Circulating water treatment system for submerged arc furnace

Abstract

The utility model discloses a submerged arc furnace circulating water treatment system which comprises a raw water tank used for storing submerged arc furnace circulating water and a reverse osmosis assembly connected through a pipeline, and a filtering assembly used for filtering impurities in the circulating water is arranged between the raw water tank and the reverse osmosis assembly. The filter assembly comprises a water storage tank and an end cover covering the water storage tank, a filter screen is arranged in the water storage tank, a plurality of detachable filter bags are arranged in the filter screen, a stirring blade is arranged in the middle of the filter screen, and a rotating shaft in the middle of the stirring blade extends out of the end cover and is in synchronous driving connection with a driving motor fixed to the upper portion of the rotating shaft. According to the utility model, the filter assembly is additionally arranged, the detachable filter bag and the stirring blade are arranged in the middle of the filter screen of the filter assembly, raw water is stirred in the filter screen, and impurities are intercepted in the filter bag, so that circulating water is filtered more efficiently and finely, and the filter screen is prevented from being directly blocked by the impurities.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, concretely relates to a mineral furnace circulating water treatment system. BACKGROUND

[0002] In the operation process of the mineral furnace, the quality of the circulating water is very important for the stable operation of the system and the protection of the equipment.

[0003] In the past, the treatment method of the circulating water of the mineral furnace is simple, only through simple precipitation or using filter plate to remove impurities in the water.

[0004] However, these ways are not only inefficient, but also have poor filtering effect, and the filter holes on the filter plate are often blocked, which leads to slow filtering effect, short service life, and the need to clean the filter plate frequently. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a mineral furnace circulating water treatment system.

[0006] The utility model is realized through the following technical schemes:

[0007] A mineral furnace circulating water treatment system, comprising a raw water tank for storing circulating water of a mineral furnace and a reverse osmosis assembly connected by a pipeline, a filter assembly for filtering impurities in the circulating water is arranged between the raw water tank and the reverse osmosis assembly, the filter assembly comprises a water storage tank and an end cover covering the upper part of the water storage tank, a filter screen is arranged in the water storage tank, a plurality of detachable filter bags are arranged inside the filter screen, stirring blades are arranged in the middle of the filter screen, and the rotating shaft of the stirring blades in the middle extends to the outside of the end cover and is synchronously driven and connected with a driving motor fixed on the upper part thereof.

[0008] Further, the opening direction of the filter bag is opposite to the rotating direction of the stirring blades.

[0009] Further, a sliding rail is arranged on the inner side of the filter screen, and a sliding groove matched with the sliding rail is arranged on one side of the filter screen.

[0010] Further, the filter screen is connected and fixed with the side wall of the water storage tank through a support.

[0011] Further, a water outlet is arranged at the lower part of the water storage tank and is communicated with the water inlet of the reverse osmosis assembly through a pipeline, and a water inlet is arranged at the upper part of the end cover and is communicated with the water outlet of the raw water tank through a pipeline.

[0012] Further, the pore size of the filter screen is 3-5 mm, and the pore size of the filter bag is 1-3 mm.

[0013] Further, the water inlet is located above the filter screen.

[0014] Further, a pull ring is arranged on the top of the filter bag.

[0015] Further, control valves are respectively arranged on the water inlet connecting pipeline and the water outlet connecting pipeline.

[0016] Compared with the prior art, the beneficial effects of the present application are as follows: the filter assembly is added, the detachable filter bag and the stirring blade are arranged in the middle part of the filter screen of the filter assembly, the raw water is stirred in the filter screen, the impurities are intercepted in the filter bag, the more efficient and more fine filtration of the circulating water is realized, and the impurities directly blocking the filter screen is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a system schematic view of the present application;

[0018] Figure 2 is a water storage tank schematic view;

[0019] Figure 3 is Figure 2 a partial cross-sectional schematic view;

[0020] Figure 4 is Figure 3 a partial enlarged schematic view;

[0021] In the figure: raw water tank 1, circulating water inlet pipe 2, reverse osmosis assembly 3, water storage tank 4, filter screen 5, feeding filter bag 6, stirring blade 7, end cover 8, driving motor 9, sliding rail 10, sliding groove 11, support 12, water outlet 13, water inlet 14, pull ring 15, water pump 16. DETAILED DESCRIPTION

[0022] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0023] As Figure 1 , 2 , 3 shows a circulating water treatment system for a submerged arc furnace, comprising a raw water tank 1 and a reverse osmosis assembly 3 connected by a pipeline, respectively used for storing circulating water of the submerged arc furnace, a filter assembly for filtering impurities in the circulating water is arranged between the raw water tank 1 and the reverse osmosis assembly 3, the filter assembly comprises a water storage tank 4 and an end cover 8 covering the upper part of the water storage tank 4, the water storage tank 4 is provided with a filter screen 5, a plurality of detachable filter bags 6 are arranged inside the filter screen 5, a stirring blade 7 is arranged in the middle part of the filter screen 5, and the rotating shaft in the middle part of the stirring blade 7 extends to the outside of the end cover 8 and is synchronously driven and connected with the driving motor 9 fixed on the upper part of the end cover 8.

[0024] As Figure 3As shown, the filter bag 6 opening direction is opposite to the stirring blade 7 rotating direction.

[0025] As shown in the drawings, the filter screen 5 is provided with a sliding rail 10 on the inner side, and a sliding groove 11 is arranged on one side of the filter screen 5 and matched with the sliding rail 10. Figure 3 , 4 As shown, the filter screen 5 is provided with a sliding rail 10 on the inner side, and a sliding groove 11 is arranged on one side of the filter screen 5 and matched with the sliding rail 10.

[0026] As shown in the drawings, the filter screen 5 is fixedly connected with the side wall of the water storage tank 4 through a support 12. Figure 3

[0027] As shown in the drawings, the water storage tank 4 is provided with a water outlet 13 at the lower part and is communicated with the water inlet of the reverse osmosis assembly 3 through a pipeline, and the end cover 8 is provided with a water inlet 14 at the upper part and is communicated with the water outlet of the raw water tank 1 through a pipeline. Figure 1 , 2 As shown, the filter screen 5 has a pore size of 3-5mm, and the filter bag 6 has a pore size of 1-3mm.

[0028] As shown, the filter screen 5 has a pore size of 3-5mm, and the filter bag 6 has a pore size of 1-3mm. Figure 1 , 3 As shown, the water inlet 14 is located above the filter screen 5.

[0029] As shown, the filter bag 6 is provided with a pull ring 15 at the top for easy pulling. Figure 1 2 As shown, the water inlet 14 is located above the filter screen 5.

[0030] As shown, the filter bag 6 is provided with a pull ring 15 at the top for easy pulling. Figure 3 As shown, the water inlet 14 is connected with a pipeline, and the water outlet 13 is connected with a pipeline, and control valves are respectively installed on the pipelines.

[0031] Figure 1 The implementation principle of the circulating water treatment system of the present application is as follows:

[0032] The circulating water in the electric arc furnace enters the raw water tank 1 through the circulating water inlet pipe 2, and the circulating water in the raw water tank 1 is discharged into the water storage tank 4 through the water pump 16, and is filtered through the filter screen 5 when discharged into the water storage tank 4;

[0033] When filtering, the driving motor 9 is started, and the driving motor 9 drives the stirring blade 7 to start rotating, and the stirring blade 7 stirs the circulating water in the filter screen 5 during rotation, and the circulating water flows into the water storage tank 4 through the filter hole under the stirring force, and the impurities larger than the pore size of the filter screen 5 are blocked in the filter screen 5;

[0034] When filtering, the driving motor 9 is started, and the driving motor 9 drives the stirring blade 7 to start rotating, and the stirring blade 7 stirs the circulating water in the filter screen 5 during rotation, and the circulating water flows into the water storage tank 4 through the filter hole under the stirring force, and the impurities larger than the pore size of the filter screen 5 are blocked in the filter screen 5;

[0035] ​​​At the same time, the circulating water is stirred, and the blocked impurities are intercepted in the filter bag 6 during the flowing process, so that the impurities are prevented from being accumulated on the filter screen surface and causing blockage, when the impurities in the filter bag 6 are accumulated to a certain degree and affect the filtering effect, the filter bag 6 is pulled down and taken off for cleaning or replacement by pulling the corresponding pull ring 15, so that the continuous and efficient operation of the filtering system is ensured;

[0036] After the double filtration of the filter screen 5 and the filter bag 6, the filtered circulating water enters the reverse osmosis assembly 3 for deep filtration, so that the filtering and purification of the circulating water of the ore smelting furnace are realized, and clean circulating water is provided for the normal operation of the ore smelting furnace.

[0037] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by the person skilled in the art that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only for illustrating the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A circulating water treatment system for a submerged arc furnace, comprising a raw water tank (1) for storing circulating water of the submerged arc furnace and a reverse osmosis assembly (3) connected by a pipeline, characterized in that: The raw water tank (1) is provided with a filter assembly for filtering impurities in circulating water between the raw water tank (1) and the reverse osmosis assembly (3), the filter assembly comprises a water storage tank (4) and a cover (8) covering the upper part of the water storage tank (4), the water storage tank (4) is provided with a filter screen (5), a plurality of detachable filter bags (6) are arranged inside the filter screen (5), a stirring blade (7) is arranged in the middle of the filter screen (5), and the rotating shaft in the middle of the stirring blade (7) extends to the outside of the cover (8) and is synchronously driven and connected with a driving motor (9) fixed on the upper part of the cover (8).

2. The circulating water treatment system for a submerged arc furnace according to claim 1, characterized in that: The opening direction of the filter bag (6) is opposite to the rotating direction of the stirring blade (7).

3. The system for circulating water treatment of the ore smelting furnace according to claim 1, characterized in that: A sliding rail (10) is arranged on the inner side of the filter screen (5), and a sliding groove (11) matched with the sliding rail (10) is arranged on one side of the filter screen (5).

4. The system for circulating water treatment of an ore smelting furnace according to claim 2, characterized in that: The filter screen (5) is connected and fixed with the side wall of the water storage tank (4) through a support (12).

5. The system for circulating water treatment of an ore smelting furnace according to claim 3, characterized in that: A water outlet (13) is arranged at the lower part of the water storage tank (4) and is communicated with the water inlet of the reverse osmosis assembly (3) through a pipeline, and a water inlet (14) is arranged at the upper part of the cover (8) and is communicated with the water outlet of the raw water tank (1) through a pipeline.

6. The system for circulating water treatment of an ore smelting furnace according to claim 3, characterized in that: The aperture of the filter screen (5) is 3-5mm, and the aperture of the filter bag (6) is 1-3mm.

7. The system for circulating water treatment of an ore smelting furnace according to claim 5, characterized in that: The water inlet (14) is located above the filter screen (5).

8. The system for circulating water treatment of an ore smelting furnace according to claim 6, characterized in that: A pull ring (15) is arranged at the top of the filter bag (6) for easy pulling.

9. The system for circulating water treatment of an ore smelting furnace according to claim 7, characterized in that: Control valves are respectively arranged on the connecting pipeline of the water inlet (14) and the connecting pipeline of the water outlet (13).

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