Big gear ring connecting structure of barium sulfate raw material calcining furnace

Abstract

The invention discloses a big gear ring connecting structure of a barium sulfate raw material calcining furnace. In a working process, a rotary kiln needs to carry out rotational motion; a retaining ring is fixedly mounted at the lower end of the rotary kiln; one section of a cylindrical gear sleeves the retaining ring in an idle manner; the other end of the cylindrical gear is connected to guide rods; the guide rods slide in axial guide slots; dovetail-shaped guide rods are mounted inside the cylindrical gears; and the dovetail-shaped guide rods are fitted to dovetail-shaped guide slots. Under action of external driving force, the cylindrical gear is used for transmitting power to the dovetail-shaped guide rods which drive the rotary kiln to rotate through the dovetail-shaped guide slots; if the rotary kiln has axial deformation, the guide rods can compensate the axial deformation in the axial guide slots, and therefore, the big gear ring connecting structure can solve the problems that radial beat eccentricity exceeds standards and vibration is increased as a result of radial uneven dislocation in an operation process of the cylindrical gear.

Description

technical field [0001] The invention relates to an elastic coupling for transmitting rotary motion, in particular to a large ring gear connection structure of a calciner with axial and radial deformation compensation capabilities. Background technique [0002] Barium sulfate is widely used in tanning, papermaking, mineral processing, dye production and other fields. At present, the mature industrial barium sulfate production methods include high-temperature pulverized coal reducing mirabilite method and caustic lye absorbing by-product hydrogen sulfide method. However, in actual production, The pulverized coal reduction Glauber's salt method has the advantages of simple process equipment, easy operation and control, low requirements for raw and auxiliary materials and low production cost. Among the barium sulfate production units built in my country, 95% use the pulverized coal reduction Glauber's salt method. The process of this method mainly includes material preparation, ...

AI Technical Summary

Problems solved by technology

The structure of the device is relatively complicated, and only the radial compensation of the deformation of the rotary kiln is considered. It is not known that the axial compensation of the rotary kiln is also a problem that cannot be ignored when the heat changes significantly. The influence of gear deformation on gear meshing comes, so the practicability is not strong, which limits its scope of use

[0006] To sum up, the furnace body of the traditional rotary kiln has the problem of radial shrinkage and expansion caused by temperature changes, which easily leads to uneven radial displacement, which makes the radial runout of the large ring gear exceed the standard during operation, and vibration Increase, directly affect the overall safe operation of the calciner and other defects

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