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Roasted pellet sampling method and sampling container

A sampling container and pellet technology, which is applied in the field of roasted pellet sampling and sampling container, can solve the problem of inaccurate sampling points, etc., and achieve the effects of reducing safety accidents, reducing labor intensity, and facilitating detection and analysis

Inactive Publication Date: 2012-06-20
PANZHIHUA GANGCHENG GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the inaccurate sampling point of the existing roasted pellet sampling method, the technical problem to be solved by the present invention is to provide a roasted pellet sampling method and sampling container with controllable sampling point so as to achieve accurate sampling

Method used

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  • Roasted pellet sampling method and sampling container
  • Roasted pellet sampling method and sampling container
  • Roasted pellet sampling method and sampling container

Examples

Experimental program
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Embodiment

[0032] The effective heating area of ​​a certain grate machine 5 is 35 meters × 4 meters, the cloth thickness is 180mm-200mm, and the particle size of green pellets is 10-12mm.

[0033] like Image 6 and Figure 7As shown, use a pipe with a diameter of 108mm to cut a section of circular pipe with a diameter of 200mm as the side wall 2; cut a 10mm thick iron plate into a circular plate with a diameter of 108mm as the bottom plate 1, and use a steel bar with a diameter of 10mm to bend it into a circular pipe with a diameter of 110mm. For the handle 4 with a height of 60 mm, an arc bend 41 with a diameter of about 12 mm is made in the center of the handle 4; a number of strip holes with a spacing of 12 mm and a width of 10 mm are milled out on the cut circular tube and the circular plate with a milling machine as Vent 3, leave a solid part with a width of 8 to 10 mm between the strip hole and the edge, and a solid part with a width of 10 mm in the middle of the round tube to ens...

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Abstract

The invention discloses a roasted pellet sampling method and a sampling container which can realize controllable sampling points and accurate sampling. The sampling method is characterized in that open sampling containers are placed at an entrance from which green pellets enter a grate, air vents are arranged on the bottom plates and the side walls of the sampling containers, the green pellets are randomly placed in the sampling containers during material distribution, the sampling containers are taken out from the manhole of the grate when the sampling containers reach preset detection positions with the operation of the grate, the sampling containers can be placed batch by batch and the sampling containers of the same batch can be taken out from different preset detection positions. The sampling container is an open container which comprises a bottom plate and a side wall. Evenly distributed air vents are arranged on the bottom plate and the side wall. By using the roasted pellet sampling method and the sampling container, pellet samples at any position of a material layer can be accurately obtained, the detection and the analysis of the pellets are facilitated, the labor intensity of working personnel can be reduced and the production safety is improved.

Description

technical field [0001] The invention relates to a method for sampling roasted pellets and a sampling container. Background technique [0002] In the grate machine-rotary kiln pellet production process, after the raw materials of iron ore powder are dried, moistened, pelletized, screened and other processes, TFe reaches 55-56% and FeO reaches 22-23% by weight. , the water content is 9-10%, the compressive strength is 7-9N, and the particle size is 10-12mm. For the finished pellets required for blast furnace smelting, the higher the TFe index, the lower the FeO index, the higher the resistance The higher the compressive strength index, the better the pellet quality. The process of green pellets from preheating and roasting to oxidation and cooling is the evolution process of the relevant chemical and physical indicators of the pellets. After the preheating and roasting process from 30°C to 1100°C, TFe will drop to 54-55%, FeO will drop to 12-14%, the moisture will gradually ...

Claims

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Application Information

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IPC IPC(8): G01N1/04
Inventor 谢茂辉杜春燕覃柳强
Owner PANZHIHUA GANGCHENG GROUP
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