CN218854564U - Hot air blowing system of electric dust remover of bottom blowing furnace - Google Patents

Abstract

The utility model discloses a hot-blast system that sweeps of end-blown converter electrostatic precipitator, including the inside a plurality of insulated rooms of electrostatic precipitator body, it has a plurality of insulating porcelain basins to support through a supporting beam in the insulated room, and insulating porcelain basin central authorities install negative pole porcelain axle, are provided with at the top of electrostatic precipitator body to be used for directly sweeping the device that sweeps of heating for insulating porcelain basin and negative pole porcelain axle, the utility model discloses a set up the insulating porcelain basin to the negative pole insulator at electrostatic precipitator body top, the device that sweeps of heating is directly swept to the negative pole porcelain, make hot-air directly sweep on the insulator with its surface gathering's smoke and dust and steam dry sweep clean, sweep more directly like this, more accurately, handle more thoroughly to the insulating porcelain basin, the emergence of accidents such as insulating inefficacy has been avoided, and the high temperature flue gas heat utilization of flue gas electrostatic precipitator entry high temperature flue gas through heat exchange assemblies to the inlet tube, realize that the heat energy of the electrostatic precipitator entry high temperature flue gas is recycled, realize that the enterprise reduces cost and increases.

Description

Hot air blowing system of electric dust remover of bottom blowing furnace

Technical Field

The utility model relates to an electrostatic precipitator sweeps the field, concretely relates to bottom blowing stove electrostatic precipitator hot-blast system that sweeps.

Background

In order to cool and treat high-temperature flue gas discharged by the nonferrous metal bottom-blowing electrothermal fusion reduction furnace, a bottom-blowing furnace waste heat boiler is arranged at a flue gas outlet of the furnace, and is used for recovering heat in the flue gas and reducing the temperature of the flue gas. The flue gas after heat exchange can enter into an electric dust collector for dust removal treatment after coming out of the bottom blowing furnace waste heat boiler, and the electric dust collector is equipment for separating dust suspended in the flue gas by using a high-voltage electric field. The electrostatic dust collector mainly comprises an anode system and a cathode system. Wherein the negative pole system contains the insulator, like insulating porcelain basin, negative pole porcelain axle etc. when electrostatic precipitator moves, the surface of insulator all contacts with the flue gas, and the dust in the flue gas can pile up on negative pole porcelain axle, and on the condensation such as steam in the flue gas attached to the insulator simultaneously, its surface insulation became invalid promptly, forms the surface electric leakage, and the secondary voltage that leads to electrostatic precipitator is lower, and dust collecting effect is extremely poor, influences dust collection efficiency, and the electric field is not electrified when serious, and the heat of electric leakage burns out insulator negative pole porcelain axle and breaks or splits.

In order to solve the problems, a side blowing mode is adopted for heating and blowing dust and water vapor on insulators (insulating ceramic basins and cathode ceramic shafts) in an insulating chamber, a side blowing hot air fan 15 (electric heating) is mainly adopted for supplying high-temperature hot air (shown in figure 2) in the side blowing mode, the high-temperature hot air is blown to the inside of the insulating chamber 2 through a side blowing pipe 16 and a plurality of blowing pipes 17, the high-temperature hot air is blown to the cathode ceramic shafts 5 downwards along the upper portion of each insulating ceramic basin 4 for heating and blowing, however, the loss of the blown hot air flow in the insulating chamber 2 is large, the insulators are not thoroughly heated and blown, accidents such as insulation failure occur, and the like are avoided, and therefore a hot air blowing system of a bottom blowing furnace electric precipitator is researched to solve the existing problems.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problems, the utility model provides a hot air blowing system of an electric dust remover of a bottom blowing furnace.

The utility model discloses a realize through following technical scheme:

the utility model provides a hot-blast system that sweeps of end-blown converter electrostatic precipitator, includes the inside a plurality of insulated rooms of electrostatic precipitator body, has a plurality of insulating porcelain basins through a supporting beam support in the insulated room, and insulating porcelain basin central authorities install negative pole porcelain axle, are provided with at the top of electrostatic precipitator body to be used for directly sweeping the device that sweeps the heating for insulating porcelain basin and negative pole porcelain axle, sweep the heat exchange assemblies of the flue gas inlet tube of device through the electrostatic precipitator body and carry out the air feed.

Further optionally, the device that sweeps includes the hot-blast house steward that sets up along electrostatic precipitator body top, and hot-blast house steward is connected with each and extends to insulating porcelain basin upper portion and just sweeps the pipe to the hot-blast of negative pole porcelain axle.

Further optionally, the hot air main pipe is connected with an auxiliary air supply device, the auxiliary air supply device comprises a fan and an electric heater, the fan and the electric heater are arranged at the top of the electric dust collector body and are connected in sequence, and an air outlet of the electric heater is fixedly connected with the hot air main pipe through a hot air pipe.

Further optionally, heat transfer assembly presss from both sides the cover including the heat transfer that sets up in the flue gas inlet pipe outside of electrostatic precipitator body, and heat transfer presss from both sides cover one side and is connected with the booster fan of pressurization air feed, and the opposite side that the heat transfer pressed from both sides the cover passes through the blast pipe and is connected with hot-blast house steward's port.

Further optionally, a heating cavity is formed between the heat exchange jacket and the flue gas inlet pipe, and heat exchange fins fixed on the flue gas inlet pipe are arranged in the heating cavity.

Further optionally, each hot air purging pipe is provided with a control valve.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the insulating porcelain basin to the negative pole insulator at electrostatic precipitator body top, the device that sweeps of heating is directly swept to the negative pole porcelain, make hot-air directly sweep on the insulator with the smoke and dust and the steam of its surface gathering dry and sweep totally, it is more direct to sweep like this, it is more accurate, to the insulating porcelain basin, the epaxial gathering smoke and dust of negative pole porcelain and steam are handled more thoroughly, the emergence of accidents such as insulation failure has been avoided, and utilize the high temperature flue gas heat of flue gas inlet tube through heat exchange assembly, realize the heat energy of electrostatic precipitator entry high temperature flue gas and recycle, realize the cost reduction of enterprise and improve efficiency.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a top view of the present application;

in the figure: the electric dust collector comprises an electric dust collector body 1, an insulating chamber 2, a supporting beam 3, an insulating ceramic basin 4, a cathode ceramic shaft 5, a flue gas inlet pipe 6, a fan 7, an electric heater 8, a hot air pipe 9, a hot air main pipe 10, a hot air blowing pipe 11, a heat exchange jacket 12, a booster fan 13, an air supply pipe 14, a side blowing air heater 15, a side blowing pipe 16 and a blowing pipe 17.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1 and 2, a hot air purging system for an electric dust remover of a bottom blowing furnace comprises a plurality of insulation chambers 2 inside an electric dust remover body 1, a plurality of insulation porcelain basins 4 are supported in the insulation chambers 2 through a support beam 3, a cathode porcelain shaft 5 is installed in the center of each insulation porcelain basin 4, a purging device used for directly purging the insulation porcelain basins 4 and the cathode porcelain shaft 5 for heating is arranged at the top of the electric dust remover body 1, and the purging device supplies air through a heat exchange assembly of a flue gas inlet pipe 6 of the electric dust remover body 1.

As shown in fig. 1, the blowing device comprises a hot air main pipe 10 arranged along the top of the electric dust collector body 1, and the hot air main pipe 10 is connected with hot air blowing pipes 11 which extend to the upper part of the insulating ceramic basin 4 and are opposite to the cathode ceramic shaft 5.

As shown in fig. 2, the hot air main pipe 10 is connected with an auxiliary air supply device, the auxiliary air supply device comprises a fan 7 and an electric heater 8 which are arranged at the top of the electric dust collector body 1 and are connected in sequence, and an air outlet of the electric heater 8 is fixedly connected with the hot air main pipe 10 through a hot air pipe 9.

As shown in fig. 1, the heat exchange assembly includes a heat exchange jacket 12 disposed outside the flue gas inlet pipe 6 of the electric dust collector body 1, one side of the heat exchange jacket 12 is connected with a pressurizing fan 13 for pressurizing and supplying air, and the other side of the heat exchange jacket 12 is connected with a port of the hot air main pipe 10 through an air supply pipe 14.

A heating cavity is formed between the heat exchange jacket 12 and the flue gas inlet pipe 6, heat exchange fins fixed on the flue gas inlet pipe 6 are arranged in the heating cavity, the heat exchange area of the heat exchange fins can be increased, and therefore the heat exchange efficiency is fully improved.

Each hot air purging pipe 11 is provided with a control valve.

The implementation principle of a hot air blowing system of an electric dust remover of a bottom blowing furnace is as follows:

when an insulator of an electric dust collector is heated and swept, a booster fan 13 of a heat exchange assembly is started, air with certain pressure is conveyed into a heating cavity formed by a flue gas inlet pipe 6 and a heat exchange jacket 12 by the booster fan 13, the air in the heating cavity is heated through radiation of high-temperature flue gas in the flue gas inlet pipe 6, the heated compressed air is conveyed into a hot air main pipe 10 through an air supply pipe 14 and is directly conveyed to the upper parts of insulating ceramic basins 4 in an insulating chamber 2 along hot air sweeping pipes 11, the hot air is directly swept on the insulating ceramic basins 4 and a cathode ceramic shaft 5, smoke and water vapor gathered on the insulating ceramic basins 4 and the cathode ceramic shaft 5 are dried and swept cleanly, and therefore sweeping is direct and accurate, energy loss of the hot air is small, the smoke and water vapor gathered on the insulating ceramic basins 4 and the cathode ceramic shaft 5 are treated more thoroughly, and accidents such as insulating failure are avoided;

the heat exchange assembly realizes the recycling of the heat energy of the high-temperature flue gas at the inlet of the electric dust collector by utilizing the heat of the high-temperature flue gas at the flue gas inlet pipe, and realizes the cost reduction and the efficiency improvement of enterprises; when the hot air heat that heat exchange assemblies provided was not enough during winter, can start supplementary air feeder, the compressed air that supplementary air feeder's fan 7 produced is through electric heater 8's heating, in sending hot-blast house steward 10 through hot-blast main 9, not only improves the temperature of the inside air of hot-blast house steward 10, but also can improve the pressure of air, makes the hot-air that blows at insulating porcelain basin 4, negative pole porcelain axle 5 in winter sweep the effect better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a hot-blast system that sweeps of end-blown converter electrostatic precipitator, includes inside a plurality of insulation chamber (2) of electrostatic precipitator body (1), has a plurality of insulating porcelain basins (4) through supporting a beam (3) support in insulation chamber (2), and insulating porcelain basin (4) central authorities install negative pole porcelain axle (5), its characterized in that: the top of electrostatic precipitator body (1) is provided with and is used for directly sweeping the device that sweeps that the heating was swept for insulating porcelain basin (4) and negative pole porcelain axle (5), sweep the heat exchange assembly of flue gas inlet tube (6) of device through electrostatic precipitator body (1) and carry out the air feed.

2. The hot air blowing system of the electric dust remover of the bottom blowing furnace as claimed in claim 1, which is characterized in that: the blowing device comprises a hot air main pipe (10) arranged along the top of the electric dust collector body (1), and the hot air main pipe (10) is connected with hot air blowing pipes (11) which extend to the upper part of the insulating porcelain basin (4) and are opposite to the cathode porcelain shaft (5).

3. The hot air blowing system of the electric dust remover of the bottom-blowing furnace as claimed in claim 2, characterized in that: hot-blast house steward (10) are connected with supplementary air feeder, supplementary air feeder is including setting up fan (7) and electric heater (8) at electrostatic precipitator body (1) top and connecting gradually, electric heater (8) gas outlet passes through hot-blast main (9) and is connected fixedly with hot-blast house steward (10).

4. The hot air blowing system of the electric dust remover of the bottom-blowing furnace as claimed in claim 1, characterized in that: the heat exchange assembly comprises a heat exchange jacket (12) arranged on the outer side of a flue gas inlet pipe (6) of the electric dust collector body (1), one side of the heat exchange jacket (12) is connected with a pressurizing fan (13) for pressurizing and supplying air, and the other side of the heat exchange jacket (12) is connected with a port of a hot air main pipe (10) through an air supply pipe (14).

5. The hot air blowing system of the electric dust remover of the bottom-blowing furnace as claimed in claim 4, characterized in that: a heating cavity is formed between the heat exchange jacket (12) and the flue gas inlet pipe (6), and heat exchange fins fixed on the flue gas inlet pipe (6) are arranged in the heating cavity.

6. The hot air blowing system of the electric dust remover of the bottom blowing furnace as claimed in claim 2, characterized in that: and each hot air blowing pipe (11) is provided with a control valve.

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