CN115518598A - Preparation device for synthesizing dimethyl carbonate catalyst - Google Patents

Preparation device for synthesizing dimethyl carbonate catalyst Download PDF

Info

Publication number
CN115518598A
CN115518598A CN202211152763.9A CN202211152763A CN115518598A CN 115518598 A CN115518598 A CN 115518598A CN 202211152763 A CN202211152763 A CN 202211152763A CN 115518598 A CN115518598 A CN 115518598A
Authority
CN
China
Prior art keywords
wall
fixedly connected
groups
stirring
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211152763.9A
Other languages
Chinese (zh)
Inventor
江海龙
储祥军
石北龙
张磊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Highchem Jiangsu Co ltd
Original Assignee
Highchem Jiangsu Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Highchem Jiangsu Co ltd filed Critical Highchem Jiangsu Co ltd
Priority to CN202211152763.9A priority Critical patent/CN115518598A/en
Publication of CN115518598A publication Critical patent/CN115518598A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18Stationary reactors having moving elements inside
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/16Evaporating by spraying
    • B01D1/18Evaporating by spraying to obtain dry solids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D1/00Evaporating
    • B01D1/30Accessories for evaporators ; Constructional details thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/02Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the alkali- or alkaline earth metals or beryllium
    • B01J23/04Alkali metals
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/30Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00Other disintegrating devices or methods
    • B02C19/08Pestle and mortar
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08Cleaning containers, e.g. tanks
    • B08B9/0804Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0808Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C68/00Preparation of esters of carbonic or haloformic acids
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/141Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

A preparation device for synthesizing a dimethyl carbonate catalyst belongs to the technical field of catalyst preparation, and aims to solve the problems that the conventional catalyst powder is easy to adhere to the inner wall of a device and is inconvenient to discharge, and the inner wall of the device is blocked due to long-term non-treatment, so that the circulation is not smooth, the resource waste is caused, and the production benefit is reduced; according to the invention, the conical gear five is driven to rotate by the driving motor three, so that the end face gear ring and the four groups of sliding blocks at the bottom of the end face gear ring are driven to slide along the inner part of the annular groove, the six groups of pushing blocks are driven to rotate, and the multiple groups of driven blocks are continuously pushed, so that the knocking ball continuously knocks the inner wall of the blanking pipe, and the inner wall of the blanking pipe is vibrated, thereby preventing the catalyst powder from adhering to the inner wall of the device and being inconvenient to blank, and further avoiding resource waste and production benefit reduction.

Description

Preparation device for synthesizing dimethyl carbonate catalyst
Technical Field
The invention relates to the technical field of catalyst preparation, in particular to a preparation device for synthesizing a dimethyl carbonate catalyst.
Background
Dimethyl carbonate (DMC for short) with a chemical structural formula of CH3O-CO-CH3O is an important environment-friendly green organic chemical raw material, and can replace methyl tert-butyl ether to be used as an environment-friendly gasoline additive. On the other hand, the dimethyl carbonate is taken as a raw material, can be developed and prepared into various fine special chemicals with high added values, and has wide application in the fields of medicines, pesticides, synthetic materials, dyes, lubricating oil additives, food flavoring agents, electronic chemicals and the like. Currently, the industrial synthesis of dimethyl carbonate mainly comprises a phosgene method, a methanol oxidative carbonylation method, an ester exchange method, a methanol urea method and the like. The direct synthesis of DMC from carbon dioxide and methanol is a hot point studied in recent years, the reaction method does not use any solvent, and simultaneously has no pollution discharge, and is considered as the most economical and safe synthesis method, but because of the stability of carbon dioxide, the reaction for directly synthesizing DMC by taking carbon dioxide and methanol as raw materials is difficult to be carried out thermodynamically, chinese patent publication No. CN201910962576.9 discloses a preparation method of dimethyl carbonate, wherein carbon dioxide and methanol are taken as raw materials, a catalyst is added into a fixed bed reactor, CO2 is introduced for purging, CO2 is continuously introduced and heated to 120-140 ℃, the temperature is kept constant, methanol is added under the condition of 0.5-0.8MPa of pressure, and dimethyl carbonate is obtained by full reaction; the catalyst is a supported catalyst and comprises an active center and a carrier; the active center is a transition metal, and the carrier comprises silicon dioxide, aluminum oxide and one of alkali metal or alkaline earth metal.
Present problem, the preparation flow of synthetic dimethyl carbonate catalyst mainly contains the reaction solution stirring, spray drying and branch material are ground, current preparation facilities mostly go on in the segmentation, in the spray drying process in the middle of, the powder is attached to the device inner wall easily, cause the material to pile up, be not convenient for divide the material to carry out grinding on next step, thereby be not convenient for synthesize the continuous scale production of dimethyl carbonate catalyst, current device grinding assembly moves back driving belt for a long time easily and relaxes, catalyst powder grinding efficiency has been reduced, thereby the production efficiency of catalyst is reduced, the easy unloading of being not convenient for of adhesion device inner wall of current catalyst powder, it can the blocking device inner wall cause the circulation not smooth not to handle for a long time, thereby cause the wasting of resources and reduce the productivity effect.
In order to solve the above problems, a production apparatus for synthesizing a dimethyl carbonate catalyst has been proposed.
Disclosure of Invention
The invention aims to provide a preparation device for synthesizing a dimethyl carbonate catalyst, and solves the problems that the preparation process of synthesizing the dimethyl carbonate catalyst in the background technology mainly comprises reaction solution stirring, spray drying and material distribution grinding, the existing preparation device is mostly carried out in a segmented manner, powder is easy to attach to the inner wall of the device in the middle spray drying process to cause material accumulation, material distribution is inconvenient to carry out next grinding, so that the continuous production of the dimethyl carbonate catalyst is inconvenient to synthesize, a transmission belt is easy to loosen after a grinding component of the existing device runs for a long time, the grinding efficiency of the catalyst powder is reduced, the production efficiency of the catalyst is reduced, the existing catalyst powder is easy to attach to the inner wall of the device to be inconvenient to feed, the inner wall of a blocking device is blocked after long-term treatment, circulation is unsmooth, so that resource waste is caused, and the production benefit is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: the preparation device for synthesizing the dimethyl carbonate catalyst comprises a stirring assembly, wherein a spray drying assembly is arranged on the right side of the stirring assembly, a grinding cylinder is arranged at the lower end of the spray drying assembly, a blanking assembly is arranged at the bottom of the grinding cylinder, the stirring assembly comprises a stirring cylinder arranged at the topmost part, the stirring assembly further comprises a motor I arranged right below the stirring cylinder, an output end of the motor I is fixedly connected with an end face gear I, a stirring shaft is arranged at the top of the end face gear I, the upper end of the stirring shaft penetrates through and is rotatably connected with the bottom wall of the stirring cylinder, a liquid conveying pipe is arranged on the right side surface of the stirring cylinder, and an accelerating pump is arranged in the middle of the liquid conveying pipe;
the (mixing) shaft upper end outside is provided with the breakwater, and the breakwater upper end is provided with the stirring rod, and the stirring rod has seven groups, seven groups the stirring rod run through and with (mixing) shaft fixed connection, the spray drying subassembly include with transfer line other end fixed connection's drying cylinder, the drying cylinder includes shell and inner bag, seted up the hot air chamber between shell and the inner bag, the spray drying subassembly still includes rotates the atomising head of being connected with the transfer line lower extreme, the atomising head outside is provided with scrapes the mud ware, scrapes the mud ware lower extreme and is provided with anti-heap ware.
Furthermore, the spray drying assembly further comprises a rotating shaft fixedly connected with the bevel gear, a material guide device is arranged at the other end of the rotating shaft and comprises an outer cover and a shaft post arranged inside the outer cover, the shaft post is fixedly connected with the other end of the rotating shaft, spiral blades are arranged on the outer side of the shaft post, an air inlet pipe is arranged on the left side of the shell, an air heater is fixedly connected with the other end of the air inlet pipe, and an exhaust pipe is arranged on the right side of the shell.
Further, the atomising head is including setting up the circular hood in hot air chamber inside, and the hood passes through axle and transfer line bottom fixed connection, and the cavity has been seted up to hood inside, and the hood outside is provided with the nozzle, and the nozzle has eight groups, eight groups the nozzle all tangent with the hood edge.
Further, the mud scraper is including setting up the dead lever in atomising head both sides, and is two sets of the dead lever other end all be provided with the scraper blade, two sets of fixedly connected with well core rod and connecting rod between the scraper blade, and well core rod is located the scraper blade middle part, and the connecting rod is located the scraper blade lower extreme, prevents piling the ware including setting up the connecting pin at the connecting rod middle part, and the connecting rod run through and with connecting pin fixed connection, the connecting pin lower extreme is provided with the cover.
Furthermore, the grinding cylinder comprises a feeding pipe fixedly connected with the other end of the outer cover of the material guide, a dust-proof cylinder is fixedly connected with the lower end of the feeding pipe, a material distribution assembly is arranged at the lower end of the feeding pipe, a grinder is arranged at the lower end of the material distribution assembly, the material distribution assembly and the grinder are both located inside the dust-proof cylinder, the material distribution assembly comprises check blocks arranged on the inner wall of the dust-proof cylinder, the check blocks are provided with four groups, a material distribution hopper is arranged on the inner side of each check block, the material distribution hopper is located under the feeding pipe, and the center of the lower end of the material distribution hopper is fixedly connected with a second end face gear through a shaft.
Furtherly, the mill include with a dust prevention section of thick bamboo inner wall fixed connection's mortar, and the mortar is provided with four groups, four groups the mortar upper end all be provided with and grind the subassembly, grind the subassembly including setting up at the inside semiellipsoid shape mill body of mortar, semiellipsoid shape mill body top central point puts fixedly connected with belt pulley, the belt pulley top is through axle fixedly connected with end gear three, a set of grind the subassembly upper end be provided with drive assembly.
Further, transmission assembly includes the double-end motor that passes through pole fixed connection with the dust prevention section of thick bamboo inner wall, double-end motor lower extreme output and a set of three top fixed connection of face gear, double-end motor upper end output is provided with face gear four, the meshing of four upper ends of face gear is connected with bevel gear two, two one ends of bevel gear are through axle fixedly connected with face gear five, the meshing of five outsides of face gear is connected with bevel gear three, three one end of bevel gear is through axle fixedly connected with bevel gear four, and bevel gear four is connected with the meshing of face gear two.
Furthermore, four groups of belt pulleys outside be provided with driving belt, and four groups of belt pulleys pass through driving belt transmission and connect, driving belt inboard is provided with the tensioning subassembly, the tensioning subassembly include with dust cylinder inner wall fixed connection's motor two, the two output ends of motor are provided with two-way threaded rod, the equal threaded connection in two-way threaded rod both ends has the fixed block, two sets of fixed block top all through axle fixedly connected with take-up pulley, two sets of take-up pulley all with driving belt in close contact with.
Further, the unloading subassembly includes the unloading pipe with dust protection cylinder top fixed connection, unloading pipe lower extreme is provided with the ooff valve, the inside vibration subassembly that is provided with of unloading pipe, the vibration subassembly include with unloading inside pipe wall fixed connection's fixed plate, the fixed plate upper end is provided with the vibration ring, the vibration ring top is provided with the apron, the vibration ring includes ring inner wall and the ring outer wall with fixed surface is connected on the fixed plate, and seted up the ring channel between ring inner wall and the ring outer wall, the ring inner wall is provided with motor three, the inside sliding connection of ring channel has the slider, and the slider is provided with four groups, four groups slider upper end be provided with the terminal surface ring gear.
Further, three output ends of the motor run through and are connected with the inner wall of the ring in a rotating mode, three output ends of the motor are fixedly connected with a fifth bevel gear, the fifth bevel gear is located inside the ring groove and is connected with the end face toothed ring in a meshing mode, the end face toothed ring outer wall is provided with a pushing block, six groups of the pushing block are arranged, an oscillator is arranged inside the ring outer wall, multiple groups of the oscillator are arranged, the oscillator comprises a connecting shaft which runs through and is connected with the ring outer wall in a sliding mode, one end of the connecting shaft is provided with a driven block, the other end of the connecting shaft is provided with a knocking ball, a spring is arranged outside the connecting shaft, one end of the spring is fixedly connected with the outer side of the ring outer wall, and the other end of the connecting shaft is fixedly connected with the knocking ball.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention provides a preparation device for synthesizing a dimethyl carbonate catalyst, wherein a first driving motor drives a first end face gear to rotate to drive a stirring shaft to rotate, the stirring shaft rotates to drive a stirring rod to rotate simultaneously to stir solution in a stirring barrel, the reaction process is accelerated, the catalyst solution obtained after reaction is started, a hot air fan is started to generate hot air, the hot air enters a hot air cavity through an air inlet pipe to heat an inner container, an accelerating pump is started to enable the solution in the stirring barrel to enter a cavity through a liquid conveying pipe, then the solution is sprayed out from eight groups of nozzles and is heated by the hot air in the hot air cavity to be dried to form powder, meanwhile, the nozzle is positioned at the tangential position of the edge of a hood, the hood rotates anticlockwise while spraying liquid in the nozzles, a fixed rod drives a scraper to rotate, the powder attached to the inner wall of the inner container is scraped off, the hood is used for preventing the dried powder from being accumulated and facilitating subsequent grinding, the conical gear drives a rotating shaft to rotate, so that a shaft column rotates to drive spiral blades to rotate, the dried powder enters the dust prevention barrel through a feeding pipe under the push of the spiral blades, and slides into gaps between four groups of grinding blocks on the surface of a hopper, thereby facilitating the dimethyl carbonate to be conveniently ground into ellipsoidal gaps between the grinding bowls continuously.
2. According to the preparation device for synthesizing the dimethyl carbonate catalyst, the double-head motor is driven to enable the belt pulley to rotate to grind the catalyst powder between the semi-ellipsoidal grinding body and the mortar, meanwhile, the double-head motor rotates to enable the end face gear IV to rotate, under the combined action of the conical gear II, the end face gear V, the conical gear III and the conical gear IV, the end face gear II rotates to enable the material dividing hopper to rotate, the downward sliding process of the catalyst powder is accelerated, the adhesion to the surface of the material dividing hopper is prevented, the driving motor II can enable the bidirectional threaded rod to rotate, and therefore the two groups of fixed blocks can move along the bidirectional threaded rod under the fixing action of the tension pulley and the transmission belt, the tension degree of the transmission belt is adjusted, the transmission belt is prevented from being loosened, and the grinding efficiency of the catalyst powder is reduced.
3. According to the preparation device for synthesizing the dimethyl carbonate catalyst, the third motor is driven to enable the fifth conical gear to rotate, so that the fifth conical gear is driven to slide along the inner part of the annular groove, the sixth groups of pushing blocks rotate, the sixth groups of driven blocks are continuously pushed, the knocking balls continuously knock the inner wall of the blanking pipe, the inner wall of the blanking pipe is oscillated, the phenomenon that catalyst powder adheres to the inner wall of the device and is inconvenient to blank is avoided, and therefore resource waste and production benefit reduction are avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a stirring assembly of the present invention;
FIG. 3 is a schematic view of the construction of the stirring rod of the present invention;
FIG. 4 is a schematic view of a material guide according to the present invention;
FIG. 5 is a schematic cross-sectional plan view of a spray drying assembly of the present invention;
FIG. 6 is a schematic view of the scraper of the present invention;
fig. 7 is a schematic view of the spray head of the present invention;
FIG. 8 is a schematic view of the feed tube of the present invention;
FIG. 9 is a schematic view of the construction of the dispensing assembly of the present invention;
FIG. 10 is a schematic view of the mortar and drive belt of the present invention;
FIG. 11 is a schematic structural view of the grinding assembly and the transmission assembly of the present invention;
FIG. 12 is a schematic view of the tension assembly of the present invention;
FIG. 13 is a schematic view of the blanking tube of the present invention;
FIG. 14 is a schematic view of the structure of the slider and the oscillation ring of the present invention;
fig. 15 is a schematic view of the structure of the oscillator and the end face ring gear of the present invention.
In the figure: 1. a stirring assembly; 11. a mixing drum; 12. a transfusion tube; 13. an acceleration pump; 14. a first motor; 15. a stirring shaft; 16. a first face gear; 17. a first bevel gear; 18. a water retaining ring; 19. a stirring rod; 2. a spray drying assembly; 21. a hot air blower; 22. an air inlet pipe; 23. an exhaust pipe; 24. a rotating shaft; 25. a material guide device; 251. a column shaft; 252. helical leaves; 26. a drying cylinder; 261. a housing; 262. a hot air chamber; 263. an inner container; 27. a spray head; 271. a nozzle; 272. a head cover; 273. a cavity; 28. a mud scraper; 281. a fixing rod; 282. a squeegee; 283. a center pole; 284. a connecting rod; 29. a pile preventing device; 291. a connecting pin; 292. a cover; 3. a grinding cylinder; 31. a feed pipe; 32. a dust-proof cylinder; 4. a blanking assembly; 41. a feeding pipe; 42. an on-off valve; 43. an oscillating assembly; 431. a fixing plate; 432. a slider; 433. a cover plate; 434. an oscillation ring; 4341. an inner wall of the ring; 4342. an annular groove; 4343. an outer wall of the ring; 435. a third motor; 436. an end face toothed ring; 437. a fifth bevel gear; 438. a pushing block; 439. an oscillator; 4391. a driven block; 4392. knocking and hitting the ball; 4393. a spring; 5. a material distributing component; 51. a stopper; 52. a distributing hopper; 53. a second face gear; 6. a grinder; 61. a mortar; 62. a grinding assembly; 621. a semi-ellipsoidal milling body; 622. a pulley; 623. a third face gear; 7. a tension assembly; 71. a second motor; 72. a fixed block; 73. a bidirectional threaded rod; 74. a tension wheel; 8. a drive belt; 9. a transmission assembly; 91. a double-headed motor; 92. a face gear four; 93. a second bevel gear; 94. a face gear five; 95. a third bevel gear; 96. and a bevel gear IV.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problem that the dimethyl carbonate synthesis catalyst is inconvenient for continuous production, as shown in figures 1-9, the following preferred technical scheme is provided:
the preparation device for synthesizing the dimethyl carbonate catalyst comprises a stirring component 1, wherein a spray drying component 2 is arranged on the right side of the stirring component 1, a grinding cylinder 3 is arranged at the lower end of the spray drying component 2, a blanking component 4 is arranged at the bottom of the grinding cylinder 3, the stirring component 1 comprises a stirring cylinder 11 arranged at the top, the stirring component 1 further comprises a motor 14 arranged right below the stirring cylinder 11, a first end face gear 16 is fixedly connected with the output end of the motor 14, a stirring shaft 15 is arranged at the top of the first end face gear 16, the upper end of the stirring shaft 15 penetrates through and is rotatably connected with the bottom wall of the stirring cylinder 11, a transfusion pipe 12 is arranged on the right side face of the stirring cylinder 11, an accelerating pump 13 is arranged in the middle of the transfusion pipe 12, a water retaining ring 18 is arranged on the outer side of the upper end of the stirring shaft 15, stirring rods 19 are arranged at the upper end of the water retaining ring 18, seven groups of stirring rods 19 penetrate through and are fixedly connected with the stirring shaft 15, the spray drying component 2 comprises a drying cylinder 26 fixedly connected with the other end of the infusion tube 12, the drying cylinder 26 comprises a shell 261 and an inner container 263, a hot air cavity 262 is arranged between the shell 261 and the inner container 263, the spray drying component 2 further comprises a spray head 27 rotatably connected with the lower end of the infusion tube 12, a mud scraper 28 is arranged outside the spray head 27, a pile-preventing device 29 is arranged at the lower end of the mud scraper 28, the spray drying component 2 further comprises a rotating shaft 24 fixedly connected with a first conical gear 17, a material guide 25 is arranged at the other end of the rotating shaft 24, the material guide 25 comprises an outer cover and a shaft column 251 arranged inside the outer cover, the shaft column 251 is fixedly connected with the other end of the rotating shaft 24, spiral blades 252 are arranged outside the shaft column 251, an air inlet tube 22 is arranged at the left side of the shell 261, a hot air blower 21 is fixedly connected with the other end of the air inlet tube 22, an air outlet tube 23 is arranged at the right side of the shell 261, the spray head 27 comprises a circular head cover 272 arranged inside the hot air cavity 262, the head cover 272 is fixedly connected with the bottom of the infusion tube 12 through a shaft, a cavity 273 is formed in the head cover 272, nozzles 271 are arranged outside the head cover 272, eight groups of the nozzles 271 are arranged on the eight groups of the nozzles 271, the edges of the head cover 272 are tangent, the sludge scraper 28 comprises fixing rods 281 arranged on two sides of the spray head 27, scrapers 282 are arranged on the other ends of the two groups of the fixing rods 281, a central rod 283 and a connecting rod 284 are fixedly connected between the two groups of the scrapers 282, the central rod 283 is located in the middle of the scrapers 282, the connecting rod 284 is located at the lower end of the scraper 282, the pile preventer 29 comprises a connecting pin 291 arranged in the middle of the connecting rod 284, the connecting rod 284 penetrates through and is fixedly connected with the connecting pin 291, a cover 292 is arranged at the lower end of the connecting pin 291, the grinding cylinder 3 comprises a feeding tube 31 fixedly connected with the other end of the outer cover of the material guide 25, a dust prevention cylinder 32 is fixedly connected to the lower end of the feeding tube 31, a feed tube 31 is provided with a feed cylinder assembly 5 at the lower end of the feeding tube, the feed tube 5, the feed assembly 5 is provided with a feed hopper 6 at the lower end of the feed assembly 5, the feed hopper 51 is provided with a feed hopper 52, the hopper at four groups of which is arranged on the inner side, the hopper 52, the lower end of the hopper 52, and the hopper 52 is arranged at the front end of the hopper 52, and the end face of the hopper 52 is arranged at the end face of the hopper 52.
Specifically, the first motor 14 is driven to rotate the first end face gear 16 to drive the stirring shaft 15 to rotate, the stirring shaft 15 simultaneously drives the stirring rod 19 to rotate, the solution inside the stirring cylinder 11 is stirred, under the stirring condition, the precursor of the alkali metal or the alkaline earth metal is uniformly mixed with the aqueous solution of the precursor of the silicon dioxide and the alumina at the temperature of 20-85 ℃, the acid is added to adjust the pH value to 0.5-5.5, the catalyst solution is continuously stirred to obtain the catalyst solution, then the mixed solution is subjected to spray drying and molding to obtain spherical particulate matters with the particle size of 50-100 μm, the hot air blower 21 is started to generate hot air, the hot air enters the hot air cavity 262 through the air inlet pipe 22, the inner container 263 is heated, the accelerating pump 13 is started to enable the solution inside the stirring cylinder 11 to enter the cavity 273 through the liquid conveying pipe 12, the hot air is then sprayed out from eight groups of nozzles 271, and is heated by the hot air inside the hot air cavity 262 to form powder, meanwhile, as the nozzle 271 is positioned at the tangent position of the edge of the head cover 272, when the nozzle 271 sprays liquid, the head cover 272 rotates counterclockwise, so that the fixing rod 281 drives the scraper 282 to rotate, powder attached to the inner wall of the inner container 263 is scraped, the cover 292 has the function of preventing dried particle powder from being accumulated, and subsequent grinding is facilitated, the first end face gear 16 rotates to drive the first bevel gear 17 to drive the rotating shaft 24 to rotate, so that the shaft column 251 rotates to drive the spiral blade 252 to rotate, the dried powder enters the dust-proof cylinder 32 through the feeding pipe 31 under the pushing of the spiral blade 252, and slides into the gap between the mortar 61 and the semi-ellipsoidal grinding body 621 of the corresponding four groups from the gap between the two groups of stoppers 51 on the surface of the sub-hopper 52, so as to facilitate grinding, and thereby facilitating the continuous production of the synthetic dimethyl carbonate catalyst.
In order to solve the technical problem that the transmission belt of the grinding assembly is easy to loosen and reduces the grinding efficiency, as shown in figures 10-12, the following preferred technical solutions are provided:
the grinder 6 comprises a mortar 61 fixedly connected with the inner wall of the dust-proof cylinder 32, the mortar 61 is provided with four groups, the upper ends of the four groups of mortars 61 are respectively provided with a grinding assembly 62, the grinding assembly 62 comprises a semi-ellipsoidal grinding body 621 arranged in the mortar 61, the central position of the top of the semi-ellipsoidal grinding body 621 is fixedly connected with a belt pulley 622, the top of the belt pulley 622 is fixedly connected with a third end face gear 623 through a shaft, the upper end of the group of grinding assemblies 62 is provided with a transmission assembly 9, the transmission assembly 9 comprises a double-end motor 91 fixedly connected with the inner wall of the dust-proof cylinder 32 through a rod, the lower end output end of the double-end motor 91 is fixedly connected with the top of the third end face gear 623, the upper end output end of the double-end motor 91 is provided with a fourth end face gear 92, the upper end of the fourth end face gear 92 is connected with a second bevel gear 93 in a meshing manner, one end of the second bevel gear 93 is fixedly connected with a fifth bevel gear 94 through a shaft, the outer side of the fifth bevel gear 94 is connected with a third bevel gear 95 in a meshed manner, one end of the third bevel gear 95 is fixedly connected with a fourth bevel gear 96 through a shaft, the fourth bevel gear 96 is connected with the second bevel gear 53 in a meshed manner, the outer sides of the four groups of belt pulleys 622 are provided with transmission belts 8, the four groups of belt pulleys 622 are connected through the transmission belts 8 in a transmission manner, the inner side of the transmission belts 8 is provided with a tensioning assembly 7, the tensioning assembly 7 comprises a second motor 71 fixedly connected with the inner wall of the dust cylinder 32, the output end of the second motor 71 is provided with a bidirectional threaded rod 73, two ends of the bidirectional threaded rod 73 are respectively in threaded connection with fixing blocks 72, the top ends of the two groups of fixing blocks 72 are respectively connected with tensioning wheels 74 through shafts, and the two groups of tensioning wheels 74 are respectively in close contact with the transmission belts 8.
Specifically, by driving the double-head motor 91, the belt pulley 622 rotates to grind the catalyst powder between the semi-ellipsoidal grinding body 621 and the mortar 61, and meanwhile, the double-head motor 91 rotates to rotate the end face gear four 92, under the combined action of the bevel gear two 93, the end face gear five 94, the bevel gear three 95 and the bevel gear four 96, the end face gear two 53 rotates to rotate the scoring hopper 52, so that the gliding process of the catalyst powder is accelerated, the adhesion on the surface of the scoring hopper 52 is prevented, the driving motor two 71 can rotate the bidirectional threaded rod 73, so that the two groups of fixing blocks 72 can move along the bidirectional threaded rod 73 under the fixing action of the tension pulley 74 and the transmission belt 8, the tension degree of the transmission belt 8 is adjusted, and the transmission belt 8 is prevented from loosening and the catalyst powder grinding efficiency is reduced.
In order to solve the technical problem that the catalyst powder is easy to adhere to the inner wall of the device and is inconvenient to feed, as shown in fig. 13-15, the following preferable technical scheme is provided:
the blanking assembly 4 comprises a blanking pipe 41 fixedly connected with the top of the dust cylinder 32, a switch valve 42 is arranged at the lower end of the blanking pipe 41, an oscillating assembly 43 is arranged inside the blanking pipe 41, the oscillating assembly 43 comprises a fixed plate 431 fixedly connected with the inner wall of the blanking pipe 41, an oscillating ring 434 is arranged at the upper end of the fixed plate 431, a cover plate 433 is arranged at the top of the oscillating ring 434, the oscillating ring 434 comprises an inner ring wall 4341 and an outer ring wall 4343 fixedly connected with the upper surface of the fixed plate 431, an annular groove 4342 is formed between the inner ring wall 4341 and the outer ring wall 4343, a motor three 435 is arranged on the inner wall of the inner ring 4341, a sliding block 432 is connected inside the annular groove 4342 in a sliding manner, the sliding block 432 is provided with four groups, an end face toothed ring is arranged at the upper end of the four groups of sliding blocks 432, the output end of the motor three 435 penetrates through and is rotatably connected with the inner ring wall 4341, a cone-shaped gear five-shaped gear 435 is fixedly connected with the output end of the motor three 435, the cone-shaped gear 437 is positioned inside the annular groove 4342 and is meshed with the end face toothed ring 436, a pushing block is provided with six groups of pushing block 43438, an oscillator 43438 is provided with six groups of pushing block 43438, an oscillator 439 is provided inside the pushing block, the pushing block 43438, the pushing block, the outer wall 43438 is provided with a driven shaft 4391 fixedly connected with a driven shaft 4391, the other end of a spring connected with a driven shaft 4391, and a driven shaft 4393, and a driven shaft connected with the other end connected with a spring 4393, and a driven shaft 4393.
Specifically, the third motor 435 is driven to rotate the fifth bevel gear 437, so as to drive the end face gear ring 436 and the four groups of sliding blocks 432 at the bottom of the end face gear ring to slide along the inside of the annular groove 4342, so that the six groups of pushing blocks 438 rotate, and the multiple groups of driven blocks 4391 are continuously pushed, so that the inner wall of the blanking pipe 41 is continuously knocked by the knocking ball 4392, the inner wall of the blanking pipe 41 is oscillated, the phenomenon that the inner wall of the catalyst powder adhesion device is inconvenient to blank is avoided, and the resource waste and the production benefit reduction are avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The preparation device for synthesizing the dimethyl carbonate catalyst comprises a stirring component (1), and is characterized in that: a spray drying component (2) is arranged on the right side of the stirring component (1), a grinding drum (3) is arranged at the lower end of the spray drying component (2), a blanking component (4) is arranged at the bottom of the grinding drum (3), the stirring component (1) comprises a stirring drum (11) arranged at the top, the stirring component (1) further comprises a motor I (14) arranged right below the stirring drum (11), an end face gear I (16) is fixedly connected with the output end of the motor I (14), a stirring shaft (15) is arranged at the top of the end face gear I (16), the upper end of the stirring shaft (15) penetrates through and is rotatably connected with the bottom wall of the stirring drum (11), a transfusion pipe (12) is arranged on the right side face of the stirring drum (11), and an accelerating pump (13) is arranged in the middle of the transfusion pipe (12);
the outer side of the upper end of the stirring shaft (15) is provided with a water retaining ring (18), the upper end of the water retaining ring (18) is provided with a stirring rod (19), the stirring rod (19) is provided with seven groups, the seven groups of stirring rod (19) run through and are fixedly connected with the stirring shaft (15), the spray drying component (2) comprises a drying cylinder (26) fixedly connected with the other end of the transfusion pipe (12), the drying cylinder (26) comprises a shell (261) and an inner container (263), a hot air cavity (262) is formed between the shell (261) and the inner container (263), the spray drying component (2) further comprises a spray head (27) rotatably connected with the lower end of the transfusion pipe (12), a mud scraper (28) is arranged on the outer side of the spray head (27), and an anti-piling device (29) is arranged at the lower end of the mud scraper (28).
2. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 1, wherein: spray drying subassembly (2) still include with bevel gear (17) fixed connection's pivot (24), the pivot (24) other end is provided with guide (25), guide (25) include the dustcoat and set up at inside jack-post (251) of dustcoat, and jack-post (251) and pivot (24) other end fixed connection, the jack-post (251) outside is provided with spiral leaf (252), shell (261) left side is provided with air-supply line (22), air-supply line (22) other end fixed connection has air heater (21), shell (261) right side is provided with blast pipe (23).
3. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 1, wherein: atomising head (27) is including setting up circular hood (272) in hot gas chamber (262) inside, and hood (272) passes through axle and transfer line (12) bottom fixed connection, and inside cavity (273) of having seted up of hood (272), and hood (272) outside is provided with nozzle (271), and nozzle (271) have eight groups, eight groups nozzle (271) all tangent with hood (272) edge.
4. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 3, wherein: the mud scraper (28) comprises fixing rods (281) arranged on two sides of a spray head (27), the other ends of the fixing rods (281) are provided with scrapers (282), the scrapers (282) are fixedly connected with a central rod (283) and a connecting rod (284), the central rod (283) is located in the middle of the scrapers (282), the connecting rod (284) is located at the lower end of the scrapers (282), the anti-piling device (29) comprises a connecting pin (291) arranged in the middle of the connecting rod (284), the connecting rod (284) penetrates through and is fixedly connected with the connecting pin (291), and a cover (292) is arranged at the lower end of the connecting pin (291).
5. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 2, wherein: grinding cylinder (3) include with feed pipe (31) of the dustcoat other end fixed connection of guide (25), feed pipe (31) lower extreme fixedly connected with dust-proof cylinder (32), feed pipe (31) lower extreme is provided with divides material subassembly (5), divide material subassembly (5) lower extreme to be provided with mill (6), and divide material subassembly (5) and mill (6) all to be located inside dust-proof cylinder (32), divide material subassembly (5) including setting up dog (51) at dust-proof cylinder (32) inner wall, and dog (51) have four groups, four groups dog (51) inboard be provided with divide hopper (52), and divide hopper (52) to be located under feed pipe (31), divide hopper (52) lower extreme central point to put through axle fixedly connected with terminal surface gear two (53).
6. The apparatus for preparing a catalyst for synthesizing dimethyl carbonate according to claim 5, wherein: grinder (6) include mortar (61) with dust prevention cylinder (32) inner wall fixed connection, and mortar (61) are provided with four groups, four groups mortar (61) upper end all be provided with grind and move subassembly (62), grind and move subassembly (62) including setting up at the inside semiellipsoid shape mill body (621) of mortar (61), semiellipsoid shape mill body (621) top central point puts fixedly connected with belt pulley (622), and three (623) of axle fixedly connected with face gear are passed through at belt pulley (622) top, and are a set of grind and move subassembly (62) upper end and be provided with drive assembly (9).
7. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 6, wherein: transmission assembly (9) include with dustproof cylinder (32) inner wall through pole fixed connection's double-end motor (91), double-end motor (91) lower extreme output and a set of three (623) top fixed connection of face gear, double-end motor (91) upper end output is provided with face gear four (92), the meshing of face gear four (92) upper end is connected with bevel gear two (93), shaft fixedly connected with face gear five (94) is passed through to bevel gear two (93) one end, face gear five (94) outside meshing is connected with bevel gear three (95), shaft fixedly connected with bevel gear four (96) is passed through to bevel gear three (95) one end, and bevel gear four (96) are connected with face gear two (53) meshing.
8. The apparatus for preparing a catalyst for synthesizing dimethyl carbonate according to claim 7, wherein: four groups belt pulley (622) outside be provided with driving belt (8), and four groups belt pulley (622) pass through driving belt (8) transmission and connect, driving belt (8) inboard is provided with tensioning subassembly (7), tensioning subassembly (7) including with dust prevention cylinder (32) inner wall fixed connection's two (71), two (71) outputs of motor are provided with two-way threaded rod (73), two-way threaded rod (73) both ends equal threaded connection have fixed block (72), two sets of fixed block (72) top all through axle fixedly connected with take-up pulley (74), two sets of take-up pulley (74) all with driving belt (8) in close contact with.
9. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 5, wherein: the blanking assembly (4) comprises a blanking pipe (41) fixedly connected with the top of the dust cylinder (32), a switch valve (42) is arranged at the lower end of the blanking pipe (41), an oscillating assembly (43) is arranged inside the blanking pipe (41), the oscillating assembly (43) comprises a fixing plate (431) fixedly connected with the inner wall of the blanking pipe (41), an oscillating ring (434) is arranged at the upper end of the fixing plate (431), a cover plate (433) is arranged at the top of the oscillating ring (434), the oscillating ring (434) comprises an inner ring wall (4341) and an outer ring wall (4343) which are fixedly connected with the upper surface of the fixing plate (431), an annular groove (4342) is formed between the inner ring wall (4341) and the outer ring wall (4343), a motor three (435) is arranged on the inner wall of the annular groove (4341), a sliding block (432) is connected inside the annular groove (4342) in a sliding mode, four groups of sliding blocks (432) are arranged, and end face gear rings (436) are arranged at the upper ends of the four groups of the sliding blocks (432).
10. The apparatus for preparing a catalyst for the synthesis of dimethyl carbonate according to claim 9, wherein: the output end of a motor III (435) penetrates through and is rotatably connected with the inner wall of the ring (4341), a bevel gear V (437) is fixedly connected with the output end of the motor III (435), the bevel gear V (437) is positioned in the annular groove (4342) and is meshed with the end face toothed ring (436), the outer wall of the end face toothed ring (436) is provided with a pushing block (438), six groups of pushing blocks (438) are provided, an oscillator (439) is arranged in the outer wall of the ring (4343), a plurality of groups of oscillators (439) are provided, each oscillator (439) comprises a connecting shaft which penetrates through and is in sliding connection with the outer wall of the ring (4343), one end of the connecting shaft is provided with a driven block (4391), the other end of the connecting shaft is provided with a striking ball (4392), a spring (4393) is arranged outside the connecting shaft, one end of the spring (4393) is fixedly connected with the outer side of the outer wall of the ring (4343), and the other end of the connecting shaft is fixedly connected with the striking ball (4392).
CN202211152763.9A 2022-09-21 2022-09-21 Preparation device for synthesizing dimethyl carbonate catalyst Pending CN115518598A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211152763.9A CN115518598A (en) 2022-09-21 2022-09-21 Preparation device for synthesizing dimethyl carbonate catalyst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211152763.9A CN115518598A (en) 2022-09-21 2022-09-21 Preparation device for synthesizing dimethyl carbonate catalyst

Publications (1)

Publication Number Publication Date
CN115518598A true CN115518598A (en) 2022-12-27

Family

ID=84699321

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211152763.9A Pending CN115518598A (en) 2022-09-21 2022-09-21 Preparation device for synthesizing dimethyl carbonate catalyst

Country Status (1)

Country Link
CN (1) CN115518598A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116351534A (en) * 2023-05-26 2023-06-30 淄博京齐力建陶有限公司 Raw material crushing and grinding device for building ceramic processing
CN118477612A (en) * 2024-07-11 2024-08-13 莱芜亿达新材料科技有限公司 High-efficient catalyst carrier nanometer preparation catalytic unit

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334982A1 (en) * 1988-03-30 1989-10-04 Ohkawara Kakohki Co., Ltd. Spray-drying granulation apparatus
CN205731145U (en) * 2016-06-24 2016-11-30 山东义科节能科技股份有限公司 A kind of material powder divider
CN207972205U (en) * 2018-03-20 2018-10-16 开封华邦仪表有限公司 A kind of instrument plastic lid injection molding production equipment
CN208775491U (en) * 2018-11-30 2019-04-23 海南华盛混凝土有限公司 A kind of arch breaking apparatus
CN112354323A (en) * 2020-10-22 2021-02-12 山东滨农科技有限公司 Preparation equipment of triazine neat herbicide
CN213890563U (en) * 2020-10-13 2021-08-06 孟瑜 Mixing device for civil construction
CN213912372U (en) * 2020-11-04 2021-08-10 无锡市群征干燥设备有限公司 A antiseized wall spray drying device for new forms of energy trade
CN216800955U (en) * 2021-12-30 2022-06-24 玖安卡(江苏)智能电力科技有限公司 Glue injection equipment for production and processing of cable accessories
CN115041072A (en) * 2022-05-18 2022-09-13 洞口县万美复合材料有限公司 Antistatic integrated wallboard makes with high-efficient agitating unit of batching

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0334982A1 (en) * 1988-03-30 1989-10-04 Ohkawara Kakohki Co., Ltd. Spray-drying granulation apparatus
CN205731145U (en) * 2016-06-24 2016-11-30 山东义科节能科技股份有限公司 A kind of material powder divider
CN207972205U (en) * 2018-03-20 2018-10-16 开封华邦仪表有限公司 A kind of instrument plastic lid injection molding production equipment
CN208775491U (en) * 2018-11-30 2019-04-23 海南华盛混凝土有限公司 A kind of arch breaking apparatus
CN213890563U (en) * 2020-10-13 2021-08-06 孟瑜 Mixing device for civil construction
CN112354323A (en) * 2020-10-22 2021-02-12 山东滨农科技有限公司 Preparation equipment of triazine neat herbicide
CN213912372U (en) * 2020-11-04 2021-08-10 无锡市群征干燥设备有限公司 A antiseized wall spray drying device for new forms of energy trade
CN216800955U (en) * 2021-12-30 2022-06-24 玖安卡(江苏)智能电力科技有限公司 Glue injection equipment for production and processing of cable accessories
CN115041072A (en) * 2022-05-18 2022-09-13 洞口县万美复合材料有限公司 Antistatic integrated wallboard makes with high-efficient agitating unit of batching

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116351534A (en) * 2023-05-26 2023-06-30 淄博京齐力建陶有限公司 Raw material crushing and grinding device for building ceramic processing
CN118477612A (en) * 2024-07-11 2024-08-13 莱芜亿达新材料科技有限公司 High-efficient catalyst carrier nanometer preparation catalytic unit
CN118477612B (en) * 2024-07-11 2024-09-24 莱芜亿达新材料科技有限公司 High-efficient catalyst carrier nanometer preparation catalytic unit

Similar Documents

Publication Publication Date Title
CN115518598A (en) Preparation device for synthesizing dimethyl carbonate catalyst
CN211837235U (en) Flue gas uniform distribution device for flue gas inlet of desulfurization absorption tower
CN114643013A (en) Traditional chinese medicine granule pelletization device
CN207562784U (en) One kind is suitable for suspending agent class pesticide thread mixing device
CN207312673U (en) Mixing conveying mechanism for pyrophillite particle
CN117603623A (en) Artistic paint and its prepn
CN110053162A (en) A kind of environment-friendly type concrete process equipment for civil engineering work
CN110639861A (en) Rapid processing pretreatment device for agricultural products
CN115722173A (en) Reation kettle of unloading of being convenient for is used in production of carving white powder
CN213485730U (en) Atomizer is used in commercial district afforestation
CN211754757U (en) High-pressure atomization double-control energy-saving granulating device for producing granular bio-organic fertilizer
CN219851042U (en) Impurity removing device for boron nitride production
CN220346543U (en) Water-reducing agent powder screening plant
CN221536674U (en) Liquid fertilizer production reaction kettle
CN214389955U (en) Biological fermentation does not have anti compounding device for fodder
CN205815624U (en) A kind of comminutor producing fertilizer
CN220871383U (en) Feeding direct-connection driving device of drying kiln
CN214438813U (en) Novel high tower granulator
CN206229344U (en) A kind of multistage spray carbonation tower
CN220531620U (en) Reaction kettle
CN116173883B (en) Crawler-type reactor for producing 2, 5-furandicarboxylic acid
CN211221338U (en) Single-horizontal forced concrete mixer
CN221156177U (en) Dry powder pigment mixing arrangement of high degree of consistency
CN217648666U (en) Vibration stirring device for cement product culvert pipe production
CN216204773U (en) Drying device is used in copolymer production

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20221227