36results about How to "Process structure is compact" patented technology

The invention discloses a recovery process of complex multi-metal ores difficult to treat and belongs to the technical field of ore dressing. According to the process, the complex multi-metal ores difficult to treat are taken as the raw materials, products such as gold, silver, copper, zinc, sulfur, lead concentrate and iron slag are extracted by virtue of the steps of ore fine grinding, high-temperature oxidative pressure leaching, copper and zinc recovery by extraction, gold and silver recovery by virtue of thiourea leaching, and lead, iron and sulfur separation by ore separation, and comprehensive recovery of the multi-metal gold ores is realized. The recovery process of the complex multi-metal ores difficult to treat is mainly characterized in that the high-temperature oxidative pressure leaching is performed on the complex multi-metal ores difficult to treat after fine grinding, copper and zinc in the leachate are recovered by use of an extraction-electrodeposition technique, and the extraction residual liquid is returned to oxidative pressure leaching, gold and silver are extracted from the oxidative pressure leaching slag by use of a thiourea leaching-reduction process, and sulfur, lead concentrate and iron slag are obtained from the thiourea leaching slag by use of an ore separation process, respectively. The recovery process is used for comprehensively recovering gold, silver, copper, zinc and the like, has the characteristics of high valuable metal recovery rate, low energy consumption, low cost, closed-loop solution circulation and the like, and is suitable for industrial production.

The invention discloses a treatment technology of comprehensive wastewater produced by engine manufacturing. The treatment process comprises three sections: 1) a preliminary oil removal section: comprehensive wastewater produced by engine manufacturing is sent into a water reservoir, and after the water quality is adjusted, tiny oil slick and most suspended matters are separated out by the aid of simple gravity by use of an oil remover and a tubular remover; 2) a membrane filtration section: the wastewater enters a membrane filtration system after being filtered by a bag filter and filtered under certain pressure with a tubular ultrafiltration membrane used as a filtration medium; 3) integrated A / O (anaerobic / oxic) treatment section: a membrane penetration liquid and factory domestic wastewater are mixed to enter an integrated A / O biochemical treatment system for treatment. Compared with the prior art, the technology has the advantages that the cost of agents for sludge disposal is reduced, the treated comprehensive wastewater can be treated with domestic wastewater, besides, the whole technological structure is compact, and the technological process is short.

The invention relates to a cooling and sterilizing process for a protein preparation and a special horizontal type shaking table thereof. In the prior art, a sterilizing device for the protein preparation has the defects of poor stability and difficult control of parameters. The special shaking table comprises a cycloidal pin wheel speed reducer, a driving motor and a shaking table, wherein an eccentric outer gear, an eccentric inner gear, a gear shaft sleeve and a left gear base are fixedly arranged on the cycloidal pin wheel speed reducer and an output shaft of the driving motor; the left gear base is connected with one end of a regulating lead screw; the other end of the regulating lead screw is connected with a right bearing base; a shaking amplitude adjustment device is connected with the bearing base and one end of a shaking oscillating bar; the other end of the shaking oscillating bar is connected with one end of a rotating shaft of the shaking oscillating bar; and the other end of the rotating shaft of the shaking oscillating bar is connected with the shaking table by a transmission device in a shaking table cylinder body. The special horizontal type shaking table has a reasonable and compact structure, is reliable in strength, rigidity and toughness of key positions, small in assembly stress of parts and high process performance, process parameters are easy to control, and the optimal bacteriostatic effect can be achieved.

The invention relates to a low-temperature multiple-effect evaporation crystallization and filtration process belonging to the technical field of chemical engineering separation and energy conversation and emission reduction. The process is characterized in that processes of low-temperature multiple-effect evaporation, crystallization and filtration, granulation and the like are coupled to form aset of complete waste liquid emission free process for concentrating and extracting solute. The process comprises two loops, wherein a three-effect evaporator, a cooler, a crystallization filter and a heat exchanger form a loop; a four-effect evaporator and a crystallization filter form the other loop; low-temperature heat source or waste heat is utilized in one-effect evaporation, and secondary steam generated by the former one-effect is utilized in other effect evaporation; and heat required by the heat exchanger in a three-effect evaporation circulating loop is supplied by heat released bytemperature reduction of a heat source flowing from a one-effect evaporator. The invention has the advantages of reducing investment cost by adopting the low-temperature heat source or waste heat andthe secondary steam as heat sources, lightening corrosion because the concentration of a solution is not overhigh by adopting a reflux mode, being not easy to block a pipe, reducing operation cost, and being capable of completely separating out the solute without emitting waste liquid.

The invention relates to the field of natural gas liquified systems in refrigeration and at low temperature, and in particular relates to an overlapped natural gas liquified system in a mixed refrigerant cycling expansion machine. The overlapped natural gas liquified system in the mixed refrigerant cycling expansion machine comprises a compressor module, a precooling module, a condensation module and a liquified module; multi-element mixed medias are adopted as refrigerants, MRC (mixed refrigerant cycling) and expansion machine refrigeration cycling are internally overlapped; the system runs reliably; the energy consumption is low; the load match is flexible, and the single line production energy is high; the liquified flow is simplified; the structure is compact; and the modular design is easy to adopt flexibly in various occasions.

The invention discloses a novel boiling bed combining technique. The technical flows are as follows: a heavy hydrocarbon oil material after being mixed with hydrogen enters a boiling bed reactor in a mode of flowing to the upside for reaction; a gas effluent after reaction is directly fed into a fixed bed reactor in the down stream for carrying out hydrogenation refining; a liquid effluent is discharged under the control of a liquid control system arranged on the reactor and is directly fed into a middle-low temperature low-pressure separator after decompression for separating; the separated gas is fed into the fixed bed for hydrogenation and the liquid is discharged as a catalyzing-cracking material. The combining technique omits a high-temperature high-pressure separating device, avoidshot oil from generating a coking reaction in heat and high-pressure separation; simultaneously the heat source of the gas effluent is fully used to lead the technique to be compact, save energies andsave the cost.

The invention discloses a staged low-temperature alkali liquor evaporating and concentrating device based on heat pump cycle. The device comprises a low-concentration alkali liquor evaporator, a high-concentration alkali liquor evaporator, a refrigerant storage tank, a vacuum pump, a first thermal expansion valve, a second thermal expansion valve, a high-pressure dry-type refrigerant evaporator, a lower-pressure dry-type refrigerant evaporator, a first coil pipe, a first fan, a second coil pipe, a second fan, a refrigeration compressor, a Roots blower, a condensate water tank, a condensate water pump, a concentrated alkali liquor pump, a liquid level control valve, a liquid level control switch, a valve and the like. The low-concentration and high-concentration alkali liquor evaporators adopt vertical shell-and-tube falling film structures, the condensation temperature of water vapor outside tubes is adjusted through adjustment of evaporation temperatures of the low-pressure and high-pressure dry-type evaporators respectively, and pressure in the low-concentration and high-concentration alkali liquor evaporators is controlled, so that the alkali liquor evaporation temperature is adjusted; a method of dual control by the aid of an alkali-liquor-side flow valve and an inverter compressor is adopted to ensure matching of heat absorption of the alkali liquor evaporators with heat release of refrigerants.

The invention discloses a fine particle natural graphite synthesis device, which comprises a bottom box and an extrusion box, a pair of extrusion rollers are arranged in the upper part of the extrusion box, and the inner side wall of the extrusion box is located below the extrusion rollers There is a pair of side deflectors at the center. The invention relates to the technical field of graphite processing. The device has a compact structure. The spiral plate is driven by the screw shaft to uniformly feed the graphite raw materials into the extrusion box, which is convenient for the subsequent extrusion molding work. The extruding roller performs a primary extrusion on the graphite raw material, and the extrusion head rotates to perform secondary spinning on the graphite raw material. After the synthesis, the large flake graphite can automatically flow to the reclaiming sliding door under the action of the material guide plate. And during the flow process, it is cooled rapidly by the heat exchange tube, so that the structure of the large flake graphite is more stable, which brings convenience to people's use.

The invention relates to an automatic machining device for a round metal cover in the field of full-automatic machining devices. The automatic machining device for the round metal cover comprises an automatic feeding disk and an automatic machining host; the automatic feeding disk is used for automatically transferring the round metal cover, and is located beside the automatic machining host; theautomatic machining host comprises a rack; a master control electric box is arranged at the bottom of the rack; a machining platform and a square protecting cover are arranged on the top of the rack;the portion above the machining platform is covered with the square protecting cover; the machining platform is arranged on the top face of the master control electric box; a master control panel is arranged at the front end of the square protecting cover; the machining platform comprises a disk type feeding mechanism, a turning tool machining mechanism, a steering mechanism and a combined machining mechanism, and can achieve full-automatic machining comprising the procedure of turning machining, automatic detection, automatic chamfering, automatic deburring and the like; a plurality of manually operated procedures can be saved due to full-automatic work, and the machining efficiency of products is remarkably improved.