Longitudinal and horizontal plate line combined type electrostatic field dust-removing equipment

Abstract

The invention relates to longitudinal and horizontal plate line combined type electrostatic field dust-removing equipment comprising a shell, an inlet smoke box, an outlet smoke box, an ash bucket, discharge electrodes, dust collection electrodes and a shaking device, wherein the ash bucket is arranged below the shell; the discharge electrodes and the dust collection electrodes are arranged in the shell at intervals; the dust collection electrodes are distributed in a longitudinally and horizontally combining manner so as to form a rectangular array structure; the discharge electrodes are distributed in a radial shape and arranged in the center of each rectangular array unit of the dust collection electrodes; each dust collection electrode comprises two parts; the intermediate shapes of longitudinally arranged dust collection electrode sections are straight, and both sides naturally transit to form an arc-shaped wind preventing structure; the intermediate shapes of horizontally arranged dust collection electrode sections are straight, and both sides naturally transit to form the arc-shaped wind preventing structure, therefore the dust collection electrodes with the section shapes can enhance the critical sparking voltage, strengthen the electrostatic fields and prevent the collected dust particles from secondarily flying through the arc-shaped wind preventing structures.

Description

technical field [0001] The invention relates to an electrostatic dust removal device, in particular to a combined vertical and horizontal plate line electrostatic field dust removal device. Background technique [0002] Electrostatic precipitator is widely used in thermal power, cement, chemical industry, metallurgy, papermaking and other industries. It is often used for gas purification or recovery of useful particles. The principle is to use high-voltage electric field to ionize the flue gas and charge the dust in the airflow Under the action of an electric field, it is separated and gathered from the airflow. The negative electrode is made of metal wires with different cross-sectional shapes, called discharge electrodes, and the positive electrode is made of metal plates with different geometric shapes, called dust collection electrodes. Electrostatic precipitators are divided into structural types Standpipe type, horizontal plate type, tube pole type, cylindrical type, e...

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Problems solved by technology

[0002] Electrostatic precipitator is widely used in thermal power, cement, chemical industry, metallurgy, papermaking and other industries. It is often used for gas purification or recovery of useful particles. The principle is to use high-voltage electric field to ionize the flue gas and charge the dust in the airflow. Under the action of an electric field, it is separated and gathered from the airflow. The negative electrode is made of metal wires with different cross-sectional shapes, which are called discharge electrodes. Vertical pipe type, horizontal plate type, tube pole type, cylindrical type, etc., composed of shell, inlet smoke box, outlet smoke box, ash hopper, discharge electrode, dust collection electrode, vibration device, corresponding to the parameters of the flue gas to be processed The conventional model can meet the general 50mg / Nm 3 emission requirements, but for special conditions or 30mg / Nm 3 The above discharge requirements are difficult to meet, and it is necessary to further improve the dust removal efficiency. At present, the design method of increasing the number of discharge electrodes and dust collection electrodes is adopted. Although the dust removal efficiency has been improved, the floor area and cost have also increased sharply, and at the same time, the power consumption Increased, high operating costs

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