Sewage nitrogen and phosphorus removal advanced treatment equipment

Abstract

The utility model discloses sewage nitrogen and phosphorus removal advanced treatment equipment. The device comprises a treatment box, a purification structure, a drainage head and a box cover, the purification structure is arranged in the treatment box; the purification structure comprises an insertion groove formed in the inner wall of the treatment box, a biological adsorption insertion plate inserted into the inner wall of the insertion groove, a mounting groove formed in the top of the biological adsorption insertion plate, a rotating rod inserted into the bottom of the mounting groove, a cleaning handle welded to the outer wall of the rotating rod, a blade welded to one end of the rotating rod and a fixing piece connected into the mounting groove through a screw. Sewage sequentially passes through the biological adsorption insertion plates and then adsorbs nitrogen and phosphorus to form adsorption sediments, the sewage pushes the blades to drive the rotating rod to rotate when being discharged from the drainage head, and the sweeping handle rotates to sweep the nitrogen and phosphorus adsorption sediments, so that the effect of adsorbing and sweeping at the same time is achieved; the biological adsorption insertion plate does not need to be regularly disassembled for cleaning and adsorbing sediments, so that the adsorption efficiency and the purification effect of the biological adsorption insertion plate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to sewage denitrification and dephosphorization deep treatment equipment. Background Art

[0002] Dealing with the removal of nitrogen and phosphorus in sewage treatment systems is an important task to ensure that the water environment quality meets standards. Chemical precipitation and biological adsorption are usually used to purify nitrogen and phosphorus in sewage. The chemical precipitation method uses chemical substances to react with nitrogen and phosphorus to form insoluble precipitates to remove phosphorus and nitrogen from the water. The biological adsorption method uses microorganisms or adsorbents for biological adsorption to fix nitrogen and phosphorus on biological substances or adsorbents, and remove them by precipitation or filtration. However, since chemical methods may cause secondary pollution during treatment and are costly, they are still used in certain specific cases, and biological adsorption is more often used for treatment.

[0003] Existing devices using biological adsorption methods treat sewage by using biological adsorption plates to adsorb nitrogen and phosphorus elements in a treatment box. After a period of adsorption, the box needs to be opened to remove the adsorbed substances to ensure the adsorption efficiency and purification quality of the biological adsorption plates. However, this method requires regular cleaning, which is cumbersome, and the adsorption efficiency decreases with the adsorption thickness, resulting in poor overall sewage purification effect and efficiency. Therefore, a device that can improve the purification effect and efficiency is needed. Utility Model Content

[0004] The utility model aims to provide a sewage denitrification and dephosphorization deep treatment equipment to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A sewage deep treatment device for nitrogen and phosphorus removal comprises: a treatment box, a purification structure, a drainage head and a box cover; the purification structure is arranged inside the treatment box, and the purification structure comprises a slot opened on the inner wall of the treatment box, a biological adsorption plug plate plugged into the inner wall of the slot, a mounting slot opened on the top of the biological adsorption plug plate, a rotating rod plugged into the bottom of the mounting slot, a cleaning handle welded to the outer wall of the rotating rod, a blade welded to one end of the rotating rod and a fixing part connected to the inside of the mounting slot by screws; the drainage head is welded to the outer wall of the treatment box, and one end of the rotating rod with the blade is located inside the drainage head; the box cover is connected to the top of the treatment box by bolts.

[0007] Preferably, a sewage discharge structure is provided at the bottom of the treatment box, and the sewage discharge structure includes a funnel groove welded to the bottom of the treatment box, a sewage discharge pipe welded to the bottom of the treatment box, and a sewage discharge valve welded between the funnel groove and the sewage discharge pipe.

[0008] Preferably, the inner wall of the treatment box is provided with four groups of slots and biological adsorption plug-ins, the rotating rod is horizontally inserted into the mounting slot of each biological adsorption plug-in plate, and three groups of cleaning handles are provided on one side of each group of biological adsorption plug-ins.

[0009] Preferably, four groups of the funnel grooves are welded, and the four groups of the funnel grooves are respectively located at the bottom of four groups of biological adsorption plug plates.

[0010] Preferably, an inlet head is welded to the outer wall of the treatment box, and four groups of drain valves are welded to the top of the drain valve. The four groups of drain valves are respectively connected to the corresponding funnel grooves, and the diameter of the drain valve close to the water inlet head is larger than the diameters of the other three groups of drain valves.

[0011] Preferably, a sealing ring is embedded in the top of the processing box, and the lower surface of the box cover is pressed on the top of the biological adsorption plug plate.

[0012] Preferably, the adsorption surface of the biological adsorption plug plate is designed to be circular, and the length of the cleaning handle is the same as the radius of the adsorption surface.

[0013] Preferably, a guide platform is provided inside the processing box near one end of the drainage head, and two sets of blades are provided at one end of the rotating rod.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) After the sewage passes through the biological adsorption plug plate in sequence, it will adsorb nitrogen and phosphorus to form adsorption sediment. When the sewage is discharged from the drainage head, it pushes the blade to drive the rotating rod to rotate, so that the cleaning handle rotates to sweep away the adsorbed nitrogen and phosphorus sediments, thereby achieving the effect of adsorption and cleaning at the same time. There is no need to regularly disassemble the biological adsorption plug plate to clean the adsorption sediment, which improves the adsorption efficiency and purification effect of the biological adsorption plug plate;

[0016] (2) By installing a funnel tank at the bottom of the treatment box, the adsorbed sediment accumulated in the funnel tank can be discharged from the drain pipe using a drain valve, so as to quickly clean the adsorbed sediment and avoid the problem of stopping the equipment to clean the biological adsorption plug plate. This improves the purification efficiency of the equipment during continuous operation, reduces the labor intensity of workers, and makes the purification of sewage more convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a schematic diagram of the overall structure of a sewage denitrification and phosphorus removal deep treatment device according to an embodiment of the utility model;

[0019] Figure 2 It is a cross-sectional view of the internal structure of the processing box according to an embodiment of the utility model;

[0020] Figure 3 It is a schematic diagram of the purification structure according to an embodiment of the utility model;

[0021] Figure 4 It is a partial exploded view of the purification structure according to the embodiment of the utility model;

[0022] Figure 5 It is an exploded view of the overall structure of the sewage denitrification and phosphorus removal deep treatment equipment according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Treatment box; 2. Purification structure; 201. Slot; 202. Biosorption plug-in plate; 203. Mounting slot; 204. Rotating rod; 205. Cleaning handle; 206. Blade; 207. Fixing part; 3. Sewage discharge structure; 301. Funnel slot; 302. Sewage discharge pipe; 303. Sewage discharge valve; 4. Water inlet head; 5. Drain head; 6. Sealing ring; 7. Box cover. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The following is combined with Figure 1-5 The utility model is described in further detail.

[0027] Embodiment 1

[0028] See also Figures 1 to 5, the utility model provides an embodiment: a sewage denitrification and phosphorus removal deep treatment equipment, including: a treatment box 1, a purification structure 2, a drainage head 5 and a box cover 7, the purification structure 2 is arranged inside the treatment box 1, the purification structure 2 includes a slot 201 opened on the inner wall of the treatment box 1, a biological adsorption plug 202 plugged on the inner wall of the slot 201, a mounting slot 203 opened on the top of the biological adsorption plug 202, a rotating rod 204 inserted at the bottom of the mounting slot 203, a cleaning handle 205 welded on the outer wall of the rotating rod 204, a blade 206 welded at one end of the rotating rod 204 and a fixing part 207 connected to the inside of the mounting slot 203 by screws, the drainage head 5 is welded on the outer wall of the treatment box 1, the rotating rod 2 04 has one end with a blade 206 located inside the drainage head 5, and the box cover 7 is connected to the top of the treatment box 1 by bolts. By vertically inserting the biological adsorption plug plate 202 into the treatment box 1, and fixing the rotating rod 204 on multiple biological adsorption plug plates 202 by using the mounting groove 203 and the fixing member 207, when the sewage passes through the biological adsorption plug plates 202 in turn, it will adsorb nitrogen and phosphorus. When the sewage is discharged from the drainage head 5, it pushes the blade 206 to drive the rotating rod 204 to rotate, so that the cleaning handle 205 rotates to sweep away the sediments adsorbed by nitrogen and phosphorus, thereby achieving the effect of adsorption and cleaning at the same time, without the need to regularly disassemble the biological adsorption plug plate 202 to clean the adsorbed sediment, thereby improving the adsorption efficiency and purification effect of the biological adsorption plug plate 202.

[0029] Embodiment 2

[0030] See also Figures 1 to 5 A sewage discharge structure 3 is provided at the bottom of the treatment box 1. The sewage discharge structure 3 includes a funnel trough 301 welded to the bottom of the treatment box 1, a sewage discharge pipe 302 welded to the bottom of the treatment box 1, and a sewage discharge valve 303 welded between the funnel trough 301 and the sewage discharge pipe 302. The funnel trough 301 is installed at the bottom of the treatment box 1, and the sewage discharge valve 303 can be used to discharge the adsorbed sediment accumulated in the funnel trough 301 from the sewage discharge pipe 302, so as to achieve the effect of quickly cleaning the adsorbed sediment, avoid the problem of stopping the equipment to clean the biological adsorption plug plate 202, improve the purification efficiency of the continuous operation of the equipment, reduce the labor intensity of workers, and make the purification and treatment of sewage more convenient and labor-saving;

[0031] The inner wall of the treatment box 1 is provided with four groups of slots 201 and biological adsorption plug-in plates 202, and the rotating rod 204 is horizontally inserted into the mounting slot 203 of each biological adsorption plug-in plate 202, and three groups of cleaning handles 205 are provided on one side of each group of biological adsorption plug-in plates 202. By providing four groups of slots 201 to insert the biological adsorption plug-in plates 202, the sewage is subjected to multi-layer adsorption treatment in succession to improve the effect of the device in purifying nitrogen and phosphorus in the sewage. At the same time, each group is provided with three groups of cleaning handles 205, which can be cleaned under the adsorption action at the same time to ensure the passability of the biological adsorption plug-in plates 202 to the sewage to ensure the normal sewage purification speed. There are four groups of funnel grooves 301 welded, and the four groups of funnel grooves 301 are respectively located at the bottom of the four groups of biological adsorption plug-in plates 202. The funnel grooves 301 are respectively provided at the bottom in front of the four groups of biological adsorption plug-in plates 202 to collect and collect the adsorbed sediments that fall, so as to facilitate the unified and centralized discharge to the outside of the treatment box 1, improve the convenience of the device in cleaning the sediments, and reduce the labor intensity of cleaning the adsorbed sediments.

[0032] Embodiment 3

[0033] See also Figures 1 to 5 The outer wall of the treatment box 1 is welded with an inlet head 4, and four groups of drain valves 303 are welded on the top of the drain valve 303. The four groups of drain valves 303 are respectively connected to the corresponding funnel grooves 301, and the diameter of the drain valve 303 close to the inlet head 4 is larger than the diameter of the other three groups of drain valves 303. By setting four groups of drain valves 303, the funnel grooves 301 at the corresponding positions can be discharged separately, and different requirements can be discharged according to needs, avoiding the problem of increased sewage due to unified sewage discharge, and the first biological adsorption plug 202 that absorbs sewage first The adsorption capacity is large, and the use of a sewage valve 303 with a larger diameter than other ones can speed up the discharge of more adsorbed sediments. A sealing ring 6 is embedded in the top of the treatment box 1, and the lower surface of the box cover 7 is pressed on the top of the biological adsorption plug plate 202. By embedding the sealing ring 6 and pressing the box cover 7 firmly on the biological adsorption plug plate 202, it can prevent sewage from leaking out of the treatment box 1, and can also seal the space separated by each biological adsorption plug plate 202, so that the sewage can only enter the next space through the biological adsorption plug plate 202, thereby improving the effect of sewage purification;

[0034] The adsorption surface of the biological adsorption plug plate 202 is designed to be circular, and the length of the cleaning handle 205 is the same as the radius of the adsorption surface. By designing the adsorption surface of the biological adsorption plug plate 202 to be circular with the same cleaning range as the cleaning handle 205, the adsorption surface can be fully cleaned to ensure the sewage permeability of the biological adsorption plug plate 202. A guide platform is provided inside the treatment box 1 near one end of the drainage head 5, and two groups of blades 206 are provided at one end of the rotating rod 204. By providing the guide platform, the sewage can be concentrated from the semicircular groove at the bottom of the guide platform and discharged from the drainage head 5, thereby increasing the thrust at the drainage head 5. In conjunction with the action of the double-row blades 206, a strong thrust can be provided to rotate the rotating rod 204, thereby driving the four groups of cleaning handles 205 to operate together, ensuring the normal operation of the cleaning function.

[0035] Working principle: When in use, sewage will absorb nitrogen and phosphorus to form adsorbed sediment after passing through the biological adsorption plug plate 202 in turn. When the sewage is discharged from the drainage head 5, it pushes the blade 206 to drive the rotating rod 204 to rotate, so that the cleaning handle 205 rotates to sweep away the adsorbed nitrogen and phosphorus sediments, thereby achieving the effect of adsorption and cleaning at the same time. The swept adsorbed sediment will fall and accumulate in the funnel groove 301 at the bottom for collection. After a period of time, it can be uniformly discharged from the sewage pipe 302 by opening the sewage valve 303 at the bottom, so as to achieve the effect of quickly cleaning the adsorbed sediment, avoid the problem of stopping the equipment to clean the biological adsorption plug plate 202, and improve the purification efficiency of the continuous operation of the equipment.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention.

Claims

1. A sewage denitrification and phosphorus removal deep treatment equipment, characterized in that: include: A treatment box (1), a purification structure (2), a drainage head (5) and a box cover (7), wherein the purification structure (2) is arranged inside the treatment box (1), and the purification structure (2) comprises a slot (201) opened on the inner wall of the treatment box (1), a biological adsorption plug plate (202) plugged into the inner wall of the slot (201), a mounting slot (203) opened on the top of the biological adsorption plug plate (202), a rotating rod (204) plugged into the bottom of the mounting slot (203), a cleaning handle (205) welded to the outer wall of the rotating rod (204), a blade (206) welded to one end of the rotating rod (204) and a fixing member (207) connected to the inside of the mounting slot (203) by screws; the drainage head (5) is welded to the outer wall of the treatment box (1), and one end of the rotating rod (204) with the blade (206) is located inside the drainage head (5); the box cover (7) is connected to the top of the treatment box (1) by bolts.

2. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 1 is characterized by: A sewage discharge structure (3) is provided at the bottom of the treatment box (1), and the sewage discharge structure (3) comprises a funnel groove (301) welded to the bottom of the treatment box (1), a sewage discharge pipe (302) welded to the bottom of the treatment box (1), and a sewage discharge valve (303) welded between the funnel groove (301) and the sewage discharge pipe (302).

3. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 1 is characterized by: The inner wall of the treatment box (1) is provided with four groups of slots (201) and biological adsorption plug-ins (202), the rotating rod (204) is horizontally inserted into the mounting slot (203) of each biological adsorption plug-in plate (202), and three groups of cleaning handles (205) are provided on one side of each group of biological adsorption plug-ins (202).

4. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 2 is characterized by: Four groups of the funnel grooves (301) are welded, and the four groups of the funnel grooves (301) are respectively located at the bottom of four groups of biological adsorption plug plates (202).

5. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 2 is characterized by: An inlet head (4) is welded to the outer wall of the treatment box (1), and four groups of sewage discharge valves (303) are welded to the top of the sewage discharge valve (303). The four groups of sewage discharge valves (303) are respectively connected to the corresponding funnel grooves (301), and the diameter of the sewage discharge valve (303) close to the water inlet head (4) is larger than the diameters of the other three groups of sewage discharge valves (303).

6. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 1 is characterized by: A sealing ring (6) is embedded in the top of the processing box (1), and the lower surface of the box cover (7) is pressed on the top of the biological adsorption plug plate (202).

7. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 1 is characterized by: The adsorption surface of the biological adsorption plug plate (202) is designed to be circular, and the length of the cleaning handle (205) is the same as the radius of the adsorption surface.

8. The sewage denitrification and phosphorus removal deep treatment equipment according to claim 1 is characterized by: A guide platform is provided inside the processing box (1) at one end close to the drainage head (5), and two groups of blades (206) are provided at one end of the rotating rod (204).

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