Desulfurization, denitration and dust removal device for boiler

Abstract

The utility model discloses a boiler desulfurization denitration dust removal device which comprises a box body, a vibrating screen is arranged on the lower portion in the box body, a dust removal assembly is fixedly connected to the position, located on the inner wall of the box body, of the upper portion of the vibrating screen, two flue gas channels are formed in the upper portion in the box body, and sliding grooves are formed in the inner walls of the two flue gas channels. And two sliding grooves are formed in the top face of the box body, sealing plates are slidably connected into the two sliding grooves, filter paper is arranged above the two smoke channels, smoke exhaust pipes are installed at the positions, corresponding to the two filter paper, of the top face of the box body, and a smoke inlet pipe is fixedly installed on one side of the outer wall of the box body. According to the dust removal device, the dust removal assembly is arranged, the driving motor drives the shifting rod to rotate in the dust removal process, the pulley and the connecting rod can be shifted to swing, meanwhile, the spraying pipe swings along with the shifting rod, the smoke spraying range can be enlarged, the smoke spraying dust removal effect is improved, practicability is high, and the dust removal device is worthy of popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas dust removal, in particular to a boiler desulfurization, denitrification and dust removal device. Background Technique

[0002] Waste gas purification mainly refers to the work of treating industrial waste gas generated in industrial sites, such as dust particles, flue gas soot, odor gas and toxic and harmful gases. Desulfurization, denitrification and dust removal of industrial waste gas are crucial. With the rapid development of the economy, the energy structure dominated by coal has greatly increased the emissions of coal-fired flue gas in China. Sulfur dioxide and nitrogen oxides are becoming more and more serious, and a series of problems have arisen. Acid rain, sulfate aerosols and photochemical smog generated by sulfur dioxide and nitrogen oxides will seriously threaten human health, harm plant growth, corrode metals and damage the ecological environment, etc. These pollutants have seriously affected the lives of the people and the development of the national economy. Therefore, it is necessary to purify and treat them.

[0003] The existing technology has the following problems:

[0004] After a large number of searches, it is found that the patent document with the application number CN202121116659.5 discloses a desulfurization, denitrification and dust removal device. The above patent still has problems in the actual use process. More obviously, the spraying range of the flue gas is limited, which will affect the spraying effect of the flue gas.

[0005] Therefore, we propose a boiler desulfurization, denitrification and dust removal device to solve the above disadvantages. Content of the Utility Model

[0006] The purpose of the utility model is to provide a boiler desulfurization, denitrification and dust removal device to solve the shortcomings existing in the prior art.

[0007] To achieve the above purpose, the utility model adopts the following technical scheme: A boiler desulfurization, denitrification and dust removal device includes a box body. A vibrating screen is arranged below the interior of the box body, and a dust removal component is fixedly connected to the inner wall of the box body above the vibrating screen. Two flue gas channels are opened above the interior of the box body, and sliding grooves are opened on the inner walls of the two flue gas channels. A sealing plate is slidably connected in the two sliding grooves. A filter paper is arranged above the two flue gas channels. Smoke exhaust pipes are installed on the top surface of the box body corresponding to the positions of the two filter papers. A smoke inlet pipe is fixedly installed on one side of the outer wall of the box body. Second sealing doors and first sealing doors are respectively hinged on the surface of the box body through hinges corresponding to the positions of the flue gas channels and the filter paper.

[0008] Preferably, the dust removal assembly includes a water pump, a bracket, a supporting frame, a connecting rod, a spray pipe, a spray head, a spring, a water pipe, a pulley, a drive motor and a lever. The bracket is fixedly connected to the inner wall of the box, a drive motor is fixedly installed on one side of the bracket, and a lever is installed on the output end of the drive motor. A supporting frame is welded to the bottom surface of the bracket, and a connecting rod is rotatably connected to the supporting frame. A spray pipe is installed at one end of the connecting rod, and a spray head is installed on the spray pipe. A pulley is installed at the other end of the connecting rod, and the pulley is used in conjunction with the lever. A spring is installed between the supporting frame and the spray pipe, a water pump is fixedly installed on the outer wall of the box, and a water pipe is installed at the water outlet end of the water pump, and the water pipe is connected to the spray pipe through a tee.

[0009] Preferably, a control panel is fixedly mounted on the outer wall of the box, and the control panel is electrically connected to the water pump drive motor via a wire.

[0010] Preferably, a slag discharge pipe is fixedly installed on the bottom surface of the box body, and a control valve is fixedly installed on the surface of the slag discharge pipe.

[0011] Preferably, there are multiple spray pipes, and the multiple spray pipes are equidistantly distributed on the bracket.

[0012] Preferably, there are multiple spray heads, and the multiple spray heads are distributed in a circular array on the surface of the spray pipe.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, a dust removal component is provided. During the dust removal process, the motor drives the lever to rotate, which can drive the pulley and the connecting rod to swing. At the same time, the spray pipe follows the swing, which not only increases the spray range of the flue gas, but also improves the spray dust removal effect of the flue gas. It is highly practical and worthy of promotion.

[0015] 2. In the utility model, two filter papers are provided and used alternately. When one filter paper is replaced, the smoke passage under the filter paper is first closed, and then the smoke passage under the other filter paper is opened. At this time, the smoke can be discharged through the other filter paper, which can achieve the effect of continuous operation. There is no need to stop the machine when replacing the filter paper, thereby improving the dust removal efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A cross-sectional view of a boiler desulfurization, denitrification and dust removal device proposed by the present utility model;

[0018] Figure 2 A schematic diagram of the external structure of a boiler desulfurization, denitrification and dust removal device proposed by the present utility model;

[0019] Figure 3 A schematic diagram of the structure of the dust removal component;

[0020] Figure 4 A schematic diagram of the structure of the carrier;

[0021] Figure 5 A schematic diagram of the structure of the drive motor and the lever;

[0022] Legend description:

[0023] 1. Box body; 2. Smoke inlet pipe; 3. Dust removal component; 31. Water pump; 32. Bracket; 33. Carrier; 34. Connecting rod; 35. Spray pipe; 36. Spray head; 37. Spring; 38. Water pipe; 39. Pulley; 310. Drive motor; 311. Lever; 4. Vibration sieve; 5. Slag discharge pipe; 6. Flue gas passage; 7. Filter paper; 8. Smoke exhaust pipe; 9. Slide groove; 10. Sealing plate; 11. Control panel; 12. First sealing door; 13. Second sealing door. Specific implementation manners

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

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; in addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] Please refer to Figures 1-5 , a boiler desulfurization, denitrification and dust removal device, which includes a box body 1. A vibrating screen 4 is arranged below the interior of the box body 1, and a dust removal component 3 is fixedly connected to the inner wall of the box body 1 above the vibrating screen 4. Two flue gas channels 6 are opened above the interior of the box body 1, and sliding grooves 9 are opened on the inner walls of the two flue gas channels 6. A sealing plate 10 is slidably connected in the two sliding grooves 9. Filter papers 7 are arranged above the two flue gas channels 6. Smoke exhaust pipes 8 are installed on the top surface of the box body 1 corresponding to the positions of the two filter papers 7. A smoke inlet pipe 2 is fixedly installed on one side of the outer wall of the box body 1. Second sealing doors 13 and first sealing doors 12 are respectively hinged to the surface of the box body 1 corresponding to the positions of the flue gas channels 6 and the filter papers 7 through hinges.

[0027] In this embodiment: The dust removal component 3 includes a water pump 31, a bracket 32, a carrier 33, a connecting rod 34, a spray pipe 35, a spray head 36, a spring 37, a water pipe 38, a pulley 39, a driving motor 310 and a dial rod 311. The bracket 32 is fixedly connected to the inner wall of the box body 1. A driving motor 310 is fixedly installed on one side of the bracket 32, and a dial rod 311 is installed at the output end of the driving motor 310. A carrier 33 is welded to the bottom surface of the bracket 32, and a connecting rod 34 is rotatably connected to the carrier 33. A spray pipe 35 is installed at one end of the connecting rod 34, and a spray head 36 is installed on the spray pipe 35. A pulley 39 is installed at the other end of the connecting rod 34, and the pulley 39 is used in cooperation with the dial rod 311. A spring 37 is installed between the carrier 33 and the spray pipe 35. A water pump 31 is fixedly installed on the outer wall of the box body 1, and a water pipe 38 is installed at the water outlet end of the water pump 31, and the water pipe 38 is connected to the spray pipe 35 through a tee.

[0028] Specifically, when in use, the smoke inlet pipe 2 is connected to the device that generates smoke, and the smoke enters the box body 1. After the smoke passes through the dust removal component 3, the harmful substances contained in the smoke can be subjected to dust reduction treatment. Water mist is used to absorb impurities in the smoke, and the specific gravity of the impurities is increased, so that the impurities fall and do not follow the smoke out of the smoke, further ensuring the smoke outflow. The heavier impurities fall on the vibrating screen 4 and are discharged. The smoke is filtered by the filter paper 7, and the tiny impurities are filtered out and discharged from the box body 1 through the smoke exhaust pipe 8. During the dust removal process, the driving motor 310 drives the lever 311 to rotate, which can slide The wheel 39 and the connecting rod 34 swing, and at the same time the spray pipe 35 follows the swing, which not only increases the spray range of the flue gas, but also improves the spray dust removal effect of the flue gas. It is highly practical and worthy of promotion. By setting two filter papers 7, the two filter papers 7 are used alternately. When one filter paper 7 is replaced, the flue gas channel 6 under the filter paper 7 is first closed, and then the flue gas channel 6 under the other filter paper 7 is opened. At this time, the flue gas can be discharged through the other filter paper 7, which can achieve the effect of continuous operation. There is no need to stop the machine when replacing the filter paper 7, thereby improving the dust removal efficiency.

[0029] In this embodiment, a control panel 11 is fixedly mounted on the outer wall of the box body 1 , and the control panel 11 is electrically connected to the water pump 31 driving motor 310 via a wire.

[0030] Specifically, it is a common circuit connection structure, which is commonplace for those skilled in the art and will not be described in detail here.

[0031] In this embodiment, a slag discharge pipe 5 is fixedly installed on the bottom surface of the box body 1 , and a control valve is fixedly installed on the surface of the slag discharge pipe 5 .

[0032] Specifically, the water after filtering out impurities can be discharged.

[0033] In this embodiment, a plurality of spray pipes 35 are provided, and the plurality of spray pipes 35 are evenly distributed on the bracket 32 .

[0034] Specifically, the effect and efficiency of water spraying on flue gas are improved.

[0035] In this embodiment, a plurality of spray heads 36 are provided, and the plurality of spray heads 36 are distributed on the surface of the spray pipe 35 in a circular array.

[0036] Specifically, the spray range of the flue gas is wider.

[0037] In this embodiment: the control panel 11 is an existing structure, and the control circuit can be implemented by simple programming by technicians in this field. It belongs to the common knowledge in this field and is only used without modification. Therefore, the control method and circuit connection are not described in detail.

[0038] Working principle: When in use, connect the smoke inlet pipe 2 to the device that generates flue gas. The flue gas enters the interior of the box body 1. After the flue gas passes through the dust removal component 3, the water mist adsorbs the impurities inside the flue gas. After being adsorbed by the water mist, the impurities become heavier. The heavier impurities fall on the vibrating screen 4 and are discharged. The flue gas passes through the filtration of the filter paper 7, and after filtering out the tiny impurities, it is discharged from the box body 1 through the exhaust pipe 8. During the dust removal process, the driving motor 310 drives the lever 311 to rotate, which can drive the pulley 39 and the connecting rod 34 to swing. At the same time, the spray pipe 35 swings accordingly, which can not only increase the spraying range of the flue gas, but also improve the spraying dust removal effect on the flue gas. It has strong practicability and is worthy of promotion. By setting two filter papers 7 and using them alternately, when one filter paper 7 needs to be replaced, first close the flue gas passage 6 below this filter paper 7, and then open the flue gas passage 6 below the other filter paper 7. At this time, the flue gas can be discharged through the other filter paper 7, which can achieve the effect of continuous operation, and there is no need to stop the machine when replacing the filter paper 7, improving the dust removal efficiency.

[0039] It should be noted that: The model and specification of the driving motor 310 of the water pump 31 need to be selected and determined according to the actual specifications of the device, etc. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated in detail.

[0040] The power supply and its principle of the driving motor 310 of the water pump 31 are clear to those skilled in the art and can be purchased on the market, so it will not be described in detail here.

[0041] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent replacements or changes, and should be covered by the protection scope of the present invention.

Claims

1. A boiler desulfurization, denitrification and dust removal device, comprising a box body (1), characterized in that, A vibrating screen (4) is arranged below the interior of the box body (1), and a dust removal component (3) is fixedly connected to the inner wall of the box body (1) above the vibrating screen (4). Two flue gas channels (6) are opened above the interior of the box body (1), and sliding grooves (9) are opened on the inner walls of the two flue gas channels (6). A sealing plate (10) is slidably connected in the two sliding grooves (9). Filter papers (7) are arranged above the two flue gas channels (6). Smoke exhaust pipes (8) are installed on the top surface of the box body (1) corresponding to the positions of the two filter papers (7). An inlet smoke pipe (2) is fixedly installed on one side of the outer wall of the box body (1). Second sealing doors (13) and first sealing doors (12) are respectively hinged on the surface of the box body (1) corresponding to the positions of the flue gas channels (6) and the filter papers (7) through hinges.

2. The boiler desulfurization, denitrification and dust removal device according to claim 1, characterized in that, The dust removal component (3) includes a water pump (31), a bracket (32), a carrier (33), a connecting rod (34), a spray pipe (35), a spray head (36), a spring (37), a water pipe (38), a pulley (39), a driving motor (310) and a lever (311). The bracket (32) is fixedly connected to the inner wall of the box body (1). A driving motor (310) is fixedly installed on one side of the bracket (32), and a lever (311) is installed at the output end of the driving motor (310). A carrier (33) is welded to the bottom surface of the bracket (32), and a connecting rod (34) is rotatably connected to the carrier (33). A spray pipe (35) is installed at one end of the connecting rod (34), and spray heads (36) are installed on the spray pipe (35). A pulley (39) is installed at the other end of the connecting rod (34), and the pulley (39) is used in cooperation with the lever (311). A spring (37) is installed between the carrier (33) and the spray pipe (35). A water pump (31) is fixedly installed on the outer wall of the box body (1), and a water pipe (38) is installed at the water outlet end of the water pump (31). The water pipe (38) is connected to the spray pipe (35) through a tee joint.

3. The boiler desulfurization, denitrification and dust removal device according to claim 2, characterized in that, A control panel (11) is fixedly installed on the outer wall of the box body (1), and the control panel (11) is electrically connected to the water pump (31) and the driving motor (310) through wires.

4. A boiler desulfurization, denitrification and dust removal device according to claim 1, characterized in that, A slag discharge pipe (5) is fixedly installed on the bottom surface of the box body (1), and a control valve is fixedly installed on the surface of the slag discharge pipe (5).

5. A boiler desulfurization, denitrification and dust removal device according to claim 2, characterized in that, A plurality of spray pipes (35) are provided, and the plurality of spray pipes (35) are equidistantly distributed on the bracket (32).

6. A boiler desulfurization, denitrification and dust removal device according to claim 2, characterized in that, A plurality of spray heads (36) are provided, and the plurality of spray heads (36) are annularly arrayed on the surface of the spray pipe (35).

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