CN112958447B - Sand and stone powder removal and classification construction process - Google Patents
Sand and stone powder removal and classification construction process Download PDFInfo
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- CN112958447B CN112958447B CN202110174011.1A CN202110174011A CN112958447B CN 112958447 B CN112958447 B CN 112958447B CN 202110174011 A CN202110174011 A CN 202110174011A CN 112958447 B CN112958447 B CN 112958447B
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- sand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/02—Selective separation of solid materials carried by, or dispersed in, gas currents by reversal of direction of flow
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Abstract
The invention discloses a powder-removing and grading construction process for sandstone, which comprises the following steps: the rotor is connected with the motor and is electrified to rotate, and clean air is sent into the first cavity cover from the air inlet; step two: the sand and stone raw materials enter from the feed inlet in a discontinuous and rush manner, the sand and stone are driven to rotate by the motor to break up and remove powder at the position of the rotor, dust is sucked away from the air outlet and discharged for subsequent treatment, the broken up and powder removed sand and stone are discharged from the screening holes on the first diversion grading plate under the action of centrifugal thrust force of the rotation of the rotor, the largest sand and stone are screened by the screening holes on the first diversion grading plate, the arc-shaped diversion grading plate inner wall of the sand and stone do rotary motion once and then are discharged from the screening holes on the bottom plate of the cover, and then the smaller sand and stone are screened by the screening holes on the next diversion grading plate until the sand and stone on the diversion grading plate are screened according to the requirement; the realization is to the quick grading of grit, has reduced subsequent grit work load in grades, has improved production efficiency.
Description
Technical Field
The invention relates to a powder-removing and grading construction process for sand stones, belonging to the technical field of sand stone production.
Background
When the material source is mine mined dolomite stones, a sandstone production system with 300 ten thousand tons of annual output is required to be used, the system adopts dry production, a closed factory building and a dust remover are integrally adopted to meet the requirements of safety and environmental protection, a JND-VI powder concentrator is adopted in a powder separation workshop to separate powder of raw sand with the particle size of less than 3mm, a 15kw spiral elevator, a QPB (II) -4.0 bin pump and a matched DN120 pipeline are adopted to convey stone powder with the particle size of less than 0.075mm, and the conveying capacity is 15 t/h; the following data were obtained by field testing: b19 belt conveyor finished sand (0.075mm-3mm, design conveying capacity 75t/h) has water content of 1.2% -2.38%, and integrally meets the powder selection condition;
in grit production system, the powder removal machine (also called selection powder machine) that adopts at present can not accomplish the quick grading to the grit after accomplishing the powder removal, has increased subsequent grit and has graded work load, has reduced production efficiency.
Disclosure of Invention
In order to solve the technical problem, the invention provides a sand and stone powder removal grading construction process.
The invention is realized by the following technical scheme.
The invention provides a sand and stone powder removing and grading construction process, which uses a machine-made sand pneumatic powder removing machine and comprises the following steps:
the method comprises the following steps: the first cavity cover and the hood are fixed through the support legs, so that the whole equipment is stable, the rotor is connected with the motor and electrified to rotate, and clean air is sent into the first cavity cover from the air inlet;
step two: the sand and stone raw materials enter from the feeding hole in a discontinuous and one-burst mode, the sand and stone are driven to rotate by the motor to break up and remove powder at the position of the rotor, dust is sucked away from the air outlet and discharged for subsequent treatment, the broken up and powder removed sand and stone are discharged from the screening holes in the first diversion grading plate under the action of centrifugal thrust of the rotation of the rotor, the largest sand and stone are screened by the screening holes in the first diversion grading plate, the arc-shaped diversion grading plate inner wall of the sand and stone is discharged from the screening holes in the bottom plate of the hood after making one-time rotary motion, and then the smaller sand and stone are screened by the screening holes in the next diversion grading plate until the sand and stone in the next grade are screened by the screening holes in the diversion grading plate which are arranged according to the needs in a grading manner.
In the first step, the horizontal plane of the first cavity cover and the bottom surface of the hood interior has an inclination angle of between degrees and degrees, so that the inner surface of the first cavity cover and the hood after installation is in an inclined state.
A machine-made sand pneumatic powder remover comprises: the first cavity cover is provided with a rotor which can rotate to break up and remove powder from the gravels, and the first cavity cover is provided with a feed inlet, an air outlet, an air inlet and a discharge outlet for the gravel to enter;
the discharge port is communicated with a grading screening unit for grading and screening the sand.
The feed inlet is obliquely arranged at one end of the first cavity cover.
The air outlet comprises the pipeline that communicates the inside of first cavity cover, and the pipeline connector is located above the air outlet, and the rotor is broken up the dust of taking off behind the powder to the grit, all sucks out from the air outlet in the exit.
The air inlet is a pipeline communicated with the inside of the first cavity cover, the air inlet is oppositely arranged on the opposite side of the axis of the rotor, and when the rotor rotates, clean wind energy introduced into the air inlet is uniformly mixed with dust and then quickly discharged.
The classifying screen unit comprises a hood, a plurality of diversion classifying plates are installed on a bottom plate of the hood at intervals, screening holes with the width reduced in sequence are formed in the diversion classifying plates close to the hood bottom plate from the position close to a rotor to the position far away from the rotor, and each screening hole penetrates through the hood bottom plate from the diversion classifying plates.
The diversion classification plate is arc-shaped, and the bottom of the arc-shaped rotor and the top of the screening hole are at the same height and on the same horizontal line.
And a material receiving cover is arranged on the hood bottom plate corresponding to the lower part of the screening hole.
And support legs for stably supporting the upper part are fixedly arranged at the bottoms of the first cavity cover and the hood.
The invention has the beneficial effects that: the grit after scattering and removing the powder is under the effect of the rotatory centrifugal thrust of rotor, the screening hole on the first water conservancy diversion gradation board is with the biggest grit screening, behind the arcuate water conservancy diversion gradation inboard wall of grit doing once rotary motion, discharge from the screening hole on the cover bottom plate again, then less grit is screened the grit of next grade by the screening hole on the next water conservancy diversion gradation board again, until being accomplished by the screening hole screening on the water conservancy diversion gradation board that sets up according to needs in grades, realize the quick grading to the grit, subsequent grit grading work load has been reduced, and the production efficiency is improved.
Drawings
FIG. 1 is an external structural view of the present invention;
FIG. 2 is a schematic cross-sectional front view of the present invention;
FIG. 3 is a state diagram of the rotor and classifying screen assembly position of the present invention;
in the figure: 1-a first cavity cover; 11-a feed inlet; 12-an air outlet; 13-air inlet; 14-a discharge outlet; 2-a rotor; 3-grading screening machine set; 31-a hood; 32-a flow guiding grading plate; 33-a screening well; 34-a material receiving cover; 4-support leg.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
See fig. 1-3.
The invention relates to a machine-made sand pneumatic powder remover, which comprises: the sand-gravel-free powder-removing device comprises a first cavity cover 1 for containing gravel, wherein a rotor 2 capable of rotating to break up and remove powder from the gravel is arranged on the first cavity cover 1, the rotor 2 is fixed on a breaking piece through a rotating shaft and intervals, which is not stated in the prior art, and a feed port 11 for feeding the gravel into the first cavity cover 1, an air outlet 12, an air inlet 13 and a discharge port 14 are arranged on the first cavity cover 1;
the discharge port 14 is communicated with a grading screening unit 3 for grading and screening sand.
Inside feed inlet 11 got into first cavity cover 1 from the material, inside first cavity cover 1 was sent into from air intake 13 to clear wind, rotor 2 was driven rotatoryly by the motor to the grit and is broken up and take off the powder, and the dust is siphoned off from air exit 12 and is discharged and carry out subsequent processing, and the grit after taking off the powder is carried out the classified screening by classified screening unit 3, accomplishes the quick hierarchical to the grit, has reduced subsequent grit grading work load, has improved production efficiency.
The feed inlet 11 is obliquely arranged at one end of the first cavity cover 1, so that sand can enter the inclined feed inlet 11 quickly.
The air inlet 13 is a pipeline communicated with the inside of the first cavity cover 1, the air inlet 13 is oppositely arranged on the opposite side of the axis of the rotor 2, and when the rotor 2 rotates, clean wind energy introduced into the air inlet 13 is uniformly mixed with dust and then quickly discharged.
The classifying and screening unit 3 comprises a hood 31, a plurality of guide classifying plates 32 are mounted on a bottom plate of the hood 31 at intervals, screening holes 33 with the width gradually reduced are formed in the guide classifying plates 32 close to the bottom plate of the hood 31 from the position close to the rotor 2 to the position far away from the rotor, and each screening hole 33 penetrates through the bottom plate of the hood 31 from the guide classifying plates 32.
The diversion classification plate 32 is arc-shaped, and the bottom of the arc-shaped part close to the rotor 2 and the top of the screening hole 33 are at the same height and on the same horizontal line; because the sand raw material entering from the feed inlet 11 is discontinuously arrayed in a row, the sand which is scattered and powdered by the rotating rotor 2 is screened from the largest sand in the screening holes 33 on the first diversion classification plate 32, the sand is firstly impacted on the inner wall of the arc diversion classification plate 32 to do a rotary motion during screening, and then is discharged from the screening holes 33 on the bottom plate of the hood 31, and then the smaller sand is screened from the sand of the next grade by the screening holes 33 on the next diversion classification plate 32 until the screening is completed by the screening holes 33 on the diversion classification plate 32 which are arranged according to the grading requirements.
The bottom plate of the hood 31 corresponding to the lower part of the screening hole 33 is provided with a material receiving cover 34, so that classified sand and stones can be conveniently accumulated.
The bottom of the first cavity cover 1 and the hood 31 is fixedly provided with a support leg 4 for stably supporting the upper part.
The invention relates to a sand and stone powder removing and grading construction process, which uses the machine-made sand pneumatic powder removing machine and comprises the following steps:
the method comprises the following steps: the first cavity cover 1 and the hood 31 are fixed through the support legs 4, so that the whole equipment is stable, the rotor 2 is connected with the motor and electrified to rotate, and clean air is sent into the first cavity cover 1 from the air inlet 13;
step two: the sand and stone raw materials enter from the feeding hole 11 intermittently in a rush, the rotor 2 is driven by the motor to rotate to break up and remove powder from sand and stone, dust is sucked away from the air outlet 12 and discharged for subsequent treatment, the broken up and powder removed sand and stone are discharged from the screening holes 33 on the first diversion grading plate 32 under the action of the centrifugal thrust of the rotation of the rotor 2, the largest sand and stone are screened by the screening holes 33 on the first diversion grading plate 32, the inner wall of the arc diversion grading plate 32 of sand and stone does a rotary motion, and then the sand and stone are discharged from the screening holes 33 on the bottom plate of the hood 31, and then the smaller sand and stone are screened by the screening holes 33 on the next diversion grading plate 32 until the sand and stone are screened by the screening holes 33 on the diversion grading plate 32 which are arranged according to the grade, so that the sand and stone can be graded quickly, the subsequent sand and stone grading workload is reduced, and the production efficiency is improved.
In the first step, the horizontal surfaces of the first cavity cover 1 and the inner bottom surface of the hood 31 have an inclination angle of 5 ° to 8 °, and the inner surfaces of the first cavity cover 1 and the hood 31 are inclined after being mounted.
Claims (10)
1. The utility model provides a grit desliming hierarchical construction technology which characterized in that has used machine-made sand pneumatic powder remover, includes the step as follows:
the method comprises the following steps: the first cavity cover (1) and the hood (31) are fixed through the support legs (4), so that the whole equipment is stable, the rotor (2) is connected with the motor and electrified to rotate, and clean air is sent into the first cavity cover (1) from the air inlet (13);
step two: the sandstone raw material enters from the feed inlet (11) intermittently in a rush, is driven to rotate by the motor to break up the sandstone at the position of the rotor (2) and remove the powder, the rotor (2) breaks up the sandstone and removes the powder of the dust, the dust is sucked out from the air outlet (12) at the outlet, the dust is sucked out from the air outlet (12) for subsequent treatment, the sand which is scattered and subjected to powder removal is screened by the screening holes (33) on the first diversion classification plate (32) under the action of the centrifugal thrust of the rotation of the rotor (2), and the sand is discharged from the screening holes (33) on the bottom plate of the hood (31) after making one-time rotary motion along the inner wall of the arc diversion classification plate (32), then the smaller sand is screened by the screening holes (33) on the next diversion grading plate (32) until the sand is screened by the screening holes (33) on the diversion grading plate (32) which are arranged according to the grading requirement.
2. The sand-gravel powder-removal grading construction process as claimed in claim 1, characterized in that: in the first step, the horizontal surfaces of the inner bottom surfaces of the first cavity cover (1) and the hood (31) have an inclination angle of 5-8 degrees, so that the inner surfaces of the first cavity cover (1) and the hood (31) are in an inclined state after being installed.
3. The sand-gravel powder-removal grading construction process as claimed in claim 1, characterized in that: the machine-made sand pneumatic powder remover comprises: the sand-gravel-containing first cavity cover (1) is used for containing sand, a rotor capable of rotating to break up and remove powder from the sand is arranged on the first cavity cover (1), and a feed port (11) for sand and gravel to enter, an air outlet (12), an air inlet (13) and a discharge port (14) are formed in the first cavity cover (1);
the discharge port (14) is communicated with a grading screening unit (3) for grading and screening sand.
4. The sand-gravel powder-removal grading construction process as claimed in claim 3, characterized in that: the feed inlet (11) is obliquely arranged at one end of the first cavity cover (1).
5. The sand-gravel powder-removal grading construction process as claimed in claim 3, characterized in that: the air outlet (12) is composed of a pipeline communicated with the inside of the first cavity cover (1), and a pipeline connecting port is positioned on the air outlet (12).
6. The sand-gravel powder-removal grading construction process as claimed in claim 3, characterized in that: the air inlet (13) is communicated with a pipeline in the first cavity cover (1), the air inlet (13) is oppositely arranged on the opposite side of the axis of the rotor (2), and when the rotor (2) rotates, clean wind energy introduced into the air inlet (13) is uniformly mixed with dust and then quickly discharged.
7. The sand-gravel powder-removal grading construction process as claimed in claim 3, characterized in that: the classifying screen unit (3) comprises a hood (31), a plurality of guide classifying plates (32) are installed on a bottom plate of the hood (31) at intervals, the guide classifying plates (32) are close to the bottom plate of the hood (31) and are close to the screening holes (33) with the width gradually reduced from the rotor (2) to the far away end, and each screening hole (33) penetrates through the bottom plate of the hood (31) from the guide classifying plates (32).
8. The sand-gravel powder-removal grading construction process as claimed in claim 7, characterized in that: the flow guide grading plate (32) is arc-shaped, and the bottom of the arc-shaped rotor (2) and the top of the screening hole (33) are at the same height and on the same horizontal line.
9. The sand-gravel powder-removal grading construction process as claimed in claim 7 or 8, characterized in that: and a material receiving cover (34) is arranged on the bottom plate of the hood (31) corresponding to the lower part of the screening hole (33).
10. The sand-gravel powder-removal grading construction process as claimed in claim 3, characterized in that: and support legs (4) for stably supporting the upper part are fixedly arranged at the bottoms of the first cavity cover (1) and the hood (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174011.1A CN112958447B (en) | 2021-02-06 | 2021-02-06 | Sand and stone powder removal and classification construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110174011.1A CN112958447B (en) | 2021-02-06 | 2021-02-06 | Sand and stone powder removal and classification construction process |
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| Publication Number | Publication Date |
|---|---|
| CN112958447A CN112958447A (en) | 2021-06-15 |
| CN112958447B true CN112958447B (en) | 2022-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110174011.1A Active CN112958447B (en) | 2021-02-06 | 2021-02-06 | Sand and stone powder removal and classification construction process |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2544962A1 (en) * | 1975-10-08 | 1977-04-14 | Goergen Fritz Aurel | Classification and screening for comminuted rubbish - has tangential input air separation blast and spiral circulatory motion produced in material flow |
| CN2772639Y (en) * | 2005-03-22 | 2006-04-19 | 北京京城环保产业发展有限责任公司 | Plastic wind-power classifier |
| CN101318180A (en) * | 2008-07-22 | 2008-12-10 | 苏州宝化炭黑有限公司 | Hydrocarbon black powder removing method and device |
| CN103357577A (en) * | 2013-07-13 | 2013-10-23 | 浙江双金机械集团股份有限公司 | Machine-made sand wind power winnowing system and winnowing method |
| CN204564563U (en) * | 2015-01-09 | 2015-08-19 | 张文启 | A kind of sandstone separator |
| CN204673751U (en) * | 2015-05-15 | 2015-09-30 | 鸿伟木业（仁化）有限公司 | A kind of airflow pavement device |
| CN105107741A (en) * | 2015-09-17 | 2015-12-02 | 云南滇红集团股份有限公司 | Tea winnower |
| CN206240790U (en) * | 2016-10-25 | 2017-06-13 | 中国石油化工股份有限公司 | Grading plant |
-
2021
- 2021-02-06 CN CN202110174011.1A patent/CN112958447B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2544962A1 (en) * | 1975-10-08 | 1977-04-14 | Goergen Fritz Aurel | Classification and screening for comminuted rubbish - has tangential input air separation blast and spiral circulatory motion produced in material flow |
| CN2772639Y (en) * | 2005-03-22 | 2006-04-19 | 北京京城环保产业发展有限责任公司 | Plastic wind-power classifier |
| CN101318180A (en) * | 2008-07-22 | 2008-12-10 | 苏州宝化炭黑有限公司 | Hydrocarbon black powder removing method and device |
| CN103357577A (en) * | 2013-07-13 | 2013-10-23 | 浙江双金机械集团股份有限公司 | Machine-made sand wind power winnowing system and winnowing method |
| CN204564563U (en) * | 2015-01-09 | 2015-08-19 | 张文启 | A kind of sandstone separator |
| CN204673751U (en) * | 2015-05-15 | 2015-09-30 | 鸿伟木业（仁化）有限公司 | A kind of airflow pavement device |
| CN105107741A (en) * | 2015-09-17 | 2015-12-02 | 云南滇红集团股份有限公司 | Tea winnower |
| CN206240790U (en) * | 2016-10-25 | 2017-06-13 | 中国石油化工股份有限公司 | Grading plant |
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| CN112958447A (en) | 2021-06-15 |
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