Efficient and energy-saving magnesite block porous light burning annular kiln

Abstract

The utility model relates to the technical field of magnesite block light burning, and discloses an efficient and energy-saving magnesite block porous light burning annular kiln which comprises a vertical feeding cylinder, the vertical feeding cylinder is installed in the center area of the top of an outer kiln body, and smoke exhaust holes communicated with the outside space are formed in the circumferential face, close to the top, of the outer kiln body. The annular section consists of an inner kiln body and an outer kiln body, and a plurality of annular array type internal combustion chambers are arranged in the annular section of the kiln body. The efficient and energy-saving magnesite block porous light burning annular kiln is a vertical circular kiln, magnesite with the particle size being 30-100 mm serves as raw materials, the cross section of the magnesite block porous light burning annular kiln is annular, a plurality of internal combustion chambers are arranged in a light burning zone, a plurality of coolers are arranged in a cooling zone, heat is evenly supplied to the internal combustion chambers, finished products are evenly cooled by the coolers, the light burning temperature of the materials is even, and the temperature of combustion-supporting air is high; the product quality is improved, and the fuel consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of light-burning of magnesite blocks, in particular to a high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks. Background Art

[0002] Light-burned magnesia is widely used in the metallurgical, chemical, and building materials industries, and is an irreplaceable auxiliary material for the steel industry. The primary thermal equipment used in my country for producing light-burned magnesia blocks is a conventional vertical kiln. As production scales up, the increased inner diameter of these kilns prevents the flame from reaching the center of the material, leading to a significant kiln wall effect. This results in uneven light-burning temperatures across the kiln's cross-section, uneven product quality, and high energy consumption. Utility Model Content

[0003] (1) Technical problems solved

[0004] In response to the shortcomings of the existing technology, the utility model provides a high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks, which is a vertical circular kiln. The raw material is magnesite with a particle size of 30-100mm, the cross-section is annular, the light-burning zone is equipped with multiple internal combustion chambers, and the cooling area is equipped with several coolers. The internal combustion chambers supply heat evenly, the coolers evenly cool the finished products, the light-burning temperature of the materials is uniform, the combustion-supporting air temperature is high, the product quality is improved, the fuel consumption is reduced, and the above-mentioned technical problems are solved.

[0005] (2) Technical solution

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks, comprising an outer kiln body and an inner kiln body with a refractory lining installed inside, a heat storage material placed at the center of the outer kiln body, and further comprising:

[0007] The vertical feeding barrel is installed in the top center area of the outer kiln body, and the outer kiln body is provided with a smoke exhaust hole connected to the external space on the circumferential surface near the top thereof. The interior of the vertical feeding barrel comprises an inner steel plate barrel and an outer steel plate barrel. An annular section is formed between the outer kiln body and the inner kiln body. The outer kiln body is provided with a plurality of annular array-type internal combustion chambers inside the annular section, and the area between each two internal combustion chambers forms a light burning hole. The interior of the outer kiln body is provided with a plurality of internal combustion chamber flame holes connecting the internal combustion chamber and adjacent light burning holes. The outer kiln body is provided with an internal combustion chamber air inlet at the bottom end of the internal combustion chamber, and the circumferential surface of the outer kiln body is provided with an internal combustion chamber fuel inlet connecting the internal combustion chamber and the external space. The outer kiln body is provided with a finished product cooler at the bottom of the internal combustion chamber air inlet, and the circumferential surface of the outer kiln body is provided with a plurality of finished product cooler air inlet holes connected to the area where the finished product cooler is located, and the finished product cooler is provided with cooling holes for gas flow.

[0008] Preferably, the annular section is composed of an inner kiln body and an outer kiln body, and the annular section is used for filling materials.

[0009] Preferably, the internal combustion chamber is made of refractory materials, and the shape of the internal combustion chamber is a rectangular box structure.

[0010] Preferably, the finished product cooler is made of metal material, and the shape of the finished product cooler is a rectangular box structure.

[0011] Preferably, the outer kiln body is constructed from magnesite with a particle size of 30-100 mm.

[0012] Compared with the existing technology, the utility model provides a high-efficiency and energy-saving magnesite block porous light-burning ring kiln, which has the following beneficial effects:

[0013] The utility model is a vertical circular kiln. The raw material is magnesite with a particle size of 30-100 mm. The cross section is annular. The light burning zone is provided with multiple internal combustion chambers and the cooling zone is provided with multiple coolers. The internal combustion chambers supply heat evenly and the coolers cool the finished products evenly. The light burning temperature of the material is even and the combustion-supporting air temperature is high, thereby improving product quality and reducing fuel consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 For the present invention Figure 1 Cross-section of the middle AA area;

[0016] Figure 3 For the present invention Figure 1 Cross-section of the mid-BB area;

[0017] Figure 4 For the present invention Figure 1 Cross-section of the mid-CC area;

[0018] Figure 5 For the present invention Figure 1 Cross-section of the middle DD area;

[0019] Figure 6 For the present invention Figure 1 Cross-section of the middle EE area;

[0020] Figure 7 For the present invention Figure 1 Cross-sectional view of the middle FF part.

[0021] Among them: 1. Vertical charging barrel; 2. Smoke exhaust hole; 3. Annular section; 4. Internal combustion chamber flame hole; 5. Internal combustion chamber; 6. Internal combustion chamber air inlet hole; 7. Internal combustion chamber fuel inlet; 8. Finished product cooler; 9. Finished product cooler air inlet hole; 10. Light burning hole; 11. Cooling hole; 12. Outer kiln body; 13. Heat storage material; 14. Inner kiln body; 15. Inner steel plate barrel; 16. Outer steel plate barrel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 7 , a high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks, comprising an outer kiln body 12 and an inner kiln body 14 with a refractory lining installed inside, and a heat storage material 13 placed at the center of the outer kiln body 12, the outer kiln body 12 and the inner kiln body 14 are made of magnesite with a particle size of 30-100mm as raw material, and also include a vertical feeding barrel 1, the vertical feeding barrel 1 is installed in the central area of the top of the outer kiln body 12 and the inner kiln body 14, the outer kiln body 12 is provided with a smoke exhaust hole 2 connected to the outside space on the circumferential surface near the top thereof, the interior of the vertical feeding barrel 1 includes an inner steel plate barrel 15 and an outer steel plate barrel 16, an annular section 3 is formed between the inner kiln body 12 and the outer kiln body 14, the annular section 3 is filled with magnesite raw material with a particle size of 30-100mm, and the outer kiln body 12 and the inner kiln body 14 are provided with a plurality of annular array-type internal combustion chambers inside the annular section 3. 5. The internal combustion chamber 5 is made of refractory material and has a rectangular box-shaped structure. The area between every two internal combustion chambers 5 constitutes a light burning hole 10. The interior of the outer kiln body 12 is provided with a plurality of internal combustion chamber flame holes 4 connecting the internal combustion chamber 5 and the adjacent light burning holes 10. The outer kiln body 12 is provided with an internal combustion chamber air inlet 6 at the bottom end of the internal combustion chamber 5. The circumferential surface of the outer kiln body 12 is provided with an internal combustion chamber fuel inlet 7 connecting the internal combustion chamber 5 and the external space. The outer kiln body 12 is installed with a finished product cooler 8 at the bottom of the internal combustion chamber air inlet 6. The finished product cooler 8 is made of metal material and has a rectangular box-shaped structure. The circumferential surface of the outer kiln body 12 is provided with a plurality of finished product cooler air inlet holes 9 connecting to the area where the finished product cooler 8 is located. The finished product cooler 8 is provided with a cooling hole 11 for gas flow.

[0024] During use, the material magnesite enters the kiln from the vertical feeding barrel 1, and the exhaust gas is discharged from the kiln through the smoke exhaust hole 2. The material entering the kiln is preheated by the exhaust gas on the annular section 3 and then enters the light burning zone. The high-temperature exhaust gas generated by the internal combustion chamber 5 on the light burning zone is sprayed from the internal combustion chamber flame hole 4 into the light burning hole 10 to lightly burn the material. After light burning, the material becomes a finished product, and the finished product enters the finished product cooling hole 11 in the cooling zone for cooling. The cooled finished product is discharged from the kiln from the lower part of the kiln, and the cooling air enters the finished product cooler 8 from the finished product cooler air inlet 9 to cool the finished product in the cooling hole 11, and the temperature rises after cooling, and then enters the internal combustion chamber 5 through the internal combustion chamber air inlet 6 to assist combustion.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks, comprising an outer kiln body (12) with a refractory lining installed inside and an inner kiln body (14), wherein a heat storage material (13) is placed at the center of the outer kiln body (12), characterized in that: Also includes, A vertical feeding barrel (1) is installed in the top center area of an outer kiln body (12). The outer kiln body (12) is provided with a smoke exhaust hole (2) connected to the outside space on the circumferential surface near the top thereof. The interior of the vertical feeding barrel (1) comprises an inner steel plate barrel (15) and an outer steel plate barrel (16). An annular section (3) is formed between the outer kiln body (12) and the inner kiln body (14). The outer kiln body (12) is provided with a plurality of annular array-type internal combustion chambers (5) located inside the annular section (3). The area between each two of the internal combustion chambers (5) forms a light burning hole (10). The interior of the outer kiln body (12) is provided with a plurality of communicating The outer kiln body (12) is provided with an internal combustion chamber flame-spraying hole (4) of an internal combustion chamber (5) and an adjacent light burning hole (10); the outer kiln body (12) is provided with an internal combustion chamber air inlet hole (6) at the bottom end of the internal combustion chamber (5); the circumferential surface of the outer kiln body (12) is provided with an internal combustion chamber fuel inlet (7) connecting the internal combustion chamber (5) and the external space; the outer kiln body (12) is provided with a finished product cooler (8) at the bottom of the internal combustion chamber air inlet hole (6); the circumferential surface of the outer kiln body (12) is provided with a plurality of finished product cooler air inlet holes (9) connecting to the area where the finished product cooler (8) is located; and the finished product cooler (8) is provided with a cooling hole (11) for gas flow.

2. The high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks according to claim 1, characterized in that: The annular section (3) is composed of an inner kiln body (14) and an outer kiln body (12), and the annular section (3) is used for filling materials.

3. The high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks according to claim 1, characterized in that: The internal combustion chamber (5) is made of refractory materials, and the shape of the internal combustion chamber (5) is a rectangular box structure.

4. The high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks according to claim 1, characterized in that: The finished product cooler (8) is made of metal material, and the shape of the finished product cooler (8) is a rectangular box structure.

5. The high-efficiency and energy-saving porous light-burning ring kiln for magnesite blocks according to claim 1, characterized in that: The outer kiln body (12) is constructed from magnesite with a particle size of 30-100 mm.

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