CN117696205A - Sand and stone crushing and screening system - Google Patents
Sand and stone crushing and screening system Download PDFInfo
- Publication number
- CN117696205A CN117696205A CN202311721955.1A CN202311721955A CN117696205A CN 117696205 A CN117696205 A CN 117696205A CN 202311721955 A CN202311721955 A CN 202311721955A CN 117696205 A CN117696205 A CN 117696205A
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- CN
- China
- Prior art keywords
- sand
- crushing
- stone
- screening
- grade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000004575 stone Substances 0.000 title claims abstract description 65
- 239000004576 sand Substances 0.000 title claims abstract description 62
- 238000012216 screening Methods 0.000 title claims abstract description 61
- 239000000843 powder Substances 0.000 claims abstract description 23
- 239000002245 particle Substances 0.000 claims description 14
- 238000002560 therapeutic procedure Methods 0.000 claims description 3
- 238000007873 sieving Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011435 rock Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention provides a sand and stone crushing and screening system which comprises a sand powder bin, n secondary crushers and n screening machines, wherein the secondary crushers are provided with a feed inlet and a discharge outlet, each screening machine is provided with a feed inlet, a return inlet and a sand powder outlet, feeders are arranged between the discharge outlet of the ith secondary crusher and the feed inlet of the ith screening machine, between the return inlet of the ith screening machine and the feed inlet of the ith secondary crusher, a powder collecting machine is further arranged between the sand powder outlets of all screening machines and the sand powder bin, and the capacity of the ith secondary crusher is greater than that of the (i+1) th secondary crusher, wherein n and i are positive integers, and i=1, 2, … and n. By adopting the technical scheme of the invention, each secondary crusher and the corresponding sieving machine form a closed-loop crushing and sieving unit, and each crushing and sieving unit independently operates, so that each mechanical device can stably and continuously operate at the same time, each mechanical device fully plays own efficacy, and sand outlet efficiency is improved.
Description
Technical Field
The invention relates to the technical field of ultrafine crushing in sand production, in particular to a sand crushing and screening system.
Background
The sandstone aggregate is an important component for preparing concrete, and currently, the production process of the sandstone aggregate mainly comprises the procedures of crushing, screening, rod grinding and the like, and the early sandstone aggregate production process mainly depends on natural sandstone aggregate, but because the natural sandstone aggregate is not renewable, the collection of the natural sandstone aggregate is gradually exhausted, the technology for manually producing the sandstone aggregate is gradually and widely applied, and meanwhile, mechanical equipment such as a crusher, a screening machine and the like is promoted to be widely applied, and various types of mechanical equipment are generally adopted for combining in order to improve the productivity and the fine granularity of the sandstone aggregate so as to meet the productivity requirement of the sandstone aggregate.
For example, publication No.: patent document CN116510864A discloses a synchronous processing method and system for stone classification and crushing, and relates to the field of stone processing. The synchronous stone classifying and crushing treatment method includes the following steps: feeding the waste rocks subjected to primary dry separation into a vibrating screen for screening, returning the waste rocks on the screen through a belt, and crushing to form a closed circuit; carrying out a mineral recovery process on a belt from fine crushing to screening, and separating the fine crushed ores and waste rocks; the ore enters the original processing system, and the waste stone enters the building stone processing system, so that synchronous operation of ore feeding, stone screening and ore recycling is realized. The ore dressing production cost can be reduced. The stone processing is carried out, meanwhile, the tailing magnetic mineral recovery operation is added, the recovered magnetic mineral is returned to a dressing plant for regrinding and dressing, the recycling of non-renewable resources is enhanced, and the dust pollution on the ground surface of a mining area is reduced.
However, in the sand aggregate production system, various crushers, screening machines, rod mills and the like have the characteristics and have different application ranges, in order to improve the fine granularity of sand aggregates, a plurality of crushers are connected in series and cascaded under normal conditions, so that sand aggregates are further crushed at the front end after being subjected to a large-to-small crushing process, and the obtained sand aggregates are sometimes returned to the front end for further crushing, so that smaller fine granularity is obtained.
Disclosure of Invention
In order to solve the technical problems, the invention provides a sand crushing and screening system.
The invention is realized by the following technical scheme.
The invention provides a sand and stone crushing and screening system, which comprises a sand powder bin, n secondary crushers and n screening machines, wherein the secondary crushers are provided with a feed inlet and a discharge outlet, the screening machines are provided with a feed inlet, a return inlet and a sand powder outlet, feeders are arranged between the discharge outlet of the ith secondary crusher and the feed inlet of the ith screening machine, between the return inlet of the ith screening machine and the feed inlet of the ith secondary crusher, a powder collecting machine is further arranged between the sand powder outlets of all the screening machines and the sand powder bin, and the capacity of the ith secondary crusher is greater than that of the (i+1) th secondary crusher, wherein n and i are positive integers, and i=1, 2, … and n.
The number of the secondary crushers is two, wherein the first secondary crusher is a cone crusher, and the second secondary crusher is a vertical shaft crusher.
The sand and stone crushing and screening system further comprises n grade stone bins, each grade stone bin is numbered as j grade bins according to the stone particle size, j is a positive integer, j=1, 2, …, n, the ith screening machine is further provided with m grade stone outlets, m is a positive integer, m=n-i+1, each grade stone outlet is numbered as k grade outlets according to the stone particle size, k is a positive integer, k=i, i+1, …, n, and stone collecting machines are further arranged between the k grade outlets and the j grade bins of all screening machines, and j=k is achieved.
The quarrying machine is a belt conveyor.
The number of the grade stone bins is 3, wherein the grain size of stones stored in the first grade bin is 40-80 mm, the grain size of stones stored in the second grade bin is 20-40 mm, and the grain size of food therapy stored in the third grade bin is 5-20 mm.
The sand and stone crushing and screening system further comprises a desliming screen, the desliming screen is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the desliming screen and the feed inlet of each secondary crusher.
The sand and stone crushing and screening system further comprises a primary crusher, wherein the primary crusher is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the primary crusher and the feed inlet of the desliming screen.
The primary crusher is a jaw crusher.
The feeder is a belt conveyor.
The powder collecting machine is a belt conveyor.
The invention has the beneficial effects that: by adopting the technical scheme of the invention, each secondary crusher and the corresponding sieving machine form a closed-loop crushing and sieving unit, when sand and stone raw materials are respectively and simultaneously thrown into each crushing and sieving unit according to weight or volume, each crushing and sieving unit respectively and independently operates, and mechanical equipment in each crushing and sieving unit can be simultaneously started, so that each mechanical equipment can stably and continuously operate simultaneously, the invention is beneficial to enabling each mechanical equipment to fully exert self-efficiency, improving sand and stone discharging efficiency, and the corresponding mechanical equipment has different processing capacities in each crushing and sieving unit, but can enable sand and stone raw materials to be discharged after a shorter technological process, enable sand and stone aggregate with smaller particle size to be discharged as soon as possible, meet the requirement of using finished fine-grained sand and stone aggregate in construction sites, and in each crushing and sieving unit, sand and stone raw materials with larger particle size also need to be repeatedly crushed through repeated circulation for many times, thereby improving the fine granularity of the final finished sand and stone aggregate.
Drawings
Fig. 1 is a process flow diagram of the present invention.
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 above.
The process flow chart of the invention is shown in fig. 1:
the invention provides a sand and stone crushing and screening system which comprises a sand powder bin, n secondary crushers and n screening machines, wherein the secondary crushers are provided with a feed inlet and a discharge outlet, the screening machines are provided with a feed inlet, a return inlet and a sand powder outlet, feeders are arranged between the discharge outlet of the ith secondary crusher and the feed inlet of the ith screening machine, between the return inlet of the ith screening machine and the feed inlet of the ith secondary crusher, a powder collecting machine is further arranged between the sand powder outlets of all the screening machines and the sand powder bin, and the capacity of the ith secondary crusher is larger than that of the (i+1) th secondary crusher, wherein n and i are positive integers, and i=1, 2, … and n.
By adopting the technical scheme of the invention, each secondary crusher and the corresponding sieving machine form a closed-loop crushing and sieving unit, when sand and stone raw materials are respectively and simultaneously thrown into each crushing and sieving unit according to weight or volume, each crushing and sieving unit respectively and independently operates, and mechanical equipment in each crushing and sieving unit can be simultaneously started, so that each mechanical equipment can stably and continuously operate simultaneously, the invention is beneficial to enabling each mechanical equipment to fully exert self-efficiency, improving sand and stone discharging efficiency, and the corresponding mechanical equipment has different processing capacities in each crushing and sieving unit, but can enable sand and stone raw materials to be discharged after a shorter technological process, enable sand and stone aggregate with smaller particle size to be discharged as soon as possible, meet the requirement of using finished fine-grained sand and stone aggregate in construction sites, and in each crushing and sieving unit, sand and stone raw materials with larger particle size also need to be repeatedly crushed through repeated circulation for many times, thereby improving the fine granularity of the final finished sand and stone aggregate.
Specifically, the number of the secondary crushers is two, wherein the first secondary crusher is a cone crusher, and the second secondary crusher is a vertical shaft crusher. The cone crusher is generally applicable to crushing of stones with the particle size of more than 80mm, the vertical shaft crusher is applicable to crushing of stones with smaller particle size, crushing mechanical equipment with different capacity is scratched into different crushing and screening units, and some natural sand stone raw materials with smaller particle size can be rapidly crushed once and then rapidly discharged, so that emergency requirements are met.
In addition, the gravel crushing and screening system further comprises n stages of stone bins, each stage of stone bin is numbered as j stages of bins according to the stone particle size, j is a positive integer, j=1, 2, …, n, the ith screening machine is further provided with m stages of stone outlets, m is a positive integer, m=n-i+1, each stage of stone outlets are numbered as k stages of outlets according to the stone particle size, k is a positive integer, k=i, i+1, …, n, and a quarrying machine is further arranged between the k stages of outlets and the j stages of bins of all screening machines, and j=k is caused. The quarrying machine is a belt conveyor. The number of the grade stone bins is 3, wherein the grain size of stones stored in the first grade bin is 40-80 mm, the grain size of stones stored in the second grade bin is 20-40 mm, and the grain size of food therapy stored in the third grade bin is 5-20 mm. Thereby, the gravel aggregate with various particle size grades is respectively acquired through each quarrying machine so as to meet various application requirements.
In addition, the gravel crushing and screening system further comprises a desliming screen, the desliming screen is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the desliming screen and the feed inlet of each secondary crusher. The sand and stone crushing and screening system further comprises a primary crusher, wherein the primary crusher is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the primary crusher and the feed inlet of the desliming screen. The primary crusher is a jaw crusher. The feeder is a belt conveyor. The powder collecting machine is a belt conveyor. Jaw crushers are used for primary crushing of sand raw materials in some rocks of high hardness, poor crushability and high abrasion index, and are fed into respective crushing and screening units for simultaneous crushing and screening processes.
Claims (10)
1. A sand crushing and screening system, characterized in that: including sand powder storehouse, n secondary breaker and n screening machine, secondary breaker is equipped with feed inlet and discharge gate, the screening machine is equipped with feed inlet, return port and sand powder export, all is equipped with the batcher between the feed inlet of ith secondary breaker and the discharge gate of ith screening machine, between the return port of ith screening machine and the feed inlet of ith secondary breaker, still be provided with the powder collector between the sand powder export and the sand powder storehouse of all screening machines, the productivity of ith secondary breaker is greater than the productivity of i+1th secondary breaker, wherein, n, i are positive integer, and i=1, 2, …, n.
2. The sand crushing and screening system of claim 1, wherein: the number of the secondary crushers is two, wherein the first secondary crusher is a cone crusher, and the second secondary crusher is a vertical shaft crusher.
3. The sand crushing and screening system of claim 1, wherein: the sand and stone crushing and screening system further comprises n grade stone bins, each grade stone bin is numbered as j grade bins according to the stone particle size, j is a positive integer, j=1, 2, …, n, the ith screening machine is further provided with m grade stone outlets, m is a positive integer, m=n-i+1, each grade stone outlet is numbered as k grade outlets according to the stone particle size, k is a positive integer, k=i, i+1, …, n, and stone collecting machines are further arranged between the k grade outlets and the j grade bins of all screening machines, and j=k is achieved.
4. A sand crushing and screening system according to claim 3, wherein: the quarrying machine is a belt conveyor.
5. A sand crushing and screening system according to claim 3, wherein: the number of the grade stone bins is 3, wherein the grain size of stones stored in the first grade bin is 40-80 mm, the grain size of stones stored in the second grade bin is 20-40 mm, and the grain size of food therapy stored in the third grade bin is 5-20 mm.
6. The sand crushing and screening system of claim 1, wherein: the sand and stone crushing and screening system further comprises a desliming screen, the desliming screen is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the desliming screen and the feed inlet of each secondary crusher.
7. The sand crushing and screening system of claim 6 wherein: the sand and stone crushing and screening system further comprises a primary crusher, wherein the primary crusher is provided with a feed inlet and a discharge outlet, and the feeder is further arranged between the discharge outlet of the primary crusher and the feed inlet of the desliming screen.
8. The sand crushing and screening system of claim 7 wherein: the primary crusher is a jaw crusher.
9. A sand crushing and screening system according to claim 1 or 6 or 7, wherein: the feeder is a belt conveyor.
10. The sand crushing and screening system of claim 1, wherein: the powder collecting machine is a belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311721955.1A CN117696205A (en) | 2023-12-14 | 2023-12-14 | Sand and stone crushing and screening system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311721955.1A CN117696205A (en) | 2023-12-14 | 2023-12-14 | Sand and stone crushing and screening system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117696205A true CN117696205A (en) | 2024-03-15 |
Family
ID=90143801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311721955.1A Pending CN117696205A (en) | 2023-12-14 | 2023-12-14 | Sand and stone crushing and screening system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117696205A (en) |
-
2023
- 2023-12-14 CN CN202311721955.1A patent/CN117696205A/en active Pending
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