CN114534281A - Hydroquinone spray drying device and method - Google Patents
Hydroquinone spray drying device and method Download PDFInfo
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- CN114534281A CN114534281A CN202210179508.7A CN202210179508A CN114534281A CN 114534281 A CN114534281 A CN 114534281A CN 202210179508 A CN202210179508 A CN 202210179508A CN 114534281 A CN114534281 A CN 114534281A
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- hydroquinone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/16—Evaporating by spraying
- B01D1/18—Evaporating by spraying to obtain dry solids
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a hydroquinone spray drying device and a method, relates to the field of hydroquinone spray drying, and solves the problems that the inner wall of a cylinder is easy to adsorb a large amount of hydroquinone white crystals when the existing hydroquinone spray drying device is used, the yield efficiency of hydroquinone is reduced and the service life of the cylinder is influenced due to long-time non-cleaning And (4) contacting.
Description
Technical Field
The invention relates to the technical field of hydroquinone spray drying, in particular to a hydroquinone spray drying device and a hydroquinone spray drying method.
Background
Hydroquinone is an organic compound, is a compound formed by replacing two para-hydrogens of benzene by hydroxyl, is white crystal, is also called hydroquinone, is toxic, and can cause symptoms of headache, dizziness, tinnitus, pale complexion and the like after being taken by 1 g by mistake for adults. Hydroquinone is combustible in the presence of open fire and high heat, can react with strong oxidant, and is decomposed by high heat to release toxic gas, and is mainly used for preparing black-and-white developer, anthraquinone dye, azo dye, rubber antioxidant, stabilizer and antioxidant. Spray drying is a method of applying systematic technology to material drying, and is characterized by that after the dilute material is atomized in drying chamber, in the contact with hot air the water content is quickly vaporized so as to obtain the dried product. The method can directly dry the solution and emulsion into powder or granular product, and can omit the processes of evaporation, pulverization, etc., and spray drying (inlet air temperature is 160 deg.C, outlet air temperature is 70 deg.C).
When the existing hydroquinone spray drying device is used for drying, the inner wall of a cylinder body is easy to adsorb white hydroquinone crystals after drying, substances adsorbed by the inner wall can be accumulated due to long-time failure in cleaning, the collection of hydroquinone products is influenced, the service life of the cylinder body can be shortened while the productivity is reduced, and therefore, the hydroquinone spray drying device and the hydroquinone spray drying method are provided.
Disclosure of Invention
The invention aims to provide a hydroquinone spray drying device and a hydroquinone spray drying method which are convenient for clearing hydroquinone crystals attached to the inner wall of a cylinder body, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a hydroquinone spray drying device comprises a barrel and a shaking device, wherein the top end of the barrel is fixedly connected with a feeding pipe, one end of the feeding pipe is fixedly connected with an atomizing nozzle, an air heating device is fixedly connected onto the barrel, a device groove is formed in the barrel, a conical discharge hole is formed in the bottom end of the device groove, a discharge pipe is fixedly connected to the bottom end of the conical discharge hole, a material receiving cyclone is fixedly connected to the discharge pipe, an elastic inner container is fixedly connected into the device groove, the top end of the elastic inner container is fixedly connected with the top end of the device groove, the bottom end of the elastic inner container is fixedly connected with the top end of the conical discharge hole, the shaking device is arranged in the device groove and used for driving the elastic inner container to shake, crystals adsorbed on the elastic inner container are shaken off, and meanwhile, contact between atomized hydroquinone spray and high-temperature gas in the elastic inner container is accelerated, the efficiency of hydroquinone is dry in the promotion spraying, air heating device is used for the drive the operation of shake device, through setting up air heating device and shake device, is convenient for drive through air heating device, drives the operation of shake device to make the elastic inner bag carry out the reciprocal shake of moderate degree, one comes to shake off the white crystallization of adsorbed hydroquinone on the elastic inner bag, two comes to pass through the shake of elastic inner bag makes atomizing hydroquinone in the elastic inner bag fully contacts with high temperature air, promotes drying efficiency, and the device easy operation is swift, has improved the drying efficiency of hydroquinone, facilitates the use.
Preferably, the shaking device comprises a plurality of connecting rods which are connected in a mutually rotating mode in pairs, any two connecting rods are connected with a first rotating shaft in a rotating mode, one end of the first rotating shaft is connected with a limiting sliding block in a rotating mode, the other end of the first rotating shaft is connected with a push-pull rod in a rotating mode, the top end of the push-pull rod is fixedly connected with a connecting block fixedly connected with the outer wall of the elastic inner container, a plurality of guide sliding rails connected with the limiting sliding block in a sliding mode are fixedly connected in the device groove, and a swinging piece used for driving the push-pull rod to enable the elastic inner container to shake is arranged in the device groove and is convenient for driving the elastic inner container to shake.
Preferably, the swinging piece comprises a second rotating shaft rotatably connected with the device groove, a swinging rod is fixedly connected to the second rotating shaft, telescopic rods are slidably inserted into the upper end and the lower end of the swinging rod, the telescopic rods are rotatably connected with one end of the push-pull rod, and the air heating device is used for driving the swinging rod to continuously swing in a reciprocating manner so as to drive the push-pull rod to move in a reciprocating manner.
Preferably, air heating device includes the intake pipe, fixedly connected with air heater and air pump in the intake pipe, intake pipe fixedly connected with the first ring pipe that the intake pipe is linked together, a plurality of first minutes pipes of fixedly connected with on the first ring pipe, device inslot fixedly connected with multiunit mounting bracket, be equipped with on the mounting bracket and be used for through high-pressure gas in the first branch pipe drives the swinging arms carries out reciprocating swing's drive arrangement, is convenient for utilize the external air heating pressurization.
Preferably, drive arrangement include fixed mounting in first box and second box on the mounting bracket, first box with the one end of second box runs through respectively and sliding connection has first slide bar and second slide bar, first slide bar with on the second slide bar respectively fixedly connected with first box with second box sliding connection's first metal piston and second metal piston, first box with the second box all is equipped with through high-pressure gas flow in the first branch pipe drives first slide bar with the second slide bar carries out flexible linkage in turn, first slide bar with the second slide bar all is equipped with and is used for driving second pivot pivoted connecting piece is convenient for drive the swinging arms through the high-pressure gas in the first branch pipe and carries out reciprocating swing.
Preferably, the connecting piece comprises a driving plate fixedly installed at one end of the second rotating shaft, an I-shaped clamping block is fixedly connected to one end of the first sliding rod and one end of the second sliding rod, and a clamping groove used for movably clamping the I-shaped clamping block is formed in the driving plate, so that the first sliding rod and the second sliding rod can drive the second rotating shaft to rotate conveniently.
Preferably, the linkage member comprises two groups of guide rails fixedly mounted on the first box body and the second box body respectively, the two groups of guide rails are connected with magnetic blocks respectively magnetically attracted with the first metal piston and the second metal piston in a sliding manner, the two groups of guide rails are connected with baffles in a sliding manner, the baffle plate is provided with a communicating hole, the first box body and the second box body are both provided with an air inlet and an air outlet, the communication hole is used for controlling the opening and closing states of the air inlet and the air outlet, the first branch pipe is fixedly connected with the first box body and the second box body, the air inlet is communicated with the first branch pipe, the air outlet is provided with a communicating piece for leading exhausted hot air to the interior of the elastic inner container, and the first sliding rod and the second sliding rod are driven to alternately stretch and retract through high-pressure air flow in the first branch pipe.
Preferably, the communicating piece comprises a second annular pipe fixedly installed in the device groove, a plurality of second branch pipes communicated with the exhaust port are fixedly connected to the second annular pipe, and a plurality of third branch pipes communicated with the interior of the cylinder are fixedly connected to the second annular pipe, so that exhausted high-temperature gas can be conveniently introduced into the cylinder for drying.
A hydroquinone spray drying method comprises the following steps:
step one, a preparation stage: the hydroquinone solution to be dried is introduced into the feeding pipe and sprayed into the cylinder through the atomizing nozzle, the air heating device heats and pressurizes the outside air and introduces the outside air into the cylinder, the moisture in the atomized hydroquinone is heated and quickly evaporated into a gaseous state, the hydroquinone is dehydrated to form white crystals, and the white crystals are pumped out from the conical discharge hole below by the material receiving cyclone to be collected;
step two, a driving stage: the air heating device drives the shaking device to operate by utilizing the pressure in the air flowing process when being introduced, and the air after being driven is introduced into the cylinder to complete the drying action after the temperature of the air is reduced to an appropriate value due to the high-temperature combustibility of the hydroquinone;
step three, a shaking stage: the shaking device is driven by the air heating device and can drive the elastic inner container to shake in a reciprocating mode appropriately, so that white hydroquinone crystals adsorbed on the elastic inner container are shaken off, and atomized hydroquinone in the elastic inner container can be in full contact with high-temperature air through shaking of the elastic inner container, and drying efficiency is improved.
Compared with the prior art, the invention has the beneficial effects that:
the invention solves the problems that the inner wall of the cylinder is easy to adsorb a large amount of hydroquinone white crystals when the existing hydroquinone spray drying device is used, the yield efficiency of hydroquinone is reduced and the service life of the cylinder is influenced when the existing hydroquinone spray drying device is not cleaned for a long time, and the air heating device and the shaking device are arranged, so that the shaking device is driven to operate conveniently through the driving of the air heating device, the elastic inner container is subjected to moderate reciprocating shaking, the hydroquinone white crystals adsorbed on the elastic inner container are shaken off, and the atomized hydroquinone in the elastic inner container is fully contacted with high-temperature air through the shaking of the elastic inner container, the drying efficiency is improved, the device is simple and rapid to operate, the drying efficiency of hydroquinone is improved, and the device is convenient to use.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall construction of the present invention;
FIG. 3 is a schematic view of the internal structure of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 3;
FIG. 5 is a schematic structural diagram of a driving device according to the present invention;
FIG. 6 is an enlarged view of area B of FIG. 5;
FIG. 7 is a sectional view of the driving device according to the present invention;
FIG. 8 is an enlarged view of area C of FIG. 7;
FIG. 9 is a diagram illustrating a structure of a dithering apparatus according to the present invention;
fig. 10 is an enlarged view of the area D in fig. 9.
In the figure: 1-a cylinder body; 2-a feeding pipe; 3-an atomizing spray head; 4-air heating means; 5-device slot; 6-conical discharge hole; 7-a discharge pipe; 8-receiving cyclone; 9-an elastic inner container; 10-a dithering device; 11-a connecting rod; 12-a first shaft; 13-a limiting slide block; 14-a push-pull rod; 15-connecting blocks; 16-a guide rail; 17-a pendulum; 18-a second shaft; 19-a swing lever; 20-a telescopic rod; 21-an air inlet pipe; 22-an air heater; 23-an air pump; 24-a first annular tube; 25-first branch pipe; 26-a mounting frame; 27-a drive device; 28-a first box; 29-a second box; 30-a first sliding bar; 31-a second slide bar; 32-a first metal piston; 33-a second metal piston; 34-a linkage; 35-a connector; 36-a drive plate; 37-H-shaped fixture block; 38-a snap groove; 39-a guide rail; 40-magnetic blocks; 41-a baffle plate; 42-communicating holes; 43-air inlet; 44-an exhaust port; 45-a communication member; 46-a second annular tube; 47-second branch pipe; 48-third branch pipe.
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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Referring to fig. 1-4, a hydroquinone spray drying device shown in the figure comprises a cylinder 1 and a shaking device 10, wherein the top end of the cylinder 1 is fixedly connected with a feeding pipe 2, one end of the feeding pipe 2 is fixedly connected with an atomizing nozzle 3, the cylinder 1 is fixedly connected with an air heating device 4, a device groove 5 is arranged in the cylinder 1, the bottom end of the device groove 5 is provided with a conical discharge hole 6, the bottom end of the conical discharge hole 6 is fixedly connected with a discharge pipe 7, the discharge pipe 7 is fixedly connected with a material receiving cyclone 8, an elastic liner 9 is fixedly connected in the device groove 5, the top end of the elastic liner 9 is fixedly connected with the top end of the device groove 5, the bottom end is fixedly connected with the top end of the conical discharge hole 6, the shaking device 10 is arranged in the device groove 5 and used for driving the elastic liner 9 to shake, shaking crystals adsorbed on the elastic liner 9 and simultaneously accelerating the contact between atomized hydroquinone spray in the elastic liner 9 and high-temperature gas, the efficiency of hydroquinone drying in the spray is improved and the air heating device 4 is used for driving the operation of the shaking device 10.
Referring to fig. 1-10, a hydroquinone spray drying method is shown, which comprises the following steps:
step one, a preparation stage: the hydroquinone solution to be dried is introduced into a feeding pipe 2 and sprayed into a cylinder 1 through an atomizing nozzle 3, external air is heated and pressurized by an air heating device 4 and introduced into the cylinder 1, moisture in the atomized hydroquinone is heated and quickly evaporated into a gaseous state, and the hydroquinone is dehydrated to form white crystals which are pumped out from a conical discharge port 6 at the lower part by a material receiving cyclone 8 for collection;
step two, a driving stage: the air heating device 4 can drive the shaking device 10 to operate by utilizing the pressure in the air flowing process when being introduced, and the air after being driven is introduced into the cylinder 1 to complete the drying action after the temperature of the air is reduced to an appropriate value because the hydroquinone is combustible at high temperature;
step three, a shaking stage: the shaking device 10 is driven by the air heating device 4 and can drive the elastic inner container 9 to shake back and forth appropriately, so that white hydroquinone crystals adsorbed on the elastic inner container 9 are shaken off, and atomized hydroquinone in the elastic inner container 9 can be fully contacted with high-temperature air through the shaking of the elastic inner container 9, and the drying efficiency is improved.
In this embodiment, to treat that dry hydroquinone solution lets in pan feeding pipe 2, spout inside barrel 1 through atomizer 3, air heater unit 4 lets in the barrel 1 inside with outside air through heating pressurization, moisture in the hydroquinone after the atomizing is heated rapid evaporation and is the gaseous state, hydroquinone dehydration forms white crystallization and is taken out by receiving material whirlwind 8 toper discharge gate 6 of below and collects, air heater unit 4 can utilize the pressure of air flow in-process when letting in, drive shake device 10 operation, because hydroquinone high temperature is combustible, air temperature after the drive is accomplished lets in barrel 1 inside and accomplishes drying action after falling suitable value, shake device 10 receives the drive of air heater unit 4, can drive elastic inner bag 9 and carry out the reciprocal shake of moderate degree, can make atomizing hydroquinone and high temperature hydroquinone in the elastic inner bag 9 through the shake of elastic inner bag 9 when shaking adsorbed hydroquinone white crystallization on elastic inner bag 9, can make atomizing hydroquinone and high temperature in the elastic inner bag 9 through the shake of elastic inner bag 9 The air fully contacts, promotes drying efficiency.
Example 2
Referring to fig. 3-4 and 7-10 to describe embodiment 2, in this embodiment, the embodiment 1 is further described, in the figure, the shaking device 10 includes a plurality of connecting rods 11 rotatably connected with each other two by two, a first rotating shaft 12 is rotatably connected between any two connecting rods 11, one end of the first rotating shaft 12 is rotatably connected with a limiting slider 13, the other end is rotatably connected with a push-pull rod 14, a connecting block 15 fixedly connected with the outer wall of the elastic inner container 9 is fixedly connected to the top end of the push-pull rod 14, a plurality of guide slide rails 16 slidably connected with the limiting slider 13 are fixedly connected in the device groove 5, and a swinging member 17 for driving the push-pull rod 14 to shake the elastic inner container 9 is arranged in the device groove 5.
Referring to fig. 9-10, the swing member 17 shown in the figure includes a second rotating shaft 18 rotatably connected to the device slot 5, a swing rod 19 is fixedly connected to the second rotating shaft 18, telescopic rods 20 are slidably inserted into upper and lower ends of the swing rod 19, the telescopic rods 20 are rotatably connected to one end of the push-pull rod 14, and the air heating device 4 is configured to drive the swing rod 19 to continuously swing back and forth.
Referring to fig. 3 to 6, the illustrated air heating device 4 includes an air inlet pipe 21, an air heater 22 and an air pump 23 are fixedly connected to the air inlet pipe 21, the air inlet pipe 21 is fixedly connected to a first annular pipe 24 communicated with the air inlet pipe 21, the first annular pipe 24 is fixedly connected to a plurality of first branch pipes 25, a plurality of sets of mounting frames 26 are fixedly connected to the device slot 5, and a driving device 27 for driving the swing rod 19 to swing back and forth through high-pressure air in the first branch pipes 25 is disposed on the mounting frames 26.
In this embodiment, the air pump 23 transports an external air pump 23 into the air inlet pipe 21, and the external air pump is heated by the air heater 22 and transported into the first annular pipe 24, and then enters the driving device 27 through the first branch pipe 25, and drives the driving device 27 to operate, so that the oscillating rod 19 continuously oscillates in a reciprocating manner, the upper end and the lower end of the oscillating rod 19 oscillate in opposite directions, the telescopic rod 20 continuously extends and retracts in the oscillating rod 19, and pushes the push-pull rod 14 to move in a horizontal direction, the push-pull rod 14 and the first rotating shaft 12 are subjected to a limiting action of the limiting slider 13 in the guide slide rail 16 to move in the horizontal direction, the push rod drives the connecting block 15 to move, the connecting block 15 drives the elastic liner 9 to oscillate, the elastic liner 9 cannot be simultaneously pulled open and gathered by utilizing the mutual matching and linked oscillation of the plurality of connecting rods 11 forming a parallelogram, when the two sides of the elastic liner 9 are pulled open, in addition, the two sides can be pushed inwards to prevent the elastic inner container 9 from being damaged due to too large pulling.
Example 3
Referring to fig. 5-8 to describe embodiment 3, in this embodiment, to further describe embodiment 1, the driving device 27 in the figure includes a first box 28 and a second box 29 fixedly mounted on the mounting frame 26, one end of the first box 28 and one end of the second box 29 are respectively connected with a first sliding rod 30 and a second sliding rod 31 in a penetrating and sliding manner, the first sliding rod 30 and the second sliding rod 31 are respectively connected with a first metal piston 32 and a second metal piston 33 which are respectively connected with the first box 28 and the second box 29 in a sliding manner, the first box 28 and the second box 29 are both provided with a link 34 which drives the first sliding rod 30 and the second sliding rod 31 to alternately extend and retract through high-pressure air flow in the first branch pipe 25, and the first sliding rod 30 and the second sliding rod 31 are both provided with a connecting piece 35 which drives the second rotating shaft 18 to rotate.
Referring to fig. 7-8, the connecting member 35 shown in the figure includes a driving plate 36 fixedly mounted on one end of the second rotating shaft 18, an i-shaped block 37 is fixedly connected to one end of each of the first sliding rod 30 and the second sliding rod 31, and a locking groove 38 for movably locking the i-shaped block 37 is formed in the driving plate 36.
Referring to fig. 5-8, the linkage member 34 in the figure includes two sets of guide rails 39 respectively fixedly mounted on the first box 28 and the second box 29, two sets of guide rails 39 are slidably connected with magnetic blocks 40 respectively magnetically attracted to the first metal piston 32 and the second metal piston 33, two sets of guide rails 39 are slidably connected with a baffle plate 41, the baffle plate 41 is provided with a communication hole 42, the first box 28 and the second box 29 are both provided with an air inlet 43 and an air outlet 44, the communication hole 42 is used for controlling the opening and closing states of the air inlet 43 and the air outlet 44, the first branch pipe 25 is fixedly connected with the first box 28 and the second box 29, the air inlet 43 is communicated with the first branch pipe 25, and the air outlet 44 is provided with a communicating member 45 for leading the exhausted hot air to the inside of the elastic inner container 9.
Referring to fig. 3-8, the communicating member 45 includes a second annular tube 46 fixedly installed in the device groove 5, a plurality of second branch tubes 47 connected to the second annular tube 46 and communicated with the exhaust port 44, and a plurality of third branch tubes 48 connected to the second annular tube 46 and communicated with the interior of the cylinder 1.
In this embodiment, when high-pressure hot air enters the air inlet 43 of the first box 28 through the first branch pipe 25, at this time, the communicating hole 42 opens the air inlet 43 of the first box 28, the air inlet 43 of the second box 29 is closed, the air pushes the first metal piston 32 to move, the first sliding rod 30 is pulled to drive the i-shaped block 37 to move, the driving plate 36 is pulled to rotate around the second rotating shaft 18, the swinging rod 19 is driven to rotate, the driving plate 36 swings to a certain position and then pushes the baffle plate 41 on the first box 28 to slide, the communicating hole 42 of the baffle plate 41 on the first box 28 slides from being communicated with the air inlet 43 to being communicated with the air outlet 44, meanwhile, the other end of the driving plate 36 drives the i-shaped block 37 on the second sliding rod 31 to move, so that the second metal piston 33 is pulled by the second sliding rod 31 to slide in the second box 29, so that the magnetic block 40 on the second box 29 slides and pushes the baffle plate 41 to slide, the communicating hole 42 of the baffle 41 on the second box 29 is communicated with the exhaust port 44 and then communicated with the air inlet 43, at this time, the air enters the second box 29 through the first branch pipe 25, and then the second sliding rod 31 can be driven to swing the driving plate 36 in the opposite direction, so that the driving plate 36 can swing continuously by reciprocating, the second rotating shaft 18 and the swing rod 19 are driven to swing continuously, the high-temperature gas discharged from the exhaust port 44 flows into the second branch pipe 47, enters the second annular pipe 46, and is discharged into the cylinder 1 through the third branch pipe 48.
It is worth noting that: the positions of the first box 28 and the second box 29 on two sides of the same second rotating shaft 18 are distributed the same, and the numerical directions of the positions of the first box 28 and the second box 29 on two sides of two adjacent second rotating shafts 18 are reversed, so that the swinging directions generated by two adjacent second rotating shafts 18 are opposite, and the whole device is prevented from being stuck.
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 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 (9)
1. A hydroquinone spray drying device is characterized by comprising:
the device comprises a barrel body (1), wherein a feeding pipe (2) is fixedly connected to the top end of the barrel body (1), an atomizing spray head (3) is fixedly connected to one end of the feeding pipe (2), an air heating device (4) is fixedly connected to the barrel body (1), a device groove (5) is formed in the barrel body (1), a conical discharge hole (6) is formed in the bottom end of the device groove (5), a discharge pipe (7) is fixedly connected to the bottom end of the conical discharge hole (6), a material receiving cyclone (8) is fixedly connected to the discharge pipe (7), an elastic inner container (9) is fixedly connected to the device groove (5) in the device groove (5), the top end of the elastic inner container (9) is fixedly connected to the top end of the device groove (5), and the bottom end of the elastic inner container is fixedly connected to the top end of the conical discharge hole (6);
further comprising:
the shaking device (10), the shaking device (10) install in the device groove (5), be used for driving elasticity inner bag (9) shake, will the crystallization that adsorbs on the elasticity inner bag (9) shakes off the while with higher speed the contact between inside atomizing hydroquinone spraying of elasticity inner bag (9) and the high-temperature gas promotes the dry efficiency of hydroquinone in the spraying, air heating device (4) are used for the drive the operation of shaking device (10).
2. A hydroquinone spray drying unit as claimed in claim 1, characterised in that: the shaking device (10) comprises a plurality of connecting rods (11) which are connected in a pairwise rotation mode, any two connecting rods (11) are connected with a first rotating shaft (12) in a rotating mode, one end of the first rotating shaft (12) is connected with a limiting sliding block (13) in a rotating mode, the other end of the first rotating shaft is connected with a push-pull rod (14) in a rotating mode, the top end of the push-pull rod (14) is fixedly connected with a connecting block (15) fixedly connected with the outer wall of the elastic inner container (9), a plurality of guide sliding rails (16) are fixedly connected with the limiting sliding block (13) in the device groove (5) in a sliding mode, and a shaking piece (17) used for driving the push-pull rod (14) to enable the elastic inner container (9) to shake is arranged in the device groove (5).
3. A hydroquinone spray drying unit as claimed in claim 2, characterised in that: the swing piece (17) comprises a second rotating shaft (18) rotatably connected with the device groove (5), a swing rod (19) is fixedly connected to the second rotating shaft (18), telescopic rods (20) are slidably inserted into the upper end and the lower end of the swing rod (19), the telescopic rods (20) are rotatably connected with one end of the push-pull rod (14), and the air heating device (4) is used for driving the swing rod (19) to continuously swing in a reciprocating mode.
4. A hydroquinone spray drying apparatus and method as claimed in claim 3, characterised in that: air heating device (4) include intake pipe (21), fixedly connected with air heater (22) and air pump (23) are gone up in intake pipe (21), intake pipe (21) fixedly connected with first toroidal tube (24) that intake pipe (21) are linked together, a plurality of first minute pipes (25) of fixedly connected with are gone up in first toroidal tube (24), fixedly connected with multiunit mounting bracket (26) in device groove (5), be equipped with on mounting bracket (26) and be used for through high-pressure gas in first minute pipe (25) drives swinging lever (19) carries out reciprocal wobbling drive arrangement (27).
5. A hydroquinone spray drying unit as claimed in claim 4, characterised in that: the driving device (27) comprises a first box body (28) and a second box body (29) which are fixedly installed on the installation frame (26), one end of the first box body (28) and one end of the second box body (29) are respectively connected with a first sliding rod (30) and a second sliding rod (31) in a penetrating mode, the first sliding rod (30) and the second sliding rod (31) are respectively fixedly connected with a first metal piston (32) and a second metal piston (33) which are connected with the first box body (28) and the second box body (29) in a sliding mode, the first box body (28) and the second box body (29) are respectively provided with a linkage piece (34) which drives the first sliding rod (30) and the second sliding rod (31) to alternately stretch out and draw back through high-pressure air flow in the first branch pipe (25), and the first sliding rod (30) and the second sliding rod (31) are respectively provided with a connecting piece (35) which is used for driving the second rotating shaft (18) to rotate.
6. A hydroquinone spray drying unit as claimed in claim 5, wherein: connecting piece (35) including fixed mounting in drive plate (36) of second pivot (18) one end, first slide bar (30) with the equal fixedly connected with worker shape fixture block (37) of one end of second slide bar (31), offer on drive plate (36) and be used for joint groove (38) that worker shape fixture block (37) carry out activity joint.
7. A hydroquinone spray drying unit as claimed in claim 6, characterised in that: the linkage piece (34) comprises two groups of guide rails (39) which are fixedly arranged on the first box body (28) and the second box body (29) respectively, the two groups of guide rails (39) are connected with magnetic blocks (40) which are respectively magnetically attracted with the first metal piston (32) and the second metal piston (33) in a sliding manner, the two groups of guide rails (39) are connected with baffle plates (41) in a sliding manner, communication holes (42) are formed in the baffle plates (41), the first box body (28) and the second box body (29) are respectively provided with an air inlet (43) and an air outlet (44), the communication holes (42) are used for controlling the opening and closing states of the air inlet (43) and the air outlet (44), the first branch pipe (25) is fixedly connected with the first box body (28) and the second box body (29), and the air inlet (43) is communicated with the first branch pipe (25), and a communicating piece (45) for leading exhausted hot air to the interior of the elastic inner container (9) is arranged at the air outlet (44).
8. A hydroquinone spray drying unit as claimed in claim 7, characterised in that: the communicating piece (45) comprises a second annular pipe (46) fixedly installed in the device groove (5), a plurality of second branch pipes (47) communicated with the exhaust port (44) are fixedly connected to the second annular pipe (46), and a plurality of third branch pipes (48) communicated with the interior of the barrel body (1) are fixedly connected to the second annular pipe (46).
9. A process for the spray drying of hydroquinone as claimed in any one of claims 1 to 8, characterized by the fact that it comprises the following steps:
step one, a preparation stage: the hydroquinone solution to be dried is introduced into the feeding pipe (2) and is sprayed into the cylinder (1) through the atomizing nozzle (3), the air heating device (4) heats and pressurizes the outside air and is introduced into the cylinder (1), the moisture in the atomized hydroquinone is heated and quickly evaporated into a gas state, the hydroquinone is dehydrated to form white crystals, and the white crystals are extracted from the conical discharge hole (6) below by the material receiving cyclone (8) for collection;
step two, a driving stage: the air heating device (4) can drive the shaking device (10) to operate by utilizing the pressure in the air flowing process when being introduced, and the air after being driven is introduced into the barrel (1) to complete the drying action after the temperature of the air is reduced to an appropriate value due to the high-temperature combustibility of hydroquinone;
step three, a shaking stage: the shaking device (10) is driven by the air heating device (4) and can drive the elastic inner container (9) to shake in a reciprocating mode appropriately, so that white hydroquinone crystals adsorbed on the elastic inner container (9) are shaken off, and atomized hydroquinone in the elastic inner container (9) can be fully contacted with high-temperature air through shaking of the elastic inner container (9), and drying efficiency is improved.
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| CN202210179508.7A CN114534281B (en) | 2022-02-25 | 2022-02-25 | Spray drying device and method for hydroquinone |
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| CN202210179508.7A CN114534281B (en) | 2022-02-25 | 2022-02-25 | Spray drying device and method for hydroquinone |
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| CN114534281B CN114534281B (en) | 2023-04-25 |
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| CN114534281B (en) | 2023-04-25 |
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