Price of industrial smoke removal and purification equipment

Copper melting dust removal and smoke purification equipment

The equipment that separates dust from flue gas is called a dust collector or dust removal device. The performance of a dust collector is expressed by the amount of gas that can be processed, the resistance loss of gas passing through the dust collector, and the dust removal efficiency. At the same time, the price, operation and maintenance costs, service life, and difficulty of operation and management of dust collectors are also important factors to consider their performance.

The scrubbing dust remover includes water bath dust remover, foam dust remover, Venturi tube dust remover, water film dust remover, etc. Fabric filter: Definition: The technology of using filter bags for filtering and dust removal.

Material of filter bag: natural fiber, chemically synthesized fiber, glass fiber, metal fiber. The unit is cubic meters per hour (m3/h) or standard cubic meters per hour (Nm3/h). The reasonable selection of air volume for processing is often determined based on process conditions and experience.

2. Usage temperature

(1) For bag filters, their operating temperature depends on two factors,oneIt is the temperature that the filter material can withstand, and secondly, the gas temperature must be above the dew point temperature. As the inlet concentration increases, the rate of ash accumulation on the same filtration area increases, leading to an increase in pressure loss. As a result, it is necessary to increase the frequency of ash cleaning.

(2) After the boiler flue gas is exchanged in two stages through the economizer and heat pipe exchanger, the flue gas temperature is controlled between 140 ℃ and 170 ℃. 1- Air inlet; 2- Motor; 3- Spiral conveyor; 4- Pool dust outlet; 5- Airflow diversion plate; 6- Dust collector; 7- Dust filtering chamber; 8- Dust filter bag; 9- Flower board; 10- Air outlet. In order to ensure the normal operation of the filter bag, a bypass flue and valve are also set up for boiler maintenance, baking, and ignition. The use of fuel containing a lot of oil smoke has a temporary impact on the filter bag. Dust removal relies on manual vibration or self weight shedding. And the filter bag is reliably grounded during installation, which can effectively avoid the possibility of aluminum powder explosion caused by static electricity.

Copper melting dust removal and smoke purification equipmentMain advantages:

(1) Excellent craftsmanship and technical specifications that meet environmental and manufacturer requirements.

(2) Low investment, low operating costs, and good economic viability.

(3) Good anti scaling and anti blocking performance, stable operation, and high safety performance.

(4) Good anti-corrosion performance and long service life.

(5) Good operational performance and convenient operation and management.

(6) The fan has no water phenomenon.

High concentration dusty flue gas

The dust concentration is high, and the dust collector box requires pressure resistance. Therefore, a bag filter with a circular cylinder tangential inlet can be selected to achieve the pre separation effect of cyclone dust removal for high concentration flue gas; The use of gravity dust collectors, pre charged electrostatic precipitators, and cyclone dust collectors requires pre dust removal of the dust collectors; A protective plate is installed at the inlet of the dust collector, which is used as a pre dust collector in the middle of the box, and also serves as a dynamic settling chamber for dust and a diversion chamber for inlet gas to prevent coarse dust from washing the filter bag and distribute the airflow reasonably; The spacing between the filter bags of the bag filter is widened and equipped with a continuous dust cleaning device.

Adhesive dusty smoke

The strong adhesiveness of smoke can cause severe wall adhesion, which can affect the smoke exhaust effect and service life of the system, and in severe cases, damage the induced draft fan motor or cause fire and combustion in the flue. Bag filter can treat adhesive dust through adsorption, that is, adding an appropriate amount of porous powder into the system pipeline, using the powder to adsorb adhesive dust, and understanding and analyzing its other characteristics such as hydrophobicity and oleophilicity. Bag filter is used as the dust removal device, and a reasonable purification system is designed for it.

Explosive dusty smoke

Bag filter is used in many industrial fields, but for some explosive dust such as magnesium powder, coal powder, starch, tobacco, wood powder, plastics, etc. Improper handling in powder state can cause explosions. Explosive dust can explode if it meets the following three conditions simultaneously: the dust removal space is sealed and the temperature reaches the ignition point of explosive dust; The concentration of the explosive mixture has reached the explosive limit; There is sufficient air and oxidant. When dealing with explosive dust, attention should be paid to taking explosion-proof measures, and the dust collector should be installed outdoors as much as possible. If installed indoors, the explosion-proof pipe should be directly connected to the outside and the length should be less than 3m. The explosion-proof device should be determined based on the properties of the dust, and an external filter type should be used; The inner wall of the dust collector's ash hopper should be smooth, and a gas lock ash discharge device should be installed at the bottom. It should be noted that the ash discharge device should operate synchronously with the dust collector to prevent dust accumulation in the dust collector's ash hopper.

Corrosive dusty gas

The main cause of corrosion is that the flue gas contains acidic and alkaline components, which change the dew point with the concentration of these chemical gases. If the dust collector is started or stopped below the dew point, SO2 in the exhaust gas will form H2SO4 when it comes into contact with water, which will cause the fiber of the bag filter bag of the bag filter to harden, deform, lose strength and be damaged. In addition to acid and alkali corrosion, the corrosion of bag filter bags by organic solvents cannot be ignored. Therefore, it is necessary to choose suitable filter media based on the characteristics of corrosive substances produced in flue gas production. In addition, when purchasing filter bags, do not be tempted by cheap prices, but buy high-quality and guaranteed filter bags.

Grinding dust containing gas

The abrasiveness of dust on filter media is called the abrasiveness of dust, which is related to the shape, size, hardness, dust concentration, and airflow velocity carrying the dust. Dust with high hardness, such as alumina, silica, coke powder, and sintered ore powder, is prone to wear on filter cloth and bag filters. When dealing with such dusty gases, a dust collector should be set up first to remove large particles of dust before entering the bag filter, reducing the number of dust particles; Strictly control the inlet flow rate of the filter bag, and add wear-resistant materials to the easily worn parts of the airflow inlet; Select wear-resistant high-quality filter bags for dust removal.