网带平回筛及其进行粮食除杂的方法Net belt flat return sieve and method for carrying out grain removal
本发明涉及一种大型的粮食除杂清理设备，特别是一种每小时处理量可达100-500吨的用于清除大、中、小杂的超大型粮食清理除杂设备。The invention relates to a large-scale grain cleaning and cleaning device, in particular to an ultra-large grain cleaning and impurity removing device for removing large, medium and small impurities with an processing capacity of 100-500 tons per hour.
目前市场上没有能够同时去除大中小杂的大型粮食清理设备，传统的用于处理大杂的设备主要是网带筛和滚筒筛，网带筛产量一般为100-500t/h，滚筒筛为50-150t/h，处理中小杂的设备主要是振动筛和回转筛，产量一般在10-50t/h，处理量50t/h以上的中小杂筛已经算是先进的大型设备。如果每小时清理200吨原粮，需要配置2台100t/h的滚筒初清筛处理大杂和4台先进的50t/h的回转筛处理中小杂，成本达到80万左右，同时需要四层的工作塔，高度相当于4层楼高，成本更要100万以上，筛理设备加上工作塔再加上安装费用等，综合成本在200万以上，且上述成本还未将提升机相关费用计入。而且设备运转需要的能耗较高，一台100t/h的滚筒初清筛能耗5.5kW，一台50t/h的旋振筛能耗3.0kW，因此处理200吨原粮能耗需23kW以上，若加上提升机则能耗更高。若每小时处理200吨以上的原粮则需要更繁琐的配置和更高的能耗，设备之间还需要分溜器等联接配件，成本则更高。粮食收获回来以后，由于不能及时入仓，虫吃、鼠叼、鸟衔、发霉，损失在收获粮食的10％以上，解决粮食初加工速度，是国家和粮食行业发展中亟待解决的问题。At present, there is no large-scale grain cleaning equipment capable of simultaneously removing large, medium and small impurities. The traditional equipment for handling large miscellaneous materials is mainly mesh belt screen and drum screen. The output of mesh belt screen is generally 100-500t/h, and the drum screen is 50. -150t/h, the equipment for processing small and medium miscellaneous is mainly vibrating screen and rotary screen. The output is generally 10-50t/h, and the medium and small miscellaneous screen with the processing capacity above 50t/h is regarded as an advanced large-scale equipment. If you clean 200 tons of raw grain per hour, you need to configure two sets of 100t/h drums for primary cleaning and four advanced 50t/h rotary screens for small and medium-sized, costing up to 800,000, and require four layers of work. Tower, the height is equivalent to 4 stories, the cost is more than 1 million, the sifting equipment plus the working tower plus the installation cost, etc., the comprehensive cost is more than 2 million, and the above costs have not been included in the levee related costs. . Moreover, the energy consumption required for the operation of the equipment is relatively high. The energy consumption of a 100t/h drum primary cleaning screen is 5.5kW, and the energy consumption of a 50t/h vibrating screen is 3.0kW. Therefore, the energy consumption for processing 200 tons of raw grain needs 23kW or more. If you add a hoist, the energy consumption is higher. If you process more than 200 tons of raw grain per hour, you will need more complicated configuration and higher energy consumption. The equipment also needs to be connected with accessories such as splitter and the cost is higher. After the grain harvest comes back, because it can't be put into the warehouse in time, the insects eat, rat, bird, and mold, and lose more than 10% of the harvested grain, solving the initial processing speed of grain is an urgent problem to be solved in the development of the country and the grain industry.
传统清理大杂的网带初清筛由进料斗、网带输送机构、清理机构及传动系统组成。主要清除草绳头、长秸秆、砖头、土块等大型杂物。当含有粮食的收获物自然下落至筛面以后，由于粮食粒径远小于筛孔，通过筛孔落下流向粮食出料口；而大杂质粒度或长度大于筛孔，就不能或不易通过筛孔，而留在筛面上，大杂质随着输送网带的前行被输送到杂质出料口，从而将粮食等小粒径收获物和大杂质分离。The traditional cleaning of large mesh belts is composed of a feeding hopper, a mesh belt conveying mechanism, a cleaning mechanism and a transmission system. It mainly removes large debris such as straw heads, long straws, bricks, and clods. After the harvest containing the grain naturally falls to the sieve surface, since the grain size of the grain is much smaller than the sieve hole, it falls through the sieve hole and flows to the grain discharge port; and if the particle size or length of the large impurity is larger than the sieve hole, it cannot or cannot pass through the sieve hole. On the screen surface, large impurities are transported to the impurity discharge port along with the advancement of the conveyor belt, thereby separating small particle size harvests such as grain and large impurities.
由于网带筛的筛分过程属于自由下落性质，下层也非常容易在二次筛分中堵塞。传统上，网带筛都是断续工作，用于清理大杂，对于清理中杂不能适应，因为网眼变小更容易堵塞，行业上没有将其用于进行中杂小杂的清理。Since the screening process of the mesh belt screen is free fall, the lower layer is also very susceptible to clogging in the secondary screening. Traditionally, the mesh belt screens are intermittent work, which is used for cleaning up large impurities. It is not suitable for cleaning and mixing. Because the mesh is smaller and more likely to be blocked, it is not used in the industry for cleaning and cleaning.
再说清理小杂，以清理水稻小杂为例，传统的清理筛产量一般在30-50吨/时，产量100吨/时的平回清理筛只有少数厂家能够生产。传统清理筛筛面与筛箱相对固定，并且只做平回运动，部分小杂或破碎的原粮经过工作中很容易卡在筛孔中，造成筛面堵塞，无法 自行清理，筛面清理机构不理想，工人必须每天清理一次筛面，疏通筛孔，耗时耗力，否则就会影响筛理效果。In addition, cleaning up small miscellaneous, in order to clean up small rice as an example, the traditional cleaning sieve output is generally 30-50 tons / hour, the output of 100 tons / hour of flat cleaning screen only a few manufacturers can produce. The traditional cleaning screen surface is relatively fixed with the screen box, and only the flat back movement is carried out. Some small or broken raw grain is easily stuck in the sieve hole after work, causing the screen surface to be blocked and unable to be cleaned by itself. The screen cleaning mechanism is not Ideally, the worker must clean the sieve surface once a day to clear the sieve hole, which is time consuming and laborious, otherwise it will affect the screening effect.
发明内容：Summary of the invention:
本发明的目的是提供一种处理能力强、处理量大质量好，设备厂房建设高度小、建设费用低、能有效进行杂物分离的除杂设备和进行粮食除杂的方法。The object of the present invention is to provide a decontamination device with high processing capacity, high processing capacity, low construction height, low construction cost, and efficient separation of impurities, and a method for removing impurities.
传统的筛子赋予被筛分物体的动能小或者直线运动，处理过程中滚动性能差，容易堵塞，筛理能力和筛分效果很难提高。The traditional sieve gives the kinetic energy of the sieved object small or linear motion, and the rolling performance during processing is poor, and it is easy to block, and the screening ability and the screening effect are difficult to be improved.
发明目的：Purpose of the invention:
本发明的目的是提供一种处理能力强、处理量大质量好，设备厂房建设高度小、建设费用低、能有效进行杂物分离的除杂设备和进行粮食除杂的方法。本发明使被筛分物体螺旋运动，显著提升筛理质量，筛分能力提升显著。The object of the present invention is to provide a decontamination device with high processing capacity, high processing capacity, low construction height, low construction cost, and efficient separation of impurities, and a method for removing impurities. The invention makes the sieved object spirally move, significantly improves the quality of the sieve, and the screening ability is improved significantly.
本发明的目的是这样实现的：The object of the invention is achieved in this way:
网带平回筛，其组成包括：筛架，所述的筛架通过吊杆或者摇杆或者摆杆连接筛箱，所述的筛箱中装有一组网带筛面，平回机构安装在所述的网带筛面之间，所述的网带筛面包括大中杂网带平回筛和小杂网带平回筛，所述的大中杂网带筛和小杂网带筛分别连接驱动机构，位于底层以外的所述的小杂网带筛上下筛面间装有倾斜的出杂滑板。The mesh belt flat return screen comprises: a screen frame, wherein the screen frame is connected to the screen box by a boom or a rocker or a swing rod, wherein the screen box is provided with a set of mesh belt screen surface, and the flat return mechanism is installed at Between the mesh belt screen surfaces, the mesh belt screen surface comprises a large medium mesh belt flat return screen and a small miscellaneous net belt flat back screen, and the large medium and small mesh belt screen and the small miscellaneous mesh belt screen The driving mechanism is respectively connected, and the inclined meshing slide plate is arranged between the upper and lower screen surfaces of the small mesh belt screen outside the bottom layer.
所述的网带平回筛，所述的大中杂网带筛位于小杂网带筛上方时，所述的大中杂网带筛与小杂网带筛之间装有导粮板，所述的出杂滑板为一组相向布置的斜板，倾斜角度为3-10度，所述的斜板形成的凹面底部装有小杂出料机构，位于底层的所述的小杂网带筛的出杂滑板为收集板。The mesh belt is flatly sifted, and the large and medium mesh belt screen is placed above the small miscellaneous mesh belt screen, and the grain guiding plate is arranged between the large and medium mesh belt screen and the small miscellaneous mesh belt screen. The slanting slide plate is a set of slanting plates arranged opposite to each other at an inclination angle of 3-10 degrees, and the concave bottom surface formed by the inclined plate is provided with a small miscellaneous discharging mechanism, and the small miscellaneous mesh belt located at the bottom layer The sifting slide of the sieve is a collecting plate.
所述的网带平回筛，所述的网带筛的筛面两侧平行布置有链条，所述的链条之间装有由筛片组成的筛面；所述的小杂网带筛筛面倾角0-5度，所述的大中杂网带筛的筛面倾角为0-4度，所述的小杂网带筛链条上具有覆盖所述的链条的倒L形挡边，所述的链条和所述的筛箱之间连接有挡料板，或者两侧的所述的链条上具有与筛面垂直的挡边。The mesh belt is flatly sifted, and the mesh belt screen is arranged with two parallel rows on both sides of the screen surface, and the chain strip is provided with a sieve surface composed of sieve sheets; the small mesh belt sieve The rake angle is 0-5 degrees, the sieve angle of the large medium mesh screen is 0-4 degrees, and the small mesh belt screen chain has an inverted L-shaped rib covering the chain. A baffle is connected between the chain and the screen box, or the chain on both sides has a rib perpendicular to the screen surface.
所述的网带平回筛，所述的筛面的横轴穿过所述的链条或者替代所述的链条的销轴，所述的横轴之间通过铰接双环丝构成筛面，所述的横轴端部装有螺帽，特别是在直径小于4mm的所述的横轴端部装有管型螺帽。The mesh belt is flatly sifted, and the horizontal axis of the screen surface passes through the chain or replaces the pin of the chain, and the horizontal axis forms a screen surface by the hinged double loop wire. The end of the horizontal shaft is provided with a nut, and in particular, a tubular nut is provided at the end of the horizontal shaft having a diameter of less than 4 mm.
所述的网带平回筛，所述的筛面为冲孔筛面或者铰接筛面或者编织筛面，所述的双环丝为冲孔双环片，所述的小杂出料机构为螺旋出料机构。The mesh belt is flat-backed, the screen surface is a punching screen surface or a hinged screen surface or a woven screen surface, the double-ring wire is a punched double-ring piece, and the small-mixing material is spirally out. Material agency.
所述的网带平回筛，所述的大中杂网带平回筛上下筛面中装有导流斜板。The mesh belt is flatly sifted, and the sloping plate is arranged in the upper and lower screen surfaces of the large and medium mesh belt flat return screen.
所述的网带平回筛，所述的大中杂网带筛上下层筛面间具有粮食导出板，或者所述的大中杂网带筛面为铰接垂片结构，防止筛下粮食重复筛理。The mesh belt has a flat return screen, and the large medium and small mesh belt has a grain exporting plate between the upper and lower screen faces, or the large and medium mesh belt screen surface is a hinged fin structure to prevent the food from being duplicated under the sieve. Screening.
所述的网带平回筛，所述的小杂出料机构为螺旋出料机构，所述的小杂网带筛筛孔数目为筛分物通过数目的60-80％，所述的大杂网带筛的筛孔数目为筛分物通过数目的2-15倍；所述的导流斜板为小杂筛板，所述的导流斜板下方具有小杂出料机构。The mesh belt is flatly sifted, the small miscellaneous discharging mechanism is a spiral discharging mechanism, and the number of the small mesh belt screening holes is 60-80% of the number of screening passages, the large The number of sieve holes of the mesh screen is 2-15 times of the number of sieve passages; the guide swash plate is a small miscellaneous sieve plate, and the guide swash plate has a small miscellaneous discharge mechanism below.
利用所述的网带平回筛进行粮食除杂的方法，启动网带筛工作的驱动机构和筛箱平回运动的平回机构，形成平回运动和网带直行运动的复合运动模式，将脱粒后的包括粮食在内的混合物的物料投入到小杂清理筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛下灰尘尘土秸秆细屑之类小杂物质导入收集仓；The method for removing grain by using the mesh belt flat back sieve, starting the driving mechanism of the mesh belt screening work and the flat returning mechanism of the sieve box flat return movement, forming a compound motion mode of the flat return movement and the straight belt movement of the mesh belt, The material of the mixture including grain after threshing is put into the small miscellaneous cleaning sieve, and the small impurities such as dust, dust and straw fines are introduced into the collection bin through the rolling of the bumps and the flat back movement during the straight process of the mesh belt;
包括粮食在内的大颗粒的筛余物料，经导料板进入大中杂网带筛，所述的筛余物料在大中杂网带筛中通过网带直行过程中的颠簸和平回运动的滚动，筛下粮食并收集起来；The large amount of sieve material including grain is passed through the guide plate into the large and medium mesh screen, and the sieve material is passed through the mesh belt in the large and medium mesh belt screen. Rolling, sifting the grain and collecting it;
筛余的大颗粒杂物，导入收集器，完成初步的粮食等收获物的清理除杂工作。The large amount of debris left in the sieve is introduced into the collector to complete the preliminary cleaning and removing work of the grain and the like.
利用所述的网带平回筛进行粮食除杂的方法，进行粮食除杂的方法，启动网带筛工作的驱动机构和筛箱平回运动的平回机构，形成平回运动和网带直行运动的复合运动模式，将脱粒后的包括粮食在内混合物的物料投入到大中杂网带筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛余的大颗粒杂物，导入收集仓，筛下的粮食和小杂进入到小杂清理筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛下灰尘尘土秸秆细屑之类小杂物质导入收集仓，粮食作为筛余物进入粮仓。The method for removing grain by the net belt flat back sieve is carried out, the method for removing the grain is carried out, the driving mechanism for starting the mesh belt screening operation and the flat returning mechanism for the flat movement of the sieve box are formed, and the flat back movement and the mesh belt are straightened. The composite motion mode of the movement, the material of the mixture including the grain after threshing is put into the sieve of the large and medium mesh belt, and the rolling of the bumps and the smooth back movement during the straight process of the mesh belt, the large particles of the sieve are introduced, and the materials are introduced. Collecting bins, the grain and small miscellaneous grains entering the sieve enter the small miscellaneous cleaning sieve, rolling through the bumps and peaceful movements in the process of straightening through the mesh belt, and introducing small impurities such as dust, dust, straw and fines into the collection bin, and the grain is used as The sieve residue enters the granary.
1.本发明的大中杂网带筛在上的网带平回筛产量高，同样占地面积，单层高度处理水稻单台产量可达每小时100-300吨，同样占地面积，处理能力提高数倍。并且可以客户的特殊需求定制2000吨的特大型筛。另外，本发明的筛面进行直线运动，筛箱进行平回运动，形成复合运动的模式，这种复合运动使筛面具备了自清功能，当筛面运动到弯曲位置时，筛孔内的堵塞物便会在平回运动下借力弹出或松动，筛面运动到朝下时，筛面上的物质会因重力和平回作用而下落，从而达到了筛面清理的效果，可大大节省人工劳动力。1. The large-scale mesh belt screen of the invention has a high output in the upper mesh belt flat screen, and the same floor space, the single-layer high-processing rice single-stage output can reach 100-300 tons per hour, the same floor space, treatment The ability is increased several times. And we can customize 2000 tons of extra large screens for customers' special needs. In addition, the screen surface of the present invention performs linear motion, and the screen box performs a flat motion to form a compound motion mode. The composite motion enables the screen surface to have a self-cleaning function, and when the screen surface moves to the bending position, the screen hole The blockage will be pulled out or loosened under the flat back movement. When the screen surface moves down, the material on the screen surface will fall due to gravity and peaceful return, thus achieving the effect of cleaning the screen surface, which can greatly save labor. labor force.
本发明采用双环丝筛面，可以方便的弯转。由于筛面前行中包含了平回运动，平面筛面本身没有阻挡，筛余物容易滚落混杂。为了防止筛面两侧出现筛余物的滚落形成与筛下物的混杂，设置了L形挡板。The invention adopts a double-ring silk screen surface, which can be easily bent. Since the front line of the sieve contains the flat back movement, the plane screen surface itself is not blocked, and the sieve residue is easy to roll off. In order to prevent the occurrence of the falling of the sieve residue on both sides of the screen surface and the mixing of the undersize, an L-shaped baffle is provided.
本发明的导粮机构为倾斜的导粮板或者带式输送机，所述的大中杂网带筛筛面下面和/或所述的小杂网带筛筛面下面装有托辊，传统清理筛需要配置两种筛型分别处理大杂和 中小杂，需要几层楼高的工作塔，并且吸风点多，需要配置多个脉冲除尘器，配置繁琐，提升高度较高，一般在30米以上，粮食一层层的跌落下来，破碎和降级都是难免的，并且设备运转需要的能耗较高，因此综合成本高。本发明的清理筛筛理能力强，并且既能够去除大杂也能去除中小杂，一台清理筛可代替传统的多个清理筛组合，并且不需要较高的工作塔，降低了粮食提升的高度，简化了配置，既节约了能耗又降低了成本，显著提高了粮食等级和质量。The food guiding mechanism of the present invention is a slanted grain guiding plate or a belt conveyor, and the large medium and small mesh belt screen surface and/or the small miscellaneous mesh screen screen surface is equipped with a roller, the traditional The cleaning screen needs to be configured with two types of screens to deal with large and medium and small impurities. It requires several floors of work towers, and there are many suction points. It is necessary to configure multiple pulse dust collectors. The configuration is cumbersome and the lifting height is high. Generally, it is 30. Above the meter, the fall of the grain layer is inevitable, and the crushing and downgrading are inevitable, and the energy consumption required for the operation of the equipment is high, so the comprehensive cost is high. The cleaning sieve of the invention has strong screening ability, and can remove large impurities and remove small and medium impurities, and one cleaning sieve can replace the traditional multiple cleaning sieve combination, and does not require a high working tower, thereby reducing food lifting. The height simplifies the configuration, which saves energy consumption and reduces costs, and significantly improves food grade and quality.
本发明所述的大杂筛为环形网带筛，所述的大中杂网带筛的筛面角度为0-4度，所述的大中杂网带筛的筛孔尺寸大于被筛分粮食尺寸的1.5倍以上，所述的小杂网带筛为环形的具有复合层的筛面，所述的小杂网带筛的筛面角度为0-5度，所述的小杂网带筛的筛孔尺寸小于被筛分粮食尺寸的0.8倍以下，实现最佳的筛分参数。The large miscellaneous sieve of the present invention is an annular mesh belt sieve, and the sieve angle of the large medium mesh screen is 0-4 degrees, and the sieve size of the large medium mesh sieve is larger than that of the sieve. 1.5 times or more of the grain size, the small mesh belt sieve is an annular sieve surface having a composite layer, and the sieve mesh angle of the small mesh belt sieve is 0-5 degrees, and the small miscellaneous mesh belt The mesh size of the sieve is less than 0.8 times the size of the sieved grain to achieve optimal screening parameters.
本发明的大中杂网带筛下部装有导粮板或带式输送机，可以集合筛下物，导向一端，使筛下物及粮食从小杂筛一端进入，全程筛理，使小杂得以更加充分、更长距离的筛分，提高筛理效果。The lower part of the large and medium mesh belt screen of the invention is provided with a guide grain plate or a belt conveyor, and the sieved objects can be collected and guided to one end, so that the undersize material and the grain are entered from the end of the small mixed sieve, and the whole process is sieved, so that the small impurities can be obtained. More adequate, longer distance screening to improve the screening effect.
本发明的大中杂网带筛中装有输送板，所述的输送板为一组平行的导流斜板，将第一层筛面筛下来的粮食集中送到下层筛面的起始端，可以有效加长筛理长度，提高筛分质量，采用导流斜板时，位于下层的所述的大中杂网带筛的出口方向装有大杂输出机构，防止堵筛。根据筛理不同植物秸秆的情况，有时也可以采用向两侧出料的出料斜板，可以有效防止二次筛分过程发生堵筛。The large and medium mesh belt screen of the present invention is provided with a conveying plate, wherein the conveying plate is a set of parallel guiding swash plates, and the grain of the first layer of sieve mesh is concentrated to the starting end of the lower sieve surface. The length of the sieving can be effectively lengthened, and the quality of the sieving can be improved. When the swash plate is used, a large impurity output mechanism is arranged in the outlet direction of the large and medium mesh screen in the lower layer to prevent the sifting. According to the situation of sieving different plant straws, it is sometimes possible to use a discharge slanting plate which discharges to both sides, which can effectively prevent the screening of the secondary screening process.
根据情况本发明可以将多个工作筛组成一组小杂网带筛，上下布置在同一个筛箱中，为了清理筛下物避免与下层的粮食混杂，其中自下而上从第二个小杂网带筛起所述的小杂网带筛装有倾斜的出杂滑板，所述的出杂滑板可以是：a.一组沿网带倾斜的平行板；或者b.2个相向倾斜成v型结构、沿网带倾斜的所述的出杂滑板如果是v形结构，则底部具有螺旋排杂机构；c.也可以向网带一侧或者两侧倾斜形(成倒v型结构)，便于筛下物清除；筛分杂质粘性比较大的物料时，为了更新筛网的工作性能，所述的小杂网带筛和/或所述的大中杂网带筛装有清理辊或者清理刷。According to the invention, a plurality of working sieves can be formed into a group of small mesh belt screens, which are arranged in the same screen box on the upper and lower sides, in order to avoid the mixed materials with the lower layer in order to clean the undersize materials, wherein the bottom is from the bottom to the second small The small mesh belt screen of the miscellaneous mesh belt is provided with a slanted out-draft slide plate, and the splayed slide plate may be: a. a set of parallel plates inclined along the mesh belt; or b. 2 oppositely inclined The v-shaped structure, the slanting slide plate inclined along the mesh belt is a v-shaped structure, and the bottom has a spiral discharge mechanism; c. can also be inclined to one side or both sides of the mesh belt (inverted v-shaped structure) In order to facilitate the removal of the undersize material; in order to sift the material with relatively high viscosity of the impurities, in order to update the working performance of the screen, the small mesh screen and/or the large and medium mesh screen are equipped with a cleaning roller or Clean the brush.
由于原粮的粒度差异，传统的粮食除小杂机械只能为一种粮食除杂，例如清理玉米收获物的杂质和清理水稻收获物的杂质，就需要分别使用不同筛孔的设备。为了不同粮食种类共享本发明的设备，减少处理或者仓储单位开支，本发明的小杂网带筛分别设置了大颗粒粮食网带筛、小颗粒粮食网带筛，并在导流斜板底部装有铰接的改向板，通过人工拨动改向板的方向，进行选择性导流，进入不同大小筛孔的小杂网带筛，一台设备完成多种 粮食的除小杂过程。Due to the difference in grain size of the original grain, the traditional grain removal machine can only use a kind of equipment for different kinds of mesh, such as cleaning up the impurities of the corn harvest and cleaning up the impurities of the rice harvest. In order to share the equipment of the invention for different food types and reduce the processing or storage unit expenditure, the small miscellaneous mesh belt screen of the invention is respectively provided with a large grain grain mesh screen, a small grain grain mesh screen, and is installed at the bottom of the deflecting swash plate. There is a hinged reversing plate, which can be selectively deflected by manually shifting the direction of the reversing plate, and enters a small miscellaneous mesh belt screen of different size sieve holes, and one device completes the process of removing various miscellaneous grains.
本发明的网带筛的筛面具有多种形式，可由金属丝制作的两侧带有圆环的双环丝与横轴组装成，也可以由金属筛片顺次排列形成，或为金属丝编结形成，或者冲压形成，如果采用一端铰接的筛片，在运行到下层的时候，可以打开筛面，使得筛下物顺利排出，避免内堵，采用不同形式的筛面，可以适用于不同种类的原粮筛分要求。The screen surface of the mesh belt screen of the invention has various forms, and the double-ring wire with the ring on both sides and the horizontal axis can be assembled from the metal wire, or can be formed by sequentially arranging the metal sieve pieces, or braiding the wire. Forming, or stamping, if a sieve piece hinged at one end is used, when running to the lower layer, the sieve surface can be opened, so that the sieve material can be smoothly discharged, avoiding internal plugging, and adopting different types of sieve surface, which can be applied to different kinds of sieves. Raw grain screening requirements.
物理筛理分级是工业精细化发展的必然产物，是社会向前发展的微小的细胞的组成体，分级过程的质量，间接、或直接的影响社会的发展。在很多行业，例如煤矿、铁矿、盐矿，以及工业中的化学工业、食品和调味品业、制药、造纸、化肥工业，以及冶金、煤炭、橡胶、石油、汽车、陶瓷、玻璃等工业中固体颗粒、粉末的分级处理。Physical grading and grading is the inevitable outcome of the development of industrial refinement. It is the composition of tiny cells that the society is moving forward. The quality of the grading process indirectly or directly affects the development of society. In many industries, such as coal, iron ore, salt mines, and industrial chemical, food and condiment, pharmaceutical, paper, fertilizer, and metallurgy, coal, rubber, petroleum, automotive, ceramics, glass and other industries. Classification of solid particles and powder.
传统的振动筛是利用振子激振所产生的往复旋型振动而工作的。振子的上旋转重锤使筛面产生平面回旋振动，而下旋转重锤则使筛面产生锥面回转振动，其联合作用的效果则使筛面产生复旋型振动。其振动轨迹在水平面投影为一圆形，而在垂直面上的投影为一椭圆形。调节上、下旋转重锤的激振力，可以改变振幅。而调节上、下重锤的空间相位角，则可以改变筛面运动轨迹的曲线形状并改变筛面上物料的运动轨迹。对于干物料筛分大多可以满足一般需求。对于水分高，有粘附物料，工作时振动使物料更紧实的粘附于筛面，造成物料拥堵或者被迫停机。由于工作原理限制，该机型耗能相对较高。Conventional vibrating screens work by reciprocating rotary vibration generated by vibrator excitation. The upper rotating weight of the vibrator causes a plane to oscillate the surface of the screen, while the lower rotating weight causes the screen surface to produce a cone-shaped rotating vibration. The combined effect of the vibrating effect causes a complex-rotating vibration of the screen surface. The vibration trajectory is projected as a circle on the horizontal plane, and the projection on the vertical plane is an ellipse. Adjust the excitation force of the upper and lower rotary weights to change the amplitude. Adjusting the spatial phase angle of the upper and lower weights can change the curve shape of the screen movement trajectory and change the movement trajectory of the material on the screen surface. For dry material screening, most of them can meet the general needs. For high moisture, there is adhesive material, and vibration during work makes the material adhere more tightly to the screen surface, causing material to be congested or forced to stop. Due to the limitation of working principle, the model consumes relatively high energy.
振动筛中,直线振动筛较圆振筛生产效率高、分级效果好。在工作过程中,振动筛的动态性能直接影响筛分效率和使用寿命。振动筛是利用振动电机激振作为振动源，使物料在筛网上抖动并被抛起，同时向前作跳跃式的直线运动。运动受力方向单一，堵塞无法自清，特别适用于粘着性物品时，所有的优点几乎都被巨大的能耗和容易堵塞无法连续生产的致命弱点所抹煞。In the vibrating screen, the linear vibrating screen has higher production efficiency and better classification effect than the circular vibrating screen. During the work process, the dynamic performance of the vibrating screen directly affects the screening efficiency and service life. The vibrating screen uses vibration motor excitation as a vibration source to make the material shake on the screen and is thrown up, while making a jumping linear motion forward. The direction of motion is single, and the blockage cannot be self-clearing. Especially when it is applied to adhesive articles, all the advantages are almost wiped out by the huge energy consumption and the Achilles heel that is easy to block and cannot be continuously produced.
本发明采用平回的运动机构，带动物料做圆运动的同时，网带在直线运动中带动物料产生位移，最终物料轨迹在水平投影是带锯齿的螺旋状运动，垂直投影面是往复滚动。在使得不同粒径的物料，由于被赋予动能的大小差异，产生高度上的分级，小于筛孔的物料被筛下，随着网带的前行，在长途的螺旋运动中前进的物料，最终的彻底的清理分级。The invention adopts a flat-back motion mechanism, and takes the animal material to make a circular motion. At the same time, the mesh belt is displaced with the animal material in the linear motion, and the final material track is a spiral motion with a sawtooth in the horizontal projection, and the vertical projection surface is a reciprocating rolling. In the materials of different particle sizes, due to the difference in the size of the kinetic energy, the height is graded, and the material smaller than the mesh is screened. As the mesh belt advances, the material advances in the long-distance spiral motion, and finally Thorough cleanup grading.
本发明实施中，所述的大颗粒网带筛或者中颗粒网带筛位于所述的小颗粒网带筛上方时，所述的大中颗粒网带筛与小颗粒网带筛之间装有导料板，所述的出料滑板为一组相向布置的斜板，这样多组筛面并联排列，通过某一级筛面的的物料能被及时收集和分离，一套平回机构，可以同时完成多种粒径的筛分。In the practice of the present invention, when the large particle mesh belt sieve or the medium particle mesh belt sieve is located above the small particle mesh belt sieve, the large medium and small particle mesh belt sieve and the small particle mesh belt sieve are installed between The guide plate, the discharge slide plate is a set of inclined plates arranged opposite each other, so that a plurality of sets of sieve faces are arranged in parallel, and materials passing through a certain level of sieve face can be collected and separated in time, and a set of flat return mechanism can Simultaneous screening of multiple particle sizes is accomplished.
本发明的网带筛的筛面两侧平行布置有链条，所述的链条之间装有由筛片组成的筛 面；链传动传动运动稳定，承载能力强，并且，所述的小颗粒网带筛筛面倾角0-5度，所述的大颗粒网带筛或者中颗粒网带筛的筛面倾角为0-4度，是物料处理效果最佳。The mesh belt screen of the invention is arranged with two chains arranged in parallel on both sides of the screen surface, wherein the chain is provided with a sieve surface composed of sieve sheets; the chain transmission transmission movement is stable, the bearing capacity is strong, and the small particle net With a sieve screen inclination angle of 0-5 degrees, the large particle mesh belt sieve or the medium particle mesh belt sieve has a screen inclination angle of 0-4 degrees, which is the best material processing effect.
本发明的小颗粒网带筛链条上具有覆盖所述的链条的倒L形挡边，所述的链条和所述的筛箱之间连接有挡料板，或者两侧的所述的链条上具有与筛面垂直的挡边。可以有效地保证螺旋运动的物料不会影响链条运行，防止物料外溢。The small particle mesh screen chain of the present invention has an inverted L-shaped rib covering the chain, and a baffle plate is connected between the chain and the screen box, or the chain on both sides It has a rib perpendicular to the screen surface. It can effectively ensure that the spiral moving material will not affect the chain operation and prevent material spillage.
本发明的网带筛面的横轴穿过所述的链条或者替代所述的链条的销轴，连接非常稳固，所述的横轴之间通过铰接双环丝构成筛面，形成一种新的筛面结构，转动性能有显著提高，使用寿命提升数倍。在所述的横轴端部装有螺帽，特别是在直径小于4mm的所述的横轴端部装有管型螺帽，便于调整双环丝之间的距离，从而完成筛网目数的微调。本发明的筛面也可以采用通常的钢筋绞花筛面、冲孔筛面、铰接筛面或者编织筛面。The transverse axis of the mesh belt screen surface of the present invention passes through the chain or replaces the pin shaft of the chain, and the connection is very stable. The horizontal axis forms a screen surface by the hinged double loop wire to form a new one. The sieve surface structure has a remarkable improvement in the rotation performance and the service life is increased several times. a nut is arranged at the end of the horizontal shaft, in particular, a tubular nut is arranged at the end of the horizontal shaft having a diameter of less than 4 mm, so as to adjust the distance between the double loop wires, thereby completing the mesh number. Fine tune. The screen surface of the present invention may also be a conventional steel stranded screen surface, a punched screen surface, a hinged screen surface or a woven screen surface.
本发明的大颗粒网带筛或者中颗粒网带筛的筛面可以采用为铰接垂片结构，对于易堵物料，可以有效防止筛下物重复筛理。The sieve surface of the large-grain mesh belt sieve or the medium-grain mesh belt sieve of the invention can be adopted as a hinged tab structure, and for the easy blockage material, the sieve material can be effectively prevented from being repeatedly sieved.
附图说明：BRIEF DESCRIPTION OF THE DRAWINGS:
附图1是本产品的结构示意图。Figure 1 is a schematic view of the structure of the product.
附图2是附图1的左视图。Figure 2 is a left side view of Figure 1.
附图3是本发明筛箱内部结构示意图(先除小杂，然后除大中杂，粮食穿过大中杂下层筛面)。Figure 3 is a schematic view of the internal structure of the screen box of the present invention (first except for small impurities, and then the grain is passed through the large and medium-sized lower layer screen surface).
附图4是本发明带有垂片筛面的筛箱内部结构示意图(先除大中杂，然后除小杂，粮食不穿过下层筛面)。Figure 4 is a schematic view showing the internal structure of the screen box with the sieve surface of the present invention (first except for the large and medium impurities, and then the small amount of impurities, the grain does not pass through the lower sieve surface).
附图5是本发明先除大中杂然后除小杂的另一种筛箱内部结构示意图(粮食不穿过下层筛面)。Figure 5 is a schematic view showing the internal structure of another screen box in which the present invention is first removed and then mixed with small impurities (the grain does not pass through the lower screen).
附图6是附图5的左视图。Figure 6 is a left side view of Figure 5.
附图7是附图5的A部链节示意图。Figure 7 is a schematic view of the A link of Figure 5;
附图8是带有螺旋出料机构的小杂滑板结构示意图(是附图3俯视方向)。Figure 8 is a schematic view of the structure of a small miscellaneous slide with a screw discharge mechanism (which is a plan view of Figure 3).
附图9是本发明双环丝小杂网带筛结构示意图。Figure 9 is a schematic view showing the structure of the double loop wire mesh belt of the present invention.
附图10是附图9的左视图(网带工作示意图)。Figure 10 is a left side view of Figure 9 (schematic diagram of the mesh belt).
附图11是本发明多圈双环丝大中杂网带筛结构示意图。Figure 11 is a schematic view showing the structure of the multi-circle double-ring filament large and medium-sized mesh belt screen of the present invention.
附图12是附图11的B部放大图。Figure 12 is an enlarged view of a portion B of Figure 11 .
附图13是带有L形挡边的链条结构示意图。Figure 13 is a schematic view of a chain structure with an L-shaped rib.
附图14是链条上带有垂直挡边的网带示意图。Figure 14 is a schematic illustration of a mesh belt with vertical ribs on the chain.
附图15是平回机构的一种结构示意图(平回轮带有偏垂孔)。Figure 15 is a schematic view of the structure of the flat return mechanism (the flat return wheel has a depending hole).
附图16是筛箱带有挡料板的防跑料结构示意图。Figure 16 is a schematic view of the anti-running material structure of the screen box with the retaining plate.
附图17是导流斜板为小杂筛板的结构示意图。Figure 17 is a schematic view showing the structure of the swash plate as a small sieve.
网带平回筛，其组成包括：筛架1，所述的筛架通过吊杆2或者摇杆或者摆杆连接筛箱，所述的筛箱中装有一组网带平回筛3，平回机构4安装在所述的网带平回筛之间，所述的网带平回筛包括大中杂网带平回筛31和小杂网带平回筛32，所述的大中杂网带筛和小杂网带筛连接驱动机构41，位于底层以外的所述的小杂网带平回筛上下筛面间装有倾斜的出杂滑板5。The mesh belt flat return screen comprises: a screen frame 1 connected to the screen box by a boom 2 or a rocker or a pendulum rod, wherein the screen box is provided with a set of mesh belt flat return screen 3, flat The return mechanism 4 is installed between the mesh belt flat return screens, and the mesh belt flat return screen comprises a large medium mesh belt flat return screen 31 and a small miscellaneous net belt flat return screen 32, the large and medium miscellaneous The mesh belt screen and the small miscellaneous net screen are connected to the driving mechanism 41, and the inclined meshing slides 5 are arranged between the upper and lower screen surfaces of the small mesh belts outside the bottom layer.
实施例1所述的网带平回筛，所述的大中杂网带筛位于小杂网带筛上方时，所述的大中杂网带筛与小杂网带筛之间装有导粮板6，所述的出杂滑板为一组相向布置的斜板，倾斜角度为3-10度，所述的斜板形成的凹面底部装有小杂出料机构7，位于底层的所述的小杂网带筛的出杂滑板为收集板8。The mesh belt flat back sieve described in Embodiment 1 is provided with a guide between the large and medium mesh belt screen and the small miscellaneous mesh belt screen when the large medium and medium mesh belt screen is located above the small miscellaneous mesh belt screen. The grain board 6 is a set of inclined plates arranged to face each other at an inclination angle of 3-10 degrees, and the concave bottom formed by the inclined plate is provided with a small miscellaneous discharging mechanism 7 at the bottom layer. The small miscellaneous net with the screen of the sifting skateboard is the collecting plate 8.
实施例1或2所述的网带平回筛，所述的网带筛的筛面两侧平行布置有链条9，所述的链条之间装有由筛片组成的筛面10；所述的小杂网带筛和大中杂网带筛分别具有网带运动的驱动机构，所述的小杂网带筛筛面倾角0-5度，所述的大中杂网带筛的筛面倾角为0-4度，所述的小杂网带筛链条上具有覆盖所述的链条的倒L形挡边11，所述的链条和所述的筛箱之间连接有挡料板12，或者两侧的所述的链条上具有与筛面垂直的挡边13。The mesh belt flat back screen according to the embodiment 1 or 2, wherein the mesh belt screen has parallelly arranged chain sides 9 on both sides of the screen surface, and the screen strips are provided with a screen surface 10 composed of sieve sheets; The small mesh screen and the large and medium mesh screen respectively have a driving mechanism for mesh belt movement, and the small mesh screen has a screen inclination angle of 0-5 degrees, and the sieve surface of the large medium mesh screen The angle of the inclined mesh is 0-4 degrees, and the small mesh belt screen chain has an inverted L-shaped rib 11 covering the chain, and a baffle plate 12 is connected between the chain and the screen box. Or the chain on both sides has a rib 13 perpendicular to the screen surface.
实施例1或2或3所述的网带平回筛，所述的筛面的横轴14穿过所述的链条或者替代所述的链条的销轴，所述的横轴之间通过铰接双环丝15构成筛面，所述的横轴端部装有螺帽16，特别是在直径小于4mm的所述的横轴端部装有管型螺帽17。The mesh belt flat return screen of embodiment 1 or 2 or 3, wherein the transverse axis 14 of the screen surface passes through the chain or replaces the pin of the chain, and the horizontal axis is hinged The double loop wire 15 constitutes a screen surface, and the end of the horizontal shaft is provided with a nut 16, and in particular, a tubular nut 17 is attached to the end of the horizontal shaft having a diameter of less than 4 mm.
实施例1或2或3所述的网带平回筛，所述的筛面为冲孔筛面或者铰接筛面或者编织筛面。The mesh belt flat screen according to embodiment 1 or 2 or 3, wherein the screen surface is a punched screen surface or a hinged screen surface or a woven screen surface.
实施例1或2或3或4或5所述的网带平回筛，所述的大中杂网带平回筛上下筛面中装有导流斜板18，所述的导流斜板高端位于进粮口一侧。The mesh belt flat back screen according to the embodiment 1 or 2 or 3 or 4 or 5, wherein the large and medium mesh belt flat return screen is provided with a deflecting swash plate 18 in the upper and lower screen surfaces, and the deflecting swash plate The high end is located on the side of the grain entrance.
实施例1或2或3或4或5所述的网带平回筛，所述的大中杂网带筛上下层筛面间具有粮食导出板19，或者所述的大中杂网带筛面为铰接垂片结构20，防止筛下粮食重复筛理。The mesh belt flat back sieve according to Embodiment 1 or 2 or 3 or 4 or 5, wherein the large medium mesh screen has a grain exporting plate 19 between the upper and lower screen faces, or the large medium mesh screen The surface is an articulated tab structure 20 to prevent repeated screening of the undersize grain.
实施例1或2或3或4或5或6或7所述的网带平回筛，所述的小杂出料机构为螺旋出料机构71，所述的小杂网带筛筛孔数目为筛分物通过数目的60-80％，所述的大杂网带筛的筛孔数目为筛分物通过数目的2-15倍；所述的导流斜板为小杂筛板21，所述的导流斜板下方具有小杂出料机构22。The mesh belt flat back screen of Embodiment 1 or 2 or 3 or 4 or 5 or 6 or 7, the small miscellaneous discharge mechanism is a spiral discharge mechanism 71, and the number of sieve holes of the small miscellaneous mesh belt For the number of sieve passages of 60-80%, the number of sieve holes of the large mesh belt sieve is 2-15 times the number of sieve passages; the guide swash plate is a small sieve sieve 21, A small miscellaneous discharge mechanism 22 is disposed under the deflector.
利用实施例1-8之一所述的网带平回筛进行粮食除杂的方法，启动网带筛工作的驱动机构41和筛箱平回运动的平回机构4，形成平回运动和网带直行运动的复合运动模式，将脱粒后的包括粮食在内的混合物的物料投入到小杂清理筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛下灰尘尘土秸秆细屑之类小杂物质导入收集仓；The method for removing grain by using the mesh belt flat back sieve described in one of Embodiments 1-8, starting the driving mechanism 41 of the mesh belt screening work and the flat returning mechanism 4 of the screen box moving back to form the flat return movement and the net The compound movement mode with straight motion, the material of the mixture including the grain after threshing is put into the small miscellaneous cleaning sieve, and the rolling of the dust and the straw is fined by the rolling of the bumps and the smooth back movement during the straight process of the mesh belt. Introducing small impurities into the collection bin;
包括粮食在内的大颗粒的筛余物料，经导料板23进入大中杂网带筛，所述的筛余物料在大中杂网带筛中通过网带直行过程中的颠簸和平回运动的滚动，筛下粮食并收集起来；The sieve material of the large particles including the grain enters the large and medium mesh screen through the guide plate 23, and the sieve material is bumped and moved back through the mesh belt in the large and medium mesh screen. Rolling, sifting the grain and collecting it;
筛余的大颗粒杂物，导入收集器，完成初步的粮食等收获物的清理除杂工作。The large amount of debris left in the sieve is introduced into the collector to complete the preliminary cleaning and removing work of the grain and the like.
一种利用实施例1-8之一所述的网带平回筛进行粮食除杂的方法，启动网带筛工作的驱动机构41和筛箱平回运动的平回机构4，形成平回运动和网带直行运动的复合运动模式，将脱粒后的包括粮食在内混合物的物料投入到大中杂网带筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛余的大颗粒杂物，导入收集仓，筛下的粮食和小杂进入到小杂清理筛中，通过网带直行过程中的颠簸和平回运动的滚动，筛下灰尘尘土秸秆细屑之类小杂物质导入收集仓，粮食作为筛余物进入粮仓。A method for removing grain by using a mesh belt flat back sieve according to any one of Embodiments 1-8, a driving mechanism 41 for starting the mesh belt screening operation and a flat returning mechanism 4 for moving the screen box to form a flat return movement. And the combined movement mode of the net with straight movement, the material of the mixture including the grain after threshing is put into the sieve of the large and medium mesh belt, and the rolling of the bumps and the flat back movement during the straight process of the mesh belt, the large particles of the sieve The sundries are introduced into the collection bin, and the grain and small miscellaneous grains under the sieve enter into the small miscellaneous cleaning sieve, and the rolling of the bumps and the flat back movement during the straight process through the mesh belt, and the small impurities such as dust, dust, straw and fines are introduced and collected. Warehouse, grain as a sieve residue into the granary.