CN218308377U

CN218308377U - Aggregate-cement paste stripping and screening device for waste concrete stone blocks

Info

Publication number: CN218308377U
Application number: CN202222434581.2U
Authority: CN
Inventors: 卢福华; 何益紧; 卢福斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-09-14
Filing date: 2022-09-14
Publication date: 2023-01-17
Anticipated expiration: 2032-09-14

Abstract

The utility model discloses an aggregate-cement paste stripping and screening device for waste concrete stones, which comprises a stripping device and a screening device, wherein a stirring stripping net and a central shaft are arranged inside the stripping device, the upper end of the central shaft is fixedly connected with a stirring motor above a top cover of the stripping device, and the lower end of the central shaft is connected with a support at the center of a bottom plate of the stripping device; the screening device is characterized in that three screening outlets are sequentially arranged on the left side of the screening device from top to bottom, and a first vibrating screen, a second vibrating screen and a material guide plate are sequentially arranged at the screening outlets from top to bottom. The utility model discloses a stirring is peeled off net, vibrating motor and through the effect of first, second shale shaker, peels off the ground paste and classifying and screening and outside discharge, carries out peeling off and twice screening of aggregate and cement thick liquids through mechanical stirring for the separation of the aggregate-sand-cement powder multicomponent of building rubbish stone is more abundant, makes it reach the effect of the separation that becomes more meticulous.

Description

Aggregate-cement paste stripping and screening device for waste concrete stone blocks

Technical Field

The utility model belongs to the technical field of building material selects separately, specifically speaking relates to an aggregate-grout of abandonment concrete stone piece is peeled off and screening plant.

Background

As the world building industry moves into a high-speed development stage, concrete is used as the largest amount of man-made building material, and the consumption of natural resources and the negative impact on the environment thereof cause a discussion of sustainable development problems. As the proportion of aggregate in the concrete accounts for 70 percent, a large amount of natural sandstone is consumed, and the natural environment is greatly damaged. On the other hand, in urban construction, demolition of old buildings, demolition and maintenance of bridges and concrete pavements and the like generate a large amount of construction waste, the annual output of the construction waste in China currently reaches 20 hundred million tons, wherein a considerable proportion is concrete, and the treatment of the large amount of construction waste causes a series of environmental problems. The two problems can be better solved by crushing the waste concrete in the construction waste into the recycled coarse aggregate to produce the recycled concrete.

However, the surface of the recycled coarse aggregate is coated with a large amount of mortar, and the mortar has large porosity and numerous edges and corners, so that compared with the natural coarse aggregate, the recycled coarse aggregate has the characteristics of low density, high porosity, high water absorption, low strength, small elastic modulus and the like; in addition, the variation of the properties of the recycled coarse aggregate is large due to the difference of the strength grade, the mixing ratio, the service time, the service environment, the region, the production process and the like of the recycled coarse aggregate mother concrete. The above defects of the recycled coarse aggregate cause that the material performance, the mechanical property, the durability and the like of the recycled concrete and the common concrete are lower than those of the common concrete, and related research data show that the compressive strength of the recycled concrete is lower than that of the common concrete and is reduced by 8-24 percent compared with the common concrete; because the performance of the recycled concrete is poor and the discreteness is large, the performance of the recycled concrete is extremely difficult to control in actual engineering, and the popularization and the application of the recycled concrete in the engineering are limited. Therefore, it is necessary to separate the old mortar from the recycled coarse aggregate, so that the concrete prepared from the recycled coarse aggregate can be equal to or even better than the common concrete in all performances. Based on the situation, the aggregate-cement paste stripping and screening device for the waste concrete stones has positive significance in the field of cement mortar materials.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in overcoming prior art's not enough, provides an aggregate-grout of abandonment concrete stone piece is peeled off and screening plant

In order to solve the technical problem, the utility model adopts the following basic concept:

an aggregate-cement slurry stripping and screening device for waste concrete stones comprises a stripping device and a screening device, wherein the screening device is arranged below the stripping device, a stirring stripping net is arranged inside the stripping device, a vertical central shaft is arranged at the center inside the stripping device, the stirring stripping net is fixedly connected with the central shaft through a shaft sleeve, the upper end of the central shaft is fixedly connected with a stirring motor above a top cover of the stripping device, and the lower end of the central shaft is connected with a support at the center of a bottom plate of the stripping device; a feeding port is formed in the top cover of the stripping device, and a discharging port is formed in the right side of the bottom of the stripping device; the screening device is of an open barreled structure, three screening outlets are sequentially arranged on the left side of the barrel wall from top to bottom, and a first vibrating screen, a second vibrating screen and a material guide plate are sequentially arranged at the screening outlets from top to bottom; and a vibration motor is also arranged at the bottom of the screening device.

Further, the meshes of the stirring stripping net are sequentially reduced from top to bottom.

Further, the upper end of the central shaft is connected with the top cover of the stripping device through a bearing; the lower end of the central shaft is connected with the support through a bearing.

Further, the stripping device is fixedly arranged on the support frame.

Further, the bottom of screening plant is provided with the supporting leg.

Furthermore, the first vibrating screen, the second vibrating screen and the material guide plate are arranged in a parallel inclined mode, the right end of the first vibrating screen is higher than the left end of the second vibrating screen, and the left end of the first vibrating screen extends out of the screening outlet.

Further, the diameter of the screen hole of the first vibrating screen is 3-5mm.

Further, the diameter of the screen hole of the second vibrating screen is 0.5-1.0mm.

Furthermore, the inclination angles of the first vibrating screen, the second vibrating screen and the material guide plate are 30-45 degrees.

Furthermore, a supporting spring and an eccentric wheel are arranged at the right ends of the first vibrating screen, the second vibrating screen and the material guide plate, and the vibrating motor is in transmission connection with the eccentric wheel.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

The technical scheme of the utility model at the inside pivoted stirring net of peeling means that is provided with, stir inside aggregate, mesh top-down reduces in proper order, can make and carry out more fully between the aggregate, the mortar on aggregate surface grinds and gets into screening plant after breaking away from, through vibrating motor and through first, the effect of second shale shaker, can sieve the aggregate in grades and outwards discharge, peel off and twice sieve through the layering for the separation of the aggregate-sand-cement powder multicomponent of building rubbish stone is more abundant, makes it reach the effect of the separation that becomes more meticulous.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a schematic structural diagram of the present invention;

the reference numbers are as follows: 1. a support frame; 2. a peeling device; 21. a feed inlet; 22. a discharge port; 23. a central shaft; 34. stirring and stripping the net; 25. a bearing; 26. a support; 27. a stirring motor; 3. a screening device; 31. a screening outlet; 32. supporting legs; 33. a first vibrating screen; 34. a second vibrating screen; 35. a stock guide; 36. a vibration motor.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1, the aggregate-cement slurry stripping and screening device for waste concrete stones in the embodiment includes a stripping device 2 and a screening device 3, wherein the screening device 3 is disposed below the stripping device 2, and the stripping device 2 is fixedly mounted on a support frame 1. The stirring stripping net 24 is arranged in the stripping device 2, and the meshes of the stirring stripping net 24 are sequentially reduced from top to bottom. A vertical central shaft 23 is arranged at the center inside the stripping device 2, a stirring stripping net 24 is fixedly connected with the central shaft 23 through a shaft sleeve, the upper end of the central shaft 23 is fixedly connected with a stirring motor 27 above the top cover of the stripping device 2, and the lower end of the central shaft 23 is connected with a support 26 at the center of the bottom plate of the stripping device 2; a top cover of the stripping device 2 is provided with a feed inlet 21, and the right side of the bottom is provided with a discharge outlet 22; the upper end of the central shaft 23 is connected with the top cover of the stripping device 2 through a bearing 25; the lower end of the central shaft 23 is also connected to the support 26 by a bearing.

The screening device 3 is of an open barrel structure, three screening outlets 31 are sequentially arranged on the left side of the barrel wall from top to bottom, and a first vibrating screen 33, a second vibrating screen 34 and a material guide plate 35 are sequentially arranged at the screening outlets 31 from top to bottom; the bottom of the screening device 3 is also provided with a vibration motor 36. The first vibrating screen 33, the second vibrating screen 34 and the material guide plate 35 are parallel and inclined, the right end is higher than the left end, and the left end extends out of the screening outlet 31. The inclination angles of the first vibrating screen 33, the second vibrating screen 34 and the material guide plate 35 are 30 degrees. The diameter of the mesh of the first vibrating screen 33 is 5mm; the second vibrating screen 34 has a screen hole diameter of 0.365mm. The bottom of the screening device 3 is provided with support legs 32. The right ends of the first vibrating screen 33, the second vibrating screen 34 and the material guide plate 35 are provided with a supporting spring and an eccentric wheel, and a vibrating motor 36 is in transmission connection with the eccentric wheel.

The utility model discloses the object that the device was handled is the abandonment cement stone block after the breakage, and its stone is including the aggregate and the cement thick liquid piece of parcel mortar, and the particle diameter scope is 2.36 ~ 33mm, and the abandonment cement stone block is through 400 ~ 550 ℃ high temperature heating a period, and heating time is about 15 ~ 20 minutes.

The utility model discloses it peels off the net to be provided with the pivoted stirring inside stripping off device, stir inside aggregate, mesh top-down reduces in proper order, can make and carry out the layering grinding between the aggregate, it is more abundant to make to grind, the mortar on aggregate surface grinds and gets into screening plant after breaking away from, through vibrating motor and through the effect first, the second shale shaker, can be with aggregate classification screening and outside discharge, peel off through the layering and sieve twice, make to peel off more abundant, and the work efficiency is promoted.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides an aggregate-grout of abandonment concrete stone piece is peeled off and screening plant which characterized in that: the peeling device comprises a peeling device (2) and a screening device (3), wherein the screening device (3) is arranged below the peeling device (2), a stirring peeling net (24) is arranged inside the peeling device (2), a vertical central shaft (23) is arranged at the center inside the peeling device (2), the stirring peeling net (24) is fixedly connected with the central shaft (23) through a shaft sleeve, the upper end of the central shaft (23) is fixedly connected with a stirring motor (27) above a top cover of the peeling device (2), and the lower end of the central shaft (23) is connected with a support (26) at the center of a bottom plate of the peeling device (2); a feeding port (21) is arranged on the top cover of the stripping device (2), and a discharging port (22) is arranged at the right side of the bottom of the stripping device; the screening device (3) is of an open barreled structure, three screening outlets (31) are sequentially arranged on the left side of the barrel wall from top to bottom, and a first vibrating screen (33), a second vibrating screen (34) and a material guide plate (35) are sequentially arranged at the screening outlets (31) from top to bottom; and a vibration motor (36) is also arranged at the bottom of the screening device (3).

2. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the meshes of the stirring stripping net (24) are sequentially reduced from top to bottom.

3. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the upper end of the central shaft (23) is connected with the top cover of the stripping device (2) through a bearing (25); the lower end of the central shaft (23) is connected with the support (26) through a bearing.

4. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the stripping device (2) is fixedly arranged on the support frame (1).

5. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: and supporting legs (32) are arranged at the bottom of the screening device (3).

6. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the first vibrating screen (33), the second vibrating screen (34) and the material guide plate (35) are arranged in a parallel inclined mode, the right end of the first vibrating screen is higher than the left end of the first vibrating screen, and the left end of the first vibrating screen extends out of the screening outlet (31).

7. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the diameter of the screen hole of the first vibrating screen (33) is 3-5mm.

8. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the diameter of the screen hole of the second vibrating screen (34) is 0.5-1.0mm.

9. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 6, wherein: the inclination angles of the first vibrating screen (33), the second vibrating screen (34) and the material guide plate (35) are 30-45 degrees.

10. The aggregate-cement slurry stripping and screening apparatus for waste concrete stones of claim 1, wherein: the right ends of the first vibrating screen (33), the second vibrating screen (34) and the material guide plate (35) are provided with a supporting spring and an eccentric wheel, and the vibrating motor (36) is in transmission connection with the eccentric wheel.