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CN-224201709-U - Multichannel integrated heat accumulating type burner

CN224201709UCN 224201709 UCN224201709 UCN 224201709UCN-224201709-U

Abstract

The utility model relates to a multichannel integrated heat accumulating type burner, which is characterized in that a plurality of air passage groups are respectively arranged on the left side and the right side of the burner in a vertical row, the air passage groups on two sides are sequentially arranged in a staggered manner along the vertical direction, each air passage group comprises an air passage and a gas passage which are arranged on the same plane at an included angle, and air outlets of the air passages and the gas passages are converged at the inner wall of the burner. The multi-channel integrated gas-fired furnace has the advantages that through the multi-channel integrated design, the whole air flow is dispersed and led out from a plurality of outlets, the directions of the outlets and inlets of the gas are regulated, so that a rotational flow field is formed in the furnace, the combustion efficiency is improved, meanwhile, the structure can disperse combustion points, the atmosphere of a furnace chamber is stirred by combining high-speed air flow, the temperature gradient in the furnace is reduced, the temperature uniformity in the furnace is improved, the crucible is prevented from being locally overheated or oxidized, the smelting quality is improved, the generation of thermal nitrogen oxides is restrained, the environmental protection effect is achieved, and the waste heat of the gas is alternately recovered through a heat accumulator structure, the combustion air is preheated, the consumption of the gas is reduced, and the energy saving effect is achieved.

Inventors

  • SUN JUNBO
  • YANG DAYONG
  • ZHANG FENG
  • ZHANG DAFEI
  • YANG XIHONG

Assignees

  • 南京净环热冶金工程有限公司

Dates

Publication Date
20260505
Application Date
20250421

Claims (8)

  1. 1. A multi-channel integrated heat accumulating burner is characterized in that a plurality of air passage groups are respectively arranged on the left side and the right side of the burner in a vertical row, The air flue group comprises an air flue and a gas flue which are arranged on the same plane at an included angle, and air outlets of the air flue and the gas flue are converged at the inner wall of the burner.
  2. 2. The regenerative burner of claim 1, wherein the left and right air duct sets have air ducts that are air inlet and air outlet.
  3. 3. The regenerative burner according to claim 1, wherein the inner wall of the burner is W-shaped, and the air outlets of the left and right air passage groups are respectively provided at both waist sides of the "Λ", and the air outlet directions are far from each other.
  4. 4. A regenerative burner according to claim 3, wherein the gas outlet of the gas passage is provided with an extension line of both waist sides of the "Λ", and adjacent side walls are provided with gas guide grooves corresponding to the gas outlet of the gas passage.
  5. 5. The regenerative burner of claim 1, wherein the left and right air channel groups are staggered based on a bottom projection of the burner.
  6. 6. The regenerative burner of claim 1, wherein the left and right air passage groups are vertically offset in sequence.
  7. 7. The regenerative burner of claim 1, wherein the air outlets of the air and gas channels are triangular at the inner wall of the burner based on the bottom projection of the burner.
  8. 8. The regenerative burner of claim 1, wherein the air inlets of the left and right air channels are provided with a heat accumulator comprising a honeycomb ceramic.

Description

Multichannel integrated heat accumulating type burner Technical Field The utility model relates to a multichannel integrated regenerative burner, in particular to a multichannel integrated regenerative burner for a magnesium alloy crucible melting furnace, and belongs to the technical fields of industrial heating equipment and energy-saving combustion. Background At present, in the smelting process of magnesium alloy, the traditional burner has the problems of high energy consumption, uneven temperature distribution, large pollutant discharge amount and the like. The existing regenerative burner can realize a certain energy-saving effect, but has the defects of complex structure, high installation and maintenance cost and difficulty in meeting the requirements of environmental protection and high-efficiency smelting. Therefore, there is a need to develop a new burner that is efficient, environmentally friendly and reliable to solve the above problems. Disclosure of Invention In order to solve the defects in the prior art, the utility model aims to provide a multichannel integrated regenerative burner for a magnesium alloy crucible melting furnace. In order to achieve the above object, the present utility model adopts the following technical scheme: A multi-channel integrated heat accumulating type burner is provided with a plurality of air passage groups which are respectively arranged on the left side and the right side of the burner in a vertical row, The air flue group comprises an air flue and a gas flue which are arranged on the same plane at an included angle, and air outlets of the air flue and the gas flue are converged at the inner wall of the burner. The air channels of the left and right air channel groups are air inlet channels and air outlet channels. The inner wall of the burner is W-shaped, the air outlets of the left and right air passage groups are respectively arranged at the two waist sides of the inverted V, and the air outlet directions are mutually far away. Further, the gas outlet of the gas channel is arranged on the extension line of the waist side of the inverted V, and the adjacent side wall is provided with a gas guide groove corresponding to the gas outlet of the gas channel. Based on the bottom projection of the burner, the left and right air passage groups are arranged in a staggered mode. Based on the bottom projection of the burner, the air outlets of the air passage and the gas passage are triangular at the inner wall of the burner. The left and right air passage groups are sequentially staggered vertically. The air inlets of the left and right air passages are provided with heat accumulators which comprise honeycomb ceramics. The inner diameter of the air passage is larger than that of the fuel gas passage. The utility model has the advantages that: According to the multichannel integrated regenerative burner, through the multichannel integrated design, the whole air flow is dispersed to the plurality of outlets to be led out, so that the directions of the outlets and inlets of fuel gas are regulated, a rotational flow field is formed in a smelting furnace, the mixing degree of air and fuel gas is increased, the energy loss caused by incomplete combustion is reduced, the combustion efficiency is improved, and the energy-saving effect is achieved. Meanwhile, the structure can disperse the combustion points, and the high-speed airflow is combined to stir the furnace atmosphere, so that the temperature gradient in the furnace is reduced, the temperature uniformity in the furnace is improved, the local overheating or oxidization of the crucible is avoided, the smelting quality is improved, the generation of thermal nitrogen oxides is inhibited, and the environmental protection effect is achieved. The heat accumulator is arranged at the air inlet of the air passage to absorb or supplement heat passing through the gas, and the combustion air is preheated to be more than 800 ℃ by alternately recovering the waste heat of the flue gas, so that the fuel consumption (the energy saving rate can reach 20% -40%) is remarkably reduced, the combustion peak temperature is reduced by utilizing a heat accumulation combustion technology, the generation of thermal nitrogen oxides is inhibited, the emission of pollutants is further reduced, and the energy-saving and environment-friendly effects are realized. The multichannel integrated heat accumulating type burner has the advantages of simple structure, convenience in installation, compact and reliable equipment structure, effective reduction of failure rate, reduction of maintenance cost, effective solving of the problems of high energy consumption, uneven temperature distribution, large pollutant discharge and the like of the existing magnesium alloy smelting technology, and strong practicability and wide applicability. Drawings Fig. 1 is a schematic view of the structure of the inlet side of the burner. Fig. 2 is a schematic view of the str