Converter wet dedusting flue gas ultra-clean emission equipment

Abstract

According to the converter wet dust removal flue gas ultra-clean emission equipment, a metal filter drum is installed in an equipment body, a built-in dehydrator is installed at the bottom of an inner cavity of the equipment body, an outlet butt joint pipe is installed at an outlet of the built-in dehydrator, and an ultrasonic atomization nozzle is arranged at the top of the equipment body; and a spray gun maintenance platform is installed at the position, located at the ultrasonic atomizing nozzle, of the equipment body, and a connecting pipeline is fixedly connected to the upper portion of the side edge of the equipment body. The sunken cyclone dehydrator has the beneficial effects that the original baffle type rotary dehydrator is changed into the sunken cyclone dehydrator. And a metal filter screen is additionally arranged, and a spray gun is optimized synchronously to form a water film for purifying flue gas. An original spiral water spray gun is changed into a double-medium supersonic air fog water spray gun, capture of fine particles in smoke is enhanced, a water film is formed on the surface of the metal filter screen, meanwhile, the filter screen is continuously cleaned, and the service life is prolonged. The cylinder body is heightened, the volume is increased, the flowing time of airflow in the cylinder body is prolonged, and the effective time of capturing dust particles by aerial fog is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of converter wet dust removal equipment, in particular to converter wet dust removal fume ultra-clean emission equipment. Background Art

[0002] According to the design capacity of the original wet dust removal process, the chimney emission is 50mg / m 3 The ground wet cyclone dehydrator is responsible for removing 50mg / m 3 -100mg / m 3 The original structure is that the flue gas flows from top to bottom, the upper part uses a spiral spray gun (the medium is turbid water) to increase the capture of particles, and the lower part uses a ring-shaped multi-layer baffle to reduce the wind speed and change the wind direction to achieve the purpose of shedding large water droplets containing dust particles.

[0003] For details of the original process, please see Figure 8 The air enters from the upper side, is captured by the spiral spray gun, and then enters the multi-layer annular baffle to decelerate and dehydrate. The treated flue gas flows from the central tube to the front end of the fan. The structure is relatively simple. Due to the high negative pressure and fast flow rate of the central tube, most of the particles that cannot be agglomerated are taken away by the fan. The spacing between the annular baffles is only about 200mm, and the height direction is greater than 4000mm. After the center is scaled, it is impossible to perform daily cleaning and maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a converter wet dust removal flue gas ultra-clean emission equipment in view of the shortcomings and defects in the prior art, and to change the original baffle-type rotary dehydrator into a sinking cyclone dehydrator. A metal filter is added, and the synchronous spray gun is optimized to form a water film to purify the flue gas. The original spiral water spray gun is changed into a dual-medium supersonic aerosol water spray gun to enhance the capture of fine particles in the flue gas, and while forming a water film on the surface of the metal filter, the filter is also continuously cleaned to extend the service life. The cylinder is heightened to increase the volume, prolong the flow time of the airflow in the cylinder, and increase the effective time of the aerosol to capture dust particles.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a converter wet dust removal flue gas ultra-clean emission equipment, which includes an equipment body 3, a metal filter cartridge 2 is installed inside the equipment body 3, and a built-in dehydrator 1 is installed at the bottom of the inner cavity of the equipment body 3, and an outlet butt pipe 4 is installed at the outlet of the built-in dehydrator 1, an ultrasonic atomizing nozzle 5 is provided on the top of the equipment body 3, and a spray gun maintenance platform 6 is installed at the ultrasonic atomizing nozzle 5 of the equipment body 3, and a connecting pipe 7 is fixedly connected to the upper side of the equipment body 3, and an inlet butt pipe 8 is installed at the inlet of the connecting pipe 7.

[0006] Furthermore, a pipe body support frame 9 for supporting the inlet butt joint pipe 8 is installed below the inlet butt joint pipe 8 .

[0007] Furthermore, the ultrasonic atomizing nozzle 5 comprises a nozzle 5-2, and the nozzle 5-2 is sleeved in the water cavity shell 5-1, and a fluororubber O-ring 5-3 is installed between the water cavity shell 5-1 and the nozzle 5-2.

[0008] Furthermore, the built-in dehydrator 1 is a downward-sinking cyclone dehydrator.

[0009] Furthermore, the ultrasonic atomizing nozzle 5 is a dual-medium supersonic air-mist water spray gun.

[0010] Furthermore, the filter hole diameters of the metal filter cartridge 2 include 1 mm, 2 mm and 3 mm.

[0011] After adopting the above technical scheme, the utility model has the following beneficial effects: the original baffle-type rotary dehydrator is changed to a sinking cyclone dehydrator. A metal filter is added, and the synchronous spray gun is optimized to form a water film to purify the flue gas. The original spiral water spray gun is changed to a dual-medium supersonic air mist water spray gun to enhance the capture of fine particles in the flue gas, and while forming a water film on the surface of the metal filter, the filter is also continuously cleaned to extend the service life. The cylinder is heightened to increase the volume, prolong the flow time of the airflow in the cylinder, and increase the effective time for the aerosol to capture dust particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 yes Figure 1 AA section diagram.

[0015] Figure 3 yes Figure 1 Schematic diagram of the BB cross-section.

[0016] Figure 4 It is a structural schematic diagram of the built-in dehydrator in the utility model.

[0017] Figure 5 This Figure 4 Schematic diagram of CC section view.

[0018] Figure 6 It is a structural schematic diagram of the metal filter cartridge in the utility model.

[0019] Figure 7 It is a structural schematic diagram of the ultrasonic atomizing nozzle in the utility model.

[0020] Figure 8 It is a structural diagram of the prior art.

[0021] Explanation of the reference numerals: built-in dehydrator 1, metal filter cartridge 2, equipment body 3, outlet butt joint 4, ultrasonic atomizing nozzle 5, spray gun maintenance platform 6, connecting pipe 7, inlet butt joint 8, pipe body support frame 9, water chamber shell 5-1, nozzle 5-2, fluororubber O-ring 5-3. DETAILED DESCRIPTION

[0022] See also Figure 1-Figure 7 As shown, the technical solution adopted in this specific embodiment is: it includes an equipment body 3, a metal filter cartridge 2 is installed inside the equipment body 3, and a built-in dehydrator 1 is installed at the bottom of the inner cavity of the equipment body 3, an outlet butt pipe 4 is installed at the outlet of the built-in dehydrator 1, an ultrasonic atomizing nozzle 5 is provided on the top of the equipment body 3, and a spray gun maintenance platform 6 is installed at the ultrasonic atomizing nozzle 5 of the equipment body 3, and a connecting pipe 7 is fixedly connected to the upper side of the equipment body 3, and an inlet butt pipe 8 is installed at the inlet of the connecting pipe 7.

[0023] To explain more specifically, a pipe body support frame 9 for supporting the inlet butt pipe 8 is installed below the inlet butt pipe 8 .

[0024] More specifically, the ultrasonic atomizing nozzle 5 includes a nozzle 5-2, which is sleeved in a water chamber housing 5-1, and a fluororubber O-ring 5-3 is installed between the water chamber housing 5-1 and the nozzle 5-2.

[0025] To be more specific, the built-in dehydrator 1 is a downward-sinking cyclone dehydrator.

[0026] More specifically, the ultrasonic atomizing nozzle 5 is a dual-medium supersonic air-mist water spray gun.

[0027] More specifically, the filter hole diameters of the metal filter cartridge 2 include 1 mm, 2 mm and 3 mm.

[0028] More specifically, the built-in dehydrator 1 is composed of 24 arc-shaped baffles, which are evenly distributed according to the diameter of 2400 and rotate one circle around the center, so that a counterclockwise rotating airflow is formed at the outlet of the air duct. The built-in dehydrator 1 mainly promotes the rotation of the airflow to generate centrifugal force to hit the baffle to slow down, so as to better realize the dehydration function. Secondly, it is easy to maintain. The dust can be easily cleaned only on the outside of the dehydrator.

[0029] More specifically, the ultrasonic atomizing nozzle 5 provides sufficient water film medium for the surface of the metal filter, and can also clean the particles already attached to the surface of the filter to make them fall off to the water seal. Continuous cleaning ensures that the holes of the filter will not be blocked by particles, thereby extending the service life. Another important function is to provide atomized water vapor so that dust particles can be fully captured. The center of the ultrasonic atomizing nozzle 5 is connected to steam, and there are 4 Φ2mm holes on the outside for water passage. The supersonic diffused airflow is formed by spraying through the Venturi principle, so that the mixture of water and steam is fully atomized to better capture fine dust particles.

[0030] Working principle of the utility model: Modification content 1: The guide plate of the built-in dehydrator 1 is designed with a rotating guide plate. This method promotes the smoke rotation to generate centrifugal force to increase the impact force, and also increases the effective working area of ​​the baffle by 1 / 4. Secondly, it is convenient for daily cleaning of dust accumulation on the guide plate, and the operation and maintenance are convenient. The guide dehydration plate is installed at the bottom to increase the time for smoke to agglomerate inside the wet cyclone. The time for capturing and agglomerating particles in the cylinder after dual-medium atomization is increased by about 2.5s.

[0031] Renovation content 2: Design a special metal filter cartridge 2. The diameter of the filter hole of the metal filter cartridge 2 has three modes of Φ1mm, Φ2mm, and Φ3mm to choose from. A water film layer is formed at each hole of the metal filter cartridge 2 through a dual-media spray gun. When the dust-containing gas passes through the water film layer, it is equivalent to a water cleaning, allowing the original small agglomerated water droplets to grow through the water, and allowing large particles to be decelerated and attached to the filter screen to be washed off into the water seal.

[0032] Renovation content 3: The original spiral water spray gun is replaced with a dual-media aerosol spray gun. Under the high pressure of steam, the clean water is quickly atomized over a large area through the ultrasonic atomization nozzle 5 to better capture fine dust particles. At the same time, the atomized aerosol captures the dust and condenses into water particles in the new space, becoming larger and heavier. Some of them fall directly into the water seal, and the other part hits the dehydration plate to slow down and change direction before falling into the inner and outer discharges of the water seal.

[0033] Modification content 4: The original wet cyclone dehydrator is raised by another 3 meters, and the air inlet is also moved up by 3 meters. According to theoretical calculations, the particle capture and agglomeration time can be increased by about 2 seconds at a wind speed of 1.59m / s.

[0034] The above is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A converter wet dust removal flue gas ultra-clean emission equipment, characterized by: The device comprises a device body (3), wherein a metal filter cartridge (2) is installed inside the device body (3), and a built-in dehydrator (1) is installed at the bottom of the inner cavity of the device body (3), and an outlet butt joint (4) is installed at the outlet of the built-in dehydrator (1), an ultrasonic atomizing nozzle (5) is provided at the top of the device body (3), and a spray gun maintenance platform (6) is installed at the ultrasonic atomizing nozzle (5) of the device body (3), and a connecting pipe (7) is fixedly connected to the upper side of the device body (3), and an inlet butt joint (8) is installed at the inlet of the connecting pipe (7).

2. The ultra-clean exhaust equipment for wet dust removal of converter flue gas according to claim 1, characterized in that: A pipe body support frame (9) for supporting the inlet butt joint pipe (8) is installed below the inlet butt joint pipe (8).

3. The ultra-clean exhaust equipment for wet dust removal of converter flue gas according to claim 1, characterized in that: The ultrasonic atomizing nozzle (5) comprises a nozzle (5-2), the nozzle (5-2) is sleeved in a water cavity shell (5-1), and a fluororubber O-ring (5-3) is installed between the water cavity shell (5-1) and the nozzle (5-2).

4. The ultra-clean exhaust equipment for converter wet dust removal according to claim 1, characterized in that: The built-in dehydrator (1) is a downward-sinking cyclone dehydrator.

5. The ultra-clean exhaust equipment for wet dust removal of converter flue gas according to claim 1, characterized in that: The ultrasonic atomizing nozzle (5) is a dual-medium supersonic air-mist water spray gun.

6. The ultra-clean exhaust equipment for converter wet dust removal according to claim 1, characterized in that: The filter hole diameters of the metal filter cartridge (2) include 1 mm, 2 mm and 3 mm.

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