44results about How to "Avoid wall flow" patented technology

The invention belongs to the field of wastewater treatment, and particularly relates to an ozone-based biofilm biochemical reaction system and a wastewater purification process. The system comprises an ozone reactor, an oxygen-enriched aeration biofilm biochemical reactor, and an ozone decomposition reactor, wherein the ozone reactor is used for purifying wastewater by using ozone, the oxygen-enriched aeration biofilm biochemical reactor communicates with an ozone generator, and is used for carrying out deep purification treatment of the purified wastewater and performing discharge, and the ozone decomposition reactor respectively communicates with the ozone generator and the oxygen-enriched aeration biofilm biochemical reactor, and is used for decomposing the unreacted ozone after passingthrough the ozone reactor into oxygen. The invention provides a low-energy-consumption, high-efficiency, and economical wastewater deep purification process: an ozone catalytic oxidation in series with fixed biofilm biochemical reactor. With relatively low energy consumption, wastewater can be purified and discharged up to standard.

The invention relates to a desulfuration regeneration tower. Coal gas and a desulfurizing liquid are subjected to mass transfer in a filling material to remove hydrogen sulfide in coal gas, the desulfurizing liquid reaches an upper regeneration section through a desulfurizing liquid conveying pipe, and the coal gas is regenerated by utilization of air under the action of a catalyst, and returns to a lower desulfuration section to be subjected to desulfuration. The desulfuration regeneration tower is divided into the lower desulfuration section and the upper regeneration section, wherein the lower desulfuration section comprises a coal gas inlet, a coal gas outlet, a coal gas distributor, a filling material, a mist collecting filling material, a filter, a cyclone separator and a desulfurizing liquid outlet; the upper regeneration section comprises a bubble separator, an inclined conical section, a foam outlet, a regenerated air outlet and a gas distributor. According to the desulfuration regeneration tower, an HPF wet oxidation process desulfuration technology is adopted, so that the desulfurizing liquid and air can be better mixed, the contact time is prolonged, the influence on desulfurizing liquid temperature by environmental temperature is reduced, meanwhile space is saved, lots of materials are saved, the desulfuration efficiency is improved by utilization of self structural advantages, and the environmental pollution of a coking plant is reduced.

The present invention discloses a water head pressure control system and an apparatus for a pinhole seepage deformation test. The water head pressure control system comprises a water storage device and water supply pipes for supplying water for a seepage deformation device, wherein the water supply pipes comprise a water supply main pipe and at least a water supply branch pipe communicated with the water supply main pipe, one end of the water supply main pipe is communicated with the water storage device, the other end is communicated with each water supply branch pipe, the water supply main pipe is further provided with a water drain pipe, each water supply branch pipe end being not connected with the water supply main pipe is respectively communicated with the water inlet pipes in each seepage deformation device, the water supply main pipe is sequentially provided with a metering pump, a first accumulator, a speed regulating valve, a pressure reducing valve, a second accumulator and a pressure gauge, the water drain pipe is arranged between the first accumulator and the speed regulating valve and is provided with an overflow valve, and each water supply branch pipe is provided with a shut-off valve and a pressure gauge. According to the present invention, the structure of the apparatus is simple, the seepage deformation water pressure during the experiment process can be continuously, stably and accurately controlled, and the reliability of the experimental data can be improved.

The present invention discloses an anti-clogging and anti-wall-flow filler tower, which comprises a cylinder, a filler positioned in the cylinder, and a filler support grate positioned in the cylinder, wherein a liquid outlet is arranged below the cylinder and is connected to a finished product tank, a material inlet is arranged above the cylinder, the cylinder is provided with a gas outlet, a filler is arranged in the cylinder, the lower portion is the filler support grate, the cylinder is formed by sequentially connecting a first part, a second part and a third part from top to bottom, the second part has a cone table shape, the diameter of the lower end of the second part is larger than the diameter of the upper end, and the filler is positioned in the second part, and is stacked to form a cone table shape. According to the present invention, the anti-clogging and anti-wall-flow filler tower has characteristics of simple structure and convenient use; and when the high temperature gas passes through the cone-table-shaped cylinder, the speed is accelerated, such that the separation of the liquid at the wall surface is rapid, and the contact surface between the gas and the quid is large so as to completely contact.

The invention relates to a high-performance liquid chromatographic ball, which comprises a pre-column, a ball body and a first flange device, wherein the first flange device is connected with the pre-column and the ball body; the ball body has a cavity structure composed of an upper half ball and a lower half ball which are connected through a second flange device, an upper pipe body communicated with the cavity is arranged at the top of the upper half ball, a pipe orifice of the upper pipe body is fixedly connected with the pre-column through the first flange device, and a lower pipe body communicated with the cavity is arranged on the bottom end of the lower half ball. The technical problems that the liquid chromatographic column is commonly instable, and easily damaged can be solved, and the liquid chromatographic ball has the advantages of being simple in structure, large in injection volume, and stable in the column body.

The embodiment of the present application shows a kind of production equipment for producing concentrated nitric acid by magnesium nitrate method. Through the transformation of the concentration tower, the occurrence of wall flow and vertical downflow of magnesium nitrate solution can be effectively avoided, and the concentration of dilute nitric acid can also be greatly reduced. The content of magnesium is such that the concentration of magnesium tail water formed by the condensation of the acid vapor evaporated from the magnesium nitrate evaporator is below 0.1%. By adding an acid separator, the magnesium tail water and acid vapor can be fully exchanged in gas-liquid in the acid separator, effectively reducing the concentration of the tower tail water. Magnesium tail water is used as production water and sent to the circulating pool as supplementary water for production. Through the above modification, the comprehensive utilization of tower tail water and magnesium tail water acidic wastewater can be realized, and zero discharge of acidic wastewater can be realized.

The invention discloses a wastewater ammonia nitrogen blow-off treatment reaction device which comprises a shell, wherein a gas water separation layer, a water distribution device, an umbrella-shaped water shield and a gas distribution device are distributed in the shell at intervals from top to bottom in sequence; the shell is divided into an upper chamber and a lower chamber by the umbrella-shaped water shield; a drain pipe is arranged on the shell at the bottom of the upper chamber; the water distribution device consists of a water inlet pipe, a gas inlet pipe and a double-fluid spray nozzle, wherein the water inlet pipe and the gas inlet pipe are communicated; and the communication part of the water inlet pipe and the gas inlet pipe is provided with the downward double-fluid spray nozzle to form a three-way structure, so that gas-liquid waste caused by mixing gas and liquid by utilizing a packing layer can be effectively avoided, channeling and wall flow phenomena can be effectively prevented, and the stability of ammonia nitrogen blow-off treatment is improved.