Device for installing coal tower funnel and using method

Abstract

A device for installing a coal tower funnel comprises a scissor-fork type lift truck body and a control system and is characterized in that the scissor-fork type lift truck body is provided with a fixed rectangular base, a flange connecting support is arranged on the side face of the base, and two scissor-fork type lift trucks (1 and 2) which are adjacently arranged can be fixedly connected through a connecting cross beam (5) by using bolts (7); a scissor type supporting frame (11) is arranged on a platform on the upper surface of the rectangular base in the length direction, the control system is in electrical linkage control, and the electrical linkage control is that the two operation tables (3) are synchronously lifted and lowered by pushing scissors to be unfolded and folded through stretching and retracting of an oil cylinder. The device for installing the coal tower funnel and the using method have the advantages that a scaffold does not need to be erected and dismantled, a hanging point does not need to be welded at high altitude, a chain block does not need to be manually pulled, construction is easy and convenient, safety and reliability are achieved, time and labor are saved, a large amount of time and measure cost are saved, and the construction efficiency is improved by 50% or above.

Description

Technical Field

[0001] The invention belongs to the technical field of metallurgical coke oven engineering installation. Specifically, it is a device and its usage method for the installation of a coal tower hopper. Background Art

[0002] In the construction of a coke oven project, the installation of a coal tower hopper is a key process in the installation of coal tower equipment. The coal tower hopper is located below the coal bunker (+32.3 m), and the installation height is about 13 m from the coal tower coal charging car layer (+18.45 m). The installation position is at the inner roof part of the coal tower room, where the crane cannot operate. The specifications of the coal tower hopper are as follows: the lower opening diameter is 0.9 m, the upper opening diameter is 1.7 m, the height is 2.7 m, the wall thickness is 12 mm, and the single weight is about 1.5 t. The overall hoisting is difficult, and the installation and adjustment are highly difficult. The installation accuracy of the coal tower hopper is high, and the allowable deviation of the center and elevation is ±5 mm.

[0003] In the past, for the installation of a coal tower hopper, lifting points were generally welded on the embedded parts at the lower part of the coal bunker, and a scaffold was erected. Then, 2 manual hoists were used to manually lift and install the coal tower hopper. However, this method has high construction difficulty and labor intensity. Multiple lifting points need to be welded at the lower part of the coal bunker, and the scaffold needs to be repeatedly erected and dismantled, consuming time and labor.

[0004] Therefore, the known installation methods of coal tower hoppers have the above-mentioned various inconveniences and problems. Summary of the Invention

[0005] The purpose of the invention is to provide a device for the installation of a coal tower hopper.

[0006] Another purpose of the invention is to provide a usage method for a device for the installation of a coal tower hopper.

[0007] To achieve the above purposes, the technical solution of the invention is as follows: A device for the installation of a coal tower hopper, including a scissor lift truck body and a control system, is characterized in that: The scissor lift truck body is provided with a fixed rectangular base. A flange connection support is provided on the side of the base, and two adjacent scissor lift trucks can be fixedly connected by bolts through a connecting cross beam; on the upper surface platform of the rectangular base, a scissor support frame is provided in the length direction. The top end of the scissor support frame is fixedly connected to an operating platform. Railings are provided around the operating platform. The top ends of the railings of two scissor lift trucks are cooperatively provided with a steel frame bracket. An I-shaped seat ring is provided in the middle of the steel frame bracket, and the I-shaped seat ring can stably fit into the waist of the hopper. The control system is an electrical interlock control. The electrical interlock control is to push the scissors to unfold and fold through the telescoping of the oil cylinder to complete the synchronous lifting of the two operating platforms.

[0008] The device for installing the coal tower funnel of the present invention can also be further realized by adopting the following technical measures.

[0009] For the aforementioned device for installing the coal tower funnel, support arms are provided at the four corners of the fixed rectangular base.

[0010] A method for using a device for installing a coal tower funnel, characterized by comprising the following steps: a. Use a truck crane to lift the coal tower funnel installation device to the platform between the coal tower and the coke oven; b. Place the scissor lift trucks side by side, install and connect the cross beam, and fix it with bolt 7; install the bracket on the top of the railing and fix it with bolts; c. Use a truck crane to lift and place the coal tower funnel on the bracket; d. The scissor lift trucks are controlled by electrical linkage to rise synchronously to lift the funnel to a height of 100 mm from the ground; through electrical linkage control, move the scissor lift trucks directly below the coal tower nozzle, and open the support arms; lift synchronously to align the coal tower funnel with the funnel embedded part, adjust the center and elevation, and weld and fix the coal tower funnel and the funnel embedded part to complete the installation of one funnel on the funnel steel platform; e. The scissor lift trucks descend synchronously to the low position, move to the platform between the coal tower and the coke oven, and repeat steps a - d to complete the installation of all funnels.

[0011] The method for using the device for installing the coal tower funnel of the present invention can also be further realized by adopting the following technical measures.

[0012] For the aforementioned method, the maximum stroke of the scissor lift truck is 14 m, and the load capacity of a single scissor lift truck is ≥2 t.

[0013] After adopting the above technical solutions, the device and the using method for installing the coal tower funnel of the present invention have the following advantages: 1. It is not necessary to set up and dismantle the scaffolding, and there is no need for high-altitude welding of lifting points and manual pulling of chain hoists; 2. The construction is simple, safe and reliable, saving time and effort; 3. It saves a large amount of time and measure costs, and the construction efficiency is increased by more than 50%. Description of the Drawings

[0014] Figure 1 It is the plan layout drawing of the coal tower funnel of the embodiment of the present invention; Figure 2 It is the sectional view of the coal tower funnel of the embodiment of the present invention; Figure 3 It is the structure and working state schematic diagram of the scissor lift truck of the embodiment of the present invention. Detailed Embodiments

[0015] The present invention will be further described in conjunction with the embodiments and their accompanying drawings.

[0016] Embodiment 1 Now please refer to Figures 1-3 , the device for installing the coal tower funnel of the present invention includes a scissor lift truck body and a control system.

[0017] The scissor lift truck body is provided with a fixed rectangular base. A flange connection support is provided on the side of the base, and two adjacent scissor lift trucks 1 and 2 can be fixedly connected by bolts 7 through a connecting cross beam 5; on the upper surface platform of the rectangular base, a scissor support frame 11 is provided in the length direction. The top end of the scissor support frame 11 is fixedly connected to an operating platform 3. Railings 4 are provided around the operating platform. The top ends of the railings of the two scissor lift trucks 1 and 2 are provided with a steel frame bracket 6 in cooperation. An I-shaped seat ring is provided in the middle of the steel frame bracket, and the I-shaped seat ring can stably fit into the waist of the funnel 9. The control system is an electrical interlock control. The electrical interlock control is to push the scissors to unfold and fold through the telescopic movement of the oil cylinder to complete the synchronous lifting of the two operating platforms 3. Support arms 8 are provided at the four corners of the fixed rectangular base.

[0018] Embodiment 2 The device for installing the coal tower funnel of the present invention and its usage method include the following steps: a. Use a truck crane to lift the coal tower funnel installation device to 18.45 m on the platform between the coal tower and the coke oven. b. Place the scissor lift trucks 1 and 2 side by side, install the connecting cross beam 5, and fix it with bolts 7; install the bracket 6 on the top end of the railing and fix it with bolts. c. Use a truck crane to lift and place the coal tower funnel 9 on the bracket 6. d. The scissor lift trucks 1 and 2 are synchronously lifted by electrical interlock control to lift the funnel to 100 mm above the ground; through electrical interlock control, move the scissor lift trucks 1 and 2 to directly below the coal tower nozzle, and open the support arms 8; synchronously lift to align the coal tower funnel 9 with the funnel embedded part 10, adjust the center and elevation, and weld and fix the coal tower funnel and the funnel embedded part to complete the installation of one funnel on the funnel steel platform; the maximum stroke of the scissor lift truck is 14 m, and the load capacity of a single scissor lift truck is 2 t.

[0019] e. The scissor lift trucks 1 and 2 are synchronously lowered to the low position, moved to the platform between the coal tower and the coke oven, and repeat steps a - d to complete the installation of all funnels.

[0020] The present invention has substantial features and remarkable technological progress. The device and method for installing the coal tower funnel of the present invention are simple in construction, safe and reliable, time-saving and labor-saving compared with the traditional method. There is no need to erect and dismantle scaffolding, no need to weld lifting points at high altitude and manually pull the chain block, saving a large amount of time and measure costs. Only 4 construction workers are needed, and it only takes 3 days to install all 12 nozzles, saving 6 days compared with the previous construction method, and the construction efficiency is increased by more than 50%, reducing the labor cost and measure costs.

[0021] The device for installing the coal tower funnel of the present invention can also be used for similar projects with large indoor floor height, large weight of equipment materials, installation of equipment components on the roof or upper part, and where cranes cannot enter for operation.

[0022] The above embodiments are only for illustrating the present invention, rather than limiting the present invention. Those skilled in the relevant technical fields can also make various transformations or changes without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions should also belong to the scope of the present invention and should be defined by each claim.

Claims

1. A device for the installation of a coal tower hopper, comprising a scissor lift truck body and a control system, characterized in that: The scissor lift truck body is provided with a fixed rectangular base, and a flange connection support is arranged on the side of the base. Two adjacent scissor lift trucks (1, 2) can be fixedly connected by bolts (7) through a connecting cross beam (5); a scissor support frame (11) is arranged on the upper surface platform of the rectangular base in the length direction. The top end of the scissor support frame (11) is fixedly connected to an operating platform (3). Railings (4) are arranged around the operating platform. The top ends of the railings of the two scissor lift trucks (1, 2) are cooperatively provided with a steel frame bracket (6). The middle part of the steel frame bracket is provided with a square-shaped seat ring, and the square-shaped seat ring can stably clamp into the waist of the hopper (9); The control system is an electrical interlock control. The electrical interlock control is to push the expansion and folding of the scissors through the telescopic movement of the oil cylinder to complete the synchronous lifting of the two operating platforms (3).

2. The device for installing the coal tower hopper according to claim 1, characterized in that, Support arms (8) are arranged at the four corners of the fixed rectangular base.

3. A method of using the device for installing a coal tower hopper as described in claim 1, characterized in that Including the following steps: a. Use a truck crane to lift the coal tower hopper installation device to the platform between the coal tower and the coke oven; b. Place the scissor lift trucks (1, 2) side by side, install the connecting cross beam (5), and fix it with bolts 7; install the bracket (6) on the top end of the railing and fix it with bolts; c. Use a truck crane to lift and place the coal tower hopper (9) on the bracket (6); d. The scissor lift trucks (1, 2) are synchronously lifted by electrical interlock control to lift the hopper to 100 mm above the ground; through electrical interlock control, move the scissor lift trucks (1, 2) directly below the coal tower nozzle, and open the support arms (8); synchronously lift to align the coal tower hopper (9) with the hopper embedded part (10), adjust the center and elevation, and weld and fix the coal tower hopper and the hopper embedded part to complete the installation of one hopper at the lower part of the coal bunker; e. The scissor lift trucks (1, 2) synchronously descend to the low position, move to the platform between the coal tower and the coke oven, and repeat steps a-d to complete the installation of all hoppers.

4. The method of using the device for installing the coal tower hopper according to claim 3, characterized in that The maximum stroke of the scissor lift truck is 14 m, and the load capacity of a single scissor lift truck is ≥2 t.

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