CN214732234U

CN214732234U - Heavy scale trigger that can weigh and measure

Info

Publication number: CN214732234U
Application number: CN202120873495.4U
Authority: CN
Inventors: 谭宏伟; 黄文静; 刘伟
Original assignee: YIDU ZHONGQI HEAVY INDUSTRY MACHINERY CO LTD
Current assignee: YIDU ZHONGQI HEAVY INDUSTRY MACHINERY CO LTD
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-16
Anticipated expiration: 2031-04-26

Abstract

A heavy scale plate machine capable of weighing and metering is characterized in that an upper rail and a lower rail are arranged on an inclined section of the heavy scale plate machine, a plurality of groups of supporting rollers are arranged between the upper rail and the lower rail and close to the head of the heavy scale plate machine, weighing sensors are arranged below the two groups of supporting rollers, driving devices of the two groups of weighing sensors and the heavy scale plate machine are respectively connected with a PLC (programmable logic controller), and feeding speed is adjusted in real time and accumulated weighing data are calculated. The utility model provides a pair of heavy scale trigger that can weigh and measure guarantees to normally reinforced to the melting furnace.

Description

Heavy scale trigger that can weigh and measure

Technical Field

The utility model relates to a heavy scale trigger, especially a heavy scale trigger of weighing measurement.

Background

The patent with the application number of 201711271053.7 named as 'a scrap steel apron conveyor, a conveying method and application' is a patent applied by the company in 2017. The patent does not weigh the scrap. However, in order to prevent the risk of molten metal rising due to the accumulation of scrap in the furnace during the transportation of the scrap into the furnace, the scrap must be weighed during the lifting process.

Disclosure of Invention

The utility model aims to solve the technical problem that a heavy scale trigger that can weigh and measure is provided, can accomplish weighing at the scrap steel operation in-process, guarantee to normally reinforced to the melting furnace.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a heavy scale trigger of weighing measurement, the suitable position disconnection of last track on heavy scale trigger's slope section and install weighing mechanism, weighing mechanism includes weighing sensor, and the weighing sensor below is installed on the supporting seat, and the supporting seat is fixed on heavy scale trigger's main part girder, and the weighing sensor upper end is connected with the tray, and the intercepting guide rail is installed to the tray upper end, and the intercepting guide rail is located disconnection department and with last track upper surface parallel and level.

The heavy scale machines are at least two groups, the output end of each group of heavy scale machines is provided with a rotatable discharging chute, and the discharging end of the rotatable discharging chute is opposite to the left or right melting furnace and finishes feeding.

The utility model relates to a heavy scale trigger that can weigh measurement has following technological effect: in the smelting process of the existing smelting furnace, the feeding amount of the smelting furnace is judged manually according to experience, the error is large, and untimely feeding or excessive feeding is easily caused. The untimely charging leads to the consumption of energy in the heating process of the melting furnace, and the rising and overflowing of the molten steel in the furnace caused by excessive charging easily causes safety accidents. By arranging the weighing sensor on the inclined section of the heavy type scaleboard machine, the feeding quantity can be automatically monitored through the PCL, the feeding speed of the heavy type scaleboard machine can be adjusted in real time, the uniform-speed feeding and calculation accumulated weighing data to the melting furnace are realized, the steel scrap quantity required by each melting furnace when melting furnace water in each cylinder is accurately obtained, and the waste of materials or the consumption of energy in the heating process of the melting furnace due to untimely material feeding in the steel making process are avoided.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a front view of a continuous feed distribution device for a melting furnace.

FIG. 2 is a top view of a continuous feed distribution device for a melting furnace.

Figure 3 is a front view of a rotatable discharge chute.

Fig. 4 is a sectional view at a in fig. 3.

Fig. 5 is a partially enlarged schematic view of fig. 1.

Fig. 6 is a partially enlarged schematic view of fig. 2.

Fig. 7 is a partial schematic view of a medium-heavy scale machine according to the present invention.

In the figure: heavy scale trigger 1, go up guide rail 1.1, intercepting guide rail 1.2, tray 1.3, weighing sensor 1.4, head pulley 1.5, apron chain group 1.6, direction tire 1.7, supporting seat 1.8, main part girder 1.9, hopper 2, rotatable discharge chute 3, chute body 3.1, link 3.2, pivot 3.3, pivot base 3.4, gear motor 3.5, gear 3.6, rack 3.7, connecting rod 3.7.1, material pit 4, material pit main part 4.1, material pit extension 4.2, driving 5, sucking disc 6, smelting furnace 7, skip 8.

Detailed Description

A heavy-duty scaling machine with weighing and metering functions is characterized in that a main body part of the heavy-duty scaling machine 1 adopts a device in the application number of 201711271053.7 named as a steel scrap scaling conveyor, a steel scrap scaling conveying method and an application method.

As shown in fig. 7, unlike the "steel scrap apron conveyor, conveying method, and application of patent application No. 201711271053.7," the upper rail 1.1 on the main girder of the original inclined section is broken to form a cut-out guide rail 1.2, the cut-out guide rail 1.2 is mounted on a tray 1.3, the lower part of the tray 1.3 is connected with a load cell 1.4, the load cell 1.4 falls on the main girder 1.9 of the heavy type apron mill 1 through a support seat 1.8, and the newly mounted cut-out guide rail 1.2 is flush with the upper surface of the original upper guide rail 1.1. In the process of conveying materials, a driving device of the heavy scale plate machine is electrified to rotate to drive the scales on the chain to rotate together, the chain runs along the upper track, the scales support the materials, and when the materials move to the position above the upper track with the weighing device along with the movement of the scale plate group of the chain, the weighing sensor generates pressure to weigh the materials. The weighing sensor is connected with the PLC, weighing data of the weighing sensor are fed back to the PLC for recording, when the weight of materials on the apron chain group changes, the data fed back to the PLC by the weighing sensor 1.4 changes, the influence of the weight change is calculated through a program of the PLC and fed back to a frequency converter of the heavy apron machine 1, the rotating speed of a driving device on the heavy apron machine is adjusted, the purpose of adjusting the instantaneous feeding amount is achieved, and therefore the purposes of accumulated weighing and continuous and stable feeding are achieved.

As shown in fig. 1-2, the apparatus is used in a continuous feed distribution apparatus for a melting furnace. Each group of heavy plate scalers 1 in the continuous feeding and distributing device of the melting furnace are obliquely arranged, a hopper 2 is arranged at the upper part of the horizontal section of the feeding end of each group of heavy plate scalers 1, a rotatable discharging chute 3 is arranged below the discharging end of each group of heavy plate scalers 1, and the rotatable discharging chute 3 feeds materials to the melting furnace 7 on the left side or the right side respectively in the left-right rotating process. A material pit 4 is dug on one side of all heavy scale plate machines 1, the material pit 4 comprises a material pit main body 4.1 and a material pit extension section 4.2, wherein the material pit main body 4.1 is located below the hopper 2, the material pit extension section 4.2 is located below an inclined section of the heavy scale plate machines 1, and the bottom of the material pit extension section is downwards inclined towards one end of the material pit main body 4.1. And a travelling crane 5 is arranged above the material pit 4, and the travelling crane 5 drives a sucking disc 6 to grab and feed the scrap steel.

As shown in fig. 3-4, the rotatable discharge chute 3 comprises a chute body 3.1, the chute body 3.1 being arranged obliquely. The connecting frame 3.2 is installed at the lower end of the chute body 3.1, the upper end and the lower end of the connecting frame 3.2 are installed on the vertical rotating shaft 3.3, the bottom end of the rotating shaft 3.3 is rotatably installed on the rotating shaft base 3.4 through a bearing, and the rotating shaft base 3.4 is installed on a support above the melting furnace 7. A gear motor 3.5 is arranged at a proper position on the connecting frame 3.2, and the output end of the gear motor 3.5 is connected with a gear 3.6. The gear 3.6 is meshed with the rack 3.7, and the rack 3.7 is of an arc-shaped structure and is connected with the rotating shaft base 3.4 at the left end and the right end.

Proximity switches are arranged near the two ends and the middle position of the rack and used for detecting the left limit position and the right limit position of the gear 3.6 and controlling the reversing of the speed reducing motor 3.5 through a controller, so that the chute body 3.1 rotates left and right and then is obliquely discharged.

The feeding end of the chute body 3.1 is positioned below the output end of the heavy scale plate machine 1, and the melting furnace 7 is arranged on the left and right below the discharging end of the chute body 3.1. The chute body 3.1 receives scrap steel from the heavy-duty scaleboard machine 1 and delivers it to the right and left melters 7.

A continuous feeding and distributing device of a melting furnace capable of weighing and metering comprises the following steps:

step 1), firstly, obliquely arranging a heavy plate descaling machine 1 according to the position of a melting furnace 7, and horizontally arranging the other end pointing to the ground, wherein the horizontal section of the heavy plate descaling machine 1 is provided with a huge hopper 2.

Step 2) and secondly, 4 meters of material pits 4 are arranged around the hopper 2, and under the condition that the scrap steel in the material pits 4 is insufficient, the skip car 8 can complete the rapid unloading process around the material pits 4 at any time to form a stockpiling place, so that the work of the travelling crane 5 is reduced, and the unloading of the incoming scrap steel is effectively improved.

Step 3), then, arranging a rotatable discharge chute 3 between the melting furnace 7 and the heavy-duty scaleboard machine 1, the rotatable discharge chute 3 having a 0 ° station, a 45 ° station and a-45 ° station. The 45-degree station and the-45-degree station respectively point to one melting furnace 7, so that the directional conveying working condition of one heavy-duty plate mill 1 to one melting furnace 7 can be changed, the heavy-duty plate mill 1 can convey waste steel to a plurality of melting furnaces 7, the multi-furnace alternate feeding mode greatly reduces the equipment cost, and meanwhile, the productivity is improved.

And 4) because the heavy type scaleboard machine 1 has the advantage of load starting, before the heavy type scaleboard machine 1 is started, a worker can drive the travelling crane 5 to operate or control the suction disc 6 to transfer the scrap steel in the material pit 4 into the hopper 2 of the horizontal section of the heavy type scaleboard machine 1. Before the melting furnace 7 is not started, the heavy plate descaling machine 1 is started, the inclined section of the heavy plate descaling machine 1 is filled with the scrap steel, then the heavy plate descaling machine is stopped, the hopper 2 at the horizontal section can continue to feed, and the melting furnace 7 is ensured to have enough scrap steel at the initial stage of scrap steel smelting.

And step 5), after the melting furnace 7 is started, only one traveling crane 5 is needed to operate the suction disc 6 to transfer the scrap steel in the material pit 4 to the hopper 2, so that the heavy-duty scaling machine 1 can continuously convey the scrap steel to the melting furnace.

And 6) when the single-side melting furnace needs to be charged during operation, starting a charging mode of the single melting furnace by the PLC (namely, the motor of the heavy-duty scaling machine 1 works in a low-frequency mode). The rotatable discharging chute 3 is remotely started on the PCL controller, and the rotatable discharging chute 3 rotates to the position above the furnace mouth of the melting furnace 1 on the side from the 0-degree station. And starting the heavy plate descaling machine 1, wherein the heavy plate descaling machine 1 continuously conveys materials in a low-frequency mode. The weighing data of the weighing sensor 1.4 is fed back to the PLC for recording, when the weight of the material on the apron chain group changes, the data fed back to the PLC by the weighing sensor changes, the influence of the weight change is calculated through a program of the PLC and fed back to the frequency converter, and the rotating speed of a driving device on the heavy apron machine is adjusted, so that the heavy apron machine 1 can uniformly convey the material to the melting furnace. Meanwhile, the weighing data are accumulated by a PLC program, when the accumulated numerical value reaches the weight of the smelting furnace water of the smelting furnace, the numerical value is fed back to the start electric cabinet of the heavy type plate descaling machine 1, the driving device of the heavy type plate descaling machine 1 is stopped, and the feeding process is stopped. And then the data is fed back to a start-up electric control box of the rotatable discharging chute 3, so that the rotatable discharging chute 3 rotates to a 0-degree station.

When the double-side melting furnace needs to be charged during operation, the PCL controller starts a charging mode of the double melting furnaces (namely, the motor of the heavy-duty scaleboard machine 1 works in a high-frequency mode). The rotatable discharging chute 3 is remotely started on the PCL controller, and the rotatable discharging chute 3 rotates to the position above the furnace mouth of the melting furnace at one side from the 0-degree station. And starting the heavy plate descaling machine 1, and continuously conveying the materials at a high speed by the heavy plate descaling machine 1. And the weighing sensor feeds data back to the PCL controller, and the feeding speed of the heavy-duty scaleboard machine is adjusted in real time to feed materials to the melting furnace at a constant speed. After the unit time a, the PLC controls the heavy scale machine 1 to stop, the PLC controls the rotatable discharging chute 3 to start again and travel reversely, the heavy scale machine stays at a station required by the melting furnace at the other side, and then the heavy scale machine is started to convey materials to the melting furnace at the other side at the same speed; meanwhile, the PCL monitors and accumulates data fed back by the weighing sensor, adjusts the speed of the heavy scale plate machine 1 in real time to enable the heavy scale plate machine to feed to the melting furnace on the other side at a constant speed, and stops the heavy scale plate machine 1 after unit time a and reverses the rotatable discharging chute 3.

The heavy-duty scaleboard machine 1 then feeds the two melting furnaces one time in turn, each time b, c, d, respectively, with each reversal of the rotatable discharge chute 3. The unit time a, b, c and d (not limited to four groups, but also can be a plurality of groups) is regularly decreased, so that the materials in the melting furnace are sufficient and do not exceed the material layer height of the melting furnace.

The weighing sensors are matched with PCLs to adjust the speed of the heavy type scaleboard machine in real time in unit time a, b, c and d (not limited to four groups, but also multiple groups) each time, so that the feeding of the heavy type scaleboard machine to the melting furnace is ensured to be constant, and the weights of the two melting furnaces in unit time a, b, c and d (not limited to four groups, but also multiple groups) each time are weighed in an accumulated manner. When the total value of PCL accumulation reaches the weight of the furnace water of the two melting furnaces, the weight is fed back to the start electric cabinet of the heavy type scaly plate machine 1, the driving device of the heavy type scaly plate machine 1 is stopped, and the feeding process is stopped. And then the operation is fed back to the rotatable discharging chute 3 to start the electric cabinet, so that the rotatable discharging chute 3 rotates to a 0-degree station.

Claims

1. A heavy scale trigger that can weigh and measure which characterized in that: the upper rail (1.1) on the inclined section of the heavy scaling machine (1) is disconnected at a proper position and is provided with a weighing mechanism, the weighing mechanism comprises a weighing sensor (1.4), the lower part of the weighing sensor (1.4) is arranged on a supporting seat (1.8), the supporting seat (1.8) is fixed on a main body girder (1.9) of the heavy scaling machine (1), the upper end of the weighing sensor (1.4) is connected with a tray (1.3), an intercepting guide rail (1.2) is arranged at the upper end of the tray (1.3), and the intercepting guide rail (1.2) is located at the disconnection position and is parallel and level with the upper surface of the upper rail (1.1).

2. A weighable heavy-duty scaling machine as claimed in claim 1, further comprising: the heavy-duty scaling machine (1) is at least two groups, the output end of each group of heavy-duty scaling machine (1) is provided with a rotatable discharging chute (3), and the discharging end of the rotatable discharging chute (3) is opposite to the melting furnace (7) on the left side or the right side and finishes feeding.