Cement plant condenser cleaning in Zhangqiu, Jinan, Shandong

Clean various heat exchangers, condensers, industrial pipelines, boilers, and steam power plant condensers — Grange Chemical Co. guarantees collaboration.

Jining Greentech Chemical Technology Co., Ltd. (abbreviated to Jining Greentech Cleaning Co.) was established in 2010 and specializes in the cleaning of various industrial heat exchange equipment. The company possesses comprehensive business philosophy and the capability to develop industrial equipment cleaning technology, taking on projects including cleaning of industrial, private enterprise, and corporate chemical equipment, power station equipment, condensers of power plants, boilers, and economizers. We also offer air conditioning and heat exchange equipment cleaning services, as well as cleaning of machinery and chemical equipment. We also handle the cleaning and descaling of refrigeration and heating equipment.
Cement factory condenser cleaning in Zhangqiu, Jinan, Shandong

Jining Grean Cleaning Co. has dozens of cleaning machines of various models ranging from 10mpa to 250mpa, and over a dozen chemical cleaning pump stations. Our main services are provided to power plants, chemical factories, oil refineries, food processing plants, corporate entities, heating equipment, and more. The company also offers long-term industrial heat exchanger cleaning and design solutions to industry clients.

Our company has newly acquired domestic cleaning machines and imported cleaning equipment. We have hired experienced technical specialists in the cleaning industry to achieve standardized and standardized cleaning of heat exchange equipment.

Chemical cleaning descaling process:

Recirculating closed-loop cleaning

Recirculating cleaning utilizes two existing parallel ash pipelines to form a loop, creating a recirculation system with the cleaning pump station. A certain concentration of acidic solution is added, which circulates through the ash water pipes for cleaning. As the acid washing decreases to a certain level, the acidic solution is continuously replenished. For short-distance single ash water pipelines, if conditions permit, a temporary pipeline can be laid to form a recirculation loop for cleaning. This process must be carried out while the system is offline, and it is complex and costly.

Open path cleaning

No two grey pipes should form a loop during cleaning; only a single grey pipe should be used for open-loop cleaning. The method involves connecting one end of the grey pipe to the cleaning unit, continuously preparing a specific concentration of cleaning solution in the blending tank, and then injecting it into the grey pipe either continuously or intermittently. This process requires additional cleaning equipment during shutdown, which increases costs.
Cement plant condenser cleaning in Zhangqiu, Jinan, Shandong

Continuous cleaning without shutdown

The process involves continuously injecting a certain amount of acidic fluid while operating the ash conveying pipes, simultaneously adding a specific quantity of ash conveying pipeline cleaning inhibitor and pipeline cleaning descaler. This is an open-loop cleaning method. The primary role of the cleaning aids is to facilitate the reaction between the acidic fluid and ash deposits at a certain concentration and flow rate, while also enhancing their solubility in water, reducing the formation of air blockages, and ensuring the quality of ash pipe cleaning.

The procedure is as follows: Before cleaning, first estimate the required acid amount based on the total scale in the pipeline. Then, calculate the acid addition rate and the flow rate of the descaling agent and pipeline cleaning agent by considering the sludge water flow rate and acidity. During cleaning, take a sample at the front end of the sludge pipe every 30 minutes to test the acidity and strictly control it by adjusting the acid flow rate. In the later stage of cleaning, take a sample at the end of the sludge pipe every 15 minutes to test the pH value. When the pH value reaches a certain level and remains unchanged for 30 minutes, the cleaning can be deemed complete.
Cement plant steam condenser cleaning in Zhangqiu, Jinan, Shandong

2. High-pressure water jet cleaning machinery
High-pressure water jet cleaning is efficient, cost-effective, non-damaging to workpieces, environmentally friendly, easy to operate, and safe.
The high-pressure water technology boasts the following advantages.

(1) Excellent cleaning quality: The high-pressure water jet cleaning of pipeline and heat exchanger bores can completely remove scale and blockages inside, revealing the metal substrate. The high-pressure water jet, with its immense energy and supersonic speed, can fully destroy hard scale and blockages without causing any damage to the metal.

Since the pressure of high-pressure water is less than the compressive strength grade of metal, high-pressure cleaning will not damage the base material being cleaned.
Cement factory condenser cleaning in Zhangqiu, Jinan, Shandong

(2) Fast Cleaning Speed: Due to the combined crushing effects of water jet washing, splitting, shearing, and grinding, scale can be quickly broken and removed, which is several to ten times faster than traditional chemical methods, sandblasting and shot peening techniques, simple mechanical, and manual cleaning methods.

Additionally, parts cleaned with high-pressure water jetting do not require secondary cleaning; however, after chemical cleaning, the surface must be rinsed with clean water.
Cement plant condenser cleaning in Zhangqiu, Jinan, Shandong

(3) No Environmental Pollution - Since high-pressure water jet cleaning uses pure water as the medium, it does not generate large amounts of dust like sandblasting or simple mechanical cleaning, which can pollute the atmosphere and harm health. Nor does it produce a significant amount of waste liquid like some chemical cleaning methods, which can contaminate rivers, soil, and water quality. The water jet cleaning using pure water is odorless, tasteless, and non-toxic. After atomization, it can also reduce the dust concentration in the work area, lowering atmospheric dust from 80mg/m³ using other methods to below the national safety standards, thus causing no pollution.

Cement factory condenser cleaning in Zhangqiu, Jinan, Shandong

Pipe Scale

(1) Classified by chemical composition, they can be categorized into carbonate scale, sulfate scale, silicate scale, and mixed scale, etc. The main components of carbonate scale are calcium carbonate and magnesium carbonate; the main components of sulfate scale and silicate scale are calcium sulfate and silicate compounds, respectively.

Cement Plant Condenser Cleaning in Zhangqiu, Jinan, Shandong

(2) Categorized by physical properties, there are two types: scale that is firmly adhered to the pot shell and pipe walls, and sediment that is loosely textured and easily detached.
Scale primarily forms due to the salts like calcium and magnesium in the boiler feed water that precipitate and adhere to the metal surface upon heating. The thermal conductivity of scale is very low, around 2 to 5 times that of ordinary steel. Scale buildup on the boiler heating surface significantly worsens heat transfer efficiency and affects the boiler's performance; it can easily cause metal materials to burn due to localized overheating, even leading to pipe explosion accidents; it also accelerates galvanic corrosion, causing pipeline scale corrosion and speeding up the damage to the heating surface. Once scale forms, it should be promptly removed using mechanical or chemical methods.

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