Concrete mixing station is divided into four parts: sand and stone feeding, powder (cement, fly ash, expansion agent, etc.) feeding, water and admixture feeding, transmission mixing and storage。After the mixer control system is powered on, the operation interface of human-machine dialogue is entered, and the system is initialized, including the formula number, concrete grade, slump, production square amount, etc.According to the weight of each bin, measuring hopper detection, output empty or full signal, prompting the operator to determine whether to start the mixing control program。Start the sand and stone belt motor to feed into the metering bucket;Open the butterfly valve of fly ash and cement tank, and start the screw machine to transport fly ash and cement to the metering bucket;Open the control valve of the water tank and admixture tank to allow water and admixture to flow into the metering bucket。优质料斗producerAfter the metering meets the set requirements, the metering bucket door is opened, the ingredients are mixed into the mixer that has been started, and the mixer door is opened at the set time, and the concrete enters the mixing car that has been received。1.Each cylinder, control valve and motor operate according to the requirements of the concrete mixing process, and the control of each cylinder, control valve and motor must be accurate, stable and reliable。2.The control system has two working modes, automatic and manual, and the relationship between each other is independent and restricted。3.料斗producerThe system has good anti-interference ability and perfect alarm self-protection function。4.By communicating with the computer, the system working state and fault alarm can be displayed。

Operation rules for concrete double horizontal shaft forced mixer 1.优质料斗producerBefore use, check the power supply first press the switch, and then close the tool brake to check whether the operation is flexible。Whether the vibrator, drum and rod operate normally。The winding of the wire rope on the drum;Whether the lifting of the discharge platform is normal。If the fault is found, notify the mechanical and electrical team to deal with it。After handling, you can use it。2, a feeding should not be too much, according to the ratio of feeding, pay attention to the water cement ratio。Stir well, a stirring time should not be less than one minute, the normal mix of concrete, should be very thick porridge。3, fixed special boot, the driver should be familiar with the operating system principle, found fault immediately stop the check。4、优质料斗producerElectrical parts should be taken care of and cables should be protected to prevent damage。5, the mixer should be flat, the mixer should not stand under the funnel, to prevent injury when the funnel falls。6. When temporarily stopping the rail, the mixer should be started regularly (every 20 minutes) to prevent the concrete from solidifying or pouring out the concrete in the roller, and wash the roller with water。7. After the concrete is poured and shut down, the mortar outside the roller and machine should be washed with water in time。The feed hopper is cleaned once per shift, so that the feed material falls to the position specified by the party when it is placed, and a layer of oil is applied on the surface for next use。8. Conscientiously implement the shift transfer system, and explain the operation of the working machine and matters needing attention clearly.

Concrete mixing station can not be immediately left after work 1.优质料斗producerAfter the work is completed, the residual water and additive in the pump, additive pump, water tank, additive tank, water and additive pipeline should be drained to prevent damage to the pump and its pipeline, and start the additive pump of the pump to run for 1-2 minutes。2.Clear the ash accumulation inside and outside the wall of the mixing tank, the concrete residue on the discharge port, the mixing shaft and the discharge door, wash these centers with water, and if necessary, put in a small amount of stones and water to stir for a few minutes before releasing。Clean vehicle, additive tank and supply system with water。3.The smooth points are located in the discharge door shaft of the mixer, the door shaft of the storage hopper and the weighing hopper, the belt conveyor, the machine support wheel, the press wheel, the roller, the bearing, the transmission chain, the upper and lower end bearings of the spiral shaft and the main machine gear。4.优质料斗producerCheck the wear condition of blades, scrapers, mixing arms, etc. Adjust the clearance or change it if necessary;Vibrator coupling bolt is loose or not;Check contactors in electrical appliances;Whether the static contact of the intermediate relay can be damaged and burned。

Hot summer conditions may cause cracks in the poured concrete, which will seriously affect the quality of the entire construction project。How can we reduce the temperature during concrete pouring in summer？Chongqing Shiqiao Dinggu Construction Machinery Co., Ltd. put forward the following suggestions: 1.优质料斗The following measures should be adopted to reduce the aggregate temperature in the material field: ① The aggregate of the finished material field, the stacking height should not be too low, and there should be sufficient reserve;② Take material through ridge;③ Build pergola, spray fog (except sand), etc。2.Pre-cooling coarse aggregate can be pre-cooled by air cooling, soaking water, spraying cold water and other measures。If water is used for cooling, there should be dehydration measures to keep the water content of the aggregate stable。3.When mixing concrete, cooling measures such as low temperature water and adding ice can be used。When adding ice, ice or ice chips can be used, and the mixing time can be extended appropriately。4.Reduce the temperature rise of concrete (1) shorten the transportation time of concrete, promptly smooth the concrete after warehousing, speed up the concrete warehousing covering speed, shorten the exposure time of concrete;② Concrete transport vehicles should have heat insulation and sunshade measures;3.优质料斗producerIt is advisable to use spray fog and other methods to reduce the air temperature around the warehouse surface.(4) Concrete pouring should be arranged as far as possible in the morning and evening, night and cloudy days;⑤ Before the concrete levelling after warehousing is completed to the next layer of concrete, it is appropriate to use thermal insulation to cover its top joint。Summer concrete in the construction process should pay attention to every step of preventive measures, only in this way can improve the quality of the overall construction project。

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。料斗producerAfter 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优质料斗producerPay 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。

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、优质料斗producerClinker: 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.眉山优质料斗Test 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!