Dust removal and exhaust device for boiler of thermal power plant
By designing a dust removal device for high-speed rotating brushes and spray pipe networks in boilers of thermal power plants, the problems of poor dust interception and difficulty in cleaning in the prior art are solved, and efficient dust removal and long-term stable operation are achieved.
Patent Information
- Application Number
- CN202420972031.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The dust removal carrier surface of the existing thermal power plant boilers is smooth, the dust interception effect is poor, and it needs to be manually cleaned or replaced after a long period of use, so it cannot effectively remove the attached dust.
A dust removal and exhaust device for boilers of thermal power plant is designed, using dust removal chamber, intake passage, exhaust passage and dust removal mechanism, including a high-speed rotating brush structure and spray pipe net, where a brush is set and passed through The motor drives and rotates, adjacent brushes are distributed across, and sprays water to remove dust.
The dust interception effect and dust removal efficiency are improved, and the working interruption frequency is reduced. The brush structure effectively removes dust and takes away during high-speed rotation, maintains long-term efficient interception, and improves the dust removal and exhaust efficiency.
Smart Images
Figure CN222342388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dust removal and environmental protection equipment, in particular to a dust removal and exhaust device for a boiler in a thermal power plant. Background Art
[0002] A thermal power plant is a plant that uses combustibles (such as coal) as fuel to produce electricity. A thermal power plant boiler is an energy converter that uses the heat energy released by fuel combustion or other heat energy to heat working water or other fluids to certain parameters.
[0003] The pollution of thermal power plants to the environment is mainly fly ash, dust and harmful gases discharged with the smoke. Generally, dust collectors and higher chimneys are used to reduce pollution. In the exhaust work of the boiler of a thermal power plant, the dust contained in the exhaust gas discharged from the boiler is generally intercepted by a carrier that intercepts dust, and the dust on the carrier is sprayed off and taken away by the spray pipe network to achieve the dust removal effect. However, the surface of the carrier that intercepts dust in the prior art is generally smooth so that the dust attached to the carrier can be removed by spraying. However, this carrier has a poor dust interception effect, and after long-term use, the dust intercepted by it cannot be effectively removed by spraying, and manual cleaning or replacement of the carrier is required. In order to improve the above situation, it is necessary to design a dust removal and exhaust device for the boiler of a thermal power plant. Utility Model Content
[0004] The utility model aims to solve the technical problems in the prior art and provides a dust removal and exhaust device for a boiler in a thermal power plant.
[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:
[0006] A dust removal and exhaust device for a boiler in a thermal power plant, comprising:
[0007] A dust removal chamber, which is a hollow structure;
[0008] An air inlet passage, which is arranged at one side of the dust removal chamber and communicated with the dust removal chamber;
[0009] An exhaust passage, which is arranged on the dust removal chamber at the opposite side of the air inlet passage and communicated with the dust removal chamber;
[0010] A dust removal mechanism, which is arranged inside the dust removal chamber and is used to remove dust from the exhaust gas entering the dust removal chamber from the air inlet passage so that the exhaust gas after dust removal is discharged from the exhaust passage;
[0011] and a dust discharge channel, which is arranged at the bottom of the dust removal chamber and communicated with the dust removal chamber.
[0012] Furthermore, an exhaust fan is arranged on the exhaust passage.
[0013] Furthermore, the dust removal mechanism includes a vertical rotating shaft, which is vertically arranged inside the dust removal chamber and driven to rotate by a motor arranged outside the dust removal chamber, the vertical rotating shafts are multiple groups with the same structure, the multiple groups of vertical rotating shafts are arranged parallel to each other and are evenly distributed at intervals, a rotating drum is coaxially sleeved on the vertical rotating shaft, and a brush is circumferentially arranged on the outer side of the rotating drum;
[0014] Spray pipe networks are arranged on both sides of the dust removal chamber to spray dust removal water onto the brush.
[0015] Furthermore, the multiple groups of vertical rotating shafts are evenly spaced apart so that the brushes on adjacent rotating drums are cross-distributed.
[0016] Furthermore, baffles are provided on both sides of the dust removal chamber close to the air inlet channel and the air outlet channel, and the baffles are provided with a plurality of ventilation holes evenly distributed;
[0017] The baffles arranged on both sides of the dust removal chamber are distributed on both sides of the dust removal mechanism.
[0018] The utility model has the following beneficial effects:
[0019] The utility model discloses a dust removal and exhaust device for a boiler in a thermal power plant. During the exhaust work of the boiler in the thermal power plant, dust in the exhaust gas is intercepted by a brush structure in the dust removal mechanism, and adjacent brush structures are crossed with each other and rotate at high speed, so as to improve the dust interception effect. At the same time, in conjunction with a spray pipe network, the dust can be effectively removed during high-speed rotation and contact during rotation, and the dust intercepted can be taken away with the spray water, so that the dust removal mechanism can maintain long-term and efficient dust interception work, reduce the frequency of work interruption, and improve the dust removal and exhaust efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0021] Figure 1 It is a structural schematic diagram of a dust removal and exhaust device for a boiler in a thermal power plant according to the utility model;
[0022] Figure 2 The utility model is a front view of a dust removal and exhaust device for a boiler in a thermal power plant.
[0023] The reference numerals in the figures indicate:
[0024] 1. Dust removal chamber; 2. Air inlet channel; 3. Exhaust channel; 4. Dust discharge channel; 5. Exhaust fan; 6. Vertical rotating shaft; 7. Rotating drum; 8. Brush; 9. Spray pipe network; 10. Baffle; 11. Ventilation hole. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] See also Figure 1-2 , a dust removal and exhaust device for a boiler in a thermal power plant, comprising:
[0027] The dust removal chamber 1 is a hollow structure;
[0028] An air inlet channel 2, which is arranged at one side of the dust removal chamber 1 and communicates with the dust removal chamber 1;
[0029] An exhaust passage 3 is provided on the dust removal chamber 1 at the opposite side of the air inlet passage 2 and communicates with the dust removal chamber 1;
[0030] A dust removal mechanism is arranged inside the dust removal chamber 1 to remove dust from the exhaust gas entering the dust removal chamber 1 from the air inlet passage 2 so that the dust-removed exhaust gas is discharged from the exhaust passage 3;
[0031] And a dust discharge channel 4, which is arranged at the bottom of the dust removal chamber 1 and communicated with the dust removal chamber 1.
[0032] Specifically, during the emission process of the exhaust gas generated by the boiler of a thermal power plant, the exhaust gas is introduced into the dust removal chamber 1 through the air intake channel 2, and the dust removal treatment is carried out by the dust removal mechanism in the dust removal chamber 1, and then the dust-removed exhaust gas is discharged from the exhaust channel 3 through the exhaust channel 3, wherein the dust in the dust removal process is discharged through the dust discharge channel 4, thereby achieving the dust removal effect in the exhaust process of the boiler of the thermal power plant.
[0033] Furthermore, an exhaust fan 5 is provided on the exhaust passage 3 to improve the air discharge efficiency of the exhaust passage 3 of the device, improve the passing efficiency of the exhaust gas in the dust removal chamber 1, and thus improve the dust removal efficiency of the dust removal mechanism.
[0034] Furthermore, the dust removal mechanism includes a vertical rotating shaft 6, which is vertically arranged inside the dust removal chamber 1 and driven to rotate by a motor arranged outside the dust removal chamber 1. The vertical rotating shafts 6 are multiple groups of the same structure, and the multiple groups of vertical rotating shafts 6 are arranged parallel to each other and evenly spaced. A rotating drum 7 is coaxially sleeved on the vertical rotating shaft 6, and a brush 8 is circumferentially arranged on the outer side of the rotating drum 7;
[0035] A spray pipe network 9 is arranged on both sides of the dust removal chamber 1 to spray dust removal water onto the brush 8 .
[0036] Furthermore, the multiple groups of vertical rotating shafts 6 are evenly spaced apart so that the brushes 8 on adjacent rotating drums 7 are cross-distributed.
[0037] Specifically, during the dust removal process, after the dust-carrying exhaust gas enters the dust removal chamber 1, the exhaust gas passes through the high-speed rotating brush 8 of the dust removal mechanism. The brush 8 is driven to rotate by the rotating drum 7 on the vertical rotating shaft 6. The brush 8 is also attached with a spray pipe network 9 to spray dust removal water onto the brush 8, so that the dust in the exhaust gas can be adsorbed and intercepted. The dust-removed exhaust gas passes through the dust removal mechanism normally, and the adjacent brushes 8 rotating at high speed contact, collide, and rub against each other, and are sprayed with dust removal water by the spray pipe network 9. The dust can be more effectively and efficiently removed by spraying the dust removal water and discharged from the dust emission channel 4.
[0038] Furthermore, baffles 10 are arranged on both sides of the dust removal chamber 1 near the air inlet channel 2 and the exhaust channel 3, and a plurality of evenly distributed ventilation holes 11 are opened on the baffle 10, so that the exhaust gas carrying dust can pass through the ventilation holes 11 on the baffle 10, and the baffle 10 mainly blocks the water splashed by the high-speed rotation of the brush 8.
[0039] Baffles 10 are arranged on both sides of the dust removal chamber 1 and distributed on both sides of the dust removal mechanism to prevent excessive water from entering the air inlet channel 2 and the air exhaust channel 3.
[0040] In summary, during the exhaust work of the boiler in a thermal power plant, the device intercepts the dust in the exhaust gas through the brush structure in the dust removal mechanism, and the adjacent brush structures cross each other and rotate at high speed to improve the dust interception effect. At the same time, in conjunction with the spray pipe network, it can rotate at high speed and the contact during rotation can effectively remove the intercepted dust and carry it away with the spray water, so that the dust removal mechanism can maintain long-term and efficient dust interception work, reduce the frequency of work interruptions, and improve the dust removal and exhaust efficiency.
[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.
Claims
1. A dust removal and exhaust device for a boiler in a thermal power plant, characterized in that: include: A dust removal chamber (1) which is a hollow structure; An air inlet passage (2), which is arranged on one side of the dust removal chamber (1) and is in communication with the dust removal chamber (1); An exhaust passage (3) arranged on the dust removal chamber (1) at the opposite side of the air inlet passage (2) and communicating with the dust removal chamber (1); a dust removal mechanism, which is arranged inside the dust removal chamber (1) and is used to remove dust from the waste gas entering the dust removal chamber (1) from the air inlet passage (2) so that the waste gas after dust removal is discharged from the exhaust passage (3); and a dust discharge channel (4), which is arranged at the bottom of the dust removal chamber (1) and communicates with the dust removal chamber (1); The dust removal mechanism comprises a vertical rotating shaft (6), which is vertically arranged inside the dust removal chamber (1) and driven to rotate by a motor arranged outside the dust removal chamber (1); the vertical rotating shafts (6) are multiple groups of the same structure, and the multiple groups of vertical rotating shafts (6) are arranged parallel to each other and evenly spaced apart; a rotating drum (7) is coaxially sleeved on the vertical rotating shaft (6), and a brush (8) is circumferentially arranged on the outer side of the rotating drum (7); Spray pipe networks (9) are arranged on both sides of the dust removal chamber (1) for spraying dust removal water onto the brush (8).
2. The dust removal and exhaust device for a thermal power plant boiler according to claim 1, characterized in that: An exhaust fan (5) is arranged on the exhaust passage (3).
3. The dust removal and exhaust device for a thermal power plant boiler according to claim 1, characterized in that: The multiple groups of vertical rotating shafts (6) are evenly spaced apart so that the brushes (8) on adjacent rotating drums (7) are cross-distributed.
4. The dust removal and exhaust device for a thermal power plant boiler according to claim 1, characterized in that: Baffles (10) are arranged on both sides of the dust removal chamber (1) close to the air inlet channel (2) and the air outlet channel (3), and the baffles (10) are provided with a plurality of ventilation holes (11) evenly distributed; The baffles (10) on both sides of the dust removal chamber (1) are distributed on both sides of the dust removal mechanism.