How to Maintain Concrete Mixing Plants in Winter

How to Maintain Concrete Mixing Plants in Winter

2024-08-15

When winter comes, the weather is getting colder and colder, but the use of concrete mixing station will not stop. However, when the temperature is low in winter, attention should be paid to the maintenance of concrete mixing station. So how should it be maintained in winter? 1.After the concrete mixing station is shut down, it is necessary to discharge all the liquid in the water tank from the water pump, water tank and admixture as soon as possible, so as to prevent the water from freezing due to the damage of the residual machinery and pipelines in the water tank, or the startup can not be started normally. 2.Concrete mixer to stop working for more than 4 hours should be compressed water and air bag water row, prevent water condensation after compression. 3.Diagonal belt if there is a sprinkler or belt conveyor idling should allow a period of time after the end of production, the cleaning belt scraped to the surface of the water, prolong the service life of the belt conveyor, vertical tension weight should be reduced and...

The Advantages of Hopper Type Concrete Mixing Station

The Advantages of Hopper Type Concrete Mixing Station

2024-08-14

Hopper type concrete mixing station is a kind of building material manufacturing equipment which integrates material weighing, conveying, mixing and control system. It is mainly composed of main mixer, material weighing system, material conveying system (especially hopper), material storage system and control system. These systems work together to accurately weigh, transport, mix and stir cement, aggregate (such as sand, stone, etc.), water and other materials, and finally make concrete that meets the requirements. Skip loading concrete mixing plant has the following advantages: I. Small Footprint and Easy Installation 1. Hopper concrete mixing stations typically adopt a modular design, making their footprint relatively small and the installation process more convenient. This design not only saves space but also enhances the mixing station's ability to adapt to various complex environments, allowing for rapid deployment. 2. The main body of the mixing station occupies an area of less than 200 square meters at a minimum, which helps project parties fully conserve land resources and use the station even in extremely compact environments. 3. Installation is quick and convenient. With foundational work completed, a...

The Difference Between Integral Cement Silos And Sheet Cement Silos

The Difference Between Integral Cement Silos And Sheet Cement Silos

2024-08-13

Cement silo is a kind of closed silo for storing materials, which can be divided into bulk cement silo and sheet cement silo. Both of them are containers for storing bulk materials, and both of them play an important role in both warehousing and engineering construction. As a manufacturer specializing in the production of mixing station equipment for more than 20 years, the auxiliary machinery introduces the differences and advantages between flaky cement silo and bulk cement silo with years of accumulated experience. 1. The Device The characteristic of bulk cement silo is that it can be directly transported to the construction site and then welded. However, the sheet cement silo is different. The sheet cement silo is not a complete device. Before use, it is necessary to assemble the sheet cement silo, and then the installed sheet cement silo can be welded on the foundation. 2. Transportation The functions of bulk cement silo and sheet cement silo are complementary, and the transportation of bulk cement silo is relatively troublesome, but the bulk cement silo is more favorable in price...

How to Do Daily Maintenance of Inclined Belt and Flat Belt in Belt Concrete Mixing Plant

How to Do Daily Maintenance of Inclined Belt and Flat Belt in Belt Concrete Mixing Plant

2024-08-08

In belt concrete mixing stations, flat belts and inclined belts (hereinafter collectively referred to as belts) are used to transport aggregates during work, which greatly improves the efficiency of the entire mixing station's automated production process. Once a problem occurs, the entire production task must be interrupted. Therefore, it is very important to master some common belt fault handling methods and daily belt maintenance. Let's talk about this topic together today. In general, the concrete batching plant belts are divided into flat belts and inclined belts. The flat belt is under the batching bin and is responsible for transporting raw materials such as aggregates to the inclined belt, while the inclined belt is responsible for transporting raw materials to the middle bin of the mixing host. The working methods of the two are also the same, so let's explain the common faults of the inclined belt in detail below. I. Common Faults 1. Belt Deviation Belt deviation is the most common fault phenomenon. The reason for its occurrence is that the belt is subjected to unbalanced force in the width...

The Difference Between Bucket-lifting and Inclined Belt Conveyor in Concrete Mixing Plants

The Difference Between Bucket-lifting and Inclined Belt Conveyor in Concrete Mixing Plants

2024-08-08

Generally speaking, the aggregate conveying of concrete mixing stations often adopts belt conveyors or bucket lifting. These two methods have their own characteristics. This article explains the difference between the two in detail. I. Bucket-lifting 1. Working principle The bucket-lifting uses a brake winch and is pulled through a pulley block and a wire rope to achieve the purpose of lifting the bucket. In large and medium-sized mixing stations, double wire rope transmission is often adopted; in small mixing stations, most of them directly adopt a suspended single rope transmission or a single rope transmission guided by a pulley installed on the bucket. 2. Features The advantages of bucket lifting are small footprint and simple structure, which are suitable for narrow construction sites. Schematic diagram of bucket-lifting and inclined belt conveyor: II. Inclined belt type 1. Working principle The belts are connected into a closed loop, and they are tightened with a tensioning device. Driven by the motor, the friction between the conveyor belt and the drive roller makes the conveyor belt run continuously, thereby achieving the purpose of transporting...

How to Deal with the Electrical Control System Failure of Concrete Mixing Station

How to Deal with the Electrical Control System Failure of Concrete Mixing Station

2024-08-07

In the long-term daily production and operation of concrete mixing station, it is inevitable that there will be failures in mechanical equipment and control system. Today, the auxiliary mechanical mixing station mainly tells you about the possible faults of the electrical control system of the mixing station and the countermeasures! 1. PLC cannot communicate Due to poor contact of communication line or communication network connector, or damage of communication and expansion module, the PLC electronic system fails. Therefore, the communication line, communication connector and communication expansion module can be inspected and replaced. 2. The digital display meter is garbled or the power supply is out of phase When the digital display meter is garbled, it can be checked step by step and then replaced; The lack of phase of external power supply is due to the burnt contact of contactor or circuit breaker, the current of circuit breaker is not set properly or the burnt contact of contactor causes the lack of phase; Elimination method: the power supply can be checked and updated. If the circuit breaker is found to...

Common Failures of Concrete Mixing Station-Reversing Valve Failure & Component Failure

Common Failures of Concrete Mixing Station-Reversing Valve Failure & Component Failure

2024-08-06

1. Reversing valve failure The faults of the reversing valve include: the valve can not be reversed or the reversing action is slow, the gas leaks, and the electromagnetic pilot valve is faulty. (1) The reversing valve can't reverse or the reversing action is slow, which is generally caused by poor lubrication, the spring being stuck or damaged, oil pollution or impurities stuck in the sliding part, etc. In this regard, we should first check whether the oil mist device works normally; Whether the viscosity of lubricating oil is appropriate. If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring and reversing valve. (2) After long-term use, the reversing valve is prone to wear of the sealing ring of the valve core and damage of the valve stem and valve seat, resulting in gas leakage in the valve, slow action of the valve or abnormal reversing. At this time, the sealing ring, valve stem and valve seat should be replaced, or the reversing valve should be replaced. (3) If the inlet and...

Cylinder Failure-One of the Common Faults of Concrete Mixing Station

Cylinder Failure-One of the Common Faults of Concrete Mixing Station

2024-08-06

Due to improper assembly and long-term use of the cylinder, the pneumatic actuator (cylinder) is prone to internal and external leakage, insufficient output force and unstable action, poor cushioning effect, piston rod and cylinder head damage and other failures. (1) Internal and external leakage of the cylinder is generally caused by eccentric installation of the piston rod, insufficient supply of lubricating oil, abrasion or damage of the sealing ring and sealing ring, impurities in the cylinder and scars on the piston rod. Therefore, when the cylinder leaks internally and externally, the center of the piston rod should be readjusted to ensure the coaxiality of the piston rod and the cylinder. Always check whether the oil mist sprayer works reliably to ensure good lubrication of the actuator; When the sealing ring and sealing ring are worn or damaged, they must be replaced in time; If there are impurities in the cylinder, they should be removed in time; When there are scars on the piston rod, replace it with a new one. (2) The output force of the cylinder is insufficient and...

Air Source Fault-One of the Common Faults of Concrete Mixing Station

Air Source Fault-One of the Common Faults of Concrete Mixing Station

2024-08-06

(1) The faults of air compressor include: damage of check valve, serious wear of piston ring, damage of air inlet valve and blockage of air filter, etc. If you want to judge whether the check valve is damaged, just turn off the power supply after the air compressor stops automatically for more than ten seconds, and turn the big belt wheel by hand. If you can rotate it easily for one week, it shows that the check valve is not damaged. On the contrary, the check valve has been damaged; In addition, it can also be judged from the exhaust situation of the exhaust port under the automatic pressure switch. Generally, after the air compressor stops automatically, it should stop exhausting after about ten seconds. If it stops exhausting until the air compressor starts again, it means that the check valve has been damaged and needs to be replaced. When the pressure of the air compressor rises slowly and is accompanied by oil string phenomenon, it shows that the piston ring of the air compressor has been seriously worn and...

How to Transport Concrete with Transport Tankers After Production

How to Transport Concrete with Transport Tankers After Production

2024-08-06

1. The speed of service road: 24 km/ h, taking the round-trip transportation distance of 24 km as an example. 2. Loading time of concrete mixer truck: 1/6 hour/car for HZS120 and 7/30 hour for HZS90. 3. Unloading time of concrete mixer truck: 5 minutes. 4. Every time one truck of concrete is delivered, it takes 1.25 hours for HZS120 and 1.32 hours for HZS90. 5. The number of vehicles to be transported within 6 hours: HZS120 6×1/1.25≈5 (vehicles) and HZS90 6×1/1.32≈4 (vehicles). 6. 320 m3 of beam pouring concrete is completed within 6 hours, and the number of vehicles to be transported is 320×1/6.5≈50 (vehicles). 7. The allocation of concrete mixing truck should be considered. Due to the service road transportation, there should be a certain empty tank rate. HZS120 mixer station, with a host capacity of 2m3, should be equipped with a 9 m3 concrete mixer truck for loading four plates of materials. The transportation distance is about 12KM, and 320 m3 of concrete is poured on the beam within 6 hours, which is suitable for 10~11 concrete...

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