CN211551639U - Secondary burning and purifying device for organic flue gas of industrial kiln - Google Patents

Abstract

The utility model discloses an industrial kiln organic flue gas second grade burns purifier, it has solved prior art and has had organic flue gas to burn incomplete influence environment scheduling problem, its characterized in that: add burning furnace above kiln (1), this burns burning furnace by the furnace body, the nozzle, water conservancy diversion center post (6), water conservancy diversion throat (10) and discharge fume pipe (13) and constitute, the long barrel of level passes through supporting seat (5) fixed mounting at kiln (1) top, the tip of perpendicular short barrel has set up organic flue gas entry (8), water conservancy diversion center post (6) are installed at the center of short barrel perpendicularly, and it is crisscross on its barrel that corresponds, along tangential direction installation big regulation ratio nozzle I (7), set up water conservancy diversion throat (10) and big regulation ratio nozzle II (11) in the long barrel middle part of level, the end links to each other with smoke exhaust fan through discharging fume pipe (13). Has the advantages of reasonable structure, simple operation, safe operation, energy conservation, environmental protection and the like, and can be widely applied to the purification treatment of organic flue gas of various kilns.

Description

Secondary burning and purifying device for organic flue gas of industrial kiln

Technical Field

The utility model belongs to industry thermal equipment field especially relates to an organic flue gas second grade of industrial kiln burns purifier.

Background

The organic flue gas of the existing industrial kiln is usually burnt in a low-temperature preheating zone of the kiln or a simple burning device is arranged outside the kiln, and the treated flue gas is directly discharged. However, the flue gas after incineration still can not reach the emission standard. Therefore, the market needs a method which can thoroughly solve the problems of environmental pollution and the like caused by incomplete incineration of organic flue gas and can achieve the purposes of energy conservation and emission reduction.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rational in infrastructure, easy operation, operation safety, energy-concerving and environment-protective industry kiln organic flue gas second grade for the market burns purifier.

The technical scheme of the utility model is that: the incinerator is additionally arranged above the kiln at the outlet of the exhaust gas pipeline and comprises an L-shaped cylindrical furnace body, a large-regulation-ratio burner, a flow guide central column, a flow guide necking and an exhaust pipe, wherein the regulation ratio of the large-regulation-ratio burner is 30-10: the device comprises a large-adjustment burner I and a large-adjustment-ratio burner II. The L-shaped cylindrical furnace body is made by filling refractory heat-insulating materials in a metal shell, a horizontally long cylinder body of the L-shaped cylindrical furnace body is fixedly arranged at the top of a furnace through a supporting seat, an organic flue gas inlet is arranged at the end part of a vertical short cylinder body and is connected with a furnace exhaust gas pipeline, a flow guide central column is vertically arranged at the center of the vertical short cylinder body, and a large-regulation-ratio burner I is arranged on the corresponding cylinder body in a staggered manner and in the tangential direction. The middle part of the horizontal long cylinder is provided with a flow guide necking, a large-adjustment-ratio burner II is installed on the cylinder behind the flow guide necking along the tangential direction, and the tail part of the cylinder is provided with a honeycomb ceramic partition wall for guiding smoke in the furnace to uniformly pass through the inner cavity. Explosion-proof/access doors are respectively arranged on front and rear horizontal cylinders provided with flow guide necking in the incinerator body, the explosion-proof/access doors are arranged at 45-degree included angles upwards in the cylinders, guard rails are arranged at corresponding positions of the cylinder shells, and the tail ends of the explosion-proof/access doors are connected with a smoke exhaust fan through a smoke exhaust pipe. The large-regulation-ratio burner has the advantages of no flameout due to a large mixing ratio, wide air-fuel ratio regulation range, capability of realizing a regulation ratio of 30-10: 1, is in a high-speed burner type, and is very suitable for medium-low temperature working conditions of the incinerator purification device.

The utility model has the advantages that: because the large-adjustment-ratio burners are staggered at the inlet and the middle part of the incinerator and are arranged along the tangential direction, smoke is forced to rotate at a high speed in the incinerator along the circumferential direction under the roll suction effect of the burners, the inlet flow guide central column can effectively prevent turbulent flow from being formed at the center of the section of the incinerator, the roll suction effect of the burners is exerted to the maximum, and the organic smoke is enabled to rotate at a high speed and be fully combusted; the backflow necking arranged in the inner cavity can guide the flue gas, improve the kinetic energy of the flue gas, create conditions for secondary incineration of the organic flue gas and enable the organic flue gas to pass through the incinerator for more than or equal to 2 seconds; the afterbody sets up honeycomb pottery partition wall, with the flue gas direction in the stove, evenly through the inner chamber, possesses the heat accumulation function, and it is extravagant to reduce a large amount of thermal evacuation.

The present invention will be further explained with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic top view of the present invention;

fig. 2 is a schematic cross-sectional structure view of the left-view flow guiding center post of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the flow guiding center pillar in a top view;

FIG. 4 is a schematic view of the cross-sectional structure of the flow-guiding necking of the present invention;

FIG. 5 is a schematic cross-sectional view of the tangential burner of the present invention;

FIG. 6 is a schematic view of the cross-sectional structure of the honeycomb ceramic partition wall of the present invention;

figure 7 is the utility model discloses explosion-proof/access door cross-sectional structure schematic diagram.

In the figure: the device comprises a kiln 1, a shell 2, a refractory thermal insulation material 3, an inner cavity 4, a flow guide central column 6, a high-regulation-ratio burner I7, an organic flue gas inlet 8, an explosion-proof/access door 9, a flow guide necking 10, a high-regulation-ratio burner II 11, a honeycomb ceramic partition wall 12, a smoke exhaust pipe 13, a rotating airflow 14 and a protective guard 15.

Detailed Description

As shown in the figure: the organic flue gas secondary incineration purification device of the industrial kiln comprises a kiln 1, a flue gas exhaust pipeline and the like, wherein an incinerator is additionally arranged above the kiln 1 at the outlet of the flue gas exhaust pipeline, the incinerator comprises an L-shaped cylindrical furnace body, a large-regulation-ratio burner, a flow guide central column 6, a flow guide necking 10 and a flue gas exhaust pipe 13, and the regulation ratio of the large-regulation-ratio burner is 30-10: the device comprises a large-regulation burner I7 and a large-regulation-ratio burner II 11. The L-shaped cylindrical furnace body is formed by filling refractory heat-insulating materials 3 in a metal shell 2, a horizontally long cylinder body of the L-shaped cylindrical furnace body is fixedly arranged at the top of a kiln 1 through a supporting seat, an organic flue gas inlet 8 is formed in the end part of a vertical short cylinder body and is connected with a kiln exhaust gas pipeline, a flow guide central column 6 is vertically arranged at the center of the vertical short cylinder body and is staggered on the corresponding cylinder body, a large-adjustment-ratio burner I7 is arranged in the tangential direction, a flow guide necking 10 is formed in the middle of the horizontally long cylinder body, a large-adjustment-ratio burner II 11 is arranged on the cylinder body behind the flow guide necking in the tangential direction, and the tail end of the L-shaped cylindrical furnace body is. The incinerator is an L-shaped cylinder body which is made by filling refractory heat-insulating materials 3 in a metal shell 2. Explosion-proof/access doors 9 are respectively arranged on front and rear horizontal cylinders of the incinerator body, which are provided with flow guide necking 10, the explosion-proof/access doors 9 are arranged at 45-degree included angles upwards in the cylinders, and guard rails 15 are arranged at corresponding positions of the cylinder shell 2. The tail part of the horizontal long cylinder body is provided with a honeycomb ceramic partition wall 12 for guiding the smoke in the furnace to uniformly pass through the inner cavity.

Implement the utility model discloses the time, as shown in fig. 1, fig. 2 to the organic flue gas that tunnel kiln flue gas treatment was supporting burns burning furnace as an example, and it includes tunnel kiln, burns equipment such as burning furnace, and tunnel kiln calcines the organic flue gas that the goods produced, through preheating zone side wall's hole of discharging fume then gathers at kiln top branch flue, from burning in 6 organic flue gas entry 8 of burning furnace bottom portion send into burning furnace, 8 horizontal central line contained angles 60 of every organic flue gas entry. The large-regulating-ratio burners are installed in the tangential direction of the cylindrical incinerator in a staggered mode, a strong roll sucking effect is formed around the inner nozzle of the incinerator body, meanwhile, under the flow guiding of the flow guiding central column 6, smoke rotates at a high speed along the circumferential direction of the flow guiding central column and is fully rotated, mixed and combusted with high-temperature flame generated by the combustor, and most of the smoke containing organic matters is completely combusted at the stage. Under the influence of burning furnace tip smoke exhausting fan, the flue gas continues to walk toward burning furnace afterbody, when burning furnace's water conservancy diversion throat 10, not only will be before along burning furnace inner wall walking organic matter flue gas that does not burn completely, water conservancy diversion to inner chamber center, because the flow area of water conservancy diversion throat 10 reduces moreover for the flue gas velocity of flow improves, and the flue gas obtains higher kinetic energy, and the flue gas fully disturbs when passing through water conservancy diversion throat 10, forms the wadding flow that is favorable to burning. The large adjusting ratio burner II 11 arranged along the tangential direction fully burns unburned organic flue gas again, and at the moment, organic matters in the flue gas are basically and completely burnt through secondary combustion. Then, small holes are uniformly distributed on the honeycomb ceramic partition wall 12 distributed in the inner cavity of the incinerator, and the flue gas after full combustion is uniformly and effectively guided to flow into the smoke exhaust pipe 13 from the inner cavity and is exhausted. Meanwhile, the anti-explosion/access door arranged on the incinerator body realizes the purpose of one hole for multiple purposes, if an extremely abnormal condition occurs, the concentration of combustible gas in the incinerator is too high, and when the movable anti-explosion door is exploded by naked fire, the movable anti-explosion door is firstly bounced open, so that the incinerator body is not damaged; meanwhile, the hole can also be used as a personnel channel required for overhauling when a fault occurs, so that the number of the holes formed in the furnace body is effectively reduced, and the heat loss is reduced.

In the technical scheme, the technologies of arranging the burners with large regulating ratio in the staggered tangential direction, arranging the flow guide central column, the flow guide necking and the honeycomb partition wall are adopted, so that the time for organic flue gas to pass through the furnace is more than or equal to 2 seconds, and the complete and harmless emission of incineration is realized.

Claims (4)

1. The utility model provides an organic flue gas second grade of industrial kiln burns purifier, it includes kiln (1) and exhaust pipe, its characterized in that: the incinerator is additionally arranged above the kiln (1) at the outlet of the smoke exhaust pipeline and comprises an L-shaped cylindrical furnace body, a large-adjustment-ratio burner, a flow guiding central column (6), a flow guiding necking (10) and a smoke exhaust pipe (13), wherein the adjustment ratio of the large-adjustment-ratio burner is 30-10: 1, including big regulation ratio nozzle I (7) and big regulation ratio nozzle II (11), burn the long barrel of level of burning furnace and pass through supporting seat fixed mounting at kiln (1) top, the tip of perpendicular short barrel has set up organic flue gas entry (8) and has linked to each other with kiln exhaust gas pipeline, the center at perpendicular short barrel is installed perpendicularly in water conservancy diversion center post (6), and it is crisscross on the barrel that it corresponds, along big regulation ratio nozzle I (7) of tangential direction installation, water conservancy diversion throat (10) have been set up at the long barrel middle part of level, and along the big regulation ratio nozzle II (11) of tangential direction installation on the barrel of this water conservancy diversion throat rear, the end links to each other with smoke exhaust fan through exhaust pipe (13).

2. The secondary incineration purification device for organic flue gas of industrial kilns as claimed in claim 1, is characterized in that: the L-shaped cylindrical furnace body is manufactured by filling a refractory heat-insulating material (3) in a metal shell (2).

3. The secondary incineration purification device for organic flue gas of industrial kilns as claimed in claim 1 or 2, characterized in that: explosion-proof/access doors (9) are respectively arranged on front and rear horizontal cylinders of the incinerator body, which are provided with flow guide necking ports (10), the explosion-proof/access doors (9) are arranged at 45-degree included angles upwards of the cylinders, and protective guards (15) are arranged at corresponding positions of the cylinder shell (2).

4. The secondary incineration purification device for organic flue gas of industrial kilns as claimed in claim 3, characterized in that: the tail part of the horizontal long cylinder body is provided with a honeycomb ceramic partition wall (12) for guiding the smoke in the furnace to uniformly pass through the inner cavity.

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