The utility model relates to a kind of negative pressure weighing chamber for ice bor scattering, belong to negative pressure weighing chamber technical field, including box, the inner top wall of the box is equipped with the weighing chamber body that can provide stable space to ice bor scattering and weigh, the inner
left wall of the box is equipped with the air flow component that is powered for gas flow, the top of the weighing chamber body is equipped with the adjustment component that can control the size of air intake speed, the inner bottom wall of the box and below the weighing chamber body is equipped with the first filter component that carries out primary
filtration to air, the inner
left wall of the box is equipped with the secondary filter component that carries out further
filtration to air.The negative pressure weighing chamber for ice bor scattering, by the cooperation of first electric fan, secondary electric fan and adjustment component, can guarantee the uniformity of
pressure difference while improving air outlet, to better meet the actual needs of ice bor scattering, improve weighing stability, by the cooperation of first filter component and secondary filter component, can effectively filter and sterilize air.