Dry quenching water cooling sleeve overhauling device and method

Abstract

The invention discloses a dry quenching water-cooling sleeve maintenance device and method, the dry quenching water-cooling sleeve maintenance device comprises a dry quenching water-cooling sleeve positioning platform and a dry quenching water-cooling sleeve arranged on the dry quenching water-cooling sleeve positioning platform, and the dry quenching water-cooling sleeve positioning platform is provided with a protective fence; a positioning rail is mounted on the outer side of the coke dry quenching water-cooling sleeve positioning platform through a steel structure truss, the positioning rail and the coke dry quenching water-cooling sleeve positioning platform are arranged in parallel, a movable vehicle body is movably arranged on the positioning rail, and an overhauling platform is detachably mounted on the movable vehicle body. The height of the maintenance platform can be adjusted, at least two sets of moving vehicle bodies are arranged on the positioning track, the lifting heights of the maintenance platforms arranged on the moving vehicle bodies are different, and a handrail capable of being opened and closed is arranged on the side, opposite to the positioning track, of the protective fence. The openable and closable handrails are connected with the protective fence in a hinged mode.

Description

Technical Field

[0001] The invention belongs to the field of dust removal water-cooling sleeve devices in the steel industry, and in particular relates to a dry coke quenching water-cooling sleeve maintenance device and method. Background Art

[0002] The dry coke quenching system consists of a coke conveying and cooling system, an inert gas circulation system, a boiler steam-water system, a dust removal system and a circulating water system. The main equipment for dry coke quenching includes elevators, circulating fans, loading devices, coke discharge devices, boilers and dust removal equipment.

[0003] The existing dry quenching coke dust removal system is divided into two parts: process dust removal and environmental dust removal. The process dust removal is mainly set up to protect the equipment. It consists of a primary dust collector (gravity dust collector, referred to as 1DC) and a secondary dust collector (cyclone dust collector, referred to as 2DC), which plays a role in removing dust particles in the circulating gas system. The primary dust collector is located between the dry quenching furnace outlet and the boiler inlet. It uses gravity sedimentation to remove coarse particles of coke powder in the circulating gas, ensuring that the particle size of coke powder entering the waste heat boiler is less than 2mm, reducing the abrasion of coke powder on the boiler tube and increasing the service life of the boiler. The secondary dust collector is located between the boiler outlet and the circulating fan. It uses cyclone dust removal to remove fine particles of coke powder in the circulating gas at the boiler outlet, ensuring that the particle size of coke powder entering the circulating fan is less than 1mm, reducing the wear on the circulating fan and increasing the service life of the fan. The coke powder collected and discharged by the primary dust collector and the secondary dust collector is sent to the coke powder storage tank by a chain scraper and a bucket elevator, and is discharged and transported away after humidification and stirring. Environmental dust removal is used to control and collect the smoke generated by the dry quenching system during the coke loading, coke discharge, coke transportation and the discharge from the furnace top discharge area. This part of the smoke is sucked into the low-pressure pulse bag dust collector of the ground dust removal station through the dust removal fan for dust removal. The smoke after dust removal meets the standards and is discharged into the atmosphere. The discharged coke powder is sent to the coke powder storage tank by the chain scraper and bucket elevator, and is discharged and transported away after humidification and mixing.

[0004] In the above-mentioned prior art, during the construction, daily maintenance, annual maintenance and water-cooling sleeve leakage, the installation, disassembly and replacement of the water-cooling sleeve are limited by the small space of the maintenance platform, the large size and heavy weight of the water-cooling sleeve, and the inconvenience of moving, disassembling and installing for maintenance.

[0005] In view of the above factors, a CDQ water-cooling sleeve maintenance device and method are provided. The method can facilitate personnel to install, replace and move the water-cooling sleeve during construction and later maintenance, is easy to operate, has good actual installation effect on site, and achieves the expected planned effect. Summary of the invention

[0006] The object of the present invention is to provide a method for repairing a water-cooled casing of a CDQ system to solve the problems raised in the above-mentioned background technology.

[0007] The objective of the present invention is achieved through the following technical solutions: a dry coke quenching water cooling sleeve maintenance device, comprising a dry coke quenching water cooling sleeve positioning platform and a dry coke quenching water cooling sleeve arranged thereon, the dry coke quenching water cooling sleeve positioning platform is provided with a protective fence, a positioning track is installed on the outer side of the dry coke quenching water cooling sleeve positioning platform through a steel structure truss, and the positioning track is arranged in parallel with the dry coke quenching water cooling sleeve positioning platform;

[0008] A mobile vehicle body is movably arranged on the positioning rail, and a maintenance platform is detachably mounted on the mobile vehicle body, and the maintenance platform can be adjusted in height;

[0009] At least two groups of moving vehicles are arranged on the positioning track, and the lifting height of the maintenance platform arranged on each group of moving vehicles is different.

[0010] Furthermore, a switchable railing is provided on the side of the protective fence opposite to the positioning track, and the switchable railing is connected to the protective fence in a hinged manner.

[0011] Furthermore, the maintenance platform includes a base and a load-bearing platform, and a first lifting frame and a second lifting frame are arranged alternately between the base and the load-bearing platform. The first lifting frame and the second lifting frame are symmetrically arranged on both sides of the base and the load-bearing platform respectively.

[0012] Furthermore, one end of the first lifting frame and the second lifting frame is connected to the load-bearing platform and the base by an articulated manner, and the other end of the first lifting frame and the second lifting frame is articulated to a connecting shaft, and the connecting shaft is movably arranged in a limiting groove.

[0013] Furthermore, a central hole connected to the adjusting screw is opened at the central position of the connecting shaft, and the end of the adjusting screw is connected to the control motor.

[0014] Furthermore, the control motor is connected to the PLC controller via a wired or wireless manner, and the forward and reverse rotation of the control motor is driven by the PLC controller.

[0015] Furthermore, a positioning channel for the CDQ water-cooling sleeve is provided on the load-bearing platform of the maintenance platform, and inclined support rods are provided along both sides of the positioning channel, and the inclined support rods are provided with a telescopic rod structure;

[0016] The end of the oblique support rod is connected to the load-bearing platform in a hinged manner.

[0017] The method for overhauling the CDQ water-cooling sleeve specifically comprises the following steps:

[0018] The first step is to install the positioning rail according to the location of the water-cooling jacket platform of the primary dust collector on site. The positioning rail is supported by the steel structure truss.

[0019] The second step is to arrange at least two sets of mobile bodies on the positioning track, and to install the maintenance platform on the mobile bodies in a detachable manner;

[0020] The third step is to drive the motor through the PLC controller to drive the adjusting screw to rotate, thereby driving the first lifting frame and the second lifting frame to move so that the load-bearing platform is lifted to a position parallel to the CDQ water-cooling jacket positioning platform;

[0021] The fourth step is to place the disassembled water-cooling jacket on the maintenance platform, and move the water-cooling jacket to the edge of the platform railing by traction with the assistance of the fall chain;

[0022] Step 5: Move the water-cooling jacket to the edge of the platform, open the switchable railing, and place it on the maintenance platform;

[0023] Step 6: The water cooling jacket is supported by an oblique support rod arranged on the load-bearing platform;

[0024] When supported by the inclined support rod, a U-shaped ear groove is provided at one end away from the load-bearing platform, and the U-shaped ear groove cooperates with the positioning plate on the outer wall of the water-cooling jacket and is fixed by bolts.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The present invention arranges and installs the positioning track according to the actual position of the water-cooling jacket platform of the primary dust collector on site, and is convenient and quick to implement on site. The present invention solves the technical difficulties of installation, replacement and other maintenance of the water-cooling jacket of the CDQ primary dust collector.

[0027] The present invention installs a corresponding maintenance device at the water-cooling jacket platform of a primary dust collector. Through the water-cooling jacket maintenance device, construction and maintenance personnel can safely stand on the platform to facilitate installation, disassembly and replacement of the water-cooling jacket during maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the cooperation between the positioning rail of the present invention and the CDQ water-cooling sleeve positioning platform;

[0029] Figure 2 It is a plan view of the maintenance platform of the present invention;

[0030] Figure 3 This is a schematic diagram of the CDQ water-cooling casing positioning platform / protective fence of the present invention;

[0031] Figure 4 This is a schematic diagram of the cooperation between the mobile vehicle body and the maintenance platform of the present invention;

[0032] Figure 5 It is a three-dimensional schematic diagram of the maintenance platform of the present invention;

[0033] Figure 6 is a schematic diagram of the oblique support rod of the present invention;

[0034] Figure 7 It is an enlarged schematic diagram of the adjusting screw and the connecting shaft of the present invention;

[0035] Figure 8 It is a schematic diagram of connecting the control motor and the PLC controller of the present invention. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] like Figure 1-8 As shown, a dry quenching water-cooling sleeve maintenance device comprises a dry quenching water-cooling sleeve positioning platform 1 and a dry quenching water-cooling sleeve 2 arranged thereon, the dry quenching water-cooling sleeve positioning platform 1 is provided with a protective fence 3, and a positioning track 4 is installed on the outer side of the dry quenching water-cooling sleeve positioning platform 1 through a steel structure truss, and the positioning track 4 is arranged parallel to the dry quenching water-cooling sleeve positioning platform 1;

[0040] A mobile vehicle body 5 is movably arranged on the positioning track 4, and a maintenance platform 6 is detachably mounted on the mobile vehicle body 5, and the maintenance platform 6 can be adjusted in height;

[0041] At least two groups of moving vehicles 5 are arranged on the positioning track 4, and the maintenance platforms 6 arranged on each group of the moving vehicles 5 have different lifting heights.

[0042] In order to facilitate use without affecting the normal inspection and movement of the platform or other maintenance operations on the platform, the positioning track 4 is installed at the edge of the platform near the railing, and a switchable railing is provided on the side of the protective fence 3 opposite to the positioning track 4. The switchable railing is connected to the protective fence 3 in a hinged manner.

[0043] The above-mentioned provision of a switchable handrail avoids lifting and hoisting during disassembly and maintenance.

[0044] In order to facilitate maintenance during use, a corresponding maintenance platform is set on the mobile body, and the maintenance platform has a height-adjustable function. The maintenance platform 6 includes a base 61 and a load-bearing platform 62, and a first lifting frame 63 and a second lifting frame 64 are staggered between the base 61 and the load-bearing platform 62. The first lifting frame 63 and the second lifting frame 64 are symmetrically arranged on both sides of the base 61 and the load-bearing platform 62.

[0045] One end of the first lifting frame 63 and the second lifting frame 64 are connected to the load-bearing platform 62 and the base 61 in an articulated manner, and the other end of the first lifting frame 63 and the second lifting frame 64 are articulated to a connecting shaft 65 , and the connecting shaft 65 is movably arranged in a limiting groove 66 .

[0046] The limiting groove 66 arranged on the load-bearing platform is a hollow frame structure, and the limiting groove 66 is connected to the bottom surface of the load-bearing platform 62 by bolts or welding.

[0047] The limiting groove 66 disposed on the base 61 is a hollow frame structure, and the limiting groove 66 is connected to the base 61 by bolts or welding.

[0048] A central hole connected to the adjusting screw is provided at the central position of the connecting shaft 65 , and the end of the adjusting screw is connected to the control motor 67 .

[0049] The control motor 67 is connected to an external PLC controller via a wired or wireless method, and the external PLC controller drives the control motor to rotate forward and reverse.

[0050] A control motor 67 is provided on the above-mentioned maintenance platform 6. The control motor 67 controls the adjusting screw to rotate forward and reverse under the drive of the PLC controller. Two control motors 67 are provided and move simultaneously.

[0051] like Figure 7As shown, a fixing sleeve is provided at the center position of the connecting shaft, and a center hole is opened on the fixing sleeve and is co-centric with the center hole on the connecting shaft. The center hole is a threaded hole, and the first lifting frame 63 and the second lifting frame 64 are controlled by the connecting shaft and the adjusting screw rod to realize the lifting and lowering of the load-bearing platform.

[0052] In order to facilitate positioning and supporting the water-cooling jacket by means of the inclined support rods in the use state, a positioning channel for the CDQ water-cooling jacket 2 is provided on the load-bearing platform 62 on the maintenance platform 6, and inclined support rods are arranged along both sides of the positioning channel, and the inclined support rods are arranged in a retractable rod structure;

[0053] The end of the oblique support rod is connected to the load-bearing platform in a hinged manner.

[0054] The positioning channel opened on the load-bearing platform runs through the load-bearing platform, and the load-bearing platform has a certain thickness. When the dry coke quenching water-cooling jacket 2 is placed on the load-bearing platform, it is ensured that the end of the dry coke quenching water-cooling jacket 2 is located in the positioning channel.

[0055] like Figure 6 As shown, after the CDQ water-cooling jacket 2 is placed on the maintenance platform 6, it is positioned by connecting it to the outer wall of the CDQ water-cooling jacket 2 through the inclined support rod, wherein, when supported by the inclined support rod, a U-shaped ear groove is provided at the end away from the load-bearing platform, and the U-shaped ear groove is hingedly connected to the end position of the inclined support rod, and is fixed by bolts in cooperation with a temporary positioning plate on the outer wall of the water-cooling jacket.

[0056] The method for overhauling the CDQ water-cooling sleeve specifically comprises the following steps:

[0057] The first step is to install the positioning rail according to the location of the water-cooling jacket platform of the primary dust collector on site. The positioning rail is supported by the steel structure truss.

[0058] The second step is to arrange at least two sets of mobile bodies on the positioning track, and to install the maintenance platform on the mobile bodies in a detachable manner;

[0059] The third step is to drive the motor through the PLC controller to drive the adjusting screw to rotate, thereby driving the first lifting frame and the second lifting frame to move so that the load-bearing platform is lifted to a position parallel to the CDQ water-cooling jacket positioning platform;

[0060] The fourth step is to place the disassembled water-cooling jacket on the maintenance platform, and move the water-cooling jacket to the edge of the platform railing by traction with the assistance of the fall chain;

[0061] Step 5: Move the water-cooling jacket to the edge of the platform, open the switchable railing, and place it on the maintenance platform;

[0062] Step 6: The water cooling jacket is supported by an oblique support rod arranged on the load-bearing platform;

[0063] When supported by the inclined support rod, a U-shaped ear groove is provided at one end away from the load-bearing platform, and the U-shaped ear groove cooperates with the positioning plate on the outer wall of the water-cooling jacket and is fixed by bolts.

[0064] When the above-mentioned CDQ water-cooling jacket is overhauled, the water-cooling jacket is placed on the platform of the overhaul vehicle and can move freely back and forth under the drag of the mobile vehicle body, which brings convenience to the transportation, moving, lifting and towing of the overhauled water-cooling jacket, and avoids unnecessary losses caused by large size, heavy weight, inconvenient movement and collision and deformation of the water-cooling jacket during the overhaul process.

[0065] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0066] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dry coke quenching water-cooling casing maintenance device, characterized in that: The invention comprises a dry coke quenching water cooling sleeve positioning platform (1) and a dry coke quenching water cooling sleeve (2) arranged thereon, wherein a protective fence (3) is arranged on the dry coke quenching water cooling sleeve positioning platform (1), and a positioning track (4) is installed on the outer side of the dry coke quenching water cooling sleeve positioning platform (1) through a steel structure truss, and the positioning track (4) is arranged parallel to the dry coke quenching water cooling sleeve positioning platform (1); A movable vehicle body (5) is movably arranged on the positioning track (4), and a maintenance platform (6) is detachably mounted on the movable vehicle body (5), and the maintenance platform (6) can be adjusted in height; At least two groups of moving vehicle bodies (5) are arranged on the positioning track (4), and the lifting heights of the inspection platforms (6) arranged on each group of moving vehicle bodies (5) are different.

2. The CDQ water-cooling casing maintenance device according to claim 1 is characterized in that: A switchable railing is provided on the side of the protective fence (3) opposite to the positioning track (4), and the switchable railing is connected to the protective fence (3) in a hinged manner.

3. The CDQ water-cooling casing maintenance device according to claim 2 is characterized in that: The inspection platform (6) comprises a base (61) and a load-bearing platform (62), and a first lifting frame (63) and a second lifting frame (64) are arranged between the base (61) and the load-bearing platform (62), and the first lifting frame (63) and the second lifting frame (64) are symmetrically arranged on both sides of the base (61) and the load-bearing platform (62).

4. The CDQ water-cooling casing maintenance device according to claim 3 is characterized in that: One end of the first lifting frame (63) and the second lifting frame (64) are connected to the load-bearing platform (62) and the base (61) in an articulated manner, and the other end of the first lifting frame (63) and the second lifting frame (64) are articulated to a connecting shaft (65), and the connecting shaft (65) is movably arranged in a limiting groove (66).

5. The CDQ water-cooling casing maintenance device according to claim 4 is characterized in that: A central hole connected to the adjusting screw is provided at the central position of the connecting shaft (65), and the end of the adjusting screw is connected to the control motor (67).

6. The CDQ water-cooling casing maintenance device according to claim 5, characterized in that: The control motor (67) is connected to the PLC controller via a wired or wireless method, and the PLC controller drives the control motor to rotate forward and reverse.

7. The CDQ water-cooling casing maintenance device according to claim 6, characterized in that: A positioning channel for the CDQ water-cooling sleeve (2) is provided on the load-bearing platform (62) on the inspection platform (6), and inclined support rods are arranged along both sides of the positioning channel, wherein the inclined support rods are arranged in a telescopic rod structure; The end of the oblique support rod is connected to the load-bearing platform in a hinged manner.

8. The method for repairing a CDQ water-cooling casing according to any one of claims 1 to 7, characterized in that: The specific steps include: The first step is to install the positioning rail according to the location of the water-cooling jacket platform of the primary dust collector on site. The positioning rail is supported by the steel structure truss. The second step is to arrange at least two sets of mobile carriages on the positioning track, and to install the maintenance platform on the mobile carriages in a detachable manner; The third step is to drive the motor through the PLC controller to drive the adjusting screw to rotate, thereby driving the first lifting frame and the second lifting frame to move so that the load-bearing platform is lifted to a position parallel to the CDQ water-cooling jacket positioning platform; The fourth step is to place the disassembled water-cooling jacket on the maintenance platform, and move the water-cooling jacket to the edge of the platform railing by traction with the assistance of the fall chain; Step 5: Move the water-cooling jacket to the edge of the platform, open the switchable railing, and place it on the maintenance platform; Step 6: The water cooling jacket is supported by an oblique support rod arranged on the load-bearing platform; When supported by the inclined support rod, a U-shaped ear groove is provided at one end away from the load-bearing platform, and the U-shaped ear groove cooperates with the positioning plate on the outer wall of the water-cooling jacket and is fixed by bolts.

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