Rectification equipment for chemical production

Abstract

The application relates to the chemical technology field and discloses a rectification equipment for chemical production, which comprises a base, the inside of the base is provided with a bearing assembly for bearing fillers, the bearing assembly comprises a cross support frame, the cross support frame is fixed in the inside of the base, the top of the two sides of the cross support frame is fixed with a limiting shaft, the middle position of the bottom of the cross support frame is fixed with a protective shell, the inside of the protective shell is fixed with a motor, the output shaft of the motor is fixed with a lead screw, and the lead screw is rotationally connected with the cross support frame. The rectification equipment for chemical production is characterized in that the bearing assembly is used to make the square frame and the arc-shaped frame in a folded state and sleeved on the surface of the limiting shaft and the lead screw, the square frame is positioned by the lead screw, the center line of the square frame is collinear with the center line of the lead screw, the arc-shaped frame is prevented from being in contact with the inner wall of the tower cylinder during installation and being damaged, and the mass transfer efficiency of the fillers in the square frame and the arc-shaped frame is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the chemical technology field, specifically to a rectification equipment for chemical production. BACKGROUND

[0002] Rectification is a separation process that separates each component in a mixture by using the different volatility of each component, so in the process of chemical production and manufacturing, rectification equipment is often used, and common rectification equipment includes plate rectification tower and packing rectification tower, wherein the packing tower is a gas-liquid mass transfer equipment with a large amount of packing as the phase contact component, the commonly used packing of the rectification packing tower includes bulk packing and structured packing, and the wire mesh corrugated packing is a commonly used packing in the rectification packing tower.

[0003] At present, the packing tower on the market is usually a vertical cylinder, and the wire mesh corrugated packing is designed as a disc, when the disc-shaped wire mesh corrugated packing is placed, the packing is placed in the inner part of the tower cylinder by hoisting equipment layer by layer, but the tower cylinder and the packing do not match perfectly, when the packing is placed, the edge of the packing often collides with the inner wall of the cylinder body, causing damage, and then causing a gap between the packing and the inner wall of the cylinder body after the packing is placed, thereby increasing the wall flow and reducing the gas-liquid mass transfer efficiency. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a rectification equipment for chemical production, which solves the problems raised in the background art.

[0005] The present application provides the following technical scheme: a rectification equipment for chemical production, comprising a base, a bearing assembly for bearing packing is arranged in the base;

[0006] The bearing assembly comprises a cross support frame fixed in the inner part of the base, limit shafts are fixed on the top of the two sides of the cross support frame, a protective shell is fixed at the middle position of the bottom of the cross support frame, a motor is fixed in the protective shell, a lead screw is fixed on the output shaft of the motor, and the lead screw is rotationally connected with the cross support frame;

[0007] A square frame is threadedly connected to the surface of the lead screw, triangular supports are fixed on the surface of the four side frames of the square frame, an insertion slot is arranged at the middle position of the top of the square frame, a clamping groove is arranged in the insertion slot, hinges are fixed on the two sides of the top of the square frame, an arc-shaped frame is hingedly connected to the square frame through the hinges, and wire mesh corrugated packings are fixed in the square frame and the arc-shaped frame.

[0008] Optionally, a gas inlet pipe is fixed on one side of the surface of the base, a tower cylinder is fixed on the top of the base, a top cover is fixed on the top of the tower cylinder, and a water inlet pipe is fixed on one side of the surface of the top cover.

[0009] Optionally, the inside of the top cover is fixed with a liquid distributor, the side of the base away from the air inlet pipe is provided with a drainage port, and the top of the top cover is provided with an exhaust port.

[0010] Optionally, the inner wall of the square frame is rotationally connected with a rotating shaft, the surface of the rotating shaft is fixed with a push plate, the push plates located at the middle positions of the rotating shafts are hingedly connected with each other, the surface of the push plate close to the slot is hingedly connected with a linkage rod, and the surface of the push plate close to the linkage rod is fixed with a first spring.

[0011] Optionally, the two sides of the limiting shaft are provided with limiting grooves, one end of the linkage rod located in the slot is slidably connected with the limiting grooves, the two sides of the top end of the push plate are fixed with soft hair clusters, and the soft hair clusters abut against the wire mesh corrugated filler.

[0012] Optionally, the surface of the arc-shaped frame is clamped with an arc-shaped plate, the arc-shaped plates are connected through filter screens, the bottom of the arc-shaped plate is fixed with a supporting leg, the side of the supporting leg away from the arc-shaped frame is fixed with a fin, and the side of the supporting leg close to the arc-shaped frame is fixed with a fixed pin.

[0013] Optionally, the surface of the arc-shaped frame is provided with a drain hole, and the fixed pin is slidably connected with the drain hole.

[0014] Optionally, the inner wall of the side of the arc-shaped frame close to the slot is provided with a insertion hole, the inside of the insertion hole is fixed with an elastic rope, the inside of the insertion hole is slidably connected with a U-shaped ejector rod, the U-shaped ejector rod is fixed with the elastic rope, and the surface of one end of the U-shaped ejector rod located outside the insertion hole is fixed with a pressing plate.

[0015] Optionally, the inside of the arc-shaped frame is provided with an embedded groove on the two sides of the insertion hole, the inside of the embedded groove is fixed with a second spring, the top of one end of the second spring is fixed with a top block, and the top block is slidably connected with the pressing plate.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The rectifying equipment for chemical production, through the bearing assembly, the square frame and the arc-shaped frame are in a folded state and are sleeved on the surfaces of the limiting shaft and the lead screw, the square frame is positioned by the lead screw, the center line of the square frame is collinear with the center line of the lead screw, the arc-shaped frame is prevented from being damaged by contacting the inner wall of the tower drum during installation, and the mass transfer efficiency of the fillers in the square frame and the arc-shaped frame is improved.

[0018] 2、The rectification equipment for chemical production, through the controller control motor drive linkage rod repeatedly in the inside of the limiting groove, in the process of linkage rod lifting, through the limiting groove push linkage rod transmission shaft and the push plate repeatedly overturn, the push plate in the process of overturning, drive the soft hair cluster to clean the packing above it, reduce the liquid adsorbed on the packing surface due to its own tension, improve the efficiency of rectification. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the structural schematic view of the application;

[0020] Figure 2 It is the internal view of the structure of the top cover of the application;

[0021] Figure 3 It is the internal view of the structure of the tower drum of the application;

[0022] Figure 4 It is the internal view of the structure of the base of the application;

[0023] Figure 5 It is the structural schematic view of the arc-shaped plate, filter screen and arc-shaped frame of the application;

[0024] Figure 6 It is the structure flip chart of the arc-shaped frame of the application;

[0025] Figure 7 It is the structural schematic view of the square frame and the shaft of the application;

[0026] Figure 8 It is the structural schematic view of the arc-shaped plate, support leg and fin of the application;

[0027] Figure 9 It is the structural section view of the arc-shaped frame of the application;

[0028] Figure 10 It is the structural section view of the square frame of the application;

[0029] Figure 11 It is Figure 9 The local enlarged view of A in the middle;

[0030] Figure 12 It is Figure 10 The local enlarged view of B in the middle.

[0031] In the figure: 1, base; 11, air inlet pipe; 12, tower drum; 13, top cover; 14, water inlet pipe; 2, liquid distributor; 3, cross support frame; 31, limiting shaft; 32, protective shell; 33, motor; 34, lead screw; 4, square frame; 401, triangular support; 41, slot; 411, clamping groove; 42, hinge; 43, arc-shaped frame; 5, rotating shaft; 51, push plate; 52, hinge set; 53, linkage rod; 54, first spring; 55, limiting groove; 56, soft hair cluster; 6, arc-shaped plate; 61, filter screen; 62, supporting leg; 63, fin; 64, fixing pin; 7, drain hole; 8, insertion hole; 81, elastic rope; 82, U-shaped ejector rod; 83, pressing plate; 84, embedded groove; 85, second spring; 86, top block. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Embodiment one: please refer to Figures 1-12 A rectification device for chemical production, comprising a base 1, the inside of the base 1 is provided with a bearing assembly for bearing the packing, the bearing assembly comprises a cross support frame 3, the cross support frame 3 is fixed in the inside of the base 1, the top of both sides of the cross support frame 3 is fixed with a limiting shaft 31, the middle position of the bottom of the cross support frame 3 is fixed with a protective shell 32, the inside of the protective shell 32 is fixed with a motor 33, the output shaft of the motor 33 is fixed with a lead screw 34, and the lead screw 34 is rotationally connected with the cross support frame 3;

[0034] The surface of the lead screw 34 is threadedly connected with a square frame 4, the surface of four edge frames of the square frame 4 is fixed with a triangular support 401, the middle position of the top of the edge frame of the square frame 4 is provided with a slot 41, the inside of the slot 41 is provided with a clamping groove 411, both sides of the top of the square frame 4 located in the slot 41 are fixed with a hinge 42, the square frame 4 is hingedly connected with an arc-shaped frame 43 through the hinge 42, and the inside of the square frame 4 and the arc-shaped frame 43 is fixed with a wire mesh corrugated packing;

[0035] One side of the surface of the base 1 is fixed with an air inlet pipe 11, the top of the base 1 is fixed with a tower drum 12, the top of the tower drum 12 is fixed with a top cover 13, one side of the surface of the top cover 13 is fixed with a water inlet pipe 14, the inside of the top cover 13 is fixed with a liquid distributor 2, one side of the base 1 away from the air inlet pipe 11 is provided with a drain outlet, and the top of the top cover 13 is provided with an exhaust port.

[0036] In the specific operation process, first, the top cover 13 is adjusted away from the top of the tower drum 12 by the lifting device, then a proper number of square frames 4 are selected, and the arc-shaped frame 43 around each square frame 4 is turned towards the square frame 4, so that the square frame 4 and the arc-shaped frame 43 are in a vertically folded state, then the square frame 4 is lifted to the inside of the tower drum 12 by the lifting equipment, and the square frame 4 is sleeved on the surface of the limiting shaft 31 and the lead screw 34, since the square frame 4 and the arc-shaped frame 43 are in a folded state, the arc-shaped frame 43 is prevented from touching the inner wall of the tower drum 12, thereby improving the safety of the installation of the square frame 4.

[0037] When the first square frame 4 is sleeved on the surface of the lead screw 34, the motor 33 is started by the controller, so that the motor 33 drives the lead screw 34 to rotate, the lead screw 34 drives the square frame 4 to move downward along the vertical direction of the lead screw 34 at a specified height, so that the falling height is the same as the height of the square frame 4 itself.

[0038] Then, the second square frame 4 in the folded state is sleeved on the surface of the limiting shaft 31 and the lead screw 34 again, in the sleeving process, the triangular support 401 on the surface of the second square frame 4 is in contact with the arc-shaped frame 43 hinged to the edge frame of the first square frame 4, the triangular support 401 of the second square frame 4 applies pressure to the arc-shaped frame 43 of the first square frame 4, so that the arc-shaped frame 43 of the first square frame 4 is turned outward to a horizontal state, and then the first square frame 4 is completely restored to a disc shape, then the second square frame 4 is sleeved on the surface of the limiting shaft 31 and the lead screw 34, and the first square frame 4 supports and lifts the second square frame 4.

[0039] Then, according to the above steps, each square frame 4 is sleeved, the motor 33 is controlled to drive the lead screw 34 to rotate quantitatively, when all the square frames 4 are sleeved on the surface of the limiting shaft 31 and the lead screw 34, the first square frame 4 reaches the top of the cross support frame 3 at the same time, at this time, the cross support frame 3 supports all the square frames 4.

[0040] When all the square frames 4 are installed in the inside of the tower drum 12, the top cover 13 can be lifted to the top of the tower drum 12 and fixed on the top of the tower drum 12 by bolts, then the inside of the top cover 13 is supplied with liquid through the water inlet pipe 14, the liquid is distributed by the liquid distributor 2 and sprayed on the surface of the fillings in the square frame 4 and the arc-shaped frame 43, air is supplied through the air inlet pipe 11, then the gas-liquid two-phase is transmitted in the wire mesh corrugated filler installed in the square frame 4 and the arc-shaped frame 43, and then the exhaust gas is discharged through the exhaust port at the top of the top cover 13, and the waste water is discharged through the drain port of the base 1, here is the process of chemical rectification of the rectification filler tower in the prior art, which will not be described here;

[0041] Further, when all the square frames 4 are installed, rectification operation can be performed, in the rectification process, the motor 33 is controlled by the controller to perform cyclic forward and reverse rotation, so that all the square frames 4 are repeatedly lifted along the vertical direction of the lead screw 34 and the limiting shaft 31, and as the motor 33 repeatedly lifts the square frame 4 on the surface of the lead screw 34, the speed of each square frame 4 contacting with gas and liquid is further accelerated, thereby improving the efficiency of gas-liquid two-phase rectification.

[0042] Compared with the traditional rectification packing tower, when the packing is replaced, first, the top cover 13 is adjusted away from the top of the tower barrel 12, then the first layer of square frames 4 is taken out from the surface of the lead screw 34, then the motor 33 is reversed by the controller, so that the motor 33 drives the remaining square frames 4 to reverse through the lead screw 34, and then the remaining square frames 4 are lifted along the vertical direction of the lead screw 34, so that the square frames 4 to be taken out are always located at the inlet of the tower barrel 12, which facilitates the installation of the hook and rope, and avoids the hook from being deeply inserted into the liquid distributor 2, thereby avoiding the damage to the inner wall of the liquid distributor 2 or the square frame 4 and the arc-shaped frame 43, and improving the safety of hoisting the square frame 4.

[0043] It should be noted that all the devices of the present application are controlled by the controller, wherein the square frame 4 is an independent structure, and the arc-shaped frame 43 is hinged with the square frame 4 through the hinge 42, that is, each layer of packing is composed of one square frame 4 and four arc-shaped frames 43, and the square frame 4 and the arc-shaped frame 43 can be replaced separately, thereby saving the replacement cost.

[0044] In the embodiment two, the inner wall of the square frame 4 is rotatably connected with a rotating shaft 5, the surface of the rotating shaft 5 is fixedly connected with a push plate 51, the push plates 51 located at the middle positions of the rotating shafts 5 are hingedly connected with each other through a hinge group 52, the surface of the push plate 51 close to the slot 41 is hingedly connected with a linkage rod 53, the surface of the push plate 51 close to the linkage rod 53 is fixedly connected with a first spring 54, the limiting shaft 31 is provided with a limiting slot 55 on both sides, one end of the linkage rod 53 located in the slot 41 is slidably connected with the limiting slot 55, the top of the push plate 51 is fixedly connected with a soft hair cluster 56, and the soft hair cluster 56 is in abutment with the wire mesh corrugated packing.

[0045] Specifically, based on the embodiment one, compared with the traditional wire mesh corrugated packing, in the rectification process, the packing is easily collapsed under the impact of liquid, thereby causing part of the flow channel of the packing to shrink and close, resulting in uneven liquid distribution, therefore, the packing is supported by the rotating shaft 5 in the present application, so as to ensure that the packing will not collapse in the rectification process, improve the smoothness of the flow channel of the packing and the uniformity of the liquid distribution, and thereby improve the efficiency of rectification.

[0046] Further, in the lifting process, the square frame 4 drives the rotating shaft 5 to lift synchronously, and the rotating shaft 5 drives the push plate 51 and the linkage rod 53 to lift. Since the limiting shaft 31 is in sliding connection with the insertion slot 41, one end of the linkage rod 53 located in the insertion slot 41 is in sliding connection with the limiting slot 55. According to the description, the limiting slot 55 is continuously and uniformly opened, and the top end and the bottom end of the limiting slot 55 are both arranged in an arc shape. Figure 12

[0047] Therefore, when the motor 33 drives the linkage rod 53 to perform the lifting movement, the linkage rod 53 performs the lifting sliding in the inside of the limiting slot 55, and in the sliding process, is limited by the top end and the bottom end of the limiting slot 55, so that the arc-shaped top end and the bottom end of the limiting slot 55 repeatedly push the first spring 54, so that the first spring 54 pushes the push plate 51 and drives the rotating shaft 5 to overturn. When the rotating shaft 5 overturns, under the hinging action of the hinge set 52, each rotating shaft 5 and push plate 51 are in the overturned state.

[0048] When the linkage rod 53 is located in the inner cavity of the limiting slot 55 and does not contact the top end and the bottom end of the limiting slot 55 under the action of the first spring 54, the linkage rod 53 loses the limitation of the limiting slot 55 and resets under the action of the first spring 54. When the linkage rod 53 resets, it drives each rotating shaft 5 and push plate 51 to reverse overturn.

[0049] Therefore, when the linkage rod 53 is repeatedly pushed in the limiting slot 55, the limiting slot 55 drives each rotating shaft 5 and push plate 51 to perform the cyclic reciprocating overturning. In the overturning process, the limiting slot 55 drives the soft hair cluster 56 on the top thereof to overturn synchronously. Since the limiting slot 55 is in contact with the wire mesh corrugated filler, it plays a role of cleaning the filler, avoids that the liquid is adsorbed on the surface of the bottom of the filler due to its own tension, and thus improves the efficiency of the gas-liquid mass transfer, that is, improves the efficiency of the rectification.

[0050] Further, in the overturning process of the push plate 51, the liquid dripping out of the filler can be distributed again, avoiding that the liquid dripping out of the filler is too concentrated. Under the distribution action of the push plate 51, the liquid is uniformly distributed, thus improving the range of the gas-liquid mass transfer and the efficiency of the rectification.

[0051] In the embodiment three, the surface of the arc-shaped frame 43 is clamped with the arc-shaped plate 6, each arc-shaped plate 6 is connected through the filter screen 61, the bottom of the arc-shaped plate 6 is fixed with the supporting leg 62, the side away from the arc-shaped frame 43 of the supporting leg 62 is fixed with the fin 63, the side close to the arc-shaped frame 43 of the supporting leg 62 is fixed with the fixed pin 64, the surface of the arc-shaped frame 43 is provided with the water drain hole 7, the fixed pin 64 is in sliding connection with the water drain hole 7, and the inner wall of the side close to the insertion slot 41 of the arc-shaped frame 43 is provided with the insertion hole 8.

[0052] ​The inside of the insertion hole 8 is fixed with an elastic rope 81, the inside of the insertion hole 8 is slidingly connected with a U-shaped ejector rod 82, the U-shaped ejector rod 82 is fixed with the elastic rope 81, the surface of one end of the U-shaped ejector rod 82 located outside the insertion hole 8 is fixed with a pressing plate 83, the inside of the arc-shaped frame 43 located on both sides of the insertion hole 8 is provided with an embedded groove 84, the inside of the embedded groove 84 is fixed with a second spring 85, the top of one end of the second spring 85 is fixed with a top block 86, and the top block 86 is slidingly connected with the pressing plate 83;

[0053] Specifically, on the basis of example one, before placing the square frame 4, the arc-shaped frame 43 around the square frame 4 needs to be folded, so that the arc-shaped frame 43 is perpendicular to the square frame 4. In this process, the arc-shaped plate 6 can be sleeved outside the arc-shaped frame 43, and the fixing pin 64 is inserted into the inside of the drain hole 7, so that the arc-shaped plate 6 is fixed on the surface of the square frame 4 and the arc-shaped frame 43. Then, when the square frame 4 is sleeved on the surface of the lead screw 34, the middle part of the filter screen 61 is sleeved on the surface of the lead screw 34. After the arc-shaped frame 43 returns to the horizontal state, the arc-shaped frame 43 drives the arc-shaped plate 6 to unfold, so that the arc-shaped plate 6 is stretched to the horizontal state, and then the filter screen 61 completely covers the surface of the arc-shaped frame 43 and the square frame 4.

[0054] The filter screen 61 pre-intercepts the particles in the liquid, reduces the impact force of the liquid and the particles in the liquid on the filler, prolongs the service life of the filler, reduces the probability of the filler collapsing, and also reduces the probability of the filler flow channel being blocked by the particles, thereby improving the efficiency of the gas-liquid two-phase mass transfer of the filler and improving the efficiency of rectification.

[0055] When the arc-shaped plate 6 is flipped to the horizontal state with the arc-shaped frame 43, the arc-shaped plate 6 drives the supporting leg 62 and the fin 63 to flip synchronously, so that the fin 63 is attached to the inner wall of the tower drum 12, thereby making up the gap between the arc-shaped frame 43 and the inner wall of the tower drum 12. When the liquid splashes onto the inner wall of the tower drum 12, it can be collected in the inside of the fin 63, and the liquid collected by the fin 63 is guided into the inside of the arc-shaped frame 43 again through the drain hole 7, thereby reducing the wall flow in the tower drum 12, improving the efficiency of gas-liquid mass transfer, and further improving the effect of rectification.

[0056] Further, on the basis of example two, when the motor 33 drives the square frame 4 to repeatedly rise and fall, the arc-shaped frame 43 drives the U-shaped ejector rod 82 to repeatedly move. According to the description of the accompanying drawings Figure 11 , one end of the U-shaped ejector rod 82 located outside the insertion hole 8 is slidingly connected with the limiting groove 55, so that the limiting groove 55 and the top end and the bottom end thereof can limit the U-shaped ejector rod 82. That is, when the arc-shaped frame 43 drives the U-shaped ejector rod 82 to repeatedly move in the inside of the limiting groove 55, the top end and the bottom end of the limiting groove 55 repeatedly push the U-shaped ejector rod 82.

[0057] When the U-shaped ejector 82 is pushed, the pressing plate 83 is moved towards the direction of the top block 86 until the pressing plate 83 abuts against the top block 86 and extrudes the top block 86. When the U-shaped ejector 82 is not in contact with the top end and the bottom end of the limiting groove 55, the U-shaped ejector 82 is reset under the action of the elastic cord 81, and then the top block 86 is reset under the action of the second spring 85. The reset top block 86 is in contact with the filter screen 61, thereby vibrating the filter screen 61, making the particles on the surface of the filter screen 61 displace, reducing the probability of the particles blocking the filter screen 61, thereby improving the smoothness of the filter screen 61 and the efficiency of rectification.

[0058] In addition, in the second embodiment, when the motor 33 drives the rotating shaft 5 and the push plate 51 to overturn below the filler, the bottom of the push plate 51 can perform a cleaning operation on the filter screen 61 covered on the surface of the square frame 4 below, further reducing the probability of the filter screen 61 being blocked by particles.

[0059] It should be noted that the fin 63 is made of 316L stainless steel foil, and the filter screen 61 is made of stainless steel filter screen. In the first embodiment, when the arc-shaped frame 43 is folded, the arc-shaped frame 43 drives the U-shaped ejector 82 to overturn synchronously. In the overturning process, the U-shaped ejector 82 is clamped into the inside of the clamping groove 411, thereby limiting the U-shaped ejector 82 through the friction force of the clamping groove 411, and then limiting the arc-shaped frame 43 through the U-shaped ejector 82, thereby improving the stability of the arc-shaped frame 43 after being folded.

[0060] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A rectification apparatus for chemical production, comprising a base (1), characterized in that: The inside of the base (1) is provided with a bearing assembly for bearing filler; The bearing assembly comprises a cross support frame (3) fixed in the inside of the base (1), the top of the two sides of the cross support frame (3) is fixed with a limiting shaft (31), the middle position of the bottom of the cross support frame (3) is fixed with a protective shell (32), the inside of the protective shell (32) is fixed with a motor (33), the output shaft of the motor (33) is fixed with a lead screw (34), and the lead screw (34) is rotationally connected with the cross support frame (3); The surface of the lead screw (34) is threadedly connected with a square frame (4), the surface of the four edge frames of the square frame (4) is fixed with a triangular support (401), the middle position of the top of the edge frame of the square frame (4) is provided with a slot (41), the inside of the slot (41) is provided with a clamping groove (411), the top of the square frame (4) is fixed with a hinge (42) on both sides of the slot (41), and the square frame (4) is hingedly connected with an arc-shaped frame (43) through the hinge (42). The inside of the square frame (4) and the arc-shaped frame (43) is fixed with a wire mesh corrugated filler; The inner wall of the square frame (4) is rotationally connected with a rotating shaft (5), the surface of the rotating shaft (5) is fixed with a dial plate (51), the dial plate (51) in the middle position of each rotating shaft (5) is hingedly connected with each other through a hinge group (52), the surface of the dial plate (51) close to the slot (41) is hingedly connected with a linkage rod (53), and the surface of the dial plate (51) close to the linkage rod (53) is fixed with a first spring (54); The two sides of the limiting shaft (31) are provided with a limiting groove (55), one end of the linkage rod (53) located in the slot (41) is slidably connected with the limiting groove (55), the two sides of the top end of the dial plate (51) are fixed with a soft hair cluster (56), and the soft hair cluster (56) abuts against the wire mesh corrugated filler.

2. The rectification apparatus for chemical production according to claim 1, characterized by: One side of the surface of the base (1) is fixed with an air inlet pipe (11), the top of the base (1) is fixed with a tower cylinder (12), the top of the tower cylinder (12) is fixed with a top cover (13), and one side of the surface of the top cover (13) is fixed with a water inlet pipe (14).

3. The rectification apparatus for chemical production according to claim 2, characterized by: The inside of the top cover (13) is fixed with a liquid distributor (2), one side of the base (1) away from the air inlet pipe (11) is provided with a drain port, and the top of the top cover (13) is provided with an exhaust port.

4. The rectification apparatus for chemical production according to claim 1, characterized by: The surface of the arc-shaped frame (43) is clamped with an arc-shaped plate (6), and each arc-shaped plate (6) is connected through a filter screen (61), the bottom of the arc-shaped plate (6) is fixed with a supporting leg (62), one side of the supporting leg (62) away from the arc-shaped frame (43) is fixed with a fin (63), and one side of the supporting leg (62) close to the arc-shaped frame (43) is fixed with a fixed pin (64).

5. The rectification apparatus for chemical production according to claim 4, characterized by: The surface of the arc-shaped frame (43) is provided with a drain hole (7), and the fixed pin (64) is slidably connected with the drain hole (7). The surface of the arc-shaped frame (43) is clamped with an arc-shaped plate (6), and each arc-shaped plate (6) is connected through a filter screen (61), the bottom of the arc-shaped plate (6) is fixed with a supporting leg (62), one side of the supporting leg (62) away from the arc-shaped frame (43) is fixed with a fin (63), and one side of the supporting leg (62) close to the arc-shaped frame (43) is fixed with a fixed pin (64).

6. The rectification apparatus for chemical production according to claim 1, characterized by: The arc-shaped frame (43) is provided with a socket (8) on the inner wall of the side close to the slot (41), the socket (8) is fixedly provided with an elastic rope (81), the socket (8) is slidably connected with a U-shaped ejector rod (82), the U-shaped ejector rod (82) is fixed with the elastic rope (81), and the surface of the outer end of the U-shaped ejector rod (82) is fixedly provided with a pressing plate (83).

7. The rectification apparatus for chemical production according to claim 6, characterized by: The arc-shaped frame (43) is provided with an embedded groove (84) on the two sides of the socket (8), the embedded groove (84) is fixedly provided with a second spring (85), the top of one end of the second spring (85) is fixedly provided with a top block (86), and the top block (86) is slidably connected with the pressing plate (83).

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