Domestic sewage denitrification device

Abstract

The utility model discloses a domestic sewage denitrification device and relates to sewage treatment. The nitrogen removal device comprises a nitrogen removal treatment barrel and is characterized by further comprising lifting cleaning mechanisms, a filter screen adsorption mechanism, a medicament box, a water inlet pipe, a water outlet pipe, a medicament adding pipe and a fixed support, the nitrogen removal treatment barrel is installed on the fixed support, and the lifting cleaning mechanisms are arranged on the left side and the right side of the upper end of the nitrogen removal treatment barrel. The filter screen adsorption mechanism is arranged above the denitrification treatment barrel, the medicament box is mounted on the side wall of the denitrification treatment barrel, and the medicament adding pipe is fixed at the upper end of the medicament box; and the lower end of the other side of the denitrification treatment barrel is fixedly connected with a drainage pipe. According to the device, the liftable cleaning mechanism is arranged, the two rotating lead screws are controlled to rotate through the two motors respectively, the lifting sliding block is driven to move in the vertical direction, in the upward moving process of the lifting sliding block, the filtering ring moves upwards along with the lifting sliding block, and when the filtering ring moves to the position above the denitrification treatment barrel, the filtering net is adsorbed through the filtering net adsorption mechanism.

Description

Technical Field

[0001] The utility model relates to sewage treatment, in particular to a domestic sewage denitrification device with a filter screen having a reasonable position and convenient cleaning of adhered impurities. Background Art

[0002] Domestic sewage denitrification refers to the process of removing nitrogen compounds from domestic sewage through a series of chemical and biological treatment processes. Nitrogen compounds in domestic sewage mainly exist in the form of ammonia nitrogen and organic nitrogen. If these nitrogen compounds are not properly treated and directly discharged into the water environment, they will cause water quality deterioration, lead to eutrophication of water bodies, and even destroy the balance of natural ecosystems.

[0003] In the application number CN202223336162.1, the disclosed "A Domestic Sewage Denitrification and Phosphorus Removal Device" solves the problem that the existing sewage denitrification device cannot dredge the discharge pipe when discharging sediment, which easily causes pipe blockage. However, although a mechanism for cleaning impurities in domestic sewage is set up in this application, the method adopted is to clean the filter by pushing and scraping. However, in practice, impurities in domestic sewage may adhere to the position of the filter, and scraping cannot achieve a good cleaning effect. In addition, the filter is fixedly installed in the denitrification device, and the installation position is relatively high. When there are too many impurities in the sewage, the sewage or its impurities may overflow. Summary of the invention

[0004] The utility model aims to solve the problem that the filter screen of the current sewage treatment device is installed at a high position, is inconvenient to clean, and has a poor filtering effect. It provides a domestic sewage denitrification device with a reasonable filter screen position and convenient cleaning of adhered impurities.

[0005] The utility model of domestic sewage denitrification device comprises a denitrification treatment cylinder, which is characterized in that the denitrification device also comprises a lifting cleaning mechanism, a filter adsorption mechanism, a reagent box, a water inlet pipe, a drain pipe, a reagent adding pipe and a fixed bracket, the denitrification treatment cylinder is installed on the fixed bracket, the lifting cleaning mechanism is arranged on both sides of the upper end of the denitrification treatment cylinder, the filter adsorption mechanism is arranged above the denitrification treatment cylinder, the reagent box is arranged on the side wall of the denitrification treatment cylinder, and the reagent adding pipe is fixed on the upper end of the reagent box; the upper end of one side of the denitrification treatment cylinder is fixedly connected to the water inlet pipe, and the lower end of the other side is fixedly connected to the drain pipe; wherein:

[0006] The lifting and cleaning mechanism includes a cylinder wall bracket, a support plate, a rotating lead screw, a lifting slider and a lifting rod. The upper and lower ends of the inner side of the cylinder wall bracket are fixedly connected with support plates. The support plate at the lower end is fixedly connected to the denitrification treatment cylinder. A rotating lead screw is rotatably connected between the upper and lower support plates. A lifting slider is provided on the outer side of the rotating lead screw, and the lifting slider is threadedly connected to the rotating lead screw. The lifting rod is fixedly connected to the inner side of the lifting slider. One end of the lifting rod away from the lifting slider is fixedly connected to the upper surface of the filter ring. The filter ring is provided inside the denitrification treatment cylinder, and a filter screen is provided at the bottom of the filter ring.

[0007] The filter adsorption mechanism includes an impurity box, an impurity adsorption plate, a connecting pipe, an adsorption tube and a diagonal support plate. The impurity adsorption plate is arranged above the denitrification treatment tube. The upper surface of the impurity adsorption plate is fixedly connected with the adsorption tube. One end of the adsorption tube away from the impurity adsorption plate is fixedly connected with the connecting pipe. The other end of the connecting pipe is arranged inside the impurity box. The impurity box is fixedly connected to the outside of the denitrification treatment tube. A magnetic pump is arranged inside the impurity box, and the input end of the magnetic pump is fixedly connected to the connecting pipe.

[0008] A motor is arranged on the upper support plate, and an output end of the motor is transmission-connected to the rotating lead screw.

[0009] The inner side of the cylinder wall bracket is fixedly connected with a limiting slide rail, and the inner side of the limiting slide rail is slidably connected with a lifting slider.

[0010] The outlet end of the reagent adding pipe is arranged above the denitrification treatment cylinder.

[0011] The bending position of the connecting pipe is fixedly connected with a diagonal support plate.

[0012] The utility model provides an automatically controlled domestic sewage denitrification device, which has the following beneficial effects compared with the prior art:

[0013] 1. In the utility model, through the provided lifting cleaning mechanism, when cleaning the biological sewage impurities filtered out by the filter screen at the bottom of the filter ring, two motors are respectively used to control the rotation of two rotating screws. After the two rotating screws rotate, the lifting sliders connected to the outer threads of the two rotating screws can move in the vertical direction. In the process of the lifting slider moving up, the filter ring connected to the lifting slider through the lifting rod moves to the upper position accordingly. When the filter ring moves to the upper position of the denitrification treatment cylinder, the impurities on the surface of the filter screen can be adsorbed by the filter screen adsorption mechanism. After the impurities in the filter screen are adsorbed and cleaned, the rotating screw can be controlled by the motor to rotate in the opposite direction, so that the filter ring is lowered into the inside of the denitrification treatment cylinder to prevent subsequent sewage or impurities from overflowing from the upper part of the denitrification treatment cylinder.

[0014] 2. In the utility model, by setting up the filter adsorption mechanism, after the filter ring rises to the upper position of the denitrification treatment cylinder, the impurity adsorption plate located above the denitrification treatment cylinder generates an adsorption force under the action of the magnetic pump in the impurity box. Under the action of this adsorption force, the impurities adhered to the filter at the bottom of the filter ring can be adsorbed into the impurity box, thereby solving the problem of poor cleaning effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the rear structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the oblique upper structure of the utility model.

[0018] Figure 4 This is an enlarged view of part A.

[0019] Among them: denitrification treatment cylinder 1, lifting and cleaning mechanism 2, cylinder wall bracket 201, support plate 202, rotating screw 203, lifting slider 204, lifting rod 205, motor 206, limiting slide rail 207, filter adsorption mechanism 3, impurity box 301, impurity adsorption plate 302, connecting pipe 303, adsorption pipe 304, diagonal support plate 305, reagent box 4, water inlet pipe 5, drain pipe 6, fixed bracket 7, filter ring 8, filter screen 9, reagent adding pipe 10. DETAILED DESCRIPTION

[0020] Embodiment 1: An automatically controlled domestic sewage denitrification device comprises a denitrification treatment cylinder 1, wherein both sides of the upper end of the denitrification treatment cylinder 1 are provided with a lifting cleaning mechanism 2, wherein the lifting cleaning mechanism 2 comprises a cylinder wall bracket 201, a support plate 202, a rotating lead screw 203, a lifting slider 204 and a lifting rod 205, wherein both upper and lower ends of the inner side of the cylinder wall bracket 201 are fixedly connected with the support plate 202, the lower support plate 202 is fixedly connected with the denitrification treatment cylinder 1, and the middle of the upper and lower support plates 202 is rotatably connected with the rotating lead screw 203, and the outer side of the rotating lead screw 203 is penetrated by a lifting slider 204, and the lifting slider 204 is threadedly connected with the rotating lead screw 203, and the inner side of the lifting slider 204 is fixedly connected with the rotating lead screw 203. A lifting rod 205 is connected, and one end of the lifting rod 205 away from the lifting slider 204 is fixedly connected to the upper surface of the filter ring 8. The filter ring 8 is arranged inside the denitrification treatment cylinder 1. A filter screen 9 is arranged at the bottom of the filter ring 8. A motor 206 is arranged at the upper end of the upper support plate 202. The output end of the motor 206 is transmission-connected to the rotating screw 203. A limited slide rail 207 is fixedly connected to the inner side of the cylinder wall bracket 201. The lifting slider 204 is slidably connected to the inner side of the limited slide rail 207. It should be noted that in the process of filtering the domestic sewage, the position of the filter screen 9 should be lowered to the bottom of the water inlet pipe 5, and the sewage entering the denitrification treatment cylinder 1 from the water inlet pipe 5 is filtered by the filter screen 9 and then flows into the bottom;

[0021] During operation, when the biological sewage impurities filtered out by the filter at the bottom of the filter ring 8 need to be cleaned, the two rotating screws 203 are controlled to rotate by two motors 206 respectively. After the two rotating screws 203 rotate, the lifting slider 204 threadedly connected to the outer side of the two rotating screws 203 can move up and down in the vertical direction. In the process of the lifting slider 204 moving up, the filter ring 8 connected to the lifting slider 204 through the lifting rod 205 will move to the upper position accordingly. When the filter ring 8 moves to the upper position of the denitrification treatment cylinder 1, the impurities on the surface of the filter screen 9 can be adsorbed by the filter screen adsorption mechanism 3. After the impurities in the filter screen 9 are adsorbed and cleaned, the reverse rotation of the rotating screw can be controlled by the motor 206 to make the filter ring 8 descend to the inside of the denitrification treatment cylinder 1, thereby preventing subsequent sewage or impurities from overflowing from the top of the denitrification treatment cylinder 1.

[0022] Embodiment 2:

[0023] On the basis of Example 1, a filter adsorption mechanism 3 is arranged above the denitrification treatment cylinder 1, and the filter adsorption mechanism 3 includes an impurity box 301, an impurity adsorption disk 302, a connecting pipe 303, an adsorption tube 304 and a diagonal support plate 305. The impurity adsorption disk 302 is arranged above the denitrification treatment cylinder 1, and the upper surface of the impurity adsorption disk 302 is fixedly connected with the adsorption tube 304, and one end of the adsorption tube 304 away from the impurity adsorption disk 302 is fixedly connected with the connecting pipe 303, and the other end of the connecting pipe 303 is arranged through the inside of the impurity box 301, and the impurity box 301 is fixedly connected to the outside of the denitrification treatment cylinder 1. A magnetic pump is arranged inside the impurity box 301, and the magnetic pump is suitable for conveying liquids containing corrosive or solid particles. The specific model is ZCQ, and the input end of the magnetic pump is fixedly connected to the connecting pipe 303. A drain pipe 6 is fixedly connected to the lower end of one side of the denitrification treatment cylinder 1, and the drain pipe 6 is used to connect the sewage discharge pipe after denitrification treatment. The upper end of the other side of the denitrification treatment cylinder 1 is fixedly connected to the water inlet pipe 5, and the water inlet pipe 5 is used to connect Domestic sewage discharge pipe, a side of the denitrification treatment barrel 1 away from the impurity box 301 is fixedly connected with a medicine box 4, an upper end of the medicine box 4 is penetrated by a medicine adding pipe 10, a liquid pump is arranged inside the medicine box 4, and a controller is arranged outside the medicine box 4, which is used to realize automatic control of the liquid pump and draw chemical agents into the medicine box 4, and the liquid pump draws the chemical agents in the medicine box 4 into the denitrification treatment barrel 1 through the medicine adding pipe 10. It should be noted that the chemical agents in the medicine box 4 are specifically polyaluminum chloride PAC or polyaluminum sulfate PAS, which can promote the aggregation of suspended particles and nitrogen-containing compounds in domestic sewage, and are beneficial to the sedimentation and removal of nitrogen-containing compounds in domestic sewage. A sealed door is arranged at the bottom of the denitrification treatment barrel 1. After the treated sewage is discharged, the sealed door can be opened to discharge the sediment. The end of the medicine adding pipe 10 away from the medicine box 4 is arranged above the denitrification treatment barrel 1, and the four corners of the lower end of the denitrification treatment barrel 1 are fixedly connected with fixed brackets 7, and the bending position of the connecting pipe 303 is fixedly connected with a diagonal support plate 305;

[0024] After the filter ring 8 rises to the position above the denitrification treatment cylinder 1, the impurity adsorption plate 302 located above the denitrification treatment cylinder 1 generates an adsorption force under the action of the magnetic pump in the impurity box 301. Under the action of this adsorption force, the impurities adhered to the bottom filter screen 9 of the filter ring 8 can be adsorbed into the impurity box 301, thereby solving the problem of poor cleaning effect of the filter screen 9.

Claims

1. A domestic sewage denitrification device, comprising a denitrification treatment cylinder, characterized in that The denitrification device also includes a lifting and cleaning mechanism, a filter adsorption mechanism, a reagent box, a water inlet pipe, a drain pipe, a reagent adding pipe and a fixed bracket. The denitrification treatment cylinder is installed on the fixed bracket. The lifting and cleaning mechanism is arranged on both sides of the upper end of the denitrification treatment cylinder. The filter adsorption mechanism is arranged above the denitrification treatment cylinder. The reagent box is installed on the side wall of the denitrification treatment cylinder. The reagent adding pipe is fixed to the upper end of the reagent box; the upper end of one side of the denitrification treatment cylinder is fixedly connected to the water inlet pipe, and the lower end of the other side is fixedly connected to the drain pipe; wherein: The lifting and cleaning mechanism includes a cylinder wall bracket, a support plate, a rotating lead screw, a lifting slider and a lifting rod. The upper and lower ends of the inner side of the cylinder wall bracket are fixedly connected with support plates. The support plate at the lower end is fixedly connected to the denitrification treatment cylinder. A rotating lead screw is rotatably connected between the upper and lower support plates. A lifting slider is provided on the outer side of the rotating lead screw, and the lifting slider is threadedly connected to the rotating lead screw. The lifting rod is fixedly connected to the inner side of the lifting slider. One end of the lifting rod away from the lifting slider is fixedly connected to the upper surface of the filter ring. The filter ring is provided inside the denitrification treatment cylinder, and a filter screen is provided at the bottom of the filter ring. The filter adsorption mechanism includes an impurity box, an impurity adsorption plate, a connecting pipe, an adsorption tube and a diagonal support plate. The impurity adsorption plate is arranged above the denitrification treatment tube. The upper surface of the impurity adsorption plate is fixedly connected with the adsorption tube. One end of the adsorption tube away from the impurity adsorption plate is fixedly connected with the connecting pipe. The other end of the connecting pipe is arranged inside the impurity box. The impurity box is fixedly connected to the outside of the denitrification treatment tube. A magnetic pump is arranged inside the impurity box, and the input end of the magnetic pump is fixedly connected to the connecting pipe.

2. The domestic sewage denitrification device as claimed in claim 1, characterized in that A motor is arranged on the upper support plate, and an output end of the motor is transmission-connected to the rotating lead screw.

3. The domestic sewage denitrification device as claimed in claim 1, characterized in that The inner side of the cylinder wall bracket is fixedly connected with a limiting slide rail, and the inner side of the limiting slide rail is slidably connected with a lifting slider.

4. The domestic sewage denitrification device as claimed in claim 1, characterized in that The outlet end of the reagent adding pipe is arranged above the denitrification treatment cylinder.

5. The domestic sewage denitrification device as claimed in claim 1, characterized in that The bending position of the connecting pipe is fixedly connected with a diagonal support plate.

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