   Figure 24    Figure 25    Figure 26
Henan Weimeng Vibration Equipment Co., Ltd. (Wei Meng, the former state-owned Xinxiang Vibration Equipment Factory) produces ZSG-type high-efficiency heavy-duty vibrating screens, which are divided into single-layer and double-layer, each with 9 specifications and installation methods. The main features of the vibrating screen is a vibrating motor as a vibration source, which has a small size, light weight, high screening capacity, low energy consumption, simple structure, easy maintenance and attractive appearance can be widely used in metallurgy, mining, coal, electricity, building materials, refractory and other industries for bulk materials and in the fine fraction of material grading. The technical performance and parameters of the vibrating screen are listed in Table 21, and the outline and installation dimensions are shown in Figures 27 and 28.
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10. YKR circular vibrating screen ZKR and YKR series vibrating screens were produced by Nanfang in 1985 with the introduction of the former West German technology and combined with the actual situation in China. It has the international advanced level and is the company's fist product, which can replace imported products. It is widely used in coal, hydropower, mining, metallurgy, building materials, light industry, transportation and other departments to dry and wet grading, dehydration, de-mudging and de-intermediation of various materials.
Its characteristics are as follows:
1 Single and double-layer circular vibrating screen exciter is above the center of gravity, the movement track of the feeding end is ellipse, the ellipse long axis and the screen surface are at an acute angle, the material flow speed is fast, and the material is prevented from accumulating at the feeding end; the discharging end is The obtuse angle can slow down the material flow rate, check the screening effect, and the screen surface material is approximately equal thick and sieved, and the processing capacity can be increased by 1096. The three-layer circular vibrating shaker is located close to the center of gravity and is designed according to advanced foreign structures. The linear vibrating screen adopts advanced dual-motor self-synchronization technology, featuring low noise and easy maintenance. The amplitude, frequency and screen inclination of ZKR and YKR series sieves can be adjusted according to actual conditions.
2 The exciter adopts an external block eccentric structure, thereby improving the exciting force, reducing the weight of the exciter, thereby reducing the load of the bearing, reducing the dynamic load of the sieve machine, and reducing the over-resonance area of ​​the screen machine. The impact on the screening of the plant or foundation.
3 The connection between the side plate and the reinforcing plate, the beam and the reinforcing beam is all made of torsion-shear type high-strength bolt for steel structure (tensile stress is 900MPa), which is stronger than the ring groove rivet (tensile force is 300 MPa). Easy to replace, and avoid the phenomenon of extruding micro-cracks in the bolt holes due to improper riveting.
After the four beams are welded to the flanges at both ends and the sieve plate supporting device, the whole annealing is performed to eliminate the internal stress of the welding.
5The sieve machine supports the rubber spring. Compared with the metal spring, it has the advantages of long service life, corrosion resistance, stable over-resonance area, low noise and small impact on the foundation.
6 The motor and the exciter are connected by a flexible coupling, and the exciter is connected by a universal joint, which has the advantages of long service life.
The 7YKR and ZKR series vibrating screens are only available in more than one hundred specifications. The vibrators can adjust the number of eccentric blocks to meet different excitation requirements and adapt to various sizes of screens. High commutation and good versatility.
Ordering Information: The specifications of the screen machine, the size of the screen surface and the size and shape of the screen hole, the left and right loading forms, the installation angle and special requirements should be determined.
Model meaning example 2Y(Z) KR3060:2——double layer (single layer not marked), Y(Z)——round vibration (linear vibration), K——block eccentricity, R——flexible connection, 30—— Screen width (dm), 60 - screen length (dm). The technical parameters of the YKR circular vibrating screen produced by the South Mine are listed in Table 22, and the external dimensions are shown in Figures 29 and 30 and Tables 23 and 24, respectively.
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Table 23 Â Â Â Table 24
   Figure 34    Figure 35
11. STS type three-axis elliptical sieve and STDL type three-axis elliptical cold ore vibrating screen STS type three-axis elliptical vibrating screen is an innovative product of South Mine's digestion and absorption of foreign advanced technology. It is widely used in metallurgy, mining, construction, transportation, hydropower and other departments. Classify various materials. The sieve vibrator consists of three shafts with eccentric blocks, the movement track is elliptical, the processing capacity is large, the screening efficiency is high; the vibration amplitude, amplitude and vibration direction angle can be adjusted; because it is horizontal installation, the height of the sieve machine Small, it is the ideal equipment for the combined crushing and screening unit of sand and gravel plant. The technical parameters are listed in Table 25.
The STDL type cold ore vibrating screen produced by the South Mine is suitable for the classification of cold sintered ore with a temperature below 1500. The sieve surface of this series of sieves consists of three sections with different inclination angles, so that the thickness of the material layer is approximately equal in each section of the sieve surface; The principle of shaft drive and forced synchronous excitation, the movement of the sieve box is elliptical. The elliptical equal-thickness screening facilitates the forward transport, stratification and permeable of the material on the screen surface, so it has a larger throughput and screening efficiency than the ordinary linear sieve and the circular motion sieve. It adopts secondary vibration isolation and rubber composite spring and synchronizer structure. The technical parameters are listed in Table 26.
12. Other round vibrating screen The YFS series circular vibrating grading screen produced by the long hair mining machine is a fine-grained sieving which applies the probability principle and the circular vibration to the mineral at the same time. The utility model adopts the circular vibration to make the screen wire generate a false-to-thickness phenomenon, thereby expanding the probability effect of the screening, that is, the large sieve hole can be adopted, the sieve hole is not easy to be blocked, and the production efficiency is high. Due to the circular vibration, the sieve only needs single-axis excitation, so the structure is simple, the weight is light, the noise is small, and the maintenance is convenient. This equipment can be used for screening various materials and the moisture content of the materials is not limited. The technical parameters are shown in Table 27. [next]
The GXS high-efficiency fine-grained raw coal grading sieve produced by Tangshan Branch is suitable for dry-depth screening of various minerals with high water content and fine-grain content. Suitable for pre-grading or final screening of materials with a feed size of 0~10mm. The sieve machine adopts high-vibration and large amplitude motion trajectories. The second layer screen adopts a string-type wire rope screen, and the screen mesh randomly generates secondary vibration, which is not easy to block the screen hole, and has strong self-cleaning ability. The sieve machine has reasonable design, large rigidity and stable and reliable operation. Low noise, light weight, flexible installation, both hanging and seated. When the sieve machine treats raw coal with a particle size of 0~50mm (-6mm, about 60%) and external moisture of 7.2%~11.5%, the total screening efficiency is about 70%. The technical parameters are shown in Table 28.
The YZ-type circular vibrating screen produced by Shangjian and Shanghai Minong Machinery Co., Ltd. (hereinafter referred to as the “Complete Machineryâ€) adopts the most advanced rivet technology in the world to make the screen box, which not only solves the high frequency vibration of the bolted screen box. It is easy to loosen and easy to assemble and disassemble, so that it has a long service life. Suitable for screening operations in various mining and sand and gravel industries. The technical parameters are listed in Table 29.
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ZSG series high-efficiency heavy-duty screen is a new type of screening equipment developed by Xinyuan City Zhenyuan Machinery Equipment Co., Ltd. (hereinafter referred to as Zhenyuan Machinery). It is widely used in metallurgy, mining, coal, electric power, building materials, fire resistance and other industries. Screening and grading of bulk materials and small and medium granule materials. The technical parameters are shown in Table 30.
Other various vibrating screens produced by the South Mine are listed in Table 31.
In addition to the various circular vibrating screens described above, there are other types of circular vibrating screens, the technical performance of which is shown in Table 32.
Table 31, 32
TY2065 horizontal self-synchronizing elliptical vibrating screen is single-layer and seat type. It has higher efficiency and higher processing capacity than other linear vibrating screens of the same specification. The screen structure is stainless steel welded screen, and the motor can be installed on the left or right side. Suitable for dry and wet grading of medium and fine granule materials.
FQ1224 composite vibrating screen is single-layer and seat type. The shape, amplitude and vibration frequency of the motion track are different everywhere. It is suitable for classification, dehydration and de-intermediation of ore, coal and other medium-fine particles. A woven screen is generally used. Its external dimensions are shown in Figure 31. Zheng Mine produces a HFQ-type thick composite vibrating screen.
The trajectory of the SBZ 2 1250×3000 eccentric semi-vibrating screen is approximately round, the screen surface is double-layered, the upper layer is made of punched sieve plate, the lower layer is made of woven screen, the hanging type and the seat type can be installed, the motor can be installed on the left side or Right. Suitable for grading of medium-grained materials.
SXG1600×37 million can suspend the sieve movement track as round, the mesh structure is metal rod or punching screen, the motor can be installed on the left or right side, suitable for the classification of medium and slightly larger granular materials.
ZD 2 -16 raw coal grading vibrating screen has a circular trajectory. It is made up of two sieve machines installed at different inclination angles. It can be sieved by equal thickness, with better screening effect and high processing capacity. It is suitable for large coal mines and large scales. The power plant classifies the raw coal. The screen is a socket type, a single-layer screen surface, using an iron sieve grate.
ZT type single-axis vibrating screen has three kinds of specifications. It is a new product developed by Ningxin Factory to absorb foreign advanced technology. It is a single-layer, seat-mounted, stainless steel screen and rubber ball with rapping screen. Suitable for the classification of a variety of medium and fine grain materials.
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