As the largest and most powerful multi-point and multi-lane steel warehouse manufacturer in Liaocheng and even the whole country, Yuanfeng Energy Saving is a large-scale steel warehouse widely used in cement steel warehouses and fly ash steel warehouses. After cooperation with large and medium-sized enterprises, The design, construction and monitoring of more than 200 multi-point and multi-lane large steel warehouses summarize the advantages over traditional single-point cutting.

1. Emptying rate

The multi-point cutting steel plate warehouse divides the warehouse into several discharge areas, each discharge area is a discharge point, the area of ​​each discharge opening is 1 square meter, and each discharge area is filled with filler , The slope angle is not less than 20°, and some places can reach 60°. The furthest position of discharge (the wall of the storehouse) is only 7.8 meters (Φ36 meters of storehouse) to the discharge port. No matter how big the storehouse is, it is basically controlled at this distance. For fluidized rods, a circular fluidized rod is set at the reservoir wall, and the slope of the reservoir wall to the discharge port is encrypted by the fluidized rod, so that there is no dead material area in the entire reservoir, and the emptying rate can reach more than 95%.

The single-point cutting steel plate warehouse only divides the warehouse into 2 layers and 3 areas (36 meters). It is divided into several cutting areas by the air supply. It is not an actual multi-point discharge. It finally passes through the Φ219 pipeline (depending on the amount of discharge) Entering the sealing decompression cone, the distance from the furthest position of discharge (the wall) to the decompression cone is 17.25m (Φ36m reservoir), 22.48m (Φ46m reservoir), the larger the distance, the farther the slope angle is 17 °, the material at the side of the warehouse rarely flows to the decompression seal cone, and many dead material areas are formed in the warehouse, especially at the side of the warehouse and at the inlet dark pipe and the lock pipe. The emptying rate can only reach 90% or lower.

2. Power consumption

The unloading in the multi-point unloading silo basically depends on gravity. Only when the material level is very low and the unloading is not smooth, the gasification fan (98kPa Roots fan) is turned on, while the single-point unloading silo is sealed cone, gas The chemical blower (98kPa Roots blower) cannot be unloaded without opening. Basically, multi-point cutting saves electricity for one Roots blower than single-point cutting.

3. Stability of discharge

The manual spiral gate and electric regulating disc valve used at the bottom of the multi-point and multi-lane cutting steel plate warehouse, together with electrical automation, can regulate and control the discharge volume, and the discharge method of gravity and pneumatic joint is affected by the air volume and wind of the Roots fan. The pressure and the material level in the warehouse are less affected, and the discharge can be adjusted and controlled steadily, and there will be no accident of the pressure hoist. In the event of a failure of the hoist, the electric valve can be quickly closed to stop the material, reaching the hoist, electric valve, gasification Luo Interlocking of the fan.

The single-point cutting is entirely based on pneumatic discharge, which is greatly affected by the air volume, air pressure and material level of the Roots fan. Although the Roots fan is added with frequency control, it is only found when the output volume changes significantly. Without manual adjustment, automatic control is simply not achieved, and accidents of the pressure hoist frequently occur. And when the hoist fails, it is necessary to wait until the entire gasification and discharge system is completely relieved of pressure to completely stop the material, increasing the difficulty of handling the accident.

4. Depth of out-pit elevator hoist

The center elevation of the discharge surge pipe of the multi-point blanking steel plate warehouse is basically -2.300. If the single-point blanking is a 36-meter-diameter warehouse, the elevation of the discharge surge pipe is about -3.500, resulting in more pits than the discharge elevator. The material depth is 1200mm, the greater the diameter, the more the depth.

5. Homogenization effect

The multi-point cutting steel plate warehouse divides a large warehouse into several discharge areas, and each discharge area is provided with a discharge point. Through electrical automation control, multiple discharge points can be discharged simultaneously and can be converted to each other. The upper gasification system realizes the homogenization function, the homogenization effect is better than the single-point cutting, and it is better than the traditional concrete open-channel homogenization effect.

The single-point cutting steel warehouse only divides the inside of the warehouse into 2 layers and 3 areas (36 meters of storage), and is divided into several cutting areas by the wind. It is not an actual multi-point discharge. The materials at the side of the warehouse rarely flow to the decompression and sealing Most of the cones come in close to the decompression cone, which is no different from the traditional open cone open groove, but it is the theoretically imagined homogenization function, and the homogenization effect is not good.

6. Requirements for groundwater level

Multi-point cutting steel plate warehouse floor ± 0.000 places, the materials in the warehouse can not reach the groundwater, as long as the corridor is waterproofed, and even if the water enters the corridor, it will not contact the materials, and there is no requirement for the groundwater level.

Single-point cutting steel plate library central area, slope, bottom material and fluidized bar layout area are mostly underground. The groundwater level is not allowed to be higher than the center basin bottom. If the groundwater level is high, the foundation must be raised as a whole to increase investment. If the foundation is not raised, if the waterproofing is not done well, the bottom plate of the warehouse will be stale, and the fluidized rod will die. If the material cannot be discharged, the warehouse must be thoroughly cleaned and the waterproofing and discharge system must be redone.

7. Structural safety

The single-point unloading steel storehouse is a self-floating pressurized foundation (no specification), the multi-point unloading steel storehouse is a shear wall frame structure (with specifications), and the main body of the storehouse is a combination of circumferential and vertical ribbed meshed sections. The top of the warehouse is spherical missing and cooperates with the truss or grid structure, and all meet the safety requirements of the structure through structural calculation.

8. Unloading equipment at the bottom of the warehouse

Multi-point and multi-lane cutting large steel warehouses have many discharge openings and are equipped with discharge adjustment equipment (manual plug-in valves and electric butterfly valves). For example, Φ36m warehouse needs 8 sets, and Φ36m warehouse needs 12 sets. . Equipment investment is higher than single point unloading.

Comprehend the above comparison, our company strongly recommends the multi-point unloading and multi-lane discharge scheme, and welcomes the majority of power plants, cement plants, building materials enterprises, consultation and exchange. Contact: Mr. Zhao Tel: Landline 0635 2929911