經(jīng)過(guò)濃縮的高溫熔融堿依靠重力經(jīng)管道流入片堿機(jī)弧形鍋，到達(dá)一定液面后，粘在片堿機(jī)轉(zhuǎn)鼓上，轉(zhuǎn)鼓內(nèi)有循環(huán)冷卻水噴頭，熱堿在轉(zhuǎn)鼓上立即受冷后結(jié)晶，通過(guò)片堿機(jī)另一側(cè)的刮刀刮成厚度為0，8~1，2mm的片堿。在開(kāi)車(chē)投料之前，調(diào)整刮刀與轉(zhuǎn)彭的間隙，要求為0，2mm左右;檢查循環(huán)冷卻水的流通情況，視生產(chǎn)負(fù)荷和片堿成片情況，調(diào)整循環(huán)水的流量。

The concentrated high-temperature molten alkali flows into the arc-shaped pan of the flake soda machine through the pipeline by gravity. When it reaches a certain liquid level, it sticks to the drum of the flake soda machine. There is a circulating cooling water nozzle in the drum. The hot alkali crystallizes immediately after cooling on the drum and scrapes into flake soda with a thickness of 0, 8~1, 2mm through the scraper on the other side of the flake soda machine. Before start-up and feeding, adjust the clearance between the scraper and the rotary table, which is required to be about 0, 2mm; Check the circulation of circulating cooling water, and adjust the flow of circulating water according to the production load and flake alkali production.

循環(huán)水流量過(guò)小，轉(zhuǎn)鼓不能及時(shí)降溫，會(huì)在轉(zhuǎn)鼓上形成熔融堿，此時(shí)，應(yīng)立即開(kāi)大循環(huán)水量或者搖下弧形鍋，待轉(zhuǎn)鼓冷卻，轉(zhuǎn)鼓上的熔融堿結(jié)晶后，用刮刀刮下，再慢慢調(diào)小水量或搖上弧形鍋，以防因熔融堿刮下后，再結(jié)晶堵塞片堿輸送及包裝系統(tǒng)。

If the circulating water flow is too small, the drum can not be cooled in time, and molten alkali will form on the drum. At this time, immediately increase the circulating water volume or shake down the arc-shaped pot. After the drum is cooled and the molten alkali on the drum crystallizes, scrape it off with a scraper, and then slowly reduce the water volume or shake up the arc-shaped pot, so as to prevent the transportation and packaging system of flake alkali from being blocked by recrystallization after the molten alkali is scraped off.

循環(huán)水流量過(guò)大，會(huì)使熔融堿在剛接觸轉(zhuǎn)鼓時(shí)就立即被冷卻結(jié)晶，在轉(zhuǎn)鼓，上形成大片堿塊，此時(shí)，應(yīng)逐漸關(guān)小循環(huán)水量，以防大片堿塊進(jìn)入片堿輸送及包裝系統(tǒng)形成“架橋”現(xiàn)象，堵塞片堿輸送和包裝通道。另外，應(yīng)及時(shí)注意片堿機(jī)刮刀的使用情況如果刮刀磨損嚴(yán)重，將影響片堿成片和生產(chǎn)能力，應(yīng)及時(shí)更換。

If the circulating water flow is too large, the molten alkali will be cooled and crystallized immediately when it contacts the drum, and large alkali blocks will be formed on the drum. At this time, the circulating water volume should be gradually reduced to prevent large alkali blocks from entering the flake alkali conveying and packaging system to form a "bridge" phenomenon, blocking the flake alkali conveying and packaging channels. In addition, pay attention to the use of the scraper of the flake alkali machine. If the scraper is seriously worn, it will affect the flake alkali production and production capacity, and it should be replaced in time.

此外由于設(shè)計(jì)上的不足，刮刀的使用壽命很短；片狀KOH的苛性難免使整個(gè)生產(chǎn)系統(tǒng)出現(xiàn)設(shè)備、管道及水、電、氣等方面的故障，停車(chē)的頻率較高。接盛于桶中的堿不但已凝固成堿塊，而且因高溫時(shí)接觸空氣，排放管道和接盛容器受到氧化，使接盛的固堿呈黑色，且雜質(zhì)含量大，只能是廢堿。

In addition, due to the lack of design, the service life of the scraper is very short; The causticity of flake KOH inevitably causes equipment, pipeline, water, electricity, gas and other failures in the whole production system, and the shutdown frequency is high. The alkali contained in the barrel has not only solidified into alkali blocks, but also the discharge pipe and container are oxidized due to contact with air at high temperature, so that the solid alkali contained in the barrel is black and has a large amount of impurities, so it can only be waste alkali.

另外，氫氧化鉀熔融堿冷卻成片過(guò)程停車(chē)后系統(tǒng)進(jìn)入了空氣，每次再開(kāi)車(chē)必然先產(chǎn)出大量的黑堿。以前為減少停車(chē)次數(shù)，曾經(jīng)帶料處理故障，即在不停止投料的情況下，處理熔鹽爐、包裝秤故障等，尤其是不停車(chē)更換刮刀，需幾個(gè)小時(shí)才能換好。

In addition, after the potassium hydroxide molten alkali cooling process stops, the system enters the air, and a large amount of black alkali will be produced first after each start-up. In the past, in order to reduce the number of stops, we used to deal with the faults with materials, that is, to deal with the faults of molten salt furnace and packaging scale without stopping feeding, especially to replace the scraper without stopping. It takes several hours to replace it.

這期間因無(wú)刮刀不能制片，長(zhǎng)時(shí)間大量排放的熔融堿無(wú)法再用桶接盛，只能排人地溝，造成很大的浪費(fèi)，同時(shí)因排放時(shí)產(chǎn)生的堿蒸氣溫度高、腐蝕性強(qiáng)，經(jīng)常損壞主要設(shè)備和儀表，并傷害操作人員的皮膚和呼吸道；形成的堿性廢水污染環(huán)境，須大量的酸去中和。

During this period, the film cannot be produced without a scraper, and the large amount of molten alkali discharged for a long time cannot be collected in barrels, and can only be discharged into the trench, resulting in great waste. At the same time, the alkali steam generated during discharge has high temperature and strong corrosivity, which often damages the main equipment and instruments, and damages the skin and respiratory tract of operators; The formed alkaline wastewater pollutes the environment and needs to be neutralized with a large amount of acid.

以上就是介紹的關(guān)于氫氧化鉀熔融堿冷卻成片過(guò)程的相關(guān)內(nèi)容，您可以作為參考使用，當(dāng)然如果您想了解更多就來(lái)關(guān)注我們www.jsyjs.net吧！

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