Method for preparing ecological active residues by treating electrolytic manganese residues by using tunnel kiln device

Abstract

The invention relates to a method for preparing ecological active residues by treating electrolytic manganese residues by using a tunnel kiln device. The method comprises the following steps: (1) blending and homogenizing: blending 45-75 parts of electrolytic manganese residues, 8-25 parts of stone coal, 14.7-45.0 parts of waste rock residues and 0.3-2.0 parts of an alteration agent, grinding the mixture into powder, adding 5-15 parts of water, and uniformly and homogenizing the mixture to a plastified material; (2) molding: molding the plastified material to a rod-like or bulk-like molded material; and (3) calcining the tunnel kiln: sending the molded material in the tunnel kiln, calcining the molded material for 20-60 minutes at 980-1300 DEG C, and quenching the molded material to obtain the ecological active residues. The ecological active residues contain various hydrated active minerals, can be widely used for cement industry, is high in strength if being used, and is easy to slurry and high in strength if being used as masonry cement or cement making bricks. The method provided by the invention is low in investment, free of wastewater and waste residues and good in economical benefit.

Description

technical field

[0001] The invention relates to a method for preparing ecologically active slag by using electrolytic manganese slag, in particular to a method for preparing ecologically active slag by using tunnel kiln equipment to process electrolytic manganese slag. Background technique

[0002] my country is the world's largest manganese industry country, with pure manganese output accounting for more than 95% of the world's total. The waste slag discharged during the manganese industry processing is manganese slag, including "manganese slag" and "manganese slag". Manganese slag is a kind of water-quenched blast furnace slag formed by water-quenching high-temperature slag discharged during the smelting process of ferromanganese alloy or silicon-manganese alloy. One ton of ferromanganese alloy can produce 2 to 2.5 tons of manganese slag, and its activity is only Blast furnace slag inferior to pig iron smelting, superior to low-calcium fly ash, can be directly used as ceme...

Examples

Embodiment 1

[0054] The tunnel kiln production line process equipment of a shale brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0055] (1) Batching and homogenization: stone coal (calorific value 1210kcal / kg), muddy waste rock chips, and partially agglomerated electrolytic manganese slag that has been stored and aged are all crushed to a particle size of <35mm, in parts by weight, 50 parts of electrolytic manganese slag, 15 parts of stone coal, 34.5 parts of mud-containing waste rock chips and 0.5 parts of ZC-S1 alteration agent are batched by computer, and continuously sent to the Raymond mill system, and mixed and ground to make a sieve quality of 80 μm 26% powder, then add 11 parts of water, mix and homogenize into a plastic material;

[0056] (2) Forming: The plastic material obtained in step (1) is formed into a porous brick-like material by a brick-making machine, and dried naturally;

[0057] (...

Embodiment 2

[0065] The tunnel kiln production line process equipment of a refractory brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0066] (1) Batching and homogenization: crush stone coal (calorific value 1530kcal / kg) and dry-process acetylene carbide slag to a particle size <35mm, and mix 71 parts by weight of granular electrolytic manganese slag (particle size <10mm ), 8.5 parts of stone coal, 20 parts of dry-process acetylene carbide slag and 0.5 part of ZC-S1 alteration agent are mixed by computer, and are continuously sent to the Raymond mill system, and mixed and ground to make 80 μm sieve quality of 18% powder material, then add 13 parts of water, and homogenize into a plastic material through mixing;

[0067] (2) Forming: The plastic material obtained in step (1) is formed into a brick-shaped material by a brick forming machine, and dried naturally;

[0068] (3) Tunnel kiln calcination: send...

Embodiment 3

[0075] The tunnel kiln production line process equipment of a refractory brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0076] (1) Batching and homogenization: crush the agglomerated wet-process acetylene carbide slag to a particle size <35mm, and mix 18 parts of ridged dewatered municipal sludge (calorific value 1875kcal / kg), 21.5 parts of wet Acetylene carbide slag and 0.5 parts of ZC-S7 alteration agent are used for the first-stage computer batching, and mixed and ground to make a powder with 80 μm sieve quality of 25%, and then the obtained powder is mixed with 60 parts of water-containing primary electrolytic manganese The slag (moisture content 30.8wt%, particle size <1mm) is batched by the second-stage computer, and sent to the rolling device to be homogenized into plastic materials;

[0077] (2) Forming: The plastic material obtained in step (1) is formed into a brick-shaped materi...

technical field

[0001] The invention relates to a method for preparing ecologically active slag by using electrolytic manganese slag, in particular to a method for preparing ecologically active slag by using tunnel kiln equipment to process electrolytic manganese slag. Background technique

[0002] my country is the world's largest manganese industry country, with pure manganese output accounting for more than 95% of the world's total. The waste slag discharged during the manganese industry processing is manganese slag, including "manganese slag" and "manganese slag". Manganese slag is a kind of water-quenched blast furnace slag formed by water-quenching high-temperature slag discharged during the smelting process of ferromanganese alloy or silicon-manganese alloy. One ton of ferromanganese alloy can produce 2 to 2.5 tons of manganese slag, and its activity is only Blast furnace slag inferior to pig iron smelting, superior to low-calcium fly ash, can be directly used as ceme...

Examples

Embodiment 1

[0054] The tunnel kiln production line process equipment of a shale brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0055] (1) Batching and homogenization: stone coal (calorific value 1210kcal / kg), muddy waste rock chips, and partially agglomerated electrolytic manganese slag that has been stored and aged are all crushed to a particle size of <35mm, in parts by weight, 50 parts of electrolytic manganese slag, 15 parts of stone coal, 34.5 parts of mud-containing waste rock chips and 0.5 parts of ZC-S1 alteration agent are batched by computer, and continuously sent to the Raymond mill system, and mixed and ground to make a sieve quality of 80 μm 26% powder, then add 11 parts of water, mix and homogenize into a plastic material;

[0056] (2) Forming: The plastic material obtained in step (1) is formed into a porous brick-like material by a brick-making machine, and dried naturally;

[0057] (...

Embodiment 2

[0065] The tunnel kiln production line process equipment of a refractory brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0066] (1) Batching and homogenization: crush stone coal (calorific value 1530kcal / kg) and dry-process acetylene carbide slag to a particle size <35mm, and mix 71 parts by weight of granular electrolytic manganese slag (particle size <10mm ), 8.5 parts of stone coal, 20 parts of dry-process acetylene carbide slag and 0.5 part of ZC-S1 alteration agent are mixed by computer, and are continuously sent to the Raymond mill system, and mixed and ground to make 80 μm sieve quality of 18% powder material, then add 13 parts of water, and homogenize into a plastic material through mixing;

[0067] (2) Forming: The plastic material obtained in step (1) is formed into a brick-shaped material by a brick forming machine, and dried naturally;

[0068] (3) Tunnel kiln calcination: send...

Embodiment 3

[0075] The tunnel kiln production line process equipment of a refractory brick factory is used to process electrolytic manganese slag to produce ecologically active slag and ecologically active slag powder:

[0076] (1) Batching and homogenization: crush the agglomerated wet-process acetylene carbide slag to a particle size <35mm, and mix 18 parts of ridged dewatered municipal sludge (calorific value 1875kcal / kg), 21.5 parts of wet Acetylene carbide slag and 0.5 parts of ZC-S7 alteration agent are used for the first-stage computer batching, and mixed and ground to make a powder with 80 μm sieve quality of 25%, and then the obtained powder is mixed with 60 parts of water-containing primary electrolytic manganese The slag (moisture content 30.8wt%, particle size <1mm) is batched by the second-stage computer, and sent to the rolling device to be homogenized into plastic materials;

[0077] (2) Forming: The plastic material obtained in step (1) is formed into a brick-shaped materi...