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Non-stop maintenance method for flame path of petroleum coke calcining furnace

A petroleum coke and calcining furnace technology, applied in chemical instruments and methods, furnaces, furnace types, etc., can solve the problems of time-consuming, high maintenance cost, labor consumption, etc., to avoid high-temperature baking, improve safety, and improve efficiency. The effect of using space

Pending Publication Date: 2020-12-01
SHANDONG ZHONGYANG CARBON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above-mentioned problem that the furnace needs to be shut down for maintenance during the maintenance of the flue path of the calciner, which is time-consuming, labor-intensive and high in maintenance costs, the present invention provides a non-stop maintenance method for the flue path of the petroleum coke calciner. When the silicon carbide prefabricated part matched with the channel size needs to be repaired, the silicon carbide prefabricated part can be directly pushed into the designated position, which is convenient and fast, without shutting down the furnace and not delaying normal production

Method used

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  • Non-stop maintenance method for flame path of petroleum coke calcining furnace
  • Non-stop maintenance method for flame path of petroleum coke calcining furnace
  • Non-stop maintenance method for flame path of petroleum coke calcining furnace

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preparation example Construction

[0052] Further, the preparation method of the silicon carbide prefabricated block includes the following steps: selecting raw materials according to particle size requirements, proportioning ingredients and mixing, kneading with a mixer, injection molding, drying, degreasing, and sintering. The maximum temperature after firing is controlled at 1400-1500°C, which is higher than the maximum temperature of 1300°C in the fire channel.

[0053] see Figure 2-Figure 5 , the fire baffle 1 used in the above-mentioned maintenance method is a rectangular structure, the size is larger than the fire channel, and it is made of refractory material. The fire viewing window 2 is embedded above it for observing the movement of the hook 3 and the hook plate 4, and a track is set below The slot 5 is open at one end of the track slot 5 for the hook 3 to pass through.

[0054] Further, the track groove 5 includes a transverse track groove 51 and a vertical track groove 52. The upper end of the ve...

Embodiment 1

[0061] This embodiment is aimed at the situation that the damage to the fire channel is relatively light and the leakage of material is less.

[0062] Step 1: Making silicon carbide prefabricated blocks. Get the following raw materials in parts by weight: 38 parts of silicon carbide particle size sand, 42 parts of silicon dioxide, 2 parts of kaolin, 8 parts of metal silicon powder, 5 parts of kyanite, 2 parts of polyvinyl alcohol, 2 parts of sodium silicate, three parts Sodium polyphosphate 2 parts. Then select raw materials according to particle size requirements, mix ingredients in proportion, knead in a mixer, injection molding, drying, degreasing, and sintering. The maximum temperature after firing is controlled at 1400-1500°C, which is higher than the maximum temperature of 1300°C in the fire channel. The shape of the silicon carbide prefabricated block is shown in figure 1 As shown, the cross-sectional size is 250mm*170mm, the length is 0.8m, and the thickness is 15mm...

Embodiment 2

[0070] This embodiment is aimed at the general damage of the fire channel, and it is necessary to scrape off the scattered and leaked materials.

[0071] Step 1: Making silicon carbide prefabricated blocks. Take the following raw materials in parts by weight: 47 parts of silicon carbide particle size sand, 35 parts of silicon dioxide, 3 parts of kaolin, 8 parts of metal silicon powder, 7 parts of kyanite, 3 parts of polyvinyl alcohol, 3 parts of carboxymethyl cellulose , 3 parts of silica sol. Then select raw materials according to particle size requirements, mix ingredients in proportion, knead in a mixer, injection molding, drying, degreasing, and sintering. The maximum temperature after firing is controlled at 1400-1500°C, which is higher than the maximum temperature of 1300°C in the fire channel. The shape of the silicon carbide prefabricated block is shown in figure 1 As shown, the cross-sectional size is 250mm*170mm, the length is 1m, and the thickness is 16mm. The p...

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Abstract

The invention discloses a non-stop maintenance method for a flame path of a petroleum coke calcining furnace. The method comprises the following steps: 1, disassembling a flame observation opening ofthe flame path to be maintained, 2, taking a fire baffle (1) with the area larger than that of a fire bserving opening, arranging a rail groove (5) in the lower portion of the fire baffle (1), placinga hook (3) in a rail groove (5), fixing a hook plate (4) at the tail end of the hook (3), and enabling the hook (3) to extend into a material leaking point of the calcining furnace to scrape leaked materials out, 3, taking a silicon carbide precast block, and plugging the silicon carbide precast block into the flame path to be maintained from the flame observation opening disassembled in the step1, 4, adjusting the position of the silicon carbide precast block, and blocking a material leakage point of the calcining furnace, and 5, building the fire observation opening of the flame path to bemaintained again. According to the method, when maintenance is needed, the silicon carbide prefabricated part is directly pushed to the designated position, convenience and rapidness are achieved, furnace shutdown is not needed, and normal production is not delayed.

Description

technical field [0001] The invention relates to the technical field of petroleum coke calcination furnaces, in particular to a non-stop maintenance method for a fire channel of a petroleum coke calcination furnace. Background technique [0002] Calciner is a kind of thermal equipment for heat treatment of carbon raw materials (such as coke, anthracite, etc.) at high temperature to improve the performance of raw materials. Our company uses calcination furnaces to manufacture petroleum coke. Specifically, it uses tank-type calcination furnaces. A tank-type furnace is composed of several calcination tanks of the same size, arranged in two rows at the front and back, and each 4 tanks form a group. (Two tanks in the front and back rows), according to the production requirements, a tank furnace is generally composed of 4 to 7 groups of calcination tanks, and there are 6 to 8 layers of horizontal heating channels on the left and right sides of each calcination tank , the flame is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/565C04B35/14C04B35/622C01B32/00F27B17/00
CPCC04B35/565C04B35/14C04B35/622C01B32/00F27B17/00C04B2235/349C04B2235/428C04B2235/3463C04B2235/3427C04B2235/3201C04B2235/3418C04B2235/656C04B2235/9607C04B2235/96C04B2235/77
Inventor 马汝杰张永利
Owner SHANDONG ZHONGYANG CARBON CO LTD
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