Open pit coal mine mudstone disintegration test device

The embodiment of the utility model discloses a mudstone disintegration test device for an open pit coal mine, relates to the field of mudstone disintegration characteristic research, and can realize a mudstone disintegration characteristic test. The test device comprises a water inlet tank, a water pump, a series container and a recovery water tank, the water pump is arranged in the water inlet tank and is communicated with the water inlet of the serial container through a water inlet pipe; the water outlet of the serial container is communicated with the recycling water tank through a water outlet pipe, so that a sealed test flow path is formed; the series container comprises a plurality of test containers; the plurality of test containers are sequentially connected in series and communicated; a mesh screen is arranged at the water outlet of each test container; the hole diameters of the mesh screens of the test containers in the serially connected containers are sequentially reduced; the water inlet pipe a