A tail gas burning furnace for carbon disulfide production

Abstract

The present application relates to a tail gas incineration furnace for carbon disulfide production, which relates to the technical field of sulfur chemical industry. The furnace comprises a reaction furnace for incinerating tail gas and oxygen, one end of which is connected to a first exhaust pipe; a second exhaust pipe fixedly installed in a heat preservation furnace, the second exhaust pipe being connected to an end of the first exhaust pipe away from the reaction furnace, and exhaust ports being evenly arranged on the second exhaust pipe; a mixing furnace fixedly installed in the heat preservation furnace, the mixing furnace being used to mix tail gas and oxygen; a tail gas intake assembly mounted on the mixing furnace, the tail gas intake assembly being used to pass tail gas into the mixing furnace; and an oxygen intake assembly mounted on the mixing furnace, the oxygen intake assembly being used to pass oxygen into the mixing furnace. The present application has the effect of saving energy consumption of the tail gas incineration furnace and reducing the operating cost of the tail gas incineration furnace.

Description

Technical Field

[0001] The present application relates to the technical field of sulfur chemical industry, and in particular to a tail gas incineration furnace for carbon disulfide production. Background Art

[0002] In the carbon disulfide production process, tail gas treatment is a critical step. This tail gas contains harmful components such as unreacted sulfur vapor, hydrogen sulfide, and organic sulfides. Direct discharge of this tail gas can severely pollute the environment and harm human health. Traditional tail gas treatment methods include alkaline solution absorption, activated carbon adsorption, condensation recovery, and high-temperature incineration. High-temperature incineration, with its high sulfide decomposition and conversion rate, has become the mainstream tail gas treatment solution.

[0003] When treating exhaust gas through an incinerator, the internal temperature of the incinerator needs to be continuously maintained at 800 to 1200 degrees Celsius. Therefore, fuel needs to be continuously replenished to maintain the high temperature, which consumes a lot of energy and has high operating costs.

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

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

[0006] The present application provides a tail gas incineration furnace for carbon disulfide production, which adopts the following technical solution:

[0007] A tail gas burning furnace for carbon disulfide production, comprising:

[0008] A reactor, the reactor being used to burn exhaust gas and oxygen, one end of the reactor being connected to a first exhaust pipe;

[0009] A holding furnace, wherein a second exhaust pipe is fixedly installed in the holding furnace, the second exhaust pipe is connected to an end of the first exhaust pipe away from the reaction furnace, exhaust ports are evenly opened on the second exhaust pipe, and an air outlet is opened on the holding furnace;

[0010] a mixing furnace, the mixing furnace being fixedly installed in the holding furnace, one end of the mixing furnace being connected to a third exhaust pipe, an end of the third exhaust pipe being remote from the mixing furnace being connected to the reaction furnace, and the mixing furnace being used to mix exhaust gas with oxygen;

[0011] An exhaust gas intake assembly, the exhaust gas intake assembly being mounted on the mixing furnace and used to pass exhaust gas into the mixing furnace;

[0012] An oxygen intake assembly includes an oxygen intake main pipe, which is arranged in the holding furnace and is wound around and fixedly installed on the outer side wall of the mixing furnace. The oxygen intake main pipe is sequentially connected with an oxygen inlet, 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 farthest from the oxygen inlet. The oxygen inlet is arranged at one end of the oxygen intake main pipe extending out of the holding furnace. The first oxygen intake branch pipe, the second oxygen intake branch pipe and the third oxygen intake branch pipe are all connected to the mixing furnace.

[0013] Optionally, the exhaust gas intake assembly includes:

[0014] An exhaust gas intake manifold, the exhaust gas intake manifold being passed through and rotatably mounted at an end of the mixing furnace away from the reactor, the exhaust gas intake manifold being sequentially connected to a first exhaust gas intake branch pipe, a second exhaust gas intake branch pipe, and a third exhaust gas intake branch pipe, the first exhaust gas intake branch pipe being arranged at an end of the exhaust gas intake manifold close to the reactor, and the third exhaust gas intake branch pipe being arranged at an end of the exhaust gas intake manifold away from the reactor;

[0015] The exhaust gas outlet manifold is coaxially sleeved on the exhaust gas inlet manifold, the outer wall of the exhaust gas inlet manifold is tightly fitted with the inner wall of the exhaust gas outlet manifold, the exhaust gas outlet manifold is fixedly installed in the mixing furnace, and two partitions are coaxially and fixedly installed in the exhaust gas outlet manifold. The two partitions divide the exhaust gas outlet manifold into a first chamber, a second chamber and a third chamber in sequence. The inner wall of the first chamber is penetrated by a first exhaust gas inlet, and the first exhaust gas inlet can be connected to the first exhaust gas inlet branch pipe. The inner wall of the second chamber is penetrated by a second exhaust gas inlet, and the second The exhaust gas inlet can be communicated with the second exhaust gas inlet branch pipe, the inner wall of the third chamber is provided with a third exhaust gas inlet, and the third exhaust gas inlet can be communicated with the third exhaust gas inlet branch pipe, the outer wall of the first chamber is provided with a first exhaust gas outlet pipe, one end of the first exhaust gas outlet pipe is provided in the first oxygen inlet branch pipe, the outer wall of the second chamber is provided with a second exhaust gas outlet pipe, one end of the second exhaust gas outlet pipe is provided in the second oxygen inlet branch pipe, the outer wall of the third chamber is provided with a third exhaust gas outlet pipe, one end of the third exhaust gas outlet pipe is provided in the third oxygen inlet branch pipe.

[0016] Optionally, the exhaust gas inlet assembly is connected to an exhaust gas outlet assembly, and the exhaust gas outlet assembly includes:

[0017] a first driving bevel gear, the first driving bevel gear being rotatably mounted on one of the partitions, the first driving bevel gear being meshedly connected to a first driven bevel gear, the first driven bevel gear being rotatably mounted in the exhaust gas outlet manifold;

[0018] a second driving bevel gear, the second driving bevel gear being rotatably mounted on the other partition plate, the first driving bevel gear being coaxial with and fixedly connected to the second driving bevel gear, the second driving bevel gear being meshedly connected to a second driven bevel gear, the second driven bevel gear being rotatably mounted in the exhaust gas outlet manifold;

[0019] a third driving bevel gear, the third driving bevel gear being rotatably mounted in the exhaust gas outlet manifold, the third driving bevel gear being meshedly connected to a third driven bevel gear, the third driven bevel gear being rotatably mounted in the exhaust gas outlet manifold;

[0020] Multiple fan blades 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 multiple fan blades are respectively correspondingly sleeved and coaxially fixed on the first exhaust outlet pipe, the second exhaust outlet pipe and the third exhaust outlet pipe.

[0021] Optionally, the exhaust gas outlet component further includes:

[0022] a first telescopic rod, wherein a fixed end of the first telescopic rod is fixedly mounted on the inner wall of the first chamber;

[0023] a second telescopic rod, wherein a fixed end of the second telescopic rod is fixedly mounted on the inner wall of the second chamber;

[0024] a third telescopic rod, wherein a fixed end of the third telescopic rod is fixedly mounted on the inner wall of the third chamber;

[0025] Two first friction plates, one of which is fixedly mounted on the first driven bevel gear, and the other of which is fixedly mounted on the first exhaust gas outlet pipe and slidably connected to the movable end of the first telescopic rod;

[0026] Two second friction plates, one of which is fixedly mounted on the second driven bevel gear, and the other is fixedly mounted on the second exhaust gas outlet pipe and slidably connected to the movable end of the second telescopic rod;

[0027] Two third friction plates, one of which is fixedly mounted on the third driven bevel gear, and the other is fixedly mounted on the third exhaust gas outlet pipe and slidably connected to the movable end of the third telescopic rod;

[0028] a first return spring, the first return spring being sleeved on the first exhaust gas outlet pipe, one end of the first return spring being fixedly connected to the inner wall of the first chamber, and the other end of the first return spring being fixedly connected to the first exhaust gas outlet pipe;

[0029] a second return spring, the second return spring being sleeved on the second exhaust gas outlet pipe, one end of the second return spring being fixedly connected to the inner wall of the second chamber, and the other end of the second return spring being fixedly connected to the second exhaust gas outlet pipe;

[0030] A 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.

[0031] Optionally, the exhaust gas outlet component further includes:

[0032] a fourth telescopic rod, wherein a fixed end of the fourth telescopic rod is coaxially and fixedly mounted on the exhaust gas intake manifold, and a screw is coaxially and fixedly mounted on a movable end of the fourth telescopic rod;

[0033] a threaded sleeve, the threaded sleeve being coaxially and fixedly mounted in the exhaust gas outlet manifold, the screw being threadedly connected in the threaded sleeve;

[0034] an oil bag, the oil bag being embedded in the threaded sleeve and abutting against the screw;

[0035] a first communicating tube, one end of which is in communication with the oil bag, the other end of which is in communication with the rodless cavity at the fixed end of the first telescopic rod, and a first pressure valve being installed on the first communicating tube;

[0036] a second communicating pipe, one end of which is in communication with the oil bag, the other end of which is in communication with the rodless cavity at the fixed end of the second telescopic rod, and a second pressure valve being installed on the second communicating pipe;

[0037] A third communicating pipe, one end of which is communicated with the oil bag, and the other end of which is communicated with the rodless cavity at the fixed end of the third telescopic rod, and a third pressure valve is installed on the third communicating pipe.

[0038] Optionally, the exhaust gas intake assembly further includes:

[0039] a first spur gear, the first spur gear being coaxially sleeved and fixedly mounted on the exhaust gas intake manifold;

[0040] a second spur gear, the second spur gear being meshed and connected with the first spur gear;

[0041] A first motor, wherein an output end of the first motor is coaxial with and fixedly connected to the second spur gear.

[0042] Optionally, the exhaust gas outlet component further includes:

[0043] a third spur gear, the third spur gear being coaxial with and fixedly connected to the third driving bevel gear, and the third spur gear being rotatably mounted in the exhaust gas outlet manifold;

[0044] a fourth spur gear, the fourth spur gear being meshed and connected with the third spur gear;

[0045] The second motor, the output end of the second motor is coaxial with and fixedly connected to the fourth spur gear, and the output end of the second motor is arranged in the exhaust gas outlet main pipe.

[0046] Optionally, the oxygen intake assembly further includes:

[0047] a plurality of fixing plates, each of which is fixedly mounted in the first oxygen inlet branch pipe, the second oxygen inlet branch pipe, and the third oxygen inlet branch pipe; each of the fixing plates is sleeved on the first exhaust outlet pipe, the second exhaust outlet pipe, and the third exhaust outlet pipe in a one-to-one correspondence; each fixing plate is provided with a first filter hole, and a filter is fixedly mounted in the first filter hole;

[0048] Multiple sliding plates are correspondingly slidably installed in the first oxygen intake branch pipe, the second oxygen intake branch pipe and the third oxygen intake branch pipe. Multiple sliding plates are correspondingly sleeved and rotatably connected to the first exhaust outlet pipe, the second exhaust outlet pipe and the third exhaust outlet pipe. A second filter hole is opened on the sliding plate, and a filter net is fixedly installed in the second filter hole. The sliding plate abuts against the fixed plate, and the first filter hole and the second filter hole are staggered.

[0049] Optionally, a combustion-supporting gas inlet pipe is further included, wherein the combustion-supporting gas inlet pipe is arranged in the insulation furnace, and one end of the combustion-supporting gas inlet pipe is connected to the reaction furnace.

[0050] Optionally, the reaction furnace and the insulation furnace are both fixedly mounted on a support frame; the first motor fixed end and the second motor fixed end are both fixedly mounted on the support frame.

[0051] In summary, this application includes at least one of the following beneficial technical effects:

[0052] 1. The tail gas enters the mixing furnace through the tail gas inlet assembly and the tail gas outlet assembly, and 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 reactor for a high-temperature reaction. The high-temperature tail gas generated after the reaction is discharged into the holding 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 holding furnace, thereby increasing the temperature of the mixed gas in the mixing furnace, reducing the heat energy required for the high-temperature reaction of the mixed gas in the reactor, and recovering the waste heat of the high-temperature tail gas after the reaction in the reactor, thereby saving energy consumption of the tail gas incineration furnace and reducing the operating cost of the tail gas incineration furnace.

[0053] 2. When the amount of oxygen required gradually increases, oxygen enters the mixing furnace through the first oxygen intake branch pipe, the second oxygen intake branch pipe, and the third oxygen intake branch pipe in sequence, extending the flow time of oxygen in the oxygen intake main pipe, thereby extending the heating time of oxygen in the holding furnace, enhancing the preheating effect of oxygen, and improving the waste heat recovery efficiency of high-temperature exhaust gas;

[0054] 3. When the exhaust gas intake manifold rotates, the amount of exhaust gas entering the mixing furnace can be controlled by setting the first exhaust gas inlet, the second exhaust gas inlet and the third exhaust gas inlet; and when the exhaust gas intake manifold rotates, the amount of oxygen entering the mixing furnace can be adaptively controlled based on the change in the exhaust gas amount by setting the fixed plate and the sliding plate, thereby ensuring the proper mixing of oxygen and exhaust gas and improving the burning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 It is a structural diagram of an embodiment of the present application;

[0056] Figure 2 It is a schematic diagram for showing the internal structure of an embodiment of the present application;

[0057] Figure 3 It is a schematic diagram used to show the internal structure of the holding furnace;

[0058] Figure 4 It is a cross-sectional view showing part of the structure of the oxygen intake manifold;

[0059] Figure 5 It is a schematic diagram for showing the structure of the exhaust gas intake manifold;

[0060] Figure 6 It is a schematic diagram for showing the structure of the exhaust gas outlet main pipe;

[0061] Figure 7 It is a schematic diagram for showing part of the structure of the exhaust gas outlet component;

[0062] Figure 8 It is a schematic diagram used to show the structure of the fixed plate and the sliding plate.

[0063] Description of reference numerals:

[0064] 1. Reactor; 11. First exhaust pipe;

[0065] 2. Holding furnace; 21. Second exhaust pipe; 22. Exhaust port; 23. Gas outlet;

[0066] 3. Mixing furnace; 31. Third exhaust pipe;

[0067] 4. Exhaust gas intake assembly; 41. Exhaust gas intake manifold; 411. First exhaust gas intake branch pipe; 412. Second exhaust gas intake branch pipe; 413. Third exhaust gas intake branch pipe; 42. Exhaust gas outlet manifold; 421. Baffle; 422. First chamber; 423. Second chamber; 424. Third chamber; 425. First exhaust gas inlet port; 426. Second exhaust gas inlet port; 427. Third exhaust gas inlet port; 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;

[0068] 5. Oxygen intake assembly; 51. Oxygen intake main pipe; 511. First oxygen intake branch pipe; 512. Second oxygen intake branch pipe; 513. Third oxygen intake branch pipe; 514. Oxygen inlet port; 52. Fixed plate; 521. First filter hole; 53. Sliding plate; 531. Second filter hole; 54. Filter screen;

[0069] 6. Exhaust 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 sac; 66. Second motor; 67. Third spur gear; 68. Fourth spur gear; 69. Fan blades;

[0070] 7. Combustion gas inlet pipe;

[0071] 8. Support frame. DETAILED DESCRIPTION

[0072] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0073] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 therefore cannot be understood as limiting 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 number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0074] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0075] The following is combined with Figures 1 to 8 This application is described in further detail.

[0076] The embodiments of the present application disclose a tail gas incineration furnace for carbon disulfide production.

[0077] Reference Figures 1 to 3 A tail gas burning furnace for carbon disulfide production includes a reaction furnace 1, an insulation furnace 2, a support frame 8, a mixing furnace 3, a tail gas inlet component 4, an oxygen inlet component 5, a tail gas outlet component 6 and a combustion-supporting gas inlet pipe 7.

[0078] Reference Figure 1 and Figure 2 The reactor 1 is used to burn the exhaust gas and oxygen to complete the exhaust gas treatment. The reactor 1 is a prior art and will not be described in detail here. One end of the reactor 1 is connected to a first exhaust pipe 11, and the number of the first exhaust pipe 11 can be multiple.

[0079] Reference Figures 1 to 3The outer wall of the insulation furnace 2 has insulation performance. A second exhaust pipe 21 is fixedly installed in the insulation furnace 2. 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 away from the reaction furnace 1. An exhaust port 22 is opened on the second exhaust pipe 21. The number of the exhaust port 22 can be multiple. An outlet 23 is opened on the insulation furnace 2.

[0080] Reference Figure 2 and Figure 3 The mixing furnace 3 is fixedly installed in the insulation furnace 2. One end of the mixing furnace 3 is connected to the third exhaust pipe 31. The end of the third exhaust pipe 31 away from the mixing furnace 3 is connected to the reaction furnace 1. The mixing furnace 3 is used to mix the exhaust gas and oxygen. The outer wall of the mixing furnace 3 has good thermal conductivity.

[0081] The tail gas inlet assembly 4 is mounted on the mixing furnace 3 and is used to pass the tail gas into the mixing furnace 3. The oxygen inlet assembly 5 is mounted on the mixing furnace 3 and is used to pass oxygen into the mixing furnace 3. The tail gas outlet assembly 6 is connected to the tail gas inlet assembly 4. The reaction furnace 1 and the holding furnace 2 are both fixedly mounted on a support frame 8.

[0082] The combustion-supporting gas inlet pipe 7 is arranged in the insulation 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 the combustion-supporting gas pump, and the combustion-supporting gas pump passes the combustion-supporting gas into the reaction furnace 1 through the combustion-supporting gas inlet pipe 7.

[0083] The tail gas enters the mixing furnace 3 through the tail gas inlet component 4 and the tail gas outlet component 6, and at the same time, oxygen enters the mixing furnace 3 through the oxygen inlet component 5. The tail gas and oxygen are fully mixed in the mixing furnace 3, and the mixed gas enters the reactor 1 for a high-temperature reaction. The high-temperature flue gas generated after the reaction is discharged into the insulation 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 insulation furnace 2, thereby increasing the temperature of the oxygen in the oxygen inlet component 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 reactor 1, and recovering the waste heat of the high-temperature flue gas after the reaction in the reactor 1, saving the energy consumption of the tail gas incineration furnace, and reducing the operating cost of the tail gas incineration furnace.

[0084] Reference Figures 1 to 3 The oxygen intake assembly 5 includes an oxygen intake manifold 51 , a first oxygen intake branch pipe 511 , a second oxygen intake branch pipe 512 , a third oxygen intake branch pipe 513 and an oxygen intake port 514 .

[0085] Reference Figures 2 to 4The oxygen intake main pipe 51 is arranged in the insulation furnace 2. The oxygen intake main pipe 51 is wound and fixedly installed on the outer wall of the mixing furnace 3. The oxygen intake port 514, the third oxygen intake branch pipe 513, the second oxygen intake branch pipe 512 and the first oxygen intake branch pipe 511 are arranged in sequence on the oxygen intake main pipe 51. The first oxygen intake branch pipe 511 is farthest from the oxygen intake port 514. The oxygen intake port 514 is arranged at one end of the oxygen intake main pipe 51 extending out of the insulation furnace 2. The oxygen intake port 514 is connected to an oxygen pump, which can pass oxygen into the oxygen intake main pipe 51. The first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512 and the third oxygen intake branch pipe 513 are all connected to the mixing furnace 3.

[0086] When oxygen is introduced into the mixing furnace 3, it enters the oxygen intake manifold 51. Depending on the oxygen demand, the oxygen in the oxygen intake manifold 51 can sequentially enter the mixing furnace 3 through the first oxygen intake branch 511, the second oxygen intake branch 512, and the third oxygen intake branch 513. During the oxygen introduction process, the high-temperature flue gas heats the inner cavity of the holding furnace 2, thereby increasing the temperature of the oxygen in the oxygen intake manifold 51. This reduces the heat energy required for the high-temperature reaction of the mixed gas in the reactor 1, and recovers the waste heat from the high-temperature flue gas after the reaction in the reactor 1, thereby saving energy consumption in the tail gas incinerator and reducing the operating costs of the tail gas incinerator.

[0087] Reference Figure 2 and Figure 4 The exhaust gas intake assembly 4 includes an exhaust gas intake manifold 41 and an exhaust gas outlet manifold 42 .

[0088] Reference Figure 4 and Figure 5 The exhaust gas intake main pipe 41 is passed through and rotatably installed at the end of the mixing furnace 3 away from the reactor 1. The exhaust gas intake main pipe 41 is connected in sequence with the first exhaust gas intake branch pipe 411, the second exhaust gas intake branch pipe 412 and the third exhaust gas intake branch pipe 413. The first exhaust gas intake branch pipe 411 is arranged at the end of the exhaust gas intake main pipe 41 close to the reactor 1, and the third exhaust gas intake branch pipe 413 is arranged at the end of the exhaust gas intake main pipe 41 away from the reactor 1.

[0089] Reference Figure 4 and Figure 6 The exhaust gas outlet manifold 42 is coaxially sleeved on the exhaust gas inlet manifold 41, and the outer wall of the exhaust gas inlet manifold 41 is tightly fitted with the inner wall of the exhaust gas outlet manifold 42. The exhaust gas outlet manifold 42 is fixedly installed in the mixing furnace 3. Two partitions 421 are coaxially and fixedly installed in the exhaust gas outlet manifold 42. The two partitions 421 divide the exhaust gas outlet manifold 42 into a first chamber 422, a second chamber 423 and a third chamber 424 in sequence.

[0090] Reference Figure 6 and Figure 7 A first exhaust gas inlet 425 is provided through the inner wall of the first chamber 422, and the first exhaust gas inlet 425 can be communicated with the first exhaust gas inlet branch 411. A second exhaust gas inlet 426 is provided through the inner wall of the second chamber 423, and the second exhaust gas inlet 426 can be communicated with the second exhaust gas inlet branch 412. A third exhaust gas inlet 427 is provided through the inner wall of the third chamber 424, and the third exhaust gas inlet 427 can be communicated with the third exhaust gas inlet branch 413. The first exhaust gas inlet 425, the second exhaust gas inlet 426 and the third exhaust gas inlet 427 are all in the shape of long strips. The length of the first exhaust gas inlet 425 is greater than that of the second exhaust gas inlet 426, and the length of the second exhaust gas inlet 426 is greater than that of the third exhaust gas inlet 427.

[0091] A first exhaust gas outlet pipe 43 is provided on the outer wall of the first chamber 422. Two first exhaust gas outlet pipes 43 are provided. One end of the first exhaust gas outlet pipe 43 is provided in the first oxygen inlet branch pipe 511. A second exhaust gas outlet pipe 44 is provided on the outer wall of the second chamber 423. Two second exhaust gas outlet pipes 44 are provided. One end of the second exhaust gas outlet pipe 44 is provided in the second oxygen inlet branch pipe 512. A third exhaust gas outlet pipe 45 is provided on the outer wall of the third chamber 424. Two third exhaust gas outlet pipes 45 are provided. One end of the third exhaust gas outlet pipe 45 is provided in the third oxygen inlet branch pipe 513.

[0092] In the initial state, the inner wall of the exhaust gas inlet main pipe 41 is tightly fitted with the inner wall of the exhaust gas outlet main pipe 42, and the first exhaust gas inlet branch pipe 411, the second exhaust gas inlet branch pipe 412 and the third exhaust gas inlet branch pipe 413 are all blocked by the inner wall of the exhaust gas outlet main pipe 42. When exhaust gas needs to be introduced, the exhaust gas inlet main pipe 41 is rotated to connect the first exhaust gas inlet branch pipe 411 with the first exhaust gas inlet port 425. The exhaust gas enters the first chamber 422 through the first exhaust gas inlet branch pipe 411 and the first exhaust gas inlet port 425, and enters the mixing furnace 3 through the first exhaust gas outlet pipe 43. The exhaust gas in the first exhaust gas outlet pipe 43 is mixed with the oxygen in the first oxygen inlet branch pipe 511.

[0093] When the amount of exhaust gas increases, more oxygen is needed to mix with the exhaust gas, and the exhaust gas intake main pipe 41 continues to rotate. On the basis of the first exhaust gas intake branch pipe 411 being connected with the first exhaust gas inlet port 425, the second exhaust gas intake branch pipe 412 is gradually connected with the second exhaust gas inlet port 426, and the exhaust gas enters the first chamber 422 and the second chamber 423 respectively. The exhaust gas in the first exhaust gas outlet pipe 43 is mixed with the oxygen in the first oxygen intake branch pipe 511 and discharged into the mixing furnace 3, and the exhaust gas in the second exhaust gas outlet pipe 44 is mixed with the oxygen in the second oxygen intake branch pipe 512 and discharged into the mixing furnace 3. On the one hand, the temperature of the mixed gas is increased, and on the other hand, the amount of oxygen in the mixed gas is guaranteed to be sufficient, so that the exhaust gas can react completely.

[0094] When the exhaust gas volume continues to increase, more oxygen is needed to mix with the exhaust gas, and the exhaust gas intake manifold 41 is continued to rotate. The first exhaust gas intake branch pipe 411 is connected to the first exhaust gas intake port 425 and the second exhaust gas intake branch pipe 412 is connected to the second exhaust gas intake port 426. At the same time, the third exhaust gas intake branch pipe 413 is connected to the third exhaust gas intake port 427. The exhaust gas enters the first chamber 422, the second chamber 423 and the third chamber 424 respectively, and passes through the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 43 and the third exhaust gas outlet pipe 43. The tail gas outlet pipe 44 and the third tail gas outlet pipe 45 enter the mixing furnace 3, 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, the temperature of the mixed gas is increased, and on the other hand, the amount of oxygen in the mixed gas is guaranteed to be sufficient so that the tail gas can react completely.

[0095] The tail gas and oxygen are heated by the high-temperature flue gas after the reaction in the reactor 1, and the waste heat of the high-temperature flue gas after the reaction in the reactor 1 is recovered, thereby saving the energy consumption of the tail gas incineration furnace and reducing the operation cost of the tail gas incineration furnace.

[0096] Reference 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 .

[0097] Reference Figure 6 and Figure 7 The first driving bevel gear 61 is rotatably mounted on one of the partitions 421 , and the first driven bevel gear 61 is meshedly connected to the first driving bevel gear 61 . Two first driven bevel gears 611 are provided, and the first driven bevel gears 611 are rotatably mounted in the exhaust gas outlet manifold 42 .

[0098] Reference Figure 6 and Figure 7 The second driving bevel gear 62 is rotatably mounted on another partition 421. The first driving bevel gear 61 is coaxial with the second driving bevel gear 62 and is fixedly connected. The second driving bevel gear 62 is meshed with a second driven bevel gear 621. Two second driven bevel gears 621 are provided. The second driven bevel gear 621 is rotatably mounted in the exhaust gas outlet manifold 42.

[0099] The third driving bevel gear 63 is rotatably mounted in the exhaust gas outlet manifold 42 . The third driving bevel gear 63 is meshedly connected with a third driven bevel gear 631 . Two third driven bevel gears 631 are provided and are rotatably mounted in the exhaust gas outlet manifold 42 .

[0100] Reference Figure 6 and Figure 8 There are six fan blades 69, which are 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 respectively. 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.

[0101] The fan blades 69 are driven to rotate by rotating the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44 and the third exhaust gas outlet pipe 45. The rotation of the fan blades 69 accelerates the gas flow rate 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 one hand, and improves the diffusion rate 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 on the other hand, thereby improving the mixing uniformity of the exhaust gas and oxygen.

[0102] Reference Figure 6 and Figure 7 The exhaust gas outlet assembly 6 also 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.

[0103] The fixed end of the first telescopic rod 612 is fixedly mounted on the inner wall of the first chamber 422, one of the first friction plates 613 is fixedly mounted on the first exhaust gas outlet pipe 43 and is slidingly connected to the movable end of the first telescopic rod 612, and the other first friction plate 613 is fixedly mounted on the first driven bevel gear 611. The movable end of the first telescopic rod 612 and the first friction plate 613 are slidingly connected by means of a slide groove slider, and the slide groove is in a circular ring shape, so that the movable end of the first telescopic rod 612 and the first friction plate 613 can rotate relative to each other.

[0104] The fixed end of the second telescopic rod 622 is fixedly mounted on the inner wall of the second chamber 423, one of the second friction plates 623 is fixedly mounted on the second exhaust gas outlet pipe 44 and is slidingly connected to the movable end of the second telescopic rod 622, and the other second friction plate 623 is fixedly mounted on the second driven bevel gear 621. The movable end of the second telescopic rod 622 and the second friction plate 623 are slidingly connected by means of a slide groove slider, and the slide groove is in a circular ring shape, so that the movable end of the second telescopic rod 622 and the second friction plate 623 can rotate relative to each other.

[0105] The fixed end of the third telescopic rod 632 is fixedly mounted on the inner wall of the third chamber 424, one of the third friction plates 633 is fixedly mounted on the third exhaust gas outlet pipe 45 and is slidingly connected to the movable end of the third telescopic rod 632, and the other third friction plate 633 is fixedly mounted on the third driven bevel gear 631. The movable end of the third telescopic rod 632 and the third friction plate 633 are slidingly connected by means of a slide groove slider, and the slide groove is in a circular ring shape, so that the movable end of the third telescopic rod 632 and the third friction plate 633 can rotate relative to each other.

[0106] 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. The first return spring 614 always applies a force to the first exhaust gas outlet pipe 43 in the direction away from the first driven bevel gear 611.

[0107] 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. The second return spring 624 always applies a force to the second exhaust gas outlet pipe 44 in the direction away from the second driven bevel gear 621.

[0108] 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 the direction away from the third driven bevel gear 631.

[0109] Reference Figure 4 、 Figure 5 and Figure 7 The exhaust gas outlet assembly 6 further includes a fourth telescopic rod 64 , a threaded sleeve 65 , an oil bag 651 , a first connecting pipe 615 , a second connecting pipe 625 and a third connecting pipe 635 .

[0110] Reference Figures 5 to 7 The fixed end of the fourth telescopic rod 64 is coaxial and fixedly mounted on the exhaust gas intake manifold 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 coaxial and fixedly mounted with a screw 641. The threaded sleeve 65 is coaxial and fixedly mounted in the exhaust gas outlet manifold 42. The screw 641 is threadedly connected in the threaded sleeve 65. The oil bag 651 is embedded in the threaded sleeve 65. The oil bag 651 abuts against the screw 641. The oil bag 651 is filled with hydraulic oil.

[0111] One end of the first connecting tube 615 is connected to the oil sac 651, and the other end is connected to the rodless cavity at the fixed end of the first telescopic rod 612. A first pressure valve is installed on the first connecting tube 615. One end of the second connecting tube 625 is connected to the oil sac 651, and the other end is connected to the rodless cavity at the fixed end of the second telescopic rod 622. A second pressure valve is installed on the second connecting tube 625. One end of the third connecting tube 635 is connected to the oil sac 651, and the other end is connected to the rodless cavity at the fixed end of the third telescopic rod 632. A third pressure valve is installed on the third connecting tube 635. The preset pressure value of the first pressure valve is lower than the preset pressure value of the second pressure valve, and the preset pressure value of the second pressure valve is lower than the preset pressure value of the third pressure valve.

[0112] When the exhaust gas intake manifold 41 is rotated to connect the first exhaust gas intake branch 411 with the first exhaust gas intake port 425, the fourth telescopic rod 64 rotates and drives the screw 641 to rotate. The screw 641 moves in the direction away from the exhaust gas intake manifold 41, and the oil bag 651 is squeezed. The hydraulic oil in the oil bag 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 is extended. The movable end 612 pushes the first friction plate 613 to abut against another first friction plate 613, and the first active bevel gear 61 rotates to drive the first driven bevel gear 611 to rotate. The first driven bevel gear 611 rotates to drive the two first friction plates 613 to rotate. The first friction plate 613 rotates to drive the first exhaust gas outlet pipe 43 to rotate. The first exhaust gas outlet pipe 43 rotates to drive the fan blades 69 in the first oxygen inlet branch pipe 511 to rotate. The fan blades 69 in the first oxygen inlet branch pipe 511 rotate to accelerate the flow rate of the mixed gas in the first oxygen inlet branch pipe 511 to flow into the mixing furnace 3.

[0113] When the exhaust gas intake manifold 41 is continued to be rotated to connect the second exhaust gas intake branch pipe 412 with the second exhaust gas intake port 426, the fourth telescopic rod 64 rotates and drives the screw 641 to rotate. The screw 641 continues to move away from the exhaust gas intake manifold 41, and the oil bag 651 continues to be 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, the length of the second telescopic rod 622 is extended, and the movable end of the second telescopic rod 622 pushes the second friction plate 623 and the second friction plate 623 to contact with the second friction plate 623. The other second friction plate 623 is in contact, and the second active bevel gear 62 rotates to drive the second driven bevel gear 621 to rotate. The second driven bevel gear 621 rotates to drive the two second friction plates 623 to rotate. The second friction plate 623 rotates to drive the second exhaust gas outlet pipe 44 to rotate. The second exhaust gas outlet pipe 44 rotates to drive the fan blades 69 in the second oxygen intake branch pipe 512 to rotate. The fan blades 69 in the second oxygen intake branch pipe 512 rotate to accelerate the flow rate of the mixed gas in the second oxygen intake branch pipe 512 to the mixing furnace 3.

[0114] Similarly, when the exhaust gas intake main pipe 41 continues to rotate to connect the third exhaust gas intake branch pipe 413 with the third exhaust gas inlet port 427, the third active bevel gear 63 rotates to drive the third exhaust gas outlet pipe 45 to rotate, and the third exhaust gas outlet pipe 45 rotates to drive the fan blades 69 in the third oxygen intake branch pipe 513 to rotate, and the fan blades 69 in the third oxygen intake branch pipe 513 rotate to accelerate the flow rate of the mixed gas in the third oxygen intake branch pipe 513 to flow into the mixing furnace 3.

[0115] By controlling the first friction plate 613, the second friction plate 623 and the third friction plate 633 to abut in sequence, the first exhaust outlet pipe 43, the second exhaust outlet pipe 44 and the third exhaust outlet pipe 45 are rotated in sequence, thereby reducing the wear of the mechanical structure of the exhaust outlet component 6 and improving the service life of the exhaust outlet component 6.

[0116] Reference Figure 1 、 Figure 3 and Figure 5 The exhaust gas intake assembly 4 further includes a first spur gear 47 , a second spur gear 48 and a first motor 46 .

[0117] The first spur gear 47 is coaxially sleeved and fixedly mounted on the exhaust gas intake manifold 41 , the second spur gear 48 is meshedly connected to the first spur gear 47 , the output end of the first motor 46 is coaxially and fixedly connected to the second spur gear 48 , and the fixed end of the first motor 46 is fixedly mounted on the support frame 8 .

[0118] By controlling the output shaft of the first motor 46 to rotate, the second spur gear 48 is driven to rotate, the second spur gear 48 rotates to drive the first spur gear 47 to rotate, and the first spur gear 47 rotates to drive the exhaust gas intake manifold 41 to rotate, thereby improving the operating convenience of the exhaust gas intake component 4.

[0119] Reference Figure 1 、 Figure 3 and Figure 4 The exhaust gas outlet assembly 6 further includes a third spur gear 67 , a fourth spur gear 68 and a second motor 66 .

[0120] The third spur gear 67 is coaxial with the third active bevel gear 63 and fixedly connected. The third spur gear 67 is rotatably installed in the exhaust gas outlet manifold 42. The fourth spur gear 68 is meshed with the third spur gear 67. The output end of the second motor 66 is coaxial with the fourth spur gear 68 and fixedly connected. The output end of the second motor 66 is passed through the exhaust gas outlet manifold 42. The fixed end of the second motor 66 is fixedly mounted on the support frame 8.

[0121] By controlling the output shaft of the second motor 66 to rotate, the fourth spur gear 68 is driven to rotate, the fourth spur gear 68 rotates to drive the third spur gear 67 to rotate, the third spur gear 67 rotates to drive the third driving bevel gear 63 to rotate, the third driving bevel gear 63 rotates to drive the second driving bevel gear 62 and the first driving bevel gear 61, and the first driving bevel gear 61, the second driving bevel gear 62 and the third driving bevel gear 63 are rotated to drive the first driven bevel gear 611, the second driven bevel gear 621 and the third driven bevel gear 631 to rotate, thereby driving the first exhaust outlet pipe 43, the second exhaust outlet pipe 44 and the third exhaust outlet pipe 45 to rotate, thereby improving the operating convenience of the exhaust outlet assembly 6.

[0122] Reference Figure 4 and Figure 8 The oxygen intake assembly 5 further includes a fixed plate 52 and a sliding plate 53 .

[0123] There are six fixed plates 52, which 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 fixed plates 52 are correspondingly sleeved on the first exhaust gas outlet pipe 43, the second exhaust gas outlet pipe 44 and the third exhaust gas outlet pipe 45. The fixed plates 52 are provided with first filter holes 521, and there are four first filter holes 521. A filter net 54 is fixedly installed in the first filter hole 521.

[0124] Six sliding plates 53 are provided, 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 in the first oxygen intake branch pipe 511, the second oxygen intake branch pipe 512 and the third oxygen intake branch pipe 513 along the axis direction.

[0125] The six sliding plates 53 are correspondingly mounted and rotatably connected to the first exhaust outlet pipe 43, the second exhaust outlet pipe 44 and the third exhaust outlet pipe 45. The first exhaust outlet pipe 43, the second exhaust outlet pipe 44 and the third exhaust outlet pipe 45 are all rotatably connected to the sliding plate 53 by means of slider grooves. The first exhaust outlet pipe 43, the second exhaust outlet pipe 44 and the third exhaust outlet pipe 45 can all rotate relative to the sliding plate 53 in the axial direction. A second filter hole 531 is provided on the sliding plate 53, and four second filter holes 531 are provided. A filter screen 54 is fixedly installed in the second filter hole 531, and the filter screen 54 can filter particulate impurities in the mixed gas. The sliding plate 53 abuts against the fixed plate 52, and the first filter hole 521 and the second filter hole 531 are staggered.

[0126] 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 manifold 41 rotates to connect the first exhaust gas intake branch pipe 411 with the first exhaust gas inlet port 425, and the exhaust gas passes through the first exhaust gas inlet port 425 and is discharged from the first exhaust gas outlet pipe 43. As the exhaust gas intake manifold 41 rotates, the length of the first telescopic rod 612 is extended. When the length of the first telescopic rod 612 is extended, It can drive the first exhaust gas outlet pipe 43 to move in 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 in the direction away from the fixed plate 52. The sliding plate 53 in the first oxygen intake branch pipe 511 is separated from the fixed plate 52, and the first oxygen intake branch pipe 511 becomes open. Oxygen can pass through the first oxygen intake branch pipe 511 and mix with the exhaust gas discharged from the first exhaust gas outlet pipe 43, and finally enter the mixing furnace 3.

[0127] Similarly, as the exhaust gas intake manifold 41 continues to rotate, the exhaust gas is discharged from the second exhaust gas outlet pipe 44, and the continued rotation of the exhaust gas intake manifold 41 causes the second telescopic rod 622 to extend. When the second telescopic rod 622 extends, it can drive the sliding plate 53 in the second oxygen intake branch pipe 512 to separate from the fixed plate 52, and the second oxygen intake branch pipe 512 becomes open. Oxygen can pass through the second oxygen intake branch pipe 512 and mix with the exhaust gas discharged from the second exhaust outlet pipe 44, and finally enter the mixing furnace 3.

[0128] Similarly, as the exhaust gas intake manifold 41 further rotates, the exhaust gas is discharged from the third exhaust gas outlet pipe 45, and the further rotation of the exhaust gas intake manifold 41 causes the third telescopic rod 632 to extend. When the third telescopic rod 632 extends, it can drive the sliding plate 53 in the third oxygen intake branch pipe 513 to separate from the fixed plate 52, and the third oxygen intake branch pipe 513 becomes open. Oxygen can pass through the third oxygen intake branch pipe 513 and mix with the exhaust gas discharged from the third exhaust outlet pipe 45, and finally enter the mixing furnace 3.

[0129] By setting 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 opened in sequence according to the gradual increase in oxygen demand, thereby ensuring the effect of adaptive mixing of oxygen and exhaust gas; by setting the filter 54 on the fixed plate 52 and the sliding plate 53, the particulate impurity content in the mixed gas after the adaptive mixing of oxygen and exhaust gas is reduced, thereby improving the burning effect.

[0130] The implementation principle of the tail gas incineration furnace for carbon disulfide production in the embodiment of the present application is as follows: the tail gas enters the mixing furnace 3 through the tail gas inlet component 4 and the tail gas outlet component 6, and at the same time, oxygen enters the mixing furnace 3 through the oxygen inlet component 5. The tail gas and oxygen are fully mixed in the mixing furnace 3, and the mixed gas enters the reactor 1 for a high-temperature reaction. The high-temperature flue gas generated after the reaction is discharged into the insulation 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 insulation furnace 2, thereby increasing the temperature of the oxygen in the oxygen inlet component 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 reactor 1, and recovering the waste heat of the high-temperature flue gas after the reaction in the reactor 1, thereby saving the energy consumption of the tail gas incineration furnace and reducing the operating cost of the tail gas incineration furnace.

[0131] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A tail gas incineration furnace for carbon disulfide production, characterized in that: include: A reaction furnace (1), the reaction furnace (1) is used to burn exhaust gas and oxygen, and one end of the reaction furnace (1) is connected to a first exhaust pipe (11); A heat preservation furnace (2), wherein a second exhaust pipe (21) is fixedly installed in the heat preservation furnace (2), the second exhaust pipe (21) is connected to an end of the first exhaust pipe (11) away from the reaction furnace (1), exhaust ports (22) are uniformly provided on the second exhaust pipe (21), and an air outlet (23) is provided on the heat preservation furnace (2); A mixing furnace (3), the mixing furnace (3) being fixedly installed in the holding furnace (2), one end of the mixing furnace (3) being connected to a third exhaust pipe (31), the end of the third exhaust pipe (31) being away from the mixing furnace (3) being connected to the reaction furnace (1), and the mixing furnace (3) being used to mix exhaust gas with oxygen; An exhaust gas intake assembly (4), the exhaust gas intake assembly (4) being mounted on the mixing furnace (3), and the exhaust gas intake assembly (4) being used to pass exhaust gas into the mixing furnace (3); An oxygen intake assembly (5) includes an oxygen intake main pipe (51), the oxygen intake main pipe (51) is arranged in the insulation furnace (2), the oxygen intake main pipe (51) is wound around and fixedly installed on the outer wall of the mixing furnace (3), the oxygen intake port (514), the third oxygen intake branch pipe (513), the second oxygen intake branch pipe (512) and the first oxygen intake branch pipe (511) are sequentially connected and arranged on the oxygen intake main pipe (51), the first oxygen intake branch pipe (511) is farthest from the oxygen intake port (514), the oxygen intake port (514) is arranged at one end of the oxygen intake main pipe (51) extending from the insulation furnace (2), and the first oxygen intake branch pipe (511), the second oxygen intake branch pipe (512) and the third oxygen intake branch pipe (513) are all connected to the mixing furnace (3); The exhaust gas intake assembly (4) comprises: An exhaust gas intake main pipe (41), the exhaust gas intake main pipe (41) is passed through and rotatably mounted on an end of the mixing furnace (3) away from the reaction furnace (1), the exhaust gas intake main pipe (41) is sequentially connected with a first exhaust gas intake branch pipe (411), a second exhaust gas intake branch pipe (412) and a third exhaust gas intake branch pipe (413), the first exhaust gas intake branch pipe (411) is arranged at an end of the exhaust gas intake main pipe (41) close to the reaction furnace (1), and the third exhaust gas intake branch pipe (413) is arranged at an end of the exhaust gas intake main pipe (41) away from the reaction furnace (1); An exhaust gas outlet main pipe (42) is coaxially sleeved on the exhaust gas inlet main pipe (41), the outer wall of the exhaust gas inlet main pipe (41) is tightly fitted with the inner wall of the exhaust gas outlet main pipe (42), the exhaust gas outlet main pipe (42) is fixedly installed in the mixing furnace (3), two partitions (421) are coaxially and fixedly installed in the exhaust gas outlet main pipe (42), the two partitions (421) divide the exhaust gas outlet main pipe (42) into a first chamber (422), a second chamber (423) and a third chamber (424) in sequence, the first chamber (422) is provided with a first exhaust gas inlet port (425) through the inner wall thereof, the first exhaust gas inlet port (425) can be communicated with the first exhaust gas inlet branch pipe (411), the second chamber (423) is provided with a second exhaust gas inlet port (426) through the inner wall thereof, The second tail gas inlet (426) can be communicated with the second tail gas inlet branch (412); the inner wall of the third chamber (424) is provided with a third tail gas inlet (427); the third tail gas inlet (427) can be communicated with the third tail gas inlet branch (413); a first tail gas outlet pipe (43) is provided on the outer wall of the first chamber (422); one end of the first tail gas outlet pipe (43) is provided in the first oxygen inlet branch (511); a second tail gas outlet pipe (44) is provided on the outer wall of the second chamber (423); one end of the second tail gas outlet pipe (44) is provided in the second oxygen inlet branch (512); a third tail gas outlet pipe (45) is provided on the outer wall of the third chamber (424); one end of the third tail gas outlet pipe (45) is provided in the third oxygen inlet branch (513); In the initial state, the inner wall of the tail gas inlet main pipe (41) is tightly fitted with the inner wall of the tail gas outlet main pipe (42), and 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 the tail gas needs to be introduced, the tail gas inlet main pipe (41) is rotated to connect the first tail gas inlet branch pipe (411) with the first tail gas inlet port (425). The tail gas enters the first chamber (422) through the first tail gas inlet branch pipe (411) and the first tail gas inlet port (425), and 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). When the amount of tail gas increases, more oxygen is needed to mix with the tail gas, and the tail gas intake main pipe (41) is continuously rotated. On the basis of the first tail gas intake branch pipe (411) being connected to the first tail gas intake port (425), the second tail gas intake branch pipe (412) is gradually connected to the second tail gas intake port (426), and 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 intake branch pipe (511) and discharged into the mixing furnace (3), and the tail gas in the second tail gas outlet pipe (44) is mixed with the oxygen in the second oxygen intake branch pipe (512) and discharged into the mixing furnace (3). On the one hand, the temperature of the mixed gas is increased, and on the other hand, the amount of oxygen in the mixed gas is ensured to be sufficient, so that the tail gas can react completely. When the amount of exhaust gas continues to increase, more oxygen is needed to mix with the exhaust gas, and the exhaust gas intake main pipe (41) continues to rotate. The first exhaust gas intake branch pipe (411) is connected to the first exhaust gas intake port (425) and the second exhaust gas intake branch pipe (412) is connected to the second exhaust gas intake port (426). At the same time, the third exhaust gas intake branch pipe (413) is connected to the third exhaust gas intake port (427). The exhaust gas enters the first chamber (422), the second chamber (423) and the third chamber (424) respectively, and passes through the first exhaust gas outlet pipe (43), The second tail gas outlet pipe (44) and the third tail gas outlet pipe (45) enter the mixing furnace (3), 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), which, on the one hand, increases the temperature of the mixed gas and, on the other hand, ensures that the amount of oxygen in the mixed gas is sufficient so that the tail gas can react completely.

2. The tail gas incineration furnace for carbon disulfide production according to claim 1, characterized in that: The exhaust gas inlet assembly (4) is connected to an exhaust gas outlet assembly (6), and the exhaust gas outlet assembly (6) comprises: a first driving bevel gear (61), the first driving bevel gear (61) being rotatably mounted on one of the partitions (421), the first driven bevel gear (611) being meshedly connected to the first driving bevel gear (61), and the first driven bevel gear (611) being rotatably mounted in the exhaust gas outlet manifold (42); a second driving bevel gear (62), the second driving bevel gear (62) being rotatably mounted on the other partition plate (421), the first driving bevel gear (61) and the second driving bevel gear (62) being coaxial and fixedly connected, a second driven bevel gear (621) being meshedly connected to the second driving bevel gear (62), and the second driven bevel gear (621) being rotatably mounted in the exhaust gas outlet manifold (42); a third driving bevel gear (63), the third driving bevel gear (63) being rotatably mounted in the exhaust gas outlet manifold (42), the third driven bevel gear (631) being meshedly connected to the third driving bevel gear (63), the third driven bevel gear (631) being rotatably mounted in the exhaust gas outlet manifold (42); A plurality of fan blades (69), wherein the plurality of fan blades (69) are 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), and the plurality of fan blades (69) are respectively and correspondingly sleeved and coaxially fixed on the first tail gas outlet pipe (43), the second tail gas outlet pipe (44), and the third tail gas outlet pipe (45).

3. The tail gas incineration furnace for carbon disulfide production according to claim 2, characterized in that: The exhaust gas outlet assembly (6) further includes: a first telescopic rod (612), wherein a fixed end of the first telescopic rod (612) is fixedly mounted on an inner wall of the first chamber (422); a second telescopic rod (622), wherein a fixed end of the second telescopic rod (622) is fixedly mounted on the inner wall of the second chamber (423); a third telescopic rod (632), the fixed end of the third telescopic rod (632) being fixedly mounted on the inner wall of the third chamber (424); Two first friction plates (613), one of which is fixedly mounted on the first driven bevel gear (611), and the other of which is fixedly mounted on the first exhaust gas outlet pipe (43) and slidably connected to the movable end of the first telescopic rod (612); Two second friction plates (623), one of which is fixedly mounted on the second driven bevel gear (621), and the other of which is fixedly mounted on the second exhaust gas outlet pipe (44) and 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 mounted on the third driven bevel gear (631), and the other third friction plate (633) is fixedly mounted 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) being sleeved on the first exhaust gas outlet pipe (43), one end of the first return spring (614) being fixedly connected to the inner wall of the first chamber (422), and the other end of the first return spring (614) being fixedly connected to the first exhaust gas outlet pipe (43); a second return spring (624), the second return spring (624) being sleeved on the second exhaust gas outlet pipe (44), one end of the second return spring (624) being fixedly connected to the inner wall of the second chamber (423), and the other end of the second return spring (624) being 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).

4. The tail gas incineration furnace for carbon disulfide production according to claim 3, characterized in that: The exhaust gas outlet assembly (6) further includes: a fourth telescopic rod (64), the fixed end of the fourth telescopic rod (64) being coaxially and fixedly mounted on the exhaust gas intake manifold (41), and the movable end of the fourth telescopic rod (64) being coaxially and fixedly mounted with a screw (641); a threaded sleeve (65), the threaded sleeve (65) being coaxially and fixedly mounted in the exhaust gas outlet manifold (42), the screw (641) being threadedly connected in the threaded sleeve (65); An oil sac (651), the oil sac (651) being embedded in the threaded sleeve (65), the oil sac (651) being in contact with the screw rod (641); a first communicating tube (615), one end of the first communicating tube (615) being in communication with the oil bag (651), the other end of the first communicating tube (615) being in communication with the rodless cavity of the fixed end of the first telescopic rod (612), and a first pressure valve being installed on the first communicating tube (615); a second communicating tube (625), one end of the second communicating tube (625) being in communication with the oil bag (651), the other end of the second communicating tube (625) being in communication with the rodless cavity of the fixed end of the second telescopic rod (622), and a second pressure valve being installed on the second communicating tube (625); A third communicating tube (635), one end of which is in communication with the oil bag (651), and the other end of which is in communication with the rodless cavity of the fixed end of the third telescopic rod (632), and a third pressure valve is installed on the third communicating tube (635).

5. The tail gas incineration furnace for carbon disulfide production according to claim 2, characterized in that: The exhaust gas intake assembly (4) further includes: a first spur gear (47), the first spur gear (47) being coaxially sleeved and fixedly mounted on the exhaust gas intake manifold (41); a second spur gear (48), the second spur gear (48) being meshedly connected with the first spur gear (47); A first motor (46), wherein an output end of the first motor (46) is coaxially and fixedly connected to the second spur gear (48).

6. The tail gas incineration furnace for carbon disulfide production according to claim 5, characterized in that: The exhaust gas outlet assembly (6) further includes: a third spur gear (67), the third spur gear (67) being coaxial with and fixedly connected to the third active bevel gear (63), and the third spur gear (67) being rotatably mounted in the exhaust gas outlet manifold (42); a fourth spur gear (68), the fourth spur gear (68) being meshedly connected to the third spur gear (67); A second motor (66), an output end of the second motor (66) is coaxially and fixedly connected to the fourth spur gear (68), and the output end of the second motor (66) is arranged in the exhaust gas outlet main pipe (42).

7. The tail gas incineration furnace for carbon disulfide production according to claim 4, characterized in that: The oxygen intake assembly (5) further comprises: A plurality of fixing plates (52), wherein the plurality of 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), and the plurality of 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; a first filter hole (521) is formed on the fixing plate (52), and a filter screen (54) is fixedly installed in the first filter hole (521); A plurality of sliding plates (53) are correspondingly mounted in the first oxygen intake branch pipe (511), the second oxygen intake branch pipe (512) and the third oxygen intake branch pipe (513). The plurality of sliding plates (53) are correspondingly sleeved and rotatably connected to the first exhaust gas outlet pipe (43), the second exhaust gas outlet pipe (44) and the third exhaust gas outlet pipe (45). A second filter hole (531) is provided on the sliding plate (53). A filter net (54) is fixedly mounted in the second filter hole (531). The sliding plate (53) abuts against the fixed plate (52). The first filter hole (521) and the second filter hole (531) are staggered.

8. The tail gas incineration furnace for carbon disulfide production according to claim 1, characterized in that: It also includes a combustion-supporting gas inlet pipe (7), which is arranged in the heat-insulating furnace (2), and one end of the combustion-supporting gas inlet pipe (7) is in communication with the reaction furnace (1).

9. The tail gas incineration furnace for carbon disulfide production according to claim 6, characterized in that: The reaction furnace (1) and the insulation furnace (2) are both fixedly mounted on a support frame (8); the fixed end of the first motor (46) and the fixed end of the second motor (66) are both fixedly mounted on the support frame (8).

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