Method and system for waste recycling and treatment

A technology for waste recycling and waste cinder, which is applied in the field of boiler combustion, can solve the problems of energy reuse of waste cinder caused by flue gas pollution, etc., and achieves the effects of simple method, convenient operation and avoiding environmental pollution.

Active Publication Date: 2016-05-11
LUXI CHEM GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of flue gas pollution and / or energy reuse of waste coal slag, the present invention provides a method and system for recycling waste

Method used

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  • Method and system for waste recycling and treatment
  • Method and system for waste recycling and treatment
  • Method and system for waste recycling and treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1As shown in the figure, a system for waste recovery and treatment, the oil fume flue 1 of the heat conduction oil furnace is connected to the induced draft fan I3 and the induced draft fan II7 of the 1# coal-fired boiler 6 through the electric dust removal equipment and the bag dust removal equipment 2, and the induced draft fan I3 is connected to Primary fan I4 of 1# coal-fired boiler 6. The induced draft fan II7 is connected to the primary fan II8 of the 2# coal-fired boiler 9.

[0044] Both the 1# coal-fired boiler and the 2# coal-fired boiler are connected to the pulverized coal bin 5. Primary air is used to convey and dry coal powder, and provide oxygen for volatile combustion in coal powder.

[0045] The method of use is as follows: the oil fume generated by the heat conduction oil furnace enters the oil fume flue 1 through the flue gas outlet to meet, and then goes through the electrostatic precipitator and bag dust removal equipment 2 for dust ...

Embodiment 2

[0048] As a specific embodiment, such as figure 2 As shown, a system for waste recovery and treatment, 2# coal-fired boiler has two primary fans, and the oil fume flue 1 of the heat-conducting oil furnace is connected to the induced draft fan Ⅱ7 of 2# coal-fired boiler through electric dust removal equipment and bag dust removal equipment 2 And the induced draft fan III10, the induced draft fan II7 is connected to the primary fan II8 of the 2# boiler, and the induced draft fan III11 is connected to the primary fan III11 of the 2# coal-fired boiler.

[0049] The oil fume flue 1 in the present invention is not limited to connecting two induced draft fans of one boiler, but can also connect multiple induced draft fans of one boiler.

Embodiment 3

[0051] A method for recovery and treatment of waste (oil fume), the applicant adopts the system in Example 1 to recycle the oil fume produced by the heat conduction oil furnace into the 1# coal-fired steam boiler and 2# coal-fired steam boiler for steam supply, and control The flow ratio of air to oil fume is 400:1m 3 / h.

[0052] See Table 1 below for the relevant parameters before and after recovery of the oil fume generated by the heat conduction oil furnace.

[0053] Table 1 Comparison table before and after oil furnace flue gas recovery

[0054] Process parameters

Before 1# boiler is put into use

After 1# boiler is put into use

Before 2# boiler is put into use

After the 2# boiler is put into use

Load T / H

56

56

43

43

Bed temperature ℃

983-986

992-990

985-980

988-990

Furnace differential pressure pa

110

142

142

117

Furnace outlet negative pressure pa

-114

-125Pa

...

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Abstract

The invention discloses a method and a system for waste recycling and treatment. The method comprises the following schemes: introducing oil fumes into a coal-fired boiler through a primary air fan and blowing primary air into the coal-fired boiler; or, introducing oil fumes into a coal-fired boiler through a primary air fan and blowing primary air into a boiler, meanwhile mixing waste coal slag generated by a gas-making furnace and coal in the coal-fired boiler so as to supply fuels to the boiler. The method and the system for waste recycling and treatment have the beneficial effects that the method is simple, convenient to operate and suitable for alteration of fume combination treatment of large and small boiler devices; the economic cost in construction of flue gas treatment facilities is reduced, the qualified flue gas emission is guaranteed as well, the environmental pollution is avoided; meanwhile the method is suitable for environment protection alteration of small-sized boilers without flue gas treatment process in the serious environment protection situation at present. Through blending combustion of coal slag in the boiler, the load capacity of the boiler maintains stably.

Description

technical field [0001] The invention relates to the field of boiler combustion, in particular to a waste recycling method and system. Background technique [0002] Industrial waste gas refers to the general term for all kinds of pollutant gases that are discharged into the air during fuel combustion and production processes in the enterprise factory area. Heat-conducting oil furnace is a common heating equipment in the petrochemical industry, but during use, due to the high temperature, it is easy to generate oily fume, and the treatment method of oily fume is often connected to the chimney and discharged directly. [0003] With the development of my country's economy, more and more chemical companies and industrial parks use gas generators to prepare synthesis gas and boilers for heating. However, the carbon content in the slag of the gas-making furnace is relatively high, that is, it cannot be completely burned, and it is usually discharged as waste; the boiler needs to u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G7/06F23J15/02F23K1/00F23K3/00
Inventor 刘素云刘吉祥王志强孟凡民王静赵明明
Owner LUXI CHEM GRP
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