CN106753651A - For the compound binding agent and its application process of carbide raw material shaping - Google Patents
For the compound binding agent and its application process of carbide raw material shaping Download PDFInfo
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- CN106753651A CN106753651A CN201611052673.7A CN201611052673A CN106753651A CN 106753651 A CN106753651 A CN 106753651A CN 201611052673 A CN201611052673 A CN 201611052673A CN 106753651 A CN106753651 A CN 106753651A
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- Prior art keywords
- binding agent
- compound binding
- raw material
- pelletizing
- coal dust
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
- C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
- C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders
- C10L5/14—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders with organic binders
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses the compound binding agent and its application process that are molded for carbide raw material.The present invention discloses the compound binding agent being molded for carbide raw material being made up of staple glass fibre and sodium humate first.The present invention further discloses the method that the compound binding agent described in application prepares carbide raw material pelletizing, including：Quick lime, compound binding agent, coal dust are well mixed, compound is obtained；Compound is compressing, obtain carbide raw material pelletizing.The present invention restrained effectively the generation and development of pelletizing internal tiny crack using compound binding agent prepared by staple glass fibre; the shock resistance of pelletizing is improved, the pulverization rate of pelletizing is reduced, and powdery coal resources can be made full use of; environmental protection, so as to improve the comprehensive benefit of calcium carbide production.The method for preparing carbide raw material pelletizing using compound binding agent of the present invention has the advantages that process is simple, raw material sources are extensive, cheap, addition is few.
Description
Technical field
The present invention relates to the compound binding agent and its application process of carbide raw material shaping, belong to the preparation of carbide raw material pelletizing
Field.
Background technology
Because the increasingly in short supply and price of petroleum resources rises, oil ethene chemical industry is faced with cost pressure, acetylene chemical industry
To be again full of vitality, calcium carbide industry is faced with huge opportunity to develop.With the popularization of mechanical coal mining technology, lump coal rate drop
Low, fine coal rate is but up to more than 80%, and supply falls short of demand to cause lump coal, and fine coal largely overstocks.Not only cause the waste of fine coal resource
With the environmental pollution in mining area, while also govern mining area normally producing, the Social benefit and economic benefit in colliery is have impact on.For
The Energy Situation of China's " rich coal, oil-poor, few gas ", exploitation fine coal prepares calcium carbide technique and arrives acetylene chemical industry again, with important
Comprehensive utilization value.
Traditional calcium carbide industry production is mainly with block lime (8~40mm) or block coke (5~25mm) for raw material enters
Row production, because raw material can produce a certain amount of powder (about 15~20%) in the link such as conveying, broken, screening, and should
Powder cannot be used for calcium carbide production, so that substantial amounts of pulverized limestone, coke blacking, coal dust resource are wasted, cause huge
The wasting of resources and serious environmental pollution, increased control expense and cost.Additionally, traditional calcium carbide industry is also different degrees of depositing
Reaction rate is slow, reaction time long and the problems such as reaction temperature high, cause that power consumption is big, yield poorly.
The Chinese invention patent of the A of Publication No. CN 104140686 discloses calcium carbide powder molding adhesive, its preparation method
And calcium carbide powder forming method, there is provided a kind of calcium carbide powder shaping knot agent used and forming method, its main technical schemes is for first
Binding agent each component is well mixed, is well mixed with calcium carbide powder afterwards, then be molded with dry powder ball press.The binding agent is by 5~6 kinds
Material is constituted, and is changed, it is necessary to prepare material used to binding agent and carry out surface including the activator that mass fraction is 1~5%
Property, there are problems that complex process, be not easy to production operation and production cost.
The Chinese invention patent of the A of Publication No. CN 102249232 discloses one kind semi-coke and the extruding of lime powder is closed
Into the method for calcium carbide raw materials for metallurgy, the main technical schemes of the method are by weight by Ramsbottom carbon powder, lime powder and mid temperature pitch
Amount proportioning is well mixed, and 10~15min is then stirred under 200 DEG C~220 DEG C constant temperatures, finally uses compound extrusion forming
Machine is molded.Carbon-based raw material in the patent of invention is semi-coke, it is impossible to using the huge fine coal of yield, high cost；During binding agent is
Warm coal tar pitch, its content reaches 8~12%, and addition is more, and production cost is high, must be stirred under 200 DEG C~220 DEG C constant temperatures
Mix, process conditions requirement is high and consumes energy larger.
The Chinese invention patent of the A of Publication No. CN 103113949 discloses a kind of method of production of shaped coal binding agent, its master
It is, with coal dust and bentonite as masterbatch, to be equipped with aqueous solvent and catalysis sodium agent to want technical scheme, and height is carried out in reducibility gas
Warm reaction under high pressure, is obtained briquette binder.The briquette binder that the patent of invention is related to is that, with coal dust, bentonite is masterbatch, is matched somebody with somebody
With aqueous solvent and catalysis sodium agent, high-temperature high-voltage reaction preparation is carried out in reducibility gas.The preparation of binding agent in the method
Complex process, is not easy to practical application, while bentonitic addition makes that the water resistance of moulded coal is poor can also increase moulded coal
Ash content.
Summary is visible, in the preparation of existing carbide raw material pelletizing it is different degrees of exist preparation technology it is complicated,
High cost, powdery resource such as can not be fully used at the defect, it would be highly desirable to improve.
The content of the invention
It is an object of the invention to provide a kind of compound binding agent and its application method for carbide raw material shaping, make electricity
The performance of stone raw material pelletizing meets calcium carbide manufacturing technique requirent, can significantly reduce the generation of powder, and powdery resource is obtained
Make full use of, reduce production cost, increase economic efficiency.
Present invention firstly provides a kind of compound binding agent for carbide raw material shaping, by staple glass fibre and humic acid
Sodium is constituted；Preferably, the mass ratio of staple glass fibre and sodium humate is 1：(0.5-10).
The length of described staple glass fibre is 0.1-5mm；The filament diameter of staple glass fibre is 10-80 μm；Described
, in 23000-43000MPa, elastic modelling quantity is in 70-90Gpa for the tensile strength of staple glass fibre.Described staple glass fibre is
Alkali-resistant glass fiber, the alkali-resistant glass fiber contains silica, aluminum oxide, calcium oxide, boron oxide, magnesia and oxygen
Change sodium.
Invention further provides the method that the compound binding agent described in a kind of application prepares carbide raw material pelletizing, bag
Include：Quick lime, compound binding agent, coal dust are well mixed, compound is obtained；Compound is compressing, obtain carbide raw material
Pelletizing.
Wherein, according to mass ratio meter, quick lime：Coal dust=(15-25)：(15-25)；Preferably：Quick lime：Coal dust=
20：20；Wherein, the addition of compound binding agent is the 3-15wt% of the calcium lime powder and the coal dust gross mass.
Described calcium lime powder is calcium lime powder of the particle diameter less than 60 mesh, wherein CaO content >=90%.
Described coal dust is the screenings or coke powder or coal dust after crushing in calcium carbide production；Wherein, the coal dust is
Particle diameter is less than the coal dust content of 80 mesh more than 90%, and the water content of the coal dust is less than or equal to 4%.
According to the difference that carbon content is fixed in coal dust, calcium lime powder is adjustable, the fixed carbon of coal dust with the proportioning of coal dust
Content is in 30~70wt%.
Described material mixing：Using all kinds of mixing equipments in this area as blender, material is put into wherein and continued
5~10min of mixing；
Described is compressing：Can use to roll-in ball machine, tablet press machine or other formers as former, will be mixed
Compound material is put into and is wherein pressed into required lumpiness.
Compound binding agent prepared by present invention application staple glass fibre restrained effectively the generation of pelletizing internal tiny crack
And development, the shock resistance of pelletizing is improved, the pulverization rate of pelletizing is reduced, and powdery coal resources, protection ring can be made full use of
Border, so as to improve the comprehensive benefit of calcium carbide production.The method for preparing carbide raw material pelletizing using compound binding agent of the present invention has
Have the advantages that process is simple, raw material sources are extensive, cheap, addition is few.
Specific embodiment
Further describe the present invention with reference to specific embodiment, advantages of the present invention and feature will be with description and
It is apparent.It should be understood that the embodiment is only exemplary, any limitation is not constituted to the scope of the present invention.This area
Technical staff should be understood that without departing from the spirit and scope of the invention can to the details of technical solution of the present invention and
Form is modified or is replaced, but these modifications or replacement each fall within protection scope of the present invention.
The preparation of the carbide raw material pelletizing of embodiment 1
(1), the preparation of compound binding agent
Component A：Length is the staple glass fibre 1Kg of 0.1-5mm
B component：Sodium humate 1Kg
Staple glass fibre and sodium humate are well mixed in batch mixer, compound binding agent is obtained.
(2), carbide raw material pelletizing is prepared using described compound binding agent
Weigh following each material：
Coal dust：20Kg；
Quick lime：20Kg；
The compound binding agent of quick lime, coal dust and the step (1) that will be weighed is added in batch mixer, mixes 3min, is obtained
Mixed material；Mixed material forming machine pelletizing (block) is obtained into finished pellet, falling for pelletizing is tested by the following method strong
Degree：Pelletizing is freely fallen at rubber slab 0.5m, untill pelletizing is broken, drop number when record pelletizing is broken,
The as fall strength of briquette of pelletizing.
After measured, the average fall strength of briquette of finished pellet manufactured in the present embodiment is 15.8 times/.
The preparation of the carbide raw material pelletizing of embodiment 2
(1), the preparation of compound binding agent
Component A：Length is the staple glass fibre 1Kg of 0.1-5mm
B component：Sodium humate 3Kg
Staple glass fibre and sodium humate are well mixed in batch mixer, compound binding agent is obtained.
(2), carbide raw material pelletizing is prepared using described compound binding agent
Weigh following each material：
Coal dust：20Kg
Quick lime：20Kg；
The compound binding agent of quick lime, coal dust and the step (1) that will be weighed is added in batch mixer, mixes 5min, is obtained
Mixed material；Mixed material forming machine pelletizing (block) is obtained into finished pellet, falling for pelletizing is tested by the following method strong
Degree：Pelletizing is freely fallen at rubber slab 0.5m, untill pelletizing is broken, drop number when record pelletizing is broken,
The as fall strength of briquette of pelletizing.
After measured, the average fall strength of briquette of finished pellet manufactured in the present embodiment is 21.2 times/.
The preparation of the carbide raw material pelletizing of embodiment 3
(1), the preparation of compound binding agent
Component A：Length is the staple glass fibre 0.5Kg of 0.1-5mm
B component：Sodium humate 5Kg
Staple glass fibre and sodium humate are well mixed in batch mixer, compound binding agent is obtained.
(2), carbide raw material pelletizing is prepared using described compound binding agent
Weigh following each material：
Coal dust：20Kg
Quick lime：20Kg；
The compound binding agent of quick lime, coal dust and the step (1) that will be weighed is added in batch mixer, mixes 8min, is obtained
Mixed material；Mixed material forming machine pelletizing (block) is obtained into finished pellet, falling for pelletizing is tested by the following method strong
Degree：Pelletizing is freely fallen at rubber slab 0.5m, untill pelletizing is broken, drop number when record pelletizing is broken,
The as fall strength of briquette of pelletizing.
After measured, the average fall strength of briquette of finished pellet manufactured in the present embodiment is 25.3 times/.
The preparation of the carbide raw material pelletizing of embodiment 4
(1), the preparation of compound binding agent
Component A：Length is the staple glass fibre 1Kg of 0.1-5mm
B component：Sodium humate 0.5Kg
Staple glass fibre and sodium humate are well mixed in batch mixer, compound binding agent is obtained.
(2), carbide raw material pelletizing is prepared using described compound binding agent
Weigh following each material：
Coal dust：25Kg
Quick lime：25Kg；
The compound binding agent of quick lime, coal dust and the step (1) that will be weighed is added in batch mixer, mixes 6min, is obtained
Mixed material；Mixed material forming machine pelletizing (block) is obtained into finished pellet, falling for pelletizing is tested by the following method strong
Degree：Pelletizing is freely fallen at rubber slab 0.5m, untill pelletizing is broken, drop number when record pelletizing is broken,
The as fall strength of briquette of pelletizing.
After measured, the average fall strength of briquette of finished pellet manufactured in the present embodiment is 14.6 times/.
The preparation of the carbide raw material pelletizing of embodiment 5
(1), the preparation of compound binding agent
Component A：Length is the staple glass fibre 1Kg of 0.1-5mm
B component：Sodium humate 5Kg
Staple glass fibre and sodium humate are well mixed in batch mixer, compound binding agent is obtained.
(2), carbide raw material pelletizing is prepared using described compound binding agent
Weigh following each material：
Coal dust：20Kg
Quick lime：20Kg；
The compound binding agent of quick lime, coal dust and the step (1) that will be weighed is added in batch mixer, mixes 10min,
Obtain mixed material；Mixed material forming machine pelletizing (block) is obtained into finished pellet, falling for pelletizing is tested by the following method
Intensity：Pelletizing is freely fallen at rubber slab 0.5m, untill pelletizing is broken, falling when record pelletizing is broken is secondary
Number, the as fall strength of briquette of pelletizing.
After measured, the average fall strength of briquette of finished pellet manufactured in the present embodiment is 24.6 times/.
Claims (10)
1. the compound binding agent of carbide raw material shaping is used for, it is characterised in that be made up of staple glass fibre and sodium humate.
2. according to the compound binding agent described in claim 1, it is characterised in that the mass ratio of staple glass fibre and sodium humate is
1：(0.5-10).
3. according to the compound binding agent described in claim 1, it is characterised in that the length of described staple glass fibre is 0.1-
5mm；The filament diameter of staple glass fibre is 10-80 μm.
4. according to the compound binding agent described in claim 1, it is characterised in that the tensile strength of described staple glass fibre exists
23000-43000MPa, elastic modelling quantity is in 70-90Gpa.
5. according to the compound binding agent described in claim 1-4 any one, it is characterised in that described staple glass fibre is resistance to
Alkaline glass fiber, the alkali-resistant glass fiber contains silica, aluminum oxide, calcium oxide, boron oxide, magnesia and oxidation
Sodium.
6. the method that the compound binding agent described in a kind of application claim 1-4 prepares carbide raw material pelletizing, it is characterised in that bag
Include：Quick lime, compound binding agent, coal dust are well mixed, compound is obtained；Compound is compressing, obtain carbide raw material
Pelletizing.
7. in accordance with the method for claim 6, it is characterised in that according to mass ratio meter, quick lime：Coal dust=(15-25)：
(15-25)；The addition of the compound binding agent is the 3-15wt% of the calcium lime powder and the coal dust gross mass.
8. according to the method described in claim 6 or 7, it is characterised in that described coal dust be calcium carbide production in screenings or
Coke powder after crushing, coal dust；Wherein, the coal dust be particle diameter less than 80 mesh coal dust content more than 90%.
9. according to the method described in claim 6 or 7, it is characterised in that the water content of the coal dust is less than or equal to 4%.
10. in accordance with the method for claim 6, it is characterised in that described calcium lime powder is raw stone of the particle diameter less than 60 mesh
Ashes, wherein CaO content >=90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052673.7A CN106753651A (en) | 2016-11-24 | 2016-11-24 | For the compound binding agent and its application process of carbide raw material shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611052673.7A CN106753651A (en) | 2016-11-24 | 2016-11-24 | For the compound binding agent and its application process of carbide raw material shaping |
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| CN106753651A true CN106753651A (en) | 2017-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611052673.7A Pending CN106753651A (en) | 2016-11-24 | 2016-11-24 | For the compound binding agent and its application process of carbide raw material shaping |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734095A (en) * | 2019-03-13 | 2019-05-10 | 北京双零矿山装备技术有限公司 | A method of with coal dust and calcium lime powder preparation production calcium carbide pelletizing |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168651A (en) * | 2006-10-24 | 2008-04-30 | 张弥问 | Powder molding additive and application thereof in preparing various shaping products |
| KR20120021803A (en) * | 2010-08-17 | 2012-03-09 | 주식회사 케이비알에너지텍 | A process way of the cokes which a residue isn't happened and lump cokes |
| CN104004556A (en) * | 2014-06-13 | 2014-08-27 | 南京师范大学 | Organic/inorganic composite coal water mixture additive |
-
2016
- 2016-11-24 CN CN201611052673.7A patent/CN106753651A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101168651A (en) * | 2006-10-24 | 2008-04-30 | 张弥问 | Powder molding additive and application thereof in preparing various shaping products |
| KR20120021803A (en) * | 2010-08-17 | 2012-03-09 | 주식회사 케이비알에너지텍 | A process way of the cokes which a residue isn't happened and lump cokes |
| CN104004556A (en) * | 2014-06-13 | 2014-08-27 | 南京师范大学 | Organic/inorganic composite coal water mixture additive |
| CN104004556B (en) * | 2014-06-13 | 2015-09-30 | 南京师范大学 | A kind of organic/inorganic composite slurries additive agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109734095A (en) * | 2019-03-13 | 2019-05-10 | 北京双零矿山装备技术有限公司 | A method of with coal dust and calcium lime powder preparation production calcium carbide pelletizing |
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Application publication date: 20170531 |
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