Vanse mechanical laser leveling machine serves overseas construction sites.

Considerations such as the price and cost-effectiveness of concrete laser leveling machines and return on investment are as follows: 1. Price The price of concrete laser leveling machines varies based on factors such as different models, configurations, and brands. Generally speaking, the prices of equipment of imported brands are relatively high, while the prices of equipment of domestic brands are relatively low. When purchasing a concrete laser leveling, you need to make a choice based on your actual needs and economic status. 2. Cost-effectiveness Concrete laser leveling machines are relatively cost-effective. Although the price of this machine is relatively high, due to its use of advanced laser measurement and control technology, it can achieve high-precision, high-quality concrete leveling, improving construction efficiency and quality. At the same time, the machine has a long service life, which can reduce the cost of frequent equipment replacement. In addition, the concrete laser leveling machine also has the characteristics of automation and intelligence, which can reduce labor costs and lost work rates, further improving the cost performance. 3. Return on investment Concrete laser levelings have a high return on investment. Because the machine can achieve high-precision, high-quality concrete leveling, construction efficiency and quality are improved, and the cost of repair and rework can be reduced, thereby reducing the total project cost. At the same time, the concrete laser leveling can shorten the construction period and increase the construction speed, thus increasing the project revenue. In addition, the concrete laser leveling machine also has the characteristics of environmental protection and energy saving, which is in line with the current social development trend and can bring good social benefits and image improvement to construction companies. 4. Other considerations In addition to the above aspects, the following factors also need to be considered: 1) Equipment maintenance and upkeep costs: The maintenance and upkeep costs of concrete laser levelings are relatively high, and equipment needs to be inspected and maintained regularly to ensure the normal operation and service life of the equipment. 2) Technology upgrading costs: The technology of concrete laser levelings is upgrading rapidly, and it is necessary to continuously follow the development trends of new technologies and new products in order to maintain competitive advantages and reduce costs. 3) Operator training cost: The operation of the concrete laser leveling requi res professional technical personnel for training and guidance, and a certain amount of training fees and time costs need to be paid. 4) Regional applicability and climate adaptability: Concrete laser leveling machines need to be constructed in different regions and climate conditions, and the equipment needs to have good regional applicability and climate adaptability. To sum up, the price of the concrete laser leveling machine is relatively high, but because it uses advanced laser measurement and control technology, it can achieve high-precision, high-quality concrete leveling, improve construction efficiency and quality, and has a higher cost performance and return on investment. When purchasing and using this equipment, multiple factors need to be considered to reduce costs and improve performance.

  As far as the concrete structure of shale gas platform is concerned, its construction requirements are generally relatively high, and the construction period is relatively long. With the continuous expansion of shale gas drilling platforms, the requirements for drilling rig foundation and platform flatness are constantly raised, and the drawbacks of traditional construction methods are gradually emerging. In order to reduce the labor intensity and improve the flatness of concrete, the application of laser levelling machine in shale gas platform construction has gradually become an inevitable trend. The following is a brief analysis of the specific application of laser leveling machine in shale gas platforms. 1. Analysis of shale gas platform construction status With the continuous acceleration of natural gas development speed, shale gas development gradually to the factory development, the platform area is also expanding, the drilling depth is also increasing, and the requirements for the flatness and construction cycle of the concrete floor are becoming higher and higher. The conventional construction method is to divide the warehouse according to the working width of the vibratory beam 6-7m, divide the whole site into 7-13 pieces in the width direction, support the mold or set up the guide rail on both sides of each piece, pour concrete and smooth the vibratory beam, such method needs to set up the template or adjust the elevation of the guide rail many times. Within the working range of the vibratory beam, the place where the concrete is not hollow and not full cannot vibrate, and small pit functions are more likely to be formed by bleeding and sinking during the later maintenance. Water accumulation occurs in rainy days after the completion of the site, which seriously affects the placement and production and use of shale gas production and transportation equipment in the later stage. Therefore, the conventional method can not meet the requirements of the flatness of the shale gas platform. 2. The feasibility of the application of laser leveling machine ▶ The leveling machine is small in size, light in weight, not high in road capacity, convenient and fast in transportation; ▶ The leveling machine has high degree of automation, low failure rate, simple operation and easy to learn, and low requirements for operators; ▶ The leveling machine has simple structure, low procurement cost, low use cost, and little loss due to weather and other reasons; ▶ The single leveling width of the laser leveling machine can reach 2~3m, the paving speed can reach 4~5m/min, the area of 500 square meters can be completed per hour, and the area of 4000 square meters can be completed every day. It can be seen that the construction speed is fast, and the efficiency is more than 3 times that of the conventional construction method, especially suitable for the shale gas platform construction period is high. Concrete surface construction with simple surface shape and large working surface; The laser leveling machine provides laser signal through a fixed transmitter, which can completely cover the whole scene. The receiver receives the signal in time, and the computer automatically calculates the design elevation according to the current position of the leveling machine, and issues adjustment instructions to the whole plate up to 10 times per second, eliminating the influence of uneven field base and greatly improving the smoothness of the concrete. Compared with the ground constructed by the laser leveling machine and the conventional method, 22 points were detected (one point every 5mx4m), and the average flatness was 1.3mm and 4.1mm, respectively. It can be seen that the leveling quality of the laser leveling machine is more than 3 times that of the conventional method. ▶ Due to the good platform visibility conditions, there is no need to change the position of the laser transmitter during the construction process of the laser levelling machine, which can reduce unnecessary processes and reduce errors caused by operational errors. In the construction process of concrete, it is not necessary to separate the bin support mold, only at the edge of the site support mold can reduce the support modulus of more than 74%. After leveling, the addition of a single disc hand-held polishing machine, double disc driving polishing machine and cutting machine can make the heavy manual labor into mechanical paving, vibrating, leveling, pulp lifting, plastering, which can reduce the operator by 30% compared with the conventional construction method, and save 2 to 3 yuan /㎡ than the conventional process. In summary, the laser levelling machine has fast speed, high efficiency and obvious economic benefits, which is suitable for the characteristics of shale gas platform, and it is very necessary and feasible to construct concrete in large areas in mountainous areas. At present, many pilot application results have confirmed that the use of laser levelling machine is not only feasible but also very necessary in the large-scale concrete construction of shale gas platform. On the one hand, the application of laser levelling machine can improve the flatness of the platform, on the other hand, it can also improve the construction efficiency, shorten the construction period and reduce the cost, compared with the conventional construction method, the benefits brought by this construction method are beyond doubt.

First, the use of precautions1. When using, adjust and maintain according to the maintenance methods and various regulations described in the corresponding product manual. 2. It is not allowed to work at full speed and full load immediately after starting. It must be gradually transitioned from low speed and no load to high speed full load. 3. The fuel used in the diesel engine must be clean and should be allowed to stand for more than 72 hours. 4. The normal water temperature (75 °C ~ 95 °C) should be maintained for the diesel engine with radiator. When releasing the cooling water, you must first open the radiator cover (after the water temperature is lowered, then open it to avoid burns), and then unscrew the water discharge switch on the cylinder block. 5. The normal working oil pressure should be 0.2~0.4MPa. 6, the load must be strictly controlled, no overload is allowed, otherwise it will affect the reliability and service life of the diesel engine. 7. After the new or replacement injector, the medium-speed low-load running-in should be carried out, and the running-in time should not be less than 30 minutes. Before installation, the parts should be cleaned with clean kerosene or light diesel oil to remove anti-rust oil. 8. In the course of operation, if abnormal phenomena are found, stop in time. Second, fuel, oil and cooling water 1. Fuel Users should select the light diesel grades to be used according to the season and ambient temperature of the region. Recommendation: Use diesel fuel with a sulfur content below 0.5%. If the sulfur content is high, the oil change cycle will be shortened. Diesel filling and precautions Before the diesel engine is injected into the diesel engine, it must be allowed to stand for more than 72 hours, then the upper layer of clean diesel oil without water and impurities or filtered with silk cloth. Warning: (1) Do not fill fuel tank with fuel while the engine is running. (2) Do not smoke when filling the fuel tank with diesel fuel. (3) Use a clean oil pipe when refueling. Do not splash diesel oil outside. (4) Wipe off the spilled fuel. Materials that are fueled must be moved to a safe place. 2. Lubricating oil The oil must be selected according to the regulations. The viscosity of the oil is greatly affected by the temperature, and the user needs to correctly select the corresponding brand oil according to the ambient temperature. 3.cooling water should use clean soft water: rain, tap water or river water. If you use well water, spring water or other hard water with more minerals, you should add appropriate amount of softener, such as sodium carbonate (soda). The easiest way to do this is to boil the water and then precipitate it to remove impurities and use. In the cold winter, antifreeze can be added to the cooling system to prevent freezing. The most commonly used antifreeze is an aqueous solution of ethylene glycol (glycol) or alcohol. The use of antifreeze should be noted: Since the antifreeze has the characteristics of increasing volume with increasing temperature, when adding the cooling medium, the addition amount should be 5% to 6% less than the total capacity of the cooling system. Ethylene glycol – water-based antifreeze is toxic, special care should be taken when using it, and no entry is allowed. The boiling point of ethylene glycol is 194.4 ° C, so the water in the antifreeze is easy to evaporate, and the alcohol should be properly added after a period of use. If it is not anti-rust antifreeze, it should be removed regularly. When the diesel engine is used for a long time, the surface of the cooling water chamber will form scale, which will affect the heat dissipation of the diesel engine. For this reason, the scale should be cleaned regularly. The cleaning method is as follows: When cleaning, 25% hydrochloric acid solution can be injected into the water chamber and parked for 10 minutes. After that, the solution was drained and washed with water. If the scale is not removed, repeat it again Cooling water filling and precautions: (1) Fill the cooling water to the mark of the filling port. (2) Note that the drain valve is closed after the cooling water flows out from the drain valve. (3) Tighten the filler cap. (4) Start the engine and run to normal temperature until the thermostat is turned on (the cooling water pipe is obviously warmed up during the big cycle). (5) After the first operation, stop cooling and check the liquid level. Inspection and preparation before starting 1. When the new machine is started for the first time, carefully check the tight connection of each part, whether the attachment is complete, and whether the operating mechanism is flexible. 2. Check the oil level of the oil pan and the fuel injection pump between the upper limit mark and the lower limit mark of the oil scale. 3. Check the fuel storage capacity of the fuel tank. Turn on the fuel tank switch to allow diesel to flow to the fuel injection pump and remove air from the fuel system. 4. Check the battery and wiring. Check the electrolyte level in the battery. 5. Check the cooling system and add enough water. 6. In case of cold and freezing weather, the diesel engine should be placed in a cold-proof place. When working in the field, heat the oil sump and add two or three times of hot water to warm the diesel engine before starting. 7. The clutch should be in the separated state when the diesel engine starts. Startup After the preparation work before starting is completed and confirmed to meet the requirements, it can be started. The clutch should be disengaged when starting. The starting steps are as follows: 1. Push the lock switch to start the diesel engine. The starting time is less than 5 seconds each time to protect the starter and battery. After each failed start, stop for 1-2 minutes and start again. If the start fails three times in a row, you should find out the cause and troubleshoot before starting again. Once the diesel engine is started, the starter switch key should be released immediately and the lock switch should be returned to its original position. 2. Check the oil pressure immediately after starting. When the diesel engine is running at idle speed, the oil pressure should not be lower than 0.05MPa. After the newly assembled diesel engine is started for 5 minutes, stop the oil level of the oil pan and check if necessary, add oil so that the oil level is between the upper and lower marks on the oil scale. 3. Within one minute after starting the diesel engine, the water temperature gauge should be checked immediately to confirm that the cooling system is working properly. V. Operation After the diesel engine is started, the full-load operation should not be carried out immediately. The diesel engine should be heated in the idle mode at low speed and medium speed. 1. When operating, always pay attention to the oil pressure and cooling water temperature. When the speed is calibrated, the oil pressure should be 0.2~0.4MPa (2~4kgf/cm) 2. The temperature of the cooling water outlet is controlled at 80-90 °C. 3. When the diesel engine is running, always pay attention to observe whether the reading on the instrument panel is normal, whether there is abnormal sound. If it is found, it should be stopped immediately to check and find the cause and then allow it to start and run again. 4, always pay attention to the sealing of the oil and water connections, if there is a leak, it should be immediately removed. 5. The charging generator must be charged to the battery during operation, and the ammeter pointer points to “+”. 6. New or overhauled diesel engines are allowed to run at full speed at full speed after 50 to 100 hours of operation. Small roller parking 1. Remove the load and gradually reduce the speed to idling for 3 to 5 minutes before parking. 2. When the temperature is lower than 5 °C, if antifreeze is not used, the cooling water should be drained in time after parking to prevent cracking of the body. 3. After each stop, the faults found during operation must be discharged in time, and necessary inspections should be carried out. The diesel engine should be inspected and maintained frequently, and some sporadic faults should be eliminated in time to keep the diesel engine working properly and avoid serious faults. The necessary conditions for good economic returns. Daily maintenance of small road roller: (in combination with inspection preparation work), the driver usually carries out maintenance every day; check the fuel tank fuel quantity and add enough; check the oil level in the oil sump, when it is insufficient, it should be added; check and eliminate leakage and leakage Oil and gas leakage; check the stability of each accessory device; check the liquid level of the water tank.