Super-temperature automatic protection type hot blast stove

Abstract

The utility model provides a kind of over-temperature automatic protection type hot blast furnace, comprising: combustion chamber main body, heat exchange chamber main body, two curved channel conveying pipes, multiple air inlet heads, multiple conveying heads and two air outlet pipes;The heat exchange chamber main body is installed at the top of the combustion chamber main body;Two the curved channel conveying pipes are respectively installed at the both sides of the combustion chamber main body surface;Multiple the air inlet heads are respectively installed between two the curved channel conveying pipes and the combustion chamber main body;Multiple the conveying heads are respectively connected to one side of two the curved channel conveying pipes;Two the air outlet pipes are respectively connected between multiple the conveying heads.The utility model provides a kind of over-temperature automatic protection type hot blast furnace, is provided with two curved channel conveying pipes, multiple air inlet heads, multiple conveying heads and two air outlet pipes between combustion chamber main body and heat exchange chamber main body, the heat generated in combustion chamber main body can increase flow path to improve heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of hot blast stoves, and in particular to an over-temperature automatic protection hot blast stove. Background Technology

[0002] To ensure safe production, relevant national standards have set upper limits on the flue gas temperature at the high-temperature end of the heat exchanger in hot blast stoves. As required, most hot blast stove manufacturers currently install temperature sensors at the flue gas inlet of the heat exchanger. When the flue gas temperature at the high-temperature end of the heat exchanger reaches the upper limit, the induced draft fan stops running, combustion weakens, and the flue gas temperature gradually decreases. When it drops to the set temperature, the induced draft fan restarts, and the hot blast stove resumes operation. Although this setup has the function of over-temperature protection, it has the disadvantage of cooling down too slowly. Especially when burning high-calorific-value coal, under the influence of the high-temperature furnace and the chimney of more than 15 meters installed for environmental protection purposes, a brief heating phenomenon may occur, and the risk of the heat exchanger burning out still exists.

[0003] The prior art patent application with publication number CN217303201U, by setting up a temperature sensor, in conjunction with a cooling pipe and a control valve, can increase the power of the blower by opening the control valve when overheating is detected. This improves heat exchange efficiency and allows cold air from the outside to enter the flue pipe for rapid cooling, preventing damage to the electrostatic precipitator from overheating and improving the practicality of the device.

[0004] The long-cylinder centrifugal fans installed on both sides of the heat exchange chamber, along with corresponding ventilation plates, can insulate the heat exchange chamber while preheating the combustion-supporting gas using energy that would otherwise be lost, thus improving energy utilization and enhancing the practicality of the device.

[0005] However, the ventilation plate between the current combustion chamber and heat exchange chamber only passes through the insulation sleeve and connects to the lower sides of the combustion chamber, resulting in a short heat recovery path, insufficient heat exchange time between the combustion gas and the furnace wall, and difficulty in improving energy recovery efficiency.

[0006] Therefore, it is necessary to provide an over-temperature automatic protection hot blast furnace to solve the above-mentioned technical problems. Utility Model Content

[0007] This utility model provides an over-temperature automatic protection hot air furnace, which solves the problem that the current ventilation plate between the combustion chamber and the heat exchange chamber only passes through the heat insulation sleeve and connects to the lower sides of the combustion chamber, resulting in a short heat recovery path, insufficient heat exchange time between the combustion gas and the furnace wall, and difficulty in improving energy recovery efficiency.

[0008] To solve the above-mentioned technical problems, this utility model provides an automatic over-temperature protection hot air furnace, comprising:

[0009] Combustion chamber body, heat exchange chamber body, two curved delivery pipes, multiple air inlet heads, multiple delivery heads, and two air outlet pipes;

[0010] The heat exchange chamber body is installed on top of the combustion chamber body;

[0011] The two curved delivery pipes are respectively installed on both sides of the surface of the combustion chamber body;

[0012] The plurality of air intake heads are respectively installed between the two curved delivery pipes and the combustion chamber body;

[0013] The plurality of conveying heads are respectively connected to one side of the two curved conveying pipes;

[0014] The two air outlet pipes are respectively connected between the plurality of conveying heads.

[0015] Preferably, the surfaces of the two curved conveying pipes are provided with heat insulation components, the heat insulation components including heat insulation covers, multiple mounting blocks and multiple bolts, the heat insulation covers are fitted onto the surface of the curved conveying pipes, and the multiple mounting blocks are respectively connected to both sides of the heat insulation covers.

[0016] Preferably, the plurality of bolts are respectively disposed between the plurality of mounting blocks and the combustion chamber body.

[0017] Preferably, the two ends of the heat exchange chamber body are respectively connected to a first pipe and a second pipe.

[0018] Preferably, one end of the second pipe is connected to a dust collector.

[0019] Preferably, the surface of the heat insulation cover is provided with a protective component, which includes a heat insulation pad, a plurality of rectangular blocks and a plurality of fixing bolts. The heat insulation pad is disposed on the surface of the heat insulation cover, and the plurality of rectangular blocks are respectively connected to both sides of the heat insulation pad.

[0020] Preferably, the plurality of fixing bolts are respectively disposed between the plurality of rectangular blocks and the heat insulation cover.

[0021] Compared with related technologies, the automatic over-temperature protection hot air furnace provided by this utility model has the following beneficial effects:

[0022] This utility model provides an overheat automatic protection hot air furnace, which has two curved conveying pipes, multiple air inlets, multiple conveying heads and two air outlets between the combustion chamber body and the heat exchange chamber body, so as to increase the flow path of the heat generated in the combustion chamber body and thus improve the heat exchange effect. Attached Figure Description

[0023] Figure 1A schematic diagram of the structure of a first embodiment of an overheat automatic protection hot air furnace provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the hot blast stove from a first-person perspective.

[0025] Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below;

[0026] Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the hot blast stove from a second perspective.

[0027] Figure 5 A schematic diagram of the structure of a second embodiment of an overheat automatic protection hot air furnace provided by this utility model;

[0028] Figure 6 for Figure 5 The enlarged schematic diagram of part B is shown.

[0029] The diagram labels are as follows: 1. Combustion chamber main body; 2. Heat exchange chamber main body; 3. Bent-shaped delivery pipe; 4. Inlet head; 5. Delivery head; 6. Outlet pipe;

[0030] 7. Thermal insulation components; 71. Thermal insulation cover; 72. Mounting block; 73. Bolts;

[0031] 8. First pipeline; 9. Dust collector; 10. Second pipeline;

[0032] 11. Protective components; 111. Heat insulation pad; 112. Rectangular block; 113. Fixing bolt. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0034] First Embodiment

[0035] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of an overheat automatic protection hot air furnace provided by this utility model; Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the hot blast stove from a first-person perspective. Figure 3 for Figure 2 The enlarged schematic diagram of part A shown below; Figure 4 for Figure 1 The diagram shows a three-dimensional structural representation of the hot blast stove from a second perspective. A hot blast stove with automatic over-temperature protection includes:

[0036] Combustion chamber body 1, heat exchange chamber body 2, two curved delivery pipes 3, multiple air inlet heads 4, multiple delivery heads 5, and two air outlet pipes 6;

[0037] The heat exchange chamber body 2 is installed on top of the combustion chamber body 1;

[0038] The two curved delivery pipes 3 are respectively installed on both sides of the surface of the combustion chamber body 1;

[0039] Multiple air intake heads 4 are respectively installed between the two curved delivery pipes 3 and the combustion chamber body 1;

[0040] The plurality of conveying heads 5 are respectively connected to one side of the two curved conveying pipes 3;

[0041] The two air outlet pipes 6 are respectively connected between the plurality of conveying heads 5.

[0042] The surfaces of the two curved conveying pipes 3 are provided with heat insulation components 7. The heat insulation components 7 include heat insulation covers 71, multiple mounting blocks 72 and multiple bolts 73. The heat insulation covers 71 are fitted onto the surface of the curved conveying pipes 3, and the multiple mounting blocks 72 are respectively connected to both sides of the heat insulation covers 71.

[0043] The heat shield 71 is U-shaped, and multiple threaded holes adapted to bolts 73 are provided on the surface of the combustion chamber body 1. The exhaust pipe 6 is connected to the surface of the heat exchange chamber body 2. The first pipe 8 is a hot air pipe, and the second pipe 10 is a smoke outlet pipe, which can transport the smoke to the interior of the dust collector 9 for dust removal.

[0044] The plurality of bolts 73 are respectively disposed between the plurality of mounting blocks 72 and the combustion chamber body 1.

[0045] The two ends of the heat exchange chamber body 1 are respectively connected to a first pipe 8 and a second pipe 10.

[0046] One end of the second pipe 10 is connected to a dust collector 9.

[0047] The use of the heat shield 71 facilitates the protection of the curved delivery pipe 3. First, the heat shield 71 with multiple mounting blocks 72 is placed on the surface of the curved delivery pipe 3. Then, multiple bolts 73 are passed through the multiple mounting blocks 72 and threadedly connected to the combustion chamber body 1.

[0048] The working principle of the automatic over-temperature protection hot air furnace provided by this utility model is as follows:

[0049] In use, when heat is generated inside the combustion chamber body 1, the heat is transported to the inside of the curved conveying pipe 3 through the exhaust and intake head 4. After the heat is transported to the inside of the curved conveying pipe 3, it is then transported to the inside of the exhaust pipe 6 through multiple conveying heads 5. Finally, the heat is transported to the inside of the heat exchange chamber body 2 through the exhaust pipe 6.

[0050] Compared with related technologies, the automatic over-temperature protection hot air furnace provided by this utility model has the following beneficial effects:

[0051] This utility model provides an overheat automatic protection hot air furnace, which has two curved conveying pipes 3, multiple air inlets 4, multiple conveying heads 5 and two air outlet pipes 6 arranged between the combustion chamber body 1 and the heat exchange chamber body 2, so as to increase the flow path of the heat generated in the combustion chamber body 1 and thus improve the heat exchange effect.

[0052] Second Embodiment

[0053] Please refer to the following: Figure 5 and Figure 6 Based on the first embodiment of this application which provides an automatic over-temperature protection hot blast furnace, the second embodiment of this application proposes another automatic over-temperature protection hot blast furnace. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0054] Specifically, the difference in the overheat automatic protection hot air furnace provided in the second embodiment of this application is that, in the overheat automatic protection hot air furnace, the surface of the heat insulation cover 71 is provided with a protective component 11, the protective component 11 includes a heat insulation pad 111, a plurality of rectangular blocks 112 and a plurality of fixing bolts 113, the heat insulation pad 111 is disposed on the surface of the heat insulation cover 71, and the plurality of rectangular blocks 112 are respectively connected to both sides of the heat insulation pad 111.

[0055] The rectangular block 112 and the fixing bolt 113 facilitate the connection between the heat insulation pad 111 and the heat insulation cover 71. Fixing holes adapted to the fixing bolt 113 are provided on the surface of the heat insulation cover 71.

[0056] Multiple fixing bolts 113 are respectively disposed between multiple rectangular blocks 112 and the heat insulation cover 71.

[0057] The working principle of the automatic over-temperature protection hot air furnace provided by this utility model is as follows:

[0058] When using it, to increase the heat insulation effect of the heat insulation cover 71, first place the heat insulation pad 111 with multiple rectangular blocks 112 on the surface of the heat insulation cover 71, and then use multiple fixing bolts 113 to pass through the multiple rectangular blocks 112 and connect them to the heat insulation cover 71.

[0059] Compared with related technologies, the automatic over-temperature protection hot air furnace provided by this utility model has the following beneficial effects:

[0060] This utility model provides an over-temperature automatic protection hot air furnace. The protective component 11 on the surface of the heat insulation cover 71 can increase the heat insulation effect of the heat insulation cover 71.

[0061] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An overheat automatic protection hot air furnace, characterized in that, include: Combustion chamber body, heat exchange chamber body, two curved delivery pipes, multiple air inlet heads, multiple delivery heads, and two air outlet pipes; The heat exchange chamber body is installed on top of the combustion chamber body; The two curved delivery pipes are respectively installed on both sides of the surface of the combustion chamber body; The plurality of air intake heads are respectively installed between the two curved delivery pipes and the combustion chamber body; The plurality of conveying heads are respectively connected to one side of the two curved conveying pipes; The two air outlet pipes are respectively connected between the plurality of conveying heads.

2. The over-temperature automatic protection hot air furnace according to claim 1, characterized in that, The surfaces of the two curved conveying pipes are provided with heat insulation components, which include heat insulation covers, multiple mounting blocks and multiple bolts. The heat insulation covers are fitted onto the surfaces of the curved conveying pipes, and the multiple mounting blocks are respectively connected to both sides of the heat insulation covers.

3. The over-temperature automatic protection hot air furnace according to claim 2, characterized in that, The bolts are respectively disposed between the mounting blocks and the combustion chamber body.

4. The over-temperature automatic protection hot air furnace according to claim 1, characterized in that, The two ends of the heat exchange chamber body are respectively connected to a first pipe and a second pipe.

5. The over-temperature automatic protection hot air furnace according to claim 4, characterized in that, A dust collector is connected to one end of the second pipe.

6. The over-temperature automatic protection hot air furnace according to claim 2, characterized in that, The surface of the heat insulation cover is provided with a protective component, which includes a heat insulation pad, multiple rectangular blocks and multiple fixing bolts. The heat insulation pad is disposed on the surface of the heat insulation cover, and the multiple rectangular blocks are respectively connected to both sides of the heat insulation pad.

7. The over-temperature automatic protection hot air furnace according to claim 6, characterized in that, Multiple fixing bolts are respectively disposed between multiple rectangular blocks and the heat insulation cover.

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