阅读说明：本技术 一种煤仓仓下配煤装置电子秤的安装方法 (Method for installing electronic scale of coal blending device under coal bunker ) 是由 尹耀斌 张鹏 于 2021-08-23 设计创作，主要内容包括：一种煤仓仓下配煤装置电子秤的安装方法,其特征在于包括以下步骤：a、安装圆盘给料机和煤仓仓下皮带机支架,皮带机支架的横梁作滚轮的滑轨使用,b、制作平板车,c、提供一台卷扬机,卷扬机固定在煤仓仓下皮带机支架的前端,d、在皮带机支架的一端,通过叉车将电子秤运至平板车上,e、重复步骤d依次安装其余电子秤,安装顺序从里往外,从一端向另一端安装。本发明的煤仓仓下配煤装置电子秤的安装方法具有平板车及其滑轨结构简单、制作方便,安装所需的作业面大大减小,无需修建大量临时道路,安装过程中减少了配煤装置电子秤的装卸、倒运次数,对成品设备的保护起到了很好的作用,提高安装速度,节省安装人工和降低工程成本的优点。(A method for installing an electronic scale of a coal blending device under a coal bunker is characterized by comprising the following steps: a. b, manufacturing a flat car, c, providing a winch, fixing the winch at the front end of the coal bunker lower belt conveyor support, d, transporting the electronic scale to the flat car at one end of the belt conveyor support through a forklift, e, repeating the step d, and sequentially mounting the other electronic scales from inside to outside in the mounting sequence from one end to the other end. The installation method of the electronic scale of the coal blending device under the coal bunker has the advantages that the structure of the flat car and the slide rail thereof is simple, the manufacture is convenient, the operation area required by the installation is greatly reduced, a large number of temporary roads are not required to be built, the loading, unloading and transporting times of the electronic scale of the coal blending device are reduced in the installation process, the protection of finished equipment is well realized, the installation speed is improved, the installation labor is saved, and the engineering cost is reduced.)

1. A method for installing an electronic scale of a coal blending device under a coal bunker is characterized by comprising the following steps:

a. mounting a disk feeder and a coal bunker lower belt conveyor bracket, wherein a cross beam of the belt conveyor bracket is used as a slide rail of a roller;

b. manufacturing a flat car, comprising the following steps:

(1) manufacturing a rectangular flatbed frame by using channel steel and angle steel according to the sizes of the electronic scale and the belt conveyor bracket;

(2) a plurality of roller supports are welded on two sides below the rectangular flat car frame at equal intervals, and rollers are arranged on the roller supports;

(3) arranging a steel bar frame along the periphery of the upper surface of the rectangular flat car frame, and fully paving a building template in the steel bar frame to prevent the building template from sliding out of the steel bar frame;

(4) one end of the rectangular flat car frame is provided with a flat car lifting lug which is used as a lifting lug for the flat car to pull to walk;

c. providing a winch, fixing the winch at the front end of a belt conveyor bracket under a coal bunker, and hooking a steel wire rope of the winch on a lifting lug at one end of a flat car;

d. conveying an electronic scale to the flat car through a forklift at one end of the belt conveyor support, starting a winch to drag the flat car to slide to a position needing to be installed, then installing a chain block above the electronic scale to hoist the electronic scale to a designed elevation, adjusting the plane position and the space height of the electronic scale, and fixing the electronic scale on the electronic scale support;

e. and d, repeating the step d, sequentially installing the rest electronic scales from inside to outside and from one end to the other end, and firstly installing the front electronic scale and then installing the rear electronic scale.

2. The method of installing an electronic scale for a coal blending unit below a coal bunker of claim 1, wherein the frame of the flat car is rectangular.

3. The method for installing the electronic scale of the coal blending device below the coal bunker as claimed in claim 1, wherein the steel reinforcement frame is made of steel reinforcement with a diameter of more than or equal to 16 mm.

4. The method for installing the electronic scale of the coal blending device under the coal bunker of claim 1, wherein the thickness of the building template is more than or equal to 15 mm.

5. The method for installing the electronic scale of the coal blending device under the coal bunker of claim 1, wherein the size of the lifting lug is 10mm thick steel plate, the size is 300 x 200mm, and a hole which extends forwards and backwards by 100mm is arranged in the middle of the steel plate.

Technical Field

The invention relates to an installation method of an electronic scale, in particular to an installation method of an electronic scale of a coal blending device under a coal bunker.

Background

The electronic scale of the coal blending device is widely applied to coal blending and conveying items of coking raw material coal bunkers of a steel mill, a plurality of same coal bunkers are generally arranged in a close proximity mode to form a straight line, 4 disc feeders are arranged below each coal bunker to feed coal to and discharge coal from a belt conveyor through the electronic scale of the coal blending, and a belt conveyor below the bunkers runs through all the coal bunkers in a straight line mode, so that the installation workload and the difficulty of the electronic scale of the coal blending are very large. The technological principle is that various kinds of coal are first fed from coal bin via disc feeder onto electronic scale of coal blending apparatus for metering, then fed onto belt conveyer and conveyed via belt to the required place in the plant. Therefore, the coal blending electronic scale is positioned between the disk feeder and the belt conveyor, so that the traditional installation sequence is that the disk feeder is installed firstly, then the coal blending electronic scale is installed, and finally the belt conveyor is installed, and the installation time is too long due to the installation sequence from top to bottom. Simultaneously the electronic scale installation degree of difficulty is also very big, and the electronic scale is the finished product equipment, and overall dimension is big, needs to reserve the installation entrance to a cave between adjacent coal bunker to construct temporary road, transport to the coal bunker limit with fork truck, reuse chain hoist moves the electronic scale into the storehouse little by little until the mounted position, then hangs the chain hoist at the mounted position top and up promotes the coal blending electronic scale to the design height, adjusts the planar position, the space height of electronic scale again, welds the electronic scale support after the position is correct, fixes the electronic scale. In the whole electronic scale installation process, a large amount of manpower and material resources are input into the transportation equipment in place, the installation precision control difficulty is very high, the finished product protection difficulty of the equipment in the transportation and installation processes is very high, the cross operation limits the progress of the whole project too much, and the safety risk is also very high.

Therefore, the known mounting mode of the electronic scale of the coal blending device under the coal bunker has various inconveniences and problems.

Disclosure of Invention

The invention aims to provide a safe and reliable installation method of an electronic scale of a coal blending device under a coal bunker.

In order to achieve the purpose, the technical solution of the invention is as follows:

a method for installing an electronic scale of a coal blending device under a coal bunker is characterized by comprising the following steps:

a. mounting a disk feeder and a coal bunker lower belt conveyor bracket, wherein a cross beam of the belt conveyor bracket is used as a slide rail of a roller;

b. manufacturing a flat car, comprising the following steps:

(1) manufacturing a rectangular flatbed frame by using channel steel and angle steel according to the sizes of the electronic scale and the belt conveyor bracket;

(2) a plurality of roller supports are welded on two sides below the rectangular flat car frame at equal intervals, and rollers are arranged on the roller supports;

(3) arranging a steel bar frame along the periphery of the upper surface of the rectangular flat car frame, and fully paving a building template in the steel bar frame to prevent the building template from sliding out of the steel bar frame;

(4) one end of the rectangular flat car frame is provided with a flat car lifting lug which is used as a lifting lug for the flat car to pull to walk;

c. providing a winch, fixing the winch at the front end of a belt conveyor bracket under a coal bunker, and hooking a steel wire rope of the winch on a lifting lug at one end of a flat car;

d. conveying an electronic scale to the flat car through a forklift at one end of the belt conveyor support, starting a winch to drag the flat car to slide to a position needing to be installed, then installing a chain block above the electronic scale to hoist the electronic scale to a designed elevation, adjusting the plane position and the space height of the electronic scale, and fixing the electronic scale on the electronic scale support;

e. and d, repeating the step d, sequentially installing the rest electronic scales from inside to outside and from one end to the other end, and firstly installing the front electronic scale and then installing the rear electronic scale.

The installation method of the electronic scale of the coal blending device under the coal bunker can be further realized by adopting the following technical measures.

The method of any preceding claim, wherein the flatbed frame is rectangular.

In the method, the steel bar frame is made of steel bars with the diameter of more than or equal to 16 mm.

In the method, the thickness of the building template is more than or equal to 15 mm.

In the method, the size of the lifting lug is 10mm thick steel plate, the size is 300 x 200mm, and a hole which extends forwards and backwards by 100mm is arranged in the middle of the steel plate.

After the technical scheme is adopted, the installation method of the electronic scale of the coal blending device under the coal bunker has the following advantages:

1. the flat car and the slide rail thereof have simple structure and convenient manufacture;

2. the working surface required by installation is greatly reduced, a large number of temporary roads do not need to be built, and the influence on other professional construction is small; the times of loading, unloading and transporting of the electronic scale of the coal blending device are reduced in the installation process, and the protection of finished equipment is well realized;

3. the installation speed of the electronic scale of the coal blending device is increased, the installation labor is saved, and the engineering cost is reduced.

Drawings

FIG. 1 is a schematic diagram of the position of an electronic scale of a coal blending device under a coal bunker in an embodiment of the invention;

FIG. 2 is a schematic view of the direction of travel of the flat car according to the embodiment of the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a schematic structural view of a flat car according to an embodiment of the present invention;

fig. 5 is a sectional view of B-B in fig. 4.

In the figure: the automatic conveying device comprises a disc feeder 1, an electronic scale 2, a belt conveyor 3, a flat car 4, a flat car frame 5, a steel wire rope 6, a winch 7, a belt conveyor support 8 and rollers 9.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

Example 1

Referring to fig. 1 and 2, fig. 1 is a schematic diagram illustrating a position of an electronic scale of a coal blending device under a coal bunker according to an embodiment of the present invention, and fig. 2 is a schematic diagram illustrating a direction of operation of a flat car according to an embodiment of the present invention.

The invention discloses an installation method of an electronic scale of a coal blending device under a coal bunker, which comprises the following steps:

1. firstly, the installation of the disc feeder 1 and the lower bin belt conveyor bracket 8 (the upper carrier roller bracket is not installed) is completed, and the cross beam of the belt conveyor bracket can be used as a slide rail of a roller.

2. According to the size of the supports of the electronic scale 2 and the belt conveyor 3, channel steel No. 10 and equilateral angle steel No. 5 are prepared, and a flat car frame is manufactured. 2 pieces of No. 10 channel steel with the length of 4 meters are cut, 4 pieces of No. 10 channel steel with the length of 1.65 meters (the width is the same as that of the belt bracket) are used as cross beams, and 4 pieces of No. 5 angle steel with the length of 1.92 are used as inclined struts. And the joints of the channel steel and the angle steel are all connected in a welding mode.

3. After the frame of the flat car is finished, preparing rollers and steel plates, starting to manufacture roller supports, taking two 10-thick steel plates, namely 200mm and 300mm, welding the rollers and the steel plates on two sides of the rollers, and sequentially finishing the manufacture of the 10 roller supports. Fig. 3 is a sectional view of a-a in fig. 2, and fig. 4 is a sectional view of B-B in fig. 2.

4. And the tops of the steel plates on two sides of the roller support are welded with the channel steel beam along the beam direction under the beams on two sides of the flat car frame, and the steel plates with the diameters of 200-300 mm of the roller support face inwards. The roller bracket is welded on each side at equal intervals, and 5 rollers 9 are arranged on each side. Fig. 5 is a schematic structural view of a flat car according to an embodiment of the present invention.

5. After flatbed frame 5 and gyro wheel installation are accomplished, along flatbed channel-section steel crossbeam top surface welding all around in 16 reinforcing bars for the fixed panel prevents the roll-off, in 16 reinforcing bars weld the back full 15 thick building templates of laying.

6. Preparing a 10-thick steel plate with the size of 300 x 200mm, taking the middle part to stretch out 100 holes, and welding the prepared steel plate and the cross beam at the middle position of the side surface of the cross beam at the front section of the flat car 4 to be used as a lifting lug for dragging and walking the flat car.

7. After the flat car is manufactured, the flat car is placed on the installed belt conveyor support, and the rollers fall on the cross beams on the two sides of the belt support. Preparing a winch 7, fixing the winch at the front end of the belt conveyor support, and hooking a steel wire rope 6 of the winch on a lifting lug at the front end of the flat plate.

8. At the one end of belt feeder support, on transporting the electronic scale to self-made flatbed through fork truck, open the hoist engine and pull the flatbed and slide to the position that needs the installation, then install the chain block and hang the electronic scale above the electronic scale, raise to the design elevation, adjust the plane position and the space height back of electronic scale, fix on the electronic scale support.

9. According to the method, other electronic scales are sequentially installed from inside to outside and from one end to the other end, the front electronic scale is installed first, and then the rear electronic scale is installed.

Compared with the traditional method for hauling one electronic scale to the installation position, the method greatly improves the installation efficiency, saves the labor, reduces the time for transporting heavy equipment upside down, saves the labor and the time and shortens the installation period. Meanwhile, the working surface required by installation is reduced, construction measure cost is saved, other professional construction time and fields are not occupied, cross operation is reduced, and safety risk is reduced. Because the times and the amplitude of equipment transfer and lifting are reduced in the installation process, the protection of finished products is well realized, and the installation quality and precision are ensured. Compared with the traditional method, the method has the advantages of simple operation, economy, practicality, high work efficiency, shortened installation period, guaranteed quality and safety, reduced installation cost, reusability and the like.

The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.