CN213230578U

CN213230578U - Pneumatic conveying device

Info

Publication number: CN213230578U
Application number: CN202021982496.4U
Authority: CN
Inventors: 何世琴; 潘德仁; 李志贤
Original assignee: Tianjin Cleansky Environment Protection Technology Co ltd
Current assignee: Tianjin Cleansky Environment Protection Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-05-18
Anticipated expiration: 2030-09-11

Abstract

The application provides a pneumatic conveying device, which comprises a sending pump and a blanking hopper; a feeding valve is connected between the sending pump and the blanking hopper; the blanking hopper is provided with a dredging component; the dredging component comprises a mounting part and a butt joint part which are matched; the mounting part is fixedly mounted on the blanking hopper and communicated with the interior of the blanking hopper; the butt joint part is provided with an air inlet, and a breathable film is arranged between the butt joint part and the installation part. According to the technical scheme provided by the embodiment of the application, the dredging component is used for pressurizing and fluidizing the interior of the blanking hopper, so that ash hardened at the bottom due to natural sedimentation in the blanking hopper can be blown away in time, disturbance is caused by a bridging phenomenon, and the blanking time is shortened; through setting up the ventilated membrane in the mediation subassembly, can guarantee that high-pressure gas normally passes through, can prevent again that the material in the blanking fill from plugging up the air inlet, can effectively improve the stability of blanking.

Description

Pneumatic conveying device

Technical Field

The application relates to the technical field of material conveying, in particular to a pneumatic conveying device.

Background

The pneumatic conveying is to convey granular material in the direction of air flow in a closed pipeline by utilizing the energy of the air flow, and is a specific application of fluidization technology. The pneumatic conveying device has simple structure and convenient operation, can be used for horizontal, vertical or inclined conveying, and can simultaneously carry out physical operations or certain chemical operations such as heating, cooling, drying, airflow classification and the like on materials in the conveying process. The pneumatic conveying is mainly characterized by large conveying capacity, long conveying distance and high conveying speed; it is possible to charge at one location and then discharge at multiple locations. Due to the characteristics of pneumatic transmission, the pneumatic transmission is widely applied to the aspects of powder and granular material transmission, such as departments of electric power, chemical industry, metallurgy, cement, grain and the like.

The blanking end of the existing pneumatic conveying is freely dropped into a sending pump from a blanking hopper, and compressed air is pressurized and fluidized for the sending pump through a conveying air assembly to convey materials to an ash silo. The bottom of the ash in the blanking hopper is easily hardened due to the influence of natural sedimentation, and a bridging phenomenon is formed after the ash is used for a long time, so that the ash cannot freely fall into the sending pump, and the manual treatment is needed at the moment.

This kind of free fall carries the form, carries mobility good, and the material effect that humidity is little can, but has high to the mobility of ash and humidity requirement, and the limitation is big.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it would be desirable to provide a pneumatic conveying apparatus.

The application provides a pneumatic conveying device, which comprises a sending pump and a blanking hopper; a feeding valve is connected between the sending pump and the blanking hopper; the blanking hopper is provided with a dredging component; the dredging component comprises a mounting part and a butt joint part which are matched; the mounting part is fixedly mounted on the blanking hopper and communicated with the interior of the blanking hopper; the butt joint part is provided with an air inlet, and a breathable film is arranged between the butt joint part and the installation part.

Furthermore, the feeding valve is a pneumatic valve and is controlled by an electromagnetic valve; the dredging component is linked with the feeding valve and is also controlled by the electromagnetic valve.

Furthermore, the device also comprises a blanking maintenance valve; the blanking maintenance valve is positioned between the sending pump and the blanking hopper and used for manually processing the blocking materials.

Further, the expansion joint is also included; the expansion joint is positioned between the blanking maintenance valve and the sending pump.

Further, the sending pump is also connected with the gas transmission assembly; the gas transmission assembly is connected with the bottom of the sending pump and connected with the electromagnetic valve in parallel on the gas source pipeline.

The application has the advantages and positive effects that:

according to the technical scheme, the dredging component is used for pressurizing and fluidizing the interior of the blanking hopper, so that ash hardened at the bottom due to natural sedimentation in the blanking hopper can be blown away in time, disturbance is caused by a bridging phenomenon, and the blanking time is shortened; through setting up the ventilated membrane in the mediation subassembly, can guarantee that high-pressure gas normally passes through, can prevent again that the material in the blanking fill from plugging up the air inlet, can effectively improve the stability of blanking.

Drawings

Fig. 1 is a schematic structural diagram of a pneumatic conveying device according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a dredging assembly of the pneumatic conveying device provided by the embodiment of the application.

The text labels in the figures are represented as: 100-a delivery pump; 110-a feed valve; 120-blanking maintenance valve; 130-an expansion joint; 200-a blanking hopper; 210-a mounting portion; 211-a docking station; 212-a gas permeable membrane; 300-a solenoid valve; 400-gas source pipeline.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1 and 2, the present embodiment provides a pneumatic conveying apparatus, which includes a sending pump 100 and a dropping hopper 200; the blanking hopper 200 is fixedly arranged on the sending pump 100, and a dredging component is arranged at one end close to the sending pump 100; the dredging component comprises a mounting part 210 fixedly mounted on the blanking hopper 200 and a butt joint part 211 matched with the mounting part 210; the butt joint part 211 is provided with an air inlet; the air inlet communicates with the interior of the drop hopper 200 through the abutting portion 211 and the flow passage in the mounting portion 210.

In a preferred embodiment, the docking portion 211 is detachably connected to the mounting portion 210 via a flange; a breathable film 212 is also arranged between the two flanges; the gas permeable membrane 212 can ensure that high-pressure gas normally passes through, and can prevent materials from entering the gas inlet to cause gas inlet blockage.

In a preferred embodiment, the sending pump 100 is further provided with a feeding valve 110 at one end close to the blanking hopper 200, the feeding valve 110 is a pneumatic valve, and the switch is controlled by a solenoid valve 300; the solenoid valve 300 is connected to the air supply pipe 400.

In a preferred embodiment, the unblocking assembly also controls the air intake through the solenoid valve 300, and is linked with the feed valve 110; the solenoid valve 300 is connected to an air inlet.

In a preferred embodiment, a blanking service valve 120 is further installed between the blanking hopper 200 and the sending pump 100, and when a hardening or bridging phenomenon occurs in the blanking hopper 200, the blanking service valve 120 can be opened to manually dredge the blanking hopper.

In a preferred embodiment, the blanking service valve 120 is connected to the dispensing pump 100 by an expansion joint 130.

In a preferred embodiment, the sending pump 100 is further provided with a gas transmission assembly for pressurized fluidization; one end of the gas transmission assembly is connected with the bottom of the sending pump 100, and the other end is connected with the solenoid valve 300 in parallel on the gas source pipeline 400.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. A pneumatic conveying device, characterized by comprising a sending pump (100) and a blanking hopper (200); a feeding valve (110) is connected between the sending pump (100) and the blanking hopper (200); a dredging component is arranged on the blanking hopper (200); the dredging component comprises a matched installation part (210) and a butt joint part (211); the mounting part (210) is fixedly mounted on the blanking hopper (200) and communicated with the interior of the blanking hopper (200); be equipped with the air inlet on butt joint portion (211), with be equipped with ventilated membrane (212) between installation department (210).

2. A pneumatic conveying device according to claim 1, characterised in that the inlet valve (110) is a pneumatic valve, controlled by a solenoid valve (300); the dredging component is linked with the feeding valve (110) and is also controlled by the electromagnetic valve (300).

3. The pneumatic conveying device according to claim 1, further comprising a blanking service valve (120); the blanking maintenance valve (120) is located between the sending pump (100) and the blanking hopper (200) and used for manually processing the blocking materials.

4. A pneumatic conveying apparatus according to claim 3, further comprising an expansion joint (130); the expansion joint (130) is located between the blanking service valve (120) and the sending pump (100).

5. A pneumatic conveying device according to claim 2, characterised in that the sending pump (100) is also connected to a gas conveying assembly; the gas transmission assembly is connected with the bottom of the sending pump (100) and is connected with the electromagnetic valve (300) in parallel on the gas source pipeline (400).