Sand making machine utilizing construction waste

Abstract

The utility model discloses a sand making machine utilizing construction waste, which is characterized in that a box body is convenient to move by arranging rollers, then a coarse crushing mechanism and a fine crushing mechanism are respectively arranged to perform graded crushing on the construction waste, and a screening mechanism consisting of a fan and a magnet is arranged between the coarse crushing mechanism and the fine crushing mechanism. The screening mechanism can separate metal impurities from light impurities such as plastic and wood chips, fine-crushed sand and stones enter the cleaning cavity to be washed, and the washed sand and stones are discharged from the discharging port through the discharging mechanism, so that the sand making machine is convenient to transport, can perform multi-stage crushing, is high in crushing efficiency, can automatically separate impurities in the sand and stones, and is high in practicability. The labor intensity of workers is reduced, and the workers can conveniently clean impurities.

Description

Technical Field

[0001] The utility model relates to the field of sand making, and more specifically, to a sand making machine utilizing construction waste. Background Art

[0002] Mortar is a commonly used material in construction. Mortar is composed of inorganic cementitious materials (such as cement), fine aggregate (usually sand), water, and sometimes added admixtures (such as lime paste, fly ash, etc.). Sand and gravel are important raw materials for mortar.

[0003] In order to reduce production costs and recycle resources, many companies have begun to use construction waste for sand making. However, traditional sand making equipment is bulky and inconvenient to transport, and the transportation cost of transporting construction waste back and forth is high. In order to solve this problem, some small sand making machines that are easy to move have emerged and can be used to make sand on construction sites. However, these small sand making machines often only have crushing and sand making functions and cannot effectively classify and remove impurities in construction waste, resulting in more impurities in the produced sand and gravel, which require manual screening and removal of impurities. If these impurities are not removed, the quality of the building will be affected to a certain extent.

[0004] Based on the above, the purpose of the present invention is to provide a sand making machine that utilizes construction waste to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a sand making machine that utilizes construction waste. The present invention facilitates the movement of the box by arranging rollers, and then separately arranges a coarse crushing mechanism and a fine crushing mechanism to grade and crush the construction waste. A screening mechanism composed of a fan and a magnet is then arranged between the two. The screening mechanism can separate metal impurities from light impurities such as plastics and wood chips. The finely crushed sand and gravel will enter the cleaning chamber for water washing, and will be discharged from the discharge port through the discharge mechanism after water washing.

[0006] The above technical objectives of the present utility model are achieved through the following technical solutions: A sand making machine utilizing construction waste, comprising a box body, a plurality of rollers provided on the box body, a feed port and a discharge port provided on the box body, a coarse crushing mechanism for crushing the construction waste into large particles provided on the side of the box body close to the feed port, a fine crushing mechanism for crushing the construction waste into small particles provided below the coarse crushing mechanism, a screening mechanism provided between the coarse crushing mechanism and the fine crushing mechanism, the screening mechanism including a fan and an electromagnet, a storage chamber provided on the side of the box body away from the fan, a cleaning chamber for cleaning sand and gravel provided at the lower end of the fine crushing mechanism, and a discharge mechanism for discharging sand and gravel from the discharge port provided in the cleaning chamber.

[0007] By adopting the above technical solution, when it is necessary to make sand from construction waste, the box is pulled to the construction site by rollers, water is injected into the cleaning chamber, and the construction waste is poured into the feed port through tools such as excavators. The construction waste will first be crushed into large particles by the coarse crushing mechanism. In the process of falling construction waste, the fan will blow light impurities such as plastic, wood, and paper scraps in the construction waste into the storage chamber, and the electromagnet will adsorb metal impurities on it. The remaining construction waste will then fall into the fine crushing mechanism, and the fine crushing mechanism will crush the construction waste into usable small particles of sand and gravel. These sand and gravel will slide into the cleaning chamber, and clean water will remove the soil on the sand and gravel, and then the cleaned sand and gravel will be discharged through the discharge port through the discharge mechanism.

[0008] The utility model is further configured as follows: the discharging mechanism includes a driving shaft and a rotating ring rotatably connected to the box body; the driving shaft is provided with a plurality of screen frames with one end fixedly connected thereto; the other end of the screen frame is fixedly connected to the rotating ring; a receiving hopper is fixedly connected to the discharge port, and the material receiving hopper is arranged in an inclined manner; a motor 1 is provided on the box body, and the output shaft of the motor 1 is fixedly connected to the driving shaft.

[0009] The utility model is further configured as follows: the coarse crushing mechanism and the fine crushing mechanism each include two relatively rotating crushing rollers, the crushing rollers are rotatably connected to the box body, and the spacing between the crushing rollers in the fine crushing mechanism is smaller than that in the coarse crushing mechanism.

[0010] The present invention is further configured as follows: the storage chamber is communicated with the cleaning chamber, a filter plate is provided between the storage chamber and the cleaning chamber, a second motor is provided on the box body, a rotating shaft with one end fixedly connected to the output shaft of the second motor is provided, a scraper is fixedly connected to the other end of the rotating shaft, and the scraper abuts against the filter plate.

[0011] The utility model is further configured as follows: the box body is rotatably connected with a warehouse door at the corresponding positions of the electromagnet and the storage cavity.

[0012] In summary, the present invention has the following beneficial effects:

[0013] The utility model provides a roller to facilitate the movement of the box, and then respectively provides a coarse crushing mechanism and a fine crushing mechanism to crush the construction waste in grades, and then a screening mechanism composed of a fan and a magnet is provided between the two. The screening mechanism can separate metal impurities from light impurities such as plastic and wood chips. The sand and gravel that have completed fine crushing will enter the cleaning chamber for water washing, and will be discharged from the discharge port through the discharging mechanism after completing water washing. With this arrangement, the sand making machine is easy to transport, can perform multi-stage crushing, has high crushing efficiency, and can automatically separate impurities in sand and gravel, thereby reducing the labor intensity of workers and making it convenient for workers to clean up impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of this utility model patent Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the structure of this utility model patent Figure 2 .

[0016] In the figure: 1. Box body; 2. Roller; 3. Feed port; 4. Discharge port; 5. Coarse crushing mechanism; 6. Fine crushing mechanism; 7. Fan; 8. Electromagnet; 9. Storage chamber; 10. Cleaning chamber; 11. Drive shaft; 12. Rotating ring; 13. Screen frame; 14. Hopper; 15. Crushing roller; 16. Filter plate; 17. Motor 1; 18. Motor 2; 19. Rotating shaft; 20. Scraper; 21. Bin door; 22. Water inlet pipe; 23. Water outlet pipe. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, unless there is a conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and 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. Therefore, they cannot be understood as limitations on the present invention.

[0019] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood by those skilled in the art in specific circumstances.

[0020] The present invention will be described in detail below with reference to the accompanying drawings.

[0021] A sand making machine that utilizes construction waste, such as Figure 1-Figure 2As shown, it includes a box body 1, which is fixedly connected to a trailer hook and rotatably connected to several rollers 2. A feed port 3 and a discharge port 4 are provided on the box body 1. A coarse crushing mechanism 5 for crushing construction waste into large particles is provided on the side of the box body 1 close to the feed port 3. A fine crushing mechanism 6 for crushing construction waste into small particles is provided below the coarse crushing mechanism 5. A screening mechanism is provided between the coarse crushing mechanism 5 and the fine crushing mechanism 6. The screening mechanism includes a fan 7 and an electromagnet 8. The fan is fixedly connected to the box body. A storage chamber 9 is provided on the side of the box body 1 away from the fan 7. A cleaning chamber 10 for cleaning sand and gravel is provided at the lower end of the fine crushing mechanism 6. A discharge mechanism for discharging sand and gravel from the discharge port 4 is provided in the cleaning chamber 10. A water inlet pipe and a water outlet pipe are provided in the cleaning chamber, and a valve is installed on the water outlet pipe.

[0022] Furthermore, the discharge mechanism includes a drive shaft 11 and a rotating ring 12 rotatably connected to the box body 1. The drive shaft 11 is provided with several screen frames 13, one end of which is fixedly connected thereto. The screen frame is a frame similar to a dustpan made of a metal filter plate. The opening of the screen frame faces the discharge port. The other end of the screen frame 13 is fixedly connected to the rotating ring 12. A receiving hopper 14 is fixedly connected to the discharge port 4, and the material receiving hopper is arranged at an angle. A motor 17 is installed on the box body 1, and the output shaft of the motor 17 is fixedly connected to the drive shaft 11.

[0023] Furthermore, the coarse crushing mechanism 5 and the fine crushing mechanism 6 each include two relatively rotating crushing rollers 15, which are rotatably connected to the box body 1. The spacing between the crushing rollers 15 in the fine crushing mechanism 6 is smaller than that in the coarse crushing mechanism 5. The crushing rollers can be driven to rotate by a motor or a drive structure composed of a motor and gears.

[0024] Furthermore, the storage chamber 9 is connected to the cleaning chamber 10, a filter plate 16 is installed between the storage chamber 9 and the cleaning chamber 10, a motor 2 18 is installed on the box body 1, and a rotating shaft 19 is provided on the output shaft of the motor 2 18, one end of which is fixedly connected to the output shaft, and a scraper 20 is fixedly connected to the other end of the rotating shaft 19, and the scraper 20 abuts against the filter plate 16.

[0025] Furthermore, the box body is rotatably connected to the compartment door 21 at the corresponding positions of the electromagnet 8 and the storage cavity 9, and the electromagnet can also be installed on the compartment door to facilitate cleaning of metal impurities on the electromagnet.

[0026] Working principle: When it is necessary to make sand from construction waste, the box body 1 is pulled to the construction site by a motor vehicle, a trailer hook and a roller 2, and then clean water is injected into the cleaning chamber 10 through the water inlet pipe 22, and then the construction waste is poured into the feed port 3 through an excavator or other tool. The construction waste will first be crushed into large particles by the two crushing rollers 15 in the coarse crushing mechanism. In the process of falling of the construction waste, the fan 7 will blow the light impurities such as plastic, wood, and paper scraps in the construction waste into the storage chamber 9 by creating a strong airflow. A filter screen can be installed on the side of the box body 1 close to the storage chamber 9, and the air flow is discharged from the filter screen to prevent the strong airflow from swirling in the storage chamber 9 and bringing impurities back. The motor 2 will stir the impurities on the filter plate through the rotating shaft and scraper. The fine sand and gravel mixed in the impurities can pass through the filter plate and enter the cleaning chamber, and the electromagnet 8 will adsorb the metal impurities on it. After the sand making operation is completed, the metal impurities and impurities in the storage chamber 9 can be cleaned by opening the bin door 21.

[0027] The remaining construction waste falls into the fine crushing mechanism, and the two crushing rollers 15 in the fine crushing mechanism crush the construction waste into usable small particles of sand and gravel. These sand and gravel will slide into the cleaning chamber 10, and clean water will wash away the dirt on the sand and gravel. The drive shaft 11 will drive the screen frame 13 to rotate. During the rotation of the screen frame 13, the sand and gravel in the cleaning chamber 10 will be driven to move until the sand and gravel are separated from the water. When the screen frame 13 rotates to a certain angle, the sand and gravel in the screen frame 13 will slide to the receiving hopper 14 due to gravity, and then be discharged from the discharge port 4 along the trajectory of the receiving hopper 14. The muddy water in the cleaning chamber 10 can be discharged through the outlet pipe 23.

[0028] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A sand making machine using construction waste, comprising a box (1), a plurality of rollers (2) provided on the box (1), a feed port (3) and a discharge port (4) provided on the box (1), characterized in that: A coarse crushing mechanism (5) for crushing construction waste into large particles is provided on one side of the box body (1) close to the feed port (3), a fine crushing mechanism (6) for crushing construction waste into small particles is provided below the coarse crushing mechanism (5), a screening mechanism is provided between the coarse crushing mechanism (5) and the fine crushing mechanism (6), the screening mechanism comprising a fan (7) and an electromagnet (8), a storage chamber (9) is provided on one side of the box body (1) away from the fan (7), a cleaning chamber (10) for cleaning sand and gravel is provided at the lower end of the fine crushing mechanism (6), and a discharge mechanism for discharging sand and gravel from the discharge port (4) is provided in the cleaning chamber (10).

2. A sand making machine utilizing construction waste according to claim 1, characterized in that: The discharge mechanism comprises a drive shaft (11) and a rotating ring (12) rotatably connected to the box body (1); a plurality of screen frames (13) are provided on the drive shaft (11), one end of which is fixedly connected to the drive shaft; the other end of the screen frame (13) is fixedly connected to the rotating ring (12); a receiving hopper (14) is fixedly connected to the discharge port (4); the receiving hopper is arranged in an inclined manner; a motor (17) is provided on the box body (1); the output shaft of the motor (17) is fixedly connected to the drive shaft (11).

3. A sand making machine using construction waste according to claim 2, characterized in that: The coarse crushing mechanism (5) and the fine crushing mechanism (6) both comprise two relatively rotating crushing rollers (15), the crushing rollers (15) being rotatably connected to the box (1), and the spacing between the crushing rollers (15) in the fine crushing mechanism (6) is smaller than that in the coarse crushing mechanism (5).

4. The sand making machine using construction waste according to claim 1, characterized in that: The storage chamber (9) is connected to the cleaning chamber (10), and a filter plate (16) is provided between the storage chamber (9) and the cleaning chamber (10). A second motor (18) is provided on the box body (1), and a rotating shaft (19) is provided on the output shaft of the second motor (18), one end of which is fixedly connected to the output shaft, and a scraper (20) is fixedly connected to the other end of the rotating shaft (19), and the scraper (20) abuts against the filter plate (16).

5. The sand making machine using construction waste according to claim 1, characterized in that: The box body (1) is rotatably connected with a bin door (21) at corresponding positions of the electromagnet (8) and the storage cavity (9).

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