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Papermaking solid waste incineration proportioning process

A solid waste and process technology, applied in the field of papermaking environmental protection, can solve problems such as environmental pollution

Inactive Publication Date: 2016-12-14
SHANDONG HUATAI PAPER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ink contains a large amount of heavy metal elements, which is easy to cause great pollution to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A papermaking solid waste incineration proportioning process. The deinking sludge, water treatment sludge and drum waste are evenly mixed according to the mass ratio of 63.0:26.0:11.0, and placed in a 130T / H high and low differential speed circulating fluidized bed boiler incinerates mixed papermaking solid waste. The main operating parameters of the incineration process are:

[0021] Main steam pressure: 5.29MPa

[0022] Main steam temperature: 450°C

[0023] Feed water temperature: 150°C

[0024] Superheater outlet pressure at rated load: 5.29MPa(g)

[0025] Main steam temperature maintains normal load range: 70-110%

[0026] Furnace outlet smoke temperature (rated output): 887.6°C

[0027] Boiler excess air coefficient (rated output): Furnace outlet / 1.24

[0028] Air volume at air preheater inlet: 19.18kg / s.

[0029] The content of heavy metal ions in fly ash is 1.35mg / L.

Embodiment 2

[0031] A papermaking solid waste incineration proportioning process, the deinking sludge, water treatment sludge and drum waste residue are evenly mixed according to the mass ratio of 64.5:25.5:10.0, and placed in a 130T / H high and low differential speed circulating fluidized bed boiler incinerates mixed papermaking solid waste. The main operating parameters of the incineration process are:

[0032] Main steam pressure: 5.29MPa

[0033] Main steam temperature: 450°C

[0034] Feed water temperature: 150°C

[0035] Superheater outlet pressure at rated load: 5.29MPa(g)

[0036] Main steam temperature maintains normal load range: 70-110%

[0037] Furnace outlet smoke temperature (rated output): 887.6°C

[0038] Boiler excess air coefficient (rated output): Furnace outlet / 1.24

[0039] Air volume at air preheater inlet: 19.18kg / s.

[0040] The content of heavy metal ions in fly ash was 1.42mg / L.

Embodiment 3

[0042] A papermaking solid waste incineration proportioning process. The deinking sludge, water treatment sludge and drum waste are evenly mixed according to the mass ratio of 68.5:22.5:9.0, and placed in a 130T / H high and low differential speed circulating fluidized bed boiler incinerates mixed papermaking solid waste. The main operating parameters of the incineration process are:

[0043] Main steam pressure: 5.29MPa

[0044] Main steam temperature: 450°C

[0045] Feed water temperature: 150°C

[0046] Superheater outlet pressure at rated load: 5.29MPa(g)

[0047] Main steam temperature maintains normal load range: 70-110%

[0048] Furnace outlet smoke temperature (rated output): 887.6°C

[0049] Boiler excess air coefficient (rated output): Furnace outlet / 1.24

[0050] Air volume at air preheater inlet: 19.18kg / s.

[0051] The content of heavy metal ions in fly ash is 1.26mg / L.

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PUM

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Abstract

The invention relates to the field of papermaking environmental protection and particularly solves the pollution problem in the mode that papermaking deinking sludge, revolving drum waste slag and wastewater treatment sludge are mixed and incinerated, and heavy metal ions in the deinking sludge are controlled by adjusting the proportion. All components of the deinking sludge, all components of the wastewater treatment sludge and all components of the revolving drum waste slag are combined, the main component of fillers and coatings in the deinking sludge is calcium carbonate, and thus the fillers and the coatings are excellent adsorbents for heavy metal ions. According to a papermaking solid waste incineration proportioning process, the heavy metal ions are effectively controlled by adjusting the proportion of the deinking sludge, the wastewater treatment sludge and the revolving drum waste slag, the content of heavy metal ions in flue gas is decreased, and hence the purpose of protecting the environment is achieved.

Description

technical field [0001] The invention relates to the field of papermaking environmental protection, and specifically relates to the mixed incineration of papermaking deinking sludge, drum waste residue and wastewater treatment sludge, and controls the pollution of heavy metal ions in the deinking sludge by adjusting the ratio. Background technique [0002] For waste paper pulping and papermaking enterprises, papermaking solid waste mainly includes three categories: deinking sludge, water treatment sludge and drum sorting waste residue. These papermaking solid wastes are mainly treated by mixed incineration. [0003] Deinking sludge is produced in the waste paper pulping flotation deinking process. These deinking sludges mainly include fillers and coatings in waste paper, as well as fine fibers and most of the ink particles separated from the fibers. Ink contains a large amount of heavy metal elements, which is easy to cause great pollution to the environment. [0004] Wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/00
CPCF23G7/00F23G2201/702F23G2203/50
Inventor 张凤山周景蓬刘燕韶李晓亮魏文光冯好伟李红艳郭启程
Owner SHANDONG HUATAI PAPER