A complete set of pneumatic conveying equipment for semi-dry desulfurization

Abstract

The invention provides a special pneumatic transportation integrated device for semi-dry desulfurization, belonging to the environmental engineering field. The special pneumatic transportation integrated device for semi-dry desulfurization comprises a butterfly valve, a connecting part, a fork-shaped high-flow feeding machine, a Roots blower and an injection pump, wherein the fork-shaped high-flow feeding machine comprises a feeding hole, a barrel silo, a central shaft, an actuator, fork-shaped blades, solid plate blades and an outlet; 4-6 blades are arranged in the barrel silo, the fork-shaped blades and the solid plate blades are arranged alternatively; the feeding machine adopts the actuator to replace the traditional motor, the fork-shaped blades and the solid plate blades are in static state under a normal operation condition, the angle of the blade is required to be changed when the conveying volume of desulfurizing agents is required to be changed or the blockage phenomenon occurs, the energy consumption is saved, the transportation volume of the desulfurizing agents is improved greatly, high-flow feeding is realized, and the feeding amount can reach 50-180t / h; and the special pneumatic transportation integrated device for semi-dry desulfurization has the characteristics of low investment, small occupied area, simple equipment arrangement, low energy consumption, high feeding amount, and difficulty of blockage.

Description

technical field [0001] The invention relates to the field of environmental engineering, in particular to a complete set of pneumatic conveying equipment for semi-dry desulfurization. Background technique [0002] The "Twelfth Five-Year Plan" of the Ministry of Environmental Protection has formulated the total amount control target of sulfur dioxide. By 2015, the total emission of sulfur dioxide will be reduced by 10% compared with 2010. The annual emission reduction task determined by the Ministry of Environmental Protection in 2015 is to reduce the national sulfur dioxide emission by 3% compared with 2014. Compared with the previous four years, 2015 will become the most stringent emission reduction target during the "Twelfth Five-Year Plan" period. years. [0003] At present, the commonly used desulfurization methods include wet method, semi-dry method and dry method. The semi-dry desulfurization method is used by more and more enterprises due to its advantages of simple...

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Problems solved by technology

[0005] In order to solve a series of problems of the existing impeller feeder, such as high energy consumption, limited feeding amount, easy blockage, and high troubleshooting rate, the present invention provides a complete set of pneumatic conveying device for semi-dry desulfurization, which includes a butterfly valve and connecting parts , fork-shaped large-flow feeder, jet pump and Roots blower, wherein the butterfly valve is set at the uppermost end of the device, connected with the desulfurization tower silo, and there is a connecting piece under it, which connects the butterfly valve and the fork-shaped large-flow The feeder and the jet pump are installed at the bottom of the device, connected to the fork-shaped large-flow feeder, and the Roots blower is connected next to the jet pump. The delivery capacity of the jet pump is 40-120t / h, depending on the amount of flue gas and sulfur content The jet pumps with different conveying capacity ranges can be selected according to the quantity. The present invention has a special design on the conveying quantity of the jet pump to meet the matching with the feeder and ensure the desulfurization efficiency; the power of the Roots fan is 15-55kw, and the Luo The Roots blower not only provides the transmission power for the desulfurization agent, but also plays the role of uniform fluidization of the desulfurization agent, which makes the desulfurization agent more fluid and the desulfurization efficiency is higher. The present invention has special requirements on the power of the Roots blower. On the basis of energy saving, meet the fluidization of desulfurization agent and ensure the smooth transportation of desulfurization agent

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