Destructive decomposition method for horizontal waste steel equipment

Abstract

The invention discloses a destructive decomposition method for horizontally-placed waste steel equipment, which comprises the following steps of: dividing the outer wall of the horizontally-placed waste steel equipment into an upper decomposition module, a lower decomposition module and 2N + 2 local decomposition modules positioned in the middle through the position distribution of longitudinal cutting lines and transverse cutting lines, wherein the upper decomposition module and the lower decomposition module are an arc-shaped upper cover and an arc-shaped lower cover; the method comprises the construction steps that N + 1 front side middle blocks and N + 1 rear side middle blocks are included, in addition, through the construction steps that longitudinal cutting lines and transverse cutting lines are cut firstly, and then reserved sections are cut off, the middle of the horizontal steel waste equipment is destructively decomposed into the N + 1 front side middle blocks and the N + 1 rear side middle blocks, and an arc-shaped upper cover falls onto an arc-shaped lower cover; the arc-shaped upper cover and the arc-shaped lower cover can be disassembled through conventional ground operation, so that destructive decomposition of the horizontal waste steel equipment is realized; therefore, the method has the advantages of being low in safety risk, high in construction speed and low in cost.

Description

Technical Field

[0001] The invention relates to the decomposition construction of equipment such as towers, industrial furnaces, vertical containers, etc. after they are laid down, and specifically to a destructive decomposition method for horizontally laid steel waste equipment. Background Art

[0002] According to the "Action Plan for Strict Energy Efficiency Constraints in Key Petrochemical Industries to Promote Energy Conservation and Carbon Reduction 2021-2025" issued by the National Development and Reform Commission, the inefficient production capacity in the petrochemical field is guided to exit in an orderly manner and implement energy conservation and carbon reduction actions. Relevant parties have sorted out old equipment and clearly required "large and small" to eliminate or shut down production equipment and facilities that have not completed compliance procedures such as resumption of operation. It is estimated that more than 300 chemical parks in China will be eliminated and transformed one after another, and the demolition market has huge space. At present, the device dismantling plan is gradually developing towards the direction of module / equipment overall directional dumping technology. A large number of vertical equipment will become horizontal steel waste equipment after directional dumping. Its decomposition speed will determine the safety and efficient implementation of the subsequent dumping of modules / equipment. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a destructive decomposition method for horizontally placed steel waste equipment.

[0004] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0005] A destructive decomposition method for horizontally placed steel waste equipment, which is suitable for horizontally placed steel waste equipment formed by directional dumping and dismantling of steel vertical cylinder equipment, such as towers, industrial furnaces, vertical containers, etc. dumped and placed on a horizontal working surface waiting for decomposition construction;

[0006] Among them, before the implementation of the present invention, it is necessary to check and confirm the stability of the placement of the horizontally placed steel waste equipment, and check whether the floor around the horizontally placed steel waste equipment meets the safety operation requirements of the operators and construction machinery, so as to ensure the safety of the implementation of the present invention.

[0007] The invention is characterized by comprising:

[0008] Step S1, calibrating the longitudinal cutting line, the transverse cutting line and the cutting reserved section of the horizontally placed steel waste equipment to ensure accurate cutting;

[0009] Step S2, cutting N pairs of longitudinal cutting lines according to the line setting calibration, wherein N ≥ 2, each pair of longitudinal cutting lines includes a front longitudinal cutting line and a rear longitudinal cutting line arranged symmetrically in the front and rear directions, and each group of longitudinal cutting lines is evenly spaced in the left and right directions;

[0010] Among them, the number of longitudinal cutting lines and the distance between them are determined comprehensively based on the specifications of the horizontally placed steel scrap equipment, the capacity of the machinery, etc.

[0011] Step S3, according to the line-laying calibration, cutting of two groups of transverse cutting lines arranged symmetrically in the upper and lower directions is performed, wherein the first group of transverse cutting lines includes N+2 pairs of upper transverse cutting lines evenly spaced in the left-right direction, each pair of upper transverse cutting lines includes a front upper transverse cutting line and a rear upper transverse cutting line symmetrically arranged front-to-back, and the second group of transverse cutting lines includes N+2 pairs of lower transverse cutting lines evenly spaced in the left-to-right direction, each pair of lower transverse cutting lines includes a front lower transverse cutting line and a rear lower transverse cutting line symmetrically arranged front-to-back;

[0012] Furthermore, the positions of the transverse cutting lines satisfy the following conditions: the first pair of upper transverse cutting lines and the lower transverse cutting lines are connected to the left edge of the horizontally placed scrap steel equipment, the last pair of upper transverse cutting lines and the lower transverse cutting lines are connected to the right edge of the horizontally placed scrap steel equipment, and the middle N pairs of upper transverse cutting lines and the lower transverse cutting lines are respectively connected to the N pairs of longitudinal cutting lines; wherein, if one end of the horizontally placed scrap steel equipment is a closed end, then the pair of upper transverse cutting lines connected to the end are connected, and the pair of lower transverse cutting lines are connected, for example Figure 1 The pair of upper and lower transverse cutting lines on the far right.

[0013] Therefore, the intervals between two adjacent transverse cutting lines are recorded as cutting reserved sections, and each quadrilateral area surrounded by the left edge, right edge, front longitudinal cutting line, front upper transverse cutting line, and front lower transverse cutting line of the horizontally placed waste steel equipment is recorded as the front middle block, and each quadrilateral area surrounded by the left edge, right edge, rear longitudinal cutting line, rear upper transverse cutting line, and rear lower transverse cutting line of the horizontally placed waste steel equipment is recorded as the rear middle block; that is, each front middle block and each rear middle block are respectively connected to the arc-shaped upper cover and arc-shaped lower cover of the horizontally placed waste steel equipment through two upper and lower symmetrical cutting reserved sections;

[0014] Among them, in step S2 and step S3, each longitudinal cutting line and each transverse cutting line can be cut at multiple points respectively, or can be cut sequentially in left-right order, but cutting the reserved section is strictly prohibited.

[0015] Among them, the positioning of the horizontal cutting line is determined comprehensively based on the specifications of the horizontally placed steel scrap equipment, cutting equipment, mechanical capacity, etc.

[0016] Among them, the length of the cutting reserved section is determined comprehensively based on the specifications, wall thickness, mechanical equipment capacity, bearing capacity of the cutting reserved section, and internal support of the horizontally placed steel scrap equipment.

[0017] Among them, the longitudinal cutting line and the transverse cutting line can choose automatic cutting equipment or manual cutting according to the outer wall conditions of the horizontally placed steel scrap equipment. When manual cutting is adopted, an extended rod cutting gun should be used for the high cutting line.

[0018] Step S4, by cutting off the cutting reserved section, removing each front middle block and rear middle block, so that the arc-shaped upper cover falls onto the arc-shaped lower cover, realizing the destructive decomposition of the horizontally placed steel waste equipment, and then, after confirming that the fallen arc-shaped upper cover is stable, the decomposition operation of the arc-shaped upper cover and the arc-shaped lower cover can be realized through conventional ground operations.

[0019] Thus, the present invention divides the outer wall of the horizontally placed steel waste equipment into two upper and lower decomposition modules, namely, an arc-shaped upper cover and an arc-shaped lower cover, and 2N+2 local decomposition modules located in the middle, including N+1 front middle blocks and N+1 rear middle blocks, through the position distribution of the longitudinal cutting line and the transverse cutting line, and through the construction steps of first cutting the longitudinal cutting line and the transverse cutting line and then cutting the reserved section, so that the middle part of the horizontally placed steel waste equipment is destructively decomposed into N+1 front middle blocks and N+1 rear middle blocks, and the arc-shaped upper cover falls onto the arc-shaped lower cover, so that the decomposition operation of the arc-shaped upper cover and the arc-shaped lower cover can be realized through conventional ground operations, thereby realizing the destructive decomposition of the horizontally placed steel waste equipment; therefore, the present invention has the advantages of low safety risk, fast construction speed and low cost.

[0020] Furthermore, the present invention can be implemented by placing the steel waste equipment horizontally at the construction site using conventional equipment, without the need to configure a separate machine for the decomposition operation.

[0021] Moreover, the construction work of the present invention does not require the setting up of a scaffolding work platform, does not involve high-altitude work, has low safety risks, high decomposition efficiency, and low construction costs.

[0022] Preferably, in step S2 and step S3, the longitudinal cutting line extends in the vertical direction, and the transverse cutting line extends in the horizontal direction; the front middle block and the rear middle block are both rectangular blocks.

[0023] Preferably, in step S4, hydraulic shears are used to tear, exercise or cut the reserved cutting section.

[0024] Preferably: in the step S4, the front middle block and the rear middle block that are symmetrically arranged front to back are removed in pairs in sequence from left to right or from right to left, so that the arc-shaped upper cover gradually falls from left to right or from right to left onto the arc-shaped lower cover during the removal process, thereby improving the safety of the present invention.

[0025] Preferably: for the case where the interior of the horizontally placed steel scrap equipment contains internal supports, in the step S4, as the front middle block and the rear middle block that are symmetrically arranged front and back are removed in pairs in sequence, the internal supports at the positions where the front middle block and the rear middle block are located are removed simultaneously to release the constraints of the internal supports on the arc-shaped upper cover.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The present invention divides the outer wall of the horizontally placed steel waste equipment 1 into two upper and lower decomposition modules, namely, an arc-shaped upper cover 1-1 and an arc-shaped lower cover 1-2, and 2N+2 local decomposition modules located in the middle, including N+1 front middle blocks Sq and N+1 rear middle blocks Sh, through the position distribution of the longitudinal cutting line and the transverse cutting line. In addition, through the construction steps of first cutting the longitudinal cutting line and the transverse cutting line and then cutting the reserved section L, the middle part of the horizontally placed steel waste equipment 1 is destructively decomposed into N+1 front middle blocks Sq and N+1 rear middle blocks Sh, and the arc-shaped upper cover 1-1 falls onto the arc-shaped lower cover 1-2, so that the decomposition operation of the arc-shaped upper cover 1-1 and the arc-shaped lower cover 1-2 can be realized by conventional ground operations, thereby realizing the destructive decomposition of the horizontally placed steel waste equipment 1; therefore, the present invention has the advantages of low safety risk, fast construction speed and low cost.

[0028] Furthermore, the present invention can be implemented by placing the steel scrap equipment 1 horizontally with conventional equipment at the construction site, without the need to configure a separate machine for the decomposition operation.

[0029] Moreover, the construction work of the present invention does not require the setting up of a scaffolding work platform, does not involve high-altitude work, has low safety risks, high decomposition efficiency, and low construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0031] Figure 1 This is a cutting line layout diagram for destructively decomposing horizontally placed steel waste equipment according to the present invention. DETAILED DESCRIPTION

[0032] The present invention is described in detail below in conjunction with the embodiments and the accompanying drawings to help those skilled in the art better understand the inventive concept of the present invention. However, the protection scope of the claims of the present invention is not limited to the following embodiments. For those skilled in the art, all other embodiments obtained without creative work without departing from the inventive concept of the present invention belong to the protection scope of the present invention.

[0033] In the description of the present invention, it should be clarified that the directional terms "front, back, left, right" are only relative concepts in terms of direction. They are for the convenience of describing the present invention or simplifying the description, rather than indicating or implying a specific direction that the present invention must have. Therefore, they cannot be understood as limitations on the present invention.

[0034] like Figure 1 As shown, the present invention discloses a destructive decomposition method for horizontally placed steel waste equipment, which is applicable to horizontally placed steel waste equipment 1 formed by directional dumping and dismantling of steel vertical cylinder equipment, such as a tower, industrial furnace, vertical container, etc. dumped and placed on a horizontal working surface waiting for decomposition construction;

[0035] Among them, before the implementation of the present invention, it is necessary to check and confirm the stability of the placement of the horizontally placed steel waste equipment 1, and check whether the floor around the horizontally placed steel waste equipment 1 meets the safety operation requirements of the operators and construction machinery to ensure the safety of the implementation of the present invention.

[0036] include:

[0037] Step S1, calibrating the longitudinal cutting line, the transverse cutting line and the cutting reserved section of the horizontally placed steel waste equipment 1 to ensure accurate cutting;

[0038] Step S2, according to the line setting calibration, cutting N pairs of longitudinal cutting lines is performed, wherein N ≥ 2, each pair of longitudinal cutting lines includes a front longitudinal cutting line Zq and a rear longitudinal cutting line Zh that are symmetrically arranged front and back, and each group of longitudinal cutting lines is evenly spaced along the left and right directions;

[0039] The number of longitudinal cutting lines and the distances between them are determined comprehensively based on the specifications of the horizontally placed steel scrap equipment 1, the capacity of the machinery, etc.

[0040] Step S3, according to the line-laying calibration, cutting of two groups of transverse cutting lines arranged symmetrically in the upper and lower directions is performed, wherein the first group of transverse cutting lines includes N+2 pairs of upper transverse cutting lines evenly spaced in the left-right direction, each pair of upper transverse cutting lines includes a front upper transverse cutting line Hqs and a rear upper transverse cutting line Hhs symmetrically arranged front-to-back, and the second group of transverse cutting lines includes N+2 pairs of lower transverse cutting lines evenly spaced in the left-to-right direction, each pair of lower transverse cutting lines includes a front lower transverse cutting line Hqx and a rear lower transverse cutting line Hhx symmetrically arranged front-to-back;

[0041] Furthermore, the positions of the transverse cutting lines satisfy the following conditions: the first pair of upper and lower transverse cutting lines are connected to the left edge 1z of the horizontally placed scrap steel equipment 1, the last pair of upper and lower transverse cutting lines are connected to the right edge 1y of the horizontally placed scrap steel equipment 1, and the middle N pairs of upper and lower transverse cutting lines are respectively connected to the N pairs of longitudinal cutting lines; wherein, if one end of the horizontally placed scrap steel equipment 1 is a closed end, then the pair of upper and lower transverse cutting lines connected to the end are connected, and the pair of lower and upper transverse cutting lines are connected, for example Figure 1 The pair of upper and lower transverse cutting lines on the far right.

[0042] Therefore, the interval between two adjacent transverse cutting lines is recorded as a cutting reserved section L, and each quadrilateral area surrounded by the left edge 1z, the right edge 1y, the front longitudinal cutting line Zq, the front upper transverse cutting line Hqs, and the front lower transverse cutting line Hqx of the horizontally placed steel waste equipment 1 is recorded as a front middle block Sq, and each quadrilateral area surrounded by the left edge 1z, the right edge 1y, the rear longitudinal cutting line Zh, the rear upper transverse cutting line Hhs, and the rear lower transverse cutting line Hhx of the horizontally placed steel waste equipment 1 is recorded as a rear middle block Sh; that is, each front middle block Sq and each rear middle block Sh are respectively connected to the arc-shaped upper cover 1-1 and the arc-shaped lower cover 1-2 of the horizontally placed steel waste equipment 1 through two upper and lower symmetrical cutting reserved sections L;

[0043] Among them, in step S2 and step S3, each longitudinal cutting line and each transverse cutting line can be cut at multiple points respectively, or can be cut sequentially in left-right order, but cutting the reserved section L is strictly prohibited.

[0044] Among them, the positioning of the horizontal cutting line is determined comprehensively based on the specifications of the horizontally placed steel scrap equipment 1, the cutting equipment, the mechanical capacity, etc.

[0045] Among them, the length of the cutting reserved section L is determined comprehensively based on the specifications, wall thickness, mechanical equipment capacity, bearing capacity of the cutting reserved section L, and internal support of the horizontally placed steel waste equipment 1.

[0046] Among them, the longitudinal cutting line and the transverse cutting line can be selected by automatic cutting equipment or manual cutting according to the outer wall condition of the horizontally placed steel waste equipment 1. When manual cutting is adopted, an extended rod cutting gun should be used for the high cutting line.

[0047] Step S4, by cutting off the cutting reserved section L, removing the front middle block Sq and the rear middle block Sh, so that the arc-shaped upper cover 1-1 falls onto the arc-shaped lower cover 1-2, and the destructive decomposition of the horizontally placed steel waste equipment 1 is realized. Subsequently, after confirming that the fallen arc-shaped upper cover 1-1 is stable, the decomposition operation of the arc-shaped upper cover 1-1 and the arc-shaped lower cover 1-2 can be realized through conventional ground operations.

[0048] Thus, the present invention divides the outer wall of the horizontally placed steel waste equipment 1 into two upper and lower decomposition modules, namely, the arc-shaped upper cover 1-1 and the arc-shaped lower cover 1-2, and 2N+2 local decomposition modules located in the middle, including N+1 front middle blocks Sq and N+1 rear middle blocks Sh, through the position distribution of the longitudinal cutting line and the transverse cutting line, and through the construction steps of first cutting the longitudinal cutting line and the transverse cutting line and then cutting the reserved section L, so that the middle part of the horizontally placed steel waste equipment 1 is destructively decomposed into N+1 front middle blocks Sq and N+1 rear middle blocks Sh, and the arc-shaped upper cover 1-1 falls onto the arc-shaped lower cover 1-2, so that the decomposition operation of the arc-shaped upper cover 1-1 and the arc-shaped lower cover 1-2 can be realized by conventional ground operations, thereby realizing the destructive decomposition of the horizontally placed steel waste equipment 1; therefore, the present invention has the advantages of low safety risk, fast construction speed and low cost.

[0049] Furthermore, the present invention can be implemented by placing the steel scrap equipment 1 horizontally with conventional equipment at the construction site, without the need to configure a separate machine for the decomposition operation.

[0050] Moreover, the construction work of the present invention does not require the setting up of a scaffolding work platform, does not involve high-altitude work, has low safety risks, high decomposition efficiency, and low construction costs.

[0051] The above is a basic implementation of the present invention, and further optimization, improvement and limitation can be made on the basis of the basic implementation:

[0052] Preferably, in step S2 and step S3, the longitudinal cutting line extends in the vertical direction, and the transverse cutting line extends in the horizontal direction; the front middle block Sq and the rear middle block Sh are both rectangular blocks.

[0053] Preferably, in the step S4, the reserved cutting section L is torn, tempered or sheared using hydraulic shears.

[0054] Preferably, in step S4, the front middle block Sq and the rear middle block Sh, which are symmetrically arranged front to back, are removed in pairs in sequence from left to right or from right to left, so that the arc-shaped upper cover 1-1 gradually falls from left to right or from right to left onto the arc-shaped lower cover 1-2 during the removal process, thereby improving the safety of the present invention.

[0055] Preferably, for the case where the interior of the horizontally placed steel scrap equipment 1 includes internal supports, in the step S4, as the front middle block Sq and the rear middle block Sh that are symmetrically arranged front and back are removed in pairs in sequence, the internal supports at the positions where the front middle block Sq and the rear middle block Sh are located are removed simultaneously to release the constraints of the internal supports on the arc-shaped upper cover 1-1.

[0056] The present invention is not limited to the above-mentioned specific implementation modes. According to the above-mentioned contents, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the present invention, the present invention can also make other various forms of equivalent modifications, replacements or changes, all of which fall within the protection scope of the present invention.

Claims

1. A destructive decomposition method for horizontally placed steel waste equipment, which is applicable to horizontally placed steel waste equipment (1) formed by directional dumping and dismantling of steel vertical cylinder equipment; It is characterized in that include: Step S1, calibrating the longitudinal cutting line, the transverse cutting line and the reserved cutting section of the horizontally placed steel waste equipment (1); Step S2, according to the line setting calibration, cutting N pairs of longitudinal cutting lines is performed, wherein N ≥ 2, each pair of longitudinal cutting lines includes a front longitudinal cutting line (Zq) and a rear longitudinal cutting line (Zh) arranged symmetrically in the front and rear directions, and each group of longitudinal cutting lines is evenly spaced in the left and right directions; Step S3, according to the line setting calibration, cutting of two groups of transverse cutting lines arranged symmetrically in the upper and lower directions is performed, wherein the first group of transverse cutting lines includes N+2 pairs of upper transverse cutting lines evenly spaced in the left-right direction, and each pair of upper transverse cutting lines includes a front upper transverse cutting line (Hqs) and a rear upper transverse cutting line (Hhs) symmetrically arranged in the front-back direction, and the second group of transverse cutting lines includes N+2 pairs of lower transverse cutting lines evenly spaced in the left-right direction, and each pair of lower transverse cutting lines includes a front lower transverse cutting line (Hqx) and a rear lower transverse cutting line (Hhx) symmetrically arranged in the front-back direction; Furthermore, the positions of the transverse cutting lines satisfy the following conditions: the first pair of upper transverse cutting lines and the lower transverse cutting lines are connected to the left edge (1z) of the horizontally placed waste steel equipment (1), the last pair of upper transverse cutting lines and the lower transverse cutting lines are connected to the right edge (1y) of the horizontally placed waste steel equipment (1), and the middle N pairs of upper transverse cutting lines and the lower transverse cutting lines are respectively connected to the N pairs of longitudinal cutting lines; Therefore, the interval between two adjacent transverse cutting lines is recorded as the cutting reserved section (L), and each quadrilateral area enclosed by the left edge (1z), the right edge (1y), the front longitudinal cutting line (Zq), the front upper transverse cutting line (Hqs), and the front lower transverse cutting line (Hqx) of the horizontally placed steel waste equipment (1) is recorded as the front middle block (Sq), and the left edge (1z), the right edge (1y), the front longitudinal cutting line (Zq), and the front upper transverse cutting line (Hqs), and the front lower transverse cutting line (Hqx) of the horizontally placed steel waste equipment (1) are recorded as the front middle block (Sq). y), the rear longitudinal cutting line (Zh), the rear upper transverse cutting line (Hhs), and the rear lower transverse cutting line (Hhx) are all recorded as the rear middle block (Sh); that is, each front middle block (Sq) and each rear middle block (Sh) are respectively connected to the arc-shaped upper cover (1-1) and the arc-shaped lower cover (1-2) of the horizontally placed steel waste equipment (1) through two upper and lower symmetrical cutting reserved sections (L); Step S4, by cutting off the reserved cutting section (L), removing each front middle block (Sq) and rear middle block (Sh), so that the arc-shaped upper cover (1-1) falls onto the arc-shaped lower cover (1-2), thereby achieving destructive decomposition of the horizontally placed steel waste equipment (1).

2. The destructive decomposition method for horizontally placed steel waste equipment according to claim 1, characterized in that: In step S2 and step S3, the longitudinal cutting line extends in the vertical direction, and the transverse cutting line extends in the horizontal direction; the front middle block (Sq) and the rear middle block (Sh) are both rectangular blocks.

3. The destructive decomposition method of horizontally placed steel waste equipment according to claim 1 or 2, characterized in that: In the step S4, a hydraulic shear is used to tear, forge or cut the reserved cutting section (L).

4. The destructive decomposition method for horizontally placed steel waste equipment according to claim 1 or 2, characterized in that: In the step S4, the front middle block (Sq) and the rear middle block (Sh) symmetrically arranged front to back are removed in pairs in sequence from left to right or from right to left.

5. The destructive decomposition method for horizontally placed steel waste equipment according to claim 4 is characterized in that: In the case where the horizontally placed scrap steel equipment (1) contains internal supports, in step S4, as the front middle block (Sq) and the rear middle block (Sh) symmetrically arranged front and back are removed in pairs in sequence, the internal supports at the positions where the front middle block (Sq) and the rear middle block (Sh) are located are removed simultaneously.

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