A dry separation device for gasification slag

Abstract

This utility model belongs to the field of drying equipment, and particularly relates to a dry separation device for gasification slag. It includes a material drying shed, a closed screening shed located on one side of the drying shed for screening the material, and a conveying device for transporting the material between the drying shed and the closed screening shed. The drying shed includes a closed shed on the bottom surface, with a heating device for drying the interior of the shed. The closed screening shed includes a sealed room on the ground, with a screening device for screening the material inside. In this utility model, gasification slag is placed in the drying shed for drying, and then transported to the closed screening shed via the conveying device for screening. Furthermore, both the drying shed and the closed screening shed in this separation device are fully enclosed, preventing the odor of the gasification slag from dispersing into the outside air, effectively protecting the environment.

Description

Technical Field

[0001] This utility model belongs to the field of gasification slag treatment, and in particular relates to a dry separation device for gasification slag. Background Technology

[0002] Coal gasification slag is a solid waste generated during coal chemical production, mainly originating from the coarse and fine slag discharged from the coal gasification furnace. Because gasification slag contains unreacted residual carbon, ash, and some harmful substances, direct dumping or landfilling not only occupies land resources but may also cause environmental pollution. To improve resource utilization and reduce environmental risks, water separation processes are typically used to treat the gasification slag, recovering residual carbon and separating ash through methods such as hydrocyclone and flotation. However, the water separation process consumes a large amount of water resources and generates industrial wastewater with high turbidity, high suspended solids, and containing heavy metals and organic pollutants. This type of wastewater pollutes surface water and groundwater, damaging the ecological environment. Utility Model Content

[0003] To achieve the above objectives, the specific technical solution of the gasification slag dry separation device of this utility model is as follows:

[0004] A dry separation device for gasification slag includes a material drying shed, a closed screening shed located on one side of the material drying shed for screening the material, and a conveying device for conveying the material between the material drying shed and the closed screening shed. The drying shed includes a closed shed on the bottom surface, and a heating device for drying the interior of the shed is installed on the closed shed. The closed screening shed includes a closed room located on the ground, and a screening device for screening the material is located inside the room. The closed room is located on one side of the closed shed, and the conveying device is located between the closed room and the closed shed, with the portion of the conveying device inside the closed room positioned above the vibrating screen.

[0005] Furthermore, the screening device includes a fixed base located on the ground inside the sealed room, springs located at the four corners of the fixed base, a screening frame on the spring, a fixed block on the screening frame corresponding to the spring position, and the top of the spring connected to the corresponding fixed block, a screen on the top surface of the screening frame, and a vibrating motor on the side wall of the screening frame.

[0006] Furthermore, the top surface of the screening frame is inclined.

[0007] Furthermore, the heating device includes multiple heat collection devices installed on the side wall of the sealed shed, an exhaust pipe installed on the sealed shed and connected to the sealed shed, the top of each heat collection device being connected through an exhaust pipe, and the exhaust pipe of the heat collection device being connected to the exhaust pipe.

[0008] Furthermore, multiple conveying pipes are distributed in the ground below the sealed shed, and multiple discharge pipes are vertically installed in the sealed shed on the ground. The conveying pipes and discharge pipes are arranged correspondingly, and each conveying pipe is connected to its corresponding discharge pipe. One end of the conveying pipe relative to the discharge pipe is connected to a main pipe, which is located in the ground. The air outlet pipe of the heat collection device is connected to the main pipe through a connecting pipe.

[0009] Furthermore, the lower end of the heat collection device is connected through an air inlet pipe, and a blower is located on the ground. The blower is connected to the air inlet pipe of the heat collection device through a connecting pipe.

[0010] Furthermore, the conveying device includes a housing located between the sealed shed and the sealed room, with both ends of the housing extending into their respective sealed sheds and sealed rooms. Rotary rollers are rotatably mounted on both sides inside the housing, and these rollers are connected by a conveyor belt. A drive motor is located on the side wall of the housing corresponding to one of the rollers, and the drive motor is connected to its corresponding roller. One end of the housing inside the sealed room is open, and the top surface of the end of the housing inside the sealed shed also has an opening, with a feeding channel located at the opening.

[0011] Furthermore, the enclosure is positioned at an angle between the sealed shed and the sealed room.

[0012] The gasification slag dry separation device of this utility model has the following advantages:

[0013] This invention involves placing the gasification slag into a material drying shed for drying. The dried slag is then conveyed to a closed screening shed via a conveying device. The material falls directly onto the screening device within the closed screening shed, where it is screened. The screened material is then recycled according to its specifications. Furthermore, both the material drying shed and the closed screening shed in this separation device are fully enclosed, preventing the odor from the gasification slag from dispersing into the outside air and effectively protecting the environment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a dry separation device for gasification slag according to the present invention;

[0015] Figure 2 This is a schematic diagram of the material drying shed of this utility model;

[0016] Figure 3 This is a schematic diagram of the conveying device of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealed room and screening device of this utility model.

[0018] Explanation of markings in the diagram:

[0019] 1. Bottom surface; 2. Steel frame; 3. Shelf panel; 4. Shelf roof; 5. Blower; 6. Connecting pipe one; 7. Heat collector pipe; 8. Air inlet pipe; 9. Air outlet pipe; 10. Main pipe; 11. Connecting pipe two; 12. Conveying pipe; 13. Discharge pipe; 14. Cover; 15. Feeding channel; 16. Rotating roller; 17. Drive motor; 18. Conveyor belt; 19. Screening chamber; 20. Fixed base; 21. Spring; 22. Fixed block; 23. Screening frame; 24. Screen; 25. Vibrating motor. Detailed Implementation

[0020] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a gasification slag dry separation device of this utility model.

[0021] like Figures 1 to 4 As shown, this utility model discloses a dry separation device for gasification slag, comprising a material drying shed, a closed screening shed located on one side of the material drying shed for material screening, and a conveying device for material transport between the material drying shed and the closed screening shed. The gasification slag material can be placed in the material drying shed for drying. After the material is dried, the conveying device is activated, and the dried material is placed in the conveying device and transported to the closed screening shed for dry separation. The screened gasification slag can be pressed into briquettes for recycling. Furthermore, due to its good moisture retention, 60% of the screened gasification slag particles can be used in road construction, with the addition of cement, latex powder, and polypropylene fiber, to make road mortar for recycling.

[0022] Specifically, the drying shed includes a sealed shed located on the bottom surface 1, and a heating device for drying the interior of the shed is installed on the sealed shed. The sealed shed consists of two parallel steel frames 2, shed panels 3 mounted on the two steel frames 2, side panels at both ends of the two shed panels 3, and a roof 4 that seals the top surface of the shed body composed of the shed panels 3 and the side panels, making the shed completely enclosed. This prevents heat loss from the drying shed and improves its drying effect. A door panel is rotatably installed on the side panel opposite the conveyor device, facilitating manual transport of material boxes into the drying shed.

[0023] The enclosed screening shed includes a sealed chamber 19 located on the ground, and a screening device for screening materials located inside the sealed chamber 19. A door panel is also rotatably installed at one end of the sealed chamber 19 opposite the conveying device, facilitating the outward transport of screened materials. The sealed chamber 19 is fully sealed to prevent the odor of materials entering the sealed chamber 19 from escaping to the outside, thus preventing environmental pollution caused by gasification slag odor. The sealed chamber 19 is located on one side of the enclosed shed, and the conveying device is located between the sealed chamber 19 and the enclosed shed. The portion of the conveying device used for material transport located inside the sealed chamber 19 is above the vibrating screen. This allows materials falling from the conveying device to directly land on the screening device, improving the practicality of this separation device and accelerating the screening efficiency of materials.

[0024] The screening device includes a fixed base 20 located on the ground inside a sealed chamber 19, springs 21 located at the four corners of the fixed base 20, and a screening frame 23 mounted on the springs 21. A fixing block 22 is mounted on the screening frame 23 corresponding to the spring 21, and the top of the spring 21 is connected to its corresponding fixing block 22. A screen 24 is mounted on the top surface of the screening frame 23, and a vibrating motor 25 is mounted on the side wall of the screening frame 23, connected to an external power supply. When the vibrating motor 25 is started, it drives the screen 24 to vibrate through the screening frame 23. When material falls onto the screen 24, the screen 24 screens the material; the gasified slag passes through the screen 24 and falls down, while the gasified slag particles remain on the screen 24. To facilitate the falling of particles from the screen 24, the top surface of the screening frame 23 is inclined.

[0025] Specifically, the heating device includes multiple heat collection devices mounted on the side wall of the sealed shed, and an exhaust pipe 13 mounted on and connected to the sealed shed. The top of each heat collection device is connected via an exhaust pipe 9, and the exhaust pipe 9 of the heat collection device is connected to the exhaust pipe 13. The heat collection device is a conventional heat collection tube 7, which absorbs solar radiation energy and converts it into heat energy. The heated air inside the heat collection tube 7 rises, is collected through the exhaust pipe 9 at the top, and is introduced into the exhaust pipe 13, thereby raising the temperature inside the sealed shed and achieving a drying effect on the materials inside. Furthermore, the installation of the heat collection tube 7 allows for solar energy collection, reducing energy consumption and carbon emissions.

[0026] like Figure 2As shown, multiple conveying pipes 12 are distributed in the ground below the sealed shed, and multiple discharge pipes 13 are vertically installed in the sealed shed above the ground. The conveying pipes 12 and discharge pipes 13 are correspondingly arranged, and each conveying pipe 12 is connected to its corresponding discharge pipe 13. Simultaneously, one end of each conveying pipe 12 relative to the discharge pipe 13 is connected to a main pipe 10, which is located in the ground. The air outlet pipe 9 of the heat collection device is connected to the main pipe 10 via a connecting pipe 2 11. The heat collection device absorbs solar energy and heats the air. The hot air enters the connecting pipe 2 11 through the air outlet pipe 9 and then flows into the main pipe 10 buried underground. The main pipe 10 evenly distributes the hot air to each conveying pipe 12, and the conveying pipes 12 transport the heat into the sealed shed through the discharge pipes 13. It should be noted that the hot air heats itself upon entering the conveying pipe 12, and the ground in contact with the conveying pipe 12 also heats up. This heated ground effectively dries the gasified slag placed on the ground, resulting in more uniform and rapid drying.

[0027] Preferably, the lower end of the heat collection device is connected via an air inlet pipe 8, and a blower 5 connected to an external power source is installed on the ground. The blower 5 is connected to the air inlet pipe 8 of the heat collection device via a connecting pipe 1 6. When the blower 5 is working, it will deliver air through the air inlet pipe 8 to the heat collection pipe 7 of the heat collection device, and heat it through the heat collection pipe 7. The heated air then enters the connecting pipe 2 11 and the main pipe 10 through the air outlet pipe 9, and is then delivered to the sealed chamber through the conveying pipe 12 and the discharge pipe 13 to accelerate the blowing of hot air into the sealed chamber, so that the hot air circulates in the sealed chamber.

[0028] The conveying device for transporting materials includes a housing 14 disposed between a sealed shed and a sealed room 19, with both ends of the housing 14 extending into their respective sealed sheds and sealed rooms 19. Rotary rollers 16 are rotatably mounted on both sides inside the housing 14, and the rollers 16 are connected to each other via a conveyor belt 18. A drive motor 17, connected to an external power source, is located on the side wall of the housing 14 corresponding to one of the rollers 16. The drive motor 17 rotates, driving the connected roller 16 to operate, and this roller 16, under the action of the conveyor belt 18, drives the other roller 16 to rotate, thus transferring the material placed on the conveyor belt to its intended purpose.

[0029] The cover 14 is located inside the sealed chamber 19 with an opening at one end, and the top surface of the cover 14 at the end inside the sealed chamber has an opening, with a feeding channel 15 at the opening. The material being dried in the sealed chamber can be added to the conveyor belt inside the cover 14 through the feeding channel 15. Then, as the conveyor belt moves, it will transport the material to the sealed chamber 19, and the material falling from the conveyor belt will fall directly onto the screen 24, where the material can be screened.

[0030] To facilitate the transport of materials from the enclosed shed to the conveyor belt, the cover 14 is positioned between the enclosed shed and the enclosed room 19 with a left-low and right-high inclination.

[0031] Instructions for use: Place the material into the sealed shed, and supply hot air into the sealed shed through the heat collection device and blower 5 to dry the material in the sealed shed. After the material is dried, start the conveying device and screening device. Then, the material in the sealed shed is conveyed to the sealed chamber 19 through the conveying device, and the material falling from the conveying device will fall directly onto the screening device. After screening by the screening device, the gasification slag material can be separated.

[0032] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A dry separation device for gasification slag, characterized in that: It includes a material drying shed, a closed screening shed located on one side of the material drying shed for screening materials, and a conveying device for conveying materials between the material drying shed and the closed screening shed. The drying shed includes a sealed shed located on the bottom surface (1), and a heating device for drying the interior of the shed is provided on the sealed shed. The enclosed screening shed includes an enclosed room (19) located on the ground, and a screening device for screening materials is located inside the room; The sealed room (19) is located on one side of the sealed shed, and the conveying device is located between the sealed room (19) and the sealed shed. The part of the conveying device inside the sealed room (19) is located above the vibrating screen.

2. The dry separation device for gasification slag according to claim 1, characterized in that: The screening device includes a fixed base (20) located on the ground inside a sealed room (19), springs (21) located at the four corners of the fixed base (20), and a screening frame (23) on the springs (21). The screening frame (23) is provided with a fixing block (22) corresponding to the position of the spring (21), and the top of the spring (21) is connected to its corresponding fixing block (22). A screen (24) is provided on the top surface of the screening frame (23), and a vibration motor (25) is provided on the side wall of the screening frame (23).

3. The dry separation device for gasification slag according to claim 2, characterized in that: The top surface of the screening frame (23) is inclined.

4. The dry separation device for gasification slag according to claim 1, characterized in that: The heating device includes multiple heat collection devices installed on the side wall of the sealed shed, and an exhaust pipe (13) installed on the sealed shed and connected to the sealed shed. The top of each heat collection device is connected through an exhaust pipe (9), and the exhaust pipe (9) of the heat collection device is connected to the exhaust pipe (13).

5. A dry separation device for gasification slag according to claim 1, characterized in that... ； Below the sealed shed, there are multiple conveying pipes (12) distributed in the ground, and multiple discharge pipes (13) are vertically arranged in the sealed shed on the ground. The conveying pipes (12) and discharge pipes (13) are arranged correspondingly, and each conveying pipe (12) is connected to its corresponding discharge pipe (13). One end of the delivery pipe (12) relative to the discharge pipe (13) is connected through the main pipe (10), and the main pipe (10) is located in the ground. The air outlet pipe (9) of the heat collection device is connected to the main pipe (10) through the connecting pipe two (11).

6. The dry separation device for gasification slag according to claim 4, characterized in that; The lower end of the heat collection device is connected through an air inlet pipe (8), and a blower (5) is provided on the ground. The blower (5) is connected to the air inlet pipe (8) of the heat collection device through a connecting pipe (6).

7. The dry separation device for gasification slag according to claim 1, characterized in that... ； The conveying device includes a cover (14) located between a sealed shed and a sealed room (19), with both ends of the cover (14) extending into their respective sealed sheds and sealed rooms (19). Rotary rollers (16) are rotatably provided on both sides inside the cover (14), and the rollers (16) are connected by a conveyor belt (18). A drive motor (17) is provided on the side wall of the cover (14) corresponding to one of the rollers (16), and the drive motor (17) is connected to its corresponding roller (16). The cover (14) is located inside the sealed room (19) with an opening at one end, and the top surface of the cover (14) located inside the sealed shed has an opening, and a feeding channel (15) is provided at the opening.

8. The dry separation device for gasification slag according to claim 7, characterized in that; The cover (14) is inclined between the sealed shed and the sealed room (19).

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