How do we distinguish the quality of concrete mixing station？The quality of cement is directly related to the quality and durability of the building, and is also the key link in the quality control of the mixing station!However, the current order of the cement industry is not good: unqualified clinker in cement clinker is widespread, the content is far below the standard value is normal, small cement can not be called cement, can only be called powder。Cement supervision is seriously missing!Testing strength, setting time and stability are far from enough。1、专业Cement tank用途Clinker: standard requirements, calcium silicate mineral is not less than 66%, calcium oxide and silicon oxide mass ratio is not less than 2。But are our cement factories often up to standard？Strength tests are usually performed only。2, cement clinker content: standard requirements, ordinary Portland cement clinker, gypsum content should be greater than or equal to 80%, less than 95%。But now, even if the large cement clinker content is generally only 65% to 70%, let alone the small cement plant near it in Beijing (in fact, can only be called the grinding station, do not know how to make a cement plant name), the general knowledge of small cement clinker is only about 50%。Small cement cannot be called cement。At best, it's a mixture!3.甘孜专业Cement tankTest method: Cement supervision by Technical supervision Bureau，Random inspection once a year，Can't restrain the production of cement plant!The inspection items of the national inspection standards only have strength, setting time and stability，Some chemical indicators are far from adequate!These indicators are easily met with small cement!We should strictly test the clinker，Clinker content testing should be increased when accepting cement，Not only strength, setting time and stability should be tested，当然，Magnesium oxide, trisulfur oxide and other chemical indicators can not be less!

1) The ground screw bolt of the cement silo is poured into the reserved pit of the foundation. When the center line of the cement silo support is adjusted to coincide with the center line of the foundation, the above four flanges are adjusted on the same level (measuring method: theodolite or transparent plastic hose with diameter of 8-10 and color water measurement method), the concrete can be selected for casting。The grade of the concrete used in the reserved pit should be one level higher than the concrete used in the foundation, and in the winter construction, in order to shorten the construction period, the concrete used should be added with early strength antifreeze。Wait for the foundation concrete to set 5-7 days before installing the cement silo body. When installing the cement silo body, it is necessary to measure the verticality of the cement silo body with a theodolite. The verticality is one thousandth of the height。In order to shorten the construction period, embedded parts can also be used in infrastructure instead of anchor bolts to fix cement silos or mixers。(2) Installation of the mixing machine: the bottom plane of the mixer chassis is properly padded，Attach the legs to the main engine with hinges，Install the cement scale，水秤，After weighing the admixture，Ready to lift，Measure and adjust engine chassis，Make it horizontal，After the center line of each leg coincides with the center line of the foundation, the anchor bolt can be poured into the reserved pit (or welded between the base and the reserved embedded part)..(3) Installation of other parts: after the installation of the main engine and cement silo，Screw conveyor can be installed，Before hoisting，Check the filling of oil and grease at each lubrication point，An empty car running test is to be conducted，Find problems and solve them in time，Part of the dosing machine installation，Position as required by the foundation drawing，The small dosing machine can be placed on the solid foundation pier plane，Large batching machine requires pouring anchor bolts，After the installation of each mechanical part，Check that all lubrication points of various equipment are filled with lubricating oil (the lubricating oil suitable for low temperature conditions must be replaced in winter in Northeast China) or grease，Wiring and empty car running test can be performed according to the requirements of the manual and electrical schematic diagram.It can accurately and conveniently input, adjust and modify the set value and formula number of each material, and multiple common concrete ratios can be stored inside the microcomputer。2. 专业Cement tankThe control system has perfect self-locking and interlocking functions to ensure the accurate and reliable operation of the system, and has common fault detection and alarm functions。3. The whole mixing plant is equipped with a good lighting system, and the main control room, mixing area and material area are equipped with lighting。4. The concrete mixing plant uses microcomputer to control the timing requirements of the process, and realizes automatic control of the production process from measurement to feeding, mixing to discharging. The management of the entire production site of the mixing plant is completed by two operators and two auxiliary personnel。5.The weighing system of concrete mixing station is equipped with zero output.Cement tank用途Can automatically remove the tare weight, correct the drop, for the single weight single material weighing with a button and fill function, more effectively control the measurement accuracy, with a light alarm device。

1, mixing system Mixing system by motor, reducer, a pair of open gear and chain drive, mixing device and mixing tank composition。The motor is mounted on the end face of the reducer, and drives the two horizontally configured mixing shafts to reverse equal speed rotation respectively through a pair of open gears and chain drives。The mixing shaft is supported in the groove mixing tank formed by welding steel plate。Each stirring shaft is equipped with six stirring blades, and the mixture in the stirring tank is driven by the stirring blades to make "mutual cutting and turning" operation and alternately move according to the spiral trajectory。The combination of horizontal eddy current and vertical reverse flow agitation makes the material get rapid and strong agitation。专业Cement tank用途Due to the small linear speed of the perimeter of the mixing blade, the energy consumption of the mixing concrete, the wear of the blade and the lining plate are much smaller than other mixers。The shape, quantity and arrangement of stirring blades are the main factors affecting the mixing quality and technical performance of the mixer。A special floating sealing device is provided for the connection of the mixing shaft and the two ends of the mixing tank。The sealing device is also equipped with a special oil feeder, the main mixing shaft rotates, and the oil feeder automatically supplies oil to each sealing part to ensure the lubrication of the mixing shaft shaft end seal and support。2. Feeding system Feeding system is composed of hoist, feeding rack, hopper, etc。When loading，Load the mixture to be stirred into the hopper，The starting winch motor drives the drum to rotate through the reducer，When the hoisting wire rope pulls the hopper up to a certain height along the loading rack track，A pair of rollers on the bottom of the hopper enter the feeder level fork，The door opens automatically，Feed the material into the mixing tank。3. The discharge device is equipped with a discharge door at two arcs on one side of the cylinder, which can be rotated around the horizontal axis to open and close the eyes through an electric push rod。The horizontal shafting at both ends is supported on a support seat fixed to the bottom of the mixing tank。The length of the discharge door is slightly shorter than that of the tank. When the discharge door is opened, most of the mix is discharged by its own weight, and the residual mix is forced out by the mixing blade, so that the discharge is clean and fast without segregation。The joints of the discharge door and the mixing tank are sealed with wear-resistant rubber strips, and the backing plate on the support seat can be adjusted to ensure the sealing after wear。4、 Cement tank用途Water supply system The water supply system is made of unipolar centrifugal pump and quantitative principle。Under the guise of adjusting the pointer on the water tank dial, different amounts of water can be supplied。The two spray pipes are located directly above the two mixing shafts。The inlet and outlet of the water tank is controlled by the joystick of the three-way valve。When the water tank is supplied, the three-way valve cuts off the water discharge pipe, and the water inlet pipe is closed when the water tank is discharged。5, rack The rack is composed of bottom frame, legs, railings, platform, ladder, etc。Except for the railing, the rest are connected by bolts to the rack, and the railing is inserted into the socket hole on the rack。6. Electrical system。

Winter mixing plant how to maintain the winter season temperature is very low, the construction conditions and the environment are unfavorable, is the frequent season of engineering quality accidents, especially the concrete project。Mixing station as a necessity for engineering equipment,甘孜专业Cement tankHow to do winter maintenance work?1, the winter temperature is too low, mixing station does not produce, please exclude residual water in time to prevent freezing and freezing water pump。At the same time, pay attention to the water in the water additive pipeline to prevent the water from freezing in the pipeline, affecting normal production。2. It is strictly prohibited to wash the floor with high pressure water。Because high pressure water is not easy to control, it is easy to splash onto the motor, electric control box, wire trough and other equipment。Although all kinds of equipment generally have waterproof measures, a large amount of water with pressure will still cause motor short circuit, electric control box water and other conditions。A long period of soaking water in a cable trough may cause interface leakage and cable string faults, which may cause equipment damage or even safety accidents。3, winter is coming, should be timely remove the mixing station drum next to the sand。Because the sand is wet, if there is too much accumulation, the sand and stone will freeze and cut the drum like a grinder, which is easy to cut off or damage the drum。4, should always check whether the roller is not running the hair clip phenomenon, if the roller does not run, will cause the belt on the roller dry friction, light damage to the roller, heavy damage to the belt。5, mixing station in the non-production should be timely air compressor and air road in the residual gas exclusion, because the residual gas is easy to solidify into water, cold easy to freeze,专业Cement tank用途May cause the next production of the gas path is not smooth or the valve and cylinder operation is not good。

JS350 double horizontal shaft forced mixer mainly consists of专业Cement tankMixing system, feeding mechanism, discharging device, water supply system,Cement tank用途Electrical system composition。

The classification of commercial concrete mixing equipment is whether it is self-falling type and forced type？The classification of commercial concrete mixing equipment is divided into falling type and forced type。Which kind of ready-mixed commercial concrete mixing equipment should be preferred？why？Ready-mixed commercial concrete mixing equipment should be superior to the latter。Mixing more uniform, higher efficiency ready-mixed commercial concrete mixing station is the current commonly used measuring device is the electronic balance measuring device？Measurement methods are divided into several types？At present, the measuring device commonly used in ready-mixed commercial concrete mixing station is the electronic balance measuring device。There are two kinds of measurement。Addition and subtraction。In the daily maintenance process to do measurement management work: 1.专业Cement tank用途Periodic check。2.Prevent electric shock and other overvoltage and other damage。3.Avoid overload。4.Cement tank用途.Keep clean and dry。First important。