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氣力輸送設備脈沖除塵器中的影響因素

文章來源: 作者:羅茨機電 發布時間:2021-12-14 瀏覽次數:440

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1、操作條件通常情況下、低溫操作有利于物理吸附,適當升高溫度有利于化學吸附。但采取升溫還是降溫,必須以吸附過程中吸附烙變為依據。若烙變為正值,則溫度升高對吸附操作有利;相反則降低溫度對吸附過程有利。溫度對氣相吸附的影響比對液相吸附的影響大。對于氣體吸附,壓力增加有利于吸附,壓力降低有利于解吸。

1. Under normal operating conditions, low temperature operation is conducive to physical adsorption, and appropriately increasing the temperature is conducive to chemical adsorption. However, whether to raise or lower the temperature must be based on the change of adsorption during the adsorption process. If the soldering becomes positive, the increase of temperature is beneficial to the adsorption operation; On the contrary, reducing the temperature is beneficial to the adsorption process. The effect of temperature on gas phase adsorption is greater than that on liquid phase adsorption. For gas adsorption, the increase of pressure is conducive to adsorption, and the decrease of pressure is conducive to desorption.

2、吸附劑的性質,吸附劑的性質如孔隙率、孔徑、粒度等,影響比表面積,從而影響吸附效果。一般說來,吸附劑粒徑越小或微孔越發達,其比表面積越大,吸附容量也越大。但在液相吸附過程中,對相對分子質量大的吸附質,微孔提供的表面積不起很大作用。

2. The properties of adsorbent, such as porosity, pore size and particle size, affect the specific surface area and thus the adsorption effect. Generally speaking, the smaller the particle size of adsorbent or the more developed the micropores, the larger the specific surface area and the larger the adsorption capacity. However, in the process of liquid phase adsorption, the surface area provided by micropores does not play a great role in the adsorbate with large relative molecular weight.

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3、吸附質的性質與濃度對于氣相吸附,吸附質的當量直徑、相對分子質量、沸點、飽和性等影響吸附量。若用同種活性炭作吸附劑,對于結構相似的有機物,相對分子質量和不飽和性越大,沸點越高,越易被吸附。對于液相吸附,吸附質的分子極性、相對分子質量、在溶劑中的溶解度等影響吸附量。相對分子質量越大,分子極性越強,溶解度越小,越易被吸附。吸附質濃度越高,吸附量越少。

3. The properties and concentration of adsorbate affect the gas phase adsorption, and the equivalent diameter, relative molecular weight, boiling point and saturation of adsorbate affect the adsorption capacity. If the same activated carbon is used as adsorbent, the higher the relative molecular weight and unsaturation, the higher the boiling point and the easier it is to be adsorbed. For liquid phase adsorption, the molecular polarity, relative molecular weight and solubility in solvent of adsorbate affect the adsorption capacity. The greater the relative molecular weight, the stronger the molecular polarity, the smaller the solubility, and the easier it is to be adsorbed. The higher the concentration of adsorbate, the less the adsorption capacity.

4、吸附劑的活性吸附劑的活性是吸附劑吸附能力的標志,常以吸附劑上所吸附的吸附質量與所有吸附劑量之比的百分數來表示。其物理意義是單位吸附劑所能吸附的吸附質量。

4. Activity of adsorbent the activity of adsorbent is a sign of the adsorption capacity of adsorbent, which is often expressed as the percentage of the ratio of the adsorption quality adsorbed on the adsorbent to all adsorption doses. Its physical meaning is the adsorption mass that can be adsorbed by unit adsorbent.

5、接觸時間吸附操作時,應保證吸附質與吸附劑有一定的接觸時間,使吸附接近平衡,充分利用吸附劑的吸附能力。吸附平衡所需的時間取決于吸附速率,一般要通過經濟權衡,確定好接觸時間。

5. Contact time during adsorption operation, it shall be ensured that the adsorbate has a certain contact time with the adsorbent to make the adsorption close to equilibrium and make full use of the adsorption capacity of the adsorbent. The time required for adsorption equilibrium depends on the adsorption rate. Generally, the contact time should be determined through economic trade-off.

脈沖除塵器的吸附器的性能對吸附效果有較顯著的影響,應合理設計吸附器的結構、吸附層的鋪設等,以保證吸附器發揮優良的吸附性能。

The performance of the adsorber of the pulse dust collector has a significant impact on the adsorption effect. The structure of the adsorber and the laying of the adsorption layer should be reasonably designed to ensure the excellent adsorption performance of the adsorber.

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