Air distribution device of gasification ash boiler

Abstract

The utility model discloses an ash gasification boiler air distribution device which comprises a plate body connected to the lower end of a hearth, first pipe bodies used for leading in cooling liquid are distributed in the plate body, a plurality of second pipe bodies used for leading in primary air are vertically arranged on the plate body in a penetrating mode, and the second pipe bodies are evenly arranged on the plate body. The upper end of the second pipe body is covered with a bell type hood; a first air inlet is formed in the lower end of the second pipe body, a first air outlet is transversely formed in the upper portion of the second pipe body, and the first air outlet is communicated with an outlet of the bell type hood. According to the utility model, primary air at the lower end of the plate body can uniformly enter the upper end of the plate body through the plurality of second pipe bodies and the plurality of bell-type air caps which are uniformly arranged on the plate body, so that gasification ash in a hearth can be conveniently fluidized; and meanwhile, after cooling liquid is introduced into the first pipe body, the plate body and the second pipe body installed on the plate body can be cooled, so that the heat damage of the plate body and the second pipe body is reduced, and the heat damage of the air distribution device of the gasification ash boiler is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gasification ash recycling, and in particular relates to an air distribution device for a gasification ash boiler. Background Art

[0002] At present, some factories often burn coal as fuel in industrial production to provide energy for industrial production. However, in the process of coal combustion, incomplete combustion will occur more or less and gasification ash will be produced.

[0003] After the gasified ash is loaded into the furnace, it is often necessary to uniformly supply primary air into the furnace at the lower end of the furnace to fluidize the gasified ash. However, when the furnace burns the gasified ash, the temperature inside is relatively high, so that the device at the lower end of the furnace used to uniformly distribute the primary air is easily damaged by heat. Utility Model Content

[0004] In order to overcome the defects of the prior art, the utility model provides an air distribution device for a gasification ash boiler, which can reduce heat damage.

[0005] The purpose of the utility model is achieved through the following technical solutions:

[0006] A gasification ash boiler air distribution device comprises a plate body connected to the lower end of a furnace, a first tube body for introducing cooling liquid is arranged in the plate body, a plurality of second tube bodies for introducing primary air are vertically penetrated through the plate body, the plurality of second tube bodies are evenly arranged on the plate body, and a bell-shaped hood is provided on the upper end of the second tube body; a first air inlet is provided at the lower end of the second tube body, a first air outlet is horizontally provided at the upper part of the second tube body, and the first air outlet is connected to the outlet of the bell-shaped hood.

[0007] The beneficial effects of adopting the above technical scheme are as follows: the primary air at the lower end of the plate body can enter the upper end of the plate body evenly through a number of second tube bodies and a number of bell-shaped wind hoods evenly arranged on the plate body, so as to facilitate the fluidization of the gasified ash in the furnace; at the same time, after the cooling liquid is passed into the first tube body, the plate body and the second tube body installed on the plate body can be cooled to reduce the heat damage to the plate body and the second tube body, thereby reducing the heat damage to the gasification ash boiler air distribution device.

[0008] In one embodiment, the upper side wall of the second tube body is provided with a plurality of first air outlet groups at different heights, and the first air outlet groups include a plurality of first air outlets uniformly arranged circumferentially on the second tube body; and a plurality of outlets are uniformly arranged circumferentially on the side wall of the bell-shaped hood.

[0009] The beneficial effect of adopting the above technical solution is that, by such arrangement, the primary air entering from the second tube body can be blown out evenly to the outside of the bell-shaped hood.

[0010] In one embodiment, a plurality of first mounting holes for connecting the slag dropping pipes are provided on the plate body, a plurality of third tube bodies vertically penetrating the plate body are provided on the outer side of the first mounting holes, and a directional wind hood is provided on the upper end of the third tube body; a second air inlet is provided at the lower end of the third tube body, and a second air outlet is horizontally provided at the upper part of the third tube body, and the second air outlet is connected to the outlet of the directional wind hood.

[0011] The beneficial effect of adopting the above technical solution is that the primary air can be blown out in a direction toward the first mounting hole for connecting the slag dropping pipe through the third pipe body and the directional wind cap in sequence, so as to effectively prevent coking and clogging.

[0012] In one embodiment, a plurality of first tubes are evenly arranged in the plate body along the length direction or the width direction, and the first mounting hole, the second tube and the third tube are arranged between two adjacent first tubes.

[0013] The beneficial effect of adopting the above technical solution is that the first installation hole, the second tube body and the third tube body are arranged in the gap between two adjacent first tube bodies, that is, the two adjacent first tube bodies can cool the second tube body, the third tube body and the slag dropping tube installed in the first installation hole.

[0014] In one embodiment, the inlet ends of the plurality of first tubes are connected to each other, and the outlet ends of the plurality of first tubes are connected to each other.

[0015] The beneficial effects of adopting the above technical solution are: the inlet ends of the plurality of first tubes are interconnected to facilitate unified supply; the outlet ends of the plurality of first tubes are interconnected to facilitate unified discharge.

[0016] In one embodiment, the upper side wall of the third tube body is provided with a plurality of second air outlet groups at different heights, and the second air outlet groups include a plurality of second air outlets.

[0017] In one embodiment, the outer sides of the bell-shaped hood and the directional hood are both provided with a wear-resistant layer.

[0018] The beneficial effect of adopting the above technical solution is that the outer sides of the bell-shaped hood and the directional hood are both provided with a wear-resistant layer, so as to help extend the service life of the bell-shaped hood and the directional hood.

[0019] In one embodiment, outlet directions of the plurality of directional hoods are all tangent to the outer edge of the first mounting hole.

[0020] In one embodiment, a plurality of second mounting holes for connecting the second tube body and a plurality of third mounting holes for connecting the third tube body are vertically arranged on the plate body, the aperture of the second mounting hole matches the outer diameter of the lower end of the second tube body, and the aperture of the third mounting hole matches the outer diameter of the lower end of the third tube body.

[0021] In one embodiment, the diameter of the first mounting hole matches the outer diameter of the slag dropping pipe.

[0022] The beneficial effects of the utility model are:

[0023] The primary air at the lower end of the plate body can enter the upper end of the plate body evenly through a number of second tube bodies and a number of bell-shaped wind hoods evenly arranged on the plate body, so as to facilitate the fluidization of the gasified ash in the furnace; at the same time, after the cooling liquid is passed into the first tube body, the plate body and the second tube body installed on the plate body can be cooled to reduce the heat damage to the plate body and the second tube body, thereby reducing the heat damage to the gasification ash boiler air distribution device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0025] in:

[0026] Figure 1 The structural schematic diagram of the utility model is shown;

[0027] Figure 2 The installation diagram of the utility model is shown;

[0028] Figure 3 The schematic diagram of the installation of the bell-shaped hood in the utility model is shown;

[0029] Figure 4 The schematic diagram of the installation of the directional hood in the utility model is shown;

[0030] In the drawings, like reference numerals are used for like parts. The drawings are not necessarily to scale.

[0031] Reference numerals:

[0032] 1-plate body, 2-first mounting hole, 3-first tube body, 4-directional wind hood, 5-bell-type wind hood, 6-second tube body, 7-furnace, 8-slag dropping pipe, 9-first air outlet, 10-third tube body, 11-second air outlet. DETAILED DESCRIPTION

[0033] The utility model will be further described below in conjunction with the accompanying drawings.

[0034] The utility model provides a gasification ash boiler air distribution device, such as Figure 1-3As shown, it includes a plate body 1 connected to the lower end of the furnace 7, a first tube body 3 for introducing cooling liquid is arranged inside the plate body 1, a plurality of second tube bodies 6 for introducing primary air are vertically penetrated on the plate body 1, a plurality of second tube bodies 6 are evenly arranged on the plate body 1, and a bell-shaped hood 5 is provided on the upper end of the second tube body 6; a first air inlet is provided at the lower end of the second tube body 6, a first air outlet 9 is horizontally provided on the upper part of the second tube body 6, and the first air outlet 9 is connected to the outlet of the bell-shaped hood 5.

[0035] It can be understood that the primary air at the lower end of the plate body 1 can enter the upper end of the plate body 1 evenly through a plurality of second tube bodies 6 and a plurality of bell-shaped wind hoods 5 evenly arranged on the plate body 1, so as to facilitate the fluidization of the gasified ash in the furnace 7; at the same time, after the cooling liquid is passed into the first tube body 3, the plate body 1 and the second tube body 6 installed on the plate body 1 can be cooled to reduce the heat damage of the plate body 1 and the second tube body 6, thereby reducing the heat damage of the gasification ash boiler air distribution device.

[0036] It should be noted that the first tube body 3 and the plate body 1 are both thickened; in addition, the wind speed of the primary air can be adjusted by adjusting the aperture of the first air outlet 9 and the outlet aperture of the bell-shaped hood 5 to adapt to the fuel characteristics of gasified ash with small particle size; and the bell-shaped hood 5 has the advantages of uniform air distribution, less ash leakage and not easy to wear.

[0037] In one embodiment, the upper side wall of the second tube body 6 is provided with a plurality of first air outlet groups at different heights, and the first air outlet groups include a plurality of first air outlets 9 uniformly arranged circumferentially on the second tube body 6; a plurality of outlets are uniformly arranged circumferentially on the side wall of the bell-shaped hood 5.

[0038] It is understandable that, with such an arrangement, the primary air entering from the second tube body 6 can be evenly blown out to the outside of the bell-shaped hood 5 .

[0039] In one embodiment, Figure 1 and Figure 4 As shown, three first mounting holes 2 for connecting the slag dropping pipe 8 are provided on the plate body 1, and a plurality of third tube bodies 10 vertically penetrating the plate body 1 are provided on the outer side of the first mounting hole 2, and a directional wind hood 4 is provided on the upper end of the third tube body 10; a second air inlet is provided at the lower end of the third tube body 10, and a second air outlet 11 is horizontally provided on the upper part of the third tube body 10, and the second air outlet 11 is connected to the outlet of the directional wind hood 4.

[0040] It is understandable that the primary air can be blown out in a direction toward the first mounting hole 2 for connecting the slag dropping pipe 8 through the third pipe body 10 and the directional wind cap 4 in sequence, so as to effectively prevent coking and clogging.

[0041] In one embodiment, a plurality of first tubes 3 are evenly arranged in the length direction or the width direction in the plate body 1 , and the first mounting hole 2 , the second tube 6 and the third tube 10 are arranged between two adjacent first tubes 3 .

[0042] It can be understood that the first mounting hole 2, the second tube body 6 and the third tube body 10 are arranged in the gap between two adjacent first tube bodies 3, that is, the two adjacent first tube bodies 3 can cool the second tube body 6, the third tube body 10 and the slag dropping pipe 8 installed in the first mounting hole 2.

[0043] In one embodiment, the inlet ends of the plurality of first tube bodies 3 are interconnected, and the outlet ends of the plurality of first tube bodies 3 are interconnected to facilitate unified supply and discharge.

[0044] In one embodiment, a plurality of second air outlet groups are respectively disposed on the upper side wall of the third tube body 10 at different heights, and the second air outlet groups include a plurality of second air outlets 11 .

[0045] In one embodiment, the outer sides of the bell-shaped hood 5 and the directional hood 4 are both provided with a wear-resistant layer.

[0046] It can be understood that the outer sides of the bell-shaped hood 5 and the directional hood 4 are both provided with a wear-resistant layer, so as to help extend the service life of the bell-shaped hood 5 and the directional hood 4.

[0047] It should be noted that the wear-resistant layer can be made of a wear-resistant material such as ZGA297HK; in addition, a wear-resistant and heat-resistant layer can be provided on the upper end of the plate body 1.

[0048] In one embodiment, outlet directions of the plurality of directional hoods 4 are all tangent to the outer edge of the first mounting hole 2 .

[0049] In one embodiment, a plurality of second mounting holes for connecting the second tube body 6 and a plurality of third mounting holes for connecting the third tube body 10 are vertically arranged on the plate body 1, and the aperture of the second mounting hole matches the outer diameter of the lower end of the second tube body 6, and the aperture of the third mounting hole matches the outer diameter of the lower end of the third tube body 10.

[0050] In one embodiment, the diameter of the first mounting hole 2 matches the outer diameter of the slag dropping pipe 8 .

[0051] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments, and other arrangements may be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the features described in the various dependent claims and herein may be combined in a manner different from that described in the original claims. It may also be understood that the features described in conjunction with the individual embodiments may be used in other described embodiments.

Claims

1. A gasification ash boiler air distribution device, characterized in that: The invention comprises a plate body (1) connected to the lower end of a furnace (7), wherein a first tube body (3) for introducing cooling liquid is arranged inside the plate body (1), and a plurality of second tube bodies (6) for introducing primary air are vertically penetrated on the plate body (1), and the plurality of second tube bodies (6) are evenly arranged on the plate body (1), and a bell-shaped hood (5) is provided at the upper end of the second tube body (6); a first air inlet is provided at the lower end of the second tube body (6), and a first air outlet (9) is transversely provided at the upper part of the second tube body (6), and the first air outlet (9) is connected to the outlet of the bell-shaped hood (5).

2. The air distribution device for a gasification ash boiler according to claim 1, characterized in that: The upper side wall of the second tube body (6) is provided with a plurality of first air outlet groups at different heights, the first air outlet groups comprising a plurality of first air outlets (9) uniformly arranged along the circumference on the second tube body (6); and a plurality of outlets are uniformly arranged along the circumference on the side wall of the bell-shaped hood (5).

3. The air distribution device for a gasification ash boiler according to claim 1, characterized in that: The plate body (1) is provided with a plurality of first mounting holes (2) for connecting the slag dropping pipe (8); the outer sides of the first mounting holes (2) are provided with a plurality of third tube bodies (10) vertically penetrating the plate body (1); the upper ends of the third tube bodies (10) are provided with a directional wind hood (4); the lower ends of the third tube bodies (10) are provided with a second air inlet; the upper part of the third tube body (10) is provided with a second air outlet (11) transversely; the second air outlet (11) is connected to the outlet of the directional wind hood (4).

4. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: A plurality of the first tube bodies (3) are evenly arranged in the length direction or the width direction in the plate body (1), and the first mounting hole (2), the second tube body (6) and the third tube body (10) are arranged between two adjacent first tube bodies (3).

5. The air distribution device for a gasification ash boiler according to claim 4, characterized in that: The inlet ends of a plurality of the first tube bodies (3) are interconnected, and the outlet ends of a plurality of the first tube bodies (3) are interconnected.

6. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: The upper side wall of the third tube body (10) is provided with a plurality of second air outlet groups at different heights, and the second air outlet groups include a plurality of second air outlets (11).

7. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: The outer sides of the bell-shaped hood (5) and the directional hood (4) are both provided with a wear-resistant layer.

8. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: The outlet directions of the plurality of directional hoods (4) are all tangent to the outer edge of the first mounting hole (2).

9. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: The plate body (1) is vertically provided with a plurality of second mounting holes for connecting the second tube body (6) and a plurality of third mounting holes for connecting the third tube body (10); the aperture of the second mounting hole matches the outer diameter of the lower end of the second tube body (6); and the aperture of the third mounting hole matches the outer diameter of the lower end of the third tube body (10).

10. The air distribution device for a gasification ash boiler according to claim 3, characterized in that: The hole diameter of the first mounting hole (2) matches the outer diameter of the slag dropping pipe (8).

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