CN105905904A - Composite adhesive, and method therewith for molding calcium carbide raw materials - Google Patents
Composite adhesive, and method therewith for molding calcium carbide raw materials Download PDFInfo
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- CN105905904A CN105905904A CN201610245142.3A CN201610245142A CN105905904A CN 105905904 A CN105905904 A CN 105905904A CN 201610245142 A CN201610245142 A CN 201610245142A CN 105905904 A CN105905904 A CN 105905904A
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Abstract
The invention relates to a composite adhesive, and method therewith for molding calcium carbide raw materials. The composite adhesive includes an A component and a B component. The A component is biomass fibers and the B components is one or two selected from tar residue and asphalt. The weight part ratio of the A component to the B component is 1:(0.3-10). The method for molding calcium carbide raw materials with the composite adhesive includes the following steps: uniformly mixing quicklime powder, the composite adhesive and coal powder to prepare a mixed material, and successively heating and press-moulding the mixed material to prepare calcium carbide raw material pellets. The addition amount of the composite adhesive is 5-30 wt% of the total weight of the quicklime powder and the coal powder. The method has low raw material cost and is environment-protective. The calcium carbide raw material pellets have good anti-impact performance. The method is simple and increases comprehensive benefit of production of calcium carbide.
Description
Technical field
The invention mainly relates to the production field of carbide raw material, particularly relate to a kind of compound binding agent and utilization
Compound binding agent carries out the method for carbide raw material shaping.
Background technology
Owing to the most in short supply of petroleum resources and price rise, oil ethene chemical industry is faced with cost pressure,
Thus acetylene chemical industry will be the most full of vitality, and calcium carbide can generate acetylene, and therefore calcium carbide industry is faced with
Huge opportunity to develop.On the other hand, along with popularizing of mechanical coal mining technology, lump coal rate reduces,
Fine coal rate is but up to more than 80%, and supply falls short of demand to cause lump coal, and fine coal overstocks in a large number, and this not only causes powder
The waste of coal resource and the environmental pollution in mining area, also govern the normal production development in mining area, shadow simultaneously
Ring the Social benefit and economic benefit in colliery.The energy for China's " rich coal, gas oil-poor, few "
Present situation, exploitation fine coal is prepared calcium carbide technique and is arrived acetylene chemical industry again, has important comprehensive exploitation profit
By value.
Tradition calcium carbide industrial production is mainly with block lime (8～40mm) or block coke (5～25mm)
Produce for raw material, owing to raw material can produce a certain amount of in the links such as conveying, broken, screening
Powder (about 15～20%), and this powder cannot be used for calcium carbide produce so that substantial amounts of pulverized limestone,
Coke blacking, coal dust resource are wasted, and cause the huge wasting of resources and serious environmental pollution, increase
Control expense and cost are added.Additionally, tradition calcium carbide industry there is also, reaction rate is slow, the reaction time
The problems such as long and reaction temperature is high, cause that power consumption is big, yield poorly.
The raw material producing calcium carbide can be microfine coal and ultra-fine calcium lime powder.Owing to employing superfine powder can
To be greatly improved the reactivity of material, significantly reduce reaction temperature and energy consumption, and then reduce calcium carbide
Production cost.The forming technique of superfine powder is widely used, but using microfine coal and calcium lime powder as
The technology producing calcium carbide of raw material but never breaks through, wherein microfine coal and the shaping of calcium lime powder
An always difficult problem.
Simultaneously in the production process of calcium carbide, inevitably result from dust.Substantial amounts of dust swims in
In air, pollute the environment, jeopardize health, cause the waste of carbide raw material, add production
Cost, the most also can increase the unsafe factor in production process.
Therefore, for the problems referred to above, it is necessary to provide a kind of compound binding agent for carbide raw material shaping
And using method, to solve the formation problems of microfine coal and calcium lime powder, the most again can be fully sharp
Use powdery coal resources, thus protect environment, improve the comprehensive benefit that calcium carbide produces.
Summary of the invention
For the problems referred to above, it is desirable to provide a kind of compound binding agent and utilize compound binding agent to carry out
The method of carbide raw material shaping, can preferably solve the formation problems of microfine coal and calcium lime powder, again
Powdery coal resources can be made full use of.
It is desirable to provide a kind of compound binding agent for carbide raw material shaping, including: A, B group
Point, wherein, described component A is made a living material type fiber, and described B component is in tar slag, pitch
One or both, the weight ratio of described component A and described B component is 1:(0.3-10).
Living beings fiber in described compound binding agent can include rice straw, wheat stalk, corn
Any one in stalk, sugarcane stalk, sawdust or the most several mixture；Described living beings class is fine
The length of dimension is less than 6mm.
Further, the described component A in described compound binding agent can be wheat stalk, described B group
Dividing can be tar slag, and described component A is 1:(1-10 with the weight ratio of described B component).
Further, the described component A in described compound binding agent can be rice straw and wheat stalk
Mixture, described B component can be the mixture of tar slag and pitch, described rice straw and described
The weight ratio of wheat stalk is 1:(0.1-10), described tar slag and the weight part ratio of described pitch
Example is 1:(0.1-10), described component A is 1:(0.5-10 with the weight ratio of described B component).
Further, the described component A in described compound binding agent can be maize straw, described B group
Point can be the mixture of tar slag and pitch, the weight ratio of described tar slag and pitch be 1:
(0.1-10), described component A is 1:(1-10 with the weight ratio of described B component).
Further, the described component A in described compound binding agent can be sawdust, and described B component can
For tar slag and the mixture of pitch, the weight ratio of described tar slag and pitch is 1:(0.1-10),
Described component A is 1:(1-10 with the weight ratio of described B component).
Further, the described component A in described compound binding agent can be rice straw, described B group
Dividing can be pitch, and described component A is 1:(0.3-10 with the weight ratio of described B component).
The present invention also provides for a kind of method utilizing above-mentioned compound binding agent to carry out carbide raw material shaping, described
Method comprises the steps of
Calcium lime powder, described compound binding agent and coal dust are mixed, obtains mixed material；
By compacting after being heated by described mixed material, it is shaped to carbide raw material pelletizing；
Wherein, during mixing, in described compound binding agent, the weight ratio of component A and B component is 1:
(0.3-10), the addition of described compound binding agent is described calcium lime powder and described coal dust gross mass
5-30wt%.
Further, the water content of described coal dust is below 4wt%；The particle diameter of described calcium lime powder is less than
60 mesh, wherein CaO content >=85wt%；In described coal dust, grade is that the coal dust of below 80 mesh accounts for
More than the 90wt% of described coal dust total amount.
Further, the temperature of described heating is 90-120 DEG C, and the time is 60-120min.
According to the technique scheme of the present invention, the shaping both having solved microfine coal and calcium lime powder is asked
Topic, takes full advantage of again powdery coal resources and biomass resource simultaneously, thus play protection environment,
Improve calcium carbide and produce the effect of comprehensive benefit.
Accompanying drawing explanation
Fig. 1 is that the compound binding agent that utilizes of the embodiment of the present invention carries out the flow chart of carbide raw material shaping.
Detailed description of the invention
Below in conjunction with drawings and Examples, the detailed description of the invention of the present invention is carried out more detailed theory
Bright, so as to the advantage being more fully understood that the solution of the present invention and various aspects.But, below
The detailed description of the invention and the embodiment that describe are only descriptive purpose rather than limitation of the present invention.
The present invention mainly provides a kind of compound binding agent for carbide raw material shaping, provides simultaneously and makes
The method carrying out carbide raw material shaping with this compound binding agent.
The compound binding agent of technical solution of the present invention, is made up of two kinds of components of following A, B: component A is
Living beings fiber, B component be any one in tar slag and pitch or both with arbitrary proportion form
Mixture.Described component A is 1:(0.3-10 with the weight ratio of described B component).
Wherein the length of living beings fiber is preferably less than 6mm, be so easy to material mixing and after
Continuous shaping.
After living beings fiber can being Tumblied Dry, it is ground into length less than 6mm's with pulverizer
Chopped fiber.
In order to choose the with low cost and easy raw material of access approaches, in conjunction with China's national situation, living beings class
Fiber is it is contemplated that the making species or forest class, such as living beings fiber component A and can be of wide material sources
Any one or it among rice straw, wheat stalk, maize straw, sugarcane stalk or sawdust
More than one with arbitrary proportion composition mixtures, the most just can turn waste into wealth, make rational use of resources.
Component A is different with the ratio of B component can cause formed carbide raw material performance difference,
The average fall strength of briquette etc. of carbide raw material performance leading indicator such as finished product carbide raw material pelletizing.Each composition ratio
The difference of example and the carbide raw material performance difference of generation will represent by way of example, see below stationery
Body embodiment.
A kind of preferred version therein is that the described component A in described compound binding agent is wheat stalk,
Described B component is tar slag, and described component A is 1:(1-10 with the weight ratio of described B component).
Another kind of preferred version is, the described component A in described compound binding agent is rice straw and little
The mixture of Wheat Straw, described B component is the mixture of tar slag and pitch, described rice straw and
The weight ratio of described wheat stalk is 1:(0.1-10), described tar slag and the weight of described pitch
Part ratio is 1:(0.1-10), described component A is 1 with the weight ratio of described B component:
(0.5-10)。
Another preferred version is, the described component A in described compound binding agent is maize straw, institute
Stating the mixture that B component is tar slag and pitch, the weight ratio of described tar slag and pitch is 1:
(0.1-10), described component A is 1:(1-10 with the weight ratio of described B component).
Preferably another program is alternatively, and the described component A in described compound binding agent is sawdust, institute
Stating the mixture that B component is tar slag and pitch, the weight ratio of described tar slag and pitch is 1:
(0.1-10), described component A is 1:(1-10 with the weight ratio of described B component).
Reoffering a kind of preferred version is that the described component A in described compound binding agent is rice straw,
Described B component is pitch, and described component A is 1:(0.3-10 with the weight ratio of described B component).
Other preferred version is the present invention will describe in detail with such scheme in an embodiment one by one, at this not
Enumerate again.
Invention additionally discloses a kind of compound binding agent utilized in technique scheme and carry out carbide raw material one-tenth
The method of type, its main flow is: coal dust, quick lime and compound binding agent are mixed, more heated
Send into former and be shaped to carbide raw material pelletizing.
Certainly, feed coal, quick lime used during concrete production are probably bulk, it is also possible to because of aqueous
Measure higher, need first coal or quick lime to be worn into powdery, make their granularity attenuate in powdery, then with
Binding agent mixes, this with regard to many drying, levigate technique.This complete flow process is as shown in Figure 1.
Specifically, when using above-mentioned compound binding agent to carry out carbide raw material shaping, it includes step:
Calcium lime powder, compound binding agent, coal dust are mixed, obtains mixed material；Again by mixed material
By compressing after heating, obtain carbide raw material pelletizing.
Wherein, the addition of described compound binding agent is described calcium lime powder and described coal dust total amount
5-30wt%.
Coal dust used in carbide raw material, it is also possible to be the screenings or after crushing during calcium carbide produces
Coke powder, coal dust, it is ensured that wherein grade be 80 mesh and following coal dust content at more than 90wt%, and protect
Demonstrate,prove its water content at below 4wt%；Used calcium lime powder is that particle diameter is less than the 60 thin quick limes of purpose
Powder, wherein CaO content >=85%.Wt% referred to herein refers both to percentage by weight.
When mixed material, all kinds of mixing equipment in this area can be used as blender, material is put into
Wherein and persistently mix 3～8min so that material mixes.
When mixed material is heated, can using air dry oven or other firing equipment as heater,
Mixed material is put into wherein and continuous heating 60～120min at 90～120 DEG C during heating.
When compressing, can use roller ball press, tablet press machine or other former as one-tenth
Type device, puts into mixed material and is wherein pressed into required lumpiness, and so far, carbide raw material is just formed
For pelletizing.
The technical scheme of embodiment of the present invention, its process is simple, and the binding agent used has
The advantages such as wide material sources, cheap, addition is few, and living beings fiber restrained effectively
The generation of pelletizing internal tiny crack and development, improve the shock resistance of pelletizing, reduce pelletizing
Pulverization rate, it is possible to meet the requirement of calcium carbide production technology.Additionally, the technical program can make full use of powder
Shape coal resources and biomass resource, can protect environment, thus improve the comprehensive effect that calcium carbide produces
Benefit.
Illustrate that the present invention utilizes compound binding agent to carry out carbide raw material shaping below in conjunction with specific embodiment
The technical scheme of method.
In following embodiment, institute's taking technique condition value is exemplary, and its desirable number range is the most front
State shown in specification.
In this article, term " wt% " refers to weight %.
Embodiment 1
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: rice straw (particle diameter < 6mm) 42g；B component: pitch 63g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 3min；Will mixing
Material uses forming machine pelletizing (block), finished product carbide raw material ball after testing after heating 75min at 110 DEG C
The average fall strength of briquette of group is 21.5 times/.
Embodiment 2
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: wheat stalk (particle diameter < 6mm) 63g；B component: tar slag 168g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 5min；Will mixing
Material uses forming machine pelletizing (block), finished product carbide raw material ball after testing after heating 120min at 90 DEG C
The average fall strength of briquette of group is 28.0 times/.
Embodiment 3
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: maize straw (particle diameter < 6mm) 84g；B component: tar slag 110g,
Pitch 100g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 5min；Will mixing
Material uses forming machine pelletizing (block), finished product carbide raw material ball after testing after heating 120min at 95 DEG C
The average fall strength of briquette of group is 17.8 times/.
Embodiment 4
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: sugarcane stalk (particle diameter < 6mm) 126g；B component: tar slag 200g,
Pitch 52g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 6min；Will mixing
Material uses forming machine pelletizing (block), finished product carbide raw material ball after testing after heating 90min at 105 DEG C
The average fall strength of briquette of group is 16.5 times/.
Embodiment 5
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: sawdust (particle diameter < 4mm) 168g；B component: tar slag 115g,
Pitch 200g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 8min；Will mixing
Material uses forming machine pelletizing (block), finished product carbide raw material ball after testing after heating 120min at 95 DEG C
The average fall strength of briquette of group is 20.2 times/.
Embodiment 6
Use the compound binding agent in above-mentioned embodiment to produce carbide raw material, weigh each thing by following amount
Matter (unit: gram (g)):
Compound binding agent: component A: rice straw (particle diameter < 6mm) 105g, wheat stalk (particle diameter < 6mm)
105g；B component: tar slag 105g, pitch 315g；
Coal dust: 1000g；
Calcium lime powder: 1100g；
Calcium lime powder, compound binding agent, coal dust are joined in batch mixer, mixes 8min；Will mixing
Material uses forming machine pelletizing (block) after heating 60min at 120 DEG C, and averagely falling of finished pellet is strong
Degree is 25.6 times/.
From above example, technical scheme process is simple, and used is compound
Binding agent has the advantages such as wide material sources, cheap, addition is few；Living beings fiber is effectively
Inhibit generation and the development of pelletizing internal tiny crack, improve the shock resistance of pelletizing, reduce
The pulverization rate of pelletizing.
Last it is noted that obvious, above-described embodiment is only by clearly demonstrating what the present invention was made
Citing, and not restriction to embodiment.For those of ordinary skill in the field, exist
Can also make other changes in different forms on the basis of described above.Here without also without
All of embodiment is given exhaustive by method.And the obvious change thus amplified out or variation
Among protection scope of the present invention.
Claims (10)
1. a compound binding agent, described compound binding agent includes A, B component, wherein, described A
Component is made a living material type fiber, one or both in tar slag, pitch of described B component, institute
The weight ratio stating component A and described B component is 1:(0.3-10).
Compound binding agent the most according to claim 1, it is characterised in that described living beings class is fine
Dimension is selected from rice straw, wheat stalk, maize straw, sugarcane stalk and sawdust；Described living beings class
Fiber a length of less than 6mm.
Compound binding agent the most according to claim 1, it is characterised in that described component A is little
Wheat Straw, described B component is tar slag, and described component A is 1 with the weight ratio of described B component:
(1-10)。
Compound binding agent the most according to claim 1, it is characterised in that described component A is rice
Grass stalk and the mixture of wheat stalk, described B component is the mixture of tar slag and pitch, described
The weight ratio of rice straw and described wheat stalk is 1:(0.1-10), described tar slag and described
The weight ratio of pitch is 1:(0.1-10), described component A and the weight ratio of described B component
For 1:(0.5-10).
Compound binding agent the most according to claim 1, it is characterised in that described component A is beautiful
Rice stalk, described B component is the mixture of tar slag and pitch, described tar slag and the weight of pitch
Part ratio is 1:(0.1-10), described component A is 1:(1-10 with the weight ratio of described B component).
Compound binding agent the most according to claim 1, it is characterised in that described component A is saw
End, described B component is the mixture of tar slag and pitch, described tar slag and the weight part ratio of pitch
Example is 1:(0.1-10), described component A is 1:(1-10 with the weight ratio of described B component).
Compound binding agent the most according to claim 1, it is characterised in that described component A is rice
Grass stalk, described B component is pitch, and described component A is 1 with the weight ratio of described B component:
(0.3-10)。
8. the compound binding agent utilized described in any one of claim 1 to 7 carries out carbide raw material one-tenth
The method of type, said method comprising the steps of:
Calcium lime powder, described compound binding agent and coal dust are mixed, obtains mixed material；
Carry out described mixed material successively heating and compressing, obtain carbide raw material pelletizing；
Wherein, during mixing the addition of described compound binding agent be described calcium lime powder and described coal dust total
The 5-30wt% of amount.
Method the most according to claim 8, it is characterised in that
The water content of described coal dust is below 4wt%；
The particle diameter of described calcium lime powder is less than 60 mesh, wherein CaO content >=85wt%；
In described coal dust, grade is more than the 90wt% that the coal dust of below 80 mesh accounts for described coal dust total amount.
Method the most according to claim 8, it is characterised in that the temperature of described heating
For 90-120 DEG C, the time is 60-120min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245142.3A CN105905904B (en) | 2016-04-19 | 2016-04-19 | Compound binding agent and utilize compound binding agent carry out the molding method of carbide raw material |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610245142.3A CN105905904B (en) | 2016-04-19 | 2016-04-19 | Compound binding agent and utilize compound binding agent carry out the molding method of carbide raw material |
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| CN105905904B CN105905904B (en) | 2018-07-24 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430201A (en) * | 2016-12-02 | 2017-02-22 | 神雾环保技术股份有限公司 | Method for preparing calcium carbide |
| CN107010626A (en) * | 2017-04-11 | 2017-08-04 | 北京柯林斯达科技发展有限公司 | A kind of method that carbonaceous raw material prepares pelletizing method carbide raw material with quick lime mixed-forming |
| CN107572528A (en) * | 2017-08-16 | 2018-01-12 | 神雾环保技术股份有限公司 | The method for preparing production calcium carbide pelletizing |
| CN109970063A (en) * | 2019-03-28 | 2019-07-05 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | A kind of method producing calcium carbide and feed proportioning system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102225765B (en) * | 2011-05-10 | 2014-01-01 | 云南邦特新材料有限公司 | Mixed pellets composed of fine coal powder and limestone powder for producing calcium carbide |
| CN103708457A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN104480302B (en) * | 2014-11-26 | 2017-05-24 | 神雾环保技术股份有限公司 | Agglomerating method of pellets containing superfine pulverized coal and superfine quicklime powder |
| CN104828824B (en) * | 2015-03-24 | 2017-06-13 | 中国科学院过程工程研究所 | A kind of method that carbide slag prepares calcium carbide with coke powder coforming |
-
2016
- 2016-04-19 CN CN201610245142.3A patent/CN105905904B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430201A (en) * | 2016-12-02 | 2017-02-22 | 神雾环保技术股份有限公司 | Method for preparing calcium carbide |
| CN107010626A (en) * | 2017-04-11 | 2017-08-04 | 北京柯林斯达科技发展有限公司 | A kind of method that carbonaceous raw material prepares pelletizing method carbide raw material with quick lime mixed-forming |
| CN107010626B (en) * | 2017-04-11 | 2020-11-03 | 北京柯林斯达科技发展有限公司 | Method for preparing pelletizing calcium carbide raw material by mixing and molding carbonaceous raw material and quick lime |
| CN107572528A (en) * | 2017-08-16 | 2018-01-12 | 神雾环保技术股份有限公司 | The method for preparing production calcium carbide pelletizing |
| CN109970063A (en) * | 2019-03-28 | 2019-07-05 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | A kind of method producing calcium carbide and feed proportioning system |
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| CN105905904B (en) | 2018-07-24 |
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