Ground combined installation device for oversized bin body of garbage power plant and sectional type installation construction method

Abstract

The invention discloses a garbage power plant oversized bin ground combined installation device which comprises a rotary ground pile, a foundation pile, a foundation pile clamping ring, a supporting frame and an arc-shaped supporting face, the foundation pile is located on the upper portion of the rotary ground pile, the upper portion of the foundation pile is sleeved with the foundation pile clamping ring in a surrounding mode, one end of the supporting frame is the arc-shaped supporting face, and the other end of the supporting frame is fixedly connected with the foundation pile clamping ring. When the bin body is installed, the device is driven into a ground foundation, the inner face of the steel plate of the bin body and the arc-shaped supporting face are fixedly supported, sectional type combination of the bin body is completed on the ground, and after the sectional type bin body is hoisted to a to-be-determined position through hoisting equipment, high-altitude assembly is further completed. According to the method, the shrinkage rate of warehouse body ground combination welding is effectively controlled, and the one-time acceptance qualification rate of warehouse body welding is improved; through sectional type ground combined hoisting, the workload of high-altitude welding can be greatly reduced, construction of high-altitude scaffolds is reduced, the danger coefficient of high-altitude installation personnel and the machine team of cranes are reduced, and the construction efficiency is obviously improved.

Description

Technical Field

[0001] The invention relates to a ground combined installation device for a super-large warehouse body of a garbage power plant and a segmented installation construction method, belonging to the technical field of super-large warehouse body installation construction. Background Art

[0002] With the rapid economic development, the appearance of cities is changing with each passing day. The contradiction between garbage and cities is becoming more and more prominent. In order to promote the development of the environmental protection industry, various cities have vigorously promoted the construction of various large-scale garbage power plants. However, compared with traditional thermal power plants, garbage power plants have unique large warehouses such as deacidification reaction towers and lime warehouses. The warehouse body is generally a long, large-diameter, and heavy cylinder. Generally, the manufacturer transports the single-layer warehouse body to the site and assembles and installs it on site. Since the warehouse body is limited by factors such as length, height, and diameter, there is a risk of dislocation and deformation of the cylinder during the welding process, which causes great construction difficulties during the on-site construction process.

[0003] Therefore, in response to the above limitations and risk issues, a ground combined installation device for a super-large warehouse in a waste power plant and a segmented installation construction method are proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is: to provide a ground assembly installation device and a segmented installation construction method for a super-large warehouse body of a garbage power plant, to complete the segmented assembly of the warehouse body on the ground, and then to further complete the high-altitude assembly after hoisting the segmented warehouse body to a predetermined position by hoisting equipment, to effectively control the shrinkage rate of the ground assembly welding of the warehouse body, and to improve the one-time acceptance rate of the warehouse body welding.

[0005] The technical solution adopted by the present invention to solve the technical problem is as follows: A combined ground installation device for an extra-large warehouse in a garbage power plant comprises a rotating ground pile, a foundation pile, a foundation pile clamp, a support frame and an arc-shaped support surface; the foundation pile is located on the upper part of the rotating ground pile and is an integrated structure with the rotating ground pile; the foundation pile clamp is wrapped around and sleeved on the upper part of the foundation pile; one end of the support frame is an arc-shaped support surface and the other end is fixedly connected to the foundation pile clamp; the support frame and the foundation pile clamp are an integrated structure.

[0006] The pile foundation is a cylindrical structure, divided into two parts, the upper part of the pile foundation cylinder and the lower part of the pile foundation cylinder are an integrated structure, the diameter a of the upper part of the pile foundation cylinder is smaller than the diameter b of the lower part of the pile foundation cylinder, and the lower part of the pile foundation clamping ring is located at the intersection of the upper part of the pile foundation cylinder and the lower part of the pile foundation cylinder; the diameter a of the lower part of the pile foundation cylinder is greater than or equal to the diameter b of the upper part of the pile foundation cylinder plus twice the thickness c of the pile foundation clamping ring, that is, a≥b+2c.

[0007] There are multiple support frames, which are symmetrically arranged in pairs, in two or more pairs. The end of each support frame away from the pile clamp is provided with an arc-shaped support surface; the number of the support frames matches the number of single warehouse steel plates constituting the warehouse body.

[0008] The arc radius of the outer surface of the arc-shaped supporting surface matches the inner diameter of the warehouse body steel plate.

[0009] The support frame is made of I-beam or channel steel.

[0010] The above-mentioned segmented installation construction method of the ground combined installation device of the super-large warehouse of the garbage power plant has the following specific steps: S1: driving a rotating pile into a ground foundation, and surrounding a support frame with an arc-shaped support surface on the upper part of the pile through a pile clamp ring, wherein the lower part of the pile clamp ring is located at the intersection of the upper part of the pile cylinder and the lower part of the pile cylinder; S2: Initially fix the inner wall surface of a single warehouse body steel plate to the arc-shaped support surface at the end of the support frame, and gradually surround multiple single warehouse body steel plates to form a first layer of warehouse body; S3: The arc-shaped support surface of the support frame is welded to the inner wall surface of the single warehouse body steel plate for final fixation, and the welding method is: outer wall from top to bottom - inner wall from top to bottom; S4: The welds between adjacent single warehouse steel plates are welded one by one in a symmetrical manner. The welding method is: the outer wall of one side weld is from top to bottom - the inner wall is from top to bottom. After welding is completed, continue to weld the corresponding weld on the other side, or two groups of welding are carried out at the same time. The welding parts are symmetrical to each other and the welding speed is kept consistent. S5: After all the welds of the first layer of the warehouse body are welded, the first layer of the warehouse body is lifted by a lifting device through a lifting hook of a support frame, and then a new pile clamp and a support frame are inserted on the pile, and the second layer of the warehouse body is welded step by step according to steps S1 to S4; S6: According to the height of the super-large warehouse, determine the number of single-layer warehouses, and gradually weld the final layer warehouse M in sections according to steps S1 to S4; S7: After the welding of the final layer of silo body M is completed, the (M-1)th layer of silo body is hoisted and placed above the final layer of silo body M by a lifting device, so that the vertical weld of the (M-1)th layer of silo body is located in the middle of the two vertical welds of the final layer of silo body M and is evenly staggered, and then the welding of the weld between the (M-1)th layer of silo body and the final layer of silo body M is started; S8: According to the operation steps of S7, the (M-2)th layer of warehouse is hoisted and placed on the (M-1)th layer of warehouse, and the vertical welds between the two layers are evenly staggered. Then, the weld between the (M-2)th layer of warehouse and the (M-1)th layer of warehouse is welded, and the welding is carried out in sequence until the weld between the first layer of warehouse and the second layer of warehouse is finally welded; S9: Build scaffolding at the welds inside and outside the warehouse, and gradually cut and separate the support frames connected to each layer of the warehouse; S10: Grind and remove rust from the cuts and all welds, apply anti-corrosion paint, and remove the scaffolding.

[0011] According to the construction requirements on site, the warehouse body is single-layer, double-layer or multi-layer; in a multi-layer super-large warehouse body, the vertical welds between adjacent layers correspond to the center of a single warehouse body steel plate.

[0012] The positive beneficial effects of the present invention are as follows: 1. The present invention provides a ground assembly installation device for a large warehouse body of a garbage power plant and a segmented installation construction method thereof. The segmented assembly of the warehouse body is completed on the ground, and then the segmented warehouse body is hoisted to a predetermined position by a hoisting device to further complete the high-altitude assembly. The shrinkage rate of the warehouse body ground assembly welding can be effectively controlled, which is conducive to controlling the geometric shape and dimensional accuracy of the welded warehouse body, and improving the first-time acceptance rate of the warehouse body welding. At the same time, it also ensures the difficulty of the corresponding construction of the warehouse body during the high-altitude assembly process.

[0013] 2. The construction process of the present invention can maximize the ground combination welds, minimize the aerial welds, and greatly reduce the risk factor for high-altitude installers; it can more evenly allocate on-site resources, reduce the number of personnel, construction time, lifting equipment hours and high-altitude lifting costs, and speed up the construction progress.

[0014] 3. The construction process of the present invention can be extended and applied to the welding of super-large-scale objects in other fields, effectively controlling the shrinkage rate and reducing the construction difficulty, and has great application and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work, and these are all covered within the protection scope of the present invention.

[0016] Figure 1 It is a schematic diagram of the structure of the ground assembly installation device of the super-large warehouse body in the present invention; Figure 2 yes Figure 1 Schematic diagram of the structure of the rotating ground pile and foundation pile; Figure 3 This is a schematic diagram of the installation of the ground combined single-layer warehouse body of the present invention; Figure 4It is a schematic diagram of the installation of the ground combined double-layer warehouse body of the present invention.

[0017] In the attached drawings: 1 - rotating ground pile, 2 - foundation pile, 21 - upper part of the foundation pile cylinder, 22 - lower part of the foundation pile cylinder, 3 - foundation pile clamp ring, 4 - support frame, 5 - arc-shaped support surface, 6 - single warehouse body steel plate. DETAILED DESCRIPTION

[0018] The following will be combined with the accompanying drawings of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Example 1: See Figure 1 to Figure 4 A combined installation device for a large warehouse on the ground of a garbage power plant comprises a rotating ground pile 1, a foundation pile 2, a foundation pile clamp ring 3, a support frame 4 and an arc-shaped support surface 5; the foundation pile 2 is located on the upper part of the rotating ground pile 1 and is an integrated structure with the rotating ground pile 1; the foundation pile clamp ring 3 surrounds and is sleeved on the upper part of the foundation pile 2; one end of the support frame 4 is an arc-shaped support surface 5 and the other end is fixedly connected to the foundation pile clamp ring 3; the support frame 4 and the foundation pile clamp ring 3 are an integrated structure.

[0020] The pile 2 is a cylindrical structure, divided into two parts, the upper part 21 of the pile cylinder and the lower part 22 of the pile cylinder are an integrated structure, the diameter a of the upper part 21 of the pile cylinder is smaller than the diameter b of the lower part 22 of the pile cylinder, and the lower part of the pile clamp 3 is located at the intersection of the upper part 21 of the pile cylinder and the lower part 22 of the pile cylinder; the diameter a of the lower part 22 of the pile cylinder is greater than or equal to the diameter b of the upper part 21 of the pile cylinder plus twice the thickness c of the pile clamp, that is, a≥b+2c.

[0021] There are multiple support frames 4, which are arranged symmetrically in pairs, in two or more pairs. The end of each support frame away from the pile clamp 3 is provided with an arc support surface 5; the number of support frames 4 matches the number of single warehouse steel plates 6 constituting the warehouse body.

[0022] The arc radius of the outer surface of the arc-shaped support surface 5 matches the inner diameter of the warehouse body steel plate 6 .

[0023] The support frame 4 is made of I-beam or channel steel.

[0024] The above-mentioned segmented installation construction method of the ground combined installation device of the super-large warehouse of the garbage power plant has the following specific steps: S1: driving the rotating pile 1 into the ground foundation, and surrounding the support frame 4 with the arc-shaped support surface 5 on the upper part of the pile 2 through the pile clamp ring 3, and the lower part of the pile clamp ring 3 is located at the intersection of the upper part 21 of the pile cylinder and the lower part 22 of the pile cylinder; S2: Initially fix the inner wall surface of a single warehouse body steel plate 6 to the arc-shaped support surface 5 at the end of the support frame 4, and gradually surround a plurality of single warehouse body steel plates 6 to form a first layer of warehouse body; S3: The arc-shaped support surface 5 of the support frame 4 is welded to the inner wall surface of the single warehouse body steel plate 6 for final fixation, and the welding method is: the outer wall is from top to bottom - the inner wall is from top to bottom; S4: The welds between the adjacent single warehouse steel plates 6 are welded one by one in a symmetrical manner, and the welding method is: the outer wall of one side of the weld is from top to bottom - the inner wall is from top to bottom. After the welding is completed, the corresponding weld on the other side is welded, or two groups of welding are carried out at the same time, the welding parts are symmetrical to each other, and the welding speed is kept consistent; S5: After all the welds of the first layer of the warehouse body are welded, the first layer of the warehouse body is lifted by a lifting device through the lifting hook of the support frame 4, and then a new pile clamp 3 and a support frame 4 are inserted on the pile 2, and the second layer of the warehouse body is welded step by step according to steps S1 to S4; S6: According to the height of the super-large warehouse, determine the number of single-layer warehouses, and gradually weld the final layer warehouse M in sections according to steps S1 to S4; S7: After the welding of the final layer of silo body M is completed, the (M-1)th layer of silo body is hoisted and placed above the final layer of silo body M by a lifting device, so that the vertical weld of the (M-1)th layer of silo body is located in the middle of the two vertical welds of the final layer of silo body M and is evenly staggered, and then the welding of the weld between the (M-1)th layer of silo body and the final layer of silo body M is started; S8: According to the operation steps of S7, the (M-2)th layer of warehouse is hoisted and placed on the (M-1)th layer of warehouse, and the vertical welds between the two layers are evenly staggered. Then, the weld between the (M-2)th layer of warehouse and the (M-1)th layer of warehouse is welded, and the welding is carried out in sequence until the weld between the first layer of warehouse and the second layer of warehouse is finally welded; S9: Build scaffolding at the welds inside and outside the warehouse, and gradually cut and separate the support frames connected to each layer of the warehouse; S10: Grind and remove rust from the cuts and all welds, apply anti-corrosion paint, and remove the scaffolding.

[0025] According to the construction requirements on site, the warehouse body is single-layer, double-layer or multi-layer; in a multi-layer super-large warehouse body, the vertical welds between adjacent layers correspond to the center of a single warehouse body steel plate 6.

[0026] Example 2: The structure and installation method of this example are the same as those of Example 1. The similarities are not repeated here. The difference is that the warehouse body is double-layered. Figure 1 to Figure 4 ,.

[0027] Embodiment 3, this embodiment is a specific example, the reaction tower body is 20.025m long, the outer diameter of the cylinder is 11.5m, and it is divided into three parts: reaction tower ash hopper, reaction tower cylinder and airflow distributor, support, volute and other accessory assemblies. The lower section is 7 sections of cone, the middle section is 8 sections of cylinder, and the upper section is 1 section of airflow distributor, volute and its accessories, with a total weight of 112.39 tons. A 64t tower crane is configured on site, with a 70m boom, a 70m operating radius, a maximum amplitude of 25m, and a maximum load of 55.4t. The reaction tower body is composed of 12mm and 20mm thick steel plates.

[0028] Step 1: Ground assembly installation of cone sections 1-7: Drive the rotating pile 1 of the ground assembly installation device of the super-large silo into the foundation, weld the arc-shaped support surface 5 with the inner wall surface of the single silo steel plate 6 of the 7th section of the cone, and start to weld the 7th section of the cone silo steel plate one by one. After welding, hoist and remove the 7th section of the cone through the support frame 4; insert a new support frame 4 on the foundation pile 2, put in the 6th section of the cone silo steel plate and fix it with the arc-shaped support surface 5, and start to weld the 6th section of the cone silo steel plate one by one. After welding, hoist the 7th section of the silo that has been welded above the 6th section of the cone, and start to weld the weld between the 7th section and the 6th section of the silo; and complete the welding of the 1st to 5th sections of the cone silo and the 6th and 7th cone silo assembly in sequence. After welding, remove the arc-shaped support surfaces connected to the cone sections 1-6 in sequence, grind the weld and the silo, and further apply anti-corrosion paint. Among them: the total weight of the cone assembly is 32.42t, and it is installed at the equipment location by a 64t tower crane, with a load rate of 58.5%.

[0029] Step 2: Ground assembly installation of cylinder sections 1-8: weld the arc-shaped support surface to the inner wall surface of the single silo steel plate of the 8th section of the cylinder and finally fix it, start to weld the silo steel plate of the 8th section of the cylinder symmetrically one by one, after welding is completed, lift and take out the 8th section of the cylinder through the support frame; insert a new arc-shaped support frame on the foundation pile 2, put in the silo steel plate of the 7th section of the cylinder and fix it with the arc-shaped support surface, start to weld the silo steel plate of the 7th section of the cylinder symmetrically one by one, after welding is completed, lift the silo of the 8th section of the cylinder that has been welded above the 7th section of the cylinder, start to weld the weld between the silo of the 8th section of the cylinder and the silo of the 7th section of the cylinder; and complete the welding of the silo of the 1st to 6th sections of the cylinder and the silo assembly of the 7th and 8th sections of the cylinder in turn; after welding is completed, remove the arc-shaped support surfaces connected to the cylinder sections 1-7 in turn, grind the welds and the silo, and further apply anti-corrosion paint. Among them: the total weight of the cylinder assembly is 35.77t, which is installed at the equipment location by a 64t tower crane, with a load rate of 64.6%.

[0030] Step 3: The total weight of the air flow distributor, support, volute and other accessory components is 44.2t, which is installed at the equipment location by a 64t tower crane with a load rate of 79.8%.

[0031] Step 4: Build a layer of scaffolding inside and outside the cone and the cylinder, and build a layer of scaffolding inside and outside the cylinder and air flow distributor, support, volute and other accessory assemblies, and start welding the connection points between the cone and the cylinder, and between the cylinder and the volute; after welding is completed, cut off the connection points between the 7th cone section and the 8th cylinder section and the arc-shaped support surface in turn, grind the welds and the warehouse body, and further apply anti-corrosion paint.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ground assembly installation device for a large warehouse in a garbage power plant, characterized by: The large warehouse ground assembly installation device of a garbage power plant comprises a rotating ground pile (1), a foundation pile (2), a foundation pile clamp (3), a support frame (4) and an arc-shaped support surface (5); the foundation pile (2) is located on the upper part of the rotating ground pile (1) and is an integral structure with the rotating ground pile (1); the foundation pile clamp (3) surrounds and is sleeved on the upper part of the foundation pile (2); one end of the support frame (4) is an arc-shaped support surface (5) and the other end is fixedly connected to the foundation pile clamp (3); the support frame (4) and the foundation pile clamp (3) are an integral structure.

2. The ground assembly installation device for a large warehouse in a garbage power plant according to claim 1 is characterized by: The foundation pile (2) is a cylindrical structure, divided into an upper and lower part, the upper part (21) of the foundation pile cylinder and the lower part (22) of the foundation pile cylinder are an integrated structure, the diameter a of the upper part (21) of the foundation pile cylinder is smaller than the diameter b of the lower part (22) of the foundation pile cylinder, and the lower part of the foundation pile clamp (3) is located at the intersection of the upper part (21) of the foundation pile cylinder and the lower part (22) of the foundation pile cylinder; the diameter a of the lower part (22) of the foundation pile cylinder is greater than or equal to the diameter b of the upper part (21) of the foundation pile cylinder plus twice the thickness c of the foundation pile clamp, that is, a≥b+2c.

3. The ground assembly installation device for a large warehouse in a garbage power plant according to claim 2 is characterized by: The support frames (4) are multiple and symmetrically arranged in pairs, with the number being two or more pairs, and the end of each support frame away from the pile clamp ring (3) is provided with an arc-shaped support surface (5); the number of the support frames (4) matches the number of single warehouse body steel plates (6) constituting the warehouse body.

4. The ground assembly installation device for a large warehouse in a garbage power plant according to claim 3 is characterized by: The arc radius of the outer surface of the arc-shaped support surface (5) matches the inner diameter of the warehouse body steel plate (6).

5. The ground assembly installation device for a large warehouse in a garbage power plant according to claim 1 is characterized by: The support frame (4) is made of I-beam or channel steel.

6. The segmented installation construction method of the ground combined installation device of the super-large warehouse body of the garbage power plant according to any one of claims 1 to 5, wherein the specific steps are as follows: S1: driving a rotating pile (1) into a ground foundation, and surrounding a support frame (4) with an arc-shaped support surface (5) on the upper part of the pile (2) through a pile clamp ring (3), wherein the lower part of the pile clamp ring (3) is located at the junction of the upper part (21) and the lower part (22) of the pile cylinder; S2: initially fixing the inner wall surface of a single warehouse body steel plate (6) to the arc-shaped support surface (5) at the end of the support frame (4), and gradually surrounding a plurality of single warehouse body steel plates (6) to form a first layer of warehouse body; S3: welding the arc-shaped support surface (5) of the support frame (4) to the inner wall surface of the single warehouse body steel plate (6) for final fixation, the welding method being: outer wall from top to bottom - inner wall from top to bottom; S4: symmetrically welding the welds between adjacent single warehouse steel plates (6) one by one, in the following manner: the outer wall of one side weld is welded from top to bottom - the inner wall is welded from top to bottom, and after welding is completed, the corresponding weld on the other side is welded, or two groups of welding are performed simultaneously, the welding parts are symmetrical to each other, and the welding speed is kept constant; S5: After all the welds of the first layer of the silo are welded, the first layer of the silo is lifted by a lifting device through a lifting hook of a support frame (4), and then a new pile clamp (3) and a support frame (4) are inserted into the pile (2), and the second layer of the silo is welded step by step according to steps S1 to S4; S6: According to the height of the super-large warehouse, determine the number of single-layer warehouses, and gradually weld the final layer warehouse M in sections according to steps S1 to S4; S7: After the welding of the final layer of silo body M is completed, the (M-1)th layer of silo body is hoisted and placed above the final layer of silo body M by a lifting device, so that the vertical weld of the (M-1)th layer of silo body is located in the middle of the two vertical welds of the final layer of silo body M and is evenly staggered, and then the welding of the weld between the (M-1)th layer of silo body and the final layer of silo body M is started; S8: According to the operation steps of S7, the (M-2)th layer of warehouse is hoisted and placed on the (M-1)th layer of warehouse, and the vertical welds between the two layers are evenly staggered. Then, the weld between the (M-2)th layer of warehouse and the (M-1)th layer of warehouse is welded, and the welding is carried out in sequence until the weld between the first layer of warehouse and the second layer of warehouse is finally welded; S9: Build scaffolding at the welds inside and outside the warehouse, and gradually cut and separate the support frames (4) connected to each layer of the warehouse; S10: Grind and remove rust from the cuts and all welds, apply anti-corrosion paint, and remove the scaffolding.

7. The segmented installation construction method according to claim 6 is characterized in that: According to the construction requirements on site, the silo is single-layer, double-layer or multi-layer; in a multi-layer super-large silo, the vertical welds between adjacent layers correspond to the center of a single silo steel plate (6).

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