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Raymond mill device with non-dust-accumulation draught fan

A Raymond mill and fan technology, applied in grain processing, etc., can solve the problems of personnel and equipment safety accidents, strong vibration, etc., and achieve the effects of reliable use, high strength, and material saving

Active Publication Date: 2015-11-04
JISHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once some hardened dust is shaken off by vibration, it will immediately leave the dynamic rotation balance of the fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

Method used

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  • Raymond mill device with non-dust-accumulation draught fan
  • Raymond mill device with non-dust-accumulation draught fan
  • Raymond mill device with non-dust-accumulation draught fan

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Embodiment Construction

[0032] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0033] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5The shown Raymond mill device in which the fan does not accumulate dust includes Raymond mill 1, cyclone separator discharger 2, fan A and equal pressure exhaust branch pipe 14, fan A, Raymond mill 1, cyclone separator discharger 2 and The return air duct 3 constitutes an airflow circulation milling and discharging system; the pressure equalizing exhaust branch pipe 14 is connected to the upper end of the cyclone pipe 10, and a plurality of cyclones C are arranged in the cyclone pipe 10, and the lower end of the cyclone pipe 10 is tangentially connected to the cyclone separator 11, and the cyclone The upper exhaust port of the separator 11 discharges purified air, and the lower nozzle is immersed in the liquid surface of the circulating water pool to realize liquid-sealed discharge, and the cir...

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PUM

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Abstract

The invention discloses a Raymond mill device with a non-dust-accumulation draught fan. An air flow circulation abrasive powder discharge system is formed by the draught fan, a Raymond mill, a cyclone separation discharge device and an air return air pipe. A pressure equalizing exhaust branch pipe is connected with the upper end of a cyclone pipe. A plurality of cyclones are arranged in the cyclone pipe. The lower end of the cyclone pipe is connected with a cyclone separator in the tangent direction. A lower pipe opening of the cyclone separator is soaked in a circulation pool which is connected with the upper end of the cyclone pipe. An impeller of the draught fan is of a structure that blades are in hollow reverse water drop shapes and a back plate is in a dish shape. The appearance contour line of the draught fan is an involute. According to the Raymond mill device, low-resistance pressure-equalized exhausting is achieved through the cyclone pipe and the cyclones, and therefore dust overflow caused by system positive pressure is eradicated. Wet-method efficient dust removal and mineral powder recycle are achieved through the circulation pool. By means of the structure that the blades are in the hollow reverse water drop shape and the back plate is in the dish shape, dust on the impeller of the induced draught fan is removed in real time, the strength of the impeller of the draught fan is improved, stability is enhanced, accidents caused by dust accumulation are effectively eradicated, and application prospects are wide.

Description

technical field [0001] The invention relates to a Raymond mill device, in particular to a Raymond mill device in which a fan does not accumulate dust. Background technique [0002] Raymond mill is a kind of equipment widely used in ore crushing and grinding. Due to its strong adaptability and high cost performance, it has become the first choice for ore crushing and grinding. Raymond mill is an air flow internal circulation type powder output, due to the expansion of heated gas during the crushing process, if the ore has a high water content or water enters, not only will the output of the powder be reduced, but also a large amount of gas will be caused by the vaporization of the water. swell. Therefore, all Raymond mills are equipped with pressure equalizing exhaust branch pipes to input excess gas into the bag filter for purification and discharge, so as to avoid dust leakage caused by positive pressure in the crushing system, but when the humidity of the bag is high, dus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02C23/34
Inventor 姚茂君银永忠张旭
Owner JISHOU UNIVERSITY
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