Pneumatic transmission device

Abstract

The invention discloses a pneumatic transmission device which comprises a hopper (1), wherein the hopper (1) is communicated with a feed inlet (30) of a dispatching can (3) through a feed inlet valve (2), an air inlet (31) of the dispatching can is communicated with an air supply (5) through an air inlet valve (4), and a discharge hole (32) of the dispatching can (3) is communicated with a feed bin (8) through a feed outlet valve (6); and the device also comprises a baffle (33) installed in the dispatching can, and an extrusion assembly (34) which is driven by a dynamic element to approach or leave far from the baffle (33). When the baffle fully shields the discharge hole, the baffle is provided with a plurality of through holes (331) along the air flow direction. The periphery of the through holes, which is opposite to the extrusion assembly (34), is provided with a cutting edge protruding the baffle. The pneumatic transmission device has the function of crashing hardened particles and strong cutting ability to the hardened particles, and moreover, the pneumatic transmission device can treat the hardened particles through a simple structure, thereby simplifying the technical process, and saving the production cost.

Description

technical field [0001] The invention relates to the technical field of material conveying, in particular to a pneumatic conveying device. Background technique [0002] With the rapid development of my country's economic construction, pneumatic conveying is more and more widely used in various fields of economic construction due to its advantages of environmental protection, low energy consumption, and small footprint. [0003] Pneumatic conveying, also known as airflow conveying, is a conveying method that utilizes the energy of airflow to convey granular materials along the direction of airflow in a closed pipeline. application. The pneumatic conveying device has a relatively simple structure and is easy to operate. It can be used for horizontal, vertical or inclined conveying. During the conveying process, it can also perform physical operations such as heating, cooling, drying and air classification of materials or certain chemical operations. . [0004] A typical pneu...

AI Technical Summary

Problems solved by technology

[0005] Pneumatic conveying implements material conveying by exerting pneumatic force on the conveyed material through the airflow to push the material to move. The pneumatic conveying device provides a limited amount of air force. When the quality of the conveyed material is too large, the air force cannot push the material to move, so , the current pneumatic conveying devices generally can only convey dry and uniform particle size powder and granular materials

For materials containing hardened particles, due to the large mass, different shapes and sizes of hardened particles, these particles are easy to accumulate in the pipeline after entering the pipeline, blocking the pipeline, and these particles are transported to the terminal silo. , It will also cause arching in the terminal silo and poor feeding

The pneumatic conveying device itself does not have the ability to handle materials containing compacted particles. In order to enable the materials containing larger compacted particles to be conveyed by the pneumatic conveying device, a screening device is usually installed above the feed inlet of the sending tank of the pneumatic conveying device. , separate the hardened particles, and then process the separated hardened particles separately. The process is more complicated, time-consuming and labor-intensive; there is also a pulverizer installed above the feeding port of the sending tank of the pneumatic conveying device, so that the conveyed materials can be transported first. After being crushed by the pulverizer, it enters the sending tank, but the vibration of the pulverizer is relatively large, the noise is high, and its size is large, it is inconvenient to repair and maintain, and the investment cost is also high.

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