CN117046287B - Alkali washing neutralization device for butadiene rubber - Google Patents
Alkali washing neutralization device for butadiene rubber Download PDFInfo
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- CN117046287B CN117046287B CN202311311563.8A CN202311311563A CN117046287B CN 117046287 B CN117046287 B CN 117046287B CN 202311311563 A CN202311311563 A CN 202311311563A CN 117046287 B CN117046287 B CN 117046287B
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- main tank
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- 239000003513 alkali Substances 0.000 title claims abstract description 66
- 238000006386 neutralization reaction Methods 0.000 title claims abstract description 32
- 239000005062 Polybutadiene Substances 0.000 title claims abstract description 23
- 229920002857 polybutadiene Polymers 0.000 title claims abstract description 23
- 238000005406 washing Methods 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 135
- 238000010521 absorption reaction Methods 0.000 claims abstract description 63
- 239000000835 fiber Substances 0.000 claims abstract description 63
- 239000003292 glue Substances 0.000 claims abstract description 26
- 230000000149 penetrating effect Effects 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 238000003475 lamination Methods 0.000 claims 1
- 230000003472 neutralizing effect Effects 0.000 claims 1
- 230000002378 acidificating effect Effects 0.000 abstract description 20
- 239000000126 substance Substances 0.000 abstract description 20
- 238000004140 cleaning Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 10
- 229920001971 elastomer Polymers 0.000 description 9
- 239000005060 rubber Substances 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 7
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 6
- 150000003839 salts Chemical class 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- KZMGYPLQYOPHEL-UHFFFAOYSA-N Boron trifluoride etherate Chemical compound FB(F)F.CCOCC KZMGYPLQYOPHEL-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- MSOUPGALSMOJRB-UHFFFAOYSA-N [Ni].C=CC=C Chemical compound [Ni].C=CC=C MSOUPGALSMOJRB-UHFFFAOYSA-N 0.000 description 1
- 125000006615 aromatic heterocyclic group Chemical group 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 150000001993 dienes Chemical class 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- UIEKYBOPAVTZKW-UHFFFAOYSA-L naphthalene-2-carboxylate;nickel(2+) Chemical compound [Ni+2].C1=CC=CC2=CC(C(=O)[O-])=CC=C21.C1=CC=CC2=CC(C(=O)[O-])=CC=C21 UIEKYBOPAVTZKW-UHFFFAOYSA-L 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention belongs to the technical field of cleaning devices, and particularly relates to a butadiene rubber alkaline washing neutralization device which comprises a tank body assembly, wherein the tank body assembly comprises a main tank, a plurality of auxiliary tanks are arranged around the main tank at equal intervals, a dispersing assembly is arranged in the main tank, and a contact assembly is arranged in the auxiliary tank. The glue tank gas is input into the main tank from the bottom pipe, the glue tank gas is in dispersed contact with cold absorption oil and alkali liquor flowing from top to bottom at the position of the dispersing component, the cold absorption oil is absorbed by the cold absorption oil and is in contact with the alkali liquor for primary neutralization, then the cold absorption oil absorbing the glue tank gas is dispersed into a plurality of auxiliary tanks, the cold absorption oil and the alkali liquor are in mixed contact at the position of the contacting component in the auxiliary tanks, the alkali liquor can be pulled to form a large amount of liquid films among fiber bundles of the contacting component due to liquid viscosity, the contact surface area of the cold absorption oil and the alkali liquor is greatly improved in a film state, the flow velocity of the cold absorption oil flowing down along the fiber bundles is slower, the contact time of acidic substances and the alkali liquor is long, and the neutralization is fully carried out.
Description
Technical Field
The invention relates to the technical field of cleaning devices, in particular to a butadiene rubber alkali washing neutralization device.
Background
The production method of nickel butadiene rubber is that 1, 3-butadiene is used as monomer raw material, solvent oil is used as carrier, under the initiation of nickel catalyst, butadiene is producedThe diene is subjected to regular directional polymerization to generate cis-1, 4-butadiene rubber, unreacted butadiene and part of solvent oil in the glue solution are flash evaporated from the top of a glue solution tank after polymerization reaction, trace boron trifluoride diethyl etherate and nickel naphthenate remained in the system are entrained in flash evaporation gas phase, and the flash evaporation gas of the glue tank enters a recovery solvent system and is subjected to water decomposition under certain conditions to generate the butadiene-styrene copolymer、HF、/>And (3) corroding subsequent pipelines and equipment by using the multi-element acidic substances.
The Chinese invention document with the publication number of CN115283338B discloses a butadiene rubber alkaline washing neutralization device, and a rotary spray head of the device can automatically lift without external power during alkaline washing, so that the trouble of manually controlling the lifting of a liquid guide bin in the above patent is avoided, and the alkaline washing efficiency is further improved;
however, only the spray head is used for rotary spraying, alkali liquor is only sprayed out by the spray head in a horizontal rotation mode, drops quickly from top to bottom in a water drop shape, and has small contact area with the gas of the rubber tank entering the alkali wash tank, so that the reaction is insufficient, more acidic substances remain in the gas phase, and therefore, the butadiene rubber alkali wash neutralization device is provided to solve the problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a butadiene rubber alkali washing neutralization device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a butadiene rubber alkali wash neutralization apparatus, includes a jar body subassembly, jar body subassembly includes a main jar, a plurality of auxiliary tanks are arranged to main jar equidistance all around, main jar top is run through and is installed alkali lye and add pipe and the feed liquor pipe that supplies cold absorption oil to get into, main jar bottom is run through and is installed the bottom tube that supplies gluey jar gas to get into, main jar embeds the dispersion package, main jar bottom runs through and has the drain pipe, drain pipe top is installed and is equipped with the liquid ring of joining in marriage with auxiliary tank complex, alkali lye adds pipe and drain pipe conduction connection, auxiliary tank embeds contact assembly; the dispersing assembly comprises a plate body, the inner wall of the main tank is assembled and connected with the outer edge of the plate body, the plate body is provided with annular array slits, and the glue tank gas, alkali liquor and cold absorption oil are in vertical opposite-impact contact at the slit positions; the contact assembly comprises a plurality of guide rings, wherein middle plates are arranged in the middle of the guide rings, liquid passing rings are embedded in the middle plates, fiber bundles are arranged between the liquid passing rings in a penetrating manner, the length of each fiber bundle is larger than the distance between two adjacent liquid passing rings, the fiber bundles are extruded and dispersed to form a fusiform, and alkali liquid and cold absorption oil form a flowing liquid film between the fiber bundles through liquid viscosity;
in the flash evaporation steam neutralization treatment of butadiene rubber, rubber can enter a main tank from a bottom pipe, cold absorption oil is added from a liquid inlet pipe position, and alkali liquid is added from an alkali liquid adding pipe position, so that the rubber can gas, the alkali liquid and the cold absorption oil are in up-down opposite-impact contact at a slit position, acidic substances in the rubber can gas are fully absorbed into the cold absorption oil, then the cold absorption oil wrapped with the acidic substances enters a secondary tank, saturated alkali liquid thoroughly neutralizes the cold absorption oil in the secondary tank, mixed liquid enters fiber bundles through a liquid ring, the fiber bundles are extruded and dispersed to form a plurality of crisscrossed film-shaped liquid due to the action of liquid viscosity, and the contact time between the alkali liquid and the cold absorption oil can be prolonged because the liquid viscosity leads to the reduction of liquid flow velocity.
Preferably, the outer side wall of the main tank is embedded and provided with a heat conducting block, and the heat conducting block penetrates through the side wall of the auxiliary tank to be in direct contact with the guide ring;
in order to improve the absorption of cold absorption oil to acidic substances in the glue tank gas, the temperature of the main tank is transferred into a plurality of auxiliary tanks through the heat conducting blocks, so that the flash steam is prevented from quickly increasing the temperature of the cold absorption oil, acidic substance molecules are more easily fused into the cold absorption oil and transferred to the heat of the auxiliary tanks, the temperature of liquid in the auxiliary tanks can be improved, and the efficiency of liquid neutralization reaction can be improved.
Preferably, the top end of the main tank is provided with an overflow pipe in a penetrating way, a bypass pipe is arranged between the overflow pipe and the bottom pipe in series, and an electromagnetic valve is arranged on the bypass pipe;
in order to ensure that the exhaust gas of the main tank meets the standard, after the glue tank gas is absorbed and treated, the glue tank gas is discharged from the overflow pipe, and the tail end of the overflow pipe is provided with a PH value sensor, when the acidity of the discharged gas is detected to be greater than the discharge standard, the electromagnetic valve is started to enable part of the gas waiting to be discharged to flow back from the bypass pipe to the position of the bottom pipe for secondary absorption, the backflow quantity is the lower limit with the discharge meeting the discharge standard, and the exhaust gas of the overflow pipe is ensured to meet the requirements.
Preferably, the alkali liquor adding pipe comprises a vertical part and a horizontal part, wherein the vertical part is inserted and arranged in the upper space of the liquid outlet pipe, the side wall of the vertical part in the liquid outlet pipe is provided with a dispersing hole which is arranged in a stacking way, the horizontal part is connected with a flow control valve in series, and the horizontal part is connected with the main tank in a conducting way;
in order to facilitate the addition of alkali liquor into the system, the horizontal part adds a small amount of alkali liquor into the main tank, the addition is controlled by the flow control valve, the cold absorption oil is prevented from being excessively diluted, too high exhaust alkalinity caused by the fact that too much alkali liquor is discharged along with gas is avoided, and the vertical part disperses and adds the alkali liquor into the liquid outlet pipe through the dispersing holes, and the cold absorption oil is premixed with the alkali liquor before entering the auxiliary tank.
Preferably, the slits adopt a rectangular structure, the slits have two lengths, the long slits and the short slits are arranged in a staggered manner, and the shorter slits are arranged close to the outer edge of the plate body;
in order to ensure the passing efficiency of the gas-liquid hedging, the slits are designed into long and short slits, the longer slits are slightly smaller than the radius of the plate body, the annular array is arranged on the plate body and is positioned close to the outer edge of the plate body, the distance between the slits is larger due to the linear divergence effect, and the short slits are inserted between the longer slits, so that the flow excess in unit time can be improved.
Preferably, the plate body is provided with a convex pipe at the top end of the slit, the top end of the convex pipe is provided with a hood with a downward opening, and an exchange channel is formed between the inner wall of the hood and the outer wall of the convex pipe;
in order to further improve the absorption effect of cold absorption oil on glue tank gas, a convex pipe is arranged at the top end of the slit, a cover cap with a downward opening is wrapped at the opening position of the top end of the convex pipe, so that gas and liquid can flow through the plate body only after crossing the top end of the convex pipe and the bottom end of the cover cap, the bottom end of the cover cap is lower than the top end of the convex pipe, an annular exchange channel is formed between the inner wall of the cover cap and the outer wall of the convex pipe, gas and liquid are intersected in the annular exchange channel, the contact area and the contact time are further improved, and the absorption effect of the cold absorption oil on acidic substances is improved.
Preferably, the dispersing assemblies are arranged in a plurality, the dispersing assemblies are vertically and equidistantly stacked, and an overhead baffle is arranged at one end of the bottom pipe, which faces the dispersing assemblies;
in order to ensure thorough gas-liquid contact, a plurality of dispersing components are arranged up and down in a stacked manner, repeated opposite flushing and mixing can be carried out in gas-liquid flow, the thorough mixing is ensured, and an overhead baffle at the top end of the bottom pipe prevents liquid from directly entering the bottom pipe.
Preferably, a vertical plate is arranged in the middle of the guide ring, a guide groove vertically sliding with the vertical plate is formed in the side wall of the heat conduction block, a ring sleeve is arranged at one end of the vertical plate, which is positioned at the center of the guide ring, a center shaft is arranged in the ring sleeve in a penetrating manner, a sliding pin is arranged on the inner wall of the ring sleeve, and a spiral groove sliding with the sliding pin is formed in the outer wall of the center shaft;
in order to adjust the degree that the fiber bundles are extruded and dispersed, the bottom end of the middle shaft extends to the outer side of the lower part of the auxiliary tank and can be driven to rotate, the spiral groove is divided into an upper section and a lower section, and the rotation directions are opposite, so that when the middle shaft rotates, the upper section and the lower section of spiral groove can extrude the sliding pin to respectively drive the upper guide ring and the lower guide ring to be close to the middle fixed guide ring, at the moment, the fiber bundles can be further bent and dispersed to the periphery due to extrusion of the two ends, the fiber bundles can be folded after the inversion, and then the mutual gaps of the fiber bundles can be adjusted, and a large number of liquid films can be prevented from being formed in a stable mode when liquid flows through the fiber bundles too small or too large.
Preferably, the middle plate is rotationally connected with the guide ring, an embedded groove matched with the middle plate is formed in the middle of the vertical plate, a sliding hole is formed in the middle of the middle plate, and a vertical groove vertically sliding with the sliding hole is formed in the outer wall of the middle shaft;
in order to perform self-cleaning of the fiber bundles, neutralization salt is precipitated in the neutralization reaction and is adhered to the surfaces of the fiber bundles, a middle shaft can be regularly rotated positively and negatively, and when the middle shaft drives a guide ring to move up and down, the middle plate is driven to rotate relative to the guide ring through the cooperation of a sliding connection hole and a vertical groove, so that the fiber bundles among different liquid passing rings are mutually wound and rubbed to perform self-cleaning.
Preferably, the edge of the middle plate is provided with an adapter part, the middle part of the outer side of the liquid passing ring is provided with an outer gear ring, the inner wall of the guide ring is provided with a tooth socket meshed with the outer gear ring, the edge of the liquid passing ring is provided with a through hole for the fiber bundle to pass through and be installed, and the fiber bundle is sleeved with an end ring at the through hole;
in order to further improve self-cleaning's efficiency, set up outer ring gear in the liquid ring outside of crossing, when the medium plate is rotatory relative guide ring, the liquid ring of crossing can take place the rotation under the meshing cooperation of tooth's socket and outer ring gear, make the multiunit fibre bundle on the same liquid ring of crossing also twist reverse the winding each other, improve self-cleaning's effect, the accessory jar divide into top cap, well shell and bottom plate, have through bolt fastening each other, can take apart the top cap and the bottom plate of accessory jar, take out the fibre bundle from the through-hole through dismantling the end ring, change the fibre bundle after the repetitious usage, the follow-up maintenance of being convenient for.
Compared with the prior art, the butadiene rubber alkali washing neutralization device has the advantages that:
1. through the arrangement of the tank body assembly, glue tank gas is input into the main tank from the bottom pipe, the glue tank gas is in dispersion contact with cold absorption oil and alkali liquor mixed liquor flowing from top to bottom at the position of the dispersion assembly, the glue tank gas is absorbed by the cold absorption oil and is in contact with the alkali liquor for primary neutralization, then the cold absorption oil absorbing the glue tank gas is dispersed into a plurality of auxiliary tanks, the cold absorption oil and the alkali liquor are in mixed contact at the position of the contact assembly in the auxiliary tanks, the alkali liquor can be pulled to form a large number of liquid films between fiber bundles of the contact assembly due to liquid viscosity, the contact surface area of the cold absorption oil and the alkali liquor is greatly improved in a film state, the flow velocity of the cold absorption oil flowing down along the fiber bundles is slower, the contact time of acidic substances and the alkali liquor is long, and secondary neutralization is fully carried out;
2. through the arrangement of the dispersing component, when primary neutralization is carried out, the dispersing component divides the main tank into a plurality of layers of spaces, when glue tank gas floats upwards from bottom to top, the glue tank gas is firstly dispersed into a plurality of parts by a plurality of rectangular slits, a hood and a convex pipe are arranged at the slit positions, an annular exchange channel is formed between the hood and the convex pipe, mixed liquid flows from the exchange channel position to the countryside, glue tank gas floats upwards from the exchange channel position, the flow path is reduced, so that liquid and gas are spread and dispersed, the oppositely passing gas and liquid are fully contacted, unabsorbed gas can flow back to the bottom pipe position from a bypass pipe for secondary absorption, and the absorption effect is improved;
3. through the setting of contact assembly, contact assembly's fiber bundle is dispersed into the multibeam, install around a plurality of liquid rings that cross, liquid is gathered to liquid ring position by guide ring and medium plate, flow to fiber bundle and disperse, and the interval between the adjacent liquid rings that cross is less than fiber bundle's length, make fiber bundle strut into the arc, can strut and disperse into vertically and horizontally staggered's state, form the liquid film more easily each other, can produce the salt solid that crystallization separated out in the neutralization reaction, through the rotation of axis, drive the medium plate rotatory and be close in the middle, the pivoted liquid ring that crosses matches vertical gliding guide ring can twist reverse and extrude fiber bundle, can extrude the crystallization salt on surface and break away from, be convenient for carry out self-cleaning.
Drawings
FIG. 1 is a right side view of the present invention;
FIG. 2 is a bottom view of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is a schematic illustration in cross-section between a main tank and a dispersion assembly of the present invention;
FIG. 5 is a schematic view in cross-section between a secondary tank and a contact assembly of the present invention;
FIG. 6 is a schematic view of the position of the upper structure of the contact assembly of the present invention;
FIG. 7 is a schematic cross-sectional view of the upper structure of the contact assembly of the present invention;
FIG. 8 is a schematic view showing the upper structure of the contact assembly of the present invention in a disassembled state;
fig. 9 is a schematic view showing the separation of the liquid passing ring, the middle plate and the middle shaft according to the present invention.
In the figure: 1. a main tank; 11. a bottom tube; 12. an overflow pipe; 13. a bypass pipe; 14. a liquid outlet pipe; 141. a liquid dispensing ring; 15. a liquid inlet pipe; 16. a dispersion assembly; 161. a plate body; 162. a slit; 163. a convex tube; 164. a cap; 165. exchange channels; 2. a sub tank; 21. a liquid discharge pipe; 22. a guide ring; 221. a riser; 222. a slide pin; 223. tooth slots; 224. a ring sleeve; 23. a fiber bundle; 231. an end ring; 24. a liquid passing ring; 241. an outer ring gear; 242. a through hole; 25. a middle plate; 251. a switching part; 252. a slip joint hole; 26. a center shaft; 261. a spiral groove; 262. a vertical slot; 27. a tank body; 3. an alkali liquor adding pipe; 31. a vertical portion; 311. dispersing holes; 32. a horizontal portion; 4. a heat conduction block; 41. and a guide groove.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Example 1
Referring to fig. 1-3, a butadiene rubber alkaline washing neutralization device comprises a tank body assembly, wherein the tank body assembly comprises a main tank 1, a plurality of auxiliary tanks 2 are arranged around the main tank 1 at equal intervals, an alkali liquor adding pipe 3 and a liquid inlet pipe 15 for cold absorbing oil to enter are arranged at the top end of the main tank 1 in a penetrating manner, a bottom pipe 11 for glue gas to enter is arranged at the bottom end of the main tank 1 in a penetrating manner, a dispersing assembly 16 is arranged in the main tank 1, a liquid outlet pipe 14 is arranged at the bottom end of the main tank 1 in a penetrating manner, a liquid distribution ring 141 matched with the auxiliary tank 2 is arranged at the top end of the liquid outlet pipe 14 in a penetrating manner, the alkali liquor adding pipe 3 is connected with the liquid outlet pipe 14 in a conducting manner, and a contact assembly is arranged in the auxiliary tank 2; the dispersing assembly 16 comprises a plate body 161, the inner wall of the main tank 1 is assembled and connected with the outer edge of the plate body 161, the plate body 161 is provided with a circular array of slits 162, and the glue tank gas, alkali liquor and cold absorption oil are in vertical opposite-impact contact at the positions of the slits 162; the contact assembly comprises a plurality of guide rings 22, middle plates 25 are arranged in the middle of the guide rings 22, liquid passing rings 24 are embedded in the middle plates 25, fiber bundles 23 are installed between the liquid passing rings 24 in a penetrating mode, the length of each fiber bundle 23 is larger than the distance between two adjacent liquid passing rings 24, the fiber bundles 23 are extruded and dispersed to form a fusiform, and alkali liquid and cold absorption oil form a flowing liquid film between the fiber bundles 23 through liquid viscosity.
In the flash evaporation steam neutralization treatment of butadiene rubber, rubber tank gas enters the main tank 1 from the bottom pipe 11, flows from bottom to top, cold absorption oil is added from the position of the liquid inlet pipe 15, alkali liquid is added from the position of the alkali liquid adding pipe 3, the cold absorption oil and the alkali liquid flow from top to bottom after being mixed, and at the position of the dispersing component 16, the rubber tank gas, the alkali liquid and the cold absorption oil are in up-down opposite-flow contact at the position of the slit 162, because the slit is small in strip-shaped inner diameter, when gas and liquid meet, the contact between the slit and the gas is more frequent, acidic substances in the rubber tank gas are fully absorbed into the cold absorption oil, and in order to reduce the saturation of the acidic substances in the cold absorption oil, the mixed small alkali liquid can be subjected to neutralization reaction with the acidic substances, thereby effectively reducing the saturation of the acidic substances in the cold absorption oil, ensuring that the acidic substances in the rubber tank gas are fully neutralized, then the cold absorption oil wrapped with acidic substances enters the auxiliary tank 2, at the moment, the alkali liquor adding pipe 3 can supplement alkali liquor into the liquid outlet pipe 14, saturated alkali liquor can thoroughly neutralize the cold absorption oil in the auxiliary tank 2, because the liquid flows from top to bottom, the mixed liquor enters the fiber bundle 23 through the liquid passing ring 24, in order to avoid the reaction of the fiber bundle 23 and the acid-base solution, fluorine-containing fibers are used as the main component, aromatic heterocyclic fibers can be selected, wherein the most suitable variety can be selected from polytetrafluoroethylene fibers, in the flowing process, the alkali liquor and the cold absorption oil form flowing liquid films between the fiber bundles 23 due to the action of liquid viscosity, because the head and tail of the fiber bundles 23 and the middle position are fixed in the liquid passing ring 24, the length of the fiber bundles 23 is longer than the distance between the liquid passing rings 24, the fiber bundles 23 can be extruded and dispersed into a shuttle shape, a plurality of crisscrossed film-shaped liquids are provided, providing a large contact area makes the two sufficiently disperse contact with each other, and because the viscosity of the liquid decreases the flow rate of the liquid, the contact time between each other can be increased, and the acidic substances in the mixed liquid discharged from the liquid discharge pipe 21 can be sufficiently neutralized.
Example 2
Referring to fig. 3,5 and 6, a butadiene rubber alkali washing neutralization device comprises a tank body assembly, wherein the tank body assembly comprises a main tank 1, a plurality of auxiliary tanks 2 are arranged around the main tank 1 at equal intervals, an alkali liquor adding pipe 3 and a liquid inlet pipe 15 for cold absorbing oil to enter are installed at the top end of the main tank 1 in a penetrating mode, a bottom pipe 11 for glue tank gas to enter is installed at the bottom end of the main tank 1 in a penetrating mode, a dispersing assembly 16 is arranged in the main tank 1 in a penetrating mode, a liquid outlet pipe 14 is installed at the bottom end of the main tank 1 in a penetrating mode, a liquid distribution ring 141 matched with the auxiliary tank 2 is installed at the top end of the liquid outlet pipe 14 in a penetrating mode, the alkali liquor adding pipe 3 is connected with the liquid outlet pipe 14 in a conducting mode, and a contact assembly is arranged in the auxiliary tank 2.
Specifically, the outer side wall of the main tank 1 is embedded with a heat conducting block 4, and the heat conducting block 4 penetrates through the side wall of the auxiliary tank 2 to be in direct contact with the guide ring 22.
Furthermore, the top end of the main tank 1 is provided with an overflow pipe 12 in a penetrating way, a bypass pipe 13 is arranged between the overflow pipe 12 and the bottom pipe 11 in series, and an electromagnetic valve is arranged on the bypass pipe 13.
Still further, alkali lye adding pipe 3 includes vertical portion 31 and horizontal portion 32, and vertical portion 31 grafting sets up in drain pipe 14 upper portion space, and the dispersion hole 311 of range upon range of setting has been seted up on the inside lateral wall of vertical portion 31 in drain pipe 14, has established ties on the horizontal portion 32 and has been had the flow control valve, and horizontal portion 32 is connected with main tank 1 switch on.
In order to improve the absorption of cold absorption oil to acidic substances in glue tank gas, the temperature of the main tank 1 is transferred into a plurality of auxiliary tanks 2 through the heat conducting block 4, the temperature of the main tank 1 is reduced, the molecular activity of the acidic substances is reduced, the overflow of the acidic substances from the cold absorption oil due to higher temperature is prevented, the heat transferred to the auxiliary tanks 2 is also improved, the temperature of liquid in the auxiliary tanks 2 is improved, the relative movement of the liquid is enabled to be more active, the efficiency of neutralization reaction is further improved, in order to ensure that the air pressure in the main tank 1 is constant, after the glue tank gas is absorbed, the acid-base sensor is arranged at the tail end of the overflow pipe 12, when the acidity of the exhaust gas is detected to be greater than the emission standard, the electromagnetic valve is opened, part of the gas waiting to be exhausted is returned to the position of the bottom pipe 11 for secondary absorption, the reflux quantity is controlled by taking the exhaust gas meeting the emission standard as the lower limit, the exhaust gas meeting the requirement of the overflow pipe 12 is ensured, a small quantity of alkali lye is added into the main tank 1 for convenient addition into a system, the horizontal part 32 is controlled by the flow control valve, the addition quantity is prevented from being excessively diluted by the flow control valve, the alkali lye is also prevented from being excessively diluted by the dilution lye, and is excessively dispersed into the auxiliary lye 2 along with the exhaust gas, and the alkaline lye is prevented from being excessively dispersed into the auxiliary lye 2 in the vertical absorption tank 2 through the vertical exhaust part 31, and the alkaline lye 2 before the alkaline lye is dispersed into the vertical absorption tank 2 in the absorption tank 2 is dispersed in the absorption tank 2.
Example 3
Referring to fig. 1-4, a butadiene rubber alkali washing neutralization device comprises a tank body assembly, wherein the tank body assembly comprises a main tank 1, a dispersing assembly 16 is arranged in the main tank 1, the dispersing assembly 16 comprises a plate body 161, the inner wall of the main tank 1 is assembled and connected with the outer edge of the plate body 161, an annular array slit 162 is formed in the plate body 161, and rubber tank gas, alkali liquor and cold absorption oil are in vertical opposite-flushing contact at the position of the slit 162.
Specifically, the slit 162 adopts a rectangular structure, the slit 162 has two lengths, the long slit and the short slit are staggered, and the slit 162 is shorter and is arranged close to the outer edge of the plate body 161.
Notably, the plate 161 is provided with a protruding tube 163 at the top end of the slit 162, and a cap 164 with a downward opening is mounted at the top end of the protruding tube 163, and an exchange channel 165 is formed between the inner wall of the cap 164 and the outer wall of the protruding tube 163.
It should be noted that the dispersing units 16 are plural, the dispersing units 16 are vertically and equidistantly stacked, and an overhead baffle is disposed at one end of the bottom pipe 11 facing the dispersing units 16.
In order to ensure the passing efficiency of the gas-liquid opposite flushing, the slits 162 are designed to be long and short, the longer slits 162 are slightly smaller than the radius of the plate body 161, the annular array is arranged on the plate body 161, the distance between the slits 162 is larger at the position close to the outer edge of the plate body 161 due to the linear divergence effect, the short slits 162 are inserted between the longer slits 162, the passing area is increased, is improved in unit time, and in order to further improve the gas-liquid absorption effect of cold absorption oil on the glue tank, the top end of the slits 162 is provided with a convex tube 163, the top end opening position of the convex tube 163 is wrapped with a cap 164 with a downward opening, so that gas and liquid can flow through the plate body 161 after passing through the top end of the convex tube 163 and the bottom end of the cap 164, the bottom end of the cap 164 is lower than the top end of the convex tube 163, an annular exchange channel 165 is formed between the inner wall of the cap 164 and the outer wall of the convex tube 163, and the gas and the liquid are further intersected in the annular exchange channel 165, and a plurality of contact areas and contact time are further improved, and the absorption effect of cold absorption oil on acidic substances are arranged in a plurality of layers on the dispersing assembly 16 in order to ensure that the gas and liquid contact are thoroughly, the gas and liquid can flow can be mixed in the top end of the dispersing assembly, and the liquid flow can be prevented from entering the bottom of the baffle 11 directly and the liquid 11 directly, and the liquid can be mixed, and the liquid can be prevented from flowing into the bottom in the bottom through the top end of the top of the tube 11.
Example 4
Referring to fig. 3 and 5-9, the butadiene rubber alkali washing neutralization device comprises a tank body assembly, the tank body assembly comprises a main tank 1, a plurality of auxiliary tanks 2 are arranged around the main tank 1 at equal intervals, a contact assembly is arranged in the auxiliary tanks 2, the contact assembly comprises a plurality of guide rings 22, middle plates 25 are arranged in the middle of the guide rings 22, liquid passing rings 24 are embedded in the middle plates 25, fiber bundles 23 are installed between the liquid passing rings 24 in a penetrating mode, the length of the fiber bundles 23 is larger than the distance between two adjacent liquid passing rings 24, the fiber bundles 23 are extruded and dispersed to form a shuttle shape, and alkali liquor and cold absorption oil form a flowing liquid film between the fiber bundles 23 through liquid viscosity.
Specifically, a riser 221 is disposed in the middle of the guide ring 22, a guide groove 41 vertically sliding with the riser 221 is formed in the side wall of the heat conducting block 4, a ring sleeve 224 is disposed at one end of the riser 221, located at the center of the circle of the guide ring 22, a central shaft 26 is installed in the ring sleeve 224 in a penetrating manner, a sliding pin 222 is installed on the inner wall of the ring sleeve 224, and a spiral groove 261 sliding with the sliding pin 222 is formed in the outer wall of the central shaft 26.
Further, the middle plate 25 is rotatably connected with the guide ring 22, an embedded groove matched with the middle plate 25 is formed in the middle of the vertical plate 221, a sliding hole 252 is formed in the middle of the middle plate 25, and a vertical groove 262 vertically sliding with the sliding hole 252 is formed in the outer wall of the middle shaft 26.
Still further, the edge of the middle plate 25 is provided with a switching part 251, the middle part of the outer side of the liquid passing ring 24 is provided with an outer gear ring 241, the inner wall of the guide ring 22 is provided with a tooth slot 223 meshed with the outer gear ring 241, the edge of the liquid passing ring 24 is provided with a through hole 242 for the fiber bundle 23 to penetrate and be installed, and the fiber bundle 23 is sleeved with an end ring 231 at the through hole 242.
In order to adjust the degree of extrusion dispersion of the fiber bundles 23, the bottom end of the center shaft 26 extends to the outer side of the lower part of the auxiliary tank 2 and can be driven to rotate, the spiral groove 261 on the center shaft 26 is symmetrically arranged by taking the center of the center shaft 26 as a midpoint, so that when the center shaft 26 rotates, the upper and lower spiral grooves 261 can extrude the sliding pin 222 to respectively drive the upper and lower guide rings 22 to close to the guide rings 22 fixed in the middle, at the moment, the fiber bundles 23 can be further bent and dispersed around due to extrusion of the two ends, further the mutual clearance of the fiber bundles 23 can be adjusted, a large amount of liquid film can be prevented from being formed due to excessively small or excessively large, in order to perform self-cleaning of the fiber bundles 23, neutralized salt can be precipitated in the neutralization reaction and is attached to the surface of the fiber bundles 23, the liquid viscosity between the surface and alkali lye is lost due to the prevention of excessively attaching the neutralized salt of the fiber bundles 23, when the middle shaft 26 drives the guide ring 22 to move up and down, the middle shaft 26 drives the middle plate 25 to rotate relative to the guide ring 22 through the cooperation of the sliding connection holes 252 and the vertical grooves 262, so that fiber bundles 23 between different liquid passing rings 24 are mutually wound and rubbed to perform self-cleaning, in order to further improve the self-cleaning efficiency, an outer gear ring 241 is arranged on the outer side of the liquid passing ring 24, when the middle plate 25 rotates relative to the guide ring 22, the liquid passing rings 24 can rotate under the meshing cooperation of tooth grooves 223 and the outer gear ring 241, so that a plurality of groups of fiber bundles 23 on the same liquid passing ring 24 are mutually twisted and wound, the fiber bundles 23 can be sufficiently rubbed and twisted to improve the self-cleaning effect, and the fiber bundles 23 after being used for many times can be detached from the bottom end of the auxiliary tank 2 and pulled out from the through holes 242 through the detaching end ring 231 to be replaced, so that the subsequent maintenance is facilitated.
In addition, the power supply module, the circuit, the electronic components and the control module are all in the prior art, and can be completely realized by a person skilled in the art, so that the protection of the invention does not relate to improvement of the internal structure and the method.
The present invention is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present invention and the inventive concept thereof, can be replaced or changed within the scope of the present invention.
Claims (6)
1. An alkali washing and neutralizing device for butadiene rubber comprises a tank body assembly and is characterized in that,
the tank body assembly comprises a main tank (1), a plurality of auxiliary tanks (2) are arranged around the main tank (1) at equal intervals, an alkali liquor adding pipe (3) and a liquid inlet pipe (15) for cold absorption oil to enter are installed at the top end of the main tank (1) in a penetrating mode, a bottom pipe (11) for glue tank gas to enter is installed at the bottom end of the main tank (1) in a penetrating mode, a dispersing assembly (16) is arranged in the main tank (1), a liquid outlet pipe (14) is arranged at the bottom end of the main tank (1) in a penetrating mode, a liquid distributing ring (141) matched with the auxiliary tank (2) is installed at the top end of the liquid outlet pipe (14), the alkali liquor adding pipe (3) is connected with the liquid outlet pipe (14) in a conducting mode, a contact assembly is arranged in the auxiliary tank (2), and a liquid outlet pipe (21) is arranged at the bottom end of the auxiliary tank (2).
The dispersing assembly (16) comprises a plate body (161), the inner wall of the main tank (1) is assembled and connected with the outer edge of the plate body (161), the plate body (161) is provided with a slit (162) in an annular array, and the glue tank gas, alkali liquor and cold absorption oil are in up-down opposite-flushing contact at the position of the slit (162);
the contact assembly comprises a plurality of guide rings (22), wherein middle plates (25) are arranged in the middle of the guide rings (22), liquid passing rings (24) are embedded in the middle plates (25), fiber bundles (23) are arranged between the liquid passing rings (24) in a penetrating mode, the length of each fiber bundle (23) is larger than the distance between two adjacent liquid passing rings (24), the fiber bundles (23) are extruded and dispersed to form a shuttle shape, and alkali liquid and cold absorption oil form a flowing liquid film between the fiber bundles (23) through liquid viscosity;
the heat conducting block (4) is embedded and arranged on the outer side wall of the main tank (1), and the heat conducting block (4) penetrates through the side wall of the auxiliary tank (2) to be in direct contact with the guide ring (22);
the guide ring (22) is provided with three guide rings, a vertical plate (221) is arranged in the middle of the guide ring (22), a guide groove (41) vertically connected with the vertical plate (221) in a sliding mode is formed in the side wall of the heat conducting block (4), a ring sleeve (224) is arranged at one end of the vertical plate (221) located at the center of the circle of the guide ring (22), a center shaft (26) is installed in the ring sleeve (224) in a penetrating mode, sliding pins (222) are respectively installed on the inner walls of the two ring sleeves (224) located on the upper side and the lower side, and a spiral groove (261) connected with the sliding pins (222) in a sliding mode is formed in the outer wall of the center shaft (26);
the middle plate (25) is rotationally connected with the guide ring (22), a sliding hole (252) is formed in the middle of the middle plate (25), and a vertical groove (262) vertically sliding with the sliding hole (252) is formed in the outer wall of the middle shaft (26);
an outer gear ring (241) is arranged in the middle of the outer side of the liquid passing ring (24), tooth grooves (223) meshed with the outer gear ring (241) are formed in the inner wall of the guide ring (22), and an end ring (231) is sleeved between the liquid passing ring (24) and the end part of the fiber bundle (23).
2. The butadiene rubber alkaline washing neutralization device according to claim 1, wherein an overflow pipe (12) is installed at the top end of the main tank (1) in a penetrating mode, a bypass pipe (13) is installed between the overflow pipe (12) and the bottom pipe (11) in series, and an electromagnetic valve is arranged on the bypass pipe (13).
3. The butadiene rubber alkaline washing neutralization device according to claim 2, characterized in that the alkaline liquid adding pipe (3) comprises a vertical portion (31) and a horizontal portion (32), the vertical portion (31) is inserted and arranged in the upper space of the liquid outlet pipe (14), the side wall of the vertical portion (31) positioned in the liquid outlet pipe (14) is provided with a dispersing hole (311) which is arranged in a stacked mode, the horizontal portion (32) is connected with a flow control valve in series, and the horizontal portion (32) is connected with the main tank (1) in a conducting mode.
4. The butadiene rubber alkaline washing neutralization device according to claim 1, wherein the slit (162) adopts a rectangular structure, the slit (162) has two lengths, the long slit and the short slit are arranged in a staggered mode, and the slit (162) is shorter and is arranged close to the outer edge of the plate body (161).
5. The butadiene rubber alkaline washing neutralization device according to claim 4, wherein a protruding tube (163) is arranged at the top end of the slit (162) of the plate body (161), a cap (164) with a downward opening is arranged at the top end of the protruding tube (163), and an exchange channel (165) is formed between the inner wall of the cap (164) and the outer wall of the protruding tube (163).
6. The butadiene rubber alkaline washing neutralization device according to claim 5, wherein a plurality of dispersing assemblies (16) are arranged, the dispersing assemblies (16) are arranged in an up-down equidistant lamination mode, and an overhead baffle is arranged at one end, facing the dispersing assemblies (16), of the bottom pipe (11).
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