Diameter-dividing type washing tower for chemical production

Abstract

The invention discloses a diameter-dividing type washing tower for chemical production, and relates to the technical field of gas purification, the diameter-dividing type washing tower comprises a shell, an exhaust pipe is fixedly mounted at the top of the shell, an air outlet barrel is connected with the shell through the exhaust pipe, an air inlet pipe fixedly penetrates through the circumferential surface of the shell, a partition plate is fixedly mounted on the inner wall of the shell, and the partition plate is fixedly mounted on the outer wall of the shell. The waterproof motor is fixedly installed at the bottom of the inner wall of the shell, one end of the circulating water pipe fixedly penetrates through the inner wall and the outer wall of the bottom of the shell, the other end of the circulating water pipe fixedly penetrates through the inner wall and the outer wall of the top of the shell, the water pump is fixedly installed on the circumferential face of the circulating water pipe, and the valve is rotationally installed at the control end of the water pump. The water pressure in the water pump can be observed through the pressure gauge, the water pressure is adjusted through the valve, and the air purifier is simple in overall structure, high in reliability and high in practicability.

Description

Technical Field

[0001] The invention relates to the technical field of gas purification, in particular to a split-diameter washing tower for chemical production. Background Art

[0002] The split-diameter scrubber is a common chemical equipment used for gas-liquid or liquid-liquid mass transfer operations, especially in gas absorption and chemical reaction processes.

[0003] The patent with patent announcement number CN206881447U relates to a washing tower, including a washing tower shell and a water supply pipe arranged on the outer side wall of the washing tower shell, one end of the water supply pipe is bent toward the washing tower shell and provided with a butt pipe, the washing tower shell is provided with a mounting hole, a spray pipe is rotatably provided on the inner side wall of the mounting hole, the outer side wall of the spray pipe and one end located outside the washing tower shell is fitted with the inner side wall of the butt pipe; the spray pipe is connected and provided with a plurality of spray heads; the outer side wall of the spray pipe and located outside the washing tower shell is provided with a sub-gear, the outer side wall of the washing tower shell is provided with a driving member, and the outer side wall of the driving member is provided with a transmission gear meshing with the sub-gear to drive the spray pipe to rotate. The key point of the technical solution is that the driving member drives the spray pipe to rotate, and at the same time, the spray head on the spray pipe rotates along the circumference of the spray pipe to spray the exhaust gas on both sides of the spray pipe, so as to effectively improve the effect of spraying the exhaust gas on both sides of the spray pipe.

[0004] In the above patent, the nozzles on the spray pipes are rotated along the circumference of the spray pipes at the same time to spray the exhaust gas on both sides of the spray pipes, thereby effectively improving the effect of spraying the exhaust gas on both sides of the spray pipes. However, after washing the chemical waste gas, if the recycled liquid medicine is not filtered, the chemical impurities in the medicine will affect the washing effect of the medicine, making it impossible to effectively wash the chemical waste gas, thereby reducing the reliability and accuracy of the equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a split-diameter washing tower for chemical production, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the present invention is implemented through the following technical solutions: a split-diameter washing tower for chemical production, comprising a shell and an air outlet, an exhaust pipe is fixedly installed on the top of the shell, the air outlet is connected to the shell through the exhaust pipe, an air inlet pipe is fixedly penetrated through the circumferential surface of the shell, a partition is fixedly installed on the inner wall of the shell, a medicine changing device and a spraying device are arranged on the inner wall of the shell, and a medicine feeding device is arranged on the back of the shell;

[0007] The dressing changing device comprises: a waterproof motor, a circulating water pipe, a water pump, a valve, a pressure gauge, a screw rod, a sleeve rod, a blade, a drain pipe, a filter plate and a water baffle. The waterproof motor is fixedly mounted on the bottom of the inner wall of the shell, one end of the circulating water pipe is fixedly penetrated through the inner and outer walls of the bottom of the shell, the other end of the circulating water pipe is fixedly penetrated through the inner and outer walls of the top of the shell, the water pump is fixedly mounted on the circumferential surface of the circulating water pipe, the valve is rotatably mounted on the control end of the water pump, the pressure gauge is fixedly mounted on the surface of the water pump, the screw rod is fixedly mounted on the top of the output end of the waterproof motor, and the A reciprocating spiral groove is provided on the circumferential surface of the screw rod, the sleeve rod is slidably installed on the inner wall of the reciprocating spiral groove, the blades are fixedly installed on the circumferential surface of the sleeve rod, the drain pipe is fixedly penetrated through the inner and outer walls of the shell, the filter plate is arranged on the inner wall of the drain pipe, and the water baffle is rotatably installed on the circumferential surface of the drain pipe. The rotation of the screw rod will drive the reciprocating spiral groove to rotate, the rotation of the reciprocating spiral groove will drive the sleeve rod to move back and forth, the reciprocating movement of the sleeve rod will drive the blades to move back and forth, and the reciprocating movement of the blades will stir the recyclable medicine at the bottom of the shell, and the medicine will carry impurities with it to flow to the drain pipe after being stirred.

[0008] According to the above technical solution, a button is provided on the surface of the water pump, and the water baffle is connected to the drain pipe through a connecting piece, and the button can control the working state of the water pump.

[0009] According to the above technical solution, the spraying device includes: a water pipe, an atomizing nozzle and a gear. The water pipe is rotatably installed on the circumference of the circulating water pipe, the water pipe is rotatably penetrated through the inner and outer walls of the shell, the atomizing nozzle is fixedly installed at the bottom of the water pipe, the atomizing nozzle is connected with the circulating water pipe through the water pipe, the gear is fixedly installed at one end of the water pipe away from the circulating water pipe, the water pump draws the medicine at the bottom of the shell into the water pipe through the circulating water pipe, and the atomizing nozzle atomizes the medicine in the water pipe and sprays it out.

[0010] According to the above technical solution, the spraying device includes: a sliding rod, a fixed plate, teeth and a sealing block. The sliding rod is slidably installed on the inner wall of the outer shell, the fixed plate is fixedly installed on the side of the sliding rod close to the atomizing nozzle, the teeth are fixedly installed on the surface of the fixed plate, the teeth are meshed with gears, the sealing block is fixedly installed on the top of the sliding rod, and the sealing block slides through the top of the outer shell. The movement of the sliding rod will drive the movement of the fixed plate, the movement of the fixed plate will drive the movement of the teeth, the rotation of the teeth will drive the rotation of the gears, the rotation of the gears will drive the water pipe to rotate, and the rotation of the water pipe will drive the atomizing nozzle to rotate.

[0011] According to the above technical solution, the slide rod contacts the blade, the surface of the sealing block is set to be L-shaped, and the side of the slide rod in contact with the blade is set to be an inclined surface. The inclined surface can enable the blade to push the slide rod to move.

[0012] According to the above technical scheme, the drug feeding device includes: a drug storage box, a drug feeding pipe, a solenoid valve, a drug adding pipe and a detector. The drug storage box is arranged on the back of the shell, one end of the drug feeding pipe is fixedly passed through the inner and outer walls of the drug storage box, and the other end of the drug feeding pipe is fixedly passed through the inner and outer walls of the shell, and the shell is connected to the drug storage box through the drug feeding pipe. The solenoid valve is fixedly installed on the circumferential surface of the drug feeding pipe, the drug adding pipe is fixedly passed through the inner and outer walls of the drug storage box, and the detector is fixedly installed on the bottom of the inner wall of the shell. The solenoid valve is started by the control module, and the solenoid valve opens the drug feeding pipe to allow the medicine in the medicine storage box to flow into the interior of the shell.

[0013] According to the above technical solution, a detection module and a control module are provided inside the detector, the control module is electrically connected to the solenoid valve, and the solenoid valve is started by the control module.

[0014] According to the above technical solution, the dosing device also includes: a steel cable, a fixing, a rotating shaft and a stirring plate, one end of the steel cable is fixedly installed on the bottom of the sealing block, the rotating shaft is rotatably installed on the inner wall of the medicine storage box, the other end of the steel cable is fixedly installed on the circumferential surface of the rotating shaft, the fixing is fixedly installed on the circumferential surface of the outer shell, and the stirring plate is fixedly installed on the circumferential surface of the rotating shaft. The rotation of the rotating shaft will drive the stirring plate to rotate, and the rotation of the stirring plate will stir the medicine in the medicine storage box.

[0015] The present invention provides a split-diameter washing tower for chemical production, which has the following beneficial effects:

[0016] (1) This invention uses a water pump to extract medicine liquid and then pumps it to the top through a circulating water pipe so that the medicine liquid can be recycled. The rising gas is sprayed with shower medicine liquid to make the exhaust gas reach the discharge standard. The water pressure in the water pump can be observed through a pressure gauge and adjusted through a valve. The overall structure is simple, reliable and practical. The impurities in the medicine liquid are driven to flow to the filter screen through the rotation of the blades, and the filter screen is cleaned to prevent the impurities from being effectively cleaned after being precipitated for a long time, resulting in the medicine liquid being unable to effectively achieve the washing effect, thereby improving the accuracy and reliability of the device.

[0017] (2) In this invention, after the medicine is delivered to the top by a water pump, the atomizing nozzle draws the medicine through a water pipe and sprays it in atomized form, thereby increasing the contact area between the exhaust gas and the medicine, improving the qualified rate and safety of the exhaust gas purification, and the movement of the sliding rod drives the movement of the teeth, the movement of the teeth drives the rotation of the gears, and the rotation of the gears drives the atomizing nozzle to swing repeatedly, so that when the exhaust gas is sprayed with medicine during its rising process, the swing of the atomizing nozzle will greatly increase the coverage area of ​​the medicine, further improving the reliability and purification efficiency of the exhaust gas purification.

[0018] (3) The invention detects the medicine through a detector and controls the solenoid valve to fill the medicine, thereby preventing the medicine from losing its chemical properties after long-term use, making it impossible to achieve the effect of exhaust gas purification, thereby improving the purification effect and reliability. The reciprocating movement of the steel cable drives the rotation of the shaft, and the rotation of the shaft drives the rotation of the stirring plate, thereby preventing the medicine in the medicine storage box from being stagnant for a long time or its own physical characteristics causing some components in the medicine to precipitate, resulting in the medicine added to the outer shell being unable to achieve the expected purification effect, thereby improving the applicability and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the position relationship between the partition and the shell of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the dressing changing device of the present invention;

[0022] Figure 4 This is a schematic diagram of the positional relationship between the filter plate and the drain pipe of the present invention;

[0023] Figure 5 It is a schematic diagram of the structure of the spraying device of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the drug feeding device of the present invention;

[0025] Figure 7 It is a schematic structural diagram of the positional relationship between the rotating shaft and the stirring plate of the present invention.

[0026] In the figure: 1. shell; 2. exhaust pipe; 3. air outlet tube; 4. air inlet pipe; 5. partition; 61. waterproof motor; 62. circulating water pipe; 63. water pump; 64. valve; 65. pressure gauge; 66. screw rod; 67. sleeve rod; 68. blade; 69. drain pipe; 610. filter plate; 611. water baffle; 71. water flow pipe; 72. atomizing nozzle; 73. gear; 74. slide rod; 75. fixed plate; 76. teeth; 77. sealing block; 81. medicine storage box; 82. medicine inlet pipe; 83. solenoid valve; 84. medicine adding pipe; 85. steel cable; 86. fixing piece; 87. rotating shaft; 88. stirring plate; 89. detector. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 7 One embodiment of the present invention is: a split-diameter washing tower for chemical production, comprising a shell 1 and an air outlet 3, an exhaust pipe 2 is fixedly installed on the top of the shell 1, the air outlet 3 is connected to the shell 1 through the exhaust pipe 2, an air inlet pipe 4 is fixedly penetrated through the circumferential surface of the shell 1, a partition 5 is fixedly installed on the inner wall of the shell 1, and a dressing changing device is arranged on the inner wall of the shell 1;

[0029] The dressing changing device includes: a waterproof motor 61, a circulating water pipe 62, a water pump 63, a valve 64, a pressure gauge 65, a screw rod 66, a sleeve rod 67, a blade 68, a drain pipe 69, a filter plate 610 and a water baffle 611. The waterproof motor 61 is fixedly installed at the bottom of the inner wall of the shell 1, one end of the circulating water pipe 62 is fixedly penetrated through the inner and outer walls of the bottom of the shell 1, and the other end of the circulating water pipe 62 is fixedly penetrated through the inner and outer walls of the top of the shell 1. The water pump 63 is fixedly installed on the circumferential surface of the circulating water pipe 62, the valve 64 is rotatably installed at the control end of the water pump 63, and the pressure gauge 65 is fixedly installed on the surface of the water pump 63. The rising gas is sprayed with shower medicine to make the exhaust gas reach the discharge standard, and The water pressure in the water pump 63 can be observed through the pressure gauge 65 and adjusted through the valve 64. The overall structure is simple, reliable and practical. The screw rod 66 is fixedly installed on the top of the output end of the waterproof motor 61. A reciprocating spiral groove is opened on the circumferential surface of the screw rod 66. The sleeve rod 67 is slidably installed on the inner wall of the reciprocating spiral groove. The blade 68 is fixedly installed on the circumferential surface of the sleeve rod 67. The drain pipe 69 is fixedly penetrated through the inner and outer walls of the outer shell 1. The filter plate 610 is arranged on the inner wall of the drain pipe 69. The water retaining plate 611 is rotatably installed on the circumferential surface of the drain pipe 69 to prevent impurities from being effectively cleaned after being precipitated for a long time, resulting in the inability of the medicine to effectively achieve the washing effect, thereby improving the accuracy and reliability of the device.

[0030] A button is provided on the surface of the water pump 63, and the water baffle 611 is connected to the drain pipe 69 through a connector. The working state of the water pump 63 can be controlled by the button.

[0031] When the embodiment is working, the exhaust gas is discharged into the interior of the housing 1 through the air inlet pipe 4, and the gas flows into the air outlet 3 through the exhaust pipe 2 after being treated, and is discharged after reaching the purification standard. The medicine at the bottom of the housing 1 is extracted by the water pump 63, and the medicine is pumped to the top through the circulating water pipe 62 for spraying, and the rising gas is sprayed with the shower medicine so that the exhaust gas reaches the discharge standard, and the water pressure in the water pump 63 can be observed through the pressure gauge 65, and adjusted through the valve 64. The overall structure is simple, the reliability is high, and the practicality is strong. The rotation of the output end of the waterproof motor 61 will drive the screw rod 66 to rotate, the rotation of the screw rod 66 will drive the reciprocating spiral groove to rotate, and the rotation of the reciprocating spiral groove will drive the sleeve rod 67 to move back and forth The reciprocating movement of the sleeve rod 67 will drive the blade 68 to move reciprocatingly, and the reciprocating movement of the blade 68 will stir the recyclable medicine solution at the bottom of the shell 1. After being stirred, the medicine solution will carry impurities with it and flow to the drain pipe 69. The flow of impurities will be blocked by the filter plate 610 and remain on the surface of the filter plate 610. When the filter plate 610 needs to be cleaned, the water baffle plate 611 is rotated toward the top. After the water baffle plate 611 is rotated, the drain pipe 69 will be opened, and then the filter plate 610 is taken out. The rotation of the blade 68 can drive the impurities to the surface of the filter plate 610, preventing the impurities from being effectively cleaned after being precipitated for a long time, resulting in the medicine solution being unable to effectively achieve the washing effect, thereby improving the accuracy and reliability of the device.

[0032] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a spraying device is provided on the inner wall of the shell 1, and a medicine feeding device is provided on the back of the shell 1. The spraying device includes: a water pipe 71, an atomizing nozzle 72 and a gear 73. The water pipe 71 is rotatably installed on the circumference of the circulating water pipe 62, and the water pipe 71 is rotatably penetrated through the inner and outer walls of the shell 1. The atomizing nozzle 72 is fixedly installed at the bottom of the water pipe 71. The atomizing nozzle 72 is connected with the circulating water pipe 62 through the water pipe 71. The gear 73 is fixedly installed at one end of the water pipe 71 away from the circulating water pipe 62, so that the contact area between the exhaust gas and the medicine is increased, thereby improving the qualified rate and safety of the exhaust gas purification.

[0033] The spraying device includes: a slide bar 74, a fixed plate 75, teeth 76 and a sealing block 77. The slide bar 74 is slidably mounted on the inner wall of the shell 1, the fixed plate 75 is fixedly mounted on a side of the slide bar 74 close to the atomizing nozzle 72, the teeth 76 are fixedly mounted on the surface of the fixed plate 75, the teeth 76 are meshed with the gear 73, and the sealing block 77 is fixedly mounted on the top of the slide bar 74. The sealing block 77 slides through the top of the shell 1, so that when the exhaust gas is sprayed with medicine during the rising process, the swing of the atomizing nozzle will greatly increase the coverage area of ​​the medicine, further improving the reliability and purification efficiency of the exhaust gas purification.

[0034] The slide bar 74 contacts the blade 68 , the surface of the sealing block 77 is set to be L-shaped, and the side of the slide bar 74 that contacts the blade 68 is set to be an inclined surface, and the blade 68 can push the slide bar 74 to move through the set inclined surface.

[0035] The medicine feeding device includes: a medicine storage box 81, a medicine feeding pipe 82, an electromagnetic valve 83, a medicine adding pipe 84 and a detector 89. The medicine storage box 81 is arranged on the back of the shell 1, one end of the medicine feeding pipe 82 is fixedly penetrated through the inner and outer walls of the medicine storage box 81, and the other end of the medicine feeding pipe 82 is fixedly penetrated through the inner and outer walls of the shell 1. The shell 1 is connected to the medicine storage box 81 through the medicine feeding pipe 82, the electromagnetic valve 83 is fixedly installed on the circumferential surface of the medicine feeding pipe 82, the medicine adding pipe 84 is fixedly penetrated through the inner and outer walls of the medicine storage box 81, and the detector 89 is fixedly installed at the bottom of the inner wall of the shell 1, so that the medicine can be detected and added at any time to prevent the medicine from losing its chemical properties after long-term use, so that the exhaust gas purification effect cannot be achieved, thereby improving the purification effect and reliability.

[0036] The detector 89 is provided with a detection module and a control module inside. The control module is electrically connected to the solenoid valve 83 , and the solenoid valve 83 is started by the control module.

[0037] The dosing device also includes: a steel cable 85, a fixing member 86, a rotating shaft 87 and a stirring plate 88. One end of the steel cable 85 is fixedly installed on the bottom of the sealing block 77, and the rotating shaft 87 is rotatably installed on the inner wall of the medicine storage box 81. The other end of the steel cable 85 is fixedly installed on the circumferential surface of the rotating shaft 87, the fixing member 86 is fixedly installed on the circumferential surface of the outer shell 1, and the stirring plate 88 is fixedly installed on the circumferential surface of the rotating shaft 87. This prevents the medicine in the medicine storage box 81 from being stagnant for a long time or its own physical properties, causing some components in the medicine to precipitate, resulting in the medicine added to the outer shell 1 failing to achieve the expected purification effect, thereby improving the applicability and reliability of the device.

[0038] When the present embodiment is working, the water pump 63 extracts the medicine at the bottom of the shell 1 and pumps the medicine into the water pipe 71 through the circulating water pipe 62. The atomizing nozzle 72 atomizes the medicine in the water pipe 71 and sprays it out, so that the contact area between the exhaust gas and the medicine is increased, thereby improving the qualified rate and safety of the exhaust gas purification. When the blade 68 moves back and forth, the movement of the blade 68 will contact the slide bar 74, and the movement of the blade 68 will push the slide bar 74 to move to the bottom. The movement of the slide bar 74 will drive the fixed plate 75 to move, and the movement of the fixed plate 75 will drive the teeth 76 to move. The rotation of the teeth 76 will drive the gear 73 to rotate, and the rotation of the gear 73 will drive the water pipe 71 to rotate. The rotation of the water pipe 71 will drive the atomizing nozzle 72 to rotate. After the blade 68 no longer contacts the slide bar 74, the slide bar 74 will move toward the bottom due to gravity, and the movement of the slide bar 74 will drive the fixed plate 75 to move, and the movement of the fixed plate 75 will drive the teeth 76 to move, and the rotation of the teeth 76 will drive the gear 73 to rotate, and the rotation of the gear 73 will drive the water pipe 71 to rotate, and the rotation of the water pipe 71 will drive the atomizing nozzle 72 to rotate, so that when the blade 68 contacts the slide bar 74, the atomizing nozzle 72 will rotate to one side, and when the blade 68 no longer contacts the slide bar 74, the atomizing nozzle 72 will rotate to the other side, so that when the exhaust gas is sprayed with medicine during the rising process, the swing of the atomizing nozzle will greatly increase the coverage area of ​​the medicine, thereby further improving the reliability and purification efficiency of the exhaust gas purification.

[0039] The medicine at the bottom of the shell 1 is detected by the detection module in the detector 89, and the electromagnetic valve 83 is started by the control module. The electromagnetic valve 83 opens the medicine inlet pipe 82, so that the medicine in the medicine storage box 81 flows into the interior of the shell 1, so that the medicine can be detected and added at all times, to prevent the medicine from losing its chemical properties after long-term use, so that the exhaust gas purification effect cannot be achieved, thereby improving the purification effect and reliability. The slide bar 74 moves toward the top, and the movement of the slide bar 74 drives the sealing block 77 to move. The movement of the sealing block 77 will drive the steel cable 85 to move. The movement of the steel cable 85 will drive the steel cable 85 wound on the surface of the rotating shaft 87 to move. The movement of the steel cable 85 will drive the rotating shaft 87 to rotate. The rotation of the rotating shaft 87 will drive the stirring plate 88 to rotate. The rotation of the stirring plate 88 will stir the medicine in the medicine storage box 81, to prevent the medicine in the medicine storage box 81 from being stagnant for a long time or its own physical properties causing some components in the medicine to precipitate, resulting in the medicine added to the shell 1 failing to achieve the expected purification effect, thereby improving the applicability and reliability of the device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A split-diameter washing tower for chemical production, comprising a housing (1) and an air outlet tube (3), characterized in that: An exhaust pipe (2) is fixedly mounted on the top of the shell (1), the air outlet tube (3) is connected to the shell (1) via the exhaust pipe (2), an air inlet pipe (4) is fixedly penetrated through the circumferential surface of the shell (1), a partition plate (5) is fixedly mounted on the inner wall of the shell (1), a medicine changing device and a spraying device are arranged on the inner wall of the shell (1), and a medicine feeding device is arranged on the back of the shell (1); The dressing changing device comprises: a waterproof motor (61), a circulating water pipe (62), a water pump (63), a valve (64), a pressure gauge (65), a screw rod (66), a sleeve rod (67), a blade (68), a drain pipe (69), a filter plate (610) and a water baffle (611), wherein the waterproof motor (61) is fixedly mounted on the bottom of the inner wall of the housing (1), one end of the circulating water pipe (62) is fixedly penetrated through the inner and outer walls of the bottom of the housing (1), and the other end of the circulating water pipe (62) is fixedly penetrated through the inner and outer walls of the top of the housing (1), the water pump (63) is fixedly mounted on the circumferential surface of the circulating water pipe (62), and the valve (64) is rotatably mounted on the control end of the water pump (63), the pressure gauge (65) is fixedly mounted on the surface of the water pump (63), the screw rod (66) is fixedly mounted on the top of the output end of the waterproof motor (61), the circumferential surface of the screw rod (66) is provided with a reciprocating spiral groove, the sleeve rod (67) is slidably mounted on the inner wall of the reciprocating spiral groove, the blade (68) is fixedly mounted on the circumferential surface of the sleeve rod (67), the drain pipe (69) is fixedly penetrated through the inner and outer walls of the housing (1), the filter plate (610) is arranged on the inner wall of the drain pipe (69), and the water retaining plate (611) is rotatably mounted on the circumferential surface of the drain pipe (69).

2. A split-diameter washing tower for chemical production according to claim 1, characterized in that: A button is provided on the surface of the water pump (63), and the water baffle (611) is connected to the drain pipe (69) via a connecting piece.

3. A split-diameter washing tower for chemical production according to claim 2, characterized in that: The spraying device comprises: a water flow pipe (71), an atomizing nozzle (72) and a gear (73); the water flow pipe (71) is rotatably mounted on the circumference of a circulating water pipe (62); the water flow pipe (71) rotatably penetrates the inner and outer walls of the housing (1); the atomizing nozzle (72) is fixedly mounted on the bottom of the water flow pipe (71); the atomizing nozzle (72) is connected to the circulating water pipe (62) through the water flow pipe (71); and the gear (73) is fixedly mounted on one end of the water flow pipe (71) away from the circulating water pipe (62).

4. A split-diameter washing tower for chemical production according to claim 3, characterized in that: The spraying device comprises: a slide bar (74), a fixed plate (75), teeth (76) and a sealing block (77); the slide bar (74) is slidably mounted on the inner wall of the housing (1); the fixed plate (75) is fixedly mounted on a side of the slide bar (74) close to the atomizing nozzle (72); the teeth (76) are fixedly mounted on the surface of the fixed plate (75); the teeth (76) are meshed with the gear (73); the sealing block (77) is fixedly mounted on the top of the slide bar (74); and the sealing block (77) slides through the top of the housing (1).

5. A split-diameter washing tower for chemical production according to claim 4, characterized in that: The sliding rod (74) is in contact with the blade (68), the surface of the sealing block (77) is arranged to be L-shaped, and the side of the sliding rod (74) in contact with the blade (68) is arranged to be an inclined surface.

6. A split-diameter washing tower for chemical production according to claim 5, characterized in that: The drug feeding device comprises: a drug storage box (81), a drug feeding pipe (82), an electromagnetic valve (83), a drug adding pipe (84) and a detector (89); the drug storage box (81) is arranged on the back of the shell (1); one end of the drug feeding pipe (82) is fixedly passed through the inner and outer walls of the drug storage box (81); the other end of the drug feeding pipe (82) is fixedly passed through the inner and outer walls of the shell (1); the shell (1) is connected to the drug storage box (81) through the drug feeding pipe (82); the electromagnetic valve (83) is fixedly installed on the circumferential surface of the drug feeding pipe (82); the drug adding pipe (84) is fixedly passed through the inner and outer walls of the drug storage box (81); and the detector (89) is fixedly installed at the bottom of the inner wall of the shell (1).

7. A split-diameter washing tower for chemical production according to claim 6, characterized in that: The detector (89) is provided with a detection module and a control module inside, and the control module is electrically connected to the solenoid valve (83).

8. A split-diameter washing tower for chemical production according to claim 7, characterized in that: The dosing device further comprises: a steel cable (85), a fixing member (86), a rotating shaft (87) and a stirring plate (88), one end of the steel cable (85) is fixedly mounted on the bottom of the sealing block (77), the rotating shaft (87) is rotatably mounted on the inner wall of the medicine storage box (81), the other end of the steel cable (85) is fixedly mounted on the circumferential surface of the rotating shaft (87), the fixing member (86) is fixedly mounted on the circumferential surface of the housing (1), and the stirring plate (88) is fixedly mounted on the circumferential surface of the rotating shaft (87).

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