Denitrification reactor for wastewater treatment

Abstract

The utility model belongs to wastewater treatment technical field, concretely relates to a kind of denitrification reactor for wastewater treatment, including reaction kettle, the upper end of the reaction kettle is fixedly connected with import, the lower end of the reaction kettle is fixedly connected with export, the upper end left side of the reaction kettle is fixedly connected with water feeder, the inside upper end of the water feeder is fixedly connected with elastic plate, the upper end left side of the reaction kettle and the right side lower end of water feeder are respectively provided with through slot, the inside fixed connection of the through slot has filter screen, the lower end of water feeder is connected with the upper end of collection tank by connecting pipe, to facilitate the dirt that the filter screen filters is discharged and is conveyed to the inside of collection tank, to reach the effect of collecting dirt, avoid dirt to be accumulated in the left side of filter screen and block filter screen and contaminated wastewater, by ear plate telescopic link and sleeve ring, the upper end of sleeve ring is connected with bellow and sampling pipe, to be driven bellow to contract and stretch work under the telescopic of telescopic link.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, specifically a denitrification reactor for wastewater treatment. Background Technology

[0002] Wastewater treatment utilizes physical, chemical, and biological methods to purify wastewater, reduce pollution, and ultimately achieve wastewater recycling and reuse, fully utilizing water resources. With the continuous improvement of rural sewage pipe networks and the separation of rainwater and sewage, the concentration of domestic sewage in rural areas is constantly increasing, including the concentration of nitrogenous pollutants. Integrated sewage treatment devices are no longer sufficient to ensure stable compliance with total nitrogen standards in effluent. Substandard effluent discharged directly into water bodies exacerbates eutrophication. Therefore, effective removal of total nitrogen from wastewater is necessary to achieve compliant discharge. To enhance the removal of nitrogenous pollutants from wastewater, research on efficient and stable biological denitrification technologies has become a hot topic of discussion.

[0003] According to patent authorization announcement number CN218810821U, a pressure denitrification reactor and system are disclosed. The pressure denitrification reactor includes a tank with an inlet at the bottom. A filter media layer and filter plates are arranged inside the tank, with the filter media layer above the filter plates. An air inlet and an outlet are located on the side wall of the tank, with the air inlet below the filter plates and the outlet above the filter media layer. An air outlet with an automatic exhaust valve is located at the top of the tank. The pressure denitrification system includes several pressure denitrification reactors connected in series via connecting pipes. The outlets of all pressure denitrification reactors are simultaneously connected to a backwash outlet pipe. A front water pipe is connected to the inlet of the first pressure denitrification reactor, and backwash inlet pipes are simultaneously connected to the inlets of the remaining pressure denitrification reactors. This invention is small in size, simple in structure, and low in cost. It can operate under a large inlet-outlet water pressure difference, and the uniformity of water distribution within the filter tank is easily ensured.

[0004] However, in existing denitrification reactors, the scale generated during wastewater filtration is mostly directly accumulated on the upper part of the filter screen. The large amount of scale accumulation not only easily leads to re-contamination of the wastewater, but also easily clogs the filter screen mesh, affecting the filtration effect of the wastewater. At the same time, existing sampling devices are mostly fixed, and can only sample wastewater at fixed locations, not at different locations, thus affecting the detection effect and making it difficult to sample and test water at different locations. Utility Model Content

[0005] The purpose of this invention is to provide a denitrification reactor for wastewater treatment, which solves the problems of collecting and discharging fouling and setting up sampling devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a denitrification reactor for wastewater treatment, comprising a reactor, an inlet fixedly connected to the upper end of the reactor, an outlet fixedly connected to the lower end of the reactor, a water inlet fixedly connected to the upper left side of the reactor, a spring plate fixedly connected to the upper inside of the water inlet, through grooves respectively opened on the upper left side of the reactor and the lower right side of the water inlet, a filter screen fixedly connected inside the through grooves, a sludge collection mechanism provided on the upper left side of the reactor, and a sampling mechanism provided on the upper right side of the reactor.

[0007] Preferably, the sludge collection mechanism includes a sludge collection box, which is fixedly connected to the upper left side of the reactor, and a filter screen is fixedly connected to the lower right side of the sludge collection box.

[0008] Preferably, a drain pipe is fixedly connected to the lower left side of the sludge collection box, and a bend pipe is fixedly connected to the lower right side of the sludge collection box. The right side of the bend pipe is fixedly connected to the upper left side of the reactor.

[0009] Preferably, a connecting pipe is fixedly connected to the upper right side of the sludge collection box, and an inclined block is fixedly connected to the upper left side of the inner side of the connecting pipe. The upper end of the connecting pipe is fixedly connected to the lower right side of the water inlet.

[0010] Preferably, the sampling mechanism includes a cover, with the cover fixedly connected to the upper right side of the reactor and a sampling tube fixedly connected to the left side of the cover.

[0011] Preferably, a corrugated pipe is fixedly connected to the lower end of the sampling tube, a collar is fixedly connected to the lower end of the corrugated pipe, an ear plate is fixedly connected to the right side of the collar, a telescopic rod is fixedly connected to the upper end of the ear plate, and the upper end of the telescopic rod is fixedly connected to the upper right side of the cover.

[0012] Preferably, a corrugated sleeve is fixedly connected to the upper end of the ear plate, the upper end of the corrugated sleeve is fixedly connected to the lower right side of the cover, and the telescopic rod is disposed inside the corrugated sleeve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model connects the lower end of the water inlet to the upper end of the sludge collection tank via a connecting pipe, thereby facilitating the discharge and transportation of the dirt filtered out by the filter screen into the interior of the sludge collection tank, thus achieving the effect of collecting dirt and preventing dirt from accumulating on the left side of the filter screen and clogging the filter screen and polluting the wastewater.

[0015] 2. This utility model uses a telescopic rod and a collar, with the upper end of the collar connected to a corrugated pipe and a sampling pipe. Under the extension and retraction of the telescopic rod, the corrugated pipe is driven to contract and stretch. Thus, the collar can draw wastewater at any height inside the reactor through the corrugated pipe. The wastewater is then taken out through the sampling pipe and the corrugated pipe, thereby achieving the effect of sampling wastewater at different locations. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model has a partial three-dimensional structure. Figure 1 ;

[0018] Figure 3 This utility model has a partial three-dimensional structure. Figure 2 ;

[0019] Figure 4 This utility model has a partial three-dimensional structure. Figure 3 ;

[0020] Figure 5 This is a partial sectional view of the overall structure of this utility model.

[0021] In the diagram: 1. Reactor, 2. Inlet, 3. Outlet, 4. Water inlet, 5. Spring plate, 6. Through groove, 7. Filter screen, 8. Sludge collection mechanism, 9. Sampling mechanism, 81. Sludge collection box, 82. Filter screen, 83. Sludge discharge pipe, 84. Bend, 85. Connecting pipe, 86. Inclined block, 91. Cover, 92. Sampling tube, 93. Corrugated pipe, 94. Collar, 95. Ear plate, 96. Telescopic rod, 97. Corrugated sleeve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 5A denitrification reactor for wastewater treatment includes a reactor 1. Other working properties and functions of the reactor 1 are existing technologies. This technical solution only improves upon the deficiencies of the existing technologies mentioned in the background art, and will not be elaborated further in this technical solution. An inlet 2 is fixedly connected to the upper end of the reactor 1. The inlet 2 and outlet 3 are existing technologies, and will not be elaborated further in this technical solution. An outlet 3 is fixedly connected to the lower end of the reactor 1. A water inlet 4 is fixedly connected to the upper left side of the reactor 1. A spring plate 5 is fixedly connected to the upper interior of the water inlet 4. The spring plate 5 blocks the discharged wastewater, preventing it from directly falling and impacting the lower interior of the water inlet 4, thus protecting the lower interior of the water inlet 4 from impact damage. A through-slot 6 is provided on the upper left side of the reactor 1 and the lower right side of the water inlet 4, respectively. A filter screen 7 is fixedly connected inside the through-slot 6. The filter screen 7 is inclined to reduce the probability of dirt adhesion. A dirt collection mechanism 8 is provided on the upper left side of the reactor 1, and a sampling mechanism 9 is provided on the upper right side of the reactor 1.

[0024] Please see Figure 1 , Figure 3 , Figure 4 , Figure 5 The sludge collection mechanism 8 includes a sludge collection tank 81. The sludge collection tank 81 is fixedly connected to the upper left side of the reactor 1. A filter screen 82 is fixedly connected to the lower right side of the inside of the sludge collection tank 81. A drain pipe 83 is fixedly connected to the lower left side of the sludge collection tank 81, facilitating the discharge of sludge from inside the sludge collection tank 81. A bent pipe 84 is fixedly connected to the lower right side of the sludge collection tank 81. An inclined block 86 is used to block the sludge discharged into the sludge collection tank 81, preventing it from floating back into the water inlet 4. Inside, the upper end of the bend 84 is blocked by the filter screen 82 to prevent dirt from flowing into the reactor 1 through the bend 84. The right side of the bend 84 is fixedly connected to the upper left side of the reactor 1. The bend 84 facilitates the discharge of wastewater flowing into the sludge collection tank 81 into the reactor 1. The upper right side of the sludge collection tank 81 is fixedly connected to the connecting pipe 85. The upper left side of the connecting pipe 85 is fixedly connected to the inclined block 86. The upper end of the connecting pipe 85 is fixedly connected to the lower right side of the water inlet 4.

[0025] Please see Figure 1 , Figure 2 , Figure 5The sampling mechanism 9 includes a cover 91. The cover 91 is fixedly connected to the upper right side of the reactor 1. A sampling tube 92 is fixedly connected to the left side of the cover 91. A bellows 93 is fixedly connected to the lower end of the sampling tube 92. A collar 94 is fixedly connected to the lower end of the bellows 93. The bellows 93 facilitates the transport and movement of the collar 94. An ear plate 95 is fixedly connected to the right side of the collar 94. A telescopic rod 96 is fixedly connected to the upper end of the ear plate 95. The upper end of the telescopic rod 96 is fixedly connected to the cover 91. On the upper right side, a corrugated sleeve 97 is fixedly connected to the upper end of the ear plate 95. The corrugated sleeve 97 is used to wrap and protect the telescopic rod 96. The upper end of the corrugated sleeve 97 is fixedly connected to the lower right side of the cover 91. The telescopic rod 96 is located inside the corrugated sleeve 97. The telescopic rod 96 is model YNT-03. The plug of the telescopic rod 96 is connected to an external power supply, which is existing technology. The opening and closing of each drain and water inlet joint in this technical solution is controlled by a switch in the existing technology.

[0026] The specific implementation process of this utility model is as follows: In use, wastewater is transported to the inside of the inlet 4 through the inlet connector at the upper end of the inlet 4. Then, the wastewater impacts the spring plate 5 and splashes onto the inner wall of the inlet 4. Then, it flows down to the lower end of the inside of the inlet 4 and is filtered through the filter screen 7. Then, the dirt falls into the connecting pipe 85 and is collected in the inside of the sludge collection tank 81, thereby achieving the effect of sludge collection. When it is necessary to discharge the wastewater inside the sludge collection tank 81, the bend pipe 84 is opened to allow the wastewater to be discharged into the inside of the reactor 1. When it is necessary to take a sample, the telescopic rod 96 is activated. Then, the telescopic rod 96 can drive the collar 94 to move up and down, thereby stretching and compressing the bellows 93. When the appropriate position is reached, the control switch inside the collar 94 can be opened (this is the prior art, and this technical solution will not be described in detail). Then, the sampling work can be carried out through the sampling pipe 92, the bellows 93 and the collar 94 using the prior art.

[0027] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A denitrification reactor for wastewater treatment, comprising a reaction vessel (1), characterized in that: An inlet (2) is fixedly connected to the upper end of the reactor (1), and an outlet (3) is fixedly connected to the lower end of the reactor (1). A water inlet (4) is fixedly connected to the upper left side of the reactor (1), and a spring plate (5) is fixedly connected to the upper inside of the water inlet (4). A through groove (6) is opened on the upper left side of the reactor (1) and the lower right side of the water inlet (4). A filter screen (7) is fixedly connected inside the through groove (6). A dirt collection mechanism (8) is provided on the upper left side of the reactor (1), and a sampling mechanism (9) is provided on the upper right side of the reactor (1). The sampling mechanism (9) includes a cover (91). A water inlet (2) is fixedly connected to the upper right side of the reactor (1). A cover (91) is attached. A sampling tube (92) is fixedly connected to the left side of the cover (91). A corrugated tube (93) is fixedly connected to the lower end of the sampling tube (92). A collar (94) is fixedly connected to the lower end of the corrugated tube (93). An ear plate (95) is fixedly connected to the right side of the collar (94). A telescopic rod (96) is fixedly connected to the upper end of the ear plate (95). The upper end of the telescopic rod (96) is fixedly connected to the upper right side of the cover (91). A corrugated sleeve (97) is fixedly connected to the upper end of the ear plate (95). The upper end of the corrugated sleeve (97) is fixedly connected to the lower right side of the cover (91). The telescopic rod (96) is located inside the corrugated sleeve (97).

2. The denitrification reactor for wastewater treatment according to claim 1, characterized in that: The sludge collection mechanism (8) includes a sludge collection box (81). The sludge collection box (81) is fixedly connected to the upper left side of the reactor (1), and a filter screen (82) is fixedly connected to the lower right side inside the sludge collection box (81).

3. A denitrification reactor for wastewater treatment according to claim 2, characterized in that: The lower left end of the sludge collection box (81) is fixedly connected to a drain pipe (83), and the lower right end of the sludge collection box (81) is fixedly connected to a bend pipe (84). The right side of the bend pipe (84) is fixedly connected to the upper left end of the reactor (1).

4. A denitrification reactor for wastewater treatment according to claim 2, characterized in that: The upper right side of the sludge collection box (81) is fixedly connected to a connecting pipe (85), and the upper left side of the inner side of the connecting pipe (85) is fixedly connected to an inclined block (86). The upper end of the connecting pipe (85) is fixedly connected to the lower right side of the water inlet (4).

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