Dry quenching box type coke powder cooling device

By designing a sealed box-type coke powder cooling device, the problems of easy clogging and leakage of water-cooled jackets were solved, achieving efficient and safe coke powder cooling, ensuring the stable operation of the dry quenching unit, and reducing maintenance frequency and economic losses.

CN223950956UActive Publication Date: 2026-02-27BAOTOU IRON & STEEL (GROUP) CO LTD
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Patent Information

Application Number
CN202423071323.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2026-02-27
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

The water-cooled bushings of existing dry quenching coke units are prone to clogging and leakage, leading to excessive hydrogen levels, posing an explosion risk, affecting production safety and efficiency, and causing long maintenance times and significant economic losses.

Method used

The dry quenching coke box-type coke powder cooling device is designed as a closed box structure, including heat conduction plates and flange connections. It is equipped with water phase flow channels and coke powder phase flow channels to increase the heat exchange area and flow area. It uses castable refractory for insulation and forms a circulating water flow in and out of the water header.

Benefits of technology

It improved cooling efficiency, reduced the probability of blockage and leakage, ensured the safe, efficient and stable production of the dry quenching unit, eliminated water-cooled jacket leakage, and reduced maintenance time and economic losses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a dry quenching box type coke powder cooling device which comprises an upper box plate and a lower box plate parallel to the upper box plate, a side wall is arranged between the upper box plate and the lower box plate, the upper box plate, the lower box plate and the side wall are enclosed to form a closed box structure, an even number of heat conduction plates are arranged in the closed box structure, and the heat conduction plates are arranged in the closed box structure. The upper end of the heat conduction plate is fixedly connected with the upper box plate, the lower end of the heat conduction plate is fixedly connected with the lower box plate, the two side ends, connected with the upper end and the lower end, of the heat conduction plate are fixedly connected with the corresponding side walls respectively, and the closed box body structure is divided into an odd number of closed flow channels. An upper flange and a lower flange are further arranged on the closed box body structure, the upper box plate is connected with a coke powder surge bin of the dry quenching equipment through the upper flange, and the lower box plate is connected with other peripheral equipment through the lower flange.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to metallurgical technical field, and specifically relates to a dry quenching coke box type coke powder cooling device. BACKGROUND

[0002] The prior art is equipped with 2 water cooling jacket pipes for each set of dry quenching device, and a total of 4 water cooling jacket pipes, and the service life of the water cooling jacket pipe is about 6 months, and the cooling water leaks into the dry quenching furnace cooling system, and hydrogen is generated in the high-temperature environment, so that the hydrogen content of the system exceeds the standard, and the explosion risk exists, which seriously affects the efficient, safe and stable production of the dry quenching process.

[0003] The water cooling jacket pipe used at present is composed of 46 single independent small water cooling jacket pipes arranged in a uniform distribution, and the annular head at the bottom is cracked, so that the cooling water leaks into the coke powder side and enters the dry quenching furnace system, and the main reason is that the circulating cooling water system is open, the weather in the north is windy and sandy, and leaves, plastic bags, sand and other sundries are easy to enter the cooling tower pool, and the flow channel of the independent small water cooling jacket pipe is narrow, only 9mm wide, and is easy to be blocked, and the water flow rate gradually slows down, and finally the flow is interrupted, at this time, the heat of the high-temperature coke powder at about 600 DEG C is not replaced, so that the welding seam of the annular head part is cracked, and finally damaged.

[0004] In view of the above factors, a dry quenching coke box type coke powder cooling device is provided, which has a long service life and can greatly improve the economic benefit of the non-blocking water cooling jacket pipe. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a dry quenching coke box type coke powder cooling device to solve the problems in the background art.

[0006] The utility model aims at providing a dry quenching coke box type coke powder cooling device to solve the problems in the background art.

[0007] The utility model aims at providing a dry quenching coke box type coke powder cooling device to solve the problems in the background art.

[0008] The upper box plate is connected with the coke powder buffer bin of the coke dry quenching device through the upper flange, and the lower box plate is connected with other peripheral devices through the lower flange.

[0009] Further, the closed flow channels are water phase flow channels and coke powder phase flow channels in sequence, and the number of the water phase flow channels is greater than that of the coke powder phase flow channels.

[0010] Further, the closed box structure further comprises a water inlet pipe and a water outlet pipe, the water inlet pipe is arranged at the lower end of the side wall of the closed box structure, and the water outlet pipe is arranged at the upper end of the side wall of the closed box structure.

[0011] Further, the water flowing through each water phase flow channel flows out through the water outlet pipe.

[0012] Further, the upper box plate has a plurality of grooves, and each groove is arranged on the upper box plate corresponding to the water phase flow channel.

[0013] Further, the grooves are cast with castable, and the thickness of the castable is 50 mm.

[0014] Further, the heat conduction plate has a spacing of 120 mm and a wall thickness of 10 mm, the closed box structure is a square box with a size of 1700*1700 mm, is divided into 13 layers, and the odd-numbered layers are water phase flow channels, and the even-numbered layers are coke powder phase flow channels.

[0015] Further, the closed box structure is provided with an inlet / outlet water collecting box connected with the water inlet pipe and the water outlet pipe.

[0016] Compared with the prior art, the beneficial effects of the present application are:

[0017] The coke powder cooling device has high heat exchange efficiency, is not easy to be blocked, is not easy to be leaked, and reduces the probability of water cooling jacket leakage. The heat exchange area / flow area is increased, the cooling effect is better, the dry quenching device is safe, efficient and stable in production, the water cooling jacket leakage phenomenon is completely eliminated, and the safe, efficient and stable production of the dry quenching device can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a cross-sectional schematic view of the present application;

[0019] Figure 2 is a top view schematic view of the present application;

[0020] Figure 3 is a side view schematic view of the present application;

[0021] Figure 4 is an inlet / outlet water collecting box connection schematic view of the present application;

[0022] Figure 5 The utility model Figure 1 A partial section enlarged view of the middle A. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without any creative work fall within the protection scope of the utility model.

[0024] In the description of the utility model, it should be explained that unless there are explicit provisions and limitations, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0026] As Figures 1-5 A coke dry quenching box type coke powder cooling device, including upper box board 10 and with the upper box board 10 parallelly arranged lower box board 20, the upper box board 10 and lower box board 20 between the side wall is arranged, the upper box board 10, lower box board 20 and the side wall enclosed into a closed box body structure;

[0027] The closed box body structure is provided with an even number of heat-conducting plates 50, the upper end of the heat-conducting plate 50 is fixedly connected with the upper box board 10, the lower end is fixedly connected with the lower box board 20, the two side ends of the heat-conducting plate 50 connecting the upper end and the lower end are fixedly connected with the corresponding side wall, and the closed box body structure is divided into an odd number of closed flow channels;

[0028] The closed box structure is further provided with an upper flange 102 and a lower flange 202, the upper box plate 100 is connected with the coke powder buffer bin of the coke dry quenching device through the upper flange 102, and the lower box plate 20 is connected with other peripheral devices through the lower flange 202.

[0029] In order to facilitate the temperature reduction of the coke powder in the use state, the closed flow channel is sequentially a water phase flow channel 30 and a coke powder phase flow channel 40, the number of the water phase flow channel 30 is greater than the number of the coke powder phase flow channel 40, the closed box structure further comprises a water inlet pipe 70 and a water outlet pipe 80, the water inlet pipe 70 is arranged at the lower end of the side wall of the closed box structure, the water outlet pipe 80 is arranged at the upper end of the side wall of the closed box structure, and the middle flow water of the water inlet pipe 70 passes through each water phase flow channel and flows out through the water outlet pipe 80.

[0030] In order to facilitate the durability of the box in the use state, play a role in heat insulation and prevent burning, the upper box plate 10 has a plurality of grooves, each groove is arranged on the upper box plate 10 corresponding to the water phase flow channel 30, and castable 60 is cast in the groove, and the thickness of the castable 60 is 50mm.

[0031] In order to facilitate the increase of the flow area in the use state, improve the cooling effect, the heat conducting plate 50 is spaced by 120mm, the wall thickness is 10mm, the closed box structure is a square box with a size of 1700*1700mm, which is divided into 13 layers, and the odd-numbered layers are water phase flow channels 30 and the even-numbered layers are coke powder phase flow channels 40.

[0032] In order to facilitate the formation of circulating water in the use state, the outside of the closed box structure is provided with an inlet / outlet water collecting tank connected with the water inlet pipe 70 and the water outlet pipe 80, the water inlet pipe 70 and the water outlet pipe 80 are connected with the inlet / outlet water collecting tank through a connecting pipe, and a pipeline pump is installed on the water inlet pipe 70 and the water outlet pipe 80.

[0033] The coke powder cooling device of the embodiment is a square box, the thickness h1 of the heat conducting plate 50 is 120mm, the wall thickness of the box is 10mm, the length h2 and the width h3 of the box are made into a square box with a size of 1700*1700mm, which is divided into 13 layers, and the 1st, 3rd, 5th, 7th, 9th, 11th and 13th layers are water phases, and the 2nd, 4th, 6th, 8th, 10th and 12th layers are coke powder phases. The flow channel is vertically downward, and the water flow reduces the temperature of the coke powder.

[0034] The water outlet pipe 80 is arranged outside the side wall of one side of the box, and the water inlet pipe 70 is arranged outside the side wall of the other side of the box, wherein the water flow flows into each water phase flow channel 30 from the water inlet pipe 70 and flows out through the water outlet pipe 80, so that the water flow can continuously circulate and flow, and the coke powder is cooled.

[0035] The upper flange 102 is connected with the coke powder buffer bin of the coke dry quenching device, and the upper box plate 10 is connected with the coke powder buffer bin through the upper flange 102, so that the upper box plate 10 is connected with the coke powder buffer bin closely through the upper flange 102, and the upper box plate 10 is convenient to disassemble. It can be understood that the coke powder cooling device also comprises a lower flange 202, and the lower box plate 20 is connected with other devices through the lower flange 202.

[0036] As shown in Figure 5 The upper box plate 10 has a plurality of grooves, each groove is arranged on the upper box plate 10 corresponding to the water phase flow channel 30, and the grooves are cast with castable 60, and the thickness of the castable is 50mm, and the castable is heat-insulated and prevented from burning.

[0037] The coke powder cooling device has high heat exchange efficiency, is not easy to be blocked, is not easy to be leaked, and reduces the probability of water cooling jacket leakage. The heat exchange area / flow area is increased, the cooling effect is better, and the coke dry quenching device is safe, efficient and stable in production.

[0038] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all aspects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and range of equivalent elements of the claims are intended to be embraced in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0039] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A dry quenching box type coke fines cooling device, characterized by: The application relates to a closed box structure comprising an upper box plate (10) and a lower box plate (20) arranged in parallel with the upper box plate (10), a side wall arranged between the upper box plate (10) and the lower box plate (20), and the upper box plate (10), the lower box plate (20) and the side wall enclosing a closed box structure. An even number of heat-conducting plates (50) are arranged in the closed box structure, the upper end of the heat-conducting plate (50) is fixedly connected with the upper box plate (10), the lower end is fixedly connected with the lower box plate (20), and the two side ends connecting the upper end and the lower end of the heat-conducting plate (50) are fixedly connected with corresponding side walls, so that the closed box structure is divided into an odd number of closed flow channels. An upper flange (102) and a lower flange (202) are arranged on the closed box structure, the upper box plate (10) is connected with a coke powder buffer bin of a dry quenching device through the upper flange (102), and the lower box plate (20) is connected with other peripheral devices through the lower flange (202).

2. The dry quenching box type coke fines cooling device according to claim 1, characterized in that: The closed flow channels are water phase flow channels (30) and coke powder phase flow channels (40) in sequence, and the number of the water phase flow channels (30) is greater than that of the coke powder phase flow channels (40).

3. The dry quenching box type coke fines cooling device according to claim 2, characterized in that: The closed box structure further comprises a water inlet pipe (70) and a water outlet pipe (80), the water inlet pipe (70) is arranged at the lower end of the side wall of the closed box structure, and the water outlet pipe (80) is arranged at the upper end of the side wall of the closed box structure.

4. The dry quenching box type coke fines cooling device according to claim 3, characterized in that: The middle flow water of the water inlet pipe (70) passes through each water phase flow channel and flows out from the water outlet pipe (80).

5. The dry quenching box type coke fines cooling device according to claim 4, characterized in that: The upper box plate (10) has a plurality of grooves, and each groove is arranged on the upper box plate (10) corresponding to the water phase flow channel (30).

6. The dry quenching box type coke fines cooling device according to claim 5, characterized in that: Castable (60) is cast in the groove, and the thickness of the castable (60) is 50 mm.

7. The dry quenching box type coke fines cooling device according to claim 6, characterized in that: The heat-conducting plate (50) has a spacing of 120 mm and a wall thickness of 10 mm, the closed box structure is a square box with a size of 1700*1700 mm, and the closed box structure is divided into 13 layers, and the odd-numbered layers are water phase flow channels (30) and the even-numbered layers are coke powder phase flow channels (40).

8. The dry quenching box type coke fines cooling device according to claim 7, characterized in that: The closed box structure is provided with an inlet / outlet water collecting box connected with the water inlet pipe (70) and the water outlet pipe (80).