Dedusting water treatment device based on recycling of dedusting water of converter

Abstract

The utility model relates to the field of converter dedusting water treatment equipment, in particular to a dedusting water treatment device based on converter dedusting water recycling, which comprises a sediment box, a filtering mechanism and a degradation box, the filtering mechanism comprises a base, a rotating motor, a rack and a filtering frame, supports are symmetrically arranged on the sides of the base, and an annular frame is fixedly mounted at the top of each support. The rack is fixedly installed at the center of the base, the rotating motor is fixedly installed at the top of the rack, the filtering frame is installed at the output end of the rotating motor, through the design of the settling box, large particles sink to the bottom of the box under the action of gravity, light particles rise along with water flow, and effective separation is achieved; through automatic control of the drainage pipe arranged on the side of the settling tank in a surrounding mode and the electric valve, automatic drainage of supernate can be achieved, the settling efficiency is improved, excessive impurities can be prevented from being accumulated on the filtering discs through a switching mechanism of the filtering discs, the consistency of the filtering effect is guaranteed, and the filtering efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of converter dust removal water treatment equipment, in particular to a dust removal water treatment device based on the circular use of converter dust removal water. Background Art

[0002] The dust removal water generated during the converter steelmaking process is primarily used to supply the lances, nozzles, and venturi nozzles of scrubbers in dust removal equipment. This water, atomized by the lances and nozzles, is further atomized into an even finer mist by the dust-laden airflow in the flue. The large amount of water mist wets and agglomerates the dust. Under the influence of inertial collision, centrifugal force, and gravity, the captured dust is separated in the scrubber's drain seals and elbow dehydrators. As the steelmaking cycle changes, the composition of the dust captured by the dust removal water also changes. Combined with the unique characteristics of steelmaking, the dust removal water exhibits characteristics such as high hardness, high alkalinity, high suspended solids content, and a constantly changing composition.

[0003] The traditional converter dust removal water treatment method has the following technical difficulties:

[0004] Large fluctuations in water quality: The quality of converter dust removal wastewater fluctuates greatly with the change of blowing cycle, and the range of suspended matter changes is between several hundred mg / L and tens of thousands of mg / L. The suspended matter contained in the wastewater is relatively fine, and it is difficult to meet the water quality purification requirements by natural sedimentation alone.

[0005] High hardness and strong alkalinity: When lime is added to make slag in converter smelting, a large amount of lime powder enters the water treatment system, causing the pH value to reach 12-13 and the total hardness to reach 550 mg / L (calculated as CaCO3). The high hardness and strong alkaline sewage causes scaling of pump impellers, cooling towers, and venturi tubes during operation, forcing them to be frequently inspected and cleaned.

[0006] Problem of coarse suspended matter: The converter wastewater contains a large amount of coarse suspended matter, which can easily cause pipe blockage, pump wear, sludge discharge difficulties, filter failure, and bring a large impact load to the sedimentation tank. The system must give priority to solving the problem of coarse particle pre-removal.

[0007] Sludge dehydration problem: The converter sludge has fine particle size and sticky material. In the past, vacuum filtration was mostly used, which has low efficiency, high maintenance, short filter belt life, high sludge moisture content, and the filtered sludge does not form a cake, but is in a thin mud state, which can easily cause secondary pollution. Utility Model Content

[0008] (1) Technical problems solved

[0009] In view of the deficiencies of the prior art, the utility model provides a dust removal water treatment device based on the recycling of converter dust removal water.

[0010] (2) Technical solution

[0011] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: the dust removal water treatment device based on the circulation of converter dust removal water of the present invention comprises a sedimentation box, a filtering mechanism and a degradation box, the filtering mechanism comprises a base, a rotating motor, a frame and a filter frame, the sides of the base are symmetrically provided with brackets, the top of the bracket is fixedly installed with a ring frame, the frame is fixedly installed at the center of the base, the rotating motor is fixedly installed on the top of the frame, the filter frame is installed at the output end of the rotating motor, and the filter frame is slidably installed on the ring frame, the filter frame is symmetrically provided with filter discs, the sedimentation box is installed on the base and is located below the filter disc, the sedimentation box is a semicircular cylindrical structure, a plurality of drainage pipes are arranged around the sides of the sedimentation box, and a plurality of degradation boxes are provided, the drainage pipes are connected with the degradation box through a conduit, and an electric valve is provided on the drainage pipe.

[0012] Preferably, a medicine box is fixedly mounted on the outer wall of the sedimentation tank, and flocculant is stored in the medicine box. A booster pump is installed on the top of the medicine box, and the input end of the booster pump is connected to the medicine box through a medicine inlet pipe, and the output end of the booster pump is connected to the sedimentation tank through a medicine delivery pipe.

[0013] Further preferably, a spray head is installed at the end of the drug delivery tube.

[0014] Again preferably, the filter frame is provided with a partition plate, the filter disc is provided with a side frame, the side frame is overlapped on the filter frame and the partition plate, and a filter screen is provided at the bottom of the filter disc.

[0015] Preferably, the interior of the degradation box is also provided with several layers of degradation racks, and the degradation racks are provided with biodegradable nets.

[0016] Further preferably, the sedimentation box and the degradation box are both provided with cleaning ports, and both cleaning ports are provided with sealing plates, the sealing plates are penetrated by fixing bolts, and the fixing bolts penetrate the sealing plates through threaded structures and are connected to the sedimentation box and the degradation box.

[0017] Again preferably, a plurality of sliding grooves are provided on the inner wall of the degradation box, and the sides of the degradation rack are slidably connected to the sliding grooves.

[0018] (3) Beneficial effects

[0019] Compared with the prior art, the present invention provides a dust removal water treatment device based on the recycling of converter dust removal water, which has the following beneficial effects:

[0020] Efficient precipitation:

[0021] Through the design of the sedimentation box, larger particles settle to the bottom of the box under the action of gravity, and lighter particles rise with the water flow, achieving effective separation.

[0022] The automatic control of the drainage pipe and electric valve arranged around the side of the sedimentation box can realize the automatic discharge of the supernatant and improve the sedimentation efficiency.

[0023] Continuous filtration:

[0024] The filter disc switching mechanism can prevent excessive accumulation of impurities on the filter disc, ensure the consistency of the filtration effect and improve the filtration efficiency.

[0025] Biodegradation:

[0026] The biodegradable net or biological filler installed in the degradation box further degrades the organic matter in the sewage through the action of microorganisms, thereby improving the water purification effect.

[0027] The design of multiple degradation boxes allows them to be placed one by one for continuous degradation, which increases the degradation time and improves the degradation efficiency. At the same time, the number of degradation boxes can be adjusted as needed to adapt to different treatment requirements.

[0028] Flocculant addition:

[0029] The flocculant is pumped into the sedimentation tank through a booster pump to promote the coagulation of suspended matter in the sewage into larger flocs, which is convenient for subsequent sedimentation and separation.

[0030] The setting of the spray head can increase the contact area between the flocculant and sewage and enhance the flocculation effect.

[0031] Convenient maintenance:

[0032] The cleaning port design on the sedimentation box and degradation box facilitates regular cleaning of the box to prevent dirt accumulation that affects the treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the top view of the structure of the utility model;

[0034] Figure 2 This is a schematic diagram of the structure of the filter disc of the utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the sedimentation box of the utility model;

[0036] Figure 4 This is a schematic diagram of the rear structure of the degradation box of the utility model;

[0037] Figure 5 This is a schematic diagram of the cross-sectional structure of the degradation box of the utility model;

[0038] In the figure: 1. Base; 2. Frame; 3. Bracket; 4. Rotating motor; 5. Ring frame; 6. Filter frame; 7. Partition plate; 8. Sedimentation box; 9. Medicine box; 10. Booster pump; 11. Drain pipe; 12. Electric valve; 13. Filter plate; 14. Filter screen; 15. Medicine delivery tube; 16. Spray head; 17. Sealing plate; 18. Degradation box: 19. Degradation frame; 20. Biodegradable net. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] See also Figure 1-5 The dust removal water treatment device based on the circulation of converter dust removal water of the present invention includes a sedimentation box 8, a filtering mechanism and a degradation box 18. The filtering mechanism includes a base 1, a rotating motor 4, a frame 2 and a filter frame 6. The sides of the base 1 are symmetrically provided with brackets 3. The top of the bracket 3 is fixedly installed with an annular frame 5. The frame 2 is fixedly installed at the center of the base 1. The rotating motor 4 is fixedly installed on the top of the frame 2. The filter frame 6 is installed at the output end of the rotating motor 4, and the filter frame 6 is slidably installed on the annular frame 5. The filter frame 6 is symmetrically provided with filter discs 13. The sedimentation box 8 is installed on the base 1 and is located below the filter disc 13. The sedimentation box 8 is a semicircular cylindrical structure. Several drain pipes 11 are arranged around the sides of the sedimentation box 8. The degradation box 18 is provided with several. The drain pipes 11 are connected with the degradation box 18 through a conduit, and an electric valve 12 is provided on the drain pipe 11.

[0041] The preferred solution of the above-mentioned dust removal water treatment device based on the recycling of converter dust removal water is:

[0042] Flocculant addition system:

[0043] Working principle:

[0044] A medicine box 9 is fixedly mounted on the outer wall of the sedimentation box 8 , and flocculant is stored in the medicine box 9 .

[0045] A booster pump 10 is installed on the top of the medicine box 9 . The input end of the booster pump 10 is connected to the medicine box 9 through a medicine inlet pipe, and the output end is connected to the sedimentation box 8 through a medicine delivery pipe 15 .

[0046] The booster pump 10 pumps the flocculant in the medicine box 9 into the sedimentation tank 8 through the medicine delivery tube 15 to promote the coagulation of suspended matter in the sewage into larger flocs, which is convenient for subsequent sedimentation and separation.

[0047] Further preferred:

[0048] A spray head 16 is installed at the end of the drug delivery tube 15, and the flocculant is evenly dispersed into the sedimentation tank 8 through the spray head 16, thereby increasing the contact area between the flocculant and the sewage and enhancing the flocculation effect.

[0049] Filtration system:

[0050] Working principle:

[0051] The filter frame 6 is provided with a partition plate 7 , and the filter disc 13 is provided with a side frame, which is overlapped on the filter frame 6 and the partition plate 7 .

[0052] A filter screen 14 is provided at the bottom of the filter disc 13 for intercepting and filtering large suspended particles in the sewage.

[0053] The combination of the filter screen 14 and the side frame can effectively remove larger particles in the sewage, reducing the burden on subsequent treatment units.

[0054] Further preferred:

[0055] The side frame of the filter disc 13 can be easily disassembled and replaced, making it easy to regularly clean or replace the filter screen 14 to ensure the filtering effect.

[0056] Biodegradable system:

[0057] Working principle:

[0058] Several layers of degradation racks 19 are provided inside the degradation box 18 , and biodegradable nets 20 are provided on the degradation racks 19 .

[0059] Microorganisms capable of degrading organic matter are attached to the biodegradable net 20 , and the organic matter in the sewage is degraded into harmless substances through the life activities of the microorganisms.

[0060] Further preferred:

[0061] The inner wall of the degradation box 18 is provided with a plurality of slide grooves, and the sides of the degradation rack 19 are slidably connected to the slide grooves, so as to facilitate adjustment of the position of the degradation rack 19 and optimize the biodegradation effect.

[0062] The provision of the degradation rack 19 can increase the surface area of ​​the biodegradable net 20 and improve the biodegradation efficiency.

[0063] Cleaning the system:

[0064] Working principle:

[0065] Both the sedimentation tank 8 and the degradation tank 18 are provided with cleaning ports, each of which is provided with a sealing plate 17 .

[0066] The sealing plate 17 is penetrated by fixing bolts, which penetrate the sealing plate 17 through a threaded structure and are connected to the sedimentation box 8 and the degradation box 18 .

[0067] By opening the sealing plate 17, the interior of the sedimentation tank 8 and the degradation tank 18 can be cleaned regularly to prevent accumulation of dirt that affects the treatment effect.

[0068] Further preferred:

[0069] The design of the sealing plate 17 can ensure the sealing of the equipment during normal operation, prevent sewage leakage, and facilitate maintenance and cleaning.

[0070] The working principle of the dust removal water treatment device based on the recycling of converter dust removal water is summarized as follows:

[0071] Design of sedimentation tank 8:

[0072] structure:

[0073] The sedimentation tank 8 is mounted on the base 1 and is located below the filter disc 13 .

[0074] The sedimentation tank 8 is a semicircular cylindrical structure, and a plurality of drainage pipes 11 are arranged around its side.

[0075] Working principle:

[0076] The sewage filtered by the filter disc 13 flows into the sedimentation tank 8.

[0077] Under the action of gravity, larger particles in the sewage in the sedimentation tank 8 will settle to the bottom of the tank, while lighter particles will rise with the water flow.

[0078] The drain pipe 11 on the side of the sedimentation tank 8 is used to discharge the supernatant after the preliminary sedimentation treatment.

[0079] The drain pipe 11 is provided with an electric valve 12, which can automatically control the opening and closing of the drain pipe 11 through a control system to adjust the drainage volume and drainage time.

[0080] Design of filter mechanism:

[0081] structure:

[0082] The filtering mechanism includes a base 1 , a rotating motor 4 , a frame 2 and a filtering frame 6 .

[0083] Brackets 3 are symmetrically provided on the sides of the base 1 , and a ring frame 5 is fixedly installed on the top of the brackets 3 .

[0084] The frame 2 is fixedly mounted at the center of the base 1 , and the rotating motor 4 is fixedly mounted on the top of the frame 2 .

[0085] The filter frame 6 is mounted on the output end of the rotating motor 4 and is slidably mounted on the annular frame 5 .

[0086] Filter discs 13 are symmetrically arranged on the filter frame 6 .

[0087] Working principle:

[0088] The rotating motor 4 drives the filter frame 6 to rotate on the annular frame 5 .

[0089] The filter disc 13 filters the sewage to remove large suspended solids therein.

[0090] The filtered sewage passes through the filter disc 13 and falls into the sedimentation tank 8 below.

[0091] The rotation of the filter disc 13 can prevent excessive impurities from accumulating on the filter disc 13 while ensuring the consistency of the filtering effect.

[0092] When too many impurities accumulate on the filter disc 13 on one side of the filter rack 6, the filter rack 6 is driven to rotate on the annular rack 5 by the rotating motor 4, the filter disc 13 is switched, and the filter disc 13 with accumulated impurities is rotated to the outside of the sedimentation box 8, and the filter disc 13 with accumulated impurities is cleaned.

[0093] Design of degradation box 18:

[0094] structure:

[0095] A plurality of degradation boxes 18 are provided, and the drain pipe 11 is connected to the degradation boxes 18 through a conduit.

[0096] Working principle:

[0097] The supernatant after preliminary treatment in the sedimentation tank 8 enters the degradation tank 18 through the drain pipe 11 and the conduit. There are multiple degradation tanks 18. When the sedimentation tank 8 discharges the supernatant into the degradation tank 18, it can be discharged into the degradation tank 18 one by one by switching the electric valve 12, so that the supernatant in the degradation tank 18 has sufficient degradation time. An outlet pipe can be set on the degradation tank 18, and a valve can be configured on the outlet pipe to discharge the degraded supernatant.

[0098] A biodegradable net 20 or other biological filler is provided in the degradation box 18 to further degrade organic matter in the sewage through the action of microorganisms.

[0099] The design of multiple degradation boxes 18 can improve the processing efficiency, and the number of degradation boxes 18 can be adjusted as needed to adapt to different processing requirements.

[0100] Through the above design, the device achieves effective treatment of converter dust removal water, improves the stability of water quality, reduces corrosion, scaling, mud and other problems on pipes and equipment, and realizes the recycling of water resources.

[0101] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dust removal water treatment device based on the recycling of converter dust removal water, characterized in that: The invention comprises a sedimentation box (8), a filtering mechanism and a degradation box (18); the filtering mechanism comprises a base (1), a rotating motor (4), a frame (2) and a filtering frame (6); the sides of the base (1) are symmetrically provided with a frame (3); the top of the frame (3) is fixedly mounted with an annular frame (5); the frame (2) is fixedly mounted at the center of the base (1); the rotating motor (4) is fixedly mounted on the top of the frame (2); the filtering frame (6) is mounted at the output end of the rotating motor (4); and the filtering frame (6) is slidably mounted on the annular frame (5), a filter disc (13) is symmetrically arranged on the filter frame (6), the sedimentation box (8) is mounted on the base (1) and is located below the filter disc (13), the sedimentation box (8) is a semicircular cylindrical structure, a plurality of drain pipes (11) are arranged around the side of the sedimentation box (8), and the degradation box (18) is provided with a plurality of drain pipes (11), the drain pipes (11) are connected to the degradation box (18) through a conduit, and an electric valve (12) is provided on the drain pipe (11).

2. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 1 is characterized in that: A medicine box (9) is fixedly mounted on the outer wall of the sedimentation tank (8), wherein flocculant is stored in the medicine box (9). A rear booster pump (10) is mounted on the top of the medicine box (9), wherein the input end of the booster pump (10) is connected to the medicine box (9) via a medicine inlet pipe, and the output end of the booster pump (10) is connected to the sedimentation tank (8) via a medicine delivery pipe (15).

3. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 2 is characterized in that: A spray head (16) is installed at the end of the medicine delivery tube (15).

4. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 3 is characterized in that: The filter frame (6) is provided with a partition plate (7), the filter disc (13) is provided with a side frame, the side frame is overlapped on the filter frame (6) and the partition plate (7), and the bottom of the filter disc (13) is provided with a filter screen (14).

5. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 4 is characterized in that: The degradation box (18) is also provided with several layers of degradation racks (19) inside, and the degradation racks (19) are provided with biodegradable nets (20).

6. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 5 is characterized in that: The sedimentation box (8) and the degradation box (18) are both provided with cleaning ports, and both cleaning ports are provided with sealing plates (17). The sealing plates (17) are penetrated by fixing bolts, and the fixing bolts penetrate the sealing plates (17) through threaded structures and are connected to the sedimentation box (8) and the degradation box (18).

7. The dust removal water treatment device based on the recycling of converter dust removal water according to claim 6 is characterized in that: The inner wall of the degradation box (18) is provided with a plurality of layers of slide grooves, and the sides of the degradation rack (19) are slidably connected to the slide grooves.

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