Desulfurized ash delivery device

Abstract

The invention provides a desulfurized ash delivery device which comprises a general ash hopper arranged below a secondary dust remover. The general ash hopper is provided with a plurality of ash hoppers. Each ash hopper is connected with the general ash hopper through a switch valve and a first extensible node. The general ash hopper is connected with an air supply pipe and is provided with a chute. The chute is connected with a first ash delivery channel. The first ash delivery channel is connected with a middle connecting pipe. The middle connecting pipe is connected with a shutoff valve. A first exhaust gas opening is formed in the upper portion of the middle connecting pipe. The middle connecting pipe is connected with a feeding machine. The shutoff valve is connected with a second ash delivery channel. The second ash delivery channel is connected with a third ash delivery channel through a diverting device. The other end of the third ash delivery channel is sequentially connected with a second extensible node and a connecting pipe. A second exhaust gas opening is formed in the upper portion of the connecting pipe. The desulfurized ash delivery device is capable of delivering desulfurized ash smoothly to a rection tower and preventing phenomena of building bridge, erecting bridge and jam from occurring in the process of the desulfurized ash delivery.

Description

technical field [0001] The invention relates to a pneumatic conveying device for powdery materials, more specifically relates to a desulfurized ash conveying device, and belongs to the field of auxiliary equipment for circulating fluidized bed desulfurization. Background technique [0002] As my country controls and reduces SO 2 With the continuous increase of emissions, flue gas desulfurization has entered a stage of rapid development, and a desulfurization system is used; during the desulfurization process, the circulating desulfurization ash can be smoothly transported to the reaction tower through the desulfurization ash conveying equipment. However, the current desulfurization ash conveying equipment has the following disadvantages: [0003] 1. The desulfurization ash is not easy to be smoothly transported to the reaction tower through the desulfurization ash conveying equipment; [0004] 2. The fluidity of circulating desulfurization ash is poor during the process of...

AI Technical Summary

Problems solved by technology

[0003] 1. Desulfurization ash is not easy to be smoothly transported to the reaction tower through the desulfurization ash conveying equipment;

[0004] 2. The fluidity of circulating desulfurization ash is poor during the process of being smoothly transported to the reaction tower through the desulfurization ash conveying equipment, resulting in "bridging", "bridging" and "jamming" of materials;

[0005] 3. In the process of the circulating desulfurization ash being successfully transported to the reaction tower through the desulfurization ash conveying equipment, the desulfurization ash is often not conveyed smoothly, and the material is not easy to be conveyed away

[0006] 4. When the circulating desulfurization ash is successfully transported to the reaction tower through the desulfurization ash conveying equipment, the flow and conveying of the desulfurized ash in the desulfurization ash conveying equipment should not be observed at any time

[0007] 5. The amount of desulfurized ash entering the reaction tower through the desulfurized ash conveying equipment is uncontrollable, which cannot meet the actual demand of the reaction tower for desulfurized ash

[0008] 6. The air source of the desulfurization ash conveying equipment adopts a centrifugal fan, but the back pressure is relatively high when the desulfurization ash is conveyed, and the outlet pressure of the fan is small, so the desulfurization ash cannot be conveyed smoothly

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