Denitration device for waste incineration power generation

Abstract

The utility model relates to the technical field of flue gas denitration, in particular to a denitration device for waste incineration power generation, which comprises a box body, a first partition plate, a lifting seat, a cleaning mechanism and a spray pipe, an air inlet pipe is arranged at the bottom of the box body; a screening plate is horizontally arranged in the box body below the air inlet pipe; the first partition plate is horizontally arranged in the box body above the air inlet pipe, and a connecting channel is arranged in the middle of the first partition plate; the lifting seat is arranged above the first partition plate in a liftable manner under the action of the lifting mechanism, and a detachable first filter plate is arranged on the lifting seat; the cleaning mechanism is arranged below the first partition plate and is used for cleaning the bottom of the filter plate; the ammonia water tank is arranged on one side of the tank body, and a liquid outlet pipe is arranged on the ammonia water tank; the spraying pipe is horizontally arranged on the portion, above the lifting base, of the box body and swings under the action of the swing assembly, a plurality of atomizing nozzles are arranged on the spraying pipe, and one end of the spraying pipe is connected with the liquid outlet pipe through a rotary connector. The device has the advantages of high ammonia water utilization rate, high denitration efficiency and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas denitration, in particular to a denitration device for garbage incineration power generation. Background Art

[0002] With the rapid development of my country's economy, waste incineration power generation, as a new type of energy utilization, has received more and more attention. Waste incineration power generation can effectively reduce the volume of garbage, reduce environmental pollution, and realize resource recycling. However, during the waste incineration process, a large amount of harmful gases such as nitrogen oxides will be produced, which will have a serious impact on the environment. Therefore, the research and development of denitrification equipment for waste incineration power generation has important practical significance.

[0003] At present, the existing denitrification devices for waste incineration power generation are mainly of the following types: one is to use ammonia water as a reducing agent, atomize the ammonia water by spraying, and react with nitrogen oxides to achieve the denitrification effect; the other is to use a catalyst to increase the reaction activity of nitrogen oxides at high temperature, promote its combination with oxygen, and achieve the purpose of denitrification.

[0004] However, the existing denitrification devices have low ammonia utilization rate during the ammonia spray denitrification process, which is easy to cause environmental pollution. In addition, when cleaning the suspended solids in the flue gas, the filter plate is easily blocked, resulting in frequent shutdowns for cleaning, affecting the denitrification efficiency. Utility Model Content

[0005] In view of this, the utility model provides a denitration device for waste incineration power generation, aiming to solve the problems of low ammonia water utilization rate and low denitration efficiency in the prior art.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a denitrification device for waste incineration power generation, comprising:

[0007] The box body has an air inlet pipe at the bottom, a screening plate is horizontally arranged in the box body below the air inlet pipe, a drainage pipe is arranged on the box body below the screening plate, and an exhaust pipe is arranged on the top of the box body;

[0008] A first baffle, horizontally arranged in the box above the air inlet pipe, wherein a connecting channel is arranged in the middle of the first baffle;

[0009] A lifting seat is arranged above the first partition plate in a liftable manner under the action of the lifting mechanism, and a detachable first filter plate is arranged on the lifting seat. When the lifting seat is lowered, the lower end of the first filter plate extends into the connecting channel;

[0010] A cleaning mechanism, disposed below the first partition plate, for cleaning the bottom of the filter plate;

[0011] An ammonia water tank is arranged on one side of the box body and is provided with a liquid outlet pipe;

[0012] The spray pipe is horizontally arranged on the box above the lifting seat and swings under the action of the swing assembly. A plurality of atomizing nozzles are arranged on the spray pipe. One end of the spray pipe is connected to the liquid outlet pipe through a rotating joint.

[0013] A further improvement of the utility model is that the lifting mechanism comprises:

[0014] A first guide rod is vertically arranged on the lifting seat and is slidably connected with and penetrates the fixed seat on the box body;

[0015] Two first screw rods are arranged in parallel on the box body, and the first motor can drive the two first screw rods to rotate in the same direction through the transmission assembly;

[0016] Two connecting seats are respectively threadedly connected to the corresponding first screw rods;

[0017] Two connecting rods, each of which has a first end hinged to a corresponding connecting seat and a second end connected to the lifting seat.

[0018] A further improvement of the utility model is that a clamping groove is provided on the lifting seat, and a clamping plate matched with the clamping groove is provided on the upper end of the first filter plate.

[0019] A further improvement of the utility model is that the transmission assembly comprises:

[0020] A transmission shaft, horizontally arranged at the output end of the first motor, and provided with two first bevel gears with the same installation direction;

[0021] The two second bevel gears are respectively arranged at the ends of the two first screw rods and are respectively meshed with the two first bevel gears.

[0022] A further improvement of the utility model is that the cleaning mechanism comprises:

[0023] A support seat is arranged in the box below the first partition plate, and a sealing box is arranged in the middle of the support seat;

[0024] A first rotating shaft is rotatably disposed in the sealing box, and a cleaning brush is disposed on the upper end of the first rotating shaft after passing through the sealing box, and the upper surface of the cleaning brush abuts against the lower surface of the first filter plate;

[0025] The second motor is arranged on the box body, and the output end of the second motor is extended to the sealing box and is provided with a third bevel gear, and the third bevel gear is meshed with the fourth bevel gear on the first rotating shaft.

[0026] A further improvement of the utility model is that the swing assembly comprises:

[0027] A first gear, disposed on the spray pipe;

[0028] The first rack is arranged in the slideway on the box body and meshes with the first gear. The first rack can move back and forth along the slideway under the action of the driving component.

[0029] A further improvement of the utility model is that the driving member comprises:

[0030] A third motor is arranged on the box body, and a rotating rod is arranged at an output end thereof;

[0031] A guide groove is arranged at the end of the first rack, and a sliding rod arranged at the free end of the rotating rod is slidably connected to the guide groove.

[0032] A further improvement of the utility model is that a demister is arranged in the box above the spray pipe.

[0033] A further improvement of the utility model is that two second filter plates are arranged in parallel in the box above the demister, and activated carbon is filled between the two second filter plates.

[0034] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0035] The utility model provides a denitration device for waste incineration power generation, the flue gas enters into a box body through an air inlet pipe, then the solid suspended matter in the flue gas is filtered out by a first filter plate, then the ammonia water in the ammonia water tank enters into a spray pipe through a liquid outlet pipe, and then the ammonia water is sprayed into the flue gas by an atomizing nozzle to react with the nitrogen oxides in the flue gas, and the spray pipe can be swung under the action of a swinging component, so that the ammonia water can be evenly sprayed into the flue gas, thereby improving the stability of the denitration effect and the utilization efficiency of the ammonia water, and the solid suspended matter on the lower surface of the first filter plate can be cleaned by a cleaning mechanism to prevent clogging.

[0036] The above technical progress is mainly achieved by the following detailed technical improvements:

[0037] 1. Starting the third motor can drive the rotating rod to rotate. At this time, the sliding rod will slide back and forth in the guide groove at the end of the first rack, thereby driving the first rack to slide back and forth in the slideway, and the first gear meshing with the first rack will rotate alternately forward and reverse, thereby driving the spray pipe to swing, thereby increasing the spraying range of the spray pipe.

[0038] 2. The second motor can drive the fourth bevel gear to rotate through the third bevel gear, and then drive the cleaning brush to rotate through the first rotating shaft. Since the upper surface of the cleaning brush abuts against the lower surface of the first filter plate, the lower surface of the first filter plate can be cleaned when the cleaning brush rotates to prevent solid suspended matter from clogging the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. 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 creative work.

[0040] Figure 1 This is a schematic diagram of the structure of a denitrification device for waste incineration power generation according to the utility model;

[0041] Figure 2 It is a structural schematic diagram of the swing assembly of the utility model;

[0042] Figure 3 It is a structural schematic diagram of the transmission assembly of the utility model;

[0043] Figure 4 This is a schematic diagram of the structure of the cleaning mechanism of the utility model;

[0044] Description of reference numerals:

[0045] 10-box, 11-intake pipe, 12-screening plate, 13-drain pipe, 14-exhaust pipe, 20-first partition, 21-connecting channel, 22-lifting seat, 23-first filter plate, 30-lifting mechanism, 31-first guide rod, 32-fixed seat, 33-first screw, 34-first motor, 35-connecting seat, 36-connecting rod, 371-transmission shaft, 372-first bevel gear, 373-second bevel gear, 40-cleaning mechanism, 41-support Seat, 42-sealing box, 43-first rotating shaft, 44-cleaning brush, 45-second motor, 46-third bevel gear, 47-fourth bevel gear, 50-ammonia tank, 51-liquid outlet pipe, 52-spray pipe, 53-rotating joint, 60-clamping groove, 61-clamping plate, 70-swinging assembly, 71-first gear, 72-first rack, 73-third motor, 74-rotating rod, 75-guide groove, 76-sliding rod, 80-demister, 81-second filter plate. DETAILED DESCRIPTION

[0046] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, in the following description, specific details such as specific system structures and technologies are proposed for the purpose of explanation rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the utility model.

[0047] The utility model provides a denitrification device for waste incineration power generation, according to the attached manual Figure 1 To Attachment Figure 4 It can be seen that a denitrification device for waste incineration power generation mainly includes the following parts or components: a box body 10, a first partition 20, a lifting seat 22, a cleaning mechanism 40, and a spray pipe 52. The connection relationship of each part or component is as follows:

[0048] An air inlet pipe 11 is arranged at the bottom of the box body 10, a screening plate 12 is arranged horizontally in the box body 10 below the air inlet pipe 11, a drain pipe 13 is arranged on the box body 10 below the screening plate 12, and an exhaust pipe 14 is arranged on the top of the box body 10; a first partition plate 20 is arranged horizontally in the box body 10 above the air inlet pipe 11, and a connecting channel 21 is arranged in the middle of the first partition plate 20; a lifting seat 22 is arranged above the first partition plate 20 in a liftable manner under the action of a lifting mechanism 30, and a detachable first filter plate is arranged on the lifting seat 22 23. When the lifting seat 22 descends, the lower end of the first filter plate 23 extends into the connecting channel 21; the cleaning mechanism 40 is arranged below the first partition plate 20, and is used to clean the bottom of the filter plate; the ammonia water tank 50 is arranged on one side of the box body 10, and is provided with a liquid outlet pipe 51; the spray pipe 52 is horizontally arranged on the box body 10 above the lifting seat 22, and swings under the action of the swing assembly 70, and a plurality of atomizing nozzles are arranged on the spray pipe 52, and one end of the spray pipe 52 is connected to the liquid outlet pipe 51 through a rotary joint 53.

[0049] The flue gas enters the box body 10 through the air inlet pipe 11, and then the solid suspended matter in the flue gas is filtered out by the first filter plate 23. Then the ammonia water in the ammonia water tank 50 enters the spray pipe 52 through the liquid outlet pipe 51, and the ammonia water is sprayed into the flue gas by the atomizing nozzle to react with the nitrogen oxides in the flue gas. The spray pipe 52 can swing under the action of the swing component 70, so that the ammonia water can be evenly sprayed into the flue gas, thereby improving the stability of the denitrification effect and the utilization efficiency of the ammonia water. The solid suspended matter on the lower surface of the first filter plate 23 can be cleaned by the cleaning mechanism 40 to prevent clogging.

[0050] The water generated by the reaction of ammonia water and nitrogen oxides can flow to the bottom of the box 10 through the sieve plate 12, and the cleaned solid suspended matter will fall on the sieve plate 12, which is convenient for subsequent processing.

[0051] When the first filter plate 23 needs to be replaced after being used for a period of time, the lifting seat 22 can be driven up by the lifting mechanism 30 to disengage the first filter plate 23 from the connecting channel 21, and then the first filter plate 23 can be removed from the lifting seat 22 to facilitate replacement of the new first filter plate 23, which is convenient for replacement.

[0052] As an embodiment, according to the attached Figure 2 It can be seen that the lifting mechanism 30 includes: a first guide rod 31 is vertically arranged on the lifting seat 22, and is slidably connected to and penetrates the fixed seat 32 on the box body 10; two first screw rods 33 are parallelly arranged on the box body 10, and the first motor 34 can drive the two first screw rods 33 to rotate in the same direction through the transmission assembly; two connecting seats 35 are respectively threadedly connected to the corresponding first screw rods 33; the first end of each of the two connecting rods 36 is hinged to the corresponding connecting seat 35, and the second end is connected to the lifting seat 22.

[0053] When the first motor 34 drives the two first screws 33 to rotate through the transmission assembly, it can drive the corresponding connecting seat 35 to slide on the first screw 33, and then drive the lifting plate to rise and fall along the first guide rod 31 through the connecting rod 36. The lifting is relatively stable, the structure is simple, and it is easy to maintain.

[0054] In this embodiment, according to the specification Figure 4 It can be seen that a clamping groove 60 is provided on the lifting seat 22, and a clamping plate 61 adapted to the clamping groove 60 is provided on the upper end of the first filter plate 23. In addition, a handle can be provided on the first filter plate 23, and the first filter plate 23 can be assembled and disassembled by inserting and pulling out the clamping plate 61 into the clamping groove 60, which is convenient for assembly and disassembly.

[0055] In this embodiment, according to the specification Figure 3 It can be seen that the transmission assembly includes: a transmission shaft 371 horizontally arranged at the output end of the first motor 34, on which two first bevel gears 372 with the same installation direction are arranged; two second bevel gears 373 are respectively arranged at the ends of the two first screws 33, and are respectively meshed with the two first bevel gears 372.

[0056] When the first motor 34 drives the transmission shaft 371 to rotate, it can drive the two first bevel gears 372 to rotate in the same direction, and then drive the two second bevel gears 373 to rotate in the same direction, thereby driving the two first screws 33 to rotate at the same time, with a compact structure and stable transmission.

[0057] As an embodiment, according to the attached Figure 4It can be seen that the cleaning mechanism 40 includes: a support seat 41 is arranged in the box body 10 below the first partition plate 20, and a sealing box 42 is arranged in the middle of the support seat 41; a first rotating shaft 43 is rotatably arranged in the sealing box 42, and a cleaning brush 44 is arranged after its upper end passes through the sealing box 42, and the upper surface of the cleaning brush 44 abuts against the lower surface of the first filter plate 23; a second motor 45 is arranged on the box body 10, and a third bevel gear 46 is arranged after its output end extends to the sealing box 42, and the third bevel gear 46 is meshed with the fourth bevel gear 47 on the first rotating shaft 43.

[0058] The second motor 45 can drive the fourth bevel gear 47 to rotate through the third bevel gear 46, and then drive the cleaning brush 44 to rotate through the first rotating shaft 43. Since the upper surface of the cleaning brush 44 abuts against the lower surface of the first filter plate 23, when the cleaning brush 44 rotates, the lower surface of the first filter plate 23 can be cleaned to prevent solid suspended matter from clogging the filter holes.

[0059] As an embodiment, according to the attached Figure 2 It can be seen that the swing assembly 70 includes: a first gear 71 disposed on the spray pipe 52; a first rack 72 disposed in a slideway on the box 10 and meshing with the first gear 71, and the first rack 72 can reciprocate along the slideway under the action of the driving component. The driving component includes: a third motor 73 disposed on the box 10, and a rotating rod 74 is disposed at its output end; a guide groove 75 is disposed at the end of the first rack 72, and a sliding rod 76 disposed at the free end of the rotating rod 74 is slidably connected to the guide groove 75.

[0060] Starting the third motor 73 can drive the rotating rod 74 to rotate. At this time, the sliding rod 76 will slide back and forth in the guide groove 75 at the end of the first rack 72, thereby driving the first rack 72 to slide back and forth in the slideway, and the first gear 71 meshing with the first rack 72 will rotate alternately forward and reverse, thereby driving the spray pipe 52 to swing, thereby increasing the spraying range of the spray pipe 52.

[0061] In this embodiment, according to the specification Figure 1 It can be seen that a demister 80 is provided in the box 10 above the spray pipe 52. The mist in the flue gas can be treated, and two second filter plates 81 are provided in parallel in the box 10 above the demister 80, and activated carbon is filled between the two second filter plates 81. The activated carbon can further remove harmful gases in the flue gas and extend the service life of the equipment. After removing the mist, the service life of the activated carbon can be effectively extended.

[0062] It should be noted that, in this patent application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0063] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A denitrification device for waste incineration power generation, characterized in that: include: The box body has an air inlet pipe at the bottom, a screening plate is horizontally arranged in the box body below the air inlet pipe, a drainage pipe is arranged on the box body below the screening plate, and an exhaust pipe is arranged on the top of the box body; A first baffle, horizontally arranged in the box above the air inlet pipe, wherein a connecting channel is arranged in the middle of the first baffle; A lifting seat is arranged above the first partition plate in a liftable manner under the action of the lifting mechanism, and a detachable first filter plate is arranged on the lifting seat. When the lifting seat is lowered, the lower end of the first filter plate extends into the connecting channel; A cleaning mechanism, disposed below the first partition plate, for cleaning the bottom of the filter plate; An ammonia water tank is arranged on one side of the box body and is provided with a liquid outlet pipe; The spray pipe is horizontally arranged on the box body above the lifting seat and swings under the action of the swing assembly. One end of the spray pipe is connected to the liquid outlet pipe through a rotating joint.

2. A denitration device for waste incineration power generation according to claim 1, characterized in that: The lifting mechanism comprises: A first guide rod is vertically arranged on the lifting seat and is slidably connected with and penetrates the connecting seat on the box body; Two first screw rods are arranged in parallel on the box body, and the first motor can drive the two first screw rods to rotate in the same direction through the transmission assembly; Two connecting seats are respectively threadedly connected to the corresponding first screw rods; Two connecting rods, each of which has a first end hinged to a corresponding connecting seat and a second end connected to the lifting seat.

3. A denitration device for waste incineration power generation according to claim 2, characterized in that: The lifting seat is provided with a clamping groove, and the upper end of the first filter plate is provided with a clamping plate adapted to the clamping groove.

4. A denitration device for waste incineration power generation according to claim 2, characterized in that: The transmission assembly comprises: A transmission shaft, horizontally arranged at the output end of the first motor, and provided with two first bevel gears with the same installation direction; The two second bevel gears are respectively arranged at the ends of the two first screw rods and are respectively meshed with the two first bevel gears.

5. A denitration device for waste incineration power generation according to claim 1, characterized in that: The cleaning mechanism comprises: A support seat is arranged in the box below the first partition plate, and a sealing box is arranged in the middle of the support seat; A first rotating shaft is rotatably disposed in the sealing box, and a cleaning brush is disposed on the upper end of the first rotating shaft after passing through the sealing box, and the upper surface of the cleaning brush abuts against the lower surface of the first filter plate; The second motor is arranged on the box body, and the output end of the second motor is extended to the sealing box and is provided with a third bevel gear, and the third bevel gear is meshed with the fourth bevel gear on the first rotating shaft.

6. A denitration device for waste incineration power generation according to claim 1, characterized in that: The swing assembly comprises: A first gear, disposed on the spray pipe; The first rack is arranged in the slideway on the box body and meshes with the first gear. The first rack can move back and forth along the slideway under the action of the driving component.

7. A denitration device for waste incineration power generation according to claim 6, characterized in that: The driving member comprises: A third motor is arranged on the box body, and a rotating rod is arranged at an output end thereof; A guide groove is arranged at the end of the first rack, and a sliding rod arranged at the free end of the rotating rod is slidably connected to the guide groove.

8. A denitration device for waste incineration power generation according to any one of claims 1 to 7, characterized in that: A demister is arranged in the box above the spray pipe.

9. A denitration device for waste incineration power generation according to claim 8, characterized in that: Two second filter plates are arranged in parallel in the box above the demister, and activated carbon is filled between the two second filter plates.

Images