Gas-solid separation device with backblow system

Abstract

The invention discloses a gas-solid separation device with a backblow system. The device comprises a device body provided with a treatment space inside, a crude gas inlet arranged on one side of the device body, a gas outlet arranged on the other side of the device body, a clapboard which is arranged in the treatment space and partitions the treatment space into a filtration chamber and an air-purifying chamber, at least one filter element which extends into the filtration chamber from the partition and is in gas communication with the filtration chamber and the air-purifying chamber, and the backblow system which is arranged in the air-purifying chamber and comprises at least one backblow port, wherein the crude gas inlet is communicated with the filtration chamber, the gas outlet is communicated with the air-purifying chamber, and the at least one backblow port is correspondingly arranged on the top of the filter element. The device adopts the backblow system to effectively blow off solid particles adhered to the filter element to avoid the phenomenon that the solid particles block the filter element, thereby ensuring the steady operation of the device.

Description

technical field [0001] The invention relates to a filter device, in particular to a gas-solid separation device used in a biomass energy conversion system. Background technique [0002] With the continuous development of the world economy, energy and environmental issues have become increasingly prominent. The main energy sources currently used by human beings are oil, natural gas and coal. According to the statistics of the International Energy Agency, the lifespan of these three kinds of energy for human exploitation on the earth is only 40 years, 50 years and 240 years respectively. The development of new energy has become a major issue related to the sustainable development of human society. [0003] Biomass energy is the solar energy stored in plants by the photosynthesis of plants and solar energy. It is estimated that the annual energy stored in plants is equivalent to 10 times the world's main fuel consumption, while the utilization of energy as energy is less tha...

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Problems solved by technology

However, it can be seen from the above description that the patent No. CN200510057215.8 has the following disadvantages: the filter element of the gas-solid separator in the prior art is easily blocked by biomass particles after a period of use, resulting in the flow of pyrolysis gas Unsmooth, which leads to loss of productivity, so it must be manually cleaned or replaced on a regular basis, which will cause considerable trouble to production

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