阅读说明：本技术 一种窄空间大管件安装方法 (Narrow-space large pipe fitting installation method ) 是由 查海涛 张弛 余宝为 姚存德 李明华 钱芳 于 2019-10-22 设计创作，主要内容包括：本发明公开了一种窄空间大管件安装方法,包括以下步骤,步骤一：在暗涵内管件待安装部位安装两组手动葫芦起吊支架,管枕摆放在暗涵墙壁处；步骤二：启用起吊设备将管件运至涵洞口,将延伸入涵洞口、伸入的距离至少为管长的1/2,将伸入的放置在无轨下车上；步骤三：运用无轨小车设备将管件运至暗涵管件安装位置下方；步骤四：利用两组手动葫芦起吊支架将管件吊起至相同高度,将无轨小车移走；步骤五：同时拉动两组葫芦、使两个管件以相同的下降速度慢放于管枕上,之后紧固螺栓；步骤六：重复上述步骤直至安装结束。采用了本发明后,克服了管件安装就位的困难的问题,缩短了窄空间内施工安装时限,提高生产率。(The invention discloses a method for installing a large pipe fitting in a narrow space, which comprises the following steps: two groups of manual hoist hoisting supports are arranged at the to-be-installed part of the pipe fitting in the hidden culvert, and the pipe pillow is placed on the wall of the hidden culvert; step two: hoisting equipment is started to convey the pipe fittings to the culvert opening, 1/2 which extends into the culvert opening and has the length of at least the pipe is inserted, and the inserted pipe fittings are placed on the trackless lower vehicle; step three: conveying the pipe fittings to the lower part of the installation position of the hidden culvert pipe fittings by using trackless trolley equipment; step four: hoisting the pipe fitting to the same height by using two groups of hand-operated hoist hoisting supports, and moving the trackless trolley away; step five: simultaneously pulling the two groups of hoists to enable the two pipe fittings to be slowly placed on the pipe pillow at the same descending speed, and then fastening the bolts; step six: and repeating the steps until the installation is finished. After the invention is adopted, the problem of difficulty in mounting the pipe fittings in place is solved, the construction and mounting time limit in a narrow space is shortened, and the productivity is improved.)

1. The method for installing the large pipe fitting in the narrow space is characterized by comprising the following steps

The method comprises the following steps: two groups of manual hoist hoisting supports are arranged at the to-be-installed part of the pipe fitting in the hidden culvert, and the pipe pillow is placed on the wall of the hidden culvert;

step two: hoisting equipment is started to convey the pipe fittings to the culvert opening, 1/2 which extends into the culvert opening and has the length of at least the pipe is inserted, and the inserted pipe fittings are placed on the trackless lower vehicle;

step three: conveying the pipe fittings to the lower part of the installation position of the hidden culvert pipe fittings by using trackless trolley equipment;

step four: hoisting the pipe fitting to the same height by using two groups of hand-operated hoist hoisting supports, and moving the trackless trolley away;

step five: simultaneously pulling the two groups of hoists to enable the two pipe fittings to be slowly placed on the pipe pillow at the same descending speed, and then fastening the bolts;

step six: and repeating the steps until the installation is finished.

Technical Field

The invention relates to a method for installing a large pipe fitting in a narrow space.

Background

At present, tailings, concentrate conveying pipelines and water return pipelines of concentrating plants in China are mostly steel pipes, the pipe diameters of the tailings, the concentrate conveying pipelines and the water return pipelines are large, and large pipe fittings can be transported and installed manually in various modes under the condition of large space, for example, the large pipe fittings are transported by using a dumper or installed by using a hoisting method. No matter whether the dumper is used for loading or the dumper is used for installing the dumper or the dumper is installed under the condition that the space is abundant and the terrain is flat, the dumper is required to be installed in a hidden culvert, large pipes cannot be conveyed to an installation position due to the fact that narrow spaces cannot enter the dumper, and the dumper is heavy in weight and cannot be carried and installed manually.

Disclosure of Invention

The invention aims to solve the problems that the hidden culvert space is narrow and long and large pipe fittings cannot be installed in place in the prior art.

The technical scheme adopted by the invention is as follows: the method for installing the large pipe fitting in the narrow space comprises the following steps

The method comprises the following steps: two groups of manual hoist hoisting supports are arranged at the to-be-installed part of the pipe fitting in the hidden culvert, and the pipe pillow is placed on the wall of the hidden culvert;

step two: hoisting equipment is started to convey the pipe fittings to the culvert opening, 1/2 which extends into the culvert opening and has the length of at least the pipe is inserted, and the inserted pipe fittings are placed on the trackless lower vehicle;

step three: conveying the pipe fittings to the lower part of the installation position of the hidden culvert pipe fittings by using trackless trolley equipment;

step four: hoisting the pipe fitting to the same height by using two groups of hand-operated hoist hoisting supports, and moving the trackless trolley away;

step five: simultaneously pulling the two groups of hoists to enable the two pipe fittings to be slowly placed on the pipe pillow at the same descending speed, and then fastening the bolts;

step six: and repeating the steps until the installation is finished.

The invention has the beneficial effects that: after the invention is adopted, the large pipe fitting is hoisted to the inlet of the narrow space by mainly using crane equipment; the trackless trolley equipment is used as an auxiliary, the large pipe fitting is placed on a trolley in a narrow space, and the trolley is manually transported to an installation position; and (4) combining a hand-operated hoist to position the large pipe fitting. The lifting safety of the crane is high, the installation efficiency is improved by using the trackless trolley, the construction and installation time limit in a narrow space is shortened, and the productivity is improved.

Drawings

FIG. 1 is a schematic diagram of the present invention.

Fig. 2 is a side view of fig. 1.

Shown in the figure: 1 hanging calabash, 2 pipelines, 3 trolley-bus trolleys and 4 pipe sleepers.

Detailed Description

The present invention is further described below.

The method for installing the large pipe fitting in the narrow space comprises the following steps

The method comprises the following steps: two groups of manual hoist hoisting supports are arranged at the to-be-installed part of the pipe fitting in the hidden culvert, and the pipe pillow is placed on the wall of the hidden culvert;

step two: hoisting equipment is started to convey the pipe fittings to the culvert opening, 1/2 which extends into the culvert opening and has the length of at least the pipe is inserted, and the inserted pipe fittings are placed on the trackless lower vehicle;

step three: conveying the pipe fittings to the lower part of the installation position of the hidden culvert pipe fittings by using trackless trolley equipment;

step four: hoisting the pipe fitting to the same height by using two groups of hand-operated hoist hoisting supports, and moving the trackless trolley away;

step five: simultaneously pulling the two groups of hoists to enable the two pipe fittings to be slowly placed on the pipe pillow at the same descending speed, and then fastening the bolts;

step six: and repeating the steps until the installation is finished.

The invention is thought to be adopted because the large hoisting equipment cannot be unfolded due to the geographical condition limitation when hoisting the pipe fittings through the culvert and cannot realize the transportation and the transportation of the pipe fittings. According to the invention, 2 groups of manual hoist hoisting supports are installed at the pipe fitting installation positions in the hidden culvert at intervals of about 6m, pipe sleepers are placed at the wall of the hidden culvert, after installation preparation is made in the hidden culvert, the pipe fittings are firstly placed on a trackless trolley by using hoisting equipment such as a crane and the like, the pipe fittings are conveyed into a narrow space by using the characteristics of small and simple trackless trolley equipment and simplicity in operation, and then the pipe fittings are hoisted by using the manual hoist, so that the problem of large weight of the pipe fittings is solved, the problem of difficulty in installing the pipe fittings in place is solved, attention needs to be paid to the fact that the two pipe fittings are hoisted to the same height by using the hoist, the two pipe fittings are lowered at the same speed, the installation stability is ensured, the efficient and safe installation of the large pipe fittings in the narrow space is.

It should be understood by those skilled in the art that the protection scheme of the present invention is not limited to the above-mentioned embodiments, and various permutations, combinations and modifications can be made on the above-mentioned embodiments without departing from the spirit of the present invention, and the modifications are within the scope of the present invention.