180results about How to "Does not affect processing" patented technology

The invention provides a multicore-oriented reconfigurable fault tolerance system and a multicore-oriented reconfigurable fault tolerance method. A multi-core processor reconfiguration strategy based on an SOC (System On chip) is adopted for design, a multicore fault tolerance mechanism based on system degradation is provided; by virtue of reconfiguration of working modes of a multi-core processor, the reliability and fault tolerance capability of the system are improved, so that the multicore-oriented reconfigurable fault tolerance system is applicable to complex and severe-environment engineering application such as deep-space exploration.

The invention discloses a plate-strip surface quality detection system, the plate-strip surface quality detection system and a plate-strip production line are in on-line running, the plate-strip surface quality detection system is characterized by comprising an image sampling device, a processing device and a control device; the image sampling device is used for real-time acquisition of plate-strip surface optical features from the plate-strip production line to obtain plate-strip images; the processing device is used for extracting plate-strip image defect information, packing the image defect information and processing position tag to obtain defect treatment results; and the control device is used for plate-strip surface quality evaluation according to the defect treatment results. The detection system collects the plate-strip surface optical features on the basis of machine vision technology to obtain the plate-strip images, the treatment results are obtained by feature information extraction and the subsequent processing, the defect is determined according to the treatment results, the missing inspection rate can be reduced, labor cost can be reduced, the normal plate-strip processing may not be affected in the detection process, alarms of unqualified products are issued, the unqualified products are removed, and the detection accuracy and the rate of qualified products can be improved.

The invention discloses a controllable wedge pre-tightening mechanism for the micro platform of a compliant mechanism. The controllable wedge pre-tightening mechanism comprises a microcalliper, a pedestal, a spring, a vertical moving wedge, a horizontal moving wedge, a piezoelectric ceramic and a platform. When the piezoelectric ceramic is mounted and dismantled, the process can be finished only by wringing the microcalliper, the regulation and the maintenance are convenient, and the pre-tightening is stable. Since the extent of pre-tightening can be accurately controlled in real time through the microcalliper, the blindness of pre-tightening is avoided. The height of a vertical moving wedge inclined face is lower than that of a horizontal moving wedge inclined face, thus the scope of pre-tightening is enlarged. The controllable wedge pre-tightening mechanism for the micro platform of the compliant mechanism is an independent module, and the processing of the platform is not affected.

The invention discloses a desulfurizer used for extraction of crude oil containing hydrogen sulfide and treatment of sewage containing hydrogen sulfide. The desulfurizer comprises, by mass, 25 to 40% of hydroxyethyl-hexahydro-s-triazine, 5 to 10% of micro-molecular alcohol, 1 to 2% of an osmotic agent sodium sulfosuccinate, 1 to 2% of acetic acid, 0.1 to 0.2% of sodium acetate and 0.02 to 0.04% of an antifoaming agent, with the balance being water, wherein the micro-molecular alcohol is methanol, or ethanol or a mixture of methanol and ethanol, and the antifoaming agent is a water-soluble polyether or silicone oil antifoaming agent. The desulfurizer provided by the invention has a simple formula, is intermiscible with water in any ratio and can effectively reduce hydrogen sulfide in crude oil or sewage; the desulfurizer rapidly reacts with hydrogen sulfide and a reaction product is soluble in water and does not block a pipeline; moreover, an s-triazine main agent has good scale-inhibition, anti-scale and sterilization properties; and the hydrogen sulfide removing agent in the invention overcomes the problems that an alcamine desulfurizer has rapidly reduced desulphurization efficiency at high temperature and hydrogen sulfide removed through reaction may be reversibly released again, and has a temperature application range of 0 to 120 DEG C.

The invention relates to a multi-characteristic information fusion method for target data correlation and belongs to the technical field of radar data processing. The method comprises the following steps: 1) trace point pretreatment: screening data and storing the screened data according to frame; 2) target classification: classifying targets into three classes according to target speeds; 3) point-point correlation: carrying out track initiation by utilizing an m / n logical approach, and adopting different correlation strategies for different types of targets; 4) point-track correlation: carrying out extrapolation on a target track, and searching target candidate echoes according to a Bayesian data correlation algorithm; 5) feature similarity computation: extracting feature information of the candidate echoes and calculating feature similarity; and 6) comprehensive correlation degree computation: calculating comprehensive correlation degree according to the feature similarity and feature weight, and selecting the candidate echo, the comprehensive correlation degree of which is the largest, as target measurement. The method can reduce the number of the target candidate echoes, reduces operation burden, improves reliability of data correlation under a dense clutter background, and has a popularization and application value.

The invention discloses a cam grinding control system and a method on the basis of a PC and an infrared thermal imager. The system comprises a cam to be processed, a grinding wheel bracket, a PC machine, a control unit, a servo motor, a ballscrew, a linear motor, a mainshaft unit and a grinding wheel; the infrared thermal imager is fixedly connected with the grinding wheel bracket by a connecting rod; the camera of the infrared thermal imager aims at the processing surface of the grinding wheel; the output port of the infrared thermal imager is connected with the PC machine by a 1394 interface; the method uses the temperature field data at the processed area of the grinding wheel measured by the infrared thermal imager as the input variable, and dynamically tracks and adjusts the rotation speed of the grinding wheel mainshaft unit and the feeding quantity of the grinding wheel by a fuzzy control algorithm carried out by the PC machine, thus reasonably applying the grinding process with ensured quality and achieving the control in real time is carried out while the processing efficiency is ensured.

The invention relates to a bus positioning method based on double-beacon and double-module communication. A label device of a vehicle-mounted terminal based on a radio frequency identification (RFID) technique is installed on a bus, and a benchmark device comprising a card reader and an information releasing unit are arranged in an intermediate terminal bus shelter. A double-beacon mode is adopted for positioning the bus, a vehicle-mounted intelligent terminal based on combination of RFID beacon positioning and global positioning system (GPS) positioning serves as the main beacon, a short-distance communication module and an independent GPS module are combined to serve as an auxiliary beacon, a communication module is additionally arranged in the intermediate terminal bus shelter to serve as an auxiliary information channel, and the short-distance communication module and a remote wireless communication module are arranged in the information releasing unit of the intermediate terminal bus shelter. A communication device of the intermediate terminal bus shelter and the vehicle-mounted intelligent terminal of the bus adopt different wireless communication operators. Effective data amount of the bus positioning method is 2.5 times as that of the vehicle-mounted terminal, and 99% of data of a label are delayed within 15 seconds, and information is accurate and timely.

The invention relates to an uvioresistant weather fastness ASA resin, a co-extrusion plastic product, a plastic thin film and a plastic product, wherein the uvioresistant weather fastness ASA resin comprises the following components according to weight percentage: 28%-96% of acrylonitrile-styrol copolymer, 3%-70% of polyacrylic core-shell copolymer, and 0.1%-5% of assistant. The uvioresistant weather fastness ASA resin is poly-blended with SAN through the polyacrylic core-shell copolymer (PBA-MMA), so that the weather fastness and low-temperature or room-temperature shock resistance of the ASA resin are remarkably improved, and the other physical properties of the ASA resin are not affected. The ASA resin has an excellent property of ultraviolet resistance as well as weather fastness, is easy to process, is further excellent in surface cleanness, keeps excellent rigidity, and is widely applied to various co-extrusion plastic products and thin films.

The invention relates to a vertical measuring system capable of adjusting a zero-plane position, which comprises a double optical wedge mechanism. The double optical wedge mechanism is positioned in the light path of the vertical measuring system and used for changing the offset of light beam in the light path. The double optical wedge mechanism comprises a first wedge and a second wedge which are both arranged along the light path in sequence, wherein the first wedge comprises an incident face and a first inclined plane; the second wedge has the same wedge angle and refractive index as the first wedge and comprises an exit face and a second inclined plane, wherein the exist face is parallel with the incident face, and the second inclined plane and the first inclined plane are opposite to and parallel with each other. When the first wedge and the second wedge move facing to each other along the horizontal direction and the vertical direction, the offset of an incident beam is changed. The invention has the advantages of simple structure, favorable flexibility, fast adjusting speed and high precision.

The invention discloses an internet bank simulation system and method. The internet bank simulation system includes a communication module, a data packet decoding module, a signature verification module, and a bank service simulation module; the communication module stores a corresponding relation between a communication port and a transaction type of a bank channel, receives a call request initiated by an internet payment application, matches a corresponding communication port according to a bank channel of the call request, and sends a data packet of the call request to the corresponding communication port; the data packet decoding module decodes the data packet according to a protocol type, and sends the decoded data to the signature verification module; the signature verification module performs signature verification on the decoded data, and sends the decoded data to the bank service simulation module after signature verification; and the bank service simulation module verifies payment information according to the decoded data. The internet bank simulation system can avoid repeated work, and can save test resources.

The invention discloses a Tribonema sp. PD2 strain with a preservation number of CGMCC No.10488, and application thereof in the production of biodiesel, palmitoleic acid, feed, food, skin care products, and therapeutic drugs for cardiovascular and cerebrovascular diseases, and in the carbon dioxide emission reduction, and waste gas treatment and / or wastewater treatment. The Tribonema sp. PD2 strain has the advantages of fast growth, high biomass and easiness in harvesting, and is suitable for industrial application. The oil content of the Tribonema sp. PD2 strain is as much as 60% or more of the dry biomass, wherein the content of C16-C18 is as much as 85% of the total fatty acids, the content of the palmitoleic acid (C16:1omega7) is no less than 45% of the total fatty acids, and the content of the total unsaturated fatty acids is as much as 65% of the total fatty acids. Therefore the Tribonema sp. PD2 strain is especially suitable for the production of biodiesel and the development of health care products and foods.

The invention relates to the technical field of lotus root processing, and discloses an apparatus used for washing lotus roots. The apparatus used for washing lotus roots comprises a machine frame, amotor, and a washing barrel arranged with an opening at an upper part; an output shaft of the motor is arranged downward, and is fixed with the washing barrel; a plurality of washing rods are hinged with two inner sides of the washing barrel; two push rods are arranged in the washing barrel, and are respectively in fixed connection with corresponding washing rods; permanent magnets are fixed at bottoms of the push rods; electromagnets are fixed, under the permanent magnets, on the washing barrel; a collection barrel is fixed, outside the washing barrel, on the machine frame in rotating connection; sewage holes are arranged on side walls of the washing barrel; a filter screen is fixed at a bottom of the collection barrel; discharge rods are arranged at a bottom of the washing barrel; air inlet units and air outlet units are fixedly arranged at two sides of the discharge rods; airbag strips are arranged between the air inlet units and the air outlet units; and the air inlet units are used for inflating the airbag strips while the air outlet units are used for deflating the airbag strips. The apparatus used for washing lotus roots is simple in structure, and capable of performing multiple times of washing on lotus roots so as to ensure thorough washing of the lotus roots.

The invention provides a mercury concentration on-line detection method in smoke gas. The method of the invention comprises the following steps: carrying out on-line sampling in a smoke gas pipeline; firstly, using a water treatment solution for carrying out reaction and dust removal treatment on the smoke gas; then, introducing the treated smoke gas into a Zeeman effect mercury analysis instrument to be measured; and obtaining the total mercury concentration in the smoke gas through respectively measuring and calculating the water-soluble mercury concentration in the water treatment solution, the mercury concentration in the smoke gas after the reaction and dust removal treatment and the mercury concentration in insoluble smoke dust precipitates. The method adopts a method of on-line sampling and on-line test, does not influence the treatment of the actual engineering on the coal-fired smoke gas, and does not need spun gold enrichment preliminary treatment with high cost, so the relevant problems of spun gold enrichment can be eliminated, and the cost is saved. At the same time, the invention avoids the influence of the dust on the Zeeman effect mercury analysis instrument, trulyreflects the removal rate on the soluble mercury in the smoke gas in the wet method desulfurization process in coal-fired power plants, and has the directive significance to the demercuration purification of the coal-fired smoke gas in the actual engineering.

The invention relates to corrosion-resistance nickel-based alloy powder for use in plasma spray welding. The corrosion-resistance nickel-based alloy powder comprises the following components in percentage by weight: 20-25 percent of Cr, 10-18 percent of Mo, less than or equal to 3 percent of Cu, less than or equal to 4 percent of Fe, less than or equal to 4 percent of Nb, less than or equal to 1 percent of Al, less than or equal to 3 percent of Si, less than or equal to 0.01 percent of C, less than or equal to 0.1 percent of O and the balance of Ni. The granularity of the alloy powder is 40-500 meshes. The nickel-based alloy powder has the advantages of suitability for reductive corrosive media, suitability for oxidative corrosive media, excellent corrosion prevention generality and applicability to flue gas corrosion protection during burning of coal with high sulfur content, high chlorine content and high alkali content. During plasma spray welding of equipment such as a boiler, a spray welding layer is controllable in thickness, so that the weight of the boiler equipment can be increased controllably; the hardness of the spray welding layer is smaller than the hardness of an original substrate material, so that the machining and manufacturing of equipment are not influenced; when the powder is spray-welded on the heating surface of the boiler, the linear expansion coefficient of the spray welding layer is approximate to that of the original substrate material without influencing the thermal expansion and cold contraction of the heating surface or increasing the internal stress of heating surface equipment.

The invention discloses a plasma etching reactor. The reactor comprises a cavity, a to-be-treated substrate is arranged in a space formed through the surrounding of the cavity, an upper side of the substrate comprises a reaction space, the reaction gas and radio frequency power are conveyed to the reaction space to form plasma to etch the substrate, an anti-plasma coating is formed on an inner wall surface of the cavity, thereby preventing plasma for etching a wafer in the cavity from corroding, and the roughness of a surface material layer of the anti-plasma coating is not more than 1 micron,and the porosity of the surface material layer of the anti-plasma coating is lower than 1%, and the thickness is greater than 10 microns; and the surface material layer of the anti-plasma coating iscomposed of compound including fluorine and yttrium. The reactor disclosed by the invention has the advantages of improving the structure stability of the internal surface of the plasma cavity or thecavity inner wall surface, improving the performance of the plasma etching process, satisfying a requirement of an advanced plasma etching process and reducing the production cost.

The invention discloses a metallurgical cooling and air-drying mechanism, and relates to the field of metallurgical equipment. According to the technical scheme adopted by the invention, the metallurgical cooling and air-drying mechanism comprises a conveyor belt as well as a cooling part and an air-drying part which are sequentially arranged on the conveyor belt; the conveyor belt is a chain wheel power roller type conveyor belt; the cooling part comprises a spraying head arranged above the conveyor belt; the spraying head is connected with a water tank through a water tube and a pressurizing water pump; and a water box is arranged at the lower side of the conveyor belt. The metallurgical cooling and air-drying mechanism disclosed by the invention has the beneficial effects that blank is cooled by adopting a mode of water-cooling and high-pressure gas air-drying, a blank cooling effect is guaranteed without a heating and drying structure, and the blank cooling effect is not affected by re-heating. Water flow and gas flow can flow out from a conveyor roller, so that all-around processing of cooling and dehumidifying can be achieved, and a no-dead-corner processing mode is basically guaranteed. Cooling water is recycled basically without loss except from the gasified part due to cooling.

The invention discloses a rough-finish multi-blade boring tool comprising a tool body (1), rough boring blades (5) and finish boring blades (4). The tool body (1) at least comprises two radial projections (2). At least one radial projection (2) is provided with one finish boring blade (4), and an open slot (3) forms at the junction of each radial projection and the tool body (1). Each radial projection (2) with one open slot (3) is provided with a threaded through hole (8) which fits an adjusting screw (6). Each rough boring blade (5) is mounted on the corresponding radial projection (2) with no open slot (3) through a screw (7). Each finish boring blade (4) is mounted on the corresponding radial projection (2) with one open slot (3) through another screw (7). Horizontal plane of the finish boring blades (4) is lower than the horizontal plane of the rough boring blades (5). The rough-finish multi-blade boring tool is available for simultaneous completion of rough boring and finish boring, so that work time is reduced and work efficiency is improved.

The invention provides an adjusting method and device of a service node and equipment. The adjusting method of the service node comprises the steps of obtaining a change instruction request of changing the service node, wherein the change instruction request comprises instruction information carrying the attribute of cached information of a to-be-changed service node, and the to-be-changed service node comprises an added service node or a reduced service node; analyzing the attribute of the cached information of the to-be-changed service node in the instruction information based on the change instruction request; obtaining the cached information of the to-be-changed service node; and sending the cached information not belonging to the to-be-changed service node to an attributive node based on the attribute, wherein the cached information is sequenced according to a time mark, and the time mark is the time taken for transmitting a message to a short message center by a same called number. Therefore, the message processing is guaranteed to be not affected by addition or deletion of the service node number, and the message transmission accuracy is also improved.

The invention relates to a cleaning bench and especially relates to a domestic sewage filtering and cleaning bench. The invention aims at solving the technical problem of providing a domestic sewage filtering and cleaning bench which has simpleness in operation, can filter impurities in sewage, further can sterilize the sewage, can be utilized repeatedly and can save water resources. In order to solve the technical problem, the domestic sewage filtering and cleaning bench disclosed by the invention comprises a box body, a water draining pipe, a first valve, supporting legs, a supporting block,a frame body and the like, wherein a feeding opening is formed in the left side of the top of the box body, the water draining pipe is connected to the lower part of the right side of the box body, the water draining pipe is communicated with the box body, the first valve is arranged on the water draining pipe, and the supporting legs are symmetrically arranged on the left side and the right sideof the outer bottom of the box body. By means of an automatic feeding device, the domestic sewage filtering and cleaning bench disclosed by the invention avoids manually pouring a disinfectant to sterilize the sewage; by means of a cleaning device, the inner lateral sides of the box body can be cleaned, and the next sewage treatment is not affected.

The invention relates to the field of punching dies and aims at providing a double-inclined-wedge lateral punching die and a punching method. The double-inclined-wedge lateral punching die comprises a lower die plate, a concave die, a convex die, a lateral compression block, an upper die plate, an air blowing pipe and a convex die resetting mechanism and a lateral compression block resetting mechanism, a punching die seat and a compression seat are arranged at the upper end of the lower die plate, the concave die is provided with a cutting edge hole and fixedly connected with the upper end of the punching die seat, the convex die is connected with the upper end of the punching die seat through a first sliding rail and provided with a punching head at the right end, the lateral compression block is connected with the upper end of the compression seat through a second sliding rail, a first inclined wedge, an upper compression head and a second inclined wedge are arranged at the lower end of the upper die plate, a first upper slope and a second upper slope are arranged at the lower ends of opposite side faces of the first inclined wedge and the second inclined wedge respectively, the convex die and the lateral compression block are provided with a first lower slope and a second lower slope respectively, and at least two pairs of guiding column guiding sleeves are arranged between the upper die plate and the lower die plate. The double-inclined-wedge lateral punching die is convenient to fix, and falling waste during punching is easy to clean and does not influence processing of subsequent workpieces.

The invention relates to a locating mechanism, in particular to a spring pin telescoping mechanism used in the machining process of blank location holes. The spring pin telescoping mechanism comprises a fixture plate. A guide holder is fixed to the upper portion of the fixture plate, and a linear cylinder is fixed to the bottom of the fixture plate. A piston rod of the linear cylinder penetrates out of the fixture plate and extends into a guide hole of the guide holder. A pull rod is connected to the end of the piston rod, a locating sleeve is fixed in the guide hole, and the pull rod is fixedly connected to an inner hole of the locating sleeve through a transversely-arranged round pin. A spring pin is arranged in the locating sleeve, a spring is arranged in a counter bore in the bottom of a locating pin, the bottom end of the spring abuts against an adjusting screw tightly, and the adjusting screw is arranged in the locating sleeve in a screwed mode and corresponds to the upper portion of the round pin. The spring pin telescoping mechanism is simple and reasonable in structure; through additional arrangement of the linear cylinder, the linear cylinder can be used for pulling down the spring pin when the spring pin needs to avoid a tool, and therefore the tool can be avoided.

The invention discloses water displacement type steel plate lubrication and rust prevention oil. The water displacement type steel plate lubrication and rust prevention oil is obtained by adding an antirust agent, a lubricant, a pour point reducer and an antioxidant to mineral oil, and used for sealing storage of cold-rolled steel coils and rust prevention of intermediate processes. The greatest advantage of the water displacement type steel plate lubrication and rust prevention oil is high water displacement property; by the adoption of the water displacement type steel plate lubrication and rust prevention oil, a small amount of moisture left on a leveled cold-rolled sheet can be separated from the sheet by means of an antirust additive with high adsorbability and small surface tension, so that a rust prevention effect is well realized; meanwhile, degreasing can also be achieved, degreasing rate reaches 80%, and follow-up processing can not be affected; rust prevention time is long, no oil patch residue is left, low temperature resistance is realized, environment friendliness is realized, no odor is generated, cost is reasonable, price is moderate, and extensive use can be conducted; the frequency of rust prevention maintenance can be reduced, maintenance cost can be reduced, environment friendliness and safety are realized, and three-waste emission is avoided in production and use.

The invention relates to a method for improving an adhesive force between a metal film layer and a high-dielectric-constant ceramic substrate and belongs to the technical field of fine processing of microwave integrated circuits. According to the method, array scribing type etching roughening treatment is performed on the surface layer of a substrate by adopting ultraviolet laser with specific performance; high-temperature calcination is performed on the coarsened substrate under a high-temperature condition on the basis of a specific temperature curve, so that the roughness Ra value of the surface of the substrate is stabilized within the range of 0.25-0.3 mm, and good roughening uniformity is achieved; and the adhesive force between the metal film layer and the high-dielectric-constant substrate which serves as a base material in the process of manufacturing a microwave integrated thin film circuit.

The embodiment of the invention provides a screen control method and device, electronic equipment and a storage medium. An image signal processor of the electronic equipment comprises a light-weight image front-end interface and an image front-end interface; a first camera is connected with a CSID; the CSID is connected with the light-weight image front-end interface of an ISP; and the light-weight image front-end interface is connected with a DSP; by distinguishing a low-power-consumption mode and a non-low-power-consumption mode, different processing mechanisms and algorithms are adopted fordifferent working modes to judge whether a screen turn-off state is entered or not, and a more optimized judgment mechanism is achieved, and whether the screen turn-off state is entered or not is judged more accurately; in addition, the face image acquired by the first camera is transmitted through the light-weight image front-end interface of the ISP, so that the efficiency of acquiring the faceimage by the first camera is improved.

The invention relates to the field of metal alloys, in particular to an alloy material resistant to high-temperature chlorine corrosion and an application method, and the alloy material comprises thefollowing components including, by mass percent, 30-45% of Cr, less than or equal to 3% of Cu, less than or equal to 2% of Ti, 0.01-5.00% of rare earth elements, less than or equal to 0.1% of C and the balance Ni. The corrosion-resistant alloy with the optimal comprehensive corrosion-resistant effect is formed by utilizing the interaction among the alloy components Ni, Cr, Cu and Ti and the corrosion resistance of the alloy components on high-temperature chlorine gas and chloride gas in an oxidizing medium and a reducing medium; meanwhile, the thickness of a coating formed by the alloy material can be easily controlled within a required range, the hardness of the coating processed by the provided corrosion-resistant alloy material is higher than that of an original base material, the wearresistance of a heated surface is improved, processing and manufacturing of equipment are not influenced, and the thermal expansion and cold contraction of the heated surface in an operation state arenot influenced; and the stress of heated surface equipment is not increased.

The invention discloses a compound machine tool for milling an end face and boring a center hole in an oblique guide rail. The compound machine tool comprises a base (1), a movable workbench (2), a workpiece positioning device (3), a milling device (4), a drilling device (5), a fixture (6) and a cooling and chip removing device (7), wherein the movable workbench (2) is arranged on the oblique table surface of the base (1); the workpiece positioning device (3) is arranged on the base (1); the chuck (6) is arranged on the movable workbench (2); the cooling and chip removing device (7) is connected with the inner cavity of the base (1). The compound machine tool provided by the invention has the advantages of reasonable structural design, high automation degree, convenience in operation and high working efficiency, end face milling and center hole boring can be realized in sequence, chips, cooling liquid and the like can be easily discharged, a prepared product has high quality, and a plurality of defects in the prior art can be overcome.

The invention discloses an abrasive recycling and reusing device for machining. The abrasive recycling and reusing device for machining comprises an abrasive blasting chamber and an abrasive box, anda grid plate is fixedly arranged at the bottom of the abrasive blasting chamber through a bracket. A plurality of dust removal pipes are uniformly arranged at the bottom in the abrasive blasting chamber from front to back, and a main pipe is connected to the right ends of the dust removal pipes. A feeding opening is formed in the top of the front wall of the abrasive box, a discharging pipe is connected to a discharging opening at the bottom of the abrasive box, and a tee pipe is connected to the bottom end of the discharging pipe. Left and right end openings of the tee pipe are connected witha feeding pipe and an air inlet pipe separately, and the discharging end of the feeding pipe penetrates through the side wall of the abrasive blasting chamber to be connected with a spray gun. A recycling box is fixedly arranged at the top of the abrasive box through brackets, a recycling pipe is connected to the upper left side of the recycling box, and an air inlet opening of the left end of the recycling pipe communicates with the main pipe. According to the abrasive recycling and reusing device for machining, dust and other pollutants enter the recycling box for treatment through air draft of a suction fan to prevent the dust from rising, and the working environment is cleaner; and the dust and other pollutants are filtered by arranging a filter screen to ensure that exhausted air isclean, so that the environment is protected.

The invention discloses a workshop waste gas treatment system, which comprises a water washing tower, a defogging box, an active carbon box and a fan, wherein the water washing tower is positioned atthe upper stream of the defogging box; the defogging box is positioned at the upper stream of the active carbon box; the active carbon box is positioned at the upper stream of the fan; the water washing tower comprises a tower body, a first air outlet, a first water inlet and a pollution discharging opening; the first air outlet is positioned at the upper end of the tower body; the first air inletand the pollution discharging opening are positioned in the side wall of the tower body; a first filling material support frame, a gas-liquid mixing layer, a spraying assembly, a second filling material support frame, a first defogging layer and a tower top screen plate are sequentially arranged inside the tower body from bottom to top. The workshop waste gas treatment system has the advantages that dust, grease and harmful gas in waste gas can be effectively removed; the treatment efficiency is high; the system operation is stable; the treated waste gas meets the national emission standard.

The invention belongs to the technical field of industrial wastewater treatment and recycling, and relates to a method for treating metronidazole wastewater. The method comprises the steps of pretreating and recycling salts and organic matters in metronidazole production wastewater, so that the content of polluting organic matters and inorganic salts in the metronidazole wastewater is reduced, and finally, the wastewater amount in every tonnage of metronidazole is reduced from the original 15 tons to about 1 tons.