CN111940117A - Efficient sand making building comprising closed-cycle wind power screening system - Google Patents
Efficient sand making building comprising closed-cycle wind power screening system Download PDFInfo
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- CN111940117A CN111940117A CN202010909642.9A CN202010909642A CN111940117A CN 111940117 A CN111940117 A CN 111940117A CN 202010909642 A CN202010909642 A CN 202010909642A CN 111940117 A CN111940117 A CN 111940117A
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- sand
- winnowing
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- sealing
- dust removing
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- 239000004576 sand Substances 0.000 title claims abstract description 54
- 238000012216 screening Methods 0.000 title claims abstract description 53
- 239000000428 dust Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000000463 material Substances 0.000 claims description 43
- 239000004575 stone Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 description 5
- 239000004567 concrete Substances 0.000 description 4
- 239000004574 high-performance concrete Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
A high-efficiency sand making building comprising a closed-loop circulating wind screening system comprises a rigid building body provided with a plurality of layers of platforms, and further comprises a storage bin, a hoisting machine, an impact crusher, a winnowing and dust removing device, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the upper end of the hoisting machine is connected with the impact crusher through the conveying device, a discharge port at the lower end of the impact crusher is connected with the winnowing and dust removing device at the lower layer, the winnowing and dust removing device is connected with the sealing screening device at the lower layer in a sealing manner, and the sealing screening device is provided with a coarse; the core equipment comprises a closed circulating air structure, a winnowing dust removal device and a sealing screening device, the closed circulating air structure can effectively reduce energy consumption and pollution to the environment, and the sorting effect is improved; the sorting and dust removing device can be beneficial to adjusting the modulus of the fine granularity of the machine-made sand and reducing the load of subsequent screening equipment; the sealing screening device can control the control sand grading particles; the height of the sand making building can be reduced, and the vibration quantity of the whole set of sand making building can be reduced.
Description
Technical Field
The invention relates to the technical field of sandstone aggregate production, in particular to a high-efficiency sand making building comprising a closed-loop circulating wind power screening system.
Background
With the continuous development of economy in China, various large-scale building projects are gradually increased, the performance requirements on concrete are higher and higher, and the performance of sandstone which is used as a raw material with the highest proportion in the concrete directly influences the workability, mechanical property and durability of high-performance concrete. In the existing major projects, almost all important structures require high-performance concrete, and the sand of the high-performance concrete must be natural sand to ensure the performance of the high-performance concrete. Natural sand as a non-renewable resource is exhausted, the exploitation of natural sand causes serious damage to the environment, a series of environmental protection problems are brought, and the preparation of concrete by adopting high-quality fine sand instead of natural sand becomes an important requirement and trend for social development.
A fine sand aggregate production system (namely a fine machine-made sand production line) can produce required fine sand or fine sand according to the proportion according to the requirements and requirements of the concrete proportion and the mortar proportion, and the sand making process comprises the following steps: the vibration feeder conveys stone materials to a sand making machine for crushing and making sand; and the part meeting the requirement of the particle size after dust removal and screening is finished sand, and the part not meeting the requirement of the particle size enters the sand making machine again to be crushed again. The degree distribution of the machine-made sand grains is uniform, the gradation is stable, and the grain size can be adjusted according to the aggregate requirement required by the dry-mixed mortar; the produced finished sand has no mud content, the powder content is adjustable and controllable, part of micro-fine powder can replace part of cement, and the prior sand making building has the following defects: the method has the advantages of more equipment, high power, large investment, large occupied area, strict requirements on raw materials, weak processing capacity, difficulty in controlling the proportion of stone powder contained in the machine-made sand and high dust removal cost; in addition, dust produced in the sand making process has great pollution to the environment, and is not beneficial to the management of the environment and the health of workers.
There is a need for an efficient sand producing building that includes a closed-loop wind screening system to address this problem.
Disclosure of Invention
In view of the above situation, in order to overcome the defects of the prior art, the invention aims to provide an efficient sand making building comprising a closed-loop wind power screening system, which effectively solves the problems.
The technical scheme for solving the problem is that the building comprises a rigid building body provided with a plurality of layers of platforms, and further comprises a bin, a lifting machine, an impact breaking device, a winnowing and dust removing device, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the bin is connected with the lower end of the lifting machine through the conveying device, the upper end of the lifting machine is connected with the impact breaking device through the conveying device, a discharge port at the lower end of the impact breaking device is connected with the winnowing and dust removing device at the lower layer, the winnowing and dust removing device is connected with the sealing screening device at the lower layer in a sealing manner, a coarse material end and a fine material end are arranged on the sealing screening device, the coarse material end is connected with the;
the winnowing dust removal device comprises an air winnowing chamber, a circulating centrifugal fan, a sand-stone separator and a dynamic powder selector, wherein the upper end of the air winnowing chamber is connected with an impact broken discharge port, the left end of the winnowing chamber is connected with the circulating centrifugal fan, the upper right end of the winnowing chamber is connected with the sand-stone separator, the lower end of the sand-stone separator is connected with a fine material end on the sealed screening device through a conveying device, the dynamic powder selector is arranged on the upper side of the sand-stone separator, a feed port of the dynamic powder selector is connected with a discharge port of the sand-stone separator, and an air outlet on the dynamic powder selector is communicated with the circulating centrifugal fan through a pipeline, so that the air winnowing chamber, the circulating centrifugal fan, the sand-stone separator and the dynamic powder selector form closed gas circulation, and a discharge port at the lower end of.
The invention has the beneficial effects that: the core equipment of the invention is a closed-loop circulating air structure, a winnowing dust removal device and a sealing screening device, the closed-loop circulating air structure can effectively reduce energy consumption and environmental pollution, and improve the sorting effect; the sorting and dust removing device can be beneficial to adjusting the modulus of the fine granularity of the machine-made sand and reducing the load of subsequent screening equipment; the sealing screening device can control the control sand grading particles; the invention occupies less space than the equipment adopted in the original system, can reduce the height of the sand making building, and in addition, the vibration quantity of the whole sand making building can be reduced by placing the sealing and screening device at a low layer, the dynamic load is reduced, the stability of normal work is provided for the equipment, the content of fine sand can be adjusted, and the rationality of the machine-made sand grading can be realized.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the horizontal vibration screen of the present invention.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Example (b):
the invention is shown by figures 1-2, the invention comprises a rigid building body with a plurality of layers of platforms, and also comprises a storage bin 1, a lifting machine 2, an impact crusher 3, a winnowing and dust removing device, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the storage bin 1 is connected with the lower end of the lifting machine 2 through the conveying device, the storage bin 1 and the lifting machine 2 are respectively a buffer storage bin and a bucket type lifting machine, the impact crusher 3 is a vertical shaft type crusher, the upper end of the lifting machine 2 is connected with the impact crusher 3 through the conveying device, namely, the lifting machine 2 lifts the materials sent out from the storage bin 1 to a high position and sends the materials into the impact crusher 3 for crushing, a discharge port at the lower end of the impact crusher 3 is connected with the winnowing and dust removing device at the lower layer, the crushed stones are subjected to dust removal through the winnowing and dust removing device, the sealing and screening device is provided with a coarse material end and a fine material end, the coarse material end is connected with the lower end of the elevator 2, the fine material end is connected with the wet mixing machine 27 arranged at the lower layer of the sealing and screening device, so that screened materials with overlarge particle sizes are sent into the lower end of the elevator 2 through the coarse material end to be crushed again, screened stones with qualified particle sizes are sent into the wet mixing machine 27 through the fine material end to be humidified and dedusted, and the quality of the stones is improved;
the winnowing dust removal device comprises an air winnowing chamber 4, a circulating centrifugal fan 5, a sand-stone separator 6 and a dynamic powder selector 7, wherein the upper end of the air winnowing chamber 4 is connected with a discharge port of the impact crusher 3, the left end of the air winnowing chamber 4 is connected with the circulating centrifugal fan 5, the right upper end of the air winnowing chamber 4 is connected with the sand-stone separator 6, heavy stones continuously fall down under the action of the centrifugal fan, light stones and dust are conveyed into the sand-stone separator 6 by air flow, the lower end of the sand-stone separator 6 is connected with a fine material end on the sealed screening device by a conveying device, the dynamic powder selector 7 is arranged on the upper side of the sand-stone separator 6, a feed port of the dynamic powder selector 7 is connected with a discharge port of the sand-stone separator 6, the stones and dust which enter the sand-stone separator 6 are separated in the sand-stone separator 6, the stones are conveyed into the sealed screening device by the conveying device for screening, the dust enters the dynamic powder concentrator to be collected, an air outlet on the dynamic powder concentrator 7 is communicated with the circulating centrifugal fan 5 through a pipeline, and airflow after the dust is collected by the dynamic powder concentrator 7 enters the circulating centrifugal fan 5 again, so that the air winnowing chamber 4, the circulating centrifugal fan 5, the sand-stone separator 6 and the dynamic powder concentrator 7 form closed gas circulation, the consumption of the circulating centrifugal fan 5 can be effectively reduced, the air pollution is avoided, and a discharge port at the lower end of the air winnowing chamber 4 is connected with a feed port of the sealed screening device.
The dust collection device is a pulse bag type dust collector 8, an air port of the pulse bag type dust collector 8 is connected with the impact crusher 3, and the pulse bag type dust collector 8 is connected with a dust collection fan 9 which can collect dust which is produced and flies due to crushing in the impact crusher 3.
The lower end of the sand-stone separator 6 is also connected with a chain conveyor 10, the chain conveyor 10 is connected with a powder collecting device, and the powder collecting device can be a collecting bin, a collecting hopper or a collecting box and is used for collecting powder.
The thin material end still be connected with band conveyer 11, band conveyer 11's tip is equipped with the material and collects the heap, does not need to carry out under the condition of humidification stirring to the building stones, piles up through band conveyer 11 and collects.
The conveying device comprises a quantitative belt feeder 12 connected with a lifter 2 and a storage bin 1, a fully-sealed belt conveyor 13 connected with the lifter 2 and an impact crusher 3, and a spiral conveyor 14 connected with a sand separator 6 and a fine material end on a sealed screening device.
The sealed screening device comprises a horizontal vibrating screen body 15, a sealing cover 16 is installed on the upper side of the horizontal vibrating screen body 15, a first screen 17 and a second screen 18 are installed in the horizontal vibrating screen body 15, an empty groove is formed between the right end of the first screen 17 and a feeding hole, the feeding hole in the horizontal vibrating screen body 15 is connected with the second screen 18, a discharging chamber 19 is arranged at the left end of the horizontal vibrating screen body 15, a first discharging hole 20 connected with the first screen 17 and a second discharging hole 21 communicated with the second screen 18 are formed in the discharging chamber 19, materials entering the horizontal vibrating screen body 15 are simultaneously screened through the first screen 17 and the second screen 18 respectively, medium materials screened through the first screen 17 fall on the second screen 18 for secondary screening, coarse materials screened through the first screen 17 are discharged through the first discharging hole 20, and the second screen 18 screens raw materials falling on the second screen 18 and medium materials screened through the primary screening And the fine materials in the horizontal vibrating screen body 15 fall through the second screen 18 and are discharged, the residual coarse materials and the residual medium materials are discharged through the second discharge hole 21, the receiving hopper 22 is further arranged at the lower end of the horizontal vibrating screen body 15 and can collect the fine materials, and the end part of the spiral conveyor 14 extends into the receiving hopper 22 so that the fine materials separated from sand and stones enter the receiving hopper 22 to be collected.
The coarse material end is a first pipeline 23 with one end connected with the lower end of the elevator 2 and the other end connected with the first discharge port 20 and the second discharge port 21, the first pipeline 23 sends the coarse material discharged from the first discharge port 20 and the coarse material and the medium material discharged from the second discharge port 21 to the elevator 2, the elevator 2 is crushed again, the fine material end comprises a receiving hopper 22, a second pipeline 24 and a third pipeline 25 connected to the lower end of the receiving hopper 22, the second pipeline 24 is connected with the belt conveyor 11, the third pipeline 25 is connected with the wet mixing machine 27, the second pipeline 24 and the third pipeline 25 are further provided with material distributing valves, the second pipeline 24 or the third pipeline 25 can be selected to be communicated with the receiving hopper 22, and in addition, the first pipeline 23, the second pipeline 24 and the third pipeline 25 are combined with a sealing cover 16, and the sealing performance in the horizontal vibrating screen body 15 can be maintained.
A cyclone dust collector 26 is also arranged between the air outlet of the dynamic powder selector 7 and the circulating centrifugal fan 5.
When the invention is used, the raw material of the buffer bin is conveyed to the bucket elevator through the quantitative belt conveyor feeder, the raw material is conveyed to the impact crusher through the bucket elevator for crushing, the crushed stone is subjected to powder removal through the winnowing and dust removing device and then enters the sealed screening device for screening, and the formed finished fine material enters the wet mixing machine 27 or is accumulated and collected at the utmost.
The invention has the beneficial effects that: the core equipment of the invention is a closed-loop circulating air structure, a winnowing dust removal device and a sealing screening device, the closed-loop circulating air structure can effectively reduce energy consumption and environmental pollution, and improve the sorting effect; the sorting and dust removing device can be beneficial to adjusting the modulus of the fine granularity of the machine-made sand and reducing the load of subsequent screening equipment; the sealing screening device can control the control sand grading particles; the invention occupies less space than the equipment adopted in the original system, can reduce the height of the sand making building, and in addition, the vibration quantity of the whole sand making building can be reduced by placing the sealing and screening device at a low layer, the dynamic load is reduced, the stability of normal work is provided for the equipment, the content of fine sand can be adjusted, and the rationality of the machine-made sand grading can be realized.
The foregoing detailed description/examples, which are specific embodiments of the present invention and are intended to be illustrative of the concepts of the present invention, are illustrative and exemplary and are not to be construed as limiting the embodiments of the present invention and the scope of the invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include those which make any obvious replacement or modification of the embodiments described herein, and all of which are within the scope of the present invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical aspects falling within the scope of the claims.
Claims (8)
1. The high-efficiency sand making building comprises a closed-loop circulating wind power screening system, and comprises a rigid building body provided with a plurality of layers of platforms, and is characterized by further comprising a storage bin (1), a hoisting machine (2), an impact breaker (3), a winnowing and dust removing device, a sealing screening device and a conveying device, wherein the storage bin (1) is arranged in the rigid building body and is connected with the lower end of the hoisting machine (2), the upper end of the hoisting machine (2) is connected with the impact breaker (3) through the conveying device, a discharge port at the lower end of the impact breaker (3) is connected with the winnowing and dust removing device at the lower layer, the winnowing and dust removing device is in sealing connection with the sealing screening device at the lower layer, the sealing screening device is provided with a coarse material end and a fine material end, the coarse material end is connected with the lower end of the hoisting machine (2), and the fine material; the winnowing and dust removing device comprises an air winnowing chamber (4), a circulating centrifugal fan (5), a sand-stone separator (6) and a dynamic powder selector (7), wherein the upper end of the air winnowing chamber (4) is connected with a discharge hole of the impact breaking device (3), the left end of the air winnowing chamber (4) is connected with the circulating centrifugal fan (5), the upper right end of the air winnowing chamber (4) is connected with the sand-stone separator (6), the lower end of the sand-stone separator (6) is connected with a fine material end on the sealing screening device through a conveying device, the dynamic powder selector (7) is arranged on the upper side of the sand-stone separator (6), a feed inlet of the dynamic powder selector (7) is connected with a discharge hole of the sand-stone separator (6), an air outlet on the dynamic powder selector (7) is communicated with the circulating centrifugal fan (5) through a pipeline, so that the air winnowing chamber (4), the circulating centrifugal fan (5), the sand-stone separator (6) and the dynamic powder selector (7) form a closed gas, the discharge hole at the lower end of the air separation chamber (4) is connected with the feed inlet of the sealed screening device.
2. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, further comprising a dust removing device, wherein the dust removing device is a pulse bag type dust remover (8), an air port of the pulse bag type dust remover (8) is connected with the impact crusher (3), and a dust removing fan (9) is connected to the pulse bag type dust remover (8).
3. A high efficiency sand producing building including a closed loop wind screening system as claimed in claim 1 wherein the lower end of said sand separator (6) is further connected to a chain conveyor (10) and the chain conveyor (10) is connected to a fines collection means.
4. A high efficiency sand producing building including a closed loop wind screening system as claimed in claim 1 wherein said fines end is further connected to a belt conveyor (11) and the end of the belt conveyor (11) is provided with a material collection pile.
5. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein the conveying device comprises a quantitative belt feeder (12) connecting the elevator (2) and the storage bin (1), a fully-sealed belt conveyor (13) connecting the elevator (2) and the impact crusher (3), and a screw conveyor (14) connecting the sand separator (6) and the fine material end of the sealed screening device.
6. The high-efficiency sand making building comprising the closed-loop circulating wind power screening system according to claim 1, wherein the sealing screening device comprises a horizontal vibrating screen body (15), a sealing cover (16) is installed on the upper side of the horizontal vibrating screen body (15), a first screen (17) and a second screen (18) are installed in the horizontal vibrating screen body (15), an empty groove is formed between the right end of the first screen (17) and the feeding hole, a discharging chamber (19) is arranged at the left end of the horizontal vibrating screen body (15), a first discharging hole (20) connected with the first screen (17) and a second discharging hole (21) communicated with the second screen (18) are formed in the discharging chamber (19), and a receiving hopper (22) is further arranged at the lower end of the horizontal vibrating screen body (15).
7. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein the coarse material end is a first pipeline (23) with one end connected with the lower end of the hoister (2) and the other end connected with a first discharge port (20) and a second discharge port (21), the fine material end comprises a receiving hopper (22) and a second pipeline (24) and a third pipeline (25) connected with the lower end of the receiving hopper (22), the second pipeline (24) is connected with the belt conveyor (11), and the third pipeline (25) is connected with the wet stirring machine (27).
8. The high-efficiency sand making building comprising the closed-loop wind power screening system according to claim 1, wherein a cyclone dust collector (26) is further arranged between the air outlet of the dynamic powder selector (7) and the circulating centrifugal fan (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909642.9A CN111940117A (en) | 2020-09-02 | 2020-09-02 | Efficient sand making building comprising closed-cycle wind power screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909642.9A CN111940117A (en) | 2020-09-02 | 2020-09-02 | Efficient sand making building comprising closed-cycle wind power screening system |
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| CN111940117A true CN111940117A (en) | 2020-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010909642.9A Pending CN111940117A (en) | 2020-09-02 | 2020-09-02 | Efficient sand making building comprising closed-cycle wind power screening system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113751325A (en) * | 2021-09-14 | 2021-12-07 | 韶关核力重工机械有限公司 | Environment-friendly efficient physical concentrator and dual-concentration method |
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| CN104556762A (en) * | 2014-12-18 | 2015-04-29 | 北京金隅水泥节能科技有限公司 | Tower-type machine-made sand preparation and grading adjustment system |
| CN108355968A (en) * | 2018-04-24 | 2018-08-03 | 南京凯盛国际工程有限公司 | A kind of dry-method sand manufacturing system and method |
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| CN212383861U (en) * | 2020-09-02 | 2021-01-22 | 河南中誉鼎力智能装备有限公司 | Efficient sand making building comprising closed-cycle wind power screening system |
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2020
- 2020-09-02 CN CN202010909642.9A patent/CN111940117A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2015007037A1 (en) * | 2013-07-13 | 2015-01-22 | 浙江双金机械集团股份有限公司 | System and method for manufacturing and separating dust-free manufactured natural sand |
| CN104556762A (en) * | 2014-12-18 | 2015-04-29 | 北京金隅水泥节能科技有限公司 | Tower-type machine-made sand preparation and grading adjustment system |
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