Active coke modular bearing device, absorbing tower and flue gas purifying method

Abstract

The invention provides an active coke modular bearing device, an absorbing tower and a flue gas purifying method. The active coke modular bearing device comprises a transmission device and multiple active coke modules, each active coke module is provided with a fixing device, and the multiple active coke modules are vertically overlapped seamlessly and then fixed to the transmission device through the fixing devices; each active coke module is of a net-shaped structure, the bottom of each active coke module is narrower than the upper portion by 3-5 cm, the height and width of each active coke module are independently 50-80 cm, and the length of each active coke module is 80-120 cm. The active coke modular bearing device can effectively reduce abrasion loss of active coke and is high in operation efficiency, airflow in the absorbing tower provided with the device is small in resistance and distributed uniformly, the active coke moves smoothly and is high in use ratio, and the removal efficiency of pollutants in flue gas can be remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of active coke flue gas purification, and relates to an active coke modular carrying device, an absorption tower and a method for purifying flue gas. Background technique [0002] Activated coke method to remove pollutants in flue gas technology as a solid phase adsorption removal technology can realize integrated removal of SO 2 , NOx, organic matter, heavy metals and dust; flue gas does not need to be reheated, no secondary pollution, no waste residue, waste water and waste gas, etc., and sulfur resources can also be recovered through adsorbent regeneration. Heat is generated during the removal reaction process. If the flue gas flow distribution is uneven, unsmooth or the active coke is stagnant, heat storage will easily occur, hot spots will occur, and even active coke will spontaneously ignite in severe cases. In order to avoid the above phenomenon, it is required that both the adsorbent activated coke ...

AI Technical Summary

Problems solved by technology

[0004] CN202237713U discloses a high-efficiency cross-flow activated coke moving bed sintering flue gas purification unit and a purification tower. The purification tower is composed of purification units, and each purification unit involves an activated coke layer, which consists of 2-4 layers of activated coke layers. The gas distribution plate is used at the inlet end of the layer, and the partitions with holes are used to separate the layers. The exhaust end of the rear layer adopts the exhaust orifice plate with exhaust holes. The specific process layout of the units in the tower is not given, and the flue gas Greater resistance

[0005] CN201572596U discloses a cross-flow moving bed desulfurization tower, comprising a desulfurization tower main body, an air inlet flue and an air outlet flue arranged on the main body, a discharge hopper arranged below the main body, and the desulfurization tower The main body includes an inlet chamber arranged in the middle, active coke layers arranged on both sides of the inlet chamber, outlet chambers respectively arranged on the sides of the active coke layer, and the inlet flue connected to the inlet chamber , the inlet chamber communicates with the active coke layer, the active coke layer communicates with the outlet chamber, and the top of the outlet chamber is connected to the outlet flue through at least one pair of conduction flues, Its flue gas treatment capacity is large, the resistance in the tower is small, and the airflow is evenly distributed, but the movement of the active coke layer in the tower is not clearly stated.

However, the contact between the hoppers is not tight, and the flue gas can directly enter the next purification device without passing through the active coke

Images