CN217110470U - Permanent magnetic ferrite rapid sintering electric kiln - Google Patents
Permanent magnetic ferrite rapid sintering electric kiln Download PDFInfo
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- CN217110470U CN217110470U CN202220862059.1U CN202220862059U CN217110470U CN 217110470 U CN217110470 U CN 217110470U CN 202220862059 U CN202220862059 U CN 202220862059U CN 217110470 U CN217110470 U CN 217110470U
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Abstract
A permanent magnetic ferrite rapid sintering electric kiln comprises an electric kiln body, wherein the electric kiln body is provided with a preheating section, a sintering section and a cooling section, the preheating section comprises a plurality of preheating temperature zones, each preheating temperature zone is internally provided with a temperature control point, and different temperature zones are provided with stepped temperature intervals; the sintering section comprises a plurality of heating temperature zones, the sintering section adopts the combination of an infrared heating tube and a silicon carbide rod as a heating system, and the heating system is controlled by a PLC system; the cooling section comprises a plurality of cooling temperature zones. The kiln body of the utility model has short length and can realize the rapid sintering of products with different specifications. The electric kiln has the advantages of small occupied area, short sintering period, convenience in assembly, high automation degree and the like.
Description
Technical Field
The utility model relates to an electric kiln especially relates to a permanent magnetic ferrite rapid sintering electric kiln.
Background
The permanent magnetic ferrite needs a high-temperature kiln to carry out long-time drying, sintering, cooling and other processes in the sintering link. Taking a current mainstream 48-meter sintering electric kiln as an example, the whole electric kiln is divided into 4 sections and 24 sections according to a sintering process, and 1-4 sections are a drying section; 5-9 sections are heating presintering sections; sections 10-16 are sintering sections; cooling sections 17-24. The whole process of the electric kiln is various, and each sintering section needs special monitoring, operation and feedback of personnel. The traditional electric kiln adopts a long-distance and slow-heating electric heating mode, so that the whole sintering period is prolonged, the average sintering period of the electric kiln is 13-17h, and the average sintering period accounts for 60% of the whole production period of the permanent magnetic ferrite. The traditional electric kiln only adopts an air cooling mode, and in order to ensure that the cooling effect is uniform, the cold section distance is lengthened, the electric kiln is generally longer than 45 meters, and the factory floor area cost is seriously increased.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the above-mentioned defects existing in the prior art and provide a
The utility model provides a technical scheme that its technical problem adopted is: a permanent magnetic ferrite rapid sintering electric kiln comprises an electric kiln body, wherein the electric kiln body is provided with a preheating section, a sintering section and a cooling section, the preheating section comprises a plurality of preheating temperature zones, each preheating temperature zone is internally provided with a temperature control point, and different temperature zones are provided with stepped temperature intervals (the temperature is increased according to gradient); the sintering section comprises a plurality of heating temperature zones, the sintering section adopts the combination of an infrared heating tube and a silicon carbide rod as a heating system, and the heating system is controlled by a PLC system; the cooling section comprises a plurality of cooling temperature zones.
Furthermore, each independent temperature zone is detachably connected to form a kiln body, so that the kiln body can be built and produced in advance in a manufacturer, and then the kiln body can be quickly spliced on site, and the construction period can be greatly shortened.
Furthermore, the kiln body of the firing section is composed of a high-temperature mullite adiabatic brick, a high-temperature resistant plate and a zirconium-containing roll blanket, and the kiln top is made of a high-temperature mullite arched adiabatic brick and a high-temperature refractory blanket.
Further, the number of the cooling temperatures is three, namely a first cooling temperature area, a second cooling temperature area and a third cooling temperature area, wherein a heat extraction fan is arranged in the first cooling temperature area, the second cooling temperature area is cooled by graphene, and the third cooling temperature area is cooled by a cooling water circulation system. By adopting three stages of different cooling modes, the rapid cooling of the temperature in a short time and a short distance can be ensured, and the uniform and stable heat dissipation of the product in the whole cooling process can be ensured.
Furthermore, the heating system also comprises an electric control instrument, a temperature detector and an overpressure and underpressure alarm.
The utility model discloses a kiln body length is short, can realize the quick sintering of different specification products. The electric kiln has the advantages of small occupied area, short sintering period, convenience in assembly, high automation degree and the like.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
In the figure: 1. the method comprises the following steps of a preheating section, 2, a sintering section, 3, a cooling section, 4, a preheating temperature zone, 5, a heating temperature zone, 6 and a cooling temperature zone.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the electric kiln body in this embodiment is divided into three sections, namely, a preheating section 1, a firing section 2, and a cooling section 3. The preheating section 1 is formed by splicing three detachable preheating temperature zones 4, each temperature zone is provided with a temperature control point, compared with the characteristic of long-distance slow heating of the traditional electric kiln, the three preheating sections of the rapid sintering electric kiln work independently, different temperature zones are provided with stepped temperature intervals, and the temperature in the kiln can be rapidly increased from normal temperature to 600 ℃ in a short distance and a short time.
The sintering section 2 is formed by splicing two detachable heating temperature zones 5, the heating temperature zones 5 adopt a heating mode of combining infrared heating tube heating and a silicon carbide rod, and auxiliary equipment such as an electric control instrument, a temperature detector, overpressure and underpressure alarm detection and the like is arranged to form a heating system, so that the temperature can be quickly raised to the highest sintering temperature in a short time. In order to keep the stability of the highest temperature, the kiln body of the firing section is made of a high-temperature mullite adiabatic brick, a high-temperature resistant plate and a zirconium-containing rolled blanket structure, and the kiln top is made of a high-temperature mullite arched adiabatic brick and a high-temperature refractory blanket structure. The heating system in the sintering section can accurately control the temperature of the kiln body, the temperature stability is controlled to be +/-2 ℃, and the maximum sintering temperature can reach 1260 ℃. The heating system is intelligently controlled based on the PLC, and can reduce energy consumption to the maximum extent while keeping the highest sintering temperature.
The cooling section 3 is formed by splicing three detachable cooling temperature zones 6. The first cooling temperature zone of the cooling section adopts a quick cooling heat extraction fan to carry out quick cooling in the first stage; the second cooling temperature zone adopts graphene for cooling, so that the adverse effect on the product caused by too fast cooling can be prevented while the cooling effect is ensured; the third temperature-reducing zone adopts a cooling water circulation system to carry out final-stage cooling, and after the three temperature-reducing zones are subjected to rapid temperature reduction, the temperature of the product can be rapidly reduced to within 70 ℃ from 1200 ℃ in a short time. By adopting three stages of different cooling modes, the rapid cooling of the temperature in a short time and a short distance can be ensured, and the uniform and stable heat dissipation of the product in the whole cooling process can be ensured.
The whole length of the rapid sintering electric kiln is only 22 meters, and the rapid sintering electric kiln has obvious advantages in the aspects of sintering period, occupied area, sintering power consumption, highest sintering temperature and the like.
Various modifications and variations of the present invention may be made by those skilled in the art, and they are within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (5)
1. The utility model provides a permanent magnetic ferrite rapid sintering electric kiln, includes the electric kiln body, its characterized in that: the electric kiln body is provided with a preheating section, a firing section and a cooling section, the preheating section comprises a plurality of preheating temperature zones, each preheating temperature zone is internally provided with a temperature control point, and different temperature zones are provided with stepped temperature intervals; the sintering section comprises a plurality of heating temperature zones, the sintering section adopts the combination of an infrared heating tube and a silicon carbide rod as a heating system, and the heating system is controlled by a PLC system; the cooling section comprises a plurality of cooling temperature zones.
2. The permanent magnetic ferrite rapid sintering electric kiln according to claim 1, characterized in that: each temperature zone is detachably connected.
3. The permanent magnetic ferrite rapid sintering electric kiln according to claim 1, characterized in that: the kiln body of the firing section consists of a high-temperature mullite adiabatic brick, a high-temperature resistant plate and a zirconium-containing roll blanket, and the kiln top is made of a high-temperature mullite arched adiabatic brick and a high-temperature refractory blanket.
4. The permanent magnetic ferrite rapid sintering electric kiln according to claim 1, characterized in that: the number of the cooling temperature areas is three, namely a first cooling temperature area, a second cooling temperature area and a third cooling temperature area, wherein a heat extraction fan is arranged in the first cooling temperature area, the second cooling temperature area is cooled by an interlayer, and the third cooling temperature area is cooled by a cooling water circulation system.
5. The permanent magnetic ferrite rapid sintering electric kiln according to claim 1, characterized in that: the heating system further comprises an electric control instrument, a temperature detector and an overpressure and underpressure alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862059.1U CN217110470U (en) | 2022-04-13 | 2022-04-13 | Permanent magnetic ferrite rapid sintering electric kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220862059.1U CN217110470U (en) | 2022-04-13 | 2022-04-13 | Permanent magnetic ferrite rapid sintering electric kiln |
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| Publication Number | Publication Date |
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| CN217110470U true CN217110470U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220862059.1U Active CN217110470U (en) | 2022-04-13 | 2022-04-13 | Permanent magnetic ferrite rapid sintering electric kiln |
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| CN (1) | CN217110470U (en) |
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2022
- 2022-04-13 CN CN202220862059.1U patent/CN217110470U/en active Active
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