38 results about "Liquid solid" patented technology

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. A filtered water collections tank, a pressurized water supply are sources of wash water inputs. Cold and hot water pressurized water supplies are also potential supply sources. Load balancing of inputs and single and dual wash water pumps are also described.

The present invention provides a particle collision disturbance type gas lift loop reactor, the reactor comprising: a reactor body; a draft tube with a sieve plate; particles, which can be suspended inside the draft tube when the reactor is running; a gas distributor; a main liquid distributor; a gas inlet; a liquid inlet; a gas outlet; and a liquid outlet. Compared with the traditional gas lift loop reactor, due to the turbulent disturbance of particles and fluid inside the draft tube of the reactor, it helps to prevent gas phase aggregation and increase liquid phase back mixing, so that the gas and liquid phases in the reactor are fully mixed, the solubility of the gas phase in the liquid phase and the gas-liquid contact area are increased, the mass transfer rate and heat transfer rate between fluids are improved, and at the same time, the temperature distribution in the reactor is uniform, which is conducive to gas-liquid two-phase reaction or gas-liquid-solid three-phase reaction, and can be widely used in gas-liquid two-phase or gas-liquid-solid three-phase chemical reaction processes.

The invention discloses a three-phase separator and a fluidized bed reactor using the same. The three-phase separator comprises a central guide cylinder for receiving gas-liquid materials ascending from the bottom of a reactor and carried solid catalyst particles and forming first baffling of the liquid-solid materials at the top; the outer guide cylinder is arranged on the outer side of the central guide cylinder in a sleeving manner, and the liquid-solid materials subjected to first baffling move downwards in an annular space between the outer guide cylinder and the reactor wall; the overflow baffling cylinder is arranged between the central guide cylinder and the outer guide cylinder in a sleeving manner, and separation of liquid-solid materials and secondary baffling of liquid-phase materials are formed at the lower end of the overflow baffling cylinder; and third baffling of the liquid-phase material is formed at the upper end of the overflow baffling cylinder, and the liquid-phase material which goes down after the third baffling is discharged from a liquid outlet pipe located at the lower part of the outer wall of the overflow baffling cylinder. Through the structural design of the paper clip type inverted-sequence built-in three-phase separator, the influence of rising gas on the liquid-solid separation efficiency can be effectively avoided.

The utility model discloses a multistage treatment aluminum hydroxide liquid-solid separation drying device, and particularly relates to the technical field of aluminum hydroxide drying, which comprises a barrel, an air inlet pipe for inputting high-temperature hot air is fixedly connected to the bottom of the barrel, and an inner pipe is fixedly connected to the position, corresponding to the air inlet pipe, of the bottom of an inner cavity of the barrel. The top end of the inner pipe is fixedly sleeved with a stabilizing disc. Gas in the inner pipe enters the barrel through the spiral pipe, the gas in the barrel generates rotating force, input raw materials can generate rotating force conveniently, the time of the raw materials staying in the barrel is prolonged through the conical plate, blocky materials can be blocked into the through holes through the through holes, and the blocking effect is good. The block-shaped materials are scattered through rotation of the scraping plate and the shifting plate, when the scraping plate and the shifting plate are located on the top of the cone plate, the block-shaped materials fall on the top of the cone plate due to the fact that upward impact force of gas on the top of the cone plate is reduced, the block-shaped materials are scattered through shifting of the shifting plate, and the drying quality and effect are improved.

The utility model relates to the field of concentrated waste liquid treatment, in particular to a concentrated waste liquid solid-liquid separation device which comprises a box body and an adjusting motor, the adjusting motor is installed on the upper end face of the box body, an adjusting rod is installed at the output end of the adjusting motor, fixing grooves are symmetrically installed on the left side wall and the right side wall of the adjusting rod, and spring rods are installed at the bottoms in the fixing grooves. A plurality of stirring rods are mounted on the outer side wall of the annular sleeve in the circumferential direction of the annular sleeve; a first filter screen is arranged below the annular sleeve; a water inlet is formed in the upper end face of the box body; water outlets are formed in the bottom of the box body in a bilateral symmetry manner; the structure of the annular sleeve and the spring rod is adopted, so that the stirring rod can shake up and down while rotating, the mixing effect of demulsification and concentrated waste liquid is further improved, the precipitation effect of the demulsification and concentrated waste liquid is ensured, and subsequent solid-liquid separation treatment is facilitated.

The invention relates to the technical field of crystallization equipment, in particular to centrifugal anti-blocking gas-liquid separation continuous crystallization equipment. According to the technical scheme, the device comprises an evaporative crystallization system and a gas-liquid separation system integrated in a scrubber tank. A high-speed rotating centrifugal separation mechanism is adopted to replace a traditional wire mesh demister, efficient gas-liquid-solid separation is achieved through centrifugal force, and the problem of blockage caused by crystal attachment is fundamentally solved. The gas-liquid separation system is provided with a mechanical liquid discharge structure which can be automatically opened and closed and has a self-dredging function, and a differential adjusting mechanism which can generate a rotating speed difference to realize online scale scraping and blockage clearing. The device realizes continuous, efficient and stable purification of crystal-containing steam, effectively protects key equipment such as a compressor, ensures complete closed-loop recovery of mother liquor, has the advantages of strong anti-clogging performance, high separation efficiency, automatic operation and convenient maintenance, and is suitable for the continuous crystallization process of Bayer process mother liquor and other high-difficulty materials.

The utility model discloses a leakproof radioactive waste liquid solid sampling tool which comprises a sampling machine shell, height grooves are formed in the two sides of the inner wall of the sampling machine shell, height blocks are slidably connected to the interiors of the two height grooves, an installation table is fixedly installed between the two height blocks, and a clamping mechanism is fixedly installed at the bottom end of the installation table. According to the leakproof radioactive waste liquid solid sampling tool, the clamping mechanism and the sealing mechanism are arranged, the two clamping plates are subjected to angular deflection relative to the length shell, the clamping plates are used for clamping and fixing the two sides of a radioactive waste liquid solid, and after sampling, the radioactive waste liquid solid is separated from the length shell, so that the leakproof radioactive waste liquid solid sampling tool can be used for sampling the radioactive waste liquid solid. The mounting table shrinks to store the radioactive waste liquid condensate in the sampling machine shell, and the sealing plate deflects relative to the sampling machine shell to seal the sampling machine shell, so that impurities on the radioactive waste liquid condensate are prevented from leaking to the outside, and the sampling safety of the radioactive waste liquid condensate is improved.

The invention provides a sand-carrying process design method for a jet pump containing gas, liquid and solid phases in an oil well, and relates to the field of oil extraction processes. The fluid production capacity is designed based on a critical sand-carrying fluid flow velocity calculation formula fitted by a solid-liquid two-phase flow experiment, a corresponding flow pressure calculation model is established by considering the gas-liquid-solid three-phase complex flow working condition of an oil well shaft, and then the pressure drop from the well bottom of a specific shaft position to the suction inlet of the jet pump and the suction pressure of the jet pump are iteratively calculated; the minimum cavitation area is obtained according to the calculation result, the jet pump is optimized to guarantee safe and efficient operation of the process, meanwhile, the jet pump outlet pressure is obtained through calculation with the same iteration method, the power liquid pressure is calculated through iteration according to the jet pump suction pressure and the jet pump outlet pressure, and the power liquid flow and the ground pump pressure of the jet pump process are designed. According to the method, the condition that the shaft is in a gas-liquid-solid three-phase state is fully considered, and an important theoretical support is provided for the sand-carrying process design of the jet pump in the multiphase flow.

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. Various recirculation systems are proposed including an external pump sump, internal pump recirculation and dual pumps with one disposed externally in a sump and one internally in the lower basin of the container. Recirculation points include an inflow pipe connection, an influent basin connection located above the influent basin and influent basin connection located underneath the liquid solid mixture influent level.

The application provides a kind of oil well gas liquid solid three-phase jet pump sand carrying process design method, and relates to oil production process field.Based on the critical sand-carrying liquid flow rate calculation formula designed by fitting solid-liquid two-phase flow experiment, the production fluid rate is designed, the complex flow condition of gas-liquid-solid three-phase in the wellbore is considered, the corresponding flow pressure calculation model is established, and then the pressure drop from the bottom hole to the jet pump suction inlet at a specific wellbore position and the jet pump suction pressure are iteratively calculated, the minimum cavitation area is obtained according to the calculation result, to optimize the jet pump to ensure the safe and efficient operation of the process, at the same time, the jet pump outlet pressure is calculated by the same iterative method, the power fluid pressure is iteratively calculated according to the jet pump suction pressure and the jet pump outlet pressure, to design the power fluid flow rate and the ground pump pressure of the jet pump process.The application fully considers the gas-liquid-solid three-phase condition in the wellbore, and provides important theoretical support for the jet pump sand carrying process design in multiphase flow.

The invention discloses a device and method for detecting metal ions in a solution based on ice water liquid-solid phase change. A liquid drop shaping unit of the metal ion detection device is made of a transparent low-temperature-resistant material, and a liquid drop-shaped cavity with an opening in the bottom end is formed in the liquid drop shaping unit; the refrigeration unit is detachably connected to the bottom end of the liquid drop shaping unit in a sealing manner and is used for cooling the to-be-detected solution so as to manufacture a two-dimensional liquid drop-shaped slice of the to-be-detected solution; the image acquisition system and the liquid drop shaping unit are oppositely arranged along the horizontal direction, are focused on the liquid drop-shaped solution to be detected and are used for recording the ice water liquid-solid phase change process of the solution to be detected; and the image analysis system is used for analyzing the ice water liquid solid phase change process of the to-be-detected solution obtained by the image acquisition system to obtain ice water liquid solid phase change characteristics, and speculating the ion species or concentration of the to-be-detected solution according to the ice water liquid solid phase change characteristics. The detection device has the characteristics of high detection efficiency, low cost, no pollution, high environmental adaptability and simple and convenient structure.

The utility model discloses a full -automatic continuous gas -liquid, liquid solid separation device, including cylinder portion, feed part, first discharge part and second discharge part, first discharge part and second discharge part are arranged respectively in the upper and lower both ends of cylinder portion, the feed part is arranged in the circumferential position of cylinder portion, the feed part is incident to the inside of cylinder portion with predetermined angle, first discharge part still is provided with filter part, in this scheme, mixed material is incident to the cylinder portion with certain speed, and mixed material can spiral down in the cylinder, and heavy liquid and fixed material can gradually move to the lower part of cylinder portion in the process of moving, and are discharged from second discharge part, and lighter gas material can contact and rebound and rise from the bottom of cylinder in the process of moving, and are discharged from first discharge part, and the filter part is arranged on first discharge part and can screen out solid material, guarantees that the gas material in first discharge part is discharged smoothly.

The utility model relates to the technical field of concentration tower recovery processing equipment, in particular to a device for recovering high-boiling residues and reducing solid content of a concentration tower, the bottom of a concentration tower body is connected with a concentration tower reboiler, the inlet end of a concentration tower kettle pump is connected with the bottom of the concentration tower reboiler, and the inlet end of the concentration tower kettle pump is connected with the bottom of the concentration tower reboiler. A high-boiling residue impurity removal liquid-solid separator is connected to the outlet end of the high-boiling residue impurity removal device, and the outlet end of the high-boiling residue impurity removal liquid-solid separator is connected with the inlet end of the high-boiling cracking device; one side of the concentration tower body is connected with a slag inlet pipeline, the top of the concentration tower body is connected with a discharge pipeline, and the discharge pipeline is provided with a circulating treatment assembly.According to the high-boiling residue impurity removal liquid-solid separator, the solid content of chlorosilane is reduced, erosive wear of solid particles to the inner wall of a pipeline is greatly reduced, the service life of the pipeline is remarkably prolonged, and the cost is reduced. And the frequency of pipeline maintenance and replacement is reduced, and the pipeline maintenance cost is reduced.

This invention provides a methane fermentation residue dewatering system that can process methane fermentation residue without increasing the size of the equipment configuration beyond the storage tank, even when the properties of the fermentation liquid fluctuate significantly, leading to unstable water quality of the fermentation residue dewatered filtrate and unstable operation of the fermentation residue dewatering system. [Solution] The methane fermentation residue dewatering system A1 comprises a first solid-liquid separation unit 16 that separates the fermentation liquid containing fermentation residue discharged from a dry methane fermentation tank 14 into a first residue mainly consisting of solids and a first filtrate mainly consisting of liquids; a storage tank 18 that stores the first filtrate separated by the first solid-liquid separation unit 16; a circulating storage tank liquid solid-liquid separation unit 20 that separates the storage tank liquid a discharged from the storage tank 18 into a second residue mainly consisting of solids and a second filtrate mainly consisting of liquids; and a third solid-liquid separation unit 22 that separates the storage tank liquid b discharged from the storage tank 18 into a third residue mainly consisting of solids and a third filtrate mainly consisting of liquids.

The solid-liquid separation device comprises a separation barrel and a separation rotary drum, the bottom end of the separation rotary drum is fixedly connected with a leading-out barrel, the bottom end of the leading-out barrel is fixedly connected with a connecting cover, and a positioning barrel is rotationally installed at the bottom of an inner cavity of the connecting cover; a solid bearing cylinder is fixedly connected to the bottom end of the positioning cylinder, a guiding-out bearing cylinder is fixedly connected to the bottom end of the solid bearing cylinder, and a connecting plug is slidably mounted in the guiding-out bearing cylinder; a plurality of supporting legs are fixedly installed at the bottom end of the separation barrel at equal intervals, and a bearing base is fixedly installed at the bottom ends of the multiple supporting legs. According to the solid-liquid separation device disclosed by the utility model, through the matching of the separation rotary drum, the solid bearing drum, the connecting plug and other structures, separated solids can be discharged according to actual conditions in the solid-liquid separation process of the flow-back liquid, so that the solid-liquid separation work of the flow-back liquid can be continuously carried out by the whole device, and the use effect of the whole device is improved.

The utility model discloses a cleaning liquid solid-liquid separation device for a plastic regeneration process, which belongs to the technical field of plastic recovery and comprises a cleaning pool, a bearing rod is fixedly connected to the upper end of the cleaning pool, a reset spring is mounted on the surface of the bearing rod, a bearing frame is fixedly connected to the lower end of the reset spring, and a motor is fixedly connected to the lower end of the bearing frame. The output end of the motor is fixedly connected with a loading and unloading assembly, and the lower end of the loading and unloading assembly is provided with a cleaning assembly; according to the plastic bottle cleaning device, the cleaning assembly is arranged, when the cleaning assembly is used for cleaning a plastic bottle, the cleaning assembly can stretch out and draw back to better adapt to cleaning of an uneven surface, the cleaning degree is guaranteed, a favorable environment is created for follow-up work, practicability is high, the cleaning assembly can be rapidly replaced by arranging the assembling and disassembling assembly, and when the cleaning assembly needs to be maintained, the cleaning assembly is convenient to disassemble and assemble. Therefore, the maintenance time is shortened, a worker can conveniently complete the maintenance work, and the practicability is high.

Provided is a storage and delivery system that includes a container containing a stable liquid composition therein for increasing the viscosity of an aqueous liquid or aqueous liquid solid mixture foodstuff and having a viscosity of less than 2000 cP and a water activity of greater than 95%, wherein the composition comprises one or more thickening agents and one or more polysaccharides, and a pump dispenser sealingly attached to the container and having a valve for inhibiting or preventing drying of the composition in the container. Further provided is a method of delivering a stable liquid composition to an aqueous liquid or aqueous liquid solid mixture foodstuff by use of the storage and delivery system. A method for increasing the viscosity of an aqueous liquid or aqueous liquid solid mixture foodstuff by adding the stable liquid composition thereto is also provided.

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. Various recirculation systems are proposed including an external pump sump, internal pump recirculation and dual pumps with one disposed externally in a sump and one internally in the lower basin of the container. Recirculation points include an inflow pipe connection, an influent basin connection located above the influent basin and influent basin connection located underneath the liquid solid mixture influent level.

The invention discloses a design of a liquid-like surface under-liquid solid-liquid-gas multi-phase control platform based on pyroelectric action and a solid-liquid-gas multi-phase control method. The design method of the control platform comprises the following steps: step 1, pretreating a pyroelectric wafer material; step 2, performing liquid phase modification on the pyroelectric wafer; step 3, preparing a photo-thermal response material; and step 4, multiphase control platform combination. The control platform designed by the invention is formed by combining three layers of materials in a blocking manner, the preparation process is simple, the operation method for controlling solid-liquid-gas three-phase multi-substances in a liquid-phase environment is simple and convenient, and the production cost is relatively low. The control platform transmits energy to the photo-thermal layer through light, the energy is efficiently absorbed and converted into heat, then the heat is transmitted to the pyroelectric material, local charge gradient is generated on the surface of the material under the pyroelectric effect, and flexible control of solid-liquid-gas three-phase substances in a liquid phase environment is achieved by means of dielectrophoretic force. And the practical application capability of the microfluidic platform in various environments is improved.

The invention relates to the technical field of 1, 4-cyclohexanedicarboxylic acid preparation, and discloses a device and a method for producing CHDA (1, 4-cyclohexanedicarboxylic acid) by continuous hydrogenation of PTA (pure terephthalic acid). The device comprises a reactor I and a reactor II which are connected in series, the reactor I and the reactor II are slurry bed reactors, gas inlets and liquid inlets are formed in the lower ends of the reactor I and the reactor II, gas outlets and liquid outlets are formed in the upper ends of the reactor I and the reactor II, gas-liquid-solid separators are arranged at the gas outlets, and solid-liquid separators are arranged at the liquid outlets; liquid storage cavities for storing hydrogenation catalysts are formed in the reactor I and the reactor II. By adopting the device disclosed by the invention, high trans-CHDA selectivity and high product purity can be realized while continuous feeding and continuous discharging are realized.

The utility model discloses a special mechanical impact type gas-liquid-solid three-phase mixer for a fermentation tank, and relates to the technical field of mixers. The device comprises a liquid inlet, a mixing pipe, a diffusion pipe and a mechanical impactor, the fixed rib plate is arranged around the periphery of the liquid inlet, the air inlet pipe extends into the liquid inlet, and a conical nozzle is arranged at the front end of the air inlet pipe; the mechanical impactor comprises a vertical rod, a plurality of first cross-shaped piles vertically arranged on the peripheral side of the vertical rod at intervals and second cross-shaped piles arranged at the top of the vertical rod. According to the technical scheme, compressed air passes through the conical nozzle and flows at a high speed to convert static pressure into kinetic energy, and high-speed airflow impacts fermentation liquor to achieve primary breaking of bubbles; after entering the mixing pipe, the three-phase flow is torn under the constraint condition, and double breaking of bubbles is completed; the three-phase flow is subjected to multiple crushing through the mechanical impactor; and the mixture with broken bubbles flows through the outlet of the diffusion pipe to complete sufficient power transmission with the fermentation liquor which does not pass through the three-phase mixer, so that the energy consumption corresponding to stirring is greatly reduced.

The solid-liquid separation equipment comprises a separation bin, a feeding port is formed in the top of the separation bin, a liquid storage bin is arranged at the top of one end in the separation bin, and a water passing net plate is arranged at the top of the liquid storage bin; according to the kitchen waste separation device, under the cooperation of the water passing net plate and the liquid storage bin, after kitchen waste is thrown into the separation bin, solid waste and liquid waste can be preliminarily separated, then the subsequent separation efficiency is guaranteed, and under the cooperation of the driving motor, the pricking needle, the cam, the rotating rod, the pore plate and the lifting base, the kitchen waste can be separated. The lifting base and the pore plate can be driven to move up and down in a reciprocating mode, then food waste located at the top of the pore plate is shaken, liquid in the waste is fully separated out, water in solid waste is drained off, bottles in the solid waste can be exploded through the pricking needles in the waste shaking process, waste water stored in the bottles can seep out, and waste water in the bottles can be recycled. Therefore, the separation efficiency is effectively improved.

The invention discloses a polymer waste liquid recovery system and purification process for polytetramethylene ether glycol, the polymer waste liquid recovery system comprises two groups of shells, the shells are connected with a treatment part, and the treatment part comprises: a feed pipe fixedly connected to the upper end of the side surface of the shell; the filter cartridge is fixedly connected to the inner side of the shell; and the guiding-out piece is installed on the shell and used for guiding out solid impurities in the filter cartridge, and the guiding-out piece comprises a guiding-out pipe fixedly connected to the bottom of the shell. According to the high polymer waste liquid recovery system for polytetramethylene ether glycol and the purification process, an eduction pipe, an adjusting column, an auger, a guide pipe, a cross shaft, a first hydraulic cylinder, a motor, a bevel gear assembly, a sleeve, a first butt joint shell, a branch pipe, a second butt joint shell, a discharging pipe, an air cylinder, a bearing barrel, a sliding rod and a filter element are matched with one another; and the solid impurities retained at the waste liquid solid filtering end are guided out.

The utility model discloses heparin sodium processing salt hydrolysate solid-liquid separation equipment, which belongs to the technical field of solid-liquid separation and comprises a base, an ethanol box is fixedly connected to the upper surface of the base, a centrifugal kettle is rotatably connected to the inside of the ethanol box, and two groups of fixing blocks are fixedly connected to the upper surface of the ethanol box. The side faces, close to each other, of the two fixing blocks are jointly and fixedly connected with a supporting frame, the inner bottom wall of the supporting frame is fixedly connected with two limiting springs, and the top ends of the two limiting springs are jointly and fixedly connected with a vibration frame. According to the solid-liquid separation equipment for the heparin sodium processing salt hydrolysate, through cooperation of a plurality of assemblies, the filter screen does not need to be driven to shake through collision, the service life of the filter screen is effectively prolonged, the function of conveniently disassembling and cleaning the filter screen is achieved, the filter screen can be conveniently disassembled and cleaned when the filter screen is blocked due to long-time use, and the service life of the filter screen is prolonged. The next use effect is effectively improved, and the effect of improving the applicability of the heparin sodium salt hydrolysate solid-liquid separation equipment is achieved.

The invention discloses 2, 6-naphthalic acid and a separation and purification method thereof, and the method comprises the following steps: a) contacting a crude 2, 6-naphthalic acid raw material to be purified with a first reaction gas I to obtain 2, 6-naphthalic acid salt; the first reaction gas I is a mixture of neutral gas and alkaline gas and is provided in a micron-sized bubble form; b) contacting the 2, 6-naphthalic acid salt with a second reaction gas II in a solution form to obtain purified 2, 6-naphthalic acid single salt; the second reaction gas II is a mixture of neutral gas and acid gas and is provided in a micron-sized bubble form; and c) contacting the 2, 6-naphthalic acid monosalt with a third reaction gas III in a liquid-solid form to obtain purified 2, 6-naphthalic acid, the third reaction gas III being a mixture of a neutral gas and an acidic gas and being provided in a micron-sized bubble form. Through purification, the crystal grain size of the 2, 6-naphthalic acid is greater than 80 microns, and the nitrogen content in the product is not higher than 0.1 ppm.

A liquid solid separator has a main container wherein a rotating filter belt receives influent for liquid sold mixture sieve processing. A filtered water collections tank, a pressurized water supply are sources of wash water inputs. Cold and hot water pressurized water supplies are also potential supply sources. Load balancing of inputs and single and dual wash water pumps are also described.

The utility model provides a reactor and system for producing polyether polyol, which comprises a reactor shell, a liquid-liquid-solid three-phase uniform mixing distributor, a fluid stirrer and a feed distributor, the liquid-liquid-solid three-phase uniform mixing distributor is arranged at the top end of the reactor shell, and part of the liquid-liquid-solid three-phase uniform mixing distributor is positioned outside the reactor shell; the fluid stirrer is arranged in the reactor shell and is positioned on the lower side of the liquid-liquid-solid three-phase uniform mixing distributor; the feeding distributor is arranged in the reactor shell and is positioned on the lower side of the fluid stirrer; a discharge opening is formed in the bottom of the reactor shell. A circulating pump and a circulating heat exchanger can be additionally arranged, catalyst slurry is uniformly mixed with circulating fluid through the liquid-liquid-solid three-phase uniform mixing distributor and then uniformly distributed on the whole cross section of the reactor under the action of the fluid stirrer, raw materials are input into the feeding distributor and uniformly distributed on the cross section of the reactor, and the raw materials are uniformly distributed on the cross section of the reactor. And under the effect of density difference, rising and performing countercurrent contact reaction with catalyst slurry.

The invention discloses a method for removing and comprehensively recovering thiocyanate from acidified liquid of high-concentration cyanide-containing wastewater, and belongs to the technical field of metal refining. The acidified liquid of high-concentration cyanide-containing wastewater is separated into solid and liquid, and an excess of iron powder is added to the filtrate. The overflowing mixed gas is first passed into a low-temperature soluble zinc salt weak acid solution to fully absorb the H2S and HCN gases therein to produce a ZnS and Zn(CN)2 suspension, and then a sodium hydroxide strong alkaline solution is passed into the suspension for further absorption to ensure that the H2S and HCN gases that are not completely absorbed do not overflow. Concentrated sulfuric acid is added to the ZnS and Zn(CN)2 suspension, the reaction is stirred, and the overflowing HCN gas is absorbed with an alkaline solution. The suspension after the reaction is filtered to obtain a ZnS filter residue and a Zn 2+ Filtrate. The acidified liquid after sufficient reaction with the iron powder is filtered, the residual iron powder is recycled, the pH of the filtrate is adjusted to above 11, the precipitation of iron hydroxide is filtered out and then returned to the cyanide production water system. The present invention realizes SCN ‑ CN ‑ The system can recover and absorb and separate H2S and HCN gases.

The utility model provides a configuration is even heating structure's liquid solid two -phase fermentation tank, include: transmission assembly and gear ring, transmission assembly includes the driving wheel and the driven wheel for transmission, the driven wheel below is equipped with a gear through a transmission shaft, gear and the gear ring inside of top cover lower surface installation interlock, gear ring below is equipped with an electric heating wire, compares with prior art, the utility model has the following beneficial effect: through setting transmission assembly, gear ring and electric heating wire, driving wheel rotates through the belt driven driven wheel, thereby through the driven wheel drive its below gear rotates, gear rotation drives gear ring rotation, gear ring rotation can drive electric heating wire rotates in the inside rotation cavity, the inner bag adopts single layer structure design, therefore is more favorable to the transmission of heat, through the inside rotation cavity even speed and continuous rotation of electric heating wire, therefore can improve the heating evenness of inner bag inside obviously.