Steel coil preheating system in radiant tube type strip steel heating furnace
Technical Field
The utility model relates to a coil of strip system of preheating in radiant tube belted steel heating furnace belongs to oriented silicon steel production facility field.
Background
The temperature is lower in winter in the north, the process of steel rolling in the rolling process cannot reach the optimal condition due to low temperature, and the plate shape and the rear part process of the steel coil are influenced in the later period. The low-temperature steel strip is brittle and broken, macroscopically has great influence on the rolling continuity of the steel strip, and influences the normal operation of a rolling mill.
For this purpose, the strip steel needs to be preheated in advance. At present, the common preheating mode is carried out by a pit water bath heating or an electric heating single-body bell-type furnace. However, the pit water bath heating has the defects that the equipment occupies a large area, the heat loss is large, 2 steel coils are preheated once, (the mode of up-down or left-right stacking and side-by-side arrangement and the like), the steel coils are continuously opened and closed in a short time, the heat loss is serious in the period, and the steel coils need to be closed and then heated again to the calibrated temperature; the electric heating single-body bell-type furnace has electric energy loss and huge electric energy loss, and is not suitable for the requirements of energy conservation and emission reduction.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a coil of strip system of preheating in radiant tube belted steel heating furnace.
In order to achieve the technical purpose, the utility model provides a technical scheme does:
a steel coil preheating system in a radiant tube type strip steel heating furnace comprises: a trolley in the kiln, a track circulation system and a radiation heating furnace; the track circulation system is movably provided with a plurality of trolleys in the kiln and penetrates through the radiation heating furnace.
The radiation heating furnace includes: the device comprises a support, a natural gas inlet pipe, a natural gas pressure regulator, a fuel gas radiation pipe and a smoke exhaust pipeline; the cross section of the support is of an n-shaped structure, the gas radiation pipes are fixed on two side walls inside the support, the natural gas inlet pipe, the natural gas pressure regulator, the gas radiation pipes and the smoke exhaust pipeline are sequentially communicated, the smoke exhaust pipeline is located on the outer side of the support, and a track circulation system located in the radiant heating furnace is arranged on the lower portion inside the support.
The cart in the kiln comprises: the automobile wheel assembly structure comprises a base, wheel assemblies and a strip steel base, wherein the base is of a square frame structure, the strip steel base is fixed on the upper end face of the base, and the two wheel assemblies are fixed below the base.
The orbital circulation system comprises: the main track, the auxiliary track, the ferry vehicle and the cart in the kiln; the preheating kiln is characterized in that a main rail penetrates through the preheating kiln, two ends of the main rail are respectively fixed with a ferry rail, an auxiliary rail is fixed outside the preheating kiln between the two ferry rails, each ferry rail is provided with a ferry vehicle, the upper end face of each ferry vehicle is provided with a rail butted with the main rail or the auxiliary rail, and the cart in the kiln can run among the main rail, the auxiliary rails and the ferry vehicles.
The ferry vehicle comprises: the ferry vehicle comprises a ferry vehicle base, ferry vehicle wheel assemblies and a motor, wherein the upper end face of the ferry vehicle base is horizontal, a rail is fixed on the upper end face of the ferry vehicle base and is horizontal to a main rail and an auxiliary rail, the two ferry vehicle wheel assemblies are arranged below the ferry vehicle base, the motor is fixed to the lower end of the ferry vehicle base, a large chain wheel is fixed to one ferry vehicle wheel assembly, a small chain wheel is coaxially fixed to an output shaft of the motor, and the large chain wheel and the small chain wheel are in chain transmission.
The main track, the auxiliary track and the track are double-track tracks and are consistent in width.
The wheel assembly includes: a middle shaft, a wheel and a bearing seat; bearing blocks are fixed at two ends of the middle shaft, wheels are coaxially fixed on output shafts of the bearing blocks, the width of two wheels of the wheel assembly is consistent with that of the double-track, the wheel assembly can roll on the main track, the auxiliary track or the track, two connecting lugs are arranged at the upper part of the bearing blocks, through holes are formed in the connecting lugs, and the connecting lugs are used for being fixed with the base.
The bearing housing includes: the bearing comprises a shell and a bearing, wherein the shell is fixedly connected with the end head of the middle shaft, the inner wall of the shell is fixedly connected with the outer ring of the bearing, the inner ring of the bearing is fixedly provided with an output shaft, the output shaft is positioned on the outer side of the shell, and the output shaft can rotate relative to the shell.
The strip steel base comprises: the bottom plate is a square plate, the bottom plate is fixedly connected with the base through a bolt, the supporting base is fixed on the bottom plate, the supporting base is a straight plate with two inclined sides, a groove is formed between the two straight plates, the straight plates are fixed with the bottom plate, and the oriented silicon steel strip steel is placed in the groove.
The base is provided with a propulsion clamping groove, and the base above each wheel is fixed with one propulsion clamping groove.
The pushing clamping groove comprises a channel steel and a plugging sheet fixed in the channel steel.
The ferry track is lower than the main track or the auxiliary track, and one end of the ferry track is provided with a step extending to the ground.
The utility model discloses still need the cooperation of hydraulic pressure advancing device during operation, hydraulic pressure advancing device includes: hydraulic telescoping rod, pushing ram, hydraulic telescoping rod horizontal fixation, be fixed with two pushing rams on hydraulic telescoping rod's the piston rod, the joint that two pushing rams can the one-to-one is in the propulsion draw-in groove of base one end.
Compared with the prior art, the utility model following beneficial effect has:
firstly, the utility model discloses radiant heating furnace adopts the radiant heating mode, and energy utilization efficiency is high, and it is less to dispel the heat outward, and heating efficiency is higher.
Second, the utility model discloses track circulation system cooperates the interior dolly of kiln, and sustainable preheating a plurality of belted steel has the advantage of assembly line processing, the operation of continuation.
Thirdly, the utility model discloses a dolly in the kiln can be according to production requirement at main track, vice track and ferry track reciprocating motion, the quick consignment belted steel operation of being convenient for.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of the structure of the cart in the kiln.
Fig. 3 is a bottom view of the cart in the kiln.
Fig. 4 is a schematic view of the three-dimensional structure of the cart in the kiln.
Fig. 5 is a schematic structural view of the track circulation system of the present invention.
FIG. 6 is a schematic view of the structure of the radiant heating furnace of the present invention.
Fig. 7 is a schematic view of the three-dimensional structure of the radiant heating furnace of the present invention.
Fig. 8 is a schematic view of the side mechanism of the radiant heating furnace of the present invention.
In the figure: the device comprises a cart in a kiln, a track circulating system, a radiation heating furnace, a base 11, a wheel assembly 12, a strip steel base 13, a bottom plate 131, a supporting seat 132, a groove 133, a main track 21, an auxiliary track 22, a ferry track 23, a ferry vehicle 24, a support 31, a natural gas inlet pipe 32, a natural gas pressure regulator 33, a gas radiation pipe 34 and a smoke exhaust pipeline 35.
Detailed Description
For a further understanding of the present invention, reference will now be made in detail to the following examples and embodiments, taken in conjunction with the accompanying drawings:
as shown in fig. 1 to 8: steel coil preheating system in radiant tube belted steel heating furnace, include: a trolley 1 in the kiln, a track circulating system 2 and a radiation heating furnace 3; the track circulation system 2 is movably provided with a plurality of trolleys 1 in the kiln, and the track circulation system 2 penetrates through the radiation heating furnace 3.
The radiation heating furnace 3 includes: the device comprises a support 31, a natural gas inlet pipe 32, a natural gas pressure regulator 33, a gas radiation pipe 34 and a smoke exhaust pipeline 35; the cross-section of the support 31 is of an n-shaped structure, the gas radiation pipes 34 are fixed on two side walls inside the support 31, the natural gas inlet pipe 32, the natural gas pressure regulator 33, the gas radiation pipes 34 and the smoke exhaust pipe 35 are sequentially communicated, the smoke exhaust pipe 35 is located on the outer side of the support 31, and the track circulation system 2 located in the radiation heating furnace 3 is arranged on the lower portion inside the support 31.
The cart 1 in the kiln includes: the automobile wheel assembly comprises a base 11, wheel assemblies 12 and a strip steel base 13, wherein the base 11 is of a square frame structure, the strip steel base 13 is fixed on the upper end face of the base 11, and the two wheel assemblies 12 are fixed below the base 11.
The orbital circulation system 2 includes: the main track 21, the auxiliary track 22, the ferry track 23, the ferry vehicle 24 and the cart 1 in the kiln; a main rail 21 penetrates through the preheating kiln, two ends of the main rail 21 are respectively fixed with a ferry rail 23, an auxiliary rail 22 is fixed outside the preheating kiln between the two ferry rails 23, each ferry rail 23 is provided with a ferry vehicle 24, the upper end face of each ferry vehicle 24 is provided with a rail butted with the main rail 21 or the auxiliary rail 22, and the cart 1 in the kiln can run among the main rail 21, the auxiliary rails 22 and the ferry vehicles 24.
The ferry vehicle 24 includes: the ferry vehicle comprises a ferry vehicle base, ferry vehicle wheel assemblies and a motor, wherein the upper end face of the ferry vehicle base is horizontal, a rail is fixed on the upper end face of the ferry vehicle base and is horizontal to a main rail 21 and an auxiliary rail 22, the two ferry vehicle wheel assemblies are arranged below the ferry vehicle base, the motor is fixed to the lower end of the ferry vehicle base, a large chain wheel is fixed to one of the ferry vehicle wheel assemblies, a small chain wheel is coaxially fixed to an output shaft of the motor, and the large chain wheel and the small chain wheel are in chain transmission.
The main track 21, the auxiliary track 22 and the tracks are all double-track tracks and have the same width.
The wheel assembly 12 includes: a middle shaft 121, wheels 122 and bearing seats 123; bearing blocks 123 are fixed at two ends of the middle shaft 121, wheels 122 are coaxially fixed on output shafts of the bearing blocks 123, the two wheels 122 of the wheel assembly 12 are consistent with the width of the double-track, the wheel assembly 12 can roll on the main track 21, the auxiliary track 22 or the track, two connecting lugs are arranged at the upper part of the bearing blocks 123, through holes are formed in the connecting lugs, and the connecting lugs are used for being fixed with the base 11.
The bearing housing 123 includes: the middle shaft 121 is fixedly connected with the end of the middle shaft, the inner wall of the shell is fixedly connected with the outer ring of the bearing, the inner ring of the bearing is fixedly provided with an output shaft, the output shaft is positioned on the outer side of the shell, and the output shaft can rotate relative to the shell.
The strip steel base 13 includes: bottom plate 131 and supporting seat 132, bottom plate 131 is square board, bottom plate 131 passes through bolt and base 11 fixed connection, be fixed with supporting seat 132 on the bottom plate 131, supporting seat 132 is the straight board that two slopes set up, and forms recess 133 between two straight boards, straight board is fixed with bottom plate 131, place orientation silicon steel belted steel in the recess 133.
The base 11 is provided with a pushing clamping groove 111, and the base 11 above each wheel 122 is fixed with one pushing clamping groove 111.
The pushing clamping groove 111 comprises a channel steel and a plugging sheet fixed in the channel steel.
The ferry track 23 is lower than the primary track 21 or the secondary track 22, and one end of the ferry track 23 is provided with a step extending to the ground.
The utility model discloses still need the cooperation of hydraulic pressure advancing device during operation, hydraulic pressure advancing device includes: hydraulic telescoping rod, push rod, hydraulic telescoping rod horizontal fixation, be fixed with two push rods on hydraulic telescoping rod's the piston rod, but the joint that two push rods one-to-one can be in the propulsion draw-in groove 111 of 11 one ends of base.
The utility model discloses the concrete implementation process as follows:
the trolley 1 in the kiln is parked on the auxiliary rail 22, the strip steel is placed in the groove 133, the trolley 1 in the kiln is pushed to the rail of the ferry vehicle 24 through manpower or machinery, the ferry vehicle 24 runs to transfer the trolley 1 in the kiln to the end of the main rail 21, and the hydraulic pushing device slowly pushes the trolley 1 in the kiln into the radiation heating furnace 3 for radiation preheating.
A plurality of trolleys 1 in the kiln are parked in the main track 21, and when one trolley 1 in the kiln is pushed into the radiation heating furnace 3 by the hydraulic pushing device, one trolley 1 in the kiln (the strip steel which is preheated successfully) is extruded out from the other end of the radiation heating furnace 3.
The above embodiments are merely illustrative of the principles of the present invention and its effects, and do not limit the present invention. It will be apparent to those skilled in the art that modifications and improvements can be made to the above-described embodiments without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications or changes be made by those skilled in the art without departing from the spirit and technical spirit of the present invention, and be covered by the claims of the present invention.