Garbage conveying device for household garbage landfill

Abstract

The utility model relates to a garbage conveying device for a household garbage landfill, which relates to the technical field of garbage treatment equipment and comprises a conveying flow channel, a hot air generating mechanism is arranged at the position of an air inlet at the front end of the conveying flow channel and comprises a fan, and a heating cylinder is arranged at the output end of the fan. A plurality of sets of fin type electric heating pipes are installed in the heating cylinder, garbage is conveyed along with hot air, the water content of the garbage is effectively reduced, meanwhile, part of heat-labile bacterial viruses can be killed, and the requirement limitation of the pneumatic conveying device on the material humidity is widened. A spiral feeding mechanism is arranged at the position of a feeding opening in the top of the front section of the conveying flow channel and comprises a feeding barrel, a transverse rotating shaft is installed in the feeding barrel, fan blades are arranged around the rotating shaft, the rotating shaft is in transmission connection with a driving motor, garbage falling into the intervals of the adjacent fan blades sequentially falls into the conveying flow channel through rotation of the fan blades, feeding is continuous and stable, and uniform feeding is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of waste treatment equipment, and in particular to a waste conveying device for municipal solid waste landfills. Background Technology

[0002] In the process of modern municipal solid waste landfill treatment, efficient waste transportation is a key link to achieve large-scale treatment. Most existing waste transportation devices use pneumatic conveying devices, in which materials are transported to designated locations under the action of airflow.

[0003] Existing pneumatic conveying devices have some drawbacks. During the conveying process, due to the high moisture and viscosity of domestic waste, it tends to stick and clog the conveying channels, which greatly affects the conveying efficiency. At the same time, it is difficult to achieve uniform conveying of domestic waste during the conveying process, which cannot meet the needs of modern domestic waste landfills for large-scale and efficient waste treatment. Utility Model Content

[0004] In order to improve the problems caused by waste transportation in the above-mentioned background art, this utility model provides a waste transportation device for municipal solid waste landfills.

[0005] The present invention provides a waste conveying device for municipal solid waste landfills, which adopts the following technical solution:

[0006] A waste conveying device for a municipal solid waste landfill includes a conveying channel, an air inlet at the front end of the conveying channel, a hot air generating mechanism at the air inlet, a feed inlet at the top of the front section of the conveying channel, a screw feeding mechanism at the feed inlet, and a centrifugal unloader at the end of the conveying channel.

[0007] Preferably, the hot air generating mechanism includes a fan, and a heating cylinder is provided at the output end of the fan. Multiple sets of finned electric heating tubes are installed inside the heating cylinder.

[0008] Preferably, the screw feeding mechanism includes a feed cylinder, which is fixedly installed at the feed inlet. A transverse rotating shaft is installed inside the feed cylinder, and fan blades are arranged around the rotating shaft. The rotating shaft is connected to a drive motor for transmission.

[0009] Preferably, the conveying channel is inclined from one end of the inlet toward the end of the conveying channel, and the inlet is raised so that its horizontal height is higher than that of the end of the conveying channel.

[0010] Preferably, a guide plate is arranged around the inside of the conveying channel, and the guide plate is arranged around the airflow direction output by the hot air generating mechanism.

[0011] Preferably, the inner wall of the conveying channel is coated with an anti-stick coating.

[0012] Preferably, a temperature sensor and a thermal flow rate sensor are installed inside the conveying channel. Both the temperature sensor and the thermal flow rate sensor are electrically connected to a controller installed outside the conveying channel. The controller is electrically connected to a hot air generating mechanism.

[0013] In summary, this utility model has the following beneficial technical effects:

[0014] 1. This utility model uses a pneumatic conveying device to transport garbage. A hot air generating mechanism is set at the air inlet. The garbage is transported along with the hot air, which effectively reduces the moisture content of the garbage. At the same time, it can also kill some heat-sensitive bacteria and viruses, thus expanding the limitations of the pneumatic conveying device on the moisture content of materials.

[0015] 2. This utility model installs a screw feeding mechanism at the inlet. The garbage falling into the adjacent fan blade area falls into the conveying channel in sequence after the fan blades rotate, so the feeding is continuous and stable, achieving uniform feeding and reducing the occurrence of blockage. Attached Figure Description

[0016] Figure 1 This is a partial structural perspective view of the hot air generating mechanism according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the spiral feeding mechanism according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the centrifugal unloader according to an embodiment of the present invention;

[0019] Figure 4 This is a perspective view of the spiral feeding mechanism according to an embodiment of the present invention;

[0020] Figure 5 This is a perspective view of the conveying channel according to an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached drawings: 1. Conveying channel; 2. Air inlet; 3. Hot air generating mechanism; 4. Feed inlet; 5. Screw feeder; 6. Centrifugal unloader; 7. Fan; 8. Heating cylinder; 9. Finned electric heating tube; 10. Feed cylinder; 11. Rotating shaft; 12. Fan blades; 13. Drive motor; 14. Guide plate; 15. Anti-stick coating; 16. Temperature sensor; 17. Thermal flow rate sensor; 18. Controller. Detailed Implementation

[0022] The following combination Figures 1-5 The present invention will be described in further detail below.

[0023] This utility model discloses a waste conveying device for municipal solid waste landfills.

[0024] Reference Figure 1 , Figure 2 , Figure 3 A waste conveying device for a municipal solid waste landfill includes a conveying channel 1, an air inlet 2 at the front end of the conveying channel 1, a hot air generating mechanism 3 at the air inlet 2, a feeding inlet 4 at the top of the front section of the conveying channel 1, a screw feeding mechanism 5 at the feeding inlet 4, and a centrifugal unloader 6 at the end of the conveying channel 1. The centrifugal unloader 6 uses centrifugal force to separate the material mixed in the airflow from the airflow and unload the waste in the conveying channel 1.

[0025] Reference Figure 1 The hot air generating mechanism 3 includes a fan 7, and a heating cylinder 8 is provided at the output end of the fan 7. Multiple sets of finned electric heating tubes 9 are installed inside the heating cylinder 8. The heating cylinder 8 can quickly heat the air output by the fan 7. The heated hot air enters the conveying channel 1, and the garbage is conveyed with the hot air. The moisture content of the garbage is greatly reduced, and it can also kill some heat-sensitive bacteria and viruses. The fan 7 serves as an air source device, and the conveying pressure of the fan 7 is between 10 kPa and 50 kPa. An air compressor can also be used.

[0026] By setting up a hot air generating mechanism 3, the pneumatic conveying device's requirements for the humidity of the conveyed material are broadened. Compared with traditional pneumatic conveying devices, which are limited by the flowability of the material and require the material moisture content to be less than 10%, otherwise it is easy to cause pipe adhesion, blockage, or even system shutdown, the garbage in this utility model is conveyed together with the hot air. After being fully dried by the hot air, the surface moisture content of the garbage is reduced, thereby significantly improving the flowability and broadening the applicable humidity range of the conveyed material to 0-25%.

[0027] Reference Figure 2 , Figure 4 The screw feeding mechanism 5 includes a feeding cylinder 10, which is fixedly installed at the feeding port 4. A transverse rotating shaft 11 is installed inside the feeding cylinder 10, and fan blades 12 are arranged around the rotating shaft 11. The rotating shaft 10 is connected to the drive motor 13. The drive motor 13 is connected to the rotating shaft 10 through a transmission mechanism such as a transmission shaft and gears, driving the rotating shaft 11 to rotate. The waste falls into the space between adjacent fan blades 12 in sequence, and then falls into the conveying channel 1 in sequence after the fan blades 12 rotate. The feeding is continuous and stable, achieving uniform feeding.

[0028] Reference Figure 1 , Figure 2 , Figure 3 The conveying channel 1 is inclined from one end of the inlet 4 toward the end of the conveying channel 1. The inlet 4 is raised and its horizontal height is higher than the horizontal height of the end of the conveying channel 1, thereby improving the speed and efficiency of conveying.

[0029] Reference Figure 1 , Figure 5 Inside the conveying channel 1, a guide plate 14 is arranged around the airflow direction output by the hot air generating mechanism 3. The guide plate 14 guides the airflow to flow in a spiral shape inside the conveying channel 1, forming a vortex to increase the flow speed.

[0030] Reference Figure 5 The inner wall of the conveying channel 1 is coated with an anti-sticking layer 15 to prevent some high-humidity garbage from sticking to the inner wall of the conveying channel 1.

[0031] Reference Figure 5 A temperature sensor 16 and a thermal flow rate sensor 17 are installed inside the conveying channel 1. Both the temperature sensor 16 and the thermal flow rate sensor 17 are electrically connected to a controller 18 located outside the conveying channel 1. The controller 18 is electrically connected to the hot air generating mechanism 3. The temperature sensor 16 and the thermal flow rate sensor 17 detect temperature information and airflow velocity information, respectively, and transmit this information to the controller 18 in the form of electrical signals. The controller 18 receives the electrical signals and provides feedback, controlling the start / stop and output level of the fan 7 of the hot air generating mechanism 3 to achieve automated operation.

[0032] The working principle of this utility model embodiment is as follows: The operator operates the controller 18 to turn on the fan 7, and the air output by the heating fan 7 is heated by the heating cylinder 8. The domestic waste is broken up by the screw feeding mechanism 5 and falls into the conveying channel 1. It is conveyed by the airflow. The hot air reduces the moisture content of the waste and kills some heat-sensitive bacteria and viruses. When it reaches the conveying position, the centrifugal unloader 6 at the end of the conveying channel 1 uses centrifugal force to separate the material mixed in the airflow from the airflow and unload the waste in the conveying channel 1.

[0033] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A refuse conveying device for a domestic waste landfill site, characterised in that: It includes a conveying channel (1), an air inlet (2) is provided at the front end of the conveying channel (1), a hot air generating mechanism (3) is provided at the air inlet (2), a feed inlet (4) is provided at the top of the front section of the conveying channel (1), a screw feeder (5) is provided at the feed inlet (4), and a centrifugal unloader (6) is provided at the end of the conveying channel (1).

2. The waste conveying apparatus for a municipal solid waste landfill site according to claim 1, wherein: The hot air generating mechanism (3) includes a fan (7), and a heating cylinder (8) is provided at the output end of the fan (7). Multiple sets of finned electric heating tubes (9) are installed inside the heating cylinder (8).

3. The waste conveying device for a municipal solid waste landfill site according to claim 1, characterized in that: The spiral feeding mechanism (5) includes a feed cylinder (10), which is fixedly installed at the feed inlet (4). A transverse rotating shaft (11) is installed inside the feed cylinder (10), and fan blades (12) are arranged around the rotating shaft (11). The rotating shaft (11) is connected to the drive motor (13) for transmission.

4. A waste conveying device for a municipal solid waste landfill according to claim 1, characterized in that: The conveying channel (1) is inclined from one end of the feed inlet (4) toward the end of the conveying channel (1), and the feed inlet (4) is raised and its horizontal height is higher than the horizontal height of the end of the conveying channel (1).

5. The waste conveying apparatus for a municipal solid waste landfill site according to claim 1, wherein: The conveying channel (1) is surrounded by a guide plate (14), which is arranged around the airflow direction output by the hot air generating mechanism (3).

6. A waste conveying device for a municipal solid waste landfill according to claim 1, characterized in that: The inner wall of the conveying channel (1) is coated with an anti-stick coating (15).

7. The waste conveying apparatus for a municipal solid waste landfill site according to claim 1, wherein: A temperature sensor (16) and a thermal flow rate sensor (17) are provided in the conveying channel (1). Both the temperature sensor (16) and the thermal flow rate sensor (17) are electrically connected to a controller (18) located outside the conveying channel (1). The controller (18) is electrically connected to a hot air generating mechanism (3).

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