CN1150303C

CN1150303C - High efficiency coal saving sweetening agent

Info

Publication number: CN1150303C
Application number: CNB001236318A
Authority: CN
Inventors: 杜丽文
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-25
Filing date: 2000-08-25
Publication date: 2004-05-19
Anticipated expiration: 2020-08-25
Also published as: CN1339573A

Abstract

The present invention relates to a coal-saving desulfurizing agent with high efficiency for various fuel coal boilers, industrial furnaces and civil stoves. The coal-saving desulfurizing agent with high efficiency comprises a synergistic combustion accelerator, a combustion improver with high efficiency and a pollution-reducing agent with high activity by a multiple mixture. The agent is added according to 0.1 to 0.4% of the fuel coal weight when used, and the fuel coal is thoroughly activated, rapidly decomposed and fast burned; consequently, the boiler efficiency is enhanced, the discharge of harmful gas, such as smoke dust, sulfur dioxide, carbon monoxide, etc. is reduced, and the blackness of smoke gas is reduced; the purposes of coal-saving and pollution-reducing are achieved, and the agent has favorable economic benefits, environmental protection benefits and social benefits.

Description

High efficiency coal saving sweetening agent

The present invention relates to a kind of high efficiency coal saving sweetening agent that is used for various coal firing boilers, Industrial Stoves and Civil energy-saving cooking stove.

China is that producing coal all is maximum countries with burning coal in the world, in China's coal-fired structure, based on coal, is first energy.But in use, the ubiquity coal combustion is incomplete, boiler efficiency is low, coal consumption is big, serious waste of resources; Because coal is the unclean fuel of a kind of sulfur-bearing and several mineral materials, the backwardness of combustion technology causes coal to produce multiple obnoxious flavour and material atmosphere pollutions such as flue dust, sulfurous gas, carbon monoxide when burning in addition again.

To this, country attaches great importance to, for many years economize on coal the consumption reduction and reduce coal-fired noxious emission and aspect topsoil, done a large amount of technology development works, obtained some effects, but produced little effect, its economic benefit, environmental benefit and social benefit are all undesirable.

The objective of the invention is according to flame mechanism and China's boiler practical operation situation, a kind of high efficiency coal saving sweetening agent is provided, in fire coal, add a small amount of this high efficiency coal saving sweetening agent, go into the stove burning together with fire coal, fire coal was fully activated in the differing temps stage, decompose rapidly, accelerate combustion, thus improve flame and fire box temperature; Simultaneously, suppress and reduce the generation and the discharging of multiple obnoxious flavoures such as flue dust, sulfurous gas, carbon monoxide; And can eliminate the burnt shape thing of inboard wall of burner hearth, improve thermal conductivity, the work-ing life of prolonged boiler.

For achieving the above object, high efficiency coal saving sweetening agent of the present invention subtracts dirty agent Recompounded multielement by synergy accelerating agent, high active combustion agent, high reactivity and forms.Its shared weight percent is: synergy accelerating agent 40-80%, high active combustion agent 20-40%, high reactivity subtract dirty agent 5-20%.Wherein:

The synergy accelerating agent is made up of in Repone K, sodium sulphite, manganese oxide, the sodium oxide one or more;

High active combustion agent is made up of in saltpetre, SODIUMNITRATE, cupric oxide, the ferric oxide one or more;

High reactivity subtracts one or more compositions in dirty agent ammonium nitrate, yellow soda ash, calcium oxide, the calcium hydroxide.

Below in conjunction with embodiment, the present invention is further described:

Embodiment one: Repone K 40%, sodium sulphite 20%, manganese oxide 4%, saltpetre 12%, ferric oxide 16%, ammonium nitrate 3%, SODIUMNITRATE 5%.

Embodiment two: Repone K 10%, sodium sulphite 55%, manganese oxide 3%, SODIUMNITRATE 20%, cupric oxide 1%, ammonium nitrate 3%, calcium hydroxide 8%.

More than each embodiment, all by after each weight percent weighing, being crushed to 80 orders, mixing and stirring.

During use, go into the stove burning in the fire coal together directly even the adding by the 0.1-0.4% of coal-fired weight, or it is dissolved in the high efficiency coal saving sweetening agent weight 5-10 cold water doubly earlier, evenly be sprayed on the fire coal again, go into stove and burn.

The high efficiency coal saving sweetening agent of above embodiment detects through coalification institute power-saving technology service station, coal scientific research Zong Yuan Beijing and environment monitoring center, Beijing, (high efficiency coal saving sweetening agent adds by coal-fired weight 0.3%) detected result:

Boiler hearth temperature is brought up to 1055 ℃ by original 953 ℃, and the boiler positive balance efficiency improves 20.08%, uses high efficiency coal saving sweetening agent can save coal-fired about 20%.Contrast test shows that high efficiency coal saving sweetening agent has and improves furnace temperature effect and effect of coal saving preferably preferably.

To testing, do not add the full sulphur S of coal of high efficiency coal saving sweetening agent with a collection of fire coal _TadBe 1.06 (%), the coal-fired full sulphur S behind the adding high efficiency coal saving sweetening agent _Tad(1%) be 0.64, coal-fired full sulphur S _Tad(1%) reduced by 0.42.The flue dust test result shows that behind the adding high efficiency coal saving sweetening agent, smoke discharge amount has reduced by 37.5%.

High efficiency coal saving sweetening agent of the present invention uses through reality, effect of coal saving is remarkable, coal-fired quick combustion, firepower are prosperous, fire box temperature improves, the slag carbon content reduces, discharge of harmful gases such as flue dust, sulfurous gas, carbon monoxide reduce, and oke exhaust blackness reduces one-level (lingemann blackness), has good economy, environmental protection and social benefit.

Claims

1, a kind of high efficiency coal saving sweetening agent, comprise that synergy accelerating agent, high reactivity subtract dirty agent and high active combustion agent, it is characterized in that synergy accelerating agent weight percent is 40-80%, it is 5-20% that high reactivity subtracts dirty agent weight percent, and the high active combustion agent weight percent is 20-40%.

2,, it is characterized in that the synergy accelerating agent is made up of one or more of sodium-chlor, sodium sulphite, manganese oxide, sodium oxide according to the high efficiency coal saving sweetening agent of claim 1.

3,, it is characterized in that high active combustion agent is made up of one or more of saltpetre, SODIUMNITRATE, cupric oxide, ferric oxide according to the high efficiency coal saving sweetening agent of claim 1.

4,, it is characterized in that high reactivity subtracts dirty agent and is made up of one or more of ammonium nitrate, yellow soda ash, calcium oxide, calcium hydroxide according to claim 1,2 or 3 high efficiency coal saving sweetening agent.