32results about How to "High emission concentration" patented technology

The invention relates to a total-tailings paste filling and stockpiling combined treatment method based on a deep-cone thickener. A combined treatment system is composed of a one-stage or multi-stage pump station, the deep-cone thickener and a two-segment horizontal stirring device. The deep-cone thickener is arranged near the multi-stage pump station. A continuous feeding and discharging mode is adopted for achieving the continuous concentration process, and the two functions of filling and tailings stockpiling are both taken into consideration. In the running process of a filling system, total tailings of a concentration plant are completely thrown into the deep-cone thickener through the one-stage or multi-stage pump station. When filling is needed, deep-cone bottom flow is pumped to the two-segment stirrer through a mortar pump and is mixed with cement, and qualified paste is prepared and flows to or is pumped to a stope. When filling is not needed, the bottom flow is pumped by a plunger pump to a tailings pond by means of the pump station, and stockpiling of paste is performed. The method can well solve the filling problem of a gob and the stockpiling problem of tailings at the same time, filling cost is greatly reduced, the strength of filling bodies is improved, discharge of the tailings is reduced to the maximum extent, and meanwhile tailings paste is discharged.

The invention discloses a cheese dyeing and dewatering device. The cheese dyeing and dewatering device comprises a cylinder body, a cylinder cover, a driving device, a centrifugal separation device, a heating circulating pipe, a liquid supply device and a drying device; the cylinder body is covered with the cylinder cover, the driving device is arranged at the bottom of the cylinder body, and the output end of the driving device extends into the cylinder body; the centrifugal separation device comprises a rotating drum and a cheese stringing tube used for installing cheese, the rotating drum is arranged on the cheese stringing tube in a sleeving mode, and the rotating drum and the cheese stringing tube are both fixedly connected with the output end of the driving device and each provided with holes allowing liquid and hot air to pass through; the heating circulating pipe is arranged in the cylinder body and located between the rotating drum and the inner wall of the cylinder body, the liquid supply device is arranged outside the cylinder body and connected with the cylinder body and the driving device respectively, and the drying device and the liquid supply device are arranged in parallel. The cheese dyeing and dewatering device has the advantages that cheese dyeing, dewatering and drying operations are completed on same equipment, centrifugal dewatering of the dyed cheese can be conducted in a dyeing machine, energy consumption and water consumption are reduced, and the space is saved.

The invention discloses a desulfurization additive applicable to a limestone-gypsum wet-method flue gas desulfurization technique. The desulfurization additive is prepared from the following raw materials in parts by weight: 60 to 70 parts of mixed organic acid, 10 to 20 parts of loss inhibitor, 0 to 1 part of mercury stabilizer, 20 to 30 parts of oxidation catalyst and 5 to 15 parts of antifoaming agent, wherein the mixed organic acid is a mixture of adipic acid, succinic acid and glutaric acid; the weight ratio of the adipic acid to the succinic acid to the glutaric acid is 26 to 35 to 39; the oxidation catalyst is a mixture of manganese sulfate and iron sulfate; the weight ratio of the manganese sulfate to the iron sulfate is 3 to 4. The desulfurization efficiency and the utilization rate of limestone can be improved through the use of the desulfurization additive; further, the loss of the desulfurization additive and the emission concentration of the mercury can be reduced. In the same condition, after the additive provided by the invention is added into a desulfurization system, the time of maintaining that the desulfurization efficiency reaches 90 percent is prolonged; improvement of the utilization rate of the limestone is shown.

The directly contacting membrane desalting apparatus with hollow fiber includes membrane tank, porous non-polar hollow fiber membrane arranged inside the membrane tank, porous plates and arc core cover plates. Two porous plates are set separately on two sides of the membrane tank; two arc core cover plates are set separately on the outer sides of the porous plates; the membrane tank, the porous plates and the core cover plates are arranged in parallel; and sealing rubber rings are set between the membrane tank and the porous plates and between the porous plates and the core cover plates. The desalting apparatus of the present invention has high water producing capacity, low water producing cost, high sea water recovering rate, simple operation and wide application range.

The invention discloses a civil aviation jet fuel solid phase impurity removing device. The civil aviation jet fuel solid phase impurity removing device comprises a pressure sealing tank and a cyclone, and is characterized in that a separating plate is arranged at the middle-lower part of the pressure sealing tank, the periphery of the separating plate is welded with the inner wall of the pressure sealing tank in a sealing manner, a mounting hole is formed on the separating plate, a cone part of the cyclone is inserted into the mounting hole to be in sealing connection with the separating plate, the separating plate divides the pressure sealing tank into two independent sealing units, a feeding pipe of the cyclone penetrates through the wall of the pressure sealing tank to be in sealing connection with the wall of the pressure sealing tank, a high-level discharge pipe is arranged at the top of the pressure sealing tank, a lower-level blowdown pipe is arranged at the bottom of the pressure sealing tank, and a lower-level blowdown pipe is arranged on the wall of the pressure sealing tank above the separating plate. The civil aviation jet fuel solid phase impurity removing device can completely replace gravity settling impurity removal equipment in the civil aviation jet fuel impurity removal process, and can effectively improve the impurity removal efficiency and the equipment processing capacity, reduce the equipment investment and occupied area and prolong the service life of a filter screen in the lower level.

The invention discloses a production process of a non-base-cloth non-woven filter material and a special device thereof. The production process is characterized by including the steps of lapping, pre-needling, splitting and spunlace. The special device for splitting pre-needled felt is designed. The technical problem that non-base-cloth pre-needled felt is prone to deformation under small external force is effectively solved through the device, by optimizing the splitting and spunlace process, the prepared non-base-cloth non-woven filter material meets the performance index requirements for warp and weft strong force of the filter material in the national standard, the emission concentration and total filter efficiency both meet the national standard requirement, dimensional stability is better, the procedures of the production process are simpler, production time is shorter and controllable, and industrial large-scale production is facilitated.

The highly effective reaction deep cone settling comprises coagulation reaction by mixing the mixer and sewage into the coagulation device, with the density of the sewage 1-60g / l, mechanical blending speed 200-400r / m, forming floc suspension which goes through is generated into secondary flow, and forms on the slanting plate big grain aggregates, sliding to the deep cone density chamber through the conical slanting plate center in sedimentation reaction, and with the big grain aggregates crushed and condensed in the density chamber and exhausted with further dehydration in deep cone condensation. It combines the deep cone sedimentation, coagulation and condensation. It is mainly used for the treatment of high density fine grain sewage with mud.

The invention discloses a motor control circuit. The motor control circuit comprises a selection switch, a contactor, a thermal relay and a display lamp, wherein the selection switch is configured to be connected to a positive electrode of a power supply and used for switching a manual control mode and an automatic control mode; one end of the contactor is connected to the selection switch, the contactor is electrified to control the closing of a contactor switch and powered off to control the opening of the contactor switch; one end of the thermal relay is connected to the contactor, the other end of the thermal relay is connected to a negative electrode of the power supply through the motor, the temperature of the thermal relay exceeds a preset value, the thermal relay is disconnected, a thermal relay switch is controlled to open, when the temperature of the thermal relay is lower than or equal to the preset value, the thermal relay is closed, and the thermal relay switch is controlled to close; one end of the display lamp is arranged between the contactor and the thermal relay through the contactor switch, and the other end of the display lamp is connected to the negative electrode of the power supply. The motor control circuit is simple to produce and install and convenient and safe to operate; the working efficiency of the motor is higher.