Crude benzene hydrogenation exhaust gas incineration device with waste heat recycling function

Abstract

The application discloses a crude benzene hydrogenation waste gas incineration device with waste heat recycling function, which comprises a furnace body, a support is fixedly installed outside the furnace body, a refractory brick layer is arranged on the inner wall of the furnace body, an installation pipe is communicated with one end of the furnace body, a discharge pipe is communicated with the bottom of the other end of the furnace body, a bend pipe is communicated with the end of the furnace body away from the installation pipe, an ash collecting metal mesh is movably installed in the bend pipe, a branch pipe is communicated with the top end of the bend pipe, and a threaded plate is fixedly installed in the branch pipe. The ceramic fiber felt is arranged, the first spray pipe and the second spray pipe spray the corresponding contents into the furnace body during operation, the ceramic fiber felt is used for heat insulation of the first spray pipe, the second spray pipe, the furnace body and the refractory brick layer, the temperature is reduced to be led out to the outside world, the influence on the first spray pipe and the second spray pipe is reduced, the overall structure effect is stabilized, and the device is convenient to use.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of waste gas treatment equipment, and particularly relates to a crude benzene hydrogenation waste gas incineration device with waste heat recycling function. BACKGROUND

[0002] The waste gas combustion method is a method for converting combustible harmful components in waste gas into harmless substances or substances easy to be further treated and recycled through thermal oxidation. For example, hydrocarbon waste gas and other harmful gas in the petroleum industry, solvent industry waste gas, organic waste gas generated in municipal waste incineration treatment, and almost all malodorous substances (mercaptan, H2S) can be treated by the combustion method.

[0003] Due to the complex composition of waste water generated in the production process, a large amount of ammonia, hydrogen sulfide, chlorides and organic matter are contained, and after the stripping treatment, the water quality is still relatively complex. After multiple experiments and experimental treatment by a third-party environmental protection water treatment unit, the effect is not ideal. Other treatment methods have high cost and do not have the function of environmental protection and multiple forms of recycling. Based on this, the present application provides a crude benzene hydrogenation waste gas incineration device with waste heat recycling function. SUMMARY

[0004] In view of the deficiencies in the prior art, the present application aims to provide a crude benzene hydrogenation waste gas incineration device with waste heat recycling function, which solves the problems of high cost, low efficiency and lack of environmental protection and multiple forms of recycling function of other treatment methods.

[0005] In order to achieve the above object, the present application provides the following technical scheme: a crude benzene hydrogenation waste gas incineration device with waste heat recycling function, comprising a furnace body, a support is fixedly installed outside the furnace body, a refractory brick layer is arranged on the inner wall of the furnace body, an installation pipe is communicated with one end of the furnace body, a discharge pipe is communicated with the bottom of the other end of the furnace body, a bend pipe is communicated with the end of the furnace body away from the installation pipe, a dust collecting metal mesh is movably installed in the interior of the bend pipe, a branch pipe is communicated with the top end of the bend pipe, a threaded plate is fixedly installed in the interior of the branch pipe, a plurality of threaded pipes are fixedly installed in the interior of the threaded plate, a water inlet pipe two is communicated with the top end of the threaded pipe, a water outlet pipe two is communicated with the bottom end of the threaded pipe, a connecting pipe is communicated with the top end of the branch pipe, a support ring is fixedly installed in the interior of the connecting pipe, a plurality of movable rings are movably sleeved in the interior of the connecting pipe, a filter plate is movably installed on the opposite side of the movable ring, a flow guide head is screwedly installed in the interior of the connecting pipe away from the branch pipe, a heat conducting plate is fixedly installed in the interior of the furnace body, a flow guide groove is formed in the interior of the heat conducting plate, a plurality of through holes are formed in the interior of the heat conducting plate, a water inlet pipe one is communicated with one end of the flow guide groove, a spiral pipe is communicated with the other end of the flow guide groove, a water outlet pipe one is communicated with the other end of the spiral pipe, an injection gun is arranged in the interior of the furnace body and the refractory brick layer, a first spray pipe is arranged in the interior of the furnace body and the refractory brick layer, a second spray pipe is arranged in the interior of the furnace body and the refractory brick layer, ceramic fiber felt is fixedly installed on the outer side of the injection gun, the first spray pipe and the second spray pipe, a spray gun is installed in the interior of the first spray pipe and the second spray pipe, and a flow guide cone is arranged on the inner side of the furnace body and the refractory brick layer.

[0006] Preferably, the bend pipe, the branch pipe and the connecting pipe are fixedly installed through the flange plate and the bolt.

[0007] By adopting the above technical scheme, the advantages are that the structures can be disassembled and assembled through the flange plate, the structure is stable, and the disassembly, assembly and maintenance are facilitated.

[0008] Preferably, the threaded pipes are uniformly distributed in the interior of the threaded plate in the form of threaded spirals, and the water inlet pipe two and the water outlet pipe two penetrate through the branch pipe and extend to the outer side of the branch pipe.

[0009] By adopting the above technical scheme, the advantages are that the contact area with the airflow and the heat exchange effect are increased, and the overall waste heat utilization efficiency is improved.

[0010] Preferably, the filter plates and the movable rings are linearly and staggeredly uniformly distributed in the interior of the connecting pipe, and the specifications and sizes of the filter plates and the movable rings are matched with the specifications and sizes of the connecting pipe.

[0011] By adopting the above technical scheme, the advantages are that the pretreatment efficiency of the airflow is improved, the environmental protection is increased, and the convenience of subsequent cleaning and maintenance is increased.

[0012] Preferably, the through holes are uniformly distributed in the circumferential direction of the heat conduction plate, and the through holes are communicated at both sides of the heat conduction plate.

[0013] By adopting the above technical scheme, the advantage lies in facilitating to improve the heat exchange efficiency while avoiding the obstruction to the heat and the incineration efficiency, and facilitating to stabilize the effect.

[0014] Preferably, the water outlet pipe one and the water inlet pipe one both penetrate through the furnace body and extend to the outside of the furnace body, and the spiral pipe is uniformly fixed and sleeved on the inner wall of the refractory brick layer in the circumferential direction.

[0015] By adopting the above technical scheme, the advantage lies in utilizing the heat of incineration to perform heat exchange, and facilitating to improve the efficiency of heat exchange and heat exchange.

[0016] Preferably, the ceramic fiber felt is fixedly arranged on the opposite side of the furnace body and the refractory brick layer from the injection gun, the first spray pipe and the second spray pipe.

[0017] By adopting the above technical scheme, the advantage lies in reducing the influence on the first spray pipe and the second spray pipe, stabilizing the overall structural effect, and facilitating to use.

[0018] Preferably, the discharge pipe is communicated at the bottom of one end of the furnace body.

[0019] By adopting the above technical scheme, the advantage lies in facilitating to guide out the impurities, improving the cleaning efficiency, and facilitating to stabilize the operation efficiency.

[0020] Compared with the prior art, the present application has the following beneficial effects:

[0021] 1. By arranging the mounting pipe, during operation, the operator connects the mounting pipe with the related equipment, and connects the first spray pipe and the second spray pipe with the output equipment of the incinerable waste gas and the incineration material provided with the metering pump respectively, and then burns the waste gas by incineration, and then when incinerating in the furnace body, the refractory brick layer plays a role of heat insulation protection, and the water inlet pipe one, the water inlet pipe two, the water outlet pipe one and the water outlet pipe two are connected with the heat exchange equipment, when the heat exchange liquid is connected into the flow guide groove through the water inlet pipe one, the heat of the heat conduction plate and the furnace body is taken away and enters into the spiral pipe to exchange heat, the heat of incineration is utilized to exchange heat, then the gas and the residual heat generated after incineration are discharged into the branch pipe through the elbow, then the heat exchange liquid enters into the threaded pipe through the water inlet pipe two, and then the heat exchange liquid and the hot gas flow are countercurrent after the hot gas flow is spirally guided and heat conducted through the threaded plate and the threaded pipe, so that the residual heat is maximized, and then the liquid is guided out through the water outlet pipe two, thereby facilitating to double utilize the residual heat to increase the maximized utilization effect.

[0022] 2. Through the ash-collecting metal mesh and filter plate, some dust particles may be generated when waste is discharged during the incineration process. At this time, the ash-collecting metal mesh provides a fine metal mesh for the dust to adhere to, which facilitates the dust retention effect. Then, the airflow passes through the filter plate, which filters the small particles in the airflow, making it easier for the subsequent guide head to guide the airflow into the denitrification equipment. This improves the pretreatment efficiency of the airflow, increases environmental protection, and facilitates subsequent cleaning and maintenance.

[0023] 3. With the ceramic fiber felt installed, the first and second nozzles spray the corresponding contents into the furnace body during operation. This facilitates heat insulation between the first and second nozzles and the furnace body and refractory brick layer through the ceramic fiber felt, reducing the heat loss to the outside environment and minimizing the impact on the first and second nozzles. This stabilizes the overall structural effect and makes it easy to use. Attached Figure Description

[0024] Figure 1 This is a front-view stereoscopic appearance structural diagram of the present invention;

[0025] Figure 2 This is a rear-view stereoscopic view of the structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the right-side cross-sectional structure of the present invention;

[0028] Figure 5 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0029] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point B;

[0030] Figure 7 This is a schematic diagram of the equipment incineration monitoring data of the present invention.

[0031] In the diagram: 1. Furnace body; 2. Injection gun; 3. Outlet pipe 1; 4. Inlet pipe 2; 5. Connecting pipe; 6. Guide head; 7. Branch pipe; 8. Outlet pipe 2; 9. Bend; 10. Discharge pipe; 11. Support; 12. Inlet pipe 1; 13. Installation pipe; 14. First spray pipe; 15. Second spray pipe; 16. Guide groove; 17. Guide cone; 18. Threaded pipe; 19. Threaded plate; 20. Ash collection metal mesh; 21. Coiled pipe; 22. Heat conducting plate; 23. Through hole; 24. Spray gun; 25. Ceramic fiber felt; 26. Support ring; 27. Filter plate; 28. Movable ring; 29. ​​Refractory brick layer. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1-7 As shown, a crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function includes a furnace body 1. A bracket 11 is fixedly installed on the outer side of the furnace body 1. A refractory brick layer 29 is provided on the inner wall of the furnace body 1. One end of the furnace body 1 is connected to an installation pipe 13, and the bottom of the other end of the furnace body 1 is connected to a discharge pipe 10. The end of the furnace body 1 away from the installation pipe 13 is connected to a bend pipe 9. A metal mesh for collecting ash is movably installed inside the bend pipe 9. The top end of the bend pipe 9 is connected to a branch pipe 7. A threaded plate 19 is fixedly installed inside the branch pipe 7. Several threaded pipes 18 are fixedly installed inside the threaded plate 19. The top end of the threaded pipes 18 is connected to a second water inlet pipe 4, and the bottom end of the threaded pipes 18 is connected to a second water outlet pipe 8. The top end of the branch pipe 7 is connected to a connecting pipe 5. A support ring 26 is fixedly installed inside the connecting pipe 5. Several movable rings 28 are movably sleeved inside the connecting pipe 5. The opposite sides of the movable rings 28 are movably mounted... The furnace body 1 is equipped with a filter plate 27. A guide head 6 is installed on the internal thread of the connecting pipe 5 away from the branch pipe 7. A heat-conducting plate 22 is fixedly installed inside the furnace body 1. A guide groove 16 is opened inside the heat-conducting plate 22. Several through holes 23 are opened inside the heat-conducting plate 22. One end of the guide groove 16 is connected to a water inlet pipe 12. The other end of the guide groove 16 is connected to a coiled pipe 21. The other end of the coiled pipe 21 is connected to a water outlet pipe 3. An injection gun 2 is installed inside the furnace body 1 and the refractory brick layer 29. A first spray pipe 14 is installed inside the furnace body 1 and the refractory brick layer 29. A second spray pipe 15 is installed inside the furnace body 1 and the refractory brick layer 29. Ceramic fiber felt 25 is fixedly installed on the outside of the injection gun 2, the first spray pipe 14 and the second spray pipe 15. A spray gun 24 is installed inside the first spray pipe 14 and the second spray pipe 15. A guide cone 17 is installed on the inside of the furnace body 1 and the refractory brick layer 29.

[0034] The working principle of the above technical solution is as follows:

[0035] In the working process, the operator connects the installation pipe 13 with the relevant equipment, and connects the first spray pipe 14 and the second spray pipe 15 with the output equipment of the burnable waste gas and the incineration respectively provided with the metering pump, and then burns the waste gas by incineration. In the incineration process in the furnace body 1, the refractory brick layer 29 plays a role of heat insulation protection, and the water inlet pipe one 12, the water inlet pipe two 4, the water outlet pipe one 3 and the water outlet pipe two 8 are connected with the heat exchange equipment. When the heat exchange liquid is connected into the guide groove 16 through the water inlet pipe one 12, the heat of the heat conduction plate 22 and the heat in the furnace body 1 is taken away and enters into the spiral pipe 21 to exchange heat. The heat of the incineration is used to exchange heat. Then, the gas and the waste heat generated after the incineration are discharged into the branch pipe 7 through the elbow pipe 9. Then, the heat exchange liquid enters into the threaded pipe 18 through the water inlet pipe two 4. After the heat flow is spirally guided and heat-conducted through the threaded plate 19 and the threaded pipe 18, the heat exchange liquid is convection with the heat flow to maximize the use of the waste heat. Then, the liquid is discharged through the water outlet pipe two 8, so as to double use the waste heat and increase the maximization effect of the use.

[0036] In another embodiment, as shown in Figure 1 and Figure 2 The elbow pipe 9, the branch pipe 7 and the connecting pipe 5 are fixedly installed through the flange plate and the bolt.

[0037] The flange plate is convenient for disassembling and assembling the various structures, stabilizing the structure, and facilitating disassembly, assembly and maintenance.

[0038] In another embodiment, as shown in Figure 3 The threaded pipe 18 is uniformly distributed in the threaded plate 19 in the form of a threaded spiral. The water inlet pipe two 4 and the water outlet pipe two 8 penetrate through the branch pipe 7 and extend to the outside of the branch pipe 7.

[0039] The threaded pipe 18 and the threaded plate 19 are convenient for increasing the passing effect of the airflow, stabilizing the structure, increasing the contact surface with the airflow and the heat exchange effect, and improving the overall waste heat utilization efficiency.

[0040] In another embodiment, as shown in Figure 3 and Figure 6 The filter plate 27 and the movable ring 28 are linearly staggered and uniformly distributed in the connecting pipe 5. The specifications and sizes of the filter plate 27 and the movable ring 28 are matched with the specifications and sizes of the connecting pipe 5.

[0041] The filter plate 27 and the movable ring 28 are convenient to disassemble and maintain. The support ring 26 is located between the filter plate 27 and the movable ring 28 to provide limiting and facilitate installation. The ash collecting metal mesh 20 and the filter plate 27 are provided. During the incineration process, some sundry smoke dust particles may be generated when the waste is discharged. At this time, the ash collecting metal mesh 20 provides a fine metal mesh for the attachment of smoke dust, thereby facilitating the retention effect of dust. Then, the airflow is filtered by the filter plate 27 to filter the small particles in the airflow. The airflow is introduced into the desorption equipment by the flow guide head 6, thereby improving the pretreatment efficiency of the airflow and increasing the convenience of subsequent cleaning and maintenance.

[0042] In another embodiment, as shown in Figures 1-3 The through holes 23 are uniformly distributed in the inside of the heat conduction plate 22, and the through holes 23 are connected on both sides of the heat conduction plate 22.

[0043] The through holes 23 are distributed in the inside of the heat conduction plate 22 and the non-distribution place of the flow guide groove 16, thereby improving the heat exchange efficiency and avoiding the obstruction of heat and incineration efficiency, and facilitating stable effect.

[0044] In another embodiment, as shown in Figure 1 and Figure 2 The water outlet pipe 1 and the water inlet pipe 1 extend to the outside of the furnace body 1, and the spiral pipe 21 is uniformly fixed and sleeved on the inner wall of the refractory brick layer 29.

[0045] When the heat exchange liquid is connected into the flow guide groove 16 through the water inlet pipe 1, the heat of the heat conduction plate 22 and the inside of the furnace body 1 is taken away and enters the inside of the spiral pipe 21 to exchange heat with the inside of the furnace body 1. The heat of the incineration is used for heat exchange, thereby improving the efficiency of heat exchange and heat exchange.

[0046] In another embodiment, as shown in Figure 3 and Figure 5 The ceramic fiber felt 25 is fixedly arranged on the opposite side of the furnace body 1, the refractory brick layer 29, the injection gun 2, the first spray pipe 14 and the second spray pipe 15.

[0047] The ceramic fiber felt 25 is arranged. When the first spray pipe 14 and the second spray pipe 15 spray the corresponding contents into the inside of the furnace body 1, the ceramic fiber felt 25 is used to insulate the first spray pipe 14 and the second spray pipe 15 from the furnace body 1 and the refractory brick layer 29, thereby reducing the temperature conducted to the outside and reducing the influence on the first spray pipe 14 and the second spray pipe 15, stabilizing the overall structure effect and facilitating use.

[0048] In another embodiment, as shown in Figure 3As shown, the exhaust pipe 10 is communicated at the bottom of one end of the furnace body 1.

[0049] The exhaust pipe 10 facilitates the cleaning of the waste in the furnace body 1 after incineration, facilitates the export, improves the cleaning efficiency, and facilitates the stable operation efficiency.

[0050] The working principle and use process of the present application are as follows: during operation, the operator connects the installation pipe 13 to the relevant equipment, and connects the first spray pipe 14 and the second spray pipe 15 to the output equipment of the incinerable waste gas and the incinerable material provided with a metering pump, respectively, and then burns the waste gas by incineration, and then during the incineration in the furnace body 1, the refractory brick layer 29 plays a role of heat insulation protection, and the water inlet pipe one 12, the water inlet pipe two 4, the water outlet pipe one 3 and the water outlet pipe two 8 are communicated with the heat exchange equipment, when the heat exchange liquid is communicated into the flow guide groove 16 through the water inlet pipe one 12, it takes away the heat of the heat conduction plate 22 and the inside of the furnace body 1, and enters the inside of the spiral pipe 21 to exchange heat with the heat of the inside of the furnace body 1, and the heat of the incineration is used for heat exchange, and then the gas and the waste heat generated after incineration are discharged into the branch pipe 7 through the elbow pipe 9, and then the heat exchange liquid enters the threaded pipe 18 through the water inlet pipe two 4, and then the heat exchange liquid and the hot gas flow are countercurrent after the hot gas flow is spirally guided and heat-conducted by the threaded plate 19 and the threaded pipe 18, so as to maximize the use of waste heat, and then the liquid is discharged through the water outlet pipe two 8, so as to double use the waste heat and increase the maximum utilization effect, and through the setting of the dust collecting metal mesh 20 and the filter plate 27, some dust particles may be generated during the discharge of waste during the incineration process, at this time, the dust collecting metal mesh 20 provides a fine metal mesh for the dust to adhere, so as to increase the retention effect of the dust, and then the airflow is filtered by the filter plate 27 to filter the small particles in the airflow, so as to facilitate the subsequent flow guide head 6 to guide the airflow into the desorption equipment, so as to improve the pretreatment efficiency of the airflow and increase the environmental protection, so as to increase the convenience of subsequent cleaning and maintenance, and through the setting of the ceramic fiber felt 25, during operation, the first spray pipe 14 and the second spray pipe 15 spray the corresponding contents into the furnace body 1, so as to heat insulate the first spray pipe 14 and the second spray pipe 15, the furnace body 1 and the refractory brick layer 29 by the ceramic fiber felt 25, so as to reduce the temperature exported to the outside and reduce the influence on the first spray pipe 14 and the second spray pipe 15, stabilize the overall structure effect, and facilitate use.

[0051] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function, comprising a furnace body (1), characterized in that: A bracket (11) is fixedly installed on the outside of the furnace body (1). A refractory brick layer (29) is provided on the inner wall of the furnace body (1). An installation pipe (13) is connected to one end of the furnace body (1). A discharge pipe (10) is connected to the bottom of the other end of the furnace body (1). A bend pipe (9) is connected to the end of the furnace body (1) away from the installation pipe (13). A dust-collecting metal mesh (20) is movably installed inside the bend pipe (9). A branch pipe (7) is connected to the top of the bend pipe (9). A threaded plate (1) is fixedly installed inside the branch pipe (7). 9) Several threaded pipes (18) are fixedly installed inside the threaded plate (19). The top end of the threaded pipe (18) is connected to the second water inlet pipe (4), and the bottom end of the threaded pipe (18) is connected to the second water outlet pipe (8). The top end of the branch pipe (7) is connected to the connecting pipe (5). A support ring (26) is fixedly installed inside the connecting pipe (5). Several movable rings (28) are movably sleeved inside the connecting pipe (5). A filter plate (27) is movably installed on the opposite side of the movable rings (28). The connecting pipe (5) is far away from the support ring. A guide head (6) is installed on the internal thread of one end of the tube (7). A heat-conducting plate (22) is fixedly installed inside the furnace body (1). A guide groove (16) is opened inside the heat-conducting plate (22). Several through holes (23) are opened inside the heat-conducting plate (22). One end of the guide groove (16) is connected to a water inlet pipe (12). The other end of the guide groove (16) is connected to a coiled pipe (21). The other end of the coiled pipe (21) is connected to a water outlet pipe (3). The furnace body (1) and the refractory brick layer (29) are connected to each other. An injection gun (2) is provided in the furnace body (1) and the refractory brick layer (29). A first nozzle (14) is provided inside the furnace body (1) and the refractory brick layer (29). A second nozzle (15) is provided inside the furnace body (1) and the refractory brick layer (29). Ceramic fiber felt (25) is fixedly installed on the outside of the injection gun (2), the first nozzle (14) and the second nozzle (15). A spray gun (24) is installed inside the first nozzle (14) and the second nozzle (15). A guide cone (17) is provided on the inside of the furnace body (1) and the refractory brick layer (29).

2. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The bend (9), branch pipe (7) and connecting pipe (5) are all fixedly installed by flange plates and bolts.

3. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The threaded pipe (18) is evenly distributed in a spiral pattern inside the threaded plate (19). The second water inlet pipe (4) and the second water outlet pipe (8) both penetrate the branch pipe (7) and extend to the outside of the branch pipe (7).

4. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The filter plate (27) and the movable ring (28) are linearly and evenly distributed inside the connecting pipe (5), and the specifications and dimensions of the filter plate (27) and the movable ring (28) are adapted to the specifications and dimensions of the connecting pipe (5).

5. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The through holes (23) are evenly distributed in a circular pattern inside the heat-conducting plate (22), and the through holes (23) connect the two sides of the heat-conducting plate (22).

6. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The outlet pipe (3) and inlet pipe (12) both penetrate the furnace body (1) and extend to the outside of the furnace body (1). The spiral pipe (21) is uniformly and circumferentially fixed to the inner wall of the refractory brick layer (29).

7. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The ceramic fiber felt (25) is fixedly installed on the furnace body (1) and the refractory brick layer (29) on the opposite side of the injection gun (2), the first nozzle (14) and the second nozzle (15).

8. The crude benzene hydrogenation waste gas incineration device with waste heat recovery and utilization function according to claim 1, characterized in that: The discharge pipe (10) is connected to the bottom of one end of the furnace body (1).

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