Tail heat utilization and dust removal integrated coal fired boiler

A coal-fired boiler, an integrated technology, applied in the field of coal-fired boilers, can solve the problems of personnel and equipment safety accidents, strong vibration, etc., and achieve the effects of reliable use, high strength and easy production

Active Publication Date: 2015-11-04
湖北布实非织造布有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once part of the hardened dust is shaken off, it will immediately leave the dynamic rotation balance of the induc

Method used

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  • Tail heat utilization and dust removal integrated coal fired boiler
  • Tail heat utilization and dust removal integrated coal fired boiler
  • Tail heat utilization and dust removal integrated coal fired boiler

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Embodiment Construction

[0031] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0032] Such as figure 1 , figure 2 , image 3 and Figure 4 The exhaust heat utilization and dust removal integrated coal-fired boiler shown in the figure includes boiler main body 1, boiler exhaust pipe 3, boiler sewage pipe 2, cyclone dust removal tail heat efficient utilization device 4 and induced draft fan A, and cyclone dust removal tail heat efficient utilization device 4 consists of columns The tubular heat exchanger 6 and the cyclone dust collector 7 are superimposed. The boiler tail gas pipe 3 is connected to the cyclone dust collector 7 tangentially. Cone, evenly dispersed through the tubes, concentrated by the upper cone bucket and then discharged from the exhaust pipe 12 through the induced draft fan A; the high-level pool 13 is connected to the lower part of the 6 shell side of the tube heat exchanger, and the 6 shell side of the tube heat exchanger T...

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Abstract

The invention discloses a tail heat utilization and dust removal integrated coal fired boiler. According to the tail heat utilization and dust removal integrated coal fired boiler, a tail gas pipe of the boiler is tangentially connected with a cyclone dust remover, and dust is discharged at the cone base through a closed-air aspirator after rotational flow dust removal; tail gas is connected with a cone through a rotational flow ascending pipe and penetrates row pipes after being uniformly dispersed, and the tail gas is centralized by a cone hopper on the upper portion and exhausted out by an induced draft fan through an exhaust pipe; an impeller of the induced draft fan is of a structure with blades in a hollow wedge shape and a backboard is in a dish shape; and the shape contour line of the induced draft fan is an involute. According to the tail heat utilization and dust removal integrated coal fired boiler, tail heat utilization and the dust removal of the boiler are creatively integrated, and a cyclone dust removal tail heat efficient using device is designed; the tail heat utilization and the dust removal are completed in one step, the equipment input is reduced, and the working efficiency is also improved; by means of the structure with the blades in the hollow wedge shape and the backboard in the dish shape, the real-time cleaning of the dust on the impeller of the induced draft fan and the increase of the strength of the impeller of the draught fan are achieved, the stability is improved, and safety accidents caused by dust accumulation are effectively eradicated; and the application prospect is wide.

Description

technical field [0001] The invention relates to a coal-fired boiler, and specifically refers to an integrated coal-fired boiler with tail heat utilization and dust removal in which the fan does not accumulate dust. Background technique [0002] Boilers are very commonly used thermal power equipment. Coal-fired boilers are still one of the main preferred equipment for heating due to mature technology and low fuel costs. However, coal-fired boilers need to Perform tail heat utilization, dust removal, harmful gas purification and other operations on the tail gas. [0003] The induced draft fan is the key equipment for coal-fired boilers to realize tail heat utilization and dust removal. Most of the induced draft fans for boilers are centrifugal fans. The continuous, stable and reliable operation of the induced draft fans is very important. Because most of the occasions where coal-fired boilers are used contain certain dust , When the induced draft fan is working, when the air ...

Claims

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Application Information

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IPC IPC(8): F23J15/00B01D45/16B01D45/18F04D29/28F04D29/30F04D29/42
Inventor 张旭张鹏银永忠张思言张驰
Owner 湖北布实非织造布有限公司
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