Apparatus for coal-fired flue gas waste heat and pollutant resource utilization in coordination

Abstract

The utility model relates to related technical field of coal flue gas utilization especially uses coal flue gas waste heat collaborative pollutant resource utilization equipment, including: adsorption subassembly, adsorption subassembly includes: adsorption box, air inlet is located one side of adsorption box, filter component, and the filter component includes: connecting frame, fixed in the middle of air inlet and adsorption box, and make air inlet and adsorption box interpenetration, through slot, set up in the inside of connecting frame, and penetrate the top surface and the bottom surface of connecting frame, first fixed frame, fixed in the top surface of connecting frame, second fixed frame, fixed in the bottom surface of connecting frame, filter screen, in the utility model, through the preliminary interception of filter screen, greatly reduced this risk, guarantee system airflow unobstructed, make waste heat reuse system can steadily and continuously run, avoided the system shutdown or the decline of filtration effect due to filter screen blockage, make the whole system can continuously run, greatly improved work efficiency, solved the problem in the prior art.

Description

Technical Field

[0001] This utility model relates to the technical field of coal-fired flue gas utilization, and in particular to equipment for the synergistic resource utilization of waste heat and pollutants from coal-fired flue gas. Background Technology

[0002] Equipment used for the synergistic utilization of waste heat from coal-fired flue gas and the resource recovery of pollutants mainly includes activated carbon adsorption towers, multi-tower adsorbers, and CO catalytic oxidizers. Activated carbon adsorption towers use activated carbon as the adsorbent to adsorb pollutants in the flue gas. During adsorption, activated carbon not only adsorbs pollutants but also promotes the transformation of certain pollutants through its catalytic effect. When the activated carbon reaches adsorption saturation, its adsorption capacity can be restored through a desorption regeneration process, simultaneously obtaining a high concentration of pollutant desorbed gas.

[0003] Activated carbon adsorption towers do not use filters before adsorption, so large particulate impurities in the flue gas, such as dust and fly ash, will directly enter the activated carbon adsorption tower.

[0004] Large particles of impurities can occupy the adsorption sites of activated carbon, hindering the full contact between activated carbon and pollutants, thereby reducing the actual adsorption capacity of activated carbon and its effective utilization rate. Large particles of impurities may also block the microporous structure of activated carbon. The adsorption effect of activated carbon mainly depends on its well-developed pore structure. When the pores are blocked, it will not only reduce the current adsorption efficiency, but also reduce the overall performance of activated carbon, shorten its service life, and increase the frequency and cost of replacement. Utility Model Content

[0005] The purpose of this invention is to provide a device for the synergistic utilization of waste heat from coal-fired flue gas and pollutants, in order to solve the problems mentioned in the background art.

[0006] The technical solution adopted in this utility model is:

[0007] Equipment for the co-processing of waste heat from coal-fired flue gas and the resource utilization of pollutants includes:

[0008] Adsorption components;

[0009] The adsorption component includes:

[0010] Adsorption box;

[0011] The air inlet is located on one side of the adsorption box;

[0012] The filtering component includes:

[0013] The connecting frame is fixed between the air inlet and the adsorption box, and the air inlet and the adsorption box are interconnected.

[0014] A through groove is formed inside the connecting frame and extends through the top and bottom surfaces of the connecting frame;

[0015] The first fixed frame is fixed to the top surface of the connecting frame;

[0016] The second fixed frame is fixed to the bottom surface of the connecting frame, and the two ends of the filter screen are wrapped inside the first fixed frame and the second fixed frame;

[0017] The filter screen is placed inside the through groove, which extends through the bottom surface of the first fixed frame and the top surface of the second fixed frame.

[0018] Optionally, the adsorption box has four fixed racks inside, each rack has a slidable placement box containing activated carbon, and the other side of the adsorption box is connected to an air outlet.

[0019] Optionally, a first sealing cover is snapped onto one side of the first fixing frame, and a take-up roller rotates through the middle of the first sealing cover.

[0020] Optionally, the outer surface of the take-up roller is wound with a used filter screen, a motor is fixed to one end of the take-up roller, a support is fixed to the lower surface of the motor, and one side of the support is fixed to the outer surface of the first sealing cover.

[0021] Optionally, a second sealing cover is snapped onto one side of the second fixing frame, and a rotating roller rotates through the center of the second sealing cover.

[0022] Optionally, a new filter screen is wound around the outer surface of the rotating roller, and the filter screen passes through the connecting frame.

[0023] Optionally, it also includes a dredging component; the dredging component includes: a mounting bracket, welded to the middle and outer side of the placement bracket; a mounting groove, formed on the upper surface of the mounting bracket, and the mounting groove corresponds to the gap on the bottom surface of the placement box; and a spring, fixed inside the mounting groove.

[0024] Optionally, a connecting post is fixed to the upper end of the spring, and the upper end of the connecting post is conical and the lower end is cylindrical.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] Before reusing the waste heat of coal-fired flue gas, impurities in the flue gas need to be adsorbed using adsorption and filtration components. The flue gas enters the adsorption box through the inlet and first passes through the connecting frame. The filter screen inside the connecting frame intercepts large particles of impurities, preventing them from entering the adsorption box. When the filter screen becomes clogged and can no longer filter large impurities, the motor is started by an external controller. The motor drives the winding roller to rotate, winding the used filter screen onto the outer surface of the winding roller. A new filter screen is then released from the rotating roller and continues to filter in the middle of the connecting frame. This initial interception by the filter screen greatly reduces the risk of this problem, ensuring smooth airflow in the system and enabling the waste heat recovery system to operate stably and continuously. It avoids system shutdowns or reduced filtration efficiency due to filter screen clogging, allowing the entire system to operate continuously, greatly improving work efficiency and solving the problems in existing technologies. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a first-person perspective illustration in this application;

[0029] Figure 2 This is a schematic diagram of the internal structure of the adsorption component in this application;

[0030] Figure 3 This is an exploded view of the structure of the filtering component in this application;

[0031] Figure 4 This is a schematic diagram of the unblocking component in this application;

[0032] Figure 5 This is an exploded view of the unblocking component in this application.

[0033] Figure label:

[0034] 1. Adsorption assembly; 11. Adsorption box; 12. Placement box; 13. Air inlet; 14. Air outlet; 15. Placement rack;

[0035] 2. Filter assembly; 21. Connecting frame; 22. Through groove; 23. First fixing frame; 24. First sealing cover; 25. Take-up roller; 26. Motor; 261. Support platform; 27. Filter screen; 28. Second fixing frame; 29. ​​Second sealing cover; 291. Rotating roller;

[0036] 3. Unblocking components; 31. Mounting bracket; 32. Mounting slot; 33. Spring; 34. Connecting post; Detailed Implementation

[0037] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] Given that in current technologies, large particulate impurities can occupy the adsorption sites of activated carbon, hindering sufficient contact between activated carbon and pollutants, thereby reducing the actual adsorption capacity of activated carbon for pollutants and reducing its effective utilization rate. Large particulate impurities may also block the microporous structure of activated carbon. The adsorption effect of activated carbon mainly depends on its well-developed pore structure. After the pores are blocked, not only will the current adsorption efficiency be reduced, but the overall performance of activated carbon will also decline, shorten its service life, and increase the frequency and cost of activated carbon replacement.

[0040] like Figure 1-4 As shown, this utility model embodiment provides a device for the synergistic utilization of waste heat from coal-fired flue gas and pollutants, including...

[0041] Adsorption component 1;

[0042] Adsorption component 1 includes:

[0043] Adsorption box 11;

[0044] The air inlet 13 is located on one side of the adsorption box 11;

[0045] Filter component 2, filter component 2 includes:

[0046] The connecting frame 21 is fixed between the air inlet 13 and the adsorption box 11, and the air inlet 13 and the adsorption box 11 are in communication with each other.

[0047] The through groove 22 is formed inside the connecting frame 21 and extends through the top and bottom surfaces of the connecting frame 21;

[0048] The first fixed frame 23 is fixed to the top surface of the connecting frame 21;

[0049] The second fixing frame 28 is fixed to the bottom surface of the connecting frame 21, and the two ends of the filter screen 27 are wrapped inside the first fixing frame 23 and the second fixing frame 28.

[0050] The filter screen 27 is placed inside the through groove 22, and the through groove 22 passes through the bottom surface of the first fixing frame 23 and the top surface of the second fixing frame 28.

[0051] Optionally, four placement racks 15 are fixed inside the adsorption box 11, and placement boxes 12 are slidably placed inside the placement racks 15. Activated carbon is stacked inside the placement boxes 12. An air outlet 14 is connected to the other side of the adsorption box 11.

[0052] The adsorption box 11 serves as the main site for the adsorption process, providing sufficient space and time for the flue gas to fully contact the activated carbon inside, thereby achieving the adsorption of impurities in the flue gas and the initial recovery of waste heat. The connecting frame 21 connects the air inlet 13 and the adsorption box 11, ensuring that the flue gas can flow smoothly from the air inlet 13 into the adsorption box 11. The through groove 22 provides a space channel for the filter screen 27, allowing the filter screen to unfold and perform its filtering function. The first fixed frame 23 and the second fixed frame 28 ensure that the position of the filter screen 27 is stable in the through groove 22, without displacement or shaking. At the same time, they also guide the winding and unwinding process of the filter screen 27, allowing the filter screen to be neatly wound on the take-up roller 25 and the rotating roller 291.

[0053] The adsorption box 11 has four fixed racks 15 inside, and a placement box 12 is slidably placed inside the racks 15. Activated carbon is stacked inside the placement box 12. An air outlet 14 is connected to the other side of the adsorption box 11.

[0054] The placement rack 15 provides an installation position for the placement box 12, so that the placement box can remain stable inside the adsorption box 11. The air outlet 14 is connected to the other side of the adsorption box 11. The flue gas after adsorption and filtration is discharged from the system through the air outlet, completing the entire treatment process.

[0055] A first sealing cover 24 is snapped onto one side of the first fixed frame 23. A take-up roller 25 rotates through the middle of the first sealing cover 24. A used filter screen 27 is wound around the outer surface of the take-up roller 25. A motor 26 is fixed to one end of the take-up roller 25. A support platform 261 is fixed to the lower surface of the motor 26. One side of the support platform 261 is fixed to the outer surface of the first sealing cover 24. A second sealing cover 29 is snapped onto one side of the second fixed frame 28. A rotating roller 291 rotates through the middle of the second sealing cover 29. A new filter screen 27 is wound around the outer surface of the rotating roller 291, and the filter screen 27 passes through the connecting frame 21.

[0056] The first sealing cover 24 prevents flue gas from leaking out from the unfiltered area at the top of the filter screen 27. Driven by the motor 26, the winding roller 25 rotates to wind up the used filter screen 27 so that a new filter screen 27 can be replaced in time. The second sealing cover 29 also plays a sealing role to prevent flue gas leakage.

[0057] Before utilizing the waste heat of coal-fired flue gas, impurities in the flue gas need to be adsorbed. The flue gas enters the adsorption box 11 through the air inlet 13. The flue gas first passes through the connecting frame 21. The filter screen 27 inside the connecting frame 21 intercepts large particles of impurities, preventing them from entering the adsorption box 11. When the filter screen 27 becomes clogged and can no longer filter large impurities, the motor 26 is started by the external controller. The motor 26 drives the take-up roller 25 to rotate, winding the used filter screen 27 onto the outer surface of the take-up roller 25. The new filter screen 27 is then released from the rotating roller 291, allowing it to continue filtering in the middle of the connecting frame 21. The initial interception by the filter screen 27 greatly reduces this risk, ensuring smooth airflow in the system and enabling the waste heat recovery system to operate stably and continuously. This avoids system shutdowns or reduced filtration efficiency due to filter screen 27 clogging, allowing the entire system to operate continuously, greatly improving work efficiency and solving the problems in the existing technology.

[0058] Specifically, such as Figure 1-5 As shown,

[0059] Unblocking component 3; Unblocking component 3 includes: mounting bracket 31, welded to the middle and outer side of the placement bracket 15; mounting groove 32, formed on the upper surface of mounting bracket 31, and the mounting groove 32 corresponds to the gap on the bottom surface of placement box 12; spring 33, fixed inside the mounting groove 32;

[0060] A connecting post 34 is fixed to the upper end of the spring 33, and the upper end of the connecting post 34 is conical and the lower end is cylindrical.

[0061] The mounting bracket 31 provides a stable mounting base for other components, and the mounting groove 32 provides a suitable space for the spring 33, so that the spring 33 can be stably installed in the designated position. In the initial state, the spring 33 is in a compressed state and stores a certain amount of elastic potential energy. When the connecting post 34 is aligned with the bottom through hole of the placement box 12, the spring 33 gradually returns to its original length, releases the elastic potential energy, and pushes the connecting post 34 downward, thereby realizing the unblocking action of the through hole.

[0062] During use, after the activated carbon surface is fully adsorbed, pull open the placement box 12 to replace the activated carbon. Under the action of the spring 33, the connecting column 34 will clear the through hole at the bottom of the placement box 12. The top of the connecting column 34 will be inserted into the interior of the placement box 12. While replacing the activated carbon, the placement box 12 will be cleared. The flue gas from coal combustion can be evenly distributed in the activated carbon layer and fully contact the activated carbon to improve the adsorption efficiency.

[0063] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An equipment for the synergistic utilization of waste heat from coal-fired flue gas and pollutants, characterized in that: include: Adsorption component (1); The adsorption assembly (1) includes: an adsorption box (11); an air inlet (13) located on one side of the adsorption box (11); and a filter assembly (2), which includes: The connecting frame (21) is fixed between the air inlet (13) and the adsorption box (11), and the air inlet (13) and the adsorption box (11) are connected to each other; A through groove (22) is formed inside the connecting frame (21) and extends through the top and bottom surfaces of the connecting frame (21); The first fixed frame (23) is fixed to the top surface of the connecting frame (21); The second fixed frame (28) is fixed to the bottom surface of the connecting frame (21), and the two ends of the filter screen (27) are wrapped inside the first fixed frame (23) and the second fixed frame (28); The filter screen (27) is placed inside the through groove (22), and the through groove (22) passes through the bottom surface of the first fixed frame (23) and the top surface of the second fixed frame (28).

2. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas as described in claim 1, characterized in that, The adsorption box (11) has four placement racks (15) fixed inside. Placement boxes (12) are slidably placed inside the placement racks (15), and activated carbon is stacked inside the placement boxes (12). An air outlet (14) is connected to the other side of the adsorption box (11).

3. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas as described in claim 1, characterized in that, A first sealing cover (24) is snapped onto one side of the first fixed frame (23), and a take-up roller (25) rotates through the middle of the first sealing cover (24).

4. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas as described in claim 3, characterized in that, The outer surface of the take-up roller (25) is wound with a used filter screen (27). A motor (26) is fixed to one end of the take-up roller (25). A support platform (261) is fixed to the lower surface of the motor (26). One side of the support platform (261) is fixed to the outer surface of the first sealing cover (24).

5. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas according to claim 1, characterized in that, A second sealing cover (29) is snapped onto one side of the second fixing frame (28), and a rotating roller (291) is rotatably passed through the middle of the second sealing cover (29).

6. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas according to claim 5, characterized in that, The outer surface of the rotating roller (291) is wound with a new filter screen (27), and the filter screen (27) passes through the connecting frame (21).

7. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas according to claim 2, characterized in that, It also includes a dredging component (3); the dredging component (3) includes: a mounting bracket (31), welded to the middle and outer side of the placement bracket (15); a mounting groove (32), opened on the upper surface of the mounting bracket (31), and the mounting groove (32) and the bottom surface of the placement box (12) are aligned; and a spring (33), fixed inside the mounting groove (32).

8. The equipment for the synergistic utilization of waste heat and pollutants from coal-fired flue gas according to claim 7, characterized in that, The upper end of the spring (33) is fixed with a connecting post (34), and the upper end of the connecting post (34) is a cone and the lower end is a cylinder.

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