阅读说明：本技术 一种改善干熄炉下料均匀性的风帽结构 (Improve hood structure of putting out stove unloading homogeneity futilely ) 是由 耿宁 张天宇 李雨佳 于 2020-12-28 设计创作，主要内容包括：本发明涉及一种改善干熄炉下料均匀性的风帽结构,风帽由帽头及帽檐组成,其中帽头由升降帽头和帽头升降驱动装置组成,在帽头升降驱动装置的带动下帽头能够竖直升降；帽檐由沿周向排列的多个扇形帽檐、帽檐支撑柱及帽檐旋转驱动装置组成；每个扇形帽檐的内端与对应帽檐支撑柱的顶部铰接,扇形帽檐的中部与对应帽檐旋转驱动装置的一端铰接,帽檐旋转驱动装置的另一端与位于十字风道顶部的中心平台固定连接。本发明通过改变帽头的竖直位置和帽檐的摆动角度,改变焦炭下移通道的截面积,进而改善干熄炉内焦炭料流偏析的情况,使炉内同一平面的料层均匀同步下移,保证底部排焦口正常连续排焦。(The invention relates to a blast cap structure for improving the blanking uniformity of a dry quenching furnace, wherein the blast cap consists of a cap head and a cap peak, the cap head consists of a lifting cap head and a cap head lifting driving device, and the cap head can vertically lift under the driving of the cap head lifting driving device; the cap brim is composed of a plurality of fan-shaped cap brims arranged along the circumferential direction, a cap brim supporting column and a cap brim rotation driving device; the inner end of each fan-shaped brim is hinged with the top of the corresponding brim support column, the middle part of each fan-shaped brim is hinged with one end of the corresponding brim rotation driving device, and the other end of each brim rotation driving device is fixedly connected with a central platform positioned at the top of the cross air duct. According to the invention, the vertical position of the cap head and the swing angle of the cap peak are changed to change the sectional area of the coke downward-moving channel, so that the condition of material flow segregation of coke in the dry quenching furnace is improved, the material layers on the same plane in the furnace uniformly and synchronously move downward, and the normal and continuous coke discharging of the coke discharging port at the bottom is ensured.)

1. A blast cap structure for improving the blanking uniformity of a dry quenching furnace comprises a blast cap arranged in a conical hopper at the bottom of the dry quenching furnace, wherein the blast cap consists of an upper-layer cap head and a lower-layer cap brim, and the bottom of the blast cap is provided with an air inlet connected with a cross air duct; the hat is characterized in that the hat head and the hat brim are of a split structure, wherein the hat head consists of a lifting hat head and a hat head lifting driving device, and the hat head can be vertically lifted under the driving of the hat head lifting driving device; the hat brim is composed of a plurality of fan-shaped hat brim columns, hat brim supporting columns and a hat brim rotation driving device which are arranged along the circumferential direction; the inner end of each fan-shaped brim is hinged with the top of the corresponding brim support column, the middle part of each fan-shaped brim is hinged with one end of the corresponding brim rotation driving device, and the other end of each brim rotation driving device is fixedly connected with a central platform positioned at the top of the cross air duct.

2. The blast cap structure for improving the blanking uniformity of the dry quenching furnace according to claim 1, wherein the cap head lifting driving device is composed of at least 2 vertically arranged high-temperature resistant electric push rods, the bodies of the high-temperature resistant electric push rods are fixedly connected with the central platform, and the push rods of the high-temperature resistant electric push rods are fixedly connected with the middle part of the lifting cap head; the cable connected with the high-temperature-resistant electric push rod penetrates through the cross air duct and then is connected with an external power supply, and the cable is externally provided with a heat insulation protective sleeve.

3. The blast cap structure for improving the blanking uniformity of the dry quenching furnace as claimed in claim 2, wherein the high temperature resistant electric push rod in the cap head lifting driving device is synchronously controlled.

4. The blast cap structure for improving the blanking uniformity of a dry quenching furnace according to claim 1, wherein the cap peak rotation driving device is a high-temperature resistant electric push rod, a cable connected with the high-temperature resistant electric push rod passes through a cross air duct and then is connected with an external power supply, and a heat insulation protective sleeve is arranged outside the cable.

5. The blast cap structure for improving the blanking uniformity of the dry quenching furnace as claimed in claim 1 or 4, wherein the cap peak rotation driving device is independently controlled.

6. The blast cap structure for improving the blanking uniformity of the dry quenching furnace as claimed in claim 1, wherein the fan-shaped caps are arranged closely along the circumferential direction or are arranged at intervals along the circumferential direction.

Technical Field

The invention relates to the technical field of dry quenching furnaces, in particular to a hood structure for improving the blanking uniformity of a dry quenching furnace.

Background

The coke dry quenching refers to a coke quenching method for cooling red coke by adopting inert gas. In the process of dry quenching, red coke is loaded from the top of the dry quenching furnace, and low-temperature inert gas is introduced from a cross air duct at the lower part of a cooling chamber of the dry quenching furnace and is blown into the red coke through an air cap.

During normal production, coke is cooled by inert gas and then is continuously discharged from a coke discharge port at the bottom. When the dry quenching furnace is put into production and produced again, because coke is not discharged in a period of time before, the coke in the dry quenching furnace is in static stress balance, and when the continuous coke discharging is started, the static balance in the dry quenching furnace is difficult to break, so that the phenomena of static accumulation of the coke, material flow segregation and the like and uneven blanking can occur. In addition, in the normal production process, the phenomenon of uneven blanking such as material flow segregation and the like can also occur during the blanking of coke in the dry quenching furnace. If the stress state in the dry quenching furnace is not changed, the coke in the dry quenching furnace is difficult to ensure normal and uniform blanking of the same horizontal material layer, the cooling state of the coke in the furnace and the movement path of inert gas can be changed, the situation is more and more serious after vicious circle, and even vicious production accidents such as red coke discharge, boiler tube explosion and the like can occur.

Therefore, a novel structural device or a novel structural method is urgently needed, when the problems of non-uniformity or blockage and the like of blanking of the dry quenching furnace occur, the condition of material flow segregation of coke in the furnace is improved in a mode of changing an internal stress state, a material layer on the same plane in the dry quenching furnace is uniformly and synchronously moved downwards, and the bottom of the dry quenching furnace is normally and continuously discharged with coke.

Disclosure of Invention

The invention provides a blast cap structure for improving the blanking uniformity of a dry quenching furnace, which changes the sectional area of a coke downward-moving channel by changing the vertical position of a cap head and the swing angle of a cap peak, further improves the condition of material flow segregation of coke in the dry quenching furnace, enables material layers on the same plane in the furnace to uniformly and synchronously move downward, and ensures the normal and continuous coke discharging of a bottom coke discharging port.

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

a blast cap structure for improving the blanking uniformity of a dry quenching furnace comprises a blast cap arranged in a conical hopper at the bottom of the dry quenching furnace, wherein the blast cap consists of an upper-layer cap head and a lower-layer cap brim, and the bottom of the blast cap is provided with an air inlet connected with a cross air duct; the cap head and the cap brim are of a split structure, wherein the cap head consists of a lifting cap head and a cap head lifting driving device, and the cap head can be vertically lifted under the driving of the cap head lifting driving device; the hat brim is composed of a plurality of fan-shaped hat brim columns, hat brim supporting columns and a hat brim rotation driving device which are arranged along the circumferential direction; the inner end of each fan-shaped brim is hinged with the top of the corresponding brim support column, the middle part of each fan-shaped brim is hinged with one end of the corresponding brim rotation driving device, and the other end of each brim rotation driving device is fixedly connected with a central platform positioned at the top of the cross air duct.

The cap head lifting driving device consists of at least 2 vertically arranged high-temperature resistant electric push rods, a body of each high-temperature resistant electric push rod is fixedly connected with the central platform, and a push rod of each high-temperature resistant electric push rod is fixedly connected with the middle part of the lifting cap head; the cable connected with the high-temperature-resistant electric push rod penetrates through the cross air duct and then is connected with an external power supply, and the cable is externally provided with a heat insulation protective sleeve.

And the high-temperature resistant electric push rod in the cap head lifting driving device is synchronously controlled.

The cap brim rotation driving device is a high-temperature-resistant electric push rod, a cable connected with the high-temperature-resistant electric push rod penetrates through the cross air duct and then is connected with an external power supply, and a heat-insulating protective sleeve is arranged outside the cable.

The brim rotation driving device is independently controlled.

The fan-shaped brim is closely arranged along the circumferential direction or arranged at intervals along the circumferential direction.

Compared with the prior art, the invention has the beneficial effects that:

1) the sectional area of a coke downward moving channel is changed by changing the vertical position of the cap head and the swing angle of the cap peak, so that the condition of material flow segregation of coke in the dry quenching furnace is improved, material layers on the same plane in the furnace uniformly and synchronously move downward, and the normal and continuous coke discharging of a bottom coke discharging port is ensured;

2) through changing the sectional area of the coke moving-down channel, the coke blanking uniformity in the coke dry quenching furnace can be effectively adjusted, the full heat exchange between inert gas and coke is facilitated, the temperature control of continuous coke discharge is facilitated, and the stability of the overall temperature and pressure of a coke dry quenching system is facilitated.

Drawings

FIG. 1 is a schematic diagram of the blast cap structure for improving the blanking uniformity of the dry quenching furnace.

Fig. 2 is a top view of fig. 1.

In the figure: 1. cooling zone 2, upper cone hopper 3, lower cone hopper 4, cross air duct 5, coke discharging port 6, lifting cap head 7, fan-shaped cap peak 8, cap head lifting driving device 9, cap peak supporting column 10, cap peak rotating driving device 11, coke

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings:

as shown in fig. 1 and 2, the blast cap structure for improving the blanking uniformity of the dry quenching furnace comprises a blast cap arranged in a conical hopper at the bottom of the dry quenching furnace, wherein the blast cap consists of an upper-layer cap head and a lower-layer cap brim, and an air inlet is formed in the bottom of the blast cap and is connected with a cross air duct 4; the cap head and the cap brim are of a split structure, wherein the cap head consists of a lifting cap head 6 and a cap head lifting driving device 8, and the cap head 6 can vertically lift under the driving of the cap head lifting driving device 8; the hat brim is composed of a plurality of fan-shaped hat brim 7 arranged along the circumferential direction, a hat brim support column 9 and a hat brim rotation driving device 10; the inner end of each fan-shaped brim 7 is hinged with the top of the corresponding brim support column 9, the middle part of each fan-shaped brim 7 is hinged with one end of the corresponding brim rotation driving device 10, and the other end of each brim rotation driving device 10 is fixedly connected with the central platform positioned at the top of the cross air duct 4.

The cap head lifting driving device 8 consists of at least 2 vertically arranged high-temperature resistant electric push rods, the bodies of the high-temperature resistant electric push rods are fixedly connected with the central platform, and the push rods of the high-temperature resistant electric push rods are fixedly connected with the middle part of the lifting cap head 6; and the cable connected with the high-temperature-resistant electric push rod penetrates through the cross air duct 4 and then is connected with an external power supply, and the cable is externally provided with a heat-insulating protective sleeve.

And a high-temperature resistant electric push rod in the cap head lifting driving device 8 is synchronously controlled.

The cap brim rotation driving device 10 is a high-temperature-resistant electric push rod, a cable connected with the high-temperature-resistant electric push rod penetrates through the cross air duct 4 and then is connected with an external power supply, and a heat insulation protective sleeve is arranged outside the cable.

The visor rotation drive means 10 are independently controlled.

The fan-shaped visor 7 is arranged closely along the circumferential direction or arranged at intervals along the circumferential direction.

The working principle of the blast cap structure for improving the blanking uniformity of the dry quenching furnace is as follows: coke in the dry quenching furnace flows from top to bottom, and when the coke passes through the cooling area 1, low-temperature inert gas introduced by the cross air duct 4 arranged between the upper cone hopper 3 and the lower cone hopper 4 enters the coke through the 2 layers of annular air inlets formed by the cap head and the cap peak to exchange heat with the coke. The coke after heat exchange is continuously discharged from a coke discharge port 5 at the bottom. In the process, if partial regional material flow segregation occurs, the sectional area of a coke blanking channel can be changed by adjusting the height of the lifting cap head 6 and changing the rotating angle of the fan-shaped cap peak 7 at the corresponding part, so that the material flow segregation condition is improved, and the uniformity of coke blanking is ensured.

According to the blast cap structure for improving the blanking uniformity of the dry quenching furnace, the cap head lifting driving device 8 and the cap brim rotating driving device 10 are arranged in the low-temperature inert gas flow channel, and a high-temperature-resistant electric push rod is adopted, so that the normal work of the blast cap structure can be ensured, and the blast cap structure has a certain service life.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.