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System of utilizing waste heat of high-aluminum coal and gangue calcined kaolin

A technology for calcining kaolin and coal gangue, which is applied in steam generation methods using heat carriers, waste heat treatment, and energy efficiency improvement, and can solve problems such as coal gangue pollution, achieve the effects of reducing surface temperature, strengthening cooling, and realizing waste heat recovery

Inactive Publication Date: 2019-03-29
SHANDONG JINPU NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the coal gangue pollution problem in the coal production industry, the present invention provides a high-aluminum coal and coal gangue calcined kaolin waste heat utilization system; Coal gangue is transformed into kaolin, which is widely used in industrial production, turning waste into treasure and harm into profit. At the same time, the waste heat generated in the process of calcining kaolin is used to generate electricity. While solving coal gangue pollution and resource utilization, it is realized It can extract and utilize the heat contained in high-alumina coal and coal gangue, which is in line with my country's basic national policy of energy conservation and emission reduction, and has important promotion and application value

Method used

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  • System of utilizing waste heat of high-aluminum coal and gangue calcined kaolin

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Embodiment 1

[0029]A high-aluminum coal and coal gangue calcined kaolin waste heat utilization system, including a calcining device, a cooling device, a denitrification device, a first dust removal device, a steam generator, a steam turbine unit, a generator unit, a desulfurization device, a second dust removal device, and a first fan , the calcination device is provided with a feed port and a discharge port, the calcination device is connected to the denitrification device through the flue gas pipeline on the side of the feed port, the denitrification device is connected to the first dust removal device through the pipeline, and the first dust removal device is connected to the steam generation through the pipeline. The steam generating device is connected to the steam turbine unit through the pipeline, the steam turbine unit is connected to the generator set, the steam generating device is connected to the desulfurization device through the flue gas pipeline, the desulfurization device is ...

Embodiment 2

[0032] Such as figure 1 As shown, a high-alumina coal and coal gangue calcined kaolin waste heat utilization system, the calcining device is a horizontal calcining device 1, and a burner 2 is provided at the discharge end of the horizontal calcining device 1.

[0033] Described cooling device is horizontal cooling device 3, and the feed inlet of horizontal cooling device 3 links to each other with the discharge port of calcination device, and cold air enters from the discharge end of horizontal cooling device 3, and from the outlet of horizontal cooling device 3 The feed end enters the discharge end of the calcining device 1 .

[0034] The horizontal cooling device 3 includes a cooling cylinder and a second fan 4. Heat exchange blades are welded on the outer wall of the cooling cylinder. The heat exchange blades are provided with a sheath outside. A closed airtight space is formed between the outer wall of the cooling cylinder and the sheath. The interlayer, the second fan 4 ...

Embodiment 3

[0043] figure 2 It is a waste heat utilization system for calcining kaolin with high alumina coal and coal gangue using a vertical calcination device.

[0044] The calcining device is a vertical calcining device 22, comprising a calcining device housing 221, the lower part of the calcining device housing 221 is connected to the base 16, the upper part of the calcining device housing is provided with a feeding port 25, and the lower part is provided with a discharge port. The lower part of the feed opening is provided with a lifting seat 18, and the lifting seat 18 is connected with the lifting seat driving device 19, and the lifting seat driving device 19 is connected with the base, and the base is connected with the supporting legs 17 of the bottom. The gap between the lifting seat 18 and the discharge port is adjusted by the lifting seat driving device 19, and a burner 15 is arranged at an upper position close to the height direction of the calcination device shell, and the...

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Abstract

The invention discloses a system of utilizing the waste heat of high-aluminum coal and gangue calcined kaolin. The system comprises calcining equipment, cooling equipment, denitration equipment, a first dust collector, a steam generating plant, a steam turbine set, a generator set, a desulfurizer, a second dust collector and a first fan; a charging hole and a discharge hole are formed in the calcining equipment; the calcining equipment is connected with the denitration equipment through a flue gas pipeline at one side of the charging hole; the denitration equipment is connected with the firstdust collector; the first dust collector is connected with the steam generating plant through a pipeline; the steam generating plant is connected with the steam turbine set through a pipeline; the steam turbine set is connected with the generator set; the steam generating plant is connected with the desulfurizer through the flue gas pipeline; the desulfurizer is connected with the second duct collector through a pipeline; the second dust collector is connected with the first fan; and the calcining equipment is connected with the cooling equipment. The system disclosed by the invention eliminates the gangue pollution, realizes the comprehensive utilization of the waste heat during the resource utilization of gangue, and has an obvious energy saving and emission reduction effect.

Description

technical field [0001] The invention relates to the technical field of coal gangue processing and utilization, in particular to a high-alumina coal and gangue calcined kaolin waste heat utilization system. Background technique [0002] Kaolin is a non-metallic mineral. High-quality kaolin is white, delicate, soft soil, has good physical and chemical properties such as plasticity and fire resistance, and is widely used in papermaking, ceramics, building materials, petroleum, chemicals, rubber, textiles, coatings, medicine, pesticides, national defense and other industries. It is an important raw material for industrial production. [0003] Coal gangue is a kind of black-gray rock with low carbon content that is associated with coal seams during the coal-forming process. It is a solid waste generated during coal mining or coal washing in the coal industry. In coal seams containing more gangue, there are often high-alumina coals. A large amount of coal gangue produced in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00F22B1/18C01B33/40
CPCC01B33/40F22B1/18F27D17/004F27D2017/006Y02P10/25Y02P20/10Y02P20/129
Inventor 赵华星
Owner SHANDONG JINPU NEW MATERIAL CO LTD
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