CN204987058U - Vulcanize bed boiler NOx processing system - Google Patents

Abstract

The utility model is a NOx treatment system for a fluidized bed boiler. A cooling zone is arranged in the tail gas discharge pipe of the fluidized bed boiler, and a carbon nanofiber carrier is arranged at the outlet of the cooling zone. NOx treatment without controlling the internal temperature of the boiler will not cause fuel waste and reduce production costs.

Description

Fluidized bed boiler NOx treatment system

technical field

The utility model belongs to the field of chemical machinery, in particular to a NOx treatment system for a fluidized bed boiler.

Background technique

Fluidized bed boilers can burn different types of fuels, and there is a large amount of NOx in the exhaust gas after combustion. If it is discharged directly, it will cause serious pollution to the atmospheric environment. At present, the method of controlling the temperature of the fluidized bed boiler is mostly used to suppress the formation of NOx, so that the NOx content in the flue gas is greatly reduced. However, strictly controlling the internal temperature of the fluidized bed boiler will reduce the efficiency of the fluidized bed boiler and cause fuel waste.

Contents of the invention

In order to overcome the deficiencies of the above-mentioned prior art, the purpose of this utility model is to provide a NOx treatment system for fluidized bed boilers, which can effectively remove NOx in the tail gas of fluidized bed boilers. The whole system has simple structure, wide source of raw materials, and low cost.

In order to achieve the above object, the technical solution adopted by the utility model is:

The NOx treatment system of the fluidized bed boiler includes a cooling zone 3 set in the tail gas discharge pipe 2 of the fluidized bed boiler 1 , and a carbon nanofiber carrier 4 is set at the outlet of the cooling zone 3 .

Compared with the prior art, the utility model can realize the treatment of NOx in the exhaust gas of the boiler with a simple device without controlling the internal temperature of the boiler, causing no waste of fuel and reducing the production cost.

Description of drawings

Accompanying drawing is the structural representation of the utility model.

detailed description

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

As shown in the drawings, the utility model is a NOx treatment system for a fluidized bed boiler, which includes a cooling zone 3 set in the tail gas discharge pipe 2 of the fluidized bed boiler 1, and a carbon nanofiber carrier 4 is set at the outlet of the cooling zone 3.

The working process of the present utility model is:

The high-temperature exhaust gas discharged from the fluidized bed boiler 1 is cooled by the cooling zone 3, the temperature drops below 40°C, and then passes through the carbon nanofiber carrier 4. The carbon nanofiber has a good adsorption effect on NOx, and a large amount of NOx is adsorbed, eliminating the exhaust gas NOx in.

The above descriptions are only based on the preferred embodiments of the present utility model, and cannot limit the scope of the present utility model. Any replacement, combination, and separation of components known in the technical field to the utility model, and equivalent changes or replacements to the implementation steps of the utility model that are well known in the technical field all do not exceed the protection scope of the utility model.

Claims (1)

1. The NOx treatment system of the fluidized bed boiler is characterized in that it comprises a cooling zone (3) arranged in the tail gas discharge pipe (2) of the fluidized bed boiler (1), and the outlet position of the cooling zone (3) is provided with carbon nanofibers carrier (4).