Concrete double horizontal shaft forced mixer is mainly used for mixing various powdered materials。Can produce a variety of powder mixing materials。Its aggregate can be wet fly ash, calcium carbide mud, phosphogypsum, sand, slag and so on。专业Concrete machinery图片It is mainly used as a supporting host for all kinds of standard brick, gray sand brick and other production lines。It is one of the important equipment in the production process of autoclaved fly ash brick and lime sand brick。Concrete double horizontal shaft forced mixer is mainly composed of shell, spiral shaft assembly, drive device, piping, cover plate, chain cover and other components (see the random external drawing) 1 专业Concrete machinery图片The shell is mainly composed of plate and section steel, welded and formed in the factory, and assembled with other components, which is the support of the two-shaft mixer。The shell is tightly sealed, and there will be no phenomenon of flying ash and leaking ash。2 Screw shaft assembly is the main component of double-shaft mixer, its components are mainly left and right spiral shaft, bearing seat, bearing sleeve, bearing cover, gear, sprocket, oil cup, blade and other parts。

JS500, JS750 concrete mixer is composed of feeding, mixing, unloading, water supply, electrical and other parts。1.Concrete machineryMixing system The mixing system of concrete mixer is composed of motor, pulley, reducer, open gear, mixing drum mixing device and oil supply device。The motor drives the two-stage gear reducer through the belt, and the two outputs of the reducer drive the two horizontal mixing shafts to reverse and rotate at the same speed respectively through the open gear。The original arc part of the mixing cylinder of the concrete mixer is welded, and the mixing cylinder is inlaid with eight kinds of lining plates, all of which are connected with the cylinder by countersunk screws。The mixing drum is equipped with two horizontal mixing shafts, each shaft is separately equipped with mixing blades。The mixing arms near both ends of the mixing drum are respectively provided with side blades to scrape off the concrete on the end faces。Clearance between blade and liner ≤5mm。The two viewing caps on the mixing drum can be pushed out opposite each other when lifted 90 degrees。A special sealing device is provided at the joint of the mixing shaft and the two ends of the mixing cylinder。In order to ensure the sealing quality, a special oil feeder is provided on the end face of the mixing cylinder。2.Feeding system The feeding system is composed of hoist, feeding frame, hopper, feeding nozzle, etc。The brake motor drives the drum to rotate through the reducer, and the wire rope pulls the hopper through the pulley to climb up the loading rack track. When it climbs to a certain height, a pair of rollers on the hopper door at the bottom of the hopper will enter the horizontal fork of the loading rack, the hopper door will automatically open, and the material will be put into the mixing cylinder through the feed nozzle。In order to ensure the accurate positioning of the hopper, a limit switch is installed on the loading frame. When the hopper drops to the bottom of the pit, the wire rope is slightly loosened, the spring lever mechanism makes the lower limit action, and the hoisting mechanism automatically stops。The lower limit and spring lever mechanism are installed on the top of the upper guide。The feeding rack part is collapsible。专业Concrete machinery图片It is bolted and folded during transport to reduce the transport height。The brake motor can ensure that the hopper can stop reliably at any position when running at full load, and the size of the brake torque is adjusted by the large nut in the rear seat of the motor。JS500, JS750 concrete mixer is composed of feeding, mixing, unloading, water supply, electrical and other parts。1.The water supply system is composed of water pump, throttle valve, cleaning device, spray device, etc。The throttle valve can adjust the flow of water, and the total water supply is adjusted by the time relay。2.The unloading system of concrete mixer is composed of unloading and unloading manual operation lever。Remote operation is possible if an electric push rod is installed。The discharge door is installed at the bottom of the mixer, and the motor discharge is realized through the electric push rod。The support of the electric push rod is installed on the chassis, and there is a limit switch above and left of the discharge door to control the opening and closing position of the discharge door, and the sealing of the discharge door can be ensured by adjusting the position of the seal strip。The manual unloading lever is used for emergency unloading during temporary power failure and when the electric push rod fails. When the handle is in use, the electric push rod should be removed。There are two limit switches in the terminal box of the electric push rod, which play the role of overload protection。3.The electrical control circuit of the concrete mixer is equipped with circuit breakers, fuses and relays, which have the functions of short circuit protection and overload protection。All control buttons and indicators are arranged on the distribution boxes, and a door lock is provided, and a protection door is provided outside the button。Easy operation and maintenance, if centralized control in the operation room, you can replace the special control cabinet。Connect ground cables to the circuit board in the power distribution box to ensure safe and reliable operation。The electrical control power supply is 380v three-phase four-wire power supply, and the voltage tolerance is ±10%, otherwise it is forbidden to use。If the user provides its own power supply, the JS500 generator capacity should be less than 50kVA。JS750 generator capacity should be less than or equal to 100kVA。The surface temperature rise of the motor is less than 60 degrees, and the live part is the shell insulation ≥0.5MΩ

Concrete mixing station is the necessary machinery for mixing concrete in construction machinery,Concrete machinery图片With the expansion of China's real estate construction industry, highways, DAMS, hydropower stations and other construction and the promotion of commodity cement，The output of cement products is increased，Concrete mixing plant sales increase，As a result, there have also been different output, different types of mixing stations, widely recognized by the maid customers，And exported to Russia, Europe, India and other countries and regions。In recent years, the mixing station plays an important role in many industries，So that the JS series of mixing station gradually become the leading product of mixing stick cement，JS350 among them,JS500, JS750, JSI000 is a small and medium-sized mixing plant，JS1500, JS2000,J52500, JS3000 is a large mixing equipment，Its processing technology is more complex than the ordinary mixing station，Be a little more demanding，It can also be combined with the batching unit into a simple mixing station。With the increase of mixing plant manufacturers, mixing plant market competition has entered the white heat period, although most enterprises to produce small and medium equipment, but under the pressure of increased competition, mixing plant enterprises are moving toward personalized service, technological innovation, improve the ability of the mixer host,专业Concrete machineryProduct diversification and other directions of development。

(1) The selection of admixtures There are many admixtures with different effects, especially for different types of cement。专业Concrete machinery图片In the selection of admixtures, should be based on the needs of the project, the site of the material conditions, with reference to the relevant information, through the test to determine。(2) Determination of admixtures The admixtures of concrete have appropriate admixtures, and the admixtures are too small, often unable to achieve the expected effect;If the amount is too large, it will cause waste, sometimes affect the quality of concrete, and even cause quality accidents。Therefore, the optimal dosage should be determined by test。(3) Adding methods of admixtures Different methods of adding admixtures into concrete mixes, the effect is different。For example, the effect of post-blending method is better than that of pre-blending method and co-blending method, and its dosage is only half of that of pre-blending method and co-blending method。The so-called first blending method is to mix the water-reducing agent with cement first and then mix with aggregate and water;The co-blending method is to dissolve the water-reducing agent in water to form a solution and then add it to the mixture to stir together.Post-mixing method means that after the concrete mix is sent to the pouring site, water reducing agent is added and then evenly mixed again for pouring。 因此，Concrete machinery图片The use of admixtures should be determined by tests according to engineering characteristics, material conditions and construction conditions。

凉山专业Concrete machineryMixing plant is mainly used for concrete engineering, the main purpose is to mix mixed concrete, also known as concrete mixing plant。HZS series commercial concrete mixing plant adopts the international popular modular rapid assembly structure, imported or domestic mixing host, double machine double control computer control mode, anti-noise, anti-dust pollution, environmental protection design,Concrete machinery图片It is a new generation of cement concrete mixing equipment, which is suitable for urban and rural commodity ready-mixed concrete, road and bridge, water conservancy, airport, port and other large infrastructure construction projects and places with large demand for concrete。Mixing station can be divided into single station and double station，As the name implies，Single station that each mixing station has a mixing host，The two-machine station has two mixing machines，Each mixing machine corresponds to a discharge port，Therefore, the double mixing station is 2 times the production capacity of the single mixing station，The two-machine mixing plant is named 2HZS ，For example, 2HZS25 refers to a two-machine mixing plant with a mixing capacity of 2*25=50 cubic meters/hour。

Concrete mixing stations are becoming more and more common, and more and more people are using concrete mixers。However, many people do not know how to clean a concrete mixer。First, before using the concrete mixer, check that the controller is in good condition。Concrete machinery图片After shutdown, pour the water and stones into the mixing bucket for 10 to 15 minutes for cleaning, and then remove the water and stones。When the operator needs to enter the mixing cylinder for cleaning, in addition to cutting off the power, remove the fuse, but also need to lock the switch box。Secondly, the concrete mixer should be regularly maintained, such as cleaning, lubrication, refueling and so on。Third, we must remember that the accumulation of concrete in the concrete mixing drum cannot be removed by hammering。We had to chisel it out。Fourth, winter use专业Concrete machinery图片Pay attention to cleaning the drum of the concrete mixer with water after the end of the work, and drain the water in the pump, water tank and water pipe to avoid frostbite of the pump, water tank and water pipe。