Hydraulic energy-saving system of steel-making electric furnace

Abstract

The hydraulic energy-saving system comprises a heat exchange box, a coil pipe, a heat exchange pipe, a water inlet pipe, a water outlet pipe, a circulating pump and an energy storage box. According to the hydraulic energy-saving system of the steel-making electric furnace, a heat exchange module is fixedly installed on the side wall of a hydraulic oil tank and comprises a heat exchange box, a coil pipe is fixedly connected into the heat exchange box, the two ends of the coil pipe penetrate out of the heat exchange box, heat conduction fins are evenly and fixedly connected to the coil pipe, and the two ends of the coil pipe are connected with a distribution valve module and a filtering assembly through pipelines correspondingly; a water inlet pipe and a water outlet pipe are symmetrically and fixedly connected to the side wall of the heat exchange box, a heat exchange pipe is fixedly connected to the water inlet pipe and the water outlet pipe jointly, a circulating pump is installed on the heat exchange pipe, the heat exchange pipe is inserted into the energy storage box, and heat-conducting media in the heat exchange pipe, the water inlet pipe, the water outlet pipe and the heat exchange box are circulated through the circulating pump. Therefore, heat energy emitted by the coil pipe through the heat conduction fins is absorbed and conveyed into the energy storage box for heat exchange and energy storage, and the energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic system, concretely is steel -making electric furnace hydraulic energy -conserving system. BACKGROUND

[0002] Electric furnace steelmaking mainly utilizes arc heat, and in the arc action area, the temperature is as high as 4000 DEG C. The smelting process is generally divided into melting period, oxidation period and reduction period, and in the furnace, not only can oxidation atmosphere be caused, but also reduction atmosphere can be caused, therefore the efficiency of dephosphorization and desulfurization is very high.

[0003] In the use process of steel -making electric furnace, driving is carried through hydraulic system, to realize the operation such as pouring of molten steel, the existing hydraulic system will set up air cooling in the position of hydraulic pump station to carry out heat dissipation in the use process, to avoid the problem of high hydraulic oil temperature affecting performance, but direct heat dissipation can cause heat energy waste, therefore a steel -making electric furnace hydraulic energy -conserving system is proposed to optimize the prior art. UTILITY MODEL CONTENTS

[0004] The utility model is provided with the steel -making electric furnace hydraulic energy -conserving system to solve the problems in the above -mentioned background art.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Steel -making electric furnace hydraulic energy -conserving system, including hydraulic oil tank, the outside of hydraulic oil tank is equipped with the hydraulic cylinder for the driving of steel -making electric furnace, and the hydraulic oil tank is fixedly installed on the fixed plate, and one side of the fixed plate is fixedly installed with the hydraulic oil pump, and the top surface of the hydraulic oil tank is fixedly installed with the distribution valve module and filter assembly, and the lateral wall of the hydraulic oil tank is fixedly installed with the heat exchange module, and the hydraulic cylinder is connected with the output port of distribution valve module through pipeline, and the oil outlet of the hydraulic oil tank is connected with the hydraulic oil pump through pipeline, and the output end of the hydraulic oil pump is connected with the oil inlet port of distribution valve module, and the oil outlet port on distribution valve module is connected with the oil inlet of heat exchange module through pipeline, and the oil outlet of heat exchange module is connected with filter assembly through pipeline, and the oil outlet port of filter assembly is connected with the oil return port of hydraulic oil tank, and the heat exchange module includes heat exchange tank, and the heat exchange tank is fixedly connected with coil pipe, and the both ends of coil pipe all go out heat exchange tank, and the coil pipe is uniformly fixedly connected with heat conduction fin, and the both ends of coil pipe are connected with distribution valve module and filter assembly through pipeline respectively, and the lateral wall of heat exchange tank is fixedly connected with water inlet pipe and water outlet pipe symmetrically, and the water inlet pipe and water outlet pipe are fixedly connected with heat exchange pipe, and the heat exchange pipe is installed with circulating pump, and the heat exchange pipe is inserted into energy storage tank.

[0007] As a further scheme of the utility model: the filter assembly includes first three-way pipe and second three-way pipe, and the first three-way pipe is connected with heat exchange module through pipeline, and the second three-way pipe is connected with the oil return port of hydraulic oil tank through pipeline.

[0008] As a further scheme of the utility model: the both ends of the first three-way pipe and the second three-way pipe are fixedly connected with filter pipes and filters respectively, and the both ends of the first three-way pipe and the second three-way pipe connected with the filter pipes and the filters are provided with stop valves.

[0009] As a further scheme of the utility model: the filter pipes are uniformly fixedly connected with first filter screens.

[0010] As a further scheme of the utility model: the filter comprises an intermediate pipe and end connecting heads, the end connecting heads are symmetrically fixedly installed at the both ends of the intermediate pipe through bolts, and the end connecting heads are fixedly installed with the first three-way pipe and the second three-way pipe respectively.

[0011] As a further scheme of the utility model: the inner side of the intermediate pipe is provided with a plurality of second filter screens at equal distances, the second filter screens are movably embedded in a combined cylinder, the inner side of the combined cylinder is provided with grooves for embedding the second filter screens at equal distances, the combined cylinder is composed of two identical half-cylinders, the grooves are arranged on the two half-cylinders respectively, the combined cylinder is movably arranged in the intermediate pipe and is adapted to the intermediate pipe, the inner side of the end connecting head is fixedly connected with a clamping ring, and the clamping ring abuts against the both ends of the combined cylinder.

[0012] As a further scheme of the utility model: the hydraulic oil pump and the circulating pump are externally connected with power supplies and switches.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1. The circulating pump circulates the heat-conducting medium in the heat exchange pipe, the water inlet pipe, the water outlet pipe and the heat exchange box, thereby absorbing the heat energy emitted by the coil through the heat-conducting fins and conveying the heat energy to the energy storage box for heat exchange and energy storage, so that the energy-saving effect is achieved.

[0015] 2. The stop valves can switch the filter pipes and the filters, so that temporary filtering is realized through the filter pipes when the filter is blocked, and the use of the hydraulic system can be maintained when the filter is disassembled and maintained.

[0016] 3. The end connecting head and the intermediate pipe are designed in an assembled manner, so that the intermediate pipe can be removed, the second filter screen cylinder groove is assembled in the combined cylinder, and the combined cylinder itself can be disassembled, so that the second filter screen can be conveniently removed for cleaning when the filter is maintained. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic view of a steelmaking electric furnace hydraulic energy-saving system.

[0018] Fig. 2The heat exchange module in the hydraulic energy-saving system of the steelmaking electric furnace.

[0019] Fig. 3 The filter assembly in the hydraulic energy-saving system of the steelmaking electric furnace

[0020] Fig. 4 The filter tube in the hydraulic energy-saving system of the steelmaking electric furnace

[0021] Fig. 5 The filter in the hydraulic energy-saving system of the steelmaking electric furnace

[0022] Fig. 6 The pipeline connection of the hydraulic energy-saving system of the steelmaking electric furnace

[0023] In the figure: 1, hydraulic oil tank; 2, hydraulic cylinder; 3, fixed plate; 4, hydraulic oil pump; 5, distribution valve module; 6, filter assembly; 7, heat exchange module; 8, heat exchange tank; 9, coil pipe; 10, heat conduction fin; 11, water inlet pipe; 12, water outlet pipe; 13, heat exchange pipe; 14, circulating pump; 15, first three-way pipe; 16, second three-way pipe; 17, filter pipe; 18, filter; 19, stop valve; 20, first filter screen; 21, intermediate pipe; 22, end connector; 23, second filter screen; 24, combined cylinder; 25, groove; 26, clamping ring; 27, energy storage tank. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Please refer to Figs. 1-6The utility model discloses a steel -making electric furnace hydraulic energy -conserving system, including hydraulic oil tank 1, the outside of hydraulic oil tank 1 is equipped with the hydraulic cylinder 2 for the drive of steel -making electric furnace, hydraulic oil tank 1 fixed mounting is in fixed plate 3, one side fixed mounting of fixed plate 3 has hydraulic oil pump 4, the top surface fixed mounting of hydraulic oil tank 1 has distribution valve module 5 and filter assembly 6, the lateral wall fixed mounting of hydraulic oil tank 1 has heat exchange module 7, the output port of hydraulic cylinder 2 is connected with distribution valve module 5 through pipeline, the oil outlet of hydraulic oil tank 1 is connected with hydraulic oil pump 4 through pipeline, the output of hydraulic oil pump 4 is connected with the oil inlet port of distribution valve module 5, the oil outlet port on distribution valve module 5 is connected with the oil inlet of heat exchange module 7 through pipeline, the oil outlet of heat exchange module 7 is connected with filter assembly 6 through pipeline, the oil outlet port of filter assembly 6 is connected with the oil return port of hydraulic oil tank 1, heat exchange module 7 includes heat exchange tank 8, the heat exchange tank 8 is fixedly connected with coil pipe 9 in, both ends of coil pipe 9 all wear out heat exchange tank 8, coil pipe 9 all uniformly fixedly connected with heat conduction fin 10, both ends of coil pipe 9 are connected with distribution valve module 5 and filter assembly 6 through pipeline respectively, the lateral wall symmetrical fixed connection of heat exchange tank 8 inlet pipe 11 and outlet pipe 12, inlet pipe 11 and outlet pipe 12 are fixedly connected with heat exchange pipe 13, and heat exchange pipe 13 is installed with circulating pump 14, and heat exchange pipe 13 inserts into energy storage tank 27.

[0026] Through circulating pump 14 circulates the heat conduction medium in heat exchange pipe 13, inlet pipe 11, outlet pipe 12 and heat exchange tank 8, so that the heat energy radiated by coil pipe 9 through heat conduction fin 10 is absorbed and transported to energy storage tank 27 for heat exchange and energy storage, thereby achieving energy saving effect.

[0027] Filter assembly 6 includes first three-way pipe 15 and second three-way pipe 16, first three-way pipe 15 is connected with heat exchange module 7 through pipeline, and second three-way pipe 16 is connected with the oil return port of hydraulic oil tank 1 through pipeline. First three-way pipe 15 and second three-way pipe 16 are fixedly connected with filter pipe 17 and filter 18 between the corresponding two end ports, and the two ends of first three-way pipe 15 and second three-way pipe 16 connected with filter pipe 17 and filter 18 are all installed with stop valve 19. First filter screen 20 is uniformly fixedly connected in filter pipe 17. Filter 18 includes middle pipe 21 and end connecting head 22, end connecting head 22 is fixedly installed on both ends of middle pipe 21 through bolts, and end connecting head 22 is fixedly installed with first three-way pipe 15 and second three-way pipe 16 respectively. Multiple second filter screens 23 are equidistantly arranged on the inner side of middle pipe 21.

[0028] Through stop valve 19, filter pipe 17 and filter 18 can be switched, so that temporary filtering is carried out through filter pipe 17 when the inside of filter 18 is blocked, and the use of hydraulic system can be maintained when filter 18 is disassembled and repaired.

[0029] The second filter screen 23 is movably embedded in the combined cylinder 24, the inner side of the combined cylinder 24 is equidistantly provided with a groove 25 for embedding the second filter screen 23, the combined cylinder 24 is composed of two identical half-cylinders, the groove 25 is provided on each of the two half-cylinders, the combined cylinder 24 is movably arranged in the middle cylinder 21 and is adapted to the middle cylinder 21, the inner side of the end connecting head 22 is fixedly connected with a clamping ring 26, and the clamping ring 26 abuts against the two ends of the combined cylinder 24.

[0030] The end connecting head 22 and the middle cylinder 21 are designed in a fitting mode, so that the middle cylinder 21 can be removed, the second filter screen 23 is fittedly installed in the combined cylinder 24, and the combined cylinder 24 can be disassembled, so that the second filter screen 23 can be conveniently removed alone when the filter 18 is maintained, thereby facilitating cleaning.

[0031] The hydraulic oil pump 4 and the circulating pump 14 are externally connected with a power supply and a switch.

[0032] The working principle of the utility model is as follows:

[0033] In use, the hydraulic oil tank 1, the hydraulic cylinder 2, the hydraulic oil pump 4, the distribution valve module 4, the filter assembly 6 and the heat exchange module 7 are connected through pipelines, so as to drive the hydraulic cylinder 2, the heat exchange tank 8 is used for heat exchange in the driving process, the circulating pump 14 is used for circulating the heat-conducting medium in the heat exchange pipe 13, the water inlet pipe 11, the water outlet pipe 12 and the heat exchange tank 8, so as to absorb the heat energy emitted by the coil pipe 9 through the heat-conducting fins 10 and transmit the heat energy to the energy storage tank 27 for heat exchange and energy storage, thereby achieving the energy-saving effect.

[0034] The filter assembly 6 is used for filtering hydraulic oil in the working process, the stop valve 19 is used for switching the filter pipe 17 and the filter 18, so as to temporarily filter through the filter pipe 17 when the filter 18 is blocked, thereby maintaining the use of the hydraulic system when the filter 18 is disassembled and maintained, the end connecting head 22 and the middle cylinder 21 are designed in a fitting mode, so that the middle cylinder 21 can be removed, the second filter screen 23 is fittedly installed in the combined cylinder 24, and the combined cylinder 24 can be disassembled, so that the second filter screen 23 can be conveniently removed alone when the filter 18 is maintained, thereby facilitating cleaning.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic energy saving system for a steelmaking electric furnace, comprising a hydraulic oil tank (1), characterized in that: The outer side of the hydraulic oil tank (1) is provided with a hydraulic cylinder (2) for driving a steelmaking electric furnace, the hydraulic oil tank (1) is fixedly installed on a fixed plate (3), one side of the fixed plate (3) is fixedly installed with a hydraulic oil pump (4), the top surface of the hydraulic oil tank (1) is fixedly installed with a distribution valve module (5) and a filter assembly (6), and the side wall of the hydraulic oil tank (1) is fixedly installed with a heat exchange module (7); The heat exchange module (7) comprises a heat exchange tank (8), the heat exchange tank (8) is fixedly connected with a coil pipe (9) inside, the two ends of the coil pipe (9) penetrate out of the heat exchange tank (8), the coil pipe (9) is uniformly fixedly connected with heat conduction fins (10), the two ends of the coil pipe (9) are connected with the distribution valve module (5) and the filter assembly (6) through pipelines respectively, the side wall of the heat exchange tank (8) is fixedly connected with a water inlet pipe (11) and a water outlet pipe (12) symmetrically, the water inlet pipe (11) and the water outlet pipe (12) are fixedly connected with a heat exchange pipe (13) together, the heat exchange pipe (13) is installed with a circulating pump (14), and the heat exchange pipe (13) is inserted into an energy storage tank (27).

2. The hydraulic energy saving system for steelmaking electric furnace as claimed in claim 1, wherein: The filter assembly (6) comprises a first three-way pipe (15) and a second three-way pipe (16), the first three-way pipe (15) is connected with the heat exchange module (7) through a pipeline, and the second three-way pipe (16) is connected with an oil return port of the hydraulic oil tank (1) through a pipeline.

3. The hydraulic energy saving system of the steelmaking electric furnace according to claim 2, characterized in that: Corresponding two end ports of the first three-way pipe (15) and the second three-way pipe (16) are fixedly connected with a filter pipe (17) and a filter (18) respectively, and both ends of the first three-way pipe (15) and the second three-way pipe (16) connected with the filter pipe (17) and the filter (18) are installed with a stop valve (19).

4. The hydraulic energy saving system of the steelmaking electric furnace according to claim 3, characterized in that: The filter pipe (17) is uniformly fixedly connected with a first filter screen (20) inside.

5. The hydraulic energy saving system of the steelmaking electric furnace as claimed in claim 3, wherein: The filter (18) comprises an intermediate pipe (21) and an end connecting head (22), the end connecting head (22) is fixedly installed on the two ends of the intermediate pipe (21) through bolts, and the end connecting head (22) is fixedly installed with the first three-way pipe (15) and the second three-way pipe (16) respectively.

6. The hydraulic energy saving system of the steelmaking electric furnace according to claim 5, characterized in that: A plurality of second filter screens (23) are equidistantly arranged on the inner side of the intermediate pipe (21), the second filter screens (23) are movably embedded in a combination cylinder (24), a groove (25) for embedding the second filter screens (23) is equidistantly arranged on the inner side of the combination cylinder (24), the combination cylinder (24) is composed of two identical semicircular pipes, the combination cylinder (24) is movably arranged in the intermediate pipe (21) and is matched with the intermediate pipe (21), the inner side of the end connecting head (22) is fixedly connected with a clamping ring (26), and the clamping ring (26) abuts against the two ends of the combination cylinder (24) respectively.

Images