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How can be a qualified concrete pump operator?

Tuesday 24th November 2015 2:27 AM

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At first, the operator should be clear about pumping theory of concrete pump. Since different pumps have different pumping theories, the operator should take appropriate measures according to the type of concrete pump.

Specific skills are needed to be a concrete pump operator. In the projects, he must take up many responsibilities, such as driver, safety officer, electrician, decision maker, professional clear technician, and concrete specialist knowing what kind of concrete can be pumped.

An excellent concrete pump operator is also a foreman of construction site. As a core worker, he needs to park pump truck in the appropriate location and resolves equipment malfunctions with abundant construction knowledge. He should turn into an eligible mechanist when mortar leakage of pump truck happens.

As a concrete pump operator, it is not only energy consuming, but also mentally challenging. Sometimes, pumping pipeline up to 18 pounds per feet needs to be uplifted by the operators. Sometimes, the operator must get up before 4 a.m. to prepare for pumping work. Therefore, concrete pump is a piece of work as well as professional skill.One of other important qualities is that the operator must be familiar with the concrete pump and mixer, including mechanical system, electric system, hydraulic system, and many other techniques.

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Label : concrete pump and mixer concrete pumping machine and concrete mixer

The Reasons to Select Compulsory Concrete Mixer

Tuesday 24th November 2015 2:26 AM

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The structural composition of compulsory concrete mixer can be divided into four parts: cylinder system, mixing system, drive system, and electronic control system.The cylinder system composed of cylinders and accessories has the function of carrying mixes and supporting components.

1. The cylinder is made into Ω shape with thick steel plates, which has perfect refraction power under the supporting of special designed and multi-functional frame. The supporting part is able to give cylinder enough rigidity, and to ensure parallelization of twin shafts and concentricity of single shaft.

2. Cylinder system is a combination of upper cover, observation door, inspection window, safety switch, and pipeline system, which has the function of air-tightness, charging, and observation.

3. Maintenance platform is a work platform formed by checkered plate and frame, which can be extended and retracted flexibly as needed.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer engineering concrete mixing plants, commodity concrete mixer,self-loading concrete mixer, stabilized soil mixing station, concrete batching plant and other concrete plants, welcome to order and visit our company!

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Label : self-loading concrete mixer compulsory concrete mixer

Development of mobile concrete mixer

Sunday 22nd November 2015 9:23 PM

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Concrete mixer firstly appeared in the form of self-falling concrete mixer. With the constantly increasing requirements of concrete, the compulsory concrete mixer came into being. Compulsory concrete mixer can be classified into vertical shaft type and horizontal shaft type. The two kinds of concrete mixers almost occupy the domestic market.

The self-falling concrete mixer can date back to 20th century and the drum concrete mixer driven by steam engines has started to emerge. In the following 50 years, the reverse discharging and tilting discharging of double cone concrete mixer and the drum concrete mixer were born in succession.

self loading concrete mixer

in the early 1950s, compulsory concrete mixer has developed and promoted rapidly. It is composed of turbo-prop concrete mixer and planetary concrete mixer. After 1970s, with the application of light-weight aggregate, the circular groove horizontal shaft compulsory concrete mixer which is also horizontal shaft concrete mixer appeared. It can be divided into two types: single shaft and twin-shaft, which has features of self-falling mixing and compulsory mixing.Compulsory concrete mixer is developed successfully in the early 1980s. But it develops quickly and has far surpassed many other models in the product specification and product quantity. The mixer is the core of compulsory concrete mixer and it is closely connected with mixing quality, production efficiency and using and maintenance costs. It is composed of double circular groove drum which is placed horizontally, two mixing shafts which rotate in the opposite direction and mixing blades.

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Material Conveying System of Batching Plant Equipment

Sunday 22nd November 2015 9:20 PM

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What does the material conveying system of large concrete batching plant equipment consist of?There are three parts of the material conveying system of concrete batching plant equipment(Aggregate conveying,Powder conveying,liquid conveying)

Aggregate conveying : The conveying of concrete batching plant equipment is composed of hopper conveying and belt conveying. Hopper conveying has features of small covering area and simple structure. Belt conveying has advantages of far conveying distance, high efficiency and low fault rate. And belt conveying is suitable for concrete batching plant equipment with aggregate temporary storage which can promote the production efficiency of concrete batching plant.

Powder conveying:The powder used to produce concrete includes cement, fly ash and mineral powder. The powder of concrete batching plant equipment is generally conveyed by screw conveyor and the large mixing building used pneumatic conveying and scraper blade conveying. The advantages of screw conveyor are simple structure, low cost and reliability.

liquid conveying. The liquid includes water and liquid mixture they are all conveyed by water pump in the haomei concrete batching plant.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer engineering concrete mixing plants, commodity concrete mixer, stabilized soil mixing station, concrete batching plant and other concrete plants, welcome to order and visit our company!

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Label : engineering concrete mixing plants concrete batching plant equipment

The different of Concrete Pump and Concrete Pump Truck

Sunday 22nd November 2015 9:19 PM

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In fact, the concrete pump and concrete pump truck are similar in nature.According to the structural style, concrete pump is composed of piston concrete pump, squeeze concrete pump and hydraulic diaphragm type concrete pump. According to the structure and application, it can be classified into trailer concrete pump, truck-mounted concrete pump and concrete pump truck. According the power type, it is made up of electric concrete pump and diesel engine concrete pump.Both of them can be used in the large delivery equipment and can be applied to deliver concrete in the large concrete engineering, such as building, high-speed road, overpass bridge, etc. Pump body and delivery pipe can constitute both the concrete pump and concreter pump truck.

concrete pump mixer

Concrete pump is composed of pump body and delivery pipe. Concrete pump is a machine which delivers the concrete continuously by pressure. Concrete pump is mainly used in the construction of building, bridge and tunnel. The concrete pump can be classified into gate valve concrete pump and S-valve concrete pump. But the concrete pump truck installs pump body on the underpan of truck. Then it is equipped with placing boom which can be stretched or flexed. At last, the concrete pump truck is produced.

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Label : concrete pump mixer trail concrete pump

Matters needing attention when cleaning the concrete mixer

Monday 16th November 2015 12:20 AM

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Before starting the concrete mixer, users should check all controllers whether they are in good condition. After shutting down the machine, add some water and stones into the mixing drum, clean the mixing drum for 10 to 15 minutes and then pour them out. If operators must enter into the mixing drum to clean it, operators should cut down the power supply and lock the switch box well.

JS500 Concrete Mixer

It is forbidden to use sledge hammer to eliminate the residual concrete on the mixing drum. Users can use chisel to clean the concrete.

In the cold season, the water in the water pump, water tank and water pipe should be released completely in order to prevent the frost damage when cleaning the concrete mixer with water.

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How to Correctly Operate JS500 Concrete Mixer

Monday 16th November 2015 12:19 AM

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Though JS500 concrete mixer can be used to mix various concrete, JS500 concrete mixer can not be used to mix some kinds of concrete. In order to prolong the service life of JS500 concrete mixer, users should operate the JS500 concrete mixer correctly.

Therefore, before purchasing the JS500 concrete, users should know clearly about the concrete they need and the specific parameter of JS500 concrete mixer. Then users should check the water pump to ensure the sufficient water in the water pump every time when using the concrete mixer. It is necessary to do daily cleaning to keep the machine clean. Regular check and maintenance can make users find faults and deal with them in time. Users should not keep the concrete mixer working all day long and proper rest can prolong the service life of concrete mixer.

JS500 concrete mixer is a mixer which has the characteristics of good production performance and high production efficiency. Not only JS500 concrete mixer can work independently, but also it can be adopted as the mixer with the concrete batching machine and combine into simple concrete mixing plant. So, JS500 concrete mixer is widely recognized and accepted by customers

JS500 concrete mixer is a machine with higher automation, so it is not very difficult to operate it. Only by un-overloading running, daily cleaning, regular check and regular maintenance, can JS500 concrete mixer provide better service for you.

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Five Steps of the Safe Operation of small concrete mixer

Monday 16th November 2015 12:15 AM

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1. Press the mixing button of concrete mixer and the mixing shaft will run smoothly.

2. Add some aggregate, cement and sand into the hopper. The right charging sequence is stone, cement and sand.

3. Start the lifting electric motor of concrete mixer and make the feeding hopper rise to the top of orbit. After finishing discharging into the mixing drum, make the hopper descend to the lowest point of the orbit immediately which can be convenient to the next recycle feeding.

4. Press the water supply button and the water pump will begin to work and add appropriate water into the mixing drum.

5. After mixing 25 seconds to 30 seconds, press the tip-over turbo reducer button. Driven by turbo reducer, the mixing drum will rotate a certain angle along the mixing shaft and materials will be discharged along the discharging outlet.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer engineering concrete mixing plants, commodity concrete mixer, stabilized soil mixing station, concrete batching plant and other concrete plants, welcome to order and visit our company!

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Label : commodity concrete mixer

How to Protect Haomei Diesel Concrete Mixer

Tuesday 10th November 2015 2:13 AM

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Diesel concrete mixer is the concrete mixer what we often called JZR350 diesel drum concrete mixer. Because diesel concrete mixer is not the same with the general drum concrete mixer, there are special methods of protecting the diesel concrete mixer.

diesel engine concrete mixer

As the diesel concrete mixer can be used in areas without electricity, the diesel engine plays an important role in the diesel concrete mixer.The wired parts of diesel engine should be checked regularly.After using the diesel concrete mixer, the materials remaining in the mixing drum must be eliminated completely.Regularly check the mixing blades whether they are damaged.When using the JZR diesel concrete mixer, it should be placed in the ventilated place to avoid the heating of diesel engine. It is forbidden to touch the diesel concrete mixer in the operation of diesel concrete mixer.Users had better avoid the collision of diesel concrete mixer.Check the belt on the diesel concrete mixer whether it is loose or damaged.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer diesel engine concrete mixer, harga concrete mixer, electric portable concrete mixer, concrete batching plant and other concrete plants, welcome to order and visit our company!

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Label : diesel engine concrete mixer diesel engine concrete mixer

About The Hydraulic System of Concrete Pump

Tuesday 10th November 2015 2:12 AM

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The operation of hydraulic system should be reliable and smooth, and there should not be abnormal noise. When the hydraulic system is working under the rated flow and 50% of the rated pressure. The ratio between the impact value of reserving pressure and 50% of the rated pressure should be bigger than 0.5.The design and installation of hydraulic system should conform to requirements. And the setting pressure of every relief valve should be not bigger than 110% of the rated pressure of the hydraulic system.The precision of the oil absorption filter of oil pump should meet the demands of the use of oil consumption. In the continuous working condition, the vacuum degree of oil absorption should not exceed -0.02MPA, and the filter precision of oil line system should be not lower than 20um.The pollution grade of the solid particle in the hydraulic oil of hydraulic system can be graded according to some standards.

The inner wall of oil tank should be dealt with acid cleaning and phosphatizing and there must be no dirt and oil dust. The indication of oil level should be clear and accurate. The oil level should be in the three fourths of oil level indicator.During the normal operation, the highest working temperature of hydraulic oil in the oil tank should not exceed 80℃.The energy accumulator should be fixed and reliable.There must be no oil leakage of hydraulic elements and pipelines in hydraulic system.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer concrete pump mixer truck, concrete pumping machine and concrete mixer, concrete pump and mixer, concrete pump and mixer, welcome to order and visit our company!

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Label : concrete pump mixer truck cocrete mixer pump .concrete pump

Requirements of JZC350 Concrete Mixer on Quality

Tuesday 10th November 2015 1:49 AM

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What requirements JZC350 concrete mixer should meet to become a qualified JZC350 concrete mixer?

First,the sealing performance of JZC350 concrete mixer, not only the water supply system should be sealing, the pipelines, joints and valves should not have water leakage. The suction valve should be well sealed. After the water pump stops working for 30 minutes, it can still work properly.

Second,the feeding mechanism of JZC350 concrete mixer, a qualified feeding mechanism should be safe and reliable. Besides, when the concrete mixer overloads by 10 percent, the concrete mixer can brake safely in any place and the gliding speed of hopper should not exceed 10mm per second. As for the centralized driving feeding mechanism, the top dead center should be equipped with lifting safety device. As for the respective driving feeding mechanism, both the top and the lower dead center should be equipped with automatic stop device. The hopper should run steadily.

Haomei Machinery Equipment Co.,Ltd offers a variety of concrete machineries, We mainly offer diesel engine concrete mixer, harga concrete mixer, electric portable concrete mixer, concrete batching plant and other concrete plants, welcome to order and visit our company!

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Maintenance and use of drum for concrete mixers

Friday 6th November 2015 12:31 AM

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Check the oil level of the gear box of drum for concrete mixers regularly. And add and change the new lubricant oil for friction drum concrete mixer.

Check the wear condition of the jockey pulley of drum for concrete mixers at regular intervals. If necessary, change the new jockey pulley.

During the comprehensive examination, maintain the gear of the gear box and every bearing for friction drum concrete mixer. If necessary, change them.

Haomei is a leader in China’s construction machinery industry. Haomei is capable of providing customers with construction machinery equipment.welcome to order and visit our company!

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Label : drum for concrete mixers concrete mixer machine drum for concrete mixers

Operating Principles of drum for concrete mixers

Friday 6th November 2015 12:28 AM

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Operating Principles of drum for concrete mixers: the mixing drum transits by the friction of the drive of rubber tug, so the friction drum concrete mixer produces small noise and is suitable for using in the civil engineering construction. However, the drum for concrete mixers adopts the hoisting way to feed materials, so when the charging hopper is rising, it is forbidden to work or walk under the hopper; lay some straw bags under the foundation pit to be used as the pillow of hopper. When the concrete mixer lands and approaches the ground, stop for a while and land the concrete mixer to the bottom to avoid the damage of hopper because of the high landing speed; when the foundation pit needs cleaning or operators check under the hopper, keep in contact with operators of drum for concrete mixers and start cleaning and checking after locking the hopper tightly with chains.

Haomei is a leader in China’s construction machinery industry. Haomei is capable of providing customers with construction machinery equipment.welcome to order and visit our company!

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The Electric System of Concrete batching Plant

Wednesday 4th November 2015 12:59 AM

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When the concrete baching plant is operating, it is necessary to ensure that the electric system can catchup with the working process, so concrete baching plant has high requirement of the performance of electric system. What are these requirements of electric system in detail?

First,The electric system should realize easy input, convenient operation and the accurate adjustment and modification of the setting point of every kind of material. Electric system must possess perfect self-locking and interlock function, which can the reliable and accurate operation of the electric system. As for the commonly seen faults, electric system should be provided with faults detection and alarming function.

Sometimes, concrete mixing plant should be operated in night, so there must be a headlamp. Because the headlamp is a necessary part of electric system, the electric system should ensure that the headlamp should be controlled flexibly.When the weighing system of concrete mixing plant sets the zero output, the electric system can remove the tare and amend the gap. As for the single measurement of the single king of material, electric system should have a function of deduction and supplement, which can effectively control the measuring precision. Besides, the electric system should have lighting alarming device.

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Label : concrete batching plant concrete mixing plant

How to Distinguish the Quality of Concrete batching Plant

Wednesday 4th November 2015 12:46 AM

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Though concrete mixing plant is commonly used in the infrastructure construction, most customers only know about the application of Concrete batching Plant and know little about how to distinguish the quality of concrete mixing plant, let alone to check the quality of Concrete batching Plant they buy. Today, Haomei machinery gives customers some advices about ways of distinguishing the quality of concrete mixing plant.

The operation of transmission system should be flexible and there must be no strange sound in it.The installation of matched circuit should be reasonable and the equipment installation should be correct. If the concrete mixer is self falling mixing drum, the jumpiness range of discharging mouth should not exceed 1% of the diameter of the charging mouth. Check the steel quality of the screen mesh of vibrating screen on the concrete mixer, the reasonable size of screen mesh and sieve pore, and the installation accuracy of screen mesh.The belt conveyor, hopper lifter, cantilever dragline and so on should transmit smoothly, operate flexibly, brake reliably and have no abnormal noise and chain blocking.The quality of cement silo should be qualified.The safety valve should have no air leakage phenomenon.The inlet and outlet of measuring hopper should smooth and there should be no accumulated material and spilth phenomenon.The examination of measuring system also attaches great importance and users should check the sensitivity and accuracy of measuring system.Pay attention to the increasing temperature of reducer and it should conform to the temperature on the instruction book.

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Label : concrete mixing plant Concrete mixer

How to the Classify Commonly Used Concrete Mixer

Wednesday 4th November 2015 12:38 AM

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According to mixing principle, commonly used concrete mixer can be classified into self-falling concrete mixer and compulsory concrete mixer.

Structure of self falling concrete mixer: the mixing drum of self falling concrete mixer is placed according to the principle of vertical mixing. With the rotation of mixing drum, the concrete mixture is turned and mixed in the mixing drum through free falling, which can realize the aim of mixing. Self falling concrete mixer is mainly used to mix plastic concrete and low fluidity concrete. The barrel and mixing blades wear less and are easy to clean, but they consume more power and have low efficiency. Generally, the mixing time of self falling concrete mixer is 90-120s/dish. Because the self falling concrete mixer has great abrasion to concrete aggregate and can affect the quality of concrete, it is gradually replaced by compulsory concrete mixer day by day.

Structure of compulsory concrete mixer: there are several groups of mixing blades in the mixing drum and mixing blades rotate around vertical shaft and horizontal shaft to mix materials compulsorily until the materials are mixed evenly. This kind of concrete mixer has strong mixing effect, which is suitable for mixing dry hard concrete and light aggregate concrete, and also it can be used to mix low fluidity concrete. Compulsory concrete mixer has advantages of good mixing quality, quick mixing speed, safe and simple operation, etc. However, the machine parts wear quickly and compulsory concrete mixer is often used the high strength alloy steel or other wear resistance materials as lining, which is mainly applied to concrete batching plant or precast factories.

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Label : commonly used concrete mixer compulsory concrete mixer

Operating Procedure of Haomei Twin Shaft Concrete Mixer

Wednesday 4th November 2015 12:26 AM

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Before starting the twin shaft concrete mixer, check whether there is bruised phenomenon between the rotating pars and the mixing drum firstly. If so, adjust it in time.

Clean the sundries in the mixing drum.After the mixing drum is limited, operators can start the concrete mixer.The rotating direction of mixing shaft should be consistent with the mark of cylinder face.Eliminate the metal and other sundries in the stored materials.

Adjust the timing of concrete mixer according to mixing time and the adjustment should be done when cutting down power supply.Press the rising button and the mixing spade will rotate which is driven by main shaft.Shut down the concrete mixer automatically when it arrives the setting time.

When discharging materials, shut down the concrete mixer firstly. Open the pin, move the handle to make the charging barrel rotate to a certain place, lock the pin to locate the rotating main shaft and discharge the mixture out of the charging barrel.

After discharging mixture, reset the barrel manually and locate the pin of the mixing drum.When cleaning the mixing drum, pour water into mixing drum and clean it by the rotation of main shaft. Or clean the mixing drum with dry sand.

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How to Reduce the Power Consumption of Concrete Mixer

Wednesday 4th November 2015 12:20 AM

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First,we neeed Reduce the frictional resistance of every component. Carry out the mechanical technique maintenance regulations strictly and lubricate it according to rules, which can reduce the resistance loss of operating mechanism, such as the frictional resistance between drum tyres and the surface of running pulley, the frictional resistance between the supporting axle of running pulley and shaft sleeve and the resistance of hoisting hopper. In this way, the mechanical efficiency improves.

second,Reduce the mechanical invalid load. The reduction of mechanical invalid load can be realized by taking measures from the processes of charging materials, mixing and discharging materials: put down the charging hopper timely after discharging, which can reduce the energy consumption of vibration. Master the mixing time correctly and discharge materials at the right moment under the condition of ensuring the concrete quality, which can reduce the power consumption. Discharge materials thoroughly. If sticky materials in the mixing drum are too many, eliminate them. The excessive remaining materials not only affect the productivity, but also increase the power consumption.

in the end,Shorten the time of mechanical test run. Except for starting the machine according to operating procedures and the test run time of routine maintenance, in the process of construction, shorten the time of mechanical test run as mush as possible. As for the electric concrete mixer, if the test run time exceeds 1 minute which is caused by untimely feeding, and the concrete transporting and pouring, shut down the machine without load.

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Label : electric concrete mixer

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