CN212482082U - Ferrite core sintering rapid glue discharging furnace - Google Patents
Ferrite core sintering rapid glue discharging furnace Download PDFInfo
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- CN212482082U CN212482082U CN202021160556.4U CN202021160556U CN212482082U CN 212482082 U CN212482082 U CN 212482082U CN 202021160556 U CN202021160556 U CN 202021160556U CN 212482082 U CN212482082 U CN 212482082U
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Abstract
The utility model discloses a ferrite core sintering furnace of gluing fast belongs to ferrite production technical field. It includes: the bracket is used for supporting the whole glue discharging furnace; the top of the furnace body is provided with a first through hole and a second through hole which are arranged on the bracket, a hot air sleeve and an air outlet partition plate are arranged in the furnace body, air outlet notches are formed in the air outlet partition plate and are tightly attached to the hot air sleeve, and a circulating fan is arranged on one side of the furnace body and is opposite to the air outlet notches; the combustion heater is arranged above the furnace body, is provided with a hot gas outlet which is communicated with the first through hole and is used for conveying hot gas into the furnace body under the control of an adjusting valve; the waste gas inlet is connected and communicated with the second through hole and is in a normally open state; and the furnace carriage is arranged in the furnace body and used for placing the ferrite magnetic core. The environment-friendly waste gas is subjected to high temperature to fully decompose the adhesive, so that the adhesive is decomposed into carbon dioxide and water, and the pollution influence on the environment is reduced to the minimum and energy is saved.
Description
Technical Field
The utility model belongs to the technical field of the ferrite production, more specifically say, relate to a quick binder removal stove of ferrite core sintering.
Background
Magnetic core refers to a sintered magnetic metal oxide composed of various iron oxide mixtures. For example, manganese-zinc ferrite and nickel-zinc ferrite are typical magnetic core materials. The manganese-zinc ferrite has the characteristics of high magnetic permeability and high magnetic flux density, and has the characteristic of lower loss when the frequency is lower than 1 MHz. Ferrite cores are used in coils and transformers for various electronic devices.
In the production process of the soft magnetic ferrite core, in order to facilitate the preparation of magnetic core blanks with various shapes, a certain amount of organic binder is required to be added in the preparation process of the granules. In the process of sintering the magnetic core, the adhesive needs to be heated and volatilized first, for example, chinese patent application 201620669601.6 discloses a shuttle-type gas glue discharging furnace for sintering ferrite magnetic materials, which comprises a glue discharging furnace body, guide rails, a furnace carriage, a glue discharging furnace door, two groups of top air outlet pipelines arranged in parallel, a group of gas burners, a group of circulating fans, a group of thermometers and a group of adjusting insertion plates; the glue discharging furnace doors are arranged at the left side and the right side of the glue discharging furnace body, and the guide rails penetrate through the glue discharging furnace body from left to right; the furnace car is arranged on the guide rail and slides left and right on the guide rail; the ejection gas pipeline is arranged at the top of the glue discharging furnace body; the group of circulating fans are arranged between the two groups of ejection air pipelines which are arranged in parallel; and the front wall and the rear wall of the glue discharging furnace body are respectively provided with a gas burner, a thermometer and an adjusting inserting plate. For another example, chinese patent application 201910822618.9 discloses a full-automatic intelligent bell jar furnace, which is characterized in that a plurality of groups of heating groups, preferably 29-46 groups of heating groups, 70-110 silicon carbide rods are arranged, the height in the furnace chamber of the main furnace body is 1.5-2.2m, a negative pressure sintering forced air extractor is adopted to extract air through an induced draft fan, so that a predetermined value of negative pressure is formed in the furnace chamber, and water vapor, glue and impurities removed in the ferrite sintering temperature rise process can be discharged out of the furnace body in time. For another example, chinese patent application 201220586315.5 discloses a tunnel type magnetic core sintering furnace, which includes a tunnel type sintering furnace, wherein the front end of the tunnel of the sintering furnace is a feeding port, and the tail end is a discharging port, the sintering furnace is sequentially provided with a preheating zone, a glue discharging zone, a low temperature zone, a high temperature zone and a heat dissipating zone from front to back, and a second discharging port communicated with the tunnel of the sintering furnace is further provided between the high temperature zone and the heat dissipating zone. Chinese patent application CN201520042971.2 discloses a magnetic material firing bell jar furnace with an optimized circulation system, which mainly comprises a furnace body, wherein the bottom of the furnace body is provided with a lifting system, a firing bearing plate is arranged below the furnace body, and the lifting system controls the firing bearing plate; the cooling circulation system A comprises a circulating fan A, and the circulating fan A is connected with the hearth through a ventilation pipe; the left side and the right side of the furnace body are respectively provided with an air box, and the ventilation pipe is connected with the hearth through the air boxes; two sides in the hearth are respectively provided with more than three groups of air outlet devices, each air outlet device comprises an air outlet pipe, a cavity and a circulating air hole, the air outlet pipes are connected with the air box, and the circulating air holes are connected with the inside of the hearth.
However, when the adhesive is volatilized, if the adhesive cannot be fully decomposed, the adhesive can be partially condensed again to form harmful aerosol, so that the environment is polluted; in the volatilization process, the volatilization temperature points of the adhesive are concentrated, spontaneous combustion exothermic reaction can occur at about 190 ℃, the temperature is out of control, the uncontrolled temperature accelerates the discharge of the adhesive, and finally the volatilization of the adhesive is in the out-of-control state, so that the magnetic core blank with a longer diagonal section cracks due to the rapid rise of the temperature, and the product yield is reduced.
Disclosure of Invention
1. Problems to be solved
To the problem that current adhesive volatilizees and can not fully decompose and cause environmental pollution, the utility model provides a quick binder removal stove of ferrite core sintering, high temperature fully decomposes the adhesive, makes it decompose into carbon dioxide and water, and the pollution influence to the environment reduces to the minimum.
2. Technical scheme
In order to solve the above problem, the utility model discloses the technical scheme who adopts as follows:
the utility model discloses a quick glue discharging furnace of ferrite core sintering, include:
the bracket is used for supporting the whole glue discharging furnace;
the top of the furnace body is provided with a first through hole and a second through hole which are arranged on the bracket, a hot air sleeve and an air outlet partition plate are arranged in the furnace body, air outlet notches are formed in the air outlet partition plate and are tightly attached to the hot air sleeve, and a circulating fan is arranged on one side of the furnace body and is opposite to the air outlet notches;
the combustion heater is arranged above the furnace body, is provided with a hot gas outlet which is communicated with the first through hole and is used for conveying hot gas into the furnace body under the control of an adjusting valve; the waste gas inlet is connected and communicated with the second through hole and is in a normally open state;
and the furnace carriage is arranged in the furnace body and used for placing the ferrite magnetic core.
In a possible embodiment of the present invention, the furnace body is provided with a first thermocouple, and a head of the first thermocouple is disposed in the hot air jacket.
In a possible embodiment of the present invention, the furnace body is provided with cooling air holes and the hot air jacket is connected.
In one possible embodiment of the present invention, the combustion heater is heated by gas.
In a possible embodiment of the present invention, the furnace wall of the combustion heater is provided with at least two second thermocouples.
In a possible embodiment of the present invention, the first through hole is matched with a delivery pipe, and the lower end of the delivery pipe passes through the hot air sleeve and extends into the furnace body.
In one possible embodiment of the present invention, a discharge port is disposed above the combustion heater.
In a possible embodiment of the present invention, the lower port of the delivery pipe is located at an outlet of the circulating fan.
In a possible embodiment of the present invention, the present invention further comprises a controller electrically connected to the circulating fan, the combustion heater, the regulating valve, the first thermocouple, the second thermocouple, and the furnace carriage.
3. Advantageous effects
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses a ferrite core sintering is glued stove environmental protection waste gas fast and is fully decomposed the adhesive through high temperature, make it decompose into carbon dioxide and water, pollution influence to the environment reduces to minimum energy-conservation, hot air energy and the mixed air that comes unstuck set up the parameter according to the technology branch of academic or vocational study in advance through the automatic control proportional valve, can be less the energy consumption high efficiency, it is quick, it is general, the high-speed circulation amount of wind, a large amount of, the high-speed circulation amount of wind can make the blank be heated fast even, there is not the temperature error of position, can reach all blanks and volatilize the adhesive under the same temperature condition, come unstuck air and cooling air pipeline separately control, the fresh air mixing volume of section that can effectually control comes unstuck, reduce unnecessary heat consumption, whole work under; the speed of adhesive volatilization (different temperatures required for volatilization) can be adjusted in a large range by the automatic adjustment of the hot blast valve and the process air, the blank with clean adhesive volatilization can be rapidly cooled by an independent cooling air pipeline and a control system, the whole process is automatically controlled to be finished, the operation of a button for entering and exiting the furnace is simple and easy to use.
Drawings
FIG. 1 is a schematic structural view of a ferrite core sintering rapid glue discharging furnace of the present invention;
FIG. 2 is a front view of the ferrite core sintering rapid glue discharging furnace of the present invention;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;
fig. 5 shows the air flow direction inside the ferrite core sintering rapid glue discharging furnace of the present invention.
Description of reference numerals:
100. a support;
200. a furnace body; 210. a first through hole; 220. a second through hole; 230. a hot air jacket; 240. an air outlet clapboard, 241 and an air outlet notch; 250. a circulating fan; 260. a first thermocouple; 270. cooling air holes; 280. a delivery pipe;
300. a combustion heater; 310. a hot gas outlet; 320. adjusting a valve; 330. an exhaust gas inlet; 340. a second thermocouple; 350. a discharge port;
400. a furnace vehicle;
500. a ferrite core.
Detailed Description
Exemplary embodiments of the present invention are described in detail below. Although these exemplary embodiments are described in sufficient detail to enable those skilled in the art to practice the invention, it should be understood that other embodiments may be realized and that various changes to the invention may be made without departing from the spirit and scope of the present invention. The following more detailed description of the embodiments of the present invention is not intended to limit the scope of the invention, as claimed, but is presented for purposes of illustration only and not limitation to provide the best mode contemplated for carrying out the invention and to enable any person skilled in the art to practice the invention. Accordingly, the scope of the invention is to be limited only by the following claims.
The following detailed description and example embodiments of the invention are explained.
As shown in fig. 1 to 4, the ferrite core 500 sintering rapid binder removal furnace of the present embodiment includes a support 100, a furnace body 200, a combustion heater, a furnace carriage 400, and a controller (not shown).
In fig. 1, the whole glue discharging furnace is supported by the bracket 100, and the ferrite core 500 stacked on the furnace carriage 400 enters from the lower part of the furnace body 200. The height of the bracket 100 is generally set to about 1.5m, which facilitates the insertion and removal of the ferrite core 500.
The important part of the glue discharging furnace is the furnace body 200. Therefore, the furnace body 200 is arranged on the support 100, the top of the furnace body is provided with a first through hole 210 and a second through hole 220, the furnace body 200 is internally provided with a hot air jacket 230 and an air outlet partition plate 240, the first through hole 210 is matched with a delivery pipe 280, and the lower end of the delivery pipe 280 penetrates through the hot air jacket 230 and extends into the furnace body 200; the air outlet partition plates 240 are provided with air outlet notches 241 and are tightly attached to the hot air jacket 230, and one side of the furnace body 200 is provided with a circulating fan 250 opposite to the air outlet notches 241. The furnace body 200 is provided with a first thermocouple 260, and the head of the first thermocouple 260 is arranged in the hot air jacket 230.
Considering that the temperature of hot air in the combustion heater is up to 650 ℃ and the temperature in the furnace body 200 is controlled below 350 ℃, therefore, the hot air needs to be mixed with cold air, a cooling air hole 270 is formed on the furnace body 200, the cooling air hole 270 is disposed above the circulating fan 250, the cooling air hole 270 is connected with the hot air jacket 230, and the cooling air is mixed with the hot air in the furnace body 200 through the hot air jacket 230.
Further, the lower port of the delivery pipe 280 is located at the outlet position of the circulating fan 250,
the combustion heater of the embodiment is arranged above the furnace body 200, the burner tip of the combustion heater is positioned at one side, the combustion heater is provided with a hot gas outlet 310 which is communicated with the first through hole 210 and is controlled by a regulating valve 320 to convey hot gas into the furnace body 200; the waste gas inlet 330 is connected and communicated with the second through hole 220 and is in a normally open state; the combustion heater adopts gas heating.
Further, at least two second thermocouples 340 are arranged on the furnace wall of each combustion heater. A discharge port 350 is formed above the combustion heater, and the burned waste gas is discharged through the discharge port 350.
In fig. 4, a furnace carriage 400 is disposed within the furnace body 200 for placement of a ferrite core 500.
The first thermocouple 260 and the second thermocouple 340 may be high temperature thermocouples, which are available in many types on the market, such as a series a manufactured by the kyoho plutt technologies ltd.
It should be noted that: the binder begins to volatilize at the temperature of 120 ℃ and basically ends at the temperature of 320 ℃, a temperature point at which a mixture of the steam of the binder and air volatilized difficultly is self-combusted is arranged at the initial stage, a rapid self-heating phenomenon exists in a small temperature range at the temperature of 190 ℃, the temperature kinetic energy for volatilizing the binder is provided, and heat which is generated by the self-combustion of the binder in a furnace cavity and is more than the heat required by temperature rise is timely discharged, so that the volatilization speed of the binder is kept in a uniform speed state at a controllable temperature state.
As shown in fig. 5, the arrow indicates the moving direction of the air flow, the controller is electrically connected with the circulating fan, the combustion heater, the regulating valve, the first thermocouple, the second thermocouple and the furnace car, and the combustion heater and the waste gas incineration share one set of equipment, so that the complexity of the device is reduced; the temperature control of the external gas heater has higher response speed, and the heating rate is controlled by less normal-temperature air flow discharged waste heat when the adhesive spontaneously heats. The optimized hot air sleeve 230 (see the schematic diagram in detail) can reduce resistance and uniform hot air distribution, a horizontal circulating path can completely penetrate through the product stack, the opening of the hot air circulating fan 250 is far away from the side face of the product (the maximum size reaches 650mm), the air pressure difference of an air draft surface is reduced, circulating air flow can uniformly penetrate through the product stack, and the high-power hot air circulating fan 250 can accelerate the energy exchange of hot air and reduce the integral temperature error of the product stack. (Fan flow reaches 1 square meter 10000m3And/h, the circulating flow velocity is more than 10 m/s (the path occupied by products is removed), and the circulating hot air outlet is specially designed, so that the stability of the path of the air flow is ensured.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The utility model provides a ferrite core sintering arranges gluey stove fast which characterized in that includes:
the bracket (100) is used for supporting the whole glue discharging furnace;
the air-conditioning unit comprises a furnace body (200), wherein the top of the furnace body (200) is provided with a first through hole (210) and a second through hole (220) and is arranged on a support (100), a hot air sleeve (230) and an air outlet partition plate (240) are arranged in the furnace body (200), air outlet notches (241) are formed in the air outlet partition plate (240) and are tightly attached to the hot air sleeve (230), and a circulating fan (250) is arranged on one side of the furnace body (200) and is opposite to the air outlet notches (241);
the combustion heater (300) is arranged above the furnace body (200), a hot gas outlet (310) is formed in the combustion heater (300) and is communicated with the first through hole (210), and hot gas is conveyed into the furnace body (200) under the control of an adjusting valve (320); the waste gas inlet (330) is connected and communicated with the second through hole (220) and is in a normally open state;
the furnace carriage (400) is arranged in the furnace body (200) and is used for placing the ferrite magnetic core (500).
2. The ferrite core sintering rapid glue discharging furnace according to claim 1, wherein a first thermocouple (260) is arranged on the furnace body (200), and the head of the first thermocouple (260) is placed in the hot air jacket (230).
3. The ferrite core sintering rapid binder removal furnace as claimed in claim 2, wherein the furnace body (200) is provided with cooling air holes (270) to engage with the hot air jacket (230).
4. The ferrite core sintering rapid binder removal furnace as claimed in claim 3, wherein the combustion heater (300) is heated by gas.
5. The ferrite core sintering rapid binder removal furnace according to claim 4, wherein the furnace wall of the combustion heater (300) is provided with at least two second thermocouples (340).
6. The ferrite core sintering rapid glue discharging furnace as claimed in claim 5, wherein the first through hole (210) is fitted with a delivery pipe (280), and the lower end of the delivery pipe (280) extends into the furnace body (200) through a hot air jacket (230).
7. The ferrite core sintering rapid glue discharging furnace according to claim 6, characterized in that a discharge opening (350) is arranged above the combustion heater (300).
8. The ferrite core sintering rapid binder removal furnace as claimed in claim 6, wherein the lower port of the delivery pipe (280) is located at the outlet position of the circulating fan (250).
9. The ferrite core sintering rapid glue discharging furnace according to claim 6, further comprising a controller electrically connected to the circulating fan (250), the combustion heater (300), the regulating valve (320), the first thermocouple (260), the second thermocouple (340) and the furnace carriage (400).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021160556.4U CN212482082U (en) | 2020-06-19 | 2020-06-19 | Ferrite core sintering rapid glue discharging furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021160556.4U CN212482082U (en) | 2020-06-19 | 2020-06-19 | Ferrite core sintering rapid glue discharging furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212482082U true CN212482082U (en) | 2021-02-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021160556.4U Active CN212482082U (en) | 2020-06-19 | 2020-06-19 | Ferrite core sintering rapid glue discharging furnace |
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| Country | Link |
|---|---|
| CN (1) | CN212482082U (en) |
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2020
- 2020-06-19 CN CN202021160556.4U patent/CN212482082U/en active Active
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Address after: 243000 No.1, Cishan Road, Yushan Economic Development Zone, Yushan District, Ma'anshan, Anhui Province Patentee after: Ma'anshan Xinkangda Magnetic Industry Co.,Ltd. Address before: 243000 No.1, Cishan Road, Yushan Economic Development Zone, Yushan District, Ma'anshan, Anhui Province Patentee before: MAANSHAN NEW CONDA MAGNETIC INDUSTRIAL CO.,LTD. |