Spreading device

Abstract

The present invention relates to a spreading device for spreading agricultural slurry onto farmland to prevent the distribution of slurry in thick lines. The slurry spreading device comprises a spreading portion 2 having a shape adapted for enabling slurry runoff and spreading slurry, and an applicator engaging portion 10 having attachment means for attaching the slurry spreading device to a dribble bar slurry applicator. The spreading portion may be adjustable between a first position wherein the spreading portion is positioned opposite the outlet of the applicator to intercept and spread slurry and a second position wherein the spreading portion is positioned away from the outlet such that it does not intercept and spread the slurry. Also disclosed is a dribble bar (40, figure 9) for a distributing slurry onto farmland, the dribble bar comprising an outlet hose (42) and the slurry spreading device. The dribble bar may have a plurality of outlet hoses and a slurry spreading device fixed to each hose.

Description

The present invention relates to a device for spreading liquid. In particular to a slurry spreading device for use on a slurry applicator. Background to the Invention Slurry spreading plays a vital role in agricultural practices, especially on farms where livestock waste needs to be effectively managed. One of the most common methods of spreading slurry is the splash plate method. This method involves propelling high-pressure slurry through a tube onto a wide distribution plate, resulting in a scattering effect over the land. However, this method poses a significant challenge due to the exposure of a large surface area of the slurry to the air, leading to noxious odours and increased volatilisation of ammonia and subsequent higher emissions. The consequences of elevated ammonia emissions include detrimental effects on air quality, acidification, and eutrophication. To address the concerns of emissions and environmental impact associated with slurry spreading, regulatory measures have been introduced, such as the mandatory implementation of Low Emissions Slurry Spreading Equipment (LESSE) on farms. The dribble bar method has emerged as the most commonly used approach for Low Emissions Slurry Spreading (LESS), demonstrating positive environmental benefits by reducing pollution to the air and waterways. However, this system presents several challenges that need to be overcome to optimize its efficiency and effectiveness. One of the significant issues with the dribble bar system is the distribution of slurry in thick lines directly on top of the grass. This thick layer can smother and harm the grass, adversely affecting pasture quality and growth. Additionally, as the slurry dries under sunlight, it solidifies and adheres to the grass. Over time, as the surviving grass continues to grow, it pushes the dried slurry material upward. This poses difficulties during the harvesting process, as the dried slurry is collected along with the crop, leading to poor fermentation when stored in facilities such as bales or silage pits. The presence of dried slurry in the harvested crop not only diminishes the overall quality of winter feed but also introduces contamination and toxins. This contamination can have detrimental effects on the health of animals consuming the feed, potentially requiring the administration of toxin binders to maintain their well-being. To address these challenges and enhance the efficiency of slurry spreading, there is a clear need for an innovative spreading device that enables the spreading of slurry while minimizing smothering and drying of the grass. Simultaneously, it is crucial to ensure the integrity and quality of the harvested crop. The present invention seeks to provide a solution that optimizes the slurry spreading process, promotes better pasture growth, and ensures the availability of high-quality, uncontaminated winter feed for livestock. According to the invention, there is provided a device for spreading slurry, the slurry spreading device comprising: a spreading portion having a shape adapted for enabling slurry runoff and spreading slurry and; an applicator engaging portion having attachment means for attaching the spreading device to a slurry applicator such as a dribble bar. In a preferred embodiment, the spreading portion has an apex, a base and a sloping surface extending between the apex and the base, wherein the width of the spreading portion increases away from the apex and / or towards the base. Advantageously, the spreading device intercepts the flow of slurry as it exits the applicator outlet and provides an increasing surface for the slurry to flow over. Thereby, the spreading device encourages the slurry to spread over the increasing surface and eventually over the edge of the spreading device that extends around the perimeter of the base. This provides an effective method for spreading slurry without lines of concentrated slurry being applied to the land whilst also preventing harmful emissions from being deposited into the environment. Preferably, the sloping surface extends radially between the apex and the base. Advantageously, slurry contacting the spreading portion can spread radially as it flows towards base before being distributed onto the ground / farmland. Preferably, the sloping surface comprises side portions wherein the distance between the side portions increases towards the base and / or away from the apex. Advantageously, in use, slurry travels over the sloping surface towards the base, via gravity and / or via momentum from low-pressure distribution from a slurry applicator. As the slurry travels over the widening surface, it spreads to cover the widening surface. Thus, the slurry is distributed over a widened surface area of the ground. This is in comparison to thick lines of slurry being distributed directly from a slurry applicator such as a dribble bar. Preferably, the sloping surface comprises a central region sloping downwardly from the apex towards the leading end of the spreading device, with the side portions extending from either side of the central region. Ideally, the side portions are symmetrical. Advantageously, this promotes equal distribution of slurry over the spreading portion and thereby onto the ground below. Thus, this further prevents concentrated lines of slurry from being distributed onto the ground. In one embodiment, the spreading device comprises a leading end and a trailing end. Preferably, the width of the spreading portion increases away from the leading end and / or trailing end. Ideally, where the spreading portion comprises a base, the width of the base increases away from the leading end and / or trailing end. Advantageously, this further enhances spreading of the slurry prior to it being distributed onto the ground. Thus, this further increases the surface area of ground over which the slurry is distributed, thereby preventing thick layers of slurry from being deposited on any one area of ground. Ideally, where the spreading portion comprises a sloping surface, the distance between side portions of the sloping surface increases away from the leading end and / or trailing end. Preferably, where the spreading portion comprises a base, the spreading portion comprises a base edge which extends around the perimeter of the base over which slurry runs before falling to the ground below. Preferably, the base edge comprises a leading portion and a trailing portion. In a preferred embodiment, the applicator-engaging portion extends upwardly from the spreading portion, most preferably at a trailing end of the spreading device. Advantageously, the applicator-engaging portion does not obstruct slurry flow over the spreading device. Preferably, the spreading device comprises an intermediate sloping portion extending between the applicator-engaging portion and the spreading portion. Advantageously, this prevents slurry from getting trapped in a joint between the applicator-engaging portion and the spreading portion. Preferably, the apex is rounded, pointed or flat. Preferably, the sloping surface is curved. Ideally, the sloping surface curves downwardly from the apex toward the base. Ideally, the sloping surface extends radially and curves downwardly from the apex toward the base. This spreads the slurry more evenly compared to other shapes. Preferably, the applicator-engaging portion is configured to engage with and / or attach to a wall at the outlet of the slurry applicator such as a wall of the hose of a dribble bar, most preferably with an external portion of the slurry applicator. Advantageously, the applicator engaging portion does not block, impede or reduce the flow of slurry inside the slurry applicator. Preferably, the spreading portion and / or longitudinal axis of the spreading portion extends parallel or substantially parallel to the surface on which the slurry is being applied. Preferably, the spreading portion extends transverse, most preferably perpendicular, to the applicator-engaging portion. Ideally, the longitudinal axis of the spreading portion extends perpendicular to or substantially perpendicular to the applicator-engaging portion. By substantially perpendicular, we mean at an angle between 80° and 100°, in particular between 85° and 95°, most preferably between 87° and 93°. Advantageously, the applicator-engaging portion does not impede the flow of slurry off the spreading device and / or onto the ground. Further advantageously, this ensures that the spreading portion extends transverse to or substantially perpendicular to the flow of slurry as it exits the outlet of the slurry applicator. This enables the spreading portion to intercept the slurry and spread the slurry prior to it falling onto the ground. Preferably, in use, the applicator-engaging portion is attached to a wall of the outlet hose, pipe or tube of the slurry applicator such that the spreading portion extends across the outlet to intercept slurry as it exits the outlet or just after it exits the outlet. Preferably, in use, the longitudinal axis of the applicator engaging portion extends parallel to or substantially parallel to the longitudinal axis of the outlet hose, pipe or tube of the slurry applicator. For example, when in use on a dribble bar, the applicator-engaging-portion extends parallel to or substantially parallel to the outlet hose of the applicator. Preferably, the spreading device is suitable for use with, and as an attachment to, a slurry applicator, most preferably a dribble bar, in particular an outlet hose of a dribble bar. Preferably, the attachment means comprises one or more apertures formed on the applicator engaging portion for receiving fixing means to fix the spreading device onto the slurry applicator. This enables the spreading device to be retrofitted onto the slurry applicator. Alternatively, or additionally, the applicator-engaging portion comprises clamps, adhesive and / or any other suitable means for attaching to a slurry applicator such as the hose of a dribble bar. Ideally, the spreading device is for use with a low emissions slurry applicator such as slurry applicators that spread at or around ground level. In one embodiment, the spreading portion is adjustable between a first position wherein the spreading portion is positioned opposite the outlet of the applicator to intercept and spread the slurry and a second position wherein the spreading portion is positioned away from the outlet of the applicator so that it does not intercept and spread the slurry exiting the outlet. Preferably, the spreading device comprises an adjustment means for enabling adjustment of the position of the spreading portion between the first position and the second position. Ideally, the spreading portion is rotatable between the first position and the second position. In one embodiment, the spreading portion is rotatably connected to the applicator engaging portion or is directly or indirectly rotatably connectable to the slurry applicator. Alternatively, or additionally, the applicator engaging portion is rotatably connected to the slurry applicator. In one embodiment, the applicator engaging portion comprises a first member for engagement with the slurry applicator, ideally for attachment to the slurry applicator, and a second member for enabling adjustment of the position of the spreading portion relative to the outlet of the slurry applicator. Preferably, the second member is connected to the spreading portion and moveably connected, most preferably rotatably connected, to the first member. Advantageously, in use, the spreading portion can be rotated directly, or indirectly via the applicator engaging portion, away from the outlet of the slurry applicator. This means that the user can easily switch between spreading the slurry over an extended area or applying more concentrated lines of slurry. Preferably, the first member is suitable for engagement with a hose of a dribble bar. The first member preferably attaches to the hose via a fixing means such as a screw or bolt. Ideally, the second member is connected to the first member via fixing means and is rotatable around that fixing means. The fixing means connecting the first and second members may be the same fixing means connecting the first member to the slurry applicator or it may be different. In one embodiment, the applicator engaging portion comprises a first member for engaging with the hose of a dribble bar and a second member extending from the spreading portion, wherein the second member is rotatably connected to the first member to enable adjustment of the position of the spreading portion between the first position and the second position, relative to the outlet of the hose. In a preferred embodiment, the first member is curved to match the profile of the hose. For example, the first member is C-shaped or convex. Preferably, the spreading device comprises a locking means to lock the spreading portion in the first position. In one embodiment, the locking means comprises male and female connectors for example a plug on the first member and a corresponding socket on the second member. Alternatively, or additionally, the locking means may be any other suitable locking means such as a groove and protrusion or abutting means. In one embodiment, the spreading portion is semi-dome-shaped. Advantageously, this spreads the slurry more evenly compared to other shapes. In another embodiment, the spreading portion may be triangular in vertical and / or horizontal cross-sections. In yet another embodiment, the spreading portion may be any other suitable shape for enabling slurry runoff and spreading of the slurry. Preferably, the spreading portion is suitable for fanning out the slurry as it flows over the spreading portion. Preferably, all or part of the spreading device is formed from a plastics material or a composite material. Ideally, all or part of the spreading device is formed from polypropylene. Preferably, the spreading device is a one-piece device. Alternatively, the spreading device may be modular. Preferably, the spreading device is formed by injection moulding. Preferably, the spreading device has a height of approximately 75-80 mm, most preferably approximately 78 mm. Preferably, the widest portion of the spreading device is approximately between 110-115 mm, most preferably approximately 112 mm. Preferably, the depth of the spreading device from front to back and / or leading most portion of the leading end to the rearmost portion of the trailing end is approximately between 65 and 75 mm, in particular between 68 and 73 mm, most preferably approximately 71 mm. Preferably, the spreading device weighs approximately between 25-35 grams, in particular approximately between 30-32 grams, most preferably approximately 31.5 grams. Preferably, the spreading device is also suitable for spreading any liquid other than agricultural slurry or any slurry other than agricultural slurry. According to a second aspect of the invention, there is provided a dribble bar for distributing agricultural slurry onto farmland, the dribble bar comprising an outlet hose and a spreading device according to a first aspect of the invention to enable the dissemination of slurry contacting the spreading portion in a dispersed manner. Preferably, the applicator-engaging portion is fixed to the hose of the dribble bar. Preferably, the spreading portion extends transverse to or substantially transverse to the hose of the dribble bar. Ideally, in use, the spreading portion is located below the outlet of the hose and extends across the outlet of the hose. Advantageously, this enables the spreading portion to intercept slurry as it exits the outlet or just after it exits the outlet of the hose. Preferably, the dribble bar comprises a plurality of outlet hoses and a spreading device attached to each hose. Brief Description of the drawings The invention will be more clearly understood from the following description of some embodiments thereof, given by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a front view of a first embodiment of a spreading device according to an aspect of the invention; Figure 2 is a side view of the first embodiment; Figure 3 a top view of the first embodiment; Figure 4 is a perspective view of the first embodiment; Figure 5 is a perspective view of the first embodiment in use on a slurry applicator; Figure 6 is a front view of the first embodiment in use on a slurry applicator; Figure 7 is a side view of the first embodiment in use on a slurry applicator; Figure 8 is a rear view of the first embodiment in use on a slurry applicator; Figure 9 is a perspective view of first embodiment fitted to a dribble bar; Figure 10 shows an enlarged view of figure 9; Figure 11 is a perspective view of an adjustable embodiment of the invention; Figure 12 is a perspective view of a second embodiment of the invention arranged on the hose of a dribble bar slurry applicator; Figure 13 is a front view of the second embodiment wherein the spreading portion is in a first position; Figure 14 is a front view of the second embodiment wherein the spreading portion is in a second position; Figure 15 is a side view of the second embodiment; Figure 16 is a rear view of the adjustable embodiment of the invention wherein the spreading portion is in a second position. The two embodiments of the present invention will be described in detail with reference to the drawings, where like reference numerals represent like parts and assemblies throughout the several views. Detailed Description Referring to the drawings, there is shown a spreading device 1 for spreading agricultural slurry onto farmland. The spreading device has a spreading portion 2 having an apex 4, a base 6 and a sloping surface 8 extending between the apex 4 and the base 6, wherein the width (W) of the spreading portion 2 increases away from the apex 2 and / or towards the base 6 to enable the dissemination of slurry delivered from the slurry applicator in a dispersed manner. The spreading device 1 also has an applicator engaging portion 10 having an attachment arrangement 12 for attaching the spreading device 1 to a slurry applicator such as a dribble bar 40 (illustrated in figure 9). The spreading device 1 intercepts the flow of slurry as it exits the applicator outlet and provides an increasing surface for the slurry to flow over such that, in use, slurry delivered from the slurry applicator contacts the spreading portion 2 so as to disseminate the delivered slurry in a dispersed manner. Thereby, the spreading device 1 encourages slurry to spread over the increasing surface and eventually over the edge of the spreading device 1 that extends around the perimeter of the base 6. This provides an effective method for spreading slurry without lines of concentrated slurry being applied to the land whilst also preventing harmful emissions from being deposited into the environment. Referring to the figures, the spreading portion 2 is semi-dome-shaped. However, the skilled person will understand that the spreading portion may be any shape suitable to enable slurry runoff and spreading of the slurry. The sloping surface 8 extends radially and downwardly between the apex 4 and the base 6. This means that the slurry can spread radially as it flows towards base 6 before being dispersed onto the ground / farmland. The sloping surface 8 has side portions 8a, 8c wherein the distance between the side portions 8a, 8c increases towards the base 6 and / or away from the apex 4. This means that, in use, slurry travels over the sloping surface towards the base, and as the slurry travels over the widening surface, it spreads to cover the widening surface. Thus, the slurry is distributed over a widened surface area of the ground. This is in comparison to thick lines of slurry being distributed directly from a slurry applicator such as usually occurs when using a dribble bar. The spreading device 1 has a leading end 1a and a trailing end 1c. The width of the spreading portion 2 increases away from the leading end 1a and / or towards the trailing end 1c. The width of the spreading portion may also increase away from the trailing end 1c. In particular, the width of the base 6 increases away from the leading end 1a. This further enhances spreading of the slurry prior to it being distributed onto the ground / farmland. Thus, this further increases the surface area of ground over which the slurry is distributed, thereby preventing thick layers of slurry from being deposited on any one area of ground. The distance between side portions 8a, 8c of the sloping surface 8 also increases away from the leading end 1a. The spreading portion 2 has a base edge 7 which extends around the perimeter of the base 6 over which slurry runs before falling to the ground below. The base edge 7 a leading portion 7a and a trailing portion 7c. The applicator-engaging portion 10 extends upwardly from the spreading portion 2, most preferably at a trailing end 1c of the spreading device 1 such that the applicatorengaging portion 10 does not obstruct slurry flow over the spreading device 1. The spreading device 1 has an intermediate sloping portion 14 extending between the applicator-engaging portion 10 and the spreading portion 2. This prevents slurry from getting trapped in a joint between the applicator-engaging portion 10 and the spreading portion 2. The sloping surface 8 has a central region 8b sloping downwardly from the apex 4 towards the leading end 1a of the spreading device 2, with the side portions 8a, 8c of the sloping surface 8 extending from either side of the central region 8b. The side portions 8a, 8c are symmetrical to enable equal distribution of slurry over the spreading device and thereby onto the ground below. Thus, this further prevents concentrated lines of slurry from being distributed onto the ground. The central region 8b is a central line or central portion extending between the symmetrical side portions 8a, 8c. The applicator-engaging portion 10 is configured to engage with and / or attach to a wall at the outlet of the slurry applicator such as a wall 50 of the hose 42 of a dribble bar 40. As illustrated in Figure 5, the applicator-engaging portions 10 engages with an external portion of the hose 42. However, it may be arranged to engage with an internal portion of the slurry applicator if desired. The applicator engaging portion 10 extends transverse to the spreading portion 2. In particular, the applicator-engaging portion 10 extends perpendicular to or substantially perpendicular to the longitudinal axis of the spreading portion 2. This means that the applicator-engaging portion 10 does not impede the flow of slurry off the spreading device and / or onto the ground. Further, this ensures that the spreading portion 2 extends transverse to or substantially perpendicular to the flow of slurry as it exits the outlet of the slurry applicator. Thereby, this enables the spreading portion to intercept the slurry and spread the slurry prior to it falling onto the ground. In use, the applicator-engaging portion 10 is attached to a wall of the outlet hose, pipe or tube of the slurry applicator such that the spreading portion 2 extends across the outlet to intercept slurry as it exits the outlet or just after it exits the outlet. In use, the applicator engaging portion extends parallel to or substantially parallel to the outlet hose, pipe or tube of the slurry applicator. For example, when in use on a dribble bar 40, the applicator-engaging-portion 10 extends parallel to or substantially parallel to the outlet hose 42 of the applicator 40. The spreading device is suitable for use with and attachment to a slurry applicator, most preferably a dribble bar 40, in particular an outlet hose 42 of a dribble bar 40. The attachment arrangement 12 has apertures 13 formed on the applicator engaging portion 10 for receiving fixing means 52 (Figs 5, 7 and 8) to fix the spreading device 1 onto the slurry applicator. This enables the spreading device to be retrofitted onto the slurry applicator. The apertures illustrated are square. However, any suitable shape may be used. Alternatively, or additionally, the applicator-engaging portion may have clamps, adhesive and / or any other suitable means for attaching to a slurry applicator such as the hose of a dribble bar. The spreading device is for use with a low emissions slurry applicator. By a low emissions slurry applicator, we mean slurry applicators that spread at or around ground level, for example, a dribble bar having outlets at or close to the ground to prevent or reduce the exposure of slurry to the air. This is in comparison to other slurry spreading methods such as the splash plate method which propels slurry towards a plate to scatter the slurry and resulting in a high exposure of slurry to the air due to splashing off the plate. The apex 4 shown in the drawings is rounded. However, the apex may also be pointed or flat. For example, the spreading portion 2 may be triangular in vertical and / or horizontal cross-sections or may take the form of a frustum or half frustum. The spreading device 1 is also suitable for guiding the flow of any liquid other than agricultural slurry or any slurry other than agricultural slurry. The spreading device is for use on slurry applicators distributing slurry at low-pressure such as dribble bar where the pressure is divided over multiple outlet hoses. Referring to figure 9, there is shown a dribble bar 40 for distributing slurry onto farmland, the dribble bar has a plurality outlet hoses 42 and a spreading device 1 fixed to each hose 42 slurry according to a first aspect of the invention. The applicator-engaging portion 10 of the spreading device 1 is fixed to the hose 42 of the dribble bar 40. The spreading portion 2 extends transverse to or substantially transverse to the hose 42 of the dribble bar 40. In use, the spreading portion is located below the outlet of the hose 42 and extends across the outlet of the hose 42. This enables the spreading portion 2 to intercept slurry as it exits the outlet or just after it exits the outlet of the hose. Referring to Figures 11 to 16, there is shown an embodiment of the invention wherein the spreading portion 2 is adjustable between a first position wherein the spreading portion is positioned opposite the outlet of the applicator to intercept and spread the slurry as illustrated in figures 12, 14 and 15 and a second position wherein the spreading portion is positioned away from the outlet of the applicator such that it does not intercept and spread the slurry exiting the outlet, as illustrated in figures 13 and 16. The applicator engaging portion 10 has a first member 14 engaging with the hose 42 of a dribble bar and a second member 16 extending from the spreading portion 2. The second member 16 is rotatably connected to the first member 14 to enable adjustment of the position of the spreading portion 2 between the first position and the second position. The first member 14 engages with hose 42 via a fixing means (not illustrated) such as a screw or bolt which may engage through apertures 13. The second member 16 is connected to the first member 14 via an additional fixing means 54 and is rotatable around that fixing means 54. As illustrated, the first member 14 is curved to match the profile of a hose. The spreading device has a locking means 18 to lock the spreading portion 2 in the first position. The locking means 18 has male and female connectors 18a and 18b respectively in the form of a plug 18a on the first member 14 and a corresponding socket 18b on the second member 16. Aspects of the present invention have been described by way of example only and it should be appreciated that additions and / or modifications may be made thereto without departing from the scope thereof as defined in the appended claims. It is to be understood that the invention is not limited to the specific details described herein which are given by way of example only and that various modifications and alterations are possible without departing from the scope of the invention as defined in the appended claims.

Claims

1. A device for spreading agricultural slurry onto farmland, the slurry spreading device comprising:a spreading portion having a shape adapted for enabling slurry runoff and spreading slurry, and;an applicator engaging portion having attachment means for attaching the slurry spreading device to a dribble bar slurry applicator.

2. A slurry spreading device according to claim 1, wherein the slurry spreading device comprises a leading end and a trailing end and wherein the width of the spreading portion increases away from the leading end and / or trailing end.

3. A slurry spreading device according to any preceding claim, wherein the applicatorengaging portion is suitable for attaching to a wall of an outlet hose, pipe, or tube of a slurry applicator.

4. A slurry spreading device according to any preceding claim, wherein the spreading portion extends transverse to the applicator-engaging portion.

5. A slurry spreading device according to any preceding claim, wherein the spreading portion extends perpendicular to or substantially perpendicular to the applicatorengaging portion.

6. A slurry spreading device according to any preceding claim, wherein the spreading portion is adjustable between a first position wherein the spreading portion is positioned opposite the outlet of the applicator to intercept and spread the slurry and a second position wherein the spreading portion is positioned away from the outlet of the applicator such that it does not intercept and spread the slurry exiting the outlet.

7. A slurry spreading device according to claim 6, wherein the spreading portion is rotatable between the first position and the second position.

8. A slurry spreading device according to claim 6 or 7, wherein the applicator engaging portion comprises a first member for engaging with the hose of a dribble bar and asecond member extending from the spreading portion, wherein the second member is rotatably connected to the first member to enable adjustment of the position of the spreading portion between the first position and the second position.

9. A dribble bar for distributing agricultural slurry onto farmland, the dribble bar comprising an outlet hose and a slurry spreading device according to any one of claims 1 to 8.

10. A dribble bar according to claim 9 wherein the applicator-engaging portion of the slurry spreading device is fixed to the hose of the dribble bar.

11. A dribble bar according to any one of claims 9 or 10, wherein the spreading portion of the slurry spreading device extends below the outlet of the hose.

12. A dribble bar according to claim 11, wherein the spreading portion of the slurry spreading device extends across the outlet of the hose.

13. A dribble bar according to any one of claims 9 to 12, wherein the spreading portion extends transverse to the hose.

14. A dribble bar according to any one of claims 9 to 13, wherein the spreading portion of the slurry spreading device is adjustable between a first position wherein the spreading portion is positioned opposite the outlet of the applicator to intercept and spread the slurry and a second position wherein the spreading portion is positioned away from the outlet of the applicator such that it does not intercept and spread the slurry exiting the outlet.

15. A dribble bar according to any one of claims 9 to 14, wherein the dribble bar comprises a plurality of outlet hoses and a slurry spreading device fixed to each hose.

Images