How to use the concrete placing boom

Fabric machine is not free to take a long, long time to be received in more than the work agreed to set a fixed radius must be added support.

Change position when the discharge port, with one sack will be exported wrap, avoid concrete fell on the ground, to another location on the material and then unlock.
Ready for concrete placing boom of signal lines and radio, dual control, in the columns, walls concrete pouring, to ensure that the lamp pump stop, stop Li Ting, foreground pouring point required in advance 4S stopped, put out the lights, communication is necessary based hand carried out at night during the construction, coupled with the necessary control of concrete people flashlight, to see concrete pouring height.
Test, with a large rope control concrete spout and lever arm intermediate curved split at its large scope week run.
Take concrete pump tube, when taken over, it is necessary to check whether the full clean the pump tube, the interface is necessary to use a rubber gasket. After concrete pump pipe joint bolt should re-examine the case.
Wind cable rope with cloth lever legs fixed, cable wind rope too tight, should stay out of boom force and deformation interval.
Can not stand when the feed rod placed on the body to use when compacting frame tube legs, mounted on the ground floor.
Mounted boom and counterweight boom intermediate requirements necessary to discharge hit 200 ~ 300mm, the foot support surface or wooden sleepers bedding, check whether the shaft vertical fabric machine.
Erection frame body boom placement, and the inspection and acceptance, to calculate the force parts of the frame body capacity, reinforcing the case of stable situation Twill member of the foundation.
Check whether the bolts of cloth machine all tightening, whether normal hinge.
The fabric machine stand straight, see if you can stand straight in the case do not counterweight. (Boom under normal circumstances are considered to be in the counterweight can not stand straight, as when lifting boom, Common crane boom can not be with counterweight hanging together, need to be lifted in two installation).

Hydraulic System cloth machine Full description:
(1) climb hydraulic jacking system and the host system share a pumping station, the connection between the two systems using imported high-quality quick connectors, independent, free conversion conditions (cloth / lifting), safe, reliable, and effective system conditions to solve the oil spill problem switching process, to avoid polluting the environment.
(2) The machine adopts the open hydraulic system, the system is simple, reliable, easy to fault diagnosis and troubleshooting.
(3) As used boom balancing valve for the Italian Oilcontrol imported products with secondary overflow characteristics, can effectively ensure the smooth operation of the boom, to avoid influence by external cylinder pressure suddenly increased in the case of damage to the boom, enhanced use safety.
(4) rotating all-hydraulic drive, low speed high torque hydraulic motor planetary reducer, can be used for 480 ° rotation, smooth rotary motion and accurate. For fabric machine characteristics are often in high-altitude operations, the normally-open swing brake, to ensure that fabric machine in the non-working condition, free skating can turn the wind, not because the wind load is too large and damage the drive mechanism and structure.

What concrete pump truck arm vibration problem?

The problem is the current hot issues of practical application in the industry. Boom system as one of the core structure of concrete pump truck, truck boom in the construction process because the flow of concrete subjected to impact, it will inevitably have varying degrees of rock, concrete pump truck boom in extreme conditions end shaking can reach 1-2m, seriously affecting the fabric of concrete pump accuracy and construction safety.

Concrete Pump Truck company so active vibration control project team since 2009, began to conduct continuous damping control technology research, the project team from the beginning to the coupling mechanism of concrete pump truck boom to start the flow of concrete pump truck boom stimulated vibration principle depth analysis through multiple degrees of freedom arm gesture, multiphase flow reaction force of the impact study and the boom end vibration test, to identify the main factors affecting the concrete pump truck boom vibrations, for the latter were Active damping control of the foundation.

Among the many factors, the project team found that the root cause of pulsation pumping boom truck shaking. Concrete pressure pulsation inevitably causes vibration of the boom system. When the pump work, structural vibration boom and concrete delivery tube interaction, is a typical solid coupling dynamics pipes conveying fluid flow problems. Although the concrete in the pipe flow rate is small, but because of its high density and flexible multi-joint arm structure, coupling between the concrete and the boom can not be overlooked. To this end, the project team for pumping arm vibration - boom coupling system has been fully tested experimental research, the successful development of adaptive frequency vibration control technology. By pumping system error frequency control eliminates resonance boom, boom due to resonance to suppress excessive vibration problem caused significant effect.

For more general reaction force due to flow pulsations lead to concrete boom sloshing problems, the project team continued to Zoomlion concrete pump truck boom vibration characteristics of the mainstream models under typical attitude were studied and analyzed, to find out the different meter section of regular truck boom vibration. They tested by actual site for the actual construction conditions on critical control parameters adaptive control, the realization of concrete pump truck boom conditions become more active vibration control attitude, typical operating conditions can be damping the boom 50% the above. The team also aid eliminate drift control process control technology boom zero drift, greatly improving the safety of the construction. Currently, the company truck boom stability has been widely recognized by customers and affirmation.

With the development and progress of the company’s technology, more and more models are equipped with a carbon fiber composite material boom, compared with the previous all-steel boom, boom vibration characteristics of composite carbon fiber is more complex, the boom in the construction process high order vibration obvious, active vibration control to boom brought a new research topic. According to the characteristics of carbon fiber composite material of the boom, the project team in order for a vibration suppression on the basis of its high-end costs have also been there for inhibitory control, to achieve the overall objective of an integrated damping and control technology as a key mounted , has been applied on the 80m, 101m concrete boom pumpand other products to the company’s benchmark for landing the company’s product strategy provides a solid technical support.

How to clean fine aggregate concrete pump?

Fine aggregate concrete pump plays a very important role in the construction works warm, it can greatly improve the efficiency of construction warm. However, in the use of fine aggregate concrete pump in the process, pay attention to cleaning fine concrete pump is very important. Exactly how to clean fine aggregate concrete pump it? Specifically, we now take a look.
Experts pointed out: fine aggregate concrete pump pipe in the construction process, to pump tube cleaning, which is an important step after pumping essential. Good cleaning method generally either cleaned pipeline, the pipeline and can be delivered to all of the concrete casting location, not only to save the amount of concrete machinery, but also a considerable economic environment. Specifically, the step of cleaning the fine aggregate concrete pump has the following steps.
1. Check the cutting ring and glasses board
Check the cutting ring and eye wear between the plates, which is the key to the success of the direct kick cleaning method. If the cutting ring and wear and tear is not serious eye plate, cutting ring and eye plate spacing <0.1 mm, and no more than one millimeter between them grooves scratch, you can use direct kick method for cleaning.
2, short pipe cleaning method
Under normal circumstances, after finished pumping concrete can be pumped 0.15 ~ 0.25m \ +3 cement ratio of 1.5 or 1:2 mortar, then fill the water in the dispensing valve to start pumping, the concrete pumping to pouring location, until the output of the delivery tube with water until the effluent. If the pipe is shorter, the cleaning effect is better, then the cleaning process ends.
3, long pipe cleaning method
If the pipe is longer or cleaning effect is not very good, you can open the hopper discharge gate, and then the anti-pump, hopper and dispensing valve rinse. If pumping up and highly> 20 m, you can choose to use a wooden hammer percussion section at the bottom of the vertical pipe, if percussion sounds very low, you need to bend apart, poured can accumulate a large aggregate.

The role of the pump tube cards

Concrete pump pipe card what is the use? Today, a new procurement ask me this question, but I explained to him a long time before he learned, to explain to everyone here, I hope to be able to help you. Tube card is combined with the main pump works, used to connect the pump tube, because concrete delivery process, there are three meters tubing, tubing two meters, one meter tubing, wear elbow, etc., need a pump tube cards connected.
A measure of the quality control card has two a sign: the first is the material and process, casting the best, followed by ductile casting, most times the ordinary casting products, the price is successively reduced. The second is the weight of the pump tube cards, heavy weight, then the pressure is large, so good quality. General and supporting the use of the pump tube cards are apron, apron acts sealed, is also very important accessory, although cheap, but the role is very great.
Concrete pump pipe card, by definition, is a tube top with a clamp, the specific point that is directly connected with concrete pump tube clips for securing and sealing the interface, so that the pump delivery tube to normal concrete. Material pump tube cards are generally ordinary casting, casting, some using ductile casting, then sand, stain, plus screws and accessories, made a pump tube cards.

Construction process, the use of concrete pump truck repair

Concrete pump is now one of the most commonly used construction machinery, the main role is and concrete mixer used in conjunction with the construction now, and will require substantial use of concrete mixer, with the help of the project are very large, so when the concrete pump When the car encounters a failure, how to deal with, the following give an analysis of concrete pump truck when it encounters an error how to tackle and repair.
The exact location and physical characteristics of the Boom Crash
Ear hinge point at the end of the two-arm completely broken, most of the fault trace is displayed as the old crack (knuckle arm Tail: The sections on one arm and the head of the connecting end section arm; arm section head: boom sections The next section is connected with the rear end of the arm. below) the other ear plate section trailing second arm completely distorted, big bend rod, small curved rod and because two-arm rear ear pull fracture caused by a knuckle arm head Ministry ear plate partial extrusion. In addition to a knuckle arm head portion is deformed, the rest are new cracks due to a two-arm rear plate fracture caused by ear.
Since a two-arm root cause ear plate fracture obvious to the naked eye is difficult to find, we need to measure defects such as deformation and boom cylinder, connecting rod damage.
Boom fault repair method
According to the analysis of the accident, summed up the boom repair method first one, two, three, four boom (up from the turntable at) hanging down. Detection of parts, focus on examination of a damaged section and second section of the second arm of the boom cylinder damage. After examination, the results are as follows: turntable, undercarriage, three, four arms, each arm cylinder intact sections; one section two arm connecting pin, copper sets, three, four arm connecting pin, copper sleeve, arm, copper sets the turret connector is damaged, need to measure manufacturing; head section arms except a small place is crowded two-arm bending stress at other deformation is small, does not affect the assembly performance and use; the roots of a second arm section ear plate has been completely pulled crack, but also because of the ear on the other side plate cracking and seriously distorted; connecting a large section of the second arm bent rod and large-link is also due to two-arm lug plate fracture.
These are the reasons concrete pump experience a failure of analysis, breaking down in the face, we must first ensure the safety of personnel, and then analyze the cause of the malfunction, repair in accordance with article content was analyzed in order to ensure maximum efficiency of the project.

how to do it about concrete batching plant suddenly don't turn ?

Concrete batching plant suddenly did not turn up how to do, lead the North to make a clear analysis of the technical adviser when the production of concretebatching plant equipment does not rotate phenomenon, first taking into account the severe overloading, followed by stirring blades or side of the blade and the tank wall have large foreign bodies, then one is the motor drive belt is too loose, concrete mixer agitator shaft than the normal workload, the agitator shaft will slow, if the load is too large, it will lead to the stirring shaft stall. This occurs also make concrete mixer or agitator shaft stops rotating slowly. Stirring blades and the tank wall or the side of the blade has a larger foreign matter will lead to the agitator shaft is stopped, the card is able to store foreign body, it is due to concrete mixer mixing blade or vane and the inner wall side of the gap caused by too much. Concrete mixer motor belt is too loose can lead to concrete mixer agitator shaft slow or stop the rotation of the motor drive belt is too loose, resulting in inadequate power transmission. So how do we solve concrete batching plant stops, concrete mixer overload caused by the agitator shaft is stopped, simply adjust the feed rate, discharged excess material can reduce the agitator shaft load. Side blades and the inner wall of the card off stagnation material, stirring shaft stopped before there is often shrill grinding sound, such a situation, the need to immediately stop inspection, artificial exclusion of foreign body, re-adjust the concrete mixer and mixing blade or vane side tank wall clearance. Concrete mixer motor belt too loose, the only concrete mixer adjustment after the shutdown motor drive belt tension can be

Some concrete batching plant equipment related features

Demolition concrete batching plant will encounter a lot of related equipment, we understand these devices only after a series of things to know how correct handling the demolition, and after the installation and so on. Today, we start to understand some of the relevant characteristics of the overall device.

Concrete batching plant equipment is a mixing console, material weighing system, material handling systems, material storage system, the control system of the five components of the system and other ancillary facilities consisting of building materials manufacturing equipment, and its main job is to cement the principle of cementing material, The sand, lime, cinders and other raw materials were mixed and stirred, and finally made into concrete, as the wall material into the construction of production. Concrete batching plant since been put into use in China's building materials industry has played an important role, of course, this is also the concrete batching plant itself has superior characteristics of the decision.
Concrete batching plant equipment is divided into sand feed, powder feed, water and feed additives, transmission stirring with four parts storage, equipment Tongshen overall steel casting, high-quality H-beams not only look beautiful, but also enhance the overall structural strength of concrete batching plant equipment easy to install, it can be applied to a variety of complex terrain structures.
Concrete batching plant equipment with good stirring performance, the device uses a spiral twin-shaft forced mixing console, not only the mixer can be strong, to dry hard, plastic and various proportions of concrete are able to achieve a good mixing effect. Stir and high efficiency.
Concrete batching plant equipment not only has excellent mixing console, also has a variety of sophisticated accessories, such as screw conveyor, metering sensors, pneumatic components, these components ensure that the concrete mixer station during operation with high reliability, precise measurement skills and long service life. At the same time, concrete batching plant all maintenance parts are seized with a catwalk or ladder, and has enough room to maneuver, mixing console can be equipped with high-pressure automatic cleaning system has a function starvation and over-temperature alarm function, easy to equipment maintenance.
Concrete batching plant equipment has a good environmental performance, the machine running the process, powder manipulation are within the full blockade of the system, high-efficiency dust collector tank pink / mist spray and other methods greatly reduce the dust pollution of the environment, while concrete batching plant for pneumatic systems and unloading equipment are used exhaust muffler device effectively reduces noise pollution.
Demolition concrete batching plant must not damage these devices, known mixing station equipment these features, we also can be handy in the demolition of more time, and we can more fully use these devices in the future use of the process.

Several series introduced concrete mixer

Several series introduced a low-speed mixer is widely used in the paint lifting eccentric mixer, stirring solid dispersion, dissolution of efficient equipment, and widely used in coatings, inks, paints, glue
 Several series introduced mixer
Low-speed lift eccentric mixer
Widely used in paint, stirring solid dispersion, dissolution of efficient equipment, and widely used in coatings, inks, paints, adhesives and other chemical products, machine equipment consists of a hydraulic system, the main drive, mixing system, guiding mechanism, electric control box five parts, each part of the structure of the device is compact and reasonable. The main features of the low-speed lift eccentric mixer:
The mixer with variable speed, electromagnetic speed, frequency control (such as for water-based paint) and explosion-proof frequency control (such as for oil paints) and other forms. And variable speed function can fully meet the process in a different process requirements, you can choose different speed according to the different stages of the process, but the equipment for powder without additives, for crystal package integrity require a higher material not apply.
Lift mixer may be formed in the dispersion plate at the edge 2.5-5mm turbulent zone, discard pulp and particles by strong shear and impact, the device is mainly for raw materials of different viscosity of liquid slurry of pulverized, dispersing, emulsification, mixing, by dispersing new and efficient high speed mixing equipment up and down play the disc teeth may be the material for high-speed strong shearing, impact, crushing, dispersion, which can achieve rapid mixing, dissolving, dispersing, refined features.
The low-speed lift beneath the dispersion plate eccentric stirrer laminar flow conditions, different flow rates of slurry layer interdiffuse played dispersion. Since the high-speed disperser having a hydraulic lift, a variety of functions 360 degree rotation, variable speed, etc., can also be configured with only 2-4 containers, hydraulic lift travel 1000 mm and 360-degree swivel function can better meet a machine, and can in a very short period of time converting from one cylinder to another cylinder operation carried out, the device greatly improves the working efficiency, but also greatly reduces the labor intensity.
JZC series concrete mixer
Department reversal from the fall-out material mixer, stirring rotated by the ring gear, the work is being transferred stirring, reverse the material, can mix plastic and semi-rigid concrete for general construction sites, bridge projects and various concrete batching plant. JZC series concrete mixer is according to GB / T9142-2000 "concrete mixer technology," the design and manufacture, reasonable structure and high productivity, good mixing quality, attractive appearance, easy to move, etc., it is a more advanced model.