CN111735277A - Fluidized bed system - Google Patents

Fluidized bed system Download PDF

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Publication number
CN111735277A
CN111735277A CN202010549525.6A CN202010549525A CN111735277A CN 111735277 A CN111735277 A CN 111735277A CN 202010549525 A CN202010549525 A CN 202010549525A CN 111735277 A CN111735277 A CN 111735277A
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CN
China
Prior art keywords
sampling
conical surface
fluidized bed
bed system
push rod
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Pending
Application number
CN202010549525.6A
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Chinese (zh)
Inventor
方正
方策
连朋生
王忠兴
李挺
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Zhejiang Canaan Technology Ltd
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Zhejiang Canaan Technology Ltd
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Publication date
Application filed by Zhejiang Canaan Technology Ltd filed Critical Zhejiang Canaan Technology Ltd
Priority to CN202010549525.6A priority Critical patent/CN111735277A/en
Publication of CN111735277A publication Critical patent/CN111735277A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/06—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried
    • F26B3/08—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour flowing through the materials or objects to be dried so as to loosen them, e.g. to form a fluidised bed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/001—Handling, e.g. loading or unloading arrangements
    • F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/005—Treatment of dryer exhaust gases
    • F26B25/007—Dust filtering; Exhaust dust filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/009—Alarm systems; Safety sytems, e.g. preventing fire and explosions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids
    • G01N2001/1012—Suspensions
    • G01N2001/1018—Gas suspensions; Fluidised beds
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N1/14—Suction devices, e.g. pumps; Ejector devices
    • G01N2001/1418—Depression, aspiration

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Microbiology (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The invention relates to the technical field of fluidized beds, and particularly discloses a fluidized bed system which comprises an air processing unit, a cylinder body, a dust removal unit and a fan, wherein the air processing unit is communicated with the cylinder body through an air inlet pipe, the cylinder body is communicated with the dust removal unit through an air outlet pipe, the fan is connected to the outlet of the dust removal unit, the cylinder body comprises a plurality of sequentially communicated cylinder parts, a sealing structure is arranged at the joint of every two adjacent cylinder parts, and a vacuum feeding hole, a vacuum discharging structure and a closed sampler are arranged on the cylinder body. By adopting the structure, the fully-sealed fluidized bed system with good tightness, no opening and no leakage point is provided.

Description

Fluidized bed system
Technical Field
The invention relates to the technical field of fluidized beds, in particular to a fluidized bed system.
Background
Currently, occupational Exposure limit oel (occupational Exposure limit) is the ending limit for occupational hazards, and refers to the level of Exposure that is acceptable for workers to repeatedly expose for extended periods of time during a professional activity without causing acute or chronic adverse health to the body.
Meanings of OEB 4: 10 is more than OEL and is more than or equal to 1μg/m3. I.e. less than 10% of the material which is harmful to health and is touched by the laborerμg/m3。
The fluidized bed system in the prior art has insufficient tightness, and each procedure has the leakage problem, so that the fluidized bed system is not favorable for the physical health of workers. For example, a connecting gap exists on the cylinder body, the discharging mode is not sealed, the sampling port is arranged in an open mode, and the like.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a fully-sealed fluidized bed system which has good tightness and no opening or leakage point.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a fluidized bed system, includes air handling unit, cylinder body, dust removal unit and fan, air handling unit passes through the air-supply line intercommunication with the cylinder body, and the cylinder body is through going out tuber pipe intercommunication with the dust removal unit, the exit at the dust removal unit is connected to the fan, the cylinder body is including a plurality of jar portions that communicate in proper order, and the junction of two adjacent jar portions is provided with seal structure, be provided with vacuum feed inlet, vacuum ejection of compact structure and airtight sampler on the cylinder body.
In the technical scheme, the wall thickness of the cylinder body is thickened, the strength of the cylinder body is guaranteed to withstand 10bar, and compared with a traditional 2bar explosion venting mode, the cylinder body has two advantages that firstly, materials cannot leak to the outside of equipment; secondly, the equipment cylinder body has no leakage and explosion opening, and the inner wall is smooth and easy to clean.
According to the further arrangement of the invention, the sealing structure comprises an upper flange and a lower flange which are arranged on two adjacent cylinder parts, an inflatable sealing ring is arranged between the upper flange and the lower flange, and two corresponding sides of the upper flange and the lower flange are provided with anti-explosion buttons.
In the technical scheme, the joints among the cylinder parts are sealed by the inflatable sealing rings, and the upper flange and the lower flange are provided with the anti-explosion buttons which can be locked after being installed in place.
As a further arrangement of the invention, the anti-explosion buckle is L-shaped, one end of the anti-explosion buckle is fixedly connected to the upper flange or the lower flange, and the other end of the anti-explosion buckle is hooked on the lower flange or the upper flange to realize clamping connection.
Among the above-mentioned technical scheme, the one end of explosion-proof knot sets up with last flange or lower flange is integrative, and intensity is improved, and the other end trip is on lower flange or last flange, with going up the flange and the inseparable knot of lower flange together, avoids revealing.
As a further arrangement of the invention, the explosion-proof buttons on the two sides are arranged in a central symmetry manner.
Among the above-mentioned technical scheme, the buckling force that explosion-proof buckle provided becomes opposite direction's symmetrical force, and the lock is more firm reliable.
As a further arrangement of the vacuum discharging device, the cylinder parts are respectively a cylinder body, a turning plate material cylinder and a funnel-shaped caching cylinder, the vacuum discharging structure comprises a material turning plate which is rotatably arranged in the turning plate material cylinder and used for receiving materials, the turning plate material cylinder is communicated with the caching cylinder, a vacuum discharging port and an air supplementing port opposite to the vacuum discharging port are arranged on the caching cylinder, and the air supplementing port is communicated with an air inlet pipe through an air supplementing pipe.
Among the above-mentioned technical scheme, material after will drying during the ejection of compact turns over the board and falls into the buffer memory jar in, is taken out next procedure by the negative pressure and carries out whole grain again, and whole material transfer process is all inclosed, and no powder leaks, and compare in traditional tee bend type vacuum ejection of compact moreover, turns over the ejection of compact that the board ejection of compact can significantly reduce and remain, and the vacuum source of this vacuum discharge gate is provided by butt joint equipment, and the tonifying qi mouth is followed the tuber pipe induced air in the middle of air handling unit and the host computer through the tonifying qi pipe to guarantee that whole equipment is airtight.
As a further arrangement of the invention, the air inlet pipe and the air outlet pipe are both provided with one-way quick shut-off valves.
Among the above-mentioned technical scheme, in the position of air-supply line and play tuber pipe, respectively be equipped with a one-way quick shutoff valve, when detecting the interior malleation of tuber pipe, can realize quick closing, when the unexpected explosion takes place, strike the separation with the explosion in fluidized bed equipment, prevent that the explosion from strikeing the equipment that leads to the fact the damage to tuber pipe front and back butt joint to guarantee that the material in the fluidized bed can not leak, reach whole airtight requirement.
As a further arrangement of the invention, the closed sampler comprises a sampling cylinder body with a sampling channel, a sampling valve rod arranged on the sampling channel and a sampling tube arranged on the side edge of the sampling cylinder body and communicated with the sampling channel, wherein the sampling valve rod can move along the axial direction of the sampling cylinder body to enable the end part of the sampling valve rod to form plugging setting or deblocking setting with the inlet of the sampling cylinder body, a plugging structure forming plugging setting or deblocking setting with the outlet of the sampling tube is arranged on the sampling tube, a sampling bottle is detachably connected onto the sampling tube, a first sampling cavity is arranged on the sampling bottle and communicated with the sampling tube, and a closed structure forming plugging setting or deblocking setting with the inlet of the first sampling cavity is arranged on the first sampling cavity.
Among the above-mentioned technical scheme, the sampler among the prior art, the sampling bottle is uncovered, and the sample censorship in-process material all can expose in the external world, and the airtight sampler of this design, borrows alpha beta valve principle for reference, and both ends mouth are closed after the separation, and furthest reduces the material and spreads to the external world, the contact of separation operating personnel and material.
As a further arrangement of the present invention, the sealing structure includes a first push rod penetrating through the first sampling cavity, one end of the first push rod can be hermetically matched with the inlet of the first sampling cavity to form a blocking end, the other end of the first push rod extends out of the first sampling cavity to form a driving end, the first push rod is sleeved with a first return spring, one end of the first return spring abuts against a first convex ring arranged on the inner wall of the first sampling cavity, the other end of the first return spring abuts against a second convex ring arranged on the driving end, and the first return spring drives the blocking end to be hermetically connected with the inlet of the first sampling cavity.
As a further arrangement of the invention, the blocking structure comprises a second push rod arranged in the sampling tube and a supporting part fixed on the inner wall of the sampling tube, one end of the second push rod can be connected with the outlet of the sampling tube in a sealing way to form a blocking end, the other end of the second push rod is connected with the supporting part through a second reset spring to form a connecting end, and the second reset spring drives the blocking end to be in sealing fit with the outlet of the sampling tube and is also abutted against the first push rod to form linkage arrangement.
In the technical scheme, the first push rod penetrates through the first convex ring and is in sealing connection with the first convex ring through the sealing ring, the first push rod can move along the axial direction of the first push rod, when sampling is needed, force is acted on the driving end to push the first push rod to move, so that the plugging end and the inlet of the first sampling cavity are unplugged, at the moment, the second push rod is abutted against the first push rod, when the first push rod moves, the second push rod can also move along with the first push rod, the plugging end and the outlet pushed by sampling are unplugged, materials can conveniently come out of the sampling pipe and enter the first sampling cavity, when the materials enter the first sampling cavity, the driving force is removed, the first push rod is reset under the action of the first reset spring to enable the plugging end to be plugged at the inlet of the first sampling cavity again, leakage of the materials in the first sampling cavity is avoided, the second push rod is reset under the action of the second reset spring to be plugged at the outlet of the sampling pipe again, make the sampling tube be in confined state again, then take off the sampling bottle and examine, whole process is closed operation entirely, and furthest reduces the material and spreads to the external world, the contact of separation operating personnel and material, and second reset spring and first reset spring are the pressure spring.
As a further arrangement of the invention, the space between the support part and the outlet of the sampling tube forms a second sampling cavity, and the support part is provided with a through hole for communicating the second sampling cavity and the sampling tube.
Among the above-mentioned technical scheme, in order to process the block structure conveniently, the other part components of a whole that can function independently setting up constitution sampling bottle joint that this part that will have the block structure and sampling tube, the sampling bottle passes through clamp or flange joint with the pipe wall that has the sampling tube, can also be other fixed connection's such as welding modes, sampling bottle joint and sampling bottle pass through clamp or flange etc. and realize detachable and connect, the setting of through-hole is that the material in the sampling tube can get into second sample chamber.
As a further arrangement of the invention, the supporting part comprises a supporting block for the second return spring to abut against and a connecting rod for fixing the supporting block on the sampling tube, and a gap is formed between the circumferential surface of the supporting block and the inner wall of the sampling tube to form the through hole.
Among the above-mentioned technical scheme, the supporting shoe passes through the connecting rod unsettled in second sample intracavity, and preferred connecting rod is located the corresponding both sides of supporting shoe, and certainly can also be several more, only need reserve the through-hole can.
As a further arrangement of the present invention, the supporting block includes a conical head portion and a cylindrical tail portion, a bottom surface of the head portion faces the tail portion and is integrally connected with the tail portion, the tail portion is provided with a cavity into which the second push rod is inserted, and the second return spring is located between the bottom surface of the cavity and the second push rod.
Among the above-mentioned technical scheme, the conical setting of head is in order to play the effect of direction, avoids the supporting part to obstruct the passage of material, and the internal diameter of cavity and the external diameter adaptation of second push rod, second push rod inlay and establish in the cavity, and the cavity has the effect of direction again to the second push rod spacing effect.
As a further arrangement of the invention, a first conical surface and a second conical surface which are mutually matched are respectively arranged between the blocking end of the second push rod and the outlet of the sampling tube, the inclination angles of the first conical surface and the second conical surface are consistent, and the second push rod is driven by the second return spring to move towards the direction close to the first push rod so that the first conical surface is abutted against the second conical surface.
In the technical scheme, the blocking end is in blocking fit with the outlet of the sampling tube, so a contact surface is required between the blocking end and the outlet of the sampling tube, the contact surface is a first conical surface and a second conical surface, the contact surface is arranged in a conical surface mode, the blocking end can be abutted against the inner wall of the outlet of the sampling tube more closely and reliably, and the end with the smaller diameter on the second conical surface faces the sampling bottle.
As a further arrangement of the present invention, a third conical surface and a fourth conical surface which are mutually adapted are respectively arranged between the blocking end of the first push rod and the inlet of the first sampling cavity, the inclination angles of the third conical surface and the fourth conical surface are the same, and the first push rod is driven by the first return spring to move in the direction away from the second push rod so that the third conical surface abuts against the fourth conical surface.
Among the above-mentioned technical scheme, because the shutoff end is the shutoff cooperation with the entry of first sample chamber, so must have the contact surface between the two, and this contact surface is third conical surface and fourth conical surface promptly, and the contact surface becomes the conical surface setting, enables inseparabler reliable of the inner wall butt of shutoff end and first sample chamber entrance, and the great one end of diameter is towards the sampling bottle joint on the fourth conical surface.
As a further arrangement of the present invention, the diameter of the larger end of the third conical surface is equal to or smaller than the diameter of the smaller end of the second conical surface.
In the technical scheme, the plugging end needs to enter the sampling bottle joint to push the second push rod, the plugging end is in a circular truncated cone shape, and the third conical surface is the peripheral surface of the circular truncated cone shape, so that the maximum diameter of the plugging end is smaller than or equal to the minimum diameter of the second conical surface.
According to the invention, a fifth conical surface and a sixth conical surface which are mutually matched are respectively arranged between one end of the sampling valve rod and the inlet of the sampling cylinder, the other end of the sampling valve rod extends out of the sampling cylinder to form a handle, the inclination angles of the fifth conical surface and the sixth conical surface are consistent, a third return spring is sleeved on the sampling valve rod, one end of the third return spring is abutted against a first convex part arranged on the inner wall of the sampling cylinder, the other end of the third return spring is abutted against a second convex part arranged on the outer peripheral surface of the sampling valve rod, and the fifth conical surface is driven by the third return spring to move along the axial direction of the fifth conical surface so that the fifth conical surface is abutted against the sixth conical surface.
In the technical scheme, when sampling and detecting high-activity medicines such as anti-tumor medicines, hormone medicines, sensitization medicines and the like, the exposure of powder needs to be strictly avoided, the harm to health of operators is prevented, when sampling, a sampling valve rod is pushed inwards or pulled outwards, the inlet end of a sampling cylinder body is opened, namely a valve port is opened, the powder enters the sampling cylinder body from a storage bin, flows to a sampling pipe through a sampling channel, finally falls into a second sampling cavity, a handle is loosened, the sampling valve rod resets under the action of a third reset spring, the valve port is closed, a first push rod is pushed upwards to drive a second push rod to move upwards together, the opening of a sampling bottle is opened, the powder falls into the first sampling cavity, the driving end is loosened, the first push rod and the second push rod reset under the combined action of the first reset spring and the second reset spring, the opening of the bottle is closed, a clamp is loosened, the sampling bottle is taken down, both, thereby guaranteeing that the operator does not contact the medicine powder in the sampling and inspecting process.
As a further arrangement of the invention, the end part of the sampling cylinder body opposite to the inlet thereof is covered with a cover plate, and the handle penetrates through the cover plate to be exposed.
Among the above-mentioned technical scheme, preferred apron becomes sealed cooperation with the sample valve pole, avoids the material to reveal.
As a further configuration of the present invention, a partition is provided in the sampling passage of the sampling cylinder, and the sampling valve rod penetrates through the partition and is in sealing engagement therewith, so that the partition constitutes the first protrusion.
Among the above-mentioned technical scheme, the baffle passes through sealing washer sealing connection with the sample valve rod, further avoids the material to reveal, has double seal on the sample passage, improves the seal among the sample process.
As a further arrangement of the invention, the cylinder body comprises a top cylinder and a middle cylinder, the cleaning unit comprises a cleaning pipe which penetrates through the top cylinder and extends to the middle cylinder, and a plurality of nozzles are arranged on the cleaning pipe.
Among the above-mentioned technical scheme, the cleaning unit among the prior art has more washing dead angle and is not conform to the operation flow of high airtight requirement, and the scavenge pipe is fixed inside the cylinder body, has solved and has inserted external cleaning gun and be difficult to handle the disadvantage that the dust exposes in the installation among the prior art.
According to the further arrangement of the invention, the cleaning unit comprises 4 first cleaning holes arranged on the top cylinder, the number of the first cleaning holes is uniformly distributed along the circumferential direction of the top cylinder, and the first cleaning holes are connected with water pipes.
Among the above-mentioned technical scheme, the top jar encircles there are 4 cleaning points, can wash the part surface of all easy residual materials, realizes wasing the full coverage.
As a further arrangement of the invention, the cleaning unit comprises second cleaning holes arranged on the vacuum feeding hole and the vacuum discharging hole and third cleaning holes arranged on the air inlet pipe and the air outlet pipe, and water pipes are connected to the second cleaning holes and the third cleaning holes.
Among the above-mentioned technical scheme, set up the cleaning point at vacuum feed inlet and vacuum discharge gate, dismantle the washing after the deactivation of business turn over material pipeline, set up the cleaning point on air-supply line and the play tuber pipe, need wash the deactivation before dismantling.
As a further arrangement of the invention, the dust removal unit comprises a middle-effect dust removal cabinet and a high-efficiency dust removal cabinet which are connected with each other, the middle-effect dust removal cabinet is communicated with the air outlet pipe, the high-efficiency dust removal cabinet is communicated with the fan, and filter cartridges in the middle-effect dust removal cabinet and the high-efficiency dust removal cabinet are both provided with isolation bags.
Among the above-mentioned technical scheme, configured F9+ H13 doublestage and filtered, the dismouting of straining a section of thick bamboo adopts bag to advance the bag and goes out the technique, will strain a section of thick bamboo and put into the median and take out the dust removal cabinet after putting into the median soon, washs good back, puts into the dust removal cabinet after putting into the median with straining a section of thick bamboo, has solved the problem that the dismouting process inhales powder.
The invention is further described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a general schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of an embodiment I of the present invention;
FIG. 3 is an enlarged, fragmentary view of an embodiment II of the present invention;
FIG. 4 is a sectional view of a closed sampler for sampling according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view of a closed sampler in the absence of sampling in accordance with an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a sampling bottle according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a cylinder according to an embodiment of the present invention.
Detailed Description
The specific embodiment of the invention is shown in fig. 1-7, and the fluidized bed system comprises an air processing unit 1, a cylinder body 2, a dust removal unit 3 and a fan 4, wherein the air processing unit 1 is communicated with the cylinder body 2 through an air inlet pipe 5, the cylinder body 2 is communicated with the dust removal unit 3 through an air outlet pipe 6, the fan 4 is connected at an outlet of the dust removal unit 3, the cylinder body 2 comprises a plurality of cylinder parts which are sequentially communicated, a sealing structure 7 is arranged at the joint of two adjacent cylinder parts, and a vacuum feed port 21, a vacuum discharge structure 22 and a closed sampler 23 are arranged on the cylinder body 2. The wall thickness of the cylinder body 2 is thickened, the strength of the cylinder body 2 is guaranteed to withstand 10bar, and compared with a traditional 2bar explosion venting mode, the cylinder body has two advantages that firstly, materials cannot leak to the outside of equipment; secondly, the equipment cylinder body 2 has no explosion venting port, and the inner wall is smooth and easy to clean.
The sealing structure 7 comprises an upper flange 71 and a lower flange 72 which are arranged on two adjacent cylinder parts, an inflation sealing ring 73 is arranged between the upper flange 71 and the lower flange 72, an inflation nozzle 731 is arranged on the inflation sealing ring 73, and two corresponding sides of the upper flange 71 and the lower flange 72 are provided with anti-explosion buckles 74. The joints between the cylinder parts are sealed by air-filled sealing rings 73, and explosion-proof buckles 74 are arranged on the upper flange 71 and the lower flange 72 and can be locked with each other after being installed in place.
The anti-explosion buckle 74 is L-shaped, one end of the anti-explosion buckle 74 is fixedly connected to the upper flange 71 or the lower flange 72, and the other end of the anti-explosion buckle is hooked on the lower flange 72 or the upper flange 71 to realize clamping. One end of the explosion-proof buckle 74 is integrally arranged with the upper flange 71 or the lower flange 72, so that the strength is improved, and the other end of the explosion-proof buckle is clamped on the lower flange 72 or the upper flange 71, so that the upper flange 71 and the lower flange 72 are tightly buckled together, and the leakage is avoided.
The explosion-proof buttons 74 on the two sides are arranged in a central symmetry mode. The snap-fit force provided by the blast-resistant button 74 is symmetrical and opposite in direction, and the snap-fit is more secure and reliable.
The cylinder parts are respectively a cylinder body 24, a turning plate material cylinder 25 and a funnel-shaped buffer cylinder 26, the vacuum discharging structure 22 comprises a material turning plate 251 which is rotatably arranged in the turning plate material cylinder 25 and used for receiving materials, the turning plate material cylinder 25 is communicated with the buffer cylinder 26, a vacuum discharging port 261 and an air supplementing port 262 opposite to the vacuum discharging port 261 are arranged on the buffer cylinder 26, and the air supplementing port 262 is communicated with the air inlet pipe 5 through an air supplementing pipe 263. During the ejection of compact with the material after the drying turn over the board 251 and fall into buffer cylinder 26 in, take out next process by the negative pressure and carry out the whole grain, whole material transfer process is airtight, no powder leaks, and compare in traditional tee bend type vacuum ejection of compact moreover, turn over the board ejection of compact and can significantly reduce the ejection of compact and remain, the vacuum source of this vacuum discharge gate 261 is provided by butt joint equipment, air supplement port 262 passes through air supplement pipe 263 and draws in from the air duct in the middle of air handling unit 1 and the host computer to guarantee that whole equipment is airtight.
The air inlet pipe 5 and the air outlet pipe 6 are both provided with one-way quick shut-off valves 51 and 61. The positions of the air inlet pipe 5 and the air outlet pipe 6 are respectively provided with a one-way quick shut-off valve 51 and a one-way quick shut-off valve 61, so that when positive pressure in the air pipe is detected, quick shut-off can be realized, when accidental explosion occurs, the explosion is impacted and blocked in fluidized bed equipment, the damage to the equipment which is butted front and back of the air pipe due to explosion impact is prevented, the leakage of materials in the fluidized bed is avoided, and the integral sealing requirement is met.
As shown in fig. 4-6, the closed sampler 23 includes a sampling cylinder 231 having a sampling passage 2311, a sampling valve rod 232 disposed on the sampling passage 2311, and a sampling tube 233 disposed on a side of the sampling cylinder 231 and communicated with the sampling passage 2311, wherein the sampling valve rod 232 can move axially along the sampling cylinder 231 to enable an end portion thereof to form a plugging setting or a deblocking setting with an inlet of the sampling cylinder 231, the sampling tube 233 is provided with a plugging structure forming a plugging setting or a deblocking setting with an outlet thereof, the sampling tube 233 is detachably connected with a sampling bottle 234, the sampling bottle 234 is provided with a first sampling cavity 2341, the first sampling cavity 2341 is communicated with the sampling tube 233, and the first sampling cavity 2341 is provided with a sealing structure forming a plugging setting or a deblocking setting with an inlet thereof. In the sampler in the prior art, the sampling bottle 234 is open, materials can be exposed outside in the sampling and inspection process, and the closed sampler 23 of the design uses the alpha beta valve principle for reference, and the two ports are closed after separation, so that the materials are furthest prevented from being diffused outside and the contact between an operator and the materials is blocked.
Above-mentioned airtight structure includes wears to establish first push rod 2342 on first sample chamber 2341, the one end of first push rod 2342 can constitute shutoff end 2342a with the sealed cooperation of the entry of first sample chamber 2341, and first sample chamber 2341 constitutes drive end 2342b is stretched out to the other end, the cover is equipped with first reset spring 2343 on the first push rod 2342, and the one end butt of this first reset spring 2343 is on setting up first bulge loop 2344 on the inner wall of first sample chamber 2341, and the other end butt is on setting up the second bulge loop 2345 on drive end 2342b, first reset spring 2343 drive shutoff end 2342a and the entry sealing connection of first sample chamber 2341.
The blocking structure comprises a second push rod 2331 arranged in the sampling tube 233 and a supporting part 2332 fixed on the inner wall of the sampling tube 233, one end of the second push rod 2331 can be connected with the outlet of the sampling tube 233 in a sealing way to form a blocking end 2331a, the other end is connected with the supporting part 2332 through a second return spring 2333 to form a connecting end 2331b, and the second return spring 2333 drives the blocking end 2331a to be matched with the outlet of the sampling tube 233 in a sealing way and is abutted against the first push rod 2342 to form linkage. The first push rod 2342 penetrates through the first convex ring 2344 and is in sealing connection with the first convex ring 2344 through the sealing ring 01, the first push rod 2342 can move axially, when sampling is needed, force is applied to the driving end 2342b to push the first push rod 2342 to move, the blocking end 2342a is unblocked from the inlet of the first sampling cavity 2341, at the moment, the second push rod 2331 abuts against the first push rod 2342, when the first push rod 2342 moves, the second push rod 2331 also moves along with the movement, the blocking end 2331a is unblocked from the outlet pushed by sampling, the material can conveniently come out of the sampling pipe 233 to enter the first sampling cavity 2341, after the material enters the first sampling cavity 2341, the driving force is removed, the first push rod 2342 is reset under the action of the first reset spring 2343, the blocking end 2342a is reset to block the inlet of the sampling pipe 2341, the material in the first sampling cavity 2341 is prevented from leaking, and the second push rod 2341 is reset under the action of the reset spring 2333, the reset outlet of the second push rod 2333, the sampling tube 233 is in a closed state again, then the sampling bottle 234 is taken down for inspection, the whole process is totally closed operation, the diffusion of materials to the outside is reduced to the maximum extent, the contact between operators and the materials is blocked, and the second return spring 2333 and the first return spring 2343 are compression springs.
The space between the support portion 2332 and the outlet of the sampling tube 233 constitutes a second sampling chamber 2334, and the support portion 2332 is provided with a through hole 2335 communicating the second sampling chamber 2334 and the sampling tube 233. In order to facilitate processing of the blocking structure, the portion with the blocking structure and the other portion of the sampling tube 233 are separately arranged to form a sampling bottle connector 235, the sampling bottle connector 235 is connected with the tube wall with the sampling tube 233 through a clamp or a flange, or may be fixedly connected through welding or other fixing methods, the sampling bottle connector 235 is detachably connected with the sampling bottle 234 through a clamp or a flange, and the through hole 2335 is arranged so that the material in the sampling tube 233 can enter the second sampling chamber 2334.
The support portion 2332 includes a support block 2336 against which the second return spring 2333 abuts and a connection rod 2337 for fixing the support block 2336 to the sampling tube 233, and a gap is formed between a circumferential surface of the support block 2336 and an inner wall of the sampling tube 233 to constitute the through hole 2335. The support block 2336 is suspended in the second sampling chamber 2334 by connecting rods 2337, preferably the connecting rods 2337 are located at the corresponding two sides of the support block 2336, but there may be more than one, and only the through holes 2335 are left.
The support block 2336 includes a conical head 2336a and a cylindrical tail 2336b, the bottom surface of the head 2336a faces the tail 2336b and is integrally connected to the tail 2336b, a cavity 2336c for inserting the second push rod 2331 is formed on the tail 2336b, and the second return spring 2333 is positioned between the bottom surface of the cavity 2336c and the second push rod 2331. The head 2336a is conically arranged to guide the material to prevent the support 2332 from obstructing the passage of the material, the inner diameter of the cavity 2336c is matched with the outer diameter of the second push rod 2331, the second push rod 2331 is embedded in the cavity 2336c, and the cavity 2336c has both guiding and limiting functions on the second push rod 2331.
A first conical surface 2331c and a second conical surface 2338 which are matched with each other are respectively arranged between the blocking end 2331a of the second push rod 2331 and the outlet of the sampling tube 233, the inclination angles of the first conical surface 2331c and the second conical surface 2338 are consistent, and the second push rod 2331 is driven by a second return spring 2333 to move towards the direction close to the first push rod 2342 so that the first conical surface 2331c is abutted against the second conical surface 2338. Because the blocking end 2331a is in blocking fit with the outlet of the sampling tube 233, a contact surface is required between the blocking end 2331a and the outlet of the sampling tube 233, the contact surface is a first conical surface 2331c and a second conical surface 2338, the contact surfaces are arranged in a conical manner, so that the blocking end 2331a can be abutted with the inner wall of the outlet of the sampling tube 233 more tightly and reliably, and the end with the smaller diameter on the second conical surface 2338 faces the sampling bottle 234.
A third conical surface 2342c and a fourth conical surface 2346 which are matched with each other are respectively arranged between the blocking end 2342a of the first push rod 2342 and the inlet of the first sampling cavity 2341, the inclination angles of the third conical surface 2342c and the fourth conical surface 2346 are consistent, and the first push rod 2342 is driven by the first return spring 2343 to move in the direction away from the second push rod 2331, so that the third conical surface 2342c abuts against the fourth conical surface 2346. Because the blocking end 2342a is in blocking fit with the inlet of the first sampling cavity 2341, a contact surface is required between the blocking end 2342a and the first sampling cavity 2341, the contact surface is a third conical surface 2342c and a fourth conical surface 2346, the contact surface is arranged in a conical surface, the blocking end 2342a can be abutted against the inner wall of the inlet of the first sampling cavity 2341 more tightly and reliably, and the end with the larger diameter on the fourth conical surface 2346 faces the sampling bottle joint 235.
The diameter of the larger end of the third conical surface 2342c is equal to or smaller than the diameter of the smaller end of the second conical surface 2338. Since the blocking end 2342a needs to enter the sampling bottle adapter 235 to push the second push rod 2331, and the blocking end 2342a is in a truncated cone shape, the third conical surface 2342c is the peripheral surface of the truncated cone shape, so the maximum diameter of the blocking end 2342a is smaller than or equal to the minimum diameter of the second conical surface 2338.
A fifth conical surface 2321 and a sixth conical surface 2312 which are matched with each other are respectively arranged between one end 2322 of the sampling valve rod 232 and the inlet of the sampling cylinder 231, the other end of the sampling valve rod extends out of the sampling cylinder 231 to form a handle 2323, the inclination angles of the fifth conical surface 2321 and the sixth conical surface 2312 are consistent, a third return spring 2324 is sleeved on the sampling valve rod 232, one end of the third return spring 2324 abuts against a first convex portion 2313 arranged on the inner wall of the sampling cylinder 231, the other end of the third return spring 2324 abuts against a second convex portion 2325 arranged on the outer circumferential surface of the sampling valve rod 232, the second convex portion 2325 is formed by a nut and a gasket, and the fifth conical surface 2321 is driven by the third return spring 2324 to move along the axial direction to enable the fifth conical surface 2321 to abut against the sixth conical surface 2312. When the high-activity medicines such as anti-tumor medicines, hormone medicines, sensitization medicines and the like are sampled and detected, the exposure of the medicine powder is strictly avoided, the harm to health of operators is prevented, when the sampling is carried out, the sampling valve rod 232 is pushed inwards or pulled outwards, the inlet end of the sampling cylinder 231 is opened, namely the valve port is opened, the medicine powder enters the sampling cylinder 231 from the storage bin, flows to the sampling pipe 233 through the sampling channel 2311, finally falls into the second sampling cavity 2334, the handle 2323 is loosened, the sampling valve rod 232 is reset under the action of the third reset spring 2324, the valve port is closed, the first push rod 2342 is pushed upwards to drive the second push rod 2331 to move upwards together, the mouth of the sampling bottle 234 is opened, the medicine powder falls into the first sampling cavity 2341, the driving end is loosened 2342b, the first push rod 2342 and the second push rod 2331 are reset under the combined action of the first reset spring 2343 and the second reset spring 2333, the mouth, both ends are closed, and no powder remains on the end face, so that operators do not contact the powder in the sampling and inspection process.
The end of the sampling cylinder 231 opposite to the inlet thereof is covered with a cover plate 2314, and the handle 2323 is exposed through the cover plate 2314. The preferred cover plate 2314 is in sealing engagement with the sampling valve stem 232 to prevent leakage of material.
A partition 2313 is provided in the sampling passage 2311 of the sampling cylinder 231, and the sampling valve rod 232 passes through the partition 2313 and is in sealing engagement therewith, so that the partition 2313 constitutes the first protrusion 2313. Baffle 2313 and sample valve rod 232 pass through sealing washer 2315 sealing connection, further avoid the material to reveal, have double seal on the sample passageway 2311, improve the seal among the sample process.
The fluidized bed system further comprises a cleaning unit, the cylinder body 24 comprises a top cylinder 241 and a middle cylinder 242, the cleaning unit comprises a cleaning pipe 243 extending to the middle cylinder 242 through the top cylinder 241, and a plurality of nozzles are arranged on the cleaning pipe 243. The cleaning unit in the prior art has more cleaning dead angles and does not conform to the operation process of high airtight requirement, and the cleaning pipe 243 is fixed inside the cylinder body 24, so that the defect that dust exposure is difficult to process in the installation process due to the fact that an external cleaning gun needs to be inserted in the prior art is solved.
The cleaning unit comprises 4 first cleaning holes 2411 arranged on the top cylinder 241, wherein the number of the first cleaning holes 2411 is 4, and the first cleaning holes 2411 are uniformly distributed along the circumferential direction of the top cylinder 241 and are connected with water pipes 2412. The top cylinder 241 is surrounded by 4 cleaning points, which can wash the surfaces of all parts which are easy to remain materials, thereby realizing cleaning and full coverage.
The cleaning unit comprises a second cleaning hole formed in the vacuum feeding hole 21 and the vacuum discharging hole 261 and a third cleaning hole formed in the air inlet pipe 5 and the air outlet pipe 6, and water pipes are connected to the second cleaning hole and the third cleaning hole. Cleaning points are arranged at the vacuum feeding hole 21 and the vacuum discharging hole 261, the feeding and discharging pipelines are disassembled and cleaned after being inactivated, the air inlet pipe 5 and the air outlet pipe 6 are provided with cleaning points, and cleaning and inactivation are needed before disassembly.
The dust removal unit 3 comprises a middle-effect dust removal cabinet 31 and a high-efficiency dust removal cabinet 32 which are connected with each other, the middle-effect dust removal cabinet 31 is communicated with an air outlet pipe 6, the high-efficiency dust removal cabinet 32 is communicated with a fan 4, and filter cartridges in the middle-effect dust removal cabinet 31 and the high-efficiency dust removal cabinet 32 are provided with isolation bags. F9+ H13 double-stage filtration is configured, the filter cartridge is disassembled and assembled by adopting a bag-in bag-out technology, namely, the filter cartridge is put into the isolation belt and then taken out of the dust removal cabinet, and after the filter cartridge is cleaned, the filter cartridge is put into the isolation belt and then put into the dust removal cabinet, so that the problem of medicine powder suction in the disassembly and assembly process is solved.
The present invention is not limited to the above embodiments, and those skilled in the art can implement the present invention in other embodiments according to the disclosure of the present invention, or make simple changes or modifications on the design structure and idea of the present invention, and fall into the protection scope of the present invention.

Claims (22)

1. The utility model provides a fluidized bed system, includes air handling unit, cylinder body, dust removal unit and fan, air handling unit passes through the air-supply line intercommunication with the cylinder body, and the cylinder body is through going out tuber pipe intercommunication with the dust removal unit, the exit at the dust removal unit is connected to the fan, its characterized in that: the cylinder body is provided with vacuum feed inlet, vacuum ejection of compact structure and airtight sampler including a plurality of jar portions that communicate in proper order, and the junction of two adjacent jar portions is provided with seal structure, be provided with vacuum feed inlet, vacuum ejection of compact structure on the cylinder body.
2. The fluidized bed system of claim 1, wherein: the sealing structure comprises an upper flange and a lower flange which are arranged on two adjacent cylinder parts, an inflatable sealing ring is arranged between the upper flange and the lower flange, and two corresponding sides of the upper flange and the lower flange are provided with an anti-explosion buckle.
3. The fluidized bed system of claim 2, wherein: the anti-explosion buckle is L-shaped, one end of the anti-explosion buckle is fixedly connected to the upper flange or the lower flange, and the other end of the anti-explosion buckle is hooked on the lower flange or the upper flange to realize clamping.
4. The fluidized bed system of claim 3, wherein: the explosion-proof buttons on the two sides are arranged in a centrosymmetric manner.
5. The fluidized bed system of any one of claims 1-4, wherein: the cylinder portion is the cylinder body respectively, turns over board material jar and leaks hopper-shaped buffer memory jar, vacuum ejection of compact structure turns over the board including the material that the rotation setting is used for accepting the material in turning over board material jar, turn over board material jar and buffer memory jar intercommunication, be provided with vacuum discharge gate and the mend wind gap relative with the vacuum discharge gate on the buffer memory jar, mend the wind gap and pass through the mend tuber pipe and communicate with the air-supply line.
6. The fluidized bed system of any one of claims 1-4, wherein: and the air inlet pipe and the air outlet pipe are both provided with one-way quick shutoff valves.
7. The fluidized bed system of any one of claims 1-4, wherein: airtight sampler including the sample barrel that has sampling passageway, set up the sample valve rod on sampling passageway and set up the side of taking a sample the barrel and with the sampling tube of sampling passageway intercommunication, the axial displacement that the sample valve rod can follow the sample barrel makes its tip constitute shutoff setting or deblocking setting with the entry of taking a sample the barrel, be provided with on the sampling tube and constitute the block structure that shutoff setting or deblocking set up rather than exporting, can dismantle on the sampling tube and be connected with the sampling bottle, be provided with first sample chamber on the sampling bottle, first sample chamber and sampling tube intercommunication, be provided with on the first sample chamber and constitute the enclosed construction that shutoff setting or deblocking set up rather than the entry.
8. The fluidized bed system of claim 7, wherein: the airtight structure includes the first push rod of wearing to establish on first sample chamber, the one end of first push rod can constitute the shutoff end with the sealed cooperation of the entry in first sample chamber, and the other end stretches out first sample chamber and constitutes the drive end, the cover is equipped with first reset spring on the first push rod, and this first reset spring's one end butt is on setting up the first bulge loop on the inner wall in first sample chamber, and the other end butt is on setting up the second bulge loop on the drive end, the entry sealing connection in first reset spring drive shutoff end and first sample chamber.
9. The fluidized bed system of claim 8, wherein: the blocking structure comprises a second push rod arranged in the sampling tube and a supporting part fixed on the inner wall of the sampling tube, one end of the second push rod can be connected with the outlet of the sampling tube in a sealing mode to form a blocking end, the other end of the second push rod is connected with the supporting part through a second reset spring to form a connecting end, and the second reset spring drives the blocking end to be in linkage with the first push rod in the sealing and matching mode of the outlet of the sampling tube.
10. The fluidized bed system of claim 9, wherein: the space between the export of supporting part to sampling tube constitutes second sample chamber, be provided with the through-hole that communicates second sample chamber and sampling tube on the supporting part.
11. The fluidized bed system of claim 10, wherein: the supporting part comprises a supporting block for the second reset spring to abut against and a connecting rod for fixing the supporting block on the sampling tube, and a gap is formed between the circumferential surface of the supporting block and the inner wall of the sampling tube to form the through hole.
12. The fluidized bed system of claim 11, wherein: the supporting block comprises a conical head and a cylindrical tail, the bottom surface of the head faces the tail and is integrally connected with the tail, a cavity for the second push rod to be inserted is formed in the tail, and the second return spring is located between the bottom surface of the cavity and the second push rod.
13. The fluidized bed system of any one of claims 9-12, wherein: a first conical surface and a second conical surface which are mutually matched are respectively arranged between the blocking end of the second push rod and the outlet of the sampling tube, the inclination angles of the first conical surface and the second conical surface are consistent, and the second push rod moves towards the direction close to the first push rod under the driving of the second reset spring so that the first conical surface is abutted against the second conical surface.
14. The fluidized bed system of claim 13, wherein: and a third conical surface and a fourth conical surface which are mutually matched are respectively arranged between the blocking end of the first push rod and the inlet of the first sampling cavity, the inclination angles of the third conical surface and the fourth conical surface are consistent, and the first push rod is driven by the first return spring to move towards the direction far away from the second push rod so that the third conical surface is abutted against the fourth conical surface.
15. The fluidized bed system of claim 14, wherein: the diameter of the larger end of the third conical surface is equal to or smaller than the diameter of the smaller end of the second conical surface.
16. The fluidized bed system of claim 7, wherein: a fifth conical surface and a sixth conical surface which are mutually matched are respectively arranged between one end of the sampling valve rod and the inlet of the sampling cylinder body, the other end of the sampling valve rod extends out of the sampling cylinder body to form a handle, the inclination angles of the fifth conical surface and the sixth conical surface are consistent, a third return spring is sleeved on the sampling valve rod, one end of the third return spring is abutted against a first convex part arranged on the inner wall of the sampling cylinder body, the other end of the third return spring is abutted against a second convex part arranged on the outer peripheral surface of the sampling valve rod, and the fifth conical surface is abutted against the sixth conical surface along the axial movement of the fifth conical surface under the driving of the third return spring.
17. The fluidized bed system of claim 16, wherein: the upper cover of the end part of the sampling cylinder body opposite to the inlet of the sampling cylinder body is provided with a cover plate, and the handle penetrates through the cover plate to be exposed.
18. The fluidized bed system of claim 16 or 17, wherein: a partition plate is arranged in a sampling channel of the sampling cylinder body, and the sampling valve rod penetrates through the partition plate and is in sealing fit with the partition plate, so that the partition plate forms the first convex part.
19. The fluidized bed system of claim 1, 2, 3, 4, 8, 9, 10, 11, 12, 14, 15, 16, or 17, wherein: still include the cleaning unit, the cylinder body includes top jar and well jar, the cleaning unit is including passing the scavenge pipe that the top jar extended to well jar, be provided with a plurality of nozzle on the scavenge pipe.
20. The fluidized bed system of claim 19, wherein: the cleaning unit is including setting up the first purge orifice on a jar, first purge orifice is 4 circumference evenly distributed along a jar, be connected with the water pipe on the first purge orifice.
21. The fluidized bed system of claim 19, wherein: the cleaning unit comprises a second cleaning hole formed in the vacuum feeding hole and the vacuum discharging hole and a third cleaning hole formed in the air inlet pipe and the air outlet pipe, and water pipes are connected to the second cleaning hole and the third cleaning hole.
22. The fluidized bed system of claim 1, 2, 3, 4, 8, 9, 10, 11, 12, 14, 15, 16, 17, 20, or 21, wherein: the dust removal unit comprises a middle-effect dust removal cabinet and a high-efficiency dust removal cabinet which are connected with each other, the middle-effect dust removal cabinet is communicated with the air outlet pipe, the high-efficiency dust removal cabinet is communicated with the fan, and filter cylinders in the middle-effect dust removal cabinet and the high-efficiency dust removal cabinet are provided with isolation bags.
CN202010549525.6A 2020-06-16 2020-06-16 Fluidized bed system Pending CN111735277A (en)

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Application Number Priority Date Filing Date Title
CN202010549525.6A CN111735277A (en) 2020-06-16 2020-06-16 Fluidized bed system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010549525.6A CN111735277A (en) 2020-06-16 2020-06-16 Fluidized bed system

Publications (1)

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CN111735277A true CN111735277A (en) 2020-10-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010549525.6A Pending CN111735277A (en) 2020-06-16 2020-06-16 Fluidized bed system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114713579A (en) * 2022-03-22 2022-07-08 浙江迦南科技股份有限公司 Wet mixing granulator with stuffy explosion performance and good cleaning effect

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114713579A (en) * 2022-03-22 2022-07-08 浙江迦南科技股份有限公司 Wet mixing granulator with stuffy explosion performance and good cleaning effect

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