CN210079748U - System for be used for preparing desulfurization mountain flour - Google Patents
System for be used for preparing desulfurization mountain flour Download PDFInfo
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- CN210079748U CN210079748U CN201920026138.7U CN201920026138U CN210079748U CN 210079748 U CN210079748 U CN 210079748U CN 201920026138 U CN201920026138 U CN 201920026138U CN 210079748 U CN210079748 U CN 210079748U
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Abstract
The utility model discloses a system for be used for preparing desulfurization mountain flour, include material crushing mechanism and with the air current grader of material crushing mechanism intercommunication, the air current grader is connected with the selection powder machine through setting up the first discharge gate on the air current grader, the selection powder machine rear end through set up in discharge gate on the selection powder machine is connected with middlings collection portion and farine collection portion, the selection powder machine with be equipped with the whirlwind section of thick bamboo that is used for collecting the farine between the farine collection portion, the utility model discloses a final grinding system of roller press is equipped with the selection powder machine at the air current grader rear end, selects desulfurization limestone powder and desulfurization limestone middlings through the selection powder machine, and then can prepare desulfurization mountain flour middlings and farine simultaneously, has improved grinding efficiency greatly, and the power consumption descends by a wide margin, and economic benefits is showing.
Description
Technical Field
The utility model relates to a desulfurization mountain flour processing technology field specifically is a system for preparing desulfurization mountain flour.
Background
With the rapid development of modern industry, environmental pollution is becoming more and more serious, and the problem of environmental protection is attracting attention of people. Sulfur dioxide (SO2) is a large-scale atmospheric pollutant, which has great harm to human bodies, animals, plants and buildings, and sulfur dioxide (SO2) in the atmosphere forms acid rain after oxidation and water absorption, SO that soil and lakes can be acidified, and the ecological environment is damaged, which has become a global concern.
The power industry, the ferrous metallurgy industry, the petroleum refining industry, the chemical industry and the like all generate a large amount of flue gas containing sulfur dioxide. The emission of these flue gases after desulfurization is considered to be an effective way to control the sulfur dioxide (SO2) content. In the power industry, limestone is the most commonly used desulfurizing agent due to its abundant mineral products, low price, stable properties and other factors. At present, two main desulfurization methods adopting limestone as a desulfurizing agent are provided, one is dry desulfurization in a circulating fluidized bed furnace, and the other is a wet desulfurization process outside the furnace, and the two desulfurization processes have strict requirements on the fineness of limestone powder.
However, the preparation process for the coarse powder of the desulfurized stone powder mainly comprises a vibration mill, a three-separation powder concentrator, a column mill, a waterfall flow powder concentrator and the like, and the fine powder of the desulfurized stone powder generally comprises a vertical mill system, a ball mill, an O-SePa powder concentrator and the like. However, these production systems can only produce one product individually, which inevitably causes the problems of high power consumption, low yield, high rejection rate, and the like.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a system for preparing desulfurization mountain flour to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a system for be used for preparing desulfurization mountain flour, includes material crushing mechanism and the air classifier who communicates with material crushing mechanism, the air classifier is connected with the selection powder machine through setting up the first discharge gate on the air classifier, the selection powder machine rear end through set up in discharge gate on the selection powder machine is connected with middlings collection portion and farine collection portion, the selection powder machine with be equipped with the cyclone that is used for collecting the farine between the farine collection portion, the air classifier through set up in second discharge gate on the air classifier is connected with the shale shaker, second discharge gate and material crushing mechanism intercommunication on the air classifier, the shale shaker discharge gate is connected with mortar aggregate collection portion.
As a further aspect of the present invention: the material crushing mechanism comprises a steady flow weighing bin and a roller press arranged below the steady flow weighing bin.
As a further aspect of the present invention: and a feeding belt is arranged on a feed inlet of the steady flow weighing bin.
As a further aspect of the present invention: and the discharge port of the roller press is communicated with the feed port of the airflow classifier through a first elevator.
As a further aspect of the present invention: the coarse powder collecting part comprises a second feeding groove communicated with a coarse material outlet of the powder concentrator, the rear end of the second feeding groove is communicated with a coarse material bin through a third lifting machine, and the second feeding groove is an air conveying chute.
As a further aspect of the present invention: the cyclone discharge port is communicated with a first feeding groove, the first feeding groove is communicated with a fine material bin through a second lifting machine, and the first feeding groove is an air conveying groove.
As a further aspect of the present invention: and one end of the airflow classifier is provided with an air inlet of the airflow classifier, the air inlet of the airflow classifier is connected with a first fan through a pipeline, and an air inlet of the fan on the first fan is communicated with an air outlet at the upper end of the cyclone cylinder.
As a further aspect of the present invention: the dust collector is connected to an air outlet of the fan on the first fan through a pipeline, a second fan communicated with the dust collector is arranged on one side of the dust collector, and a discharge hole in the lower end of the dust collector is communicated with the fine powder collecting portion.
As a further aspect of the present invention: and a metering conveying mechanism is arranged between the vibrating screen and the airflow classifier.
As a further aspect of the present invention: the mortar aggregate collecting part comprises a mortar aggregate collecting bin communicated with a discharge port of the vibrating screen, and the mortar aggregate collecting bin is communicated with the discharge port of the vibrating screen through a fourth hoister.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a final grinding system of roller press is equipped with the selection powder machine in the air current grader rear end, selects desulfurization limestone farine and desulfurization limestone middlings through the selection powder machine, and then can prepare desulfurization limestone middlings and farine simultaneously, has improved grinding efficiency greatly, and the power consumption descends by a wide margin, and economic benefits is showing.
Meanwhile, the returned materials of the air classifier in the system are screened, so that qualified aggregate finished products for the pre-mixed mortar are screened out, unqualified products continue to return to the desulfurized stone powder preparation system, the aggregate for the pre-mixed mortar is used as a byproduct for producing the desulfurized stone powder, and an aggregate crushing and grinding system is not required to be independently newly built, so that the investment can be greatly saved.
Drawings
Fig. 1 is an industrial flow chart of the present invention.
In the figure: 1-feeding belt, 2-steady flow weighing bin, 3-roller press, 4-first elevator, 5-airflow classifier, 6-powder concentrator, 7-cyclone cylinder, 8-first fan, 9-dust collector, 10-second fan, 11-first feeding tank, 12-second elevator, 13-second feeding tank, 14-third elevator, 15-metering conveying mechanism, 16-vibrating screen and 17-fourth elevator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, in an embodiment of the present invention, a system for preparing desulfurized stone powder includes a material crushing mechanism, the material crushing mechanism includes a roller press 3 for crushing materials, a feeding belt 1 for feeding materials, and a steady flow weighing bin 2, the rear end of the material crushing system is connected to an air classifier 5 through a first elevator 4, the crushed materials are first sorted through the air classifier 5, the air classifier 5 is provided with a first discharge port and a second discharge port, wherein the materials with smaller particles enter a desulfurized stone powder screening device along with air flow from the first discharge port at the upper end, the materials with larger remaining particles are discharged from the second discharge port at the lower end of the air classifier 5, one part of the materials returns to the steady flow weighing bin 2 to continue crushing, and the other part of the materials enters a mortar aggregate screening device;
the desulfurized stone powder screening device comprises a powder concentrator 6 communicated with the airflow classifier 5, the materials are secondarily sorted by the powder concentrator 6, the sorted materials are respectively discharged from a coarse material outlet and a fine material outlet on the powder concentrator 6, a fine powder collecting part is connected to the fine material outlet on the powder concentrator 6, the fine powder collecting part comprises a cyclone cylinder 7 communicated with a fine powder discharge port on the powder concentrator 6, and the discharge port of the cyclone cylinder 7 conveys the desulfurized fine stone powder discharged from the cyclone cylinder 7 to a fine powder bin through a first feeding groove 11 and a second lifting device 12; a coarse powder collecting part is connected to a coarse powder outlet on the powder concentrator 6 and comprises a coarse powder bin, and the coarse powder bin is communicated with a coarse material outlet on the powder concentrator 6 through a second feeding groove 13 and a third lifting machine 14; in addition, the first feeding groove 11 and the second feeding groove 13 are both air conveying chutes;
an air inlet of the airflow classifier is formed in one side of the airflow classifier 5 and is connected with a first fan 8 through a pipeline, the air inlet of the fan on the first fan 8 is communicated with an air outlet in the upper end of a cyclone cylinder 7, a circulating air channel is formed among the airflow classifier 5, a powder concentrator 6 and the cyclone cylinder 7, in addition, a part of gas exhausted from the cyclone cylinder 7 enters a dust collector 9, a second fan 10 communicated with the dust collector 9 is arranged on one side of the dust collector 9, fine powder carried in the airflow can be separated, the dust is deposited in the dust collector 9, the lower end of the dust collector 9 is communicated with a first feeding groove 11 in a fine powder collecting part through a pipeline, and the adsorption collected in the dust collector 9 can be guided into the fine powder collecting part;
one part of the material with larger particles discharged from a second discharge port on the air classifier 5 is guided into the steady flow weighing bin 2 to be crushed again, the other part of the material is conveyed into the mortar aggregate screening device, the mortar aggregate screening device comprises a metering conveying mechanism 15 communicated with the air classifier 5, a vibrating screen 16 is arranged at the lower end of the metering conveying rack 5, the entered material is screened through the vibrating screen 16, the material which accords with the size of the mortar aggregate in the material is screened out and conveyed into the mortar aggregate bin through a fourth hoisting machine 17, and meanwhile, the rest material after screening is crushed and screened again from a new guide-in roller press 5 or the air classifier 6.
When the utility model is used, limestone with qualified CaO content is conveyed to the steady flow weighing bin 2 by the feeding belt 1, is extruded by the roller press 3 and then is lifted into the airflow classifier 5 by the first elevator 4 for primary classification, the thinner part of limestone particles after primary classification enters the powder concentrator 6 for secondary classification, the fine materials after secondary classification enter the cyclone cylinder 7 along with the airflow, and the powder and the gas are separated in the cyclone 7, the separated and gathered powder forms fine desulfurized lime powder and is collected in a fine powder bin, the coarse material at the secondary screening part forms coarse desulfurized lime powder and is collected in a coarse powder bin, meanwhile, a circulating air channel arranged among the airflow classifier 5, the powder concentrator 6 and the cyclone cylinder 7 provides stable airflow for the airflow classifier 5 and the cyclone cylinder 7, and a dust collector 9 is arranged to recycle dust remaining in the airflow;
the airflow separator 5 separates limestone particles with coarse residual particles for the first time, one part of the limestone particles enters the steady flow weighing bin 2 for secondary crushing, the other part of the limestone particles enters the mortar aggregate screening device, a vibrating screen 16 is arranged in the mortar aggregate screening device, limestone which meets the size of mortar aggregate can be screened out through the vibrating screen 16 and conveyed into a mortar aggregate bin for collection and storage, and in addition, the vibrating screen 16 screens residual limestone materials and then enters the roller press 3 again for crushing and screening.
Example 2
In this embodiment, the vibrating screen 16 in the mortar aggregate screening device is connected with the discharging chute of the elevator 4, and then the mortar aggregate is sorted at the discharging chute of the elevator 4, and in this embodiment, the roller press 3 is selected from HFCG180-160 model, the air classifier 5 is selected from HFV7500 model, the powder concentrator 6 is selected from HFX-M7500 model, after a period of operation, the fine powder of the desulfurized stone powder and the coarse powder of the falling stone powder are obtained by screening, and the screening results are as follows:
as can be seen from the above table, the desulfurization stone powder preparation system can effectively prepare the desulfurization stone powder fine powder and the desulfurization stone powder coarse powder, can ensure the purity of the desulfurization stone powder fine powder and the desulfurization stone powder coarse powder, effectively avoids the phenomena of doping the desulfurization stone powder coarse powder in the desulfurization stone powder fine powder and doping the desulfurization stone powder fine powder in the desulfurization stone powder coarse powder, and detects the product after screening the mortar, wherein the size of the screened mortar aggregate is stable between 0.15mm and 4.75mm, and the production requirement of machine-made sand is met, so that the production precision is improved, and the energy consumption is reduced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A system for preparing desulfurized stone powder, which comprises a material crushing mechanism and an airflow classifier (5) communicated with the material crushing mechanism, it is characterized in that the airflow classifier (5) is connected with a powder concentrator (6) through a first discharge hole arranged on the airflow classifier (5), the rear end of the powder selecting machine (6) is connected with a coarse powder collecting part and a fine powder collecting part through a discharge hole arranged on the powder selecting machine (6), a cyclone (7) for collecting fine powder is arranged between the powder concentrator (6) and the fine powder collecting part, the air classifier (5) is connected with a vibrating screen (16) through a second discharge hole arranged on the air classifier (5), and a second discharge hole in the air classifier (5) is communicated with the material crushing mechanism, and a discharge hole of the vibrating screen (16) is connected with a mortar aggregate collecting part.
2. The system for preparing desulfurized stone powder according to claim 1, wherein said material pulverizing mechanism comprises a steady flow weighing bin (2) and a roller press (3) arranged below the steady flow weighing bin (2).
3. The system for preparing the desulfurized stone powder according to claim 2, wherein the feeding hole of the steady flow weighing bin (2) is provided with a feeding belt (1).
4. The system for preparing the desulfurized stone powder according to claim 2, wherein the discharge port of the roller press (3) is communicated with the feed port of the air classifier (5) through the first elevator (4).
5. The system for preparing desulfurized stone powder according to claim 1, wherein said coarse powder collecting portion comprises a second feeding groove (13) communicated with the coarse material outlet of the powder concentrator (6), the rear end of said second feeding groove (13) is communicated with the coarse material bin through a third elevator (14), and said second feeding groove (13) is an air conveying chute.
6. The system for preparing the desulfurized stone powder according to claim 1, wherein the discharge port of the cyclone (7) is communicated with a first feeding groove (11), the first feeding groove (11) is communicated with a fine material bin through a second hoisting machine (12), and the first feeding groove (11) is an air conveying groove.
7. The system for preparing the desulfurized stone powder according to claim 1, wherein one end of the air classifier (5) is provided with an air inlet of the air classifier, the air inlet of the air classifier is connected with a first fan (8) through a pipeline, and the air inlet of the first fan (8) is communicated with the air outlet at the upper end of the cyclone cylinder (7).
8. The system for preparing desulfurized stone powder according to claim 7, wherein a dust collector (9) is connected to the air outlet of the fan on the first fan (8) through a pipeline, a second fan (10) communicated with the dust collector (9) is arranged on one side of the dust collector (9), and a discharge port at the lower end of the dust collector (9) is communicated with the fine powder collecting part.
9. The system for preparing the desulfurized stone powder according to claim 1, wherein a metering conveying mechanism (15) is arranged between the vibrating screen (16) and the air classifier (5).
10. The system for preparing desulfurized stone powder according to claim 1, wherein said mortar aggregate collecting portion comprises a mortar aggregate collecting bin communicated with a discharge port of the vibrating screen (16), and said mortar aggregate collecting bin is communicated with a discharge port of the vibrating screen (16) through a fourth hoisting machine (17).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920026138.7U CN210079748U (en) | 2019-01-08 | 2019-01-08 | System for be used for preparing desulfurization mountain flour |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920026138.7U CN210079748U (en) | 2019-01-08 | 2019-01-08 | System for be used for preparing desulfurization mountain flour |
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| CN210079748U true CN210079748U (en) | 2020-02-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513515A (en) * | 2019-01-08 | 2019-03-26 | 中建材（合肥）粉体科技装备有限公司 | A kind of system being used to prepare desulfurization mountain flour |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109513515A (en) * | 2019-01-08 | 2019-03-26 | 中建材（合肥）粉体科技装备有限公司 | A kind of system being used to prepare desulfurization mountain flour |
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