Dense phase pneumatic conveying apparatus for nitrogen

Abstract

The utility model discloses a kind of dilute phase nitrogen circulation pneumatic conveying devices, it is related to pneumatic conveying technical field, and the utility model includes bottom plate, the top of bottom plate is equipped with conveying mechanism, for by dilute phase nitrogen circulation principle to material is conveyed, conveying mechanism includes: feeding assembly includes fixedly installed in the top of bottom plate one side's Roots blower, the low pressure large flow nitrogen of the present application can be provided to venturi injector by Roots blower, venturi injector generates stable negative pressure at feed pipe using venturi effect, powder or granular material in external material storage device is continuously inhaled, and is fully mixed with nitrogen to form dilute phase gas-solid mixed flow, this mixed flow is stably conveyed to bunker by pipeline, so that in the synergistic effect of venturi effect and Roots blower, the instability problem of conveying caused by pressure fluctuation of traditional single fan power source is solved, effectively avoid pipeline blockage, make conveying efficiency improve.

Claims

1. A dilute phase nitrogen circulating pneumatic conveying device, comprising a base plate (1), characterized in that: The top of the base plate (1) is provided with a conveying mechanism (2) for conveying materials through the principle of dilute phase nitrogen circulation. The conveying mechanism (2) includes: The feeding assembly (21) includes a Roots blower (211) fixedly installed on one side of the top of the base plate (1), a Venturi injector (212) fixedly installed at the output end of the Roots blower (211), a hopper (213) fixedly installed in the middle of one side of the base plate (1), the output end of the Venturi injector (212) is connected to the feed end of the hopper (213) through a flange, a cyclone separator (214) fixedly installed on one side of the top of the base plate (1), the input end of the cyclone separator (214) is connected to the nitrogen discharge end of the hopper (213) through a flange, and a buffer tank (215) fixedly installed on one side of the top of the base plate (1). The recovery component (22) is located on the other side of the base plate (1) and is used for nitrogen recycling.

2. The dilute phase nitrogen circulating pneumatic conveying device according to claim 1, characterized in that: The recovery assembly (22) includes a coarse filter (221) fixedly installed on the other side of the top of the base plate (1). The input end of the coarse filter (221) is connected to the output end of the buffer tank (215). A bag filter (222) is fixedly installed in the middle of the other side of the base plate (1). An adsorption bed (223) is fixedly installed on one side of the top of the base plate (1). A centrifugal compressor (224) is fixedly installed on one side of the base plate (1). The coarse filter (221), the bag filter (222), the adsorption bed (223) and the centrifugal compressor (224) are all connected in series through a conveying pipe.

3. The dilute phase nitrogen circulating pneumatic conveying device according to claim 1, characterized in that: A manifold (2151) is fixedly installed at the top center of the cyclone separator (214), and the output end of the manifold (2151) is fixedly installed at the input end of the buffer tank (215).

4. The dilute phase nitrogen circulating pneumatic conveying device according to claim 2, characterized in that: The top of the Roots blower (211) is provided with an air inlet pipe (2111), which is connected to the output end of the centrifugal compressor (224) via a flange.

5. The dilute phase nitrogen circulating pneumatic conveying device according to claim 1, characterized in that: The buffer tank (215) is designed with multiple partitions for gas buffering and preliminary dehumidification.

6. The dilute phase nitrogen circulating pneumatic conveying device according to claim 1, characterized in that: The Venturi injector (212) has a feed pipe (2112) on the upper side of one side, and the feed pipe (2112) is connected to the external material storage device through a flange.

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