Environment protection coal-saving agent for cement vertical kiln

Abstract

The invention provides an environmental-friendly coal-saving agent for a cement shaft kiln, comprising the following raw materials by weight portion: 3-7 portions of a coal combusting low-temperature modifying agent, 2-6 portions of a compound sulphur-fixing agent, 0.5-0.96 portion of a combusting inductive agent, 3-7 portions of a raising agent, 56-96 portions of a combusting poising agent, and 5-15 portions of a highly-efficient sulphur-fixing agent. The coal combusting low-temperature modifying agent can be potassium permanganate, potassium chlorate, potassium perchlorate, sodium chlorate, sodium nitrate and the like; the compound sulphur-fixing agent can be sodium carbonate, calcium oxide and the like; the raising agent can be waste liquor of paper mill containing Na or / and Ca sulphonate and the like; and the combusting poising agent can be a chemical waste reducing substance containing sodium chloride and the like. The method solves the problems of environmental pollution and resource waste in the prior art, uses compatibility of multiple chemical raw material of 6-10 percent and chemical waste to prepare the coal-saving agent with small dosage and fast effect to be added to the production of the cement shaft kiln in trace quantity, and has the advantages of resource conservation by using waste, coal conservation and consumption reduction, and reduction of dust and SO2 discharge and environmental pollution.

Description

Technical field

[0001] The invention relates to an environment-friendly and coal-saving agent for cement vertical kiln production. Background technique

[0002] Chinese invention patent publication CN1493542 provides an energy-saving additive for shaft kiln cement calcination, including: CaF 2 、H 2 O, Mg 6 [Si 4 o 10 ](OH) 8 , Y 2 o 3 , CeO 3 , active silicon and organosilicon, which are actually used in physical mineral products and their mass percentages are: fluorspar (fluorite) 20-35%, perlite and vermiculite 10-20%, rare earth 5-10%, serpentine Stone 15-30%, diatomaceous earth 10-20%. The shortcomings are: 1. Add fluorite and other materials, fluorite mainly contains C a f 2 , HF will be produced after the combustion reaction, and will destroy the atmospheric ozone layer when diffused into the air; 2. The proportion of cement raw materials is 0.5-0.8%, and the dosage is large. Chinese invention patent publication CN1995298 discloses a special coal-saving syn...

Examples

Embodiment 1

[0014] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0015] 3 parts of coal combustion low-temperature modifier; 3 parts of composite sulfur-fixing agent; 3 parts of leavening agent;

[0016] 83 parts of combustion balance agent (including 0.83 parts of combustion inducer); 8 parts of high-efficiency sulfur-fixing agent.

[0017] The coal combustion low-temperature modifier is composed of potassium permanganate, potassium chlorate, potassium perchlorate, sodium chlorate, sodium nitrate and potassium nitrate mixed in the same proportion. The composite sulfur fixing agent is composed of sodium carbonate and calcium oxide in the same proportion. Bulking agent is paper mill waste liquid containing Na and Ca sulfonates. The combustion balance agent is a chemical waste reduction product containing about 70% sodium chloride, and the reduction product contains about 1% ammonium perchlorate. The combu...

Embodiment 2

[0020] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0021] 7 parts of coal combustion low-temperature modifier; 6 parts of composite sulfur-fixing agent; 7 parts of leavening agent;

[0022] 66 parts of combustion balance agent (including 0.66 parts of combustion inducer); 14 parts of high-efficiency sulfur-fixing agent.

[0023] The coal combustion low-temperature modifier is composed of 5% potassium permanganate, 55% potassium chlorate, 15% potassium perchlorate, 15% sodium chlorate and 10% sodium nitrate. Said composite sulfur-fixing agent is sodium carbonate. Said bulking agent is paper mill waste liquid containing Na and Ca sulfonates. Said combustion balance agent is chemical waste reducing product containing 90% sodium chloride, and combustion inducer is ammonium perchlorate, which promotes rapid and complete reaction of coal. Said sulfur-fixing agent contains Fe(OH) 3 leftover iron ...

Embodiment 3

[0026] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0027] 5 parts of coal combustion low-temperature modifier; 4 parts of composite sulfur-fixing agent; 5 parts of leavening agent;

[0028] 76 parts of combustion balance agent (including 0.76 parts of combustion inducer); 10 parts of high-efficiency sulfur-fixing agent.

[0029] The low-temperature modifier for coal combustion is composed of 8% potassium permanganate, 50% potassium chlorate, 12% potassium perchlorate, 15% sodium chlorate, 10% sodium nitrate and 5% potassium nitrate. Said composite sulfur-fixing agent is composed of 10% sodium carbonate, 80% calcium oxide and 10% potassium carbonate. Said bulking agent is paper mill waste liquid containing Na and Ca sulfonates. Said combustion balancing agent is chemical waste reducing product containing 80% sodium chloride, and the combustion inducer is the above-mentioned ammonium perchlora...

Technical field

[0001] The invention relates to an environment-friendly and coal-saving agent for cement vertical kiln production. Background technique

[0002] Chinese invention patent publication CN1493542 provides an energy-saving additive for shaft kiln cement calcination, including: CaF 2 、H 2 O, Mg 6 [Si 4 o 10 ](OH) 8 , Y 2 o 3 , CeO 3 , active silicon and organosilicon, which are actually used in physical mineral products and their mass percentages are: fluorspar (fluorite) 20-35%, perlite and vermiculite 10-20%, rare earth 5-10%, serpentine Stone 15-30%, diatomaceous earth 10-20%. The shortcomings are: 1. Add fluorite and other materials, fluorite mainly contains C a f 2 , HF will be produced after the combustion reaction, and will destroy the atmospheric ozone layer when diffused into the air; 2. The proportion of cement raw materials is 0.5-0.8%, and the dosage is large. Chinese invention patent publication CN1995298 discloses a special coal-saving syn...

Examples

Embodiment 1

[0014] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0015] 3 parts of coal combustion low-temperature modifier; 3 parts of composite sulfur-fixing agent; 3 parts of leavening agent;

[0016] 83 parts of combustion balance agent (including 0.83 parts of combustion inducer); 8 parts of high-efficiency sulfur-fixing agent.

[0017] The coal combustion low-temperature modifier is composed of potassium permanganate, potassium chlorate, potassium perchlorate, sodium chlorate, sodium nitrate and potassium nitrate mixed in the same proportion. The composite sulfur fixing agent is composed of sodium carbonate and calcium oxide in the same proportion. Bulking agent is paper mill waste liquid containing Na and Ca sulfonates. The combustion balance agent is a chemical waste reduction product containing about 70% sodium chloride, and the reduction product contains about 1% ammonium perchlorate. The combu...

Embodiment 2

[0020] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0021] 7 parts of coal combustion low-temperature modifier; 6 parts of composite sulfur-fixing agent; 7 parts of leavening agent;

[0022] 66 parts of combustion balance agent (including 0.66 parts of combustion inducer); 14 parts of high-efficiency sulfur-fixing agent.

[0023] The coal combustion low-temperature modifier is composed of 5% potassium permanganate, 55% potassium chlorate, 15% potassium perchlorate, 15% sodium chlorate and 10% sodium nitrate. Said composite sulfur-fixing agent is sodium carbonate. Said bulking agent is paper mill waste liquid containing Na and Ca sulfonates. Said combustion balance agent is chemical waste reducing product containing 90% sodium chloride, and combustion inducer is ammonium perchlorate, which promotes rapid and complete reaction of coal. Said sulfur-fixing agent contains Fe(OH) 3 leftover iron ...

Embodiment 3

[0026] The cement shaft kiln environmental protection and coal-saving agent comprises the following raw materials in parts by weight:

[0027] 5 parts of coal combustion low-temperature modifier; 4 parts of composite sulfur-fixing agent; 5 parts of leavening agent;

[0028] 76 parts of combustion balance agent (including 0.76 parts of combustion inducer); 10 parts of high-efficiency sulfur-fixing agent.

[0029] The low-temperature modifier for coal combustion is composed of 8% potassium permanganate, 50% potassium chlorate, 12% potassium perchlorate, 15% sodium chlorate, 10% sodium nitrate and 5% potassium nitrate. Said composite sulfur-fixing agent is composed of 10% sodium carbonate, 80% calcium oxide and 10% potassium carbonate. Said bulking agent is paper mill waste liquid containing Na and Ca sulfonates. Said combustion balancing agent is chemical waste reducing product containing 80% sodium chloride, and the combustion inducer is the above-mentioned ammonium perchlora...