濕篩法土工布有效孔徑測定儀概述：

該儀器適用于所有類型土工布產(chǎn)品有效孔徑的測定,其性能符合GB/T17634—1998 《土工布及其相關產(chǎn)品有效孔徑的測定—濕篩法》標準對儀器的要求

Overview of wet sieve geotextile effective aperture tester:

This instrument is suitable for the determination of the effective pore size of all types of geotextile products, and its performance meets the requirements of the instrument for the determination of the effective pore size of geotextiles and related products-wet sieve method GB / T17634-1998

濕篩法土工布有效孔徑測定儀技術參數(shù)：

★夾持器內(nèi)徑：Φ176mm

★振動頻率：50Hz

★振動幅度：1.5mm（振動高度3mm）

★時間設定：分兩檔 0～99.99s 0～99分59s

★匹配電機: 2800r/min 550W

★電 源：Ac220V±10% 50Hz

★外形尺寸：680×420×750mm

★重 量：50Kg

Technical parameters of wet sieve geotextile effective aperture tester:

★ Inner diameter of holder: Φ176mm

★ Vibration frequency: 50Hz

★ Vibration amplitude: 1.5mm (vibration height 3mm)

★ Time setting: two levels 0 ～ 99.99s 0 ～ 99 minutes 59s

Matching motor: 2800r / min 550W

★ Power supply: Ac220V ± 10% 50Hz

★ Dimensions: 680 × 420 × 750mm

★ Weight: 50Kg

濕篩法土工布有效孔徑測定儀結構與工作原理：

★外觀

土工布有效孔徑測定儀由底板、外罩、夾持器與篩分裝置、噴淋系統(tǒng)等部分組成。 底板四角開有安裝槽，可用螺栓將之固定在基礎上或工作臺上；外罩左上角控制區(qū)裝有計數(shù)器、電源開關、啟動鍵。外罩與篩分振動裝置不直接觸，減少振動影響。

噴淋系統(tǒng)安裝在底板右側的支柱上，由進水口、流量開關、金屬軟管、蓮蓬頭組成，蓮蓬頭上配有一防濺蓋，使用時蓮蓬頭放置于透明罩內(nèi)，蓋上防濺蓋，并扣上夾扣，以防止水濺出。收集槽與振動頭剛性聯(lián)接，左側設有收集管，收集槽底配有支持網(wǎng)柵，試樣平鋪在網(wǎng)柵上，用夾持器將之壓緊，然后用翻轉螺栓和星形把手壓緊。

翻轉螺栓和星形把手的具體操作方法為：由于收集槽與夾持器間的防滲水要求，其外壁安裝有密封圈，因此有兩只啟蓋螺栓上開有長口槽，當夾持器難以取出時，可利用啟蓋螺栓反向旋轉，其卡口會提升起夾持器，以方便操作。

★土工布有效孔徑測定儀傳動系統(tǒng)： 由附著式混凝土振動器通過皮帶——齒輪帶動偏心輪轉動以帶動振動頭產(chǎn)生一定振頻與振幅振動。電機與振動元件分離安裝，平板與底板通過四個彈簧減振柱支承。振動頭與平板也采用彈簧減振柱聯(lián)接，以減少振動對儀器的影響。

Structure and working principle of wet sieve geotextile effective aperture tester:

★ Appearance

The geotextile effective aperture tester is composed of a bottom plate, a cover, a holder and a sieving device, and a sprinkler system. There are mounting slots at the four corners of the bottom plate, which can be fixed to the foundation or the workbench with bolts; the control area at the upper left corner of the cover is equipped with a counter, power switch and start key. The outer cover is not in direct contact with the screening vibration device, reducing the impact of vibration.

The spray system is installed on the pillar on the right side of the bottom plate. It consists of a water inlet, a flow switch, a metal hose, and a shower head. The shower head is equipped with a splash-proof cover. When in use, the shower head is placed in a transparent cover and covered with a splash-proof cover. Attach the clip to prevent water from splashing. The collection tank is rigidly connected to the vibrating head. A collection tube is provided on the left side. The bottom of the collection tank is equipped with a supporting grid. The sample is laid on the grid and compressed with a clamper. Tighten.

The specific operation method of the flip bolt and the star handle is: due to the water-proof requirement between the collecting tank and the holder, the outer wall is equipped with a sealing ring, so there are two long opening grooves on the cap screws. When the device is difficult to remove, the cap screw can be used to rotate in the opposite direction, and its bayonet will lift the holder for easy operation.

★ Geotextile effective aperture tester transmission system: The attached concrete vibrator drives the eccentric to rotate through the belt-gear to drive the vibrating head to generate a certain frequency and amplitude vibration. The motor and the vibration element are separately installed, and the flat plate and the bottom plate are supported by four spring damping columns. The vibration head and the flat plate are also connected by a spring damping column to reduce the impact of the vibration on the instrument.

濕篩法土工布有效孔徑測定儀外部環(huán)境：

★工作臺平整、穩(wěn)固、并且有良好的抗振性能。

★與對振動較敏感的儀器隔離。

★溫度10～30℃ 濕度≤80%

★電源：Ac220V±10% 50Hz

★外接供水須穩(wěn)壓水源（建議300KPa壓力下流量500mL/min）

External environment of wet sieve geotextile effective aperture tester:

★ The table is flat, stable, and has good anti-vibration performance.

★ Isolated from vibration sensitive instruments.

★ Temperature 10 ～ 30 ℃ Humidity ≤80%

★ Power: Ac220V ± 10% 50Hz

★ The external water supply must be a regulated water source (recommended flow 500mL / min at 300KPa pressure)

濕篩法土工布有效孔徑測定儀操作步驟：

★取出夾持器，將試樣平整無強力地平鋪在支承網(wǎng)柵上，然后用夾持器將之壓緊，試樣應保持水平。

★將按標準選取的顆粒材料均勻地撒在試樣上。

★進水口外接穩(wěn)壓水源，將蓮蓬頭放置透明罩內(nèi)，蓋上防濺蓋，并扣上夾扣，打開流量調(diào)節(jié)閥，對試樣進行噴水。

★在計時器上設置振動時間（按GB/T17634-1998標準可設置為600秒，本儀器計時器具兩檔計時功能，分別可設置范圍為0～99.99s和0～99分59s）。 .打開電源，開始測試。

★通過試樣的顆粒從收集槽流出，將之收集。

★到達設定時間后，使儀器停止振動.

★收集未通過的顆粒材料與試樣。

★再裝樣按啟動鍵復位。

★測試結果按GB/T17634-1998標準處理。

★儀器結束后，關閉電源，并清潔儀器。

Operation steps of wet sieve geotextile effective aperture tester:

★ Remove the holder, lay the sample flat on the support grid flat without force, and then compress it with the holder. The sample should be kept horizontal.

★ Spread the granular material selected according to the standard evenly on the sample.

★ The water inlet is externally connected to a regulated water source. The shower head is placed in a transparent cover, covered with a splash-proof cover, and the clip is closed. The flow regulating valve is opened to spray water on the sample.

★ Set the vibration time on the timer (according to GB / T17634-1998 standard, it can be set to 600 seconds, the instrument timer has two gears, which can be set to 0-99.99s and 0-99 minutes and 59s respectively). . Turn on the power and start the test.

★ The particles passing through the sample flow out of the collection tank and are collected.

★ When the set time is reached, stop the instrument from vibrating.

★ Collect failed particulate materials and samples.

★ Reload the sample and press the start key to reset.

★ Test results are processed according to GB / T17634-1998 standard.

★ After the instrument is finished, turn off the power and clean the instrument.

濕篩法土工布有效孔徑測定儀注意事項：

★本儀器工作時具有一定振頻，工作臺須與其它設備隔離。

★如采用砂土作試驗顆粒，請注意對儀器的清潔工作。

★試驗結束后，請將土工布有效孔徑測定儀內(nèi)的水與雜物清放干凈。

★對于偏心軸與支承彈簧，以及其它動作部件應定期加注潤滑油。

Precautions for wet sieve geotextile effective aperture tester:

★ This instrument has a certain vibration frequency when working, and the workbench must be isolated from other equipment.

★ If sａnd is used as the test particles, please pay attention to the cleaning of the instrument.

★ After the test, please clear the water and debris in the geotextile effective aperture tester.

★ For the eccentric shaft and supporting spring, and other moving parts should be regularly filled with lubricating oil.