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Energy Saving

Kondensat Langsung Dengan Sistim Kembali ASTW

(Tangki Penyimpanan) dari ASTW

Kondensat Langsung Dengan Sistem Kembali

Menghemat sampau 12% dari konsumsi minyak dari ketel dan menghemat penggunaan air dan bahan kimia lain nya.

· Untuk semua tipe pengering, pemasak dan sterilisasi yang digunakan untuk pemanasan tidak langsung.

· Sistem memompa kondensat panan yang ditekan langsung ke ketel di sistem yang tertutup dan tanpa kehilangan kilasan uap.

· Contoh (lihat grafik ) : pengering yang beroperasi pada tekanan uap 6 bar akan kehilangan 12% kilasan uap setelah perangkap uap ketika kondensat mendidih untuk mengurangi suhu dari 164 ˚ C sampai 100 ˚ C.

· Operasi otomatis, jika pompa berhenti, sistem akan secara otomatis beralih ke operasi perangkap uap normal. Satu atau beberapa instalasi ketel.

Sistem ini terdiri dari unit yang telah tersusun rapi dan terdiri dari:

· Tangki penerima (bersertifikan untuk 10 bar).

· Pompa suhu dan tekanan tinggi.

· Pengendali arus dan katup pengatur level.

· Sistem by pass otomatis menggunakan perangkap uap.

· Panel kontrol elektrik.

· Katup pengaman untuk level air tinggi untuk ketel.

· Termasuk instalasi dan pelaksanaan pemasangan (commissioning)

· Berat 1,275 kg. Volume 8.0 m3.

· Dimension: W2.0 x D2.0 x H1.90(m.)

Waste Heat Evaporator (WHE) for fishmeal plants

The only purpose of the WHE is to save energy and lower the steam consumption.

The WHE can reduce the steam consumption about 50 %, this is important if the boiler fuel is expensive, like diesel oil, heavy fuel oil or natural gas.

The WHE is mostly used for OFP = Oily Fish Plants with cooker and press where the stick water and fish oil is separatedanyway, but can also be used for lean fish to save energy. The WHE come in 1-stage if the stick water is little (tuna waste) and 2-stage if the stick water is higher (sardine). Calculation will show what is needed.

The Rotary Disc Drier is a drier for solids = fishmeal. The WHE is a drier for stick water, coming from the decanter and separator.

The stick water contains dissolved protein (like sugar is dissolved in water), and this protein is valuable and must be recovered for higher % protein and better price also called whole fishmeal. If the stick water is thrown away it is very polluted.

The WHE does not use steam from the boiler, but use the wasted vapor from the disc drier that would normally be thrown away.

The disc drier will evaporate water at normal boiling point 100 deg C. The WHE will evaporate water under vacuum where the boiling point is only 60 deg C. (that is the whole secret with the WHE = vacuum!)

The design of a WHE is basically a stainless heat exchanger with tubes, a circulation pump for the stick water which is pumped around and around, a vacuum pump plus two in and out feed pumps, and a condenser.

When the WHE has run for a while, the stick water will concentrate to a thick syrup that is pumped into the drier and mixed with the fishmeal.

WHE requires skilled operators and good maintenance and must often be cleaned by flushing with caustic soda.

The WHE is quite expensive and can be installed after the OFP fishmeal plant is installed.