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Anti-coking asphalt oxidation tower

A technology of oxidation tower and asphalt, which is applied in the direction of chemically processing tar asphalt/petroleum asphalt/natural asphalt, etc., which can solve the problem of uneven contact area between distributor and air, easy deposition of materials at the bottom of the tower body, and it is difficult to completely Contact and other problems, to achieve the effect of improving the oxidation effect, good oxidation effect, and increasing the contact area

Active Publication Date: 2020-02-28
广饶科力达石化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantage: The contact area between this kind of distributor and the air is uneven, it is difficult to achieve complete contact, and the distribution hole is easy to coke and block, the running time is short (3 to 6 months), and it must be shut down regularly for cleaning, which reduces work efficiency , which increases maintenance costs
In addition, since the falling speed of the asphalt in the tower remains unchanged, the contact time with the air is short, resulting in uneven oxidation, and the asphalt is stirred only by the upward force of the blast, the stirring effect is poor, the asphalt is not fully oxidized, and the material is easy to deposit. at the bottom of the tower

Method used

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  • Anti-coking asphalt oxidation tower
  • Anti-coking asphalt oxidation tower
  • Anti-coking asphalt oxidation tower

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to figure 1 , figure 2 and image 3 As shown, an anti-coking asphalt oxidation tower includes a tower body 1, an air inlet distributor, an asphalt distributor 11, an anti-coking device and an oxidized asphalt disperser.

[0026] Wherein, an asphalt feed port 2 and an exhaust port 3 are provided on the top of the tower body 1 , a motor 4 is provided on the top of the tower body 1 , and an oxidized asphalt outlet 5 is provided at the bottom of the tower body 1 . Of course, the outer surface of the tower body 1 is also provided with a heating structure for heating the asphalt, which is a known technology and will not be repeated here.

[0027] The above-mentioned air inlet distributor includes a horizontal air inlet pipe 6 and a vertical air inlet pipe 7 inside the tower body 1, wherein the horizontal air inlet pipe 6 is a plurality of cross-connected structures, such as forming a rice-shaped structure, and the vertical air inlet pipe 6 is a cross-connected struct...

Embodiment 2

[0032] The horizontal air inlet pipe 6 has a spiral structure, and the air outlets 10 are uniformly arranged on the horizontal air inlet pipe 6 . The spiral structure can make the compressed air evenly enter the tower body 1, distribute evenly, and oxidize evenly.

[0033]In addition, at least one air outlet 10 is provided on the vertical air inlet pipe 7 between two adjacent baffles 14 , and the anti-coking disc 13 is arranged above the air outlet 10 . In this way, air outlets 10 can be provided in the spaces between adjacent two layers of baffles 14, so as to meet the requirements of air intake at different positions in the tower, and can fully oxidize asphalt at different positions. On the one hand, it can mix asphalt with air. On the other hand, by controlling the wind speed, the flow direction of asphalt can be changed, thereby reducing the falling speed of asphalt, increasing the contact area between asphalt and air, and improving the oxidation effect.

[0034] The disp...

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Abstract

The invention discloses an anti-coking asphalt oxidation tower. The anti-coking asphalt oxidation tower comprises a tower body, an air inlet distributor, an asphalt distributor, an anti-coking deviceand an oxidized asphalt disperser. The air inlet distributor comprises a transverse air inlet pipe and a vertical air inlet pipe, and a plurality of air outlets are formed in the vertical air inlet pipe and the transverse air inlet pipe. The asphalt distributor is a distribution disc with an arc-shaped upper end surface. The anti-coking device comprises an umbrella cap cover and an anti-coking disc. The oxidized asphalt disperser comprises a plurality of baffles, the joints of the baffles and the tower body are obliquely arranged, dispersion plates are arranged on the two sides of the bafflesrespectively, the free ends of the dispersion plates are obliquely arranged downwards and form trapezoidal structures with the baffles, the baffles on the inner wall of the tower body are arranged inmultiple layers, and every two adjacent layers of the baffles are opposite in inclination direction and arranged in a staggered mode. Asphalt can be effectively prevented from being coked at the air outlet, the air outlet area is large, the contact area of the asphalt can be increased, the contact with the asphalt is uniform, and the oxidation effect is good.

Description

technical field [0001] The invention relates to asphalt production equipment, in particular to an anti-coking asphalt oxidation tower. Background technique [0002] Bitumen oxidation is today a bitumen production process in refineries. The asphalt production device has an asphalt oxidation tower. In order to improve the technical indicators such as asphalt softening point and penetration to achieve the performance of the product, air is blown into the asphalt tower. The purified air enters from the lower part of the tower, and the asphalt oil comes from the tower Entering from the upper part, the purification wind in the tower contacts with the asphalt oil countercurrently, so that it oxidizes and changes its composition, so that the softening point of the asphalt increases, and the penetration and temperature sensitivity decrease, so as to meet the requirements of asphalt specifications and performance. In order to make the purified air contact with the asphalt oil evenly,...

Claims

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Application Information

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IPC IPC(8): C10C3/04
CPCC10C3/04
Inventor 范兴涛刘国东
Owner 广饶科力达石化科技有限公司
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