Slag dust filtering device

Abstract

The utility model discloses a furnace slag dust filtering device, which belongs to the field of furnace slag recovery and comprises a furnace slag conveying device and a spraying device, a fixing frame is arranged between conveying belts of the furnace slag conveying device, and a dust filtering device is arranged below the furnace slag conveying device. The spraying device comprises a plurality of high-pressure flushing pipes on the two sides above the slag conveying device, a water storage tank located below the dust filtering device and a pressure pump for supplying energy to the high-pressure flushing pipes, and the high-pressure flushing pipes penetrate through the side wall of the fixing frame. Compared with the prior art, the detachable filter frame has the advantages that the detachable filter frame is more convenient to clean dust through the sliding structure that the pulleys on the two sides of the detachable filter frame are arranged in the sliding grooves in the side walls of the fixing frame, the water control cloth is used for filtering the dust, the water control cloth is connected with the detachable filter frame through the screws, and the water control cloth is convenient to clean. The water control cloth is convenient to replace, and the filtering efficiency is prevented from being influenced when the water control cloth is damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of furnace slag recycling, and particularly relates to a furnace slag dust filtering device. BACKGROUND

[0002] In the process of blast furnace steelmaking, a part of furnace slag is often left in the interior of the boiler, which is usually transported to a cooling area for standing cooling by using professional transportation equipment, so as to recycle the furnace slag. The recycling process of the furnace slag includes crushing, magnetic separation and recycling. When the crushed furnace slag is subjected to magnetic separation, a large amount of dust is generated because the furnace slag has been crushed by a crushing device. In order to ensure the safety of the magnetic separation workers, dust filtering is usually performed before magnetic separation.

[0003] The existing furnace slag dust filtering device usually installs a spraying device on a fixed frame between furnace slag conveying devices. After the furnace slag is washed by the spraying device, the dust-water mixture washed down is filtered and recycled by a dust filtering device below the furnace slag conveying device. The washing water after filtering flows into a water storage tank below the dust filtering device for recycling. In order to improve the water pressure of the high-pressure washing pipe of the spraying device, a pressure pump is added between the water storage tank and the high-pressure washing pipe.

[0004] Although the furnace slag dust filtering device can effectively filter the furnace slag dust, the filtered dust is stored in the dust filtering device, and the dust filtering device is usually connected with the fixed frame by welding, so that the dust is difficult to clean. SUMMARY

[0005] The utility model solves the technical problem that the dust filtering device of the existing furnace slag dust filtering device is integrated with the fixed frame, so that the dust is difficult to clean.

[0006] To solve the above technical problems, the utility model provides a technical scheme of a furnace slag dust filtering device. The furnace slag dust filtering device comprises a furnace slag conveying device and a spraying device. A fixed frame is arranged between the conveying belts of the furnace slag conveying device. A dust filtering device is arranged below the furnace slag conveying device. The spraying device comprises a plurality of high-pressure washing pipes on both sides above the furnace slag conveying device, a water storage tank below the dust filtering device, and a pressure pump for supplying power to the high-pressure washing pipes. The high-pressure washing pipes pass through the side walls of the fixed frame. The dust filtering device comprises a detachable filtering frame and a water control cloth inside the detachable filtering frame. The plate surface of the detachable filtering frame is provided with water leakage holes. The two sides of the detachable filtering frame are provided with a plurality of pulleys. The side walls of the fixed frame are provided with sliding grooves corresponding to the pulleys.

[0007] As an improvement, the water storage tank inside the fixed frame is integrated with the fixed frame.

[0008] As improvement, the conveying belt of the slag conveying device is a chain structure, and the inside of the fixed frame is provided with a limiting landslide limiting the moving position of the slag conveying device, and the limiting landslide is connected with the fixed frame through welding.

[0009] As improvement, the water control cloth is connected with the detachable filter frame through bolt structure.

[0010] As improvement, the fixed frame is provided with a filter device protection door preventing the splashing of filtered water, and the filter device protection door is connected with the side wall of the fixed frame through a hinge.

[0011] As improvement, the side surface of the water storage tank is provided with a water pumping port corresponding to the water inlet of the pressure pump, and the water outlet of the pressure pump is connected with the high-pressure flushing pipe through a shunt pipeline.

[0012] Compared with the prior art, the device is more convenient to clean dust through the sliding structure of the detachable filter frame two side pulleys in the fixed frame side wall sliding groove, the device filters dust through the water control cloth, and the water control cloth is connected with the detachable filter frame through a screw, so that the water control cloth is convenient to replace, and the influence of the water control cloth on the filtering efficiency when the water control cloth is damaged is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a total structure diagram of the slag dust filtering device.

[0014] Figure 2 is a total structure sectional view of the slag dust filtering device.

[0015] Figure 3 is an explosion view of the total structure of the slag dust filtering device.

[0016] Figure 4 is a detachable filter frame structure diagram of the slag dust filtering device.

[0017] As shown in the drawings: 1, slag conveying device; 2, spraying device; 21, high-pressure flushing pipe; 22, water storage tank; 221, water pumping port; 23, pressure pump; 24, shunt pipeline; 3, fixed frame; 31, limiting landslide; 32, protection door; 4, dust filtering device; 41, detachable filter frame; 411, water leakage hole; 42, water control cloth; 43, pulley; 44, sliding groove; DETAILED DESCRIPTION

[0018] The utility model makes further detailed description in combination with the drawings.

[0019] As described in the specification Figure 1 ,2 As shown in FIG. 3, the slag conveying device 1 is provided with a fixed frame 3 between the conveying belts, and the conveying belts of the slag conveying device 1 are in chain structure, and the inside of the fixed frame 3 is provided with a limiting slide 31 for limiting the moving position of the slag conveying device 1. Since the conveying belts of the slag conveying device 1 are in chain structure, the dust residues can flow out more easily, and the spray water can be prevented from flowing out of the fixed frame 3.

[0020] The spray device 2 includes a plurality of high-pressure flushing pipes 21 on both sides above the slag conveying device 1, a water storage tank 22 below the dust filtering device 3, and a pressurizing pump 23 for supplying power to the high-pressure flushing pipes 21. The high-pressure flushing pipes 21 pass through the side wall of the fixed frame 3, the water storage tank 22 in the inside of the fixed frame 3 is in integrated structure with the fixed frame 3, the side of the water storage tank 22 is provided with a water pumping port 221 corresponding to the water inlet of the pressurizing pump 23, and the water outlet of the pressurizing pump 23 is connected with the high-pressure flushing pipes 21 through a shunt pipeline 24. The high-pressure flushing pipes 21 are divided into a plurality of single units through the shunt pipeline 24, so that the slag flushing is more uniform.

[0021] As shown in the description accompanying drawings Figure 3 , 4 The dust filtering device 4 is arranged below the slag conveying device 1, and includes a detachable filtering frame 41 and a water control cloth 42 arranged in the inside of the detachable filtering frame 41. The water control cloth 42 is connected with the detachable filtering frame 41 through a bolt structure, and the plate surface of the detachable filtering frame 41 is provided with a water leakage hole 411. The two sides of the detachable filtering frame 41 are provided with a plurality of pulleys 43, and the side wall of the fixed frame 3 is provided with a sliding groove 44 corresponding to the pulleys 43. The sliding connection of the pulleys 43 and the sliding groove 44 can make the dust filtering device 4 change into a detachable state, so that the cleaning is more simple.

[0022] The fixed frame 3 is provided with a filtering device protection door 32 for preventing the filtering water from splashing. The filtering device protection door 32 is connected with the side wall of the fixed frame 3 through a hinge, and the filtering water can be better circulated through the protection door 32.

[0023] The utility model discloses in the specific implementation, place the fixed frame 3 between the conveyer belt of slag conveying device 1, and the conveyer belt of slag conveying device 1 is located below the limiting landslide 31, the high pressure flush pipe 21 is inserted into the via of fixed frame 3 side wall, makes its water outlet to be located on the conveyer belt of slag conveying device 1, the water inlet of pressurizing pump 23 is connected on the water pumping port 221, and the water inlet of shunt pipeline 24 is connected at the water outlet of pressurizing pump 23, and the branch pipe of shunt pipeline 24 is connected respectively at the water inlet of each high pressure flush pipe 21, the water control cloth 42 is placed in the inside of detachable filter frame 41, and the screw is screwed into the screw hole of both, and fixed, the pulley 43 of detachable filter frame 41 both sides is slipped into the sliding slot 44 in the inside of fixed frame 3, and the side of protective door 32 is fixed in the open end of fixed frame 3 side using hinge, and is fixed using screw.

[0024] When using, add the filter water in water storage tank 22, start pressurizing pump 23 and slag conveying device 1, and the even distribution of slag is placed on the conveyer belt of slag conveying device 1, and the dust on the surface of slag is filtered into the water control cloth 42 below with water flow through the conveyer belt gap under the washing of high pressure flush pipe 21, and the water flow is not limited to pass through the water control cloth 42, and is recirculated in water storage tank 22 through the water leakage hole 411 on the board surface of detachable filter frame 41, when the dust in water control cloth 42 is full, open protective door 32, and the pulley 43 of detachable filter frame 41 both sides is slipped from sliding slot 44, and the dust in water control cloth 42 is poured into dust storage place after taking out.

[0025] The above describes the utility model and its implementation, and this kind of description has no limit, and the shown in the drawing is only one of the embodiment of the utility model, and the actual structure is not limited to this. In general, if the ordinary skill in the art is inspired, without departing from the utility model creation tenet, not creative design is similar to the structure mode and example of the technical scheme, should belong to the protection scope of the utility model.

Claims

1. A slag dust filtering device, comprising a slag conveying device (1) and a spraying device (2), a fixed frame (3) is arranged between the conveying belts of the slag conveying device (1), a dust filtering device (4) is arranged below the slag conveying device (1), the spraying device (2) comprises a plurality of high-pressure flushing pipes (21) arranged on both sides above the slag conveying device (1), a water storage tank (22) arranged below the dust filtering device (4), and a pressurizing pump (23) for supplying power to the high-pressure flushing pipes (21), the high-pressure flushing pipes (21) pass through the side walls of the fixed frame (3), characterized in that: The dust filtering device (4) comprises a detachable filter frame (41) and a water control cloth (42) inside the detachable filter frame (41), the detachable filter frame (41) is provided with water leakage holes (411) on the plate surface, and the two sides of the detachable filter frame (41) are provided with a plurality of pulleys (43), and the side wall of the fixed frame (3) is provided with a sliding groove (44) corresponding to the pulley (43).

2. A slag dust filtering device according to claim 1, characterized in that: The water storage tank (22) inside the fixed frame (3) is an integrated structure with the fixed frame (3).

3. A slag dust filtering device according to claim 1, characterized in that: The conveying belt of the slag conveying device (1) is a chain structure, and the inside of the fixed frame (3) is provided with a limiting sliding slope (31) for limiting the moving position of the slag conveying device (1).

4. A slag dust filtering device according to claim 1, characterized in that: The water control cloth (42) is connected with the detachable filter frame (41) through a bolt structure.

5. A slag dust filtering device according to claim 4, characterized in that: The fixed frame (3) is provided with a filter device protection door (32) for preventing the splashing of filtered water, and the filter device protection door (32) is connected with the side wall of the fixed frame (3) through a hinge.

6. A slag dust filtering device according to claim 1, characterized in that: The side of the water storage tank (22) is provided with a water pumping port (221) corresponding to the water inlet of the pressure pump (23), and the water outlet of the pressure pump (23) is connected with the high-pressure flushing pipe (21) through a shunt pipe (24).

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