Centralized oil supply and purification device of nodular cast iron pipe hydraulic system

Abstract

The utility model belongs to the technical field of nodular cast iron pipe production, and particularly relates to a nodular cast iron pipe hydraulic system centralized oil supply and purification device which comprises an oil tank, a first hydraulic station, a second hydraulic station, a third hydraulic station and an oil purification system. One end of the oil tank is fixedly communicated with a first filter, the end, away from the first filter, of the oil tank is connected with a first hydraulic pump, the output end of the first hydraulic pump is provided with a pressure adjusting valve block, and the output end of the pressure adjusting valve block is connected with an output oil valve block. A set of independent hydraulic system is designed according to the characteristics of dispersion, small quantity, high position, large environmental dust and the like of auxiliary equipment hydraulic stations of a nodular cast iron pipe raw material molten iron smelting blast furnace, and the hydraulic system can realize the functions of automatic oil supplementation, automatic purification and the like of all the hydraulic stations.

Description

TECHNICAL FIELD

[0001] The utility model relates to nodular cast iron pipe production technical field especially relates to a kind of nodular cast iron pipe hydraulic system centralized oil supply, purification device. BACKGROUND

[0002] Nodular cast iron pipe refers to the pipe material made of No.18 or above cast iron after adding spheroidizing agent and being centrifugally cast by centrifugal nodular cast iron machine, which is also called ball pipe, ductile iron pipe and nodular cast pipe, etc. It is mainly used for the transportation of tap water and is the ideal choice for tap water pipeline. In the nodular cast iron pipe production line, high-quality molten iron supplied by blast furnace smelting is a key link, and the hydraulic system is an important auxiliary equipment for blast furnace smelting.

[0003] However, due to the characteristics of blast furnace smelting auxiliary equipment, the auxiliary equipment hydraulic station is relatively dispersed, the number is small, the position is relatively high in some cases, and the environment is dusty, so timely oil supplement and oil medium purification of the hydraulic station are a big problem. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the problem of blast furnace smelting auxiliary equipment hydraulic station being relatively dispersed, the number being small, the position being relatively high in some cases and the environment being dusty as mentioned in the background art, and provides a kind of nodular cast iron pipe hydraulic system centralized oil supply, purification device.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A kind of nodular cast iron pipe hydraulic system centralized oil supply, purification device, including oil tank, No.1 hydraulic station, No.2 hydraulic station, No.3 hydraulic station and purification oil system, oil tank is fixedly inserted with oil tank liquid level sensor, temperature sensor, liquid level meter, magnetic bar and heater in it, the first filter is fixedly communicated with one end of the oil tank, the first hydraulic pump is connected with the end of the oil tank away from the first filter, the output end of the first hydraulic pump is equipped with pressure regulating valve block, the output end of the pressure regulating valve block is connected with output oil valve block, the output end of the output oil valve block is connected with No.1 hydraulic station, No.2 hydraulic station, No.3 hydraulic station respectively through No.1 hydraulic station oil supply valve block, No.2 hydraulic station oil supply valve block and No.3 hydraulic station oil supply valve block, No.1 hydraulic station, No.2 hydraulic station, No.3 hydraulic station are respectively inserted with No.1 hydraulic station liquid level sensor, No.2 hydraulic station liquid level sensor and No.3 hydraulic station liquid level sensor.

[0007] Preferably, the purification oil system comprises a second hydraulic pump, a pressure regulating valve, a detection unit and a second filter.

[0008] Preferably, the detection unit comprises a cleanliness detection module, a viscosity detection module and a moisture detection module.

[0009] Preferably, a circulating oil valve block is arranged between the first hydraulic pump and the first filter.

[0010] Preferably, a pressure relay is connected to the output oil valve block.

[0011] Preferably, the output end of the output oil valve block is provided with a plurality of hydraulic station connection ports.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The utility model discloses a set of independent hydraulic system is designed according to the characteristics of the auxiliary equipment hydraulic station of the nodular cast iron pipe raw material molten iron smelting blast furnace, namely: relatively dispersed, small in quantity, some positions are relatively high, and the environment is dusty, can realize automatic oil supplement, automatic purification and other functions of all hydraulic stations.

[0014] 2. The utility model discloses that the liquid level sensor is used to realize that the oil supply station automatically supplements the oil of the field hydraulic station. A plurality of liquid level sensors are used to realize that the field hydraulic station is supplied with oil alone or together. The detection unit is installed on the oil way, realizes the automatic detection of oil medium cleanliness, realizes the purification oil requirement of the hydraulic system. The device is installed with liquid level, temperature, pressure, cleanliness, viscosity, moisture sensor, can realize the all-around detection control of the hydraulic system, the device is installed with a plurality of oil supply valve blocks, and can be expanded, thereby realizing the oil supply to the field multiple hydraulic stations, and the oil supply valve block is installed with a check valve, prevents the field hydraulic station from returning oil to the oil supply station. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the principle diagram of the centralized oil supply and purification device of the nodular cast iron pipe hydraulic system that the utility model proposes;

[0016] Figure 2 It is the centralized oil supply control block diagram of the centralized oil supply and purification device of the nodular cast iron pipe hydraulic system that the utility model proposes;

[0017] Figure 3 It is the principle diagram of the purification oil system in the centralized oil supply and purification device of the nodular cast iron pipe hydraulic system that the utility model proposes;

[0018] Figure 4 It is the control block diagram of the purification oil system in the centralized oil supply and purification device of the nodular cast iron pipe hydraulic system that the utility model proposes.

[0019] In the figure: 1 oil tank, 2 first hydraulic pump, 3 pressure regulating valve, 4 output oil valve block, 5 circulating oil valve block, 6 first filter, 7 oil tank liquid level sensor, 8 temperature sensor, 9 liquid level gauge, 10 magnetic bar, 11 heater, 12 No. 1 hydraulic station oil supply valve block, 13 No. 2 hydraulic station oil supply valve block, 14 No. 3 hydraulic station oil supply valve block, 15 pressure relay, 16 purified oil system, 17 No. 1 hydraulic station liquid level sensor, 18 No. 2 hydraulic station liquid level sensor, 19 No. 3 hydraulic station liquid level sensor, 20 No. 1 hydraulic station, 21 No. 2 hydraulic station, 22 No. 3 hydraulic station, 23 second filter, 24 second hydraulic pump, 25 pressure regulating valve, 26 detection unit. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Referring to Figures 1-4 A ductile cast iron pipe hydraulic system centralized oil supply and purification device, comprising an oil tank 1, a No. 1 hydraulic station 20, a No. 2 hydraulic station 21, a No. 3 hydraulic station 22 and a purified oil system 16, the purified oil system 16 comprising a second hydraulic pump 24, a pressure regulating valve 25, a detection unit 26 and a second filter 23, the detection unit 26 comprising a cleanliness detection module, a viscosity detection module and a moisture detection module for detecting the cleanliness, viscosity and moisture in the oil tank 1.

[0022] In this embodiment, the oil tank 1 is fixedly provided with an oil tank liquid level sensor 7, a temperature sensor 8, a liquid level gauge 9, a magnetic bar 10 and a heater 11, one end of the oil tank 1 is fixedly connected with a first filter 6, a circulating oil valve block 5 is arranged between the first hydraulic pump 2 and the first filter 6, and the oil tank 1 is connected with the first hydraulic pump 2 at an end away from the first filter 6, and the output end of the first hydraulic pump 2 is provided with a pressure regulating valve block 3.

[0023] In this embodiment, the output end of the pressure regulating valve block 3 is connected with an output oil valve block 4, the output oil valve block 4 is connected with a pressure relay 15, the output end of the output oil valve block 4 is provided with a plurality of hydraulic station connection ports, and the output end of the output oil valve block 4 is connected with the No. 1 hydraulic station 20, the No. 2 hydraulic station 21 and the No. 3 hydraulic station 22 through a No. 1 hydraulic station oil supply valve block 12, a No. 2 hydraulic station oil supply valve block 13 and a No. 3 hydraulic station oil supply valve block 14 respectively.

[0024] In this embodiment, the No. 1 hydraulic station 20, the No. 2 hydraulic station 21 and the No. 3 hydraulic station 22 are respectively provided with a No. 1 hydraulic station liquid level sensor 17, a No. 2 hydraulic station liquid level sensor 18 and a No. 3 hydraulic station liquid level sensor 19.

[0025] In the embodiment, when the oil level of the first hydraulic station 20, the second hydraulic station 21 and the third hydraulic station 22 is lower than the set value, the first hydraulic pump 2 is started to open the first hydraulic station oil supply valve block 12, the second hydraulic station oil supply valve block 13 and the third hydraulic station oil supply valve block 14 to start oil supplementing, and when the oil level reaches the set oil level, the first hydraulic pump 2 is stopped and the oil supply valve is closed; when the detection unit 26 detects that the cleanliness of the oil tank 1 does not meet the requirement, the first hydraulic pump 2 is started to start oil purification until the requirement is met.

[0026] In the embodiment, according to the characteristics of the auxiliary equipment hydraulic stations of the blast furnace for smelting molten iron of the ductile cast iron pipe raw material, that is, the characteristics of being relatively dispersed, small in quantity, some being relatively high in position, large in dust environment and the like, a set of independent hydraulic system is designed, which can realize automatic oil supplementing and automatic purification of all the hydraulic stations.

[0027] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A centralized oil supply and purification device for a ductile cast iron pipe hydraulic system, comprising an oil tank (1), a first hydraulic station (20), a second hydraulic station (21), a third hydraulic station (22) and a purified oil system (16), characterized in that: The oil tank (1) is fixedly provided with an oil tank liquid level sensor (7), a temperature sensor (8), a liquid level gauge (9), a magnetic bar (10) and a heater (11), one end of the oil tank (1) is fixedly connected with a first filter (6), the end of the oil tank (1) away from the first filter (6) is connected with a first hydraulic pump (2), the output end of the first hydraulic pump (2) is provided with a pressure adjusting valve block (3), the output end of the pressure adjusting valve block (3) is connected with an output oil valve block (4), the output end of the output oil valve block (4) is connected with a first hydraulic station (20), a second hydraulic station (21) and a third hydraulic station (22) through a first hydraulic station oil supply valve block (12), a second hydraulic station oil supply valve block (13) and a third hydraulic station oil supply valve block (14) respectively, and the first hydraulic station (20), the second hydraulic station (21) and the third hydraulic station (22) are respectively provided with a first hydraulic station liquid level sensor (17), a second hydraulic station liquid level sensor (18) and a third hydraulic station liquid level sensor (19).

2. The centralized oil supply and purification device for the hydraulic system of a ductile cast iron pipe according to claim 1, characterized in that: The purification oil system (16) comprises a second hydraulic pump (24), a pressure regulating valve (25), a detection unit (26) and a second filter (23).

3. The centralized oil supply and purification device for a ductile cast iron pipe hydraulic system according to claim 2, characterized in that: The detection unit (26) comprises a cleanliness detection module, a viscosity detection module and a moisture detection module.

4. The centralized oil supply and purifying device for the hydraulic system of a ductile cast iron pipe according to claim 1, characterized in that: The first hydraulic pump (2) and the first filter (6) are provided with a circulating oil valve block (5).

5. The centralized oil supply and purifier for the hydraulic system of a ductile cast iron pipe according to claim 1, characterized in that: The output oil valve block (4) is connected with a pressure relay (15).

6. The centralized oil supply and purifier for the hydraulic system of a ductile cast iron pipe according to claim 1, characterized in that: The output end of the output oil valve block (4) is provided with a plurality of hydraulic station connection ports. The output end of the output oil valve block (4) is provided with a plurality of hydraulic station connection ports.

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