Combustion chamber of hot blast stove

Abstract

The combustion chamber comprises a shell, a combustion chamber body, a heat exchange chamber, a furnace body, a fuel inlet pipe and bottom feet, the combustion chamber body is located in the shell, the heat exchange chamber is installed above the combustion chamber body, the furnace body is installed on an installation base in the combustion chamber body, and the bottom feet are installed at the bottom of the shell. The fuel inlet pipe is installed on the side wall of the combustion chamber, a folded edge is arranged on the outer side of the upper end of the furnace body, a guide rod is arranged at the bottom of the folded edge, a guide hole matched with the guide rod is formed in the installation base, a counter bore is formed in the upper end of the guide hole, the diameter of the counter bore is larger than that of the guide hole, and a spring is installed in the counter bore. The spring is sleeved outside the guide rod; according to the utility model, by arranging the fuel baffle plate with a special structure and the furnace body mounting structure, when the whole weight of the furnace body is changed due to fuel loading or fuel burning, the stress balance of the compression spring of the furnace body is broken, certain vibration is generated, and ash is accelerated to fall from the ash leakage hole.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stove structures, and particularly relates to a combustion chamber of a hot blast stove. Background Art

[0002] A hot blast stove is a thermal power machine that has been widely used in China since the late 1970s. It has become a replacement product for electric heat sources and traditional steam power heat sources in many industries. There are many varieties and complete series of hot blast stoves. They are divided into two types: hand-fired and machine-fired according to the coal feeding method, and are divided into coal, oil, gas stoves, etc. according to the fuel type; the direct high-purification hot blast stove directly burns the fuel, forms hot air after high-purification treatment, and directly contacts the material for heating, drying or baking; for the existing hot blast stove using coal as fuel, the ashes after combustion are easy to block in the furnace body and are not easy to clean. After being blocked, it is easy to cause incomplete combustion of coal, which in turn affects the overall thermal efficiency of the hot blast stove, increases energy consumption. In view of the above problems, this application provides a solution. Content of the Utility Model

[0003] The purpose of the utility model is to provide a combustion chamber of a hot blast stove.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions:

[0005] A combustion chamber of a hot blast stove includes a housing, a combustion chamber, a heat exchange chamber, a furnace body, a fuel inlet pipe and a base. The combustion chamber is located inside the housing. The heat exchange chamber is installed above the combustion chamber. The furnace body is installed on a mounting seat inside the combustion chamber. The base is installed at the bottom of the housing. The fuel inlet pipe is installed on the side wall of the combustion chamber. A flange is provided on the outer side of the upper end of the furnace body. A guide rod is provided at the bottom of the flange. A guide hole matching the guide rod is provided on the mounting seat. The upper end of the guide hole is a counterbore, and the diameter of the counterbore is set to be larger than the diameter of the guide hole. A spring is installed in the counterbore, and the spring is sleeved outside the guide rod.

[0006] Furthermore, a fuel baffle is provided at the bottom of the furnace body. A number of uniformly distributed ash leakage holes and material scattering bumps are provided on the fuel baffle, and the ash leakage holes and the material scattering bumps are arranged in a staggered manner.

[0007] Furthermore, a conical wall sleeve is provided at the upper end of the inner wall of the combustion chamber, and the wall sleeve is made of ceramic material.

[0008] Furthermore, the upper end of the furnace door is hinged to the housing of the combustion chamber, and a handle is provided outside the furnace door.

[0009] Furthermore, an intake fan is installed at the air inlet of the combustion chamber.

[0010] Furthermore, the ash leakage holes are conical holes, and the size of the upper end of the ash leakage holes is smaller than that of the lower end.

[0011] In summary, the utility model has the following beneficial effects: By setting a fuel baffle and a furnace body installation structure with special structures, when the fuel is fed or part of the fuel is burned, the overall weight of the furnace body changes, and the force balance of the compression spring of the furnace body will be broken, generating a certain vibration, which accelerates the ash to fall from the ash leakage hole. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the utility model;

[0013] Figure 2 is a cross-sectional view of the furnace body;

[0014] Figure 3 is Figure 1 a partial enlarged view of

[0015] In the figure, 1, outer shell; 2, combustion chamber; 3, heat exchange chamber; 4, furnace body; 5, fuel inlet pipe; 6, mounting seat; 7, intake fan; 8, furnace door; 9, wall sleeve; 10, foot; 11, handle; 12, fuel baffle; 13, ash leakage hole; 14, bulk material bump; 15, hem; 16, guide rod; 17, counterbore; 18, spring. Detailed Embodiment

[0016] The following further describes the present utility model in detail with reference to the accompanying drawings. The technical solutions in the embodiments of the present utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] As Figures 1-3 shown, a combustion chamber of a hot blast stove includes an outer shell 1, a combustion chamber 2, a heat exchange chamber 3, a furnace body 4, a fuel inlet pipe 5 and a foot 10. The combustion chamber 2 is located inside the outer shell 2. The heat exchange chamber 3 is installed above the combustion chamber 2. The furnace body 2 is installed on a mounting seat 6 inside the combustion chamber 2. The foot 10 is installed at the bottom of the outer shell 1. The fuel inlet pipe 5 is installed on the side wall of the combustion chamber 2. A hem 15 is provided on the outer side of the upper end of the furnace body 4. A guide rod 16 is provided at the bottom of the hem 15. A guide hole matching the guide rod 16 is provided on the mounting seat 6. The upper end of the guide hole is a counterbore 17. The diameter of the counterbore 17 is set larger than the diameter of the guide hole. A spring 18 is installed in the counterbore 17. The spring 18 is sleeved outside the guide rod 16.

[0018] Furthermore, a fuel baffle 12 is provided at the bottom of the furnace body 4. A number of uniformly distributed ash leakage holes 13 and bulk material bumps 14 are provided on the fuel baffle 12, and the ash leakage holes 13 and the bulk material bumps 14 are arranged in a staggered manner.

[0019] Furthermore, a conical wall sleeve 9 is provided at the upper end of the inner wall of the combustion chamber 2. The wall sleeve 9 is made of ceramic material. The position of the wall sleeve 9 is the flame concentration area where the temperature is relatively high. By arranging the wall sleeve 9 here, the service life of the whole device can be increased.

[0020] Furthermore, the upper end of the furnace door 8 is hinged to the outer shell 1 of the combustion chamber 2. A handle 11 is provided on the outside of the furnace door 8. By opening the furnace door 8, the cinder at the bottom of the combustion chamber 2 can be taken out.

[0021] Furthermore, an intake fan 7 is installed at the air inlet of the combustion chamber 2. The intake fan 7 can blow in air to accelerate the combustion of the fuel and make its combustion more complete.

[0022] Furthermore, the ash leakage hole 13 is a conical hole, and the size of the upper end of the ash leakage hole 13 is smaller than that of the lower end. When the ash enters the ash leakage hole 13, the inverted conical design of the ash leakage hole 13 can reduce blockage.

[0023] Working principle: By setting the fuel baffle and the furnace body installation structure with special structures in the present utility model, when the fuel is fed or part of the fuel is burned, changing the overall weight of the furnace body, the force balance of the compression spring of the furnace body will be broken, generating a certain vibration to accelerate the fall of the ash from the ash leakage hole.

[0024] This specific embodiment is only an explanation of the present utility model and does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. A combustion chamber of a hot blast furnace, comprising a shell (1), a combustion chamber (2), a heat exchange chamber (3), a furnace body (4), a fuel inlet pipe (5) and a foot (10), wherein the combustion chamber (2) is located inside the shell (1), the heat exchange chamber (3) is mounted above the combustion chamber (2), the furnace body (4) is mounted on a mounting seat (6) inside the combustion chamber (2), the foot (10) is mounted on the bottom of the shell (1), and the fuel inlet pipe (5) is mounted on the side wall of the combustion chamber (2), characterized in that: A folded edge (15) is provided on the outer side of the upper end of the furnace body (4), a guide rod (16) is provided at the bottom of the folded edge (15), a guide hole matching the guide rod (16) is provided on the mounting seat (6), the upper end of the guide hole is a countersunk hole (17), the aperture of the countersunk hole (17) is larger than the aperture of the guide hole, a spring (18) is installed in the countersunk hole (17), and the spring (18) is sleeved on the outside of the guide rod (16).

2. The combustion chamber of a hot blast stove according to claim 1, characterized in that: A fuel baffle (12) is provided at the bottom of the furnace body (4), and a plurality of evenly distributed ash leakage holes (13) and bulk material protrusions (14) are provided on the fuel baffle (12), wherein the ash leakage holes (13) and the bulk material protrusions (14) are staggered.

3. The combustion chamber of a hot blast stove according to claim 2, characterized in that: A conical wall sleeve (9) is provided at the upper end of the inner wall of the combustion chamber (2), and the wall sleeve (9) is made of ceramic material.

4. The combustion chamber of a hot blast stove according to claim 3, characterized in that: The upper end of the furnace door (8) is hinged to the outer shell (1) of the combustion chamber (2), and a handle (11) is provided on the outside of the furnace door (8).

5. The combustion chamber of a hot blast stove according to claim 4, characterized in that: An air inlet fan (7) is installed at the air inlet of the combustion chamber (2).

6. The combustion chamber of a hot blast stove according to claim 2, characterized in that: The ash leakage hole (13) is a tapered hole, and the size of the upper end of the ash leakage hole (13) is smaller than the size of the lower end.

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