CN112973931A - System for preparing reclaimed sand from waste concrete - Google Patents
System for preparing reclaimed sand from waste concrete Download PDFInfo
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- CN112973931A CN112973931A CN201911313101.3A CN201911313101A CN112973931A CN 112973931 A CN112973931 A CN 112973931A CN 201911313101 A CN201911313101 A CN 201911313101A CN 112973931 A CN112973931 A CN 112973931A
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- 239000004576 sand Substances 0.000 title claims abstract description 26
- 239000002699 waste material Substances 0.000 title claims abstract description 22
- 238000010438 heat treatment Methods 0.000 claims abstract description 62
- 238000001816 cooling Methods 0.000 claims abstract description 53
- 238000001035 drying Methods 0.000 claims abstract description 47
- 238000012216 screening Methods 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000007921 spray Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 6
- 230000035939 shock Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
Images
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
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/02—Codes relating to disintegrating devices adapted for specific materials for reinforced concrete
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a system for preparing reclaimed sand from waste concrete, which comprises a feeding mechanism, a heating mechanism, a cooling mechanism, a drying mechanism, a crushing mechanism and a screening mechanism, wherein the feeding mechanism is used for conveying the concrete, heating the concrete through the heating mechanism, cooling the high-temperature concrete through a cooling machine, drying the wet concrete through the drying mechanism, and finally crushing and screening to obtain the reclaimed sand. The method has the advantages of improving the preparation efficiency and preparation amount of the reclaimed sand, and is mainly used for treating the waste concrete.
Description
Technical Field
The invention relates to the technical field of concrete recovery, in particular to a system for preparing reclaimed sand from waste concrete.
Background
With the continuous expansion of urban construction frames, the pace of novel urbanization and new rural construction is gradually accelerated, and the large-scale removal of urban villages and old city reconstruction provide better residences, and meanwhile, the construction waste also becomes a huge obstacle of ecological civilization. The urban construction process is accompanied by the generation of urban construction waste and the rapid increase of the discharge amount, and the construction waste is generated at suburbs, two sides of roads, even rivers, lakes and the like, thereby causing serious pollution to the urban environment.
Therefore, how to effectively treat the waste concrete is the problem which needs to be solved at the present stage, the existing waste concrete generally obtains the regenerated sand again through crushing and screening, and the effective utilization of resources is realized, but the mode is simple and convenient, but the preparation efficiency is low and the preparation amount is low because the concrete is not completely crushed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the system for preparing the reclaimed sand from the waste concrete, which can improve the preparation efficiency and preparation quantity of the reclaimed sand.
The technical scheme adopted by the invention for realizing the purpose is as follows: a system for preparing reclaimed sand from waste concrete comprises a feeding mechanism, a heating mechanism, a cooling mechanism, a drying mechanism, a crushing mechanism and a screening mechanism, wherein the feeding mechanism is used for conveying concrete, the heating mechanism comprises a heating box and a first spiral conveying roller arranged in the heating box, a first motor is fixedly arranged outside the heating box, the first motor is fixedly connected with the first spiral conveying roller, a feed inlet of the heating box corresponds to a feed outlet of the feeding mechanism, and a plurality of groups of first heating rods are fixedly arranged on the inner wall of the heating box;
the cooling mechanism comprises a cooling box and a second spiral conveying roller arranged inside the cooling box, a second motor is fixedly arranged outside the cooling box, the second motor is fixedly connected with the second spiral conveying roller, a feed inlet of the cooling box corresponds to a discharge outlet of the heating box, a plurality of groups of spray heads are fixedly arranged on the inner wall of the cooling box, the spray heads are connected with a water delivery pipe, the water delivery pipe penetrates out of the cooling box and is communicated with an external water source, and a plurality of groups of first exhaust ports are arranged on the cooling box;
the drying mechanism comprises a drying box and a third spiral conveying roller arranged inside the drying box, a third motor is fixedly mounted outside the drying box, the third motor is fixedly connected with the third spiral conveying roller, a feed inlet of the drying box corresponds to a discharge outlet of the cooling mechanism, a plurality of groups of second heating rods are fixedly mounted on the inner wall of the drying mechanism, and a plurality of groups of second exhaust ports are arranged on the drying box;
the discharge gate of drying mechanism with rubbing crusher constructs's feed inlet is corresponding for smash the operation through rubbing crusher constructs to the concrete, rubbing crusher constructs the discharge gate with be connected through the conveyer belt between the feed inlet of screening mechanism, make and sieve the concrete after smashing through screening mechanism, thereby obtain the reclaimed sand.
The temperature in the heating box is set to be 200-400 ℃, the concrete heated by the heating mechanism is cooled to 20-30 ℃ in 10-15 min by the water spraying and cooling effect in the cooling box, and the temperature in the drying box is set to be 100-300 ℃.
The bottom of the cooling box is provided with a plurality of groups of water outlets, the water outlets are provided with separation nets, and the water outlets are connected with drainage pipelines.
Equal fixed mounting has the air discharge fan in a gas vent, No. two gas vents, and all is connected with exhaust duct.
The heating cabinet is internally provided with a temperature sensor, the water delivery pipe is provided with a flowmeter and an electromagnetic valve, and the drying cabinet is internally provided with a temperature sensor II.
No. one motor, No. two motors, No. three motors all are connected with the converter through the data line, realize adjusting the rotational frequency of No. one motor, No. two motors, No. three motors through the converter for adjust the conveying efficiency to the concrete.
Still including control mechanism, control mechanism includes the control box and installs the controller that uses the singlechip as the core inside the control box, display screen and multiunit control button are installed to the gomphosis on the control box, with a temperature sensor, No. two temperature sensor, flowmeter signal connection be provided with data processor, the display screen with data processor signal connection.
The invention has the beneficial effects that: this system is before smashing the concrete, at first through high temperature heating, then rapid water cooling to normal atmospheric temperature, utilizes the thermal shock effect for the concrete production breaks, can make the transportation in-process have certain crushing effect to the concrete through screw feed, thereby makes the later stage very simple to the smashing of concrete, and crushing efficiency and effect all obtain effective the promotion, thereby makes the preparation efficiency and the preparation volume of reclaimed sand all obtain the reinforcing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of a signal transmission structure of the controller according to the present invention;
FIG. 3 is a schematic diagram of a signal transmission structure of a data processor according to the present invention;
FIG. 4 is a schematic view of a heating mechanism according to the present invention;
FIG. 5 is a schematic view of the cooling mechanism of the present invention;
fig. 6 is a schematic view of the structure of the drying mechanism of the present invention.
In the figure: the device comprises a feeding mechanism 1, a heating mechanism 2, a cooling mechanism 3, a drying mechanism 4, a crushing mechanism 5, a screening mechanism 6, a heating box 201, a spiral conveying roller 202I, a motor 203I, a heating rod 204I, a cooling box 301, a spiral conveying roller 302 II, a motor 303 II, a spray head 304, a water conveying pipe 305, an exhaust port 306I, a drying box 401, a spiral conveying roller 402 III, a motor 403 III, a heating rod 404 II, an exhaust port 405 II, a water outlet 307, an isolation net 308, an exhaust fan 7, a temperature sensor 8I, a temperature sensor 9, a flow meter 10, an electromagnetic valve 11 II, a temperature sensor 11 II, a controller 12, a display 13, a control button 14 and a data processor 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, 4, 5, 6, a system for preparing reclaimed sand from waste concrete includes a feeding mechanism 1, a heating mechanism 2, a cooling mechanism 3, a drying mechanism 4, a crushing mechanism 5, and a screening mechanism 6, where the feeding mechanism 1 is used to convey concrete and can use a conveyor belt or other equipment with conveying effect, the heating mechanism 2 includes a heating box 201 and a first spiral conveying roller 202 disposed inside the heating box 201, a first motor 203 is fixedly mounted outside the heating box 201, the first motor 203 is fixedly connected to the first spiral conveying roller 202, so that the first motor 203 drives the first spiral conveying roller 202 to rotate, thereby realizing the conveying effect of concrete in the heating mechanism 2, a feed inlet of the heating box 201 corresponds to a feed outlet of the feeding mechanism 1, thereby realizing the conveying of concrete, a plurality of sets of first heating rods 204 are fixedly mounted on an inner wall of the heating box 201, the heating rod No. one 204 is used for heating the interior of the heating box 201, so that the concrete is heated;
the cooling mechanism 3 comprises a cooling box 301 and a second spiral conveying roller 302 arranged inside the cooling box 301, a second motor 303 is fixedly arranged outside the cooling box 301, the second motor 303 is fixedly connected with the second spiral conveying roller 302 to realize the conveying effect of concrete in the cooling box 301, a feed inlet of the cooling box 301 corresponds to a discharge outlet of the heating box 201, a plurality of groups of spray heads 304 are fixedly arranged on the inner wall of the cooling box 301, the spray heads 304 are connected with a water conveying pipe 305, the water conveying pipe 305 penetrates out of the cooling box 301 to be communicated with an external water source, high-temperature concrete is rapidly cooled through water, and a plurality of groups of first exhaust ports 306 are arranged on the cooling box 301 and used for discharging steam generated during cooling;
the drying mechanism 4 comprises a drying box 401 and a third spiral conveying roller 402 arranged inside the drying box 401, a third motor 403 is fixedly installed outside the drying box 401, the third motor 403 is fixedly connected with the third spiral conveying roller 402 to realize the conveying of concrete inside the drying box 401, a feed inlet of the drying box 401 corresponds to a discharge outlet of the cooling mechanism 3, a plurality of groups of second heating rods 404 are fixedly installed on the inner wall of the drying mechanism 4 to dry the cooled concrete, and a plurality of groups of second exhaust ports 405 are arranged on the drying box 401 and used for discharging water vapor generated during drying;
the discharge gate of drying mechanism 4 is corresponding with the feed inlet of rubbing crusher mechanism 5 for carry out crushing operation to the concrete through rubbing crusher mechanism 5, be connected through the conveyer belt between the discharge gate of rubbing crusher mechanism 5 and the feed inlet of screening mechanism 6, make and sieve the concrete after smashing through screening mechanism 6, thereby obtain the reclaimed sand.
Example two
Referring to fig. 1, 4, 5 and 6, in a system for preparing reclaimed sand from waste concrete, in an embodiment, the temperature inside a heating box 201 is set to 200-400 ℃, concrete heated by a heating mechanism 2 is cooled to 20-30 ℃ in a cooling box 301 by spraying water for 10-15 min, so that the concrete is cracked by thermal shock, and the temperature inside a drying box 401 is set to 100-300 ℃, so that the cooled wet concrete is dried.
EXAMPLE III
Referring to fig. 1 to 6, a system for preparing reclaimed sand from waste concrete is substantially the same as the first embodiment, and further, a plurality of sets of water outlets 307 are arranged at the bottom of the cooling box 301, an isolation net 308 is arranged on the water outlets 307, and the water outlets 307 are connected with water discharge pipes, so that water can be discharged through the water outlets 307 during water cooling, thereby avoiding soaking the concrete and affecting the later treatment of the concrete, and larger particles generated by the concrete can be prevented from blocking the water outlets 307 through the isolation net 308;
Further, be provided with temperature sensor 8 No. one in heating cabinet 201 is inside, be provided with flowmeter 9 and solenoid valve 10 on raceway 305, be provided with No. two temperature sensor 11 in the drying cabinet 401, through the inside temperature of a temperature sensor 8 detectable heating cabinet 201, through the steerable discharge of flowmeter 9 and solenoid valve 10 to adjust cooling rate, make and satisfy the operational requirement. The temperature inside the drying oven 401 can be detected by the second temperature sensor 11;
the first motor 203, the second motor 303 and the third motor 403 are connected with frequency converters through data lines, and the rotation frequency of the first motor 203, the second motor 303 and the third motor 403 is adjusted through the frequency converters, so that the conveying efficiency of concrete is adjusted;
still including control mechanism, control mechanism includes the control box and installs controller 12 inside using the singlechip as the core in the control box, display screen 13 and multiunit control button 14 are installed to the gomphosis on the control box, with a temperature sensor 8, No. two temperature sensor 11, flowmeter 9 signal connection's be provided with data processor 15, display screen 13 and data processor 15 signal connection, make can know heating cabinet 201 through display screen 13, the temperature of drying cabinet 401 inside and the discharge on the cooling cabinet 301, thereby make and send corresponding control signal to controller 12 through control button 14, thereby make through the work of controller 12 control corresponding heating rod 204, No. two heating rod 404, solenoid valve 10, realize temperature regulation, satisfy the work demand.
Example four
Referring to fig. 1-6, a system for preparing reclaimed sand from waste concrete, the working principle of the invention is as follows: when the concrete conveying device is used, the first heating rod 204 and the second heating rod 404 are started firstly, so that the internal temperature of the heating box 201 reaches 200-400 ℃, the internal temperature of the drying box 401 reaches 100-300 ℃, when the internal temperature reaches the temperature, the feeding mechanism 1 conveys concrete into the heating box 201, the first motor 203 drives the first spiral conveying roller 202 to rotate, the conveying of the concrete in the heating box 201 is realized, and the high-temperature heating of the concrete is realized;
conveying the high-temperature heated concrete into a cooling box 301, starting an electromagnetic valve 10 to enable a spray head 304 to spray water, cooling the high-temperature concrete to 10-30 ℃ within 10-15 min, enabling the concrete to crack due to thermal shock, and driving a second spiral conveying roller 302 to rotate through a second motor 303 to realize conveying of the concrete in the cooling box 301;
then the concrete is carried to the drying cabinet 401 in, No. three motor 403 drive No. three spiral conveying roller 402 and rotate, realize the transport to the concrete in the drying cabinet 401, the temperature in the drying cabinet 401 is dried the moist concrete, the concrete after the drying gets into rubbing crusher structure 5 and smashes the concrete, later gets into screening mechanism 6, sieves and obtain the reclaimed sand.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a system for abandonment concrete preparation reclaimed sand which characterized in that: the concrete conveying device comprises a feeding mechanism (1), a heating mechanism (2), a cooling mechanism (3), a drying mechanism (4), a crushing mechanism (5) and a screening mechanism (6), wherein the feeding mechanism (1) is used for conveying concrete, the heating mechanism (2) comprises a heating box (201) and a first spiral conveying roller (202) arranged inside the heating box (201), a first motor (203) is fixedly arranged outside the heating box (201), the first motor (203) is fixedly connected with the first spiral conveying roller (202), a feeding hole of the heating box (201) corresponds to a discharging hole of the feeding mechanism (1), and a plurality of groups of first heating rods (204) are fixedly arranged on the inner wall of the heating box (201);
the cooling mechanism (3) comprises a cooling box (301) and a second spiral conveying roller (302) arranged inside the cooling box (301), a second motor (303) is fixedly installed outside the cooling box (301), the second motor (303) is fixedly connected with the second spiral conveying roller (302), a feed inlet of the cooling box (301) corresponds to a discharge outlet of the heating box (201), a plurality of groups of spray heads (304) are fixedly installed on the inner wall of the cooling box (301), the spray heads (304) are connected with a water conveying pipe (305), the water conveying pipe (305) penetrates through the cooling box (301) to be communicated with an external water source, and a plurality of groups of first exhaust ports (306) are formed in the cooling box (301);
the drying mechanism (4) comprises a drying box (401) and a third spiral conveying roller (402) arranged inside the drying box (401), a third motor (403) is fixedly installed outside the drying box (401), the third motor (403) is fixedly connected with the third spiral conveying roller (402), a feed inlet of the drying box (401) corresponds to a discharge outlet of the cooling mechanism (3), a plurality of groups of second heating rods (404) are fixedly installed on the inner wall of the drying mechanism (4), and a plurality of groups of second exhaust ports (405) are arranged on the drying box (401);
the discharge gate of dry mechanism (4) with the feed inlet of rubbing crusher mechanism (5) is corresponding for smash the operation through rubbing crusher mechanism (5) to the concrete, the discharge gate of rubbing crusher mechanism (5) with connect through the conveyer belt between the feed inlet of screening mechanism (6), make and sieve the concrete after smashing through screening mechanism (6), thereby obtain the reclaimed sand.
2. The system for preparing reclaimed sand from waste concrete according to claim 1, wherein: the temperature in the heating box (201) is set to be 200-400 ℃, the concrete heated by the heating mechanism (2) is cooled to 20-30 ℃ in the cooling box (301) within 10-15 min through the water spraying cooling effect, and the temperature in the drying box (401) is set to be 100-300 ℃.
3. The system for preparing reclaimed sand from waste concrete according to claim 1, wherein: the bottom of the cooling box (301) is provided with a plurality of groups of water outlets (307), the water outlets (307) are provided with isolation nets (308), and the water outlets (307) are connected with drainage pipelines.
4. The system for preparing reclaimed sand from waste concrete according to claim 1, wherein: exhaust fan (7) are all fixedly mounted in first exhaust port (306) and second exhaust port (405), and all are connected with exhaust duct.
5. The system for preparing reclaimed sand from waste concrete according to claim 1, wherein: the heating box (201) is internally provided with a first temperature sensor (8), the water delivery pipe (305) is provided with a flowmeter (9) and an electromagnetic valve (10), and the drying box (401) is internally provided with a second temperature sensor (11).
6. The system for preparing reclaimed sand from waste concrete according to claim 1, wherein: no. one motor (203), No. two motor (303), No. three motor (403) all are connected with the converter through the data line, realize adjusting the rotational frequency of No. one motor (203), No. two motor (303), No. three motor (403) through the converter for adjust the conveying efficiency to the concrete.
7. The system for preparing reclaimed sand from waste concrete according to claim 5, wherein: still including control mechanism, control mechanism includes the control box and installs controller (12) that use the singlechip as the core inside the control box, display screen (13) and multiunit control button (14) are installed to the gomphosis on the control box, with temperature sensor (8), No. two temperature sensor (11), flowmeter (9) signal connection be provided with data processor (15), display screen (13) with data processor (15) signal connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313101.3A CN112973931A (en) | 2019-12-18 | 2019-12-18 | System for preparing reclaimed sand from waste concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911313101.3A CN112973931A (en) | 2019-12-18 | 2019-12-18 | System for preparing reclaimed sand from waste concrete |
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| Publication Number | Publication Date |
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| CN112973931A true CN112973931A (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911313101.3A Pending CN112973931A (en) | 2019-12-18 | 2019-12-18 | System for preparing reclaimed sand from waste concrete |
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| CN (1) | CN112973931A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113029891A (en) * | 2019-12-24 | 2021-06-25 | 山西大地华基建材科技有限公司 | Demonstration device for water permeability of reaction permeable brick |
| CN118218099A (en) * | 2024-05-24 | 2024-06-21 | 得勤(扬州)精密磨具有限公司 | Ceramic grinding wheel raw material crushing device |
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| CN118218099A (en) * | 2024-05-24 | 2024-06-21 | 得勤(扬州)精密磨具有限公司 | Ceramic grinding wheel raw material crushing device |
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Application publication date: 20210618 |