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System and method for roasting siderite

A siderite and roasting technology, applied in the field of smelting, can solve the problems of workers' physical injury and environmental pollution, and achieve the effect of reducing physical injury and pollution

Active Publication Date: 2013-04-03
赫章县黎明矿业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in this traditional system for roasting siderite, high-sulfur and high-ash common bituminous coal is used in the ignition device for combustion. Due to the high sulfur content of bituminous coal, a large amount of toxic gases such as sulfides are produced during combustion, which seriously affects the surrounding environment. Pollution, but also cause great harm to workers' health

Method used

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  • System and method for roasting siderite
  • System and method for roasting siderite
  • System and method for roasting siderite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Embodiment 1 of the present invention provides a kind of system of roasting siderite, see figure 1 , the system consists of:

[0050] A belt sintering machine, the belt sintering machine includes an ignition device 1 and a bucket car 2 for transporting siderite, the bottom of the ignition device 1 has a flame outlet 3, and the ignition device 1 is located at the bottom of the bucket truck 2 Above, there is a space between the bucket car 2;

[0051] The system also includes: a gas supply device 4, an air supply device 5, and a mixing device 6; the gas supply device 4 is connected to the mixing device 6, the air supply device 5 is connected to the mixing device 6, and the mixing device means 6 connected to said ignition means 1;

[0052] The gas supply device is used to deliver gas to the mixing device;

[0053] said air supply means for delivering air into said mixing means;

[0054] The mixing device is used to mix the coal gas sent by the gas supply device and the ...

Embodiment 2

[0059] Embodiment 2 of the present invention provides another system for roasting siderite, see figure 2 , the system consists of:

[0060] A belt-type sintering machine, the belt-type sintering machine includes an ignition device 1 and a bucket car 2 for transporting siderite, the bottom of the ignition device 1 has evenly distributed flame ports 3, and the ignition device 1 is located in the bucket There is a distance of 20 centimeters between the top of the car 2 and the bucket car 2;

[0061] The system also includes: a gas generating component 7, a first delivery pipeline formed by connecting the first delivery branch pipe 8 and the second delivery branch pipe 9, a blower 10, and a second delivery pipeline 11; wherein, the gas production component 7 and the first delivery branch pipe 8 are connected, and the air outlet of the blower 10 is connected with the second conveying pipeline 11;

[0062] Wherein, the coal gas generating component 7 is connected with the first d...

Embodiment 1

[0078] For embodiment one, embodiment three of the present invention provides a kind of method for roasting siderite, see Figure 4 , the method includes:

[0079] Step S101: delivering gas to the mixing device through the gas supply device, and delivering air to the mixing device through the air supply device;

[0080] Step S102: the gas and air are mixed in the mixing device, and the mixed gas is sent to the ignition device of the belt sintering machine for combustion;

[0081] Wherein, in the mixed gas, the proportion of coal gas is 1 / 3-1 / 2; preferably, in the mixed gas, the proportion of coal gas is 1 / 2, that is, coal gas and The ratio of air is 1:1;

[0082] Step S103: The flame generated by combustion is sprayed to the siderite cart of the belt sintering machine through the flame nozzle at the bottom of the ignition device, so as to roast the siderite in the cart.

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Abstract

The invention belongs to the smelting field, and in particular relates to a system and method for roasting siderite. Coal gas replaces common soft coal and is used as a fuel for roasting siderite. As the principal components of the coal gas are carbon monoxide and hydrogen, harmful gases such as sulfide are not generated in the roasting process, so that the environmental pollution can be reduced. The system comprises a belt sintering machine which comprises an ignition device and a trolley for conveying siderite. A fire spraying nozzle is arranged at the bottom of the ignition device which is located above the trolley. A gap is reserved between the ignition device and the trolley. The system further comprises a coal gas supplying device, an air supplying device and a mixing device. The coal gas supplying device is connected with the mixing device, the air supplying device is connected with the mixing device, and the mixing device is connected to the ignition device.

Description

technical field [0001] The invention relates to the field of smelting, in particular to a system and method for roasting siderite. Background technique [0002] In the traditional siderite roasting system, the siderite is placed in the furnace of the sintering device, and an ignition device connected to the furnace is installed on the outer wall of the sintering device; wherein, ordinary bituminous coal with high sulfur and high ash content is placed in the ignition device Combustion is carried out, and then the flame generated by the bituminous coal combustion is blown into the furnace through the ignition device through the blast device, thereby roasting the siderite in the furnace. [0003] However, in this traditional system for roasting siderite, high-sulfur and high-ash common bituminous coal is used in the ignition device for combustion. Due to the high sulfur content of bituminous coal, a large amount of toxic gases such as sulfides are produced during combustion, wh...

Claims

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Application Information

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IPC IPC(8): C22B1/02C22B1/212
Inventor 陈小众
Owner 赫章县黎明矿业有限公司
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