Filtering device for slag water in coal gasification production

Abstract

The utility model discloses a coal gasification production slag water filtering device which comprises a containing tank body, a water inlet and a slag discharging opening are formed in the side wall of the containing tank body, a water discharging opening is formed in the bottom end of the containing tank body, and an automatic slag filtering assembly is arranged in an inner cavity of the containing tank body. The utility model has the beneficial effects that solid particulate matters filtered out in the accommodating tank body are effectively, quickly and automatically discharged through the automatic filtering and deslagging assembly, the blockage is not easy, the time and labor are saved, the work of frequently disassembling and cleaning the original filtering device is avoided, the slag water filtering system can continuously operate, and the working efficiency is improved. And the treatment pressure of the slag water filtering system is reduced.

Description

Technical field:

[0001] The utility model belongs to the field of coal chemical industry, and in particular relates to a slag water filtering device for coal gasification production. Background technology:

[0002] The high-temperature liquid slag produced by coal gasification falls into the slag pool water and is quenched into small particles. The high-temperature synthesis gas produced by coal gasification is quenched and washed to remove halogen and salt impurities in the synthesis gas. Slag water, commonly known as "black water", will be produced in the above-mentioned treatment processes of high-temperature liquid slag and high-temperature synthesis gas. These slag waters contain a large amount of solid particles, which can easily cause blockage and wear of the pipelines in the coal gasification system during the recovery, treatment and transportation of the slag water. Therefore, it is necessary to filter the impurities in the black water. In the prior art, a filter is generally set at the inlet of the slag water pipeline. However, due to the large output of slag water and the high content of solid particles, the workload of the filter is large and blockage often occurs. On-site operators are required to frequently shut down the machine to disassemble and clean the filter, which is not only time-consuming and labor-intensive, but also reduces the working efficiency of the slag water filtration system and increases the upstream pressure of the slag water system. Utility model content:

[0003] The purpose of the utility model is to provide a slag water filtering device for coal gasification production, and overcome the shortcomings of the above-mentioned prior art, and effectively solve the existing problem of low slag water filtering rate.

[0004] The content of the utility model: a coal gasification production slag water filtering device, comprising a containing tank body, a water inlet and a slag discharge port are provided on the side wall of the containing tank body, a water outlet is provided at the bottom of the containing tank body, and an automatic slag filter assembly is arranged in the inner cavity of the containing tank body, the automatic slag filter assembly comprises a screw, the screw is coaxial with the containing tank body, the top of the screw is transmission connected with a driving motor, the driving motor is mounted on the top wall of the containing tank body, a round block is rotatably connected to the screw, a conical filter disc is coaxially mounted on the bottom of the round block, a limiting ring is installed on the inner wall of the containing tank body, the limiting ring is located below the conical filter disc, an anti-rotation limiting device is arranged on the conical filter disc, the anti-rotation limiting device comprises a sliding block, the sliding block is mounted on the circumferential surface of the conical filter disc, a groove is vertically provided on the inner wall of the containing tank body, the sliding block slides in the groove, and the groove is located on the opposite side of the water inlet.

[0005] Furthermore, the side wall of the conical filter disc is slidably fitted with the inner wall of the containing tank.

[0006] Furthermore, the slag discharge port is inclined downward.

[0007] Furthermore, the bottom of the containing tank is arc-shaped.

[0008] The beneficial effects of the utility model are as follows: the solid particles filtered out of the holding tank can be effectively and quickly discharged through the automatic filtering and slag discharge component, which is not easy to be blocked, saves time and effort, avoids the need for frequent disassembly and cleaning of the original filtering device, allows the slag water filtration system to operate continuously, and reduces the processing pressure of the slag water filtration system. Description of the drawings:

[0009] Figure 1 It is a partial cross-sectional view of the main view of the utility model;

[0010] Figure 2 for Figure 1 A cross-sectional view of the AA portion;

[0011] Figure 3 It is a rear view of the utility model;

[0012] In the figure, 1 is a containing tank body, 2 is a water inlet, 3 is a slag outlet, 4 is a water outlet, 5 is a lead screw, 6 is a driving motor, 7 is a round block, 8 is a conical filter disc, 9 is a limiting ring, 10 is a slider, and 11 is a groove. Specific implementation method:

[0013] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings:

[0014] like Figures 1 to 3 As shown, a coal gasification production slag water filtering device comprises a containing tank body 1, a water inlet 2 and a slag discharge port 3 are provided on the side wall of the containing tank body 1, a water outlet 4 is provided at the bottom end of the containing tank body 1, an automatic slag filter assembly is arranged in the inner cavity of the containing tank body 1, and the automatic slag filter assembly comprises a lead screw 5, the lead screw 5 is coaxial with the containing tank body 1, the top end of the lead screw 5 is transmission-connected with a driving motor 6, the driving motor 6 is mounted on the top wall of the containing tank body 1, a round block 7 is rotatably connected to the lead screw 5, and a round block 7 is provided on the lead screw 5. A conical filter disc 8 is coaxially mounted on the bottom of the block 7, and a limiting ring 9 is mounted on the inner wall of the containing tank body 1, the limiting ring 9 is located below the conical filter disc 8, and an anti-rotation limiting device is arranged on the conical filter disc 8, the anti-rotation limiting device comprises a slider 10, the slider 10 is mounted on the circumferential surface of the conical filter disc 8, a groove 11 is vertically opened on the inner wall of the containing tank body 1, the slider 10 slides in the groove 11, and the groove 11 is located on the opposite side of the water inlet 2.

[0015] Specifically, the solid particles contained in the slag water can be effectively filtered and discharged through the automatic slag filter component.

[0016] During actual use, the slag water enters the containing tank body 1 through the water inlet 2, and the conical filter disc 8 filters out the solid particles carried in the slag water, and the slag water is transported to the next work section from the drain port 4. At this time, the round block 7 is driven by the reciprocating screw 5 to reciprocate, and the conical filter disc 8 pushes the filtered solid particles to two symmetrically arranged slag discharge ports 3 for discharge; the limit ring 9 prevents the conical filter disc 8 from separating from the reciprocating screw 5 when it moves up and down; the slider 10 slides up and down in the groove 11, thereby limiting the conical filter disc 8 and the reciprocating screw 5 from rotating in the same direction, so that the conical filter disc 8 can realize reciprocating motion; the slag water filtering device can be installed on the slag water conveying pipeline.

[0017] like Figures 1 to 3 As shown, a coal gasification production slag water filtering device, the side wall of the conical filter disc 8 is slidably fitted with the inner wall of the containing tank body 1, the angle of the slag discharge port 3 is inclined downward, and the bottom of the containing tank body 1 is arc-shaped.

[0018] Specifically, the slag discharge port 3 inclined downwardly facilitates the rapid discharge of solid matter.

[0019] In actual use, the slag discharge port 3 tilted downward is convenient for the rapid discharge of solid matter, and the arc-shaped bottom end of the container body 1 is convenient for the rapid discharge of slag water to avoid slag water residue.

[0020] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal gasification slag water filtering device, characterized in that: The invention comprises a container body (1), a water inlet (2) and a slag discharge port (3) are provided on the side wall of the container body (1), a water outlet (4) is provided at the bottom end of the container body (1), an automatic slag filter assembly is arranged in the inner cavity of the container body (1), the automatic slag filter assembly comprises a lead screw (5), the lead screw (5) is coaxial with the container body (1), the top end of the lead screw (5) is transmission-connected to a drive motor (6), the drive motor (6) is mounted on the top wall of the container body (1), a round block (7) is rotatably connected to the lead screw (5), and a round block (7) is provided at the bottom end of the round block (7). A conical filter disc (8) is coaxially mounted on the inner wall of the containing tank body (1), a limiting ring (9) is mounted on the inner wall of the containing tank body (1), the limiting ring (9) is located below the conical filter disc (8), an anti-rotation limiting device is arranged on the conical filter disc (8), the anti-rotation limiting device comprises a slider (10), the slider (10) is mounted on the circumferential surface of the conical filter disc (8), a groove (11) is vertically opened on the inner wall of the containing tank body (1), the slider (10) slides in the groove (11), and the groove (11) is located on the opposite side of the water inlet (2).

2. A coal gasification slag water filtering device according to claim 1, characterized in that: The side wall of the conical filter disc (8) is slidably fitted with the inner wall of the containing tank body (1).

3. The coal gasification slag water filtering device according to claim 1, characterized in that: The slag discharge port (3) is arranged at an angle inclined downward.

4. The coal gasification slag water filtering device according to claim 1, characterized in that: The bottom of the containing tank (1) is in an arc shape.

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