279results about How to "Reduce production and maintenance costs" patented technology

The invention relates the chemical engineering field, especially a H2 and CO2 inhibiter. H2 and CO2 are produced accompany to oil-gas field exploitation and transfusion process, and can corrode exploitation equipment. The inhibiter contains at least (by wt. %): isopropyl alcohol 10-30, fatty alcohol polyoxyethylene ether .1-0.5, and litol polyoxyethylene ether 0.1- 1.0. The inhibiter can be used in oil/water well with high temperature and pressure, and has the advantages of good corrosion resistance, low consumption, low cost and high efficiency.

The invention discloses a method for detecting the temperature field of a calcination rotary kiln and a device thereof. The method comprises the following steps: mounting a group of temperature thermocouples in the inner lining of the kiln body of the calcination rotary kiln in the axial direction of the kiln body; determining the amount and the distribution clearance of the thermocouples according to the requirements for measuring the precision of temperatures on the preheating section, the calcining section and the cooling section of the calcination rotary kiln; and connecting each thermocouple with the wireless communication box mounted on the shell of the calcination rotary kiln body, so that the wireless communication box can transmit the temperature signal of each thermocouple to a computer analysis system on a real-time basis. The invention has the advantages that the real-time measurement of the distribution of the temperature field of the overall rotary kiln is realized; the most authentic material temperatures can be directly measured without being interfered by the flue gas and the flame in the kiln; the construction cost of the complete set of devices is far lower than that of the prior infrared thermometer system; the spare parts are cheap, and the maintenance and the replacement are convenient, therefore, the production cost and the maintenance cost are reduced; and the technical characteristic is reliable, therefore, the failure rate is low. As accurate measurement is realized, the invention provides a calcination control system with strong support for improving the automatization.

The invention relates to a complex processing method for prolonging the service lift of chain grate key parts, belonging to mechanical manufacturing and material processing and application technical field, which comprises: firstly, surface nondestructive testing is carried out on the key parts of the chain grate of process; molten salt complex processing are carried out in parts of the surface according to the surface drawbacks tested by surface nondestructive testing; before the laser shocks, the workpiece surface is coated with black coating layer and use water as protective layer, and the laser shock processes the area which is easy to fatigue and fracture and has concentrated stress. The molten iron pretreatment spray-feeding device before iron-making blast furnace has the advantages of simple shortcut, high efficiency, low maintenance cost, short processing time (30 minutes to 5 hours), and the continuous operation can be realized, thus, high efficiency of production is ensured.

The invention discloses a force balance type electric cylinder featuring fluid circulation, comprising a bearing, a screw, a screw nut and an oil cylinder body. The oil cylinder body comprises a cylinder barrel, a front end cover, a rear end cover and a piston rod which can move back and forth in the cylinder barrel. The front end cover and the rear end cover are respectively arranged in front ofand at the back of the cylinder barrel. The screw nut is in rigid connection with the piston rod. A first oil holding cavity is formed between the screw and the piston rod. A second oil holding cavityis formed between the cylinder barrel of the oil cylinder body and the piston rod. A first hydraulic circuit connector and a second hydraulic circuit connector are arranged on the oil cylinder body and are respectively connected with a first one-way valve and a second one-way valve, with opposite flow directions, by pipelines. An energy accumulator is connected between the first one-way valve andthe second one-way valve by a pipeline. The front end of the cylinder barrel is provided with at least a group of first magnetic inductive switches and the rear end thereof is provided with at leasta group of second magnetic inductive switches. A permanent magnet guiding slide block is arranged at the rear end of the piston rod. A guide rail is arranged at one side of the cylinder barrel. A tensile hydraulic damping buffer mechanism for limit protection and a retractile hydraulic damping buffer mechanism for limit protection are arranged between the oil cylinder body and the piston rod. Thefirst oil holding cavity, the second oil holding cavity, the first one-way valve, the second one-way valve, the energy accumulator and a connecting pipeline are full of hydraulic circulating media with pressure.

The invention discloses a buffering splash-protection dovetail molten iron trough of a pig machine. The trough is designed into two sections of lap joint type dovetail structures and comprises a head buffering molten iron holding slot, a middle transition molten iron trough and a tail dovetail molten iron nozzle. The buffering splash-protection dovetail molten iron trough is integrally arranged between a molten iron tank of the pig machine and the upper chain belt of a driven wheel. Molten iron is cast to the head buffering molten iron holding slot through the molten iron tank and forms a molten bath, thereby relieving the impact of the molten iron. The middle transition molten iron trough buffers the flow of the molten iron twice, and the molten iron and the chain belt forms a 6-10 degree angle of inclination, and the even flow distribution of the molten iron enables the molten iron to evenly flow into a pig mold in a thin and wide waterfall shape. Compared with conventional integral molten iron troughs, the dovetail molten iron trough can reduce molten iron splashes, improve the yield of the molten iron, improve the working environment of operators, relieve the erosion to the pig mold and prolong the service life of the pig mold, and the surface quality of iron blocks is good. Moreover, transportation, installation and debugging are convenient, and meanwhile, the production and maintenance costs are reduced.

The invention discloses a pier protection device for a bridge in a debris flow channel. Aiming at the defects that an existing product is unfavorable in long-term use and high in maintenance and replacing cost, the pier protection device is of a semi-enclosing structure enclosing a pier and is fixed in a channel through vertical columns; the front end of the pier protection device serves as a water-coming tip with the included angle being theta, and the tail ends of two water-coming tip bevels of the water-coming tip extend backwards in the channel direction to form side bars; and the pier protection device is of a fence structure with transverse fence bars. The invention further provides a design method of the pier protection device. The design method is used for scientific design of important parameters such as the interval D of the fence bars, the height H of the protection device, the width B of the protection device, and the length L of the side bars. According to a product of thepier protection device, the movement state of debris flow can be changed only in a very small area at a pier, the pier protection device overall has the functions of protection of trapping coarse sand and discharging fine sand and homeopathic dredging, and secondary hazards are prevented; the product is concise in structure, convenient to mount, low in production and maintenance cost and capableof being used for a long term; and the matched design method is scientific and reasonable.

The invention discloses a double heading communication system of a double heading train set. The system comprises a double heading communication device which is used for collecting state information of a current train and converting the state information into carrier signals, and a hard-wired cable which is connected with the double heading communication device and is used for transmitting the carrier signals to other trains. According to the double heading communication system disclosed by the invention, a locomotive hard-wired double heading line is reused by the hard-wired cable, so it is unnecessary to set up a special cable channel additionally, production and maintenance costs are greatly reduced, and a utilization rate of line resources is improved. According to the double heading communication device, the hard-wired cable is taken as a physical layer dielectric carrier, the state information of the current train is sent to the other trains in a power carrier communication mode, and the whole double heading train set is enabled to realize internal intercommunication. According to the power carrier communication mode, the communication speed is fast, the data transmission volume is high, and the complicated communication demands of the double heading train set can be satisfied. The invention also discloses a double heading train set comprising the double heading communication system. The double heading train set has the advantages as mentioned above.

The invention discloses a lifting support plate bracket for receiving a material of a steel plate shearer in the field of the steel plate shearer. The lifting support plate bracket comprises two guide rods fixedly arranged on the support plate; the guide rods are arranged in a guide groove on a guide holder in a sliding manner through a guide shaft; a limiting block is arranged at the bottom of the guide groove; a limiting baffle plate is also arranged on the guide holder; a limiting bearing matched with the limiting baffle plate is also arranged on each guide rod; a cylinder piston rod is hinged at the bottom of the support plate; the gravity center of a mechanism composed of the support plate and the guide rods is positioned between a hinge point on the support plate and the guide bearing, and a cylinder drum is hinged on the base. According to the lifting support plate bracket, the material receiving work of a board is finished by two cylinders matched with the guide bearing and a limiting bearing to control the support plate to act and rotate up and down; the material receiving control process is more convenient and reliable; the failure rate is reduced; the production cost is reduced, and the lifting support plate bracket can be applied to the material receiving process of the steel plate shearer at the same time.

The invention relates to a thickness control method of a mixed material layer, comprising the following steps of: acquiring round roller speed, round roller output coefficient, speed of mixed material sintering, width of a sintering pallet and density of the mixed material; multiplying the round roller speed with the round roller output coefficient to obtain a product which is then divided by the product of the speed of the mixed material sintering, the width of the sintering pallet and the density of the mixed material to obtain a quotient which is taken as the current thickness of the mixed material layer; and regulating the ratio between the round roller speed and the speed of the mixed material sintering to cause the current thickness of the mixed material layer to be close to the set layer thickness. The invention also discloses a thickness control system of the mixed material layer. The method realizes control to the thickness of the mixed material layer by a soft-sensing mode, thus not only saving the production and maintenance cost of a manufacturer, but also having the advantages of stable and reliable control, etc.

The invention discloses a catalyst for producing methyl acetate through carbonylation of dimethyl ether. The catalyst is characterized by comprising a modified EMT molecular sieve, wherein the modified EMT molecular sieve is obtained by sequentially processing by virtue of acid and pyridine and/or a pyridine substitute; the pyridine substitute is a compound formed by independently substituting one, two or three of five Hs on a pyridine ring with a substitute selected from F, Cl, Br, I, CH3, CF3, CH3CH2 or NO2. The catalyst has very high stability and methyl acetate selectivity and can still preserve high methyl acetate selectivity after reacting for a long time.

A button delivery rocker arm modification mechanism of a button attaching machine tool comprises a stepping motor and a rocker arm, wherein the stepping motor is vertically installed on a pedestal. The mechanism is characterized in that a driving wheel is installed on a stepping motor output shaft, the driving wheel is connected with a driven wheel through a synchronous belt, a driven wheel output shaft is connected with a rocker arm rotating shaft, the rocker arm rotating shaft is installed inside a rocker arm rotating base, a sliding air cylinder is fixed on an air cylinder base, a sliding air cylinder threaded rod penetrates through the air cylinder base and is connected with a rocker arm rotating base installation portion, the air cylinder base is fixed at the upper end of a support, a linear guide rail is fixedly installed on the side face of the support below the air cylinder base, a sliding block is installed on the linear guide rail, and the inner side face of the rocker arm rotating base installation portion is fixed on the sliding block. According to the button delivery mechanism, the rocker arm is driven by the synchronous belt to conduct a reciprocating rotation motion, the stability, the precision, the flexibility, the performance and the service life of the button delivery mechanism are greatly improved, the whole mechanism is simple in structure and low in assembly difficulty and commissioning difficulty, the mechanical assembly efficiency is improved, and the production and maintenance cost is reduced.

The invention discloses a production method for polyethylene double-crest reinforced spiral winding pipes, and belongs to the field of water supply and drainage pipes. The production method includes the steps of extruding melted regenerated polyethylene by a regenerated-polyethylene twin-screw extruder, extruding coated polyethylene by a coating extruder, extruding a polyethylene reinforced double-crest sectional material by a mold for the polyethylene reinforced double-crest sectional material, cooling and shaping the polyethylene reinforced double-crest sectional material by a shaping sleevein a vacuum shaping and cooling water tank, continuously drawing the polyethylene reinforced double-crest sectional material out of the vacuum shaping and cooling water tank by a tractor, and feedingthe polyethylene reinforced double-crest sectional material into a winding machine. The production method has the advantages that heating, splicing and winding are performed synchronously, and integrated online forming is realized, so that the cost of the pipes is reduced, and the strength of the pipes is improved; the production method can be widely applied to the pipe production field.

The invention belongs to the technical field of belt type roasting machine pelletizing techniques, and particularly relates to a hot air supply system for a belt type roasting machine. The hot air supply system is characterized by comprising a pulverized coal bin, wherein a pneumatic pulverized coal transmission device and a dust collection device are arranged at the top of the pulverized coal bin; an anti-blocking safety protection device, a valve body and a pulverized coal metering scale are arranged at an outlet of the bottom of the pulverized coal bin; the pulverized coal metering scale is connected with a coal injection Roots blower and a combustion-supporting Roots blower; the coal injection Roots blower and the combustion-supporting Roots blower are respectively connected with a powdered coal combustor in a pulverized coal combustion chamber by connecting pipelines; the pulverized coal combustion chamber is connected with a hot air pipeline I and a hot air pipeline II respectively; the hot air pipeline I is arranged above an upper shield of a roasting section of the belt type roasting machine; the hot air pipeline II is arranged above an upper shield of a soaking section of the belt type roasting machine; and a temperature measuring device is arranged in the pulverized coal combustion chamber. The hot air supply system is simple in structure, reasonable in design, high in automation degree, and stable in system operation; the belt type roasting machine can use pulverized coal as a fuel; the temperature is easy to control; and the heat efficiency of the pulverized coal is high.

The invention discloses an annular gluing device. The annular gluing device comprises a circular turnplate, a gluing manipulator and a gluing machine, wherein a tooling plate is arranged on the circular turnplate; the manipulator is arranged on the right side of the circular turnplate; the gluing machine is connected on the manipulator; a machine frame is arranged on the outer sides of the turnplate and the manipulator; the machine frame surrounds the turnplate and the manipulator; the gluing machine is arranged at the left end of the machine frame; a sliding mechanism is arranged at the upper end of the machine frame; a pressing block is arranged on the sliding mechanism; a telescopic device is arranged in the middle of the sliding mechanism; the telescopic device is controlled by a penumatic unit; the telescopic device is correspondingly arranged on the tooling plate on the turnplate. Through arrangement of the turnplate and the tooling plate, annular machining of a lamp shell is achieved, the machining operation of thee whole lamp shell can be completed by only two workers, and the gluing operation of the whole lamp shell is annular, so that the lamp shell gluing efficiency is improved, and the labor cost is reduced.

The invention provides a washing machine. The machine comprises a main machine body, a drainage pump and a water flow distribution assembly. Multiple water flow channels are formed in the main machinebody; the drainage pump is arranged in the main machine body; the water flow distribution assembly is arranged in the main machine body and provided with a water inlet and multiple water outlets, thewater inlet is connected with the drainage pump, the water outlets are communicated with the water flow channels respectively, and water which flows into the water flow distribution assembly can selectively enter one of the water flow channels under the effect of the water flow distribution assembly. According to the washing machine, through arrangement of the water flow distribution assembly, multiple requirements of the washing machine in the working process can be met through one drainage pump, on one hand, the number of water pumps is reduced, and the cost of producing the washing machineis lowered; on the other hand, the space is saved, the internal structure of the washing machine is simplified, the whole system is simplified under the condition of guaranteeing normal work of the washing machine, the washing machine is convenient to operate, and the performance parameters of the washing machine are improved.

The invention discloses a method for defoaming a pipeline from the mouth of a gas well to a separator by using a solid defoamer device. The method comprises the following steps of: mounting the solid defoamer device on the gas transmission pipeline between the mouth of the natural gas well and the separator; specially making a defoamer be in a solid state and putting the solid defoamer into the solid defoamer device; enabling the solid defoamer to be in direct contact with transmission fluid; and dissolving the solid defoamer by the transmission fluid. The method has the beneficial effects that: the method is energy-saving and consumption-reducing and has no need of using a plunger pump and electric energy; the solid defoamer device has an automatic adjustment function, when liquid is produced, the solid defoamer is dissolved, when the liquid producing capacity is larger, more solid defoamer is dissolved, and thus, the waste of pharmaceutical products is avoided; the solid defoamer is placed in the solid defoamer device at a time and can be used for a number of days, and the daily putting is not needed, so that the cost for production and maintenance of the gas well is greatly saved, the technical difficulty and the labor intensity in operation are reduced, and the labor power is saved; and the fluid is in sufficient contact with the solid defoamer, the defoaming is complete, and the accident that foams cross a tower can be effectively prevented, so that the method is safe and reliable.