Novel comprehensive energy conservation, emission reduction, production increase and efficiency enhancement type local oxygenation combustion supporting system for fuel furnace kiln

A combustion-supporting system, energy-saving and emission-reduction technology, applied in indirect carbon dioxide emission reduction, non-flammable liquid/gas transportation, furnace and other directions, can solve the problems of lack of alarm control, lack of automation, and lack of oxygen-enriched flow.

Active Publication Date: 2018-10-19
TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In order to overcome the lack of automation of the existing local oxygen-increasing and combustion-supporting devices, lack of alarm control and (on-site) emergency stop devices and interlocking with the user's DCS, no online monitoring of oxygen-enriched flow and pressure, etc., it is impossible to achieve the best match with the fuel kiln and

Method used

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  • Novel comprehensive energy conservation, emission reduction, production increase and efficiency enhancement type local oxygenation combustion supporting system for fuel furnace kiln
  • Novel comprehensive energy conservation, emission reduction, production increase and efficiency enhancement type local oxygenation combustion supporting system for fuel furnace kiln
  • Novel comprehensive energy conservation, emission reduction, production increase and efficiency enhancement type local oxygenation combustion supporting system for fuel furnace kiln

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 A "α-S type combined combustion" membrane method oxygen-enriched local oxygen-increasing combustion-supporting device for industrial chain heating boilers

[0044] For its procedure, see the attached figure 1 . The local oxygen-increasing combustion-supporting device consists of an oxygen source, a pressurization system, an oxygen-enriched high-efficiency preheater 28, a special oxygen-enriched nozzle 31, an alarm device 15, an oxygen-enriched flow transmitter 22, a micro-pressure transmitter 24, an emergency stop Device 11 and electric control system 13; wherein, by high-efficiency air filter 1, ventilator 2, membrane oxygen enrichment generator 16, electric switch valve 3, membrane oxygen enrichment protection valve 17, water ring vacuum pump 4, circulating water tank 5 It communicates with the oxygen-enriched surge tank 18 in sequence to jointly form the oxygen source of the device;

[0045] The process flow of the oxygen source is as follows: the air pa...

Embodiment 2

[0055] Example 2 A new type of "gradient combustion" cryogenic oxygen generation and local oxygen-increasing combustion-supporting device for glass melting furnaces

[0056] For its procedure, see the attached figure 2. On the basis of the structure described in Example 1, the new "gradient combustion" cryogenic oxygen generation and local oxygen-increasing combustion-supporting device for glass melting furnaces described in this example is mainly different from Example 1 in that this example The oxygen source used is a by-product of cryogenic nitrogen production. The oxygen concentration of this oxygen source is generally relatively high and not stable. Therefore, an oxygen collection cover (I37 and II39 [spare]), an oxygen collection control valve 38, and an oxygen-enriched Mixing surge tank 33, booster fan 20, oxygen-enriched air intake control valve 32, oxygen-enriched flow transmitter 22, oxygen-enriched concentration transmitter 23, micro-pressure transmitter 24, oxyge...

Embodiment 3

[0058] Example 3 A "arc combustion" membrane oxygen-enriched local oxygen-increasing combustion-supporting device for a rotary kiln

[0059] For its procedure, see the attached image 3 . On the basis of the structure described in Example 1, the main difference between the "arc combustion" film method oxygen-enriched local oxygen-increasing and combustion-supporting device for the rotary kiln described in this example and Example 1 is that the cycle is set by default. Water tank 5, electric control valve 6, magnetic flap liquid level controller Ⅰ7, solenoid valve controller Ⅰ8, magnetic flap liquid level controller Ⅱ9, solenoid valve controller Ⅱ10, magnetic flap liquid level controller Ⅲ12, combustion air Switching valve 14, oxygen-enriched surge tank 18 and high-efficiency demister tank 21; it is the step where the oxygen source is directly processed by the air-cooled reciprocating vacuum pump 41 and then enters the rotary kiln; since the oxygen-enriched amount is relativel...

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Abstract

The invention relates to a novel comprehensive energy conservation, emission reduction, production increase and efficiency enhancement type local oxygenation combustion supporting system for a fuel furnace kiln. The system comprises 'arc-shaped combustion', 'alpha-S-shaped combined combustion', 'postponed-S-shaped combined combustion', novel 'gradient combustion' and the like. The local oxygenation combustion supporting system is added beside the fuel furnace kiln. The local oxygenation combustion supporting system comprises seven parts, namely an oxygen source, a pressurization system, an oxygen enrichment efficient preheater and special oxygen enrichment nozzle, an alarm device, an oxygen enrichment flow transmitter and micropressure transmitter, a sudden stop device and an electronic control system. The local oxygenation combustion supporting system is required to be matched with the relevant furnace kiln and is further required to be matched with fuel and the corresponding combustion mode and even performance of relevant products. In addition, compared with traditional local oxygenation combustion supporting technologies, the system is perfected to a greater extent and is moreapplicable.

Description

technical field [0001] The invention relates to a new type of comprehensive energy-saving, emission-reducing, production-improving and efficiency-improving local oxygen-increasing combustion-supporting system for fuel kilns, which is suitable for various fuels and related kilns burning fuels, such as (industrial) chain furnaces, heating furnaces, (garbage ) incinerator, fluidized bed boiler, pulverized coal furnace, oil (gas, coal water slurry and water coke slurry, etc.) Comprehensive energy saving and emission reduction for glass kiln, rotary kiln such as lime rotary kiln and cement kiln. Background technique [0002] At present, ordinary furnaces and kilns use ordinary air to support combustion or overall oxygen-increased combustion. The former only contains less than 21% oxygen in the air, and the rest is inert gas. The performance and efficiency of the kiln, etc., while the latter generally has a very large investment and many side effects such as a significant decreas...

Claims

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Application Information

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IPC IPC(8): F27D19/00F23L7/00
CPCF23L7/007F27D19/00F27D2019/0043Y02E20/34
Inventor 沈光林
Owner TIANBANG NAT ENG RES CENT OF MEMBRANE TECH
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