CN107915228A - A kind of compound binding agent and preparation method and application - Google Patents
A kind of compound binding agent and preparation method and application Download PDFInfo
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- CN107915228A CN107915228A CN201710986822.5A CN201710986822A CN107915228A CN 107915228 A CN107915228 A CN 107915228A CN 201710986822 A CN201710986822 A CN 201710986822A CN 107915228 A CN107915228 A CN 107915228A
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Abstract
The invention discloses a kind of compound binding agent, it is made of the component of following proportioning：100 parts by weight of sucrose solution of 30wt%, 20 30 parts by weight of phosphoric acid hydrogen two aluminium dry powder, 5 10 parts by weight of chromium oxide dry powder, 20 30 parts by weight of coking coal coal dust, 35 parts by weight of Zinc oxide curative.The compound binding agent can improve jet coal and quick lime pelletizing cold strength at the same time.Preparation method and a kind of method that high-quality calcium carbide is prepared using compound binding agent the present invention discloses a kind of compound binding agent.
Description
Technical field
The present invention relates to binding agent field, and in particular to a kind of compound binding agent and preparation method thereof, also relates to profit
The method that high-quality calcium carbide is prepared with the compound binding agent.
Background technology
Jet coal is a kind of minimum bituminous coal of degree of metamorphism, and caking property is extremely weak, is mainly used for power generation or other power are used,
The area for lacking oil can also be used to extraction low temperature (500 DEG C~600 DEG C) coking oil.Calcium carbide is used in organic chemical synthesis field
In the important source material of production acetylene, application is quite varied, but the shortcomings of its high pollution of production process generally existing, highly energy-consuming.
The power consumption of production calcium carbide can be greatly reduced by producing calcium carbide as raw material using the quick lime of the jet coal of powdery and powdery,
There is huge contribution to energy-saving and emission-reduction, its technological process is：Powdery jet coal carries out shaping generation first with powdery quick lime
Cold pelletizing, cold pelletizing propose to generate hot-bulb group in jet coal after most volatile matter, hot-bulb group enters back into calcium carbide by pyrolysis
Stove carries out reaction generation calcium carbide.We will ensure that pelletizing is provided simultaneously with higher cold strength and thermal strength in this process, make
It disclosure satisfy that its beating during having bad luck.However, during jet coal and quick lime form pelletizing, quick lime is met
The reaction of fierceness can occur after water, generate calcium hydroxide, thus institute is in need plus the binding agent of water be not suitable for jet coal and
The shaping of quick lime, and for need not plus water organic binder bond for, its resistance to temperature is too low, be unable to reach 700 DEG C~
900 DEG C of high temperature, is unable to maintain that the calorific intensity of pelletizing.
Therefore, how at the same time to improve jet coal and quick lime pelletizing cold strength becomes technical problem urgently to be resolved hurrily.
The content of the invention
The technical problem to be solved in the present invention is to provide one kind while improves jet coal and quick lime pelletizing cold strength
Compound binding agent and preparation method thereof, while also provide a kind of method that high-quality calcium carbide is prepared using the compound binding agent.
According to a kind of compound binding agent of the present invention, it is made of the component of following proportioning：The sucrose solution 100 of 30wt%
Parts by weight, phosphoric acid hydrogen two aluminium dry powder 20-30 parts by weight, chromium oxide dry powder 5-10 parts by weight, coking coal coal dust 20-30 parts by weight, oxygen
Change zinc curing agent 3-5 parts by weight.
Within a context, sucrose solution refers to aqueous sucrose solution.
Further, it is made of the component of following proportioning：100 parts by weight of sucrose solution of 30wt%, phosphoric acid hydrogen two aluminium
Dry powder 20-28 parts by weight, chromium oxide dry powder 6-8 parts by weight, coking coal coal dust 23-27 parts by weight, Zinc oxide curative 3-5 weight
Part.
Further, it is made of the component of following proportioning：100 parts by weight of sucrose solution of 30wt%, phosphoric acid hydrogen two aluminium
25 parts by weight of dry powder, 8 parts by weight of chromium oxide dry powder, 25 parts by weight of coking coal coal dust, 4 parts by weight of Zinc oxide curative.
Further, the granularity of chromium oxide is not higher than 150 μm, and the granularity of zinc oxide is not higher than 150 μm, the grain of coking coal coal dust
Degree is not higher than 500 μm.
Further, the granularity of chromium oxide is not higher than 50 μm, and the granularity of zinc oxide is not higher than 50 μm, the granularity of coking coal coal dust
Not higher than 150 μm.
According to a kind of preparation method of compound binding agent of the present invention, comprise the steps of：
1a) by recipe ratio prepare each component, by phosphoric acid hydrogen two aluminium dry powder add sucrose solution in, uniform stirring to completely it is molten
Solution；
1b) in 1a) chromium oxide dry powder and coking coal coal dust, uniform stirring are added in gained mixture；
1c) in 1b) Zinc oxide curative is added in gained mixture, uniform stirring is to forming gelatinous liquid-solid mixing
Body, up to compound binding agent.
A kind of method that calcium carbide is prepared using compound binding agent according to the present invention, it is characterised in that comprise the steps of：
It is 2a) 1 by weight ratio：1-1.3：0.1-0.2 jet coals, quick lime and compound binding agent are uniformly mixed；
Mixture 2b) is subjected to forming processes by two pairs of rollers ball press, obtains cold pelletizing, the line pressure of wherein ball press is set
It is set to 10-12t/cm；
2c) cold pelletizing is put into pyrolysis oven and carries out pyrolysis processing, obtains hot-bulb group, wherein pyrolysis temperature for 700 DEG C-
900 DEG C, pyrolysis time 1h-2h；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Further, the granularity of jet coal is not higher than 1000 μm, and the granularity of quick lime is not higher than 1000 μm.
Further, the granularity of jet coal is not higher than 150 μm, and the granularity of quick lime is not higher than 150 μm.
Due to being used in upper technical solution, the compound binding agent according to the present invention is using sucrose solution and coking coal as former
Material, at normal temperatures, the sucrose in compound binding agent can react with quick lime produces lime saccharate so that cold pelletizing is able to maintain that
Higher intensity, and in pyrolytic process, the coking coal in compound binding agent can produce gel, be uniformly dispersed in pelletizing
Portion, gel form organic backbone after curing, and can greatly improve the intensity of hot-bulb, secondly the phosphoric acid hydrogen in compound binding agent
Two aluminium and chromium oxide form AlPO at high temperature4、Al(PO3)3And Cr (PO3)3Deng crystal form, inorganic skeleton is formed, also can significantly be carried
The intensity of high fever pelletizing, so as to finally realize while improve jet coal and the technique effect of quick lime pelletizing cold strength.Separately
Outside, compound binding agent is raw materials used cheap and easy to get, and preparation process is simple, effectively reduces production cost.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the flow chart according to the preparation method of the compound binding agent of the present invention；
Fig. 2 is the flow chart for the method that high-quality calcium carbide is prepared using compound binding agent.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not considered as limiting the invention.
The sucrose solution of the overall 30wt% by 100 parts by weight of compound binding agent according to the present invention, 20-30 parts by weight
Phosphoric acid hydrogen two aluminium dry powder, the chromium oxide dry powder of 5-10 parts by weight, the oxygen of the coking coal coal dust of 20-30 parts by weight and 3-5 parts by weight
Change zinc curing agent composition.Prepare jet coal and quick lime pelletizing using the compound binding agent, at room temperature, quick lime can with it is compound
Sucrose in binding agent reacts, and generates lime saccharate, the intensity of lime saccharate is very high, so as to improve the intensity of cold pelletizing；
In pyrolytic process, when temperature is in 400 DEG C~500 DEG C, coking coal can produce substantial amounts of gel, immerse whole pelletizing, be formed
Network structure, and with temperature be increased to 800~900 DEG C when, gel gradually cures, and forms the semicoke network of high intensity,
So as to maintain the intensity that hot-bulb is rolled into a ball；The phosphoric acid hydrogen two aluminium in compound binding agent and chromium oxide can give birth to after 700 DEG C at the same time
Into AlPO4、Al(PO3)3And Cr (PO3)3Deng crystal form, the intensity that also can further maintain hot-bulb to roll into a ball., can based on above-mentioned mechanism
Jet coal and the cold strength of quick lime pelletizing is set to be improved.
As shown in Figure 1, the preparation method according to the compound binding agent of the present invention mainly includes the following steps：
1a) by recipe ratio prepare each component, by phosphoric acid hydrogen two aluminium dry powder add sucrose solution in, uniform stirring to completely it is molten
Solution；
1b) in 1a) chromium oxide dry powder and coking coal coal dust, uniform stirring are added in gained mixture；
1c) in 1b) Zinc oxide curative is added in gained mixture, uniform stirring is to forming gelatinous liquid-solid mixing
Body, up to compound binding agent.
As shown in Fig. 2, high-quality calcium carbide is prepared using the compound binding agent prepared by the above method, it is overall comprising following
Step：
It is 2a) 1 by weight ratio：1-1.3：0.1-0.2 jet coals, quick lime and compound binding agent are uniformly mixed；
Mixture 2b) is subjected to forming processes by two pairs of rollers ball press, to the cold ball of spheroid shape that size is 20mm~60mm
Group, the line pressure of wherein ball press are arranged to 10-12t/cm；
2c) cold pelletizing is put into pyrolysis oven and carries out pyrolysis processing, obtains the spheroid shape hot-bulb that size is 20mm~60mm
Group, wherein pyrolysis temperature are 700 DEG C -900 DEG C, pyrolysis time 1h-2h；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Embodiment 1
The preparation method of the compound binding agent of the embodiment of the present invention 1, comprises the steps of：
1a) 25kg phosphoric acid hydrogen two aluminiums dry powder is added in the sucrose solution that 100kg concentration is 30wt%, uniform stirring is to complete
Fully dissolved；
1b) in 1a) the chromium oxide dry powder of 8kg granularities no more than 50 μm is added in gained mixture and 25kg granularities are not more than
150 μm of coking coal coal dust, uniform stirring；
1c) in 1b) Zinc oxide curative that 4kg granularities are not more than 50 μm, uniform stirring to shape are added in gained mixture
The liquid-solid mixture of gelled, up to compound binding agent.
High-quality calcium carbide is prepared using the compound binding agent prepared by the above method, is totally comprised the steps of：
100kg jet coal of the granularity no more than 150 μm, granularity 2a) are not more than to 150 μm of 110kg quick limes and 15kg
Compound binding agent is uniformly mixed；
Mixture 2b) is subjected to forming processes by being arranged to the roll-in ball machine of 10t/cm to line pressure, is to size
The cold pelletizing of spheroid shape of 20mm；
2c) cold pelletizing is put into pyrolysis oven under 800 DEG C of high temperature and is pyrolyzed 1.5h, obtains the spheroid shape heat that size is 20mm
Pelletizing；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Embodiment 2
The preparation method of the compound binding agent of the embodiment of the present invention 2, comprises the steps of：
1a) 20kg phosphoric acid hydrogen two aluminiums dry powder is added in the sucrose solution that 100kg concentration is 30wt%, uniform stirring is to complete
Fully dissolved；
1b) in 1a) the chromium oxide dry powder of 6kg granularities no more than 100 μm is added in gained mixture and 23kg granularities are little
In 300 μm of coking coal coal dust, uniform stirring；
1c) in 1b) Zinc oxide curative that 3kg granularities are not more than 100 μm, uniform stirring to shape are added in gained mixture
The liquid-solid mixture of gelled, up to compound binding agent.
High-quality calcium carbide is prepared using the compound binding agent prepared by the above method, is totally comprised the steps of：
100kg jet coal of the granularity no more than 500 μm, granularity 2a) are not more than to 500 μm of 100kg quick limes and 10kg
Compound binding agent is uniformly mixed；
Mixture 2b) is subjected to forming processes by being arranged to the roll-in ball machine of 11t/cm to line pressure, is to size
The cold pelletizing of spheroid shape of 30mm；
2c) cold pelletizing is put into pyrolysis oven under 700 DEG C of high temperature and is pyrolyzed 1h, obtains the spheroid shape hot-bulb that size is 30mm
Group；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Embodiment 3
The preparation method of the compound binding agent of the embodiment of the present invention 3, comprises the steps of：
1a) 28kg phosphoric acid hydrogen two aluminiums dry powder is added in the sucrose solution that 100kg concentration is 30wt%, uniform stirring is to complete
Fully dissolved；
1b) in 1a) the chromium oxide dry powder of 8kg granularities no more than 150 μm is added in gained mixture and 27kg granularities are little
In 500 μm of coking coal coal dust, uniform stirring；
1c) in 1b) Zinc oxide curative that 5kg granularities are not more than 150 μm, uniform stirring to shape are added in gained mixture
The liquid-solid mixture of gelled, up to compound binding agent.
High-quality calcium carbide is prepared using the compound binding agent prepared by the above method, is totally comprised the steps of：
2a) by granularity no more than 1000 μm 100kg jet coals, granularity no more than 1000 μm 130kg quick limes and
20kg compound binding agents are uniformly mixed；
Mixture 2b) is subjected to forming processes by being arranged to the roll-in ball machine of 12t/cm to line pressure, is to size
The cold pelletizing of spheroid shape of 40mm；
2c) cold pelletizing is put into pyrolysis oven under 900 DEG C of high temperature and is pyrolyzed 2h, obtains the spheroid shape hot-bulb that size is 40mm
Group；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Embodiment 4
The preparation method of the compound binding agent of the embodiment of the present invention 4, comprises the steps of：
1a) 23kg phosphoric acid hydrogen two aluminiums dry powder is added in the sucrose solution that 100kg concentration is 30wt%, uniform stirring is to complete
Fully dissolved；
1b) in 1a) the chromium oxide dry powder of 7kg granularities no more than 80 μm is added in gained mixture and 20kg granularities are not more than
100 μm of coking coal coal dust, uniform stirring；
1c) in 1b) Zinc oxide curative that 3.5kg granularities are not more than 80 μm is added in gained mixture, uniform stirring is extremely
Gelatinous liquid-solid mixture is formed, up to compound binding agent.
High-quality calcium carbide is prepared using the compound binding agent prepared by the above method, is totally comprised the steps of：
100kg jet coal of the granularity no more than 700 μm, granularity 2a) are not more than to 700 μm of 120kg quick limes and 12kg
Compound binding agent is uniformly mixed；
Mixture 2b) is subjected to forming processes by being arranged to the roll-in ball machine of 10t/cm to line pressure, is to size
The cold pelletizing of spheroid shape of 50mm；
2c) cold pelletizing is put into pyrolysis oven under 750 DEG C of high temperature and is pyrolyzed 1.2h, obtains the spheroid shape heat that size is 50mm
Pelletizing；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Embodiment 5
The preparation method of the compound binding agent of the embodiment of the present invention 5, comprises the steps of：
1a) 30kg phosphoric acid hydrogen two aluminiums dry powder is added in the sucrose solution that 100kg concentration is 30wt%, uniform stirring is to complete
Fully dissolved；
1b) in 1a) the chromium oxide dry powder of 10kg granularities no more than 30 μm is added in gained mixture and 30kg granularities are little
In 200 μm of coking coal coal dust, uniform stirring；
1c) in 1b) Zinc oxide curative that 4.5kg granularities are not more than 30 μm is added in gained mixture, uniform stirring is extremely
Gelatinous liquid-solid mixture is formed, up to compound binding agent.
High-quality calcium carbide is prepared using the compound binding agent prepared by the above method, is totally comprised the steps of：
100kg jet coal of the granularity no more than 250 μm, granularity 2a) are not more than to 250 μm of 115kg quick limes and 18kg
Compound binding agent is uniformly mixed；
Mixture 2b) is subjected to forming processes by being arranged to the roll-in ball machine of 12t/cm to line pressure, is to size
The cold pelletizing of spheroid shape of 60mm；
2c) cold pelletizing is put into pyrolysis oven under 850 DEG C of high temperature and is pyrolyzed 1.8h, obtains the spheroid shape heat that size is 60mm
Pelletizing；
2d) hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
Strength test is carried out respectively to cold pelletizing in above-described embodiment and hot-bulb group, test result is as shown in table 1：
Table 1
Wherein, comparative example selects 100kg jet coals and 110kg quick limes, adds molasses (traditional conventional adhesive of 40kg
Agent), it is uniformly mixed in strength batch mixer, and it is set as that the two pairs of rollers ball press of 10t/cm carries out pressure ball by line pressure, obtain
Cold pelletizing；Cold pelletizing is put into pyrolysis oven and is pyrolyzed 1.5h under 800 DEG C of high temperature, obtains hot-bulb group.
Test result shows：Compared with the comparative example of unused compound binding agent, cold ball made of compound binding agent is used
The compression strength of group and hot-bulb group is significantly increased.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (9)
1. a kind of compound binding agent, it is characterised in that it is made of the component of following proportioning：100 weight of sucrose solution of 30wt%
Measure part, phosphoric acid hydrogen two aluminium dry powder 20-30 parts by weight, chromium oxide dry powder 5-10 parts by weight, coking coal coal dust 20-30 parts by weight, oxidation
Zinc curing agent 3-5 parts by weight.
2. binding agent according to claim 1, it is characterised in that it is made of the component of following proportioning：The institute of 30wt%
State 100 parts by weight of sucrose solution, the phosphoric acid hydrogen two aluminium dry powder 20-28 parts by weight, the chromium oxide dry powder 6-8 parts by weight, institute
State coking coal coal dust 23-27 parts by weight, the Zinc oxide curative 3-5 parts by weight.
3. binding agent according to claim 1, it is characterised in that it is made of the component of following proportioning：The institute of 30wt%
State 100 parts by weight of sucrose solution, 25 parts by weight of phosphoric acid hydrogen two aluminium dry powder, 8 parts by weight of chromium oxide dry powder, the coking coal
25 parts by weight of coal dust, 4 parts by weight of Zinc oxide curative.
4. according to claim 1-3 any one of them binding agents, it is characterised in that the granularity of the chromium oxide is not higher than 150 μ
M, the granularity of the zinc oxide are not higher than 150 μm, and the granularity of the coking coal coal dust is not higher than 500 μm.
5. binding agent according to claim 4, it is characterised in that the granularity of the chromium oxide is not higher than 50 μm, the oxygen
The granularity for changing zinc is not higher than 50 μm, and the granularity of the coking coal coal dust is not higher than 150 μm.
6. a kind of preparation method of claim 1-5 any one of them compound binding agents, it is characterised in that include following step
Suddenly：
1a) prepare each component by recipe ratio, phosphoric acid hydrogen two aluminium dry powder is added in sucrose solution, uniform stirring is to being completely dissolved；
1b) in 1a) chromium oxide dry powder and coking coal coal dust, uniform stirring are added in gained mixture；
1c) in 1b) gained mixture in add Zinc oxide curative, uniform stirring is to gelatinous liquid-solid mixture is formed, i.e.,
Obtain compound binding agent.
A kind of 7. method for preparing calcium carbide using claim 1-5 any one of them compound binding agents, it is characterised in that include
Following steps：
It is 2a) 1 by weight ratio：1-1.3：0.1-0.2 jet coals, quick lime and compound binding agent are uniformly mixed；
Mixture 2b) is subjected to forming processes by two pairs of rollers ball press, cold pelletizing is obtained, wherein the line pressure of the ball press is set
It is set to 10-12t/cm；
2c) the cold pelletizing is put into pyrolysis oven and carries out pyrolysis processing, obtains hot-bulb group, wherein pyrolysis temperature for 700 DEG C-
900 DEG C, pyrolysis time 1h-2h；
2d) the hot-bulb group is sent to calcium carbide furnace roof, calcium carbide is made through smelting.
8. the method according to the description of claim 7 is characterized in that the granularity of the jet coal be not higher than 1000 μm, the life
The granularity of lime is not higher than 1000 μm.
9. according to the method described in claim 8, it is characterized in that, the granularity of the jet coal be not higher than 150 μm, the raw stone
The granularity of ash is not higher than 150 μm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109737159A (en) * | 2019-01-11 | 2019-05-10 | 大连理工（营口）新材料工程中心有限公司 | A kind of complex salt binder composite friction material and preparation method thereof |
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| CN107129792A (en) * | 2017-04-20 | 2017-09-05 | 神雾环保技术股份有限公司 | The method of compound binding agent and preparation production calcium carbide mixing pelletizing |
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| CN105713694A (en) * | 2014-12-23 | 2016-06-29 | 株式会社Posco | Coal briquettes and method for manufacturing the same |
| CN106753653A (en) * | 2016-11-24 | 2017-05-31 | 神雾环保技术股份有限公司 | Jet coal and high-temperature agglomerant of quick lime mixing pelletizing shaping and preparation method thereof |
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