Water blasting machine, wet blasting machine, environmental protection water blasting machine, negative pressure water blasting machine
开放式液体水喷砂机/房平台 7.5KW open liquid water blasting machine / room platform
This machine is a new type of equipment that uses abrasive liquid pump and compressed air as power to perform abrasive liquid spray finishing on workpieces.
This machine can finish the rough surface, oxide scale, residual salt and burr of forging and casting blanks, welding parts, heat treatment parts, stamping parts and machined parts. It can be used for pre-coating and plating work, and can be used for blasting processing of high-precision, high-lightness, and complex-shaped parts that are difficult to complete by other processing methods. It is suitable for refurbishing old machinery.
This machine can also be used as liquid shot blasting (glass shot) to strengthen the surface of parts.
、工作时不产生粉尘，减少了粉尘对环境的污染和对工人健康的危害。 1. No dust is generated during work, which reduces the pollution of dust to the environment and the harm to workers' health.
、工作方法灵活，工艺参数可变，能适应不同材质、不同精度零件的加工要求。 2. Flexible working methods, variable process parameters, can adapt to the processing requirements of different materials and different precision parts.
、被加工表面质量高，在合理选择工艺参数条件下，一般喷后比喷前能提高粗 3 , the quality of the processed surface is high, under the condition of reasonable selection of process parameters, after spraying can generally increase the rough
Roughness level one. The surface of the parts after blasting is hardened, which can improve the wear resistance and fatigue strength of the parts.
、磨料循环使用，消耗量小。 4. Abrasives are recycled, and the consumption is small.
、主要零部件使用寿命长，且便于维修。 5. The main parts have a long service life and are easy to maintain.
This machine is composed of the main body, grinding liquid pump and spray gun, electrical control, etc., used to complete the basic operation and auxiliary work of liquid blasting.
(IV) Main technical data
）储箱截面积：标准设置1100*1100MM（自选），在主机斗的基础上往上往外拼接钢板和骨架，扩大操作平台，四周加上防护板，便形成对应的操作平台或喷砂房。 1 ) Cross-sectional area of storage tank: Standard setting is 1100 * 1100MM (optional). Steel plates and skeletons are spliced up and out on the basis of the main body bucket, and the operating platform is expanded. Protective panels are added around to form the corresponding operating platform or sandblasting room. .
）磨液泵电机功率为7.5KW； 2 ) Motor power of grinding pump is 7.5KW;
）磨料粒度46#～120#各种粒度的磨料； 3 ) Abrasive size 46 # ～ 120 #
）1-3把手动碳化硼喷砂枪，喷嘴直径 Æ6- 12mm ； 4 ) 1-3 manual boron carbide sandblasting guns, nozzle diameter Æ6- 12mm ;
）压缩空气气源压力为0.5～0.7MPa； 5 ) The pressure of compressed air source is 0.5 ～ 0.7MPa;
）单枪压缩空气消耗量约为1-1.5 m 3 /min； 6 ) Single-gun compressed air consumption is about 1-1.5 m 3 / min;
水源为工业用自来水。 7) The water source is industrial tap water.
(A) host system
This machine is the basic device for liquid blasting operations. The basic principle of grinding liquid jet processing is to use grinding liquid pump and compressed air as power, and spray the grinding liquid to the surface of the workpiece at high speed through the spray gun to achieve the purpose of sand blasting. Grinding liquid is made by mixing water with "deteriorating agent" and abrasives with a certain particle size in a certain ratio.
The sand blasting operation is performed on the upper working platform of the machine body (that is, the cross section of the storage tank) (the steel plate and the skeleton are spliced up and out on the basis of the main body bucket, and the operating platform is enlarged, and protective plates are added around to form the corresponding operating platform or spray Sand room). The spray gun is the main component that directly performs the liquid blasting work. It is connected to the two pipeline systems of grinding liquid and compressed air. During operation, the grinding fluid pump feeds the grinding fluid in the body storage tank to the spray gun through the grinding fluid pipeline at a certain pressure and flow rate. At the same time, a grinding fluid bypass is sprayed at high speed through the stirring nozzle of the grinding fluid storage tank , So that the abrasive and water in the storage tank are stirred evenly, so that the grinding liquid pump can work effectively. Compressed air enters the spray gun from an external air source through a solenoid valve. Through the working mode of air-pump application, the ejected air-grind flow can have a large speed, so the processing efficiency is high. Select the appropriate size of abrasive, the concentration ratio of the abrasive liquid, the spray angle and the spray distance. Waiting for the process parameters, the specified blasting process can be completed. The sprayed abrasive liquid is returned to the storage tank through the grid plate, and the workpiece is processed in this cycle.
(II) Sand collection system (optional-use of sand blasting machine, not applicable to sand blasting room)
The sand collector is a device used to concentrate the grinding fluid and collect the abrasive. The device can be activated in the following two cases: First, when the process requires frequent replacement of abrasive types and different specifications, collect the original abrasives for repeated use to reduce abrasive waste; second, after the abrasive liquid is used for a period of time, the number of broken abrasives increases, affecting The surface effect of the blasted product should be replaced with a new abrasive .
For example, glass beads are used for sandblasting aluminum alloys. The effect of the glass beads is different after the glass beads are broken. The broken glass beads that need to be replaced by the grinding fluid need to be collected by the sand collection system, or they can be directly discharged into the sewer, but the grinding is wasted. Liquid water, at the same time discharge the grinding fluid directly into the trench, which will lead to sewer blockage. At this time, the sand collector can be activated to collect the waste abrasive and then concentrated to prevent it from flowing into the sewer.
When the sand collector is activated, the normally closed "separation valve" must be opened, and the grinding fluid pump of the host machine will have a tangential liquid inlet pipe flowing through the valve to the cyclone through the grinding fluid, and then enter the cyclone at high speed. . Due to the constraints of the cone, the specific gravity of the abrasive and water in the grinding fluid are different, and the centrifugal force is also a result of a combination of factors. The concentration of the outer grinding fluid is bound to increase, and it will spirally sink to the lower end of the cone. Moisture is at the axis of the cyclone and is subject to upward force. It flows out of the water outlet at the top of the cyclone and flows back to the main engine tank along the duct.
In this way, after starting the grinding liquid pump for several minutes, stopping the grinding liquid pump and opening the sand discharging valve of the sand accumulation tank, the concentrated abrasive slurry container can be collected. Most of the abrasives in the grinding fluid can be collected for the first time, and the abrasives in the grinding fluid can be collected after 2 to 3 cycles (exceeding sand rate of more than 90%, except for the abrasives that do not participate in the grinding fluid circulation at the dead corner) . After collection is complete, the dispensing and sand ejection valves must be closed.
(III) Sedimentation box (optional for users, for workpieces with a lot of impurities in the blasting waste liquid, generally not required in the blasting room)
The sedimentation box is used to collect the slurry-like grinding liquid (non-solid) with a large amount of impurities overflowing from the overflow port. After the physical precipitation is purified in the pond, it is pumped back to the main body by the water pump to be recycled by the blasting bucket to prevent grinding. Fluid loss.
Third, the electrical system
(I) Main technical data
、电气设备 1.Electrical equipment
） 磨液泵电机： AC380V、50Hz、7.5KW。 1 ) Grinding pump motor: AC380V, 50Hz, 7.5KW.
） 总功率：约7.5KW。 2 ) Total power: about 7.5KW.
）电控箱：一套（含控制部分） 3 ) Electric control box: one set (including control part)
、磨料： 2. Abrasive:
）种类：推荐使用刚玉类磨料，也允许使用其他磨料。 1 ) Type: Corundum abrasives are recommended, but other abrasives are also allowed.
）粒度：46＃ ～ 120＃之间各种粒度的刚玉磨料及0.3mm以下的玻璃丸。 2 ) Granularity: Corundum abrasives of various sizes between 46 # to 120 # and glass shots below 0.3mm.
）用量：重量比1 : 5～1 : 7（干燥磨料:水）。 3 ) Dosage: weight ratio 1 : 5 ～ 1 : 7 (dry abrasive : water).
、喷枪： 3 , spray gun:
数量：1-3把碳化硼喷砂枪（手动）。 1) Quantity: 1-3 boron carbide sandblasting guns (manual). (5 meters for sand blasting hose, 5 meters for trachea)
）喷嘴直径：Φ6-12.5 mm。 2 ) Nozzle diameter: Φ6-12.5 mm.
）气嘴直径：Φ3-6.5 mm。 3 ) Gas nozzle diameter: Φ3-6.5 mm.
）工作压力(开机后的压缩空气表压)：0.5～0.7Mpa。 4 ) Working pressure (compressed air gauge pressure after starting): 0.5 ～ 0.7Mpa.
单枪耗气量：约为1～1.5m 3 /min（根据压缩空气压力确定）。 5) Air consumption of single gun: about 1 ～ 1.5m 3 / min (determined according to the pressure of compressed air).
、工作条件： 4. Working conditions:
） 电源：AC380V、50Hz。 1 ) Power supply: AC380V, 50Hz.
） 压缩空气源：气源压力0.8～1MPa、排量不小于7.5M 3 /min[指标准状态(20 0 C、101.325kPa)的空气体积流量]。 2 ) Compressed air source: Air source pressure 0.8 ～ 1MPa, displacement is not less than 7.5M 3 / min [refers to air volume flow in standard state (20 0 C, 101.325kPa)]. According to requirements, steel pipes can be embedded and connected to the host's air circuit with hard pipes; air hoses with an inner diameter of Φ25mm and a working pressure of 0.8Mpa can be connected to the host.
） 水源：工业用自来水。 3 ) Water source: industrial tap water. According to requirements, the steel pipe can be embedded, and the main machine waterway can be connected to the industrial tap water source with a hard pipe; it can also be connected with a water delivery hose with an inner diameter of Φ13mm.