數(shù)顯葉輪攪拌器

一，數(shù)顯葉輪攪拌器產(chǎn)品簡介：

石粉含量測定儀采用**的調(diào)頻、數(shù)控、技術(shù),提高了試驗精度與速度。石粉含量測定儀是按照T0349-2005規(guī)范，<細集料試驗>而設(shè)計的儀器。適用于確定細集料中是否存在膨脹性粘土礦物，并測定其含量，以評定集料的潔凈程度，以值MBV表示。

Product introduction of stone powder content analyzer:

The stone powder content tester uses the best frequency modulation, numerical control and technology to improve the test accuracy and speed. The stone powder content measuring instrument is designed according to the Ministry of Communications T0349-2005 specification, . It is suitable for determining the presence of swellable clay minerals in fine aggregates and determining their content to assess the cleanliness of the aggregates, expressed as methylene blue value MBV.

二，數(shù)顯葉輪攪拌器技術(shù)參數(shù)：

★攪拌轉(zhuǎn)速自控：600±60r/min 400±40r/min

★計時裝置： 大90分鐘 分辨率1秒

★轉(zhuǎn)速測量誤差： ±2r/min

★攪拌葉輪： Φ75±10mm

★玻璃瓶容量： 1l

★自控功能： 可選擇MB測定法或快速試驗法

★外形尺寸：300X200X600mm

★重量：15kg

Second, the technical parameters of stone powder content analyzer:

★ Automatic control of stirring speed: 600 ± 60r / min 400 ± 40r / min

★ Timing device: 90 minutes, 1 second resolution

★ Speed measurement error: ± 2r / min

★ Stirring impeller: Φ75 ± 10mm

★ Glass bottle capacity: 1l

★ Automatic control function: Methylene blue MB test method or methylene blue rapid test method can be selected

★ Dimensions: 300X200X600mm

★ Weight: 15kg

三，數(shù)顯葉輪攪拌器使用方法：

★時間設(shè)定：接通電源，先按“時間設(shè)置"撥碼器，時間顯示為3位。A大時間為999秒。例如：設(shè)定攪拌時間為8分鐘，撥碼器設(shè)為480。攪拌8分鐘后，攪拌自動停止。如需繼續(xù)攪拌4分鐘，可將撥碼器設(shè)為240，按一下清零開關(guān)儀器從新工作，即攪拌4分鐘后停止。每次攪拌停止后，儀器能自動蜂鳴報警。

★轉(zhuǎn)速設(shè)定：當儀器接通電源后，撥動“速度選擇"開關(guān)，速度600轉(zhuǎn)/min，可轉(zhuǎn)換為400轉(zhuǎn)/min。

★啟動儀器：當時間與速率設(shè)定完成后，按下啟動開關(guān)，即進入攪拌狀態(tài)。如中途停止攪拌，再次按下啟動開關(guān)又進入工作狀態(tài)。

Third, the use of stone powder content analyzer:

★ Time setting: Turn on the power, first press the "time setting" dialer, the time is displayed as 3 digits. The big time is 999 seconds. Example: Set the stirring time to 8 minutes and the dialer to 480. After stirring for 8 minutes, stirring stopped automatically. If you need to continue stirring for 4 minutes, you can set the dial to 240, press the zero switch once to restart the instrument, that is, stop after stirring for 4 minutes. After each stirring stop, the instrument can automatically beep.

★ Speed setting: When the instrument is powered on, toggle the "speed selection" switch, the speed is 600 rpm, which can be converted to 400 rpm.

★ Start the instrument: When the time and rate settings are completed, press the start switch to enter the stirring state. If you stop stirring in the middle, press the start switch again to enter the working state.

四，數(shù)顯葉輪攪拌器適用范圍：

★本方法適用于確定細集料中是否存在膨脹性粘土礦物，并測定其含量，以評定集料的潔凈程度，以值MBV表示。

★本方法適用于小于2.36㎜或小于0.15㎜的細集料，也可用于礦粉的質(zhì)量檢驗。

★當細集料中的0.075㎜通過率小于3%時，可不進行此項試驗即作為合格看待。

Fourth, the scope of application of stone powder content analyzer:

★ This method is suitable for determining the presence of swellable clay minerals in fine aggregates and determining their content to assess the cleanliness of the aggregates, expressed as methylene blue value MBV.

★ This method is suitable for fine aggregates less than 2.36㎜ or less than 0.15㎜, and can also be used for quality inspection of mineral powder.

★ When the 0.075㎜ pass rate in the fine aggregate is less than 3%, it can be regarded as qualified without this test.

五，數(shù)顯葉輪攪拌器試驗步驟：

★標準溶液910.0g/L±0.1g/L標準濃度)配制；

(1)測定中的水分含量w。稱取5g左右的粉末，記錄質(zhì)量mh，**到0.01g。在100℃±5℃的溫度下烘干至恒重(若干溫度超過105℃，粉末會變質(zhì))，在干燥器中冷卻，然后稱重，記錄質(zhì)量mg，**到0.01g。按式(T0349-1)計算的含水率w

w = (mh-Mg)/mg×100

式中：mh—粉末的質(zhì)量(g)；

mg—干燥后的質(zhì)量(g)。

(2)取粉末(100＋w)(10g±0.01g)/100(即干粉末質(zhì)量10g)，**至0.01g。

(3)加熱盛有約600mL潔凈水的燒杯，水溫不超過40℃。

(4)邊攪動邊加入粉末，持續(xù)攪動45min，直至粉末全部溶解為止，然后冷卻至20℃。

(5)將溶液倒入1L容量瓶中，用潔凈水淋洗燒杯等，使所有溶液全部移入容量瓶，容量瓶和溶液的溫度應(yīng)保持在20℃±1℃，加潔凈水至容量瓶1L刻度。

(6)搖晃容量瓶以保證粉末溶解。將標準液移入深色儲藏瓶中，標準溶液保質(zhì)期應(yīng)不超過28d。配制好的溶液應(yīng)標明制備日期、失效日期，并避光保存。

★制備細集料懸濁液

(1)取代表性試樣，縮分至約400g，置烘箱中在105℃±5℃條件下烘干至恒重，待冷卻至室溫后，篩除大于2.36mm顆粒，分兩部分備用 。

(2)稱取試樣200g，**至0.1g。將試樣倒入盛有500mL±5mL潔凈水的燒杯中，將攪拌器速度調(diào)到600min，攪拌器葉輪離燒杯底部約10mm。攪拌5min，形成懸濁液，用移液管準確加入5mL溶液，然后保持400r/min±40r/min轉(zhuǎn)速不斷攪拌，直到試驗結(jié)束。

★吸附量的測定

(1)將濾紙架空放置在敞口燒杯的頂部，使其不與任何其它物品接觸。

(2)細集料懸濁液在加入溶液并經(jīng)400r/min±40r/min轉(zhuǎn)速攪拌1min起，在濾紙上進行A次色暈檢驗。即用玻璃棒沾取一滴懸濁液滴于濾紙上，液滴在濾紙上形成環(huán)狀，中間是集料沉淀物，溶液的數(shù)量應(yīng)使沉淀物直徑在8mm~12mm之間。外圍環(huán)繞一圈無色的水環(huán)。當在沉淀物周圍邊緣放射出一個寬度約1mm左右的淺藍A暈時，試驗成為陽性。

(3)如果A次的5mL沒有使沉淀物周圍出現(xiàn)色暈，再向懸濁液中加入5mL溶液，繼續(xù)攪拌1min，再用玻璃棒沾取一滴懸濁液，滴于濾紙上，進行二次色暈試驗，若沉淀物周圍仍未出現(xiàn)色暈，重復(fù)上述步驟，直到沉淀物周圍放射出約1mm的穩(wěn)定淺藍A暈。

(4)停止滴加溶液，但繼續(xù)攪拌懸濁液，每1min進行一次色暈試驗。若色暈在A初的4min內(nèi)消失，再加入5mL溶液；若色暈在第5min消失，再加入2mL溶液。兩種情況下，均應(yīng)繼續(xù)攪拌并進行色暈試驗，直至色暈可持續(xù)5min為止。

(5)記錄色暈持續(xù)5min時所加入的溶液總體積，**至1mL。

★的快速評價試驗

(1)按三.2.(1)及三.2.(2)要求制樣及攪拌。

(2)一次性向燒杯中加入30mL溶液，以400r/min±40r/min轉(zhuǎn)速持續(xù)攪拌8min然后用玻璃棒粘取一滴懸濁液，滴于濾紙上，觀察沉淀物周圍是否出現(xiàn)明顯色暈。

★小于0.15mm粒徑部分的值MBVF 的測定

按三.1~三.3的規(guī)定準確試樣，進行試驗測試，但試樣為0~0.15mm部分，取30g±0.1g。

★按T0333的篩洗法測定細集料中含泥量或石粉含量。

Five, stone powder content tester test steps:

★ Standard methylene blue solution 910.0g / L ± 0.1g / L standard concentration).

(1) The water content w in methylene blue is measured. Weigh about 5g of methylene blue powder, record the mass mh, ** to 0.01g. Dry at 100 ℃ ± 5 ℃ to constant weight (some temperature exceeds 105 ℃, methylene blue powder will deteriorate), cool in a desiccator, then weigh, record the mass mg, ** to 0.01g. Calculate the water content of methylene blue according to formula (T0349-1)

w = (mh-Mg) / mg × 100

In the formula: mh—mass of methylene blue powder (g);

mg—mass of methylene blue after drying (g).

(2) Take methylene blue powder (100 + w) (10g ± 0.01g) / 100 (that is, the mass of methylene blue dry powder is 10g), ** to 0.01g.

(3) The beaker containing about 600 mL of clean water is heated, and the water temperature does not exceed 40 ° C.

(4) Add the methylene blue powder while stirring, and continue stirring for 45 minutes until the methylene blue powder is completely dissolved, and then cool to 20 ° C.

(5) Pour the solution into a 1L volumetric flask, rinse the beaker, etc. with clean water, and move all the methylene blue solution into the volumetric flask. The temperature of the volumetric flask and solution should be maintained at 20 ° C ± 1 ° C. Volumetric flask 1L scale.

(6) Shake the volumetric flask to ensure that the methylene blue powder is completely dissolved. Transfer the standard solution into a dark-colored storage bottle. The shelf life of the standard solution of methylene blue should not exceed 28 days. The prepared solution should be marked with the date of preparation and expiration date, and stored away from light.

★ Preparation of fine aggregate suspension

(1) Take a representative sample, shrink it to about 400g, and place it in an oven at 105 ° C ± 5 ° C to dry to a constant weight. After cooling to room temperature, remove particles larger than 2.36mm and divide it into two parts for use.

(2) Weigh 200g of sample, ** to 0.1g. Pour the sample into a beaker containing 500mL ± 5mL of clean water, adjust the speed of the stirrer to 600min, and the impeller of the stirrer is about 10mm from the bottom of the beaker. Stir for 5min to form a suspension. Accurately add 5mL of methylene blue solution with a pipette, and then keep stirring at a speed of 400r / min ± 40r / min until the end of the test.

★ Determination of methylene blue adsorption

(1) Place the filter paper overhead on the top of the open beaker so that it does not come into contact with any other items.

(2) After adding the methylene blue solution to the fine aggregate suspension and stirring at a speed of 400 r / min ± 40 r / min for 1 min, perform a color haze test on the filter paper. That is, use a glass rod to dip a drop of suspended liquid on the filter paper, and the droplets form a ring on the filter paper, with the aggregate sediment in the middle. The amount of the solution should be such that the diameter of the precipitate is between 8mm and 12mm. The periphery is surrounded by a colorless water ring. The test became positive when a light blue A halo with a width of about 1 mm was radiated around the edge of the sediment.

(3) If 5 mL of methylene blue from A time does not cause color haze around the precipitate, add 5 mL of methylene blue solution to the suspension, continue stirring for 1 min, and then take a drop of the suspension with a glass rod and drop it on On the filter paper, perform a secondary halo test. If the halo does not appear around the sediment, repeat the above steps until a stable light blue A halo is emitted around the precipitate.

(4) The dropwise addition of the methylene blue solution is stopped, but the suspension is continuously stirred, and a halo test is performed every 1 min. If the color halo disappears within 4 minutes of the initial stage of A, then add 5 mL of methylene blue solution; if the color halo disappears within the first 5 minutes, add 2 mL of methylene blue solution. In both cases, the stirring and the halo test should be continued until the halo can last for 5 minutes.

(5) Record the total volume of the methylene blue solution added when the halo lasts for 5 minutes, ** to 1 mL.

★ Methylene blue rapid evaluation test

(1) Prepare samples and stir according to the requirements of 3..2. (1) and 3..2. (2).

(2) Add 30mL of methylene blue solution to the beaker at one time, continue stirring for 8min at a speed of 400r / min ± 40r / min, then stick a drop of suspension with a glass rod, drop it on the filter paper, and observe whether a clear color appears around the precipitate gosh.

★ Measurement of methylene blue value MBVF of particle size less than 0.15mm

Carry out the methylene blue test according to the accurate samples specified in III.1 to III.3, but for the sample of 0 ~ 0.15mm, take 30g ± 0.1g.

★ Measure the mud content or stone powder content in fine aggregate according to the sieve washing method of T0333.

六，數(shù)顯葉輪攪拌器公式：

★細集料值MBV按式(T0349-2)計算，**至0.1。

Six, stone powder content analyzer formula:

★ The MBV of the fine aggregate methylene blue is calculated according to the formula (T0349-2), ** to 0.1.

式中：MBV—值(g/kg)，表示每千克0~2.36mm粒級試樣所消耗的克數(shù)； m—試樣質(zhì)量(g)；V—所加入的溶液的總量(mL)；

★快速試驗結(jié)果評定

若沉淀物周圍出現(xiàn)明顯色暈，則判定快速試驗為合格，若沉淀物周圍未出現(xiàn)明顯色暈，則判定快速試驗不為合格。

★小于0.15mm部分或礦粉的值MBVF按式(0349-3)計算，**至0.1。

In the formula: MBV—methylene blue value (g / kg), which represents the number of grams of methylene blue consumed per kilogram of 0 to 2.36mm particle size sample; m—sample mass (g); V—added The total amount of methyl blue solution (mL);

★ Methylene blue rapid test results evaluation

If there is obvious color halo around the sediment, then the methylene blue rapid test is judged as a pass; if there is no obvious color halo around the sediment, the methylene blue rapid test is judged as a disqualification.

★ MBVF of methylene blue value less than 0.15mm or mineral powder is calculated according to formula (0349-3), ** to 0.1.

式中：MBVF——值(g/kg)，表示每千克0~0.15mm粒級或礦粉試樣所消耗的克數(shù)；m1—試樣質(zhì)量(g)；V1—加入的溶液的總量(mL)

★細集料中含泥量或礦粉含量計算和評定按T0333的方法進行。

In the formula: MBVF——methylene blue value (g / kg), which represents the grams of methylene blue consumed per kilogram of 0 ~ 0.15mm particle size or ore powder sample; m1—sample mass (g); V1— Total amount of methylene blue solution added (mL)

★ The calculation and evaluation of mud content or mineral powder content in fine aggregate shall be carried out according to the method of T0333.

七，石粉含量測定儀注意事項：

本儀器供電為220V 50Hz，用戶電源電壓超過240V或低于180V時必須考慮配穩(wěn)壓電源，否則會對轉(zhuǎn)速產(chǎn)生影響。

Seven, matters needing attention of stone powder content analyzer:

The power supply of this instrument is 220V 50Hz. When the user's power supply voltage exceeds 240V or lower than 180V, a regulated power supply must be considered, otherwise the speed will be affected.