CN216591743U - Heat accumulating type oxidation furnace flue gas waste heat recovery device - Google Patents

Abstract

The utility model discloses a regenerative oxidation furnace flue gas waste heat recovery device in the technical field of oxidation furnace waste heat recovery, which comprises an oxidation furnace, wherein the upper part of the inner wall of the left side end of the oxidation furnace is fixedly connected with a gas pipe a in a flange connection mode, the other end of the gas pipe a is fixedly connected with a combustion box, the inner wall of the right side end of the combustion box is connected with a waste heat recovery box through a pipeline, and the top end part of the waste heat recovery box is fixedly provided with a hot water box in a rivet connection mode.

Description

A regenerative oxidation furnace flue gas waste heat recovery device

technical field

The utility model relates to the technical field of recovery and utilization of waste heat of an oxidation furnace, in particular to a waste heat recovery device of flue gas of a regenerative oxidation furnace.

Background technique

RTO (Regenerative Oxidizer) utilizes the principle that organic waste gas is decomposed into water and carbon dioxide at high temperature to treat organic waste gas. RTO consists of a furnace and two or more regenerative beds. Exhaust gas purification mainly refers to the treatment of industrial waste gas such as dust particles, smoke and dust, odorous gases, and toxic and harmful gases generated in industrial places. Common exhaust gas purification includes factory soot and exhaust gas purification, workshop dust waste

Gas purification, organic waste gas purification, waste gas odor purification, acid-base waste gas purification, chemical waste gas purification, etc.

After the existing regenerative oxidation furnace burns and oxidizes the exhaust gas, due to the insufficient combustion, the generated flue gas still contains a small amount of harmful gases. It is transported to the purification device to purify the flue gas again, and then the flue gas is discharged after purification. However, the flue gas discharged from the oxidation furnace will contain a lot of heat. If it is directly transported to the purification device, it will not only consume resources, Cooling the gas will also lead to waste of heat contained in the flue gas, which is not in line with the concept of energy saving currently implemented in my country.

Existing, so it is necessary to develop a regenerative oxidation furnace flue gas waste heat recovery device.

Utility model content

The purpose of this utility model is to provide a regenerative oxidation furnace flue gas waste heat recovery device, so as to solve the problem that the flue gas discharged from the oxidation furnace will contain a large amount of heat in the above-mentioned background technology. It takes resources to cool down the flue gas, and it will also lead to waste of heat contained in the flue gas, which is not in line with the concept of energy conservation currently implemented in my country.

In order to achieve the above purpose, the utility model provides the following technical solutions: a regenerative oxidation furnace flue gas waste heat recovery device, including an oxidation furnace, the upper part of the inner wall of the left end of the oxidation furnace is fixedly connected with a gas transmission pipe by means of flange connection a, the other end of the gas transmission pipe a is fixedly connected with a combustion box, the inner wall of the right end of the combustion box is connected with a waste heat recovery box through a pipeline, and the top of the waste heat recovery box is fixed with a hot water tank by means of rivets.

Preferably, the side end wall of the combustion box is fixedly connected with an insulating refractory layer by means of bonding, the inner end wall of the insulating refractory layer is fixedly connected with a vortex burner, and the other end of the vortex burner is connected to the vortex burner through a pipeline. Gas tank connection.

Preferably, the heat insulating and refractory layer is specifically made of a mixture of fused corundum, sintered alumina and industrial alumina.

Preferably, a partition plate is fixedly connected to the bottom of the inner end wall of the waste heat recovery box, a mesh placement plate is arranged on the upper end of the partition plate, and a filter assembly is fixedly connected to the bottom end of the partition plate.

Preferably, the filter assembly includes an activated carbon plate, the right end of the activated carbon plate is provided with a sulfide adsorption plate, the right end of the sulfide adsorption plate is provided with an activated carbon plate, the activated carbon plate, the sulfide adsorption plate Both the outer end wall of the smoke adsorption plate and the outer end wall of the waste heat recovery box are slidably connected with the inner end wall of the waste heat recovery box.

Preferably, an air storage pipe is arranged between the upper end of the partition and the bottom end of the mesh placement plate, the two ends of the air storage pipe are fixedly connected to the inner walls of both sides of the waste heat recovery box, and the top end of the air storage pipe is fixed A nozzle is connected, a connecting pipe is fixed at the right end of the outer wall of the bottom end of the gas storage pipe, the bottom end of the connecting pipe is connected with the right end of the outer wall of the bottom end of the partition plate, and the connecting pipe is arranged on the right side of the smoke adsorption plate Ends.

Preferably, sliding seats are provided on both ends of the mesh placement plate in a sliding manner, and the other ends of the sliding seats are fixedly connected to the inner walls of both sides of the waste heat recovery box.

Preferably, a gas transmission pipe b is fixedly connected to the top of the waste heat recovery tank, a serpentine heat exchange pipe is arranged in the hot water tank, and the bottom end of the serpentine heat exchange pipe is connected to the upper end of the gas transmission pipe b, so An exhaust pipe is fixedly connected to the upper end of the serpentine heat exchange pipe, and the exhaust pipe is fixedly connected to the outer wall of the top of the hot water tank.

Compared with the prior art, the beneficial effects of the present utility model are:

In the utility model, the flue gas generated by the combustion of the oxidation furnace will enter the combustion box through the gas transmission pipe a, and the vortex burner provided can burn the flue gas again to make the combustion more sufficient, and the flue gas after combustion will pass through The pipe enters the filter assembly, the activated carbon plate and the smoke adsorption plate can adsorb the mixed smoke particles in the flue gas, and the sulfide adsorption plate can filter the sulfide contained in the flue gas, and the filtered flue gas It will enter the gas storage pipe through the connecting pipe, and the installed gas storage pipe can spray the flue gas through the nozzle to dry the items on the mesh placement plate, and then the flue gas rising to the top of the waste heat recovery box will pass through the gas transmission pipe b Entering into the serpentine heat exchange tube, the flue gas can heat the water in the hot water tank through the serpentine heat exchange tube. It can be seen from the above method that the present utility model can purify the flue gas through the filter assembly and the combustion box. The waste heat recovery tank and the hot water tank can efficiently utilize the heat contained in the flue gas, thereby preventing the waste of heat in the flue gas.

Description of drawings

Fig. 1 is the external structure schematic diagram of the front view direction of the utility model;

Fig. 2 is the cross-sectional structural schematic diagram of the front view direction of the combustion box in the utility model;

Fig. 3 is the cross-sectional structural schematic diagram of the waste heat recovery box in the front view direction of the utility model;

Fig. 4 is the three-dimensional structure schematic diagram of the nozzle in the utility model;

FIG. 5 is a schematic cross-sectional structural diagram of the hot water tank in the front view of the utility model.

In the figure: 100, oxidation furnace; 110, gas transmission pipe a; 200, combustion box; 210, heat insulation refractory layer; 220, vortex burner; 300, waste heat recovery box; 310, filter assembly; 311, activated carbon plate; 312, Sulfide adsorption plate; 313, soot adsorption plate; 320, partition plate; 330, gas storage pipe; 331, nozzle; 332, connecting pipe; 340, mesh placement plate; 341, sliding seat; 350, gas pipe b; 400, Hot water tank; 410, serpentine heat exchange tube; 420, exhaust pipe.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

The utility model provides the following technical solutions: a regenerative oxidation furnace flue gas waste heat recovery device, which can effectively recycle the heat in the flue gas generated by the oxidation furnace in the process of use, so as to avoid the waste of heat, Please refer to FIGS. 1-5 , including the oxidation furnace 100 . The upper part of the inner wall of the left end of the oxidation furnace 100 is fixedly connected with a gas transmission pipe a110 by means of flange connection. The inner wall of the end is connected with a waste heat recovery box 300 through a pipe, and a hot water tank 400 is fixed at the top of the waste heat recovery box 300 by means of rivets. The toxic gas contained in the gas is fully combusted, and the waste heat recovery box 300 installed can purify the flue gas, and after purification, the heat can be used for the first time. The hot water tank 400 is installed to recycle the heat contained in the flue gas Use to avoid waste of heat;

Further, the side end wall of the combustion box 200 is fixedly connected with an insulating refractory layer 210 by means of bonding, the inner end wall of the insulating refractory layer 210 is fixedly connected with a vortex burner 220, and the other end of the vortex burner 220 is connected to the gas through a pipeline. The tank is connected, and the heat-insulating refractory layer 210 is made of a mixture of fused corundum, sintered alumina and industrial alumina. The swirl burner 220 is to burn the flue gas delivered by the gas pipeline a110 to make it burn more fully;

Further, a partition plate 320 is fixedly connected to the bottom of the inner end wall of the waste heat recovery box 300, the upper end of the partition plate 320 is provided with a mesh placement plate 340, and the bottom end of the partition plate 320 is fixedly connected with a filter assembly 310, and the filter assembly 310 includes an activated carbon plate. 311, the right end of the activated carbon plate 311 is provided with a sulfide adsorption plate 312, and the right end of the sulfide adsorption plate 312 is provided with an activated carbon plate 311. It is slidably connected to the inner end wall of the waste heat recovery box 300 , and a gas storage pipe 330 is arranged between the upper end of the partition plate 320 and the bottom end of the mesh placement plate 340 , and the ends on both sides of the gas storage pipe 330 are fixed to the inner walls of the waste heat recovery box 300 on both sides. The top end of the gas storage pipe 330 is fixedly connected with a nozzle 331, the right end of the outer wall of the bottom end of the gas storage pipe 330 is fixed with a connecting pipe 332, and the bottom end of the connecting pipe 332 is connected with the right end of the bottom outer wall of the partition plate 320, and the connecting pipe 332 is arranged on the right end of the fume adsorption plate 313, the two ends of the mesh placement plate 340 are provided with sliding seats 341 by sliding connection, and the other end of the sliding seat 341 is fixedly connected with the inner walls of the waste heat recovery box 300 on both sides. The partition plate 320 is provided to separate the filter assembly 310 from the mesh placement plate 340, the activated carbon plate 311 and the soot adsorption plate 313 are provided to adsorb the soot particles mixed in the flue gas, and the sulfide adsorption plate is provided. The plate 312 is used to filter the sulfide contained in the flue gas, and the connecting pipe 332 is provided to transport the purified flue gas into the gas storage pipe 330. The provided gas storage pipe 330 can spray the flue gas through the nozzle 331, The mesh placement plate 340 can be used to place items that need to be dried, and the items are dried by the heat contained in the flue gas. The sliding seat 341 is set to enable the mesh placement plate 340 to slide, so as to facilitate the user. When picking and placing the items, the gas pipe b350 is set to transport the flue gas into the hot water tank 400;

Further, the top part of the waste heat recovery box 300 is fixedly connected with the gas transmission pipe b350, the hot water tank 400 is provided with a serpentine heat exchange pipe 410, and the bottom end of the serpentine heat exchange pipe 410 is connected with the upper end of the gas transmission pipe b350, An exhaust pipe 420 is fixedly connected to the upper end of the heat pipe 410, and the exhaust pipe 420 is fixedly connected to the outer wall of the top of the hot water tank 400. Specifically, the serpentine heat exchange pipe 410 is arranged to use the residual heat in the flue gas to heat the hot water. The water in the box 400 is heated, which is convenient for the user to use hot water, and can also reuse the heat in the flue gas.

Working principle: First, after connecting each device, open the box door (not marked in the figure) on the waste heat recovery box 300, pull out the mesh placement plate 340, and place the items to be dried on the mesh placement plate 340, Then, the mesh placement plate 340 is pushed into the waste heat recovery box 300. After completion, the flue gas generated by the combustion of the oxidation furnace 100 will enter the combustion box 200 through the gas transmission pipe a110. Combustion to make it burn more fully, the burned flue gas will enter the filter assembly 310 through the pipeline, the activated carbon plate 311 and the soot adsorption plate 313 can adsorb the mixed soot particles in the flue gas, and the set sulfide adsorption The plate 312 can filter the sulfide contained in the flue gas, the filtered flue gas will enter the gas storage pipe 330 through the connecting pipe 332, and the provided gas storage pipe 330 can spray the flue gas through the nozzle 331 to the mesh placement plate. The items on 340 are dried, and then the flue gas rising to the top of the waste heat recovery box 300 will enter the serpentine heat exchange tube 410 through the gas pipe b350, and the flue gas can pass through the serpentine heat exchange tube 410 to the hot water tank 400. The water inside is heated, so that the heat can be used again, and then the flue gas can be discharged through the exhaust pipe 420 .

Although the present invention has been described above with reference to the embodiments, various modifications may be made and equivalents may be substituted for parts thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features in the disclosed embodiments of the present invention can be combined with each other in any way, and the description of these combinations is not exhaustive in this specification. For the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (8)

1. A regenerative oxidation furnace flue gas waste heat recovery device, comprising an oxidation furnace (100), characterized in that: the upper part of the inner wall of the left end of the oxidation furnace (100) is fixedly connected with a gas transmission pipe a by means of flange connection (110), a combustion box (200) is fixedly connected to the other end of the gas transmission pipe a (110), and a waste heat recovery box (300) is connected to the inner wall of the right end of the combustion box (200) through a pipeline. The waste heat recovery box (300) A hot water tank (400) is fixed to the top end by means of rivet connection. 2. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 1, characterized in that: the side end wall of the combustion box (200) is fixedly connected with an insulating refractory layer ( 210), a vortex burner (220) is fixedly connected to the inner end wall of the heat insulating and refractory layer (210), and the other end of the vortex burner (220) is connected to a gas tank through a pipeline. 3. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 2, characterized in that: the heat insulating refractory layer (210) is specifically made of a mixture of fused corundum, sintered alumina and industrial alumina to make. 4. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 1, characterized in that: a partition (320) is fixedly connected to the bottom of the inner end wall of the waste heat recovery box (300), and the partition A mesh placement plate (340) is arranged on the upper end of the plate (320), and a filter assembly (310) is fixedly connected to the bottom end of the partition plate (320). 5. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 4, characterized in that: the filter assembly (310) comprises an activated carbon plate (311), and the right end of the activated carbon plate (311) A sulfide adsorption plate (312) is provided at the end, and an activated carbon plate (311) is provided at the right end of the sulfide adsorption plate (312). The activated carbon plate (311), the sulfide adsorption plate (312) and the smoke adsorption The outer end walls of the plate (313) are all slidably connected to the inner end walls of the waste heat recovery box (300). 6. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 4, characterized in that: between the upper end of the partition plate (320) and the bottom end of the mesh placement plate (340), a An air storage pipe (330), the ends on both sides of the air storage pipe (330) are fixedly connected to the inner walls of both ends of the waste heat recovery box (300), and the top end of the gas storage pipe (330) is fixedly connected with a nozzle (331), the A connecting pipe (332) is fixed on the right end of the bottom outer wall of the gas storage pipe (330), the bottom end of the connecting pipe (332) is connected with the right end of the bottom outer wall of the partition plate (320), and the connecting pipe (332) 332) is arranged at the right end of the soot adsorption plate (313). 7. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 4, characterized in that: sliding seats (341) are provided on both ends of the mesh placement plate (340) by sliding connection ), and the other end of the sliding seat (341) is fixedly connected to the inner walls of both sides of the waste heat recovery box (300). 8. A regenerative oxidation furnace flue gas waste heat recovery device according to claim 1, characterized in that: a gas transmission pipe b (350) is fixedly connected to the top of the waste heat recovery box (300), and the hot water The box (400) is provided with a serpentine heat exchange tube (410), the bottom end of the serpentine heat exchange tube (410) is connected to the upper end of the gas transmission pipe b (350), and the serpentine heat exchange tube (410) An exhaust pipe (420) is fixedly connected to the upper end, and the exhaust pipe (420) is fixedly connected to the outer wall of the top end of the hot water tank (400).

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