CN2200482Y

CN2200482Y - Electrostatic precipitator

Info

Publication number: CN2200482Y
Application number: CN 94224759
Authority: CN
Inventors: 路广义
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-07-26
Filing date: 1994-07-26
Publication date: 1995-06-14
Anticipated expiration: 2004-07-26

Abstract

The utility model relates to an improved high-voltage electrostatic dust remover. Cathode coronal wires connected in series are suspended in the box body of a dust collector in parallel through insulating rods, and anode plates are suspended between every two rows of the cathode coronal wires. The anode plates and the inner partition board of the dust collector are formed into a smoke flow turning passage, the insulating rods are arranged in a centralized heating slot with an electric heating device, and the dust collector can be provided with a heat insulating layer or a water cooling interlayer. The high-voltage electrostatic dust remover has wide range of application, high dust removing efficiency and low running cost.

Description

Electrostatic precipitator

The utility model relates to industry environmental protection equipment, particularly a kind of electrostatic precipitator.

Existing electrostatic precipitator has horizontal and vertical branch, and flue gas bottom horizontal flow sheet or vertical flowing are through dust storage chamber.But because air-flow cross direction profiles in dust storage chamber is inhomogeneous, vertically there is not interregional concentration gradient poor, thereby efficiency of dust collection low emission dust content height, also to be equipped with conditioning Tower when particularly handling high temperature, dry flue gas, so that complex process, the operating cost height.

The purpose of this utility model provides a kind of efficiency of dust collection height, and is applied widely, the electrostatic precipitator that operating cost is lower.

For in the dust arrester casing of finishing the electrostatic precipitator that goal of the invention designs with the high-pressure electrostatic cathodic electricity hachure of insulating bar parallel suspend series connection, positive plate suspends between per two row's cathodic electricity hachures, the dividing plate that is provided with in positive plate and the dust arrester casing constitutes the baffling passage from gas approach to exhanst gas outlet jointly, the insulating bar of cathodic electricity hachure is suspended on by on the motor-driven rapping frame, and positive plate also links to each other with rapping apparatus.Because flue gas passes through from dust arrester in the baffling mode, dust rotates in air whirl, and flue gas and dust contact with high-pressure electrostatic the two poles of the earth and increase, and dust collecting effect obviously improves, and two electrodes all link to each other with rapping apparatus, and dust collection capacity is strong.

For the bigger flue gas of humidity, creepage for preventing dust storage chamber internal condensation and insulator, the concentrated heating tank of charged heater can be set at dust arrester casing top, the insulating bar that hangs the cathodic electricity hachure is placed concentrate heating tank, use rock wool etc. that heat-insulation layer is set on the casing of this external dust arrester.

For the flue gas of high temperature drying, the water-cooled interlayer can be set at the casing of dust arrester, the water-cooled interlayer has into cold water pipe and hot-water outlet pipe, to regulate temperature.

The utility model electrostatic precipitator is because structure has had improvement, pole span between its dust arrester inner high voltage negative electrode and the anode can increase to 300 to 400 millimeters, and voltage is elevated to 100,000 volts, makes than resistance drop to 150-250 ohm, to significantly reduce energy consumption, save operating cost.

Below in conjunction with accompanying drawing the utility model is described.

Fig. 1 is the electrostatic precipitator structural representation that concentrated heater and heat-insulation layer are arranged.

Fig. 2 is the structural representation that the electrostatic precipitator of water cooling plant is arranged.

As shown in Figure 1, the dust storage chamber of electrostatic precipitator is assembled by upper body 3, middle body 2 and lower body 1, the rapping frame 9 that is driven by motor 5 is arranged at 3 tops, upper body, cathodic electricity hachure 15 is through

last cathode frame

13 and 18 series connection of following cathode frame, and pass insulation board 12 be insulated excellent 11 and spring 10 be suspended on the rapping frame 9.Insulating bar 11 places in the concentrated heating tank 8 above the upper body 3, concentrates the heating tube 7 that electric heater unit 6 is arranged in the heating tank 8.High-voltage anode plate 16 in the dust storage chamber and dividing plate 20 constitute from gas approach 4 to exhanst gas outlet 14 flue gas baffling passage.Positive plate 16 also links to each other with rapping apparatus.The flue dust of collecting falls through flue dust whereabouts mouth 21.Dust storage chamber places on the support 19.

As shown in Figure 2, the dust storage chamber of electrostatic precipitator has water-cooled interlayer 25, and water-cooled interlayer 25 communicates with advancing cold water pipe 26, and hot water is drained from hot-water outlet pipe 24 through separator 23, and overflow pipe 22 and blowoff valve 27 are arranged on the separator 23.

Claims

1, a kind of electrostatic precipitator, in the dust arrester of band smoke entrance high-pressure electrostatic positive plate and cathodic electricity hachure are arranged, it is characterized in that the interior cathodic electricity hachure of said dust arrester casing with the series connection of insulating bar parallel suspend, positive plate suspends between per two row's cathodic electricity hachures, the dividing plate that is provided with in positive plate and the dust arrester casing constitutes the baffling passage from gas approach to exhanst gas outlet jointly, the insulating bar of cathodic electricity hachure is suspended on by on the motor-driven rapping frame, and positive plate also links to each other with rapping apparatus.

2, electrostatic precipitator according to claim 1 is characterized in that the concentrated heating tank of charged heater is arranged at said dust arrester casing top, and the insulating bar that hangs the cathodic electricity hachure places concentrates heating tank, and the casing of dust arrester has heat-insulation layer.

3, electrostatic precipitator according to claim 1 is characterized in that the casing of said dust arrester has the water-cooled interlayer, and the water-cooled interlayer has into cold water pipe and hot-water outlet pipe.

4,, it is characterized in that the pole span between said dust arrester inner high voltage negative electrode and the anode is 300 to 400 millimeters according to claim 1 or 2 or 3 described electrostatic precipitator.