Novel air leakage prevention water distribution plate of circular cooler

Abstract

The utility model belongs to the technical field of sintering circular coolers, and particularly relates to a novel air leakage prevention water distribution plate of a circular cooler. Comprising a plurality of secondary water distribution plates and a plurality of primary water distribution plates, the top ends of the secondary water distribution plates and the primary water distribution plates are in bolted connection with unequal angle steel through a plurality of T-shaped bolt pairs, supports are welded to the middle positions of the side faces of the secondary water distribution plates and the primary water distribution plates, and channel steel is welded to the lower positions of the side faces of the secondary water distribution plates and the primary water distribution plates in a staggered mode. A plurality of secondary connecting holes are symmetrically formed in the two ends of the secondary water distribution plate, connecting plates are welded to the two ends of one side of the primary water distribution plate, a plurality of primary connecting holes are formed in the connecting plates, and connecting bolt pairs are jointly connected into the primary connecting holes and the secondary connecting holes in a penetrating mode. The secondary water diversion plate and the primary water diversion plate are mounted in a matched manner, and finally a stable whole is formed in a manner of combining bolt connection and welding, so that the problem that the welding part of the original water diversion plate is cracked is solved, the air leakage rate of the circular cooler is greatly reduced, the utilization rate is remarkably improved, and the energy consumption saving effect is remarkable.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering ring coolers, and in particular relates to a novel air leakage-proof water distribution plate for a ring cooler. Background Art

[0002] At present, most of the sintering ore cooling devices used in the steel industry at home and abroad adopt annular cooling blast coolers. In order to improve the cooling effect and sealing performance of the annular coolers, some annular coolers have been converted from traditional ordinary rubber labyrinth seals to water tank seal structures. As the core component of the water tank seal, the water divider plate plays the role of dynamic sealing for the annular cooler trolley. Since the bellows side of the water divider plate is affected by the wind pressure of the annular cooling blower, and the water divider plate is affected by the alternating thermal stress during operation, the original water divider plate structure often bulges and cracks, resulting in serious air leakage in the annular cooler water divider plate, the utilization coefficient of the annular cooler gradually decreases, the energy consumption increases sharply, and even affects the cooling efficiency of the sintered ore, causing a hidden danger of burning to the subsequent belt system. Therefore, it is of great significance to propose an anti-leakage water divider plate for annular cooler. Summary of the invention

[0003] The utility model aims to provide a novel air leakage-proof water distribution plate for annular cooler to solve the problems existing in the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A new type of air leakage prevention water distribution plate for an annular cooler comprises a plurality of sub-water distribution plates and a plurality of main water distribution plates. The tops of the sub-water distribution plates and the main water distribution plates are bolted with unequal angle steels through a plurality of T-bolt pairs. Brackets are welded to the middle positions of the sides of the sub-water distribution plates and the main water distribution plates. Channel steels are staggeredly welded to the lower positions of the sides of the sub-water distribution plates and the main water distribution plates. A plurality of sub-connection holes are symmetrically provided at both ends of the sub-water distribution plates. Connecting plates are welded to both ends of one side of the main water distribution plate. A plurality of main connecting holes are provided on the connecting plates. Connecting bolt pairs are passed through the main connecting holes and the sub-connection holes. Two bending parts are welded to one end of the main water distribution plate.

[0006] Furthermore, the sub-water-dividing plate and the main water-dividing plate are both arc-shaped, and the outer dimensions of the sub-water-dividing plate are the same as those of the main water-dividing plate. A number of strip holes are opened at the upper ends of the sub-water-dividing plate and the main water-dividing plate. Four strip holes form a hole group. The four strip holes in a hole group are distributed in a rectangular array, and several hole groups are distributed linearly. The bracket and channel steel are located on the outer arc surface of the sub-water-dividing plate and the main water-dividing plate.

[0007] Furthermore, the length of the channel steel is the same as that of the sub-water-dividing plate, one end of the channel steel protrudes out of the outside of the sub-water-dividing plate and the main water-dividing plate, and the other end of the channel steel is located on the inside of the sub-water-dividing plate and the main water-dividing plate. A retreat groove is opened on the channel steel, and the position of the retreat groove is located at the intersection of the channel steel and the connecting plate, so as to allow the connecting plate to pass through the retreat groove.

[0008] Furthermore, the connecting plate is welded to one side of the outer arc surface of the mother water-dividing plate, a part of the connecting plate protrudes out of the mother water-dividing plate, the mother connecting hole is located at the position where the connecting plate protrudes out of the mother water-dividing plate, the position and number of the mother connecting holes correspond to the position and number of the sub-connecting holes, and the bolt tail of the connecting bolt pair faces the outer arc surface of the sub-connecting plate.

[0009] Furthermore, the bending piece is arc-shaped, one end of the bending piece is welded to the outer arc surface of the mother water distribution plate, and the other end of the bending piece bypasses the connecting plate and protrudes out of the outer side of the mother water distribution plate.

[0010] Furthermore, the unequal angle steel is in an L-shape with unequal sides, the length of the unequal angle steel is the same as the length of the sub-water-dividing plate, a plurality of through holes are opened on one side of the unequal angle steel, the shape, position and arrangement of the through holes correspond to the shape, position and arrangement of the strip holes, the side of the unequal angle steel with the through holes is located on the inner arc surface of the sub-water-dividing plate and the main water-dividing plate, a double-layer core wire rubber sealing gasket is provided between the unequal angle steel and the sub-water-dividing plate and the main water-dividing plate, a plurality of installation holes are opened on the other side of the unequal angle steel, and the side of the unequal angle steel with the installation holes faces the outer arc surface of the sub-water-dividing plate and the main water-dividing plate.

[0011] Furthermore, the unequal angle steels are connected to the sub-water distribution plate and the main water distribution plate through T-bolt pairs, perforations, double-layer core wire rubber sealing pads, and strip holes. The head end of the T-bolt pair is located on the outside of the unequal angle steel, and the head end of the T-bolt pair is perpendicular to the strip hole. Two auxiliary positioning blocks are welded to the unequal angle steel at the diagonal position of the head end of the T-bolt pair, and the two auxiliary positioning blocks both abut the outer wall of the head end of the T-bolt pair.

[0012] A novel method for installing a leak-proof water distribution plate for an annular cooler comprises the following steps:

[0013] (1) Build a maintenance platform at the construction site, start the ring cooler turntable to move the required sub-water distribution plate and main water distribution plate to the maintenance platform, open the drain valve of the ring cooler water tank, drain all the water in the water tank, cut off the water tank and the original water distribution plate at the construction site, and transport them to the maintenance platform;

[0014] (2) Bolt the unequal angle steel to the rotating body frame of the annular cooler through the mounting hole in the specified direction, pass the T-bolt pair head through the strip hole and rotate it so that the auxiliary positioning block clamps the T-bolt pair head, punch several holes in the double-layer core rubber sealing gasket in advance, and put the double-layer core rubber sealing gasket on the corresponding T-bolt pair through the punched holes. Use a fall chain to lift the main water distribution plate or the sub-water distribution plate to the corresponding position in the water tank, and put the perforated holes on the main water distribution plate or the sub-water distribution plate on the corresponding T-bolt pair, first tighten the gasket and nut of one T-bolt pair, then adjust the position of the main water distribution plate or the sub-water distribution plate by the fall chain, and finally tighten all the T-bolt pairs;

[0015] (3) Install the main water-dividing plate and the sub-water-dividing plate at intervals according to the method of step (2), pass the connecting bolt pair through the corresponding main connecting hole and sub-connecting hole from the inner arc surface, weld the head end of the connecting bolt pair to the sub-connecting plate, and then tighten the nut of the connecting bolt pair to fix the sub-water-dividing plate on the main water-dividing plate. At the same time, press the channel steel and the bent part of the main water-dividing plate on the adjacent sub-water-dividing plate, and the retreat groove of the channel steel of the sub-water-dividing plate clamps the connecting plate of the adjacent main water-dividing plate to ensure that the verticality tolerance of the main water-dividing plate, the sub-water-dividing plate and the revolving frame is 90±0.5 degrees;

[0016] After being put in place, fully weld the contact between the connection plate and the sub-water distribution plate, the contact between the channel steel and the main water distribution plate, the sub-water distribution plate, and between the channel steels, and the contact between the bent parts and the sub-water distribution plate;

[0017] (4) Cut and weld the joints between the original water distribution plate and the sub-water distribution plate or the main water distribution plate, install the dust cover on the bracket to prevent dust from entering the water tank under the annular cooler and causing the water tank to aggregate. After installation, reset and weld the cut part of the water tank, and complete the installation after the machine is tested and checked;

[0018] (5) When replacing part of the main water distribution plate or the sub-water distribution plate again, cut the part that needs to be replaced from the outside of the annular cooler bellows, loosen the T-bolt pair, and rotate the T-bolt pair to remove the cut part from the unequal angle steel. When replacing it again, there is no need to install the unequal angle steel again.

[0019] The utility model has the following beneficial effects:

[0020] 1. The sub-water distribution plate and the main water distribution plate of the utility model are installed in coordination with each other, and finally form a stable whole by combining bolt connection and welding, thereby solving the problem of cracking at the welding position of the original water distribution plate, greatly reducing the air leakage rate of the annular cooler, significantly improving the utilization rate, and significantly saving energy consumption.

[0021] 2. The staggered channel steels and bent parts can be connected and reinforced over a large area, making the water distribution plate more solid as a whole after installation, while also maintaining the roundness of the bottom of the water distribution plate.

[0022] 3. When replacement is required, construction can be carried out on the outside of the bellows of the annular cooler. Workers do not need to enter the bellows to operate, which effectively improves construction safety. After shutdown, the water distribution plate can be replaced immediately without waiting for the annular cooler to cool down. The operation process is simplified and the construction time is greatly shortened.

[0023] 4. The sub-water distribution plate and the main water distribution plate are connected to the rotating frame of the annular cooler through a T-bolt pair, and the annular cooler can be quickly detached from the rotating frame of the annular cooler from the outside of the annular cooler wind box without damaging the rotating frame of the annular cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the mother water distribution plate of the utility model.

[0025] Figure 2 This utility model Figure 1 Enlarged structural diagram at A in the middle.

[0026] Figure 3 The utility model is a schematic diagram of the connection structure of a T-bolt pair and an unequal angle steel.

[0027] Figure 4 It is a structural schematic diagram of the sub-water distribution plate of the utility model.

[0028] Figure 5 It is a structural schematic diagram of the connection between the sub-water distribution plate and the main water distribution plate of the utility model.

[0029] Among them: 1. Sub-water distribution plate; 2. Main water distribution plate; 3. T-bolt pair; 4. Unequal angle steel; 5. Bracket; 6. Channel steel; 7. Sub-connecting hole; 8. Main connecting hole; 9. Connecting plate; 10. Connecting bolt pair; 11. Strip hole; 12. Setback groove; 13. Perforation; 14. Double-layer core wire rubber sealing pad; 15. Mounting hole; 16. Auxiliary positioning block; 17. Bending part. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with specific embodiments and drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] Embodiment 1:

[0032] like Figure 1-5 As shown, a new type of anti-leakage water distribution plate for an annular cooler includes a plurality of sub-water distribution plates 1 and a plurality of main water distribution plates 2. The tops of the sub-water distribution plates 1 and the main water distribution plates 2 are bolted with unequal angle steels 4 through a plurality of T-bolt pairs 3. The middle positions of the sides of the sub-water distribution plates 1 and the main water distribution plates 2 are welded with brackets 5. The lower positions of the sides of the sub-water distribution plates 1 and the main water distribution plates 2 are staggeredly welded with channel steels 6. A plurality of sub-connecting holes 7 are symmetrically opened at both ends of the sub-water distribution plate 1. Both ends of one side of the main water distribution plate 2 are welded with connecting plates 9. A plurality of main connecting holes 8 are opened on the connecting plate 9. The main connecting holes 8 and the sub-connecting holes 7 are commonly penetrated with connecting bolt pairs 10. One end of the main water distribution plate 2 is welded with two bent parts 17.

[0033] The sub-water-dividing plate 1 and the main water-dividing plate 2 are both arc-shaped, and the outer dimensions of the sub-water-dividing plate 1 are the same as those of the main water-dividing plate 2. The upper ends of the sub-water-dividing plate 1 and the main water-dividing plate 2 are both provided with a plurality of strip holes 11, and four strip holes 11 form a hole group. The four strip holes 11 in a hole group are distributed in a rectangular array, and a plurality of hole groups are distributed linearly. The bracket 5 and the channel steel 6 are located on the outer arc surface of the sub-water-dividing plate 1 and the main water-dividing plate 2. There are two water troughs on the annular cooler, namely the outer lower water trough and the inner lower water trough, both of which are annular and have a large diameter. The sub-water-dividing plate 1 and the main water-dividing plate 2 are arranged at intervals to form an overall annular water-dividing plate structure, and the lower part thereof is inserted into the water trough, so each sub-water-dividing plate 1 and the main water-dividing plate 2 are also in an arc shape with a small curvature.

[0034] The length of the channel steel 6 is the same as that of the sub-water divider 1. One end of the channel steel 6 protrudes out of the sub-water divider 1 and the main water divider 2, and the other end of the channel steel 6 is located inside the sub-water divider 1 and the main water divider 2. A retreat groove 12 is provided on the channel steel 6. The retreat groove 12 is located at the intersection of the channel steel 6 and the connecting plate 9, so that the connecting plate 9 passes through the retreat groove 12. The staggered channel steel 6 can be docked over a large area, making the installed water divider more solid as a whole, and also plays a role in maintaining the roundness of the bottom of the water divider.

[0035] The connecting plate 9 is welded to one side of the outer arc surface of the mother water-dividing plate 2, a part of the connecting plate 9 protrudes from the mother water-dividing plate 2, the mother connecting hole 8 is located at the part of the connecting plate 9 protruding from the mother water-dividing plate 2, the position and number of the mother connecting holes 8 correspond to the position and number of the sub-connecting holes 7, and the bolt tail of the connecting bolt pair 10 faces the outer arc surface of the sub-connecting plate 9. The connecting plate 9 is used to connect the sub-water-dividing plate 1 and the mother water-dividing plate 2, and full welding is performed after connection. Since the connecting plate 9 covers a part of the sub-water-dividing plate 1, the contact area is increased, and the welding area is also increased, thereby effectively preventing cracking at the joint.

[0036] The bending piece 17 is arc-shaped, one end of the bending piece 17 is welded to the outer arc surface of the mother water distribution plate 2, and the other end of the bending piece 17 bypasses the connecting plate 9 and protrudes out of the outside of the mother water distribution plate 2. The bending piece 17 is used to strengthen the connection between the sub-water distribution plate 1 and the mother water distribution plate 2.

[0037] The unequal angle steel 4 is L-shaped with unequal sides. The length of the unequal angle steel 4 is the same as that of the sub-water dividing plate 1. A plurality of through holes 13 are provided on one side of the unequal angle steel 4. The shape, position and arrangement of the through holes 13 correspond to the shape, position and arrangement of the strip holes 11. The side of the unequal angle steel 4 with the through holes 13 is located on the inner arc surface of the sub-water dividing plate 1 and the mother water dividing plate 2. A double-layer core wire rubber sealing gasket 14 is provided between the unequal angle steel 4 and the sub-water dividing plate 1 and the mother water dividing plate 2. A plurality of mounting holes 15 are provided on the other side of the unequal angle steel 4. The side of the unequal angle steel 4 with the mounting holes 15 faces the outer arc surface of the sub-water dividing plate 1 and the mother water dividing plate 2. The mounting holes 15 are used to bolt the unequal angle steel 4 to the rotary frame of the annular cooler.

[0038] The unequal angle steel 4 is bolted to the sub-water-dividing plate 1 and the main water-dividing plate 2 through a T-bolt pair 3, a through hole 13, a double-layer core rubber sealing gasket 14, and a strip hole 11. The head end of the T-bolt pair 3 is located on the outside of the unequal angle steel 4, and the head end of the T-bolt pair 3 is perpendicular to the strip hole 11. Two auxiliary positioning blocks 16 are welded on the unequal angle steel 4 at the diagonal position of the head end of the T-bolt pair 3, and the two auxiliary positioning blocks 16 both abut against the outer wall of the head end of the T-bolt pair 3. The unequal angle steel 4 can be bolted and separated from the sub-water-dividing plate 1 and the main water-dividing plate 2 by rotating the T-bolt pair 3. The auxiliary positioning block 16 is used to limit the head end of the T-bolt pair 3. When the head end of the T-bolt pair 3 is perpendicular to the strip hole 11, it is in a bolted state, and when the head end of the T-bolt pair 3 is parallel to the strip hole 11, it is in a disengaged state, and the T-bolt pair 3 can be pulled out of the through hole 13.

[0039] Embodiment 2:

[0040] The utility model is installed through the following steps:

[0041] (1) Build a maintenance platform at the construction site, start the annular cooler turntable to move the required sub-water distribution plate 1 and main water distribution plate 2 to the maintenance platform, open the drain valve of the annular cooler water tank, drain all the water in the water tank, cut off the water tank and the original water distribution plate at the construction site, and transport them to the maintenance platform.

[0042] When replacing a whole circle of water distribution plates, multiple construction points are set up in the inner and outer circles of the water tank. Each construction point has corresponding personnel working at the same progress. After replacing the local water distribution plates, the rotating frame of the ring cooler is turned once. The turning angle is the angle required for each replacement of the water distribution plates. After that, each construction point continues to replace the water distribution plates in each area. This process is repeated, greatly improving the replacement efficiency of the whole circle of water distribution plates.

[0043] (2) Bolt the unequal angle steel 4 to the rotating body frame of the annular cooler through the mounting hole 15 in the specified direction, pass the head end of the T-bolt pair through the strip hole 11 and rotate it so that the auxiliary positioning block 16 can clamp the head end of the T-bolt pair, punch several holes in the double-layer core rubber sealing gasket 14 in advance, and put the double-layer core rubber sealing gasket 14 on the corresponding T-bolt pair through the punched holes. Use a fall chain to lift the main water distribution plate 2 or the sub-water distribution plate 1 to the corresponding position in the water tank, and put the through hole 13 on the main water distribution plate 2 or the sub-water distribution plate 1 on the corresponding T-bolt pair, first tighten the gasket and nut of one T-bolt pair, then adjust the position of the main water distribution plate 2 or the sub-water distribution plate 1 by the fall chain, and finally tighten all the T-bolt pairs.

[0044] (3) Install the main water-dividing plate 2 and the sub-water-dividing plate 1 at intervals according to the method of step (2), pass the connecting bolt pair 10 from the inner arc surface through the corresponding main connecting hole 8 and sub-connecting hole 7, weld the head end of the connecting bolt pair 10 to the sub-connecting plate 9, and then tighten the nut of the connecting bolt pair 10 to fix the sub-water-dividing plate 1 on the main water-dividing plate 2. At the same time, the channel steel 6 and the bent part 17 of the main water-dividing plate 2 are pressed on the adjacent sub-water-dividing plate 1, and the retreat groove 12 of the channel steel 6 of the sub-water-dividing plate 1 clamps the connecting plate 9 of the adjacent main water-dividing plate 2, so as to ensure that the verticality tolerance of the main water-dividing plate 2, the sub-water-dividing plate 1 and the revolving frame is 90±0.5 degrees.

[0045] After being in place, the contact between the connecting plate 9 and the sub-water dividing plate 1 is fully welded, the contact between the channel steel 6 and the main water dividing plate 2, the sub-water dividing plate 1 and between the channel steels 6 are fully welded, and the contact between the bent part 17 and the sub-water dividing plate 1 is fully welded.

[0046] (4) Cut and weld the joints between the original water distribution plate and the sub-water distribution plate 1 or the main water distribution plate 2, and install the dust cover on the bracket 5 to prevent dust from entering the water tank under the annular cooler and causing water tank aggregate. After installation, reset and weld the cut part of the water tank, and complete the installation after the machine is tested and checked.

[0047] (5) When replacing part of the main water distribution plate 2 or the sub-water distribution plate 1 again, cut the part that needs to be replaced from the outside of the annular cooler bellows, loosen the T-bolt pair, and rotate the T-bolt pair to remove the cut part from the unequal angle steel 4. When replacing it again, there is no need to install the unequal angle steel 4 again.

[0048] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention shall fall within the scope of protection of the present invention.

[0049] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A new type of anti-leakage water distribution plate for annular cooler, characterized in that: It comprises a plurality of sub-water-dividing plates and a plurality of mother water-dividing plates, the tops of the sub-water-dividing plates and the mother water-dividing plates are bolted with unequal angle steels through a plurality of T-bolt pairs, the middle positions of the sides of the sub-water-dividing plates and the mother water-dividing plates are welded with brackets, the lower positions of the sides of the sub-water-dividing plates and the mother water-dividing plates are staggeredly welded with channel steels, a plurality of sub-connecting holes are symmetrically provided at both ends of the sub-water-dividing plates, connecting plates are welded at both ends of one side of the mother water-dividing plate, a plurality of mother connecting holes are provided on the connecting plates, connecting bolt pairs are passed through the mother connecting holes and the sub-connecting holes, and two bending parts are welded at one end of the mother water-dividing plate.

2. The novel anti-leakage water distribution plate for annular cooler according to claim 1 is characterized in that: The sub-water-dividing plate and the main water-dividing plate are both arc-shaped, and the outer dimensions of the sub-water-dividing plate are the same as those of the main water-dividing plate. A plurality of strip holes are opened at the upper ends of the sub-water-dividing plate and the main water-dividing plate. Four strip holes form a hole group. The four strip holes in a hole group are distributed in a rectangular array, and several hole groups are distributed linearly. The bracket and the channel steel are located on the outer arc surface of the sub-water-dividing plate and the main water-dividing plate.

3. The novel anti-leakage water distribution plate for annular cooler according to claim 2 is characterized in that: The length of the channel steel is the same as that of the sub-water-dividing plate. One end of the channel steel protrudes out of the outside of the sub-water-dividing plate and the main water-dividing plate, and the other end of the channel steel is located on the inside of the sub-water-dividing plate and the main water-dividing plate. A retreat groove is opened on the channel steel, and the position of the retreat groove is located at the intersection of the channel steel and the connecting plate, which is used to allow the connecting plate to pass through the retreat groove.

4. The novel anti-leakage water distribution plate for annular cooler according to claim 2 is characterized in that: The connecting plate is welded to one side of the outer arc surface of the mother water-dividing plate, and a part of the connecting plate protrudes out of the mother water-dividing plate. The mother connecting hole is located at the position where the connecting plate protrudes out of the mother water-dividing plate. The position and number of the mother connecting holes correspond to the position and number of the sub-connecting holes, and the bolt tail of the connecting bolt pair faces the outer arc surface of the sub-connecting plate.

5. The novel anti-leakage water distribution plate for annular cooler according to claim 4 is characterized in that: The bending piece is arc-shaped, one end of the bending piece is welded to the outer arc surface of the mother water distribution plate, and the other end of the bending piece bypasses the connecting plate and then protrudes out of the outer side of the mother water distribution plate.

6. The novel anti-leakage water distribution plate for annular cooler according to claim 2 is characterized in that: The unequal angle steel is in an L-shape with unequal sides, and the length of the unequal angle steel is the same as the length of the sub-water-dividing plate. A plurality of through holes are opened on one side of the unequal angle steel, and the shape, position and arrangement of the through holes correspond to the shape, position and arrangement of the strip holes. The side of the unequal angle steel with the through holes is located on the inner arc surface of the sub-water-dividing plate and the mother water-dividing plate. A double-layer core wire rubber sealing gasket is provided between the unequal angle steel and the sub-water-dividing plate and the mother water-dividing plate. A plurality of installation holes are opened on the other side of the unequal angle steel, and the side of the unequal angle steel with the installation holes faces the outer arc surface of the sub-water-dividing plate and the mother water-dividing plate.

7. The novel anti-leakage water distribution plate for annular cooler according to claim 6 is characterized in that: The unequal angle steel is connected to the sub-water distribution plate and the main water distribution plate through T-bolt pairs, perforations, double-layer core wire rubber sealing pads, and strip holes. The head end of the T-bolt pair is located on the outside of the unequal angle steel, and the head end of the T-bolt pair is perpendicular to the strip hole. Two auxiliary positioning blocks are welded to the unequal angle steel at the diagonal position of the head end of the T-bolt pair, and the two auxiliary positioning blocks both abut the outer wall of the head end of the T-bolt pair.

Images