way in transport box 34 Power is delivered to material in lower floor's kiln body 2.
Heat insulation layer 44 is provided with the transport box 34 of the present embodiment, and transport box 34 is provided with maintenance door 45.This enforcement The touch sensor VI and sensing contact of measurement and spacing transhipment bin upper-lower position are respectively provided with the transfer carriage 35 of example Device V, transhipment bin 36 is provided with positioned at transhipment roller-way top and for detecting material whether sensor II in place.
The material transporting mechanism of the present embodiment can also be realized using other similar means, is not repeated.
The superposing type double-layer electric heating roller way kiln of the present embodiment, by the way that kiln body is set to into upper strata kiln body and lower floor's kiln Body, and feeding mechanism and material transporting mechanism are set, thus, material can enter kiln body from the charging aperture being arranged in the kiln body of upper strata It is interior, it is sintered after between the discharge hole for discharge being arranged in lower floor's kiln body, i.e. upper strata kiln body and lower floor's kiln body formed one it is whole Body, the area that the kiln body of equal length takes is less;The automatic transhipment of material is realized by arranging automatic feed/discharge blood circulation, There is high degree of automation;By arrange auto temperature controlled system, and limit waste heat preheating section, prebake section, drying section, The length ratio of warming-up section, sintering zone and cooling area, and then the temperature curve in kiln body can be easily controlled, can effectively improve Sintering effect, waste heat preheating section and waste heat prebake section are delivered in combination with air exhauster by waste heat, it is possible to increase utilization of energy is imitated Really, reducing energy consumption.
Jing tests find, when the superposing type double-layer electric heating roller way kiln of the present embodiment is used for sintered permanent ferrite, take Obtained following technique effect:
1st, energy-conservation:The specific energy consumption of sintered permanent ferrite is less than 0.55kW h/kg, reduces about than conventional monolayers roller furnace 25%, significantly reduce energy consumption, saves energy;
2. production capacity:Drastically increase production yields, the permanent-magnet ferrite production yields of current single device exceeded 18 tons/ My god, improve about 1 times than conventional monolayers roller furnace;
3. floor space is little:Do not increase floor space while yield and reducing energy consumption is greatly increased, saved Factory Building and built It is set as this.
Embodiment described above is only the preferred embodiment lifted to absolutely prove the present invention, the protection model of the present invention Enclose not limited to this.Equivalent substitute or conversion that those skilled in the art are made on the basis of the present invention, in the present invention Protection domain within.Protection scope of the present invention is defined by claims.

Claims (10)

1. a kind of superposing type double-layer electric heating roller way kiln, it is characterised in that:Including kiln body and automatic feed/discharge blood circulation;
The kiln body includes lower floor's kiln body and the upper strata kiln body being arranged on above lower floor's kiln body, the front end of the upper strata kiln body Charging aperture is provided with, the front end of lower floor's kiln body is provided with discharging opening, after the rear end of the upper strata kiln body and lower floor's kiln body End alignment, the automatic feed/discharge blood circulation includes being correspondingly arranged at feeding mechanism and the discharging opening with the charging aperture The discharging mechanism that is correspondingly arranged and being arranged between the upper strata kiln body rear end and lower floor's kiln body rear end is used for the upper strata kiln Material transporting mechanism in internal material transfer to lower floor's kiln body;It is respectively equipped with the upper strata kiln body and lower floor's kiln body For the roller-way for driving material to advance;
Along the direction of advance of the material, waste heat preheating section, prebake section, drying section, intensification are sequentially provided with the kiln body Section, sintering zone and cooling area, wherein, the waste heat preheating section and prebake section are arranged in the upper strata kiln body, the drying Section, warming-up section, sintering zone and cooling area are arranged in lower floor's kiln body;The prebake section is included near waste heat preheating The waste heat prebake section and the heating prebake section away from the waste heat preheating section of section;Air exhauster, institute are provided with the cooling area The air outlet for stating air exhauster is connected respectively with the waste heat preheating section and waste heat prebake section;
The length ratio of the waste heat preheating section, prebake section, drying section, warming-up section, sintering zone and cooling area is 7.5:22.5: 6:10:8:Length ratio between 21, and the waste heat prebake section and the heating prebake section is 12.5:10;
The feeding mechanism includes charging roller, for by the elevator of material lifting to the upper strata kiln body place height and position Structure and the feeding roller-way for material to be delivered to the charging aperture;The hoisting mechanism includes lift carriage and lifting bin, The lifting crossbeam that lifting motor and rotatable engagement are arranged in the lift carriage is provided with the top of the lift carriage, it is described to carry The worm type of reduction gearing for driving the lifting crossbeam to rotate is provided between the output shaft of lifting motor and the lifting crossbeam I, the crossbeam that lifted is respectively arranged at two ends with top sprocket wheel, and the bottom of the lift carriage corresponds with the top sprocket wheel Be provided with bottom sprocket wheel, be provided with lifting chain between the corresponding top sprocket wheel and bottom sprocket wheel, two described lifted chain respectively with The lifting bin is fixedly connected;
The lifting bin includes splicing roller-way, and installing rack is provided with below the splicing roller-way, and the installing rack is provided with use In the splicing motor for driving the splicing roller bed rotation;The feeding roller-way include being docked with the splicing roller-way and be arranged on The parallel auxiliary roller-way of roller-way in the upper strata kiln body, the auxiliary roller-way and the roller-way being arranged at the charging aperture Between be provided with chain type feed mechanism;
Also include auto temperature controlled system, the temperature curve that the auto temperature controlled system is controlled in the kiln body is:
Temperature in the upper strata kiln body gradually increases along the material direction of advance, and the temperature in the upper strata kiln body Line of writing music is:
y=T1x/30a+T0
Wherein, a for kiln body element length, i.e., described waste heat preheating section, prebake section, drying section, warming-up section, sintering zone and drop The length of warm area is respectively 7.5a, 22.5a, 6a, 10a, 8a, 21a;
T1For the maximum temperature of upper strata kiln rear end;T0For room temperature;
Temperature curve in the drying section and warming-up section is:
y=(T2-T1)(x-30a)/16a+T1
Wherein, T2For sintering temperature;
Temperature curve in the sintering zone is:y=T2
Temperature curve in the cooling area is:y=(T3-T2)(x-54a)/21a+T2
Wherein, T3For the drop temperature of setting.
2. superposing type double-layer electric heating roller way kiln according to claim 1, it is characterised in that:The waste heat prebake section The Resistant heating device I being inside provided with below roller-way, and the top of the waste heat prebake section and the air exhauster go out Air port is connected.
3. superposing type double-layer electric heating roller way kiln according to claim 2, it is characterised in that:The heating prebake section Inside it is provided with respectively positioned at the Resistant heating device II of the upper and lower both sides of the roller-way.
4. superposing type double-layer electric heating roller way kiln according to claim 3, it is characterised in that:It is provided with the drying section Respectively positioned at the Resistant heating device III of the upper and lower both sides of the roller-way.
5. superposing type double-layer electric heating roller way kiln according to claim 4, it is characterised in that:The warming-up section includes electricity Resistance silk bringing-up section and globar bringing-up section, the Resistant heating section is arranged near the drying section, and the Resistant heating It is provided with section respectively positioned at the Resistant heating device IV of the upper and lower both sides of the roller-way, in the globar bringing-up section difference is provided with Positioned at the globar heater I of the upper and lower both sides of the roller-way;Between the Resistant heating section and the globar bringing-up section Length ratio be 4:6.
6. superposing type double-layer electric heating roller way kiln according to claim 5, it is characterised in that:It is provided with the sintering zone Respectively positioned at the globar heater II of the upper and lower both sides of the roller-way.
7. superposing type double-layer electric heating roller way kiln according to claim 1, it is characterised in that:The end of the charging roller End is provided with for detecting material whether sensor I in place, and the lift carriage is provided with for measuring respectively and spacing described The touch sensor I and touch sensor II of bin upper-lower position are lifted, the auxiliary roller-way is provided with for material to be positioned Touch sensor III on the feeding chain, is arranged on the roller-way at the charging aperture and is provided with for the spacing material level The postive stop baffle put.
8. superposing type double-layer electric heating roller way kiln according to claim 7, it is characterised in that:The chain type feed mechanism Including the sprocket wheel being correspondingly arranged with the auxiliary roller-way and the roller-way at the kiln charging aperture of upper strata respectively, it is provided between the sprocket wheel Feeding chain.
9. superposing type double-layer electric heating roller way kiln according to claim 8, it is characterised in that:The feeding chain is set to At least two for being parallel to each other.
10. superposing type double-layer electric heating roller way kiln according to claim 1, it is characterised in that:In the lift carriage It is provided with the sleeve for being enclosed within the lifting chain.
CN201611256983.0A 2016-12-30 2016-12-30 Superposing type double-layer electric heating roller way kiln Active CN106595298B (en)

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Publication number Priority date Publication date Assignee Title
CN107144126A (en) * 2017-06-26 2017-09-08 湖北华夏窑炉工业(集团)有限公司 Wet pressing ferrite magnetic material dry heat system
CN107342444A (en) * 2017-06-19 2017-11-10 荆门市格林美新材料有限公司 A kind of anode material of lithium battery extended baking process and device
CN109037593A (en) * 2018-06-20 2018-12-18 无锡百擎智能机器人科技有限公司 A kind of lithium battery material automated production line control system

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CN104880062A (en) * 2015-05-25 2015-09-02 绥阳县华夏陶瓷有限责任公司 Double-layer roller-way kiln provided with lifting device
CN105423749A (en) * 2015-12-04 2016-03-23 中国电子科技集团公司第四十八研究所 Energy-saving type split double-layer roller way electrical kiln for permanent magnetic ferrite sintering
KR20160081304A (en) * 2014-12-31 2016-07-08 주식회사 한화 duplex heat treatment furnace

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2885881Y (en) * 2006-04-10 2007-04-04 范本良 Full-electric roller hearth-type continuous annealing furnace
KR20160081304A (en) * 2014-12-31 2016-07-08 주식회사 한화 duplex heat treatment furnace
CN104880062A (en) * 2015-05-25 2015-09-02 绥阳县华夏陶瓷有限责任公司 Double-layer roller-way kiln provided with lifting device
CN105423749A (en) * 2015-12-04 2016-03-23 中国电子科技集团公司第四十八研究所 Energy-saving type split double-layer roller way electrical kiln for permanent magnetic ferrite sintering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107342444A (en) * 2017-06-19 2017-11-10 荆门市格林美新材料有限公司 A kind of anode material of lithium battery extended baking process and device
CN107144126A (en) * 2017-06-26 2017-09-08 湖北华夏窑炉工业(集团)有限公司 Wet pressing ferrite magnetic material dry heat system
CN109037593A (en) * 2018-06-20 2018-12-18 无锡百擎智能机器人科技有限公司 A kind of lithium battery material automated production line control system

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