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由于透水砖在烧制的过程中，是很容易差生烟气的，而烟气也是比较污染环境的，根据相关环境标准的需求，我们在烧制的过程中就需要做好烟气的处理，接下来我们来简单的了解下，如何更好的控制烟气排放。

Due to the fact that permeable bricks are prone to producing smoke during the firing process, which can also pollute the environment, according to relevant environmental standards, it is necessary to properly treat the smoke during the firing process. Next, let's briefly understand how to better control smoke emissions.

1、烟气特性：在透水砖的生产过程中，一次和二次烧制过程是有区别的。隧道窑焙烧过程中，高温烟气或余热烟气由锅炉引风机泵送至烘房烘干青砖；

1. Smoke characteristics: In the production process of permeable bricks, there are differences between the primary and secondary firing processes. During the tunnel kiln roasting process, high-temperature flue gas or waste heat flue gas is pumped by the boiler induced draft fan to the drying room to dry the green bricks;

2、焚烧前阶段：焚烧前阶段，透水砖应尽量采用工业废渣作为燃料，如粉煤灰、锅炉渣，其间SO2含量低，焚烧后，烟气中的SO2的损害也较小。其次，必须严格选择硫含量低于1%的原煤作为燃料。

2. Pre incineration stage: In the pre incineration stage, permeable bricks should use industrial waste residue as fuel as much as possible, such as fly ash and boiler slag, where the SO2 content is low. After incineration, the damage to SO2 in the flue gas is also relatively small. Secondly, it is necessary to strictly select raw coal with a sulfur content below 1% as fuel.

3、焚烧中段：透水砖焚烧中段，炉内掺入钙元素，烟气脱硫方式受外投煤焚烧条件控制，钙元素质脱硫剂与原煤中的SO2无法接触一盏茶，脱硫效率低，使用较少。

3. Incineration middle section: Permeable brick incineration middle section, calcium element is added to the furnace, and the flue gas desulfurization method is controlled by the external coal incineration conditions. Calcium based desulfurizers cannot contact a cup of tea with SO2 in the raw coal, resulting in low desulfurization efficiency and less use.

如果说，透水砖在生产加工过程中能够改变升级一下生产工艺，可以有效改变现有的烟气排放量，有助于环保行业建设。所以大家在日后的烧制过程中，也一定要做好烟气的排放处理工作，为我们的环境保护出一份力。

If permeable bricks can change and upgrade their production process during production and processing, it can effectively change the existing smoke emissions and contribute to the construction of the environmental protection industry. So in the future firing process, everyone must also do a good job in the emission treatment of smoke, and contribute to our environmental protection.