Sintering material surface edge heat supplementing device

Abstract

The utility model relates to the field of sintering equipment, in particular to a sintering material surface edge heat supplementing device which comprises a sintering trolley body, stand columns are symmetrically installed on the two sides of the sintering trolley body, installation beams are symmetrically and fixedly connected between the two sets of stand columns, and a plurality of sets of igniters arranged at equal intervals are fixedly installed on the surfaces of the installation beams. The mixed materials of the sintering pallet are fully sintered through the igniters and the heat compensation burners on the two sides which are arranged in a staggered mode, heat is supplemented to the two sides of a sintered cake, the high-temperature maintaining time of the recrystallization process of the two sides is prolonged, the quality of edge sintered ore is greatly improved, and the sintering quality of the sintering pallet is improved. And heat loss can be reduced through the first heat preservation plate and the second heat preservation plate, the heat efficiency of the ignition furnace is improved, gas consumption is reduced, and the energy-saving and environment-friendly effects are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering equipment, in particular to a sintering material surface edge heat supplement device. Background Art

[0002] Sintering is an important part of the ore preparation process in the metallurgical industry, especially in steel smelting. It is also one of the key operations that affects the energy consumption indicators of the entire smelting process. Usually, a sintering ignition furnace has multiple rows of ignition nozzles, and each row of ignition nozzles is arranged in parallel, and the distance between each ignition nozzle in a row of ignition nozzles is equal. However, due to the gap between the sintering material and the trolley railing at the edge of the sintering machine, the resistance to air inlet on both sides of the sintering machine trolley is smaller than that in the middle area, resulting in the vertical sintering speed of the sintering material being greater the closer to the edge of the sintering machine, which is the edge effect of the sintering machine. The edge effect causes serious ignition heat loss on the material surface on both sides of the sintering machine. When the sintering material in the center area of ​​the sintering machine meets the normal ignition heating requirements, the sintering material on both sides of the sintering machine may have insufficient ignition heat supply, resulting in incomplete ignition of the solid fuel on both sides of the sintering machine, or even the solid fuel is not ignited, resulting in poor quality of sintered ore on both sides. Utility Model Content

[0003] (1) Technical issues to be resolved

[0004] In order to solve the problem in the prior art that the sintering materials on both sides of the sintering machine may have insufficient ignition heat supply, resulting in incomplete ignition of solid fuel on both sides of the sintering machine, or even the solid fuel is not ignited, resulting in poor quality of sintered ore on both sides.

[0005] (2) Technical solution

[0006] The technical solution of the utility model is: a sintering material surface edge heat supplement device, including a sintering trolley body, columns are symmetrically installed on both sides of the sintering trolley body, a mounting beam is symmetrically fixedly connected between the two groups of columns, a plurality of groups of igniters arranged at equal distances are fixedly installed on the surface of the mounting beam, and a heat supplement burner with an L-shaped structure is symmetrically installed on the surface of the mounting beam located at the rear side.

[0007] Preferably, the top of each igniter is fixedly connected to a gas branch pipe, and the tops of multiple groups of gas branch pipes are connected to a gas main pipe, which is installed between the two groups of columns.

[0008] Preferably, the sides of the igniter are fixedly connected with combustion-supporting air branches, and the top ends of the multiple groups of combustion-supporting air branches are connected with combustion-supporting air pipelines, which are installed between the two groups of columns.

[0009] Preferably, there is a gap between the installation of adjacent igniters, and the igniter located on the front side and the igniter located on the rear side are installed alternately in a herringbone structure.

[0010] Preferably, a burner with a trumpet-shaped structure is fixedly mounted on the bottom end of the igniter.

[0011] Preferably, a first insulation plate is fixedly connected to the top of the igniter, a second insulation plate is arranged around the igniter, and the second insulation plate is installed on the bottom surface of the first insulation plate.

[0012] (3) Beneficial effects

[0013] Compared with the existing technology, the beneficial effects of the present invention are: the sintering trolley mixture is fully sintered through the staggered igniters and the heat-supplying nozzles on both sides, and heat is supplemented on both sides of the sintered cake, thereby improving the high-temperature holding time of the recrystallization process on both sides, greatly improving the quality of the edge sintered ore, and reducing the return rate of the sintered ore. The first insulation plate and the second insulation plate can reduce heat loss, thereby improving the thermal efficiency of the ignition furnace, reducing gas consumption, and achieving energy-saving and environmental protection effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 Shown is a schematic diagram of the structure of the heat-replenishing burner in the present invention;

[0016] Figure 3 Shown is a schematic diagram of the structure of the igniter and mounting beam in the utility model;

[0017] Figure 4 Shown is a schematic diagram of the structure of the gas branch pipe and the combustion air branch pipe in the utility model;

[0018] Figure 5 Shown is a cross-sectional view of the burner in the present invention.

[0019] Explanation of the accompanying numbers: 1-sintering trolley body, 2-column, 3-igniter, 4-combustion-supporting air pipeline, 5-gas main, 6-first insulation board, 7-mounting beam, 8-heating burner, 9-gas branch pipe, 10-combustion-supporting air branch pipe, 11-burner, 12-second insulation board. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1:

[0022] See Figure 1-5The utility model provides an embodiment: it includes a sintering trolley body 1, and columns 2 are symmetrically installed on both sides of the sintering trolley body 1, and a mounting beam 7 is symmetrically fixedly connected between the two groups of columns 2. A plurality of groups of igniters 3 arranged at equal distances are fixedly installed on the surface of the mounting beam 7, and a surface of the mounting beam 7 on the rear side is symmetrically installed with an L-shaped heat supplementary burner 8. After the sintering trolley mixture is sintered by the igniter 3 on the front side, the two groups of heat supplementary burners 8 on the rear side burn gas to perform large-area heat supplementary heating on the material surface on both sides of the sintered cake, thereby extending the high-temperature heating time of the recrystallization process of the edge of the sintering surface, improving the comprehensive particle size of the sintered ore and reducing the return rate.

[0023] The top of each igniter 3 is fixedly connected to a gas branch pipe 9, and the tops of multiple groups of gas branch pipes 9 are connected to a gas main pipe 5, which is installed between the two groups of columns 2. The sides of each igniter 3 are fixedly connected to a combustion-supporting air branch pipe 10, and the tops of multiple groups of combustion-supporting air branch pipes 10 are connected to a combustion-supporting air pipeline 4, which is installed between the two groups of columns 2. Through the multiple groups of gas branch pipes 9 connected to the gas main pipe 5, the gas in the gas main pipe 5 is conveniently dispersed and transported to the inside of the igniter 3. Through the multiple groups of combustion-supporting air branch pipes 10 connected to the combustion-supporting air pipeline 4, the combustion-supporting air pipeline 4 is conveniently dispersed and transported to the inside of the igniter 3. The combustion air branch pipe 10 facilitates the dispersed delivery of the combustion air in the combustion air branch pipe 10 to the interior of the igniter 3; there is a gap between the installation of adjacent igniters 3, and the igniter 3 located on the front side and the igniter 3 located on the rear side are staggeredly installed in a herringbone structure in sequence. Through the staggered sintering of the igniters 3 on the front and rear sides, the edges of both sides of each group of igniters 3 can be fully sintered, thereby improving the quality of sintered ore and reducing the return rate of ore; a trumpet-shaped burner 11 is fixedly installed at the bottom end of the igniter 3, and the trumpet-shaped design is conducive to the mixed combustion of gas and combustion air.

[0024] Example 2:

[0025] See also Figure 1-5 In this embodiment, the top of the igniter 3 is fixedly connected to the first insulation board 6, and a second insulation board 12 is arranged around the igniter 3, and the second insulation board 12 is installed on the bottom surface of the first insulation board 6. By arranging the first insulation board 6 and the second insulation board 12, heat loss can be reduced, thereby improving the thermal efficiency of the ignition furnace, and the first insulation board 6 located around is composed of multiple groups of composite rock wool insulation boards, which is convenient for replacing or installing the first insulation board 6.

[0026] Through the above steps, the mixture of the sintering trolley is fully sintered by the staggered igniters 3 and the heat-supplying burners 8 on both sides, and heat is supplemented on both sides of the sintered cake, thereby improving the high-temperature holding time of the recrystallization process on both sides, greatly improving the quality of the edge sintered ore, and reducing the return rate of the sintered ore. The first insulation plate 6 and the second insulation plate 12 can reduce heat loss, improve the thermal efficiency of the ignition furnace, reduce gas consumption, and achieve energy-saving and environmental protection effects.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present invention.

Claims

1. A sintering material surface edge heat supplement device, comprising a sintering trolley body (1), characterized in that: Columns (2) are symmetrically mounted on both sides of the sintering trolley body (1); a mounting beam (7) is symmetrically fixedly connected between the two groups of columns (2); a plurality of groups of igniters (3) arranged at equal distances are fixedly mounted on the surface of the mounting beam (7); and a heating nozzle (8) with an L-shaped structure is symmetrically mounted on the surface of the mounting beam (7) located at the rear side.

2. The sintering material surface edge heater according to claim 1, characterized in that: The top ends of the igniters (3) are fixedly connected to gas branch pipes (9), and the top ends of multiple groups of gas branch pipes (9) are connected to a gas main pipe (5), and the gas main pipe (5) is installed between two groups of columns (2).

3. The sintering material surface edge heater according to claim 2, characterized in that: The sides of the igniter (3) are fixedly connected to combustion air branches (10), and the top ends of multiple groups of the combustion air branches (10) are connected to combustion air pipelines (4), and the combustion air pipelines (4) are installed between two groups of the columns (2).

4. The sintering material surface edge heater according to claim 1, characterized in that: There is a gap between the installation of adjacent igniters (3), and the igniters (3) located on the front side and the igniters (3) located on the rear side are installed in a staggered manner in a herringbone structure.

5. The sintering material surface edge heater according to claim 1, characterized in that: A burner (11) with a trumpet-shaped structure is fixedly mounted on the bottom end of the igniter (3).

6. The sintering material surface edge heater according to claim 1, characterized in that: The top end of the igniter (3) is fixedly connected to a first heat-insulating plate (6), a second heat-insulating plate (12) is arranged around the igniter (3), and the second heat-insulating plate (12) is installed on the bottom surface of the first heat-insulating plate (6).

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