Let s take a closer look at the difference between an electrostatic precipitator and a bag filter

A dust collection hood is set up in each ash place, and the dust-containing gas is transported to the dust removal device through the pipeline gas path, in which the dust is collected in the dust removal device after the gas-solid separation is carried out, and the clean gas is introduced into the main pipe or directly discharged into the whole set of equipment into the atmosphere, that is, the dust removal system, and the dust collector is an important part of the system. From the perspective of ventilation and dust removal, dust is all solid small particles that can float in the air for a long time, and is a dispersion system, called aerosol, in which air is the dispersed medium and solid particles are the dispersed phase. A dust collector is a device that separates these small solid particles from aerosols.

Bag filter and electrostatic precipitator are two completely different dust removal equipment, there are great differences in operation and management, the following is for some basic problems to make some comparisons: 1. Stop and start the bag filter: convenient, but it is necessary to do a good job in the protection of the filter bag when it is out of operation for a long time.

For electrostatic precipitators: convenient, can be shut down at any time. 2. Overhaul and maintenance of the bag dust collector:

3. Comparison of operation and management: bag filter: stable operation, simple control, no high-voltage equipment, good safety, less interference factors to dust removal efficiency, and stable emissions.

Because the filter bag is the core component of the bag filter and the heart of the bag filter, and it is relatively fragile and fragile, the equipment management requirements are strict. For electrostatic precipitators: there are many interference factors on the dust removal efficiency during operation, and the emission is unstable; The control is relatively complex, and the safety protection requirements of high-voltage equipment are high.

Since the electrostatic precipitator is a steel structure, it is not easy to be damaged, and the equipment management requirements are not very strict compared with the bag filter.

First, the subject is different.

1. Electrostatic precipitator: a precipitator that removes dust by electrostatic adsorption.

2. Bag dust collector: a dust collector that is absorbed by suction and stored in a bag.

Second, the principle is different.

1. Electrostatic precipitator: the flue gas is ionized by using a high-voltage electric field, and the dust charge in the gas flow is separated from the air flow under the action of the electric field. The negative electrode is made of metal wires of different cross-sectional shapes, called discharge electrodes.

2. Bag dust collector: the dusty flue gas passes through the filter material, and the dust particles are filtered down, and the filter material mainly relies on inertial collision to capture coarse-grained dust, and the fine-grained dust is mainly collected by diffusion and screening.

Third, the dust removal performance is different.

1. Electrostatic precipitator: The performance is affected by three factors: dust properties, equipment structure and flue gas velocity.

2. Bag dust collector: The advantages and disadvantages of dust removal effect are related to a variety of factors, but it mainly depends on the filter material, which is a cloth or felt woven from synthetic fiber, natural fiber or glass fiber. Sew the cloth or felt into a cylinder or flat dust filter bag as needed.

The difference between anti-static dust removal cloth bag and ordinary cloth bag is that "anti-static bag is a kind of anti-static bag that can effectively isolate the article from the external electrostatic field, prevent static electricity from being generated in the bag, and protect the item from static electricity hazards and anti-electromagnetic interference." Protecting electrically sensitive components from potential electrostatic damage, their unique physical structure creates an inductive effect to protect the contents of the bag from electrostatic fields. Usually the ordinary plastic bags used by everyone are generally made of insulating materials, and the bags containing sensitive devices are made of anti-static substances in design, generally called shielding bags, which can store materials that need to be relatively anti-static, while ordinary plastic bags will produce high static electricity, causing damage to the product and may break down the components.

Ordinary dust removal bags are traditional needle felt, woven (such as polyester) dust removal bags, etc. It works on the principle of so-called "depth filtration", that is, through the capture of filter media fibers, a "primary dust layer" (i.e. powder cake) is formed on the surface of the filter media, and then the subsequent dust is filtered through this layer of powder cake. Hopefully, this service will help you <>

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The difference between anti-static dust removal cloth bags and ordinary cloth bags.

Hello dear! I'm glad to answer for you, the working principle of the bag filter is different from that of the electrostatic bending dust collector. The difference between anti-static dust removal cloth bag and ordinary cloth bag is that "anti-static bag is a kind of anti-static bag that can effectively isolate the article from the external electrostatic field, prevent static electricity from being generated in the bag, and protect the item from static electricity hazards and anti-electromagnetic interference."

Protecting electrically sensitive components from potential electrostatic damage, their unique physical structure creates an inductive effect to protect the contents of the bag from electrostatic fields. Usually the ordinary plastic bags used by everyone are generally made of insulating materials, and the bags containing sensitive devices are made of anti-static substances in design, generally called shielding bags, which can store materials that need to be relatively anti-static, while ordinary Suicha plastic bags will produce high static electricity, cause damage to the product, and may break down the components. Ordinary dust removal cloth bags are traditional needle felt, woven (such as polyester) and celery dust bags.

It works on the principle of so-called "depth filtration", that is, through the capture of filter media fibers, a "primary dust layer" (i.e. powder cake) is formed on the surface of the filter media, and then the subsequent dust is filtered through this layer of powder cake. Hopefully, this service will help you <>

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Once again, I wish you all the best! Peace and joy.

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The differences are: 1. The bag filter can filter any dust, and the filtration efficiency is not affected by dust attributes. When the specific resistance of dust exceeds 10 10 ·cm (10 to the 10th power of 10), the performance of the electrostatic precipitator will decrease with the increase of specific resistance.

It is mainly due to the fact that the specific resistance is too high, and the reverse corona phenomenon is easy to form, which reduces the efficiency of electrostatic precipitator. 2. Electrostatic precipitation: the dust-containing gas is electrocentrically separated when it passes through the high-voltage electrostatic field, and the dust particles are combined with negative ions to carry negative electricity, and tend to be discharged on the surface of the anode and deposited; A dust collection method that ionizes a gas using an electrostatic field so that dust particles are electrically adsorbed onto the electrode.

As for bag dust removal: the dusty gas enters the ash hopper from the air inlet or enters the filter bag chamber through the open flange mouth, and the dusty gas is filtered through the filter bag into the clean gas chamber, and then through the exhaust port of the clean air chamber, and finally discharged by the fan. Let's talk about the advantages and disadvantages of each of them, the advantages of bag filters:

The dust removal efficiency is high, generally more than 99%, the structure is simple, the operation is convenient, under the same dust removal efficiency, the investment is lower than that of the electrostatic precipitator, the characteristics of the dust are not sensitive, and the gas volume treatment is large. The disadvantages are: when it is suitable for working in a high temperature state, the dust is easy to stick to the bag and plug the bag, which makes it difficult to clean the bag, the resistance increases, and the premature failure damage, so it cannot be used in the case of condensation.

The advantages of electrostatic precipitator are: it is suitable for particulate control, the efficiency can reach 98% to 99%, it can handle the gas at high temperature, it is suitable for large-scale projects, and the larger the air volume, the more obvious its effect. In the electrostatic precipitator, the energy separated from the air flow is not supplied to the air flow, but directly to the dust particles, so the resistance of the electrostatic precipitator is lower than that of other high-efficiency dust collectors.

The disadvantages are: huge equipment, large floor area, more steel consumption, large one-time investment, complex structure, high precision of manufacturing and installation, and certain requirements for the specific resistance of dust.

The full name of electrostatic precipitator: high-voltage electrostatic precipitator, which uses high-voltage electrostatic dust particles to move under the force of the power plant to remove dust.

Bag filter is a common environmental protection equipment that uses filter materials to filter dust.

Differences: The working principle, the principle of ash cleaning and dust control are different.

Electrostatic precipitators usually include two parts: the body and the power supply. The body part is a behemoth, which allows the treatment object to pass through and separate the suspended particles, and the body part of the electrostatic precipitator can be roughly divided into three parts: internal parts, support parts and auxiliary parts. The internals include four parts: anode system, anode beating, cathode system and cathode beating, which are the core components of the electrostatic precipitator and the heart of the electrostatic precipitator.

The supporting components include the shell, the top cover, the ash hopper, the ash hopper windshield, the inlet and outlet heads, the low beam, the walkway in the dust, the airflow distribution device, etc.

Auxiliary components include ladder platform, top bracket, electric heating of ash hopper, ash hopper level gauge, steel branch, etc.