83results about How to "Affect production" patented technology

The invention relates to the field of face mask production equipment, in particular to a face mask body making machine. The face mask body making machine comprises a feeding mechanism, a frame, a printing mechanism, a fixed nose bridge strip mechanism, a pattern mechanism, a cutting mechanism, a waste material collecting mechanism and a discharging mechanism, wherein the feeding mechanism is used for feeding non-woven fabrics and nose bridge strips; the printing mechanism is used for printing on the non-woven fabrics; the fixed nose bridge strip mechanism is used for welding the nose bridge strips on the non-woven fabrics; the pattern mechanism is used for molding patterns on the non-woven fabrics; the cutting mechanism is used for cutting corners of the non-woven fabrics on which the patterns are molded; the waste material collecting mechanism is used for recovering waste scraps; the discharging mechanism is used for discharging finished face masks; the printing mechanism, the fixed nose bridge strip mechanism, the pattern mechanism, the cutting mechanism, the waste collecting mechanism and the discharging mechanism are all arranged above the frame, and are all positioned behind the feeding mechanism. The face mask body making machine has high production efficiency, and has contribution to improvement of the face mask quality.

The invention provides a coke oven maintenance method which comprises steps as follows: the temperature of a to-be-maintained combustion chamber of a coke oven is reduced to a range of a first preset temperature, and the temperature of a combustion chamber adjacent to the to-be-maintained combustion chamber is reduced to a range of a second preset temperature; after an oven roof and an oven door of the to-be-maintained combustion chamber are dismounted, to-be-maintained brickworks of the to-be-maintained combustion chamber are dismounted; when the to-be-maintained combustion chamber is maintained, the adjacent combustion chamber is subjected to temperature rise control, and the temperature of the adjacent combustion chamber is increased to a range of a third preset temperature after maintenance of the to-be-maintained combustion chamber are finished; and preset gaps are formed between adjacent brickworks after maintenance ends. With the adoption of the technical scheme, the problem of secondary damage of an oven wall due to the fact that the brickwork temperature and the sizes of the preset gaps in the joint positions of new and old brickworks cannot be controlled effectively is solved, so that the size of the maintained combustion chamber is standard, the brickworks are neat, the loss and the cost are reduced, and the yield of the coke oven is increased.

The invention discloses a cooling water circulation system of an injection molding workshop. The cooling water circulation system comprises a reservoir and a cooling water circulation pipeline. A reservoir body of the reservoir is divided into a water supply tank and a return water sedimentation tank by a partition, the tank wall of the water supply tank is provided with a water outlet, and the upper portion of the return water sedimentation tank is provided with a cooling tower. The cooling water circulation pipeline comprises a water inlet pipeline, a return water pipeline and cooling branches connected between the water inlet pipeline and the return water pipeline, each cooling branch comprises a subsidiary water inlet pipeline, a water pump, a heat exchanger and a subsidiary return water pipeline sequentially, a subsidiary water inlet of the water inlet pipeline of each cooling branch is connected onto a main water inlet pipeline, a water outlet of the subsidiary return water pipeline is connected onto a main return water pipeline, and the water pump is arranged between a water outlet of the subsidiary water inlet pipeline and a water inlet of the exchanger. Each injection molding machine is equipped with a water supply pump, so that one or more injection molding machines can be started according to requirements of enterprises by starting the water supply pumps for the corresponding injection molding machines.

The invention discloses a method for treating a spent catalyst by utilizing magnetite in a sintering process, and belongs to the technical field of catalyst recovery. The method comprises the following steps that pre-granulation on a spent catalyst containing TiO2 and magnetite is conducted, and adding is conducted to other sintering raw materials for sintering after pre-granulation. According tothe method, the TiO2 in the spent catalyst reacts with the magnetite to form a phase product which does not affect sintering quality, the sintering quality is guaranteed, and effective processing on the spent catalyst is further conducted.

The invention discloses a centrifugal compressor with a vibratory diffuser blade. The centrifugal compressor comprises an air incoming chamber, an impeller, a diffuser, a curve, a return flow device and a volute, the diffuser blade for diversion is arranged in the diffuser and connected with a partition through a diffuser blade rotating shaft, and a vibration exciter is connected with the diffuser blade through a transmission mechanism. When the vibration exciter works, vibration is generated and transmitted to the diffuser blade, and the diffuser blade vibrates around the diffuser blade rotating shaft and actively controls a flow field in the diffuser; or the diffuser blade is connected with an elastic element through the transmission mechanism, and when gas flows through the diffuser, the diffuser blade generates self-excited vibration to realize self-adaptive control on the flow field in the diffuser. In the constantly-changing flow field, the blade slightly vibrates around a rotating shaft, a runner is enabled to be capable of effectively adapt to flowing change, separation in flowing is reduced, energy loss is lowered, and overall performance of the diffuser is improved.

The invention relates to a pollination method for radish breeding materials. The pollination method includes the steps of radish seed selection, radish planting, radish management after planting, mesh enclosure setup, thinning and supporting, manual powdering, pollination period management and seed harvesting. Radish management after planting includes watering, fertilization and pest elimination; thinning refers to cleaning radish branches in the early flowering stage of radishes and retaining 3-5 branches on each single plant; supporting refers to fixing each radish single plant and tightening the radish branches of a dispersed plant type; mesh enclosure setup refers to setting up a mesh enclosure according to the number of the materials after transplanting survival of the radishes, compacting the bottom of the mesh enclosure, fixing the outside of the mesh enclosure and mounting a wire drawing door on a narrow side of the mesh enclosure; and manual powdering refers to gradually powdering different flowers of the same plant or different single plants of the same material without pollution or damage. The pollination method is simple in process, insect pollination can be effectively prevented, mixed pollination is avoided, loss of beneficial genes of the radish materials can be avoided, and seed production cannot be affected by environmental factors.

The invention discloses an automatic carrying control system of a material transportation robot. The automatic carrying control system comprises a robot controller, a landmark sensing unit, an equipment monitoring unit, a position detection unit, an information warning unit, a state display unit, a walking driving unit and a pneumatic clamping unit, wherein the landmark sensing unit is connected with the robot controller through a data acquisition analysis and signal transmission module, and the equipment monitoring unit is connected with the robot controller through a signal analysis processing and signal transmission module. According to the automatic carrying control system, the equipment monitoring unit is used for monitoring the running state of equipment on each station, when an equipment failure is monitored by the equipment monitoring unit, the robot controller starts the information warning unit to send an audible and visible alarm and gets linked with the walking driving unit to control the movement state of the material transportation robot, and therefore the movement state and the movement track of each material transportation robot can be timely adjusted, the influence of the equipment failure on an automatic production line can be reduced, the production safety is guaranteed, the working efficiency of the automatic production line is improved, and the error rate is reduced.

The invention discloses an environment-friendly PVC agricultural film and a preparation method thereof, belonging to the technical field of high polymer materials. In the PVC agricultural film disclosed by the invention, the adopted PVC material is an environment-friendly material; in the preparation process, environment-friendly stabilizer and plasticizer are adopted; the prepared material has the advantages of good stability, light texture, easiness in shaping, good light transmission and weather resistance and strong thermal insulation property, can meet the using requirements and achieves environment-friendly and pollution-free effects; the agricultural film has environment-friendly and pollution-free effects; even if the internal environment-friendly plasticizer and stabilizer are separated out, the soil is not polluted and the crop production is not influenced; and the agricultural film prepared in the invention can be recycled, thereby saving the resources.

The invention discloses night luminous house ventilation equipment which comprises a structure bracket and a photovoltaic component arranged at the top of the structure bracket, wherein the structure bracket is composed of multiple main skeletons arranged in parallel and brackets connected between the main skeletons; a luminous rain baffle is arranged above the structure bracket; arc outer casings are symmetrically arranged on the two sides of the structure bracket; symmetric air outlets are formed between the rain baffle and the outer casings on the two sides; a middle suspending valve plate and an electric push rod are arranged at the air outlets on the structure bracket; one end of the middle suspending valve plate is articulated with the structure bracket while the other end is connected with the electric push rod; and the electric push rod drives the middle suspending valve plate to control the opening / closing of the air outlets. The equipment disclosed by the invention has the advantages of light structure weight, good ventilation effect, low local resistance, convenience in mounting, simplicity in operation, good lighting effect, resistance to rain and snow, no energy consumption, conversion of luminous energy stored at daytime into electric energy, illumination at night and the like.

The invention discloses an ethylene unit alkaline washing tower polymer inhibitor and a preparation method and application thereof, which aim to solve the problems of the generation of an ethylene alkaline washing tower polymer and tower tray blockage in the prior art. The inhibitor consists of the following components in percentage by weight: 10 to 30 percent of a component A, 10 to 30 percent of a component B, 2 to 10 percent of a component C and 30 to 78 percent of a component D, wherein the component A is an aldehyde ketone condensation inhibitor; the component B is a water-soluble free radical polymerization inhibitor; the component C is a sulfate water-soluble antioxidant solubilizer; and the component D is a solvent. The ethylene unit alkaline washing tower polymer inhibitor has even and stable state and reliable performance, not only can inhibit aldehyde ketone condensation reaction and unsaturated olefin free radical polymerization reaction, but also can reduce a small amountof oxygen dissolved in an alkali liquor, and simultaneously disperses a small amount of the generated polymer and dissolves the polymer into the alkali liquor to prevent the polymer from blocking thetower tray.

The invention discloses an additive charging device for high molecular material production. The device comprises a box; a cavity is formed in the box; a mounting hole is formed in the top of the cavity; an unloading pipe is fixedly mounted in the mounting hole, and is provided with a feeding hole; slide holes are formed in the inner walls of two sides of the feeding hole; the same slide plate is slidingly mounted in the two slide holes; a screen hole is formed in the top of the slide plate; a screen is fixedly mounted on the side wall of the screen hole; a rectangular hole is formed in the topof the slide plate, and is positioned on the outer side of the unloading pipe; a mounting table, fixedly mounted at the top of the box, is arranged under the rectangular hole; a chute is formed in the top of the mounting table; a mounting plate is slidingly mounted in the chute; and a driving motor is mounted at the top of the mounting plate. The device is high in practicability and simple in structure, can perform the buffering protection on the driving motor, and is convenient to vibrate the screen; and the screen can screen and filter additives to facilitate use by people.

The invention discloses an accurate agricultural seed fertilizing device. A motor box is connected to the top end of a stirring box, a stirring rod is rotationally connected to the inner side of the stirring box in an embedded mode, a fixing rod is connected to the edge of the inner side of the stirring box, a material scattering disc is rotationally connected to the position, corresponding to one side of the stirring rod, of the top end of the fixing rod, a crushing box is embedded and connected at the top end of the stirring box corresponding to the position above the material scattering disc, and crushing rollers are symmetrically and rotationally connected to the inner side of the crushing box. According to the device, through a stirring mechanism, chemical fertilizer poured into the stirring box can be dispersed, the chemical fertilizer mixed into water can be stirred, workers can conveniently and uniformly disperse the chemical fertilizer into the stirring box, a worker can conveniently and fully stir the chemical fertilizer and the water, the dissolving speed of the chemical fertilizer is increased, the preparation time of the fertilizer is shortened, and the situation that the worker pours too much chemical fertilizer to cause stacking, influences the mixing of the dissolved chemical fertilizer and the water to generate the fertilizer and further prolongs the preparation time of the fertilizer is avoided.

The invention relates to a method for improving tissue culture seedling transplanting survival rate of oncidium, and belongs to the technical field of agricultural biology. Through selection of a planting matrix, hardening-seedling, seedling washing, fixed planting and other ways, the problems of difficulty in root growing, heavy disease in hardening-seedling and transplanting stages, low survivalrate after taking out of a bottle, weak stress resistance and others of the tissue culture seedling of oncidium can be solved; the method for improving tissue culture seedling transplanting survivalrate of oncidium can improve the transplanting survival rate; the growth recovery of the tissue culture seedling is quick; the disinfectant applied to the method is reasonable in formula, the air-drying time is suitable; the epidemic disease and soft rot in seedling stage of the oncidium can be reduced; moreover, the method is also good for root growth.

The invention discloses house ventilation equipment with an effect of filtering pollutants. The house ventilation equipment comprises a structural bracket and a photovoltaic module arranged at the top of the structural bracket; the structural bracket is composed of a plurality of main skeletons arranged side by side and brackets connected between the main skeletons; rain shields are arranged above the main skeletons; circular arc outer casings are symmetrically arranged at both sides of the structural bracket; symmetrical air outlets are formed at both sides between the rain shields and the outer casings at both sides; center-pivoted valve plates and electrical push rods are arranged at the air outlets on the structural bracket; and pollutant filters are symmetrically arranged at the air outlets at both sides. The house ventilation equipment has the advantages of light structural dead weight, good ventilation effect, low local resistance, convenience for installation, simplicity for operation, good lighting effect, rain and snow prevention, no energy consumption, pollutant filtration, sterilization and the like.

The invention discloses a roof ventilation device capable of automatically purifying air. The roof ventilation device comprises an integrated frame and a photovoltaic component arranged on the top of the integrated frame, wherein the integrated framework is composed of multiple main frameworks arranged side by side and brackets among the multiple main frameworks; a rain baffle is arranged above the main frameworks; the bracket below the rain baffles is provided with a motor; two sides of the integrated frame are symmetrically provided with external arc-shaped protective plates; symmetrical vent holes are formed in positions at the lower sides of spaces between the rain baffle and the external protective plates on two sides; the parts, at the vent holes of the main frameworks are provided with valve plates; the parts, at the vent holes of the brackets below the valve plates are symmetrically provided with air purifiers; one end of each valve plate is articulated with the corresponding main framework, and the other end of each valve plate is connected with the motor which is connected with the photovoltaic component capable of supplying power to the motor. The roof ventilation device has the advantages of light structure self weight, good ventilation effect, local resistance, convenience in installation, simplicity in operation, good in daylighting effect, rain resistance and snow resistance, no energy consumption, air purification capability, less pollution and the like.

The invention provides a system for generating sewage gas by a straw, belongs to the technical field of sewage gas, and solves the technical problems that the existing sewage gas production system is complicated in structure, low in biogas production efficiency, low in automatic degree and the like. The system for generating the sewage gas by the straw comprises a straw crusher, a methane tank, and a delivery device which is arranged between the straw crusher and the methane tank; a rotating mechanism capable of driving a moving cutter cylinder and making a moving blade tangent with a fixed blade is arranged on the straw crusher; the delivery comprises a transport cylinder, a delivery pipe and a fan; the methane tank comprises a tank body, a tank cover, a connecting pipe 1 and an air storage tank; the methane tank is provided with a control mechanism 1 and a control mechanism 2; the first control mechanism 1 can stabilize the pressure of the methane tank; and the control mechanism 2 can adjust the temperature of the methane tank. The system disclosed by the invention has the advantages of simple structure, high gas production efficiency, security, stability, and high automatic degree; and the energy source can be saved.

The invention discloses high-strength fiber concrete and a preparation method thereof, and belongs to the technical field of building materials. The raw material components of the high-strength fiberconcrete comprise 50-60 parts of crushed stones, 350-400 parts of cement, 2-2.5 parts of a water reducing agent, 150-200 parts of water, 30-45 parts of a fiber mixture, 60-80 parts of an adhesive, 15-20 parts of bentonite, 40-50 parts of a calcium chloride aqueous solution and 40-50 parts of a sodium carbonate aqueous solution with the same concentration. The fiber mixture is laid in a square moldand concrete according to three dimensions, under the action of shaking and overturning, fibers in all dimensions are uniformly mixed and cross-linked with each other to form a three-dimensional network, thus greatly improving the tensile strength of each position of the fiber concrete, reducing the cracking phenomenon after solidification, effectively improving the compactness of the fiber concrete, and obviously enhancing the overall strength and toughness.

The invention relates to a blast-furnace vent device which comprises a conical head (1), a hollow steel tube (2), a protection plate (3), a compressed air interface (4), an air hammer (5), a transparent organic glass window (7), an iron plate (8), screws (9) and a reverse knockout rod (10), wherein a hole is arranged on the conical head (1), the head of the hollow steel tube (2) is welded with the conical head (1) and internally introduced with compressed air, the protection plate (3) is arranged at the middle-rear part of the hollow steel tube (2), the transparent organic glass window (7) is arranged at the upper-half part of the hollow steel tube (2), and the iron plate (8) is arranged at the lower-half part of the hollow steel tube (2); the compressed air enters through the compressed air interface (4) arranged at the rear part of the hollow steel tube (2); the tail part of the hollow steel tube (2) is connected with the air hammer (5), the reverse knockout rod (10) is uprightly inserted into the front part of the air hammer (5) and the hollow steel tube (2) and fixed by the screws (9); and scale marks (6) are marked on the surface of the hollow steel tube (2). The invention can solve the problems of the security and the effectiveness in the venting process of a blast furnace.

The invention provides a monitoring system of a methane tank, belonging to the field of methane technologies and solving the problem that in the prior art, methane production is affected by unstable pressure, temperature and biogas slurry quantity of the methane tank. According to the monitoring system of the methane tank, a delivery pipe is fixed on the methane tank, and the other end of the delivery pipe is connected with a methane collecting tank. The monitoring system is characterized in that the methane tank is internally provided with a heating device capable of heating the methane tank, a feeding device and a pressure relief device. The monitoring system comprises a temperature sensor, a pressure sensor and a liquid level sensor which are all arranged in the methane tank and connected with a transformer, wherein the output end of the transformer is connected with an A / D (analog-digital) converter, the output end of the A / D converter is connected with a data processor, and the output end of the data processor is also connected with a controller. The monitoring system can be used for monitoring production environment in the methane tank, so that the methane can be produced stably, and the efficiency can be improved.

The invention relates to the technical field of coal gas treatment equipment, and provides a novel spraying type ammonium sulfate saturator. The saturator comprises a saturator main body, a coal gas pipe is arranged on the saturator main body, and a cleaning device is arranged in the saturator main body. The cleaning device comprises: a guide rod which is arranged in the saturator main body and right faces the coal gas pipe; a water inlet pipe which sleeves the outer side of the guide pipe, wherein a water inlet channel is reserved between the inner wall of the water inlet pipe and the outer wall of the guide rod; and a water spraying device. The water spraying device comprises: a sliding seat, wherein the sliding seat is arranged on the guide rod in a sliding mode and fixedly connected with the water inlet pipe, and a transition cavity is formed in the sliding seat and communicated with the water inlet channel; a rotating seat rotationally arranged on the sliding seat; and multiple water spraying pipes communicating with the transition cavity and arranged in the circumferential direction of the rotating base, wherein the water outlet direction of the water spraying pipes is in the tangential direction of the rotating seat. By means of the technical scheme, the problems that in the prior art, an existing ammonium sulfate saturator is likely to have the phenomenon of scabbing of a gas pipe, consequently, maintenance needs to be forced, and the maintenance cost is increased are solved.

The invention relates to the technical field of rotary kiln, in particular to a repairing method for a refractory material layer of a rotary kiln. The repairing method comprises the steps that temperature in a rotary kiln body is reduced under the condition that the rotary kiln is not shut down; and the refractory material layer to be repaired is directly repaired through a slurry gunning machine,wherein the gunning slurry can be quickly condensed under a high-temperature condition, so that the refractory material layer to be repaired can be repaired in time, and prevented the refractory material layer to be repaired from further falling off to affect the production of the rotary kiln. According to the repairing method for the refractory material layer of the rotary kiln, the repair effect is good, the production of the rotary kiln cannot be influenced, and the service life of the rotary kiln is prolonged.

The invention discloses probiotic solid beverage producing machinery. The probiotic solid beverage producing machinery comprises a device body and a delivery mechanism, wherein a material inlet is formed in one end of the top of the device body; one end of the material inlet is connected with a stirring barrel through a material channel; a first motor is arranged at the middle position of the topof the device body, and is fixed to a main shaft through the device body; a plurality of crushing blades are fixed to one end of the main shaft, and are located on the inner side of a grind ball; oneend of the grinding ball is welded to the material channel; a vibrator is mounted on the inner side of the stirring barrel; and a second motor is arranged at the bottom of the stirring barrel. According to the probiotic solid beverage producing machinery disclosed by the invention, the stirring barrel is arranged on the inner side of the device body, and the crushing blades are arranged on the inner side of the stirring barrel, and can be used for crushing mixed materials in the stirring barrel, so that the situation that large-scale granules are generated in the mixed materials to further influence the quality of the solid beverage is avoided.

The invention discloses a cultivation test device for influence of microelements on crops, and belongs to the technical field of cultivation tests. The cultivation test device comprises a cultivation test box, multiple groups of cultivation assemblies and an irrigation assembly, wherein each cultivation assembly comprises a cultivation test box and nutrition cultivation soil, a long installation plate is fixedly connected between the side inner wall of the cultivation test box, the cultivation test box is arranged on the long installation plate, and the nutrition cultivation soil is arranged in the cultivation test box; and the irrigation assembly comprises a clear water storage box, a nutrient solution storage box and a plurality of atomization nozzles, the clear water storage box and the nutrient solution storage box are connected to the tops of the cultivation test boxes through bolts, and feeding ports are formed in the tops of the clear water storage box and the nutrient solution storage box. Crops are cultivated by utilizing the plurality of cultivation test boxes, different types or different contents of trace elements can be added into different nutrient cultivation soil for cultivation, and the influence of different types or different contents of trace elements on crop growth is observed by utilizing contrast tests.

The invention relates to the field of face mask production equipment, in particular to a face mask body making machine. The face mask body making machine comprises a feeding mechanism, a frame, a printing mechanism, a fixed nose bridge strip mechanism, a pattern mechanism, a cutting mechanism, a waste material collecting mechanism and a discharging mechanism, wherein the feeding mechanism is used for feeding non-woven fabrics and nose bridge strips; the printing mechanism is used for printing on the non-woven fabrics; the fixed nose bridge strip mechanism is used for welding the nose bridge strips on the non-woven fabrics; the pattern mechanism is used for molding patterns on the non-woven fabrics; the cutting mechanism is used for cutting corners of the non-woven fabrics on which the patterns are molded; the waste material collecting mechanism is used for recovering waste scraps; the discharging mechanism is used for discharging finished face masks; the printing mechanism, the fixed nose bridge strip mechanism, the pattern mechanism, the cutting mechanism, the waste collecting mechanism and the discharging mechanism are all arranged above the frame, and are all positioned behind the feeding mechanism. The face mask body making machine has high production efficiency, and has contribution to improvement of the face mask quality.

The invention discloses a conveniently monitored dry boiling machine which comprises a body (1) and an observation window (2). The observation window (2) is mounted on the surface of the body (1), and a cleaning device (3) is arranged on the inner wall of the observation window (2). The conveniently monitored dry boiling machine can constantly keep the observation window on the dry boiling machine body clean when medicines are produced, and the medicines are prevented from shielding the observation window and affecting workers to monitor the medicine production status.

The invention provides automatic threading equipment for an annealing device, and the annealing device. The automatic threading equipment comprises a shell body, a functional part and a fastener whichare connected in sequence; the shell body comprises a first main body and a second main body which communicate with each other, a first through hole is formed in the first main body, an air inlet hole is formed in the second main body, and the first through hole is perpendicular to the axis of the air inlet hole; the functional part is arranged in a second communicating section, a second throughhole and a ring groove are formed in the functional part, and the ring groove communicates with the air inlet hole; and an air outlet hole is formed in the functional part, communicates with the second through hole, and outputs an air flow into the second through hole from the ring groove. The annealing device comprises the automatic threading equipment and comprises an annealing device body, andan annealing pipe is arranged in the annealing device body and communicates with the first main body. The automatic threading equipment can achieve automatic threading of a bare copper wire in the annealing pipe, and the scalding accident brought by manual threading can be avoided.

The invention relates to an out-of-paper detection device of a paper filter cylinder. The out-of-paper detection device comprises a mounting base, a sensor, a guide rod and measuring jaws, wherein the mounting base is fixed on one side of a paper filter cylinder support through bolts; a linear bearing is arranged on the lower end of the mounting base; the guide rod is arranged in the linear bearing; a stopper is arranged on the lower end of the guide rod; a spring is sheathed on the guide rod between the stopper and the mounting base; a target plate is arranged on the upper end of the guide rod; two measuring jaws are arranged on the upper end of the right side of the target plate; a roller is arranged on the right end of the measuring jaw; a guide plate is arranged on the upper end of the mounting base; and the sensor is disposed on the guide plate. The out-of-paper detection device has a simple structure, and can achieve automatic out-of-paper detection of the paper filter cylinder, save labor cost and time cost and obviate shutdown.

The invention discloses polyethylene glycol modified melamine resin, and aims to provide modified melamine resin which has toughness and low water absorption and does not contain nonyl phenol. According to the technical scheme, the adhesive comprises the following components in parts by weight: 80 to 120 parts of polyethylene glycol, 50 to 70 parts of phenol, 180 to 240 parts of melamine, 2 to 3 parts of p-toluene sulfonic acid, 2.5 to 3.5 parts of triethanolamine, 4 to 5 parts of triethylamine, 330 to 430 parts of formaldehyde and 270 to 330 parts of solvent. Relates to the technical field of copper-clad plates.

The invention provides an intelligent agricultural maintenance management system based on Internet-of-Things control. The intelligent agricultural maintenance management system comprises a greenhousewall body, an air inlet hole, an air outlet hole, a sealing mechanism, a filtering mechanism, a temperature adjusting mechanism and a fan mechanism. The intelligent agricultural maintenance managementsystem based on Internet-of-Things control can solve the following problems in the agricultural maintenance management process that a, most ventilation devices related to agricultural greenhouses inthe current market are manually adjusted, the working intensity is relatively high, the environments in the greenhouses are basically controlled by human experience, and agricultural products are notmonitored in real time through an intelligent system; b, most existing ventilation devices do not adjust the temperature of air transmitted into the greenhouses from the outside, and the temperature is adjusted to the optimal temperature for the growth environment of the agricultural products; and c, the existing ventilation devices can only conduct ventilation and cannot effectively control the air speed, the situation that too high air speed affects production of the agricultural products and too low air speed cannot conduct effective ventilation is avoided.

The invention discloses a hot air conveying device for polyester filament non-woven geotextile production equipment. The hot air conveying device for the polyester filament non-woven geotextile production equipment comprises a tank, wherein fixed shafts are fixedly connected to two ends of the outer wall of one side of the tank; a guide pipe is fixedly connected to the outer walls of one sides ofthe two fixed shafts; an air pump is fixedly connected to the outer wall of one side of the tank; an inlet manifold is connected between the outer wall of one side of the air pump and the guide pipe through a flange; a fixed hole is formed in the outer wall of one side of the tank; an exhaust duct is fixedly connected to the inner wall of the fixed hole; supporting blocks are fixedly connected tothe inner walls of one opposite sides of the exhaust duct; springs are fixedly connected to the outer walls of one sides of the supporting blocks; and a filter plate is fixedly connected to the outerwalls of one sides of the springs. According to the hot air conveying device for the polyester filament non-woven geotextile production equipment provided by the invention, the occurrence of the phenomenon that the conveying of hot air is affected since the filter plate cannot timely discharge the hot air due to air pressure increasement can be prevented, the occurrence of the phenomenon that theconveying efficiency of the hot air is affected by low flowing speed of the hot air can be prevented, and air can be stopped so as to be conveniently heated.