For the efficient operation of a walnut processing plant, it is important to select equipment that is ideally suited to the purpose of processing and the quality of the walnut.
First of all, we determine the volumes of future processing (400, 800, 1600 and more kg of walnuts per day) and the result that we want to get (processing into a whole kernel or the kernel will be supplied to confectionery factories and the whole kernel is not important). Next, you need to understand the quality of the nut that will be processed – varietal or non-varietal (from private farms); with a thick shell, 50/50 or when purchasing the walnut will be carefully selected; calibrated or different sizes, etc.
First of all, we determine the volumes of future processing (400, 800, 1600 and more kg of walnuts per day) and the result that we want to get (processing into a whole kernel or the kernel will be supplied to confectionery factories and the whole kernel is not important). Next, you need to understand the quality of the nut that will be processed – varietal or non-varietal (from private farms); with a thick shell, 50/50 or when purchasing the walnut will be carefully selected; calibrated or different sizes, etc.
For industrial processing in order to obtain the maximum amount of whole kernel, it is desirable to have a calibrator. It can be linear or rotary (drum). The main differences are in productivity and the fact that the linear calibrator is easily reconfigured for the calibration of other crops with a size of 0.5-5 cm, and the rotary one has fixed holes.
All industrial nutcrackers are of the conical type. Their main differences are in productivity and in the way of feeding the walnut into the cracking element (chain or vibratory feeding).
Sorting equipment – aspiration column, vibrating sieve and vibrating sieve with aspiration.
An aspiration column is a device that separates the shell, membranes and debris from the walnut kernel with an air stream.
Walnut kernel separating machine i vibrating sieve with aspiration raise many questions. Let’s dwell on them in more detail.
A vibrating sieve is an equipment that sorts the kernel into fractions (by size). As a standard, sorting occurs at 1/2, 1/4, 1/8 and undershoot, the holes are respectively 11, 16, 45/20 mm. Depending on the client’s wishes, the size of the holes can be any. For example, a vibrating sieve can sort by 1/2, mix and undershoot.
The vibrating sieve can be used for sorting both the finished kernel (without shell) and for sorting the cracked walnuts immediately after the nutcracker. In the second case, each fraction after the vibrating sieve is sent to the aspiration column, where the kernel is separated from the shell.
Wibracyjne sito z aspiracją is an installation that simultaneously sorts the kernel into fractions and separates the kernel from the shell, that is, it is used immediately after the nutcracker. The main difference and advantage over an ordinary vibrating sieve is that for each fraction there is a separate aspiration (only 3 pcs). It turns out that a vibrating sieve with aspiration replaces not even two, but four installations, speeds up the sorting process, prevents unnecessary movements of the kernel and its damage, and reduces the number of workers and wages costs.
Sorting also occurs at 1/2, 1/4, 1/8 and undershoot, and the standard hole size is 11, 16, 45/20 mm. The dimensions of the holes can be changed depending on the client’s wishes.
The capacity of the vibrating sieve with aspiration can be 200, 300 i 500 kg/h.
Additional equipment – lifting conveyors, inspection and bulkhead tables, are selected for reasons of production automation and optimization of personnel work.