Bulk material distributing device used for lime kiln

Abstract

The invention relates to the field of calcium hydroxide production equipment, and particularly relates to a bulk material distributing device for a lime kiln. The bulk material distributing device comprises a crushing barrel fixed in an opening at the top wall of a lime kiln along a vertical direction; a second motor distributed along the vertical direction is arranged at the center position of the lower end of the crushing barrel, a bulk material cone is coaxially arranged on the output shaft of the second motor, the small end of the bulk material cone is fixedly connected with the output endof the second motor, a plurality of framework plates are hinged at the large end of the bulk material cone at intervals along the peripheral direction, a flexible connecting plate with elasticity isarranged between any two adjacent framework plates, a support pillar is coaxially arranged at the large end of the bulk material cone, and electric push rods which are equal in quantity with that of the framework plates and used for pushing and pulling all the framework plates to expand or retract are arranged on the support pillar at intervals. According to the invention, limestone and coal can be uniformly distributed in the lime kiln to improve the combustion efficiency, and thus being convenient for controlling calcination quality and avoiding the phenomena of under-calcination or over-calcination.

Description

technical field [0001] The invention relates to the field of calcium hydroxide production equipment, in particular to a bulk material distributor for a lime kiln. Background technique [0002] In the production of calcium hydroxide, limestone needs to be calcined first to make lime, and then lime and water are digested to produce calcium hydroxide. The uniform distribution of limestone and coal is critical. No matter what kind of lime kiln it is, coal and limestone must be loaded into the kiln at the same time, and different particle sizes are uniformly and reasonably distributed in the kiln through material distribution, eliminating the furnace wall effect, balancing the resistance in the furnace, and striving to "fire" uniformly on the entire furnace surface . [0003] However, when the moisture content in the coal is too high to cause stacking and agglomeration, the larger coal lumps will seriously affect the uniform mixing of coal and limestone in the lime kiln, so tha...

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Problems solved by technology

[0003] However, when the moisture content in the coal is too high to cause stacking and agglomeration, the larger coal lumps will seriously affect the uniform mixing of coal and limestone in the lime kiln, so that the coal seam in the lime kiln is not uniform in tightness and ventilation. , coal combustion is incomplete, the combustion efficiency is low, and the energy consumption increases, which affects the insufficient load of the boiler and brings adverse effects on people's production

In order to overcome this problem, in the prior art, special equipment is often needed to crush the coal, and then the limestone and the broken coal are distributed layer by layer in the lime kiln, and each batch of raw materials is added in several times, which makes the structure of the whole lime kiln complex , the filling operation is discontinuous and cannot make the coal and limestone more uniformly mixed

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