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500气控型压力式喷砂机

500 air-controlled pressure sand blasting machine

Details

 

Pressure-holding mobile sand blasting machine:

: 每次作业喷砂机自动运作 , 一人操作 , 简单方便 . Features : The sandblasting machine operates automatically for each operation , and is operated by one person , which is simple and convenient .

     , 也可以进行除漆、焊缝除锈、制备毛化玻璃和其它工件的喷毛处理,效果十分显著,清理级别达到 SA2.5-3.0, 其粗糙度达到工艺要求。 Pressure mobile sand blasting machine is a kind of thermal spraying pre-processing machine. It uses compressed air as the power to spray clean and dry abrasive at high speed to the surface of the workpiece to be sprayed to meet the requirements of surface cleaning and hairening . It can also remove paint, The effect of removing rust on welds, and blasting for preparing frosted glass and other workpieces is very significant. The cleaning level reaches SA2.5-3.0, and its roughness meets process requirements.   The product has a wide range of uses, compact structure, simple maintenance, easy to use, etc. It is a necessary machine for thermal spraying (welding) various anticorrosive layers.

    The pneumatic remote control system of the pressure-holding pressure mobile sand blasting machine is composed of an air shut-off valve, a control air pipe, a manual control switch and an air-controlled sand control valve assembly.

     ( 截止阀上 A 口冲出 ) 到达手控开关 , 经另一气管排出至截止阀上进气口 (B ), 从而使截止阀内的主管道进气阀门打开,打通进入砂缸和缸侧主气管的气源通道 . 同时在 B 口外的气源由三通经截止阀上排气口 (c ) 冲出至调砂阀,调砂阀打开 , 这时砂缸内压力升高,砂气混合物从缸底经打开的砂阀胶芯内孔压出至出砂三通,喷砂作业开始。 When working, the handle is depressed to control the air flow to reach the manual control switch through one air pipe (the A port on the shut-off valve ) , and is discharged to the air inlet ( port B ) on the stop valve through the other air pipe , so that the main The air inlet valve of the pipeline is opened to open the air source channel into the sand cylinder and the main air pipe on the side of the cylinder . At the same time , the air source outside the B port is flushed out to the sand control valve through the exhaust port (c port ) on the stop valve to adjust the sand. When the valve opens , the pressure in the sand cylinder rises, and the sand-gas mixture is extruded from the bottom of the cylinder through the inner hole of the opened sand valve rubber core to the sand tee, and the sandblasting operation starts.

     ( 进气阀 ), 气控调砂阀这几个阀都必须启动,喷砂缸的气体都会增加和排放,且每一次的开关都有一定的时间,因为要等喷砂缸的气体全部排放完毕,操作工人才可放下喷嘴。 The characteristics of this model are that each time the valve is opened , the air shut-off valve ( intake valve ) and the air control sand control valve must be activated, the gas of the blasting cylinder will increase and discharge, and each time the switch has a certain Time, because it is necessary to wait for all the gas from the blasting cylinder to be exhausted, the operator can lower the nozzle.

     , 开机时气压冲击砂阀内胶帕 , 顶住工字座内胶芯的撞针会松开 , 横梁回位 , 调砂阀打开 . 因此每一次开关,砂管中会有一定的沙量储存,开枪时有瞬间脉冲。 Due to the use of pneumatic remote control abrasive valve, the sand regulating valve is normally closed when shutting down. When starting up, the air pressure impacts the rubber lining in the sand valve , and the striker against the rubber core in the I-shaped seat will loosen . Open . Therefore, every time the switch is opened , there will be a certain amount of sand stored in the sand tube, and there will be an instant pulse when the gun is fired.

      20m 长的喷砂作业,因为气动遥控反应有一个滞后时间,对于超过 20m 的喷砂作业,建议加配电控系统,就可大大缩短反应时间。 This system is not suitable for sandblasting operations longer than 20m , because the pneumatic remote control reaction has a lag time. For sandblasting operations longer than 20m , it is recommended to add a power distribution control system to greatly reduce the reaction time. , 则最好改用 45 度出砂的手动蝶形调砂阀 , 同时还得忍受 3-5 秒的延时 , 或者说使用我司新型空气截止阀 ( 最新设计 , 加设控制管道瞬间排气孔 D ), 可瞬间排气 , 减少延时 ,1 秒可以产生控制反应 . If it is necessary to use pneumatic control , it is better to use a manual butterfly sand adjustment valve with 45 degrees of sand output , and also have to endure a delay of 3-5 seconds , or use our new air shutoff valve (the latest design , Add a control port for the instant exhaust hole D port ), which can exhaust instantly , reduce the delay , and produce a control response in 1 second .

 

 

该机型系统参数: I. System parameters of this model:

、设备主要技术参数及结构 1. Main technical parameters and structure of the equipment

)主要技术参数 1 ) Main technical parameters

:500mm Cylinder block diameter : 500mm      :15-35 平方 /H( 视使用管道大小及气源压力决定 ) Sand blasting efficiency : 15-35 square / H ( depending on the size of the pipeline used and the pressure of the gas source )

:1300mm Cylinder height : 1300mm          :SA2.5-3.0 Blasting grade : SA2.5-3.0

Capacity     :0.2 立方 Product : 0.2 cubic          : 3 立方 /min Air consumption : 3 m3 / min

: 0.6-0.7Mpa Air supply pressure : 0.6-0.7Mpa

: 气动控制 , 故障率低 , 易损件少 , 投资少 , 效率高 , 轮式结构 , 定点及移动喷砂两用 , 移动方便 . Features : pneumatic control , low failure rate , less wearing parts, less investment , high efficiency , wheeled structure , fixed-point and mobile sandblasting , easy to move .

        

 

 

 

 

 

 

Second, use
、准备 1. Preparation

Connect all connections and circuits and all pipelines as shown in the figure, and check whether they are firm and sealed.

Check whether the pneumatic control system is normal and whether the manual control switch is normal.

Check that the exhaust valve is closed.

Wear a protective mask for sandblasting.

)用空气软管将喷砂机与气源连接 , 且紧固无误 . 1 ) Connect the sand blasting machine to the air source with an air hose and tighten it correctly .
)将喷砂管接到磨料阀出口端的快速接头,且锁定。 2 ) Connect the blast tube to the quick connector of the abrasive valve outlet and lock it.
)起动空压机,使表示压力达到所需的工作压力,空压机置于喷砂机上风口,以防止喷砂清理所造成的粉尘被吸入空压机。 3 ) Start the air compressor so that the indicated pressure reaches the required working pressure. The air compressor is placed on the air outlet of the sand blasting machine to prevent dust caused by sand blasting from being sucked into the air compressor.
)将洁净干燥的磨料装入喷砂机桶内。 4 ) Put the clean and dry abrasive into the barrel of the sand blasting machine. 加砂以砂缸 2/3 内为易 ) (It is easy to add sand within 2/3 of the sand tank )
)穿戴好喷砂用防护用品。 5 ) Wear protective equipment for sandblasting.

、操作 2.Operation
)喷砂工握住喷砂枪准备工作。 1 ) The blaster holds the blasting gun and prepares for work.
按下手控开关,进气阀延时数秒,气源接通。 2) Press the manual control switch, the intake valve delays for a few seconds, and the air source is turned on.
通气后高压空气自动打开进气阀 ( 空气截止阀 ) 及气控调砂阀,空气进入砂缸 , 缸内加压 , 伞形密封阀自动顶起将进料口封住,喷砂机内压力继续升高 , 喷砂枪即可自动进入喷砂状态 . 3) After venting, the high-pressure air automatically opens the air inlet valve ( air cut-off valve ) and air-controlled sand control valve. The air enters the sand cylinder and is pressurized in the cylinder . The umbrella-shaped sealing valve automatically lifts up to seal the inlet and the sand blasting machine. The internal pressure continues to rise , and the blast gun can automatically enter the blasting state .

在喷砂作业时,根据喷砂状态,调节遥控磨料阀上的手柄,可调节磨料出口流量的大小 , 顺时针为紧 , 逆时针为松 . 磨料的流量不宜过大,在太阳或其它明亮的光源下观察,含有磨料的空气流与纯空气流并无多大差别。 2) During the blasting operation, according to the blasting state, adjust the handle on the remote control abrasive valve to adjust the flow rate of the abrasive outlet , tightening clockwise and loosening counterclockwise . The flow of abrasive should not be too large, in the sun or other Observed under a bright light source, the flow of air containing abrasives is not much different from the flow of pure air.

本机采用气动控制调砂阀 , 正常停机状态下工字座内阀心为关闭状态。 Air control sand valve adjustment steps: This machine adopts pneumatic control sand control valve , and the valve core in the I-shaped seat is closed under normal shutdown state.

㈠Adjust the left screw so that the left beam squeezes the rubber core to the middle of the sand valve rubber core hole;

, 使得横梁向左挤压胶芯至中间部位 , 与左边螺丝所顶胶芯闭合 , 形成关闭 , 也就是说左边螺丝和右边螺母同时向阀心拧紧时的阀心成密闭状态 . 此时参考的外观现象为喷嘴口有气体流出,无砂喷出,气体流量不大为宜。 ㈡Adjust the nut under the handle of the sand control valve on the right side, and adjust it into the right crossbar in the extruded I- shaped seat , so that the crosshead squeezes the rubber core to the left to the middle , and closes with the rubber core on the left side of the screw , forming a close It is said that when the left screw and the right nut are tightened to the valve core at the same time, the valve core is closed . At this time, the reference appearance phenomenon is that there is gas flowing out of the nozzle port, no sand is ejected, and the gas flow is not large.

, 压缩空气进入调砂阀后会挤压调砂阀内胶帕 , 使得弹簧收缩 , 工字座内右侧横梁回位 , 从而打开胶芯内通道 , 磨料通过砂阀 , 形成喷砂工作 . ㈢When the manual control switch is pressed, after the compressed air enters the sand control valve, the rubber pad inside the sand control valve will be squeezed , which will cause the spring to contract , and the right side beam in the I-shaped seat will return to open the inner channel of the rubber core, and the abrasive will pass through the sand valve . Formation of sandblasting work .

At this time, observe the amount of sand. A lot of sand sprays out without strength. You need to tighten the handle clockwise to reduce the return space of the right beam to reduce the amount of sand. Otherwise, the amount of sand increases. 注意:喷砂一段时间后因砂阀胶芯会磨损,因此要重复㈠㈡步骤,直至砂阀胶芯磨穿更换 ( Caution: The sand valve rubber core will wear out after blasting for a period of time, so repeat the ㈠㈡ step until the sand valve rubber core wears out and is replaced.

3) , 失去控制信号后数秒时间内,机器自动关闭进气阀(截止阀)和遥控磨料阀,喷砂枪慢慢自动停止喷砂工作 . At the end of the operation, the manual control switch is released , and within a few seconds after the control signal is lost, the machine automatically closes the air inlet valve (cutoff valve) and remote control abrasive valve, and the blasting gun automatically stops the blasting operation slowly .

, 打开砂缸上部排气阀 , 缸内排气 . 关闭电源 , 关闭空气压缩机 , 清理缸内剩余磨料 , 防止潮湿结块或堵砂 . After the blasting operation is completed, turn off the ball valve switch before the main air source enters the sand cylinder, stop supplying air to the sand cylinder , open the upper exhaust valve of the sand cylinder , and exhaust the air in the cylinder . Turn off the power , turn off the air compressor , and clean the cylinder. Residual abrasive to prevent wet agglomeration or block sand .

Third, stop
  
When the blasting machine takes a long time to shut down, the abrasive in the barrel should be cleaned to prevent failure due to the damp of the abrasive when it is reused. The steps to clean the abrasive are:
、卸掉喷嘴。 1. Remove the nozzle.
、将喷砂软管置于一容器内。 2. Place the sandblasting hose in a container.
、关闭主气阀和排气阀且磨料阀开启到最大限度。 3. Close the main air valve and exhaust valve and the abrasive valve is opened to the maximum.
、打开进气阀。 4. Open the intake valve. , 让喷砂机作业 , 直至把缸内多于磨料排干净 . Press the manual control switch and let the sandblasting machine operate until the cylinder is more than the abrasive .

   The sand blasting machine should be covered when it is placed outdoors at night to prevent water from entering the bucket.


Fourth, maintenance
、更换封闭阀 ( 伞斗 ) 1.Replace closed valve ( umbrella bucket )
  
( 伞斗 ) 下的接口(导管),把它们从桶内取出。 Open the service port valve, and use a small pipe wrench to unscrew the connection (conduit) under the conical closed valve ( umbrella bucket ) and remove them from the barrel. Replace it with a new shut-off valve. Install the inspection hole cover and tighten all the screws.
、更换进料口密封圈 2.Replace the sealing ring of the inlet
  
Use your nails or a screwdriver to gently remove the old seal and press the new seal into the seal seat.
、定期检查进气阀 ( 空气截止阀 ) 和排气阀内的 O 形密封圈、活塞、弹簧、密封垫和其他零件的润滑和磨损情况。 3. Regularly check the lubrication and wear of O -rings, pistons, springs, gaskets and other parts in the intake valve ( air shut-off valve ) and exhaust valve .

Five, troubleshooting
、堵塞 1. Blockage
)喷嘴出口处既无磨料也无空气 1 ) No abrasive or air at the nozzle exit
  
Close the inlet valve and open the exhaust valve. After the pressure of the blasting machine is released, check whether the nozzle is blocked.
)有空气无磨料 2 ) Abrasive with air
  
( 进气口处球阀开关 ) ,若此法不能奏效,则需打开检查孔清除桶内杂物或打开磨料阀,清除磨料阀内堵塞物。 Open the abrasive valve to the maximum limit, quickly open it and then immediately close the main air valve ( ball valve switch at the air inlet ) . If this method does not work, you need to open the inspection hole to clear the debris in the bucket or open the abrasive valve to clear the abrasive valve. Internal blockage.
、磨料流量稍有不稳乃属正常现象。 2. It is normal that the abrasive flow is slightly unstable. If the abrasive flow continues to be unstable, quickly open it and then immediately close the main air valve to eliminate this fault.
、清除受潮的磨料 3.Remove dampened abrasive
  
Remove the blasting hose and the corresponding gasket, open the abrasive valve and the inlet valve, and the damp abrasive can be removed (note: the inlet speed of the abrasive is very high, and unrelated personnel must stay away from the inlet of the abrasive valve). Then close the intake valve, open the exhaust valve, and then connect the blasting hose after removing the nozzle to the blasting machine. Open the intake valve and the main air valve, and the wet abrasive in the blasting hose is also removed. Close the exhaust valve, and then connect the nozzle to the blasting hose. The blasting operation can be resumed in normal steps.
、排气阀不排气或排气缓慢 4 , the exhaust valve does not exhaust or exhaust slowly
)清洗 1 ) Cleaning
)更换排气阀 . 2 ) Replace the exhaust valve .

Nozzle diameter

 

MPa Effective pressure ( MPa )

m 2 /h (Sa2.5 Sa3.0) Cleaning efficiency m 2 / h (Sa2.5 Sa3.0)

0.5

0.6

0.7

 

6.5mm

(m 3 /min) Air consumption (m 3 / min)

 

1.6

 

1.9

 

2.1

 

11 6 11

(Kg/h) Abrasive consumption (Kg / h)

170

200

240

 

8mm

(m 3 /min) Air consumption (m 3 / min)

 

2.9

 

3.5

 

3.9

 

20 10 20

(Kg/h) Abrasive consumption (Kg / h)

280

340

380

 

10mm

(m 3 /min) Air consumption (m 3 / min)

 

5.4

 

6.5

 

7

 

30 16 30

(Kg/h) Abrasive consumption (Kg / h)

500

600

680

 

 

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