Integrated gas-type pearlite expansion apparatus based on spiral tube heat exchange

Abstract

The invention discloses an integrated gas-type pearlite expansion apparatus based on spiral tube heat exchange, comprising an expander body, a spiral heat exchange line, a natural gas delivery line, an air delivery line and a gas burner. The expander body is provided with a hearth; the spiral heat exchange line is arranged in the hearth; the gas burner includes a gas mixing cavity and a gas nozzle; the gas delivery line and the spiral heat exchange line are communicated with the gas mixing cavity respectively through a natural gas inlet and an air inlet; an incoming gas tube of the gas nozzleis communicated with ta mixed gas outlet; the flow discharge end of a blower is connected with a gas inlet of the air delivery line; a gas outlet of the air delivery line is communicated with the spiral heat exchange line. High-temperature hot air can be mixed well quickly in the gas mixing cavity; instant mixing heating of natural gas is achieved to form high-temperature mixed fuel gas, the gas burner can ignite high-temperature mixed fuel gas more easily, and fuel burning rate is increased.

Description

technical field [0001] The invention relates to a perlite expansion device, in particular to an integrated gas-fired perlite expansion device based on spiral tube heat exchange. Background technique [0002] Expanded perlite has the characteristics of light apparent density, low thermal conductivity, good chemical stability, wide temperature range, low moisture absorption capacity, non-toxic, odorless, fireproof, sound absorption, etc. It is widely used in various industrial sectors. Expanded perlite is a kind of white granular light-weight and multi-functional new material with a honeycomb structure inside that is made of perlite ore preheated by a preheating furnace and expanded by instantaneous high-temperature roasting. The principle is: perlite ore Perlite ore with a certain particle size is formed after crushing. The perlite ore is preheated and roasted by an appointment device, and rapidly heated by an expansion furnace (above 1000 ℃), so that the moisture contained i...

AI Technical Summary

Problems solved by technology

However, when natural gas is mixed with normal temperature (room temperature and ambient temperature) and air at normal temperature (room temperature and ambient temperature) in a certain ratio for combustion, especially in cold climates, it is easy to cause long-term ignition and difficult ignition and natural gas fuel combustion. Insufficient problems not only affect production efficiency, but also lead to low combustion rate of natural gas fuel and increase production cost

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