Device for quickly replacing buffer tank of dewatering drum
By using a rapid replacement device for rails, trolleys and electric hoists in blast furnace smelting, the problem of inconvenient disassembly of water slag buffer boxes is solved, efficient buffer boxes are replaced, and labor intensity and cost are reduced.
Patent Information
- Application Number
- CN202422240421.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-12
AI Technical Summary
The existing water slag buffer box is inconvenient to dismantle and repair during blast furnace smelting, resulting in extended maintenance time and increased labor intensity and dry slag emission costs.
A quick replacement device including rails, trolleys and electric hoists was designed. The buffer box and trolleys were connected by wire ropes, and the buffer box was pulled out of the dehydration drum along the rails for cleaning.
It improves the disassembly efficiency of the buffer box, reduces labor and equipment costs, reduces maintenance time and dry slag emission costs.
Smart Images
Figure CN223047542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blast furnace smelting, and particularly relates to a device for quickly replacing a buffer tank of a dehydration drum. Background Art
[0002] The by-product slag generated in the process of blast furnace ironmaking is usually quenched into granulated slag by a granulated slag flushing device. The granulated slag treatment device uses a dehydration drum, and its internal structure includes a granulated slag distributor, a belt conveyor, a filter and a granulated slag buffer tank. After a period of production, the inner wall of the granulated slag buffer tank will scale, seriously affecting the working efficiency. At this time, it is necessary to stop using the dehydration drum (during which the red slag is discharged into the accident dry slag pit), and unload the granulated slag buffer tank from the dehydration drum for manual cleaning of the large-scale scale. When unloading the granulated slag buffer tank, tools such as steel wire ropes, chain hoists and cranes are usually used. At the same time, due to the narrow working space inside the dehydration drum and the heavy weight of the granulated slag buffer tank (nearly 2 tons), the disassembly time is often long, resulting in an extended maintenance time. During this period, the red slag is discharged for a long time, resulting in a low labor rate of workers during maintenance and an increase in the cost of discharging dry slag. Content of the Utility Model
[0003] In view of the above-mentioned technical problem that the existing granulated slag buffer tank is inconvenient to disassemble and maintain, a device for quickly replacing the buffer tank of the dehydration drum is provided.
[0004] The technical means adopted by the utility model are as follows:
[0005] A device for quickly replacing a buffer tank of a dehydration drum, comprising a steel rail, a trolley and an electric hoist;
[0006] The steel rail is detachably installed inside the dehydration drum and is located above all the buffer tanks inside the dehydration drum; the trolley is slidably installed on the steel rail and can slide along the steel rail;
[0007] A lifting lug structure is installed on the top of the buffer tank; a trolley hook is fixedly installed at the front of the trolley, and a trolley lifting hook is fixedly installed on the side; the trolley lifting hook is used to be connected with the lifting lug structure through a steel wire rope, so that the buffer tank is connected with the trolley; the electric hoist is used to be connected with the trolley hook through a steel wire rope, so as to pull the connected trolley and the buffer tank along the steel rail to the outside of the dehydration drum.
[0008] Further, the steel rail is installed inside the dehydration drum by bolts.
[0009] Further, one end of the steel rail extends into the dehydration drum, and the other end extends out of the dehydration drum.
[0010] Further, supporting wheels are respectively installed at the four corners of the bottom of the trolley, and the trolley is slidably installed on the steel rail through the supporting wheels.
[0011] Compared with the prior art, the utility model has the following advantages:
[0012] The device for quickly replacing the buffer tank of the dehydration drum provided by the utility model is convenient for manufacturing, installation, and has low cost. It can improve work efficiency, reduce labor costs, and at the same time reduce the cost of discharging dry slag and the cost of using large cranes, thereby reducing the ironmaking cost.
[0013] Based on the above reasons, the utility model can be widely promoted in the field of blast furnace smelting. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0015] Figure 1 It is a schematic diagram of the working process of water slag dehydration in the blast furnace ironmaking process.
[0016] Figure 2 It is a schematic diagram of the process of disassembling the buffer tank in the prior art.
[0017] Figure 3 It is a schematic structural diagram of the device for quickly replacing the buffer tank of the dehydration drum of the present utility model.
[0018] Figure 4 It is a schematic structural diagram of the trolley and the steel rail of the present utility model.
[0019] Figure 5 It is a schematic top view structural diagram of the device for quickly replacing the buffer tank of the dehydration drum of the present utility model.
[0020] Figure 6 It is a schematic diagram of disassembling the buffer tank by using the device for quickly replacing the buffer tank of the dehydration drum of the present utility model.
[0021] Figure 7 It is a schematic diagram of installing the buffer tank by using the device for quickly replacing the buffer tank of the dehydration drum of the present utility model.
[0022] In the figure: 1, granulation tower; 2, water slag distributor; 3, dehydration drum; 4, buffer tank; 5, belt; 6, hook; 7, round steel; 8, chain block; 9, steel rail; 10, trolley; 11, electric hoist; 12, trolley hook; 13, trolley lifting hook. Detailed implementation manners
[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.
[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. The description of at least one exemplary embodiment below is actually only illustrative and in no way limits the present utility model and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] It should be noted that the terms used herein are only for describing the specific implementation manners and are not intended to limit the exemplary implementation manners of the present utility model. As used herein, unless otherwise clearly specified in the context, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of the features, steps, operations, devices, components and / or their combinations.
[0026] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps described in these embodiments do not limit the scope of the present utility model. At the same time, it should be clear that, for the convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the authorized specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in the subsequent drawings.
[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model: the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.
[0028] For the convenience of description, spatial relative terms can be used here, such as "above...", "over...", "on the upper surface of...", "upper...", etc., to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation other than the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.
[0029] In addition, it should be noted that the use of words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.
[0030] Embodiment 1
[0031] As Figure 3-5 shown, the present utility model provides a device for quickly replacing the buffer tank of a dehydration drum, which includes a steel rail 9, a trolley 10 and a electric hoist 11;
[0032] The steel rail 9 is detachably installed inside the dehydration drum and is located above all the buffer tanks 4 inside the dehydration drum; the trolley 10 is slidably installed on the steel rail 9 and can slide along the steel rail 9;
[0033] A lifting lug structure is installed on the top of the buffer box 4; a trolley hook 12 is fixedly installed at the front of the trolley 10, and a trolley lifting hook 13 is fixedly installed on the side; the trolley lifting hook 13 is used to be connected with the lifting lug structure through a steel wire rope, so that the buffer box 4 is connected with the trolley 10; the electric hoist 11 is used to be connected with the trolley hook 12 through a steel wire rope, so as to pull the connected trolley 10 and the buffer box 4 together along the steel rail 9 to the outside of the dehydration drum.
[0034] Further, the steel rail 9 is installed inside the dehydration drum by bolts.
[0035] Further, one end of the steel rail 9 extends into the dehydration drum, and the other end extends out of the dehydration drum.
[0036] Further, supporting wheels are respectively installed at the four corners of the bottom of the trolley 10, and the trolley 10 is slidably installed on the steel rail 9 through the supporting wheels.
[0037] As Figure 6-7 shown, when replacing the buffer box by using the device for quickly replacing the buffer box of the dehydration drum of the present utility model:
[0038] First, disassemble the slag distributor 2 connecting the granulation tower 1 and the belt 4 installed in the dehydration drum, and then extend one end of the steel rail 9 into the dehydration drum and install it well;
[0039] When it is necessary to disassemble and overhaul the buffer box 4:
[0040] (1) Push the trolley 10 along the steel rail 9 into the dehydration drum, position it above the buffer box 4 to be transported, connect the trolley lifting hook 13 on the side of the trolley 10 with the lifting lug structure on the buffer box 4 by a steel wire rope, so that the buffer box 4 to be transported is hung below the trolley 10;
[0041] (2) Connect the trolley hook 12 at the front of the trolley 10 with the electric hoist 11 by a steel wire rope, control the operation of the electric hoist 11, and pull the connected trolley 10 and the buffer box 4 together along the steel rail 9 to the outside of the dehydration drum;
[0042] (3) Disassemble the steel wire rope connected to the lifting lug structure of the buffer box 4 to separate the trolley 10 from the buffer box 4, lift the buffer box 4 to the descaling operation position by a crane, and then clean the buffer box 4;
[0043] When it is necessary to install the buffer box 4 into the dehydration drum:
[0044] (1) Lift the buffer tank 4 by a crane to below the steel rail 9 outside the dehydration drum. Place the trolley 10 on the steel rail 9. Connect the trolley hook 13 on the side of the trolley 10 to the lifting lug structure on the buffer tank 4 to be transferred with a steel wire rope, so that the buffer tank 4 to be transferred is hung below the trolley 10.
[0045] (2) Push the trolley 10 to drive the buffer tank 4 to enter the dehydration drum along the steel rail 9 until the designated installation position of the buffer tank 4. Disassemble the steel wire rope connected to the lifting lug structure of the buffer tank 4 to separate the trolley 10 from the buffer tank 4, and then install the buffer tank 4.
[0046] After completing the disassembly, inspection or installation of the buffer tank 4, control the electric hoist 11 to pull the trolley 10 out of the dehydration drum, and then disassemble the steel rail 9.
[0047] As Figure 1 shown, in the current blast furnace smelting process, the molten slag discharged from the blast furnace flows into the granulation tower 1 through the slag ditch, is made into water slag by high-pressure water flushing, enters the dehydration drum 3 through the water slag distributor 2 and the buffer tank 4, and finally falls into the belt 6 for transportation after being dehydrated by the dehydration drum 3. When the buffer tank needs to be repaired, it is necessary to first unload the distributor and the belt, and then use the round steel 7 installed under the buffer tank to cooperate with structures such as hooks and chain hoists 8 to disassemble the buffer tank 4. As Figure 2 shown, however, due to the narrow working space inside the dehydration drum 3 and the heavy weight of the buffer tank 4, the existing disassembly method requires a long disassembly time, resulting in an extended repair time. During this period, red slag is discharged for a long time, resulting in a low labor rate of workers during the repair period and an increase in the cost of discharging dry slag.
[0048] When using the device for quickly replacing the buffer tank of the dehydration drum provided by the present utility model and it is necessary to clean the buffer tank, the buffer tank can be transported by the trolley, reducing the frictional resistance and enabling the buffer tank to be conveniently transported out for cleaning. The device structure provided by the present utility model is convenient to manufacture and install, has a low cost, can improve work efficiency, reduce labor costs, and at the same time reduce the cost of discharging dry slag and the cost of using large cranes, thereby reducing the ironmaking cost.
[0049] Applying the device for quickly replacing the buffer tank of the dehydration drum provided by the present utility model to the blast furnace water slag repair system of the Beiying Ironmaking Plant of Benxi Iron and Steel Co., Ltd. is beneficial to reducing the labor intensity of operations, improving work efficiency, and reducing the cost of discharging dry slag.
[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A device for quickly replacing a dehydration drum buffer box, characterized in that: Including rails, trolleys and electric hoists; The steel rail is detachably mounted inside the dehydration drum and is located above all buffer boxes inside the dehydration drum; the trolley is slidably mounted on the steel rail and can slide along the steel rail; A lifting ear structure is installed on the top of the buffer box; a trolley hook is fixedly installed on the front of the trolley, and a trolley hook is fixedly installed on the side; the trolley hook is used to connect with the lifting ear structure through a wire rope, so that the buffer box is connected to the trolley; the electric hoist is used to connect with the trolley hook through a wire rope, so as to pull the connected trolley and the buffer box along the rail to the outside of the dewatering drum.
2. The device for quickly replacing a dehydration drum buffer box according to claim 1, characterized in that: The rails are installed inside the dewatering drum by means of bolts.
3. The device for quickly replacing a dehydration drum buffer box according to claim 1, characterized in that: One end of the steel rail extends into the dewatering drum, and the other end extends out of the dewatering drum.
4. The device for quickly replacing a dehydration drum buffer box according to claim 1, characterized in that: Supporting wheels are respectively installed at the four corners of the bottom of the trolley, and the trolley is slidably installed on the rail through the supporting wheels.