Jiaxi Bella Compressor Co., Ltd. is a manufacturing enterprise with an annual comprehensive energy consumption of more than 10,000 tons of standard coal. Energy conservation and emission reduction work is both a task that must be completed and an important social responsibility. In the energy consumption of the Canadian West Compressor Co., Ltd., compressed air energy consumption accounts for a considerable proportion (about 15% of the total power consumption of the enterprise). For the compressed air system of the Jiaxi Bella Bridge Township Plant, all aspects of compressed air production and use are analyzed to minimize the energy consumption of the compressed air system. 1Compressed air system overview The compressed air system of the bridge town factory is controlled by the mother. It is designed as two Ingersoll Rand oil-injected screw air compressors with 47.4m3/min and five Ingersoll Rand sprays of 29.6m3/min. Oil screw air compressor, single power is 250kW and 160kW respectively. The Ingersoll Rand ACS4000 air compressor centralized control system is used to switch the air compressor unit. The compressed air system of Daqiao Town Factory is divided into 3 channels for the whole plant to produce (see): After the air is compressed by the air compressor and processed by the refrigerating dryer, it is directly supplied to the equipment power gas, which is called A1; the other road is taken out from the A1 outlet pipe. After the micro-heat regeneration adsorption drying tower is processed, the parts are purged and the meter gas is called A2; there is also the problem that the high-pressure air compressor and the high-pressure refrigerating type 2 compressed air system are taken out from the A2 outlet pipe. Gas characteristics and equipment operation status The gas load of the bridge town factory fluctuates greatly. 8:00 14:00~15:00 is the peak period of the gas used in the factory. The gas consumption can be up to /min; and from 3:30 to 7:00 in the morning, the gas consumption drops suddenly due to the stoppage of most of the sections. In the normal production of the workshop, one 250kW and four 泯160kW air compressors operate simultaneously. However, there is always a 160kW air pressure in the frequent loading and unloading. In the morning from 3:30 to 7:00, due to the maximum gas consumption of the workshop exceeding 30m3/min, the use of a 160kW air compressor has the problem of insufficient gas supply. It is necessary to open a 250kW air compressor for production. Gas, but this air compressor is frequently loaded and unloaded. 2.2 End-use phase Many devices do not have a pressure relief valve. The pressure of the compressed air is very low. For example, the compressed air pressure required for the workpiece cleaning phosphating equipment is only 0.3 MPa, but the pressure reducing valve is not installed on the compressed air inlet pipe. The A1 and A2 provided by the air compressor station are all above 0.6 MPa, and the terminal is directly placed without passing through the pressure reducing valve, which is wasteful. Many blower valves are normally open. Regardless of whether the part is machined or not, the air valve of some blowing equipment is opened directly, for example, the air blowing equipment used to cool the workpiece in the assembly workshop is continuously blown during the lunch and rest of the staff. The phenomenon of “run, run, drip, and leak†on equipment and pipelines is serious. Due to aging of equipment piping and loose interfaces, there is a problem of compressed air in the internal air pipe and part of the gas pipeline of the equipment, which is deteriorating due to lack of attention. 3 measures for energy saving and consumption reduction of the system In the case of poor terminal gas conditions, the configuration of the air compressor station is optimized to reduce the energy consumption of the compressed air system, and the optimal system energy saving effect is not achieved. Therefore, it is decided to first carry out energy-saving control on the gas link of the terminal, and then carry out energy-saving improvement on the air compressor unit. 1 Energy-saving measures for the gas phase of the terminal Install a pressure-reducing valve on the intake pipe of the equipment. In particular, equipment with large gas and low pressure requirements is required to be equipped with a pressure-reducing valve, and then the pressure-reducing valve is adjusted to the pressure required by the equipment. value. The gas change valve is normally opened for intermittent gas supply. Install the induction device at the air blow port and change the manual air valve to an electric air valve. This ensures that the air is blown only when the equipment is processed, and the air valve remains closed when there are no parts. For the phenomenon of “run, run, drip, and leak†of compressed air, the workshop maintenance carried out the work of replacing the air leaking air gun and repairing the loose interface. In order to cure the problem of “run, run, drip and leak†of compressed air, the company revised the energy management system and established a long-term leak maintenance mechanism. 0. Organized the energy monitoring team to conduct energy inspection and report on the workshop with serious air leakage. criticism. 3.2 Optimization and modification measures in the air compressor station 3.2.1 Adjusting the pressure belt Through the on-site investigation, it is confirmed that the maximum pressure required for the equipment using A1 is 0.55 MPa, and the pressure required for the equipment using A2 is 0.5 MPa, and the equipment using A3 is used. The maximum pressure required is 1.45 MPa. Since the compressed air delivery line is long, the maximum value of the pipeline loss is set to 0.1 MPa3. Therefore, the pressure of the compressed air is adjusted to 3.2.2, and the compressed air is compressed after the above-mentioned energy saving measures. The amount of use has been significantly reduced compared to before, and the adjustment of the joint control method is most suitable at this time. Through the measurement of compressed air production, it is concluded that the demand for compressed air is reduced from 165m3/min to 145m3/min at the peak of gas consumption. According to the configuration of air compressor in air compressor station, two 250kW air compressors and 2 When a 160kW air compressor is used for air supply, the gas production can reach 154m3/min, which meets the gas requirements. Compared with a 250kW air compressor and four 160kW air compressors, the power consumption can be saved 70kWh at full load. Therefore, the joint control mode of the ACS4000 air compressor centralized control system is changed to 2 A 250kW air compressor is placed in front. Through the measurement of compressed air production, it is concluded that the compressed air usage is only 27m3/min during the period from 3:30 to 7:00 in the morning, so a 160kW air compressor can be opened. The frequency conversion of the 2.3250kW air compressor is greatly affected by the fluctuation of the compressed air consumption of the bridge town factory, while the load adaptability of the power frequency air compressor is poor. Therefore, an Ingersoll Rand IR5000-75-efficient energy-saving control system is installed, which can adjust the air compressor speed according to different working conditions and gas conditions, and the energy saving effect can reach 25% ~ 30%. Ingersoll The other function of the blue IR5000-75-high-efficiency energy-saving control system is to be able to control two 250kW air compressors, so that this can smoothly switch between the inverters to ensure the stability of the system. 4. 4 energy-saving effect 1 direct energy-saving effect through one The series of energy-saving measures, the gas production of compressed air system decreased from 1.25x105m3 per day to 9.5x 104m3 per day, and the power consumption of compressed air system decreased from 21000kWh to 14000kWh per day. The average electricity consumption of compressed air system was 4.2 by other energy-saving effects. A series of energy-saving measures, the number of system loading and unloading is significantly reduced, the system loading rate is increased from the original 72% to 93%, greatly improving the stability of the air compressor operation and reducing the failure rate of the air compressor. Through a series of energy-saving measures, the system supply pressure can be maintained at 0.66~0.68MPa for a long time, which not only reduces the system air consumption, but also stabilizes the system supply pressure to facilitate process production. 5 Conclusions The energy consumption of the compressed air system is not only closely related to the gas production stage but also closely related to the end gas phase. Therefore, comprehensive diagnostic analysis of the compressed air system is the basis for the correct evaluation of the energy saving space of the compressed air system. The addition of a pressure reducing valve to the terminal gas equipment can greatly reduce the amount of compressed air. Establishing a long-term leak maintenance mechanism can control the leakage to a reasonable extent. For the compressed air system with large variation in gas consumption, changing the power frequency air compressor to frequency conversion control can reduce the system air consumption, reduce the system power consumption, stabilize the system air supply pressure, and improve system stability.
The turn-out scrap Metal Baler machine is used to compress scrap metal (steel, copper, aluminum, stainless steel, etc)into metal block or metal bale. The purpose is to save the transportation cost or reduce the raw material loss when smelting.
After compressing, the metal bale is easy to transport and store, so it can save transporation cost, reduce storage area and reduce the loss when smelting. Easy operation, durable and long service life, high efficiency, etc.
1) Hydraulic drive, compact design, great sealing;
2) Customized press box size and bale size;
3) Bale discharging ways include turn-out, side-push out and forward-out;
4) Designed with quick unit that can improve work efficiency substantially;
5) Famous motor, hydraulic system, oil cylinder, piston pump, electrical components;
6) Blades: our scrap metal baler machine with the knife, it can cut the long size material when compressing, so it very goog for the long steel wire and big size material.
Turn-out Baler, Turn-out Baling Machine, Turn-out Baling Press, Turn-out Baler Equipment, Turn-out Metal Compactor Jiangyin Metallurgy Hydraulic Machinery Factory , https://www.hydraulicn.com