High-temperature split type hot blast stove

Abstract

The utility model relates to the technical field of boilers, in particular to a high-temperature split type hot blast stove which comprises a shell, a hearth arranged in the shell, an air duct arranged at one end of the hearth, a blower nozzle arranged at one end of the air duct, an impurity settling tank arranged on the upper portion of the hearth, and an opening arranged at one end of the impurity settling tank. The other end of the impurity settling tank is connected with a heat exchange bin through a connecting flue, and a heat exchange pipe is installed in the heat exchange bin. According to the high-temperature split type hot blast stove, by adopting a split type structure, the hearth, the heat exchange bin and other parts are separately arranged, so that the maintenance and cleaning work of equipment are more convenient, and the heat exchange efficiency is effectively improved. And the impurity settling tank is designed to collect impurities in the flue gas and prevent the impurities from accumulating at the inlet and outlet of the flue and the pipeline, so that the equipment is prevented from being blocked, and the heat exchange effect and long-term stable operation of the equipment are further ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, and specifically, to a high-temperature split hot blast stove. Background Art

[0002] In the technical field of boilers, as an important heat energy device, the hot blast stove is widely used in various industrial productions and heating processes. The traditional hot blast stove is usually designed as an integrated structure, and its furnace chamber, heat exchange components and smoke exhaust system are all integrated in a whole shell.

[0003] However, there are many limitations in this integrated design, such as difficult maintenance, low heat exchange efficiency, and unsatisfactory emission control. In addition, certain impurity precipitates will be generated in the flue gas inside the equipment. After long-term use of the equipment, a large amount of impurities will accumulate at the inlets and outlets of the flue and pipeline, causing equipment blockage and affecting the heat exchange effect of the equipment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a high-temperature split hot blast stove to solve the problems of many limitations in the integrated design mentioned in the above background art, such as difficult maintenance, low heat exchange efficiency, and unsatisfactory emission control. In addition, certain impurity precipitates will be generated in the flue gas inside the equipment. After long-term use of the equipment, a large amount of impurities will accumulate at the inlets and outlets of the flue and pipeline, causing equipment blockage and affecting the heat exchange effect of the equipment.

[0005] To achieve the above purpose, the utility model provides a high-temperature split hot blast stove, including a shell. A furnace chamber is arranged inside the shell. An air duct is arranged at one end of the furnace chamber. An air inlet is arranged at one end of the air duct. An impurity sedimentation tank is arranged above the furnace chamber. An opening is arranged at one end of the impurity sedimentation tank. The other end of the impurity sedimentation tank is connected to a heat exchange chamber through a connecting flue. Heat exchange tubes are installed inside the heat exchange chamber.

[0006] Preferably, a grate is installed at the bottom of the furnace chamber, and a hopper is installed at one end of the grate.

[0007] Preferably, a number of smoke deflecting walls are installed inside the impurity sedimentation tank.

[0008] Preferably, a base is installed at the bottom of the shell.

[0009] Preferably, the heat exchange tubes are arranged vertically. Buffer chambers are arranged at the upper and lower ends of the heat exchange tubes inside the heat exchange chamber. The inside of the heat exchange chamber forms an S-shaped heat exchange channel through the combination of the heat exchange tubes and the buffer chambers. One end of the heat exchange channel is communicated with the connecting flue, and the other end is provided with a smoke exhaust port.

[0010] Preferably, a cleaning opening is provided on the side wall of the buffer bin, and a cover plate is detachably installed on the cleaning opening.

[0011] Preferably, a cold air inlet is provided at one end of the heat exchange bin, and a hot air outlet is provided at the other end.

[0012] Preferably, a slag discharge port is provided on the outer wall of one side of the impurity sedimentation tank, and a cover plate is detachably installed outside the slag discharge port.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In this high-temperature split hot blast stove, innovative designs have been made for the problems existing in traditional integrated hot blast stoves, such as difficult maintenance, low heat exchange efficiency, unsatisfactory emission control, and equipment blockage caused by impurity accumulation. By adopting a split structure, components such as the furnace chamber and the heat exchange bin are separately arranged, making the maintenance and cleaning work of the equipment more convenient.

[0015] Meanwhile, the design of the impurity sedimentation tank can collect impurities in the flue gas, prevent them from accumulating at the inlet and outlet of the flue and pipeline, avoid equipment blockage, and further ensure the heat exchange effect and long-term stable operation of the equipment. In addition, the S-shaped heat exchange channels provided inside the heat exchange bin increase the contact time between the flue gas and the heat exchange tubes, improving the heat exchange efficiency. To sum up, the high-temperature split hot blast stove of the present utility model has significant technical advantages and practical application values in the field of boiler technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the heat exchange bin in the present utility model;

[0018] Figure 3 is a schematic top view structure of the present utility model;

[0019] The meanings of each label in the figure are as follows:

[0020] 1. Outer shell; 11. Furnace chamber; 12. Air duct; 13. Air inlet for blowing; 14. Smoke deflecting wall; 2. Grate; 3. Base; 4. Hopper; 5. Impurity sedimentation tank; 6. Connecting flue; 7. Heat exchange bin; 71. Heat exchange tube; 72. Cleaning opening; 73. Cold air inlet; 74. Hot air outlet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] The present utility model provides a high-temperature split hot blast stove, as Figures 1 - 3 shown, which includes a housing 1. Inside the housing 1, there is a furnace chamber 11. One end of the furnace chamber 11 is provided with an air duct 12, and one end of the air duct 12 is provided with an air inlet 13. Above the furnace chamber 11, there is an impurity sedimentation tank 5. One end of the impurity sedimentation tank 5 is provided with an opening, and the other end of the impurity sedimentation tank 5 is connected to a heat exchange chamber 7 through a connecting flue 6. Inside the heat exchange chamber 7, heat exchange tubes 71 are installed. Through a clever structural design, efficient and stable heat energy conversion is achieved. The furnace chamber 11 provided inside the housing 1, as a combustion space, can effectively accommodate fuel and conduct sufficient combustion. The design of the air duct 12 and the air inlet 13 at one end of the furnace chamber 11 ensures sufficient oxygen supply during the combustion process, further improving the combustion efficiency.

[0023] Particularly important is the design of the impurity sedimentation tank 5 above the furnace chamber 11, which effectively collects impurities and particulate matter generated during the combustion process, preventing these impurities from entering the subsequent heat exchange system, thereby avoiding blockage of the heat exchange tubes 71 and the connecting flue 6 and ensuring the long-term stable operation of the equipment. At the same time, the opening design at one end of the impurity sedimentation tank 5 facilitates regular cleaning and maintenance, reducing the use cost of the equipment.

[0024] In addition, the impurity sedimentation tank 5 is connected to the heat exchange chamber 7 through the connecting flue 6. The heat exchange tubes 71 installed inside the heat exchange chamber 7 are responsible for efficiently transferring the heat energy generated by combustion to the working medium, achieving full utilization of heat energy. This split structural design not only improves the heat exchange efficiency of the equipment but also makes the maintenance and cleaning work of the equipment more convenient.

[0025] In this embodiment, a grate 2 is installed at the bottom of the furnace chamber 11, and a hopper 4 is installed at one end of the grate 2, facilitating the feeding operation to the grate 2.

[0026] Specifically, a number of smoke deflecting walls 14 are installed inside the impurity sedimentation tank 5 to ensure an increased flow path of the flue gas, enabling the impurities to fully settle in the impurity sedimentation tank 5.

[0027] Furthermore, a base 3 is installed at the bottom of the housing 1 to facilitate the support and fixation of the equipment.

[0028] Furthermore, the heat exchange tubes 71 are vertically arranged. The inside of the heat exchange chamber 7 at the upper and lower ends of the heat exchange tubes 71 is a buffer chamber. The inside of the heat exchange chamber 7 forms an S-shaped heat exchange channel through the combination of the heat exchange tubes 71 and the buffer chamber. One end of the heat exchange channel is connected to the connecting flue 6, and the other end is provided with a smoke exhaust port, which facilitates the heat exchange between the high-temperature flue gas and the cold air, and then heats the cold air into hot air and discharges it.

[0029] Furthermore, a cleaning port 72 is provided on the side wall of the buffer chamber. A cover plate is detachably installed on the cleaning port 72, which facilitates the cleaning of the upper and lower ends of the heat exchange tubes 71 and avoids blockage caused by the accumulation of impurities.

[0030] Furthermore, a cold air inlet 73 is provided at one end of the heat exchange chamber 7, and a hot air outlet 74 is provided at the other end, which facilitates the entry of external cold air and the discharge of hot air after formation.

[0031] Furthermore, a slag discharge port is provided on the outer wall of one side of the impurity settling tank 5. A cover plate is detachably installed outside the slag discharge port, which facilitates the cleaning of the impurity settling tank 5.

[0032] When the high-temperature split hot blast stove of the present utility model is in use, first, fuel is added to the grate 2 through the hopper 4, and the fuel burns in the furnace chamber 11. During the combustion process, the air blower port 13 continuously sends sufficient oxygen into the air duct 12 to ensure the full combustion of the fuel, thereby improving the combustion efficiency.

[0033] The flue gas generated by combustion carries a large amount of heat energy and is mixed with some impurities and particulate matters. These flue gases rise and enter the impurity settling tank 5. Due to the design of the smoke deflecting wall 14, the flow path of the flue gas increases, enabling the impurities and particulate matters therein to fully settle in the impurity settling tank 5 and preventing them from entering the subsequent heat exchange system.

[0034] The flue gas that has undergone preliminary purification then enters the heat exchange chamber 7 through the connecting flue 6. The heat exchange tubes 71 installed inside the heat exchange chamber 7 are vertically arranged, forming an S-shaped heat exchange channel with the flue gas. In this way, the flue gas fully exchanges heat with the heat exchange tubes 71 in the heat exchange channel, transferring the heat energy to the working medium inside the heat exchange tubes 71.

[0035] At the same time, external cold air enters the heat exchange chamber 7 through the cold air inlet 73, contacts the heat exchange tubes 71 that have undergone heat exchange, and is thus heated into hot air. Finally, the hot air is discharged through the hot air outlet 74 for external use.

[0036] During the operation of the equipment, impurities and sediments may accumulate in the impurity settling tank 5 and the buffer chamber of the heat exchange chamber 7. To maintain the long-term stable operation of the equipment, it is necessary to regularly clean and maintain through the slag discharge port and the cleaning port 72.

[0037] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A high-temperature split hot air furnace, comprising a housing (1), characterized in that: A furnace (11) is provided inside the shell (1), an air duct (12) is provided at one end of the furnace (11), an air blast port (13) is provided at one end of the air duct (12), an impurity settling tank (5) is provided at the top of the furnace (11), an opening is provided at one end of the impurity settling tank (5), the other end of the impurity settling tank (5) is connected to a heat exchange chamber (7) via a connecting flue (6), and a heat exchange pipe (71) is installed inside the heat exchange chamber (7).

2. The high temperature split hot blast furnace according to claim 1, characterized in that: A grate (2) is installed at the bottom of the furnace (11), and a hopper (4) is installed at one end of the grate (2).

3. The high temperature split hot blast furnace according to claim 1, characterized in that: A plurality of smoke folding walls (14) are installed inside the impurity settling tank (5).

4. The high temperature split hot blast furnace according to claim 1, characterized in that: A base (3) is installed at the bottom of the housing (1).

5. The high temperature split hot blast furnace according to claim 1, characterized in that: The heat exchange tube (71) is arranged vertically, and the interior of the heat exchange chamber (7) is located at the upper and lower ends of the heat exchange tube (71) as a buffer chamber. The interior of the heat exchange chamber (7) forms an S-shaped heat exchange channel through the combination of the heat exchange tube (71) and the buffer chamber. One end of the heat exchange channel is connected to the connecting flue (6), and the other end is provided with a smoke exhaust port.

6. The high temperature split hot blast furnace according to claim 5, characterized in that: The side wall of the buffer bin is provided with a cleaning port (72), and a cover plate is detachably mounted on the cleaning port (72).

7. The high temperature split hot blast furnace according to claim 5, characterized in that: One end of the heat exchange chamber (7) is provided with a cold air inlet (73), and the other end is provided with a hot air outlet (74).

8. The high temperature split hot blast furnace according to claim 1, characterized in that: A slag discharge port is provided on one side outer wall of the impurity settling tank (5), and a cover plate is detachably mounted on the outside of the slag discharge port.

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