Spraying Device Mobile Deflector Prevents Wet Product Blockages
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Solution Overview
Problem
Agricultural machines face blockages and reduced spraying efficiency when dealing with wet products due to accumulation at the ejection opening, leading to insufficient ejection distance and potential blockages, especially when equipped with chopping functions.
Innovation Solution
An active and mobile deflector organ is positioned at the rim of the ejection opening to redirect products into the main air stream, preventing accumulation and enhancing kinetic energy for effective ejection, without additional chopping functions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the machine processes wet products, then the product is heavier and tends to accumulate at the ejection opening, but this causes blockages and reduces ejection distance
Solution Approach 1:
A mobile deflector organ is introduced as an intermediary element between the product stream and the ejection opening. This deflector actively redirects wet products into the main air stream, preventing direct contact with the ejection opening rim where blockages occur, while still enabling successful ejection of the heavier wet material
Solution Approach 2:
The deflector organ is designed to be mobile rather than fixed, allowing it to adapt its position dynamically. This mobility enables the deflector to optimize its positioning for different product types and moisture levels, maintaining effectiveness in preventing blockages while accommodating variations in product characteristics
2Speed
If the rotary spraying organ rotates at high speed for shredding, then the ejection distance increases, but the machine cannot effectively distribute products at the foot of the machine
Solution Approach 1:
The turbine rotation speed is made dynamically adjustable rather than fixed, allowing operators to optimize speed based on the desired distribution pattern. High speeds achieve long-distance ejection for shredding applications, while reduced speeds enable effective distribution at the foot of the machine, with the deflector organ compensating for any accumulation issues at lower speeds
3Ease of manufacture
If the counter-cutter position is adjusted to chop wet products, then the chopping function improves, but the product accumulates at the recycling zone and blocks the ejection opening
Solution Approach 1:
The mobile deflector serves as a mediator between the chopping zone and the ejection opening. It intercepts chopped wet products before they can accumulate at the ejection opening rim, redirecting them into the main air stream for successful ejection, thereby maintaining both chopping effectiveness and operational continuity
Solution Approach 2:
The deflector organ performs preliminary redirection of products before they reach the problematic accumulation zone. By intercepting and redirecting wet products early in their trajectory, the system prevents blockage formation before it occurs, maintaining continuous operation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces the risk of blockages and increases the ejection distance of wet products, broadening the range of treatable products by ensuring they are deflected into the main stream, thus improving the operational efficiency of the spraying device.
Implementation Method 1
ejected from the casing via the peripheral lateral opening under the effect of centrifugal force (and therefore of the movement imparted thereby) and of the air stream generated by the rotation of the vanes
Implementation Method 2
radial vanes designed to impel the products in order to eject them through the opening into the spout, by forming a material jet directed substantially along the median axis of the spout portion adjacent to the opening
Data Source
AI summary
A device for spraying bulk or piecemeal products includes a casing with a rotary spraying organ and a lateral ejection opening prolonged by a spout. The rotary organ includes radial vanes designed to form a material jet directed along the axis of the spout, with generation of a carrier air stream. The ejection opening is provided with a bounding rim disposed on that side of the opening which is last to be reached by the outer peripheral ends of the vanes in the course of their rotation during operational functioning of the device. The spraying device also includes an active and mobile organ, designed for directing the products that come into contact with it through the opening, into the spout and substantially into the jet of ejected material. The active and mobile organ is disposed in the region of the rim.