1.處理風量（Q）

1. Processing air volume (Q)

合理的選擇處理風量常常是根據工藝情況和經驗來決定的。所以我們要選擇對此工況比較熟悉了解以及有著多年豐富經驗的廠家。

The reasonable selection of processing air volume is often determined based on process conditions and experience. So we should choose manufacturers who are familiar with and have years of rich experience in this working condition.

（1）根據風量設計或選擇袋式除塵器時，一般不能使除塵器在超過規(guī)定風量的情況下運行，否則，濾袋容易堵塞，壽命縮短，壓力損失大幅度上升，除塵效率也要降低；

(1) When designing or selecting a bag filter based on air volume, it is generally not advisable to operate the filter beyond the specified air volume. Otherwise, the filter bag is prone to clogging, shortened lifespan, significantly increased pressure loss, and reduced dust removal efficiency;

（2）但也不能將風量選的過大，否則增加設備投資和占地面積。

(2) But the air volume cannot be selected too high, otherwise it will increase equipment investment and land area.

2.入口含塵濃度

2. Dust concentration at the inlet

即入口粉塵濃度，這是由揚塵點的工藝所決定的。而入口含塵濃度又影響著以下因素：

The concentration of dust at the inlet is determined by the process of the dust point. The concentration of dust at the inlet also affects the following factors:

（1）其腐蝕性和磨損量可以認為與含塵濃度成正比

(1) Its corrosiveness and wear can be considered directly proportional to the dust concentration

（2）入口濃度增大，同一過濾面積上積灰速度快，壓力損失隨之增加，結果是不得不增加清灰次數。

(2) As the inlet concentration increases, the speed of ash accumulation on the same filtration area increases, and the pressure loss increases accordingly. As a result, it is necessary to increase the number of ash cleaning times.

（3）根據濃度大小看是否有必要在除塵器入口處前再增加一級除塵設備

(3) It is necessary to add another level of dust removal equipment before the inlet of the dust collector based on the concentration level

（4）入口濃度大的不宜采用正壓操作方式，這目的是為了減少風機的磨損。

(4) It is not advisable to use positive pressure operation for high inlet concentration, in order to reduce the wear of the fan.

華康選型合理的倉頂除塵器

Huakang selects a reasonable warehouse top dust collector

3.出口濃度。

3. Export concentration.

袋式除塵器的出口濃度一般排放濃度都能達到50 g/Nm3以下，甚可以達到30 g/Nm3，能很好的達到的排放濃度標準。

The outlet concentration of bag filters can generally reach below 50 g/Nm3, and even up to 30 g/Nm3, which can well meet the national environmental emission concentration standards.

4.使用溫度。

4. Use temperature.

對袋式除塵器來說，使用溫度與除塵效率關系并不明顯。

For bag filters, the relationship between operating temperature and dust removal efficiency is not significant.

（1）由于玻纖濾料的大量選用，其高使用溫度可達280℃，對高于這一溫度的氣體必須采取降溫措施。

(1) Due to the extensive use of fiberglass filter materials, their high operating temperature can reach 280 ℃, and cooling measures must be taken for gases above this temperature.

（2）對低于露點溫度的氣體必須采取提溫措施。

(2) Heating measures must be taken for gases below the dew point temperature.

5.過濾速度。

5. Filtering speed.

一般情況下，袋式除塵器過濾面積確定了，那么其處理風量的大小就取決于過濾速度的選定，公式為： Q = v × s × 60 （m3/h） 式中： Q — 處理風量 v — 過濾風速（m/min） s — 總過濾面積（m2） 注明： 過濾面積（m2）＝處理風量（m3/h）／（過濾速度（m/min）x60）

In general, if the filtering area of a bag filter is determined, the size of its processing air volume depends on the selection of filtering speed, and the formula is: Q=v ×  S ×  In the 60 (m3/h) formula: Q - processing air volume v - filtering air speed (m/min) s - total filtering area (m2), indicate: filtering area (m2)=processing air volume (m3/h)/(filtering speed (m/min) x 60)