The Control Principle of Drum Mixer In Self loading Concrete Mixer

As an efficient concrete production equipment, self loading concrete mixer trucks play an important role in the modern construction industry. The mixing drum, as the core component, is responsible for the uniform mixing of concrete. Operators can control the mixing drum inside the cab by manipulating the control lever or buttons, which relies on advanced control principles and technology.

The control principle of the mixing drum of self loading mixer truck is mainly based on the collaborative work of the hydraulic system, electrical control system, and mechanical transmission system. When the operator issues a command through a joystick or control button, the command is first received and resolved by the electrical control system. The electrical control system converts operating instructions into corresponding electrical signals and transmits them to the control valves in the hydraulic system through circuits.

After receiving an electrical signal, the control valve in the hydraulic system will adjust the opening and direction of the valve according to instructions, thereby controlling the flow direction and flow of hydraulic oil. Hydraulic oil is transmitted through high-pressure pipelines to the hydraulic motor of the mixing drum, providing power to the motor. The rotation direction and speed of the hydraulic motor are precisely controlled by the control valve, thereby achieving forward and reverse control of the mixing drum.

The mechanical transmission system is responsible for transmitting the power of the hydraulic motor to the mixing drum. Usually, hydraulic motors are connected to the mixing drum through a reducer, which can reduce the motor speed and increase torque to meet the working requirements of the mixing drum. In this way, when the hydraulic motor rotates, the mixing drum will also rotate accordingly.

In addition, to ensure the control accuracy and stability of the mixing drum, the control system is also equipped with sensors and feedback mechanisms. Sensors can monitor the speed and position of the mixing drum in real time, and feedback this information to the electrical control system. The electrical control system compares feedback information with operating instructions, adjusts the status of the control valve in a timely manner, and ensures accurate control of the mixing drum according to requirements.

In summary, the control principle of the mixing drum of the self feeding concrete mixer truck is achieved through the collaborative work of the hydraulic system, electrical control system, and mechanical transmission system. The operator only needs to issue instructions through the control lever or button in the cab, and the control system can accurately control the forward and reverse rotation of the mixing drum, thereby meeting the needs of concrete mixing. This control method not only improves work efficiency, but also reduces operational difficulty, providing strong support for the development of the modern construction industry.

Driving And Control Of Concrete Mixer Trucks

The control lever and buttons in the cab of the concrete mixer truck are important components of the concrete mixer truck, which are used to control various actions and functions of the concrete mixer truck. The following are the functions and operation methods of various control levers and buttons in the cab of the mixer truck.

Joystick

  • Steering wheel

Used to control the driving direction of the concrete mixer truck. By turning the steering wheel, the vehicle’s forward, backward, and turning movements can be controlled.

  • Acceleration Lever

sed to control the driving speed of the concrete self loading mixer truck. Pushing the acceleration lever forward can accelerate the vehicle; Pulling the accelerator lever backwards can slow down the vehicle.

  • Brake Lever

Used to control the brake system of the concrete self loading mixer truck. Pushing the brake lever forward can activate the braking system, causing the vehicle to slow down or stop; Pulling the brake lever backwards can release the braking status and allow the vehicle to continue driving.

Control Buttons

  • Power switch

Used to control the power switch of the concrete self loading mixer truck. Pressing the power switch can start or stop the concrete self loading mixer truck.

  • Mixing control button

used to control the mixing system of the concrete self loading mixer truck. Pressing the mixing control button can start or stop the mixing system, allowing the concrete to start or stop mixing.

Feeding control button

Used to control the feeding system of the concrete self feeding mixer truck. Pressing the feeding control button can start or stop the feeding system, allowing the concrete to start or stop feeding.

Unloading control button

Used to control the unloading system of the concrete self loading mixer truck. Pressing the unloading control button can start or stop the unloading system, allowing the concrete to start or stop unloading.

Wiper control button

Used to control the wiper of the concrete self loading mixer truck. By pressing the wiper control button, the wipers can be turned on or off to clean the windshield of the driver’s cabin.

Horn control button

Used to control the horn of the concrete self loading mixer truck. Pressing the horn control button can emit a horn sound, which is used to warn or alert surrounding pedestrians or vehicles to ensure safety.

The above is the function and operation method of each control lever and button in the cab of themixer truck. During the operation, it is necessary to ensure compliance with relevant safety regulations and operating procedures to ensure the safety of personnel and equipment (lutonmachinery.com).

The following is the actual operation method of the control lever and button of the concrete mixer truck.

  • Start the mixer truck

First, check the surrounding environment of the vehicle to confirm that there are no safety hazards. Then, enter the cab, adjust the seat to the appropriate position, and fasten the seat belt. Next, turn on the power switch and check if all functions of the dashboard are normal. Finally, press the clutch pedal all the way down and shift to start the mixer truck.

  • Driving truck

Control the direction of vehicle travel by operating the steering wheel. Control the vehicle’s driving speed by operating the accelerator and brake levers as needed. During driving, pay attention to observing the road conditions and surrounding environment to ensure safe driving.

  • Mixing concrete

After arriving at the construction site, park the mixer truck on a flat surface. Then, add an appropriate amount of water and other raw materials as needed. Next, switch the control button to the mixing mode and start the mixing system. During the mixing process, the mixing quality of concrete should be regularly checked to ensure compliance with requirements.

  • Loading and unloading concrete

After the concrete is mixed, switch the control button to the loading mode and start the loading system. By operating the joystick, control the bucket to load concrete into a transport vehicle or other container. After the loading is completed, switch the control button to the unloading mode and start the unloading system. By operating the joystick, control the bucket to unload the concrete to the designated position.

  • Stop operating the concrete self loading mixer truck

After completing the mixing, loading, and unloading operations, switch the control button to stop mode, and turn off the mixing system, loading system, and unloading system. Then, press the clutch pedal all the way down and shift to neutral. Finally, turn off the power switch and leave the cab.

It should be noted that when operating the concrete self loading mixer truck, relevant safety regulations and operating procedures must be strictly followed. At the same time, regular inspections and maintenance should be carried out on vehicles to ensure their normal operation and extend their service life. In addition, operators should receive professional training and possess relevant qualifications and experience to ensure the safe and efficient operation of concrete self loading mixer trucks.

Maintenance Points of Asphalt Distributor

Asphalt distributor is used to distribute permeable oil, waterproof layer and adhesive layer of asphalt pavement of high grade highway. It can also be used for the construction of county and township highways with stratified paving technology. It is composed of automobile chassis, asphalt tank, asphalt pumping and spraying system, heat conduction oil heating system, hydraulic system, combustion system, control system, pneumatic system and operating platform.

Knowing the correct operation and maintenance of asphalt distributor can not only extend the service life of the equipment, reduce the cost of equipment maintenance, but also ensure the smooth progress of the construction project.

So what problems should be paid attention to when the asphalt distributor works?

Before use, please check whether the position of each valve is accurate and do the preparatory work before work. After starting the motor of the asphalt distributor, check the four thermal oil valves and the pressure gauge, start the engine after everything is normal, and the force extractor starts to work. Test asphalt pump, cycle for 5 minutes, pump head shell, hot hand, then slowly close the valve of the heat transfer pump. If the heating is insufficient, the pump will not turn or there is a noise phenomenon, you need to open the valve to continue heating the asphalt pump until it can operate normally.

During the working process, the asphalt liquid must ensure the working temperature of 160~180 ° C, and can not be filled too full (during the injection of asphalt liquid, pay attention to the liquid level pointer, and check the tank mouth at any time). After the asphalt liquid is injected, the refueling inlet must be closed tightly to avoid the overflow of the asphalt liquid during transportation.

During use, asphalt may not be able to be pumped in, and it is necessary to check whether the interface of the asphalt suction pipe is leaking. When the asphalt pump and pipeline are blocked by solidified asphalt, you can use a blowtorch to bake, do not force the pump to turn. When baking, attention should be paid to avoid directly baking ball valves and rubber parts.

Keep the car at a low speed while spraying asphalt. Do not step on the accelerator, otherwise it may cause damage to the clutch, asphalt pump and other components. When spreading asphalt 6m wide, always pay attention to the obstacles on both sides to prevent collision with the distribution pipe. At the same time, asphalt should always maintain a large circulation

State until the end of the spreading work.

After the operation is finished every day, if there is any remaining asphalt, it must be put back into the asphalt pool, otherwise it will not work next time.

In addition, the emulsifying machine must also pay attention to daily maintenance:

1. Emulsifying machine and conveying pump and other motors, agitators, valves should be daily maintenance.

2. After the end of the work every day, the emulsifying machine should be cleaned.

3. The speed pump used to control the flow should be regularly tested for accuracy, and timely adjustment and maintenance. Asphalt emulsifying machine should regularly check its stator and rotor matching gap, when can not reach the minimum gap specified by the machine should consider replacing the stator and rotor.

4. If the equipment is disabled for a long time, the liquid in the tank and pipeline should be emptied (emulsifier aqueous solution should not be stored for a long time), each hole cover should be covered tightly, keep clean, and each moving part should be filled with lubricating oil. The rust in the tank should be removed when it is used for the first time and re-used after a long time, and the water filter should be cleaned regularly.

5. Regularly check whether the terminals in the electric control cabinet are loose, whether the wires are worn during shipment, eliminate dust, and avoid damage to the parts. Frequency conversion governor is a precision instrument, please refer to the operation manual for specific use and maintenance.

6. Emulsifier aqueous solution heating mixing tank there is a heat transfer oil coil, into the water tank should be injected cold water should first turn off the heat transfer oil switch, add the required water and then turn on the switch heating. Pouring cold water directly into the high temperature heat conduction oil pipeline is easy to crack the welding joint.

More asphalt mixing plant, please clink web of ltasphaltplant.com.

Key Characteristics Of The Mining Concrete Transport Pump

Mineral concrete conveying pump is a high-grade ingenious product collectively developed and created together with clinical research systems for lots of inconvenient conditions of mine concrete building and construction, combined with the long-term layout as well as manufacturing experience of concrete pump. It has actually completely reworded the background that the mining concrete pump can not be carried out into the well, as well as changed the typical procedure setting of manual multi-layer reverse transport for below ground concrete construction.

Mine concrete conveying pump is not just utilized for underground concrete building and construction. It can additionally be made use of for the concrete construction of railway as well as freeway tunnels, bridges ans culverts, water as well as power, mines, skyscrapers and national protection jobs.

Measures To Avoid The Clog Of Pumping Concrete

When setting up and also designing pipes, stay clear of bending as high as feasible. To lower the resistance of pumping concrete as well as protect against obstruction.

To make certain the continuity of pumping concrete operation, to ensure the high quality of concrete putting. The interval time throughout the procedure ought to not be too lengthy to stop the blockage.

If the interval is long for one reason or another, we should start the pump or opposite and also onward pump a number of times each time to stop obstruction.

Pumping concrete needs to be strictly according to the pumping concrete arrangements of the layout mix ratio, strictly control the collapse degree, the option of accumulation fragment dimension should satisfy the needs, typically need to not be above the communicating pipe diameter.

Before pumping concrete, send out mortar first, send out concrete later to avoid obstruction.

At present, the mine underground wall surface, pump room and also other concrete building and construction, generally use mechanical grouting pump building and construction or manual pouring construction.

The main flaws of the construction with mechanical grouting pump are: intricate structure, simple to damage, inadequate building and construction quality and also reduced effectiveness;

The issues of putting concrete with manual building: require a multitude of shelves, high labor strength, lengthy building duration, inadequate building high quality, low performance;

Currently, the concrete pump used for building is not appropriate for the slim building and construction area under the mine because of its large volume, intricate framework and high cost.

According to this situation, LUTON GROUP created a special underground mining concrete pump, which is characterized by: tiny volume, simple structure, full hydraulic operation, easy to use, and high efficiency, rapid building and construction, top quality, which is really ideal for the concrete building and construction of the slim area under the mine.

The major characteristics of the mining concrete pump are complies with:

  1. With underground explosion-proof function, in addition to an explosion-proof motor, the entire equipment uses automatic hydraulic components, nothing else electrical appliances.
  2. Has actually passed the coal safety mark qualification, and obtained the patent.
  3. Little quantity, lightweight, upright crane can into the plate mouth, horizontal can into the cage.
  4. Underground handling is convenient, according to the customer requirements, the detachable scale is 600 or 900mm wheel set, practical handling along the track.

LUTON team specializes in the advancement, manufacturing and also sales of additional structural column pump, concrete sharing pump as well as other mechanical tools, the business has a strong technical pressure. Processing tools is total, testing ways are total, the items are through the microcomputer optimization layout, the quality can reach the residential innovative level, the business depends on solid stamina, reliable item top quality, perfect solution warranty system items marketing more than 60 countries and regions around the world, won the customer’s appreciation.

Ready Mix Water Resistant Plaster

K95 readyplast is a ready to mix,dry cementitious product. It contains blended cements, graded sands and additives to improve consistency and work ability.

Uses:

Smooth under layer materials for exterior and interior concrete masonry or plaster based substrates.

Interior or exterior final finishing plasters for walls and ceilings or concrete and block surfaces.

Advantages:

  • Ease of use, requires only the addition of clean cold water.
  • Durable finish.
  • Better coverage in plaster area.
  • Excellent bonding, less rebound hence reduces the wastages during plastering.
  • Excellent permeability resistant.
  • Increase plastic life of mortar and reduces drying shrinkage cracks.
  • Improved labor productivity hence reduces the cost so it is economical.
  • Paintable. Once hardened.

Application instructions:

The surface should be clean, free from standing water and all contaminants such as oil, grease, laitance, paint, or corrosion products. Any contamination should be removed by mechanical means to produce a sound substrate. The surface should be washed with clean water to remove all dust. It should be wetted prior to application of K95 REDAYPLAST. The product should not be applied to surfaces which are exposed to running water.

Mixing:

K95 KEADYPLAST complete bags should be mixed using a mechanically powered grout mixer, each bag requires 6 to 7 ltr of clean cold water. Ensure that, the mixer is damp inside but free of standing water before commencing mixing, add pre-measured quantity of clean cold water.

Application:

Apply the mixed K95 READYPLAST by hand using a steel trowel. Use a float to give a smooth and uniform thickness and level surface. Mixed K95 READYPLAST after adding water, should be used within 45 minutes.

Curing:

Water curing is recommended after 16 hours and to be continued for at least 7 days. Alternatively curing by KCURE curing compound is recommended.

Cleaning:

Tools contaminated with K95 READYPLAST can be cleaned using clean water.

Hardened grout can only be removed by mechanical means.

Health& safety:

K95 READYPLAST is non-hazardous. It should not be swallouwed or allowed to come into contact with skin or eyes. Suitable protective goggles and gloves should be worn. In the case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If swallowed, seek medical attention immediately, do not induce vomiting.

Packing& coverage:

K95 READYPLAST is available in 40kg. Bags.40kg. Bag of bag K95 READYPLAST will cover 30-32 sq.ft in 15-16mm thickness the coverage depends upon the substrate.

Storage:

Nine months storage life when stored in original unopened bags at between 5 and 35℃ in a dry and shaded place.