Filtering device for pretreatment of making acid from coking desulfurization waste liquid

Abstract

The utility model belongs to the technical field of desulfurization waste liquid acid making devices, and discloses a filter device for coking desulfurization waste liquid acid making pretreatment, which comprises a rack, a case is arranged on one side of the rack, a discharge port is arranged on the outer wall of the case, a feed pipe is arranged on the outer wall of the case, a spray head is arranged on the outer wall of the feed pipe, and a filter screen is arranged on the outer wall of the spray head. A bearing is embedded in the inner side wall of the case, a bottom plate is fixedly connected to the inner ring of the bearing, and a filter frame is fixedly connected to one side of the bottom plate. Through arrangement of the case, the feeding pipe, the filter frame, the first gear, the motor, the second gear, the supporting rod and the cleaning plate, raw material liquid is uniformly added into the filter frame, the motor is started to drive the filter frame to rotate at a high speed, and the cleaning plate scrapes the inner wall of the filter frame when the filter frame rotates, so that the condition that filter holes of the filter frame are blocked in the filtering process is avoided; the filtering frame rotates at a high speed to throw the liquid into the case, so that the filtering speed is greatly increased.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization waste liquid acid making devices, and more specifically to a filtering device for pre-treatment of coking desulfurization waste liquid acid making. Background Art

[0002] As we all know, coking desulfurization waste liquid is produced during the purification of coke oven gas. Long-term accumulation affects the desulfurization efficiency and needs to be discharged continuously or regularly. The waste liquid contains salts such as thiocyanate ions and thiosulfate ions. The concentrated acid production from desulfurization waste liquid uses low-quality sulfur paste and desulfurization waste liquid as raw materials to produce concentrated sulfuric acid, which is the raw material for producing ammonium sulfate. The acid production from coking desulfurization waste liquid requires multiple processes such as pretreatment, incineration, and purification. The pretreatment process uses a filtration device to filter the waste liquid to separate small solid particles from the desulfurization liquid, making it more convenient for subsequent treatment processes.

[0003] However, most of the existing filtration devices for desulfurization waste liquid acid production pretreatment on the market directly filter through the filter screen, and the filtration speed is relatively slow, which greatly reduces the working efficiency of the device and delays the overall progress of desulfurization waste liquid acid production. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a filtering device for pre-treatment of coking desulfurization waste liquid for acid production.

[0005] The utility model provides a filtering device for pre-treatment of coking desulfurization waste liquid for acid production, which adopts the following technical scheme:

[0006] A filtering device for pretreatment of acid production from coking desulfurization waste liquid comprises a frame, a chassis is provided on one side of the frame, a discharge port is opened on the outer wall of the chassis, a feed pipe is provided on the outer wall of the chassis, a nozzle is provided on the outer wall of the feed pipe, a bearing is inlaid on the inner wall of the chassis, the inner ring of the bearing is fixedly connected to a bottom plate, and a filter frame is fixedly connected to one side of the bottom plate.

[0007] The outer wall of the filter frame is fixedly sleeved with a first gear, the inner wall of the chassis is provided with a motor, the output end of the motor is provided with a rotating rod through a coupling, one end of the rotating rod is fixedly connected to the second gear, the outer wall of the feed pipe is fixedly connected to a support rod, one end of the support rod is fixedly connected to a cleaning plate, one side of the bottom plate is fixedly connected to an electric rod, one end of the electric rod is provided with a scraper.

[0008] Furthermore, a discharge pipe is provided at the bottom of the chassis, and a discharge valve is provided on the outer wall of the discharge pipe.

[0009] Through the above technical solution, the filtered liquid can be discharged by opening the discharge valve.

[0010] Furthermore, the bottom plate is rotatably sleeved with the feed pipe, and a feed valve is provided on the outer wall of the feed pipe.

[0011] Through the above technical solution, by opening the feed valve, the feed pipe is connected to the external raw material pipe, so that the raw material liquid can be added to the interior of the chassis.

[0012] Furthermore, the second gear is meshingly connected with the first gear, and a box door is provided on the inner wall of the discharge port.

[0013] Through the above technical solution, when the motor drives the second gear to rotate, the filter frame is driven to rotate at a high speed through the meshing of the first gear and the second gear.

[0014] Furthermore, the cleaning plate is slidably connected to the inner wall of the filter frame, and the scraper is in the shape of a "ring" structure.

[0015] Through the above technical solution, the cleaning plate can scrape the inner wall of the filter frame.

[0016] Furthermore, a limiting groove is provided on the outer wall of the scraper plate, and the limiting groove is slidably sleeved with the cleaning plate.

[0017] Through the above technical solution, the scraper can scrape small solid particle impurities out of the filter frame.

[0018] In summary, the present invention includes at least one of the following beneficial technical effects:

[0019] (1) The raw liquid is evenly added to the interior of the filter frame through the provided chassis, feed pipe, filter frame, first gear, motor, second gear, support rod and cleaning plate, and the motor is started to drive the filter frame to rotate at high speed. When the filter frame rotates, the cleaning plate scrapes the inner wall of the filter frame, so that the filter holes of the filter frame will not be blocked during the filtration process. The high-speed rotation of the filter frame will throw the liquid into the interior of the chassis, thereby greatly accelerating the filtration speed, improving the working efficiency of the device, and accelerating the overall desulfurization waste liquid acid production work progress.

[0020] (2) By setting up the filter frame, electric rod, scraper and limit groove, the discharge valve can be opened to take out the filtered liquid. By starting one end of the electric rod to drive the scraper to move toward the discharge port and opening the box door, the small solid particles filtered by the filter frame can be pushed out of the box, thereby collecting and cleaning the liquid and impurities after solid-liquid separation, thereby further meeting the working requirements of the device and making it worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a filtering device for pre-treatment of coking desulfurization waste liquid for acid production;

[0022] Figure 2It is a front cross-sectional view of the filter frame in the utility model;

[0023] Figure 3 for Figure 2 A magnified view of the structure at center A;

[0024] Figure 4 It is a structural schematic diagram of the scraper in the utility model.

[0025] Description of the numbers in the figure:

[0026] 1. Frame; 2. Chassis; 3. Discharge pipe; 4. Discharge valve; 5. Feed pipe; 6. Nozzle; 7. Feed valve; 8. Bearing; 9. Bottom plate; 10. Filter frame; 11. First gear; 12. Motor; 13. Rotating rod; 14. Second gear; 15. Discharge port; 16. Box door; 17. Support rod; 18. Cleaning plate; 19. Electric rod; 20. Scraper; 21. Limiting groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The following is combined with Figure 1-4 The utility model is described in further detail.

[0031] The utility model embodiment discloses a filtering device for pre-treatment of coking desulfurization waste liquid acid production. Figure 1-4 , including a frame 1, a chassis 2 is provided on one side of the frame 1, a discharge port 15 is opened on the outer wall of the chassis 2, a feed pipe 5 is provided on the outer wall of the chassis 2, a nozzle 6 is provided on the outer wall of the feed pipe 5, a bearing 8 is inlaid on the inner wall of the chassis 2, the inner ring of the bearing 8 is fixedly connected to a bottom plate 9, and a filter frame 10 is fixedly connected to one side of the bottom plate 9.

[0032] A first gear 11 is fixedly sleeved on the outer wall of the filter frame 10, a motor 12 is provided on the inner wall of the chassis 2, a rotating rod 13 is provided at the output end of the motor 12 through a coupling, one end of the rotating rod 13 is fixedly connected to the second gear 14, a support rod 17 is fixedly connected to the outer wall of the feed pipe 5, a cleaning plate 18 is fixedly connected to one end of the support rod 17, an electric rod 19 is fixedly connected to one side of the bottom plate 9, a scraper 20 is provided at one end of the electric rod 19, the raw liquid is evenly added to the inside of the filter frame 10, the motor 12 is started to drive the filter frame 10 to rotate at a high speed, and the cleaning plate 18 scrapes the inner wall of the filter frame 10 when the filter frame 10 rotates, so that the filter holes of the filter frame 10 will not be blocked during the filtration process, and the high-speed rotation of the filter frame 10 will throw the liquid into the inside of the chassis 2, thereby greatly accelerating the filtration speed, improving the working efficiency of the device, and accelerating the overall desulfurization waste liquid acid production work progress.

[0033] In this embodiment, a discharge pipe 3 is provided at the bottom of the chassis 2 , and a discharge valve 4 is provided on the outer wall of the discharge pipe 3 . The filtered liquid can be discharged by opening the discharge valve 4 .

[0034] In this embodiment, the bottom plate 9 is rotatably connected to the feed pipe 5, and a feed valve 7 is provided on the outer wall of the feed pipe 5. The feed pipe 5 will not affect the rotation of the bottom plate 9. By opening the feed valve 7, the feed pipe 5 is connected to the external raw material pipe, so that the raw material liquid can be added to the interior of the chassis 2.

[0035] In this embodiment, the second gear 14 is meshed with the first gear 11, and a box door 16 is provided on the inner wall of the discharge port 15. When the motor 12 drives the second gear 14 to rotate, the first gear 11 and the second gear 14 are meshed to drive the filter frame 10 to rotate at high speed.

[0036] In this embodiment, the cleaning plate 18 is slidably connected to the inner wall of the filter frame 10 , and the scraper 20 is in a “ring” shape. When the filter frame 10 rotates, the cleaning plate 18 can scrape the inner wall of the filter frame 10 .

[0037] In this embodiment, the outer wall of the scraper 20 is provided with a limiting groove 21 , and the limiting groove 21 is slidably connected with the cleaning plate 18 . When the electric rod 19 is started, the scraper 20 can be driven to move, and the scraper 20 can scrape small solid particles of impurities out of the filter frame 10 .

[0038] The implementation principle of the filter device for pretreatment of coking desulfurization waste liquid acid production in the embodiment of the utility model is as follows: first, the feed pipe 5 is connected to the external raw material pipe, the feed valve 7 is opened, the number of nozzles 6 is multiple, and the raw material liquid can be evenly added to the inside of the filter frame 10, and the motor 12 is started, and the filter frame 10 is driven to rotate at a high speed through the meshing of the first gear 11 and the second gear 14, and the liquid will be thrown out to the inside of the chassis 2;

[0039] Secondly, since the cleaning plate 18 slides with the inner wall of the filter frame 10, the cleaning plate 18 scrapes the inner wall of the filter frame 10 when the filter frame 10 rotates, and the filter holes of the filter frame 10 will not be blocked;

[0040] Finally, after the filtering work is completed, the discharge valve 4 is opened to take out the filtered liquid, the box door 16 is opened, and one end of the electric rod 19 is started to drive the scraper 20 to move toward the discharge port 15, so that the small solid particles filtered by the filter frame 10 can be pushed out of the chassis 2.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A filtering device for pre-treatment of coking desulfurization waste liquid acid production, comprising a frame (1), characterized in that: A machine case (2) is provided on one side of the frame (1), a material outlet (15) is provided on the outer wall of the machine case (2), a material feed pipe (5) is provided on the outer wall of the machine case (2), a nozzle (6) is provided on the outer wall of the material feed pipe (5), a bearing (8) is inlaid on the inner wall of the machine case (2), the inner ring of the bearing (8) is fixedly connected to a bottom plate (9), and a filter frame (10) is fixedly connected to one side of the bottom plate (9); The outer wall of the filter frame (10) is fixedly sleeved with a first gear (11); the inner wall of the chassis (2) is provided with a motor (12); the output end of the motor (12) is provided with a rotating rod (13) via a coupling; one end of the rotating rod (13) is fixedly connected to a second gear (14); the outer wall of the feed pipe (5) is fixedly connected to a support rod (17); one end of the support rod (17) is fixedly connected to a cleaning plate (18); one side of the bottom plate (9) is fixedly connected to an electric rod (19); one end of the electric rod (19) is provided with a scraper (20).

2. A filtering device for pretreatment of coking desulfurization waste liquid acid production according to claim 1, characterized in that: A discharge pipe (3) is provided at the bottom of the chassis (2), and a discharge valve (4) is provided on the outer wall of the discharge pipe (3).

3. A filtering device for pretreatment of coking desulfurization waste liquid acid production according to claim 1, characterized in that: The bottom plate (9) is rotatably sleeved with the feed pipe (5), and a feed valve (7) is provided on the outer wall of the feed pipe (5).

4. The filtering device for pre-treatment of coking desulfurization waste liquid acid production according to claim 1, characterized in that: The second gear (14) is meshingly connected with the first gear (11), and a box door (16) is provided on the inner wall of the discharge port (15).

5. The filtering device for pre-treatment of coking desulfurization waste liquid for acid production according to claim 1, characterized in that: The cleaning plate (18) is slidably connected to the inner wall of the filter frame (10), and the scraper (20) is in the shape of a "circular ring" structure.

6. A filtering device for pre-treatment of coking desulfurization waste liquid acid production according to claim 1, characterized in that: The outer wall of the scraper plate (20) is provided with a limiting groove (21), and the limiting groove (21) is slidably sleeved with the cleaning plate (18).

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