Device and method for preparing hot fuel gas for glass kiln with anthracite

A glass kiln and fuel gas technology, applied in the field of coal gas production, can solve the problems of small gas production, large pollution, low energy utilization rate, etc., and achieve the effects of reduced design scale, high energy utilization rate, and reduced wastewater treatment difficulty

Inactive Publication Date: 2017-09-26
SHANXI JINMEI GRP TECH RESEACH INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a device and method for preparing hot fuel gas for glass kiln using anthracite to solve the technical problems of low gas production, large pollution, and low energy utilization rate of the existing normal-pressure fixed-bed gas-making furnace used in glass kiln

Method used

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  • Device and method for preparing hot fuel gas for glass kiln with anthracite

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The particle size is 6~50 mm, the as received basis ash content is 12~14%, the as received basis fixed carbon content is 71~73%, the as received basis volatile matter content is 6~8%, the as received basis total sulfur content is less than 0.5%, Softening temperature T 2 Anthracite with a temperature greater than 1500 °C, a crushing strength greater than 96%, and a thermal stability greater than 95% is fed into the gasifier 5 through the raw coal bunker 3 and the coal lock hopper 4. 15.09 t / h.

[0033] Gasification agent oxygen 6900 Nm 3 / h (99.6%, 2.6 MPa) and steam 25.5t / h (270 ℃, 2.6 MPa), after mixing, enter the gasifier for redox reaction.

[0034] The heat production fuel gas volume of a single furnace is 35472 Nm 3 / h, pressure 2.5 MPa, temperature 520 °C, after dust removal by cyclone dust collector and dry dust collector (dust content is less than 5 mg / m³, pressure 2.45 MPa, temperature 500 °C), the pressure is adjusted to the required range, and sent to Us...

Embodiment 2

[0036] The particle size is 6-50 mm, the as-received ash content is 21-22%, the as-received fixed carbon content is 71-73%, the as-received volatile content is 6%, the as-received total sulfur content is less than 0.5%, and the softening temperature T 2 Anthracite with a temperature greater than 1500 °C, a crushing strength greater than 96%, and a thermal stability greater than 95% was fed into the gasifier through a coal bunker and a coal lock. The pressure of the gasifier was 4.0 MPa, and the coal input to a single furnace was 19 t / h.

[0037] Gasification agent oxygen 6400 Nm 3 / h (99.6%, 4.8 MPa) and steam 24.4 t / h (460 ℃, 4.8 MPa), after mixing, enter the gasifier for redox reaction.

[0038] The heat production fuel gas volume of a single furnace is 38000 Nm 3 / h, pressure 4.0 MPa, temperature 550 ℃, after dust removal by cyclone dust collector and dry dust collector (dust content is less than 5 mg / m³, pressure 3.9 MPa, temperature 520 ℃), the pressure is adjusted to t...

Embodiment 3

[0040] The particle size is 6-50 mm, the as-received ash content is 21-22%, the as-received fixed carbon content is 71-73%, the as-received volatile content is 6%, the as-received total sulfur content is less than 0.5%, and the softening temperature T 2 Anthracite with a temperature greater than 1500 °C, a crushing strength greater than 96%, and a thermal stability greater than 95% is fed into the gasifier through a coal bunker and a coal lock. The pressure of the gasifier is 4.5 MPa, and the coal input to a single furnace is 19.2 t / h.

[0041] Gasification agent oxygen 6400 Nm 3 / h (99.6%, 4.8 MPa) and steam 24.4 t / h (460 ℃, 4.8 MPa), after mixing, enter the gasifier for redox reaction.

[0042] The heat production fuel gas volume of a single furnace is 38400 Nm 3 / h, pressure 4.0 MPa, temperature 550 ℃, after dust removal by cyclone dust collector and dry dust collector (dust content is less than 5 mg / m³, pressure 3.9 MPa, temperature 520 ℃), the pressure is adjusted to th...

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Abstract

The invention relates to the field of coal gas and particularly relates to a device and a method for preparing a hot fuel gas for a glass kiln with anthracite. The method in the adopted technical scheme comprises the following steps: adding the anthracite with the grain size of 6-50 mm into a material supply lock hopper from a material coal bin, then entering a gasifier, mixing oxygen and steam from an oxygen generating plant, enabling the oxygen and the steam to enter from the bottom part of the gasifier and exchange heat with an ash layer at the lower part, enabling the oxygen to produce a strong redox reaction with a coal layer at the middle part, exchanging heat with the coal layer at the upper part, producing the hot fuel gas, enabling the hot fuel gas to flow out from the upper part of the gasifier, removing large-particle coal ash impurities in a cyclone separator, then entering a dry type dust collector, removing dust from the fuel gas, regulating the pressure to the required range, and feeding the fuel gas to the glass kiln for user. The prepared hot fuel gas can directly enter the glass kiln without the steps of washing, cooling, removing dust, desulfurizing and purifying, and treating sewage, the operation flow is simple, the energy is reasonably utilized, and the method is clean and environmentally friendly.

Description

technical field [0001] The invention relates to the field of coal gas production, in particular to a device and method for preparing hot fuel gas for glass kilns using anthracite. Background technique [0002] There are two main sources of fuel gas currently used in the glass furnace industry: natural gas and artificial gas. The price of natural gas is high, gas supply is unstable, and artificial gas is produced by atmospheric fixed bed, which has problems such as low production capacity, excessive dispersion, low heat utilization rate, and serious pollution. With the increasingly stringent national environmental protection policies, in order to solve the problems of low production capacity, scattered layout, environmental pollution, and increasingly serious smog existing in existing gasification technologies, an efficient and low-pollution gas supply solution is urgently needed to meet market transformation needs , to produce efficient and clean energy to replace the exist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/84C10J3/60
CPCC10J3/20C10J3/60C10J3/84C10J2300/093C10J2300/0959C10J2300/1603
Inventor 李金洲楚可嘉
Owner SHANXI JINMEI GRP TECH RESEACH INST
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