Electric dust collector

Abstract

The utility model relates to an electric dust collector. An air inlet and an air outlet are respectively formed in two sides of a shell; the high-frequency pulse power supply and the three-phase power supply are arranged at the top of the shell, a plurality of groups of anode plates and cathode wires which are arranged at intervals are arranged in the shell, and one or more groups of anode plates and cathode wires close to the air outlet are controlled by the high-frequency pulse power supply to form an electric field; the rest groups of anode plates and cathode wires are controlled by the three-phase power supply to form an electric field, and an ash bucket electric heater and a bin wall vibrator are arranged on the outer wall of the ash bucket. According to the utility model, two power supplies are adopted for supplying power, and the anode plate and the cathode wire close to the air outlet are connected with the high-frequency pulse power supply, so that dust with high specific resistance can be charged in an electric field formed by the high-frequency pulse power supply and is adsorbed and collected, and the collection of the dust with high specific resistance is realized; the dust concentration in the gas treated by the electric dust collector is reduced, and the dust collecting effect of the electric dust collector is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric dust collector, specifically relates to an electric dust collector. BACKGROUND

[0002] In the field of industrial production and environmental protection, as a kind of high-efficiency dust removal equipment, electric dust collector is widely used in electric power, metallurgy, chemical industry and other industries, for capturing and removing solid dust in dust-containing gas. Traditional electric dust collector usually adopts single power supply mode, such as three-phase power supply, dust particles in dust-containing gas are charged when passing through high-voltage electric field, and then are adsorbed to anode plate or cathode wire of electric dust collector under the action of electric field force, finally fall into hopper for collection and treatment. However, with the increasingly stringent industrial emission standards and the diversification of dust properties, the traditional electric dust collector has low dust removal efficiency and poor dust removal effect under certain specific working conditions, especially when dealing with gas containing high specific resistance dust, high specific resistance dust is difficult to charge and collect, and dust content is difficult to reduce after gas is treated by electric dust collector, so it is difficult to meet the emission standard. In addition, dust is easy to cake or accumulate on the inner wall of hopper after entering the hopper, and cannot be discharged in time, so the hopper needs to be cleaned regularly. SUMMARY

[0003] In view of the problems of high specific resistance dust being difficult to charge and collect and dust being easy to cake and accumulate on the inner wall of hopper in the prior art, the utility model provides an electric dust collector, which realizes charging and collection of high specific resistance dust by adding high-frequency pulse power supply, and ensures smooth discharge of dust in hopper by setting hopper electric heater and bin wall vibrator.

[0004] To achieve the above object, the technical scheme of the utility model is as follows:

[0005] An electric dust collector, comprising a high-frequency pulse power supply, a three-phase power supply, a cathode rapping device, an anode rapping device, a hopper electric heater, a bin wall vibrator, a shell and a hopper; the two sides of the shell are respectively provided with an air inlet and an air outlet; the high-frequency pulse power supply and the three-phase power supply are arranged at the top of the shell, a plurality of groups of anode plates and cathode wires are arranged in the shell and arranged alternately, one or more groups of anode plates and cathode wires close to the air outlet form an electric field controlled by the high-frequency pulse power supply, and the remaining groups of anode plates and cathode wires form an electric field controlled by the three-phase power supply; the cathode rapping device is arranged in the middle of the shell, and the anode rapping device is arranged at the lower part of the shell; the bottom of the shell is connected with the hopper, and the outer wall of the hopper is provided with a hopper electric heater and a bin wall vibrator.

[0006] Further, the outer wall of the hopper is provided with four groups of hopper electric heaters.

[0007] Further, the outer wall of the hopper is provided with two groups of bin wall vibrators.

[0008] Further, the cathode rapping device and the anode rapping device each include a rapping hammer, a rapping anvil, a rapping rod and a driving motor.

[0009] Further, the air inlet and the air outlet are each provided with a valve.

[0010] Further, a safety interlocking device is further included.

[0011] Compared with the prior art, the electric dust collector has the beneficial effects that:

[0012] The electric dust collector is powered by two power sources, the anode plate and the cathode wire close to the air outlet are connected with a high-frequency pulse power source, so that the dust with high specific resistance can be charged in the electric field formed by the high-frequency pulse power source and be adsorbed and collected, the collection of the dust with high specific resistance is realized, the dust concentration in the gas treated by the electric dust collector is reduced, and the dust capture effect of the electric dust collector is improved; the ash bucket electric heater and the bin wall vibrator are arranged on the outer wall of the ash bucket, so that the dust is prevented from caking and accumulating in the ash bucket, the dust is ensured to be smoothly discharged, and the maintenance cost and downtime of the equipment are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] The embodiments of the present application will be further described below with reference to the accompanying drawings, in which:

[0014] Figure 1 Fig. 1 shows a structural schematic diagram of an embodiment of an electric dust collector;

[0015] BRIEF DESCRIPTION OF DRAWINGS: 1-high-frequency pulse power source, 2-three-phase power source, 3-cathode rapping device, 4-anode rapping device, 5-ash bucket electric heater, 6-bin wall vibrator, 7-housing, 8-ash bucket. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the accompanying drawings and through specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0017] Reference is made to the accompanying drawings Figure 1The utility model provides an electric dust collector, including high frequency pulse power supply 1, three phase power supply 2, cathode rapping device 3, anode rapping device 4, ash bucket electric heater 5, bin wall vibrator 6, shell 7 and ash bucket 8, the both sides of shell 7 are equipped with air inlet and air outlet respectively, high frequency pulse power supply 1 and three phase power supply 2 are arranged at the top of shell 7, and the inside of shell 7 is equipped with multiple groups of anode plate and cathode wire and is arranged alternately, and one or more groups of anode plate and cathode wire close to the air outlet are controlled to form electric field by high frequency pulse power supply 1, and the rest groups of anode plate and cathode wire are controlled to form electric field by three phase power supply 2, and shell 7 middle part is equipped with cathode rapping device 3, and shell 7 lower part is equipped with anode rapping device 4, and the bottom of shell 7 is connected with ash bucket 8, and ash bucket 8 outer wall is equipped with ash bucket electric heater 5 and bin wall vibrator 6.

[0018] In an embodiment of the utility model, ash bucket 8 outer wall is equipped with four groups of ash bucket electric heater 5, prevents dust agglomeration and sticks in ash bucket 8 inner wall, ensures that dust is discharged smoothly.

[0019] In an embodiment of the utility model, ash bucket 8 outer wall is equipped with two groups of bin wall vibrator 6, promotes the flow of dust in ash bucket 8, prevents blockage.

[0020] In an embodiment of the utility model, cathode rapping device 3 and anode rapping device 4 all include rapping hammer, vibration anvil, rapping rod and drive motor.

[0021] In an embodiment of the utility model, air inlet and air outlet all are equipped with valve, are used for controlling air flow rate, optimization dust trapping efficiency.

[0022] In an embodiment of the utility model, still include safety interlock when the device appears failure or maintenance, safety interlock can automatically cut off power and lock relevant operation, ensures the safety of operator.

[0023] When using, the gas containing dust is first passed through the electric field formed by three phase power supply, and a large number of dust with low specific resistance is charged in the electric field formed by three phase power supply, and the charged dust moves to the anode plate or cathode wire under the action of electric field force, and is finally adsorbed on the surface of anode plate or cathode wire, and the dust with high specific resistance, such as high lead-zinc arsenic dust, is difficult to charge in the electric field formed by three phase power supply, and is carried to the electric field formed by high frequency pulse power supply by air flow, and the dust with high specific resistance is charged in the electric field formed by high frequency pulse power supply, and is adsorbed on the surface of anode plate or cathode wire.

[0024] The utility model provides a kind of electric dust collector, the device is powered using two power supplies, the anode plate and cathode line close to air outlet are connected with high-frequency pulse power supply, so that the dust of high specific resistance can be charged in the electric field formed by high-frequency pulse power supply, and is absorbed and collected, the collection of high specific resistance dust is realized, the dust concentration in gas after being treated by electric dust collector is reduced, and the dust capture effect of electric dust collector is improved;By setting ash bucket electric heater and bin wall vibrator on the outer wall of ash bucket, the dust is prevented from caking and accumulating in ash bucket, dust is ensured to be discharged smoothly, and the maintenance cost and downtime of equipment are reduced.

[0025] Some exemplary embodiments of the utility model are described above, and it can be understood that the above-mentioned embodiments are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model. The features in these embodiments can be recombined in a suitable manner, and the schemes obtained thereby are still within the protection scope required by the utility model. Based on the above-mentioned embodiments, all other embodiments obtained by those skilled in the art without creative labor, i.e. all modifications, equivalent replacements and improvements, etc. made within the spirit and principles of the present application, are also within the protection scope required by the utility model.

Claims

1. An electrostatic precipitator, characterized in that, The device includes a high-frequency pulse power supply (1), a three-phase power supply (2), a cathode rapping device (3), an anode rapping device (4), an ash hopper electric heater (5), a bin wall vibrator (6), a shell (7), and an ash hopper (8). The shell (7) has an air inlet and an air outlet on its two sides. The high-frequency pulse power supply (1) and the three-phase power supply (2) are located on the top of the shell (7). The shell (7) has multiple sets of anode plates and cathode wires arranged in alternating phases. One or more sets of anode plates and cathode wires near the air outlet are controlled by the high-frequency pulse power supply (1) to form an electric field, while the remaining sets of anode plates and cathode wires are controlled by the three-phase power supply (2) to form an electric field. The shell (7) has the cathode rapping device (3) in the middle and the shell (7) has the anode rapping device (4) at the bottom. The bottom of the shell (7) is connected to the ash hopper (8), and the outer wall of the ash hopper (8) has the ash hopper electric heater (5) and the bin wall vibrator (6).

2. The electrostatic precipitator according to claim 1, characterized in that, The outer wall of the ash hopper (8) is provided with four sets of ash hopper electric heaters (5).

3. The electrostatic precipitator according to claim 1, characterized in that, The outer wall of the ash hopper (8) is equipped with two sets of hopper wall vibrators (6).

4. The electrostatic precipitator according to claim 1, characterized in that, Both the cathode rapping device (3) and the anode rapping device (4) include a rapping hammer, a vibrating anvil, a rapping rod, and a drive motor.

5. An electrostatic precipitator according to claim 1, characterized in that, Both the air inlet and outlet are equipped with valves.

6. An electrostatic precipitator according to claim 1, characterized in that, It also includes safety interlock devices.

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