A flue gas comprehensive utilization and haze removal system

Abstract

The present invention discloses a comprehensive utilization and haze removal system for flue gas, which relates to the technical field of flue gas treatment. It includes a smoke inlet pipe, one end of the smoke inlet pipe is fixedly connected to a bent pipe that is bent upward, one end of the bent pipe is fixedly connected to a delivery pump, a partition plate is fixedly connected to the middle of the smoke inlet pipe, a smoke inlet cavity is arranged on the side of the partition plate away from the heat conduction plate, a heat regeneration cavity is arranged on the side of the partition plate close to the heat conduction plate, and two groups of symmetrically arranged thermoelectric converters are fixedly installed inside the heat regeneration cavity; The overall structure of the present invention is simple, with few power equipment, resulting in low failure rate, convenient installation and maintenance. At the same time, in the smoke inlet component of the present invention, by arranging a heat regeneration cavity and a number of thermoelectric converters in the smoke inlet pipe, heat is converted into electric energy during the flow of flue gas for the operation of the overall equipment, realizing the recovery of the heat of flue gas and reducing the energy consumption to the outside world.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas treatment, and specifically to a comprehensive utilization and haze removal system for flue gas. Background Art

[0002] The comprehensive utilization and haze removal system for flue gas is a general term for a series of devices and equipment used to purify the flue gas generated during industrial production or combustion processes, comprehensively utilize the useful components therein, and at the same time reduce the emissions of atmospheric pollutants to achieve the purpose of haze removal and air quality improvement.

[0003] Existing flue gas haze removal systems need to consume a large amount of energy to drive key components such as fans, pumps, dust collectors, and desulfurization equipment. The overall system contains many devices, is troublesome to install and maintain, and has a high overall operating energy consumption. Therefore, it is necessary to propose improvements. Summary of the Invention

[0004] The purpose of the present invention is to provide a comprehensive utilization and haze removal system for flue gas to solve the problems in the prior art system, namely, the overall system has many devices, is troublesome to install and maintain, and has a high overall operating energy consumption, so it is necessary to propose improvements.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A comprehensive utilization and haze removal system for flue gas includes a flue gas inlet component. The flue gas inlet component includes a flue gas inlet pipe. One end of the flue gas inlet pipe is fixedly connected to a bent pipe that is bent upward. One end of the bent pipe is fixedly connected to a transfer pump. The output end of the transfer pump is provided with a flow splitting component. One side of the flow splitting component is provided with a filtering component. One end of the filtering component is provided with a purification component;

[0007] The bottom of the flow splitting component and the bottom of the filtering component are both fixedly connected to the top of the flue gas inlet pipe through heat conducting plates. A partition plate is fixedly connected to the middle of the flue gas inlet pipe. An inlet flue gas chamber is provided on the side of the partition plate away from the heat conducting plate. A heat recovery chamber is provided on the side of the partition plate close to the heat conducting plate. Two symmetrically arranged thermoelectric converters are fixedly installed inside the heat recovery chamber. One side of the two thermoelectric sheets faces the inlet flue gas chamber and the heat conducting plate respectively; An air inlet is opened at the top of one side of the flue gas inlet pipe. A wind guiding frame is fixedly connected to the other side of the flue gas inlet pipe. A wind guiding fan is fixedly installed inside the wind guiding frame. An air outlet is opened at the top of the wind guiding frame. Dust-proof nets are fixedly connected to the inner walls of the air inlet and the air outlet.

[0008] As a further solution of the present invention: The flow splitting component includes a flow splitting box. One end of the flow splitting box is fixedly connected to the output end of the transfer pump through a transfer pipe. A flue gas guiding chamber is provided on the side of the inner wall of the flow splitting box close to the transfer pipe. A dust collection box is snap-fitted to the bottom of the flue gas guiding chamber.

[0009] As a further solution of the present invention: on the other side of the inner wall of the shunt box, a dust filtering chamber is provided, and a plurality of inclined receiving filter nets are fixedly connected to the inner wall of the dust filtering chamber.

[0010] As a further solution of the present invention: the filtering component includes a filtering flue, a plurality of flue filter nets are snap-connected in the middle of the filtering flue, a lifting plate is fixedly connected to the top of each of the plurality of flue filter nets, and one end of the filtering air duct communicates with the shunt box.

[0011] As a further solution of the present invention: one end of the inner wall of the filtering flue is fixedly connected with a receiving cover plate, the top of the receiving cover plate is recessed downward to form a receiving groove, a water collecting port is opened in the middle of the receiving groove, a liquid collecting pipe is fixedly connected to one side of the receiving cover plate, and the upper part of the receiving groove is correspondingly arranged with the bottom of the purification component; a smoke guiding plate is fixedly connected to one side of the receiving cover plate close to the shunt box.

[0012] As a further solution of the present invention: the purification component includes a purification tower, a plurality of packing racks are fixedly installed in the middle of the inner wall of the purification tower, packing materials are filled in the inner walls of the plurality of packing racks, and a smoke exhaust pipe is fixedly connected to the top of the purification tower.

[0013] As a further solution of the present invention: the bottom of the purification tower is fixedly connected with a smoke inlet cover, a smoke inlet through hole is opened in the middle of the smoke inlet cover, the bottom of the smoke inlet through hole is correspondingly arranged with the top of the receiving groove, a spray pipe is fixedly connected to the middle of the packing rack, an upper spray disc is fixedly connected to the top of the spray pipe, a lower spray disc is fixedly connected to the middle of the spray pipe, and a plurality of spray heads are fixedly installed on the edges of the upper spray disc and the lower spray disc.

[0014] As a further solution of the present invention: a heat conducting cover is arranged in the middle of the smoke exhaust pipe, the bottom of the heat conducting cover is fixedly connected with the smoke inlet pipe, and the middle of the smoke exhaust pipe is bent and coiled and fixedly connected in the heat conducting cover.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the overall structure of the present invention is simple, there are few power devices, so the failure rate is low, and the installation and maintenance are convenient. At the same time, in the smoke inlet component of the present invention, by arranging a heat recovery chamber and a plurality of thermoelectric converters in the smoke inlet pipe, the heat in the flue gas is converted into electric energy during the flow of the flue gas for the operation of the whole device, realizing the recovery of the heat of the flue gas and reducing the energy consumption to the outside.

[0016] In order to effectively remove haze from smoke, the filter assembly of the present invention is provided with a smoke guide cavity and a dust collecting box to divert part of the dust and impurity particles at the bottom of the smoke, so that the dust and impurity particles fall into the dust collecting box for easy cleaning and discharge; in the process of the smoke going down along the smoke guide cavity and flowing out from the diversion to the bottom, most of the smoke and dust particles will continue to rush forward for a distance by inertia, and then be filtered and intercepted by a number of receiving filter screens;

[0017] The purification component of the present invention is provided with several groups of fillers to react and adsorb the flue gas, and at the same time, a treatment agent is sent out through several spray heads to purify the flue gas and react with the flue gas to produce droplets, and the droplets obtained by the reaction are recovered in conjunction with structures such as a receiving tank provided below the purification component, so as to facilitate the utilization of compounds with recovery value in the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A perspective view of the present invention;

[0019] Figure 2 is a cross-sectional view of the smoke inlet pipe of the present invention;

[0020] Figure 3 is a cross-sectional view of the flow diversion component of the present invention;

[0021] Figure 4 is a cross-sectional view of the filter assembly of the present invention;

[0022] Figure 5 It is a cross-sectional view of the purification component of the present invention.

[0023] In the figure: 1. Smoke inlet assembly; 101. Smoke inlet pipe; 102. Smoke inlet chamber; 103. Partition plate; 104. Thermoelectric converter; 105. Heat recovery chamber; 106. Air inlet; 107. Air guide frame; 108. Air outlet; 109. Bend pipe; 110. Delivery pump; 111. Heat conduction plate; 2. Diverter assembly; 201. Diverter box; 202. Delivery pipe; 203. Receiver filter; 204. Smoke guide chamber; 205. Dust collector Box; 3, purification component; 301, purification tower; 302, filling rack; 303, filling; 304, spray pipe; 305, lower spray plate; 306, upper spray plate; 307, smoke exhaust pipe; 308, smoke inlet hood; 309, heat conduction hood; 4, filter component; 401, filter flue; 402, receiving cover plate; 403, water collection port; 404, liquid collecting pipe; 405, smoke guide plate; 406, flue filter; 407, lifting plate. DETAILED DESCRIPTION

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figure 1 , in the embodiment of the present invention, a comprehensive flue gas utilization and haze removal system includes a smoke inlet assembly 1. The smoke inlet assembly 1 includes a smoke inlet pipe 101, and the smoke inlet pipe 101 is set to be flat to obtain the largest heat exchange contact surface and facilitate the installation between the remaining equipment and the smoke inlet pipe 101. One end of the smoke inlet pipe 101 is fixedly connected to a bent pipe 109 bent upward, and one end of the bent pipe 109 is fixedly connected to a conveying pump 110. The suction effect of the conveying pump 110 provides power for the flow of the flue gas.

[0026] Please refer to Figure 2 , a partition plate 103 is fixedly connected to the middle of the smoke inlet pipe 101. An inlet smoke chamber 102 is arranged on the side of the partition plate 103 away from the heat conducting plate 111, and a regenerative chamber 105 is arranged on the side of the partition plate 103 close to the heat conducting plate 111. Two groups of symmetrically arranged thermoelectric converters 104 are fixedly installed inside the regenerative chamber 105. In this embodiment, the thermoelectric converter 104 adopts a thermoelectric sheet, and one sides of the two thermoelectric sheets are respectively arranged facing the inlet smoke chamber 102 and the heat conducting plate 111. By arranging the regenerative chamber 105 in the smoke inlet pipe 101, during the flow of the flue gas, the heat of the flue gas is recovered, and the thermoelectric converter 104 is used to convert the heat into electric energy for the overall operation of the equipment.

[0027] To increase the temperature difference between the two ends of the thermoelectric sheet and thus improve the thermoelectric conversion efficiency, an air inlet 106 is opened at the top of one side of the smoke inlet pipe 101, a wind guiding frame 107 is fixedly connected to the other side of the smoke inlet pipe 101, a wind guiding fan is fixedly installed inside the wind guiding frame 107, an air outlet 108 is opened at the top of the wind guiding frame 107, and dust-proof nets are fixedly connected to the inner walls of the air inlet 106 and the air outlet 108. By starting the wind guiding fan, the airflow is driven to flow between the two groups of thermoelectric converters 104 to reduce the temperature. When necessary, the part outside the end of the smoke inlet pipe 101 can be wholly placed in cooling water, and the cooling water is heated by using the temperature of the flue gas to realize the recovery of heat. Or the wind guiding fan may not be provided, and cooling water is introduced from the air inlet 106 and then sent out from the air outlet 108. The regenerative chamber 105 is used to heat the cooling water, and at the same time, the introduction of the cooling water cools the thermoelectric sheet, thereby increasing the temperature difference between the two sides of the thermoelectric sheet and improving the power generation efficiency.

[0028] Please refer to Figure 3, to achieve a preliminary separation of large particulate dust and other impurities mixed in the flue gas, a shunt assembly 2 is provided at the output end of the transfer pump 110. The bottom of the shunt box 201 is fixedly connected to the top of the smoke inlet pipe 101 through a heat conduction plate 111. The shunt assembly 2 includes a shunt box 201. One end of the shunt box 201 is fixedly connected to the output end of the transfer pump 110 through a transfer pipe 202. A smoke guide cavity 204 is provided on one side of the inner wall of the shunt box 201 close to the transfer pipe 202. A dust collection box 205 is snap-connected to the bottom of the smoke guide cavity 204. By providing the smoke guide cavity 204 and the dust collection box 205, some dust impurity particles at the bottom layer in the flue gas are shunted so that they fall into the dust collection box 205, facilitating cleaning and discharging. On the other side of the inner wall of the shunt box 201, a dust filtering cavity is provided. A plurality of inclined receiving filter meshes 203 are fixedly connected to the inner wall of the dust filtering cavity. During the process that the flue gas descends along the smoke guide cavity 204 and flows out from the bottom of the shunt box 201, due to inertia, most of the soot particles will continue to rush forward for a certain distance, and then are filtered and intercepted by a plurality of receiving filter meshes 203.

[0029] Please refer to Figure 4 , a filtering assembly 4 is provided on one side of the shunt assembly 2. The filtering assembly 4 includes a filtering flue 401. A plurality of flue filter meshes 406 are snap-connected to the middle of the filtering flue 401. A lifting plate 407 is fixedly connected to the top of each of the plurality of flue filter meshes 406, facilitating the removal of the flue filter meshes 406 for replacement and cleaning. One end of the filtering flue communicates with the shunt box 201. The bottom of the filtering flue is fixedly connected to the top of the smoke inlet pipe 101 through a heat conduction plate 111, facilitating the transfer of the heat of the filtering flue to the smoke inlet pipe 101 for heat recovery.

[0030] Please refer to Figure 4 and Figure 5 , a purification assembly 3 is provided at one end of the filtering assembly 4. The purification assembly 3 includes a purification tower 301. A plurality of packing racks 302 are fixedly installed in the middle of the inner wall of the purification tower 301. The inner walls of the plurality of packing racks 302 are filled with packing 303. The flue gas passing through is filtered and purified by the packing 303 in the packing racks 302.

[0031] Please refer to Figure 5 , a smoke inlet hood 308 is fixedly connected to the bottom of the purification tower 301. A smoke inlet opening is provided in the middle of the smoke inlet hood 308. The bottom of the smoke inlet opening corresponds to the top of the receiving groove. A spray pipe 304 is fixedly connected to the middle of the packing rack 302. An upper spray tray 306 is fixedly connected to the top of the spray pipe 304. A lower spray tray 305 is fixedly connected to the middle of the spray pipe 304. A plurality of spray heads are fixedly installed on the edges of the upper spray tray 306 and the lower spray tray 305. Treatment agent is sent out through the plurality of spray heads to purify the flue gas and react with the flue gas to generate droplets, so as to recover the target compounds contained in the flue gas.

[0032] Please refer to Figure 4 Figure 4 , for recovering the droplets obtained from the reaction, one end of the inner wall of the flue duct 401 is fixedly connected with a receiving cover plate 402. The top of the receiving cover plate 402 is recessed downward to form a receiving groove. A water collecting port 403 is opened in the middle of the receiving groove. One side of the receiving cover plate 402 is fixedly connected with a liquid collecting pipe 404. The upper part of the receiving groove is correspondingly arranged with the bottom of the purification component 3; One side of the receiving cover plate 402 close to the flow dividing box 201 is fixedly connected with a smoke guiding plate 405. The top of the smoke guiding plate 405 is inclined, so as to facilitate the upward movement of the flue gas along the smoke guiding plate 405 and enter the purification tower 301.

[0033] Please refer to Figure 1 Figure 1 , to fully recover the residual heat in the flue gas, a smoke exhaust pipe 307 is fixedly connected to the top of the purification tower 301. A heat conducting cover 309 is arranged in the middle of the smoke exhaust pipe 307. The bottom of the heat conducting cover 309 is fixedly connected with the smoke inlet pipe 101. The middle part of the smoke exhaust pipe 307 is bent and coiled and fixedly connected in the heat conducting cover 309.

[0034] When the present invention is in use, the flue gas is sent into the smoke inlet cavity 102 of the smoke inlet pipe 101, and the flow of the flue gas is driven by starting the delivery pump 110; During the process of the flue gas flowing through the smoke inlet pipe 101, the heat in the flue gas heats up the thermoelectric chips on the side facing the smoke inlet cavity 102 in the regenerative cavity 105, generating a temperature difference on both sides of the thermoelectric chips, and then generating electric energy;

[0035] When the flue gas is pumped by the delivery pump 110 and enters the flow dividing box 201 through the delivery pipe 202, part of the larger dust particles at the bottom layer of the flue gas fall into the dust collection box 205, and part of the soot particles move forward by inertia, and then are filtered and intercepted by a plurality of receiving filter meshes 203;

[0036] Then the flue gas enters the filtering air duct along the smoke guiding cavity 204. After being blocked and filtered by a plurality of flue duct filter meshes 406, it enters the purification tower 301 through the smoke inlet cover plate 308. After being adsorbed and reacted by the filler 303, a treatment agent is sent to the spray pipe 304 by an external liquid material pump and a liquid material pipe, and then sent out by a plurality of spray heads on the upper spray tray 306 and the lower spray tray 305 to purify the flue gas and react with the flue gas to generate droplets, so as to recover the valuable compounds contained in the flue gas. The droplets obtained from the reaction fall into the receiving groove, flow from the receiving port to the lower part of the receiving cover plate 402, and are discharged and collected through the liquid collecting pipe 404; The treated flue gas is discharged through the smoke exhaust pipe 307, and the residual heat is recovered through the heat conduction between the heat conducting cover 309 and the smoke inlet pipe 101 during the discharging process.

[0037] The above are only the preferred embodiments of the present invention, and there is no limitation to the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the above-disclosed technical content without departing from the technical solution of the present invention. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A comprehensive utilization and haze removal system for flue gas, characterized in that, The intake pipe (101) is flat, one end of the intake pipe (101) is fixedly connected to a bent pipe (109) bent upward, one end of the bent pipe (109) is fixedly connected to a transfer pump (110), the output end of the transfer pump (110) is provided with a flow splitting assembly (2), and one side of the flow splitting assembly (2) is provided with a filtering assembly (4); one end of the filtering assembly (4) is provided with a purification assembly (3); The bottom of the flow splitting assembly (2) and the bottom of the filtering assembly (4) are both fixedly connected to the top of the intake pipe (101) through a heat conducting plate (111). A partition plate (103) is fixedly connected to the middle of the intake pipe (101). An intake chamber (102) is arranged on the side of the partition plate (103) away from the heat conducting plate (111), and a heat recovery chamber (105) is arranged on the side of the partition plate (103) close to the heat conducting plate (111). Two symmetrically arranged thermoelectric converters (104) are fixedly installed inside the heat recovery chamber (105); An air inlet (106) is opened at the top of one side of the intake chamber (102), a wind guiding frame (107) is fixedly connected to the other side of the intake chamber (102), a wind guiding fan is fixedly installed inside the wind guiding frame (107), an air outlet (108) is opened at the top of the wind guiding frame (107), and dust-proof nets are fixedly connected to the inner walls of the air inlet (106) and the air outlet (108); The flow splitting assembly (2) includes a flow splitting box (201). One end of the flow splitting box (201) is fixedly connected to the output end of the transfer pump (110) through a transfer pipe (202). A smoke guiding chamber (204) is arranged on one side of the inner wall of the flow splitting box (201) close to the transfer pipe (202), and a dust collecting box (205) is snap-connected to the bottom of the smoke guiding chamber (204); on the other side of the inner wall of the flow splitting box (201) is arranged a dust filtering chamber, and a plurality of inclined receiving filter meshes (203) are fixedly connected to the inner wall of the dust filtering chamber; during the process that the flue gas descends along the smoke guiding chamber (204) and flows out from the bottom of the flow splitting box (201), due to inertia, most of the soot particles will continue to rush forward for a certain distance, and then are filtered and intercepted by a plurality of receiving filter meshes (203).

2. The integrated flue gas utilization and haze removal system according to claim 1, characterized in that On the other side of the inner wall of the flow splitting box (201) is arranged a dust filtering chamber, and a plurality of inclined receiving filter meshes (203) are fixedly connected to the inner wall of the dust filtering chamber.

3. The integrated flue gas utilization and haze removal system according to claim 1, characterized in that, The filtering assembly (4) includes a filtering flue (401). A plurality of flue filter meshes (406) are snap-connected to the middle of the filtering flue (401), and a lifting plate (407) is fixedly connected to the top of each of the plurality of flue filter meshes (406).

4. The integrated flue gas utilization and haze removal system according to claim 3, characterized in that, One end of the inner wall of the filtering flue (401) is fixedly connected to a receiving cover plate (402). The top of the receiving cover plate (402) is recessed downward to form a receiving groove, a water collecting port (403) is opened in the middle of the receiving groove, a liquid collecting pipe (404) is fixedly connected to one side of the receiving cover plate (402), and the upper part of the receiving groove is correspondingly arranged with the bottom of the purification assembly (3).

5. The integrated flue gas utilization and haze removal system according to claim 4, characterized in that, One side of the receiving cover plate (402) close to the flow splitting box (201) is fixedly connected with a smoke guide plate (405).

6. The integrated flue gas utilization and haze removal system according to claim 1, characterized in that The purification component (3) includes a purification tower (301). In the middle of the inner wall of the purification tower (301), a plurality of packing racks (302) are fixedly installed. Packings (303) are filled in the inner walls of the plurality of packing racks (302). The top of the purification tower (301) is fixedly connected with a smoke exhaust pipe (307).

7. The integrated flue gas utilization and haze removal system according to claim 6, characterized in that The bottom of the purification tower (301) is fixedly connected with a smoke inlet hood (308). A smoke inlet through hole is formed in the middle of the smoke inlet hood (308). The bottom of the smoke inlet through hole is correspondingly arranged with the top of the receiving groove. A spray pipe (304) is fixedly connected to the middle of the packing rack (302). The top of the spray pipe (304) is fixedly connected with an upper spray tray (306). The middle of the spray pipe (304) is fixedly connected with a lower spray tray (305). A plurality of spray heads are fixedly installed on the edges of the upper spray tray (306) and the lower spray tray (305).

8. The integrated flue gas utilization and haze removal system according to claim 6, wherein A heat conduction cover (309) is arranged in the middle of the smoke exhaust pipe (307). The bottom of the heat conduction cover (309) is fixedly connected with the smoke inlet pipe (101).

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