CN220119869U - Water cooling tuyere of surrounding type cupola - Google Patents

Abstract

The utility model relates to the technical field of cupola furnaces, specifically a surrounding cupola water-cooling air outlet, which includes a water-cooling part. The water-cooling part includes an air outlet unit that is installed on the cupola furnace body. The air outlet unit includes a ventilation vertical pipe that can pass in air. The ventilation riser pipe is installed on the cold air hood; the cupola furnace body and the air outlet unit are respectively provided with a second surrounding water-cooling pipe and a first surrounding water-cooling pipe that are arranged around and connected to each other, which can reduce the temperature of the incoming air. Improve cooling capacity. The water-cooling part provided can provide the furnace body and the tuyere unit with the second surrounding water-cooling tube and the first surrounding water-cooling tube, which can provide cooling conditions for the air entering the tuyere, and can be quickly applied in conjunction with the cooling liquid inside the water-cooling tube. Cooling environment; The wrap-around water-cooling structure cooperates with the air vents to continuously deliver cooling sources. Compared with the traditional water-cooling method, this device can avoid wastewater pollution and can obtain cooling capacity by reducing the temperature of the incoming air.

Description

Surround cupola water-cooled air vents

Technical field

The utility model relates to the technical field of cupola furnaces, specifically to a surrounding cupola water-cooling air outlet.

Background technique

Cupola is an important equipment for melting cast iron in foundry production; because the top of the furnace opens upward, it is called cupola.

The working process of the cupola furnace: First, a certain amount of coal is loaded into the furnace as the bottom coke. Its height is generally more than one meter. After ignition, add the bottom coke to the specified height. The height from the tuyere to the top surface of the bottom coke is the bottom coke height. Then add the prepared limestone, metal charge and layer coke from the charging port in order and in batches according to the melting rate of the furnace. Keep the top surface of the charge at the lower edge of the charging port during the entire furnace opening process. The air blown into the furnace through the tuyere reacts with the bottom coke, and the generated high-temperature furnace gas flows upward, heating the charge, and melting the first batch of metal charge on the top surface of the bottom coke. As the molten iron drops fall into the hearth, they are further heated by high-temperature furnace gas and hot coke, a process called superheating. As the bottom coke burns away and the metal charge melts, the material layer gradually decreases. After each batch of charge is melted, the fuel is supplemented by additional layer coke, so that the height of the bottom coke remains basically unchanged, and the entire melting process proceeds continuously.

The above-mentioned operations will generate continuous high temperatures, so the operation needs to be stopped after a certain period of production to cool the furnace. Currently, most cupola furnaces use water-cooled spray, but this will produce a large amount of waste water; relying solely on the cooling air vents for natural cooling is less effective. Poor; therefore, consider designing a cooling air outlet structure that can use water cooling but avoid wastewater pollution. In view of this, we propose a wrap-around cupola water-cooling air outlet.

Utility model content

In order to make up for the above shortcomings, the present utility model provides a surrounding cupola water-cooling air outlet.

The technical solution of this utility model is:

The surrounding cupola water-cooling air outlet includes a cupola furnace body, a spark shield is installed on the cupola furnace body, and also includes:

Water-cooling section, the water-cooling section includes a tuyere unit that is mounted on the cupola body, the tuyere unit includes a ventilation standpipe that can pass in air, and the ventilation standpipe is mounted on the cold air hood;

Moreover, the cupola furnace body and the tuyere unit are respectively provided with second surrounding water-cooling tubes and first surrounding water-cooling tubes that are arranged around and connected to each other, which can reduce the temperature of the incoming air and improve the cooling capacity.

Preferably, the cupola furnace body is provided with a furnace lining capable of holding bottom coke, an air supply chamber is provided between the furnace lining and the furnace wall, and a smoke exhaust chimney is provided above the air supply chamber; and The second surrounding water-cooling pipe is installed in the air supply cavity.

Preferably, a multi-layer thermal conductive ring is fixedly installed in the air supply chamber, and the thermal conductive ring is provided with flow holes capable of maintaining air flow.

Preferably, an air guide duct is installed on the air supply chamber, and the air guide duct is electrically connected to the cold air hood.

Preferably, a liquid pipe is installed in the air duct, and the first surrounding water-cooling pipe and the second surrounding water-cooling pipe are electrically connected through the liquid pipe.

Preferably, the cold air hood is provided with a threaded groove inside.

Preferably, the first surrounding water-cooling pipe is externally connected to a liquid water cooler or a liquid refrigerator.

Compared with the existing technology, the beneficial effects of this utility model are:

The surrounding cupola water-cooling air outlet can provide the furnace body and the air outlet unit with a second surrounding water-cooling pipe and a first surrounding water-cooling pipe through the provided water cooling section, which can provide cooling conditions for the air entering the air outlet, and can With the cooling liquid inside the water-cooling tube, the cooling environment is quickly applied; the surrounding water-cooling structure cooperates with the air vent to continuously deliver the cooling source. Compared with the traditional water-cooling method, this device can avoid wastewater pollution and can obtain cooling capacity by reducing the temperature of the incoming air. .

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the utility model;

Figure 2 is a cutaway and exploded view of the overall structure of the utility model;

Figure 3 is a cutaway and exploded view of the air outlet unit of the present utility model.

The meaning of each label in the figure is:

1. Cupola furnace body; 11. Furnace lining; 101. Smoke exhaust chimney; 102. Air supply chamber; 2. Spark cover; 3. Air outlet unit; 31. Cold air cover; 311. Threaded groove; 32. Ventilation riser; 321 , through hole; 33. Air duct; 34. Liquid pipe; 35. First surrounding water-cooling tube; 4. Heat-conducting ring; 41. Flow hole; 5. Second surrounding water-cooling tube.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", The directions indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" etc. Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the equipment or components referred to must have a specific orientation, be constructed in a specific orientation, and operation, therefore it cannot be construed as a limitation of the present invention.

Please refer to Figures 1-3. The present utility model details the above technical solution through the following examples:

The surrounding cupola water-cooling air outlet includes a cupola furnace body 1, a spark shield 2 is installed on the cupola furnace body 1, and also includes:

The water cooling part includes an air outlet unit 3 installed on the cupola furnace body 1. The air outlet unit 3 includes a ventilation standpipe 32 that can pass in air. The ventilation standpipe 32 is installed on the cold air hood 31; and the cupola The furnace body 1 and the tuyere unit 3 are respectively provided with second surrounding water-cooling tubes 5 and first surrounding water-cooling tubes 35 that are arranged around and connected to each other, which can reduce the temperature of the incoming air and improve the cooling capacity.

A furnace lining 11 capable of holding bottom coke is provided inside the cupola furnace body 1. An air supply chamber 102 is provided between the furnace lining 11 and the furnace wall. A smoke exhaust chimney 101 is provided above the air supply chamber 102; and a second surrounding water-cooling The pipe 5 is installed around the air supply cavity 102 and has a structure as shown in Figure 2. A nine-layer heat conduction ring 4 is fixedly installed in the air supply cavity 102, and the heat conduction ring 4 is provided with flow holes 41 that can maintain air flow. An air guide duct 33 is installed on the air supply cavity 102, and the air guide duct 33 is connected to the cold air cover 31; the air guide duct 33 can transport the air in the air outlet unit 3 to the air supply cavity 102, and the high temperature will be transferred For the thermal conductive ring 4, this embodiment uses an aluminum alloy profile, which has good thermal conductivity and can quickly exchange heat with the air.

A liquid pipe 34 is installed in the air guide pipe 33. The first surrounding water-cooling pipe 35 and the second surrounding water-cooling pipe 5 on both sides are electrically connected through the liquid pipe 34. The first surrounding water-cooling pipe 35 is connected to an external water-cooling cycle machine to provide Cooling water, the cooling air cover 31 is provided with a threaded groove 311 inside, the air can contact the first surrounding water-cooling pipe 35 and the second surrounding water-cooling pipe 5 containing cooling water, and heat transfer occurs to reduce the temperature and absorb the temperature in the furnace.

For the surrounding cupola water-cooling air outlet of this embodiment, the staff first introduces air through the through hole 321 on the ventilation vertical pipe 32, and circulates and injects cooling water into the first surrounding water-cooling pipe 35 and the second surrounding water-cooling pipe 5. The air is Under the influence of the thread groove 311, spiral rotation will occur, which increases the contact area with the pipe body, improves heat transfer, reduces the air temperature, and is input into the air supply cavity 102 at a lower temperature. At this time, the air in the air supply cavity 102 will Realize heat exchange, and at the same time, the second surrounding water-cooling pipe 5 absorbs heat, realizing the combination of water cooling and air cooling, but this process does not produce waste water, and can make full use of thermal energy to obtain water with an increased temperature. The water with high temperature can also increase the temperature by absorbing heat. Heat utilization.

The basic principles, main features and advantages of the present utility model are shown and described above. Those skilled in the industry should understand that the present utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the present utility model, Under the premise of keeping the spirit and scope of the present utility model, there will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. Surrounding cupola water-cooling air outlet, including a cupola furnace body (1). A spark cover (2) is installed on the cupola furnace body (1). It is characterized in that: it also includes: Water-cooling part, the water-cooling part includes an air outlet unit (3) installed on the cupola furnace body (1), and the air outlet unit (3) includes a ventilation standpipe (32) that can pass air, so The ventilation vertical pipe (32) is connected and installed on the cold air hood (31); And the cupola furnace body (1) and the tuyere unit (3) are respectively provided with a second surrounding water-cooling pipe (5) and a first surrounding water-cooling pipe (35) that are arranged around and connected to each other, which can reduce the air temperature to increase cooling capacity. 2. The surrounding cupola water cooling air outlet according to claim 1, characterized in that: the cupola furnace body (1) is provided with a furnace lining (11) capable of holding bottom coke, and the furnace lining (11) and An air supply cavity (102) is provided between the furnace walls, and a smoke exhaust chimney (101) is provided above the air supply cavity (102); and the second surrounding water-cooling pipe (5) is installed around the air supply cavity (102). inside the cavity (102). 3. The surrounding cupola water-cooling air outlet according to claim 2, characterized in that: a multi-layer heat conduction ring (4) is fixedly installed in the air supply cavity (102), and the heat conduction ring (4) is provided with There are flow holes (41) capable of maintaining air flow. 4. The surrounding cupola water cooling air outlet according to claim 3, characterized in that: an air guide duct (33) is installed on the air supply cavity (102), and the air guide duct (33) is connected to The cold air cover (31) is electrically connected. 5. The surrounding cupola water-cooling air outlet according to claim 4, characterized in that: a liquid pipe (34) is installed in the air guide pipe (33), and the first surrounding water-cooling pipe (35) and the second The surrounding water-cooling pipes (5) are electrically connected through the liquid pipe (34). 6. The surrounding cupola water-cooling air outlet according to claim 1, characterized in that: the cold air cover (31) is provided with a threaded groove (311) inside. 7. The surrounding cupola water-cooling air outlet according to claim 1, characterized in that: the first surrounding water-cooling pipe (35) is externally connected to a liquid water cooler or a liquid refrigerator.