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Automatic vacuum low-temperature coal sample drying device

A drying device, vacuum and low temperature technology, applied in heating devices, drying solid materials, local agitation dryers, etc., can solve the problems of increasing coal sample oxidation, easy to oxidize coal samples, manual mixing is difficult to mix uniformly, etc., to achieve increased heating area, the effect of avoiding oxidation

Active Publication Date: 2017-09-26
浙江章华保健美发实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, in the process of drying coal samples with a thickness of 3 mm, infrared drying is usually used. The drying efficiency of this method is average, and the infrared drying method is easy to oxidize coal samples, which cannot effectively protect the characteristics of coal samples. During the process, the risk of coal sample oxidation will be increased due to exposure to air
The usual drying of coal samples requires manual feeding and flattening, which increases the difficulty of operation and makes it difficult to mix evenly by manual mixing.

Method used

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  • Automatic vacuum low-temperature coal sample drying device
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  • Automatic vacuum low-temperature coal sample drying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to Figure 1-2 , figure 1 A schematic cross-sectional view of an automatic vacuum low-temperature coal sample drying device provided by the present invention; figure 2 A block diagram of an automatic vacuum low-temperature coal sample drying device provided by the present invention.

[0032] Specifically, an automatic vacuum low-temperature coal sample drying device includes a box body 1, a first drying chamber 2, a second drying chamber 3, a vacuum pump 4, a heating assembly 21, and a mixing chamber 5 and a control processor 6; The mixing chamber 5, the first drying chamber 2, and the second drying chamber 3 are sequentially connected horizontally, and a first closed door 7 is arranged between the mixing chamber 5 and the first drying chamber 2, and the first drying chamber 2 and the second drying chamber A second closed door 8 is arranged between the drying chambers 3, and the second drying chamber 3 is also provided with a sample outlet 9, and the top of the...

Embodiment 2

[0038] refer to Figure 3-4 , image 3 Schematic diagram of the tray section of the second automatic vacuum low-temperature coal sample drying device provided by the present invention; Figure 4 It is a block diagram of the second automatic vacuum low-temperature coal sample drying device provided by the present invention.

[0039] This embodiment is basically the same as the first embodiment, except that the mixing bin 11 , the electric stirring rod 12 , the tray 13 and the scraper 18 all have a smooth anti-stick coating.

[0040] As a preferred mode of the present invention, the upper surface of the tray 13 has evenly distributed undulating grooves 24 .

[0041] As a preferred mode of the present invention, the tray 13 is provided with heating wires 25 evenly distributed in the tray 13 , and the heating wires 25 are connected to the control processor 6 .

[0042] As a preferred mode of the present invention, the tray 13 enters the first drying chamber 2 and is heated by t...

Embodiment 3

[0049] refer to Figure 5-6 , Figure 5 A schematic sectional view of the third automatic vacuum low-temperature coal sample drying device provided by the present invention; Figure 6 A block diagram of the third automatic vacuum low-temperature coal sample drying device provided by the present invention.

[0050] This embodiment is basically the same as the first embodiment, except that the control processor 6 includes a timing chip 26, and the timing chip 26 is used to set the drying time.

[0051] As a preferred mode of the present invention, the vent pipe 22 communicates with an inert gas storage tank 27 .

[0052] As a preferred mode of the present invention, the discharge port is provided with a third closing door 28 .

[0053] Wherein, the timing chip 26 is used to set the drying time, and different operators set different drying times according to the types of coal samples.

[0054] Preferably, one end of the ventilation pipe 22 is communicated with the first dryin...

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Abstract

The invention discloses an automatic vacuum low-temperature coal sample drying device. The automatic vacuum low-temperature coal sample drying device comprises a box body, a first drying cavity, a second drying cavity, a vacuum pump, a heating assembly, and further comprises a mixing cavity and a control processor, wherein the mixing cavity, the first drying cavity and the second drying cavity are transversely connected in sequence; a first sealing door is arranged between the mixing cavity and the first drying cavity; a second sealing door is arranged between the first drying cavity and the second drying cavity; a sample outlet is further formed in the second drying cavity; a sample inlet is formed in the top of the mixing cavity; the mixing cavity is equipped with a mixing bin; an electric stirring rod, a tray and a scraper plate are arranged inside the mixing bin; the scraper plate is parallel to the tray with preset distance; an electric bin door is arranged on the bottom of the mixing bin; the electric stirring rod and the electric bin door are connected with the control processor; a gravity induction chip is arranged in the tray; the vacuum pump is connected with the first drying cavity; the heating assembly is arranged in the first drying cavity; a ventilating tube which communicates with outside is arranged in the first drying cavity; and a vent valve is arranged on the ventilating tube.

Description

technical field [0001] The invention relates to the field of coal sample drying, in particular to an automatic vacuum low-temperature coal sample drying device. Background technique [0002] In the process of sampling, sample preparation, and testing of coal in power plants, it is necessary to produce coal samples that meet the weight of national standards for testing. [0003] In the process of coal sample preparation, general coal samples need to go through processes such as crushing, mixing, shrinking, drying, and pulverization, and finally make a coal sample for analysis and testing with a particle size of less than 0.2 mm. Since the 0.2mm sample is in powder form and has strong adhesion, it is easily adsorbed on the surface of the pulverizer, and the powder sample with high water content cannot be removed from the adsorption surface, resulting in the mixing of the front and rear coal samples during the automatic sample preparation process, resulting in sample preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B5/04F26B9/00F26B23/00F26B25/00G01N1/28
Inventor 杨哲
Owner 浙江章华保健美发实业有限公司