Acid-alkali washing circulating system for pretreatment of parachlorotoluene tail gas adsorption equipment

Abstract

The invention belongs to the technical field of chlorotoluene tail gas treatment, and particularly relates to an acid-alkali washing circulating system for pretreatment of parachlorotoluene tail gas adsorption equipment, the acid-alkali washing circulating system comprises a supporting protection frame, and the inner wall of the supporting protection frame is fixedly provided with a neutralizing tower, a magnet plate II, a system fan and a chlorotoluene tail gas emission concentration cylinder; the output end of the system fan is fixedly connected with a gas conveying pipeline, the gas conveying pipeline is communicated with the chlorotoluene tail gas emission concentration cylinder and the neutralizing tower, the outer wall of one side of the top of the supporting protection frame is fixedly connected with a spraying pipe, and the branch end of the spraying pipe is fixedly connected with the outer wall of one side of the top of the neutralizing tower; an atomization spraying frame is fixedly installed on the inner wall of the top of the supporting protection frame, the chlorotoluene tail gas emission concentration barrel is communicated with an industrial workshop chlorotoluene tail gas emission pipe, and chlorotoluene tail gas in the chlorotoluene tail gas emission concentration barrel enters an outer layer protection barrel of the neutralization tower through a system fan; and chlorotoluene tail gas is sprayed out from the first exhaust port and the second exhaust port through the inner-layer exhaust funnel.

Description

Technical Field

[0001] The invention belongs to the technical field of chlorotoluene tail gas treatment, and in particular relates to an acid-base washing circulation system for pretreatment of chlorotoluene tail gas adsorption equipment. Background Art

[0002] Chlorotoluene tail gas usually refers to the chlorotoluene tail gas containing chlorotoluene components produced in the production of chlorotoluene or related chemical processes, and the acid-base washing circulation system is an equipment system specially designed to treat tail gas containing chlorotoluene and other harmful substances. The factory's emission treatment of chlorotoluene tail gas is to absorb and neutralize the harmful substances in the tail gas through the acid-base washing method of the system, thereby achieving the purpose of purifying the tail gas.

[0003] However, the conventional device still has the following problems when used:

[0004] The existing neutralization towers all have an exhaust fan fixedly installed at the center of the bottom of the tower. The exhausted chlorotoluene tail gas rises straight up from the center, which can easily lead to an unbalanced alkaline washing reaction in the neutralization tower. The chlorotoluene tail gas emission in the axial range is much higher than that in the periphery. The small amount of alkaline neutralization discharged by the spray system can easily lead to incomplete alkaline washing reaction in the axial range, while increasing the amount of alkaline neutralization can easily cause excessive alkaline washing reaction in the periphery to breed alkaline blocks on the inner wall. The emission balance method of the neutralization tower needs to be improved. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide an acid-base washing circulation system for pretreatment of a para-chlorotoluene tail gas adsorption device, which has the advantage of optimizing the emission balance mode of a neutralization tower.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an acid-base washing circulation system for pretreatment of para-chlorotoluene tail gas adsorption equipment, comprising a support and protection frame, wherein the inner wall of the support and protection frame is respectively fixedly installed with a neutralization tower, a magnetic plate 2, a system fan and a chlorotoluene tail gas emission concentration cylinder, the output end of the system fan is fixedly connected with a gas pipeline, and the gas pipeline is connected with the chlorotoluene tail gas emission concentration cylinder and the neutralization tower, the outer wall of the top side of the support and protection frame is fixedly connected with a spray pipe, and the branch end of the spray pipe is fixedly connected with the outer wall of the top side of the neutralization tower, and the inner wall of the top of the support and protection frame is fixedly installed with an atomizing spray frame, and the input end of the atomizing spray frame is connected with the spray pipe. The branch ends of the shower pipe are connected, the bottom outer wall of the neutralization tower is fixedly connected with a gas pipe connected to the inner wall, the top outer wall of the gas pipe is fixedly connected with a connecting flange, the top outer wall of the connecting flange is fixedly connected with an outer protective cylinder, the inner wall of the connecting flange is rotatably connected with an inner exhaust cylinder, the inner wall of the inner exhaust cylinder is connected to the inner wall of the gas pipe, the outer wall of the inner exhaust cylinder is fixedly connected with a top plate, the outer walls of the top plate are rotatably connected with the inner walls of the top of the outer protective cylinder, the top outer wall of the top plate is fixedly connected with two first exhaust ports and a second exhaust port, the input ends of the first exhaust port and the second exhaust port are both connected to the inner wall of the inner exhaust cylinder.

[0007] Preferably, the two first exhaust ports and the second exhaust ports are respectively distributed diagonally, the injection inclination angle of the two first exhaust ports is 60°, and the injection inclination angle of the two second exhaust ports is 30°.

[0008] Preferably, the outer wall of the outer protective tube is provided with a plurality of placement grooves, and the plurality of placement grooves are distributed in a uniform array. The inner wall of the placement groove is movably connected with a diverter rack, and the inner wall of the diverter rack is provided with a connecting port connected to the inner wall of the outer protective tube. The diverter rack is provided with a flow groove connected at both ends, and the inner wall of one end of the flow groove is in contact with the inner wall of the connecting port.

[0009] Preferably, a locking groove is provided on one side outer wall of the diverter rack, the inner wall of the locking groove is fixedly connected with connecting hinge 2, the inner wall of the locking groove is movably connected with a stretching plate, the outer wall at one end of the stretching plate is fixedly connected to the outer wall at one end of the connecting hinge 2, the outer wall at one end of the stretching plate is hinged to the diverter rack through connecting hinge 2, the outer wall at one end of the stretching plate away from connecting hinge 2 is fixedly connected with connecting hinge 3, the outer wall on one side of the connecting hinge 3 is fixedly connected to the top of the inner wall on one side of the diverter rack, and the stretching plate is hinged to the outer wall of the outer protective tube through connecting hinge 3.

[0010] Preferably, a limit bearing is provided on the outer wall of the outer protective cylinder, and the inner sleeve of the limit bearing is movably connected to the outer wall of the outer protective cylinder, and the inner wall of the inner sleeve of the limit bearing is fixedly connected with a connecting hinge 1, and the outer wall of one side of the connecting hinge 1 is fixedly connected to the outer wall of one end of the diverter frame, and reciprocating motors are fixedly installed on the outer walls of both sides of the outer protective cylinder, and a threaded rod is fixedly connected to the axis of the reciprocating motor, and a fixed block is fixedly connected to the outer wall of the outer protective cylinder, and the bottom outer wall of the fixed block is rotatably connected to the top outer wall of the threaded rod, and a threaded groove is provided on the inner wall of the inner sleeve of the limit bearing, and the outer wall of the threaded rod is threadedly connected to the outer wall of the threaded groove.

[0011] Preferably, the outer wall of the inner exhaust chimney is fixedly connected with a plurality of wind shield ring plates, the top outer wall of the wind shield ring plate is provided with air holes connected at both ends, the outer wall of the gas pipe is fixedly connected with a diversion pipe, and the outer wall of one end of the diversion pipe away from the gas pipe is connected with the inner wall of the outer protective cylinder.

[0012] Preferably, a plurality of spring hinges are fixedly connected to the inner wall of the neutralization tower at both ends, a mounting platform is fixedly connected to the outer wall of one side of the spring hinge, a plurality of composite nylon industrial baffle cloths are fixedly connected to the outer wall of the outer protective tube, a plurality of through holes are provided on the outer wall of the composite nylon industrial baffle cloth, a spring pull rope is fixedly connected to one side of the composite nylon industrial baffle cloth, the outer walls at both ends of the spring pull rope are fixedly connected to the outer walls of the mounting platforms at both ends of the outer protective tube, and a plurality of telescopic rods are provided on the outer wall of the composite nylon industrial baffle cloth.

[0013] Preferably, the outer wall of the inner exhaust pipe is fixedly connected with a plurality of linkage plates, the outer wall of the linkage plate is fixedly installed with a magnet plate 1, the inner wall of the circulation groove is fixedly connected with a retaining rod, the outer wall of the retaining rod is movably connected with a brake plate, the outer wall of one side of the brake plate is fixedly connected with an extension plate, the outer wall of the extension plate at one end away from the brake plate is fixedly connected with a magnet plate 2, the magnet plate 2 is magnetically connected to the magnet plate 1, and the outer wall of the brake plate at one side away from the extension plate is movably fitted with the outer wall of the composite nylon industrial baffle.

[0014] Preferably, a telescopic rod is provided between the mounting platforms at the upper and lower ends of the outer protective tube, and the outer walls at both ends of the telescopic rod are fixedly connected with mounting hinges, one side outer wall of the mounting hinge is fixedly connected to one side outer wall of the mounting platform, the telescopic rod is hinged to the mounting platform through the mounting hinge, one side outer wall of the mounting platform is fixedly connected to a limit baffle, and the limit baffle is movably fitted with one side outer wall of the telescopic rod.

[0015] Preferably, a composite pull rope is fixedly connected to the bottom outer wall of the mounting platform, the outer wall of one end of the composite pull rope away from the mounting platform is fixedly connected to the outer sleeve of a limit bearing, the outer wall of the outer protective tube is fixedly connected to a plurality of limit rollers, and the outer wall of the limit roller is transmission-connected to the outer wall of the composite pull rope.

[0016] Preferably, the chlorotoluene tail gas emission concentration cylinder is connected to the chlorotoluene tail gas emission pipe of the industrial workshop, and the mixed gas in the chlorotoluene tail gas emission concentration cylinder enters the neutralization tower through the system fan, and the chlorotoluene tail gas is pre-treated by the atomizing spray rack and sprayed to neutralize the chlorotoluene tail gas. The PH value of the reaction solution is controlled by the pre-installed PH meter in the spray system to supplement the medicine, so as to neutralize the chlorotoluene tail gas to the greatest extent.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The chlorotoluene tail gas emission concentration cylinder is connected with the chlorotoluene tail gas emission pipe of the industrial workshop. The chlorotoluene tail gas in the chlorotoluene tail gas emission concentration cylinder enters the outer protective cylinder of the neutralization tower through the system fan. The chlorotoluene tail gas is ejected from the first exhaust port and the second exhaust port through the inner exhaust pipe. By setting the injection inclination angle of the first exhaust port to 60° and the injection inclination angle of the second exhaust port to 30°, the chlorotoluene tail gas of the inner exhaust pipe is ejected at an inclined angle instead of a straight angle, thereby involving more end faces. When the top plate rotates, the injection angles of the first exhaust port and the second exhaust port are driven to rotate, so that the injection angle of the chlorotoluene tail gas can be very balanced to involve the entire end face of the neutralization tower. As the chlorotoluene tail gas rises, it evenly fills the entire neutralization tower. Compared with the traditional axial range linear injection, this method can achieve the same emission amount in the axial range and the periphery, so that the chlorotoluene tail gas alkali washing reaction in the neutralization tower is more balanced, and will not cause incomplete alkali washing reaction in the axial range, or excessive alkali washing reaction in the periphery to breed alkali blocks on the inner wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention in a front view.

[0020] Figure 2 It is a schematic diagram of the overall structure of the present invention in the upper left direction.

[0021] Figure 3 It is a schematic diagram of the overall structure of the present invention in the upper right direction.

[0022] Figure 4 It is a schematic diagram of the cross-sectional front view of the neutralization tower of the present invention.

[0023] Figure 5 It is a schematic diagram of the structure of the neutralization tower of the present invention when viewed in cross section from the upper right direction.

[0024] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at point A in the middle.

[0025] Figure 7 It is a schematic diagram of the structure of the atomizing spray rack of the present invention.

[0026] Figure 8 for Figure 7 A magnified schematic diagram of the structure at point B in the middle.

[0027] Fig. 9 It is a schematic diagram of the overall structure of the outer protective tube of the present invention.

[0028] Fig.10 for Fig. 9 Enlarged schematic diagram of the structure at C in the middle.

[0029] Fig.11 It is a schematic diagram of the internal structure of the outer protective tube of the present invention.

[0030] Fig.12 for Fig.11 Enlarged schematic diagram of the structure at D in the middle.

[0031] In the figure: 1, support and protection frame; 2, neutralization tower; 3, spray pipe; 4, gas transmission pipe; 5, connecting flange; 6, outer protective tube; 7, inner exhaust tube; 8, top plate; 9, first exhaust port; 10, second exhaust port; 11, placement groove; 12, limit bearing; 13, splitter frame; 14, connecting hinge 1; 15, circulation groove; 16, connecting port; 17, snap-fit ​​groove; 18, connecting hinge 2; 19, stretching plate; 20, connecting hinge 3; 21, wind shield ring plate; 22, vent hole; 23, linkage plate; 24, magnetic plate 1 ; 25. Magnetic plate 2; 26. Gas pipeline; 27. Composite nylon industrial baffle; 28. Telescopic rod; 29. ​​Through hole; 30. Spring hinge; 31. Mounting platform; 32. Mounting hinge; 33. Limit baffle; 34. Retaining rod; 35. Brake plate; 36. Extension plate; 37. Limit roller; 38. Composite pull rope; 39. Atomizing spray rack; 40. Reciprocating motor; 41. Threaded rod; 42. Fixed block; 43. Diverter pipe; 44. Spring pull rope; 45. System fan; 46. Chlorotoluene tail gas emission concentration cylinder. DETAILED DESCRIPTION

[0032] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0033] For example, see Figures 1 to 12 The present invention provides a technical solution: an acid-base washing circulation system for pretreatment of para-chlorotoluene tail gas adsorption equipment, comprising a supporting and protective frame 1, the inner wall of the supporting and protective frame 1 is respectively fixedly installed with a neutralization tower 2, a magnetic plate 25, a system fan 45 and a chlorotoluene tail gas emission concentration cylinder 46, the output end of the system fan 45 is fixedly connected with a gas pipeline 26, and the gas pipeline 26 connects the chlorotoluene tail gas emission concentration cylinder 46 and the neutralization tower 2, the outer wall of the top side of the supporting and protective frame 1 is fixedly connected with a spray pipe 3, the branch end of the spray pipe 3 is fixedly connected to the outer wall of the top side of the neutralization tower 2, the top inner wall of the supporting and protective frame 1 is fixedly installed with an atomizing spray frame 39, the input end of the atomizing spray frame 39 is connected to the branch end of the spray pipe 3, the bottom outer wall of the neutralization tower 2 is fixedly connected with a gas pipeline 4 connected to the inner wall, the top outer wall of the gas pipeline 4 is fixedly connected with a connecting flange 5, the top outer wall of the connecting flange 5 is fixedly connected with an outer protective cylinder 6, and the connecting flange 5 is fixedly connected to the outer outer wall of the outer layer. The inner wall of the connecting flange 5 is rotatably connected to the inner layer exhaust pipe 7, and the inner wall of the inner layer exhaust pipe 7 is connected to the inner wall of the gas supply pipe 4. The outer wall of the inner layer exhaust pipe 7 is fixedly connected to the top plate 8. The outer walls around the top plate 8 are rotatably connected to the inner walls around the top of the outer protective tube 6. The top outer wall of the top plate 8 is fixedly connected to two first exhaust ports 9 and the second exhaust ports 10. The input ends of the first exhaust ports 9 and the second exhaust ports 10 are both connected to the inner wall of the inner layer exhaust pipe 7. The two first exhaust ports 9 and the second exhaust ports 10 are diagonally distributed respectively. The injection inclination angle of the two first exhaust ports 9 is 60°, and the injection inclination angle of the two second exhaust ports 10 is 30°. The outer wall of the inner layer exhaust pipe 7 is fixedly connected to a plurality of wind shielding ring plates 21. The top outer wall of the wind shielding ring plate 21 is provided with air holes 22 connected at both ends. The outer wall of the gas supply pipe 4 is fixedly connected to a shunt pipe 43. The outer wall of the shunt pipe 43 at one end away from the gas supply pipe 4 is connected to the inner wall of the outer protective tube 6.

[0034] In the present invention, the chlorotoluene tail gas emission concentration tube 46 is connected to the chlorotoluene tail gas emission pipe of the industrial workshop, and the chlorotoluene tail gas in the chlorotoluene tail gas emission concentration tube 46 enters the outer protective tube 6 of the neutralization tower 2 through the system fan 45, and the chlorotoluene tail gas is ejected from the first exhaust port 9 and the second exhaust port 10 through the inner exhaust pipe 7. By setting the injection inclination angle of the first exhaust port 9 to 60° and the injection inclination angle of the second exhaust port 10 to 30°, the chlorotoluene tail gas of the inner exhaust pipe 7 is ejected at an inclined angle instead of a straight angle, thereby involving more end faces, and when the top plate 8 rotates, the injection angle of the first exhaust port 9 and the second exhaust port 10 are driven to rotate. , so that the injection angle of the chlorotoluene tail gas can be very balanced to involve the entire end face of the neutralization tower 2. As the chlorotoluene tail gas rises, it evenly fills the entire neutralization tower 2. Compared with the traditional axial range linear injection, this method can achieve the same emission volume in the axial range and the periphery, so that the chlorotoluene tail gas alkali washing reaction in the neutralization tower 2 is more balanced, and will not cause incomplete axial range alkali washing reaction, or excessive peripheral alkali washing reaction to breed alkali blocks on the inner wall. The chlorotoluene tail gas is sprayed and treated by the atomizing spray rack 39, and the PH value of the solution is controlled by the pre-installed PH meter in the spray system to replenish the medicine, so as to neutralize the chlorotoluene tail gas to the greatest extent and complete the processing cycle.

[0035] Embodiment 2, on the basis of embodiment 1, the outer wall of the outer protective tube 6 is provided with a plurality of placement grooves 11, and the plurality of placement grooves 11 are evenly distributed in an array, the inner wall of the placement groove 11 is movably connected with a diverter frame 13, the inner wall of the diverter frame 13 is provided with a connecting port 16 connected to the inner wall of the outer protective tube 6, the diverter frame 13 is provided with a flow groove 15 connected at both ends, the inner wall of one end of the flow groove 15 is in contact with the inner wall of the connecting port 16, a clamping groove 17 is provided on the outer wall of one side of the diverter frame 13, the inner wall of the clamping groove 17 is fixedly connected with a second connecting hinge 18, the inner wall of the clamping groove 17 is movably connected with a stretching plate 19, the outer wall of one end of the stretching plate 19 is fixedly connected with the outer wall of one end of the connecting hinge 18, the outer wall of one end of the stretching plate 19 is hinged to the diverter frame 13 through the second connecting hinge 18, and the outer wall of the end of the stretching plate 19 away from the second connecting hinge 18 is fixedly connected with a third connecting hinge 20 , an outer wall of one side of the connecting hinge three 20 is fixedly connected to the top of the inner wall of one side of the diverter rack 13, the stretching plate 19 is hinged to the outer wall of the outer protective tube 6 through the connecting hinge three 20, the outer wall of the outer protective tube 6 is provided with a limit bearing 12, the inner sleeve of the limit bearing 12 is movably connected to the outer wall of the outer protective tube 6, the inner wall of the inner sleeve of the limit bearing 12 is fixedly connected with a connecting hinge 14, the outer wall of one side of the connecting hinge 14 is fixedly connected to the outer wall of one end of the diverter rack 13, the outer walls of both sides of the outer protective tube 6 are fixedly installed with a reciprocating motor 40, the axis of the reciprocating motor 40 is fixedly connected with a threaded rod 41, the outer wall of the outer protective tube 6 is fixedly connected with a fixed block 42, the bottom outer wall of the fixed block 42 is rotatably connected to the top outer wall of the threaded rod 41, the inner wall of the inner sleeve of the limit bearing 12 is provided with a threaded groove, and the outer wall of the threaded rod 41 is threadedly connected to the outer wall of the threaded groove.

[0036] In the present invention, when the gas delivery pipe 4 discharges the chlorotoluene tail gas into the outer protective tube 6, half of the chlorine gas enters between the wind shielding ring plate 21 through the diverter pipe 43 to blow the wind shielding ring plate 21 in a biased manner. The wind shielding ring plate 21 is blown to drive the inner exhaust pipe 7 and the top plate 8 to rotate, thereby driving the first exhaust port 9 and the second exhaust port 10 to rotate and spray. At the same time, by starting the reciprocating motor 40, the threaded rod 41 is driven to rotate, and the limit bearing 12 is engaged and rotated to move upward. Through the cooperation of the stretching plate 19 and the multiple connecting hinges, the upper end of the diverter frame 13 is extended outward, so that the diverter frame 1 3 is aligned with the connecting port 16 of the outer protective tube 6. At this time, the chlorotoluene tail gas continuously blown in the wind shield ring plate 21 is discharged into the outer protective tube 6 through the vent hole 22, and is ejected from the upper end of the diverter rack 13 through the flow slot 15. The upper end of the unfolded diverter rack 13 is closer to the periphery of the neutralization tower 2, further increasing the end surface range of the outer protective tube 6, making the chlorotoluene tail gas alkali washing reaction in the neutralization tower 2 more balanced, and in this way, the chlorotoluene tail gas is diverted to the periphery, digesting the excess solution in the periphery, and further reducing the result of the growth of alkali blocks on the inner wall of the neutralization tower 2.

[0037] Embodiment 3, on the basis of embodiment 1, multiple spring hinges 30 are fixedly connected to the inner wall of the neutralization tower 2 at both ends, a mounting platform 31 is fixedly connected to the outer wall of one side of the spring hinge 30, multiple composite nylon industrial baffles 27 are fixedly connected to the outer wall of the outer protective tube 6, a plurality of through holes 29 are provided on the outer wall of the composite nylon industrial baffle 27, a spring pull rope 44 is fixedly connected to one side of the composite nylon industrial baffle 27, the outer walls of both ends of the spring pull rope 44 are fixedly connected to the outer walls of the mounting platforms 31 at both ends of the outer protective tube 6, and a plurality of telescopic rods 28 are provided on the outer wall of the composite nylon industrial baffle 27.

[0038] In the present invention, the contact surface and wall surface between the chlorotoluene tail gas and the reaction solution of the neutralization tower 2 are increased by installing the composite nylon industrial baffle 27, so as to better produce the cleaning reaction. At the same time, by opening the through hole 29 on the composite nylon industrial baffle 27, the circulation and exchange capacity of the chlorotoluene tail gas on both sides of the composite nylon industrial baffle 27 is improved, and a better cleaning reaction is further produced. By arranging the telescopic rod 28, the composite nylon industrial baffle 27 has the function of straightening or loosening. By arranging the installation platform 31 on the spring hinge 30, this device has the function of unfolding the composite nylon industrial baffle 27 to increase the contact surface, or retracting it to fit the inner wall of the neutralization tower 2 to make room for the neutralization tower 2.

[0039] Embodiment 4, on the basis of embodiment 3, the outer wall of the inner exhaust chimney 7 is fixedly connected with a plurality of linkage plates 23, the outer wall of the linkage plate 23 is fixedly installed with a magnet plate 24, the inner wall of the circulation slot 15 is fixedly connected with a retaining rod 34, the outer wall of the retaining rod 34 is movably connected with a brake plate 35, one side of the outer wall of the brake plate 35 is fixedly connected with an extension plate 36, the outer wall of the extension plate 36 at one end away from the brake plate 35 is fixedly connected with a magnet plate 25, the magnet plate 25 is magnetically connected to the magnet plate 1 24, and the outer wall of the brake plate 35 at one side away from the extension plate 36 is movably fitted with the outer wall of the composite nylon industrial baffle 27.

[0040] In the present invention, when the chlorotoluene tail gas is blown into the flow slot 15, the wind flow will generate high-frequency vibration on the extension plate 36, and the brake plate 35 will synchronously generate swing vibration. At this time, the composite nylon industrial baffle 27 that fits the brake plate 35 will synchronously generate high-frequency vibration under the beating of the brake plate 35. By utilizing this vibration, the composite nylon industrial baffle 27 produces a fanning effect in the neutralization tower 2 to cause wind flow, thereby improving the effect of the chlorotoluene tail gas and water mist of the neutralization tower 2. At the same time, the through hole 29 is provided to further improve the generation of wind flow, and further improve the circulation exchange capacity of the chlorotoluene tail gas on both sides of the composite nylon industrial baffle 27.

[0041] Embodiment 5, on the basis of embodiment 4, a telescopic rod 28 is arranged between the mounting platforms 31 at the upper and lower ends of the outer protective tube 6, and the outer walls at both ends of the telescopic rod 28 are fixedly connected with mounting hinges 32, and one side outer wall of the mounting hinge 32 is fixedly connected to the one side outer wall of the mounting platform 31, and the telescopic rod 28 is hinged to the mounting platform 31 through the mounting hinge 32, and one side outer wall of the mounting platform 31 is fixedly connected with a limiting baffle 33, and the limiting baffle 33 is movably fitted with one side outer wall of the telescopic rod 28, and the bottom outer wall of the mounting platform 31 is fixedly connected with a composite pull rope 38, and the outer wall of the composite pull rope 38 away from the mounting platform 31 is fixedly connected with the outer sleeve of the limiting bearing 12, and the outer wall of the outer protective tube 6 is fixedly connected with a plurality of limiting rollers 37, and the outer wall of the limiting roller 37 is transmission-connected with the outer wall of the composite pull rope 38.

[0042] In the present invention, when the diverter rack 13 is extended, the limit bearing 12 moves upward, and this displacement drives the installation platform 31 that is tightened close to the inner wall of the neutralization tower 2 to unfold through the pulling of the composite pull rope 38. At the same time, the telescopic rod 28 is limited by the limit baffle 33 while extending, thereby maintaining a vertical state and driving the installation platform 31 at the upper end to unfold.

[0043] The working principle and use process of the present invention: In the present invention, the chlorotoluene tail gas emission concentration tube 46 is connected to the chlorotoluene tail gas emission pipe of the industrial workshop, and the chlorotoluene tail gas in the chlorotoluene tail gas emission concentration tube 46 enters the outer protective tube 6 of the neutralization tower 2 through the system fan 45, and the chlorotoluene tail gas is ejected from the first exhaust port 9 and the second exhaust port 10 through the inner exhaust pipe 7. By setting the injection inclination angle of the first exhaust port 9 to 60° and the injection inclination angle of the second exhaust port 10 to 30°, the chlorotoluene tail gas of the inner exhaust pipe 7 is ejected at an inclined angle instead of a straight angle, thereby involving more end faces. When the top plate 8 rotates, the injection angles of the first exhaust port 9 and the second exhaust port 10 are driven to rotate, so that the injection angle of the chlorotoluene tail gas can be adjusted very The entire end surface of the neutralization tower 2 is evenly involved. As the chlorotoluene tail gas rises, it evenly fills the entire neutralization tower 2. Compared with the traditional axial range linear injection, this method can achieve the same emission volume in the axial range and the periphery, so that the chlorotoluene tail gas alkali washing reaction in the neutralization tower 2 is more balanced, and will not cause incomplete alkali washing reaction in the axial range, or excessive alkali washing reaction in the periphery to breed alkali blocks on the inner wall. The chlorotoluene tail gas is sprayed and treated by the atomizing spray rack 39, and the PH setting value of the solution is controlled by the pre-installed PH meter in the spray system to replenish the medicine, and the chlorotoluene tail gas is neutralized to the maximum extent to complete the processing cycle. In the present invention, when the gas pipeline 4 discharges the chlorotoluene tail gas into the outer protective tube 6, half of the chlorine gas enters the wind shield ring plate 2 through the diverter pipe 43 1, the wind shield ring plate 21 is blown in a biased direction, and the wind shield ring plate 21 is blown to drive the inner exhaust pipe 7 and the top plate 8 to rotate, thereby driving the first exhaust port 9 and the second exhaust port 10 to rotate and spray. At the same time, by starting the reciprocating motor 40, the threaded rod 41 is driven to rotate, and the limit bearing 12 is engaged and rotated to move upward. Through the cooperation of the stretching plate 19 and a plurality of connecting hinges, the upper end of the diverter frame 13 is extended outward, so that the flow slot 15 of the diverter frame 13 is aligned with the connecting port 16 of the outer protective cylinder 6. At this time, the chlorotoluene tail gas continuously blown in the wind shield ring plate 21 is discharged into the outer protective cylinder 6 through the vent hole 22, and is sprayed out from the upper end of the diverter frame 13 through the flow slot 15, and the upper end of the expanded diverter frame 13 is closer to the fitting neutralization. The periphery of the tower 2 further increases the end face range of the outer protective tube 6, so that the chlorotoluene tail gas alkali washing reaction in the neutralization tower 2 is more balanced, and the chlorotoluene tail gas is diverted to the periphery in this way, the excess solution in the periphery is digested, and the result of the growth of alkali blocks on the inner wall of the neutralization tower 2 is further reduced. In the present invention, the contact surface and wall hanging surface of the chlorotoluene tail gas and the reaction solution of the neutralization tower 2 are increased by installing the composite nylon industrial baffle 27, so as to better produce the cleaning reaction. At the same time, by opening a through hole 29 on the composite nylon industrial baffle 27, the circulation and exchange capacity of the chlorotoluene tail gas on both sides of the composite nylon industrial baffle 27 is improved, and a better cleaning reaction is further produced. By setting the telescopic rod 28, the composite nylon industrial baffle 27 has the function of straightening or loosening.By arranging the mounting platform 31 on the spring hinge 30, the device has the function of unfolding the composite nylon industrial baffle 27 to increase the contact surface, or retracting it to fit the inner wall of the neutralization tower 2 to make room for the neutralization tower 2. In the present invention, when the chlorotoluene tail gas is blown into the flow slot 15, the wind flow will generate high-frequency vibration on the extension plate 36, and the brake plate 35 will synchronously generate swing vibration. At this time, the composite nylon industrial baffle 27 that fits the brake plate 35 will synchronously generate high-frequency vibration under the beating of the brake plate 35. By utilizing this vibration, the composite nylon industrial baffle 27 will generate a fanning effect in the neutralization tower 2, thereby causing The wind flow is generated, thereby improving the effect of the chlorotoluene tail gas and water mist of the neutralization tower 2. At the same time, the through hole 29 is set to further improve the generation of wind flow, and further improve the circulation and exchange capacity of the chlorotoluene tail gas on both sides of the composite nylon industrial baffle 27. In the present invention, when the diverter 13 is extended, the limit bearing 12 moves upward, and this displacement drives the installation platform 31 close to the inner wall of the neutralization tower 2 to unfold through the pulling of the composite pull rope 38. At the same time, the telescopic rod 28 is limited by the limit baffle 33 while extending, so as to maintain the vertical state and drive the upper end of the installation platform 31 to unfold.

[0044] 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. An acid-base washing circulation system for pretreatment of a p-chlorotoluene tail gas adsorption device, comprising a supporting and protective frame (1), characterized in that: The inner wall of the support and protection frame (1) is respectively fixedly mounted with a neutralization tower (2), a second magnetic plate (25), a system fan (45) and a chlorotoluene tail gas emission concentration cylinder (46); the output end of the system fan (45) is fixedly connected to a gas pipeline (26); the gas pipeline (26) is connected to the chlorotoluene tail gas emission concentration cylinder (46) and the neutralization tower (2); the outer wall of the top side of the support and protection frame (1) is fixedly connected to a spray pipe (3); the branch end of the spray pipe (3) is fixedly connected to the outer wall of the top side of the neutralization tower (2); the inner wall of the top of the support and protection frame (1) is fixedly mounted with an atomizing spray frame (39); the input end of the atomizing spray frame (39) is connected to the branch end of the spray pipe (3); the bottom outer wall of the neutralization tower (2) is fixedly mounted with a spray pipe (39); the input end of the atomizing spray frame (39) is connected to the branch end of the spray pipe (3); A gas pipe (4) connected to the inner wall is connected, the top outer wall of the gas pipe (4) is fixedly connected to a connecting flange (5), the top outer wall of the connecting flange (5) is fixedly connected to an outer protective tube (6), the inner wall of the connecting flange (5) is rotatably connected to an inner exhaust tube (7), the inner wall of the inner exhaust tube (7) is connected to the inner wall of the gas pipe (4), the outer wall of the inner exhaust tube (7) is fixedly connected to a top plate (8), the outer walls of the top plate (8) are rotatably connected to the inner walls of the top of the outer protective tube (6), the top outer wall of the top plate (8) is fixedly connected to two first exhaust ports (9) and a second exhaust port (10), the input ends of the first exhaust port (9) and the second exhaust port (10) are both connected to the inner wall of the inner exhaust tube (7).

2. The acid-base washing circulation system for pretreatment of a parachlorotoluene tail gas adsorption equipment according to claim 1, characterized in that: The two first exhaust ports (9) and the second exhaust ports (10) are respectively distributed diagonally, the spray inclination angles of the two first exhaust ports (9) are 60°, and the spray inclination angles of the two second exhaust ports (10) are 30°.

3. The acid-base washing circulation system for pretreatment of a para-chlorotoluene tail gas adsorption equipment according to claim 1, characterized in that: The outer wall of the outer protective tube (6) is provided with a plurality of placement grooves (11), and the plurality of placement grooves (11) are evenly distributed in an array. The inner wall of the placement groove (11) is movably connected with a diverter frame (13), and the inner wall of the diverter frame (13) is provided with a connecting port (16) connected to the inner wall of the outer protective tube (6). The diverter frame (13) is provided with a flow groove (15) connected at both ends, and the inner wall of one end of the flow groove (15) is in contact with the inner wall of the connecting port (16).

4. The acid-base washing circulation system for pretreatment of a para-chlorotoluene tail gas adsorption equipment according to claim 3, characterized in that: The outer wall of one side of the diverter rack (13) is provided with a snap-fit ​​groove (17), the inner wall of the snap-fit ​​groove (17) is fixedly connected with a connecting hinge 2 (18), the inner wall of the snap-fit ​​groove (17) is movably connected with a stretching plate (19), the outer wall of one end of the stretching plate (19) is fixedly connected to the outer wall of one end of the connecting hinge 2 (18), the outer wall of one end of the stretching plate (19) is hinged to the diverter rack (13) through the connecting hinge 2 (18), the outer wall of the stretching plate (19) at one end away from the connecting hinge 2 (18) is fixedly connected with a connecting hinge 3 (20), the outer wall of one side of the connecting hinge 3 (20) is fixedly connected to the top of the inner wall of one side of the diverter rack (13), and the stretching plate (19) is hinged to the outer wall of the outer protective tube (6) through the connecting hinge 3 (20).

5. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 4, characterized in that: The outer wall of the outer protective tube (6) is provided with a limit bearing (12), the inner sleeve of the limit bearing (12) is movably connected to the outer wall of the outer protective tube (6), the inner wall of the inner sleeve of the limit bearing (12) is fixedly connected with a connecting hinge (14), one side outer wall of the connecting hinge (14) is fixedly connected to the outer wall of one end of the diverter frame (13), both side outer walls of the outer protective tube (6) are fixedly installed with a reciprocating motor (40), the axis of the reciprocating motor (40) is fixedly connected with a threaded rod (41), the outer wall of the outer protective tube (6) is fixedly connected with a fixing block (42), the bottom outer wall of the fixing block (42) is rotatably connected to the top outer wall of the threaded rod (41), the inner wall of the inner sleeve of the limit bearing (12) is provided with a threaded groove, and the outer wall of the threaded rod (41) is threadedly connected to the outer wall of the threaded groove.

6. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 1, characterized in that: The outer wall of the inner exhaust pipe (7) is fixedly connected to a plurality of wind shielding ring plates (21), and the top outer wall of the wind shielding ring plate (21) is provided with ventilation holes (22) connected at both ends. The outer wall of the gas supply pipe (4) is fixedly connected to a shunt pipe (43), and the outer wall of one end of the shunt pipe (43) away from the gas supply pipe (4) is connected to the inner wall of the outer protective pipe (6).

7. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 3, characterized in that: The inner wall of the neutralization tower (2) is respectively fixedly connected with a plurality of spring hinges (30), one side outer wall of the spring hinge (30) is fixedly connected with a mounting platform (31), the outer wall of the outer protective tube (6) is fixedly connected with a plurality of composite nylon industrial baffles (27), the outer wall of the composite nylon industrial baffles (27) is provided with a plurality of through holes (29), one side of the composite nylon industrial baffles (27) is fixedly connected with a spring drawstring (44), the outer walls of both ends of the spring drawstring (44) are respectively fixedly connected with the outer walls of the mounting platforms (31) at both ends of the outer protective tube (6), and the outer wall of the composite nylon industrial baffles (27) is provided with a plurality of telescopic rods (28).

8. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 7, characterized in that: The outer wall of the inner exhaust pipe (7) is fixedly connected to a plurality of linkage plates (23), the outer wall of the linkage plate (23) is fixedly mounted with a magnet plate 1 (24), the inner wall of the flow slot (15) is fixedly connected to a retaining rod (34), the outer wall of the retaining rod (34) is movably connected to a brake plate (35), one side outer wall of the brake plate (35) is fixedly connected to an extension plate (36), the outer wall of the extension plate (36) at one end away from the brake plate (35) is fixedly connected to a magnet plate 2 (25), the magnet plate 2 (25) is magnetically connected to the magnet plate 1 (24), and the brake plate (35) is away from the extension plate (36). One side outer wall is movably fitted with the outer wall of the composite nylon industrial baffle (27); a telescopic rod (28) is arranged between the mounting platforms (31) at the upper and lower ends of the outer protective tube (6); both ends of the outer walls of the telescopic rod (28) are fixedly connected with mounting hinges (32); one side outer wall of the mounting hinge (32) is fixedly connected with one side outer wall of the mounting platform (31); the telescopic rod (28) is hinged to the mounting platform (31) through the mounting hinge (32); one side outer wall of the mounting platform (31) is fixedly connected with a limit baffle (33); the limit baffle (33) is movably fitted with one side outer wall of the telescopic rod (28).

9. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 7, characterized in that: A composite pull rope (38) is fixedly connected to the bottom outer wall of the installation platform (31), and the outer wall of one end of the composite pull rope (38) away from the installation platform (31) is fixedly connected to the outer sleeve of the limit bearing (12). The outer wall of the outer protective tube (6) is fixedly connected to a plurality of limit rollers (37), and the outer wall of the limit roller (37) is transmission-connected to the outer wall of the composite pull rope (38).

10. The acid-base washing circulation system for pretreatment of p-chlorotoluene tail gas adsorption equipment according to claim 1, characterized in that: The chlorotoluene tail gas emission concentration cylinder (46) is connected to the chlorotoluene tail gas emission pipe of the industrial workshop. The mixed gas in the chlorotoluene tail gas emission concentration cylinder (46) enters the neutralization tower (2) through the system fan (45), and the chlorotoluene tail gas is pre-treated by the atomizing spray rack (39) and sprayed to neutralize the chlorotoluene tail gas. The PH value of the reaction solution is controlled by the pre-installed PH meter in the spray system to replenish the medicine, so as to neutralize the chlorotoluene tail gas to the greatest extent.

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