High-speed filter

Abstract

The utility model relates to a high-speed filter, which aims to solve the technical problem that the existing metallurgical wastewater filter is low in filtering efficiency, and adopts the technical scheme that a plurality of T-shaped filter heads are respectively arranged at a water inlet pipe and a water outlet pipe, and a second-layer filtering device is arranged in the middle of a furnace body. The wastewater can be efficiently filtered through the device; a backwashing device is arranged below the second-layer filter, and the grate is flushed regularly to prevent blockage; according to the utility model, a plurality of T-shaped filter heads are respectively arranged at the water inlet pipe and the water outlet pipe, the grate and the water cap are arranged in the middle of the furnace body, and wastewater can be efficiently filtered through the device through three-layer filtration.

Description

Technical Field

[0001] The utility model belongs to the technical field of iron and steel metallurgical wastewater treatment equipment, and specifically relates to a high-speed filter. Background Art

[0002] In the production process of iron and steel metallurgical wastewater treatment, the existing high-speed filter is a single-layer filter with low filtration efficiency and frequent leakage, which causes the nozzles of the secondary cooling spray system of the continuous casting machine to be frequently blocked, affecting the quality of the ingot. Utility Model Content

[0003] The purpose of the utility model is to solve the above problems and provide a high-speed filter.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A high-speed filter, comprising a furnace body, a water inlet pipe and a water outlet pipe, wherein the water inlet pipe extends into the upper part of the furnace body, is L-shaped in the furnace body and the end thereof is vertically upward, and the water outlet pipe is vertically arranged in the lower part of the furnace body and extends from the bottom of the furnace body, characterized in that it also comprises a plurality of first T-shaped filter heads, a plurality of second T-shaped filter head filtering devices and a backwashing device;

[0006] One end of the plurality of first T-shaped filter heads is evenly connected to the upper end of the water inlet pipe, and the other end is connected to the filter head water outlet pipe; one end of the plurality of second T-shaped filter heads is horizontally connected to the lower part of the water outlet pipe, and the other end is connected to the filter head water inlet pipe;

[0007] The filtering device comprises a grate and a plurality of water caps, wherein the grate is fixed to the middle and lower part of the inner wall of the furnace body through a bracket, a plurality of water filtering holes are evenly opened on the grate, and the plurality of water caps are arranged on the water filtering holes;

[0008] The backwash device includes a plurality of backwash pipes, which are arranged on the inner wall of the furnace body below the filtering device in a cross-connected manner. The main pipe of the backwash device extends out of the side wall of the furnace body and is externally connected to a backwash pump. The backwash pump is controlled by a backwash controller, and the backwash cycle is hours. Two rows of backwash holes are evenly opened on the upper part of the backwash pipe.

[0009] Furthermore, the support includes an I-beam and a circle of steel beams, the I-beam supports the middle part of the grate, and the steel beam is fixedly connected to the inner wall of the furnace body around the bottom of the outer circumference of the grate.

[0010] Furthermore, a plurality of reinforcing ribs are evenly arranged on the outer circumference of the top surface of the grate, and the other side of the reinforcing ribs is fixedly connected to the inner wall of the furnace body.

[0011] Furthermore, the angle α between the two rows of backwash punching holes is 40-50°.

[0012] Furthermore, the number of the water caps is ≥230.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is provided with several T-shaped filter heads at the water inlet pipe and the water outlet pipe, and a grate and a water cap are provided in the middle of the furnace body. By providing three layers of filtration, the wastewater can be efficiently filtered through the device;

[0015] 2. The utility model provides a backwash device to regularly flush the grate to prevent clogging;

[0016] 3. The grate of the utility model is fixed inside the furnace body by a bracket and reinforcing ribs, and has a firm structure, which can effectively prevent deviation during backwashing; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the T-type filter structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the grate structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the backwash device structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the cross-sectional structure of the backwash pipe of the utility model;

[0022] In the figure: 1. furnace body; 2. water inlet pipe; 3. first T-type filter head; 4. filter head water outlet pipe; 5. grate; 6. bracket; 7. water cap; 8. reinforcing ribs; 9. backwash pipe; 10. water outlet pipe; 11. second T-type filter head; 12. filter head water inlet pipe; 13. backwash punching hole. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-5 As shown, a high-speed filter comprises a furnace body 1, a water inlet pipe 2, and a water outlet pipe 10. The water inlet pipe 2 extends into the upper part of the furnace body 1, is L-shaped in the furnace body 1, and the end thereof is vertically upward. The water outlet pipe 10 is vertically arranged in the lower part of the furnace body 1 and extends from the bottom of the furnace body 1. It also comprises a plurality of first T-shaped filter heads 3, a plurality of second T-shaped filter heads 11, a filtering device, and a backwashing device.

[0025] One end of the plurality of first T-shaped filters 3 is evenly connected to the upper end of the water inlet pipe 2, and the other end is connected to the filter outlet pipe 4; one end of the plurality of second T-shaped filters 11 is horizontally connected to the lower part of the water outlet pipe 10, and the other end is connected to the filter inlet pipe 12;

[0026] The filtering device comprises a grate 5 and a plurality of water caps 7. The grate 5 is fixed to the middle and lower part of the inner wall of the furnace body 1 through a bracket 6. The grate 5 is evenly provided with a plurality of water filtering holes, and the plurality of water caps 7 are arranged on the water filtering holes.

[0027] The backwash device includes a plurality of backwash pipes 9, which are arranged on the inner wall of the furnace body 1 below the filter device in a cross-connected manner. The main pipe of the backwash device extends out of the side wall of the furnace body 1 and is connected to an external backwash pump. The backwash pump is controlled by a backwash controller, and the backwash cycle is 12 hours. Two rows of backwash punching holes 13 are evenly opened on the upper part of the backwash pipe 9.

[0028] The support 6 includes an I-beam and a circle of steel beams. The I-beam supports the middle part of the grate 5 , and the steel beam is fixedly connected to the inner wall of the furnace body 1 around the bottom of the outer circumference of the grate 5 .

[0029] A plurality of reinforcing ribs 8 are evenly arranged on the outer circumference of the top surface of the grate 5 , and the other side of the reinforcing ribs 8 is fixedly connected to the inner wall of the furnace body 1 .

[0030] The angle α between the two rows of backwash holes 13 is 40-50°.

[0031] The number of the water caps 7 is ≥230.

[0032] The working process of this utility model:

[0033] When the high-speed filter is in use, metallurgical wastewater flows in from the water inlet pipe 2, first passes through the first T-type filter head 3 for the first filtration, then flows out from the filter head outlet pipe 4 into the furnace body 1, falls downward on the grate 5, and then passes through the second filtration of the water cap 7 on the grate 5 and falls downward to the bottom of the furnace body 1. The wastewater at the bottom of the furnace body 1 enters the second T-type filter head 11 from the filter head water inlet pipe 12, and is discharged from the outlet pipe 10 after the third filtration of the second T-type filter head 11.

[0034] After a period of filtration of metallurgical wastewater, the grate 5 will be clogged, affecting the filtering effect. Every 12 hours, the backwash controller controls the backwash pump to start and input high-pressure water into the backwash pipe (9). After the backwash pipe (9) is filled with high-pressure water, it is sprayed upward along the backwash punching hole (13) to flush the grate 5 and wash away the pollutants, so that the grate 5 is rinsed clean and the filtering effect is restored.

Claims

1. A high-speed filter, comprising a furnace body (1), a water inlet pipe (2), and a water outlet pipe (10), wherein the water inlet pipe (2) extends into the upper part of the furnace body (1), is L-shaped inside the furnace body (1) and has an end that is vertically upward, and the water outlet pipe (10) is vertically arranged in the lower part of the furnace body (1) and extends from the bottom of the furnace body (1), characterized in that: It also includes a plurality of first T-shaped filter heads (3), a plurality of second T-shaped filter heads (11), filtering devices and a backwashing device; One end of the plurality of first T-shaped filter heads (3) is evenly and horizontally connected to the upper end of the water inlet pipe (2), and the other end is connected to the filter head water outlet pipe (4); one end of the plurality of second T-shaped filter heads (11) is horizontally connected to the lower part of the water outlet pipe (10), and the other end is connected to the filter head water inlet pipe (12); The filtering device comprises a grate (5) and a plurality of water caps (7); the grate (5) is fixed to the middle and lower part of the inner wall of the furnace body (1) through a bracket (6); a plurality of water filtering holes are evenly opened on the grate (5); and the plurality of water caps (7) are arranged on the water filtering holes; The backwash device comprises a plurality of backwash pipes (9), which are arranged on the inner wall of the furnace body (1) below the filtering device in a cross-connected manner. The main pipe of the backwash device extends out of the side wall of the furnace body (1) and is connected to an external backwash pump. The backwash pump is controlled by a backwash controller. The backwash cycle is 12 hours. Two rows of backwash punching holes (13) are evenly arranged on the upper part of the backwash pipe (9).

2. A high-speed filter according to claim 1, characterized in that: The support (6) comprises an I-beam and a circle of steel beams, wherein the I-beam supports the middle part of the grate (5), and the steel beam is fixedly connected to the inner wall of the furnace body (1) around the bottom of the outer circumference of the grate (5).

3. A high-speed filter according to claim 1, characterized in that: A plurality of reinforcing ribs (8) are evenly arranged on the outer circumference of the top surface of the grate (5), and the other side of the reinforcing ribs (8) is fixedly connected to the inner wall of the furnace body (1).

4. A high-speed filter according to claim 1, characterized in that: The angle α between the two rows of backwash punching holes (13) is 40-50°.

5. A high-speed filter according to claim 1, characterized in that: The number of the water caps (7) is ≥230.

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