Patent ID: 8042988

Claim:
A hole-jetting type mixer-reactor, comprising the following parts: a first feeding port and a second feeding port, an outer casing, an inner casing, jet holes and a mixing reaction zone; the inner casing is inside the outer casing, and the lower portion of the outer casing forms a buffer chamber with the inner casing; the first feeding port connects with the inner casing to form one flow channel, and the second feeding port connects with the buffer chamber to form the other flow channel; the jet holes are on the wall of the inner casing which is located at the lower portion of the buffer chamber; the mixing reaction zone is located inside the inner casing below the jet holes; the inner casing is a platode pipe with rectangular or rectangle-like cross section, the said rectangle-like cross section is a rectangle with four right-angled corners being rounded or a rectangle-like plane with a rectangular central portion and two arcuate side portions, and the length l 2 of two long sides of the said cross section is greater than the perpendicular distance l 1 between the two long sides, wherein the perpendicular distance l 1 between the two long sides of the cross section of the inner casing is 5-50 mm, and the inside sectional area of the inner casing S A satisfies the following relationship 1 ≤ u B / u A = Q B / ( n · S h ) Q A / S A ≤ 20 wherein, u A is the flow rate of stream A in the platode channel before mixing, m/s; u B is the flow rate of stream B passing through the jet holes, m/s; Q A and Q B are the volume flow rates of stream A and B, respectively, m 3 /h; S A is the inside sectional area of the inner casing, m 2 ; n is the number of jet holes; S h is the cross sectional area of each jet hole, m 2 ; when both stream A and stream B are liquids with their viscosities less than 200 mPa·S, the velocity of stream A, u A is 1-40 m/s; otherwise when the streams are gases, u A is 2-150 m/s.