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Coal injection system for Maerz coal kiln

A Maerz and pulverized coal technology, which is applied in the field of pulverized coal injection system of coal-fired Maerz kiln in Switzerland, can solve the problems of increased initial investment and operating costs, energy waste, and complex pulverized coal injection system

Inactive Publication Date: 2013-12-25
孙家鼎
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  • Claims
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Problems solved by technology

[0002] The coal-fired Maerz kiln originally used the warehouse pump type pneumatic powder feeding system and the weight loss method to intermittently monitor the small flow powder feeding system. The operation mode makes the pulverized coal injection system complicated, resulting in a substantial increase in initial investment and operating costs and a waste of energy

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  • Coal injection system for Maerz coal kiln

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Embodiment Construction

[0011] In the attached drawing, taking the 600t / d co-current regenerative double-chamber fine-grained Maerz kiln injection pulverized coal system as an example, its powder delivery is about 0.4-0.5kg / s, and its characteristic is that the powder delivery is small, Since the general impeller powder feeder cannot monitor the small flow of powder, it is necessary to integrate the rotary air-lock powder feeder (3) and the fine powder measurement device (4) to monitor the small flow of pulverized coal. Canceling the warehouse pump and its related valve accessories, and replacing it with a warehouse-free pump type conveying system can simplify the pulverized coal conveying system, and can continuously and safely convey, and can prevent the conveyed gas from going up, ensuring the safe operation of the dust collector, and can be online Real-time monitoring of the mass flow of pulverized coal fed into the coal-fired Maerz kiln and online display of instantaneous and cumulative average m...

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Abstract

A coal injection system for a 600t / d Swiss Maerz coal kiln is transformed into a barn pump-free type energy continuous conveying system. A rotating air-locking type pulverized coal feeder is adopted by a sending system thereof for sending powder to a powder accurate measuring device; the instant and accumulated mean quality fluxes of small-flow coal powder can be monitored on-line; a coal powder conveying system is greatly simplified; more equipment and related accessories are saved; and the constructing, maintaining and managing costs are greatly lowered.

Description

technical field [0001] This patent relates to the technical field of a pulverized coal injection system for a Swiss coal-fired Maerz kiln. Background technique [0002] The coal-fired Maerz kiln originally used the warehouse pump type pneumatic powder feeding system and the weight loss method to intermittently monitor the small flow powder feeding system. The operation mode makes the pulverized coal injection system complicated, resulting in a substantial increase in initial investment and operating costs and a waste of energy. Contents of the invention [0003] The purpose of this patent is to change the operating mode of the Swiss coal-fired Maerz kiln, which originally used a warehouse pump type intermittent pneumatic conveying system and adopts a weightless method to intermittently monitor small flow powder feeding, into a continuous type without a warehouse pump Pneumatic injection pulverized coal system is used to overcome some disadvantages of the warehouse pump ty...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K3/02
Inventor 孙家鼎
Owner 孙家鼎
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