Aliphatic tertiary amine production process gas recovery system and online component detection system

Abstract

The invention relates to the technical field of chemical production, and discloses a tertiary aliphatic amine production process gas recovery system and an online component detection system, which comprise a storage tank, a one-way valve, a drying tank and a synchronous frame. In the gas recovery process, gas can drive fan blades to rotate, the fan blades drive a synchronous frame to rotate, a driving friction wheel can rotate to push a drying agent in a drying cavity to move, and when an auxiliary friction wheel drives stirring blades to rotate, the drying agent in the drying cavity is fully mixed, so that the drying effect is improved. The pressing rod on the synchronous frame slides on the guide groove, the boss drives the pressing rod and the push rod to horizontally slide in a reciprocating mode, then the rocker arm is driven to swing, the coaxial driving friction wheel is driven to rotate, the positions of the driving friction wheel and the scattering blades are adjusted, and mixing operation is conducted on different positions. The drying agent in the drying tank can be in uniform contact with the gas, the drying effect is improved, the drying agent can be fully utilized, and the gas recovery cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical production, and in particular relates to a gas recovery system and an online component detection system for a fatty tertiary amine production process. Background Art

[0002] In the production process of fatty tertiary amines, a large amount of process gas is generated, which often contains unreacted raw materials, intermediates and other volatile organic compounds. If these gases are directly discharged into the atmosphere, it will not only waste resources but also cause serious pollution to the environment. In addition, in order to ensure the stability of the production process and the consistency of product quality, the composition of the process gas needs to be monitored and accurately controlled in real time.

[0003] In the process of working, the existing gas recovery system often needs to separate the moisture in the tail gas, and then use the drying tank. However, during the drying process, the desiccant at the inlet of the drying tank can immediately contact with the water-containing gas, thereby achieving the purpose of adsorbing water. However, as the adsorption time is too long, the desiccant on the surface will gradually lose its effect. At this time, the desiccant needs to be replaced. However, the desiccant located in the dead corner of the inner cavity of the drying tank has not been dried yet, which will cause a waste of desiccant, and further increase the recovery cost.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A gas recovery system for a fatty tertiary amine production process comprises a storage tank, a one-way valve, a drying tank and a synchronous rack.

[0007] A piston is slidably installed inside the storage tank, the piston is tightly fitted with the side wall of the storage tank, and a limit spring is installed between the side wall of the storage tank and the piston;

[0008] One end of the one-way valve is interconnected with the inlet of the storage tank;

[0009] A pair of connecting pipes is installed on the drying tank, and an input pipe and a delivery pipe are installed on the pair of connecting pipes respectively, the input pipe is connected to the tail gas emission component of the fatty tertiary amine production process, and the delivery pipe is connected to the other end of the one-way valve, a pair of positioning blocks is installed inside the drying tank, and a drying chamber is formed between the pair of positioning blocks and the side wall of the drying tank, and the inside of the drying chamber is filled with alkaline desiccant, and the alkaline desiccant is soda lime, and a barrier net is installed inside the positioning block, and a positioning plate is installed on the barrier net;

[0010] The synchronous frame is placed at the center of the drying chamber, and the rotation center of the synchronous frame is rotatably connected to the positioning plate, and a fan blade is installed at the end of the synchronous frame, and an auxiliary friction wheel is rotatably installed in the middle position of the synchronous frame, a side plate is installed on the rotation center of the auxiliary friction wheel, a plug shaft is installed on the side plate, a sleeve shaft is sleeved on the plug shaft, and a stirring blade is installed on the side wall of the sleeve shaft, the side wall of the auxiliary friction wheel is tightly fitted with a pair of active friction wheels installed on the surface of the synchronous shaft, and a pair of active friction wheels are centrally symmetrically distributed with the rotation center of the auxiliary friction wheel as the symmetry center, each active friction wheel is semicircular, and a scattering blade is installed on the end face of the active friction wheel, a rocker arm is installed at the rotation center of the active friction wheel, a reset cover is installed on the side wall of the synchronous frame, and a push rod is movably inserted inside the reset cover, one end of the push rod is slidably connected to the side wall of the rocker arm, and a pressure rod is installed on the other end of the push rod, and the end of the pressure rod is slidably connected to the guide groove opened on the surface of the positioning plate, a boss is opened on the guide groove, and the guide groove is annular.

[0011] As a preferred embodiment of the present invention, an exhaust pipe is installed on the storage tank, the exhaust pipe is communicated with the piston and the chamber formed by the inlet side of the storage tank, and an electronic valve is installed on the exhaust pipe.

[0012] As a preferred embodiment of the present invention, a bracket is installed on the end face of the piston, a limit rod is movably installed inside the bracket, both ends of the limit rod are interconnected with the inner wall of the storage tank, the limit spring is sleeved on the outside of the limit rod, a limit ring is installed on the side wall of the storage tank, the limit ring is adapted to the piston, a warning block is installed on the bracket, and the warning block corresponds to the notch opened on the storage tank.

[0013] As a preferred embodiment of the present invention, connecting flanges are installed on the connection between the one-way valve and the storage tank, the connection between the one-way valve and the delivery pipe, and the connection between the connecting pipe and the input pipe and the delivery pipe.

[0014] As a preferred embodiment of the present invention, a sealing door is screwed to the bottom of the drying tank, the sealing door is communicated with the drying chamber, an inner groove is provided inside the positioning block, and the fan blade is located in the inner groove.

[0015] As a preferred embodiment of the present invention, synchronization shafts are installed at both ends of the synchronization frame, and the synchronization shafts movably penetrate the positioning plate, wherein one end of the synchronization shaft is interconnected with the fan blades, and a first mounting groove and a second mounting groove are opened on the synchronization frame, and the first mounting groove and the second mounting groove are rotatably connected to the auxiliary friction wheel and the active friction wheel respectively, and the first mounting groove and the second mounting groove are connected to each other.

[0016] As a preferred embodiment of the present invention, a positioning shaft is installed at the rotation center of the auxiliary friction wheel, the positioning shaft movably passes through the side wall of the synchronous frame, and the end of the positioning shaft is interconnected with the rotation center of the side plate, and a limit block is screwed on the plug-in shaft, and the limit block is in contact with the end of the sleeve shaft.

[0017] As a preferred embodiment of the present invention, a rotating block is installed at the rotation center of the active friction wheel, a rotating shaft is installed on the rotating block, the rotating shaft movably passes through the synchronous frame, the end of the rotating shaft is connected to the rotation center of the rocker arm, a strip groove is opened on the rocker arm, a sliding rod is slidably arranged on the strip groove, a fixed block is installed on the sliding rod, and the fixed block is connected to the end of the push rod.

[0018] As a preferred embodiment of the present invention, a reset plate is slidably arranged inside the reset cover, the reset plate is connected to the ends of the pressure rod and the push rod, a reset spring is sleeved on the push rod located inside the reset cover, one end of the reset spring is clamped on the end of the reset cover, and the other end of the reset spring is clamped on the reset plate, a ball is installed at the end of the pressure rod, the ball is slidably connected to the bottom of the guide groove, and the connection between the guide groove and the boss is rounded.

[0019] The present invention also discloses an online composition detection system for gas in the production process of fatty tertiary amines. The online gas composition detection system comprises a portable gas composition detector and the above-mentioned gas recovery system. The housing of the portable gas composition detector is installed on the conveying pipe, and the detection contact of the portable gas composition detector is placed in the inner cavity of the conveying pipe.

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

[0021] In the process of recovering gas, the gas can drive the fan blades to rotate, and the fan blades drive the entire synchronous frame to rotate. The active friction wheel and the auxiliary friction wheel on the synchronous frame rotate synchronously with the fan blades. The rotation of the active friction wheel can push the desiccant in the drying chamber to move, and when the auxiliary friction wheel drives the stirring blade to rotate, the internal desiccant can be fully mixed. The desiccant is mixed more fully through the joint action of the two. The pressure rod on the synchronous frame slides on the guide groove, and drives the pressure rod and the push rod to slide back and forth horizontally through the boss, thereby driving the swing arm to swing, thereby driving the coaxial active friction wheel to rotate, and then adjusting the position of the active friction wheel and the breaking blade, and performing mixing operations on different positions. When the active friction wheel rotates, the active friction wheel can drive the auxiliary friction wheel to rotate, and then drive the entire stirring blade to rotate, thereby further improving the mixing position, so that the desiccant in the drying tank can be evenly contacted with the gas, thereby improving the drying effect, and the desiccant can be fully utilized, reducing the gas recovery cost.

[0022] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the attached picture:

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a gas recovery system and an online component detection system for a fatty tertiary amine production process;

[0025] Figure 2 It is a bottom view of a gas recovery system and an online component detection system for a fatty tertiary amine production process;

[0026] Figure 3 A partial structural diagram of a gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 1 ;

[0027] Figure 4 A partial structural diagram of a gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 2 ;

[0028] Figure 5 A gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 A partial structural diagram of a gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 3 ;

[0030] Figure 7 A gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 6 Enlarged view of point B in the middle;

[0031] Figure 8 It is a cross-sectional view of a gas recovery system and an online component detection system for a fatty tertiary amine production process at a reset cover;

[0032] Fig. 9 A partial structural diagram of a gas recovery system and online component detection system for the production process of fatty tertiary amines Figure 4 .

[0033] In the figure:

[0034] 1. Storage tank; 11. Exhaust pipe; 111. Electronic valve; 12. Piston; 121. Bracket; 122. Limit rod; 123. Limit spring; 124. Limit ring; 13. Warning block; 131. Notch;

[0035] 2. Check valve; 21. Connecting flange;

[0036] 3. Drying tank; 31. Connecting pipe; 311. Input pipe; 312. Delivery pipe; 32. Sealing door; 33. Positioning block; 331. Inner groove; 332. Barrier net; 333. Positioning plate; 334. Drying chamber;

[0037] 4. Synchronous frame; 41. Synchronous shaft; 411. Fan blade; 42. Auxiliary friction wheel; 421. First mounting groove; 422. Positioning shaft; 423. Side plate; 424. Insert shaft; 425. Sleeve shaft; 426. Stirring blade; 427. Limit block; 43. Active friction wheel; 431. Second mounting groove; 432. Rotating block; 433. Breaking blade; 434. Rotating shaft; 435. Rocker arm; 436. Strip groove; 44. Reset cover; 441. Push rod; 442. Fixed block; 443. Sliding rod; 444. Reset plate; 445. Reset spring; 446. Press rod; 447. Ball; 45. Guide groove; 451. Boss;

[0038] 5. Portable gas composition detector. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0040] Embodiment 1:

[0041] like Figures 1 to 9 As shown, a gas recovery system for a fatty tertiary amine production process includes a storage tank 1, a one-way valve 2, a drying tank 3 and a synchronous rack 4.

[0042] A piston 12 is slidably installed inside the storage tank 1. The piston 12 fits tightly against the side wall of the storage tank 1. A limit spring 123 is installed between the side wall of the storage tank 1 and the piston 12. When the storage tank 1 is inflated, the piston 12 can be pushed toward the bottom of the storage tank 1 by the air pressure, thereby increasing the space of the storage tank 1, and as the piston 12 moves, the limit spring 123 can be compressed, which facilitates later resetting.

[0043] One end of the one-way valve 2 is connected to the inlet of the storage tank 1. The one-way valve 2 ensures that the gas inside the storage tank 1 cannot come out from the inlet, but the gas can be filled into the storage tank 1 from the inlet.

[0044] A pair of connecting pipes 31 are installed on the drying tank 3, and an input pipe 311 and a delivery pipe 312 are installed on the pair of connecting pipes 31 accordingly. The input pipe 311 is interconnected with the tail gas emission component of the fatty tertiary amine production process. The tail gas emission component of the fatty tertiary amine production process is a prior art, and its working principle is not repeated here. The delivery pipe 312 is interconnected with the other end of the one-way valve 2. A pair of positioning blocks 33 are installed inside the drying tank 3. A drying chamber 334 is formed between the pair of positioning blocks 33 and the side wall of the drying tank 3. The drying chamber 334 is filled with an alkaline desiccant, and the alkaline desiccant is soda lime. A barrier net 332 is installed inside the positioning block 33, and a positioning plate 333 is installed on the barrier net 332;

[0045] The synchronous frame 4 is placed at the center of the drying chamber 334, and the rotation center of the synchronous frame 4 is rotatably connected to the positioning plate 333, and a fan blade 411 is installed at the end of the synchronous frame 4, and an auxiliary friction wheel 42 is rotatably installed at the middle position of the synchronous frame 4, and a side plate 423 is installed on the rotation center of the auxiliary friction wheel 42, and an insertion shaft 424 is installed on the side plate 423, and a sleeve shaft 425 is sleeved on the insertion shaft 424, and a stirring blade 426 is installed on the side wall of the sleeve shaft 425, and the side wall of the auxiliary friction wheel 42 is tightly fitted with a pair of active friction wheels 43 installed on the surface of the synchronous shaft 41, and the pair of active friction wheels 43 are connected with the auxiliary friction wheel 4 2 is a symmetrical center and is centrally symmetrically distributed. Each active friction wheel 43 is semicircular, and a scattering blade 433 is installed on the end face of the active friction wheel 43. A rocker arm 435 is installed at the rotation center of the active friction wheel 43. A reset cover 44 is installed on the side wall of the synchronous frame 4. A push rod 441 is movably inserted inside the reset cover 44. One end of the push rod 441 is slidably connected to the side wall of the rocker arm 435. A pressure rod 446 is installed on the other end of the push rod 441. The end of the pressure rod 446 is slidably connected to a guide groove 45 opened on the surface of the positioning plate 333. A boss 451 is opened on the guide groove 45, and the guide groove 45 is annular.

[0046] In the process of gas recovery, the gas can drive the fan blade 411 to rotate, and the fan blade 411 drives the entire synchronous frame 4 to rotate. The active friction wheel 43 and the auxiliary friction wheel 42 on the synchronous frame 4 rotate synchronously with the fan blade 411. The rotation of the active friction wheel 43 can push the desiccant in the drying chamber 334 to move, and the auxiliary friction wheel 42 can mobilize the stirring blade 426 to rotate. When the stirring blade 426 rotates, the internal desiccant can be fully mixed. The combined action of the two makes the desiccant mixed more fully, and the pressure rod 446 on the synchronous frame 4 always slides on the guide groove 45, through the boss 45 1 drives the pressure rod 446 and the push rod 441 to slide horizontally back and forth, and then drives the rocker arm 435 to swing, so as to drive the coaxial active friction wheel 43 to rotate, and then adjust the positions of the active friction wheel 43 and the scattering blade 433, and perform mixing operations on different positions. When the active friction wheel 43 rotates, the active friction wheel 43 can drive the auxiliary friction wheel 42 to rotate, and then drive the entire stirring blade 426 to rotate, and then further improve the mixing position, so that the desiccant in the drying tank 3 can be evenly contacted with the gas, thereby improving the drying effect, and the desiccant can also be fully utilized, reducing the gas recovery cost.

[0047] like Figures 1 to 9 As shown, in a specific embodiment, an exhaust pipe 11 is installed on the storage tank 1, and the exhaust pipe 11 is convenient for later exhaust. The exhaust pipe 11 is interconnected with the chamber formed by the piston 12 and the inlet side of the storage tank 1. An electronic valve 111 is installed on the exhaust pipe 11, and the opening and closing of the exhaust pipe 11 can be controlled by the electronic valve 111.

[0048] like Figures 1 to 9 As shown, further, a bracket 121 is installed on the end face of the piston 12, and a limit rod 122 is installed inside the bracket 121. The two ends of the limit rod 122 are connected to the inner wall of the storage tank 1, and the limit spring 123 is sleeved on the outside of the limit rod 122. A limit ring 124 is installed on the side wall of the storage tank 1. The limit ring 124 is adapted to the piston 12. A warning block 13 is installed on the bracket 121. The warning block 13 corresponds to the notch 131 opened on the storage tank 1. As the gas pressure inside the storage tank 1 increases, the piston 12 at this time drives the bracket 121 along the limit The limiting rod 122 slides, and when sliding, the limiting spring 123 on the limiting rod 122 is compressed. At this time, the elastic force on the limiting spring 123 gradually increases, so the piston 12 can move smoothly. At this time, the gas pressure on the left side of the piston 12 is greater than the pressure of the limiting spring 123 at the other end. When the pressure reaches a certain requirement, the piston 12 overlaps the limiting ring 124. At this time, the piston 12 remains stationary, but the warning block 13 extends from the notch 131 at this time, thereby reminding the storage tank 1 that the specified pressure has been reached and the storage tank 1 needs to be replaced.

[0049] Embodiment 2:

[0050] The difference between Example 1 and this Example is that: Figures 1 to 9 As shown, connecting flanges 21 are installed at the connection between the one-way valve 2 and the storage tank 1, the connection between the one-way valve 2 and the delivery pipe 312, and the connection between the connecting pipe 31 and the input pipe 311 and the delivery pipe 312, and the connecting flanges 21 play a connecting effect.

[0051] like Figures 1 to 9 As shown, in a specific embodiment, a sealing door 32 is connected to the bottom of the drying tank 3 by screws, the sealing door 32 is communicated with the drying chamber 334, an inner groove 331 is provided inside the positioning block 33, and the fan blade 411 is located in the inner groove 331, so that the desiccant inside the drying chamber 334 can be conveniently filled and cleaned through the sealing door 32.

[0052] Embodiment 3:

[0053] The difference between Example 2 and this example is that: Figures 1 to 9 As shown, the synchronous frame 4 is provided with a synchronous shaft 41 at both ends, and the synchronous shaft 41 movably penetrates the positioning plate 333, wherein one end of the synchronous shaft 41 is connected to the fan blade 411, and the synchronous frame 4 is provided with a first mounting groove 421 and a second mounting groove 431, which are respectively rotatably connected to the auxiliary friction wheel 42 and the active friction wheel 43, and the first mounting groove 421 and the second mounting groove 431 are connected to each other. A positioning shaft 422 is installed at the rotation center of the auxiliary friction wheel 42, and the positioning shaft 422 movably penetrates the side wall of the synchronous frame 4, and the end of the positioning shaft 422 is connected to the rotation center of the side plate 423, and a limit block 427 is screwed on the plug shaft 424, and the limit block 427 is fitted with the end of the sleeve shaft 425. A rotating block 432 is installed at the rotation center of the active friction wheel 43, and a rotating shaft 434 is installed on the rotating block 432. The rotating shaft 434 movably passes through the synchronous frame 4, and the end of the rotating shaft 434 is connected to the rotation center of the rocker arm 435. A strip groove 436 is opened on the rocker arm 435, and a sliding rod 443 is slidably arranged on the strip groove 436. A fixed block 442 is installed on the sliding rod 443, and the fixed block 442 is connected to the end of the push rod 441.

[0054] like Figures 1 to 9As shown, in a specific embodiment, a reset plate 444 is slidably provided inside the reset cover 44, and the reset plate 444 is connected to the ends of the pressure rod 446 and the push rod 441, and a reset spring 445 is sleeved on the push rod 441 located inside the reset cover 44, and one end of the reset spring 445 is clamped on the end of the reset cover 44, and the other end of the reset spring 445 is clamped on the reset plate 444, and a ball 447 is installed at the end of the pressure rod 446, and the ball 447 is slidably connected to the bottom of the guide groove 45, and the connection between the guide groove 45 and the boss 451 is rounded. When the synchronous frame 4 rotates, the ball 447 on the pressure rod 446 always slides on the guide groove 45. When the ball 447 encounters the boss 451, the pressure rod 446 and the reset plate 444 are squeezed to move, and then the push rod 441 also moves synchronously. At this time, the internal reset spring 445 is compressed. When the ball 447 and the boss 451 are separated, the reset spring 445 is used to operate. Therefore, when the pressure rod 446 slides on the guide groove 45, the pressure rod 446 and the push rod 441 slide back and forth left and right.

[0055] The present invention also discloses an online composition detection system for gas in the production process of fatty tertiary amines. The gas online composition detection system includes a portable gas composition detector 5 and the above-mentioned gas recovery system. The shell of the portable gas composition detector 5 is installed on the delivery pipe 312, and the detection contact of the portable gas composition detector 5 is placed in the inner cavity of the delivery pipe 312.

[0056] The implementation principle of the gas recovery system and online component detection system of the fatty tertiary amine production process of the present invention is as follows:

[0057] When gas recovery is performed, the operator first connects the input pipe 311 and the tail gas emission component of the fatty tertiary amine production process to each other, and introduces gas into the input pipe 311 through the tail gas emission component of the fatty tertiary amine production process, wherein the tail gas emission component of the fatty tertiary amine production process is a prior art, and its working principle is no longer repeated here, and the gas inside the input pipe 311 passes through the connecting pipe 31 and enters the drying tank 3 through the connecting pipe 31, and the drying effect can be achieved through the internal desiccant, and the dried gas is transported to the inside of the one-way valve 2 through the delivery pipe 312, and the gas is transported to the inside of the storage tank 1 through the one-way valve 2.

[0058] As the gas pressure inside the storage tank 1 increases, the piston 12 drives the bracket 121 to slide along the limit rod 122, and when sliding, the limit spring 123 on the limit rod 122 is compressed. At this time, the elastic force of the limit spring 123 gradually increases, so the piston 12 can move smoothly. At this time, the gas pressure on the left side of the piston 12 is greater than the pressure of the limit spring 123 at the other end. When the pressure reaches a certain requirement, the piston 12 overlaps the limit ring 124. At this time, the piston 12 remains stationary, but the warning block 13 extends from the notch 131 at this time, thereby reminding the storage tank 1 that the specified pressure has been reached and the storage tank 1 needs to be replaced. The initial state of the piston 12 is located at the leftmost side of the storage tank, ensuring that the initial state of the storage tank chamber on the leftmost side of the piston 12 is completely closed, without other gases, so that the gas stored in the storage tank 1 in the later stage is all waste gas, which improves the purity of the gas after storage. The above structure is Figure 3 As a benchmark.

[0059] When the gas slides on the delivery pipe 312, the type of gas is detected through the contacts at the bottom of the portable gas composition detector 5 to detect whether the dried gas can meet the required standards.

[0060] When the gas flows inside the drying tank 3, the gas slides along the inner groove 331 of the positioning block 33. At this time, the high-pressure gas can drive the fan blades 411 located in the inner groove 331 to rotate, and the fan blades 411 can drive the synchronous shaft 41 to rotate on the positioning plate 333. Then the positioning plate 333 can drive the entire synchronous frame 4 to rotate in the drying chamber 334.

[0061] The active friction wheel 43 and the auxiliary friction wheel 42 on the synchronous frame 4 rotate synchronously with the fan blade 411.

[0062] The active friction wheel 43 is plate-shaped, so the rotation of the active friction wheel 43 can push the internal desiccant to shift position, and the breaking blade 433 at the other end of the active friction wheel 43 can also rotate along, thereby breaking up the shifted agglomerated desiccant, making it mix more fully with the gas and drying more completely.

[0063] When the auxiliary friction wheel 42 rotates with the synchronous frame 4, the auxiliary friction wheel 42 drives the side plate 423, the plug shaft 424, the sleeve shaft 425 and the stirring blade 426 to rotate. When the stirring blade 426 rotates, the central desiccant can be fully mixed, and the rotation of the active friction wheel 43 will also cause a part of the desiccant to slide to the center of the drying tank 3, and the desiccant can be mixed again by the stirring blade 426. The combined action of the two makes the desiccant mixed more fully.

[0064] When the synchronous frame 4 rotates, the ball 447 on the pressure rod 446 always slides on the guide groove 45. When the ball 447 encounters the boss 451, the pressure rod 446 and the reset plate 444 are squeezed to move, and then the push rod 441 also moves synchronously. At this time, the internal reset spring 445 is compressed. When the ball 447 and the boss 451 are separated, the reset spring 445 is used to operate. Therefore, when the pressure rod 446 slides on the guide groove 45, the pressure rod 446 and the push rod 441 slide back and forth left and right.

[0065] When the push rod 441 slides, the fixed block 442 on the push rod 441 drives the slide bar 443 to slide, and the slide bar 443 slides on the strip groove 436 on the surface of the rocker arm 435, and then the rocker arm 435 starts to swing, and the rocker arm 435 drives the rotating block 432 to rotate through the rotating shaft 434, and the rotating block 432 drives the active friction wheel 43 to rotate, and the positions of the active friction wheel 43 and the scattering blade 433 change, and the desiccant at different positions in the inner cavity of the drying tank 3 can be mixed. Since two active friction wheels 43 are provided, and the active friction wheels 43 are centrally symmetrically distributed, the initial positions of the two active friction wheels 43 are different, and then the desiccant on the left and right sides of the drying chamber 334 are opposite in position and scattering position, and then the desiccant can be mixed more fully through different sequences, and the desiccant can be prevented from rotating synchronously with the active friction wheel 43 in the later stage, resulting in insufficient mixing.

[0066] When the active friction wheel 43 rotates, the active friction wheel 43 drives the auxiliary friction wheel 42 to rotate by friction force, and the auxiliary friction wheel 42 drives the side plate 423 to rotate through the positioning shaft 422, and the side plate 423 drives the stirring blade 426 to rotate, which further improves the mixing position, so that the desiccant in the drying tank 3 can be evenly contacted with the gas, thereby improving the drying effect, and the desiccant can be fully utilized, thereby reducing the gas recovery cost.

Claims

1. A gas recovery system for the production process of fatty tertiary amines, characterized in that: include: A storage tank (1), wherein a piston (12) is slidably mounted inside the storage tank (1), the piston (12) is tightly fitted to a side wall of the storage tank (1), and a limit spring (123) is mounted between the side wall of the storage tank (1) and the piston (12); A one-way valve (2), one end of which is connected to the inlet of the storage tank (1); A drying tank (3), wherein a pair of connecting pipes (31) are installed on the drying tank (3), and an input pipe (311) and a delivery pipe (312) are installed on the pair of connecting pipes (31) respectively, wherein the input pipe (311) is connected to a tail gas emission component of a fatty tertiary amine production process, and the delivery pipe (312) is connected to the other end of the one-way valve (2). A pair of positioning blocks (33) are installed inside the drying tank (3), and a drying chamber (334) is formed between the pair of positioning blocks (33) and the side wall of the drying tank (3), and the drying chamber (334) is filled with an alkaline desiccant, and the alkaline desiccant is soda lime. A barrier net (332) is installed inside the positioning block (33), and a positioning plate (333) is installed on the barrier net (332); A synchronous frame (4), the synchronous frame (4) is placed at the center of the drying chamber (334), and the rotation center of the synchronous frame (4) is rotatably connected to the positioning plate (333), and a fan blade (411) is installed at the end of the synchronous frame (4), an auxiliary friction wheel (42) is rotatably installed at the middle position of the synchronous frame (4), a side plate (423) is installed on the rotation center of the auxiliary friction wheel (42), an insertion shaft (424) is installed on the side plate (423), a sleeve shaft (425) is sleeved on the insertion shaft (424), and a stirring blade (426) is installed on the side wall of the sleeve shaft (425), the side wall of the auxiliary friction wheel (42) is tightly fitted with a pair of active friction wheels (43) installed on the surface of the synchronous shaft (41), and the pair of active friction wheels (43) are connected to the auxiliary friction wheel ( The rotation center of the synchronous frame (4) is the symmetry center and is centrally symmetrically distributed. Each active friction wheel (43) is semicircular, and a scattering blade (433) is installed on the end face of the active friction wheel (43). A rocker arm (435) is installed at the rotation center of the active friction wheel (43). A reset cover (44) is installed on the side wall of the synchronous frame (4). A push rod (441) is movably inserted inside the reset cover (44). One end of the push rod (441) is slidably connected to the side wall of the rocker arm (435). A pressure rod (446) is installed on the other end of the push rod (441). The end of the pressure rod (446) is slidably connected to a guide groove (45) opened on the surface of the positioning plate (333). A boss (451) is opened on the guide groove (45). The guide groove (45) is in a circular ring shape.

2. A gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: An exhaust pipe (11) is installed on the storage tank (1), the exhaust pipe (11) is in communication with the piston (12) and a chamber formed on one side of the inlet of the storage tank (1), and an electronic valve (111) is installed on the exhaust pipe (11).

3. A gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: A bracket (121) is installed on the end surface of the piston (12), a limit rod (122) is movably installed inside the bracket (121), two ends of the limit rod (122) are connected to the inner wall of the storage tank (1), the limit spring (123) is sleeved on the outside of the limit rod (122), a limit ring (124) is installed on the side wall of the storage tank (1), the limit ring (124) is compatible with the piston (12), and a warning block (13) is installed on the bracket (121), and the warning block (13) corresponds to a notch (131) provided on the storage tank (1).

4. A gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: Connection flanges (21) are installed at the connection between the one-way valve (2) and the storage tank (1), the connection between the one-way valve (2) and the delivery pipe (312), and the connection between the connecting pipe (31) and the input pipe (311) and the delivery pipe (312).

5. The gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: The bottom of the drying tank (3) is screwed with a sealing door (32), the sealing door (32) is communicated with the drying chamber (334), an inner groove (331) is provided inside the positioning block (33), and the fan blade (411) is located in the inner groove (331).

6. A gas recovery system for the production process of fatty tertiary amines according to claim 1, characterized in that: A synchronization shaft (41) is installed at both ends of the synchronization frame (4), and the synchronization shaft (41) movably penetrates the positioning plate (333), wherein one end of the synchronization shaft (41) is connected to the fan blade (411), and a first mounting groove (421) and a second mounting groove (431) are opened on the synchronization frame (4), and the first mounting groove (421) and the second mounting groove (431) are respectively rotatably connected to the auxiliary friction wheel (42) and the active friction wheel (43), and the first mounting groove (421) and the second mounting groove (431) are connected to each other.

7. A gas recovery system for the production process of fatty tertiary amines according to claim 1, characterized in that: A positioning shaft (422) is installed at the rotation center of the auxiliary friction wheel (42). The positioning shaft (422) movably penetrates the side wall of the synchronous frame (4), and the end of the positioning shaft (422) is connected to the rotation center of the side plate (423). A limit block (427) is screwed and installed on the insertion shaft (424), and the limit block (427) is fitted with the end of the sleeve shaft (425).

8. The gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: A rotating block (432) is installed at the rotation center of the active friction wheel (43), a rotating shaft (434) is installed on the rotating block (432), the rotating shaft (434) movably passes through the synchronous frame (4), the end of the rotating shaft (434) is connected to the rotation center of the rocker arm (435), a strip groove (436) is opened on the rocker arm (435), a sliding rod (443) is slidably arranged on the strip groove (436), a fixed block (442) is installed on the sliding rod (443), and the fixed block (442) is connected to the end of the push rod (441).

9. A gas recovery system for the production process of tertiary fatty amines according to claim 1, characterized in that: A reset plate (444) is slidably arranged inside the reset cover (44), and the reset plate (444) is connected to the ends of the pressure rod (446) and the push rod (441). A reset spring (445) is sleeved on the push rod (441) inside the reset cover (44), and one end of the reset spring (445) is clamped on the end of the reset cover (44), and the other end of the reset spring (445) is clamped on the reset plate (444). A ball (447) is installed at the end of the pressure rod (446), and the ball (447) is slidably connected to the bottom of the guide groove (45), and the connection between the guide groove (45) and the boss (451) is rounded.

10. An online component detection system for aliphatic tertiary amine production process gas, characterized in that: The gas online composition detection system comprises a portable gas composition detector (5) and a gas recovery system as described in any one of claims 1 to 9, wherein the housing of the portable gas composition detector (5) is mounted on a delivery pipe (312), and the detection contacts of the portable gas composition detector (5) are placed in the inner cavity of the delivery pipe (312).

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