High temperature-keeping screw conveyor

A screw conveyor, high temperature technology, used in the field of high temperature bulk material conveying and blanking control, can solve the problems of inability to convey, blank and heat preservation, achieve improved service life, good strength and wear resistance, and solve timing and quantitative The effect of conveying and blanking problems

Inactive Publication Date: 2011-08-03
CHINA NAT HEAVY MACHINERY RES INSTCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the shortcomings of traditional screw conveyors that cannot transport, feed and heat-preserve high-temperature thermal direct reduction iron, the present invention provides a high-temperature heat-preservation screw conveyor. At the same time of heat preservation, it can also realize the timing and quantitative feeding of high-temperature materials

Method used

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Experimental program
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Effect test

Embodiment 1

[0014] figure 1 , figure 2 and image 3 It is an embodiment disclosed by the invention. The front part of the cylindrical casing 19 of the high-temperature heat preservation screw conveyor is provided with a feed inlet 5, and the rear part of the cylindrical casing 19 is provided with a discharge port 17. The cylindrical casing 19 The weighing module 16 is arranged at the bottom of the cylinder, and the auger 7 is arranged in the cylindrical casing 19 . The cylindrical casing 19 is composed of a bushing 6 and two layers of stainless steel chambers 8, the bushing 6 is made of high temperature and wear-resistant metal material, and the outside of the bushing 6 is two layers of high temperature resistant stainless steel chambers 8 The two layers of stainless steel cylinder chambers 8 are connected by ring-shaped support partitions 18, the layer near the bushing 6 is an air layer, and the layer near the cylindrical casing 19 is an insulating layer 9 filled with aluminum silicat...

Embodiment 2

[0019] figure 1 , image 3 and Figure 4 It is another embodiment disclosed by the present invention. The structure of the high-temperature heat preservation screw conveyor is basically the same as that of Embodiment 1, the difference is that: the feed inlet 5 is arranged at the rear of the cylindrical casing 19, and the outlet 17 is arranged At the front of the cylindrical casing 19 (see figure 1 Feed inlet, dotted line position of discharge outlet), the central axis of auger 7 in the cylindrical casing 19 is provided with cooling channel c, and the blade is a solid structure.

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Abstract

The invention discloses a high temperature-keeping screw conveyor. A cylindrical shell (19) consists of a bushing (6) and two layers of stainless steel cylinder cavities (8), wherein the front end of the cylindrical shell (19) is welded with a front heat-isolating layer (4) and a front sealing plate (3); the rear end of the cylindrical shell (19) is welded with a rear sealing plate (11) and a rear heat-isolating layer (10); a central shaft of an auger (7) is connected with an output shaft with a motor speed reducer (13) through an elastic sleeve coupler (12); cooling water passages are formedin the central shaft and a blade of the auger (7); and a weighing module (16) is arranged on the lower part of the cylindrical shell (19). The high temperature-keeping screw conveyor has heat-isolating and protecting effects on a power transmission mechanism and prolongs the service life of the transmission mechanism. In order to achieve transfer control, the regularly and quantificationally conveying and blanking of high-temperature scattered materials are achieved through the arranged weighing module (16); and the high temperature materials can be sealed and subjected to heat preservation while being conveyed.

Description

technical field [0001] The invention belongs to the technical field of high-temperature bulk material conveying equipment, and relates to a conveying device for controlling the feeding of thermal direct reduction iron at a high temperature of 700°C. The conveying device is also suitable for conveying high-temperature bulk materials in industries such as coal, metallurgy, and chemical industry And blanking control. Background technique [0002] There are many advantages to having a direct reduced iron plant adjacent to a steel mill. However, one of the challenges faced is the delivery of thermal DRI. In order to save energy, avoid energy waste and ensure high economic benefits, the temperature loss must be minimized, which requires the conveying equipment to have the function of heat preservation. On the other hand, thermal DRI is very easy to oxidize, that is, it is easy to burn, so it is necessary to avoid contact between thermal DRI and oxygen, which requires sealing of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65G33/24B65G33/26B65G33/14
Inventor 白明华张少壮葛俊礼
Owner CHINA NAT HEAVY MACHINERY RES INSTCO
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