Coaling method of coke oven and coking auxiliary system

Abstract

The invention relates to a coke oven coal charging method and a coking auxiliary system, a carbonization chamber of a coke oven has a taper along a machine side-coke side direction, the machine side is narrow, and the coke side is wide; when coal is charged into the coke oven, coal is charged into the carbonization chamber from the coke side, and a coal cake has a taper matched with that of the carbonization chamber. Compared with a traditional tamping coke oven slave side coal charging mode, the problems that a coal cake is too thin and the coke strength is unbalanced due to the taper of a carbonization chamber can be effectively solved; the coal charging amount can be increased, the overall strength of coke can be improved, implementation is convenient, and the energy-saving and yield-increasing effects are remarkable.

Description

Technical Field

[0001] The present invention relates to the technical field of coke oven coking, in particular to a coke oven coal charging method and a coke oven auxiliary system. Background Art

[0002] Coke ovens are primarily divided into two types: top-charging and tamping ovens. These two types differ in their structure, process, and applicable coal types. In top-charging ovens, coal is loaded directly from the top of the oven into the carbonization chamber for coking. In tamping ovens, coal is compacted by a tamping machine and then pushed into the carbonization chamber from the side of the oven (the machine side) for coking.

[0003] The operation mode of top-loading coke oven is to load the coal into the carbonization chamber through the coal loading hole by the coal loading car on the top of the furnace. The problem with this method is that there is a lot of dust. A large amount of coal powder enters the chemical product processing system through the gas collection system, which will inevitably cause blockage problems in subsequent processes.

[0004] The operation mode of the ramming coke oven is to use the oven mouth on the coke oven machine side and load the rammed coal cakes from the coke oven machine side into the carbonization chamber through the ramming coal loading car. Considering that the mature coal cakes can be smoothly pushed out from the coke side of the carbonization chamber, the carbonization chambers of all coke ovens are currently designed with a certain taper, that is, the coke side end of the carbonization chamber is 20 to 60 mm wider than the machine side end of the carbonization chamber. Considering the impact of the extreme side load of the furnace wall on the furnace body, the coal cakes loaded on the machine side must be 30 to 50 mm smaller than the width of the oven mouth on the machine side. Figure 1 As shown in the figure, after the briquette is loaded into the carbonization chamber, the distance from the edge of the briquette to the furnace wall differs between the engine side and the coke side. This results in different expansion pressures on the furnace wall during coking, which in turn leads to uneven coke strength throughout the furnace. Furthermore, the narrow engine side loading inlet prevents briquette from being too thick, which limits the amount of coal that can be charged into the coke oven and restricts the development of tamping coking technology. Summary of the Invention

[0005] The present invention provides a coke oven coal loading method and a coke oven auxiliary system, which adopts the method of loading coal from the coke side, and the loaded coal cakes have a taper matching the carbonization chamber; compared with the traditional ramming coke oven coal loading method from the machine side, it can effectively solve the problems of too thin coal cakes and uneven coke strength caused by the taper of the carbonization chamber; it can not only increase the coal loading amount, but also improve the overall strength of the coke, and is easy to implement, with significant energy-saving and production-increasing effects.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A method for charging coal in a coke oven, wherein the carbonization chamber of the coke oven has a taper along the machine side-coke side direction, with the machine side being narrow and the coke side being wide; when the coke oven is charged with coal, the coal is loaded into the carbonization chamber from the coke side, and the coal cake has a taper matching that of the carbonization chamber.

[0008] The coke oven is a stamp-charging coke oven or a top-charging stamp-charging integrated coke oven.

[0009] The coke oven is provided with a raw gas guiding device on the machine side.

[0010] The coal charging vehicle is provided with a coal charging supporting plate.

[0011] The coal charging vehicle is a stamp-charging coal charging and coke blocking machine, a lump-charging coal charging and coke blocking machine, a stamp-charging coal charging vehicle or a lump-charging coal charging vehicle.

[0012] The coal charging into the carbonization chamber is formed by a coal charging forming device, and the coal charging forming device comprises a stamping machine.

[0013] The coal charging is firstly briquetted by a press, and then the briquetted coal is loaded into the carbonization chamber by a lumping device.

[0014] The coke oven auxiliary system comprises a coal charging vehicle and a coal charging forming device arranged on the coke side of the coke oven.

[0015] The coke oven auxiliary system comprises a press and a lumping device arranged on the coke side of the coke oven.

[0016] The coke oven auxiliary system comprises a coke pushing device and a raw gas guiding device arranged on the machine side of the coke oven.

[0017] Compared with the prior art, the beneficial effects of the present application are:

[0018] 1) The coal is charged from the coke side, and the coal cake has a taper matching the carbonization chamber; compared with the traditional method of charging the coal cake with the same width from the machine side, the coal charging amount is effectively increased while the coke pushing is facilitated, which is beneficial to improve the production efficiency and stability of the coke oven.

[0019] 2) The present application makes full use of the taper (the coke side is wide, and the machine side is narrow) of the carbonization chamber, and the coal charging is performed from the coke side, so that the coal charging can smoothly enter the carbonization chamber, the phenomenon of a large amount of smoke due to the contact between the coal charging and the oven wall is avoided, and the phenomenon of coal collapse caused by the scraping of the coal cake on the oven wall is avoided, which improves the environmental protection of the modern coking process.

[0020] 3) The method has the effects of easy implementation, reasonable structure arrangement, convenient equipment maintenance, energy saving and environmental protection, and can ensure the smooth production of the coke oven; it is more suitable for the coke oven with the raw gas guiding device arranged on the machine side, and the raw gas generated during the coal charging is smoothly discharged from the far end of the carbonization chamber, which effectively reduces the phenomenon of smoke. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic view of the traditional coal charging from the machine side.

[0022] Figure 2It is a schematic diagram of coal loading from the coke side according to the present invention.

[0023] Figure 3 It is a layout diagram of the coking auxiliary system described in the present invention.

[0024] In the figure: 1-coal charging car; 2-coal supporting plate; 3-coal charging hole; 4-coke pushing device; 5-carbonization chamber; 6-coal; 7-coal forming device; 8-raw gas outlet device; 9-coal cake. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings:

[0026] like Figure 2 As shown, the present invention provides a method for loading coal into a coke oven, wherein the carbonization chamber 5 of the coke oven has a taper along the machine side-coke side direction, with the machine side being narrow and the coke side being wide; when the coke oven is loaded with coal, the coal is loaded into the carbonization chamber 5 from the coke side, and the coal cake has a taper matching that of the carbonization chamber 5.

[0027] The coke oven is a ramming coke oven or a top-loading ramming integrated coke oven.

[0028] The coke oven is provided with a raw gas outlet device 8 on the machine side.

[0029] Coal is loaded using a coal charging car 1 , which is provided with a coal supporting plate 2 .

[0030] The coal charging vehicle 1 is a tamping coal charging and coking machine, a lumping coal charging and coking machine, a tamping coal charging vehicle or a lumping coal charging vehicle.

[0031] The coal charged into the carbonization chamber 5 is shaped by the coal-in-furnace shaping device 7 , which includes a tamping machine.

[0032] The coal 6 entering the furnace is first pressed into briquettes by a press, and then the pressed coal briquettes are loaded into the carbonization chamber 5 by a briquetting device.

[0033] like Figure 3 As shown, the coking auxiliary system of the present invention includes a coal charging vehicle 1 and a coal forming device 7 arranged on the coke side of the coke oven.

[0034] The coking auxiliary system of the present invention comprises a press and a block stacking device arranged on the coke side of a coke oven.

[0035] In the coking auxiliary system described in the present invention, a coke pushing device 4 and a raw gas outlet device 8 are provided on the machine side of the coking oven.

[0036] The present invention provides a method for loading coal into a coke oven. The method rationally utilizes the allowable strength of the coke oven's extreme side load and loads the incoming coal 6 into the carbonization chamber 5 from the coke side of the coke oven. This effectively increases the amount of coal loaded without changing the existing coke oven's structural dimensions, thereby achieving efficient utilization of the limited space in the carbonization chamber.

[0037] By adopting the method of loading coal from the coke side, the structural characteristics of the carbonization chamber 5, which is wide on the coke side and narrow on the machine side, can be effectively utilized. The coal 6 entering the furnace can enter the carbonization chamber 5 smoothly, avoiding the phenomenon of large amounts of smoke caused by the contact between the coal 6 entering the furnace and the furnace wall of the carbonization chamber 5, and also avoiding the coal collapse caused by the coal cakes scraping against the furnace wall of the carbonization chamber 5.

[0038] The coke oven coal charging method of the present invention is more suitable for coke ovens with the raw gas outlet device 8 arranged on the machine side. The raw gas generated during coal loading can be smoothly discharged from the far end of the carbonization chamber 5, thereby reducing the occurrence of smoke.

[0039] The coking auxiliary system described herein is designed for use with the coke oven coal loading method described herein. It includes a coal loading vehicle 1 (equipped with a coal loading support plate 2), a coal forming device 7, and a raw gas outlet device 8. These can be combined as needed to achieve the desired coking production requirements.

[0040] The coal charging vehicle 1 is used to charge coal on the coke side of the coke oven using the coal supporting plate 2. The coal charging vehicle 1 includes a tamping coal charging block, a block coal charging block, a tamping coal charging vehicle, a block coal charging vehicle, and the like.

[0041] The coal material forming device 7 is preferably a tamping machine, which is used to tamp the coal cakes. Alternatively, a press can be used to briquette the coal material 6 into blocks, and then a briquetting device is used to send the pressed coal blocks into the carbonization chamber for briquetting.

[0042] The present invention is applicable to all ramming coke ovens and top-charging coke ovens, and is applicable not only to newly commissioned coke ovens but also to the renovation of existing coke ovens. It has a wide range of applications, a short renovation period, and significant implementation effects. The original coal charging hole 3 of the top-charging coke oven is used as a smoke guide hole.

[0043] When the method for charging coal in a coke oven according to the present invention is used, the coal cake formed after the coal is charged from the coke side has a taper matching that of the carbonization chamber 5 (e.g. Figure 2 As shown in the figure, compared with the traditional method of loading coal from the side of the machine, the coal loading amount can be increased and the coke pushing is convenient, which is beneficial to improving production efficiency and production stability.

[0044] As a specific embodiment, the coking auxiliary system consists of a coke oven coal charging car 1 (equipped with a coal feeding plate 2) located on the coke side, a coal feeding shaping device 7, and a coke pushing device 4 and a raw gas outlet device 8 located on the machine side. When the coke oven is in normal production, the coal feeding car 1 completes the loading of the coal 6 at the end platform or the intermediate platform through the coal feeding shaping device 7 before loading. The coal feeding car 1 drives to the coke side of the carbonization chamber 5 to be loaded with coal, and uses the coal feeding plate 2 to load the coal 6 into the carbonization chamber 5. During the loading, the raw gas is discharged through the raw gas outlet device 8. After the loading is completed, the coal feeding plate 2 is withdrawn, and the coal feeding car 1 drives away, completing a working cycle.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for charging coal into a coke oven, wherein the carbonization chamber of the coke oven has a taper along the machine side-coke side direction, with the machine side being narrow and the coke side being wide; When the coke oven is charged with coal, the coal is loaded into the carbonization chamber from the coke side, and the coal cake has a taper that matches the carbonization chamber.

2. A method for charging coal to a coke oven according to claim 1, characterized in that: The coke oven is a ramming coke oven or a top-loading ramming integrated coke oven.

3. A method for charging coal to a coke oven according to claim 1, characterized in that: The coking oven is provided with a raw gas outlet device on the machine side.

4. A method for charging coal to a coke oven according to claim 1, characterized in that: Coal is loaded using a coal loading car, which is equipped with a coal support plate.

5. A method for charging coal to a coke oven according to claim 4, characterized in that: The coal charging vehicle for feeding the furnace is a tamping coal charging and coking machine, a lumping coal charging and coking machine, a tamping coal charging vehicle or a lumping coal charging vehicle.

6. A method for charging coal to a coke oven according to claim 1, characterized in that: The coal charged into the carbonization chamber is formed by a coal forming device, which includes a tamping machine.

7. A method for charging coal to a coke oven according to claim 1, characterized in that: The coal entering the furnace is first pressed into blocks by a press, and then the pressed coal blocks are loaded into the carbonization chamber by a block stacking device.

8. A coking auxiliary system for implementing the coking oven coal charging method according to any one of claims 1 to 7, characterized in that: It includes a coal charging vehicle and a coal forming device arranged on the coke side of the coke oven.

9. A coking auxiliary system for implementing the coking oven coal charging method according to any one of claims 1 to 7, characterized in that: It includes a press and a stacking device located on the coke side of the coke oven.

10. A coking auxiliary system according to claim 8 or 9, characterized in that: A coke pushing device and a raw gas outlet device are installed on the machine side of the coke oven.

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