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Rotary returned powder sampler

A sampling machine and rotary type technology, applied in the field of sampling machines, can solve the problems of large sampling volume, slow sampling speed, pollution, etc., and achieve the effects of improved accuracy, strong representativeness, and convenient maintenance

Inactive Publication Date: 2009-11-04
唐承祯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 2. The sampling head and receiving trough of the reciprocating slide type and horizontal sampling machine cannot be equipped with a closed device. The dust formed during the feeding of the belt conveyor will fall into the sampling device during the entire operation process, and the sample will be polluted, which will directly lead to interception. Inaccurate sample test results
[0005] 3. Ordinary sampling machines are large in size, slow in sampling speed, and large in sampling volume. After sampling, the required sample must be divided once or twice before the sample is obtained. The discarded material after the division must be returned to the silo, and the process is cumbersome.

Method used

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Examples

Experimental program
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Embodiment Construction

[0021] Such as Figure 1 to Figure 3 A specific embodiment is shown, which includes motor and reducer 1, frame 2, sampling nozzle 3, coupling 4, transmission shaft 5, limit switch 6, bearing with seat 7, cover plate 8, time control devices and electrical control systems.

[0022] Such as figure 2 As shown, the frame 2 includes four legs and a box body, and the box body is fixed on the four legs. The motor and the reducer 1 are fixed on the top surface of the box body of the frame 2, and the box body of the frame 2 is fixed with two seated bearings 7 arranged up and down, and the transmission shaft 5 is arranged in the two seated bearings 7, The motor is connected with the reducer, and the reducer is connected with the upper end of the transmission shaft 5 through a coupling 4 .

[0023] Such as figure 2 , image 3 As shown, the sampling nozzle 3 includes a vertical pipe and a tank body, the tank body is fixed on the vertical pipe, and one end of the tank body communicat...

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Abstract

The invention discloses a rotary returned powder sampler. The sampler comprises a power device, a frame, a sampling nozzle and a transmission shaft, wherein the power device is arranged on the frame and drives the sampling nozzle to rotate through the transmission shaft; and a feeding port of the sampling nozzle has a closed state and an open state when the sampling nozzle rotates. The rotary returned powder sampler has the advantages that the feeding port only opens in the sampling process and is in the closed state in the unsampling process so as to prevent outside dust from entering the sampling nozzle; moreover, because the sampling process is finished in a completely closed state, a sample is free from dust pollution so as to improve sampling accuracy.

Description

technical field [0001] The invention relates to a sampling machine, in particular to a sampling machine for iron-making blast furnace sinter powder return in a steel plant. Background technique [0002] The fines return rate of ironmaking blast furnace sinter in iron and steel plant is one of the important factors affecting the cost of the iron front area, and the fines return rate is obtained through sampling and measurement analysis, so the accuracy of powder return under the sieve and sampling inspection is of great importance to the blast furnace center Production plays an important role. The intrusion of foreign dust cannot be avoided during the sampling process of ordinary sampling machines, which leads to inaccurate inspection results. According to the technical requirements for sampling inspection of powder returned under the sinter sieve, ordinary sampling machines can no longer meet the requirements: [0003] 1. Ordinary sampling machines are divided into two types...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/10G01N1/20
Inventor 张瑞堂冯会玉刘磊甘宪文唐富国
Owner 唐承祯