Tail gas firing furnace for carbon disulfide production

Abstract

The invention relates to a tail gas firing furnace for carbon disulfide production, and relates to the technical field of sulfur chemical industry, the tail gas firing furnace comprises a reaction furnace for firing tail gas and oxygen, and one end of the reaction furnace is communicated with a first exhaust pipe; a second exhaust pipe is fixedly mounted in the heat preservation furnace, the second exhaust pipe is communicated with one end, far away from the reaction furnace, of the first exhaust pipe, and exhaust ports are uniformly formed in the second exhaust pipe; the mixing furnace is fixedly mounted in the heat preserving furnace and is used for mixing tail gas and oxygen; the tail gas inlet assembly is installed on the mixing furnace and used for introducing tail gas into the mixing furnace. The oxygen inlet assembly is installed on the mixing furnace and used for introducing oxygen into the mixing furnace. The method has the effects that the energy consumption of the tail gas burning furnace is reduced, and the running cost of the tail gas burning furnace is reduced.

Description

Technical Field

[0001] This application relates to the technical field of vulcanization, and particularly to a tail gas incinerator for carbon disulfide production. Background Art

[0002] During the production process of carbon disulfide, tail gas treatment is a key link. The tail gas contains harmful components such as unreacted sulfur vapor, hydrogen sulfide, and organic sulfides. If the tail gas is directly discharged, it will seriously pollute the environment and endanger human health. Traditional tail gas treatment methods include alkali liquor absorption method, activated carbon adsorption method, condensation recovery method, and high-temperature incineration method, etc. Among them, the high-temperature incineration method has a relatively high decomposition conversion rate of sulfides, so the high-temperature incineration method has become the mainstream tail gas treatment solution.

[0003] When treating the tail gas through the incinerator, the internal temperature of the incinerator needs to be continuously maintained at 800 to 1200 degrees Celsius. Therefore, it is necessary to continuously supplement fuel to maintain the high temperature, resulting in high energy consumption and expensive operating costs.

[0004] However, in the prior art, during the operation of the incinerator, a large amount of waste heat is not recovered, resulting in serious energy waste. Summary of the Invention

[0005] In order to save the energy consumption of the tail gas incinerator and reduce the operating cost of the tail gas incinerator, this application provides a tail gas incinerator for carbon disulfide production.

[0006] A tail gas incinerator for carbon disulfide production provided by this application adopts the following technical solutions: A tail gas incinerator for carbon disulfide production includes: A reaction furnace for incinerating tail gas and oxygen, and one end of the reaction furnace is connected to a first exhaust pipe; A heat preservation furnace, in which a second exhaust pipe is fixedly installed. The second exhaust pipe is connected to the end of the first exhaust pipe far from the reaction furnace. The second exhaust pipe is evenly provided with exhaust ports, and an air outlet is provided on the heat preservation furnace; A mixing furnace is fixedly installed in the heat preservation furnace. One end of the mixing furnace is connected to a third exhaust pipe, and the end of the third exhaust pipe far from the mixing furnace is connected to the reaction furnace. The mixing furnace is used for mixing tail gas and oxygen; A tail gas inlet assembly is installed on the mixing furnace, and the tail gas inlet assembly is used for introducing tail gas into the mixing furnace; The oxygen intake assembly includes an oxygen intake main pipe, which is arranged inside the heat preservation furnace. The oxygen intake main pipe is wound around and fixedly installed on the outer side wall of the mixing furnace. The oxygen intake main pipe is sequentially and communicatively arranged with an oxygen intake port, a third oxygen intake branch pipe, a second oxygen intake branch pipe, and a first oxygen intake branch pipe. The first oxygen intake branch pipe is the farthest from the oxygen intake port. The oxygen intake port is arranged at one end of the oxygen intake main pipe extending out of the heat preservation furnace. The first oxygen intake branch pipe, the second oxygen intake branch pipe, and the third oxygen intake branch pipe are all communicated with the mixing furnace.

[0007] Optionally, the tail gas intake assembly includes: A tail gas intake main pipe, which is penetrated and rotatably installed at one end of the mixing furnace away from the reaction furnace. The tail gas intake main pipe is sequentially communicated with a first tail gas intake branch pipe, a second tail gas intake branch pipe, and a third tail gas intake branch pipe. The first tail gas intake branch pipe is arranged at one end of the tail gas intake main pipe close to the reaction furnace. The third tail gas intake branch pipe is arranged at one end of the tail gas intake main pipe away from the reaction furnace; A tail gas outlet main pipe, which is coaxially sleeved on the tail gas intake main pipe. The outer wall of the tail gas intake main pipe is closely attached to the inner wall of the tail gas outlet main pipe. The tail gas outlet main pipe is fixedly installed inside the mixing furnace. Two partitions are coaxially and fixedly installed inside the tail gas outlet main pipe. The two partitions divide the tail gas outlet main pipe into a first chamber, a second chamber, and a third chamber in sequence. A first tail gas intake port is penetrated and opened on the inner wall of the first chamber, and the first tail gas intake port can be communicated with the first tail gas intake branch pipe. A second tail gas intake port is penetrated and opened on the inner wall of the second chamber, and the second tail gas intake port can be communicated with the second tail gas intake branch pipe. A third tail gas intake port is penetrated and opened on the inner wall of the third chamber, and the third tail gas intake port can be communicated with the third tail gas intake branch pipe. A first tail gas outlet pipe is penetrated on the outer wall of the first chamber, and one end of the first tail gas outlet pipe is penetrated inside the first oxygen intake branch pipe. A second tail gas outlet pipe is penetrated on the outer wall of the second chamber, and one end of the second tail gas outlet pipe is penetrated inside the second oxygen intake branch pipe. A third tail gas outlet pipe is penetrated on the outer wall of the third chamber, and one end of the third tail gas outlet pipe is penetrated inside the third oxygen intake branch pipe.

[0008] Optionally, a tail gas outlet assembly is connected to the tail gas intake assembly. The tail gas outlet assembly includes: A first driving bevel gear, which is rotatably installed on one of the partitions. A first driven bevel gear is meshed and connected to the first driving bevel gear, and the first driven bevel gear is rotatably installed inside the tail gas outlet main pipe; A second driving bevel gear, which is rotatably installed on the other partition board. The first driving bevel gear is coaxial with and fixedly connected to the second driving bevel gear. A second driven bevel gear is meshed with the second driving bevel gear, and the second driven bevel gear is rotatably installed in the main exhaust gas outlet pipe. A third driving bevel gear, which is rotatably installed in the main exhaust gas outlet pipe. A third driven bevel gear is meshed with the third driving bevel gear, and the third driven bevel gear is rotatably installed in the main exhaust gas outlet pipe. A plurality of fan blades, which are respectively rotatably installed in the first oxygen inlet branch pipe, the second oxygen inlet branch pipe and the third oxygen inlet branch pipe, and the plurality of fan blades are respectively sleeved and coaxially fixed on the first exhaust gas outlet pipe, the second exhaust gas outlet pipe and the third exhaust gas outlet pipe.

[0009] Optionally, the exhaust gas outlet assembly further includes: A first telescopic rod, the fixed end of which is fixedly installed on the inner wall of the first chamber; A second telescopic rod, the fixed end of which is fixedly installed on the inner wall of the second chamber; A third telescopic rod, the fixed end of which is fixedly installed on the inner wall of the third chamber; Two first friction plates, one of the first friction plates is fixedly installed on the first driven bevel gear, and the other first friction plate is fixedly installed on the first exhaust gas outlet pipe and is slidably connected to the movable end of the first telescopic rod; Two second friction plates, one of the second friction plates is fixedly installed on the second driven bevel gear, and the other second friction plate is fixedly installed on the second exhaust gas outlet pipe and is slidably connected to the movable end of the second telescopic rod; Two third friction plates, one of the third friction plates is fixedly installed on the third driven bevel gear, and the other third friction plate is fixedly installed on the third exhaust gas outlet pipe and is slidably connected to the movable end of the third telescopic rod; A first return spring, which is sleeved on the first exhaust gas outlet pipe. One end of the first return spring is fixedly connected to the inner wall of the first chamber, and the other end of the first return spring is fixedly connected to the first exhaust gas outlet pipe; A second return spring, which is sleeved on the second exhaust gas outlet pipe. One end of the second return spring is fixedly connected to the inner wall of the second chamber, and the other end of the second return spring is fixedly connected to the second exhaust gas outlet pipe; A third return spring, the third return spring is sleeved on the third exhaust gas outlet pipe, one end of the third return spring is fixedly connected to the inner wall of the third chamber, and the other end of the third return spring is fixedly connected to the third exhaust gas outlet pipe.

[0010] Optionally, the exhaust gas outlet assembly further includes: A fourth telescopic rod, the fixed end of the fourth telescopic rod is coaxially and fixedly installed on the exhaust gas inlet main pipe, and a screw rod is coaxially and fixedly installed at the movable end of the fourth telescopic rod; A threaded sleeve, the threaded sleeve is coaxially and fixedly installed in the exhaust gas outlet main pipe, and the screw rod is threadedly connected in the threaded sleeve; An oil bladder, the oil bladder is embedded in the threaded sleeve, and the oil bladder abuts against the screw rod; A first communication pipe, one end of the first communication pipe is communicated with the oil bladder, the other end of the first communication pipe is communicated with the rodless cavity of the fixed end of the first telescopic rod, and a first pressure valve is installed on the first communication pipe; A second communication pipe, one end of the second communication pipe is communicated with the oil bladder, the other end of the second communication pipe is communicated with the rodless cavity of the fixed end of the second telescopic rod, and a second pressure valve is installed on the second communication pipe; A third communication pipe, one end of the third communication pipe is communicated with the oil bladder, the other end of the third communication pipe is communicated with the rodless cavity of the fixed end of the third telescopic rod, and a third pressure valve is installed on the third communication pipe.

[0011] Optionally, the exhaust gas inlet assembly further includes: A first spur gear, the first spur gear is coaxially sleeved and fixedly installed on the exhaust gas inlet main pipe; A second spur gear, the second spur gear is meshed with the first spur gear; A first motor, the output end of the first motor is coaxially and fixedly connected to the second spur gear.

[0012] Optionally, the exhaust gas outlet assembly further includes: A third spur gear, the third spur gear is coaxially and fixedly connected to the third driving bevel gear, and the third spur gear is rotatably installed in the exhaust gas outlet main pipe; A fourth spur gear, the fourth spur gear is meshed with the third spur gear; A second motor, the output end of the second motor is coaxially and fixedly connected to the fourth spur gear, and the output end of the second motor passes through the exhaust gas outlet main pipe.

[0013] Optionally, the oxygen inlet assembly further includes: Multiple fixing plates, and multiple said fixing plates are fixedly installed in the first oxygen inlet branch pipe, the second oxygen inlet branch pipe, and the third oxygen inlet branch pipe correspondingly. Multiple said fixing plates are sleeved on the first tail gas outlet pipe, the second tail gas outlet pipe, and the third tail gas outlet pipe one by one. A first filtering hole is formed in the fixing plate, and a filter screen is fixedly installed in the first filtering hole; Multiple sliding plates, and multiple said sliding plates are slidably installed in the first oxygen inlet branch pipe, the second oxygen inlet branch pipe, and the third oxygen inlet branch pipe correspondingly. Multiple said sliding plates are sleeved and rotatably connected to the first tail gas outlet pipe, the second tail gas outlet pipe, and the third tail gas outlet pipe one by one. A second filtering hole is formed in the sliding plate, and a filter screen is fixedly installed in the second filtering hole. The sliding plate abuts against the fixing plate, and the first filtering hole and the second filtering hole are arranged in a dislocation manner.

[0014] Optionally, it further includes a combustion-supporting gas inlet pipe, and the combustion-supporting gas inlet pipe penetrates through the heat preservation furnace, and one end of the combustion-supporting gas inlet pipe is communicated with the reaction furnace.

[0015] Optionally, the reaction furnace and the heat preservation furnace are both fixedly installed on a support frame; the fixed ends of the first motor and the second motor are both fixedly installed on the support frame.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The tail gas enters the mixing furnace through the tail gas inlet assembly and the tail gas outlet assembly. At the same time, oxygen enters the mixing furnace through the oxygen inlet assembly. The tail gas and oxygen are fully mixed in the mixing furnace, and the mixed gas enters the reaction furnace for high-temperature reaction. The high-temperature tail gas generated after the reaction is discharged into the heat preservation furnace through the first exhaust pipe, the second exhaust pipe, and the exhaust port. The high-temperature tail gas heats the inner cavity of the heat preservation furnace, so that the temperature of the mixed gas in the mixing furnace rises, reducing the heat energy required for the high-temperature reaction of the mixed gas in the reaction furnace, recovering the waste heat of the high-temperature tail gas after the reaction in the reaction furnace, saving the energy consumption of the tail gas burning furnace, and reducing the operation cost of the tail gas burning furnace; 2. When the required amount of oxygen gradually increases, oxygen enters the mixing furnace through the first oxygen inlet branch pipe, the second oxygen inlet branch pipe, and the third oxygen inlet branch pipe in sequence, extending the flow time of oxygen in the oxygen inlet main pipe, and further extending the heating time of oxygen in the heat preservation furnace, enhancing the preheating effect of oxygen, and improving the waste heat recovery efficiency of the high-temperature tail gas; 3. When the exhaust gas inlet main pipe rotates, through the settings of the first exhaust gas inlet, the second exhaust gas inlet, and the third exhaust gas inlet, the amount of exhaust gas entering the mixing furnace can be controlled; and when the exhaust gas inlet main pipe rotates, through the settings of the fixed plate and the sliding plate, the amount of oxygen entering the mixing furnace can be adaptively controlled based on the change in the amount of exhaust gas, ensuring the appropriate mixing of oxygen and exhaust gas and improving the burning effect. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of an embodiment of the present application; Figure 2 is a schematic diagram for showing the internal structure of an embodiment of the present application; Figure 3 is a schematic diagram for showing the internal structure of the heat preservation furnace; Figure 4 is a partial structural cross-sectional view for showing the oxygen inlet main pipe; Figure 5 is a schematic structural diagram for showing the exhaust gas inlet main pipe; Figure 6 is a schematic structural diagram for showing the exhaust gas outlet main pipe; Figure 7 is a partial schematic structural diagram for showing the exhaust gas outlet assembly; Figure 8 is a schematic structural diagram for showing the fixed plate and the sliding plate.

[0018] Description of the Reference Numerals: 1, reaction furnace; 11, first exhaust pipe; 2, heat preservation furnace; 21, second exhaust pipe; 22, exhaust port; 23, outlet; 3, mixing furnace; 31, third exhaust pipe; 4, exhaust gas inlet assembly; 41, exhaust gas inlet main pipe; 411, first exhaust gas inlet branch pipe; 412, second exhaust gas inlet branch pipe; 413, third exhaust gas inlet branch pipe; 42, exhaust gas outlet main pipe; 421, partition; 422, first chamber; 423, second chamber; 424, third chamber; 425, first exhaust gas inlet; 426, second exhaust gas inlet; 427, third exhaust gas inlet; 43, first exhaust gas outlet pipe; 44, second exhaust gas outlet pipe; 45, third exhaust gas outlet pipe; 46, first motor; 47, first spur gear; 48, second spur gear; 5, oxygen inlet assembly; 51, oxygen inlet main pipe; 511, first oxygen inlet branch pipe; 512, second oxygen inlet branch pipe; 513, third oxygen inlet branch pipe; 514, oxygen inlet; 52, fixed plate; 521, first filter hole; 53, sliding plate; 531, second filter hole; 54, filter screen; 6. Tail gas outlet assembly; 61. First driving bevel gear; 611. First driven bevel gear; 612. First telescopic rod; 613. First friction plate; 614. First return spring; 615. First connecting pipe; 62. Second driving bevel gear; 621. Second driven bevel gear; 622. Second telescopic rod; 623. Second friction plate; 624. Second return spring; 625. Second connecting pipe; 63. Third driving bevel gear; 631. Third driven bevel gear; 632. Third telescopic rod; 633. Third friction plate; 634. Third return spring; 635. Third connecting pipe; 64. Fourth telescopic rod; 641. Screw; 65. Threaded sleeve; 651. Oil bladder; 66. Second motor; 67. Third spur gear; 68. Fourth spur gear; 69. Fan blade; 7. Combustion-supporting gas inlet pipe; 8. Support frame. Detailed implementation mode

[0019] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0020] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0022] The following is a further detailed description of this application in combination with the attached Figures 1 to 8 drawings.

[0023] An embodiment of the present application discloses a tail gas burning furnace for carbon disulfide production.

[0024] Referring to Figures 1 to 3 , a tail gas burning furnace for carbon disulfide production includes a reaction furnace 1, a heat preservation furnace 2, a support frame 8, a mixing furnace 3, a tail gas inlet assembly 4, an oxygen inlet assembly 5, a tail gas outlet assembly 6, and a combustion-supporting gas inlet pipe 7.

[0025] Referring to Figure 1 and Figure 2 , the reaction furnace 1 is used to burn the tail gas and oxygen to complete the treatment of the tail gas. The reaction furnace 1 is a prior art and will not be elaborated here. One end of the reaction furnace 1 is connected to a first exhaust pipe 11, and the number of the first exhaust pipes 11 can be multiple.

[0026] Referring to Figures 1 to 3 , the outer wall of the heat preservation furnace 2 has heat preservation performance. A second exhaust pipe 21 is fixedly installed in the heat preservation furnace 2, and the number of the second exhaust pipes 21 can be multiple. The second exhaust pipe 21 is connected to the end of the first exhaust pipe 11 far from the reaction furnace 1. An exhaust port 22 is provided on the second exhaust pipe 21, and the number of the exhaust ports 22 can be multiple. An air outlet 23 is provided on the heat preservation furnace 2.

[0027] Referring to Figure 2 and Figure 3 , the mixing furnace 3 is fixedly installed in the heat preservation furnace 2. One end of the mixing furnace 3 is connected to a third exhaust pipe 31, and the end of the third exhaust pipe 31 far from the mixing furnace 3 is connected to the reaction furnace 1. The mixing furnace 3 is used to mix the tail gas and oxygen, and the outer wall of the mixing furnace 3 has good heat conduction performance.

[0028] The tail gas inlet assembly 4 is installed on the mixing furnace 3, and the tail gas inlet assembly 4 is used to introduce the tail gas into the mixing furnace 3. The oxygen inlet assembly 5 is installed on the mixing furnace 3, and the oxygen inlet assembly 5 is used to introduce oxygen into the mixing furnace 3. The tail gas outlet assembly 6 is connected to the tail gas inlet assembly 4. Both the reaction furnace 1 and the heat preservation furnace 2 are fixedly installed on the support frame 8.

[0029] The combustion-supporting gas inlet pipe 7 passes through the heat preservation furnace 2. One end of the combustion-supporting gas inlet pipe 7 is connected to the reaction furnace 1, and the other end of the combustion-supporting gas inlet pipe 7 is used to be connected to a combustion-supporting gas pump. The combustion-supporting gas pump introduces the combustion-supporting gas into the reaction furnace 1 through the combustion-supporting gas inlet pipe 7.

[0030] The tail gas enters the mixing furnace 3 through the tail gas inlet assembly 4 and the tail gas outlet assembly 6. At the same time, oxygen enters the mixing furnace 3 through the oxygen inlet assembly 5. The tail gas and oxygen are fully mixed in the mixing furnace 3, and the mixed gas enters the reaction furnace 1 for high-temperature reaction. The high-temperature flue gas generated after the reaction is discharged into the heat preservation furnace 2 through the first exhaust pipe 11, the second exhaust pipe 21 and the exhaust port 22. The high-temperature flue gas heats the inner cavity of the heat preservation furnace 2, increasing the temperature of the oxygen in the oxygen inlet assembly 5 and the mixed gas in the mixing furnace 3, reducing the thermal energy required for the high-temperature reaction of the mixed gas in the reaction furnace 1, recovering the waste heat of the high-temperature flue gas after the reaction in the reaction furnace 1, saving the energy consumption of the tail gas incinerator, and reducing the operating cost of the tail gas incinerator.

[0031] Refer to Figures 1 to 3 , the oxygen inlet assembly 5 includes an oxygen inlet main pipe 51, a first oxygen inlet branch pipe 511, a second oxygen inlet branch pipe 512, a third oxygen inlet branch pipe 513 and an oxygen inlet 514.

[0032] Refer to Figures 2 to 4 , the oxygen inlet main pipe 51 is arranged in the heat preservation furnace 2, the oxygen inlet main pipe 51 is wound around and fixedly installed on the outer side wall of the mixing furnace 3. The oxygen inlet 514, the third oxygen inlet branch pipe 513, the second oxygen inlet branch pipe 512 and the first oxygen inlet branch pipe 511 are sequentially connected and arranged on the oxygen inlet main pipe 51. The first oxygen inlet branch pipe 511 is the farthest from the oxygen inlet 514. The oxygen inlet 514 is arranged at one end of the oxygen inlet main pipe 51 extending out of the heat preservation furnace 2. The oxygen inlet 514 is connected to an oxygen pump, and the oxygen pump can introduce oxygen into the oxygen inlet main pipe 51. The first oxygen inlet branch pipe 511, the second oxygen inlet branch pipe 512 and the third oxygen inlet branch pipe 513 are all connected to the mixing furnace 3.

[0033] When introducing oxygen into the mixing furnace 3, the oxygen enters the oxygen inlet main pipe 51. According to different oxygen demand, the oxygen in the oxygen inlet main pipe 51 can sequentially enter the mixing furnace 3 through the first oxygen inlet branch pipe 511, the second oxygen inlet branch pipe 512 and the third oxygen inlet branch pipe 513. During the process of introducing oxygen, the inner cavity of the heat preservation furnace 2 is heated by the high-temperature flue gas, thereby increasing the temperature of the oxygen in the oxygen inlet main pipe 51, reducing the thermal energy required for the high-temperature reaction of the mixed gas in the reaction furnace 1, recovering the waste heat of the high-temperature flue gas after the reaction in the reaction furnace 1, saving the energy consumption of the tail gas incinerator, and reducing the operating cost of the tail gas incinerator.

[0034] Refer to Figure 2 and Figure 4 , the tail gas inlet assembly 4 includes a tail gas inlet main pipe 41 and a tail gas outlet main pipe 42.

[0035] Refer to Figure 4 and Figure 5, the tail gas inlet main pipe 41 is inserted through and rotatably installed at one end of the mixing furnace 3 away from the reaction furnace 1. A first tail gas inlet branch pipe 411, a second tail gas inlet branch pipe 412 and a third tail gas inlet branch pipe 413 are successively communicated on the tail gas inlet main pipe 41. The first tail gas inlet branch pipe 411 is arranged at one end of the tail gas inlet main pipe 41 close to the reaction furnace 1, and the third tail gas inlet branch pipe 413 is arranged at one end of the tail gas inlet main pipe 41 away from the reaction furnace 1.

[0036] Referring to Figure 4 and Figure 6 , the tail gas outlet main pipe 42 is coaxially sleeved on the tail gas inlet main pipe 41. The outer wall of the tail gas inlet main pipe 41 is closely attached to the inner wall of the tail gas outlet main pipe 42. The tail gas outlet main pipe 42 is fixedly installed in the mixing furnace 3. Two partition plates 421 are coaxially and fixedly installed in the tail gas outlet main pipe 42. The two partition plates 421 divide the tail gas outlet main pipe 42 into a first chamber 422, a second chamber 423 and a third chamber 424 in sequence.

[0037] Referring to Figure 6 and Figure 7 , a first tail gas inlet 425 is penetrated and opened on the inner wall of the first chamber 422. The first tail gas inlet 425 can be communicated with the first tail gas inlet branch pipe 411. A second tail gas inlet 426 is penetrated and opened on the inner wall of the second chamber 423. The second tail gas inlet 426 can be communicated with the second tail gas inlet branch pipe 412. A third tail gas inlet 427 is penetrated and opened on the inner wall of the third chamber 424. The third tail gas inlet 427 can be communicated with the third tail gas inlet branch pipe 413. The first tail gas inlet 425, the second tail gas inlet 426 and the third tail gas inlet 427 are all strip-shaped. The length of the first tail gas inlet 425 is greater than the length of the second tail gas inlet 426, and the length of the second tail gas inlet 426 is greater than the length of the third tail gas inlet 427.

[0038] Two first tail gas outlet pipes 43 are penetrated on the outer wall of the first chamber 422. One end of the first tail gas outlet pipe 43 is penetrated in the first oxygen inlet branch pipe 511. Two second tail gas outlet pipes 44 are penetrated on the outer wall of the second chamber 423. One end of the second tail gas outlet pipe 44 is penetrated in the second oxygen inlet branch pipe 512. Two third tail gas outlet pipes 45 are penetrated on the outer wall of the third chamber 424. One end of the third tail gas outlet pipe 45 is penetrated in the third oxygen inlet branch pipe 513.

[0039] In the initial state, the inner wall of the tail gas inlet main pipe 41 is in close contact with the inner wall of the tail gas outlet main pipe 42. The first tail gas inlet branch pipe 411, the second tail gas inlet branch pipe 412, and the third tail gas inlet branch pipe 413 are all closed by the inner wall of the tail gas outlet main pipe 42. When tail gas needs to be introduced, rotate the tail gas inlet main pipe 41 to connect the first tail gas inlet branch pipe 411 with the first tail gas inlet 425. The tail gas enters the first chamber 422 through the first tail gas inlet branch pipe 411 and the first tail gas inlet 425, and then enters the mixing furnace 3 through the first tail gas outlet pipe 43. The tail gas in the first tail gas outlet pipe 43 is mixed with the oxygen in the first oxygen inlet branch pipe 511.

[0040] When the amount of tail gas increases, more oxygen is needed to mix with the tail gas. Continue to rotate the tail gas inlet main pipe 41. On the basis that the first tail gas inlet branch pipe 411 is connected with the first tail gas inlet 425, gradually connect the second tail gas inlet branch pipe 412 with the second tail gas inlet 426. The tail gas enters the first chamber 422 and the second chamber 423 respectively. The tail gas in the first tail gas outlet pipe 43 is mixed with the oxygen in the first oxygen inlet branch pipe 511 and then discharged into the mixing furnace 3. The tail gas in the second tail gas outlet pipe 44 is mixed with the oxygen in the second oxygen inlet branch pipe 512 and then discharged into the mixing furnace 3. On the one hand, it raises the temperature of the mixed gas, and on the other hand, it ensures that there is sufficient oxygen in the mixed gas, enabling the tail gas to react completely.

[0041] When the amount of tail gas continues to increase, more oxygen is needed to mix with the tail gas. Continue to rotate the tail gas inlet main pipe 41. While the first tail gas inlet branch pipe 411 is connected with the first tail gas inlet 425 and the second tail gas inlet branch pipe 412 is connected with the second tail gas inlet 426, connect the third tail gas inlet branch pipe 413 with the third tail gas inlet 427. The tail gas enters the first chamber 422, the second chamber 423, and the third chamber 424 respectively, and enters the mixing furnace 3 through the first tail gas outlet pipe 43, the second tail gas outlet pipe 44, and the third tail gas outlet pipe 45. The tail gas in the first tail gas outlet pipe 43 is mixed with the oxygen in the first oxygen inlet branch pipe 511, the tail gas in the second tail gas outlet pipe 44 is mixed with the oxygen in the second oxygen inlet branch pipe 512, and the tail gas in the third tail gas outlet pipe 45 is mixed with the oxygen in the third oxygen inlet branch pipe 513. On the one hand, it raises the temperature of the mixed gas, and on the other hand, it ensures that there is sufficient oxygen in the mixed gas, enabling the tail gas to react completely.

[0042] The high-temperature flue gas after the reaction in the reaction furnace 1 heats the tail gas and oxygen, and the waste heat of the high-temperature flue gas after the reaction in the reaction furnace 1 is recovered, saving the energy consumption of the tail gas burning furnace and reducing the operation cost of the tail gas burning furnace.

[0043] Refer to Figure 4 and Figure 6, the exhaust gas outlet assembly 6 includes a first driving bevel gear 61, a second driving bevel gear 62, a third driving bevel gear 63 and a fan blade 69.

[0044] Referring to Figure 6 and Figure 7 , the first driving bevel gear 61 is rotatably mounted on one of the partition plates 421. A first driven bevel gear 611 is meshed with the first driving bevel gear 61. There are two first driven bevel gears 611, and the first driven bevel gear 611 is rotatably mounted in the exhaust gas outlet main pipe 42.

[0045] Referring to Figure 6 and Figure 7 , the second driving bevel gear 62 is rotatably mounted on the other partition plate 421. The first driving bevel gear 61 and the second driving bevel gear 62 are coaxial and fixedly connected. A second driven bevel gear 621 is meshed with the second driving bevel gear 62. There are two second driven bevel gears 621, and the second driven bevel gear 621 is rotatably mounted in the exhaust gas outlet main pipe 42.

[0046] The third driving bevel gear 63 is rotatably mounted in the exhaust gas outlet main pipe 42. A third driven bevel gear 631 is meshed with the third driving bevel gear 63. There are two third driven bevel gears 631, and the third driven bevel gear 631 is rotatably mounted in the exhaust gas outlet main pipe 42.

[0047] Referring to Figure 6 and Figure 8 , there are six fan blades 69. The six fan blades 69 are respectively rotatably mounted in the first oxygen inlet branch pipe 511, the second oxygen inlet branch pipe 512 and the third oxygen inlet branch pipe 513 one by one. The six fan blades 69 are respectively sleeved and coaxially fixed on the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44 and the third exhaust gas outlet pipe 45 one by one.

[0048] The rotation of the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44 and the third exhaust gas outlet pipe 45 drives the fan blade 69 to rotate. On the one hand, the rotation of the fan blade 69 accelerates the gas flow speed in the first oxygen inlet branch pipe 511, the second oxygen inlet branch pipe 512 and the third oxygen inlet branch pipe 513. On the other hand, the rotation of the fan blade 69 improves the diffusion speed of the exhaust gas and oxygen in the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44 and the third exhaust gas outlet pipe 45, and improves the mixing uniformity of the exhaust gas and oxygen.

[0049] Referring to Figure 6 and Figure 7, the exhaust gas outlet assembly 6 further includes a first telescopic rod 612, a second telescopic rod 622, a third telescopic rod 632, two first friction plates 613, two second friction plates 623, two third friction plates 633, a first return spring 614, a second return spring 624, and a third return spring 634.

[0050] The fixed end of the first telescopic rod 612 is fixedly installed on the inner wall of the first chamber 422. One of the first friction plates 613 is fixedly installed on the first exhaust gas pipe 43 and is slidably connected to the movable end of the first telescopic rod 612. The other first friction plate 613 is fixedly installed on the first driven bevel gear 611. The movable end of the first telescopic rod 612 and the first friction plate 613 are slidably connected by means of a chute and a slider. The chute is circular in shape, so that the movable end of the first telescopic rod 612 and the first friction plate 613 can rotate relative to each other.

[0051] The fixed end of the second telescopic rod 622 is fixedly installed on the inner wall of the second chamber 423. One of the second friction plates 623 is fixedly installed on the second exhaust gas pipe 44 and is slidably connected to the movable end of the second telescopic rod 622. The other second friction plate 623 is fixedly installed on the second driven bevel gear 621. The movable end of the second telescopic rod 622 and the second friction plate 623 are slidably connected by means of a chute and a slider. The chute is circular in shape, so that the movable end of the second telescopic rod 622 and the second friction plate 623 can rotate relative to each other.

[0052] The fixed end of the third telescopic rod 632 is fixedly installed on the inner wall of the third chamber 424. One of the third friction plates 633 is fixedly installed on the third exhaust gas pipe 45 and is slidably connected to the movable end of the third telescopic rod 632. The other third friction plate 633 is fixedly installed on the third driven bevel gear 631. The movable end of the third telescopic rod 632 and the third friction plate 633 are slidably connected by means of a chute and a slider. The chute is circular in shape, so that the movable end of the third telescopic rod 632 and the third friction plate 633 can rotate relative to each other.

[0053] The first return spring 614 is sleeved on the first exhaust gas pipe 43. One end of the first return spring 614 is fixedly connected to the inner wall of the first chamber 422, and the other end of the first return spring 614 is fixedly connected to the first exhaust gas pipe 43. The first return spring 614 always applies a force to the first exhaust gas pipe 43 in the direction away from the first driven bevel gear 611.

[0054] The second return spring 624 is sleeved on the second exhaust gas pipe 44. One end of the second return spring 624 is fixedly connected to the inner wall of the second chamber 423, and the other end of the second return spring 624 is fixedly connected to the second exhaust gas pipe 44. The second return spring 624 always applies a force to the second exhaust gas pipe 44 in the direction away from the second driven bevel gear 621.

[0055] The third return spring 634 is sleeved on the third exhaust gas outlet pipe 45. One end of the third return spring 634 is fixedly connected to the inner wall of the third chamber 424, and the other end of the third return spring 634 is fixedly connected to the third exhaust gas outlet pipe 45. The third return spring 634 always applies a force to the third exhaust gas outlet pipe 45 in a direction away from the third driven bevel gear 631.

[0056] Refer to Figure 4 、 Figure 5 and Figure 7 Figure, the exhaust gas outlet assembly 6 further includes a fourth telescopic rod 64, a threaded sleeve 65, an oil bladder 651, a first communication pipe 615, a second communication pipe 625, and a third communication pipe 635.

[0057] Refer to Figures 5 to 7 Figure, the fixed end of the fourth telescopic rod 64 is coaxially and fixedly installed on the exhaust gas intake main pipe 41. The fixed end of the fourth telescopic rod 64 and the movable end of the fourth telescopic rod 64 cannot rotate relative to each other in the axial direction. The movable end of the fourth telescopic rod 64 is coaxially and fixedly installed with a screw rod 641. The threaded sleeve 65 is coaxially and fixedly installed in the exhaust gas outlet main pipe 42. The screw rod 641 is threadedly connected in the threaded sleeve 65. The oil bladder 651 is embedded in the threaded sleeve 65. The oil bladder 651 abuts against the screw rod 641. The oil bladder 651 is filled with hydraulic oil.

[0058] One end of the first communication pipe 615 is communicated with the oil bladder 651, and the other end of the first communication pipe 615 is communicated with the rodless cavity of the fixed end of the first telescopic rod 612. A first pressure valve is installed on the first communication pipe 615. One end of the second communication pipe 625 is communicated with the oil bladder 651, and the other end of the second communication pipe 625 is communicated with the rodless cavity of the fixed end of the second telescopic rod 622. A second pressure valve is installed on the second communication pipe 625. One end of the third communication pipe 635 is communicated with the oil bladder 651, and the other end of the third communication pipe 635 is communicated with the rodless cavity of the fixed end of the third telescopic rod 632. A third pressure valve is installed on the third communication pipe 635. The preset pressure value of the first pressure valve is less than the preset pressure value of the second pressure valve, and the preset pressure value of the second pressure valve is less than the preset pressure value of the third pressure valve.

[0059] When rotating the exhaust gas inlet main pipe 41 to connect the first exhaust gas inlet branch pipe 411 with the first exhaust gas inlet 425, the fourth telescopic rod 64 rotates to drive the screw rod 641 to rotate. The screw rod 641 moves away from the exhaust gas inlet main pipe 41, squeezing the oil bladder 651. The hydraulic oil in the oil bladder 651 enters the first connecting pipe 615, the second connecting pipe 625, and the third connecting pipe 635. When the pressure value in the first connecting pipe 615 is greater than the preset value of the first pressure valve, the hydraulic oil in the first connecting pipe 615 enters the rodless cavity at the fixed end of the first telescopic rod 612, and the length of the first telescopic rod 612 elongates. The movable end of the first telescopic rod 612 pushes the first friction plate 613 to abut against another first friction plate 613. By the rotation of the first driving bevel gear 61, the first driven bevel gear 611 is driven to rotate. The rotation of the first driven bevel gear 611 drives the two first friction plates 613 to rotate. The rotation of the first friction plates 613 drives the first exhaust gas outlet pipe 43 to rotate. The rotation of the first exhaust gas outlet pipe 43 drives the fan blade 69 in the first oxygen inlet branch pipe 511 to rotate. The rotation of the fan blade 69 in the first oxygen inlet branch pipe 511 accelerates the flow rate of the mixed gas in the first oxygen inlet branch pipe 511 flowing into the mixing furnace 3.

[0060] When continuing to rotate the exhaust gas inlet main pipe 41 to connect the second exhaust gas inlet branch pipe 412 with the second exhaust gas inlet 426, the fourth telescopic rod 64 rotates to drive the screw rod 641 to rotate. The screw rod 641 continues to move away from the exhaust gas inlet main pipe 41, and the oil bladder 651 is continuously squeezed. When the pressure value in the second connecting pipe 625 is greater than the preset value of the second pressure valve, the hydraulic oil in the second connecting pipe 625 enters the rodless cavity at the fixed end of the second telescopic rod 622, and the length of the second telescopic rod 622 elongates. The movable end of the second telescopic rod 622 pushes the second friction plate 623 to abut against another second friction plate 623. By the rotation of the second driving bevel gear 62, the second driven bevel gear 621 is driven to rotate. The rotation of the second driven bevel gear 621 drives the two second friction plates 623 to rotate. The rotation of the second friction plates 623 drives the second exhaust gas outlet pipe 44 to rotate. The rotation of the second exhaust gas outlet pipe 44 drives the fan blade 69 in the second oxygen inlet branch pipe 512 to rotate. The rotation of the fan blade 69 in the second oxygen inlet branch pipe 512 accelerates the flow rate of the mixed gas in the second oxygen inlet branch pipe 512 flowing into the mixing furnace 3.

[0061] Similarly, when continuing to rotate the exhaust gas inlet main pipe 41 to connect the third exhaust gas inlet branch pipe 413 with the third exhaust gas inlet 427, by the rotation of the third driving bevel gear 63, the third exhaust gas outlet pipe 45 is driven to rotate. The rotation of the third exhaust gas outlet pipe 45 drives the fan blade 69 in the third oxygen inlet branch pipe 513 to rotate. The rotation of the fan blade 69 in the third oxygen inlet branch pipe 513 accelerates the flow rate of the mixed gas in the third oxygen inlet branch pipe 513 flowing into the mixing furnace 3.

[0062] By controlling the sequential abutment of the first friction plate 613, the second friction plate 623, and the third friction plate 633, the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44, and the third exhaust gas outlet pipe 45 are rotated in sequence, reducing the wear of the mechanical mechanism of the exhaust gas outlet assembly 6 and increasing the service life of the exhaust gas outlet assembly 6.

[0063] Refer to Figure 1 、 Figure 3 and Figure 5 Figure, the exhaust gas inlet assembly 4 further includes a first spur gear 47, a second spur gear 48, and a first motor 46.

[0064] The first spur gear 47 is coaxially sleeved and fixedly installed on the exhaust gas inlet main pipe 41. The second spur gear 48 is meshed and connected with the first spur gear 47. The output end of the first motor 46 is coaxially and fixedly connected with the second spur gear 48. The fixed end of the first motor 46 is fixedly installed on the support frame 8.

[0065] By controlling the rotation of the output shaft of the first motor 46 to drive the rotation of the second spur gear 48, the rotation of the second spur gear 48 to drive the rotation of the first spur gear 47, and the rotation of the first spur gear 47 to drive the rotation of the exhaust gas inlet main pipe 41, the operation convenience of the exhaust gas inlet assembly 4 is improved.

[0066] Refer to Figure 1 、 Figure 3 and Figure 4 Figure, the exhaust gas outlet assembly 6 further includes a third spur gear 67, a fourth spur gear 68, and a second motor 66.

[0067] The third spur gear 67 is coaxially and fixedly connected with the third driving bevel gear 63. The third spur gear 67 is rotatably installed in the exhaust gas outlet main pipe 42. The fourth spur gear 68 is meshed and connected with the third spur gear 67. The output end of the second motor 66 is coaxially and fixedly connected with the fourth spur gear 68. The output end of the second motor 66 passes through the exhaust gas outlet main pipe 42. The fixed end of the second motor 66 is fixedly installed on the support frame 8.

[0068] By controlling the rotation of the output shaft of the second motor 66 to drive the rotation of the fourth spur gear 68, the rotation of the fourth spur gear 68 to drive the rotation of the third spur gear 67, the rotation of the third spur gear 67 to drive the rotation of the third driving bevel gear 63, the rotation of the third driving bevel gear 63 to drive the second driving bevel gear 62 and the first driving bevel gear 61, and the rotation of the first driving bevel gear 61, the second driving bevel gear 62, and the third driving bevel gear 63 to drive the rotation of the first driven bevel gear 611, the second driven bevel gear 621, and the third driven bevel gear 631, and further driving the rotation of the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44, and the third exhaust gas outlet pipe 45, the operation convenience of the exhaust gas outlet assembly 6 is improved.

[0069] Reference Figure 4 and Figure 8

[0070]

[0071]

[0072]

[0073] There are six fixing plates 52, and the six fixing plates 52 are fixedly installed in the first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512, and the third oxygen intake branch pipe 513 in a one-to-one correspondence. The six fixing plates 52 are sleeved on the first tail gas outlet pipe 43, the second tail gas outlet pipe 44, and the third tail gas outlet pipe 45 in a one-to-one correspondence. The fixing plate 52 is provided with four first filtering holes 521, and a filter net 54 is fixedly installed in the first filtering holes 521. There are six sliding plates 53, and the six sliding plates 53 are slidably installed in the first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512, and the third oxygen intake branch pipe 513 in a one-to-one correspondence. The sliding plates 53 can slide along the axis direction in the first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512, and the third oxygen intake branch pipe 513 respectively. The six sliding plates 53 are sleeved and rotatably connected to the first tail gas outlet pipe 43, the second tail gas outlet pipe 44, and the third tail gas outlet pipe 45 in a one-to-one correspondence. The first tail gas outlet pipe 43, the second tail gas outlet pipe 44, and the third tail gas outlet pipe 45 are rotatably connected to the sliding plate 53 through a slider-chute matching manner. The first tail gas outlet pipe 43, the second tail gas outlet pipe 44, and the third tail gas outlet pipe 45 can all rotate relative to the sliding plate 53 in the axis direction. The sliding plate 53 is provided with four second filtering holes 531, and a filter net 54 is fixedly installed in the second filtering holes 531. The filter net 54 can filter the particulate impurities in the mixed gas. The sliding plate 53 abuts against the fixing plate 52, and the first filtering holes 521 and the second filtering holes 531 are arranged in a staggered manner.​In the initial state, the fixed plate 52 abuts against the sliding plate 53, and the first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512, and the third oxygen intake branch pipe 513 are in a sealed state. The exhaust gas intake main pipe 41 rotates to connect the first exhaust gas intake branch pipe 411 with the first exhaust gas intake port 425. The exhaust gas passes through the first exhaust gas intake port 425 and is discharged from the first exhaust gas outlet pipe 43. As the exhaust gas intake main pipe 41 rotates, the length of the first telescopic rod 612 extends. When the length of the first telescopic rod 612 extends, it can drive the first exhaust gas outlet pipe 43 to move towards the direction close to the first driven bevel gear 611. The movement of the first exhaust gas outlet pipe 43 drives the sliding plate 53 in the first oxygen intake branch pipe 511 to move away from the fixed plate 52. The sliding plate 53 in the first oxygen intake branch pipe 511 disengages from the fixed plate 52, and the first oxygen intake branch pipe 511 becomes an open state. Oxygen can pass through the first oxygen intake branch pipe 511 and be mixed with the exhaust gas discharged from the first exhaust gas outlet pipe 43, and finally enter the mixing furnace 3.

[0074] Similarly, as the exhaust gas intake main pipe 41 continues to rotate, the exhaust gas is discharged from the second exhaust gas outlet pipe 44. The continuous rotation of the exhaust gas intake main pipe 41 causes the length of the second telescopic rod 622 to extend. When the length of the second telescopic rod 622 extends, it can drive the sliding plate 53 in the second oxygen intake branch pipe 512 to disengage from the fixed plate 52, and the second oxygen intake branch pipe 512 becomes an open state. Oxygen can pass through the second oxygen intake branch pipe 512 and be mixed with the exhaust gas discharged from the second exhaust gas outlet pipe 44, and finally enter the mixing furnace 3.

[0075] Similarly, as the exhaust gas intake main pipe 41 further rotates, the exhaust gas is discharged from the third exhaust gas outlet pipe 45. The further rotation of the exhaust gas intake main pipe 41 causes the length of the third telescopic rod 632 to extend. When the length of the third telescopic rod 632 extends, it can drive the sliding plate 53 in the third oxygen intake branch pipe 513 to disengage from the fixed plate 52, and the third oxygen intake branch pipe 513 becomes an open state. Oxygen can pass through the third oxygen intake branch pipe 513 and be mixed with the exhaust gas discharged from the third exhaust gas outlet pipe 45, and finally enter the mixing furnace 3.

[0076] Through the setting of the fixed plate 52 and the sliding plate 53, the first oxygen intake pipe 511, the second oxygen intake pipe 512, and the third oxygen intake pipe 513 can be sequentially opened according to the gradually increasing oxygen demand, ensuring the effect of the matching mixture of oxygen and exhaust gas. By setting the filter screen 54 on the fixed plate 52 and the sliding plate 53, the content of particulate impurities in the mixed gas after the matching mixture of oxygen and exhaust gas is reduced, improving the burning effect.

[0077] The implementation principle of an off-gas incinerator for carbon disulfide production in an embodiment of this application is as follows: The off-gas enters the mixing furnace 3 through the off-gas inlet assembly 4 and the off-gas outlet assembly 6. At the same time, oxygen enters the mixing furnace 3 through the oxygen inlet assembly 5. The off-gas and oxygen are fully mixed in the mixing furnace 3, and the mixed gas enters the reaction furnace 1 for high-temperature reaction. The high-temperature flue gas generated after the reaction is discharged into the heat preservation furnace 2 through the first exhaust pipe 11, the second exhaust pipe 21, and the exhaust port 22. The high-temperature flue gas heats the inner cavity of the heat preservation furnace 2, increasing the temperature of the oxygen in the oxygen inlet assembly 5 and the mixed gas in the mixing furnace 3, reducing the heat energy required for the high-temperature reaction of the mixed gas in the reaction furnace 1, recovering the waste heat of the high-temperature flue gas after the reaction in the reaction furnace 1, saving the energy consumption of the off-gas incinerator, and reducing the operating cost of the off-gas incinerator.

[0078] The above are all the preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A tail gas burning furnace for carbon disulfide production, characterized in that, Including: A reaction furnace (1) for burning tail gas and oxygen. One end of the reaction furnace (1) is communicated with a first exhaust pipe (11). A heat preservation furnace (2) in which a second exhaust pipe (21) is fixedly installed. The second exhaust pipe (21) is communicated with the end of the first exhaust pipe (11) far away from the reaction furnace (1). Exhaust ports (22) are evenly arranged on the second exhaust pipe (21), and an air outlet (23) is arranged on the heat preservation furnace (2). A mixing furnace (3) fixedly installed in the heat preservation furnace (2). One end of the mixing furnace (3) is communicated with a third exhaust pipe (31). The end of the third exhaust pipe (31) far away from the mixing furnace (3) is communicated with the reaction furnace (1). The mixing furnace (3) is used for mixing tail gas and oxygen. A tail gas inlet assembly (4) installed on the mixing furnace (3) for introducing tail gas into the mixing furnace (3). An oxygen inlet assembly (5) including an oxygen inlet main pipe (51) arranged in the heat preservation furnace (2). The oxygen inlet main pipe (51) is wound around and fixedly installed on the outer side wall of the mixing furnace (3). Oxygen inlet ports (514), third oxygen inlet branch pipes (513), second oxygen inlet branch pipes (512) and first oxygen inlet branch pipes (511) are successively communicated and arranged on the oxygen inlet main pipe (51). The first oxygen inlet branch pipe (511) is the farthest from the oxygen inlet port (514). The oxygen inlet port (514) is arranged at the end of the oxygen inlet main pipe (51) extending out of the heat preservation furnace (2). The first oxygen inlet branch pipe (511), the second oxygen inlet branch pipe (512) and the third oxygen inlet branch pipe (513) are all communicated with the mixing furnace (3).

2. The tail gas burning furnace for carbon disulfide production according to claim 1, characterized in that, The tail gas inlet assembly (4) includes: A tail gas inlet main pipe (41) which passes through and is rotatably installed at the end of the mixing furnace (3) far away from the reaction furnace (1). First tail gas inlet branch pipes (411), second tail gas inlet branch pipes (412) and third tail gas inlet branch pipes (413) are successively communicated on the tail gas inlet main pipe (41). The first tail gas inlet branch pipe (411) is arranged at the end of the tail gas inlet main pipe (41) close to the reaction furnace (1), and the third tail gas inlet branch pipe (413) is arranged at the end of the tail gas inlet main pipe (41) far away from the reaction furnace (1). The tail gas outlet main pipe (42), the tail gas outlet main pipe (42) is coaxially sleeved on the tail gas inlet main pipe (41), the outer wall of the tail gas inlet main pipe (41) is in close fit with the inner wall of the tail gas outlet main pipe (42), the tail gas outlet main pipe (42) is fixedly installed in the mixing furnace (3), two partition plates (421) are coaxially and fixedly installed in the tail gas outlet main pipe (42), and the two partition plates (421) divide the tail gas outlet main pipe (42) into a first chamber (422), a second chamber (423) and a third chamber (424) in sequence. A first tail gas inlet (425) is formed through the inner wall of the first chamber (422), and the first tail gas inlet (425) can communicate with the first tail gas inlet branch pipe (411). A second tail gas inlet (426) is formed through the inner wall of the second chamber (423), and the second tail gas inlet (426) can communicate with the second tail gas inlet branch pipe (412). A third tail gas inlet (427) is formed through the inner wall of the third chamber (424), and the third tail gas inlet (427) can communicate with the third tail gas inlet branch pipe (413). A first tail gas outlet pipe (43) is penetrated through the outer wall of the first chamber (422), and one end of the first tail gas outlet pipe (43) is penetrated into the first oxygen inlet branch pipe (511). A second tail gas outlet pipe (44) is penetrated through the outer wall of the second chamber (423), and one end of the second tail gas outlet pipe (44) is penetrated into the second oxygen inlet branch pipe (512). A third tail gas outlet pipe (45) is penetrated through the outer wall of the third chamber (424), and one end of the third tail gas outlet pipe (45) is penetrated into the third oxygen inlet branch pipe (513).

3. The tail gas burning furnace for carbon disulfide production according to claim 2, characterized in that, A tail gas outlet assembly (6) is connected to the tail gas inlet assembly (4), and the tail gas outlet assembly (6) includes: A first driving bevel gear (61), the first driving bevel gear (61) is rotatably installed on one of the partition plates (421), a first driven bevel gear (611) is meshed and connected to the first driving bevel gear (61), and the first driven bevel gear (611) is rotatably installed in the tail gas outlet main pipe (42); A second driving bevel gear (62), the second driving bevel gear (62) is rotatably installed on the other partition plate (421), the first driving bevel gear (61) and the second driving bevel gear (62) are coaxially and fixedly connected, a second driven bevel gear (621) is meshed and connected to the second driving bevel gear (62), and the second driven bevel gear (621) is rotatably installed in the tail gas outlet main pipe (42); A third driving bevel gear (63), the third driving bevel gear (63) is rotatably installed in the tail gas outlet main pipe (42), a third driven bevel gear (631) is meshed and connected to the third driving bevel gear (63), and the third driven bevel gear (631) is rotatably installed in the tail gas outlet main pipe (42); A plurality of fan blades (69), the plurality of fan blades (69) are respectively rotatably installed in the first oxygen intake branch pipe (511), the second oxygen intake branch pipe (512) and the third oxygen intake branch pipe (513), and the plurality of fan blades (69) are respectively sleeved and coaxially fixed on the first exhaust gas outlet pipe (43), the second exhaust gas outlet pipe (44) and the third exhaust gas outlet pipe (45).

4. A tail gas incinerator for carbon disulfide production according to claim 3, characterized in that, The exhaust gas outlet assembly (6) further includes: A first telescopic rod (612), the fixed end of the first telescopic rod (612) is fixedly installed on the inner wall of the first chamber (422); A second telescopic rod (622), the fixed end of the second telescopic rod (622) is fixedly installed on the inner wall of the second chamber (423); A third telescopic rod (632), the fixed end of the third telescopic rod (632) is fixedly installed on the inner wall of the third chamber (424); Two first friction plates (613), one of the first friction plates (613) is fixedly installed on the first driven bevel gear (611), and the other first friction plate (613) is fixedly installed on the first exhaust gas outlet pipe (43) and is slidably connected to the movable end of the first telescopic rod (612); Two second friction plates (623), one of the second friction plates (623) is fixedly installed on the second driven bevel gear (621), and the other second friction plate (623) is fixedly installed on the second exhaust gas outlet pipe (44) and is slidably connected to the movable end of the second telescopic rod (622); Two third friction plates (633), one of the third friction plates (633) is fixedly installed on the third driven bevel gear (631), and the other third friction plate (633) is fixedly installed on the third exhaust gas outlet pipe (45) and is slidably connected to the movable end of the third telescopic rod (632); A first return spring (614), the first return spring (614) is sleeved on the first exhaust gas outlet pipe (43), one end of the first return spring (614) is fixedly connected to the inner wall of the first chamber (422), and the other end of the first return spring (614) is fixedly connected to the first exhaust gas outlet pipe (43); A second return spring (624), the second return spring (624) is sleeved on the second exhaust gas outlet pipe (44), one end of the second return spring (624) is fixedly connected to the inner wall of the second chamber (423), and the other end of the second return spring (624) is fixedly connected to the second exhaust gas outlet pipe (44); A third return spring (634), the third return spring (634) is sleeved on the third exhaust gas outlet pipe (45), one end of the third return spring (634) is fixedly connected to the inner wall of the third chamber (424), and the other end of the third return spring (634) is fixedly connected to the third exhaust gas outlet pipe (45).

5. The tail gas burning furnace for carbon disulfide production according to claim 4, characterized in that, The exhaust gas outlet assembly (6) further includes: The fourth telescopic rod (64), the fixed end of the fourth telescopic rod (64) is coaxially and fixedly installed on the exhaust gas inlet main pipe (41), and the movable end of the fourth telescopic rod (64) is coaxially and fixedly installed with a screw rod (641); The threaded sleeve (65), the threaded sleeve (65) is coaxially and fixedly installed in the exhaust gas outlet main pipe (42), and the screw rod (641) is threadedly connected in the threaded sleeve (65); The oil bladder (651), the oil bladder (651) is embedded in the threaded sleeve (65), and the oil bladder (651) abuts against the screw rod (641); The first communication pipe (615), one end of the first communication pipe (615) is communicated with the oil bladder (651), the other end of the first communication pipe (615) is communicated with the rodless cavity of the fixed end of the first telescopic rod (612), and a first pressure valve is installed on the first communication pipe (615); The second communication pipe (625), one end of the second communication pipe (625) is communicated with the oil bladder (651), the other end of the second communication pipe (625) is communicated with the rodless cavity of the fixed end of the second telescopic rod (622), and a second pressure valve is installed on the second communication pipe (625); The third communication pipe (635), one end of the third communication pipe (635) is communicated with the oil bladder (651), the other end of the third communication pipe (635) is communicated with the rodless cavity of the fixed end of the third telescopic rod (632), and a third pressure valve is installed on the third communication pipe (635).

6. The tail gas burning furnace for carbon disulfide production according to claim 3, characterized in that, The exhaust gas inlet assembly (4) further includes: The first spur gear (47), the first spur gear (47) is coaxially sleeved and fixedly installed on the exhaust gas inlet main pipe (41); The second spur gear (48), the second spur gear (48) is meshed and connected with the first spur gear (47); The first motor (46), the output end of the first motor (46) is coaxially and fixedly connected with the second spur gear (48).

7. The tail gas burning furnace for carbon disulfide production according to claim 6, characterized in that, The exhaust gas outlet assembly (6) further includes: The third spur gear (67), the third spur gear (67) is coaxially and fixedly connected with the third driving bevel gear (63), and the third spur gear (67) is rotatably installed in the exhaust gas outlet main pipe (42); The fourth spur gear (68), the fourth spur gear (68) is meshed and connected with the third spur gear (67); The second motor (66), the output end of the second motor (66) is coaxially and fixedly connected with the fourth spur gear (68), and the output end of the second motor (66) penetrates through the exhaust gas outlet main pipe (42).

8. A tail gas burning furnace for carbon disulfide production according to claim 5, characterized in that The oxygen inlet assembly (5) further includes: A plurality of fixing plates (52), and a plurality of the fixing plates (52) are fixedly installed in the first oxygen inlet branch pipe (511), the second oxygen inlet branch pipe (512), and the third oxygen inlet branch pipe (513) correspondingly. A plurality of the fixing plates (52) are sleeved on the first tail gas outlet pipe (43), the second tail gas outlet pipe (44), and the third tail gas outlet pipe (45) one by one. A first filtering hole (521) is formed in the fixing plate (52), and a filter screen (54) is fixedly installed in the first filtering hole (521); A plurality of sliding plates (53), and a plurality of the sliding plates (53) are slidably installed in the first oxygen inlet branch pipe (511), the second oxygen inlet branch pipe (512), and the third oxygen inlet branch pipe (513) correspondingly. A plurality of the sliding plates (53) are sleeved and rotatably connected to the first tail gas outlet pipe (43), the second tail gas outlet pipe (44), and the third tail gas outlet pipe (45) one by one. A second filtering hole (531) is formed in the sliding plate (53), and a filter screen (54) is fixedly installed in the second filtering hole (531). The sliding plate (53) abuts against the fixing plate (52), and the first filtering hole (521) and the second filtering hole (531) are arranged in a staggered manner.

9. The tail gas burning furnace for carbon disulfide production according to claim 1, characterized in that, It further includes a combustion-supporting gas inlet pipe (7), and the combustion-supporting gas inlet pipe (7) penetrates through the heat preservation furnace (2), and one end of the combustion-supporting gas inlet pipe (7) is communicated with the reaction furnace (1).

10. A tail gas burning furnace for carbon disulfide production according to claim 7, characterized in that, The reaction furnace (1) and the heat preservation furnace (2) are both fixedly installed on the support frame (8); the fixed ends of the first motor (46) and the second motor (66) are both fixedly installed on the support frame (8).

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