CN210153828U

CN210153828U - Harmful gas burning and cracking processor

Info

Publication number: CN210153828U
Application number: CN201920730491.3U
Authority: CN
Inventors: 吴剑; 邓祥太; 吴政漾
Original assignee: Chengdu Gao Xin Welding & Cutting Technology Co Ltd
Current assignee: Chengdu Gao Xin Welding & Cutting Technology Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2020-03-17
Anticipated expiration: 2029-05-21

Abstract

The utility model provides a harmful gas burns pyrolysis treatment ware relates to environmental protection, incineration disposal and poisonous and harmful gas processing field, the treater includes power arc generator, plasma arc generator and the burning cracker that from the top down set gradually, plasma arc generator middle part is provided with arc post passageway and working anode, the working anode winding the outside of arc post passageway, ion arc generator still includes shunt, ion gas import, positive pole water inlet and anodal water electric end. The technical problems that the processor in the prior art is too high in use cost, short in operation time and limited in use field are solved.

Description

Harmful gas burning and cracking processor

Technical Field

The utility model relates to an environmental protection, incineration disposal and poisonous and harmful gas processing field especially relate to a harmful gas burns pyrolysis treatment ware.

Background

At present, the domestic treatment mode for toxic and harmful gases is as follows: the toxic and harmful gases are treated by a special high-temperature furnace or a plurality of complex chemical reaction furnaces, such as: harmful and toxic gas generated by environment-friendly incineration, toxic and harmful waste gas generated by industrial production and the like, but the mode has low efficiency and high cost and is not suitable for popularization in a large number of industries such as rural incineration treatment, catering industry and the like.

The known foreign treatment methods for toxic and harmful gases are as follows: exhaust gas treatment using plasma temperature has been implemented in korea, and treatment using a hybrid heating method in which plasma-cracked water is re-combusted in germany has been implemented. According to the information of the relevant incineration data: in China, air plasma arc is adopted for carrying out garbage incineration test, but the power is generally low (about 5-10KW), the plasma flame flow is short, the working time is short, the service lives of an electrode and a nozzle are too short, the electrode and the nozzle are required to be replaced generally for about 1 hour, the cost is high, and the working efficiency is low. The principle of the nuclear waste incineration treatment by adopting pure nitrogen plasma arc is that high-temperature plasma arc is directly formed between an electrode and an anode, the service life of the electrode cannot be prolonged, the electrode and a nozzle need to be replaced after working for about several hours, the required nitrogen flow is extremely large, normal working can be met only by huge nitrogen making equipment, the use cost is too high, the operation time is short, and the nuclear waste incineration treatment is limited to a small amount at present.

How to utilize air plasma arc flame flow to carry out high-efficient environmental protection schizolysis to multiple poisonous and harmful gas in special schizolysis room, how to adopt high-power air plasma arc, need not to change the equipment that the electrode can realize 1600 hours continuous operation (about half a year operating time), the trade is still blank temporarily. How to adopt high-power air plasma arc, realize low-cost, high-efficiency, continuous to the device of poisonous and harmful gas environmental protection schizolysis, at present still domestic blank.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a harmful gas incineration and cracking processor for solving the above-mentioned problems in the prior art.

In order to achieve the above objects and other related objects, the utility model provides a harmful gas burns pyrolysis treater, the treater includes power arc generator, plasma arc generator and the burning cracker that from the top down set gradually, plasma arc generator middle part is provided with arc post passageway and working anode, the working anode winding the outside of arc post passageway, ion arc generator still includes shunt, ionic gas import, positive pole water inlet and anodal water electric end.

In an embodiment of the present invention, the arc column channel is in a circular truncated cone shape, the aperture of the upper end surface of the arc column channel is smaller than the aperture of the lower end surface of the arc column channel, and the diverter is located on the upper end surface of the circular truncated cone and is communicated with the ion gas inlet.

In an embodiment of the present invention, the working anode and the ion gas inlet, the anode water inlet and the anode water and electricity end are welded as a whole.

In an embodiment of the present invention, the power arc generator includes an insulating housing, the insulating housing is provided therein with a water cooling circuit component, a cathode electrode rod, a nozzle, a cathode chuck and a cathode gas-electric end, the cathode gas-electric end is communicated with the cathode chuck and the cathode electrode rod, the cathode electrode rod is located on a central shaft of the insulating housing, and an upper end portion of the cathode electrode rod extends out of the insulating housing.

In an embodiment of the utility model, the water cooling circuit part is connected in order by nozzle water electricity seat, nozzle water electricity seat return water, insulating tube, negative pole water inlet, negative pole seat return water and constitutes, the negative pole seat return water passes through negative pole chuck and insulating connecting piece respectively with negative pole electrode bar and nozzle water electricity seat fixed connection, the upper end of negative pole seat return water is provided with the negative pole and adjusts the cap.

In an embodiment of the present invention, the cathode water return base further includes a water pipe, and the water pipe extends out of the insulating housing and is connected to the anode water inlet.

In an embodiment of the utility model, the nozzle is located the below of nozzle water and electricity seat to communicate with nozzle water and electricity seat, be provided with the temperature resistant insulating part around the nozzle, the temperature resistant insulating part with insulating dustcoat is connected.

In an embodiment of the present invention, the combustion cracking device includes a combustion chamber, a waste gas inlet port and a gas outlet, the waste gas inlet port and the gas outlet are respectively disposed at the upper end and the bottom end of the combustion chamber, and a refractory material layer, an inner shell, a heat insulating layer and an outer shell are sequentially disposed outside the combustion chamber.

In an embodiment of the present invention, the gas outlet is provided with a temperature sensor.

In an embodiment of the present invention, the plasma arc generator is fixed to the top of the combustion cracking apparatus through a connecting bolt.

As described above, the utility model discloses following beneficial effect has:

1. the utility model discloses in let in different gas and can obtain different heat sources toward the work positive pole to do not influence the life of work positive pole, negative pole and nozzle: when air is introduced, an air plasma arc flame flow heat source can be realized, which is the heat source with the lowest cost; when steam is introduced, water can be cracked into hydrogen and oxygen, and the hydrogen and the oxygen are randomly combusted to form a mixed heat source mainly comprising plasma arcs, wherein the two heat sources are most environment-friendly heat sources; other gases, such as nitrogen, argon-nitrogen mixed gas and the like can be introduced into the working anode, so that the heat source requirements of other industries can be met.

2. The utility model discloses a high-power plasma arc generator can produce a large amount of plasma arc heat sources, owing to be provided with the arc post passageway of round platform form, adopts the produced plasma flame stream length of the same electric current, power to increase more than 30% than the produced flame stream of ordinary generator. Because of the utility model discloses can use a large amount of air as work ion gas, only use micro protective gas, protective gas obtains in the air directly through 'system mechanism of qi' with low costs, consequently can promote to various harmful gas of production such as various waste incineration, combustion cracking industrial production and chemical production.

3. The utility model adopts a cathode electrode bar with low current density in the power arc generator, and a small amount of protective gas is adopted between the cathode electrode bar and the nozzle, and a thick-diameter and low-temperature flexible power arc is generated between the cathode and the working anode; the low-temperature flexible power electric arc is in a relatively thick aperture area of the plasma generator, the rotating gas generates high-speed ionization through a strong electric field and high temperature, the expanded ion airflow forcibly compresses the flexible power electric arc, and the power electric arc is compressed and compressed on a central channel of an arc column of the plasma generator, so that the high-temperature ion arc is far away from a cathode electrode bar, a nozzle and a working anode, the service lives of the cathode electrode bar, the working anode and the nozzle are greatly prolonged, electrode supplement setting can be performed through a cathode electrode adjusting cap during working, the continuous working can be performed for more than 1600 hours, the working efficiency is improved, and the use cost is further reduced.

Drawings

Fig. 1 is a schematic view of the overall structure disclosed in the embodiment of the present invention.

Fig. 2 shows a schematic structural diagram of a power arc generator and a plasma arc generator disclosed in an embodiment of the present invention.

Fig. 3 is a schematic structural view of a combustion cracking apparatus disclosed in an embodiment of the present invention.

Description of the element reference numerals

1-a power arc generator; 2-a plasma arc generator; 3-a combustion cracking unit; 4-arc column channel; 5-a flow divider; 6-an ionic gas inlet; 7-anode water inlet; 8-anode hydroelectric end; 9-an insulating housing; 10-a cathode electrode bar; 11-a nozzle; 12-a cathode chuck; 13-cathode gas-electric end; 14-nozzle hydroelectric seat; 15-nozzle seat water return; 16-an insulating tube; 17-cathode water inlet; 18-cathode water return base; 19-an insulating connector; 20-a cathode adjusting cap; 21-a water pipe; 22-temperature resistant insulation; 23-a combustion chamber; 24-an exhaust gas inlet port; 25-gas outlet; 26-a layer of refractory material; 27-an inner shell; 28-insulating layer; 29-an outer shell; 30-a temperature sensor; 31-connecting bolts; 32-a working anode; 33-a flame flow diffusion zone; 34-gas heated expansion zone; 35-arc compression zone.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Referring to fig. 1 and 2, the utility model provides a harmful gas burns schizolysis treater, the treater includes power arc generator 1, plasma arc generator 2 and the burning schizolysis device 3 that from the top down set gradually, 2 middle parts of plasma arc generator are provided with arc post passageway 4 and working anode 32, working anode 32 twines the outside of arc post passageway 4, ion arc generator 2 still includes shunt 5, ionic gas import 6, positive pole water inlet 7 and anodal water electric end 8.

Specifically, the arc column channel 4 is in a circular truncated cone shape, the aperture of the upper end face of the arc column channel is smaller than that of the lower end face of the arc column channel, and the flow divider 5 is located on the upper end face of the circular truncated cone and is communicated with the ion gas inlet 6.

The arc column channel is sequentially provided with a flame flow diffusion area 33, a gas heating expansion area 34 and an electric arc compression area 35 from bottom to top.

Specifically, the working anode 32 is welded with the ion gas inlet 6, the anode water inlet 7 and the anode hydroelectric end 8 into a whole.

And the ion gas is introduced into the splitter 5 from the ion gas inlet 6, generates high-speed rotating gas flow after passing through the splitter 5, forcibly compresses the flexible electric arc to form a plasma electric arc through an electric arc compression region 35 of the plasma generator 2, and enters the combustion device after sequentially passing through a gas heating expansion region 34 and a flame flow diffusion region 33.

Based on the above embodiments, the power arc generator 1 includes the insulating housing 9, the insulating housing 9 is provided therein with a water cooling loop component, a cathode electrode rod 10, a nozzle 11, a cathode chuck 12 and a cathode gas-electric end 13, the cathode gas-electric end 13 is communicated with the cathode chuck 12 and the cathode electrode rod 10, the cathode electrode rod 10 is located on the central axis of the insulating housing 9, and the upper end portion of the cathode electrode rod extends out of the insulating housing 9.

And the cathode gas electric end 13 is connected with the cathode of the power supply and the protective gas input end.

Specifically, the water cooling loop component is formed by sequentially connecting a nozzle hydroelectric seat 14, a nozzle hydroelectric seat backwater 15, an insulating pipe 16, a cathode water inlet 17 and a cathode backwater seat 18, the cathode backwater seat 18 is fixedly connected with a cathode electrode bar 10 and the nozzle hydroelectric seat 14 through a cathode chuck 12 and an insulating connecting piece 19, and the cathode adjusting cap (20) is arranged at the upper end of the cathode chuck (12).

In this embodiment, the cathode adjusting cap 20 is used for positioning the cathode chuck 12, and simultaneously, positioning and adjusting the cathode electrode bar (10), and during the operation, the cathode electrode bar (10) can also be positioned and adjusted.

Specifically, the cathode water return base 18 further comprises a water pipe 21, and the water pipe 21 extends out of the insulating outer cover 9 to be connected with the anode water inlet 7.

In this embodiment, the nozzle hydroelectric seat 14 is connected to the positive arc end of the power supply and the input end of the cooling water, and the water cooling loop is: the cooling water at the cooling output end of the water tank enters from the nozzle hydroelectric seat 14, sequentially passes through the nozzle seat backwater 15, the insulating pipe 16, the cathode water inlet 17 and the cathode backwater seat 18, is connected to the anode water inlet 7 from the water pipe 21 of the cathode backwater seat 18, and finally flows out from the anode hydroelectric end 8 and returns to the cooling water tank, so that a cooling process is realized.

Specifically, the present embodiment further includes a shielding gas circuit, wherein the shielding gas is introduced into the cathode chuck 12 from the cathode gas end 13, then introduced into the cathode electrode bar 10 and the nozzle 11 from the gas distribution groove of the cathode chuck 12, and finally flows to the working anode 32 from the middle hole of the nozzle 11.

Specifically, the nozzle 11 is located below the nozzle hydroelectric seat 14 and is communicated with the nozzle hydroelectric seat 14, a temperature-resistant insulating member 22 is arranged around the nozzle 11, and the temperature-resistant insulating member 22 is connected with the insulating housing 9.

Referring to fig. 3, based on the above embodiment, the combustion cracking apparatus 3 includes a combustion chamber 23, an exhaust gas inlet 24 and a gas outlet 25, the exhaust gas inlet 24 and the gas outlet 25 are respectively disposed at the upper end and the bottom end of the combustion chamber 23, and a refractory material layer 26, an inner shell 27, an insulating layer 28 and an outer shell 29 are sequentially disposed outside the combustion chamber 23.

Specifically, a temperature sensor 30 is further provided at the gas outlet 25.

Based on the above embodiment, the plasma arc generator 2 is fixed on the top of the combustion cracking device 3 by the connecting bolt 31.

In this embodiment, the waste gas inlet 24 is disposed at the upper end of the combustion chamber 23, so as to ensure that the harmful gas can be heated in the combustion chamber 23 for more than 1.5 seconds and at a temperature of 850 ℃ to 1000 ℃, so as to achieve sufficient combustion and achieve the purpose of environmental protection. If the combustion cracking is insufficient and the temperature when the gas is discharged from the gas outlet is lower than 850 ℃, the temperature sensor 30 can automatically adjust and increase the working current of the external power supply, so that the outlet temperature of the combustion device meets the requirement of sufficient cracking.

The using method comprises the following steps: firstly, opening a cooling water tank to form a cooling water loop, connecting pre-communicated protective gas to form a protective gas loop, adding an arc striking high-frequency signal of an external power supply between a cathode gas electric end 13 and an arc striking nozzle water electric seat 14, namely directly between a cathode electrode bar 10 and a nozzle 11, when the external power supply high-frequency signal starts to work, directly puncturing a gap between the cathode electrode bar 10 and the nozzle 11 by a high-frequency high-voltage oscillation signal to generate arc striking current between the cathode electrode bar 10 and the nozzle 11, directly connecting a loop of the cathode electrode bar 10 and a working anode 32 by flame current of the arc striking current to immediately form arc turning working current, once the working anode 32 passes through the current, sensing an output signal by a sensor in the power supply, immediately cutting off an arc striking loop current signal of the nozzle water electric seat 14,

secondly, opening an ion gas valve to generate rotary gas flow to form an ion gas loop and generate rotary gas flow to start to compress the large-diameter low-temperature flexible electric arc;

the third working current rises slowly for about 1 second to reach a set value, and enters a normal plasma arc working state, at the moment, the nozzle seat 14 only conducts cooling water inlet, and at the moment, the working current forms a loop between the cathode electrode bar 10 and the working anode 32. The arc from cathode electrode bar 10 to above the compression zone 35 is a relatively low temperature flexible arc of large diameter and low density; the high-speed ionization of the rotating airflow generated by the current divider 5 occurs between the cathode electrode 10 and the working anode 32 due to the action of a strong electric field and high temperature, the first ionized gas enhances the conductivity of the arc column, the length of the arc column is increased rapidly, the second ionized gas undergoes accelerated expansion, the large-current flexible arc is directly forced to be compressed in the arc compression area 35, and a high-density plasma arc gathered at the center of the arc column channel 4 is formed. The ionized gas and the unionized gas will be further heated in the heated expansion region 34 to a temperature of about 7000-. Because among the plasma arc generator, the arc post passageway 4 at middle part is round platform column structure, can be right plasma arc flame flows and enlarges and thicken, cool down, directly gets into sealed combustion chamber 23 after flame flows the temperature and burns the schizolysis to harmful gas after reducing to half about, and the waste gas after burning the schizolysis passes through gas outlet 25 and discharges after the special heat utilization in later stage, spray cooling, dust absorption etc. and can externally discharge.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a harmful gas burns schizolysis treater which characterized in that: the treater includes power arc generator (1), plasma arc generator (2) and burning cracker (3) that from the top down set gradually, plasma arc generator (2) middle part is provided with arc post passageway (4) and working anode (32), working anode (32) winding the outside of arc post passageway (4), ion arc generator (2) still include shunt (5), ion gas inlet (6), positive pole water inlet (7) and positive pole water electric end (8).

2. The harmful gas incineration pyrolysis processor of claim 1, characterized in that: the arc column channel (4) is in a circular truncated cone shape, the aperture of the upper end face of the arc column channel is smaller than that of the lower end face of the arc column channel, and the flow divider (5) is located on the upper end face of the circular truncated cone and communicated with the ion gas inlet (6).

3. The harmful gas incineration pyrolysis processor of claim 1, characterized in that: the working anode (32) is welded with the ion gas inlet (6), the anode water inlet (7) and the anode hydroelectric end (8) into a whole.

4. The harmful gas incineration pyrolysis processor of claim 1, characterized in that: the power arc generator (1) comprises an insulating outer cover (9), a water cooling loop component, a cathode electrode rod (10), a nozzle (11), a cathode chuck (12) and a cathode gas-electricity end (13) are arranged inside the insulating outer cover (9), the cathode gas-electricity end (13) is communicated with the cathode chuck (12) and the cathode electrode rod (10), the cathode electrode rod (10) is located on a central shaft of the insulating outer cover (9), and the upper end of the cathode electrode rod extends out of the insulating outer cover (9).

5. The harmful gas incineration pyrolysis processor of claim 4, characterized in that: the water cooling loop part is formed by sequentially connecting a nozzle hydroelectric seat (14), nozzle seat backwater (15), an insulating pipe (16), a cathode water inlet (17) and a cathode backwater seat (18), the cathode backwater seat (18) is respectively fixedly connected with a cathode electrode bar (10) and the nozzle hydroelectric seat (14) through a cathode chuck (12) and an insulating connecting piece (19), and a cathode adjusting cap (20) is arranged at the upper end of the cathode chuck (12).

6. The harmful gas incineration pyrolysis processor of claim 5, characterized in that: the cathode water return seat (18) further comprises a water pipe (21), and the water pipe (21) extends out of the insulating outer cover (9) to be connected with the anode water inlet (7).

7. The harmful gas incineration pyrolysis processor of claim 4, characterized in that: the nozzle (11) is located below the nozzle hydroelectric seat (14) and communicated with the nozzle hydroelectric seat (14), a temperature-resistant insulating piece (22) is arranged around the nozzle (11), and the temperature-resistant insulating piece (22) is connected with the insulating outer cover (9).

8. The harmful gas incineration pyrolysis processor of claim 1, characterized in that: the combustion cracking device (3) comprises a combustion chamber (23), a waste gas inlet (24) and a gas outlet (25), wherein the waste gas inlet (24) and the gas outlet (25) are respectively arranged at the upper end part and the bottom end part of the combustion chamber (23), and a refractory material layer (26), an inner shell (27), a heat insulation layer (28) and an outer shell (29) are sequentially arranged outside the combustion chamber (23).

9. The harmful gas incineration pyrolysis processor of claim 8, characterized in that: and a temperature sensor (30) is also arranged at the gas outlet (25).

10. The harmful gas incineration pyrolysis processor of claim 1, characterized in that: the plasma arc generator (2) is fixed at the top of the combustion cracking device (3) through a connecting bolt (31).