阅读说明：本技术 具有余热利用功能的磁钢窑炉 (Magnetic steel kiln with waste heat utilization function ) 是由 姜顺荣 于 2020-12-30 设计创作，主要内容包括：本发明公开了一种具有余热利用功能的磁钢窑炉,窑炉内具有磁钢传送通道和穿过传送通道的料轨,在传送通道的传送沿线上依次具有低温区、中温区、高温区和冷却区,其特征是：还包括有回温通道组件,所述回温通道组件的进口与冷却区连通,出口与低温区连通。本发明能够对窑炉内从胚料上产生的热量进行重复利用,既降低了窑炉整体的能耗,又提升了胚料冷却的效果。(The invention discloses a magnetic steel kiln with a waste heat utilization function, which is internally provided with a magnetic steel conveying channel and a material rail penetrating through the conveying channel, wherein a low-temperature area, a medium-temperature area, a high-temperature area and a cooling area are sequentially arranged on a conveying edge of the conveying channel, and the magnetic steel kiln is characterized in that: the cooling system is characterized by further comprising a temperature return channel assembly, wherein an inlet of the temperature return channel assembly is communicated with the cooling area, and an outlet of the temperature return channel assembly is communicated with the low-temperature area. The invention can recycle the heat generated from the blank in the kiln, thereby reducing the overall energy consumption of the kiln and improving the blank cooling effect.)

1. The utility model provides a magnet steel kiln with waste heat utilization function, has magnet steel conveying passageway and passes conveying passageway's material rail in the kiln, has low temperature district, medium temperature district, high temperature district and cooling space on conveying channel's conveying edge line in proper order, characterized by: the cooling system is characterized by further comprising a temperature return channel assembly, wherein an inlet of the temperature return channel assembly is communicated with the cooling area, and an outlet of the temperature return channel assembly is communicated with the low-temperature area.

2. The alnico kiln with the waste heat utilization function as claimed in claim 1, wherein: the temperature return channel component comprises a fan and a channel positioned in the kiln, an air cylinder of the fan is assembled in the channel and drives air in the channel to flow, and a motor of the fan is positioned outside the kiln and is connected with an impeller in the air cylinder through a connecting belt.

3. The alnico kiln with the waste heat utilization function as claimed in claim 2, wherein: and a heat-insulating layer is arranged on the inner top wall of the channel.

4. The alnico kiln with the waste heat utilization function as claimed in claim 2, wherein: the channel is opened in the top wall of the kiln.

5. The alnico kiln with the waste heat utilization function as claimed in claim 2, wherein: the inlet and the outlet of the channel are respectively provided with a plurality of channels and are respectively and evenly distributed on the inner top wall of the cooling area and the inner top wall of the low-temperature area.

6. The alnico kiln with the waste heat utilization function as claimed in claim 1, wherein: the conveying channel is divided into a first conveying channel and a second conveying channel, the first conveying channel and the second conveying channel are arranged in parallel, the conveying directions are opposite, a high-temperature area of the first conveying channel is adjacent to a low-temperature area of the second conveying channel, and a low-temperature area driven by the first conveying channel is adjacent to the high-temperature area of the second conveying channel.

Technical Field

The invention relates to the technical field of heating kilns, in particular to a magnetic steel kiln with a waste heat utilization function.

Background

The magnetic steel needs to be sintered in the production process, and a kiln is adopted for sintering the magnetic steel. The structure of the kiln in the prior art comprises a sintering area, a cooling area and a conveying channel. The conveying channel passes through the sintering area and the cooling area in sequence, so that the blank is finally conveyed out through the sintering area and the cooling area in the sintering process. The sintering area is provided with a plurality of temperature areas, generally comprising a low-temperature area, a medium-temperature area, a high-temperature area, a heat preservation area and the like, so that the gradual heating effect of the blank is realized. And the blank of the magnetic steel after being sintered in the sintering area is sent to a cooling area, so that the blank is naturally cooled, and the blank is sent out from an outlet of the kiln after being cooled.

When the blank is naturally cooled in the cooling area in the process, most of heat emitted by the blank can be remained in the cooling area, so that the temperature of the cooling area per se can be very high, the cooling time of the blank can be very long, the efficiency of magnetic steel sintering is reduced, the heat on the blank per se can be wasted, and the energy consumption is increased.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the magnetic steel kiln with the waste heat utilization function, which can be used for repeatedly utilizing the heat generated from the blank in the kiln, thereby reducing the overall energy consumption of the kiln and improving the cooling effect of the blank.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a magnet steel kiln with waste heat utilization function, has magnet steel conveying passageway and passes conveying passageway's material rail in the kiln, has low temperature district, medium temperature district, high temperature district and cooling space on conveying channel's conveying edge line in proper order, characterized by: the cooling system is characterized by further comprising a temperature return channel assembly, wherein an inlet of the temperature return channel assembly is communicated with the cooling area, and an outlet of the temperature return channel assembly is communicated with the low-temperature area.

Preferably, the temperature return channel assembly comprises a fan and a channel located inside the kiln, an air duct of the fan is assembled in the channel and drives air in the channel to flow, and a motor of the fan is located outside the kiln and connected with an impeller in the air duct through a connecting belt.

Preferably, an insulating layer is arranged on the inner top wall of the channel.

Preferably, the channel opens in the top wall of the kiln.

Preferably, the inlet and the outlet of the channel are provided in plurality and are respectively and uniformly distributed on the inner top wall of the cooling zone and the inner top wall of the low temperature zone.

Preferably, the conveying channel has two conveying channels, and is divided into a first conveying channel and a second conveying channel, the first conveying channel and the second conveying channel are arranged in parallel and have opposite conveying directions, the high-temperature area of the first conveying channel is adjacent to the low-temperature area of the second conveying channel, and the low-temperature area driven by the first conveying channel is adjacent to the high-temperature area of the second conveying channel.

The invention has the advantages that: the heat generated by the magnetic steel in the cooling area can flow back to the low-temperature area to be reused in the low-temperature area, and the cooling of the magnetic steel can be accelerated in the process, and the filling amount of the dye in the low-temperature area can be reduced to reduce energy consumption.

Drawings

Fig. 1 is a cross-sectional view of a magnetic steel kiln with a waste heat utilization function provided in this embodiment;

fig. 2 is a schematic view of a first conveying channel and a second conveying channel in the kiln provided by the embodiment.

Detailed Description

The magnetic steel kiln with the waste heat utilization function of the invention is further explained by combining with the figures 1 to 2.

A magnetic steel kiln with a waste heat utilization function is characterized in that a magnetic steel 6 conveying channel 4 and a material rail 3 penetrating through the conveying channel 4 along the conveying direction of the conveying channel 4 are arranged in the kiln 1, a low-temperature area 41, a medium-temperature area 42, a high-temperature area 43 and a cooling area 44 are sequentially arranged on the conveying line of the conveying channel 4, and when the magnetic steel 6 sequentially passes through the four areas, preparation in the kiln 1 is completed, and the next procedure can be carried out. In this embodiment, the kiln 1 further includes a temperature returning channel assembly 2, an inlet 211 of the temperature returning channel assembly 2 is communicated with the cooling area 44, and an outlet 212 is communicated with the low temperature area 41. When the cooling device is used specifically, heat generated by the magnetic steel 6 in the cooling process of the cooling area 44 is pumped to the low-temperature area 41 by the temperature returning channel assembly 2 to be reused in the low-temperature area 41, and meanwhile, the temperature of the cooling area 44 can be reduced to accelerate cooling of the magnetic steel 6, and the filling amount of fuel in the low-temperature area 41 can be reduced to reduce energy consumption.

On the side wall or the bottom wall of the furnace 1, there are fuel pipes 5 leading to a low temperature zone 41, a medium temperature zone 42 and a high temperature zone 43, and the fuel used in this embodiment is fuel gas.

Specifically, the temperature return channel assembly 2 comprises a fan 22 and a channel 21 arranged inside the kiln 1, an air duct 222 of the fan 22 is assembled in the channel, an impeller is arranged in the air duct and drives air in the channel 21 to flow, and a motor 221 of the fan 22 is located outside the kiln 1 and connected with the impeller through a high-temperature resistant connecting belt. After the motor 221 is arranged outside the kiln 1, the motor 221 can be prevented from being influenced by high-temperature air flow inside the channel, and the normal service life of the motor is shortened.

An insulating layer 11 is arranged on the inner top wall of the channel, and the insulating layer 11 can reduce the heat of the heat flow in the channel and emit the heat to the outside of the kiln 1. It should be noted that, an insulating layer 11 is disposed in each side wall of the kiln 1 to insulate the inside of the kiln.

Said channel 21 opens in the top wall of the kiln 1. The arrangement can reduce the space occupation of the kiln 1 on the horizontal plane.

The inlet 211 and the outlet 212 of the passage are each provided in plural and are uniformly distributed on the inner ceiling wall of the cooling zone 44 and the inner ceiling wall of the low temperature zone 41, respectively. This setting can increase import 211 and export 212 at the covering surface of cooling zone 44 and low temperature zone 41, promotes the homogeneity of admitting air and giving vent to anger to play better cooling effect to cooling zone 44, play better heating effect to low temperature zone 41.

The conveying passage 4 has two in the kiln and is divided into a first conveying passage 410 and a second conveying passage 420, the first conveying passage 410 and the second conveying passage 420 are arranged side by side and are opposite in conveying direction, a high temperature zone 43 of the first conveying passage 410 is adjacent to a low temperature zone 41 of the second conveying passage 420, and the low temperature zone 41 of the first conveying passage 410 is adjacent to the high temperature zone 43 of the second conveying passage 420. With this structure, part of the heat of the high temperature zone 43 of the first transfer passage is transferred to the low temperature zone 41 of the second transfer passage 420, and the heat of the high temperature zone 43 of the second transfer passage 420 is transferred to the low temperature zone 41 of the first transfer passage 410, thereby further realizing the reuse of the preheating.

Specifically, the first transfer passage 410 and the second transfer passage 420 have a thermal insulation wall 12 therebetween. The temperature influence between the two conveying channels 4 can be reduced as much as possible through the heat insulation wall, but the heat insulation wall cannot achieve complete heat insulation, so that the heat of the high-temperature region 43 can be transferred into the adjacent low-temperature region 41, the filling amount of the dye in the low-temperature region 41 can be further reduced, otherwise, the heat transferred from the high-temperature region 43 is lost in the inner wall of the kiln 1, and it should be noted that the two conveying channels are both provided with a temperature return channel assembly. After long-term use, one fourth of gas quantity can be saved compared with the prior art when ten thousand pieces of magnetic steel 6 are sintered.

As another embodiment of this embodiment, the conveying channel 4 has a plurality of at least two conveying channels arranged in sequence, the conveying direction between every two adjacent conveying channels is opposite, and the high temperature zone 43 and the low temperature zone 41 between every two adjacent conveying channels are adjacent, so as to achieve the effect of reusing the residual heat of the high temperature zone 43.

Unless otherwise specified, in the present invention, if there is an orientation or positional relationship indicated by terms of "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, rather than to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, the terms describing orientation or positional relationship in the present invention are for illustrative purposes only, and should not be construed as limiting the present patent, specific meanings of the above terms can be understood by those of ordinary skill in the art in light of the specific circumstances in conjunction with the accompanying drawings.

Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass, for example, being fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.