46results about How to "Good working environment" patented technology

The invention discloses a color-magnetic separation combined sorting method for high-purity quartz sand produced through quartzite. The method comprises the steps of adopting a crushing-ore washing technology to crush quartzite ore into 1.5-to-2.5 cm blocks, and carrying out ore washing through adopting a cylindrical rotating screen or a linear vibration screen; carrying out roughing and purification on the washed ore through utilizing a color sorter; after parts of a high-quality raw material are selected, carrying out ore grinding, desliming and classification; controlling the particle size of the material at 20 to 140 meshes, and carrying out secondary deironing purification on the part of material through utilizing a vertical ring pulsating high gradient magnetic separator; and after concentrating an obtained product, stacking the product, and carrying out natural dehydration to obtain the high-purity quartz sand. According to the method, adopted technologies belong to physical beneficiation, any chemical substance does not need to be added, and the method is safe and efficient to operate, good in working environment and free of tailing discharge; environmental pollution is avoided; and the method has wide application prospect in high-purity quartz sand manufacturing under the situation that high-quality ore resources are exhausted day by day.

The invention relates to a muddy water balance push bench. The muddy water balance push bench comprises a steel cylindrical housing, a cutting blade disc arranged at the front end of the steel cylindrical housing as well as a cutting disc driving unit, a hinged unit, an electrical instrument control unit and a mud conveying and circulating unit which are accommodated and supported in the steel cylindrical housing, wherein the cutting blade disc is used for cutting a soil body during excavation; the cutting disc driving unit is used for driving forward and reverse rotation of the cutting blade disc; the hinged unit is used for fitting an excavation curve, and especially suitable for the advance of a curve with the small radius; the electrical instrument control unit is used for controlling corresponding actions of all parts; the mud conveying and circulating unit is used for conveying mud and establishing balance of an excavation plane. The push bench provided by the invention adopts a muddy water balanced type, when the excavation plane in an unstable stratum is blocked, the muddy water can be used for pressurizing so as to enable the excavation plane to keep stable, and disturbance on the soil body around a jacked pipe is smaller, so that the land subsidence is smaller. The push bench can pass through transmission pipeline projects of roads, rivers, buildings and the like, and is simple to operate, high in speed and low in cost.

The invention discloses a high-dipping double-layer ore body stage deep-hole mining method, which is especially suitable for recovery of a high-dipping double-layer ore body, wherein the ore rock is stable, the thickness of the lower layer of ore body is more than or equal to 15 m and the thickness of the upper layer of ore body is more than or equal to 8 m. The lower layer of ore body is mined and then the upper layer of ore body is mined, a lower layer of ore body stope is arranged vertical to the direction of the ore body, an ore room and an ore column are recovered in two steps, an upper layer of ore body stope is arranged vertical to the direction of the ore body, and an ore room and an or column are recovered in two steps. Recovery of the upper layer of ore body and the lower layer of ore body is as follows: stage large-diameter deep-hole blasting ore break down is adopted, the ore room is mined, then the ore column is mined, the bottom of 6 to 10 m and the top of 4 to 6 m of a dead zone are filled with high-strength cemented filling bodies after recovery of the ore room and the ore column, the other dead zones of the ore room are filled with the cemented filling bodies, andthe other dead zones of the ore column are filled with low-strength cemented filling bodies or non-cemented filling bodies. The high-dipping double-layer ore body stage deep-hole mining method has theadvantages of high operation safety, small stope preparation cutting engineering quantity, short stope preparation time, high stope production capacity, high efficiency and the like.

The invention discloses a trolley track of a ladle crane. The trolley track comprises at least one section of steel rail which is paved on a rail bearing plate. The trolley track is characterized in that two stop blocks are respectively welded on two sides at the lower part of the steel rail and are simultaneously welded on the rail bearing plate; space is formed among the stop blocks, the steel rail and the rail bearing plate; a binding agent is injected and molded in the space; the steel rail and the rail bearing plate are fixedly bound together by the binding agent; and a through hole is formed in the lower part of the steel rail along the direction perpendicular to the axis of the steel rail and is communicated with the space. The trolley track disclosed by the invention cannot generate displacement under the action of thrust, the mounting precision is kept and favorable moving environment of the trolley is ensured, and thus the service life of trolley wheels and the service life of electrical equipment are prolonged and safety accidents caused by the loosening of a rail pressing device are avoided. Meanwhile, the frequencies of maintaining and repairing can be reduced and the service cost is reduced.

The invention discloses a ventilator used for mines. The ventilator comprises a shell, wherein the bottom of the shell is connected with a base; an air inlet is arranged on the left side of the shell; a sprinkling chamber is arranged on the right side of the air inlet; the top of the sprinkling chamber is connected with a water tank through a water pipe; the bottom of the water pipe is connected with a sprinkling pipe; sprayers are connected to the bottom of the sprinkling pipe at equal intervals; the bottom of the sprinkling chamber is connected with a water collection tank through a water collection pipe; the inner cavity of the water collection tank is provided with a first baffle wall, a second baffle wall and a heater; a first filter net is arranged on the bottom of the first baffle wall; a second filter net is arranged on the top of the second baffle wall; the top of the right side of the water collection tank is connected with a water mist cavity through an air outlet pipe; an air suction fan is arranged on the right side of the water mist cavity; and an air outlet is arranged on the right side of the air suction fan. By adopting the ventilator, a good working environment is provided for working personnel, so that the problem that mine exploitation efficiency is affected is effectively solved.

The invention discloses a multi-pipe type centrifugal solid-liquid separation machine. The multi-pipe type centrifugal solid-liquid separation machine is characterized by comprising a stationary feed inlet, an upper conical shell, a main shell, a skirt base, a movable feed inlet, a revolving drum assembly, a transmission assembly, a top bearing assembly, filter cartridges, a liquid outlet, a main motor, a key, a main belt wheel, a belt and a slave belt wheel, and further comprising ratchet wheels, driving pawls, stop pawls, driving handles, hydraulic cylinders, branch oil pipes, a main oil pipe assembly, a movable-stationary connector, a main oil pipe, a hydraulic station and a control cabinet; the exterior is sequentially connected with the stationary feed inlet, the upper conical shell, the main shell and the skirt base from top to bottom, and the movable feed inlet, the revolving drum assembly and the transmission assembly are sequentially and coaxially assembled inside; the six to eight filter cartridges are evenly installed in the circumferential direction of the revolving drum assembly, the angle between the axes of the filter cartridges and the central axis of the revolving drum assembly is three to seven degrees, and a ratchet wheel mechanism and a hydraulic system are matched to drive the filter cartridges to rotate; and the control cabinet is connected with the main motor and the hydraulic station through cables. The problems that meshes of filter screens are prone to blockage and filter production is not continuous are solved, and the multi-pipe type centrifugal solid-liquid separation machine is simple in structure and convenient to maintain.

The invention relates to maleic anhydride melt-grafted ABS and a preparation method thereof. The maleic anhydride melt-grafted ABS comprises the following components by weight percent: 94-98% of ABS, 0.5-2% of maleic anhydride, 0.5-2% of styrene, 0.2-1% of odorless initiator and 0.2-2% of antioxidant. The maleic anhydride melt-grafted ABS has high grafting efficiency and low odor and can be used as the compatilizer of PC / ABS; and performance tests prove that when the compatilizer is used in PC / ABS alloy, the compatibility of alloy is good and the performance is excellent.

The invention discloses an integrated template pipe rack and a building method thereof. A cushion layer is included, and a waterproof part is arranged on the top of the cushion layer; a waterproof protecting layer is arranged on the top of the waterproof part; a pipe rack outer wall is installed on the top of the cushion layer, and a pipe rack inner wall, a pipe rack bottom plate and a pipe rack top plate are installed in the pipe rack outer wall; rebars are installed between the pipe rack outer wall and the pipe rack inner wall and between the pipe rack bottom plate and the pipe rack top plate; and the rebars are connected with a high-strength cement-based material template through rear inserted rebars. According to the integrated template pipe rack and the building method thereof, structural main bars and the template are customized and formed at a time in a factory, a pipe rack structure is assembled in site, one-time pouring is performed, and the template is not disassembled; in the time for earth excavation in site, a factory prefabricated structure is completed, and the construction period is saved; a surface template is prefabricated in a factory, and is more attractive thana surface template cast in situ; and worker in situ are migrated into the factory for operation, a better work environment is provided, and labor protection is facilitated.

The invention discloses a novel film covering type organic fertilizer thermophilic fermentation technology. The technology comprises following steps: step one, civil sludge, auxiliary materials and microbial flora are mixed in proportion, and backfill is added after the mixing; step two, mixed materials obtained in the step one are guided into a fermentation tank for heap building, and first-stageaerobic fermentation is performed under film covering positive pressure; step three, the mixed materials subjected to the first-stage aerobic fermentation in the step two are subjected to film opening and turning; step four, the mixed materials after film opening and turning in the step three are fermented without film covering. Compared with the prior art, the film covering type organic fertilizer thermophilic fermentation technology has beneficial effects that most biological deodorization systems and turning and throwing equipment are omitted, cost input of an enterprise is reduced, furthermore, the technology has the advantages that no malodorous gas escapes, the labor hygiene environment is good and secondary pollution risk is avoided, the problem about recycling of solid waste treatment units is solved, and waste residues, waste gas and waste liquids are not produced.

The invention discloses an industrial plate mechanical edge grinding device which comprises a base, an adjusting plate, a clamping device, an edge grinding device and a dust collection device. A mounting groove is arranged on the upper end face of the base. The two sides of an adjusting plate are in sliding connection with stand columns. Electric telescopic rods are symmetrically arranged betweenthe adjusting plate and a transverse plate. The clamping device comprises a double-shaft motor, a first lead screw and a second lead screw. First sliding blocks are arranged on the first lead screw and the second lead screw. A connecting rod is fixedly arranged on each first sliding block. A U-shaped clamp block is welded to the inner side of each connecting rod. The edge grinding device comprisesa first motor, a second motor and a third lead screw, and a frosting roller is arranged on an output shaft of the second motor. The dust collection device comprises a dust collector body and a dust collection head, and the dust collection head is arranged on the side face of a second sliding block. According to the industrial plate mechanical edge grinding device, clamping can be adjusted according to the sizes of plates, machines replace manpower, and the four sides of each plate are subjected to uniform frosting treatment; and the dust collection device is arranged, dust generated by frosting can be absorbed, and a good work environment is guaranteed.

The invention provides a device for monitoring components in a server. The device comprises an acquisition module, a processing module and an indication module, wherein the acquisition module is used for sensing the components in the server and transmitting sensing information with a sensed vibration parameter; the processing module is used for receiving the sensing information from the acquisition module, comparing the vibration parameter with a vibration threshold and transmitting the result information with a comparison result; and the indication module is used for receiving the result information from the processing module and indicating diagnostic information related to the components according to the comparison result. By utilizing the device for monitoring the components in the server, disclosed by the invention, fan vibration can be monitored in real time in the operation peroid of the server, damages to the hard disk even the server due to the overlarge vibration of the fan are avoided, and better working environment is provided for the hard disk, therefore stability and completeness of hard disk data are ensured, and safe and stable operation of a server system are further ensured.

The invention discloses an auxiliary device for installing a primary truss during construction of a large-span truss type steel structure roof, and an installation method. The device comprises four groups of mechanical arms used for drawing base plates (14); each group of mechanism arm comprises a fixed plate (15), a vertical cylinder (16), a rotary cylinder (17) and a transverse cylinder (18); each fixed plate (15) is connected to one support leg (12.1) of the primary truss (12) in a detachable way, a cylinder body of each vertical cylinder (16) is fixed on the corresponding fixed plate (15), piston rods of the vertical cylinders (16) are fixed with fixed parts of the rotary cylinders (17), rotating parts of the rotary cylinders (17) are fixed with cylinder bodies of the transverse cylinders (18), and fixtures used for clamping the base plates (14) are fixed on piston rods of the transverse cylinders (18). The installation method is characterized by utilizing the mechanism arms to automatically draw the base plates (14). After the auxiliary device and the installation method are used, the base plates (14) can be automatically drawn.

The invention discloses a tantalum steel composite plate and a preparation method thereof. The tantalum steel composite plate comprises a tantalum plate layer and a steel plate layer, and a diffusionlayer is formed between the tantalum plate layer and the steel plate layer. The preparation method of the tantalum steel composite plate comprises the following steps: material selection, surface treatment, separant painting, tantalum plate welding, assembling (including periphery welding, ventilation tube welding, gas tightness inspection, vacuumizing and inert gas filling), heating, rolling, heat treatment, leveling, trimming, surface treatment, finishing composite plate. This method has low requirement for production site and is high in production efficiency and low in production cost.

The invention discloses an automatic paint spraying device for a round tabletop. The automatic paint spraying device for the round tabletop comprises a paint spraying box; a paint spraying cavity is formed in the paint spraying box; an inlet is formed in the right wall of the paint spraying cavity in a penetrating manner; an inlet plate which is fixedly arranged on the right surface of the paint spraying box is arranged on the right side of the inlet; an outlet is formed in the left wall of the paint spraying cavity; an outlet plate which is fixedly arranged on the left surface of the paint spraying box is arranged on the left side of the outlet; a paint spraying mechanism used for performing rotary paint spraying is arranged on the top wall of the paint spraying cavity; the paint sprayedon the tabletop is more uniform; the quality is better; meanwhile, the paint is sprayed in the paint spraying cavity, which can avoid the paint spraying outside; the working environment is better; thepaint which is sprayed out of the round tabletop and is difficult to clean does not need to be cleaned; the labor intensity is reduced; the work efficiency is improved; meanwhile, excessive paint canflow to the lowest side along the paint spraying cavity and reutilized; the waste of mist paint cannot be caused; and the paint can be saved.

The invention discloses an external dredging machine for a bin, which comprises a hydraulic cylinder and a dredging harrow, wherein the hydraulic cylinder is vertically arranged outside the bin, the dredging harrow is vertically arranged inside the bin, and a piston rod of the hydraulic cylinder is in driving connection with the dredging harrow by a driver. The hydraulic cylinder is arranged outside the bin, so that the external dredging machine not only is better in work environment condition, and but also is easy to maintain, overhaul and change. The driver adopts the principle of a lever, so that the dredging harrow is easy to move up and down for dredging.

The invention discloses a dustless sawing machine. The dustless sawing machine comprises a frame, a cutting device and a dust sucking device; and the frame comprises a working platform. The cutting device comprises a cutting piece, and is assembled to the working platform to enable the cutting piece to penetrate through the working platform; and one part, projected on the working platform, of the cutting piece forms a machining part. The dust sucking device comprises a bottom dust sucking module, a top dust sucking module, and a dust sucker body respectively connected with the bottom dust sucking module and the top dust sucking module; the bottom dust sucking module covers the cutting piece positioned on one side of the working platform; and the top dust sucking module covers the machining part. Dust generated by cutting boards with the cutting device is recovered by the dust sucking device, and is prevented from falling to bodies of operators, so that the working environment of the operators is good. The top dust sucking module adopts a brush piece to stop floating out of the dust, so that the cutting of the boards is not influenced, and the use is convenient.

The invention discloses a stonewashing treatment device for jeans treatment in the garment field and relates to the technical field of stonewashing treatment of garments. The stonewashing treatment device for jeans treatment in the garment field comprises a supporting platform; a supporting rod, a first supporting block, a sundries box, a first connecting rod, a stirring barrel, a drying box and apigment box are welded to the outer surface of the top of the supporting platform, a first mounting rod is welded to the outer wall of one side of the supporting rod, a transverse plate is slidably mounted on the first mounting rod, a hydraulic rod is welded to the outer surface of the bottom of the transverse plate, and a second connecting block is welded to the outer wall of one side of the hydraulic rod. According to the old treatment device for jeans treatment in the garment field, dust in a stonewashing process can be effectively sucked into an adsorption box, the health problem of operators can also be protected more effectively, and a better working environment is provided for the operators.

The invention provides a transmission device of a top cross 45-degree continuous rolling machine unit. The transmission device comprises a reversing speed changing distribution device provided with two output shafts, rotating center lines of the two output shafts are both arranged perpendicular to the rotating center line of an input shaft, the rotating center line of the input shaft is perpendicular to the rolling center line of the top cross 45-degree continuous rolling machine unit, and the two output shafts are respectively connected with input shafts of a pair of driven bevel gear boxes of an adjacent machine frame. The transmission device further comprises a driving motor arranged on one side of the rolling center line of the top cross 45-degree continuous rolling machine unit, the rotating center line of an output shaft of the driving motor is arranged perpendicular to the rolling center line of the top cross 45-degree continuous rolling machine unit, and the output shaft is connected with the input shaft of the reversing speed changing distribution device. In the transmission device of the top cross 45-degree continuous rolling machine unit, the driving motor is arranged on one side of the rolling center line and is good in working environment and convenient to maintain.

The invention discloses a non-pitwood withdrawing method for hydraulic supports during fully mechanized face withdrawing. According to the method, a withdrawing lane, hydraulic supports, single hydraulic props and mobile-supporting shield hydraulic supports are mainly included. The method is characterized in that the recyclable single hydraulic prop capable of being repeatedly utilized is adopted for replacing a raw wood mass point pillar supporting top plate, meanwhile, the two fully mechanized face mobile-supporting shield hydraulic supports are adopted as mobile supporting platforms used for withdrawing of other hydraulic supports, and top plates of a haulback region sequentially withdraw the other hydraulic supports after the supporting hydraulic supports are withdrawn; in the withdrawing process, the two mobile-supporting shield hydraulic supports are pulled by means of the cooperation of a self-moving function and slow winching to move upwards in a staggered mode, then, false roofs laid by net ropes of the haulback region slowly sink, and the phenomenon that pressure is exerted on the top plates suddenly and the top plates fall down to the haulback region is avoided, so that the safety is improved, and no pitwood consumption is generated. According to the non-pitwood withdrawing method, safe and rapid withdrawing of the fully mechanized face hydraulic supports can be achieved, and the safety of the hydraulic support withdrawing operation is greatly improved.

The invention belongs to the field of farm produce processing, in particular to a vacuum drum filter and an operating method thereof prior to the ultrafiltration of fruit / vegetable juice. The operating steps include: precoating, material feeding, cutting feed, filtrate collection and cleaning. Before the ultrafiltration of the fruit / vegetable juice, if the viscosity of the material is overhigh and impurities are excessive, the flux of ultrafiltration can be affected, and as a result, the whole continuous fruit / vegetable juice production process can be affected. After the fruit / vegetable juice is filtered by a vacuum drum, the viscosity of the fruit / vegetable juice is decreased, impurities are reduced, consequently, the flux of the ultrafiltration of the fruit / vegetable juice is increased, the flux decrease rate is decreased, and the energy consumption of production is reduced.

The invention belongs to the field of infrastructure engineering technology construction, and relates to a small-section long-distance soft rock tunnel construction method. According to the method, the excavation technology for the small-section long-distance soft rock tunnel is summarized; in the construction process, the ventilation, smoke exhaust and water drainage methods of the tunnel are studied; a primary support section form is designed according to the type of tunnel surrounding rock; and through the research on the difficulty in concrete transportation and warehousing strength in thetunnel lining construction since the surrounding rocks are divided into IV type and V type, the rocks are soft rocks and extremely soft rocks, and the tunnel construction is influenced by ''small'' and ''long'', the characteristics of the project and the requirements on the engineering construction technology and quality are combined, and the on-site construction process is improved and optimized, so that the safe and efficient construction purpose is gradually achieved.

The invention provides a pinch plate powder mixer which belongs to the technical field of machinery and is used for solving the technical problems that in the prior art, the powder mixed charges and discharges manually, powder is easy to suck in by people, the working environment is severe, the charging and discharging efficiency is low and the like. the pinch plate powder mixer comprises a rack, wherein the upper part of the rack is connected with a rotary stirring cylinder; the lower part of the rack is fixedly connected with a storage shell I with an empty cavity inside; the stirring cylinder is cylindrical, and one end of the stirring cylinder is opened; the opening part of the stirring cylinder is connected with a valve capable of opening and closing the stirring cylinder; the top of the storage shell is provided with a material inlet communicated with the inner cavity; the stirring cylinder rotates so as to enable the opening to be opposite to the material inlet; the rack is also connected with a screen element; a connecting pipe I for communicating the stirring cylinder and the screen element is arranged between the stirring cylinder and the screen element. The pinch plate powder mixer has the advantages of charging and discharging automatically, and good stirring effect.

The invention relates to a pseudo-ginseng ploughing rotary tillage raker, and belongs to the field of agricultural machinery and equipment. The raker comprises a suspension part, a power transmissionpart, a rotary tillage and soil preparation machine part, a harrowing and soil preparation machine part and a supporting part; the suspension part is responsible for being connected with a power device which is in forward operation to drive subsequent machine units to operate; the power transmission part is used for transmitting the power part of output by the power output shaft of the power device to a cutter roller and a shaft of the rotary tillage machine through two stage speed change of a gear set to promote the operation of the rotary tillage machine; the rotary tillage and soil preparation machine part is used for milling and crushing the soil in the field; the ploughing and soil preparation machine part is used for crushing residual large clods after the rotary tillage and soil preparation machine part conducts crushing to further level the land. The raker solves the problems that soil blocks cut by blades of the rotary tillage machine are too large, if tweezers are manually used for breaking the clods, the work intensity is high, the efficiency is low and the costs are high; the integration process of the ploughing and the soil preparation before sowing of pseudo-ginseng is completed.

The invention relates to a negative pressure portable disassembling device for a mobile phone. The device comprises a body, feet, a shell, and a panel. An upper left rail and an upper right rail are arranged on the two sides of the panel. A flexible roller capable of moving back and forth is arranged on the upper left rail and the upper right rail. A control panel is arranged on the front side ofthe shell, and a power supply jack is arranged on the lateral side of the shell. A left vertical baffle, an upper transverse baffle, a lower clamping part, and a right clamping part are arranged on the panel. The device further comprises a bottom heating device, and a pollution gas treatment device. The bottom heating device is arranged at the lower portion of the panel. The bottom heating devicecomprises a heating wire and a temperature sensor. The pollution gas treatment device comprises a negative pressure air inlet, an adsorption assembly, a filtering assembly, and an eddy current induceddraft fan. The adsorption assembly comprises a strip-shaped activated carbon adsorption block, a mesh cage type fixing mesh, and a gas flow path. The negative pressure portable disassembling device for the mobile phone can protect staff when the mobile phone is disassembled, provide a good working environment, and is convenient to carry.

The invention relates to the field of flue gas denitration catalyst equipment, and in particular relates to a folding fan type catalyst module, the folding fan type catalyst module comprises a box body and catalyst components which are arranged in a folding fan type in the box body, wherein the catalyst components comprise a plurality of catalyst units, the box body penetrates back and forth and comprises a top plate, a side plate and a bottom plate; a vertical plate is arranged between the top plate and the bottom plate of the box body and is used for connecting and fixing the catalyst components; the folding fan type catalyst module solves the problems of small catalyst arrangement volume, small contact area between flue gas and a catalyst, large pressure loss, relatively high resistanceand insufficient denitration performance of the catalyst in a denitration reactor in the prior art, greatly increases the contact area between the flue gas and the surface of the catalyst units, reduces the pressure loss of the flue gas passing through the catalyst, and improves the catalytic effect.

The invention discloses a multi-ingredient stirring and mixing device with silencing and damping functions for bioengineering. The device comprises a stirring tank and an upper cover, the upper coveris connected with the stirring tank through a buckle; a first feeding hole and a second feeding hole which are communicated with the interior of the stirring tank are respectively formed in the uppercover; the bottom of the stirring tank is connected with a material guide pipe provided with a ball valve. The device also comprises a pneumatic driver which is installed on the central axis in the stirring tank in the vertical direction and is in a round rod shape, and a stirring assembly and a driving box which are connected to the circumferential surface of the pneumatic driver in a sleeving mode. The driving box is in driving connection with the stirring assembly. The pneumatic driver is used for replacing the traditional motor drive, the stirring assembly is driven by the pneumatic driverto vertically move up and down in the stirring tank, vibration of the whole device is reduced, the motor for driving the stirring assembly is installed in the driving box in a sealed mode, the driving box is installed in the stirring tank, and noise is isolated through sound insulation and sound absorption materials filling in the inner wall of the stirring tank.

Belonging to the technical field of emotion analysis, the invention particularly relates to an intelligent engineer emotion monitoring system, which comprises an emotion data monitoring unit, a main control unit and an emotion analysis unit. The emotion data monitoring unit and the emotion analysis unit are both connected to the main control unit; the emotion data monitoring unit is used for collecting emotion comprehensive data of engineers and transmitting the emotion comprehensive data to the control unit; the emotion analysis unit is used for processing, analyzing and judging the engineeremotion data acquired by the emotion data monitoring unit so as to obtain engineer emotion state data. The system provided by the invention can be used for real-time acquisition of emotion data in theworking process of engineers and transmission of the collected data to the emotion analysis unit through the main control unit, the emotion analysis unit can perform analysis on the emotion data of engineers so as to obtain the emotional state of engineers. Therefore, the emotional state change of engineers can be known timely, and companies can make response policies and ease the emotion of engineers in time.

The invention discloses an automatic streamlined operating platform for anti-corrosion prestressed concrete tubular piles. The automatic streamlined operating platform comprises two parallel operational rails, wherein an agitating zone, a centrifugal zone, a room temperature steam-curing zone, a high temperature steam-curing zone and a tubular pile stacking zone are sequentially arranged on each operational rail, transport vehicles run between the centrifugal zones and the tubular pile stacking zones, and tubular die transmission chains or crawler belts are arranged on the rails; slurry transport trolleys are arranged on the rails between the agitating zones and the centrifugal zones; a tensioning machine rail is arranged between the centrifugal zones on the two rails, and a tensioning machine runs on the tensioning machine rail; steel reinforcing cage manufacturing and grouting zones which are connected with the centrifugal zones through the rails are arranged at the outer sides of the centrifugal zones. The automatic streamlined operating platform adopts a reasonably configured uni-directional operational system to perform production and has the advantages of simplicity in operation, great operation environment, low labor intensity, few potential safety hazards, high production informatization degree and the like. The efficiency is increased by 20-30%, the per capita output is increased by 100-200%, the lifting times is reduced by five to six times, and cross driving operation is avoided.

The invention discloses a method for extracting a glutamic acid from glutamic acid centrifugation mother liquid. The extraction method comprises the following steps of: (1) filtering the glutamic acid from glutamic acid centrifugation mother liquid by virtue of a membrane and removing thalluses to obtain a clarified glutamic acid mother liquid; (2) decoloring the glutamic acid mother liquid by using hybridization resins and eluting the resins to obtain eluant; and (3) evaporating, concentrating, crystallizing, centrifugally separating, washing and drying the obtained eluant to obtain a glutamic acid crystal. According to the method, most of glutamic acid is recovered from the glutamic acid centrifugation mother liquid, so that the yield of the glutamic acid is increased, and the economic benefit of factories is further improved; a majority of thalluses and proteins in the mother liquid are removed, and the recovered glutamic acid clear liquid can be directly utilized, so that the high workload in the other methods is reduced; addictive is not added and a changing process is not carried out, so that the denaturation of the glutamic acid is prevented; and moreover, wastewater is hardly generated in an organic ceramic membrane process, thus reducing wastewater treatment pressure.