CN111468272A - Multistage environmental protection breaker of concrete waste material - Google Patents
Multistage environmental protection breaker of concrete waste material Download PDFInfo
- Publication number
- CN111468272A CN111468272A CN202010296645.XA CN202010296645A CN111468272A CN 111468272 A CN111468272 A CN 111468272A CN 202010296645 A CN202010296645 A CN 202010296645A CN 111468272 A CN111468272 A CN 111468272A
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- Prior art keywords
- crushing
- crushing box
- side wall
- concrete
- concrete waste
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/005—Crushing or disintegrating by reciprocating members hydraulically or pneumatically operated
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
- B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/30—Driving mechanisms
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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
- 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
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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
- 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention relates to the technical field of concrete recovery, and discloses a multistage environment-friendly crushing device for concrete waste, which comprises a crushing box, wherein a feed inlet is formed in the left side of the upper surface of the crushing box, an electromagnet is arranged at the top of the crushing box, hydraulic cylinders are arranged on the upper portions of the left side wall and the right side wall of the crushing box, piston rods of the hydraulic cylinders are fixedly connected with an extrusion plate, a second rotating seat is arranged in the middle of the left side wall and the right side wall of the crushing box and rotatably connected with the upper portion of a supporting plate, the middle of the lower surface of the supporting plate is rotatably connected with a piston rod of a cylinder, a first rotating seat is arranged at the lower end of the cylinder and rotatably connected with the lower portion of the crushing box, a driving motor is arranged. The invention is suitable for a multistage environment-friendly crushing device for concrete waste, wherein a stripper plate is arranged at the upper part of the device, so that large concrete is crushed for the first time, and reinforcing steel bars in the concrete are separated out.
Description
Technical Field
The invention relates to the technical field of concrete recovery, in particular to a multistage environment-friendly crushing device for concrete waste.
Background
Concrete is one of the most important civil engineering materials of the present generation. The artificial stone is prepared by a cementing material, granular aggregate (also called aggregate), water, an additive and an admixture which are added if necessary according to a certain proportion, and is formed by uniformly stirring, compacting, forming, curing and hardening. The concrete has the characteristics of rich raw materials, low price and simple production process, so that the consumption of the concrete is increased more and more. Meanwhile, the concrete also has the characteristics of high compressive strength, good durability, wide strength grade range and the like. These characteristics make it very widely used, not only in various civil engineering, that is shipbuilding, machinery industry, ocean development, geothermal engineering, etc., but also concrete is an important material.
In the process of recovering concrete, it is generally necessary to crush the concrete, and since the concrete contains many building materials, it is necessary to crush the concrete in multiple stages.
Chinese patent (publication number: CN 209772353U) discloses a crushing device for building concrete solid waste treatment, which comprises a crushing box, wherein the bottom of the crushing box is connected with a blanking hopper through a bolt, one side of the crushing box is connected with a feeding hopper through a bolt, the top plate of the crushing box is connected with a shell through a bolt, the inside of the crushing box is connected with two crushing shafts through bearings, the outer walls of the circumferences of the two crushing shafts are connected with crushing rollers through bolts, and the top of the shell is connected with a hydraulic cylinder through a bolt. One side welding of broken briquetting has last board of shearing, intermeshing between board and the last board of shearing down, lower board of shearing and last board of shearing intermeshing can be with the solid wastes material of preliminary broken building concrete when the oppression is broken, cut together with the reinforcing bar of inside parcel, make two crushing rollers broken more thoroughly to the concrete piece, avoid the reinforcing bar to coil the inside phenomenon that causes the equipment to damage of device and take place, improve broken efficiency, the device can cut the reinforcing bar, but does not separate reinforcing bar and concrete, subsequent processing is still comparatively difficult, consequently, need improve the device.
Disclosure of Invention
The invention provides a multistage environment-friendly crushing device for concrete waste, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a multistage environmental protection breaker of concrete waste material, includes broken case, and the upper surface left side of broken case is equipped with the feed inlet, the top of broken case is equipped with the electro-magnet, and lateral wall upper portion is equipped with the pneumatic cylinder about broken case, the piston rod fixed connection stripper plate of pneumatic cylinder, lateral wall middle part is equipped with the second and rotates the seat about broken case, and the second rotates the upper portion that the seat rotated joint support board, and the lower surface middle part of backup pad rotates the piston rod of connecting the cylinder, and the lower extreme of cylinder is equipped with first rotation seat, and first rotation seat rotates the lower part of connecting broken case, the left side wall lower part of broken case is equipped with driving motor, and driving motor's first bevel gear of output shaft fixed connection, first bevel gear meshing connect the second bevel gear, and the left end of second bevel gear fixed connection.
As a preferable technical scheme of the invention, the middle part of the lower surface of the crushing box is provided with a discharge opening.
As a preferable technical solution of the present invention, a switching device is provided at a lower portion of the discharge opening.
As a preferable technical scheme of the invention, the upper side and the lower side of the extrusion plate are provided with guide rods, and the middle parts of the guide rods are in sliding connection with the left side wall and the right side wall of the crushing box.
As a preferable technical scheme of the invention, the supporting plate is in a horizontal position after the piston rod of the air cylinder is completely extended out.
As a preferable technical scheme of the invention, the left end of the rotating shaft is rotatably connected with the left side wall of the crushing box.
As a preferable technical scheme of the invention, the right end of the rotating shaft is rotatably connected with the right side wall of the crushing box.
As a preferable technical scheme of the invention, the left side and the right side of the lower surface of the crushing box are provided with supporting legs.
As a preferable technical scheme of the invention, the opposite surface of the extrusion plate is provided with a crushing bulge.
The invention has the following advantages:
the multistage environment-friendly crushing device for the concrete waste is suitable for a multistage environment-friendly crushing device for the concrete waste, massive concrete is crushed for the first time by arranging the extrusion plate on the upper portion of the device, reinforcing steel bars in the concrete are separated out, after the primary crushing is completed, the concrete can be crushed for the second time by the crushing rod, the concrete can be crushed more completely by multiple times of crushing, and the effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a perspective view of a multistage environment-friendly crushing device for concrete waste.
Fig. 2 is a schematic diagram of the internal structure of a multistage environment-friendly crushing device for concrete waste.
Fig. 3 is a front view of fig. 2.
FIG. 4 is a schematic structural diagram of an extrusion plate in a multistage environment-friendly crushing device for concrete waste.
In the figure: 1. supporting legs; 2. a drive motor; 3. a first bevel gear; 4. a rotating shaft; 5. a second bevel gear; 6. a crushing box; 7. a hydraulic cylinder; 8. a guide bar; 9. a feed inlet; 10. crushing the stems; 11. a cylinder; 12. a support plate; 13. a pressing plate; 14. an electromagnet; 15. a discharge opening; 16. a first rotating base; 17. a second rotating base; 18. and (5) crushing the bulges.
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, a multistage environment-friendly crushing device for concrete waste comprises a crushing box 6, wherein supporting legs 1 are arranged on the left side and the right side of the lower surface of the crushing box 6, a feeding port 9 is arranged on the left side of the upper surface of the crushing box 6, a discharging port 15 is arranged in the middle of the lower surface of the crushing box 6, a switch device is arranged on the lower portion of the discharging port 15, the opening and closing of the discharging port 15 can be controlled through the switch device, an electromagnet 14 is arranged on the top of the crushing box 6, a hydraulic cylinder 7 is arranged on the upper portion of the left side wall and the right side wall of the crushing box 6, a piston rod of the hydraulic cylinder 7 is fixedly connected with a squeezing plate 13, guide rods 8 are arranged on the upper side and the lower side of the squeezing plate 13, the middle portion of each guide rod 8 is slidably connected with the left side wall and the right side wall of the crushing box 6, a, backup pad 12 is in horizontal position after cylinder 11's piston rod stretches out completely, and the lower extreme of cylinder 11 is equipped with first rotation seat 16, and first rotation seat 16 rotates the lower part of connecting broken case 6, the left side wall lower part of broken case 6 is equipped with driving motor 2, and driving motor 2's the first bevel gear of output shaft fixed connection 3, the second bevel gear 5 is connected in the meshing of first bevel gear 3, the left end of second bevel gear 5 fixed connection pivot 4, and the left end of pivot 4 rotates the left side wall of connecting broken case 6, and the right-hand member of pivot 4 rotates the right side wall of connecting broken case 6, and the middle part of pivot 4 is equipped with crushing pole 10.
Example two
Referring to fig. 4, the other contents of the present embodiment are the same as those of the first embodiment, except that: the opposite side of the pressing plate 13 is provided with a crushing protrusion 18. In order to improve the crushing effect of the crushing plate 13, crushing protrusions 18 are provided on the crushing plate 13, so that concrete is crushed by the mutual engagement of the crushing protrusions 18, and the reinforcing bars inside the concrete can be sheared.
In the implementation process of the invention, the air cylinder 11 is started, the piston rod of the air cylinder 11 extends out to push the support plates 12 to rotate upwards, when the piston rod of the air cylinder 11 extends out completely, the support plates 12 are in a horizontal position, at the moment, the middle parts of the crushing boxes 6 are blocked by the two support plates 12, at the moment, the hydraulic cylinder 7 is started, the piston rod of the hydraulic cylinder 7 contracts, so that the two extrusion plates 13 move towards two sides, concrete waste is thrown into the device through the feed inlet 9, after the concrete is put in, the hydraulic cylinder 7 is started, the piston rod of the hydraulic cylinder 7 extends out to push the two extrusion plates 13 to move close to each other, so that the concrete is extruded and crushed through the two extrusion plates 13, the concrete is extruded into small blocks, and metal such as reinforcing steel bars in the concrete is separated from the concrete, at the moment, the electromagnet 14 is switched on, the electromagnet 14 generates strong magnetism to adsorb metal, thereby realize the separation of reinforcing bar and concrete, after accomplishing the first breakage of concrete, reverse start cylinder 11, the piston rod of cylinder 11 contracts, thereby make backup pad 12 rotate downwards, the lower part of two backup pads 12 is opened, the concrete of fritter falls in the bottom of broken case 6 this moment, start driving motor 2 this moment, the output shaft of driving motor 2 drives pivot 4 through meshing connected first bevel gear 3 and second bevel gear 5 and rotates, pivot 4 drives the high-speed rotation of crushing pole 10, thereby carry out the secondary crushing to the concrete, after accomplishing the breakage, the concrete falls in the bottom of broken case 6, open discharge opening 15 this moment, can take out the concrete that accomplishes the breakage, thereby accomplish whole broken processing; the multistage environment-friendly crushing device for the concrete waste is suitable for a multistage environment-friendly crushing device for the concrete waste, massive concrete is crushed for the first time by arranging the extrusion plate 13 on the upper portion of the device, reinforcing steel bars in the concrete are separated out, after the primary crushing is completed, the concrete can be crushed for the second time by the crushing rod 10, the concrete can be crushed more completely by multiple times of crushing, and the effect is better.
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 (9)
1. A multistage environment-friendly crushing device for concrete waste comprises a crushing box (6), wherein a feeding hole (9) is formed in the left side of the upper surface of the crushing box (6), and is characterized in that an electromagnet (14) is arranged at the top of the crushing box (6), a hydraulic cylinder (7) is arranged on the upper portion of the left side wall and the right side wall of the crushing box (6), a piston rod of the hydraulic cylinder (7) is fixedly connected with an extrusion plate (13), a second rotating seat (17) is arranged in the middle of the left side wall and the right side wall of the crushing box (6), the second rotating seat (17) is rotatably connected with the upper portion of a supporting plate (12), the middle of the lower surface of the supporting plate (12) is rotatably connected with the piston rod of a cylinder (11), a first rotating seat (16) is arranged at the lower end of the cylinder (11), the first rotating seat (16) is rotatably connected with the lower portion of the crushing box (6), a driving motor (2) is arranged on, the first bevel gear (3) is meshed with the second bevel gear (5), the second bevel gear (5) is fixedly connected with the left end of the rotating shaft (4), and the middle of the rotating shaft (4) is provided with a crushing rod (10).
2. The multistage environment-friendly concrete waste crushing device according to claim 1, wherein the crushing box (6) is provided with a discharge opening (15) in the middle of the lower surface thereof.
3. The multistage environmental protection type crushing device for concrete waste according to claim 2, wherein the lower part of the discharge opening (15) is provided with a switch device.
4. The multistage environment-friendly crushing device for the concrete waste according to claim 1, wherein guide rods (8) are arranged on the upper side and the lower side of the extrusion plate (13), and the middle parts of the guide rods (8) are slidably connected with the left side wall and the right side wall of the crushing box (6).
5. The multistage environment-friendly concrete waste crushing device according to claim 1, wherein the piston rod of the cylinder (11) is fully extended, and the supporting plate (12) is in a horizontal position.
6. The multistage environment-friendly concrete waste crushing device according to claim 1, wherein the left end of the rotating shaft (4) is rotatably connected with the left side wall of the crushing box (6).
7. The multistage environment-friendly crushing device for concrete waste according to claim 6, wherein the right end of the rotating shaft (4) is rotatably connected with the right side wall of the crushing box (6).
8. The multistage environment-friendly crushing device for the concrete waste according to claim 1, wherein the left side and the right side of the lower surface of the crushing box (6) are provided with supporting legs (1).
9. The multistage environment-friendly concrete waste crushing device according to claim 1, wherein the opposite side of the extrusion plate (13) is provided with crushing protrusions (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296645.XA CN111468272A (en) | 2020-04-15 | 2020-04-15 | Multistage environmental protection breaker of concrete waste material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296645.XA CN111468272A (en) | 2020-04-15 | 2020-04-15 | Multistage environmental protection breaker of concrete waste material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111468272A true CN111468272A (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010296645.XA Pending CN111468272A (en) | 2020-04-15 | 2020-04-15 | Multistage environmental protection breaker of concrete waste material |
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| CN (1) | CN111468272A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791794A (en) * | 2020-12-17 | 2021-05-14 | 山东山铝环境新材料有限公司 | Automatic crushing equipment is used in sulfate-resistant cement production |
| CN113083441A (en) * | 2021-04-09 | 2021-07-09 | 扬州市腾筑建筑工程有限公司 | Formula metal separation's device is inhaled to building rubbish magnetism |
| CN113856864A (en) * | 2021-09-06 | 2021-12-31 | 李欣 | Processing equipment is drawed to fragrant essential oil cream |
| CN114558681A (en) * | 2022-04-18 | 2022-05-31 | 张文 | Fitment is with abandonment ceramic tile recovery processing equipment |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004216265A (en) * | 2003-01-14 | 2004-08-05 | Teruo Mori | Concrete mass loading part structure of jaw crusher |
| CN206334739U (en) * | 2016-12-06 | 2017-07-18 | 河南省第一建筑工程集团有限责任公司 | A kind of building waste pulverizer for being easy to take out material |
| CN208230012U (en) * | 2018-02-25 | 2018-12-14 | 青岛广联发混凝土有限公司 | A kind of concrete waste material crushing reinforcing rod screening plant |
| CN109622187A (en) * | 2018-11-29 | 2019-04-16 | 安徽康乐机械科技有限公司 | A kind of lesser crusher of operating noise |
| CN209109231U (en) * | 2018-10-31 | 2019-07-16 | 湖北荣协电力器材有限公司 | A kind of dnockout building waste grinding device |
| CN209738099U (en) * | 2019-01-25 | 2019-12-06 | 潍坊市东升防水材料有限公司 | environment-friendly device with anti-aging layer for production of polyethylene polypropylene fiber waterproof coiled material |
| CN209772353U (en) * | 2019-03-27 | 2019-12-13 | 邵阳市吉祥混凝土有限公司 | building concrete is useless breaker for processing admittedly |
-
2020
- 2020-04-15 CN CN202010296645.XA patent/CN111468272A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004216265A (en) * | 2003-01-14 | 2004-08-05 | Teruo Mori | Concrete mass loading part structure of jaw crusher |
| CN206334739U (en) * | 2016-12-06 | 2017-07-18 | 河南省第一建筑工程集团有限责任公司 | A kind of building waste pulverizer for being easy to take out material |
| CN208230012U (en) * | 2018-02-25 | 2018-12-14 | 青岛广联发混凝土有限公司 | A kind of concrete waste material crushing reinforcing rod screening plant |
| CN209109231U (en) * | 2018-10-31 | 2019-07-16 | 湖北荣协电力器材有限公司 | A kind of dnockout building waste grinding device |
| CN109622187A (en) * | 2018-11-29 | 2019-04-16 | 安徽康乐机械科技有限公司 | A kind of lesser crusher of operating noise |
| CN209738099U (en) * | 2019-01-25 | 2019-12-06 | 潍坊市东升防水材料有限公司 | environment-friendly device with anti-aging layer for production of polyethylene polypropylene fiber waterproof coiled material |
| CN209772353U (en) * | 2019-03-27 | 2019-12-13 | 邵阳市吉祥混凝土有限公司 | building concrete is useless breaker for processing admittedly |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112791794A (en) * | 2020-12-17 | 2021-05-14 | 山东山铝环境新材料有限公司 | Automatic crushing equipment is used in sulfate-resistant cement production |
| CN112791794B (en) * | 2020-12-17 | 2022-04-05 | 山东山铝环境新材料有限公司 | Automatic crushing equipment is used in sulfate-resistant cement production |
| CN113083441A (en) * | 2021-04-09 | 2021-07-09 | 扬州市腾筑建筑工程有限公司 | Formula metal separation's device is inhaled to building rubbish magnetism |
| CN113083441B (en) * | 2021-04-09 | 2022-12-09 | 福建省曾志环保科技有限公司 | Formula metal separation's device is inhaled to building rubbish magnetism |
| CN113856864A (en) * | 2021-09-06 | 2021-12-31 | 李欣 | Processing equipment is drawed to fragrant essential oil cream |
| CN114558681A (en) * | 2022-04-18 | 2022-05-31 | 张文 | Fitment is with abandonment ceramic tile recovery processing equipment |
| CN114558681B (en) * | 2022-04-18 | 2023-06-27 | 安昌群 | Waste ceramic tile recovery processing equipment for decoration |
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Application publication date: 20200731 |