Roller screening device for high-humidity garbage soil

Abstract

The utility model discloses a high-humidity garbage soil roller screening device which comprises a garbage air dryer, a first belt conveyor, a screening roller, a second belt conveyor, a third belt conveyor, a combustor, a heat exchanger and a bag type dust collector. The output end of the garbage air dryer corresponds to the input end of the first belt conveyor, the output end of the first belt conveyor corresponds to an input port of the screening roller, the second belt conveyor is arranged below a sludge discharging output port of the screening roller, and a garbage output port of the screening roller corresponds to the input end of the third belt conveyor. The output end of the third belt conveyor extends into a combustion chamber in the combustor, an upper exhaust port of the combustor is connected with a hot flow inlet of the heat exchanger through a first exhaust pipeline, and a hot flow outlet of the heat exchanger is connected with an air inlet of the bag type dust collector through a second exhaust pipeline. The high-humidity garbage soil screening and processing device can effectively screen and process high-humidity garbage soil.

Description

Technical Field

[0001] This utility model relates to the technical field of waste soil treatment equipment, specifically to a high-humidity waste soil drum screening device. Background Technology

[0002] The garbage drum screen is a common garbage screening device. In practice, garbage mixed with domestic waste is poured into the garbage drum screen through the input end, and the inner cylinder of the garbage drum screen rotates, using the screening holes on the inner cylinder to separate the domestic waste and soil. This existing solution has several problems: First, some garbage soil has been piled up for a long time, resulting in a high moisture content in its components, causing the domestic waste and wet soil to become intertwined and difficult to screen; second, existing garbage drum screens only have garbage screening functions and do not have garbage processing functions, requiring manual transfer of the screened domestic waste to another device for further processing, which is cumbersome and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-humidity waste soil drum screening device that can preliminarily decompose and reduce the moisture content of waste soil before screening, and further process domestic waste after screening.

[0004] The technical solution of this utility model is as follows:

[0005] A high-humidity waste drum screening device includes a waste dryer, a first belt conveyor, a screening drum, a second belt conveyor, a third belt conveyor, a burner, a heat exchanger, and a bag filter. The waste dryer has a waste hopper at its input end, and its output end corresponds to the input end of the first belt conveyor. One end of the screening drum is an input port, and the other end is a waste output port. A sludge discharge port is located at the bottom of the screening drum, and a sludge discharge funnel is installed on the sludge discharge port, close to the waste output port. The output end of the first belt conveyor corresponds to the input port of the screening drum, and the second belt conveyor is located at the sludge discharge port of the screening drum. Below the outlet, the waste output port of the screening roller corresponds to the input end of the third belt conveyor. The output end of the third belt conveyor extends into the combustion chamber inside the burner. A feeding plate is inclined downward at the lower part of the burner, and a feeding gate is provided on the feeding plate. A first dust funnel is provided at the bottom of the burner. A screen is provided on the feeding plate corresponding to the combustion chamber and the first dust funnel. The upper exhaust port of the burner is connected to the heat flow inlet of the heat exchanger through a first exhaust pipe. The heat flow outlet of the heat exchanger is connected to the air inlet of the bag filter through a second exhaust pipe. An induced draft fan is provided at the upper exhaust port of the bag filter, and a chimney is provided on the upper exhaust port of the bag filter.

[0006] Furthermore, the garbage dryer has three conveyor wheels arranged in sequence from the input end to the output end, with the three conveyor wheels staggered vertically. Each conveyor wheel has blades. A blower is provided on the inner side wall of the output end of the garbage dryer, and an exhaust port is provided at the input end of the garbage dryer.

[0007] Furthermore, the first belt conveyor is inclined upwards from the input end to the output end.

[0008] Furthermore, the screening drum is inclined downward from the input end to the output end. The screening drum includes an inner cylinder and an outer cylinder arranged in concentric straight circular tubes. One end of the inner cylinder is the input port, and the other end of the inner cylinder is the waste output port. The surface of the inner cylinder is distributed with a number of screening holes that connect the inner and outer sides of the inner cylinder. The sludge discharge port is located on the outer cylinder.

[0009] Furthermore, the second and third belt conveyors are arranged at an angle downwards from the input end to the output end.

[0010] Furthermore, a second dust funnel is provided at the bottom of the heat exchanger.

[0011] Furthermore, a third dust funnel is provided at the bottom of the bag filter.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model is equipped with a garbage dryer in front of the screening drum. The garbage dryer can preliminarily decompose the garbage soil and use high-temperature blowing to dehydrate the garbage soil, avoiding the problem of domestic waste and wet soil being wrapped together and difficult to screen. This allows the garbage soil to enter the screening drum and effectively screen the domestic waste and wet soil in the garbage soil. The soil is discharged from the sludge discharge funnel and fed through the second belt conveyor. After the screening drum, a burner, heat exchanger and bag dust collector are also installed. Domestic waste is discharged from the garbage outlet and transported to the burner through the third belt conveyor for combustion treatment of combustible materials. The exhaust gas generated by combustion is sent to the heat exchanger for waste heat recovery to achieve the purpose of energy saving, and then sent to the bag dust collector for dust removal to ensure that the dust discharged into the atmosphere is minimized. Non-combustible materials are discharged from the discharge plate at the bottom of the burner. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a high-humidity garbage drum screening device provided by this utility model. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0017] Example

[0018] Please see Figure 1 This embodiment provides a high-humidity garbage soil drum screening device, which can be used for screening high-humidity garbage soil and subsequent processing. It includes a garbage dryer 1, a first belt conveyor 2, a screening drum 3, a second belt conveyor 4, a third belt conveyor 5, a burner 6, a heat exchanger 7, and a bag filter 8.

[0019] The garbage dryer 1 has a garbage hopper 9 at its input end. Garbage soil is poured into the garbage dryer 1 from the garbage hopper 9 for dehydration. Specifically, the garbage dryer 1 has three conveyor wheels 11 arranged in sequence from the input end to the output end. The three conveyor wheels 11 are staggered vertically, and each conveyor wheel 11 has blades. This structural design can initially decompose the high-moisture garbage soil. Furthermore, a blower 12 is provided on the inner wall of the output end of the garbage dryer 1, and an exhaust port 13 is opened at the input end of the garbage dryer 1. The blower 12 can quickly dehydrate the decomposed garbage soil by blowing air at high temperature and using the working principle of working in the opposite direction to the garbage pushing direction.

[0020] The first belt conveyor 2 is inclined upward from the input end to the output end. The output end of the garbage dryer 1 corresponds to the input end of the first belt conveyor 2. The output end of the first belt conveyor 2 corresponds to the input port of the screening drum 3. The dehydrated garbage soil is transported to the screening drum 3 through the first belt conveyor 2 for screening, which avoids the problem of domestic waste and wet soil being wrapped together and difficult to screen, and greatly improves the screening efficiency.

[0021] The screening drum 3 is inclined downwards from the input end to the output end. The screening drum includes an inner cylinder and an outer cylinder arranged in concentric straight circular tubes. One end of the inner cylinder is the input port, and the other end is the waste output port. Several screening holes are distributed on the surface of the inner cylinder, connecting the inner and outer sides. A sludge discharge port is located at the bottom of the outer cylinder, and a sludge discharge funnel 31 is installed on the sludge discharge port, close to the waste output port. A second belt conveyor 4 is located below the sludge discharge port of the screening drum 3, and is inclined downwards from the input end to the output end. Waste enters the inner cylinder through the input port and rotates to screen out the domestic waste and soil. The soil leaks out from the sludge discharge funnel 31 and is discharged via the second belt conveyor 4, while the domestic waste is output from the waste output port.

[0022] The waste output port of the screening drum 3 corresponds to the input end of the third belt conveyor 5. The third belt conveyor 5 is inclined downward from the input end to the output end, and the output end of the third belt conveyor 5 extends into the combustion chamber inside the burner 6. The screened domestic waste is transported to the burner 6 for further combustion treatment via the third belt conveyor 5.

[0023] A feed plate 61 is inclined downwards at the lower part of the burner 6, and a feed door 62 is provided on the feed plate 61. A first dust funnel 63 is provided at the bottom of the burner 6, and a screen 64 is provided on the feed plate 61 corresponding to the combustion chamber and the first dust funnel 63. When municipal solid waste is burned, most of the dust produced falls from the first dust funnel 63 through the screen 64, while non-combustible materials are discharged from the feed plate 61 by opening the feed door 62.

[0024] The upper exhaust port of the burner 6 is connected to the heat inlet of the heat exchanger 7 through the first exhaust pipe 65. The exhaust gas generated by combustion is sent to the heat exchanger 7 for waste heat recovery, thereby achieving energy saving. Furthermore, a second dust funnel 71 is provided at the bottom of the heat exchanger 7, through which dust that has not fallen from the first dust funnel 63 can fall.

[0025] The heat outlet of heat exchanger 7 is connected to the air inlet of bag filter 8 through the second exhaust pipe 72. An induced draft fan 81 is installed at the upper exhaust port of bag filter 8, and a chimney 82 is installed above the upper exhaust port of bag filter 8. A third dust funnel 83 is installed at the bottom of bag filter 8. The exhaust gas generated by the combustion of municipal solid waste passes through the first exhaust pipe 65, heat exchanger 7, second exhaust pipe 72, and bag filter 8 in sequence under the action of induced draft fan 81, and is finally discharged into the atmosphere from the chimney 82. The bag filter 8 is designed to minimize the dust discharged into the atmosphere, and the dust in the final stage falls from the third dust funnel 83.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-moisture garbage drum screening device, characterized in that: The system includes a waste dryer, a first belt conveyor, a screening drum, a second belt conveyor, a third belt conveyor, a burner, a heat exchanger, and a bag filter. The waste dryer has a waste hopper at its input end, and its output end corresponds to the input end of the first belt conveyor. One end of the screening drum is the input port, and the other end is the waste output port. A sludge discharge port is located at the bottom of the screening drum, and a sludge discharge funnel is installed on the sludge discharge port, close to the waste output port. The output end of the first belt conveyor corresponds to the input port of the screening drum, and the second belt conveyor is located below the sludge discharge port of the screening drum. The waste output port of the screening drum corresponds to the input end of the third belt conveyor. The output end of the third belt conveyor extends into the combustion chamber inside the burner. A feeding plate is inclined downward at the lower part of the burner, and a feeding gate is provided on the feeding plate. A first dust funnel is provided at the bottom of the burner. A screen is provided on the feeding plate corresponding to the combustion chamber and the first dust funnel. The upper exhaust port of the burner is connected to the heat flow inlet of the heat exchanger through a first exhaust pipe. The heat flow outlet of the heat exchanger is connected to the air inlet of the bag filter through a second exhaust pipe. An induced draft fan is provided at the upper exhaust port of the bag filter, and a chimney is provided on the upper exhaust port of the bag filter.

2. The high-humidity waste drum screening device according to claim 1, characterized in that: The garbage dryer has three conveyor wheels arranged in sequence from the input end to the output end, with the three conveyor wheels staggered vertically. Each conveyor wheel has blades. A blower is provided on the inner wall of the output end of the garbage dryer, and an exhaust port is provided at the input end of the garbage dryer.

3. The high-humidity waste drum screening device according to claim 1, characterized in that: The first belt conveyor is inclined upward from the input end to the output end.

4. The high-moisture garbage drum screening device according to claim 3, characterized in that: The screening drum is inclined downward from the input end to the output end. The screening drum includes an inner cylinder and an outer cylinder arranged in concentric straight circular tubes. One end of the inner cylinder is the input port, and the other end of the inner cylinder is the waste output port. The surface of the inner cylinder is distributed with a number of screening holes that connect the inner and outer sides of the inner cylinder. The sludge discharge port is located on the outer cylinder.

5. The high-moisture garbage drum screening device according to claim 4, characterized in that: The second and third belt conveyors are arranged at an angle downwards from the input end to the output end.

6. The high-moisture garbage drum screening device according to claim 1, characterized in that: A second dust funnel is provided at the bottom of the heat exchanger.

7. The high-moisture garbage drum screening device according to claim 1, characterized in that: The bottom of the bag filter is equipped with a third dust funnel.

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