WO2021042424A1

WO2021042424A1 - Waste concrete gravel screening and cleaning tank

Info

Publication number: WO2021042424A1
Application number: PCT/CN2019/107729
Authority: WO
Inventors: 殷大伟
Original assignee: 南京市金越新型建材有限公司
Priority date: 2019-09-04
Filing date: 2019-09-25
Publication date: 2021-03-11
Also published as: CN210816108U

Abstract

A waste concrete gravel screening and cleaning tank, comprising an external connection housing (1) and an internal screening and cleaning tank (2). The right side end of the connection housing (1) is connected to a conveying section, and a screening plate (3) is provided between the right side end and the screening and cleaning tank (2); the inner side of the screening and cleaning tank (2) is divided into an upper screening region (21) and a lower screening region (22), and the sizes of screen holes in the screening plate (3) corresponding to the regions are different; a spiral blade turbulence structure (4) is provided at the bottom of the upper screening region (21) and the bottom of the lower screening region (22) and is connected to a first motor (6) on the connection housing (1); the upper screening region (21) and the lower screening region (22) are each provided with an auger (7) inclinedly, and a discharge port (8) is provided at the top of the auger; the auger (7) is connected to a second motor (10) outside a discharge end housing (9). During the cleaning of the cleaning tank, waste concrete gravel cleaning and separation can be effectively carried out, and the gravel can be preliminarily screened, thereby reducing recycling costs; moreover, the overall structure is simple, and the separation effect is good.

Description

Waste concrete gravel screening and cleaning box

Technical field

The utility model relates to the field of concrete cleaning, in particular to a waste concrete sand and gravel screening cleaning box.

Background technique

With the vigorous development of my country's construction industry, concrete is widely used in various buildings, and equipment such as concrete mixing trucks, concrete mixing plants and concrete mixing buildings need to be cleaned and maintained after a day's work is over.

Under normal circumstances, the mixer truck is cleaned everywhere, and the sand, gravel, slurry and water are not separated. This method will pollute the underground water source and block the urban sewer pipes, which does not meet the environmental protection requirements. A lot of waste of resources.

At present, the waste concrete in domestic mixing plants is mainly cleaned and recycled by sand and gravel separators, and drum-type cleaning and screening are mostly used. This has certain drawbacks in the cleaning effect of separation and cleaning, and it is directly accumulated after separation, and there is a certain degree of accumulation. The possibility of pulp.

In addition, when the waste concrete is cleaned, the direct accumulation of sand and gravel needs to be screened when it is reused in the later stage, which increases the process and cost.

Utility model content

In order to solve the above problems, the utility model provides a waste concrete sand and gravel screening cleaning box. During cleaning, the waste concrete sand and gravel cleaning and separation can be effectively carried out, and the sand and gravel can be preliminarily screened, and the recycling cost can be reduced. And the overall structure is simple, and the separation effect is good.

In order to achieve the above-mentioned purpose, the technical solution adopted by the present utility model is: a waste concrete sand and gravel screening and cleaning box, which includes an outer connecting shell and an inner screening and cleaning box, and the right end of the connecting shell is connected to the conveying section. And a sieve plate is provided between the side end and the screening cleaning box;

The inside of the screening cleaning box is divided into an upper sieve area and a lower sieve area, and the corresponding sieve plate has a different sieve hole size;

The spiral blade turbulent flow structure is arranged at the bottom of the upper sieve area and the lower sieve area and is connected with the first motor on the connecting shell;

The upper sieve area and the lower sieve area are both inclinedly provided with augers, and the topmost part is provided with a discharge opening, and the auger is connected with the second motor outside the discharge end shell.

Further, the upper sieve area and the lower sieve area communicate with water, and the inner bottom is inclined toward the screw auger.

Further, the bottom of the screening and cleaning box is provided with filter holes.

Further, the discharge end shell is provided with a waterway flushing interface, and the top end of the connecting shell is provided with an overflow port.

In summary, the utility model has the following advantages:

The utility model can effectively carry out the cleaning and separation of waste concrete sand and gravel during the cleaning, and can also carry out preliminary screening of the sand and gravel, reduce the recycling cost, and has a simple overall structure and good separation effect.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the utility model;

Fig. 2 is a schematic cross-sectional view of A-A in Fig. 1.

detailed description

The following describes the utility model further in conjunction with the drawings and embodiments:

Example 1:

A waste concrete gravel screening and cleaning box, as shown in Figure 1-2, includes an outer connecting shell 1 and an inner screening and cleaning box 2, connecting the right side of the shell 1 to the conveying section, and A sieve plate 3 is provided between the side end and the screening and cleaning box 2.

Specifically, the residual concrete from the waste gas of the concrete truck is introduced into the conveying section, and the conveying section will first wash it with water.

The screening and cleaning box 2 is the main stage of cleaning, and its inner side is divided into an upper sieve area 21 and a lower sieve area 22, and the corresponding sieve plate 3 has a different upper sieve hole size.

That is, the conveying section screens the pre-cleaned concrete final sand and gravel through the sieve plate 3, and different gradations enter different sieve areas, and turbulent flow cleaning is performed in the sieve area.

The spiral blade turbulent flow structure 4 is arranged at the bottom of the upper sieve area 21 and the lower sieve area 22 and is connected to the first motor 6 on the connection housing 1.

On the outer row of sand and gravel, the upper sieve area 21 and the lower sieve area 22 are both inclinedly provided with augers 7, and the top is provided with a discharge port 8, the auger 7 and the second motor outside the discharge end shell 9 10Connect.

Preferably, the upper sieve area 21 and the lower sieve area 22 communicate with water, and the inner bottom is inclined toward the screw auger. This arrangement can facilitate the discharge of sand and gravel, and the bottom of the screening and cleaning box 2 is provided with a filter hole 23 at the bottom.

The auger 7 is connected to the near bottom side of the screen area, and there is a certain distance from the spiral blade turbulent flow structure 4. Therefore, in the entire screening and cleaning box, the liquid is in a turbulent state and the cleaning is completed, while the sand and gravel are 7 is passed up and discharged from the discharge port 8 at the top of the discharge end shell 9.

The discharge end shell 9 is provided with a waterway flushing interface 91 as the final cleaning stage before sand and gravel is removed, and the top end of the connecting shell 1 is provided with an overflow port 11 to prevent interference of the water in the cleaning tank.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present utility model, and their purpose is to enable people familiar with the technology to understand the content of the present utility model and implement them accordingly, and cannot limit the protection scope of the present utility model. All equivalent changes or modifications made according to the spirit of the utility model shall be covered by the protection scope of the utility model.

In the description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection or an optional connection. Detachable connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication between two components.

For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present utility model can be understood under specific circumstances.

In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" means two or more.

In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

It is easily understood by those skilled in the art that the above-mentioned preferred solutions can be freely combined and superimposed on the premise of no conflict.

It should be understood that the above-mentioned embodiments are only exemplary and not restrictive. Without departing from the basic principles of the present invention, those skilled in the art can make various obvious or equivalent details regarding the above-mentioned details. Modifications or replacements of will be included in the scope of the claims of the present invention.

Claims

A waste concrete sand and gravel screening and cleaning box, which is characterized in that it comprises an outer connecting shell (1) and an inner screening and cleaning box (2), and the right end of the connecting shell (1) is connected to a conveying section , And a sieve plate (3) is provided between the side end and the screening cleaning box (2);

The inside of the screening and cleaning box (2) is divided into an upper sieve area (21) and a lower sieve area (22), and the corresponding upper sieve holes of the sieve plate (3) have different sizes;

The spiral blade turbulent flow structure (4) is arranged at the bottom of the upper sieve area (21) and the lower sieve area (22) and is connected to the first motor (6) on the connecting housing (1);

The upper sieve area (21) and the lower sieve area (22) are both inclinedly provided with augers (7), and the topmost part is provided with a discharge port (8), the augers (7) and the discharge end shell (9) The outer second motor (10) is connected.
The waste concrete gravel screening and cleaning box according to claim 1, wherein the upper sieve area (21) and the lower sieve area (22) communicate with each other in water flow, and the inner bottom faces the screw auger (7). The direction is inclined.
The waste concrete sand and gravel screening and cleaning box according to claim 2, characterized in that: the bottom of the screening and cleaning box body (2) is provided with filter holes (23).
The waste concrete gravel screening and cleaning box according to claim 1, wherein the discharge end shell (9) is provided with a waterway flushing interface (91), and the top side of the connecting shell (1) An overflow port (11) is provided at the end.