A comprehensive wet dust collector
Through the multi-stage and multiple dust removal and sewage recycling of the integrated wet dust collector, the problems of poor flow diversion and safety hazards of existing wet dust collectors have been solved, and efficient dust removal and environmental protection are achieved.
Patent Information
- Application Number
- CN202110158219.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-02-05
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2041-02-05
AI Technical Summary
The existing wet dust collectors cannot effectively divert the flow when handling flue gas, humidified water cannot be recycled, and the dust removal effect of a single equipment is poor, and there are safety hazards such as dust explosion.
A comprehensive wet dust collector was designed, which uses the dust removal sewage for recycling through multiple stages and multiple dust removal, including the shell main body, the connecting cavity, the sewage discharge channel, the sedimentation tank, the reservoir, the ventilation duct, the spray pipe, The dust collector and discharge electrode are combined with a high-voltage DC electric field and an annular spray head for multiple dust removal, and the water is filtered and circulated through a water purification device.
It improves the dust removal effect, reduces safety hazards, and realizes the recycling of sewage, achieving the purpose of energy conservation and environmental protection.
Smart Images
Figure CN112774372B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of dust removal equipment, and in particular to an improvement of a comprehensive wet dust collector. Background Art
[0002] Wet dust collectors are commonly known as "demisters". They are devices that make dust-laden gas come into close contact with liquid (usually water), and use the inertial collision of water droplets and particles or the full mixing of water and dust and other effects to capture particles or make particles larger or remain in a fixed container to achieve the effect of water and dust separation. There are many types of wet dust collectors, and it is difficult to have a definite classification. Generally speaking, they can be divided into low-resistance and high-resistance wet dust collectors. The former has a resistance of 25-150 mm water column, which includes simple spray towers and wet cyclone dust collectors. The general water consumption is 0.4-0.8 kg / m3, and the dust removal efficiency exceeds 90-95% when the dust is larger than 10 microns. This type of dust collector is commonly used in combustion furnaces, fertilizer plants, lime kilns, and iron foundries. According to its structure, there are the following types: gravity spray wet dust collector, cyclone wet dust collector, self-excited wet dust collector, filler wet dust collector, foam wet dust collector, etc.
[0003] At present, large factories use various purification and dust removal equipment to deal with exhaust dust. However, the existing wet dust collectors for industrial environmental protection cannot guide the flue gas entering the dust collector, and the water used for humidification cannot be recycled. At the same time, the dust removal effect of a single device is not good, and various dust explosions and other safety hazards often occur. Summary of the invention
[0004] The purpose of the present invention is to provide a comprehensive wet dust collector to address the defects and shortcomings of the prior art. It improves the dust removal effect and reduces safety hazards through multi-stage and multiple dust removal. At the same time, it recycles the wastewater after dust removal, which is energy-saving and environmentally friendly.
[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it consists of a shell body 1, a connecting cavity 2, a sewage discharge channel 3, a sedimentation tank 4, a water reservoir 5, a ventilation duct 6, an air inlet 7, a partition 8, a guide plate 9, a spray pipe 10, a dust collecting electrode 11, a discharge electrode 12, an air outlet 13, a water baffle 14, a protective shell 15, a high-voltage power supply device 16, an electrode insulator 17, a water purification device 18, a water pump 19, and a water pipe 20. The bottom of the shell body 1 is provided with a connecting cavity 2, the bottom of the connecting cavity 2 is provided with a sewage discharge channel 3, the bottom of the sewage discharge channel 3 is provided with a sedimentation tank 4, the right side of the sedimentation tank 4 is provided with a water reservoir 5, a ventilation duct 6 is provided above the water reservoir 5, the right side of the ventilation duct 6 is provided with an air inlet 7, and the ventilation duct 6 is provided with a There is a partition 8, a guide plate 9 is provided above the connecting cavity 2, a spray pipe 10 is installed above the guide plate 9, a dust collecting electrode 11 and a discharge electrode 12 are provided on the outside of the spray pipe 10, exhaust ports 13 are provided at both ends of the top of the shell body 1, a water baffle 14 is provided at the bottom of the exhaust port 13, a protective shell 15 is provided in the middle of the top of the shell body 1, a high-voltage power supply device 16 is provided in the protective shell 15, an electrode insulator 17 is provided below the high-voltage power supply device 16, the discharge electrode 12 and the dust collecting electrode 11 are connected to the high-voltage power supply device 16 through the electrode insulator 17, a water purification device 18 is provided on the right side of the shell body 1, the water purification device 18 is connected to the water pump 19 and the water reservoir 5 respectively through the water pipe 20, and the water pump 19 is connected to the spray pipe 10 through the water pipe 20.
[0006] An observation window 101 is provided on the right wall of the housing body 1. The observation window 101 is convenient for observing whether the dust on the dust collecting electrode 11 and the discharge electrode 12 is washed clean.
[0007] A first filter screen 401 is provided on the right wall of the sedimentation tank 4. The first filter screen 401 is used to filter dust and impurities.
[0008] A drain valve 402 is provided on the left side of the sedimentation tank 4. The drain valve 402 is used to discharge the sediment in the sedimentation tank 4.
[0009] The spray pipe 10 is an inverted T-shaped spray pipe.
[0010] The spray pipe 10 includes a vertical spray pipe 1001, a horizontal spray pipe 1002, an annular spray head 1003, and a scattering nozzle 1004. The vertical spray pipe 1001 is vertically connected to the horizontal spray pipe 1002. The vertical spray pipe 1001 is provided with a plurality of annular spray heads 1003, and the horizontal spray pipe 1002 is provided with a plurality of scattering nozzles 1004.
[0011] A second filter screen 1301 is disposed inside the bottom of the air outlet 13. The second filter screen 1301 is used to prevent external dust from entering.
[0012] The water retaining plate 14 includes a wave plate 1401 and a curved plate 1402. The curved plate 1402 is fixed on the wave plate 1401. The wave plate 1401 and the curved plate 1402 are used to block water vapor.
[0013] The working principle of the present invention is as follows: a connecting chamber 2 is provided at the bottom of the shell body 1, a sewage discharge channel 3 is provided at the bottom of the connecting chamber 2, a sedimentation tank 4 is provided at the bottom of the sewage discharge channel 3, a water storage tank 5 is provided on the right side of the sedimentation tank 4, a ventilation duct 6 is provided above the water storage tank 5, an air inlet 7 is provided on the right side of the ventilation duct 6, a partition 8 is provided in the ventilation duct 6, a guide plate 9 is provided above the connecting chamber 2, a spray pipe 10 is installed above the guide plate 9, a dust collecting electrode 11 and a discharge electrode 12 are provided on the outside of the spray pipe 10, and a discharge electrode 12 is provided at both ends of the top of the shell body 1. The air outlet 13 is provided with a water baffle 14 at the bottom of the air outlet 13, a protective shell 15 is provided in the middle of the top of the shell body 1, a high-voltage power supply device 16 is provided in the protective shell 15, an electrode insulator 17 is provided below the high-voltage power supply device 16, the discharge electrode 12 and the dust collecting electrode 11 are connected to the high-voltage power supply device 16 through the electrode insulator 17, a water purification device 18 is provided on the right side of the shell body 1, the water purification device 18 is connected to the water pump 19 and the water reservoir 5 through the water pipe 20, the water pump 19 is connected to the spray pipe 10 through the water pipe 20, and the water pump 19 is connected to the spray pipe 10 through the ventilation duct 6. The partition plate 8 and the water surface of the water reservoir 5 form a self-excited dust collector for one time, and then the flue gas is subjected to secondary dust removal through the horizontal spray pipe 1002, and then the high-voltage DC electric field is generated by the discharge electrode 12 and the dust collecting electrode 11 to adsorb the dust on the discharge electrode 12 and the dust collecting electrode 11 for tertiary dust removal. The water in the water reservoir 5 is extracted by the water pump 19, and the water is filtered and purified by the water purification device 18 and then flows into the spray pipe 10, and then the dust on the discharge electrode 12 and the dust collecting electrode 11 is washed clean by the annular spray head 1003. The air after dust removal passes through the water baffle 14, and the water-containing air is filtered by the wave plate 1401 and the arc plate 1402. At the same time, the sewage with dust is discharged into the sedimentation tank 4 through the sewage discharge channel 3. After the sewage is precipitated, the water without sediment on the surface is filtered into the water storage tank 5 through the second filter net 1301. When the sedimentation tank 4 needs to be cleaned, it is cleaned by opening the sewage valve 402. The water filtered by the water purification device 18 is continuously circulated as the water supply of the spray pipe 10, which saves water and does not cause pollution.
[0014] After adopting the above technical scheme, the beneficial effects of the present invention are: it improves the dust removal effect and reduces safety hazards through multi-stage and multiple dust removal, and at the same time recycles the wastewater after dust removal, which is energy-saving and environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art 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 paying creative work.
[0016] Figure 1 It is a structural schematic diagram of the present invention.
[0017] Figure 2 It is a schematic diagram of the structure of the spray pipe 10 in the present invention.
[0018] Figure 3 yes Figure 1 Enlarged view of part A in the middle.
[0019] Explanation of the accompanying drawings: shell body 1, observation window 101, connecting chamber 2, sewage channel 3, sedimentation tank 4, first filter 401, sewage valve 402, water reservoir 5, ventilation duct 6, air inlet 7, partition 8, guide plate 9, spray pipe 10, vertical spray pipe 1001, horizontal spray pipe 1002, annular spray head 1003, scattering nozzle 1004, dust collecting electrode 11, discharge electrode 12, exhaust port 13, second filter 1301, water baffle 14, wave plate 1401, arc plate 1402, protective shell 15, high-voltage power supply device 16, electrode insulator 17, water purification device 18, water pump 19, water pipe 20. DETAILED DESCRIPTION
[0020] See also Figure 1-Figure 3As shown, the technical solution adopted in this specific embodiment is: it consists of a shell body 1, a connecting cavity 2, a sewage channel 3, a sedimentation tank 4, a water storage tank 5, a ventilation duct 6, an air inlet 7, a partition 8, a guide plate 9, a spray pipe 10, a dust collecting electrode 11, a discharge electrode 12, an air outlet 13, a water retaining plate 14, a protective shell 15, a high-voltage power supply device 16, an electrode insulator 17, a water purification device 18, a water pump 19, and a water pipe 20. The bottom of the shell body 1 is provided with a connecting cavity 2, and the connecting cavity 2 is used to connect the ventilation duct 6, a sewage channel 3 is provided at the bottom of the connecting chamber 2, the sewage channel 3 is used for sewage drainage, a sedimentation tank 4 is provided at the bottom of the sewage channel 3, the sedimentation tank 4 is used for sewage recycling, a water reservoir 5 is provided on the right side of the sedimentation tank 4, the water reservoir 5 is used to store filtered water, a ventilation duct 6 is provided above the water reservoir 5, an air inlet 7 is provided on the right side of the ventilation duct 6, a partition 8 is provided in the ventilation duct 6, a guide plate 9 is provided above the connecting chamber 2, and the guide plate 9 is used to make the smoke enter The flow velocity of each section before entering the electric field is as uniform as possible, which plays a role in dispersing the flue gas, so that the flue gas can be treated more completely. A spray pipe 10 is installed above the guide plate 9, and a dust collecting electrode 11 and a discharge electrode 12 are arranged on the outside of the spray pipe 10. Exhaust ports 13 are arranged at both ends of the top of the shell body 1, and a water baffle 14 is arranged at the bottom of the exhaust port 13. The water baffle 14 is used to block the purified water vapor. A protective shell 15 is provided in the middle of the top of the shell body 1. A high-voltage power supply device 16 is arranged in the protective shell 15. The high-voltage power supply device 16 is used to provide high voltage electricity for the dust collecting electrode 11 and the discharge electrode 12. An electrode insulator 17 is provided below the high-voltage power supply device 16. The electrode insulator 17 is used to prevent creepage and leakage. The discharge electrode 12 and the dust collecting electrode 11 are connected to the high-voltage power supply device 16 through the electrode insulator 17. A water purification device 18 is provided on the right side of the shell body 1. The water purification device 18 is connected to a water pump 19 and a water reservoir 5 through a water pipe 20, and the water pump 19 is connected to the spray pipe 10 through a water pipe 20.
[0021] An observation window 101 is provided on the right wall of the housing body 1. The observation window 101 is convenient for observing whether the dust on the dust collecting electrode 11 and the discharge electrode 12 is washed clean.
[0022] A first filter screen 401 is provided on the right wall of the sedimentation tank 4. The first filter screen 401 is used to filter dust and impurities.
[0023] A drain valve 402 is provided on the left side of the sedimentation tank 4. The drain valve 402 is used to discharge the sediment in the sedimentation tank 4.
[0024] The spray pipe 10 is an inverted T-shaped spray pipe.
[0025] The spray pipe 10 includes a vertical spray pipe 1001, a horizontal spray pipe 1002, an annular spray head 1003, and a scattering nozzle 1004. The vertical spray pipe 1001 is vertically connected to the horizontal spray pipe 1002. The vertical spray pipe 1001 is provided with a plurality of annular spray heads 1003, and the horizontal spray pipe 1002 is provided with a plurality of scattering nozzles 1004.
[0026] A second filter screen 1301 is disposed inside the bottom of the air outlet 13. The second filter screen 1301 is used to prevent external dust from entering.
[0027] The water retaining plate 14 includes a wave plate 1401 and a curved plate 1402. The curved plate 1402 is fixed on the wave plate 1401. The wave plate 1401 and the curved plate 1402 are used to block water vapor.
[0028] The working principle of the present invention is as follows: a connecting chamber 2 is provided at the bottom of the shell body 1, a sewage discharge channel 3 is provided at the bottom of the connecting chamber 2, a sedimentation tank 4 is provided at the bottom of the sewage discharge channel 3, a water storage tank 5 is provided on the right side of the sedimentation tank 4, a ventilation duct 6 is provided above the water storage tank 5, an air inlet 7 is provided on the right side of the ventilation duct 6, a partition 8 is provided in the ventilation duct 6, a guide plate 9 is provided above the connecting chamber 2, a spray pipe 10 is installed above the guide plate 9, a dust collecting electrode 11 and a discharge electrode 12 are provided on the outside of the spray pipe 10, and a discharge electrode 12 is provided at both ends of the top of the shell body 1. The air outlet 13 is provided with a water baffle 14 at the bottom of the air outlet 13, a protective shell 15 is provided in the middle of the top of the shell body 1, a high-voltage power supply device 16 is provided in the protective shell 15, an electrode insulator 17 is provided below the high-voltage power supply device 16, the discharge electrode 12 and the dust collecting electrode 11 are connected to the high-voltage power supply device 16 through the electrode insulator 17, a water purification device 18 is provided on the right side of the shell body 1, the water purification device 18 is connected to the water pump 19 and the water reservoir 5 through the water pipe 20, the water pump 19 is connected to the spray pipe 10 through the water pipe 20, and the water pump 19 is connected to the spray pipe 10 through the ventilation duct 6. The partition plate 8 and the water surface of the water reservoir 5 form a self-excited dust collector for one time, and then the flue gas is subjected to secondary dust removal through the horizontal spray pipe 1002, and then the high-voltage DC electric field is generated by the discharge electrode 12 and the dust collecting electrode 11 to adsorb the dust on the discharge electrode 12 and the dust collecting electrode 11 for tertiary dust removal. The water in the water reservoir 5 is extracted by the water pump 19, and the water is filtered and purified by the water purification device 18 and then flows into the spray pipe 10, and then the dust on the discharge electrode 12 and the dust collecting electrode 11 is washed clean by the annular spray head 1003. The air after dust removal passes through the water baffle 14, and the water-containing air is filtered by the wave plate 1401 and the arc plate 1402. At the same time, the sewage with dust is discharged into the sedimentation tank 4 through the sewage discharge channel 3. After the sewage is precipitated, the water without sediment on the surface is filtered into the water storage tank 5 through the second filter net 1301. When the sedimentation tank 4 needs to be cleaned, it is cleaned by opening the sewage valve 402. The water filtered by the water purification device 18 is continuously circulated as the water supply of the spray pipe 10, which saves water and does not cause pollution.
[0029] After adopting the above technical scheme, the beneficial effects of the present invention are: it improves the dust removal effect and reduces safety hazards through multi-stage and multiple dust removal, and at the same time recycles the wastewater after dust removal, which is energy-saving and environmentally friendly.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0031] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.
Claims
1. A comprehensive wet dust collector, Features: It consists of a shell body (1), a connecting cavity (2), a sewage discharge channel (3), a sedimentation tank (4), a water storage tank (5), a ventilation duct (6), an air inlet (7), a partition (8), a guide plate (9), a spray pipe (10), a dust collecting electrode (11), a discharge electrode (12), an air outlet (13), a water baffle (14), a protective shell (15), a high-voltage power supply device (16), an electrode insulator (17), a water purification device (18), a water pump (19), and a water pipe (20). The bottom of the shell body (1) is provided with a connecting cavity (2), the connecting cavity (2) is used to connect the ventilation duct (6), the bottom of the connecting cavity (2) is provided with a sewage discharge channel (3), the bottom of the sewage discharge channel (3) is provided with a sedimentation tank (4), the right side of the sedimentation tank (4) is provided with a water storage tank (5), the top of the water storage tank (5) is provided with a ventilation duct (6), the right side of the ventilation duct (6) is provided with an air inlet (7), and the inside of the ventilation duct (6) is provided with a water storage tank (5). A partition (8) is provided, a guide plate (9) is provided above the communicating chamber (2), a spray pipe (10) is installed above the guide plate (9), a dust collecting electrode (11) and a discharge electrode (12) are provided on the outside of the spray pipe (10), exhaust ports (13) are provided at both ends of the top of the shell body (1), a water baffle (14) is provided at the bottom of the exhaust port (13), a protective shell (15) is provided in the middle of the top of the shell body (1), and a high-pressure supply is provided in the protective shell (15). An electrode insulator (17) is provided below the high-voltage power supply device (16); the discharge electrode (12) and the dust collecting electrode (11) are connected to the high-voltage power supply device (16) via the electrode insulator (17); a water purification device (18) is provided on the right side of the housing body (1); the water purification device (18) is connected to a water pump (19) and a water reservoir (5) via a water pipe (20); and the water pump (19) is connected to a spray pipe (10) via a water pipe (20); An observation window (101) is provided on the right wall of the housing body (1); A first filter screen (401) is provided on the right wall of the sedimentation tank (4).
2. A comprehensive wet dust collector according to claim 1, Features: A sewage valve (402) is provided on the left side of the sedimentation tank (4).
3. A comprehensive wet dust collector according to claim 1, Features: The spray pipe (10) is an inverted T-shaped spray pipe.
4. A comprehensive wet dust collector according to claim 1, Features: The spray pipe (10) comprises a vertical spray pipe (1001), a horizontal spray pipe (1002), an annular spray head (1003), and a scattering spray head (1004); the vertical spray pipe (1001) is vertically connected to the horizontal spray pipe (1002); a plurality of annular spray heads (1003) are arranged on the vertical spray pipe (1001); and a plurality of scattering spray heads (1004) are arranged on the horizontal spray pipe (1002).
5. A comprehensive wet dust collector according to claim 1, Features: A second filter screen (1301) is provided on the inner side of the bottom of the air outlet (13).
6. A comprehensive wet dust collector according to claim 1, Features: The water retaining plate (14) comprises a wave plate (1401) and an arc plate (1402), and the arc plate (1402) is fixed on the wave plate (1401).