CN212713615U - High-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection tank device - Google Patents
High-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection tank device Download PDFInfo
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- CN212713615U CN212713615U CN202021376888.6U CN202021376888U CN212713615U CN 212713615 U CN212713615 U CN 212713615U CN 202021376888 U CN202021376888 U CN 202021376888U CN 212713615 U CN212713615 U CN 212713615U
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Abstract
A high-temperature-resistant, wear-resistant, impact-resistant and heat-insulating hot ore injection tank comprises a tank body (1), a heat-insulating layer (2) and a shell (3) from inside to outside; a feed inlet (8), a material level port (9) and a pressure equalizing port (10) are formed in the top surface of the hot ore injection tank; the feed inlet (8) is a channel for hot ore to enter; the material level port (9) is used for installing a material level meter so as to measure the heat ore storage in the tank body; the pressure equalizing port (10) is used for pressurizing or decompressing the hot ore in the tank body so as to ensure the pressure in the tank body; the bottom surface of the hot ore injection tank is provided with a feed opening (5), and the feed opening (5) is a hot ore discharge channel. The temperature of the outer surface of the device is close to the ambient temperature, and the heat preservation effect is obvious. The device has long service life, is free from maintenance during use, and has comprehensive cost far lower than that of the traditional blowing tank.
Description
Technical Field
Embodiments of the present disclosure relate generally to the technical field of ironmaking equipment, and more particularly, to a high temperature resistant, wear resistant, impact resistant, and thermal insulating hot-ore injection device.
Background
Smelting reduction iron making is the leading technology of the current steel industry. In order to promote the reduction reaction to proceed smoothly, make up for the insufficient heat in the reduction process, and increase the temperature of molten iron, measures are often taken to dry, preheat or pre-reduce iron ore powder to a certain temperature in advance to form hot ores, and then blow the hot ores into the molten metal in the smelting reduction furnace. Therefore, a hot ore bin, an intermediate tank, an injection tank and an injection pipeline of the hot ore injection system are required to be subjected to heat preservation treatment, so that the temperature of the hot ore is reduced as little as possible in the transportation and injection processes.
The injection tank is a key device of a hot ore injection system. The traditional heat preservation mode of the blowing tank is internal heat preservation, namely, anchoring nails are welded on the inner wall of the tank body and the tank opening, and a heat preservation layer with the thickness of about 300mm and working layer refractory materials are built on the anchoring nails. The blowing tank is similar to a closed container except for an opening, and a large number of anchoring nails are welded on the inner wall of the shell, so that building of refractory on the inner wall of the tank body is extremely difficult. In addition, moisture contained in the built refractory materials can be used after being dried, and multiple times of minor repair, intermediate repair and even major repair are needed in the use process of the blowing tank, so that the common internal heat insulation mode has the defects of high building working strength of workers, poor environment, low production operation rate and short service life of the tank body, and generally does not exceed 2 years.
SUMMERY OF THE UTILITY MODEL
According to the embodiment of the disclosure, a high-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection device is provided.
A high-temperature-resistant, wear-resistant, impact-resistant and heat-insulating hot ore injection tank comprises a tank body (1), a heat-insulating layer (2) and a shell (3) from inside to outside;
a feed inlet (8), a material level port (9) and a pressure equalizing port (10) are formed in the top surface of the hot ore injection tank;
the feed inlet (8) is a channel for hot ore to enter;
the material level port (9) is used for installing a material level meter so as to measure the heat ore storage in the tank body;
the pressure equalizing port is used for pressurizing or decompressing the hot ore in the tank body so as to ensure the pressure in the tank body;
the bottom surface of the hot ore injection tank is provided with a feed opening (5), and the feed opening (5) is a hot ore discharge channel.
Furthermore, still be provided with temperature transmitter mouth (6) and pressure transmitter mouth (7) on the top surface of hot ore jetting jar, temperature transmitter mouth (6) are used for installing temperature transmitter, in order to measure hot ore temperature in the jar body, pressure transmitter mouth (7) are used for installing pressure transmitter, in order to measure jar internal pressure.
Furthermore, a fluidizing port (4) is formed in the side surface of the hot ore injection tank, and the fluidizing port (4) is used for filling nitrogen to fluidize the hot ore.
Further, the tank body (1) is made of high-chromium cast iron and has the thickness of 12-20 mm.
Furthermore, the heat-insulating layer (2) is asbestos cloth with the thickness of 60-120 mm.
Furthermore, the shell (3) is made of strip steel, and the thickness of the strip steel is 0.2-2 mm.
Furthermore, the lower part of the tank body (1) is a cone or a semi-cone.
The utility model discloses an advantage and effect:
the blowing tank body is made of heat-resistant, wear-resistant and impact-resistant cast iron, is insulated outside the tank body, is different from the internal insulation mode of the existing hot ore blowing tank body, does not need to weld anchoring nails on the inner wall of the tank body and build casting materials with the thickness of about 300mm, saves extremely heavy building work of workers, does not need minor repair, intermediate repair and major repair work of the traditional blowing tank body, improves the production operation rate, really achieves the purpose of being free of maintenance after equipment is put into use, and has the service life not less than 5 years.
The temperature of the outer surface of the device is close to the ambient temperature, and the heat preservation effect is obvious.
It should be understood that what is described in this disclosure section is not intended to limit key or critical features of the embodiments of the disclosure, nor is it intended to limit the scope of the disclosure. Other features of the present disclosure will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent with reference to the following detailed description when taken in conjunction with the accompanying fig. 1. In fig. 1, the same or similar reference numerals denote the same or similar elements.
1. A tank body; 2. a heat-insulating layer; 3. a housing; 4. a fluidization port; 5. a feeding port; 6. a temperature transmitter port; 7. a pressure transmitter port; 8. a feed inlet; 9. a material level port; 10. and a pressure equalizing port.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The technical solution of the present invention will be further explained and illustrated with reference to the following specific embodiments.
The heat retaining hot ore injection jar device that shocks resistance that this discloses high temperature resistant wear-resisting includes: a tank body, a heat preservation layer and a shell. The heat-insulating layer is asbestos cloth, the shell is made of iron sheet, the tank body is made of heat-resistant, wear-resistant and impact-resistant cast iron, and hot ores with the temperature not higher than 1000 ℃ are loaded in the tank body; the tank body is provided with a top surface, a bottom surface and a side surface; the top surface is provided with a feed inlet, a pressure equalizing port, a temperature transmitter port, a material level port and a pressure transmitter port; a feed opening is formed in the bottom surface; a fluidization port is formed in the side surface; the asbestos cloth is wrapped on the outer wall of the tank body; the iron sheet wraps the asbestos cloth outside the whole device.
The volume of the tank body is determined according to daily pig iron production, for example, the volume of the tank body is 20-40m when the daily pig iron production is 2000-3And can accommodate about 38-76 tons of hot ore.
The upper part of the tank body is in the shape of a cylinder, and in order to enable hot ores in the tank body to flow easily, the lower part of the tank body is in the shape of a cone or a semi-cone.
The heat-resistant, wear-resistant and impact-resistant cast iron is one of heat-resistant chromium cast iron, high-silicon heat-resistant cast iron, high-aluminum cast iron and the like, the thickness of the heat-resistant cast iron is 12-20mm, the heat-resistant temperature is 600-1100 ℃, and one of the heat-resistant cast irons is selected according to the required hot ore temperature.
The feed inlet is a channel for hot ore to enter.
The pressure equalizing port is used for pressurizing or decompressing the hot ore in the tank body so as to ensure the pressure in the tank body.
The temperature transmitter port is used for installing a temperature transmitter so as to measure the temperature of the hot ore in the tank body.
The material level port is used for mounting a material level meter so as to measure the heat ore storage in the tank body;
the pressure transmitter port is used for installing a pressure transmitter so as to measure the internal pressure of the tank body.
The feed opening is a passage for hot ore to enter next equipment from the device.
The fluidizing port is used for filling nitrogen to fluidize the hot ore.
The asbestos cloth is 60-120mm in thickness and used for heat insulation.
The thickness of the iron sheet is 0.2-2mm, and Q195 or Q215 strip steel is selected as a material, so that the pollution of the exposed outside of the asbestos cloth to the environment is avoided.
Example 1
A high temperature resistant, wear resistant, impact resistant and heat insulating hot ore injection tank is shown in figure 1, wherein the volume of the tank body (1) is 20m3The lower part shape is the cone, and wherein hot ore deposit temperature is about 500 ℃, the material of the jar body (1) is high chromium cast iron, and thickness is 16mm, and heat-resisting temperature is 1000 ℃, heat preservation (2) are the asbestos cloth, and thickness is 80mm, and the parcel is in the outer wall of the jar body (1), shell (3) are Q195 belted steel, and thickness 0.6mm, the parcel is in asbestos cloth (2) surface avoids the pollution of asbestos cloth to the environment.
When the pressure-equalizing tank is used, hot ores in the tank body (1) can enter and exit the tank body through the feed inlet (8) or the feed outlet (5) by adjusting the pressure of the pressure-equalizing port (10), the level meter on the level port (9) displays the level of the hot ores in the tank body (1), if the hot ores in the tank body (1) are full or insufficient, an alarm is given to prompt an operator to suspend feeding or supplement the hot ores, the temperature transmitter on the temperature transmitter port (6) continuously measures the temperature of the hot ores, if the temperature of the hot ores in the tank body (1) exceeds 600 ℃ or is lower than 400 ℃, the alarm is given to prompt the operator to reduce or improve the temperature of the hot ores, and the pressure transmitter on the pressure transmitter port (7) displays the pressure in the tank body (1) so that the operator can adjust the required pressure as required.
In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (7)
1. A high-temperature-resistant, wear-resistant, impact-resistant and heat-insulating hot ore injection tank is characterized in that the hot ore injection tank consists of a tank body (1), a heat-insulating layer (2) and a shell (3) from inside to outside;
a feed inlet (8), a material level port (9) and a pressure equalizing port (10) are formed in the top surface of the hot ore injection tank;
the feed inlet (8) is a channel for hot ore to enter;
the material level port (9) is used for installing a material level meter so as to measure the heat ore storage in the tank body;
the pressure equalizing port is used for pressurizing or decompressing the hot ore in the tank body so as to ensure the pressure in the tank body;
the bottom surface of the hot ore injection tank is provided with a feed opening (5), and the feed opening (5) is a hot ore discharge channel.
2. The hot-ore blowing tank as claimed in claim 1, wherein a temperature transmitter port (6) and a pressure transmitter port (7) are further provided on the top surface of the hot-ore blowing tank, the temperature transmitter port (6) being used for mounting a temperature transmitter for measuring the temperature of the hot ore in the tank body, and the pressure transmitter port (7) being used for mounting a pressure transmitter for measuring the pressure inside the tank body.
3. The hot ore injection pot according to claim 2, wherein a fluidizing port (4) is formed in a side surface of the hot ore injection pot, and the fluidizing port (4) is used for charging nitrogen to fluidize the hot ore.
4. A hot-ore blowing tank according to claim 3, characterized in that the tank body (1) is of high chromium cast iron and has a thickness of 12-20 mm.
5. The hot ore blowing tank according to claim 4, wherein the heat insulating layer (2) is asbestos cloth having a thickness of 60 to 120 mm.
6. The hot-ore blowing tank as claimed in claim 5, characterized in that the outer shell (3) is a strip steel with a thickness of 0.2-2 mm.
7. The hot-ore blowing tank as claimed in claim 6, wherein the lower part of the tank body (1) is a cone or a semi-cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376888.6U CN212713615U (en) | 2020-07-14 | 2020-07-14 | High-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection tank device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021376888.6U CN212713615U (en) | 2020-07-14 | 2020-07-14 | High-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection tank device |
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| Publication Number | Publication Date |
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| CN212713615U true CN212713615U (en) | 2021-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021376888.6U Active CN212713615U (en) | 2020-07-14 | 2020-07-14 | High-temperature-resistant, wear-resistant, impact-resistant and heat-preserving hot ore injection tank device |
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| CN (1) | CN212713615U (en) |
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