Usher in a new era of continuous production of sulfuric acid plants from sulfur

Lizhenglai Technology (Chongqing) Co., LTD. [China · Bishan, April 22, 2026] Today, it officially launched and accepted orders for the industry's first "Anti-clogging sulfur gun" to global sulfuric acid production customers. The launch of this innovative product marks a revolutionary breakthrough in the long-standing problem of nozzle clogging faced by the sulfur-to-acid industry, providing a brand-new solution for the long-term continuous and stable production of sulfur-to-acid facilities.

Industry chronic problem: Clogging of sulfur gun nozzles restricts continuous production

In the process of sulfuric acid production from sulfur, the sulfur gun, as the core equipment for atomizing liquid sulfur and spraying it into the sulfur-burning furnace, its operational stability directly determines the steady-state performance and economic efficiency of the sulfuric acid plant. However, for a long time, the clogging of sulfur gun nozzles has been a common problem plaguing the industry.

The root cause of the clogging problem lies in the inevitable introduction of various impurities during the storage and transportation of liquid sulfur. Specifically, during long-term operation, large sulfur refining tanks, sulfur refining tanks and conveying pipelines will generate a large amount of mechanical impurities and iron sulfide particles due to corrosion, wear and the chemical reaction between sulfur and iron. After these impurities enter the sulfur gun along with liquid sulfur, they are very likely to deposit and accumulate at the nozzle, eventually causing nozzle blockage.

Once a blockage occurs, the traditional solution can only be to suspend production for maintenance - disassemble the sulfur gun, clean or replace the nozzle. Each shutdown not only leads to several hours or even a day's loss of production capacity, but also brings about high costs for the industrial chain to cease production, as well as energy consumption and safety issues when the facilities are restarted. For large-scale sulfuric acid producers, unplanned production halts caused by clogged sulfur guns have become a bottleneck that restricts the economic benefits and stable supply of the facilities

Technological breakthrough: The gun body is equipped with a precise filtration system

In response to the above-mentioned industry pain points, the R&D team of Lizhenglai has spent three years on technological research and development and successfully launched the world's first "Anti-clogging sulfur gun". The core innovation of this product lies in the ingenious integration of a precision filtration system into the body of the sulfur gun, achieving the pre-interception of impurities. It avoids the impurities generated by the liquid sulfur system flowing to the nozzle of the sulfur gun and clogging the sulfur gun.

99% efficient interception, eliminating blockages from the source

The built-in precision filter of the anti-clogging sulfur gun adopts a special structural design and three times the flow cross-sectional area, which can achieve an interception efficiency of up to 99% for mechanical impurities and iron sulfide particles in liquid sulfur. This means that the vast majority of potential clogging sources are effectively filtered out before reaching the nozzle, fundamentally eliminating the causes of nozzle clogging. The high flow cross-sectional area ensures that the precision filter can filter for a long time without affecting the decrease in the flow rate of the sulfur gun.

Online quick-change technology breaks the deadlock of production suspension

In addition to its outstanding filtration performance, another breakthrough design of the anti-clogging sulfur gun lies in its "online quick change" function. The precision filter adopts a modular design, which enables rapid inspection and replacement of the filter while the sulfur plant is operating normally without interrupting production at all. This design has completely overturned the traditional passive maintenance mode of "blockage - production halt - maintenance", transforming the maintenance of sulfur guns from "shutdown operation" to "online maintenance".

Core advantages of the product

Table 1: Comparison of Key Indicators Between Traditional Desulfurization Spray Guns and Anti-Clogging Desulfurization Spray Guns

Application value and industry significance

The launch of the anti-clogging sulfur gun is not only a technological upgrade of a single product, but will also have a profound impact on the entire sulfur acid production industry.

Remarkable economical benefit

For sulfuric acid production enterprises, the direct economic value of anti-clogging sulfur nozzles is reflected in: eliminating unplanned production suspension losses, reducing maintenance labor costs, decreasing energy consumption during production suspension and restart, and extending the service life of sulfur nozzles and nozzles. Take a 600,000-ton sulfuric acid plant per year as an example. The loss from a single unplanned shutdown can reach hundreds of thousands of yuan. The application of anti-sulfur-blocking guns is expected to reduce such losses to nearly zero.

Promote the intelligent upgrade of the industry

The online quick change function of the anti-clogging sulfur gun lays a foundation for the intelligent operation and maintenance of the sulfuric acid production unit from sulfur. In the future, by integrating automatic control technology, pressure and temperature measurement, real-time monitoring and predictive maintenance of the filter status can be achieved, further enhancing the intelligent level of device operation.

Support green and low-carbon production

Reducing the number of unplanned shutdowns means reducing energy waste and emission fluctuations during the start-up and shutdown of facilities. The anti-clogging sulfur gun indirectly promotes energy conservation and emission reduction in sulfuric acid production by ensuring the continuous and stable operation of the equipment, which is in line with the national "dual carbon" strategic goals.

Look forward to the future

The release of the world's first anti-clogging sulfur gun is an important milestone in the field of sulfur acid production equipment. It not only solves a long-standing technical problem that has plagued the industry, but also opens up a new path for the continuous, long-term, economically efficient, green and intelligent operation of sulfuric acid production enterprises from sulfur. With the promotion and application of anti-clogging sulfur guns, we look forward to seeing a significant improvement in the overall operational efficiency of the sulfur acid production industry, as well as the dual improvements in economic and environmental benefits brought about by this. This innovative product is bound to inject new impetus into the sustainable development of the sulfuric acid industry in China and even globally.

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