Flotation device for light substances in construction waste

Abstract

The utility model discloses a flotation device for light objects in construction waste, which comprises a shell, a blanking port is arranged at the inner bottom of the shell, and a plurality of support frames are mounted at the lower end of the shell; the stirring mechanism comprises a rotating shaft rotationally connected between the inner walls of the left side and the right side of the bottom space of the shell, and a plurality of stirring rods are installed on the rotating shaft; the scraping mechanism comprises a rectangular plate arranged in the shell, the front side and the rear side of the rectangular plate are slidably connected with the front inner wall and the rear inner wall of the shell respectively, the lower end of the rectangular plate is fixedly connected with a rectangular sliding block, and the rear side of the rectangular sliding block is slidably connected with the inner wall of the rear side of the shell; and the moving mechanism is used for moving the rectangular plate. In the using process of the device, the flotation effect on light materials in waste can be improved, and in addition, by means of the scraping mechanism, follow-up collection work on the light materials is further facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste sorting, in particular to a flotation device for light objects in construction waste. Background Art

[0002] With the increasing awareness of environmental protection and the contradiction between the supply and demand of natural sand and gravel aggregates, how to achieve efficient utilization of construction waste has become the focus of research in the industry. Recycled aggregates from construction waste can replace natural sand and gravel aggregates as raw materials for cement products, but due to the current demolition habits and short demolition period, construction waste contains 1-5% lightweight materials (such as foam, wood chips, plastic bags, etc.), which seriously affects the workability and later strength of cement products;

[0003] At present, flotation is generally used to select these lightweight objects, that is, the waste is placed in the water, so that some materials with lower density will float to the surface of the water. However, in actual use, we found that some smaller lightweight objects are easily pressed to the bottom of the water by some larger construction waste and are difficult to float. The actual flotation selection efficiency is reduced, so how to solve this problem is what we need to consider. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a flotation device for lightweight materials in construction waste. During use, the device can improve the flotation effect of lightweight materials in the waste. In addition, the use of a scraping mechanism also facilitates the subsequent collection of lightweight materials.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A flotation device for lightweight materials in construction waste comprises a shell, the inner bottom of the shell is provided with a material discharge port, and the lower end of the shell is equipped with a plurality of support frames; a stirring mechanism, the stirring mechanism comprises a rotating shaft rotatably connected between the left and right inner walls of the bottom space of the shell, and a plurality of stirring rods are installed on the rotating shaft; a scraping mechanism, the scraping mechanism comprises a rectangular plate arranged inside the shell, the front and rear sides of the rectangular plate are respectively slidably connected to the front and rear inner walls of the shell, the lower end of the rectangular plate is fixedly connected with a rectangular slider, and the rear side of the rectangular slider is slidably connected to the rear inner wall of the shell; and a moving mechanism, the moving mechanism is used to move the rectangular plate.

[0007] Preferably, the rectangular plate is provided with a plurality of openings.

[0008] Preferably, the moving mechanism includes a motor installed on the left side of the shell, the output shaft of the motor extends into the shell and is fixedly connected to a reciprocating screw rod, the reciprocating screw rod passes through the rectangular slider and is threadedly connected to the rectangular slider.

[0009] Preferably, the right end of the reciprocating screw extends to the outside, the right end of the rotating shaft extends to the outside, the right end of the reciprocating screw and the right end of the rotating shaft are both equipped with pulleys, and the two pulleys are connected by a transmission belt.

[0010] Preferably, the inner bottom surface of the shell is an inclined surface inclined toward the middle.

[0011] Preferably, a manual valve is installed in the drop port.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] It is equipped with a stirring mechanism and a scraping mechanism, and only uses one motor as the driving source. After the motor is started, multiple stirring rods rotate to stir the construction waste at the bottom, avoiding the situation where some lightweight materials are pressed and unable to float up, thereby ensuring the flotation effect of lightweight materials. At the same time, the reciprocating screw will also rotate, causing the shape plate to reciprocate left and right, scraping the floating lightweight materials to the left and right sides of the upper surface of the water body, thereby achieving the aggregation of lightweight materials and facilitating the subsequent scooping by subsequent staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a flotation device for light objects in construction waste proposed by the utility model;

[0015] Figure 2 for Figure 1 The left schematic diagram of

[0016] Figure 3 for Figure 1 Schematic diagram of a partial cross section.

[0017] In the figure: 1 housing, 2 support frame, 3 pulley, 4 transmission belt, 5 reciprocating screw, 6 rectangular slider, 7 rectangular plate, 8 through port, 9 motor, 10 blanking port, 11 rotating shaft, 12 stirring rod. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Reference Figure 1-Figure 3 A flotation device for light materials in construction waste comprises a housing 1, a material drop opening 10 is arranged at the inner bottom of the housing 1, a manual valve is installed in the material drop opening 10, the inner bottom surface of the housing 1 is an inclined surface inclined toward the middle, and a plurality of support frames 2 are installed at the lower end of the housing 1;

[0020] The stirring mechanism includes a rotating shaft 11 rotatably connected between the inner walls on the left and right sides of the bottom space of the housing 1, and a plurality of stirring rods 12 are installed on the rotating shaft 11;

[0021] The scraping mechanism includes a rectangular plate 7 disposed inside the housing 1, a plurality of openings 8 are provided on the rectangular plate 7, the front and rear sides of the rectangular plate 7 are respectively slidably connected to the front and rear inner walls of the housing 1, a rectangular slider 6 is fixedly connected to the lower end of the rectangular plate 7, and the rear side of the rectangular slider 6 is slidably connected to the rear inner wall of the housing 1;

[0022] The moving mechanism is also included, and the moving mechanism is used to move the rectangular plate 7. The moving mechanism includes a motor 9 installed on the left side of the housing 1. The output shaft of the motor 9 extends into the housing 1 and is fixedly connected to a reciprocating screw rod 5. The reciprocating screw rod 5 passes through the rectangular slider 6 and is threadedly connected to the rectangular slider 6.

[0023] Among them, the right end of the reciprocating screw 5 extends to the outside, and the right end of the rotating shaft 11 extends to the outside. The right end of the reciprocating screw 5 and the right end of the rotating shaft 11 are both equipped with pulleys 3, and the two pulleys 3 are connected by a transmission belt 4. It should be noted that the output shaft of the motor 9, the reciprocating screw 5 and the rotating shaft 11 are all equipped with rotating sealing gaskets at the inner wall of the shell 1 to ensure the rotation sealing.

[0024] In the utility model, water is firstly added into the housing 1, and then construction waste is added until the height of the water surface is near the middle part of the rectangular plate 7, and then the motor 9 is started. The start of the motor 9 will drive the reciprocating screw 5 to rotate, so that the rotating shaft 11 is rotated through the cooperation of the two pulleys 3, and finally the multiple stirring rods 12 are rotated to stir the construction waste at the bottom, so as to avoid the situation that some lightweight materials are pressed and cannot float, thereby ensuring the flotation effect of the lightweight materials;

[0025] In addition, the rotation of the reciprocating screw 5 will drive the rectangular slider 6 to move left and right, so that the rectangular plate 7 can reciprocate left and right, so that the floating light materials can be scraped to the left and right sides of the upper surface of the water body, so as to achieve the gathering of light materials and facilitate the subsequent scooping of the staff;

[0026] It should be noted that the thread density on the reciprocating screw 5 is small and the rotation speed of the motor 9 is slow, so the moving speed of the rectangular plate 7 stirs and generates a small water flow, avoiding the situation where the light water flow is large and the light materials gathered on both sides are dispersed again.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A flotation device for light materials in construction waste, characterized by: It comprises a shell (1), the inner bottom of the shell (1) is provided with a material drop opening (10), and the lower end of the shell (1) is provided with a plurality of support frames (2); A stirring mechanism, the stirring mechanism comprising a rotating shaft (11) rotatably connected between left and right inner walls of the bottom space of the shell (1), and a plurality of stirring rods (12) are mounted on the rotating shaft (11); A scraping mechanism, the scraping mechanism comprising a rectangular plate (7) arranged inside the housing (1), the front and rear sides of the rectangular plate (7) being slidably connected to the front and rear inner walls of the housing (1) respectively, the lower end of the rectangular plate (7) being fixedly connected to a rectangular slider (6), the rear side of the rectangular slider (6) being slidably connected to the rear inner wall of the housing (1); A moving mechanism, wherein the moving mechanism is used to move the rectangular plate (7).

2. A flotation device for light materials in construction waste according to claim 1, characterized in that: The rectangular plate (7) is provided with a plurality of openings (8).

3. The flotation device for light materials in construction waste according to claim 1, characterized in that: The moving mechanism comprises a motor (9) mounted on the left side of the housing (1); an output shaft of the motor (9) extends into the interior of the housing (1) and is fixedly connected to a reciprocating screw rod (5); the reciprocating screw rod (5) passes through a rectangular slider (6) and is threadedly connected to the rectangular slider (6).

4. A flotation device for light materials in construction waste according to claim 3, characterized in that: The right end of the reciprocating screw rod (5) extends to the outside, and the right end of the rotating shaft (11) extends to the outside. The right ends of the reciprocating screw rod (5) and the rotating shaft (11) are both equipped with pulleys (3), and the two pulleys (3) are connected by a transmission belt (4).

5. The flotation device for light materials in construction waste according to claim 1, characterized in that: The inner bottom surface of the shell (1) is an inclined surface inclined toward the middle.

6. A flotation device for light materials in construction waste according to claim 5, characterized in that: A manual valve is installed in the drop port (10).

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