Novel electric demister

Abstract

The utility model relates to the technical field of environmental protection, and discloses a novel electric demister which comprises an upper air chamber, a dust collection chamber is integrally formed at the bottom of the upper air chamber and communicated with the upper air chamber, and a lower air chamber is integrally formed at the bottom of the dust collection chamber and communicated with the dust collection chamber. According to the novel electric demister, the anode tube is made of the CPVC material, the inner layer is compounded with the conductive carbon black, the temperature resistance is higher than 100 DEG C, the aging resistance is excellent, the acid mist corrosion resistance is excellent, the strength is equivalent to the strength of hand lay-up glass fiber reinforced plastic, the conductivity of the anode tube is facilitated, and the thickness of the conductive carbon black layer can be increased or decreased and controlled according to the required thickness; the CPVC anode tube is subjected to extrusion molding, the inner wall is smooth, liquid drops and dust deposited on the inner wall in the running process of electric fog easily fall off due to self weight, CPVC is not prone to combustion, excellent in temperature resistance and safe and controllable, the preparation cost is higher than that of conductive glass fiber reinforced plastic, the cost is saved, and the safety is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, and particularly relates to a novel electric demister. Background Technique

[0002] At present, electric demisters have been widely used in the field of purifying acid mist from the tail gas of sulfuric acid industry, and are essential equipment in sulfuric acid production. The wet electric demister is a high-efficiency gas-liquid separation device, which captures and deeply purifies micron and sub-micron particles contained in the washed flue gas, so that the dust, droplets, etc. in the discharged tail gas reach the pollutant discharge standard value, ensuring the clean discharge of the discharged tail gas. An adjustable high-voltage direct current is introduced into the device, so that the corona electrode suspended in the device continuously emits electrons, ionizing part of the gas between the electrodes into positive and negative ions and charging them. According to the principle of like charges repelling and opposite charges attracting, the charged acid mist and trace dust particles move in the directions opposite to the electrode polarities respectively. The acid mist, dust, etc. dispersed in the gas collide with the negatively charged ions and are charged. Under the action of the electric field, the charged acid mist, dust, etc. precipitate on the inner wall of the anode tube, forming droplets, which flow down by their own weight, purifying the flue gas. The electric demister has a good removal effect on acid mist, toxic heavy metals, and PM10, especially fine dust of PM2.5, effectively removing residual acid mist, PM2.5 dust, SO3, mercury and its oxides and other pollutants in the flue gas.

[0003] There are various types of electric demisters. One electric demister disclosed in Chinese Patent CN208303023U can be referred to, including structures such as an electric demister body. However, at present, most electric demisters on the market adopt conductive fiberglass materials to optimize the production cost of the anode tube. However, electric field spark discharge is likely to occur during high-voltage discharge, and fiberglass materials are flammable with high safety risks. Therefore, a novel electric demister is proposed to solve the above problems. Content of the Utility Model

[0004] (1) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a novel electric demister, which has the advantages of high safety, etc., and solves the problem of poor safety of traditional electric demisters.

[0006] (2) Technical Solutions

[0007] To achieve the above high-safety purpose, the utility model provides the following technical solution: A novel electric demister includes an upper gas chamber, a dust collection chamber is integrally formed at the bottom of the upper gas chamber, the dust collection chamber is communicated with the upper gas chamber, a lower gas chamber is integrally formed at the bottom of the dust collection chamber, and the lower gas chamber is communicated with the dust collection chamber.

[0008] The interior of the dust collection chamber is provided with a plurality of anode tubes. The outside of the upper gas chamber is provided with a plurality of insulating boxes. The outside of the insulating box is provided with an expansion joint. The interior of the insulating box is provided with a spraying device with one end penetrating into the interior of the upper gas chamber. The interior of the upper gas chamber is provided with an upper cathode hanger. The lower end of the upper cathode hanger is provided with a plurality of cathode wires penetrating through the anode tubes at the same corresponding positions. The cathode wires penetrate through the anode tubes and extend to the bottom of the dust collection chamber. The interior of the lower gas chamber is provided with a lower cathode frame. The outside of the cathode wires is arranged inside the cathode frame. The lower end of the cathode wires is provided with weights. The interior of the lower gas chamber is provided with a distribution plate. The inner wall of the lower gas chamber is provided with a distribution plate. The inner wall of the lower gas chamber is provided with a guide plate located below the distribution plate. A support beam is arranged between the guide plate and the distribution plate. The bottom of the lower gas chamber is provided with an expansion joint flange.

[0009] Preferably, a cross beam is integrally formed inside the dust collection chamber, and the center point of the cross beam is on the same vertical line as the center point of the dust collection chamber.

[0010] Preferably, the dust collection chamber is divided into four regions of the same specification by the cross beam, and the anode tubes in each region are distributed in the same quantity.

[0011] Preferably, the arrangement shape of the anode tubes in the four regions is a regular hexagonal honeycomb shape.

[0012] Preferably, the anode tubes are CPVC anode tubes, and the inner layer of the anode tubes is compounded with conductive carbon black.

[0013] Preferably, a flue gas outlet is provided at the bottom end of the lower gas chamber.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the present invention provides a novel electric demister, which has the following beneficial effects:

[0016] For this novel electric demister, the anode tubes are made of CPVC material, with conductive carbon black compounded in the inner layer, a temperature resistance greater than 100 °C, excellent anti-aging performance, excellent acid mist corrosion resistance, a strength equivalent to that of hand-laid fiberglass, which is beneficial to the conductivity of the anode tubes, and the thickness of the conductive carbon black layer can be controlled to increase or decrease according to the required thickness. Moreover, for this novel electric demister, the CPVC anode tubes are extruded and formed with a smooth inner wall. During the operation of the electric mist, the droplets and dust deposited on the inner wall are extremely easy to fall off by their own weight. And CPVC is not easy to burn, has excellent temperature resistance performance, is safe and controllable, and has a higher cost performance compared with conductive fiberglass in terms of preparation cost. It not only saves costs, but also effectively guarantees safety. Description of the drawings

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] Figure 2 This is the side sectional view of the present utility model;

[0019] Figure 3 This is the top sectional view of the connection structure between the dust collection chamber and the anode tube of the present utility model.

[0020] In the figure: 1. Insulation box; 2. Expansion joint; 3. Spraying device; 4. Upper gas chamber; 5. Upper cathode hanger; 6. Dust collection chamber; 7. Cathode wire; 8. Lower cathode frame; 9. Plumb bob; 10. Distribution plate; 11. Support beam; 12. Deflector; 13. Expansion joint flange; 14. Cross beam; 15. Lower gas chamber; 16. Anode tube. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-3 , to achieve the above high safety purpose, the present utility model provides the following technical solutions: A new type of electric demister, including an upper gas chamber 4, the bottom of the upper gas chamber 4 is integrally formed with a dust collection chamber 6, the dust collection chamber 6 is communicated with the upper gas chamber 4, the bottom of the dust collection chamber 6 is integrally formed with a lower gas chamber 15, the lower gas chamber 15 is communicated with the dust collection chamber 6, and a flue gas outlet is provided at the bottom end of the lower gas chamber 15.

[0023] Among them, a plurality of anode tubes 16 are provided inside the dust collection chamber 6, a plurality of insulation boxes 1 are provided outside the upper gas chamber 4, an expansion joint 2 is provided outside the insulation box 1, a spraying device 3 with one end penetrating into the upper gas chamber 4 is provided inside the insulation box 1, an upper cathode hanger 5 is provided inside the upper gas chamber 4, the lower end of the upper cathode hanger 5 is provided with a plurality of cathode wires 7 that penetrate through the anode tubes 16 at the same corresponding positions, the cathode wires 7 penetrate through the anode tubes 16 and extend to the bottom of the dust collection chamber 6, a lower cathode frame 8 is provided inside the lower gas chamber 15, the cathode wires 7 are arranged inside the cathode frame 8, a plumb bob 9 is provided at the lower end of the cathode wires 7, a distribution plate 10 is provided inside the lower gas chamber 15, the inner wall of the lower gas chamber 15 is provided with a distribution plate 10, a deflector 12 located below the distribution plate 10 is provided on the inner wall of the lower gas chamber 15, a support beam 11 is provided between the deflector 12 and the distribution plate 10, and an expansion joint flange 13 is provided at the bottom of the lower gas chamber 15.

[0024] In addition, a cross beam 14 is integrally formed inside the dust collection chamber 6. The center point of the cross beam 14 and the center point of the dust collection chamber 6 are on the same vertical line. The dust collection chamber 6 is divided into four regions of the same specification by the cross beam 14, and the number of anode tubes 16 in each region is the same. The arrangement shape of the anode tubes 16 in the four regions is a regular hexagonal honeycomb shape.

[0025] As can be illustrated in the above embodiments, designing the anode tube as a regular hexagonal honeycomb shape can increase the effective utilization area under the same cross section.

[0026] In addition, the anode tube 16 is a CPVC anode tube, and the inner layer of the anode tube 16 is compounded with conductive carbon black.

[0027] It can be understood that the anode tube 16 made of CPVC material compounded with a conductive carbon black coating can effectively resist high temperature and corrosion, and enhance safety.

[0028] The working principle of this embodiment is as follows:

[0029] After the flue gas is washed, it is sent into the electrostatic demister. In the electrostatic demister, the corona electrode continuously emits electrons, and the gas between the electrodes is ionized into positive and negative ions to be charged. According to the principle of like charges repelling and opposite charges attracting, the charged acid mist and trace dust particles move in opposite directions to the electrodes with opposite polarities. The positive ions move towards the corona electrode, while the electrons and negative ions move towards the precipitation anode. Under the action of the electric field, the charged acid mist, dust, etc. precipitate on the inner wall of the anode tube 16 to form droplets, which fall off due to their own weight, so that the flue gas is purified. The purified flue gas is discharged up to the standard through the chimney.

[0030] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of electric demister, comprising: An upper gas chamber (4), at the bottom of which a dust collection chamber (6) is integrally formed. The dust collection chamber (6) is communicated with the upper gas chamber (4). At the bottom of the dust collection chamber (6), a lower gas chamber (15) is integrally formed. The lower gas chamber (15) is communicated with the dust collection chamber (6); It is characterized in that: Inside the dust collection chamber (6), there are a plurality of anode tubes (16). Outside the upper gas chamber (4), there are a plurality of insulating boxes (1). Outside the insulating boxes (1), there are expansion joints (2). Inside the insulating boxes (1), there is a spraying device (3) with one end penetrating into the upper gas chamber (4). Inside the upper gas chamber (4), there is an upper cathode hanger (5). At the lower end of the upper cathode hanger (5), there are a plurality of cathode wires (7) passing through the anode tubes (16) at the same corresponding positions. The cathode wires (7) penetrate through the anode tubes (16) and extend to the bottom of the dust collection chamber (6). Inside the lower gas chamber (15), there is a lower cathode frame (8). The outside of the cathode wires (7) is arranged inside the cathode frame (8). At the lower end of the cathode wires (7), there are weights (9). Inside the lower gas chamber (15), there is a distribution plate (10). The inner wall of the lower gas chamber (15) is provided with a distribution plate (10). The inner wall of the lower gas chamber (15) is provided with a guide plate (12) below the distribution plate (10). Between the guide plate (12) and the distribution plate (10), there is a support beam (11). At the bottom of the lower gas chamber (15), there is an expansion joint flange (13).

2. The novel electric demister according to claim 1, characterized in that: Inside the dust collection chamber (6), a cross beam (14) is integrally formed. The center point of the cross beam (14) and the center point of the dust collection chamber (6) are on the same vertical line.

3. The novel electric demister according to claim 2, characterized in that: The dust collection chamber (6) is divided into four regions of the same specification by the cross beam (14), and the anode tubes (16) in each region are distributed in the same quantity.

4. A novel electric demister according to claim 3, characterized in that: The arrangement shapes of the anode tubes (16) in the four regions are all regular hexagonal honeycombs.

5. A novel electric demister according to claim 1, characterized in that: The anode tubes (16) are CPVC anode tubes, and the inner layer of the anode tubes (16) is compounded with conductive carbon black.

6. The novel electric demister according to claim 1, wherein: At the bottom end of the lower gas chamber (15), there is a flue gas outlet.

Images