A tamping coking method mixed with biomass

Abstract

The invention discloses a tamping and coking method for blending biomass. The dried biomass raw material is crushed, and the biomass material and the blending coal with a water content greater than 10% are evenly mixed according to 0.25-1% of the mass of the blended coal, and then conventionally The briquettes are rammed into briquettes, and the resulting briquettes are routinely sent to the coking chamber of the coke oven for coking. The invention greatly reduces the phenomenon of peeling and collapse of briquettes in the production process, and effectively improves the operation efficiency of coke oven production. After the coke oven is applied with the present invention, the peeling and collapse rate of coal cakes are reduced from more than 10% to less than 1%. Coke oven production operation coefficient K3 increased from below 30% to over 90%.

Description

technical field

[0001] The invention relates to a tamping coking method mixed with biomass, which belongs to the technical field of coal chemical industry. Background technique

[0002] Bituminous coal is heated to 950-1050°C in the absence of air, and finally supports coke through stages such as drying, pyrolysis, melting, bonding, solidification, and shrinkage. This process is called high-temperature coking. The coke obtained by high temperature coking is used for blast furnace smelting, casting and gasification. The recovered and purified coke oven gas produced in the coking process is not only a fuel with high calorific value, but also an important industrial raw material for organic synthesis. Others such as pure benzene, toluene, xylene, industrial naphthalene and coal tar are also important chemical raw materials.

[0003] At present, high-temperature coking mainly includes the traditional top-loading coke oven coking and the side-loading tamping coking that has bee...

Examples

Embodiment 1

[0034] A, the dried Eupatorium adenophorum is crushed to a length less than 2cm and a diameter less than 0.5cm to obtain biomass materials;

[0035] B. Take the biomass material obtained in step A according to 1% of the blended coal quality, and mix the biomass material with the blended coal with moisture greater than 10% to obtain a mixed material;

[0036] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 5000mm, and the density of the briquettes is 1000kg / m 3 ;

[0037] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0038] Coking time: 23h

[0039] Coke cake center temperature: 1000°C

[0040] Collector pressure: 125pa

[0041] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0042] M...

Embodiment 2

[0055] A. Crushing the dried straw to a length less than 2 cm and a diameter less than 0.5 cm to obtain biomass materials;

[0056] B. Take the biomass material obtained in step A according to 0.5% of the blended coal quality, and mix the biomass material with the blended coal with moisture greater than 10% to obtain a mixed material;

[0057] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 4800mm, and the density of the briquettes is 1000kg / m 3 ;

[0058] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0059] Coking time: 23h

[0060] Coke cake center temperature: 1000°C

[0061] Collector pressure: 125pa

[0062] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0063] Maximum expansion ...

Embodiment 3

[0076] A, the dry corn stalk is crushed to less than 2cm in length and less than 0.5cm in diameter to obtain biomass material;

[0077] B. Take the biomass material obtained in step A according to 0.25% of the blended coal quality, mix the biomass material with the blended coal with moisture greater than 10%, and obtain the mixed material;

[0078] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 5200mm, and the density of the briquettes is 1000kg / m 3 ;

[0079] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0080] Coking time: 23h

[0081] Coke cake center temperature: 1000°C

[0082] Collector pressure: 125pa

[0083] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0084] Maximum exp...

technical field

[0001] The invention relates to a tamping coking method mixed with biomass, which belongs to the technical field of coal chemical industry. Background technique

[0002] Bituminous coal is heated to 950-1050°C in the absence of air, and finally supports coke through stages such as drying, pyrolysis, melting, bonding, solidification, and shrinkage. This process is called high-temperature coking. The coke obtained by high temperature coking is used for blast furnace smelting, casting and gasification. The recovered and purified coke oven gas produced in the coking process is not only a fuel with high calorific value, but also an important industrial raw material for organic synthesis. Others such as pure benzene, toluene, xylene, industrial naphthalene and coal tar are also important chemical raw materials.

[0003] At present, high-temperature coking mainly includes the traditional top-loading coke oven coking and the side-loading tamping coking that has bee...

Examples

Embodiment 1

[0034] A, the dried Eupatorium adenophorum is crushed to a length less than 2cm and a diameter less than 0.5cm to obtain biomass materials;

[0035] B. Take the biomass material obtained in step A according to 1% of the blended coal quality, and mix the biomass material with the blended coal with moisture greater than 10% to obtain a mixed material;

[0036] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 5000mm, and the density of the briquettes is 1000kg / m 3 ;

[0037] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0038] Coking time: 23h

[0039] Coke cake center temperature: 1000°C

[0040] Collector pressure: 125pa

[0041] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0042] M...

Embodiment 2

[0055] A. Crushing the dried straw to a length less than 2 cm and a diameter less than 0.5 cm to obtain biomass materials;

[0056] B. Take the biomass material obtained in step A according to 0.5% of the blended coal quality, and mix the biomass material with the blended coal with moisture greater than 10% to obtain a mixed material;

[0057] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 4800mm, and the density of the briquettes is 1000kg / m 3 ;

[0058] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0059] Coking time: 23h

[0060] Coke cake center temperature: 1000°C

[0061] Collector pressure: 125pa

[0062] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0063] Maximum expansion ...

Embodiment 3

[0076] A, the dry corn stalk is crushed to less than 2cm in length and less than 0.5cm in diameter to obtain biomass material;

[0077] B. Take the biomass material obtained in step A according to 0.25% of the blended coal quality, mix the biomass material with the blended coal with moisture greater than 10%, and obtain the mixed material;

[0078] C, the mixed material of step B is tamped into briquettes on the coal loading car according to conventional production operation procedures and methods; the size of the briquettes is 13250 × 440 × 5200mm, and the density of the briquettes is 1000kg / m 3 ;

[0079] D, the briquette obtained in step C is sent into the coke oven carbonization chamber by the coal loading car, and coking is carried out under the following conditions:

[0080] Coking time: 23h

[0081] Coke cake center temperature: 1000°C

[0082] Collector pressure: 125pa

[0083] Bottom pressure of carbonization chamber at the end of coking: 5pa

[0084] Maximum exp...