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喷雾机喷雾由于受气候影响较小,药液的分布均匀,药液的粘着性能好,因此防治效果好,得到了广泛的应用。但在使用中如在喷施大面积的除草剂、杀菌剂及自制的石硫合剂(石灰、硫磺粉)时,喷头内的分流片、涡流片,由于药粉的沉淀,容易使喷片孔阻塞而造成雾化不良及间断雾化。从而使防治作业不能正常进行。为了解决这个实际问题,我们采用了自制狭缝式喷头的方法,对喷头进行了改进。 1.用曰20mm的圆铁车成一端长20mm,直径田16mm,另一端车成锥形,宽度为10mm。 2.从锥形一端钻廖14.5mm的孔。 3.从直径矽16mm的一端,以中心线两侧各锯开一小缝。 4.车与锥形相配的螺帽。 5.用12.7mm或19.05mm的焊接管及镀锌管,弯成70°左右有的角度,然后焊接在主药管道上,间距一般为400—500mm,也可根据需要而定。 6.然后组装在机架上便可使用。 改装喷头是根据撞击式喷头和狭缝式喷头的原理综合改制而成的,当具有一定压力的药液在锥形孔壁的导向作用下,经狭缝通道喷出时,受到了狭缝的限制和挤压,加剧了液流内部的撞击,在喷射过程中向压力低的两侧扩散,形成偏平状雾流。改装后的狭缝式喷头,具有结构简单,经济实惠,不易损坏,雾化性能好,不易阻塞,安全可靠的特点。经过几年来的使用,效果很好,射程远,覆盖面大,工作幅度可以?
Sprayer spray due to less affected by the climate, the distribution of the liquid medicine, liquid adhesive performance, so the control effect is good, has been widely used. However, in use, such as spraying a large area of herbicides, fungicides and self-made lime sulfur mixture (lime, sulfur powder), the nozzle of the shunt, eddy current tablets, due to the precipitation of powder, Resulting in poor atomization and intermittent atomization. So that prevention and control operations can not be normal. In order to solve this practical problem, we adopted a self-made slit nozzle method to improve the nozzle. 1. With a 20mm round iron car into an end of 20mm, diameter field 16mm, the other end of the car into a cone, the width of 10mm. 2. Drill 14.5mm holes from the tapered end. 3. From the end of the diameter 16mm silicon, saw a small slit on each side of the centerline. 4 car and tapered nut. 5 with 12.7mm or 19.05mm welded pipe and galvanized pipe, bent into some angle of about 70 °, and then welded on the main drug pipeline, the spacing is generally 400-500mm, but also may be required. 6. Then assembled in the rack can be used. Modification of the nozzle is based on the impact of the nozzle and the principle of slit nozzle integrated reform made when a certain pressure of the liquid in the tapered wall of the hole under the guidance of the role of the slit through the channel when the slit Limit and squeeze, exacerbated the impact of the internal flow, the spray process to the low pressure on both sides of the proliferation, the formation of flat-shaped mist flow. Modified slit nozzle, with a simple structure, affordable, easy to damage, good atomization performance, easy to block, safe and reliable. After several years of use, the effect is very good, long range, coverage, the scope of work can be?