CN210192866U

CN210192866U - Fluidized bed returning charge system of preventing agglomerating

Info

Publication number: CN210192866U
Application number: CN201920912028.0U
Authority: CN
Inventors: Yincheng Wang; 王引成
Original assignee: Xinxiang Boyuan Water Purification Material Co Ltd
Current assignee: Xinxiang Boyuan Water Purification Material Co Ltd
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-03-27
Anticipated expiration: 2029-06-18

Abstract

The utility model discloses a fluidized bed returning charge equipment technical field's a fluidized bed returning charge anti-caking system aims at solving the technical problem that the fluidized bed returning charge easily agglomerates, and this system includes fluidized bed, conveying pipeline, return pipe and cyclone, the one end of conveying pipeline and the discharge gate intercommunication of fluidized bed, the other end and cyclone's feed inlet intercommunication, the one end of return pipe and the solid material export intercommunication of cyclone bottom, the other end with stretch into in the fluidized bed, and the swivelling joint has the distributing device, be equipped with in the distributing device with the material room of return pipe intercommunication and with a plurality of branch material passageways of material room intercommunication, the distributing device outside is equipped with the fin. The utility model discloses one end that stretches into in the fluidized bed at the return pipe rotates and is connected with the distributing device, and the distributing device outside is equipped with the fin, drives the distributing device through the fin and rotates, and then evenly spreads the return material in the fluidized bed, has reduced the probability that the return material caking takes place.

Description

Fluidized bed returning charge system of preventing agglomerating

Technical Field

The utility model relates to a fluidized bed returning charge equipment technical field, concretely relates to fluidized bed returning charge prevents caking system.

Background

Fluidized bed means a fluidized bed in which a mass of solid particles is suspended in a moving fluid so that the particles have certain apparent characteristics of the fluid, and this state of solid-to-contact is called solid fluidization. In the production process, the gas discharged from the air outlet of the fluidized bed contains 1/5-1/3 solid materials, and the solid materials need to be separated and sent back to the fluidized bed for continuous fluidization because the solid materials do not reach the fluidization time. As shown in fig. 5, the existing fluidized bed material returning system includes: fluidized bed 1, conveying pipeline 2, cyclone 4 and return pipe 3, the one end of conveying pipeline 2 and the discharge gate intercommunication of fluidized bed 1, the other end and the feed inlet intercommunication of cyclone 4, the one end of return pipe 3 and the solid material export intercommunication of cyclone 4 bottom, the other end and fluidized bed 1 intercommunication, for the convenience of the material returns fluidized bed 1 sometimes, still the intercommunication has material returning fan 11 on the return pipe 3.

Long-term production practices show that under the action of ascending air flow in the fluidized bed, the end part of the return pipe is easy to block due to the fact that the return material at the end part of the return pipe cannot fall in time, and the phenomenon that the return material is caked at the end part of the return pipe can be caused after a long time; even if the returning charge breaks away from the returning charge pipe tip smoothly, because the returning charge is comparatively concentrated and is caused the quality great, the updraft in the fluidized bed is not enough to blow up the returning charge for the returning charge concentrates and gathers in the fluidized bed bottom, and the time of having a specified duration can the caking, influences the normal fluidization of material.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a fluidized bed returning charge prevents caking system to solve the easy technical problem who agglomerates of fluidized bed returning charge.

The utility model discloses the technical scheme who adopts does:

the design is a fluidized bed material returning anti-caking system, which comprises a fluidized bed, a material conveying pipe, a material returning pipe and a cyclone separator, wherein one end of the material conveying pipe is communicated with a discharge hole of the fluidized bed, the other end of the material conveying pipe is communicated with a feed inlet of the cyclone separator, one end of the material returning pipe is communicated with a solid material outlet at the bottom of the cyclone separator, and the other end of the material returning pipe extends into the fluidized bed and is connected with a material distributor.

Preferably, a material chamber communicated with the material returning pipe and a plurality of material distributing channels communicated with the material chamber are arranged in the distributor.

Preferably, the top of the distributor is rotatably connected with the end part of the material returning pipe through a bearing.

Preferably, a material separating cone is arranged in the material chamber and is arranged right below the end part of the material returning pipe.

Preferably, the outer side of the distributing device is provided with a wing, and an included angle between the wing and the horizontal plane is an acute angle.

Preferably, the material distributing channel is an arc-shaped channel.

Compared with the prior art, the utility model has the advantages that:

1. the utility model discloses one end in the return pipe stretches into the fluidized bed is equipped with the distributing device, can evenly scatter the return material in the fluidized bed through this distributing device, has stopped the return material and has assembled in the emergence of a phenomenon in the fluidized bed, has reduced the probability that the return material caking phenomenon takes place.

2. The utility model discloses well distributing device rotates with the returning charge pipe tip to be connected, and the distributing device outside is equipped with the fin, and under the effect of updraft in the fluidized bed, the fin can drive the distributing device and rotate to with comparatively even scattering everywhere in the fluidized bed of returning charge.

3. The utility model discloses be equipped with the branch material awl in the material room of distributing device, this branch material awl can give each branch material passageway with the returning charge fast dispersion that comes by the returning charge pipe tip, stops returning charge blocking phenomenon's emergence in the distributing device, still is favorable to the comparatively even dispersion of returning charge to each branch material passageway simultaneously.

Drawings

Fig. 1 is one of the schematic structural diagrams of the present invention;

FIG. 2 is a schematic structural view of a distributor;

FIG. 3 is a side view of the distributor;

fig. 4 is a second schematic structural diagram of the present invention;

FIG. 5 is a schematic diagram of a prior art configuration;

the device comprises a fluidized bed 1, a material conveying pipe 2, a material returning pipe 3, a cyclone separator 4, a material distributor 5, a bearing 6, a material chamber 7, a material distributing channel 8, a material distributing cone 9, a wing panel 10 and a material returning fan 11.

Detailed Description

The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way. The unit module components, structures, mechanisms, sensors and other devices referred to in the following examples are all conventional and commercially available products unless otherwise specified.

Example 1: as shown in fig. 1-3, a fluidized bed material returning anti-caking system comprises a fluidized bed 1, a material conveying pipe 2, a material returning pipe 3, a cyclone separator 4 and a distributing device 5, wherein one end of the material conveying pipe 2 is communicated with a discharge hole at the top of the fluidized bed 1, the other end of the material conveying pipe 2 is communicated with a feed hole at the top of the cyclone separator 4, one end of the material returning pipe 3 is communicated with a solid material outlet at the bottom of the cyclone separator 4, the other end of the material returning pipe 3 extends into the fluidized bed 4 and is connected with the distributing device 5, the distributing device 5 is integrally disc-shaped, the top of the distributing device 5 is rotatably connected with the end part of the return pipe 3 through a bearing 6, a material chamber 7 and a plurality of material distributing channels 8 are arranged in the distributing device 5, the material chamber 7 is positioned under the end part of the return pipe 3 and is communicated with the end part of the return pipe 3, the feeding end of each material distributing channel 8 is communicated with the material chamber 7, and the discharging end of each material distributing channel is arranged on the outer circumferential wall of the distributing device 5.

In this embodiment, in order to discharge the returned material from the material chamber 7 as soon as possible, a material dividing cone 9 is arranged in the material chamber 7, and the material dividing cone 9 is arranged right below the end of the returned material pipe 3.

In this embodiment, the feed end of the material distribution channel 8 is higher than the discharge end in vertical height.

In this embodiment, in order to distribute the returned material to all positions in the fluidized bed 1, the left and right sides of the distributor 5 are provided with fins 10 in central symmetry, and the included angle between the fins 10 and the horizontal plane is an acute angle.

Example 2: as shown in fig. 4, the fluidized bed material returning anti-caking system of the present embodiment has a structure substantially the same as that of embodiment 1, except that no fin 10 is disposed outside the distributor 5, the material returning pipe 3 is communicated with a material returning fan 11, and the material distributing channel 8 is an arc channel.

The operation and use method of the system is as follows:

after entering a material chamber 7 in the distributor 5, the returned materials are dispersed into each material distribution channel 8 under the action of a material distribution cone 9 and finally scattered to each part in the fluidized bed 1; when the rising air current in the fluidized bed 1 passes through the wing piece 10, because the lower surface of the wing piece 10 is impacted by the air current, the whole distributing device 5 rotates around the axis of the whole distributing device, and the returned material is convenient to scatter everywhere in the fluidized bed 1.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a fluidized bed is expected to return and is prevented caking system, includes fluidized bed, conveying pipeline, return pipe and cyclone, the one end of conveying pipeline and the discharge gate intercommunication of fluidized bed, the other end and cyclone's feed inlet intercommunication, the one end of return pipe and the solid material export intercommunication of cyclone bottom, its characterized in that: the other end of the material return pipe extends into the fluidized bed and is connected with a distributing device.

2. The fluidized bed feed back anti-caking system according to claim 1, characterized in that: and a material chamber communicated with the material returning pipe and a plurality of material distributing channels communicated with the material chamber are arranged in the material distributor.

3. The fluidized bed feed back anti-caking system according to claim 2, characterized in that: the top of the distributing device is rotatably connected with the end part of the material returning pipe through a bearing.

4. The fluidized bed return material anti-caking system according to claim 3, characterized in that: the material chamber is internally provided with a material dividing cone which is arranged under the end part of the material returning pipe.

5. The fluidized bed return material anti-caking system according to claim 4, characterized in that: the outer side of the distributing device is provided with a wing, and an included angle between the wing and the horizontal plane is an acute angle.

6. The fluidized bed return material anti-caking system according to claim 4, characterized in that: the material distributing channel is an arc-shaped channel.