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Scraper roller transport sieving method and its scraper roller transport sieving machine

A technology of scraper conveyor and screening machine, which is applied to conveyors, transportation and packaging, chemical instruments and methods, etc., and can solve the problems of low screening efficiency, easy damage, and inability to promote

Inactive Publication Date: 2007-10-17
唐山易通科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the coal preparation industry, especially in hydraulic coal mining, the scraper grading sieve, which is partially installed with a fixed sieve plate on the scraper conveyor, is used more and has not been finalized. The grading function is in one machine, the layout is convenient and flexible, etc., but because of the major shortcomings of the machine's low screening efficiency and easy damage to the block, it cannot be popularized

Method used

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  • Scraper roller transport sieving method and its scraper roller transport sieving machine
  • Scraper roller transport sieving method and its scraper roller transport sieving machine
  • Scraper roller transport sieving method and its scraper roller transport sieving machine

Examples

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Embodiment 1

[0039] Embodiment 1, in Fig. 3, a kind of single-product chain conveying type scraper roller transport screening machine, it comprises existing scraper conveyor main body (section enlarged as shown in Fig. 1, plane as shown in Fig. 2) and non-driven Roller sieve plate 8, the specific way is: remove the transport tank bottom plate 12 of existing scraper conveyor, and fixedly install non-driven roller sieve plate 8 on the supporting plate 3 originally fixed on the side plate 4 of the tank body. The installed non-driven roller sieve plate 8 is parallel to the lowermost moving surface of the scraper 7 of the scraper conveyor. During installation, it is also necessary to ensure that the uppermost plane of the non-driven roller sieve plate 8 cannot be higher than the lowermost moving surface of the scraper 7 . In the above solution, the non-driven roller screen plate 8 can also be various screen surfaces used in existing roller screens, and its principle, structure, and materials ca...

Embodiment 2

[0044] Embodiment 2, in Fig. 4, a kind of two-product graded upper chain conveying type scraper roller conveyance screening machine, wherein the principle, structure, materials used and functions of the scraper roller conveying screening machine are as described in embodiment 1 , the difference is that the sieve size of the roller sieve plate 8 on the second middle section 19 is larger than the sieve size of the roller sieve plate 8 on the first middle section 17, and in the lower groove of the first middle section 17 On the bottom plate 11 of the body 9, there is an undersize discharge opening near the second intermediate section 19.

[0045] When this embodiment works, the working steps, methods, principles, etc. are as described in Embodiment 1, the difference is that the materials are screened for the first product on the second middle section 19 . The undersize of the first product is discharged from the tail undersize discharge port. Screening of the second product is don...

Embodiment 3

[0047] Embodiment 3, in FIG. 5 , a non-driven roller screen surface, which is composed of rollers 13 , support bars 14 and thin shafts 15 . The cross-section of the support bars 14 is narrow and rectangular. They are used upright and arranged along the direction of material movement. The length of each of them is the same as that of the entire sieve plate. The eyelets of the shaft, the distance between the two eyelets is determined by the size of the grading granularity requirements and the roller 13. Described roller 13 is cylindrical roller, also has the eyelet that is suitable for wearing thin shaft at its center. Finally, the rollers 13 and the support bars 14 are spaced one by one through the thin shaft 15 to form pieces, the width of the formed piece reaches the width of the sieve plate, and the length reaches the length of the sieve plate. Numerous uniformly distributed square screen holes 20 are formed between the rollers 13 and the support bars 14 on the finished scr...

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Abstract

The invention discloses a scraper roller transportation screening method and a scraper roller transportation screening machine thereof, comprising an existing roller screening machine and its method and an existing scraper conveyer and its method, which structural characteristic is in that a conveying through bottom plate of the existing scraper conveyer is replaced by a screen surface of a scraper roller screen without drive. The method characteristic is in that material is screened by rotating randomly a roller, under a pushing force of the scraper moving on the screen surface of a scraper roller screen without drive. According to the invention, three functions of transporting, screening and feeding can be achieved by only one single machine, which has higher screening efficiency, less vibration and noise, is more available to screening clammy material, grading multiple produces on one machine, and being unite arranged with other devices, as well as has little elevation loss. Compared with vibrating screen, the invention further comprises advantages of firm structure, quiet and reliable work, convenience for collecting material under the screen, thus is a brand-new transportation screening method and equipment, which is suitable especially to treating raw coal in coal preparation industry.

Description

Technical field [0001] The invention relates to a classification method and its classification equipment, in particular to a scraper roller transport screening method and a scraper roller transport screening machine. Background technique [0002] At present, the roller sieving method and roller sieve used in ore dressing and coal preparation at home and abroad are like the book 102-106 of the second volume of the "Mineral Processing Handbook" which was printed and published for the third time in January 2006 by the Metallurgical Industry Press. Pages, and as stated on pages 22-24 of the book "Basic Knowledge of Coal Preparation Technology" published by Fuel Chemical Industry Press in October 1974, due to the complex structure and large power of the driving part, it is rarely used at present, but the screen ratio All current vibrating screens have the advantages of solid structure, quiet and reliable operation, no need for careful care, etc., and the advantages of high screen...

Claims

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Application Information

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IPC IPC(8): B07B1/14B07B1/46B65G19/00
Inventor 姚昆亮郭庆文周玉森赵春祥常建勇
Owner 唐山易通科技开发有限公司