US 5,746,983 A · Apparatus and process for calcification

Abstract

Improved device for slaking of lime, comprising a slaker (10) which is connected to a lime silo (24) and a conveyor (30) for supply of lime, equipped with a motor driven mixer (14) with a specially designed mixing organ. Through pipeline with exit valve the slaker is connected to a distribution tank. An improved process for slaking of lime, using the above-mentioned device and process steps comprising transfer of lime under conveyor (30) from the silo (24) for feeding in weighed quantities into the slaker (10), feeding of weighed water quantities into the slaker for treatment in intervals by means of the mixer (14) and subsequent transfer of the finished lime mixer into the distribution tank. The slaking process is automated and takes place under constant supervision, and the slaking device's regulating valves are controlled by respective, connected limit switches.

Claims10

Dependent claims

In an improved automatically driven, cylindrical lime slaking apparatus for interval manufacture of slaked lime comprising a lime silo for storage of dry, unslaked lime, a cylindrical slaker capable of receiving dry lime from said silo and mixing said lime with water in a hydration process, a conveyor mechanism joining the silo and slaker for transfer of dry lime from said silo to said slaker, and a water supply system supplying water to said slaker for the hydration process and for flushing said slaker between intervals of lime slaking, the improvement comprising mounting said slaker on one or more weighing cells and providing an automatic control means whereby the weight of lime and water introduced into said slaker and making up a slaking mixture are measured and provided to said control means to control the operation intervals of said slaker, conveyor mechanism and water supply system.

An improved interval lime slaking apparatus comprising a lime storage silo, a slaker, a conveyor mechanism connecting said silo and said slaker, and an automatic control means;

wherein said slaker comprises a generally cylindrical body portion and a conical bottom section terminating in a substantially level bottom having a diameter substantially one half the diameter of the body portion, a water jet dust suction and overflow mechanism, a water supply system including a plurality of water jets within said slaker and automatically operable water flow control valves regulated by said automatic control means, a thermal detection and monitoring element in said slaker and connected to said automatic control means, and a mixing apparatus, said slaker being mounted on at least one weighing cell connected to said automatic control means whereby quantities of lime and water introduced into said slaker are measured for each interval of slaking, said measurements being provided to said automatic control means whereby operation of said apparatus is regulated.

Dependencies are inferred from the claim text.

Apparatus and process for calcification

Life of this patent

Apparatus and process for calcification

Life of this patent

Abstract

Claims10