CN213179040U

CN213179040U - Fluidized bed

Info

Publication number: CN213179040U
Application number: CN202022030043.8U
Authority: CN
Inventors: 邵天君
Original assignee: Beijing Goldenteam Technology Co ltd
Current assignee: Beijing Goldenteam Technology Co ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-05-11
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to a fluidized bed, which comprises a fluidized bed, a cyclone separator, a dust removal device, a surface cooling dehumidification preheating unit and a heat exchange unit, wherein an air outlet at the top of the fluidized bed is communicated with an air inlet of the cyclone separator through a pipeline, an air outlet of the cyclone separator is communicated with an air inlet of the dust removal device through a pipeline, an air outlet of the dust removal device is communicated with an air inlet of the surface cooling dehumidification preheating unit through a pipeline, one side of the surface cooling dehumidification preheating unit is provided with an air inlet, and the other side of the surface cooling dehumidification preheating unit is provided with an air exhaust fan; the cold dehumidification of table preheats unit air outlet department and communicates with each other through pipeline and heat exchanger unit air intake, is connected with air intake fan on the pipeline between heat exchanger unit and the cold dehumidification of table preheats the unit, and heat exchanger unit air outlet department communicates with each other through pipeline and fluidized bed, the utility model has the advantages of carry out reutilization to fluidized bed exhaust high temperature gas, reduce energy consumption, improve energy utilization.

Description

Fluidized bed

Technical Field

The utility model relates to a fluidized bed equipment technical field especially relates to a fluidized bed.

Background

The fluidized bed is a drying device which is common in the pharmaceutical industry at present, and the main function of the fluidized bed is to dry wet granules mixed in a wet granulation machine or a continuous granulator. The gas is dehumidified, heated and filtered to form hot air meeting the temperature requirement, and then the hot air is blown into the fluidized bed by the fan to blow the material to a boiling state and exchange heat with the material, so that the aim of drying the material is fulfilled. Meanwhile, hot air in the fluidized bed is continuously discharged by the fan, and is discharged after being filtered by the filtering equipment. Hot air in the existing product is directly discharged after being filtered, a large amount of heat contained in the hot air is wasted, and the energy utilization rate is low.

Therefore, in response to the above disadvantages, it is desirable to provide a fluidized bed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The to-be-solved technical problem of the utility model is to solve the problem that current fluidized bed recovery heat is inefficient.

(II) technical scheme

In order to solve the technical problem, the utility model provides a fluidized bed, including fluidized bed, cyclone, dust collector, table cold dehumidification preheating unit and heat exchanger group, fluidized bed top air outlet department communicates with each other through pipeline and cyclone air intake, cyclone air outlet department communicates with each other through pipeline and dust collector air intake, dust collector air outlet department communicates with each other through pipeline and table cold dehumidification preheating unit air intake, table cold dehumidification preheating unit one side has seted up the air inlet, table cold dehumidification preheating unit opposite side is equipped with exhaust fan; the air outlet of the surface cooling dehumidification preheating unit is communicated with the air inlet of the heat exchange unit through a pipeline, an air inlet fan is connected to the pipeline between the heat exchange unit and the surface cooling dehumidification preheating unit, and the air outlet of the heat exchange unit is communicated with the fluidized bed through a pipeline.

As a further explanation of the present invention, preferably, the surface cooling dehumidification preheating unit is provided with a coil or a fin, hot air in the fluidized bed enters into the coil or the fin, and air sucked from the air inlet passes through the coil or the fin.

As a further explanation of the present invention, it is preferable that a gas filter is provided in the gas inlet.

As to the utility model discloses a further explanation, preferably, the fluidized bed top is equipped with the mechanical tubes, the mechanical tubes bottom is square top for circular shape structure, the mechanical tubes bottom communicates with each other with the fluidized bed top, mechanical tubes bottom length direction is the same with fluidized bed length direction, the mechanical tubes top has linked firmly the intake pipe, and the intake pipe communicates with each other with cyclone.

As right the utility model discloses a further explanation, preferably, the cyclone top has linked firmly the blast pipe, and the blast pipe top stretches out the cyclone and links to each other with dust collector outward, and in the cyclone was stretched into to the blast pipe bottom, the blast pipe bottom had linked firmly the filter mantle, and the filter mantle includes top guard, screen panel and end cover, and the top guard links firmly in the blast pipe bottom, and the screen panel top links firmly with the top guard bottom, and the end cover links firmly in the screen panel bottom, all has seted up a plurality of filtration pore on screen panel and the end cover.

As to the utility model discloses a further explanation, preferably, the overhead guard is round platform form casing, and the screen panel is radius platform form casing, and the screen panel tapering is less than the overhead guard tapering, and screen panel length is greater than overhead guard length.

As a further illustration of the invention, it is preferred that the height of the filter housing is located at one third of the height of the cyclone.

As a further explanation of the present invention, preferably, the cyclone separator under the filter cover is fixedly connected with a spoiler, and the spoiler is provided with a plurality of air holes.

As to the utility model discloses a further explanation, preferably, the spoiler is hemispherical casing, and the spoiler convex surface is towards the end shield, and the spoiler external diameter is less than the end shield external diameter.

As right the utility model discloses a further explanation, preferably, the support has been linked firmly on the spoiler concave surface, and the support bottom links firmly in the discharge gate of cyclone bottom, and the support is fretwork member frame, and support length is greater than cyclone discharge gate length to make the spoiler stretch out outside the cyclone discharge gate.

(III) advantageous effects

The above technical scheme of the utility model has following advantage:

1. the utility model has the advantages that the surface cooling dehumidification preheater is internally provided with the high-temperature air secondary utilization device forming unit, so that the high-temperature gas exhausted by the fluidized bed is secondarily utilized, the energy consumption is reduced, the energy utilization rate is improved, the structure is simple, and the occupied space is reduced;

2. the cyclone separator is internally provided with the filter cover and the spoiler additionally, so that most of dust can be separated from the airflow, and then the dust is further removed by the dust removing device, the dust content of the discharged airflow is reduced to the maximum extent, and the cyclone separator has higher filtering efficiency compared with the conventional cyclone separator.

Drawings

FIG. 1 is a general assembly effect diagram of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view of the cyclone separator of the present invention;

FIG. 4 is a partial cross-sectional view of a cyclone separator of the present invention;

fig. 5 is an enlarged view of a in fig. 4.

In the figure: 1. a fluidized bed; 11. a support leg; 2. a cyclone separator; 21. an air inlet pipe; 22. an exhaust pipe; 3. a filter housing; 31. a top cover; 32. a mesh enclosure; 33. a bottom cover; 34. filtering holes; 4. a spoiler; 41. a support; 42. air holes; 5. a slag bucket; 6. a dust removal device; 7. a surface cooling dehumidification preheating unit; 71. an air inlet; 72. an exhaust fan; 8. a heat exchanger unit; 81. an air intake fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A fluidized bed is combined with a graph 1 and a graph 2 and comprises a fluidized bed 1, a cyclone separator 2, a dust removal device 6, a surface cooling dehumidification preheating unit 7 and a heat exchange unit 8, wherein an air outlet at the top of the fluidized bed 1 is communicated with an air inlet of the cyclone separator 5 through a pipeline, an air outlet of the cyclone separator 5 is communicated with an air inlet of the dust removal device 6 through a pipeline, an air outlet of the dust removal device 6 is communicated with an air inlet of the surface cooling dehumidification preheating unit 7 through a pipeline, an air inlet 71 is formed in one side of the surface cooling dehumidification preheating unit 7, and an air filter is arranged in the air inlet 71 to prevent external solid impurities from being sucked into the surface cooling dehumidification preheating unit 7. An exhaust fan 72 is arranged on the other side of the surface cooling dehumidification preheating unit 7; the air outlet of the surface cooling dehumidification preheating unit 7 is communicated with the air inlet of the heat exchange unit 8 through a pipeline, an air inlet fan 81 is connected to the pipeline between the heat exchange unit 8 and the surface cooling dehumidification preheating unit 7, and the air outlet of the heat exchange unit 8 is communicated with the fluidized bed 1 through a pipeline.

With reference to fig. 1 and 2, after the material is dried by hot air in the fluidized bed 1, the hot air is primarily filtered by the cyclone separator 2 to separate dust with larger particles from air, then the air enters the dust removal device 6 to be secondarily filtered, so that the air passing through the dust removal device 6 does not contain any solid impurities, then the hot air enters the surface cooling, dehumidifying and preheating unit 7, a coil or a fin is arranged in the surface cooling, dehumidifying and preheating unit 7, the hot air in the fluidized bed 1 enters the coil or the fin, the air sucked by the air inlet 71 passes through the coil or the fin, and the hot air in the fluidized bed 1 preheats the cold air sucked from the air inlet 71 and subjected to surface cooling and dehumidifying, so that the temperature of the cold air is increased, the energy consumption of the subsequent heat exchange unit 8 during heating is reduced, and the energy utilization rate of the whole machine is also improved; the hot air to be preheated is discharged out of the unit under the action of the exhaust fan 72, the preheated cold air flows into the heat exchange unit 8 under the action of the air inlet fan 81 to be finally heated, the gas temperature after final heating meets the temperature requirement of the system, finally the hot air enters the fluidized bed 1 through the pipeline, blows the material to boil and exchanges heat with the material, the purpose of drying the material is achieved, the material is dried and then enters the cyclone separator 2 to be filtered, the steps are repeated, the energy consumption can be effectively reduced, the energy utilization rate is improved, through practical use, the total electric energy consumption can be reduced by 22%, and the high-temperature air secondary utilization equipment and the surface cooling dehumidification equipment are used as an integral machine, the structure is simple, and the occupied space is reduced.

With reference to fig. 1 and 3, the top of the fluidized bed 1 is provided with a special pipe, the bottom of the special pipe is a square top and is of a circular structure, the bottom of the special pipe is communicated with the top of the fluidized bed, the length direction of the bottom of the special pipe is the same as that of the fluidized bed, the top of the special pipe is fixedly connected with an air inlet pipe 21, the air inlet pipe 21 is communicated with the cyclone separator 2, the top of the fluidized bed 1 is provided with the reducing special pipe, so that the gas inside the fluidized bed 1 can be uniformly distributed, and the materials in the fluidized bed 1 can be uniformly heated and sufficiently dried.

With reference to fig. 1, 3 and 4, the bottom of the cyclone separator 2 is supported on the ground through the support legs 11, the top of the cyclone separator 2 is fixedly connected with the exhaust pipe 22, the top of the exhaust pipe 22 extends out of the cyclone separator 2 and is connected with the dust removal device 6, the bottom of the exhaust pipe 22 extends into the cyclone separator 2, the bottom of the exhaust pipe 22 is fixedly connected with the filter housing 3, the filter housing 3 is located at one third of the height of the cyclone separator 2, and the upward-spinning gas can be completely guided into the filter housing 3; the filter hood 3 comprises a top hood 31, a mesh enclosure 32 and a bottom hood 33, the top hood 31 is a circular truncated cone-shaped shell, the top hood 31 is fixedly connected to the bottom of the exhaust pipe 22, the mesh enclosure 32 is an inverted circular truncated cone-shaped shell, the top of the mesh enclosure 32 is fixedly connected with the bottom of the top hood 31, the taper of the mesh enclosure 32 is smaller than that of the top hood 31, and the length of the mesh enclosure 32 is larger than that of the top hood 31; the bottom cover 33 is fixedly connected to the bottom of the mesh enclosure 32, and a plurality of filtering holes 34 are formed in the mesh enclosure 32 and the bottom cover 33.

Combine fig. 3, fig. 4, through setting up screen panel 32 and end cover 33 that have filtration pore 34, can play the effect of further filtering dust particle, guarantee to get into the interior impurity content greatly reduced of air in dust collector 6 to dust collector 6 can filter air-purifying completely through electrostatic absorption, avoids follow-up impurity particle wearing and tearing coil pipe or fin inner wall or blocks up the pipeline. And set up the top cover 31 of round platform form, can enlarge the surface area of screen panel 32, can not only avoid impurity to block up the screen panel completely, guarantee in the air normally flows into blast pipe 22, cooperate the screen panel 32 of the round platform form of falling simultaneously, further improve the surface area, the screen panel 32 cambered surface of slope simultaneously can effectively avoid impurity to adhere to, makes the adnexed impurity of caking drop automatically, plays certain self-cleaning effect.

With reference to fig. 4 and 5, a spoiler 4 is fixedly connected to the cyclone separator 2 right below the filter hood 3, the spoiler 4 is a hemispherical shell, a convex surface of the spoiler 4 faces the bottom hood 33, a concave surface of the spoiler 4 is fixedly connected to a support 41, the bottom of the support 41 is fixedly connected to a discharge port at the bottom of the cyclone separator 2, the support 41 is a hollow rod frame, and the length of the support 41 is greater than that of the discharge port of the cyclone separator 2, so that the spoiler 4 extends out of the discharge port of the cyclone separator 2; the outer diameter of the spoiler 4 is smaller than that of the bottom cover 33, the spoiler 4 is provided with a plurality of air holes 42, the air holes 42 and the filter holes 34 are small-diameter pores and are high in distribution density, the caliber of each air hole 42 is slightly larger than that of each filter hole 34, the spoiler 4 with the air holes is arranged, so that the flow direction of rising air flow can be stabilized, the dust falling of the side wall due to the deviation of the upward-rotating air flow is avoided, a certain filtering effect can be achieved, the dust in the upward-rotating air flow is blocked under the spoiler 4, meanwhile, the falling dust particles on the filter cover 3 can be guided to the two sides of the spoiler 4 by utilizing the arc surface, the air holes 42 are prevented from being blocked, and the two purposes are achieved; set up support 41 and not only can support spoiler 4, can also guarantee that dust impurity normally falls to cyclone 2 bottom discharge gate department, wherein can set up slag ladle 5 in discharge gate department in order to collect above-mentioned impurity to the back travel is handled in unison.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. A fluidized bed, characterized by: the device comprises a fluidized bed (1), a cyclone separator (2), a dust removal device (6), a surface cooling dehumidification preheating unit (7) and a heat exchange unit (8), wherein an air outlet at the top of the fluidized bed (1) is communicated with an air inlet of the cyclone separator (2) through a pipeline, an air outlet of the cyclone separator (2) is communicated with an air inlet of the dust removal device (6) through a pipeline, an air outlet of the dust removal device (6) is communicated with an air inlet of the surface cooling dehumidification preheating unit (7) through a pipeline, one side of the surface cooling dehumidification preheating unit (7) is provided with an air inlet (71), and the other side of the surface cooling dehumidification preheating unit (7) is provided with an air exhaust fan (72); the air outlet of the surface cooling dehumidification preheating unit (7) is communicated with the air inlet of the heat exchange unit (8) through a pipeline, an air inlet fan (81) is connected to the pipeline between the heat exchange unit (8) and the surface cooling dehumidification preheating unit (7), and the air outlet of the heat exchange unit (8) is communicated with the fluidized bed (1) through a pipeline.

2. A fluid bed according to claim 1, wherein: a coil pipe or a fin is arranged in the surface cooling dehumidification preheating unit (7), hot air in the fluidized bed (1) enters the coil pipe or the fin, and air sucked by the air inlet (71) passes through the coil pipe or the fin.

3. A fluid bed according to claim 2, wherein: the gas inlet (71) is internally provided with a gas filter.

4. A fluid bed according to claim 1, wherein: fluidized bed (1) top is equipped with the mechanical tubes, the mechanical tubes bottom is square top and is the circular shape structure, the mechanical tubes bottom communicates with each other with fluidized bed (1) top, mechanical tubes bottom length direction is the same with fluidized bed (1) length direction, the mechanical tubes top has linked firmly intake pipe (21), and intake pipe (21) communicate with each other with cyclone (2).

5. A fluid bed according to claim 1, wherein: cyclone (2) top has linked firmly blast pipe (22), blast pipe (22) top stretches out cyclone (2) outer and link to each other with dust collector (6), blast pipe (22) bottom is stretched into in cyclone (2), blast pipe (22) bottom has linked firmly filter mantle (3), filter mantle (3) are including top casing (31), screen panel (32) and end cover (33), top casing (31) link firmly in blast pipe (22) bottom, screen panel (32) top links firmly with top casing (31) bottom, end cover (33) link firmly in screen panel (32) bottom, a plurality of filtration pore (34) have all been seted up on screen panel (32) and end cover (33).

6. A fluid bed according to claim 5, wherein: the top cover (31) is a circular truncated cone-shaped shell, the mesh enclosure (32) is an inverted circular truncated cone-shaped shell, the taper of the mesh enclosure (32) is smaller than that of the top cover (31), and the length of the mesh enclosure (32) is larger than that of the top cover (31).

7. A fluid bed according to claim 5, wherein: the height of the filter cover (3) is positioned at one third of the height of the cyclone separator (2).

8. A fluid bed according to claim 5, wherein: the cyclone separator (2) right below the filter hood (3) is fixedly connected with a spoiler (4), and the spoiler (4) is provided with a plurality of air holes (42).

9. A fluid bed according to claim 8, wherein: the spoiler (4) is a hemispherical shell, the convex surface of the spoiler (4) faces the bottom cover (33), and the outer diameter of the spoiler (4) is smaller than that of the bottom cover (33).

10. A fluid bed according to claim 8, wherein: the concave surface of the spoiler (4) is fixedly connected with a support (41), the bottom of the support (41) is fixedly connected with a discharge port at the bottom of the cyclone separator (2), the support (41) is a hollow rod piece frame, and the length of the support (41) is greater than that of the discharge port of the cyclone separator (2) so that the spoiler (4) extends out of the discharge port of the cyclone separator (2).