CN104528689A - Powder filling method - Google Patents
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- CN104528689A CN104528689A CN201510009204.6A CN201510009204A CN104528689A CN 104528689 A CN104528689 A CN 104528689A CN 201510009204 A CN201510009204 A CN 201510009204A CN 104528689 A CN104528689 A CN 104528689A
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Abstract
The invention provides a powder filling method. The powder filling method comprises the following steps: (A) the periphery of an opening on the top end of a crucible is heightened by surrounding a baffle, powder is put into the crucible, and the upper surface of the powder is flush with the upper edge of the baffle; (B) the crucible filled with the powder is placed on a vibration vacuum machine, the vacuum vibration is carried out on the crucible, the crucible is taken out and the baffle is removed. The powder filling method has the advantages that the compressibility is high, the cost is low, and the filling efficiency is improved.
Description
Technical field
The present invention relates to carbon element field, in particular to a kind of powder packed method.
Background technology
In recent years, carbon element industry is flourish, and its main raw charcoal and graphite material are the nonmetal solid materials based on carbon, wherein the material that is substantially made up of non-graphite matter carbon of Carbon Materials, and graphite material is then the material be substantially made up of graphite carbon.There is light weight, porousness, electroconductibility, thermal conductivity, erosion resistance, oilness, hot strength, thermotolerance, resistance to sudden heating, low-thermal-expansion, low elasticity, high purity, the features such as workability.
Carbon product can be divided into Graphite Electrodes class, charcoal block class, graphite anode class, carbon electrode class by end-use, stick with paste class, electric charcoal class, carbon fiber bar class, special graphite class, heat exchanger of graphite class etc.Graphite Electrodes class uses current density size according to permission, can be divided into general power graphite electrode.High power electrodes, ultra-high power graphite electrode.Charcoal block can be divided into carbon block for blast furnace, aluminium charcoal block, electric furnace block etc. by purposes.Carbon product can be divided into carbon product, graphite product, Carbon fibe and graphite fibre etc. by working depth height.It is different with production technique that carbon product presses raw material, can be divided into graphite product, carbon product, carbon fiber bar, special graphite goods etc.Carbon product, by ash content size contained by it, can be divided into again how grey goods and few grey goods (containing ash content lower than l%).
Carbon product mainly contains following several: (one) Graphite Electrodes class: main with refinery coke, needle coke for raw material, coal-tar pitch makes bonding agent, through calcining, batching, kneading, die mould, roasting, greying, machining and making, it is the conductor with electrical arc release electric energy, furnace charge being carried out to heat fused in electric arc furnace, according to its quality index height, common power, superpower and ultra high power can be divided into.Graphite Electrodes comprises: (1) general power graphite electrode.Allow the Graphite Electrodes using current density lower than 17A/ centimetres 2, be mainly used in making steel, the common power electric furnace of refining silicon, refining yellow phosphorus etc.(2) oxidation-resistant coated graphite electrode.The Graphite Electrodes of surface-coated one deck oxidation resistant protective layer, is formed and can conduct electricity and the protective layer of high temperature oxidation resisting, reduces consumption of electrode during steel-making.(3) high power graphite electrode.Allow to use current density to be the Graphite Electrodes of 18 ~ 25A/ centimetres 2, be mainly used in the high power electric arc furnace of making steel.(4) ultra-high power graphite electrode.Allow to use current density to be greater than the Graphite Electrodes of 25A/ centimetres 2.Be mainly used in ultra high power electric furnace arrangement for producing steel.(2) graphite anode class: main is raw material with refinery coke, and coal-tar pitch makes binding agent, through calcining, batching, kneading, die mould, roasting, dipping, greying, machining and making.Be generally used for the conductive anode of electrolyzer in electrochemical industry.Comprise: (1) various chemical industry positive plate, (2) various anode bar.(3) carbon electrode class: with carbonaceous material as hard coal and metallurgical coke (or refinery coke) be raw material, coal-tar pitch for binding agent, without greying, the repressed shaping and conductive electrode burnt till.It is not suitable for the electric furnace of melting high-grade alloy steel.Comprise: (l) how grey electrode (electrode produced with hard coal, metallurgical coke, pitch coke); (2) regeneration electrode (electrode produced with synthetic graphite, natural graphite); (3) carbon resistant rod (i.e. charcoal element checker brick); (4) carbon anode (prebaked anode produced with refinery coke); (5) firing electrodes blank.
Nowadays, the loading method making the powders such as the main raw material carbon dust used of carbon product is: the deadweight utilizing powder when loading, vibrations during cooperation tinning or shake, make to cave between powder granule, piles up, load, or directly adopt mechanical presses, carry out mechanical presses to the powder of tinning, the power that rate of compression and extruding apply is directly proportional, therefore in order to obtain higher rate of compression, high-pressure machinery can be adopted to extrude tinning.
But, due to carbon dust or the powder granule of graphite own less, the deadweight of particle itself is also comparatively light, there is frictional force between particle itself, deadweight and vibrations are utilized all can only effectively to compress powder tinning, and adopt mechanical presses, although can rate of compression be improved, because external force is larger, it is the friction increasing between particle itself, while raising rate of compression, particle surface is worn and torn, destroy particle surface, and its filling is efficient also limited.
In view of this, special proposition the present invention.
Summary of the invention
The object of the present invention is to provide a kind of powder packed method, described powder packed method has that rate of compression is high, cost is low, improves the advantages such as filling efficiency.
In order to realize above-mentioned purpose of the present invention, spy by the following technical solutions:
Embodiments provide a kind of powder packed method, comprise the steps:
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, powder is loaded in crucible with make the upper surface of powder with on described baffle plate along concordant;
(B) by load the crucible of powder be placed on carry out vacuum vibration in vibrations vacuum machine after take out crucible, remove baffle plate.
The powder packed method that the embodiment of the present invention provides; by the method for carrying out under vacuum shaking by powder compacting; improve rate of compression, do not adopt the mechanical presses mode of prior art, wearing and tearing can not be caused to material; protect the performance of material own; and working method is simple, low operation cost, also can not increase extra production cost; also improve conveying efficiency while improve filling efficiency, reduce transportation cost.
Preferably, in described step (A), described powder is wherein a kind of in graphite and diamond powder, this powder packed method is mainly for the raw material of the carbon element such as graphite and diamond powder industry through commonly using, because the light weight of these powders own, granularity are little, do not process easily floating with air under vacuum, therefore preferably shake under vacuum.
Preferably, in described step (A), described baffle plate is metal baffle.The baffle plate of metal material can not be adhered to one another with powder, causes the loss of powder.
Preferably, in described step (A), loaded by powder after in crucible and place counterweight on powder surface, placing counterweight is also to promote that in the process carrying out shaking compacting powder is more tight, increasing filling rate further.
Preferably, in described step (A), the particle diameter of described powder is 0.2-0.3mm, if the particle diameter of powder is excessive, can affect its consolidation degree, preferably between 0.2-0.3mm.
Preferably, in described step (B), crucible being put into the time that vacuum vibration machine carries out shaking is 20-40min.
Preferably, in described step (B), crucible being put into the time that vacuum vibration machine carries out shaking is 20-30min, controls certain vibrations time, improves filling rate, but the time is unsuitable long, otherwise its filling cost can rise.
Preferably, in described step (B), the vibration frequency of described vacuum vibration machine is 80-100s
-1.
Preferably, in described step (B), the vibration frequency of described vacuum vibration machine is 90-100s
-1, control certain vibration frequency, more closely knit after powder is shaken.
Preferably, in described step (B), in vacuum vibration machine, place multiple crucible, multiple crucible can be placed in vacuum vibration machine simultaneously carry out vibrations filling, to improve filling efficiency.
Compared with prior art, beneficial effect of the present invention is:
(1) the powder packed method that provides of the embodiment of the present invention, by the method for carrying out under vacuum shaking by powder compacting, improve rate of compression, do not adopt the mechanical presses mode of prior art, wearing and tearing can not be caused to material, protect the performance of material own;
(2) working method is simple, and low operation cost, also can not increase extra production cost;
(3) also improve conveying efficiency while improve filling efficiency, reduce transportation cost.
Embodiment
Below in conjunction with embodiment, embodiment of the present invention are described in detail, but it will be understood to those of skill in the art that the following example only for illustration of the present invention, and should not be considered as limiting the scope of the invention.Unreceipted actual conditions person in embodiment, the condition of conveniently conditioned disjunction manufacturers suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, be and can buy by commercially available the conventional products obtained.
Embodiment 1
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, powder is loaded in crucible with make the upper surface of powder with on baffle plate along concordant;
(B) by load the crucible of powder be placed on carry out vacuum vibration in vibrations vacuum machine after take out crucible, remove baffle plate.
Embodiment 2
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the graphite of 0.2mm load in crucible with make the upper surface of graphite with in metal baffle along concordant;
(B) will load after multiple crucibles of graphite are placed on simultaneously and carry out vacuum vibration 20-40min in vibrations vacuum machine, vibration frequency controls at 80-100s
-1, take out crucible, remove metal baffle.
Embodiment 3
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the graphite of 0.3mm load in crucible with make the upper surface of graphite with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of graphite in vibrations vacuum machine simultaneously and placing counterweight on the surface of graphite, after carrying out vacuum vibration 20-30min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 4
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 40min, vibration frequency controls at 95s
-1, take out crucible, remove metal baffle.
Embodiment 5
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.25mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 85s
-1, take out crucible, remove metal baffle.
Embodiment 6
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the graphite of 0.3mm load in crucible with make the upper surface of graphite with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of graphite in vibrations vacuum machine simultaneously and placing counterweight on the surface of graphite, after carrying out vacuum vibration 20-30min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 7
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 35min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 8
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 95s
-1, take out crucible, remove metal baffle.
Embodiment 9
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the graphite of 0.3mm load in crucible with make the upper surface of graphite with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of graphite in vibrations vacuum machine simultaneously and placing counterweight on the surface of graphite, after carrying out vacuum vibration 20min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 10
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.28mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 11
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 40min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 12
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 80s
-1, take out crucible, remove metal baffle.
Embodiment 13
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 100s
-1, take out crucible, remove metal baffle.
Embodiment 14
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.3mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 30min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Embodiment 15
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, by particle diameter be the diamond powder of 0.25mm load in crucible with make the upper surface of diamond powder with in metal baffle along concordant;
(B) being placed on loading multiple crucibles of diamond powder in vibrations vacuum machine simultaneously and placing counterweight on the surface of diamond powder, after carrying out vacuum vibration 20-30min, vibration frequency controls at 90-100s
-1, take out crucible, remove metal baffle.
Experimental example 1
The powder packed method loadings of embodiment of the present invention 1-15 and the original loadings of crucible are made comparisons, concrete loadings is as shown in table 1 below:
Table 1 comparing result
| Group | The original loadings of each crucible (kg) | Each crucible loadings (kg) of the embodiment of the present invention |
| Embodiment 1 | 85 | 102 |
| Embodiment 2 | 85 | 106 |
| Embodiment 3 | 85 | 107 |
| Embodiment 4 | 85 | 105 |
| Embodiment 5 | 85 | 107 |
| Embodiment 6 | 85 | 102 |
| Embodiment 7 | 85 | 106 |
| Embodiment 8 | 85 | 107 |
| Embodiment 9 | 85 | 105 |
| Embodiment 10 | 85 | 107 |
| Embodiment 11 | 85 | 106 |
| Embodiment 12 | 85 | 106 |
| Embodiment 13 | 85 | 107 |
| Embodiment 14 | 85 | 105 |
| Embodiment 15 | 85 | 107 |
As can be seen from Table 1, the powder packed method of embodiment of the present invention 1-15 improves filling ratio conscientiously.
Although illustrate and describe the present invention with specific embodiment, however it will be appreciated that can to make when not deviating from the spirit and scope of the present invention many other change and amendment.Therefore, this means to comprise all such changes and modifications belonged in the scope of the invention in the following claims.
Claims (10)
1. a powder packed method, is characterized in that, comprises the steps:
(A) after the surrounding baffle plate of the top end opening of crucible being enclosed height, powder is loaded in crucible with make the upper surface of powder with on described baffle plate along concordant;
(B) by load the crucible of powder be placed on carry out vacuum vibration in vibrations vacuum machine after take out crucible, remove baffle plate.
2. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (A), described powder is wherein a kind of in graphite and diamond powder.
3. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (A), described baffle plate is metal baffle.
4. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (A), is loaded by powder after in crucible and places counterweight on powder surface.
5. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (A), the particle diameter of described powder is 0.2-0.3mm.
6. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (B), crucible being put into the time that vacuum vibration machine carries out shaking is 20-40min.
7. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (B), crucible being put into the time that vacuum vibration machine carries out shaking is 20-30min.
8. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (B), the vibration frequency of described vacuum vibration machine is 80-100s
-1.
9. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (B), the vibration frequency of described vacuum vibration machine is 90-100s
-1.
10. the fill method of a kind of powder according to claim 1, is characterized in that, in described step (B), in vacuum vibration machine, places multiple crucible.
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| CN201510009204.6A CN104528689B (en) | 2015-01-08 | 2015-01-08 | Powder filling method |
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| CN201510009204.6A CN104528689B (en) | 2015-01-08 | 2015-01-08 | Powder filling method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164978A (en) * | 1981-04-02 | 1982-10-09 | Mitsubishi Heavy Ind Ltd | Wire rod for vapor deposition |
| CN1273556A (en) * | 1997-10-10 | 2000-11-15 | 吸入治疗*** | Powder filling apparatus and method |
| CN102515807A (en) * | 2011-12-26 | 2012-06-27 | 中科恒达石墨股份有限公司 | Method for packing graphite micro-powder in graphite crucible |
| CN103616809A (en) * | 2013-11-29 | 2014-03-05 | 亿和精密工业（苏州）有限公司 | Carbon powder filling machine |
| CN104226907A (en) * | 2014-09-30 | 2014-12-24 | 无锡康柏斯机械科技有限公司 | Lost foam casting process capable of compacting sand further |
-
2015
- 2015-01-08 CN CN201510009204.6A patent/CN104528689B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57164978A (en) * | 1981-04-02 | 1982-10-09 | Mitsubishi Heavy Ind Ltd | Wire rod for vapor deposition |
| CN1273556A (en) * | 1997-10-10 | 2000-11-15 | 吸入治疗*** | Powder filling apparatus and method |
| CN102515807A (en) * | 2011-12-26 | 2012-06-27 | 中科恒达石墨股份有限公司 | Method for packing graphite micro-powder in graphite crucible |
| CN103616809A (en) * | 2013-11-29 | 2014-03-05 | 亿和精密工业（苏州）有限公司 | Carbon powder filling machine |
| CN104226907A (en) * | 2014-09-30 | 2014-12-24 | 无锡康柏斯机械科技有限公司 | Lost foam casting process capable of compacting sand further |
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| CN104528689B (en) | 2017-01-11 |
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