Ammonia tail gas molecular sieve adsorption device for triazole synthesis

Abstract

The invention discloses an ammonia tail gas molecular sieve adsorption device for triazole synthesis, and relates to the technical field of tail gas treatment, a molecular sieve is assembled in a tank, a heating piece is arranged in the molecular sieve, a condensation piece is mounted below the molecular sieve, and a collecting tank is arranged below the condensation piece. Tail gas enters the device through the inlet of the tank body, ammonia gas is adsorbed by the molecular sieve when the tail gas flows through the molecular sieve, and adsorbed gas is smoothly discharged from the outlet of the tank body; after the molecular sieve adsorbs ammonia gas to reach a saturated state, the ammonia gas is heated, the ammonia gas is desorbed and separated, the desorbed ammonia gas flows downwards to the condensing part and is cooled by the condensing part to be converted into ammonia water, the confluence part quickly converges the condensed ammonia water into the collecting tank, and the recovered ammonia water is guided out of the tank body through the collecting pipe, so that subsequent cyclic utilization is facilitated. Ammonia adsorption and recovery are integrated, ammonia tail gas is efficiently treated by means of a coherent process of molecular sieve adsorption, heating desorption and condensation recovery, environmental pollution caused by direct emission of ammonia is avoided, ammonia water resources are effectively recovered, and the comprehensive production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of tail gas treatment, in particular to an ammonia tail gas molecular sieve adsorption device for triazole synthesis. BACKGROUND

[0002] Triazole is an important heterocyclic compound and is widely used in the fields of medicine, pesticide, material synthesis and the like. Greenization and resource utilization of the industrial production process of triazole have become one of the core demands of the industry development.

[0003] In the synthesis reaction process of triazole, due to the characteristics of the reaction system, tail gas mainly composed of ammonia gas is inevitably generated. If the tail gas is directly discharged into the external environment, double problems will be caused: on the one hand, serious air pollution will be caused - ammonia gas is an alkaline gas with strong irritating odor, which not only directly stimulates the respiratory mucosa of the human body, endangers the health of the surrounding residents, but also reacts with acidic substances in the air to generate ammonium salt particles, aggravates air environmental problems such as haze, and destroys the ecological balance; on the other hand, ammonia gas itself is a chemical resource with high recycling value and is widely used in the fields of chemical fertilizer production, refrigeration, organic synthesis and the like, and direct discharge means waste of valuable resources.

[0004] Based on the above problems, in order to realize harmless treatment and resource recycling of the tail gas, the application specifically provides an ammonia tail gas molecular sieve adsorption device for triazole synthesis. SUMMARY

[0005] The application provides an ammonia tail gas molecular sieve adsorption device for triazole synthesis, which is used to solve the problems in the background art.

[0006] To achieve the above purpose, the application is implemented by the following technical scheme: An ammonia tail gas molecular sieve adsorption device for triazole synthesis, comprising a tank body, a molecular sieve is arranged in the tank body, a heating element is arranged in the molecular sieve, a condensing element is arranged below the molecular sieve, the condensing element is fixedly connected with the tank body, a collecting groove is arranged below the condensing element, the collecting groove is fixedly connected with the tank body, an outlet is arranged at the upper end of the tank body, and an inlet is arranged at the lower end of the tank body.

[0007] Preferably, a funnel-shaped flow collecting element is connected to the upper side of the collecting groove, and the upper end edge of the flow collecting element is fixedly connected with the tank body. The collecting groove is communicated with a flow collecting pipe, one end of the flow collecting pipe penetrates through the tank body and is connected to the outside of the tank body.

[0008] Preferably, the heating element and the condensing element are fixedly connected with a support, and the support is fixedly connected with the inner wall of the tank body.

[0009] Preferably, the current collecting member is provided with air holes, and the edges of the air holes are provided with convex ridges.

[0010] Preferably, the inlet is provided with a filter assembly, the filter assembly comprises a filter shell, an exhaust gas inlet is arranged on the outer wall of the filter shell, a filter core is arranged in the filter shell, the filter core is in a cylindrical shape, and the exhaust gas inlet is communicated with the outer side of the filter core. An exhaust gas outlet is arranged at one end of the filter shell, and the exhaust gas outlet is communicated with the inner side of the filter core. The exhaust gas inlet is connected to an exhaust gas input pipeline, and the exhaust gas outlet is connected to the inlet.

[0011] Preferably, the other end of the filter shell is connected with a recovery shell, and the inner cavity of the recovery shell is communicated with the filter shell. One end of the filter core located in the recovery shell is in a sealed state, and the one end of the filter core located in the recovery shell is movably and sealingly connected to the inner wall of the recovery shell. A telescopic rod member is fixedly connected to the outer side of the recovery shell, and the output end of the telescopic rod member penetrates the recovery shell and is rotationally connected to the one end of the filter core located in the recovery shell. A gas rod is fixedly connected to the outer side of the recovery shell, the power input end of the gas rod slidingly penetrates the recovery shell and is rotationally connected to the one end of the filter core located in the recovery shell, the output port of the gas rod is communicated with a gas ring through a gas pipe, the gas ring is fixedly connected to the recovery shell, and the gas ring is located at the outer periphery of the filter core; the gas ring can be inflated by gas, and the gas ring slowly leaks gas.

[0012] Preferably, a spiral is arranged on the inner wall of the filter shell, one end of the filter core close to the exhaust gas outlet is provided with a rotating ring, the rotating ring is engaged with the spiral on the inner wall of the filter shell, the rotating ring rotates when the rotating ring moves along the axial direction of the filter shell under the influence of the spiral, a ratchet member is arranged between the filter core and the rotating ring, the ratchet member is fixedly connected to the filter core, and the ratchet member is unidirectionally engaged with the inner side of the rotating ring.

[0013] Preferably, a recovery bin is arranged on the lower side of the filter shell and the recovery shell, the filter shell, the recovery shell and the recovery bin are fixedly connected, the recovery bin is communicated with the recovery shell, a baffle is arranged at the communication position of the recovery bin and the recovery shell, the baffle is rotationally connected to a fixed rod, the fixed rod is fixedly connected to the recovery shell, a torsional spring is arranged between the fixed rod and the baffle, and a limiting piece for limiting the limit position of the baffle is arranged on the fixed rod.

[0014] Preferably, the tank body is provided with an inspection opening, the inspection opening is provided with a sealing assembly, the sealing assembly comprises a fixed plate, a plurality of fixed holes are arranged on the fixed plate, and the fixed plate is fixed by screw locking the fixed holes and the tank body. A plurality of clamping grooves are arranged on the fixed plate. A clamping plate is rotatably connected to the center of the fixed plate, and a stop block corresponding to the clamping groove is arranged at the edge of the clamping plate and can be clamped in the clamping groove. A driving cavity is arranged at the center of the clamping plate, a center shaft is arranged in the driving cavity, a driving gear is rotatably connected to the center shaft, a tooth rod is arranged outside the driving gear, and the tooth rod is engaged with the driving gear. A sliding groove is arranged on the stop block at the side of the clamping plate, a follower rod is slidably connected in the sliding groove, and the follower rod is fixedly connected with the tooth rod. A wedge-shaped block is arranged on the follower rod, and the wedge-shaped block can abut against the clamping groove. A fixed boss is arranged in the clamping plate, a closing plate is fixedly connected to the fixed boss, and the closing plate is located above the driving gear and the tooth rod. The tooth rod is slidably connected to the side wall of the fixed boss. A limiting clamping groove is arranged on the stop block. A limiting clamping rod corresponding to the limiting clamping groove is inserted into the clamping groove.

[0015] Preferably, a driving groove is arranged at the center of the driving gear. A driving handle is movably inserted into the driving groove.

[0016] Compared with the prior art, the present application has at least the following beneficial effects: The ammonia tail gas generated by the synthesis of triazole enters the device through the inlet at the lower end of the tank body. When the tail gas flows upward through the molecular sieve, the ammonia is efficiently adsorbed by the molecular sieve. The treated gas that meets the standard is discharged from the outlet at the upper end of the tank body. When the molecular sieve reaches the saturation state of adsorbing ammonia, the heating element in the molecular sieve is started to heat the molecular sieve, so that the adsorbed ammonia is desorbed. The desorbed ammonia flows downward to the condensing element and is converted into ammonia water after being cooled by the condensing element. The funnel-shaped flow converging element quickly collects the condensed ammonia water and guides it into the collection tank below. The collection tank directs the recovered ammonia water out of the tank body through the flow collecting pipe for subsequent recycling. The ammonia adsorption and recovery are integrated, and the coherent process of molecular sieve adsorption, heating desorption and condensation recovery efficiently treats the ammonia tail gas, avoids environmental pollution caused by direct discharge of ammonia, recovers ammonia water resources, and reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the main structure of the present application; Figure 2 The figure is a schematic diagram of the flow converging element structure of the present application; Figure 3 The figure is a schematic diagram of the connection structure of the heating and condensing element of the present application; Figure 4 The figure is a schematic diagram of the filter assembly structure of the present application; Figure 5 The figure is a schematic diagram of the internal structure of the filter shell of the present application; Figure 6 It is the internal structure schematic view of the recycling shell of the present application; Figure 7 It is the baffle connecting structure schematic view of the present application; Figure 8 It is the sealing assembly structure schematic view of the present application; Figure 9 It is the clamping plate structure schematic view of the present application; Figure 10 It is the driving gear structure schematic view of the present application.

[0018] In the figure: 1, tank body; 2, molecular sieve; 3, uniform distribution plate; 4, heating piece; 5, condensing piece; 6, flow collecting piece; 7, collecting groove; 8, inlet; 9, outlet; 10, access hole; 11, support leg; 12, flow collecting pipe; 13, air hole; 14, support; 15, air rod; 16, air pipe; 17, air ring; 18, fixed rod; 19, baffle; 20, filter shell; 21, tail gas inlet; 22, tail gas outlet; 23, recycling bin; 24, recycling shell; 25, telescopic rod piece; 26, rotating ring; 27, ratchet piece; 28, filter core; 29, center shaft; 30, fixed hole; 31, fixed plate; 32, clamping plate; 33, driving gear; 34, clamping groove; 35, toothed rod; 36, follower rod; 37, wedge block; 38, driving handle; 39, closing plate; 40, limiting clamping rod; 41, fixed boss; 42, sliding groove; 43, limiting clamping groove; 44, driving cavity; 45, driving groove; 46, stop block. DETAILED DESCRIPTION

[0019] In the present application, the description such as "first", "second" and the like is only for the purpose of description, and does not mean to particularly indicate the order or sequence, nor to limit the present application, which is merely to distinguish the filter assembly or operation described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present application.

[0020] Example 1: please refer to Figures 1-3The utility model relates to a kind of ammonia gas tail gas molecular sieve adsorption device for triazole synthesis, including jar body 1, the molecular sieve 2 is arranged in the jar body 1, the heating piece 4 is arranged in the molecular sieve 2, the condensing piece 5 is arranged below the molecular sieve 2, the condensing piece 5 is fixedly connected with jar body 1, the collecting tank 7 is arranged below the condensing piece 5, the collecting tank 7 is fixedly connected with jar body 1, the outlet 9 is arranged on the upper end of jar body 1, the inlet 8 is arranged on the lower end of jar body 1.

[0021] Funnel-shaped converging piece 6 is connected on the collecting tank 7 upside, the converging piece 6 upper end edge is fixedly connected with jar body 1; The collecting tank 7 is communicated with the collecting pipe 12, and one end of the collecting pipe 12 penetrates through the jar body 1 and is connected to the outside of the jar body 1.

[0022] The heating piece 4 and the condensing piece 5 are fixedly connected to the support 14, and the support 14 is fixedly connected to the inner wall of the jar body 1.

[0023] The converging piece 6 is provided with air hole 13, and the air hole 13 is provided with convex ridge at edge.

[0024] The lower end of the jar body 1 is provided with a supporting leg 11 for supporting the jar body 1. The lower side of the molecular sieve 2 is provided with a uniform distribution plate 3 for splitting the tail gas, so that the tail gas entering the molecular sieve 2 is in uniform and sufficient contact with the molecular sieve 2.

[0025] The working principle and beneficial effects of the above scheme are as follows: The ammonia tail gas generated by the triazole synthesis enters the device through the inlet 8 at the lower end of the tank body 1. When the tail gas flows upwards through the molecular sieve 2, the ammonia is efficiently adsorbed by the molecular sieve 2. The treated gas that meets the standards is discharged from the outlet 9 at the upper end of the tank body. When the molecular sieve adsorbs ammonia to saturation, the device switches to the regeneration mode: at this time, the control valves (not shown in the figure) at the lower end of the tank body and the upper end of the outlet 9 are closed, and the external negative pressure recovery system (such as a vacuum pump or an induced draft fan) connected to the end of the collecting pipe 12 is started. The heating element 4 in the molecular sieve 2 is started to heat and desorb. Under the forced traction of the negative pressure at the bottom, the resolved hot ammonia gas flows downward through the molecular sieve layer, overcoming the thermal buoyancy. When the high-temperature ammonia gas flows through the condensing element 5, it is rapidly cooled. The low-temperature environment significantly improves the solubility of ammonia. Subsequently, the cooled ammonia gas rushes into the collection tank 7 pre-filled with absorbing water (or dilute ammonia water bottom liquid), and the gas and liquid are in full contact and dissolve to convert into high-concentration ammonia water. The funnel-shaped converging element 6 guides the condensate droplets on the surface of the condensing element 5 and the guided gas to the liquid surface of the collection tank 7. Finally, the recovered ammonia water that meets the standards is guided out through the collecting pipe 12, realizing resource utilization. The ammonia adsorption and recovery integration is realized. Through the coherent process of molecular sieve adsorption, heating resolution, and condensation recovery, the ammonia tail gas is efficiently treated, avoiding environmental pollution caused by direct ammonia emission. At the same time, ammonia water resources are recovered, reducing production costs. The air holes 13 on the converging element 6 can allow the tail gas below to pass through and contact the molecular sieve 2. The raised edges can prevent ammonia water from falling from the air holes 13. The heating element 4 and the condensing element 5 are fixed to the inner wall of the tank body by the bracket 14, ensuring their stability during operation.

[0026] Example 2: Please refer to Figures 4-7 On the basis of example 1, a filter assembly is provided at the inlet 8, which includes a filter shell 20. An exhaust gas inlet 21 is provided on the outer side wall of the filter shell 20. A filter core 28 is provided in the filter shell 20. The filter core 28 is cylindrical. The exhaust gas inlet 21 is connected to the outer side of the filter core 28. One end of the filter shell 20 is provided with an exhaust gas outlet 22, which is connected to the inner side of the filter core 28. The exhaust gas inlet 21 is connected to the exhaust gas input pipeline, and the exhaust gas outlet 22 is connected to the inlet 8.

[0027] The other end of the filter shell 20 is connected with a recovery shell 24. The inner cavity of the recovery shell 24 is communicated with the filter shell 20. One end of the filter core 28 in the recovery shell 24 is in a sealed state. One end of the filter core 28 in the recovery shell 24 is movably and sealingly connected to the inner wall of the recovery shell 24. The telescopic rod 25 is fixedly connected to the outside of the recovery shell 24, and the output end of the telescopic rod 25 penetrates the recovery shell 24 and is rotationally connected to one end of the filter core 28 located in the recovery shell 24. The air rod 15 is fixedly connected to the outside of the recovery shell 24, the power input end of the air rod 15 penetrates the recovery shell 24 and is rotationally connected to one end of the filter core 28 located in the recovery shell 24, the output port of the air rod 15 is connected to the air ring 17 through the air pipe 16, the air ring 17 is fixedly connected to the inside of the recovery shell 24, and the air ring 17 is located at the outer periphery of the filter core 28; the air ring 17 can be inflated by air, and a plurality of micron-level jet holes (not shown in the figure) are uniformly arranged on the inner side surface of the air ring 17; when the air rod 15 supplies air inward, the air ring 17 is inflated and tightly attached to the surface of the filter core 28 to scrape off large-particle impurities, and at the same time, the high-pressure gas in the inside is sprayed outward at high speed through the jet holes, forming a strong annular air knife effect (i.e. the slow air leakage process mentioned above), which forcibly blows out the fine dust embedded in the pores of the filter core, realizing deep cleaning.

[0028] The inner wall of the filter shell 20 is provided with a spiral, one end of the filter core 28 close to the tail gas outlet 22 is provided with a rotating ring 26, the rotating ring 26 is engaged with the spiral of the inner wall of the filter shell 20, and when the rotating ring 26 moves along the axis direction of the filter shell 20, the rotating ring 26 rotates under the influence of the spiral, a ratchet member 27 is arranged between the filter core 28 and the rotating ring 26, the ratchet member 27 is fixedly connected to the filter core 28, and the ratchet member 27 is unidirectionally engaged with the inside of the rotating ring 26.

[0029] The lower side of the filter shell 20 and the recovery shell 24 is provided with a recovery bin 23, the filter shell 20, the recovery shell 24 and the recovery bin 23 are fixedly connected, the recovery bin 23 is communicated with the recovery shell 24, a baffle 19 is arranged at the communication position of the recovery bin 23 and the recovery shell 24, the baffle 19 is rotationally connected to a fixed rod 18, the fixed rod 18 is fixedly connected to the recovery shell 24, a torsional spring is arranged between the fixed rod 18 and the baffle 19, and a limiting member for limiting the limit position of the baffle 19 is arranged on the fixed rod 18.

[0030] The working principle and beneficial effects of the above scheme are as follows: The tail gas enters the tank body 1 first through the filter assembly treatment: the tail gas enters the filter shell 20 through the tail gas inlet 21, flows from the outside to the inside of the cylindrical filter element 28 in the filter shell, and the solid impurities in the tail gas are intercepted and filtered by the filter element. The purified tail gas enters the tank body through the tail gas outlet 22 and the tank body inlet 8 for adsorption treatment; when the impurities on the surface of the filter element accumulate more, the telescopic rod 25 is started to drive the filter element 28 to move along the axis direction of the filter shell. The rotating ring 26 at one end of the filter element is engaged with the spiral on the inner wall of the filter shell, and rotates in the moving process under the action of the spiral. The filter element is driven to rotate in one direction by the ratchet wheel 27. At the same time, the air rod 15 drives the air ring 17 to inflate and expand tightly around the filter element, and then the air ring slowly leaks. Under the double action of the rotation of the filter element and the change of the air pressure of the air ring, the impurities on the surface of the filter element fall off. The falling impurities fall to the bottom of the recovery shell 24, push away the baffle 19 controlled by the torsional spring, and fall into the recovery bin 23 below for collection. The baffle is automatically reset under the action of the torsional spring to ensure the sealing of the filter assembly.

[0031] The newly added filter assembly can effectively intercept the solid impurities in the tail gas, avoid the impurities from entering the tank body to pollute the molecular sieve 2 and block the gas distribution structure, ensure the ammonia gas adsorption efficiency, and prolong the service life of the molecular sieve.

[0032] The automatic cleaning function of the filter element 28 does not need to disassemble the equipment. Through the cooperation of the telescopic rod, the rotating ring and the air ring, the impurities are automatically fallen off and collected, which greatly reduces the frequency and difficulty of manual maintenance and reduces the operation and maintenance cost.

[0033] The design of the recovery bin 23 and the baffle 19 realizes the centralized collection of impurities, avoids the secondary pollution of impurities, and at the same time, the sealing structure of the baffle ensures the sealing of the tail gas treatment and prevents the leakage of the tail gas.

[0034] The cylindrical filter element 28 adopts the filtering mode of outside air inlet and inside air outlet, which increases the contact area of the tail gas and the filter element, improves the filtering efficiency, and ensures the purity of the tail gas entering the tank body.

[0035] Embodiment 3: please refer to Figures 8-10 On the basis of embodiment 1, the tank body 1 is provided with an access hole 10, and the access hole 10 is provided with a sealing assembly. The sealing assembly includes a fixed plate 31, the fixed plate 31 is provided with a fixed hole 30, the fixed plate 31 is fixed by screwing the fixed hole 30 and the tank body 1, and an ammonia gas corrosion resistant elastic sealing ring (such as tetrafluoroethylene or ternary ethylene propylene rubber material, not shown in the figure) is embedded between the fixed plate 31 and the access hole flange of the tank body 1 to ensure zero leakage sealing in high pressure environment. The fixed plate 31 is provided with a plurality of clamping grooves 34. The fixed plate 31 is rotationally connected with a clamping plate 32 at the center of the fixed plate 31, and the clamping plate 32 is provided with a stop block 46 corresponding to a clamping groove 34 at the edge of the clamping plate 32, and the stop block 46 can be clamped in the clamping groove 34; The clamping plate 32 is provided with a driving cavity 44 at the center of the clamping plate 32, and the driving cavity 44 is provided with a central shaft 29, and the central shaft 29 is rotationally connected with a driving gear 33, and the driving gear 33 is provided with a toothed rod 35 on the outside of the driving gear 33, and the toothed rod 35 is engaged with the driving gear 33; The stop block 46 on the side of the clamping plate 32 is provided with a sliding groove 42, and the sliding groove 42 is slidably connected with a follower rod 36, and the follower rod 36 is fixedly connected with the toothed rod 35; The follower rod 36 is provided with a wedge block 37, and the wedge block 37 can abut against the clamping groove 34, and the wedge block 37 is used for downwardly pressing the fixed plate 31 by using the mechanical force amplification effect of the inclined surface of the wedge block 37, so as to make the sealing gasket elastically deform, fill the gap, and realize the reliable sealing of the access hole 10. The clamping plate 32 is provided with a fixed boss 41, the fixed boss 41 is fixedly connected with a closing plate 39, and the closing plate 39 is located above the driving gear 33 and the toothed rod 35; the toothed rod 35 is slidably connected to the side wall of the fixed boss 41; the stop block 46 is provided with a limiting clamping groove 43; The clamping groove 34 is inserted with a limiting clamping rod 40 corresponding to the limiting clamping groove 43.

[0036] The driving gear 33 is provided with a driving groove 45 at the center of the driving gear 33; The driving groove 45 is movably inserted with a driving handle 38.

[0037] The working principle and beneficial effects of the above scheme are as follows: The tank 1 is provided with an access hole 10 for equipment maintenance, and the sealing of the access hole is realized by a sealing assembly: the fixed plate 31 is locked and fixed with the tank by penetrating the fixed plate 31 through the fixed hole 30 by a bolt, the clamping plate 32 is rotated, the stop block 46 at the edge of the clamping plate 32 is clamped into the clamping groove 34 of the fixed plate; the driving handle 38 is inserted into the driving groove 45 of the driving gear 33, the driving gear is rotated, the engaged toothed rod 35 is slid along the side wall of the fixed boss 41, the toothed rod drives the follower rod 36 to move in the sliding groove 42 of the stop block, the wedge block 37 on the follower rod abuts against the inner wall of the clamping groove 34, and the preliminary sealing of the access hole is realized; the limiting clamping rod 40 is inserted into the limiting clamping groove 43 of the clamping groove and the stop block, and the sealing structure is further locked; when the access hole needs to be opened, the reverse operation is performed: the limiting clamping rod is pulled out, the wedge block is separated from the clamping groove by rotating the driving handle, the stop block is withdrawn from the clamping groove by rotating the clamping plate, and the fixed plate can be opened for maintenance by disassembling the bolt.

[0038] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The embodiments should therefore be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims should be considered as limiting the scope of the claims with respect to the figures of the patent document.

Claims

1. A molecular sieve adsorption device for ammonia tail gas in triazole synthesis, characterized in that, The container includes a tank (1), a molecular sieve (2) is provided inside the tank (1), a heating element (4) is provided inside the molecular sieve (2), a condenser (5) is provided below the molecular sieve (2), the condenser (5) is fixedly connected to the tank (1), a collection tank (7) is provided below the condenser (5), the collection tank (7) is fixedly connected to the tank (1), an outlet (9) is provided at the upper end of the tank (1), and an inlet (8) is provided at the lower end of the tank (1).

2. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 1, characterized in that, The upper side of the collection tank (7) is connected to a funnel-shaped confluence member (6), and the upper edge of the confluence member (6) is fixedly connected to the tank body (1); The collection tank (7) is connected to a flow collection pipe (12), one end of which passes through the tank body (1) and is connected to the outside of the tank body (1).

3. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 1, characterized in that, The heating element (4) and the condensing element (5) are both fixedly connected to the bracket (14), and the bracket (14) is fixedly connected to the inner wall of the tank (1).

4. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 2, characterized in that, The manifold (6) is provided with an air hole (13), and the edge of the air hole (13) is provided with a raised ridge.

5. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 1, characterized in that, A filter assembly is provided at the inlet (8). The filter assembly includes a filter shell (20). An exhaust gas inlet (21) is provided on the outer wall of the filter shell (20). A filter element (28) is provided inside the filter shell (20). The filter element (28) is cylindrical. The exhaust gas inlet (21) is connected to the outside of the filter element (28). The filter housing (20) is provided with an exhaust gas outlet (22) at one end, and the exhaust gas outlet (22) is connected to the inside of the filter element (28); The exhaust gas inlet (21) is connected to the exhaust gas input pipeline, and the exhaust gas outlet (22) is connected to the inlet (8).

6. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 5, characterized in that, The other end of the filter shell (20) is connected to a recovery shell (24), and the inner cavity of the recovery shell (24) is in communication with the filter shell (20); The filter element (28) is sealed at one end inside the recovery shell (24), and the filter element (28) is movably and sealed to the inner wall of the recovery shell (24). A telescopic rod (25) is fixedly connected to the outside of the recycling shell (24). The output end of the telescopic rod (25) passes through the recycling shell (24) and is rotatably connected to one end of the filter element (28) located inside the recycling shell (24). An air rod (15) is fixedly connected to the outside of the recovery shell (24). The power input end of the air rod (15) slides through the recovery shell (24) and is rotatably connected to one end of the filter element (28) located inside the recovery shell (24). The output port of the air rod (15) is connected to the air ring (17) through the air pipe (16). The air ring (17) is fixedly connected inside the recovery shell (24) and is located on the outer periphery of the filter element (28). The air ring (17) can expand under air and leaks air slowly.

7. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 6, characterized in that, The inner wall of the filter housing (20) is provided with a spiral. The filter element (28) is provided with a rotating ring (26) at one end near the exhaust outlet (22). The rotating ring (26) meshes with the spiral of the inner wall of the filter housing (20). When the rotating ring (26) moves along the axial direction of the filter housing (20), the rotating ring (26) rotates due to the influence of the spiral. A ratchet (27) is provided between the filter element (28) and the rotating ring (26). The ratchet (27) is fixedly connected to the filter element (28). The ratchet (27) meshes with the inner side of the rotating ring (26) in one direction.

8. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 7, characterized in that, A recycling chamber (23) is provided on the lower side of the filter shell (20) and the recycling shell (24). The filter shell (20), the recycling shell (24) and the recycling chamber (23) are fixedly connected. The recycling chamber (23) is connected to the recycling shell (24). A baffle (19) is provided at the connection between the recycling chamber (23) and the recycling shell (24). The baffle (19) is rotatably connected to the fixing rod (18). The fixing rod (18) is fixedly connected to the recycling shell (24). A torsion spring is provided between the fixing rod (18) and the baffle (19). A limiting member is provided on the fixing rod (18) to limit the extreme position of the baffle (19).

9. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 1, characterized in that, The tank (1) is provided with an inspection port (10), and a sealing assembly is provided at the inspection port (10). The sealing assembly includes a fixing plate (31), and a fixing hole (30) is provided on the fixing plate (31). The fixing plate (31) is fixed by locking the fixing hole (30) and the tank (1) with bolts. The fixing plate (31) is provided with several sets of slots (34); A locking plate (32) is rotatably connected to the center of the fixing plate (31), and a stop (46) corresponding to the slot (34) is provided at the edge of the locking plate (32). The stop (46) can be locked into the slot (34). The card plate (32) has a drive cavity (44) at its center. A central shaft (29) is provided inside the drive cavity (44). A drive gear (33) is rotatably connected to the central shaft (29). A rack (35) is provided on the outside of the drive gear (33). The rack (35) meshes with the drive gear (33). A groove (42) is provided on the stop block (46) on the side of the positioning plate (32), and a follower rod (36) is slidably connected in the groove (42). The follower rod (36) is fixedly connected to the rack (35). The follower rod (36) is provided with a wedge block (37), which can abut against the slot (34); The mounting plate (32) is provided with a fixed boss (41), and a closing plate (39) is fixedly connected to the fixed boss (41). The closing plate (39) is located above the drive gear (33) and the rack (35). The rack (35) is slidably connected to the side wall of the fixed boss (41). The stop block (46) is provided with a limit slot (43). A limiting lever (40) corresponding to the limiting slot (43) is inserted into the slot (34).

10. The ammonia tail gas molecular sieve adsorption device for triazole synthesis according to claim 9, characterized in that, A drive groove (45) is provided at the center of the drive gear (33); A drive handle (38) is movably inserted into the drive slot (45).

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