CN111940117B - A high-efficiency sand making building including a closed-circuit wind screening system - Google Patents
A high-efficiency sand making building including a closed-circuit wind screening system Download PDFInfo
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- CN111940117B CN111940117B CN202010909642.9A CN202010909642A CN111940117B CN 111940117 B CN111940117 B CN 111940117B CN 202010909642 A CN202010909642 A CN 202010909642A CN 111940117 B CN111940117 B CN 111940117B
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- sand
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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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Abstract
一种包括闭路循环风力筛分系统的高效制砂楼，包括设有多层平台的刚性楼体，还包括设置在刚性楼体内的料仓、提升机、冲击破、风选除尘装置、密封筛分装置和输送装置，提升机的上端通过输送装置与冲击破连接，冲击破下端的出料口与下层的风选除尘装置连接，风选除尘装置与下层的密封筛分装置密封连接，密封筛分装置上设有粗料端和细料端；核心设备为闭路循环风结构、风选除尘装置和密封筛分装置，闭路循环风结构能够有效地降低能耗和对环境的污染，并且提高分选的效果；分选除尘装置能够有利于调整机制砂细粒度的模数，降低后续筛分设备的载荷；密封筛分装置能够控制机制砂级配颗粒；能够减少制砂楼的高度，可减少整套制砂楼的振动量。
A high-efficiency sand-making building including a closed-circuit circulating wind screening system comprises a rigid building body with multi-layer platforms, and also comprises a silo, an elevator, an impact crusher, an air separation and dust removal device, a sealed screening device and a conveying device arranged in the rigid building body, the upper end of the elevator is connected to the impact crusher through the conveying device, the discharge port at the lower end of the impact crusher is connected to the air separation and dust removal device of the lower layer, the air separation and dust removal device is sealedly connected to the sealed screening device of the lower layer, and a coarse material end and a fine material end are provided on the sealed screening device; the core equipment is a closed-circuit circulating wind structure, an air separation and dust removal device and a sealed screening device, the closed-circuit circulating wind structure can effectively reduce energy consumption and pollution to the environment, and improve the sorting effect; the sorting and dust removal device can be beneficial to adjusting the modulus of the fine particle size of machine-made sand and reducing the load of subsequent screening equipment; the sealed screening device can control the grading particles of machine-made sand; the height of the sand-making building can be reduced, and the vibration of the entire sand-making building can be reduced.
Description
Technical Field
The invention relates to the technical field of sand 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 the economy in China, various large-scale building projects are gradually increased, the performance requirement on concrete is higher and higher, and the sand stone is used as the raw material with the highest proportion in the concrete, and the performance of the sand stone directly influences the workability, the mechanical property and the durability of the high-performance concrete. In the existing major engineering, almost all important structures require high-performance concrete, and the sand of the high-performance concrete can be ensured by adopting natural sand. Natural sand is used as non-renewable resources, the natural sand is exhausted, the exploitation of the 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 to replace the natural sand has become an important requirement and trend of social development.
The fine sand aggregate production system (i.e. fine machine-made sand production line) can produce the required fine sand or fine sand in proportion according to the requirements and the requirements of concrete mix proportion and mortar mix proportion, and the sand making process comprises the steps of conveying the stone to a sand making machine for breaking and making sand by a vibration feeder, dedusting and screening, wherein the part meeting the particle size requirement is finished sand, and the part not meeting the particle size requirement is re-fed into the sand making machine for breaking again. The machine-made sand has the advantages of uniform distribution of the degree of the machine-made sand, stable grading, capability of adjusting the particle size according to the aggregate requirement required by dry-mixed mortar, no mud content of the produced finished sand, adjustable and controllable powder content, partial fine powder which can replace partial cement, and the existing sand making building has the defects of more equipment, high power, large investment, large occupied area, strict requirement on raw materials, weak processing capacity, difficult control of the proportion of stone powder contained in the machine-made sand, high dust removing cost, and extremely large pollution to the environment due to dust generated in the sand making process and adverse to the treatment of the environment and the health of staff due to low screening efficiency and precision in the crushing process.
There is a need for an efficient sand making building that includes a closed-loop wind screening system to address this problem.
Disclosure of Invention
Aiming at the situation, the invention aims to overcome the defects of the prior art and provide a high-efficiency sand making building comprising a closed-loop circulating wind screening system, which effectively solves the problems.
The technical scheme includes that the multi-layer building comprises a rigid building body provided with a plurality of layers of platforms, and further comprises a storage bin, a lifting machine, an impact breaker, a winnowing dust collector, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the storage 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 breaker through the conveying device, a discharge hole at the lower end of the impact breaker is connected with the winnowing dust collector at the lower layer, the winnowing dust collector is in sealing connection with the sealing screening device at the lower layer, a coarse material end and a fine material end are arranged on the sealing screening device, the coarse material end is connected with the lower end of the lifting machine, and the fine material end is connected with a wet mixer arranged at the lower layer of the sealing screening device;
The wind separation dust collector comprises an air wind separation chamber, a circulating centrifugal fan, a sand and stone separator and a dynamic powder separation device, wherein the upper end of the air wind separation chamber is connected with a broken discharge hole, the left end of the wind separation chamber is connected with the circulating centrifugal fan, the right upper end of the wind separation chamber is connected with the sand and stone separator, the lower end of the sand and stone separator is connected with a fine material end on a sealing screening device through a conveying device, the dynamic powder separation device is arranged on the upper side of the sand and stone separator, a feed inlet of the dynamic powder separation device is connected with a discharge hole of the sand and stone separator, and an air outlet on the dynamic powder separation device is communicated with the circulating centrifugal fan through a pipeline, so that the air wind separation chamber, the circulating centrifugal fan, the sand and stone separator and the dynamic powder separation device form closed gas closed circulation, and the discharge hole at the lower end of the air wind separation chamber is connected with the feed inlet of the sealing screening device.
The invention has the beneficial effects that the core equipment is of a closed-circuit circulating air structure, the winnowing dust removing device and the sealing screening device, the closed-circuit circulating air structure can effectively reduce energy consumption and environmental pollution, improve the sorting effect, the sorting dust removing device is favorable for adjusting the modulus of fine granularity of machine-made sand, reducing the load of subsequent screening equipment, and the sealing screening device can control machine-made sand grading particles.
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 the embodiments of the present invention in further detail with reference to the drawings.
Examples:
The invention is given by figures 1 to 2, the invention comprises a rigid building body provided with a plurality of layers of platforms, and also comprises a feed bin 1, a lifting machine 2, an impact breaker 3, a winnowing dust collector, a sealing screening device and a conveying device which are arranged in the rigid building body, wherein the feed bin 1 is connected with the lower end of the lifting machine 2 through the conveying device, the feed bin 1 and the lifting machine 2 are respectively a buffer feed bin and a bucket type lifting machine, the impact breaker 3 is a vertical shaft impact breaker, the upper end of the lifting machine 2 is connected with the impact breaker 3 through the conveying device, namely, the lifting machine 2 lifts materials sent out from the feed bin 1 to the high position and sends the materials into the impact breaker 3 for crushing, a discharge hole at the lower end of the impact breaker 3 is connected with the winnowing dust collector at the lower layer, crushed stones are subjected to dust removal through the winnowing dust collector, the winnowing dust collector is in sealing connection with the sealing screening device at the lower layer, namely, the stones after dust removal are screened through the sealing screening device, a coarse material end and a fine material end are arranged on the sealing screening device, the coarse material end is connected with the lower end of the lifting machine 2, the fine material end is connected with a wet mixer 27 arranged at the lower layer of the sealing screening device, so that the sieved materials with the particle size is sent out from the high through the lower end of the lifting machine to the material through the lower end of the sealing dust collector for quality improvement, and the crushed stones are sent into the quality through the wet mixer 27;
The air separation dust collector comprises an air separation chamber 4, a circulating centrifugal fan 5, a sand and stone separator 6 and a dynamic powder separator 7, wherein the upper end of the air separation chamber 4 is connected with a discharge hole of the impact breaker 3, the left end of the air separation chamber 4 is connected with the circulating centrifugal fan 5, the right upper end of the air separation chamber 4 is connected with the sand and stone separator 6, stone entering the air separation chamber continuously falls under the action of the centrifugal fan, lighter stone and dust are sent into the sand and stone separator 6 by airflow, the lower end of the sand and stone separator 6 is connected with a fine material end on a sealing sieving device through a conveying device, the dynamic powder separator 7 is arranged on the upper side of the sand and stone separator 6, a feed hole of the dynamic powder separator 7 is connected with the discharge hole of the sand and stone separator 6, stone and dust entering the sand and stone separator 6 are separated in the sand and stone separator 6, the dust is sent into the sealing sieving device through the conveying device for sieving or collecting, and the dust enters the dynamic powder separator 7 for collecting, and the air outlet on the dynamic powder separator 7 is communicated with the circulating fan 5 through a pipeline, the air separator 5 is connected with the circulating fan 5 again through the sealing air separator 5, and the air separator 5 is prevented from being polluted by the sealing air separator 5, and the air separator is connected with the air inlet of the air separator 5.
Still include dust collector, dust collector is pulse bag collector 8, and pulse bag collector 8's wind gap is connected with broken 3 of strikeing, is connected with dust removal fan 9 on the pulse bag collector 8, can collect the dust that breaks up and make and fly upward owing to the breakage in the broken 3 of strikeing.
The lower end of the sand 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 for collecting powder.
The fine material end is also connected with a belt conveyor 11, a material collection pile is arranged at the end part of the belt conveyor 11, and the material collection pile is piled up and collected through the belt conveyor 11 under the condition that stones do not need to be humidified and stirred.
The conveying device comprises a quantitative belt feeder 12 connected with the lifting machine 2 and the storage bin 1, a fully-sealed belt feeder 13 connected with the lifting machine 2 and the impact breaker 3 and a screw conveyor 14 connected with the sand separator 6 and the fine material end on the sealed screening device.
The sealed screening plant include horizontal vibrating screen body 15, sealed lid 16 is installed to the upside of horizontal vibrating screen body 15, install first screen cloth 17 and second screen cloth 18 in the horizontal vibrating screen body 15, there is the empty slot between right-hand member and the feed inlet of first screen cloth 17, make the feed inlet on the horizontal vibrating screen body 15 be connected with second screen cloth 18, the left end of horizontal vibrating screen body 15 is equipped with discharge chamber 19, be equipped with in the discharge chamber 19 with first discharge gate 20 and the second discharge gate 21 with second screen cloth 18 intercommunication that first screen cloth 17 is connected, make the material that gets into in the horizontal vibrating screen body 15 sieve through first screen cloth 17 and second screen cloth 18 simultaneously respectively, the well material after sieving through first screen cloth 17 falls on second screen cloth 18 and carries out the secondary screening, coarse material after first screen cloth 17 sieves the raw materials that directly falls on second screen cloth 18 and the well material after once sieving carries out screening, make the fine material that wherein among them pass through second screen cloth 17 and make the fine material that falls through second screen cloth 18 and make the material that falls into the spiral sieve 22 and make the material collection hopper, the material collection hopper is still equipped with the end portion of collecting hopper 22 through the fine screen cloth, the material collection hopper is stretched into the end portion of collecting hopper, and the material collection hopper is equipped with the material.
The coarse fodder end be that one end connects lifting machine 2 lower extreme, the first pipeline 23 of first discharge gate 20 and second discharge gate 21 is connected to the other end, first pipeline 23 is sent to lifting machine 2 with coarse fodder and well material that first discharge gate 20 discharged and second discharge gate 21 discharged, makes it carry out processes such as broken again, fine fodder end include receiving hopper 22 and connect at second pipeline 24 and the third pipeline 25 of receiving hopper 22 lower extreme, second pipeline 24 is connected with band conveyer 11, third pipeline 25 is connected with mixing machine 27, still is equipped with the feed divider on second pipeline 24 and the third pipeline 25, can select second pipeline 24 or third pipeline 25 and receive hopper 22 intercommunication, in addition first pipeline 23, second pipeline 24 and third pipeline 25 combine sealed lid 16 can keep the leakproofness in the horizontal vibration sieve screen body 15.
A cyclone dust collector 26 is arranged between the air outlet on the dynamic powder selector 7 and the circulating centrifugal fan 5.
When the invention is used, the raw materials of the buffer bin are conveyed to the bucket elevator through the quantitative belt feeder, the raw materials are conveyed to the impact crusher through the bucket elevator for crushing, crushed stones are subjected to powder removal through the winnowing dust removal device, then the crushed stones enter the sealing screening device for screening, and the formed finished fine materials enter the wet mixer 27 or are accumulated and collected at the end.
The invention has the beneficial effects that the core equipment is of a closed-circuit circulating air structure, the winnowing dust removing device and the sealing screening device, the closed-circuit circulating air structure can effectively reduce energy consumption and environmental pollution, improve the sorting effect, the sorting dust removing device is favorable for adjusting the modulus of fine granularity of machine-made sand, reducing the load of subsequent screening equipment, and the sealing screening device can control machine-made sand grading particles.
The foregoing detailed description/examples are specific embodiments of the application and are intended to illustrate the inventive concept, but are not to be construed as limiting the application in any way. In addition to the embodiments described herein, those skilled in the art will be able to adopt other obvious solutions based on the disclosure of the claims and specification, including any obvious alterations and modifications to the embodiments described herein, all within the scope of the present application. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical aspects falling within the scope of the claims.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909642.9A CN111940117B (en) | 2020-09-02 | 2020-09-02 | A high-efficiency sand making building including a closed-circuit wind screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010909642.9A CN111940117B (en) | 2020-09-02 | 2020-09-02 | A high-efficiency sand making building including a closed-circuit wind screening system |
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| Publication Number | Publication Date |
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| CN111940117A CN111940117A (en) | 2020-11-17 |
| CN111940117B true CN111940117B (en) | 2025-02-07 |
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| CN202010909642.9A Active CN111940117B (en) | 2020-09-02 | 2020-09-02 | A high-efficiency sand making building including a closed-circuit wind screening system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN118594728B (en) * | 2024-05-30 | 2025-03-18 | 中材（天津）粉体技术装备有限公司 | A short-process, low-energy consumption system and method for preparing high-quality sandstone aggregate from hard rock |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103357481B (en) * | 2013-07-13 | 2015-06-17 | 浙江双金机械集团股份有限公司 | Dust-free machine-made natural sand manufacturing separation system and method |
| CN208912514U (en) * | 2018-09-27 | 2019-05-31 | 广州天地实业有限公司 | A kind of classifying screen |
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- 2020-09-02 CN CN202010909642.9A patent/CN111940117B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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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