Dongguang Chemical won the special prize of Science and Technology Award of China Nitrogen Fertilizer Industry Association

At the "2021 China Nitrogen Fertilizer and Methanol Technology Conference" recently held by the China Nitrogen Fertilizer Industry Association, Hebei Dongguang Chemical Co.
, Ltd.
won the award for its "Fixed Bed Intermittent Gas Circulating Water Volatile Pollutant Treatment Technology" 2020 Special Prize of Science and Technology Award of China Nitrogen Fertilizer Industry Association
.
And once again won the advanced unit of energy saving and emission reduction in China's nitrogen fertilizer and methanol industries

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The picture shows the China Nitrogen Fertilizer Industry Association presenting the special prizes for the Science and Technology Awards of Dongguang Chemical and other units
.

The picture shows the China Nitrogen Fertilizer Industry Association presenting the special prizes for the Science and Technology Awards of Dongguang Chemical and other units
.

Gu Zongqin, chairman of the China Nitrogen Fertilizer Industry Association, pointed out that exhaust gas emissions from the cooling tower of the gas-making circulating cooling water system containing phenol, cyanide, and ammonia are the key to the survival of ammonia in the intermittent fixed bed coal gasification at atmospheric pressure.
The "Comprehensive Pollution Treatment Plan" also clearly puts forward the requirement to speed up the gas cooling of atmospheric intermittent fixed-bed coal gasifiers in the nitrogen fertilizer industry from direct water washing to indirect cooling

.

At the same time, Dongguang Chemical also adopted a fully enclosed vibrating screen, mist forest dust suppression device, automatic upgrading and transformation of coal adding and slagging system for the gas production section, which realized the complete automation of the gasifier operation and improved the gasifier’s performance.
Security

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The picture shows a corner of the gas production workshop of a clean atmospheric fixed-bed coal gasification unit
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The picture shows a corner of the gas production workshop of a clean atmospheric fixed-bed coal gasification unit
.

Wang Zhihe, Chairman of Dongguang Chemical, told reporters that in 2019, as environmental protection policies became more and more stringent, Dongguang Chemical had the courage to assume its historical mission amid the elimination of atmospheric fixed-bed intermittent coal gasification.

In August of that year, Under the support and guidance of China Nitrogen Fertilizer Industry Association, under the condition that there is no precedent for fixed-bed gasification circulating water source treatment, it boldly innovates and jointly develops and implements the first domestic fixed-bed environmental protection project with partners

According to reports, the total investment of the project is 170 million yuan
.
Among them, the main upgrading and transformation project-the indirect cooling transformation is constructed in three phases.

The first phase of the demonstration device (four furnaces and one group) was put into operation in November 2019, and the second phase of the comprehensive upgrading and transformation of the first branch plant was put into operation in August 2020; The comprehensive upgrading and renovation of the Phase 2 branch plant will be put into operation in November 2020

The picture shows the exterior view of the clean atmospheric fixed-bed gas installation completed by Donghua Company
.

The picture shows the exterior view of the clean atmospheric fixed-bed gas installation completed by Donghua Company
.

Through the overall operation of the gas production system of Dongguang Chemical for one year, the equipment is stable, the process indicators are qualified, the operation is stable, and the temperament indicators meet the requirements.

At the same time, the device is easy to operate, the degree of automation is high, the safety accessories are fully equipped, and the operation power consumption The increase is not obvious, and it can achieve no impact on the gas quality, and the incremental water will meet the national discharge standard after being treated by changing the treatment method

The expert group agreed that the technology has independent intellectual property rights, the operation of the device is stable and reliable, and has reached the domestic leading level, and agreed to pass the result appraisal
.
The expert group also pointed out that the technology has achieved fixed-bed intermittent gasification technology with wet slag, zero VOCs discharge, and ultra-low discharge of waste water.

It has established a model project and transformation model for the entire industry to upgrade the fixed-bed environmental protection standard

Pictured Hebei Province, East Chemical Co.
, Ltd.
office building
.

Pictured Hebei Province, East Chemical Co.
, Ltd.
office building
.

　　In recent years, Dongguang Chemical has continuously increased its investment in energy-saving and environmental protection treatment facilities, adopting new technologies, new equipment, and new materials to transform equipment and processes with outdated technology and high energy consumption, so as to continuously reduce energy consumption and improve energy utilization efficiency.

　　Wang Zhihe said that in the next step, Dongguang Chemical will continue to work hard, continue to adhere to the path of safe development, green development, and high-quality development, and promote the steady and rapid development of the company
.