Novel liquid gas vertical flue slag removal device

By using high-temperature resistant cracking pipes and PE conduits to transport liquid gas in the vertical flue of non-ferrous metallurgical furnaces, combined with fiber media and ignition equipment, the problems of complex, time-consuming and labor-intensive slag removal methods in the existing technology have been solved, achieving efficient and low-cost slag removal.

CN223985600UActive Publication Date: 2026-03-10JIANGXI COPPER GUOXING (YANTAI) COPPER CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

The existing vertical flue slag removal methods for non-ferrous metallurgical furnaces and kilns have problems such as complex management of blasting explosives, long approval time, and time-consuming and labor-intensive manual and mechanical slag removal with low efficiency.

Method used

Liquid gas is transported through a PE conduit inside a high-temperature resistant fracturing tube. The liquid nitrogen and oxygen and moisture in the air are absorbed by the fiber medium to form crystals. The crystals are ignited by an ignition device to raise the temperature of the inner hole, generating pressure to fracture the slag. This is combined with the automatic control of the liquid storage tank and the control center.

Benefits of technology

It achieves the goals of eliminating the need for management and approval, saving time and effort, reducing costs, improving slag removal efficiency, and reducing the labor intensity of workers.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223985600U_ABST
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Abstract

The utility model relates to a novel liquid gas vertical flue slag removal device, which belongs to the technical field of non-ferrous metallurgical furnace flue slag removal, and comprises a high-temperature-resistant fracturing pipe, an inner hole is arranged in the high-temperature-resistant fracturing pipe, a PE (polyethylene) guide pipe for conveying liquid gas and a plurality of fiber media are arranged in the inner hole, the PE guide pipe penetrates through the centers of the fiber media, and the fiber media penetrate through the PE guide pipe. An inner hole is formed in the PE guide pipe, an ignition device is arranged at the upper end of the inner hole, a hole plug for sealing is arranged on the inner hole, and an exhaust pipe penetrating through the high-temperature-resistant fracturing pipe is arranged on the high-temperature-resistant fracturing pipe. The fiber medium is ignited through ignition equipment, so that the temperature of an inner hole rises, crystals are suddenly gasified, slag is broken through generated pressure, management and approval are not needed, time and labor are saved, meanwhile, the labor intensity of workers is relieved, cost is reduced, and the slag removal efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a novel liquid gas vertical flue slag removal device belongs to nonferrous metallurgical furnace kiln flue slag removal technical field. BACKGROUND

[0002] The vertical flue slag removal mode of the nonferrous metallurgical furnace kiln includes explosive blasting and cannon hammer knocking, wherein the explosive blasting mode exists the problems that the explosive blasting needs strict management, leads to high management and preservation cost, and needs long approval time; wherein the artificial mechanical deslagging exists the problems of time and labor consumption, low deslagging efficiency, so it is very important to develop a novel liquid gas vertical flue slag removal device. SUMMARY

[0003] The utility model provides a novel liquid gas vertical flue slag removal device in view of the above existing technology.

[0004] The utility model solves the technical scheme as follows:

[0005] A novel liquid gas vertical flue slag removal device, including high temperature resistant cracking pipe, be equipped with the inner hole in high temperature resistant cracking pipe, be equipped with the PE pipe and a plurality of fiber medium for conveying liquid gas in inner hole, and the PE pipe is through the center of fiber medium, be equipped with ignition equipment on the inner hole upper end, be equipped with the hole plug for sealing on the inner hole, be equipped with the exhaust pipe through high temperature resistant cracking pipe on high temperature resistant cracking pipe.

[0006] Further, the inner hole wall is provided with an ice film.

[0007] Further, one end of the PE pipe is through the center of the fiber medium and deep into the bottom of the inner hole, and the other end is connected with the liquid storage tank.

[0008] Further, the liquid storage tank is electrically connected with the control center.

[0009] Further, the PE pipe is provided with a control valve.

[0010] Further, the ignition device includes an igniter, the igniter is provided with a tungsten wire connected by a refractory wire, and the tungsten wire is located at the upper end of the inner hole.

[0011] Further, the igniter and the control valve are electrically connected with the control center.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This application introduces liquid gas through a PE conduit, and the liquid nitrogen and oxygen are absorbed by the fiber medium and combined with the moisture in the air to form crystals. The fiber medium is ignited by an ignition device, which raises the temperature of the inner hole and causes the crystals to suddenly vaporize. The pressure generated causes the slag to break up. No management or approval is required, which saves time and effort, reduces the labor intensity of workers, lowers costs, and improves slag cleaning efficiency. Attached Figure Description

[0013] Fig. 1 This is a schematic diagram of the structure of this utility model.

[0014] Fig. 2 This is the electrical schematic diagram of this utility model.

[0015] In the diagram, 1. High-temperature resistant cracking tube; 2. Ice-coated pressure film; 3. Inner hole; 4. Fiber medium; 5. PE conduit; 6. Storage tank; 7. Tungsten wire; 8. Fire-resistant wire; 9. Ignition device; 10. Control valve; 11. Control center; 12. Exhaust pipe. Detailed Implementation

[0016] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0017] like Figs. 1-2As shown, a novel liquid gas vertical flue cleaning device includes a high-temperature resistant fracturing tube 1. The high-temperature resistant fracturing tube 1 has an inner hole 3. The inner hole 3 contains a PE conduit 5 for conveying liquid gas and several fiber media 4. The PE conduit 5 passes through the center of the fiber media 4. An ignition device is provided at the upper end of the inner hole 3. A sealing plug is provided on the inner hole 3. An exhaust pipe 12 passes through the high-temperature resistant fracturing tube 1. Before applying this application, a bridge is first built above the flue opening. A high-temperature waterless down-the-hole drill is used to drill holes around the vertical flue. Then, the high-temperature fracturing tube 1 is placed into the drilled hole. The main parameters are: single-hole fracturing, hole diameter 60mm, high-temperature fracturing tube 1 diameter 40mm, hole depth 1.5m. The relevant parameters can also be adjusted according to actual needs. The ignition device, PE conduit 5 and fiber medium 4 are placed into the inner hole 3 and sealed with a hole plug. The hole plug material is soft clay. The PE conduit 5 is connected to the liquid gas. The fiber medium 4 is a toilet paper roll, organic matter or carbon material, etc. The liquid gas is transported into the inner hole 3. The saturation of liquid nitrogen and oxygen in the inner hole 3 is observed through the exhaust pipe 12. The fiber medium 4 absorbs liquid nitrogen and oxygen. The liquid nitrogen and oxygen are at a very low temperature. The solidified fiber medium 4 and moisture in the air form crystals. The ignition device ignites the fiber medium 4. The temperature of the inner hole 3 rises and the crystals suddenly vaporize. The pressure generated causes the slag to break. The flue cleaning structure proposed in this application requires no management or approval, saving time and effort while reducing the labor intensity of workers, lowering costs, and improving cleaning efficiency.

[0018] An ice-coating membrane 2 is provided on the wall of the inner hole 3. The ice-coating membrane 2 can effectively prevent moisture from condensing into ice on its surface.

[0019] One end of the PE conduit 5 passes through the center of the fiber medium 4 and extends to the bottom of the inner hole 3, while the other end is connected to the storage tank 6. The storage tank 6 is electrically connected to the control center 11. Liquid nitrogen and oxygen are introduced into the high-temperature resistant fracturing tube 1 in a specific ratio using the pressure inside the storage tank 6. When the fiber medium 4 in the inner hole 3 becomes saturated with liquid nitrogen and oxygen, blue gas will appear in the exhaust pipe 12. Simultaneously, the level gauge and pressure sensor of the storage tank 6 are observed, and the control center 11 calculates the flow rate. The storage tank 6 is a liquid nitrogen and oxygen Dewar canister with a nominal volume of 499L, an inner liner test pressure of 5MPa, and a working pressure of 2.5MPa. The storage tank 6 is equipped with an automatic pressure relief device (critical value 2.5MPa), a manual pressure relief valve, an inlet valve, an exhaust valve, a pressure gauge, and a liquid nitrogen and oxygen capacity gauge.

[0020] The PE conduit 5 is equipped with a control valve 10. The ignition device includes an igniter 9, which has a tungsten wire 7 connected by a fire-resistant wire 8. The tungsten wire 7 is located at the upper end of the inner hole 3. Both the igniter 9 and the control valve 10 are electrically connected to the control center 11. The control center 11 controls the igniter 9 to ignite the gas and controls the control valve 10 to introduce liquid gas.

[0021] This application introduces liquid gas through a PE conduit 5, which absorbs liquid nitrogen and oxygen through a fiber medium 4 and combines with moisture in the air to form crystals. The fiber medium 4 is ignited by an ignition device, which raises the temperature of the inner hole 3, causing the crystals to suddenly vaporize. The resulting pressure causes the slag to break up. This process requires no management or approval, saves time and effort, reduces the labor intensity of workers, lowers costs, and improves slag cleaning efficiency.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of liquid gas vertical flue slag removal device, comprising a high-temperature-resistant cracking pipe (1), characterized in that: The high-temperature-resistant cracking tube (1) is internally provided with an inner hole (3), the inner hole (3) is internally provided with a PE pipe (5) for conveying liquid gas and a plurality of fiber media (4), the PE pipe (5) penetrates the center of the fiber media (4), the upper end of the inner hole (3) is provided with an ignition device, the inner hole (3) is provided with a hole plug for sealing, the high-temperature-resistant cracking tube (1) is provided with an exhaust pipe (12) penetrating the high-temperature-resistant cracking tube (1), and the wall of the inner hole (3) is provided with an ice-coating pressure film (2).

2. The novel liquid gas vertical flue ash removal device according to claim 1, characterized in that: One end of the PE pipe (5) penetrates the center of the fiber media (4) and extends into the bottom of the inner hole (3), and the other end is connected with a liquid storage tank (6).

3. The novel liquid gas vertical flue ash removal device according to claim 2, characterized in that: The liquid storage tank (6) is electrically connected with a control center (11).

4. The novel liquid gas vertical flue ash removal device according to claim 1, characterized in that: The PE pipe (5) is provided with a control valve (10).

5. The novel liquid gas vertical flue ash removal device according to claim 4, characterized in that: The ignition device comprises an igniter (9), the igniter (9) is provided with a tungsten wire (7) connected through a fire-resistant wire (8), and the tungsten wire (7) is located at the upper end of the inner hole (3).

6. The novel liquid gas vertical flue ash removal device according to claim 5, characterized in that: The igniter (9) and the control valve (10) are electrically connected with the control center (11).