CN207299914U - A kind of energy-saving zinc pot heating furnace - Google Patents

Abstract

The utility model relates to the mechanical field, and relates to a zinc pot heating furnace. An energy-saving zinc boiler heating furnace, comprising a heating furnace, the heating furnace includes a thermal insulation wall, the thermal insulation wall surrounds the outer side of a zinc boiler, the thermal insulation wall is provided with gas burners, there are four gas burners, two adjacent The intervals of the gas burners are the same; it also includes a wind-blocking wall, one end of the wind-blocking wall is connected to the thermal insulation wall, the other end of the wind-blocking wall is connected to the zinc pot, and one side of the thermal insulation wall is provided with a flue; the thermal insulation wall and the wind-blocking wall are both Made of ceramic fiber bricks. The utility model replaces the original refractory bricks with ceramic fiber bricks. The ceramic fiber bricks have good thermal insulation performance. When the gas burner emits high-temperature flue gas, the high-temperature flue gas rotates clockwise and circulates by using the wind-blocking wall and the heat-insulating wall. Improve the heat utilization rate, and use the characteristics of good heat insulation performance of ceramic fiber bricks to enhance the heat preservation effect. After heating, the temperature is relatively stable. In the actual production process, it can avoid the problem that the zinc temperature is difficult to control, thereby affecting the product quality.

Description

An energy-saving zinc pot heating furnace

technical field

The utility model relates to the mechanical field, in particular to a zinc pot heating furnace.

Background technique

In the production process of hot-dip galvanizing, a zinc pot heating furnace is usually used. The traditional zinc pot heating furnace adopts an old-fashioned refractory brick structure. This type of furnace requires a large investment, high energy consumption, and inconvenient maintenance. Manpower and production time, and in practical applications, temperature control is difficult, which has a certain impact on product quality. In the same industry of galvanizing, enterprises that use coal gas as raw material for heating generally use this kind of kiln, wasting a lot of resources.

Utility model content

The purpose of this utility model is to provide an energy-saving zinc pot heating furnace to solve at least one of the above technical problems.

In order to achieve the above object, the utility model adopts the following technical solutions:

An energy-saving zinc pot heating furnace, comprising a heating furnace, the heating furnace includes a thermal insulation wall, the thermal insulation wall surrounds the outer side of a zinc pot, the thermal insulation wall is provided with a gas burner, it is characterized in that the There are four gas burners, and the interval between two adjacent gas burners is the same;

It also includes a wind blocking wall, one end of the wind blocking wall is connected to the thermal insulation wall, the other end of the wind blocking wall is connected to the zinc pot, and one side of the thermal insulation wall is provided with a flue for air outlet ;

Both the thermal insulation wall and the wind blocking wall are piled up with ceramic fiber bricks made of ceramic fiber materials.

The utility model replaces the original refractory bricks by using ceramic fiber bricks. The ceramic fiber bricks have good thermal insulation performance. When the gas burner emits high-temperature flue gas, the high-temperature flue gas is rotated clockwise by using the wind-blocking wall and the heat-insulating wall. Improve the heat utilization rate, and use the characteristics of good heat insulation performance of ceramic fiber bricks to enhance the heat preservation effect. After heating, the temperature is relatively stable. In the actual production process, it can avoid the problem that the zinc temperature is difficult to control, thereby affecting the product quality.

At the same time, ceramic fiber bricks do not need to leave expansion joints during the construction process, which is convenient for construction; ceramic fiber bricks have excellent thermal shock and mechanical shock resistance, reducing potential safety hazards.

By replacing the original refractory bricks with ceramic fiber bricks, and using wind-blocking walls and insulation walls to make the high-temperature flue gas circulate clockwise, the original eight gas burners can be reduced to four, which not only meets the heating effect, but also facilitates Installation, replacement, maintenance.

A post for supporting the zinc pot is also provided between the zinc pot and the insulation wall, a bottom plate for reducing pressure is provided at both ends of the post, and a bottom plate at one end of the post is provided with a The contact surface of the zinc pot, the bottom plate at the other end of the column is provided with a contact surface with the thermal insulation wall;

Both the upper and lower parts of the upright column are provided with a square tube for supporting the upright column, and the upright column and the square tube form a "cross" shape. One end of the square tube supports the ground or the wall above, and the other end of the square tube supports the column. Compared with the traditional structure that only uses the column to support the zinc pot, the square tube limits the longitudinal displacement of the column and improves the support strength of the column.

The column adopts a stainless steel tube, and the outside of the column is wrapped with a ceramic fiber blanket. The stainless steel tube is not easy to corrode, and after being wrapped with a ceramic fiber blanket, the thermal insulation of the ceramic fiber reduces the loss of heat at the column.

Preferably, there are 28 columns. A better supporting effect has been achieved.

The bottom plate includes a double-layer structure formed by stacking two layers of plate-shaped bodies. The two layers of plate-shaped bodies include an inner layer plate and an outer layer plate. The plate-shaped body close to the column is used as the inner layer plate to keep away from the The plate-shaped body of the column is used as an outer layer plate, the inner layer plate is made of stainless steel plate, the outer layer plate is made of ceramic fiber board, and the area of the outer layer plate is not smaller than the area of the inner layer plate. The stainless steel plate has a certain hardness, which can reduce the pressure. The ceramic fiber board has excellent thermal shock resistance and mechanical shock resistance, and has a certain elasticity, which can further reduce the pressure and reduce the wear of the bottom plate on the insulation wall.

The inner layer plate is provided with a strip-shaped protrusion, and the outer layer plate is provided with a strip-shaped groove matching the strip-shaped protrusion, and the length of the strip-shaped protrusion and the strip-shaped groove is The direction is the same as the length direction of the square tube. Use the strip-shaped grooves matched with the strip-shaped protrusions to increase the friction between the inner plate and the outer plate and improve the structural strength. The length direction of the strip-shaped protrusions and strip-shaped grooves is the same as the length direction of the square tube. Shaped protrusions, strip-shaped grooves and square tube reinforcements limit the positional offset of the column in both the horizontal and vertical directions.

The strip-shaped protrusions are coated with a diamond coating, and the thickness of the diamond coating is between 80 μm and 100 μm. Increase the wear resistance of the strip-shaped protrusions, improve friction, and reduce damage, thereby increasing the service life of the bottom plate.

Description of drawings

Fig. 1 is a partial structural representation of the utility model;

Fig. 2 is a partial structural diagram of the column of the present invention.

Detailed ways

The specific embodiment of the utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 and 2, an energy-saving zinc pot heating furnace includes a heating furnace, and the heating furnace includes a thermal insulation wall 1, the thermal insulation wall surrounds a zinc pot 5 outside, and the thermal insulation wall is provided with a gas burner 3 , there are four gas burners, and the intervals between two adjacent gas burners are the same; a wind-blocking wall 2 is also included, one end of the wind-blocking wall is connected to the thermal insulation wall, the other end of the wind-blocking wall is connected to the zinc pot, and one end of the thermal insulation wall A flue 4 for air outlet is provided on the side; the thermal insulation wall and the wind blocking wall are all made of ceramic fiber bricks made of ceramic fiber materials. The utility model replaces the original refractory bricks with ceramic fiber bricks. The ceramic fiber bricks have good thermal insulation performance. When the gas burner emits high-temperature flue gas, the high-temperature flue gas rotates clockwise and circulates by using the wind-blocking wall and the heat-insulating wall. Improve the heat utilization rate, and use the characteristics of good heat insulation performance of ceramic fiber bricks to enhance the heat preservation effect. After heating, the temperature is relatively stable. In the actual production process, it can avoid the problem that the zinc temperature is difficult to control, thereby affecting the product quality. At the same time, ceramic fiber bricks do not need to leave expansion joints during the construction process, which is convenient for construction; ceramic fiber bricks have excellent thermal shock and mechanical shock resistance, reducing potential safety hazards. By replacing the original refractory bricks with ceramic fiber bricks, and using the wind-blocking wall and insulation wall to make the high-temperature flue gas circulate clockwise, the original eight gas burners can be reduced to four, which not only meets the heating effect, but also facilitates Installation, replacement, maintenance.

There is also a column 6 for supporting the zinc pot between the zinc pot and the insulation wall, and a bottom plate 7 for reducing the pressure is provided at both ends of the post. The bottom plate at one end of the post is provided with a contact surface that contacts the zinc pot. The bottom plate at the other end of the wall is provided with a contact surface in contact with the insulation wall; the upper and lower parts of the column are provided with a square tube 8 for supporting the column, and the column and the square tube form a "cross" shape. One end of the square tube supports the ground or the wall above, and the other end of the square tube supports the column. Compared with the traditional structure that only uses the column to support the zinc pot, the square tube limits the longitudinal displacement of the column and improves the support strength of the column.

The column is made of stainless steel tube, and the outside of the column is wrapped with a ceramic fiber blanket. The stainless steel tube is not easy to corrode, and after being wrapped with a ceramic fiber blanket, the thermal insulation of the ceramic fiber reduces the loss of heat at the column.

Preferably, there are 28 columns. A better supporting effect has been achieved. The outside of the square tube can also be wrapped with a ceramic fiber blanket.

The bottom plate includes a double-layer structure formed by stacking two layers of plate-shaped bodies. The two-layer plate-shaped bodies include an inner layer plate and an outer layer plate. The outer layer board, the inner layer board are made of stainless steel plate, the outer layer board is made of ceramic fiber board, and the area of the outer layer board is not less than the area of the inner layer board. The stainless steel plate has a certain hardness, which can reduce the pressure. The ceramic fiber board has excellent thermal shock resistance and mechanical shock resistance, and has a certain elasticity, which can further reduce the pressure and reduce the wear of the bottom plate on the insulation wall.

The inner plate is provided with a strip-shaped protrusion, and the outer layer plate is provided with a strip-shaped groove matching the strip-shaped protrusion. The length direction of the strip-shaped protrusion and the strip-shaped groove is the same as that of the square tube. Use the strip-shaped grooves matched with the strip-shaped protrusions to increase the friction between the inner plate and the outer plate and improve the structural strength. The length direction of the strip-shaped protrusions and strip-shaped grooves is the same as the length direction of the square tube. Shaped protrusions, strip-shaped grooves and square tube reinforcements limit the positional offset of the column in both the horizontal and vertical directions.

The strip protrusions are coated with a diamond coating, and the thickness of the diamond coating is between 80 μm and 100 μm. Increase the wear resistance of the strip-shaped protrusions, improve friction, and reduce damage, thereby increasing the service life of the bottom plate.

In specific use, the four gas burners are connected to a main gas supply pipeline for gas supply, and an automatic control butterfly valve is installed on the main gas supply pipeline; a temperature sensor is installed on the side wall of the zinc pot, and the temperature sensor will detect the The temperature of the zinc pot is transmitted to a conversion controller, and the conversion controller controls the butterfly valve switch automatically. Replace the original refractory bricks with ceramic fiber bricks, the high-temperature flue gas rotates clockwise, the heat utilization rate is improved, and the heat preservation effect is improved. When in use, it is not necessary to supply air in real time to burn heat preservation like traditional zinc pots, and automatic control can reduce Gas consumption.

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (6)

1. a kind of energy-saving type zinc pot heating furnace, comprises a heating furnace, and described heating furnace comprises a thermal insulation wall, and described thermal insulation wall surrounds the outside of a zinc pot, and described thermal insulation wall is provided with gas burner, is characterized in that , there are four gas burners, and the distance between two adjacent gas burners is the same; It also includes a wind blocking wall, one end of the wind blocking wall is connected to the thermal insulation wall, the other end of the wind blocking wall is connected to the zinc pot, and one side of the thermal insulation wall is provided with a flue for air outlet ; Both the thermal insulation wall and the wind blocking wall are piled up with ceramic fiber bricks made of ceramic fiber materials. 2. A kind of energy-saving zinc pot heating furnace as claimed in claim 1, characterized in that, a column for supporting the zinc pot is also provided between the zinc pot and the thermal insulation wall, and the two ends of the column are A bottom plate for reducing pressure is provided, the bottom plate at one end of the column is provided with a contact surface with the zinc pot, and the bottom plate at the other end of the column is provided with a contact surface with the thermal insulation wall; Both the upper and lower parts of the upright column are provided with a square tube for supporting the upright column, and the upright column and the square tube form a "cross" shape. 3. An energy-saving zinc pot heating furnace as claimed in claim 2, characterized in that, the column is made of stainless steel pipe, and the outside of the column is wrapped with a ceramic fiber blanket. 4. A kind of energy-saving zinc pot heating furnace as claimed in claim 2, characterized in that, the bottom plate comprises a double-layer structure formed by stacking two layers of plate-shaped bodies, and the two layers of plate-shaped bodies comprise an inner layer plate 1. An outer layer plate, with the plate-shaped body close to the column as the inner layer plate, and the plate-shaped body far away from the column as the outer layer plate, the inner layer plate is made of stainless steel plate, and the outer layer plate is made of ceramic As for the fiberboard, the area of the outer layer board is not smaller than the area of the inner layer board. 5. A kind of energy-saving zinc pot heating furnace as claimed in claim 4, characterized in that, said inner layer plate is provided with strip-shaped protrusions, and said outer layer plate is provided with said strip-shaped protrusions The matching strip-shaped groove, the length direction of the strip-shaped protrusion and the strip-shaped groove is the same as the length direction of the square tube. 6 . The energy-saving zinc pot heating furnace according to claim 5 , wherein the strip-shaped protrusions are coated with a diamond coating, and the thickness of the diamond coating is between 80 μm and 100 μm.