CN117815684B - Solution concentration equipment is used in preparation of high purity benzoic acid - Google Patents
Solution concentration equipment is used in preparation of high purity benzoic acid Download PDFInfo
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- CN117815684B CN117815684B CN202410242948.1A CN202410242948A CN117815684B CN 117815684 B CN117815684 B CN 117815684B CN 202410242948 A CN202410242948 A CN 202410242948A CN 117815684 B CN117815684 B CN 117815684B
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- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 235000010233 benzoic acid Nutrition 0.000 title claims abstract description 69
- 239000005711 Benzoic acid Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 94
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 241000521257 Hydrops Species 0.000 claims abstract description 19
- 206010030113 Oedema Diseases 0.000 claims abstract description 19
- 238000007790 scraping Methods 0.000 claims description 20
- 238000004321 preservation Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 14
- 239000004579 marble Substances 0.000 claims description 11
- 238000005452 bending Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 3
- 230000008020 evaporation Effects 0.000 abstract description 25
- 238000001704 evaporation Methods 0.000 abstract description 25
- 239000002918 waste heat Substances 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 description 17
- 238000002425 crystallisation Methods 0.000 description 9
- 230000008025 crystallization Effects 0.000 description 9
- 238000005485 electric heating Methods 0.000 description 5
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 3
- 238000001556 precipitation Methods 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 241000779819 Syncarpia glomulifera Species 0.000 description 1
- -1 aromatic acid organic compound Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003722 gum benzoin Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001739 pinus spp. Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229940036248 turpentine Drugs 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/02—Crystallisation from solutions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/02—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by distortion, beating, or vibration of the surface to be cleaned
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention discloses solution concentration equipment for preparing high-purity benzoic acid, which relates to the technical field of solution concentration and comprises a spherical concentration tank, wherein the spherical concentration tank is used for heating and containing the benzoic acid solution during concentration; the spherical concentration tank comprises an inner container, and a feed inlet and a vent pipe are respectively formed in two sides of the upper surface of the inner container. This solution concentrator is used in high purity benzoic acid preparation sets up at hydrops intracavity downward sloping through the drain bar, drop of water is the drain bar surface can make the drop of water receive to guide to the hydrops intracavity and collect, thereby make the steam that the evaporation produced collect the inner bag skin, carry out waste heat utilization to the steam of evaporation, keep warm to the inner bag, and when heating the water that collects through the heating wire makes the benzoic acid solution concentration in the inner bag, the inner bag skin is immersed in hot water, make inner bag surface temperature rise and be heated evenly, stirring benzoic acid solution contacts with the inner bag inner wall of heating, solution evaporation efficiency accelerates.
Description
Technical Field
The invention relates to the technical field of solution concentration, in particular to solution concentration equipment for preparing high-purity benzoic acid.
Background
Benzoic acid is an aromatic acid organic compound, also the simplest aromatic acid, of the formula C7H6O2. Originally prepared from benzoin gum, it is called benzoic acid. Melting point 122.13 ℃, boiling point 249.2 ℃ and relative density (15/4 ℃) 1.2659. The appearance is white needle-like or scale-like crystals, and sublimates at above 100deg.C. Slightly soluble in cold water, hexane, hot water, ethanol, diethyl ether, chloroform, benzene, carbon disulfide, and turpentine, etc.
At present, when producing high concentration benzoic acid processing production, need carry out solution concentration technology, current solution concentration equipment adopts the mode of heating evaporation generally, heats the jar body through the heating wire, the puddler stirs the solution and makes the water evaporation in the solution, forms benzoic acid crystallization, is influenced by blade position when stirring, is close to the solution stirring frequency of inner wall lower for the solution is heated unevenly, and in addition concentration is accomplished after partial crystallization can be attached to jar internal wall when forming, is inconvenient for collecting when collecting in the follow-up.
Disclosure of Invention
In order to achieve the above purpose, the invention is realized by the following technical scheme: a solution concentrating apparatus for preparing high purity benzoic acid, comprising:
A spherical concentration tank for heating and holding the benzoic acid solution during concentration;
The stirring assembly is fixedly connected inside the spherical concentration tank and is used for stirring the benzoic acid solution when the benzoic acid solution is concentrated; the stirring assembly comprises an outer frame, wherein the outer frames are fixedly connected above the outer surface of the spherical concentration tank, two outer frames are arranged, motors are fixedly connected between opposite surfaces of the two outer frames, the output ends of the motors are fixedly connected with stirring rods, the other ends of the stirring rods penetrate through the surface of the spherical concentration tank and extend into a cavity, a stirring rotating plate is fixedly connected to the surface of one end, close to the motor, of the stirring rod, and the stirring rotating plate is circumferentially distributed on the surface of the stirring rod;
The solution concentration device for preparing the high-purity benzoic acid further comprises:
And the dredging sleeve is fixedly connected to the inner wall surface of the spherical concentration tank and is used for collecting water drops attached to the inner wall of the spherical concentration tank. The motor is used as transmission, and a worker starts the motor, so that the output end of the motor drives the stirring rod and the stirring rotating plate to rotate, and the benzoic acid solution in the liner is stirred.
Preferably, the spherical concentration tank comprises an inner container, a feeding port and a vent pipe are respectively arranged on two sides of the upper surface of the inner container, and a heat-insulating outer barrel is sleeved on the outer surface of the inner container. The benzoic acid solution is injected into the liner from the feed inlet, the heating wire is arranged on the outer side of the spherical concentration tank, the heating wire is started to heat the spherical concentration tank, the stirring assembly is started to stir the solution, the evaporation speed of the solution is accelerated, a large amount of water vapor can be generated in the liner during evaporation, as part of water vapor is adhered to the top of the liner to form water drops, the water drops are easily dropped on the top of the inner wall of the liner to the benzoic acid crystallization surface after concentration is finished to influence the concentration effect, and vapor generated during solution heating evaporation is conveyed to the outside of the device through the breather pipe to carry out subsequent treatment.
Preferably, be provided with the hydrops chamber between outer bucket of heat preservation and inner bag, this hydrops chamber is used for the drop of water to collect, the one side that the ring is close to the outer bucket of heat preservation is provided with the drain board, the drain board is circular-arc flexible material, just drain board fixed mounting is in the hydrops intracavity, and the downtilt sets up in the hydrops intracavity, and drop of water landing can make the drop of water receive to guide to the hydrops intracavity and collect to make the steam that the evaporation produced collect the inner bag skin, carry out waste heat utilization to the steam of evaporation, in order to keep warm the inner bag. When the collected water is heated by the electric heating wire, so that the benzoic acid solution in the inner container is concentrated, the outer layer of the inner container is immersed in hot water, the surface temperature of the inner container is increased and heated uniformly, the benzoic acid solution is stirred to be contacted with the inner wall of the heated inner container, and the solution evaporation efficiency is accelerated.
Preferably, the outer surface fixedly connected with bracing piece of heat preservation outer bucket, the discharge gate has been seted up to the surface that the heat preservation outer bucket is close to bracing piece one side, the discharge gate runs through the surface of heat preservation outer bucket and extends to the surface of inner bag. After the water in the effusion cavity is heated by the electric heating wire, heat conduction is carried out on the inner container, so that the surface of the inner container is heated uniformly, and the concentrated benzoic acid crystals are discharged from the discharge hole.
Preferably, the dredging kit comprises a pasting ring, the pasting ring is sleeved on the outer surface of one side of the liner, far away from the motor, a liquid guide opening is formed between the pasting ring and the liner, the liner is spherical, water drops attached to the inner wall can slide to the periphery, the pasting ring is arranged on the periphery of the liner, gaps are formed between the liner and the heat-insulating outer barrel, and between the pasting ring and the heat-insulating outer barrel, so that the water drops falling off can flow to the surface of the liquid guide plate along the liquid guide opening, and the pasting ring is attached to the inner wall of the heat-insulating outer barrel.
Preferably, the stirring and rotating piece comprises a sticking rod, the sticking rod is fixedly connected to the outer surface of the stirring rod, a spring bending piece is fixedly connected to the surface of the sticking rod, which is close to one end of the motor, and the sticking rod is attached to the surface of the stirring rod, so that the stirring and rotating piece rotates along with the stirring rod, the spring bending piece is connected to the surface of the sticking rod, one side, which is far away from the stirring rod, is in an upward-lifting state, the surface of the spring bending piece is fixedly connected with an everting piece, the everting piece is made of an S-shaped elastic piece, the everting piece is fixedly connected with a scraping wall arc piece, the scraping wall arc piece is in an inclined arrangement, and the scraping wall arc piece is of a bent structure, and the everting piece connected to the surface of the spring bending piece can be thrown outwards when the stirring rod rotates so that the scraping wall arc piece can be in contact with the inner wall of the inner container, and the benzoic acid crystals attached to the inner wall surface are scraped, and the benzoic acid solution is prevented from being concentrated and then attached to the inner wall of the inner container and inconvenient to collect.
Preferably, the surface fixing who scrapes wall arc piece and be close to puddler one side is connected with the pendulum seat that slides, the internal surface sliding connection of pendulum seat has the shake ball, and the puddler rotates, and the shake ball that scrapes wall arc piece below and set up receives the inertia of whipping and can produce the collision with the inner wall of inner bag, shake ball and the inner wall looks adaptation of inner bag. The benzoic acid solution is arranged in the inner container at the initial stage of stirring, the vibrating ball rotates in the solution and collides with the inner wall of the inner container, so that the fluidity of the solution is increased when the vibrating ball stirs the solution, the frequency of the solution at the inner wall of the inner container under stirring is prevented from being lower than that of the solution at the axle center, the solution is heated more uniformly, and the uneven occurrence of precipitation and wall hanging states of the solution stirring is prevented. Most white needle-shaped or scale-shaped crystals are in the inner container at the later stage of stirring, when the inner container is stirred, part of crystals can be attached to the surface of the inner wall of the inner container, and the flicking marble flicking at the moment is flicked outwards along with the rotation of the stirring rod, so that the crystals attached to the inner wall of the inner container are collided with the inner wall of the inner container, and the crystals are subjected to vibration and fall off.
Preferably, the sliding seat comprises a first sector plate fixedly connected to the lower part of the bending surface of the scraping wall arc piece, a sliding plate is fixedly connected to the outer surface of the first sector plate, a sliding groove is formed in the surface of the sliding plate, a protection plate is fixedly connected to one side, away from the first sector plate, of the sliding plate, a second sector plate is fixedly connected to the surface of the protection plate, and the second sector plate is fixedly connected to the lower part of the inclined surface of the scraping wall arc piece. A triangular structure is formed between the first sector plate, the second sector plate and the scraping wall arc piece, when the stirring rod rotates, the vibrating ball slides outwards on the surface of the sliding plate, and the sliding ball drives the elastic belt to slide in the sliding groove.
Preferably, the surface of the second sector plate, which is close to one side of the first sector plate, is fixedly connected with a spring plate, the surface of the spring plate is fixedly connected with a connecting plate, the connecting plate is of a bent structure, and the connecting plate is in extrusion fit with the vibrating marble.
Preferably, the vibrating ball comprises a sliding ball, the sliding ball is connected to the surface of the sliding plate in a sliding manner, and the outer surface of the sliding ball is fixedly connected to one end of the elastic belt; the impact ball is fixedly connected to the other end of the elastic belt; when the impact ball collides with the inner wall of the liner, the impact ball is made of elastic materials, rebound can be generated after impact, the impact ball drives the elastic belt and the sliding ball to slide in the chute and extrude between the elastic belt and the connecting piece, the elastic belt is provided with two elastic belts, the two elastic belts are symmetrically arranged on the surface of the sliding ball, the elastic belts penetrate through the inside of the chute and extend outwards, the connecting piece deforms and abuts against the surface of the protection plate, the connecting piece rebounds and pushes the sliding ball to slide downwards, the sliding ball is limited, the impact ball is convenient to reciprocate, the impact ball is prevented from winding on the surface of the stirring rod due to overlarge rebound amplitude of impact, and the impact ball is matched with the inner wall of the liner.
The invention provides solution concentration equipment for preparing high-purity benzoic acid. The beneficial effects are as follows:
1. This solution concentrator is used in high purity benzoic acid preparation, paste the pole laminating at the surface of puddler for stir the rotor blade along with the puddler rotates, the bullet curved connection piece is in the surface of paste the pole, and one side of keeping away from the puddler is in the state of upwards picking up, and the outward turning piece is S shell fragment material, and the outward turning piece that the bullet curved connection piece surface connects can throw out outside when the puddler rotates, so that scrape wall arc piece can with inner bag inner wall contact, scrape the benzoic acid crystallization of inner wall surface adhesion and move, avoid the concentrated back of benzoic acid solution to adhere to inconvenient collection on the inner bag inner wall.
2. This solution concentrator is used in high purity benzoic acid preparation, the drain board sets up at hydrops intracavity downward sloping, drop of water landing can make the drop of water receive to guide to the hydrops intracavity and collect, thereby make the steam that the evaporation produced collect the inner bag skin, carry out waste heat utilization to the steam of evaporation, keep warm to the inner bag, and when heating the water that collects through the heating wire makes the benzoic acid solution concentration in the inner bag, the inner bag skin is immersed in hot water, make inner bag surface temperature rise and be heated evenly, stirring benzoic acid solution contacts with the inner bag inner wall of heating, solution evaporation efficiency accelerates.
3. This solution concentrator is used in high purity benzoic acid preparation, the puddler pivoted is in the same time, the shake ball that scrapes wall arc piece below set up receives the inertia of whipping and can produce the collision with the inner wall of inner bag, be benzoic acid solution in the stirring initial stage inner bag, shake ball in solution internal rotation, produce the striking with the inner bag inner wall between, so that shake ball increase the mobility of solution when solution stirring, the solution of avoiding inner bag inner wall department receives the frequency of stirring and is less than the solution frequency of axle center department, make solution heated more evenly, prevent that solution stirring is inhomogeneous to appear precipitating the wall built-up state.
4. The solution concentration equipment for preparing the high-purity benzoic acid is characterized in that most of the inner container is white needle-shaped or scaly crystals in the later period of stirring, part of the crystals are adhered to the surface of the inner wall of the inner container when being stirred, and the vibrating marble which is thrown out at the moment rotates along with a stirring rod and is collided with the inner wall of the inner container, so that the crystals adhered to the inner wall are vibrated and shed.
5. This solution concentrator is used in high purity benzoic acid preparation, when bumping ball and inner bag inner wall and produce the collision, because bump the ball and be the elasticity material, can produce the resilience after the striking, bump ball drive bullet area and smooth ball and slide in the spout and produce the extrusion with linking between the piece for after linking the piece takes place deformation and offsets with the guard plate surface, linking the piece and kick-backs and promote smooth ball gliding, carry out spacingly to the smooth ball, be convenient for bump the ball and carry out reciprocating motion, avoid bumping the too big winding in puddler surface of striking rebound range.
Drawings
FIG. 1 is a schematic diagram showing the external structure of a solution concentrating apparatus for preparing high-purity benzoic acid according to the present invention;
FIG. 2 is a schematic view of another external angle structure of a solution concentrating apparatus for preparing high-purity benzoic acid according to the present invention;
FIG. 3 is a schematic diagram showing the internal structure of the solution concentrating apparatus of the present invention;
FIG. 4 is a schematic view of a drainage kit according to the present invention;
FIG. 5 is an enlarged cross-sectional view of the drainage kit according to the present invention;
FIG. 6 is a schematic view of a stirring assembly according to the present invention;
FIG. 7 is a schematic view of a stirring rotor plate structure according to the present invention;
FIG. 8 is an enlarged view of the sliding seat according to the present invention;
Fig. 9 is a schematic view of the structure of the vibrating ball according to the present invention.
In the figure: 1. a spherical concentration tank; 11. a feed inlet; 12. a heat-preserving outer barrel; 3. a drainage kit; 31. a liquid guide plate; 32. pasting a ring; 33. a liquid guide port; 13. a discharge port; 14. a support rod; 15. an inner container; 16. a vent pipe; 2. a stirring assembly; 21. a motor; 22. an outer frame; 23. a stirring rod; 24. stirring and rotating the tablet; 241. spring bending the connecting sheet; 242. sticking a rod; 243. a sliding pendulum seat; 2431. a first sector plate; 2432. a chute; 2433. a slide plate; 2434. a protection plate; 2435. a connecting piece; 2436. spring pressing sheets; 2437. a second sector plate; 244. vibrating the marble; 2441. a sliding ball; 2442. a belt; 2443. striking a ball; 245. scraping a wall arc piece; 246. everting the sheet.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
In a first embodiment, as shown in fig. 1 to 6, the present invention provides a technical solution: a solution concentration device for preparing high-purity benzoic acid comprises a spherical concentration tank 1, wherein the spherical concentration tank 1 is used for heating and containing a benzoic acid solution during concentration;
The spherical concentration tank 1 comprises an inner container 15, a feed inlet 11 and a vent pipe 16 are respectively arranged on two sides of the upper surface of the inner container 15, and a heat-insulating outer barrel 12 is sleeved on the outer surface of the inner container 15. The benzoic acid solution is injected into the inner container 15 from the feed inlet 11, the heating wire is arranged on the outer side of the spherical concentration tank 1, the heating wire is started to heat the spherical concentration tank 1, the stirring assembly 2 is started to stir the solution, the solution evaporation speed is accelerated, a large amount of water vapor can be generated inside the inner container 15 during evaporation, vapor generated during the solution heating evaporation is conveyed to the outside of the device through the breather pipe 16 for subsequent treatment, water drops are formed at the top of the inner container 15 due to the fact that part of the water vapor is attached to the top of the inner wall of the inner container 15, and the water drops easily drop onto the benzoic acid crystallization surface after concentration is completed, so that the concentration effect is affected.
The outer surface of the heat-preservation outer barrel 12 is fixedly connected with a supporting rod 14, a discharge hole 13 is formed in the surface of one side, close to the supporting rod 14, of the heat-preservation outer barrel 12, and the discharge hole 13 penetrates through the surface of the heat-preservation outer barrel 12 and extends to the surface of the liner 15. After the water in the effusion cavity is heated by the electric heating wire, heat conduction is carried out on the inner container 15, so that the surface of the inner container 15 is heated uniformly, and the concentrated benzoic acid crystals are discharged from the discharge hole 13.
Be provided with the hydrops chamber between outer bucket 12 of heat preservation and inner bag 15, this hydrops chamber is used for the drop of water to collect, the one side that pastes ring 32 and is close to outer bucket 12 of heat preservation is provided with drain board 31, drain board 31 is circular-arc flexible material, and drain board 31 fixed mounting is in the hydrops intracavity, slope setting down in the hydrops chamber, drop of water landing can make the drop of water receive to guide to the hydrops intracavity to collect, thereby make the steam that the evaporation produced collect the inner bag 15 inlayer, carry out waste heat utilization to the steam of evaporation, in order to keep warm the inner bag. When the collected water is heated by the electric heating wire to concentrate the benzoic acid solution in the liner 15, the outer layer of the liner 15 is immersed in hot water, so that the surface temperature of the liner 15 is increased and heated uniformly, the benzoic acid solution is stirred to be contacted with the inner wall of the heated liner 15, and the solution evaporation efficiency is accelerated.
A drain sleeve 3, the drain sleeve 3 is fixedly connected to the inner wall surface of the spherical concentration tank 1, and the drain sleeve 3 is used for collecting water drops attached to the inner wall of the spherical concentration tank 1. The motor 21 is used as transmission, and a worker starts the motor 21, so that the output end of the motor 21 drives the stirring rod 23 and the stirring rotary plate 24 to rotate, and the benzoic acid solution in the liner 15 is stirred.
The dredging kit 3 comprises a pasting ring 32, the pasting ring 32 is sleeved on the outer surface of one side, far away from the motor 21, of the inner container 15, a liquid guide opening 33 is formed between the pasting ring 32 and the inner container 15, as the inner container 15 is spherical, water drops attached to the inner wall can slide to the periphery, the pasting ring 32 is arranged on the periphery of the inner container 15, gaps are formed between the inner container 15 and the heat-insulating outer barrel 12, between the pasting ring 32 and the heat-insulating outer barrel 12, and the water drops can flow to the surface of the liquid guide plate 31 along the liquid guide opening 33, and the pasting ring 32 is attached to the inner wall of the heat-insulating outer barrel 12.
A second embodiment, referring to fig. 6 to 9, is a stirring assembly 2, wherein the stirring assembly 2 is fixedly connected to the inside of the spherical concentration tank 1, and the stirring assembly 2 is used for stirring the benzoic acid solution when the benzoic acid solution is concentrated; the stirring assembly 2 comprises outer frames 22, wherein the outer frames 22 are fixedly connected above the outer surface of the spherical concentration tank 1, two outer frames 22 are arranged, a motor 21 is fixedly connected between opposite surfaces of the two outer frames 22, the output end of the motor 21 is fixedly connected with a stirring rod 23, the other end of the stirring rod 23 penetrates through the surface of the spherical concentration tank 1 and extends into a cavity, the surface of the stirring rod 23, which is close to one end of the motor 21, is fixedly connected with stirring rotating plates 24, and the stirring rotating plates 24 are circumferentially distributed on the surface of the stirring rod 23;
The stirring piece 24 includes pasting the pole 242, pasting the surface at pole 242 fixed connection at the surface of puddler 23, pasting the surface mounting that pole 242 is close to motor 21 one end is connected with bullet curved connection piece 241, pasting the pole 242 laminating at the surface of puddler 23, make stir the piece 24 and rotate along with puddler 23, bullet curved connection piece 241 connects at the surface of pasting the pole 242, one side of keeping away from puddler 23 is in the state of upwards picking up, the surface mounting of bullet curved connection piece 241 has the eversion piece 246, eversion piece 246 is S type shell fragment material, eversion piece 246 fixed surface is connected with and scrapes wall arc piece 245, scrape wall arc piece 245 and set up for the slope, and scrape wall arc piece 245 and be the column structure of buckling, so that scrape wall arc piece 245 can outwards throwing away with inner bag 15 inner wall contact, scrape the benzoic acid crystallization that the inner wall surface adheres to, avoid the concentrated back of benzoic acid solution to adhere to on the inner wall of inner bag 15 inconvenient collection.
The surface of the scraping wall arc piece 245 near one side of the stirring rod 23 is fixedly connected with a sliding pendulum seat 243, the inner surface of the sliding pendulum seat 243 is slidably connected with a vibrating ball 244, and when the stirring rod 23 rotates, the vibrating ball 244 arranged below the scraping wall arc piece 245 collides with the inner wall of the inner container 15 due to the inertia of the throwing motion, and the vibrating ball 244 is matched with the inner wall of the inner container 15. The benzoic acid solution is arranged in the inner container 15 at the initial stirring stage, the vibrating ball 244 rotates in the solution and collides with the inner wall of the inner container 15, so that the fluidity of the solution is increased when the vibrating ball 244 stirs the solution, the frequency of the solution at the inner wall of the inner container 15 is prevented from being stirred and is lower than that at the axle center, the solution is heated more uniformly, and the uneven precipitation wall hanging state of the solution is prevented. Most of the inner container 15 is white needle-like or scaly crystal in the later period of stirring, when the inner container is stirred, part of the crystal is attached to the inner wall surface of the inner container 15, and the vibration marble 244 which is thrown out at the moment is thrown out along with the rotation of the stirring rod 23, and collision is generated between the vibration marble and the inner wall of the inner container 15, so that the crystal attached to the inner wall is vibrated and falls off.
The sliding seat 243 comprises a first sector plate 2431, the first sector plate 2431 is fixedly connected below the bending surface of the scraping wall arc piece 245, the outer surface of the first sector plate 2431 is fixedly connected with a sliding plate 2433, a sliding groove 2432 is formed in the surface of the sliding plate 2433, one side of the sliding plate 2433 away from the first sector plate 2431 is fixedly connected with a protection plate 2434, the surface of the protection plate 2434 is fixedly connected with a second sector plate 2437, and the second sector plate 2437 is fixedly connected below the inclined surface of the scraping wall arc piece 245. A triangular structure is formed between the first sector plate 2431, the second sector plate 2437 and the scraping arc piece 245, when the stirring rod 23 rotates, the vibrating ball 244 slides outwards on the surface of the sliding plate 2433, and the sliding ball 2441 drives the elastic belt 2442 to slide in the sliding groove 2432.
The surface of the second sector plate 2437 near one side of the first sector plate 2431 is fixedly connected with a snap-on piece 2436, the surface of the snap-on piece 2436 is fixedly connected with a connecting piece 2435, the connecting piece 2435 is of a bent structure, and the connecting piece 2435 is in extrusion fit with the vibration ball 244.
The vibrating ball 244 comprises a sliding ball 2441, the sliding ball 2441 is connected to the surface of the sliding plate 2433 in a sliding way, and the outer surface of the sliding ball 2441 is fixedly connected to one end of the elastic belt 2442; a striking ball 2443, the striking ball 2443 being fixedly connected to the other end of the belt 2442; when the impact ball 2443 collides with the inner wall of the liner 15, the impact ball 2443 is made of elastic materials, rebound occurs after impact, the impact ball 2443 drives the elastic belt 2442 and the sliding ball 2441 to slide in the sliding groove 2432 and squeeze with the connecting piece 2435, the elastic belt 2442 is provided with two elastic belts 2442 symmetrically arranged on the surface of the sliding ball 2441, the elastic belt 2442 penetrates through the inside of the sliding groove 2432 and extends outwards, the connecting piece 2435 deforms and abuts against the surface of the protection plate 2434, the connecting piece 2435 rebounds and pushes the sliding ball 2441 to slide downwards, the sliding ball 2441 is limited, the impact ball 2443 is convenient to reciprocate, the impact rebound of the impact ball 2443 is prevented from being wound on the surface of the stirring rod 23 excessively, and the impact ball 2443 is matched with the inner wall of the liner 15.
During the use, annotate the inner bag 15 with benzoic acid solution from pan feeding mouth 11 in, the spherical concentrated jar 1 outside is provided with the heating wire, start the heating wire and heat spherical concentrated jar 1, start stirring subassembly 2 stirs the solution, accelerate solution evaporation rate, the inside a large amount of steam that can produce of inner bag 15 during evaporation, because some steam adheres to the inner bag 15 top and forms the drop easily to the benzoic acid crystallization surface after the concentration is accomplished at inner bag 15 inner wall top influence concentration effect, the steam that produces when solution heating evaporation carries out subsequent treatment outward through breather pipe 16 to the device, be provided with the hydrops chamber between heat preservation outer bucket 12 and inner bag 15, the water in the hydrops chamber carries out heat conduction through the heating wire back to inner bag 15, so that inner bag 15 surface is heated evenly, benzoic acid crystallization after the concentration is accomplished is discharged from discharge gate 13.
Paste the pole 242 laminating at the surface of puddler 23 for stir the rotor plate 24 along with puddler 23 rotates, the bullet curved connection piece 241 is connected on the surface of paste pole 242, and one side of keeping away from puddler 23 is in the state of upwards picking up, and the piece 246 that turns up is S shell fragment material, and the piece 246 that turns up that the curved connection piece 241 surface is connected of bullet can throw out outside when puddler 23 rotates, so that scrape wall arc piece 245 can with inner bag 15 inner wall contact, scrape the benzoic acid crystallization of inner wall surface adhesion and move, avoid the concentrated back of benzoic acid solution to adhere to inconvenient collection on the inner bag 15 inner wall. The stirring rod 23 rotates, and the vibration ball 244 arranged below the scraping arc piece 245 is subjected to the inertia of swinging to collide with the inner wall of the inner container 15, the benzoic acid solution is arranged in the inner container 15 in the initial stirring stage, the vibration ball 244 rotates in the solution and collides with the inner wall of the inner container 15, so that the vibration ball 244 increases the fluidity of the solution during stirring of the solution, the frequency of the solution at the inner wall of the inner container 15 is prevented from being lower than the frequency of the solution at the axle center, the solution is heated more uniformly, and the uneven precipitation wall hanging state of the solution stirring is prevented. Most of the inner container 15 is white needle-like or scaly crystal in the later period of stirring, when the inner container is stirred, part of the crystal is attached to the inner wall surface of the inner container 15, and the vibration marble 244 which is thrown out at the moment is thrown out along with the rotation of the stirring rod 23, and collision is generated between the vibration marble and the inner wall of the inner container 15, so that the crystal attached to the inner wall is vibrated and falls off.
When the stirring rod 23 rotates, the impact ball 2443 collides with the inner wall of the inner container 15, the impact ball 2443 is made of elastic materials and can rebound after collision, the impact ball 2443 drives the elastic belt 2442 and the sliding ball 2441 to slide in the sliding groove 2432 and extrude between the elastic belt 2442 and the connecting piece 2435, the connecting piece 2435 deforms and abuts against the surface of the protection plate 2434, and then the connecting piece 2435 rebounds and pushes the sliding ball 2441 to slide downwards, the sliding ball 2441 is limited, the impact ball 2443 is convenient to reciprocate, and the impact rebound amplitude of the impact ball 2443 is prevented from being excessively wound on the surface of the stirring rod 23.
Because the inner container 15 is spherical, the water drops attached to the inner wall can slide to the periphery, the attaching ring 32 is arranged on the periphery of the inner container 15, gaps are formed between the inner container 15 and the heat-preserving outer barrel 12, and between the attaching ring 32 and the heat-preserving outer barrel 12, so that the water drops can flow to the surface of the liquid guide plate 31 along the liquid guide opening 33, the water drops are obliquely arranged downwards in the liquid accumulation cavity, the water drops can be guided to the surface of the liquid guide plate 31 to be collected in the liquid accumulation cavity, so that water vapor generated by evaporation is collected on the outer layer of the inner container 15, waste heat is utilized for heat preservation of the inner container, and when the collected water is heated through the electric heating wire, so that a benzoic acid solution in the inner container 15 is concentrated, the outer layer of the inner container 15 is immersed in hot water, so that the surface temperature of the inner container 15 is increased and heated uniformly, the benzoic acid solution is stirred to be contacted with the inner wall of the heated inner container 15, and the solution evaporation efficiency is accelerated.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (4)
1. A solution concentrating apparatus for producing high purity benzoic acid, comprising:
A spherical concentration tank (1), wherein the spherical concentration tank (1) is used for heating and containing the benzoic acid solution during concentration;
The stirring assembly (2) is fixedly connected inside the spherical concentration tank (1), and the stirring assembly (2) is used for stirring the benzoic acid solution when the benzoic acid solution is concentrated;
The stirring assembly (2) comprises an outer frame (22), the outer frame (22) is fixedly connected above the outer surface of the spherical concentration tank (1), two outer frames (22) are provided, motors (21) are fixedly connected between opposite surfaces of the two outer frames (22), one end of each stirring rod (23) is fixedly connected with the output end of each motor (21), the other end of each stirring rod (23) penetrates through the surface of the spherical concentration tank (1) and extends into the cavity, stirring rotary plates (24) are fixedly connected to the surface of each stirring rod (23) close to one end of each motor (21), and the stirring rotary plates (24) are four and circumferentially distributed on the surface of each stirring rod (23);
The solution concentration device for preparing the high-purity benzoic acid further comprises:
A dredging sleeve (3), wherein the dredging sleeve (3) is fixedly connected to the inner wall surface of the spherical concentration tank (1), and the dredging sleeve (3) is used for collecting water drops attached to the inner wall of the spherical concentration tank (1);
The spherical concentration tank (1) comprises an inner container (15), wherein a feed inlet (11) and a vent pipe (16) are respectively formed in two sides of the upper surface of the inner container (15), and a heat-insulating outer barrel (12) is sleeved on the outer surface of the inner container (15);
The stirring rotating piece (24) comprises a sticking rod (242), the sticking rod (242) is fixedly connected to the outer surface of the stirring rod (23), a spring bending piece (241) is fixedly connected to the surface of the sticking rod (242) close to one end of the motor (21), an outward turning piece (246) is fixedly connected to the surface of the spring bending piece (241), the outward turning piece (246) is made of an S-shaped elastic piece, a wall scraping arc piece (245) is fixedly connected to the surface of the outward turning piece (246), the wall scraping arc piece (245) is obliquely arranged, and the wall scraping arc piece (245) is of a bent structure;
the surface of the scraping wall arc piece (245) close to one side of the stirring rod (23) is fixedly connected with a sliding pendulum seat (243), the inner surface of the sliding pendulum seat (243) is connected with a vibrating marble (244) in a sliding manner, and the vibrating marble (244) is matched with the inner wall of the inner container (15);
The sliding seat (243) comprises a first sector plate (2431), the first sector plate (2431) is fixedly connected below a bending surface of the scraping wall arc piece (245), a sliding plate (2433) is fixedly connected to the outer surface of the first sector plate (2431), a sliding groove (2432) is formed in the surface of the sliding plate (2433), a protection plate (2434) is fixedly connected to one side, away from the first sector plate (2431), of the sliding plate (2433), a second sector plate (2437) is fixedly connected to the surface of the protection plate (2434), and the second sector plate (2437) is fixedly connected below the inclined surface of the scraping wall arc piece (245);
The surface of the second sector plate (2437) close to one side of the first sector plate (2431) is fixedly connected with a snap-on sheet (2436), the surface of the snap-on sheet (2436) is fixedly connected with a connecting sheet (2435), the connecting sheet (2435) is of a bent structure, and the connecting sheet (2435) is in extrusion fit with a vibrating marble (244);
The utility model provides a vibrating ball (244) includes slide ball (2441), slide ball (2441) sliding connection is at the surface of slide (2433), the surface fixedly connected with elastic webbing (2442) of slide ball (2441) one end, elastic webbing (2442) are provided with two, two elastic webbing (2442) symmetry sets up the surface at slide ball (2441), elastic webbing (2442) run through the inside at spout (2432) and outwards extend, the other end fixedly connected with striking ball (2443) of elastic webbing (2442), striking ball (2443) are elastic material, just striking ball (2443) and inner bag (15) inner wall looks adaptation.
2. The solution concentrating apparatus for high-purity benzoic acid production according to claim 1, wherein: the outer surface fixedly connected with bracing piece (14) of heat preservation outer bucket (12), bracing piece (14) are provided with three, three bracing piece (14) are circumference form and distribute the surface at heat preservation outer bucket (12), discharge gate (13) have been seted up on the surface of being close to bracing piece (14) one side of heat preservation outer bucket (12), discharge gate (13) run through the surface of heat preservation outer bucket (12) and extend to the surface of inner bag (15).
3. The solution concentrating apparatus for high-purity benzoic acid production according to claim 1, wherein: the dredging sleeve member (3) comprises a pasting ring (32), the pasting ring (32) is sleeved on the outer surface of one side, far away from the motor (21), of the inner container (15), a liquid guide opening (33) is formed between the pasting ring (32) and the inner container (15), and the pasting ring (32) is pasted on the inner wall of the heat-insulation outer barrel (12).
4. A solution concentrating apparatus for high purity benzoic acid production according to claim 3 wherein: the utility model discloses a thermal insulation outer barrel, including outer barrel (12) and inner bag (15), be provided with hydrops chamber between outer barrel (12) and inner bag (15), this hydrops chamber is used for the drop of water to collect, one side that is close to outer barrel (12) of thermal insulation is provided with drain board (31) to paste ring (32), drain board (31) are circular-arc flexible material, just drain board (31) fixed mounting is in the hydrops intracavity.
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