CN113713733A - Control device for filling polymerization inhibitor in butadiene washing tower - Google Patents
Control device for filling polymerization inhibitor in butadiene washing tower Download PDFInfo
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- CN113713733A CN113713733A CN202111297478.1A CN202111297478A CN113713733A CN 113713733 A CN113713733 A CN 113713733A CN 202111297478 A CN202111297478 A CN 202111297478A CN 113713733 A CN113713733 A CN 113713733A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/008—Feed or outlet control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/20—Use of additives, e.g. for stabilisation
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Abstract
The invention discloses a control device for filling polymerization inhibitor in a butadiene washing tower, belonging to the technical field of butadiene, comprising a sodium nitrite solution tank and a support frame, wherein the sodium nitrite solution tank is placed on the ground, the support frame is arranged on the ground and connected with the sodium nitrite solution tank, the top of the support frame is provided with a driving motor, a driving block is arranged on a main shaft of the driving motor, a control assembly is also arranged on the support frame, and the control assembly is in interference fit with the driving block; the invention can complete the controlled blanking operation of the sodium nitrite solution by driving the driving block by the driving motor, and can clean the pipeline in the blanking process of the sodium nitrite solution so as to ensure the smoothness of the inner wall of the discharging pipe and avoid the phenomenon of crystallization and accumulation of the sodium nitrite solution, and sodium nitrite crystals after being scraped flow into the newly discharged sodium nitrite solution, thereby saving the material.
Description
Technical Field
The invention relates to the technical field of butadiene, in particular to a control device for filling a polymerization inhibitor in a butadiene washing tower.
Background
Butadiene is a conjugated diolefin with very active chemical property, under a certain condition, it is easy to produce end group polymer and peroxide self-polymer in the equipment and pipeline of the equipment, and its property is very unstable, and when it is impacted or heated rapidly, it can be quickly decomposed and exploded, and can initiate butadiene end group polymerization to produce white honeycomb-like solid. The formation process of the butadiene terminal polymer is a free radical chain growth process, the polymerization heat is high, once polymerization occurs, the polymerization heat cannot be taken away in a short time, and in turn, the generation of free radicals and a chain growth reaction are accelerated, the polymerization is accelerated, a vicious circle is formed, and finally implosion is generated. The polymer particles grow and extend outward until the device is filled. When butadiene end polymer fills the equipment or forms bulk polymer, the polymerization inhibitor has a limited effect once produced because of the partial active center shielded inside the solid particles, which can penetrate through the macromolecular ring formed by polymerization into the solid for linear butadiene molecules, and the polymerization inhibitor molecules with macromolecular groups are difficult to enter the solid. The location and amount of the polymerization inhibitor to be added are critical to ensure that butadiene does not form butadiene peroxide and end polymers in the apparatus.
The Chinese patent publication numbers are: CN112521248A, the patent name is a control device for filling polymerization inhibitor in a butadiene washing tower, the patent provides a control device for filling polymerization inhibitor in a butadiene washing tower, which belongs to the technical field of butadiene process, the device is provided with an auxiliary agent adding pipeline at a washing water inlet at the top of the tower, an auxiliary agent system is connected, the polymerization inhibitor in the auxiliary agent system is added into the butadiene washing tower, the auxiliary agent adding pipeline is provided with a regulating valve and two protection valves, the two protection valves and the valve are respectively arranged at two sides of the regulating valve 1, so that the auxiliary agent system enables the polymerization inhibitor to enter the top of the butadiene washing tower through the valve, the regulating valve and the valve; the bypass valve is arranged on a bypass of the regulating valve; the reverse pouring valve is arranged between the regulating valve and the fulcrum of the bypass and the auxiliary agent adding pipeline. The invention effectively reduces and delays the generation of butadiene peroxide and terminal polymer in the butadiene washing tower, leads the device to operate better and more stably, reduces economic loss caused by abnormal parking, and also reduces the potential safety hazard of the device due to the generation of polymer.
However, the above patent also has the following problems in filling the butadiene washing column with the polymerization inhibitor: this patent is discharged into the pipeline through sodium nitrite solution in, flows out again from the valve of pipeline and mixes with water, and partial sodium nitrite solution that stays in the pipeline remains and can form the crystallization after solidifying, and along with the permanent operation of apparatus, the crystallization can be piled up gradually and influence the income of sodium nitrate solution.
Disclosure of Invention
The embodiment of the invention provides a control device for filling a polymerization inhibitor in a butadiene washing tower, which aims to solve the technical problems that sodium nitrite solution is discharged into a pipeline, then flows out of a valve of the pipeline to be mixed with water, part of sodium nitrite solution staying in the pipeline is solidified to form crystals, and the crystals are gradually accumulated along with the long-term operation of an apparatus to influence the discharge of the sodium nitrate solution.
The embodiment of the invention adopts the following technical scheme: including sodium nitrite solution tank and support frame, sodium nitrite solution tank places subaerial, the support frame sets up subaerial and is connected with sodium nitrite solution tank, the top of support frame is equipped with driving motor, be equipped with the drive block on driving motor's the main shaft, still be equipped with control assembly on the support frame, control assembly and drive block conflict cooperation, control assembly includes connecting pipe, reset spring, upper blocking ball, lower blocking ball, control tube and unloading pipe, the connecting pipe sets up on the support frame and is connected with sodium nitrite solution tank, the control tube cover is established on the connecting pipe and with connecting pipe sliding fit, the fixed gag lever post that is equipped with on the support frame, control tube and gag lever post sliding fit, reset spring's both ends are connected with support frame and control tube respectively, the inside of control tube is pipeline and lower pipeline, the inner diameter of the upper pipeline is smaller than that of the lower pipeline, a plugging pipeline is arranged in the middle of the upper pipeline and is larger than that of the upper pipeline, the upper plugging ball is located in the plugging pipeline, the lower pipe is installed on the control pipe and is communicated with the upper pipeline of the control pipe, a scraping assembly is further arranged on the lower pipe, and the scraping assembly is in running fit with the lower pipe.
Further, scrape the material subassembly and include blending tank, blowing pipe, spacing, rotate the cover frame, scrape work or material rest and two spacing wheels two, blending tank fixed mounting is on the support frame, the blowing pipe is installed at the top of blending tank and is linked together with the blending tank, spacing fixed mounting is on the lateral wall of blowing pipe, two spacing wheel rotates and sets up on spacing, rotate the cover frame cover establish on the blowing pipe and with the blowing pipe normal running fit, be equipped with spiral helicine slide rail on rotating the cover frame, the slide rail setting just with two spacing wheel rolling fit between two spacing wheels, two scrape the material rest symmetry set up on rotating the cover frame and with blowing pipe normal running fit, two scrape the work or material rest and all adopt elastic material to make, the bottom of blowing pipe is equipped with the ooff valve.
Further, still be equipped with mixing arrangement on the support frame, mixing arrangement includes mixing element and discharge assembly, mixing element set up in the blending tank and with blending tank normal running fit, discharge assembly sets up on the support frame and is linked together with the blending tank.
Further, the mixing component comprises a working motor, a working rod, a moving frame, a working electric cylinder, a pushing frame, two hinged frames and two mixing frames, the working motor is arranged on the side wall of the supporting frame, the main shaft of the working motor extends into the mixing tank, the working rod is arranged on the main shaft of the working motor, the moving frame is arranged on the working rod and is in sliding fit with the working rod, one ends of the two hinged frames are rotatably arranged on two sides of the moving frame, the two mixing frames are rotatably arranged on the working rod, one ends of the two mixing frames are respectively in hinged fit with the other ends of the two hinged frames, the working electric cylinder is arranged on the outer side wall of the mixing tank, the telescopic end of the working electric cylinder extends into the mixing tank, the pushing frame is arranged on the telescopic end of the working electric cylinder and is connected with the moving frame, a blanking component is further arranged on the moving frame, the blanking assembly is arranged at the bottom of the mixing tank.
Further, unloading subassembly includes gear frame, dead lever, link, drive yoke, unloading pipeline, dwang and switch door, the one end of dead lever is rotated and is installed on the blending tank, the middle part of gear frame is rotated with the other end of dead lever and is connected, be equipped with the draw-in groove on the removal frame, the one end of gear frame is rotated and is set up in the draw-in groove on removing the frame, the one end of link articulates the other end at the gear frame, the one end of drive yoke articulates the other end at the link, unloading pipe installation is just both linked together in the bottom of blending tank, the dwang rotates to set up on the unloading pipeline, the rotation axis and the dwang fixed connection of switch door, the dwang is articulated to be cooperated with the other end of drive yoke.
Further, the discharge assembly comprises a water tank and a water pump, the water tank is installed on the support frame, the water pump is installed on the support frame and located beside the water tank, a water inlet pipe and a water outlet pipe are arranged on the water pump, the water inlet pipe is connected with the water tank, and the water outlet pipe is connected with the mixing tank.
Further, still be equipped with butadiene scrubbing tower and butadiene on the support frame and pass into the tower, butadiene scrubbing tower is placed on the support frame and butadiene scrubbing tower's top is linked together with the unloading pipeline, butadiene passes into the tower setting on the support frame and is connected with butadiene scrubbing tower.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
firstly, the invention can complete the control blanking operation of the sodium nitrite solution by driving the driving block by the driving motor, and can clean the pipeline in the blanking process of the sodium nitrite solution so as to ensure the smoothness of the inner wall of the discharging pipe and avoid the phenomenon of crystallization and accumulation of the sodium nitrite solution, and sodium nitrite crystals after being scraped flow into the newly discharged sodium nitrite solution, thereby saving the material.
Secondly, when oxygen needs to be removed from water in the mixing tank, the driving motor enables the driving block to rotate, when the driving block abuts against the top of the control tube, the control tube is driven to move and press down along with the driving block, the control tube moves down, the upper blocking ball floats upwards due to pressure intensity, sodium nitrite solution is guided into the control tube and upwards gushes into an upper pipeline in the control tube through a lower pipeline, the sodium nitrite solution in the upper pipeline in the control tube outwards flows out through a blanking tube, the sodium nitrite solution flowing out from the blanking tube is always within a specified standard interval through the intermittent discharging arrangement, when the driving block is not in contact with the top end of the control tube, the control tube is pushed upwards to the original position through a reset spring, at the moment, the lower blocking ball floats upwards due to the pressure intensity, the sodium nitrite solution in the sodium solution tank is discharged into the lower pipeline in the control tube through the connecting tube to supplement the sodium nitrite solution, and finishing the blanking control operation of the sodium nitrite solution.
Thirdly, when the sodium nitrite solution is discharged into the discharging pipe from the discharging pipe, the rotating sleeve frame is driven to move along with the downward movement of the discharging pipe, a sliding rail on the rotating sleeve frame moves through two limiting wheels on the limiting frames to drive the rotating sleeve frame to rotate on the discharging pipe, because the two material scraping frames are made of elastic materials, the two material scraping frames deform in the downward movement process of the rotating sleeve frame, so that the two material scraping frames move relatively, a space for the downward movement of the rotating sleeve frame is reserved between the two material scraping frames, the rotating sleeve frame drives the two material scraping frames to rotate, the material scraping treatment is carried out on the inner wall of the discharging pipe through the two material scraping frames, crystals are adhered to the pipe after the sodium nitrite solution is solidified, the produced crystals are gradually accumulated more and more in the operation of a long-term instrument to influence the discharge of the sodium nitrite solution, at the time, the material scraping treatment can be carried out on the discharging pipe through the material scraping frames, smooth on the assurance blowing pipe inner wall, the phenomenon that sodium nitrite solution crystallization is piled up can not appear, sodium nitrite crystal after scraping then flow into the newly-discharged sodium nitrite solution in, saved the material.
Fourthly, when the sodium nitrite solution flows into the mixing tank from the discharging pipe, the working motor enables the working rod to rotate, the working rod drives the movable frame to rotate, the two hinged frames drive the mixing frame to mix the water and the sodium nitrite solution in the mixing tank, when water and sodium nitrite solution are required to be mixed as soon as possible in emergency, the working electric cylinder drives the pushing frame to move, the pushing frame drives the moving frame to move downwards, the moving frame enables the angles of the two hinged frames to change, thereby driving the stirring angles of the two mixing frames to change, enlarging the stirring angle, generating larger vortex, having higher mixing speed and better deoxidation effect, and in the process that the working electric cylinder drives the pushing frame to move, the driving frame can increase the opening angle of the switch door through the rotating rod, so that the mixed water and the sodium nitrite solution can be discharged more quickly, and emergency situations can be met.
Fifthly, after water and sodium nitrite solution deoxidation in the mixing tank, then accessible work electricity jar drives the pushing frame and removes, pushing frame drives the moving frame and moves down, the one end that makes the driving frame moves along with moving the frame, the other end of driving frame then drives the driving frame and removes this moment, the driving frame is opened the switch door through the dwang and is discharged the mixed liquid after the deoxidation and accomplish the operation to the butadiene washing tower in, when meetting emergency and need carry out hybrid processing to water and sodium nitrite solution as early as possible, can accomplish and handle in-process mixed liquid row to butadiene washing tower with water and sodium nitrite solution deoxidation fast, accomplish work.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a first partial perspective view of the present invention;
FIG. 3 is a cross-sectional view of the control assembly of the present invention;
FIG. 4 is a second partial perspective view of the present invention;
FIG. 5 is a third partial perspective view of the present invention;
FIG. 6 is a partial perspective sectional view of the present invention;
FIG. 7 is a first partial perspective view of the mixing device of the present invention;
fig. 8 is a second partial perspective view of the mixing device of the present invention.
Reference numerals: 11. a sodium nitrite solution tank; 12. a support frame; 13. a drive motor; 14. a drive block; 2. a control component; 21. a connecting pipe; 22. a return spring; 23. an upper plugging ball; 24. a lower plugging ball; 25. a control tube; 26. a discharging pipe; 27. a limiting rod; 3. a scraping component; 31. a mixing tank; 32. discharging the material pipe; 33. a limiting frame; 34. rotating the sleeve frame; 341. a slide rail; 35. a material scraping frame; 36. a limiting wheel; 4. a mixing device; 41. a mixing assembly; 411. a working motor; 412. a working lever; 413. a movable frame; 414. a working electric cylinder; 415. a pushing frame; 416. a hinged frame; 417. a mixing frame; 42. a blanking assembly; 421. a transmission frame; 422. fixing the rod; 423. a connecting frame; 424. a driving frame; 425. a blanking pipeline; 426. rotating the rod; 427. opening and closing the door; 43. a discharge assembly; 432. a water tank; 433. a water pump; 5. washing the butadiene with water; 6. butadiene is passed to the column.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 8, an embodiment of the present invention provides a control device for filling a polymerization inhibitor in a butadiene washing tower, including a sodium nitrite solution tank 11 and a support frame 12, where the sodium nitrite solution tank 11 is placed on the ground, the support frame 12 is disposed on the ground and connected to the sodium nitrite solution tank 11, a driving motor 13 is disposed at the top of the support frame 12, a driving block 14 is disposed on a main shaft of the driving motor 13, a control assembly 2 is further disposed on the support frame 12, and the control assembly 2 is in interference fit with the driving block 14; the invention can complete the blanking control operation of the sodium nitrite solution by driving the driving block 14 by the driving motor 13, and can clean the pipeline in the blanking process of the sodium nitrite solution so as to ensure the smoothness on the inner wall of the discharging pipe 32 and avoid the phenomenon of crystallization and accumulation of the sodium nitrite solution, and sodium nitrite crystals after being scraped flow into the newly discharged sodium nitrite solution, thereby saving the material.
Preferably, the control assembly 2 includes a connecting pipe 21, a return spring 22, an upper blocking ball 23, a lower blocking ball 24, a control pipe 25 and a discharging pipe 26, the connecting pipe 21 is disposed on the support frame 12 and connected with the sodium nitrite solution tank 11, the control pipe 25 is sleeved on the connecting pipe 21 and is in sliding fit with the connecting pipe 21, a limiting rod 27 is fixedly disposed on the support frame 12, the control pipe 25 is in sliding fit with the limiting rod 27, two ends of the return spring 22 are respectively connected with the support frame 12 and the control pipe 25, the inner part of the control pipe 25 is an upper pipe and a lower pipe, the inner diameter of the upper pipe is smaller than that of the lower pipe, the middle part of the upper pipe is provided with a blocking pipe, the inner diameter of the blocking pipe is larger than that of the upper pipe, the upper blocking ball 23 is located in the blocking pipe, the discharging pipe 26 is mounted on the control pipe 25 and is communicated with the upper pipe of the control pipe 25, the blanking pipe 26 is also provided with a scraping component 3, and the scraping component 3 is in running fit with the blanking pipe 26; when oxygen needs to be removed from water in the mixing tank 31, the driving motor 13 rotates the driving block 14, when the driving block 14 abuts against the top of the control tube 25, the control tube 25 is driven to move and press down along with the driving block 14, the control tube 25 moves down, the upper blocking ball 23 floats upwards due to pressure intensity, sodium nitrite solution is introduced into the control tube 25 and flows upwards into an upper pipeline in the control tube 25 through a lower pipeline, the sodium nitrite solution in the upper pipeline in the control tube 25 flows outwards through a lower pipe 26, the sodium nitrite solution flowing out from the lower pipe 26 can be always within a specified standard interval through the arrangement of intermittent discharge, when the driving block 14 is not in contact with the top end of the control tube 25, the control tube 25 is pushed upwards to the original position through the reset spring 22, the lower blocking ball 24 floats upwards due to pressure intensity, the sodium nitrite solution in the sodium solution tank 11 is discharged into the lower pipeline in the control tube 25 through the connecting tube 21 to be supplemented with the sodium nitrite solution, and finishing the blanking control operation of the sodium nitrite solution.
Preferably, the scraping component 3 comprises a mixing tank 31, a discharging pipe 32, a limiting frame 33, a rotating sleeve frame 34, two scraping frames 35 and two limiting wheels 36, the mixing tank 31 is fixedly arranged on the support frame 12, the discharging pipe 32 is arranged at the top of the mixing tank 31 and communicated with the mixing tank 31, the limiting frame 33 is fixedly arranged on the side wall of the discharging pipe 32, the two limiting wheels 36 are rotatably arranged on the limiting frame 33, the rotating sleeve frame 34 is sleeved on the blanking pipe 26 and is in rotating fit with the blanking pipe 26, a spiral sliding rail 341 is arranged on the rotating sleeve frame 34, the sliding rail 341 is arranged between the two limiting wheels 36 and is in rolling fit with the two limiting wheels 36, the two scraping frames 35 are symmetrically arranged on the rotating sleeve frame 34 and are in rotating fit with the discharging pipe 32, both the two scraping frames 35 are made of elastic materials, and the bottom of the discharging pipe 32 is provided with a switch valve; when the sodium nitrite solution is discharged from the discharging pipe 26 into the discharging pipe 32, the rotating sleeve frame 34 is driven to move along with the downward movement of the discharging pipe 26, the sliding rail 341 on the rotating sleeve frame 34 moves through the two limiting wheels 36 on the limiting frame 33, and the rotating sleeve frame 34 is driven to rotate on the discharging pipe 26, because the two scraping frames 35 are made of elastic materials, in the downward movement process of the rotating sleeve frame 34, the two scraping frames 35 deform, so that the two scraping frames 35 move relatively, a space for the downward movement of the rotating sleeve frame 34 is reserved between the two scraping frames 35, so that the rotating sleeve frame 34 rotates to drive the two scraping frames 35 to rotate, the scraping treatment is performed on the inner wall of the discharging pipe 32 through the two scraping frames 35, crystals are adhered to the pipe after the sodium nitrite solution is solidified, and the generated crystals are gradually accumulated more and more in the long-term operation of the apparatus, influence sodium nitrite solution's emission, then the accessible is scraped the work or material rest 35 and is scraped the material and handle blowing pipe 32 this moment to ensure the clean and tidy on the blowing pipe 32 inner wall, the accumulational phenomenon of sodium nitrite solution crystallization can not appear, during sodium nitrite crystal after scraping then flows into the newly-discharged sodium nitrite solution, saved the material.
Preferably, the support frame 12 is further provided with a mixing device 4, the mixing device 4 comprises a mixing component 41 and a discharging component 43, the mixing component 41 is arranged in the mixing tank 31 and is in running fit with the mixing tank 31, and the discharging component 43 is arranged on the support frame 12 and is communicated with the mixing tank 31; when the sodium nitrite solution is used for deoxidation treatment of water, the mixing device 4 can be used for fully mixing and deoxidation operation of the sodium nitrite solution and the water in a short time, and the discharge component 43 is used for discharging the water into the mixing tank 31 to be mixed and deoxidized with the sodium nitrite solution.
Preferably, the mixing assembly 41 comprises a working motor 411, a working rod 412, a moving frame 413, a working electric cylinder 414, a pushing frame 415, two hinge frames 416 and two mixing frames 417, wherein the working motor 411 is mounted on the side wall of the support frame 12, the main shaft of the working motor 411 extends into the mixing tank 31, the working rod 412 is mounted on the main shaft of the working motor 411, the moving frame 413 is arranged on the working rod 412 and is in sliding fit with the working rod 412, one end of each of the two hinge frames 416 is rotatably arranged on two sides of the moving frame 413, the two mixing frames 417 are rotatably arranged on the working rod 412, one end of each of the two mixing frames 417 is respectively in hinge fit with the other end of each of the two hinge frames 416, the working electric cylinder 414 is arranged on the outer side wall of the mixing tank 31, the telescopic end of the working electric cylinder 414 extends into the mixing tank 31, the pushing frame 415 is mounted on the telescopic end of the working electric cylinder 414 and is connected with the moving frame 413, the moving frame 413 is further provided with a blanking assembly 42, and the blanking assembly 42 is arranged at the bottom of the mixing tank 31; when the sodium nitrite solution flows into the mixing tank 31 from the discharging pipe 32, the working motor 411 rotates the working rod 412, the working rod 412 drives the moving frame 413 to rotate, so that the two hinged frames 416 drive the mixing frame 417 to mix the water and the sodium nitrite solution in the mixing tank 31, when an emergency situation occurs and the water and the sodium nitrite solution need to be mixed as soon as possible, the working electric cylinder 414 drives the pushing frame 415 to move, the pushing frame 415 drives the moving frame 413 to move downwards, the moving frame 413 changes the angles of the two hinged frames 416 so as to drive the stirring angles of the two mixing frames 417 to change, so that the stirring angle is increased, the generated vortex is mixed faster, the deoxidation effect is better, and in the process that the working electric cylinder 414 drives the pushing frame 415 to move, the angle of the driving frame 424, which opens the switch door 427 through the rotating rod 426, is increased, so that the mixed water and the sodium nitrite solution are discharged more quickly, to cope with the occurrence of an emergency.
Preferably, the blanking assembly 42 includes a transmission frame 421, a fixed rod 422, a connecting frame 423, a driving frame 424, a blanking pipeline 425, a rotating rod 426 and a switch door 427, one end of the fixed rod 422 is rotatably installed on the mixing tank 31, the middle part of the transmission frame 421 is rotatably connected with the other end of the fixed rod 422, a clamping groove is arranged on the moving frame 413, one end of the transmission frame 421 is rotatably arranged in the clamping groove on the moving frame 413, one end of the connecting frame 423 is hinged to the other end of the transmission frame 421, one end of the driving frame 424 is hinged to the other end of the connecting frame 423, the blanking pipeline 425 is installed at the bottom of the mixing tank 31 and communicated with the mixing tank 31, the rotating rod 426 is rotatably arranged on the blanking pipeline 425, a rotating shaft of the switch door 427 is fixedly connected with the rotating rod 426, and the rotating rod 426 is hinged to match with the other end of the driving frame 424; when the water and the sodium nitrite solution in the mixing tank 31 have oxygen removal, the electric working cylinder 414 can drive the pushing frame 415 to move, the pushing frame 415 drives the moving frame 413 to move downwards, so that one end of the transmission frame 421 moves along with the moving frame 413, and the other end of the transmission frame 421 drives the driving frame 424 to move, the driving frame 424 opens the switch door 427 to discharge the mixed liquid after oxygen removal into the butadiene washing tower 5 through the rotating rod 426 to complete the operation, when the water and the sodium nitrite solution need to be mixed as soon as possible in an emergency, the mixed liquid can be discharged into the butadiene washing tower 5 to be processed in the process of rapidly removing oxygen from the water and the sodium nitrite solution, and the operation is completed.
Preferably, the discharging assembly 43 comprises a water tank 432 and a water pump 433, the water tank 432 is installed on the support frame 12, the water pump 433 is installed on the support frame 12 and located beside the water tank 432, the water pump 433 is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the water tank 432, and the water outlet pipe is connected with the mixing tank 31; the water in the water tank 432 is discharged into the mixing tank 31 by the water pump 433, and the water is mixed with the sodium nitrite solution.
Preferably, the supporting frame 12 is further provided with a butadiene water washing tower 5 and a butadiene transfer-in tower 6, the butadiene water washing tower 5 is placed on the supporting frame 12, the top of the butadiene water washing tower 5 is communicated with the blanking pipeline 425, and the butadiene transfer-in tower 6 is arranged on the supporting frame 12 and connected with the butadiene water washing tower 5; butadiene is conveyed into the tower 6 and is provided with a conveying system, butadiene can be automatically extracted and conveyed, the butadiene is conveyed into the butadiene water washing tower 5 through the butadiene conveying tower 6, the mixed liquid is discharged into the butadiene water washing tower 5 through the blanking pipeline 425 above the butadiene water washing tower 5, and the generation of butadiene peroxide and end polymers in the butadiene water washing tower 5 can be effectively reduced and delayed.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a controlling means of polymerization inhibitor is filled to butadiene scrubbing tower, includes sodium nitrite solution tank (11) and support frame (12), sodium nitrite solution tank (11) are placed subaerial, its characterized in that, support frame (12) set up subaerial and be connected with sodium nitrite solution tank (11), the top of support frame (12) is equipped with driving motor (13), be equipped with driving block (14) on driving motor's (13) the main shaft, still be equipped with control assembly (2) on support frame (12), control assembly (2) contradict the cooperation with driving block (14), control assembly (2) include connecting pipe (21), reset spring (22), go up shutoff ball (23), lower shutoff ball (24), control tube (25) and unloading pipe (26), connecting pipe (21) set up on support frame (12) and are connected with sodium nitrite solution tank (11), the control tube (25) is sleeved on the connecting tube (21) and is in sliding fit with the connecting tube (21), a limiting rod (27) is fixedly arranged on the support frame (12), the control tube (25) is in sliding fit with the limiting rod (27), two ends of the return spring (22) are respectively connected with the support frame (12) and the control tube (25), the inner part of the control pipe (25) is divided into an upper pipeline and a lower pipeline, the inner diameter of the upper pipeline is smaller than that of the lower pipeline, the middle part of the upper pipeline is provided with a plugging pipeline, the inner diameter of the plugging pipeline is larger than that of the upper pipeline, the upper plugging ball (23) is positioned in the plugging pipeline, the discharging pipe (26) is arranged on the control pipe (25) and is communicated with the upper pipeline of the control pipe (25), the blanking pipe (26) is further provided with a scraping assembly (3), and the scraping assembly (3) is in running fit with the blanking pipe (26).
2. The polymerization inhibitor filling control device for the butadiene water washing tower according to claim 1, wherein the scraping component (3) comprises a mixing tank (31), a discharging pipe (32), a limiting frame (33), a rotating sleeve frame (34), two scraping frames (35) and two limiting wheels (36), the mixing tank (31) is fixedly installed on the support frame (12), the discharging pipe (32) is installed at the top of the mixing tank (31) and communicated with the mixing tank (31), the limiting frame (33) is fixedly installed on the side wall of the discharging pipe (32), the two limiting wheels (36) are rotatably installed on the limiting frame (33), the rotating sleeve frame (34) is sleeved on the discharging pipe (26) and rotatably matched with the discharging pipe (26), a spiral sliding rail (341) is arranged on the rotating sleeve frame (34), the sliding rail (341) is arranged between the two limiting wheels (36) and is rotatably matched with the two limiting wheels (36), two scrape work or material rest (35) symmetry setting on rotating cover frame (34) and with blowing pipe (32) normal running fit, two scrape work or material rest (35) and all adopt elastic material to make, the bottom of blowing pipe (32) is equipped with the ooff valve.
3. The device for controlling filling of the polymerization inhibitor in the butadiene water washing tower is characterized in that a mixing device (4) is further arranged on the support frame (12), the mixing device (4) comprises a mixing component (41) and a discharging component (43), the mixing component (41) is arranged in the mixing tank (31) and is in running fit with the mixing tank (31), and the discharging component (43) is arranged on the support frame (12) and is communicated with the mixing tank (31).
4. The device for controlling filling of polymerization inhibitor in butadiene water scrubbing tower according to claim 3, wherein the mixing component (41) comprises a working motor (411), a working rod (412), a moving frame (413), a working electric cylinder (414), a pushing frame (415), two hinged frames (416) and two mixing frames (417), the working motor (411) is installed on the side wall of the support frame (12), the main shaft of the working motor (411) extends into the mixing tank (31), the working rod (412) is installed on the main shaft of the working motor (411), the moving frame (413) is installed on the working rod (412) and is in sliding fit with the working rod (412), one end of the two hinged frames (416) is rotatably installed on both sides of the moving frame (413), the two mixing frames (417) are rotatably installed on the working rod (412), one end of the two mixing frames (417) is respectively in hinged fit with the other end of the two hinged frames (416), the utility model discloses a mixing tank, including jar (413), propelling movement frame (415), work electric jar (414), propelling movement frame (413), unloading subassembly (42) still are equipped with on the removal frame (413), unloading subassembly (42) set up the bottom at mixing tank (31) on the lateral wall of work electric jar (414), the flexible end of work electric jar (414) extends to in mixing tank (31), install on the flexible end of work electric jar (414) and promote frame (451) and be connected with removal frame (413).
5. The device for controlling filling of polymerization inhibitor in a butadiene water washing tower according to claim 4, wherein the blanking assembly (42) comprises a transmission frame (421), a fixed rod (422), a connection frame (423), a driving frame (424), a blanking pipeline (425), a rotating rod (426) and a switch door (427), one end of the fixed rod (422) is rotatably installed on the mixing tank (31), the middle part of the transmission frame (421) is rotatably connected with the other end of the fixed rod (422), the moving frame (413) is provided with a clamping groove, one end of the transmission frame (421) is rotatably arranged in the clamping groove of the moving frame (413), one end of the connection frame (423) is hinged to the other end of the transmission frame (421), one end of the driving frame (424) is hinged to the other end of the connection frame (423), the blanking pipeline (425) is installed at the bottom of the mixing tank (31) and is communicated with the two, the rotating rod (426) is rotatably arranged on the blanking pipeline (425), the rotating shaft of the switch door (427) is fixedly connected with the rotating rod (426), and the rotating rod (426) is hinged and matched with the other end of the driving frame (424).
6. A butadiene water washing tower polymerization inhibitor filling control device according to claim 3, wherein the discharging component (43) comprises a water tank (432) and a water pump (433), the water tank (432) is installed on the support frame (12), the water pump (433) is installed on the support frame (12) and located beside the water tank (432), the water pump (433) is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe is connected with the water tank (432), and the water outlet pipe is connected with the mixing tank (31).
7. The device for controlling the filling of the polymerization inhibitor in the butadiene washing tower as claimed in claim 5, wherein the support frame (12) is further provided with a butadiene washing tower (5) and a butadiene transfer-in tower (6), the butadiene washing tower (5) is placed on the support frame (12) and the top of the butadiene washing tower (5) is communicated with the blanking pipeline (425), and the butadiene transfer-in tower (6) is arranged on the support frame (12) and is connected with the butadiene washing tower (5).
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| CN113713733B (en) | 2022-02-08 |
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