Smoke dust treatment equipment for coal-fired boiler

Abstract

The utility model discloses coal-fired boiler smoke dust treatment equipment which comprises a boiler and a filtering heat exchange box, and the boiler is connected to the filtering heat exchange box through a heat exchange dust removal structure. The heat exchange dust removal structure comprises an S-shaped drainage pipe, a partition plate, a filtering drainage pipe, a filtering bag, a liquid drainage pipe, a transfer drainage pipe, a stirring driving shaft, stirring blades, a stirring driving disc, a stirring transmission disc, stirring driving magnets, stirring blades and an auxiliary dust removal assembly. The utility model relates to the technical field of boilers, smoke discharged by a boiler is filtered through a heat exchange dust removal structure, meanwhile, the smoke is denitrated through an auxiliary dust removal assembly, and heat in the smoke is drained to liquid between a pair of partition plates through a plurality of filtering drainage pipes to be stirred, mixed and absorbed. The heat is drained through the multi-section rotating water flow, so that the heat in the smoke and the heat generated by the chemical reaction are recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of boilers, in particular to smoke control equipment for coal-fired boilers. Background Art

[0002] During the coal-adding period during the operation of a coal-fired boiler, the volatile matter in the coal suddenly evaporates and cracks, generating a large amount of combustible gas. Due to insufficient furnace temperature and oxygen supply conditions, a large amount of black smoke is generated. The black smoke contains a large amount of combustible solids and combustible gases. The exhaust temperature of a general boiler is mostly 200-250°C, which not only pollutes the air quality, but also causes a large amount of energy waste. There may already be technical means to solve the above problems in the prior art, but this case intends to provide an alternative or replacement technical solution. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: A coal-fired boiler smoke treatment device, comprising: a boiler and a filter heat exchange box, wherein the boiler is connected to the filter heat exchange box through a heat exchange and dust removal structure;

[0004] The heat exchange dust removal structure comprises: an S-shaped drainage pipe, a pair of partition plates, a plurality of filter drainage pipes, a plurality of filter bags, a liquid drainage pipe, a transfer drainage pipe, a stirring drive shaft, a plurality of stirring blades, a plurality of stirring drive discs, a plurality of stirring transmission discs, a plurality of stirring drive magnets, a plurality of stirring blades and an auxiliary dust removal component;

[0005] The S-shaped drainage pipe is connected to the boiler and the filter heat exchange box, a pair of partition plates are installed on the inner side of the boiler, a number of the filter drainage pipes are evenly inserted on the pair of partition plates, a number of the filter bags are respectively installed on the inner sides of a number of the filter drainage pipes, the liquid drainage pipe and the transfer drainage pipe are respectively inserted on the filter heat exchange box, and the transfer drainage pipe is connected to the boiler, the stirring drive shaft is inserted on a pair of partition plates through a bearing, a number of the stirring blades are evenly installed on the stirring drive shaft, a number of the stirring drive discs are evenly installed on the stirring drive shaft, a number of the stirring drive discs are evenly inserted on the number of the filter drainage pipes through bearings, a number of the stirring drive magnets are respectively installed on a number of the stirring drive discs and a number of the stirring drive discs, a number of the stirring mixing sheets are respectively installed on a number of the stirring drive discs and a number of the stirring drive discs, and the auxiliary dust removal assembly is installed on the partition plate;

[0006] It should be noted that, in the above, the smoke inside the boiler is drained to the inside of the filter heat exchange box through an S-shaped drainage pipe, the boiler is divided into three sections through a pair of partitions, the space between the lowest end and the top end of the boiler is connected through a number of filter drainage pipes, the drained smoke is filtered through filter bags inside a number of filter drainage pipes, and the filter bags are assisted by auxiliary dust removal components. At the same time, the heat in the smoke is drained to the liquid between the pair of partitions through a number of filter drainage pipes, and the balance between the liquid drainage pipe and the transfer drainage pipe is achieved, so as to drain the low-temperature liquid to the outside of the number of filter drainage pipes, thereby draining the heat on the number of filter drainage pipes and discharging it, and at the same time through The flow of smoke inside the filter heat exchange box drives the stirring blades thereon to rotate through the flow of smoke, and the rotation of the stirring blades drives the stirring drive shaft thereon, and the stirring drive disk thereon is driven to rotate through the stirring drive shaft, and a number of stirring drive disks respectively drive a number of stirring drive magnets thereon, and a number of rotating stirring drive magnets respectively drive the stirring drive magnets on a number of stirring drive disks (the principle of magnetic transmission), and a number of rotating stirring drive magnets respectively drive the stirring drive disks thereon, and a number of stirring drive disks respectively drive the stirring mixing plates thereon, thereby mixing and stirring the liquid between a pair of partition plates, thereby achieving the effect of rapid heat dissipation.

[0007] Preferably, the auxiliary dust removal assembly comprises: a plurality of spray rings, a spray pump, a spray box and a spray diversion pipe;

[0008] A plurality of the spray rings are evenly mounted on a plurality of the filter drainage pipes, the spray box is mounted on the outside of the filter heat exchange box, the spray pump is mounted on the spray box, the spray diversion pipe is mounted on the spray pump, and the spray diversion pipe is connected to a plurality of the spray rings;

[0009] It should be noted that, in the above, the de-solidified liquid inside the spray box is drained to the inside of the spray diversion pipe through the spray box, and the de-solidified liquid is drained to the inside of several spray rings through the spray diversion pipe, and several filter bags are sprayed through the several spray rings.

[0010] Preferably, a trumpet-shaped gathering sheet is provided on the inner side of the filtering and heat exchanging box.

[0011] Preferably, a flow relief valve is provided on the filtering and heat exchanging box.

[0012] Preferably, a plurality of the filter drainage tubes are respectively provided with drainage ports.

[0013] Preferably, a pressure valve is provided on the filter heat exchange box. Beneficial Effects

[0014] The utility model provides a coal-fired boiler smoke treatment device. Compared with the prior art, the coal-fired boiler smoke treatment device has the following beneficial effects: the smoke discharged from the boiler is filtered through a heat exchange dust removal structure, and the smoke is denitrated through an auxiliary dust removal component, and the heat in the smoke is drained to the liquid between a pair of partition plates through a plurality of filter drainage pipes for mixing and absorbing heat, and the heat is drained through a multi-stage rotating water flow, so as to recover the heat in the smoke and the heat generated by the chemical reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view and cross-sectional schematic diagram of a smoke treatment device for a coal-fired boiler described in the utility model.

[0016] Figure 2 It is a side sectional schematic diagram of a coal-fired boiler smoke control device described in the utility model.

[0017] In the figure: 1. boiler; 2. filter heat exchange box; 3. S-shaped drainage pipe; 4. partition plate; 5. filter drainage pipe; 6. filter bag; 7. liquid drainage pipe; 8. transfer drainage pipe; 9. stirring drive shaft; 10. stirring blade; 11. stirring drive disc; 12. stirring transmission disc; 13. stirring drive magnet; 14. stirring mixing piece; 15. spray ring; 16. spray pump; 17. spray box; 18. spray diversion pipe. DETAILED DESCRIPTION

[0018] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0019] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and appropriate controllers and encoders should be selected according to actual conditions to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principles and processes, and no longer explains the electrical control. Example

[0020] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-2As shown, the boiler 1 is connected to the filter heat exchange box 2 through a heat exchange dust removal structure; the heat exchange dust removal structure includes: an S-shaped drainage pipe 3, a pair of partition plates 4, a plurality of filter drainage pipes 5, a plurality of filter bags 6, a liquid drainage pipe 7, a transfer drainage pipe 8, a stirring drive shaft 9, a plurality of stirring blades 10, a plurality of stirring drive discs 11, a plurality of stirring drive discs 12, a plurality of stirring drive magnets 13, a plurality of stirring blades 10 and an auxiliary dust removal component; the S-shaped drainage pipe 3 is connected to the boiler 1 and the filter heat exchange box 2, and a pair of the partition plates 4 are installed On the inner side of the boiler 1, a plurality of the filter drainage pipes 5 are evenly inserted on a pair of the partition plates 4, a plurality of the filter bags 6 are respectively installed on the inner sides of the plurality of the filter drainage pipes 5, the liquid drainage pipe 7 and the transfer drainage pipe 8 are respectively inserted on the filter heat exchange box 2, and the transfer drainage pipe 8 is connected to the boiler 1, the stirring drive shaft 9 is inserted on a pair of the partition plates 4 through a bearing, a plurality of the stirring blades 10 are evenly installed on the stirring drive shaft 9, and a plurality of the stirring drive discs 11 are evenly installed on the stirring drive On the shaft 9, a plurality of the stirring drive discs 12 are evenly inserted on the plurality of the filtering drainage pipes 5 through bearings, a plurality of the stirring drive magnets 13 are respectively installed on the plurality of the stirring drive discs 11 and the plurality of the stirring drive discs 12, a plurality of the stirring mixing pieces 14 are respectively installed on the plurality of the stirring drive discs 11 and the plurality of the stirring drive discs 12, and the auxiliary dust removal assembly is installed on the partition plate 4; the auxiliary dust removal assembly includes: a plurality of spray rings 15, a spray pump 16, a spray box 17 and a spray diversion pipe 1 8; a number of the spray rings 15 are evenly installed on a number of the filter drainage pipes 5, the spray box 17 is installed on the outside of the filter heat exchange box 2, the spray pump 16 is installed on the spray box 17, the spray diversion pipe 18 is installed on the spray pump 16, and the spray diversion pipe 18 is connected to a number of the spray rings 15; a trumpet-shaped gathering sheet is arranged on the inner side of the filter heat exchange box 2; a discharge valve is arranged on the filter heat exchange box 2; drainage ports are respectively opened on a number of the filter drainage pipes 5; a pressure valve is arranged on the filter heat exchange box 2.

[0021] According to the attached Figure 1-2It is concluded that the smoke inside the boiler 1 is drained to the inside of the filter heat exchange box 2 through the S-shaped drainage pipe 3, the boiler 1 is divided into three sections through a pair of partition plates 4, the space between the lowest end and the top of the boiler 1 is connected through a number of filter drainage pipes 5, the drained smoke is filtered through the filter bags 6 inside the filter drainage pipes 5, and the filter bags 6 are assisted by the auxiliary dust removal components. At the same time, the heat in the smoke is drained to the liquid between the pair of partition plates 4 through the filter drainage pipes 5, and the balance between the liquid drainage pipe 7 and the transfer drainage pipe 8 is achieved, so as to drain the low-temperature liquid to the outside of the filter drainage pipes 5, so as to drain and discharge the heat on the filter drainage pipes 5, and at the same time, the flow of smoke inside the filter heat exchange box 2 drives the stirring blades 10 thereon to rotate, and the rotation of the stirring blades 10 drives the stirring blades thereon The stirring drive shaft 9 drives the stirring drive disc 11 thereon to rotate through the stirring drive shaft 9, and drives the stirring drive magnets 13 thereon through the plurality of stirring drive discs 11 respectively, and drives the stirring drive magnets 13 on the plurality of stirring transmission discs 12 respectively through the plurality of rotating stirring drive magnets 13 (the principle of magnetic transmission), and drives the stirring transmission discs 12 thereon through the plurality of rotating stirring drive magnets 13 respectively, and drives the stirring and mixing plates 14 thereon respectively through the plurality of stirring transmission discs 12, so as to mix and stir the liquid between the pair of partition plates 4, so as to achieve the effect of rapid heat dissipation; the de-solidified liquid inside the spray box 17 is drained to the inner side of the spray diverter pipe 18 through the spray diverter pipe 18, and the de-solidified liquid is drained to the inner side of the plurality of spray rings 15 through the spray diverter pipe 18, and the plurality of filter bags 6 are sprayed through the plurality of spray rings 15.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal-fired boiler smoke control device, comprising: A boiler and a filter heat exchange box, characterized in that the boiler is connected to the filter heat exchange box through a heat exchange and dust removal structure; The heat exchange dust removal structure comprises: an S-shaped drainage pipe, a pair of partition plates, a plurality of filter drainage pipes, a plurality of filter bags, a liquid drainage pipe, a transfer drainage pipe, a stirring drive shaft, a plurality of stirring blades, a plurality of stirring drive discs, a plurality of stirring transmission discs, a plurality of stirring drive magnets, a plurality of stirring mixing sheets and an auxiliary dust removal component; The S-shaped drainage pipe is connected to the boiler and the filter heat exchange box, a pair of partition plates are installed on the inner side of the boiler, a number of the filter drainage pipes are evenly inserted on the pair of partition plates, a number of the filter bags are respectively installed on the inner sides of a number of the filter drainage pipes, the liquid drainage pipe and the transfer drainage pipe are respectively inserted on the filter heat exchange box, and the transfer drainage pipe is connected to the boiler, the stirring drive shaft is inserted on a pair of partition plates through a bearing, a number of the stirring blades are evenly installed on the stirring drive shaft, a number of the stirring drive discs are evenly installed on the stirring drive shaft, a number of the stirring drive discs are evenly inserted on the number of the filter drainage pipes through bearings, a number of the stirring drive magnets are respectively installed on a number of the stirring drive discs and a number of the stirring drive discs, a number of the stirring mixing sheets are respectively installed on a number of the stirring drive discs and a number of the stirring drive discs, and the auxiliary dust removal component is installed on the partition plate.

2. A coal-fired boiler smoke treatment device according to claim 1, characterized in that: The auxiliary dust removal assembly includes: a plurality of spray rings, a spray pump, a spray box and a spray diversion pipe; A plurality of the spray rings are evenly installed on a plurality of the filter drainage pipes, the spray box is installed on the outside of the filter heat exchange box, the spray pump is installed on the spray box, the spray diversion pipe is installed on the spray pump, and the spray diversion pipe is connected to a plurality of the spray rings.

3. A coal-fired boiler smoke treatment device according to claim 2, characterized in that: A trumpet-shaped gathering sheet is arranged inside the filtering and heat exchanging box.

4. A coal-fired boiler smoke treatment device according to claim 3, characterized in that: The filtering and heat exchanging box is provided with a flow relief valve.

5. A coal-fired boiler smoke treatment device according to claim 4, characterized in that: A plurality of the filtering and drainage tubes are respectively provided with drainage ports.

6. A coal-fired boiler smoke treatment device according to claim 5, characterized in that: The filtering and heat exchanging box is provided with a pressure valve.

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