Installation method of large sintering stock bin

Abstract

The invention provides a large sintering bin installation method. A to-be-constructed large sintering bin is divided into a bin cone section, a bin lower straight section, a bin ring beam section and a bin upper straight section; the material bin cone section and the material bin lower straight section are subjected to tailor welding, so that a lower combined bin body is formed; the bin ring beam section is hoisted to a mounting platform with the preset height to be fixed, and the lower combined bin body is hoisted so as to complete tailor welding of the upper end of the lower combined bin body and the bin ring beam section at the end; wherein the mounting platform is located above the center position of a 0m-layer bin body of the stock bin; and the upper straight section of the stock bin is hoisted to the position above the bin ring beam section and welded to the bin ring beam section. According to the installation method of the large sintering stock bin, the problem of transportation overrun of the large stock bin can be effectively solved in the construction process; and the problems of high hoisting height, overweight hoisting weight, limited site and the like during installation of the large stock bin single body are solved, the construction efficiency can be improved, the safety risk of operation of constructors is reduced, and the construction cost is saved.

Description

Technical Field

[0001] The invention relates to the technical field of sintering furnace manufacturing, and more specifically, to a large-scale sintering silo installation method. Background Art

[0002] Sintering silos, as a kind of equipment specially used for storing and transporting powdered and granular materials, play an important role in many industrial production fields. Large sintering silos are mainly used for storing large amounts of materials.

[0003] In the existing technology, during the installation and construction of large-scale sintering silos, the overall length of the silo unit is long and the volume is heavy, making the overall hoisting very difficult. In addition, during the existing large-scale sintering silo hoisting construction process, there are a series of hidden dangers such as limited working space and safety risks of high-altitude operations.

[0004] Based on the above technical problems, there is an urgent need for a large sintering silo installation method with low lifting difficulty and high safety factor. Summary of the invention

[0005] In view of the above problems, the purpose of the present invention is to provide a large-scale sintering silo installation method, which can effectively solve the problem of over-limit transportation of large-scale silos during construction; as well as the problems of high hoisting height of large-scale silo monomers, overweight hoisting weight, limited site, etc., which can speed up construction efficiency, reduce the safety risks of construction personnel's operations, and save construction costs.

[0006] The present invention provides a large sintering silo installation method, the installation method comprising:

[0007] The large-scale sintering silo to be constructed is segmented to divide the large-scale sintering silo to be constructed into a silo cone section, a silo lower straight section, a silo ring beam section and a silo upper straight section;

[0008] The silo cone section and the silo lower straight section are welded at the preset silo 0m layer silo body center position to form a lower combined silo body;

[0009] The silo ring beam segment is hoisted to a mounting platform of a preset height for fixing, and the lower combined silo body is hoisted to complete the welding of the upper end of the lower combined silo body and the silo ring beam segment at the end; wherein the mounting platform is located above the center position of the silo body at the 0m layer;

[0010] The upper straight section of the silo is hoisted above the silo ring beam section and welded to the silo ring beam section.

[0011] In addition, a preferred solution is that the silo cone section and the silo lower straight section are welded at the center position of the preset silo 0m layer silo body to form a lower combined silo body, including:

[0012] Hoist the silo cone section to the preset silo 0m layer silo center position;

[0013] The lower straight section of the silo is hoisted above the silo cone section, and assembled and welded to the top of the silo cone section to form the lower combined silo body.

[0014] In addition, a preferred solution is that the preset process of the installation platform includes:

[0015] Retest and accept the preset axis of the warehouse installation location and the preset embedded bolts;

[0016] The bottom elevation of the ore bin support is leveled according to the axis of the silo installation positioning position after retesting and acceptance and the embedded bolts; and the position of the installation platform is determined based on the bottom elevation of the ore bin support.

[0017] In addition, a preferred solution is to hoist the lower combined warehouse body to complete the welding of the upper end of the lower combined warehouse body and the warehouse ring beam section at the end, including:

[0018] Use the crane lifting point to hook down from the center of the warehouse body to lift the lower combined warehouse body, and use the hand chain hoist to cooperate with the lifting and adjustment of the lower combined warehouse body;

[0019] After the lower combined silo body and the silo ring beam section are spliced, the lower combined silo body and the silo ring beam section are welded;

[0020] After the lower combined silo body and the silo ring beam section are firmly welded, the crane is unhooked and the hand winch is removed.

[0021] In addition, a preferred solution is that the hoisting of the lower combined warehouse body to complete the welding of the upper end of the lower combined warehouse body and the warehouse ring beam section at the end also includes:

[0022] The center line of the lower combined warehouse body is controlled to coincide with the center line of the warehouse ring beam section.

[0023] In addition, a preferred solution is that controlling the center line of the lower combined warehouse body to coincide with the center line of the warehouse ring beam segment includes:

[0024] The lower combined warehouse body is positioned by a preset positioning plate, and a vertical line is suspended from the center point of the warehouse ring beam section to the lower combined warehouse body;

[0025] The center line of the lower combined warehouse body is controlled based on the vertical line so that the center line of the lower combined warehouse body coincides with the center line of the warehouse ring beam segment.

[0026] In addition, a preferred solution is to set up a movable scaffolding platform on the periphery of the large sintering silo to be constructed; and

[0027] The movable scaffolding platform is used to perform external welding between the sections of the large sintering silo to be constructed.

[0028] In addition, a preferred solution is to set up a temporary operating platform on the inner wall of the large sintering silo to be constructed; and

[0029] The temporary operating platform is used to perform internal welding between the sections of the large sintering silo to be constructed.

[0030] In addition, a preferred solution is that the temporary operating platform includes a springboard supported on the inner wall of the large sintering silo to be constructed, a vertical pole is arranged on the side of the springboard away from the inner wall of the large sintering silo to be constructed, and a safety rope is pulled on the vertical pole; and,

[0031] The construction workers use the springboard and the safety rope to perform internal welding between the sections of the large sintering silo to be constructed.

[0032] In addition, a preferred solution is that a temporary straight ladder is provided on the inner wall of the large sintering silo to be constructed, and an operator climbs to a preset height via the temporary straight ladder.

[0033] Compared with the prior art, the large-scale sintering silo installation method provided by the present invention optimizes the existing construction process of the large-scale sintering silo, and lifts and welds the large-scale sintering silo in sections, which can solve the problems of difficult lifting, difficult welding, and difficult operation; and can reduce high-altitude operations, reduce the safety operation risks of construction personnel, speed up the construction progress, and save construction costs.

[0034] In order to achieve the above and related purposes, one or more aspects of the present invention include features that will be described in detail later and are particularly pointed out in the claims. The following description and the accompanying drawings describe some exemplary aspects of the present invention in detail. However, these aspects indicate only some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all of these aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] By referring to the following description and claims in conjunction with the accompanying drawings, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the accompanying drawings:

[0036] Figure 1 A flow chart of a large sintering silo installation method provided by an embodiment of the present invention;

[0037] Figure 2 A schematic diagram of a silo segmentation of a large sintering silo to be constructed in a large sintering silo installation method provided in an embodiment of the present invention;

[0038] Figure 3 A schematic elevation diagram of the assembly and assembly of a silo cone section and a silo lower straight section in a large sintering silo installation method provided by an embodiment of the present invention;

[0039] Figure 4 A schematic elevation diagram of the hoisting of a silo ring beam section in a large sintering silo installation method provided by an embodiment of the present invention;

[0040] Figure 5 A schematic elevation diagram of the hoisting of the lower combined silo body in the large sintering silo installation method provided by an embodiment of the present invention;

[0041] Figure 6 A schematic elevation diagram of the hoisting of the upper straight section of a silo in a large sintering silo installation method provided by an embodiment of the present invention;

[0042] Figure 7 A schematic elevation diagram of a temporary operating platform in a large sintering silo installation method provided by an embodiment of the present invention;

[0043] Figure 8 A schematic diagram of the center line of a silo in a large sintering silo installation method provided in an embodiment of the present invention.

[0044] In the figure: silo cone section 1, silo lower straight section 2, silo ring beam section 3, silo upper straight section 4, installation platform 5, springboard 6, vertical pole 7, safety rope 8, silo wall 9, support plate 10.

[0045] The same reference numerals throughout the drawings indicate similar or corresponding features or functions. DETAILED DESCRIPTION

[0046] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is apparent that these embodiments may also be implemented without these specific details. In other examples, for ease of describing one or more embodiments, known structures and devices are shown in the form of block diagrams.

[0047] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance; in addition, 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 a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Figure 1 The process of the large sintering silo installation method provided by the embodiment of the present invention is shown. Figure 2 The figure shows the silo segmentation method of the large sintering silo to be constructed in the large sintering silo installation method provided by the embodiment of the present invention. Figure 3 The vertical structure of the large sintering silo installation method provided by the embodiment of the present invention is shown, in which the silo cone section and the silo lower straight section are assembled and assembled. Figure 4 The figure shows the hoisting facade structure of the silo ring beam section in the large sintering silo installation method provided by the embodiment of the present invention. Figure 5 The figure shows the hoisting facade structure of the lower combined silo body in the large sintering silo installation method provided by the embodiment of the present invention. Figure 6 The figure shows the hoisting facade structure of the upper straight section of the silo in the large sintering silo installation method provided by the embodiment of the present invention. Figure 7 The figure shows the elevation structure of a temporary operating platform in the large sintering silo installation method provided by an embodiment of the present invention. Figure 8 The figure shows the position of the center line of the silo in the large sintering silo installation method provided by an embodiment of the present invention.

[0049] Combination Figures 1 to 8 It can be seen that the present invention provides a large sintering silo installation method, comprising:

[0050] S110: According to the silo design drawing of the large sintering silo to be constructed, the large sintering silo to be constructed is segmented to divide the large sintering silo to be constructed into a silo cone section 1, a lower straight section 2, a silo ring beam section 3 and a silo upper straight section 4 (such as Figure 1 As shown in the figure), the large sintering silo to be constructed will be installed in sections later;

[0051] S120: The silo cone section 1 and the lower straight section 2 of the treatment course are welded at the preset silo 0m layer silo body center position to form a lower combined silo body (such as Figure 2 shown);

[0052] S130: hoist the silo ring beam segment 3 to the installation platform 5 of the preset height for fixing, and hoist the lower combined silo body to complete the welding of the upper end of the lower combined silo body and the silo ring beam segment 3 at the end; wherein the installation platform 5 is located above the center position of the silo 0m layer silo body (combined with Figure 3 and Figure 4 shown);

[0053] S140: hoist the upper straight section 4 of the silo to the top of the silo ring beam section 3 and weld it to the silo ring beam section 3 (such as Figure 5 shown).

[0054] Furthermore, the silo cone section 1 and the lower straight section 2 of the treatment course are welded at the center position of the preset silo 0m layer silo body to form a lower combined silo body, including:

[0055] First, the silo cone section 1 is hoisted above the center position of the preset silo 0m layer silo body, and then the silo cone section 1 is lowered to the preset silo 0m layer silo body center position, and the lower cone section is fixed around;

[0056] Then the lower straight section 2 of the treatment course is hoisted above the silo cone section 1, and then lowered and assembled and welded with the top of the silo cone section 1 to form the lower combined silo body (such as Figure 2 shown).

[0057] It should be noted that the preset process of the installation platform 5 includes:

[0058] Before installation, the preset axis of the silo installation location and the preset embedded bolts are retested and accepted; then the elevation of the axis of the silo installation location after retesting and acceptance and the bottom elevation of the ore silo support are leveled with the embedded bolts; and the installation position of the installation platform 5 is determined based on the bottom elevation of the ore silo support, and the installation platform 5 is installed at the installation position. In the subsequent process, it is convenient to use a crane to hoist the silo ring beam section 3 to the second-layer platform elevation H1 (that is, a preset installation platform 5, and the third-layer platform elevation H1 in the figure is another preset installation platform 5) for installation and welding.

[0059] In addition, a preferred solution is to hoist the lower combined warehouse body to complete the welding of the upper end of the lower combined warehouse body and the warehouse ring beam section 3 at the end, including:

[0060] After the silo ring beam section 3 is installed and fixed, use the crane lifting point to hook down from the center of the silo body to lift the lower combined silo body, and use the hand chain hoist to cooperate with the lifting and adjustment of the lower combined silo body;

[0061] After the lower combined silo body and the silo ring beam section 3 are spliced, the lower combined silo body and the silo ring beam section 3 are welded;

[0062] After the lower combined silo body and the silo ring beam section 3 are firmly welded, the crane is unhooked and the hand winch is removed.

[0063] Furthermore, in the process of hoisting the upper straight section 4 of the silo to the top of the silo ring beam section 3 and welding it to the silo ring beam section 3, the upper straight section 4 of the silo is directly hoisted to the installation position by a crane and welded to the silo ring beam section 3. The crane can be unhooked only after the welding is firm.

[0064] It should be noted that, in order to ensure the overall installation accuracy of the installed silo structure, the lower combined silo body is hoisted to complete the welding of the upper end of the lower combined silo body and the silo ring beam section 3 at the end, and may also include:

[0065] The center line of the lower combined warehouse body is controlled to coincide with the center line of the warehouse ring beam section 3.

[0066] Furthermore, if Figure 8 As shown, the control of coinciding the center line of the lower combined warehouse body with the center line of the warehouse ring beam section 3 may include:

[0067] The lower combined warehouse body is positioned by a preset positioning plate, and a vertical line is suspended from the center point of the warehouse ring beam section 3 to the lower combined warehouse body;

[0068] The center line of the lower combined warehouse body is controlled based on the vertical line so that the center line of the lower combined warehouse body coincides with the center line of the warehouse ring beam section 3.

[0069] It should be noted that the adjustment of the center line of the entire large-scale sintering silo to be constructed should be based on the center line of the verified support beam. First, the center line of the silo ring beam section 3 of the silo body should be controlled with the reference point on the support beam, and then the center line of the silo ring beam section 3 should be used to control the center line of the lower combined silo body.

[0070] During the silo welding process, since the weld is located at a high altitude and cannot be welded on a platform, in a preferred embodiment of the present invention, a movable scaffolding platform can be set up on the periphery of the large sintering silo to be constructed; the external welding between the sections of the large sintering silo to be constructed can be performed through the movable scaffolding platform.

[0071] In addition, a temporary operating platform is set up on the inner wall of the large sintering silo to be constructed (about 1m below the silo body joint weld); and the internal welding between the sections of the large sintering silo to be constructed is carried out through the temporary operating platform.

[0072] Furthermore, in order to realize the production of a temporary operating platform, the temporary operating platform includes a springboard 6 supported on the inner wall of the large sintering silo to be constructed, and a vertical pole 7 is arranged on the side of the springboard 6 away from the inner wall of the large sintering silo to be constructed, and a safety rope 8 is pulled on the vertical pole 7; and the construction personnel use the springboard 6 and the safety rope 8 to perform internal welding between the sections of the large sintering silo to be constructed.

[0073] In the actual production process, the temporary operating platform can use L63*5 angle steel to be evenly arranged along the warehouse wall 9 of the warehouse body and a horizontal plate is laid on the top to form a springboard 6 of the temporary operating platform. An L50*5 angle steel is arranged under the corresponding angle steel as a support plate 10 for reinforcement. The springboard 6 needs to be firmly tied to the angle steel with wire; and a vertical pole 7 (DN40 welded pipe can be used) is arranged on the L63*5 angle steel (a part of the springboard 6), and a safety rope 8 is pulled.

[0074] In addition, a temporary straight ladder can be set on the inner wall of the large sintering silo to be constructed. It should be noted that a fall arrester needs to be set on the temporary straight ladder. The operator uses the fall arrester to cooperate with the temporary straight ladder to climb to a preset height to perform internal welding between the sections of the large sintering silo to be constructed, and the safety belt must be hung on the safety rope 8 during welding operations.

[0075] As above Figures 1 to 8 The large sintering silo installation method according to the present invention is described in an exemplary manner. However, those skilled in the art should understand that various improvements can be made to the large sintering silo installation method proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the attached claims.

Claims

1. A large sintering silo installation method, characterized in that: The installation method comprises: The large-scale sintering silo to be constructed is segmented to divide the large-scale sintering silo to be constructed into a silo cone section, a silo lower straight section, a silo ring beam section and a silo upper straight section; The silo cone section and the silo lower straight section are welded at the preset silo 0m layer silo body center position to form a lower combined silo body; The silo ring beam segment is hoisted to a mounting platform of a preset height for fixing, and the lower combined silo body is hoisted to complete the welding of the upper end of the lower combined silo body and the silo ring beam segment at the end; wherein the mounting platform is located above the center position of the silo body at the 0m layer; The upper straight section of the silo is hoisted above the silo ring beam section and welded to the silo ring beam section.

2. The large sintering silo installation method according to claim 1, characterized in that: The step of welding the silo cone section and the silo lower straight section at the preset silo 0m layer silo body center position to form a lower combined silo body comprises: Hoist the silo cone section to the preset silo 0m layer silo center position; The lower straight section of the silo is hoisted above the silo cone section, and assembled and welded to the top of the silo cone section to form the lower combined silo body.

3. The large sintering silo installation method according to claim 2, characterized in that: The preset process of the installation platform includes: Retest and accept the preset axis of the warehouse installation location and the preset embedded bolts; The bottom elevation of the ore bin support is leveled according to the axis of the silo installation positioning position after retesting and acceptance and the embedded bolts; and the position of the installation platform is determined based on the bottom elevation of the ore bin support.

4. The large sintering silo installation method according to claim 3, characterized in that: The hoisting of the lower combined warehouse body to complete the welding of the upper end of the lower combined warehouse body and the warehouse ring beam segment at the end includes: Use the crane lifting point to hook down from the center of the warehouse body to lift the lower combined warehouse body, and use the hand chain hoist to cooperate with the lifting and adjustment of the lower combined warehouse body; After the lower combined silo body and the silo ring beam section are spliced, the lower combined silo body and the silo ring beam section are welded; After the lower combined silo body and the silo ring beam section are firmly welded, the crane is unhooked and the hand winch is removed.

5. The large sintering silo installation method according to claim 4, characterized in that: The hoisting of the lower combined warehouse body to complete the welding of the upper end of the lower combined warehouse body and the warehouse ring beam section at the end also includes: The center line of the lower combined warehouse body is controlled to coincide with the center line of the warehouse ring beam section.

6. The large sintering silo installation method according to claim 5, characterized in that: The controlling the center line of the lower combined warehouse body to coincide with the center line of the warehouse ring beam section comprises: The lower combined warehouse body is positioned by a preset positioning plate, and a vertical line is suspended from the center point of the warehouse ring beam section to the lower combined warehouse body; The center line of the lower combined warehouse body is controlled based on the vertical line so that the center line of the lower combined warehouse body coincides with the center line of the warehouse ring beam section.

7. The large sintering silo installation method according to any one of claims 2 to 6, characterized in that: A movable scaffolding platform is set up around the large sintering silo to be constructed; and The movable scaffolding platform is used to perform external welding between the sections of the large sintering silo to be constructed.

8. The large sintering silo installation method according to claim 7, characterized in that: A temporary operating platform is set up on the inner wall of the large sintering silo to be constructed; and The temporary operating platform is used to perform internal welding between the sections of the large sintering silo to be constructed.

9. The large sintering silo installation method according to claim 8, characterized in that: The temporary operation platform comprises a springboard supported on the inner wall of the large sintering silo to be constructed, a vertical pole is arranged on the side of the springboard away from the inner wall of the large sintering silo to be constructed, and a safety rope is pulled on the vertical pole; and The construction workers use the springboard and the safety rope to perform internal welding between the sections of the large sintering silo to be constructed.

10. The large sintering silo installation method according to claim 9, characterized in that: A temporary straight ladder is arranged on the inner wall of the large-scale sintering silo to be constructed, and an operator climbs to a preset height via the temporary straight ladder.

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