CN217410216U

CN217410216U - Fluidized bed exhaust dust pelletizing system

Info

Publication number: CN217410216U
Application number: CN202221278628.4U
Authority: CN
Inventors: 李琳琳; 李晨浩; 张文平
Original assignee: Rushan Dayang Silica Gel Co ltd
Current assignee: Rushan Dayang Silica Gel Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-13
Anticipated expiration: 2032-05-26

Abstract

The utility model provides a fluidized bed exhaust dust pelletizing system, it has solved the not good technical problem of dust pelletizing system effect, and it includes exhaust pipe, cyclone, sack cleaner, draught fan and air compressor. Wherein, the air outlet of the fluidized bed, the exhaust pipe, the cyclone separator and the bag-type dust remover are sequentially connected along the air path. The bag-type dust collector is connected with the induced draft fan and the air compressor through pipelines, and the pipelines are respectively connected with the electromagnetic valve and the pressure detector in series and are all electrically connected with the control system. The utility model discloses in, through at draught fan piping erection solenoid valve, combine the atmospheric pressure detector, can be when perception atmospheric pressure changes automatically regulated pipeline valve to avoid the air compressor air input to be taken away some by the draught fan, can reach better dust removal effect, but wide application in chemical industry technical field.

Description

Fluidized bed exhaust dust pelletizing system

Technical Field

The utility model relates to a chemical industry technical field, in particular to fluidized bed exhaust dust pelletizing system.

Background

In the material baking step, a fluidized bed (also referred to as a fluidized bed) is a reactor in which solid particles are in a state of suspension motion by passing a gas through a granular solid layer and a gas-solid phase reaction process is performed. The method is mainly suitable for the drying process of granular materials, but the exhaust gas of the fluidized bed is mixed with a large amount of dust, and the dust cannot be directly discharged into the atmosphere and needs to be recycled.

The following common problems exist in the existing fluidized bed exhaust gas treatment device:

1. the dust removal effect is not good, and a small amount of dust is mixed in the product, so that the quality problem is easy to occur.

2. Dust is easily generated in the reprocessing process, the environment is polluted, and the operation is harmful to the body of an operator.

3. The dust outside the cloth bag is not cleaned completely, which affects the drying effect. The phenomenon of large water content during discharging is easy to occur.

In view of the above, there is a need for improvements in existing exhaust gas treatment devices.

SUMMERY OF THE UTILITY MODEL

The utility model provides an exhaust device of a fluidized bed with simple structure, high efficiency and practicality, which aims to solve the defects of the prior art.

Therefore, the utility model provides a fluidized bed exhaust dust removal system, which mainly comprises an exhaust pipe, a cyclone separator, a bag-type dust remover, a draught fan and an air compressor;

the air outlet of the fluidized bed is connected with the inlet of the exhaust pipe, and the outlet of the exhaust pipe is connected with the inlet of the cyclone separator; the outlet of the cyclone separator is connected with the inlet of the bag-type dust collector; the bag-type dust collector is connected with the induced draft fan and the air compressor through a pipeline;

the pipelines of the bag-type dust collector and the induced draft fan are connected in series with an electromagnetic valve; the pipeline of the bag-type dust collector and the pipeline of the air compressor are connected in series with a pressure detector;

and the pressure detector and the electromagnetic valve are electrically connected with a control system.

Preferably, the discharge port of the cyclone separator is connected with a particle recovery tank; and the discharge port of the bag-type dust collector is connected with a discharge device.

Preferably, the discharging device is a screw conveyor, the upper part of the discharging device is provided with at least one feeding hole, and the discharging device is connected with a discharging hole of the bag-type dust collector.

Preferably, a level indicator is arranged in a hopper at the lower part of the bag-type dust collector; the level indicator and the discharging device are electrically connected with the control system.

Preferably, an electromagnetic switch valve is installed at a discharge outlet of the bag-type dust collector.

Preferably, the bag-type dust collector is a two-stage bag-type dust collector.

The utility model provides a fluidized bed exhaust dust pelletizing system has following beneficial effect:

the utility model can automatically adjust the pipeline valve when sensing the air pressure change by installing the electromagnetic valve on the pipeline of the draught fan and combining the air pressure detector, thereby avoiding the air input of the air compressor being partially pumped by the draught fan and achieving better dust removal effect; the following practical effects are correspondingly realized:

1. the cloth bag has good dust removal effect, no dust exists in the product, and the product quality is improved;

2. no dust is generated in the reprocessing process of the product, and the working environment is improved;

3. the cloth bag drying device is beneficial to cleaning dust outside the cloth bag, enables the drying effect to be good, and avoids the phenomenon of water in midway of discharging.

Drawings

FIG. 1 is a schematic diagram of the system of the present invention;

the labels in the figure are: 1. the system comprises a fluidized bed, 2. an exhaust pipe, 3. a cyclone separator, 4. a bag-type dust remover, 5. a first pipeline, 6. an induced draft fan, 7. a second pipeline, 8. an air compressor, 9. a pressure detector, 10. an electromagnetic valve, 11. a particle recycling box, 12. a switch electromagnetic valve, 13. a screw conveyor and 14. a dust recycling box.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special provision is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.

A fluidized bed exhaust dust removal system is shown in figure 1 and mainly comprises an exhaust pipe 2, a cyclone separator 3, a bag-type dust remover 4, an induced draft fan 6 and an air compressor 8.

Wherein, the exhaust port of the fluidized bed 1 is connected with the inlet of the exhaust pipe 2. The outlet of the exhaust duct 2 is connected with the inlet of the cyclone separator 3. The outlet of the cyclone separator 3 is connected with the inlet of a bag-type dust collector 4; preferably, the bag-type dust collector 4 in this embodiment is a two-stage bag-type dust collector, and two bag-type dust collecting structures are connected in series in the air flow direction.

The bag-type dust collector 4 is respectively connected with the induced draft fan 6 and the air compressor 8 through pipelines. The pipeline includes first pipeline 5 and second pipeline 7 in this embodiment, and first pipeline 5 intercommunication sack cleaner 4 and draught fan 6 to it has solenoid valve 10 to concatenate on first pipeline 5. The second pipeline 7 is communicated with the bag-type dust collector 4 and the air compressor 8, and the pressure detector 9 is connected on the second pipeline 7 in series. Wherein, the pressure detector 9 and the electromagnetic valve 10 are both electrically connected with the control system. The above arrangement enables the system to control the opening and closing of the first pipe 5 according to the pipe pressure, thereby ensuring the working condition of the air compressor 8.

Preferably, as shown in the figure, the discharge opening of the cyclone 3 is connected with a particle recovery tank 11; the discharge port of the bag-type dust collector 4 is connected with a discharge device. Further, in order to reduce the overall cost, the material discharge device is selected to be the screw conveyor 13 in the embodiment, a dual-purpose mode is adopted, the conveying part is of a closed structure, and two feed inlets are arranged at the upper part of the conveying part and are respectively connected with two discharge outlets of the bag-type dust collector 4. Furthermore, in order to reduce energy consumption and avoid long-term operation of the screw conveyor 13 and lower efficiency, a material level meter is arranged in a lower hopper of the bag-type dust collector 4, and the material level meter and the discharging device are electrically connected with a control system. Therefore, the conveying time interval can be determined according to the quantity of dust particles, and long-time starting is avoided. Correspondingly, considering that dust is accumulated in the discharging device and is not used by equipment, a switching electromagnetic valve 12 is arranged at a discharging opening of the bag-type dust collector 4, and the design is specifically shown in the figure. Similarly, the switch electromagnetic valve 12 is electrically connected with the control system, so that the dust particles are stored in the hopper firstly, when the preset amount is reached, the switch electromagnetic valve 12 is opened, the dust is discharged into the discharging device, the system correspondingly starts the screw conveyor 13, the dust particles are finally pushed into the tail end dust recycling box 14, and the larger particles are collected through the cyclone separator 3 and fall into the particle recycling box 11.

In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.

Claims

1. A fluidized bed exhaust dust removal system is characterized by comprising an exhaust pipe, a cyclone separator, a bag-type dust remover, an induced draft fan and an air compressor;

the pipelines of the bag-type dust collector and the induced draft fan are connected in series with an electromagnetic valve; a pressure detector is connected in series with the pipeline of the bag-type dust collector and the air compressor;

2. The fluid bed exhaust gas dedusting system of claim 1 wherein the discharge outlet of the cyclone is connected to a particle recovery tank; and the discharge port of the bag-type dust collector is connected with a discharge device.

3. The system of claim 2, wherein the discharge device is a screw conveyor, and the upper portion of the discharge device is provided with at least one inlet and is connected with the discharge port of the bag-type dust collector.

4. The fluidized bed exhaust dust removal system according to claim 3, wherein a level gauge is arranged in a lower hopper of the bag-type dust remover; the level indicator and the discharging device are electrically connected with the control system.

5. A fluidized bed exhaust gas dust removal system according to claim 3 or 4, wherein an electromagnetic switch valve is installed at the discharge outlet of the bag-type dust remover.

6. The fluidized bed exhaust gas and dust removal system of claim 1, wherein the bag-type dust remover is a two-stage bag-type dust remover.