CN115180855B - Method for producing sand by using heterogeneous sandstone - Google Patents
Method for producing sand by using heterogeneous sandstone Download PDFInfo
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- CN115180855B CN115180855B CN202210612397.4A CN202210612397A CN115180855B CN 115180855 B CN115180855 B CN 115180855B CN 202210612397 A CN202210612397 A CN 202210612397A CN 115180855 B CN115180855 B CN 115180855B
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- 239000004576 sand Substances 0.000 title claims abstract description 133
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims abstract description 30
- 238000012216 screening Methods 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000004064 recycling Methods 0.000 claims abstract description 13
- 239000004575 stone Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 6
- 238000005406 washing Methods 0.000 claims abstract description 6
- 238000011084 recovery Methods 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 12
- 239000011435 rock Substances 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005422 blasting Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- SWGJCIMEBVHMTA-UHFFFAOYSA-K trisodium;6-oxido-4-sulfo-5-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-2-sulfonate Chemical compound [Na+].[Na+].[Na+].C1=CC=C2C(N=NC3=C4C(=CC(=CC4=CC=C3O)S([O-])(=O)=O)S([O-])(=O)=O)=CC=C(S([O-])(=O)=O)C2=C1 SWGJCIMEBVHMTA-UHFFFAOYSA-K 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 2
- 239000000203 mixture Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 6
- 241000282326 Felis catus Species 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000018044 dehydration Effects 0.000 description 3
- 238000006297 dehydration reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 101001018064 Homo sapiens Lysosomal-trafficking regulator Proteins 0.000 description 1
- 102100033472 Lysosomal-trafficking regulator Human genes 0.000 description 1
- 235000010703 Modiola caroliniana Nutrition 0.000 description 1
- 244000038561 Modiola caroliniana Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
-
- 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
- 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
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
Abstract
A method of producing sand from heterogeneous sandstone, comprising the steps of: step 1, a primary crushing process; step 2, a medium crushing process; and step 3: fine crushing process; and 4, step 4: a screening process; and 5: adding water and finely crushing; step 6: washing, dehydrating and blending; the wet production process is adopted in the steps, so that dust in the production process can be reduced, mud and the like mixed in stone materials can be washed, the washed fine sand is recycled by using a fine sand recycling machine and mixed with a product six, but the recycled fine sand has strong water retention property and is still packed in a lump after being dehydrated on the fine sand recycling machine, so that a crushing device is arranged at a discharge port of the fine sand recycling machine, and a dewatering screen is arranged after the fine sand and the coarse sand are mixed in order to uniformly mix the recycled fine sand and the coarse sand; the sand produced by the method can be directly transported to a mixing system for producing concrete without manual intervention or equipment intervention, so that the occupation and consumption of personnel and equipment are reduced, and the automation of the whole system is realized.
Description
Technical Field
The invention belongs to the technical field of building sand screening devices or equipment, and particularly relates to a method for producing sand by using heterogeneous sandstone.
Background
Sand is an important constituent of construction concrete materials. The machine-made sand is formed by crushing stone powder in a screening system, and has two processes of dry production and wet production. The material source of the stone field is distributed unevenly, the lithology is mainly miscellaneous sandstone and mudstone, the mudstone is in a interbed shape, the mudstone content is relatively large, the bedding joint develops, the rock body is broken, the rock body is mainly from strongly-weakly-weathered upper zone rock body, and the rock body is locally weakly-weathered lower zone rock body. The sandstone has the phenomena of 'sand formation', tectonic development, obvious interlayer squeezing and crumpling phenomena and rock mass breakage, and adopts a wet production process. The screening system for wet production mainly comprises a vibrating feeder, a coarse crushing jaw crusher, a middle crushing cone crusher, a fine crushing cone crusher, a sand making machine, a circular vibrating screen, a sand dehydration linear vibrating screen, a fine sand recovery system, a rubber belt machine, a finished aggregate bin and the like; washing crushed stone with water in the process of producing sand, washing fine sand, mud, fine powder and the like in the stone, then recovering and dehydrating the fine sand collected in a fine sand pool by using a fine sand recovery system, and uniformly stirring the fine sand and coarse sand to prepare qualified sand.
In the existing wet production process of a screening system, due to the fact that raw materials are strong in water retention, large in mud content, low in rock hardness, large in viscosity and the like, after dehydration is carried out on a fine sand recovery device, the water content of sand is still large, the fine sand recovered from a machine outlet is flaky or agglomerated, and after the fine sand is mixed with coarse sand, a powder wrapping phenomenon exists, so that the local fine sand content is high, indexes such as the stone powder content, the fineness modulus and the like are large in fluctuation, the sand quality is unstable, equipment such as a crusher is fast in abrasion, the fault frequency is high, the maintenance time is long, the stone powder content of the sand is high, the water content is large, the efficiency is low, the system operation control difficulty is large, the economic investment is high, and the quality is unstable. In order to solve the problem, mechanical equipment or personnel intervention is needed, the equipment is maintained at regular intervals, equipment parts are replaced at high frequency, and sand recovered by the fine sand recovery machine is repeatedly stirred, so that sand balls are loosened, the equipment and personnel are increased, the production efficiency is reduced, and the economic benefit is influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a method for producing sand by using heterogeneous sandstone, which has the advantages of simple flow, no need of manual or equipment intervention, reduction of occupation and consumption of personnel and equipment, and realization of automation of a complete set of system.
The technical scheme for solving the technical problems is as follows: a method of producing sand from heterogeneous sandstone, comprising the steps of:
step 1, a primary crushing process: sending the raw material with the particle size of more than 100mm after blasting into a jaw crusher for coarse crushing to obtain a product I;
and step 3: fine crushing process: the second product is sent into a fine crushing cone by a vibrating feeder and a belt conveyor to be finely crushed to obtain a third product;
and 4, step 4: a screening process: conveying the product III into a sieving machine by a belt conveyor for sieving to obtain a product IV with the particle size of 5-20 mm;
and 5: adding water and finely crushing: conveying the product IV to a vertical crusher by a belt conveyor for fine crushing, wherein a water feeding pipeline is required to be arranged on a crushing cavity of the vertical crusher because the product IV has large mud content and certain cohesiveness, and a small amount of water is added into the crushing cavity through the water feeding pipeline to prevent a rotor from being locked; conveying the finely crushed product IV onto a rubber belt conveyor to a vibrating screen for three-stage screening to obtain a product V with the particle size of less than 5 mm;
step 6: washing, dehydrating and blending: and a product V enters a spiral sand washer through a rubber belt conveyor to be cleaned to obtain a product VI, the cleaned product VI enters a first-stage dewatering screen to be dewatered, fine powder output by the spiral sand washer is introduced into a fine sand recovery tank to be recovered, wherein the fine sand recovered from the fine sand recovery tank needs to be introduced into the first-stage dewatering screen by a fine sand recovery machine to be mixed in proportion due to low stone powder content, but the recovered fine sand has strong water retention property, and is still packed in a lump after being dewatered on the fine sand recovery machine, so a crushing device is arranged below a discharge port of the fine sand recovery machine, the crushed sand lump is uniformly mixed with the dewatered product VI on the dewatering screen to form a product VII, and the seven product VII is conveyed to a finished product sand silo by a belt conveyor to be stockpiled.
The raw material of the invention is mauve sandstone, and the stock ground is a heterogeneous stock ground in which soft rocks such as mudstone and the like are mixed.
The steps 1-4 of the invention adopt a wet production process, namely, a spraying system is additionally arranged at the discharge end of the belt conveyor in the process.
In the step 2 and the step 3 of the invention, an iron removing device is additionally arranged on the belt conveyor.
The crushing device of the invention is as follows: the fine sand recycling machine is characterized in that a hopper is arranged below a discharge port of the fine sand recycling machine, the hopper is located right above the belt conveyor, one end of the screen is horizontally arranged on the inner side wall of the hopper, the upper portion of the other end of the screen is connected with the machine body of the fine sand recycling machine through at least two first springs, the lower portion of the other end of the screen is connected with the inner side wall of the hopper through at least two second springs, and a protective net is arranged between the hopper and the discharge port of the fine sand recycling machine.
A ladder stand structure is arranged at one end, close to the hopper, of the fine sand recycling machine body.
An overhaul platform is arranged between a protective net and a hopper and connected with a ladder stand structure.
One end of the screen is hinged on the inner side wall of the hopper.
One end of the screen is arranged on the inner side wall of the hopper through a hinge.
Compared with the prior art, the invention has the following advantages:
1. the invention adopts a wet production process, and the rotary spray head is arranged at the discharge end of the belt conveyor, so that the dust in the production process can be reduced, and mud and the like mixed in stone materials can be washed.
2. The invention uses a fine sand recovery machine to recover washed fine sand and mix the washed fine sand with a product six, but the recovered fine sand has strong water retention property, and is still agglomerated after being dehydrated on the fine sand recovery machine, so a crushing device is arranged at a discharge port of the fine sand recovery machine, one end of a screen is hinged on the inner side wall of a hopper, a certain rotation angle between the screen and the hopper is ensured, the other end of the screen is fixed on a machine body and the hopper through a spring, the vibration of the fine sand recovery machine is ensured to be transmitted to the screen, power is provided for the screen, sand agglomerates or flaky fine sand produced by the fine sand recovery machine are processed through the vibration of the screen, the flaky or agglomerated fine sand vibrates on the screen until the flaky or agglomerated fine sand is loosened and then enters a belt conveyor through the screen, the fine sand recovered by the device does not need to be stirred by using equipment or manual intervention, after the loosened fine sand and other semi-finished sand are mixed, the grading of the sand is continuous, the stone powder content and the fineness modulus are stable, and the quality reaches the standard.
3. In order to uniformly blend the recovered fine sand and coarse sand, a dewatering screen is arranged after the fine sand and the coarse sand are mixed, so that the sand can be continuously dewatered during the movement process, and the blended sand can be uniformly mixed.
4. The sand produced by the invention can be directly transported to a mixing system for producing concrete without manual or equipment intervention, so that the occupation and consumption of personnel and equipment are reduced, and the automation of the whole system is realized.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Fig. 2 is a schematic structural view of the fine sand reclaimer of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is a sectional view of fig. 2.
In the figure: 1. a belt conveyor; 2. a hopper; 3. a second spring; 4. screening a screen; 5. a second spring; 6. a protective net; 7. a fine sand reclaimer; 8. a ladder climbing structure; 9. overhauling the platform; 10. and (7) a hinge.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and examples, but the present invention is not limited to these examples.
Example 1
In fig. 1, the invention relates to a method for producing sand from heterogeneous sandstone, comprising the following steps:
step 1, a primary crushing process: sending the raw material with the particle size of more than 100mm after blasting into a jaw crusher for coarse crushing to obtain a product I; the raw materials are purple red sandstone, the stock ground is a heterogeneous stock ground, soft rocks such as mudstone and the like are mixed, and the rocks have strong water retention and certain viscosity.
and step 3: fine crushing process: the second product is sent into a fine crushing conical crusher by a vibrating feeder and a belt conveyor to be finely crushed to obtain a third product;
and 4, step 4: a screening process: conveying the product III into a sieving machine by a belt conveyor for sieving to obtain a product IV with the particle size of 5-20 mm;
and 5: a water adding fine crushing process: conveying the product IV to a vertical crusher by a belt conveyor for fine crushing, wherein a water feeding pipeline is required to be arranged on a crushing cavity of the vertical crusher because the product IV has large mud content and certain cohesiveness, and a small amount of water is added into the crushing cavity through the water feeding pipeline to prevent a rotor from being locked; conveying the finely-crushed product IV to a vibrating screen on a belt conveyor for three-stage screening to obtain a product V with the particle size of less than 5 mm;
step 6: washing, dehydrating and blending: and a product V enters a spiral sand washer through a rubber belt conveyor to be cleaned to obtain a product VI, the cleaned product VI enters a first-stage dewatering screen to be dewatered, fine powder output by the spiral sand washer is introduced into a fine sand recovery tank to be recovered, wherein the fine sand recovered from the fine sand recovery tank needs to be introduced into the first-stage dewatering screen by a fine sand recovery machine to be mixed in proportion due to low stone powder content, but the recovered fine sand has strong water retention property, and is still packed in a lump after being dewatered on the fine sand recovery machine, so a crushing device is arranged below a discharge port of the fine sand recovery machine, the crushed sand lump is uniformly mixed with the dewatered product VI on the dewatering screen to form a product VII, and the seven product VII is conveyed to a finished product sand silo by a belt conveyor to be stockpiled.
The sludge content of the product I, the product II and the product III obtained by crushing in the steps 1-4 is large, so a wet production process is adopted, namely, a spraying system is additionally arranged at the discharge end of the belt conveyor in the process. And 2, additionally arranging an iron removal device on the belt conveyor in the step 3.
The breaker of this embodiment is by belt feeder 1, hopper 2, the second spring 3, screen cloth 4, the second spring 5, the protection network 6, machine 7 is retrieved to fine sand, cat ladder structure 8, overhaul platform 9, hinge 10 connects and constitutes, install hopper 2 through screw thread fastening connecting piece fixed connection in the discharge gate below of machine 7 is retrieved to fine sand, hopper 2 is located belt feeder 1 directly over, hopper 2 is upper and lower open-ended toper structure, 2 upper portion feed inlets length of hopper and 7 discharge gates phase-matches are retrieved to fine sand, the fine sand of machine 7 production is retrieved to fine sand is whole to enter into in the hopper 2. The one end level of screen cloth 4 articulates on the inside wall of hopper 2, and hinge 10 is passed through to this embodiment screen cloth 4's one end and installs on the inside wall of hopper 2 for screen cloth 4 has certain turned angle relative to hopper 2, guarantees that the vibrations of fine sand recovery machine 7 drive screen cloth vibration, and the installation quantity of hinge 10 is confirmed according to screen cloth 4's length. The upper part of the other end of the screen 4 is connected with the machine body of the fine sand reclaimer 7 through at least two first springs 5, the lower part of the other end of the screen 4 is connected with the inner side wall of the hopper 2 through at least two second springs 3, fine sand clusters or flaky fine sand reclaimed by the fine sand reclaimer 7 fall onto the screen 4 of the automatic screening device from the discharge port, a part of the fine sand clusters collide and loosen with the screen 4 under the action of gravity, the vibration of the fine sand reclaimer 7 is transmitted to the screen 4 through the first springs 5 and the second springs 3 to drive the screen 4 to vibrate, so that the other part of the sand clusters or flaky fine sand clusters are loosened and reach the belt conveyor 1 through the screen 4, the first springs 5 and the second springs 3 play a role in transmitting power on one hand and play a role in damping and limiting on the other hand to prevent the screen 4 from vibrating and displacing too much, the installation number of the first springs 5 and the second springs 3 is determined according to the length of the screen 4, and the installation positions of the first springs 5 and the second springs 3 on the screen 4 correspond to each other hand. Install protection network 6 between the discharge gate of hopper 2 and fine sand recycling machine 7, protection network 6 is used for preventing that the sand material from spattering outward, furtherly, is close to 2 one end of hopper and installs cat ladder structure 8 through screw fastening connecting piece fixed connection on the fine sand recycling machine 7 fuselage, installs between protection network 6 and the hopper 2 and overhauls platform 9, overhauls platform 9 and is connected with cat ladder structure 8, and operating personnel gets into through cat ladder structure 8 and overhauls platform 9 and overhaul the operation. This device is through the slope extension fine sand ejection of compact speed of adjusting 7 discharge gates of machine is retrieved to fine sand, adjusts 7 feed inlets of machine is retrieved to fine sand size adjustment and retrieves the volume that fine sand was retrieved, increases the dehydration time of fine sand, reduces the moisture content of fine sand.
Claims (4)
1. A method of producing sand from heterogeneous sandstone, comprising the steps of:
step 1, a primary crushing process: sending the raw material with the particle size of more than 100mm after blasting into a jaw crusher for coarse crushing to obtain a product I;
step 2, a medium crushing process: conveying the first product to a vibrating screen by a vibrating feeder and a belt conveyor for soil removal screening, conveying the material which is screened out and is larger than 80mm of screen holes of an upper layer screen of the vibrating screen to a middle crushing cone by the belt conveyor for crushing, conveying the crushed product to the vibrating screen again by the belt conveyor for secondary screening to obtain a second product which is smaller than 80mm of screen holes of a lower layer screen of the vibrating screen;
and step 3: fine crushing process: the second product is sent into a fine crushing conical crusher by a vibrating feeder and a belt conveyor to be finely crushed to obtain a third product;
and 4, step 4: the screening process comprises the following steps: conveying the product III into a sieving machine by a belt conveyor for sieving to obtain a product IV with the particle size of 5-20 mm;
and 5: a water adding fine crushing process: conveying the product IV to a vertical crusher by a belt conveyor for fine crushing, wherein a water feeding pipeline is required to be arranged on a crushing cavity of the vertical crusher because the product IV has large mud content and certain cohesiveness, and a small amount of water is added into the crushing cavity through the water feeding pipeline to prevent a rotor from being locked; conveying the finely crushed product IV onto a rubber belt conveyor to a vibrating screen for three-stage screening to obtain a product V with the particle size of less than 5 mm;
and 6: washing, dehydrating and blending: the product V enters a spiral sand washer through a rubber belt conveyor to be cleaned to obtain a product VI, the cleaned product VI enters a first-stage dewatering screen to be dewatered, fine powder output by the spiral sand washer is introduced into a fine sand recovery tank to be recovered, wherein the fine sand recovered from the fine sand recovery tank needs to be introduced into the first-stage dewatering screen by a fine sand recovery machine to be mixed in proportion due to low stone powder content, but the recovered fine sand has strong water retention property, and is still packed in a lump after being dewatered on the fine sand recovery machine, so a crushing device is arranged below a discharge port of the fine sand recovery machine, after the sand lump is crushed, the crushed sand lump and the dewatered product VI are uniformly mixed on the dewatering screen to form a product VII, and the product VII are conveyed to a finished product sand silo by a belt conveyor to be stockpiled;
the raw material is purple red sandstone, and the stock ground is a heterogeneous stock ground in which soft rock is mixed;
the steps 1-4 adopt a wet production process, namely, a spraying system is additionally arranged at the discharge end of the belt conveyor in the process;
the crushing device is as follows: a hopper (2) is arranged below a discharge port of the fine sand recycling machine (7), the hopper (2) is positioned right above the belt conveyor (1), one end of a screen (4) is horizontally arranged on the inner side wall of the hopper (2), the upper part of the other end of the screen (4) is connected with the machine body of the fine sand recycling machine (7) through at least two first springs (5), the lower part of the other end of the screen (4) is connected with the inner side wall of the hopper (2) through at least two second springs (3), and a protective screen (6) is arranged between the hopper (2) and the discharge port of the fine sand recycling machine (7); one end of the screen (4) is hinged on the inner side wall of the hopper (2) through a hinge (10).
2. A method of producing sand from heterogeneous sandstone according to claim 1, wherein: and (3) additionally arranging an iron removal device on the belt conveyor in the step 2.
3. A method for producing sand from heterogeneous sandstone according to claim 1, characterized in that a ladder structure (8) is provided on the body of the fines reclaimer (7) near the end of the hopper (2).
4. A method for producing sand from heterogeneous sandstone according to claim 1, characterized in that an inspection platform (9) is arranged between the protective mesh (6) and the hopper (2), and the inspection platform (9) is connected to the ladder structure (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612397.4A CN115180855B (en) | 2022-05-31 | 2022-05-31 | Method for producing sand by using heterogeneous sandstone |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210612397.4A CN115180855B (en) | 2022-05-31 | 2022-05-31 | Method for producing sand by using heterogeneous sandstone |
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| CN115180855A CN115180855A (en) | 2022-10-14 |
| CN115180855B true CN115180855B (en) | 2023-03-14 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525218A (en) * | 2009-04-07 | 2009-09-09 | 中国水利水电第五工程局有限公司 | Technology for making sand from sandstone |
| RU2629570C1 (en) * | 2016-06-27 | 2017-08-30 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Plant for crushing, selective grinding, drying and separation of polymineral industrial wastes |
| CN113578498A (en) * | 2021-09-08 | 2021-11-02 | 成都大宏立机器股份有限公司 | Environment-friendly wet production equipment for aggregate of sandstone materials |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2014209B1 (en) * | 2015-01-29 | 2017-01-27 | Oijense Bovendijk B V | Breaking device with suction and method for breaking heterogeneous lump material. |
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2022
- 2022-05-31 CN CN202210612397.4A patent/CN115180855B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525218A (en) * | 2009-04-07 | 2009-09-09 | 中国水利水电第五工程局有限公司 | Technology for making sand from sandstone |
| RU2629570C1 (en) * | 2016-06-27 | 2017-08-30 | Федеральное государственное бюджетное учреждение науки Институт теплофизики им. С.С. Кутателадзе Сибирского отделения Российской академии наук (ИТ СО РАН) | Plant for crushing, selective grinding, drying and separation of polymineral industrial wastes |
| CN113578498A (en) * | 2021-09-08 | 2021-11-02 | 成都大宏立机器股份有限公司 | Environment-friendly wet production equipment for aggregate of sandstone materials |
Non-Patent Citations (1)
| Title |
|---|
| 苗家坝砂石料加工系统概述;张春喜等;《科技信息》(第16期);全文 * |
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