Welding Technology of High Temperature Heat Exchanger Plate

Thermal Protection Technology of High Temperature Heat Exchanger Plate

Thermal Expansion Prevention Technology of High Temperature Heat Exchanger

Axial Fuel Staged Combustion Technology

With the further increase of the outlet temperature of the combustion chamber, the regular lean premixed combustion technology cannot meet the standard requirements for further reduction of NOx.

Axial Air Staged Combustion Technology

At present, synthesis gas will become one of the widely used energy sources in the future. Among them, synthesis gas with high hydrogen content is easy to cause backfire of burners due to the very high combustion speed of flame surface [1,2]. Therefore, most of these burners generally adopt the form of diffusion combustion, which makes the nitrogen oxide emission of burners with this kind of fuel higher. In order to meet the environmental requirements, it is necessary to develop a new combustion organization technology. Rich-Rapid Mixing-Lean Burn (RQL) is a technology developed to address the flashback problem and the nitrogen oxide emission problem.

Micro-mixing (Micromixer) combustion technology

Micro-mixing burner (Micromixer Burner, MM) is a kind of fuel and oxidant in micro-scale after mixing combustion organization technology. The mixing space of a typical micro-mixing burner is composed of a micro-scale straight tube, which is enclosed by a front panel and a rear panel, as shown in Figure 1 [1]. Since air and fuel are mixed on a very small scale, a high degree of mixing can be achieved, reducing NOx emissions. Due to the quenching effect of small tube diameter, the micro-mixed reactor has high anti-flashback performance, especially suitable for hydrogen and other active fuels [2]. Figure 2 and Figure 3 are the structural diagrams of the actual application of the micro-mixing combustion chamber.

Low-spin combustion technology

Low Swirl Burner (LSB) is a very promising combustion organization technology to reduce NOx emissions.

Soft (flameless) combustion technology

Soft combustion is also called flameless combustion. The main feature is that there is no flame surface, that is, the chemical reaction occurs in the entire combustion chamber area, the combustion is more uniform, the temperature gradient is small, and there is no local high temperature zone, so NOx emissions are even more than axial classification. One order of magnitude lower [1]. Kruse et al. [2] The relationship between NOx and CO emissions and equivalent ratio in soft combustion was studied, as shown in Figure 1.

Oxygen-enriched (or pure oxygen) combustion technology

Oxygen-enriched combustion (or pure oxygen) mainly uses high-concentration oxygen or pure oxygen gas as an oxidant, and the main products are water and carbon dioxide. This technology completely solves the problem of NOx emissions because the oxidant does not contain nitrogen. Combustion technology.

Noise Reduction Technology of High Speed Nozzle with Secondary Flow Ejection and Folding Flame

Here is a summary. The company focuses on high-tech research and development, energy-saving product design and production in the fields of fluid transportation (water pump, fan), fine control combustion, high-efficiency heat exchange, etc., and provides professional technical transformation services to provide users with professional comprehensive energy-saving solutions.

Thermal Protection Technology of Pure Oxygen Combustion

Here is a summary. The company focuses on high-tech research and development, energy-saving product design and production in the fields of fluid transportation (water pump, fan), fine control combustion, high-efficiency heat exchange, etc., and provides professional technical transformation services to provide users with professional comprehensive energy-saving solutions.

Guizhou Delong Cement Co., Ltd. Grate Cooling Fan Technical Renovation Project

This renovation is aimed at 11 grate coolers on the company's 3000T/D line. The original grate coolers have low operating efficiency and high energy consumption. At the same time, as the company will increase the production of the whole system, it is necessary to replace the four generations of grate cooling bed, adjust the process design and rearrange the process pipelines. The original fan can no longer meet the production demand after the increase in production. In order to adapt to the operation demand of the new working conditions, it is necessary to carry out technical transformation on the original fan.

Technical Transformation Project of Circulating Fan of Sichuan Huaying Tay Cement Co., Ltd.

In order to realize the corporate vision, Taiwan Cement has been seeking cooperation with innovative enterprises of energy conservation and environmental protection. Its business philosophy coincides with Ruichen Environmental Protection's pursuit of innovative energy conservation methods. The renovation of the circulating fan of the 4000t/d clinker production line of Sichuan Huaying Taili Cement Co., Ltd. is undertaken by Ruichen Environmental Protection. Ruichen Environmental Protection has tailored solutions to the problems of high energy consumption, serious wear, vibration and noise of the original fan. The cooperation between the two parties was carried out smoothly and the renovation project was successfully completed.

Juxian Zhonglian Cement Co., Ltd. Fan Energy Saving Technical Transformation Project

From the beginning of 2018, Shanghai Ruichen Environmental Protection has successively transformed 5 high-efficiency and energy-saving fans for Juxian Zhonglian Technology, covering the entire production line and putting them into use one after another, with immediate results. It saves 6.375 million kw of electricity per year, 3.825 million yuan per year, 1912.5 tons of standard coal per year and 5559 tons of CO2 per year (the annual operation time of the fan is calculated at 5000h).

Fan Energy Saving and Environmental Protection Technical Transformation Project of Hanbaoshan Iron & Steel Co., Ltd.

As a major industrial and energy province, Hebei Province actively responds to the call for energy conservation. In order to promote the smooth development of the 13th Five-Year Plan, the industrial sector has implemented "controlling total volume, promoting transformation, focusing on technological transformation, promoting energy conservation, focusing on management, and promoting efficiency". Important measures. As an important production base of high-quality plate and high-quality bar and wire rod in China, Handan Iron and Steel Group Hanbaoshan Iron and Steel Co., Ltd. is facing the problems of aging equipment and low fan operation efficiency, so technological upgrading and fan transformation are imminent. At this time, Ruichen Environmental Protection undertook the renovation of the supporting environmental dust removal fan for the 2x 360 m sintering machine of Handan Baosteel Iron Co., Ltd. and completed it beyond the standard, which was affirmed by Handan Baosteel Iron Co., Ltd.

Jiangsu Shagang Group Huaigang Special Steel Co., Ltd. Fan Energy Saving Technical Transformation Project

At the beginning of 2016, the 2# coke oven of Huaigang was overhauled. In order to meet the environmental protection requirements, the dust removal fan needs to be modified. According to the calculation of the design institute, the air volume has increased from 190000 m3/h to 260000 m3/h, and the motor has changed from 560kW to 710kW. Therefore, it is necessary to purchase fans, motors, frequency converters, etc. again, and to rebuild the civil foundation, which takes at least 7 days, affecting production. However, our company only needs to customize a "Rui Chang" high-efficiency and energy-saving fan to meet the needs.

Fan Energy Saving Technical Transformation Project of Lianyungang Xingxin Iron and Steel Co., Ltd.

The original dust removal fan of Xingxin Iron and Steel 3# out of the iron yard has poor dust removal effect. In order to respond to the national environmental protection call, after comprehensive consideration, Xingxin Iron and Steel decided to use our high-efficiency and energy-saving fans, increase the air volume and air pressure design, and require that the operating efficiency of the modified fans shall not be less than 80%. In early September 2017, Shanghai Rychen completed the installation of the new fan. After a period of operation, the two parties organized the acceptance, and the operating efficiency reached more than 81%, and the project was perfectly accepted.

Tangshan ganglu iron and steel co., ltd. a burning workshop tail dust removal fan energy-saving technical transformation project

This renovation is aimed at two tail dust removal fans in the first burning workshop. The original 1# and 2# tail dust removal fans have low operating efficiency of 60.76 and 60.67 respectively, which cannot meet the production requirements. The manufacturer requires the use of existing electrical equipment to transform two fans to maximize the operating air volume and air pressure of the fans.

Southern Cement Co., Ltd. Fan Energy Saving Technical Transformation Project

Jiangxi Southern Cement responded to the national call for environmental protection, reduced dust emissions, and replaced the original electric dust removal equipment at the kiln end of each branch plant with bag dust removal equipment. The system resistance will increase by 1000Pa to 1500Pa. Shanghai Rychen adopts high-efficiency fluid conveying technology and customized "Rui Chang" high-efficiency energy-saving fan, which can not only meet the need of increasing wind pressure after changing electric bags, but also effectively reduce the increase of production cost. After technological transformation, the operating efficiency of the three high-efficiency fans is higher than 80%, and the increase in power consumption per ton is lower than 1.5kWh, meeting the requirements of Southern Group.

Hebei Jinyu Dingxin Cement Co., Ltd. Coal Mill Fan Reconstruction Project

The operating efficiency of the original 4000t/d coal mill fan is 68.8%, and the operating efficiency is low. In order to improve the air volume, the original fan needs to be technically modified. After the renovation of our company, the flow rate has been greatly improved compared with that before the renovation, the equipment is stable in operation, and the fan operation efficiency has reached 82.7, which has been unanimously recognized by the senior management and leaders of Jinyu Dingxin.

Sinoma Cement Co., Ltd. Fan Energy Saving Technical Transformation Project

In response to the national call for "energy saving and emission reduction", Zhongcai Changde Cement has reduced chimney dust emissions and replaced the original electric dust removal equipment of kiln head fan with bag dust removal equipment. The system resistance will increase by 1000Pa to 1500Pa. Shanghai Rychen adopts high-efficiency fluid conveying technology and customizes "Rui Chang" high-efficiency and energy-saving fans, which can not only meet the needs of increasing wind pressure after changing electric bags, but also effectively reduce the operating power of kiln head fans. After the energy-saving technological transformation, the operating efficiency of the kiln head fan is as high as 87.21, and the operating power is reduced from 225KW before the transformation to 154KW. The customer has reported good results and plans to hand over other fans to Shanghai Rychen for further transformation.

Fan Energy Saving Technical Transformation Project of Huaxin Cement Co., Ltd.

Huaxin Cement Co., Ltd. cooperated with Shanghai Rychen to carry out the technical reform of fan energy saving. The raw material mill circulating fan of 5000T/D production line of Daye Branch was selected as the pilot, and the transformation was completed in May 2016. The equipment was stable in operation and the power saving rate was as high as 20.2, which was unanimously recognized by the senior management of Huaxin Cement.

Energy-saving Technical Transformation Project of Fan of Gezhouba Group Cement Co., Ltd.

With the increasingly fierce competition in the cement industry, it is imperative to save the cost of the production line. Shanghai Rychen carried out energy-saving transformation on its high-temperature fan and circulating fan in 2017 and 2018 respectively. After the transformation, the equipment is stable in operation, and the energy saving benefit is remarkable. The power saving rate is 19.7% and 27.8% respectively, which has been unanimously recognized by the senior leaders and leaders of the old estuary of Gezhouba.

High Temperature Fan Renovation Project of Yiliang Hongshi Cement Co., Ltd.

Red Lion Holding Group actively responded to the call of national energy conservation and environmental protection, and carried out the technical reform of fan energy conservation. The high-temperature fan of the 5000t/d production line of Yiliang Hongshi Cement Co., Ltd. was selected as a pilot, and the renovation was completed in September 2016, with perfect delivery and a power saving rate of 15.88.

Fan Energy Saving Technical Transformation Project of China United Cement Co., Ltd.

The enterprise has a domestic leading level of 5000t/d new dry cement production line, with an annual production of 1.8 million tons of high-quality clinker and 2.6 million tons of cement. This time is aimed at the energy-saving renovation of the original high temperature, circulating and tail exhaust fans. The operating efficiency of the original fans is 65.7, 63.8 and 59.1 respectively. After the renovation by our company, the operating efficiency of the fans has reached 81.6, 83.0 and 84.2 respectively. Under the same working conditions, the hourly power saving of the high temperature, circulating and tail exhaust fans has reached 1683kW (far exceeding the agreed value of 1157kW), it has been unanimously recognized by the top and leaders of Anyang Zhonglian.

Fan Technical Transformation Project of Tianrui Xintang Zhengzhou Cement Co., Ltd.

The company has the first new dry production line with a daily output of 4500 tons of clinker cement in Zhengzhou, with an annual output of 1.55 million tons of cement clinker. This transformation is aimed at the circulation, tail exhaust fan, the original circulation, tail exhaust fan operation efficiency is low, in order to reduce energy consumption, the need for energy-saving transformation of the original fan. After the transformation of our company, the equipment is stable in operation, the fan operation efficiency is obviously increased, the power saving rate is 22.9 and 25.7 respectively, and the hourly power saving amount of circulating and tail exhaust fans reaches 752.5kW and 132.8 kW respectively, which has been unanimously approved by the senior management and leaders of Tianrui Xintang Zhengzhou.

Hunan Ningxiang Southern Cement 3200t/d Line Grate Air Cooler Technical Renovation Project

In order to solve the problems existing in the production of grate air coolers, improve market competition and contribute to the GDP growth of the whole province, Hunan Ningxiang Nanfang Cement Co., Ltd. has found Shanghai Rychen Environmental Protection, which has reformed its 3200t/d circulating fan and kiln tail fan and achieved good results, to carry out energy-saving technical reform of grate air coolers.

Hebei Quzhai Cement Group Fan Energy Saving Technical Transformation Project

Quzhai Cement actively responded to the national call for energy conservation and environmental protection, and carried out the technical transformation of fan energy conservation. The raw material mill circulating fan of 5000t/d production line was selected as the pilot for bidding. Shanghai Rychen won the bid and completed the renovation in April 2016 with perfect delivery. The equipment is stable in operation, and the power saving rate is as high as 21.3, which has been unanimously recognized by the senior management of Quzhai Cement Group.

Hubei Jinglan Cement Group Fan Energy Saving Technical Transformation Project

Hubei Jinglan Cement Co., Ltd. has 3 clinker production lines (2500t/d, 3200t/d and 5000t/d). Shanghai Rychen lasted one year and successfully completed the energy-saving transformation of 3200t/d tail high-temperature fan and kiln tail fan. The energy-saving effect was remarkable and was fully recognized by Hubei Jinglan Cement Group Co., Ltd.

Zhejiang Jiangshanhu Group Fan Energy Saving Technical Transformation Project

The two cement clinker production lines of Jiangshanhu Group have 10 large fans with online operating power exceeding 12,000kW, and these fans are generally inefficient and consume a lot of electricity. If these low-efficiency fans are replaced with high-efficiency and energy-saving fans, a large amount of electricity can be saved every year, creating considerable economic benefits and good social effects for enterprises.

Guangxi Yufeng Cement Co., Ltd. High Temperature, Kiln Tail Fan Renovation Project

This renovation is aimed at 2# high temperature fan J1J01, 2# high temperature fan J1J03 and 2# kiln tail fan J1P01 of 3200T/D line. The operating efficiency of the original three fans is 65.49%, 61.02% and 57.29% respectively, which is relatively low. In order to reduce energy consumption, the original fan is energy-saving.

Energy Saving Transformation of Circulating Water System in Xinyu Iron and Steel Group Co., Ltd

In May 2018, Rychen Environmental Protection undertook the transformation of 26 pumps of Xinyu Iron and Steel Co., Ltd., including 12 low-specific-speed double-suction pumps with a specific speed of less than 50 and 14 self-priming pumps of cyclone pool with harsh working environment and extremely low efficiency. There are problems such as non-universal spare parts of circulating water pumps, high failure rate of equipment and high energy consumption. At the same time, it is necessary to optimize the process of the intelligent control system, which is very difficult to transform.