Water washing tower with multiple water washing functions

Abstract

The utility model relates to the technical field of water scrubbers, in particular to a multi-washing water scrubber which comprises a scrubber body and a washing mechanism, an exhaust port is formed in the top end of the tower body, an air inlet pipe is arranged at the bottom end, a check valve is arranged on the air inlet pipe, and a sealing door body is arranged at the side end of the tower body; the water washing mechanism is arranged in the tower body, the water washing mechanism is composed of the driving assembly and the spraying assembly, the spraying assembly can be driven by the driving assembly to conduct multiple water washing on tail gas generated during pyromellitic acid production, the cleanliness of the tail gas is improved, and pollutant emission is avoided. Through the arrangement of the filtering mechanism, the surface area of tail gas reaction during production of pyromellitic acid is increased, so that the reaction rate is increased, and the decontamination efficiency is enhanced; the spraying assembly is driven to rotate through the driving assembly, multiple washing can be conducted on tail gas generated during pyromellitic acid production, the filtering efficiency is further improved, and tail gas emission pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water washing towers, in particular to a water washing tower with multiple water washings. Background Art

[0002] Pyromellitic acid is the main raw material for synthesizing polyimide, octyl pyromellitic acid, etc. Pyromellitic acid is also known as anhydride. Its pure product is white or slightly yellow crystals. A large amount of toxic exhaust gas is generated during the production of pyromellitic acid. Therefore, a water scrubber is needed to treat the exhaust gas in the production of pyromellitic acid to avoid air pollution. Utility Model Content

[0003] The utility model aims to solve the problems existing in the background technology and proposes a water washing tower with multiple water washing.

[0004] The technical solution of the utility model is as follows: a water washing tower with multiple water washings, comprising a tower body, a top end of which is provided with an exhaust port, a bottom end of which is provided with an air inlet pipe, the air inlet pipe is provided with a check valve, and a side end of the tower body is provided with a sealing door body; and a water washing mechanism, which is arranged inside the tower body, and the water washing mechanism is composed of a driving component and a spraying component. The spraying component can perform multiple water washings on the tail gas during the production of pyromellitic acid through the drive of the driving component, thereby improving the cleanliness of the tail gas and avoiding pollution emissions.

[0005] Preferably, the tower body includes a first tower body, on the top of which a second tower body is detachably mounted, an air inlet pipe is arranged at the bottom end of the first tower body, and a sealing door body is arranged on the side wall of the first tower body; and a third tower body, which is detachably connected to the top of the second tower body, and an exhaust port is arranged at the top of the third tower body.

[0006] Preferably, the driving assembly includes a rotating seat, which is provided with two groups, and the second gear ring and the first gear ring are respectively installed on the outer circumference of the two groups of rotating seats; and a rotating shaft, which is rotatably connected to the tower body, and the rotating shaft is driven to rotate by a motor installed outside the tower body; a first gear and a second gear are provided on the rotating shaft, the first gear is meshed with the first gear ring, and the second gear is meshed with the second gear ring.

[0007] Preferably, the diameter of the first gear is different from the diameter of the second gear, and the outer diameter of the first gear ring is different from the outer diameter of the second gear ring.

[0008] Preferably, the water washing component includes a diverter seat, which is provided with two groups, wherein the top of one group of diverter seats is rotatably connected to a liquid inlet pipe, the other end of the liquid inlet pipe is connected to the tower body, and a connecting pipe is rotatably connected between the two groups of diverter seats. Multiple groups of diverter pipes are evenly installed on the side walls of the two groups of diverter seats, the other end of the diverter pipe is connected to the corresponding inner wall of the rotating seat, and multiple groups of nozzles are evenly installed on the bottom end of the diverter pipe.

[0009] Preferably, a filtering mechanism is detachably mounted on the bottom of the tower body. The filtering mechanism is located above the output end of the air inlet pipe and is used to intercept and filter some pollutants in the tail gas during the production of pyromellitic acid.

[0010] Preferably, the filtering mechanism includes a limit seat, which is installed on the inner wall of the tower body; a sliding seat, which is slidably connected to the limit seat, and the sliding seat abuts against the sealing door body on the tower body; and a filling frame, which is installed on the top of the sliding seat, and the top edge of the filling frame abuts against the inner wall of the tower body and the sealing door body respectively.

[0011] Compared with the prior art, the above-mentioned technical solution of the present invention has the following beneficial technical effects: the present invention facilitates regular maintenance of internal components by making the tower body detachable; the setting of the filtering mechanism facilitates increasing the surface area of ​​the exhaust gas reaction during the production of pyromellitic acid, thereby accelerating the reaction rate and enhancing the decontamination efficiency; and the driving component drives the spray component to rotate, so that the exhaust gas during the production of pyromellitic acid can be washed with multiple water washes, further improving the filtering efficiency and reducing the exhaust gas emission pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the internal structure of the tower body of the present utility model;

[0014] Figure 3 This is a schematic diagram of the water washing mechanism structure of the utility model;

[0015] Figure 4 This is a schematic diagram of the filter structure of the utility model.

[0016] Figure numerals: 1, first tower body; 101, second tower body; 102, third tower body; 2, air inlet pipe; 3, limiting seat; 301, sliding seat; 302, finger groove; 303, filling frame; 4, liquid inlet pipe; 401, diverter seat; 402, connecting pipe; 403, diverter pipe; 5, rotating seat; 501, second gear ring; 502, first gear ring; 503, rotating shaft; 504, first gear; 505, second gear. DETAILED DESCRIPTION

[0017] Example 1

[0018] like Figures 1 to 3As shown, the utility model proposes a multiple water-washing water washing tower, comprising a tower body and a water washing mechanism; an exhaust port is provided at the top of the tower body, an air inlet pipe 2 is provided at the bottom end, a check valve is provided on the air inlet pipe 2 to prevent backflow of exhaust gas or water washing liquid, and a sealing door body is provided at the side end of the tower body; the water washing mechanism is arranged inside the tower body, and the water washing mechanism is composed of a driving component and a spraying component. The spraying component can perform multiple water washing on the exhaust gas during the production of pyromellitic acid through the drive of the driving component, thereby improving the cleanliness of the exhaust gas and avoiding pollution emissions.

[0019] Furthermore, the tower body includes a first tower body 1 and a third tower body 102; the second tower body 101 is detachably mounted on the top of the first tower body 1 by bolts, the air intake pipe 2 is arranged at the bottom end of the first tower body 1, and the sealing door body is arranged on the side wall of the first tower body 1; the third tower body 102 is detachably connected to the top of the second tower body 101 by bolts, and the exhaust port is arranged at the top of the third tower body 102.

[0020] By removing the corresponding sets of bolts, the first tower body 1, the second tower body 101 and the third tower body 102 can be dismantled respectively, so as to facilitate the inspection and maintenance of the components inside the tower bodies.

[0021] Furthermore, the driving assembly includes a rotating base 5 and a rotating shaft 503; there are two groups of rotating bases 5, and the two groups of rotating bases 5 are respectively rotatably connected to the inside of the second tower body 101 and the first tower body 1 in the tower body, and the outer circumferential surfaces of the two groups of rotating bases 5 are respectively installed with a second gear ring 501 and a first gear ring 502; the rotating shaft 503 is rotatably connected to the tower body, and the rotating shaft 503 is driven to rotate by a motor installed on the outside of the tower body. The rotating shaft 503 is composed of two groups of rotating rods that are detachably connected. When the tower body is disassembled, the two groups of rotating rods can be disassembled to avoid interfering with the disassembly of the tower body; a first gear 504 and a second gear 505 are provided on the rotating shaft 503, the first gear 504 is meshed with the first gear ring 502, and the second gear 505 is meshed with the second gear ring 501.

[0022] Furthermore, the diameter of the first gear 504 is different from the diameter of the second gear 505, and the outer diameter of the first gear ring 502 is different from the outer diameter of the second gear ring 501, so that the rotation speeds of the two sets of rotating seats 5 are different, thereby facilitating the improvement of the coverage rate of the spray assembly when spraying downward, further increasing the contact area between the water washing liquid and the exhaust gas during the production of pyromellitic acid, and improving the water washing efficiency.

[0023] Furthermore, the water washing component includes a diverter seat 401; the diverter seat 401 is provided with two groups, wherein the top of one group of diverter seats 401 is rotatably connected to a liquid inlet pipe 4, and the other end of the liquid inlet pipe 4 is connected to the third tower body 102 in the tower body, and a connecting pipe 402 is rotatably connected between the two groups of diverter seats 401, and multiple groups of diverter pipes 403 are evenly installed on the side walls of the two groups of diverter seats 401, and the other end of the diverter pipe 403 is connected to the inner wall of the corresponding rotating seat 5, and multiple groups of nozzles are evenly installed on the bottom end of the diverter pipe 403.

[0024] In this embodiment, the washing liquid is connected to the liquid inlet valve on the liquid inlet pipe 4, and the washing liquid is transported to the diverter seat 401 through the liquid inlet pipe 4, and the washing liquid gradually enters the multi-component manifold 403 and is then sprayed downward by the multiple groups of nozzles; at the same time, the controller starts the motor to drive the rotating shaft 503 to rotate, thereby driving the first gear 504 and the second gear 505 to rotate, so that the corresponding first gear ring 502 and the second gear ring 501 rotate, thereby driving the two groups of rotating seats 5 to rotate at different speeds, thereby driving the multi-component manifold 403 on the two groups of manifold seats 401 to rotate at different speeds. Through multiple water washings, the contact area between the washing liquid and the tail gas during the production of pyromellitic acid is increased. The tail gas during the production of pyromellitic acid enters the tower body through the air inlet pipe 2 and can fully contact with the washing liquid sprayed from the nozzle, thereby completing the washing and filtration of the tail gas during the production of pyromellitic acid. The filtered gas is discharged from the exhaust port of the third tower body 102 in the tower body, and the waste liquid of the washing liquid is discharged from the drain valve at the bottom end of the first tower body 1.

[0025] Example 2

[0026] like Figure 1 、 Figure 2 and Figure 4 As shown, the utility model proposes a multiple water washing water washing tower. Compared with the first embodiment, the bottom end of the tower body is detachably installed with a filtering mechanism. The filtering mechanism is located above the output end of the air inlet pipe 2 and is used to intercept and filter some pollutants in the exhaust gas during the production of pyromellitic acid.

[0027] Furthermore, the filtering mechanism includes a limit seat 3, a sliding seat 301 and a filling frame 303; the limit seat 3 is installed on the inner wall of the first tower body 1 in the tower body; the sliding seat 301 is slidably connected to the limit seat 3, the sliding seat 301 is in contact with the sealing door body on the tower body, a finger groove 302 is provided on the sliding seat 301, and the sliding seat 301 is set in a mouth shape; the filling frame 303 is installed on the top of the sliding seat 301, and the top edge of the filling frame 303 is in contact with the inner wall of the tower body and the sealing door body respectively, to prevent some exhaust gas from being unfiltered during the production of pyromellitic acid.

[0028] In this embodiment, the sealing door on the first tower body 1 is opened, the sliding seat 301 is slid out of the limit seat 3 through the finger groove 302, and the filling frame 303 is filled with an appropriate amount of filler. The filling frame 303 is then pushed until the filling frame 303 abuts against the inner wall of the first tower body 1, and the sealing door is closed, and the filling frame 303 is pressed against the inside of the first tower body 1. When the exhaust gas during the production of pyromellitic acid enters the tower body through the air inlet pipe 2, it is first filtered by the filling frame 303, so that large particles of impurities are intercepted and then pass through the filler inside the filling frame 303. The surface of the filler has a certain adsorption property and can provide a large surface area, which can adsorb the pollutant molecules in the exhaust gas during the production of pyromellitic acid. The liquid sprayed by the water washing mechanism contacts the filler in the filling frame 303, so that the pollutants in the exhaust gas are fully contacted and reacted with the water washing liquid. The setting of the filler can increase the surface area for the reaction, accelerate the reaction rate, and enhance the decontamination efficiency.

[0029] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A multiple water washing water washing tower, characterized in that, include: The tower body is provided with an exhaust port at its top end, an air inlet pipe (2) at its bottom end, a check valve at the air inlet pipe (2), and a sealing door body at the side end of the tower body; And a water washing mechanism, which is arranged inside the tower body. The water washing mechanism consists of a driving component and a spraying component. The spraying component is driven by the driving component to perform multiple water washing on the tail gas during the production of pyromellitic acid, thereby improving the cleanliness of the tail gas and avoiding pollution emissions; The drive components include: The rotating seat (5) is provided with two groups, and the outer peripheral surfaces of the two groups of rotating seats (5) are respectively mounted with a second gear ring (501) and a first gear ring (502); and a rotating shaft (503) rotatably connected to the tower body, the rotating shaft (503) being driven to rotate by a motor installed outside the tower body; a first gear (504) and a second gear (505) being provided on the rotating shaft (503); the first gear (504) being meshed and connected with the first gear ring (502), and the second gear (505) being meshed and connected with the second gear ring (501); the diameter of the first gear (504) being different from the diameter of the second gear (505), and the outer diameter of the first gear ring (502) being different from the outer diameter of the second gear ring (501); The water washing components include: The diverter seat (401) is provided with two groups, wherein the top end of one group of diverter seats (401) is rotatably connected to a liquid inlet pipe (4), the other end of the liquid inlet pipe (4) is connected to the tower body, a connecting pipe (402) is rotatably connected between the two groups of diverter seats (401), multiple groups of diverter pipes (403) are evenly installed on the side walls of the two groups of diverter seats (401), the other end of the diverter pipe (403) is connected to the inner wall of the corresponding rotating seat (5), and multiple groups of nozzles are evenly installed on the bottom end of the diverter pipe (403).

2. A multiple water washing water washing tower according to claim 1, characterized in that, The tower includes: A first tower body (1) has a second tower body (101) detachably mounted on its top end, an air inlet pipe (2) is arranged at the bottom end of the first tower body (1), and a sealing door body is arranged on a side wall of the first tower body (1); and a third tower body (102) which is detachably connected to the top of the second tower body (101), and an exhaust port is arranged at the top of the third tower body (102).

3. A multiple water washing water washing tower according to claim 1, characterized in that, A filtering mechanism is detachably mounted on the bottom of the tower body. The filtering mechanism is located above the output end of the air inlet pipe (2) and is used to intercept and filter some pollutants in the tail gas during the production of pyromellitic acid.

4. A multiple water washing water washing tower according to claim 3, characterized in that, The filtering mechanism includes: A limiting seat (3) is installed on the inner wall of the tower body; A sliding seat (301) is slidably connected to the limiting seat (3), and the sliding seat (301) abuts against the sealing door body on the tower body; And a filling frame (303) is installed on the top of the sliding seat (301), and the top edge of the filling frame (303) is respectively in contact with the inner wall of the tower body and the sealing door body.

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