CN114768730A - A mixing device that is used for gas phase method oxo process dimethyl carbonate - Google Patents
A mixing device that is used for gas phase method oxo process dimethyl carbonate Download PDFInfo
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- CN114768730A CN114768730A CN202210490536.0A CN202210490536A CN114768730A CN 114768730 A CN114768730 A CN 114768730A CN 202210490536 A CN202210490536 A CN 202210490536A CN 114768730 A CN114768730 A CN 114768730A
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- dimethyl carbonate
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- barrel
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- 238000002156 mixing Methods 0.000 title claims abstract description 55
- IEJIGPNLZYLLBP-UHFFFAOYSA-N dimethyl carbonate Chemical compound COC(=O)OC IEJIGPNLZYLLBP-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008569 process Effects 0.000 title description 6
- 239000000463 material Substances 0.000 claims abstract description 71
- 238000003756 stirring Methods 0.000 claims abstract description 51
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 25
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 22
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims abstract description 9
- 239000012808 vapor phase Substances 0.000 claims description 15
- 239000012071 phase Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 10
- 241000219112 Cucumis Species 0.000 claims description 9
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 claims description 9
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 claims description 9
- 230000002194 synthesizing effect Effects 0.000 claims description 8
- 239000002994 raw material Substances 0.000 abstract description 18
- 230000008859 change Effects 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 9
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 230000007246 mechanism Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 12
- 239000007789 gas Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000006315 carbonylation Effects 0.000 description 2
- 238000005810 carbonylation reaction Methods 0.000 description 2
- 239000013064 chemical raw material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- BLLFVUPNHCTMSV-UHFFFAOYSA-N methyl nitrite Chemical compound CON=O BLLFVUPNHCTMSV-UHFFFAOYSA-N 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000005832 oxidative carbonylation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
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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
- B01J19/18—Stationary reactors having moving elements inside
-
- 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
- B01J19/0053—Details of the reactor
-
- 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
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/96—Esters of carbonic or haloformic acids
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to the technical field of chemical synthesis, in particular to a mixing device for carbonyl synthesis of dimethyl carbonate by a gas phase method, aiming at the problem that the contact area with materials cannot be fundamentally changed by changing the mixing efficiency at present, the invention provides the following scheme. When the raw materials related to the synthesis of the dimethyl carbonate are mixed, the raw materials are slowly added from the top end of the feeding pipe, then the raw materials can be uniformly dispersed to all positions of the bottom of the barrel under the action of the rotary material distribution device, then the materials in the barrel are uniformly mixed under the action of the stirring rod and the extending expansion plate, the extending length of the expansion plate can be adjusted by controlling the rotating speed, and further the contact blocking area is changed to change the uniformly mixing speed.
Description
Technical Field
The invention relates to the technical field of chemical synthesis, in particular to a mixing device for synthesizing dimethyl carbonate by a gas-phase method carbonyl.
Background
The molecular formula of the dimethyl carbonate is C3H6O3, and the structural formula is (CH3O)2 CO. In view of the low toxicity of DMC, DMC has been listed as one of nontoxic chemicals in European countries in 1992, is called "green basic chemical raw material", is listed as nontoxic solvent by multiple international organizations, and is an environment-friendly organic chemical raw material which meets the requirements of modern "cleaning process".
At present, the main synthetic routes for synthesizing dimethyl carbonate are as follows: phosgene routes, carbon monoxide routes, carbon dioxide routes, urea routes, and the like. The carbon monoxide route is divided into methanol liquid phase oxidation and carbonylation, methanol gas phase oxidation and carbonylation and nitrite method. Wherein the reaction condition of the nitrite method is mild, the problem of separation of methanol and DMC (methanol-water-DMC azeotrope) is avoided, and the energy consumption is greatly reduced. The method is carried out in two steps, the reaction principle is that methyl nitrite is generated from NO, oxygen and methanol as an intermediate medium in the first step, and dimethyl carbonate is synthesized through the oxidative carbonylation of gas-phase methyl nitrite in the second step.
Wherein need carry out the mixing to a great deal of various raw materialss, traditional mixing device just changes stirring speed tastefully when changing mixing efficiency, and inside stirring vane's area of contact still is unchangeable, and is very little to the change effect of stirring efficiency, consequently just needs one kind can change area of contact according to the change of stirring speed to reach the target that improves mixing efficiency.
Disclosure of Invention
The invention provides a mixing device for carbonyl synthesis of dimethyl carbonate by a gas phase method, aiming at overcoming the problem that the contact area between the mixing device and materials cannot be changed fundamentally by changing the mixing efficiency at present.
In order to achieve the purpose, the invention adopts the following technical scheme: a mixing device for synthesizing dimethyl carbonate by gas phase carbonyl comprises a barrel body with an upward opening and an integral cylindrical structure, wherein the circumferential inner wall of the barrel body is provided with a plurality of anti-slip clamping grooves distributed at equal intervals at the top end, the anti-slip clamping grooves are connected with a driving box cover which is internally provided with a hole cavity and has a disc-shaped structure in a clamping manner, the middle parts of the upper surface and the lower surface of the driving box cover are respectively embedded with conical roller bearings which are symmetrical to each other, a same feeding pipe is rotatably connected between the two conical roller bearings, the outer wall of the feeding pipe is provided with a stirring mechanism below the driving box cover, the stirring mechanism comprises six prism frames which are sleeved on the outer wall of the feeding pipe and are close to the upper end and the lower end, six stirring rods which are distributed in central symmetry are fixed between the outer walls of the two prism frames, a telescopic plate which can extend out in a sliding manner is arranged in the middle of the stirring rods, and a material distributing device is fixed at the bottom end of the feeding pipe, thereby can be when the relevant raw materials to synthetic dimethyl carbonate mix, only need slowly add from the top of material loading pipe with the raw materials earlier, later can disperse the raw materials to barrel bottom each position evenly under rotatory feed divider's effect, later carry out the mixing to the material of inside under the effect of the expansion plate of puddler and extension again, can adjust the extension length of expansion plate through the control rotational speed, and then change the contact and block the area and change the mixing speed.
As a preferable scheme in the invention, a control panel is embedded at the top of the driving box cover close to the edge, a driving motor is fixed at the inner wall of the bottom of the driving box cover close to the edge, and the control end of the driving motor is connected with the signal output end of the control panel through a signal line, so that the control of the rotating speed of the driving motor and the fast switching of the positive and negative working states can be realized through the operation of the control panel when the driving box cover is used, and the controllability of the device is improved.
As the preferable scheme in the invention, the conical trough is fixed at the top end of the feeding pipe, and the flaring of the conical trough is upward, so that the feeding convenience of the device is improved, and the possibility of leakage is reduced.
As a preferable scheme in the invention, a driven gear is fixed on the circumferential outer wall of the feeding pipe close to the top end, a driving gear meshed with the driven gear is fixed on the top end of an output shaft of the driving motor, the diameter of the driving gear is equal to one fourth of that of the driven gear, so that the feeding pipe can be driven, and weak vibration can be generated during the meshing of the gears during rotation, thereby playing a role in assisting blanking.
As a preferable scheme in the invention, the whole stirring rod is in an arc shape, a guide guard plate is fixed at one side of the top of the arc of the stirring rod, which is close to the feeding pipe, a jack II is arranged at the outlet of the arch of the stirring rod, a penetrating jack I is arranged at the side surface of the guide guard plate, the jack I and the jack II are mutually communicated and are smoothly connected, limiting grooves are respectively arranged on the inner walls of two opposite sides of the telescopic plate, which are provided with the jack I of the guide block and the jack II, a limiting column is fixed at one end of each limiting groove, which is far away from the feeding pipe, the telescopic plate is connected in the jack I and the jack II in a sliding manner, a tension spring is fixed at one end of the telescopic plate, which is close to the feeding pipe, and a middle frame is fixed at one end of the tension spring, which is far away from the telescopic plate, so that when the whole stirring mechanism is driven to rotate in use, the extending lengths of the telescopic plate are different rotating speeds are also different, the head of the expansion plate is completely contracted in the second jack and the first jack at normal rotating speed, and the expansion plate can be thrown out when the rotating speed is increased when the stirring needs to be accelerated.
As a preferable scheme in the invention, plugs are reserved on one sides of the upper end and the lower end of the stirring rod close to the hexagonal prism frame, and positioning grooves matched with the plugs are formed in the surface of the hexagonal prism frame, so that the plugs at the end parts of the stirring rod can be fixed in the positioning grooves in the side surfaces of the hexagonal prism frame only by inserting the plugs in the side surfaces of the hexagonal prism frame, and the stirring rod is convenient to disassemble and assemble.
As a preferable scheme in the invention, the material distributing device comprises a hexagonal barrel fixed at the bottom end of the feeding pipe, the hexagonal barrel is of a hexagonal barrel structure with a downward opening, a connecting hole matched with the inner diameter of the feeding pipe is formed in the middle of the top end of the hexagonal barrel, three centrosymmetric material distributing plates are arranged on the vertical outer wall of the hexagonal barrel, a single material distributing plate is arranged in an inclined manner, three centrosymmetric material discharging notches are formed in the side surface of the hexagonal barrel, and a material distributing cone is fixed in the middle of the bottom of the barrel body, so that materials can be scattered or even thrown upwards under the action of the obliquely arranged material distributing plates when falling at high speed and can be ejected to the periphery in the blanking process, and the material mixing effect is improved.
As a preferable scheme in the invention, two studs which are parallel to each other are fixed at one end of the material separating plate close to the hexagonal barrel, two strip-shaped holes which are parallel to the plane where the inclined surface of the material separating plate is located are formed in the side surface of the hexagonal barrel, the studs penetrate through the strip-shaped holes and are respectively sleeved with a self-locking nut, the downward sliding space of the material separating plate can be finely adjusted through the arrangement of the strip-shaped holes, and then the bottom end of the material separating plate can be attached to the inner wall of the bottom of the barrel body for material mixing.
As a preferable scheme in the invention, the outer wall of the feeding pipe is fixed with two arc-shaped rods which are distributed in a central symmetry manner, the two melon skin stirring plates which are distributed in a central symmetry manner are respectively fixed on the opposite sides of the two arc-shaped rods, and the inner edges of the melon skin stirring plates are chamfered with round corners, so that the cross sections of the arc-shaped rods are in full contact with a stirred object in forward transmission when the stirring mechanism rotates, and the arc-shaped rods and the melon skin stirring plates are arranged in a streamline shape when the stirring mechanism rotates reversely, so that the resistance can be reduced, and the stirring amplitude is reduced at the moment.
As a preferable scheme in the invention, the inner parts of the two arc-shaped rods are both reserved with the hidden grooves, the opposite sides of the two arc-shaped rods are both provided with the round holes distributed at equal intervals, the inner sides of the arc-shaped rods are provided with the sliding grooves distributed at equal intervals, and the sliding grooves are both connected with the extension blocks in a sliding manner, so that when the inner medium is liquid in use, substances are filled into the round holes when the two arc-shaped rods rotate clockwise, all the extension blocks can be ejected, the contact area with the inner medium is increased, and the uniform mixing effect is improved.
To sum up, the beneficial effect in this scheme is:
1. according to the mixing device for synthesizing the dimethyl carbonate by the gas-phase carbonyl method, the stirring rod which can extend through the expansion plate is arranged, when related raw materials for synthesizing the dimethyl carbonate need to be mixed, the raw materials only need to be slowly added from the top end of the feeding pipe, then the raw materials can be uniformly dispersed to all positions of the barrel bottom under the action of the rotary material distribution device, then the materials in the barrel bottom are uniformly mixed under the action of the stirring rod and the extension plate, the extension length of the expansion plate can be adjusted by controlling the rotating speed, and further the contact blocking area is changed to change the mixing speed;
2. the mixing device for synthesizing the dimethyl carbonate by the gas-phase carbonyl method has the advantages that the driving motor controlled by the control panel is arranged, when the mixing device is used, the control of the rotating speed of the driving motor and the quick switching of the positive and negative working states can be realized through the operation of the control panel, and the controllability of the mixing device is improved.
3. This kind of mixing device for vapor phase method oxo synthesis dimethyl carbonate establishes the arc pole of dark groove in setting up, can drive whole rabbling mechanism when rotating when the material loading pipe when using, and the length that the expansion plate stretches out is also different under the different rotational speeds, and the head of expansion plate is the complete shrinkage in jack two and jack one under normal rotational speed, when needs accelerate the stirring, and the expansion plate can be thrown out when increasing the rotational speed.
Drawings
FIG. 1 is a schematic sectional structure diagram of a blending device for vapor phase oxo synthesis of dimethyl carbonate according to the present invention;
fig. 2 is a schematic perspective structure diagram of a stirring mechanism in a mixing device for vapor-phase oxo synthesis of dimethyl carbonate according to the present invention;
FIG. 3 is a schematic perspective view of a material distributing device of a blending device for vapor-phase oxo synthesis of dimethyl carbonate according to the present invention;
FIG. 4 is a schematic structural diagram of the assembly of a material distributing device of a blending device for the vapor phase oxo synthesis of dimethyl carbonate according to the invention;
FIG. 5 is a schematic view of an assembly structure of a stirring rod in a mixing device for vapor-phase oxo synthesis of dimethyl carbonate according to the present invention;
fig. 6 is a schematic perspective view of a stirring mechanism in a mixing device for vapor-phase oxo synthesis of dimethyl carbonate according to the second embodiment of the present invention;
fig. 7 is a schematic view of an assembly structure of a stirring mechanism in a blending device for vapor phase oxo synthesis of dimethyl carbonate according to the second embodiment of the present invention;
fig. 8 is a schematic view of a partial cross-sectional structure of an arc-shaped rod in a mixing device for vapor-phase oxo synthesis of dimethyl carbonate according to the second embodiment of the present invention.
In the figure: 1. a barrel body; 2. a limiting groove; 3. a retractable plate; 4. a tension spring; 5. a stirring rod; 6. a material distributing plate; 7. a hexagonal barrel; 8. a material separating cone; 9. a discharge gap; 10. feeding pipes; 11. a driving box cover; 12. an anti-slip clamping groove; 13. a control panel; 14. a driven gear; 15. a conical trough; 16. a tapered roller bearing; 17. a driving gear; 18. a drive motor; 19. a stirring mechanism; 20. a material distributing device; 21. a guide guard plate; 22. a hexagonal prism frame; 23. a middle frame; 24. connecting holes; 25. a strip-shaped hole; 26. a self-locking nut; 27. a stud; 28. a guide block; 29. positioning a groove; 30. a guide groove; 31. a first jack; 32. a second jack; 33. a limiting column; 34. an arc-shaped rod; 35. peeling the melon peels; 36. round corners; 37. a circular hole; 38. a hidden groove; 39. a sliding groove; 40. an extension block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1-5, a mixing device for gas phase carbonyl synthesis of dimethyl carbonate comprises a barrel body 1 with an upward opening and an overall cylindrical structure, wherein a plurality of anti-slip clamping grooves 12 distributed at equal intervals are arranged on the top end of the circumferential inner wall of the barrel body 1, a driving box cover 11 with a disc-shaped structure and a cavity therein is clamped in the anti-slip clamping grooves 12, tapered roller bearings 16 which are symmetrical to each other are respectively embedded in the middle of the upper surface and the lower surface of the driving box cover 11, a feeding pipe 10 is rotatably connected between the two tapered roller bearings 16, a stirring mechanism 19 is arranged on the outer wall of the feeding pipe 10 below the driving box cover 11, the stirring mechanism 19 comprises six prismatic frames 22 which are sleeved on the outer wall of the feeding pipe 10 and are close to the upper end and the lower end, six stirring rods 5 which are distributed in central symmetry are fixed between the outer walls of the two prismatic frames 22, a telescopic plate 3 which can extend out in a sliding way is arranged in the middle of the stirring rods 5, and the bottom of material loading pipe 10 is fixed with feed divider 20 to can be when needs mix the relevant raw materials of synthetic dimethyl carbonate, only need slowly add from the top of material loading pipe 10 with the raw materials earlier, later can disperse the raw materials to barrel head each position uniformly under rotatory feed divider's effect, later mix the material of inside under the effect of puddler 5 and the expansion plate 3 that extends out again, can adjust the extension length of expansion plate 3 through controlling the rotational speed, and then change the contact and block the area and change the mixing speed.
Wherein, the top of driving case lid 11 is close to the edge and inlays and is equipped with control panel 13, and the bottom inner wall of driving case lid 11 is close to the edge and is fixed with driving motor 18, and driving motor 18's control end passes through the signal line and links to each other with control panel 13's signal output part to can realize carrying out fast switch over driving motor 18 rotational speed's control and positive and negative form operating condition through control panel 13's operation when using, improve the controllability of device.
Wherein, the top of material loading pipe 10 is fixed with toper silo 15, and the flaring of toper silo 15 up, has improved the convenience of device material loading, has reduced the possibility of spilling hourglass.
Wherein, the circumference outer wall of material loading pipe 10 is close to the top and is fixed with driven gear 14, and the output shaft top of driving motor 18 is fixed with the driving gear 17 with driven gear 14 intermeshing, and the diameter of driving gear 17 equals one fourth of driven gear 14, not only can realize the drive to material loading pipe 10, can produce weak vibrations in the gear engagement period in the pivoted moreover, and then played the effect of supplementary unloading.
Wherein, the whole of the stirring rod 5 is designed into a bow shape, one side of the top of the stirring rod 5 close to the feeding pipe 10 is fixed with a guide guard plate 21, the outlet of the top of the stirring rod 5 is provided with a jack II 32, the side surface of the guide guard plate 21 is provided with a through jack I31, the jack I31 is communicated with the jack II 32, the inner walls of the two opposite sides of the telescopic plate 3 are respectively provided with a guide block 28, the inner walls of the two opposite sides of the jack I31 and the jack II 32 are respectively provided with a limit groove 2, one end of the limit groove 2 far away from the feeding pipe 10 is fixed with a limit post 33, the telescopic plate 3 is connected in the jack I31 and the jack II 32 in a sliding way, one end of the telescopic plate 3 close to the feeding pipe 10 is fixed with a tension spring 4, and one end of the tension spring 4 far away from the telescopic plate 3 is fixed with a middle frame 23, thereby when the feeding pipe 10 drives the whole stirring mechanism 19 to rotate, the extension lengths of the expansion plates 3 are different at different rotating speeds, the heads of the expansion plates 3 are completely retracted into the second insertion holes 32 and the first insertion holes 31 at normal rotating speeds, and the expansion plates 3 can be thrown out when the rotating speed is increased when stirring needs to be accelerated.
Wherein, the plug is reserved on one side of the upper and lower both ends of puddler 5 near hexagonal prism frame 22, and the constant head tank 29 with plug looks adaptation is opened on the surface of hexagonal prism frame 22 to can be when the installation, only need with the plug grafting of puddler 5 tip in the constant head tank 29 of hexagonal prism frame 22 side fixed can, easy dismounting.
The material distributing device 20 comprises a hexagonal barrel 7 fixed at the bottom end of a feeding pipe 10, the hexagonal barrel 7 is of a hexagonal barrel structure with a downward opening, a connecting hole matched with the inner diameter of the feeding pipe 10 is formed in the middle of the top end of the hexagonal barrel 7, three centrosymmetric material distributing plates 6 are arranged on the vertical outer wall of the hexagonal barrel 7, each material distributing plate 6 is arranged in an inclined mode, three discharging notches 9 which are centrosymmetric and distributed are formed in the side face of the hexagonal barrel 7, a material distributing cone 8 is fixed in the middle of the bottom of the barrel body 1, so that in the discharging process, materials can be scattered or even thrown upwards obliquely under the action of the material distributing plates 6 which are arranged in an inclined mode when falling down at high speed and can be ejected to the periphery, discharging is performed from the discharging notches 9 arranged on the side face of the materials, and the material mixing effect is improved.
Wherein, the one end that divides flitch 6 to be close to hexagonal bucket 7 is fixed with two double-screw bolts 27 that are parallel to each other, and the side of hexagonal bucket 7 is opened has two bar holes 25 parallel with 6 inclined plane place planes of branch flitch, and the double-screw bolt 27 passes bar hole 25 and has cup jointed self-locking nut 26 respectively, can finely tune the gliding space of dividing flitch 6 through setting up of bar hole 25, and then lets the bottom inner wall that divides flitch 6 can paste staving 1 carry out the compounding.
The working principle is as follows: when the relevant raw materials for synthesizing dimethyl carbonate need to be mixed, the raw materials are slowly added from the top end of the feeding pipe 10, then the raw materials can be uniformly dispersed to all positions of the bottom of the barrel under the action of the rotary material distribution device, then the materials inside the barrel are uniformly mixed under the action of the stirring rod 5 and the extending expansion plate 3, the extending length of the expansion plate 3 can be adjusted by controlling the rotating speed, and then the contact blocking area is changed to change the uniformly mixing speed.
Example 2
Referring to fig. 6-8, a mixing device for vapor phase oxo synthesis of dimethyl carbonate, in this embodiment, compared to embodiment 1, the mixing device further includes a barrel 1 having an upward opening and an overall cylindrical structure, a plurality of anti-slip slots 12 are formed at the top end of the circumferential inner wall of the barrel 1, the anti-slip slots 12 are connected to a same driving box cover 11 having a disk-shaped structure with a hole therein, tapered roller bearings 16 are embedded in the middle of the upper and lower surfaces of the driving box cover 11, the same feeding tube 10 is rotatably connected between the two tapered roller bearings 16, a stirring mechanism 19 is disposed on the outer wall of the feeding tube 10 below the driving box cover 11, the stirring mechanism 19 includes six prismatic frames 22 sleeved on the outer wall of the feeding tube 10 near the upper and lower ends, and six stirring rods 5 are fixed between the outer walls of the two prismatic frames 22 and are distributed centrally and symmetrically, the centre of puddler 5 is provided with the expansion plate 3 that can slide and stretch out, and the bottom mounting of material loading pipe 10 has feed arrangement 20, thereby can be when needs mix the relevant raw materials of synthetic dimethyl carbonate, only need slowly add the raw materials from the top of material loading pipe 10 earlier, later can disperse the raw materials to each position at the bottom of the bucket uniformly under rotatory feed arrangement's effect, later again carry out the mixing to the material of inside under the effect of the expansion plate 3 of puddler 5 and extension, the extension length of expansion plate 3 can be adjusted through the control rotational speed, and then the change contact blocks the area and changes the mixing speed.
Wherein, the top of driving case lid 11 is close to the edge and inlays and is equipped with control panel 13, and the bottom inner wall of driving case lid 11 is close to the edge and is fixed with driving motor 18, and driving motor 18's control end passes through the signal line and links to each other with control panel 13's signal output part to can realize carrying out fast switch over driving motor 18 rotational speed's control and positive and negative form operating condition through control panel 13's operation when using, improve the controllability of device.
Wherein, the top of material loading pipe 10 is fixed with toper silo 15, and the flaring of toper silo 15 up, has improved the convenience of device material loading, has reduced the possibility of spilling hourglass.
Wherein, the circumference outer wall of material loading pipe 10 is close to the top and is fixed with driven gear 14, and the output shaft top of driving motor 18 is fixed with the driving gear 17 with driven gear 14 intermeshing, and the diameter of driving gear 17 equals the quarter of driven gear 14, not only can realize the drive to material loading pipe 10, can produce weak vibrations in the time of gear engagement in the pivoted moreover, and then has played the effect of supplementary unloading.
The material distributing device 20 comprises a hexagonal barrel 7 fixed at the bottom end of a feeding pipe 10, the hexagonal barrel 7 is of a hexagonal barrel structure with a downward opening, a connecting hole matched with the inner diameter of the feeding pipe 10 is formed in the middle of the top end of the hexagonal barrel 7, three material distributing plates 6 in central symmetry are arranged on the vertical outer wall of the hexagonal barrel 7, a single material distributing plate 6 is arranged in an inclined mode, three discharging notches 9 in central symmetry distribution are formed in the side face of the hexagonal barrel 7, a material distributing cone 8 is fixed in the middle of the bottom of the barrel body 1, therefore, in the discharging process, materials can be scattered or even thrown upwards in an inclined mode under the action of the material distributing plates 6 arranged in an inclined mode when falling at high speed on the material distributing cone 8 right below, discharging is carried out from the discharging notches 9 arranged on the side face of the material, and then the materials can be scattered or thrown upwards in an inclined mode, and the material mixing effect is improved.
The outer wall of material loading pipe 10 is fixed with two arc poles 34 that are central symmetric distribution, and two arc poles 34 one side that carry on the back mutually is fixed with the melon skin that is central symmetric distribution of each other respectively and dials board 35, the interior edge department that the board 35 was dialled to the melon skin has fillet 36, thereby can be in the 19 rotations of rabbling mechanism, the full contact of cross-section of arc pole 34 is stirred the object in the time of just passing, in the reverse rotation, have and dial board 35 one side with the melon skin and set up streamline shape, can reduce the resistance, the scope of stirring has been reduced this moment.
Wherein, the inside of two arc poles 34 all reserves dark groove 38, and two arc poles 34 one side that carries on the back mutually all opens the round hole 37 that the equidistance distributes, the inboard of arc pole 34 is opened the sliding tray 39 that has the equidistance and distributes, and equal sliding connection has extension piece 40 in the sliding tray 39, thereby can be when inside medium is liquid when using, it can be ejecting with all extension pieces 40 to pour into the material in the round hole 37 when two arc poles 34 clockwise rotation this moment, the increase is with the area of contact of inside medium this moment, improve the mixing effect.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. A blending device for synthesizing dimethyl carbonate by gas phase method carbonyl comprises a barrel body (1) with an upward opening and a cylindrical structure as a whole, wherein the circumferential inner wall of the barrel body (1) is positioned at the top end and provided with a plurality of anti-slip clamping grooves (12) distributed at equal intervals, the anti-slip clamping grooves (12) are internally clamped with a driving box cover (11) which is internally provided with a hole cavity and has a disc-shaped structure, the middle parts of the upper surface and the lower surface of the driving box cover (11) are respectively embedded with conical roller bearings (16) which are symmetrical to each other, and a same feeding pipe (10) is rotatably connected between the two conical roller bearings (16), the blending device is characterized in that six blending rods (5) which are symmetrically distributed in the center are fixed between the outer walls of the two six prismatic frames (22) and are sleeved on the outer wall of the feeding pipe (10) and close to the upper end and the lower end, the middle of the stirring rod (5) is provided with a telescopic plate (3) which can extend out in a sliding way, and the bottom end of the feeding pipe (10) is fixed with a material distributing device (20).
2. The blending device for the gas-phase oxo-synthesis of dimethyl carbonate according to claim 1, wherein a control panel (13) is embedded at the top of the driving box cover (11) near the edge, a driving motor (18) is fixed at the inner wall of the bottom of the driving box cover (11) near the edge, and the control end of the driving motor (18) is connected with the signal output end of the control panel (13) through a signal line.
3. The blending device for the gas-phase oxo synthesis of dimethyl carbonate according to claim 2, wherein the top end of the feeding pipe (10) is fixed with a conical trough (15), and the flaring of the conical trough (15) is upward.
4. The blending device for the vapor phase oxo synthesis of dimethyl carbonate according to claim 3, wherein the driven gear (14) is fixed on the circumferential outer wall of the feeding pipe (10) near the top end, a driving gear (17) meshed with the driven gear (14) is fixed on the top end of the output shaft of the driving motor (18), and the diameter of the driving gear (17) is equal to one fourth of the driven gear (14).
5. The mixing device for the vapor-phase oxo synthesis of dimethyl carbonate according to claim 1, wherein the whole of the stirring rod (5) is arched, a guide guard plate (21) is fixed at one side of the arch top of the stirring rod (5) close to the feeding pipe (10), a jack II (32) is arranged at the arch top of the stirring rod (5), a through jack I (31) is arranged at the side of the guide guard plate (21), the jack I (31) and the jack II (32) are communicated with each other and the inner walls are smoothly connected, guide blocks (28) are reserved at two sides of the expansion plate (3), guide grooves (30) matched with the guide blocks (28) are arranged on the inner walls at two opposite sides of the jack I (31) and the jack II (32), and limit grooves (2) are arranged on the inner walls at two opposite sides of the jack I (31) and the jack II (32), and the end of the limiting groove (2) far away from the feeding pipe (10) is fixed with a limiting column (33), the expansion plate (3) is connected in the first jack (31) and the second jack (32) in a sliding mode, one end, close to the feeding pipe (10), of the expansion plate (3) is fixed with a tension spring (4), and the end, far away from the expansion plate (3), of the tension spring (4) is fixed with the same middle frame (23).
6. The blending device for the vapor-phase oxo synthesis of dimethyl carbonate according to claim 5, wherein plugs are reserved on the upper and lower ends of the stirring rod (5) on the sides close to the hexagonal prism frame (22), and positioning grooves (29) matched with the plugs are formed in the surface of the hexagonal prism frame (22).
7. The blending device for the carbonyl synthesis of dimethyl carbonate by the gas phase method according to claim 1, wherein the material separating device (20) comprises a hexagonal barrel (7) fixed at the bottom end of the feeding pipe (10), the hexagonal barrel (7) is of a hexagonal barrel structure with a downward opening, a connecting hole (24) matched with the inner diameter of the feeding pipe (10) is formed in the middle of the top end of the hexagonal barrel (7), three material separating plates (6) which are centrosymmetric are arranged on the vertical outer wall of the hexagonal barrel (7), a single material separating plate (6) is obliquely arranged, three discharging notches (9) which are centrosymmetric are formed in the side surface of the hexagonal barrel (7), and a material separating cone (8) is fixed in the middle of the bottom of the barrel body (1).
8. The uniformly mixing device for vapor-phase oxo synthesis of dimethyl carbonate according to claim 7, characterized in that two parallel studs (27) are fixed at one end of the material separating plate (6) close to the hexagonal barrel (7), two strip-shaped holes (25) parallel to the plane where the inclined plane of the material separating plate (6) is located are formed in the side surface of the hexagonal barrel (7), and the studs (27) pass through the strip-shaped holes (25) and are respectively sleeved with self-locking nuts (26).
9. The uniformly mixing device for the gas-phase oxo synthesis of dimethyl carbonate according to claim 1, wherein two arc rods (34) are fixed on the outer wall of the feeding pipe (10) and are distributed centrosymmetrically, the melon peel shifting plates (35) which are distributed centrosymmetrically are respectively fixed on the opposite sides of the two arc rods (34), and the inner edges of the melon peel shifting plates (35) are chamfered with round corners (36).
10. The uniformly mixing device for the vapor-phase oxo synthesis of dimethyl carbonate according to claim 9, wherein a hidden groove (38) is reserved inside each of the two arc-shaped rods (34), round holes (37) are formed in the opposite sides of the two arc-shaped rods (34) and are distributed equidistantly, sliding grooves (39) are formed in the inner sides of the arc-shaped rods (34) and are distributed equidistantly, and extension blocks (40) are connected in the sliding grooves (39) in a sliding manner.
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