Rotary drum type VOC adsorption machine

Abstract

The invention discloses a rotary drum type VOC adsorption machine structure which is characterized in that a chassis assembly, a cylindrical shell assembly, an arch-shaped top cover assembly and a topair pipe assembly are connected in a welded mode from bottom to top to form a cavity; the rotary drum supporting assembly is arranged at the bottom of the center of the cavity and supports the rotarydrum assembly and the desorption airflow pipeline assembly which are arranged in the center of the cavity; an inlet of the desorption airflow pipeline assembly is connected with the top air pipe assembly, and the lower part is fixed on the rotary drum supporting assembly; the sealing area assembly is arranged between the rotary drum assembly and the desorption airflow pipeline assembly and divides the rotary drum assembly and the desorption airflow pipeline assembly in a sealed mode; the guide roller assembly is suspended below the arch-shaped top cover assembly, supports the rotary drum assembly from the side surface and is used for bearing the radial dumping force of the rotary drum; the transmission assembly is in driving connection with the rotary drum assembly to provide rotating power; and the transmission shaft sealing assembly seals the rotary drum assembly.

Description

technical field [0001] The invention relates to a drum-type VOC (volatile organic pollutant) adsorption machine, which belongs to the field of waste gas environmental protection treatment and dehumidification equipment. Background technique [0002] At present, the molecular sieve adsorption process is the mainstream technology in the field of waste gas VOC treatment and air dehumidification treatment. The adsorption molecular sieve element is made of porous materials such as zeolite, activated carbon, resin, silica gel, etc., and is used to absorb VOC-containing gases or water vapor of different components. Loaded in a rotary or drum-type adsorption machine to achieve continuous adsorption and desorption of VOC components or water vapor components in the exhaust gas, the molecular sieve element needs to be regularly regenerated to remove the impurities retained inside and restore its Adsorption function. The rotary drum adsorption machine was invented by Japan Toyobo Co., ...

AI Technical Summary

Problems solved by technology

[0003] Since the invention of the drum-type VOC adsorption machine, the long-term use experience shows that the traditional drum-type adsorption machine has the following disadvantages: (1) It adopts a square cylinder body, which is easy to deform and cracks when the wind pressure is high. When it contains toxic components, there is a hidden danger of leakage to the environment, and the deformation of the cylinder body also drives the relative displacement between the sealing arc plate of the desorption flow channel and the drum, deviating from the initially set sealing position, and increasing the gap between the desorption airflow and the treatment airflow. Leakage; (2) The rotation axis of the drum is guaranteed by the bottom center bearing, the top surface composed of several load-bearing rollers and the multiple roller bearings arranged on the outer periphery of the upper cover of the drum. The structure is complex, and the roller bearings are fixed on the structure. Weak parts are vulnerable to damage and failure, the maintenance space is narrow, and the operation is inconvenient; (3) The drive reducer is installed under the bottom seal plate of the drum inside the machine body, making maintenance difficult. Considering the explosion protection of the motor, the motor needs to be placed outside the machine body separately. A flexible transmission shaft is set between the reducer and the motor, and the structure is complex; (4) The dynamic and static seals of the drum and the air outlet duct of the treatment air adopt the contact sliding sealing method of the sealing strip and the cover plate of the upper cylinder, and the sealing strip is easily damaged and fails. Afterwards, the leakage of the untreated airflow to the treated airflow is greatly increased, which reduces the desorption efficiency, and the rotating resistance of the drum caused by the sealant strip is relatively large, and the replacement space for the sealant strip is narrow, and the replacement operation is difficult

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