61results about How to "Reduce operating labor" patented technology

The invention relates to a method for processing zinc oxide ore or zinc oxide secondary resource to prepare superfine active zinc oxide. The method comprises the following steps: ammonium leaching: using zinc oxide ore containing 2-60% of zinc or complex zinc oxide secondary resource as raw material, extracting in an ammonium system coordinately, filtering to remove the residue, wherein the filtrate is applied to the next process; replacement and purification: replacing and purifying the extracted filtrate with zinc powder to eliminate impure elements, and then filtering and removing the residue, wherein the filtrate is applied to the next process; pulverization and drying: decomposing the purified filtrate through high-temperature pulverization to prepare powder A, condensing, spraying and absorbing the tail gas which is then returned to the leaching process to prepare the extracting agent; and toasting: toasting the powder A to obtain superfine active zinc oxide. The purified liquidcan be used for directly preparing even powder through efficient pulverization and drying. The technological process of the method has a circular loop so that a small amount of waste gas and waste water is discharged. The method has a rational tail gas heat exchanger. Ammonia gas is recycled in a condensing manner to prepare the leaching liquid. The rest of the ammonia gas is absorbed through spraying, thereby reducing the discharge pressure of three wastes, namely, waste gas, waste water and industrial residue.

This disclosure discloses a label producing apparatus that produces a label with print, comprising: a feeding device that feeds a print-receiving tape or a base tape thereto; a printing device that performs printing on the print-receiving tape; a first command input part that inputs a first command signal for providing instructions from an external source; a second command input part that inputs a second command signal from an external source; and a control portion that controls said at least one of devices for working based on the first or second command signal.

The invention discloses a special organic fertilizer for large hawthorn and a preparation method thereof. The special organic fertilizer is characterized by being mainly prepared from the following raw materials and components in parts by weight: 300 parts of dry silkworm excrement, 10-20 parts of peanut meal, 20-40 parts of peanut shell middlings, 0.5-1.5 parts of microbial agent, 4-8 parts of tea seed shell carbon granule, 20-40 parts of sugarcane ash and 1-6 parts of lime powder. The preparation method is continuous in production and is reduced in fertilizer granulation and liquid drying procedures; the preparation method is simple and easy to operate, good in quality of the organic fertilizer and less in operation of labor, and is reduced in production cost; the special organic fertilizer is reasonable in nutrient structure, has an effect of a controlled release fertilizer, and has the functions of holding water and improving soil, is reduced in fertilizer loss and increased in fertilizer utilization rate, is capable of meeting the nutrient requirement of a large hawthorn tree, and is capable of increasing the yield and improving the quality; and the hawthorn can be freshly eaten, and is good in taste, less in astringent, long in storage period, and better in economic benefit, ecological benefit and social benefit.

The invention discloses a hardware accessory polishing device and relates to the technical field of hardware accessory processing equipment. The hardware accessory polishing device comprises a worktable, wherein first connecting seats are connected to two side of the worktable, a first motor is mounted on one side of one first connecting seat, the output end of the first motor is connected to a first belt wheel, and one end of the first belt wheel is connected to a first lead screw. By arranging the first motor, a second motor, an electric push rod, the first connecting seats, a second connecting seat, a first slide block and a second slide block, the first motor drives the first slide block to move on the first lead screw in the first connecting seat, so that a polishing wheel moves frontand back; the second motor drives the second slide block to move on the second lead screw in the second connecting seat, so that the polishing wheel moves left and right; the electric push rod stretches , so that the polishing wheel moves up and down to polish a workpiece all around, and therefore, the operating labor force of staff is reduced and the production efficiency of the device is improved.

The invention discloses a glass automatic edge grinding machine for a camera protection lens. The glass automatic edge grinding machine comprises a rack and further comprises a rotating station, a glass feeding device, a grinding wheel assembly, a driving grinding wheel set radial feeding device, a driving grinding wheel set axial feeding device, a suction rod device, a suction rod advancing and retreating driving device, a suction rod vertical moving driving device, an on-line measuring device, a water spraying device, a finished product collection device and a control box which are arrangedon the rack. The automatic feeding function is achieved, gluing is not needed, corresponding limit work can be completed directly through two baffles of the glass feeding device, the work flow is simplified, repeated carrying of a jig is omitted, and the labor intensity of operators is relieved; through the one-time clamping effect of a glass supporting plate of the glass feeding device, multi-layer glass blanks can be clamped at a time to be grinded, and thus the edge position yield is increased; and on-line detection is adopted, automatic compensation is conducted through data of on-line detection, the dimension precision is within + / - 0.01 mm, and the detection accuracy can be improved to a large extent.

The invention relates to a method for synthesizing 4-amino-3-chlorophenol by means of a multiple-temperature-zone continuous flow microchannel reactor, which belongs to the field of organic synthesisof anti-cancer drugs, and solves the problems in the prior art that in a process of synthesizing 4-amino-3-chlorophenol, the product yield is low, the purity is low, the cost is high and the safety property of the product is poor and the like as raw materials are not easily available, the catalyst is high in cost and the synthesized intermediate product is unstable in diazonium salt. By means of the microchannel reactor, sulfanilic acid is taken as an initial raw material, a target product 4-amino-3-chlorophenol is obtained by three steps of diazotization, coupling of diazonium salt and reduction of an azoic compound. The method provided by the invention can be applied to large-scale production of 4-amino-3-chlorophenol.

The invention provides a full-automatic deep-cylinder wine box assembling machine. The full-automatic deep-cylinder wine box assembling machine comprises a divider device, an upper uncover lid conveying device, a gluing device, an inner surrounding strip assembling device, a wine box cylinder and upper uncover lid assembling device, a wine box cylinder conveying device and an output device, wherein the divider device is erected on a machine table, four stations are arranged on the divider device, the upper uncover lid conveying device is erected on the right side of the divider device, the gluing device is erected on the outer side of the divider device, the inner surrounding strip assembling device is erected on the left side of the divider device, the wine box cylinder and upper uncoverlid assembling device is erected on the inner side of the divider device, the wine box cylinder conveying device is erected on the inner side of the wine box cylinder and upper uncover lid assemblingdevice, and the output device is erected above the wine box cylinder conveying device. According to the full-automatic deep-cylinder wine box assembling machine, the automatic operation replaces the manual operation, so that efficient production of the wine box assembly is realized, and the bottleneck problems of low efficiency and high defective product rate of manual assembly of deep-cylinder wine boxes and upper uncover lids and inner surrounding strips in the printing packaging industry are solved.

The invention discloses a fruit / vegetable hot air drying room which comprises a room body, wherein the room body is internally partitioned into a drying room, a negative pressure air return room and a positive pressure heating air supply room through a partition; a dehumidifying window is arranged at one end part of the drying room of the room body; a first circulation fan is arranged in the negative pressure air return room; the negative pressure air return room is communicated with the positive pressure heating air supply room through the first circulation fan; the negative pressure air return room is communicated with the drying room through an upper air hole formed in the partition; an air supplementary electronic valve is arranged in the negative pressure air return room; an air heating device is arranged in the positive pressure heating air supply room; the positive pressure heating air supply room is communicated with the drying room through a lower air hole formed in the partition. By adoption of the fruit / vegetable hot air drying room disclosed by the invention, temperature and humidity difference of a hot air area of the drying room is eliminated, the hot air temperature and humidity control precision of the drying room can be improved, the labor is saved, and the drying cost can be lowered.

The invention relates to a method for synthesizing a Mirabegron intermediate by a microchannel reactor, and belongs to the field of drug synthesis in organic synthesis. The invention aims to solve problems of existing Mirabegron intermediate synthesis process, such as large potential safety hazard, low yield, poor purity, low frequency for recycling and reusing of a catalyst and the like. According to the method, a raw material, an organic solvent and an activated carbon-supported precious metal catalyst are mixed and then react with hydrogen in a microchannel reactor to obtain the Mirabegronintermediate (ALPHAR)-ALPHA-[[[2-(4-aminophenyl)ethyl]amino]methyl]benzyl alcohol. The concentration of the raw material in the organic solvent is 0.1 mol / L-0.5 mol / L; mass ratio of the raw material to the activated carbon-supported precious metal catalyst is 1: (0.01-0.10); and the molar ratio of the raw material in the material I to hydrogen is 1: (3.0-3.5). The method of the invention is suitable for long-term safe and stable online production of the Mirabegron intermediate.

The invention discloses a hollow facade pulley guide attached-type lifting scaffold in the field of building. The hollow facade pulley guide attached-type lifting scaffold comprises a vertical main frame, a horizontal bearing truss, an attached guide device, a safety catcher device, a lifting power system and an electric control system, wherein the vertical main frame is of an elevator standard node structure and formed by a plurality of main frames in connection; the horizontal bearing truss is composed of a cross rod, a sway rod and a vertical rod; the attached guide device is composed of a special attached bolt, a horizontal attached girder and a guide wheel group; the horizontal bearing truss is fixed on the horizontal attached girder by the special attached bolt; the safety catcher device is composed of a guide rail and a safety catcher which is horizontally attached on the girder; the guide rail is fixed on the vertical main frame; the horizontal attached girder is arranged on the guide wheel and connected with the guide rail on the frame body; and the lifting power system drives lifting motion of the hollow facade pulley guide attached-type lifting scaffold. Compared with the prior art, the hollow facade pulley guide attached-type lifting scaffold has the advantages of saving materials, reducing, the labor intensity, being free of pollution, good in benefit of environmental protection and the like.

The invention provides cement concrete prefabricated part processing equipment and processing method. The cement concrete prefabricated part processing equipment is matched with an external conveyor to work. The cement concrete prefabricated part processing equipment comprises a box body, a moving device, a cleaning mechanism, a lifting conveying mechanism, a control device, a conveying device, a stirring device, a mold, a mold storage box, a transferring device, a demolding device and a vibration device. The control device is used for controlling operation of all devices, the moving device is used for moving the whole equipment, the conveying device is used for conveying all raw materials, the stirring device is used for preparing concrete raw materials, the mold storage box is used for storing and conveying molds, the transferring device is used for transferring the molds after pouring, the vibration device is used for vibrating the molds after pouring, the demolding device is used for separating concrete prefabricated parts formed through pouring from the molds, the external conveyor is used for conveying the prefabricated parts to an external site for maintenance, the cleaning mechanism is used for cleaning the molds after demolding, and the lifting conveying mechanism is used for conveying the molds cleaned by the cleaning mechanism into the mold storage box.

The invention discloses a synthesis method for 4-sulfonamidophenylhydrazine hydrochloride, which relates to the field of organic synthesis. The method includes the following steps: p-aminobenzenesulfonamide is dissolved in diluted hydrochloric acid to serve as a material I, sodium nitrite is dissolved in water to serve as a material II, stannous chloride is dissolved in concentrated hydrochloric acid to serve as a material III, and the material I and the material II undergo diazotization reaction after being preheated, so that diazonium salt is produced; the product and the material III undergo diazonium salt reduction reaction, and after processing, 4-sulfonamidophenylhydrazine hydrochloride is obtained. The method provided by the invention is safe and environmentally friendly, and the method remarkably increases yield and product purity in comparison with conventional methods.

The invention relates to a power-assisted pipeline valve which comprises a valve body and a pressure relief assembly, a first sliding groove is formed in the top of the valve body, a sliding sleeve is arranged in the valve body, the two sides of the sliding sleeve are connected with the inner wall of the valve body through first springs, a ball valve assembly is arranged in the sliding sleeve, a valve rod is connected to the ball valve assembly, the valve rod penetrates out of the sliding sleeve and is sleeved with a sliding shell, and the sliding shell is arranged in the first sliding groove. An electric power-assisted mechanism and a rack are arranged on the sliding shell, the electric power-assisted mechanism is connected with the valve rod, a first rotating shaft is arranged on the valve body in a penetrating mode, a fifth gear, a rotating disc and a third spring are sequentially arranged on the first rotating shaft from top to bottom, the fifth gear is meshed with the rack, the rotating disc is connected with the fifth gear through a centrifugal locking mechanism, the third spring is connected with the rotating disc and the valve body, and the pressure relief assembly is arranged on the valve body and connected with the rotating disc. The problems that in the prior art, the manual valve is strenuous to operate for people with small strength, the water hammer control effect is poor, and the service life of the manual valve is seriously affected are effectively solved.

The invention discloses a method of synthesizing apixaban intermediate by a microchannel reactor and belongs to the technical field of synthesis of antithrombotic drugs. The method comprises: adding ethyl 4,5,6,7-tetrahydro-1-(4-benzyloxyphenyl)-6-(4-nitrophenyl)-7-oxo-1-H-pyrazolo[3,4-c]pyridine-3-carboxylate into an organic solvent, adding an activated carbon-loaded noble metal catalyst to obtain a mixture as material I, delivering the material I to a preheating module of the microchannel reactor, preheating, and feeding into a reaction module unit; delivering hydrogen to the reaction moduleunit of the microchannel reactor and the material I to the reaction module unit for the purpose of reaction, collecting reacted liquid from a cooling module, and post-treating to obtain the apixabanintermediate. The method can effectively shorten the reaction time and greatly reduce the safety potential hazard that hydrogen leakage causes combustion and explosion, and is applicable to the synthesis of apixaban intermediates.

The invention discloses a pressure regulating valve, and belongs to the field of petroleum engineering. The pressure regulating valve comprises a valve body with a liquid inlet cavity and a liquid outlet cavity, an elastic piece, a valve clack and a valve seat. Due to the fact that the valve clack can be driven by the elastic piece to abut against the valve seat or be broken from the valve seat, the on-off state of the liquid inlet cavity and the liquid outlet cavity can be determined by the relative position relation of the valve clack and the valve seat, and therefore the pressure in a pipecan be automatically adjusted by adopting the pressure adjusting valve. For example, the elastic piece can drive the valve clack to be broken from the valve seat under extrusion of pressure in the pipe, the liquid inlet cavity communicates with the liquid outlet cavity, and pressure relief is completed. By means of the design of the pressure regulating valve, the operation labor amount is greatlyreduced, and the regulating flexibility and reliability are good.

The invention discloses a method for manufacturing a lamp housing of an automobile lamp, which comprises the following steps: (1) firstly, the lamp housing is injection molded through a mold through an injection molding machine; (2) ultrasonically cleans the molded lamp housing in a cleaning pool; (3) ) send the cleaned lamp housing into the automatic surface dust removal and static removal system for surface dust removal and drying; (4) carry out surface hardening coating on the lamp housing after dust removal and drying; The advanced production process realizes standardized flow operation, effectively reduces operating labor, improves the effect of cleaning the surface of the lamp housing, makes the paint surface of the lamp housing smooth after spraying, and improves production efficiency and product quality.

The invention discloses a method for synthesizing an osimertinib intermediate through a micro-channel reactor and belongs to the technical field of anticancer drug synthesis in organic synthesis. Aiming at the problems in the traditional high-pressure catalytic hydrogenation reactor synthesis process that the yield is low, the purity is low, violent explosion easily occurs to cause danger, and thecatalyst recycling and reusing frequency is low, the method for synthesizing the osimertinib intermediate through the micro-channel reactor is provided. The osimertinib intermediate is N-1-[2-(dimethylamino)ethyl]-5-methoxy-N1-methyl-N4-[4-(1-methyl-1H-indole-3-yl)-2-pyrimidyl]-1,2,4-triaminobenzene. The method comprises the following synthesis steps: adding N-(2-(dimethylamino-ethyl)-2-methoxy-N-(4-(1-methyl-1-indole-3-yl)-pyrimidyl-2-yl)-5-nitro-phenyl-1,4-diamine into a mixture of an organic solvent and concentrated hydrochloric acid in a microchannel reactor, adding an activated carbon supported noble metal catalyst, and preheating to form a material I; performing reaction on hydrogen and the preheated material I, thereby obtaining the osimertinib intermediate. The method is applicable to synthesis of anticancer drugs.

The invention discloses a closing method for a passageway bus bar, and concretely relates to a closing method for a passageway bus bar when multiple electrolytic cells are shut. The to-be solved technical problems comprise that when a part of electrolytic cells at an electrolysis workshop section are shut at present, routine operation is relatively complex, electrolytic-cell normal production is relatively greatly influenced, power supply equipment has potential safety hazard, and workload and labor intensity of workers are large. The closing method comprises the following steps: 1, arranging a discharging device between two ends A and B of the bus bar, and enabling the discharging switch of the discharging device to be at an off state; 2, after a series of electrolytic cells are powered off, turning on the switch; 3, when the voltage reduction at a discharging circuit-breaking intersection of the discharging device is lower than 0.1 V, finishing short-circuit discharging; and 4, closing the passageway bus bar switch. The method is capable of directly performing closing operation, helps to reduce operation items, shorten serial power-off time and reduce serial running risk, helps to reduce losses such as shutting and secondary starting of two electrolytic cells, and the like, and helps to greatly improve work efficiency.

The invention discloses an automatic thermoregulator device of a grain drier. The automatic thermoregulator device comprises a hot air lock device, a hot air pipe, a cold air inlet volume control mechanism and a flow guide mechanism, wherein the hot air lock device is connected with the hot air pipe; the hot air pipe is connected with the cold air inlet volume control mechanism; the flow guide mechanism is connected with the hot air pipe, and is further connected with the cold air inlet volume control mechanism; a shaft hole is formed in a stroke motor base of a hot air barrel shell of the hot air lock device; the shaft hole goes through the hot air barrel shell and is connected with a circular shaft; the circular shaft is connected with a stroke motor; the stroke motor is fixedly connected with the stroke motor base; the other end of the circular shaft is connected with an indicating arrow; and the circular shaft inside the hot air barrel shell is connected with an air door plate. According to the automatic thermoregulator device, when the grain drier performs drying operation, the automatic thermoregulator device enables the temperature control accuracy to reach + / -1 DEG C, and the accuracy is improved by 2 to 4 times compared with the accuracy of a device which has no thermoregulator and has the same power; and through the utilization of the automatic thermoregulator device, two operators are saved for each operation team, and the fuel can be saved by 5 to 10%.

The invention discloses an integrated membrane bioreactor. The integrated membrane bioreactor comprises an anaerobic zone provided with a lining anticorrosive coating layer, an anoxic zone provided with a lining anticorrosive coating layer, an aerobic zone provided with a lining anticorrosive coating layer, a filtering zone provided with a lining anticorrosive coating layer, a MBR subassembly arranged in the filtering zone, a reflux pump, a filter pump, and an air blower. The integrated membrane bioreactor possesses following advantages: (1) treatment efficiency is high, and discharged water can be recycled directly; (2) system operation is stable, flow is simple, equipment is less, and occupied land area is small; (3) sludge age is old, and excess sludge production is low; and (4) operation management is convenient, and automatic control is convenient to realize. According to the integrated membrane bioreactor, activated sludge can be completed intercepted in the integrated membrane bioreactor; hydraulic retention time (HRT) and sludge retention time (SRT) are completed separated in the integrated membrane bioreactor, so that flexible and stable controlling can be realized; at the same time, automatic control is convenient to realize, and automation level of wastewater processing is increased.

The invention discloses a method for synthesizing a dovitnib intermediate in a microchannel reactor and belongs to the technical field of antitumor drug synthesis in organic synthesis. The method comprises adding 5-(4-methylpiperazine)-2-nitroaniline into an organic solvent, adding an activated carbon-loaded precious metal catalyst into the solution to obtain a mixture as a material I, conveying the material I into a preheating module of the microchannel reactor, carrying out preheating, feeding the preheated material into a reaction module set, feeding hydrogen into the reaction module set ofthe microchannel reactor so that the hydrogen and the preheated material I undergo a reaction in the reaction module set, collecting the reaction liquid flowing out of a cooling module and carrying out post-treatment to obtain the dovitnib intermediate 4-(4-methylpiperazinyl)-1, 2-phenylenediamine. The method can effectively shorten the reaction time, greatly reduce the combustion and explosion safety hazard caused by hydrogen leakage, and is suitable for the process of synthesizing the dovitnib intermediate.

The invention discloses a special organic fertilizer for large hawthorn and a preparation method thereof. The special organic fertilizer is characterized by being mainly prepared from the following raw materials and components in parts by weight: 300 parts of dry silkworm excrement, 10-20 parts of peanut meal, 20-40 parts of peanut shell middlings, 0.5-1.5 parts of microbial agent, 4-8 parts of tea seed shell carbon granule, 20-40 parts of sugarcane ash and 1-6 parts of lime powder. The preparation method is continuous in production and is reduced in fertilizer granulation and liquid drying procedures; the preparation method is simple and easy to operate, good in quality of the organic fertilizer and less in operation of labor, and is reduced in production cost; the special organic fertilizer is reasonable in nutrient structure, has an effect of a controlled release fertilizer, and has the functions of holding water and improving soil, is reduced in fertilizer loss and increased in fertilizer utilization rate, is capable of meeting the nutrient requirement of a large hawthorn tree, and is capable of increasing the yield and improving the quality; and the hawthorn can be freshly eaten, and is good in taste, less in astringent, long in storage period, and better in economic benefit, ecological benefit and social benefit.

The invention discloses a moving screening station which comprises a crushing machine, a vibration screen, a screening belt conveyor as well as an electro-hydraulic platform, wherein the small granuleoutput hole of the vibration screen is connected with the screening belt conveyor; the large granule outlet of the vibration screen is connected with the input hole of a crushing machine; the electro-hydraulic platform is used for automatically powering on or off the crushing machine, the vibration screen and the screening belt conveyer according to production processes when a start or stop signal is received; the crushing machine, the vibration screen and the screening belt conveyer are all connected with the electro-hydraulic platform. According to the moving screening station disclosed bythe invention, power-on and stop operation of the crushing machine, the vibration screen and the screening belt conveyer can be achieved through the electro-hydraulic platform, the situation that in the prior art different instruments are respectively powered on and powered off by operators is avoided, operation labor is saved, power-on and power-off for production processes are achieved, power-onand power-off operation accuracy is ensured, and the production efficiency of a production line is improved.

The invention relates to a method for continuously synthesizing 1H-1,2,3-triazole through a microchannel reactor, and belongs to the technical field of medicine synthesis. The method comprises the following steps: reacting a hydrazine hydrate aqueous solution and a glyoxal aqueous solution in a micro-channel reactor to prepare a material 1, continuously reacting the material 1 with hydrogen peroxide in the micro-channel reactor to prepare a material 2, and continuously mixing the material 2 with concentrated hydrochloric acid in the micro-channel reactor to obtain a material 3; conducting reaction on the material 3 and a sodium nitrite aqueous solution in the micro-channel reactor, and conducting post-treatment to obtian 1H-1,2,3-triazole. No solvent needs to be added or replaced in the reaction process, manganese dioxide and potassium permanganate which can generate solid waste are prevented from being used, and toxic substances such as toluenesulfonyl chloride and dioxane which are harmful to the environment are not used either; and the 1H-1,2,3-triazole can be safely produced.

The invention discloses a tetracene extraction and distillation system and technology. The system comprises an extraction and distillation tower, a recycling tower, a benzene tower, a toluene tower and a xylene tower, which are connected in sequence, wherein the extraction and distillation tower is used for extracting, distilling and separating through introducing hydrogen oil and a solvent. Afterthe technology is applied, the technology is used for continuously producing for many years, and tetracene distillation extraction is carried out on full components by utilizing hydrogenated oil; under the condition that a solvent regeneration device is not needed, the quality of all products can be ensured; especially, the separation efficiency and stability of the extraction and distillation are improved and the purity of 99.99 percent or above can be produced all year round; the consumption amount of a solvent is nearly zero. Meanwhile, the labor amount of post operation is also greatly reduced after each system is stable.

The invention discloses an automatic penetrator injection molding machine for plastic steel closed-end zippers. The automatic penetrator injection molding machine comprises a workbench, a puller supply device, a penetrator device and an injection molding positioning assembly, wherein the workbench is provided with a zipper conveying device, the puller supply device, the penetrator device and the injection molding positioning assembly are arranged on the workbench, a zipper conveying path sequentially passes through the penetrator device and the injection molding positioning assembly, and the puller supply device provides pullers for the penetrator device; the puller supply device comprises a puller vibrating plate for accommodating pullers and a puller guide rail for outputting the pullers; and the penetrator device comprises a puller clamping assembly and a puller inlet guide plate, the puller clamping assembly is used for clamping pullers from the puller guide rail, the puller inlet guide plate can move to a zipper conveying track, the zipper conveying device can draw zippers to pass through the puller inlet guide plate, and the puller clamping assembly can clamp pullers from the puller guide rail, and enable the pullers to move to the puller inlet guide plate relative to the zipper vacancies of zippers and then penetrate the zipper vacancies.

The invention discloses a duplication dynamics automatic adjustment structure assembly of a stylus printer. The duplication dynamics automatic adjustment structure assembly of the stylus printer comprises a support and a paper-thickness regulating shaft of an eccentric shaft, wherein one end of the paper-thickness penetrates through the support, and then a paper-thickness slection lever is fixedly installed at a tail end of the paper-thickness regulating shaft. The paper-thickness selection lever is in a sector structure, and a surface of the selection lever is divided into an inner sector shape and an outer sector shape. File position teeth are arranged on one end surface of the inner sector shape along diameter direction of the inner sector. Blocking needles locked in the file position teeth are arranged on the support. A U-shaped photo-electricity sensor is installed on the end surface of the support nearby the paper-thickness selection lever. Blocking slices capable of sheltering beams of the U-shaped photo-electricity sensor are arranged on the paper-thickness selection lever. A duplication dynamics state of the automatic adjustment stylus printer is capable of abandoning a duplication dynamics adjustment manner of manually regulating the duplication dynamics through a panel press button in the traditional technology. The duplication dynamics automatic adjustment structure assembly of the stylus printer is simple in structure, reasonable and compact, saving in bill material and high in printing efficiency.

The invention belongs to the technical field of analytical chemistry, and particularly relates to an acid removing device and an acid removing system. The acid removing device provided by the invention comprises a box body provided with an acid gas outlet, and further comprises a transparent glass window arranged at the top of the box body and an infrared heating device arranged outside the box body and positioned at the upper part of the transparent glass window, so that infrared light emitted by the infrared heating device penetrates through the transparent glass window to enter the box bodyso as to heat an acid-containing solution in the box body. The acid removing device provided by the invention can greatly reduce the loss of target components of a sample, does not need to perform one-by-one sealing operation on each container filled with a sample digestion solution, saves time and labor, is simple and convenient to operate, and can realize batch operation.

The invention belongs to the field of chemical synthesis, and specifically discloses a method for synthesizing 3,4-bis(4'-aminofurazan-3'-yl)furazan oxide in one step using a microchannel reactor. ‑Amidoxime furazan solution and sodium nitrite aqueous solution are simultaneously pumped into the micro-mixer of the microchannel reactor, and after mixing, they are passed into the microreactor for reaction to obtain 3,4-bis(4'-aminofurazan -3'-yl) reaction solution of furazan oxide. The reaction process of the invention realizes one-step direct synthesis from the raw material AAOF to the target product DATF, has the advantages of short reaction time, high conversion rate of raw materials, high yield of target product, etc., and has good industrial application prospects.

The invention relates to a production line of macaroni, which comprises a shaking screen, an air charging system, a vacuum dough kneading machine, a vacuum aging mixer, a depiler, an extruder, a dinking machine, a hoist, a vibration predrier, a drying hoist, a dryer, an air-cooled hoist, an air-cooled machine, a vibration discharging machine and a package conveyer which are orderly arranged on the material-transferring direction. The production line has the advantages of less artificial operation, safety and health, and large output.