CN205061902U - Mechanism sand production system - Google Patents
Mechanism sand production system Download PDFInfo
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- CN205061902U CN205061902U CN201520714479.5U CN201520714479U CN205061902U CN 205061902 U CN205061902 U CN 205061902U CN 201520714479 U CN201520714479 U CN 201520714479U CN 205061902 U CN205061902 U CN 205061902U
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- 239000004576 sand Substances 0.000 title claims abstract description 126
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 40
- 239000000843 powder Substances 0.000 claims abstract description 117
- 239000000463 material Substances 0.000 claims abstract description 80
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000012216 screening Methods 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 8
- 238000003801 milling Methods 0.000 claims abstract description 5
- 239000012716 precipitator Substances 0.000 claims description 27
- 238000007599 discharging Methods 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 abstract description 34
- 239000010959 steel Substances 0.000 abstract description 34
- 235000019738 Limestone Nutrition 0.000 abstract description 13
- 239000006028 limestone Substances 0.000 abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 239000008187 granular material Substances 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 abstract 2
- 235000013312 flour Nutrition 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 44
- 239000004575 stone Substances 0.000 description 15
- 238000010298 pulverizing process Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 10
- 230000005484 gravity Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000002994 raw material Substances 0.000 description 6
- 238000000498 ball milling Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000002203 pretreatment Methods 0.000 description 3
- 238000012958 reprocessing Methods 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- UPLPHRJJTCUQAY-WIRWPRASSA-N 2,3-thioepoxy madol Chemical compound C([C@@H]1CC2)[C@@H]3S[C@@H]3C[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@](C)(O)[C@@]2(C)CC1 UPLPHRJJTCUQAY-WIRWPRASSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The utility model provides a mechanism sand production system, including the hopper, still including the ball mill of the material that is used for milling, will material transfer to the connecting band of ball mill in the hopper for the whitewashed machine of high efficiency selection of screening ball mill gained material with the extremely high -efficient lifting machine that selects the powder machine of the ejection of compact conveying of ball mill, is used for the high -efficient machine -processed sand storage that selects the quick -witted ejection of compact of powder of receipt. The beneficial effects of the utility model reside in that can make the controllable machine -processed sand of fineness modulus, the proportion of big or small steel ball and the volume of advancing the mill of rubble granule in grinding through the adjustment promptly can reach the purpose of the grading of the machine -processed sand of adjustment, and that gos back the high -efficient selection powder machine of accessible adjustment spills the charging tray rotational speed, obtain ideal grain grading's machine -processed sand and limestone flour, have effectively solved the grain grading and the uncontrollable problem of dust content of machine -processed sand among the prior art.
Description
Technical field
The utility model belongs to Machine-made Sand production technical field, particularly relates to a kind of Machine-made Sand production system.
Background technology
Sand plays the space of filling coarse aggregate in concrete, improves the vital role of concrete workability.Conventional sand has natural river sand, artificial rubble Machine-made Sand, artificial cobble Machine-made Sand etc.Traditional production river sand excavates in each river course, because a large amount of river courses is by excessive exploitation, affects the speed of the flood passage in river course, the ecotope of destroyed area, the hole, hole of causing because digging sand, and each rubbish also can be caused to precipitate, the harm such as the water quality in havoc Ha Noi.So national explicit order specifies to allow to exploit except the sand of river except a small amount of river course again, all the other are all forbidden exploitation.Therefore, cause this resource critical shortage, thus cause constantly raising with sand cost and the material difficult phenomenon asked in concrete.Therefore Ge Zhi sand enterprise or Concrete Enterprises are according to " premixing machine-made sand concrete technological standard DBJ/T50-099-2010 " standard-required, the particle with rubble manufactures the nearly particle shape of same river sand facies all sight is turned to replace this river sand, i.e. Machine-made Sand.According to the standard of " GB/T14684-2011 construction sand ", Machine-made Sand is defined as " through except soil process, be made up of Mechanical Crushing, screening, particle diameter is less than the rock of 4.75mm, mill tailings or industrial residue particle; but do not comprise particle that is soft, weathering, and be commonly called as artificial sand ".
In prior art, the preparation of Machine-made Sand comprises after carpolite fragmentation, various grain composition aggregate is separated by each sieve aperture in sieve shaker, obtain large small crushed stone, thickness sand, then fine sand is sent into special sand machine processed, fine sand is pulverized again, particle diameter is selected at the powder of below 0.075mm, and as limestone powder, particle diameter is then Machine-made Sand in the part of more than 0.075mm.Although this manufacture method decreases the generation of powder in sand, its grain composition is still reasonable not, and along with the minimizing of powder, the fineness modulus of Machine-made Sand sand increases gradually, and the Machine-made Sand causing fineness modulus higher is unfavorable for being applied in concrete.The fluctuation of this production method in use Machine-made Sand fineness (i.e. grating at different levels) is larger, powder content is also unstable, cause the concrete utilizing this Machine-made Sand to make, its sand coarse aggregate ratio and glue material content adjust comparatively frequent, make concrete quality fluctuation larger, and then causing the workload of quality of production controllers comparatively large, production efficiency is low.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of Machine-made Sand production system, the problems such as grain composition and dust content for solving Machine-made Sand in prior art are uncontrollable.
For achieving the above object and other relevant objects, the utility model provides one for achieving the above object and other relevant objects, the utility model provides a kind of Machine-made Sand production system, include hopper, also comprise the ball mill for material of milling, described material in hopper is sent to the connecting band of ball mill, for screening the high-efficient powder concentrator of ball mill gained material, the discharging of ball mill is sent to the lift of high-efficient powder concentrator, for receiving the machine-processed sand storage of high-efficient powder concentrator discharging.
Further, the air outlet of described high-efficient powder concentrator is connected with dust-precipitator, and the air outlet of described dust-precipitator is connected with dust collecting fan.
Further, the discharge port of described dust-precipitator is connected with fine powder storehouse of gathering dust.
Further, the air outlet of described ball mill, lift is connected with the inlet mouth of described high-efficient powder concentrator.
Preferably, described ball mill is horizontal ball mill, and the steel ball that the structure of horizontal ball mill is conducive in ball mill carries out ball milling to material.
Preferably, described ball mill is of a size of Ф 2.2m × 6.5m.
Preferably, described ball mill is of a size of Ф 1.8m × 13m.
Preferably, the model of described high-efficient powder concentrator is HES-30.
As mentioned above, the utility model Machine-made Sand production system has following beneficial effect: sent into by the building stones of particle diameter≤5mm and be equipped with in the ball mill of steel ball, by milling of the steel ball of different diameter, unnecessary powder is selected by high-efficient powder concentrator after going out mill by material again, obtains Machine-made Sand and the Wingdale powder of ideal grain composition.The beneficial effects of the utility model are that the fineness modulus of the Machine-made Sand obtained is controlled, enter mill amount namely by the ratio of large small ball in adjustment ball mill and building stones particle, can reach the object grinding rate of adjustment sand; Scattering plate rotating speed also by adjusting high-efficient powder concentrator carrys out the powder content in controlling mechanism sand, and rotating speed is higher, and the dust taken away by air-flow is more, and the powder content in Machine-made Sand is fewer, selects powder effect better.The Machine-made Sand powder content that high-efficient powder concentrator filters out controls within 7%, namely in Machine-made Sand the weight content of the material of particle diameter < 0.15mm lower than 7%, the material of the particle diameter < 0.15mm filtered out is collected as limestone powder by dust-precipitator, obtain Machine-made Sand and the limestone powder of ideal granule grating, efficiently solve grain composition and the uncontrollable problem of dust content of Machine-made Sand in prior art, simultaneously, Wingdale all can be used as concrete blended feedstock by the obtained Machine-made Sand of the utility model production system and limestone powder, effectively improve the utilization ratio of Wingdale.Obtained Machine-made Sand meets two district's sand standards in " building sand GB/T14684-2011 " standard, and grating classification is I level, according to the classification of fineness modulus, belongs to medium sand specification.Compared to utilizing natural river sand to prepare concrete as raw material, the concrete cost that the Machine-made Sand utilizing the utility model production system to obtain prepares same intensity obviously reduces.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation of the utility model Machine-made Sand production system.
Drawing reference numeral illustrates:
1 hopper
2 ball mills
3 lifts
4 high-efficient powder concentrators
5 dust-precipitators
6 machine-processed sand storages
7 gather dust fine powder storehouse
8 dust collecting fans
Embodiment
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this specification sheets can understand other advantages of the present utility model and effect easily.
Fig. 1 is shown as the structural representation of the utility model Machine-made Sand production system, include hopper 1, also comprise the ball mill 2 for material of milling, material in hopper 1 is sent to the connecting band of ball mill 2, for screening the high-efficient powder concentrator 4 of ball mill 2 gained material, the discharging of ball mill 2 is sent to the lift 3 of high-efficient powder concentrator 4, for receiving the machine-processed sand storage 6 of high-efficient powder concentrator 4 discharging; The air outlet of high-efficient powder concentrator 4 is connected with dust-precipitator 5, and the air outlet of dust-precipitator 5 is connected with dust collecting fan 8; The discharge port of dust-precipitator 5 is connected with fine powder storehouse 7 of gathering dust; The air outlet of ball mill 2, lift 3 is connected with the inlet mouth of high-efficient powder concentrator 4.Ball mill 2 is horizontal ball mill, and the diameter of the horizontal ball mill cylindrical shell that the present embodiment adopts is 1.8m, length is 13m, and the supplier of high-efficient powder concentrator 4 is Shangrao machine works, and model is HES-30.
The operational process of the utility model Machine-made Sand production system is as follows: the building stones of particle diameter≤5mm that upstream pre-treatment obtains by shovel loader drop in hopper 1, material in hopper 1 is sent in ball mill 2 through travelling belt, ball mill 2 is horizontal ball mill, the diameter of the horizontal ball mill cylindrical shell that the present embodiment adopts is 1.8m, long is 13m, the steel ball of ball mill 2 inside carries out ball milling to building stones, the fineness of materials modulus of ball mill discharging mouth is 2.2 ~ 2.6, this material enters lift 3 by the screen cloth that ball mill 2 exports, material is sent into high-efficient powder concentrator 4 by lift 3, the supplier of the present embodiment high-efficient powder concentrator 4 is Shangrao machine works, model HES-30, rotating shaft in high-efficient powder concentrator 4 drives scattering plate to rotate and sheds material, the rotating speed of rotating shaft is 250-400r/min, material passes through selection by winnowing, filter out the material of particle diameter >=0.15mm, this material enters machine-processed sand storage 6 by discharge port under gravity, be the Machine-made Sand of desirable grating, the air outlet of high-efficient powder concentrator 4 is connected to dust-precipitator 5 by vent-pipe, in high-efficient powder concentrator 4, the material of particle diameter < 0.15mm enters dust-precipitator 5 under the effect of air-flow, dust-precipitator 5 is by separated from the gas for the powder material of particle diameter < 0.15mm, powder material enters by the discharge port of dust-precipitator 5 fine powder storehouse 7 of gathering dust, be limestone powder, also can be used as concrete blended feedstock.The uncontaminated air of dust-precipitator 5, by entering in air after dust collecting fan 8 reprocessing, contains dust, environmentally safe hardly.
Wherein, the air outlet of ball mill 2, lift 3 is connected to the inlet mouth of high-efficient powder concentrator 4 by vent-pipe, make the dusty gas in ball mill 2, lift 3 enter high-efficient powder concentrator 4 to screen, while realizing being vented ball mill 2, lift 3, also reclaim the dust in air-flow.
The method of the utility model Machine-made Sand production system production mechanism sand comprises the following steps:
(1) charging is pulverized: the particle first by stoning machine, stone pulverizing being become particle diameter≤5mm, again building stones are carried out ball mill pulverizing, the equipment of ball mill pulverizing is ball mill, be preferably horizontal ball mill, its barrel diameter is 1.8m, long is 13m, inlet amount is 100T/h, 80mm diameter steel ball and 90mm diameter steel ball is provided with in ball mill, steel ball gross weight is fixed as 22.8T, the gross weight of 80mm diameter steel ball is 11:9 with the ratio of the gross weight of 90mm steel ball, namely 80mm diameter steel ball accounts for 55% of steel ball gross weight in ball mill, 90mm diameter steel ball accounts for 45% of steel ball gross weight in ball mill,
(2) discharging is screened: the material after pulverizing screens, and obtains described Machine-made Sand.The screening of material adopts high-efficient powder concentrator, the inlet amount of high-efficient powder concentrator can adjust between 90-150T/h, in operational process, the set(ting)value of high-efficient powder concentrator inlet amount should be more than or equal to feeding of ball mill amount, the material entering high-efficient powder concentrator from ball mill is avoided to be detained at entrance, the actual inlet amount of high-efficient powder concentrator and the inlet amount of ball mill are consistent, be preferably 100T/h, the power of the high-efficient powder concentrator that the present embodiment adopts is 18kw, supplier is Shangrao machine works, model HES-30, the rotating speed of high-efficient powder concentrator rotating shaft is set to 400r/min, the sorting equipment of high-efficient powder concentrator inside operationally forms classification air-flow, the distribution of its classification air-flow is reasonable, and grading room space is larger.After material enters powder separating machine, rotating shaft drives scattering plate to rotate and sheds material, carries out sizing screening to material, the material shed passes through selection by winnowing, the material of particle diameter >=0.15mm is greater than wind-force by the effect of gravity, discharges, as Machine-made Sand from the discharge port of high-efficient powder concentrator bottom; The effect of the material by wind of particle diameter < 0.15mm is greater than gravity, enters dust-precipitator be collected rear as limestone powder with air-flow, and the speed of the material of high-efficient powder concentrator screening particle diameter < 0.15mm is 10T/h.The Machine-made Sand powder content that high-efficient powder concentrator filters out lower than 7%, namely in Machine-made Sand the weight content of the material of particle diameter < 0.15mm lower than 7%.The Machine-made Sand fineness obtained by the utility model production system meets two district's sand standards (seeing the following form 1) in " building sand GB/T14684-2011 " standard completely, and grating classification is I level.Following table 1 is the obtained Machine-made Sand grain composition parametric statistics table of the Machine-made Sand that obtains of existing shaping process and the utility model production method.The concrete preparation method of existing shaping process indication is: the slabstone gathered from mine is after fragmentation, again with belt-conveying to screening system, filter out the material of particle diameter at below 5mm by the sieve of 5mm specification, be the Machine-made Sand that existing shaping process is obtained.
Table 1
As apparent from Table 1, in the Machine-made Sand that obtains of the utility model, particle diameter is that the particle at 0.075mm and the sieve end obviously reduces.Particle diameter, can require join in concrete as raw material according to concrete workability as limestone powder at the particle of below 0.15mm.In the utility model production system, automatic continuous sampling point also can be installed, the product produced is detected on time, judge whether its quality meets grating requirement according to detected result, thus reach the object that produced Machine-made Sand quality is monitored at any time, adjusted flexibly, the concrete product steady quality that this Machine-made Sand of utility is produced.The specification of Machine-made Sand is divided into coarse sand, medium sand, fine sand by fineness modulus, and its fineness modulus is respectively 3.7 ~ 3.1,3.0 ~ 2.3,2.2 ~ 1.6, and the fineness modulus of the Machine-made Sand that the utility model is produced is 2.5, belongs to medium sand specification.
Cost comparisons:
Following table 2 is the raw material dosage that utilizes river sand to be raw material and the C30 premixing machine-made sand concrete that utilizes the utility model medium sand to prepare for raw material and cost synopsis.
Table 2
In upper table 2, the unit preparing each raw material that concrete adopts is kg/m
3, ultra fine sand is wherein river sand, and medium sand is the Machine-made Sand adopting the utility model production system obtained.From upper table 2, in same material price, the obtained Machine-made Sand of the utility model is adopted to prepare concrete, not only effectively make use of limestone resource, and reduce concrete folk prescription cost value, in addition, close with the concrete work performance obtained by the utility model Machine-made Sand by natural river sand, both slump/divergences closely, meet the needs of construction completely.
Embodiment 2
The Machine-made Sand production system of the present embodiment is identical with embodiment 1, and ball mill 2 is horizontal ball mill, and the diameter of the horizontal ball mill cylindrical shell that the present embodiment adopts is 2.2m, length is 6.5m, and the supplier of high-efficient powder concentrator 4 is Shangrao machine works, and model is HES-30.
The operational process of the utility model Machine-made Sand production system is as follows: the building stones of particle diameter≤5mm that upstream pre-treatment obtains by shovel loader drop in hopper 1, material in hopper 1 is sent in ball mill 2 through travelling belt, ball mill 2 is horizontal ball mill, its barrel diameter is 2.2m, long is 6.5m, the steel ball of ball mill 2 inside carries out ball milling to building stones, the fineness of materials modulus of ball mill discharging mouth is 2.2 ~ 2.6, this material enters lift 3 by the screen cloth that ball mill 2 exports, material is sent into high-efficient powder concentrator 4 by lift 3, high-efficient powder concentrator 4 filters out the material of particle diameter >=0.15mm, this material enters machine-processed sand storage 6 by discharge port, be the Machine-made Sand of desirable grating, the air outlet of high-efficient powder concentrator 4 is connected to dust-precipitator 5 by vent-pipe, dust-precipitator 5 is by separated from the gas for the powder material of particle diameter < 0.15mm, powder material enters by the discharge port of dust-precipitator 5 fine powder storehouse 7 of gathering dust, be limestone powder, also can be used as concrete blended feedstock.The uncontaminated air of dust-precipitator 5, by entering in air after dust collecting fan 8 reprocessing, contains dust, environmentally safe hardly.
Wherein, the air outlet of ball mill 2, lift 3 is connected to the inlet mouth of high-efficient powder concentrator 4 by vent-pipe, make the dusty gas in ball mill 2, lift 3 enter high-efficient powder concentrator 4 to screen, while realizing being vented ball mill 2, lift 3, also reclaim the dust in air-flow.
The method of the utility model Machine-made Sand production system production mechanism sand comprises the following steps:
(1) charging is pulverized: the particle first by stoning machine, stone pulverizing being become particle diameter≤5mm, again building stones are carried out ball mill pulverizing, the equipment of ball mill pulverizing is ball mill, be preferably horizontal ball mill, its barrel diameter is 2.2m, long is 6.5m, inlet amount is 100T/h, 80mm diameter steel ball and 90mm diameter steel ball is provided with in ball mill, steel ball gross weight is fixed as 22.8T, the gross weight of 80mm diameter steel ball is 1:1 with the ratio of the gross weight of 90mm steel ball, namely 80mm diameter steel ball accounts for 50% of steel ball gross weight in ball mill, 90mm diameter steel ball accounts for 50% of steel ball gross weight in ball mill.
(2) discharging is screened: the material after pulverizing screens, and obtains described Machine-made Sand.The screening of material adopts high-efficient powder concentrator, the inlet amount of high-efficient powder concentrator can adjust between 90-150T/h, in operational process, the set(ting)value of high-efficient powder concentrator inlet amount should be more than or equal to feeding of ball mill amount, the material entering high-efficient powder concentrator from ball mill is avoided to be detained at entrance, the actual inlet amount of high-efficient powder concentrator and the inlet amount of ball mill are consistent, be preferably 100T/h, the power of the high-efficient powder concentrator that the present embodiment adopts is 18kw, supplier is Shangrao machine works, model HES-30, the rotating speed of high-efficient powder concentrator rotating shaft is set to 320r/min, the sorting equipment of high-efficient powder concentrator inside operationally forms classification air-flow, the distribution of its classification air-flow is reasonable, and grading room space is larger.After material enters powder separating machine, rotating shaft drives scattering plate to rotate and sheds material, carries out sizing screening to material, the material shed passes through selection by winnowing, the material of particle diameter >=0.15mm is greater than wind-force by the effect of gravity, discharges, as Machine-made Sand from the discharge port of high-efficient powder concentrator bottom; The effect of the material by wind of particle diameter < 0.15mm is greater than gravity, enters dust-precipitator be collected rear as limestone powder with air-flow, and the speed of the material of high-efficient powder concentrator screening particle diameter < 0.15mm is 8T/h.The Machine-made Sand powder content that high-efficient powder concentrator filters out lower than 7%, namely in Machine-made Sand the weight content of the material of particle diameter < 0.15mm lower than 7%.
Embodiment 3
The Machine-made Sand production system of the present embodiment is identical with embodiment 1, and ball mill 2 is horizontal ball mill, and the diameter of the horizontal ball mill cylindrical shell that the present embodiment adopts is 1.8m, length is 13m, and the supplier of high-efficient powder concentrator 4 is Shangrao machine works, and model is HES-30.
The operational process of the utility model Machine-made Sand production system is as follows: the building stones of particle diameter≤5mm that upstream pre-treatment obtains by shovel loader drop in hopper 1, material in hopper 1 is sent in ball mill 2 through travelling belt, ball mill 2 is horizontal ball mill, being of a size of diameter is 1.8m, long is 13m, the steel ball of ball mill 2 inside carries out ball milling to building stones, the fineness of materials modulus of ball mill discharging mouth is 2.2 ~ 2.6, this material enters lift 3 by the screen cloth that ball mill 2 exports, material is sent into high-efficient powder concentrator 4 by lift 3, high-efficient powder concentrator 4 filters out the material of particle diameter >=0.15mm, this material enters machine-processed sand storage 6 by discharge port, be the Machine-made Sand of desirable grating, the air outlet of high-efficient powder concentrator 4 is connected to dust-precipitator 5 by vent-pipe, dust-precipitator 5 is by separated from the gas for the powder material of particle diameter < 0.15mm, powder material enters by the discharge port of dust-precipitator 5 fine powder storehouse 7 of gathering dust, be limestone powder, also can be used as concrete blended feedstock.The uncontaminated air of dust-precipitator 5, by entering in air after dust collecting fan 8 reprocessing, contains dust, environmentally safe hardly.
Wherein, the air outlet of ball mill 2, lift 3 is connected to the inlet mouth of high-efficient powder concentrator 4 by vent-pipe, make the dusty gas in ball mill 2, lift 3 enter high-efficient powder concentrator 4 to screen, while realizing being vented ball mill 2, lift 3, also reclaim the dust in air-flow.
The method of the utility model Machine-made Sand production system production mechanism sand comprises the following steps:
(1) charging is pulverized: the particle first by stoning machine, stone pulverizing being become particle diameter≤5mm, again building stones are carried out ball mill pulverizing, the equipment of ball mill pulverizing is ball mill, be preferably horizontal ball mill, its barrel diameter is 1.8m, long is 13m, inlet amount is 100T/h, 80mm diameter steel ball and 90mm diameter steel ball is provided with in ball mill, steel ball gross weight is fixed as 22.8T, the gross weight of 80mm diameter steel ball is 2:3 with the ratio of the gross weight of 90mm steel ball, namely 80mm diameter steel ball accounts for 40% of steel ball gross weight in ball mill, 90mm diameter steel ball accounts for 60% of steel ball gross weight in ball mill.
(2) discharging is screened: the material after pulverizing screens, and obtains described Machine-made Sand.The screening of material adopts high-efficient powder concentrator, the inlet amount of high-efficient powder concentrator can adjust between 90-150T/h, in operational process, the set(ting)value of high-efficient powder concentrator inlet amount should be more than or equal to feeding of ball mill amount, the material entering high-efficient powder concentrator from ball mill is avoided to be detained at entrance, the actual inlet amount of high-efficient powder concentrator and the inlet amount of ball mill are consistent, be preferably 100T/h, the power of the high-efficient powder concentrator that the present embodiment adopts is 18kw, supplier is Shangrao machine works, model HES-30, the rotating speed of high-efficient powder concentrator rotating shaft is set to 250r/min, the sorting equipment of high-efficient powder concentrator inside operationally forms classification air-flow, the distribution of its classification air-flow is reasonable, and grading room space is larger.After material enters powder separating machine, rotating shaft drives scattering plate to rotate and sheds material, carries out sizing screening to material, the material shed passes through selection by winnowing, the material of particle diameter >=0.15mm is greater than wind-force by the effect of gravity, discharges, as Machine-made Sand from the discharge port of high-efficient powder concentrator bottom; The effect of the material by wind of particle diameter < 0.15mm is greater than gravity, enters dust-precipitator be collected rear as limestone powder with air-flow, and the speed of the material of high-efficient powder concentrator screening particle diameter < 0.15mm is 6T/h.The Machine-made Sand powder content that high-efficient powder concentrator filters out lower than 7%, namely in Machine-made Sand the weight content of the material of particle diameter < 0.15mm lower than 7%.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (8)
1. a Machine-made Sand production system, include hopper (1), it is characterized in that: also comprise the ball mill (2) for material of milling, material in described hopper (1) is sent to the connecting band of ball mill (2), for screening the high-efficient powder concentrator (4) of ball mill (2) gained material, the discharging of ball mill (2) is sent to the lift (3) of high-efficient powder concentrator (4), for receiving the machine-processed sand storage (6) of high-efficient powder concentrator (4) discharging.
2. Machine-made Sand production system according to claim 1, it is characterized in that: the air outlet of described high-efficient powder concentrator (4) is connected with dust-precipitator (5), the air outlet of described dust-precipitator (5) is connected with dust collecting fan (8).
3. Machine-made Sand production system according to claim 2, is characterized in that: the discharge port of described dust-precipitator (5) is connected with fine powder storehouse (7) of gathering dust.
4. Machine-made Sand production system according to claim 1, is characterized in that: the air outlet of described ball mill (2), lift (3) is connected with the inlet mouth of described high-efficient powder concentrator (4).
5. Machine-made Sand production system according to claim 1, is characterized in that: described ball mill (2) is horizontal ball mill.
6. Machine-made Sand production system according to claim 1, is characterized in that: described ball mill (2) is of a size of Ф 2.2m × 6.5m.
7. Machine-made Sand production system according to claim 1, is characterized in that: described ball mill (2) is of a size of Ф 1.8m × 13m.
8. Machine-made Sand production system according to claim 1, is characterized in that: the model of described high-efficient powder concentrator (4) is HES-30.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236782A (en) * | 2015-09-16 | 2016-01-13 | 重庆富皇混凝土有限公司 | Machine-made sand production system, and production method and application thereof |
| CN106733070A (en) * | 2016-11-16 | 2017-05-31 | 巨石集团有限公司 | The production method and grinding mechanism of a kind of milled glass fiber |
| CN110668726A (en) * | 2019-10-23 | 2020-01-10 | 国家电网有限公司 | Engineering sand making method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105236782A (en) * | 2015-09-16 | 2016-01-13 | 重庆富皇混凝土有限公司 | Machine-made sand production system, and production method and application thereof |
| CN106733070A (en) * | 2016-11-16 | 2017-05-31 | 巨石集团有限公司 | The production method and grinding mechanism of a kind of milled glass fiber |
| CN110668726A (en) * | 2019-10-23 | 2020-01-10 | 国家电网有限公司 | Engineering sand making method |
| CN110668726B (en) * | 2019-10-23 | 2021-12-31 | 国家电网有限公司 | Engineering sand making method |
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