CN217490803U - Fluidized bed filter equipment - Google Patents

Abstract

The utility model discloses a fluidized bed filtering device, which belongs to the technical field of fluidized beds and aims to solve the problems that the filtering effect is poor, the raw materials cannot be pre-filtered to remove impurities, some products after reaction are easy to be discharged along with air flow, the air inlet flow is not stable enough, and the loss of a solid particle layer is large; through the arrangement of the first filter screen, the filter disc, the second filter screen, the dedusting particle layer and the bag type dust collector, triple filtration and impurity removal can be carried out on the entering, conveying and discharging of the flowing medium, so that the reaction effect is prevented from being influenced by impurities such as dust, and the products and solid particle powder after the reaction are prevented from being discharged along with the air flow; through the setting of uniform flow board, air intake, air outlet and collecting vat, can make flowing medium keep even and stable transport, can collect simultaneously between the solid particle, between solid particle and the fluidized bed inner wall, constantly collide the powder that the friction and produce between solid particle and the flowing medium, reduce the loss of solid particle layer.

Description

Fluidized bed filter equipment

Technical Field

The utility model relates to a fluidized bed technical field specifically is a fluidized bed filter equipment.

Background

A fluidized bed, referred to as a fluidized bed for short, is a reactor which utilizes gas or liquid to pass through a granular solid layer to make solid particles in a suspension motion state and perform a gas-solid phase reaction process or a liquid-solid phase reaction process. When used in gas-solid systems, it is also called ebullated bed. The fluidized bed comprises a bulk fluidized bed and a poly fluidized bed (bubbling bed, turbulent bed and fast bed). The fluidized bed has high heat transfer efficiency, the temperature in the bed is easy to maintain uniform, a large amount of solid particles can be conveniently conveyed, and the fine particles can eliminate the internal diffusion resistance and fully exert the efficiency of the catalyst. In order to avoid the discharge of the reaction product from the air outlet at the top of the fluidized bed along with the air flow, a filtering device is usually disposed at the top of the fluidized bed to filter the air flow, and the filtered air is discharged through the air outlet.

Present fluidized bed filter equipment has certain drawback when using, mostly only adopt single filter screen to filter, the filter effect is relatively poor, can not filter the edulcoration in advance to the raw materials that get into the fluidized bed, the resultant after some reactions is along with the air current discharge easily, and the air inlet air current of fluidized bed is stable inadequately, lack the even structure of flowing, simultaneously between the solid particle, between solid particle and the fluidized bed inner wall, the powder that continuous collision friction produced between solid particle and the flowing medium is blown away easily, solid grained layer loss is great.

SUMMERY OF THE UTILITY MODEL

In view of the problems in the prior art, the utility model discloses a fluidized bed filtering device, which adopts the technical proposal that the device comprises a fluidized bed body, a first feeding hole and a discharging hole, wherein the bottom of the fluidized bed body is provided with the first feeding hole, the top of the fluidized bed body is provided with the discharging hole, a solid particle layer is arranged inside the fluidized bed body, the bottom of the solid particle layer is provided with a flow equalizing plate, a flowing medium can be uniformly and stably conveyed through the arrangement of the flow equalizing plate, the bottom of the flow equalizing plate is provided with a plurality of air inlets, the top of the flow equalizing plate is provided with a plurality of air outlets, the flowing medium can be collected at the air inlets and uniformly guided out from the air outlets through the arrangement of the air inlets and the air outlets, a collecting groove is arranged inside the flow equalizing plate, and the solid particles can be collected through the arrangement of the collecting groove, the device comprises a fluidized bed body, wherein solid particles and powder generated by continuous collision and friction between the solid particles and a flowing medium are arranged between the inner wall of the fluidized bed body, the loss of the solid particle layer is reduced, a first filter screen is arranged between an air inlet and a collecting tank, the flowing medium can be filtered again through the arrangement of the first filter screen, the falling powder is prevented from falling from the air inlet, a filter disc is arranged below an uniform flow plate, a second filter screen is arranged inside the filter disc, a dedusting particle layer is arranged below the filter disc, the flowing medium entering the fluidized bed body can be filtered and decontaminated through the arrangement of the filter disc, the second filter screen and the dedusting particle layer, the reaction effect is prevented from being influenced by impurities such as dust, a bag-type dust collector is arranged above the solid particle layer, and the resultant and the solid particle powder after reaction can be shielded and filtered through the arrangement of the bag-type dust collector, avoiding discharge with the air flow.

As a preferred technical scheme of the utility model, one side at fluidized bed body middle part is provided with the second feed inlet, through the setting of second feed inlet, can supply the flowing medium.

As an optimal technical scheme of the utility model, the top that one side of fluidized bed body is located second feed inlet and bag collector is provided with the blowback tuber pipe, through the setting of blowback tuber pipe, can blow off the reactant and the solid particle powder on bag collector surface.

As a preferred technical scheme of the utility model, the air intake is the toper, the air outlet is squarely, one air intake and four air outlet intercommunications, and the medium that flows can be collected to conical air intake, and the square air outlet can guarantee that the medium that flows evenly carries.

As a preferred technical scheme of the utility model, spider web shape through-hole has been seted up to the inside of filter disc, inside the second filter screen was located spider web shape through-hole, through the setting of spider web shape through-hole, can the easy to assemble second filter screen.

As the utility model discloses a preferred technical scheme, the collecting vat is the V-arrangement, first filter screen is located the inside wall of collecting vat, and the solid particle powder that drops can be collected to the collecting vat of V-arrangement.

As a preferred technical scheme of the utility model, the dust removal grained layer is located the exit end of first feed inlet, and the dust removal grained layer can filter the edulcoration in advance to flowing medium.

The utility model has the advantages that: the utility model discloses a cooperation setting of first filter screen, filter disc, second filter screen, dust removal grained layer and bag collector, filter disc, second filter screen and dust removal grained layer can carry out the edulcoration of filtering in advance to the mobile medium that gets into fluidized bed body inside, avoid impurity such as dust to influence the reaction effect, first filter screen can carry out secondary filtration to mobile medium to the powder of avoiding dropping drops from the air intake, bag collector can shelter from the filtration to the resultant after the reaction and solid particle powder, avoid discharging along with the air current; through the cooperation setting of uniform flow board, air intake, air outlet and collecting vat, when can making flowing medium pass through the uniform flow board, follow the leading-in square air outlet of conical air intake to make flowing medium keep even and stable the carrying, the collecting vat can collect simultaneously between the solid particle, between solid particle and the fluidized bed inner wall, constantly bump the friction and the powder that produces between solid particle and the flowing medium, reduce the loss of solid particle layer.

Drawings

FIG. 1 is a schematic view of the cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the flow equalizing plate of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is a schematic view of the filter disc of the present invention.

In the figure: 1. a fluidized bed body; 2. a first feed port; 3. a discharge port; 4. a layer of solid particles; 5. a flow homogenizing plate; 6. an air inlet; 7. an air outlet; 8. collecting tank; 9. a first filter screen; 10. a filter tray; 11. a second filter screen; 12. a dust removal particle layer; 13. a bag type dust collector; 14. a second feed port; 15. a blowback air pipe; 16. a web-like through-hole.

Detailed Description

Example 1

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 4, the utility model discloses a fluidized bed filtering device, which adopts the technical scheme that the fluidized bed filtering device comprises a fluidized bed body 1, a first feeding hole 2 and a discharging hole 3, wherein the bottom of the fluidized bed body 1 is provided with the first feeding hole 2, the top of the fluidized bed body 1 is provided with the discharging hole 3, the fluidized bed body 1 is internally provided with a solid particle layer 4, when the fluidized bed body 1 is used, a flowing medium enters the fluidized bed body 1 from the first feeding hole 2 and is discharged from the discharging hole 3 after being reacted by the solid particle layer 4, the bottom of the solid particle layer 4 is provided with a uniform flow plate 5, the bottom of the uniform flow plate 5 is provided with a plurality of air inlets 6, the top of the uniform flow plate 5 is provided with a plurality of air outlet collecting grooves 7, the flowing medium enters the uniform flow plate 5 from the air inlets 6 and is uniformly and stably discharged from the air outlets 7, the uniform flow plate 5 is internally provided with 8, between the solid particle, between solid particle and fluidized bed body 1 inner wall, constantly collide the friction between solid particle and the flowing medium and the powder that produces falls into inside collecting vat 8 to reduce solid particle layer 4's loss, be provided with first filter screen 9 between air intake 6 and the collecting vat 8, first filter screen 9 filters flowing medium once more, the below of flow equalizing plate 5 is provided with filter disc 10, filter disc 10's inside is provided with second filter screen 11, filter disc 10's below is provided with dust removal particular layer 12, and filter disc 10, second filter screen 11 and dust removal particular layer 12 filter in advance the dust removal to flowing medium, solid particle layer 4's top is provided with bag collector 13, and bag collector 13 filters the resultant and the solid particle powder after the reaction.

As the utility model discloses a preferred technical scheme, one side at fluidized bed body 1 middle part is provided with second feed inlet 14, utilizes second feed inlet 14 can supply the fluid medium.

As an optimal technical scheme of the utility model, the top that one side of fluidized bed body 1 is located second feed inlet 14 and bag collector 13 is provided with blowback tuber pipe 15, opens blowback tuber pipe 15 and can blow off the reactant and the solid particle powder on bag collector 13 surface.

As a preferred technical scheme of the utility model, air intake 6 is the toper, air outlet 7 is squarely, one air intake 6 and four air outlet 7 intercommunications, and flow medium collects at conical air intake 6 to evenly stabilize the discharge from square air outlet 7.

As an optimized technical solution of the present invention, the inside of the filter disc 10 has been provided with the spider web-shaped through hole 16, and the second filter screen 11 is located inside the spider web-shaped through hole 16.

As a preferred technical scheme of the utility model, collecting vat 8 is the V-arrangement, first filter screen 9 is located collecting vat 8's inside wall, and the solid particle powder that drops is collected to V-arrangement's collecting vat 8, reduces the loss.

As a preferred technical scheme of the utility model, dust removal grained layer 12 is located the exit end of first feed inlet 2, and dust removal grained layer 12 filters the edulcoration in advance to the mobile medium of the exit end of first feed inlet 2.

The utility model discloses a theory of operation: when the fluidized bed body 1 is used, the flowing medium enters the fluidized bed body 1 from the first feed port 2, the flowing medium can be supplemented by the second feed port 14, the flowing medium at the outlet end of the first feed port 2 is subjected to pre-filtration and impurity removal by the dedusting particle layer 12 and the second filter screen 11 in the filter disc 10, then the flowing medium enters the uniform flow plate 5 from the conical air inlet 6 and is uniformly and stably discharged from the square air outlet 7, between solid particles, between the solid particles and the inner wall of the fluidized bed body 1, powder generated by continuous collision and friction between the solid particles and the flowing medium falls into the V-shaped collecting tank 8, the powder is reacted by the solid particle layer 4 and filtered by the bag type dust collector 13 and then is discharged from the discharge port 3, the bag type dust collector 13 filters out the reacted product and solid particle powder, and further, the reactant and the solid particle powder on the surface of the bag type dust collector 13 can be blown off by opening the back blowing pipe 15.

The mechanical connection of the present invention is a conventional means used by those skilled in the art, and can be suggested by a limited number of tests, which belong to the common knowledge.

Components not described in detail herein are prior art.

Although the specific embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations that do not have creative work are still within the scope of the present invention.

Claims (7)

1. The utility model provides a fluidized bed filter equipment, includes fluidized bed body (1), first feed inlet (2) and discharge gate (3), the bottom of fluidized bed body (1) is provided with first feed inlet (2), the top of fluidized bed body (1) is provided with discharge gate (3), its characterized in that: the fluidized bed is characterized in that a solid particle layer (4) is arranged inside the fluidized bed body (1), a flow homogenizing plate (5) is arranged at the bottom of the solid particle layer (4), a plurality of air inlets (6) are formed in the bottom of the flow homogenizing plate (5), a plurality of air outlets (7) are formed in the top of the flow homogenizing plate (5), a collecting tank (8) is arranged inside the flow homogenizing plate (5), a first filter screen (9) is arranged between the air inlets (6) and the collecting tank (8), a filter disc (10) is arranged below the flow homogenizing plate (5), a second filter screen (11) is arranged inside the filter disc (10), a dust removal particle layer (12) is arranged below the filter disc (10), and a bag type dust collector (13) is arranged above the solid particle layer (4).

2. A fluid bed filter assembly according to claim 1 wherein: and a second feeding hole (14) is formed in one side of the middle part of the fluidized bed body (1).

3. A fluid bed filter assembly as set forth in claim 1 wherein: and a blowback air pipe (15) is arranged on one side of the fluidized bed body (1) above the second feed port (14) and the bag-type dust collector (13).

4. A fluid bed filter assembly as set forth in claim 1 wherein: the air inlet (6) is conical, the air outlet (7) is square, and the air inlet (6) is communicated with the four air outlets (7).

5. A fluid bed filter assembly as set forth in claim 1 wherein: the inside of filter disc (10) has seted up spider web shape through-hole (16), second filter screen (11) are located inside spider web shape through-hole (16).

6. A fluid bed filter assembly as set forth in claim 1 wherein: the collecting groove (8) is V-shaped, and the first filter screen (9) is positioned on the inner side wall of the collecting groove (8).

7. A fluid bed filter assembly as set forth in claim 1 wherein: the dust removal particle layer (12) is positioned at the outlet end of the first feed inlet (2).

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