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Biochemical herb residue drying and pulverized coal boiler coupling incineration system

A pulverized coal boiler and biochemical technology, applied in the direction of incinerators, combustion types, combustion equipment, etc., can solve the problems of boiler thermal efficiency decline, mixed combustion efficiency, and low disposal volume, so as to reduce boiler efficiency and reduce flue gas The effect of increasing the volume and improving the disposal capacity

Pending Publication Date: 2021-12-10
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a coupled incineration system for biochemical dregs drying and pulverized coal boilers, so as to solve the existing problems of low blending efficiency and disposal capacity, and significant decline in boiler thermal efficiency

Method used

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  • Biochemical herb residue drying and pulverized coal boiler coupling incineration system
  • Biochemical herb residue drying and pulverized coal boiler coupling incineration system
  • Biochemical herb residue drying and pulverized coal boiler coupling incineration system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The thermal power plant boiler with a single unit rated capacity of 300MW (rated evaporation capacity of 1028t / h) that has completed ultra-low emission transformation has a designed coal consumption of 132t / h under the condition of the boiler’s maximum continuous evaporation capacity. It is equipped with SCR denitrification device, high-efficiency electrostatic dust removal, and wet limestone-gypsum desulfurization device to achieve ultra-low emissions.

[0057] Now, through technological transformation, a biochemical dregs receiving and drying feeding blending system that can handle 100t / d has been built. Under the design load of 100%, 4.2t / h of biochemical residues (with a moisture content of 80%) are transported to the drum drying chamber, and then incinerated in the furnace after drying, with a mass blending ratio of 3.2%. At the same time, the high-temperature flue gas (450-650°C) and a certain amount of ambient air (accounting for 0-50% of the high-temperature flu...

Embodiment 2

[0061] The thermal power plant boiler with a single unit rated capacity of 300MW (rated evaporation capacity of 1028t / h) that has completed ultra-low emission transformation has a designed coal consumption of 132t / h under the condition of the boiler’s maximum continuous evaporation capacity. It is equipped with SCR denitrification device, high-efficiency electrostatic dust removal, and wet limestone-gypsum desulfurization device to achieve ultra-low emissions.

[0062] Now, through technological transformation, a biochemical dregs receiving and drying feeding blending system that can handle 100t / d has been built. Under the design load of 100%, transport 4.2t / h biochemical residue (moisture content 80%) to the drum drying chamber, after drying, it will be temporarily stored in the buffer warehouse and then incinerated in the furnace to increase its quality and the proportion of mixed combustion is 6.4%. At the same time, the high-temperature flue gas (450-650°C) and a certain ...

Embodiment 3

[0066] The thermal power plant boiler with a single unit rated capacity of 300MW (rated evaporation capacity of 1028t / h) that has completed ultra-low emission transformation has a designed coal consumption of 132t / h under the condition of the boiler’s maximum continuous evaporation capacity. It is equipped with SCR denitrification device, high-efficiency electrostatic dust removal, and wet limestone-gypsum desulfurization device to achieve ultra-low emissions.

[0067] Now, through technological transformation, a biochemical dregs receiving and drying feeding blending system that can handle 100t / d has been built. Under the design load of 100%, transport 4.2t / h biochemical residue (moisture content 80%) to the drum drying chamber, after drying, it will be temporarily stored in the buffer warehouse and then incinerated in the furnace to increase its quality and the proportion of mixed combustion is 6.4%. At the same time, the high-temperature flue gas (450-650°C) and a certain ...

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Abstract

The invention provides a biochemical herb residue drying and pulverized coal boiler coupling incineration system. The system comprises a storage bin, a temperature adjusting mixing mechanism, a drying mechanism and a tail gas treatment mechanism; the storage bin is used for storing biochemical herb residues; the temperature adjusting mixing mechanism comprises a temperature adjusting cavity; the temperature adjusting cavity is used for adjusting the smoke temperature, and is provided with a first intake port, a second intake port and an exhaust port; the first intake port communicates with an inlet of a boiler economizer; the second intake port communicates with the atmosphere; the drying mechanism comprises a drying cavity and a driving part; the drying cavity is used for heating the biochemical herb residues, and is provided with an intake port, an exhaust port, a feed port and a discharge port; the intake port of the drying cavity communicates with the exhaust port of the temperature adjusting cavity; the feed port of the drying cavity communicates with the discharge port of the storage bin; the discharge port of the drying cavity communicates with a coal mill; and the tail gas treatment mechanism communicates with the exhaust port of the drying cavity and a boiler. The system uses smoke generated by boiler combustion for drying wet herb residues, feeds the dried herb residues into the coal mill for mixing, and then, feeds the mixed herb residues into the boiler for blending combustion, so that the blending combustion efficiency and the herb residue treatment quantity are improved, and the energy is saved.

Description

technical field [0001] The invention belongs to the field of biomass solid waste disposal, and in particular relates to a coupled incineration system for drying biochemical medicine dregs and a pulverized coal boiler. Background technique [0002] The traditional Chinese medicine industry is a traditional characteristic industry in my country, and it has developed rapidly in recent years. However, with the increase in the number of Chinese medicine companies and the continuous development of their scale, the output of medicinal residues is also increasing. Some enterprises producing Chinese patent medicines, raw materials, processing Chinese medicinal materials, and producing medicinal wine containing traditional Chinese medicines all produce medicinal residues. Among them The biochemical dregs produced by the production of Chinese patent medicines account for more than three-quarters of the output of dregs. However, the cost of landfilling and composting of medicinal resid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/04F23G5/08F23G5/44F23G5/46F23K1/00F23J15/06
CPCF23G5/04F23G5/08F23G5/444F23G5/46F23K1/00F23J15/06F23K2201/10F23K2201/501
Inventor 方朝君宋飞徐顺祥姚啸林焦伟张超
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD
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