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YZF-2A cement autoclave

1、 Overview of cement autoclave:

Cement stability autoclave is a product developed according to the requirements of the national standard GB / t750-1992 "test method for cement autoclave stability" for test equipment. The cement soundness autoclave is suitable for measuring the uneven change of cement volume caused by the hydration of periclase, such as Portland cement, ordinary portland cement, slag Portland cement, pozzolanic Portland cement and fly ash Portland cement. It is also suitable for other cement products specified to adopt this standard. Cement stability autoclave is a special instrument used by cement production units, building materials research institutes, colleges and universities and construction engineering quality inspection departments to determine the adverse effect of MgO (magnesium oxide) in cement on cement stability.

2、 Structure and principle of cement autoclave:

The main parts of cement stability autoclave are mostly made of high-quality stainless steel, which can withstand high-temperature and high-pressure saturated steam. A pressure indicator made of stainless steel, a safety valve and two vent valves are installed on the kettle cover. The kettle body is installed in the barrel shell, and two heating resistors are installed at the lower part of the outer side to heat the kettle body and produce water vapor; The bottom pipe is connected with the electric contact pressure gauge, which is matched with the electrical control system to control the pressure in the kettle within the set range. The upper part of the barrel shell is provided with a ventilation ring, the lower part is provided with a ventilation disc to block or open the air around the kettle body, and the lower part is equipped with an exhaust fan to cool the exhaust air after the test. The panel of the control box is equipped with a main power switch, three keys of start, stop and fan, four indicator lights of operation, heating, fan and stop, and a digital display time relay for timing.

3、 Technical parameters of cement autoclave:

1. Inner diameter of kettle body: 160mm

2. Kettle volume: 0.0085m3

3. Maximum working pressure: no more than 2.5MPa

4. Standard pressure rise time: 60-120 minutes, the pressure in the pot rises to 2.0MPa (equivalent to the temperature in the kettle is 216 ℃)

5. The opening pressure of the safety valve is 2.0-2.3mpa, which can be adjusted within the range

6. Fluctuation range of automatic pressure control: no more than ± 0.05Mpa

7. Rated working power: 220V

YZF-2A水泥壓蒸釜

一、水泥壓蒸釜概述：

水泥安定性壓蒸釜是依據(jù)國(guó)家標(biāo)準(zhǔn) GB/T750-1992《水泥壓蒸安定性試驗(yàn)方法》對(duì) 試驗(yàn)設(shè)備的要求而研制的產(chǎn)品。該水泥安定性壓蒸釜適用于測(cè)定硅酸鹽水泥、普通硅酸鹽水泥、礦 渣硅酸鹽水泥、火山灰質(zhì)硅酸鹽水泥、粉煤灰硅酸鹽水泥等主要因方鎂石水化可能造成 的水泥體積不均勻變化，也適用于其他指定采用本標(biāo)準(zhǔn)的水泥產(chǎn)品。水泥安定性壓蒸釜是水泥生產(chǎn)單位、 建材科研院所、大專(zhuān)院校和建工質(zhì)檢部門(mén)用于測(cè)定水泥中 MgO（氧化鎂）對(duì)水泥安定性產(chǎn)生不良影響的專(zhuān)用儀器。

二、水泥壓蒸釜結(jié)構(gòu)與原理：

水泥安定性壓蒸釜主要零部件多采用優(yōu)質(zhì)不銹鋼材料制造，能耐高溫、高壓飽和水蒸氣。釜蓋上 裝有一個(gè)由不銹鋼制成的壓力指示表、一個(gè)安全閥、二個(gè)放氣閥。釜體安裝在筒殼內(nèi)， 其外側(cè)下部裝有兩個(gè)加熱電阻，用于向釜體加熱，制造水蒸氣；底部道管與電接點(diǎn)壓力 表相連，電接點(diǎn)壓力表與電器控制系統(tǒng)配合，用于將釜內(nèi)壓力控制在設(shè)定范圍。筒殼的 上部設(shè)有通風(fēng)環(huán)，下部設(shè)有通風(fēng)盤(pán)，用于阻斷或開(kāi)通釜體周?chē)目諝猓谙虏堪惭b有排 風(fēng)扇，用于結(jié)束試驗(yàn)后的排風(fēng)降溫。 控制箱面板設(shè)有電源總開(kāi)關(guān)，啟動(dòng)、停止、風(fēng)機(jī)三個(gè)鍵和運(yùn)行、加熱、風(fēng)機(jī)、停止 四個(gè)指示信號(hào)燈，以及用于計(jì)時(shí)的數(shù)顯時(shí)間繼電器。

三、水泥壓蒸釜技術(shù)參數(shù)：

1、釜體內(nèi)徑：160mm

2、釜體容積：0.0085m3

3、最大工作壓力：不大于2.5MPa

4、標(biāo)準(zhǔn)升壓時(shí)間：60－120分鐘鍋內(nèi)壓力升至2.0MPa（相當(dāng)釜內(nèi)體溫為216℃）

5、安全閥開(kāi)啟壓力2.0－2.3MPa，范圍內(nèi)可調(diào)

6、壓力自動(dòng)控制的波動(dòng)范圍：不大于±0.05MPa

7、額定工作電力：220V