Thermoelectric combustion flue gas dust removal device
By employing inclined flue gas passage pipes and dust separation pipes in thermal power plants, combined with dust separation wheels and separation mesh frames, continuous filtration and convenient cleaning of dust in flue gas are achieved, solving the problem of gradually decreasing dust removal efficiency in existing technologies and improving the efficiency and convenience of dust removal devices.
Patent Information
- Application Number
- CN202423154926.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-19
AI Technical Summary
The dust removal efficiency of existing thermal power plant dust removal equipment gradually decreases after long-term use, making it impossible to achieve continuous and efficient dust removal.
The system employs inclined flue gas passage pipes and dust separation pipes, combined with dust separation wheels and separation mesh frames. The rotation of the wheels enables continuous filtration and accumulation of dust. The impeller blows off the dust, and the accumulated dust enters the dust treatment box through the dust separation pipes. It can also be wetted by water pipes to form lumps for further processing.
It achieves continuous dust filtration and convenient cleaning without affecting the dust removal effect, thus improving the long-term efficiency and convenience of the dust removal device.
Smart Images
Figure CN223570270U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to thermal power combustion technical field especially relates to a thermal power combustion flue gas dust removal device. BACKGROUND
[0002] At present, the most used fuel in conventional thermal power plant is coal, which is not only low in cost but also convenient to use, China's coal reserves are the first in the world, and there are sufficient conditions for developing thermal power, at present, the thermal power plant generates more than 80.00% of the total power generation, most of which is distributed in the north and northeast of China, coal needs to be placed in the coal box during transportation engineering, and the transportation of coal is mainly by railway, the production process of thermal power plant is: fuel is burned in the boiler to heat water to steam, the chemical energy of fuel is converted into heat energy, the steam pressure drives the steam turbine to rotate, the heat energy is converted into mechanical energy, then the steam turbine drives the generator to rotate, and the mechanical energy is converted into electrical energy.
[0003] A large amount of dust-carrying flue gas will be generated during the combustion of coal, if it is directly discharged into the air, it will cause air pollution, the conventional dust removal equipment filters the flue gas through the filter screen, so that the dust is intercepted at one end of the filter screen, after a long time of use, if the filter screen is not cleaned regularly, the dust removal effect will gradually decrease. UTILIZABLE CONTENT
[0004] (I) technical problems to be solved
[0005] In view of the above-mentioned defects and deficiencies of the prior art, the utility model provides a thermal power combustion flue gas dust removal device, which solves the technical problem that the dust removal effect of the dust removal device will gradually decrease after a long time of use.
[0006] (II) technical scheme
[0007] In order to achieve the above-mentioned purpose, the utility model adopts the main technical scheme including:
[0008] The utility model discloses a kind of thermoelectric combustion flue gas dust removal devices, including with thermoelectric combustion flue gas discharge end and being inclined arrangement's flue gas passing pipe, dust separation pipe and dust separation wheel being arranged in the flue gas passing pipe side in parallel, the air inlet end of the flue gas passing pipe is lower than the air outlet end, the middle part of the flue gas passing pipe is equipped with passing gap, the middle part of the dust separation pipe is equipped with separation gap, the dust separation wheel includes wheel body being rotationally arranged between the flue gas passing pipe and the dust separation pipe and multiple separation net racks being evenly spaced on the wheel body, the rotation axis of the wheel body is parallel to the axis of the flue gas passing pipe and the dust separation pipe, the separation net rack is coaxially embedded in the passing gap and filters through flue gas with the wheel body rotation, the separation net rack is coaxially embedded in the separation gap and separates dust into the dust separation pipe with the wheel body rotation.
[0009] The utility model discloses a kind of thermoelectric combustion flue gas dust removal devices, when carrying out dust removal to flue gas in thermoelectric combustion process by the device, flue gas passing pipe is directly inclined and connected in the discharge end of flue gas, flue gas is directly introduced into flue gas passing pipe, with the circulation of flue gas, dust in flue gas will be filtered by separation net rack located at passing gap, with a period of time use, one end of separation net rack will gather a large amount of dust, wheel body can be rotated at this time, so that the dust gathered separation net rack rotates to separation gap with wheel body, dust on dust net rack can be made to fall into dust separation pipe at this time, and remaining separation net rack will be moved to passing gap with rotation and filter dust, to realize continuous dust removal filtering, more convenient while not affecting dust removal effect.
[0010] Optionally, the dust separation wheel further includes a wheel shell fitted on the outer periphery of the wheel body, the wheel shell includes two half shells that are detachably assembled together in a semicircular shape, and each of the two half shells is provided with a shell groove at one end thereof for partially receiving the wheel body.
[0011] By setting the wheel shell as two half shells, the two half shells are assembled together during installation to completely cover the wheel body and the separation net racks, thereby reducing flue gas overflow generated in the thermoelectric combustion process, and the wheel body and the separation net racks can be protected, and maintenance is also more convenient.
[0012] Optionally, a plurality of mounting insertion holes are evenly and spacedly provided on the wheel body for receiving the separation net racks, and a limiting ring is coaxially arranged on the wheel body at an opening of the mounting insertion hole close to the air inlet end of the flue gas passing pipe to limit the falling of the separation net racks.
[0013] By opening the mounting socket on the wheel body and setting the limiting ring piece at the opening end of the mounting socket, the separated net rack only needs to be inserted at the other opening end of the mounting socket during installation, and one end of the separated net rack abuts against the limiting ring piece, which makes the installation and disassembly of the separated net rack more convenient.
[0014] Optionally, the smoke passing pipe is coaxially provided with a supporting ring piece at the upper end of the passing gap, and the supporting ring piece abuts against one end of the separated net rack away from the limiting ring piece.
[0015] When the wheel body rotates to align the separated net rack with the smoke passing pipe, the passing smoke carrying a large amount of dust will exert a greater impact force on the separated net rack, which is easy to cause the dust removal effect to be reduced. In this scheme, the supporting ring piece is coaxially arranged on the upper side of the passing gap of the smoke passing pipe, so that when the wheel body rotates to align the separated net rack with the smoke passing pipe, the supporting ring piece abuts against the other end of the separated net rack, thereby supporting the separated net rack and ensuring that the separated net rack will not easily disengage during the dust removal process, which is more stable.
[0016] Optionally, a disassembly hole communicating with the shell groove is formed in one end of the half shell away from the gas inlet end of the smoke passing pipe, the separated net rack is disassembled when the mounting socket aligns with the disassembly hole, and a door is rotationally arranged at the disassembly hole of the half shell.
[0017] By opening the disassembly hole in one end surface of the half shell, the mounting socket can be aligned with the disassembly hole when the wheel body rotates, thereby facilitating maintenance and replacement of the separated net rack without disassembling the wheel shell, which is more convenient. Meanwhile, the disassembly hole is plugged by the door, which facilitates maintenance.
[0018] Optionally, the dust separation pipe is coaxially arranged with a wind wheel on the upper side of the separation gap, which blows air to the separated net rack.
[0019] By arranging the wind wheel on the upper side of the separation gap of the dust separation pipe, when the wheel body rotates to the position where the separated net rack is located in the separation gap, the wind wheel is coaxial with the separated net rack. At this time, the wind wheel can work and blow air to the separated net rack, thereby blowing off the dust accumulated on one end of the separated net rack. This scheme makes it more convenient for the dust to separate from the separated net rack.
[0020] Optionally, a dust treatment box for storing dust is arranged at the lower end of the dust separation pipe.
[0021] By arranging the dust treatment box at the lower end of the dust separation pipe, the dust separated from the separated net rack will fall along the dust separation pipe and be stored in the dust treatment box, which is more convenient.
[0022] Optionally, the dust treatment box is internally formed with a dust storage cavity, a water pipe is arranged on the top of the dust treatment box and communicated with the dust storage cavity, a water absorbing sponge is arranged on the top wall of the dust storage cavity, a limiting net is arranged below the water absorbing sponge, and a sealing plate is rotatably arranged on the bottom of the dust treatment box and used for sealing or opening the dust storage cavity.
[0023] By connecting the water pipe on the top of the dust treatment box, water flows into the dust treatment box, and the water droplets falling on the water absorbing sponge can wet the dust in the dust treatment box, so that the dust forms a block, and when the dust block is large enough, the sealing plate can be rotated to open, so that the dust block falls down, and then the sealing plate is closed to continue working.
[0024] Optionally, the lower end of the flue gas passing pipe is obliquely provided with an air inlet pipe, the air inlet pipe is communicated with the flue gas passing pipe and opposite to the oblique direction of the flue gas passing pipe, and the lower end of the air inlet pipe and the lower end of the connecting end of the flue gas passing pipe are vertically and continuously provided with a dust discharging pipe, and the lower end of the dust discharging pipe is fixed with a sealing cap by bolts.
[0025] When the flue gas enters the air inlet pipe and then passes through the flue gas passing pipe, a large amount of dust will gather on the inner walls of the air inlet pipe and the flue gas passing pipe under the action of gravity due to the large amount of dust contained in the flue gas, and when the dust collector is used for a long time, the gathered dust can be knocked down to the dust discharging pipe, and then the dust can be discharged by opening the sealing cap.
[0026] (Three) beneficial effects
[0027] The dust collector of the utility model has the beneficial effects that when the flue gas in the thermal power combustion process is treated by the dust collector, the flue gas passing pipe is directly and obliquely connected to the flue gas discharge end, the flue gas directly enters the flue gas passing pipe, and the dust in the flue gas is filtered by the separation net rack in the passing gap, after a period of use, a large amount of dust is gathered on one end of the separation net rack, at this time, the wheel body is rotated to move the separation net rack with gathered dust to the separation gap, at this time, the dust on the dust net rack falls into the dust separation pipe, and the remaining separation net racks are moved to the passing gap by rotation and filter the dust, so that continuous dust removal and filtration are realized, and the dust removal effect is not affected and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS
[0028] Figure 1A three-dimensional view of an embodiment of the present application;
[0029] Figure 2 An explosion view of an embodiment of the present application;
[0030] Figure 3 A sectional view of an embodiment of the present application.
[0031] Explanation of reference numerals
[0032] 1, flue gas passage pipe; 11, passage gap; 12, support ring; 2, dust separation pipe; 21, separation gap; 22, wind wheel; 3, dust separation wheel; 31, wheel body; 311, mounting jack; 312, limiting ring; 32, separation net rack; 33, wheel shell; 331, half shell; 332, shell groove; 333, clamping groove; 334, dismounting hole; 335, sealing door; 4, dust treatment box; 41, dust storage cavity; 42, water pipe; 43, drinking water sponge; 44, limiting net; 45, sealing plate; 5, air inlet pipe; 6, dust discharge pipe; 61, sealing cap. DETAILED DESCRIPTION
[0033] In order to better explain the present application, so as to facilitate understanding, the following will be combined with the drawings, through specific embodiments, the present application is described in detail.
[0034] The dust removal device for thermal power combustion flue gas provided by the embodiment of the present application, when the flue gas in the thermal power combustion process is removed through the device, the flue gas passage pipe is directly connected to the discharge end of the flue gas, and the flue gas is directly introduced into the flue gas passage pipe. With the circulation of flue gas, the dust in the flue gas will be filtered by the separation net rack located at the passage gap. With the use of a period of time, one end of the separation net rack will accumulate a large amount of dust. At this time, the wheel body can be rotated, so that the separation net rack with dust is rotated to the separation gap with the wheel body. At this time, the dust on the dust net rack can be allowed to fall into the dust separation pipe, and the remaining separation net rack will be moved to the passage gap by rotation and filter the dust, thereby realizing continuous dust removal and filtration. The dust removal effect is not affected, and it is more convenient.
[0035] In order to better understand the above technical solutions, the following will be described in more detail with reference to the drawings. Although the exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided so that the present application can be more clearly and thoroughly understood, and the scope of the present application can be completely conveyed to those skilled in the art.
[0036] Reference Figure 1 and Figure 2The utility model provides a thermoelectric combustion flue gas dust removal device, including with the thermoelectric combustion flue gas emission end communication and the inclined arrangement of flue gas passing pipe 1, the dust separation pipe 2 of parallel arrangement in flue gas passing pipe 1 one side and dust separation wheel 3.
[0037] The air inlet end of the flue gas passing pipe 1 is lower than the air outlet end, a passing gap 11 is formed in the middle of the flue gas passing pipe 1 along the vertical direction of its length, a separation gap 21 is formed in the middle of the dust separation pipe 2, the dust separation gap 21 is aligned with the passing gap 11, the dust separation wheel 3 includes a wheel body 31 connected between the flue gas passing pipe 1 and the dust separation pipe 2 by a motor and a rotating shaft, and a plurality of separation grid frames 32 evenly and uniformly distributed on the wheel body 31, the rotating shaft of the wheel body 31 is parallel to the axis of the flue gas passing pipe 1 and the dust separation pipe 2, the separation grid frames 32 are coaxially embedded in the passing gap 11 and filter the flue gas passing through, and the separation grid frames 32 are coaxially embedded in the separation gap 21 and separate the dust into the dust separation pipe 2.
[0038] The dust separation pipe 2 is coaxially fixed with a wind wheel 22 on the upper side of the separation gap 21 by bolts, the wind wheel 22 blows air to the separation grid frames 32, when the wheel body 31 rotates to the position where the separation grid frames 32 are aligned with the separation gap 21, the wind wheel 22 can work and blow air to the separation grid frames 32, so that the dust accumulated at one end of the separation grid frames 32 is blown off.
[0039] The dust separation wheel 3 further includes a wheel shell 33 sleeved on the outer periphery of the wheel body 31, the wheel shell 33 includes two half shells 331 which are semi-circular and can be detachably assembled together, one end of each half shell 331 is provided with a shell groove 332 for partially inserting the wheel body 31 and a clamping groove 333 for clamping the dust separation pipe 2 and the flue gas passing pipe 1, the wheel body 31 is provided with mounting insertion holes 311 evenly and uniformly distributed on the circumference for inserting the separation grid frames 32, and the wheel body 31 is integrally and coaxially provided with a limiting ring 312 for limiting the falling of the separation grid frames 32 at the opening of the mounting insertion holes 311 close to the air inlet end of the flue gas passing pipe 1. During installation, the two half shells 331 are assembled together and completely cover the wheel body 31 and the separation grid frames 32, so as to reduce the overflow of flue gas generated during the thermoelectric combustion process and protect the wheel body 31 and the separation grid frames 32, when the separation grid frames 32 are installed, they only need to be inserted from one end of the mounting insertion holes 311, so that one end of the separation grid frames 32 abuts against the limiting ring 312, making the installation and disassembly of the separation grid frames 32 more convenient.
[0040] The flue gas passing pipe 1 is integrally and coaxially provided with a supporting ring 12 at the upper end of the passing gap 11, the supporting ring 12 abuts against the other end of the separation grid frames 32 away from the limiting ring 312. When the wheel body 31 rotates to the position where the separation grid frames 32 are aligned with the flue gas passing pipe 1, the supporting ring 12 abuts against the other end of the separation grid frames 32, so as to support the separation grid frames 32 and ensure that the separation grid frames 32 will not easily fall off during the dust removal process, making the process more stable.
[0041] The half-shell 331, facing away from the air inlet end of the flue gas passage pipe 1, has a disassembly hole 334 that connects to the shell groove 332. When the mounting hole 311 is aligned with the disassembly hole 334, the separation mesh frame 32 can be disassembled through the disassembly hole 334. The half-shell 331 has a sealing door 335 at the disassembly hole 334 that can be rotated to close or open the disassembly hole 334. This facilitates the inspection and replacement of the separation mesh frame 32 without disassembling the wheel housing 33.
[0042] See Figure 2 and Figure 3 The lower end of the dust separation pipe 2 is connected to a dust collection box 4, which contains dust. The dust collection box 4 forms a dust collection cavity 41. A water pipe 42 is installed at the top of the dust collection box 4, connecting to the dust collection cavity 41. A water-absorbing sponge 43 is adhered to the top wall of the dust collection cavity 41. A limit net 44 is bolted to the lower side of the water-absorbing sponge 43. A sealing plate 45 is rotatably installed at the bottom of the dust collection box 4 to close or open the dust collection cavity 41. Water flows into the dust collection box 4 through the water pipe 42. The water entering the dust collection box 4 wets the water-absorbing sponge 43. The water droplets dripping from the sponge 43 wet the dust inside the dust collection box 4, forming clumps. When the dust clumps are large enough, the sealing plate 45 can be rotated open to allow the dust clumps to fall. The sealing plate 45 is then closed to continue operation.
[0043] An inlet pipe 5 is inclinedly installed at the lower end of the flue gas passage pipe 1. The inlet pipe 5 is connected to the flue gas passage pipe 1 and is inclined in the opposite direction to the flue gas passage pipe 1. A ash discharge pipe 6 is vertically connected to the lower end of the connection between the inlet pipe 5 and the flue gas passage pipe 1. The lower end of the ash discharge pipe 6 is fixed with a cap 61 by bolts. After the dust removal device has been used for a long time, the accumulated dust can be made to fall to the ash discharge pipe 6 by gently tapping the inlet pipe 5 and the flue gas passage pipe 1, and then the dust can be discharged by opening the cap 61.
[0044] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0045] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can pass through intermediate medium indirectly connect;Can be two element inside communication or two element mutual action relation.For ordinary skilled person in the art, can understand the specific meaning of above-mentioned terms in the utility model according to specific circumstances.
[0046] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature, can be first and second feature direct contact, or first and second feature indirectly contact by intermediate medium.Moreover, first feature is "on", "above" and "upper surface" of second feature, can be first feature is directly above or obliquely above second feature, or just indicate that the horizontal height of first feature is higher than second feature.First feature is "under", "below" and "lower surface" of second feature, can be first feature is directly below or obliquely below second feature, or just indicate that the horizontal height of first feature is lower than second feature.
[0047] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.
[0048] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled person in the art can change, modify, replace and change the above-mentioned embodiments within the scope of the utility model.
Claims
1. A thermoelectric combustion flue gas dedusting device, characterized in that: The system includes a flue gas passage pipe (1) connected to the exhaust end of the thermal power combustion and arranged at an angle, a dust separation pipe (2) arranged parallel to one side of the flue gas passage pipe (1), and a dust separation wheel (3). The inlet end of the flue gas passage pipe (1) is lower than the outlet end. A passage gap (11) is opened in the middle of the flue gas passage pipe (1), and a separation gap (21) is opened in the middle of the dust separation pipe (2). The dust separation wheel (3) includes components rotatably disposed between the flue gas passage pipe (1) and the dust separation pipe (2). The wheel (31) and a plurality of separation mesh frames (32) evenly spaced around the wheel (31) have a rotation axis parallel to the axis of the flue gas passage pipe (1) and the dust separation pipe (2). The separation mesh frames (32) are coaxially embedded in the passage gap (11) and filter the flue gas as the wheel (31) rotates. The separation mesh frames (32) are coaxially embedded in the separation gap (21) and separate dust into the dust separation pipe (2) as the wheel (31) rotates.
2. The thermoelectric combustion flue gas dedusting device of claim 1, wherein: The dust separating wheel (3) also includes a wheel shell (33) fitted around the outer periphery of the wheel body (31). The wheel shell (33) includes two semi-circular halves that can be detachably assembled together. The two halves of the halves (331) are respectively provided with shell grooves (332) for the wheel body (31) to be inserted into.
3. The thermoelectric combustion flue gas dedusting device of claim 2, wherein: The wheel body (31) is provided with mounting holes (311) evenly spaced around the circumference for inserting the separation mesh frame (32). The wheel body (31) is coaxially provided with a limiting ring (312) to prevent the separation mesh frame (32) from falling off at the opening of the mounting hole (311) near the air inlet end of the flue gas passage pipe (1).
4. The thermoelectric combustion flue gas dedusting device of claim 3, wherein: The flue gas passage pipe (1) is coaxially provided with a support ring (12) at the upper end of the passage gap (11), and the support ring (12) abuts against the end of the separation frame (32) away from the limiting ring (312).
5. The thermoelectric combustion flue gas dedusting device of claim 3, wherein: The half-shell (331) has a disassembly hole (334) connected to the shell groove (332) at one end away from the air inlet end of the flue gas passage pipe (1). The separation mesh frame (32) is disassembled when the mounting hole (311) is aligned with the disassembly hole (334). The half-shell (331) is rotatably provided with a sealing door (335) at the disassembly hole (334).
6. The thermoelectric combustion flue gas dedusting device of claim 1, wherein: The dust separation pipe (2) has a fan wheel (22) arranged coaxially on the upper side of the separation gap (21) to blow air towards the separation frame (32).
7. The thermoelectric combustion flue gas dedusting device of claim 1, wherein: The lower end of the dust separation pipe (2) is provided with a dust treatment box (4) for collecting dust.
8. The thermoelectric combustion flue gas dedusting device of claim 7, wherein: The dust treatment box (4) is internally formed with a dust storage cavity (41), the top of the dust treatment box (4) is provided with a water pipe (42) communicated to the dust storage cavity (41), the dust treatment box (4) is provided with a water drinking sponge (43) on the top wall of the dust storage cavity (41), the dust treatment box (4) is provided with a limiting net (44) on the lower side of the water drinking sponge (43), and the bottom of the dust treatment box (4) is rotatably provided with a sealing plate (45) for closing or opening the dust storage cavity (41).
9. The thermoelectric combustion flue gas dedusting device of claim 1, wherein: The lower end of the flue gas passing pipe (1) is obliquely provided with an air inlet pipe (5), the air inlet pipe (5) is communicated with the flue gas passing pipe (1) and opposite to the oblique direction of the flue gas passing pipe (1), the lower side end of the connecting end of the air inlet pipe (5) and the flue gas passing pipe (1) is vertically and communicatively provided with an ash discharge pipe (6), and the lower end of the ash discharge pipe (6) is fixed with a sealing cap (61) through bolts.