Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process

A technology for low-temperature waste heat and power generation equipment, which is applied in cement production, lighting and heating equipment, clinker production, etc. It can solve problems such as heavy pollution, troublesome operation, waste of resources, etc., and achieve optimal system configuration, environmental protection, and heat reduction. pollution effect

Inactive Publication Date: 2005-03-30
CITIC HEAVY INDUSTRIES CO LTD
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Problems solved by technology

The disadvantages of this technology are obvious: ① Due to the use of post-combustion boilers, the whole system is more complicated than a small thermal power p

Method used

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  • Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process

Examples

Experimental program
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Example Embodiment

[0026] like figure 12 and 2: The pure low-temperature waste heat power generation equipment system of a large-scale dry process cement production line has a dual-pressure waste heat boiler at the kiln head that is installed at the kiln head to undertake all public heating functions and generate all low-pressure steam, and at the same time undertake to generate part of high-pressure steam ( 18), (20); the kiln tail waste heat boiler (26), which is mainly responsible for generating high-pressure steam, is installed at the kiln tail; the high-pressure main steam generated by the two waste heat boilers is mixed and then enters the steam-enhancing condensing turbine (24 ), the low-pressure steam enters the steam turbine through the supplementary steam pipeline; the exhaust steam at the tail of the steam turbine enters the condenser (21), and the condensed water enters the vacuum deaerator (27) through the condensate pump (19) and the pipeline, and in the deaerator, it passes through...

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Abstract

The invention is an electric generator system using low temperature afterheat of large-scale dry cement production line, which has two kiln head double-pressure afterheat boilers for heating, producing the whole low pressure steam and simultaneously producing partial high-pressure steam; a kiln tail afterheat boiler mainly for producing high pressure steam; the high pressure steam produced by the two afterheat boilers are mixed and then enter through pipeline into a steam -supply and -condensing steam turbine, and the low pressure steam enters in the steam turbine through steam supply pipeline; the blast steam at the tail of the turbine enters in a condenser, the condensed water enters in a vacuum deoxygenator through a condensed water pump and pipeline, the deoxygenated water in the deoxygenator is supplied through water supply pump into the boiler; the exhaust gas produced by a kiln tail preheater of cement production line is led in the kiln tail afterheat boiler through reformed pipeline.

Description

Technical field: [0001] The invention relates to the technical field of pure low-temperature waste heat power generation, and is suitable for power generation by using low-temperature flue gas waste heat in production lines of cement, steel, building materials, chemicals and ceramics, especially the pure low-temperature waste heat power generation equipment system and process flow of large-scale dry-process cement production lines. technical background: [0002] As we all know, in industrial enterprises such as cement, steel, building materials, chemicals, and ceramics, there are a large number of waste heat resources such as medium and low temperature flue gas, waste steam, and waste hot water that are discharged outside 24 hours a day below 400 °C. The energy they carry belongs to medium and low temperature waste heat. If not utilized, a large amount of waste heat resources will be wasted in vain. [0003] At present, there are roughly two ways to utilize the waste heat r...

Claims

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Application Information

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IPC IPC(8): F27D17/00
CPCY02P10/25Y02P40/121
Inventor 王继生彭岩叶长虹王新建仝伟峰陈付平张凯张晓玲
Owner CITIC HEAVY INDUSTRIES CO LTD
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