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Large-scale pitch sphere oxidation non-fusible preparation process and device

An oxidation infusible, preparation process technology, applied in the chemical processing of tar pitch/petroleum pitch/natural pitch, etc., can solve problems such as damage, damage to asphalt ball gloss, poor pitch ball strength, etc., to achieve the effect of increasing production capacity

Active Publication Date: 2015-09-23
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this patent successfully avoided the ignition problem in the asphalt oxidation process, and the uniformity and production capacity of the oxidized and unmelted asphalt balls have been improved to a certain extent, but limited by the method and device provided, it is obvious that the uniformity and production capacity are not enough. There is a lot of room for improvement
In addition, due to the poor strength of the asphalt ball itself, the use of a rotary furnace will damage or even damage the gloss of the asphalt ball

Method used

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  • Large-scale pitch sphere oxidation non-fusible preparation process and device
  • Large-scale pitch sphere oxidation non-fusible preparation process and device
  • Large-scale pitch sphere oxidation non-fusible preparation process and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033]An oxidation non-melting device, which includes a trolley, a power system, a furnace body 19, a push-pull compartment door 5, an electric heating plate 11, an air inlet and outlet system, and is characterized in that the trolley includes an annular screen frame 1, a screen frame shaft 2, and a quick coupling Shaft device 3, screen frame combination box 4, bottom screen frame combination box 6 with wheels and turbine 7, screen frame combination box 4 is 4, there is an annular screen frame 1 inside, and the annular screen frame 1 is connected with the screen frame combination box 4. The screen frame shaft 2 in the center is connected and rotates together with the screen frame shaft 2. The lower end of the top screen frame shaft 2 is fixed with a hollow upper half coupling 3b, and the lower half coupling 3a with a column core is connected to the lower layer The upper end of the screen frame shaft 2, and so on, is located at the lower end of the screen frame shaft 2 of the bo...

Embodiment 2

[0046] There are 13 trolley cabins stored, and 10 screen frame combination boxes 4, and all the other are with embodiment 1.

[0047] According to the method of the embodiment, the oxidation and non-melting of 50kg pitch balls of 0.5mm is carried out, and the residence time of each cabin is 0.5h, and the process parameters of each cabin are shown in Table 2:

[0048]

[0049] The cohesive rate of the product obtained after oxidation and non-melting is 0.6%.

Embodiment 3

[0051] There are 15 compartments for storing cars, and 15 screen frame combination boxes 4, and all the other are with embodiment 1.

[0052] According to the method of the embodiment, the oxidation and non-melting of 20kg asphalt balls of 1mm is carried out, and the residence time of each cabin is 1h, and the process parameters of each cabin are shown in Table 3:

[0053]

[0054] The cohesive rate of the product obtained after oxidation and non-melting is 0.5%.

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Abstract

A large-scale pitch sphere oxidation non-fusible preparation process comprises the following steps: pitch spheres are uniformly distributed on ring-shaped screen frames (1); screen frame combination boxes (4) are combined through quick couplers (3) to form trolleys; worms (8) rotate to enable the first trolley to enter a first trolley storage chamber from a waiting position (22); turbines (7) drive the ring-shaped screen frames (1) to rotate through screen frame shafts (2); a blower (P) extract fresh air from an air inlet manifold (21), so that all the trolley storage spaces are filled with preheated air; electrical heating plate components (11) are preheated to the preset temperature, so that pitch sphere oxidation non-fusible preparation can be started; when the preset oxidation non-fusible preparation time is up, the second trolley at the waiting position is pushed to the first trolley storage chamber while the first trolley is pushed to the second trolley storage chamber, then pitch sphere oxidation non-fusible preparation can be re-performed, and so on. The advantages that large-scale production can be realized and the glossiness of the pitch spheres is not damaged are achieved.

Description

technical field [0001] The invention belongs to a large-scale preparation process and a device for oxidizing and infusible asphalt spheres. Background technique [0002] Pitch-based spherical activated carbon is expected to be applied in many fields due to its regular spherical appearance and high carbon residue, which makes it have high crushing strength and wear strength. However, the preparation of spherical activated carbon is inseparable from the oxidation and non-melting of pitch balls, and in many patents about pitch balls, there are few methods for oxidation and non-melting of pitch balls, and there are even fewer corresponding devices. [0003] Judging from the patents that have been published so far, the patent specifically related to the oxidation and non-melting technology and device of asphalt balls is the patent of CN201310227294.7 "Method for Oxidation and Non-melting of Pitch Balls" invented by the inventor. In this patent, the oxidative non-melting method a...

Claims

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Application Information

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IPC IPC(8): C10C3/04
CPCC10C3/04
Inventor 李开喜朱星明
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI