|Industrial dust treatment equipment series|
|Welding fume exhaust gas treatment series|
|Grinding polishing dust removal equipment|
|Stand-alone dust collector|
|Spiral duct and accessories series|
水泥行业使用的大量袋式除尘器在选择和使用上仍存在许多不合理因素. 袋式除尘器作为一种理想的除尘设备，已广泛应用于水泥工业的各个生产环节. 随着水泥生产技术的不断进步，许多生产环节只能用袋式除尘器来满足生产需要和国家排放要求. 也就是说，在水泥行业，目前的袋式除尘器不仅是一种环保设备，也是一种必不可少的生产设备.水泥厂除尘器的优点和特点 The advantages and characteristics of dust collectors in cement plants , there are still many unreasonable factors in the selection and use of the large number of bag dust collectors used in the cement industry. As an ideal dust removal equipment, bag dust collectors have been widely used in various cement industry Production link. With the continuous progress of cement production technology, many production links can only use bag dust collectors to meet production needs and national emission requirements. That is to say, in the cement industry, current bag dust collectors are not only environmentally friendly. Equipment is also an essential production equipment. Advantages and characteristics of dust collectors in cement plants
Application of dust collector in cement plant:
1.Dust collector of rotary kiln in cement plant
Firing is the main technical means of cement production, and its main pollutant is high-temperature dust-containing gas. The flue gas contains a large amount of dust with a concentration of 30-100 g / m3. Due to the high chimney, the large amount of flue gas, high concentration and long drift If the control is not good, the environmental pollution within a few kilometers or even tens of kilometers will be very large.
Zui is a rotary kiln preheater bag type dust collector, which allows operating temperature up to 280 ° C. For this reason, the bag type dust collector is equipped with temperature control facilities such as waste heat boiler, multi-tube cooler, humidification tower. In addition, the preheater The inlet of the bag filter is also equipped with a cold air valve. When the flue gas temperature is normal, the cold air valve is completely closed. If the furnace is abnormal and the flue gas temperature is too high, open the cold air valve to keep the flue gas temperature below 280 ° C.
2.Cement vertical kiln dust collector
More than 80% of China's cement output comes from vertical kilns. Due to the different raw materials, ingredients and operating habits of various factories, the dust concentration, moisture content, and exhaust temperature of shaft kiln flue gas vary greatly. Therefore, shaft kiln dust removal It has been a problem for the cement industry for many years, and it was not technically solved until the 1990s. The calcination methods of vertical kiln can be divided into open fire, shallow dark fire and deep dark fire. The thickness of the wet material layer on the kiln surface directly affects the vertical kiln smoke. Gas temperature and dust concentration. In dark fire operation, the thickness of the wet material layer can reach more than 1000 mm. The temperature of the flue gas filtered through the wet material layer is very low, generally below 50 ° C. At this time, the dust concentration of the flue gas is also low, generally 5g / m3. When using an open flame, the exhaust gas temperature can reach above 250 ° C, and the dust concentration will also exceed 20g / m3. If shale and other plastic materials are used, the dust concentration in the flue gas will be higher. The action of dark fire is between the two. between. Of course, the working state of the flue gas is also related to the amount of cold air leaking into the kiln door. When the kiln door is opened, the temperature of the flue gas is low, and the kiln door cannot be opened during deep and dark fire operation. Flue gas dew point temperature is generally around 40 ℃
3, Dust removal system of cement plant dust collector system
1.Cement mill dust collector
Technically speaking, the dust removal problem of cement plants is easy to solve in the cement industry, but technically speaking, with the continuous progress of technology and the use of efficient classifiers, the emission concentration of cement plants is getting higher and higher, sometimes exceeding 1,000 g / m3. At this time, the bag filter is not only the dust removal equipment, but also part of the host. Therefore, the design of the bag filter and the dust removal system of the cement plant must be able to directly use the primary dust removal system to handle the high-concentration dust-containing exhaust gas directly. .. The ppw air box pulse bag filter we promoted can meet this requirement and has been widely used in the cement industry.
2. Dust collector for cement packaging system
There are several dust collection points in the cement packaging system. The original system used a single dust collector, and the effect was very poor. In recent years, we have carried out dust removal transformation on the packaging systems of some cement plants. We have adopted a centralized dust removal scheme. Combined with a bag filter, the effect is good.
Advantages and characteristics of dust collectors in cement plants
1. Using galvanized sheet assembly method, no open flame operation is required, ensuring safety
2. As the template is ready in the company, it is convenient to transport and fast to install on site, four workers can complete the assembly of one device in one week.
3. The spiral pipe is hoisted, with beautiful appearance, good compression resistance, and a service life of more than 15 years.
4. The equipment can be equipped with a pipeline spark detector to ensure high safety operation of the equipment.
5. The pipe can be made into a scraper type, and can be equipped with a pipe pressure sensor and a variable frequency controller to achieve the purpose of energy saving.
6. The discharger adopts a special type and has an anti-clogging device, which overcomes the phenomenon of dust clogging in the past.
Related recommendations: How to choose the right bag filter?
提供的 水泥厂除尘器的优点和特点 ，更多 水泥厂 粉尘、废气等除尘工程，从最初的规划到整套除尘系统的调试运行，欢迎来电 400-622-6298 ，欢迎来电咨询！ The above are the advantages and characteristics of the cement plant dust collector provided by Yuchen dust removal equipment manufacturers . More dust removal projects such as dust and exhaust gas from the cement plant , from the initial planning to the commissioning and operation of the entire dust removal system, please call 400-622-6298 , welcome Call us!