SU1019197A1 - Unit for drying chemical products - Google Patents

Description

The invention relates to a technique for drying chemical dispersed materials and may find application in the chemical and other industries. The known dryer, comprising an annular chamber, gas supplying devices and chemical products, a system for cooling the walls of the drying chamber and a loading opening 1. The disadvantages of the known dryer are high energy consumption and complexity of the design. Closest to the invention to the technical essence is a plant for drying chemical products, comprising a vortex chamber with a coaxially installed steam exhaust pipe and tangential nozzles for entering the heat transfer fluid, each of which is divided by a partition into an external and internal channels, a separator connected to the vortex chamber, and exhaust manifold outlet 2. The disadvantages of the known installation are high energy consumption and the entrainment of the dried product. The aim of the invention is to reduce energy consumption, reduce entrainment of the dried product with spent coolant and increase resource. This goal is achieved by the fact that in an installation for drying chemical products containing a vortex chamber with a coaxially installed steam discharge pipe and tangential nozzles of the heat carrier inlet, each of which is divided by external and internal channels, a separator connected to the vortex chamber and the nozzle the withdrawal of the spent heat carrier, the vortex chamber is externally equipped with two annular manifolds, the inner one of which is connected to the external channel of each nozzle of the input of the heat exchanger, c. external - to the internal channel of this nozzle, while the nozzle of the outlet of the heat-transfer fluid is installed along the axis of the steam outlet; Rmby share, ft, 1 shows an installation for suki chemical products, general view; and FIG. 2 shows section A-A in FIG. 1. Ustaneka contains a vortex ka.-... ru 1 with a loading nozzle 2 and t in the natural nozzles 3 of the input coolant, each of which is divided by a partition C on the outer 5 and inner 6 channels, the separator 7, inside which is installed the divider 8, and There is a discharge port 9 at the bottom. The vortex chamber 1 has two annular collectors — internal 10 and external 11, the internal collector 10 being connected to the external channel 5, and the external collector 41 - to the internal channel 6. Inside the vortex chamber 1, a steam exhaust pipe 12 is installed.slits 13, which is situated axially exhaust pipe 14 teplonosigel to form annular channel 15. Collectors 10 and 11 have respective valves 16 and 17. The installation operates as follows. The vortex: chamber 1 is fed through the loading nozzle 2 with a wet chemical product, and into the collectors 10 and 11 - the coolant entering the external channel 5 and cooling the inner shell to a temperature slightly below the melting point of the product, which reduces the product sticking to the walls, and then , exit from channel 5, the coolant at high speed prevents contact of the product with the shell. The heat carrier passing through channel 6 breaks the jet of chemical product. By its parameters, this coolant is disconnected from the coolant leaving channel 5. When the coolant comes in contact with a wet chemical product, moisture evaporates, the amount of which in chamber 1 increases as it is removed from the product, the tangential entry of coolant into chamber 1 creates a spiral motion in it gas pbtoka and centrifugal effect, according to which the separation of the gas flow by density occurs: water vapor is mainly discharged through the annular channel 15, which comes through the slots 13, and the main part of the coolant is discharged through the nozzles 1. The dried product is removed through the separator 7 and the nozzle E. Thus, the proposed installation allows us to separate the flow of the spent heat carrier to a relatively dry and wet.

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Claims (1)

INSTALLATION FOR DRYING CHEMICAL PRODUCTS j containing a virch chamber with a coaxially mounted steam outlet pipe and tangential coolant inlet nozzles, each of which is divided by a partition into external and internal channels, a separator connected to the vortex chamber, and a spent coolant outlet nozzle that, in order to reduce energy consumption, reduce the entrainment of the dried product with spent heat carrier and increase the resource, the vortex chamber is equipped with two ring collectors from the outside, the inner one is connected to the external channel of each coolant inlet pipe, and the outer one is connected to the internal channel of this pipe, and the spent coolant outlet pipe is installed along the axis of the steam pipe.