CN110876984A - Wet-type electric dust remover, anode tube for wet-type electric dust remover and manufacturing method of anode tube - Google Patents

Abstract

The invention discloses a wet-type electric dust collector, an anode tube for the wet-type electric dust collector and a manufacturing method of the anode tube. The invention combines the galvanized spiral air duct and the conductive PP together, has simple production process, short time consumption, high inner surface finish degree, easy washing, high temperature resistance, no leakage point, strong conductivity, strong corrosion resistance, low cost and simple construction process.

Description

Wet electrostatic precipitator, anode tube for wet electrostatic precipitator and method of making the same

technical field

The invention relates to the field of dust removal and environmental protection, in particular to a wet electrostatic precipitator, an anode tube for the wet electrostatic precipitator and a manufacturing method thereof.

Background technique

At present, the commonly used materials for anode tubes in the market are mostly conductive glass fiber reinforced plastic and stainless steel. The conductive glass fiber reinforced plastic anode tube has the following shortcomings: the production process is cumbersome, time-consuming, the inner surface finish is low, not easy to wash, not resistant to high temperature, easy to leak points in the production process, poor conductivity, easy breakdown, poor corrosion resistance; stainless steel The anode tube has the following disadvantages: high cost, troublesome construction process, poor corrosion resistance, poor electrical conductivity, and high operating cost.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is to provide an anode tube for a wet electrostatic precipitator, which has the advantages of high inner surface smoothness, easy flushing, high temperature resistance, no leakage points, strong electrical conductivity, strong corrosion resistance, and low cost. The construction process is simple and so on.

The technical scheme adopted by the present invention to solve the technical problem is as follows: the anode pipe used for the wet electrostatic precipitator comprises a galvanized spiral air duct, and the inner layer of the galvanized spiral air duct is provided with a conductive PP layer.

Further: the conductive PP layer is carbon black conductive PP.

The invention also discloses a manufacturing method for the anode tube of the wet electrostatic precipitator,

Step 1: The galvanized iron sheet is formed into a galvanized spiral air duct through a pipe coiling machine;

Step 2: Heat the conductive PP powder at a high temperature to reach above 180°C by electrostatic spraying to the inner wall of the galvanized spiral air duct.

The invention also discloses a wet electrostatic precipitator, comprising a wet electrostatic precipitator body, the wet electrostatic precipitator body including an anode system, and the anode system including an anode tube, the anode tubes are arranged in a honeycomb shape, and the anode tube includes Galvanized spiral air duct, the inner layer of the galvanized spiral air duct is provided with a conductive PP layer.

Further, the conductive PP layer is carbon black conductive PP.

The beneficial effects of the invention are as follows: the equipment combines the galvanized spiral air duct with the conductive PP, the production process is simple, the time-consuming is short, the inner surface smoothness is high, the cleaning is easy, the high temperature is resistant, there is no leakage point, and the electrical conductivity is strong. Strong anti-corrosion ability, low cost, simple construction process, at the same time, this equipment also has the following advantages:

1. Wide range of use: It can adapt to exhaust gas with high and low concentrations of particulate matter, and can work continuously 24 hours a day, with stable and reliable operation.

2. Low operating cost: The equipment has no mechanical action, no noise, no need for special management and daily maintenance, only regular inspection, no secondary pollution, and low energy consumption.

3. The equipment occupies a small area and is suitable for special conditions such as compact layout and narrow venue.

Description of drawings

Figure 1 is a schematic diagram of an anode tube.

Figure 2 is a schematic diagram of a wet electrostatic precipitator.

Figure 3 is a schematic diagram of the arrangement of anode tubes.

Marked in the figure are: galvanized spiral air duct 1, conductive PP layer 2, wet electrostatic precipitator body 3, anode system 4, anode tube 5.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1, the anode tube for wet electrostatic precipitator includes a galvanized spiral air duct 1. The inner layer of the galvanized spiral air duct 1 is provided with a conductive PP layer 2, and the conductive PP layer 2 is carbon black. Conductive PP, the above-mentioned conductive PP layer 2 is made of PP raw material as base material, adding carbon black, metal fiber, permanent antistatic masterbatch, etc. and mixing, which can achieve antistatic, static dissipative, conductive and electromagnetic wave interference and other functions. Conductive PP has non-toxic, light weight, low water absorption, good surface gloss, easy processing, excellent mechanical properties, bending fatigue resistance, good toughness, weather resistance, heat resistance, oil resistance, chemical stability and other properties. Therefore, When combined with the galvanized spiral air duct 1 used in the wet electrostatic precipitator, it has the characteristics of high inner surface smoothness, easy washing, high temperature resistance, no leakage points, strong electrical conductivity, strong corrosion resistance, and low cost. It makes the equipment run stably and reliably, without the need for special personnel management and daily maintenance, just regular inspections, no secondary pollution, and low energy consumption.

The invention also discloses a manufacturing method of the anode tube 5 for the wet electrostatic precipitator, the steps are as follows:

Step 1: The galvanized iron sheet is formed into a galvanized spiral air duct 1 through a pipe coiling machine;

Step 2: The conductive PP powder is added together at high temperature, so that the galvanized spiral air duct 1 maintains the original conductive function, and because the conductive PP reduces the resistance, the problems of corrosion resistance and leakage are increased, and the production process of this method is It is simple and low in cost, and the produced product can overcome the shortcomings of the conductive glass fiber reinforced plastic anode tube 5 and the shortcomings of the stainless steel anode tube 5 .

The present invention also discloses a wet electrostatic precipitator, comprising a wet electrostatic precipitator body 3, and the wet electrostatic precipitator body 3 includes an anode system 4, and the anode system 4 includes an anode tube 5, and the anode tubes 5 are arranged in a honeycomb shape , the anode tube 5 includes a galvanized spiral air duct 1, the inner layer of the galvanized spiral air duct 1 is provided with a conductive PP layer 2, the conductive PP layer 2 is carbon black conductive PP, and the wet electrostatic precipitator equipment is composed of It is composed of a cathode wire and an anode tube 5 precipitation electrode. Its working principle is that the flue gas passes through a high-voltage electric field, and the high-voltage electric field charges the soot and mist droplets in the flue gas to form charged ions. The charged ions move to the oppositely charged electrodes, and the charged ions reach the After the electrode is discharged, neutral dust and mist particles are formed, which are deposited on the electrode, agglomerate and fall to be removed. The wet electrostatic precipitator is integrally arranged at the rear end of the desulfurization tower. The flue gas enters from the bottom of the wet electrostatic precipitator body 3 and passes through After the fine particles and mist droplets are further removed in the electric field area, they are discharged from the outlet flue of the wet electrostatic precipitator body 3 through the civil chimney, and discharge up to the standard. The collected suspended liquid and flushing water are discharged into the desulfurization tower system. The anode tube 5 is improved on the dust collector, so that the device is suitable for various concentrations of dust-containing exhaust gas, and there are no consumables in the device, only ordinary galvanized spiral air duct 1 and conductive PP are required, and other high costs are not required. It consumes components, and the energy consumption of this equipment is 2/3 of the energy consumption of the original FRP anode tube 5 and stainless steel anode tube 5. It can be used normally without large energy consumption and dosing. The equipment also saves power and is corrosion-resistant. , low energy consumption, not afraid of acid and alkali corrosion in the exhaust gas.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present invention in further detail. It should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. A positive pole pipe for wet-type electrostatic precipitator, its characterized in that: the galvanized air pipe comprises a galvanized air pipe (1), wherein a conductive PP layer (2) is arranged on the inner layer of the galvanized air pipe (1).

2. The anode tube for a wet type electric precipitator according to claim 1, wherein: the conductive PP layer (2) is carbon black conductive PP.

3. The manufacturing method of the anode tube for the wet electric dust collector is characterized by comprising the following steps of:

the method comprises the following steps: forming the galvanized iron sheet into a galvanized spiral air pipe (1) by a pipe coiling machine;

step two: and (3) heating the conductive PP powder at a high temperature to reach more than 180 ℃ and performing electrostatic spraying on the inner wall of the galvanized spiral air pipe (1).

4. Wet-type electrostatic precipitator, including wet-type electrostatic precipitator body (3), wet-type electrostatic precipitator body (3) include anode system (4), its characterized in that: the anode system (4) comprises anode tubes (5), the anode tubes (5) are arranged in a honeycomb shape, the anode tubes (5) comprise galvanized spiral air pipes (1), and conductive PP layers (2) are arranged on the inner layers of the galvanized spiral air pipes (1).

5. The wet electric precipitator of claim 4, wherein: the conductive PP layer (2) is carbon black conductive PP.

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